Rear bracket of wrecker
By introducing hydraulic equipment and telescopic supports into the rear bracket of the tow truck, combined with electromagnetic push rods and positioning bolts, the problems of wheel track adjustment and structural stability were solved, achieving adaptability and stability for different vehicles.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI XINDAYUN SPECIAL AUTOMOBILE EQUIP MFG CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-04-24
AI Technical Summary
The existing tow truck rear rack cannot adjust the length of the device according to the wheel track of the towed vehicle, and lacks a positioning mechanism, which may cause structural misalignment and affect normal use.
A rear support for a tow truck was designed, which uses hydraulic equipment and components such as telescopic brackets, electromagnetic push rods and positioning bolts. The position adjustment of the telescopic brackets and positioning bolts is controlled by hydraulics to adapt to vehicles with different wheelbases, and a limiting mechanism is used to prevent structural misalignment.
It enables automatic adjustment of the rear bracket length based on the vehicle's wheel track, ensuring structural stability of the device, preventing misalignment, and improving the flexibility and reliability of its use.
Smart Images

Figure CN224159213U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rear bracket technology for wreckers, specifically a rear bracket for a wrecker. Background Technology
[0002] Road clearing vehicles, also known as trailers, roadside assistance vehicles, or tractor units, have multiple functions including lifting, pulling, and towing. They are primarily used for rescuing disabled vehicles, illegally parked vehicles in urban areas, and for emergency rescue operations. Road clearing vehicles, also called trailers or accident rescue vehicles, consist of a chassis, lifting device, towing device, hydraulic system, electronic control system, vehicle body, and toolbox. They are built on a dedicated cargo chassis equipped with lifting, towing, and hoisting devices. A one-to-two road clearing vehicle can tow two accident vehicles simultaneously and is suitable for clearing obstacles on highways and urban roads. Road clearing vehicles can be categorized as: one-to-two road clearing vehicles, one-to-one road clearing vehicles, multi-functional road clearing vehicles, flatbed road clearing vehicles, and fully ground-mounted road clearing vehicles. A rear rack is typically installed at the rear of the road clearing vehicle.
[0003] The existing device cannot adjust its length according to the wheelbase of the towed vehicle, which makes it unusable. In addition, the lack of a positioning mechanism may cause internal structural misalignment during use. Therefore, we propose a rear bracket for a tow truck. Utility Model Content
[0004] The purpose of this utility model is to provide a rear bracket for a tow truck to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A rear support frame for a tow truck includes a hydraulic device. Support mechanisms are fixedly mounted on both sides of the hydraulic device. Each support mechanism includes a telescopic bracket. The telescopic brackets are fixedly mounted on both sides of the hydraulic device. An assembly shell is fixedly mounted on one side of each telescopic bracket. A plurality of electromagnetic push rods are fixedly mounted inside the assembly shell. A telescopic rod is fixedly mounted on one side of each electromagnetic push rod. A plurality of first locking holes are opened on one side of the telescopic rod. A first buckle is movably fitted onto the surface of the telescopic rod. A connecting frame is fixedly mounted on one side of each first buckle. A plurality of second locking holes are opened on one side of the connecting frame. A second buckle is movably fitted onto the outer side of the connecting frame. A combination frame is fixedly mounted on one side of each second buckle. Positioning bolts are movably mounted inside the first and second locking holes. Positioning mechanisms are fixedly mounted on both sides of the telescopic bracket.
[0007] Preferably, the positioning mechanism includes an assembly frame. The assembly frame is fixedly installed on one side of the telescopic bracket. A first rotating rod is fixedly installed inside the assembly frame. A first rotating cylinder is movably sleeved on the outer side of the first rotating rod. A telescopic component is fixedly installed on one side of the first rotating cylinder. A second sleeve is fixedly installed on one side of the telescopic component. A slot is opened on one side of the telescopic rod. A second rotating rod is fixedly installed inside the slot. The second rotating rod is movably connected to the second sleeve. By welding the assembly frame to one side of the telescopic bracket, welding a first rotating rod inside the assembly frame, sleeved on the outer side of the first rotating rod, welding a telescopic component to one side of the first rotating cylinder, welding a second sleeve to one side of the telescopic component, opening a slot on one side of the telescopic rod, welding a second rotating rod inside the slot, and sleeved on the second rotating rod, when the telescopic rod extends out of the assembly shell, it is convenient to limit the telescopic rod, thereby limiting the movement trajectory of the telescopic rod and ensuring that the device structure will not be misaligned.
[0008] Preferably, a pull buckle is fixedly provided at the top of the positioning bolt. By welding the pull buckle to the top of the positioning bolt, it is convenient for the user to pull the pull buckle out from the first or second locking hole.
[0009] Preferably, a control switch is fixedly installed on one side of the hydraulic equipment. The control switch is electrically connected to the hydraulic equipment. By installing the control switch on one side of the hydraulic equipment, the control switch can be used to control the start of the hydraulic equipment.
[0010] Preferably, a rubber pad is fixedly provided at the bottom of the hydraulic equipment and the telescopic support. By using glue to fix the rubber pad at the bottom of the hydraulic equipment and the telescopic support, it is ensured that no wear will occur when the hydraulic equipment and the telescopic support are close to the ground.
[0011] Preferably, a mounting bracket is movably provided at the top of the hydraulic equipment, and several bolts are movably provided inside the mounting bracket and the hydraulic equipment. By movably providing a mounting bracket at the top of the hydraulic equipment, which serves as the connection point for the fixing device on the recovery vehicle, and then using bolts to fix the entire device, the normal operation of the device is ensured.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. A rear support for a tow truck, comprising: a telescopic bracket welded to both sides of a hydraulic device; an assembly shell welded to one side of the telescopic bracket; two electromagnetic push rods installed inside the assembly shell; a telescopic rod welded to one side of the electromagnetic push rod; several first locking holes on one side of the telescopic rod; a first buckle fitted on the surface of the telescopic rod; a connecting frame welded to one side of the first buckle; several second locking holes on one side of the connecting frame; a second buckle fitted on the outer side of the connecting frame; and a combination frame welded to one side of the second buckle. A positioning bolt is inserted into the first and second locking holes. The electromagnetic push rod is activated to extend the telescopic rod. The positioning bolt's insertion position is adjusted according to the wheel track length, thus adapting to vehicles with various wheel tracks.
[0014] 2. The rear bracket of this kind of wrecker vehicle is constructed by welding a splicing frame to one side of a telescopic bracket, welding a first rotating rod inside the splicing frame, fitting a first rotating cylinder on the outside of the first rotating rod, welding a telescopic component to one side of the first rotating cylinder, welding a second sleeve to one side of the telescopic component, opening a groove on one side of the telescopic rod, welding a second rotating rod inside the groove, and fitting the second sleeve onto the second rotating rod. When the telescopic rod extends out of the assembly shell, it is convenient to limit the telescopic rod, thereby limiting the movement trajectory of the telescopic rod and ensuring that the device structure will not be misaligned. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model;
[0016] Figure 2 This is a schematic diagram of the installation of the second rotating rod of this utility model;
[0017] Figure 3 This utility model Figure 1 Enlarged view of point A in the middle;
[0018] Figure 4 This is a schematic diagram of the installation of the electromagnetic actuator of this utility model.
[0019] In the diagram: 1. Hydraulic equipment; 2. Telescopic bracket; 3. Assembly shell; 4. Electromagnetic push rod; 5. Telescopic rod; 6. First locking hole; 7. First buckle; 8. Connecting frame; 9. Second locking hole; 10. Second buckle; 11. Combination frame; 12. Positioning bolt; 13. Assembling frame; 14. First rotating rod; 15. First rotating cylinder; 16. Telescopic component; 17. Second sleeve; 18. Slot; 19. Second rotating rod; 20. Pull buckle; 21. Control switch; 22. Rubber pad; 23. Mounting bracket; 24. Bolt. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figure 1 - Figure 4 As shown, the technical solution provided by this utility model is as follows:
[0022] A rear support frame for a tow truck includes a hydraulic device 1. Support mechanisms are fixedly installed on both sides of the hydraulic device 1. Each support mechanism includes a telescopic bracket 2. The telescopic bracket 2 is fixedly installed on both sides of the hydraulic device 1. An assembly shell 3 is fixedly installed on one side of the telescopic bracket 2. Several electromagnetic push rods 4 are fixedly installed inside the assembly shell 3. A telescopic rod 5 is fixedly installed on one side of the electromagnetic push rod 4. Several first locking holes 6 are opened on one side of the telescopic rod 5. A first buckle 7 is movably sleeved on the surface of the telescopic rod 5. A connecting frame 8 is fixedly installed on one side of the first buckle 7. Several second locking holes 9 are opened on one side of the connecting frame 8. A second buckle 10 is movably sleeved on the outside of the connecting frame 8. A combination frame 11 is fixedly installed on one side of the second buckle 10. Positioning bolts 12 are movably installed inside the first locking holes 6 and the second locking holes 9. Positioning mechanisms are fixedly installed on both sides of the telescopic bracket 2.
[0023] Through the above scheme, telescopic brackets 2 are welded to both sides of the hydraulic equipment 1. An assembly shell 3 is welded to one side of the telescopic bracket 2. Two electromagnetic push rods 4 are installed inside the assembly shell 3. A telescopic rod 5 is welded to one side of the electromagnetic push rod 4. Several first locking holes 6 are opened on one side of the telescopic rod 5. A first buckle 7 is fitted on the surface of the telescopic rod 5. A connecting frame 8 is welded to one side of the first buckle 7. Several second locking holes 9 are opened on one side of the connecting frame 8. A second buckle 10 is fitted on the outside of the connecting frame 8. A combination frame 11 is welded to one side of the second buckle 10. The positioning bolt 12 is inserted into the first locking hole 6 and the second locking hole 9. The electromagnetic push rod 4 is activated to push out the telescopic rod 5. The insertion position of the positioning bolt 12 is adjusted according to the wheel track length, thereby adapting to vehicles with different wheel tracks.
[0024] In this embodiment, preferably, the positioning mechanism includes a splicing frame 13, a splicing frame 13 is fixedly installed on one side of the telescopic bracket 2, a first rotating rod 14 is fixedly installed inside the splicing frame 13, a first rotating cylinder 15 is movably sleeved on the outside of the first rotating rod 14, a telescopic component 16 is fixedly installed on one side of the first rotating cylinder 15, a second sleeve 17 is fixedly installed on one side of the telescopic component 16, a slot 18 is opened on one side of the telescopic rod 5, a second rotating rod 19 is fixedly installed inside the slot 18, and the second rotating rod 19 is movably connected to the second sleeve 17.
[0025] With the above solution, by welding a splicing frame 13 to one side of the telescopic bracket 2, welding a first rotating rod 14 inside the splicing frame 13, sleeved a first rotating cylinder 15 on the outside of the first rotating rod 14, welding a telescopic component 16 to one side of the first rotating cylinder 15, welding a second sleeve 17 to one side of the telescopic component 16, opening a slot 18 on one side of the telescopic rod 5, welding a second rotating rod 19 inside the slot 18, and sleeved the second sleeve 17 on the second rotating rod 19, when the telescopic rod 5 extends out of the assembly shell 3, it is convenient to limit the telescopic rod 5, thereby limiting the movement trajectory of the telescopic rod 5 and ensuring that the device structure will not be misaligned;
[0026] In this embodiment, preferably, a pull buckle 20 is fixedly provided at the top end of the positioning bolt 12;
[0027] With the above solution, by welding a buckle 20 to the top of the positioning bolt 12, it is convenient for the user to pull the buckle 20 out from the first locking hole 6 or the second locking hole 9;
[0028] In this embodiment, preferably, a control switch 21 is fixedly installed on one side of the hydraulic equipment 1, and the control switch 21 is electrically connected to the hydraulic equipment 1.
[0029] With the above solution, by setting a control switch 21 on one side of the hydraulic equipment 1, the control switch 21 can be used to control the start of the hydraulic equipment 1;
[0030] In this embodiment, preferably, a rubber pad 22 is fixedly provided at the bottom end of the hydraulic device 1 and the telescopic bracket 2;
[0031] By using the above solution, rubber pads 22 are fixed to the bottom of hydraulic equipment 1 and telescopic bracket 2 with glue, ensuring that no wear occurs when hydraulic equipment 1 and telescopic bracket 2 are close to the ground;
[0032] In this embodiment, preferably, a mounting bracket 23 is movably provided at the top of the hydraulic device 1, and a plurality of bolts 24 are movably provided inside the mounting bracket 23 and the hydraulic device 1.
[0033] The above solution involves setting a mounting bracket 23 at the top of the hydraulic equipment 1. The mounting bracket 23 is the connection point of the fixed device on the recovery vehicle. Bolts 24 are then used to fix the entire device, ensuring its normal operation.
[0034] In this embodiment, the rear support of a tow truck is used by welding telescopic brackets 2 to both sides of a hydraulic device 1. An assembly shell 3 is welded to one side of the telescopic bracket 2. Two electromagnetic push rods 4 are installed inside the assembly shell 3. A telescopic rod 5 is welded to one side of each electromagnetic push rod 4. Several first locking holes 6 are formed on one side of the telescopic rod 5. A first buckle 7 is fitted onto the surface of the telescopic rod 5. A connecting frame 8 is welded to one side of the first buckle 7. Several second locking holes 9 are formed on one side of the connecting frame 8. A second buckle 10 is fitted onto the outside of the connecting frame 8. A combination frame 11 is welded to one side of the second buckle 10. A positioning bolt 12 is inserted into the first locking holes 6 and the second locking holes 9. The electromagnetic push rods 4 are activated, pushing the telescopic rod 5 outwards. The insertion position of the positioning bolt 12 is adjusted according to the wheel track length to adapt to vehicles with different wheel tracks. A splicing frame 13 is welded to one side of the telescopic bracket 2. A first rotating rod 14 is welded inside the splicing frame 13. A first rotating cylinder 15 is sleeved on the outside of the first rotating rod 14. A telescopic component 16 is welded to one side of the first rotating cylinder 15. A second sleeve 17 is welded to one side of the telescopic component 16. A groove 18 is opened on one side of the telescopic rod 5. A second rotating rod 19 is welded inside the groove 18. The second sleeve 17 is sleeved on the second rotating rod 19. When the telescopic rod 5 extends out of the assembly shell 3, it is convenient to limit the movement trajectory of the telescopic rod 5, thereby ensuring that the device structure will not be misaligned.
[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A rear support bracket for a tow truck, characterized in that: The device includes a hydraulic device (1), on both sides of which a support mechanism is fixedly provided. The support mechanism includes a telescopic bracket (2). The telescopic bracket (2) is fixedly provided on both sides of the hydraulic device (1). An assembly shell (3) is fixedly provided on one side of the telescopic bracket (2). Several electromagnetic push rods (4) are fixedly provided inside the assembly shell (3). A telescopic rod (5) is fixedly provided on one side of the electromagnetic push rod (4). Several first locking holes (6) are opened on one side of the telescopic rod (5). A first buckle (7) is movably sleeved on the surface of the telescopic rod (5). A connecting frame (8) is fixedly provided on one side of the first buckle (7). Several second locking holes (9) are opened on one side of the connecting frame (8). A second buckle (10) is movably sleeved on the outside of the connecting frame (8). A combination frame (11) is fixedly provided on one side of the second buckle (10). A positioning bolt (12) is movably provided inside the first locking hole (6) and the second locking hole (9). A positioning mechanism is fixedly provided on both sides of the telescopic bracket (2).
2. The rear support bracket of a tow truck according to claim 1, characterized in that: The positioning mechanism includes a splicing frame (13), and a splicing frame (13) is fixedly installed on one side of the telescopic bracket (2). A first rotating rod (14) is fixedly installed inside the splicing frame (13). A first rotating cylinder (15) is movably sleeved on the outside of the first rotating rod (14). A telescopic component (16) is fixedly installed on one side of the first rotating cylinder (15). A second sleeve (17) is fixedly installed on one side of the telescopic component (16). A slot (18) is opened on one side of the telescopic rod (5). A second rotating rod (19) is fixedly installed inside the slot (18). The second rotating rod (19) is movably connected to the second sleeve (17).
3. The rear support bracket of a tow truck according to claim 1, characterized in that: The top of the positioning bolt (12) is fixedly provided with a pull buckle (20).
4. The rear support bracket of a tow truck according to claim 1, characterized in that: A control switch (21) is fixedly installed on one side of the hydraulic equipment (1), and the control switch (21) is electrically connected to the hydraulic equipment (1).
5. The rear support bracket of a tow truck according to claim 1, characterized in that: Rubber pads (22) are fixedly installed at the bottom of the hydraulic equipment (1) and the telescopic bracket (2).
6. The rear support bracket of a tow truck according to claim 1, characterized in that: The top of the hydraulic device (1) is movably provided with a mounting bracket (23), and several bolts (24) are movably provided inside the mounting bracket (23) and the hydraulic device (1).