A self-locking U-shaped clamp convenient to assemble and disassemble

Abstract

The utility model relates to the technical field of the clamp, disclose a kind of self-locking U-shaped clamp convenient to assemble and disassemble, including clamp body and pipe body;The symmetrically communicating through hole and sliding hole of clamp body both ends are equipped, the card block with inclined surface is horizontally installed in through hole, the unlocking lever in sliding hole vertically extends into through hole and is slidably matched with the inclined surface of card block, and the top end of clamp body is connected with unlocking lever by elastic element;Pipe body both ends are equipped with clamping groove, and clamp body is fixed by the clamping of card block and clamping groove.It is triggered that card block is automatically embedded clamping groove to complete self-locking when pipe body is clamped, and card block is synchronously driven to separate from clamping groove when unlocking lever is pressed during disassembly, and component is automatically reset after loosening.The utility model solves the problem that traditional clamp is easy to loosen and has low assembling and disassembling efficiency, does not need special tool, and is efficient and smooth during assembling and disassembling, avoids component damage and can be reused, and is suitable for high-frequency operation and maintenance scene.

Description

Technical Field

[0001] This utility model relates to the field of clamp technology, and in particular to a self-locking U-shaped clamp that is easy to install and remove. Background Technology

[0002] Traditional U-shaped clamps mostly use bolt tightening for fixing. Their fixing reliability depends entirely on the friction force generated after the bolts are pre-tightened. This type of fixing structure lacks effective axial and circumferential limiting design. Under conditions such as vibration and impact, axial slippage or circumferential rotation can easily occur, leading to loosening of the fixing and making it difficult to guarantee the stability of long-term use.

[0003] Traditional U-shaped clamps require the use of specialized tools such as wrenches to gradually tighten the bolts to complete the fixation. When disassembling, the bolts need to be loosened in the opposite direction, which is a cumbersome operation process and highly dependent on tools. Although some existing technologies have designed U-shaped clamps with self-locking functions, which reduces the tool dependence and alignment difficulty during installation, they still require a large external force or special auxiliary tools to unlock during disassembly. This not only fails to improve the overall disassembly and assembly efficiency, but may also cause damage to the clamp body or the fastened part during the unlocking process. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a self-locking U-shaped clamp that is easy to install and remove, aiming to improve the problem that the existing U-shaped clamps have low installation and removal efficiency and may damage the equipment.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a self-locking U-shaped clamp that is easy to install and disassemble, comprising a clamp body and a tube body. The clamp body has symmetrical through holes at both ends and sliding holes at both ends, the sliding holes communicating with the through holes. A locking block is horizontally slidably installed within the through hole, the upper end of the locking block having an inclined surface. An unlocking rod is slidably connected within the sliding hole, the unlocking rod extending vertically from the sliding hole into the through hole and forming a sliding fit with the inclined surface at the upper end of the locking block. An elastic element is fixedly connected to the top of the clamp body, the other end of the elastic element being fixedly connected to the unlocking rod. The tube body has slots at both ends, and the clamp body connects to the tube body through the engagement of the locking block and the slots.

[0006] Preferably, the card block includes an integrally connected locking part and unlocking part. The inner side of the locking part is arc-shaped to fit the card slot, and the inner side of the unlocking part is provided with an inclined surface that slopes downward from the outside to the inside. The card block adopts an integrally formed structure of locking and unlocking parts, which simplifies the number of parts and improves the overall structural strength and load-bearing capacity. The arc-shaped structure of the locking part fits precisely with the card slot, which not only enhances the sealing of the fixed connection, but also improves the fitting stability and avoids local stress concentration. The inclined surface design of the unlocking part provides a smooth force transmission path for the unlocking action, ensuring that the unlocking process is efficient and stable.

[0007] Preferably, a spring is fixedly installed on the outer side of the locking part, and a mounting plate is fixedly connected to the other end of the spring. The mounting plate is detachably installed on the clamp body. A damping rod is provided inside the spring, and the two ends of the damping rod are fixedly connected to the locking part and the mounting plate, respectively. The detachable mounting plate design provides convenient conditions for the inspection and replacement of the spring and the damping rod, and reduces maintenance costs.

[0008] Preferably, a slider is fixedly installed at the bottom of the card block, and a groove is fixedly provided in the through hole. The card block moves horizontally in the through hole through the sliding connection between the slider and the groove. The slider and the groove form a sliding guide mechanism, which provides a stable horizontal movement trajectory for the card block, avoids deviation or jamming during the movement of the card block, and ensures the smoothness of locking and unlocking actions.

[0009] Preferably, the unlocking rod is a U-shaped rod, and a pressing block is fixedly provided at the top of the unlocking rod; directly pressing the arc-shaped structure at the top of the U-shaped unlocking rod can easily cause slippage. The setting of the pressing block can improve the stability and reliability of the pressing operation, effectively prevent hand slippage, ensure smooth unlocking action, and thus improve unlocking efficiency.

[0010] Preferably, both ends of the unlocking rod are provided with inclined surfaces, and the inclined surfaces of the unlocking rod and the card block are inclined at the same angle, which can ensure good contact and fit between the two, avoid damage to the card block and the unlocking rod, and achieve efficient conversion of vertical pressing force into horizontal pushing force.

[0011] Preferably, the elastic element is a spring, and a damping rod is provided inside the spring. The two ends of the damping rod are fixedly connected to the clamp body and the unlocking rod, respectively. The spring provides a stable reset driving force for the unlocking rod, ensuring that the unlocking rod automatically resets to the initial standby position after the unlocking operation is completed. The built-in damping rod can effectively suppress the shaking of the unlocking rod during the reset process, thereby improving the stability and motion accuracy of the structure.

[0012] Preferably, the opening of the clamp body is fixedly provided with a flared mouth that gradually narrows from the outside to the inside; the flared mouth structure provides precise guidance for pipe installation and improves installation efficiency; at the same time, it can buffer the contact impact force between the pipe body and the clamp body, and avoid damage to the components due to collision.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model achieves precise engagement between the locking part of the clamp and the slot of the pipe body, realizing dual axial and circumferential limiting. The locking part adopts an arc-shaped design that fits the slot, combined with the pre-tightening force of the spring and the stabilizing effect of the built-in damping rod, making the connection between the clamp and the pipe body tighter. It can effectively resist the influence of vibration, impact and other working conditions, avoid axial slippage or circumferential rotation, and significantly improve the fixing reliability.

[0015] 2. In this utility model, the clamp does not require special tools or additional fasteners during installation. The spring is triggered when the pipe body is inserted, and the locking part automatically embeds into the slot to achieve self-locking. The guiding effect of the flared mouth further improves the smoothness of installation. When disassembling, simply press down on the unlocking rod, and the inclined surface will drive the two end blocks to disengage from the slot. No large external force is required, and the clamp body or pipe body will not be damaged. After unlocking, the components can automatically reset, which is convenient for reuse and effectively improves the overall disassembly and assembly efficiency. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the U-shaped clamp in the locked state;

[0017] Figure 2 This is a cross-sectional view of the U-shaped clamp in the unlocked state;

[0018] Figure 3 This is a perspective view of the present utility model;

[0019] Figure 4 Exploded views of the clamp body and the pipe body;

[0020] Figure 5 This is a schematic diagram of the clamp body structure after the unlocking components have been removed;

[0021] Figure 6 A structural diagram of the unlocking component;

[0022] Figure 7 This is a connection diagram of the unlock block;

[0023] Figure 8 An exploded view of the clamp block, mounting plate, and clamp body.

[0024] Legend:

[0025] 1. Clamp body; 10. Through hole; 11. Clamping block; 111. Locking part; 112. Unlocking part; 12. Unlocking rod; 121. Pressing block; 13. Spring 1; 14. Mounting plate; 15. Slider; 16. Slide groove; 17. Slide hole; 18. Flared mouth; 19. Elastic element; 2. Tube body; 21. Clamping groove. Detailed Implementation

[0026] 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.

[0027] Example 1

[0028] Reference Figures 1-8 This utility model provides an embodiment of a self-locking U-shaped clamp that is easy to install and disassemble, comprising a clamp body 1 and a tube body 2. The clamp body 1 has through holes 10 symmetrically opened at both ends, and sliding holes 17 opened at both ends of the clamp body 1, which communicate with the through holes 10. A locking block 11 is horizontally slidably installed in the through hole 10, and the upper end of the locking block 11 is provided with an inclined surface. An unlocking rod 12 is slidably connected in the sliding hole 17, and the unlocking rod 12 extends vertically from the sliding hole 17 into the through hole 10, and forms a sliding fit with the inclined surface at the upper end of the locking block 11. An elastic element 19 is fixedly connected to the top end of the clamp body 1, and the other end of the elastic element 19 is fixedly connected to the unlocking rod 12. The tube body 2 has slots 21 opened at both ends, and the clamp body 1 is connected to the tube body 2 by the engagement of the locking block 11 with the slots 21.

[0029] The locking block 11 includes an integrally connected locking part 111 and unlocking part 112. The inner side of the locking part 111 is arc-shaped to fit the slot 21, and the inner side of the unlocking part 112 is provided with an inclined surface that slopes downward from the outside to the inside. A spring 13 is fixedly installed on the outer side of the locking part 111, and a mounting plate 14 is fixedly connected to the other end of the spring 13. The mounting plate 14 is detachably installed on the clamp body 1. A damping rod is provided inside the spring 13, and the two ends of the damping rod are fixedly connected to the locking part 111 and the mounting plate 14, respectively. The bottom of the locking block 11 A slider 15 is fixedly installed, and a groove 16 is fixedly provided in the through hole 10. The locking block 11 moves horizontally in the through hole 10 through the sliding connection between the slider 15 and the groove 16. The unlocking rod 12 is a U-shaped rod, and a pressing block 121 is fixedly provided at the top of the unlocking rod 12. Both ends of the unlocking rod 12 are provided with inclined surfaces, and the inclined surfaces of the unlocking rod 12 are at the same inclination angle as the inclined surfaces of the locking block 11. The elastic element 19 is a spring, and a damping rod is provided inside the spring. The two ends of the damping rod are fixedly connected to the clamp body 1 and the unlocking rod 12, respectively.

[0030] In the initial state, spring 13 is in a pre-compressed state, with its pre-tightening force pointing towards the inside of the clamp body 1, continuously pushing the locking block 11 to the locking position inside the clamp body 1, with the locking part 111 extending out of the through hole 10; the locking block 11 is kept horizontal by the cooperation of the slider 15 and the slide groove 16. In use, the tube 2 is aligned with the inside of the clamp body 1 and inserted, the outer wall of the tube 2 contacts the arc-shaped surface of the locking part 111 of the locking block 11 and generates an outward squeezing force, which overcomes the pre-tightening force of spring 13, pushing the locking block 11 along the slider 15 and the slide groove 16, sliding horizontally away from the tube 2, the spring 13 is further compressed, and the damping rod contracts synchronously to ensure that the movement of the locking block 11 is smooth and without deviation. When the tube 2 is continuously inserted until the positions of the preset slots 21 at both ends of the tube 2 are completely aligned with the locking parts 111 of the locking block 11, the squeezing force of the tube 2 on the locking parts 111 disappears, the preload of the spring 13 is released, and the locking block 11 is pushed to slide horizontally back to the inside of the clamp body 1. The locking part 111 is precisely embedded in the slot 21, realizing the automatic self-locking fixation of the clamp body 1 and the tube 2 without the need for additional fasteners or special tools.

[0031] In the initial state, the elastic element 19 (spring) is in a pre-tensioned state with its pre-tension force pointing upwards, continuously supporting the unlocking rod 12 in a high position within the sliding hole 17. At this time, the inclined surfaces at the bottom of both ends of the unlocking rod 12 maintain a slight contact or a small gap with the inclined surface of the unlocking part 112 of the locking block 11, without interfering with the locking state of the locking block 11. When disassembly is required, simply press down on the pressing block 121 at the top of the unlocking rod 12. The applied downward force overcomes the pre-tension force of the elastic element 19 (spring), causing the unlocking rod 12 to slide vertically downwards along the sliding hole 17 of the clamp body 1. The elastic element 19 (spring) is compressed, and the built-in damping rod keeps the unlocking rod 12 moving vertically to prevent swaying or deviation. Since the unlocking rod 12 has a U-shaped structure, the inclined surfaces at both ends of the rod are at the same angle as the inclined surfaces of the unlocking part 112 of the locking block 11. When the unlocking rod 12 moves downward, the contact between the inclined surfaces converts the vertical pressing force into a horizontal outward pushing force, which synchronously drives the locking blocks 11 at both ends to slide outward along the slider 15 and the slide groove 16. The spring 13 is compressed again, the damping rod contracts synchronously, and the locking part 111 completely disengages from the slot 21 of the tube body 2. At this time, the tube body 2 loses the fixed constraint of the locking block 11 and the slot 21, and can be directly removed from the clamp body 1 with a light tap. The unlocking process does not require a large external force and will not damage the components.

[0032] After releasing the pressing block 121, the upward rebound force of the elastic element 19 overcomes the gravity of the unlocking rod 12, pushing the unlocking rod 12 to slide upward along the sliding hole 17 and return to the initial high position; at the same time, the inward pre-tightening force of the spring 13 is released again, causing the locking block 11 to slide horizontally in the opposite direction along the slider 15 and the sliding groove 16 towards the inside of the clamp body 1, and the locking part 111 returns to the locked and ready position inside the clamp body 1. The cooperation between the slider 15 and the sliding groove 16 ensures that the reset of each component is accurate and without deviation, and the entire structure automatically returns to the initial ready-to-install state, and the next installation operation can be carried out directly.

[0033] Example 2

[0034] Reference Figure 5 The clamp body 1 has a flared opening 18 that tapers from the outside in. When installing the pipe body 2, the tapering slope of the flared opening 18 forms a natural guide channel. The pipe body 2 can slide smoothly along the slope to the center of the clamp body 1 without precise alignment, guiding the pipe body 2 to quickly form a corresponding engagement with the locking part 111 of the clamp block 11, preventing the pipe body 2 from shifting or getting stuck. This structure can greatly reduce the difficulty of alignment during installation, simplify the operation process, and improve installation efficiency. At the same time, the tapering structure can buffer the contact impact force between the pipe body 2 and the clamp body 1, preventing the pipe body 2 or the clamp block 11 from being damaged by collision during installation, further ensuring assembly stability and component service life.

Claims

1. A self-locking U-shaped clamp that is easy to install and remove, comprising a clamp body (1) and a pipe body (2), characterized in that: The clamp body (1) has through holes (10) symmetrically opened at both ends, and sliding holes (17) are opened at both ends. The sliding holes (17) are connected to the through holes (10). A locking block (11) is horizontally slidably installed in the through hole (10). An inclined surface is provided at the upper end of the locking block (11). An unlocking rod (12) is slidably connected in the sliding hole (17). The unlocking rod (12) extends vertically from the sliding hole (17) into the through hole (10) and forms a sliding fit with the inclined surface at the upper end of the locking block (11). An elastic element (19) is fixedly connected to the top of the clamp body (1). The other end of the elastic element (19) is fixedly connected to the unlocking rod (12). The pipe body (2) has slots (21) at both ends. The clamp body (1) is connected to the pipe body (2) by the engagement of the clamp block (11) with the slot (21).

2. The self-locking U-shaped clamp for easy assembly and disassembly according to claim 1, characterized in that: The card block (11) includes a locking part (111) and an unlocking part (112) that are integrally connected. The inner side of the locking part (111) is an arc shape that fits the card slot (21), and the inner side of the unlocking part (112) is provided with an inclined surface that slopes downward from the outside to the inside.

3. The self-locking U-shaped clamp for easy assembly and disassembly according to claim 2, characterized in that: A spring (13) is fixedly installed on the outside of the locking part (111), and a mounting plate (14) is fixedly connected to the other end of the spring (13). The mounting plate (14) is detachably installed on the clamp body (1). A damping rod is provided inside the spring (13), and the two ends of the damping rod are fixedly connected to the locking part (111) and the mounting plate (14) respectively.

4. The self-locking U-shaped clamp for easy assembly and disassembly according to claim 1, characterized in that: The bottom of the card block (11) is fixedly installed with a slider (15), and a groove (16) is fixedly provided in the through hole (10). The card block (11) moves horizontally in the through hole (10) through the sliding connection between the slider (15) and the groove (16).

5. The self-locking U-shaped clamp for easy assembly and disassembly according to claim 1, characterized in that: The unlocking rod (12) is a U-shaped rod, and a pressing block (121) is fixedly provided at the top of the unlocking rod (12).

6. The self-locking U-shaped clamp for easy assembly and disassembly according to claim 1, characterized in that: Both ends of the unlocking rod (12) are provided with inclined surfaces, and the inclined surfaces of the unlocking rod (12) and the inclined surfaces of the card block (11) are at the same inclination angle.

7. The self-locking U-shaped clamp for easy assembly and disassembly according to claim 1, characterized in that: The elastic element (19) is a spring, and a damping rod is provided inside the spring. The two ends of the damping rod are fixedly connected to the clamp body (1) and the unlocking rod (12) respectively.

8. The self-locking U-shaped clamp for easy assembly and disassembly according to claim 1, characterized in that: The clamp body (1) has a bell mouth (18) that gradually narrows from the outside to the inside.

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