CN213809321U

CN213809321U - Tooth group type flexible clamp pipe joint

Info

Publication number: CN213809321U
Application number: CN202023030799.9U
Authority: CN
Inventors: 周井刚; 周二光; 周井凤
Original assignee: Lianshi Dongfang Pipe Fittings Co ltd
Current assignee: Lianshi Dongfang Pipe Fittings Co ltd
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2021-07-27
Anticipated expiration: 2030-12-16

Abstract

The utility model discloses a tooth group type flexible clamp pipe joint, which comprises two connected semi-ring pipe joints and two sealing rings arranged at the inner sides of the semi-ring pipe joints, wherein tooth group ripples are arranged at the end parts of the sealing rings and the inner walls of the semi-ring pipe joints, the tooth group ripples on the inner walls of the semi-ring pipe joints are mutually clamped with the tooth group ripples on the surfaces of the sealing rings, the two ends of the semi-ring pipe joints are respectively provided with an integrated connecting end block, and a pre-connecting device is arranged between the two connecting end blocks; set up the tooth group ripple through the inner wall at the tip of sealing washer and semi-ring coupling, can make holistic sealing performance obtain promoting, solved the not good problem of leakproofness in the former device, and through setting up the connecting device in advance that comprises connecting bolt, rectangle pinhole, flexible groove, spring and the flexible fixture block of right trapezoid for two semi-ring couplings are before carrying out bolted connection, and the accessible is connecting device card in advance together, thereby brings the convenience for follow-up bolted connection operation.

Description

Tooth group type flexible clamp pipe joint

Technical Field

The utility model belongs to the technical field of flexible clamp pipe joint, concretely relates to flexible clamp pipe joint of tooth group formula.

Background

The flexible hoop pipe joint is a pipeline connecting device, mainly comprising two semi-ring pipe joints and two sealing rings, and achieves the purpose of sealing by means of elastic deformation of the sealing rings during low pressure; when the pressure is increased, the medium acts on the sealing ring to play a self-sealing role.

Present flexible clamp coupling is when using, because the both ends mouth of sealing washer and the contact surface of semi-ring coupling are comparatively smooth, lead to holistic leakproofness not good, there is certain drawback, two semi-ring couplings that have simultaneously are at the in-process of connecting through the bolt, because there is not any connecting means between two semi-ring couplings, lead to two semi-ring couplings to take place very easily when connecting and drop and offset, influence holistic installation effectiveness, do not have good anticreep measure behind two semi-ring couplings connection simultaneously, connection stability is not good, for this the utility model provides a flexible clamp coupling of tooth group formula.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a flexible clamp coupling of tooth group formula, with the current flexible clamp coupling that proposes in solving above-mentioned background art when using, because the both ends mouth of sealing washer and the contact surface of semi-ring coupling are comparatively smooth, lead to holistic leakproofness not good, there is certain drawback, two semi-ring couplings that have now simultaneously are at the in-process that connects through the bolt, because there is not any connecting means between two semi-ring couplings, lead to two semi-ring couplings to take place very easily when connecting and drop and the skew, influence holistic installation effectiveness, there is not good anticreep measure after two semi-ring couplings are connected simultaneously, the not good problem of connection stability.

In order to achieve the above object, the utility model provides a following technical scheme: the tooth group type flexible hoop pipe joint comprises two semi-ring pipe joints which are connected together and two sealing rings arranged on the inner sides of the semi-ring pipe joints, wherein tooth group ripples are arranged on the end parts of the sealing rings and the inner walls of the semi-ring pipe joints, the tooth group ripples on the inner walls of the semi-ring pipe joints are mutually clamped with the tooth group ripples on the surfaces of the sealing rings, integrated connecting end blocks are arranged at the two ends of the semi-ring pipe joints, a pre-connecting device is arranged between the two connecting end blocks and comprises a connecting bolt, a rectangular pin hole corresponding to the connecting bolt is formed in the center of each connecting end block in a penetrating mode, the two ends of the connecting bolt respectively penetrate through the outer sides of the two connecting end blocks, telescopic grooves are formed in the two ends of the connecting bolt, a spring and a right-trapezoid telescopic fixture block are arranged on the inner sides of the telescopic grooves, and the top ends of the right-trapezoid telescopic fixture block penetrate through the outer sides of the connecting bolt, and the top end of the right trapezoid telescopic clamping block is clamped on the outer side surface of the connecting end block.

Preferably, a connecting mechanism is arranged between the two sealing rings and comprises a plurality of connecting inner strips, strip-shaped inner grooves corresponding to the connecting inner strips are formed in the inner walls of the bottom ends of the sealing rings, and the two ends of the connecting inner strips are clamped in the strip-shaped inner grooves in the inner walls of the two sealing rings respectively.

Preferably, the top surface of the connecting inner strip is symmetrically provided with two right-angled triangular lugs, the inner wall of the strip-shaped inner groove is provided with rectangular clamping grooves corresponding to the right-angled triangular lugs, and the right-angled triangular lugs are clamped in the rectangular clamping grooves at corresponding positions.

Preferably, a T-shaped clamping block is arranged on one side, opposite to the right-angled triangle bump, of the top surface of the connecting inner groove, a T-shaped clamping groove corresponding to the T-shaped clamping block is formed in the inner wall of the strip-shaped inner groove, and the T-shaped clamping block is clamped in the T-shaped clamping groove in the corresponding position.

Preferably, the sealing ring and the connecting inner strip are elastic members, and the connecting inner strip, the T-shaped clamping block and the right-angled triangular lug are of an integrated structure.

Preferably, the top end of the telescopic groove is provided with a rectangular ejection hole corresponding to the size of the top end of the right trapezoid telescopic clamping block, and the rectangular ejection hole is communicated with the outer side surface of the connecting bolt.

Preferably, two bolt holes are symmetrically formed in the surface of each connecting end block relative to two sides of each rectangular pin hole, and two adjacent connecting end blocks are fixed through bolts.

Compared with the prior art, the beneficial effects of the utility model are that:

1. set up the tooth group ripple through the inner wall at the tip of sealing washer and semi-ring coupling, can make holistic sealing performance obtain promoting, the not good problem of leakproofness in the former device has been solved, and through setting up the pre-connecting device who comprises connecting bolt, the rectangle pinhole, flexible groove, spring and the flexible fixture block of right trapezoid, make two semi-ring couplings before carrying out bolted connection, the accessible is in advance the connecting device card together, thereby it is convenient to bring for follow-up bolted connection operation, the problem of two semi-ring couplings take place to drop and offset when connecting very easily in the former device has been solved, pre-connecting device can also play good anticreep effect simultaneously in follow-up use, improve holistic connection stability.

2. Through setting up the coupling mechanism who comprises connecting interior strip, bar inside groove, right angled triangle lug, rectangle draw-in groove, T shape fixture block and T shape draw-in groove for two sealing washers can link together, thereby prevent that two sealing washers from at follow-up emergence offset and drop, the holistic connection stability of further improvement.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a side cross-sectional view of the present invention;

FIG. 3 is an enlarged view of a portion of the area A in FIG. 2 according to the present invention;

FIG. 4 is a cross-sectional view of the connection pin and connection end block of the present invention;

FIG. 5 is an enlarged view of a portion of the area B in FIG. 2 according to the present invention;

in the figure: 1. a semi-ring pipe joint; 2. connecting a bolt; 3. a right trapezoid telescopic fixture block; 4. connecting the end block; 5. a seal ring; 6. a rectangular pin hole; 7. connecting the inner strip; 8. corrugation of the tooth group; 9. a telescopic groove; 10. A spring; 11. a T-shaped fixture block; 12. a T-shaped clamping groove; 13. a right-angled triangular bump; 14. a rectangular clamping groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1 to 5, the present invention provides a technical solution: the tooth group type flexible clamp pipe joint comprises two semi-ring pipe joints 1 connected together and two sealing rings 5 arranged on the inner sides of the semi-ring pipe joints 1, wherein tooth group corrugations 8 are arranged at the end parts of the sealing rings 5 and the inner walls of the semi-ring pipe joints 1, the tooth group corrugations 8 on the inner walls of the semi-ring pipe joints 1 are mutually clamped with the tooth group corrugations 8 on the surfaces of the sealing rings 5, the whole connection sealing performance can be improved, integral connecting end blocks 4 are arranged at the two ends of the semi-ring pipe joints 1, a pre-connecting device is arranged between the two connecting end blocks 4 and comprises a connecting bolt 2, a rectangular pin hole 6 corresponding to the connecting bolt 2 is arranged at the center of the connecting end block 4 in a penetrating mode, the two ends of the connecting bolt 2 are respectively arranged on the outer sides of the two connecting end blocks 4 in a penetrating mode, telescopic grooves 9 are arranged inside the two ends of the connecting bolt 2, and a spring 10 and a right-angle trapezoid telescopic clamping block 3 are arranged on the inner sides of the telescopic grooves 9, the top of the telescopic right-angled trapezoid fixture block 3 runs through to the outside of the connecting pin 2, and the top of the telescopic right-angled trapezoid fixture block 3 is clamped on the outer surface of the connecting end block 4, so that the two semi-ring pipe joints 1 can be clamped together through the pre-connecting device before being bolted, and convenience is brought to subsequent bolting operation.

In the embodiment, preferably, a connecting mechanism is arranged between the two sealing rings 5, the connecting mechanism comprises a plurality of connecting inner strips 7, the inner wall of the bottom end of each sealing ring 5 is provided with a strip-shaped inner groove corresponding to the connecting inner strip 7, the two ends of each connecting inner strip 7 are respectively clamped in the strip-shaped inner grooves on the inner walls of the two sealing rings 5, the top surface of each connecting inner strip 7 is symmetrically provided with two right-angled triangular projections 13, the inner wall of each strip-shaped inner groove is provided with a rectangular clamping groove 14 corresponding to the right-angled triangular projection 13, the right-angled triangular projection 13 is clamped in the corresponding rectangular clamping groove 14, one side of the top surface of each connecting inner strip 7, which is opposite to the right-angled triangular projection 13, the inner wall of each strip-shaped inner groove is provided with a T-shaped clamping groove 12 corresponding to the T-shaped clamping block 11, the T-shaped clamping block 11 is clamped in the corresponding T-shaped clamping groove 12, and the sealing rings 5 and the connecting inner strips 7 are elastic members, the elastic material is specifically fluororubber, and the connecting inner strip 7, the T-shaped fixture block 11 and the right-angled triangular projection 13 are of an integrated structure, so that the two sealing rings 5 can be connected together.

In this embodiment, preferably, a rectangular ejection hole corresponding to the size of the top end of the right trapezoid telescopic fixture block 3 is formed at the top end of the telescopic slot 9, and the rectangular ejection hole is communicated with the outer side surface of the connecting pin 2, so that the top end of the right trapezoid telescopic fixture block 3 can be ejected smoothly.

In this embodiment, preferably, two bolt holes are symmetrically formed in the surface of the connecting end block 4 relative to the two sides of the rectangular pin hole 6, and two adjacent connecting end blocks 4 are fixed by bolts, so that the two connecting end blocks 4 can be subsequently fastened by bolts.

The utility model discloses a theory of operation and use flow: when the device is used, firstly, two sealing rings 5 are sleeved at the joint of an external pipeline, and the two sealing rings 5 are connected together through a connecting mechanism, when in connection, only two ends of a connecting inner strip 7 are respectively pressed into strip-shaped inner grooves at the inner sides of the two sealing rings 5, so that a T-shaped clamping block 11 is clamped into the inner side of a T-shaped clamping groove 12, and a right-angled triangular lug 13 is clamped into the inner side of a rectangular clamping groove 14, then the two sealing rings 5 can be connected together through the connecting mechanism, then two semi-ring pipe joints 1 are sleeved at the joint of the external pipeline in the same way, the sealing rings 5 are positioned at the inner sides of the semi-ring pipe joints 1, connecting end blocks 4 at the end parts of the semi-ring pipe joints 1 are attached, tooth group corrugations 8 on the surfaces of the sealing rings 5 and tooth group corrugations 8 on the inner walls of the semi-ring pipes 1 can be mutually clamped together, and then the connecting bolt 2 is forcibly inserted into a rectangular pin hole 6, so that the connecting pin 2 can pass through the two connecting end blocks 4, the two ends of the connecting pin 2 can respectively penetrate to the outer sides of the two connecting end blocks 4, the top ends of the right-angled trapezoid telescopic clamping blocks 3 are clamped on the outer sides of the connecting end blocks 4 under the pushing of the springs 10, namely, the two semi-ring pipe joints 1 can be clamped together in advance through the connecting pin 2 and the right-angled trapezoid telescopic clamping blocks 3, so that the two semi-ring pipe joints 1 cannot fall off and have position deviation in the subsequent connecting process, on the basis, the connecting end blocks 4 at the ends of the two semi-ring pipe joints 1 are fixed through bolts and nuts, the connection of the two semi-ring pipe joints 1 and the assembly of the whole device can be completed, at the moment, the tooth group corrugations 8 between the semi-ring pipe joints 1 and the sealing rings 5 can be tightly attached to each other, so that the sealing performance of the connection is improved, and under the action of the connecting pin 2 and the right-angled trapezoid telescopic clamping blocks 3, because the top of the right trapezoid telescopic fixture block 3 is always clamped outside the connecting end block 4, the right trapezoid telescopic fixture block 3 can also play a good anti-falling role in the connecting end block 4 in the subsequent use process, the overall connection stability is improved, and when two semi-ring pipe joints 1 need to be disassembled subsequently, the top of the right trapezoid telescopic fixture block 3 only needs to be pressed into the inner side of the telescopic groove 9, the connecting bolt 2 is pulled out from between the two connecting end blocks 4, and the two semi-ring pipe joints 1 can be normally disassembled.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Tooth group formula flexible clamp pipe joint, including two semi-ring pipe joint (1) and two sealing washer (5) of setting in semi-ring pipe joint (1) inboard that link together, its characterized in that: the end part of the sealing ring (5) and the inner wall of the semi-ring pipe joint (1) are provided with tooth group corrugations (8), the tooth group corrugations (8) on the inner wall of the semi-ring pipe joint (1) are mutually clamped with the tooth group corrugations (8) on the surface of the sealing ring (5), two ends of the semi-ring pipe joint (1) are respectively provided with an integrated connecting end block (4), a pre-connecting device is arranged between the two connecting end blocks (4) and comprises a connecting plug pin (2), the center of the connecting end block (4) is provided with a rectangular pin hole (6) corresponding to the connecting plug pin (2) in a penetrating way, two ends of the connecting plug pin (2) respectively penetrate to the outer sides of the two connecting end blocks (4), telescopic grooves (9) are respectively formed in the two ends of the connecting plug pin (2), and a spring (10) and a right-angle trapezoid telescopic clamping block (3) are arranged on the inner side of each telescopic groove (9), the top end of the right trapezoid telescopic clamping block (3) penetrates through the outer side of the connecting bolt (2), and the top end of the right trapezoid telescopic clamping block (3) is clamped on the surface of the outer side of the connecting end block (4).

2. The tooth-set flexible hose clamp connection of claim 1, wherein: two be equipped with coupling mechanism between sealing washer (5), coupling mechanism includes a plurality of connection interior strip (7), the bottom inner wall of sealing washer (5) is seted up and is connected the corresponding bar inside groove of interior strip (7), the both ends of connecting interior strip (7) are blocked respectively in the bar inside groove of two sealing washer (5) inner walls.

3. The tooth-set flexible hose clamp connection of claim 2, wherein: the top surface of the connecting inner strip (7) is symmetrically provided with two right-angled triangular lugs (13), the inner wall of the strip-shaped inner groove is provided with rectangular clamping grooves (14) corresponding to the right-angled triangular lugs (13), and the right-angled triangular lugs (13) are clamped in the rectangular clamping grooves (14) at corresponding positions.

4. The tooth-set flexible hose clamp connection of claim 3, wherein: a T-shaped clamping block (11) is arranged on one side, opposite to the right-angled triangle bump (13), of the top surface of the connecting inner strip (7), a T-shaped clamping groove (12) corresponding to the T-shaped clamping block (11) is formed in the inner wall of the strip-shaped inner groove, and the T-shaped clamping block (11) is clamped in the T-shaped clamping groove (12) in the corresponding position.

5. The tooth-set flexible hose clamp connection of claim 4, wherein: the sealing ring (5) and the connecting inner strip (7) are elastic material components, and the connecting inner strip (7), the T-shaped clamping block (11) and the right-angled triangle bump (13) are of an integrated structure.

6. The tooth-set flexible hose clamp connection of claim 1, wherein: the top end of the telescopic groove (9) is provided with a rectangular ejection hole corresponding to the size of the top end of the right trapezoid telescopic clamping block (3), and the rectangular ejection hole is communicated with the outer side surface of the connecting bolt (2).

7. The tooth-set flexible hose clamp connection of claim 1, wherein: two bolt holes are symmetrically formed in the surface of the connecting end block (4) relative to two sides of the rectangular pin hole (6), and two adjacent connecting end blocks (4) are fixed through bolts.