A clamp suitable for clamping leaky cables of multiple specifications

Abstract

The present invention provides a fixture suitable for clamping leaky cables of multiple specifications, including a base and a cover plate. An opening groove is formed in the base. At the bottom of the opening groove, a first connecting portion and a second connecting portion extending towards the cover plate are fixedly connected respectively. A first support plate is fixedly connected to the first connecting portion, and a second support plate is fixedly connected to the second connecting portion. The bottoms of the first support plate and the second support plate are connected through a buckle structure. The first support plate, the second support plate and the cover plate enclose a cable trough for clamping the leaky cable. The cable trough is adapted to change the cable diameter size and adapt to the corresponding leaky cable clamping through the locked or opened state of the buckle structure, improving the current situation that the existing leaky cable fixture has a single cable diameter adaptation structure and poor adaptability in engineering construction.

Description

Technical Field

[0001] The present invention relates to the technical field of leaky cable clamping structures, and particularly relates to a fixture suitable for clamping leaky cables of multiple specifications. Background Art

[0002] A leaky cable is short for a leaky coaxial cable, and a leaky coaxial cable has a signal transmission function and an antenna function. Generally, it is laid along a railway line during construction. After the laid line enters a tunnel, the leaky cable needs to be fixed on the inner wall of the tunnel. Usually, a leaky cable fixture is used to bind and fix the leaky cable and then fixed on the inner wall of the tunnel through an expansion fastener, and the leaky cable fixtures are distributed along the laying direction of the leaky cable to form a stable support and fixing system.

[0003] In railway engineering, the common leaky cable sizes are 13 / 8 inches, 5 / 4 inches or waveguides. According to the existing construction method, when laying and clamping leaky cables of different sizes, leaky cable fixtures of corresponding sizes are used for clamping and installation; this results in a large variety of leaky cable fixtures; during the process of upgrading 4G and 5G leaky cables in existing lines, there is also a situation where the existing fixtures cannot be adapted after the upgrade. Thus, it can be seen that the existing fixture structure has a single cable diameter adaptation, and has poor adaptability in engineering construction; and the waste fixtures after replacement are likely to cause environmental pollution. Summary of the Invention

[0004] Aiming at the deficiencies in the prior art, the present invention provides a fixture suitable for clamping leaky cables of multiple specifications, and solves the problems of single cable diameter adaptation of the existing leaky cable fixture structure and poor adaptability in engineering construction.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A fixture suitable for clamping leaky cables of multiple specifications includes a base and a cover plate.

[0007] An opening groove is formed on the base.

[0008] At the bottom of the opening groove, a first connecting portion and a second connecting portion extending towards the cover plate are respectively fixedly connected.

[0009] A first support plate is fixedly connected to the first connecting portion, a second support plate is fixedly connected to the second connecting portion, and the bottoms of the first support plate and the second support plate are connected by a snap structure.

[0010] The first support plate, the second support plate and the cover plate enclose a cable slot for clamping the leaky cable.

[0011] By the locked or opened state of the snap structure, the adapted cable diameter size of the cable slot is changed to adapt to the clamping of the corresponding leaky cable.

[0012] Preferably, positioning grooves for placing the protruding stems of the leaky cable are provided at the upper and lower ends of the first support plate and the upper and lower ends of the second support plate.

[0013] Preferably, one end of the cover plate is rotatably mounted on the base through a pin shaft, and the other end of the cover plate is connected to the base through a snap structure.

[0014] Preferably, an anti-detachment pin is also inserted between the cover plate and the base, and the anti-detachment pin is arranged at the position where the cover plate and the base are connected through the snap structure.

[0015] Preferably, the number of the bases is two, and the two bases are fixedly connected into an integral structure;

[0016] The cover plates are both mounted on the two bases.

[0017] Preferably, the base, the first connecting portion, the second connecting portion, the first support plate and the second support plate are of an integrally formed structure.

[0018] Preferably, two elastic pieces which are symmetric in structure and located in the cable trough are arranged on the cover plate;

[0019] The structure of the elastic piece is an "L"-shaped structure.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. A cable trough is formed by enclosing between the first support plate, the second support plate and the cover plate to clamp the adapted leaky cable; when the size of the leaky cable changes, when the snap structure locks and connects the first support plate and the second support plate, and is supported by the first connecting portion and the second connecting portion, clamping of the leaky cable with a small cable diameter is formed; when the snap structure is in an open state, the first support plate and the second support plate are pressed downward and then attached to the inner wall of the opening groove, so that the size of the cable trough formed by enclosing becomes larger, facilitating clamping of the leaky cable with a larger cable diameter; thus, clamping of cables with various cable diameters can be realized, overcoming the defect of single adapted cable diameter in the prior art;

[0022] 2. Through the deformation adjustment of the first support plate and the second support plate, the internal cable trough structure changes to adapt to leaky cables of various specifications, so that after the leaky cable clamp is installed once, it has good adaptability to cable upgrading or specification transformation, and the same leaky cable clamp can be used in engineering construction to adapt to the clamping of leaky cables under different application scenario requirements; it has good benefits both for construction and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of the first embodiment of the present invention;

[0024] Figure 2 Schematic diagram of the locking state of the first pallet and the second pallet in the first embodiment;

[0025] Figure 3 Schematic diagram of the open state of the first pallet and the second pallet in the first embodiment;

[0026] Figure 4 Schematic diagram of the second embodiment of the present invention;

[0027] Figure 5 Schematic diagram of the locking state of the first pallet and the second pallet in the second embodiment;

[0028] Figure 6 Schematic diagram of the open state of the first pallet and the second pallet in the second embodiment;

[0029] In the figure, base 1, cover plate 2, opening groove 3, first connecting portion 4, second connecting portion 5, first pallet 6, second pallet 7, cable trough 8, positioning groove 9, pin shaft 10, anti - detachment pin 11, elastic piece 12. Detailed implementation manners

[0030] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and be able to implement it, but the embodiments cited are not intended to limit the present invention.

[0031] As Figure 1 , Figure 2 and Figure 3 shown, in the embodiments of the present invention, a clamp suitable for clamping leakage cables of multiple specifications is proposed. The entire clamp is made of PA66, which has environmental protection, flame retardancy, and a certain deformation effect; it includes a base 1 and a cover plate 2. An opening groove 3 is provided on the base 1, and a first connecting portion 4 and a second connecting portion 5 extending towards the cover plate 2 are respectively fixedly connected to the bottom of the opening groove 3. A first pallet 6 is fixedly connected to the first connecting portion 4, a second pallet 7 is fixedly connected to the second connecting portion 5, and the bottoms of the first pallet 6 and the second pallet 7 are connected by a snap - lock structure; thus, the first pallet 6, the second pallet 7, and the cover plate 2 enclose to form a cable trough for clamping the leakage cable. As Figure 2 shown, when the snap - lock structure is in the locked state, the adapted cable diameter size of the cable trough is smaller, and it can adapt to a leakage cable with a cable diameter of 5 / 4 inches, and can press the leakage cable after the cover plate 2 is closed to ensure that it has an axial pulling force that meets the requirements; as Figure 3As shown, when the buckle structure is in the open state, the first support plate 6 and the second support plate 7 are pressed against the inner wall of the opening groove 3, so that the cable groove has a larger adaptable cable diameter, can adapt to a leaky cable with a cable diameter of 13 / 8 inches, and can also press the leaky cable after the cover plate 2 is closed and ensure that it has a required axial pulling force.

[0032] Specifically, when adapting to leaky cables, both the 13 / 8-inch leaky cable and the 5 / 4-inch leaky cable are circular structures. When changing the diameter to adapt to waveguide leaky cables, the shape or size of the opening groove 3 needs to be changed, such as Figure 3 、 Figure 4 、 Figure 5 As shown, the structural structure and principle of the overall structure are the same. After mainly changing the shape of the opening groove 3, when adapting to the clamping of waveguide leaky cables, the cable slot 8 formed by the deformation of the first support plate 6, the second support plate 7 and the cover plate 2 can reliably clamp the waveguide leaky cable.

[0033] In order to position the leaky cable convex stem when clamping the leaky cable, so as to clamp and position the radiation angle of the leaky cable, such as Figure 2 、 Figure 4 As shown, positioning grooves 9 for placing the leaky cable convex stems are provided at the upper and lower ends of the first support plate 6 and the upper and lower ends of the second support plate 7.

[0034] As Figures 1 to 6 As shown, during installation, one end of the cover plate 2 is rotatably installed on the base 1 through a pin shaft 10, the other end of the cover plate 2 is connected to the base 1 through a buckle structure, and an anti-detachment pin 11 is arranged between the cover plate 2 and the base 1, and the anti-detachment pin 11 is arranged at the position where the cover plate 2 and the base 1 are connected through the buckle structure; when clamping and installing the leaky cable, the cover plate 2 can be directly rotated for buckling, and after buckling, by inserting the anti-detachment pin 11, the cover plate 2 can be prevented from falling off. In extreme cases, even if the cover plate 2 breaks, the possibility of falling off can be avoided.

[0035] In order to further adapt to the clamping application of leaky cables in high-speed rails, such as Figure 1 、 Figure 4 As shown, the number of bases 1 is two, and the two bases 1 are fixedly connected into an integral structure. At the same time, cover plates 2 are installed on both bases 1; therefore, the leaky cable can be positioned by clamping twice at the same position, and the overall is an integral structure, having good structural strength and installation stability.

[0036] Based on the above structure, it should be noted that the base 1, the first connecting part 4, the second connecting part 5, the first support plate 6 and the second support plate 7 are integrally formed structures, which can not only improve the processing and manufacturing efficiency, but also ensure the stability of the overall structure, and enable the first connecting part 4 and the second connecting part 5 to have a stable connection effect and elasticity.

[0037] After the leaky cable is clamped in the cable trough 8, the leaky cable is pressed by the cover plate 2. In order to further improve the clamping force of the leaky cable and have a good fitting effect on the leaky cable after the cable diameter is changed, as Figure 2 、 3 、Figures 5 and 6 show that two elastic pieces 12 which are symmetrically structured and located in the cable trough 8 are provided on the cover plate 2, and the elastic pieces 12 are in a structure similar to an "L" shape.

[0038] In the explanation of the present invention, it should be noted that the terms "first", "second", etc. are only for the convenience of description and understanding, and do not limit the installation order, importance degree or quantity of specific technical features.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A clamp suitable for clamping leaky cables of multiple specifications, comprising a base (1) and a cover plate (2), characterized in that, An opening groove (3) is formed in the base (1); a first connecting portion (4) and a second connecting portion (5) extending towards the cover plate (2) are fixedly connected to the bottom of the opening groove (3) respectively; A first support plate (6) is fixedly connected to the first connecting portion (4), a second support plate (7) is fixedly connected to the second connecting portion (5), and the bottoms of the first support plate (6) and the second support plate (7) are connected by a buckle structure; The first support plate (6), the second support plate (7) and the cover plate (2) enclose to form a cable trough (8) for clamping a leaky cable; positioning grooves (9) for placing the ridges of the leaky cable are formed at the upper and lower ends of the first support plate (6) and the upper and lower ends of the second support plate (7); The base (1), the first connecting portion (4), the second connecting portion (5), the first support plate (6) and the second support plate (7) are of an integrally formed structure; The cable trough (8) is adapted to change the cable diameter size and adapt to the corresponding leaky cable clamping through the locked or opened state of the buckle structure; One end of the cover plate (2) is rotatably mounted on the base (1) through a pin shaft (10), and the other end of the cover plate (2) is connected to the base (1) through a buckle structure.

2. The clamp suitable for clamping leaky cables of multiple specifications according to claim 1, characterized in that, An anti-detachment pin (11) is also inserted between the cover plate (2) and the base (1), and the anti-detachment pin (11) is arranged at the position where the cover plate (2) is connected to the base (1) through the buckle structure.

3. The clamp suitable for clamping leaky cables of multiple specifications according to claim 2, characterized in that, The number of the bases (1) is two, and the two bases (1) are fixedly connected into an integral structure; the cover plates (2) are both mounted on the two bases (1).

4. A clamp suitable for clamping leaky cables of multiple specifications according to claim 1, characterized in that, Two elastic pieces (12) which are symmetric in structure and located in the cable trough (8) are arranged on the cover plate (2); the structure of the elastic piece (12) is a similar "L" shape structure.

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