阅读说明：本技术 可调液压补油阀 (Adjustable hydraulic oil compensating valve ) 是由 周财华 周良 严东楠 徐卫华 童玥雯 于 2020-12-21 设计创作，主要内容包括：本发明涉及一种可调液压补油阀,包括阀体和设置阀体一端的阀罩,所述阀体内部设有阀腔,所述阀腔内底部设有阀座,所述阀座上端设有阀球,所述阀罩内部设有第一弹簧,所述第一弹簧的一端抵靠在阀球上端,所述阀罩远离阀体的一端设有调节螺塞,所述调节螺塞位于第一弹簧远离阀球的一端。该补油阀应用在液压隔膜泵中进行补油行为,通过调节螺塞以控制第一弹簧刚度,从而控制阀球起跳的阈值,最终达到液压腔在合适真空度下完成补油行为。(The invention relates to an adjustable hydraulic oil replenishing valve which comprises a valve body and a valve cover arranged at one end of the valve body, wherein a valve cavity is arranged in the valve body, a valve seat is arranged at the bottom in the valve cavity, a valve ball is arranged at the upper end of the valve seat, a first spring is arranged in the valve cover, one end of the first spring abuts against the upper end of the valve ball, an adjusting screw plug is arranged at one end, far away from the valve body, of the valve cover, and the adjusting screw plug is arranged at one end, far away from the valve ball, of the first spring. The oil supplementing valve is applied to oil supplementing in the hydraulic diaphragm pump, and the screw plug is adjusted to control the rigidity of the first spring, so that the valve ball tripping threshold is controlled, and finally the oil supplementing action of the hydraulic cavity under a proper vacuum degree is achieved.)

1. The utility model provides an adjustable hydraulic pressure fuel charging valve, its characterized in that, includes the valve body and sets up the valve bonnet of valve body one end, the inside valve pocket that is equipped with of valve body, the bottom is equipped with the disk seat in the valve pocket, the disk seat upper end is equipped with the valve ball, the inside first spring that is equipped with of valve bonnet, the one end of first spring is supported and is leaned on the valve ball upper end, the valve bonnet one end of keeping away from the valve body is equipped with the regulation plug screw, it is located the one end that the valve ball was kept away from to the first spring.

2. The adjustable hydraulic oil replenishing valve according to claim 1, wherein a sealing member is provided between the lower end of the valve housing and the valve body.

3. The adjustable hydraulic oil replenishing valve according to claim 1, wherein a cover is arranged at the upper end of the valve cover, a movable cavity is formed between the cover and the valve cover, a first piston is arranged on one side of the cover close to the adjusting screw plug, a piston shaft is arranged at one end of the first piston close to the adjusting screw plug, a second piston is arranged at one end of the piston shaft close to the adjusting screw plug, the second piston is fixed on the adjusting screw plug, a second spring is arranged between the first piston and the second piston, and the second spring is sleeved on the periphery of the piston shaft.

4. The adjustable hydraulic oil replenishing valve according to claim 3, wherein the upper end of the valve cover is provided with a limiting frame, and one side of the cover close to the valve cover is provided with a guide frame sleeved on the periphery of the limiting frame.

5. The adjustable hydraulic oil replenishing valve according to claim 4, wherein a fixed outer sleeve is arranged on the periphery of the valve cover, a telescopic cavity is formed between the fixed outer sleeve and the valve cover, and a limiting extension which moves along the telescopic cavity is arranged on one side, close to the valve cover, of the cover.

6. The adjustable hydraulic oil replenishing valve according to claim 5, wherein a plurality of annular sealing grooves are formed in one side, close to the limiting extension, of the valve cover.

7. The adjustable hydraulic oil replenishing valve according to claim 5, wherein the depth of the telescopic cavity is m2, the clearance between the guide frame and the valve housing is m1, and m2 is greater than m 1.

8. The adjustable hydraulic oil replenishing valve according to claim 1, wherein a limit inner pipe is arranged on one side of the adjusting screw plug close to the valve cavity, and a limit groove for mounting the first spring is formed between the limit inner pipe and the inner wall of the valve cover.

9. The adjustable hydraulic oil replenishing valve according to claim 1, wherein the inner wall of the valve housing is provided with a sliding groove, and a sliding block sliding along the sliding groove is arranged in the sliding groove.

Technical Field

The invention relates to the technical field of oil replenishing valves, in particular to an adjustable hydraulic oil replenishing valve.

Background

In present domestic numerous hydraulic diaphragm pump, the oil supplementing valve is one of the indispensable constitution part of ensureing that hydraulic diaphragm pump normally works, in hydraulic diaphragm pump working process, fluid in the hydraulic pressure intracavity reduces owing to leak, influence the normal work of hydraulic diaphragm pump, the oil supplementing valve has the effect that reduces the hydraulic oil quantity because of leaking in the compensation hydraulic pressure intracavity, make the volume of hydraulic oil in the hydraulic pressure intracavity between plunger and the diaphragm remain unchanged, guarantee hydraulic diaphragm pump's normal work, but when the in-service use, its inside vacuum can't carry out accurate reasonable control, lead to the oil supplementing can't go on under suitable vacuum, so need to develop an adjustable hydraulic oil supplementing valve and solve the problem among the prior art urgently.

Disclosure of Invention

The invention aims to provide an adjustable hydraulic oil replenishing valve to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides an adjustable hydraulic pressure fuel charging valve, includes the valve body and sets up the valve bonnet of valve body one end, the inside valve pocket that is equipped with of valve body, the bottom is equipped with the disk seat in the valve pocket, the disk seat upper end is equipped with the valve ball, the inside first spring that is equipped with of valve bonnet, the one end of first spring is supported and is leaned on valve ball upper end, the one end that the valve body was kept away from to the valve bonnet is equipped with the regulation plug screw, it is located the one end that the valve ball was kept away from to the first.

Preferably, a sealing member is arranged between the lower end of the valve cover and the valve body.

Preferably, the upper end of valve bonnet is equipped with the housing, form movable chamber between housing and the valve bonnet, one side that the housing is close to adjusting the plug screw is equipped with first piston, the one end that first piston is close to adjusting the plug screw is equipped with the piston axle, the one end that the piston axle is close to adjusting the plug screw is equipped with the second piston, the second piston is fixed on adjusting the plug screw, be equipped with the second spring between first piston and the second piston, the second spring cup joints the periphery at the piston axle.

Preferably, the upper end of valve bonnet is equipped with spacing frame, one side that the housing is close to the valve bonnet is equipped with the guide frame that cup joints the spacing frame periphery.

Preferably, the periphery of valve bonnet is equipped with fixed overcoat, form flexible chamber between fixed overcoat and the valve bonnet, one side that the housing is close to the valve bonnet is equipped with along the spacing epitaxy of flexible chamber activity.

Preferably, one side of the valve bonnet, which is close to the limiting extension, is provided with a plurality of annular sealing grooves.

Preferably, the depth of the telescopic cavity is m2, the clearance of the guide frame from the valve cover is m1, and m2 is more than m 1.

Preferably, one side of the adjusting screw plug, which is close to the valve cavity, is provided with a limiting inner tube, and a limiting groove for mounting the first spring is formed between the limiting inner tube and the inner wall of the valve cover.

Preferably, the valve bonnet inner wall is equipped with the spout, be equipped with in the spout along the gliding slider of spout.

Compared with the prior art, the invention has the beneficial effects that:

1. during the use, this oil supplementing valve is used and is carried out the oil supplementing action in hydraulic pressure diaphragm pump, through adjusting the plug screw in order to control first spring rigidity to the threshold value of control valve ball take-off finally reaches the hydraulic pressure chamber and accomplishes the oil supplementing action under suitable vacuum.

2. Establish the sealing member through the lower extreme at the valve bonnet with between the valve body, so can effectively improve the leakproofness between valve body and the valve bonnet.

3. Establish first piston, piston shaft and second piston through the one side that is close to the regulation plug screw at the housing, the piston shaft is flexible between first piston and second piston to utilize the elastic restoring force of second spring, can realize guaranteeing the stability of oil supplementing valve work to the limiting displacement who adjusts the plug screw.

4. The stability of housing activity can effectively be improved in the setting of spacing frame and guide frame.

5. The stability of housing activity can be guaranteed in the setting of spacing epitaxy.

6. Through establish a plurality of annular seal groove at the valve bonnet near the epitaxial one side of spacing, so can be by improving the leakproofness between valve bonnet and the spacing epitaxy.

7. Through making the degree of depth in flexible chamber be greater than the clearance of guide frame apart from the valve bonnet, so can guarantee to adjust the plug screw and have sufficient regulating variable, enlarged the activity regulating variable of valve ball take-off.

8. Through adjusting the plug screw and being close to one side of valve pocket and establish spacing inner tube, form the spacing groove that supplies first spring installation between spacing inner tube and the valve bonnet inner wall, so can guarantee the stability of first spring activity.

9. Through establishing the spout at the valve bonnet inner wall, establish in the spout along the gliding slider of spout, so can guarantee to adjust the stability of plug screw activity.

Drawings

FIG. 1 is a schematic structural diagram of a first embodiment of an adjustable hydraulic oil charging valve according to the present invention;

FIG. 2 is a schematic structural diagram of a second embodiment of the adjustable hydraulic oil compensating valve of the present invention;

fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.

In the figure: 1. a valve housing; 2. adjusting a screw plug; 3. a first spring; 4. a valve ball; 5. a seal member; 6. a valve seat; 7. a valve body; 8. a cover; 9. an annular seal groove; 10. a movable cavity; 11. a guide frame; 12. a limiting frame; 13. a first piston; 14. a piston shaft; 15. a second spring; 16. a second piston; 17. a valve cavity; 18. a slider; 19. limiting the inner pipe; 20. a limiting groove; 21. fixing the outer sleeve; 22. a telescoping chamber; 23. limiting epitaxy; 24. a chute.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

As shown in fig. 1, this embodiment provides, an adjustable hydraulic oil replenishing valve, including valve body 7 and the valve bonnet 1 that sets up valve body 7 one end, the inside valve pocket 17 that is equipped with of valve body 7, the bottom is equipped with disk seat 6 in the valve pocket 17, disk seat 6 upper end is equipped with valve ball 4, the inside first spring 3 that is equipped with of valve bonnet 1, the one end of first spring 3 is supported and is leaned on in valve ball 4 upper end, the one end that valve body 7 was kept away from to valve bonnet 1 is equipped with adjusts plug screw 2, it is located the one end that valve ball 4 was kept away from to first spring 3 to adjust plug screw 2. During the use, this oil supplementing valve uses and mends the oil action in hydraulic pressure diaphragm pump, through adjusting plug screw 2 with 3 rigidness of control first spring to the threshold value of the jump of control valve ball 4 finally reaches the hydraulic pressure chamber and accomplishes the oil action of meneing under suitable vacuum.

In this embodiment, a seal 5 is provided between the lower end of the valve housing 1 and the valve body 7. By arranging the sealing member 5 between the lower end of the valve housing 1 and the valve body 7, the sealing property between the valve body 7 and the valve housing 1 can be effectively improved.

Example two

As shown in fig. 2-3, the present embodiment is different from the first embodiment in that a cap cover 8 is disposed at an upper end of the valve housing 1, a movable cavity 10 is formed between the cap cover 8 and the valve housing 1, a first piston 13 is disposed on a side of the cap cover 8 close to the adjusting screw plug 2, a piston shaft 14 is disposed at one end of the first piston 13 close to the adjusting screw plug 2, a second piston 16 is disposed at one end of the piston shaft 14 close to the adjusting screw plug 2, the second piston 16 is fixed on the adjusting screw plug 2, a second spring 15 is disposed between the first piston 13 and the second piston 16, and the second spring 15 is sleeved on an outer periphery of the piston shaft 14. Through establish first piston 13, piston shaft 14 and second piston 16 in the one side that cap 8 is close to regulation plug screw 2, piston shaft 14 is flexible between first piston 13 and second piston 16 to utilize the elastic restoring force of second spring 15, can realize the limiting displacement to regulation plug screw 2, guarantee the stability of oil supplementing valve work.

In this embodiment, the upper end of the valve bonnet 1 is provided with a limiting frame 12, and one side of the cover cap 8 close to the valve bonnet 1 is provided with a guide frame 11 sleeved on the periphery of the limiting frame 12.

In this embodiment, the periphery of valve bonnet 1 is equipped with fixed overcoat 21, form flexible chamber 22 between fixed overcoat 21 and the valve bonnet 1, one side that the housing 8 is close to the valve bonnet 1 is equipped with along the spacing extension 23 of flexible chamber 22 activity. The arrangement of the limiting extension 23 can ensure the stability of the movement of the cover 8.

In this embodiment, a plurality of annular sealing grooves 9 are formed in one side of the valve bonnet 1 close to the limiting extension 23. Through establish a plurality of annular seal groove 9 at valve bonnet 1 near the side of spacing extension 23, so can be by improving the leakproofness between valve bonnet 1 and the spacing extension 23.

In this embodiment, the depth of the telescopic cavity 22 is m2, the clearance between the guide frame 11 and the valve housing 1 is m1, and m2 > m 1. By making the depth of the telescopic cavity 22 larger than the gap between the guide frame 11 and the valve bonnet 1, the adjusting screw plug 2 can be ensured to have sufficient adjusting amount, and the movable adjusting amount of the valve ball 4 during the take-off is enlarged.

In this embodiment, a limit inner tube 19 is disposed on one side of the adjusting screw plug 2 close to the valve cavity 17, and a limit groove 20 for installing the first spring 3 is formed between the limit inner tube 19 and the inner wall of the valve housing 1. The limiting inner tube 19 is arranged on one side, close to the valve cavity 17, of the adjusting screw plug 2, and a limiting groove 20 for mounting the first spring 3 is formed between the limiting inner tube 19 and the inner wall of the valve cover 1, so that the moving stability of the first spring 3 can be ensured.

In this embodiment, the inner wall of the valve housing 1 is provided with a sliding groove 24, and the sliding block 18 sliding along the sliding groove 24 is arranged in the sliding groove 24. Through establish spout 24 at valve bonnet 1 inner wall, establish in the spout 24 along the gliding slider 18 of spout 24, can guarantee like this and adjust the stability of plug screw 2 activity.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.