TPE hollow wire heating hose

By introducing a stainless steel tube and a locking and limiting mechanism between the temperature sensor and the heating hose in the TPE hollow wire, the problem of complex sensor replacement is solved, the stability and measurement accuracy of the sensor are improved, and the replacement process is simplified.

CN224380873UActive Publication Date: 2026-06-19BEIJING JUDEJIA RUBBER & PLASTIC PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING JUDEJIA RUBBER & PLASTIC PROD CO LTD
Filing Date
2025-08-29
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

The replacement process for the temperature sensor of the existing TPE hollow heating hose is complicated, requires special tools, and is prone to damaging surrounding components. In addition, the sensor is prone to aging in complex environments, which affects the measurement accuracy and response speed.

Method used

The system employs a stainless steel tube and a temperature sensor clamping and limiting mechanism. The temperature sensor can be detachably connected through a clamping plate and a sliding groove structure, simplifying the replacement process. Teflon tubing and steel wire braided mesh are used to enhance the high temperature resistance and insulation performance of the hose.

Benefits of technology

It simplifies the temperature sensor replacement process, improves replacement efficiency, reduces the risk of damage to surrounding components, and enhances sensor stability and measurement accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a TPE hollow wire heating hose, belonging to the technical field of heating hoses. The TPE hollow wire heating hose includes a tube body, with a stainless steel tube fixedly installed on the surface of the tube body. A temperature sensor is detachably installed inside the stainless steel tube. A snap-fit ​​mechanism is fixedly installed inside the stainless steel tube, and a limiting mechanism is fixedly installed on the surface of the stainless steel tube. The main body of the tube is made of Teflon tubing, which has good flexibility and high-temperature resistance, reducing carbonization. The outer layer of the Teflon tubing uses four layers of steel wire braided mesh to ensure the working pressure of the hose. The outer layer of the steel wire braided mesh uses four layers of thermal insulation cotton, which has good insulation and uniform heat conduction. The snap-fit ​​mechanism connects the stainless steel tube and the temperature sensor. During replacement, the snap-fit ​​plate can be removed from the snap-fit ​​groove without affecting the sealing performance. The limiting mechanism limits the snap-fit ​​plate, allowing the temperature sensor to operate for extended periods.
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Description

Technical Field

[0001] This utility model relates to the field of heating hose technology, and in particular to TPE hollow wire heating hose. Background Technology

[0002] TPE hollow heating hose is an industrial component that combines material properties with functional design. It is mainly used in scenarios that require flexibility, temperature resistance and efficient heat transfer. TPE material has good elasticity and flexibility, can be bent and wound in complex paths, adapts to dynamic working environments, and can resist a variety of acids, alkalis and solvents, extending its service life. The internal reserved channel is used to introduce heat medium, and the fluid circulation is used to achieve uniform heating and avoid local overheating that leads to material degradation.

[0003] To monitor temperature changes inside the hose in real time, a temperature sensor is usually carefully installed at its end. However, over time and with frequent use, temperature sensors inevitably experience various performance degradation issues. Due to prolonged exposure to complex working environments, including high temperatures, high pressures, and corrosion, the sensitive element of the temperature sensor may gradually age, reducing its measurement accuracy and slowing its response speed. When the temperature sensor reaches the end of its service life or experiences a significant malfunction, it must be replaced. Replacing existing temperature sensors is often difficult because they are usually installed using complex fixing methods. Disassembly may require the use of various specialized tools, such as wrenches and screwdrivers, and the operating space is often very limited, making the disassembly work extremely challenging. Sometimes, disassembling an old temperature sensor can require a significant amount of time and effort from workers, and may even cause accidental damage to other surrounding components.

[0004] Therefore, there is an urgent need to provide TPE hollow heating hoses to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a TPE hollow heating hose.

[0006] To solve the above-mentioned technical problems, the present invention provides a technical solution as follows: a TPE hollow heating hose is provided, including a hose body, a stainless steel tube is fixedly installed on the surface of the hose body, a temperature sensor is detachably installed inside the stainless steel tube, the temperature sensor is used to detect the internal temperature of the hose body, the stainless steel tube is used to form a connection between the hose body and the temperature sensor, and the hose body is also included.

[0007] A snap-fit ​​mechanism is fixedly installed inside the stainless steel pipe. The snap-fit ​​mechanism is used to fix the temperature sensor inside the stainless steel pipe to detect the temperature of the pipe body.

[0008] A limiting mechanism is fixedly installed on the surface of the stainless steel tube. The limiting mechanism limits the snap-fit ​​mechanism, so that the temperature sensor can be stably fixed inside the stainless steel tube.

[0009] The present invention is further configured such that: the inner wall of the tube body is made of Teflon tube, and multiple layers of steel wire braided mesh are fixedly connected to the surface of the Teflon tube, and multiple layers of heat insulation cotton are fixedly connected to the surface of the steel wire braided mesh.

[0010] Through the above technical solution, the main body of the hose is made of Teflon tubing. Its main characteristics are a smooth inner wall, non-stick properties, smooth colloid flow, good flexibility, and high temperature resistance, which can greatly reduce carbonization. The outer layer of the Teflon tubing is made of four layers of steel wire braided mesh to ensure the working pressure of the hose. The outer layer of the steel wire braided mesh is further made of four layers of heat insulation cotton evenly wrapped around the outer wall of the hose, which has good insulation, uniform heat conduction, and high temperature resistance. High-quality insulation materials are used to ensure the heat preservation function of the hose and prevent heat loss.

[0011] The present invention is further configured such that: the stainless steel pipe has a butt hole and an installation hole on its surface; one end of the pipe body is fixedly connected to the inner wall of the butt hole; one end of the temperature sensor is movably inserted into the interior of the installation hole; the stainless steel pipe has a symmetrical first groove; and symmetrical second grooves are formed on both sides of the first groove.

[0012] Through the above technical solution, the stainless steel tube is used for the connection between the tube body and the temperature sensor, the first slide groove is used for the sliding of the snap-fit ​​plate, and the second slide groove is used for the sliding of the slider.

[0013] The present invention is further configured such that: a probe is fixedly mounted on the surface of the temperature sensor, and symmetrical snap-fit ​​grooves are formed on the surface of the temperature sensor.

[0014] With the above technical solution, the probe detects the temperature, and after the snap-fit ​​plate is inserted into the snap-fit ​​slot, the temperature sensor can be fixed inside the mounting hole.

[0015] The present invention is further configured such that: the snap-fit ​​mechanism includes a snap-fit ​​plate, the snap-fit ​​plate is slidably connected inside the first slide groove, the end of the snap-fit ​​plate is movably inserted inside the snap-fit ​​groove, symmetrical sliders are fixedly installed on the surface of the snap-fit ​​plate, the sliders are slidably connected inside the second slide groove, a first spring is fixedly connected to the surface of the sliders, and the other end of the first spring is fixedly connected to the inner wall of the second slide groove.

[0016] With the above technical solution, after the temperature sensor is inserted into the mounting hole, the snap-fit ​​plate is pressed into the mounting hole, and the end of the snap-fit ​​plate moves into the snap-fit ​​groove, so that the temperature sensor can be fixed inside the mounting hole. After the snap-fit ​​plate is released, under the restoring action of the first spring, the snap-fit ​​plate moves out from the snap-fit ​​groove, thereby canceling the fixation of the temperature sensor, and the temperature sensor can be taken out from the mounting hole. The second sliding groove cooperates with the slider to make the snap-fit ​​plate more stable when moving.

[0017] The present invention is further configured such that: the limiting mechanism includes a fixing block, the fixing block is fixedly installed on the surface of the stainless steel pipe, a sleeve is fixedly installed on the surface of the fixing block, a second spring is fixedly installed inside the sleeve, a connecting ring is fixedly installed at the end of the second spring, the connecting ring is slidably connected inside the sleeve, an extension rod is fixedly installed on the surface of the connecting ring, and a limiting ring is fixedly installed at the end of the extension rod.

[0018] With the above technical solution, after the snap-fit ​​plate is inserted into the snap-fit ​​groove, the surface of the snap-fit ​​plate is flush with the surface of the stainless steel tube. At this time, the limiting ring is pushed out to the surface of the snap-fit ​​plate under the action of the second spring, pressing the snap-fit ​​plate so that the snap-fit ​​plate can be stably inserted into the snap-fit ​​groove. The connecting ring and the extension rod slide inside the sleeve, making the limiting ring more stable when moving.

[0019] The present invention is further configured such that: the limiting ring is slidably connected to the surface of the stainless steel pipe, and the inner wall of the limiting ring is movably fitted to the surface of the snap-fit ​​plate.

[0020] Through the above technical solution, when the limiting ring moves to the surface of the snap-fit ​​plate, it plays a limiting role on the snap-fit ​​plate, preventing the snap-fit ​​plate from moving out of the snap-fit ​​groove and causing the temperature sensor to detach from the mounting hole.

[0021] The beneficial effects of this utility model are as follows:

[0022] 1. The main body of this utility model is made of Teflon tubing. Its main features are a smooth inner wall, non-stick properties, smooth colloid flow, good flexibility and high temperature resistance, which can greatly reduce carbonization. The outer layer of the Teflon tubing is made of four layers of steel wire braided mesh to ensure the working pressure of the hose. The outer layer of the steel wire braided mesh is made of four layers of heat insulation cotton evenly wrapped around the outer wall of the hose, which has good insulation and uniform heat conduction, high temperature resistance, and high-quality insulation materials to ensure the heat insulation function of the hose and prevent heat loss.

[0023] 2. This utility model is equipped with a snap-fit ​​mechanism, which connects the stainless steel tube and the temperature sensor. When replacing, the snap-fit ​​plate can be removed from the snap-fit ​​groove, allowing the temperature sensor to be replaced without affecting the sealing performance. A limit mechanism is also provided to limit the snap-fit ​​plate, ensuring that the snap-fit ​​plate can be stably and continuously inserted into the snap-fit ​​groove. This allows the temperature sensor to work for a long time and improves work efficiency. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the device of this utility model;

[0025] Figure 2 This is a schematic diagram of the cross-sectional structure of the tube body of the device of this utility model;

[0026] Figure 3 This is a cross-sectional view of the stainless steel tube and a schematic diagram of the temperature sensor structure of the device of this utility model.

[0027] Figure 4 This is a schematic diagram of the right side structure of the stainless steel tube in the device of this utility model;

[0028] Figure 5 The device of this utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0029] In the diagram: 1. Pipe body; 11. Teflon tube; 12. Steel wire braided mesh; 13. Thermal insulation cotton; 2. Stainless steel pipe; 21. Butt joint hole; 22. Mounting hole; 23. First slide groove; 24. Second slide groove; 3. Temperature sensor; 31. Probe; 32. Snap-fit ​​groove; 4. Snap-fit ​​mechanism; 41. Snap-fit ​​plate; 42. Slider; 43. First spring; 5. Limiting mechanism; 51. Fixing block; 52. Sleeve; 53. Second spring; 54. Connecting ring; 55. Extension rod; 56. Limiting ring. Detailed Implementation

[0030] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0031] Please see Figures 1-5 This application provides a TPE hollow heating hose, including a tube body 1, a stainless steel tube 2 fixedly installed on the surface of the tube body 1, and a temperature sensor 3 detachably installed inside the stainless steel tube 2. The temperature sensor 3 is used to detect the internal temperature of the tube body 1, and the stainless steel tube 2 is used to form a connection between the tube body 1 and the temperature sensor 3.

[0032] like Figure 2As shown, the inner wall of the tube body 1 is made of Teflon tube 11, and multiple layers of steel wire braided mesh 12 are fixedly connected to the surface of the Teflon tube 11. Multiple layers of thermal insulation cotton 13 are fixedly connected to the surface of the steel wire braided mesh 12.

[0033] In this embodiment: the main body of the tube 1 is a Teflon tube 11, which is characterized by its smooth inner wall, non-stick properties, smooth colloid flow, good flexibility and high temperature resistance, which can greatly reduce carbonization. The outer layer of the Teflon tube 11 is made of four layers of steel wire braided mesh 12 to ensure the working pressure of the hose. The outer layer of the steel wire braided mesh 12 is made of four layers of heat insulation cotton 13 evenly wrapped around the outer wall of the throat tube, which has good insulation and uniform heat conduction, high temperature resistance, and high-quality insulation materials to ensure the heat insulation function of the throat tube and prevent heat loss.

[0034] like Figure 3 and Figure 4 As shown, the stainless steel pipe 2 has a docking hole 21 and an installation hole 22 on its surface. One end of the pipe body 1 is fixedly connected to the inner wall of the docking hole 21. One end of the temperature sensor 3 is movably inserted into the installation hole 22. The stainless steel pipe 2 has a symmetrical first groove 23, and symmetrical second grooves 24 are provided on both sides of the first groove 23.

[0035] In this embodiment: the stainless steel tube 2 is used for the connection between the tube body 1 and the temperature sensor 3, the first slide groove 23 is used for the sliding of the snap-fit ​​plate 41, and the second slide groove 24 is used for the sliding of the slider 42.

[0036] like Figure 3 As shown, a probe 31 is fixedly mounted on the surface of the temperature sensor 3, and symmetrical snap-fit ​​grooves 32 are opened on the surface of the temperature sensor 3.

[0037] In this embodiment: the probe 31 detects the temperature, and after the snap plate 41 is inserted into the snap slot 32, the temperature sensor 3 can be fixed inside the mounting hole 22.

[0038] A snap-fit ​​mechanism 4 is fixedly installed inside the stainless steel pipe 2. The snap-fit ​​mechanism 4 is used to fix the temperature sensor 3 inside the stainless steel pipe 2 to perform temperature detection of the pipe body 1.

[0039] like Figure 3 As shown, the snap-fit ​​mechanism 4 includes a snap-fit ​​plate 41, which is slidably connected inside the first slide groove 23. The end of the snap-fit ​​plate 41 is movably inserted into the snap-fit ​​groove 32. Symmetrical sliders 42 are fixedly installed on the surface of the snap-fit ​​plate 41. The sliders 42 are slidably connected inside the second slide groove 24. A first spring 43 is fixedly connected to the surface of the sliders 42. The other end of the first spring 43 is fixedly connected to the inner wall of the second slide groove 24.

[0040] In this embodiment: after the temperature sensor 3 is inserted into the mounting hole 22, the snap-fit ​​plate 41 is pressed into the mounting hole 22, and the end of the snap-fit ​​plate 41 moves into the snap-fit ​​groove 32, so that the temperature sensor 3 can be fixed inside the mounting hole 22. After the snap-fit ​​plate 41 is released, under the restoring action of the first spring 43, the snap-fit ​​plate 41 moves out from the snap-fit ​​groove 32, thereby canceling the fixation of the temperature sensor 3, and the temperature sensor 3 can be taken out from the mounting hole 22. The second sliding groove 24 cooperates with the slider 42 to make the snap-fit ​​plate 41 more stable when moving.

[0041] A limiting mechanism 5 is fixedly installed on the surface of the stainless steel pipe 2. The limiting mechanism 5 limits the snap-fit ​​mechanism 4, so that the temperature sensor 3 can be stably fixed inside the stainless steel pipe 2.

[0042] like Figure 5 As shown, the limiting mechanism 5 includes a fixing block 51, which is fixedly installed on the surface of the stainless steel pipe 2. A sleeve 52 is fixedly installed on the surface of the fixing block 51. A second spring 53 is fixedly installed inside the sleeve 52. A connecting ring 54 is fixedly installed at the end of the second spring 53. The connecting ring 54 is slidably connected inside the sleeve 52. An extension rod 55 is fixedly installed on the surface of the connecting ring 54. A limiting ring 56 is fixedly installed at the end of the extension rod 55.

[0043] In this embodiment: After the snap-fit ​​plate 41 is inserted into the snap-fit ​​groove 32, the surface of the snap-fit ​​plate 41 is flush with the surface of the stainless steel tube 2. At this time, the limiting ring 56 is pushed out to the surface of the snap-fit ​​plate 41 under the action of the second spring 53, pressing the snap-fit ​​plate 41 so that the snap-fit ​​plate 41 can be stably inserted into the snap-fit ​​groove 32. The connecting ring 54 and the extension rod 55 slide inside the sleeve 52, making the limiting ring 56 more stable when moving.

[0044] like Figure 5 As shown, the limiting ring 56 is slidably connected to the surface of the stainless steel tube 2, and the inner wall of the limiting ring 56 is in movable contact with the surface of the snap-fit ​​plate 41.

[0045] In this embodiment: when the limiting ring 56 moves to the surface of the snap-fit ​​plate 41, it limits the snap-fit ​​plate 41 and prevents the snap-fit ​​plate 41 from moving out of the snap-fit ​​groove 32, causing the temperature sensor 3 to detach from the mounting hole 22.

[0046] When replacing the temperature sensor 3, the present invention first pushes the limiting ring 56 backward on the surface of the stainless steel tube 2, so that the limiting ring 56 is away from the surface of the snap-fit ​​plate 41. Under the action of the first spring 43, the snap-fit ​​plate 41 rises from inside the first slide groove 23 and moves away from inside the snap-fit ​​groove 32, and the temperature sensor 3 can be taken out from inside the mounting hole 22. When the new temperature sensor 3 is inserted into the mounting hole 22, the snap-fit ​​plate 41 is pressed into the mounting hole 22, and the end of the snap-fit ​​plate 41 is reinserted into the snap-fit ​​groove 32. The limiting ring 56 is released, and the second spring 53 squeezes the limiting ring 56 forward on the surface of the stainless steel tube 2 until the limiting ring 56 moves back to the surface of the snap-fit ​​plate 41, so that the snap-fit ​​plate 41 is stably inserted into the snap-fit ​​groove 32.

[0047] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A TPE hollow wire heating hose, comprising a hose body (1), characterized in that, A stainless steel tube (2) is fixedly installed on the surface of the tube body (1). A temperature sensor (3) is detachably installed inside the stainless steel tube (2). The temperature sensor (3) is used to detect the internal temperature of the tube body (1). The stainless steel tube (2) is used to form a connection between the tube body (1) and the temperature sensor (3). The tube body (1) also includes the following: The stainless steel pipe (2) is fixedly installed with a snap-fit ​​mechanism (4), which is used to fix the temperature sensor (3) inside the stainless steel pipe (2) to perform temperature detection of the pipe body (1). A limiting mechanism (5) is fixedly installed on the surface of the stainless steel tube (2). The limiting mechanism (5) limits the snap-fit ​​mechanism (4) so ​​that the temperature sensor (3) can be stably fixed inside the stainless steel tube (2).

2. The TPE hollow wire heating hose according to claim 1, characterized in that: The inner wall of the tube (1) is made of Teflon tube (11), and the surface of the Teflon tube (11) is fixedly connected with multiple layers of steel wire braided mesh (12), and the surface of the steel wire braided mesh (12) is fixedly connected with multiple layers of thermal insulation cotton (13).

3. The TPE hollow heating hose according to claim 1, characterized in that: The stainless steel tube (2) has a docking hole (21) and an installation hole (22) on its surface. One end of the tube body (1) is fixedly connected to the inner wall of the docking hole (21). One end of the temperature sensor (3) is movably inserted into the installation hole (22). The stainless steel tube (2) has a symmetrical first groove (23) and symmetrical second grooves (24) on both sides of the first groove (23).

4. The TPE hollow heating hose according to claim 3, characterized in that: The temperature sensor (3) has a probe (31) fixedly mounted on its surface, and the surface of the temperature sensor (3) has symmetrical snap-fit ​​grooves (32).

5. The TPE hollow heating hose according to claim 4, characterized in that: The snap-fit ​​mechanism (4) includes a snap-fit ​​plate (41), which is slidably connected inside the first slide groove (23). The end of the snap-fit ​​plate (41) is movably inserted into the snap-fit ​​groove (32). Symmetrical sliders (42) are fixedly installed on the surface of the snap-fit ​​plate (41). The sliders (42) are slidably connected inside the second slide groove (24). A first spring (43) is fixedly connected to the surface of the sliders (42). The other end of the first spring (43) is fixedly connected to the inner wall of the second slide groove (24).

6. The TPE hollow heating hose according to claim 5, characterized in that: The limiting mechanism (5) includes a fixing block (51), which is fixedly installed on the surface of the stainless steel pipe (2). A sleeve (52) is fixedly installed on the surface of the fixing block (51). A second spring (53) is fixedly installed inside the sleeve (52). A connecting ring (54) is fixedly installed at the end of the second spring (53). The connecting ring (54) is slidably connected inside the sleeve (52). An extension rod (55) is fixedly installed on the surface of the connecting ring (54). A limiting ring (56) is fixedly installed at the end of the extension rod (55).

7. The TPE hollow heating hose according to claim 6, characterized in that: The limiting ring (56) is slidably connected to the surface of the stainless steel tube (2), and the inner wall of the limiting ring (56) is in active contact with the surface of the snap-fit ​​plate (41).