CN114719028B - Pipe clamp type groove butterfly valve - Google Patents

Pipe clamp type groove butterfly valve Download PDF

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Publication number
CN114719028B
CN114719028B CN202210403628.0A CN202210403628A CN114719028B CN 114719028 B CN114719028 B CN 114719028B CN 202210403628 A CN202210403628 A CN 202210403628A CN 114719028 B CN114719028 B CN 114719028B
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CN
China
Prior art keywords
butterfly valve
valve body
groove butterfly
section
groove
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CN202210403628.0A
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Chinese (zh)
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CN114719028A (en
Inventor
焦仕学
马壮壮
王世新
任艳青
李波
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Jinan Maike Valve Technology Co ltd
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Jinan Maike Valve Technology Co ltd
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Priority to CN202210403628.0A priority Critical patent/CN114719028B/en
Publication of CN114719028A publication Critical patent/CN114719028A/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/222—Shaping of the valve member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/226—Shaping or arrangements of the sealing
    • F16K1/2263—Shaping or arrangements of the sealing the sealing being arranged on the valve seat
    • F16K1/2265—Shaping or arrangements of the sealing the sealing being arranged on the valve seat with a channel- or U-shaped seal covering a central body portion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0209—Check valves or pivoted valves
    • F16K27/0218—Butterfly valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/60—Handles

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)
  • Valve Housings (AREA)

Abstract

The invention discloses a pipe clamp type groove butterfly valve. A pipe clamp type groove butterfly valve comprises a groove butterfly valve body, butterfly plates and a sealing rubber ring, wherein the groove butterfly valve body comprises an upper groove butterfly valve body and a lower groove butterfly valve body, 2 upper lug plates and 2 lower lug plates, and the lower groove butterfly valve body with a vertical section in a curve structure corresponds to the upper groove butterfly valve body with a vertical section in a curve structure; the upper semi-annular positioning bulge arranged at the middle part of the inner wall of the concave sealing ring bin part and the lower semi-annular positioning bulge arranged at the middle part of the inner wall of the concave sealing ring bin part form an annular positioning bulge loop. The direct connection of the groove butterfly valve and the groove pipeline is conveniently realized, the installation efficiency of the groove butterfly valve is improved, and the installation space of the groove butterfly valve is reduced; and the pipeline connection cost of the groove butterfly valve is reduced.

Description

Pipe clamp type groove butterfly valve
Technical Field
The invention belongs to a butterfly valve for pipeline connection, in particular to a pipe clamp type groove butterfly valve.
Background
At present, the existing groove butterfly valve is generally matched with two sleeve clamps for pipeline connection, so that the installation is inconvenient, time and labor are wasted, the installation efficiency is low, and a large installation space is required; and meanwhile, the pipeline connection cost of the groove butterfly valve is increased. How to conveniently realize the direct connection of the groove butterfly valve and the groove pipeline, improve the installation efficiency of the groove butterfly valve and reduce the installation space of the groove butterfly valve; reducing the pipeline connection cost of the groove butterfly valve is a problem to be solved.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: a pipe clamp type groove butterfly valve is provided. The pipe clamp type groove butterfly valve can conveniently realize direct connection of the groove butterfly valve and a groove pipe, improve the installation efficiency of the groove butterfly valve and reduce the installation space of the groove butterfly valve; the reduction of the pipeline connection cost of the groove butterfly valve can lead the compression between the butterfly plate and the assembled valve seat to be uniform, realize the sealing of the pipe clamp type groove butterfly valve and improve the sealing effect of the pipe clamp type groove butterfly valve.
The technical scheme for solving the technical problems is as follows: the utility model provides a pipe strap formula slot butterfly valve, includes slot butterfly valve body, butterfly plate, handle, sealing rubber ring, goes up pivot, lower pivot, characterized by: the groove butterfly valve body comprises an upper groove butterfly valve body and a lower groove butterfly valve body, wherein two ends of the upper groove butterfly valve body are respectively integrally formed with 2 upper lug plates connected with each other, two ends of the lower groove butterfly valve body are respectively integrally formed with 2 lower lug plates connected with each other, the longitudinal vertical cross section of the upper groove butterfly valve body is of a curve structure, the longitudinal vertical cross section of the lower groove butterfly valve body is of a curve structure, and the lower groove butterfly valve body with the longitudinal vertical cross section of the curve structure corresponds to the upper groove butterfly valve body with the longitudinal vertical cross section of the curve structure; the upper groove butterfly valve body with the vertical cross section in a curve structure uses bolt holes formed in an upper lug plate integrally formed at two ends of the upper groove butterfly valve body, two sets of bolts and nuts, and the bolt holes formed in a lower lug plate integrally formed at two ends of the lower groove butterfly valve body with the vertical cross section in a curve structure are fixedly connected with the lower groove butterfly valve body with the vertical cross section in a curve structure;
The two sides of the inner surface of the groove butterfly valve body on the curve structure of the longitudinal vertical section are respectively provided with a part clamped in the groove of the groove pipe fitting, and the curve of the longitudinal vertical section of the part clamped in the groove of the groove pipe fitting is consistent with the curve of the longitudinal vertical section of the groove butterfly valve body on the curve structure of the longitudinal vertical section; the middle part of the butterfly valve body is provided with a concave sealing ring bin part, and an upper semi-annular positioning bulge is arranged at the middle part of the inner wall of the concave sealing ring bin part, wherein the upper groove butterfly valve body is of a curve structure in the longitudinal vertical section;
the two sides of the inner surface of the groove butterfly valve body under the curve structure of the longitudinal vertical section are respectively provided with a part clamped in the groove of the groove pipe fitting, and the curve of the longitudinal vertical section of the part clamped in the groove of the groove pipe fitting is consistent with the curve of the longitudinal vertical section of the groove butterfly valve body under the curve structure of the longitudinal vertical section; the middle part of the butterfly valve body is provided with a concave sealing ring bin part, and the middle part of the inner wall of the concave sealing ring bin part is provided with a lower semi-annular positioning bulge;
the inner concave sealing ring bin part arranged in the middle of the inner surface of the upper groove butterfly valve body with the vertical cross section in a curve structure and the inner concave sealing ring bin part arranged in the middle of the inner surface of the lower groove butterfly valve body with the vertical cross section in a curve structure form a sealing rubber ring bin, and the sealing rubber ring bin is matched with the sealing rubber ring; an upper semi-annular positioning bulge arranged at the middle part of the inner wall of the concave sealing ring bin part of the upper groove butterfly valve body with the longitudinal vertical cross section in a curve structure and a lower semi-annular positioning bulge arranged at the middle part of the inner wall of the concave sealing ring bin part of the lower groove butterfly valve body with the longitudinal vertical cross section in a curve structure form an annular positioning bulge loop;
The end surfaces of the left end and the right end of the lower part of the upper semi-annular positioning bulge are respectively integrated with the two ends of the upper groove butterfly valve body with a vertical cross section in a curve structure, and the lower bottom surfaces of the left and the right upper lug plates are designed in a dislocation structure; the left end face and the right end face of the upper part of the lower semi-annular positioning bulge are respectively integrated with the two ends of the lower groove butterfly valve body with a vertical cross section in a curve structure, and the upper top surfaces of the left and the right lower lug plates are designed in a dislocation structure; the left end part of the lower part of the upper semi-annular positioning bulge extends in a staggered manner to extend out of the lower bottom surface of the left upper lug plate of the upper groove butterfly valve body with a longitudinal vertical section in a curve structure, and the distance between the end surface of the left end part of the lower part of the upper semi-annular positioning bulge and the position of the transverse middle part of the lower bottom surface of the left upper lug plate of the upper groove butterfly valve body with a longitudinal vertical section in a curve structure is 5-15mm; the right end part of the lower part of the upper semi-annular positioning bulge is staggered, contracted and retracted to the lower bottom surface of the right upper lug plate of the upper groove butterfly valve body with a curve structure in the longitudinal vertical section, and the distance between the right end surface of the lower part of the upper semi-annular positioning bulge and the transverse middle position of the lower bottom surface of the right upper lug plate of the upper groove butterfly valve body with a curve structure in the longitudinal vertical section is 5-15mm; the left end part of the upper part of the lower semi-annular positioning bulge is staggered, contracted and retracted to the upper top surface of the left lower lug plate of the lower groove butterfly valve body with a vertical cross section in a curve structure, and the distance between the left end surface of the upper part of the lower semi-annular positioning bulge and the transverse middle position of the upper top surface of the left lower lug plate of the lower groove butterfly valve body with a vertical cross section in a curve structure is 5-15mm; the right end part of the upper part of the lower semi-annular positioning bulge extends in a staggered manner to extend out of the upper top surface of the right lower lug plate of the lower groove butterfly valve body with a longitudinal vertical section in a curve structure, and the distance between the right end surface of the upper part of the lower semi-annular positioning bulge and the transverse middle position of the upper top surface of the right lower lug plate of the lower groove butterfly valve body with a longitudinal vertical section in a curve structure is 5-15mm;
The sealing rubber ring comprises an upper groove butterfly valve body inner surface concave sealing ring bin part with a curve structure of the outer surface of the sealing rubber ring and a lower groove butterfly valve body inner surface concave sealing ring bin part with a curve structure of the longitudinal vertical section, wherein a sealing rubber ring bin following type ring is arranged on an annular central line of the inner surface of the sealing rubber ring along with the sealing rubber ring bin, an inner concave groove matched with an annular positioning convex ring is arranged on the annular central line of the outer surface of the sealing rubber ring and the annular convex ring of the inner surface of the sealing rubber ring, an upper round table-shaped boss and a lower round table-shaped boss are respectively arranged on the upper part and the lower part of the inner concave groove matched with the annular positioning convex ring of the sealing rubber ring, sealing lips reversely folded towards the inner surface of the sealing rubber ring are respectively arranged on two sides of the sealing rubber ring, and the wedge-shaped sealing lips reversely folded towards the inner surface of the sealing rubber ring are not contacted with the annular convex ring arranged on the annular central line of the inner surface of the sealing rubber ring; an upper rotary shaft hole and a lower rotary shaft hole are respectively arranged in the vertical central line direction of the upper round table-shaped boss and the lower inverted round table-shaped boss which are respectively arranged in the concave grooves matched with the annular positioning convex ring, and an upper round table-shaped through hole and a lower inverted round table-shaped through hole which are respectively matched with the round table-shaped boss and the lower inverted round table-shaped boss on the sealing rubber ring are respectively arranged in the vertical central line direction of the upper part and the lower part of the annular positioning convex ring;
The inner surface of the annular positioning bulge ring is designed to be in a spherical structure, the inner surface of the annular positioning bulge ring on the annular central line of the inner surface of the sealing rubber ring along with the sealing rubber ring bin is designed to be in a spherical structure, and the butterfly plate is designed to be in a spherical structure;
the specification of the pipe clamp type groove butterfly valve is DN25-300, and the outer diameter of the sealing rubber ring is 2-6mm larger than the diameter of the sealing rubber ring bin; normally, the distance between the lower bottom surfaces of the 2 upper lug plates at the two ends of the upper groove butterfly valve body with the vertical cross section in a curve structure and the upper top surfaces of the 2 lower lug plates at the two ends of the lower groove butterfly valve body with the vertical cross section in a curve structure is 10-20mm;
the upper groove butterfly valve body with the longitudinal vertical section being of a curve structure is one of an upper groove butterfly valve body with the longitudinal vertical section being of a semicircular arc structure, an upper groove butterfly valve body with the longitudinal vertical section being of a semicircular elliptical line structure or an upper groove butterfly valve body with a section of a shorter-radius arc line and two ends of the upper groove butterfly valve body being in smooth bending connection with each other and of two sections of equal-length longer-radius arc line structures;
the lower groove butterfly valve body with the longitudinal vertical section being of a curve structure is one of a lower groove butterfly valve body with the longitudinal vertical section being of a semicircular arc structure, a lower groove butterfly valve body with the longitudinal vertical section being of a semicircular elliptical line structure or a lower groove butterfly valve body with a section of a shorter-radius arc line and two ends of the lower groove butterfly valve body being in smooth bending connection with each other and of two sections of equal-length longer-radius arc line structures;
The semi-elliptic long axis of the semi-elliptic line structure upper groove butterfly valve body with the longitudinal vertical section is 1-5mm larger than the short axis b of the semi-elliptic line structure upper groove butterfly valve body, the lower bottom surface of the integrated upper lug plate arranged at the two ends of the semi-elliptic line structure upper groove butterfly valve body with the longitudinal vertical section is an inclined surface, and the included angle A between the lower bottom surface of the integrated upper lug plate arranged at the two ends of the semi-elliptic line structure upper groove butterfly valve body and the horizontal surface is 1-3 degrees;
the semi-elliptic long axis of the semi-elliptic line structure lower groove butterfly valve body with the longitudinal vertical section is 1-5mm larger than the short axis B of the semi-elliptic line structure, the upper top surfaces of the integrated lower lug plates arranged at the two ends of the semi-elliptic line structure lower groove butterfly valve body with the longitudinal vertical section are inclined planes, and the included angle B between the upper top surfaces of the inclined planes of the integrated lower lug plates arranged at the two ends of the semi-elliptic line structure lower groove butterfly valve body with the longitudinal vertical section is 1-3 degrees;
the angle between the two end points of a section of shorter radius arc line and the center angle formed by the circle centers of the two end points of the section of shorter radius arc line and the center angle formed by the two end points of the groove butterfly valve body on the two sections of equal length longer radius arc line structures with the two ends smoothly connected with the section of shorter radius arc line is 110-120 degrees, the virtual connecting straight line formed by the two end points of the section of shorter radius arc line is parallel to the virtual connecting straight line formed by the other two end points of the two sections of equal length longer radius arc line with the two ends smoothly bent and connected with the two ends of the section of shorter radius arc line, and the length of the virtual connecting straight line formed by the other two end points of the two sections of equal length longer radius arc line structures with the two sections of shorter radius arc line is 4-8mm greater than the length of the other two sections of equal length longer radius arc line structures;
The angle between the two end points of the one section of shorter radius arc line and the center angle formed by the circle centers of the two end points of the one section of shorter radius arc line and the center angle is 110-120 degrees, the virtual connecting straight line formed by the two end points of the one section of shorter radius arc line is parallel to the virtual connecting straight line formed by the other two end points of the two sections of equal length longer radius arc line, the two ends of which are respectively and smoothly connected, of the one section of shorter radius arc line, and the virtual connecting straight line formed by the other two end points of the two sections of equal length longer radius arc line of the groove butterfly valve body under the two sections of equal length longer radius arc line structures, the two ends of which are respectively and smoothly connected, of the one section of shorter radius arc line is longer than 4-8mm;
the lower bottom surface of the integrated upper lug plate of the upper groove butterfly valve body with the structure of two sections of equal-length longer-radius circular arc lines, which are smoothly connected with the two ends of the shorter-radius circular arc lines, is an inclined surface, the vertical section is a semi-elliptic line structure, the lower bottom surface of the integrated upper lug plate of the upper groove butterfly valve body with the two ends of the upper groove butterfly valve body is an inclined surface, and the included angle A between the lower bottom surface and the horizontal plane is 1-3 degrees;
the upper top surface of the integrated lower lug plate of the two sections of equal-length longer-radius arc line structures, which are smoothly connected with the two ends of the shorter-radius arc line, is an inclined surface, the vertical section is a semi-elliptical line structure, the two ends of the integrated lower lug plate of the lower groove butterfly valve body are inclined surfaces, and the included angle B between the upper top surface of the inclined surface and the horizontal plane is 1-3 degrees.
The beneficial effects of the invention are as follows: the invention is provided with the groove butterfly valve body, the butterfly plate, the handle, the sealing rubber ring, the upper rotating shaft and the lower rotating shaft, the groove butterfly valve body comprises an upper groove butterfly valve body and a lower groove butterfly valve body, two ends of the upper groove butterfly valve body are respectively integrally formed and connected with 2 upper ear plates, two ends of the lower groove butterfly valve body are respectively integrally formed and connected with 2 lower ear plates, the longitudinal vertical section of the upper groove butterfly valve body is of a curve structure, the longitudinal vertical section of the lower groove butterfly valve body is of a curve structure, and the lower groove butterfly valve body with the longitudinal vertical section of the curve structure corresponds to the upper groove butterfly valve body with the longitudinal vertical section of the curve structure; the upper groove butterfly valve body with the vertical cross section in a curve structure uses bolt holes formed in an upper lug plate integrally formed at two ends of the upper groove butterfly valve body, two sets of bolts and nuts, and the bolt holes formed in a lower lug plate integrally formed at two ends of the lower groove butterfly valve body with the vertical cross section in a curve structure are fixedly connected with the lower groove butterfly valve body with the vertical cross section in a curve structure; under the pre-assembly state of the pipe clamp type groove butterfly valve, the distance between the lower bottom surfaces of the two end 2 lower lug plates of the upper groove butterfly valve body with the vertical cross section in a curve structure and the upper top surfaces of the two end 2 lower lug plates of the lower groove butterfly valve body with the vertical cross section in a curve structure is 10-20mm, so that the initial compression amount of the pipe clamp type groove butterfly valve is formed, the pipe clamp type groove butterfly valve can conveniently push the groove pipe ends of the connected pipe pipeline sections into the pipe clamp type groove butterfly valve body under the normal state of the pipe clamp type groove butterfly valve, and the pipe clamp type groove is realized
The groove butterfly valve is convenient and quick to install, saves time and labor, improves the installation efficiency of the pipe clamp type groove butterfly valve, and reduces the installation space of the groove butterfly valve; the pipeline connection cost of the groove butterfly valve is reduced. Referring to a comparison table of installation and use effects of the pipe clamp type groove butterfly valve and the traditional groove butterfly valve.
The invention relates to a pipe clamp type groove butterfly valve and a traditional groove butterfly valve mounting and using effect comparison table
The comparison table of the installation and use effects of the pipe clamp type groove butterfly valve and the traditional groove butterfly valve can be used for obtaining: the installation speed of the pipe clamp type groove butterfly valve is 0.97min for each piece, and the installation speed of the traditional groove butterfly valve (the pipe clamps on two sides are required to be added in installation) is 6.42min for each piece, and compared with the traditional groove butterfly valve (the pipe clamps on two sides are required to be added in installation), the installation speed of the single piece pipe clamp type groove butterfly valve is improved by 6.62 times; compared with the traditional single-piece groove butterfly valve (two side pipe clamps are added in installation), the cost of the single-piece pipe clamp type groove butterfly valve is reduced 34.19.
Because the end surfaces of the left and right ends of the lower part of the upper semi-annular positioning bulge are respectively integrated with the two ends of the upper groove butterfly valve body with a vertical section in a curve structure, the lower bottom surfaces of the left and right upper lug plates are designed in a dislocation structure; the left end face and the right end face of the upper part of the lower semi-annular positioning bulge are respectively integrated with the two ends of the lower groove butterfly valve body with a vertical cross section in a curve structure, and the upper top surfaces of the left and the right lower lug plates are designed in a dislocation structure; the left end part of the lower part of the upper semi-annular positioning bulge extends in a staggered way to extend out of the lower bottom surface of the left upper lug plate of the upper groove butterfly valve body with a vertical cross section in a curve structure, and the distance between the left end surface of the lower part of the upper semi-annular positioning bulge and the position of the transverse middle part of the lower bottom surface of the left upper lug plate of the upper groove butterfly valve body with a vertical cross section in a curve structure is 5-15mm; the right end part of the lower part of the upper semi-annular positioning bulge is staggered, contracted and retracted to the lower bottom surface of the right upper lug plate of the upper groove butterfly valve body with a curve structure in the longitudinal vertical section, and the distance between the right end surface of the lower part of the upper semi-annular positioning bulge and the position of the transverse middle part of the lower bottom surface of the right upper lug plate of the upper groove butterfly valve body with a curve structure in the longitudinal vertical section is 5-15mm; the left end part of the upper part of the lower semi-annular positioning bulge is staggered, contracted and retracted to the upper top surface of the left upper lug plate of the lower groove butterfly valve body with a vertical section in a curve structure, and the distance between the left end surface of the upper part of the lower semi-annular positioning bulge and the transverse middle position of the upper top surface of the left upper lug plate of the lower groove butterfly valve body with a vertical section in a curve structure is 5-15mm; the right end part of the upper part of the lower semi-annular positioning bulge is staggered and extends to extend out of the upper top surface of the right upper lug plate of the lower groove butterfly valve body with a vertical cross section in a curve structure, and the distance between the right end surface of the upper part of the lower semi-annular positioning bulge and the transverse middle position of the upper top surface of the right lower lug plate of the lower groove butterfly valve body with a vertical cross section in a curve structure is 5-15mm; when the two sets of bolts and nuts are fastened in a rotating manner, and the upper groove butterfly valve body with the vertical cross section in a curve structure and the lower groove butterfly valve body with the vertical cross section in a curve structure are fastened, the assembled valve seat formed by the annular positioning convex ring and the sealing rubber ring provided with the concave groove matched with the annular positioning convex ring is uniformly compressed, so that the compression amount between the butterfly plate and the assembled valve seat is uniform, the sealing effect of the pipe clamp type groove butterfly valve is realized, and the sealing effect of the pipe clamp type groove butterfly valve is improved. The comparison table of the installation sealing effect of the pipe clamp type groove butterfly valve and the traditional groove butterfly valve is shown below.
The invention relates to a pipe clamp type groove butterfly valve and a traditional groove butterfly valve mounting sealing effect comparison table
Remarks description: two pipe clamps are arranged on two sides of a traditional groove butterfly valve to generate 2 leakage risk points, and the pipe clamp type groove butterfly valve comprises an upper groove butterfly valve body and a lower groove butterfly valve body to generate 1 leakage risk point;
additionally existing leakage risk points (i.e. leakage points that occur at installation); 1: because the sealing surface of the pipeline groove is not cleaned, or the sealing surface of the pipeline groove is out of round, valve leakage is easy to occur (the leakage risk exists in the traditional groove butterfly valve and the pipe clamp type groove butterfly valve); leakage risk point 2: the leakage risk of the traditional groove butterfly valve is caused by the reasons of collision or out-of-round of the position of the traditional groove butterfly valve, the defects of the connecting pipe clamp and the like (the pipe clamp type groove butterfly valve also has the same leakage risk).
The comparison table of the installation and use effects of the pipe clamp type groove butterfly valve and the traditional groove butterfly valve can be used for obtaining: the leakage risk points of the pipe clamp type groove butterfly valve are 1 in one piece, and the leakage risk points of the traditional groove butterfly valve (two sides of pipe clamps are required to be added in installation) are 2 in one piece, and compared with the traditional groove butterfly valve (two sides of pipe clamps are required to be added in installation), the leakage risk points of the single pipe clamp type groove butterfly valve are reduced by 50%.
The inner surface of the annular positioning bulge ring is designed to be in a spherical structure, the inner surface of the annular positioning bulge ring and the inner surface of the annular center line of the inner surface of the seal rubber ring along with the seal rubber ring are designed to be in a spherical structure, and the butterfly plate is designed to be in a spherical structure; the assembled valve seat formed by the butterfly plate, the annular positioning bulge ring and the sealing rubber ring is uniformly compressed, the sealing effect of the pipe clamp type groove butterfly valve is improved, and meanwhile, the torque of the pipe clamp type groove butterfly valve butterfly plate is reduced.
Drawings
The invention is further described below with reference to the drawings and examples;
FIG. 1 is an exploded schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the loose connection of the present invention;
FIG. 3 is a schematic view of the A-A structure of FIG. 2 in accordance with the present invention;
FIG. 4 is a schematic view of the structure of the present invention in the use state;
FIG. 5 is a left side view of the present invention in use;
FIG. 6 is a schematic structural view of a sealing rubber ring of the present invention;
FIG. 7 is a perspective view of a sealing gasket of the present invention;
FIG. 8 is a perspective view of the upper groove butterfly valve body with a curved longitudinal section and the lower groove butterfly valve body with a curved longitudinal section;
FIG. 9 is a schematic diagram of the structure of the upper groove butterfly valve body with a semicircular arc structure in the longitudinal vertical section and the lower groove butterfly valve body with a semicircular arc structure in the longitudinal vertical section;
FIG. 10 is a schematic view of the structure of the upper groove butterfly valve body with a semi-elliptical structure in the longitudinal vertical section and the lower groove butterfly valve body with a semi-elliptical structure in the longitudinal vertical section;
FIG. 11 is a schematic diagram of the structure of the upper groove butterfly valve body of the two equal length longer radius circular arc structures with a section of shorter radius circular arc and two ends thereof being connected in a smooth bending manner, and the lower groove butterfly valve body of the two equal length longer radius circular arc structures with a section of shorter radius circular arc and two ends thereof being connected in a smooth bending manner;
FIG. 12 is a schematic structural view of an upper groove butterfly valve body with a semicircular arc structure in the longitudinal vertical section and a lower groove butterfly valve body with a semicircular arc structure in the longitudinal vertical section, showing the states of an upper semicircular positioning protrusion and a lower semicircular positioning protrusion respectively;
FIG. 13 is a schematic view of the structure of the upper groove butterfly valve body with a semi-elliptical structure in longitudinal vertical section and the lower groove butterfly valve body with a semi-elliptical structure in longitudinal vertical section, showing the states of the upper semi-annular positioning protrusion and the lower semi-annular positioning protrusion respectively;
FIG. 14 is a schematic structural view showing the states of an upper semi-annular positioning protrusion and a lower semi-annular positioning protrusion of an upper groove butterfly valve body with a section of a shorter-radius arc line and two sections of equal-length longer-radius arc line structures with both ends thereof being in smooth bending connection, and a lower groove butterfly valve body with a section of a shorter-radius arc line and two sections of equal-length longer-radius arc line structures with both ends thereof being in smooth bending connection;
In the accompanying drawings: 1. the novel butterfly valve comprises a butterfly plate, a handle, a sealing rubber ring, an upper rotating shaft, a lower rotating shaft, an upper groove butterfly valve body, a lower groove butterfly valve body, an upper lug plate, a lower lug plate, a bolt, a lower lug plate and a bolt. 11, nuts 61, an upper groove butterfly valve body with a semicircular arc structure in the longitudinal vertical section, 62, an upper groove butterfly valve body with a semicircular elliptic line structure in the longitudinal vertical section 63, a section of a shorter radius arc line, two sections of equal length longer radius arc line structural upper groove butterfly valve bodies and 71 which are connected with both ends of the shorter radius arc line in a smooth bending way, a longitudinal vertical section of a lower groove butterfly valve body and 72 which are of a semicircular arc line structural lower groove butterfly valve body, a longitudinal vertical section of a semicircular elliptic line structural lower groove butterfly valve body the valve comprises a lower groove butterfly valve body with a short radius arc line structure, two equal length long radius arc line structures, namely a 621.A included angle, a 721.B included angle, a 631.A short radius arc line, a 632.B long radius arc line, a 633.C included angle, a 731.C short radius arc line, a 732.D long radius arc line, a 733.D included angle, a 12. Upper semi-annular positioning bulge, a 13. Lower semi-annular positioning bulge, a 14. Annular positioning bulge loop, a 31. Annular bulge loop, a 311. Concave groove, a 32. Sealing lip, a 33. Upper rotating shaft hole, a 34. Lower rotating shaft hole and a 15. Sealing rubber ring bin.
Detailed Description
The present invention will be described in further detail with reference to the following examples.
Example 1
As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9, and fig. 12, a pipe clamp type groove butterfly valve comprises a groove butterfly valve body, a butterfly plate 1, a handle 2, a sealing rubber ring 3, an upper rotating shaft 4, and a lower rotating shaft 5, and is characterized in that: the groove butterfly valve body comprises an upper groove butterfly valve body 6 and a lower groove butterfly valve body 7, wherein two ends of the upper groove butterfly valve body 6 are respectively integrally formed with 2 upper lug plates 8 connected with each other, two ends of the lower groove butterfly valve body 7 are respectively integrally formed with 2 lower lug plates 9 connected with each other, the longitudinal vertical cross section of the upper groove butterfly valve body 6 is of a curve structure, the longitudinal vertical cross section of the lower groove butterfly valve body 7 is of a curve structure, and the lower groove butterfly valve body with the longitudinal vertical cross section of the curve structure corresponds to the upper groove butterfly valve body with the longitudinal vertical cross section of the curve structure; the upper groove butterfly valve body with the vertical cross section in a curve structure uses bolt holes arranged on upper lug plates integrally formed at two ends of the upper groove butterfly valve body, two sets of bolts 10 and nuts 11 are fixedly connected with the lower groove butterfly valve body with the vertical cross section in a curve structure by bolt holes arranged on lower lug plates integrally formed at two ends of the lower groove butterfly valve body with the vertical cross section in a curve structure;
The two sides of the inner surface of the groove butterfly valve body on the curve structure of the longitudinal vertical section are respectively provided with a part clamped in the groove of the groove pipe fitting, and the curve of the longitudinal vertical section of the part clamped in the groove of the groove pipe fitting is consistent with the curve of the longitudinal vertical section of the groove butterfly valve body on the curve structure of the longitudinal vertical section; the middle part is provided with a concave sealing ring bin part, and an upper semi-annular positioning bulge 12 is arranged at the middle part of the inner wall of the concave sealing ring bin part of the upper groove butterfly valve body with a vertical cross section in a curve structure;
the two sides of the inner surface of the groove butterfly valve body under the curve structure of the longitudinal vertical section are respectively provided with a part clamped in the groove of the groove pipe fitting, and the curve of the longitudinal vertical section of the part clamped in the groove of the groove pipe fitting is consistent with the curve of the longitudinal vertical section of the groove butterfly valve body under the curve structure of the longitudinal vertical section; the middle part of the butterfly valve is provided with a concave sealing ring bin part, and the middle part of the inner wall of the concave sealing ring bin part is provided with a lower semi-annular positioning bulge 13;
the inner concave sealing ring bin part arranged in the middle of the inner surface of the upper groove butterfly valve body with the vertical cross section in a curve structure and the inner concave sealing ring bin part arranged in the middle of the inner surface of the lower groove butterfly valve body with the vertical cross section in a curve structure form a sealing rubber ring bin 15, and the sealing rubber ring bin 15 is matched with the sealing rubber ring 3; an upper semi-annular positioning bulge 12 arranged at the middle part of the inner wall of the concave sealing ring bin part of the upper groove butterfly valve body with the vertical cross section in a curve structure and a lower semi-annular positioning bulge 13 arranged at the middle part of the inner wall of the concave sealing ring bin part of the lower groove butterfly valve body with the vertical cross section in a curve structure form an annular positioning bulge loop 14;
The left and right end surfaces of the lower part of the upper semi-annular positioning bulge 12 are respectively integrated with the two ends of the upper groove butterfly valve body with a vertical cross section in a curve structure, and the lower bottom surfaces of the left and right upper lug plates 8 are designed in a dislocation structure; the left and right end surfaces of the upper part of the lower semi-annular positioning bulge 13 are respectively integrated with the two ends of the lower groove butterfly valve body with a vertical cross section in a curve structure, and the upper top surfaces of the left and right lower lug plates 9 are designed in a dislocation structure; the left end part of the lower part of the upper semi-annular positioning bulge 12 extends in a staggered manner to extend out of the lower bottom surface of the upper left lug plate 8 of the upper groove butterfly valve body with a vertical cross section in a curve structure, and the distance between the end surface of the left end part of the lower part of the upper semi-annular positioning bulge 12 and the position of the lower bottom surface of the lower middle part of the upper left lug plate 8 of the upper groove butterfly valve body with a vertical cross section in a curve structure is 5mm; the right end part of the lower part of the upper semi-annular positioning bulge 12 is staggered, contracted and retracted to the lower bottom surface of the upper right ear plate 8 of the upper groove butterfly valve body with a curve structure in the vertical section, and the distance between the right end surface of the lower part of the upper semi-annular positioning bulge 12 and the lower middle position of the lower bottom surface of the upper right ear plate 8 of the upper groove butterfly valve body with a curve structure in the vertical section is 5mm; the left end part of the upper part of the lower semi-annular positioning bulge 13 is staggered, contracted and retracted to the upper top surface of the left lower lug plate 9 of the lower groove butterfly valve body with a vertical cross section in a curve structure, and the distance between the end surface of the left end part of the upper part of the lower semi-annular positioning bulge 13 and the transverse middle position of the upper top surface of the left lower lug plate 9 of the lower groove butterfly valve body with a vertical cross section in a curve structure is 5mm; the right end part of the upper part of the lower semi-annular positioning bulge 13 extends in a staggered way to extend out of the upper top surface of the right lower lug plate 9 of the lower groove butterfly valve body with a vertical cross section in a curve structure, and the distance between the right end surface of the upper part of the lower semi-annular positioning bulge 13 and the transverse middle position of the upper top surface of the right lower lug plate 9 of the lower groove butterfly valve body with a vertical cross section in a curve structure is 5mm;
The outer surface of the sealing rubber ring 3 and the longitudinal vertical section form a concave sealing ring bin part of the inner surface of the upper groove butterfly valve body with a curve structure, and the longitudinal vertical section is a concave sealing ring bin part of the inner surface of the lower groove butterfly valve body with a curve structure, a sealing rubber ring bin 15 formed by the concave sealing ring bin part of the inner surface of the upper groove butterfly valve body with the curve structure is arranged on an annular central line of the inner surface of the sealing rubber ring 3 along with the sealing rubber ring 15, an annular bulge ring 31 is arranged on the annular central line of the outer surface of the sealing rubber ring and the annular bulge ring of the inner surface of the sealing rubber ring, concave grooves 311 matched with the annular positioning bulge ring 14 are arranged on the annular central line of the outer surface of the sealing rubber ring and the annular bulge ring of the inner surface of the sealing rubber ring 3, an upper round table-shaped boss and a lower round table-shaped boss are respectively arranged on the upper part and the lower vertical central line of the concave groove 311 matched with the annular positioning bulge ring 14, sealing lips 32 which are reversely folded towards the inner surface of the sealing rubber ring 3 are respectively arranged on two sides, and the sealing lips 32 which are wedge-shaped sealing lips are respectively arranged on two sides of the sealing ring 3, and the sealing lips which reversely folded towards the inner surface of the sealing ring is not contacted with the annular bulge ring arranged on the annular bulge ring; an upper rotary shaft hole 33 and a lower rotary shaft hole 34 are respectively arranged in the vertical central line direction of an upper round table-shaped boss and a lower inverted round table-shaped boss which are respectively arranged in an inner concave groove 311 of the sealing rubber ring 3 and the annular positioning convex ring 14 in a matching manner, and an upper round table-shaped through hole and a lower inverted round table-shaped through hole which are respectively matched with the upper round table-shaped boss and the lower inverted round table-shaped boss of the sealing rubber ring 3 are respectively arranged in the vertical central line direction of the upper part and the lower part of the annular positioning convex ring 14;
The inner surface of the annular positioning bulge loop 14 is of a spherical structure design, the inner surface of the annular bulge loop on the annular central line of the inner surface of the seal rubber ring 3 along with the seal rubber ring bin 15 is of a spherical structure design, and the butterfly plate 1 is of a spherical structure design;
the upper groove butterfly valve body 61 with the longitudinal vertical section in a curve structure is an upper groove butterfly valve body with the longitudinal vertical section in a semicircular arc structure;
the specification of the pipe clamp type groove butterfly valve is DN25, and the outer diameter of the sealing rubber ring 3 is 2mm larger than the diameter of the sealing rubber ring bin 15; normally, the distance between the lower bottom surfaces of the two ends 2 upper lug plates 8 of the upper groove butterfly valve body with the vertical cross section in a curve structure and the upper top surfaces of the two ends 2 lower lug plates 9 of the lower groove butterfly valve body with the vertical cross section in a curve structure is 10mm;
the lower groove butterfly valve body 71 with the vertical cross section in a curve structure is a lower groove butterfly valve body with the vertical cross section in a semicircular arc structure.
Example 2
As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 10, and fig. 13, a pipe clamp type groove butterfly valve comprises a groove butterfly valve body, a butterfly plate 1, a handle 2, a sealing rubber ring 3, an upper rotating shaft 4, and a lower rotating shaft 5, and is characterized in that: the groove butterfly valve body comprises an upper groove butterfly valve body 6 and a lower groove butterfly valve body 7, wherein two ends of the upper groove butterfly valve body 6 are respectively integrally formed with 2 upper lug plates 8 connected with each other, two ends of the lower groove butterfly valve body 7 are respectively integrally formed with 2 lower lug plates 9 connected with each other, the longitudinal vertical cross section of the upper groove butterfly valve body 6 is of a curve structure, the longitudinal vertical cross section of the lower groove butterfly valve body 7 is of a curve structure, and the lower groove butterfly valve body with the longitudinal vertical cross section of the curve structure corresponds to the upper groove butterfly valve body with the longitudinal vertical cross section of the curve structure; the upper groove butterfly valve body with the vertical cross section in a curve structure uses bolt holes arranged on upper lug plates integrally formed at two ends of the upper groove butterfly valve body, two sets of bolts 10 and nuts 11 are fixedly connected with the lower groove butterfly valve body with the vertical cross section in a curve structure by bolt holes arranged on lower lug plates integrally formed at two ends of the lower groove butterfly valve body with the vertical cross section in a curve structure;
The two sides of the inner surface of the groove butterfly valve body on the curve structure of the longitudinal vertical section are respectively provided with a part clamped in the groove of the groove pipe fitting, and the curve of the longitudinal vertical section of the part clamped in the groove of the groove pipe fitting is consistent with the curve of the longitudinal vertical section of the groove butterfly valve body on the curve structure of the longitudinal vertical section; the middle part is provided with a concave sealing ring bin part, and an upper semi-annular positioning bulge 12 is arranged at the middle part of the inner wall of the concave sealing ring bin part of the upper groove butterfly valve body with a vertical cross section in a curve structure;
the two sides of the inner surface of the groove butterfly valve body under the curve structure of the longitudinal vertical section are respectively provided with a part clamped in the groove of the groove pipe fitting, and the curve of the longitudinal vertical section of the part clamped in the groove of the groove pipe fitting is consistent with the curve of the longitudinal vertical section of the groove butterfly valve body under the curve structure of the longitudinal vertical section; the middle part of the butterfly valve is provided with a concave sealing ring bin part, and the middle part of the inner wall of the concave sealing ring bin part is provided with a lower semi-annular positioning bulge 13; the inner concave sealing ring bin part arranged in the middle of the inner surface of the upper groove butterfly valve body with the vertical cross section in a curve structure and the inner concave sealing ring bin part arranged in the middle of the inner surface of the lower groove butterfly valve body with the vertical cross section in a curve structure form a sealing rubber ring bin 15, and the sealing rubber ring bin 15 is matched with the sealing rubber ring 3; an upper semi-annular positioning bulge 12 arranged at the middle part of the inner wall of the concave sealing ring bin part of the upper groove butterfly valve body with the vertical cross section in a curve structure and a lower semi-annular positioning bulge 13 arranged at the middle part of the inner wall of the concave sealing ring bin part of the lower groove butterfly valve body with the vertical cross section in a curve structure form an annular positioning bulge loop 14;
The left and right end surfaces of the lower part of the upper semi-annular positioning bulge 12 are respectively integrated with the two ends of the upper groove butterfly valve body with a vertical cross section in a curve structure, and the lower bottom surfaces of the left and right upper lug plates 8 are designed in a dislocation structure; the left and right end surfaces of the upper part of the lower semi-annular positioning bulge 13 are respectively integrated with the two ends of the lower groove butterfly valve body with a vertical cross section in a curve structure, and the upper top surfaces of the left and right lower lug plates 9 are designed in a dislocation structure; the left end part of the lower part of the upper semi-annular positioning bulge 12 extends in a staggered manner to extend out of the lower bottom surface of the upper left lug plate 8 of the upper groove butterfly valve body with a longitudinal vertical section in a curve structure, and the distance between the end surface of the left end part of the lower part of the upper semi-annular positioning bulge 12 and the position of the lower bottom surface of the upper left lug plate 8 of the upper groove butterfly valve body with a longitudinal vertical section in a curve structure is 10mm; the right end part of the lower part of the upper semi-annular positioning bulge 12 is staggered, contracted and retracted to the lower bottom surface of the upper right ear plate 8 of the upper groove butterfly valve body with a curve structure in the vertical section, and the distance between the right end surface of the lower part of the upper semi-annular positioning bulge 12 and the lower middle position of the lower bottom surface of the upper right ear plate 8 of the upper groove butterfly valve body with a curve structure in the vertical section is 10mm; the left end part of the upper part of the lower semi-annular positioning bulge 13 is staggered, contracted and retracted to the upper top surface of the left lower lug plate 9 of the lower groove butterfly valve body with a vertical cross section in a curve structure, and the distance between the end surface of the left end part of the upper part of the lower semi-annular positioning bulge 13 and the transverse middle position of the upper top surface of the left lower lug plate 9 of the lower groove butterfly valve body with a vertical cross section in a curve structure is 10mm; the right end part of the upper part of the lower semi-annular positioning bulge 13 extends in a staggered way to extend out of the upper top surface of the right lower lug plate 9 of the lower groove butterfly valve body with a vertical cross section in a curve structure, and the distance between the right end surface of the upper part of the lower semi-annular positioning bulge 13 and the transverse middle position of the upper top surface of the right lower lug plate 9 of the lower groove butterfly valve body with a vertical cross section in a curve structure is 10mm;
The outer surface of the sealing rubber ring 3 and the longitudinal vertical section form a concave sealing ring bin part of the inner surface of the upper groove butterfly valve body with a curve structure, and the longitudinal vertical section is a concave sealing ring bin part of the inner surface of the lower groove butterfly valve body with a curve structure, a sealing rubber ring bin 15 formed by the concave sealing ring bin part of the inner surface of the upper groove butterfly valve body with the curve structure is arranged on an annular central line of the inner surface of the sealing rubber ring 3 along with the sealing rubber ring 15, an annular bulge ring 31 is arranged on the annular central line of the outer surface of the sealing rubber ring and the annular bulge ring of the inner surface of the sealing rubber ring, concave grooves 311 matched with the annular positioning bulge ring 14 are arranged on the annular central line of the outer surface of the sealing rubber ring and the annular bulge ring of the inner surface of the sealing rubber ring 3, an upper round table-shaped boss and a lower round table-shaped boss are respectively arranged on the upper part and the lower vertical central line of the concave groove 311 matched with the annular positioning bulge ring 14, sealing lips 32 which are reversely folded towards the inner surface of the sealing rubber ring 3 are respectively arranged on two sides, and the sealing lips 32 which are wedge-shaped sealing lips are respectively arranged on two sides of the sealing ring 3, and the sealing lips which reversely folded towards the inner surface of the sealing ring is not contacted with the annular bulge ring arranged on the annular bulge ring; an upper rotary shaft hole 33 and a lower rotary shaft hole 34 are respectively arranged in the vertical central line direction of an upper round table-shaped boss and a lower inverted round table-shaped boss which are respectively arranged in an inner concave groove 311 of the sealing rubber ring 3 and the annular positioning convex ring 14 in a matching manner, and an upper round table-shaped through hole and a lower inverted round table-shaped through hole which are respectively matched with the upper round table-shaped boss and the lower inverted round table-shaped boss of the sealing rubber ring 3 are respectively arranged in the vertical central line direction of the upper part and the lower part of the annular positioning convex ring 14;
The inner surface of the annular positioning bulge loop 14 is of a spherical structure design, the inner surface of the annular bulge loop on the annular central line of the inner surface of the seal rubber ring 3 along with the seal rubber ring bin 15 is of a spherical structure design, and the butterfly plate 1 is of a spherical structure design;
the specification of the pipe clamp type groove butterfly valve is DN200, and the outer diameter of the sealing rubber ring 3 is larger than the diameter of the sealing rubber ring bin 15 by 4mm; normally, the distance between the lower bottom surfaces of the two ends 2 upper lug plates 8 of the upper groove butterfly valve body with the vertical cross section in a curve structure and the upper top surfaces of the two ends 2 lower lug plates 9 of the lower groove butterfly valve body with the vertical cross section in a curve structure is 15mm;
the upper groove butterfly valve body 62 with a curve structure in the longitudinal vertical section is an upper groove butterfly valve body with a semi-elliptic structure in the longitudinal vertical section;
the lower groove butterfly valve body 72 with a curve structure in the longitudinal vertical section is a lower groove butterfly valve body with a semi-elliptic structure in the longitudinal vertical section;
the semi-elliptic long axis of the semi-elliptic line structure upper groove butterfly valve body with the longitudinal vertical section is 1-5mm larger than the short axis b of the semi-elliptic line structure upper groove butterfly valve body, the lower bottom surface of the integrated upper lug plate 8 arranged at the two ends of the semi-elliptic line structure upper groove butterfly valve body with the longitudinal vertical section is an inclined surface, and the angle 621 between the lower bottom surface of the integrated upper lug plate arranged at the two ends of the semi-elliptic line structure upper groove butterfly valve body and the horizontal surface is 1-3 degrees;
The semi-elliptic long axis of the semi-elliptic line structure lower groove butterfly valve body with the longitudinal vertical section is 1-5mm larger than the short axis B of the semi-elliptic line structure, the upper top surfaces of the integrated lower lug plates 9 arranged at the two ends of the semi-elliptic line structure lower groove butterfly valve body with the longitudinal vertical section are inclined surfaces, and the included angle 721 between the upper top surfaces of the inclined surfaces and the horizontal plane is 1-3 degrees.
Example 3
As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 11, and fig. 14, a pipe clamp type groove butterfly valve comprises a groove butterfly valve body, a butterfly plate 1, a handle 2, a sealing rubber ring 3, an upper rotating shaft 4, and a lower rotating shaft 5, and is characterized in that: the groove butterfly valve body comprises an upper groove butterfly valve body 6 and a lower groove butterfly valve body 7, wherein two ends of the upper groove butterfly valve body 6 are respectively integrally formed with 2 upper lug plates 8 connected with each other, two ends of the lower groove butterfly valve body 7 are respectively integrally formed with 2 lower lug plates 9 connected with each other, the longitudinal vertical cross section of the upper groove butterfly valve body 6 is of a curve structure, the longitudinal vertical cross section of the lower groove butterfly valve body 7 is of a curve structure, and the lower groove butterfly valve body with the longitudinal vertical cross section of the curve structure corresponds to the upper groove butterfly valve body with the longitudinal vertical cross section of the curve structure; the upper groove butterfly valve body with the vertical cross section in a curve structure uses bolt holes arranged on upper lug plates integrally formed at two ends of the upper groove butterfly valve body, two sets of bolts 10 and nuts 11 are fixedly connected with the lower groove butterfly valve body with the vertical cross section in a curve structure by bolt holes arranged on lower lug plates integrally formed at two ends of the lower groove butterfly valve body with the vertical cross section in a curve structure;
The two sides of the inner surface of the groove butterfly valve body on the curve structure of the longitudinal vertical section are respectively provided with a part clamped in the groove of the groove pipe fitting, and the curve of the longitudinal vertical section of the part clamped in the groove of the groove pipe fitting is consistent with the curve of the longitudinal vertical section of the groove butterfly valve body on the curve structure of the longitudinal vertical section; the middle part is provided with a concave sealing ring bin part, and an upper semi-annular positioning bulge 12 is arranged at the middle part of the inner wall of the concave sealing ring bin part of the upper groove butterfly valve body with a vertical cross section in a curve structure;
the two sides of the inner surface of the groove butterfly valve body under the curve structure of the longitudinal vertical section are respectively provided with a part clamped in the groove of the groove pipe fitting, and the curve of the longitudinal vertical section of the part clamped in the groove of the groove pipe fitting is consistent with the curve of the longitudinal vertical section of the groove butterfly valve body under the curve structure of the longitudinal vertical section; the middle part of the butterfly valve is provided with a concave sealing ring bin part, and the middle part of the inner wall of the concave sealing ring bin part is provided with a lower semi-annular positioning bulge 13; the inner concave sealing ring bin part arranged in the middle of the inner surface of the upper groove butterfly valve body with the vertical cross section in a curve structure and the inner concave sealing ring bin part arranged in the middle of the inner surface of the lower groove butterfly valve body with the vertical cross section in a curve structure form a sealing rubber ring bin 15, and the sealing rubber ring bin 15 is matched with the sealing rubber ring 3; an upper semi-annular positioning bulge 12 arranged at the middle part of the inner wall of the concave sealing ring bin part of the upper groove butterfly valve body with the vertical cross section in a curve structure and a lower semi-annular positioning bulge 13 arranged at the middle part of the inner wall of the concave sealing ring bin part of the lower groove butterfly valve body with the vertical cross section in a curve structure form an annular positioning bulge loop 14;
The left and right end surfaces of the lower part of the upper semi-annular positioning bulge 12 are respectively integrated with the two ends of the upper groove butterfly valve body with a vertical cross section in a curve structure, and the lower bottom surfaces of the left and right upper lug plates 8 are designed in a dislocation structure; the left and right end surfaces of the upper part of the lower semi-annular positioning bulge 13 are respectively integrated with the two ends of the lower groove butterfly valve body with a vertical cross section in a curve structure, and the upper top surfaces of the left and right lower lug plates 9 are designed in a dislocation structure; the left end part of the lower part of the upper semi-annular positioning bulge 12 extends in a staggered manner to extend out of the lower bottom surface of the upper left lug plate 8 of the upper groove butterfly valve body with a longitudinal vertical section in a curve structure, and the distance between the end surface of the left end part of the lower part of the upper semi-annular positioning bulge 12 and the position of the lower bottom surface of the lower middle part of the upper left lug plate 8 of the upper groove butterfly valve body with the longitudinal vertical section in the curve structure is 15mm; the right end part of the lower part of the upper semi-annular positioning bulge 12 is staggered, contracted and retracted to the lower bottom surface of the upper right ear plate 8 of the upper groove butterfly valve body with a curve structure in the vertical section, and the distance between the right end surface of the lower part of the upper semi-annular positioning bulge 12 and the lower middle position of the lower bottom surface of the upper right ear plate 8 of the upper groove butterfly valve body with a curve structure in the vertical section is 15mm; the left end part of the upper part of the lower semi-annular positioning bulge 13 is staggered, contracted and retracted to the upper top surface of the left lower lug plate 9 of the lower groove butterfly valve body with a vertical cross section in a curve structure, and the distance between the end surface of the left end part of the upper part of the lower semi-annular positioning bulge 13 and the transverse middle position of the upper top surface of the left lower lug plate 9 of the lower groove butterfly valve body with a vertical cross section in a curve structure is 15mm; the right end part of the upper part of the lower semi-annular positioning bulge 13 extends in a staggered way to extend out of the upper top surface of the right lower lug plate 9 of the lower groove butterfly valve body with a vertical cross section in a curve structure, and the distance between the right end surface of the upper part of the lower semi-annular positioning bulge 13 and the transverse middle position of the upper top surface of the right lower lug plate 9 of the lower groove butterfly valve body with a vertical cross section in a curve structure is 15mm;
The outer surface of the sealing rubber ring 3 and the longitudinal vertical section form a concave sealing ring bin part of the inner surface of the upper groove butterfly valve body with a curve structure, and the longitudinal vertical section is a concave sealing ring bin part of the inner surface of the lower groove butterfly valve body with a curve structure, a sealing rubber ring bin 15 formed by the concave sealing ring bin part of the inner surface of the upper groove butterfly valve body with the curve structure is arranged on an annular central line of the inner surface of the sealing rubber ring 3 along with the sealing rubber ring 15, an annular bulge ring 31 is arranged on the annular central line of the outer surface of the sealing rubber ring and the annular bulge ring of the inner surface of the sealing rubber ring, concave grooves 311 matched with the annular positioning bulge ring 14 are arranged on the annular central line of the outer surface of the sealing rubber ring and the annular bulge ring of the inner surface of the sealing rubber ring 3, an upper round table-shaped boss and a lower round table-shaped boss are respectively arranged on the upper part and the lower vertical central line of the concave groove 311 matched with the annular positioning bulge ring 14, sealing lips 32 which are reversely folded towards the inner surface of the sealing rubber ring 3 are respectively arranged on two sides, and the sealing lips 32 which are wedge-shaped sealing lips are respectively arranged on two sides of the sealing ring 3, and the sealing lips which reversely folded towards the inner surface of the sealing ring is not contacted with the annular bulge ring arranged on the annular bulge ring; an upper rotary shaft hole 33 and a lower rotary shaft hole 34 are respectively arranged in the vertical central line direction of an upper round table-shaped boss and a lower inverted round table-shaped boss which are respectively arranged in an inner concave groove 311 of the sealing rubber ring 3 and the annular positioning convex ring 14 in a matching manner, and an upper round table-shaped through hole and a lower inverted round table-shaped through hole which are respectively matched with the upper round table-shaped boss and the lower inverted round table-shaped boss of the sealing rubber ring 3 are respectively arranged in the vertical central line direction of the upper part and the lower part of the annular positioning convex ring 14;
The inner surface of the annular positioning bulge loop 14 is of a spherical structure design, the inner surface of the annular bulge loop on the annular central line of the inner surface of the seal rubber ring 3 along with the seal rubber ring bin 15 is of a spherical structure design, and the butterfly plate 1 is of a spherical structure design;
the specification of the pipe clamp type groove butterfly valve is DN300, and the outer diameter of the sealing rubber ring 3 is larger than the diameter of the sealing rubber ring bin 15 by 6mm; normally, the distance between the lower bottom surfaces of the two ends 2 upper lug plates 8 of the upper groove butterfly valve body with the vertical cross section in a curve structure and the upper top surfaces of the two ends 2 lower lug plates 9 of the lower groove butterfly valve body with the vertical cross section in a curve structure is 20mm;
the upper groove butterfly valve body 63 with the longitudinal vertical section being of a curve structure is of a section of a shorter radius arc line and two sections of equal length longer radius arc line structures which are connected with the two ends of the shorter radius arc line in a smooth bending mode; the upper groove butterfly valve body 63 of the two equal-length longer-radius arc structures with one section of shorter-radius arc and two ends thereof being in smooth bending connection is characterized in that one section of shorter-radius arc is one section A of shorter-radius arc, and two sections of equal-length longer-radius arc are two sections of equal-length B of longer-radius arc;
the lower groove butterfly valve body with the longitudinal vertical section being of a curve structure is a lower groove butterfly valve body 73 with a section of a shorter radius circular arc line and two sections of equal length longer radius circular arc lines with two ends being in smooth bending connection; the lower groove butterfly valve body 73 of the two equal-length longer-radius arc structures with one section of shorter-radius arc and two ends in smooth bending connection is characterized in that one section of shorter-radius arc is one section of C shorter-radius arc, and two sections of equal-length longer-radius arc are two sections of equal-length D longer-radius arc;
The angle of the center angle formed by two end points of a section A shorter radius arc 631 of the groove butterfly valve body on the structure of two equal length longer radius arc lines with the two ends smoothly connected with the one section A shorter radius arc line is 110-120 degrees, the virtual connecting straight line formed by two end points of the section A shorter radius arc 631 is parallel to the virtual connecting straight line formed by the other two end points of the two section A longer radius arc 632 with the two ends smoothly bent and connected with the one section A shorter radius arc line, and the length of the virtual connecting straight line formed by the other two end points of the two section A longer radius arc 632 of the groove butterfly valve body on the structure of the two section A longer radius arc lines with the two ends smoothly connected with the one section A shorter radius arc 631 is 4-8mm larger than the diameter of the one section A shorter radius arc 631;
the angle of the center angle formed by two end points of a C shorter radius arc 731 and the center of the center angle is 110-120 degrees, the virtual connecting straight line formed by two end points of the C shorter radius arc 731 is parallel to the virtual connecting straight line formed by the other two end points of two equal length D longer radius arc 732 which are respectively and smoothly connected at the two ends of the C shorter radius arc 731, and the length of the virtual connecting straight line formed by the other two end points of the two equal length D longer radius arc 732 of the groove butterfly valve body is 4-8mm greater than the diameter of one B shorter radius arc 731 under the structure of the two equal length longer radius arc which are respectively and smoothly connected at the two ends of the C shorter radius arc;
The lower bottom surface of the integrated upper lug plate 8 of the two sections of the upper groove butterfly valve body with the equal-length longer-radius circular arc line structure, which is formed by smoothly connecting the two ends of the upper groove butterfly valve body with the shorter-radius circular arc line, is an inclined surface, the vertical section is a semi-elliptical line structure, the lower bottom surface of the integrated upper lug plate 8 of the two ends of the upper groove butterfly valve body is an inclined surface, and the included angle between the lower bottom surface of the inclined surface and the horizontal plane is 1-3 degrees;
the upper top surface of the integrated lower lug plate 9 of the two sections of equal-length longer-radius arc line structures, which are smoothly connected with the two ends of the shorter-radius arc line, is an inclined surface, the vertical section is a semi-elliptical line structure, and the D included angle between the upper top surface of the inclined surface and the horizontal surface of the integrated lower lug plate 9 at the two ends of the lower groove butterfly valve body is 1-3 degrees.
From the above description, it is apparent to those skilled in the art that various changes and modifications can be made without departing from the scope of the technical spirit of the invention. The present invention is not limited to the prior art.

Claims (5)

1. The utility model provides a pipe strap formula slot butterfly valve, includes slot butterfly valve body, butterfly plate, handle, sealing rubber ring, goes up pivot, lower pivot, characterized by: the groove butterfly valve body comprises an upper groove butterfly valve body and a lower groove butterfly valve body, wherein two ends of the upper groove butterfly valve body are respectively integrally formed with 2 upper lug plates connected with each other, two ends of the lower groove butterfly valve body are respectively integrally formed with 2 lower lug plates connected with each other, the longitudinal vertical cross section of the upper groove butterfly valve body is of a curve structure, the longitudinal vertical cross section of the lower groove butterfly valve body is of a curve structure, and the lower groove butterfly valve body with the longitudinal vertical cross section of the curve structure corresponds to the upper groove butterfly valve body with the longitudinal vertical cross section of the curve structure; the upper groove butterfly valve body with the vertical cross section in a curve structure uses bolt holes formed in an upper lug plate integrally formed at two ends of the upper groove butterfly valve body, two sets of bolts and nuts, and the bolt holes formed in a lower lug plate integrally formed at two ends of the lower groove butterfly valve body with the vertical cross section in a curve structure are fixedly connected with the lower groove butterfly valve body with the vertical cross section in a curve structure;
The two sides of the inner surface of the groove butterfly valve body on the curve structure of the longitudinal vertical section are respectively provided with a part clamped in the groove of the groove pipe fitting, and the curve of the longitudinal vertical section of the part clamped in the groove of the groove pipe fitting is consistent with the curve of the longitudinal vertical section of the groove butterfly valve body on the curve structure of the longitudinal vertical section; the middle part of the butterfly valve body is provided with a concave sealing ring bin part, and an upper semi-annular positioning bulge is arranged at the middle part of the inner wall of the concave sealing ring bin part, wherein the upper groove butterfly valve body is of a curve structure in the longitudinal vertical section;
the two sides of the inner surface of the groove butterfly valve body under the curve structure of the longitudinal vertical section are respectively provided with a part clamped in the groove of the groove pipe fitting, and the curve of the longitudinal vertical section of the part clamped in the groove of the groove pipe fitting is consistent with the curve of the longitudinal vertical section of the groove butterfly valve body under the curve structure of the longitudinal vertical section; the middle part of the butterfly valve body is provided with a concave sealing ring bin part, and the middle part of the inner wall of the concave sealing ring bin part is provided with a lower semi-annular positioning bulge; the inner concave sealing ring bin part arranged in the middle of the inner surface of the upper groove butterfly valve body with the vertical cross section in a curve structure and the inner concave sealing ring bin part arranged in the middle of the inner surface of the lower groove butterfly valve body with the vertical cross section in a curve structure form a sealing rubber ring bin, and the sealing rubber ring bin is matched with the sealing rubber ring; an upper semi-annular positioning bulge arranged at the middle part of the inner wall of the concave sealing ring bin part of the upper groove butterfly valve body with the longitudinal vertical cross section in a curve structure and a lower semi-annular positioning bulge arranged at the middle part of the inner wall of the concave sealing ring bin part of the lower groove butterfly valve body with the longitudinal vertical cross section in a curve structure form an annular positioning bulge loop;
The end surfaces of the left end and the right end of the lower part of the upper semi-annular positioning bulge are respectively integrated with the two ends of the upper groove butterfly valve body with a vertical cross section in a curve structure, and the lower bottom surfaces of the left and the right upper lug plates are designed in a dislocation structure; the left end face and the right end face of the upper part of the lower semi-annular positioning bulge are respectively integrated with the two ends of the lower groove butterfly valve body with a vertical cross section in a curve structure, and the upper top surfaces of the left and the right lower lug plates are designed in a dislocation structure; the left end part of the lower part of the upper semi-annular positioning bulge extends in a staggered manner to extend out of the lower bottom surface of the left upper lug plate of the upper groove butterfly valve body with a longitudinal vertical section in a curve structure, and the distance between the end surface of the left end part of the lower part of the upper semi-annular positioning bulge and the position of the transverse middle part of the lower bottom surface of the left upper lug plate of the upper groove butterfly valve body with the longitudinal vertical section in the curve structure is 5-15 mm; the right end part of the lower part of the upper semi-annular positioning bulge is staggered, contracted and retracted to the lower bottom surface of the right upper lug plate of the upper groove butterfly valve body with a curve structure in the longitudinal vertical section, and the distance between the right end surface of the lower part of the upper semi-annular positioning bulge and the position of the transverse middle part of the lower bottom surface of the right upper lug plate of the upper groove butterfly valve body with a curve structure in the longitudinal vertical section is 5-15 mm; the left end part of the upper part of the lower semi-annular positioning bulge is staggered, contracted and retracted to the upper top surface of the left lower lug plate of the lower groove butterfly valve body with a vertical cross section in a curve structure, and the distance between the end surface of the left end part of the upper part of the lower semi-annular positioning bulge and the transverse middle position of the upper top surface of the left lower lug plate of the lower groove butterfly valve body with a vertical cross section in a curve structure is 5-15 mm; the right end part of the upper part of the lower semi-annular positioning bulge extends in a staggered manner to extend out of the upper top surface of the right lower lug plate of the lower groove butterfly valve body with a longitudinal vertical section in a curve structure, and the distance between the end surface of the right end part of the upper part of the lower semi-annular positioning bulge and the position of the transverse middle part of the upper top surface of the right lower lug plate of the lower groove butterfly valve body with a longitudinal vertical section in a curve structure is 5-15 mm;
The sealing rubber ring comprises an upper groove butterfly valve body inner surface concave sealing ring bin part with a curve structure of the outer surface of the sealing rubber ring and a lower groove butterfly valve body inner surface concave sealing ring bin part with a curve structure of the longitudinal vertical section, wherein a sealing rubber ring bin following type ring is arranged on an annular central line of the inner surface of the sealing rubber ring along with the sealing rubber ring bin, an inner concave groove matched with an annular positioning convex ring is arranged on the annular central line of the outer surface of the sealing rubber ring and the annular convex ring of the inner surface of the sealing rubber ring, an upper round table-shaped boss and a lower round table-shaped boss are respectively arranged on the upper part and the lower part of the inner concave groove matched with the annular positioning convex ring of the sealing rubber ring, sealing lips reversely folded towards the inner surface of the sealing rubber ring are respectively arranged on two sides of the sealing rubber ring, and the wedge-shaped sealing lips reversely folded towards the inner surface of the sealing rubber ring are not contacted with the annular convex ring arranged on the annular central line of the inner surface of the sealing rubber ring; an upper rotary shaft hole and a lower rotary shaft hole are respectively arranged in the vertical central line direction of the upper round table-shaped boss and the lower inverted round table-shaped boss which are respectively arranged in the concave grooves matched with the annular positioning convex ring, and an upper round table-shaped through hole and a lower inverted round table-shaped through hole which are respectively matched with the round table-shaped boss and the lower inverted round table-shaped boss on the sealing rubber ring are respectively arranged in the vertical central line direction of the upper part and the lower part of the annular positioning convex ring;
The inner surface of the annular positioning bulge ring is designed to be in a spherical structure, the inner surface of the annular positioning bulge ring on the annular central line of the inner surface of the seal rubber ring along with the seal rubber ring bin is designed to be in a spherical structure, and the butterfly plate is designed to be in a spherical structure.
2. The pipe clamp type groove butterfly valve of claim 1, wherein: the specification of the pipe clamp type groove butterfly valve is DN25-300, and the outer diameter of the sealing rubber ring is 2-6mm larger than the diameter of the sealing rubber ring bin; in a normal state, the distance between the lower bottom surfaces of the two end 2 upper lug plates of the upper groove butterfly valve body with the vertical cross section in a curve structure and the upper top surfaces of the two end 2 lower lug plates of the lower groove butterfly valve body with the vertical cross section in a curve structure is 10-20mm.
3. The pipe clamp type groove butterfly valve of claim 1, wherein: the upper groove butterfly valve body with the longitudinal vertical section being of a curve structure is one of an upper groove butterfly valve body with the longitudinal vertical section being of a semicircular arc structure, an upper groove butterfly valve body with the longitudinal vertical section being of a semicircular elliptical line structure or an upper groove butterfly valve body with a section of a shorter-radius arc line and two ends of the upper groove butterfly valve body being in smooth bending connection with each other and of two sections of equal-length longer-radius arc line structures; the lower groove butterfly valve body with the longitudinal vertical section being of a curve structure is one of a lower groove butterfly valve body with the longitudinal vertical section being of a semicircular arc structure, a lower groove butterfly valve body with the longitudinal vertical section being of a semicircular elliptical line structure or a lower groove butterfly valve body with a section of a shorter-radius arc line and two ends of the lower groove butterfly valve body being of two equal-length longer-radius arc line structures which are connected in a smooth bending mode.
4. A pipe clamp type groove butterfly valve according to claim 3, wherein: the semi-elliptic long axis of the semi-elliptic line structure upper groove butterfly valve body with the longitudinal vertical section is 1-5 mm larger than the short axis b of the semi-elliptic line structure upper groove butterfly valve body, the lower bottom surface of the integrated upper lug plate arranged at the two ends of the semi-elliptic line structure upper groove butterfly valve body with the longitudinal vertical section is an inclined surface, and the included angle A between the lower bottom surface of the integrated upper lug plate arranged at the two ends of the semi-elliptic line structure upper groove butterfly valve body and the horizontal surface is 1-3 degrees;
the semi-elliptic long axis of the semi-elliptic line structure lower groove butterfly valve body with the longitudinal vertical section is 1-5 mm larger than the short axis B of the semi-elliptic line structure, the upper top surfaces of the integrally formed lower lug plates arranged at the two ends of the semi-elliptic line structure lower groove butterfly valve body with the longitudinal vertical section are inclined surfaces, and the included angle B between the upper top surfaces of the inclined surfaces and the horizontal plane is 1-3 degrees.
5. A pipe clamp type groove butterfly valve according to claim 3, wherein: the angle between the two end points of a section of shorter radius arc line and the center angle formed by the circle centers of the two end points of the section of shorter radius arc line and the center angle formed by the two end points of the groove butterfly valve body on the two sections of equal length longer radius arc line structures with the two ends smoothly connected with the section of shorter radius arc line is 110-120 degrees, the virtual connecting straight line formed by the two end points of the section of shorter radius arc line is parallel to the virtual connecting straight line formed by the other two end points of the two sections of equal length longer radius arc line with the two ends smoothly bent and connected with the two ends of the section of shorter radius arc line, and the length of the virtual connecting straight line formed by the other two end points of the two sections of equal length longer radius arc line structures with the two sections of shorter radius arc line is 4-8mm greater than the length of the other two sections of equal length longer radius arc line structures; the angle between the two end points of the one section of shorter radius arc line and the center angle formed by the circle centers of the two end points of the one section of shorter radius arc line and the center angle is 110-120 degrees, the virtual connecting straight line formed by the two end points of the one section of shorter radius arc line is parallel to the virtual connecting straight line formed by the other two end points of the two sections of equal length longer radius arc line, the two ends of which are respectively and smoothly connected, of the one section of shorter radius arc line, and the virtual connecting straight line formed by the other two end points of the two sections of equal length longer radius arc line of the groove butterfly valve body under the two sections of equal length longer radius arc line structures, the two ends of which are respectively and smoothly connected, of the one section of shorter radius arc line is longer than 4-8mm;
The lower bottom surface of the integrated upper lug plate of the upper groove butterfly valve body with the structure of two sections of equal-length longer-radius circular arc lines, which are smoothly connected with the two ends of the shorter-radius circular arc lines, is an inclined surface, the vertical section is a semi-elliptic line structure, the lower bottom surface of the integrated upper lug plate of the upper groove butterfly valve body with the two ends of the upper groove butterfly valve body is an inclined surface, and the included angle A between the lower bottom surface and the horizontal plane is 1-3 degrees; the upper top surface of the integrated lower lug plate of the two sections of equal-length longer-radius arc line structures, which are smoothly connected with the two ends of the shorter-radius arc line, is an inclined surface, the vertical section is a semi-elliptical line structure, the two ends of the integrated lower lug plate of the lower groove butterfly valve body are inclined surfaces, and the included angle B between the upper top surface of the inclined surface and the horizontal plane is 1-3 degrees.
CN202210403628.0A 2022-04-18 2022-04-18 Pipe clamp type groove butterfly valve Active CN114719028B (en)

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