Multi-section temperature-sensitive color-changing insulation protection device

Abstract

The application discloses a multi-section temperature-sensitive color-changing insulation protection device, which comprises a protection for a connection position when applied to line connection and comprises an insulation protection sleeve and a temperature-sensitive color-changing component. The insulation protection sleeve is sleeved outside the line connection position and adopts a cylindrical structure. The temperature-sensitive color-changing component is detachably assembled outside the insulation protection sleeve. The temperature-sensitive color-changing component can change color when the temperature change of the line connection position is sensed. The temperature-sensitive color-changing component comprises a temperature-sensitive color-changing part and a heat conduction element installed on the inner side of the temperature-sensitive color-changing part. The heat conduction element is attached to the connected line. The application is suitable for line protection. When the device is installed on the switch terminal, the wiring post and other wiring transition parts of the line equipment, the temperature-sensitive color-changing part can sense the temperature and change color when the circuit connector is heated due to poor contact and the like. The early prevention of accidents is realized, and the safety of the line is improved.

Description

Technical Field

[0001] This invention relates to the field of circuit safety protection technology, and in particular to a multi-segment temperature-sensitive color-changing insulation protection device. Background Technology

[0002] Currently, the joints and terminals of power distribution lines are generally made of insulating materials. When poor contact or high-temperature overload occurs, it's difficult to detect and address these issues promptly, leading to frequent power outages and potential faults. The electrical power supply and distribution system has many transition points, such as switch terminals and wiring terminals in line equipment. These connection points are prone to poor contact and overheating, making them high-risk areas for electrical faults like resistance, overheating, and insulation aging. Currently, there's a lack of structures to monitor the overheating at these locations, which can lead to prolonged overheating, accelerated line aging, and ultimately, faults. Summary of the Invention

[0003] The purpose of this invention is to overcome the defects in the prior art and provide a multi-segment temperature-sensitive color-changing insulation protection device.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] This invention discloses a multi-segment temperature-sensitive color-changing insulation protection device, applied to protect the connection position during line connection. It includes an insulating protective sleeve and a temperature-sensitive color-changing component. The insulating protective sleeve, with a cylindrical structure, is fitted over the outside of the line connection position. The temperature-sensitive color-changing component is detachably mounted on the outside of the insulating protective sleeve and changes color when it senses a temperature change at the line connection point. The component includes a temperature-sensitive color-changing part and a heat-conducting element installed inside the part. The heat-conducting element is in contact with the connected line and conducts heat to the temperature-sensitive color-changing part when the temperature at the connection point changes, causing the part to change color. In use, the insulating protective sleeve is fitted over the line connection position. After the insulating protective sleeve is assembled, the heat conduction component inside the temperature-sensitive color-changing part is directly attached to the circuit. When a temperature change occurs at the circuit connection point, the heat conduction component can conduct heat to the temperature-sensitive color-changing part (the temperature-sensitive color-changing part in this device is made of thermosetting insulating material, the main raw materials of which are temperature-sensitive color-changing powder, silica microspheres, flame retardant, and UV stabilizer, giving it flame-retardant, UV-resistant, and temperature-sensitive color-changing properties). At this time, the temperature-sensitive color-changing part changes color according to the temperature, realizing an early warning function. This structural design allows the temperature-sensitive color-changing part to sense the temperature and change color when the circuit joints of the switch terminals, terminals, and other wiring transition parts of the circuit equipment heat up due to poor contact, etc., realizing early prevention of accidents and increasing the safety of the circuit.

[0006] Preferably, the thermochromic part has a T-shaped cross-section, and the surface of the insulating protective sleeve is provided with a stepped mounting groove that matches the thermochromic part. The thermochromic part is engaged with the outside of the stepped mounting groove, and the inner wall of the thermochromic part and the inner wall of the insulating protective sleeve are on the same arc surface. This ensures good consistency between the thermochromic part and the insulating protective sleeve when the thermochromic part is assembled inside the stepped mounting groove.

[0007] Preferably, the stepped assembly groove is further provided with an assembly pressure frame, which is used to press and fix the thermochromic component. The assembly pressure frame adopts a frame-shaped structure with a hollow center, so that the thermochromic part is exposed through the hollow part of the assembly pressure frame, so that the color of the thermochromic part can be observed when it changes, thus achieving an early warning function.

[0008] Preferably, the outer walls at both ends of the assembly frame are provided with second clamping grooves, and the outer walls of the insulating protective sleeve are provided with first clamping grooves at both ends of the assembly frame. The first clamping groove and the second clamping groove are on the same arc surface, and the width and depth of the first clamping groove and the second clamping groove are the same. After the assembly frame is assembled, the first clamping groove and the second clamping groove form a complete annular groove. A locking sleeve is fitted into the annular groove, and the assembly frame is pressed into the annular groove by the locking sleeve, so that the assembly frame and the thermochromic component are fixed. This structural design allows the assembly frame to be directly removed from the stepped assembly groove when the locking sleeve is removed. After the assembly frame is removed, the thermochromic component can be removed from the stepped assembly groove. The operation is convenient and quick, and it is convenient to replace the thermochromic component or disassemble the entire device when it malfunctions.

[0009] Preferably, the locking sleeve is a combination of a single elastic rubber ring or two non-elastic rigid materials forming a semi-circular ring structure. The two ends of the two semi-circular ring structures are detachably connected by bolts or pins. When the locking sleeve is a single elastic rubber ring, it can be directly fitted onto the first and second hoop slots from both ends of the insulating protective sleeve, and the assembly frame is tightened and fixed by its own elasticity. When the locking sleeve is a combination of two non-elastic rigid materials forming a semi-circular ring structure, the two semi-circular hoop structures can be directly engaged in the first and second hoop slots and fixed by bolts or pins, thus fixing the assembly frame.

[0010] Preferably, the thermochromic part is provided in three groups, and the three groups of thermochromic parts are arranged in a ring array with the central axis of the insulating protective sleeve as the array axis, which facilitates observation.

[0011] Preferably, the inner wall of the insulating protective sleeve is glued and fixed with a first gasket and a second gasket. Both the first gasket and the second gasket are made of rubber with high temperature resistance and elasticity. Three of each type of gasket are provided, arranged in a ring-shaped array with the central axis of the insulating protective sleeve as the array axis, with one gasket every other. The center of the first gasket has a hollow groove. The first gasket is located at the position of the temperature-sensitive color-changing part. The heat conduction element is located in the hollow groove. The arrangement of the first gasket and the second gasket allows the insulating protective sleeve to better wrap the connection position of the line during installation. The hollow groove in the center of the first gasket is used for the heat conduction element to ensure that it can contact the connection position of the line.

[0012] Preferably, the insulating protective sleeve is further equipped with end-sealing components at both ends, which fix the insulating protective sleeve on the line. The end-sealing components include an assembly retaining ring and a heat-shrinkable sleeve. The heat-shrinkable sleeve has the characteristic of shrinking when heated. The heat-shrinkable sleeve is fixed to one end of the assembly retaining ring, which is detachably engaged with the end of the insulating protective sleeve. This structural design allows the heat-shrinkable sleeve to shrink and tightly adhere to the outside of the line after the insulating protective sleeve is assembled (there will be a certain gap between its two ends and the line), achieving a seal at the end of the insulating protective sleeve and increasing the safety of the device. Furthermore, the heat-shrinkable sleeve in this device adopts a structure in which the thickness gradually increases from one end away from the insulating protective sleeve to the other end, which makes the heat-shrinkable sleeve tighter when it shrinks, resulting in a higher sealing performance.

[0013] Preferably, the insulating protective sleeve is provided with assembly ports at both ends, and the assembly retaining ring is inserted into the assembly ports for connection by threaded screwing or snap-fitting. In this way, after the line is disassembled, the insulating protective sleeve can be separated from the end cap (heat shrink sleeve is not easy to disassemble), so the insulating protective sleeve can be recycled and reused.

[0014] Preferably, the inner wall of the assembly retaining ring is provided with a retaining ring groove, and an elastic rubber ring is embedded in the outside of the assembly opening. The elastic rubber ring is engaged in the retaining ring groove, so that the end cap can be fixed by the elastic rubber ring engaging with the retaining ring groove during assembly.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] When this device is installed on the wiring transition parts such as switch terminals and terminal blocks of line equipment, if there is a problem of poor contact or heat generation at the circuit joint, the temperature-sensitive color-changing part can sense the temperature and change color to indicate the problem, thus realizing early prevention of accidents and increasing the safety of the line.

[0017] The device has second clamping grooves on the outer walls of both ends of the assembly frame, and first clamping grooves on the outer walls of the insulating protective sleeve at both ends of the assembly frame. The first clamping groove and the second clamping groove are on the same arc surface, and the width and depth of the first clamping groove and the second clamping groove are the same. After the assembly frame is assembled, the first clamping groove and the second clamping groove form a complete annular groove. A locking sleeve is fitted in the annular groove, so that when the locking sleeve is disassembled, the assembly frame can be directly removed from the stepped assembly groove. After the assembly frame is removed, the thermochromic part can be removed from the stepped assembly groove. The operation is convenient and quick, and it is convenient to replace the thermochromic component or disassemble the entire device when it malfunctions.

[0018] The device also has end-sealing components installed at both ends of the insulating protective sleeve. The end-sealing components fix the insulating protective sleeve on the line. The end-sealing components include an assembly retaining ring and a heat-shrinkable sleeve. The heat-shrinkable sleeve has the characteristic of shrinking when heated. The heat-shrinkable sleeve is fixed to one end of the assembly retaining ring. The assembly retaining ring can be detachably engaged with the end of the insulating protective sleeve, so that after the insulating protective sleeve is assembled, the heat-shrinkable sleeve can shrink and tightly adhere to the outside of the line, achieving a seal at the end of the insulating protective sleeve, which increases the safety of the device. In addition, the heat-shrinkable sleeve in the device adopts a structure in which the thickness gradually increases from one end away from the insulating protective sleeve to the other end. This makes the heat-shrinkable sleeve tighter when it shrinks, resulting in a higher sealing performance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0021] Figure 3 This is an exploded view of the present invention;

[0022] Figure 4 This is an exploded view from another perspective of the present invention;

[0023] Figure 5 This is a schematic diagram of the end-capping component structure in this invention;

[0024] Figure 6 This is a schematic diagram of the thermochromic part structure in this invention.

[0025] Reference numerals: 1. Insulating protective sleeve; 2. End cap; 201. Assembly retaining ring; 202. Heat shrink sleeve; 3. Temperature-sensitive color-changing part; 4. Assembly pressure frame; 5. Locking clamp; 6. First gasket; 7. Second gasket; 8. Heat conduction component; 9. First clamp groove; 10. Second clamp groove; 11. Elastic rubber ring; 12. Assembly port; 13. Stepped assembly groove; 14. Engaging ring groove. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1 -Appendix Figure 6 This further illustrates the specific embodiments of the multi-segment temperature-sensitive color-changing insulation protection device of the present invention. The multi-segment temperature-sensitive color-changing insulation protection device of the present invention is not limited to the descriptions in the following embodiments.

[0027] Example 1:

[0028] This embodiment provides a multi-segment temperature-sensitive color-changing insulation protection device, such as... Figure 1-6 As shown, the device is used to protect the connection point when connecting lines. It includes an insulating protective sleeve 1 and a thermochromic component. The insulating protective sleeve 1 is fitted over the outside of the connection point and has a cylindrical structure. The thermochromic component is detachably mounted on the outside of the insulating protective sleeve 1. There are three sets of thermochromic parts 3. The three sets of thermochromic parts 3 are arranged in a ring array with the central axis of the insulating protective sleeve 1 as the array axis for easy observation. The thermochromic component can change color when it senses a temperature change at the connection point. The thermochromic component includes a thermochromic part 3 and a heat conduction element 8 installed inside the thermochromic part 3. The heat conduction element 8 is in contact with the connected line and is used to conduct the temperature to the thermochromic part 3 when the temperature at the connection point changes, so that the thermochromic part 3 senses the temperature and changes color.

[0029] By adopting the above technical solution:

[0030] When in use, the insulating protective sleeve 1 is fitted onto the connection position of the line. After the insulating protective sleeve 1 is assembled, the heat conduction element 8 inside the temperature-sensitive color-changing part 3 is directly attached to the line. When the temperature changes at the connection position of the line, the heat conduction element 8 can conduct heat to the temperature-sensitive color-changing part 3 (the temperature-sensitive color-changing part 3 in this device is made of insulating thermosetting insulating material, the main raw material components of which are temperature-sensitive color-changing powder, silica microspheres, flame retardant and anti-ultraviolet agent, giving it flame-retardant, anti-ultraviolet and temperature-sensitive color-changing properties). At this time, the temperature-sensitive color-changing part 3 changes color according to the temperature to achieve the early warning function.

[0031] When this device is installed at the wiring transition parts such as switch terminals and terminal blocks of the line equipment, if there is a problem such as poor contact at the circuit joint and heats up, the temperature-sensitive color-changing part 3 can sense the temperature and change color to indicate the problem, thus realizing early prevention of accidents and increasing the safety of the line.

[0032] Example 2:

[0033] This embodiment provides a multi-segment temperature-sensitive color-changing insulation protection device, such as... Figure 1-6 As shown, the device is used to protect the connection point when connecting lines. It includes an insulating protective sleeve 1 and a thermochromic component. The insulating protective sleeve 1 is fitted over the outside of the connection point and has a cylindrical structure. The thermochromic component is detachably mounted on the outside of the insulating protective sleeve 1. There are three sets of thermochromic parts 3. The three sets of thermochromic parts 3 are arranged in a ring array with the central axis of the insulating protective sleeve 1 as the array axis for easy observation. The thermochromic component can change color when it senses a temperature change at the connection point. The thermochromic component includes a thermochromic part 3 and a heat conduction element 8 installed inside the thermochromic part 3. The heat conduction element 8 is in contact with the connected line and is used to conduct the temperature to the thermochromic part 3 when the temperature at the connection point changes, so that the thermochromic part 3 senses the temperature and changes color. The thermochromic part 3 has a T-shaped cross-section. The surface of the insulating protective sleeve 1 is provided with a stepped mounting groove 13 that is adapted to the thermochromic part 3. The thermochromic part 3 is engaged with the outside of the stepped mounting groove 13, and the inner wall of the thermochromic part 3 and the inner wall of the insulating protective sleeve 1 are on the same arc surface. This ensures good consistency between the thermochromic part 3 and the insulating protective sleeve 1 when the thermochromic part 3 is assembled inside the stepped mounting groove 13.

[0034] An assembly frame 4 is also provided on the outside of the stepped assembly groove 13, which is used to press and fix the thermochromic component. The assembly frame 4 adopts a frame-shaped structure with a hollow center, so that the thermochromic part 3 is exposed through the hollow part of the assembly frame 4, so that the color of the thermochromic part 3 can be observed when it changes color, thus achieving an early warning function.

[0035] The outer walls at both ends of the assembly frame 4 are provided with second clamping grooves 10, and the outer walls of the insulating protective sleeve 1 are provided with first clamping grooves 9 at both ends of the assembly frame 4. The first clamping grooves 9 and the second clamping grooves 10 are on the same arc surface, and the width and depth of the grooves of the first clamping grooves 9 and the second clamping grooves 10 are the same, so that after the assembly frame 4 is assembled, the first clamping grooves 9 and the second clamping grooves 10 form a complete annular groove. A locking sleeve 5 is fitted in the annular groove, and the assembly frame 4 is pressed in the annular groove by the locking sleeve 5, so that the assembly frame 4 and the temperature-sensitive color-changing component are fixed.

[0036] By adopting the above technical solution:

[0037] When the locking sleeve 5 is disassembled, the assembly frame 4 can be directly removed from the stepped assembly groove 13. After the assembly frame 4 is removed, the thermochromic part 3 can also be removed from the stepped assembly groove 13. The operation is convenient and quick, and it is convenient to replace the thermochromic component or disassemble the entire device when there is an abnormality.

[0038] Example 3:

[0039] This embodiment provides a multi-segment temperature-sensitive color-changing insulation protection device, such as... Figure 1-6 As shown, the device is used to protect the connection point when connecting lines. It includes an insulating protective sleeve 1 and a thermochromic component. The insulating protective sleeve 1 is fitted over the outside of the connection point and has a cylindrical structure. The thermochromic component is detachably mounted on the outside of the insulating protective sleeve 1. There are three sets of thermochromic parts 3. The three sets of thermochromic parts 3 are arranged in a ring array with the central axis of the insulating protective sleeve 1 as the array axis for easy observation. The thermochromic component can change color when it senses a temperature change at the connection point. The thermochromic component includes a thermochromic part 3 and a heat conduction element 8 installed inside the thermochromic part 3. The heat conduction element 8 is in contact with the connected line and is used to conduct the temperature to the thermochromic part 3 when the temperature at the connection point changes, so that the thermochromic part 3 senses the temperature and changes color. The thermochromic part 3 has a T-shaped cross section. The surface of the insulating protective sleeve 1 is provided with a stepped mounting groove 13 that is adapted to the thermochromic part 3. The thermochromic part 3 is engaged with the outside of the stepped mounting groove 13, and the inner wall of the thermochromic part 3 and the inner wall of the insulating protective sleeve 1 are on the same arc surface.

[0040] An assembly frame 4 is also provided on the outside of the stepped assembly groove 13, which is used to press and fix the thermochromic component. The assembly frame 4 adopts a frame structure with a hollow center.

[0041] The outer walls at both ends of the assembly frame 4 are provided with second clamping grooves 10, and the outer walls of the insulating protective sleeve 1 are provided with first clamping grooves 9 at both ends of the assembly frame 4. The first clamping grooves 9 and the second clamping grooves 10 are on the same arc surface, and the width and depth of the grooves of the first clamping grooves 9 and the second clamping grooves 10 are the same, so that after the assembly frame 4 is assembled, the first clamping grooves 9 and the second clamping grooves 10 form a complete annular groove. A locking sleeve 5 is fitted in the annular groove, and the assembly frame 4 is pressed in the annular groove by the locking sleeve 5, so that the assembly frame 4 and the temperature-sensitive color-changing component are fixed.

[0042] The locking sleeve 5 is a combination of a flexible rubber ring or two non-elastic rigid material rings in a semi-circular structure. The two ends of the two semi-circular rings are detachably connected by bolts or pins.

[0043] By adopting the above technical solution:

[0044] When the locking sleeve 5 is a flexible rubber ring, it can be directly fitted from both ends of the insulating protective sleeve 1 to the first clamp groove 9 and the second clamp groove 10. The assembly pressure frame 4 is tightened and fixed by its own elasticity. When the locking sleeve 5 is a combination of two non-elastic rigid materials in a semi-circular ring structure, the two semi-circular clamps can be directly engaged in the first clamp groove 9 and the second clamp groove 10 and fixed by bolts or pins. The assembly pressure frame 4 is fixed by the clamps.

[0045] Example 4:

[0046] This embodiment provides a multi-segment temperature-sensitive color-changing insulation protection device, such as... Figure 1-6 As shown, the device is used to protect the connection point when connecting lines. It includes an insulating protective sleeve 1 and a thermochromic component. The insulating protective sleeve 1 is fitted over the outside of the connection point and has a cylindrical structure. The thermochromic component is detachably mounted on the outside of the insulating protective sleeve 1. There are three sets of thermochromic parts 3. The three sets of thermochromic parts 3 are arranged in a ring array with the central axis of the insulating protective sleeve 1 as the array axis for easy observation. The thermochromic component can change color when it senses a temperature change at the connection point. The thermochromic component includes a thermochromic part 3 and a heat conduction element 8 installed inside the thermochromic part 3. The heat conduction element 8 is in contact with the connected line and is used to conduct the temperature to the thermochromic part 3 when the temperature at the connection point changes, so that the thermochromic part 3 senses the temperature and changes color. The thermochromic part 3 has a T-shaped cross section. The surface of the insulating protective sleeve 1 is provided with a stepped mounting groove 13 that is adapted to the thermochromic part 3. The thermochromic part 3 is engaged with the outside of the stepped mounting groove 13, and the inner wall of the thermochromic part 3 and the inner wall of the insulating protective sleeve 1 are on the same arc surface.

[0047] An assembly frame 4 is also provided on the outside of the stepped assembly groove 13, which is used to press and fix the thermochromic component. The assembly frame 4 adopts a frame structure with a hollow center.

[0048] The outer walls at both ends of the assembly frame 4 are provided with second clamping grooves 10, and the outer walls of the insulating protective sleeve 1 are provided with first clamping grooves 9 at both ends of the assembly frame 4. The first clamping grooves 9 and the second clamping grooves 10 are on the same arc surface, and the width and depth of the grooves of the first clamping grooves 9 and the second clamping grooves 10 are the same, so that after the assembly frame 4 is assembled, the first clamping grooves 9 and the second clamping grooves 10 form a complete annular groove. A locking sleeve 5 is fitted in the annular groove, and the assembly frame 4 is pressed in the annular groove by the locking sleeve 5, so that the assembly frame 4 and the temperature-sensitive color-changing component are fixed.

[0049] The locking sleeve 5 is a combination of a single elastic rubber ring or two non-elastic rigid materials in a semi-circular ring structure. The two ends of the two semi-circular ring structures are detachably connected by bolts or pins. The inner wall of the insulating protective sleeve 1 is glued and fixed with a first gasket 6 and a second gasket 7. Both the first gasket 6 and the second gasket 7 are made of rubber with high temperature resistance and elasticity. There are three of each of the first gasket 6 and the second gasket 7, arranged in a ring with the central axis of the insulating protective sleeve 1 as the array axis, with one gasket every other. The center of the first gasket 6 has a hollow groove. The first gasket 6 is located at the position of the temperature-sensitive color-changing part 3, and the heat conduction element 8 is located in the hollow groove.

[0050] By adopting the above technical solution:

[0051] The first gasket 6 and the second gasket 7 are provided so that the insulating protective sleeve 1 can better wrap the connection position of the line during installation, and the hollow groove in the center of the first gasket 6 is used for the heat conduction component 8 to ensure that it can contact the connection position of the line.

[0052] Example 5:

[0053] This embodiment provides a multi-segment temperature-sensitive color-changing insulation protection device, such as... Figure 1-6 As shown, the device is used to protect the connection point when connecting lines. It includes an insulating protective sleeve 1 and a thermochromic component. The insulating protective sleeve 1 is fitted over the outside of the connection point and has a cylindrical structure. The thermochromic component is detachably mounted on the outside of the insulating protective sleeve 1. There are three sets of thermochromic parts 3. The three sets of thermochromic parts 3 are arranged in a ring array with the central axis of the insulating protective sleeve 1 as the array axis for easy observation. The thermochromic component can change color when it senses a temperature change at the connection point. The thermochromic component includes a thermochromic part 3 and a heat conduction element 8 installed inside the thermochromic part 3. The heat conduction element 8 is in contact with the connected line and is used to conduct the temperature to the thermochromic part 3 when the temperature at the connection point changes, so that the thermochromic part 3 senses the temperature and changes color.

[0054] Both ends of the insulating protective sleeve 1 are also equipped with end-sealing components 2. The end-sealing components 2 fix the insulating protective sleeve 1 on the line. The end-sealing components 2 include an assembly retaining ring 201 and a heat-shrinkable sleeve 202. The heat-shrinkable sleeve 202 has the characteristic of shrinking when heated. The heat-shrinkable sleeve 202 is fixed to one end of the assembly retaining ring 201, and the assembly retaining ring 201 is detachably engaged with the end of the insulating protective sleeve 1.

[0055] By adopting the above technical solution:

[0056] After assembly (there will be a certain gap between its two ends and the line), the heat shrink sleeve 202 can shrink under heat and adhere tightly to the outside of the line, achieving a seal at the end of the insulation sleeve 1, which increases the safety of the device. In addition, the heat shrink sleeve 202 in the device adopts a structure in which the thickness gradually increases from the end away from the insulation sleeve 1 to the other end, which makes the heat shrink sleeve 202 tighter when shrinking and the sealing performance higher.

[0057] Example 6:

[0058] This embodiment provides a multi-segment temperature-sensitive color-changing insulation protection device, such as... Figure 1-6 As shown, the device is used to protect the connection point when connecting lines. It includes an insulating protective sleeve 1 and a thermochromic component. The insulating protective sleeve 1 is fitted over the outside of the connection point and has a cylindrical structure. The thermochromic component is detachably mounted on the outside of the insulating protective sleeve 1. There are three sets of thermochromic parts 3. The three sets of thermochromic parts 3 are arranged in a ring array with the central axis of the insulating protective sleeve 1 as the array axis for easy observation. The thermochromic component can change color when it senses a temperature change at the connection point. The thermochromic component includes a thermochromic part 3 and a heat conduction element 8 installed inside the thermochromic part 3. The heat conduction element 8 is in contact with the connected line and is used to conduct the temperature to the thermochromic part 3 when the temperature at the connection point changes, so that the thermochromic part 3 senses the temperature and changes color.

[0059] Both ends of the insulating protective sleeve 1 are also equipped with end-sealing components 2. The end-sealing components 2 fix the insulating protective sleeve 1 on the line. The end-sealing components 2 include an assembly retaining ring 201 and a heat-shrinkable sleeve 202. The heat-shrinkable sleeve 202 has the characteristic of shrinking when heated. The heat-shrinkable sleeve 202 is fixed to one end of the assembly retaining ring 201, and the assembly retaining ring 201 is detachably engaged with the end of the insulating protective sleeve 1.

[0060] The insulating protective sleeve 1 has assembly ports 12 at both ends. Assembly rings 201 are inserted into the assembly ports 12 and connected by threaded screws or snap-fit.

[0061] The inner wall of the assembly retaining ring 201 is provided with a retaining ring groove 14, and an elastic rubber ring 11 is embedded in the outside of the assembly opening 12. The elastic rubber ring 11 is engaged in the retaining ring groove 14, so that the end cap 2 can be fixed by the elastic rubber ring 11 engaging with the retaining ring groove 14 during assembly.

[0062] By adopting the above technical solution:

[0063] The end cap 2 is detachable, so that after the line is disassembled, the insulating protective sleeve 1 can be separated from the end cap 2 (the heat shrink sleeve 202 is not easy to disassemble), so the insulating protective sleeve 1 can be recycled and reused.

[0064] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A multi-segment temperature-sensitive color-changing insulation protection device, used for protecting the connection position during line connection, characterized in that... It lies in: include: Insulating protective sleeve (1), which is sleeved on the outside of the line connection position, adopts a cylindrical structure; A thermochromic component is detachably mounted on the outside of the insulating protective sleeve (1), and the thermochromic component can change color when it senses a temperature change at the connection point of the line. The thermochromic component includes a thermochromic part (3) and a heat conduction element (8) installed inside the thermochromic part (3). The heat conduction element (8) is attached to the connected line and is used to conduct the temperature to the thermochromic part (3) when the temperature at the connection position of the line changes, so that the thermochromic part (3) senses the temperature and changes color. The cross-section of the thermochromic part (3) is T-shaped. The surface of the insulating protective sleeve (1) is provided with a stepped mounting groove (13) that is adapted to the thermochromic part (3). The thermochromic part (3) is engaged with the outside of the stepped mounting groove (13), and the inner wall of the thermochromic part (3) and the inner wall of the insulating protective sleeve (1) are on the same arc surface. The stepped assembly groove (13) is also provided with an assembly pressure frame (4) on the outside, which is used to press and fix the temperature-sensitive color-changing component. The assembly pressure frame (4) adopts a frame structure with a hollow center. The outer walls of both ends of the assembly frame (4) are provided with second clamping grooves (10), and the outer walls of the insulating protective sleeve (1) are provided with first clamping grooves (9) at both ends of the assembly frame (4). The first clamping groove (9) and the second clamping groove (10) are on the same arc surface, and the width and depth of the first clamping groove (9) and the second clamping groove (10) are the same. After the assembly frame (4) is assembled, the first clamping groove (9) and the second clamping groove (10) form a complete annular groove. A locking sleeve (5) is fitted in the annular groove. The assembly frame (4) is pressed into the annular groove by the locking sleeve (5), so that the assembly frame (4) and the temperature-sensitive color-changing component are fixed.

2. The multi-segment temperature-sensitive color-changing insulation protection device according to claim 1, characterized in that: The locking sleeve (5) is a combination of a flexible rubber ring or two non-elastic rigid materials in a semi-circular ring structure. The two ends of the two semi-circular ring structures are detachably connected by bolts or pins.

3. The multi-segment temperature-sensitive color-changing insulation protection device according to claim 1, characterized in that: The thermochromic part (3) is provided in three groups, and the three groups of thermochromic parts (3) are arranged in a ring array with the central axis of the insulating protective sleeve (1) as the array axis.

4. The multi-segment temperature-sensitive color-changing insulation protection device according to claim 3, characterized in that: The inner wall of the insulating protective sleeve (1) is glued and fixed with a first pad (6) and a second pad (7). The first pad (6) and the second pad (7) are both made of rubber with high temperature resistance and elasticity. There are three of the first pad (6) and the second pad (7), which are arranged in a ring array with the central axis of the insulating protective sleeve (1) as the array axis. The center of the first pad (6) has a hollow groove. The first pad (6) is located at the position of the temperature-sensitive color-changing part (3). The heat conduction element (8) is located in the hollow groove.

5. A multi-segment temperature-sensitive color-changing insulation protection device according to claim 1, characterized in that: The insulating protective sleeve (1) is also equipped with end caps (2) at both ends. The end caps (2) fix the insulating protective sleeve (1) on the line. The end caps (2) include an assembly retaining ring (201) and a heat shrink sleeve (202). The heat shrink sleeve (202) has the characteristic of shrinking when heated. The heat shrink sleeve (202) is fixed to one end of the assembly retaining ring (201). The assembly retaining ring (201) is detachably engaged with the end of the insulating protective sleeve (1).

6. A multi-segment temperature-sensitive color-changing insulation protection device according to claim 5, characterized in that: The insulating protective sleeve (1) has assembly ports (12) at both ends, and the assembly retaining ring (201) is inserted into the assembly port (12) and connected by threaded engagement or snap engagement.

7. A multi-segment temperature-sensitive color-changing insulation protection device according to claim 6, characterized in that: The inner wall of the assembly retaining ring (201) is provided with a retaining ring groove (14), and an elastic rubber ring (11) is embedded in the outside of the assembly port (12), and the elastic rubber ring (11) is engaged in the retaining ring groove (14).

Images