Thermotechnical signal calibrator

Abstract

A thermotechnical signal calibrator disclosed by the present invention comprises a body and a lifting frame, the body comprises a mounting surface provided with a display screen and keys, and a first side surface and a second side surface which are respectively located at two sides of the mounting surface, the first side surface and the second side surface are both provided with sliding blocks, and the lifting frame comprises a lifting part and a hook. The lifting part is clamped on the two sides of the body and is provided with a first sliding groove and a second sliding groove, the first sliding groove is in sliding fit with the first sliding block in the vertical direction, the second sliding groove is in sliding fit with the second sliding block in the vertical direction, the hook is connected to the top of the lifting part, and a protruding elastic piece is arranged on the inner side of the hook. According to the thermotechnical signal calibrator, the lifting frame and the body can only slide relative to each other in the vertical direction and cannot rotate, so that the stability between the lifting frame and the body can be improved, the elastic piece arranged on the inner side of the hook can clamp a cable through the counter-acting force formed by cable pressing, and the cable is prevented from being damaged. Therefore, the hooking stability of the thermotechnical signal calibrator on the cable is improved, and the risks of shaking and falling of the thermotechnical signal calibrator are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of detection equipment for power plants, and in particular to a thermal signal calibrator. Background Art

[0002] Thermal signal calibrator is an instrument used to calibrate and test various thermal instruments. It can simulate various thermal signals, such as temperature, pressure, liquid level, etc., and calibrate and test thermal instruments to ensure their accuracy and reliability.

[0003] The thermal signal tester has a special handle for electricians to carry, and the handle and fasteners make it easy to hang the thermal signal tester on the cable, so that the thermal signal tester can be temporarily placed on the cable near the instrument to be calibrated during calibration; however, the handle on the instrument is rotatable, and the handle may shake during use, making the instrument unstable when suspended, and there is a certain risk of falling. Summary of the invention

[0004] The present invention aims to solve the technical problems in the related technologies. To this end, an embodiment of the present invention proposes a thermal signal calibrator, wherein the carrying frame and the main body of the thermal signal calibrator can only slide relative to each other in the up and down directions and cannot rotate, thereby improving the stability between the carrying frame and the main body. The spring sheet arranged on the inner side of the hook can clamp the cable by utilizing the reaction force formed by the cable compression, thereby improving the stability of the thermal signal calibrator hooked on the cable and reducing the risk of shaking and falling of the thermal signal calibrator.

[0005] The thermal signal calibrator of the embodiment of the present invention includes: a main body, the main body includes a mounting surface for setting a display screen and buttons and a first side surface and a second side surface respectively located on both sides of the mounting surface, the first side surface and the second side surface are both provided with sliders, and the two sliders are symmetrical about the main body; a lifting frame, the lifting frame includes a lifting part and a hook, the lifting part is clamped on both sides of the main body and has a first slide groove and a second slide groove, the first slide groove and the first slide groove are slidably matched in the up and down directions, the second slide groove and the second slide groove are slidably matched in the up and down directions, the hook is connected to the top of the lifting part and a protruding spring sheet is provided on the inner side of the hook.

[0006] The thermal signal calibrator of the embodiment of the present invention, the body includes a mounting surface for providing a display screen and a button, and a first side surface and a second side surface respectively located on both sides of the mounting surface, the first side surface and the second side surface are both provided with sliders, the two sliders are symmetrical about the body, the lifting frame includes a lifting part and a hook, the lifting part is clamped on both sides of the body and has a first slide groove and a second slide groove, the first slide groove and the first slide groove are slidably matched with the first slide groove in the up and down directions, the second slide groove and the second slide groove are slidably matched with the second slide groove in the up and down directions, the hook is connected to the top of the lifting part and a protruding spring sheet is provided on the inner side of the hook, thereby, the lifting frame and the body can only slide relative to each other in the up and down directions and cannot rotate, thereby improving the stability between the lifting frame and the body, the spring sheet arranged on the inner side of the hook can clamp the cable by the reaction force formed by cable compression, thereby improving the stability of the thermal signal calibrator hooked on the cable, and reducing the risk of shaking and falling of the thermal signal calibrator.

[0007] In some embodiments, the lifting portion includes a top rod, a first guide rod and a second guide rod, the top rod is located above the main body, the first guide rod and the second guide rod are respectively connected to the two ends of the top rod, and the first guide rod is provided with the first slide groove, the second guide rod is provided with the second slide groove, and the hook is connected to the upper surface of the top rod and is located in the middle position of the top rod.

[0008] In some embodiments, a card slot is provided on the top surface of the main body, and a downwardly protruding card plate is provided on the lower surface of the push rod. When the push rod is close to the main body, the card plate is correspondingly engaged in the card slot.

[0009] In some embodiments, the inner side surface of the hook has a groove extending along the circumference of the hook, and in the circumference of the hook, the extension dimension of the groove is smaller than the extension dimension of the groove, the spring sheet includes a protrusion and a sliding portion connected to both ends of the protrusion, the protrusion protrudes outward from the groove, the sliding portion fits in the groove, and in the circumference of the hook, the extension dimension of the spring sheet is larger than the extension dimension of the groove.

[0010] In some embodiments, in the circumferential direction of the hook, the extension dimension of the protrusion is smaller than the extension dimension of the notch, and the extension dimension of the spring sheet is smaller than the extension dimension of the groove.

[0011] In some embodiments, the spring sheets are multiple and spaced apart in the circumferential direction of the hook.

[0012] In some embodiments, a through groove is provided on the bottom surface of the main body, and a support member is provided in the through groove, and the support member includes a first support plate and a second support plate. The first support plate and the second support plate can move away from each other along a first direction and extend out of the through groove, and the first support plate and the second support plate can approach each other along the first direction to be retracted into the through groove, and the first direction is the extension direction of the through groove.

[0013] In some embodiments, a spring is provided between the first support plate and the second support plate, and the spring has a force that pushes the first support plate and the second support plate away from each other. A locking piece is also provided in the through slot, and the locking piece can lock and release the first support plate and the second support plate. A pressing column is provided on the slot wall of the through slot, and pressing the pressing column can control the locking piece to release the first support plate and the second support plate.

[0014] In some embodiments, the locking member includes a first locking plate and a second locking plate rotatably connected to the base and opposite to each other, and the first support plate and the second support plate are respectively provided with a first notch and a second notch at one end facing the locking member to accommodate the first locking plate and the second locking plate, and the first notch and the second notch are respectively provided with a first snap-in slot and a second snap-in slot on the side surfaces of the slot wall facing the through slot, and the first lock plate and the second lock plate are respectively provided with a first snap-in slot and a second snap-in slot adapted for the first snap-in slot and the second snap-in slot, the pressing hold is penetrated on the slot wall of the through slot and its inner end is partially opposite to the first lock plate and the second lock plate, and when the pressing hold is pressed, the first lock plate and the second lock plate rotate outward and make the first snap-in slot and the second snap-in slot disengage from the corresponding snap-in slots, and the first lock plate and the second lock plate are both provided with a return torsion spring.

[0015] In some embodiments, a guide groove extending along the length direction of the through groove is provided on the inner side wall of the through groove, and the first support plate and the second support plate are both provided with a guide block cooperating with the guide groove;

[0016] A limit block is also provided on the bottom surface of the through slot, and the side edges of the first support plate and the second support plate that are away from each other are provided with upwardly bent clamping edges, and when the first support plate and the second support plate are close to each other, the clamping edges abut against the limit block. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of a thermal signal calibration instrument according to an embodiment of the present invention;

[0018] Figure 2 It is a schematic diagram of the overall multi-angle structure of the thermal signal calibration instrument according to an embodiment of the present invention;

[0019] Figure 3 It is a front view cross-sectional structural schematic diagram of a hook of a thermal signal calibration instrument according to an embodiment of the present invention;

[0020] Figure 4 for Figure 3 A schematic diagram of the structure at A;

[0021] Figure 5 It is a schematic structural diagram of a support plate of a thermal signal calibrator according to an embodiment of the present invention.

[0022] Reference numerals:

[0023] Main body 1; display screen 2; button 3; bracket 4; first slider 51; first slide groove 52; card plate 53; card slot 54; hook 6; groove 71; notch 72; sliding part 73; protrusion 74; through groove 8; first support plate 9; second support plate 91; spring 92; second locking plate 93; second card protrusion 94; pressing column 95; push plate 96; torsion spring 97; limit block 10. DETAILED DESCRIPTION

[0024] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0025] like Figure 1-Figure 5 As shown, the thermal signal calibrator according to the embodiment of the present invention includes a main body 1 and a support 4 .

[0026] Specifically, the main body 1 includes a mounting surface on which a display screen 2 and a button 3 are provided, and a first side surface and a second side surface respectively located on both sides of the mounting surface. Sliders are provided on the first side surface and the second side surface, and the two slides are symmetrical about the main body 1. The lifting frame 4 includes a lifting portion and a hook 6. The lifting portion is clamped on both sides of the main body 1 and has a first slide groove 52 and a second slide groove. The first slide groove 52 is slidably matched with the first slide block 51 in the up and down directions, and the second slide groove is slidably matched with the second slide block in the up and down directions. The hook 6 is connected to the top of the lifting portion and a protruding spring sheet is provided on the inner side of the hook 6.

[0027] It can be understood that when in use, the bracket 4 is initially located in a position that fits the body 1. When it is needed, the bracket 4 can be pulled to make the slider slide along the slide groove, and the bracket 44 can be pulled out for use. Then the body 1 can be hung on the cable through the hook 6 for use.

[0028] The stability of the thermal signal calibrator after suspension is mainly related to two factors, one of which is the stability between the lifting part and the main body 1, and the other is the stability between the hook 6 and the cable. The lifting part and the main body 1 of the traditional thermal signal calibrator are usually matched with each other by a rotating shaft and an opening, and the suspension is achieved by rotating the lifting frame 4 upward. Since the main body 1 and the lifting frame 4 are rotationally matched, when external force is applied to the main body 1 or the lifting frame 4 (such as foreign object contact, wind blowing, etc.), it is easy to cause the main body 1 to shake. To solve this problem, the present application uses sliding matching instead of traditional rotation matching, so the lifting frame 4 and the main body 1 can only slide relative to each other in the up and down directions and cannot rotate, thereby improving the stability between the lifting frame 4 and the main body 1.

[0029] On the other hand, since a spring sheet is provided inside the hook 6, when the hook 6 is hooked on a cable, the cable can press the spring sheet, and the spring sheet can clamp the cable after deformation, thereby improving the hooking stability of the hook 6 and preventing it from shaking.

[0030] The thermal signal calibrator of the embodiment of the present invention comprises a main body 1 including a mounting surface on which a display screen 2 and a button 3 are provided, and a first side surface and a second side surface respectively located on both sides of the mounting surface, wherein sliders are provided on the first side surface and the second side surface, and the two sliders are symmetrical about the main body 1, and a lifting frame 4 comprises a lifting portion and a hook 6, the lifting portion is clamped on both sides of the main body 1 and has a first slide groove 52 and a second slide groove, the first slide groove 52 and the first slide groove are slidably matched with the first slide groove 51 in the up and down directions, and the second slide groove and the second slide groove are slidably matched with the second slide groove in the up and down directions, the hook 6 is connected to the top of the lifting portion and a protruding spring sheet is provided on the inner side of the hook 6, thereby, the lifting frame 4 and the main body 1 can only slide relative to each other in the up and down directions and cannot rotate, thereby improving the stability between the lifting frame 4 and the main body 1, and the spring sheet arranged on the inner side of the hook 6 can clamp the cable by utilizing the reaction force formed by the compression of the cable, thereby improving the stability of the thermal signal calibrator hooked on the cable, and reducing the risk of shaking and falling of the thermal signal calibrator.

[0031] Furthermore, if Figure 2 As shown, the lifting part includes a mandrel, a first guide rod and a second guide rod, the mandrel is located above the body 1, the first guide rod and the second guide rod are respectively connected to the two ends of the mandrel, and the first guide rod is provided with a first slide groove 52, the second guide rod is provided with a second slide groove, and the hook 6 is connected to the upper surface of the mandrel and is located in the middle of the mandrel. Therefore, the hook 6 is arranged in the middle of the mandrel, which is more conducive to maintaining the overall balance of the thermal signal calibrator.

[0032] Alternatively, if Figure 1As shown, a card slot 54 is provided on the top surface of the body 1, and a card plate 53 protruding downward is provided on the lower surface of the push rod. When the push rod is close to the body 1, the card plate 53 is correspondingly matched in the card slot 54. It can be understood that when the lifting frame 4 is fitted with the body 1, the card plate 53 can be inserted into the card slot 54, and the cooperation between the card plate 53 and the card slot 54 can fix the lifting frame 4 to prevent shaking.

[0033] Furthermore, corresponding connecting magnetic sheets are fixedly mounted on the card plate 53 and the card slot 54 . When the card plate 53 is located in the card slot 54 , the connecting magnetic sheets can adsorb the two together, so that the lifting bracket 4 is fixed.

[0034] Further, such as Figure 3 and Figure 4 As shown, the inner side surface of the hook 6 has a groove 71 extending along the circumference of the hook 6, and in the circumference of the hook 6, the extension size of the notch 72 of the groove 71 is smaller than the extension size of the groove 71, the spring piece includes a protrusion 74 and a sliding part 73 connected to both ends of the protrusion 74, the protrusion 74 protrudes outward from the notch 72, the sliding part 73 fits in the groove 71, and in the circumference of the hook 6, the extension size of the spring piece is larger than the extension size of the notch 72. Therefore, since the size of the notch 72 of the groove 71 is smaller than the size of the spring piece, the spring piece will not fall out of the groove 71, that is, the spring piece can be installed on the hook 6 by only utilizing the cooperation between the groove 71 and the spring piece itself, without the need for other connecting parts, the structure is simple, and the cost is saved.

[0035] Furthermore, in the circumferential direction of the hook 6, the extension dimension of the protrusion 74 is smaller than the extension dimension of the notch 72, and the extension dimension of the spring piece is smaller than the extension dimension of the groove 71. In other words, the spring piece can move relatively in the groove 71, so that when the hook 6 hooks the cable, the spring piece will not only deform itself but also move adaptively along the groove 71 according to the compression of the cable by the spring piece, so as to achieve force buffering and avoid irreversible deformation of the spring piece.

[0036] Preferably, there are a plurality of spring sheets arranged at intervals in the circumferential direction of the hook 6 .

[0037] Preferably, the plurality of spring sheets include at least two spring sheets located on different sides of the hook 6 so as to clamp the cable from different directions for better stability.

[0038] In some embodiments, a through slot 8 is provided on the bottom surface of the body 1, and a support member is provided in the through slot 8, and the support member includes a first support plate 9 and a second support plate 91, and the first support plate 9 and the second support plate 91 can move away from each other along a first direction and extend out of the through slot 8, and the first support plate 9 and the second support plate 91 can move toward each other along a first direction to be retracted into the through slot 8, and the first direction is the extension direction of the through slot 8. Therefore, when it is necessary to place the thermal signal calibrator, the first support plate 9 and the second support plate 91 can be extended out of the through slot 8, thereby increasing the support area at the bottom of the body 1 and improving the placement stability.

[0039] Furthermore, a spring 92 is provided between the first support plate 9 and the second support plate 91, and the spring 92 has a force to push the first support plate 9 and the second support plate 91 away from each other. A locking member is also provided in the through slot 8, and the locking member can lock and release the first support plate 9 and the second support plate 91. A pressing column 95 is provided on the groove wall of the through slot 8, and pressing the pressing column 95 can control the locking member to release the first support plate 9 and the second support plate 91. Therefore, when it is necessary to place the thermal signal calibrator, the pressing column 95 can be pressed to unlock the first support plate 9 and the second support plate 91, and then the spring 92 can control the first support plate 9 and the second support plate 91 to automatically move outward to achieve stable support. When it is necessary to carry the thermal calibrator, the first support plate 9 and the second support plate 91 can be pushed back and reset by external force, and the support plates and the locking member are locked again.

[0040] Specifically, the locking member includes a first lock plate and a second lock plate 93 rotatably connected to the base and opposite to each other, the first support plate 9 and the second support plate 91 are respectively provided with a first notch and a second notch accommodating the first lock plate and the second lock plate 93 at one end facing the locking member, and the first notch and the second notch are respectively provided with a first snap-in and a second snap-in on the side faces of the groove wall of the through groove 8 facing the first notch and the second notch, and the first lock plate and the second lock plate 93 are respectively provided with a first snap-in and a second snap-in that are adapted to the first snap-in and the second snap-in, and are pressed on the groove wall of the through groove 8 and whose inner ends are partially opposite to the first lock plate and the second lock plate 93. When pressed, the first lock plate and the second lock plate 93 rotate outward and disengage the first snap-in and the second snap-in 94 from the corresponding snap-in, and the first lock plate and the second lock plate 93 are both provided with a return torsion spring 97.

[0041] like Figure 5As shown, the through slot 8 is arranged along the width direction of the main body 1, the first support plate 9 and the second support plate 91 are arranged at intervals in the width direction of the main body 1, and a spring 92 is arranged between the two. The front ends of the first support plate 9 and the second support plate 91 are close to each other and are recessed inward to form a notch. The first lock plate and the second lock plate 93 are opposite to each other in the width direction of the main body 1, and the ends close to each other are provided with rotating shafts, and the ends away from each other are provided with card protrusions. The inner end of the pressing column 95 is provided with a push plate 96, and the outer end is provided with a pull plate. After pressing the pull plate, the push plate 96 can drive the tail ends of the first lock plate and the second lock plate 93 to rotate, thereby driving the card protrusions of the head to rotate outward to disengage from the corresponding card slots, and then the spring 92 can drive the first support plate 9 and the second support plate 91 to move outward.

[0042] Furthermore, when the pressing column 95 is no longer pressed from the outside, the torsion spring 97 can drive the first locking plate and the second locking plate 93 to rotate and reset, and the external force pushes the first support plate 9 and the second support plate 91 to reset, and the latch cooperates with the latch again to achieve the locking of the first support plate 9 and the first locking plate, and the locking of the second support plate 91 and the second locking plate 93.

[0043] In some embodiments, a guide groove extending along the length direction is provided on the inner side wall of the through groove 8, and the first support plate 9 and the second support plate 91 are both provided with guide blocks cooperating with the guide groove. Thus, the cooperation between the guide block and the guide groove can guide the movement of the first support plate 9 and the second support plate 91, and at the same time can play an assembly positioning role to prevent the first support plate 9 and the second support plate 91 from falling off from the base after the locking member is released.

[0044] Furthermore, if Figure 5 As shown, a stopper 10 is further provided on the bottom surface of the through slot 8, and the sides of the first support plate 9 and the second support plate 91 that are away from each other are both provided with a clamping edge bent upward, and when the first support plate 9 and the second support plate 91 are close to each other, the clamping edge abuts against the stopper 10. In other words, the stopper 10 can play a limiting role when the first support plate 9 and the second support plate 91 are reset, so as to avoid excessive movement and damage to the components.

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axis", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0046] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0047] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0049] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0050] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A thermal signal calibrator, characterized in that: include: A body, the body comprising a mounting surface for setting a display screen and buttons, and a first side surface and a second side surface respectively located on both sides of the mounting surface, wherein the first side surface and the second side surface are both provided with sliders, and the two sliders are symmetrical about the body; The lifting rack includes a lifting part and a hook, the lifting part is clamped on both sides of the main body and has a first slide groove and a second slide groove, the first slide groove and the first slider are slidably matched in the up and down directions, the second slide groove and the second slider are slidably matched in the up and down directions, the hook is connected to the top of the lifting part and a protruding spring sheet is provided on the inner side of the hook.

2. The thermal signal calibrator according to claim 1, characterized in that: The lifting part includes a push rod, a first guide rod and a second guide rod, the push rod is located above the main body, the first guide rod and the second guide rod are respectively connected to the two ends of the push rod, and the first guide rod is provided with the first slide groove, and the second guide rod is provided with the second slide groove, and the hook is connected to the upper surface of the push rod and is located in the middle position of the push rod.

3. The thermal signal calibrator according to claim 2, characterized in that: A card slot is arranged on the top surface of the main body, and a card plate protruding downward is arranged on the lower surface of the push rod. When the push rod is close to the main body, the card plate is correspondingly matched in the card slot.

4. The thermal signal calibrator according to claim 1, characterized in that: The inner side surface of the hook has a groove extending along the circumference of the hook, and in the circumference of the hook, the extension dimension of the notch of the groove is smaller than the extension dimension of the groove, the spring sheet includes a protruding portion and a sliding portion connected to both ends of the protruding portion, the protruding portion protrudes outward from the notch, the sliding portion is fitted in the groove, and in the circumference of the hook, the extension dimension of the spring sheet is larger than the extension dimension of the notch.

5. The thermal signal calibrator according to claim 4, characterized in that: In the circumferential direction of the hook, the extension dimension of the protrusion is smaller than the extension dimension of the notch, and the extension dimension of the elastic sheet is smaller than the extension dimension of the groove.

6. The thermal signal calibrator according to claim 1, characterized in that: The spring sheets are multiple and are arranged at intervals in the circumferential direction of the hook.

7. The thermal signal calibrator according to claim 1, characterized in that: A through slot is provided on the bottom surface of the main body, and a support member is provided in the through slot, wherein the support member includes a first support plate and a second support plate, wherein the first support plate and the second support plate can move away from each other along a first direction and extend out of the through slot, and the first support plate and the second support plate can move toward each other along the first direction to be retracted into the through slot, and the first direction is an extension direction of the through slot.

8. The thermal signal calibrator according to claim 7, characterized in that: A spring is provided between the first support plate and the second support plate, and the spring has a force that pushes the first support plate and the second support plate away from each other. A locking piece is also provided in the through slot, and the locking piece can lock and release the first support plate and the second support plate. A pressing column is provided on the slot wall of the through slot, and pressing the pressing column can control the locking piece to release the first support plate and the second support plate.

9. The thermal signal calibrator according to claim 8, characterized in that: The locking member includes a first locking plate and a second locking plate that are rotatably connected to the base and opposite to each other, and the first support plate and the second support plate are respectively provided with a first notch and a second notch at one end facing the locking member to accommodate the first locking plate and the second locking plate, and the first notch and the second notch are respectively provided with a first latching hole and a second latching hole on the side surfaces of the slot wall facing the through slot, the first locking plate and the second locking plate are respectively provided with a first latching protrusion and a second latching protrusion that are adapted to the first latching hole and the second latching hole, the pressing hold is penetrated on the slot wall of the through slot and its inner end is partially opposite to the first locking plate and the second locking plate. When the pressing hold is pressed, the first locking plate and the second locking plate are rotated outwardly and the first latching protrusion and the second latching protrusion are disengaged from the corresponding latching holes, and the first locking plate and the second locking plate are both provided with a return torsion spring.

10. The thermal signal calibrator according to claim 9, characterized in that: A guide groove extending along the length direction of the through groove is provided on the inner side wall of the through groove, and the first support plate and the second support plate are both provided with a guide block matched with the guide groove; A limit block is also provided on the bottom surface of the through slot, and the side edges of the first support plate and the second support plate that are away from each other are provided with upwardly bent clamping edges, and when the first support plate and the second support plate are close to each other, the clamping edges abut against the limit block.

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