CN213331784U

CN213331784U - Oil circuit system of hydraulic cylinder body in hydraulic tool

Info

Publication number: CN213331784U
Application number: CN202022235636.8U
Authority: CN
Inventors: 赵晨徽
Original assignee: Yuhuan Xiongzhou Tools Co ltd
Current assignee: Yuhuan Xiongzhou Tools Co ltd
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2021-06-01
Anticipated expiration: 2030-10-09

Abstract

The utility model provides an oil piping system of hydraulic cylinder body among hydraulic tool belongs to hydraulic tool technical field. It has solved the problem that current hydraulic cylinder body replacement cost is high and the pressure is slow. The hydraulic tool comprises a clamp body with a working cavity and a hydraulic mechanism matched with the clamp body, wherein the hydraulic mechanism consists of a hydraulic cylinder main body with a movable handle and a fixed handle with an oil storage cavity, the hydraulic cylinder main body is internally provided with a movable cavity for the movable handle to work, the hydraulic cylinder main body is internally provided with an oil suction channel, an oil supply channel and an oil return channel, the oil suction channel is communicated with the movable cavity and the oil storage cavity in the hydraulic cylinder main body, oil in the oil storage cavity is fed into the oil supply channel through the movable handle, the oil is fed into the working cavity through the oil supply channel to realize the work of the clamp body, and the oil return channel is internally provided with a pressure relief mechanism allowing the oil in the working cavity to enter the oil storage cavity in a one-. The utility model discloses the problem that has last briquetting and replacement cost low.

Description

Oil circuit system of hydraulic cylinder body in hydraulic tool

Technical Field

The utility model belongs to the technical field of hydraulic means, a hydraulic cylinder body's oil piping system among hydraulic means is related to.

Background

At present, a hydraulic tool in the existing market comprises a clamp body, an oil cylinder, an oil storage handle and a movable handle, wherein a check valve assembly consisting of two balls and a spring is generally arranged in an oil suction channel of the oil cylinder, and the work of the clamp body is realized through the matching with the movable handle.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide an oil piping system that check valve subassembly change is convenient and change cost is low, the top pressure is fast and compress tightly back locking.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides an oil piping system of hydraulic cylinder body among hydraulic tool, this hydraulic tool including the pincers body that has the working chamber and with pincers body matched with hydraulic pressure mechanism, hydraulic pressure mechanism constitute by the pneumatic cylinder main part that has the activity handle and the fixed handle that has the oil storage chamber, and be provided with the activity chamber that supplies activity handle work in the pneumatic cylinder main part, a serial communication port, the pneumatic cylinder main part in be provided with oil absorption passageway, fuel feeding channel and oil return passage, oil absorption passageway intercommunication pneumatic cylinder main part in activity chamber and the oil storage chamber, and in sending into the fuel feeding channel through the fluid of activity handle in with the oil storage chamber to send into fluid through fuel feeding channel and realize pincers body work in the working chamber, oil return passage in be provided with the pressure release mechanism that allows the one-way entering oil storage chamber of fluid that is located the working chamber.

In the oil circuit system of the hydraulic cylinder body in the hydraulic tool, the oil suction passage is internally provided with a check valve assembly allowing oil in the oil storage cavity to enter the oil suction passage, and the oil supply passage is internally provided with a check valve assembly allowing the oil to enter the working cavity.

In an oil circuit system of a hydraulic cylinder body in the hydraulic tool, the pressure relief mechanism comprises a pressure relief cavity communicated with the oil return channel and an oil return channel communicated with the pressure relief cavity and the oil storage cavity, and a pressure relief switch which stretches into the pressure relief cavity and is used for pressure relief oil return is arranged on the outer side of the hydraulic cylinder main body located in the pressure relief cavity.

In the oil circuit system of the hydraulic cylinder in the hydraulic tool, the oil suction passage is provided with the filter valve core at an inlet of the oil storage cavity.

Compared with the prior art, the oil circuit system of the hydraulic cylinder body in the hydraulic tool has the following advantages:

1. the traditional steel ball assembly is adopted, the failure rate is high, pressure relief can occur once the failure occurs, the whole cylinder body needs to be replaced if maintenance is needed, after redesign, two check valve assemblies are adopted, so that the installation is clearer and simpler, the assembly failure rate is low, and only the check valve assembly on the cylinder body needs to be replaced once the failure occurs, so that the cylinder body has the advantages of convenience in replacement, low replacement cost and long service life;

2. after replacement, when the pressure is applied, the efficiency is improved by five percent, the pressing times are less, and the working efficiency is greatly improved;

3. the traditional structure that adopts a spring in the middle of two steel balls when suppressing the upper limit, can also rely on strength to continue to suppress, changes into the check valve after, when suppressing the upper limit, can not continue to suppress again, and life is longer, feels better.

Drawings

Fig. 1 is a schematic perspective view of a hydraulic tool in an oil path system of a hydraulic cylinder in the hydraulic tool.

Fig. 2 is a sectional view of a hydraulic tool oil feed route in the oil passage system of the hydraulic cylinder block in the hydraulic tool.

Fig. 3 is a sectional view of a hydraulic tool oil return route in the oil passage system of the hydraulic cylinder block in the present hydraulic tool.

In the figure, 1, a clamp body; 2. a movable handle; 3. a hydraulic cylinder main body; 4. a fixed handle; 5. a movable cavity; 6. an oil suction passage; 7. an oil supply passage; 8. an oil return passage; 9. a pressure relief mechanism; 10. a one-way valve assembly; 11. a pressure relief cavity; 12. an oil return passage; 13. a pressure relief switch; 14. and filtering the valve core.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in figures 1, 2 and 3, the hydraulic tool comprises a clamp body with a working cavity and a hydraulic mechanism which is matched with the clamp body and is provided with an oil circuit system, the clamp body can be in other structural shapes, the hydraulic mechanism comprises a hydraulic cylinder main body with a movable handle and a fixed handle with an oil storage cavity, the hydraulic cylinder main body is internally provided with a movable cavity for the movable handle to work, the hydraulic cylinder main body is internally provided with an oil suction channel, an oil supply channel and an oil return channel, the oil suction channel is communicated with the movable cavity and the oil storage cavity in the hydraulic cylinder main body, oil in the oil storage cavity is fed into the oil supply channel through the movable handle and is fed into the working cavity through the oil supply channel to realize the work of the clamp body, the oil return channel is internally provided with a pressure relief mechanism which allows the oil in the working cavity to enter the oil storage cavity in a one-way, the pressure relief mechanism comprises a pressure relief cavity communicated with the oil return channel and an oil return, the hydraulic cylinder main body is arranged outside the pressure relief cavity and is provided with a pressure relief switch which extends into the pressure relief cavity and is used for pressure relief and oil return, when pressure relief is needed, the pressure relief switch is rotated to enable the oil return channel to be communicated with the oil return channel through the pressure relief cavity, after pressure relief is completed, only the pressure relief switch is rotated reversely, the oil return channel is separated from the oil return channel through the pressure relief cavity, the oil suction channel is internally provided with a check valve component which allows oil in the oil storage cavity to enter the oil suction channel, the oil supply channel is also internally provided with a check valve component which allows the oil to enter the working cavity, the check valve component is composed of a shell which is connected with the cylinder body and can be disassembled, a ball and a spring which are arranged in the shell, the oil suction channel and the oil supply channel are both provided with installation cavities for installing the, and the movable cavity and the oil suction channel generate suction force, so that the one-way valve component in the oil suction channel is opened, the movable cavity, the oil suction channel and the oil supply channel are gradually filled with oil in the oil storage cavity until the one-way valve component in the oil supply channel is opened, and the filled oil enters the working cavity through the one-way valve component to realize the operation of the clamp body.

In order to prevent impurities in oil in the oil storage cavity from entering the oil suction channel to cause damage to other parts, a filter valve core for filtering the impurities in the oil is arranged at an inlet of the oil suction channel located in the oil storage cavity.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. An oil circuit system of a hydraulic cylinder body in a hydraulic tool, the hydraulic tool comprises a clamp body (1) with a working cavity and a hydraulic mechanism matched with the clamp body (1), the hydraulic mechanism consists of a hydraulic cylinder main body (3) with a movable handle (2) and a fixed handle (4) with an oil storage cavity, and a movable cavity (5) for the movable handle (2) to work is arranged in the hydraulic cylinder main body (3), the hydraulic tool is characterized in that an oil suction channel (6), an oil supply channel (7) and an oil return channel (8) are arranged in the hydraulic cylinder main body (3), the oil suction channel (6) is communicated with the movable cavity (5) and the oil storage cavity in the hydraulic cylinder main body (3), the oil in the oil storage cavity is sent into the oil supply channel (7) through the movable handle (2), and oil is sent into the working cavity through the oil supply channel (7) to realize the work of the clamp body (1), and a pressure relief mechanism (9) allowing oil in the working cavity to enter the oil storage cavity in a one-way mode is arranged in the oil return channel (8).

2. The oil circuit system of a hydraulic cylinder body in a hydraulic tool as claimed in claim 1, wherein a check valve assembly (10) for allowing oil in the oil storage chamber to enter the oil suction passage (6) is arranged in the oil suction passage (6), and a check valve assembly (10) for allowing oil to enter the working chamber is also arranged in the oil supply passage (7).

3. The oil circuit system of a hydraulic cylinder body in a hydraulic tool according to claim 1, wherein the pressure relief mechanism (9) is composed of a pressure relief cavity (11) communicated with the oil return passage (8) and an oil return passage (12) communicating the pressure relief cavity (11) with the oil storage cavity, and a pressure relief switch (13) extending into the pressure relief cavity (11) and used for pressure relief and oil return is arranged on the outer side of the hydraulic cylinder body (3) located on the pressure relief cavity (11).

4. An oil circuit system of a hydraulic cylinder body in a hydraulic tool as claimed in claim 1, characterized in that the oil suction passage (6) is provided with a filter cartridge (14) at an inlet of the oil reservoir chamber.