Tow hook

Abstract

The utility model discloses a tow hook and relates to the technical field of tow equipment, the tow hook is applied to a vehicle, the vehicle comprises a hook mounting seat, the tow hook comprises a shell and a mounting assembly, and the mounting assembly is arranged in the shell and comprises a lock cylinder module and an execution module in driving connection with the lock cylinder module. The lock cylinder module can be driven to be switched between a locking state and an unlocking state so as to drive the execution module and the hook mounting seat to be in limiting connection or release limiting, and the tow hook has a mounting state and a dismounting state; in the installation state, the lock cylinder module is in the locking state, and the execution module is connected with the hook installation base in a limiting mode. And in the dismounting state, the lock cylinder module is in the unlocking state, and the execution module and the hook mounting seat are unlimited. According to the technical scheme provided by the utility model, the trailer ball hook and the ball hook mounting seat can be simply and conveniently mounted.

Description

Technical Field

[0001] The utility model relates to the technical field of trailer equipment, in particular to a trailer hook. Background Art

[0002] At present, more and more users in the domestic market have begun to use and get involved in outdoor sports, including RVs, trailers, yachts and other products. These large products need to have a trailer connection with the car during use so that the RVs, trailers, yachts, etc. can move. Generally speaking, a trailer ball hook is set at the rear of the car, and a trailer ball cover is set at the front of the RV, trailer, and yacht. The trailer ball cover can press and fix the trailer ball of the trailer ball hook in the trailer ball cover to complete the trailer connection between the RV, trailer, yacht and the car.

[0003] Currently, vehicles on the market are not equipped with a tow ball when they leave the factory, requiring users to configure one themselves. This is typically done by installing a tow ball mounting bracket at the rear of the vehicle, and then attaching the tow ball to the bracket, allowing for the convenience of replacing different tow ball styles as needed. Currently, tow ball hooks and the bracket are connected by a threaded connection, meaning the tow ball has an external thread and the bracket has an internal thread, which the tow ball screws onto. This requires a considerable amount of time to screw the tow ball into the base of the bracket during installation. Utility Model Content

[0004] The main purpose of the utility model is to provide a trailer hook, aiming to realize the simple installation of the trailer ball hook and the ball hook mounting seat.

[0005] To achieve the above-mentioned purpose, the trailer hook proposed by the present invention is applied to a vehicle, wherein the vehicle includes a hook mounting seat, and the trailer hook includes:

[0006] housing; and

[0007] An installation assembly is provided on the housing and includes a lock core module and an actuator module drivingly connected to the lock core module, wherein the lock core module can be driven to switch between a locked state and an unlocked state, so as to drive the actuator module to be limitedly connected to or released from the limit position with the hook mounting seat, and enable the trailer hook to have an installed state and a disassembled state;

[0008] Wherein, in the installed state, the lock core module is in the locked state, and the execution module is limitedly connected to the hook mounting seat; in the disassembled state, the lock core module is in the unlocked state, and the execution module is released from the limit of the hook mounting seat.

[0009] In one embodiment, the shell has a accommodating cavity, the accommodating cavity passes through the outer surface of the shell and forms an installation port, the installation port includes a first opening, the lock core module includes a lock cylinder and a lock core body movably arranged on the lock cylinder, the lock core body has a lock hole and is driven to connect to the execution module, the execution module is arranged in the accommodating cavity, and the lock cylinder is fixedly arranged at the first opening.

[0010] In one embodiment, the installation port further includes a second opening, the execution module is installed into the accommodating cavity through the second opening, and the trailer hook further includes a protective cover blocking the second opening.

[0011] In one embodiment, the trailer hook further includes at least two fixing pins spaced circumferentially along the first opening, the fixing pins penetrate into the accommodating cavity from the circumferential side surface of the shell and are limitedly connected to the lock cylinder to fix the lock cylinder to the shell.

[0012] In one embodiment, the outer end surface or the peripheral side surface of the lock cylinder is fixed to the edge of the first opening by welding.

[0013] In one embodiment, the lock core module is configured as a press-on lock core, the lock core body is accommodated in the lock cylinder in the locked state, and extends out of the outer end surface of the lock cylinder in the unlocked state; the lock core body can be driven to rotate and rise relative to the lock cylinder in the locked state to enter the unlocked state; the lock core body can be driven to move axially and descend relative to the lock cylinder in the unlocked state to enter the locked state.

[0014] In one embodiment, the lock core module also includes a push rod connected to the lock core body and located in the accommodating cavity, and the execution module includes a transmission rod. The lock core body is driven to connect to the transmission rod through the push rod to drive the execution module to be limitedly connected or released from the limit with the hook mounting seat.

[0015] In one embodiment, the outer end surface of the lock cylinder is flush with the edge of the first opening.

[0016] In one embodiment, the execution module also includes a snap-in component, the shell has a snap-in through hole connected to the accommodating cavity, and the transmission rod is connected to the snap-in component. In the installed state, the transmission rod drags the snap-in component out of the snap-in through hole and is used to be clamped in the hook mounting seat; in the disassembled state, the snap-in component is detached from the hook mounting seat and retracted into the snap-in through hole.

[0017] In one embodiment, a limiting slope is provided at one end of the transmission rod close to the clamping member, the limiting slope extends in a direction away from the lock core and tilts toward the axis of the transmission rod, and the limiting slope slides against the clamping member.

[0018] In one embodiment, the execution module further includes an elastic member, which is provided at one end of the transmission rod away from the lock core module, and one end abuts against the shell, and the other end abuts against the transmission rod. In the installed state, the elastic member has a tendency to reset the transmission rod to the disassembled state.

[0019] In one embodiment, the shell includes a cylindrical section, a transition section and a ball head section connected in sequence, the cylindrical section can be inserted into the hook mounting seat, one end of the transition section can abut against the end face of the hook mounting seat, and the other end can be connected to the ball head section, and the diameter of the ball head is larger than the diameter of the cylindrical section.

[0020] In the technical solution of this utility model, the trailer hook is fixed to the hook mounting seat by performing a locking operation on the lock core module, and the trailer hook is disassembled by performing an unlocking operation on the lock core module, so that the trailer hook can be removed from the hook mounting seat. This simplifies the installation operation of the trailer hook and helps improve the efficiency of trailer hook installation and removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0022] Figure 1 This is a structural diagram of an embodiment of a trailer hook provided by the present utility model;

[0023] Figure 2 for Figure 1 Cross-sectional view of the illustrated embodiment.

[0024] Description of Figure Numbers:

[0025] 100, housing; 11, accommodating cavity; 111, mounting opening; 112, first opening; 113, second opening; 12, protective cover; 13, snap-on hole; 14, cylindrical section; 15, transition section; 16, ball head section;

[0026] 200, installation assembly; 21, lock core module; 211, lock cylinder; 212, lock core body; 213, lock hole; 214, push rod; 22, execution module; 221, transmission rod; 222, limiting inclined plane; 223, clamping member; 224, elastic member;

[0027] 300. Fixing pin.

[0028] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0030] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0031] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0032] The utility model provides a trailer hook.

[0033] See also Figures 1 to 2 In one embodiment of the present invention, the trailer hook is applied to a vehicle, the vehicle includes a hook mounting seat, and the trailer hook includes:

[0034] housing 100; and

[0035] The mounting assembly 200 is provided in the housing 100 and includes a lock core module 21 and an actuator module 22 that drives and connects to the lock core module 21. The lock core module 21 can be driven to switch between a locked state and an unlocked state, thereby driving the actuator module 22 to limit the connection with the hook mounting seat or release the limit, thereby enabling the trailer hook to have an installed state and a disassembled state.

[0036] Among them, in the installed state, the lock core module 21 is in a locked state, and the execution module 22 is limitedly connected to the hook mounting seat; in the disassembled state, the lock core module 21 is in an unlocked state, and the execution module 22 is released from the hook mounting seat.

[0037] In the technical solution of the present utility model, the trailer hook is fixed to the hook mounting seat by performing a locking operation on the lock core module 21, and the trailer hook is disassembled by performing an unlocking operation on the lock core module 21, so that the trailer hook can be removed from the hook mounting seat. This simplifies the installation operation of the trailer hook and helps improve the efficiency of the installation and removal of the trailer hook.

[0038] In one embodiment, the housing 100 has a housing cavity 11 extending through the outer surface of the housing 100 and defining a mounting opening 111. The mounting opening 111 includes a first opening 112. The lock core module 21 includes a lock cylinder 211 and a lock core body 212 movably mounted on the lock cylinder 211. The lock core body 212 has a lock hole 213 and is drivenly connected to the actuator module 22. The actuator module 22 is mounted in the housing cavity 11, and the lock cylinder 211 is fixedly mounted in the first opening 112. In other words, the lock hole 213 is exposed on the outside of the housing 100 to facilitate key insertion. The mounting opening 111 also includes a second opening 113, through which the actuator module 22 is installed into the housing cavity 11. The trailer hook also includes a protective cover 12 that blocks the second opening 113. Taking the trailer hook's installation position after the hook mount as a reference, the first opening 112 and the second opening 113 are respectively provided at the top and bottom ends of the housing 100. That is, the lock core module 21 is provided at the top end of the housing 100, and the protective cover 12 is provided at the bottom end of the housing 100. The protective cover 12 and the lock core module 21 seal the accommodating chamber 11, thereby preventing rainwater and moisture from entering the accommodating chamber 11 when the trailer hook is in use, and thus preventing corrosion of the lock core body 212 and the actuator module 22. Furthermore, the lock core module 21 provided at the top end of the housing 100 facilitates user insertion into the keyhole 213 and application of force to the key. Furthermore, when machining the accommodating chamber 11 in the housing 100, a lathe can easily form the accommodating chamber 11 that penetrates the housing 100, and facilitate installation of the actuator module 22 and the lock core module 21 within the accommodating chamber 11. In other embodiments, the housing 100 may include a first housing 100 and a second housing 100 disposed in halves, the first housing 100 and the second housing 100 enclosing the accommodating cavity 11, and the accommodating cavity 11 having only the first opening 112. In another embodiment, the first opening 112 is provided on the circumference of the housing 100, that is, the lock core module 21 is provided on the circumference of the housing 100.

[0039] In one embodiment, the trailer hook further includes at least two fixing pins 300 spaced circumferentially around the first opening 112. The fixing pins 300 penetrate from the circumferential side of the housing 100 into the accommodating cavity 11 and are positionally engaged with the lock cylinder 211 to secure the lock cylinder 211 to the housing 100. When the lock cylinder moves relative to the lock cylinder 211, the lock cylinder 211 is secured to the housing 100, allowing the lock cylinder to move relative to the housing 100 under the influence of a key, thereby driving the actuator 22 to move. In other embodiments, the outer end surface or circumferential side of the lock cylinder 211 is welded to the edge of the first opening 112.

[0040] In one embodiment, the lock core module 21 is configured as a push-on lock core. The lock core body 212 is housed in the lock cylinder 211 in the locked state and extends out of the outer end surface of the lock cylinder 211 in the unlocked state. The lock core body 212 can be driven to rotate and rise relative to the lock cylinder 211 in the locked state to enter the unlocked state. The lock core body 212 can be driven to move axially and descend relative to the lock cylinder 211 in the unlocked state to enter the locked state. The specific structure of the push-on lock core can refer to the invention patent application number CN200610001396.7 and the invention patent application number CN200610003263.3. Push-on locks are generally used to lock doors, windows, and luggage. In the technical solution of the present utility model, the push-on lock core can transmit the torque applied by the user to the execution module 22, so that the execution module 22 can install or remove the trailer hook from the hook mounting seat. In other embodiments, the lock core module 21 may be configured as other types of lock cores, which is not limited here.

[0041] In one embodiment, the lock core module 21 further includes a push rod 214 connected to the lock core body 212 and positioned within the accommodating chamber 11. The actuator module 22 includes a transmission rod 221. The lock core body 212 is driven by the push rod 214 to connect to the transmission rod 221, thereby driving the actuator module 22 to engage or release the engagement with the hook mounting seat. That is, in the unlocked state, a user presses the lock core body 212, causing the lock core body 212 to move downward, allowing the push rod 214 to push the transmission rod 221 downward, thereby changing the lock core module 21 to the locked state and driving the actuator module 22 to engage the hook mounting seat. In the locked state, a user inserts a key into the keyhole 213 and rotates the knob to release the restraint between the lock core body 212 and the lock cylinder 211. The lock core body 212 can move upward relative to the lock cylinder 211, and the push rod 214 no longer exerts downward pressure on the transmission rod 221. The lock core module 21 is then unlocked, causing the actuator module 22 to be disassembled. In other embodiments, the user may press the lock core body 212, and the lock core body 212 moves downward, so that the push rod 214 can push the transmission rod 221 to rotate, and the torque is transmitted through the rotation of the transmission rod 221 to change the state of the trailer hook.

[0042] In one embodiment, the outer end surface of the lock cylinder 211 is flush with the edge of the first opening 112. This prevents deformation of the lock cylinder 211 due to collision with the outside world. Furthermore, when the trailer hook is installed on the hook mounting base, the lock cylinder module 21 is in the locked state, and the lock cylinder body 212 does not extend out of the housing 100. In this state, the housing 100 can protect the structure of the lock cylinder body 212. In other embodiments, the outer end surface of the lock cylinder 211 may not be flush with the edge of the first opening 112. Specifically, the outer end surface of the lock cylinder 211 is located below the edge of the first opening 112.

[0043] In one embodiment, the actuator module 22 further includes a clamping member 223. The housing 100 has a clamping hole 13 communicating with the accommodating chamber 11. The transmission rod 221 is connected to the clamping member 223. In the installed state, the transmission rod pulls the clamping member 223 out of the clamping hole 13 and is engaged with the hook mounting seat. In the disassembled state, the clamping member 223 is disengaged from the hook mounting seat and retracted into the clamping hole 13. Specifically, when installing the trailer hook on the hook mounting seat, the trailer hook is inserted into the ball hitch mounting seat and the clamping member 223 is guided into the clamping hole 13 to complete the installation. When removing the trailer hook from the ball hitch mounting seat, the trailer hook can be directly removed from the ball hitch mounting seat by removing the abutting pressure on the clamping member 223. This simplifies the operation and helps reduce the time required to install a trailer ball hitch. Specifically, a limiting slope 222 is provided at one end of the transmission rod 221 near the engaging member 223. The limiting slope 222 extends away from the lock cylinder and is inclined toward the axis of the transmission rod 221. The limiting slope 222 slidably abuts the engaging member 223. In other words, when the transmission rod 221 moves downward, the limiting member rolls on the limiting slope 222 to move out of the engaging hole 13, allowing a portion of the limiting member to extend out of the engaging hole 13 and engage with the hook mounting seat. When the push rod 214 releases the downward pressure on the transmission rod 221, the engaging member 223 can move back into the accommodating cavity 11. In other embodiments, the hook mounting seat includes a connected avoidance hole and a snap-in hole, the shell 100 has an elongated hole arranged relative to the snap-in member 223, and the elongated hole extends along the circumference of the shell 100, and the snap-in member 223 can move along the extension direction of the elongated hole under the drive of the transmission member. During installation, the snap-in member 223 moves downward in the avoidance hole. When the trailer hook moves to the bottom, the transmission rod 221 drives the limit member to move, so that the trailer hook changes between the installed state and the disassembled state.

[0044] In one embodiment, the actuator module 22 further comprises an elastic member 224, which is disposed at the end of the transmission rod 221 away from the lock cylinder module 21. One end of the elastic member 224 abuts the housing 100, i.e., the protective cover 12, and the other end abuts the transmission rod 221. In the installed state, the elastic member 224 has a tendency to return the transmission rod 221 to the disassembled state. Specifically, when the push rod 214 moves upward, the transmission rod 221, driven by the elastic member 224, moves upward along with the push rod 214. The engaging member 223 slides relative to the limiting inclined surface 222 under its own weight, allowing the engaging member 223 to move back into the accommodating cavity 11. In other embodiments, the elastic member 224 is further configured as a spring. Alternatively, the elastic member 224 may be configured as a spring.

[0045] In one embodiment, the housing 100 includes a cylindrical section 14, a transition section 15, and a ball section 16, which are connected in sequence. The cylindrical section 14 can be inserted into the hook mounting seat. One end of the transition section 15 can abut the end surface of the hook mounting seat, and the other end can be connected to the ball section 16. The diameter of the ball section is larger than that of the cylindrical section 14. In other embodiments, the housing 100 can also have a square structure or other custom-shaped structure, which is not limited here.

[0046] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A trailer hook, applied to a vehicle, characterized in that: The vehicle includes a hook mount, the trailer hook including: housing; and An installation assembly is provided on the housing and includes a lock core module and an actuator module drivingly connected to the lock core module, wherein the lock core module can be driven to switch between a locked state and an unlocked state, so as to drive the actuator module to be limitedly connected to or released from the limit position with the hook mounting seat, and enable the trailer hook to have an installed state and a disassembled state; Wherein, in the installed state, the lock core module is in the locked state, and the execution module is limitedly connected to the hook mounting seat; in the disassembled state, the lock core module is in the unlocked state, and the execution module is released from the limit of the hook mounting seat.

2. The trailer hook according to claim 1, wherein: The shell has a accommodating cavity, which passes through the outer surface of the shell and forms an installation port, and the installation port includes a first opening. The lock core module includes a lock cylinder and a lock core body movably arranged on the lock cylinder. The lock core body has a lock hole and is driven to connect to the execution module. The execution module is arranged in the accommodating cavity, and the lock cylinder is fixedly arranged at the first opening.

3. The trailer hook according to claim 2, wherein: The installation port further includes a second opening, and the execution module is installed into the accommodating cavity through the second opening. The trailer hook further includes a protective cover blocking the second opening.

4. The trailer hook according to claim 2, wherein: The trailer hook further includes at least two fixing pins spaced apart along the circumference of the first opening, the fixing pins penetrating from the circumferential side of the housing into the accommodating cavity and being positionally connected with the lock cylinder to fix the lock cylinder to the housing; Alternatively, the outer end surface or the peripheral side surface of the lock cylinder is fixed to the edge of the first opening by welding.

5. The trailer hook according to claim 2, wherein: The lock core module is configured as a press-on lock core, the lock core body is accommodated in the lock cylinder in the locked state, and extends out of the outer end surface of the lock cylinder in the unlocked state; the lock core body can be driven to rotate and rise relative to the lock cylinder in the locked state to enter the unlocked state; the lock core body can be driven to move axially and descend relative to the lock cylinder in the unlocked state to enter the locked state.

6. The trailer hook according to claim 5, wherein: The lock core module further includes a push rod connected to the lock core body and located in the accommodating cavity, and the execution module includes a transmission rod. The lock core body is driven to connect to the transmission rod through the push rod to drive the execution module to be limitedly connected to the hook mounting seat or to release the limit; And / or, the outer end surface of the lock cylinder is flush with the edge of the first opening.

7. The trailer hook according to claim 6, wherein: The execution module also includes a clamping part, the shell has a clamping through hole connected to the accommodating cavity, the transmission rod is connected to the clamping part, in the installed state, the transmission rod drags the clamping part out of the clamping through hole and is used to be clamped on the hook mounting seat; in the disassembled state, the clamping part is detached from the hook mounting seat and retracted into the clamping through hole.

8. The trailer hook according to claim 7, wherein: A limiting slope is provided on one end of the transmission rod close to the clamping member. The limiting slope extends in a direction away from the lock core and tilts toward the axis of the transmission rod. The limiting slope slides against the clamping member.

9. The trailer hook according to claim 7, wherein: The execution module also includes an elastic member, which is arranged at one end of the transmission rod away from the lock core module, and one end abuts the shell, and the other end abuts the transmission rod. In the installed state, the elastic member has a tendency to reset the transmission rod to the disassembled state.

10. The trailer hook according to claim 1, wherein: The shell includes a cylindrical section, a transition section and a ball head section connected in sequence. The cylindrical section can be inserted into the hook mounting seat. One end of the transition section can abut against the end face of the hook mounting seat, and the other end can be connected to the ball head section. The diameter of the ball head is larger than the diameter of the cylindrical section.

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