CN212774991U

CN212774991U - Pilot-operated type hydraulic control one-way valve with special pressure guide ratio

Info

Publication number: CN212774991U
Application number: CN202020824107.9U
Authority: CN
Inventors: 陆林海
Original assignee: Shanghai Shangwei Machinery Technology Co ltd
Current assignee: Shanghai Shangwei Machinery Technology Co ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2021-03-23
Anticipated expiration: 2030-05-15

Abstract

The utility model discloses a special pressure ratio's guide's pilot-operated formula liquid accuse check valve, including mounting panel, coupling assembling and valve body subassembly, the top of mounting panel is provided with coupling assembling, one side that coupling assembling is relative is provided with the valve body subassembly, coupling assembling includes limiting plate, pivot, set screw, connecting rod, snap ring and lockplate, the top fixed mounting of mounting panel has the limiting plate, the limiting plate inboard surface is provided with the pivot, the both ends fixed mounting of pivot has set screw, the fixed surface of pivot installs the connecting rod, the top fixed mounting of connecting rod has the snap ring. The utility model discloses a coupling assembling that sets up makes this check valve can effectively prevent to connect the department to take place to break away from when using to guarantee the normal performance of check valve body, and improve through the structure to the inside of commonly used check valve and make it reliably stop when using, and its simple structure.

Description

Pilot-operated type hydraulic control one-way valve with special pressure guide ratio

Technical Field

The utility model relates to a check valve technical field specifically is a special pilot operated type liquid accuse check valve that leads pressure ratio.

Background

The check valve is commonly called as a check valve, fluid can only flow along the water inlet, and the medium at the water outlet cannot flow back. Check valves are also known as check valves or check valves. For preventing reverse flow of oil in hydraulic systems or for preventing reverse flow of compressed air in pneumatic systems. The one-way valve has a straight-through type and a right-angle type. The straight-through one-way valve is installed on the pipeline by threaded connection. The right-angle check valve has three forms of threaded connection, plate connection and flange connection.

The load of the vertical lifting mechanism of the current walking mechanical hydraulic system is larger, the prior standard pressure guide ratio hydraulic lock can not be reliably stopped, and the phenomenon of separation of a joint can occur in the use process, so that the normal use of the vertical lifting mechanism is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a special pressure ratio's guide's pilot-operated formula liquid accuse check valve to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the pilot-operated type hydraulic control one-way valve with the special pressure guide ratio comprises a mounting plate, a connecting assembly and a valve body assembly, wherein the connecting assembly is arranged at the top of the mounting plate, and the valve body assembly is arranged on one side, opposite to the connecting assembly, of the mounting plate.

Coupling assembling includes limiting plate, pivot, set screw, connecting rod, snap ring and lockplate, the top fixed mounting of mounting panel has the limiting plate, the inboard surface of limiting plate is provided with the pivot, the both ends fixed mounting of pivot has set screw, the fixed surface of pivot installs the connecting rod, the top fixed mounting of connecting rod has the snap ring, the top fixed mounting of snap ring has the lockplate.

The valve body assembly comprises a one-way valve body, joints, discharge ports, a one-way valve core and a pilot valve core, wherein the top of the mounting plate is provided with the one-way valve body, the joints are arranged at two ends of the one-way valve body, the discharge ports are formed in the top of the one-way valve body, the one-way valve core is arranged in the one-way valve body, and the pilot valve core is arranged on one side, opposite to the one-way valve core, of the one-way.

Preferably, the mounting plate is provided with a mounting hole, and the check valve body is fixedly mounted on the top surface of the mounting plate through the mounting hole and a mounting screw.

Preferably, the limiting plate is internally provided with a through hole matched with the fixing screw, and the rotating shaft is fixedly arranged on the inner side surface of the limiting plate through the fixing screw.

Preferably, the top of the clamping ring is fixedly provided with a locking plate, and a locking hole is formed in the locking plate.

Preferably, the snap ring is divided into two parts and is fixedly installed through the opened locking hole and the screw.

Preferably, two sets of one-way valve cores are arranged inside the one-way valve body, and a pilot valve core is arranged on one side, opposite to the two sets of one-way valve cores.

Compared with the prior art, the beneficial effects of the utility model are that: this pilot-operated formula liquid accuse check valve of special pressure ratio makes this check valve can effectively prevent to connect the department to take place to break away from when using through the coupling assembling that sets up to guarantee the normal performance of check valve body, and improve through the structure to the inside of commonly used check valve and make its reliable stop when using, and its simple structure has wide development space and higher spreading value.

Drawings

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

fig. 2 is a schematic view of a partial structure of the connection assembly of the present invention;

FIG. 3 is a schematic view of the internal structure of the check valve body of the present invention;

fig. 4 is a side view of the check valve body of the present invention.

In the figure: 1. mounting a plate; 2. a connecting assembly; 201. a limiting plate; 202. a rotating shaft; 203. a set screw; 204. a connecting rod; 205. a snap ring; 206. a locking plate; 3. a valve body assembly; 301. a check valve body; 302. a joint; 303. an outlet port; 304. a one-way valve core; 305. a pilot valve spool.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides an embodiment: the utility model provides a special pressure ratio's guide's pilot-operated formula liquid accuse check valve, includes mounting panel 1, coupling assembling 2 and valve body subassembly 3, and the top of mounting panel 1 is provided with coupling assembling 2, and the 2 relative one sides of coupling assembling are provided with valve body subassembly 3, mounting panel 1 seted up the mounting hole, and check valve body 301 passes through the mounting hole and mounting screw fixed mounting is on the top surface of mounting panel 1.

The connecting assembly 2 comprises a limiting plate 201, a rotating shaft 202, a fixing screw 203, a connecting rod 204, a snap ring 205 and a locking plate 206, the limiting plate 201 is fixedly installed at the top of the mounting plate 1, the rotating shaft 202 is arranged on the inner side surface of the limiting plate 201, the fixing screw 203 is fixedly installed at two ends of the rotating shaft 202, a through hole matched with the fixing screw 203 is formed in the limiting plate 201, the rotating shaft 202 is fixedly installed on the inner side surface of the limiting plate 201 through the fixing screw 203, the connecting rod 204 is fixedly installed on the surface of the rotating shaft 202, the snap ring 205 is fixedly installed at the top of the connecting rod 204, the snap ring 205 is divided into two parts and fixedly installed through the arranged locking hole and the screw, the locking plate 206 is fixedly installed at the top of the snap ring 205, the locking plate 206 is fixedly installed in the locking hole, and, the connecting assembly 2 can effectively prevent the joint 302 from being separated when the check valve is used, so that the normal use performance of the check valve body 301 is ensured.

The valve body assembly 3 comprises a one-way valve body 301, joints 302, a discharge port 303, a one-way valve core 304 and a pilot valve core 305, the top of the mounting plate 1 is provided with the one-way valve body 301, the joints 302 are arranged at two ends of the one-way valve body 301, the discharge port 303 is arranged at the top of the one-way valve body 301, the one-way valve core 304 is arranged inside the one-way valve body 301, the pilot valve core 305 is arranged at one side opposite to the one-way valve core 304, two sets of the one-way valve cores 304 are arranged inside the one-way valve body 301, the pilot valve core 305 is arranged at one side opposite to the two sets of the one-way valve cores 304, and the pilot type check valve with the special pilot pressure ratio can be reliably stopped when the pilot type pilot.

The working principle is as follows: according to the structure shown in fig. 1, the snap ring 205 is fixedly installed on the inner side surface of the limit plate 201 through the fixing screw 203, and the snap ring 205 is fixedly installed on the surface of the joint 302 and the surface of the pipeline through the locking plate 206 and the locking screw, so that the secondary fixing function is achieved, the snap ring is prevented from being separated, the service performance of the check valve is ensured, the internal structure of the common check valve is improved, so that the check valve can be stopped reliably during use, the structure is simple, and the check valve has wide development space and high popularization value.

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 scope of the present invention. Accordingly, the embodiments of the present invention are exemplary, and not limiting. The scope of the invention is indicated by the appended claims rather than by the foregoing description, and all changes that 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.

Claims

1. The utility model provides a special pressure ratio's guide's pilot-operated formula liquid accuse check valve, includes mounting panel (1), coupling assembling (2) and valve body subassembly (3), its characterized in that: the top of the mounting plate (1) is provided with a connecting assembly (2), and one side, opposite to the connecting assembly (2), is provided with a valve body assembly (3);

the connecting assembly (2) comprises a limiting plate (201), a rotating shaft (202), a fixing screw (203), a connecting rod (204), a clamping ring (205) and a locking plate (206), the limiting plate (201) is fixedly mounted at the top of the mounting plate (1), the rotating shaft (202) is arranged on the inner side surface of the limiting plate (201), the fixing screw (203) is fixedly mounted at two ends of the rotating shaft (202), the connecting rod (204) is fixedly mounted on the surface of the rotating shaft (202), the clamping ring (205) is fixedly mounted at the top of the connecting rod (204), and the locking plate (206) is fixedly mounted at the top end of the clamping ring (205);

the valve body assembly (3) comprises a one-way valve body (301), a joint (302), a discharge port (303), a one-way valve core (304) and a pilot valve core (305), wherein the one-way valve body (301) is arranged at the top of the mounting plate (1), the joints (302) are arranged at two ends of the one-way valve body (301), the discharge port (303) is formed in the top of the one-way valve body (301), the one-way valve core (304) is arranged inside the one-way valve body (301), and the pilot valve core (305) is arranged on one side, opposite to the one-way valve core (304).

2. The pilot-operated pilot-controlled check valve with a special pilot pressure ratio as claimed in claim 1, wherein: the mounting plate (1) is provided with a mounting hole, and the one-way valve body (301) is fixedly mounted on the top surface of the mounting plate (1) through the mounting hole and a mounting screw.

3. The pilot-operated pilot-controlled check valve with a special pilot pressure ratio as claimed in claim 1, wherein: the limiting plate (201) is internally provided with a through hole matched with the fixing screw (203), and the rotating shaft (202) is fixedly arranged on the inner side surface of the limiting plate (201) through the fixing screw (203).

4. The pilot-operated pilot-controlled check valve with a special pilot pressure ratio as claimed in claim 1, wherein: the top of snap ring (205) is all fixed mounting has lockplate (206), and the inside of lockplate (206) has seted up the locking hole.

5. The pilot-operated pilot-controlled check valve with a special pilot pressure ratio as claimed in claim 1, wherein: the snap ring (205) is divided into two parts and is fixedly installed through the arranged locking hole and the screw.

6. The pilot-operated pilot-controlled check valve with a special pilot pressure ratio as claimed in claim 1, wherein: two sets of one-way valve cores (304) are arranged inside the one-way valve body (301), and a pilot valve core (305) is arranged on one side, opposite to the two sets of one-way valve cores (304).