Temperature sensor

Abstract

The utility model relates to the technical field of sensors, in particular to a temperature sensor, which comprises a conversion mechanism, the conversion mechanism comprises a millivoltmeter, the left side surface of the millivoltmeter is provided with a first groove, the inner wall of the first groove is fixedly connected with an electrode, and the inner wall of the first groove is provided with a measuring mechanism. The measuring mechanism comprises an insulating block, the surface of the insulating block is attached to the inner wall of the first groove, the inner wall of the insulating block is fixedly connected with a first detection rod, the surface of the insulating block is fixedly connected with a sliding block, the inner wall of the first groove is provided with a second groove, the sliding block is located in the second groove, and the first detection rod is fixedly connected with the sliding block. The inner wall of the millivoltmeter is provided with an elastic block, and the tail end of the elastic block is fixedly connected with a baffle plate. According to the utility model, the detection end can be conveniently replaced.

Description

Technical Field

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

[0002] A temperature sensor is a sensor that senses temperature and converts it into a usable output signal. Temperature sensors are the core component of temperature measuring instruments and come in a wide variety. They can be categorized by measurement method: contact and non-contact. Based on the sensor material and electronic component characteristics, they can be divided into thermal resistors and thermocouples. Thermocouple temperature sensors are the most commonly used contact temperature measurement devices in industry. They offer stable performance, a wide temperature measurement range, and the ability to transmit signals over long distances. They also feature a simple structure and are easy to use.

[0003] Common thermocouple temperature sensors on the market require the detection end to contact the object to be measured when measuring temperature, so they are prone to corrosion after long-term use. The conversion end of the thermocouple temperature sensor is not affected, and needs to be replaced when the detection end is damaged. Conventional thermocouple temperature sensors use welding to connect the detection end and the conversion end, so replacement is inconvenient. Summary of the Invention

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to provide a temperature sensor.

[0005] In order to achieve the above-mentioned purpose, the present utility model adopts the following technical solution: a temperature sensor, including a conversion mechanism, the conversion mechanism including a millivoltmeter, a first groove is provided on the left surface of the millivoltmeter, an electrode is fixedly connected to the inner wall of the first groove, a measuring mechanism is installed on the inner wall of the first groove, the measuring mechanism includes an insulating block, the surface of the insulating block is in contact with the inner wall of the first groove, a first detection rod is fixedly connected to the inner wall of the insulating block, a slider is fixedly connected to the surface of the insulating block, a second groove is provided on the inner wall of the first groove, the slider is located inside the second groove, an elastic block is installed on the inner wall of the millivoltmeter, and a baffle is fixedly connected to the end of the elastic block.

[0006] As a further description of the above technical solution:

[0007] An insulating rod is fixedly connected to the upper surface of the first detection rod, and a second detection rod is fixedly connected to the upper surface of the insulating rod. The right side surface of the second detection rod is in contact with the left side surface of the electrode.

[0008] As a further description of the above technical solution:

[0009] A protective mechanism is installed on the surface of the millivoltmeter, and the protective mechanism includes a first protective shell. The first protective shell is installed on the surface of the millivoltmeter. A fourth groove is opened on the left surface of the first protective shell, and the surface of the fourth groove is fixedly connected to the surface of the millivoltmeter.

[0010] As a further description of the above technical solution:

[0011] A second protective shell is installed on the left surface of the first protective shell, a first bump is fixedly connected to the right surface of the second protective shell, the first bump is located inside the first protective shell, and a second bump is fixedly connected to the surface of the second protective shell.

[0012] As a further description of the above technical solution:

[0013] A third groove is formed on the right side surface of the first protective shell, a fifth groove is formed on the inner wall of the third groove, and a sixth groove is formed on the upper surface of the second protective shell.

[0014] As a further description of the above technical solution:

[0015] A fixing mechanism is installed on the inner wall of the sixth groove, and the fixing mechanism includes a rotating plate. The surface of the rotating plate is movably connected to the inner wall of the sixth groove. A connecting block is fixedly connected to the surface of the rotating plate. The lower surface of the connecting block is fixedly connected to an anti-slip layer. The back side of the connecting block is fixedly connected to a spring. A through hole is opened on the surface of the connecting block.

[0016] The utility model has the following beneficial effects:

[0017] 1. Compared with the prior art, this temperature sensor is equipped with an insulating block, a millivoltmeter, and a baffle. During use, the baffle inside the millivoltmeter is pushed upward, so that the elastic block fixed on the upper surface of the baffle is compressed. At this time, the position of the slider fixed on the surface of the insulating block is aligned with the position of the second groove opened on the inner wall of the first groove, so that the right end of the insulating block can be inserted into the interior of the millivoltmeter, and the positions of the first detection rod and the second detection rod are aligned with the positions of the two electrodes. The baffle is lowered, and the elastic block fixed on the upper surface of the baffle rebounds, so that the insulating block can be locked inside the millivoltmeter. Compared with conventional devices, the detection end needs to be in contact with the object to be measured during use, so it is easy to corrode after long-term use. The conversion end of the thermocouple temperature sensor is not affected, and needs to be replaced when the detection end is damaged. The conventional thermocouple temperature sensor uses welding to connect the detection end and the conversion end, so it is inconvenient to replace. This device can facilitate the replacement of the detection end.

[0018] 2. Compared with the prior art, this temperature sensor, through the rotating plate, the connecting block and the second protective shell, when in use, when detection is required, the second protective shell is removed, and the second protrusion fixed on the surface of the second protective shell is inserted into the inside of the third groove and the fifth groove, so that the second protective shell is fixed on the first protective shell, and then the rotating plate is rotated, and the connecting block installed on the surface of the rotating plate can be pulled to both ends to clamp the device in the raised position, the anti-slip layer fixed on the lower surface of the connecting block can prevent slipping, and the through hole opened on the surface of the connecting block can also facilitate the insertion of bolts to fix the device, which can facilitate the fixation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a temperature sensor proposed by the present invention from a first perspective;

[0020] Figure 2 This is a schematic diagram of the overall structure of a temperature sensor proposed by the present invention from a second perspective;

[0021] Figure 3 This is a cross-sectional view of a temperature sensor proposed by the present utility model;

[0022] Figure 4 This is a schematic diagram of the overall structure of a temperature sensor proposed by the present invention from a third perspective.

[0023] Legend:

[0024] 1. Measuring mechanism; 101. First detection rod; 102. Second detection rod; 103. Insulating rod; 104. Insulating block; 105. Slider; 2. Conversion mechanism; 201. Millivoltmeter; 202. First groove; 203. Electrode; 204. Baffle; 205. Elastic block; 206. Second groove; 3. Protective mechanism; 301. First protective shell; 302. Third groove; 303. Fourth groove; 304. Second protective shell; 305. First bump; 306. Second bump; 307. Fifth groove; 308. Sixth groove; 4. Fixing mechanism; 401. Rotating plate; 402. Connecting block; 403. Spring; 404. Through hole; 405. Anti-slip layer. DETAILED DESCRIPTION

[0025] Reference Figure 1-4The utility model provides a temperature sensor: including a conversion mechanism 2, the conversion mechanism 2 includes a millivoltmeter 201, a first groove 202 is provided on the left surface of the millivoltmeter 201, an electrode 203 is fixedly connected to the inner wall of the first groove 202, a measuring mechanism 1 is installed on the inner wall of the first groove 202, the measuring mechanism 1 includes an insulating block 104, the surface of the insulating block 104 is in contact with the inner wall of the first groove 202, a first detection rod 101 is fixedly connected to the inner wall of the insulating block 104, a slider 105 is fixedly connected to the surface of the insulating block 104, a second groove 206 is provided on the inner wall of the first groove 202, the slider 105 is located inside the second groove 206, and a spring is installed on the inner wall of the millivoltmeter 201. The elastic block 205 is fixedly connected to the end of the elastic block 205 with a baffle 204. The baffle 204 inside the millivoltmeter 201 is pushed upward, so that the elastic block 205 fixed on the upper surface of the baffle 204 is compressed. At this time, the position of the slider 105 fixed on the surface of the insulating block 104 is made to correspond to the position of the second groove 206 opened on the inner wall of the first groove 202, so that the right end of the insulating block 104 can be inserted into the interior of the millivoltmeter 201, and the positions of the first detection rod 101 and the second detection rod 102 are made to correspond to the positions of the two electrodes 203. The baffle 204 is lowered, and the elastic block 205 fixed on the upper surface of the baffle 204 rebounds, so that the insulating block 104 can be locked inside the millivoltmeter 201.

[0026] The upper surface of the first detection rod 101 is fixedly connected to the insulating rod 103, and the upper surface of the insulating rod 103 is fixedly connected to the second detection rod 102. The right side surface of the second detection rod 102 is in contact with the left side surface of the electrode 203. The surface of the millivoltmeter 201 is installed with a protective mechanism 3, which includes a first protective shell 301. The first protective shell 301 is installed on the surface of the millivoltmeter 201. A fourth groove 303 is provided on the left side surface of the first protective shell 301. The surface of the fourth groove 303 is fixedly connected to the surface of the millivoltmeter 201. A second protective shell 304 is installed on the left side surface of the first protective shell 301. A first protrusion 305 is fixedly connected to the right side surface of the second protective shell 304. The first protrusion 305 is located inside the first protective shell 301. A second protrusion 306 is fixedly connected to the surface of the second protective shell 304. A third groove 302 is provided on the right side surface of the first protective shell 301. A fifth groove 307 is provided on the inner wall of the third groove 302. A sixth groove is provided on the upper surface of the second protective shell 304. 308, the inner wall of the sixth groove 308 is installed with a fixing mechanism 4, the fixing mechanism 4 includes a rotating plate 401, the surface of the rotating plate 401 is movably connected to the inner wall of the sixth groove 308, the surface of the rotating plate 401 is fixedly connected to a connecting block 402, the lower surface of the connecting block 402 is fixedly connected to an anti-slip layer 405, the back of the connecting block 402 is fixedly connected to a spring 403, and a through hole 404 is opened on the surface of the connecting block 402. When it is necessary to perform inspection, the second protective shell 304 is removed and the second protective shell is replaced. The second protrusion 306 fixed on the surface of 304 is inserted into the third groove 302 and the fifth groove 307, so that the second protective shell 304 is fixed on the first protective shell 301, and then the rotating plate 401 is rotated. The connecting block 402 installed on the surface of the rotating plate 401 can be pulled to both ends to clamp the device in the raised position. The anti-slip layer 405 fixed on the lower surface of the connecting block 402 can prevent slipping, and the through hole 404 opened on the surface of the connecting block 402 can also facilitate the insertion of bolts to fix the device, which can facilitate the fixation of the device.

[0027] Working principle: Push the baffle 204 inside the millivoltmeter 201 upwards, so that the elastic block 205 fixed on the upper surface of the baffle 204 is compressed. At this time, the position of the slider 105 fixed on the surface of the insulating block 104 corresponds to the position of the second groove 206 opened on the inner wall of the first groove 202. Then, the right end of the insulating block 104 can be inserted into the interior of the millivoltmeter 201, and the positions of the first detection rod 101 and the second detection rod 102 correspond to the positions of the two electrodes 203. Lower the baffle 204, and the elastic block 205 fixed on the upper surface of the baffle 204 rebounds, so that the insulating block 104 can be locked in the millivoltmeter. Inside the table 201, when inspection is required, the second protective shell 304 is removed, and the second protrusion 306 fixed on the surface of the second protective shell 304 is inserted into the third groove 302 and the fifth groove 307, so that the second protective shell 304 is fixed on the first protective shell 301, and then the rotating plate 401 is rotated. The connecting block 402 installed on the surface of the rotating plate 401 can be pulled to both ends to clamp the device in the raised position. The anti-slip layer 405 fixed on the lower surface of the connecting block 402 can prevent slipping, and the through hole 404 opened on the surface of the connecting block 402 can also facilitate the insertion of bolts to fix the device, which can facilitate the fixation of the device.

[0028] 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. A temperature sensor comprising a conversion mechanism (2), characterized in that: The conversion mechanism (2) comprises a millivoltmeter (201), a first groove (202) is provided on the left surface of the millivoltmeter (201), an electrode (203) is fixedly connected to the inner wall of the first groove (202), a measuring mechanism (1) is installed on the inner wall of the first groove (202), and the measuring mechanism (1) comprises an insulating block (104), a surface of the insulating block (104) is in contact with the inner wall of the first groove (202), a first detection rod (101) is fixedly connected to the inner wall of the insulating block (104), a slider (105) is fixedly connected to the surface of the insulating block (104), a second groove (206) is provided on the inner wall of the first groove (202), the slider (105) is located inside the second groove (206), an elastic block (205) is installed on the inner wall of the millivoltmeter (201), and a baffle (204) is fixedly connected to the end of the elastic block (205).

2. The temperature sensor according to claim 1, wherein: The upper surface of the first detection rod (101) is fixedly connected to an insulating rod (103), the upper surface of the insulating rod (103) is fixedly connected to a second detection rod (102), and the right side surface of the second detection rod (102) is in contact with the left side surface of the electrode (203).

3. The temperature sensor according to claim 1, wherein: A protective mechanism (3) is installed on the surface of the millivoltmeter (201), and the protective mechanism (3) comprises a first protective shell (301). The first protective shell (301) is installed on the surface of the millivoltmeter (201). A fourth groove (303) is provided on the left side surface of the first protective shell (301), and the surface of the fourth groove (303) is fixedly connected to the surface of the millivoltmeter (201).

4. The temperature sensor according to claim 3, wherein: A second protective shell (304) is installed on the left surface of the first protective shell (301), a first protrusion (305) is fixedly connected to the right surface of the second protective shell (304), the first protrusion (305) is located inside the first protective shell (301), and a second protrusion (306) is fixedly connected to the surface of the second protective shell (304).

5. The temperature sensor according to claim 4, characterized in that: A third groove (302) is provided on the right side surface of the first protective shell (301), a fifth groove (307) is provided on the inner wall of the third groove (302), and a sixth groove (308) is provided on the upper surface of the second protective shell (304).

6. The temperature sensor according to claim 5, characterized in that: A fixing mechanism (4) is installed on the inner wall of the sixth groove (308), and the fixing mechanism (4) includes a rotating plate (401). The surface of the rotating plate (401) is movably connected to the inner wall of the sixth groove (308). The surface of the rotating plate (401) is fixedly connected to a connecting block (402), the lower surface of the connecting block (402) is fixedly connected to an anti-slip layer (405), the back surface of the connecting block (402) is fixedly connected to a spring (403), and the surface of the connecting block (402) is provided with a through hole (404).

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