Multi-adaptive jack

Abstract

The utility model relates to a multi-adaptability jack which comprises an outer pipe, an inner pipe, a base, a connecting piece and a driving piece, the connecting piece comprises a ball, the ball is arranged at one end of the inner pipe and is in ball connection with the base, the inner pipe is arranged in the outer pipe in a sleeved mode, and the driving piece is arranged on the inner pipe. And the driving piece is used for driving the inner pipe to move in the outer pipe. The jack has the effect of improving the adaptability of the jack to the inclined road surface.

Description

Technical Field

[0001] The present application relates to the field of jacks, and in particular to a multi-adaptable jack. Background Art

[0002] A jack is a small and light lifting equipment that uses a rigid lifting piece as a working device and can lift heavy objects within a small stroke of a top support or a bottom support claw. It is easy to carry and operate.

[0003] refer to Figure 1 At present, the jack includes an outer tube 1, an inner tube 2 and a driving member 5. The inner tube 2 is slidably connected to the outer tube 1. One end of the inner tube 2 is used to abut against the workpiece to be lifted. The driving member 5 is used to drive the inner tube 2 to move in the outer tube 1.

[0004] During operation, the outer tube 1 is placed on the ground below the workpiece to be lifted, and the inner tube 2 is driven to slide on the outer tube 1 by the driving member 5 until the inner tube 2 lifts the workpiece to be lifted to a desired height.

[0005] The jack is easily affected by the working environment. If the ground where the jack is placed cannot be ensured to be level, the outer tube and the inner tube will be in a tilted state. The lifted workpiece will undergo lateral displacement during the lifting process, and the lifting height will also change accordingly. Objects are prone to slipping, posing a threat to the safety of workers. The jack is not very adaptable to inclined roads. Utility Model Content

[0006] In order to improve the adaptability of the jack to inclined roads, the present application provides a jack with multiple adaptability.

[0007] The present application provides a multi-adaptable jack, which adopts the following technical solution:

[0008] A multi-adaptable jack includes an outer tube, an inner tube, a base, a connecting piece and a driving piece, wherein the connecting piece includes a sphere, the sphere is arranged on one end of the inner tube, the sphere is spherically connected to the base, the inner tube is sleeved in the outer tube, and the driving piece is used to drive the inner tube to move in the outer tube.

[0009] By adopting the above technical solution, the angle between the inner tube and the base can be adjusted by the ball connection between the ball on the inner tube and the base. When the jack needs to be used on an inclined road, the base can be pressed close to the ground, and the angle between the base and the inner tube can be changed by the connecting piece to keep the outer tube in a vertical state. The driving piece can drive the outer tube to move in the vertical direction to ensure the lifting height of the workpiece to be lifted, and reduce the lateral position of the workpiece to be lifted, thereby improving the adaptability of the jack to inclined roads.

[0010] Optionally, the connecting member also includes a limiting plate, which is sleeved on the inner tube and connected to the base by bolts. The limiting plate and the base wrap the sphere, and the limiting plate is provided with a conical groove for limiting the inclination angle between the inner tube and the base.

[0011] By adopting the above technical solution, the limiting plate ensures that the sphere is always in contact with the base, so that the inner tube can always change its inclination angle relative to the base through the sphere. When the inclination angle of the inner tube relative to the base is too large, the stability of the base will gradually decrease. The conical groove is used to limit the inclination angle of the inner tube relative to the base. The conical groove is used to improve the reliability of the jack and ensure the safety of the staff.

[0012] Optionally, the diameter of the conical groove gradually increases along the direction from the base to the inner tube, and the angle between the axis of the conical groove and the generatrix of the conical groove is 10°-20°.

[0013] By adopting the above technical solution, the larger the angle range of the conical groove, the more suitable the jack will be for the ground with a larger inclination angle. The smaller the angle range of the conical groove, the more stable the jack will be. The angle between the generatrix of the conical groove and the axis of the conical groove is 10°-20°, which makes the jack more stable and has a larger applicable range.

[0014] Optionally, an adapter pad is provided at one end of the outer tube away from the base, the adapter pad is in the shape of a disc, and the diameter of the adapter pad is larger than the diameter of the outer tube.

[0015] By adopting the above technical solution, the adapter pad is used to resist the workpiece to be lifted, and the diameter of the adapter pad is larger than the diameter of the inner tube, thereby increasing the force-bearing area of ​​the workpiece to be lifted and reducing the deformation of the outer surface of the workpiece to be lifted.

[0016] Optionally, the adapter pad is connected to the outer tube by bolts.

[0017] By adopting the above technical solution, the surface flatness of the adapter pad will decrease when it is under long-term pressure, and the workpiece to be lifted may easily move. It is necessary to replace the new adapter pad in time to ensure the safety of the jack.

[0018] Optionally, the adapter pad is provided with anti-slip grooves for increasing the friction with the workpiece to be lifted.

[0019] By adopting the above technical solution, the anti-slip pattern improves the friction between the adapter pad and the workpiece to be lifted, thereby improving the reliability of the jack.

[0020] Optionally, an arc-shaped groove for clamping a cylindrical part to be lifted is formed on the adapter pad, and two ends of the arc-shaped groove pass through the side wall of the adapter pad.

[0021] By adopting the above technical solution, the long tubular object to be lifted can be easily moved on the adapter pad. The long tubular object to be lifted is placed in the arc-shaped groove, which reduces the displacement of the long tubular object to be lifted relative to the adapter pad and improves the reliability of the jack.

[0022] Optionally, a spherical groove for lifting a spherical part to be lifted is formed at one end of the adapter pad away from the outer tube.

[0023] By adopting the above technical solution, the spherical object to be lifted is easy to move on the adapter pad. The spherical object to be lifted is placed in the spherical groove, which reduces the displacement of the spherical object to be lifted relative to the adapter pad and improves the reliability of the jack.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. The outer tube and the base are connected by a spherical ball, so that the inner tube can be tilted relative to the base. When the base is located on an inclined ground, the inner tube is ensured to be in a vertical state, which increases the applicable range of the jack;

[0026] 2. The conical groove of the limiting plate is used to limit the inclination angle between the inner tube and the base, which increases the adaptability of the jack and ensures the stability of the jack;

[0027] 3. The adapter pad is suitable for different types of workpieces to be lifted. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural diagram of the related technology.

[0029] Figure 2 It is a structural diagram of Example 1 of the present application.

[0030] Figure 3 yes Figure 2 The cross-sectional view of the inner tube is used to show the matching relationship between the inner tube and the base.

[0031] Figure 4 yes Figure 2 A cross-sectional view of the middle mounting column is used to show the schematic diagram of the drive structure.

[0032] Figure 5 It is a structural diagram of Example 2 of the present application.

[0033] Figure 6 It is a structural diagram of Example 3 of the present application.

[0034] Figure numerals: 1, outer tube; 11, mounting column; 12, cavity; 2, inner tube; 3, base; 31, first adapter groove; 4, connecting piece; 41, sphere; 42, limiting plate; 421, second adapter groove; 422, conical groove; 43, connecting rod; 5, driving piece; 51, driving shaft; 52, first bevel gear; 53, second bevel gear; 54, screw rod; 55, fixing block; 6, adapter pad; 61, anti-slip pattern; 62, arc groove; 63, spherical groove. DETAILED DESCRIPTION

[0035] The following is combined with Figure 2-6 This application is described in further detail.

[0036] The embodiment of the present application discloses a multi-adaptable jack.

[0037] Example 1

[0038] Reference Figure 2 and Figure 3 A multi-adaptable jack includes an outer tube 1, an inner tube 2, a base 3, a connecting member 4 and a driving member 5. The outer tube 1 is vertically arranged, the inner tube 2 is vertically arranged, the inner tube 2 is sleeved in the outer tube 1, and the inner tube 2 is slidably connected in the outer tube 1.

[0039] Reference Figure 2 and Figure 3 The connecting member 4 includes a sphere 41, a limiting plate 42 and a connecting rod 43. The length direction of the connecting rod 43 is parallel to the length direction of the outer tube 1. The upper end face of the connecting rod 43 is fixedly arranged on the lower end face of the inner tube 2. The sphere 41 is fixedly arranged on the lower end face of the connecting rod 43. The base 3 is disc-shaped. The upper end face of the base 3 is provided with a first adapting groove 31. The limiting plate 42 is sleeved on the connecting rod 43. The limiting plate 42 is provided with a second adapting groove 421 at one end facing the base 3. The limiting plate 42 is connected to the upper end face of the base 3 by threads. The first adapting groove 31 and the second adapting groove 421 wrap the sphere 41. The first adapting groove 31 is ball-connected with the sphere 41. A conical groove 422 is provided on the limiting plate 42. The connecting rod 43 is located in the conical groove 422. The diameter of the conical groove 422 gradually increases from the base 3 to the limiting plate 42. The angle between the axis of the conical groove 422 and the generatrix of the conical groove 422 is 15°.

[0040] refer to Figure 2 and Figure 4The upper end surface of the outer tube 1 is fixedly provided with a mounting column 11, which is coaxially arranged with the appearance, and a cavity 12 is opened in the mounting column 11. The driving member 5 includes a driving shaft 51, a first bevel gear 52, a second bevel gear 53, a screw rod 54 and a fixing block 55. The fixing block 55 is fixedly arranged on the inner side wall of the inner tube 2. The length direction of the screw rod 54 is parallel to the length direction of the inner tube 2. The screw rod 54 is rotatably connected to the mounting column 11, and the screw rod 54 is threadedly connected to the fixing block 55. The second bevel gear 53 is located in the cavity 12. The second bevel gear 53 is coaxially arranged with the screw rod 54. The second bevel gear 53 is fixedly arranged on the upper end surface of the screw rod 54. The driving shaft 51 is horizontally arranged, and the driving shaft 51 is rotatably connected to the mounting column 11. One end of the driving shaft 51 penetrates into the cavity 12. The first bevel gear 52 is coaxially arranged with the driving shaft 51, and the first bevel gear 52 is fixedly arranged on the driving shaft 51. The first bevel gear 52 is meshed with the second bevel gear 53.

[0041] refer to Figure 2 and Figure 4 An adapter pad 6 is provided at one end of the mounting column 11 away from the outer tube 1. The adapter pad 6 is in the shape of a disc and is coaxially arranged with the mounting column 11. The adapter pad 6 is connected to the mounting column 11 by bolts. The diameter of the adapter pad 6 is larger than the diameter of the appearance. An anti-slip pattern 61 is provided at one end of the adapter pad 6 away from the mounting column 11.

[0042] The principle of Example 1 is as follows: when a jack is needed on an inclined ground, the staff first places the jack under the workpiece to be lifted, places the base 3 on the ground, and the base 3 is close to the ground, and is ball-connected with the first adapter groove 31 through the ball 41, and the inner tube 2 is adjusted until the inner tube 2 is in a vertical state. Since the outer tube 1 is sleeved on the inner tube 2, the outer tube 1 is also in a vertical state. Then the staff rotates the drive shaft 51, and the drive shaft 51 drives the first bevel gear 52 to rotate, and the first bevel gear 52 drives the second bevel gear 53 to rotate, and the second bevel gear 53 drives the screw rod 54 to rotate, and the screw rod 54 rotates relative to the fixed block 55, and the screw rod 54 drives the outer tube 1 to move relative to the inner tube 2 until the adapter pad 6 abuts against the workpiece to be lifted, and the anti-slip groove 61 on the adapter pad 6 is used to increase the friction between the adapter pad 6 and the workpiece to be lifted, and the drive shaft 51 continues to be rotated until the workpiece to be lifted moves to the required height.

[0043] Example 2

[0044] The difference between this embodiment and embodiment 1 is that: Figure 5 An arc-shaped groove 62 is formed on the upper end surface of the adapter pad 6 , and both ends of the arc-shaped groove 62 in the length direction penetrate the adapter pad 6 .

[0045] The implementation principle of Example 2 is: when the jack needs to lift a cylindrical workpiece to be lifted in a horizontal state, the staff can replace the adapter pad 6 with an adapter pad 6 with an arc-shaped groove 62. The cylindrical workpiece to be lifted always remains at the lowest point of the arc-shaped groove 62 under the action of gravity, reducing the relative movement between the workpiece to be lifted and the adapter pad 6.

[0046] Example 3

[0047] The difference between this embodiment and embodiment 1 is that: Figure 6 A spherical groove 63 is formed on the upper end surface of the adapter pad 6 , and the spherical groove 63 extends along the thickness direction of the adapter pad 6 .

[0048] The implementation principle of Example 3 is: when the jack needs to lift a spherical workpiece to be lifted, the staff can replace the adapter pad 6 with an adapter pad 6 with a spherical groove 63. The spherical workpiece to be lifted always remains in the spherical groove 63 under the action of gravity, reducing the relative movement between the workpiece to be lifted and the adapter pad 6.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A multi-adaptable jack, characterized in that: The invention comprises an outer tube (1), an inner tube (2), a base (3), a connecting member (4) and a driving member (5), wherein the connecting member (4) comprises a sphere (41), the sphere (41) is arranged on one end of the inner tube (2), the sphere (41) and the base (3) are spherically connected, the inner tube (2) is sleeved in the outer tube (1), and the driving member (5) is used for driving the inner tube (2) to move in the outer tube (1).

2. A multi-adaptable jack according to claim 1, characterized in that: The connecting member (4) further comprises a limiting plate (42), wherein the limiting plate (42) is sleeved on the inner tube (2), the limiting plate (42) is connected to the base (3) by means of bolts, the limiting plate (42) and the base (3) wrap the sphere (41), and the limiting plate (42) is provided with a conical groove (422) for limiting the inclination angle between the inner tube (2) and the base (3).

3. A multi-adaptable jack according to claim 2, characterized in that: The diameter of the conical groove (422) gradually increases in the direction from the base (3) to the inner tube (2), and the angle between the axis of the conical groove (422) and the generatrix of the conical groove (422) is 10°-20°.

4. The multi-adaptable jack according to claim 1, characterized in that: An adaptor pad (6) is provided at one end of the outer tube (1) facing away from the base (3); the adaptor pad (6) is in the shape of a disc, and the diameter of the adaptor pad (6) is greater than the diameter of the outer tube (1).

5. A multi-adaptable jack according to claim 4, characterized in that: The adapter pad (6) is connected to the outer tube (1) by means of bolts.

6. A multi-adaptable jack according to claim 5, characterized in that: The adapter pad (6) is provided with anti-slip grooves (61) for increasing the friction with the workpiece to be lifted.

7. The multi-adaptable jack according to claim 5, characterized in that: The adapter pad (6) is provided with an arc-shaped groove (62) for clamping a cylindrical piece to be lifted, and two ends of the arc-shaped groove (62) penetrate through the side wall of the adapter pad (6).

8. The multi-adaptable jack according to claim 5, characterized in that: A spherical groove (63) for lifting a spherical part to be lifted is formed at one end of the adapter pad (6) facing away from the outer tube (1).

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