Embedded temperature sensor

Abstract

The invention provides an embedded temperature sensor, and relates to the field of temperature sensors, the embedded temperature sensor comprises a sensor main body and a threaded sleeve fixedly connected above an outer wall, the threaded sleeve is in threaded connection with an auxiliary threaded ring, and the auxiliary threaded ring is composed of an upper auxiliary threaded ring, a lower auxiliary threaded ring and two U-shaped side rods. And the auxiliary threaded ring is in threaded connection with the threaded sleeve. Through the arranged fixing device, in the process of connecting with an external thread structure, the fixing device can be automatically assembled in the process of pairing with the external thread structure through an internal self-adaptive structure, so that a thread ring with a corresponding size in the fixing device can automatically fall down, and the external thread structure can be better paired with a sensor; the effect that the sensor can adapt to different scenes is achieved.

Description

Technical Field

[0001] The present invention relates to the field of temperature sensors, and in particular to an embedded temperature sensor. Background Art

[0002] As a temperature measurement device widely used in industrial automation, environmental monitoring, smart home and other fields, embedded temperature sensors have achieved intelligent, miniaturized and high-precision development in recent years driven by embedded technology. However, in humid environments, this type of sensor faces a more prominent problem: the single fixed structure is prone to fall off. Due to the corrosion and softening effect of the humid environment on the adhesive or fixings, as well as improper design or installation of the fixed structure, the sensor may loosen or fall off, which will not only affect the accuracy of temperature measurement, but also may lead to serious consequences such as equipment failure or data loss. Therefore, when using embedded temperature sensors in humid environments, special attention should be paid to the reliability and stability of the fixed structure. Although this problem challenges the application of sensors, through continuous technological innovation and optimization, it is expected that the adaptability and durability of embedded temperature sensors in harsh environments will be further improved in the future.

[0003] For example, the Chinese utility model patent CN212275101U discloses an "embedded temperature sensor". Its specification discloses: embedded high-insulation temperature sensors are mostly used in water heater products. They are in a humid environment for a long time. They are required to be tightly matched with the water heater shell and pipelines, fixed in position in the shell, and the sensor does not shake in a vibrating environment and has accurate temperature sensing. The material is required not to debond or crack in a humid environment for a long time. The temperature sensor as a whole can sense temperature stably and quickly in a small environment, maintain accurate temperature sensing position, and reduce temperature sensing errors. At the same time, when in direct contact with hot water, it is required not to affect the sealing reliability in the water tank, and there must be no water leakage at the installation position, and there must be no leakage and high safety effect; the above patents can prove the defects of the existing technology.

[0004] Therefore, we make improvements to this and propose an embedded temperature sensor. Summary of the invention

[0005] The purpose of the present invention is to alleviate the problem that the existing single connection structure of the temperature sensor is prone to detachment.

[0006] In order to achieve the above-mentioned object of the invention, the present invention provides an embedded temperature sensor to improve the above-mentioned problem.

[0007] The specific application is as follows: The invention comprises a sensor body and a threaded sleeve fixedly connected to the upper part of the outer wall, wherein the threaded sleeve is threadedly connected with an auxiliary threaded ring, wherein the auxiliary threaded ring is composed of two upper and lower auxiliary threaded rings and two U-shaped side rods, and the auxiliary threaded ring is threadedly connected with the threaded sleeve, and is applied to the case where the outer threaded connection structure is consistent with the inner diameter of the outer sleeve, wherein the sensor body is connected with a sensor receiving rod, wherein the outer ring of the sensor receiving rod is provided with an outer sleeve, and both sides of the outer sleeve are provided with a fixed shell, and the interior of the fixed shell is a hollow structure, wherein the interior of the outer sleeve is provided with a fixing device, and the interior of the fixed shell is provided with a transmission device, wherein the fixing device comprises a plurality of spring telescopic rods fixedly connected to the inner wall at the top of the outer sleeve, wherein each of the spring telescopic rods independently drives a threaded ring fixedly connected thereto, and wherein the end of the spring telescopic rod is provided with a plurality of threaded rings of different diameters, wherein the inner ring of the threaded ring is provided with a thread line which does not reach the top of the inner ring from bottom to top, wherein each of the threaded rings is sequentially sleeved from large to small and in close contact, and a sealing gasket is provided on the outer wall at the bottom of the outermost threaded ring.

[0008] As a preferred technical solution of the present application, the fixing device also includes a U-shaped fixing plate connected to the inner wall of the fixing shell, a fixing block is fixedly connected to the inner wall of the fixing shell, a special-shaped tube is fixedly connected to the fixing block, the U-shaped fixing plate is used to maintain the stability of the special-shaped tube, the special-shaped tube is fixedly connected to the U-shaped fixing plate, and the special-shaped tube includes a return bend structure on one side of the U-shaped fixing plate.

[0009] As a preferred technical solution of the present application, the fixing device also includes a telescopic tube arranged on the fixed block, a triangular block is fixedly connected to the telescopic tube, an inclined groove is provided on the top of the triangular block, a concave groove is provided on the triangular block, the inclined surface direction of the inclined groove is opposite to the inclined side direction corresponding to the right-angled side of the triangular block, the inclined groove above the triangular block is used to squeeze the triangular block and move the triangular block to both sides after the threaded ring moves downward, the return bend structure changes the flow direction of the airflow, so that the movement direction of the triangular block is consistent with the movement direction of the piston, and the U-shaped structure on the other side of the U-shaped fixing plate, the U-shaped structure part of the special-shaped tube is connected to the fixed block, providing space for the movement of the telescopic tube and providing guidance for the flow of airflow.

[0010] As a preferred technical solution of the present application, the fixing device also includes a piston arranged inside the special-shaped tube, and a connecting column is fixedly connected to one side of the piston. The connecting column is located in the opening direction of the special-shaped tube. The piston squeezes the circular ring through changes in air pressure so that the circular ring moves under the restriction of the special-shaped tube.

[0011] As a preferred technical solution of the present application, the transmission device includes a return ring connected to a connecting column, the return ring is sleeved on a special-shaped tube, the bottom of the return ring is connected to a connecting plate via a fixed plate, a groove is provided on the connecting plate, both sides of the groove are connected to torsion springs, and the torsion springs keep the U-shaped block in a vertical state.

[0012] As a preferred technical solution of the present application, the transmission device also includes an extension plate connected between the two torsion springs, and a U-shaped block is fixedly connected to the extension plate, and the recessed part and the side lines on both sides of the U-shaped block are arc edges.

[0013] As a preferred technical solution of the present application, the transmission device also includes a bent rod arranged in the concave groove, the end of the bent rod is connected to a turning rod, a limiting sleeve used in conjunction with the bent rod is fixedly connected to the connecting plate, the end of the bent rod away from the turning rod is a Z-shaped structure, and the turning rod is in contact with the U-shaped block.

[0014] As a preferred technical solution of the present application, the transmission device also includes a driving rod slidably connected to the inside of the triangular block, the driving rod is fixedly connected to the curved rod, and the driving rod is located on the outer wall of the triangular block and is sleeved with a fixed sleeve.

[0015] As a preferred technical solution of the present application, the transmission device also includes a return spring fixedly connected to the fixed sleeve, and one end of the return spring away from the fixed sleeve is fixedly connected to the inner wall of the triangular block. The return spring is sleeved on the driving rod, and one end of the driving rod away from the curved rod extends to the outside of the triangular block.

[0016] As a preferred technical solution of the present application, the transmission device also includes a through groove opened on the U-shaped fixing plate for use with the bent rod, and the bent rod and the through groove are not on the same plane as the special-shaped tube.

[0017] Compared with the prior art, the present invention has the following beneficial effects: In the scheme of this application: 1. In order to solve the problem of incompatibility caused by the difficulty of the temperature sensor in the prior art to adapt to the installation in different scenarios, the present application provides a fixing device, which can automatically assemble during the pairing process with the external thread structure through its internal adaptive structure, so that the thread ring of the corresponding size inside can automatically fall, so that the external thread structure can be better paired with the sensor, and the effect of the sensor being able to adapt to different scenarios is achieved; 2. In order to solve the problem that the threaded connection structure in the prior art is prone to rust in a humid environment, the present application uses a fixing device with a unique internal thread ring structure to change the position of the thread ring so that the thread ring becomes a suction cup structure, and uses the humid environment to make the connection relationship between it and the detected object tighter, thereby realizing the use of the humid environment to strengthen the stability of the sensor; 3. Through the transmission device, when the external threaded structure enters the inner part of the outer sleeve, the air pressure is changed, so that the different threaded sleeves above are lowered, so that the internal threaded sleeve can be stably connected with the external structure, which is convenient to use and solves the problem of frequent replacement of threaded connection structures in the prior art, which makes the use process difficult; 4. Through the transmission device, the top drive is controlled so that it can be adjusted according to the size of the bottom thread structure during movement, so that the upper drive can push the thread ring of appropriate size, so that it can make corresponding adjustments while protecting the sensor, solving the problem of manual adjustment of the threaded connection relationship in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A front view of an embedded temperature sensor provided in this application; Figure 2 A schematic diagram of the auxiliary thread ring structure of an embedded temperature sensor provided in this application; Figure 3 A schematic diagram of the structure of separation of the sensor body and the auxiliary thread ring of an embedded temperature sensor provided in the present application; Figure 4 A bottom view of an embedded temperature sensor provided by the present application after the sensor body and the auxiliary thread ring are separated; Figure 5 A schematic diagram of the internal structure of an outer sleeve of an embedded temperature sensor provided in this application; Figure 6 A schematic diagram of the internal structure of a fixed shell of an embedded temperature sensor provided in this application; Figure 7 A schematic diagram of the internal structure of a special-shaped tube of an embedded temperature sensor provided in this application; Figure 8 A schematic diagram of the internal structure of a triangular block of an embedded temperature sensor provided in this application; Fig. 9 A schematic diagram of the structure of a threaded ring separation state of an embedded temperature sensor provided in the present application; Fig.10 A schematic diagram of the connection board structure of an embedded temperature sensor provided in this application.

[0019] Indicated in the figure: 1. Sensor body; 2. Threaded sleeve; 3. Auxiliary thread ring; 4. Sensor receiving rod; 5. Outer sleeve; 6. Fixed shell; 7. Fixing device; 701. Spring telescopic rod; 702. Threaded ring; 703. Threaded line; 704. Sealing pad; 705. U-shaped fixing plate; 706. Fixing block; 707. Special-shaped tube; 708. Telescopic tube; 709. Triangular block; 710. Oblique groove; 711. Concave groove; 712. Piston; 713. Connecting column; 8. Transmission device; 801. Return ring; 802. Connecting plate; 803. Groove; 804. Torsion spring; 805. Extension plate; 806. U-shaped block; 807. Bending rod; 8071. Turning rod; 808. Limiting sleeve; 809. Driving rod; 810. Fixing sleeve; 811. Return spring; 812. Through slot. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0021] As described in the background art, due to the corrosion and softening effect of the wet environment on the adhesive or the fixing parts, as well as improper design or installation of the fixing structure, the sensor may become loose or fall off.

[0022] In order to solve this technical problem, the present invention provides an embedded temperature sensor, which is used to adjust the connection between different external thread mechanisms and the sensor, and provides a spare auxiliary connection structure to avoid falling off.

[0023] Specifically, please refer to Figure 1-Figure 10 , an embedded temperature sensor specifically includes: The sensor body 1 and the threaded sleeve 2 fixedly connected to the upper part of the outer wall, the threaded sleeve 2 is threadedly connected with an auxiliary thread ring 3, the auxiliary thread ring 3 is composed of two upper and lower auxiliary thread rings 3 and two U-shaped side rods, the auxiliary thread ring 3 is threadedly connected with the threaded sleeve 2, and it is applied to the situation where the external threaded connection structure is consistent with the inner diameter of the outer sleeve 5, the sensor body 1 is connected with a sensor receiving rod 4, the outer ring of the sensor receiving rod 4 is provided with an outer sleeve 5, and both sides of the outer sleeve 5 are provided with a fixed shell 6, the interior of the fixed shell 6 is a hollow structure, and the interior of the outer sleeve 5 is provided with a fixed Device 7, a transmission device 8 is arranged inside the fixed shell 6, the fixing device 7 includes a plurality of spring telescopic rods 701 fixedly connected to the inner wall at the top of the outer sleeve 5, each spring telescopic rod 701 independently drives a threaded ring 702 fixedly connected thereto, a plurality of threaded rings 702 of different diameters are arranged at the end of the spring telescopic rod 701, the inner ring of the threaded ring 702 is provided with a thread line 703 which does not reach the top of the inner ring from bottom to top, each threaded ring 702 is sequentially sleeved from large to small and in close contact, and a sealing gasket 704 is arranged on the bottom outer wall of the outermost threaded ring 702.

[0024] The present invention provides an embedded temperature sensor, which uses threaded rings 702 stacked in sequence so that the sensor can switch freely by itself and produce a suction cup effect through the stacking property, so that it can provide additional connection capabilities.

[0025] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0028] Example 1, please refer to Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig. 9, an embedded temperature sensor, the fixing device 7 also includes a U-shaped fixing plate 705 connected to the inner wall of the fixing shell 6, a fixing block 706 is fixedly connected to the inner wall of the fixing shell 6, a special-shaped tube 707 is fixedly connected to the fixing block 706, the U-shaped fixing plate 705 is used to maintain the stability of the special-shaped tube 707, the special-shaped tube 707 is fixedly connected to the U-shaped fixing plate 705, the special-shaped tube 707 includes a return bend structure on one side of the U-shaped fixing plate 705, the return bend structure changes the flow direction of the airflow, so that the moving direction of the triangular block 709 is consistent with the moving direction of the piston 712, and a U-shaped structure on the other side of the U-shaped fixing plate 705, the U-shaped structure part of the special-shaped tube 707 is connected to the fixing block 706, providing space for the movement of the telescopic tube 708, and providing guidance for the flow of the airflow.

[0029] The air pressure obtained by squeezing the telescopic tube 708 by the triangular block 709 is transmitted to the piston 712 through the special-shaped tube 707, so that the piston 712 can determine the diameter of the external thread according to the pushing distance of the telescopic tube 708, that is, the external thread structure squeezes the triangular block 709.

[0030] The fixing device 7 also includes a telescopic tube 708 arranged on the fixing block 706, and a triangular block 709 is fixedly connected to the telescopic tube 708. An inclined groove 710 is provided on the top of the triangular block 709, and a concave groove 711 is provided on the triangular block 709. The inclined surface direction of the inclined groove 710 is opposite to the direction of the hypotenuse corresponding to the right-angled side of the triangular block 709. The inclined groove 710 above the triangular block 709 is used to squeeze the triangular block 709 and move the triangular block 709 to both sides after the threaded ring 702 moves downward.

[0031] Please refer to Figure 6 , Figure 7 and Figure 8 , an embedded temperature sensor, the fixing device 7 also includes a piston 712 arranged inside the special-shaped tube 707, and a connecting column 713 is fixedly connected to one side of the piston 712. The position of the connecting column 713 is the opening direction of the special-shaped tube 707. The piston 712 squeezes the circular ring 801 through the change of air pressure so that the circular ring 801 moves under the restriction of the special-shaped tube 707.

[0032] Embodiment 2 further optimizes an embedded temperature sensor provided in Embodiment 1. Specifically, Figure 6 , Figure 7 and Figure 8 As shown, the transmission device 8 includes a circular ring 801 connected to the connecting column 713, the circular ring 801 is sleeved on the special-shaped tube 707, the bottom of the circular ring 801 is connected to the connecting plate 802 through a fixed plate, the connecting plate 802 is provided with a groove 803, both sides of the groove 803 are connected to torsion springs 804, and the torsion springs 804 keep the U-shaped block 806 in a vertical state.

[0033] The cooperation between the return ring 801 and the special-shaped tube 707 ensures that the return ring 801 can ensure the structural stability of the special-shaped tube 707, and at the same time, the outside of the special-shaped tube 707 is protected by the return ring 801 to avoid collision damage. It should be added that since the return ring 801 is supported by the connecting plate 802 and the curved rod 807, the return ring 801 will not tilt on the special-shaped tube 707.

[0034] The transmission device 8 further includes an extension plate 805 connected between the two torsion springs 804 , and a U-shaped block 806 is fixedly connected to the extension plate 805 . The concave portion and the side lines on both sides of the U-shaped block 806 are arc edges.

[0035] The U-shaped block 806 with arc edges is provided so that it will not come into compression contact with the threaded ring 702 during the turning action.

[0036] The transmission device 8 also includes a bent rod 807 arranged in the concave groove 711, the end of the bent rod 807 is connected to a turning rod 8071, and a limiting sleeve 808 used in conjunction with the bent rod 807 is fixedly connected to the connecting plate 802. The end of the bent rod 807 away from the turning rod 8071 is a Z-shaped structure, and the turning rod 8071 is in contact with the U-shaped block 806.

[0037] By controlling the contact relationship between the turning rod 8071 and the U-shaped block 806, the U-shaped block 806 is tilted between the extrusion force of the torsion spring 804 and the turning rod 8071 and is arranged above the threaded ring 702. When the extrusion force of the turning rod 8071 disappears, the U-shaped block 806 flips over and contacts the two threaded rings 702.

[0038] Further, such as Figure 6 , Figure 7 , Figure 8 and Fig. 9 As shown, the transmission device 8 also includes a driving rod 809 slidably connected to the inside of the triangular block 709 , the driving rod 809 is fixedly connected to the curved rod 807 , and a fixing sleeve 810 is sleeved on the outer wall of the driving rod 809 located inside the triangular block 709 .

[0039] The transmission device 8 also includes a return spring 811 fixedly connected to the fixed sleeve 810, and one end of the return spring 811 away from the fixed sleeve 810 is fixedly connected to the inner wall of the triangular block 709. The return spring 811 is sleeved on the driving rod 809, and one end of the driving rod 809 away from the curved rod 807 extends to the outside of the triangular block 709.

[0040] When the external thread structure squeezes the triangular block 709 to a certain position, the external thread structure will eventually squeeze the triangular block 709 completely to both sides and come into contact with and squeeze the driving rod 809 disposed outside the triangular block 709, causing the driving rod 809 to be displaced.

[0041] The transmission device 8 further includes a through slot 812 provided on the U-shaped fixing plate 705 and used in conjunction with the bent rod 807 . The bent rod 807 and the through slot 812 are not on the same plane as the special-shaped tube 707 .

[0042] The use process of an embedded temperature sensor provided by the present invention is as follows: 1. When the sensor needs to be set on the external thread structure, it needs to be installed according to the size of the corresponding thread structure diameter. At this time, if the external thread structure is consistent with the inner diameter of the outer sleeve 5, the auxiliary thread ring 3 is required for auxiliary installation. When the external thread structure is smaller than the outer sleeve 5, it is only necessary to separate the auxiliary thread ring 3 from the thread sleeve 2, and at the same time, align the opening direction of the outer sleeve 5 with the external thread protrusion and gradually approach it. When the external thread protrusion contacts the internal triangular block 709, the downward beveled part of the triangular block 709 contacts and squeezes the external thread protrusion, so that the triangular block 709 gradually moves to both sides; 2. The triangular block 709 will push the telescopic tube 708 to shorten it. At this time, the volume of the telescopic tube 708 changes, resulting in a decrease in the connecting space between the telescopic tube 708 and the special-shaped tube 707, thereby changing the air pressure in the space to increase and push the piston 712 to move in the direction of the return ring 801. The return ring 801 is pushed. At the same time, since the connecting plate 802 is fixed to the return ring 801, the connecting plate 802 and the upper parts thereof move in the direction of the return ring 801 at the same time, and the curved rod 807 set in the triangular block 709 will also move in the direction of the return ring 801. At this time, the moving distance of the triangular block 709 is consistent with the moving distance of the U-shaped block 806 on the connecting plate 802, so that the triangular block 709 can judge the diameter of the external threaded protrusion by changing the air pressure; 3. When the external threaded protrusion completely squeezes the triangular block 709, it will be set between the two triangular blocks 709, that is, the diameter of the external threaded protrusion is the distance between the two triangular blocks 709. At this time, the external threaded protrusion squeezes the part of the driving rod 809 located outside the triangular block 709, so that the driving rod 809 is squeezed and moves a distance in the concave groove 711. The driving rod 809 pushes the bent rod 807 to move in the same direction. The through groove 812 ensures that the raised part of the bent rod 807 will not be restricted by the U-shaped fixing plate 705. 807 moves and the return spring 811 is extended, so that the contact effect between the turning rod 8071 and the U-shaped block 806 disappears, causing the U-shaped block 806 to flip around the torsion spring 804 as the axis under the action of the torsion spring 804. At this time, the U-shaped block 806 pushes down the two threaded rings 702 below it, so that the threaded ring 702 of the inner circle serves as a limiting ring, and the threaded ring 702 of the outer circle serves as a connecting ring to connect with the external threaded protrusion, that is, a circular ring structure is formed between the two threaded rings 702 and the threaded ring 702 that has not been pushed down, which is convenient for threaded connection. Fig. 9 It can be observed that the structure can be stably installed while isolating the sensor receiving rod 4 at the bottom from the components above, preventing water vapor from entering the upper part and causing corrosion of the sensor; 4. When the threaded connection part can no longer provide the corresponding connection force and has been damaged, the spring telescopic rod 701 works so that the threaded ring 702 is pushed to the bottom. The outermost threaded ring 702 has a sealing gasket 704, and the innermost threaded ring 702 is tightly fitted with the sensor receiving rod 4. The thread line 703 of each threaded ring 702 is not opened to the top of the threaded ring 702. On the basis of the tight fit between each threaded ring 702, it is pushed to the bottom. When the sealing gasket 704 contacts the plane, the spring telescopic rod 701 is lifted one by one, so that the threaded ring 702 is stacked in a pyramid shape, so that its internal space is increased to produce a suction cup effect.

[0043] 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.

[0044] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the specification and drawings of the present invention, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present invention.

Claims

1. An embedded temperature sensor, characterized in that: The sensor comprises a sensor body (1) and a threaded sleeve (2) fixedly connected to the upper part of the outer wall, the threaded sleeve (2) being threadedly connected to an auxiliary threaded ring (3), the sensor body (1) being connected to a sensor receiving rod (4), the outer ring of the sensor receiving rod (4) being provided with an outer sleeve (5), both sides of the outer sleeve (5) being provided with a fixing shell (6), the interior of the outer sleeve (5) being provided with a fixing device (7), and the interior of the fixing shell (6) being provided with a transmission device (8); The fixing device (7) comprises a plurality of spring telescopic rods (701) fixedly connected to the inner wall at the top of the outer sleeve (5); a plurality of threaded rings (702) of different diameters are arranged at the ends of the spring telescopic rods (701); the inner ring of the threaded ring (702) is provided with a thread line (703) that does not reach the top of the inner ring from bottom to top; and a sealing gasket (704) is arranged on the outer wall at the bottom of the outermost threaded ring (702).

2. The embedded temperature sensor according to claim 1, characterized in that: The fixing device (7) further comprises a U-shaped fixing plate (705) connected to the inner wall of the fixing shell (6); a fixing block (706) is fixedly connected to the inner wall of the fixing shell (6); a special-shaped tube (707) is fixedly connected to the fixing block (706); and the special-shaped tube (707) is fixedly connected to the U-shaped fixing plate (705).

3. The embedded temperature sensor according to claim 2, characterized in that: The fixing device (7) further comprises a telescopic tube (708) arranged on the fixing block (706), the telescopic tube (708) being fixedly connected to a triangular block (709), an inclined groove (710) being provided on the top of the triangular block (709), and a concave groove (711) being provided on the triangular block (709).

4. The embedded temperature sensor according to claim 3, characterized in that: The fixing device (7) further comprises a piston (712) arranged inside the special-shaped tube (707), one side of the piston (712) being fixedly connected to a connecting column (713), and the connecting column (713) is located in the opening direction of the special-shaped tube (707).

5. The embedded temperature sensor according to claim 4, characterized in that: The transmission device (8) comprises a circular ring (801) connected to a connecting column (713), the circular ring (801) being sleeved on a special-shaped tube (707), the bottom of the circular ring (801) being connected to a connecting plate (802) via a fixing plate, the connecting plate (802) being provided with a groove (803), and both sides of the groove (803) being connected to torsion springs (804).

6. The embedded temperature sensor according to claim 5, characterized in that: The transmission device (8) further comprises an extension plate (805) connected between the two torsion springs (804), and a U-shaped block (806) is fixedly connected to the extension plate (805).

7. The embedded temperature sensor according to claim 6, characterized in that: The transmission device (8) further comprises a bent rod (807) disposed in the concave groove (711), the end of the bent rod (807) being connected to a turning rod (8071), a limiting sleeve (808) for use with the bent rod (807) being fixedly connected to the connecting plate (802), the end of the bent rod (807) away from the turning rod (8071) being a Z-shaped structure, and the turning rod (8071) being in contact with the U-shaped block (806).

8. The embedded temperature sensor according to claim 7, characterized in that: The transmission device (8) further comprises a driving rod (809) slidably connected to the interior of the triangular block (709), the driving rod (809) being fixedly connected to the curved rod (807), and a fixing sleeve (810) being sleeved on the outer wall of the driving rod (809) located inside the triangular block (709).

9. The embedded temperature sensor according to claim 8, characterized in that: The transmission device (8) further comprises a return spring (811) fixedly connected to the fixed sleeve (810), wherein one end of the return spring (811) away from the fixed sleeve (810) is fixedly connected to the inner wall of the triangular block (709). The return spring (811) is sleeved on the driving rod (809), and one end of the driving rod (809) away from the bent rod (807) extends to the outside of the triangular block (709).

10. The embedded temperature sensor according to claim 9, characterized in that: The transmission device (8) further comprises a through slot (812) provided on the U-shaped fixing plate (705) and used in conjunction with the bent rod (807); the bent rod (807) and the through slot (812) are not on the same plane as the special-shaped tube (707).

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