Novel fireproof cable sealing sleeve

Abstract

The utility model discloses a novel fireproof cable sealing sleeve, which belongs to the technical field of cable sealing sleeves and comprises two wrapping shells, the outer surface of each wrapping shell is fixedly connected with a first flame-retardant rubber sleeve, and one side surfaces, far away from each other, of the two wrapping shells are fixedly connected with elastic threaded shells. The inner wall of each elastic threaded shell is fixedly connected with a flame-retardant rubber ring, the inner wall of each flame-retardant rubber ring is fixedly connected with a flame-retardant sponge ring, and the outer surface of each elastic threaded shell is in threaded connection with a locking shell. According to the novel fireproof cable sealing sleeve, through the wrapping shell, the first flame-retardant rubber sleeve, the elastic threaded shell, the flame-retardant rubber ring, the flame-retardant sponge ring, the locking shells, the flame-retardant rubber pad, the second flame-retardant rubber sleeve and the flame-retardant sponge block, the two locking shells, the wrapping shell and the elastic threaded shell are combined and can be arranged on the two sides of a cable wiring end in a sleeving mode respectively; the extrusion threaded connection of the locking shell and the elastic threaded shell can enable the flame-retardant rubber ring and the flame-retardant sponge ring to tightly wrap the outer surface of the cable.

Description

Technical Field

[0001] The present invention relates to the technical field of cable glands, and in particular to a novel fireproof cable gland. Background Art

[0002] Cable glands, also known as rope clamps or cable accessories, are usually made of plastic, stainless steel or aluminum. Their main function is to protect the cable connection from the influence of the external environment, such as preventing dust, water and moisture from entering the cable connection, thereby ensuring the transmission performance and reliability of the cable. In addition, cable glands can also provide certain mechanical protection to prevent the cable connection from being damaged by external forces.

[0003] The utility model with the existing authorization announcement number CN208209495U discloses a new cable sealing sleeve, which adopts an EPDM rubber one-piece molding design. The front end of the rubber sleeve is cylindrical, and the rear end is conical and sealed. When sealing the cable, a section of the rear end is cut off, and the cable passes through the cable sealing sleeve. The two ends of the cable sealing sleeve are clamped with clamps. The cut-off length is determined by the length of the cable radius. This design meets the requirements of cables with outer diameters within a certain range, simplifies the design, installation and use of cable sealing, and provides space for future modifications.

[0004] Although the above technical solution simplifies the design, installation and use of cable sealing, the above technical solution lacks a good fireproof structure, resulting in poor overall fireproof performance and limited application scenarios.

[0005] Therefore, we propose a new type of fireproof cable gland to solve the above problems. Utility Model Content

[0006] The purpose of this application is to solve the problem of poor overall fireproof performance and limited application scenarios in the prior art, and to propose a new type of fireproof cable sealing sleeve.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A new type of fireproof cable sealing sleeve, including two wrapping shells, each of which has a first flame-retardant rubber sleeve fixedly connected to its outer surface, and an elastic threaded shell fixedly connected to the side surfaces of the two wrapping shells away from each other, and a flame-retardant rubber ring fixedly connected to the inner wall of each elastic threaded shell, and a flame-retardant sponge ring fixedly connected to the inner wall of each flame-retardant rubber ring, and a locking shell threadedly connected to the outer surface of each elastic threaded shell, and a flame-retardant rubber pad fixedly connected to the inner wall of each locking shell, and a second flame-retardant rubber sleeve fixedly connected to the outer surface of each locking shell, and a flame-retardant sponge block is commonly provided inside the two wrapping shells.

[0009] Preferably, the inner wall of each of the wrapping shells is in contact with the outer surface of the flame-retardant sponge block, the outer surface of each of the first flame-retardant rubber sleeves is fixedly connected to a first anti-slip sleeve, and the outer surface of each of the first anti-slip sleeves is fixedly connected to a plurality of identical first anti-slip protrusions.

[0010] Preferably, a soft sleeve is commonly provided on one side of the two wrapping shells that are close to each other, and the inner wall of the soft sleeve is in contact with the inner wall of the wrapping shell and the outer surface of the first flame-retardant rubber sleeve respectively.

[0011] Preferably, two fastening bolts are commonly arranged inside the two wrapping shells, and the outer surface of each of the fastening bolts is respectively in contact with the inner wall of the wrapping shell, the inner wall of the first flame-retardant rubber sleeve and the inner wall of the flame-retardant sponge block, and the outer surface of each of the fastening bolts is threadedly connected with a fastening nut.

[0012] Preferably, a gasket is sleeved on the outer surface of each of the fastening bolts, and the bottom surface of each of the gaskets is in contact with the upper surface of one of the first flame-retardant rubber sleeves.

[0013] Preferably, the outer surface of each second flame-retardant rubber sleeve is fixedly connected to a second anti-slip sleeve, and the outer surface of each second anti-slip sleeve is fixedly connected to a second anti-slip protrusion.

[0014] In summary, the technical effects and advantages of this application are:

[0015] Through the mutual cooperation of the wrapping shell, the first flame retardant rubber sleeve, the elastic threaded shell, the flame retardant rubber ring, the flame retardant sponge ring, the locking shell, the flame retardant rubber pad, the second flame retardant rubber sleeve and the flame retardant sponge block, the combination of two sets of locking shells, the wrapping shell and the elastic threaded shell can be respectively sleeved on both sides of the cable terminal, and the extrusion threaded connection between the locking shell and the elastic threaded shell can wrap the flame retardant rubber ring and the flame retardant sponge ring tightly around the outer surface of the cable, the flame retardant rubber ring, the flame retardant sponge ring, the flame retardant rubber pad and the flame retardant sponge block can increase the fire resistance of the cable attached position, the first flame retardant rubber sleeve and the second flame retardant rubber sleeve can increase the fire resistance of the outer surface of the sealing sleeve, play a role in comprehensive fire prevention of the cable connection, and avoid the problem of poor overall fire resistance and limited application scenarios due to the lack of good fire protection structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional overall structural schematic diagram of the fireproof cable sealing sleeve of the utility model;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the wrapping shell of the utility model;

[0018] Figure 3 This is a schematic diagram of a three-dimensional structure of the first flame-retardant rubber sleeve of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of a three-dimensional cutaway locking shell of the utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of the flame retardant sponge block of the utility model;

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the soft ferrule of the utility model.

[0022] In the figure: 1. wrapping shell; 2. first flame retardant rubber sleeve; 3. elastic threaded shell; 4. flame retardant rubber ring; 5. flame retardant sponge ring; 6. locking shell; 7. flame retardant rubber pad; 8. second flame retardant rubber sleeve; 9. flame retardant sponge block; 10. soft clamping sleeve; 11. first anti-slip sleeve; 12. first anti-slip boss; 13. second anti-slip sleeve; 14. second anti-slip boss; 15. fastening bolt; 16. fastening nut; 17. gasket. Implementation

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Reference Figure 1-6 A novel fireproof cable sealing sleeve comprises two wrapping shells 1, each wrapping shell 1 has a first flame-retardant rubber sleeve 2 fixedly connected to its outer surface, and an elastic threaded shell 3 fixedly connected to the side surfaces of the two wrapping shells 1 away from each other, and each first flame-retardant rubber sleeve 2 has a first anti-slip sleeve 11 fixedly connected to its outer surface, and each first anti-slip sleeve 11 has a plurality of identical first anti-slip bosses 12 fixedly connected to its outer surface. By providing the first anti-slip sleeve 11, the sealing sleeve itself also has certain fireproof performance, which can prevent the outer surface of the sealing sleeve from fire and increase the friction of the outer surface of the first flame-retardant rubber sleeve 2. By providing the first anti-slip boss 12, the friction of the outer surface of the first anti-slip sleeve 11 can be increased, thereby preventing the hand from slipping when pinching the wrapping shell 1, and increasing the convenience of the overall installation of the sealing sleeve.

[0025] The inner wall of each elastic threaded shell 3 is fixedly connected with a flame retardant rubber ring 4, and the inner wall of each flame retardant rubber ring 4 is fixedly connected with a flame retardant sponge ring 5. A soft sleeve 10 is commonly provided on the side where the two wrapping shells 1 are close to each other. The inner walls of the soft sleeve 10 are respectively in contact with the inner wall of the wrapping shell 1 and the outer surface of the first flame retardant rubber sleeve 2. By providing the soft sleeve 10, it can be clamped between the combination of the two wrapping shells 1 and the first flame retardant rubber sleeve 2. It also has certain fireproof performance, which plays a role in increasing the sealing between the two groups of wrapping shells 1 and the first flame retardant rubber sleeve 2.

[0026] The outer surface of each elastic threaded shell 3 is threadedly connected to a locking shell 6, and the inner wall of each locking shell 6 is fixedly connected to a flame-retardant rubber pad 7. Two fastening bolts 15 are commonly arranged inside the two wrapping shells 1, and the outer surface of each fastening bolt 15 is threadedly connected to a fastening nut 16. The fastening bolts 15 can penetrate the two wrapping shells 1, the first flame-retardant rubber sleeve 2 and the internal structure. The fastening nuts 16 are threadedly connected to the fastening bolts 15 to clamp the two wrapping shells 1, thereby increasing the sealing stability between the two wrapping shells 1.

[0027] The outer surface of each locking shell 6 is fixedly connected to the second flame retardant rubber sleeve 8, and the outer surface of each fastening bolt 15 is sleeved with a gasket 17. The bottom surface of each gasket 17 is in contact with the upper surface of one of the first flame retardant rubber sleeves 2. By providing the gasket 17, it can be padded between the first flame retardant rubber sleeve 2 and the fastening bolt 15, thereby increasing the fastening effect of the fastening bolt 15.

[0028] A flame retardant sponge block 9 is commonly provided inside the two wrapping shells 1, the inner wall of each wrapping shell 1 is in contact with the outer surface of the flame retardant sponge block 9, the outer surface of each fastening bolt 15 is in contact with the inner wall of the wrapping shell 1, the inner wall of the first flame retardant rubber sleeve 2 and the inner wall of the flame retardant sponge block 9 respectively, the outer surface of each second flame retardant rubber sleeve 8 is fixedly connected with a second anti-slip sleeve 13, and the outer surface of each second anti-slip sleeve 13 is fixedly connected with a second anti-slip boss 14. By providing the second anti-slip sleeve 13 and the second anti-slip boss 14, both have a certain fire resistance, the second anti-slip boss 14 can increase the friction force of the outer surface of the second anti-slip sleeve 13, and the two can jointly increase the friction force of the outer surface of the second flame retardant rubber sleeve 8, thereby facilitating the twisting of the locking shell 6 when pinching the locking shell 6.

[0029] The working principle of the utility model is: when in use, the combination of the locking shell 6, the flame retardant rubber pad 7 and the second flame retardant rubber sleeve 8 and the combination of the wrapping shell 1, the first flame retardant rubber sleeve 2, the elastic threaded shell 3, the flame retardant rubber ring 4 and the flame retardant sponge ring 5 are respectively put on the two sections of the cable at the cable to be connected, and the flame retardant sponge block 9 is also first put on one of the sections of the cable and put into one of the wrapping shells 1. After that, after the two sections of the cable are connected, the soft card sleeve 10 is first put on one of the wrapping shells 1 and the first flame retardant rubber sleeve 2, and then the flame retardant sponge block 9 is completely wrapped around the cable connection, and then the two wrapping shells 1 and the first flame retardant rubber sleeve 2 are moved, and the two groups of wrapping shells 1 and the first flame retardant rubber sleeve 2 are both Insert it into the soft clamping sleeve 10, and then use two fastening bolts 15 to pass through the two first flame retardant rubber sleeves 2, the two wrapping shells 1 and the flame retardant sponge block 9 respectively, and then use the fastening nut 16 to threadably connect the fastening bolt 15 with the gasket 17, and finally pinch the second anti-slip sleeves 13 and the second anti-slip boss 14 on the outside of the two locking shells 6 to rotate the locking shell 6, so that the locking shell 6 is finally squeezed and threadedly connected to the elastic threaded shell 3, and the flame retardant rubber ring 4 and the flame retardant sponge ring 5 are also squeezed on the outer surface of the cable, that is, the connection of the sealing sleeve is completed. The design of the entire new fire-proof cable sealing sleeve effectively solves the problem of poor overall fire resistance and limited application scenarios due to the lack of a good fire-proof structure.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A novel fireproof cable gland, comprising two wrapping shells (1), Features: The outer surface of each wrapping shell (1) is fixedly connected to a first flame-retardant rubber sleeve (2); the side surfaces of the two wrapping shells (1) that are away from each other are fixedly connected to an elastic threaded shell (3); the inner wall of each elastic threaded shell (3) is fixedly connected to a flame-retardant rubber ring (4); the inner wall of each flame-retardant rubber ring (4) is fixedly connected to a flame-retardant sponge ring (5); the outer surface of each elastic threaded shell (3) is threadedly connected to a locking shell (6); the inner wall of each locking shell (6) is fixedly connected to a flame-retardant rubber pad (7); the outer surface of each locking shell (6) is fixedly connected to a second flame-retardant rubber sleeve (8); and a flame-retardant sponge block (9) is commonly provided inside the two wrapping shells (1).

2. A new type of fireproof cable gland according to claim 1, Features: The inner wall of each of the wrapping shells (1) is in contact with the outer surface of the flame-retardant sponge block (9), the outer surface of each of the first flame-retardant rubber sleeves (2) is fixedly connected to a first anti-slip sleeve (11), and the outer surface of each of the first anti-slip sleeves (11) is fixedly connected to a plurality of identical first anti-slip protrusions (12).

3. A new type of fireproof cable gland according to claim 1, Features: A soft sleeve (10) is provided on one side of the two wrapping shells (1) that are close to each other, and the inner wall of the soft sleeve (10) is in contact with the inner wall of the wrapping shell (1) and the outer surface of the first flame-retardant rubber sleeve (2) respectively.

4. A new type of fireproof cable gland according to claim 1, Features: Two fastening bolts (15) are commonly disposed inside the two wrapping shells (1), and the outer surface of each of the fastening bolts (15) is in contact with the inner wall of the wrapping shell (1), the inner wall of the first flame-retardant rubber sleeve (2), and the inner wall of the flame-retardant sponge block (9), respectively, and the outer surface of each of the fastening bolts (15) is threadedly connected with a fastening nut (16).

5. A new type of fireproof cable gland according to claim 4, Features: A gasket (17) is sleeved on the outer surface of each of the fastening bolts (15), and the bottom surface of each of the gaskets (17) is in contact with the upper surface of one of the first flame-retardant rubber sleeves (2).

6. A new type of fireproof cable gland according to claim 1, Features: The outer surface of each second flame-retardant rubber sleeve (8) is fixedly connected to a second anti-slip sleeve (13), and the outer surface of each second anti-slip sleeve (13) is fixedly connected to a second anti-slip convex column (14).

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