Ground-distance-adjustable rope type locking device

By introducing a cable reel-in/deel-out mechanism into the locking device of the cargo compartment cover and adjusting the length of the linkage rope, the problem of looseness or tightness of the rope locking device during production or use is solved, thereby improving the locking effect and stability of the product and reducing maintenance costs.

CN223922829UActive Publication Date: 2026-02-17CIXI CITY LIYUAN AUTO PARTS
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202520478395.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2026-02-17
Estimated Expiration
2035-03-18

AI Technical Summary

Technical Problem

The existing rope-type locking device for the cargo compartment cover cannot be adjusted in length, which leads to loosening or tightness problems caused by the fit tolerance of parts or assembly tolerance during the production process, affecting the locking effect, and the replacement of ropes is troublesome.

Method used

Design an adjustable ground-distance rope-type locking device, comprising a housing assembly, a locking pin assembly, a linkage rope, an unlocking assembly, a reset assembly, and a rope winding and unwinding mechanism. The length of the linkage rope is adjusted by the rope winding and unwinding mechanism to ensure accurate locking effect.

Benefits of technology

By adjusting the length of the linkage rope, the problem of looseness or tightness caused by the production process or use is solved, thereby improving the product qualification rate and usage stability, and reducing maintenance costs.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223922829U_ABST
    Figure CN223922829U_ABST
Patent Text Reader

Abstract

The utility model discloses a distance-adjustable rope type locking device, which comprises a shell component, a locking component and a locking component, the lock pin assembly is assembled at the lock pin port and can move relative to the lock pin port, and the lock pin assembly at least has an unlocking position state and a locking position state; the linkage rope is in transmission connection with the lock pin assembly; the unlocking assembly acts on the lock pin assembly through a linkage rope, so that the lock pin assembly is switched to an unlocking position state from a locking position state; the reset assembly acts on the lock pin assembly so that the lock pin assembly can always have the movement trend of being switched to the locking position state. And the take-up and pay-off mechanism acts on the linkage rope so that the maximum distance between the two ends of the linkage rope can be achieved. The action mechanism of the take-up and pay-off mechanism is to control a part of the linkage rope and store or release the part of the linkage rope so as to overcome the loosening or tightening phenomenon of the linkage rope and the lock pin assembly.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to an adjustable ground-distance rope-type locking device. Background Technology

[0002] The cargo compartment of a transport vehicle is open, therefore a cover is needed to protect the contents. Existing covering systems for transport vehicle compartments generally include a cover layer, with a front frame edge at the front and a rear frame edge at the rear; it also includes driver-side and passenger-side frame edges located on the upper sides of both sides of the cargo compartment. The two ends of the front frame edge are fixed to the heads of the driver-side and passenger-side frame edges, respectively, and the tail ends of the driver-side and passenger-side frame edges are equipped with fixing mechanisms. In use, the rear frame edge is pulled back, and after the cover layer covers the compartment, the two ends of the front frame edge are fixed to the fixing mechanisms. The fixing mechanism generally has the following structure: a locking seat is provided at the tail end of the driver-side and passenger-side frame edges, with a locking slot opening to the rear, and a locking tongue on the rear frame edge that engages with the locking slot. Existing cargo vehicles are equipped with a lid and a frame assembly. The frame assembly connects the lid to the left and right side panels of the rear compartment, thus enabling the lid to be installed. The lid is made up of multiple lid panels that are movably connected in pairs, allowing the lid to be flipped and folded for loading goods.

[0003] Example 1 of the prior art, referring to patent document CN213199428U, discloses a locking structure for a vehicle body cover, including a vehicle body side panel, a fixed frame fixed to the vehicle body side panel, and a vehicle body cover mounted on the fixed frame. The vehicle body cover is provided with a locking component, which has a locking position and an unlocking position. When the locking component is in the locking position, the locking component interferes with the fixed frame, thereby fixing the vehicle body cover. When the locking component is in the unlocking position, the locking component releases interference from the fixed frame, thereby allowing the vehicle body cover to be freely flipped and folded.

[0004] Example 2 of the prior art, referring to patent document CN114458107A, discloses a locking structure for a vehicle cover. The vehicle cover includes at least two flip-up cover units. The locking structure is fixed to the bottom of the cover units by a mounting base. The locking structure includes: a rotating member rotatably mounted on the mounting base, with at least one connecting portion extending from the outer edge of the rotating member; a latch slidably mounted at the bottom of the cover units, connected to the connecting portion by a connecting member, the latch having a locked state extending within a frame to restrict the flipping of the cover units, and an unlocked state rotating with the rotating member and disengaging from the frame; a first spring, one end of which is pivotally mounted on the mounting base, and the other end fixedly connected to the rotating member, the first spring driving the rotating member back to the locked state; and a limiting block located on the outside of the rotating member, the two sides of the limiting block abutting against the rotating member to limit the rotating member to the locked or unlocked state.

[0005] Based on the above-mentioned technical examples 1 and 2, as well as other existing technologies, the applicant found that they have the same drawbacks. Simply put, the specifications of their ropes are fixed, so the length cannot be adjusted.

[0006] More specifically: First, in the early stages, such as during production, manufacturing process issues may lead to tolerances in the fit between parts, or assembly process issues may lead to tolerances in the assembly of parts. This results in some products having ropes that are too tightly connected to the locking tongue (prone to breakage), while in others the ropes and locking mechanism are too loosely connected, making it difficult to lock properly. Second, during use, wear and tear occurs in the components. For example, the rope itself may stretch after repeated pulling (under the same initial conditions), causing the rope and locking mechanism to become too loosely connected, resulting in incomplete locking.

[0007] On the other hand, when the above situation occurs, there are generally two ways to deal with it with existing technology. One is to keep it unchanged and continue to use it, so that the problems will become more and more serious and frequent. The other is to replace the problematic parts (mainly ropes), which requires disassembling and assembling the product, which is very troublesome and will undoubtedly increase the user's cost.

[0008] Therefore, this application addresses a gap in the existing technology by introducing a new solution. Summary of the Invention

[0009] In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides an adjustable ground-distance rope locking device.

[0010] The technical solution of this utility model to solve its technical problem is: an adjustable ground-distance rope-type locking device, comprising:

[0011] Housing assembly having a locking pin port;

[0012] A locking pin assembly is mounted at a locking pin port and is movable relative to the locking pin port, and the locking pin assembly has at least an unlocked position state and a locked position state.

[0013] The linkage rope is connected to the locking pin assembly in a transmission manner;

[0014] The unlocking component acts on the locking pin component via a linkage rope, causing the locking pin component to switch from the locked position to the unlocked position.

[0015] The reset component acts on the locking pin component so that the locking pin component always has a tendency to switch to the locked position.

[0016] It also includes:

[0017] The take-up and release mechanism acts on the linkage rope to reduce or increase the maximum distance between the two ends of the linkage rope.

[0018] A preferred solution of this utility model is that the take-up and release mechanism includes a first control component and a first tensioning component;

[0019] The first control component is used to drive the first tensioning component to move, and the first control component responds to the user's operation.

[0020] The first tensioning component acts on the linkage rope so that the first tensioning component restrains linkage ropes of different lengths.

[0021] Specifically, the first tensioning assembly includes a movable tensioning sleeve and at least one fixed tensioning post;

[0022] The first control component includes a first control housing, a first control handle, and a guide component;

[0023] The first control housing is assembled on the housing assembly and forms a first chamber. An adjustment through hole is provided on the upper end face of the first control housing. A first guide groove is formed on the inner side of the adjustment through hole. The guide member is movably disposed in the first guide groove.

[0024] The first control handle has a control section and a threaded connection section. The control section is located outside the first control housing. The threaded connection section passes through the adjustment hole, the guide nut, and the movable tensioning sleeve from top to bottom to form a threaded connection with the housing assembly.

[0025] The length of the adjustment hole is greater than the length of the threaded connection section.

[0026] Optionally, the adjustment through hole is not parallel to the linkage rope, so that the moving path of the movable tensioning sleeve and the linkage rope are staggered.

[0027] Preferably, the first chamber has a first port and a second port, and the linkage rope enters and exits the first chamber through the first port and the second port;

[0028] The movable tensioning sleeve has one unit located in the middle of the first chamber, and the fixed tensioning columns have two units symmetrically distributed on both sides of the movable tensioning sleeve. The fixed tensioning columns are fixedly connected to the first control housing via a first fastener.

[0029] The cross-sectional area of ​​the guide member is larger than the cross-sectional area of ​​the movable tensioning sleeve;

[0030] The linkage rope contacts the outer wall of the movable tension sleeve, and the lower end face of the guide member can contact the linkage rope and form a limiting fit.

[0031] Another preferred solution of this utility model is that the take-up and unwinding mechanism includes a second control component, a disc-shaped rotating component, and a plurality of winding tensioning columns.

[0032] The second control component is used to drive the disc-shaped rotating component to rotate, and the second control component responds to the user's operation.

[0033] The winding tension column is fixed on the disc-shaped rotating component. Multiple winding tension columns are staggered with each other along the initial direction of the linkage rope and form a rope threading space. The linkage rope is at least partially threaded in the rope threading space.

[0034] The aforementioned winding tensioning column acts on the linkage rope so that the winding tensioning column restrains linkage ropes of different lengths.

[0035] Specifically, the second control component includes a second control housing and a second control knob. The second control knob is fixedly connected to the disc-shaped rotating component so that the disc-shaped rotating component and the second control knob rotate together.

[0036] The second control housing has a second chamber, the disc-shaped rotating member is located in the second chamber, and the second control housing has a rotating hole. The lower end of the disc-shaped rotating member has a shaft portion, which extends into the rotating hole and forms a clearance fit.

[0037] The second control knob has a handle section and a transmission section, the handle section extending to the outside of the second control housing, and the transmission section being at least partially located in the second chamber;

[0038] The second control housing has a threaded hole, and the outer wall of the transmission section has a threaded section, which forms a threaded connection with the threaded hole.

[0039] Optionally, the second control knob is fixedly connected to the disc-shaped rotating component via a second fastener.

[0040] Preferably, the bottom of the second control housing is provided with a limiting flange, and the disc-shaped rotating component is located inside the limiting flange;

[0041] The limiting flange is arc-shaped and has a second guide groove. The disc-shaped rotating component has a guide block that extends into the second guide groove. When the disc-shaped rotating component rotates, the guide block can move along the trajectory of the second guide groove.

[0042] The beneficial effects of this utility model are as follows:

[0043] The working mechanism of the cable retraction / release mechanism is to control a portion of the linkage rope, either retracting or releasing it. Specifically, when the cable retraction mechanism retracts a longer length of linkage rope, the actual length of the rope in use is shortened to overcome any looseness between the linkage rope and the locking pin assembly, ensuring precise locking. Alternatively, if the product's precision or assembly precision is insufficient, causing the linkage rope to be too tight, the user can release a portion of the linkage rope through the cable retraction mechanism, increasing the actual length of the rope in use and eliminating the tightness. Specifically, staff or users can adjust the cable retraction / release mechanism according to the actual situation of the product.

[0044] Second, the timing of using the take-up and unwinding mechanism is not limited. It can be used by staff for debugging during the production and assembly process, or by users for debugging after encountering problems during use. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0046] Figure 2 This is a schematic diagram comparing the unlocked and locked positions of the locking pin assembly.

[0047] Figure 3 This is a schematic diagram showing the assembly of the reset component, the linkage rope, and the locking pin component.

[0048] Figure 4 This is a partial structural diagram of the wire take-up and release mechanism in Embodiment 2.

[0049] Figure 5 This is a partial structural exploded view of the wire take-up and release mechanism in Embodiment 2.

[0050] Figure 6 This is a schematic diagram of the structure of the first control housing in Embodiment 2.

[0051] Figure 7 This is a schematic diagram and a state diagram of the linkage ropes when the wire take-up and release mechanism controls a large number of linkage ropes in Embodiment 2.

[0052] Figure 8 This is a schematic diagram of the winding and unwinding mechanism in Embodiment 2 when it controls a small number of linkage ropes, and a state diagram of the linkage ropes.

[0053] Figure 9 This is a partial structural exploded view of the take-up and unwind mechanism in Embodiment 3.

[0054] Figure 10 This is a schematic diagram and a state diagram of the linkage ropes when the wire take-up and release mechanism controls a large number of linkage ropes in Embodiment 3.

[0055] Figure 11 This is a schematic diagram of the winding and unwinding mechanism in Embodiment 3 when it controls a small number of linkage ropes, and a state diagram of the linkage ropes.

[0056] Figure 12 This is a partial structural schematic diagram of the second control component and the disc-shaped rotating component in the embodiment.

[0057] In the diagram: 1. Housing assembly; 11. Locking pin port; 2. Locking pin assembly; 2a. Unlocked position; 2b. Locked position; 3. Linkage rope; 4. Unlocking assembly; 5. Reset assembly; 6. Cable reeling mechanism; 6L. Maximum spacing; 6a. Orthogonal point; 61. First control component; 611. First control housing; 6111. First chamber; 6112. Adjustment through hole; 6113. First guide groove; 6114. First port; 6115. Second port; 612. First control handle; 6121. Control section; 6122. Threaded connection section; 613. Guide mechanism Components; 62, First tensioning assembly; 621, Movable tensioning sleeve; 622, Fixed tensioning column; 63, First fastener; 7a, Rope threading space; 71, Second control component; 711, Second control housing; 7111, Second chamber; 7112, Rotating hole; 7113, Threaded hole; 712, Second control knob; 7121, Handle section; 7122, Transmission section; 7123, Threaded section; 72, Disc-shaped rotating component; 721, Shaft; 722, Guide block; 73, Winding tensioning column; 74, Second fastener; 75, Limiting flange; 751, Second guide groove. Detailed Implementation

[0058] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments are merely specific descriptions of the present invention, and their purpose is to enable those skilled in the art to better understand the technical solution of the present invention, and should not be regarded as limitations on the present invention.

[0059] 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.

[0060] 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.

[0061] Example 1

[0062] Reference Figures 1-12 An adjustable ground-distance rope-type locking device includes: a housing assembly 1 having a locking pin port 11; a locking pin assembly 2 (preferably a locking tongue) mounted at the locking pin port 11 and movable relative to the locking pin port 11, wherein the locking pin assembly 2 has at least an unlocked position state 2a and a locked position state 2b; a linkage rope 3 being tractively connected to the locking pin assembly 2; an unlocking assembly 4 (preferably a knob assembly or a handle assembly) acting on the locking pin assembly 2 via the linkage rope 3 to switch the locking pin assembly 2 from the locked position state 2b to the unlocked position state 2a; and a reset assembly 5 (preferably a spring) acting on the locking pin assembly 2 to ensure that the locking pin assembly 2 always has a tendency to switch to the locked position state 2b.

[0063] The working principle during the unlocking operation is as follows: the user controls the unlocking operation component, and the linkage rope 3 applies power to the locking pin assembly 2, so that the locking pin assembly 2 switches from the locked position state 2b to the unlocked position state 2a.

[0064] The working principle during the locking operation is as follows: when the user releases the unlocking operation component, the locking pin assembly 2 is relieved of the external force, and under the reset force of the reset component 5 (the force accumulated during the unlocking process), the locking pin assembly 2 switches to the locked position state 2b. At the same time, the reset component 5 also restores the linkage rope 3 and the unlocking component 4 to their initial state.

[0065] It is important to emphasize that, unlike existing technologies, this disclosure also includes a cable reeling mechanism 6, which acts on the linkage rope 3 to reduce or increase the maximum distance 6L between the two ends of the linkage rope 3. It can be understood that the working mechanism of the cable reeling mechanism 6 is to control a portion of the linkage rope 3, reeling in or releasing that portion. For example, when the cable reeling mechanism reels in a longer length of linkage rope 3, the actual length of the linkage rope 3 used becomes shorter, overcoming any looseness between the linkage rope 3 and the locking pin assembly 2, ensuring accurate locking. Alternatively, if the product precision or assembly precision is insufficient, causing the linkage rope 3 to be too tight, the user can release a portion of the linkage rope 3 through the cable reeling mechanism, increasing the actual length of the linkage rope 3 used, thus eliminating the tightness. Specifically, workers or users can adjust the cable reeling mechanism 6 according to the actual situation of the product.

[0066] On the other hand, it is worth mentioning that the timing of use of the take-up and unwinding mechanism 6 is not limited. It can be used by staff for debugging during the production and assembly process, or by users for debugging after encountering problems during use.

[0067] Therefore, the cable management mechanism provided in this disclosure can compensate for the certain fit tolerances between parts caused by manufacturing process issues or assembly process issues, greatly improving the product's pass rate and precision. It can also compensate for the fit tolerances caused by component deformation after use, ensuring stable and reliable performance after long-term use and saving on replacement and maintenance costs.

[0068] Example 2

[0069] Based on the structure of Embodiment 1, this embodiment provides a preferred solution for the wire take-up and unwinding mechanism 6, as described below. Figures 4-8 The details are as follows:

[0070] The cable reeling and unwinding mechanism 6 includes a first control member 61 and a first tensioning component 62. The first control member 61 drives the first tensioning component 62 to move, and the first control member 61 responds to user actions, such as pushing, pulling, rotating, or pressing, without specific limitations. Conversely, the first tensioning component 62 acts on the linkage rope 3, thereby restraining linkage ropes 3 of different lengths.

[0071] More specifically, the first tensioning assembly 62 includes a movable tensioning sleeve 621 and at least one fixed tensioning post 622. The linkage rope 3 abuts against the movable tensioning sleeve 621 and the fixed tensioning post 622 respectively to provide support for the linkage rope 3. The fixed tensioning post 622 serves as a fixed fulcrum, while the movable tensioning sleeve 621 serves as a changing fulcrum. Therefore, the distance between the fixed tensioning post 622 and the movable tensioning sleeve 621 changes accordingly. Thus, when the position of the movable tensioning sleeve 621 changes, it is equivalent to a change in the location of each fulcrum, enabling the first tensioning assembly 62 to accommodate and restrain linkage ropes 3 of different lengths.

[0072] The preferred structural configuration of the first control component 61 in this embodiment is as follows: the first control component 61 includes a first control housing 611, a first control handle 612, and a guide component 613 (preferably a square, snap-fit ​​shape). The first control housing 611 is assembled onto the housing assembly 1 and forms a first chamber 6111 to provide space for accommodating components. An adjustment through hole 6112 is provided on the upper surface of the first control housing 611. A first guide groove 6113 is formed inside the adjustment through hole 6112. The guide component 613 is movably disposed in the first guide groove 6113 to provide motion guidance. Furthermore, the first control handle 612 has a control section 6121 and a threaded connection section 6122. The control section 6121 is located outside the first control housing 611. The user performs motion control through the control section 6121. The threaded connection section 6122 passes through the adjustment hole 6112, the guide nut, and the movable tension sleeve 621 from top to bottom, and then forms a threaded connection with the housing assembly 1 (which has a hole adapted to the threaded connection section 6122). It should be noted that the threaded connection section 6122 and the adjustment hole 6112, the guide nut, and the movable tension sleeve 621 are preferably in a non-fixed connection relationship. When adjusting the maximum distance 6L between the two ends of the linkage rope 3, first rotate the control section 6121 in the reverse direction to separate the threaded connection section 6122 from the housing assembly 1. Then, apply force to the control section 6121 in the adjustment direction (e.g., longitudinal movement) so that the threaded connection section 6122 moves together with the guide nut and the movable tension sleeve 621, achieving the position change function. When the adjustment is in place, rotate the control section 6121 in the forward direction to re-establish a fixed connection between the threaded connection section 6122 and the housing assembly 1, preventing unnecessary displacement of the movable tension sleeve 621 (mainly referring to movement caused by the linkage rope 3). It should be noted that the length of the adjustment through hole 6112 is greater than the length of the threaded connection section 6122, thereby providing sufficient adjustment length.

[0073] Optionally, the adjustment through hole 6112 and the linkage rope 3 are not parallel, so that the movement path of the movable tensioning sleeve 621 and the linkage rope 3 are staggered. For example, the adjustment through hole 6112 is arranged longitudinally, and the linkage rope 3 is arranged laterally, with the two having an orthogonal point 6a in physical space. When the movable tensioning sleeve 621 is adjusted away from the orthogonal point 6a, it will restrain more of the linkage rope 3, thereby reducing the maximum distance 6L between the two ends of the linkage rope 3; when the movable tensioning sleeve 621 is adjusted close to the orthogonal point 6a, it will release more of the linkage rope 3, thereby expanding the maximum distance 6L between the two ends of the linkage rope 3.

[0074] Preferably, the first chamber 6111 has a first port 6114 and a second port 6115, and the linkage rope 3 enters and exits the first chamber 6111 through the first port 6114 and the second port 6115, so that the linkage rope 3 can pass through the first chamber 6111.

[0075] Preferably, the first tensioning component 62 adopts a symmetrical distributed structure to balance the force, making the restraining effect on the linkage rope 3 more stable and reliable. Specifically, there is one movable tensioning sleeve 621 located in the middle of the first chamber 6111, and two fixed tensioning columns 622 are symmetrically distributed on both sides of the movable tensioning sleeve 621. The fixed tensioning columns 622 are fixedly connected to the first control housing 611 by a first fastener 63 (preferably a screw).

[0076] On the other hand, the cross-sectional area of ​​the guide member 613 is larger than the cross-sectional area of ​​the movable tension sleeve 621; thus, the linkage rope 3 contacts the outer wall of the movable tension sleeve 621, and the lower end face of the guide member 613 can contact the linkage rope 3 and form a limiting fit to prevent the linkage rope 3 from shifting upward or even detaching from the first tensioning assembly 62.

[0077] Example 3

[0078] Based on the structure of Embodiment 1, this embodiment provides another preferred solution for the wire take-up and unwinding mechanism 6, which can also be considered as an alternative to Embodiment 2. (Refer to...) Figures 9-12 The details are as follows:

[0079] The take-up and unwinding mechanism 6 includes a second control component 71, a disc-shaped rotating component 72, and several winding tension posts 73. The second control component 71 drives the disc-shaped rotating component 72 to rotate and responds to user actions. These actions can be direct rotation or indirect actions that cause the disc-shaped rotating component 72 to rotate; no specific action is limited. The winding tension posts 73 are fixed to the disc-shaped rotating component 72. Multiple winding tension posts 73 are staggered along the initial direction of the linkage rope 3, forming a rope-passing space 7a. The linkage rope 3 is at least partially passed through the rope-passing space 7a, allowing it to pass through the disc-shaped rotating component 72. The winding tension posts 73 act on the linkage rope 3, restraining linkage ropes 3 of different lengths. The linkage ropes 3 abut against each winding tension post 73, providing support. Each of the winding tensioning columns 73 serves as a fulcrum with a variable position. Therefore, once the disc-shaped rotating component 72 rotates, the position of each winding tensioning column 73 changes accordingly. Thus, when the position of the winding tensioning column 73 changes, it is equivalent to the location of each fulcrum changing, so that the second tensioning component can realize the function of accommodating and restraining the linkage ropes 3 of different lengths.

[0080] Specifically, the second control component 71 includes a second control housing 711 and a second control knob 712. The second control knob 712 is fixedly connected to the disc-shaped rotating component 72, so that the disc-shaped rotating component 72 rotates together with the second control knob 712. A second chamber 7111 is formed in the second control housing 711 to provide space for placing components, and the disc-shaped rotating component 72 is located in the second chamber 7111. In addition, a rotating hole 7112 is provided on the second control housing 711, and the lower end of the disc-shaped rotating component 72 has a shaft portion 721. The shaft portion 721 extends into the rotating hole 7112 and forms a clearance fit, so that the disc-shaped rotating component 72 can rotate independently relative to the second control housing 711. At the same time, the cooperation between the rotating hole 7112 and the shaft portion 721 provides a limiting and guiding function for the movement of the disc-shaped rotating component 72.

[0081] Furthermore, the second control knob 712 has a handle section 7121 and a transmission section 7122. The handle section 7121 extends outside the second control housing 711 to allow user control. The transmission section 7122 is at least partially located in the second chamber 7111 to engage with the disc-shaped rotating member 72. Optionally, the second control housing 711 has a threaded hole 7113, and the outer wall of the transmission section 7122 has a threaded section 7123, which engages with the threaded hole 7113. The user controls the handle section 7121 to rotate the second control housing 711 to adjust the effective number of turns of the threaded section 7123 and the threaded hole 7113. During the adjustment process, the second control housing 711 can rotate together with the disc-shaped rotating component 72. Furthermore, when the operation of the handle section 7121 is stopped, there is a certain self-locking force between the threaded section 7123 and the threaded hole 7113, so that the disc-shaped rotating component 72 can stop rotating under the action of no external force, thus maintaining a stable position.

[0082] Optionally, the second control knob 712 is fixedly connected to the disc-shaped rotating component 72 by a second fastener 74, wherein the second fastener 74 is preferably a screw. Of course, other structures such as snap-fits can also be used to replace the second fastener 74 to achieve a fixed connection between the second control knob 712 and the disc-shaped rotating component 72.

[0083] Preferably, the bottom of the second control housing 711 is provided with a limiting flange 75, and the disc-shaped rotating member 72 is located inside the limiting flange 75. The limiting flange 75 limits the disc-shaped rotating member 72 to prevent it from disengaging. Further, the limiting flange 75 is arc-shaped and forms a second guide groove 751. The disc-shaped rotating member 72 has a guide block 722 that extends into the second guide groove 751. When the disc-shaped rotating member 72 rotates, the guide block 722 can move along the trajectory of the second guide groove 751, providing good motion guidance and enabling the disc-shaped rotating member 72 to rotate more stably along a preset trajectory.

[0084] It is worth noting that the other technical solutions of this utility model are all existing technologies, and therefore will not be described in detail.

[0085] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the concept of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An adjustable ground-distance rope-type locking device, comprising: The housing assembly (1) has a locking pin port (11); A locking pin assembly (2) is mounted at a locking pin port (11) and is movable relative to the locking pin port (11), and the locking pin assembly (2) has at least an unlocked position state (2a) and a locked position state (2b). Linkage rope (3), which is connected to the locking pin assembly (2) in a transmission manner; The unlocking component (4) acts on the locking pin component (2) through the linkage rope (3) so that the locking pin component (2) switches from the locked position state (2b) to the unlocked position state (2a); The reset component (5) acts on the locking pin component (2) so that the locking pin component (2) always has a tendency to switch to the locked position state (2b); Its features are, It also includes: The take-up and release mechanism (6) acts on the linkage rope (3) to reduce or increase the maximum distance (6L) between the two ends of the linkage rope (3).

2. The adjustable ground-distance rope-type locking device according to claim 1, characterized in that: The wire take-up and take-down mechanism (6) includes a first control component (61) and a first tensioning component (62); The first control member (61) is used to drive the first tensioning component (62) to move, and the first control member (61) responds to the user's operation. The first tensioning component (62) acts on the linkage rope (3) so that the first tensioning component (62) restrains the linkage rope (3) of different lengths.

3. The adjustable ground-distance rope-type locking device according to claim 2, characterized in that: The first tensioning assembly (62) includes a movable tensioning sleeve (621) and at least one fixed tensioning post (622); The first control component (61) includes a first control housing (611), a first control handle (612), and a guide component (613); The first control housing (611) is assembled on the housing assembly (1) and forms a first chamber (6111). An adjustment passage hole (6112) is provided on the upper end face of the first control housing (611). A first guide groove (6113) is formed on the inner side of the adjustment passage hole (6112). The guide member (613) is movably disposed in the first guide groove (6113). The first control handle (612) has a control section (6121) and a threaded connection section (6122). The control section (6121) is located outside the first control housing (611). The threaded connection section (6122) passes through the adjustment through hole (6112), the guide nut, and the movable tension sleeve (621) from top to bottom to form a threaded connection with the housing assembly (1). The length of the adjustment through hole (6112) is greater than the length of the threaded connection section (6122).

4. The adjustable ground-distance rope-type locking device according to claim 3, characterized in that: The adjustment through hole (6112) and the linkage rope (3) are not parallel, so that the movement path of the movable tension sleeve (621) and the linkage rope (3) are interleaved.

5. The adjustable ground-distance rope-type locking device according to claim 3, characterized in that: The first chamber (6111) has a first port (6114) and a second port (6115), and the linkage rope (3) enters and exits the first chamber (6111) through the first port (6114) and the second port (6115); There is one movable tension sleeve (621) located in the middle of the first chamber (6111), and there are two fixed tension columns (622) symmetrically distributed on both sides of the movable tension sleeve (621). The fixed tension columns (622) are fixedly connected to the first control housing (611) through the first fastener (63).

6. The adjustable ground-distance rope-type locking device according to claim 3, characterized in that: The cross-sectional area of ​​the guide member (613) is larger than the cross-sectional area of ​​the movable tensioning sleeve (621); The linkage rope (3) contacts the outer wall of the movable tension sleeve (621), and the lower end face of the guide member (613) can contact the linkage rope (3) and form a limiting fit.

7. The adjustable ground-distance rope-type locking device according to claim 1, characterized in that: The winding and unwinding mechanism (6) includes a second control component (71), a disc-shaped rotating component (72), and several winding tensioning columns (73); The second control member (71) is used to drive the disc-shaped rotating member (72) to rotate, and the second control member (71) responds to the user's operation. The winding tension column (73) is fixed on the disc-shaped rotating component (72). The multiple winding tension columns (73) are staggered with each other along the initial direction of the linkage rope (3) and form a rope threading space (7a). The linkage rope (3) is at least partially threaded in the rope threading space (7a). The winding tension column (73) acts on the linkage rope (3) so that the winding tension column (73) restrains the linkage rope (3) of different lengths.

8. The adjustable ground-distance rope-type locking device according to claim 7, characterized in that: The second control component (71) includes a second control housing (711) and a second control knob (712). The second control knob (712) is fixedly connected to the disc-shaped rotating component (72) so that the disc-shaped rotating component (72) and the second control knob (712) rotate together. The second control housing (711) has a second chamber (7111) formed therein, the disc-shaped rotating member (72) is located in the second chamber (7111), and the second control housing (711) has a rotating hole (7112) formed therein. The lower end of the disc-shaped rotating member (72) has a shaft (721), which extends into the rotating hole (7112) and forms a clearance fit. The second control knob (712) has a handle section (7121) and a transmission section (7122), the handle section (7121) extending to the outside of the second control housing (711), and the transmission section (7122) being at least partially located in the second chamber (7111). The second control housing (711) is provided with a threaded hole (7113), and the outer wall of the transmission section (7122) is provided with a threaded section (7123), which forms a threaded connection with the threaded hole (7113).

9. The adjustable ground-distance rope-type locking device according to claim 8, characterized in that: The second control knob (712) is fixedly connected to the disc-shaped rotating component (72) by the second fastener (74).

10. The adjustable ground-distance rope-type locking device according to claim 8, characterized in that: The bottom of the second control housing (711) is provided with a limiting flange (75), and the disc-shaped rotating component (72) is located inside the limiting flange (75); The limiting flange (75) is arc-shaped and has a second guide groove (751). The disc-shaped rotating member (72) has a guide block (722) that extends into the second guide groove (751). When the disc-shaped rotating member (72) rotates, the guide block (722) can move along the trajectory of the second guide groove (751).

Citation Information

Patent Citations

  • Locking structure of carriage cover

    CN114458107A

  • Locking structure of carriage cover

    CN213199428U