Temperature sensor with corrosion-resistant structure

Abstract

The utility model relates to the field of temperature sensors, and discloses a temperature sensor with a corrosion-resistant structure, which comprises a detection tube, a sealing assembly is arranged on the right side of the detection tube, a connecting tube is arranged on the right side of the sealing assembly, a temperature monitoring tube is arranged on the inner walls of the detection tube and the connecting tube, and the sealing assembly comprises a fixing sleeve. The fixing sleeve is connected to the outer wall of the right side of the connecting pipe in a sleeving mode, a fixing ring is fixedly connected to the outer wall of the right side of the connecting pipe, a mounting pipe is inserted into the right side of the connecting pipe, a threaded groove is formed in the inner side of the fixing sleeve, the fixing sleeve is connected to the outer side of the mounting pipe in a threaded mode, and the fixing sleeve slides on the outer side of the fixing ring. According to the utility model, through cooperative use of the sealing assembly and the detection tube, when corrosion damage occurs in long-time use, the detection tube can be rapidly and independently replaced through the sealing assembly, so that the whole sensor does not need to be replaced, and the equipment maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of temperature sensors, in particular to a temperature sensor with a corrosion-resistant structure. Background Art

[0002] A temperature sensor senses the temperature of the measured medium and converts it into an electrical signal or other forms of signals for output, so as to facilitate subsequent measurement, display, recording or control.

[0003] Temperature sensors are widely used in industrial production, scientific research and daily life. However, in many special environments, such as the chemical, petroleum, pharmaceutical and other fields, the sensors need to face corrosive media such as acids and alkalis. When some components on the sensors are corroded and damaged, it is not convenient to replace them, and the whole sensor needs to be replaced.

[0004] Traditional temperature sensors usually adopt an integral structure when facing a corrosive environment. For example, Chinese Patent Publication No.: CN218066810U discloses a corrosion-resistant temperature sensor for a compressor, the first housing, the connecting body and the second housing are all made of 304 stainless steel and are all fixedly installed. After long-term use, once a certain part of the sensor is corroded and damaged, the whole sensor needs to be replaced, which not only increases the equipment maintenance cost. Therefore, a temperature sensor with a corrosion-resistant structure is proposed to solve the above problems. Summary of the Invention

[0005] In order to make up for the above deficiencies, the utility model provides a temperature sensor with a corrosion-resistant structure, aiming to improve the problem in the prior art that "after long-term use, when a certain part of the sensor is corroded and damaged, the whole sensor needs to be replaced, increasing the equipment maintenance cost".

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: A temperature sensor with a corrosion-resistant structure includes a detection tube, a sealing assembly is arranged on the right side of the detection tube, a connecting tube is arranged on the right side of the sealing assembly, a temperature monitoring tube is arranged on the inner walls of the detection tube and the connecting tube, the sealing assembly includes a fixing sleeve, the fixing sleeve is sleeved on the outer wall of the right side of the connecting tube, a fixing ring is fixedly connected to the outer wall of the right side of the connecting tube, an installation tube is inserted into the right side of the connecting tube, a threaded groove is formed on the inner side of the fixing sleeve, and the fixing sleeve is threadedly connected to the outside of the installation tube.

[0007] As a further description of the above technical solution:

[0008] The fixing sleeve slides on the outside of the fixing ring, and sealing rings are arranged on the inner walls of the detection tube and the installation tube.

[0009] As a further description of the above technical solution:

[0010] A rubber pad is provided on the right side of the detection tube, and the left side of the connecting tube is fixedly connected to the right side of the installation tube.

[0011] As a further description of the above technical solution:

[0012] Positioning posts are provided on the left side of the installation tube.

[0013] As a further description of the above technical solution:

[0014] The sealing ring is made of corrosion-resistant material.

[0015] As a further description of the above technical solution:

[0016] A limiting component is provided on the outer side of the installation tube. The limiting component includes a movable sleeve. The inner side of the movable sleeve is slidably connected to the outer side of the installation tube. A limiting post is fixedly connected to the left side of the movable sleeve. A limiting groove is formed on the right side of the fixed sleeve, and the limiting post is inserted into the inner wall of the limiting groove.

[0017] As a further description of the above technical solution:

[0018] Multiple groups of the limiting posts and the limiting grooves are provided, and the movable sleeve and the installation tube are elastically connected by a compression spring.

[0019] As a further description of the above technical solution:

[0020] Anti-slip strips are provided on the outer side of the movable sleeve.

[0021] The present utility model has the following beneficial effects:

[0022] 1. In the present utility model, through the combined use of the sealing component and the detection tube, when corrosion damage occurs during long-term use, the detection tube can be quickly replaced separately through the sealing component, so that the entire sensor does not need to be replaced, reducing the equipment maintenance cost.

[0023] 2. In the present utility model, through the combined use of the limiting component and the fixed sleeve, during the use of the temperature sensor device, the fixed sleeve is limited by the limiting component to prevent the fixed sleeve from rotating during use, improving the sealing performance and stability of the device and maintaining the corrosion resistance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the overall device in the present utility model;

[0025] Figure 2 It is a disassembled three-dimensional structural schematic diagram of the sealing component in the present utility model;

[0026] Figure 3 For the present utility modelFigure 2 Schematic diagram of the enlarged three-dimensional structure at position A in the middle

[0027] Figure 4 Front view three-dimensional structure sectional view of the installation pipe and the connecting pipe in the present utility model

[0028] Legend description:

[0029] 1. Connecting pipe; 2. Detection pipe; 3. Temperature monitoring pipe; 41. Fixed sleeve; 42. Installation pipe; 43. Fixed ring; 44. Sealing ring; 45. Rubber pad; 51. Moving sleeve; 52. Limit post; 53. Limit groove; 54. Compression spring Specific implementation manner

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model

[0031] Referring to Figure 1 and Figure 2 , an embodiment provided by the present utility model: A temperature sensor with a corrosion-resistant structure includes a detection pipe 2 for contacting the object or environment to be measured and transmitting the temperature to the internal temperature monitoring pipe 3. The outer side is provided with a corrosion-resistant coating. A sealing assembly is provided on the right side of the detection pipe 2 to ensure the sealing performance between the sensor and the external environment, prevent external corrosive substances from entering the interior of the sensor and affecting the accuracy of temperature detection and the service life of the sensor, and at the same time facilitate the replacement of the detection pipe 2. A connecting pipe 1 is provided on the right side of the sealing assembly to provide support and protection for the internal temperature monitoring pipe 3. The temperature monitoring pipe 3 is provided on the inner walls of the detection pipe 2 and the connecting pipe 1 for detecting the temperature of the object or environment to be measured. It is installed on the inner walls of the connecting pipe 1 and the detection pipe 2. By sensing the temperature change and converting it into a measurable form of an electrical signal, the temperature detection is realized. This technology is the prior art, so it will not be elaborated here. The sealing assembly includes a fixed sleeve 41, which is connected to the outside of the installation pipe 42 by threading, playing a role in fixing the connecting pipe 1 and the installation pipe 42. At the same time, with the cooperation of the fixed ring 43, the tightness and stability of the connection are ensured

[0032] Referring to Figure 1 - Figure 3, The fixing sleeve 41 is sleeved on the outer wall of the right side of the connecting pipe 1. A fixing ring 43 is fixedly connected to the outer wall of the right side of the connecting pipe 1, which provides a sliding track and a limiting function for the fixing sleeve 41 to prevent the fixing sleeve 41 from moving excessively. An installation pipe 42 is inserted into the right side of the connecting pipe 1, which provides an installation position for the sealing ring 44. A positioning post is arranged on the left side of the installation pipe 42 to facilitate installation and positioning. Thread grooves are formed inside the fixing sleeve 41, which can improve the stability when the connecting pipe 1 is connected to the installation pipe 42. The fixing sleeve 41 is threadedly connected to the outside of the installation pipe 42, and the fixing sleeve 41 slides on the outside of the fixing ring 43. A sealing ring 44 is arranged between the detection pipe 2 and the inner wall of the installation pipe 42. The sealing ring 44 is made of a corrosion-resistant material. By using a corrosion-resistant material, it can prevent external corrosive substances from entering the sensor through the connection part, ensuring the sealing and corrosion resistance of the sensor. A rubber pad 45 is arranged on the right side of the detection pipe 2 to further enhance the sealing between the detection pipe 2 and the installation pipe 42 and prevent corrosive substances from entering the sensor. The left side of the connecting pipe 1 is fixedly connected to the right side of the installation pipe 42.

[0033] Refer to Figure 2 - Figure 4 , A limiting component is arranged on the outside of the installation pipe 42. The limiting component includes a moving sleeve 51. The inner side of the moving sleeve 51 is slidably connected to the outside of the installation pipe 42. The position of the fixing sleeve 41 can be limited through the moving sleeve 51 and the limiting post 52, improving the stability of the fixing sleeve 41. Anti-slip strips are arranged on the outside of the moving sleeve 51, which can increase the friction force and facilitate operation. A limiting post 52 is fixedly connected to the left side of the moving sleeve 51. When the moving sleeve 51 moves to a suitable position, the limiting post 52 is inserted into the inner wall of the limiting groove 53 on the right side of the fixing sleeve 41 to prevent the fixing sleeve 41 from loosening during use and ensure the connection stability of the sealing component.

[0034] Furthermore, a limiting groove 53 is formed on the right side of the fixing sleeve 41, which provides an insertion position for the limiting post 52 and cooperates with the limiting post 52 to limit the fixing sleeve 41. The limiting post 52 is inserted into the inner wall of the limiting groove 53. There are multiple groups of the limiting post 52 and the limiting groove 53. The moving sleeve 51 and the installation pipe 42 are elastically connected through a compression spring 54, which provides an elastic restoring force for the moving sleeve 51, enabling the compression spring 54 to push the moving sleeve 51 to move and making the limiting post 52 stably inserted into the limiting groove 53.

[0035] Working principle: When installing or disassembling the detection pipe 2, manually pull the moving sleeve 51 to overcome the elastic force of the compression spring 54, so that the limiting post 52 is pulled out of the limiting groove 53. At this time, the rotation operation of the fixing sleeve 41 can be carried out, and the fixing sleeve 41 is spirally rotated on the outside of the installation pipe 42 through the thread groove, thereby disconnecting the connection between the detection pipe 2 and the installation pipe 42.

[0036] At this time, the sealing ring 44 and the rubber pad 45 are removed, and then the fixing sleeve 41 is removed. The temperature monitoring tube 3 is withdrawn from the inner wall of the detection tube 2 to perform a separate and rapid replacement of the detection tube 2, so that the entire sensor does not need to be replaced, reducing the equipment maintenance cost.

[0037] After the replacement is completed, the fixing sleeve 41, the sealing ring 44 and the rubber pad 45 are installed in sequence, and then the above operations are reversed to install the device.

[0038] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A temperature sensor with a corrosion-resistant structure, comprising a detection tube (2), characterized in that: A sealing assembly is provided on the right side of the detection tube (2), a connecting tube (1) is provided on the right side of the sealing assembly, a temperature monitoring tube (3) is provided on the inner walls of the detection tube (2) and the connecting tube (1), the sealing assembly includes a fixing sleeve (41), the fixing sleeve (41) is sleeved on the outer wall of the right side of the connecting tube (1), a fixing ring (43) is fixedly connected to the outer wall of the right side of the connecting tube (1), an installation tube (42) is inserted into the right side of the connecting tube (1), a thread groove is formed inside the fixing sleeve (41), and the fixing sleeve (41) is threadedly connected to the outside of the installation tube (42).

2. The temperature sensor with a corrosion-resistant structure according to claim 1, wherein: The fixing sleeve (41) slides on the outside of the fixing ring (43), and sealing rings (44) are provided on the inner walls of the detection tube (2) and the installation tube (42).

3. A temperature sensor with a corrosion-resistant structure according to claim 1, characterized in that: A rubber pad (45) is provided on the right side of the detection tube (2), and the left side of the connecting tube (1) is fixedly connected to the right side of the installation tube (42).

4. A temperature sensor with a corrosion-resistant structure according to claim 1, characterized in that: A positioning post is provided on the left side of the installation tube (42).

5. The temperature sensor with a corrosion-resistant structure according to claim 2, wherein: The sealing ring (44) is made of a corrosion-resistant material.

6. The temperature sensor with a corrosion-resistant structure according to claim 1, characterized in that: A limiting assembly is provided on the outside of the installation tube (42), the limiting assembly includes a moving sleeve (51), the inside of the moving sleeve (51) is slidably connected to the outside of the installation tube (42), a limiting post (52) is fixedly connected to the left side of the moving sleeve (51), a limiting groove (53) is formed on the right side of the fixing sleeve (41), and the limiting post (52) is inserted into the inner wall of the limiting groove (53).

7. A temperature sensor with a corrosion-resistant structure according to claim 6, characterized in that: Multiple groups of the limiting post (52) and the limiting groove (53) are provided, and the moving sleeve (51) and the installation tube (42) are elastically connected by a compression spring (54).

8. The temperature sensor with a corrosion-resistant structure according to claim 6, characterized in that: Anti-slip strips are provided on the outside of the moving sleeve (51).

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