Ethylene-propylene-diene monomer cold contraction pipe

Abstract

The utility model discloses an ethylene-propylene-diene monomer rubber cold shrink tube, which comprises a cold shrink tube main body and two positioning assemblies, the cold shrink tube main body is composed of a drawable support tube and an EPDM rubber tube, and each positioning assembly comprises a bushing seat coaxially sleeved outside a cable and an end coaxially arranged on the inner side of the bushing seat for sleeving the EPDM. The two screws respectively penetrate through the two sides of the end in a threaded mode and are used for positioning the end, and the top of the inner wall of the end and the top of the lining base are respectively provided with a notch and a through hole base which are used for penetrating through a tap of the extractable supporting pipe. According to the ethylene propylene diene monomer cold contraction pipe, the two positioning assemblies arranged at the two ends of the cold contraction pipe body in a matched mode are arranged, when the extractable supporting pipe taps are pulled out, positioning of the EPDM rubber pipe is formed, the coating effect is ensured, in addition, through the arrangement of the notches and the through hole bases, a path for penetrating through the extractable supporting pipe taps can be formed, and therefore the covering effect is improved. And the stable drawing action of an operator is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of communication cable accessories, in particular to an ethylene propylene diene monomer (EPDM) rubber cold shrinkable tube. Background Art

[0002] The EPDM rubber cold shrinkable tube is an insulating sleeve made of EPDM rubber. It is pre-expanded on a drawable support tube through cold shrinkage technology. During use, only the support tube needs to be drawn out after positioning, and its radial shrinkage force is utilized to form a tight coating, playing roles of insulation, dust prevention, waterproofing, and sealing.

[0003] In the process of implementing the present invention, the inventor found that there are at least the following problems in the prior art:

[0004] In the specific installation process of the EPDM rubber cold shrinkable tube, the operator sleevs the cold shrinkable tube on a predetermined position of the cable. One hand holds the cold shrinkable tube and the cable, and the other hand pulls the draw head of the drawable support tube. When the drawable support tube is pulled out and the cold shrinkable tube is completely shrunk and coated outside the predetermined position of the cable, since the EPDM rubber tube will shrink when the support tube is pulled out, in the actual operation process, it is not convenient to position only by one hand of the operator. During the pulling process of the support tube, the end position of the EPDM rubber tube is likely to shift, even affecting the coating effect, and it is difficult to adjust the position of the shrunk EPDM rubber tube.

[0005] Therefore, the above technical problems need to be solved. Content of the Utility Model

[0006] In order to overcome the deficiencies of the prior art, the utility model provides an EPDM rubber cold shrinkable tube, which solves the problem that it is not convenient to position only by one hand of the operator during the actual installation process of the current EPDM rubber cold shrinkable tube.

[0007] In order to solve the above technical problems, the basic technical solution proposed by the utility model is as follows:

[0008] An EPDM rubber cold shrinkable tube includes a cold shrinkable tube main body sleeved outside the cable and two positioning components symmetrically distributed and respectively arranged at both ends of the cold shrinkable tube main body.

[0009] The cold shrinkable tube main body is composed of a drawable support tube and an EPDM rubber tube pre-expanded and sleeved outside the drawable support tube.

[0010] The positioning component includes a bushing seat coaxially sleeved outside the cable, a head coaxially arranged inside the bushing seat for the EPDM to be sleeved, and two screws respectively threadedly penetrating through both sides of the head for positioning the head. Grooves and through-hole seats for the draw head of the drawable support tube to penetrate are respectively arranged at the top of the inner wall of the head and the top of the bushing seat.

[0011] Preferably, anti-slip patterns are provided on the outer wall of the end head and are integrally connected thereto. Among them, as the extractable support tube is withdrawn, the end of the EPDM rubber tube will be sleeved outside the end head. As a preference, by providing anti-slip patterns, the firmness and stability of the EPDM rubber tube sleeved inside the positioning component after contraction can be ensured.

[0012] Preferably, it further includes a hole cover that can be movably buckled on the top of the through-hole seat. Among them, the through-hole seat provides structural support for the penetration of the tap. When the installation of the cold-shrinkable tube body is completed, the extractable support tube is completely pulled out. At this time, the through-hole seat can be blocked by means of the hole cover.

[0013] Preferably, it further includes a plug coaxially sleeved outside the cable for encapsulating the outside of the bushing seat, and the plug is threadedly assembled with the bushing seat. Among them, after the installation of the cold-shrinkable tube body is completed, the notch that provides a penetration structure for the tap of the extractable support tube will have a certain impact on the sealing performance of the end of the EPDM rubber tube. As a preference, by providing a plug that can be threadedly assembled outside the bushing seat, the sealing effect can be further optimized.

[0014] Preferably, it further includes two PVC electrical tape layers respectively arranged at both ends of the cold-shrinkable tube body, and both of the PVC electrical tape layers are wound and wrapped around the cable along the axial direction of the cold-shrinkable tube body. As a preference, by sequentially winding PVC electrical tape around the cable at both ends of the cold-shrinkable tube body, two PVC electrical tape layers respectively padded between the two positioning components and the outer wall of the cable can be formed, further optimizing the sealing effect.

[0015] The beneficial effects of the present utility model are:

[0016] In the technical solution of the present utility model, by providing two positioning components respectively arranged at both ends of the cold-shrinkable tube body, when pulling the tap of the extractable support tube, positioning of the EPDM rubber tube is formed, ensuring the covering effect. In addition, by providing a notch and a through-hole seat, a path for the penetration of the tap of the extractable support tube can be formed, which helps the operator to perform a stable pulling action. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of an embodiment of the present utility model;

[0018] Figure 2 It is a schematic structural diagram of the cold-shrinkable tube body of the present utility model;

[0019] Figure 3 It is a schematic structural diagram of the positioning component of the present utility model;

[0020] Figure 4 It is a schematic structural diagram of the bushing seat of the present utility model;

[0021] Figure 5 This is a schematic cross-sectional view of the bushing seat of the present utility model;

[0022] Figure 6 This is a schematic structural view of the plug of the present utility model;

[0023] Figure 7 This is a schematic structural view of the PVC electrical tape layer of the present utility model;

[0024] Explanation of reference numerals in the drawings:

[0025] 100, cold shrinkable tube body;

[0026] 110, extractable support tube; 120, EPDM rubber tube;

[0027] 200, positioning assembly;

[0028] 210, bushing seat; 220, end; 230, screw; 240, notch; 250, through-hole seat; 260, anti-slip pattern; 270, hole cover; 280, plug;

[0029] 300, PVC electrical tape layer. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0031] Please refer to Figure 1-7 , the present utility model provides a technical solution: a ternary ethylene propylene rubber cold shrinkable tube, including a cold shrinkable tube body 100 sleeved outside the cable and two positioning assemblies 200 symmetrically distributed and respectively arranged at both ends of the cold shrinkable tube body 100. The cold shrinkable tube body 100 is composed of an extractable support tube 110 and an EPDM rubber tube 120 pre-expanded and sleeved outside the extractable support tube 110. The positioning assembly 200 includes a bushing seat 210 coaxially sleeved outside the cable and an end 220 coaxially arranged inside the bushing seat 210 for EPDM socket connection, and two screws 230 respectively threaded through both sides of the end 220 for positioning the end 220. The top of the inner wall of the end 220 and the top of the bushing seat 210 are respectively provided with a notch 240 and a through-hole seat 250 for the extraction head of the extractable support tube 110 to penetrate.

[0032] Based on the above structure settings, this EPDM rubber cold-shrinkable tube is composed of a cold-shrinkable tube body 100 and two positioning components 200. Among them, the cold-shrinkable tube body 100 and the two positioning components 200 are both sleeved on the outside of the cable. The two positioning components 200 are respectively arranged at both ends of the cold-shrinkable tube body 100 to position the cold-shrinkable tube body 100. Specifically, during the installation process, the operator first sleeved the cold-shrinkable tube body 100 and the two positioning components 200 on the outside of the cable. The two positioning components 200 are symmetrically distributed and respectively arranged at both ends of the cold-shrinkable tube body 100. And the cold-shrinkable tube body 100 is moved to the position of the cable to be coated with the above layout. Subsequently, the operator adjusts the positions of the two positioning components 200 in sequence and fixes the two positioning components 200 on the cable with the help of screws 230 in sequence. It should be noted that before fixing one of the positioning components 200, the tap of the extractable support tube 110 can be sequentially penetrated through the notch 240 and the through-hole seat 250 of this positioning component 200. Finally, the operator only needs to perform a pulling action on the tap extended from this positioning component 200 until the extractable support tube 110 is completely pulled out. Under the limitation of the two positioning components 200, the EPDM rubber tube 120 shrinks and wraps around the outside of the cable at the predetermined position as the extractable support tube 110 is pulled out. This EPDM rubber cold-shrinkable tube, by being equipped with two positioning components 200 respectively arranged at both ends of the cold-shrinkable tube body 100, forms the positioning of the EPDM rubber tube 120 when performing a pulling action on the tap of the extractable support tube 110, ensuring the coating effect. In addition, by providing the notch 240 and the through-hole seat 250, a path for the tap of the extractable support tube 110 to penetrate can be formed, which helps the operator perform a stable pulling action.

[0033] Further, anti-slip lines 260 integrally connected therewith are provided on the outer wall of the end head 220.

[0034] Further, a hole cover 270 that can be movably buckled on the top of the through-hole seat 250 is further included.

[0035] Further, a plug 280 coaxially sleeved on the outside of the cable for encapsulating the outside of the bushing seat 210 is further included, and the plug 280 is threadedly assembled with the bushing seat 210.

[0036] Further, two PVC electrical tape layers 300 respectively arranged at both ends of the cold-shrinkable tube body 100 are further included, and the two PVC electrical tape layers 300 are both wound and wrapped around the outside of the cable along the axial direction of the cold-shrinkable tube body 100.

[0037] Based on the disclosure and teachings of the above specification, those skilled in the art to which the present utility model pertains can also make changes and modifications to the above embodiments. Therefore, the present utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present utility model should also fall within the scope of protection of the claims of the present utility model. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present utility model.

Claims

1. An EPDM rubber cold shrink tube, comprising a cold shrink tube body (100) sleeved on the outside of a cable and two positioning components (200) symmetrically distributed and respectively arranged at two ends of the cold shrink tube body (100); The cold shrink tube body (100) is composed of a removable support tube (110) and an EPDM rubber tube (120) pre-expanded and sleeved outside the removable support tube (110); It is characterized in that: The positioning assembly (200) comprises a bushing seat (210) coaxially sleeved on the outside of the cable and an end head (220) coaxially sleeved on the inner side of the bushing seat (210) for EPDM sleeve connection, and two screws (230) respectively threadedly penetrated through two sides of the end head (220) for positioning the end head (220), and the top of the inner wall of the end head (220) and the top of the bushing seat (210) are respectively provided with a notch (240) and a through hole seat (250) for the withdrawal of the withdrawable support tube (110) to penetrate.

2. The cold-shrinkable tube made of ethylene propylene diene monomer rubber according to claim 1, wherein: The outer wall of the end head (220) is provided with anti-slip patterns (260) integrally connected thereto.

3. The cold-shrinkable tube made of ethylene propylene diene monomer rubber according to claim 1, wherein: It also includes a hole cover (270) which can be movably buckled on the top of the through hole seat (250).

4. The cold-shrinkable tube made of ethylene propylene diene monomer rubber according to claim 1, characterized in that: It also includes a plug (280) coaxially sleeved on the outside of the cable for encapsulating the outside of the bushing seat (210), and the plug (280) is threadedly assembled with the bushing seat (210).

5. A cold-shrinkable EPDM rubber tube according to claim 1, characterized in that: It also includes two PVC electrical tape layers (300) respectively arranged at two ends of the cold shrink tube body (100), and the two PVC electrical tape layers (300) are both wrapped around the outside of the cable along the axial direction of the cold shrink tube body (100).

Images