CN211450298U

CN211450298U - Check valve for electric pressure relief type grease lubricating pump

Info

Publication number: CN211450298U
Application number: CN201922283240.8U
Authority: CN
Inventors: 傅云尧; 曾奇有
Original assignee: Zhuji Huabei Lubrication Machinery Co ltd
Current assignee: Zhuji Huabei Lubrication Machinery Co ltd
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-09-08
Anticipated expiration: 2029-12-18

Abstract

The utility model discloses a check valve for an electric pressure relief type grease lubrication pump, which comprises a pump body, a motor, an oil storage tank, a cylinder sleeve, a check valve and an automatic unloading valve, wherein one end of the pump body is fixed with the motor, the end of the pump body far away from the motor is fixed with the oil storage tank, the inner wall of the pump body is fixed with the cylinder sleeve, the end of the inner wall of the pump body close to the cylinder sleeve is fixed with the check valve, the end of the inner wall of the pump body close to the check valve is fixed with the automatic unloading valve, the check valve comprises a spring seat, a chute, a slide rod, a cone valve core, a rubber ring, a heat ring, a sleeve close to the rubber ring, the end of the inner wall of the pump body close to the automatic unloading valve is fixed with the spring seat, the chute is, the sealing effect is greatly improved.

Description

Check valve for electric pressure relief type grease lubricating pump

Technical Field

The utility model relates to a grease lubrication pump technical field, concretely relates to electronic pressure relief formula check valve for grease lubrication pump.

Background

A lubrication pump is a type of lubrication apparatus that supplies lubricant to a lubrication site. Mechanical equipment needs regular lubrication, and the main mode of the prior lubrication is to perform manual lubrication, such as commonly-known butter-making, after reaching a certain maintenance period according to the working condition of the equipment. The lubrication pump may make such maintenance easier. The lubricating pump is divided into a manual lubricating pump and an electric lubricating pump, the grease lubricating pump needs a one-way valve to block lubricating oil from flowing back when supplying oil to mechanical equipment, the sealing effect of the existing one-way valve is poor when the one-way valve is used, and therefore the one-way valve for the electric pressure relief type grease lubricating pump is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art, and provides a one-way valve for an electric pressure relief type grease lubricating pump with good sealing effect, which comprises a pump body, a motor, an oil storage tank, a cylinder sleeve, a one-way valve and an automatic unloading valve, wherein one end of the pump body is fixed with the motor, one end of the pump body, which is far away from the motor, is fixed with the oil storage tank, the inner wall of the pump body is fixed with the cylinder sleeve, one end, which is close to the cylinder sleeve, of the inner wall of the pump body is fixed with the one-way valve, one end, which is close to the one-way valve, of the inner wall of the pump body is fixed with the automatic unloading valve, the one end, which is close to the one-way valve, of the inner wall of the pump body is fixed with a spring seat, the inner wall of the spring seat is provided with the, the outer side of the conical valve core is sleeved with a rubber ring, one end, close to the rubber ring, of the sliding rod is sleeved with a hot ring, a spring groove is formed in the inner wall of the sliding groove, a sealing spring is sleeved on the outer side of the sliding rod, one end of the sealing spring is fixedly connected with the spring groove, and the other end of the sealing spring is fixedly connected with the hot ring.

Preferably, one end of the inner wall of the sliding chute, which is close to the automatic unloading valve, is provided with an oil unloading hole.

Preferably, one end of the spring seat, which is close to the automatic unloading valve, is provided with a sealing groove matched with the automatic unloading valve.

Preferably, one end of the cylinder sleeve close to the cone valve core is arranged in a cone shape matched with the cone valve core.

Preferably, one end of the sliding rod, which is close to the sliding groove, is provided with a chamfer.

The utility model has the advantages that:

when the device is used, lubricating oil is extruded towards the direction of the one-way valve in the cylinder sleeve through the plunger, so that the lubricating oil pushes the cone valve core to move towards the direction of the spring seat and extrude the sealing spring, further the cone valve core is separated from the cylinder sleeve, the grease can flow into one end of the pump body close to the one-way valve to enter an oil conveying pipeline, when the oil injection is stopped or the plunger is recovered, the pressure borne by the cone valve core disappears, further the elastic force of the sealing spring pushes the hot ring to move, further the sliding rod and the cone valve core are pushed to move towards the direction of the cylinder sleeve, so that the cone valve core blocks the cylinder sleeve and prevents the lubricating oil from flowing back, the rubber ring is sleeved outside the cone valve core, and the hot ring also extrudes the rubber ring when the cone valve core is pushed to move, so that the rubber ring is tightly attached to the inner wall of the cylinder sleeve, the sealing effect is greatly improved.

Drawings

The invention will now be described, by way of example, with reference to the accompanying drawings, in which:

FIG. 1 is a schematic sectional view of the whole structure of the present invention;

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

In the figure: 1. a pump body; 2. a motor; 3. an oil storage tank; 4. a cylinder liner; 5. a one-way valve; 6. an automatic unloading valve; 7. a spring seat; 8. a chute; 9. a slide bar; 10. a cone valve core; 11. a rubber ring; 12. hot coiling; 13. a spring slot; 14. a seal spring; 15. an oil discharge hole; 16. sealing the groove.

Detailed Description

Any feature disclosed in this specification may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

As shown in fig. 1-2, the check valve for the electric pressure relief type grease lubrication pump comprises a pump body 1, a motor 2, an oil storage tank 3, a cylinder sleeve 4, a check valve 5 and an automatic unloading valve 6, wherein the motor 2 is fixed at one end of the pump body 1, the oil storage tank 3 is fixed at one end of the pump body 1, which is far away from the motor 2, the cylinder sleeve 4 is fixed on the inner wall of the pump body 1, the check valve 5 is fixed at one end of the inner wall of the pump body 1, which is close to the cylinder sleeve 4, the automatic unloading valve 6 is fixed at one end of the inner wall of the pump body 1, which is close to the check valve 5, the check valve 5 comprises a spring seat 7, a chute 8, a slide rod 9, a cone valve core 10, a rubber ring 11, a hot ring 12, a spring groove 13 and a sealing spring 14, the spring seat 7 is fixed at one end of the inner wall, a conical valve core 10 is fixed at one end, far away from the spring seat 7, of the sliding rod 9, a rubber ring 11 is sleeved outside the conical valve core 10, a hot ring 12 is sleeved at one end, close to the rubber ring 11, of the sliding rod 9, a spring groove 13 is fixed on the inner wall of the sliding groove 8, a sealing spring 14 is sleeved outside the sliding rod 9, one end of the sealing spring 14 is fixedly connected with the spring groove 13, and the other end of the sealing spring 14 is fixedly connected with the hot ring 12.

An oil unloading hole 15 is formed in one end, close to the automatic unloading valve 6, of the inner wall of the sliding groove 8, so that lubricating oil can be conveniently decompressed and returned by opening the automatic unloading valve 6 through the oil unloading hole 15 when the oil pressure is overlarge.

One end of the spring seat 7 close to the automatic unloading valve 6 is provided with a sealing groove 16 matched with the automatic unloading valve 6, so that the automatic unloading valve 6 is conveniently matched with the spring seat 7.

One end of the cylinder sleeve 4 close to the cone valve core 10 is arranged in a conical shape matched with the cone valve core 10, so that the cylinder sleeve 4 and the cone valve core 10 are tightly matched and sealed conveniently.

And one end of the sliding rod 9, which is close to the sliding chute 8, is provided with a chamfer, so that the sliding rod 9 can slide into the sliding chute 8 conveniently.

The working principle of the specific embodiment is as follows: when the lubricating oil anti-backflow device is used, lubricating oil is extruded towards the direction of the one-way valve 5 in the cylinder sleeve 4 through the plunger, so that the lubricating oil pushes the cone valve core 10 to move towards the spring seat 7 and extrude the sealing spring 14, further the cone valve core 10 is separated from the cylinder sleeve 4, grease can flow into one end, close to the one-way valve 5, of the pump body 1 to enter an oil conveying pipeline, when oil injection is stopped or the plunger is recovered, pressure borne by the cone valve core 10 disappears, further the elastic force of the sealing spring 14 pushes the hot ring 12 to move, further the sliding rod 9 and the cone valve core 10 are pushed to move towards the direction of the cylinder sleeve 4, the cone valve core 10 blocks the cylinder sleeve 4 to prevent backflow of the lubricating oil, the rubber ring 11 is sleeved outside the cone valve core 10, the hot ring 12 pushes the rubber ring 11 when the cone valve core 10 is pushed to move, so that the rubber ring 11 is tightly attached, the device has the advantages that the conical valve core 10 and the rubber ring 11 are used for carrying out soft and hard sealing on the cylinder sleeve 4, and the sealing effect is greatly improved.

The present invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification, and to any novel method or process steps or any novel combination of features disclosed.

Claims

1. The utility model provides an electronic pressure relief formula check valve for grease lubrication pump, includes the pump body (1), motor (2), oil storage tank (3), cylinder liner (4), check valve (5) and automatic unloading valve (6), its characterized in that: the pump is characterized in that a motor (2) is fixed at one end of the pump body (1), an oil storage tank (3) is fixed at one end, far away from the motor (2), of the pump body (1), a cylinder sleeve (4) is fixed on the inner wall of the pump body (1), a one-way valve (5) is fixed at one end, close to the cylinder sleeve (4), of the inner wall of the pump body (1), an automatic unloading valve (6) is fixed at one end, close to the one-way valve (5), of the inner wall of the pump body (1), the one-way valve (5) comprises a spring seat (7), a sliding groove (8), a sliding rod (9), a cone valve core (10), a rubber ring (11), a hot ring (12), a spring groove (13) and a sealing spring (14), the spring seat (7) is fixed at one end, close to the automatic unloading valve (6), of the inner wall of the pump body, the sealing device is characterized in that a conical valve core (10) is fixed at one end, away from the spring seat (7), of the sliding rod (9), a rubber ring (11) is sleeved on the outer side of the conical valve core (10), a hot ring (12) is sleeved at one end, close to the rubber ring (11), of the sliding rod (9), a spring groove (13) is fixed on the inner wall of the sliding groove (8), a sealing spring (14) is sleeved on the outer side of the sliding rod (9), one end of the sealing spring (14) is fixedly connected with the spring groove (13), and the other end of the sealing spring (14) is fixedly connected with the hot ring (12).

2. The check valve for the electric pressure relief type grease lubrication pump according to claim 1, wherein: and an oil unloading hole (15) is formed in one end, close to the automatic unloading valve (6), of the inner wall of the sliding chute (8).

3. The check valve for the electric pressure relief type grease lubrication pump according to claim 1, wherein: and one end of the spring seat (7) close to the automatic unloading valve (6) is provided with a sealing groove (16) matched with the automatic unloading valve (6).

4. The check valve for the electric pressure relief type grease lubrication pump according to claim 1, wherein: one end of the cylinder sleeve (4) close to the cone valve core (10) is arranged in a cone shape matched with the cone valve core (10).

5. The check valve for the electric pressure relief type grease lubrication pump according to claim 1, wherein: and a chamfer is arranged at one end of the sliding rod (9) close to the sliding chute (8).