A temperature measuring device

Abstract

The application relates to the technical field of temperature detection, and discloses a temperature measuring device, which comprises a shell, a moving block and a temperature measuring head. The shell comprises a handle and a gun head connected to one end of the handle. The gun head is provided with a receiving groove extending along a first direction. The groove opening of the receiving groove is arranged on the end face of the gun head away from the handle. The moving block is arranged in the receiving groove and can move along the first direction to extend out of or be accommodated in the receiving groove. The temperature measuring head is connected to one end of the moving block facing the groove opening of the receiving groove. The receiving groove is arranged on the gun head, the moving block capable of moving along the first direction is arranged in the receiving groove, and the temperature measuring head is connected to the moving block, so that when facing the narrow gap of a cabinet, a cable or other equipment, the temperature measuring head only needs to be pushed into the narrow gap by the moving block to ensure that the temperature measuring head can be in close contact with or aligned with the object to be measured, and the problem that the traditional temperature measuring head cannot be extended into the narrow gap and the temperature measurement is inaccurate due to the large distance or angle deviation can be solved.

Description

Technical Field

[0001] This application relates to the field of temperature detection technology, and in particular to a temperature measuring device. Background Technology

[0002] The safety of equipment within communication equipment rooms is fundamental to ensuring the smooth operation of communication networks. However, the trend towards high centralization and high power density in communication equipment has led to localized overheating in many equipment rooms, sometimes resulting in equipment shutdowns and service interruptions. Therefore, during network maintenance, it is necessary to frequently measure the surface temperature of cabinets, power supplies, and cables non-contactly to determine if the equipment is functioning correctly. Currently, the most widely used method is for staff to periodically measure the temperature of cabinets, power supplies, and cables using infrared thermometers to determine if the equipment is operating normally. However, when measuring the temperature of components in confined spaces, existing thermometers cannot reach into these spaces, resulting in inaccurate temperature readings. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, this application provides a temperature measuring device, which aims to solve the problem that current temperature measuring instruments cannot measure temperature in narrow space scenarios.

[0004] This application provides a temperature measuring device, including: The housing includes a grip and a gun head connected to one end of the grip, the gun head having a receiving groove extending in a first direction, the opening of the receiving groove being formed on the end face of the gun head away from the grip. A movable block, which is disposed in the storage slot and can move along the first direction to extend out of or be stored in the storage slot; A temperature measuring head is connected to one end of the moving block facing the opening of the receiving slot. In one embodiment, the temperature measuring device further includes a pusher that extends through the housing along a second direction and into the receiving groove, with at least a portion of the pusher protruding outside the receiving groove and capable of reciprocating along the first direction to drive the moving block to move; wherein the second direction is perpendicular to the first direction.

[0005] In one embodiment, a limiting strip is connected to one end of the push-out member that extends into the receiving groove; wherein the limiting strip includes an integral abutment section and a limiting section, the abutment section extends along the first direction for abutting against the moving block, the limiting section is curved upward relative to the first direction, and the groove wall of the receiving groove is provided with a curved sliding groove, and the limiting section is slidably received in the sliding groove. In one embodiment, the movable block has a groove on the surface that abuts against the abutting section, and limiting teeth are distributed in the groove along the first direction. The abutting section has locking teeth on the surface facing the groove, and the locking teeth are engaged with the limiting teeth. In one embodiment, the housing is provided with a guide cavity communicating with the storage groove along the second direction, and the push-out member extends into the storage groove through the guide cavity and can move along the first direction within the guide cavity.

[0006] In one embodiment, the device further includes a connecting wire harness spirally wound along the first direction. The connecting wire harness is disposed between the bottom of the storage groove and the moving block, with one end of the connecting wire harness passing through the moving block and electrically connected to the temperature measuring head, and the other end passing through the bottom of the storage groove and extending into the handle to be electrically connected to the circuit board. In one embodiment, the movable block has an arc-shaped groove, the temperature measuring head is rotatably disposed in the arc-shaped groove, and the temperature measuring head extends out of the arc-shaped groove. In one embodiment, the device further includes a limiting frame and a connecting rod. The movable block is provided with a limiting groove that communicates with the arc-shaped groove. The limiting frame is disposed in the limiting groove and can slide relative to the groove wall of the limiting groove. The connecting rod is located between the limiting frame and the temperature measuring head, and one end of the connecting rod is connected to the limiting frame and the other end is connected to the temperature measuring head. In one embodiment, the middle part of the limiting frame extends along the first direction with an extension portion, and the end of the connecting rod away from the temperature measuring head extends into the extension portion and is connected to the limiting frame. The portion of the connecting rod located in the extension portion is sleeved on a spring, and the end of the connecting wire harness used to connect the temperature measuring head passes through the extension portion and the connecting rod in sequence. In one embodiment, in the first direction, a display screen is provided on the end face of the gun head facing away from the opening of the receiving slot. The technical solutions provided in this application have the following advantages compared with the prior art: By setting a storage slot in the nozzle and a movable block that can move along a first direction inside the storage slot, and the temperature measuring head is connected to the movable block, when facing narrow gaps in equipment such as cabinets and cables, it is only necessary to push the movable block to drive the temperature measuring head into the narrow gap, ensuring that the temperature measuring head can make close contact with or be aligned with the object to be measured. This avoids the inaccurate temperature measurement caused by the inability of traditional temperature measuring heads to enter narrow gaps due to excessive distance or angular deviation. Attached Figure Description

[0007] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0008] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0009] In the attached image: Figure 1 This is a schematic diagram of the structure of a temperature measuring device according to this application; Figure 2 This is a cross-sectional schematic diagram of a temperature measuring device according to this application; Figure 3 yes Figure 2 Enlarged view of point A in the middle; Figure 4 yes Figure 3 Enlarged view of point B in the middle; Figure 5 This is a schematic diagram of the structure of the housing in a temperature measuring device according to this application; Figure 6 This is a structural schematic diagram of the moving block, temperature measuring head, and ejector in a temperature measuring device according to this application.

[0010] Icon labels: 10. Housing; 11. Grip; 12. Gun head; 12a. Storage slot; 12b. Guide cavity; 12C. Slide groove; 20. Push-out part; 30. Display screen; 40. Moving block; 40a. Limiting groove; 40b. Groove; 40c. Limiting tooth; 50. Temperature measuring head; 60. Connecting wire harness; 70. Temperature measuring button; 80. Limiting strip; 80a. Clamping tooth; 81. Abutting section; 82. Limiting section; 90. Limiting frame; 91. Extension; 100. Connecting rod; 110. Spring; X, First direction; Y, Second direction. Detailed Implementation

[0011] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0012] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, that component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0013] In the following description, specific details such as particular system structures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0014] The technical terms used in the embodiments of this application are explained and described below.

[0015] The first and second directions defined in this embodiment are for ease of describing the positional relationship of the components; specifically, the gun head can be used as a reference. The first direction is perpendicular to the second direction, and the first direction refers to the length direction of the gun head (referring to the reference point). Figure 1 The X direction in the text refers to the direction of the gun head's height (see the X direction). The second direction refers to the direction of the gun head's height (see the X direction). Figure 1 Y direction in ).

[0016] The temperature sensor 50 refers to a component that is directly used to detect the temperature of the object being measured and output a temperature signal. The temperature sensor 50 is an existing technology that uses integrated temperature sensing elements (such as infrared temperature sensors, thermocouples, and resistance temperature detectors) to sense the temperature characteristics of the object being measured and convert these characteristics into identifiable electrical or optical signals.

[0017] Figure 1 This is a schematic diagram of the structure of a temperature measuring device according to this application; Figure 2 This is a cross-sectional schematic diagram of a temperature measuring device according to this application. Please refer to... Figure 1 and Figure 2 This application provides a temperature measuring device, which includes a housing 10, a movable block 40, and a temperature measuring head 50.

[0018] Please refer to Figure 1 The housing 10 includes a handle 11 and a nozzle 12 connected to one end of the handle 11. The nozzle 12 and the handle 11 can be a single piece or separate parts. Specifically, the nozzle 12 and the handle 11 can be integrally molded into the housing 10, or the nozzle 12 and the handle 11 can be formed as two separate parts, and then connected (e.g., snap-fit, riveting) to form the housing 10. The end of the handle 11 near the nozzle 12 bends away from the nozzle 12 to form an arc surface that fits the palm, providing a better grip. Furthermore, the handle 11 is equipped with a temperature measurement button 70, which triggers the temperature measuring head 50 to measure the temperature of the object to be measured. After the temperature measuring device is turned on, the user holds the handle 11 and aligns the temperature measuring head 50 with the object to be measured; then, the user simply presses the temperature measurement button 70 to obtain the temperature value. It should be noted that pressing the temperature measurement button at 70 degrees Celsius to activate temperature measurement is common knowledge in this field and will not be elaborated upon here.

[0019] Please refer to Figure 2 In one embodiment, the gun head 12 has a receiving groove 12a extending along a first direction X. The opening of the receiving groove 12a is located on the end face of the gun head 12 away from the handle 11. A moving block 40 is disposed within the receiving groove 12a. A temperature measuring head 50 is connected to the end of the moving block 40 facing the opening of the receiving groove 12a, and the moving block 40 can move along the first direction X to extend out of or retract into the receiving groove 12a. That is to say, the temperature measuring device of this embodiment has a temperature measuring state and a non-temperature measuring state. When the temperature measuring device is in the temperature measuring state, the temperature measuring head 50 moves forward along the first direction X with the moving block 40 to extend out of the storage slot 12a, so that the temperature measuring head 50 is aligned with the object to be measured for temperature measurement; when the temperature measuring device is not in the temperature measuring state, the temperature measuring head 50 moves backward along the first direction X with the moving block 40 to retract into the storage slot 12a. This can prevent the temperature measuring head 50 from colliding or rubbing with external objects or being contaminated by dust or oil when carried, stored or not in temperature measuring operation, thereby effectively protecting the temperature measuring head 50 and reducing maintenance costs caused by component damage.

[0020] In summary, the temperature measuring device of this application provides a receiving groove 12a in the nozzle 12 and a movable block 40 that can move along the first direction X in the receiving groove 12a. The temperature measuring head 50 is connected to the movable block 40. This allows the temperature measuring head 50 to be pushed into the narrow gaps of equipment such as cabinets and cables, ensuring that the temperature measuring head 50 can be in close contact with or aligned with the object to be measured. This avoids the inaccurate temperature measurement caused by excessive distance or angular deviation due to the inability of the traditional temperature measuring head 50 to be inserted into the narrow gap.

[0021] In practical applications, the moving block 40 can be moved along the first direction X automatically using a power structure found in existing technology, or it can be done manually; there is no limitation on this method. However, to facilitate understanding of the operating principle of the temperature measuring device, the following explanation uses the method of manually moving the moving block 40 as an example, and the specific structure used is as follows: Figure 3 yes Figure 2 An enlarged view of point A in the middle. Please refer to... Figure 3 The temperature measuring device also includes a pusher 20, which penetrates the housing 10 along the second direction Y and extends into the receiving groove 12a. At least part of the pusher 20 protrudes outside the receiving groove 12a and can move back and forth along the first direction X to drive the moving block 40 to move. That is, the part of the pusher 20 protruding outside the receiving groove 12a is located at the top of the gun head 12, providing the user with a direct and accessible operating point, so that the user can push the moving block 40 to move along the first direction X without the need for additional tools. That is, the user pushes the part protruding outside the receiving groove 12a to move along the first direction X. When the part of the pusher 20 extending into the receiving groove 12a comes into contact with the moving block 40, the moving block 40 is pushed out of the receiving groove 12a as the pusher 20 continues to move.

[0022] Figure 5 This is a schematic diagram of the housing 10 in a temperature measuring device according to this application. Please refer to... Figure 3 and Figure 5The housing 10 has a guide cavity 12b along the second direction Y, which connects to the receiving groove 12a. The pusher 20 extends into the receiving groove 12a through the guide cavity 12b and can move along the first direction X within the guide cavity 12b. That is, after the pusher 20 passes through the guide cavity 12b, the outer periphery of the pusher 20 fits against the inner wall of the guide cavity 12b, so that when the user pushes the pusher 20 to move along the first direction X, the pusher 20 must move along the extension direction of the guide cavity 12b (i.e., move along the first direction X), avoiding the pusher 20 from tilting or shaking due to external force deviation. This ensures that the driving force of the pusher 20 can be completely transmitted to the moving block 40 along the first direction X, thereby making the extension and retraction trajectory of the temperature measuring head 50 more stable and reducing the risk of collision between the temperature measuring head 50 and the object to be measured due to unstable movement.

[0023] In addition, when the ejector 20 moves, the guide cavity 12b can prevent external dust, water vapor, oil and other pollutants from directly entering the storage groove 12a through the penetration between the ejector 20 and the housing 10. This can protect the moving block 40 and the temperature measuring head 50 in the storage groove 12a from contamination, avoid problems such as movement jamming and sensor sensitivity reduction caused by the accumulation of pollutants, and improve the reliability of the temperature measuring device in complex environments.

[0024] In practical applications, the guide cavity 12b can only constrain the push-out part 20 to move in a predetermined direction (i.e., the first direction X). When the moving block 40 is driven to move in the first direction X, it will deviate laterally or shake due to the lack of constraint. This will cause unnecessary friction between the moving block 40 and the wall of the receiving groove 12a, or even cause jamming, thus affecting the smooth extension and retraction of the temperature measuring head 50.

[0025] Figure 6 This is a schematic diagram of the moving block 40, the temperature measuring head 50, and the ejector 20 in a temperature measuring device according to this application. Please refer to... Figure 3 and Figure 6 In one embodiment, one end of the push-out member 20 that extends into the receiving groove 12a is connected to a limiting strip 80. The limiting strip 80 includes an integral abutment section 81 and a limiting section 82. The abutment section 81 extends along a first direction X and is used to abut against the moving block 40. The limiting section 82 is curved upward relative to the first direction X. The groove wall of the receiving groove 12a has a curved sliding groove 12C, and the limiting section 82 is slidably received in the sliding groove 12C.

[0026] In other words, when the pusher 20 pushes the moving block 40 to move along the first direction X, the limiting segment 82 slides synchronously within the slide groove 12C. The curved path of the slide groove 12C constrains the movement trajectory of the limiting segment 82, thereby limiting the lateral degree of freedom of the moving block 40 and effectively preventing it from deviating or swaying during movement. Meanwhile, the abutting segment 81 always maintains stable contact with the moving block 40, ensuring uniform transmission of thrust and improving the smoothness of movement. At the same time, the cooperation structure between the limiting segment 82 and the slide groove 12C does not affect the normal extension and retraction function of the pusher 20, balancing guiding accuracy and operational flexibility, and further ensuring the reliability and response speed of the extension and retraction of the temperature measuring head 50.

[0027] Please refer to Figure 6 Furthermore, the moving block 40 has a groove 40b on its surface that abuts against the abutting section 81. Limiting teeth 40c are distributed within the groove 40b along the first direction X. The abutting section 81 has a locking tooth 80a on its surface facing the groove 40b, which engages with the limiting tooth 40c. In other words, the abutting section 81 and the moving block 40 are mechanically locked by the interlocking of the locking tooth 80a and the limiting tooth 40c. This ensures that when the pusher 20 is pushed to move along the first direction X, the limiting tooth 80 always abuts against the moving block 40, thus resisting sliding friction during the driving process. This ensures that the movement of the pusher 20 is accurately transmitted to the moving block 40, avoiding empty strokes caused by slippage (i.e., the pusher 20 moves but the moving block 40 does not move). This guarantees that the extension and retraction of the temperature sensor 50 is completely synchronized with the operating command, especially in confined spaces where fine adjustments are required, preventing operational errors caused by power transmission failure.

[0028] When the limiting segment 82 slides to abut against the bottom of the groove 12C, the limiting segment 82 and the abutting segment 81 can no longer move. At this time, the moving block 40 only extends partially out of the storage groove 12a. If you want to extend the temperature measuring head 50 further, you can manually pull the moving block 40 outward to disengage the limiting tooth 40c from the locking tooth 80a, and then pull the moving block 40 out. After the entire moving block is pulled out, the temperature measuring head can be inserted into the narrow space and placed on the surface of the object to be measured. This is suitable for temperature measurement in narrow spaces. After the temperature measurement is completed, simply push the moving block 40 back into the storage groove 12a. After the limiting tooth 40c of the moving block 40 re-engages with the locking tooth, the moving block 40 and the limiting strip 80 form a mechanical lock again. At this time, as the moving block continues to be pushed back into the storage groove 12a, the limiting segment 82 slides away from the bottom of the groove 40a, and at the same time, it drives the push-out part 20 back to the initial position.

[0029] In practical applications, the temperature value measured by the temperature sensor 50 is converted into an electrical signal and transmitted to the circuit board inside the grip 11 to read the measured temperature. Therefore, a connecting harness 60 is needed to electrically connect the temperature sensor 50 to the circuit board. However, when the temperature sensor 50 extends and retracts with the movement of the moving block 40, if a traditional straight harness is used, the fixed length will cause pulling or accumulation, leading to harness breakage. Therefore, in one embodiment, a connecting harness 60 is further included, spirally wound along the first direction X. The connecting harness 60 is located between the bottom of the storage groove 12a and the moving block 40, with one end of the connecting harness 60 passing through the moving block 40 and electrically connected to the temperature sensor 50, and the other end passing through the bottom of the storage groove 12a and extending into the grip 11 to electrically connect to the circuit board.

[0030] In other words, when the moving block 40 extends along the first direction X, the spiral connecting harness 60 naturally unfolds and elongates, extending synchronously with the moving block 40; when the moving block 40 retracts, the connecting harness 60 can spring back and retract, restoring its spiral shape. This design structure can perfectly adapt to the reciprocating motion of the moving block 40, avoiding the pulling or piling caused by the fixed length of traditional straight harnesses, fundamentally preventing the harness from breaking due to excessive stretching or the insulation layer from being damaged by folding and compression, and ensuring the physical integrity of the power supply and signal transmission links.

[0031] In narrow environments with dense cabling and cabinets, the objects to be measured (such as inclined cables, vertical circuit board edges, and bent power interfaces) are often not at a horizontal or vertical angle directly facing the temperature measuring instrument. If a traditional temperature measuring instrument is used, even if the fixed-angle temperature measuring head 50 can be inserted into the space, the angle deviation may cause the measuring end to not be directly facing the target, resulting in errors in the measured temperature value.

[0032] Therefore, in one embodiment, the movable block 40 has an arc-shaped groove, and the temperature measuring head 50 is rotatably disposed within the arc-shaped groove, with the temperature measuring head 50 extending out of the arc-shaped groove. In this way, the temperature measuring head 50 can rotate within the arc-shaped groove, allowing for flexible adjustment of the temperature measuring angle. For example, when facing a cable tilted at 45°, the temperature measuring head 50 can be rotated to be perpendicular to the cable axis; when facing a vertical circuit board surface, it can be rotated to be horizontally aligned, thus ensuring that the temperature measuring head 50 can still accurately align with the area to be measured even in narrow spaces with complex angles.

[0033] In one embodiment, the device further includes a limiting frame 90 and a connecting rod 100. The moving block 40 is provided with a limiting groove 40a communicating with the arc-shaped groove. The limiting frame 90 is disposed within the limiting groove 40a and can slide relative to the groove wall of the limiting groove 40a. The connecting rod 100 is located between the limiting frame 90 and the temperature measuring head 50, with one end of the connecting rod 100 connected to the limiting frame 90 and the other end connected to the temperature measuring head 50. Because the limiting frame 90 and the temperature measuring head 50 are rigidly connected through the connecting rod 100, when the temperature measuring head 50 rotates, the groove wall of the limiting groove 40a is tightly fitted with the outer periphery of the limiting frame 90, so that the limiting frame 90 can only slide along the extension direction of the limiting groove 40a and cannot move radially perpendicular to the groove wall, thereby restricting the temperature measuring head 50 from tilting back and forth or left and right.

[0034] Furthermore, the middle of the limiting frame 90 extends into an extension 91 along the first direction X. One end of the connecting rod 100, away from the temperature measuring head 50, extends into the extension 91 and connects to the limiting frame 90. The portion of the connecting rod 100 located within the extension 91 is fitted onto the spring 110. A connecting wire harness 60, used to connect one end of the temperature measuring head 50, passes sequentially through the extension 91 and the connecting rod 100. In other words, because the connecting rod 100 is rigidly connected to the temperature measuring head 50, the constraint of the extension 91 on the connecting rod 100 is synchronously transmitted to the temperature measuring head 50, preventing excessive radial sway during rotation. In addition, after adjusting the angle of the temperature measuring head 50, the elastic tension of the spring 110 keeps the connecting rod 100 pressed against the inner wall of the extension 91, preventing loosening due to gaps. Simultaneously, after slight external force interference, it helps the temperature measuring head 50 maintain its current angle, reducing unnecessary angular deviation. Please refer to Figure 1 In one embodiment, a display screen 30 is provided on the end face of the gun head 12 facing away from the opening of the receiving groove 12a in the first direction X. Thus, the measured temperature value can be quickly displayed using the display screen 30 for the user to read quickly.

[0035] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

Claims

1. A temperature measuring device, characterized in that, include: The housing includes a grip and a gun head connected to one end of the grip, the gun head having a receiving groove extending in a first direction, the opening of the receiving groove being formed on the end face of the gun head away from the grip. A movable block, which is disposed in the storage slot and can move along the first direction to extend out of or be stored in the storage slot; A temperature measuring head is connected to one end of the moving block facing the opening of the receiving slot.

2. The temperature measuring device according to claim 1, characterized in that, The temperature measuring device further includes a push-out member that extends through the housing along a second direction and into the receiving groove, with at least a portion of the push-out member protruding outside the receiving groove and capable of reciprocating along the first direction to drive the moving block to move; wherein the second direction is perpendicular to the first direction.

3. The temperature measuring device according to claim 2, characterized in that, One end of the push-out member that extends into the storage groove is connected to a limiting strip; wherein, the limiting strip includes an integral abutment section and a limiting section, the abutment section extends along the first direction for abutting against the moving block, the limiting section is bent upward relative to the first direction, and the groove wall of the storage groove is provided with a curved sliding groove, and the limiting section is slidably stored in the sliding groove.

4. The temperature measuring device according to claim 3, characterized in that, The movable block has a groove on the surface that abuts against the abutting section. Limiting teeth are distributed in the groove along the first direction. The abutting section has locking teeth on the surface facing the groove. The locking teeth are engaged with the limiting teeth.

5. The temperature measuring device according to claim 2, characterized in that, The housing is provided with a guide cavity communicating with the storage groove along the second direction. The push-out member extends into the storage groove through the guide cavity and can move along the first direction within the guide cavity.

6. The temperature measuring device according to claim 1, characterized in that, It also includes a connecting wire harness spirally wound along the first direction. The connecting wire harness is located between the bottom of the storage groove and the moving block. One end of the connecting wire harness passes through the moving block and is electrically connected to the temperature measuring head, and the other end passes through the bottom of the storage groove and extends into the handle to be electrically connected to the circuit board.

7. The temperature measuring device according to claim 6, characterized in that, The movable block has an arc-shaped groove, the temperature measuring head is rotatably disposed in the arc-shaped groove, and the temperature measuring head extends out of the arc-shaped groove.

8. The temperature measuring device according to claim 7, characterized in that, It also includes a limiting frame and a connecting rod. The moving block is provided with a limiting groove that communicates with the arc-shaped groove. The limiting frame is set in the limiting groove and can slide relative to the groove wall of the limiting groove. The connecting rod is located between the limiting frame and the temperature measuring head, and one end of the connecting rod is connected to the limiting frame and the other end is connected to the temperature measuring head.

9. The temperature measuring device according to claim 8, characterized in that, The limiting frame has an extension portion extending along the first direction in the middle. The end of the connecting rod away from the temperature measuring head extends into the extension portion and is connected to the limiting frame. The portion of the connecting rod located in the extension portion is sleeved on a spring. The connecting wire harness is used to connect one end of the temperature measuring head, which passes through the extension portion and the connecting rod in sequence.

10. The temperature measuring device according to claim 1, characterized in that, In the first direction, a display screen is provided on the end face of the gun head that is away from the opening of the storage slot.

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