Explosion-proof armored double-sealing cable entry device

Abstract

The utility model discloses an explosion-proof armored double-sealed cable entry device, and relates to the technical field. The cable connecting device comprises a connecting component and a cable, and is characterized in that the cable is provided with a fixing mechanism and a connecting mechanism; the fixing mechanism comprises a first fixing sleeve slidably connected to the outer surface of the cable, the first fixing sleeve is slidably connected with two sliding rods, the two sliding rods extend into the first fixing sleeve, the tail ends of the two sliding rods are fixedly connected with arc-shaped cushion blocks, and the arc-shaped cushion blocks are fixedly connected to the outer surface of the cable. The outer surfaces of the two arc-shaped cushion blocks are each provided with two threaded grooves, two bolts are connected between the two arc-shaped cushion blocks in a threaded mode, and the two bolts are in threaded connection with the two threaded grooves. According to the utility model, through the arrangement of the fixing mechanism, cables with different calibers can be positioned and fixed, so that the safe fixation of the cables is ensured, the universal application of the cables with different specifications is realized, the installation cost of the cables is reduced, and the installation efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of flameproof cable introduction, in particular to a flameproof armored double-sealed cable introduction device. Background Art

[0002] Flameproof armored cable joints are widely used in dangerous places such as coal mines and gas. The existing flameproof armored cable joints are arranged with an inner sealing structure composed of an inner sealing bushing and an inner sealing compression sleeve and an outer sealing structure composed of an outer sealing bushing and an outer sealing compression sleeve at intervals along the axial direction. The inner sealing compression sleeve is mounted on the inner sealing bushing, and the outer sealing compression sleeve is mounted on the outer sealing bushing. When in use, the outer sealing bushing is mounted on the armored cable, the inner sealing bushing is mounted on the armored cable, and the outer sealing bushing is mounted on the cable with the armor removed. By squeezing the outer sealing compression sleeve and the inner sealing compression sleeve, the outer sealing bushing and the inner sealing bushing are respectively caused to radially shrink and deform, so that they are closely matched with the outer walls of the armored cable and the cable with the armor removed, respectively, to achieve the purpose of sealing.

[0003] In the prior art, after searching, it was found that a Chinese patent disclosed a "flameproof armored double-sealed cable entry device", and its application number is "CN201621227040.0". This patent mainly combines the left end flange II of the outer sealing sleeve with the left end ring groove II of the outer sealing bushing, which is a combination of a tapered hole with a large diameter at the right end and a cone; the fixed sleeve is provided with radial sealing structures at the joint with the outer connecting sleeve, the inner pressure ring, and the joint with the fixed sleeve. The utility model has reliable sealing and can play a good flameproof protection effect.

[0004] However, different cables require different connecting blocks and connection technologies when used, which greatly increases the cost of cable production. When installing the cables, they also need to be used with connecting tools and supporting parts specially customized for the cables. This is also a major obstacle for construction units. Since connecting tools of various specifications need to be prepared, this will increase the weight and volume carried by the construction team, causing great inconvenience to the construction. Utility Model Content

[0005] The purpose of the utility model is to provide a flameproof armored double-sealed cable entry device, which realizes the universal applicability of cables of different specifications by providing a fixing mechanism, unifies the connection devices and technologies of cables of different specifications, reduces the installation cost of the cables, improves the installation efficiency, and solves the problem that different cables need to use different connection blocks and connection technologies when in use, which greatly increases the cost of cable production.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a flameproof armored double-sealed cable entry device, comprising a connecting component and a cable, characterized in that: a fixing mechanism and a connecting mechanism are arranged on the cable;

[0008] The fixing mechanism includes a first fixing sleeve slidably connected to the outer surface of the cable, two sliding rods are slidably connected to the first fixing sleeve, the two sliding rods extend to the interior of the first fixing sleeve, the ends of the two sliding rods are fixedly connected to arc-shaped pads, the outer surfaces of the two arc-shaped pads are provided with two threaded grooves, two bolts are threadedly connected between the two arc-shaped pads, and the two bolts are threadedly connected to the two threaded grooves.

[0009] Further, the connecting mechanism includes a first limiting component, a first connecting component, a second limiting component and a second connecting component, the first limiting component includes a second fixed sleeve slidably connected to the outer surface of the first fixed sleeve, the inner wall of the second fixed sleeve is fixedly connected to two limiting plates, the outer surface of the first fixed sleeve is provided with two sliding grooves, the outer surfaces of the two limiting plates are slidably connected to the inner walls of the two sliding grooves, and the outer surface of the connecting member is provided with a first external thread.

[0010] Furthermore, the first connecting assembly includes a first connecting sleeve slidably connected to the outer surface of the second fixed sleeve, and the outer surface of the second fixed sleeve is fixedly connected to a first limiting ring. The inner wall of the first connecting sleeve is provided with a first limiting groove, the outer surface of the first limiting ring is slidably connected to the outer surface of the first limiting groove, and the inner wall of the first connecting sleeve is provided with a first internal thread, and the first internal thread is adapted to the first external thread.

[0011] Further, the second limiting assembly includes a first fixed sleeve whose inner wall is slidably connected to a second connecting sleeve, an outer surface of the second connecting sleeve is fixedly connected to a second limiting ring, an inner wall of the first fixed sleeve is provided with a second limiting groove, an outer surface of the second limiting ring is slidably connected to an inner wall of the second limiting groove, and an outer surface of the connecting member is provided with a second connecting thread.

[0012] Furthermore, the second connecting assembly includes a second internal thread provided on an inner wall of the second connecting sleeve, and the second internal thread is adapted to the second connecting thread.

[0013] Furthermore, a sealing gasket is fixedly connected to the outer surface of the cable, and anti-slip grooves are provided on the outer surface of the second connecting sleeve.

[0014] The utility model has the following beneficial effects:

[0015] 1. By setting up a fixing mechanism, the slide rod and the arc-shaped pad cooperate with each other to position cables of different calibers, and the bolts and the threaded grooves cooperate with each other to fix cables of different calibers, which not only ensures the safe fixation of the cables, but also realizes the universal applicability of cables of different specifications, unifies the connection devices and technologies of cables of different specifications, reduces the installation cost of the cables, and improves the installation efficiency.

[0016] 2. By providing a connecting mechanism, the first fixed sleeve, the second fixed sleeve, the first connecting sleeve and the second connecting sleeve cooperate with each other to realize a double-layer sealing mechanism, which can effectively improve the sealing effect and sealing reliability, and better prevent liquid or gas from penetrating into the interior of the device, thereby achieving good sealing performance; by providing anti-slip grooves, the second connecting sleeve is easy to rotate, and by providing a sealing gasket, the sealing gasket can be installed on cables of different calibers, and the second fixed sleeve is cooperated to seal the fixed part of the cable to enhance the sealing of the device.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a schematic diagram of the overall structure of a flameproof armored double-sealed cable entry device of the utility model;

[0020] Figure 2 It is a schematic cross-sectional structure diagram of a second fixed sleeve of a flameproof armored double-sealed cable entry device of the utility model;

[0021] Figure 3 It is a schematic cross-sectional structure diagram of a first fixed sleeve of a flameproof armored double-sealed cable entry device of the utility model;

[0022] Figure 4 The utility model is a flameproof armored double-sealed cable entry device Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0023] Figure 5 The utility model is a flameproof armored double-sealed cable entry device Figure 3 Schematic diagram of the enlarged structure at point B in the middle.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1. Connecting member; 11. First external thread; 12. Second connecting thread; 2. Cable; 3. First fixed sleeve; 31. Slide rod; 32. Arc-shaped pad; 33. Thread groove; 34. Bolt; 35. Washer; 36. Second fixed sleeve; 361. Limiting plate; 362. Slide groove; 363. First connecting sleeve; 364. First limiting ring; 365. First limiting groove; 366. First internal thread; 37. Second connecting sleeve; 371. Second limiting ring; 372. Second limiting groove; 373. Second internal thread; 374. Anti-slip pattern. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-5 As shown, the utility model is a flameproof armored double-sealed cable entry device, comprising a connecting member 1 and a cable 2, characterized in that: a fixing mechanism and a connecting mechanism are provided on the cable 2;

[0028] The fixing mechanism includes a first fixing sleeve 3 slidably connected to the outer surface of the cable 2, and two sliding rods 31 are slidably connected to the first fixing sleeve 3. The two sliding rods 31 extend to the interior of the first fixing sleeve 3. The ends of the two sliding rods 31 are fixedly connected to arc-shaped pads 32. The outer surfaces of the two arc-shaped pads 32 are provided with two threaded grooves 33. Two bolts 34 are threadedly connected between the two arc-shaped pads 32, and the two bolts 34 are threadedly connected to the two threaded grooves 33.

[0029] Among them Figure 2 and Figure 4 As shown, the connecting mechanism includes a first limiting component, a first connecting component, a second limiting component and a second connecting component. The first limiting component includes a second fixed sleeve 36 slidably connected to the outer surface of the first fixed sleeve 3. The inner wall of the second fixed sleeve 36 is fixedly connected with two limiting plates 361. The outer surface of the first fixed sleeve 3 is provided with two sliding grooves 362. The outer surfaces of the two limiting plates 361 are slidably connected to the inner walls of the two sliding grooves 362. The outer surface of the connecting member 1 is provided with a first external thread 11.

[0030] By providing the first limiting assembly, the limiting piece 361 cooperates with the slide groove 362 so that the second fixing sleeve 36 can only slide back and forth along the slide groove 362 on the outer surface of the first fixing sleeve 3 .

[0031] Among them Figure 2 and Figure 4 As shown, the first connecting component includes a first connecting sleeve 363 slidably connected to the outer surface of the second fixed sleeve 36, and the outer surface of the second fixed sleeve 36 is fixedly connected with a first limiting ring 364. The inner wall of the first connecting sleeve 363 is provided with a first limiting groove 365, the outer surface of the first limiting ring 364 is slidably connected to the outer surface of the first limiting groove 365, and the inner wall of the first connecting sleeve 363 is provided with a first internal thread 366, which is adapted to the first external thread 11.

[0032] By providing a first connecting component, the first limiting ring 364 cooperates with the first limiting groove 365 so that the first connecting sleeve 363 can only rotate on the outer surface of the second fixed sleeve 36, and at the same time cooperates with the first internal thread 366 and the first external thread 11 so that the second fixed sleeve 36 is fixed on the connecting member 1 through the first connecting sleeve 363.

[0033] Among them Figure 3 and Figure 5 As shown, the second limiting assembly includes a first fixed sleeve 3 whose inner wall is slidably connected to a second connecting sleeve 37, an outer surface of the second connecting sleeve 37 is fixedly connected to a second limiting ring 371, an inner wall of the first fixed sleeve 3 is provided with a second limiting groove 372, an outer surface of the second limiting ring 371 is slidably connected to the inner wall of the second limiting groove 372, and an outer surface of the connecting member 1 is provided with a second connecting thread 12.

[0034] By providing the second limiting assembly, the second limiting groove 372 cooperates with the second limiting ring 371 so that the second connecting sleeve 37 can only rotate on the inner wall of the first fixing sleeve 3 .

[0035] Among them Figure 1 and Figure 2 As shown, the second connection assembly includes a second internal thread 373 disposed on the inner wall of the second connection sleeve 37 , and the second internal thread 373 is adapted to the second connection thread 12 .

[0036] By providing a second connecting component, the second internal thread 373 cooperates with the second connecting thread 12, so that the first fixed sleeve 3 is fixed to the connecting member 1 through the second connecting sleeve 37, and at the same time cooperates with the first connecting component to realize a double-layer sealing mechanism, which can effectively improve the sealing effect and sealing reliability, and better prevent liquid or gas from infiltrating into the interior of the device, thereby achieving good sealing performance.

[0037] Among them Figure 2 As shown, a sealing gasket 35 is fixedly connected to the outer surface of the cable 2 , and an anti-slip pattern 374 is provided on the outer surface of the second connecting sleeve 37 .

[0038] The anti-slip grooves 374 are provided to facilitate the rotation of the second connecting sleeve 37. The sealing gasket 35 is provided to install the sealing gasket 35 on cables 2 of different diameters, and cooperates with the second fixing sleeve 36 to seal the fixing position of the cable, thereby enhancing the sealing performance of the device.

[0039] A specific application of this embodiment is: by providing a fixing mechanism, the slide rod 31 and the arc-shaped pad 32 cooperate with each other to position cables 2 of different calibers, and the bolt 34 and the threaded groove 33 cooperate with each other to fix the cables 2 of different calibers, which not only ensures the safe fixation of the cables, but also realizes the universal applicability of cables of different specifications, which is convenient and practical to use; by providing a connecting mechanism, the first fixing sleeve 3, the second fixing sleeve 36, the first connecting sleeve 363 and the second connecting sleeve 37 cooperate with each other to realize a double-layer sealing mechanism, which can effectively improve the sealing effect and sealing reliability, and better prevent liquid or gas from infiltrating into the interior of the device, thereby achieving good sealing performance; by providing an anti-slip pattern 374, the second connecting sleeve 37 is easy to rotate, and by providing a sealing gasket 35, the sealing gasket 35 is installed on cables 2 of different calibers, and the second fixing sleeve 36 is cooperated to seal the fixing part of the cable to enhance the sealing performance of the device.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0041] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A flameproof armored double-sealed cable entry device, comprising a connecting member (1) and a cable (2), characterized in that: The cable (2) is provided with a fixing mechanism and a connecting mechanism; The fixing mechanism comprises a first fixing sleeve (3) slidably connected to the outer surface of the cable (2); two sliding rods (31) are slidably connected to the first fixing sleeve (3); the two sliding rods (31) extend into the interior of the first fixing sleeve (3); the ends of the two sliding rods (31) are fixedly connected to arc-shaped pads (32); the outer surfaces of the two arc-shaped pads (32) are provided with two threaded grooves (33); two bolts (34) are threadedly connected between the two arc-shaped pads (32); the two bolts (34) are threadedly connected to the two threaded grooves (33).

2. The flameproof armored double-sealed cable entry device according to claim 1, characterized in that: The connecting mechanism comprises a first limiting component, a first connecting component, a second limiting component and a second connecting component. The first limiting component comprises a second fixed sleeve (36) slidably connected to the outer surface of the first fixed sleeve (3). The inner wall of the second fixed sleeve (36) is fixedly connected to two limiting plates (361). The outer surface of the first fixed sleeve (3) is provided with two sliding grooves (362). The outer surfaces of the two limiting plates (361) are both slidably connected to the inner walls of the two sliding grooves (362). The outer surface of the connecting member (1) is provided with a first external thread (11).

3. The flameproof armored double-sealed cable entry device according to claim 2, characterized in that: The first connecting assembly comprises a first connecting sleeve (363) slidably connected to the outer surface of the second fixed sleeve (36); the outer surface of the second fixed sleeve (36) is fixedly connected to a first limiting ring (364). The inner wall of the first connecting sleeve (363) is provided with a first limiting groove (365); the outer surface of the first limiting ring (364) is slidably connected to the outer surface of the first limiting groove (365); the inner wall of the first connecting sleeve (363) is provided with a first internal thread (366); the first internal thread (366) is adapted to the first external thread (11).

4. The flameproof armored double-sealed cable entry device according to claim 3, characterized in that: The second limiting assembly comprises a first fixed sleeve (3) whose inner wall is slidably connected to a second connecting sleeve (37), an outer surface of the second connecting sleeve (37) is fixedly connected to a second limiting ring (371), an inner wall of the first fixed sleeve (3) is provided with a second limiting groove (372), an outer surface of the second limiting ring (371) is slidably connected to the inner wall of the second limiting groove (372), and an outer surface of the connecting member (1) is provided with a second connecting thread (12).

5. The flameproof armored double-sealed cable entry device according to claim 4, characterized in that: The second connecting assembly comprises a second internal thread (373) arranged on the inner wall of the second connecting sleeve (37), and the second internal thread (373) is adapted to the second connecting thread (12).

6. The flameproof armored double-sealed cable entry device according to claim 5, characterized in that: A sealing gasket (35) is fixedly connected to the outer surface of the cable (2), and an anti-slip pattern (374) is provided on the outer surface of the second connecting sleeve (37).

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