CN217815193U

CN217815193U - Overflow valve capable of quickly relieving pressure

Info

Publication number: CN217815193U
Application number: CN202220980528.XU
Authority: CN
Inventors: 许云峰; 盛灿红
Original assignee: Jingjiang Tiantian Machinery Manufacturing Co ltd
Current assignee: Jingjiang Tiantian Machinery Manufacturing Co ltd
Priority date: 2022-04-26
Filing date: 2022-04-26
Publication date: 2022-11-15
Anticipated expiration: 2032-04-26

Abstract

The utility model discloses an overflow valve that can quick pressure release, relate to overflow valve technical field, including last valve body, fixed connection is at the connecting seat on last valve body bottom lateral wall, threaded connection is lower valve body on the connecting seat inside wall and set up the elastic valve core subassembly inside last valve body, sliding connection has middle seat on the inside wall of lower valve body, the valve port has been seted up in running through on the lateral wall of middle seat, the bottom of elastic valve core subassembly offsets tightly with the lateral wall of valve port, the spout has been seted up on the inside wall of going up the valve body, run through on the lateral wall of spout and seted up a plurality of second exports, run through on the lateral wall of valve port and seted up a plurality of openings, a plurality of openings stagger each other with a plurality of second exports, sliding connection has lower disk seat on the inside wall of lower valve body, the disk seat is located the below of middle seat down, the utility model discloses realize multichannel quick pressure release, can be according to pressure condition automatically regulated ability, use through the cooperation pressure release between the double disk seat, cause the damage to equipment when avoiding pressure to be too big.

Description

Overflow valve capable of quickly relieving pressure

Technical Field

The utility model relates to an overflow valve technical field especially relates to an overflow valve that can quick pressure release.

Background

The overflow valve is a hydraulic pressure control valve, mainly plays roles of constant pressure overflow, pressure stabilization, system unloading and safety protection in hydraulic equipment, and is widely applied to an automobile control system;

the existing overflow valve mainly comprises a valve body, a valve seat, a spring and a valve stem, when the pressure in an oil inlet cavity is too large, a medium in the oil inlet cavity can push the valve seat to move, so that the medium in the oil inlet cavity can be discharged through an oil discharge cavity, and for ensuring the pressure stability, the pressure relief speed of the traditional overflow valve is slow, the quick pressure relief can not be carried out when the pressure of equipment is too large, and then the hydraulic control pipeline of a vehicle is easily broken, so that the equipment is damaged, and the practicability is relatively poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the slow shortcoming of traditional overflow valve pressure release speed that exists among the prior art, and the overflow valve that can quick pressure release that proposes.

In order to realize the purpose, the utility model adopts the following technical scheme:

an overflow valve capable of realizing rapid pressure relief comprises an upper valve body, a connecting seat fixedly connected to the side wall of the bottom end of the upper valve body, a lower valve body in threaded connection with the inner side wall of the connecting seat, and an elastic valve core assembly arranged inside the upper valve body, wherein the inner side wall of the lower valve body is connected with an intermediate seat in a sliding manner, the side wall of the intermediate seat is provided with a valve port in a penetrating manner, the bottom end of the elastic valve core assembly is abutted against the side wall of the valve port, the inner side wall of the upper valve body is provided with a sliding groove, the side wall of the sliding groove is provided with a plurality of second outlets in a penetrating manner, the side wall of the valve port is provided with a plurality of through holes in a penetrating manner, the through holes are staggered with the plurality of second outlets, the inner side wall of the lower valve body is provided with a plurality of first outlets, and the side wall of the bottom end of the lower valve body is provided with an inlet.

The above technical solution further comprises:

an upper cavity is formed in the side wall of the upper valve body in a penetrating mode, the elastic valve core assembly comprises a core column fixedly connected to the inner side wall of the upper cavity, a first spring is fixedly connected to the side wall of the bottom end of the core column, an upper valve seat is fixedly connected to the tail end of the first spring, and the bottom end of the upper valve seat is abutted against the side wall of the valve port.

The fixed chimb that is provided with on the top lateral wall of middle seat, the external diameter of chimb is greater than the internal diameter of lower valve body, the chimb laminates mutually with the top lateral wall of lower valve body, the chimb and the inside wall sliding connection of spout.

The side wall of the lower valve body is internally provided with a lower cavity communicated with the inner part of the upper cavity in a penetrating way, and the middle seat and the lower valve seat are both connected on the inner side wall of the lower cavity in a sliding way.

The middle seat and the lower valve seat are tightly attached to the inner side wall of the lower cavity.

The side of the core column opposite to the upper valve seat is fixedly connected with positioning columns, and the first spring is sleeved outside the two positioning columns.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses in, use through the cooperation between first spring, last disk seat, middle seat, second spring, lower disk seat, hole, second export and the opening, when equipment pressure was too big, medium pressure further opened the second export on making the basis that first export was opened, realized multichannel quick pressure release, can be according to pressure condition automatically regulated pressure release ability, use through the cooperation between the double disk seat, avoid pressure to cause the damage to equipment when too big.

Drawings

Fig. 1 is an appearance schematic diagram of an overflow valve capable of rapidly relieving pressure provided by the utility model;

FIG. 2 is a sectional view of an overflow valve with quick pressure relief;

fig. 3 is an enlarged view of a portion a in fig. 2 of an overflow valve capable of rapidly relieving pressure according to the present invention;

fig. 4 is a magnified view of a portion B in fig. 2 of an overflow valve capable of rapidly releasing pressure according to the present invention.

In the figure: 1. an upper valve body; 2. a connecting seat; 3. a lower valve body; 4. an upper cavity; 5. a lower cavity; 6. an inlet; 7. a first outlet; 8. a middle seat; 9. a valve port; 10. a stem; 11. a first spring; 12. an upper valve seat; 13. a positioning column; 14. a lower valve seat; 15. mounting grooves; 16. a pore; 17. a second spring; 18. a chute; 19. a convex edge; 20. a second outlet; 21. a port; 22. and (4) a nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, the utility model provides an overflow valve capable of rapidly relieving pressure, including an upper valve body 1, a connecting seat 2 fixedly connected on the side wall of the bottom end of the upper valve body 1, a lower valve body 3 screwed on the inner side wall of the connecting seat 2 and an elastic valve core assembly arranged inside the upper valve body 1, a middle seat 8 is slidably connected on the inner side wall of the lower valve body 3, a valve port 9 is opened on the side wall of the middle seat 8 in a penetrating manner, the bottom end of the elastic valve core assembly is abutted against the side wall of the valve port 9, an upper cavity 4 is opened in the side wall of the upper valve body 1 in a penetrating manner, a lower cavity 5 communicated with the inside of the upper cavity 4 is opened in the side wall of the lower valve body 3 in a penetrating manner, the elastic valve core assembly comprises a core column 10 fixedly connected on the inner side wall of the upper cavity 4, a first spring 11 is fixedly connected on the side wall of the bottom end of the core column 10, an upper valve seat 12 is fixedly connected with the end of the upper valve seat 12, positioning columns 13 are both fixedly connected on the side wall of the core column 10 opposite to the upper valve seat 12, the upper flange 19 is fixedly connected with a positioning column 13, the inner side wall of the upper flange 19 of the valve body 19, the inner side wall of the valve body 19 is connected with the inner side wall of the lower flange 19, the inner side wall of the valve port 19, the sliding chute 19, the inner side wall of the valve body 19 is connected with the inner side wall of the lower chute 19, the valve body 19, the inner side wall of the valve body 19;

run through on the lateral wall of spout 18 and seted up a plurality of second export 20, run through on the lateral wall of valve port 9 and seted up a plurality of openings 21, a plurality of openings 21 stagger each other with a plurality of second exports 20, sliding connection has lower disk seat 14 on the inside wall of lower valve body 3, middle seat 8 and the equal sliding connection of lower disk seat 14 are on the inside wall of cavity 5 down, middle seat 8, lower disk seat 14 all closely laminates with the inside wall of cavity 5 down, lower disk seat 14 is located the below of middle seat 8, run through on the lateral wall of lower disk seat 14 and seted up hole 16, the effective medium circulation aperture of hole 16 is the same with the aperture of valve port 9, be connected through second spring 17 between lower disk seat 14 and the middle seat 8, mounting groove 15 has been seted up to one side that lower disk seat 14 is close to middle seat 8, the one end that second spring 17 is close to lower disk seat 14 is connected on the mounting groove 15 inner walls, a plurality of having seted up first export 7 on the lateral wall of lower valve body 3, be provided with import 6 on the bottom lateral wall of lower valve body 3.

The working principle is as follows: when the pressure is relatively small, the medium enters the lower valve body 3 through the inlet 6, because the stiffness coefficient of the first spring 11 is large and the stiffness coefficient of the second spring 17 is small, the pressure of the medium can make the lower valve seat 14 slide upwards (in this process, the second spring 17 is compressed adaptively, the aperture of the hole 16 is small, the middle seat 8 and the lower valve seat 14 cannot be filled with the medium quickly), the lower valve seat 14 cancels the plugging of the first outlet 7, the first outlet 7 can be opened automatically, the pressure can be relieved through the first outlet 7, the middle seat 8 is kept stable under the elastic force of the first spring 11, when the pressure is too large, on the basis of the pressure relief of the first outlet 7, on the basis of the sliding of the lower valve seat 14, the space between the middle seat 8 and the lower valve seat 14 is filled with the medium slowly through the hole 16, under the action of the pressure, the middle seat 8 is caused to move upwards (the flange 19 slides in the chute 18), the first spring 11 is compressed, the connection of the second spring 17, the lower valve seat 14 also moves upwards appropriately, when the flange 19 slides to the top end of the upper valve seat 18, the second spring can not slide, the medium can further open the medium to further pass through the opening of the second outlet 21, and can further communicate with the second outlet 12, and the second valve seat, and the medium can further communicate with the second valve seat 12, and further communicate with the first valve seat 12. Therefore, the function of rapid pressure relief when the pressure is too high is realized.

The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.

Claims

1. An overflow valve capable of quickly relieving pressure, which comprises an upper valve body (1), a connecting seat (2) fixedly connected on the side wall of the bottom end of the upper valve body (1), a lower valve body (3) in threaded connection on the inner side wall of the connecting seat (2) and an elastic valve core assembly arranged in the upper valve body (1), it is characterized in that the inner side wall of the lower valve body (3) is connected with a middle seat (8) in a sliding way, a valve port (9) is arranged on the side wall of the middle seat (8) in a penetrating way, the bottom end of the elastic valve core component is tightly propped against the side wall of the valve port (9), the inner side wall of the upper valve body (1) is provided with a chute (18), a plurality of second outlets (20) are arranged on the side wall of the chute (18) in a penetrating way, a plurality of through holes (21) are formed in the side wall of the valve port (9) in a penetrating manner, the through holes (21) and the second outlets (20) are staggered with each other, the inner side wall of the lower valve body (3) is connected with a lower valve seat (14) in a sliding way, the lower valve seat (14) is positioned below the middle seat (8), a pore (16) is arranged on the side wall of the lower valve seat (14) in a penetrating way, the lower valve seat (14) is connected with the middle seat (8) through a second spring (17), a plurality of first outlets (7) are arranged on the side wall of the lower valve body (3), an inlet (6) is arranged on the side wall of the bottom end of the lower valve body (3).

2. The overflow valve capable of rapidly relieving pressure according to claim 1, wherein an upper cavity (4) penetrates through the side wall of the upper valve body (1), the elastic valve core assembly comprises a core column (10) fixedly connected to the inner side wall of the upper cavity (4), a first spring (11) is fixedly connected to the side wall of the bottom end of the core column (10), an upper valve seat (12) is fixedly connected to the tail end of the first spring (11), and the bottom end of the upper valve seat (12) is abutted against the side wall of the valve port (9).

3. The overflow valve capable of rapidly relieving pressure according to claim 1, wherein a convex edge (19) is fixedly arranged on the side wall of the top end of the middle seat (8), the outer diameter of the convex edge (19) is larger than the inner diameter of the lower valve body (3), the convex edge (19) is attached to the side wall of the top end of the lower valve body (3), and the convex edge (19) is in sliding connection with the inner side wall of the sliding groove (18).

4. The overflow valve capable of rapidly relieving pressure according to claim 2, wherein a lower cavity (5) communicated with the inside of the upper cavity (4) penetrates through the side wall of the lower valve body (3), and the middle seat (8) and the lower valve seat (14) are both connected to the inner side wall of the lower cavity (5) in a sliding manner.

5. The overflow valve capable of rapidly relieving pressure according to claim 4, wherein the intermediate seat (8) and the lower valve seat (14) are tightly attached to the inner side wall of the lower cavity (5).

6. The overflow valve capable of rapidly relieving pressure according to claim 2, wherein one side of the core column (10) opposite to the upper valve seat (12) is fixedly connected with positioning columns (13), and the first spring (11) is sleeved outside the two positioning columns (13).