阅读说明：本技术 一种气安阀 (Gas safety valve ) 是由 陈太美 陈威 孙丽 于 2020-11-19 设计创作，主要内容包括：本申请涉及一种气安阀,包括阀体,阀体的底部设置有阀座,阀体的中部沿竖直方向设置为空腔,阀体在空腔的下端部设置有安全阀芯,安全阀芯的上方设置有导杆,导杆上套设有安阀簧,阀体的顶部设置有调节螺母,阀座上设置有轴向通孔和径向通孔,安全阀芯在轴向通孔内设置有放气阀芯、放气弹簧和阀球,所述阀体在空腔内设置有套设安阀簧的防护组件,所述安阀簧受到一个沿阀体轴线方向的力时,防护组件限制安阀簧沿阀体的轴线方向发生形变。本申请具有提高气安阀使用寿命的效果。(The utility model relates to a valve is ann to gas, including the valve body, the bottom of valve body is provided with the disk seat, and the middle part of valve body sets up to the cavity along vertical direction, and the valve body is provided with safety valve core at the lower tip of cavity, and safety valve core's top is provided with the guide arm, and the cover is equipped with ann valve spring on the guide arm, and the top of valve body is provided with adjusting nut, is provided with axial through hole and radial through hole on the disk seat, and safety valve core is provided with the case of putting gas, gassing spring and valve ball in the axial through hole, the valve body is provided with the cover in the cavity and establishes the protective assembly who ann valve spring, ann valve spring when receiving one along the power of valve body axis direction. This application has the effect that improves gas ampere valve life.)

1. The utility model provides a gas ampere valve, including valve body (1), the bottom of valve body (1) is provided with disk seat (2), the middle part of valve body (1) sets up to the cavity along vertical direction, valve body (1) is provided with safety valve core (3) at the lower tip of cavity, the top of safety valve core (3) is provided with guide arm (4), the cover is equipped with ann valve spring (5) on guide arm (4), the top of valve body (1) is provided with adjusting nut (7), be provided with axial through hole (21) and radial through hole (22) on disk seat (2), safety valve core (3) are provided with in axial through hole (21) and put gas valve core (8), gassing spring (9) and valve ball (10), its characterized in that: the safety valve is characterized in that a protection component (13) for sleeving the safety valve spring (5) is arranged in the cavity of the valve body (1), and when the safety valve spring (5) is subjected to a force along the axis direction of the valve body (1), the protection component (13) limits the safety valve spring (5) to deform along the axis direction of the valve body (1).

2. An air relief valve according to claim 1 wherein: protection component (13) are including overlapping last sliding sleeve (14) and lower sliding sleeve (15) of establishing ampere valve spring (5) respectively, sliding sleeve (15) are established down to last sliding sleeve (14) cover, the perpendicular downwardly extending of upper end that goes up sliding sleeve (14) internal perisporium deviates from lower sliding sleeve (15) is provided with arc (16) of a plurality of and lower sliding sleeve (15) sliding connection, sliding sleeve (15) are just offered confession arc (16) along the gliding spout of vertical direction (17) to the position of arc (16) down, arc (16) are the same towards the terminal surface radian of ampere valve spring (5) with lower sliding sleeve (15) towards the terminal surface radian of ampere valve spring (5), ampere valve spring (5) are contradicted with the internal perisporium slip of lower sliding sleeve (15).

3. An air relief valve according to claim 2 wherein: the upper end of the valve body (1) is provided with an adjusting nut (7), and the lower end of the adjusting nut (7) is provided with a pressing plate (18) which is abutted against the valve spring (5) and the upper sliding sleeve (14).

4. A gas safety valve according to claim 3, characterized in that: the lower end part of the guide rod (4) is provided with a bearing plate (19) for bearing the valve installing spring (5) and the lower sliding sleeve (15).

5. An air relief valve according to claim 4 wherein: the lower end part of the lower sliding sleeve (15) vertically extends downwards to be provided with a clamping block (20), a clamping groove for clamping the clamping block (20) is formed in the position, opposite to the clamping block (20), of the supporting plate (19), and the pressing plate (18) is rotatably connected with the adjusting nut (7).

6. A gas safety valve according to claim 3, characterized in that: the upper end part of the adjusting nut (7) is embedded with a round oil pointer (26).

7. An air relief valve according to claim 1 wherein: the lower pot head of valve body (1) is equipped with ann disk seat (2) board, even intermittent type wears to be equipped with a plurality of screw (24) on ann disk seat (2) board.

8. An air relief valve according to claim 7 wherein: the mounting valve seat (2) plate is in threaded connection with the valve body (1).

9. An air relief valve according to claim 8 wherein: the valve seat is characterized in that a threaded sleeve (25) is formed and extended in an integrated mode in the axis direction of the inner peripheral wall of the valve seat (2) plate towards the valve seat (2) plate, and a threaded groove for the threaded sleeve (25) to be screwed into the valve body (1) is formed in the valve body (1).

10. An air relief valve according to claim 9 wherein: the valve body (1) is provided with seal groove (27) above thread bush (25), the embedded sealing washer (28) that is equipped with in seal groove (27), the interior perisporium conflict of sealing washer (28) and ann disk seat (2) board is laid.

Technical Field

The application relates to the field of valves, in particular to an air safety valve.

Background

At present, in the manufacturing process of the pump industry, a safety valve and an air release valve are one of the components which are not lacked in the safety use ratio of the pump.

The working principle of the gas safety valve mainly depends on the elastic force of the spring, so that the service life of the spring determines the service life of the gas safety valve to a certain extent, and how to improve the service life of the spring is one of the main means for improving the service life of the gas safety valve at present.

Disclosure of Invention

In order to improve the life of gas ampere valve, this application provides a gas ampere valve.

The application provides a gas ampere valve adopts following technical scheme:

the utility model provides a gas safety valve, includes the valve body, and the bottom of valve body is provided with the disk seat, and the middle part of valve body sets up to the cavity along vertical direction, and the valve body is provided with safety valve core at the lower tip of cavity, and safety valve core's top is provided with the guide arm, and the cover is equipped with ann valve spring on the guide arm, and the top of valve body is provided with adjusting nut, is provided with axial through hole and radial through hole on the disk seat, and safety valve core is provided with the case of bleeding, gassing spring and valve ball in the axial through hole, the valve body is provided with the cover in the cavity and establishes the protective assembly of ann valve spring, ann valve spring when receiving one along the power of valve body axis direction.

Through adopting above-mentioned technical scheme, when the ann valve performance, ann valve spring can receive one along the ascending power of valve body axial direction, ann valve spring atress takes place the compression, protection component restriction ann valve spring can only take place deformation along the axis direction of valve body, effectual ann valve spring of having resisted takes place horizontal deformation when compressing, although ann valve spring is when taking place deformation along vertical direction, horizontal deformation is little to the influence that ann valve spring holistic deformation produced, if ann valve spring long-time use, will lead to the fact the loss of a deformation to ann valve spring, influence ann valve spring's life, set up protection component, can only take place deformation along the axis direction of valve body to restriction ann valve spring, certain guard action has been played ann valve spring, help improving ann valve spring's life, and then improve ann valve's life.

Preferably, the protective component is including overlapping the last sliding sleeve and the lower sliding sleeve of establishing the ann valve spring respectively, go up the sliding sleeve and establish down the sliding sleeve, the perpendicular downwardly extending of upper end that the perisporium deviates from lower sliding sleeve in last sliding sleeve is provided with a plurality of and lower sliding sleeve sliding connection's arc, the gliding spout that supplies the arc to follow vertical direction is offered just to the position of arc to the lower sliding sleeve, the arc is the same towards the terminal surface radian of ann valve spring with the lower sliding sleeve, the ann valve spring is contradicted with the internal perisporium slip of lower sliding sleeve.

Through adopting above-mentioned technical scheme, go up the sliding sleeve and establish with the lower sliding sleeve slip cap, make the protective component can follow the change that ann valve spring deformation takes place length, the setting of the spout of arc has guaranteed that ann valve spring can only follow vertical direction and take place deformation under protective component's restriction.

Preferably, the upper end of the valve body is provided with an adjusting nut, and the lower end of the adjusting nut is provided with a pressing plate which abuts against the valve spring and the upper sliding sleeve.

Through adopting above-mentioned technical scheme, through twisting adjusting nut soon, can adjust the position of pressing the clamp plate, and then adjust the decrement of ann valve spring, and then can change the pressure environment that the gas ampere valve was suitable for.

Preferably, the lower end part of the guide rod is provided with a bearing plate for bearing the valve spring and the lower sliding sleeve.

Through adopting above-mentioned technical scheme, guarantee that ann valve spring and the cover that the gliding cover can be stable establish on the guide arm.

Preferably, the lower end part of the lower sliding sleeve vertically extends downwards to be provided with a clamping block, a clamping groove for clamping the clamping block is formed in the position, opposite to the clamping block, of the supporting plate, and the pressing plate is rotatably connected with the adjusting nut.

Through adopting above-mentioned technical scheme, the lower sliding sleeve is contradicted on the bearing board through the joint cooperation of fixture block and draw-in groove, has restricted the rotation of lower sliding sleeve, when needs revolve wrong adjusting nut, takes place to rotate according to clamp plate and adjusting nut, drives and moves according to clamp plate along vertical direction, when having avoided revolving wrong adjusting nut, and the clamp plate drives the upper sliding sleeve and rotates according to the clamp plate, and the upper sliding sleeve drives lower sliding sleeve and rotates, and then drives ann valve spring and rotates, makes ann valve spring produce unnecessary deformation, influences ann valve spring's life.

Preferably, a circular oil pointer is embedded at the upper end part of the adjusting nut.

Through adopting above-mentioned technical scheme, the liquid measure in the staff's accessible circular oil pointer observation valve body.

Preferably, the lower pot head of valve body is equipped with ann valve seat board, even intermittent type wears to be equipped with a plurality of screw on the ann valve seat board.

Through adopting above-mentioned technical scheme, the valve body is contradicted on the work piece of required installation through ann's valve seat board, then with the screw will ann the valve seat board fix on the work piece can, guaranteed the stable installation of valve body on the work piece.

Preferably, the valve seat plate is in threaded connection with the valve body.

Through adopting above-mentioned technical scheme, make things convenient for the staff will install and detach the valve body with the installation valve seat board.

Preferably, the internal perisporium of ann valve seat board is provided with the thread bush towards the axis direction integrated into one piece extension of ann valve seat board, set up the thread groove that supplies thread bush screw thread screw in valve body on the valve body.

Through adopting above-mentioned technical scheme, ann's valve seat board passes through thread bush and thread groove threaded connection with the valve body, has not only made things convenient for the staff to install ann's valve seat board on the valve body, has ensured the mounted position of ann's valve seat board and thread groove moreover, has avoided because ann's valve seat and valve body because the change of mounted position relation, influences the stability of gas ampere valve installation on the work piece.

Preferably, the valve body is provided with the seal groove in the top of thread groove, the embedded sealing washer that is equipped with of seal groove, the sealing washer is contradicted with the internal perisporium of installing the valve seat board and is laid.

Through adopting above-mentioned technical scheme, set up seal groove and sealing washer, improve the leakproofness between valve body and the ann valve seat board.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the protection assembly is arranged, so that a certain protection effect is achieved on the safety valve spring, the service life of the safety valve spring is prolonged, and the service life of the safety valve is prolonged;

2. the stability of the valve spring is improved by arranging the pressing plate and the bearing plate;

3. through setting up the ann valve seat board, improved the stability of valve body installation on the work piece.

Drawings

Fig. 1 is an overall sectional structural schematic diagram of the present application.

Fig. 2 is a cross-sectional view of a shield assembly embodied in the present application.

Description of reference numerals: 1. a valve body; 2. a valve seat; 21. an axial through hole; 22. a radial through hole; 3. a safety valve core; 4. a guide bar; 5. an installation valve spring; 6. locking the nut; 7. adjusting the nut; 8. a relief valve core; 9. a deflation spring; 10. a valve ball; 11. intermittently adjusting the pad; 12. a retainer ring; 13. a guard assembly; 14. an upper sliding sleeve; 15. a lower sliding sleeve; 16. an arc-shaped plate; 17. a chute; 18. a pressing plate; 19. a support plate; 20. a clamping block; 23. installing a valve seat plate; 24. a screw; 25. a threaded sleeve; 26. a circular oil pointer; 27. a sealing groove; 28. and (5) sealing rings.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses an air safety valve. Referring to fig. 1 and 2, the gas safety valve comprises a valve body 1 and a valve seat 2, wherein the middle part of the valve body 1 is arranged along the axial direction of the valve body for a hollow cavity, the valve seat 2 is positioned at the lower end part of the valve body 1, the upper end part of the valve seat 2 is in threaded connection with the valve body 1 at the cavity, the valve seat 2 is respectively provided with an axial through hole 21 and a radial through hole 22, the valve seat 2 is internally provided with a safety valve core 3 in the axial through hole 21, the upper end part of the safety valve core 3 is sleeved with a guide rod 4, the guide rod 4 is sleeved with a valve spring 5, the upper end surface of the valve body 1 is provided with a locking nut 6, the top part of the valve body 1 is provided with an adjusting nut 7, the safety valve core 3 is provided with an air release valve core 8, an air release spring 9 and a valve ball 10 in an axial through hole 21, an intermittent adjusting pad 11 and a retaining ring 12 are arranged below the air release valve core 8, and the opening height of the air release valve core 8 can be adjusted by the intermittent adjusting pad 11 and the retaining ring 12.

The working process of the gas safety valve is that when the oil pressure in the hydraulic pump system exceeds the pressing force of the safety valve spring 5 on the safety valve core 3, the oil jacks up the safety valve core 3 through the axial through hole 21, so that the oil can flow out through the radial through hole 22, and the oil pressure of the system is unloaded, thereby protecting the whole system; because the oil pressure of the hydraulic pump is pulsating along with the reciprocating motion of the plunger, the air release valve core 8 is pushed away by the air release spring 9 in the liquid absorbing process of the plunger, at the moment, the gas in the oil cavity is discharged along the gap seam pushed by the air release valve core 8, and the valve ball 10 is pushed away to be discharged out of the pump; when the plunger discharges liquid, the pressure of the oil cavity is gradually increased, the air release valve core 8 compresses the air release spring 9, and the air release is closed.

Valve body 1 is provided with protective assembly 13 in the cavity, protective assembly 13 includes upper sliding sleeve 14 and lower sliding sleeve 15, upper sliding sleeve 14 sliding sleeve establishes lower sliding sleeve 15, upper sliding sleeve 14 and lower sliding sleeve 15 all overlap and establish ann valve spring 5, the internal perisporium of lower sliding sleeve 15 and ann valve spring 5 slide conflict, the upper end downwardly extending of the internal perisporium of upper sliding sleeve 14 is provided with arc 16, arc 16 extends to the inside of lower sliding sleeve 15, lower sliding sleeve 15 just offers confession arc 16 along the gliding spout 17 of vertical direction to the position of arc 16, arc 16 is provided with a plurality ofly, the axis of sliding sleeve 14 more than a plurality of arcs 16 is even circumference and lays, arc 16 is the same towards the radian of ann valve spring 5 terminal surface and the radian of lower sliding sleeve 15 internal perisporium.

The upper end of the adjusting nut 7 is connected with a circular oil pointer 26 in a threaded manner in an embedded manner, so that a worker can conveniently observe the liquid level in the safety valve, the lower end of the adjusting nut 7 is rotatably connected with a pressing plate 18 used for pressing down the safety valve spring 5 and the upper sliding sleeve 14, the lower end of the guide rod 4 is provided with a supporting plate 19 used for supporting the safety valve spring 5 and the lower sliding sleeve 15, the lower end of the lower sliding sleeve 15 vertically extends downwards to be provided with a clamping block 20, and the position of the supporting plate 19, which is just opposite to the clamping block 20, is provided with a clamping groove.

When the compression strength of the safety valve spring 5 needs to be adjusted, the adjusting nut 7 is screwed, the adjusting nut 7 rotates with the valve body 1, the supporting plate 19 rotates relative to the adjusting nut 7 under the limitation of the upper sliding sleeve 14 and the lower sliding sleeve 15, the safety valve spring 5 is prevented from rotating along with the adjusting nut 7, and the compression strength of the safety valve spring 5 is stably adjusted.

The lower tip of valve body 1 is provided with ann disk seat 2 board, ann disk seat 2 board thread bush 25 is established on valve body 1, the axis direction integrated into one piece extension of ann disk seat 2 board of internal perisporium orientation is provided with thread bush 25, set up the thread groove that supplies thread bush 25 screw in valve body 1 on the valve body 1, when needs install ann disk seat 2 board on valve body 1, establish valve body 1 with ann disk seat 2 board cover, then revolve wrong ann disk seat 2 board, until the thread bush 25 complete screw in to the thread groove can, not only made things convenient for the staff to install ann disk seat 2 board on valve body 1, and ensured the mounted position of ann disk seat 2 board and thread groove, avoided because ann disk seat 2 and valve body 1 because the change of mounted position relation, influence the stability of ann valve installation on the work piece.

The round sealing groove 27 is formed in the upper portion of the threaded groove 26 of the valve body 1, the sealing ring 28 is embedded in the sealing groove 27 of the valve body 1, when the mounting seat 2 plate is mounted on the valve body 1, the sealing ring 28 is abutted to the inner peripheral wall of the mounting seat 2 plate, and the sealing performance of the valve body 1 when the mounting seat 2 plate is connected is improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.