Vehicle support with positioning and self-locking functions

Abstract

The utility model discloses a vehicle support with positioning and self-locking functions, and relates to the technical field of vehicle maintenance, the vehicle support comprises a lifting frame and a self-locking mechanism arranged on the outer wall of the lifting frame, and the self-locking mechanism comprises a limiting assembly, a positioning assembly and a self-locking assembly; the limiting assembly comprises a rack and a limiting groove, the rack is slidably connected to the inner wall of the lifting frame, and the limiting groove slidably connected with the inner wall of the lifting frame is formed in the outer wall of the rack; the positioning assembly comprises a pin shaft, a pawl, a handle and a spring, a locking steel wire and a self-locking clamping rod are arranged, the spring drives the pawl at one end of the handle to rotate reversely through self-elasticity, so that the pawl is meshed with the meshing face of the outer wall of the rack, and positioning operation on the rack is achieved; and the locking steel wire is buckled into the self-locking clamping rod through the S-shaped part of the locking steel wire, so that the pawl is fixed through the pulling force of the locking steel wire, the positioning and self-locking operation of the rack is realized, and unexpected overturning is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle maintenance, in particular to a vehicle bracket with a positioning and self-locking function. Background Art

[0002] Car maintenance is a general term for car maintenance and repair, which is to use technical means to check the faulty car, find out the cause of the fault, and take certain measures to eliminate the fault and restore it to a certain performance and safety standard. Car maintenance includes car overhaul and car minor repair. Car overhaul refers to the restorative repair that repairs or replaces any parts of the car to restore the car's good technical condition and completely restore the car's life, while car minor repair refers to the operational repair that replaces or repairs individual parts to ensure or restore the working ability of the car. During car maintenance, in order to enable the maintenance personnel to understand the condition of the car more intuitively, the vehicle needs to be jacked up and supported by a vehicle stand.

[0003] When the existing vehicle bracket is in use, an elastic mechanism is installed on the pawl of the vehicle bracket to provide locking force for the pawl at all times. However, the handle on the outer wall of the pawl is exposed to the outside of the vehicle bracket. During maintenance, the external handle is prone to unexpected collision, the locking force between the pawl and the rack is reduced, and the pawl and the rack are separated, resulting in a decrease in the supporting force of the vehicle bracket, which is prone to safety accidents and does not meet people's use needs. For this reason, we propose a vehicle bracket with a positioning self-locking function. Utility Model Content

[0004] The utility model aims to provide a vehicle bracket with a positioning and self-locking function to solve the problems in the above background technology that the handle is prone to unexpected collision, the locking force between the pawl and the rack is reduced, and the pawl and the rack are separated.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vehicle stand with positioning and self-locking function, comprising a lifting frame and a self-locking mechanism arranged on the outer wall of the lifting frame, wherein the self-locking mechanism comprises a limit assembly, a positioning assembly and a self-locking assembly;

[0006] The limiting assembly includes a rack and a limiting groove, the inner wall of the lifting frame is slidably connected with the rack, and the outer wall of the rack is provided with a limiting groove slidably connected with the inner wall of the lifting frame;

[0007] The positioning assembly includes a pin, a pawl, a handle and a spring. The inner wall of the lifting frame is screwed with a pin on one side of the rack. The outer wall of the pin is screwed with a pawl meshing with the meshing surface of the rack. One end of the pawl is fixedly connected to the handle. The bottom end of the handle is fixedly connected to a spring fixedly connected to the inner wall of the lifting frame.

[0008] The self-locking assembly includes a locking steel wire and a self-locking clamping rod. The side wall of the handle is screwed with the locking steel wire. One end of the locking steel wire is located above the ratchet and is clamped with a self-locking clamping rod fixedly connected to the outer wall of the lifting frame.

[0009] Based on the above structure, the spring drives the pawl at one end of the handle to rotate in the opposite direction through its own elastic force, so that the pawl is in meshing state with the meshing surface of the outer wall of the rack, thereby realizing the positioning operation of the rack. Then the staff rotates the locking wire so that the locking wire is buckled into the self-locking rod through its "S"-shaped part, so that the pawl is fixed by the tension of the locking wire, thereby realizing the positioning self-locking operation of the rack and preventing unexpected flipping.

[0010] Preferably, the bottom end of the lifting frame is fixedly connected to a supporting frame, the bottom end of the supporting frame is fixedly connected to a supporting block, the top end of the rack is fixedly connected to an adjusting frame, an adjusting bolt passes through the inner wall of the adjusting frame, the outer wall of the adjusting bolt is threadedly connected to a sliding hole plate, the outer wall of the sliding hole plate is provided with a sliding hole groove, the inner wall of the sliding hole groove is movably connected with a connecting column, a limiting sliding groove is provided at the connecting portion between the connecting column and the adjusting frame, one end of the connecting column is screwed with a connecting rod, the top end of the connecting rod is screwed with a sliding slider slidably connected to the inner wall of the adjusting frame, and the top of the sliding slider is fixedly connected to a load-bearing block.

[0011] Preferably, the pawl forms a rotating structure with the handle, the spring and the pin shaft, and the rack forms a positioning structure with the pawl and the lifting frame.

[0012] Preferably, the pawl forms a self-locking structure with the lifting frame through a locking steel wire and a self-locking clamping rod, and the locking steel wire has an "S" shape.

[0013] Preferably, the connecting column forms a lifting structure through the sliding hole groove and the limiting sliding groove, and two groups of connecting rods are provided.

[0014] Preferably, the load-bearing block forms a sliding structure with the adjustment frame through a connecting rod and a sliding slider.

[0015] Preferably, a groove is provided at the top of the load-bearing block.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The vehicle bracket with positioning and self-locking function is provided with a locking steel wire and a self-locking clamp rod. The spring drives the pawl at one end of the handle to rotate in the opposite direction through its own elastic force, so that the pawl is in a meshing state with the meshing surface of the outer wall of the rack, thereby realizing the positioning operation of the rack. Then the staff rotates the locking steel wire so that the locking steel wire is buckled into the self-locking clamp rod through its "S"-shaped part, so that the pawl is fixed by the tension of the locking steel wire, thereby realizing the positioning and self-locking operation of the rack and preventing unexpected flipping.

[0018] 2. The vehicle bracket with positioning and self-locking function is provided with a load-bearing block. The sliding hole groove slides to drive the connecting column to slide vertically along the outer wall of the limiting sliding groove, so that the connecting column slides through the connecting rod to drive the load-bearing block at the top of the sliding slider to slide along the top of the adjusting frame. Through the relative sliding of the two groups of load-bearing blocks, the support operation of vehicles of different sizes is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the ratchet and rack engagement structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the connection structure of the steel wire and the self-locking clamp rod of the utility model;

[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of the adjustment frame of the utility model.

[0023] In the figure: 1. lifting frame; 2. rack; 3. limiting groove; 4. pin shaft; 5. pawl; 6. handle; 7. spring; 8. steel wire; 9. self-locking lever; 10. supporting frame; 1001. supporting block; 11. adjusting frame; 1101. adjusting bolt; 1102. sliding hole plate; 1103. sliding hole groove; 1104. connecting column; 1105. limiting slide groove; 1106. connecting rod; 1107. sliding slider; 1108. load-bearing block. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figures 1 to 4In an embodiment of the utility model, a vehicle stand with a positioning and self-locking function comprises a lifting frame 1 and a self-locking mechanism arranged on the outer wall of the lifting frame 1, wherein the self-locking mechanism comprises a limiting component, a positioning component and a self-locking component;

[0026] The limiting assembly includes a rack 2 and a limiting groove 3. The inner wall of the lifting frame 1 is slidably connected with the rack 2, and the outer wall of the rack 2 is provided with a limiting groove 3 which is slidably connected with the inner wall of the lifting frame 1.

[0027] The positioning assembly includes a pin 4, a pawl 5, a handle 6 and a spring 7. The inner wall of the lifting frame 1 is located on one side of the rack 2 and is screwed with the pin 4. The outer wall of the pin 4 is screwed with the pawl 5 meshing with the meshing surface of the rack 2. One end of the pawl 5 is fixedly connected to the handle 6. The bottom end of the handle 6 is fixedly connected to the spring 7 fixedly connected to the inner wall of the lifting frame 1.

[0028] The self-locking component includes a locking wire 8 and a self-locking rod 9. The locking wire 8 is screwed onto the side wall of the handle 6. One end of the locking wire 8 is located above the pawl 5 and is engaged with the self-locking rod 9 fixedly connected to the outer wall of the lifting frame 1.

[0029] Based on the above structure, the spring 7 drives the pawl 5 at one end of the handle 6 to rotate in the opposite direction through its own elastic force, so that the pawl 5 is in meshing state with the meshing surface of the outer wall of the rack 2, thereby realizing the positioning operation of the rack 2. Then the staff rotates the locking wire 8 so that the locking wire 8 is buckled into the self-locking rod 9 through its "S"-shaped part, so that the pawl 5 is fixed by the tension of the locking wire 8, thereby realizing the positioning self-locking operation of the rack 2 and preventing unexpected flipping.

[0030] Furthermore, the bottom end of the lifting frame 1 is fixedly connected to the supporting frame 10, the bottom end of the supporting frame 10 is fixedly connected to the supporting block 1001, the top of the rack 2 is fixedly connected to the adjusting frame 11, the inner wall of the adjusting frame 11 is penetrated by an adjusting bolt 1101, the outer wall of the adjusting bolt 1101 is threadedly connected to a sliding hole plate 1102, the outer wall of the sliding hole plate 1102 is provided with a sliding hole groove 1103, the inner wall of the sliding hole groove 1103 is movably connected to a connecting column 1104, the connecting portion between the connecting column 1104 and the adjusting frame 11 is provided with a limiting sliding groove 1105, one end of the connecting column 1104 is screwed with a connecting rod 1106, the top of the connecting rod 1106 is screwed with a sliding slider 1107 slidably connected to the inner wall of the adjusting frame 11, and the top of the sliding slider 1107 is fixedly connected to a load-bearing block 1108.

[0031] In this embodiment, the adjusting bolt 1101 rotates to drive the sliding hole groove 1103 on the outer wall of the sliding hole plate 1102 to slide through the thread, and the sliding hole groove 1103 slides to drive the connecting column 1104 to slide vertically along the outer wall of the limiting sliding groove 1105, so that the connecting column 1104 slides through the connecting rod 1106 to drive the load-bearing block 1108 at the top of the sliding slider 1107 to slide along the top of the adjusting frame 11, and the relative sliding of the two groups of load-bearing blocks 1108 is realized to support vehicles of different sizes.

[0032] Furthermore, the pawl 5 forms a rotating structure with the pin shaft 4 through the handle 6 and the spring 7 , and the rack 2 forms a positioning structure with the lifting frame 1 through the pawl 5 .

[0033] In this embodiment, the spring 7 drives the pawl 5 at one end of the handle 6 to rotate in the opposite direction through its own elastic force, so that the pawl 5 is in meshing state with the meshing surface of the outer wall of the rack 2, thereby realizing the positioning operation of the rack 2.

[0034] Furthermore, the pawl 5 forms a self-locking structure with the lifting frame 1 through the locking wire 8 and the self-locking clamping rod 9, and the locking wire 8 has an "S" shape.

[0035] In this embodiment, the staff rotates the locking wire 8 so that the locking wire 8 is buckled into the self-locking rod 9 through its "S"-shaped portion, so that the pawl 5 is fixed by the tension of the locking wire 8, thereby realizing the positioning self-locking operation of the rack 2 and preventing unexpected flipping.

[0036] Furthermore, the connecting column 1104 forms a lifting structure through the sliding hole groove 1103 and the limiting sliding groove 1105, and two groups of connecting rods 1106 are provided.

[0037] In this embodiment, the sliding hole 1103 slides to drive the connecting column 1104 to slide vertically along the outer wall of the limiting sliding groove 1105, thereby realizing the control operation of the vertical sliding of the connecting column 1104.

[0038] Furthermore, the load-bearing block 1108 forms a sliding structure with the adjustment frame 11 through the connecting rod 1106 and the sliding slider 1107 .

[0039] In this embodiment, the connecting column 1104 slides through the connecting rod 1106 to drive the load-bearing block 1108 at the top of the sliding slider 1107 to slide along the top of the adjustment frame 11. Through the relative sliding of the two groups of load-bearing blocks 1108, the support operation for vehicles of different sizes is achieved.

[0040] Furthermore, a groove is provided at the top of the load-bearing block 1108 .

[0041] In this embodiment, a groove is provided at the top of the load-bearing block 1108 to achieve stable support operation of the vehicle.

[0042] The working principle of the utility model is as follows: when using the vehicle bracket with a positioning and self-locking function, first, the rack 2 is raised and lowered, and the staff overcomes the elastic force of the spring 7 to press the handle 6, and the movement of the handle 6 drives the pawl 5 to rotate so that the pawl 5 is separated from the rack 2. Then, the staff pulls the rack 2 so that the limiting groove 3 on the outer wall of the rack 2 slides vertically along the inner wall of the lifting frame 1, thereby improving the stability of the movement of the rack 2.

[0043] Next, the rack 2 is positioned and self-locked. The staff releases the handle 6, and the spring 7 drives the pawl 5 at one end of the handle 6 to rotate in the opposite direction through its own elastic force, so that the pawl 5 is in meshing state with the meshing surface of the outer wall of the rack 2, thereby realizing the positioning operation of the rack 2. Then the staff rotates the locking wire 8 so that the locking wire 8 is buckled into the self-locking rod 9 through its "S"-shaped part, so that the pawl 5 is fixed by the tension of the locking wire 8, thereby realizing the positioning and self-locking operation of the rack 2 and preventing unexpected flipping.

[0044] Finally, the support area of ​​the load-bearing block 1108 at the top of the rack 2 is adjusted. The staff turns the adjusting bolt 1101. The adjusting bolt 1101 rotates to drive the sliding hole groove 1103 on the outer wall of the sliding hole plate 1102 to slide through the thread. The sliding hole groove 1103 slides and drives the connecting column 1104 to slide vertically along the outer wall of the limiting sliding groove 1105, so that the connecting column 1104 slides through the connecting rod 1106 to drive the load-bearing block 1108 at the top of the sliding slider 1107 to slide along the top of the adjusting frame 11. Through the relative sliding of the two groups of load-bearing blocks 1108, the support operation for vehicles of different sizes is realized.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A vehicle stand with a positioning self-locking function, comprising a lifting frame (1) and a self-locking mechanism arranged on the outer wall of the lifting frame (1), characterized in that: The self-locking mechanism includes a limit component, a positioning component and a self-locking component; The limiting assembly comprises a rack (2) and a limiting groove (3); the inner wall of the lifting frame (1) is slidably connected to the rack (2); and the outer wall of the rack (2) is provided with a limiting groove (3) slidably connected to the inner wall of the lifting frame (1); The positioning assembly comprises a pin shaft (4), a ratchet (5), a handle (6) and a spring (7); the inner wall of the lifting frame (1) is screwed with a pin shaft (4) on one side of the rack (2); the outer wall of the pin shaft (4) is screwed with a ratchet (5) meshing with the meshing surface of the rack (2); one end of the ratchet (5) is fixedly connected to the handle (6); the bottom end of the handle (6) is fixedly connected to the spring (7) fixedly connected to the inner wall of the lifting frame (1); The self-locking assembly comprises a locking steel wire (8) and a self-locking clamping rod (9); the locking steel wire (8) is screwed onto the side wall of the handle (6); one end of the locking steel wire (8) is located above the ratchet (5) and is clamped with a self-locking clamping rod (9) fixedly connected to the outer wall of the lifting frame (1).

2. The vehicle bracket with positioning self-locking function according to claim 1, characterized in that: The bottom end of the lifting frame (1) is fixedly connected to a support frame (10), the bottom end of the support frame (10) is fixedly connected to a support block (1001), the top end of the rack (2) is fixedly connected to an adjustment frame (11), an adjustment bolt (1101) penetrates the inner wall of the adjustment frame (11), the outer wall of the adjustment bolt (1101) is threadedly connected to a sliding hole plate (1102), the outer wall of the sliding hole plate (1102) is provided with a sliding hole groove (1103), The inner wall of the sliding hole groove (1103) is movably connected with a connecting column (1104), and a limit sliding groove (1105) is provided at the connection position between the connecting column (1104) and the adjustment frame (11). A connecting rod (1106) is screwed to one end of the connecting column (1104), and a sliding slider (1107) slidably connected to the inner wall of the adjustment frame (11) is screwed to the top of the connecting rod (1106), and a load-bearing block (1108) is fixedly connected to the top of the sliding slider (1107).

3. The vehicle bracket with positioning self-locking function according to claim 1, characterized in that: The ratchet (5) forms a rotating structure with the pin shaft (4) through the handle (6) and the spring (7), and the rack (2) forms a positioning structure with the lifting frame (1) through the ratchet (5).

4. The vehicle bracket with positioning self-locking function according to claim 1, characterized in that: The ratchet (5) forms a self-locking structure with the lifting frame (1) through a locking steel wire (8) and a self-locking clamping rod (9), and the locking steel wire (8) has an "S" shape.

5. The vehicle bracket with positioning self-locking function according to claim 2, characterized in that: The connecting column (1104) forms a lifting structure through the sliding hole groove (1103) and the limiting sliding groove (1105), and two groups of connecting rods (1106) are provided.

6. The vehicle bracket with positioning self-locking function according to claim 2, characterized in that: The load-bearing block (1108) forms a sliding structure with the adjustment frame (11) via the connecting rod (1106) and the sliding slider (1107).

7. The vehicle bracket with positioning self-locking function according to claim 2, characterized in that: The top of the load-bearing block (1108) is provided with a groove.

Images