Multi-size anti-theft cover clamping device

The design of the multi-size anti-theft cover clamping device solves the problem of insufficient applicability of clamping devices to workpieces of different specifications, realizes rapid installation and disassembly, and improves work efficiency.

CN224544338UActive Publication Date: 2026-07-24SICHUAN DENUKE TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN DENUKE TECHNOLOGY CO LTD
Filing Date
2025-08-20
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing clamping devices have limited application range when dealing with workpieces of different specifications, and are inconvenient to install and maintain, thus affecting work efficiency.

Method used

A multi-size anti-theft cover clamping device is designed, which adopts an adjustable clamping structure and an independent module connection method. Through the combination of clamping blocks and screws, it can achieve stable clamping and tightening of anti-theft covers of different sizes.

Benefits of technology

It improves the applicability and working efficiency of the clamping device, simplifies the installation and disassembly process, and reduces time costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of multi-size anti-theft cover clamping devices, belong to clamping equipment field, including shell, the shell includes shell and base, the shell bottom is connected with base, the base bottom side is equipped with clamping structure, the clamping structure includes locating seat and clamping block, the shell inside is connected with locating structure, the locating structure includes hand wheel and screw rod, the screw rod extends to shell top and is connected with hand wheel, the screw rod outside is equipped with rotating element, the rotating element outside is connected with tightening structure, the tightening structure includes connecting piece, sleeve rod and handle. Adjustable clamping structure is set, so that clamping device is suitable for different size anti-theft cover, improve the scope of application, device uses independent module and movable connection mode, so that device overall is convenient for quick installation and disassembly, to improve installation and maintenance work efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of clamping equipment, specifically a clamping device for multi-size anti-theft covers. Background Technology

[0002] A tamper-evident cap is a cap used to protect products and prevent unauthorized opening. It is commonly used on containers, packaging, or equipment. Its main function is to ensure the integrity and safety of products during transportation and storage. Tamper-evident caps are usually made of materials such as metal and plastic. Through irreversible designs such as one-time breakage, tear ring, and vacuum sealing, they ensure that the cap cannot be restored to its original state after being opened. During the use of tamper-evident caps, a clamping device is usually required. Its function is to ensure that the tamper-evident cap and the container form a firm, sealed connection that meets the anti-theft requirements through precise pressure or torque control.

[0003] An investigation revealed a utility model patent (authorization announcement number: CN222696913U) disclosing a clamping device. Its general description includes a positioning component fixed to a connecting rod along its axial direction and a pressing component that can slide along the connecting rod's axial direction. An elastic element exists between the positioning component and the pressing component. The pressing component has a first pressing inclined surface and a second pressing inclined surface. A pressing component has a first inclined surface and a second inclined surface. A clamping component includes a first clamping block and a second clamping block. A driving component is connected to the connecting rod. When the connecting rod rotates, it drives the first and second pressing inclined surfaces to abut against the workpiece. The connecting rod moves downwards along its axial direction, driving the first and second pressing inclined surfaces to press down on the workpiece. The first and second clamping blocks extend in opposite directions and abut against the workpiece, thus limiting the workpiece to the limiting surface of the worktable. The clamping device provided in this application clamps workpieces in multiple directions. Only one driving component is needed to cooperate with the worktable to achieve multi-directional clamping of the workpiece, improving production efficiency and reducing production costs.

[0004] The above technical solution uses the cooperation of components such as connecting rods, positioning parts, and pressing parts to achieve multi-directional synchronous clamping through a linkage mechanism, which improves production efficiency and reduces production costs. However, during the clamping process, the clamping device's application range is limited due to the different specifications of the workpieces. At the same time, the clamping device involves multiple positioning parts and pressing parts working together in the process of clamping the workpiece in multiple directions. The connection of multiple components makes it difficult to quickly install and maintain, thereby increasing the time and cost of disassembly and maintenance and affecting work efficiency.

[0005] Therefore, this utility model provides a multi-size anti-theft cover clamping device to solve the above problems. Utility Model Content

[0006] This utility model provides a multi-size anti-theft cover clamping device, which aims to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a multi-size anti-theft cover clamping device, comprising a housing, the housing comprising a shell and a base, the base being connected to the bottom of the shell, clamping structures being installed on both sides of the bottom of the base, the clamping structures comprising a positioning seat and a clamping block, a positioning structure being connected inside the shell, the positioning structure comprising a handwheel and a screw, the screw extending to the top of the shell and connected to the handwheel, a rotating component being sleeved on the outside of the screw, a tightening structure being connected to the outside of the rotating component, the tightening structure comprising a connecting component, a sleeve rod and a handle.

[0008] As a preferred technical solution of this application, a through hole is provided at the center of the top of the housing, the through hole extends to the bottom of the housing, the bottom of the housing is fixedly connected to the top of the base, and a positioning block is fixedly connected to the bottom of the base.

[0009] As a preferred technical solution of this application, the positioning seat is provided with two sets symmetrically distributed, the top of the positioning seat is slidably connected to the bottom of the base, and each positioning seat is provided with a clamping block inside. The clamping block is arc-shaped, and the center of the outer surface of the clamping block is fixedly connected to the connecting block. The connecting block is provided with a round hole inside, and the inner wall of the round hole is movably connected to one end of the push rod. The top of the push rod is fixedly connected with an end cap.

[0010] As a preferred technical solution of this application, the screw is rotatably connected inside the through hole, the screw extends to the top of the housing, and multiple sets of connecting plates are fixedly provided on the inner side of the handwheel, the connecting plates being fixedly adapted and connected to the outer wall of the screw.

[0011] As a preferred technical solution of this application, the positioning structure further includes a rotating component, which is sleeved on the outside of the screw and movably connected to the top center of the housing. Connecting components are installed on both sides of the outside of the rotating component.

[0012] As a preferred technical solution of this application, the connector includes a pin, and the two sides of the connector are movably connected to the rotating component through the pin, and a limit cover is fixedly connected to the top of the pin.

[0013] As a preferred technical solution of this application, the outer center position of the connector is fixedly connected to one end of the sleeve rod, and a handle is sleeved on the outside of the sleeve rod, and the outer surface of the handle is provided with anti-slip texture.

[0014] An adjustable clamping structure is provided. By installing clamping blocks at the bottom of the base, the position of the push rods can be adjusted according to the size of the anti-theft cover. The two sets of push rods move closer or further apart, causing the clamping blocks to clamp the outer sides of the anti-theft cover. This allows the clamping device to be used with anti-theft covers of different sizes, increasing its applicability. After adjustment, the positioning structure at the top rotates the screw upwards or downwards via a handwheel, causing the positioning block to abut against the top of the anti-theft cover. This facilitates the tightening of the anti-theft cover by the handle and rotating parts in the tightening structure. The device adopts independent modules and movable connections, making the entire device easy to install and disassemble quickly, thereby improving the efficiency of installation and maintenance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall design of this utility model; Figure 2 This is a schematic diagram of the overall bottom surface of this utility model; Figure 3 This is a schematic cross-sectional view of the present invention; Figure 4 This is a schematic diagram of the clamping structure of this utility model.

[0016] In the picture: 1. Outer shell; 101. Shell; 102. Base; 2. Clamping structure; 201. Positioning seat; 202. Clamping block; 203. Connecting block; 204. Push rod; 3. Positioning structure; 301. Handwheel; 302. Screw; 303. Rotating component; 4. Tightening structure; 401. Connecting component; 402. Sleeve rod; 403. Handle. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] This utility model provides a multi-size anti-theft cover clamping device, such as... Figure 1 and Figure 4As shown, the device includes an outer shell 1, which includes a housing 101 and a base 102. The base 102 is connected to the bottom of the housing 101. Clamping structures 2 are installed on both sides of the bottom of the base 102. The clamping structures 2 include a positioning seat 201 and a clamping block 202. A positioning structure 3 is connected inside the housing 101. The positioning structure 3 includes a handwheel 301 and a screw 302. The screw 302 extends to the top of the housing 101 and is connected to the handwheel 301. A rotating part 303 is sleeved on the outside of the screw 302. A tightening structure 4 is connected to the outside of the rotating part 303. The tightening structure 4 includes a connecting part 401, a sleeve 402, and a handle 403.

[0019] A through hole is provided at the center of the top of the housing 101, and the through hole extends to the bottom of the housing 101. The bottom of the housing 101 is fixedly connected to the top of the base 102, and a positioning block is fixedly connected to the bottom of the base 102.

[0020] The positioning seat 201 has two sets symmetrically distributed. The top of the positioning seat 201 is slidably connected to the bottom of the base 102. Each positioning seat 201 has a clamping block 202 inside. The clamping block 202 is an arc-shaped block. The center of the outer surface of the clamping block 202 is fixedly connected to the connecting block 203. The connecting block 203 has a round hole inside. The inner wall of the round hole is movably connected to one end of the push rod 204. The top of the push rod 204 is fixedly connected to an end cap.

[0021] The screw 302 is rotatably connected inside the through hole and extends to the top of the housing 101. Multiple sets of connecting plates are fixedly provided on the inner side of the handwheel 301, and the connecting plates are fixedly adapted to the outer wall of the screw 302.

[0022] The positioning structure 3 also includes a rotating component 303, which is sleeved on the outside of the screw 302 and is movably connected to the top center of the housing 101. Connecting components 401 are installed on both sides of the outside of the rotating component 303.

[0023] When in use, the device forms a support frame with the housing 101 and the base 102. The base 102 works with the clamping structure 2 to fix and clamp the cover. Depending on the size of the anti-theft cover, the positioning seat 201 and the clamping block 202 are adjusted to slide and adjust their positions at the bottom of the base 102, so that the arc-shaped contour of the clamping block 202 clamps the outer sides of the anti-theft cover. The connecting block 203 transmits external force through the push rod 204 to push the clamping block 202 to clamp or release the cover. After adjusting the position, the screw 302 is positioned. The handwheel 301 is rotated to rotate the screw 302 upward or downward so that the positioning block abuts against the top of the anti-theft cover to stably fix the anti-theft cover.

[0024] Furthermore, in order to improve the working efficiency of the device, such as Figure 2 and Figure 3As shown, the connector 401 includes a pin, and the two sides of the connector 401 are movably connected to the rotating part 303 through the pin. A limit cover is fixedly connected to the top of the pin.

[0025] The outer center of the connector 401 is fixedly connected to one end of the sleeve rod 402. A handle 403 is sleeved on the outside of the sleeve rod 402, and the outer surface of the handle 403 is provided with anti-slip texture.

[0026] When in use, the device uses the connector 401 to fix the tightening structure 4 and the rotating part 303 and achieve relative rotation. By controlling the rotation of the handle 403, the rotating part 303 is driven to move synchronously, and the force of the connector 401 is transmitted to the handle 403. The anti-slip texture increases the friction. After the user holds the handle, the user rotates the sleeve 402 to apply torque to tighten or loosen the anti-theft cover. The device uses the handwheel 301 to position the clamping block 202 at the bottom. The clamping block 202 is suitable for different sizes of covers. The tightening structure 4 provides tightening torque, thereby realizing the clamping operation of the anti-theft cover.

[0027] Working principle: By placing the anti-theft cover between two symmetrically distributed clamping structures 2 at the bottom of the base 102, the distance between the two sets of clamping blocks 202 can be adjusted by sliding positioning seat 201 to accommodate anti-theft covers of different sizes. The arc-shaped clamping block 202 is linked to the push rod 204 through the connecting block 203. Pushing the end cap on the top of the push rod 204 can control the clamping or loosening of the clamping block 202, realizing the initial fixation of the anti-theft cover. Rotating the handwheel 301 drives the screw 302 to rotate. Since the screw 302 is rotatably connected to the through hole on the top of the housing 101, the positioning block abuts against the top of the anti-theft cover to enhance the stable fixation. By controlling the anti-slip texture of the handle 403, the rotation of the rotating part 303 applies circumferential force to the anti-theft cover, realizing the tightening or loosening operation, and completing the clamping work of the anti-theft cover. The device adopts independent modules and movable connection method, which makes the whole device easy to install and disassemble quickly, thereby improving the efficiency of installation and maintenance work.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A multi-size anti-theft cover clamping device, characterized in that: The device includes an outer shell (1), which includes a housing (101) and a base (102). The bottom of the housing (101) is connected to the base (102). Clamping structures (2) are installed on both sides of the bottom of the base (102). The clamping structure (2) includes a positioning seat (201) and a clamping block (202). The housing (101) is connected to a positioning structure (3). The positioning structure (3) includes a handwheel (301) and a screw (302). The screw (302) extends to the top of the housing (101) and is connected to the handwheel (301). A rotating part (303) is sleeved on the outside of the screw (302). A tightening structure (4) is connected on the outside of the rotating part (303). The tightening structure (4) includes a connector (401), a sleeve (402), and a handle (403).

2. The multi-size anti-theft cover clamping device according to claim 1, characterized in that: A through hole is provided at the center of the top of the housing (101), and the through hole extends to the bottom of the housing (101). The bottom of the housing (101) is fixedly connected to the top of the base (102), and a positioning block is fixedly connected to the bottom of the base (102).

3. The multi-size anti-theft cover clamping device according to claim 1, characterized in that: The positioning seat (201) is provided in two symmetrically distributed sets. The top of the positioning seat (201) is slidably connected to the bottom of the base (102). Each positioning seat (201) is provided with a clamping block (202). The clamping block (202) is an arc-shaped block. The center of the outer surface of the clamping block (202) is fixedly connected to the connecting block (203). The connecting block (203) is provided with a round hole. The inner wall of the round hole is movably connected to one end of the push rod (204). The top of the push rod (204) is fixedly connected with an end cap.

4. The multi-size anti-theft cover clamping device according to claim 1, characterized in that: The screw (302) is rotatably connected inside the through hole. The screw (302) extends to the top of the housing (101). Multiple sets of connecting plates are fixedly provided on the inner side of the handwheel (301). The connecting plates are fixedly adapted to the outer wall of the screw (302).

5. The multi-size anti-theft cover clamping device according to claim 1, characterized in that: The positioning structure (3) also includes a rotating component (303), which is sleeved on the outside of the screw (302) and movably connected to the top center of the housing (101). Connecting components (401) are installed on both sides of the outside of the rotating component (303).

6. The multi-size anti-theft cover clamping device according to claim 1, characterized in that: The connector (401) includes a pin, and the two sides of the connector (401) are movably connected to the rotating part (303) through the pin. A limit cover is fixedly connected to the top of the pin.

7. The multi-size anti-theft cover clamping device according to claim 1, characterized in that: The outer center of the connector (401) is fixedly connected to one end of the sleeve (402), and a handle (403) is sleeved on the outside of the sleeve (402). The outer surface of the handle (403) is provided with anti-slip texture.