A towing hook device

Abstract

The present invention provides a towing hook device, which includes a connecting seat for connecting to a vehicle frame and a towing hook. The towing hook includes a circular ring, a sleeve connected to the middle position of one side of the circular ring, and a connecting rod connected to the middle position of the other side of the circular ring. The connecting rod and the sleeve are coaxially arranged, and the axis of the circular ring is perpendicular to the axis of the connecting rod. The center hole of the sleeve is used to engage with a tire nut. The end of the connecting rod away from the circular ring is used to connect to the connecting seat. The connecting rod is provided with a through hole for the first end of the spare tire lifter rocker to pass through. The present invention not only has the function of a towing hook, but also has the function of a nut sleeve. At the same time, it enables the spare tire lifter rocker to be used as an extension rod, so that the nut sleeve and the extension rod are not required in the on-board tools, thereby effectively reducing the number of on-board tools and better avoiding excessive occupation of the vehicle's loading space.

Description

Technical Field

[0001] The invention belongs to the technical field of truck component structures, and particularly relates to a towing hook device. Background Art

[0002] Modern electric trucks for home use are typically equipped with basic onboard tools such as a spare tire lifter rocker, front and rear tow hooks, an extension rod, and a nut sleeve for emergency use. When a vehicle gets stuck in mud, the front tow hook is needed to free it. However, existing tow hooks have a limited function, serving only to free the vehicle, resulting in a large number of onboard tools required. If a tire ruptures, the spare tire lifter rocker is needed to remove the spare tire for replacement; a nut sleeve is also needed to remove the tire nut, requiring an extension rod to rotate the nut sleeve for labor-saving removal. When not in use, the extension rod and nut sleeve need to be placed on the vehicle. Due to the long extension rod and the large number of onboard tools, more loading space is occupied. Therefore, designing a tow hook device that reduces the number of onboard tools and prevents excessive loading space from being occupied has become a technical problem urgently needed by those skilled in the art. Summary of the Invention

[0003] The purpose of the present invention is to provide a towing hook device to solve the above technical problems in the prior art.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A towing hook device includes a connecting seat and a towing hook for connecting to a vehicle frame. The towing hook includes a circular ring, a sleeve connected to the middle position of one side of the circular ring, and a connecting rod connected to the middle position of the other side of the circular ring. The connecting rod and the sleeve are coaxially arranged, and the axis of the circular ring is perpendicular to the axis of the connecting rod. The center hole of the sleeve is used to engage with the tire nut, and the end of the connecting rod away from the circular ring is used to be connected to the connecting seat. The connecting rod is provided with a through hole for the first end of the spare tire lifter rocker to pass through.

[0006] Preferably, a screw hole is provided on the connecting seat, and the connecting rod includes a coaxially arranged threaded section and a polished rod section, the threaded section is used to threadably cooperate with the screw hole, one end of the polished rod section is connected to the threaded section, and the other end of the polished rod section is connected to the circular ring.

[0007] Preferably, the connecting seat is a rectangular block, one end of the connecting seat has a round head structure, and the screw hole is provided on the end surface of the other end of the connecting seat.

[0008] Preferably, the through hole is located on one end of the polished rod segment close to the threaded segment.

[0009] Preferably, the connection between the threaded section and the polished rod section has a limiting step surface for blocking with the connecting seat.

[0010] Preferably, the connecting seat is detachably connected to the vehicle frame.

[0011] Preferably, the second end of the spare tire lifter rocker has a threaded hole, the threaded hole is coaxial with the spare tire lifter rocker, and the threaded hole is used to threadably cooperate with a connecting stud of a crowbar head.

[0012] Preferably, the first end of the rocker arm of the spare tire lifter is a first clamping block for engaging with a clamping hole on the rotating shaft of the spare tire lifter.

[0013] Preferably, the second end of the spare tire lifter rocker is a second clamping block for engaging with the clamping hole of a disassembly wrench.

[0014] Preferably, the through hole is a polygonal hole, and the spare tire lifter rocker has a polygonal block engaged with the through hole near the second end.

[0015] The beneficial effects of the present invention are:

[0016] The towing hook device of the present invention, when in use, fixes the connecting rod of the towing hook to the connecting seat, and then fixes the rope in the ring, so that the towing hook can be used to pull the vehicle out of the mud. When the tire nut needs to be removed, the center hole of the sleeve of the towing hook is engaged with the tire nut, and the first end of the spare tire lifter rocker is passed through the through hole of the connecting rod. The spare tire lifter rocker can be used as an extension rod. Then, the spare tire lifter rocker is rotated about the axis of the connecting rod, which can drive the sleeve to rotate accordingly, thereby achieving the removal of the tire nut with relatively little effort. It can be seen that the towing hook of the present invention not only has the function of a towing hook, but also has the function of a nut sleeve in the prior art. At the same time, the spare tire lifter rocker can be used as an extension rod, so that the vehicle-mounted tool does not need to include a nut sleeve and an extension rod, thereby effectively reducing the number of vehicle-mounted tools and better avoiding excessive occupation of the vehicle's loading space. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the embodiments, and further describe the specific embodiments of the present invention in detail with reference to the drawings.

[0018] Figure 1 A schematic diagram of the towing hook device provided by an embodiment of the present invention when in use;

[0019] Figure 2 A schematic diagram of a connecting socket provided in an embodiment of the present invention;

[0020] Figure 3 A schematic diagram of a towing hook provided in an embodiment of the present invention;

[0021] Figure 4 A schematic diagram of the tow hook and spare tire lifter rocker provided in an embodiment of the present invention when used in conjunction with each other;

[0022] Figure 5 A schematic diagram of a spare tire lifter rocker provided in an embodiment of the present invention;

[0023] Figure 6 A schematic diagram of a crowbar head provided in an embodiment of the present invention;

[0024] Figure 7 A schematic diagram of the crowbar head provided by an embodiment of the present invention in use in conjunction with a spare tire lifter rocker;

[0025] Figure 8 A schematic diagram of the spare tire lifter rocker and the spare tire lifter provided in an embodiment of the present invention when in cooperation;

[0026] Figure 9 Another schematic diagram of the tow hook provided by an embodiment of the present invention and the spare tire lifter rocker being used in conjunction with each other.

[0027] Markings in the accompanying drawings:

[0028] 11. Frame; 21. Connecting seat; 22. Fastening bolt; 23. Screw hole; 24. Connecting hole;

[0029] 25. Round head structure; 31. Tow hook, 32. Ring, 33. Sleeve, 34. Center hole of the sleeve,

[0030] 35. Polished rod section, 36. Threaded section, 37. Through hole; 41. Spare tire lifter rocker,

[0031] 42, first end, 43, threaded hole, 44, second end; 51, crowbar head, 52, connecting stud,

[0032] 53. Flat part; 61. Spare tire lifter; 62. Chain. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solution of the present invention, the solution will be further described in detail below in conjunction with specific embodiments.

[0034] like Figures 1 to 9As shown, an embodiment of the present invention provides a towing hook device, which includes a connecting seat 21 for connecting to a vehicle frame 11 and a towing hook 31. The towing hook 31 includes a ring 32, a sleeve 33 connected to the middle position of one side of the ring 32, and a connecting rod connected to the middle position of the other side of the ring 32. The connecting rod is coaxially arranged with the sleeve 33, and the axis of the ring 32 is perpendicular to the axis of the connecting rod; the center hole 34 of the sleeve is used to engage with the tire nut, and the end of the connecting rod away from the ring 32 is used to be connected to the connecting seat 21, and the connecting rod is provided with a through hole 37 for the first end 42 of the spare tire lifter rocker 41 to pass through.

[0035] The towing hook device provided in the embodiment of the present invention is configured such that when in use, the connecting rod of the towing hook 31 is fixed to the connecting seat 21, and then the rope is fixed to the ring 32, so that the towing hook can be used to pull the vehicle out of the mud; when the wheel nut needs to be removed, the center hole 34 of the sleeve of the towing hook is engaged with the wheel nut, and the first end of the spare tire lifter rocker 41 is passed through the through hole 37 of the connecting rod, so that the spare tire lifter rocker can be used as an extension rod, such as Figure 4 As shown, the spare tire lifter rocker is then rotated about the axis of the connecting rod, which drives the sleeve to rotate accordingly, thereby achieving relatively labor-saving removal of the tire nut. It can be seen that the tow hook of the present invention not only has the function of a tow hook, but also has the function of a nut sleeve in the prior art. At the same time, the spare tire lifter rocker can be used as an extension rod, thereby eliminating the need for a nut sleeve and an extension rod in the vehicle tool kit, thereby effectively reducing the number of vehicle tool kits and effectively avoiding excessive occupation of the vehicle's loading space.

[0036] Furthermore, the connecting base 21 is provided with a screw hole 23, and the connecting rod includes a coaxially arranged threaded section 36 and a polished rod section 35. The threaded section 36 is configured to threadably engage with the screw hole 23. One end of the polished rod section 35 is connected to the threaded section 36, and the other end of the polished rod section 35 is connected to the ring 32. This solution facilitates the threaded connection between the connecting rod and the connecting base 21.

[0037] Specifically, the connecting seat 21 is a rectangular block, one end of the connecting seat 21 has a round head structure 25, and the screw hole 23 is arranged on the end face of the other end of the connecting seat 21, so that the structure of the connecting seat 21 is relatively simple, and the design of the round head structure can better avoid it from causing damage to surrounding components.

[0038] Preferably, the through hole 37 is located on one end of the polished rod segment 35 close to the threaded segment 36 , so as to better achieve the purpose of driving the sleeve to rotate with less effort.

[0039] Specifically, the connection between the threaded segment 36 and the polished rod segment 35 features a stoppered step surface for interfacing with the connecting seat. With this solution, the threaded segment can be tightened until the stoppered step surface presses against the connecting seat, thereby ensuring a more secure and reliable connection between the towing hook and the connecting seat. It can be understood that the diameter of the threaded segment 36 is smaller than the diameter of the polished rod segment 35. Preferably, the axis of the through hole intersects and is perpendicular to the axis of the connecting rod, and the axis of the circular ring intersects and is perpendicular to the extension of the axis of the connecting rod. This ensures that the towing hook is subjected to more uniform force in different usage environments and is less susceptible to damage.

[0040] Furthermore, the connecting seat 21 is detachably connected to the vehicle frame 11 .

[0041] Specifically, the connecting base 21 and the vehicle frame 11 can be connected by fastening bolts. Preferably, the connecting base is provided with two connecting holes 24 for the screw rods of the fastening bolts 22 to pass through, and the vehicle frame is provided with mounting holes corresponding to the two connecting holes. During installation, the screw rods of the fastening bolts are passed through the connecting holes and the mounting holes, and then engaged with the fastening nuts, and then tightened to achieve the connection between the connecting base and the vehicle frame. It is understood that the connecting base can be connected to the front end of the vehicle frame, or it can be connected to the rear end of the vehicle frame.

[0042] like Figures 5 to 7 As shown, the second end 44 of the spare tire lifter rocker 41 has a threaded hole 43 , which is coaxial with the spare tire lifter rocker and is used to threadably engage with the connecting stud 52 of the crowbar head 51 . With this solution, when it is necessary to pry off the tire on the rim, the connecting stud 52 of the crowbar head is tightened into the threaded hole 43 of the spare tire lifter rocker 41, thereby realizing the installation of the crowbar head and the spare tire lifter rocker, and the spare tire lifter rocker can be used as a crowbar rod. Then, the flat part of the crowbar head is inserted between the tire and the rim, and the spare tire lifter rocker can be used to pry off the tire on the rim with less effort, thereby making the spare tire lifter rocker have the function of a crowbar rod, which effectively eliminates the crowbar rod used in conjunction with the crowbar head in the prior art, and only the crowbar head needs to be retained, thereby further reducing the number of on-board tools. At the same time, since the crowbar rod in the prior art is long, after eliminating the crowbar rod, the loading space of the vehicle occupied by the on-board tools can be further reduced.

[0043] Specifically, the first end 42 of the spare tire lifter rocker 41 is a first clamping block for engaging with a clamping hole on the rotating shaft of the spare tire lifter 61. With this solution, by inserting the first clamping block into the clamping hole and then rotating the spare tire lifter rocker, the rotating shaft can be rotated accordingly, thereby driving the spare tire to be raised or lowered via the spare tire lifter chain.

[0044] It is understandable that the spare tire lifter 61 can be a chain lifter commonly used in the prior art. By rotating the rotation axis of the spare tire lifter using the spare tire lifter rocker 41, the spare tire can be lifted and lowered through the chain 62. Figure 8 Preferably, the latching hole on the rotating shaft is a regular hexagonal hole, and the first latching block is a regular hexagonal block, i.e., a regular hexagonal prism, that matches the latching hole on the rotating shaft. The spare tire lifter is installed between the left and right longitudinal beams of the vehicle frame, does not occupy the vehicle's loading space, and solves the problem of large tools occupying the vehicle's loading space.

[0045] Preferably, the second end 44 of the spare tire lifter rocker 41 is a second clamping block for engaging with the clamping hole of a removal wrench, thereby enabling the removal wrench to be used to rotate the spare tire lifter rocker with relatively little effort. It is understood that the clamping hole on the removal wrench is generally a regular hexagonal hole, and the second clamping block is a regular hexagonal block, i.e., a regular hexagonal prism, that is compatible with the clamping hole on the removal wrench.

[0046] In one embodiment of the present invention, the through hole is a polygonal hole, and the spare tire lifter rocker has a polygonal block near the second end thereof that engages with the through hole. With this solution, by passing the first end of the spare tire lifter rocker through the through hole on the connecting rod of the tow hook and then engaging the polygonal block with the through hole, the tow hook can be used as a labor-saving rod, such as Figure 9 As shown, by rotating the tow hook 31 around the axis of the spare tire lifter rocker 41, the rotation of the rotating shaft of the spare tire lifter can be achieved with relatively little effort, thereby achieving the lifting and lowering of the tire. It can be seen that the tow hook of the present invention can also serve as a labor-saving rod, which makes the tow hook not only have its own tow hook function, but also have the functions of a nut sleeve and a labor-saving rod. It can be preferred that the through hole is a square hole or a regular hexagonal hole, and the polygonal block is a regular quadrangular prism or a regular hexagonal prism that is compatible with the through hole; the first block, the second block and the polygonal block are all coaxial with the spare tire lifter rocker; when not in use, the tow hook and the crowbar head can be placed in the glove box on the vehicle without occupying the loading space of the vehicle.

[0047] The tow hook of the present invention has multiple functions and can be used in conjunction with different on-board tools, thereby reducing the on-board tools of the vehicle, saving the loading space of the vehicle, and reducing the vehicle's own weight and cost.

[0048] The above are only preferred embodiments of the present invention. It should be pointed out that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. Moreover, after reading the contents of the present invention, relevant technical personnel in this field can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to this application.

Claims

1. A towing hook device, characterized in that: The invention comprises a connecting seat for connecting to a vehicle frame and a towing hook, wherein the towing hook comprises a circular ring, a sleeve connected to the middle position of one side of the circular ring, and a connecting rod connected to the middle position of the other side of the circular ring. The connecting rod and the sleeve are coaxially arranged, and the axis of the circular ring is perpendicular to the axis of the connecting rod. The center hole of the sleeve is used to engage with the tire nut, and the end of the connecting rod away from the circular ring is used to connect to the connecting seat. The connecting rod is provided with a through hole for the first end of the spare tire lifter rocker to pass through. The second end of the spare tire lifter rocker has a threaded hole, the threaded hole is coaxial with the spare tire lifter rocker, and the threaded hole is used to threadably engage with the connecting stud of the crowbar head; The first end of the rocker of the spare tire lifter is a first clamping block for engaging with a clamping hole on the rotating shaft of the spare tire lifter; The second end of the spare tire lifter rocker is a second clamping block for engaging with the clamping hole of the disassembly wrench; The through hole is a polygonal hole, and a polygonal block engaging with the through hole is provided on the rocker arm of the spare tire lifter near the second end.

2. The towing hook device according to claim 1, characterized in that: A screw hole is provided on the connecting seat, and the connecting rod includes a coaxially arranged threaded section and a polished rod section. The threaded section is used to threadably cooperate with the screw hole. One end of the polished rod section is connected to the threaded section, and the other end of the polished rod section is connected to the circular ring.

3. The towing hook device according to claim 2, characterized in that: The connecting seat is a rectangular block, one end of the connecting seat has a round head structure, and the screw hole is arranged on the end surface of the other end of the connecting seat.

4. The towing hook device according to claim 2, characterized in that: The through hole is located on one end of the polished rod segment close to the threaded segment.

5. The towing hook device according to claim 2, characterized in that: The connection between the threaded section and the polished rod section has a limiting step surface for blocking with the connecting seat.

6. The towing hook device according to claim 1, characterized in that: The connecting seat is detachably connected to the vehicle frame.

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