Tow hook and vehicle

Abstract

The utility model relates to a tow hook and a vehicle. The tow hook comprises a tow hook body, a telescopic block, an elastic piece, a locking piece and a fixing base. The towing hook body is arranged on the telescopic block and located at the rear end of the telescopic block. The telescopic block can move in the front-back direction relative to the fixed seat; a first locking part is arranged on the fixed seat; the first end of the locking piece is movably arranged on the telescopic block, and the moving direction is perpendicular to the front-back direction. A second end of the locking piece is provided with a second locking part, and when the first locking part and the second locking part form a matching relation, the second locking part is limited by the first locking part in the front-back direction; when the first end of the locking piece moves relative to the telescopic block, the second locking part and the first locking part form a matching relation or are separated from a matching relation; the elastic piece is arranged between the locking piece and the telescopic block and applies elastic force to the locking piece, so that the second locking part is close to the fixed seat when no external force acts on the locking piece, and the second locking part and the first locking part are kept in a matched relation.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to the technical field of vehicles used for towing other vehicles or objects, and more particularly to a trailer hook and a vehicle. Background Art

[0002] A trailer hook is a component that needs to be installed on many vehicles. It is used to tow or rescue vehicles when the vehicle is trapped, loses power, or is unable to drive independently. It can also tow unpowered RVs, etc.

[0003] Existing trailer hooks for installation on vehicles are generally divided into fixed or retractable types. Fixed trailer hooks are exposed and protrude from the rear of the vehicle whether in use or not; retractable trailer hooks extend backward when in use, and retract into the vehicle body when not in use, and are not exposed outside the rear of the vehicle body.

[0004] Fixed trailer hooks protrude from the rear of the vehicle all the time. When not in use, they have a greater impact on the safety of the rear side and can cause greater damage in the event of a rear-end collision. Therefore, retractable trailer hooks are more widely used.

[0005] Existing retractable trailer hooks are prone to the following problems:

[0006] Firstly, when the trailer hook is in use and extended backward, the process is cumbersome and complicated, and generally requires the removal of bolts used for fixing, etc., and the use of tools such as wrenches, which is time-consuming and laborious.

[0007] Secondly, the length of the trailer hook extending backward is fixed, which is usually one distance value or several distance values. The distance of the trailer hook extending backward cannot be arbitrarily fixed at a certain length position within a length range. In this case, the distance of the trailer hook extending backward cannot meet the towing requirements. Utility Model Content

[0008] One of the purposes of the present invention is to provide a seat back to solve the problems of the existing technology that the seat back is flipped over to achieve a large bed mode, such as the large limitations and shortcomings; the second purpose of the present invention is to provide a seat; the third purpose of the present invention is to provide a vehicle.

[0009] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0010] A trailer hook, characterized in that it comprises a towing hook body, a telescopic block, an elastic member, a locking member and a fixed seat; the towing hook body is arranged on the telescopic block and is located at the rear end of the telescopic block; the front end of the telescopic block is movably connected and arranged on the fixed seat, and the telescopic block can move in the front-to-back direction relative to the fixed seat; a first locking portion is arranged on the fixed seat; the first end of the locking member is movably arranged on the telescopic block, and the moving direction is perpendicular to the front-to-back direction; the second end of the locking member is provided with a second locking portion, the second locking portion matches the first locking portion, and when the first locking portion and the second locking portion form a matching relationship, the second locking portion is limited in the front-to-back direction by the first locking portion; when the first end of the locking member moves relative to the telescopic block, the second locking portion on the second end can approach the fixed seat and form a matching relationship with the first locking portion, or move away from the fixed seat and break away from the matching relationship with the first locking portion; the elastic member is arranged between the locking member and the telescopic block, and the elastic member applies elastic force to the locking member, so that the second locking portion approaches the fixed seat when no external force acts on the locking member, and maintains a matching relationship with the first locking portion.

[0011] According to the above technical solution, the telescopic block can move in the front-to-back direction relative to the fixed seat, and the locking member arranged on the telescopic block can also move in the front-to-back direction synchronously with the telescopic block; and, in the process of the movement of the telescopic block and at any position to which it moves, the locking member can move in the direction of the fixed seat under the action of the elastic member, and the second locking portion arranged on the locking member can form a matching relationship with the first locking portion arranged on the fixed seat, based on which the first locking portion locks the second locking portion in the front-to-back direction, and further causes the telescopic block to be locked and limited in the front-to-back direction. That is, the first locking portion and the second locking portion can lock and limit the telescopic block at any position where it moves in the front-to-back direction. At the same time, the locking member can move in the direction of the telescopic block only by being pressed by an external force, so that the second locking portion is disengaged from the matching relationship with the first locking portion, so that the telescopic block is no longer affected by the limiting effect of the first locking portion and can move freely in the front-to-back direction; the method for releasing the locking limit is simple and convenient.

[0012] Further, the fixing seat comprises a tube structure, and the first locking portion is arranged on one side of the tube structure of the fixing seat.

[0013] According to the above technical solution, the tube structure included in the fixing seat can specifically be a square tube, a round tube, an elliptical tube or other structures.

[0014] Further, the first locking portion is formed on any one side of the upper side, the lower side, the left side, and the right side of the fixing seat.

[0015] According to the above technical solution, the first locking portion can be arranged on the fixing seat at the upper side, the lower side, the left side, the right side, etc. The choice of the arrangement position is diverse and can be arbitrarily arranged as needed in actual implementation.

[0016] Further, the first locking portion includes a through slot penetrating the wall of the fixing seat, the through slot extends in the front-to-back direction, and a rack portion is formed on at least one side of the through slot extending in the front-to-back direction.

[0017] According to the above technical solution, the first locking part is set in the form of a through slot, so that the second locking part matched with the first locking part can be exposed from the fixed seat. For example, when the first locking part is set on the upper side of the fixed seat, the second locking part can be visually observed and touched by the person on the upper side through the through slot, so that when releasing the matching relationship between the first locking part and the second locking part, only the person's finger needs to press the locking piece downward through the through slot, and the overall process is simple and convenient. A rack part is set on the edge of the through slot, and the edge with the rack part extends in the front-to-back direction. On the one hand, such a setting enables the rack part to limit the second locking part by the way of rack meshing. The limiting structure is simple, reliable, and easy to process and use; on the other hand, it ensures that the direction in which the first locking part limits the second locking part is the front-to-back direction.

[0018] Furthermore, the number of the first locking parts is two, and the two first locking parts are respectively arranged on two opposite sides of the fixing base.

[0019] According to the above technical solution, the telescopic block can be limited by the first locking portion and the second locking portion on the locking member on both sides of the telescopic block, thereby achieving a better limiting effect on the telescopic block.

[0020] Furthermore, a mounting hole is provided on the telescopic block; the elastic member is a spring, a first end of the spring is provided in the mounting hole, and a second end of the spring abuts against the locking member.

[0021] According to the above technical solution, fixing one end of the spring into the mounting hole can better fix the spring, ensure the normal posture of the spring during operation, and avoid tilting or displacement during the movement of the locking member and the telescopic block.

[0022] Further, the locking member includes a flat plate portion and a guide block; the flat plate portion has a first side facing the fixed seat and a second side facing the telescopic block, and the first side is provided with the second locking portion; the number of the guide blocks is one or more, and the guide block is provided on the second side of the flat plate portion; the guide block is slidably connected to the telescopic block.

[0023] According to the above technical solution, the flat plate portion divides the locking member into two parts, one of which is a second locking portion for cooperating with the first locking portion on the fixed seat, and the other is a guide block for sliding connection with the telescopic block. The guide block realizes the sliding of the locking member relative to the telescopic block through the sliding connection between the guide block and the telescopic block, and enables the locking member to move in a direction close to the fixed seat or in a direction close to the telescopic block.

[0024] Furthermore, the flat plate portion also has an anti-slip limit portion, which is arranged outside the projection of the second locking portion on the first side of the flat plate portion, and the anti-slip limit portion can abut against the fixing seat to limit the locking member.

[0025] According to the above technical solution, an anti-slip limiter is provided on the flat plate portion, and the anti-slip limiter enables the flat plate portion to prevent the locking member from slipping out. Specifically, when the locking member moves toward the fixing seat, after the second locking member and the first locking member form a matching relationship, the anti-slip limiter can abut against the fixing seat, thereby limiting the locking member from continuing to move outward, and ensuring that the locking member will not continue to move outward under the elastic force of the elastic member and slip out.

[0026] Furthermore, the telescopic block is provided with a first limit block and a second limit block, the first limit block and the second limit block are arranged at intervals along the front-to-back direction, and are respectively located at the front and rear sides of the guide block.

[0027] According to the above technical solution, by setting the first limit block and the second limit block, the guide block can be limited in the front and rear directions respectively. On the one hand, when the telescopic block moves along the front and rear directions, the guide block and the locking member can be driven to move synchronously with the telescopic block. On the other hand, when the locking member moves away from or close to the telescopic block, the correct posture of the guide block can be maintained without deflection.

[0028] A vehicle comprises the trailer hook mentioned above.

[0029] Beneficial effects of the utility model:

[0030] The trailer hook and vehicle provided by the utility model have a telescopic block that can move in the front-to-back direction relative to the fixed seat, and a locking member arranged on the telescopic block can also move in the front-to-back direction synchronously with the telescopic block; and, in the process of the telescopic block moving and at any position to which it moves, the locking member can move in the direction of the fixed seat under the action of the elastic member, and the second locking portion arranged on the locking member can form a matching relationship with the first locking portion arranged on the fixed seat, based on which the first locking portion locks the second locking portion in the front-to-back direction, and further causes the telescopic block to be locked and limited in the front-to-back direction. That is, the first locking portion and the second locking portion can lock and limit the telescopic block at any position where the telescopic block moves in the front-to-back direction. At the same time, the locking member can move in the direction of the telescopic block only by being pressed by an external force, so that the second locking portion is disengaged from the matching relationship with the first locking portion, so that the telescopic block is no longer affected by the limiting effect of the first locking portion and can move freely in the front-to-back direction; and the method for releasing the locking limit is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of a trailer hook in one embodiment of the utility model;

[0032] Figure 2 for Figure 1 A schematic diagram showing the installation of a trailer hook to a rear structure of a vehicle;

[0033] Figure 3 for Figure 1 A schematic diagram of the fixing seat in the trailer hook shown;

[0034] Figure 4 for Figure 1 A schematic diagram of the telescopic block and the towing hook body in the towing hook shown;

[0035] Figure 5 for Figure 1 A schematic diagram of a locking member in a trailer hook shown in a viewing direction;

[0036] Figure 6 for Figure 1 A schematic diagram of the locking member in the trailer hook shown in another viewing direction;

[0037] Figure 7 for Figure 1 A schematic diagram of an elastic member in the trailer hook shown;

[0038] Figure 8 for Figure 1 Schematic diagram of the locking piece and telescopic block in the trailer hook shown.

[0039] in:

[0040] 10-tow hook body; 11-connecting ball head;

[0041] 20- telescopic block; 201- first limit block; 202- second limit block; 203- mounting hole;

[0042] 30- elastic member;

[0043] 40-locking member; 41-flat plate portion; 411-anti-drop limit portion; 42-second locking portion; 43-guide block; 44-mounting hole;

[0044] 50 -fixed seat; 51 -first locking portion; 52 -rack portion. DETAILED DESCRIPTION

[0045] The following will describe the implementation of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention, not for limiting the scope of protection of the present invention.

[0046] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0047] In one embodiment of the trailer hook provided by the utility model, as Figures 1 to 8As shown, the trailer hook includes a towing hook body 10, a telescopic block 20, an elastic member 30, a locking member 40 and a fixing seat 50. The towing hook body 10 is arranged on the telescopic block 20 and is located at the rear end of the telescopic block 20. The front end of the telescopic block 20 is movably connected to the fixing seat 50, and the telescopic block 20 can move in the front-to-back direction relative to the fixing seat 50. A first locking portion 51 is arranged on the fixing seat 50. The first end of the locking member 40 is movably arranged on the telescopic block 20, and the moving direction is perpendicular to the front-to-back direction. The second end of the locking member 40 is provided with a second locking portion 42, and the second locking portion 42 matches the first locking portion 51, and when the first locking portion 51 and the second locking portion 42 form a matching relationship, the second locking portion 42 is limited in the front-to-back direction by the first locking portion 51. When the first end of the locking member 40 moves relative to the telescopic block 20, the second locking portion 42 on the second end can approach the fixing seat 50 and form a matching relationship with the first locking portion 51, or move away from the fixing seat 50 and break the matching relationship with the first locking portion 51. The elastic member 30 is disposed between the locking member 40 and the telescopic block 20, and the elastic member 30 applies elastic force to the locking member 40, so that the second locking portion 42 approaches the fixing seat 50 and maintains a matching relationship with the first locking portion 51 when no external force acts on the locking member 40.

[0048] In this embodiment, the so-called front and rear directions, as well as the left, right, upper and lower directions mentioned below, are all based on the vehicle as a reference and orientation reference when the trailer hook is installed on the vehicle. Specifically, the forward direction refers to the front side direction of the vehicle, the rear direction refers to the rear side direction of the vehicle, and so on.

[0049] The fixing seat 50 is fixedly connected to the rear structure of the vehicle, and the trailer hook is fixed to the rear of the vehicle through the fixing seat 50. When the fixing seat 50 is fixed to the rear of the vehicle, the telescopic block 20 moves in the front-to-back direction relative to the fixing seat 50, so that the length of the telescopic block 20 protruding backward from the rear of the vehicle and whether it protrudes backward from the rear of the vehicle can be adjusted. When the length of the telescopic block 20 protruding backward changes, the length of the towing hook body 10 fixed on the telescopic block 20 protruding backward and whether it protrudes backward from the rear of the vehicle will also change and be adjusted accordingly.

[0050] The tow hook body 10 is provided with a connecting ball head 11, which is used to connect one end of a cable and is connected to a motorhome without power or a vehicle that has lost power and cannot travel independently and is waiting to be towed through the cable. The tow hook body 10 is provided on the telescopic block 20, and the two can be an integral structure formed in one piece or a split structure, which are connected and fixed by welding, screwing, etc.

[0051] The elastic member 30 and the locking member 40 are also arranged on the telescopic block 20, and the locking member 40 can move relative to the telescopic block 20. The direction of movement can be specifically up and down or left and right, etc., that is, the movement direction of the locking member 40 relative to the telescopic block 20 is perpendicular to the front-to-back direction. The elastic member 30 is arranged between the locking member 40 and the telescopic block 20. Generally, it is in a compressed state and can apply elastic force to the locking member 40 with the elastic potential energy accumulated by its own compression. Under the action of this elastic force, the locking member 40 is pressed toward the outside direction (that is, the direction of the fixed seat 50. Taking the relative position relationship of the fixed seat 50, the locking member 40 and the telescopic block 20 forming the outside, the middle and the inside as an example, please refer to, for example, Figure 1 The locking member 40 may also be subjected to an inward force from the outside to move the locking member 40 inward, that is, to move in the direction of the telescopic block 20, in which process the elastic force of the elastic member 30 is overcome and the elastic member 30 is compressed.

[0052] In fact, when the telescopic block 20 moves in the front-to-back direction relative to the fixing seat 50, the elastic member 30, the locking member 40, the towing hook body 10 and the telescopic block 20 have a synchronous movement state in the front-to-back direction. On this basis, the elastic member 30 and the locking member 40 are used to realize the limit function of the movement of the telescopic block 20 in the front-to-back direction, and the specific principle is as follows:

[0053] When the telescopic block 20 is in or moves to a certain position in the front-to-back direction, for example, the A1 position, since the locking member 40 and the telescopic block 20 move in the front-to-back direction synchronously, the locking member 40 is also in the B1 position corresponding to the A1 position in the front-to-back direction. At this time, the elastic member 30 applies its own elastic force to the locking member 40, and the locking member 40 moves toward the fixed seat 50 under the action of the elastic force. The movement causes the second locking portion 42 on the locking member 50 to form a matching relationship with the first locking portion 51 on the fixed seat 50. Based on the matching relationship, the second locking portion 42 is locked by the first locking portion 51. Since the telescopic block 20 and the locking member 40 have a synchronous movement relationship in the front-to-back direction, when the second locking portion 42 is locked, the telescopic block 20 is also locked. At this time, the telescopic block 20 cannot move relative to the fixed seat 50 in the front-to-back direction.

[0054] When the telescopic block 20 needs to be moved forward or backward to another A2 position, the telescopic block 20 locked in the A1 position needs to be unlocked first. The unlocking process and principle are as follows:

[0055] First, the locking member 40 is pressed, and the pressing action can be specifically implemented by manual operation; the locking member 40 is subjected to the external pressing force, and it moves toward the telescopic block 20. During this process, the elastic member 30 is squeezed and shrunk by the locking member 40, and the elastic member 30 accumulates elastic potential energy based on its own deformation; and in the process of the locking member 40 moving toward the telescopic block 20, the second locking portion 42 on the locking member 40 gradually separates from the first locking portion 51 on the fixed seat 50, and the matching relationship formed between the two is released. At this time, the first locking portion 51 can no longer limit the second locking portion 42, and accordingly, the telescopic block 20 is no longer affected by the limiting effect, and the telescopic block 20 can move relative to the fixed seat 50 along the front-to-back direction, specifically forward or forward and backward to the A2 position. During the above-mentioned movement, the pressing action on the locking member 40 needs to be maintained so that there is no continuous matching relationship between the second locking portion 42 and the first locking portion 51; alternatively, an additional locking portion may be provided, which locks the locking member 40 in this position after the locking member 40 is pressed down, thereby ensuring that there is no continuous matching relationship between the second locking portion 42 and the first locking portion 51.

[0056] In an embodiment of the trailer hook, the fixing seat 50 includes a tube structure, and the first locking portion 51 is disposed on one side of the tube structure of the fixing seat 50 .

[0057] Specifically, the tube structure included in the fixing seat 50 may be a square tube, a round tube, an elliptical tube or other structures. Figure 1 and Figure 3 The structure of the fixing seat 50 shown in the figure is a square bobbin structure.

[0058] In addition to the tube structure, the fixing seat 50 may also include a base, which is used, for example, to be bolted to the rear of the vehicle. A plurality of wall panels may also be provided in the tube structure of the fixing seat 50, and the plurality of wall panels are enclosed from different directions to form a slide groove, which is used to accommodate the telescopic block 20 and limit the telescopic block 20.

[0059] In an embodiment of the trailer hook, the first locking portion 51 is formed on any one of the upper side, the lower side, the left side, and the right side of the fixing seat 50 .

[0060] Specifically, the first locking portion 51 may be disposed on the fixing seat 50 at the upper side, the lower side, the left side, the right side, etc., and the choice of the location is diverse and may be arbitrarily set as required in actual implementation.

[0061] In an embodiment of the trailer hook, the first locking portion 51 includes a through slot penetrating the wall of the fixing seat, the through slot extending in the front-to-back direction, and a rack portion 52 is formed on at least one side of the through slot extending in the front-to-back direction.

[0062] Specifically, the first locking portion 51 is configured in the form of a through groove, so that the second locking portion 42 that cooperates with the first locking portion 51 can be exposed from the fixed seat 50. For example, when the first locking portion 51 is arranged on the upper side of the fixed seat 50, the second locking portion 42 can be visually observed and touched by a person on the upper side through the through groove. Therefore, when releasing the cooperation relationship between the first locking portion 51 and the second locking portion 42, it is only necessary for a person's fingers to press down the locking piece 40 through the through groove. The overall process is simple and convenient.

[0063] A rack portion 52 is provided on the edge of the through groove, and the edge provided with the rack portion 52 extends in the front-to-back direction. Such a setting, on the one hand, enables the rack portion 52 to limit the second locking portion 42 by means of rack meshing, and the limiting structure is simple, reliable, and easy to process and use; on the other hand, it ensures that the direction in which the first locking portion 51 limits the second locking portion 42 is the front-to-back direction.

[0064] like Figure 3 As shown, in this embodiment, rack portions 52 are provided on both sides of the through slot of the first locking portion 51 in the front-to-back direction, so that a better limiting effect on the second locking portion 42 can be achieved.

[0065] In an embodiment of the trailer hook, the number of the first locking portions 51 is two, and the two first locking portions 51 are respectively disposed at two opposite sides of the fixing seat 50 .

[0066] In this embodiment, the first locking portions 51 are respectively provided on two opposite sides of the fixing seat 50, and correspondingly, the number of the locking members 40 is also set to two, so that the telescopic block 20 can be limited on both sides of the telescopic block 20 by the first locking portion 51 and the second locking portion 42 on the locking member 40, thereby achieving a better limiting effect on the telescopic block 20.

[0067] In an embodiment of the trailer hook, a mounting hole 203 is provided on the telescopic block 20 ; the elastic member 30 is a spring, a first end of the spring is disposed in the mounting hole 203 , and a second end of the spring abuts against the locking member 40 .

[0068] In this embodiment, fixing one end of the spring into the mounting hole 203 can better fix the spring, ensure the normal posture of the spring during operation, and avoid tilting or displacement during the movement of the locking member 40 and the telescopic block 20.

[0069] Correspondingly, in order to further improve the fixing effect of the spring, a mounting hole 44 can be set at a corresponding position on the locking member 40, and the second end of the spring can be set in the mounting hole 44, so that the two ends of the spring are fixed respectively to achieve a better fixing effect.

[0070] In one embodiment of the trailer hook, the locking member 40 includes a flat plate portion 41 and a guide block 43; the flat plate portion 41 has a first side facing the fixed seat 50 and a second side facing the telescopic block 20, and the first side is provided with the second locking portion 42; the number of the guide blocks 43 is one or more, and the guide blocks 43 are provided on the second side of the flat plate portion 41; the guide blocks 43 are slidably connected to the telescopic block 20.

[0071] In this embodiment, the flat plate portion 41 divides the locking member 40 into two parts, one of which is a second locking portion 42 for cooperating with the first locking portion 51 on the fixing seat 50, and the other is a guide block 43 for sliding connection with the telescopic block 20. The guide block 43 realizes the sliding of the locking member 40 relative to the telescopic block 20 through the sliding connection between the guide block 43 and the telescopic block 20, and enables the locking member 40 to move in a direction close to the fixing seat 50 or in a direction close to the telescopic block 20.

[0072] In one embodiment of the trailer hook, the flat plate portion 41 further has an anti-slip limit portion 411, and the anti-slip limit portion 411 is arranged outside the projection of the second locking portion 42 on the first side of the flat plate portion 41, and the anti-slip limit portion 411 can abut against the fixing seat 50 to limit the locking member 40.

[0073] In this embodiment, the flat plate portion 41 is provided with an anti-slip limit portion 411, which enables the flat plate portion 41 to prevent the locking member 40 from slipping out. Specifically, when the locking member 40 moves toward the fixing seat 50, after the second locking portion 42 and the first locking portion 51 form a matching relationship, the anti-slip limit portion 411 can abut against the fixing seat 50, for example, in combination with Figure 1 and Figure 3 , Figure 5 In the structure shown, the anti-slip limit portion 411 can abut against the inner wall of the fixing seat 50 , thereby limiting the locking member 40 from continuing to move outward, thereby ensuring that the locking member 40 will not continue to move outward under the elastic force of the elastic member 30 and slip out.

[0074] In an embodiment of the trailer hook, the telescopic block 20 is provided with a first limit block 201 and a second limit block 202 , which are spaced apart in the front-rear direction and are respectively located at the front and rear sides of the guide block 43 .

[0075] In this embodiment, by providing the first limiting block 201 and the second limiting block 202, the guide block 43 can be limited in the front and rear directions respectively. On the one hand, when the telescopic block 20 moves in the front and rear directions, the guide block 43 and the locking member 40 can be driven to move synchronously with the telescopic block 20. On the other hand, when the locking member 40 moves away from or close to the telescopic block 20, the correct posture of the guide block 43 (for example, Figure 8 The vertical position is maintained in the middle) without deflection.

[0076] In summary, the trailer hook provided by the above embodiment of the utility model has a telescopic block 20 that can move in the front-to-back direction relative to the fixed seat 50, and the locking member 40 provided on the telescopic block 20 can also move in the front-to-back direction synchronously with the telescopic block 20; and, during the movement of the telescopic block 20 and at any position to which it moves, the locking member 40 can move toward the fixed seat 50 under the action of the elastic member 30, and the second locking portion 42 provided on the locking member 40 can form a matching relationship with the first locking portion 51 provided on the fixed seat 50, based on which the first locking portion 51 locks the second locking portion 42 in the front-to-back direction, and further locks the telescopic block 20 in the front-to-back direction. That is, the first locking portion 51 and the second locking portion 42 can lock the telescopic block 20 in any position at which it moves in the front-to-back direction. At the same time, the locking piece 40 can move in the direction of the telescopic block 20 by being pressed by external force, so that the second locking part 42 and the first locking part 51 are out of cooperation, so that the telescopic block 20 is no longer affected by the limiting effect of the first locking part 51 and can move freely in the front and rear directions; the method of releasing the locking limit is simple and convenient.

[0077] In an embodiment of a vehicle of the present utility model, the vehicle comprises the trailer hook described in the above embodiment.

[0078] In this embodiment, the vehicle includes the trailer hook described in the above embodiment, which has all the technical features of the above trailer hook, can of course solve the technical problems solved by the above trailer hook, and of course has the same beneficial effects as the above trailer hook, which will not be repeated.

[0079] The above embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Any equivalent substitution or modification made by a person skilled in the art based on the present invention is within the protection scope of the present invention.

Claims

1. A trailer hook, characterized in that: It includes a towing hook body, a telescopic block, an elastic member, a locking member and a fixing seat; The towing hook body is arranged on the telescopic block and is located at the rear end of the telescopic block; The front end of the telescopic block is movably connected to the fixed seat, and the telescopic block can move in the front-rear direction relative to the fixed seat; The fixing seat is provided with a first locking portion; The first end of the locking member is movably arranged on the telescopic block, and the moving direction is perpendicular to the front-to-back direction; the second end of the locking member is provided with a second locking portion, the second locking portion matches the first locking portion, and when the first locking portion and the second locking portion form a matching relationship, the second locking portion is limited in the front-to-back direction by the first locking portion; when the first end of the locking member moves relative to the telescopic block, the second locking portion on the second end can approach the fixing seat and form a matching relationship with the first locking portion, or move away from the fixing seat and break away from the matching relationship with the first locking portion; The elastic member is disposed between the locking member and the telescopic block, and applies elastic force to the locking member so that the second locking portion is close to the fixing seat and maintains a matching relationship with the first locking portion when no external force acts on the locking member.

2. The trailer hook according to claim 1, characterized in that: The fixing seat comprises a tube structure, and the first locking portion is arranged on one side of the tube structure of the fixing seat.

3. The trailer hook according to claim 2, characterized in that: The first locking portion is formed on any one of the upper side, the lower side, the left side, and the right side of the fixing seat.

4. The trailer hook according to claim 2 or 3, characterized in that: The first locking portion comprises a through slot penetrating through the wall of the fixing seat, the through slot extending in the front-to-back direction, and a rack portion is formed on at least one side of the through slot extending in the front-to-back direction.

5. The trailer hook according to claim 4, characterized in that: The number of the first locking parts is two, and the two first locking parts are respectively arranged at two opposite sides of the fixing base.

6. The trailer hook according to claim 1, characterized in that: The telescopic block is provided with a mounting hole; the elastic member is a spring, the first end of the spring is arranged in the mounting hole, and the second end of the spring abuts against the locking member.

7. The trailer hook according to claim 1, characterized in that: The locking member comprises a flat plate portion and a guide block; The flat plate portion has a first side facing the fixing seat and a second side facing the telescopic block, and the first side is provided with the second locking portion; The number of the guide blocks is one or more, and the guide blocks are arranged on the second side of the flat plate portion; the guide blocks are slidably connected to the telescopic blocks.

8. The trailer hook according to claim 7, characterized in that: The flat plate portion further comprises an anti-slip limit portion, which is arranged outside the projection of the second locking portion on the first side of the flat plate portion, and can abut against the fixing seat to limit the locking member.

9. The trailer hook according to claim 7 or 8, characterized in that: The telescopic block is provided with a first limit block and a second limit block, the first limit block and the second limit block are arranged at intervals along the front-to-back direction, and are respectively located at the front and rear sides of the guide block.

10. A vehicle, characterized in that: The vehicle comprises the trailer hook according to any one of claims 1 to 9.

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