Rapid connection structure of flexible fire-resistant cable for building

Abstract

The utility model discloses a rapid connection structure of a flexible fire-resistant cable for building, comprising a clamping locking structure, the clamping locking structure comprises a sleeve, a first spacing ring, an annular sleeve, a movable ring, a compression spring, a groove, a spacing through hole and a spacing ball, and two ends of the sleeve are plugged with cable connection sleeves. A mounting hole is formed in the end, away from the clamping locking structure, of the outer surface of the upper end of the cable connecting sleeve, an inner hexagonal countersunk bolt is mounted in the mounting hole in a threaded mode, and a second limiting ring is fixedly mounted on the outer wall of the middle of the cable connecting sleeve. According to the rapid connection structure of the flexible fire-resistant cable for the building, the cable connection sleeves are arranged to facilitate connection with the cable, and the clamping locking structures are arranged to facilitate limiting of the two groups of cable connection sleeves, so that the cable connection sleeves of the two groups of connection cables are connected; and assembly and disassembly are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of cable connection technology, specifically a quick connection structure for flexible fire-resistant cables used in construction. Background Technology

[0002] In building construction, flexible fire-resistant cables are widely used in important fields such as power transmission and fire protection systems due to their excellent fire resistance and flexibility. However, in actual construction, there are still some inconveniences in connecting cables. Traditional cable connection methods often involve wrapping insulating tape, crimping terminals, or using ordinary junction boxes. These methods are not only cumbersome and time-consuming, but also often fail to guarantee the mechanical strength and sealing of the connection points, leading to potential problems such as poor contact, loosening, or moisture absorption.

[0003] Furthermore, the construction site environment is complex, and cable connections need to have certain tensile strength, vibration resistance, and rapid assembly / disassembly capabilities. While some existing connection structures have achieved cable fixation to a certain extent, they generally suffer from problems such as complex structure, inconvenient assembly / disassembly, and the need for specialized tools, making it difficult to meet the needs of rapid construction and subsequent maintenance.

[0004] Therefore, we propose a quick connection structure for flexible fire-resistant cables used in construction. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a quick connection structure for flexible fire-resistant cables used in construction. The cables can be quickly connected and disassembled, which effectively solves the problems in the background technology.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a quick connection structure for flexible fire-resistant cables used in construction, including a snap-fit ​​locking structure. The snap-fit ​​locking structure includes a sleeve, a first limiting ring, an annular sleeve, a movable ring, a compression spring, a groove, a limiting through hole, and a limiting ball. Cable connecting sleeves are inserted into both ends of the sleeve. An installation hole is provided at the end of the upper outer surface of the cable connecting sleeve away from the snap-fit ​​locking structure. A countersunk hexagonal head bolt is threaded into the installation hole. A second limiting ring is fixedly installed on the outer wall of the middle part of the cable connecting sleeve. Limiting grooves are provided at the ends of both outer surfaces of the cable connecting sleeve away from the installation hole.

[0009] Preferably, the number of the annular sleeve, the movable ring, and the compression spring are all two sets, and a movable block is fixedly installed at one end of the upper outer surface of the two sets of movable rings.

[0010] Preferably, the first limiting ring is fixedly installed on the outer wall of the middle part of the sleeve, the two sets of annular sleeves are fixedly installed on the outer surfaces of both sides of the first limiting ring, the compression spring is movably sleeved on the outer wall of the sleeve and the compression spring is located inside the annular sleeve, and the two sets of movable rings are movably sleeved on the outer walls of both ends of the sleeve.

[0011] Preferably, the compression spring is fixedly installed between one end of the outer surface of the movable ring and one side of the outer surface of the first limiting ring, and one end of the outer surface of the movable ring is elastically connected to one side of the first limiting ring through the compression spring.

[0012] Preferably, the groove is formed on the left and right sides of the inner wall of the movable ring away from the compression spring, the limiting through hole is formed on the left and right ends of the outer surface of both sides of the sleeve, and the limiting ball is movably limited in the limiting through hole.

[0013] Preferably, after the cable connecting sleeve is inserted into the sleeve, one side of the limiting ball is limited in the limiting groove.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a quick connection structure for flexible fire-resistant cables used in construction, which has the following advantages:

[0016] 1. The quick connection structure of the flexible fire-resistant cable for building uses a cable connection sleeve to facilitate connection with the cable.

[0017] 2. The quick connection structure of the flexible fire-resistant cable for building uses a snap-locking structure to limit the two sets of cable connection sleeves, so that the cable connection sleeves of the two sets of connecting cables can be connected, which facilitates assembly and disassembly. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a quick connection structure for a flexible fire-resistant cable for building applications according to this utility model.

[0019] Figure 2 This is a side cross-sectional view of a quick connection structure for a flexible fire-resistant cable for building applications according to this utility model.

[0020] Figure 3 This is a side cross-sectional view of the snap-locking structure in the quick-connect structure of a flexible fire-resistant cable for building according to this utility model.

[0021] Figure 4 This is a side cross-sectional view of the cable connection sleeve in the quick connection structure of a flexible fire-resistant cable for building according to this utility model.

[0022] In the diagram: 1. Snap-fit ​​locking structure; 2. Cable connecting sleeve; 3. Sleeve; 4. First limiting ring; 5. Annular sleeve; 6. Movable ring; 7. Compression spring; 8. Groove; 9. Limiting through hole; 10. Limiting ball; 11. Limiting groove; 12. Mounting hole; 13. Socket head cap screw; 14. Movable block; 15. Second limiting ring. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] This embodiment is a quick connection structure for flexible fire-resistant cables used in construction.

[0025] like Figure 1-4 As shown, it includes a snap-locking structure 1, which includes a sleeve 3, a first limiting ring 4, an annular sleeve 5, a movable ring 6, a compression spring 7, a groove 8, a limiting through hole 9, and a limiting ball 10. Cable connecting sleeves 2 are inserted into both ends of the sleeve 3. The upper outer surface of the cable connecting sleeve 2 away from the snap-locking structure 1 has an installation hole 12. An internal hexagon countersunk bolt 13 is threaded into the installation hole 12. A second limiting ring 15 is fixedly installed on the outer wall of the middle part of the cable connecting sleeve 2. Limiting grooves 11 are opened on both outer surfaces of the cable connecting sleeve 2 away from the installation hole 12.

[0026] There are two sets of annular sleeve 5, movable ring 6, and compression spring 7. Movable blocks 14 are fixedly installed on one end of the upper outer surface of the two sets of movable ring 6. The first limiting ring 4 is fixedly installed on the outer wall of the middle part of the sleeve 3. The two sets of annular sleeves 5 are fixedly installed on the outer surfaces of the two sides of the first limiting ring 4. The compression spring 7 is movably sleeved on the outer wall of the sleeve 3 and is located inside the annular sleeve 5. The two sets of movable rings 6 are movably sleeved on the outer walls of both ends of the sleeve 3. The compression spring 7 is fixedly installed between the outer surface of one end of the movable ring 6 and the outer surface of one side of the first limiting ring 4. The outer surface of one end of the movable ring 6 is elastically connected to one side of the first limiting ring 4 through the compression spring 7. The groove 8 is opened on the left and right sides of the inner wall of the movable ring 6 away from the end of the compression spring 7. The limiting through hole 9 is opened on the left and right ends of the outer surfaces of both sides of the sleeve 3, and the limiting ball 10 is movably limited in the limiting through hole 9. After the cable connecting sleeve 2 is inserted into the sleeve 3, one side of the limiting ball 10 is limited in the limiting groove 11.

[0027] It should be noted that this utility model is a quick connection structure for flexible fire-resistant cables used in construction. When connecting two sets of flexible fire-resistant cables, firstly, one end of the flexible fire-resistant cable is inserted into the inside of the cable connecting sleeve 2 and locked in place by the hexagon countersunk head bolt 13. The lower end of the hexagon countersunk head bolt 13 is used to press and fix the flexible fire-resistant cable. Then, the two sets of cable connecting sleeves 2 that connect the flexible fire-resistant cables are connected. First, the movable block 14 is pushed, and the movable block 14 drives the movable ring 6 to press the compression spring 7 along the inner wall of the annular sleeve 5, so that the groove 8 moves to one end of the limiting through hole 9. Then, the cable connecting sleeve 2 is inserted into the sleeve 3, and the limiting ball 10 is compressed and moves in the limiting through hole 9. One side of the cable connecting sleeve 2 enters the groove 8. After inserting the cable connecting sleeve 2 into the sleeve 3, it is limited to one end of the sleeve 3 by the second limiting ring 15. Then, the movable ring 6 is reset so that the groove 8 and the limiting through hole 9 are misaligned. The movable ring 6 squeezes the limiting ball 10 so that one side of the limiting ball 10 enters the limiting groove 11, thus limiting the cable connecting sleeve 2. After the two sets of cable connecting sleeves 2 are inserted into the sleeve 3, they make contact. Then, the cable connecting sleeves 2 exposed to the outside are covered by external insulating tape and insulating sleeve. When disassembling, simply squeeze the movable ring 6 to slide along the annular sleeve 5 so that the groove 8 reaches one side of the limiting through hole 9, and the cable connecting sleeve 2 can be pulled out from the sleeve 3. Assembly and disassembly are both relatively convenient.

[0028] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A quick-connect structure for flexible fire-resistant cables used in construction, comprising a snap-fit ​​locking structure (1), characterized in that: The locking structure (1) includes a sleeve (3), a first limiting ring (4), an annular sleeve (5), a movable ring (6), a compression spring (7), a groove (8), a limiting through hole (9), and a limiting ball (10). Cable connecting sleeves (2) are inserted into both ends of the sleeve (3). An installation hole (12) is opened on the upper outer surface of the cable connecting sleeve (2) away from the locking structure (1). An internal hexagon countersunk bolt (13) is threaded in the installation hole (12). A second limiting ring (15) is fixedly installed on the outer wall of the middle part of the cable connecting sleeve (2). Limiting grooves (11) are opened on both sides of the outer surface of the cable connecting sleeve (2) away from the installation hole (12).

2. The quick connection structure for a flexible fire-resistant cable for building applications according to claim 1, characterized in that: The number of the annular sleeve (5), the movable ring (6), and the compression spring (7) are all in two sets, and a movable block (14) is fixedly installed on one end of the upper outer surface of the two sets of movable rings (6).

3. The quick connection structure for a flexible fire-resistant cable for building applications according to claim 2, characterized in that: The first limiting ring (4) is fixedly installed on the outer wall of the middle part of the sleeve (3), the two sets of annular sleeves (5) are fixedly installed on the outer surfaces of the two sides of the first limiting ring (4), the compression spring (7) is movably sleeved on the outer wall of the sleeve (3), and the compression spring (7) is located inside the annular sleeve (5), and the two sets of movable rings (6) are movably sleeved on the outer walls of both ends of the sleeve (3).

4. The quick connection structure for a flexible fire-resistant cable for building applications according to claim 3, characterized in that: The compression spring (7) is fixedly installed between one end of the outer surface of the movable ring (6) and one side of the outer surface of the first limiting ring (4). One end of the outer surface of the movable ring (6) is elastically connected to one side of the first limiting ring (4) through the compression spring (7).

5. The quick connection structure for a flexible fire-resistant cable for building applications according to claim 4, characterized in that: The groove (8) is opened on the left and right sides of the inner wall of the movable ring (6) away from the compression spring (7), the limiting through hole (9) is opened on the left and right ends of the outer surface of both sides of the sleeve (3), and the limiting ball (10) is movably limited in the limiting through hole (9).

6. The quick connection structure for a flexible fire-resistant cable for building applications according to claim 5, characterized in that: After the cable connecting sleeve (2) is inserted into the sleeve (3), one side of the limiting ball (10) is limited in the limiting groove (11).

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