Jack convenient to disassemble

Abstract

The utility model relates to the field of jacks, in particular to a jack convenient to disassemble, which comprises an inner pipe, an outer pipe and a sliding part, the inner pipe and the outer pipe are coaxially arranged and are in sliding connection, the sliding part is used for driving the inner pipe and the outer pipe to generate relative sliding, an output rod is coaxially arranged in the outer pipe, and the output rod is used for driving the inner pipe to slide relative to the outer pipe. The lower end of the output rod is coaxially sleeved with a shaft sleeve, the cross section of the lower end of the output rod is polygonal, the inner space of the shaft sleeve is a polygonal groove corresponding to the lower end of the output rod in size, the lower end of the shaft sleeve is coaxially connected with a connecting rod, and the cross section of the upper end of the connecting rod is polygonal corresponding to the polygonal groove in size. And the lower end of the connecting rod is connected with the sliding piece. The jack has the effect of facilitating disassembly of the jack.

Description

Technical Field

[0001] The present application relates to the field of jacks, and in particular to a jack that is easy to disassemble. 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 CN114148936A discloses a jack device, which includes an outer cylinder, and also includes: an inner cylinder vertically slidably connected to the outer cylinder; a screw connected to the outer cylinder through a bearing, and the screw and the inner cylinder are threadedly connected; a power structure for driving the screw to rotate; a connecting plate fixed to the bottom end of the inner cylinder; a clamping structure arranged on the outer cylinder for clamping the outer cylinder to prevent it from sliding; and a lubrication structure for lubricating the screw as the power structure moves.

[0004] During the use of the jack, the internal parts are greatly worn and need to be replaced in time to maintain the normal use of the jack. The structure of the jack is relatively complex, and the screw is directly connected to the bevel gear. When replacing parts, the jack needs to be disassembled more thoroughly, which is inconvenient to operate. Utility Model Content

[0005] In order to facilitate the disassembly of the jack, the present application provides a jack that is easy to disassemble.

[0006] The present application provides a jack that is easy to disassemble, which adopts the following technical solution:

[0007] A jack that is easy to disassemble comprises an inner tube, an outer tube and a sliding member, wherein the inner tube and the outer tube are coaxially arranged and slidably connected, and the sliding member is used to drive the inner tube and the outer tube to slide relative to each other, an output rod is coaxially arranged inside the outer tube, and a shaft sleeve is coaxially arranged outside the lower end of the output rod, and the cross-section of the lower end of the output rod is polygonal, and the internal space of the shaft sleeve is a polygonal groove corresponding to the size of the lower end of the output rod, and a connecting rod is coaxially connected to the lower end of the shaft sleeve, and the cross-section of the upper end of the connecting rod is a polygon corresponding to the size of the polygonal groove, and the lower end of the connecting rod is connected to the sliding member.

[0008] By adopting the above technical solution, after the inner tube is fixed, the sliding member drives the outer tube to move up and down through the connecting rod, the shaft sleeve and the output transmission. When the outer tube moves up and down, the object is lifted. When disassembling the jack, the input shaft and the connecting rod are removed from the shaft sleeve, thereby completing the separation of the outer tube and the sliding member, and disassembly is more convenient.

[0009] Optionally, the sliding member includes a screw, a matching sleeve and a lifting member, the screw is coaxially arranged in the inner tube, the upper end of the screw is coaxially connected to the lower end of the connecting rod, the matching sleeve is outer-mounted on the screw, the inner annular surface of the matching sleeve is matched with the screw thread, the outer annular surface of the matching sleeve is fixedly connected to the inner side wall of the inner tube, the lifting member is arranged on the side wall of the screw, the end of the lifting member away from the screw is connected to the inner side wall of the outer tube, and the lifting member is located directly above the matching sleeve.

[0010] By adopting the above technical solution, the connecting rod rotates to drive the screw to rotate, 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.

[0011] Optionally, a fixing groove is provided on the side wall of the connecting rod, and a limiting hole coaxial with and of the same size as the fixing groove is provided on the side wall of the sleeve, a fixing screw is slidably connected in the limiting hole, and the fixing screw passes through the limiting hole and the fixing groove in a horizontal direction.

[0012] By adopting the above technical solution, when connecting the shaft sleeve and the connecting rod, the operator inserts the connecting rod into the shaft sleeve and aligns the limiting hole with the limiting groove, and then inserts the fixing screw into the limiting hole and the limiting groove in the horizontal direction, thereby completing the fixing of the connecting rod and the shaft sleeve. This connection method is relatively simple to assemble and disassemble.

[0013] Optionally, a handle is rotatably connected to the side wall of the outer tube, and an input rod is coaxially arranged at one end of the handle located inside the outer tube. A driving gear is coaxially sleeved on the input rod, and a transmission gear is coaxially sleeved on the output rod. The driving gear and the transmission gear are both bevel gears and are meshed with each other.

[0014] By adopting the above technical solution, the handle drives the horizontal input rod to rotate, and the input rod drives the vertical output rod 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 upper end of the outer tube is threadedly connected to a rotating member coaxial with the outer tube, and the handle is rotatably connected to the side wall of the rotating member.

[0016] By adopting the above technical solution, when it is necessary to disassemble and assemble the parts in the outer tube, the operator can remove the rotating part at the upper end of the outer tube, so as to disassemble and assemble the parts inside the outer tube, which makes the operation more convenient.

[0017] Optionally, a horizontal support plate is provided on the inner wall of the rotating part, the output rod is arranged to penetrate the support plate in the vertical direction, and a horizontal gasket is arranged on the outer sleeve of the output rod. The gasket is located at the lower end of the support plate and is connected to the support plate through a plurality of first bolts, and the upper end of the sleeve is tightly arranged against the gasket.

[0018] By adopting the above technical solution, the gasket is fixed to the support plate by the first bolt, which is convenient for disassembly and assembly. The gasket plays a buffering role, reduces the pressure of the sleeve on the support plate, and plays a role in protecting the equipment.

[0019] Optionally, a plurality of vertical connecting columns are provided at the upper end of the support plate, and vertical connecting holes are opened at the upper ends of the connecting columns. The upper end of the rotating member is detachably connected to a lifting plate, and a plurality of second bolts are rotatably connected to the lifting plate. The plurality of second bolts all penetrate the lifting plate in a vertical direction and are threadedly connected to the corresponding connecting holes.

[0020] As the jack is used, the upper end of the outer tube will be worn and easily slip when lifting objects. By adopting the above technical solution, the lifting plate is installed on the upper end of the rotating part through the connecting column and the second bolt, which is convenient for replacement.

[0021] 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.

[0022] 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.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. When disassembling the jack, remove the input shaft and the connecting rod from the sleeve to separate the outer tube from the sliding member, making disassembly more convenient;

[0025] 2. When connecting the shaft sleeve and the connecting rod, the operator inserts the connecting rod into the shaft sleeve and aligns the limiting hole with the limiting groove, and then inserts the fixing screw into the limiting hole and the limiting groove in the horizontal direction to complete the fixing of the connecting rod and the shaft sleeve. This connection method is relatively simple to disassemble and assemble;

[0026] 3. The lifting plate is installed on the upper end of the rotating member through the connecting column and the second bolt, which is convenient for replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a jack that is easy to disassemble according to an embodiment of the present application.

[0028] Figure 2 It is a cross-sectional view of a jack that is easy to disassemble according to an embodiment of the present application.

[0029] Figure 3 It is a structural schematic diagram of a gasket and a first bolt of a jack that is easy to disassemble according to an embodiment of the present application.

[0030] Figure 4 It is a structural schematic diagram of a driving gear and a transmission gear of a jack that is easy to disassemble according to an embodiment of the present application.

[0031] Figure 5 It is a structural schematic diagram of an output rod, a shaft sleeve and a connecting rod of a jack that is easy to disassemble in an embodiment of the present application.

[0032] Figure 6 It is a schematic structural diagram of an output rod of a jack that is easy to disassemble according to an embodiment of the present application.

[0033] Figure 7 It is a schematic structural diagram of a shaft sleeve of a jack that is easy to disassemble according to an embodiment of the present application.

[0034] Figure 8 It is a structural schematic diagram of a connecting rod of a jack that is easy to disassemble according to an embodiment of the present application.

[0035] Explanation of the accompanying drawings: 1. outer tube; 2. inner tube; 3. sliding member; 31. screw rod; 311. support ring; 32. matching sleeve; 33. lifting member; 4. rotating member; 41. input rod; 42. driving gear; 43. transmission gear; 44. output rod; 45. handle; 46. support plate; 47. gasket; 48. first bolt; 49. connecting column; 491. connecting hole; 5. bushing; 51. polygonal groove; 52. limiting hole; 53. fixing screw; 6. connecting rod; 61. fixing groove; 7. lifting plate; 71. second bolt. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-8 This application is described in further detail.

[0037] The embodiment of the present application discloses a jack that is easy to disassemble. Figure 1 as well as Figure 2 A jack that is easy to disassemble includes an inner tube 2, an outer tube 1 and a sliding member 3. The inner tube 2 and the outer tube 1 are coaxially arranged. The inner tube 2 is used for fixing, and the sliding member 3 is used for driving the outer tube 1 to move up and down. When the outer tube 1 moves up and down, the object is lifted.

[0038] Reference Figure 2 , Figure 3 as well as Figure 4 The upper end of the outer tube 1 is threadedly connected with a rotating member 4 coaxial with the outer tube 1, and a horizontal support plate 46 is fixedly connected to the inner side wall of the rotating member 4. A handle 45 is rotatably connected to the side wall of the rotating member 4, and the handle 45 is located above the support plate 46. The handle 45 is coaxially connected to an input rod 41, and the input rod 41 is located inside the rotating member 4. A driving gear 42 is coaxially sleeved on the input rod 41. An output rod 44 is coaxially arranged in the rotating member 4, and the output rod 44 is arranged to penetrate the support plate 46 in the vertical direction. A transmission gear 43 is coaxially sleeved on the output rod 44. Both the driving gear 42 and the transmission gear 43 are bevel gears and are meshed with each other. The output rod 44 is sleeved with a horizontal gasket 47, and the gasket 47 is located at the lower end of the support plate 46. The gasket 47 is fixed to the support plate 46 by a plurality of first bolts 48. After removing the first bolts 48, the gasket 47 and the output rod 44 can be removed, and the removal is more convenient.

[0039] Reference Figure 2 as well as Figure 4 The upper end of the support plate 46 is fixedly connected with a plurality of vertically upward connecting columns 49, and the upper ends of the plurality of connecting columns 49 are each provided with a vertical connecting hole 491. The upper end of the rotating member 4 is detachably connected with a horizontal lifting plate 7, and the lifting plate 7 is rotatably connected with a plurality of vertically downward second bolts 71. The plurality of second bolts 71 all penetrate the lifting plate 7 in the vertical direction and are threadedly connected with the corresponding connecting holes 491, thereby fixing the lifting plate 7 on the rotating member 4. After removing the second bolts 71, the lifting plate 7 can be removed, and the disassembly is relatively convenient.

[0040] Reference Figure 2 as well as Figure 5 The sliding member 3 includes a screw rod 31, a matching sleeve 32 and a lifting member 33. The screw rod 31 is coaxially connected to the lower end of the connecting rod 6, and the matching sleeve 32 is sleeved on the screw rod 31. The inner ring surface of the matching sleeve 32 is threadedly matched with the screw rod 31, and the outer ring surface of the matching sleeve 32 is fixedly connected to the inner side wall of the inner tube 2. Two support rings 311 are coaxially sleeved on the screw rod 31. The two support rings 311 are located above the lifting member 33. The lifting member 33 is fixedly connected to the side wall of the screw rod 31. One end of the lifting member 33 away from the screw rod 31 is connected to the inner side wall of the outer tube 1. The lifting member 33 is located above the supporting ring. When the connecting rod 6 rotates, the screw rod 31 is driven to rotate. The screw 31 is threadedly matched with the matching sleeve 32. Since the matching sleeve 32 is fixed, the screw rod 31 will move up and down when it rotates. When the screw 31 moves up and down, the outer tube 1 is driven up and down by the lifting member 33, thereby realizing the function of the jack.

[0041] Reference Figure 6 , Figure 7 as well as Figure 8The cross section of the lower end of the output rod 44 is a regular hexagon, and the lower end of the output rod 44 is covered with a sleeve 5. The internal space of the sleeve 5 is a regular hexagonal groove corresponding to the size of the lower end of the output rod 44. The lower end of the sleeve 5 is coaxially connected with a connecting rod 6. The cross section of the upper end of the connecting rod 6 is a polygon corresponding to the size of the polygonal groove 51. A fixing groove 61 is provided on the side wall of the screw 31, and a limiting hole 52 coaxial with the fixing groove 61 and of the same size is provided on the side wall of the sleeve 5. A fixing screw 53 is slidably connected in the limiting hole 52. The fixing screw 53 passes through the limiting hole 52 and the limiting groove in the horizontal direction, so as to fix the connecting rod 6 and the sleeve 5. The output rod 44 is connected to the connecting rod 6 through the sleeve 5. When disassembling, the output rod 44, the connecting rod 6 and the sleeve 5 can be separated after removing the fixing screw 53, and the disassembly is relatively convenient.

[0042] The implementation principle of a jack that is easy to disassemble according to an embodiment of the present application is as follows: when disassembling the jack, the operator can remove the lifting plate 7 after removing the multiple second bolts 71, and complete the separation of the outer tube 1 and the sliding member 3 after moving the input rod 41 out of the sleeve 5. After removing the first bolt 48, the gasket 47 and the output shaft can be removed from the rotating member 4, and after taking the fixing screw 53 out of the fixing groove 61, the sleeve 5 can be separated from the connecting rod 6, so that the disassembly of the various components of the jack is relatively convenient, and the replacement of the components of the jack is convenient.

[0043] 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 that is easy to disassemble, characterized in that: The invention comprises an inner tube (2), an outer tube (1) and a sliding member (3), wherein the inner tube (2) and the outer tube (1) are coaxially arranged and slidably connected, and the sliding member (3) is used to drive the inner tube (2) and the outer tube (1) to slide relative to each other, and an output rod (44) is coaxially arranged inside the outer tube (1), and a shaft sleeve (5) is coaxially arranged outside the lower end of the output rod (44), and the cross section of the lower end of the output rod (44) is polygonal, and the internal space of the shaft sleeve (5) is a polygonal groove (51) corresponding to the size of the lower end of the output rod (44), and the lower end of the shaft sleeve (5) is coaxially connected to a connecting rod (6), and the cross section of the upper end of the connecting rod (6) is a polygon corresponding to the size of the polygonal groove (51), and the lower end of the connecting rod (6) is connected to the sliding member (3).

2. The jack that is easy to disassemble according to claim 1, characterized in that: The sliding member (3) comprises a screw rod (31), a matching sleeve (32) and a lifting member (33); the screw rod (31) is coaxially arranged in the inner tube (2); the cross section of the upper end of the screw rod (31) is a regular hexagon and the upper end of the screw rod (31) is inserted into the shaft sleeve (5); the matching sleeve (32) is externally mounted on the screw rod (31); the inner annular surface of the matching sleeve (32) is threadably matched with the screw rod (31); the outer annular surface of the matching sleeve (32) is fixedly connected to the inner side wall of the inner tube (2); the lifting member (33) is arranged on the side wall of the screw rod (31); one end of the lifting member (33) away from the screw rod (31) is connected to the inner side wall of the outer tube (1); and the lifting member (33) is located directly above the matching sleeve (32).

3. The jack that is easy to disassemble according to claim 2, characterized in that: A fixing groove (61) is provided on the side wall of the screw rod (31), and a limiting hole (52) coaxial with the fixing groove (61) and having the same size as the fixing groove (61) is provided on the side wall of the shaft sleeve (5). A fixing screw (53) is slidably connected in the limiting hole (52), and the fixing screw (53) is arranged to penetrate the limiting hole (52) and the fixing groove (61) in a horizontal direction.

4. The jack that is easy to disassemble according to claim 1, characterized in that: A handle (45) is rotatably connected to the side wall of the outer tube (1); an input rod (41) is coaxially arranged at one end of the handle (45) located inside the outer tube (1); a driving gear (42) is coaxially sleeved on the input rod (41); a transmission gear (43) is coaxially sleeved on the output rod (44); the driving gear (42) and the transmission gear (43) are both bevel gears and are meshed with each other.

5. The jack that is easy to disassemble according to claim 4, characterized in that: The upper end of the outer tube (1) is threadedly connected to a rotating member (4) coaxial with the outer tube (1), and the handle (45) is rotatably connected to the side wall of the rotating member (4).

6. The jack that is easy to disassemble according to claim 5, characterized in that: A horizontal support plate (46) is provided on the inner wall of the rotating member (4); the output rod (44) is arranged to penetrate the support plate (46) in the vertical direction; a horizontal gasket (47) is outer-mounted on the output rod (44); the gasket (47) is located at the lower end of the support plate (46) and is connected to the support plate (46) via a plurality of first bolts (48); and the upper end of the shaft sleeve (5) is tightly arranged against the gasket (47).

7. The jack that is easy to disassemble according to claim 6, characterized in that: A plurality of vertical connection columns (49) are provided at the upper end of the support plate (46), and a vertical connection hole (491) is provided at the upper end of each of the connection columns (49). A lifting plate (7) is detachably connected to the upper end of the rotating member (4), and a plurality of second bolts (71) are rotatably connected to the lifting plate (7). The plurality of second bolts (71) are all threadedly connected to the corresponding connection holes (491) after penetrating the lifting plate (7) in a vertical direction.

8. The jack that is easy to disassemble according to claim 2, characterized in that: The screw rod (31) has two support rings (311) coaxially disposed on the sleeve, and the two support rings (311) are located between the lifting member (33) and the matching sleeve (32) in the vertical direction.

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