CN216386033U - Temperature measuring device and temperature measuring structure - Google Patents
Temperature measuring device and temperature measuring structure Download PDFInfo
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- CN216386033U CN216386033U CN202123026125.6U CN202123026125U CN216386033U CN 216386033 U CN216386033 U CN 216386033U CN 202123026125 U CN202123026125 U CN 202123026125U CN 216386033 U CN216386033 U CN 216386033U
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Abstract
The utility model belongs to the field of measuring equipment, and provides a temperature measuring device and a temperature measuring structure. Temperature measurement structure, including foretell temperature measuring device and the body that awaits measuring, the body that awaits measuring is including first wall and the second wall of range upon range of setting, and first wall is passed to the blind end of body to with the contact of second wall, sealing connection between body and the first wall, the elastic component of body is pressed the blind end on the second wall. The utility model can lead the closed end to be in close contact with the second wall, ensure the temperature measurement effect of the closed end and avoid damaging the protective atmosphere when the temperature measurement element is replaced. And simultaneously prevent the pipe body from being damaged and broken due to the extrusion of the second wall.
Description
Technical Field
The utility model belongs to the field of measuring equipment, and particularly relates to a temperature measuring device and a temperature measuring structure.
Background
In order to ensure the sealing performance, when materials needing good sealing protection, such as liquid metal sodium, are used as a transmission medium, a double-layer pipeline is usually adopted as a transmission pipeline. A double-layer pipe comprises an inner pipe and an outer pipe, between which a protective atmosphere is usually filled. In order to detect the temperature of the transmission medium in the inner tube, a temperature detection device is usually disposed between the inner tube and the outer tube, and the temperature of the transmission medium in the inner tube is detected by detecting the temperature of the outer wall of the inner tube. The temperature detection device needs to penetrate out of the outer tube so as to read the detection signal. Because adopt different materials between interior outer pipeline, the pipeline coefficient of expansion is different, perhaps, the same material is adopted to interior outer pipeline, but temperature difference between interior outer pipeline leads to producing different displacement volume between interior outer pipeline. When the distance between the inner pipe and the outer pipe is increased, a gap appears between the temperature detection device and the outer wall of the inner pipe, and the measurement effect is influenced. When the distance between the inner pipe and the outer pipe is reduced, the temperature measuring device can be extruded, and the temperature measuring device and the transmission pipeline are damaged. After a temperature measuring element in the temperature measuring device is damaged, the temperature measuring device needs to be integrally replaced, the direct replacement of the temperature measuring device can cause leakage of protective atmosphere between an inner pipeline and an outer pipeline, the protective atmosphere needs to be discharged in advance, and the temperature measuring device is difficult to maintain and replace.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a temperature measuring device and a temperature measuring structure, which are used to solve the problems of poor measuring effect, easy damage, difficult maintenance and replacement of the temperature detecting device in the prior art.
In order to achieve the above and other related objects, the present invention provides a temperature measuring device for detecting a temperature of a to-be-detected object, the to-be-detected object including a first wall and a second wall which are stacked, including:
the protection tube component comprises a tube body,
the temperature measuring component comprises a temperature measuring element,
the temperature measuring element is detachably arranged in the tube body and is in contact with the inner side of the closed end, the closed end is used for penetrating through the first wall and is in contact with the second wall, the tube body further comprises a base and an elastic part, the base is used for being fixedly and hermetically connected with the first wall, and the elastic part is arranged between the closed end and the base and is used for pressing the closed end on the second wall.
Optionally, the temperature sensing assembly includes a hold down spring that presses the temperature sensing element against the inside of the closed end.
Optionally, the elastic portion is an elastic corrugated pipe, and the elastic corrugated pipe is arranged along the extending direction of the pipe body.
Optionally, one end of the tube body, which is far away from the closed end, is a mounting end, a mounting opening for mounting the temperature measuring component is arranged on the mounting end, and the temperature measuring element is arranged in the tube body through the mounting opening.
Optionally, the temperature measuring assembly further comprises an installation fixing member, the installation fixing member is detachably connected to the tube body, the installation fixing member restrains the position of the compression spring, and the temperature measuring element is compressed on the inner side of the closed end of the tube body through the compression spring.
Optionally, a retaining ring is arranged on the temperature measuring element, one end of the compression spring acts on the mounting fixing member, the other end of the compression spring acts on the retaining ring, and the mounting fixing member compresses the temperature measuring element in the pipe body through the spring and the retaining ring.
Optionally, the temperature measuring element is a sheathed thermocouple.
Optionally, one end of the temperature measuring element close to the closed end of the tube body is a hot end, the other end of the temperature measuring element is a cold end, a cold end protective cap is arranged on the cold end, and an insulating material is filled between the cold end protective cap and the temperature measuring element.
Optionally, the protection tube assembly further includes a mounting seat for sealing connection with the first wall, the mounting seat is tubular, the tube body is detachably disposed in the mounting seat in a penetrating manner and is in sealing connection with the mounting seat, and the tube body passes through the mounting seat and is in sealing connection with the first wall.
Optionally, the protection tube assembly further comprises a connection threaded sleeve, the connection threaded sleeve is rotatably sleeved on the base of the tube body, a thread matched with the connection threaded sleeve is arranged on the mounting seat, and the tube body is connected to the mounting seat through the connection threaded sleeve in a sealing mode.
Optionally, a sealing gasket is disposed between the mounting seat and the tube, and the mounting seat and the tube are sealed by the sealing gasket.
Optionally, still include the wiring subassembly, be provided with flexible chamber in the wiring subassembly, the wiring subassembly cover is established the body is kept away from one of blind end is served, the body can flexible intracavity concertina movement, the wiring subassembly includes the cutting ferrule nut, the restriction of cutting ferrule nut the wiring subassembly with relative position between the body.
The utility model also provides a temperature measuring structure, which comprises the temperature measuring device and the body to be measured, wherein the body to be measured comprises a first wall and a second wall which are arranged in a stacked mode, the closed end of the pipe body penetrates through the first wall and is in contact with the second wall, the pipe body is connected with the first wall in a sealing mode, and the elastic part of the pipe body presses the closed end on the second wall. Optionally, the elastic portion is an elastic corrugated tube, and the elastic corrugated tube is arranged along a connecting line between the closed end and the mounting end.
As described above, the temperature measuring device and the temperature measuring structure according to the present invention have the following advantageous effects: because the closed end of the tube body is in a closed state and the base is hermetically connected with the first wall, when a medium such as a protective atmosphere is filled between the first wall and the second wall, the protective atmosphere cannot leak from the temperature measuring device. Moreover, because the temperature measuring element is detachably arranged in the tube body, the temperature measuring element can be replaced after being detached from the tube body when the temperature measuring element is damaged. Because the pipe body is sealed with the first wall, and one end of the pipe body extending into the first wall is sealed as a closed end, when the temperature measuring element is disassembled and replaced, the protective atmosphere between the first wall and the second wall can not leak, the protective atmosphere does not need to be discharged in advance, and the temperature measuring element is replaced simply and conveniently.
Meanwhile, as the tube body comprises the elastic part, when the tube body is fixedly connected to the first wall, the elastic part is compressed to a part, so that the closed end is pressed on the second wall. When the relative distance between the first wall and the second wall is increased due to temperature change and the like, the elastic part can correspondingly stretch, so that the closed end is still in close contact with the second wall, and the closed end is ensured to have a good temperature measuring effect. When the relative distance between the first wall and the second wall is reduced, the elastic part can contract correspondingly, and the pipe body is prevented from being damaged and broken due to extrusion of the second wall.
Drawings
FIG. 1 is a schematic structural diagram of a temperature measurement structure according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a temperature measuring device according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a wiring assembly in an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a temperature measurement assembly according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of a protective tube assembly according to an embodiment of the present invention;
FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5;
FIG. 7 is a schematic structural diagram of an assembled temperature measurement component and protection tube component according to an embodiment of the present invention.
Description of reference numerals: the temperature-measuring device comprises a mounting base 2, an outer pipe 3, an inner pipe 4, a wiring assembly 5, a protection pipe assembly 7, an insulating layer 8, a cable locking joint 51, a junction box assembly 52, a locking nut 53, an extension section 54, a clamping sleeve nut 55, a compensating lead 61, a mounting fixture 62, a cold end protective cap 63, a compression spring 64, a retainer ring 65, a temperature-measuring element 66, a mounting end 71, a connecting screw sleeve 72, a sealing gasket 73, an elastic corrugated pipe 74 and a closed end 75.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
Referring to fig. 1 to 7, the present embodiment provides a temperature measuring device for detecting a temperature of an object to be detected, where the object to be detected includes a first wall and a second wall that are stacked. As shown in fig. 2, the temperature measuring device includes a protection tube assembly 7 and a temperature measuring assembly, the protection tube assembly 7 includes a tube body, one end of the tube body is sealed to be a closed end 75, and the closed end 75 can penetrate through the first wall and contact with the second wall. As shown in fig. 7 and 4, the temperature measuring element 66 is provided in the tube and is in contact with the inside of the closed end 75, and the temperature measuring element 66 can measure the temperature of the second wall through the closed end 75.
The tube body further comprises a base portion and an elastic portion, the base portion can be fixedly and hermetically connected to the first wall, the elastic portion is arranged between the closed end 75 and the base portion, the closed end 75 can be pressed on the second wall, good contact between the closed end 75 and the second wall is achieved, and the temperature measuring effect is guaranteed. In this embodiment, the elastic portion is an elastic bellows 74, and the elastic bellows 74 is disposed along the extending direction of the tube body. The elastic corrugated pipe 74 is a hollow sealed tubular structure, and does not need to additionally process a hole for the temperature measuring element 66 to pass through, so that the production process is simple and the manufacturing is easy.
Since the closed end 75 of the tubular body is closed and the base portion is sealingly connected to the first wall, the protective atmosphere will not leak from the temperature measuring device when a medium, such as a protective atmosphere, is filled between the first wall and the second wall. Moreover, because the temperature measuring element 66 is detachably disposed in the tube body, the temperature measuring element 66 can be replaced after being detached from the tube body when the temperature measuring element 66 is damaged. Because the pipe body is sealed with the first wall, and one end of the pipe body extending into the first wall is sealed as the closed end 75, when the temperature measuring element 66 is disassembled and replaced, the protective atmosphere between the first wall and the second wall can not leak, the protective atmosphere does not need to be discharged in advance, and the replacement of the temperature measuring element 66 is simple and convenient.
Meanwhile, since the tube body includes the elastic portion, when fixedly attached to the first wall, the elastic portion is compressed by a portion so that the closed end 75 is pressed against the second wall. When the relative distance between the first wall and the second wall is increased due to temperature changes and the like, the elastic part can correspondingly stretch, so that the closed end 75 is still in close contact with the second wall, and the closed end 75 is ensured to have a good temperature measuring effect. When the relative distance between the first wall and the second wall is reduced, the elastic part can contract correspondingly, and the pipe body is prevented from being damaged and broken due to extrusion of the second wall.
In this embodiment, the temperature measuring assembly further comprises a compression spring 64, the compression spring 64 presses the temperature measuring element 66 on the inner side of the closed end, so that the temperature measuring element 66 and the closed end 75 are always in good contact, the detection effect of the temperature measuring element 66 is ensured, the temperature measuring element 66 can also move correspondingly when the closed end 75 is pressed, and the temperature measuring element 66 is prevented from being damaged due to pressing.
Specifically, the temperature measuring assembly further comprises a mounting fixing member 62, the mounting fixing member 62 is detachably connected to the tube body, the mounting fixing member 62 restrains the position of the compression spring 64, and the temperature measuring element 66 is compressed on the inner side of the closed end 75 of the tube body through the compression spring 64. The temperature measuring element 66 is provided with a retainer ring 65, one end of the compression spring 64 acts on the mounting fixing member 62, the other end of the compression spring 64 acts on the retainer ring 65, and the mounting fixing member 62 compresses the temperature measuring element 66 in the pipe body through the spring and the retainer ring 65.
In this embodiment, the end of the tube body away from the closed end 75 is a mounting end 71, the mounting end 71 is provided with a mounting opening for mounting the temperature measuring component, and the temperature measuring element 66 is disposed in the tube body through the mounting opening. The mounting and fixing member 62 is a mounting bolt, a thread matched with the mounting and fixing member 62 is arranged on the inner wall of the mounting opening, and the mounting and fixing member 62 can be connected to the mounting opening of the pipe body through the thread. Meanwhile, the mounting fixture 62 can also adjust the compression amount of the compression spring 64 through threads, so as to ensure that the temperature measuring element 66 is compressed on the inner side of the closed end 75.
In this embodiment, the temperature measuring element 66 is an armored thermocouple, and one end of the temperature measuring element 66 close to the closed end 75 of the tube body is a hot end, and the other end is a cold end. The cold end is connected with a compensation lead 61, the cold end upper cover is provided with a cold end protective cap 63, and insulating materials such as epoxy resin are filled between the cold end protective cap 63 and the temperature measuring element 66. The insulating material insulates the temperature sensing element 66 from surrounding components and ensures safety. Meanwhile, the fixing mount is provided with an installation groove for installing the cold end protection cap 63, and the cold end protection cap 63 is installed on the fixing mount through the installation groove. Planes are respectively added on two sides of the cold end protective cap 63, and the shape of the groove is adapted to the shape of the section of the cold end protective cap 63. The plane on the cold end protective cap 63 is matched with the mounting groove on the mounting and fixing member 62, so that the cold end protective cap 63 can be prevented from rotating in the circumferential direction, the position of the compensation lead 61 is fixed, and the effect of protecting the compensation lead 61 is achieved. At the same time, the flat surface on the cold end protective cap 63 also serves as a guide when the cold end protective cap 63 is mounted to the fixed mounting.
The protection tube assembly 7 further comprises a mounting seat 2, the mounting seat 2 being adapted to be sealingly connected to the first wall by welding, screwing or the like. The mounting seat 2 is a tubular shape, the pipe body can be detachably arranged in the mounting seat 2 in a penetrating mode and is in sealing connection with the mounting seat 2, and the pipe body is in sealing connection with the first wall through the mounting seat 2.
As shown in fig. 5, the protection tube assembly 7 in this embodiment further includes a connection screw sleeve 72, the connection screw sleeve 72 is rotatably sleeved on the base portion of the tube body, a thread matching with the connection screw sleeve 72 is provided on the mounting base 2, and the tube body can be hermetically connected to the mounting base 2 through the connection screw sleeve 72. Specifically, a sealing gasket 73 is arranged between the mounting base 2 and the tube body, and the mounting base 2 and the tube body are sealed through the sealing gasket 73.
As shown in fig. 3, the temperature measuring device further includes a wiring assembly 5, a telescopic cavity is provided in the wiring assembly 5, and the wiring assembly 5 is composed of a cable locking connector 51, a junction box assembly 52, a locking nut 53 and an extension section 54. The terminal block assembly 52 is comprised of a terminal block body, a terminal block cover, a terminal block assembly, and the like. The wiring box body is connected with the wiring box cover by a chain, and the wiring board component comprises a ceramic wiring board, wiring terminals and the like.
The telescopic cavity is arranged in the extension section 54, and the wiring component 5 is sleeved on one end of the pipe body, which is provided with the temperature measuring component. The body of protection tube subassembly 7 can be in flexible intracavity concertina movement.
The wiring assembly 5 further comprises a ferrule nut 55, the ferrule nut 55 constraining the relative position between the wiring assembly 5 and the protective tube assembly 7. The body can be in flexible intracavity concertina movement, therefore wiring subassembly 55 can be for body adjusting position to can adapt to on-the-spot installation space.
When the ferrule nut 55 and the ferrule are sleeved on the guide rod and adjusted to a proper position, the nut body is screwed to enable the movable clamp to tightly hold the guide rod. The fastening screw is screwed to enable the limiting plane to be matched with the fastening screw, so that the wiring assembly 5 can be prevented from rotating around the axis of the pipe body, and the wiring assembly 5 is restrained relative to the limit telescopic position of the pipe body.
As shown in fig. 1, the embodiment further provides a temperature measuring structure, which includes the temperature measuring device and the body to be measured, the body to be measured includes a first wall and a second wall that are stacked, the closed end 75 of the tube body penetrates through the first wall and contacts with the second wall, the tube body is hermetically connected with the first wall, and the closed end 75 is pressed on the second wall by the elastic element of the tube body. Alternatively, the elastic member is an elastic bellows 74, and the elastic bellows 74 is disposed along a line connecting the closed end 75 and the mounting end 71.
In this embodiment, the body of awaiting measuring is double-deck pipeline, and first wall is double-deck pipeline's outer tube 3, offers the inspection hole that is used for protection tube subassembly 7 to pass through on the outer tube 3, and the second wall is double-deck pipeline's inner tube 4, and the flow has liquid metal sodium in the inner tube 4. And the outer side of the outer pipe 3 is provided with a heat preservation layer 8, so that the heat loss is reduced.
When the temperature measurement assembly is actually assembled, the sequence is as follows:
1. welding the compensating lead 61 with the temperature measuring element 66 after distinguishing the positive electrode and the negative electrode;
2. the cold end protective cap 63 is fixed on the temperature measuring element 66 in a fixed-length compression joint mode, and sealing and insulating materials are filled in the cold end protective cap 63;
3. the temperature measuring element 66, the mounting fixture 62, the hold-down spring 64 and the retainer ring 65 are assembled in sequence, wherein the retainer ring 65 can be fixed on the temperature measuring element 66 by laser welding or extrusion deformation.
During actual use, the mounting seat 2 and the outer pipe 3 are welded, then a connection interface of the mounting seat 2 is sealed by the plug, a leak detection test and a pressure test between an inner layer pipeline and an outer layer pipeline are carried out, and the temperature measuring instrument is installed and fixed on the mounting seat 2 in a threaded mode after the test is qualified.
When the temperature measuring element 66 needs to be replaced, the wiring component 5 can be detached from the guide rod, and then the mounting fixing component 62 of the protection tube component 7 is detached, so that the temperature measuring element 66 can be taken out of the tube body. At this time, the outer tube 3 is still sealed with the outer tube 3, so that leakage of dangerous media such as liquid sodium metal can be effectively prevented during replacement of the temperature measuring element 66, and the operation is simple.
In summary, in the embodiment, the protection tube assembly 7 and the temperature measuring assembly are axially deformable to adapt to the deformation of the double-layer tube. The temperature sensing element 66 may be selected from among various graduated sheathed thermocouples and platinum thermistors. The elastic protection tube can realize axial compression movement and ensure the structural integrity under the pressure of 2 MPa.
The compression spring can realize the corresponding axial compression movement of the temperature measuring element 66 and the protection tube component 7, and ensures that the temperature measuring element 66 is tightly attached to the bottom of the closed end 75 all the time. The temperature measurement component can be replaced at any time after reaching the verification period or failing due to failure, and the replacement steps are simple. Under the condition that the spacing displacement of the double-layer pipeline is different, the protective pipe component 77 can ensure that the closed end 75 is tightly attached to the wall surface of the inner-layer pipeline, so that the surface temperature of the inner-layer pipeline is accurately measured.
This embodiment is applicable to operating modes such as double-deck pipeline or other double-deck containers, and under the condition of satisfying the temperature measurement purpose, its installation, change are simple. Because the temperature measurement component can be dismantled and set up on the body, when the temperature measurement component became invalid or damaged, can dismantle the temperature measurement component, need not to dismantle the body, can realize realizing the change of temperature element 66 under the circumstances of not destroying protective atmosphere, avoid the leakage, the loss of dangerous transmission medium such as liquid metal sodium.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a temperature measuring device for detect the temperature of the body of awaiting measuring, the body of awaiting measuring is including first wall and the second wall of range upon range of setting, its characterized in that includes:
the protection tube component comprises a tube body,
the temperature measuring component comprises a temperature measuring element,
wherein, one end of the tube body is a closed end, the temperature measuring element is detachably arranged in the tube body and is contacted with the inner side of the closed end, the closed end is used for penetrating through the first wall and is contacted with the second wall,
the tube body further comprises a base portion and an elastic portion, the base portion is used for being fixedly connected with the first wall in a sealing mode, and the elastic portion is arranged between the closed end and the base portion and used for pressing the closed end on the second wall.
2. The temperature measuring device according to claim 1, characterized in that: the temperature measuring component comprises a compression spring, and the compression spring presses the temperature measuring element on the inner side of the closed end.
3. The temperature measuring device according to claim 1, characterized in that: the elastic part is an elastic corrugated pipe, and the elastic corrugated pipe is arranged along the extending direction of the pipe body.
4. The temperature measuring device according to claim 1, characterized in that: the temperature measuring device is characterized in that one end of the pipe body, far away from the closed end, is an installation end, an installation opening used for installing the temperature measuring component is arranged on the installation end, and the temperature measuring element is arranged in the pipe body through the installation opening.
5. The temperature measuring device according to claim 2, characterized in that: the temperature measuring component further comprises an installation fixing piece, the installation fixing piece is detachably connected to the pipe body, the installation fixing piece restrains the position of the compression spring, and the temperature measuring element is compressed on the inner side of the closed end of the pipe body through the compression spring.
6. The temperature measuring device according to claim 1, characterized in that: the temperature measuring element is characterized in that one end, close to the closed end of the tube body, of the temperature measuring element is a hot end, the other end of the temperature measuring element is a cold end, a cold end protective cap is arranged on the cold end, and an insulating material is filled between the cold end protective cap and the temperature measuring element.
7. The temperature measuring device according to claim 1, characterized in that: the protection tube subassembly still including be used for with first wall sealing connection's mount pad, the mount pad is the tubulose, the body can be dismantled wear to establish in the mount pad and with sealing connection between the mount pad, the body passes through the mount pad with sealing connection between the first wall.
8. The temperature measuring device according to claim 7, wherein: the protection tube assembly further comprises a connecting threaded sleeve, the connecting threaded sleeve is rotatably sleeved on the base of the tube body, threads matched with the connecting threaded sleeve are arranged on the mounting seat, and the tube body is connected to the mounting seat in a sealing mode through the connecting threaded sleeve.
9. The temperature measuring device according to any one of claims 1 to 8, characterized in that: the wire connecting component is internally provided with a telescopic cavity and is sleeved on one end of the tube body far away from the closed end;
the body can be in flexible intracavity concertina movement, the wiring subassembly includes the cutting ferrule nut, the cutting ferrule nut restraint the wiring subassembly with the relative position between the body.
10. A temperature measurement structure characterized by: the temperature measuring device and the device under test as claimed in any one of claims 1 to 9, wherein the device under test includes a first wall and a second wall stacked together, a closed end of the tube penetrates through the first wall and contacts with the second wall, the tube is hermetically connected with the first wall, and the closed end is pressed against the second wall by an elastic portion of the tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123026125.6U CN216386033U (en) | 2021-12-03 | 2021-12-03 | Temperature measuring device and temperature measuring structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123026125.6U CN216386033U (en) | 2021-12-03 | 2021-12-03 | Temperature measuring device and temperature measuring structure |
Publications (1)
| Publication Number | Publication Date |
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| CN216386033U true CN216386033U (en) | 2022-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123026125.6U Active CN216386033U (en) | 2021-12-03 | 2021-12-03 | Temperature measuring device and temperature measuring structure |
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| CN (1) | CN216386033U (en) |
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2021
- 2021-12-03 CN CN202123026125.6U patent/CN216386033U/en active Active
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