Anti-coking thermocouple

Abstract

The utility model relates to the thermocouple field, and discloses an anti-coking thermocouple comprising a telescoping mechanism and a fixing mechanism, the telescoping mechanism comprises a first spiral cylinder, the upper end and the lower end of the inner wall of the first spiral cylinder are rotatably connected with first fixing rods, and the inner wall of the first spiral cylinder is in threaded connection with a spiral column. A thermocouple body is slidably connected to the inner wall of the spiral column, the fixing mechanism comprises a fixing cover, a fifth groove is formed in the fixing cover, and a spring is fixedly arranged in the fifth groove. According to the utility model, the thermocouple body is protected through the arrangement of the moving block, the clamping block and the first groove, the thermocouple body is prevented from being polluted by dust and being insensitive to the temperature change when the thermocouple body is idle, and meanwhile, through the first spiral cylinder and the spiral column, the thermocouple body can be wrapped in time after the temperature measurement is finished, so that the thermocouple body is prevented from being damaged. Contact between the anti-corrosion layer and the anti-coking layer of the thermocouple body and air is reduced, and the thermocouple body is prevented from losing the anti-corrosion and anti-coking functions.

Description

Technical Field

[0001] The utility model relates to the field of thermocouples, in particular to an anti-coking thermocouple. Background Art

[0002] A thermocouple is a sensor that measures temperature by measuring thermoelectric potential. The primary function of a thermocouple is to accurately measure temperature. It can measure a wide range of temperatures, with different types of thermocouples having different temperature measurement ranges. When a thermocouple comes into contact with a medium prone to coking, coke can form on the thermocouple surface. Furthermore, coke has poor thermal conductivity, which can affect the thermocouple's temperature sensitivity.

[0003] In the process of realizing this application, the inventors discovered that the existing technology has the following problems: traditional anti-coking thermocouples generally include a thermocouple body, an anti-coking layer, a supporting mechanism, a display structure, etc. When idle, traditional anti-coking thermocouples will be exposed to the air for a long time. The long-term contact between the anti-coking layer and the air will cause the anti-coking effect to deteriorate. At the same time, the thermocouple body will be covered with dust and may be insensitive to temperature changes.

[0004] Therefore, those skilled in the art provide an anti-coking thermocouple to solve the problems raised in the above background technology. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an anti-coking thermocouple. The utility model drives the card block to slide out from the inside of the No. 1 groove through the moving rod. This structure can protect the thermocouple body to prevent it from being contaminated by dust when idle, resulting in insensitivity to temperature changes. At the same time, through the No. 1 spiral cylinder and the internal spiral column, the thermocouple body can be wrapped in time after the temperature measurement is completed, reducing the contact between the anti-corrosion layer and the anti-coking layer of the thermocouple body and the air, thereby preventing it from losing its anti-corrosion and anti-coking functions.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: an anti-coking thermocouple, comprising a telescopic mechanism and a fixing mechanism, wherein the telescopic mechanism comprises a No. 1 spiral barrel, wherein the upper and lower ends of the inner wall of the No. 1 spiral barrel are rotatably connected to a No. 1 fixing rod, and the inner wall of the No. 1 spiral barrel is threadedly connected to a spiral column, and the inner wall of the spiral column is slidably connected to a thermocouple body;

[0007] The fixing mechanism includes a fixing cover, a No. 5 groove is opened inside the fixing cover, a spring is fixedly arranged in the No. 5 groove, both sides of the spring are fixedly connected with a card block, and the front end surfaces of the two card blocks are located in the No. 5 groove and are fixedly connected with a moving block.

[0008] Furthermore, the two clamping blocks are slidably connected to the fifth groove, and the two moving blocks are slidably connected to the fifth groove.

[0009] Furthermore, a No. 3 groove is opened at the upper end of the inner wall of the spiral column, and one of the two No. 1 fixing rods is movably set in the No. 3 groove; a No. 4 groove is opened at the lower end of the inner wall of the spiral column, and one of the two No. 1 fixing rods is movably set in the No. 4 groove.

[0010] Furthermore, the front end of the thermocouple body passes through the spiral column, and the rear end surface of the thermocouple body is fixedly connected to the thermocouple head.

[0011] Furthermore, a No. 2 groove is provided inside the front end of the spiral column, and the two No. 1 fixing rods and the thermocouple body can both pass through the No. 2 groove, and the outer wall of the fixing cover is movably connected to the No. 2 groove.

[0012] Furthermore, a No. 1 groove is provided on both sides of the front end of the spiral column, and the two clamping blocks pass through both sides of the fixed cover.

[0013] Furthermore, the No. 1 spiral cylinder is rotatably connected to the thermocouple body, the outer wall of the rear end face of the No. 1 spiral cylinder is rotatably connected to the thermocouple head, and the rear end faces of the two No. 1 fixing rods are fixedly connected to the thermocouple head.

[0014] Furthermore, a display is fixedly connected to the rear end face of the thermocouple head, an anti-corrosion layer is provided on the outer wall of the thermocouple body, and an anti-scorch layer is provided on the outer wall of the anti-corrosion layer.

[0015] The utility model has the following beneficial effects:

[0016] 1. The utility model proposes an anti-coking thermocouple. First, the two movable blocks are moved inward to drive the two clamping blocks to slide out from the inside of the No. 1 groove, exposing the spiral column and the thermocouple body. Through this structure, when the overall structure is idle, the internal thermocouple body will not be affected by dust and covered, resulting in insensitivity to heat.

[0017] 2. The utility model proposes an anti-coking thermocouple. When the No. 1 spiral barrel is rotated, the spiral column moves backward to expose the thermocouple body. The overall structure can wrap the thermocouple body in time after the measurement is completed to prevent the anti-corrosion layer and the anti-coking layer from losing their anti-corrosion and anti-coking properties due to long-term exposure to the air. It can also ensure that the thermocouple body will not be damaged by accidental impact during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall axonometric structure of the present invention;

[0019] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0020] Figure 3It is a schematic diagram of the local structure of the utility model;

[0021] Figure 4 This is another partial structural diagram of the utility model;

[0022] Figure 5 This is another cross-sectional schematic diagram of the present invention.

[0023] Legend:

[0024] 1. Telescopic mechanism; 2. Fixing mechanism; 3. Groove No. 1; 4. Thermocouple head; 5. Thermocouple body; 6. Display; 7. Anti-scorch layer; 8. Anti-corrosion layer; 101. Spiral cylinder No. 1; 102. Fixing rod No. 1; 103. Spiral column; 104. Groove No. 2; 105. Groove No. 3; 106. Groove No. 4; 201. Fixed cover; 202. Block; 203. Spring; 204. Groove No. 5; 205. Moving block. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0026] Reference Figures 1-4 The utility model provides an embodiment: an anti-coking thermocouple, including a telescopic mechanism 1 and a fixing mechanism 2. The telescopic mechanism 1 includes a No. 1 spiral cylinder 101, the upper and lower ends of the inner wall of the No. 1 spiral cylinder 101 are rotatably connected to a No. 1 fixing rod 102, the inner wall of the No. 1 spiral cylinder 101 is threadedly connected to a spiral column 103, and the inner wall of the spiral column 103 is slidably connected to a thermocouple body 5; the fixing mechanism 2 includes a fixing cover 201, a No. 5 groove 204 is opened inside the fixing cover 201, a spring 203 is fixedly arranged in the No. 5 groove 204, and both sides of the spring 203 are fixedly connected to a card block 202, and the front end surfaces of the two card blocks 202 are located in the No. 5 groove 204 and are fixedly connected to a moving block 205.

[0027] Specifically, first use your thumb and index finger to push the two moving blocks 205 inward, and the two moving blocks 205 drive the two clamping blocks 202 to slide out from the two No. 1 grooves 3 and the two clamping blocks 202 slide inside the No. 5 groove 204 and squeeze the spring 203 inward. At this time, move the fixed cover 201 to expose the spiral column 103.

[0028] Reference Figure 1-Figure 5, the two blocks 202 are slidably connected to the fifth groove 204, the two moving blocks 205 are slidably connected to the outer wall of the fifth groove 204, the upper end of the inner wall of the spiral column 103 is provided with a third groove 105, and one of the two No. 1 fixing rods 102 is movably set in the third groove 105, the lower end of the inner wall of the spiral column 103 is provided with a fourth groove 106, and one of the two No. 1 fixing rods 102 is movably set in the fourth groove 106, the front end of the thermocouple body 5 passes through the spiral column 103, the rear end face of the thermocouple body 5 is fixedly connected to the thermocouple head 4, and the front end of the spiral column 103 is provided with a second groove Groove 104, and the two No. 1 fixing rods 102 and the thermocouple body 5 can both pass through the No. 2 groove 104, the outer wall of the fixing cover 201 is movably connected to the No. 2 groove 104, No. 1 groove 3 is provided on both sides of the front end of the spiral column 103, two blocks 202 pass through both sides of the fixing cover 201, No. 1 spiral cylinder 101 is rotatably connected to the thermocouple body 5, the outer wall of the rear end face of the No. 1 spiral cylinder 101 is rotatably connected to the thermocouple head 4, the rear end faces of the two No. 1 fixing rods 102 are fixedly connected to the thermocouple head 4, the rear end face of the thermocouple head 4 is fixedly connected to the display 6, the outer wall of the thermocouple body 5 is provided with an anti-corrosion layer 8, and the outer wall of the anti-corrosion layer 8 is provided with an anti-scorch layer 7.

[0029] Specifically, hold the No. 1 spiral cylinder 101 and rotate it to move the internal spiral column 103 backward. Because the No. 1 spiral cylinder 101 and the spiral column 103 are threadedly connected, and because the two No. 1 fixing rods 102 restrict the spiral column 103 from rotating and can only move, the spiral column 103 moves backward to expose the internal thermocouple body 5. The entire structure can be placed at a position where the temperature needs to be detected, so that the thermocouple body 5 is in direct contact with the temperature, and the heat is transferred to the display 6 through the thermocouple head 4 at the back.

[0030] Working principle: Hold the No. 1 spiral barrel 101 and rotate it, driving the internal threaded spiral column 103 to rotate. Because the two No. 1 fixing rods 102 restrict the spiral column 103 and prevent it from rotating, the spiral column 103 moves backward along the two No. 1 fixing rods 102 to expose the internal thermocouple body 5, preventing the integration mechanism from being in the position where the temperature needs to be measured. The temperature is transmitted to the thermocouple head 4 at the rear through the contact temperature of the thermocouple body 5, and finally to the display 6.

[0031] Secondly, when the heat needs to be moved after measurement, the entire structure can be taken out, and then the two moving blocks 205 can be grasped and moved inward. The two moving blocks 205 drive the two clamping blocks 202 to squeeze the spring 203 inward, and the two clamping blocks 202 are retracted into the No. 5 groove 204 inside the fixed cover 201. The fixed cover 201 is placed inside the No. 2 groove 104, and then the two moving blocks 205 are released. Under the action of the spring 203, the two clamping blocks 202 pass through the two No. 1 grooves 3. The anti-corrosion layer 8 and the anti-scorch layer 7 on the outer wall of the thermocouple body 5 can further protect the internal thermocouple body 5.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An anti-coking thermocouple, comprising a telescopic mechanism (1) and a fixing mechanism (2), characterized in that: The telescopic mechanism (1) comprises a No. 1 spiral cylinder (101), the upper and lower ends of the inner wall of the No. 1 spiral cylinder (101) are rotatably connected to a No. 1 fixed rod (102), the inner wall of the No. 1 spiral cylinder (101) is threadedly connected to a spiral column (103), and the inner wall of the spiral column (103) is slidably connected to a thermocouple body (5). The fixing mechanism (2) comprises a fixing cover (201), a fifth groove (204) is provided inside the fixing cover (201), a spring (203) is fixedly provided inside the fifth groove (204), both sides of the spring (203) are fixedly connected with a clamping block (202), and the front ends of the two clamping blocks (202) are located inside the fifth groove (204) and are fixedly connected with a moving block (205).

2. An anti-coking thermocouple according to claim 1, characterized in that: The two clamping blocks (202) are slidably connected to the fifth groove (204), and the two moving blocks (205) are slidably connected to the outer wall of the fifth groove (204).

3. An anti-coking thermocouple according to claim 1, characterized in that: A third groove (105) is provided at the upper end of the inner wall of the spiral column (103), and one of the two first fixing rods (102) is movably arranged in the third groove (105). A fourth groove (106) is provided at the lower end of the inner wall of the spiral column (103), and one of the two first fixing rods (102) is movably arranged in the fourth groove (106).

4. An anti-coking thermocouple according to claim 1, characterized in that: The front end of the thermocouple body (5) passes through the spiral column (103), and the rear end surface of the thermocouple body (5) is fixedly connected to the thermocouple head (4).

5. An anti-coking thermocouple according to claim 4, characterized in that: A second groove (104) is provided inside the front end of the spiral column (103), and the two first fixing rods (102) and the thermocouple body (5) can both pass through the second groove (104), and the outer wall of the fixing cover (201) is movably connected to the second groove (104).

6. An anti-coking thermocouple according to claim 1, characterized in that: A groove (3) is provided on both sides of the front end of the spiral column (103), and the two clamping blocks (202) pass through both sides of the fixed cover (201).

7. An anti-coking thermocouple according to claim 1, characterized in that: The No. 1 spiral cylinder (101) is rotatably connected to the thermocouple body (5); the outer wall of the rear end face of the No. 1 spiral cylinder (101) is rotatably connected to the thermocouple head (4); and the rear end faces of the two No. 1 fixing rods (102) are fixedly connected to the thermocouple head (4).

8. An anti-coking thermocouple according to claim 7, characterized in that: The rear end face of the thermocouple head (4) is fixedly connected to a display (6), the outer wall of the thermocouple body (5) is provided with an anti-corrosion layer (8), and the outer wall of the anti-corrosion layer (8) is provided with an anti-scorch layer (7).

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