Protective structure of temperature sensitive element

Abstract

The utility model discloses a temperature sensitive element protection structure, which comprises a temperature sensor main body and a detection head, the right end of the detection head is installed on the temperature sensor main body, the left side of the temperature sensor main body is fixedly connected with an installation block, the installation block is sleeved on the detection head, the installation block is provided with a groove, and the groove is fixedly connected with the detection head. The inner wall of the groove is slidably connected with a sealing block, the sealing block sleeves the detection head and is slidably connected with the detection head, and the right side of the sealing block is fixedly connected with a spring. According to the utility model, the detection head of the temperature sensor can be effectively protected, the situation that the detection head is damaged in the use process is reduced, the detection head can be cleaned, the detection quality of the detection head is improved, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of temperature-sensitive element technology, and more specifically, to a protective structure for temperature-sensitive elements. Background Technology

[0002] Temperature-sensitive element protection structures refer to mechanical and electrical protection devices designed to protect temperature sensors (such as thermocouples, resistance temperature detectors, and thermistors) from environmental factors. The main functions of these protection structures are to ensure temperature measurement accuracy, extend the lifespan of the components, and adapt to various harsh operating environments.

[0003] When a temperature sensor measures the temperature of fluid in a pipeline, the sensor contacts the fluid through its detection head to detect the fluid temperature. However, if there are particles in the fluid, these particles will continuously impact the detection head, causing damage to it. Furthermore, calcium and magnesium salts or oil stains in the fluid will adhere to the surface of the detection head, affecting the accuracy of the temperature sensor. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a protective structure for temperature sensitive elements, so as to improve the protection effect and practical performance of temperature sensors.

[0005] To solve the aforementioned technical problems, the present invention adopts the following technical solution;

[0006] A protective structure for a temperature-sensitive element includes a temperature sensor body and a detection head. The right end of the detection head is mounted on the temperature sensor body. A mounting block is fixedly connected to the left side of the temperature sensor body. The mounting block is fitted onto the detection head. A groove is formed on the mounting block. A sealing block is slidably connected to the inner wall of the groove. The sealing block is fitted onto the detection head and slidably connected thereto. A spring is fixedly connected to the right side of the sealing block. The right end of the spring is fixedly connected to the groove. Two fixing rods are fixedly connected to the inner wall of the groove. The sealing block is fitted onto the two fixing rods and the detection head respectively and slidably connected thereto. A filter cartridge is provided on the left side of the sealing block. The right side of the filter cartridge is fixedly connected to the two fixing rods respectively. A protective barrel is fitted onto the filter cartridge and slidably connected thereto. A driving mechanism for driving the protective barrel to move left and right is provided on the top of the temperature sensor body. A cleaning tube is fixedly connected to the inner wall of the protective barrel. The right end of the cleaning tube passes through and extends into the interior of the filter cartridge. Two contact rods are fixedly connected to the right side of the protective barrel.

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

[0008] The driving mechanism includes a fixed block, the bottom of which is fixedly connected to the body of the temperature sensor. A lead screw is inserted through the fixed block and rotatably connected thereto. A motor is fixedly connected to the right side of the fixed block. The output shaft of the motor is fixedly connected to the lead screw. A movable block is threadedly connected to the lead screw. The bottom of the movable block is fixedly connected to the protective barrel.

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

[0010] A protective cover is fixedly connected to the left side of the fixing block. The protective cover is sleeved on the lead screw and rotatably connected to it. The left end of the lead screw is rotatably connected to the protective cover.

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

[0012] The cleaning tube is fitted with a closed ring that is fixedly connected to it, and the outer side of the closed ring is in contact with the inner side of the filter cartridge.

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

[0014] A protective box is fixedly connected to the right side of the fixing block, and the protective box is fitted onto the motor.

[0015] Compared with existing technologies, the advantages of this utility model are:

[0016] This solution provides effective protection for the temperature sensor's detection head, reducing the likelihood of damage during use. It also allows for cleaning of the detection head, improving detection quality and enhancing the device's practicality. Attached Figure Description

[0017] Figure 1 One of the perspective views of this utility model;

[0018] Figure 2 This is a second perspective view of the present utility model;

[0019] Figure 3 This is a cross-sectional view of the present invention;

[0020] Figure 4 This is a cross-sectional view of the present invention during the cleaning process of the detection head;

[0021] Figure 5 This is a cross-sectional view of the present invention when it is not in use.

[0022] Explanation of the labels in the diagram:

[0023] 1. Temperature sensor body; 2. Detection head; 3. Mounting block; 4. Groove; 5. Sealing block; 6. Spring; 7. Fixing rod; 8. Filter cartridge; 9. Protective casing; 10. Drive mechanism; 101. Fixing block; 102. Lead screw; 103. Motor; 104. Moving block; 11. Cleaning tube; 12. Contact rod; 13. Protective cover; 14. Sealing ring; 15. Protective box. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model;

[0025] Please see Figures 1-5 In this utility model: a protective structure for a temperature-sensitive element includes a temperature sensor body 1 and a detection head 2. The right end of the detection head 2 is mounted on the temperature sensor body 1. A mounting block 3 is fixedly connected to the left side of the temperature sensor body 1. The mounting block 3 is sleeved on the detection head 2. A groove 4 is formed on the mounting block 3. A sealing block 5 is slidably connected to the inner wall of the groove 4. The sealing block 5 is sleeved on the detection head 2 and slidably connected thereto. A spring 6 is fixedly connected to the right side of the sealing block 5. The right end of the spring 6 is fixedly connected to the groove 4. Two fixing rods 7 are fixedly connected to the inner wall of the groove 4. The sealing block 5 is respectively sleeved on the two fixing rods 7 and the detection head 2 and slidably connected thereto. A filter cylinder 8 is provided on the left side of the sealing block 5. The right side of the filter cylinder 8 is fixedly connected to the two fixing rods 7 respectively. A protective barrel 9 is slidably connected to the filter cartridge 8. A drive mechanism 10 is provided on the top of the temperature sensor body 1 to drive the protective barrel 9 to move left and right. A cleaning tube 11 is fixedly connected to the inner wall of the protective barrel 9. The right end of the cleaning tube 11 passes through and extends into the interior of the filter cartridge 8. Two contact rods 12 are fixedly connected to the right side of the protective barrel 9. The drive mechanism 10 includes a fixing block 101. The bottom of the fixing block 101 is fixedly connected to the temperature sensor body 1. A lead screw 102 is inserted through the fixing block 101 and rotatably connected to it. A motor 103 is fixedly connected to the right side of the fixing block 101. The output shaft of the motor 103 is fixedly connected to the lead screw 102. A moving block 104 is threadedly connected to the lead screw 102. The bottom of the moving block 104 is fixedly connected to the protective barrel 9.

[0026] In this invention, after the temperature sensor body 1 is installed, the detection head 2 is located inside the pipe. The fluid in the pipe needs to pass through the filter cylinder 8 to come into contact with the detection head 2. After the detection head 2 comes into contact with the fluid in the pipe, the temperature of the fluid can be measured. When the fluid passes through the filter cylinder 8, the filter cylinder 8 will filter the particulate matter in the fluid, thereby effectively preventing the fluid flow from carrying particulate matter to cause impact damage to the detection head 2, thus achieving the effect of protecting the detection head 2.

[0027] After a period of use, if impurities adhere to the surface of the detection head 2, the motor 103 is first turned on to drive the lead screw 102 to rotate. Then, the moving block 104 will drive the protective barrel 9 to move to the right along the filter cylinder 8. During the movement, the protective barrel 9 will scrape off the particles attached to the surface of the filter cylinder 8, thereby achieving a certain cleaning effect on the filter cylinder 8. At the same time, the cleaning tube 11 will be inserted into the detection head 2. The cleaning tube 11 will slide along the surface of the detection head 2, thereby scraping off the impurities attached to the surface of the detection head 2, achieving a certain cleaning effect on the detection head 2, and thus maintaining the accuracy of the detection head 2 in detecting fluid.

[0028] As the protective barrel 9 moves to the right, the contact rod 12 will come into contact with the sealing block 5. Then, the contact rod 12 will push the sealing block 5 into the groove 4. At this time, the sealing block 5 will lose its seal on the filter cylinder 8, and the impurities scraped out inside the filter cylinder 8 will fall out of the filter cylinder 8, thereby achieving the effect of impurity discharge.

[0029] As the protective barrel 9 moves to the right until it contacts the left side of the mounting block 3, the protective barrel 9 will completely enclose the filter cylinder 8, thereby isolating the detection head 2 from the fluid and achieving the effect of protecting the detection head 2. This prevents the detection head 2 from being affected by the fluid when it is not necessary to detect the fluid temperature, thus improving the protection effect of the detection head 2.

[0030] Please see Figures 1-5 The left side of the fixed block 101 is fixedly connected to a protective cover 13, which is sleeved on the lead screw 102 and rotatably connected to it. The left end of the lead screw 102 is rotatably connected to the protective cover 13.

[0031] In this invention, the protective cover 13 can protect the lead screw 102, preventing the lead screw 102 from being affected by long-term fluid impact, thereby improving the practicality of the device.

[0032] Please see Figures 3-5 The cleaning tube 11 is fitted with a closed ring 14 that is fixedly connected to it, and the outer side of the closed ring 14 is in contact with the inner side of the filter cartridge 8.

[0033] In this invention, the closed ring 14 is installed when the cleaning tube 11 cleans the detection head 2 to prevent impurities from moving to the left and entering the filter cartridge 8, thereby improving the subsequent discharge of impurities.

[0034] Please see Figures 1-5 The right side of the fixing block 101 is fixedly connected to the protective box 15, which is sleeved on the motor 103.

[0035] In this invention, the protective box 15 can protect the motor 103, thereby improving the stability of the device.

[0036] The above are merely preferred embodiments of this utility model; however, the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and its improved concept, should be included within the scope of protection of this utility model.

Claims

1. A protective structure for a temperature-sensitive element, comprising a temperature sensor body (1) and a detection head (2), wherein the right end of the detection head (2) is mounted on the temperature sensor body (1), characterized in that: A mounting block (3) is fixedly connected to the left side of the temperature sensor body (1). The mounting block (3) is sleeved on the detection head (2). A groove (4) is provided on the mounting block (3). A sealing block (5) is slidably connected to the inner wall of the groove (4). The sealing block (5) is sleeved on the detection head (2) and slidably connected thereto. A spring (6) is fixedly connected to the right side of the sealing block (5). The right end of the spring (6) is fixedly connected to the groove (4). Two fixing rods (7) are fixedly connected to the inner wall of the groove (4). The sealing block (5) is respectively sleeved on the two fixing rods (7) and the detection head (2). The head (2) is slidably connected to it. A filter cylinder (8) is provided on the left side of the sealing block (5). The right side of the filter cylinder (8) is fixedly connected to two fixing rods (7). A protective barrel (9) is slidably connected to the filter cylinder (8). A driving mechanism (10) for driving the protective barrel (9) to move left and right is provided on the top of the temperature sensor body (1). A cleaning tube (11) is fixedly connected to the inner wall of the protective barrel (9). The right end of the cleaning tube (11) passes through and extends into the interior of the filter cylinder (8). Two contact rods (12) are fixedly connected to the right side of the protective barrel (9).

2. The temperature-sensitive element protection structure according to claim 1, characterized in that: The drive mechanism (10) includes a fixed block (101), the bottom of which is fixedly connected to the temperature sensor body (1), a lead screw (102) rotatably connected to the fixed block (101), a motor (103) fixedly connected to the right side of the fixed block (101), the output shaft of the motor (103) fixedly connected to the lead screw (102), a moving block (104) threadedly connected to the lead screw (102), and the bottom of the moving block (104) fixedly connected to the protective barrel (9).

3. The temperature-sensitive element protection structure according to claim 2, characterized in that: A protective cover (13) is fixedly connected to the left side of the fixed block (101). The protective cover (13) is sleeved on the lead screw (102) and rotatably connected to it. The left end of the lead screw (102) is rotatably connected to the protective cover (13).

4. The temperature-sensitive element protection structure according to claim 1, characterized in that: The cleaning tube (11) is fitted with a closed ring (14) that is fixedly connected to it, and the outer side of the closed ring (14) is in contact with the inner side of the filter cylinder (8).

5. The temperature-sensitive element protection structure according to claim 2, characterized in that: A protective box (15) is fixedly connected to the right side of the fixing block (101), and the protective box (15) is sleeved on the motor (103).

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