CN111237279A - Valve element assembly, hydraulic control one-way valve and valve sleeve - Google Patents
Valve element assembly, hydraulic control one-way valve and valve sleeve Download PDFInfo
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- CN111237279A CN111237279A CN202010215092.0A CN202010215092A CN111237279A CN 111237279 A CN111237279 A CN 111237279A CN 202010215092 A CN202010215092 A CN 202010215092A CN 111237279 A CN111237279 A CN 111237279A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/021—Valves for interconnecting the fluid chambers of an actuator
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- 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
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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- 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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
- F16K11/044—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with movable valve members positioned between valve seats
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Sliding Valves (AREA)
Abstract
The application discloses a valve core component, a hydraulic one-way valve and a valve sleeve, which comprise a valve sleeve, a piston rod and a first spring, the valve sleeve integrated into one piece comprises a pipe body, the pipe body is divided into a front section, a middle section and a rear section, the plug screw is installed on the front section, a high-pressure port and a working port are formed in the middle section, the first valve core is installed between a first protruding portion and the front section, the second valve core is installed in the first valve core, two ends of the first spring are abutted against the plug screw and the second valve core, a partition plate is arranged on the inner wall between the rear section and the working port, a through hole is formed in the partition plate, the piston rod comprises a piston rod base and a movable rod, the movable rod is installed on the piston rod base, the piston rod base is installed in the rear section, the movable rod penetrates through holes to drive the second valve core and the first valve core to move, the second spring sleeve is arranged on the movable rod, and two ends of the second spring sleeve are. By the aid of the method, the number of parts can be reduced, and assembling procedures are reduced.
Description
Technical Field
The application relates to the technical field of hydraulic valves, in particular to a one-way valve core assembly and a hydraulic valve.
Background
The hydraulic valve is one of important control components of a hydraulic system, and a valve core assembly of the hydraulic valve is of an integral plug-in type structure and a bulk type structure. In the field of hydraulic valves for water media (high water-based media and coal mine water media), the bulk valve core structure is less in use under the working condition due to the inconvenience of structural assembly and maintenance, and the valve core assembly of the plug-in type hydraulic valve solves the problem of difficulty in underground maintenance and disassembly of the bulk hydraulic valve core structure, so that the bulk hydraulic valve core assembly is widely used under the working condition. In the existing plug-in type hydraulic valve, a valve body of the hydraulic valve is in sealing fit with an action valve core through a valve sleeve structure, the conventional valve sleeve structure is composed of a plurality of parts, the processing precision requirement of the joint fit position of each part is high, the processing is time-consuming and labor-consuming, the cost is high, and the integral coaxiality of the valve core assembly is low and unstable after the assembly due to accumulated errors, so that when the valve core assembly is installed into the valve body, the problems that the valve core assembly is adhered to the valve body, the valve sleeve structure is loosened, the valve core is disengaged and.
Disclosure of Invention
In view of the above, the present application provides a valve core assembly, a hydraulic control check valve and a valve sleeve to solve the above technical problems.
The application provides a case subassembly, it includes: the valve sleeve is integrally formed and comprises a pipe body, the pipe body is divided into a front section, a middle section and a rear section which are sequentially connected along the length direction, the screw plug is installed in the front section, a first protruding portion is arranged on the circumferential direction of the inner pipe wall of the middle section, a high-pressure port and a working port are respectively arranged on two sides of the first protruding portion, the first valve core is installed between the first protruding portion and the front section and is abutted against the first protruding portion, an installation hole penetrating through the length direction of the first valve core is formed in the first valve core, the second valve core is installed in the installation hole, two ends of the first spring are abutted against the screw plug and the second valve core, a partition plate is arranged on the inner pipe wall between the rear section and the working port, a through hole is formed in the partition plate, the piston rod comprises a piston rod base and a movable rod, the movable rod is installed on the piston rod base, the piston rod base is installed in the rear section, the movable rod penetrates through the through hole to drive the second valve core and the first valve core to move, the second spring sleeve is arranged on the movable rod, and two ends of the second spring sleeve are respectively arranged on the spacing plate and the piston rod base.
Optionally, the method further comprises: the back nut and the screw plug are in threaded connection in the front section, the threaded connection direction of the back nut and the screw plug is opposite, the dismounting openings are formed in the back nut and the screw plug, and the two dismounting openings are coaxial.
Optionally, the screw plug includes a first cylinder and a second cylinder which are coaxially connected, the dismounting port is disposed on the first cylinder, the second cylinder is provided with an embedded groove, one end of the first spring is mounted in the embedded groove, the front section includes a first section and a second section which are connected, an inner thread is disposed on an inner pipe wall of the first section, an outer thread is disposed on the first cylinder, the inner thread is screwed with the outer thread, the second cylinder blocks the second section, and an inner diameter of the first section is larger than that of the second section and larger than that of the middle section.
Optionally, a second protruding portion is circumferentially arranged at one end, close to the second cylinder, of the first cylinder, a slot is circumferentially arranged on the inner wall of the first section, the second protruding portion is inserted into the slot, a first mounting groove is circumferentially arranged on the outer wall of the second cylinder, and a sealing ring is arranged in the first mounting groove.
Optionally, a first balance port is arranged at one end of the middle section close to the front section, and a second balance port is arranged on the pipe wall of the rear section.
Optionally, the rear section includes a left rear section and a right rear section that are connected in sequence, the left rear section is located between the partition board and the right rear section, the right rear section internal diameter is greater than the internal diameter of the left rear section and equal to the internal diameter of the middle section, one end of the second spring is embedded in the left rear section, and the second balance port is located on the right rear section.
Optionally, a boss part is arranged on the piston rod base, the movable rod is arranged on the boss part, the outer diameter of the boss part is smaller than that of the piston rod base and larger than that of the movable rod, the other end of the second spring is sleeved on the boss part, a second mounting groove is formed in the circumferential outer wall of the piston rod base, and a sealing ring is mounted in the second mounting groove.
Optionally, a third mounting groove for mounting a sealing ring is arranged on the outer pipe wall of the second section; a fourth mounting groove for mounting a sealing ring is formed in the outer pipe wall corresponding to the first boss, and the fourth mounting groove is located between the high-pressure port and the working port; a fifth mounting groove for mounting a sealing ring is formed in the outer pipe wall of the right rear section, and a second balance port is located between the fifth mounting groove and the working port; and a sixth mounting groove is formed in the hole wall of the through hole, and a sealing ring sleeved with the movable rod is arranged in the sixth mounting groove.
The application also provides a hydraulic control one-way valve, which comprises a valve body and the valve core assembly, wherein the valve core assembly is arranged in the valve body.
The application still provides a valve barrel, wherein, valve barrel integrated into one piece, it includes the body, anterior segment, middle section and the back end that connects gradually are divided into along length direction to the body, the anterior segment is used for installing the plug screw, be provided with in the circumference of the interior pipe wall in middle section and be used for the first bellying with first case butt, the both sides of first bellying are provided with high-pressure port and working opening respectively, the back end is used for installing the piston rod, be provided with the space bar on the interior pipe wall between back end and the working opening, be provided with the through-hole that is used for the cover to establish the piston rod on the space bar.
The valve core assembly, the hydraulic control one-way valve and the valve sleeve are integrally formed by arranging the valve sleeve, the piston rod arranged in the valve sleeve, the first spring, the second spring, the first valve core, the second valve core and the screw plug, the valve sleeve not only can reduce the number of parts and reduce assembly procedures, but also can ensure the coaxiality of all parts in the valve sleeve, reduce the level of the machining precision requirement of the inner pipe wall and the outer pipe wall of the valve sleeve, effectively reduce accumulated errors, solve the problem of clamping and damaging the valve core assembly in the assembling and disassembling process caused by insufficient coaxiality or machining precision of the valve core assembly, improve the qualification rate of the assembly of the valve core assembly, form a certain cone angle structure between the first valve core and the valve sleeve as well as between the second valve core and the first valve core, increase the sealing performance of the valve core assembly, and simultaneously reduce the material and heat treatment cost thereof and, The working hours and expenses required by split type assembly and the like reduce the overall cost of the valve body assembly.
Drawings
Fig. 1 is a schematic structural view of a valve core assembly of the present application.
Fig. 2 is a schematic structural view of the valve sleeve of the present application.
Fig. 3 is an enlarged view of B in fig. 2.
Fig. 4 is a schematic structural diagram of the pilot-operated check valve of the present application.
Fig. 5 is a hydraulic schematic of the pilot operated check valve of the present application.
Detailed Description
The technical solutions of the present application are described in detail below with reference to the accompanying drawings and specific embodiments. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Fig. 1 shows a schematic construction of a valve cartridge assembly of the present application, and fig. 2 shows a schematic construction of a valve sleeve of the present application. As shown in fig. 1-2, the present application provides a valve cartridge assembly comprising: the valve comprises a valve sleeve 1, a piston rod 2, a first spring 6, a first valve core 5, a second valve core 4, a second spring 3 and a screw plug 7.
The valve sleeve 1 is integrally formed and comprises a pipe body, wherein the pipe body is divided into a front section 110, a middle section 120 and a rear section 130 which are connected in sequence along the length direction.
The plug screw 7 is installed in the front section 110, a first protrusion 121 is circumferentially disposed on the inner pipe wall of the middle section 120, and a high pressure port P and a working port a are respectively disposed on two sides of the first protrusion 121.
In this embodiment, the quantity of high pressure port P and work mouth A is a plurality of, all along the circumference evenly distributed of body.
As shown in fig. 1, a smaller angle of an angle between the hole depth direction of the high pressure port P and the length direction of the valve housing 1 is an acute angle.
The depth direction of the working port a is perpendicular to the length direction of the valve sleeve 1. The control port K is located at an end of the piston rod 3 remote from the partition plate 140.
The first valve element 5 is mounted between the first boss 121 and the front stage 110, and abuts against the first boss 121.
As shown in fig. 3, a cross section of the first protrusion 121 perpendicular to the extending direction thereof is substantially a right trapezoid. The first valve core 5 is abutted against the oblique waist of the right trapezoid, so that surface contact is realized, and the sealing performance is improved.
The first valve core 5 is provided with a mounting hole penetrating through the length direction of the first valve core, and the length direction of the mounting hole is parallel to the length direction of the pipe body.
The second valve core 4 is arranged in the mounting hole, and two ends of the first spring 6 are abutted against the screw plug 7 and the second valve core 4.
An interval plate 140 is arranged on the inner pipe wall between the rear section 130 and the working opening a, and a through hole is arranged on the interval plate 140.
The piston rod 2 comprises a piston rod base 23 and a movable rod 21, the movable rod 21 is vertically installed on the piston rod base 23, and the piston rod base 23 is installed in the rear section 130.
The movable rod 21 penetrates through the through hole to drive the second valve core 4 and the first valve core 5 to move, the second spring sleeve 3 is arranged on the movable rod 21, and two ends of the second spring sleeve are respectively abutted to the spacing plate 140 and the piston rod base 23.
When the valve core assembly is assembled, the first valve core 5 is installed into the valve sleeve 1 from the left inlet of the valve sleeve 1, the second valve core 4 and the first spring 6 are sequentially installed into the first valve core 5, and the screw plug 7 is installed into the left inlet. After the screw plug 7 is installed, the axial limiting of the first valve core 5 and the first spring 6 can be ensured.
The second spring, the piston rod 2, is installed in the right inlet of the valve housing 2, and the movable rod 21 of the piston rod 2 is connected to the second spool 4 through the through-hole of the partition plate 140.
The valve core assembly provided by the application not only can reduce the number of parts and assembly procedures by arranging the valve sleeve and the piston rod, the first spring, the second spring, the first valve core, the second valve core and the screw plug which are arranged in the valve sleeve in an integrated manner, but also can ensure the coaxiality of all parts in the valve sleeve, reduce the grade required by the processing precision of the inner pipe wall and the outer pipe wall of the valve sleeve, effectively reduce accumulated errors, solve the problem of clamping and damage of the valve core assembly in the assembly and disassembly processes caused by insufficient coaxiality or processing precision of the valve core assembly, improve the qualification rate of the assembly of the valve core assembly, form a certain taper angle structure between the first valve core and the valve sleeve, between the second valve core and the first valve core, increase the sealing performance of the valve core assembly, simultaneously reduce the material and heat treatment cost thereof, reduce the process and working hour cost caused by the requirement of the, the overall cost of the valve body assembly is reduced.
Further, the case assembly further includes: back of the body female 8, back of the body female 8 and plug screw 7 all spiro union in anterior segment 110, and back of the body female 8 is opposite with plug screw 7's spiro union direction, all be provided with on back of the body female 8 and the plug screw 7 and dismantle the mouth, two are dismantled mouthful coaxial.
The back nut 8 can lock the plug screw 7, so that the plug screw 7 is completely fixed in the valve core assembly, and when the valve core assembly is assembled and disassembled, the plug screw is not screwed out, the internal parts of the valve core assembly are not exposed, and the sealing performance of the valve core assembly is not affected.
In this embodiment, the dismounting hole is an internal hexagonal hole, and the dismounting of the screw plug 7 or the back nut 8 is realized through an internal hexagonal wrench.
Preferably, the plug screw 7 comprises a first cylinder 71 and a second cylinder 72 coaxially connected, the removal opening being provided on the first cylinder 71.
An embedding groove is formed in the second cylinder 72, and one end of the first spring 6 is installed in the embedding groove.
The front section 110 includes a first section 111 and a second section 112 connected to each other, an inner wall of the first section 111 is provided with an inner thread, and the first cylinder 71 is provided with an outer thread, and the inner thread is screwed with the outer thread.
The second cylinder 72 encloses a second section 112, the second section 112 having an inner diameter smaller than the inner diameter of the first section 111 and larger than the inner diameter of the middle section 120.
Through setting up plug screw 7 into two sections cylinders, not only the fastness of multiplicable installation still can improve the leakproofness.
Further, a second convex portion 73 is provided on the first cylinder 71 in the circumferential direction near one end of the second cylinder 72.
The inner pipe wall of the first section 111 is circumferentially provided with a slot 113, and the second protruding portion 73 is inserted into the slot 113.
A first mounting groove 74 is formed in the circumferential outer wall of the second cylinder 72, and a sealing ring is arranged in the first mounting groove 74.
Through setting up second bellying 73 and pegging graft with slot 113, install the sealing washer in first mounting groove 74, can improve the fastness and the leakproofness of plug screw 7 installation.
Further, a first balance port P1 is disposed at an end of the middle section 120 close to the front section 110, and the first balance port P1 penetrates through the middle section pipe wall.
The pipe wall of the rear section 130 is provided with a second balance port A1. A second balance port A1 penetrates through the pipe wall of the rear section 130
The first balance port P1 is arranged to balance the pressure on the two sides of the first valve core 5, the second valve core 4 and the piston rod 2, so as to avoid the generation of cavities and ensure the axial movement of the first valve core 5, the second valve core 4 and the piston rod 2.
Preferably, as shown in fig. 2, the rear section 130 includes a left rear section 132 and a right rear section 133 connected in sequence, and the left rear section 132 is located between the partition plate 140 and the right rear section 133.
The inner diameter of the right rear section 133 is greater than that of the left rear section 132 and equal to that of the middle section 120, one end of the second spring 3 is embedded in the left rear section 132, and the second balancing opening a1 is located on the right rear section 133.
By providing the rear section 130 as the left rear section 132 and the right rear section 133, one end of the second spring 3 is embedded in the left rear section 132, and the axial movement of the second spring 3 can be ensured.
Further, the piston rod base 23 has a boss portion 22 thereon, and the boss portion 22 is a cylindrical body.
The movable rod 21 is provided on a boss portion 22, and the boss portion 22 has an outer diameter smaller than the piston rod base 23 and larger than the movable rod 21.
The other end of the second spring 3 is sleeved on the boss portion 22, a second mounting groove 24 is formed in the circumferential outer wall of the piston rod base 23, and a sealing ring is mounted in the second mounting groove 24.
The piston rod base 23 can be directly plugged in the right rear section 133 and fixed and sealed by the sealing ring in the second mounting groove 24, so that the mounting process can be further simplified, and the assembly efficiency can be improved.
Optionally, a third mounting groove 75 for installing a sealing ring is arranged on the outer pipe wall of the second section 112;
a fourth mounting groove 122 for mounting a sealing ring is arranged on the outer pipe wall corresponding to the first boss 121, and the fourth mounting groove 122 is positioned between the high pressure port P and the working port A;
a fifth mounting groove 131 for mounting a sealing ring is formed in the outer pipe wall of the right rear section 133, and a second balance port A1 is located between the fifth mounting groove 131 and the working port A;
a sixth installation groove 141 is formed in the wall of the through hole, and a seal ring for sleeving the movable rod 21 is installed in the sixth installation groove 141.
By providing the third, fourth, fifth and sixth mounting grooves 75, 122, 131 and 141, the sealing performance inside the valve core assembly and the sealing performance in assembly with the valve body can be improved.
The present application further provides a hydraulically controlled check valve, as shown in fig. 4, which includes a valve body 200 and the valve core assembly 100 as described above, wherein the valve core assembly 100 is installed in the valve body 200.
The maximum outer diameter of the front section 110 of the valve sleeve 1 is greater than the maximum outer diameter of the middle section 120, and the maximum outer diameter of the middle section 120 is greater than the maximum outer diameter of the rear section 130, so that the valve sleeve 1 is approximately conical, and the sealing performance of the valve core assembly 100 and the valve body 200 can be improved.
As shown in fig. 5, the pilot operated check valve provided by the present application includes: forward and reverse. Three bore holes: high pressure port P, working port A and control port K. Setting the external input pressure: system pressure P0System return pressure R0General operating mode P0＞20MPa，R0＜1MPa。
Two spring forces (fixed values) of the hydraulic control one-way valve: first spring force Z1Second spring force Z2. P chamber corresponds to system pressure P0The corresponding system control pressure K of the K cavity0。
In the normal position, the pressure of P cavity is P0K cavity pressure is R0. When the system pressure P is0The hydraulic force acting on the first valve core 4 and the second valve core 5 in the P cavity is smaller than the first spring force Z1When the fluid in the cavity A acts on the hydraulic pressure of the first valve core 4 and the second valve core 5, the first valve core 4 and the second valve core 5 can not be opened, and at the moment, the cavities are not communicated.
When the system pressure P is0Acting on the P chamber more than a first spring force Z1When the fluid in the cavity A acts on the hydraulic pressure of the first valve core 4 and the second valve core 5, the first valve core 4 and the second valve core 5 are opened, the cavity P is communicated with the cavity A, the cavity P supplies liquid to the cavity A, and the pressure of the cavity A gradually rises to the system pressure P0。
When the direction is reversed, the pressure of the P cavity is the return liquid R of the system0The pressure of the K cavity is the system pressure P0. When the system pressure P is0The hydraulic force acting on the piston rod 2 in the K cavity is smaller than the second spring force Z2And system return pressure R0When the fluid in the cavity P acts on the hydraulic pressure of the piston rod 2, the cavity A is not connected with the cavity PThe method is simple.
When the system pressure P is0The hydraulic force acting on the piston rod 2 in the K cavity is less than Z2Second spring force and system return pressure R0When the P cavity acts on the hydraulic pressure of the piston rod 2, the movable rod 21 pushes the first valve core 4 and the second valve core 5 to open, the P cavity is communicated with the A cavity, the A cavity supplies liquid to the P cavity, and the pressure of the A cavity is gradually reduced to the return pressure R of the system0。
The hydraulic control one-way valve provided by the application is characterized in that the valve sleeve, the piston rod arranged in the valve sleeve, the first spring, the second spring, the first valve core, the second valve core and the screw plug are arranged, the valve sleeve is integrally formed, the number of parts can be reduced, the assembly process is reduced, the coaxiality of all parts in the valve sleeve can be ensured, the grade required by the processing precision of the inner pipe wall and the outer pipe wall of the valve sleeve is reduced, the accumulated error is effectively reduced, the problem of clamping and damage of the valve core assembly in the assembling and disassembling process caused by insufficient coaxiality or processing precision of the valve core assembly is solved, the qualification rate of the assembling of the valve core assembly is improved, the first valve core, the valve sleeve, the second valve core and the first valve core form a certain taper angle structure, the sealing performance of the valve core assembly is improved, meanwhile, the material and heat treatment cost can be, the overall cost of the valve body assembly is reduced.
Based on the same inventive concept, the present application also provides a valve housing, wherein, as shown in fig. 2, the valve housing 1 is integrally formed, for example, by machining in one piece.
The valve housing 1 includes a tube body divided into a front section 110, a middle section 120, and a rear section 130 connected in sequence along a length direction.
The front section 110 is used for mounting a plug screw 7, a first protrusion 121 used for abutting against the first valve element 5 is arranged on the circumferential direction of the inner pipe wall of the middle section 120, and a high pressure port P and a working port a are respectively arranged on two sides of the first protrusion 121.
The rear section 130 is used for mounting the piston rod 2, a partition plate 140 is arranged on the inner pipe wall between the rear section 130 and the working opening a, and a through hole for sleeving the movable rod 21 of the piston rod 2 is arranged on the partition plate 140.
The application provides a valve barrel passes through valve barrel integrated into one piece, not only reducible part quantity, reduce the assembly process, still can guarantee the axiality of each part in the valve barrel, reduce the grade that the interior outer pipe wall machining precision of valve barrel required, effectively reduce accumulative error, solve because the problem of valve core subassembly jamming damage in assembly and the dismantlement process that valve core subassembly axiality or machining precision do not enough arouse, improve the qualification rate of valve core subassembly assembly, and first valve core and valve barrel, second valve core forms certain cone angle structure with first valve core, increase the sealing performance of valve core subassembly, still can reduce material and heat treatment cost simultaneously, the technology and the man-hour expense that the machining precision requirement reduction leads to, the required man-hour expense of split type assembly, reduce the whole cost of valve body subassembly.
The technical solutions of the present application are described in detail with reference to specific embodiments, which are used to help understand the ideas of the present application. The derivation and modification made by the person skilled in the art on the basis of the specific embodiment of the present application also belong to the protection scope of the present application.
Claims (10)
1. A valve cartridge assembly, comprising: the valve sleeve is integrally formed and comprises a pipe body, the pipe body is divided into a front section, a middle section and a rear section which are sequentially connected along the length direction, the screw plug is installed in the front section, a first protruding portion is arranged on the circumferential direction of the inner pipe wall of the middle section, a high-pressure port and a working port are respectively arranged on two sides of the first protruding portion, the first valve core is installed between the first protruding portion and the front section and is abutted against the first protruding portion, an installation hole penetrating through the length direction of the first valve core is formed in the first valve core, the second valve core is installed in the installation hole, two ends of the first spring are abutted against the screw plug and the second valve core, a partition plate is arranged on the inner pipe wall between the rear section and the working port, a through hole is formed in the partition plate, the piston rod comprises a piston rod base and a movable rod, the movable rod is installed on the piston rod base, the piston rod base is installed in the rear section, the movable rod penetrates through the through hole to drive the second valve core and the first valve core to move, the second spring sleeve is arranged on the movable rod, and two ends of the second spring sleeve are respectively arranged on the spacing plate and the piston rod base.
2. The valve cartridge assembly of claim 1, further comprising: the back nut and the screw plug are in threaded connection in the front section, the threaded connection direction of the back nut and the screw plug is opposite, the dismounting openings are formed in the back nut and the screw plug, and the two dismounting openings are coaxial.
3. The valve core assembly of claim 1, wherein the plug screw comprises a first cylinder and a second cylinder which are coaxially connected, the dismounting port is arranged on the first cylinder, the second cylinder is provided with an embedded groove, one end of the first spring is arranged in the embedded groove, the front section comprises a first section and a second section which are connected, an internal thread is arranged on the inner pipe wall of the first section, an external thread is arranged on the first cylinder, the internal thread is in threaded connection with the external thread, the second cylinder blocks the second section, and the inner diameter of the first section is larger than that of the second section and larger than that of the middle section.
4. The valve core assembly of claim 3, wherein a second protruding portion is circumferentially arranged at one end of the first cylinder close to the second cylinder, a slot is circumferentially arranged on the inner wall of the first section, the second protruding portion is inserted into the slot, a first mounting groove is arranged on the circumferential outer wall of the second cylinder, and a sealing ring is arranged in the first mounting groove.
5. The valve core assembly of claim 4, wherein a first balance port is provided at an end of the intermediate section adjacent the front section and a second balance port is provided at a wall of the rear section.
6. The valve core assembly of claim 5, wherein the rear section comprises a left rear section and a right rear section connected in series, the left rear section is located between the spacer plate and the right rear section, the right rear section has an inner diameter greater than that of the left rear section and equal to that of the middle section, one end of the second spring is embedded in the left rear section, and the second balance port is located on the right rear section.
7. The valve core assembly of claim 6, wherein the piston rod base has a boss portion thereon, the movable rod is disposed on the boss portion, the outer diameter of the boss portion is smaller than the piston rod base and larger than the movable rod, the other end of the second spring is sleeved on the boss portion, a second mounting groove is disposed on the circumferential outer wall of the piston rod base, and a sealing ring is mounted in the second mounting groove.
8. The valve core assembly of claim 7, wherein the outer pipe wall of the second section is provided with a third mounting groove for installing a sealing ring; a fourth mounting groove for mounting a sealing ring is formed in the outer pipe wall corresponding to the first boss, and the fourth mounting groove is located between the high-pressure port and the working port; a fifth mounting groove for mounting a sealing ring is formed in the outer pipe wall of the right rear section, and a second balance port is located between the fifth mounting groove and the working port; and a sixth mounting groove is formed in the hole wall of the through hole, and a sealing ring sleeved with the movable rod is arranged in the sixth mounting groove.
9. A hydraulically controlled one-way valve comprising a valve body and a spool assembly according to any one of claims 1 to 8 mounted in the valve body.
10. The utility model provides a valve sleeve, its characterized in that, valve sleeve integrated into one piece, it includes the body, the body divides into anterior segment, middle section and the back end that connects gradually along length direction, the anterior segment is used for installing the plug screw, be provided with the first bellying that is used for with first case butt in the circumference of the interior pipe wall in middle section, the both sides of first bellying are provided with high pressure port and working port respectively, the back end is used for installing the piston rod, be provided with the space bar on the interior pipe wall between back end and the working port, be provided with the through-hole that is used for the cover to establish the piston rod on the space bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010215092.0A CN111237279A (en) | 2020-03-24 | 2020-03-24 | Valve element assembly, hydraulic control one-way valve and valve sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112096941A (en) * | 2020-09-21 | 2020-12-18 | 湖南机油泵股份有限公司 | Oil pump pressure limiting valve capable of improving spring installation precision |
| CN112155895A (en) * | 2020-11-25 | 2021-01-01 | 浙江肯特科技股份有限公司 | Intelligent control micro-flow comfortable sleeping mattress |
| CN113266499A (en) * | 2021-06-02 | 2021-08-17 | 北京汽车集团越野车有限公司 | Car check valve and car |
| WO2022052478A1 (en) * | 2020-09-08 | 2022-03-17 | 浙江盾安人工环境股份有限公司 | One-way valve and air conditioning device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040065190A1 (en) * | 2002-10-08 | 2004-04-08 | Rice Steven L. | Fluid control valve |
| CN201982121U (en) * | 2011-04-08 | 2011-09-21 | 巨隆集团芜湖兴隆液压有限公司 | Plug-in type pillar hydraulic control one-way valve |
| CN102364051A (en) * | 2011-11-14 | 2012-02-29 | 巨隆集团芜湖兴隆液压有限公司 | High-flow hydraulic control one-way valve |
| CN204140114U (en) * | 2014-10-22 | 2015-02-04 | 巨隆集团芜湖兴隆液压有限公司 | A kind of plug-in type one-way lock |
| CN107630712A (en) * | 2017-09-23 | 2018-01-26 | 鸿大智能机械有限公司 | The core assembly of column pilot operated check valve |
| CN107676118A (en) * | 2017-09-23 | 2018-02-09 | 鸿大智能机械有限公司 | The valve pocket of column pilot operated check valve |
| CN107859524A (en) * | 2017-10-27 | 2018-03-30 | 鸿大智能机械有限公司 | The core assembly of hydraulic control one-way valve |
-
2020
- 2020-03-24 CN CN202010215092.0A patent/CN111237279A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040065190A1 (en) * | 2002-10-08 | 2004-04-08 | Rice Steven L. | Fluid control valve |
| CN201982121U (en) * | 2011-04-08 | 2011-09-21 | 巨隆集团芜湖兴隆液压有限公司 | Plug-in type pillar hydraulic control one-way valve |
| CN102364051A (en) * | 2011-11-14 | 2012-02-29 | 巨隆集团芜湖兴隆液压有限公司 | High-flow hydraulic control one-way valve |
| CN204140114U (en) * | 2014-10-22 | 2015-02-04 | 巨隆集团芜湖兴隆液压有限公司 | A kind of plug-in type one-way lock |
| CN107630712A (en) * | 2017-09-23 | 2018-01-26 | 鸿大智能机械有限公司 | The core assembly of column pilot operated check valve |
| CN107676118A (en) * | 2017-09-23 | 2018-02-09 | 鸿大智能机械有限公司 | The valve pocket of column pilot operated check valve |
| CN107859524A (en) * | 2017-10-27 | 2018-03-30 | 鸿大智能机械有限公司 | The core assembly of hydraulic control one-way valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022052478A1 (en) * | 2020-09-08 | 2022-03-17 | 浙江盾安人工环境股份有限公司 | One-way valve and air conditioning device |
| CN112096941A (en) * | 2020-09-21 | 2020-12-18 | 湖南机油泵股份有限公司 | Oil pump pressure limiting valve capable of improving spring installation precision |
| CN112155895A (en) * | 2020-11-25 | 2021-01-01 | 浙江肯特科技股份有限公司 | Intelligent control micro-flow comfortable sleeping mattress |
| CN113266499A (en) * | 2021-06-02 | 2021-08-17 | 北京汽车集团越野车有限公司 | Car check valve and car |
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Address after: 101399 No.27, Linhe Development Zone, Shunyi District, Beijing Applicant after: Beijing Tianma Zhikong Technology Co.,Ltd. Applicant after: BEIJING CCRI-TIANMA AUTOMATION TECHNOLOGY Co.,Ltd. Address before: No.131, ground floor, Tiandi building, No.5, qingniangou East Road, Hepingli, Chaoyang District, Beijing 100013 Applicant before: BEIJING TIANDI-MARCO ELECTRO-HYDRAULIC CONTROL SYSTEM Co.,Ltd. Applicant before: BEIJING CCRI-TIANMA AUTOMATION TECHNOLOGY Co.,Ltd. |
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Application publication date: 20200605 |