A joint mechanism for an elastic cord

Abstract

The utility model relates to the technical field of the joint mechanism of elastic rope, concretely to a joint mechanism of elastic rope, which comprises a joint mechanism body, one end of the joint mechanism body is provided with a connecting groove, a plurality of extension outlets are provided on the top outer side of the connecting groove of the joint mechanism body, the extension outlets penetrate through the joint mechanism body, and elastic connecting blocks are connected to the extension outlets, the utility model has the beneficial effects that when the elastic rope is connected with the joint mechanism body, the end of the elastic rope is inserted into the connecting groove provided at one end of the joint mechanism body, then the threaded sleeve ring is screwed, the threaded sleeve ring is gradually screwed onto the threaded part provided outside the other end of the joint mechanism body through the internal thread, the threaded part at the end of the joint mechanism body is fixed through the threaded connection, and when the threaded part is screwed, the threaded sleeve ring is gradually extruded through the arc surface on the inner side of the top of the elastic connecting block.

Description

Technical Field

[0001] This utility model relates to the technical field of elastic rope splicing mechanisms, specifically to an elastic rope splicing mechanism. Background Technology

[0002] Elastic ropes (also known as elastic tension ropes or elastic pull ropes) are widely used in fitness and rehabilitation, binding and fixation, toys, and industrial shock absorption. Their ends must form a reliable connection with external components such as hooks, handles, and mounting bases to convert elastic deformation into usable tensile or cushioning force.

[0003] Currently, existing connection methods are mainly divided into four categories: Knotting Fixing: Knot the rope itself or insert it into the cavity after knotting the rope end, relying on the friction between ropes and between the rope and the cavity wall to prevent loosening; Hot Press Coating: First, put a thermoplastic coating on the rope end, then heat the mold to melt the coating and solidify it at the same time with the rope and the built-in metal parts. After cooling, it forms an integrated "rope-coating-metal" end; Metal Clip (Aluminum Sleeve, Copper Sleeve, or Steel Sleeve): Insert the rope end into the perforated metal sleeve, and then use hydraulic or mechanical pressing to plastically deform the metal sleeve, thereby radially pressing the rope; Simple Plastic Buckle: Two mating plastic shells with short barbs or teeth inside, which are closed by self-tapping screws or buckles, allowing the short barbs to bite into the rope surface.

[0004] However, these connection methods have the following drawbacks: Insufficient connection strength: They are prone to slippage or breakage under high-frequency tension or high-load use, posing safety hazards; Complex assembly: Some structures require special tools or hot-pressing equipment, which is not conducive to users replacing or repairing them themselves; Poor versatility: Elastic ropes of different diameters or materials are difficult to be compatible with the same joint; Short service life: There is stress concentration between the joint and the rope body, which is prone to wear or fatigue breakage after long-term use.

[0005] Therefore, there is an urgent need for an elastic rope joint mechanism that is simple in structure, reliable in connection, highly adaptable, and easy to assemble and disassemble. Utility Model Content

[0006] The purpose of this invention is to provide a joint mechanism for elastic ropes to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a connector mechanism body, one end of which is provided with a connecting groove, and multiple sets of protrusions are provided on the outer side of the top of the connecting groove. The protrusions penetrate the connector mechanism body and are elastically connected to a telescopic block. A pressing block is provided in the middle of the bottom of the telescopic block, and multiple sets of pressing cones are provided on both sides of the bottom of the pressing block.

[0008] Preferably, the other end of the joint mechanism body is hinged to a hinge ball, and a hook is connected to the middle of the outer side of the hinge ball, allowing the hinge ball to rotate via the hook.

[0009] Preferably, support plates are provided on both sides of the bottom of the protrusion, the support plates are positioned above the connecting groove, and springs are provided on the top of the support plates. The bottom of the springs is connected to the top surface of the support plates, and the top of the springs is connected to both sides of the bottom of the telescopic block. The springs can drive the telescopic block to extend and retract.

[0010] Preferably, the clamping block at the bottom of the telescopic block can pass through the gap between the inner sides of the two sets of support plates, and the inner top side of the telescopic block is set as an arc surface.

[0011] Preferably, the connector mechanism body has a threaded portion around the outer perimeter of the connecting groove, and the thread of the threaded collar is located on the inner ring of the threaded collar, so that the threaded collar can be threadedly connected to the threaded portion.

[0012] Preferably, the connector mechanism body is provided with a limiting ring at one end of the connecting groove. The limiting ring can limit the threaded collar and prevent the threaded collar from falling off the connector mechanism body.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This invention discloses a joint mechanism for elastic ropes. When connecting the elastic rope to the joint mechanism body, one end of the elastic rope is first inserted into a connecting groove at one end of the joint mechanism body. Then, by screwing on a threaded collar, the threaded collar is gradually screwed onto the threaded portion at one end of the joint mechanism body through its inner thread. The threaded collar is then fixed to the threaded portion at one end of the joint mechanism body. Simultaneously, as the threaded collar is screwed onto the threaded portion, it gradually compresses the telescopic block through the arc surface on the inner side of the top of the telescopic block. This causes the telescopic block to lower the pressure block connected at the bottom, allowing the pressure block at the bottom of the telescopic block to insert into the connecting groove. The clamping block is positioned above the connecting rope in the connecting groove, pressing the connecting rope tightly into the groove and securing the connection between the connecting rope and the main body of the connector mechanism. Further, as the clamping block descends, the clamping cones on both sides of the bottom of the clamping block engage with the elastic rope, preventing loosening and the elastic rope from falling out of the connecting groove. When removing the elastic rope from the connecting groove, simply reverse the rotation of the threaded collar to move it to the rear end of the threaded section. At this point, the spring at the top of the support plate will spring the telescopic block up and extend it from above the outlet, resetting the telescopic block and thus releasing the clamping block from pressing the elastic rope. The elastic rope can then be pulled out of the connecting groove. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2This is a schematic cross-sectional view of the present invention. Figure 3 This is a cross-sectional view of another aspect of the present invention.

[0015] In the figure: 1. Connecting groove, 2. Hinge ball, 3. Hook, 4. Protrusion, 5. Support plate, 6. Spring, 7. Telescopic block, 8. Pressing block, 9. Pressing cone, 10. Threaded part, 11. Threaded collar, 12. Limiting ring. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] Please see Figures 1 to 3 This utility model provides a technical solution: a connector mechanism body 1, one end of which is provided with a connecting groove 2, and multiple sets of protrusions 5 are provided on the outer side of the top of the connecting groove 2. The protrusions 5 penetrate the connector mechanism body 1 and are elastically connected to a telescopic block 8. A pressing block 9 is provided in the middle of the bottom of the telescopic block 8, and multiple sets of pressing cones 10 are provided on both sides of the bottom of the pressing block 9. The pressing cones 10 on both sides of the bottom of the pressing block 9 are driven into the elastic rope by the descent of the pressing block 9 to prevent the clamping from loosening and causing the elastic rope to fall out of the connecting groove 2.

[0018] The other end of the connector mechanism body 1 is hinged to a hinge ball 3, and a hook 4 is connected to the middle of the outer side of the hinge ball 3. The hinge ball 3 can rotate through the hook 4. Support plates 6 are provided on both sides of the bottom of the extension 5. The support plates 6 are located above the connecting groove 2. A spring 7 is provided on the top of the support plate 6. The bottom of the spring 7 is connected to the top surface of the support plate 6. The top of the spring 7 is connected to the bottom sides of the telescopic block 8. The spring 7 can drive the telescopic block 8 to extend and retract. The spring 7 uses its elastic force to lift the telescopic block 8 and extend it from the top of the extension 5, resetting the telescopic block 8, thereby canceling the pressure of the clamping block 9 on the elastic rope.

[0019] The bottom clamping block 9 of the telescopic block 8 can pass through the gap between the inner sides of the two sets of support plates 6, and the top inner side of the telescopic block 8 is set as an arc surface; the threaded collar 12 gradually squeezes the telescopic block 8 through the arc surface of the top inner side of the telescopic block 8, so that the telescopic block 8 drives the bottom connected clamping block 9 to descend.

[0020] The connector body 1 has a threaded portion 11 around the outer periphery of the connecting groove 2. The thread of the threaded collar 12 is located on the inner ring of the threaded collar 12, and the threaded collar 12 can be threadedly connected to the threaded portion 11. The connector body 1 has a limiting ring 13 at one end of the connecting groove 2. The limiting ring 13 can limit the threaded collar 12 and prevent the threaded collar 12 from falling off the connector body 1.

[0021] In actual use, when connecting the elastic rope to the connector mechanism body 1, first insert one end of the elastic rope into the connecting groove 2 at one end of the connector mechanism body 1. Then, by screwing the threaded collar 12, the threaded collar 12 gradually screws onto the threaded part 11 at one end of the connector mechanism body 1 through its inner thread. It is then fixed to the threaded part 11 at one end of the connector mechanism body 1 through the threaded connection. At the same time as the threaded collar 12 screws onto the threaded part 11, the threaded collar 12 gradually presses against the telescopic block 8 through the arc surface on the inner side of the top of the telescopic block 8, causing the telescopic block 8 to drive the bottom-connected pressing block 9 to descend, so that the pressing block 9 at the bottom of the telescopic block 8 is inserted into the connecting groove 2 and held against the connecting groove 2. Above the connecting rope in groove 2, the connecting rope is pressed tightly into the connecting groove 2, fixing the connection between the connecting rope and the connector mechanism body 1. Further, as the pressing block 9 descends, the pressing cones 10 on both sides of the bottom of the pressing block 9 are driven into the elastic rope by the descent of the pressing block 9, preventing the clamping from loosening and causing the elastic rope to fall out of the connecting groove 2. When the elastic rope is removed from the connecting groove 2, simply reverse the screw ring 12 to move the screw ring 12 to the rear end of the threaded part 11. At this time, the spring 7 at the top of the support plate 6 will spring up the telescopic block 8 through the elastic force, extending it from above the extension port 5, resetting the telescopic block 8, thereby canceling the pressing block 9 on the elastic rope, and then the elastic rope can be pulled out from the connecting groove 2.

[0022] Although the illustrative specific embodiments of this application have been described above to enable those skilled in the art to understand this application, this application is not limited to the scope of the specific embodiments. For those skilled in the art, all applications utilizing the concept of this application are protected as long as various variations are within the spirit and scope of this application as defined and determined by the appended claims.

Claims

1. A joint mechanism for an elastic rope, characterized in that: include: The connector mechanism body (1) has a connecting groove (2) at one end. The connector mechanism body (1) has multiple sets of protrusions (5) on the outer side of the top of the connecting groove (2). The protrusions (5) penetrate the connector mechanism body (1). The extension block (8) is elastically connected in the extension (5). The middle of the bottom of the extension block (8) is provided with a pressing block (9). Multiple sets of pressing cones (10) are provided on both sides of the bottom of the pressing block (9).

2. The joint mechanism of an elastic rope according to claim 1, characterized in that: The other end of the connector mechanism body (1) is hinged to a hinge ball (3), and a hook (4) is connected to the middle of the outer side of the hinge ball (3). The hinge ball (3) can rotate through the hook (4).

3. The joint mechanism of an elastic rope according to claim 2, characterized in that: Support plates (6) are provided on both sides of the bottom of the protrusion (5). The support plates (6) are located above the connecting groove (2). A spring (7) is provided on the top of the support plate (6). The bottom of the spring (7) is connected to the top surface of the support plate (6). The top of the spring (7) is connected to both sides of the bottom of the telescopic block (8). The spring (7) can drive the telescopic block (8) to extend and retract.

4. The joint mechanism of an elastic rope according to claim 3, characterized in that: The pressing block (9) at the bottom of the telescopic block (8) can pass through the gap between the two sets of support plates (6) and the inner side of the top of the telescopic block (8) is set as an arc surface.

5. The joint mechanism of an elastic rope according to claim 4, characterized in that: The connector mechanism body (1) has a threaded part (11) around the outside of the connecting groove (2), and the thread of the threaded collar (12) is set in the inner ring of the threaded collar (12), and the threaded collar (12) can be threadedly connected to the threaded part (11).

6. The joint mechanism of an elastic rope according to claim 5, characterized in that: The connector body (1) has a limiting ring (13) at one end of the connecting groove (2). The limiting ring (13) can limit the threaded collar (12) and prevent the threaded collar (12) from falling off the connector body (1).

Images