Combined high-temperature-resistant PVC (polyvinyl chloride) heat-shrinkable sleeve
By designing a combined structure in the PVC heat shrink sleeve, the rotation sleeve and the connecting head are used to cooperate with each other, the sleeve is quickly assembled and efficiently blocked external high temperatures, solving the problems of cumbersome assembly and insufficient high temperature resistance in the prior art.
Patent Information
- Application Number
- CN202421938243.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-08-12
AI Technical Summary
When splicing existing PVC heat shrink sleeves, the flange assembly requires multiple bolts, which is cumbersome and not simple enough.
A combined high-temperature resistant PVC heat shrink sleeve is designed, and rapid assembly is achieved through the mutual cooperation between the rotating sleeve, the second external thread, the connecting head, the second internal thread, the first internal thread and the first external thread.
The rapid assembly of PVC heat shrink sleeve is achieved, the assembly efficiency is improved, and the external high temperature is effectively blocked through the coordination of high-temperature protective layer, thermal insulation layer and flame retardant layer, and the service life and flame retardant performance of the sleeve are improved.
Smart Images
Figure CN223014074U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of PVC heat-shrinkable sleeves, in particular to a combined high-temperature-resistant PVC heat-shrinkable sleeve. Background Technique
[0002] PVC heat-shrinkable sleeves are divided into two major series of 85°C, 105°C, and 125°C according to temperature resistance, with specifications of Φ2-Φ200. The products comply with the EU RoHS environmental protection directive. They are used for electrolytic capacitors and inductors, have good high-temperature resistance, no secondary shrinkage, and can be printed; they are also used for the single-body and combined packaging of various rechargeable batteries, and can be designed, printed with patterns, and cut.
[0003] When the existing PVC heat-shrinkable sleeves are spliced, they are usually simply assembled by flanges. This assembly method requires the installation of multiple bolts, which is troublesome and laborious and not simple enough. In order to more conveniently assemble two PVC heat-shrinkable sleeves, a combined high-temperature-resistant PVC heat-shrinkable sleeve needs to be designed. Summary of the Invention
[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art and propose a combined high-temperature-resistant PVC heat-shrinkable sleeve.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a combined high-temperature-resistant PVC heat-shrinkable sleeve, including a first PVC heat-shrinkable sleeve and a second PVC heat-shrinkable sleeve. The first PVC heat-shrinkable sleeve is located at the far left end of the second PVC heat-shrinkable sleeve. Both the first PVC heat-shrinkable sleeve and the second PVC heat-shrinkable sleeve include an inner tube, a high-temperature protection layer, an insulating layer, a first heat-insulating layer, a nylon layer, a flame-retardant layer, and a second heat-insulating layer. The circumferential surface of the inner tube is fixedly connected with the high-temperature protection layer. The circumferential surface of the high-temperature protection layer is fixedly connected with the insulating layer. The circumferential surface of the insulating layer is fixedly connected with the first heat-insulating layer. The circumferential surface of the first heat-insulating layer is fixedly connected with the nylon layer. The circumferential surface of the nylon layer is fixedly connected with the flame-retardant layer. The circumferential surface of the flame-retardant layer is fixedly connected with the second heat-insulating layer. A rotating sleeve is rotatably connected to the circumferential surface of the second PVC heat-shrinkable sleeve. A second external thread is provided on the circumferential surface of the rotating sleeve. A first external thread is provided on the circumferential surface of the first PVC heat-shrinkable sleeve. The first PVC heat-shrinkable sleeve and the second PVC heat-shrinkable sleeve are connected by a connector. The inside of the connector is provided with a first internal thread and a second internal thread. The connector is connected to the first PVC heat-shrinkable sleeve through the cooperation of the first external thread and the first internal thread. The connector is connected to the rotating sleeve through the cooperation of the second internal thread and the second external thread. The connector is connected to the second PVC heat-shrinkable sleeve through the cooperation of the rotating sleeve.
[0006] Further, a plurality of second grooves are provided on the circumferential surface of the connector.
[0007] Further, a plurality of first grooves are formed on the circumferential surface of the rotating sleeve.
[0008] Further, the high-temperature protective layer is made of polyurethane material with heat insulation performance.
[0009] Further, the insulating layer is made of polyethylene material.
[0010] Further, the first heat insulation layer and the second heat insulation layer are heat insulation cotton and aluminum foil heat insulation cotton respectively.
[0011] Further, the flame retardant layer is made of polyvinyl chloride.
[0012] The utility model has the following beneficial effects:
[0013] 1. Compared with the prior art, for the combined high-temperature resistant PVC heat shrinkable sleeve, through the mutual cooperation of the rotating sleeve, the second external thread, the connecting head, the second internal thread, the first internal thread and the first external thread, it is convenient and fast to assemble the first PVC heat shrinkable sleeve and the second PVC heat shrinkable sleeve. Specifically, by using the cooperation of the first external thread and the first internal thread, the connecting head is installed on the circumferential surface of the first PVC heat shrinkable sleeve, and by using the cooperation of the second external thread and the second internal thread, the rotating sleeve is connected with the connecting head, and then the connecting head is connected with the second PVC heat shrinkable sleeve. At this time, the first PVC heat shrinkable sleeve and the second PVC heat shrinkable sleeve can be quickly assembled under the mutual cooperation of the connecting head and the rotating sleeve.
[0014] 2. Compared with the prior art, for the combined high-temperature resistant PVC heat shrinkable sleeve, through the mutual cooperation of the high-temperature protective layer, the first heat insulation layer and the second heat insulation layer, it can effectively block the external high temperature, weaken the influence of the external high temperature on the first PVC heat shrinkable sleeve and the second PVC heat shrinkable sleeve, and prevent the first PVC heat shrinkable sleeve and the second PVC heat shrinkable sleeve from cracking and damage due to too high external temperature, thereby improving the service life of the first PVC heat shrinkable sleeve and the second PVC heat shrinkable sleeve.
[0015] 3. Compared with the prior art, for the combined high-temperature resistant PVC heat shrinkable sleeve, through the mutual cooperation of the nylon layer and the flame retardant layer, the flame retardant performance of the first PVC heat shrinkable sleeve and the second PVC heat shrinkable sleeve can be improved. Specifically, since the nylon layer is halogen-free flame retardant nylon, it has excellent flame retardant performance and excellent heat resistance, and the flame retardant layer is made of polyvinyl chloride, which has the excellent characteristics of flame retardancy and electrical insulation. The two cooperate to finally improve the flame retardancy of the first PVC heat shrinkable sleeve and the second PVC heat shrinkable sleeve and reduce the probability of the first PVC heat shrinkable sleeve and the second PVC heat shrinkable sleeve catching fire. Description of the Drawings
[0016] Figure 1 Schematic diagram of the overall structure in the front view of the present utility model;
[0017] Figure 2 is Figure 1 enlarged schematic diagram of A in
[0018] Figure 3 explosion structure schematic diagram of the present utility model;
[0019] Figure 4 schematic diagram of the structure after partial section in the front view of the present utility model;
[0020] Figure 5 is Figure 4 enlarged schematic diagram of B in
[0021] Legend description:
[0022] 1. PVC heat shrinkable sleeve one; 101. Inner tube; 102. High-temperature protective layer; 103. Insulating layer; 104. Heat insulation layer one; 105. Nylon layer; 106. Flame retardant layer; 107. Heat insulation layer two; 2. PVC heat shrinkable sleeve two; 3. Rotating sleeve; 4. Connector; 5. First groove; 6. Second groove; 7. First external thread; 8. First internal thread; 9. Second internal thread; 10. Second external thread. Specific embodiments
[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0024] Refer to Figures 1-5, a combined high-temperature resistant PVC heat-shrinkable sleeve provided by the utility model, includes a PVC heat-shrinkable sleeve 1 and a PVC heat-shrinkable sleeve 2. The PVC heat-shrinkable sleeve 1 is located at the exact left end of the PVC heat-shrinkable sleeve 2. Both the PVC heat-shrinkable sleeve 1 and the PVC heat-shrinkable sleeve 2 include an inner tube 101, a high-temperature protection layer 102, an insulating layer 103, a first heat-insulating layer 104, a nylon layer 105, a flame-retardant layer 106, and a second heat-insulating layer 107. The circumferential surface of the inner tube 101 is fixedly connected with the high-temperature protection layer 102. The circumferential surface of the high-temperature protection layer 102 is fixedly connected with the insulating layer 103. The circumferential surface of the insulating layer 103 is fixedly connected with the first heat-insulating layer 104. The circumferential surface of the first heat-insulating layer 104 is fixedly connected with the nylon layer 105. The circumferential surface of the nylon layer 105 is fixedly connected with the flame-retardant layer 106. The circumferential surface of the flame-retardant layer 106 is fixedly connected with the second heat-insulating layer 107. A rotating sleeve 3 is rotatably connected to the circumferential surface of the PVC heat-shrinkable sleeve 2. A second external thread 10 is provided on the circumferential surface of the rotating sleeve 3. A first external thread 7 is provided on the circumferential surface of the PVC heat-shrinkable sleeve 1. The PVC heat-shrinkable sleeve 1 and the PVC heat-shrinkable sleeve 2 are connected by a connector 4. The inside of the connector 4 is provided with a first internal thread 8 and a second internal thread 9. The connector 4 is connected to the PVC heat-shrinkable sleeve 1 through the cooperation of the first external thread 7 and the first internal thread 8. The connector 4 is connected to the rotating sleeve 3 through the cooperation of the second internal thread 9 and the second external thread 10. The connector 4 is connected to the PVC heat-shrinkable sleeve 2 through the cooperation of the rotating sleeve 3. During operation, the utility model facilitates the quick assembly of the PVC heat-shrinkable sleeve 1 and the PVC heat-shrinkable sleeve 2.
[0025] Furthermore, a plurality of second grooves 6 are formed on the circumferential surface of the connector 4; a plurality of first grooves 5 are formed on the circumferential surface of the rotating sleeve 3. During operation, the existence of the second grooves 6 and the first grooves 5 facilitates the manual control of the rotation of the connector 4 and the rotating sleeve 3 respectively, so as to realize the connection between the connector 4 and the PVC heat-shrinkable sleeve 1, and the connection between the connector 4 and the rotating sleeve 3.
[0026] Furthermore, the high-temperature protection layer 102 is made of polyurethane material with heat-insulating properties; the first heat-insulating layer 104 and the second heat-insulating layer 107 are heat-insulating cotton and aluminum foil heat-insulating cotton respectively. During operation, this can effectively block external high temperature, weaken the influence of external high temperature on the PVC heat-shrinkable sleeve 1 and the PVC heat-shrinkable sleeve 2, and prevent the PVC heat-shrinkable sleeve 1 and the PVC heat-shrinkable sleeve 2 from cracking and being damaged due to too high external temperature, thereby improving the service life of the PVC heat-shrinkable sleeve 1 and the PVC heat-shrinkable sleeve 2.
[0027] Furthermore, the insulating layer 103 is made of polyethylene material. During operation, the insulating layer 103 made of polyethylene material has excellent electrical insulation properties.
[0028] Furthermore, the flame retardant layer 106 is made of polyvinyl chloride. During operation, polyvinyl chloride has flame retardant properties, which can improve the flame retardancy of the first PVC heat shrinkable sleeve 1 and the second PVC heat shrinkable sleeve 2, and reduce the probability of the first PVC heat shrinkable sleeve 1 and the second PVC heat shrinkable sleeve 2 catching fire.
[0029] Working principle:
[0030] During use, the first external thread 7 is engaged with the first internal thread 8 to mount the connecting head 4 on the circumferential surface of the first PVC heat shrinkable sleeve 1, and the second external thread 10 is engaged with the second internal thread 9 to connect the rotating sleeve 3 to the connecting head 4, and then the connecting head 4 is connected to the second PVC heat shrinkable sleeve 2. At this time, the first PVC heat shrinkable sleeve 1 and the second PVC heat shrinkable sleeve 2 can be quickly assembled by the mutual cooperation of the connecting head 4 and the rotating sleeve 3.
[0031] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A combined high temperature resistant PVC heat shrinkable sleeve, comprising a PVC heat shrinkable sleeve 1 (1) and a PVC heat shrinkable sleeve 2 (2), characterized in that: The PVC heat shrinkable tube one (1) is located at the left end of the PVC heat shrinkable tube two (2). The PVC heat shrinkable tube one (1) and the PVC heat shrinkable tube two (2) both comprise an inner tube (101), a high temperature protection layer (102), an insulating layer (103), a heat insulation layer one (104), a nylon layer (105), a flame retardant layer (106) and a heat insulation layer two (107). The circumferential surface of the inner tube (101) is fixedly connected to the high temperature protection layer (102), the circumferential surface of the high temperature protection layer (102) is fixedly connected to the insulating layer (103), the circumferential surface of the insulating layer (103) is fixedly connected to the heat insulation layer one (104), the circumferential surface of the heat insulation layer one (104) is fixedly connected to the nylon layer (105), the circumferential surface of the nylon layer (105) is fixedly connected to the flame retardant layer (106), and the circumferential surface of the flame retardant layer (106) is fixedly connected to the The heat-insulating layer 2 (107) is connected to the circumferential surface of the PVC heat-shrinkable sleeve 2 (2) and is rotatably connected to a rotating sleeve (3). The circumferential surface of the rotating sleeve (3) is provided with a second external thread (10). The circumferential surface of the PVC heat-shrinkable sleeve 1 (1) is provided with a first external thread (7). The PVC heat-shrinkable sleeve 1 (1) and the PVC heat-shrinkable sleeve 2 (2) are connected via a connector (4). The interior of the connector (4) is provided with a first internal thread (8) and a second internal thread (9). The connector (4) is connected to the PVC heat-shrinkable sleeve 1 (1) by the cooperation of the first external thread (7) and the first internal thread (8). The connector (4) is connected to the rotating sleeve (3) by the cooperation of the second internal thread (9) and the second external thread (10). The connector (4) is connected to the PVC heat-shrinkable sleeve 2 (2) by the cooperation of the rotating sleeve (3).
2. The combined high temperature resistant PVC heat shrinkable sleeve according to claim 1, characterized in that: A plurality of second grooves (6) are formed on the circumferential surface of the connecting head (4).
3. The combined high temperature resistant PVC heat shrinkable sleeve according to claim 1, characterized in that: A plurality of first grooves (5) are formed on the circumferential surface of the rotating sleeve (3).
4. The combined high temperature resistant PVC heat shrinkable sleeve according to claim 1, characterized in that: The high temperature protection layer (102) is made of polyurethane material with heat insulation performance.
5. The combined high temperature resistant PVC heat shrinkable sleeve according to claim 1, characterized in that: The insulating layer (103) is made of polyethylene material.
6. The combined high temperature resistant PVC heat shrinkable sleeve according to claim 1, characterized in that: The thermal insulation layer 1 (104) and the thermal insulation layer 2 (107) are thermal insulation cotton and aluminum foil thermal insulation cotton respectively.
7. The combined high temperature resistant PVC heat shrinkable sleeve according to claim 1, characterized in that: The flame retardant layer (106) is made of polyvinyl chloride.