CN217633188U

CN217633188U - Convenient screw thread proportion overflow cartridge valve who adjusts

Info

Publication number: CN217633188U
Application number: CN202221382657.5U
Authority: CN
Inventors: 陆林海; 王澄; 曾祥旭
Original assignee: Shanghai Shangwei Machinery Technology Co ltd
Current assignee: Shanghai Shangwei Machinery Technology Co ltd
Priority date: 2022-06-02
Filing date: 2022-06-02
Publication date: 2022-10-21
Anticipated expiration: 2032-06-02

Abstract

The utility model discloses a conveniently adjusted screw thread proportion overflow cartridge valve, which belongs to the field of hydraulic transmission, and comprises a sleeve pipe assembly and a threaded connection seat, wherein the threaded connection seat is integrally formed on one end surface of the sleeve pipe assembly, one end of the inner cavity of the sleeve pipe assembly is in threaded connection with a core sleeve, the core sleeve is provided with a liquid inlet on one end surface of the sleeve pipe assembly, a plurality of groups of liquid discharging holes are annularly arranged on the middle surface of the core sleeve at equal intervals, the inner cavity of one end of the core sleeve, which is close to the sleeve pipe assembly, is movably inserted with an adjusting rod, the inner cavity of one end of the sleeve pipe assembly, which is far away from the threaded connection seat, is movably inserted with an adjusting screw rod, one end of the adjusting screw rod is connected with a spring, and one end of the adjusting rod is movably connected with an armature; this is novel need carry out the pressure release with the in-process that solves current screw thread proportion overflow cartridge valve and using, inconveniently adjusts pressure release pressure, and the oil storage volume in the cartridge valve is fixed, can't carry out the problem adjusted to the oil storage volume according to the user demand.

Description

Convenient screw thread proportion overflow cartridge valve who adjusts

Technical Field

The utility model relates to a hydraulic transmission field, more specifically say, relate to a screw thread proportion overflow cartridge valve of convenient regulation.

Background

The proportional overflow valve is a valve which changes the opening size of the valve according to the change size of the control analog quantity, and the common overflow valves are the same as the proportional overflow valves and are provided with a valve core, wherein one end of the valve core is the pressure generated by the hydraulic oil, and the other end of the valve core is mechanical force. The common overflow valve adjusts the hydraulic pressure by adjusting the spring force. The proportional overflow valve directly generates thrust by an electromagnet, the thrust is acted on a valve core, the input voltage on the electromagnet can be changed between 0 and 24 volts, and the generated thrust is changed along with the change of the input voltage, so that the continuously changed hydraulic pressure is obtained.

Found by patent search, the publication number: CN112065795B, the device comprises a valve block and at least two threaded cartridge valves; the valve block is of a two-way, three-way or four-way plug-in type valve body structure and is provided with a plug-in valve hole, an internal flow passage and a connecting oil port, wherein the threaded plug-in valve is plugged in the plug-in valve hole, the connecting oil port is connected with an external oil path, and the connecting oil port is communicated with the threaded plug-in valve and the internal flow passage. The threaded cartridge valve group can further reduce the installation size, achieve higher integration level and use convenience, reduce the processing requirement and difficulty of the valve body and reduce the cost of the whole valve group, but the conventional threaded proportional overflow cartridge valve needs to be decompressed in the use process, the decompression pressure is inconvenient to adjust, the oil storage amount in the cartridge valve is fixed, and the oil storage amount cannot be adjusted according to the use requirement.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

Problem to exist among the prior art, an object of the utility model is to provide a convenient screw thread proportion overflow cartridge valve who adjusts, through rotatory adjusting screw, adjusting screw can be twisted into the regulation pole inner chamber under surperficial threaded effect, thereby can realize compressing the spring, make the spring have stronger holding power, the oil pressure of core cover inner chamber will need bigger strength when ejecting with the cone valve core, thereby realize the regulation to the oil pressure, through swivel nut, nut one end can extrude the arch of regulating lever one end, thereby make the regulation pole inject sleeve pipe subassembly inner chamber, can adjust the storage space of sleeve pipe subassembly inner chamber fluid, the realization is adjusted the batch oil tank of sleeve pipe subassembly, in-process with solving current screw thread proportion overflow cartridge valve and using needs to carry out the pressure release, inconvenient regulation to pressure release pressure, and the oil storage volume in the cartridge valve is fixed, can't adjust the problem to the volume according to the user demand.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

The utility model provides a convenient screw thread proportion overflow cartridge valve who adjusts, includes thimble assembly and threaded connection seat, thimble assembly one end surface integrated into one piece has the threaded connection seat, thimble assembly inner chamber one end threaded connection has the core cover, the core cover is equipped with the inlet with the one end surface of thimble assembly, core cover middle part surface equidistance encircles and is equipped with a plurality of groups outage, the core cover is close to thimble assembly one end inner chamber activity and is equipped with the cone valve core, the one end inner chamber activity of thimble assembly keeping away from the threaded connection seat is pegged graft and is had the regulation pole, it has adjusting screw to adjust pole inner chamber threaded connection, adjusting screw one end is connected with the spring, it has armature to adjust pole one end swing joint, spring one end is pegged graft with armature inner chamber and is linked to each other, it is equipped with the nut to adjust pole one end surface swing joint, nut one end links to each other with thimble assembly inner wall screw, and the arch of adjusting pole one end contacts.

Furthermore, one end of the armature far away from the spring is in contact with one end of the cone valve core.

Furthermore, a gasket is arranged at the joint of the armature and the adjusting rod.

Furthermore, one side of the liquid discharge hole is sleeved with a special-shaped sealing ring.

Furthermore, the surface of one side of the threaded connecting seat is sleeved with a first O-shaped ring.

Furthermore, the outer wall surface of the adjusting rod is sleeved with a third O-shaped ring, and the outer wall surface of the adjusting screw is sleeved with a second O-shaped ring.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

(1) This technical scheme is through rotatory adjusting screw, and adjusting screw can be twisted into the regulation pole inner chamber under the effect of surface screw thread to can realize compressing the spring, make the spring have stronger holding power, the oil pressure of core cover inner chamber will need bigger strength when ejecting with the awl case, thereby realize the regulation to the oil pressure.

(2) Through swivel nut, nut one end can extrude the arch of adjusting lever one end to make the regulation pole inject the thimble assembly inner chamber, can adjust the storage space of thimble assembly inner chamber fluid, realize adjusting the batch oil tank of thimble assembly.

Drawings

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

fig. 2 is a schematic sectional view of the present invention.

The numbering in the figures illustrates:

1. a cannula assembly; 2. adjusting a rod; 3. adjusting the screw rod; 4. a cone valve core; 5. an armature; 6. a core sleeve; 7. a spring; 8. a nut; 9. a gasket; 10. a first O-shaped ring; 11. a second O-shaped ring; 12. a special-shaped sealing ring; 13. a third O-shaped ring; 14. a liquid inlet; 15. a drain hole; 16. a threaded connection base; 17. and (4) an overflow pipe.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

Example (b):

referring to fig. 1-2, a thread proportion overflow cartridge valve convenient to adjust comprises a sleeve assembly 1 and a thread connection seat 16, the thread connection seat 16 is integrally formed on one end surface of the sleeve assembly 1, one end of an inner cavity of the sleeve assembly 1 is in thread connection with a core sleeve 6, a liquid inlet 14 is formed in one end surface of the core sleeve 6 and the sleeve assembly 1, a plurality of groups of liquid outlet holes 15 are annularly formed in the middle surface of the core sleeve 6 at equal intervals, a cone valve core 4 is movably arranged in an inner cavity of one end of the core sleeve 6 close to the sleeve assembly 1, an adjusting rod 2 is movably inserted in an inner cavity of one end of the sleeve assembly 1 far away from the thread connection seat 16, an inner cavity of the adjusting rod 2 is in thread connection with an adjusting screw 3, one end of the adjusting screw 3 is connected with a spring 7, one end of the adjusting rod 2 is movably connected with an armature 5, one end of the spring 7 is connected with the inner cavity of the armature 5 in an inserting manner, a nut 8 is movably sleeved on one end surface of the adjusting rod 2, one end of the nut 8 is in thread connection with the inner wall of the sleeve assembly 1, and one end of the nut 8 is in contact with a protrusion at one end of the adjusting rod 2.

Referring to fig. 1 and 2, one end of the armature 5 away from the spring 7 is in contact with one end of the cone valve core 4, and when the cone valve core 4 is ejected, the spring 7 can be compressed by the armature 5.

Referring to fig. 1 and 2, a gasket 9 is arranged at the joint of the armature 5 and the adjusting rod 2, and the armature 5 and the adjusting rod 2 are stressed more uniformly when being driven by the gasket 9.

Referring to fig. 1 and 2, a profiled sealing ring 12 is sleeved on one side of the liquid discharge hole 15, and the surface of the core sleeve 6 contacts with the inner wall of the installation device through the profiled sealing ring 12, so that one end of the core sleeve 6 can be connected with the installation device in a sealing manner through the profiled sealing ring 12.

Referring to fig. 1 and 2, a first O-ring 10 is sleeved on a surface of one side of the threaded connection seat 16.

Referring to fig. 1 and 2, the outer wall surface of the adjusting rod 2 is sleeved with a third O-ring 13, the outer wall surface of the adjusting screw rod 3 is sleeved with a second O-ring 11, the joint of the inner wall of the nut 8 and the outer wall of the adjusting rod 2 can be sealed through the third O-ring 13, and the joint of the outer wall of the adjusting screw rod 3 and the inner wall of the adjusting rod 2 can be sealed through the second O-ring 11.

When in use: one end of the sleeve assembly 1 can be connected to a mounting device by a screw connection socket 16, and after the sleeve assembly 1 is mounted, one end of the core sleeve 6 is inserted into the inner cavity of the installation equipment, the surface of the core sleeve 6 is sleeved with a special-shaped sealing ring 12, the surface of the core sleeve 6 is contacted with the inner wall of the installation equipment through the special-shaped sealing ring 12, so that one end of the core sleeve 6 can be connected with the installation equipment in a sealing way through the special-shaped sealing ring 12, the threaded connecting seat 16 and the installation equipment can be sealed through the first O-shaped ring 10, oil enters the core sleeve 6 through the liquid inlet 14, the oil is discharged through the liquid discharge hole 15, when the oil discharge pressure of the liquid discharge hole 15 is increased, the pressure in the cavity of the core sleeve 6 is increased, thereby ejecting the cone valve core 4, one end of the cone valve core 4 is contacted with the armature 5, one end of the armature 5 far away from the cone valve core 4 is inserted with the spring 7, the cone valve core 4 can compress the spring 7 after being pushed out, the oil liquid in the core sleeve 6 can enter the inner cavity of the sleeve pipe assembly 1 through the connecting gap between the cone valve core 4 and the sleeve pipe assembly 1, after the inner cavity of the sleeve pipe assembly 1 is filled, the oil liquid is discharged through the overflow pipe 17, can avoid damage to the cartridge valve caused by overlarge oil pressure, can improve the protection of the cartridge valve, the inner cavity of the adjusting rod 2 is in threaded connection with an adjusting screw rod 3, by rotating the adjusting screw rod 3, the adjusting screw rod 3 can be screwed into the inner cavity of the adjusting rod 2 under the action of the surface thread, thereby realizing the compression of the spring 7, leading the spring 7 to have stronger supporting force, requiring larger force when the oil pressure in the inner cavity of the core sleeve 6 ejects the conical valve core 4, thereby realizing the adjustment of the oil pressure, one end of the nut 8 can extrude the bulge at one end of the adjusting rod 2 by rotating the nut 8, thereby the adjusting rod 2 is inserted into the inner cavity of the sleeve assembly 1, and the storage space of the oil liquid in the inner cavity of the sleeve assembly 1 can be adjusted.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the protection scope of the present invention by replacing or changing the technical solution and the modified concept of the present invention within the technical scope of the present invention.

Claims

1. The utility model provides a convenient screw thread proportion overflow cartridge valve who adjusts, includes sleeve assembly (1) and threaded connection seat (16), sleeve assembly (1) one end surface integrated into one piece has threaded connection seat (16), its characterized in that: thimble assembly (1) inner chamber one end threaded connection has core cover (6), core cover (6) is equipped with inlet (14) with the one end surface of thimble assembly (1), core cover (6) middle part surface equidistance encircles and is equipped with a plurality of flowing back holes (15) of group, core cover (6) are close to thimble assembly (1) one end inner chamber activity and are equipped with conical valve core (4), the one end inner chamber activity of keeping away from threaded connection seat (16) of thimble assembly (1) is pegged graft and is had regulation pole (2), it has adjusting screw (3) to adjust pole (2) inner chamber threaded connection, adjusting screw (3) one end is connected with spring (7), it has armature (5) to adjust pole (2) one end swing joint, spring (7) one end is pegged graft with armature (5) inner chamber and is continuous, it is equipped with nut (8) to adjust pole (2) one end surface movable sleeve, nut (8) one end links to each other with thimble assembly (1) inner wall screw thread, and nut (8) one end contacts with the arch of adjusting pole (2) one end, armature (5) inner chamber is equipped with overflow pipe (17).

2. The adjustable threaded proportional overflow cartridge valve of claim 1, wherein: one end of the armature iron (5) far away from the spring (7) is contacted with one end of the cone valve core (4).

3. The adjustable threaded proportional overflow cartridge valve of claim 1, wherein: and a gasket (9) is arranged at the joint of the armature (5) and the adjusting rod (2).

4. The adjustable threaded proportional overflow cartridge valve of claim 1, wherein: and one side of the liquid discharge hole (15) is sleeved with a special-shaped sealing ring (12).

5. The adjustable threaded proportional overflow cartridge valve of claim 1, wherein: the surface of one side of the threaded connecting seat (16) is sleeved with a first O-shaped ring (10).

6. The adjustable threaded proportional overflow cartridge valve of claim 1, wherein: the outer wall surface of the adjusting rod (2) is sleeved with a third O-shaped ring (13), and the outer wall surface of the adjusting screw rod (3) is sleeved with a second O-shaped ring (11).