High precision temperature sensor resistant to industrial corrosion
By installing a protective sleeve and elastic ring structure at the sensor end, the problem of corrosive substances adhering to the detection end of industrial temperature sensors is solved, enabling high-precision measurement and convenient cleaning, and improving the corrosion resistance and service life of the sensor.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN GUOYIXING TECH CO LTD
- Filing Date
- 2025-09-05
- Publication Date
- 2026-07-14
AI Technical Summary
Existing industrial temperature sensors are prone to having corrosive substances adhering to their sensing ends during use, which affects measurement accuracy and is difficult to clean effectively.
A protective sleeve is installed at the end of the sensor, with an elastic ring and a fastening sleeve on the inside. The elastic ring is pressed by sliding the fastening sleeve with a conical structure. Combined with the threaded connection and gear structure, it is convenient to clean the attached impurities.
This design protects the sensor, ensures measurement accuracy, simplifies the impurity cleaning process, and improves the sensor's lifespan and measurement accuracy.
Smart Images

Figure CN224499710U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a high-precision temperature sensor, specifically a high-precision temperature sensor resistant to industrial corrosion, and belongs to the field of temperature sensor technology. Background Technology
[0002] A temperature sensor is a sensor that can sense temperature and convert it into a usable output signal. Temperature sensors used in industrial production typically integrate microprocessor technology with traditional sensors, possessing multi-point detection, signal processing, and active information processing capabilities, and are widely used in industrial production, food processing, and other fields.
[0003] However, existing industrial temperature sensors require the end to be inserted into the medium being measured, which may cause corrosive substances to adhere to the sensor's sensing end. If not cleaned in time, this can damage the sensor's sensing end and affect the sensor's measurement accuracy. Utility Model Content
[0004] The purpose of this invention is to provide a high-precision temperature sensor resistant to industrial corrosion in order to solve the above-mentioned problems. By setting a protective sleeve at the end of the temperature sensor, the detection end of the temperature sensor can be protected. At the same time, in order to facilitate the cleaning of contaminated impurities, the inner elastic ring is tightened by the fastening sleeve, so that the elastic ring is in full contact with the surface of the sensor detection end, and then the cleaning can be completed by sliding the protective sleeve.
[0005] This utility model achieves the above-mentioned objectives through the following technical solution: a high-precision temperature sensor resistant to industrial corrosion, comprising a sensor body, a protective structure on the sensor body, the protective structure including a mounting screw tube, a protective sleeve threadedly connected to the mounting screw tube, an elastic ring on the inner side of the protective sleeve, a fastening sleeve slidably connected to the inner side of the protective sleeve, the end of the fastening sleeve having a conical structure, the elastic ring abutting against the conical surface at the end of the fastening sleeve, and an adjustment structure on the side of the sensor body.
[0006] Preferably, the protective sleeve has limiting grooves on both sides, and the two sides of the fastening sleeve are slidably connected to the protective sleeve through the limiting grooves.
[0007] Preferably, the protective sleeve has a threaded sleeve threaded to its side, and the end of the threaded sleeve abuts against the side of the fastening sleeve.
[0008] Preferably, the elastic ring abuts against the sensor body, and the inner diameter of the protective sleeve is larger than the diameter of the end of the sensor body.
[0009] Preferably, the adjustment structure includes a gear sleeve, the mounting screw tube is slidably connected to the sensor body, the gear sleeve is fixedly connected to the mounting screw tube, the sensor body is slidably connected to a mounting base, and the gear sleeve is rotatably connected to the inner side of the mounting base.
[0010] Preferably, a transmission gear is engaged on the side of the gear sleeve, the transmission gear is rotatably connected to the mounting base, and a bevel gear is fixedly connected to the top side of the transmission gear.
[0011] Preferably, a control rod is rotatably connected to the end of the mounting base, and the end of the control rod meshes with a bevel gear.
[0012] Preferably, an adjusting screw is rotatably connected to the top side of the mounting base, and a connecting block is fixedly connected to the side of the sensor body, with the adjusting screw passing through the connecting block.
[0013] Preferably, a threaded screw block is rotatably connected to the middle of the connecting block, and the adjusting screw is threadedly connected to the threaded screw block.
[0014] The beneficial effects of this utility model are as follows: A protective sleeve is provided at the detection end of the sensor body, which can protect the temperature sensor from drops and other effects. After the temperature sensor completes the temperature measurement, the end of the sensor may be contaminated with some corrosive impurities. At this time, the user can slide the fastening sleeve inside the protective sleeve. The inner side of the end of the fastening sleeve has a conical structure. As the fastening sleeve slides, its inner conical structure will apply pressure to the elastic ring set on the top side, making the contact force between the inner side of the elastic ring and the sensor body greater. At this time, the user can slide the protective sleeve to remove the impurities attached to the detection end of the sensor body through the tightly contacting elastic ring, ensuring the normal use of the sensor body. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the connection structure between the sensor body and the mounting block of this utility model;
[0017] Figure 3 for Figure 2 The diagram shown is an enlarged view of the structure of part A.
[0018] Figure 4 This is a schematic diagram of the connection structure between the mounting base and the control rod of this utility model.
[0019] In the diagram: 1. Sensor body; 2. Protective structure; 201. Protective sleeve; 202. Threaded sleeve; 203. Mounting screw; 204. Fastening sleeve; 205. Limiting groove; 206. Elastic ring; 3. Adjustment structure; 301. Mounting base; 302. Control rod; 303. Adjusting screw; 304. Connecting block; 305. Gear sleeve; 306. Transmission gear; 307. Bevel gear; 308. Threaded screw block. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figures 1-4 As shown, a high-precision temperature sensor resistant to industrial corrosion includes a sensor body 1. The sensor body 1 is provided with a protective structure 2. The protective structure 2 includes a mounting screw tube 203. The mounting screw tube 203 is threadedly connected to the mounting screw tube 203. An elastic ring 206 is provided on the inner side of the protective sleeve 201. A fastening sleeve 204 is slidably connected to the inner side of the protective sleeve 201. The end of the fastening sleeve 204 has a conical structure. The elastic ring 206 abuts against the conical end of the fastening sleeve 204. An adjustment structure 3 is provided on the side of the sensor body 1.
[0022] As a technical optimization of this utility model, the protective sleeve 201 has limiting grooves 205 on both sides. The fastening sleeve 204 is slidably connected to the protective sleeve 201 through the limiting grooves 205. The protective sleeve 201 has a threaded sleeve 202 threadedly connected to its side. The end of the threaded sleeve 202 abuts against the side of the fastening sleeve 204. The elastic ring 206 abuts against the sensor body 1. The inner diameter of the protective sleeve 201 is larger than the diameter of the end of the sensor body 1. To facilitate the movement of the fastening sleeve 204, both ends of the fastening sleeve 204 extend out of the protective sleeve 201 through the limiting grooves 205. The user can rotate the threaded sleeve 202 that abuts against the fastening sleeve 204 and push the fastening sleeve 204 by rotating the thread between the threaded sleeve 202 and the protective sleeve 201, which is more labor-saving.
[0023] As a technical optimization of this utility model, the adjustment structure 3 includes a gear sleeve 305. The mounting screw tube 203 is slidably connected to the sensor body 1. The gear sleeve 305 is fixedly connected to the mounting screw tube 203. The mounting base 301 is slidably connected to the sensor body 1. The gear sleeve 305 is rotatably connected to the inner side of the mounting base 301. A transmission gear 306 meshes with the side of the gear sleeve 305. The transmission gear 306 is rotatably connected to the mounting base 301. A bevel gear 307 is fixedly connected to the top side of the transmission gear 306. A control rod 302 is rotatably connected to the end of the mounting base 301. The end of the control rod 302 meshes with the bevel gear 307. An adjustment screw 303 is rotatably connected to the top side of the mounting base 301. A connecting block 304 is fixedly connected to the side of the sensor body 1. The adjustment screw 303 passes through the connecting block. 304. A threaded screw block 308 is rotatably connected to the middle of the connecting block 304. The adjusting screw 303 is threadedly connected to the threaded screw block 308. The sensor body 1 is usually installed by the mounting screw. However, in order to facilitate the adjustment of the detection depth of the detection end of the sensor body 1, the user can rotate the threaded screw block 308 located inside the connecting block 304. The threaded screw block 308 is threadedly connected to the adjusting screw 303, allowing the user to freely adjust the position of the mounting screw tube 203 on the sensor body 1. After the adjustment is completed, the threaded end of the mounting screw tube 203 is placed into the screw hole to be installed. The user can then directly rotate the control rod 302 located at the end of the mounting base 301. The gear sleeve 305 is rotated through the bevel gear 307 and the transmission gear 306. This allows the sensor body 1 to be rotated when the mounting screw tube 203 is threadedly installed, making the operation convenient.
[0024] In use, this invention firstly features a protective sleeve 201 at the detection end of the sensor body 1, providing protection against drops and other hazards. After temperature measurement, the sensor tip may become contaminated with corrosive impurities. The user can slide the fastening sleeve 204 inside the protective sleeve 201. The inner side of the fastening sleeve 204 has a conical structure. As the fastening sleeve 204 slides, its conical structure applies pressure to the elastic ring 206 on its top side, increasing the contact force between the inner side of the elastic ring 206 and the sensor body 1. This allows the user to slide the protective sleeve 201 and clean the impurities adhering to the detection end of the sensor body 1 through the tightly contacting elastic ring 206, ensuring the normal operation of the sensor body 1. To facilitate movement of the fastening sleeve 204, both ends of the fastening sleeve 204 extend out of the protective sleeve 201 via limiting grooves 205. 1. The user can rotate the threaded sleeve 202 that abuts against the fastening sleeve 204. The fastening sleeve 204 is pushed by the threaded rotation between the threaded sleeve 202 and the protective sleeve 201, which is more labor-saving. The sensor body 1 is usually installed by the mounting screw. In order to facilitate the adjustment of the detection depth of the detection end of the sensor body 1, the user can rotate the threaded screw block 308 located inside the connecting block 304. The threaded screw block 308 is threadedly connected to the adjusting screw 303, so that the user can freely adjust the position of the mounting screw tube 203 on the sensor body 1. After the adjustment is completed, the threaded end of the mounting screw tube 203 is placed into the screw hole to be installed. The user can directly rotate the control rod 302 located at the end of the mounting base 301. The gear sleeve 305 is driven to rotate through the bevel gear 307 and the transmission gear 306. Thus, the sensor body 1 does not need to be rotated when the mounting screw tube 203 is threadedly installed, which is convenient for operation.
[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A high-precision temperature sensor resistant to industrial corrosion, comprising a sensor body (1), characterized in that: The sensor body (1) is provided with a protective structure (2), the protective structure (2) includes a mounting screw tube (203), the sensor body (1) is provided with a mounting screw tube (203), a protective sleeve (201) is threadedly connected to the mounting screw tube (203), an elastic ring (206) is provided on the inner side of the protective sleeve (201), a fastening sleeve (204) is slidably connected to the inner side of the protective sleeve (201), the end of the fastening sleeve (204) is a conical structure, the elastic ring (206) abuts against the conical surface at the end of the fastening sleeve (204), and an adjustment structure (3) is provided on the side of the sensor body (1).
2. The high-precision temperature sensor resistant to industrial corrosion according to claim 1, characterized in that: The protective sleeve (201) has limiting grooves (205) on both sides, and the fastening sleeve (204) is slidably connected to the protective sleeve (201) through the limiting grooves (205).
3. The high-precision temperature sensor resistant to industrial corrosion according to claim 1, characterized in that: The protective sleeve (201) has a threaded sleeve (202) threadedly connected to its side, and the end of the threaded sleeve (202) abuts against the side of the fastening sleeve (204).
4. The high-precision temperature sensor resistant to industrial corrosion according to claim 1, characterized in that: The elastic ring (206) abuts against the sensor body (1), and the inner diameter of the protective sleeve (201) is larger than the diameter of the end of the sensor body (1).
5. The high-precision temperature sensor resistant to industrial corrosion according to claim 1, characterized in that: The adjustment structure (3) includes a gear sleeve (305), the mounting screw tube (203) is slidably connected to the sensor body (1), the gear sleeve (305) is fixedly connected to the mounting screw tube (203), the mounting base (301) is slidably connected to the sensor body (1), and the gear sleeve (305) is rotatably connected to the inner side of the mounting base (301).
6. The high-precision temperature sensor resistant to industrial corrosion according to claim 5, characterized in that: The gear sleeve (305) has a transmission gear (306) meshing on its side. The transmission gear (306) is rotatably connected to the mounting base (301). A bevel gear (307) is fixedly connected to the top side of the transmission gear (306).
7. The high-precision temperature sensor resistant to industrial corrosion according to claim 6, characterized in that: The end of the mounting base (301) is rotatably connected to a control rod (302), and the end of the control rod (302) meshes with a bevel gear (307).
8. The high-precision temperature sensor resistant to industrial corrosion according to claim 5, characterized in that: An adjusting screw (303) is rotatably connected to the top side of the mounting base (301), and a connecting block (304) is fixedly connected to the side of the sensor body (1), with the adjusting screw (303) passing through the connecting block (304).
9. The high-precision temperature sensor resistant to industrial corrosion according to claim 8, characterized in that: The connecting block (304) is rotatably connected to a threaded screw block (308) in the middle, and the adjusting screw (303) is threadedly connected to the threaded screw block (308).