Special electric heating tape for valve
By designing an insulating cylinder for storing the power cord and a quick-pull-out structure for the valve-specific electric heating belt, the problems of inconvenient power wiring and difficult plugging and unplugging have been solved. This enables power cord length adjustment and quick plugging and unplugging, improving the convenience and labor-saving effect of the wiring process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 山东森塔电气科技有限公司
- Filing Date
- 2025-06-06
- Publication Date
- 2026-06-16
AI Technical Summary
Existing electric heating strips for valves are inconvenient to connect to the power supply and cannot be quickly plugged in or unplugged, and the excess power cord cannot be adjusted according to the distance to the socket.
A valve-specific electric heating belt was designed, comprising a power cord storage insulating cylinder, a quick-connect plug, and a quick-release structure. By setting a movable contact block, a limiting ear plate, and a return spring, the power cord can be flexibly adjusted and quickly plugged in and out.
It enables flexible adjustment of power cord length and quick plugging/unplugging, avoiding excessively long power cords that drag on the ground, and improving the convenience and labor-saving effect of the wiring process.
Smart Images

Figure CN224367987U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric heating belt technology, and in particular to an electric heating belt for valves. Background Technology
[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and regulate and control the parameters (temperature, pressure, and flow rate) of the transported medium. Based on their function, they can be divided into shut-off valves, check valves, regulating valves, etc. When the valve transports a medium with viscosity, such as oil, it is usually necessary to heat the valve. Patent number CN201120036121.3 discloses an electric heating belt for heavy oil wells. This type of electric heating belt for heavy oil wells features high power per unit length, enabling heat tracing of ultra-long or ultra-short distance pipelines. It has the characteristics of simple structure, corrosion resistance, high pressure resistance, high temperature resistance, and good insulation performance. When applied to heavy oil wells, it can effectively reduce the viscosity of the produced fluid and alleviate the conditions of waxing and scaling in the pipeline.
[0003] The disadvantages of the aforementioned electric heating belt are that the power wiring is inconvenient, the excess power cord cannot be adjusted according to the distance to the socket, and the plug cannot be quickly pulled out during plugging and unplugging. Based on this, we designed a valve-specific electric heating belt. Utility Model Content
[0004] The purpose of this invention is to provide a special electric heating belt for valves to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a valve-specific electric heating belt, comprising a valve heating belt body and a quick-connect plug, wherein a sleeve is fixedly installed in the middle of one side of the valve heating belt body, a power cord storage insulating tube is fixedly installed at one end of the sleeve, a waterproof sealing plate is movably installed at the opening of one end of the power cord storage insulating tube, a first power cord segment is inserted and connected to one end of the waterproof sealing plate, one end of the first power cord segment is fixedly connected to the quick-connect plug, and a quick-pull-out structure is fixedly installed at the top of the quick-connect plug;
[0006] The quick-release structure includes an outer shell disposed at the top of the quick-connect plug. A movable abutment block is installed at an opening on one side of the outer shell. A rubber insulating strip is fixedly installed at one end of the movable abutment block. The other end of the movable abutment block is located inside the outer shell and is fixedly installed with a limiting ear plate and two return springs. The two return springs are located on both sides of the other end of the movable abutment block and are spatially distributed vertically with respect to the limiting ear plate.
[0007] Preferably, a valve seat tensioning port is fixedly provided at the middle of the top end of the valve heating belt body, and a fitting connecting rubber sleeve is fixedly installed inside the valve seat tensioning port.
[0008] Preferably, a winding connecting rod is fixedly installed at the other end of the waterproof sealing plate, and a second power line connected to the first power line segment is wound around the surface of the winding connecting rod. The second power line is connected to the heating wire of the valve heating belt body.
[0009] Preferably, the limiting ear plate is located at the middle of the other end of the movable contact block and is movably connected to the limiting link. One end of the limiting link is connected to the side wall of the outer shell and is fixedly installed with a movable cap.
[0010] Preferably, an insulation strip is fixedly provided at the bottom end of the valve heating belt body, and an adhesive strip is provided on the inner side of the insulation strip.
[0011] Preferably, the length of the first power line segment and the length of the second power line when straightened are equal.
[0012] The technical effects and advantages of this utility model are as follows:
[0013] (1) This utility model provides a valve-specific electric heating belt. By setting up a power cord storage insulating cylinder, a first power cord segment, a second power cord, a waterproof sealing plate, and a winding connecting rod, the required power cord length can be adjusted during the actual wiring process. Excess power cord can be stored inside the power cord storage insulating cylinder or wound onto the winding connecting rod, which helps to better connect and avoids the power cord being too long and dragging on the ground. By setting up an outer shell, a movable contact block, a limiting ear plate, a return spring, a limiting connecting rod, a movable cap, and a rubber insulating strip, when it is necessary to plug or unplug the quick connector, the limiting connecting rod can be removed first through the movable cap. Then, the quick connector can be held, and the return spring can be quickly ejected under the action of the return spring, which has a good labor-saving effect. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0015] Figure 2 This is a schematic diagram of the structure of the quick-connect plug of this utility model.
[0016] Figure 3 This is a structural schematic diagram of the waterproof sealing plate of this utility model.
[0017] In the diagram: 1. Valve heating element; 2. Insulation strip; 3. Fitting connecting sleeve; 4. Valve seat tightening port; 5. Sleeve strap; 6. Power cord storage insulating cylinder; 7. First power cord segment; 8. Quick connector; 9. Waterproof sealing plate; 10. Outer shell; 11. Movable contact block; 12. Limiting ear plate; 13. Return spring; 14. Limiting connecting rod; 15. Movable cap; 16. Rubber insulating strip; 17. Winding connecting rod; 18. Second power cord. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] This utility model provides, for example Figure 1-3 The valve-specific electric heating belt shown includes a valve heating belt body 1 and a quick-connect plug 8. A sleeve belt 5 is fixedly installed in the middle of one side of the valve heating belt body 1. A power cord storage insulating tube 6 is fixedly installed at one end of the sleeve belt 5. A waterproof sealing plate 9 is movably installed at the opening of one end of the power cord storage insulating tube 6. A first power cord segment 7 is inserted and connected to one end of the waterproof sealing plate 9. One end of the first power cord segment 7 is fixedly connected to the quick-connect plug 8. A quick-pull-out structure is fixedly installed at the top of the quick-connect plug 8.
[0020] The quick-release structure includes an outer shell 10 located at the top of the quick-connect plug 8. A movable abutment block 11 is installed at an opening on one side of the outer shell 10. A rubber insulating strip 16 is fixedly installed at one end of the movable abutment block 11. The other end of the movable abutment block 11 is located inside the outer shell 10 and is fixedly installed with a limiting ear plate 12 and two return springs 13. The two return springs 13 are located on both sides of the other end of the movable abutment block 11 and are spatially distributed vertically with respect to the limiting ear plate 12.
[0021] In this embodiment, a valve seat tightening port 4 is fixedly provided at the middle of the top end of the valve heating belt body 1, and a fitting connecting rubber sleeve 3 is fixedly installed inside the valve seat tightening port 4. The purpose of this arrangement is to facilitate better fitting to the valve seat, providing good fit and a firm connection.
[0022] In this embodiment, a winding connecting rod 17 is fixedly installed at the other end of the waterproof sealing plate 9. A second power line 18, connected to the first power line segment 7, is wound around the surface of the winding connecting rod 17. The length of the first power line segment 7 and the straightened length of the second power line 18 are equal. The second power line 18 is connected to the heating wire of the valve heating belt body 1. The purpose of this arrangement is to facilitate the winding connection of the second power line 18, making it easier to store it inside the power line storage insulating cylinder 6.
[0023] In this embodiment, the limiting ear plate 12 is located at the middle of the other end of the movable abutment block 11 and is movably connected to the limiting link 14. One end of the limiting link 14 is connected to the side wall of the outer shell 10 and a movable cap 15 is fixedly installed thereon. The purpose of this arrangement is to facilitate the removal and insertion of the limiting link 14.
[0024] In this embodiment, an insulation strip 2 is fixedly installed at the bottom end of the valve heating strip body 1, and an adhesive tape is provided on the inner side of the insulation strip 2. The purpose of this arrangement is to provide good wrapping properties and facilitate wrapping the lower part of the valve.
[0025] The working principle of this utility model is as follows: The electric heating belt includes a valve heating belt body 1 and a quick connector 8. A sleeve belt 5 is fixedly installed in the middle of one side of the valve heating belt body 1. A power cord storage insulating cylinder 6 is fixedly installed at one end of the sleeve belt 5. The heating wire of the valve heating belt body 1 is connected to the second power cord 18. The second power cord 18 is connected to the first power cord segment 7. The first power cord segment 7 is connected to the quick connector 8. The first power cord segment 7 and the second power cord 18 can both be set inside the power cord storage insulating cylinder 6. The first power cord segment 7 is inserted and connected to the hollow part of the winding connecting rod 17. A quick pull-out structure is fixedly installed at the top of the quick connector 8.
[0026] The quick-release structure includes an outer shell 10 located at the top of the quick-connect plug 8. A movable abutment block 11 is installed at an opening on one side of the outer shell 10. A rubber insulating strip 16 is fixedly installed at one end of the movable abutment block 11. The other end of the movable abutment block 11 is located inside the outer shell 10 and is fixedly installed with a limiting ear plate 12 and two return springs 13. The two return springs 13 are located on both sides of the other end of the movable abutment block 11 and are spatially distributed vertically with the limiting ear plate 12. This utility model can adjust the required length of the power cord during actual wiring, storing the excess power cord inside the power cord storage insulating cylinder or winding it around the winding connecting rod, which helps to better connect and avoid the power cord being too long and dragging on the ground. At the same time, it can quickly plug and unplug the quick-connect plug 8, which has a good labor-saving effect.
[0027] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.
Claims
1. A valve-specific electric heating belt, comprising a valve heating belt body (1) and a quick-connect plug (8), characterized in that, A sleeve belt (5) is fixedly installed in the middle of one side of the valve heating belt body (1). A power cord storage insulating tube (6) is fixedly installed at one end of the sleeve belt (5). A waterproof sealing plate (9) is movably installed at the opening of one end of the power cord storage insulating tube (6). A first power cord segment (7) is inserted and connected to one end of the waterproof sealing plate (9). One end of the first power cord segment (7) is fixedly connected to a quick connector (8). A quick pull-out structure is fixedly installed at the top of the quick connector (8). The quick-release structure includes an outer shell (10) set at the top of the quick connector (8). A movable abutment block (11) is installed at the opening on one side of the outer shell (10). A rubber insulating strip (16) is fixedly installed at one end of the movable abutment block (11). The other end of the movable abutment block (11) is located inside the outer shell (10) and a limiting ear plate (12) and two return springs (13) are fixedly installed. The two return springs (13) are located on both sides of the other end of the movable abutment block (11) and are spatially distributed vertically with the limiting ear plate (12).
2. The valve-specific electric heating belt according to claim 1, characterized in that, A valve seat tightening port (4) is fixedly provided at the middle of the top of the valve heating belt body (1), and a fitting connecting rubber sleeve (3) is fixedly installed inside the valve seat tightening port (4).
3. The valve-specific electric heating belt according to claim 1, characterized in that, The other end of the waterproof sealing plate (9) is fixedly installed with a winding connecting rod (17). The surface of the winding connecting rod (17) is wound with a second power line (18) connected to the first power line segment (7). The second power line (18) is connected to the heating wire of the valve heating belt body (1).
4. The valve-specific electric heating belt according to claim 1, characterized in that, The limiting ear plate (12) is located in the middle of the other end of the movable contact block (11) and is movably connected to the limiting link (14). One end of the limiting link (14) is connected to the side wall of the outer shell (10) and is fixedly installed with a movable cap (15).
5. The valve-specific electric heating belt according to claim 1, characterized in that, The bottom end of the valve heating strip (1) is fixedly provided with a heat insulation barrier strip (2), and the inner side of the heat insulation barrier strip (2) is provided with an adhesive strip.
6. The valve-specific electric heating belt according to claim 2, characterized in that, The length of the first power line segment (7) is equal to the length of the second power line (18) when stretched straight.