Safety support for automobile maintenance

Abstract

The utility model discloses an automobile maintenance safety support, and relates to the technical field of automobile maintenance, the automobile maintenance safety support comprises a fixing frame, a lifting frame and a lifting driving mechanism, the fixing frame comprises a bottom frame, a first square sleeve and a threaded sleeve; the lifting frame comprises a second square sleeve, a screw rod and a bearing, the first square sleeve is in threaded connection with the screw rod through a threaded sleeve, and the second square sleeve is rotationally driven by the screw rod to be in sliding connection in the axial direction of the first square sleeve; the lifting driving mechanism comprises a gear box and a rocking handle, the rocking handle drives the screw to rotate through a gear structure, and a supporting base is fixed to the top of the gear box. According to the safety support, the height of the supporting seat can be freely increased and decreased, the structure is firm and stable, supporting below an automobile chassis is stable, and safe protection measures are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile maintenance, in particular to an automobile maintenance safety bracket. Background Art

[0002] The car repair safety bracket is a special support bracket for car repair safety protection measures. When repairing the chassis of a car, a lift is required to raise the car to a certain height to check the repair. When the chassis screws are subjected to force during disassembly and installation, the vehicle is easily swung by external forces and loses balance, causing tilt and rollover, resulting in safety accidents. For this reason, we provide a car repair safety bracket that can provide auxiliary support under the chassis to effectively improve the safety of the operation. Utility Model Content

[0003] The utility model aims to provide a safety bracket for automobile maintenance, which solves the problem that auxiliary support is needed when the chassis of an automobile is lifted for maintenance.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a car maintenance safety bracket, comprising a fixing frame, a lifting frame and a lifting drive mechanism, the fixing frame comprising a base frame, a square sleeve and a threaded sleeve, the base frame is fixed to the bottom of the square sleeve, and the threaded sleeve is fixed inside the tube body of the square sleeve;

[0005] The lifting frame comprises a second square sleeve, a screw and a bearing, wherein the bearing is fixed inside the body of the second square sleeve, the second square sleeve is rotatably connected to the screw through the bearing, the first square sleeve is threadedly connected to the screw through a threaded sleeve, and the second square sleeve is driven by the screw to slide along the axial direction of the first square sleeve;

[0006] The lifting drive mechanism includes a gear box and a crank handle. The gear box body is fixed on the top of the second square sleeve. The gear box is connected to the screw rod through a gear structure. The crank handle is connected to the gear structure. The crank handle drives the screw rod to rotate through the gear structure. The support seat is fixed on the top of the gear box.

[0007] Preferably, a limiting ring is provided at the bottom of the screw, and the limiting ring is located inside a square sleeve.

[0008] Preferably, the second square sleeve is sleeved outside the first square sleeve, and the inner cavity of the second square sleeve and the outer wall of the first square sleeve are both square and have matching sizes.

[0009] Preferably, latch holes are arranged at intervals along the height direction on an upper side of the square sleeve, and safety latches are inserted into the latch holes.

[0010] Preferably, the gear structure of the gear box includes bevel gear 1, bevel gear 2 and a rotating shaft. Bevel gear 1 in the gear box is meshed with bevel gear 2. Bevel gear 1 is mounted on the top of the screw, and bevel gear 2 is mounted on the rotating shaft. The rotating shaft is transversely assembled in the gear box body and rotatably connected. The crank handle is fixed at one end of the rotating shaft.

[0011] The utility model has the following beneficial effects:

[0012] 1. The safety bracket can freely raise and lower the height of the support seat through the lifting frame, and support the stability under the car chassis to achieve safe protection measures;

[0013] 2. The lifting frame is lifted and lowered on the fixed frame. The tail end of the screw is protected by a second square sleeve outside a first square sleeve to strengthen the structural strength of the connection position. The structure is firm and stable.

[0014] 3. A safety latch is installed on the fixed frame to further improve safety;

[0015] 4. The lifting drive mechanism drives the lifting frame to move up and down, which is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional diagram of the safety bracket of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the fixed frame, lifting frame and lifting drive mechanism of the utility model;

[0018] Figure 3 This is a diagram of the lifting state of the safety bracket of the utility model.

[0019] In the figure: 1. fixed frame; 11. base frame; 12. square sleeve 1; 121. latch hole; 13. threaded sleeve; 2. lifting frame; 21. square sleeve 2; 22. screw; 221. limit ring; 23. bearing; 3. lifting drive mechanism; 31. gear box; 311. bevel gear 1; 312. bevel gear 2; 313. rotating shaft; 32. crank handle; 4. support seat; 5. safety latch. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figure 1-3As shown, the utility model provides a technical solution: a car maintenance safety bracket, including a fixing frame 1, a lifting frame 2 and a lifting drive mechanism 3, the fixing frame 1 includes a base frame 11, a square sleeve 12 and a threaded sleeve 13, the outer end of the base frame 11 can be equipped with a universal wheel for easy movement, the base frame 11 is fixed to the bottom of the square sleeve 12, and the threaded sleeve 13 is fixed inside the tube body of the square sleeve 12;

[0022] The lifting frame 2 includes a square sleeve 21, a screw 22 and a bearing 23. The bearing 23 is fixed inside the body of the square sleeve 21. The square sleeve 21 is rotatably connected to the screw 22 through the bearing 23. The square sleeve 12 is threadedly connected to the screw 22 through the threaded sleeve 13. A limit ring 221 is arranged at the bottom of the screw 22, and the limit ring 221 is located inside the square sleeve 12. The square sleeve 21 is driven by the screw 22 to slide along the axial direction of the square sleeve 12. The square sleeve 21 is sleeved outside the square sleeve 12, and the inner cavity of the square sleeve 21 and the outer wall of the square sleeve 12 are both square and have matching sizes. The square sleeve 12 and the square sleeve 21 are both thickened sleeves. Pin holes 121 are evenly spaced on opposite sides of the square sleeve 12 along the height direction, and the pin holes 121 on both sides are staggered along the height direction. Safety pins 5 are inserted into the pin holes 121.

[0023] The lifting drive mechanism 3 includes a gear box 31 and a crank 32. The housing of the gear box 31 is fixed on the top of the square sleeve 21. The gear box 31 is connected to the high-strength screw 22 through a gear structure. The crank 32 is connected to the gear structure. The crank 32 drives the screw 22 to rotate through the gear structure. The support seat 4 is fixed on the top of the gear box 31. A screw top rod is longitudinally arranged on the support seat 4. When the support seat 4 supports the bottom of the automobile chassis, the position that cannot be supported is adjusted to be pushed onto the automobile chassis to improve the support stability. The gear structure of the gear box 31 includes a bevel gear 1 311, a bevel gear 2 312 and a rotating shaft 313. The bevel gear 1 311 in the gear box 31 is meshed with the bevel gear 2 312. The bevel gear 1 311 is mounted on the top of the screw 22. The bevel gear 2 312 is mounted on the rotating shaft 313. The rotating shaft 313 is horizontally assembled in the housing of the gear box 31 for rotational connection. The crank 32 is fixed at one end of the rotating shaft 313.

[0024] When in use, the crank handle 32 is manually turned to drive the screw rod 22 to rotate through the meshing of the bevel gear 1 311 and the bevel gear 2 312. The screw rod 22, under the thread restriction of the threaded sleeve 13, drives the lifting frame 2, the lifting drive mechanism 3 and the support seat 4 to move up and down along the axial direction of the fixed frame 1 as a whole, and can be lifted up under the automobile chassis and supported on the chassis bracket for auxiliary support.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vehicle maintenance safety bracket, comprising a fixing bracket (1), a lifting bracket (2) and a lifting drive mechanism (3), characterized in that: The fixing frame (1) comprises a base frame (11), a square sleeve (12) and a threaded sleeve (13); the base frame (11) is fixed to the bottom of the square sleeve (12), and the threaded sleeve (13) is fixed inside the body of the square sleeve (12); The lifting frame (2) comprises a second square sleeve (21), a screw (22) and a bearing (23); the bearing (23) is fixed inside the tube body of the second square sleeve (21); the second square sleeve (21) is rotatably connected to the screw (22) via the bearing (23); the first square sleeve (12) is threadedly connected to the screw (22) via the threaded sleeve (13); the second square sleeve (21) is rotatably driven by the screw (22) to slide along the axial direction of the first square sleeve (12); The lifting drive mechanism (3) comprises a gear box (31) and a crank (32); the housing of the gear box (31) is fixed to the top of the second square sleeve (21); the gear box (31) is connected to the screw rod (22) via a gear structure; the crank (32) is connected to the gear structure; the crank (32) drives the screw rod (22) to rotate via the gear structure; and the top of the gear box (31) is fixed to a support seat (4).

2. The automobile maintenance safety bracket according to claim 1, characterized in that: A limiting ring (221) is provided at the bottom of the screw rod (22), and the limiting ring (221) is located inside the square sleeve (12).

3. The automobile maintenance safety bracket according to claim 1, characterized in that: The square sleeve 2 (21) is sleeved outside the square sleeve 1 (12), and the inner cavity of the square sleeve 2 (21) and the outer wall of the square sleeve 1 (12) are both square and have matching sizes.

4. The automobile maintenance safety bracket according to claim 1, characterized in that: Pin holes (121) are arranged at intervals along the height direction on the square sleeve (12), and safety pins (5) are inserted into the pin holes (121).

5. The automobile maintenance safety bracket according to claim 1, characterized in that: The gear structure of the gear box (31) comprises a bevel gear 1 (311), a bevel gear 2 (312) and a rotating shaft (313); the bevel gear 1 (311) in the gear box (31) meshes with the bevel gear 2 (312); the bevel gear 1 (311) is mounted on the top of the screw rod (22); the bevel gear 2 (312) is mounted on the rotating shaft (313); the rotating shaft (313) is transversely mounted in the gear box (31) body for rotational connection; and the crank handle (32) is fixed to one end of the rotating shaft (313).

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