Temperature control device and gas leakage detection system

Abstract

The utility model discloses a temperature control device and a gas leakage detection system, comprising a heating structure, a first telescopic structure and an energy storage structure, the heating structure is used for providing a constant temperature background for a to-be-detected position shot by a gas leakage detector, the first telescopic structure is connected with the heating structure, and the energy storage structure is connected with the first telescopic structure. The first telescopic structure is used for adjusting the position of the heating structure in the height direction of the first telescopic structure, the energy storage structure is arranged on one side of the first telescopic structure, the energy storage structure is electrically connected to the heating structure, and the energy storage structure is used for providing electric energy for the heating structure. By adopting the scheme of the utility model, a constant-temperature background can be provided for the to-be-detected position shot by the gas leak detector, so that when the temperature control device is applied to the gas leak detection system, the gas leak recognition accuracy of the gas leak detector in a low-temperature environment can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas leakage detection, in particular to a temperature control device and a gas leakage detection system. Background Art

[0002] In the related art, a gas leak detector can capture an image of the location to be tested and determine whether there is a gas leak at the location to be tested. The detection principle is: if there is a gas leak at the location to be tested, the gas will absorb thermal radiation, so that the image captured by the gas leak detector will have absorption lines at the location of the gas leak, thereby detecting the gas leak. However, in a low temperature environment, for example, in winter, the background temperature of the image captured by the gas leak detector is low, resulting in a low imaging sensitivity of the gas leak detector, which in turn makes it impossible to accurately identify gas leaks. Utility Model Content

[0003] The embodiment of the utility model discloses a temperature control device and a gas leakage detection system, which can provide a constant temperature background for a position to be tested photographed by a gas leak detector, so that when the temperature control device is applied to the gas leakage detection system, the accuracy of the gas leak detector in identifying gas leakage in a low temperature environment can be improved.

[0004] In order to achieve the above-mentioned object, in a first aspect, the utility model discloses a temperature control device, which is applied to a gas leakage detection system, wherein the gas leakage detection system comprises a gas leak detector, and the gas leak detector is used to capture an image of a position to be detected, and the temperature control device comprises:

[0005] A heating structure, wherein the heating structure is configured to be disposed on a side of the position to be tested away from the gas leak detector;

[0006] A first telescopic structure, the first telescopic structure is connected to the heating structure, and the first telescopic structure is used to adjust the position of the heating structure in the height direction of the first telescopic structure; and

[0007] An energy storage structure, the energy storage structure includes a box body, a power supply and a control mainboard, the box body is arranged on one side of the first telescopic structure, the control mainboard and the power supply are arranged in the box body, the power supply is used to store electrical energy, the control mainboard is electrically connected to the power supply and the heating structure, and the control mainboard is used to control the power of the electrical energy output by the power supply to the heating structure.

[0008] As an optional embodiment, in an embodiment of the first aspect of the utility model, the first telescopic structure includes a first main rod and a first sliding rod, the first main rod is provided with a first sliding groove, one end of the first sliding rod is slidably connected to the first sliding groove, and the other end of the first sliding rod is connected to the heating structure.

[0009] As an optional embodiment, in an embodiment of the first aspect of the utility model, a plurality of first retaining portions are provided at intervals along the height direction in the first slide groove, a second retaining portion is provided on the first sliding rod, the first sliding rod can slide to a plurality of different preset heights relative to the first main rod, and the second retaining portion is configured to be connected to one of the first retaining portions to keep the first sliding rod and the first main rod at the current preset height.

[0010] As an optional implementation, in an embodiment of the first aspect of the utility model, the heating structure is rotatably connected to the first telescopic structure to adjust the angle of the heating structure relative to the first telescopic structure.

[0011] As an optional implementation, in an embodiment of the first aspect of the utility model, the temperature control device also includes a second telescopic structure and a transmission mechanism, the second telescopic structure is arranged on one side of the first telescopic structure, the transmission mechanism is connected to the second telescopic structure and the heating structure, the second telescopic structure is used to drive the transmission mechanism to move in the height direction, and the transmission mechanism is used to drive the heating structure to rotate relative to the first telescopic structure.

[0012] As an optional embodiment, in an embodiment of the first aspect of the utility model, the second telescopic structure includes a second main rod, a second sliding rod and a threaded rod, the second main rod is provided with a second slide groove, one end of the second sliding rod is slidably connected to the second slide groove, the threaded rod is connected to the second main rod, the temperature control device also includes a fixing part, the fixing part is connected to the first telescopic structure and rotatably connected to the threaded rod, the transmission mechanism includes a connecting rod and a rotating part, the other end of the second sliding rod is connected to one end of the connecting rod, the other end of the connecting rod is rotatably connected to the rotating part, the rotating part is rotatably connected to the first telescopic structure and connected to the heating structure.

[0013] As an optional implementation, in an embodiment of the first aspect of the utility model, the heating structure includes a shell, a heat spreader and a heating sheet, the shell is provided with a receiving groove, the heating sheet is arranged in the receiving groove, the heating sheet is used to convert electrical energy into thermal energy, the heating sheet is electrically connected to the control main board, the heat spreader is arranged in the shell and covers the opening of the receiving groove.

[0014] As an optional implementation, in an embodiment of the first aspect of the utility model, the heating structure further includes a heat insulating member, which is disposed in the accommodating groove and wrapped around the remaining sides of the heating sheet except the side facing the heat spreader.

[0015] As an optional implementation manner, in the embodiment of the first aspect of the utility model, a handle is provided on the box body.

[0016] In the second aspect, the utility model discloses a gas leakage detection system, including a gas leak detector and a temperature control device as described in the first aspect of the utility model, wherein the gas leak detector is used to capture an image of a position to be tested, and the heating structure is arranged on a side of the position to be tested away from the gas leak detector.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The temperature control device and gas leakage detection system provided by the embodiments of the utility model, by setting a heating structure, the heating structure can provide a constant temperature background for the position to be tested photographed by the gas leak detector, so that when the temperature control device is applied to the gas leakage detection system, in a low temperature environment, the imaging sensitivity of the gas leak detector can be improved, thereby improving the accuracy of the gas leak detector in identifying gas leaks. At the same time, by setting a first telescopic structure, it is convenient for the user to adjust the height of the heating structure, so that the heating structure can be closer to the position to be tested, ensuring that the heating structure can serve as the constant temperature background of the position to be tested. By setting an energy storage structure, electrical energy can be provided to the heating structure, so that the heating structure can be used normally without an external power supply, thereby reducing the restrictions of the temperature control device on the usage scenario. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the temperature control device disclosed in the first aspect of the embodiment of the present application;

[0021] Figure 2 is a schematic diagram of the three-dimensional structure of the energy storage structure disclosed in the first aspect of the embodiment of the present application;

[0022] Figure 3 yes Figure 2 A cross-sectional view of the energy storage structure in the BB direction;

[0023] Figure 4 is a schematic structural diagram of the temperature control device disclosed in the first aspect of the embodiment of the present application;

[0024] Figure 5 is a schematic diagram of the three-dimensional structure of the heating structure disclosed in the first aspect of the embodiment of the present application;

[0025] Figure 6 yes Figure 5 A cross-sectional view of the heating structure in the AA direction;

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of the gas leakage detection system disclosed in the second aspect of the embodiment of the present application.

[0027] Icons: 1. Temperature control device; 10. Heating structure; 100. Shell; 100a. Receiving groove; 101. Heat spreader; 102. Heating plate; 103. Heat insulation; 11. First telescopic structure; 110. First main rod; 110a. First slide groove; 111. First sliding rod; 12. Energy storage structure; 120. Box body; 121. Power supply; 122. Control main board; 123. Handle; 13. Second telescopic structure; 130. Second main rod; 130a. Second slide groove; 131. Second sliding rod; 132. Threaded rod; 14. Transmission mechanism; 140. Connecting rod; 141. Rotating part; 15. Fixing part; 16. Locking part; 2. Gas leakage detection system; 20. Gas leak detector; 3. Position to be measured; X, height direction. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the present invention, the terms "installed", "set", "provided with", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0031] The technical solution of the utility model will be further described below in conjunction with embodiments and drawings.

[0032] Please also read Figures 1 to 3 The first aspect of the embodiment of the utility model discloses a temperature control device 1, which is applied to a gas leakage detection system. The gas leakage detection system includes a gas leak detector, which is used to capture an image of a position to be measured. The temperature control device 1 includes a heating structure 10, a first telescopic structure 11 and an energy storage structure 12. The heating structure 10 is configured to be arranged on a side of the position to be measured away from the gas leak detector. The first telescopic structure 11 is connected to the heating structure 10. The first telescopic structure 11 is used to adjust the position of the heating structure 10 in the height direction X of the first telescopic structure 11. The energy storage structure 12 includes a box body 120, a power supply 121 and a control mainboard 122. The box body 120 is arranged on one side of the first telescopic structure 11. The control mainboard and the power supply 121 are arranged in the box body 120. The power supply 121 is used to store electric energy. The control mainboard 122 is electrically connected to the power supply 121 and the heating structure 10. The control mainboard 122 is used to control the power of the electric energy output by the power supply 121 to the heating structure 10.

[0033] The temperature control device 1 disclosed in the first aspect of the embodiment of the utility model, by setting a heating structure 10, the heating structure 10 can provide a constant temperature background for the position to be tested photographed by the gas leak detector, so that when the temperature control device 1 is applied to a gas leakage detection system, in a low temperature environment, the imaging sensitivity of the gas leak detector can be improved, thereby improving the accuracy of the gas leak detector in identifying gas leaks. At the same time, by setting a first telescopic structure 11, it is convenient for the user to adjust the height of the heating structure 10, so that the heating structure 10 can be close to the position to be tested, ensuring that the heating structure 10 can serve as a constant temperature background for the position to be tested. By setting an energy storage structure 12, it is possible to provide electrical energy for the heating structure 10, so that the heating structure 10 can be used normally without an external power supply, thereby reducing the restrictions on the use scenarios of the temperature control device 1.

[0034] In addition, the energy storage structure 12 includes a box body 120, a power supply 121 and a control main board 122. The box body 120 can provide a storage space for the power supply 121 and the control main board 122, and protect the safety of the power supply 121 and the control main board 122. By setting the control main board 122, the power of the electric energy output by the power supply 121 to the heating structure 10 can be controlled, thereby controlling the power of the thermal energy output by the heating structure 10.

[0035] Optionally, the first telescopic structure 11 may be a manual slide rod or an electric push rod, etc., which may be selected according to actual conditions and is not specifically limited in this embodiment.

[0036] Optionally, the power source 121 may be a battery or a battery pack, etc., which may be selected according to actual conditions and is not specifically limited in this embodiment.

[0037] In some embodiments, a handle 123 is provided on the box body 120. In this way, it is convenient for the user to carry the energy storage structure 12.

[0038] See also Figure 4 In some embodiments, the first telescopic structure 11 includes a first main rod 110 and a first sliding rod 111. The first main rod 110 is provided with a first sliding groove 110a. One end of the first sliding rod 111 is slidably connected to the first sliding groove 110a, and the other end of the first sliding rod 111 is connected to the heating structure 10.

[0039] In this way, by setting the first main rod 110 and the first sliding rod 111, the first sliding rod 111 can slide relative to the first slide groove 110a of the first main rod 110, and the length of the portion of the first sliding rod 111 exposed in the first slide groove 110a can be adjusted, thereby realizing the adjustment of the position of the heating structure 10 set on the first sliding rod 111 in the height direction X, and the first telescopic structure 11 has a relatively simple structure, which can reduce the difficulty of use for users. At the same time, the first telescopic structure 11 adopts a manual adjustment method, which can meet the explosion-proof requirements when the temperature control device 1 is applied to a gas leakage detection system, thereby improving the safety of the temperature control device 1.

[0040] In some embodiments, a plurality of first retaining portions (not shown) are provided at intervals in the first slide groove 110a along the height direction X, a second retaining portion (not shown) is provided on the first sliding rod 111, the first sliding rod 111 can slide to a plurality of different preset heights relative to the first main rod 110, and the second retaining portion is configured to be connected to one of the first retaining portions to keep the first sliding rod 111 and the first main rod 110 at the current preset height.

[0041] In this way, by setting multiple first retaining portions and second retaining portions, when the first sliding rod 111 slides to different preset positions relative to the first main rod 110, the second retaining portions will be connected to different first retaining portions, so that the first sliding rod 111 and the first main rod 110 can be maintained at different preset heights, thereby enabling the user to maintain the heating structure 10 at a desired height when using it.

[0042] Optionally, one of the first retaining portion and the second retaining portion may be a protrusion and the other may be a recessed portion; alternatively, one of the first retaining portion and the second retaining portion may be a first magnet or a metal part and the other may be a metal part or a second magnet. The specific selection may be made based on actual conditions and is not specifically limited in this embodiment.

[0043] In some embodiments, the heating structure 10 is rotatably connected to the first telescopic structure 11 to adjust the angle of the heating structure 10 relative to the first telescopic structure 11. By rotatably connecting the heating structure 10 to the first telescopic structure 11, the heating structure 10 can be adjusted to a suitable angle so that the heating structure 10 and the gas leak detector are arranged facing each other, thereby increasing the effective area of ​​the heating structure 10 as a constant temperature background, and at the same time, it can also reduce the impact of the reflection of the heating structure 10 on the gas leak detector.

[0044] In some embodiments, the temperature control device 1 also includes a second telescopic structure 13 and a transmission mechanism 14. The second telescopic structure 13 is arranged on one side of the first telescopic structure 11. The transmission mechanism 14 is connected to the second telescopic structure 13 and the heating structure 10. The second telescopic structure 13 is used to drive the transmission mechanism 14 to move in the height direction X, and the transmission mechanism 14 is used to drive the heating structure 10 to rotate relative to the first telescopic structure 11.

[0045] In this way, by setting up the second telescopic structure 13 and the transmission mechanism 14, the second telescopic structure 13 can move in the height direction X. When the second telescopic structure 13 and the first telescopic structure 11 move simultaneously, the position of the heating structure 10 in the height direction X can be adjusted. When the second telescopic structure 13 moves and the first telescopic structure 11 is fixed, the second telescopic structure 13 converts the movement into rotation through the transmission mechanism 14, thereby driving the heating structure 10 to rotate relative to the first telescopic structure 11, thereby realizing the angle adjustment of the heating structure 10.

[0046] Optionally, the second telescopic structure 13 may be a manual slide rod or an electric push rod, etc., which may be selected according to actual conditions and is not specifically limited in this embodiment.

[0047] Optionally, the transmission mechanism 14 may be a connecting rod mechanism or a worm gear mechanism, etc., which may be selected according to actual conditions and is not specifically limited in this embodiment.

[0048] In some embodiments, the second telescopic structure 13 includes a second main rod 130, a second sliding rod 131 and a threaded rod 132. The second main rod 130 is provided with a second slide groove 130a. One end of the second sliding rod 131 is slidably connected to the second slide groove 130a. The threaded rod 132 is connected to the second main rod 130. The temperature control device 1 also includes a fixing member 15. The fixing member 15 is connected to the first telescopic structure 11 and is rotatably connected to the threaded rod 132. The transmission mechanism 14 includes a connecting rod 140 and a rotating member 141. The other end of the second sliding rod 131 is connected to one end of the connecting rod 140. The other end of the connecting rod 140 is rotatably connected to the rotating member 141. The rotating member 141 is rotatably connected to the first telescopic structure 11 and connected to the heating structure 10.

[0049] In this way, when it is necessary to adjust the height of the heating structure 10, the second sliding rod 131 and the first sliding rod 111 of the first telescopic structure 11 can be slid at the same time. At this time, the connecting rod 140 and the rotating member 141 do not rotate relative to each other, and the angle of the heating structure 10 will not be changed. When it is necessary to adjust the angle of the heating structure 10, the threaded rod 132 is rotated to change the relative height of the second sliding rod 131 relative to the first sliding rod 111, thereby driving the connecting rod 140 to move, and then the rotating member 141 rotates relative to the first sliding rod 111 to achieve the angle adjustment of the heating structure 10. The adjustment method is relatively simple, and the method of adjusting the angle of the heating structure 10 is also relatively accurate. In addition, the height adjustment and angle adjustment of the heating structure 10 are both achieved by manual adjustment, which can meet the explosion-proof requirements when the temperature control device 1 is applied to the gas leakage detection system, and improve the safety of the temperature control device 1.

[0050] In this embodiment, the rotating member 141 is rotatably connected to an end of the first sliding rod 111 that is away from the first main rod 110 .

[0051] In some embodiments, the temperature control device 1 further includes a locking member 16, which is connected to the first sliding rod 111 and the second sliding rod 131. By setting the locking member 16, when the temperature control device 1 is in use or when the height of the heating structure 10 needs to be adjusted, the locking member 16 locks the first sliding rod 111 and the second sliding rod 131, so that the relative height of the first sliding rod 111 and the second sliding rod 131 remains unchanged, which can ensure the synchronization when adjusting the height of the first sliding rod 111 and the second sliding rod 131, and avoid the angle of the heating structure 10 from changing. When the angle of the heating structure 10 needs to be adjusted, the locking member 16 releases the second sliding rod 131 and rotates the threaded rod 132, so that the relative height of the second sliding rod 131 relative to the first sliding rod 111 changes, thereby driving the connecting rod 140 to move, and then the rotating member 141 rotates relative to the first sliding rod 111, so as to achieve the angle adjustment of the heating structure 10.

[0052] Optionally, the locking element 16 can be locked using structures such as bolts or latches, which can be selected according to actual conditions and are not specifically limited in this embodiment.

[0053] Please also read Figure 5 and Figure 6 In some embodiments, the heating structure 10 includes a shell 100, a heat spreader 101 and a heating sheet 102. The shell 100 is provided with a receiving groove 100a. The heating sheet 102 is arranged in the receiving groove 100a. The heating sheet 102 is used to convert electrical energy into thermal energy. The heating sheet 102 is electrically connected to the control main board 122. The heat spreader 101 is arranged in the shell 100 and covers the opening of the receiving groove 100a.

[0054] In this way, the heating sheet 102 can dissipate heat to the opening of the receiving groove 100a. By setting the heat spreader 101, the heat spreader 101 can make the heat dissipated by the heating sheet 102 more uniform, thereby improving the uniformity of the heating structure 10 as a constant temperature background. Therefore, when the temperature control device 1 is applied to a gas leakage detection system, the accuracy of the gas leak detector in identifying gas leaks can be further improved. At the same time, the shell 100 and the heat spreader 101 can seal the heating sheet 102 in the receiving groove 100a, ensuring the safe use of the heating sheet 102, so that the temperature control device 1 can be suitable for scenes requiring explosion-proof (such as natural gas receiving stations, natural gas pipelines, etc.).

[0055] In this embodiment, the rotating member 141 is connected to the housing 100 .

[0056] In some embodiments, the heating structure 10 further includes a heat insulating member 103, which is disposed in the receiving groove 100a and wrapped around the heating sheet 102 except the side facing the heat spreader 101. By providing the heat insulating member 103, the heat insulating member 103 can achieve the effect of heat insulation, and the heat insulating member 103 is wrapped around the heating sheet 102 except the side facing the heat spreader 101, that is, the heat insulating member 103 is wrapped around the surrounding side of the heating sheet 102 and the side away from the heat spreader 101, which can reduce the heat dissipation of the heating sheet 102 to the surrounding side and the side away from the heat spreader 101, so that the heat dissipated by the heating sheet 102 is relatively concentrated on the side facing the heat spreader 101, thereby reducing the heat loss of the heating sheet 102.

[0057] Optionally, the thermal insulation member 103 may be thermal insulation cotton or glass fiber, etc., which may be selected according to actual conditions and is not specifically limited in this embodiment.

[0058] See also Figure 7 The second aspect of the utility model embodiment discloses a gas leakage detection system 2, including a gas leak detector 20 and the temperature control device 1 of the first aspect of the utility model embodiment. The gas leak detector 20 is used to capture an image of a position to be tested 3, and the heating structure 10 is located on the side of the position to be tested 3 away from the gas leak detector 20.

[0059] The gas leakage detection system 2 disclosed in the second aspect of the embodiment of the utility model adopts the temperature control device 1 of the first aspect of the embodiment of the utility model. The heating structure 10 can provide a constant temperature background for the position to be tested 3 photographed by the gas leak detector 20. In a low temperature environment, the imaging sensitivity of the gas leak detector 20 can be improved, thereby improving the accuracy of the gas leak detector 20 in identifying gas leaks.

[0060] The temperature control device and the gas leakage detection system disclosed in the embodiments of the present invention are introduced in detail above. Specific examples are used in this article to illustrate the principle and implementation method of the present invention. The description of the above embodiments is only used to help understand the temperature control device and the gas leakage detection system of the present invention and their core ideas. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A temperature control device, characterized in that: The temperature control device is applied to a gas leakage detection system, wherein the gas leakage detection system comprises a gas leak detector, wherein the gas leak detector is used to capture an image of a position to be detected, and the temperature control device comprises: A heating structure, wherein the heating structure is configured to be disposed on a side of the position to be tested away from the gas leak detector; A first telescopic structure, the first telescopic structure is connected to the heating structure, and the first telescopic structure is used to adjust the position of the heating structure in the height direction of the first telescopic structure; and An energy storage structure, the energy storage structure includes a box body, a power supply and a control mainboard, the box body is arranged on one side of the first telescopic structure, the control mainboard and the power supply are arranged in the box body, the power supply is used to store electrical energy, the control mainboard is electrically connected to the power supply and the heating structure, and the control mainboard is used to control the power of the electrical energy output by the power supply to the heating structure.

2. The temperature control device according to claim 1, characterized in that: The first telescopic structure includes a first main rod and a first sliding rod. The first main rod is provided with a first sliding groove. One end of the first sliding rod is slidably connected to the first sliding groove, and the other end of the first sliding rod is connected to the heating structure.

3. The temperature control device according to claim 2, characterized in that: A plurality of first retaining portions are provided in the first slide groove at intervals along the height direction, a second retaining portion is provided on the first sliding rod, the first sliding rod can slide to a plurality of different preset heights relative to the first main rod, and the second retaining portion is configured to be connected to one of the first retaining portions to keep the first sliding rod and the first main rod at the current preset height.

4. The temperature control device according to claim 1, characterized in that: The heating structure is rotatably connected to the first telescopic structure to adjust the angle of the heating structure relative to the first telescopic structure.

5. The temperature control device according to claim 4, characterized in that: The temperature control device also includes a second telescopic structure and a transmission mechanism, the second telescopic structure is arranged on one side of the first telescopic structure, the transmission mechanism is connected to the second telescopic structure and the heating structure, the second telescopic structure is used to drive the transmission mechanism to move in the height direction, and the transmission mechanism is used to drive the heating structure to rotate relative to the first telescopic structure.

6. The temperature control device according to claim 5, characterized in that: The second telescopic structure includes a second main rod, a second sliding rod and a threaded rod. The second main rod is provided with a second slide groove. One end of the second sliding rod is slidably connected to the second slide groove. The threaded rod is connected to the second main rod. The temperature control device also includes a fixing part. The fixing part is connected to the first telescopic structure and rotatably connected to the threaded rod. The transmission mechanism includes a connecting rod and a rotating part. The other end of the second sliding rod is connected to one end of the connecting rod. The other end of the connecting rod is rotatably connected to the rotating part. The rotating part is rotatably connected to the first telescopic structure and connected to the heating structure.

7. The temperature control device according to any one of claims 1 to 6, characterized in that: The heating structure includes a shell, a heat spreader and a heating sheet. The shell is provided with a receiving groove. The heating sheet is arranged in the receiving groove. The heating sheet is used to convert electrical energy into thermal energy. The heating sheet is electrically connected to the control main board. The heat spreader is arranged in the shell and covers the opening of the receiving groove.

8. The temperature control device according to claim 7, characterized in that: The heating structure further includes a heat insulating member, which is disposed in the containing groove and wraps around the remaining sides of the heating sheet except the side facing the heat spreader.

9. The temperature control device according to any one of claims 1 to 6, characterized in that: The box body is provided with a handle.

10. A gas leak detection system, characterized in that: It comprises a gas leak detector and a temperature control device as described in any one of claims 1 to 9, wherein the gas leak detector is used to capture an image of a position to be tested, and the heating structure is arranged on a side of the position to be tested away from the gas leak detector.

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