Pneumatic booster jack

Abstract

The utility model discloses a pneumatic booster jack, which relates to the technical field of jacks and comprises a bottom plate, a bearing plate is mounted at the top of the bottom plate, a support column is mounted at the top of the bearing plate, and a hydraulic jack is mounted at the top of the bearing plate and positioned on the inner side of the support column. A pressure release valve is installed at the bottom of the hydraulic jack and located on one side of the bearing plate, a manual pump and a pneumatic booster are installed at the top of the bearing plate and located on the two sides of the hydraulic jack respectively, and a bolt assembly is arranged at the output end of the hydraulic jack. When the pneumatic booster jack is used, the pneumatic booster jack can be driven by an air source and can also be operated by a manual pump, so that the purposes of high lifting block, high efficiency and low labor intensity of workers can be achieved, and the purposes of high operation flexibility, powerful function and high safety are further achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of jacks, in particular to a pneumatic booster jack. Background Art

[0002] Pneumatic booster jacks can be used to lift and support heavy objects. They can keep heavy objects supported under load, or play an important auxiliary role when other tools cannot work. They are essential lifting tools in factories, mines, construction sites, ship transportation and other fields.

[0003] Before shipping, cargo generally needs to be maintained to prevent damage and ensure its safety. During this period, a jack may be needed to provide additional support to the cargo to ensure that the cargo is stable and does not tilt.

[0004] At present, most of the jacks on the market are mechanical and require manual operation. The handle of the manual operation jack is used to convert human power into the power of lifting goods through gears and other devices to achieve the lifting or pushing and pulling of objects. This method has a slow rising speed and high labor intensity for workers. In addition, safety precautions must be taken during operation to prevent accidents. Therefore, a jack with a fast rising speed and low labor intensity for workers is urgently needed to solve the above problems. Utility Model Content

[0005] In view of the above problems, the purpose of the utility model is to provide a pneumatic booster jack, and its purpose is to provide a pneumatic booster jack, which can be driven by an air source (with the help of a pneumatic booster, it can rise quickly, has high efficiency, and low labor intensity for workers), and can also be operated by a manual pump (in places where there is no air source). The jack has a wide range of applications, strong operational flexibility, powerful functions and high safety.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a pneumatic booster jack, which includes a base plate, a bearing plate is installed on the top of the base plate, a support column is installed on the top of the bearing plate, a hydraulic jack is installed on the top of the bearing plate and on the inner side of the support column, a pressure relief valve is installed on the bottom of the hydraulic jack and on one side of the bearing plate, a manual pump and a pneumatic booster are respectively installed on the top of the bearing plate and on both sides of the hydraulic jack, and a bolt assembly is provided at the output end of the hydraulic jack.

[0007] As a preferred solution of the pneumatic booster jack of the utility model, one end of the pneumatic booster is installed with a compressed air pipe, and a switch is installed on the surface of the compressed air pipe.

[0008] As a preferred solution of the pneumatic booster jack described in the utility model, a hook is installed on one side of the support column, a pressure rod is clamped inside the hook, a groove is opened at one end of the pressure rod, the groove is adapted to the pressure relief valve, and movable components are installed on the top of the base plate and on both sides of the support column.

[0009] As a preferred solution of the pneumatic booster jack described in the utility model, the moving component includes a support rod installed on the surface of the base plate, a pad and a spring are installed on the surface of the support rod, the spring is sleeved on the top of the pad, and universal wheels and braking universal wheels are respectively installed at both ends of the pad, and the moving component is provided with two groups.

[0010] As a preferred solution of the pneumatic booster jack of the utility model, the bolt assembly includes a screw rod installed at the output end of the hydraulic jack, and a handwheel assembly is installed on the surface of the screw rod.

[0011] As a preferred solution of the pneumatic booster jack of the utility model, the handwheel assembly includes a handwheel sleeved on the surface of the screw, a gasket is installed at the bottom of the inner side of the handwheel, a nut is installed on the inner side of the handwheel, the handwheel is fixedly connected to the nut, the handwheel is threadedly connected to the screw through the nut, and the gasket is located at the bottom of the nut.

[0012] Beneficial effects of the utility model:

[0013] When the utility model is used, the pressure relief valve of the hydraulic jack is closed or it is confirmed that the pressure relief valve has been closed, and then the compressed air pipe gas source is connected, and the switch of the pneumatic booster is turned on to achieve the purpose of gas source driving, or the manual pump of the hydraulic jack is operated by a pressure rod, and one end of the pressure rod with a groove is fitted with the pressure relief valve, and it is rotated clockwise to an open state, and counterclockwise to a closed state. After the pressure rod is used, it can be directly hung on the hook to achieve the purpose of manual driving. In this way, the hand wheel assembly and the bolt assembly can be raised together, so that the purpose of driving the hydraulic jack to operate in two ways can be achieved, and the purpose of strong operational flexibility, powerful functions and high safety is further achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0015] Figure 1The utility model is a schematic diagram of the overall structure of the pneumatic booster jack.

[0016] Figure 2 It is a schematic diagram of the back structure of the pneumatic booster jack of the utility model.

[0017] Figure 3 This is a diagram showing the explosion structure of the pneumatic booster jack of the utility model.

[0018] Figure 4 The utility model is a schematic diagram of the working state structure of the pneumatic booster jack.

[0019] Figure 5 The utility model is a schematic diagram of the working state structure of the pneumatic booster jack.

[0020] Figure 6 The utility model is a schematic diagram of the working state structure of the pneumatic booster jack.

[0021] Figure 7 The utility model is a schematic diagram of the working state structure of the pneumatic booster jack.

[0022] Figure 8 The utility model is a schematic diagram of the working state structure of the pneumatic booster jack.

[0023] Fig. 9 The utility model is a schematic diagram of the working state structure of the pneumatic booster jack.

[0024] Fig.10 The utility model is a schematic diagram of the working state structure of the pneumatic booster jack.

[0025] Fig.11 The utility model is a schematic diagram of the working state structure of the pneumatic booster jack.

[0026] Fig.12 The utility model is a schematic diagram of the working state structure of the pneumatic booster jack.

[0027] Description of reference numerals:

[0028] 1. Base plate; 2. Load-bearing plate; 3. Support column; 4. Hydraulic jack; 5. Pressure relief valve; 6. Manual pump; 7. Pneumatic booster; 8. Bolt assembly; 9. Handwheel assembly; 10. Compressed air pipe connection; 11. Switch; 12. Hook; 13. Pressure rod; 14. Groove; 15. Moving assembly; 16. Support rod; 17. Pad; 18. Spring; 19. Universal wheel; 20. Braking universal wheel; 21. Screw; 24. Handwheel; 25. Gasket; 26. Nut. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0030] Example 1

[0031] Reference Figure 1-12 , which is the first embodiment of the utility model, provides a pneumatic booster jack, which includes a base plate 1, a bearing plate 2 is installed on the top of the base plate 1, a support column 3 is installed on the top of the bearing plate 2, a hydraulic jack 4 is installed on the top of the bearing plate 2 and on the inner side of the support column 3, a pressure relief valve 5 is installed on the bottom of the hydraulic jack 4 and on one side of the bearing plate 2, a manual pump 6 and a pneumatic booster 7 are installed on the top of the bearing plate 2 and on both sides of the hydraulic jack 4, a bolt assembly 8 is provided at the output end of the hydraulic jack 4, and reinforcement plates are installed on both sides of the support column 3 to enhance the stability of the support column 3. The base assembly consists of the base plate 1, the bearing plate 2 and the inverted U-shaped support column 3.

[0032] A compressed air pipe 10 is installed at one end of the pneumatic booster 7, and a switch 11 is installed on the surface of the compressed air pipe 10. Close the pressure relief valve 5 of the hydraulic jack 4 or confirm that the pressure relief valve 5 is closed, connect the compressed air source, and turn on the switch 11 of the pneumatic booster 7, so that the handwheel assembly 9 and the bolt assembly 8 can rise together. Figure 1-6 as shown].

[0033] A hook 12 is installed on one side of the support column 3, and a pressure rod 13 is clamped inside the hook 12. A groove 14 is opened at one end of the pressure rod 13, and the groove 14 is adapted to the pressure relief valve 5. A moving component 15 is installed on the top of the base plate 1 and on both sides of the support column 3. The hook 12 is composed of a spring washer and a hexagon socket screw. The hexagon socket screw is used to fix the hook 12 composed of the spring washer. The spring washer can facilitate the installation and removal of the pressure rod 13 during use. The two groups of moving components 15 are connected by cross plate bolts to improve the stability of the moving component 15.

[0034] The moving assembly 15 includes a support rod 16 installed on the surface of the base plate 1, and a pad 17 and a spring 18 are installed on the surface of the support rod 16. The spring 18 is sleeved on the top of the pad 17, and a universal wheel 19 and a braking universal wheel 20 are respectively installed at both ends of the pad 17. The moving assembly 15 is provided with two groups and is symmetrically arranged. The top of the spring 18 is positioned by a screw to prevent the spring 18 from popping out, and the spring 18 is located on the top of the pad 17. The braking universal wheel 20 is used to position the jack to prevent it from moving or sliding during operation.

[0035] The bolt assembly 8 includes a screw rod 21 installed at the output end of the hydraulic jack 4, a handwheel assembly 9 is installed on the surface of the screw rod 21, a guide groove is opened on one side of the screw rod 21, a sleeve is sleeved on the surface of the screw rod 21, an internal angle bolt is installed on the surface of the sleeve, one end of the internal angle bolt extends to the inner side of the sleeve to prevent the screw rod 21 from rotating or being pulled out, the internal angle bolt is located inside the guide groove, and can limit the sleeve to prevent it from rotating, and a pad for supporting goods is installed on the top of the screw rod 21.

[0036] The handwheel assembly 9 includes a handwheel 24 sleeved on the surface of the screw rod 21, a gasket 25 is installed at the bottom of the inner side of the handwheel 24, a nut 26 is installed on the inner side of the handwheel 24, the handwheel 24 is fixedly connected to the nut 26, the handwheel 24 is threadedly connected to the screw rod 21 through the nut 26, the gasket 25 is located at the bottom of the nut 26, the gasket 25 is made of pure steel, and can reduce the friction force when the handwheel 24 rotates, the handwheel 24 is welded into one by itself, the nut 26 and two steel pipes to form a complete handwheel 24, and the steel pipes are located on the inner side of the handwheel 24 and on the outer side of the nut 26.

[0037] During use, the pneumatic booster jack is pushed to move it to a designated position under the cargo, and then the brake pads of the brake universal wheel 20 are stepped on to lock the brake universal wheel 20. Figure 2 The brake structure is shown in FIG. 1 , and then the pressure relief valve 5 of the hydraulic jack 4 is closed or the pressure relief valve 5 is confirmed to be closed. The end of the pressure rod 13 with the groove 14 is fitted with the pressure relief valve 5, and the pressure rod 13 is rotated clockwise to open and counterclockwise to close. After the pressure rod 13 is used, it can be directly hung on the hook 12. Figure 3 As shown in the partial enlarged diagram in the figure, the compressed air pipe 10 is then connected to the air source, and the switch 11 (air source drive) of the pneumatic booster 7 is turned on. Figure 4 As shown], {or by operating the manual pump 6 of the hydraulic jack 4 through the pressure rod 13, [according to Figure 5 The middle arrow drives the manual pump 6 (manual pump drive) to make the hand wheel assembly 9 and the bolt assembly 8 rise together. Figure 5 as shown];

[0038] After the screw assembly 8 of the jack reaches the cargo, it continues to load the cargo onto the bottom plate 1 of the base assembly, so that it is completely in contact with the load-bearing base surface. Figure 5 When the jack reaches the required load, the switch 11 of the pneumatic booster 7 is turned off to stop loading, and the handwheel 24 in the handwheel assembly 9 is rotated to rotate along the surface of the screw 21 through the nut 26. Figure 6 As shown], the operation is completed until the nut 26 in the handwheel assembly 9 is tightly attached to the washer at the output end of the hydraulic jack 4, [as shown Figure 7As shown in FIG. 1 , the bearing force can be transferred to the nut in the handwheel assembly 9, and the support for the goods can be completed;

[0039] When disassembly is required, close the pressure relief valve 5 of the hydraulic jack 4 or confirm that the pressure relief valve 5 has been closed, then connect the compressed air pipe 10, and turn on the switch 11 of the pneumatic booster 7 to raise the handwheel assembly 9 and the bolt assembly 8 to make them leave the gasket. Figure 8 As shown], {or use the pressure rod 13 to operate the manual pump 6 of the hydraulic jack 4, so that the hand wheel assembly 9 and the screw assembly 8 rise and leave the gasket, [as shown Figure 8 Then, turn off the switch 11 of the pneumatic booster 7 and rotate the handwheel 24 in the handwheel assembly 9 in the opposite direction until it rises to the top of the screw 21. Figure 8 Then, the pressure relief valve 5 of the hydraulic jack 4 is rotated to lower the screw rod 21 of the jack. Fig. 9 As shown], when the bottom plate 1 in the base assembly leaves the bearing base surface [as shown Fig.10 After that, open the brake pads of the brake universal wheel 20 [as shown Fig.11 As shown], just move the jack, [as shown Fig.12 as shown].

[0040] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A pneumatic booster jack, comprising a base plate (1), characterized in that: A bearing plate (2) is installed on the top of the base plate (1), a support column (3) is installed on the top of the bearing plate (2), a hydraulic jack (4) is installed on the top of the bearing plate (2) and on the inner side of the support column (3), a pressure relief valve (5) is installed on the bottom of the hydraulic jack (4) and on one side of the bearing plate (2), a manual pump (6) and a pneumatic booster (7) are installed on the top of the bearing plate (2) and on both sides of the hydraulic jack (4), and a bolt assembly (8) is provided at the output end of the hydraulic jack (4).

2. The pneumatic booster jack according to claim 1, characterized in that: A compressed air pipe (10) is installed at one end of the pneumatic booster (7), and a switch (11) is installed on the surface of the compressed air pipe (10).

3. The pneumatic booster jack according to claim 2, characterized in that: A hook (12) is installed on one side of the support column (3), a pressure rod (13) is clamped inside the hook (12), a groove (14) is opened at one end of the pressure rod (13), and the groove (14) is adapted to the pressure relief valve (5). Moving components (15) are installed on the top of the base plate (1) and on both sides of the support column (3).

4. The pneumatic booster jack according to claim 3, characterized in that: The moving assembly (15) comprises a support rod (16) mounted on the surface of the base plate (1), a pad (17) and a spring (18) being mounted on the surface of the support rod (16), the spring (18) being sleeved on the top of the pad (17), and a universal wheel (19) and a braking universal wheel (20) being mounted on both ends of the pad (17), and the moving assembly (15) is provided with two groups.

5. The pneumatic booster jack according to claim 4, characterized in that: The bolt assembly (8) comprises a screw rod (21) mounted on the output end of the hydraulic jack (4), and a hand wheel assembly (9) is mounted on the surface of the screw rod (21).

6. The pneumatic booster jack according to claim 5, characterized in that: The handwheel assembly (9) comprises a handwheel (24) sleeved on the surface of the screw rod (21), a gasket (25) is installed at the bottom of the inner side of the handwheel (24), a nut (26) is installed at the inner side of the handwheel (24), the handwheel (24) and the nut (26) are fixedly connected, the handwheel (24) is threadedly connected to the screw rod (21) through the nut (26), and the gasket (25) is located at the bottom of the nut (26).

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