CN221165786U

CN221165786U - Pneumatic installation mechanism for jack screw seat

Info

Publication number: CN221165786U
Application number: CN202323166137.8U
Authority: CN
Inventors: 赵志坤
Original assignee: Qingdao Fengjinshengda Mould Co ltd
Current assignee: Qingdao Fengjinshengda Mould Co ltd
Priority date: 2023-11-23
Filing date: 2023-11-23
Publication date: 2024-06-18
Anticipated expiration: 2033-11-23

Abstract

The utility model relates to the technical field of jacks, in particular to a jack screw seat pneumatic installation mechanism which comprises a large piston, a large oil cylinder, a shell, a screw seat and a small oil cylinder, wherein the small piston is movably installed in the small oil cylinder in the up-down direction, an upper cover is installed above the small oil cylinder, and the upper cover is connected with an automatic exhaust high-pressure air inlet pipe; according to the utility model, the high-pressure gas is fixedly connected with the high-pressure gas inlet, and the high-pressure gas is intermittently conveyed, so that the oil in the oil storage cavity can be continuously pumped into the cavity of the large oil cylinder, the purpose of jacking up the heavy object is realized, the frequency pressure-increasing pressure lever handle is omitted, and even if the high-pressure gas is deeply conveyed under the heavy object, only the gas guide pipe for conveying the high-pressure gas is lengthened.

Description

Pneumatic installation mechanism for jack screw seat

Technical Field

The utility model relates to the technical field of jacks, in particular to a pneumatic jack screw seat mounting mechanism.

Background

At present, when repairing a car and changing tires, a hydraulic jack is often used, and a car with several tons can be jacked by only pressing the compression bar for many times. The hydraulic jack is composed of base, large piston, small piston, oil storage cavity, three oil pipes, three check valves and compression bar. When the handle of the compression bar is lifted, the small piston is driven to move upwards, the oil in the oil storage cavity flows into the cavity of the small piston through the oil suction pipe by opening the oil suction check valve under vacuum suction, and one oil suction action is completed; when the pressure lever handle is pressed down, the small piston is driven to move downwards, the volume of the cavity is reduced, oil pressure is generated to push the oil discharge one-way valve, at the moment, the oil suction one-way valve is closed, oil enters the cavity of the large piston through the oil discharge pipe, the large piston is pushed to rise under the action of the oil pressure, the heavy object is lifted, when the pressure lever handle is lifted up again, the oil suction action is completed, the oil discharge one-way valve is closed, pressure of the large piston is kept stable, the jack self-holding function is realized, the pressure lever handle is lifted frequently, the two one-way valves are staggered, the oil in the oil storage cavity can be continuously driven into the cavity of the large piston, the purpose of lifting the heavy object is realized, after the work is completed, if the heavy object is required to fall down, the one-way valve of the oil discharge pipe between the large piston and the oil storage cavity is opened, the oil in the large piston is returned to the oil storage cavity, and the heavy object can slowly fall to the original position, and the lifted heavy object is put down.

However, the existing hydraulic jack needs to frequently lift and press the pressure lever handle to lift the weight, and if the jack is placed in the deep below the weight, an operator can hardly lift and press the pressure lever handle. In view of this, we propose a jack screw seat pneumatic mounting mechanism.

Disclosure of utility model

In order to make up for the defects, the utility model provides a pneumatic installation mechanism of a jack screw seat.

The technical scheme of the utility model is as follows:

The jack screw seat pneumatic installation mechanism comprises a large piston, a large oil cylinder, a shell, a screw seat and a small oil cylinder, wherein the small piston is movably installed in the small oil cylinder in the up-down direction, an upper cover is installed above the small oil cylinder, and the upper cover is connected with an automatic exhaust high-pressure air inlet pipe;

The automatic exhaust high-pressure air inlet pipe is formed by a T-shaped pipeline, the lower part of the T-shaped pipeline is communicated with the small oil cylinder, a high-pressure air inlet is arranged on the left side of the T-shaped pipeline, and a net cover for exhausting is arranged on the right side of the T-shaped pipeline;

A round inner plug is arranged in the T-shaped pipeline in a left-right sealing sliding manner, and a small spring for pushing the round inner plug to be far away from the net cover is arranged between the round inner plug and the net cover;

And a large spring for pulling the small piston to move upwards is arranged between the upper cover and the small piston.

Preferably, the shell is arranged at the left side of the wire seat, the large oil cylinder is arranged in the shell, and the large oil cylinder is arranged on the wire seat.

Preferably, the large piston is installed in the large oil cylinder, and the small oil cylinder is installed on the right side of the wire seat.

Preferably, an oil storage cavity is arranged between the shell and the large oil cylinder.

Preferably, an oil suction pipe, an oil discharge pipe and an oil discharge pipe are respectively arranged in the wire seat, and two ends of the oil suction pipe are respectively communicated with the lower end of the oil storage cavity and the lower end of the small oil cylinder.

Preferably, two ends of the oil drain pipe are respectively communicated with the lower ends of the large oil cylinder and the small oil cylinder.

Preferably, two ends of the oil drain pipe are respectively communicated with the lower end of the oil storage cavity and the lower end of the large oil cylinder.

Preferably, an adjusting nut is mounted on the top end of the large piston.

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

According to the utility model, the high-pressure gas is fixedly connected with the high-pressure gas inlet, and the high-pressure gas is intermittently conveyed, so that the oil in the oil storage cavity can be continuously pumped into the cavity of the large oil cylinder, the purpose of jacking up the heavy object is realized, the frequency pressure-increasing pressure lever handle is omitted, and even if the high-pressure gas is deeply conveyed under the heavy object, only the gas guide pipe for conveying the high-pressure gas is lengthened.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a wire holder according to the present utility model;

FIG. 3 is a schematic view of the pneumatic connecting cylinder structure of the present utility model.

In the figure: 1. an adjusting nut; 2. a large piston; 3. a large oil cylinder; 4. a housing; 5. a wire seat; 6. a small oil cylinder; 7. an upper cover; 8. an oil suction pipe; 9. an oil drain pipe; 10. an oil drain pipe; 11. a small piston; 12. a large spring; 13. t-shaped pipelines; 14. a net cover; 15. a small spring; 16. and (5) circular inner plugs.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1-3, the present utility model is described in detail by the following embodiments:

The jack screw seat pneumatic installation mechanism comprises a screw seat 5, wherein a shell 4 is fixedly and hermetically installed on the left side of the screw seat 5, a large oil cylinder 3 is fixedly and hermetically installed in the shell 4, the large oil cylinder 3 is fixedly and hermetically connected with the screw seat 5, an oil storage cavity is arranged between the shell 4 and the large oil cylinder 3, a large piston 2 is fixedly and hermetically installed on the right side of the screw seat 5 in a sliding manner, a small oil cylinder 6 is fixedly and hermetically installed on the right side of the screw seat 5, a small piston 11 is movably installed in the small oil cylinder 6 in the vertical direction, an upper cover 7 is fixedly installed above the small oil cylinder 6, and an automatic exhaust high-pressure air inlet pipe is connected to the upper cover 7.

In this embodiment, the automatic exhaust high-pressure air inlet pipe is formed by a T-shaped pipe 13, the lower part of the T-shaped pipe 13 is communicated with the small oil cylinder 6, a high-pressure air inlet is arranged on the left side of the T-shaped pipe 13, a net cover 14 for exhausting is fixedly arranged on the right side of the T-shaped pipe 13, a circular inner plug 16 is arranged in the T-shaped pipe 13 in a sliding manner in a left-right sealing manner, a small spring 15 for pushing the circular inner plug 16 to be far away from the net cover 14 is fixedly arranged between the circular inner plug 16 and the net cover 14, when the high-pressure air inlet is connected with and used for conveying high-pressure air, the high-pressure air can push the circular inner plug 16 to compress the small spring 15, so that the high-pressure air inlet is communicated with the small oil cylinder 6, and the high-pressure air is conveyed into the small oil cylinder 6 to push the small piston 11 to move downwards.

In this embodiment, a large spring 12 for pulling the small piston 11 to move upward is fixedly installed between the upper cover 7 and the small piston 11, when the small piston 11 moves downward, the large spring 12 will be stretched, and when the high-pressure air inlet stops delivering high-pressure air, the compressed small spring 15 will push the circular inner plug 16 to move leftwards, so that the net cover 14 and the small oil cylinder 6 are communicated with each other, the large spring 12 will pull the small piston 11 to reset, and high-pressure air above the small oil cylinder 6 is discharged from the net cover 14.

In this embodiment, install respectively on the wire seat 5 and inhale oil pipe 8, arrange oil pipe 9, drain pipe 10, inhale the both ends of oil pipe 8 respectively with the fixed intercommunication of oil storage cavity lower extreme and the lower extreme of little hydro-cylinder 6, arrange the both ends of oil pipe 9 respectively with big hydro-cylinder 3 lower extreme and the lower extreme fixed intercommunication of little hydro-cylinder 6, drain pipe 10 both ends respectively with oil storage cavity lower extreme and big hydro-cylinder 3 lower extreme fixed intercommunication, threaded mounting has adjusting nut 1 on the top of big piston 2, inhale oil pipe 8, arrange oil pipe 9, drain pipe 10 in all fixed mounting check valve.

In this embodiment, when the heavy object is lifted by using the utility model, the high-pressure air inlet is fixedly connected with high-pressure air at first, and high-pressure air is intermittently conveyed, in an initial state, the large spring 12 pulls the small piston 11 to be positioned at the upper end of the small oil cylinder 6, when the high-pressure air inlet conveys the high-pressure air, the high-pressure air pushes the circular inner plug 16 to compress the small spring 15, so that the high-pressure air inlet and the small oil cylinder 6 are mutually communicated, the high-pressure air is conveyed into the small oil cylinder 6, the pressure in the small oil cylinder 6 is increased, the small piston 11 is pushed to move downwards, oil below the small piston 11 is extruded, the oil in the small oil cylinder 6 enters the large oil cylinder 3 through the oil drain pipe 9, the large piston 2 is pushed upwards from below, when the high-pressure air inlet stops conveying the high-pressure air, the compressed small spring 15 pushes the circular inner plug 16 to move leftwards, so that the net cover 14 and the small oil cylinder 6 are mutually communicated, the high-pressure air above the small oil cylinder 6 is discharged from the net cover 14, the large spring 12 is pushed to reset, the small oil cylinder 11 is pushed into the large oil cylinder 3 through the oil drain pipe, and the high-pressure air is pulled into the oil storage cavity through the large oil drain pipe 3, and the high-pressure air is stopped, and the high-pressure air is pumped into the oil storage cavity through the large oil cylinder 3, and the high-pressure air suction cavity is completely, and the high-pressure air storage cavity is completely and the high-pressure air is lifted.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The jack screw seat pneumatic installation mechanism comprises a large piston (2), a large oil cylinder (3), a shell (4), a screw seat (5) and a small oil cylinder (6), and is characterized in that: a small piston (11) is movably arranged in the small oil cylinder (6) in the up-down direction, an upper cover (7) is arranged above the small oil cylinder (6), and an automatic exhaust high-pressure air inlet pipe is connected to the upper cover (7);

The automatic exhaust high-pressure air inlet pipe is formed by a T-shaped pipeline (13), the lower part of the T-shaped pipeline (13) is communicated with the small oil cylinder (6), a high-pressure air inlet is formed in the left side of the T-shaped pipeline (13), and a net cover (14) for exhausting is arranged on the right side of the T-shaped pipeline (13);

A round inner plug (16) is arranged in the T-shaped pipeline (13) in a left-right sealing sliding manner, and a small spring (15) for pushing the round inner plug (16) to be far away from the net cover (14) is arranged between the round inner plug (16) and the net cover (14);

A big spring (12) for pulling the small piston (11) to move upwards is arranged between the upper cover (7) and the small piston (11).

2. The jack screw pneumatic mounting mechanism of claim 1, wherein: the shell (4) is arranged on the left side of the wire seat (5), the big oil cylinder (3) is arranged in the shell (4), and the big oil cylinder (3) is arranged on the wire seat (5).

3. The jack screw pneumatic mounting mechanism of claim 1, wherein: the large piston (2) is arranged in the large oil cylinder (3), and the small oil cylinder (6) is arranged on the right side of the wire seat (5).

4. The jack screw pneumatic mounting mechanism of claim 1, wherein: an oil storage cavity is arranged between the shell (4) and the big oil cylinder (3).

5. The jack screw pneumatic mounting mechanism of claim 4, wherein: the wire seat (5) is internally provided with an oil suction pipe (8), an oil discharge pipe (9) and an oil discharge pipe (10) respectively, and two ends of the oil suction pipe (8) are communicated with the lower end of the oil storage cavity and the lower end of the small oil cylinder (6) respectively.

6. The jack screw pneumatic mounting mechanism of claim 5, wherein: the two ends of the oil discharge pipe (9) are respectively communicated with the lower ends of the large oil cylinder (3) and the small oil cylinder (6).

7. The jack screw pneumatic mounting mechanism of claim 5, wherein: the two ends of the oil drain pipe (10) are respectively communicated with the lower end of the oil storage cavity and the lower end of the big oil cylinder (3).

8. The jack screw pneumatic mounting mechanism of claim 1, wherein: an adjusting nut (1) is arranged at the top end of the large piston (2).