Rail rapid connection structure

Abstract

The utility model relates to a kind of track quick connection structure.It solves the technical problems of existing track connection structure, such as complexity, high cost etc.It includes the adapter of being sleeved between the outer side of two adjacent coaxial track bodies, the adapter two ends extend to the outer side of different track bodies respectively, the circumferential inner side of adapter is equipped with at least one axial extension setting and having the side opening of locking groove towards the outer side of track body, the movable wear of locking groove is equipped with extrusion rod, and the cross section of extrusion rod is non-circular and can rotate in the circumferential direction in locking groove under the action of external force, so that its outer side is in abutment with the outer side of track body.The advantage is that: extrusion rod can complete locking operation with adapter and track body by using hexagonal wrench, improve locking efficiency, ensure locking effect and reduce locking cost.The locking extrusion effect between extrusion rod and track body can be improved by locking convex part and outer convex locking surface.

Description

Technical Field

[0001] This utility model belongs to the technical field of rail connection equipment, specifically relating to a rapid rail connection structure. Background Technology

[0002] As a key component connecting the curtain track to the drive unit, pulley assembly, and other parts, the performance of the connector directly affects the smoothness and stability of the curtain's opening and closing. Currently, most connectors on the market have complex connection structures with the curtain track. To ensure a strong connection and precise curtain operation, they typically employ complex mechanical structures such as multi-component nesting and precision buckles. Furthermore, existing connection structures are overly complex in order to ensure connection stability, resulting in high connection costs, inconvenience for users to connect, and low connection efficiency. Summary of the Invention

[0003] The purpose of this invention is to address the above-mentioned problems by providing a rapid track connection structure.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A quick track connection structure includes a connector sleeved between the outer sides of two adjacent coaxially arranged track bodies. The two ends of the connector extend to the outer sides of different track bodies. The connector has at least one axially extending locking groove with a side opening facing the outer side of the track body on its inner circumferential side. A non-circular cross-section pressing rod is movably inserted into the locking groove and can rotate circumferentially within the locking groove under external force, thereby abutting its outer side against the outer side of the track body. The locking groove facilitates the placement of the pressing rod, and the side opening facilitates the pressing rod to press against the track body, ensuring that the pressing rod presses and locks the track body, and ensuring the connection stability between the track body and the connector.

[0005] In the aforementioned rapid rail connection structure, four locking grooves are respectively located at the four corners of the inner circumference of the connector, and the two ends of each locking groove axially penetrate the end of the connector. Two locking grooves are located on both sides of the track opening of the track body, and the other two locking grooves are located on both sides of the track body away from the track opening, ensuring the locking effect between the connector and the track body. By pressing the four corners of the track body with the compression rods located in the locking grooves at the four corners of the connector, the connection stability between the connector and the track body can be guaranteed.

[0006] In the aforementioned rapid rail connection structure, the compression rod is axially inserted into the locking groove and both ends of the compression rod do not extend beyond the end of the locking groove. This improves the overall aesthetics of the rail and facilitates the limiting of both ends of the compression rod, preventing the compression rod from shifting to the outside of the locking groove and ensuring the compression effect.

[0007] In the aforementioned rapid rail connection structure, the pressing rod has a locking protrusion extending from the side opening of the locking groove and abutting against the outer side of the rail body on its circumferential outer side. A rotation guide assembly is provided between the pressing rod and the locking groove. The rotation guide assembly can play a locking and guiding role for the pressing rod, thereby improving the locking efficiency. Furthermore, the locking protrusion can abut against the rail body as the pressing rod rotates, ensuring the locking effect of the pressing rod on the rail body.

[0008] In the aforementioned rapid rail connection structure, the outer side of the locking protrusion has an inclined guide surface that extends outward toward the outer side of the compression rod, and one side of the inclined guide surface has an outwardly convex locking surface that protrudes toward the outer side of the compression rod and is located on the side opening side of the locking groove. The inclined guide surface can guide the compression rod to rotate, and the outwardly convex locking surface can abut and lock against the outer side of the rail body, thereby improving the locking effect between the locking protrusion and the rail body.

[0009] In the aforementioned rapid rail connection structure, the rotating guide assembly includes a guide protrusion disposed on the side of the pressing rod away from the locking protrusion and extending along the axial direction of the pressing rod. The inner side of the locking groove away from the side opening has an arc-shaped guide groove corresponding to the guide protrusion. The length of the arc-shaped guide groove is greater than the width of the guide protrusion, and the guide protrusion is slidably disposed in the arc-shaped guide groove. The arc-shaped guide groove can limit the guide protrusion, thereby restricting the rotation angle of the pressing rod in the locking groove, improving locking efficiency, and ensuring locking effect.

[0010] In the aforementioned rapid rail connection structure, the locking groove has two symmetrically arranged arc-shaped guide surfaces, and the pressing rod has two rod arc-shaped surfaces on its outer circumference that correspond one-to-one with the arc-shaped guide surfaces and cooperate with each other. The locking protrusion is located between the two rod arc-shaped surfaces on their corresponding sides, and the guide protrusion is located between the two rod arc-shaped surfaces on their corresponding other sides. The arc-shaped guide surfaces and rod arc-shaped surfaces facilitate the pressing rod to rotate and lock in the locking groove, improving the locking efficiency of the pressing rod and ensuring the locking effect between the rail body and the connector.

[0011] In the aforementioned rapid rail connection structure, the extrusion rod is made of aluminum profile by extrusion, and the locking protrusion and the guide protrusion are integrally formed on the outside of the extrusion rod and extend along the axial direction of the extrusion rod, thereby improving the structural strength of the extrusion rod, the locking protrusion and the guide protrusion, increasing their service life, and ensuring the locking effect of the extrusion rod on the rail body.

[0012] In the aforementioned rapid rail connection structure, the pressing rod has an axially extending internal hexagonal hole on its inner circumferential side that can cooperate with an internal hexagonal wrench. The cooperation between the internal hexagonal wrench and the internal hexagonal hole allows the user to easily control the rotation and pressing of the pressing rod, thereby improving the locking efficiency of the pressing rod and ensuring the locking effect.

[0013] In the aforementioned rapid rail connection structure, the connector has several screw holes at both ends, each located on one side of the locking groove. The screw holes contain fixing screws, and the screw caps of the fixing screws abut against the end of the locking groove. The screw holes facilitate the fixing of the screws onto the connector. The screw caps can extend to the end of the pressing rod and limit the end of the pressing rod, effectively preventing the pressing rod from axially displacing from the locking groove and ensuring locking stability.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] 1. The clamping rod can be used with an Allen wrench to lock the connector to the track body, which improves locking efficiency, ensures locking effect and reduces locking cost.

[0016] 2. The locking protrusion and the outwardly convex locking surface can improve the locking and squeezing effect between the extrusion rod and the track body.

[0017] 3. The rotation efficiency of the extrusion rod in the locking groove can be improved by rotating the guide assembly, the arc-shaped guide surface, and the arc-shaped surface of the rod. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the connector in this utility model.

[0020] Figure 3 This is a schematic diagram of the extrusion rod in this utility model.

[0021] Figure 4 This is an application scenario diagram of this utility model.

[0022] In the diagram: 1. Track body; 2. Connector; 21. Locking groove; 211. Side opening; 212. Arc-shaped guide surface; 212. Screw hole; 22. Fixing screw; 23. Screw cap; 231. Pressing rod; 3. Locking protrusion; 31. Inclined guide surface; 32. Outwardly protruding locking curved surface; 33. Arc-shaped surface of rod; 34. Hexagonal socket; 35. Rotation guide assembly; 4. Guide protrusion; 41. Arc-shaped guide groove; 42. Hexagonal wrench; 5. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] like Figure 1 , Figure 2 , Figure 3 As shown, this quick track connection structure includes a connector 2 sleeved between the outer sides of two adjacent coaxially arranged track bodies 1. The connector 2 facilitates the fixed connection of the two track bodies 1, increasing the length of the track bodies 1. The two ends of the connector 2 extend to the outer sides of different track bodies 1. The connector 2 has at least one locking groove 21 with an axially extending side opening 211 facing the outer side of the track body 1. A non-circular cross-section pressing rod 3 is movably inserted into the locking groove 21 and can rotate circumferentially within the locking groove 21 under external force, so that its outer side abuts against the outer side of the track body 1. The locking groove 21 facilitates the placement of the pressing rod 3, and the side opening 211 facilitates the pressing rod 3 to press against the track body 1, ensuring that the pressing rod 3 presses and locks the track body 1, and ensuring the connection stability between the track body 1 and the connector 2.

[0025] Specifically, there are four locking grooves 21, which are respectively set on the four corners of the inner circumference of the connector 2. The two ends of the locking grooves 21 axially penetrate the ends of the connector 2. Two locking grooves 21 are set on both sides of the track opening of the track body 1, and the other two locking grooves 21 are set on both sides of the track body 1 away from the track opening, so as to ensure the locking effect between the connector 2 and the track body 1. The compression rods 3 set in the locking grooves 21 at the four corners of the connector 2 compress the four corners of the track body 1, which can ensure the connection stability between the connector 2 and the track body 1.

[0026] The compression rod 3 is axially inserted into the locking groove 21 and its two ends do not extend beyond the end of the locking groove 21. This improves the overall aesthetics of the track and makes it easier to limit the two ends of the compression rod 3, preventing the compression rod 3 from shifting to the outside of the locking groove and ensuring the compression effect.

[0027] like Figure 1 , Figure 2 , Figure 3 As shown, the pressing rod 3 has a locking protrusion 31 extending outward from the side opening 211 of the locking groove 21 and abutting against the outer side of the track body 1. A rotation guide assembly 4 is provided between the pressing rod 3 and the locking groove 21. The rotation guide assembly 4 can play a locking and guiding role for the pressing rod 3, thereby improving the locking efficiency. The locking protrusion 31 can abut against the track body 1 as the pressing rod 3 rotates, ensuring the locking effect of the pressing rod 3 on the track body 1.

[0028] Furthermore, the outer side of the locking protrusion 31 has an inclined guide surface 32 that extends outward toward the outer side of the pressing rod 3, and one side of the inclined guide surface 32 has an outwardly protruding locking surface 33 that protrudes toward the outer side of the pressing rod 3 and is located on the side opening 211 of the locking groove 21. The inclined guide surface 32 can guide the pressing rod 3 to rotate, and the outwardly protruding locking surface 33 can abut against and lock with the outer side of the track body 1, thereby improving the locking effect between the locking protrusion 31 and the track body 1.

[0029] The rotating guide assembly 4 includes a guide protrusion 41 disposed on the side of the extrusion rod 3 away from the locking protrusion 31 and extending along the axial direction of the extrusion rod 3. The inner side of the locking groove 21 away from the side opening 211 has an arc-shaped guide groove 42 corresponding to the guide protrusion 41. The length of the arc-shaped guide groove 42 is greater than the width of the guide protrusion 41, and the guide protrusion 41 is slidably disposed in the arc-shaped guide groove 42. The arc-shaped guide groove 42 can limit the guide protrusion 41, thereby limiting the rotation angle of the extrusion rod 3 in the locking groove 21, improving the locking efficiency, and ensuring the locking effect.

[0030] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the locking groove 21 has two symmetrically arranged arc-shaped guide surfaces 212, and the pressing rod 3 has two rod arc-shaped surfaces 34 on its outer circumference that correspond one-to-one with the arc-shaped guide surfaces 212 and cooperate with each other. The locking protrusion 31 is located between the two rod arc-shaped surfaces 34 on the corresponding side, and the guide protrusion 41 is located between the two rod arc-shaped surfaces 34 on the other side. The arc-shaped guide surfaces 212 and the rod arc-shaped surfaces 34 facilitate the rotation and locking of the pressing rod 3 in the locking groove 21, improve the locking efficiency of the pressing rod 3, and ensure the locking effect between the track body 1 and the connector 2.

[0031] The extrusion rod 3 is made of aluminum profile by extrusion, and the locking protrusion 31 and the guide protrusion 41 are integrally formed on the outside of the extrusion rod 3 and extend along the axial direction of the extrusion rod 3, which improves the structural strength of the extrusion rod 3, the locking protrusion 31 and the guide protrusion 41, increases the service life, and ensures the locking effect of the extrusion rod 3 on the track body 1.

[0032] Specifically, the extrusion rod 3 has an axially extending internal hexagonal hole 35 on its inner circumference that can cooperate with the internal hexagonal wrench 5. The cooperation between the internal hexagonal wrench 5 and the internal hexagonal hole 35 makes it easy for the user to control the rotation and extrusion of the extrusion rod 3, thereby improving the locking efficiency of the extrusion rod 3 and ensuring the locking effect.

[0033] Combination Figure 1 , Figure 4As shown, the connector 2 has several screw holes 22 located on one side of the locking groove 21 at both ends. The screw holes 22 are equipped with fixing screws 23, and the screw caps 231 of the fixing screws 23 abut against the end of the locking groove 21. The screw holes 22 make it easy to fix the fixing screws 23 on the connector 2. The screw caps 231 can extend to the end of the pressing rod 3 and limit the end of the pressing rod 3, which can effectively prevent the pressing rod 3 from axially displacing from the locking groove 21 and ensure locking stability.

[0034] The principle of this embodiment is as follows: the connector 2 is sleeved on the track body 1 and the pressing rod 3 is placed in the locking groove 21. The pressing rod 3 is rotated by the internal hex wrench 5. During the rotation, the pressing rod 3 can be guided by the rotation guide component 4 to improve the rotation efficiency. The locking protrusion 31 and the externally protruding locking curved surface 33 are locked against the side of the track body 1 to ensure the locking effect. The screw cap 231 of the fixing screw 23 can limit the end of the pressing rod 3 to ensure the locking stability of the pressing rod 3.

[0035] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0036] Although this document frequently uses terms such as track body 1, connector 2, locking groove 21, side opening 211, arc-shaped guide surface 212, screw hole 22, fixing screw 23, screw cap 231, pressing rod 3, locking protrusion 31, inclined guide surface 32, outwardly convex locking curved surface 33, rod body arc surface 34, internal hexagon hole 35, rotating guide assembly 4, guide protrusion 41, arc-shaped guide groove 42, and internal hexagon wrench 5, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A rapid track connection structure, comprising a connector (2) sleeved between the outer sides of two adjacent coaxially arranged track bodies (1), wherein both ends of the connector (2) extend to the outer sides of different track bodies (1), characterized in that, The connector (2) is provided with at least one locking groove (21) extending axially and having a side opening (211) facing the outside of the track body (1) on its inner circumferential side. A compression rod (3) with a non-circular cross-section is movably inserted in the locking groove (21) and can rotate circumferentially in the locking groove (21) under the action of external force so that its outer side abuts against the outer side of the track body (1).

2. The rail rapid connection structure according to claim 1, characterized in that, The number of locking grooves (21) is four, which are respectively set on the four corners of the inner circumference of the connector (2), and the two ends of the locking grooves (21) respectively penetrate the end of the connector (2) axially.

3. The rapid rail connection structure according to claim 1, characterized in that, The extrusion rod (3) is axially inserted into the locking groove (21) and both ends of the extrusion rod (3) do not extend beyond the ends of the locking groove (21).

4. A rapid rail connection structure according to claim 1, 2, or 3, characterized in that, The extrusion rod (3) has a locking protrusion (31) on its outer circumferential side that protrudes from the side opening (211) of the locking groove (21) and abuts against the outer side of the track body (1), and a rotation guide assembly (4) is provided between the extrusion rod (3) and the locking groove (21).

5. The rail rapid connection structure according to claim 4, characterized in that, The locking protrusion (31) has an inclined guide surface (32) extending outward toward the outside of the extrusion rod (3), and the inclined guide surface (32) has an outwardly protruding locking surface (33) protruding toward the outside of the extrusion rod (3) and located on the side of the side opening (211) of the locking groove (21).

6. The rail rapid connection structure according to claim 4, characterized in that, The rotating guide assembly (4) includes a guide protrusion (41) disposed on the side of the extrusion rod (3) away from the locking protrusion (31) and extending along the axial direction of the extrusion rod (3). The locking groove (21) has an arc-shaped guide groove (42) corresponding to the guide protrusion (41) on the inner side away from the side opening (211). The length of the arc-shaped guide groove (42) is greater than the width of the guide protrusion (41), and the guide protrusion (41) is slidably disposed in the arc-shaped guide groove (42).

7. A rapid rail connection structure according to claim 6, characterized in that, The locking groove (21) has two symmetrically arranged arc-shaped guide surfaces (212), and the pressing rod (3) has two rod arc-shaped surfaces (34) on its outer circumference that correspond one-to-one with the arc-shaped guide surfaces (212) and cooperate with each other. The locking protrusion (31) is located between the two rod arc-shaped surfaces (34) on their corresponding sides, and the guide protrusion (41) is located between the two rod arc-shaped surfaces (34) on their corresponding sides.

8. The rapid rail connection structure according to claim 7, characterized in that, The extrusion rod (3) is made of aluminum profile by extrusion, and the locking protrusion (31) and the guide protrusion (41) are integrally formed on the outside of the extrusion rod (3) and extend along the axial direction of the extrusion rod (3).

9. A rapid rail connection structure according to claim 1, characterized in that, The extrusion rod (3) has an axially extending internal hexagonal hole (35) on its inner circumferential side that can cooperate with the internal hexagonal wrench (5).

10. A rapid rail connection structure according to claim 1, characterized in that, The connector (2) has several screw holes (22) located on one side of the locking groove (21) at both ends. The screw holes (22) are provided with fixing screws (23) and the screw caps (231) of the fixing screws (23) abut against the end of the locking groove (21).

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