Portable pneumatic jack

Abstract

The utility model discloses a portable pneumatic jack, which belongs to the field of pneumatic jacks, and comprises a pneumatic jack body, the peripheral side surface of the pneumatic jack body is fixedly connected with a movable adjusting component, and the movable adjusting component comprises a movable supporting seat. Two limiting wheels are symmetrically and fixedly connected to the upper surface of the movable supporting seat through lug plates, limiting regulation and control openings are formed in the circumferential side faces of the limiting wheels, a limiting transverse plate is arranged between the two limiting wheels, the limiting transverse plate is clamped with the limiting regulation and control openings in the two limiting wheels, and a folding regulation and control assembly is fixedly connected to the upper surface of the movable regulation assembly. The folding regulation and control assembly comprises a U-shaped supporting frame body, a folding supporting rod is rotationally connected between the two opposite inner side walls of the U-shaped supporting frame body, a limiting supporting disc is arranged in the U-shaped supporting frame body, the position relation between the U-shaped supporting frame body and the folding supporting rod can be achieved, and the inclination angle of the folding regulation and control assembly can be adjusted; the pneumatic jack body can conveniently enter a narrow area.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of pneumatic jack, more specifically, to a portable pneumatic jack. BACKGROUND

[0002] Pneumatic jack, also known as pneumatic hydraulic jack, is a tool that uses compressed gas as a power source to lift heavy objects through pneumatic devices. It uses compressed air as a power source and changes the on-off of the air circuit through a control valve to achieve the adjustment of the hydraulic cylinder thrust. It plays an important role in the fields of automobile repair industry, mechanical manufacturing, construction engineering and shipbuilding.

[0003] Chinese patent authorization announcement number: CN220664743U, provides a kind of pneumatic car bottom jack, this patent is by design handle valve, handle and handle, utilize one hand to control handle and handle simultaneously, pinch handle and make handle rotate, can open rotary handle valve and inflate air bag, it is convenient to single-handed control and maintain jack position, while the other hand can control valve, so that structure is simple and convenient to use.

[0004] In actual use process, pneumatic jack is moved by handle, but when jack needs to enter narrow position to work, handle is easy to hinder the movement of jack, and the length of device is limited, when it needs to work at a long distance in narrow area, it is inconvenient to adjust the working range of jack. UTILITY MODEL CONTENT

[0005] 1. Technical problem to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a portable pneumatic jack, which can realize portable movement of the equipment and facilitate work in narrow areas.

[0007] 2. Technical scheme

[0008] To solve the above problems, the utility model adopts the following technical scheme.

[0009] The utility model provides a portable pneumatic jack, including pneumatic jack body, mobile adjusting assembly is fixedly connected to the pneumatic jack body perimetric surface, the mobile adjusting assembly includes mobile support seat, the upper surface of mobile support seat is fixedly connected with two limit wheels through the ear plate symmetry, a plurality of limit control ports are arranged on the perimetric surface of limit wheel, the movable limit horizontal plate is arranged between two limit wheels, and the both ends of limit horizontal plate are respectively clamped with the upper limit control port of two limit wheels, the upper surface of mobile adjusting assembly is fixedly connected with folding control assembly, folding control assembly includes fixedly set U shape support frame, the both sides of U shape support frame are rotatably connected with folding support rod through pivot, and the inside of U shape support frame is provided with limit support disc.

[0010] Further, the mobile support seat is rotatably connected with a mobile wheel on the opposite sides, and a U-shaped support seat is rotatably connected between the two ear plates, the opposite sides of the U-shaped support seat are provided with adjusting guide slides, and the limit horizontal plate is slidably arranged between the two adjusting guide slides.

[0011] Further, the surface of the U-shaped support seat is symmetrically slidably penetrated by two guide sliding rods, one end of the guide sliding rod penetrating the U-shaped support seat is fixedly connected between the limit horizontal plate, and the other end of the guide sliding rod away from the limit horizontal plate is fixedly connected with an adjusting transmission handle; two return springs are symmetrically fixedly connected between the inner top of the U-shaped support seat and the limit horizontal plate, and the return spring is sleeved on the outside of the corresponding guide sliding rod.

[0012] Further, the U-shaped support frame is fixedly connected to the upper surface of the U-shaped support seat, the opposite sides of the U-shaped support frame are fixedly connected with extension plates, and the extension plates are located above the corresponding adjusting transmission handle; a control screw is fixedly connected to one side of the limit support disc, the control screw is threadedly connected with the U-shaped support frame, one end of the control screw penetrating the U-shaped support frame is fixedly connected with a driving shaft, and one end of the driving shaft is fixedly connected with a driving disc.

[0013] Further, the driving shaft is slidably provided with a transmission connecting rod on the perimetric surface, the transmission connecting rod is rotatably connected with the control screw, both ends of the pivot penetrating the U-shaped support frame are fixedly connected with transmission gears, the opposite sides of the transmission connecting rod are fixedly connected with transmission racks, and the transmission rack is engaged with the corresponding transmission gear.

[0014] Further, the opposite sides of the U-shaped support frame close to the transmission gear are provided with guide sliding grooves, one side of the transmission rack is slidably connected with the corresponding guide sliding groove through a transmission block, and the opposite sides of the folding support rod are fixedly connected with a mobile handle.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] (1) this scheme moves the limit stop plate away from the limit control port, rotates the U-shaped support frame, until the both ends of the limit stop plate are opposite to the limit control port corresponding to the limit wheel, releases the adjusting transmission handle, and the limit stop plate is inserted into the inside of the corresponding limit control port, so that the inclination angle of the folding control assembly is adjusted, the movement of the pneumatic jack body is avoided, and the pneumatic jack body is conveniently operated in a narrower area.

[0018] (2) this scheme moves the limit stop plate by the control screw, simultaneously drives the transmission connecting rod to move synchronously, under the meshing effect of the transmission rack and the corresponding transmission gear, the transmission gear rotates and drives the rotating shaft to rotate, so that the folding support rod rotates, the folding support rod is adjusted to be aligned up and down or front and back with the U-shaped support frame, so that the length adjustment of the folding control assembly is realized, the pneumatic jack body is conveniently operated in a farther position in a narrow area, folding is conveniently stored, and the occupied space is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the structural schematic diagram of the utility model;

[0020] Figure 2 It is the structural schematic diagram of the utility model in mobile adjusting assembly;

[0021] Figure 3 It is the structural schematic diagram of the folding control assembly in the utility model;

[0022] Figure 4 It is Figure 3 It is the local enlarged view of A in the utility model;

[0023] Figure 5 It is the longitudinal structure section view of the folding control assembly of the utility model;

[0024] Figure 6 It is the local enlarged view of B in the utility model.

[0025] Mark explanation in drawing:

[0026] 1, pneumatic jack body; 2, moving adjustment assembly; 201, moving support seat; 202, limit wheel; 203, limit control port; 204, limit cross plate; 205, moving wheel; 206, U-shaped support seat; 207, adjustment guide slide; 208, adjustment transmission handle; 209, return spring; 3, folding control assembly; 301, U-shaped support frame; 302, folding support rod; 303, limit support disc; 304, extension support plate; 305, control screw; 306, drive disc; 307, transmission connecting rod; 308, transmission gear; 309, transmission rack; 310, moving handle. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] In the description of the present application, it should be pointed out that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present application, it should be pointed out that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be broadly understood, for example, "connected" can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, and can be connected inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0030] Example 1

[0031] Please refer to Figures 1-6The utility model provides a portable pneumatic jack, including pneumatic jack body 1, and pneumatic jack body 1 periphery is fixedly connected with mobile adjustment subassembly 2, mobile adjustment subassembly 2 includes mobile support seat 201, and the upper surface of mobile support seat 201 is fixedly connected with two limit wheels 202 through the ear plate symmetry, and the periphery of limit wheel 202 is provided with a plurality of limit control ports 203, and the movable limit horizontal plate 204 of being set between two limit wheels 202, and the both ends of limit horizontal plate 204 are respectively with two limit wheels 202 on the limit control port 203 of carding, and the carding effect between limit horizontal plate 204 and two limit wheels 202 on limit control port 203 realizes angle adjustment.

[0032] Further, the upper surface of the mobile adjustment subassembly 2 is fixedly connected with a folding control assembly 3, which includes a fixedly arranged U-shaped support frame 301. In the initial state, the U-shaped support frame 301 is perpendicular to the mobile support seat 201. According to the need for adjustment, the included angle between the U-shaped support frame 301 and the mobile support seat 201 is adjusted to facilitate the flexible movement of the pneumatic jack body 1. The U-shaped support frame 301 is connected with a folding support rod 302 through a rotating shaft between the two inner side walls. A limiting support disc 303 is arranged inside the U-shaped support frame 301. When the limiting support disc 303 is in close contact with the folding support rod 302, the position of the folding support rod 302 is limited to prevent movement of the folding support rod 302.

[0033] The operation process of the embodiment is as follows: the mobile support seat 201 drives the pneumatic jack body 1 to move in position. When the pneumatic jack body 1 needs to enter a relatively narrow area (such as the bottom of a vehicle) for work, the inclination angle of the folding control assembly 3 is adjusted according to the use requirement, the limiting horizontal plate 204 is controlled to move away from the limiting control port 203, the folding control assembly 3 is rotated so that the limiting horizontal plate 204 corresponds to the corresponding limiting control port 203, and then the limiting horizontal plate 204 is inserted into the corresponding limiting control port 203 to adjust the angle of the folding control assembly 3. According to the need for use or storage, the limiting support disc 303 is controlled to move away from the folding support rod 302, the folding support rod 302 is released from the limitation, and then the folding support rod 302 is rotated so that the folding support rod 302 is aligned with the U-shaped support frame 301 (as shown in Figure 1 When storage is needed, the limiting support disc 303 is controlled to move away from the folding support rod 302, the folding support rod 302 is released from the limitation, and then the folding support rod 302 is rotated clockwise (as shown in Figure 1The folding support rod 302 is aligned with the U-shaped support frame 301 front and back, the control limiting support disc 303 is tightly attached to the folding support rod 302, the length of the folding control assembly 3 is shortened, and the folding control assembly 3 is folded and stored in cooperation with the angle adjustment of the folding control assembly 3.

[0034] Embodiment 2:

[0035] Please refer to Figures 1-6 The portable pneumatic jack is provided with a moving support seat 201, and moving wheels 205 are rotatably connected to the two side surfaces of the moving support seat 201. A U-shaped support seat 206 is rotatably connected between the two ear plates, and adjusting guide slides 207 are formed in the two side surfaces of the U-shaped support seat 206. A limiting transverse plate 204 is slidably arranged between the two adjusting guide slides 207.

[0036] Further, two guide sliding rods are symmetrically and slidably arranged on the surface of the U-shaped support seat 206. One end of each guide sliding rod is fixedly connected between the U-shaped support seat 206 and the limiting transverse plate 204, and the other end of each guide sliding rod is fixedly connected with an adjusting transmission handle 208. Two return springs 209 are symmetrically and fixedly connected between the inner top of the U-shaped support seat 206 and the limiting transverse plate 204, and each return spring 209 is sleeved on the outside of the corresponding guide sliding rod.

[0037] Further, a U-shaped support frame 301 is fixedly connected to the upper surface of the U-shaped support seat 206. The two side surfaces of the U-shaped support frame 301 are fixedly connected with extension plates 304, and the extension plates 304 are located above the adjusting transmission handles 208. In the initial state, there is a certain gap between the extension plates 304 and the adjusting transmission handles 208. A limiting support disc 303 is fixedly connected to one side surface of the U-shaped support frame 301. The limiting support disc 303 is threadedly connected with the U-shaped support frame 301, and one end of the limiting support disc 303 penetrating through the U-shaped support frame 301 is fixedly connected with a driving shaft. The other end of the driving shaft is fixedly connected with a driving disc 306.

[0038] Further, a transmission connecting rod 307 is slidably arranged on the circumferential surface of the driving shaft. The transmission connecting rod 307 is rotatably connected with the limiting support disc 303. Two transmission gears 308 are fixedly connected to the two ends of a rotating shaft penetrating through the U-shaped support frame 301. The two side surfaces of the transmission connecting rod 307 are fixedly connected with transmission racks 309, and the transmission racks 309 are engaged with the corresponding transmission gears 308.

[0039] Further, the two side surfaces of the U-shaped support frame 301 close to the transmission gears 308 are provided with guide sliding grooves. One side surface of the transmission rack 309 is slidably connected with the corresponding guide sliding groove through a transmission block. Two moving handles 310 are fixedly connected to the two side surfaces of the folding support rod 302. The position of the entire device can be adjusted by pushing the moving handles 310.

[0040] The operation process of the embodiment is as follows: the operator pushes the whole device through the hand-held moving handle 310, the moving wheel 205 rotates, the moving support base 201 moves, and the whole device moves. When the pneumatic jack body 1 needs to be extended into a narrow area (such as the bottom of a vehicle) for work, the inclination angle of the folding control assembly 3 is adjusted according to the use requirement, and the specific operation process is as follows:

[0041] The worker places both hands on the corresponding extension support plates 304, and holds the adjusting transmission handle 208 with four fingers. The adjusting transmission handle 208 is pulled towards the extension support plate 304 through the bending of the four fingers, and moves towards the extension support plate 304 under the connection of the guide slide rod. The limiting transverse plate 204 moves synchronously until the limiting transverse plate 204 is away from the limiting control port 203 on the limiting wheel 202. The reset spring 209 is compressed. Then the U-shaped support frame 301 is pulled clockwise by the force (as shown in Figure 1 When the two ends of the limiting transverse plate 204 are opposite to the corresponding limiting control ports 203 of the limiting wheels 202, the adjusting transmission handle 208 is released. Under the elastic recovery action of the reset spring 209, the adjusting transmission handle 208 moves away from the extension support plate 304, and the limiting transverse plate 204 moves synchronously until the limiting transverse plate 204 is inserted into the corresponding limiting control port 203. At this time, the U-shaped support frame 301 rotates by a certain angle. Since the folding control assembly 3 is fixedly connected to the U-shaped support frame 301, the folding control assembly 3 rotates synchronously by a certain angle, so as to avoid the folding control assembly 3 from hindering the pneumatic jack body 1 from entering the narrow area for work.

[0042] When the pneumatic jack body 1 needs to be extended to a farther position in the narrow area, the drive disc 306 is manually rotated, and the control screw 305 is synchronously rotated under the connection of the drive shaft. Under the threaded cooperation between the control screw 305 and the U-shaped support frame 301, the control screw 305 drives the limiting support disc 303 to move, so that the limiting support disc 303 gradually approaches the folding support rod 302. In the process of moving the control screw 305 towards the folding support rod 302, the transmission connecting rod 307 is synchronously moved. The transmission connecting rod 307 drives the transmission rack 309 to move synchronously. In this process, the transmission gear 308 rotates under the meshing action of the transmission rack 309 and the corresponding transmission gear 308, and the folding support rod 302 counterclockwise rotates (as shown in Figure 1 under the connection of the rotating shaft), until the folding support rod 302 is aligned with the U-shaped support frame 301 (as shown in Figure 1 The length of the folding control assembly 3 can be increased to facilitate extension to a farther position.

[0043] When the pneumatic jack body 1 needs to be used up and needs to be stored, the driving disc 306 is manually rotated, the regulating screw 305 is synchronously rotated under the connection of the driving shaft, the limiting support disc 303 is moved under the cooperation of the regulating screw 305 and the U-shaped support frame 301, the limiting support disc 303 gradually moves away from the folding support rod 302, the folding support rod 302 loses the limitation, and the transmission connecting rod 307 is synchronously moved in the process that the regulating screw 305 moves away from the folding support rod 302, the transmission rack 309 is synchronously moved through the transmission connecting rod 307, the transmission gear 308 is rotated under the cooperation of the transmission rack 309 and the transmission gear 308, the folding support rod 302 is rotated clockwise (as shown in Figure 1 The length of the folding regulating assembly 3 is shortened, and the folding regulating assembly 3 is conveniently stored through angle adjustment.

[0044] The above is only a preferred specific embodiment of the present application; however, the protection scope of the present application is not limited to this. Any person skilled in the art, according to the technical scheme and improvement concept of the present application, should be covered in the protection scope of the present application.

Claims

1. A portable pneumatic jack comprising a pneumatic jack body (1), characterised in that: The pneumatic jack body (1) is fixedly connected with a moving adjusting assembly (2) on the side surface thereof; The moving adjusting assembly (2) comprises a moving support seat (201), two limiting wheels (202) are symmetrically and fixedly connected to the upper surface of the moving support seat (201) through an ear plate, a plurality of limiting regulating openings (203) are formed in the side surface of the limiting wheel (202), and a limiting transverse plate (204) that can move up and down is arranged between the two limiting wheels (202), and the two ends of the limiting transverse plate (204) are respectively clamped with the limiting regulating openings (203) on the two limiting wheels (202). The moving adjusting assembly (2) is fixedly connected with a folding regulating assembly (3) on the upper surface thereof, the folding regulating assembly (3) comprises a fixedly arranged U-shaped support frame (301), a folding support rod (302) is connected between the opposite two inner side walls of the U-shaped support frame (301) through a rotating shaft, and a limiting support disc (303) is arranged in the U-shaped support frame (301).

2. A portable pneumatic jack as claimed in claim 1 wherein: The moving support seat (201) is rotatably connected with a moving wheel (205) on the opposite two side surfaces thereof, a U-shaped support seat (206) is rotatably connected between the two ear plates, adjusting guide slides (207) are formed in the opposite two side surfaces of the U-shaped support seat (206), and the limiting transverse plate (204) is slidably arranged between the two adjusting guide slides (207).

3. A portable pneumatic jack as claimed in claim 2 wherein: The U-shaped support seat (206) is symmetrically and slidably penetrated by two guide sliding rods, one end of the guide sliding rod penetrating the U-shaped support seat (206) is fixedly connected with the limiting transverse plate (204), and the other end of the guide sliding rod away from the limiting transverse plate (204) is fixedly connected with an adjusting transmission handle (208).

4. A portable pneumatic jack as claimed in claim 3 wherein: Two return springs (209) are symmetrically and fixedly connected between the inner top of the U-shaped support seat (206) and the limiting transverse plate (204), and the return spring (209) is sleeved outside the corresponding guide sliding rod.

5. A portable pneumatic jack as claimed in claim 4 wherein: The U-shaped support frame (301) is fixedly connected to the upper surface of the U-shaped support seat (206), and the opposite two side surfaces of the U-shaped support frame (301) are fixedly connected with extension support plates (304), and the extension support plates (304) are located above the corresponding adjusting transmission handle (208).

6. A portable pneumatic jack as claimed in claim 5 wherein: A regulating screw (305) is fixedly connected to one side of the limiting support disc (303), the regulating screw (305) is threadedly connected with the U-shaped support frame (301), one end of the regulating screw (305) penetrating the U-shaped support frame (301) is fixedly connected with a driving shaft, and one end of the driving shaft is fixedly connected with a driving disc (306).

7. A portable pneumatic jack as claimed in claim 6 wherein: A transmission connecting rod (307) is slidably arranged on the side surface of the driving shaft, the transmission connecting rod (307) is rotatably connected with the regulating screw (305), both ends of the rotating shaft penetrating the U-shaped support frame (301) are fixedly connected with transmission gears (308), the opposite two side surfaces of the transmission connecting rod (307) are fixedly connected with transmission racks (309), and the transmission rack (309) is engaged with the corresponding transmission gear (308).

8. A portable pneumatic jack as claimed in claim 7 wherein: The U-shaped support frame body (301) is provided with a guide sliding groove near the two side faces of the transmission gear (308), one side face of the transmission rack (309) is slidably connected with the corresponding guide sliding groove through a transmission block, and the folding support rod (302) is fixedly connected with a moving handle (310) on the opposite two side faces.

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