Anti-theft and anti-falling trailer rod

Abstract

The utility model relates to the field of trailer rods, in particular to an anti-theft and anti-falling trailer rod which comprises a supporting seat, a ball rod through groove is formed in one end of the supporting seat, a traction ball rod is slidably connected into the ball rod through groove, connecting balls are arranged at the two ends of the traction ball rod, and a connecting assembly used for fixing the traction ball rod is arranged on the supporting seat. The other end of the supporting seat is detachably connected with a fixing block, a locking assembly used for fixing the fixing block to the supporting seat is arranged on the fixing block and comprises a lock head, a lock rod and a lock cavity, the lock rod penetrates through the supporting seat and the fixing block in the horizontal direction, and the two ends of the lock rod are connected with the lock head and the lock cavity respectively. The lock head and the lock cavity are located at the two ends of the fixing block in the horizontal direction respectively, a lock cover is arranged at the end, away from the lock head, of the lock cavity and rotationally connected with a lock cylinder, and a lock hole is formed in the end, away from the rod, of the lock cylinder. The trailer rod has the effect of reducing the situation that the trailer rod is stolen.

Description

Technical Field

[0001] The present application relates to the field of trailer bars, and in particular to an anti-theft and anti-fall-off trailer bar. Background Art

[0002] When a vehicle on the road breaks down, it needs to be towed by a trailer to a maintenance area for repair. Tow bars, as connectors between trailers and broken-down vehicles, are widely used to tow broken-down vehicles. However, the towing point has a fixed height, while the bumper heights of broken-down vehicles are not the same. In order to facilitate adaptation to different height differences, most tow bars on the market are split ball heads with threaded connections.

[0003] The utility model patent with publication number CN218084970U discloses a trailer rod, which includes a fixed block, a towing ball rod and a support seat, the fixed block includes a connecting arm and an adjusting arm, the adjusting arm is slidably connected to the support seat, the connecting arm and the adjusting arm are fixedly connected, the connecting arm is used to be connected to the trailer, the support seat is provided with a ball rod through groove for the towing ball rod to pass through, the towing ball rod is a connected structure, including a connecting rod, an upper sphere and a lower sphere, the upper sphere and the lower sphere are used to be connected to a faulty vehicle, the connecting rod is provided with a limiting through hole, a connecting assembly is connected between the limiting through hole and the support seat, which is used to fix the towing ball rod on the support seat.

[0004] This tow bar has no anti-theft feature and can be easily stolen. Utility Model Content

[0005] In order to reduce the theft of trailer bars, the present application provides an anti-theft and anti-falloff trailer bar.

[0006] The anti-theft and anti-fall-off trailer rod provided in this application adopts the following technical solution:

[0007] The locking cam is configured to lock the locking cam of the locking cam and lock the locking cam of the locking cam, wherein the locking cam is secured to the locking cam of the locking cam and the locking cam is secured to the locking cam of the locking cam.

[0008] By adopting the above technical solution, the towing ball rod, the towing ball and the fixed block are respectively used to connect with two vehicles, and the support seat plays the role of connecting the fixed block and the towing ball rod, so that the towing rod can play the role of towing the vehicle. The fixed block is fixed to the support seat by a locking assembly. When disassembling the locking assembly, the operator inserts the key into the lock hole and rotates the lock core to separate the locking rod from the lock head, thereby removing the locking rod from the support seat, so that the fixed block is separated from the support seat. Since the disassembly of the locking assembly requires the corresponding key, it plays an anti-theft role.

[0009] Optionally, a limit groove coaxial with the lock rod is provided on the cylindrical surface of the lock rod, and the limit groove is located at one end of the lock rod close to the lock cavity. A limit plate for engaging with the limit groove is provided on the lock core, and the shape of the limit plate is a semicircle coaxially arranged with the lock core.

[0010] By adopting the above technical solution, when the lock core rotates, the semicircular limit plate is rotated into the limit groove and locked with the limit groove, so that the locking assembly is in a locked state. When unlocking, the operator drives the lock core to rotate with the key, and when the lock core rotates, the limit plate is driven out of the limit groove, thereby facilitating the removal of the locking device.

[0011] Optionally, the radius of the limiting plate is greater than the straight-line distance between the bottom of the limiting groove and the center of the lock core.

[0012] By adopting the above technical solution, when the limit plate rotates into the limit groove, the limit plate will be locked with the bottom of the limit groove, which has the effect of reminding the operator that the limit plate has been rotated into place.

[0013] Optionally, a support rod is provided on the lock head, the support rod is arranged parallel to the locking rod, and the length of the support rod is smaller than the length of the locking rod.

[0014] By adopting the above technical solution, the support rod plays a role in increasing the connection strength, and the length of the support is smaller than the locking rod, which plays a role in reducing the occurrence of the support rod and the limit plate being stuck.

[0015] Optionally, the fixed block includes an adjusting arm and a connecting arm, the adjusting arm is slidably connected to the support seat, the connecting arm is arranged at one end of the adjusting arm away from the support seat and is arranged perpendicular to the adjusting arm, and the support rod and the locking rod are both arranged through the adjusting arm.

[0016] By adopting the above technical solution, the position of the adjusting arm on the supporting seat is moved to adapt to vehicles of different sizes.

[0017] Optionally, the connecting assembly includes a locking pin and a screw, a first horizontal limiting through hole is provided on the support seat, a second limiting through hole coaxial with the first limiting through hole is provided on the traction ball rod, the locking pin passes through the first limiting through hole and the second limiting through hole in sequence, the screw is threadedly connected to the first limiting through hole and is used to limit the locking pin in the first limiting through hole.

[0018] By adopting the above technical solution, the operator passes the locking pin through the first limiting through hole and the second limiting through hole in sequence, and then threadably connects the screw with the first limiting through hole. The screw and the locking pin are engaged so that the locking pin is fixed. After the locking pin is fixed, the traction ball rod is also fixed. This fixing method is relatively convenient for disassembly and assembly.

[0019] Optionally, a vertical adjustment slot is provided on the support seat, the adjustment arm is slidably connected in the adjustment slot along the vertical direction, the first limiting hole is provided at the bottom of the adjustment slot, and vertical limiting plates are provided on the side walls at both ends of the adjustment slot. The limiting plate is located at the end of the adjustment arm away from the first limiting hole and is arranged to be locked with the adjustment arm.

[0020] By adopting the above technical solution, the adjusting slot and the limiting plate play a role in limiting the adjusting arm.

[0021] Optionally, a plurality of first locking through holes for the locking rod and the support rod to pass through are formed on the side wall of the adjustment slot, and a plurality of second locking through holes for the locking rod and the support rod to pass through are formed evenly along the height direction of the adjustment arm.

[0022] By adopting the above technical solution, after the second locking through hole at a suitable position on the adjusting arm is aligned with the position of the first locking through hole on the supporting seat, the adjusting arm is fixedly connected to the supporting seat using a locking assembly, so that the position of the adjusting arm conforms to the size of the connected vehicle.

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

[0024] 1. The support base is connected to the fixed block through a locking assembly. When removing the locking assembly, a corresponding key is required to prevent theft and fall off;

[0025] 2. The support rod serves to increase the connection strength between the locking assembly and the support seat;

[0026] 3. By setting the size of the limit plate, when the limit plate is rotated into the limit slot, the limit plate will be locked with the bottom of the limit slot, which serves to remind the operator that the limit plate has been rotated into place. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1It is a structural schematic diagram of an anti-theft and anti-detachment trailer rod according to an embodiment of the present application.

[0028] Figure 2 It is a structural schematic diagram of a support base of an anti-theft and anti-detachment trailer rod according to an embodiment of the present application.

[0029] Figure 3 It is a structural schematic diagram of a towing ball rod of an anti-theft and anti-detachment trailer rod according to an embodiment of the present application.

[0030] Figure 4 It is a structural schematic diagram of a connecting assembly of an anti-theft and anti-detachment trailer rod according to an embodiment of the present application.

[0031] Figure 5 It is a structural schematic diagram of a locking assembly of an anti-theft and anti-detachment trailer rod according to an embodiment of the present application.

[0032] Figure 6 It is a structural schematic diagram of a lock core and a lock hole of an anti-theft and anti-detachment trailer rod according to an embodiment of the present application.

[0033] Explanation of the reference numerals: 1. Support seat; 11. Ball rod slot; 12. Adjustment slot; 121. First locking hole; 13. Limit block; 2. Traction ball rod; 21. Connecting ball; 3. Connecting assembly; 31. Locking pin; 32. Screw; 33. First limiting hole; 34. Second limiting hole; 4. Fixing block; 41. Adjustment arm; 411. Second locking hole; 42. Connecting arm; 5. Locking assembly; 51. Lock head; 511. Support rod; 52. Lock rod; 521. Limiting slot; 53. Lock cavity; 531. Lock cover; 532. Lock core; 533. Lock hole; 534. Limit plate. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-6 This application is described in further detail.

[0035] The present application discloses an anti-theft and anti-fall-off trailer rod. Figure 1 and Figure 2 A theft-proof and anti-slip trailer rod comprises a support seat 1, one end of the support seat 1 is provided with a vertical ball rod through groove 11, the other end of the support seat 1 is provided with a vertical adjustment through groove 12, a traction ball rod 2 is slidably connected in the ball rod through groove 11 along the vertical direction, the traction ball rod 2 is fixed to the support seat 1 through a connecting assembly 3, and the upper and lower ends of the traction ball rod 2 are fixedly connected with a connecting ball 21, which plays a role of connecting with the vehicle.

[0036] Reference Figure 3 and Figure 4The connecting component 3 includes a locking pin 31 and a screw 32. A horizontal first limiting through hole 33 is provided at the bottom of the adjusting through slot 12. The first limiting through hole 33 is connected to the ball rod through slot 11. A second limiting through hole 34 coaxial with the first limiting through hole 33 is provided on the side wall of the traction ball rod 2. The locking pin 31 passes through the first limiting through hole 33 and the second limiting through hole 34 in sequence along the horizontal direction. The screw 32 is threadedly connected to the first limiting through hole 33. The screw 32 is tightly arranged against the locking pin 31. After the screw 32 is fixed, the locking pin 31 is fixed, thereby fixing the traction ball rod 2.

[0037] Reference Figure 1 and Figure 2 A fixed block 4 is slidably connected in the adjusting slot 12, and the fixed block 4 includes a vertical adjusting arm 41 and a horizontal connecting arm 42. The adjusting arm 41 is slidably connected in the adjusting slot 12 along the vertical direction, and the connecting arm 42 is fixedly connected to the end of the adjusting arm 41 away from the support seat 1. Vertical limit blocks 13 are fixedly connected to the side walls at both ends of the adjusting slot 12. The limit block 13 is located at the end of the adjusting arm 41 away from the first limit through hole 33 and is arranged to be locked with the adjusting arm 41, so as to reduce the effect of sliding out of the adjusting arm 41. The adjusting arm 41 is detachably connected to the support seat 1 through the locking assembly 5.

[0038] Reference Figure 1 and Figure 5 The locking assembly 5 includes a locking head 51, a locking rod 52 and a locking cavity 53. The locking head 51 and the locking cavity 53 are respectively located at the two ends of the adjusting arm 41 in the horizontal direction. Two vertically arranged first locking through holes 121 are provided on the side wall of the adjusting slot 12. A plurality of second locking through holes 411 are evenly provided on the adjusting arm 41 along its height direction. The locking rod 52 is horizontally connected to one end of the locking head 51. A supporting rod 511 is fixedly connected to the locking head 51. The supporting rod 511 is located directly above the locking rod 52 and is arranged parallel to the locking rod 52. The locking rod 52 and the supporting rod 511 both penetrate the first locking through hole 121 and the second locking through hole 411 in the horizontal direction so that the adjusting arm 41 is connected and fixed to the supporting seat 1.

[0039] Reference Figure 5 and Figure 6The end of the lock rod 52 away from the lock head 51 is detachably connected to the lock cavity 53, and the end of the lock cavity 53 away from the lock head 51 is provided with a lock cover 531, and a lock core 532 is rotatably connected to the lock cover 531. The end of the lock core 532 away from the rod is provided with a lock hole 533, and a limiting groove 521 coaxial with the lock rod 52 is provided on the cylindrical surface of the lock rod 52. The limiting groove 521 is located at the end of the lock rod 52 close to the lock cavity 53, and a limiting plate 534 for locking with the limiting groove 521 is fixedly connected to the lock core 532. The shape of the limiting plate 534 is a semicircular shape coaxially arranged with the lock core 532. When the lock core 532 rotates, the semicircular The limit plate 534 rotates into the limit groove 521 and engages with the limit groove 521, so that the locking assembly 5 is in a locked state. When unlocking, the operator drives the lock cylinder 532 to rotate by using the key. When the lock cylinder 532 rotates, the limit plate 534 is driven to move out of the limit groove 521, thereby facilitating the removal of the locking assembly 5. The radius of the limit plate 534 is larger than the straight-line distance between the bottom of the limit groove 521 and the center of the circle of the lock cylinder 532. When the limit plate 534 rotates into the limit groove 521, the limit plate 534 will engage with the bottom of the limit groove 521, which serves to remind the operator that the limit plate 534 has rotated into place.

[0040] The implementation principle of the anti-theft and anti-fall-off trailer rod in the embodiment of the present application is:

[0041] When installing the traction ball bar 2, the operator inserts the traction ball bar 2 into the ball bar groove 11 and aligns the first limiting through hole 33 with the second limiting through hole 34, then sequentially passes the locking pin 31 through the first limiting through hole 33 and the second limiting through hole 34, and finally threadably connects and fixes the screw 32 with the first limiting through hole 33. The screw 32 and the locking pin 31 are tightly arranged so that the locking pin 31 is fixed, thereby completing the installation of the traction ball bar 2.

[0042] When installing the fixing block 4, the operator inserts the adjusting arm 41 into the adjusting slot 12, and then selects the second locking hole 411 at a suitable position according to the size of the vehicle to correspond to the first locking hole 121 on the adjusting slot 12, and then passes the support rod 511 and the locking rod 52 through the first locking hole 121 and the second locking hole 411 in the horizontal direction in sequence, and then extends them from the other end of the support seat 1, and then puts the cavity on the locking rod 52 and the support rod 511, and drives the lock core 532 to rotate by the key, and the lock core 532 drives the limit plate 534 to insert into the limit groove 521 and engage with the limit groove 521, thereby fixing the adjusting arm 41 on the support seat 1.

[0043] Since the first limiting through hole 33 is located at the bottom of the adjusting through groove 12, the adjusting arm 41 needs to be removed first when removing the traction ball rod 2, and the adjusting arm 41 is connected to the support seat 1 through the locking assembly 5, so that a specific key is required to remove the adjusting arm 41, thereby playing an anti-theft and anti-detachment role.

[0044] 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. An anti-theft and anti-fall-off trailer rod, characterized in that: The invention comprises a support seat (1), one end of the support seat (1) is provided with a ball rod through groove (11), a traction ball rod (2) is slidably connected in the ball rod through groove (11), both ends of the traction ball rod (2) are provided with connecting balls (21), the support seat (1) is provided with a connecting component (3) for fixing the traction ball rod (2), the other end of the support seat (1) is detachably connected with a fixing block (4), the fixing block (4) is provided with a locking component (5) for fixing the fixing block (4) on the support seat (1), and the locking component (5) comprises a locking head (51). , a locking rod (52) and a locking cavity (53), wherein the locking rod (52) penetrates the support seat (1) and the fixing block (4) in the horizontal direction, and the two ends of the locking rod (52) are respectively connected to the locking head (51) and the locking cavity (53), and the locking head (51) and the locking cavity (53) are respectively located at the two ends of the fixing block (4) in the horizontal direction, and a locking cover (531) is provided at one end of the locking cavity (53) away from the locking head (51), and a lock core (532) is rotatably connected to the lock cover (531), and a locking hole (533) is provided at one end of the lock core (532) away from the rod.

2. The anti-theft and anti-fall-off trailer bar according to claim 1, characterized in that: A limiting groove (521) coaxial with the locking rod (52) is provided on the cylindrical surface of the locking rod (52); the limiting groove (521) is located at one end of the locking rod (52) close to the lock cavity (53); a limiting plate (534) for engaging with the limiting groove (521) is provided on the lock core (532); the limiting plate (534) is in the shape of a semicircle coaxially arranged with the lock core (532).

3. The anti-theft and anti-fall-off trailer bar according to claim 2, characterized in that: The radius of the limiting plate (534) is greater than the linear distance between the bottom of the limiting groove (521) and the center of the lock core (532).

4. The anti-theft and anti-fall-off trailer bar according to claim 3, characterized in that: The lock head (51) is provided with a support rod (511), the support rod (511) is arranged parallel to the lock rod (52), and the length of the support rod (511) is smaller than the length of the lock rod (52).

5. The anti-theft and anti-fall-off trailer bar according to claim 4, characterized in that: The fixing block (4) comprises an adjusting arm (41) and a connecting arm (42); the adjusting arm (41) is slidably connected to the support seat (1); the connecting arm (42) is arranged at one end of the adjusting arm (41) away from the support seat (1) and is arranged perpendicular to the adjusting arm (41); and the supporting rod (511) and the locking rod (52) are both arranged to penetrate the adjusting arm (41).

6. The anti-theft and anti-fall-off trailer bar according to claim 5, characterized in that: The connecting assembly (3) comprises a locking pin (31) and a screw (32); a horizontal first limiting through hole (33) is provided on the support seat (1); a second limiting through hole (34) coaxial with the first limiting through hole (33) is provided on the traction ball rod (2); the locking pin (31) passes through the first limiting through hole (33) and the second limiting through hole (34) in sequence; the screw (32) is threadedly connected to the first limiting through hole (33) and is used to limit the locking pin (31) in the first limiting through hole (33).

7. The anti-theft and anti-fall-off trailer bar according to claim 6, characterized in that: The support seat (1) is provided with a vertical adjustment slot (12), the adjustment arm (41) is slidably connected in the adjustment slot (12) along the vertical direction, the first limiting through hole (33) is provided at the bottom of the adjustment slot (12), and vertical limiting blocks (13) are provided on the side walls at both ends of the adjustment slot (12), and the limiting blocks (13) are located at one end of the adjustment arm (41) away from the first limiting through hole (33) and are arranged to be locked with the adjustment arm (41).

8. The anti-theft and anti-fall-off trailer bar according to claim 7, characterized in that: A plurality of first locking through holes (121) for the locking rods (52) and the supporting rods (511) to pass through are formed on the side wall of the adjusting slot (12), and a plurality of second locking through holes (411) for the locking rods (52) and the supporting rods (511) to pass through are formed evenly along the height direction of the adjusting arm (41).

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