Locking device easy to disassemble, assemble and adjust

Abstract

A locking device easy to disassemble, assemble and adjust comprises a shell assembly which is provided with a lock pin port and a rope port; the lock pin assembly can move relative to the lock pin port; the linkage rope is in transmission connection with the lock pin assembly; the shell assembly comprises a split type middle shell assembly and two end shell assemblies. The end shell assembly comprises a base plate, a first cover plate and a second cover plate. The first cover plate is fixed to the base plate, a front cavity is formed in the first cover plate, and the lock pin assembly is movably arranged in the front cavity. The second cover plate is fixed to the base plate and forms a rear cavity; the lock pin assembly is provided with a rope fixing part, the rope fixing part extends backwards into the rear cavity, and the linkage rope extends into the rear cavity through the rope port and is connected to the rope fixing part. According to the utility model, the split type shell structure is adopted, the installation position and the protection effect can be provided for the linkage rope and the lock pin assembly respectively, and the split type structure can be locally and independently detached, so that debugging and maintenance are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to an easily dismountable and adjustable locking device. BACKGROUND

[0002] The van of the delivery vehicle is open, so a van cover is needed to cover it to protect the goods inside. The existing covering system for covering the van of the delivery vehicle generally comprises a covering layer for covering the van of the delivery vehicle, a front frame edge connected to the front end of the covering layer, and a rear frame edge connected to the rear end of the covering layer; it also comprises a driver-side frame edge and a passenger-side frame edge respectively arranged at the upper end of the two side edges of the van, both ends of the front frame edge are fixed to the head of the driver-side frame edge and the head of the passenger-side frame edge, and the tail of the driver-side frame edge and the tail of the passenger-side frame edge are provided with a fixing mechanism. In use, the rear frame edge is pulled backward, the covering layer covers the rear of the van, and both ends of the front frame edge are fixed to the fixing mechanism. The general structure of the fixing mechanism is that a clamping seat is arranged at the tail of the driver-side frame edge and the tail of the passenger-side frame edge respectively, the clamping seat has a clamping hole with the opening facing backward, and the rear frame edge has a clamping tongue which is clamped into the clamping hole.

[0003] The existing delivery vehicle is equipped with a van cover and a frame assembly, the van cover is connected to the left and right side plates of the rear van through the frame assembly, so as to realize the installation of the van cover, and the van cover is formed by movably connecting a plurality of van cover plates two by two, so that the van cover can be folded and turned over to facilitate loading of goods. However, the existing van cover and frame assembly are mostly fixed by threads, clamping pins or ropes, and the above fixing methods require a certain amount of time to fix the van cover and the frame assembly to realize rain blocking or to release the fixing to realize folding and turning over, which is relatively troublesome to use.

[0004] In order to facilitate the deployment and storage of the compartment cover and the frame assembly, the existing solutions have the following examples, refer to patent document CN217420838U, discloses a locking structure of a compartment cover, the compartment cover includes at least two reversible cover units, the locking structure is fixed on the bottom of the cover unit through a mounting seat, the locking structure includes: a rotating part, which is rotatably arranged on the mounting seat, and the outer edge of the rotating part extends to provide at least one connecting part; a lock tongue, which is slidably arranged on the bottom of the cover unit, and the lock tongue is connected with the connecting part through a connecting piece, the lock tongue has a locking state in which it extends into the frame to restrict the folding of the cover unit, and an unlocking state in which it rotates with the rotating part and is separated from the frame; a first spring, one end of which is pivotally arranged on the mounting seat, and the other end is fixedly connected with the rotating part, the first spring drives the rotating part to return to the locking state; a limiting block is arranged on the outer side of the rotating part, and the two sides of the limiting block abut against the rotating part to limit the rotating part in the locking state or the unlocking state, facilitating operation and increasing the service life of the locking structure. Similar products generally have two lock tongues for locking function on both sides; according to the text and drawings of the patent document, it includes one integral lock rack (base plate), two end lock housings and one integral lock cover. This structure has certain defects, for example: 1. If the tension of the linkage rope needs to be adjusted or other maintenance operations are required, the entire lock cover needs to be disassembled, which is relatively troublesome; 2. The lock cover needs to cooperate with the handle, rope and lock tongue, so the assembly relationship is unique and requires high precision. Once the product precision or assembly precision of the related parts deviates, the assembly and use cannot be completed. SUMMARY

[0005] In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a locking device which is easy to disassemble and adjust.

[0006] The technical scheme for solving the technical problems of the utility model is as follows: a locking device which is easy to disassemble and adjust, comprising:

[0007] The shell assembly has a lock pin port and a rope port;

[0008] The lock pin assembly is configured in the shell assembly and can move relative to the lock pin port, so that the lock pin assembly has at least an unlocking position state and a locking position state;

[0009] The linkage rope is in transmission connection with the lock pin assembly;

[0010] The shell assembly includes a split middle shell assembly and two end shell assemblies, the split middle shell assembly is located between the two end shell assemblies, and the linkage rope extends out from both ends of the split middle shell assembly after passing through the split middle shell assembly;

[0011] The end housing assembly comprises a base plate, a first cover plate and a second cover plate;

[0012] The first cover plate is fixed to the base plate by a first fastener, and a front cavity is formed between the first cover plate and the base plate, the locking pin assembly is movably arranged in the front cavity, and the locking pin port is arranged at the front end of the front cavity;

[0013] The second cover plate is fixed to the base plate by a second fastener, and a rear cavity is formed between the second cover plate and the base plate, the second cover plate is connected to the rear end of the first cover plate, and the rope port is arranged at the rear end of the rear cavity;

[0014] The locking pin assembly has a rope fixing portion, the rope fixing portion extends rearward into the rear cavity, and the linkage rope extends into the rear cavity through the rope port and is connected to the rope fixing portion.

[0015] Specifically, the base plate is provided with a first threaded hole, the first cover plate is provided with a first waist-shaped hole, the first fastener enters the first threaded hole through the first waist-shaped hole to fix the first cover plate to the base plate, and the length of the first waist-shaped hole is greater than the diameter of the first threaded hole.

[0016] Specifically, the base plate is provided with a second threaded hole, the second cover plate is provided with a second waist-shaped hole, the second fastener enters the second threaded hole through the second waist-shaped hole to fix the second cover plate to the base plate, and the length of the second waist-shaped hole is greater than the diameter of the second threaded hole.

[0017] In some preferred embodiments of the utility model, the inner side wall of the base plate is provided with a support rib, the support rib divides the base plate into an upper region and a lower region, the first cover plate and the second cover plate are arranged in the upper region, and the first threaded hole and the second threaded hole are distributed on the support rib.

[0018] Further, the lower region is provided with a reinforcing plate, one part of the reinforcing plate is located in the front cavity, and the other part of the reinforcing plate is located in the rear cavity.

[0019] The reinforcing plate is provided with a plurality of serial holes, the first fastener is inserted into a part of the serial holes, and the second fastener is inserted into another part of the serial holes.

[0020] In some preferred embodiments of the utility model, a thickening pad is further arranged between the support rib and the first cover plate, and the thickening pad is provided with a through hole matched with the first fastener.

[0021] Specifically, the locking pin assembly comprises a locking pin body, a linkage rod and a reset spring.

[0022] The rope fixing part is formed at the rear end of the linkage rod, and the locking pin body is connected to the front end of the linkage rod.

[0023] Optionally, the rear end of the first cover plate is provided with a limiting hole, the radial dimension of the linkage rod is smaller than the hole diameter dimension of the limiting hole, and the width dimension of the rope fixing part is greater than the hole diameter dimension of the limiting hole, so that the rope fixing part and the rear end of the first cover plate form a limiting stop cooperation.

[0024] In some preferred embodiments of the utility model, the rear end of the first cover plate has an open slot, the two sides of the open slot are inwardly bent to form two blocking walls, the limiting hole is formed between the two blocking walls, and the rope fixing part can abut against the blocking walls and form a limiting stop cooperation.

[0025] Optionally, the reset spring is sleeved on the outer periphery of the linkage rod, and the rear end of the reset spring abuts against the blocking wall, and the front end of the reset spring abuts against the locking pin body.

[0026] The utility model discloses the beneficial effect lies in:

[0027] I. Adopt the split type shell structure, can therefore provide installation position and protection effect to linkage rope and locking pin assembly respectively, and the split type shell structure can be locally and individually disassembled, so that debugging and maintenance are convenient.

[0028] II. When the locking pin assembly needs to be installed or adjusted and maintained, only the first cover plate needs to be individually disassembled from the base plate, and when the linkage rope and the locking pin assembly need to be installed or tightness adjusted, only the second cover plate needs to be individually disassembled from the base plate.

[0029] III. The split type middle shell assembly provides stable protection effect for the linkage rope after first installation, and generally does not need to be disassembled in later use, and the second cover plate is two separate parts, so the second cover plate is smaller and can be individually installed and disassembled, and operation is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is the overall structure assembly schematic drawing of the utility model.

[0031] Figure 2 It is the local structure explosion drawing of the utility model.

[0032] Figure 3 It is the sectional view and local structure enlarged schematic drawing of the utility model.

[0033] Figure 4Is the lock pin assembly in the lock position state and the unlocking position state of the contrast schematic diagram.

[0034] Figure 5 Is the first cover plate alone when the schematic diagram of disassembly.

[0035] Figure 6 Is the second cover plate alone when the schematic diagram of disassembly.

[0036] Figure 7 Is the schematic diagram of the lock pin port of the utility model.

[0037] Figure 8 Is the connection schematic diagram of the reinforcing plate.

[0038] Figure 9 Is the structure schematic diagram of the base plate.

[0039] Figure 10 Is the structure schematic diagram of the first cover plate.

[0040] Figure 11 Is the structure schematic diagram of the second cover plate.

[0041] In the figure: 1, the shell assembly;1a, the lock pin port;1b, the rope port;11, split type middle shell assembly;12, end shell assembly;13, base plate;131, first threaded hole;132, second threaded hole;133, support rib;14, first cover plate;141, first waist type hole;142, limit hole;143, open slot;144, blocking wall;15, second cover plate;151, second waist type hole;16, front cavity;17, rear cavity;18, upper area;19, lower area;2, lock pin assembly;2a, unlocking position state;2b, lock position state;21, lock pin body;22, linkage rod;221, rope fixing part;23, return spring;3, linkage rope;31, protective sleeve;41, truck bed cover;42, truck bed wall;51, first fastener;52, second fastener;6, reinforcing plate;61, series connection hole;7, thickened pad plate;71 through hole. DETAILED DESCRIPTION

[0042] The utility model is further explained below in combination with the drawings and specific embodiments. It should be explained that the embodiment is only the specific elaboration of the utility model, and the purpose is to let the person skilled in the art better understand the technical scheme of the utility model, and should not be regarded as the limitation of the utility model.

[0043] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship are 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.

[0044] 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.

[0045] Example 1

[0046] Reference Figures 1-11 A locking device that is easy to assemble, disassemble, and adjust includes: a housing assembly 1 having a locking pin port 1a and a rope port 1b; a locking pin assembly 2 disposed within the housing assembly 1, and movable relative to the locking pin port 1a, such that the locking pin assembly 2 has at least an unlocked position state 2a and a locked position state 2b; and a linkage rope 3, which forms a transmission connection with the locking pin assembly 2. In actual use, the housing assembly 1 is fixed to a support surface (such as a truck bed cover 41). In the locked position state 2b, the locking pin assembly 2 can interfere with and limit the truck bed wall 42 to prevent the truck bed cover 41 from being opened. When the locking pin assembly 2 is in the unlocked position state 2a, the interference between the locking pin assembly 2 and the truck bed wall 42 is eliminated, thereby allowing the truck bed cover 41 to be opened normally.

[0047] The main feature of the present disclosure distinguished from the prior art is the structure of the shell assembly 1, specifically: the shell assembly 1 comprises a split middle shell assembly 11 and two end shell assemblies 12, the split middle shell assembly 11 is located between the two end shell assemblies 12, and the linkage rope 3 passes through the split middle shell assembly 11 and extends out from both ends of the split middle shell assembly 11; more specifically, the end shell assembly 12 comprises a base plate 13, a first cover plate 14 and a second cover plate 15; wherein the first cover plate 14 is fixed to the base plate 13 by a first fastener 51, a front cavity 16 is formed between the first cover plate 14 and the base plate 13, the lock pin assembly 2 is movably arranged in the front cavity 16, and the lock pin port 1a is arranged at the front end of the front cavity 16; the second cover plate 15 is fixed to the base plate 13 by a second fastener 52, a rear cavity 17 is formed between the second cover plate 15 and the base plate 13, the second cover plate 15 is connected to the rear end of the first cover plate 14, and the rope port 1b is arranged at the rear end of the rear cavity 17; the lock pin assembly 2 has a rope fixing part 221, the rope fixing part 221 extends rearward into the rear cavity 17, and the linkage rope 3 extends into the rear cavity 17 through the rope port 1b and is connected to the rope fixing part 221.

[0048] The split shell structure is adopted, so that the linkage rope 3 and the lock pin assembly 2 can be provided with installation positions and protection effects respectively, and the split shell structure can be partially and individually disassembled to facilitate debugging and maintenance. For example: when the lock pin assembly 2 needs to be installed or adjusted and maintained, only the first cover plate 14 needs to be individually disassembled from the base plate 13; when the linkage rope 3 and the lock pin assembly 2 need to be installed or adjusted in tightness, only the second cover plate 15 needs to be individually disassembled from the base plate 13; the split middle shell assembly 11 provides stable protection for the linkage rope 3 after initial installation, and generally does not need to be disassembled in later use, and the split middle shell assembly 11 and the second cover plate 15 are two separate parts, so the size of the second cover plate 15 is smaller and can be individually installed and disassembled, which is more convenient to operate.

[0049] Part of the linkage rope 3 between the second cover plate 15 and the split middle shell assembly 11 is exposed outside, and the linkage rope 3 is generally thin, which can easily cause harm to the user if directly contacting the user. Preferably, a protective sleeve 31 is sleeved on this part of the linkage rope 3 to provide a safety protection effect.

[0050] It needs to be particularly emphasized that one of the common scenarios of the present disclosure is as follows: in the initial use of the locking device assembled to the truck bed cover 41, the tightness of the linkage rope 3 is appropriate; but after a long time of use, the linkage rope 3 produces material fatigue, so that the linkage rope 3 is longer or shorter than the initial time, resulting in a certain error in the cooperation of the linkage rope 3 and the locking pin assembly 2, and thus the locking pin assembly 2 cannot realize good locking function. Therefore, the technology of the present disclosure only needs to open the second cover plate 15, and the cooperation between the linkage rope 3 and the locking pin assembly 2 needs to be adjusted and maintained.

[0051] The preferred connection mode of the base plate 13 and the first cover plate 14 is that, referring to Figure 5 , the first threaded hole 131 is formed on the base plate 13, the first waist-shaped hole 141 is formed on the first cover plate 14, the first fastener 51 enters the first threaded hole 131 after passing through the first waist-shaped hole 141, so as to fix the first cover plate 14 to the base plate 13, and the length size of the first waist-shaped hole 141 is greater than the hole diameter size of the first threaded hole 131. Through the setting of the first waist-shaped hole 141 and the first threaded hole 131, the relative positional relationship can be fine-tuned when the first cover plate 14 and the base plate 13 are installed, so as to achieve the most appropriate assembly relationship. On the other hand, it can also overcome the defect that the parts cannot be assembled due to insufficient dimensional accuracy, greatly improving the yield.

[0052] The preferred connection mode of the base plate 13 and the second cover plate 15 is that, referring to Figure 6 , the second threaded hole 132 is formed on the base plate 13, the second waist-shaped hole 151 is formed on the second cover plate 15, the second fastener 52 enters the second threaded hole 132 after passing through the second waist-shaped hole 151, so as to fix the second cover plate 15 to the base plate 13, and the length size of the second waist-shaped hole 151 is greater than the hole diameter size of the second threaded hole 132. Through the setting of the second waist-shaped hole 151 and the second threaded hole 132, the relative positional relationship can be fine-tuned when the second cover plate 15 and the base plate 13 are installed, so as to achieve the most appropriate assembly relationship. On the other hand, it can also overcome the defect that the parts cannot be assembled due to insufficient dimensional accuracy, greatly improving the yield.

[0053] Embodiment two

[0054] Referring to Figures 7-8In some preferred embodiments of the utility model, the inner side wall of the base plate 13 is provided with a support rib 133, the support rib 133 divides the base plate 13 into an upper area 18 and a lower area 19, the first cover plate 14 and the second cover plate 15 are both arranged in the upper area 18, and the first threaded hole 131 and the second threaded hole 132 are distributed on the support rib 133. The support rib 133 is arranged to divide the upper and lower spaces of the base plate 13, and to provide physical structural support for the first cover plate 14 and the second cover plate 15 and achieve the connection and fixation of the base plate 13, the first cover plate 14 and the second cover plate 15.

[0055] Further, the lower area 19 is provided with a reinforcing plate 6, one part of the reinforcing plate 6 is located in the front cavity 16, and the other part of the reinforcing plate 6 is located in the rear cavity 17. The application of the reinforcing plate 6 can make the connection between the base plate 13, the first cover plate 14 and the second cover plate 15 more stable and reliable. At the same time, the internal space of the base plate 13 is divided by the support rib 133, and the lower area 19 provides installation space for the reinforcing plate 6.

[0056] On the other hand, the reinforcing plate 6 is provided with a plurality of serial holes 61, the first fastener 51 is connected to a part of the serial holes 61, and the second fastener 52 is connected to another part of the serial holes 61. It should be emphasized that the design and use of the serial holes make the reinforcing plate 6 a physical transition structure, and the reinforcing plate 6 is connected in series with the second cover plate 15, the first cover plate 14 and the base plate 13, thereby forming a more reliable connection between the locking pin assembly 2 and the shell assembly 1, reducing the probability of looseness and shaking, and being able to resist greater external impact force.

[0057] In some preferred embodiments of the utility model, the support rib 133 and the first cover plate 14 are further provided with a thickened pad 7, and the thickened pad 7 is provided with a through hole matched with the first fastener 51. The thickened pad 7 is arranged to fill the gap in the space, assist the first cover plate 14, enhance the connection strength, reduce the probability of deformation of the first cover plate 14 and the support rib 133 caused by the first fastener 51 in use, and make the whole more stable and quiet in use.

[0058] Embodiment three

[0059] On the basis of the structural scheme of any of the foregoing embodiments, the embodiment provides a preferred structural scheme of the locking pin assembly 2, as follows:

[0060] Firstly, refer to Figures 2-3Similar to the prior art, the lock pin assembly 2 comprises a lock pin body 21, a linkage rod 22 and a reset spring 23; the rope fixing portion 221 is formed at the rear end of the linkage rod 22, and the lock pin body 21 is connected to the front end of the linkage rod 22.

[0061] Optionally, the rear end of the first cover plate 14 is provided with a limiting hole 142, the radial dimension of the linkage rod 22 is smaller than the hole diameter dimension of the limiting hole 142, and the width dimension of the rope fixing portion 221 is greater than the hole diameter dimension of the limiting hole 142, so that the rope fixing portion 221 and the rear end of the first cover plate 14 form a limiting stop cooperation. By limiting the dimensions of each component, the movement track of the linkage rod 22 and the lock tongue can be constrained, so that the lock pin assembly 2 operates more stably and reliably.

[0062] Regarding the specific forming mode of the limiting hole 142, preferably, Figure 10 the rear end of the first cover plate 14 has an open slot 143, the two sides of the open slot 143 are bent inward to form two blocking walls 144, the limiting hole 142 is formed between the two blocking walls 144, and the rope fixing portion 221 can abut against the blocking walls 144 and form a limiting stop cooperation. The first cover plate 14 is preferably made of aluminum alloy, which has the characteristics of light weight, high strength, good impact resistance and the like, and is integrally formed by stamping.

[0063] Optionally, referring to Figures 2-3 the reset spring 23 is sleeved on the outer periphery of the linkage rod 22, the rear end of the reset spring 23 abuts against the blocking wall 144, and the front end of the reset spring 23 abuts against the lock pin body 21, so that the reset spring 23 has a relatively stable position, so that it will not be removed from the station, and the elastic force is more stable and reliable.

[0064] It should be noted that other technical solutions of the present application are all prior art, and therefore will not be described.

[0065] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled persons in the technical field, without departing from the concept of the present application, a number of improvements and refinements can be made, and these improvements and refinements should be regarded as the protection scope of the present application.

Claims

1. A detachable and adjustable locking device, comprising: a housing assembly (1) having a lock pin port (1a) and a rope port (1b); a lock pin assembly (2) configured in the housing assembly (1), and the lock pin assembly (2) is movable relative to the lock pin port (1a) so that the lock pin assembly (2) has at least an unlocked position (2a) and a locked position (2b); a linkage rope (3) in driving connection with the lock pin assembly (2); characterized in that the housing assembly (1) comprises a split middle housing assembly (11) and two end housing assemblies (12), the split middle housing assembly (11) is located between the two end housing assemblies (12), and the linkage rope (3) passes through the split middle housing assembly (11) and extends out from both ends of the split middle housing assembly (11); the end housing assembly (12) comprises a base plate (13), a first cover plate (14) and a second cover plate (15); the first cover plate (14) is fixed to the base plate (13) by a first fastener (51), and a front cavity (16) is formed between the first cover plate (14) and the base plate (13), the lock pin assembly (2) is movably arranged in the front cavity (16), and the lock pin port (1a) is arranged at the front end of the front cavity (16); the second cover plate (15) is fixed to the base plate (13) by a second fastener (52), and a rear cavity (17) is formed between the second cover plate (15) and the base plate (13), the second cover plate (15) is connected to the rear end of the first cover plate (14), and the rope port (1b) is arranged at the rear end of the rear cavity (17); the lock pin assembly (2) has a rope fixing part (221) extending rearward into the rear cavity (17), and the linkage rope (3) extends into the rear cavity (17) through the rope port (1b) and is connected to the rope fixing part (221).

2. The quick-release, adjustable locking device of claim 1, wherein: a first threaded hole (131) is formed in the base plate (13), a first waist-shaped hole (141) is formed in the first cover plate (14), the first fastener (51) enters the first threaded hole (131) through the first waist-shaped hole (141) to fix the first cover plate (14) to the base plate (13), and the length of the first waist-shaped hole (141) is greater than the diameter of the first threaded hole (131).

3. The quick-release, adjustable locking device of claim 2, wherein: a second threaded hole (132) is formed in the base plate (13), a second waist-shaped hole (151) is formed in the second cover plate (15), the second fastener (52) enters the second threaded hole (132) through the second waist-shaped hole (151) to fix the second cover plate (15) to the base plate (13), and the length of the second waist-shaped hole (151) is greater than the diameter of the second threaded hole (132).

4. The quick-release, adjustable locking device of claim 3, wherein: The inner side wall of the base plate (13) is provided with a support rib (133), the support rib (133) divides the base plate (13) into an upper area (18) and a lower area (19), the first cover plate (14) and the second cover plate (15) are arranged in the upper area (18), and the first threaded hole (131) and the second threaded hole (132) are distributed on the support rib (133).

5. The quick-release, adjustable locking device of claim 4, wherein: The lower area (19) is provided with a reinforcing plate (6), one part of the reinforcing plate (6) is located in the front cavity (16), and the other part of the reinforcing plate (6) is located in the rear cavity (17). The reinforcing plate (6) is provided with a plurality of serial holes (61), the first fastener (51) is connected to one part of the serial holes (61), and the second fastener (52) is connected to another part of the serial holes (61).

6. The quick-release, adjustable locking device of claim 4, wherein: The support rib (133) and the first cover plate (14) are further provided with a thickened pad plate (7), and the thickened pad plate (7) is provided with a through hole matched with the first fastener (51).

7. The quick-release, adjustable locking device of claim 1, wherein: The lock pin assembly (2) comprises a lock pin body (21), a linkage rod (22) and a reset spring (23). The rope fixing part (221) is formed at the rear end of the linkage rod (22), and the lock pin body (21) is connected to the front end of the linkage rod (22).

8. The releasably adjustable locking device of claim 7, wherein: The rear end of the first cover plate (14) is provided with a limiting hole (142), the radial dimension of the linkage rod (22) is smaller than the hole diameter dimension of the limiting hole (142), and the width dimension of the rope fixing part (221) is greater than the hole diameter dimension of the limiting hole (142), so that the rope fixing part (221) and the rear end of the first cover plate (14) form a limiting stop cooperation.

9. The releasably adjustable locking device of claim 8, wherein: The rear end of the first cover plate (14) has an open slot (143), two side walls (144) are bent inward on both sides of the open slot (143), and the limiting hole (142) is formed between the two side walls (144), and the rope fixing part (221) can abut against the side walls (144) and form a limiting stop cooperation.

10. The releasably adjustable locking device of claim 9, wherein: The reset spring (23) is sleeved on the outer periphery of the linkage rod (22), and the rear end of the reset spring (23) abuts against the side wall (144), and the front end of the reset spring (23) abuts against the lock pin body (21).

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