Side weight jack easy to adjust

Abstract

The utility model discloses an easy-to-adjust side weight jack, and relates to the technical field of jacks, the easy-to-adjust side weight jack comprises a supporting column, the supporting column is slidably connected with a bearing shell, the bearing shell is connected with a driving assembly used for driving the bearing shell to slide, the bearing shell is slidably connected with a connecting shell, the connecting shell is rotatably connected with a lifting plate, and the lifting plate is connected with a fixing column; the bearing shell is provided with a plurality of fixing holes used for clamping the fixing columns. When the lifting plate moves to the corresponding height, the lifting plate is rotated, the fixing columns are clamped into the corresponding fixing holes, the inner walls of the fixing holes play a role in limiting sliding of the fixing columns in the vertical direction, the stability of the connecting shell and the lifting plate placed on the bearing shell is improved, and the height of the lifting plate on the bearing shell is convenient to adjust.

Description

Technical Field

[0001] The present application relates to the technical field of jacks, and in particular to an easily adjustable weight jack. Background Art

[0002] A jack is a light and small lifting device that uses a rigid lifting piece as a working device and lifts heavy objects within the stroke through a top support or a bottom support claw. It is mainly used in factories, mines, transportation and other departments for vehicle repair and other lifting and supporting work. Its structure is light and strong, flexible and reliable, and can be carried and operated by one person.

[0003] The existing Chinese patent with publication number CN220642385U discloses a screw-driven trailer jack with quick height adjustment, which adopts the following technical solution: it includes a support column, the support column is slidably connected with a load-bearing shell, the load-bearing shell is connected with a linkage assembly for driving the load-bearing shell to slide, the load-bearing shell is connected with a speed change assembly for adjusting the sliding speed of the load-bearing shell, the speed change assembly includes a driving shaft and a driven shaft rotatably connected to the load-bearing shell, the driving shaft is fixedly connected with a plurality of driving gears, the driven shaft is fixedly connected with a plurality of driven gears, the driving gear can mesh with the driven gears, the driving shaft is slidably connected with a fixed plate, the load-bearing shell is provided with a plurality of fixed ring grooves for rotationally cooperating with the fixed plate, and the driving shaft is connected with a locking member for limiting the fixed plate from disengaging from the fixed ring groove.

[0004] In the above-mentioned screw-driven trailer jack with quick height adjustment, when the fixed plate is aligned with the corresponding fixed ring groove, the fixed plate slides to the fixed ring groove, and the fixed ring groove is restricted by the locking member to prevent the fixed plate from being separated from the fixed ring groove during the rotation of the driving shaft. However, the above-mentioned screw-driven trailer jack with quick height adjustment still has some disadvantages, such as: a lifting plate is fixedly connected to the side of the bearing shell, the linkage assembly drives the bearing shell to slide in the vertical direction, and the lifting plate moves with the movement of the bearing shell, resulting in a limited lifting height of the lifting plate, which needs to be improved. Utility Model Content

[0005] The purpose of the present application is to provide an easily adjustable side weight jack for facilitating the adjustment of the height of a lifting plate on a bearing shell.

[0006] An easily adjustable side-weight jack provided in the present application adopts the following technical solution: it includes a support column, the support column is slidably connected to a load-bearing shell, the load-bearing shell is connected to a driving component for driving the load-bearing shell to slide, the load-bearing shell is slidably connected to a connecting shell, the connecting shell is rotatably connected to a lifting plate, the lifting plate is connected to a fixing column, and the load-bearing shell is provided with a plurality of fixing holes for the fixing column to be inserted.

[0007] By adopting the above technical solution, the connecting shell is moved, and the connecting shell slides along the length direction of the bearing shell. The lifting plate moves with the movement of the connecting shell. When the lifting plate moves to a corresponding height, the lifting plate is rotated so that the fixing column is inserted into the corresponding fixing hole. The outer surface of the fixing column fits with the inner wall of the fixing hole, and the inner wall of the fixing hole limits the vertical sliding of the fixing column, that is, it limits the movement of the connecting shell and the lifting plate, thereby improving the stability of the connecting shell and the lifting plate placed on the bearing shell, and facilitating the adjustment of the height of the lifting plate on the bearing shell.

[0008] Optionally, the connecting shell is connected to a mounting column, and the mounting column is slidably connected to a positioning bead, and the positioning bead can be inserted into the fixing hole. When the positioning bead is inserted into one of the fixing holes, the fixing column can be inserted into another fixing hole, and the mounting column is connected to an active part for driving the positioning bead to slide toward or away from the connecting shell.

[0009] By adopting the above technical solution, the installation column slides with the sliding of the connecting shell. When the connecting shell moves to the corresponding position, the active part drives the positioning bead to slide in the direction close to the connecting shell, so that the positioning bead is inserted into the corresponding fixing hole. The inner wall of the fixing hole restricts the movement of the positioning bead, that is, the movement of the connecting shell, which makes it easy to insert the fixing column into the corresponding fixing hole, thereby improving the efficiency of the fixing column being inserted into the fixing hole, that is, improving the efficiency of adjusting the height of the lifting plate.

[0010] Optionally, the mounting column is provided with a slide groove for slidingly cooperating with the positioning bead, and the active member is a spring, one end of the spring abuts against an inner wall of one side of the slide groove, and the other end abuts against the positioning bead.

[0011] By adopting the above technical solution, when the connecting shell slides, the inner wall of the fixing hole and the outer peripheral surface of the positioning bead are movably abutted, and the inner wall of the fixing hole drives the positioning bead to slide in the direction away from the bearing shell, so that the positioning bead is separated from the fixing hole and retracts into the sliding groove, and the spring is elastically deformed and compressed under pressure until the positioning bead is aligned with the corresponding fixing hole. The spring elastically resets, and the spring forces the positioning bead to slide in the direction close to the fixing hole, so that the positioning bead is stuck in the fixing hole, and the connecting shell is positioned again.

[0012] Optionally, the inner wall of the slide groove is connected to a limiting block, and the limiting block is provided with a through hole connected to the slide groove, and the radius of the through hole is smaller than the radius of the positioning bead.

[0013] By adopting the above technical solution, the radius of the through hole is smaller than the radius of the positioning bead, and the limit block restricts the movement of the positioning bead. Only a part of the positioning bead can pass through the through hole, preventing the positioning bead from escaping from the slide groove during movement.

[0014] Optionally, the mounting column is detachably connected to a stopper, and one end of the spring abuts against the stopper.

[0015] By adopting the above technical solution, when the positioning bead is damaged due to friction or the spring is damaged due to compression, the stopper is removed from the mounting column, and the spring and the positioning bead can be removed from the mounting column, thereby achieving replacement of the positioning bead and the spring.

[0016] Optionally, the stopper is threadedly connected to the mounting column, the stopper is connected to a rotating rod, and the stopper is located between the spring and the rotating rod.

[0017] By adopting the above technical solution, the stopper rotates with the rotation of the rotating rod, so that the stopper is separated from the mounting column; the rotating rod is rotated in the opposite direction to reinstall the stopper on the mounting column, thereby improving the efficiency of the stopper installation or removal. The rotating rod is rotated in the direction close to the positioning bead to adjust the distance between the rotating rod and the positioning bead, thereby facilitating the adjustment of the force applied by the spring to the positioning bead.

[0018] Optionally, the mounting post is detachably connected to the connecting shell, and the connecting shell is connected with a fixing component for fixing the mounting post.

[0019] By adopting the above technical solution, when the positioning bead is damaged due to friction or the spring is damaged due to compression, the mounting column is removed from the connecting shell, and then the rotating rod is rotated to make the stopper detach from the mounting column, so that the spring and the positioning bead can be poured out of the mounting column, thereby improving the removal efficiency of the spring and the positioning bead. After the new spring and positioning bead are installed on the mounting column, they are reinstalled on the connecting shell through the fixing assembly.

[0020] Optionally, the connecting shell is provided with a mounting hole for the mounting column to pass through, the fixing assembly includes a fixing block slidably connected to the connecting shell, the connecting shell is provided with a sliding cavity for slidingly cooperating with the fixing block, the sliding cavity is communicated with the mounting hole, the mounting column is provided with a fixing groove for cooperating with the fixing block, and the connecting shell is connected with an active structure for driving the fixing block to slide toward or away from the fixing groove.

[0021] By adopting the above technical solution, the mounting column passes through the mounting hole until the fixing block is aligned with the fixing groove, and the active structure drives the fixing block to slide in the direction close to the fixing groove, so that the fixing block is stuck in the fixing groove, and the outer surface of the fixing block is in contact with the inner wall of the fixing groove. The fixing block restricts the movement of the mounting column, thereby improving the stability of the mounting column installed on the connecting shell. When the mounting column needs to be removed, the active structure drives the fixing block to slide in the direction away from the fixing groove, so that the fixing block is separated from the fixing groove, which facilitates the removal of the mounting column from the connecting shell.

[0022] Optionally, the active structure includes an active rod connected to the fixed block, the connecting shell is provided with a clearance hole for slidingly cooperating with the active rod, the clearance hole is connected to the sliding cavity, and the fixed block is connected to the connecting shell via an elastic member.

[0023] By adopting the above technical solution, the active rod is moved in a direction away from the mounting hole, and the elastic member is elastically deformed and compressed under pressure, so that the fixed block is completely inserted into the sliding cavity, providing space for the installation of the mounting column. When the fixed block is aligned with the fixing groove, the active rod is released, the elastic member is elastically reset, and the elastic member forces the fixed block to slide in a direction close to the fixing groove, and the fixed block is inserted into the fixing groove, thereby improving the stability of the mounting column installed on the connecting shell.

[0024] Optionally, a convex ring is connected to the outer surface of the mounting column, and the radius of the convex ring is greater than the radius of the mounting column. When the convex ring abuts against the connecting shell, the fixing block and the fixing groove are in the same plane.

[0025] By adopting the above technical solution, when the convex ring abuts against the connecting shell, it is only necessary to rotate the mounting column to align the fixing block with the fixing groove, thereby improving the efficiency of the fixing block being inserted into the fixing groove.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. When the lifting plate moves to the corresponding height, rotate the lifting plate so that the fixing column is inserted into the corresponding fixing hole. The inner wall of the fixing hole limits the vertical sliding of the fixing column, thereby improving the stability of the connecting shell and the lifting plate placed on the bearing shell, and facilitating the adjustment of the height of the lifting plate on the bearing shell.

[0028] 2. The mounting column slides with the sliding of the connecting shell. When the connecting shell moves to the corresponding position, the active component drives the positioning bead to slide toward the connecting shell, so that the positioning bead is inserted into the corresponding fixing hole, which restricts the movement of the connecting shell and facilitates the fixing column to be inserted into the corresponding fixing hole, thereby improving the efficiency of adjusting the height of the lifting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application.

[0030] Figure 2 It is a cross-sectional view of Example 1 of the present application.

[0031] Figure 3 yes Figure 2 A magnified image of area A.

[0032] Figure 4 It is a schematic diagram of the overall structure of Example 2 of the present application.

[0033] Figure 5 It is one of the cross-sectional views of Example 2 of the present application, showing the stopper.

[0034] Figure 6 yes Figure 5 Magnified view of area B.

[0035] Figure 7 This is the second cross-sectional view of Example 2 of the present application, showing the positioning beads.

[0036] Figure 8 yes Figure 7 Magnified view of region C.

[0037] Explanation of the accompanying drawings: 1. base; 11. support column; 2. bearing shell; 21. fixing hole; 3. connecting shell; 31. sliding channel; 32. rotating shaft; 33. mounting hole; 34. sliding cavity; 35. clearance hole; 4. lifting plate; 41. fixing column; 5. mounting column; 51. positioning bead; 52. sliding groove; 53. limiting block; 531. through hole; 54. fixing groove; 55. convex ring; 6. active part; 7. stop block; 71. rotating rod; 8. fixing assembly; 81. fixing block; 82. active structure; 821. active rod; 822. elastic part. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1 -Attached Figure 8 This application is described in further detail.

[0039] The embodiment of the present application discloses an easily adjustable side weight jack.

[0040] Example 1

[0041] like Figure 1 As shown, it includes a base 1, the upper surface of the base 1 is connected to a support column 11, the support column 11 is slidably connected to a bearing shell 2, and the bearing shell 2 is connected to a driving component for driving the bearing shell 2 to slide in the vertical direction (the driving component is a prior art, and is the same as the structure of the Chinese patent with publication number CN220642385U for realizing the vertical sliding of the bearing shell 2). The bearing shell 2 is slidably connected to a connecting shell 3, and the connecting shell 3 is provided with a sliding channel 31 for slidingly cooperating with the bearing shell 2. One side of the connecting shell 3 is rotatably connected to a lifting plate 4 through a rotating shaft 32, and the upper surface of the lifting plate 4 is provided with serrations. A fixing column 41 is fixedly connected to the lifting plate 4 on one side close to the bearing plate, and a plurality of fixing holes 21 for the fixing columns 41 to be inserted are provided in a recessed manner on one side of the bearing shell 2 close to the lifting plate 4, and the plurality of fixing holes 21 are evenly distributed along the length direction of the bearing shell 2.

[0042] Combination Figure 2 and Figure 3As shown, the connection shell 3 is connected to the mounting column 5, and the positioning bead 51 is slidably connected inside the mounting column 5. The mounting column 5 is provided with a slide groove 52 for slidingly cooperating with the positioning bead 51. The mounting column 5 is connected with an active member 6 for driving the positioning bead 51 to slide in a direction close to or away from the connection shell 3. The active member 6 is a spring, one end of the spring abuts against the inner wall of one side of the slide groove 52, and the other end abuts against the positioning bead 51. The inner wall of the slide groove 52 is fixedly connected to a limiting block 53, and the limiting block 53 is provided with a through hole 531 connected to the slide groove 52, and the radius of the through hole 531 is smaller than the radius of the positioning bead 51. Part of the positioning bead 51 can pass through the through hole 531 and be inserted into the fixing hole 21. When the positioning bead 51 is inserted into one of the fixing holes 21, the lifting plate 4 is rotated to allow the fixing column 41 to be inserted into another fixing hole 21.

[0043] The implementation principle of an easily adjustable weight jack in the embodiment of the present application is:

[0044] When the height of the lifting plate 4 on the bearing shell 2 needs to be adjusted, the lifting plate 4 is rotated in the direction away from the connecting shell 3 so that the fixing column 41 is disengaged from the fixing hole 21. The connecting shell 3 is moved, and the inner wall of the fixing hole 21 is movably abutted against the outer peripheral surface of the positioning bead 51. The inner wall of the fixing hole 21 drives the positioning bead 51 to slide in the direction away from the bearing shell 2, so that the positioning bead 51 is disengaged from the fixing hole 21 and retracts into the slide groove 52, and the spring is compressed to produce elastic deformation and be compressed. When the connecting shell 3 moves to the corresponding position, when the positioning column is aligned with another fixing hole 21, the spring elastically resets, and the spring forces the positioning bead 51 to slide in the direction close to the fixing hole 21, so that the positioning bead 51 is stuck in the fixing hole 21, and the connecting shell 3 is positioned again. The lifting plate 4 is rotated in the direction close to the connecting shell 3 so that the fixing column 41 is stuck in another fixing hole 21, thereby improving the efficiency of adjusting the height of the lifting plate 4.

[0045] Example 2

[0046] The difference between this embodiment and embodiment 1 is that, Figure 4 , Figure 5 and Figure 6 As shown, the mounting column 5 is threadedly connected with a stopper 7, one end of the spring abuts against the side of the stopper 7 close to the positioning bead 51, and the side of the stopper 7 away from the positioning bead 51 is fixedly connected with a Z-shaped rotating rod 71, and the stopper 7 is located between the spring and the rotating rod 71.

[0047] Combination Figure 7 and Figure 8As shown, the mounting post 5 is detachably connected to the connecting shell 3, the connecting shell 3 is provided with a mounting hole 33 for the mounting post 5 to pass through, and the connecting shell 3 is relatively connected with two fixing components 8 for fixing the mounting post 5. Now, one of the fixing components 8 is described, and the fixing component 8 includes a fixing block 81 slidably connected to the connecting shell 3, and the connecting shell 3 is provided with a sliding cavity 34 for slidingly cooperating with the fixing block 81, and the sliding cavity 34 is connected with the mounting hole 33. The outer peripheral surface of the mounting post 5 is provided with a fixing groove 54 for the fixing block 81 to be inserted. The connecting shell 3 is connected with an active structure 82 for driving the fixed block 81 to slide in a direction close to or away from the fixed groove 54. The active structure 82 includes an active rod 821 fixedly connected to the fixed block 81. The connecting shell 3 is provided with a clearance hole 35 for slidingly cooperating with the active rod 821. The clearance hole 35 is connected with the sliding cavity 34. The fixed block 81 is connected to the connecting shell 3 through an elastic member 822. The elastic member 822 is a spring. One end of the elastic member 822 is fixedly connected to the side of the fixed block 81 away from the mounting column 5, and the other end is fixedly connected to the side of the sliding cavity 34 away from the mounting column 5. A convex ring 55 is protruded from the outer peripheral surface of the mounting column 5. The radius of the convex ring 55 is larger than the radius of the mounting column 5. When the convex ring 55 abuts against the connecting shell 3, the fixed block 81 and the fixed groove 54 are in the same plane, so that the fixed block 81 is convenient to be inserted into the fixed groove 54.

[0048] 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. An easily adjustable side weight jack, characterized in that: The invention comprises a support column (11), wherein the support column (11) is slidably connected to a bearing shell (2), wherein the bearing shell (2) is connected to a driving component for driving the bearing shell (2) to slide, wherein the bearing shell (2) is slidably connected to a connecting shell (3), wherein the connecting shell (3) is rotatably connected to a lifting plate (4), wherein the lifting plate (4) is connected to a fixing column (41), and wherein the bearing shell (2) is provided with a plurality of fixing holes (21) for the fixing columns (41) to be inserted into.

2. The easily adjustable side weight jack according to claim 1, characterized in that: The connecting shell (3) is connected to a mounting column (5), and the mounting column (5) is slidably connected to a positioning bead (51), and the positioning bead (51) can be inserted into the fixing hole (21). When the positioning bead (51) is inserted into one of the fixing holes (21), the fixing column (41) can be inserted into another fixing hole (21). The mounting column (5) is connected to an active component (6) for driving the positioning bead (51) to slide in a direction close to or away from the connecting shell (3).

3. The easily adjustable side weight jack according to claim 2, characterized in that: The mounting column (5) is provided with a slide groove (52) for slidingly cooperating with the positioning bead (51); the active member (6) is a spring, one end of the spring abuts against an inner wall of one side of the slide groove (52), and the other end abuts against the positioning bead (51).

4. The easily adjustable side weight jack according to claim 3, characterized in that: The inner wall of the slide groove (52) is connected to a limiting block (53), and the limiting block (53) is provided with a through hole (531) connected to the slide groove (52), and the radius of the through hole (531) is smaller than the radius of the positioning bead (51).

5. The easily adjustable side weight jack according to claim 3, characterized in that: The mounting column (5) is detachably connected to a stopper (7), and one end of the spring abuts against the stopper (7).

6. The easily adjustable side weight jack according to claim 5, characterized in that: The stopper (7) is threadedly connected to the mounting column (5), the stopper (7) is connected to a rotating rod (71), and the stopper (7) is located between the spring and the rotating rod (71).

7. The easily adjustable side weight jack according to claim 2, characterized in that: The mounting column (5) is detachably connected to the connecting shell (3), and the connecting shell (3) is connected to a fixing component (8) for fixing the mounting column (5).

8. The easily adjustable side weight jack according to claim 7, characterized in that: The connecting shell (3) is provided with a mounting hole (33) for the mounting column (5) to pass through, the fixing assembly (8) comprises a fixing block (81) slidably connected to the connecting shell (3), the connecting shell (3) is provided with a sliding cavity (34) for slidably cooperating with the fixing block (81), the sliding cavity (34) is communicated with the mounting hole (33), the mounting column (5) is provided with a fixing groove (54) for cooperating with the fixing block (81), and the connecting shell (3) is connected with an active structure (82) for driving the fixing block (81) to slide in a direction close to or away from the fixing groove (54).

9. The easily adjustable side weight jack according to claim 8, characterized in that: The active structure (82) comprises an active rod (821) connected to the fixed block (81); the connecting shell (3) is provided with a clearance hole (35) for slidingly cooperating with the active rod (821); the clearance hole (35) is communicated with the sliding cavity (34); and the fixed block (81) and the connecting shell (3) are connected via an elastic member (822).

10. The easily adjustable side weight jack according to claim 8, characterized in that: The outer surface of the mounting column (5) is connected to a convex ring (55), the radius of the convex ring (55) is greater than the radius of the mounting column (5), and when the convex ring (55) abuts against the connecting shell (3), the fixing block (81) and the fixing groove (54) are in the same plane.

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