An explosion-proof cable sealing joint

Abstract

The utility model discloses an explosion-proof cable sealing joint, and relates to the technical field of explosion-proof cables. The utility model includes a sleeve 1 and a sleeve 2, and is characterized in that: a buffer mechanism, a limit mechanism and a positioning mechanism are arranged on the sleeve 2; the buffer mechanism includes a connecting sleeve 2 fixedly and slidably connected to the outer surface of the sleeve 2, the outer surface of the cable 2 is slidably connected with a fixing ring, the outer surface of the sleeve 2 is fixedly connected with the fixing sleeve, the inner walls of the two fixing sleeves are both slidably connected with sliding rods, the two sliding rods are fixedly connected with the slider, the outer surfaces of the two sliding rods are both fixedly connected with pistons, the outer surfaces of the two pistons are both slidably connected with the inner walls of the two fixing sleeves, and the outer surfaces of the two sliding rods are both wound with springs. The utility model is provided with a buffer mechanism, which can well buffer the tension at the connection between the cable 1 and the cable 2, thereby ensuring the stable connection of the two cables during operation.

Description

Technical Field

[0001] The utility model belongs to the technical field of explosion-proof cables, in particular to an explosion-proof cable sealing joint. Background Art

[0002] When installing external cables in a cabinet, it is often necessary to open a cabinet mounting hole on the cabinet wall. The explosion-proof cable sealing joint is a fixing installed in the cabinet mounting hole for the external cable to pass through. It is used to enhance the sealing performance between the external cable and the cabinet mounting hole to meet the explosion-proof requirements.

[0003] In the prior art, after searching, it was found that a Chinese patent disclosed "an explosion-proof cable sealing joint", and its application number is "CN202111257033.0". This patent mainly realizes that during the cable sealing installation process, it not only ensures the installation requirements of the sealing installation, but also increases the torque of the spiral to ensure the stability of the clamping, and prevents the occurrence of surface damage caused by excessive force on the cable surface.

[0004] However, the cable is in a certain pre-tightened state after installation to prevent the cable from loosening or shifting due to external force during use. However, if the cable connection is directly subjected to this pre-tightening tension, it may cause certain damage to the connection components and the cable itself. Utility Model Content

[0005] The utility model aims to provide an explosion-proof cable sealing joint, which is provided with a buffer mechanism, so that after the cable one and the cable two are connected, through the cooperation between the slide rod and the spring, when the cable two is in a taut state, the tension at the connection between the cable one and the cable two can be well buffered, thereby solving the problem that the cables are in a certain pre-tightened state after installation, which may cause certain damage to the connecting parts and the cables themselves.

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

[0007] The utility model is an explosion-proof cable sealing joint, comprising a sleeve 1, a sleeve 2 and a cable 2, and is characterized in that: a buffer mechanism, a limit mechanism and a positioning mechanism are arranged on the sleeve 2;

[0008] The buffer mechanism includes a connecting sleeve 2 fixedly and slidably connected to the outer surface of the sleeve 2, the outer surface of the cable 2 is slidably connected with a fixing ring, the outer surface of the sleeve 2 is fixedly connected with two connecting rods, the ends of the two connecting rods are fixedly connected with a fixing sleeve, the inner walls of the two fixing sleeves are provided with shock-absorbing oil, the inner walls of the two fixing sleeves are slidably connected with sliding rods, the two sliding rods penetrate the slider and the fixing ring, the two sliding rods are fixedly connected to the slider, the outer surfaces of the two sliding rods are fixedly connected with pistons, the outer surfaces of the two pistons are slidably connected to the inner walls of the two fixing sleeves, the outer surfaces of the two sliding rods are wound with springs, the corresponding upper end of the spring is fixedly connected to the inner wall of the fixing sleeve, and the end of the spring is fixedly connected to the corresponding side surface on the piston.

[0009] Furthermore, the limiting mechanism includes a limiting ring fixedly connected to the right side surface of sleeve one, the right side surface of sleeve one is slidably connected with a fixed cone cylinder, the left side surface of the fixed cone cylinder is provided with a limiting groove, the limiting ring is adapted to the limiting groove, and the outer surface of the limiting ring is slidably connected to the inner wall of the limiting groove.

[0010] Furthermore, the positioning mechanism includes a connecting component and a sealing component, the connecting component includes a connecting sleeve 1 fixedly connected to the outer surface of the fixed cone, the outer surface of the connecting sleeve 1 is provided with an external thread, the inner wall of the connecting sleeve 2 is provided with an internal thread, the internal thread is adapted to the external thread, and the connecting sleeve 1 is threadedly connected to the connecting sleeve 2.

[0011] Furthermore, the sealing assembly includes a sealing gasket fixedly connected to the outer surface of the fixed cone, and a sealing groove is provided on the left side surface of the connecting sleeve 2, and the sealing gasket is adapted to the sealing groove.

[0012] Furthermore, the outer surface of the second sleeve is provided with two slide grooves, the inner wall of the connecting sleeve is fixedly connected with two sliders, the two slide grooves are adapted to the sliders, and the inner walls of the two slide grooves are slidably connected to the outer surfaces of the sliders.

[0013] Furthermore, the inner wall of the sleeve one is fixedly connected to the cable one, and the inner wall of the sleeve two is fixedly connected to the cable two.

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

[0015] 1. By providing a buffer mechanism, after the cable 1 and the cable 2 are connected, through the cooperation between the slide rod and the spring, when the cable 2 is in a taut state, the tension at the connection between the cable 1 and the cable 2 can be well buffered to avoid excessive force or disconnection at the connection due to direct tension transmission, thereby ensuring the stable connection of the two cables during work.

[0016] 2. By providing a positioning mechanism, the internal thread and the external thread cooperate with each other. When the connecting sleeve 2 is stationary, the connecting sleeve 1 can be rotated to make it threadedly connected with the connecting sleeve 2, thereby fixing the connecting sleeve 1 and the connecting sleeve 2, and the sealing gasket and the sealing groove cooperate with each other, so that the sealing gasket can seal the connection between the connecting sleeve 1 and the connecting sleeve 2, which can ensure the integrity and reliability of the connection part, so that the entire connection structure works in a protective and well-sealed environment.

[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 an explosion-proof cable sealing joint of the utility model;

[0020] Figure 2 This is a schematic cross-sectional structure diagram of a sleeve 1 of an explosion-proof cable sealing joint of the utility model;

[0021] Figure 3 It is a schematic cross-sectional structure diagram of a connecting sleeve 2 of an explosion-proof cable sealing joint of the utility model;

[0022] Figure 4 This is a schematic cross-sectional structure diagram of a sleeve 2 of an explosion-proof cable sealing joint of the utility model;

[0023] Figure 5 The utility model is an explosion-proof cable sealing joint Figure 4 Schematic diagram of the enlarged structure at point A in the middle.

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

[0025] 1. Sleeve 1; 2. Sleeve 2; 3. Cable 1; 4. Cable 2; 11. Fixed cone; 12. Limiting ring; 13. Limiting groove; 14. Sealing gasket; 15. Connecting sleeve 1; 16. External thread; 21. Connecting sleeve 2; 22. Slide groove; 23. Sliding block; 24. Sealing groove; 25. Internal thread; 26. Fixed ring; 27. Fixed sleeve; 271. Shock-absorbing oil; 272. Sliding rod; 273. Piston; 274. Spring; 28. Connecting rod. 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 an explosion-proof cable sealing joint, comprising a sleeve 1, a sleeve 2 and a cable 4, characterized in that a buffer mechanism, a limit mechanism and a positioning mechanism are arranged on the sleeve 2;

[0028] The buffer mechanism includes a connecting sleeve 21 fixedly and slidably connected to the outer surface of the sleeve 2, a fixing ring 26 is slidably connected to the outer surface of the cable 24, two connecting rods 28 are fixedly connected to the outer surface of the sleeve 2, and the ends of the two connecting rods 28 are fixedly connected to the fixing sleeves 27, the inner walls of the two fixing sleeves 27 are provided with shock-absorbing oil 271, the inner walls of the two fixing sleeves 27 are slidably connected to sliding rods 272, the two sliding rods 272 penetrate the slider 23, the two sliding rods 272 are fixedly connected to the slider 23, the outer surfaces of the two sliding rods 272 are fixedly connected to pistons 273, the outer surfaces of the two pistons 273 are slidably connected to the inner walls of the two fixing sleeves 27, the outer surfaces of the two sliding rods 272 are wound with springs 274, the corresponding upper end of the spring 274 is fixedly connected to the inner wall of the fixing sleeve 27, and the end of the spring 274 is fixedly connected to the corresponding side surface of the piston 273.

[0029] Among them Figure 2 As shown, the limiting mechanism includes a limiting ring 12 fixedly connected to the right side surface of the sleeve 1, the right side surface of the sleeve 1 is slidably connected with a fixed cone 11, the left side surface of the fixed cone 11 is provided with a limiting groove 13, the limiting ring 12 is adapted to the limiting groove 13, and the outer surface of the limiting ring 12 is slidably connected to the inner wall of the limiting groove 13.

[0030] By setting a limiting mechanism, the limiting ring 12 and the limiting groove 13 cooperate with each other to limit the fixed cone 11, so that the fixed cone 11 can only rotate on the right side surface of the sleeve 1.

[0031] Among them Figure 2 and Figure 3As shown, the positioning mechanism includes a connecting component and a sealing component. The connecting component includes a connecting sleeve 15 fixedly connected to the outer surface of the fixed cone 11. The outer surface of the connecting sleeve 15 is provided with an external thread 16. The inner wall of the connecting sleeve 21 is provided with an internal thread 25. The internal thread 25 is adapted to the external thread 16. The connecting sleeve 15 is threadedly connected to the connecting sleeve 2 21.

[0032] By providing a positioning mechanism and cooperating with a limiting mechanism, the internal thread 25 and the external thread 16 cooperate with each other. When the connecting sleeve 21 is stationary, the connecting sleeve 15 can be rotated to be threadedly connected with the connecting sleeve 21, thereby fixing the connecting sleeve 15 and the connecting sleeve 21.

[0033] Among them Figure 2 and Figure 3 As shown, the sealing assembly includes a sealing gasket 14 fixedly connected to the outer surface of the fixed cone 11 , and a sealing groove 24 is provided on the left surface of the connecting sleeve 21 , and the sealing gasket 14 is adapted to the sealing groove 24 .

[0034] By providing a sealing assembly, the sealing gasket 14 cooperates with the sealing groove 24 so that the sealing gasket 14 can seal the connection between the connecting sleeve 15 and the connecting sleeve 2 21, thereby ensuring the integrity and reliability of the connection part and making the entire connection structure work in a protective and well-sealed environment.

[0035] Among them Figure 3 As shown, the outer surface of the sleeve 2 is provided with two slide grooves 22, and the inner wall of the connecting sleeve 21 is fixedly connected with two sliders 23, the two slide grooves 22 are adapted to the sliders 23, and the inner walls of the two slide grooves 22 are slidably connected to the outer surfaces of the sliders 23.

[0036] The slide groove 22 and the slider 23 are provided to cooperate with each other so that the connecting sleeve 21 can only slide left and right on the outer surface of the sleeve 2.

[0037] Among them Figure 2 and Figure 3 As shown, the inner wall of sleeve 1 is fixedly connected with cable 1 3 , and the inner wall of sleeve 2 2 is fixedly connected with cable 2 4 .

[0038] By providing the sleeve 1 and the sleeve 2, both of which are made of explosion-proof materials, fire sources and explosion sources can be effectively isolated, preventing dangerous factors such as sparks or explosions from damaging the cable connection.

[0039] A specific application of this embodiment is: by providing a buffer mechanism, after the cable 1 3 and the cable 2 4 are connected, the slide bar 272 and the spring 274 cooperate with each other, and when the cable 2 4 is in a taut state, the tension can be well buffered at the connection between the cable 1 3 and the cable 2 4, avoiding excessive force or disconnection at the connection due to direct tension transmission, thereby ensuring the stable connection of the two cables during operation; by providing a limiting mechanism, the limiting ring 12 and the limiting groove 13 cooperate with each other to limit the fixed cone 11, so that the fixed cone 11 can only rotate on the right side surface of the sleeve 1; by providing a positioning mechanism, cooperating with the limiting mechanism, the internal thread 25 and the external thread 16 cooperate with each other, and the connecting sleeve 2 21 can be rotated when it does not move. One 15 is threadedly connected with the connecting sleeve two 21, so that the connecting sleeve one 15 and the connecting sleeve two 21 are fixed; by providing a sealing component, the sealing gasket 14 and the sealing groove 24 cooperate with each other, so that the sealing gasket 14 can seal the connection between the connecting sleeve one 15 and the connecting sleeve two 21, which can ensure the integrity and reliability of the connection part, so that the entire connection structure works in a protective and well-sealed environment; by providing a sliding groove 22 and a sliding block 23, they cooperate with each other, so that the connecting sleeve two 21 can only slide left and right on the outer surface of the sleeve two 2; by providing sleeve one 1 and sleeve two 2, both of which are made of explosion-proof material, they can effectively isolate fire sources and explosion sources, and prevent sparks or explosions and other dangerous factors from damaging the cable connection.

[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. An explosion-proof cable sealing joint, comprising a sleeve 1 (1), a sleeve 2 (2) and a cable 2 (4), characterized in that: The sleeve 2 (2) is provided with a buffer mechanism, a limit mechanism and a positioning mechanism; The buffer mechanism comprises a connecting sleeve (21) fixedly and slidably connected to the outer surface of the sleeve (2); the outer surface of the cable (4) is slidably connected to a fixing ring (26); the outer surface of the sleeve (2) is fixedly connected to two connecting rods (28); the ends of the two connecting rods (28) are fixedly connected to fixing sleeves (27); the inner walls of the two fixing sleeves (27) are both provided with shock absorbing oil (271); the inner walls of the two fixing sleeves (27) are both slidably connected to sliding rods (272); the two sliding rods (272) penetrate the slider (23), the two sliding rods (272) are fixedly connected to the slider (23), the outer surfaces of the two sliding rods (272) are fixedly connected to the pistons (273), the outer surfaces of the two pistons (273) are slidably connected to the inner walls of the two fixed sleeves (27), the outer surfaces of the two sliding rods (272) are wound with springs (274), the corresponding upper ends of the springs (274) are fixedly connected to the inner wall of the fixed sleeves (27), and the end of the springs (274) is fixedly connected to the corresponding side surface of the piston (273).

2. The explosion-proof cable gland according to claim 1, characterized in that: The limiting mechanism comprises a limiting ring (12) fixedly connected to the right side surface of the sleeve (1); the right side surface of the sleeve (1) is slidably connected to a fixed cone (11); a limiting groove (13) is provided on the left side surface of the fixed cone (11); the limiting ring (12) is matched with the limiting groove (13); and the outer surface of the limiting ring (12) is slidably connected to the inner wall of the limiting groove (13).

3. An explosion-proof cable sealing joint according to claim 2, characterized in that: The positioning mechanism comprises a connecting assembly and a sealing assembly, wherein the connecting assembly comprises a connecting sleeve 1 (15) fixedly connected to the outer surface of a fixed cone (11), the outer surface of the connecting sleeve 1 (15) is provided with an external thread (16), the inner wall of the connecting sleeve 2 (21) is provided with an internal thread (25), the internal thread (25) is adapted to the external thread (16), and the connecting sleeve 1 (15) is threadedly connected to the connecting sleeve 2 (21).

4. The explosion-proof cable sealing joint according to claim 3, characterized in that: The sealing assembly comprises a sealing gasket (14) fixedly connected to the outer surface of the fixed cone (11); a sealing groove (24) is provided on the left side surface of the second connecting sleeve (21); and the sealing gasket (14) is adapted to fit the sealing groove (24).

5. The explosion-proof cable gland according to claim 1, characterized in that: The outer surface of the second sleeve (2) is provided with two slide grooves (22), and the inner wall of the second connecting sleeve (21) is fixedly connected with two sliders (23). The two slide grooves (22) are adapted to the sliders (23), and the inner walls of the two slide grooves (22) are slidably connected to the outer surfaces of the sliders (23).

6. The explosion-proof cable gland according to claim 1, characterized in that: The inner wall of the sleeve one (1) is fixedly connected to the cable one (3), and the inner wall of the sleeve two (2) is fixedly connected to the cable two (4).

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