Jack with direction-adjustable handle

Abstract

The utility model relates to the field of jacks, in particular to a handle-direction-adjustable jack which comprises an inner pipe, an outer pipe and a driving assembly, the inner pipe and the outer pipe are coaxially arranged and slidably connected, and the driving assembly is used for driving the inner pipe and the outer pipe to slide relatively. The upper end of the outer pipe is in threaded connection with a rotating piece and a fixing piece which are coaxial with the outer pipe, the fixing piece is located below the rotating piece and abuts against the lower end of the rotating piece, and the driving assembly comprises an input shaft rotationally connected to the rotating piece. The jack has the effect that the direction of the handle of the jack can be rotated to the position suitable for operation.

Description

Technical Field

[0001] The present application relates to the field of jacks, and in particular to a jack with an adjustable handle direction. Background Art

[0002] A jack is a light and small lifting device that uses a rigid lifting piece as a working device to lift heavy objects through a small stroke of the top support or bottom claws. Jacks are mainly used in factories, mines, transportation and other departments for vehicle repairs 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 utility model patent with publication number CN207192675U discloses a trailer roof, which includes an outer sleeve and an inner sleeve inserted in the outer sleeve and driven by a driving mechanism to slide up and down relative to the outer sleeve. The lower end of the inner sleeve is connected to a support member, and the support member is configured as a flat bottom plate or a roller. The support member is detachably connected to the inner sleeve through a fastener, and has the advantages of easily replacing the flat bottom plate or the roller to adapt to different usage environments and being easy to carry.

[0004] The handle of the trailer roof is fixed in position. When the working conditions are special, it is easy for the operator to find it difficult to reach the handle, which makes the application range of the trailer roof narrow. Utility Model Content

[0005] In order to enable the handle of the jack to be rotated to a suitable operating position, the present application provides a jack with an adjustable handle direction.

[0006] The present application provides a jack with adjustable handle direction, which adopts the following technical solution:

[0007] A jack with adjustable handle direction comprises an inner tube, an outer tube and a driving assembly, wherein the inner tube and the outer tube are coaxially arranged and slidably connected, the driving assembly is used to drive the inner tube and the outer tube to slide relative to each other, the upper end of the outer tube is threadedly connected with a rotating member and a fixed member coaxial with the outer tube, the fixed member is located below the rotating member and is tightly arranged against the lower end of the rotating member, and the driving assembly comprises an input shaft rotatably connected to the rotating member.

[0008] By adopting the above technical solution, when it is necessary to adjust the direction of the input shaft, the operator rotates the rotating part to the appropriate direction, and then rotates the fixed part so that the rotating part is in a fixed state squeezed by the fixed part, so that the operator can use the jack at an angle that is convenient for operation, thereby ensuring the position stability of the rotating part. When the input shaft is rotated, the driving assembly drives the tube and the outer tube to slide relative to each other when the input shaft rotates, thereby realizing the function of the jack.

[0009] Optionally, a plurality of force-bearing holes are provided on the side walls of the fixed member and the rotating member.

[0010] It is inconvenient to directly rotate the fixed part and the rotating part. By adopting the above technical solution and inserting a tool into the force-bearing hole, the force required to rotate the fixed part and the rotating part can be reduced.

[0011] Optionally, a screw is coaxially connected to the lower end of the input shaft, a matching sleeve is outermostly provided on the screw, an inner annular surface of the matching sleeve is matched with the screw thread, an outer annular surface of the matching sleeve is fixedly connected to the inner side wall of the inner tube, a lifting piece is provided on the side wall of the screw, an end of the lifting piece away from the screw is connected to the inner side wall of the outer tube, and the lifting piece is located directly above the matching sleeve.

[0012] By adopting the above technical solution, the input shaft drives the screw to rotate when it rotates, and the screw is threadedly matched with the matching sleeve. Since the matching sleeve is fixed, the screw moves up and down when it rotates. When the screw moves up and down, the outer tube is driven up and down by the lifting piece, thereby realizing the function of the jack.

[0013] Optionally, the driving assembly includes an input shaft, a driving gear and a transmission gear. A first handle is rotatably connected to the outer wall of the rotating member. The input shaft is coaxially arranged with the first handle. The driving gear is coaxially sleeved on the input shaft. The driving gear and the transmission gear are both bevel gears and are meshed with each other. The transmission gear is coaxially arranged with the screw.

[0014] By adopting the above technical solution, the first handle drives the horizontal input shaft to rotate, and the input shaft drives the vertical screw to rotate through the driving gear and the transmission gear in turn, so that the operator can drive the outer tube up and down on the side of the rotating part, which makes the operation more convenient.

[0015] Optionally, the coaxial outer sleeve on the screw rod has two support rings, and the two support rings are located between the lifting member and the matching sleeve in the vertical direction.

[0016] By adopting the above technical solution, the lifting member will contact the support ring when moving downward, and the support ring plays a role in reducing the pressure of the lifting member on the matching sleeve.

[0017] Optionally, a collar is slidably connected to the outer tube in the vertical direction, a horizontal second support member is provided on the outer side wall of the collar, and a fixing member for fixing the position of the collar in the vertical direction is provided on the outer tube.

[0018] When the position of an object is low, it is difficult to lift the object with the top of the jack. By adopting the above technical solution, the operator moves the ring to a suitable position, fixes the ring with a fixing member, and then lifts the low-positioned object with the second support member.

[0019] Optionally, the fixing member includes a limiting rod, a second handle and a support rod, the limiting rod being vertically arranged on the outer wall of the outer tube, the limiting rod being evenly provided with a plurality of limiting holes in the vertical direction, the inner wall of the ring being provided with a limiting groove in the vertical direction for the limiting rod to pass through, a support hole coaxial with the limiting hole being provided on the outer ring surface of the ring in the horizontal direction, the support rod passing through the supporting hole and the limiting hole in sequence in the horizontal direction, and the second handle being located at the end of the support rod away from the ring.

[0020] By adopting the above technical solution, the operator moves the ring to the appropriate position, aligns the support hole with the limit hole, and passes the support rod through the support hole and the limit hole in sequence in the horizontal direction, thereby fixing the ring. This fixing method is relatively simple to assemble and disassemble, and the limit groove and the limit rod play a limiting role on the ring, making the fixation of the ring more stable.

[0021] Optionally, the collar is detachably connected to the second support member via a latch, and the latch passes through the collar and the second support member in a horizontal direction.

[0022] By adopting the above technical solution, the collar and the second support member are connected by a latch, which makes assembly and disassembly more convenient, thereby facilitating replacement of a suitable second support member for different working conditions.

[0023] Optionally, a connecting ball is provided at the lower end of the inner tube, a base is provided on the outer cover of the connecting ball, and a spherical groove for accommodating the connecting ball is opened at the upper end of the base.

[0024] By adopting the above technical solution, the connecting ball rotates in the spherical groove, so that the angle between the lower tube and the base can be adjusted, thereby realizing the function of lifting objects at multiple angles.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. When the direction of the input shaft needs to be adjusted, the operator rotates the rotating part to the appropriate direction, and then rotates the fixed part so that the rotating part is in a fixed state squeezed by the fixed part, so that the operator can use the jack at an angle that is convenient for operation;

[0027] 2. The first handle drives the horizontal input shaft to rotate, and the input shaft drives the vertical screw to rotate through the driving gear and the transmission gear in turn, so that the operator can drive the outer tube up and down on the side of the rotating part, which makes the operation more convenient;

[0028] 3. After the operator moves the collar to the appropriate position, use the fixing parts to fix the collar, and then use the second support to lift the lower object. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of a jack with adjustable handle direction according to an embodiment of the present application.

[0030] Figure 2 It is a cross-sectional view of a jack with adjustable handle direction according to an embodiment of the present application.

[0031] Figure 3 It is a structural schematic diagram of a driving component with adjustable handle direction according to an embodiment of the present application.

[0032] Figure 4 This is a schematic diagram of the structure of a screw rod, a lifting member, a matching block and a support ring with an adjustable handle direction according to an embodiment of the present application.

[0033] Figure 5 It is a structural schematic diagram of a connecting ball of a jack with adjustable handle direction according to an embodiment of the present application.

[0034] Figure 6 It is a structural schematic diagram of a base of a jack with adjustable handle direction according to an embodiment of the present application.

[0035] Figure 7 It is a structural schematic diagram of a collar, a support rod and a second handle of a jack with adjustable handle direction according to an embodiment of the present application.

[0036] Figure 8 It is a schematic structural diagram of a collar of a jack with adjustable handle direction according to an embodiment of the present application.

[0037] Explanation of the accompanying drawings: 1. outer tube; 11. rotating part; 111. first handle; 12. fixing part; 13. force hole; 2. inner tube; 21. screw rod; 22. matching sleeve; 23. lifting part; 24. support ring; 25. connecting ball; 26. base; 27. spherical groove; 3. driving assembly; 31. input shaft; 32. driving gear; 33. transmission gear; 4. fixing device; 41. limiting rod; 42. second handle; 43. support rod; 411. limiting hole; 6. first support member; 7. collar; 71. support hole; 72. second support member; 73. limiting groove; 74. latch. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1-6 This application is described in further detail.

[0039] The embodiment of the present application discloses a jack with an adjustable handle direction. Figure 1A jack with adjustable handle direction comprises an outer tube 1, an inner tube 2 and a driving assembly 3. The outer tube 1 and the inner tube 2 are both vertically arranged, the inner tube 2 and the outer tube 1 are coaxially arranged and slidingly connected, a first support member 6 for lifting an object is installed at the upper end of the outer tube 1, and a rotating member 11 and a fixing member 12 coaxial with the outer tube 1 are threadedly connected to the upper end of the outer tube 1, and the fixing member 12 is located below the rotating member 11.

[0040] Reference Figure 2 , Figure 3 as well as Figure 4 The first handle 111 is rotatably connected to the side wall of the rotating member 11. The driving assembly 3 includes a driving gear 32, a transmission gear 33 and a horizontal input shaft 31. The input shaft 31 is coaxially connected to the first handle 111. The driving gear 32 and the transmission gear 33 are both bevel gears. The driving gear 32 is coaxially sleeved on the input shaft 31. The transmission gear 33 is horizontally arranged and the upper end of the transmission gear 33 is meshed with the lower end of the driving gear 32. The lower end of the transmission gear 33 is coaxially connected with a vertically downward screw 21, so that when the operator rotates the first handle 111 on the side of the rotating member 11, the vertical screw 21 can be driven to rotate, and the operation is more convenient. The screw 21 is located in the inner tube 2 and is coaxially arranged with the inner tube 2. A matching sleeve 22 is arranged on the screw 21. The matching sleeve 22 is arranged on the screw 21. The inner ring surface of the sleeve 22 is threadedly connected to the screw rod 21, and the outer ring surface of the matching sleeve 22 is fixedly connected to the inner side wall of the inner tube 2. Two support rings 24 are arranged on the outer sleeve of the screw rod 21. The two support rings 24 are stacked and are both located directly above the matching sleeve 22. A horizontal lifting piece 23 is fixedly connected to the side wall of the screw rod 21. The lifting piece 23 is located directly above the support ring 24. The end of the lifting piece 23 away from the screw rod 21 is fixedly connected to the inner side wall of the outer tube 1. When the screw rod 21 rotates, the screw rod 21 moves up and down through the threaded cooperation with the matching sleeve 22. When the screw rod 21 moves up and down, it drives the outer tube 1 to move up and down, thereby realizing the lifting of the object. The support ring 24 plays a supporting role, reducing the pressure on the matching sleeve 22 when the lifting piece 23 moves downward, thereby playing a role in protecting the equipment.

[0041] Reference Figure 1 ,Figure ,5 and Figure 6 The lower end of the inner tube 2 is fixedly connected with a connecting ball 25 , and the connecting ball 25 is covered with a horizontal base 26 . The upper end of the base 26 is provided with a spherical groove 27 for accommodating the connecting ball 25 .

[0042] Reference Figure 1 , Figure 7 as well as Figure 8The outer tube 1 is covered with a horizontal collar 7, and a fixing member 12 for fixing the position of the collar 7 in the vertical direction is installed on the outer tube 1. The fixing member 12 includes a limiting rod 41, a second handle 42 and a support rod 43. The limiting rod 41 is vertically fixedly connected to the outer wall of the outer tube 1, and a plurality of limiting holes 411 are provided on the side wall of the limiting rod 41. The plurality of limiting holes 411 are evenly distributed in the vertical direction. A limiting groove 73 for the limiting rod 41 to pass through is provided on the collar 7 in the vertical direction. A limiting groove 73 coaxial with the limiting hole 411 is provided on the side wall of the collar 7. The support hole 71 of the sleeve 7 is provided, and the support rod 43 passes through the support hole 71 and the limiting hole 411 in sequence in the horizontal direction, so as to fix the position of the collar 7. The second handle 42 is fixedly connected to the end of the support rod 43 away from the collar 7. The outer wall of the collar 7 is detachably connected with the second support member 72 through the latch 74. The latch 74 passes through the collar 7 and the second support member 72 in the horizontal direction. Different second support members 72 can be selected for installation according to different working conditions. By adjusting the upper and lower positions of the collar 7, objects in a lower position can be lifted up.

[0043] The implementation principle of a jack with adjustable handle direction in an embodiment of the present application is: the operator first places the base 26 on the ground, rotates the connecting ball 25 to rotate the inner tube 2 to a suitable angle, then rotates the rotating member 11 to rotate the first handle 111 to an angle that is convenient for operation, and continues to rotate the fixing member 12 to move upward and press against the rotating member 11, so that the rotating member 11 is fixed.

[0044] When lifting an object at a higher position, the operator rotates the first handle 111, and the first handle 111 drives the input shaft 31 to rotate. The input shaft 31 drives the screw rod 21 to rotate through the driving gear 32 and the transmission gear 33 in turn. When the screw rod 21 rotates, the screw rod 21 moves up and down through the thread cooperation with the matching sleeve 22. When the screw rod 21 moves up and down, the outer tube 1 is driven to move up and down through the lifting member 23. When the outer tube 1 moves up and down, the object is lifted up through the first support member 6.

[0045] When lifting an object at a lower position, the operator moves the ring 7 to a suitable position, aligns the support hole 71 with the limit hole 411, and passes the support rod 43 through the support hole 71 and the limit hole 411 in sequence in the horizontal direction, thereby fixing the ring 7 and allowing the second support member 72 to lift the object at a lower position.

[0046] 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 jack with adjustable handle direction, characterized in that: The invention comprises an inner tube (2), an outer tube (1) and a driving assembly (3), wherein the inner tube (2) and the outer tube (1) are coaxially arranged and slidably connected, and the driving assembly (3) is used to drive the inner tube (2) and the outer tube (1) to slide relative to each other, and the upper end of the outer tube (1) is threadedly connected to a rotating member (11) and a fixed member (12) coaxial with the outer tube (1), and the fixed member (12) is located below the rotating member (11) and is tightly arranged against the lower end of the rotating member (11), and the driving assembly (3) comprises an input shaft (31) rotatably connected to the rotating member (11).

2. A jack with adjustable handle direction according to claim 1, characterized in that: A plurality of force-bearing holes (13) are provided on the side walls of the fixed member (12) and the rotating member (11).

3. A jack with adjustable handle direction according to claim 1, characterized in that: The lower end of the input shaft (31) is coaxially connected to a screw rod (21), a matching sleeve (22) is disposed on the outer surface of the screw rod (21), an inner annular surface of the matching sleeve (22) is threadably matched with the screw rod (21), an outer annular surface of the matching sleeve (22) is fixedly connected to the inner side wall of the inner tube (2), a lifting piece (23) is disposed on the side wall of the screw rod (21), an end of the lifting piece (23) away from the screw rod (21) is connected to the inner side wall of the outer tube (1), and the lifting piece (23) is located directly above the matching sleeve (22).

4. A jack with adjustable handle direction according to claim 3, characterized in that: The driving assembly (3) comprises an input shaft (31), a driving gear (32) and a transmission gear (33); a first handle (111) is rotatably connected to the outer wall of the rotating member (11); the input shaft (31) and the first handle (111) are coaxially arranged; the driving gear (32) is coaxially sleeved on the input shaft (31); the driving gear (32) and the transmission gear (33) are both bevel gears and are meshed with each other; the transmission gear (33) is coaxially arranged with the screw rod (21).

5. A jack with adjustable handle direction according to claim 4, characterized in that: The screw rod (21) has two coaxial outer sleeves with support rings (24), and the two support rings (24) are located between the lifting member (23) and the matching sleeve (22) in the vertical direction.

6. A jack with adjustable handle direction according to claim 1, characterized in that: The outer tube (1) is slidably connected to a collar (7) in a vertical direction, an outer side wall of the collar (7) is detachably connected to a horizontal second support member (72), and a fixing member (12) for fixing the position of the collar (7) in a vertical direction is provided on the outer tube (1).

7. A jack with adjustable handle direction according to claim 6, characterized in that: The fixing member (12) comprises a limiting rod (41), a second handle (42) and a support rod (43); the limiting rod (41) is vertically arranged on the outer side wall of the outer tube (1); a plurality of limiting holes (411) are evenly arranged on the limiting rod (41) in the vertical direction; a limiting groove (73) for the limiting rod (41) to pass through is arranged on the inner side wall of the collar (7) in the vertical direction; a support hole (71) coaxial with the limiting hole (411) is arranged on the outer ring surface of the collar (7) in the horizontal direction; the support rod (43) passes through the supporting hole (71) and the limiting hole (411) in sequence in the horizontal direction; and the second handle (42) is located at the end of the support rod (43) away from the collar (7).

8. A jack with adjustable handle direction according to claim 7, characterized in that: The collar (7) is detachably connected to the second support member (72) via a latch (74), and the latch (74) is arranged to penetrate the collar (7) and the second support member (72) in a horizontal direction.

9. The jack with adjustable handle direction according to claim 1, characterized in that: A connecting sphere (25) is provided at the lower end of the inner tube (2), a base (26) is provided on the outer cover of the connecting sphere (25), and a spherical groove (27) for accommodating the connecting sphere (25) is provided at the upper end of the base (26).

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