A locking unit, adjusting mechanism and limiting assembly

Abstract

The utility model discloses a lock unit, adjusting mechanism and spacing sub -assembly relates to the technical field of automobile parts to at least solve the existing pickup truck tail box cover and the connecting assembly of car body insufficient constraint to multidirectional displacement, resulting in the problem that the tail box cover is easy to displace or deflect in the vehicle driving, including lock tongue, be configured as limit the relative displacement of pickup truck tail box with tail box cover in third direction, adjuster, with Lockable connection with lock tongue, be configured as change the contact range of lock tongue with pickup truck tail box, fender, be configured as limit the relative displacement of pickup truck tail box with tail box cover in second direction or first direction. Through the combination design of lock tongue limit third direction displacement and fender limit second direction displacement, realize the double restraint of tail box cover in transverse and longitudinal, cooperate with the locking structure of vertical direction, form three -dimensional spacing system, effectively prevent the displacement or deflection of cover body in the vehicle driving.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to a locking unit, adjusting mechanism and limiting component. Background Technology

[0002] Pickup trucks, as multi-functional vehicles combining passenger comfort and cargo-carrying practicality, are widely used in commercial transportation, off-road adventures, and daily commuting. To meet the needs of cargo protection, privacy, and adaptability to harsh environments, existing pickup trucks are generally equipped with a tailgate (such as a hard cover, soft cover, or folding cover), connected to the tailgate via a mechanical locking mechanism. However, the existing tailgate-to-vehicle connection components have the following drawbacks:

[0003] Insufficient locking stability: Traditional lock tongues are mostly fixed structures, and the contact area with the tailgate is not adjustable. Under conditions of vehicle bumps, off-road driving, or heavy load, stress concentration can easily cause the lock to loosen, leading to longitudinal or lateral displacement of the tailgate cover.

[0004] Lack of multi-directional limiting: Existing designs mostly only restrict displacement in a single direction (such as the vertical direction), lacking coordinated constraints on longitudinal (vehicle driving direction) and lateral (vehicle width direction). In extreme weather (such as strong winds and heavy rain) or emergency braking, the tailgate is prone to deflection or lifting, resulting in sealing failure and exposure, moisture or damage to internal items.

[0005] Adaptability limitations: Different loads, road conditions, or tailgate cover types (hard cover / soft cover) have significantly different requirements for locking force. Fixed structure limit components are difficult to adapt to diverse usage scenarios, resulting in problems such as inconvenient adjustment or excessive constraint leading to component wear. Summary of the Invention

[0006] Embodiments of this utility model provide a locking unit, an adjusting mechanism, and a limiting component.

[0007] This aims to at least address the problem that the existing pickup truck tailgate and body connection components do not adequately constrain multi-directional displacement, causing the tailgate to easily shift or deflect during vehicle operation.

[0008] This solves the problem that the traditional limit component has a fixed contact range of the lock tongue, which cannot adapt to different loads, road conditions or tailgate types, resulting in poor locking stability or component wear.

[0009] This addresses the issue of the tailgate failing to seal the vehicle body under extreme conditions, leading to the exposure and damage of internal items.

[0010] To achieve the above objectives, the embodiments of this utility model adopt the following technical solutions:

[0011] A limiting component is applied between a pickup truck tailgate and a tailgate cover, the tailgate cover being configurable as a folded, flat, or rolled-up state. The limiting component constrains the tailgate cover within the pickup truck tailgate and covers all or part of the open portion of the pickup truck tailgate. The limiting component includes:

[0012] The locking tongue is configured to limit relative displacement between the pickup truck bed and the bed cover in a third direction;

[0013] An adjuster, operably connected to the latch, is configured to change the contact range between the latch and the pickup truck bed;

[0014] The stop is configured to limit relative displacement between the pickup truck bed and the bed cover in a second or first direction.

[0015] In some possible embodiments, the latch is movably disposed on the bottom surface of the tailgate, which faces the surface of the pickup truck tailgate, and is extendable or retractable in a first direction, and has a locking surface;

[0016] The pickup truck's tail box has a card-reading surface in the extending direction of the first direction;

[0017] When the card surface abuts against the card-to-be-carded surface, the tailgate and the pickup truck tailgate are in a locked state.

[0018] In some possible embodiments, a reset mechanism is also included, configured to drive the latch back to its initial position if the latch loses external force.

[0019] In some possible embodiments, the reset mechanism includes:

[0020] The housing has a first groove and a second groove along its own length, and the two are separated by a partition.

[0021] A pull rod has a head and a rod portion. The head is located in and slides in the second slide groove. One end of the rod portion is connected to the head, and the other end extends through the partition into the first slide groove and is fitted with a spring. The rod portion passes through the spring and is connected to the locking tongue by a latch, and the locking tongue slides in the first slide groove.

[0022] When a pulling force is applied to the pull rod, the pull rod causes the locking tongue to slide along the first groove and compress the spring. The spring undergoes elastic deformation. After the pulling force is lost, the locking tongue returns to its initial position under the elastic reaction force of the spring.

[0023] In some possible embodiments, the adjuster is configured to change the contact range between the latching surface of the latch and the locking surface of the pickup truck bed.

[0024] In some possible embodiments, the regulator includes:

[0025] The main body has a through hole on its end face along a first direction, and a transition groove on its side along a third direction, dividing one side of the main body into two relatively independent constraint parts. Each constraint part has a constraint hole on its side along a third direction, and each constraint hole communicates with the through hole, forming a "T"-shaped channel.

[0026] A traction component, one end of which is connected to a locking tongue, and the other end passes through a through hole and is arranged to intersect with a constraint hole in a third-party upward direction;

[0027] A locking member is screwed into the constraint hole and abuts against the traction member to fix the traction member.

[0028] In some possible embodiments, the stop includes:

[0029] A stop block is detachably mounted on the surface of the tailgate facing the pickup truck tailgate;

[0030] Limiting grooves are provided on guide rails or limiting components on guide rails along the length of the pickup truck tail box, or fasteners fixed to the side of the pickup truck tail box, or on the waiting surface of the pickup truck tail box along the length of the pickup truck tail box.

[0031] When the tailgate is in a flat position, the stop block extends into the limiting groove to limit the displacement of the tailgate in a second direction or to limit the displacement of the tailgate in a first direction.

[0032] In some possible embodiments, the block has a "T" shaped cross section, a first stop surface and a second stop surface opposite to the first stop surface in a second direction; a fifth stop surface is provided in the side direction along its own length towards the pickup truck tail box in the first direction;

[0033] The limiting groove is strip-shaped and has an opening on one side. The inner wall of the limiting groove has a third stop and an opposite fourth stop in the second direction. The third stop and the fourth stop form a limiting space. A sixth stop is provided on the side away from the opening and opposite to the opening.

[0034] The limiting space restricts the displacement of the first and second stop surfaces in the second direction; the sixth stop surface restricts the displacement of the fifth stop surface in the first direction.

[0035] In some possible embodiments, the tailgate is pivotally connected by a plurality of rigid cover assemblies, each of the rigid cover assemblies consisting of a rigid sheet and a plurality of borders surrounding the rigid sheet;

[0036] The pickup truck's tailgate has detachable rails installed on both sides along its length.

[0037] In some possible embodiments, the tailgate is composed of a soft cover and a frame, the frame being formed by multiple frames pivotally connected, the soft cover having a bent state, a flat state, or a rolled-up state, and the soft cover covering the frame composed of the multiple frames;

[0038] The pickup truck's tailgate has detachable rails installed on both sides along its length.

[0039] Another embodiment of this utility model provides an adjustment mechanism applied between a pickup truck tailgate and a tailgate cover. The pickup truck tailgate and the tailgate cover have a locked state and an unlocked state. The adjustment mechanism switches between the locked and unlocked states and changes the contact range between the tailgate cover and the pickup truck tailgate, including:

[0040] The locking tongue is configured to limit relative displacement between the pickup truck bed and the bed cover in a third direction;

[0041] An adjuster, operably connected to the latch, is configured to change the contact range between the latch and the pickup truck bed.

[0042] In some possible embodiments, the latch is movably disposed on the bottom surface of the tailgate, which faces the surface of the pickup truck tailgate, and is extendable or retractable in a first direction, and has a locking surface;

[0043] The pickup truck's tail box has a card-reading surface in the extending direction of the first direction;

[0044] When the card surface abuts against the card-to-be-carded surface, the tailgate and the pickup truck tailgate are in a locked state.

[0045] In some possible embodiments, a reset mechanism is also included, configured to drive the latch back to its initial position if the latch loses external force.

[0046] In some possible embodiments, the reset mechanism includes:

[0047] The housing has a first groove and a second groove along its own length, and the two are separated by a partition.

[0048] A pull rod has a head and a rod portion. The head is located in and slides in the second slide groove. One end of the rod portion is connected to the head, and the other end extends through the partition into the first slide groove and is fitted with a spring. The rod portion passes through the spring and is connected to the locking tongue by a latch, and the locking tongue slides in the first slide groove.

[0049] When a pulling force is applied to the pull rod, the pull rod causes the locking tongue to slide along the first groove and compress the spring. The spring undergoes elastic deformation. After the pulling force is lost, the locking tongue returns to its initial position under the elastic reaction force of the spring.

[0050] In some possible embodiments, the adjuster is configured to change the contact range between the latching surface of the latch and the locking surface of the pickup truck bed.

[0051] In some possible embodiments, the regulator includes:

[0052] The main body has a through hole on its end face along a first direction, and a transition groove on its side along a third direction, dividing one side of the main body into two relatively independent constraint parts. Each constraint part has a constraint hole on its side along a third direction, and each constraint hole communicates with the through hole, forming a "T"-shaped channel.

[0053] A traction component, one end of which is connected to a locking tongue, and the other end passes through a through hole and is arranged to intersect with a constraint hole in a third-party upward direction;

[0054] A locking member is screwed into the constraint hole and abuts against the traction member to fix the traction member.

[0055] In some possible embodiments, the tailgate is pivotally connected by a plurality of rigid cover assemblies, each of the rigid cover assemblies consisting of a rigid sheet and a plurality of borders surrounding the rigid sheet;

[0056] The pickup truck's tailgate has detachable rails installed on both sides along its length.

[0057] In some possible embodiments, the tailgate is composed of a soft cover and a frame, the frame being formed by multiple frames pivotally connected, the soft cover having a bent state, a flat state, or a rolled-up state, and the soft cover covering the frame composed of the multiple frames;

[0058] The pickup truck's tailgate has detachable rails installed on both sides along its length.

[0059] Another embodiment of this utility model provides a locking unit applied between a pickup truck bed and a bed cover. The locking unit is used to limit the displacement of the bed cover in a second and third direction, so that the bed cover remains relatively stationary with respect to the pickup truck bed in a flat position. The locking unit includes:

[0060] In some possible embodiments, the latch is configured to limit relative displacement between the pickup truck bed and the tailgate in a third direction;

[0061] The stop is configured to limit relative displacement between the pickup truck bed and the bed cover in a second or first direction.

[0062] In some possible embodiments, the latch is movably disposed on the surface of the tailgate facing the pickup truck tailgate and is extendable or retractable in a first direction, and has a locking surface;

[0063] The pickup truck's tail box has a card-reading surface in the extending direction of the first direction;

[0064] When the card surface abuts against the card-to-be-carded surface, the tailgate and the pickup truck tailgate are in a locked state.

[0065] In some possible embodiments, a reset mechanism is also included, configured to drive the latch back to its initial position if the latch loses external force.

[0066] In some possible embodiments, the reset mechanism includes:

[0067] The housing has a first groove and a second groove along its own length, and the two are separated by a partition.

[0068] A pull rod has a head and a rod portion. The head is located in and slides in the second slide groove. One end of the rod portion is connected to the head, and the other end extends through the partition into the first slide groove and is fitted with a spring. The rod portion passes through the spring and is connected to the locking tongue by a latch, and the locking tongue slides in the first slide groove.

[0069] When a pulling force is applied to the pull rod, the pull rod causes the locking tongue to slide along the first groove and compress the spring. The spring undergoes elastic deformation. After the pulling force is lost, the locking tongue returns to its initial position under the elastic reaction force of the spring.

[0070] In some possible embodiments, the stop includes:

[0071] A stop block is detachably mounted on the surface of the tailgate facing the pickup truck tailgate;

[0072] Limiting grooves are provided on guide rails or limiting components on guide rails along the length of the pickup truck tail box, or fasteners fixed to the side of the pickup truck tail box, or on the waiting surface of the pickup truck tail box along the length of the pickup truck tail box.

[0073] When the tailgate is in a flat position, the stop block extends into the limiting groove to limit the displacement of the tailgate in a second direction or to limit the displacement of the tailgate in a first direction.

[0074] In some possible embodiments, the block has a "T" shaped cross section, has a first blocking surface and a second blocking surface opposite to the first blocking surface in a second direction, and has a fifth blocking surface in the side direction along its own length direction facing the pickup truck tail box in the first direction;

[0075] The limiting groove is strip-shaped and has an opening on one side. The inner wall of the limiting groove has a third stop and an opposite fourth stop in the second direction. The third stop and the fourth stop form a limiting space. A sixth stop is provided on the side away from the opening and opposite to the opening.

[0076] The limiting space restricts the displacement of the first and second stop surfaces in the second direction; the sixth stop surface restricts the displacement of the fifth stop surface in the first direction.

[0077] In some possible embodiments, the tailgate is pivotally connected by a plurality of rigid cover assemblies, each of the rigid cover assemblies consisting of a rigid sheet and a plurality of borders surrounding the rigid sheet;

[0078] The pickup truck's tailgate has detachable rails installed on both sides along its length.

[0079] In some possible embodiments, the tailgate is composed of a soft cover and a frame, the frame being formed by multiple frames pivotally connected, the soft cover having a bent state, a flat state, or a rolled-up state, and the soft cover covering the frame composed of the multiple frames;

[0080] The pickup truck's tailgate has detachable rails installed on both sides along its length.

[0081] The beneficial effects of this utility model are as follows: The locking unit, adjusting mechanism and limiting component provided in the embodiment of this utility model provide multi-directional coordinated limiting and improve connection stability: Through the combination design of locking tongue limiting third-direction displacement and stop limiting second-direction displacement, the tailgate is constrained in both the lateral and longitudinal directions. Combined with the vertical locking structure, a three-dimensional limiting system is formed, which effectively prevents the cover from shifting or deflecting during vehicle operation.

[0082] Adjustable contact range to adapt to diverse working conditions: The adjuster can flexibly adjust the contact area between the lock tongue and the vehicle body through the cooperation of the traction component and the locking component, adapting to different loads, tailgate types (hard cover / soft cover) and road conditions, avoiding stress concentration that could cause component wear or loosening of the lock.

[0083] Enhanced sealing and protection to ensure the safety of items: The reset mechanism ensures that the latch automatically returns to the initial locking position after the external force is removed, maintaining a continuous and stable sealing pressure; combined with the "T"-shaped fit of the stop and the limit groove, it effectively prevents the tailgate from being lifted or leaking through gaps in extreme weather (heavy rain, strong wind) or emergency braking, protecting the internal items from damage. Attached Figure Description

[0084] Figure 1 A first-view structural diagram of a soft-cover tailgate;

[0085] Figure 2 A second-view structural diagram of a soft-cover tailgate;

[0086] Figure 3 A first-view structural diagram of a hard-cover tailgate;

[0087] Figure 4 A second-view structural diagram of a hard-cover tailgate;

[0088] Figure 5 This is a magnified view of a portion of the tailgate.

[0089] Figure 6 This is a schematic diagram of the explosion of the reset mechanism;

[0090] Figure 7 This is an exploded view of the regulator structure.

[0091] Figure 8 This is a schematic diagram of the first embodiment of the limiting groove;

[0092] Figure 9 for Figure 8 Enlarged view of point A in the middle;

[0093] Figure 10 This is a schematic diagram of the second embodiment of the limiting groove;

[0094] Figure 11 for Figure 10 Enlarged view at point B in the middle;

[0095] Figure 12 This is a schematic diagram of the third embodiment of the limiting groove;

[0096] Figure 13 for Figure 12 Enlarged view at point C;

[0097] In the picture:

[0098] 1. Hard cover plate assembly;

[0099] 2. Guide rail;

[0100] 3. Frame;

[0101] 4. Soft cover plate;

[0102] 5. Locking tongue; 501. Snap-on surface; 502. Housing; 503. First slide groove; 504. Second slide groove; 505. Partition; 506. Pull rod; 507. Spring; 508. Slot; 509. Snap-on pin; 510. Annular groove.

[0103] 6. Limiting components;

[0104] 7. Adjuster; 701. Main body; 702. Through hole; 703. Transition groove; 704. Constraint part; 705. Constraint hole; 706. Traction component; 707. Locking component.

[0105] 8. Stop;

[0106] 9. Limiting groove;

[0107] 10. Card face to be displayed;

[0108] 11. Bar frame;

[0109] 12. Groove;

[0110] 13. Fasteners;

[0111] 14. Side of the pickup truck's tailgate; Detailed Implementation

[0112] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0113] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0114] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0115] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0116] In this disclosure, unless otherwise stated, directional terms such as "axial," "circumferential," and "radial" generally refer to those defined relative to the axis of rotation of the rotor in the drive motor, and "inner" and "outer" refer to the inner and outer contours of the corresponding components. The terms "first," "second," etc., are used to distinguish different components and do not imply sequentiality or importance. Furthermore, in the following description, when referring to the accompanying drawings, unless otherwise explained, the same reference numerals in different drawings denote the same or similar elements.

[0117] To describe it more accurately, we define the width direction of the pickup truck as the first direction D1, the length direction of the pickup truck as the second direction D2, and the height direction of the pickup truck as the third direction D3; the first direction D1, the second direction D2, and the third direction D3 are perpendicular to each other;

[0118] Please see Figure 1 and Figure 2 , Figure 1 A first-view structural diagram of a soft-cover tailgate; Figure 2 A second-view structural diagram of the soft-cover tailgate; the tailgate consists of a soft cover plate 4 and a frame 3. The frame 3 is formed by multiple frames pivotally connected. The soft cover plate 4 has a bent state, a flat state, or a rolled-up state. The soft cover plate 4 covers the frame 3 composed of multiple frames. The pickup truck tailgate has guide rails 2 detachably installed on both sides of its own length direction. Specifically, the guide rails 2 are connected to the pickup truck tailgate by fixing clips.

[0119] It should be noted that the pickup truck tail box has a pickup truck tail box side 14, and the guide rail 2 is connected to the pickup truck tail box side 14 by a fixing clip.

[0120] Please see Figure 3 and Figure 4 , Figure 3 A first-view structural diagram of a hard-cover tailgate; Figure 4 The diagram shows a second-view structural diagram of a hard-cover tailgate. The tailgate is formed by pivotally connecting multiple hard cover plate assemblies 1. Each hard cover plate assembly 1 consists of a hard plate and multiple borders surrounding the hard plate. The pickup truck tailgate has guide rails 2 detachably installed on both sides along its length. Specifically, the guide rails 2 are connected to the pickup truck tailgate by fixing clips.

[0121] It should be noted that the pickup truck tail box has a pickup truck tail box side 14, and the guide rail 2 is connected to the pickup truck tail box side 14 by a fixing clip.

[0122] The aforementioned tailgate can be configured to be folded, laid flat, or rolled up. The tailgate is constrained to the pickup truck tailgate by a limiting component and covers all or part of the open portion of the pickup truck tailgate. The limiting component includes a latch 5, an adjuster 7, and a stop.

[0123] The locking tongue 5 is configured to limit relative displacement between the pickup truck tailgate and the tailgate cover in a third direction D3; the adjuster 7 is operably connected to the locking tongue and is configured to change the contact range between the locking tongue 5 and the pickup truck tailgate; the stop is configured to limit relative displacement between the pickup truck tailgate and the tailgate cover in a second direction D2 or a first direction D1.

[0124] Please see Figure 5 , Figure 5 This is a partially enlarged schematic diagram of the tailgate; the positions of the adjuster 7 and the latch 5 are enlarged to fully and clearly show the specific example structure. The latch 5 is movably disposed on the bottom surface of the tailgate, which faces the surface of the pickup truck tailgate and can extend or retract along the first direction D1, and has a locking surface 501; the pickup truck tailgate has a locking surface 10 in the extension direction of the first direction D1; wherein, when the locking surface 501 abuts against the locking surface 10, the tailgate and the pickup truck tailgate are in a locked state.

[0125] Please see Figure 6 , Figure 6 The diagram below shows an exploded view of the reset mechanism. The reset mechanism is installed in the groove 12 of the strip frame 11 and is configured to drive the latch 5 back to its initial position when the latch 5 loses external force.

[0126] For example, the reset mechanism includes a housing 502 and a pull rod 506. The housing 502 has a first groove 503 and a second groove 504 along its length, and the two are separated by a partition 505. The pull rod 506 has a head and a rod. The head is located in the second groove 504 and slides in cooperation with the second groove 504. One end of the rod is connected to the head, and the other end extends through the partition 505 into the first groove 503 and is fitted with a spring 507. The rod passes through the spring 507 and is connected to the locking tongue 5 by a latch 509. The locking tongue 5 slides in cooperation with the first groove 503. When a pulling force is applied to the pull rod 506, the pull rod 506 drives the locking tongue 5 to slide along the first groove 503 and squeeze the spring 507. The spring 507 undergoes elastic deformation. After the pulling force is lost, the locking tongue 5 returns to its initial position under the elastic reaction force of the spring 507.

[0127] More specifically, the following is an example of the specific method of connecting the latch 509 and the bolt 5. An annular groove 510 is made at the end of the rod away from the head, and a slot 508 is made at the corresponding position of the bolt 5. The latch 509 is inserted into the slot 508, and the end of the latch 509 is inserted into the annular groove 510, so that the bolt 5 and the pull rod 506 are engaged together and move synchronously.

[0128] Please see Figure 7 , Figure 7This is an exploded view of the regulator structure; the regulator 7 is configured to change the contact range between the locking surface 501 of the latch 5 and the waiting locking surface 10 of the pickup truck trunk.

[0129] The regulator 7 mentioned above will be explained by example below. Specifically, the regulator 7 includes a main body 701, a traction member 706, and a locking member 707. The main body 701 has a through hole 702 on its end face along the first direction D1, and a transition groove 703 on its side along the third direction D3, which divides one side of the main body 701 into two relatively independent constraint parts 704. A constraint hole 705 is formed on the side of each constraint part 704 along the third direction D3, and each constraint hole 705 communicates with the through hole 702 to form a "T" shaped channel. One end of the traction member 706 is connected to the locking tongue 5, and the other end passes through the through hole 702 and is intersected with the constraint hole 705 in the third direction D3. The locking member 707 is screwed into the constraint hole 705 and abuts against the traction member 706 to fix the traction member 706.

[0130] In some possible embodiments, the stop includes a stop block 8 and a limiting groove 9. The stop block 8 is detachably disposed on the surface of the tailgate facing the pickup truck tailgate. The limiting groove 9 is formed on the guide rails 2 or limiting members 6 on the guide rails along the length of the pickup truck tailgate, or on the fasteners 13 fixed to the side of the pickup truck tailgate, or on the waiting surfaces 10 of the pickup truck tailgate along the length of the pickup truck tailgate. When the tailgate is in a flat state, the stop block 8 extends into the limiting groove 9 to limit the displacement of the tailgate in the second direction D2, or to limit the displacement of the tailgate in the first direction D1. The cross-section of the stop block 8 is "T". The device is shaped like a "", and has a first stop surface and a second stop surface opposite to the first stop surface in the second direction D2; a fifth stop surface is provided on the side of the device along its own length direction in the first direction D1 towards the pickup truck tail box; the limiting groove 9 is strip-shaped and has an opening on one side, and the inner wall of the limiting groove 9 has a third stop surface and an opposite fourth stop surface in the second direction D2, and the third stop surface and the fourth stop surface enclose a limiting space; a sixth stop surface is provided on the side away from the opening and opposite to the opening; the limiting space restricts the displacement of the first stop surface and the second stop surface in the second direction D2; the sixth stop surface restricts the displacement of the fifth stop surface in the first direction D1.

[0131] The above lists four possible implementations of the limiting groove 9. First, the limiting groove 9 is formed on the guide rails 2 on both sides of the pickup truck tail box along its own length direction. Second, the limiting groove 9 is formed on the limiting member 6 on the guide rail. Third, the limiting groove 9 is formed on the fastener 13 fixed to the side of the pickup truck tail box. Fourth, the locking surface 10 is formed on both sides of the pickup truck tail box along its own length direction, and the locking surface 10 is located on the bottom surface of the side 14 of the pickup truck tail box. The following are specific examples of the possible implementations mentioned above.

[0132] Please see Figure 8 and Figure 9 , Figure 8 This is a schematic diagram of the first embodiment of the limiting groove; Figure 9 for Figure 8 Enlarged view at point A; The limiting groove 9 is opened on the limiting part 6 on the guide rail and cooperates with the stop block 8 to limit or constrain the displacement of the tailgate in the second direction D2.

[0133] Please see Figure 10 and Figure 11 , Figure 10 This is a schematic diagram of the second embodiment of the limiting groove; Figure 11 for Figure 10 Enlarged view at point B; The limiting groove 9 is opened on the guide rail 2 on both sides of the tail box of the pickup truck along its own length direction, and cooperates with the stop block 8 to limit or constrain the displacement of the tail box cover in the second direction D2.

[0134] Please see Figure 12 and Figure 13 , Figure 12 This is a schematic diagram of the third embodiment of the limiting groove; Figure 13 for Figure 12 Enlarged view at point C; the limiting groove 9 is formed on the fastener 13 fixed to the side of the pickup truck's tail box and cooperates with the stop block 8 to limit or constrain the displacement of the tail box cover in the second direction D2.

[0135] Another embodiment of this utility model provides an adjustment mechanism applied between the pickup truck tailgate and the tailgate cover. The pickup truck tailgate and the tailgate cover have a locked state and an unlocked state. The locked state and the unlocked state are switched by the adjustment mechanism, and the contact range between the tailgate cover and the pickup truck tailgate is changed, including:

[0136] Locking tongue 5 is configured to limit relative displacement between the pickup truck bed and the tailgate in the third direction D3;

[0137] Adjuster 7, operably connected to the latch, is configured to change the contact range between the latch 5 and the pickup truck bed.

[0138] Another embodiment of this utility model also provides a locking unit applied between the tailgate and the tailgate cover of a pickup truck. The locking unit is used to limit the displacement of the tailgate cover in a second direction D2 and a third direction D3, so that the tailgate cover remains relatively stationary with respect to the pickup truck tailgate in a flat state, including:

[0139] Locking tongue 5 is configured to limit relative displacement between the pickup truck bed and the tailgate in the third direction D3;

[0140] The stop is configured to limit relative displacement between the pickup truck bed and the bed cover in the second direction D2 or the first direction D1.

[0141] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0142] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A limiting component applied between a pickup truck tailgate and a tailgate cover, the tailgate cover being configurable as a folded state, a flat state, or a rolled-up state, the limiting component constraining the tailgate cover in the pickup truck tailgate and covering all or part of the open portion of the pickup truck tailgate, characterized in that, The limiting component includes: The locking tongue (5) is configured to restrict relative displacement between the pickup truck bed and the bed cover in a third direction (D3); An adjuster (7), operably connected to the latch, is configured to change the contact range between the latch (5) and the pickup truck bed; The stop is configured to limit relative displacement between the pickup truck bed and the bed cover in a second direction (D2) or a first direction (D1).

2. The limiting component according to claim 1, characterized in that, The latch (5) is movably disposed on the bottom surface of the tailgate, which faces the surface of the pickup truck tailgate, and can extend or retract in the first direction (D1), and has a locking surface (501). The pickup truck bed has a card-reading surface (10) in the extending direction of the first direction (D1). When the card surface (501) abuts against the card-to-card surface (10), the tailgate and the pickup truck tailgate are locked together.

3. The limiting component according to claim 2, characterized in that, It also includes a reset mechanism, configured to drive the latch (5) back to its initial position when the latch (5) loses external force.

4. The limiting component according to claim 3, characterized in that, The reset mechanism includes: The housing (502) has a first groove (503) and a second groove (504) along its own length direction, and the two are separated by a partition (505); A pull rod (506) has a head and a rod. The head is located in the second slide groove (504) and slides in cooperation with the second slide groove (504). One end of the rod is connected to the head, and the other end extends through the partition plate (505) into the first slide groove (503) and is fitted with a spring (507). The rod passes through the spring (507) and is connected to the locking tongue (5) through a latch (509). The locking tongue (5) slides in cooperation with the first slide groove (503). When a pulling force is applied to the pull rod (506), the pull rod (506) causes the locking tongue (5) to slide along the first slide groove (503) and squeeze the spring (507). The spring (507) undergoes elastic deformation. After the pulling force is lost, the locking tongue (5) returns to its initial position under the elastic reaction force of the spring (507).

5. The limiting component according to claim 1, characterized in that, The regulator (7) is configured to change the contact range between the locking surface (501) of the latch (5) and the locking surface (10) of the pickup truck trunk.

6. The limiting component according to claim 5, characterized in that, The regulator includes: The main body (701) has a through hole (702) on its end face along a first direction (D1), and a transition groove (703) on its side along a third direction (D3), dividing one side of the main body (701) into two relatively independent constraint parts (704). A constraint hole (705) is formed on the side of each constraint part (704) along the third direction (D3), and each constraint hole (705) communicates with the through hole (702), forming a "T"-shaped channel. The traction member (706) is connected at one end to the locking tongue (5), and the other end passes through the through hole (702) and is intersected with the constraint hole (705) in the third direction (D3); Locking member (707) is screwed into the constraint hole (705) and abuts against the traction member (706) to fix the traction member (706).

7. The limiting component according to claim 1, characterized in that, The stop includes: A stop (8) is detachably mounted on the surface of the tailgate facing the pickup truck tailgate; Limiting groove (9) is provided on the guide rail (2) or the limiting member (6) on the guide rail along its own length direction of the pickup truck tail box or the fastener (13) fixed on the side of the pickup truck tail box or the waiting surface (10) on both sides of the pickup truck tail box along its own length direction. When the tailgate is in a flat position, the stop (8) extends into the limiting groove (9) to limit the displacement of the tailgate in the second direction (D2) or to limit the displacement of the tailgate in the first direction (D1).

8. The limiting component according to claim 7, characterized in that, The block (8) has a "T" shaped cross section and a first blocking surface and a second blocking surface away from the first blocking surface in the second direction (D2); a fifth blocking surface is provided in the side direction along its own length direction towards the pickup truck tail box in the first direction (D1); The limiting groove (9) is strip-shaped and has an opening on one side. The inner wall of the limiting groove (9) has a third stop and an opposite fourth stop in the second direction (D2). The third stop and the fourth stop form a limiting space. A sixth stop is provided on the side away from the opening and opposite to the opening. The limiting space restricts the displacement of the first and second stops in the second direction (D2); the sixth stop restricts the displacement of the fifth stop in the first direction (D1).

9. The limiting component according to claim 1, characterized in that, The tailgate is pivotally connected by a plurality of rigid cover assemblies (1), each of the rigid cover assemblies (1) consisting of a rigid plate and a plurality of borders surrounding the rigid plate; The pickup truck's tail box is detachably equipped with guide rails (2) on both sides along its length.

10. The limiting component according to claim 1, characterized in that, The tailgate is composed of a soft cover (4) and a frame (3). The frame (3) is formed by multiple frames pivotally connected. The soft cover (4) has a bent state, a flat state, or a rolled-up state. The soft cover (4) covers the frame (3) composed of multiple frames. The pickup truck's tail box is detachably equipped with guide rails (2) on both sides along its length.

11. An adjustment mechanism applied between a pickup truck tailgate and a tailgate cover, wherein the pickup truck tailgate and the tailgate cover have a locked state and an unlocked state, the locked state and the unlocked state are switched by the adjustment mechanism, and the contact range between the tailgate cover and the pickup truck tailgate is changed, characterized in that, include: The locking tongue (5) is configured to restrict relative displacement between the pickup truck bed and the bed cover in a third direction (D3); An adjuster (7), operably connected to the latch, is configured to change the contact range between the latch (5) and the pickup truck bed.

12. The adjusting mechanism according to claim 11, characterized in that, The latch (5) is movably disposed on the bottom surface of the tailgate, which faces the surface of the pickup truck tailgate, and can extend or retract in the first direction (D1), and has a locking surface (501). The pickup truck bed has a card-reading surface (10) in the extending direction of the first direction (D1). When the card surface (501) abuts against the card-to-card surface (10), the tailgate and the pickup truck tailgate are locked together.

13. The adjusting mechanism according to claim 12, characterized in that, It also includes a reset mechanism, configured to drive the latch (5) back to its initial position when the latch (5) loses external force.

14. The adjusting mechanism according to claim 13, characterized in that, The reset mechanism includes: The housing (502) has a first groove (503) and a second groove (504) along its own length direction, and the two are separated by a partition (505); A pull rod (506) has a head and a rod. The head is located in the second slide groove (504) and slides in cooperation with the second slide groove (504). One end of the rod is connected to the head, and the other end extends through the partition plate (505) into the first slide groove (503) and is fitted with a spring (507). The rod passes through the spring (507) and is connected to the locking tongue (5) through a latch (509). The locking tongue (5) slides in cooperation with the first slide groove (503). When a pulling force is applied to the pull rod (506), the pull rod (506) causes the locking tongue (5) to slide along the first slide groove (503) and squeeze the spring (507). The spring (507) undergoes elastic deformation. After the pulling force is lost, the locking tongue (5) returns to its initial position under the elastic reaction force of the spring (507).

15. The adjusting mechanism according to claim 11, characterized in that, The regulator (7) is configured to change the contact range between the locking surface (501) of the latch (5) and the locking surface (10) of the pickup truck trunk.

16. The adjusting mechanism according to claim 15, characterized in that, The regulator (7) includes: The main body (701) has a through hole (702) on its end face along a first direction (D1), and a transition groove (703) on its side along a third direction (D3), dividing one side of the main body (701) into two relatively independent constraint parts (704). A constraint hole (705) is formed on the side of each constraint part (704) along the third direction (D3), and each constraint hole (705) communicates with the through hole (702), forming a "T"-shaped channel. The traction member (706) is connected at one end to the locking tongue (5), and the other end passes through the through hole (702) and is intersected with the constraint hole (705) in the third direction (D3); Locking member (707) is screwed into the constraint hole (705) and abuts against the traction member (706) to fix the traction member (706).

17. The adjusting mechanism according to claim 11, characterized in that, The tailgate is pivotally connected by a plurality of rigid cover assemblies (1), each of the rigid cover assemblies (1) consisting of a rigid plate and a plurality of borders surrounding the rigid plate; The pickup truck's tail box is detachably equipped with guide rails (2) on both sides along its length.

18. The adjusting mechanism according to claim 11, characterized in that, The tailgate is composed of a soft cover (4) and a frame (3). The frame (3) is formed by multiple frames pivotally connected. The soft cover (4) has a bent state, a flat state, or a rolled-up state. The soft cover (4) covers the frame (3) composed of multiple frames. The pickup truck's tail box is detachably equipped with guide rails (2) on both sides along its length.

19. A locking unit, characterized in that, The locking unit, used between the tailgate and tailgate cover of a pickup truck, restricts the displacement of the tailgate cover in a second direction (D2) and a third direction (D3), keeping the tailgate cover relatively stationary with respect to the pickup truck tailgate in a flat position, including: The locking tongue (5) is configured to restrict relative displacement between the pickup truck bed and the bed cover in a third direction (D3); The stop is configured to limit relative displacement between the pickup truck bed and the bed cover in a second direction (D2) or a first direction (D1).

20. The locking unit according to claim 19, characterized in that, The latch (5) is movably disposed on the surface of the tailgate facing the pickup truck tailgate and can extend or retract in the first direction (D1), and has a locking surface (501). The pickup truck bed has a card-reading surface (10) in the extending direction of the first direction (D1). When the card surface (501) abuts against the card-to-card surface (10), the tailgate and the pickup truck tailgate are locked together.

21. The locking unit according to claim 20, characterized in that, It also includes a reset mechanism, configured to drive the latch (5) back to its initial position when the latch (5) loses external force.

22. The locking unit according to claim 21, characterized in that, The reset mechanism includes: The housing (502) has a first groove (503) and a second groove (504) along its own length direction, and the two are separated by a partition (505); A pull rod (506) has a head and a rod. The head is located in the second slide groove (504) and slides in cooperation with the second slide groove (504). One end of the rod is connected to the head, and the other end extends through the partition plate (505) into the first slide groove (503) and is fitted with a spring (507). The rod passes through the spring (507) and is connected to the locking tongue (5) through a latch (509). The locking tongue (5) slides in cooperation with the first slide groove (503). When a pulling force is applied to the pull rod (506), the pull rod (506) causes the locking tongue (5) to slide along the first slide groove (503) and squeeze the spring (507). The spring (507) undergoes elastic deformation. After the pulling force is lost, the locking tongue (5) returns to its initial position under the elastic reaction force of the spring (507).

23. The locking unit according to claim 21, characterized in that, The stop includes: A stop (8) is detachably mounted on the surface of the tailgate facing the pickup truck tailgate; Limiting groove (9), a limiting member (6) opened on the guide rail (2) or guide rail (2) on both sides of the pickup truck tail box along its own length direction, or a fastener (13) fixed on the side of the pickup truck tail box or on the waiting surface (10) on both sides of the pickup truck tail box along its own length direction. When the tailgate is in a flat position, the stop (8) extends into the limiting groove (9) to limit the displacement of the tailgate in the second direction (D2) or limit the displacement of the tailgate in the first direction (D1).

24. The locking unit according to claim 23, characterized in that, The block (8) has a "T" shaped cross section, a first blocking surface and a second blocking surface away from the first blocking surface in the second direction (D2), and a fifth blocking surface in the side direction along its own length direction towards the pickup truck tail box in the first direction (D1). The limiting groove (9) is strip-shaped and has an opening on one side. The inner wall of the limiting groove (9) has a third stop and a fourth stop in the second direction (D2). The third stop and the fourth stop form a limiting space. A sixth stop is provided on the side away from the opening and opposite to the opening. The limiting space restricts the displacement of the first and second stops in the second direction (D2); the sixth stop restricts the displacement of the fifth stop in the first direction (D1).

25. The locking unit according to claim 19, characterized in that, The tailgate is pivotally connected by a plurality of rigid cover assemblies (1), each of the rigid cover assemblies (1) consisting of a rigid plate and a plurality of borders surrounding the rigid plate; The pickup truck's tail box is detachably equipped with guide rails (2) on both sides along its length.

26. The locking unit according to claim 19, characterized in that, The tailgate is composed of a soft cover (4) and a frame (3). The frame (3) is formed by multiple frames pivotally connected. The soft cover (4) has a bent state, a flat state, or a rolled-up state. The soft cover (4) covers the frame (3) composed of multiple frames. The pickup truck's tail box is detachably equipped with guide rails (2) on both sides along its length.

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