CN209856132U

CN209856132U - Oil feeding valve

Info

Publication number: CN209856132U
Application number: CN201920426734.4U
Authority: CN
Inventors: 任磊石
Original assignee: WUXI SHENGRUI MACHINERY ELECTRONICS CO Ltd
Current assignee: WUXI SHENGRUI MACHINERY ELECTRONICS CO Ltd
Priority date: 2019-03-29
Filing date: 2019-03-29
Publication date: 2019-12-27
Anticipated expiration: 2029-03-29

Abstract

The utility model relates to a hydrovalve technical field discloses a fuel delivery valve, which comprises a valve body, sliding connection has the case in the valve body, the tip of valve body is equipped with the adapter sleeve, be equipped with the spring between adapter sleeve and the case, the adapter sleeve is kept away from the tip of valve body and has been seted up the regulation hole, sliding connection has the regulation pole in the regulation hole, the outer wall of adapter sleeve is connected with the regulation section of thick bamboo in regulation hole department rotation, regulation section of thick bamboo inner circle is equipped with the internal thread, the one end of adjusting the pole stretch out the regulation section of thick bamboo and with regulation section of thick bamboo threaded connection, the other. After the spring is tired, operating personnel rotates and adjusts a section of thick bamboo, adjusts a section of thick bamboo and passes through the screw thread and drive the regulation pole motion, and through adjusting a section of thick bamboo and adjusting the setting of pole, operating personnel controls the motion of adjusting the pole through adjusting a section of thick bamboo to extrude the spring, strengthen the elasticity of spring and guarantee the result of use of valve.

Description

Oil feeding valve

Technical Field

The utility model relates to a hydrovalve technical field, in particular to oil feed valve.

Background

The oil feeding valve is also called speed regulating valve, and is mainly used for speed regulation and pressure regulation of hydraulic building experiment machines, metal universal experiment machines and other hydraulic experiment machines.

Chinese patent No. CN2846833Y discloses an experimental machine oil feed valve, wherein an adjusting seat is installed at the left end of a valve body, an adjusting rod is connected in the adjusting seat in a threaded fit manner, a valve sleeve is arranged in the valve body, a valve core capable of sliding in the valve sleeve is arranged in the valve sleeve, a connecting sleeve is arranged at the right end of the valve body, a spring is arranged in the connecting sleeve, an oil inlet cavity is arranged between the left end of the valve sleeve and the valve body, an adjusting cavity is arranged between the oil inlet cavity in the valve body and the adjusting seat, a valve clack is formed on the valve body between the adjusting cavity and the oil inlet cavity, a hole is formed on the valve clack, and a conical section at the right end of the adjusting rod can enter the hole.

When the oil supply valve is used, the valve core is pressed by oil pressure to move the spring, and the valve core moves in the valve sleeve. After long-time use, the elasticity of the spring can be weakened, so that the use effect of the valve is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a send fuel tap has the advantage that spring force is adjustable, guarantees valve result of use.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a fuel feeding valve, includes the valve body, sliding connection has the case in the valve body, the tip of valve body is equipped with the adapter sleeve, be equipped with the spring between adapter sleeve and the case, the adapter sleeve is kept away from the tip of valve body and has been seted up the regulation hole, sliding connection has the regulation pole in the regulation hole, the outer wall of adapter sleeve rotates in regulation hole department and is connected with a regulation section of thick bamboo, regulation section of thick bamboo inner circle is equipped with the internal thread, the one end of adjusting the pole stretch out the regulation section of thick bamboo and with regulation section of thick bamboo threaded connection.

Through adopting above-mentioned technical scheme, the spring is tired the back, and operating personnel rotates and adjusts a section of thick bamboo, adjusts a section of thick bamboo and passes through the screw thread and drive the regulation pole motion, adjusts the pole and deepens gradually in the connecting sleeve to press to the spring, the spring pressurized, pressure grow resumes to original elasticity. Through adjusting a section of thick bamboo and adjusting the setting of pole, operating personnel controls the motion of adjusting the pole through adjusting a section of thick bamboo to extrude the spring, strengthen the spring's elasticity and guarantee the result of use of valve.

Furthermore, a sealing separation blade is fixed at the end part, facing the spring, of the adjusting rod, and a sealing ring is sleeved on the outer ring of the sealing separation blade.

Through adopting above-mentioned technical scheme, sealed separation blade and sealing washer seal up the regulation hole, prevent that the fluid in the connecting sleeve from leaking from the regulation hole.

Furthermore, the end part of the adjusting rod facing the spring is provided with a guide hole, the end part of the valve core is fixedly provided with a guide rod which is connected in the guide hole in a sliding manner, and the diameter of the guide hole is larger than that of the guide rod.

By adopting the technical scheme, the end part of the guide rod can be inserted into the guide hole, and the guide hole leaves a space for the movement of the valve core, so that the stroke of the valve core is ensured, and the movement of the valve core is prevented from being interfered.

Furthermore, a guide strip is fixed on the side wall of the valve core, and a guide groove matched with the guide strip is formed in the inner wall of the guide hole.

By adopting the technical scheme, when the valve core is inserted into the guide hole, the guide strip slides in the guide hole, and the guide strip and the guide hole are matched with each other to guide the movement of the valve core, so that the valve core is prevented from being stuck due to movement dislocation.

Furthermore, the fixed slot has been seted up to the regulation hole inner wall, installs the stopper in the fixed slot, set up the spacing groove of bar on the regulation pole, stopper sliding connection is in the spacing inslot.

By adopting the technical scheme, when the adjusting rod slides in the adjusting hole, the limiting block slides in the limiting groove. The limiting blocks and the limiting grooves are matched with each other to limit the movement of the adjusting rod, the adjusting rod can only do linear reciprocating movement, and the adjusting rod is prevented from rotating.

Furthermore, the end part of the connecting sleeve is provided with a horizontal locking hole communicated with the fixing groove, a locking bolt penetrates through the locking hole, and the limiting block is provided with a threaded hole matched with the locking bolt.

Through adopting above-mentioned technical scheme, in the stopper inserted the fixed slot, the screw hole just right with the locking hole, the locking bolt inserts in the locking hole and links to each other with the screw hole. The limiting block is detachably connected with the connecting sleeve through the locking bolt, and the structure is simple and the assembly and disassembly are convenient.

Furthermore, the end face of the adjusting cylinder is provided with a fixing hole, the end face of the connecting sleeve is provided with a circle of locking holes matched with the fixing hole around the adjusting hole, and the fixing hole is internally provided with a fixing pin inserted into the locking hole in a penetrating manner.

By adopting the technical scheme, after the elastic force of the adjusting cylinder on the spring is adjusted, the locking hole is opposite to the fixing hole, and the fixing pin is inserted into the locking hole and the fixing hole. The fixed pin will adjust a section of thick bamboo locking, prevents that operating personnel mistake from touching an adjustment section of thick bamboo and leading to adjusting a section of thick bamboo and rotate the elasticity that influences the spring.

Furthermore, the connecting sleeve is connected with the valve body through threads, and a sealing ring is sleeved outside the connecting sleeve.

Through adopting above-mentioned technical scheme, the seal ring seals the junction of adapter sleeve and valve body, prevents that fluid from revealing.

To sum up, the utility model discloses following beneficial effect has:

1. through the arrangement of the adjusting cylinder and the adjusting rod, an operator controls the movement of the adjusting rod through the adjusting cylinder, so that the spring is extruded, the elasticity of the spring is enhanced, and the using effect of the valve is ensured;

2. through the setting of stopper, stopper and spacing groove mutually support and prescribe a limit to the motion of adjusting the pole, guarantee to adjust the pole and can only linear reciprocating motion, prevent to adjust the pole rotation.

Drawings

FIG. 1 is a schematic structural view of an embodiment;

fig. 2 is a schematic structural diagram of the connecting sleeve in the embodiment.

In the figure, 1, a valve body; 11. an oil inlet cavity; 12. a oil passage; 13. an opening; 14. an oil inlet; 15. a working chamber; 16. an oil outlet; 17. an oil discharge port; 18. an oil outlet channel; 19. an oil drainage hole; 2. a valve core; 22. a guide bar; 3. connecting sleeves; 31. an adjustment hole; 311. fixing grooves; 32. a locking hole; 33. locking the bolt; 34. a locking hole; 35. a fixing pin; 36. a seal ring; 37. a pressure relief cavity; 4. a spring; 51. adjusting a rod; 511. a guide hole; 513. a limiting groove; 52. an adjusting cylinder; 521. a fixing hole; 53. sealing the baffle plate; 54. a seal ring; 541. a threaded hole; 55. a limiting block; 6. adjusting screws; 7. a valve needle; 8. and (3) valve housing.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

an oil delivery valve, as shown in figure 1, comprises a valve body 1, wherein the end part of the valve body 1 is rotatably connected with an adjusting screw 6, and a valve needle 7 inserted into the valve body 1 is connected with the hollow thread inside the adjusting screw 6. An oil inlet cavity 11 and an oil passage 12 are formed in the valve body 1, the oil inlet cavity 11 is communicated with the oil passage 12 through an opening 13, and the end part of the valve needle 7 is matched with the opening 13 and can be inserted into the opening 13 to close the opening 13. An oil inlet 14 communicated with the oil inlet cavity 11 is formed in the valve body 1, and oil enters the oil inlet cavity 11 from the oil inlet 14.

As shown in figure 1, a working cavity 15 communicated with the oil inlet cavity 11 is formed in the valve body 1, and the size of the working cavity 15 is larger than that of the oil inlet cavity 11. A valve sleeve 8 is fixed in the working cavity 15, an oil outlet 16 is arranged on the valve body 1 and communicated with the working cavity 15, and an oil outlet channel 18 communicated with the oil outlet 16 is arranged on the valve sleeve 8. The oil returns to the oil outlet 16 through the oil outlet passage 18.

As shown in fig. 1, a valve core 2 is slidably connected in the valve housing 8, and the end of the valve core 2 points to the oil inlet chamber 11 and blocks the oil outlet passage 18. The end part of the valve body 1 far away from the adjusting screw 6 is in threaded connection with a connecting sleeve 3 which is opposite to the valve core 2, and a sealing ring 36 is sleeved outside the connecting sleeve 3 to enhance the sealing property between the connecting sleeve 3 and the valve body 1. The connecting sleeve 3 is hollow inside to form a pressure relief cavity 37, and the end part of the valve core 2 far away from the oil inlet cavity 11 is inserted into the pressure relief cavity 37. The end of the valve core 2 is connected with the bottom of the pressure relief cavity 37 through a spring 4.

As shown in figure 1, the valve needle 7 seals the opening 13, oil enters the oil inlet cavity 11 from the oil inlet 14, the oil pressure in the oil inlet cavity 11 is increased to press the valve core 2, the valve core 2 moves backwards until the oil outlet channel 18 is opened, and the oil is discharged from the oil outlet 16. After oil stops entering the oil, the valve core 2 resets under the action of the spring 4.

As shown in fig. 1, an oil discharge port 17 and an oil drain hole 19 are formed in the valve body 1, one end of the oil passage 12 is communicated with the oil discharge port 17, the other end is communicated with the pressure relief cavity 37, and the oil drain hole 19 is communicated with the pressure relief cavity 37. The valve needle 7 moves backwards to be pulled out of the opening 13, the oil inlet cavity 11 is communicated with the oil passage 12, oil flows into the oil passage 12 from the oil inlet cavity 11, part of the oil is discharged from the oil discharge port 17, and the other part of the oil enters the pressure relief cavity 37 and is discharged through the oil discharge hole 19.

Referring to fig. 1, an operator rotates the adjusting screw 6, and the adjusting screw 6 drives the valve needle 7 to slide back and forth through threads, so as to control the size of the opening 13, and thus change the pressure of oil on the valve element 2 and the spring 4.

As shown in figure 1, after long-time use, the fatigue elasticity of the spring 4 can be weakened, and the connecting sleeve 3 is provided with an adjusting device for adjusting the elasticity of the spring 4, so that the elasticity of the spring 4 is ensured.

As shown in fig. 2, the adjusting device includes an adjusting cylinder 52 and an adjusting rod 51, the bottom of the connecting sleeve 3 is provided with an adjusting hole 31 communicated with the pressure relief cavity 37, the adjusting rod 51 penetrates into the adjusting hole 31, and the adjusting cylinder 52 is rotatably connected to the end of the adjusting hole 31. The adjustment rod 51 passes out of the adjustment cylinder 52. The adjusting rod 51 is a threaded rod, the inner wall of the adjusting cylinder 52 is provided with internal threads, and the adjusting rod 51 is in threaded fit with the adjusting cylinder 52. The adjustment cylinder 52 rotates and the adjustment rod 51 reciprocates in the adjustment hole 31.

As shown in fig. 2, the end of the adjusting rod 51 extending into the adjusting hole 31 is inserted into the pressure relief chamber 37 and fixed with a sealing stop 53, the sealing stop 53 abuts against the end of the spring 4, and the adjusting rod 51 moves to press or release the spring 4.

As shown in fig. 2, a sealing ring 54 is fitted around the outer ring of the sealing flap 53, and the sealing ring 54 abuts against the inner wall of the pressure release chamber 37 to seal the pressure release chamber, thereby preventing oil from leaking.

As shown in fig. 2, the end of the adjusting rod 51 inserted into the pressure relief cavity 37 points to the valve core 2 and is provided with a guide hole 511, the end of the valve core 2 is fixed with a guide rod 22 inserted into the guide hole 511, and the diameter of the guide hole 511 is larger than that of the guide rod 22. The guide rod 22 can be inserted into the guide hole 511 during the reciprocating motion, and the guide hole 511 reserves a motion space for the motion of the valve core 2, so as to ensure the stroke of the valve core 2.

As shown in fig. 2, a fixing groove 311 is formed in the inner wall of the adjusting hole 31, a limiting block 55 is detachably connected to the fixing groove 311, a strip-shaped limiting groove 513 is formed in the outer wall of the adjusting rod 51, the limiting block 55 is slidably connected to the limiting groove 513, the adjusting rod 51 is in the reciprocating process, and the limiting block 55 slides in the limiting groove 513. The stopper 55 and the stopper groove 513 restrict the movement of the adjustment lever 51 to prevent the adjustment lever 51 from rotating.

As shown in fig. 2, the end of the connecting sleeve 3 is provided with a horizontal locking hole 32 communicated with the fixing groove 311, a locking bolt 33 penetrates through the locking hole 32, and a threaded hole 541 matched with the locking bolt 33 is formed in the limiting block 55. The limiting block 55 is inserted into the fixing groove 311, the locking hole 32 is opposite to the threaded hole 541, and the locking bolt 33 penetrates through the locking hole 32 and is in threaded connection with the threaded hole 541, so that the limiting block 55 is locked and fixed. The stopper 55 is easy to assemble and disassemble and convenient to replace.

As shown in fig. 2, a fixing hole 521 is opened on the end surface of the adjusting cylinder 52, a circle of locking holes 34 matching with the fixing hole 521 is opened on the end surface of the connecting sleeve 3 around the adjusting hole 31, and a fixing pin 35 inserted into the locking holes 34 penetrates through the fixing hole 521. After the adjusting cylinder 52 adjusts the elastic force of the spring 4, the locking hole 34 is aligned with the fixing hole 521, and the fixing pin 35 is inserted into the locking hole 34 and the fixing hole 521. The fixing pin 35 locks the adjusting cylinder 52, and prevents the operator from touching the adjusting cylinder 52 by mistake, which causes the adjusting cylinder 52 to rotate and affects the elasticity of the spring 4.

The specific implementation process comprises the following steps: an operator adjusts the position of the valve needle 7 by rotating the adjusting screw 6, if the opening 13 is blocked, oil enters the oil inlet 14, and the oil hydraulic valve core 2 is discharged from the oil outlet 16; when the opening 13 is opened, part of the oil is discharged from the drain port 17 and part of the oil flows into the relief chamber 37. After the spring 4 becomes fatigued, the operator can rotate the adjusting cylinder 52 to adjust the elasticity of the spring 4.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a send fuel tap, includes valve body (1), sliding connection has case (2) in valve body (1), the tip of valve body (1) is equipped with adapter sleeve (3), be equipped with spring (4), its characterized in that between adapter sleeve (3) and case (2): adjusting hole (31) have been seted up to the tip that valve body (1) was kept away from in adapter sleeve (3), sliding connection has regulation pole (51) in adjusting hole (31), the outer wall of adapter sleeve (3) is located to rotate at adjusting hole (31) and is connected with regulation section of thick bamboo (52), regulation section of thick bamboo (52) inner circle is equipped with the internal thread, the one end of adjusting pole (51) is stretched out and is adjusted section of thick bamboo (52) and with regulation section of thick bamboo (52) threaded connection, the other end is stretched into and is contradicted with spring (4) in adjusting hole (31).

2. The oil feed valve according to claim 1, wherein: the end part of the adjusting rod (51) facing the spring (4) is fixed with a sealing baffle (53), and the outer ring of the sealing baffle (53) is sleeved with a sealing ring (54).

3. The oil feed valve according to claim 1, wherein: the end part of the adjusting rod (51) facing the spring (4) is provided with a guide hole (511), the end part of the valve core (2) is fixedly provided with a guide rod (22) connected in the guide hole (511) in a sliding manner, and the diameter of the guide hole (511) is larger than that of the guide rod (22).

4. The oil feed valve according to claim 1, wherein: fixed slot (311) have been seted up to regulation hole (31) inner wall, install stopper (55) in fixed slot (311), set up bar-shaped spacing groove (513) on adjusting pole (51), stopper (55) sliding connection is in spacing groove (513).

5. The oil feed valve according to claim 4, wherein: the end part of the connecting sleeve (3) is provided with a horizontal locking hole (32) communicated with the fixing groove (311), a locking bolt (33) penetrates through the locking hole (32), and the limiting block (55) is provided with a threaded hole (541) matched with the locking bolt (33).

6. The oil feed valve according to claim 1, wherein: the end face of the adjusting cylinder (52) is provided with a fixing hole (521), the end face of the connecting sleeve (3) is provided with a circle of locking holes (34) matched with the fixing hole (521) around the adjusting hole (31), and fixing pins (35) inserted into the locking holes (34) penetrate through the fixing holes (521).

7. The oil feed valve according to claim 1, wherein: the connecting sleeve (3) is connected with the valve body (1) through threads, and a sealing ring (36) is sleeved outside the connecting sleeve (3).