Anti-loosening exhaust gas temperature sensor mounting structure

Abstract

This utility model relates to the field of exhaust temperature sensors, and more particularly to an anti-loosening exhaust temperature sensor mounting structure. It includes a sensor body, one end of which is electrically connected to a plug. A mounting plate is slidably connected to the arc surface of the sensor body. The arc surface of the sensor body is provided with a fixing structure, which includes a positioning ring, a fixing ring, and six positioning rods. The positioning ring and the fixing ring are fixedly connected to the sensor body. The anti-loosening exhaust temperature sensor mounting structure provided by this utility model solves the problem that during gas detection, a small amount of gas may leak from the connection between the sensor body and the exhaust pipe. After long-term use, this gas will flow along the threaded gaps of the mounting pipe, exerting force on the mounting pipe, causing it to rotate, and thus leading to the sensor body becoming loose.

Description

Technical Field

[0001] This utility model relates to the field of exhaust temperature sensors, and in particular to an exhaust temperature sensor mounting structure that prevents loosening. Background Technology

[0002] An exhaust temperature sensor is a sensor used to monitor the temperature of an engine's exhaust system, commonly used in automobiles, diesel engines, and industrial equipment. It measures the temperature of exhaust gases in real time and transmits the data to the vehicle's electronic control unit or other control systems to adjust engine combustion efficiency and optimize the operation of emission control systems. This type of exhaust temperature sensor is quite common in existing technology.

[0003] Existing technologies, such as the utility model patent with publication number CN217059109U, disclose a durable exhaust temperature sensor. This patent employs a fixed cylinder, a first ventilation box, and a second ventilation box. Uniformly distributed connecting blocks are fixedly installed on the outer wall of the fixed cylinder, and a protective cylinder is fixedly installed on the outer wall of the connecting blocks. The exhaust temperature sensor body is fixedly installed on the inner wall of the fixed cylinder, and an external thread layer is fixedly provided on one side of the outer wall of the exhaust temperature sensor body. A temperature probe is fixedly installed on the exhaust temperature sensor body. This device can be quickly and stably installed on the exhaust pipe and has a heat insulation and heat dissipation structure for the lead wires, which can improve the service life of the lead wires on the exhaust temperature sensor body, thereby improving the durability of the exhaust temperature sensor. The spring provides a certain cushioning effect when the vehicle is in motion, thus improving the stability of the exhaust temperature sensor body installation.

[0004] In the prior art, exhaust temperature sensors are usually installed in key detection parts such as exhaust pipes and exhaust manifolds. During the gas detection process, a small amount of gas may leak from the connection between the sensor body and the exhaust pipe. After long-term use, this gas will flow along the thread gap of the mounting pipe, exerting force on the mounting pipe and causing it to rotate, which in turn causes the sensor body to loosen. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies where, during the detection of gas using a sensor, a small amount of gas leaks from the connection between the sensor body and the exhaust pipe. After long-term use, this gas flows along the thread gap of the mounting pipe, exerting force on the mounting pipe and causing it to rotate, which in turn causes the sensor body to loosen. Therefore, this invention proposes an exhaust temperature sensor mounting structure that prevents loosening.

[0006] To solve the above-mentioned technical problems, this utility model provides an anti-loosening exhaust temperature sensor mounting structure, comprising: a sensor body, one end of which is electrically connected to a plug; a mounting plate is slidably connected to the arc surface of the sensor body; a fixing structure is provided on the arc surface of the sensor body; the fixing structure includes a positioning ring, a fixing ring, and six positioning rods; the positioning ring is fixedly connected to the sensor body; the fixing ring is fixedly connected to the sensor body; the six positioning rods are fixedly connected to the sensor body; three connecting grooves are provided inside the fixing ring; positioning plates are slidably connected to the inner walls of the connecting grooves; the three positioning plates are fixedly connected to the mounting plate; limit grooves are provided on the inner walls of the positioning plates; a locking block is slidably connected to the inner walls of the limit grooves; a rotating ring is threadedly connected to the arc surface of the positioning ring; the six positioning rods are grouped in pairs; a moving plate is slidably connected to the arc surface of one group of positioning rods; the moving plate is fixedly connected to the locking block; a spring is sleeved on the arc surface of the positioning rod; the two ends of the spring are fixedly connected to the moving plate and the sensor body, respectively; and a stop block is fixedly connected to the end of the positioning rod away from the sensor body.

[0007] The effect achieved by the above components is as follows: when personnel need to fix the sensor body on the mounting plate, they can first move the three movable plates to the appropriate position, and then move the sensor body to make the positioning plate slide into the inner wall of the connecting groove. Then, the personnel release the movable plates to make the locking block slide into the inner wall of the limiting groove. The personnel rotate the rotating ring to move the rotating ring to the side where the three movable plates are close to each other, thereby improving the installation speed and the stability of the sensor body.

[0008] Preferably, the inner wall of the rotating ring is provided with a plurality of anti-slip grooves, and the plurality of anti-slip grooves are evenly provided on the arc surface of the rotating ring.

[0009] The effect achieved by the above components is that the anti-slip groove can increase the friction between the person's hand and the rotating ring, and can prevent the person from slipping during the rotation of the ring.

[0010] Preferably, a guide strip is fixedly connected to the side of the card block away from the moving plate, and the guide strip is slidably connected to the limiting groove.

[0011] The effect achieved by the above components is that the guide bar can guide the locking block, making it easy for personnel to slide the locking block into the inner wall of the limiting groove.

[0012] Preferably, the arc surface of the spring is fitted with a bellows, and the two ends of the bellows are fixedly connected to the moving plate and the sensor body, respectively.

[0013] The effect achieved by the above components is that the bellows can protect the spring and prevent other substances from coming into direct contact with the spring, thus affecting the service life of the spring.

[0014] Preferably, a protective pad is fixedly connected to the side of the stop block near the rotating ring.

[0015] The effect achieved by the above components is that the protective pad can protect the moving plate and the stop block, and can prevent the moving plate from directly contacting the stop block.

[0016] Preferably, the movable plate is a stainless steel plate.

[0017] The effect achieved by the above components is that the stainless steel plate has high strength and good wear resistance, which can prevent the moving plate from deforming during short-term use.

[0018] Compared with related technologies, the anti-loosening exhaust temperature sensor mounting structure provided by this utility model has the following advantages:

[0019] This utility model provides an anti-loosening exhaust temperature sensor mounting structure. By setting a fixing structure, when personnel need to fix the sensor body on the mounting plate, the fixing structure can facilitate personnel to quickly and stably fix the sensor body on the mounting plate, thereby speeding up the installation speed of the sensor body, improving the installation efficiency and the stability of the sensor body. Attached Figure Description

[0020] Figure 1 A schematic diagram of an anti-loosening exhaust temperature sensor mounting structure provided by this utility model;

[0021] Figure 2 for Figure 1 The diagram shows the structure of the fixed structure.

[0022] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at point A shown;

[0023] Figure 4 for Figure 2 The diagram shows a partial structural schematic.

[0024] The following are the labels in the diagram: 1. Sensor body; 2. Mounting plate; 3. Fixing structure; 301. Fixing ring; 302. Positioning plate; 303. Limiting groove; 304. Locking block; 305. Guide strip; 306. Positioning ring; 307. Rotary ring; 308. Anti-slip groove; 309. Moving plate; 310. Positioning rod; 311. Protective pad; 312. Corrugated pipe; 313. Spring; 314. Connecting groove; 315. Stop; 4. Plug. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0027] Please see Figure 1 The present invention provides an anti-loosening exhaust temperature sensor mounting structure, comprising: a sensor body 1, one end of which is electrically connected to a plug 4, a mounting plate 2 slidably connected to the arc surface of the sensor body 1, and a fixing structure 3 provided on the arc surface of the sensor body 1.

[0028] In the embodiments of this utility model, please refer to Figures 2 to 4The fixing structure 3 includes a positioning ring 306, a fixing ring 301, and six positioning rods 310. The positioning ring 306 is fixedly connected to the sensor body 1, the fixing ring 301 is fixedly connected to the sensor body 1, and the six positioning rods 310 are fixedly connected to the sensor body 1. The fixing ring 301 has three connecting grooves 314 inside, and the inner wall of the connecting grooves 314 is slidably connected to a positioning plate 302. The three positioning plates 302 are fixedly connected to the mounting plate 2. The inner wall of the positioning plates 302 has a limit groove 303 for limiting the position. The inner wall of the groove 303 is slidably connected to a locking block 304. The arc surface of the positioning ring 306 is threadedly connected to a rotating ring 307. The six positioning rods 310 are grouped in pairs. The arc surface of one group of positioning rods 310 is slidably connected to a moving plate 309. The moving plate 309 is fixedly connected to the locking block 304. The arc surface of the positioning rod 310 is fitted with a spring 313. The two ends of the spring 313 are fixedly connected to the moving plate 309 and the sensor body 1, respectively. The end of the positioning rod 310 away from the sensor body 1 is fixedly connected to a stop block 315. When personnel need to fix the sensor body 1 on the mounting plate 2, they can first move the three movable plates 309 to a suitable position. Then, by moving the sensor body 1, the positioning plate 302 slides into the inner wall of the connecting groove 314. After releasing the movable plates 309, the locking block 304 slides into the inner wall of the limiting groove 303. Then, by rotating the rotating ring 307, the rotating ring 307 moves to the side where the three movable plates 309 are close to each other, thereby improving the installation speed and the stability of the sensor body 1. The inner wall of the rotating ring 307 is provided with several anti-slip grooves 308, which are evenly distributed on the arc surface of the rotating ring 307. The anti-slip groove 308 increases the friction between the operator's hand and the rotating ring 307, preventing slippage during rotation. A guide strip 305 is fixedly connected to the side of the locking block 304 furthest from the moving plate 309, and this guide strip 305 is slidably connected to the limiting groove 303. The guide strip 305 guides the locking block 304, facilitating its sliding into the inner wall of the limiting groove 303. A bellows 312 is fitted over the arc surface of the spring 313, with both ends of the bellows 312 fixedly connected to the moving plate 309 and the sensor body 1, respectively. The bellows 312 protects the spring 313, preventing direct contact with other substances and ensuring its lifespan. A protective pad 311 is fixedly connected to the side of the stop block 315 closest to the rotating ring 307. The protective pad 311 protects the movable plate 309 and the stop block 315, preventing direct contact between them. The movable plate 309 is made of stainless steel. Stainless steel has high strength and good wear resistance, preventing deformation of the movable plate 309 during short-term use.

[0029] The working principle of the anti-loosening exhaust temperature sensor mounting structure provided by this utility model is as follows: When personnel need to use the sensor body 1 to detect the temperature inside the exhaust pipe, they can first move the three movable plates 309, causing the movable plates 309 to move closer to the sensor body 1. The movable plates 309 drive the locking block 304 to move closer to the sensor. The movable plates 309 also drive the two springs 313 and the two bellows 312 to rewind. The bellows 312 can protect the springs 313 and prevent other... The material comes into direct contact with the spring 313, affecting the service life of the spring 313. Then, the locking block 304 drives the guide bar 305 to move closer to the sensor body 1 until the locking block 304 moves to the appropriate position. Then, the personnel move the sensor body 1, which drives the fixing ring 301, positioning ring 306 and six positioning rods 310 to move closer to the mounting plate 2 until the detection end of the sensor body 1 slides into the interior of the mounting plate 2, and the positioning plate 302 slides into the inner wall of the connecting groove 314. Then, the personnel... Release the movable plate 309. The spring 313 then rebounds, causing the guide bar 305 to move closer to the limiting groove 303 until the guide bar 305 and the locking block 304 are fully slid into the inner wall of the limiting groove 303. The guide bar 305 guides the locking block 304, making it easier for personnel to slide it into the inner wall of the limiting groove 303. Then, the personnel rotate the rotating ring 307, causing it to move closer to the fixed ring 301. The anti-slip groove 308 on the inner wall of the rotating ring 307 increases the slip resistance between the personnel's hands and the rotating ring. The friction between 307 can prevent slippage during the rotation of the rotating ring 307 until the rotating ring 307 moves to the side where the three moving plates 309 are close to each other. The protective pad 311 on the side of the stop block 315 near the moving plate 309 can protect the moving plate 309 and the stop block 315 and prevent the moving plate 309 from directly contacting the stop block 315. The moving plate 309 is made of stainless steel plate. Stainless steel plate has high strength and good wear resistance and can prevent the moving plate 309 from deforming during short-term use.

[0030] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0031] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A loosening-preventive exhaust gas temperature sensor mounting structure characterized by comprising: include: A sensor body (1) is electrically connected to a plug (4) at one end. A mounting plate (2) is slidably connected to the arc surface of the sensor body (1). A fixing structure (3) is provided on the arc surface of the sensor body (1). The fixing structure (3) includes a positioning ring (306), a fixing ring (301), and six positioning rods (310). The positioning ring (306) is fixedly connected to the sensor body (1), the fixing ring (301) is fixedly connected to the sensor body (1), and the six positioning rods (310) are fixedly connected to the sensor body (1). Three connecting grooves (314) are provided inside the fixing ring (301). A positioning plate (302) is slidably connected to the inner wall of the connecting groove (314). The three positioning plates (302) are slidably connected to the inner wall of the connecting groove (314). 02) Fixedly connected to the mounting plate (2), the inner wall of the positioning plate (302) is provided with a limiting groove (303), the inner wall of the limiting groove (303) is slidably connected with a locking block (304), the arc surface of the positioning ring (306) is threadedly connected with a rotating ring (307), the six positioning rods (310) are in pairs, the arc surface of one group of positioning rods (310) is slidably connected with a moving plate (309), the moving plate (309) is fixedly connected with the locking block (304), the arc surface of the positioning rod (310) is fitted with a spring (313), the two ends of the spring (313) are fixedly connected to the moving plate (309) and the sensor body (1) respectively, and the end of the positioning rod (310) away from the sensor body (1) is fixedly connected with a stop block (315).

2. The anti-loosening exhaust temperature sensor mounting structure according to claim 1, characterized by The inner wall of the rotating ring (307) is provided with a plurality of anti-slip grooves (308), and the plurality of anti-slip grooves (308) are evenly provided on the arc surface of the rotating ring (307).

3. The anti-loosening exhaust temperature sensor mounting structure according to claim 1, characterized by The guide strip (305) is fixedly connected to the side of the card block (304) away from the moving plate (309), and the guide strip (305) is slidably connected to the limiting groove (303).

4. The anti-unthreading exhaust gas temperature sensor mounting structure according to claim 1, characterized by The spring (313) has a bellows (312) fitted on its arc surface. The two ends of the bellows (312) are fixedly connected to the moving plate (309) and the sensor body (1), respectively.

5. The anti-unthreading exhaust gas temperature sensor mounting structure according to claim 1, characterized by A protective pad (311) is fixedly connected to the side of the stop (315) near the rotating ring (307).

6. The anti-unthreading exhaust gas temperature sensor mounting structure according to claim 1, characterized by The movable plate (309) is made of stainless steel.

Images