Tow hook and automobile

Abstract

The invention provides a tow hook and an automobile. The tow hook comprises a hook body, a main shaft, a sliding block, at least one locking piece, a driving shaft and a driving piece, the hook body is provided with at least one locking groove, the main shaft is provided with at least one main shaft hole, the sliding block is provided with at least one containing groove, the at least one locking piece is located in the at least one locking groove and the at least one main shaft hole, and the driving shaft is installed in the center hole and penetrates through the sliding block. The driving piece is connected with the driving shaft, when the hook body is in an unlocking state, the at least one locking piece is located in the at least one main shaft hole and the at least one containing groove, and when the hook body is in a locking state, the at least one locking piece is located in the at least one locking groove and the at least one main shaft hole. The driving shaft and the sliding block enable the locking piece to move to achieve locking and unlocking of the hook body, the hook body is controlled to rotate by the preset angle during unlocking, the tow hook is suitable for different working conditions, the functionality and practicability of the tow hook are improved, the tow hook is simple in structure and not prone to damage, and the travel requirements of passengers are met.

Description

Technical Field

[0001] The present application relates to the field of automobile technology, and in particular to a trailer hook and an automobile. Background Art

[0002] With the development of science and technology, the demand and application of automobiles are gradually increasing. At the same time, the trailer hook of the automobile has also become a device that needs attention and optimization. However, the existing trailer hook is prone to shaking during use and is not stable during use. It is not suitable for different working conditions and cannot meet the different needs of passengers. In addition, the structure of the trailer hook that can be unlocked and locked is complex and easy to be damaged, which reduces the functionality and practicality of the trailer hook and cannot guarantee the travel needs of the passengers. Summary of the invention

[0003] The embodiments of the present application provide a trailer hook and a vehicle, which can solve at least part of the above-mentioned technical problems.

[0004] In a first aspect, the present application provides a trailer hook, applied to a car, comprising:

[0005] A hook body, wherein the hook body is provided with at least one locking groove;

[0006] A main shaft, the hook body is sleeved on the main shaft, the main shaft is provided with at least one main shaft hole, and the at least one main shaft hole is provided corresponding to at least part of the locking groove in the at least one locking groove;

[0007] A slider, the slider is movably installed in the center hole of the spindle, the slider is provided with at least one receiving groove, and the at least one receiving groove is provided corresponding to the at least one spindle hole;

[0008] at least one locking member, located in the at least one locking groove and the at least one spindle hole;

[0009] A drive shaft, the drive shaft is installed in the center hole and penetrates the slider;

[0010] a driving member, the driving member being connected to the driving shaft, the driving member being used to drive the driving shaft to rotate, so that the driving shaft causes the slider to move in a first direction or a second direction during the rotation, so as to drive the at least one locking member to move between the at least one spindle hole, the at least one receiving groove and the at least one locking groove, wherein the first direction and the second direction are two directions set based on the length direction of the slider, the first direction is toward the driving member, and the second direction is the opposite direction of the first direction;

[0011] The hook body has an unlocked state and a locked state, and when the hook body is in the unlocked state, the at least one locking member is located in the at least one spindle hole and the at least one receiving groove;

[0012] When the hook body is in a locked state, the at least one locking member is located in the at least one locking groove and the at least one spindle hole.

[0013] In a second aspect, the present application provides a car, comprising:

[0014] The trailer hook mentioned above.

[0015] The present application provides a trailer hook and a car. The trailer hook is applied to a car, and the trailer hook includes a hook body, a main shaft, a slider, at least one locking member, a drive shaft and a driving member, the hook body is provided with at least one locking groove, the hook body is sleeved on the main shaft, the main shaft is provided with at least one main shaft hole, the at least one main shaft hole is provided corresponding to at least part of the locking grooves in the at least one locking groove, the slider is movably installed in the center hole of the main shaft, the slider is provided with at least one accommodating groove, the at least one accommodating groove is provided corresponding to the at least one main shaft hole, the at least one locking member is located in the at least one locking groove and the at least one main shaft hole, the drive shaft is installed in the center hole and penetrates the slider, the driving member is connected to the drive shaft, and the driving member is used to drive the driving member. The shaft rotates, so that the driving shaft moves the slider in the first direction or the second direction during the rotation process, so as to drive the at least one locking member to move between the at least one main shaft hole, the at least one receiving groove and the at least one locking groove, wherein the first direction and the second direction are two directions set based on the length direction of the slider, the first direction is toward the driving member, and the second direction is the opposite direction of the first direction, and the hook body has an unlocked state and a locked state, when the hook body is in the unlocked state, the at least one locking member is located in the at least one main shaft hole and the at least one receiving groove, when the hook body is in the locked state, the at least one locking member is located in the at least one locking groove and the at least one main shaft hole. The automobile includes the above-mentioned trailer hook. The present application realizes unlocking and locking of the hook body by moving the locking member through the driving shaft and the slider. Locking the hook body can improve the stability when using the hook body. When unlocking, the hook body is controlled to rotate to a preset angle, so that the trailer hook can be suitable for different working conditions and meet the different needs of the passengers, thereby improving the functionality and practicality of the trailer hook. In addition, the trailer hook has a simple structure and is not easy to be damaged, thereby ensuring the travel needs of the passengers. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic block diagram of a car in an embodiment of the present application.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of a trailer hook in one embodiment of the present application.

[0019] Figure 3 In one embodiment of the present application Figure 2 Exploded diagram.

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the trailer hook in one embodiment of the present application in another state.

[0021] Figure 5 In one embodiment of the present application Figure 4 Schematic diagram of the three-dimensional structure of the hook body at B.

[0022] Figure 6 In one embodiment of the present application Figure 2 Schematic diagram of a portion of the structure in the locked state at A.

[0023] Figure 7 In one embodiment of the present application Figure 6 Cross-section at C.

[0024] Figure 8 In one embodiment of the present application Figure 6 Cross-section at D.

[0025] Fig. 9 In one embodiment of the present application Figure 2 Schematic diagram of a portion of the structure in the unlocked state at A.

[0026] Fig.10 In one embodiment of the present application Fig. 9 Section view at E.

[0027] Fig.11 In one embodiment of the present application Fig. 9 Section view at F.

[0028] Fig.12 It is a schematic diagram of the three-dimensional structure of the driving plate and the hook cover plate in one embodiment of the present application.

[0029] Fig.13It is a schematic diagram of a boss in a cover plate groove in an embodiment of the present application.

[0030] Figure Number:

[0031] Cars - 100;

[0032] Trailer hook - 1;

[0033] Hook body-11; locking groove-111; hook body hole-112; first connecting hole-113; main shaft-12; main shaft hole-121; center hole-122; first end-123; second end-124; opening-125; slider-13; accommodating groove-131; slide groove-132; bottom wall-133; supporting inclined surface-134; locking member-14; driving shaft-15; protrusion-151; first direction-152; second direction-153; elastic member-16; driving plate-17; boss-171; hook body cover-18; cover groove-181; second connecting hole-182; mounting seat-19; first mounting part-191; second mounting part-192; fastener-20; mounting hole-21; insertion hole-22; height direction-23. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0035] In the description of the embodiments of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper" and "lower" is based on the orientation or positional relationship shown in the accompanying drawings. The term "connection" in this application, unless otherwise specified, mainly refers to a physical structural connection, and may also include meanings such as direct connection or indirect connection when specified. The terms "first" and "second" in the specification and claims of this application and the drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the term "includes" and any variations thereof are intended to cover non-exclusive inclusions.

[0036] See also Figure 1 , Figure 1 1 is a schematic block diagram of a vehicle 100 in an embodiment of the present application. The vehicle 100 includes a trailer hook 1 .

[0037] The trailer hook 1 is used to connect the automobile 100 to a trailer or other towing equipment, providing traction and connectivity between vehicles to achieve the towing and transportation functions of the automobile 100 .

[0038] In some embodiments, the automobile 100 further includes an input module, and the input module is used to output an operation signal. The controller of the trailer hook 1 receives the operation signal to control the movement of the driving member of the trailer hook 1.

[0039] Therefore, by controlling the movement of the driving member of the trailer hook 1 through the input module, the user can adjust the state of the trailer hook 1 as needed and adapt to different working conditions of the automobile 100, thereby improving the applicability of the trailer hook 1.

[0040] In some embodiments, the input module is an operable device such as a button, a touch screen, a remote controller, a voice input device, etc.

[0041] In other embodiments, the input module can display status information of the trailer hook 1, wherein the status information includes the working status of the trailer hook 1 and the rotation angle of the internal components of the trailer hook 1, and the working status includes an unfolded state and a folded state.

[0042] See also Figure 2 , Figure 3 , Figure 6 , Figure 7 and Figure 8 , Figure 2 Schematic diagram of the three-dimensional structure of the trailer hook 1 in one embodiment of the present application. Figure 3 In one embodiment of the present application Figure 2 Exploded diagram of Figure 6 In one embodiment of the present application Figure 2 Schematic diagram of a part of the structure in the locked state at A, Figure 7 In one embodiment of the present application Figure 6 The cross-section at C, Figure 8 In one embodiment of the present application Figure 6The sectional view at D. The trailer hook 1 is applied to a car 100, and the trailer hook 1 comprises a hook body 11, a main shaft 12, a slider 13, at least one locking member 14, a drive shaft 15 and a driving member (not shown in the figure), the hook body 11 is provided with at least one locking groove 111, the hook body 11 is sleeved on the main shaft 12, the main shaft 12 is provided with at least one main shaft hole 121, the at least one main shaft hole 121 is provided corresponding to at least part of the locking groove 111 in the at least one locking groove 111, the slider 13 is movably installed in the center hole 122 of the main shaft 12, the slider 13 is provided with at least one accommodating groove 131, the at least one accommodating groove 131 is provided corresponding to the at least one main shaft hole 121, the at least one locking member 14 is located in the at least one locking groove 111 and the at least one main shaft hole 121, the drive shaft 15 is installed in the center hole 122 and penetrates the slider 13, and the driving member is connected to the drive shaft 15, the driving member is used to drive the driving shaft 15 to rotate, so that the slider 13 moves along the first direction 152 or the second direction 153, so as to drive the at least one locking member 14 to move between the at least one main shaft hole 121, the at least one receiving groove 131 and the at least one locking groove 111, wherein the first direction 152 and the second direction 153 are two directions set based on the length direction of the slider 13, the first direction 152 is toward the driving member, and the second direction 153 is the opposite direction of the first direction 152, and the hook body 11 has an unlocked state and a locked state, when the hook body 11 is in the unlocked state, the at least one locking member 14 is located in the at least one main shaft hole 121 and the at least one receiving groove 131, when the hook body 11 is in the locked state, the at least one locking member 14 is located in the at least one locking groove 111 and the at least one main shaft hole 121.

[0043] Thus, the drive shaft 15 and the slider 13 enable the at least one locking member 14 to unlock and lock the hook body 11. Locking the hook body 11 can improve the stability of using the hook body 11. When unlocking, the hook body 11 is controlled to rotate to a preset angle, so that the trailer hook 1 can be suitable for different working conditions and meet the different needs of passengers, thereby improving the functionality and practicality of the trailer hook 1. In addition, the trailer hook 1 has a simple structure and is not easy to be damaged, thereby ensuring the travel needs of the passengers.

[0044] Among them, Figure 6-Figure 8As shown, when the at least one main shaft hole 121 is respectively connected to the at least one locking groove 111, a cavity for accommodating the locking member 14 can be formed between each main shaft hole 121 and the corresponding connected locking groove 111. Since a part of the locking member 14 is located in the locking groove 111 and the other part is located in the main shaft hole 121, and the slider 13 also applies pressing force to the locking member 14 to limit its movement, the locking member 14 can limit the relative movement between the main shaft hole 121 and the locking groove 111, so that the hook body 11 is in a locked state.

[0045] Please also read Figure 4 , Figure 4 FIG. 1 is a schematic diagram of the three-dimensional structure of the trailer hook 1 in another state in one embodiment of the present application. Figure 2 and Figure 4 As shown, when the preset angle is 180°, the working state of the hook body 11 is divided into an extended state and a retracted state. When unlocked, the hook body 11 rotates 180° on the main shaft 12 to enter the retracted state from the extended state, or enter the extended state from the retracted state, and the hook body 11 is locked after rotating 180° so that it cannot rotate on the main shaft 12, thereby improving the stability of the trailer hook 1. Figure 2 The trailer hook 1 is in an unfolded state, in which the hook body 11 is exposed from the chassis of the automobile 100 to perform the connecting function of the trailer hook 1. Figure 4 The folded state of the trailer hook 1 is shown in FIG. 1 , where the hook body 11 is hidden in the chassis of the car 100 to avoid affecting the normal driving of the car 100 and make the car 100 neat and beautiful. The hook body 11 is provided with a plurality of locking grooves 111, the spindle 12 is provided with a plurality of spindle holes 121, and the plurality of spindle holes 121 are provided corresponding to at least some of the locking grooves 111 in the plurality of locking grooves 111, the slider 13 is provided with a plurality of receiving grooves 131, and the plurality of receiving grooves 131 are provided corresponding to the plurality of spindle holes 121, and the at least one locking member 14 is located in at least one locking groove 111 in the plurality of locking grooves 111 and in at least one spindle hole 121 corresponding to the plurality of spindle holes 121.

[0046] In some other embodiments, the preset rotation angle of the hook body 11 is 120°.

[0047] In some other embodiments, the preset rotation angle of the hook body 11 is 60°.

[0048] In other embodiments, the preset rotation angle of the hook body 11 is 360°, and a locking member 14, a locking groove 111, a main shaft hole 121 and a receiving groove 131 can be provided, or multiple locking members 14, multiple locking grooves 111, multiple main shaft holes 121 and multiple receiving grooves 131 can be provided respectively, which is not limited here.

[0049] It is understandable that the preset angle of rotation of the hook body 11 is not limited to the preset angle in the above embodiment, and the trailer hook 1 can be designed according to actual needs, which is not limited here.

[0050] In some embodiments, the hook body 11 is provided with six locking grooves 111 , the main shaft 12 is provided with three main shaft holes 121 , and the sliding block 13 is provided with three receiving grooves 131 .

[0051] It is understandable that the number of the locking members 14 can be set as needed, and the number of the locking grooves 111 , the spindle holes 121 and the receiving grooves 131 is set according to the preset angle and the number of the locking members 14 , which is not limited here.

[0052] In some embodiments, such as Figure 3 As shown, the hook body 11 includes a hook body hole 112 , and the main shaft 12 passes through the hook body hole 112 , so that the hook body 11 is mounted on the main shaft 12 .

[0053] Please also read Figure 9-11 , Fig. 9 In one embodiment of the present application Figure 2 Partial structural diagram of the unlocked state at A, Fig.10 In one embodiment of the present application Fig. 9 The cross-section at E, Fig.11 In one embodiment of the present application Fig. 9 Cross-sectional view at F. The design scheme that the driving member drives the driving shaft 15 to rotate, causes the slider 13 to move along the first direction 152 or the second direction 153, and drives the at least one locking member 14 to move between the at least one spindle hole 121, the at least one receiving groove 131, and the at least one locking groove 111 can simplify the structure of the trailer hook 1, facilitate unlocking and locking the hook body 11, and improve the functionality and practicality of the trailer hook 1.

[0054] As mentioned above, the driving shaft 15 drives the at least one locking member 14 to move from the at least partial locking groove 111 and the at least one main shaft hole 121 to the at least one main shaft hole 121 and the at least one receiving groove 131, at which time the hook body 11 is in an unlocked state. After the hook body 11 rotates a preset angle on the main shaft 12, the at least one locking member 14 moves from the at least one main shaft hole 121 and the at least one receiving groove 131 to the at least partial locking groove 111 and the at least one main shaft hole 121, so that the hook body 11 is in a locked state.

[0055] In some embodiments, the driving member is a motor, and the motor is connected to the driving shaft 15 .

[0056] As mentioned above, when the driving shaft 15 moves the slider 13 along the first direction 152, the slider 13 moves to the position where the at least one receiving groove 131 is connected to the at least one spindle hole 121. At this time, the locking member 14 jumps out of the locking groove 111 so that it partially enters the receiving groove 131, and then the locking member 14 does not restrict the movement of the hook body 11. The hook body 11 is in the unlocked state and can rotate on the spindle 12. When the driving shaft 15 moves the slider 13 along the second direction 153, the slider 13 moves to the position where the at least one receiving groove 131 is connected to the at least one spindle hole 121. When the hook 11 is moved, the slider 13 moves to a position where the at least one accommodating groove 131 is staggered from the at least one spindle hole 121. At this time, part of the locking member 14 is pressed from the accommodating groove 131 to the locking groove 111 by the slider 13. At this time, the locking member 14 limits the movement of the hook body 11, and the hook body 11 is in a locked state and cannot rotate on the spindle 12. The slider 13 will not rotate with the rotation of the drive shaft 15, and will only move along the first direction 152 or the second direction 153.

[0057] In other embodiments, when the driving shaft 15 causes the slider 13 to move along the first direction 152, the slider 13 moves to a position where the position of the at least one accommodating groove 131 corresponds to the position of the at least one spindle hole 121. At this time, part of the locking member 14 does not enter the accommodating groove 131, but remains in the locking groove 111 and the spindle hole 121. However, since the locking member 14 is movable in the height direction 23 of the slider 13, when the hook body 11 rotates, the locking member 14 does not restrict the movement of the hook body 11, but makes the hook body 11 in an unlocked state and can rotate on the spindle 12.

[0058] In some embodiments, such as Figure 3 , Figure 7 and Fig.10As shown, the main shaft 12 includes a first end 123 and a second end 124, and the trailer hook 1 also includes an elastic member 16, which is located in the main shaft 12 and between the slider 13 and the second end 124 of the main shaft 12. When the elastic member 16 is compressed by the slider 13 and is in a compressed state, the at least one accommodating groove 131 is respectively connected to the at least one main shaft hole 121. The elastic member 16 is also used to push the slider 13 to move along the second direction 153 through elastic restoring force during the process of returning from the compressed state to the natural state, so that the at least one accommodating groove 131 is respectively staggered with the at least one main shaft hole 121, so as to press the at least one locking member 14 from the at least one main shaft hole 121 and the at least one accommodating groove 131 to the at least one locking groove 111 and the at least one main shaft hole 121.

[0059] Thus, the elastic restoring force of the elastic member 16 pushes the slider 13 to move along the second direction 153 to reset, and the at least one accommodating groove 131 is respectively staggered with the at least one main shaft hole 121, so that the slider 13 applies a pressing force to the locking member 14. This reset design can simplify the structure of the trailer hook 1, facilitate production, reduce production costs, and facilitate replacement of internal parts.

[0060] As mentioned above, Figure 9-11 As shown, when the driving shaft 15 moves the slider 13 along the first direction 152, the slider 13 moves to a position where the at least one receiving groove 131 is connected to the at least one spindle hole 121 according to the thrust applied by the driving shaft 15. At this time, the elastic member 16 changes from a natural state to a compressed state due to the thrust of the slider 13, and the hook body 11 is in an unlocked state and can rotate on the spindle 12, as shown in FIG. Figure 6-Figure 8 As shown, when the driving shaft 15 no longer applies thrust to the slider 13, the elastic member 16 needs to return to a natural state from a compressed state, so the elastic member 16 will generate an elastic restoring force to push the slider 13 to move along the second direction 153. Under the action of the elastic restoring force of the elastic member 16, the slider 13 will gradually move to the initial position along the second direction 153, thereby making the at least one accommodating groove 131 respectively staggered with the at least one spindle hole 121. At this time, part of the locking member 14 is pressed by the slider 13 from the accommodating groove 131 to the locking groove 111, so that the hook body 11 is in a locked state and cannot rotate on the spindle 12.

[0061] In some other implementations, the distance that the slider 13 moves along the first direction 152 is limited by the limit compression of the elastic member 16 itself. The limit compression of the elastic member 16 itself can just move the slider 13 to the position where the at least one accommodating groove 131 is respectively connected to the at least one main shaft hole 121. At this time, even if the drive shaft 15 still generates thrust on the slider 13, the slider 13 can no longer move due to the limit of the limit compression of the elastic member 16.

[0062] It is understandable that the elastic member 16 may be, but is not limited to, a spring, as long as it has a limit compression amount and can generate elastic restoring force.

[0063] In some embodiments, such as Figure 7 and Fig.10 As shown, a protrusion 151 is provided on a part of the circumference of one end of the driving shaft 15 close to the driving member, a slide groove 132 is recessed on one end of the sliding block 13 close to the driving member, and a supporting inclined surface 134 is provided on a part of the circumference of the bottom wall 133 of the slide groove 132. During the rotation of the driving shaft 15, the protrusion 151 contacts the supporting inclined surface 134 to push the sliding block 13 to move along the first direction 152. When the driving shaft 15 continues to rotate so that the protrusion 151 approaches the bottom wall 133 of the slide groove 132 excluding the supporting inclined surface 134, the sliding block 13 remains stationary or the elastic restoring force of the elastic member 16 pushes the sliding block 13 to move along the second direction 153.

[0064] Thus, the movement of the slider 13 is controlled by the cooperation between the protrusion 151 and the slide groove 132, and the slider 13 is reset by the elastic member 16, so that the structure of the trailer hook 1 is simpler, the unlocking and locking of the hook body 11 is facilitated, and the functionality and practicality of the trailer hook 1 are improved.

[0065] In some embodiments, the abutting inclined surface 134 includes a first inclined surface and a second inclined surface, the first inclined surface is connected to the second inclined surface, the slope of the first inclined surface gradually increases from zero to the optimal slope at the first dividing line, and the optimal slope is maintained from the first dividing line to the connection between the second inclined surface and the first inclined surface, the slope of the second inclined surface maintains the optimal slope from the connection to the second dividing line, and the slope of the second inclined surface gradually decreases to zero from the second dividing line. The optimal slope is the optimal thrust applied by the drive shaft 15 to the slider 13, and the slider 13 is moved to the position where the at least one receiving groove 131 is respectively connected to the at least one spindle hole 121 by the optimal thrust.

[0066] As mentioned above, when the protrusion 151 begins to contact the first inclined surface, the slider 13 is in a state ready to move. As the drive shaft 15 rotates and the inclination of the first inclined surface increases, the protrusion 151 pushes the slider 13 to move along the first direction 152 until the protrusion 151 rotates to the first dividing line, and the at least one accommodating groove 131 is respectively connected to the at least one main shaft hole 121. At this time, the hook body 11 is in an unlocked state, and the drive shaft 15 continues to rotate. The hook body 11 is always in an unlocked state and rotates on the main shaft 12 with the drive shaft 15.

[0067] The driving shaft 15 continues to rotate, and the protrusion 151 still moves on the second inclined surface. When the protrusion 151 exceeds the second dividing line, the slope of the second inclined surface gradually decreases, and the protrusion 151 gradually approaches the bottom wall 133 of the slide groove 132 except the abutting inclined surface 134, and the thrust of the protrusion 151 on the slider 13 also gradually decreases. However, since the rotation angle of the hook body 11 is between 120° and 180°, the at least one spindle hole 121 is not respectively connected to the at least part of the locking groove 111, and the hook body 11 is in the height direction. 23 will apply pressure to the locking member 14 to limit its movement, so that the locking member 14 is still located in the at least one main shaft hole 121 and the at least one accommodating groove 131, and the hook body 11 is also still in an unlocked state until the hook body 11 rotates to 180°, the at least one main shaft hole 121 is respectively connected with the at least part of the locking groove 111, and the elastic member 16 pushes the slider 13 to move to the initial position through the elastic restoring force, and the at least one locking member 14 is respectively pressed into the corresponding main shaft hole 121 and the locking groove 111, and the hook body 11 enters a locked state.

[0068] Among them, the circumferential angle between the first cutting line and the second cutting line is 140°, which also means that the rotation angle of the hook body 11 in this process is less than or equal to 140°, and the circumferential angle between the second cutting line and the position where the slope of the second inclined surface is zero needs to be less than or equal to 40° to ensure that after the hook body 11 rotates to 180°, the elastic member 16 pushes the slider 13 to move to the initial position through the elastic restoring force.

[0069] It is understandable that the protrusion 151 can be but not limited to a cube or arc shape, the slide groove 132 can be but not limited to a slope shape, and the circumferential angle of the supporting slope 134 can be set according to a preset angle, which is not limited here.

[0070] See also Fig.12 and Fig.13 , Fig.12 Schematic diagram of the three-dimensional structure of the driving plate 17 and the hook cover plate 18 in one embodiment of the present application. Fig.13 Schematic diagram of the boss 171 in the cover plate groove 181 in one embodiment of the present application. In some embodiments, the trailer hook 1 further includes a drive plate 17 and a hook body cover plate 18, the hook body cover plate 18 is installed on the second end 124 of the main shaft 12, and the outer side of the hook body cover plate 18 is connected to the hook body 11, the drive plate 17 is installed between the hook body cover plate 18 and the second end 124 and connected to the hook body cover plate 18, the second end 124 is provided with an opening 125, one end of the drive shaft 15 close to the second end 124 passes through the opening 125 and penetrates the drive plate 17, and the drive shaft 15 drives the drive plate 17 to rotate, so that the drive plate 17 drives the hook body cover plate 18 and the hook body 11 to rotate on the main shaft 12 by a preset angle.

[0071] Thus, the driving plate 17 is driven by the driving member to rotate, and the hook cover plate 18 is driven by the driving plate 17 to rotate a preset angle when the hook body 11 is in the unlocked state, thereby driving the hook body 11 to rotate a preset angle. This design can make it easier to adjust the working state of the trailer hook 1 as needed, thereby improving the functionality and practicality of the trailer hook 1.

[0072] In some embodiments, such as Fig.12 and Fig.13 As shown, at least one boss 171 is provided on the driving plate 17, and at least one cover plate groove 181 is provided on the hook body cover plate 18, and the at least one boss 171 enters into the at least one cover plate groove 181 respectively. When the driving plate 17 rotates and drives the at least one boss 171 to slide in the at least one cover plate groove 181 respectively, the driving plate 17 cannot drive the hook body cover plate 18 and the hook body 11 to rotate on the axis of the main shaft 12. When the driving plate 17 rotates and drives the at least one boss 171 to move from one end of the at least one cover plate groove 181 to the other end of the at least one cover plate groove 181 respectively in the at least one cover plate groove 181, the at least one boss 171 abuts against the side wall surface of the at least one cover plate groove 181 respectively, and the continued rotation of the driving plate 17 drives the hook body cover plate 18 and the hook body 11 to rotate on the main shaft 12 by a preset angle.

[0073] Thus, the driving plate 17 rotates and drives the at least one boss 171 to slide in the at least one cover plate groove 181, so that the hook body 11 cannot be driven to rotate when the hook body 11 is not unlocked, and the hook body 11 is driven to rotate after the hook body 11 is unlocked. Through this design, it is easier to adjust the working state of the trailer hook 1 according to needs, thereby improving the functionality and practicality of the trailer hook 1.

[0074] As mentioned above, the at least one boss 171 is regarded as a main body, and at least one of the at least one boss 171 represents that the total number of all the bosses 171 is at least one, and does not mean at least one boss 171 among all the bosses 171. The representative meaning of the at least one cover plate groove 181 is the same as above.

[0075] It can be understood that the shape of the at least one cover plate groove 181 can be but is not limited to an arc shape, and can be designed according to actual needs, which is not limited here.

[0076] Please also read Figure 5 , Figure 5 In one embodiment of the present application Figure 4 A schematic diagram of the three-dimensional structure of the hook body 11 at B. In some embodiments, as Figure 5 and Fig.12 As shown, the hook body 11 is provided with a first connecting hole 113, and the side of the hook body cover plate 18 is provided with a second connecting hole 182 corresponding to the first connecting hole 113, and the fastener 20 passes through the first connecting hole 113 and the second connecting hole 182 to fasten the hook body 11 and the hook body cover plate 18.

[0077] In some other embodiments, the hook body 11 and the hook body cover plate 18 are integrally formed, and the drive shaft 15 and the drive plate 17 are integrally formed.

[0078] In some embodiments, such as Figure 3 As shown, the trailer hook 1 further includes a mounting seat 19 , and the mounting seat 19 is installed between the body of the automobile 100 and the main shaft 12 to connect the body of the automobile 100 and the trailer hook 1 .

[0079] Thus, the installation of the mounting seat 19 fixes the trailer hook 1 on the crossbeam of the chassis of the automobile 100 , making it easier to use the trailer hook 1 .

[0080] In some embodiments, the mounting seat 19 includes a first mounting portion 191 and a second mounting portion 192 , wherein the first mounting portion 191 is mounted on a cross beam of the automobile 100 , and the second mounting portion 192 is used to mount the main shaft 12 .

[0081] Therefore, the provision of the first mounting portion 191 and the second mounting portion 192 better connects the body of the automobile 100 and the trailer hook 1 , making it easier to use the trailer hook 1 .

[0082] In some embodiments, the first mounting portion 191 is welded to the crossbeam.

[0083] In some embodiments, the first mounting portion 191 is configured to be in an arc shape to fit the crossbeam.

[0084] In some embodiments, such as Figure 3 As shown, the trailer hook 1 further includes a fastener 20 , the second mounting portion 192 is provided with a mounting hole 21 , the first end 123 of the main shaft 12 is inserted into the mounting hole 21 , and the first end 123 and the second mounting portion 192 are fixedly connected by the fastener 20 .

[0085] Thus, the first end 123 and the second mounting portion 192 are fixedly connected by the fastener 20 , thereby fixing the main shaft 12 and the mounting seat 19 , thereby improving the connection stability of the trailer hook 1 .

[0086] In some embodiments, the first end 123 of the spindle 12 and the side of the mounting hole 21 are correspondingly provided with an insertion hole 22, and the fastener 20 is inserted into the insertion hole 22 to fix the first end 123 and the second mounting portion 192. The fastener 20 is a screw, and the insertion hole 22 is a screw hole.

[0087] In some embodiments, the trailer hook 1 further includes a controller, and the controller is used to control the movement of the driving member to control the sliding block 13 to move along the first direction 152 or the second direction 153 .

[0088] Thus, the controller controls the movement of the driving member, and further controls the movement of the slider 13 when necessary, so that the trailer hook 1 enters an unlocked or locked state, so that the hook body 11 can rotate in the unlocked state to meet the needs of users and different working conditions, and improve the stability of the trailer hook 1 in the locked state to avoid the hook body 11 shaking and causing accidents.

[0089] The specific operation process is as follows:

[0090] Assuming that the preset angle is 180°, and the initial state of the trailer hook 1 is preset to be the unfolded state, and the hook body 11 is in the locked state, the driving member drives the driving shaft 15 to rotate, and during the rotation of the driving shaft 15, the protrusion 151 contacts the slide groove 132 to push the slider 13 to move along the first direction 152, and the slider 13 pushes the elastic member 16 to a compressed state, and the slider 13 moves from the initial position to the position where the at least one accommodating groove 131 is respectively connected with the at least one main shaft hole 121. At this time, the hook body 11 is in the unlocked state, and the driving plate 17 is driven by the driving shaft 15, and the at least one protrusion 171 moves from one end of the at least one cover plate groove 181 to the other end of the at least one cover plate groove 181 in the at least one cover plate groove 181, and respectively abuts against the side wall surface of the at least one cover plate groove 181, and the driving shaft 15 Continuing to rotate along the same rotation direction, the driving plate 17 drives the hook cover plate 18 and the hook body 11 to rotate on the main shaft 12. When the hook body 11 rotates 180° on the main shaft 12, the trailer hook 1 is in a retracted state, and the protrusion 151 no longer contacts the slide groove 132. Therefore, the protrusion 151 will not apply a thrust to the slide groove 132. The elastic member 16 needs to return to a natural state. Therefore, the elastic restoring force generated by the elastic member 16 will push the slider 13 to move along the second direction 153 to the initial position. At this time, at least part of the locking grooves 111 are respectively connected to the at least one main shaft hole 121, and the at least one accommodating groove 131 is respectively staggered with the at least one main shaft hole 121. Part of the locking member 14 is pressed by the slider 13 from the accommodating groove 131 to the locking groove 111, so that the hook body 11 is in a locked state and cannot rotate on the main shaft 12.

[0091] If the trailer hook 1 needs to be changed from the folded state to the unfolded state, the driving member can drive the driving shaft 15 to reverse, wherein the reverse rotation means that the rotation direction of the driving shaft 15 is opposite to the above rotation direction.

[0092] If the hook body 11 is rotated to other different preset angles, the specific operation process is also implemented according to the above operation process.

[0093] The above description is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application; in the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A trailer hook, applied to a car, characterized in that: include: A hook body, wherein the hook body is provided with at least one locking groove; A main shaft, the hook body is sleeved on the main shaft, the main shaft is provided with at least one main shaft hole, and the at least one main shaft hole is provided corresponding to at least part of the locking groove in the at least one locking groove; A slider, the slider is movably installed in the center hole of the spindle, the slider is provided with at least one receiving groove, and the at least one receiving groove is provided corresponding to the at least one spindle hole; at least one locking member, located in the at least one locking groove and the at least one spindle hole; A drive shaft, the drive shaft is installed in the center hole and penetrates the slider; a driving member, the driving member being connected to the driving shaft, the driving member being used to drive the driving shaft to rotate, so that the driving shaft causes the slider to move in a first direction or a second direction during the rotation, so as to drive the at least one locking member to move between the at least one spindle hole, the at least one receiving groove and the at least one locking groove, wherein the first direction and the second direction are two directions set based on the length direction of the slider, the first direction is toward the driving member, and the second direction is the opposite direction of the first direction; The hook body has an unlocked state and a locked state, and when the hook body is in the unlocked state, the at least one locking member is located in the at least one spindle hole and the at least one receiving groove; When the hook body is in a locked state, the at least one locking member is located in the at least one locking groove and the at least one spindle hole.

2. The trailer hook according to claim 1, characterized in that: The main shaft includes a first end and a second end, and the trailer hook also includes an elastic member, which is located in the main shaft and between the slider and the second end of the main shaft. When the elastic member is compressed by the slider and is in a compressed state, the at least one accommodating groove is respectively connected to the at least one main shaft hole. The elastic member is also used to push the slider to move along the second direction through elastic restoring force during the process of returning from the compressed state to the natural state, so that the at least one accommodating groove is respectively staggered with the at least one main shaft hole, so as to press the at least one locking member from the at least one main shaft hole and the at least one accommodating groove to the at least one locking groove and the at least one main shaft hole.

3. The trailer hook according to claim 2, characterized in that: A protrusion is provided on a part of the circumference of one end of the driving shaft close to the driving member, a slide groove is recessed on one end of the sliding block close to the driving member, and a supporting slope is provided on a part of the circumference of the bottom wall of the slide groove. During the rotation of the driving shaft, the protrusion contacts the supporting slope to push the sliding block to move in the first direction. When the driving shaft continues to rotate so that the protrusion approaches the bottom wall of the slide groove excluding the supporting slope, the sliding block remains stationary or the elastic restoring force of the elastic member pushes the sliding block to move in the second direction.

4. The trailer hook according to claim 2, characterized in that: The trailer hook also includes a drive plate and a hook cover plate, the hook cover plate is installed on the second end of the main shaft, and the outer side of the hook cover plate is connected to the hook body, the drive plate is installed between the hook cover plate and the second end and connected to the hook cover plate, the second end is provided with an opening, an end of the drive shaft close to the second end passes through the opening and penetrates the drive plate, the drive shaft drives the drive plate to rotate, so that the drive plate drives the hook cover plate and the hook body to rotate a preset angle on the main shaft.

5. The trailer hook according to claim 4, characterized in that: At least one boss is arranged on the driving plate, and at least one cover plate groove is arranged on the hook body cover plate, and the at least one boss enters into the at least one cover plate groove respectively, and when the driving plate rotates and drives the at least one boss to slide in the at least one cover plate groove respectively, the driving plate cannot drive the hook body cover plate and the hook body to rotate on the axis of the main shaft; when the driving plate rotates and drives the at least one boss to move from one end of the at least one cover plate groove to the other end of the at least one cover plate groove respectively in the at least one cover plate groove, the at least one boss is respectively in contact with the side wall surface of the at least one cover plate groove, and the continued rotation of the driving plate drives the hook body cover plate and the hook body to rotate on the main shaft by a preset angle.

6. The trailer hook according to claim 2, characterized in that: The trailer hook also includes a mounting seat, which is installed between the body of the vehicle and the main shaft to connect the body of the vehicle and the trailer hook.

7. The trailer hook according to claim 6, characterized in that: The mounting seat includes a first mounting portion and a second mounting portion, wherein the first mounting portion is mounted on the cross beam of the automobile, and the second mounting portion is used for mounting the main shaft.

8. The trailer hook according to claim 7, characterized in that: The trailer hook further includes a fastener, the second mounting portion is provided with a mounting hole, the first end of the main shaft is inserted into the mounting hole, and the first end and the second mounting portion are fixedly connected by the fastener.

9. The trailer hook according to claim 1, characterized in that: The trailer hook further includes a controller, and the controller is used to control the movement of the driving member to control the sliding block to move along the first direction or the second direction.

10. An automobile, characterized in that: include: A trailer hook as claimed in any one of claims 1 to 9.

11. The automobile according to claim 10, characterized in that: The automobile further comprises an input module, wherein the input module is used to output an operation signal, and the controller of the trailer hook receives the operation signal to control the movement of the driving member of the trailer hook.

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