Double-insurance trailer lock

Abstract

The utility model relates to the technical field of double-insurance trailer locks, in particular to a double-insurance trailer lock which comprises a shell and a second protection pad, the top of the shell is fixedly connected with the bottom of the second protection pad, the bottom of the shell is fixedly connected with a transverse plate, the inner wall of the transverse plate is connected with a fixing structure, and the left side and the right side of the front face of the shell are fixedly connected with straight plates respectively. A clamping plate is located outside a wheel of the accident vehicle through a fixing structure, then a handle is matched to enable a first screw rod to rotate on the inner wall of a support, the rotating first screw rod is gradually screwed into the inner wall of a transverse plate, and meanwhile the first screw rod drives the support to move towards the inner side; the movable support drives the clamping plates to move towards the inner side, the upper portions of the outer walls of the clamping plates are inserted into a gap of a hub until the two clamping plates are in butt joint, fixing of an accident vehicle is completed, the contact face is increased, the safety and stability of the double-insurance trailer lock are guaranteed, and the using limitation of the double-insurance trailer lock is eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of double-safety trailer locks, in particular to a double-safety trailer lock. Background Art

[0002] The trailer lock can fix the vehicle that has been in an accident on the trailer's deck to prevent the accident vehicle from detaching while the trailer is moving. Usually, one side of the trailer lock needs to be installed on the trailer pallet and the other side needs to be installed on the wheel of the accident vehicle. After the fixation is completed, the trailer pallet is controlled to move to drive the accident vehicle to the trailer platform, and its position is locked by the trailer lock during transportation.

[0003] For example, the authorization announcement number is "CN219220068U", which is an adjustable length double-insurance trailer lock. Through the matching of the internal thread and the external thread, the adjustment sleeve can move axially along the large diameter end. Through the axial movement of the adjustment sleeve relative to the lock rod, the effective length of the lock rod is adjustable. The effective length of the lock rod is basically the same as the required length between the actual family car and the trailer, which minimizes the movement of the lock rod during use and makes the connection of the trailer lock more stable. However, when the double-insurance trailer lock is used, it is fixed by a connection port that passes through the accident vehicle and the trailer, which will result in a smaller contact surface of the double-insurance trailer lock. When the trailer is bumpy and swaying, the double-insurance trailer lock itself passes through the connection ports of the two vehicle bodies, and the accident vehicle is fixed on the trailer at the back, which will cause the impact force of the two connection ports to intersect, causing the double-insurance trailer lock to damage the connection port of the vehicle body and expand the connection port of the vehicle body. When the impact force is large, it is easy to break the lock rod of the double-insurance trailer lock, resulting in poor safety and stability of the double-insurance trailer lock, which makes the double-insurance trailer lock have usage limitations. Utility Model Content

[0004] The utility model aims to solve the problem that the double-insurance trailer lock has poor safety and stability and has usage limitations, and proposes a double-insurance trailer lock.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A double-safety trailer lock is designed, comprising an outer shell and a second protective pad, the top of the outer shell is fixedly connected to the bottom of the second protective pad, the bottom of the outer shell is fixedly connected to a horizontal plate, the inner wall of the horizontal plate is connected to a fixing structure, the left and right sides of the front surface of the outer shell are respectively fixedly connected to straight plates, the inner side of the straight plate is rotatably connected to a protrusion, the inner wall of the protrusion is connected to a control structure, and the outer wall of the control structure is connected to a plurality of bolts.

[0007] Preferably, the fixing structure includes a first screw and a bracket, the outer wall of the first screw is threadedly connected to the inner wall of the cross plate, the outer wall end of the first screw is rotatably connected to the inner wall of the bracket, a handle is fixed to the outer side of the first screw, a splint is fixed to the top of the bracket, and a first protective pad is fixed to the inner wall of the splint.

[0008] Preferably, the lower part of the outer wall of the clamping plate is plugged into the inner wall of the outer shell.

[0009] Preferably, the control structure includes a round rod and a sleeve, the top of the outer wall of the round rod is fixedly connected to the inner wall of the protrusion, the bottom of the outer wall of the round rod is rotatably connected to the top of the sleeve, the inner wall of the sleeve is threadedly connected to a second screw, and the lower part of the outer wall of the second screw is rotatably connected to a vertical plate.

[0010] Preferably, the bottom of the vertical plate is fixedly connected to a bottom plate.

[0011] Preferably, a plurality of bolts are threadedly connected to the top of the outer wall of the base plate.

[0012] The double-safety trailer lock proposed by the utility model has the beneficial effects of: the clamping plate is located outside the wheel of the accident vehicle through the fixing structure, and then the first screw is rotated on the inner wall of the bracket in cooperation with the handle, and the rotating first screw is gradually screwed into the inner wall of the cross plate, and at the same time, the first screw moves inward with the bracket, and the moving bracket moves inward with the clamping plate, so that the upper position of the outer wall of the clamping plate is inserted into the gap of the vehicle hub until the two clamping plates are butted, thereby completing the fixation of the accident vehicle, increasing the contact surface, ensuring the safety and stability of the double-safety trailer lock, and eliminating the limitations of the use of the double-safety trailer lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 for Figure 1 A schematic diagram of the connection relationship between the middle round rod, the sleeve and the second screw;

[0015] Figure 3 for Figure 1 The structural diagram of A in the figure;

[0016] Figure 4 for Figure 1 Schematic diagram of the connection relationship between the middle cross plate, the first screw and the bracket.

[0017] In the figure: 1, shell, 2, fixing structure, 201, first screw, 202, bracket, 203, handle, 204, clamp, 205, first pad, 3, control structure, 301, round rod, 302, sleeve, 303, second screw, 304, vertical plate, 305, bottom plate, 4, second pad, 5, horizontal plate, 6, straight plate, 7, bump, 8, bolt, 9, horizontal bar, 10, sleeve. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings: Example

[0019] See also Figure 1-4 In the present embodiment, a double-insurance trailer lock comprises an outer shell 1 and a second protective pad 4. The top of the outer shell 1 is fixedly connected to the bottom of the second protective pad 4. The second protective pad 4 is made of rubber. A horizontal plate 5 is fixedly connected to the bottom of the outer shell 1. The inner wall of the horizontal plate 5 is connected to a fixed structure 2. Straight plates 6 are respectively fixedly connected to the left and right sides of the front of the outer shell 1. The inner side of the straight plate 6 is rotatably connected to a protrusion 7. The protrusion 7 is rotated by the force through the inner pin shaft of the straight plate 6. The inner wall of the protrusion 7 is connected to a control structure 3. The outer wall of the control structure 3 is connected to a plurality of bolts 8.

[0020] The fixing structure 2 includes a first screw rod 201 and a bracket 202. The outer wall of the first screw rod 201 is threadedly connected to the inner wall of the horizontal plate 5. The outer wall end of the first screw rod 201 is rotatably connected to the inner wall of the bracket 202. The outer wall end of the first screw rod 201 is subjected to force to rotate through the inner wall bearing of the bracket 202. A handle 203 is fixedly connected to the outer side of the first screw rod 201. The handle 203 is convenient for driving the first screw rod 201 to rotate. A clamping plate 204 is fixedly connected to the top of the bracket 202. A first protective pad 205 is fixedly connected to the inner wall of the clamping plate 204. The first protective pad 205 is made of rubber. The lower part of the outer wall of the clamping plate 204 is plugged into the inner wall of the housing 1.

[0021] By fixing the structure 2 so that the splint 204 is located outside the wheel of the accident vehicle, and then the handle 203 is used to rotate the first screw 201 on the inner wall of the bracket 202, the rotating first screw 201 is gradually screwed into the inner wall of the cross plate 5, and at the same time the first screw 201 moves inward with the bracket 202, the moving bracket 202 moves inward with the splint 204, so that the upper position of the outer wall of the splint 204 is inserted into the gap of the wheel hub until the two splints 204 are docked, thus completing the fixation of the accident vehicle, increasing the contact surface, ensuring the safety and stability of the double-insurance trailer lock, and eliminating the limitations of the use of the double-insurance trailer lock.

[0022] The control structure 3 includes a round rod 301 and a sleeve 302. The top of the outer wall of the round rod 301 is fixedly connected to the inner wall of the protrusion 7. The bottom of the outer wall of the round rod 301 is rotatably connected to the top of the sleeve 302. The sleeve 302 is subjected to force to rotate through the bearing at the bottom of the outer wall of the round rod 301. The inner wall of the sleeve 302 is threadedly connected to a second screw 303. The lower part of the outer wall of the second screw 303 is rotatably connected to a vertical plate 304. The lower part of the outer wall of the second screw 303 is subjected to force to rotate through the inner pin shaft of the vertical plate 304. The bottom of the vertical plate 304 is fixedly connected to a bottom plate 305. The top of the outer wall of the bottom plate 305 is threadedly connected to multiple bolts 8.

[0023] Working principle:

[0024] Double insurance trailer lock installation:

[0025] The bottom plate 305 is fitted with the support plate of the trailer, and then the bolt 8 passes through the bottom plate 305 from top to bottom and is threadedly fixed to the support plate. Then the second screw rod 303 rotates on the inner wall of the vertical plate 304, and the second screw rod 303 rotates the upper overall structure to make the clamping plate 204 located outside the wheel of the accident vehicle. Then the first screw rod 201 is rotated on the inner wall of the bracket 202 with the handle 203, and the rotating first screw rod 201 is gradually screwed into the inner wall of the horizontal plate 5, and at the same time, the first screw rod 201 moves the bracket 202 inward. The movable bracket 202 moves inward with the splint 204, so that the upper position of the outer wall of the splint 204 is inserted into the gap of the wheel hub until the two splints 204 are docked, thereby completing the fixation of the accident vehicle, increasing the contact surface, and ensuring stable installation. At the same time, the first protective pad 205 and the second protective pad 4 play a cushioning role to avoid scratches on the wheel hub, thus achieving double insurance. After the fixation is completed, the movement of the pallet at the trailer is controlled to drive the accident vehicle to the trailer platform, and its position is locked by the trailer lock during transportation.

[0026] Double safety trailer lock length adjustment:

[0027] The sleeve 302 is rotated up and down on the outer wall of the second screw 303 to adjust the length of the sleeve 302 and the second screw 303, so that the position of the fixed structure 2 on the top of the round rod 301 is adjusted, and then the round rod 301 is rotated on the top of the sleeve 302 to adjust the angle of the fixed structure 2. Example

[0028] See also Figure 1-4 : In this embodiment, a double-insurance trailer lock also includes a cross bar 9 and a sheath 10. The inner sides of the two cross bars 9 are respectively fixedly connected to the left and right sides of the sleeve 302, and the outer wall of the cross bar 9 is fixedly connected to the inner wall of the sheath 10.

[0029] Working principle:

[0030] Hold the sheath 10 and exert force to rotate the crossbar 9. The rotating screw 9 can rotate the sleeve 302. The sheath 10 cooperates with the crossbar 9 to drive the sleeve 302 to rotate.

[0031] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A double-safety trailer lock, comprising a housing (1) and a second protective pad (4), characterized in that: The top of the shell (1) is fixedly connected to the bottom of the second pad (4); a horizontal plate (5) is fixedly connected to the bottom of the shell (1); the inner wall of the horizontal plate (5) is connected to a fixing structure (2); straight plates (6) are respectively fixedly connected to the left and right sides of the front surface of the shell (1); a protrusion (7) is rotatably connected to the inner side of the straight plate (6); the inner wall of the protrusion (7) is connected to a control structure (3); and the outer wall of the control structure (3) is connected to a plurality of bolts (8).

2. A double safety trailer lock according to claim 1, characterized in that: The fixing structure (2) comprises a first screw rod (201) and a bracket (202); the outer wall of the first screw rod (201) is threadedly connected to the inner wall of the horizontal plate (5); the outer wall end of the first screw rod (201) is rotatably connected to the inner wall of the bracket (202); a handle (203) is fixedly connected to the outer side of the first screw rod (201); a clamping plate (204) is fixedly connected to the top of the bracket (202); and a first protective pad (205) is fixedly connected to the inner wall of the clamping plate (204).

3. A double insurance trailer lock according to claim 2, characterized in that: The lower portion of the outer wall of the clamping plate (204) is plugged into the inner wall of the outer shell (1).

4. A double insurance trailer lock according to claim 1, characterized in that: The control structure (3) comprises a round rod (301) and a sleeve (302); the top of the outer wall of the round rod (301) is fixedly connected to the inner wall of the protrusion (7); the bottom of the outer wall of the round rod (301) is rotatably connected to the top of the sleeve (302); the inner wall of the sleeve (302) is threadedly connected to a second screw rod (303); and the lower part of the outer wall of the second screw rod (303) is rotatably connected to a vertical plate (304).

5. A double safety trailer lock according to claim 4, characterized in that: The bottom of the vertical plate (304) is fixedly connected to a bottom plate (305).

6. A double safety trailer lock according to claim 5, characterized in that: The top of the outer wall of the bottom plate (305) is threadedly connected with a plurality of bolts (8).

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