Hydrogen-sensitive sensor and use method thereof

Abstract

The invention provides a hydrogen-sensitive sensor and a using method, and relates to the field of intelligent sensors, the hydrogen-sensitive sensor comprises a shell, a pin arranged on the shell and a mounting seat arranged on the shell, and the hydrogen-sensitive sensor and the using method aim at solving the problems that when the pin is connected with external equipment in the prior art, the interface end of the external equipment is prone to being vibrated and impacted by the outside to affect the equipment work, and the equipment is damaged. In order to solve the problem of inaccurate data of the hydrogen-sensitive sensor caused by looseness of a pin and a connecting end of external equipment due to the fact that the pin is connected with the external equipment, the situation that the pin and an elastic clamping piece are loosened due to external vibration is reduced by arranging a synchronous adjusting mechanism and driving a convex block to rotate and lock through the synchronous adjusting mechanism, and the accuracy of the data is improved; through the arrangement of the synchronous adjusting mechanism, the problem that in the prior art, a pin and an elastic clamping piece cannot be attached all the time, so that the stability of equipment is low is solved; through the arrangement of the synchronous adjusting mechanism, the problem that the maintenance cost is high due to the fact that a single pin is damaged in the prior art is solved.

Description

Technical Field

[0001] This invention relates to the field of smart sensors, and more specifically, to a hydrogen sensor and its usage method. Background Technology

[0002] Hydrogen sensors are existing smart sensors that integrate signal processing, microcontrollers, and digital communication technologies. They are specifically designed to detect hydrogen gas. The sensor's core function is to detect hydrogen leaks, monitor hydrogen concentration, and prevent dangers such as explosions and poisoning.

[0003] Existing hydrogen sensors consist of a sensing element, conversion circuit, heater, housing, and pins. The pins connect the hydrogen sensor to external circuits, transmit detection signals, and power the heater. The hydrogen sensor connects to the external device interface via the pins. However, in actual use, the external device interface is susceptible to vibration and impact, which can loosen the pins and the connection to the external device. This can lead to poor contact, fluctuating detection data, or even failure, resulting in inaccurate data and serious safety hazards.

[0004] Therefore, we have made improvements to this and proposed a hydrogen-sensitive sensor and its usage method. Summary of the Invention

[0005] The purpose of this invention is to address the problem that when pins are connected to external devices, the interface of the external device is easily affected by external vibrations and impacts, which can cause the pins and external device connections to become loose, resulting in inaccurate data from the hydrogen sensor.

[0006] To achieve the above-mentioned objectives, the present invention provides a hydrogen-sensitive sensor and a method of using it to solve the aforementioned problems.

[0007] The application is as follows:

[0008] Includes a housing, pins disposed on the housing, a mounting base disposed on the housing, and a synchronization adjustment mechanism disposed on the mounting base;

[0009] The synchronization adjustment mechanism includes a fixed disk rotatably mounted on the mounting base, a protrusion mounted on the pin, a gear mounted on the fixed disk, a drive plate slidably mounted on the mounting base, a rack mounted on the drive plate, a drive shaft rotatably mounted on the mounting base, a knob mounted on the drive shaft, a push block mounted on the drive shaft, and a torsion spring mounted on the push block and the mounting base.

[0010] As a preferred technical solution of this application, the pin is rotatably mounted on the mounting base, the gear and rack are adapted to each other, the push block is rotatably mounted on the mounting base, and the drive plate and the push block are adapted to each other.

[0011] As a preferred technical solution of this application, the mounting base is provided with an arc-shaped groove, and the knob is provided with a transmission column, which is slidably disposed on the arc-shaped groove.

[0012] As a preferred technical solution of this application, the ends of the pins and bumps are both frustum-shaped.

[0013] As a preferred technical solution of this application, the mounting base is provided with a sliding groove, and the drive shaft is provided with a strip groove.

[0014] As a preferred technical solution of this application, the knob is slidably disposed on the strip groove and the sliding groove, and a torsion spring is disposed on the corresponding surface of the mounting base and the fixed plate.

[0015] As a preferred technical solution of this application, the mounting base is provided with a connecting cavity, the connecting cavity is provided with an inlet / outlet hole, and the pin is provided with a limit block.

[0016] As a preferred technical solution of this application, the limiting block and the inlet / outlet hole are mutually adapted, the pins and protrusions are slidably disposed on the fixed disk, and the pins and the limiting block are slidably disposed in the connecting cavity.

[0017] As a preferred technical solution of this application, the top moving block is provided with a wedge-shaped part, and the wedge part and the drive plate are adapted to each other.

[0018] The method for using a hydrogen sensor is as follows:

[0019] Step S1: By rotating the knob, the knob drives the drive shaft and the push block to rotate synchronously. The push block rotates and becomes parallel to the drive plate. The transmission column on the push block rotates synchronously and slides along the arc groove. At this time, the first torsion spring stores force and inserts the pin and bump into the external device port. When the pin and bump are fully inserted into the external device port, the pin is in contact with the elastic clip of the external device. The elastic clip is squeezed by the pin and stores force. When the knob is manually released, the first torsion spring releases its elasticity and drives the drive shaft, the knob, and the push block to rotate in the opposite direction. The push block rotates in the opposite direction and squeezes the drive plate. The drive plate drives the rack to slide. The rack drives the gear to rotate. The gear drives the fixed disk to rotate synchronously. The second torsion spring on the fixed disk stores force and drives the pin and bump to rotate synchronously. The bump rotates and squeezes the elastic clip of the external device, so that the pin and bump are fixed on the external device.

[0020] Step S2: When there is continuous external vibration, the torsion spring continuously releases its elasticity. At this time, the rotation angle of the protrusion gradually increases, and the deformation degree of the elastic clamp of the external device gradually increases. Through vibration self-locking, the clamping degree of the protrusion and the elastic clamp increases according to the degree of vibration, so that the protrusion and the elastic clamp are always in contact, ensuring continuous and accurate output of detection data.

[0021] Step S3: When a single pin is damaged, drive the knob to slide along the strip groove. The transmission column on the knob slides synchronously and disengages from the arc groove. At this time, the arc groove releases its limit on the transmission column. Then drive the knob to rotate 90 degrees. Similarly, the fixed plate rotates 90 degrees. At this time, the inlet / outlet hole and the limit block coincide. Pull the pin and the protrusion out of the mounting base. At this time, the pin and the limit block disengage along the sliding part of the inlet / outlet hole and the fixed plate. At this time, the single pin can be quickly replaced.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] In the scheme of this application:

[0024] 1. In order to solve the problem in the prior art that when the pins are connected to the external device, the interface of the external device is easily affected by external vibration and impact, which can cause the pins and the external device connection to become loose and result in inaccurate data from the hydrogen sensor, this application sets up a synchronous adjustment mechanism. By driving the protrusion to rotate and lock through the synchronous adjustment mechanism, the loosening of the pins and elastic clips caused by external vibration is reduced, thereby improving the accuracy of the data.

[0025] 2. By setting a synchronous adjustment mechanism, the clamping degree of the bump and the elastic clip is adaptively increased according to the degree of vibration, so that the bump and the elastic clip are always in contact, ensuring continuous and accurate output of detection data, meeting the long-term safe use requirements in harsh industrial environments, improving the stability of the equipment, and solving the problem of low equipment stability caused by the inability of the pin and the elastic clip to always keep in contact in the existing technology.

[0026] 3. By setting up a synchronous adjustment mechanism, the rapid replacement of individual pins is realized, reducing maintenance costs, improving maintenance efficiency, and solving the problem of high maintenance costs caused by damage to a single pin in the existing technology. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the hydrogen sensor provided in this application;

[0028] Figure 2 A schematic diagram of the overall structure of the mounting base for the hydrogen sensor provided in this application;

[0029] Figure 3This is a partial cross-sectional view of the mounting base for the hydrogen sensor provided in this application.

[0030] Figure 4 A schematic diagram of the overall structure of the pins and bumps of the hydrogen sensor provided in this application;

[0031] Figure 5 The hydrogen sensor provided in this application Figure 4 Enlarged structural diagram of area A in the middle;

[0032] Figure 6 The hydrogen sensor provided in this application Figure 4 Enlarged structural diagram of area B in the middle;

[0033] Figure 7 A schematic diagram of the overall structure of the moving block and wedge-shaped part of the hydrogen sensor provided in this application.

[0034] The image shows:

[0035] 1. Housing; 101. Pins; 102. Mounting bracket;

[0036] 2. Synchronous adjustment mechanism; 201. Fixed plate; 202. Protrusion; 203. Gear; 204. Drive plate; 205. Rack; 206. Drive shaft; 207. Knob; 208. Pushing block; 209. Torsion spring one; 210. Arc groove; 211. Transmission column; 212. Sliding groove; 213. Strip groove; 214. Torsion spring two; 215. Connecting cavity; 216. Inlet and outlet hole; 217. Limiting block; 218. Wedge-shaped part. Detailed Implementation

[0037] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0038] As described in the background section, when the pins are connected to external devices, the interface of the external device is easily affected by external vibrations and impacts, which can cause the connection between the pins and the external device to become loose, resulting in inaccurate data from the hydrogen sensor.

[0039] To address this technical problem, the present invention provides a hydrogen-sensitive sensor and its usage method, which is applied to smart sensors.

[0040] For details, please refer to Figure 1 - Figure 7As shown, the hydrogen sensor specifically includes: a housing 1, pins 101 disposed on the housing 1, a mounting base 102 disposed on the housing 1, and a synchronization adjustment mechanism 2 disposed on the mounting base 102;

[0041] The synchronous adjustment mechanism 2 includes a fixed disk 201 rotatably mounted on the mounting base 102, a protrusion 202 mounted on the pin 101, a gear 203 mounted on the fixed disk 201, a drive plate 204 slidably mounted on the mounting base 102, a rack 205 mounted on the drive plate 204, a drive shaft 206 rotatably mounted on the mounting base 102, a knob 207 mounted on the drive shaft 206, a push block 208 mounted on the drive shaft 206, and a torsion spring 209 mounted on the push block 208 and the mounting base 102.

[0042] The hydrogen sensor and its usage method provided by this invention address the problem in the prior art where the interface of the external device is easily affected by external vibrations and impacts when the pin 101 is connected to the external device, leading to loosening of the connection between the pin 101 and the external device and resulting in inaccurate data from the hydrogen sensor. This application improves the accuracy of the data by setting a synchronous adjustment mechanism 2, which drives the protrusion 202 to rotate and lock, thereby reducing the loosening of the pin 101 and the elastic clip caused by external vibrations.

[0043] By using the synchronous adjustment mechanism 2, the clamping degree of the protrusion 202 and the elastic clip is adaptively increased according to the degree of vibration, so that the protrusion 202 and the elastic clip are always in contact, ensuring continuous and accurate output of detection data, meeting the long-term safe use requirements in harsh industrial environments, improving the stability of the device, and solving the problem of low device stability caused by the inability of the pin 101 and the elastic clip to always keep in contact in the prior art.

[0044] By using the synchronization adjustment mechanism 2, the rapid replacement of a single pin 101 is achieved, reducing maintenance costs, improving maintenance efficiency, and solving the problem of high maintenance costs caused by damage to a single pin 101 in the prior art.

[0045] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0046] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0047] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0048] Example 1, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, a hydrogen sensor has its pin 101 rotatably mounted on the mounting base 102, a gear 203 and a rack 205 adapted to each other, a push block 208 rotatably mounted on the mounting base 102, and a drive plate 204 and a push block 208 adapted to each other.

[0049] The existing external device port uses a flexible clip to clamp pin 101, thereby fixing pin 101 to the external device. During use, rotating knob 207 drives drive shaft 206 and actuating block 208 to rotate synchronously. Figure 7 As shown, the actuating block 208 rotates and becomes parallel to the drive plate 204. At this time, the torsion spring 209 stores force, inserting pin 101 and protrusion 202 into the external device port. When pin 101 and protrusion 202 are fully inserted into the external device port, pin 101 is in contact with the elastic clip of the external device. The elastic clip is compressed and stores force by pin 101. When the knob 207 is manually released, the torsion spring 209 releases its elasticity. The torsion spring 209 drives the drive shaft 206, knob 207, and actuating block 208 to rotate in the opposite direction. The actuating block 208 rotates in the opposite direction and presses the drive plate 204. The drive plate 204 drives the rack 205 to slide. The rack 205 drives the gear 203 to rotate. The gear 203 drives the fixed disk 201 to rotate synchronously. The fixed disk 201 drives pin 101 and protrusion 202 to rotate in parallel. 02. Synchronous rotation of the protrusion 202 and its rotation pressing the elastic clamp of the external device increases the deformation of the elastic clamp. By locking the protrusion 202 by rotation, the loosening of the pin 101 and the elastic clamp caused by external vibration is reduced, thus improving the accuracy of the data. When there is continuous external vibration, the torsion spring 209 continuously releases its elasticity. At this time, the rotation angle of the protrusion 202 gradually increases, and the deformation of the elastic clamp of the external device gradually increases. Through vibration self-locking, the clamping degree of the protrusion 202 and the elastic clamp is increased according to the degree of vibration, so that the protrusion 202 is always in contact with the elastic clamp, ensuring continuous and accurate output of detection data, meeting the long-term safe use requirements in harsh industrial environments, and improving the stability of the device.

[0050] Furthermore, the mounting base 102 is provided with an arc-shaped groove 210, and the knob 207 is provided with a transmission column 211, which is slidably disposed on the arc-shaped groove 210.

[0051] When the push block 208 rotates, the transmission column 211 on the push block 208 rotates synchronously. The transmission column 211 rotates and slides along the arc groove 210. The arc groove 210 limits the transmission column 211, so that the rotation of the protrusion 202 is always less than 90 degrees. When the protrusion 202 rotates more than 90 degrees, the pin 101 and the elastic clip of the external device will make secondary contact, thereby preventing the elastic clip of the external device and the protrusion 202 from becoming loose.

[0052] Furthermore, the ends of both pin 101 and bump 202 are frustum-shaped;

[0053] The ends of pin 101 and bump 202 are frustoconical, as shown in the figure. Figure 7 As shown, when pin 101 and bump 202 are simultaneously inserted into the elastic clip of the external device, the friction between pin 101 and bump 202 is reduced by the frustum shape, thereby reducing the wear of pin 101 and bump 202.

[0054] By using the synchronous adjustment mechanism 2 to drive the protrusion 202 to rotate and lock, the loosening of the pin 101 and the elastic clip caused by external vibration is reduced, thus improving the accuracy of the data. The synchronous adjustment mechanism 2 adaptively increases the clamping degree of the protrusion 202 and the elastic clip according to the degree of vibration, so that the protrusion 202 and the elastic clip are always in contact, ensuring continuous and accurate output of detection data, meeting the long-term safe use requirements in harsh industrial environments, and improving the stability of the equipment.

[0055] Example 2 further optimizes the hydrogen sensor provided in Example 1, specifically, as follows: Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the mounting base 102 is further provided with a sliding groove 212, and the drive shaft 206 is provided with a strip groove 213;

[0056] Furthermore, the knob 207 is slidably disposed on the strip groove 213 and the sliding groove 212, and torsion spring 214 is provided on the corresponding surfaces of the mounting base 102 and the fixing plate 201;

[0057] When pin 101 and bump 202 need to be removed from external devices, the knob 207 is turned, which drives the push block 208 to release the pressure on the drive plate 204. At this time, the gear 203, rack 205 and drive plate 204 slide back to their original position through the elasticity of the second torsion spring 214. The elastic coefficient of the first torsion spring 209 is greater than that of the second torsion spring 214.

[0058] Furthermore, the mounting base 102 is provided with a connecting cavity 215, the connecting cavity 215 is provided with an inlet / outlet hole 216, and the pin 101 is provided with a limit block 217.

[0059] Furthermore, the limiting block 217 and the inlet / outlet hole 216 are mutually adapted, the pin 101 and the protrusion 202 are both slidably disposed on the fixed disk 201, and the pin 101 and the limiting block 217 are both slidably disposed in the connecting cavity 215.

[0060] When the drive knob 207 slides along the strip groove 213, the transmission post 211 on the knob 207 slides synchronously and disengages from the arc groove 210. At this time, the arc groove 210 releases its limit on the transmission post 211. Then, the drive knob 207 rotates 90 degrees. Similarly, the fixed plate 201 rotates 90 degrees. At this time, the inlet / outlet hole 216 and the limit block 217 coincide, and the pin 101 and the protrusion 202 are pulled out from the mounting base 102. At this time, the pin 101 and the limit block 217 disengage along the sliding point of the inlet / outlet hole 216 and the fixed plate 201. This method is suitable for replacing a single pin 101 when it is damaged. Compared with the prior art, when a single pin 101 is damaged, it is usually necessary to replace the entire sensor or the entire interface component, which is costly. This method reduces maintenance costs and improves maintenance efficiency.

[0061] Furthermore, a wedge-shaped part 218 is provided on the actuating block 208, and the wedge-shaped part 218 and the drive plate 204 are adapted to each other;

[0062] The wedge-shaped portion 218 reduces the friction between the jacking block 208 and the drive plate 204, preventing the jacking block 208 from getting stuck during rotation;

[0063] The synchronous adjustment mechanism 2 enables rapid replacement of a single pin 101, reducing maintenance costs and improving repair efficiency.

[0064] Example 3: A method for using a hydrogen sensor, comprising the following steps:

[0065] Step S1: By rotating knob 207, the drive shaft 206 and the actuating block 208 rotate synchronously. The actuating block 208 rotates and becomes parallel to the drive plate 204. The transmission column 211 on the actuating block 208 rotates synchronously and slides along the arc groove 210. At this time, the torsion spring 209 stores force, inserting pin 101 and protrusion 202 into the external device port. When pin 101 and protrusion 202 are fully inserted into the external device port, pin 101 is in contact with the elastic clip of the external device. The elastic clip is squeezed and stored by pin 101. When knob 207 is manually released... 7. Torsion spring 209 releases its elasticity, driving drive shaft 206, knob 207 and push block 208 to rotate in opposite directions. Push block 208 rotates in opposite directions and presses drive plate 204. Drive plate 204 drives rack 205 to slide. Rack 205 drives gear 203 to rotate. Gear 203 drives fixed disk 201 to rotate synchronously. Torsion spring 214 on fixed disk 201 stores force. Fixed disk 201 drives pin 101 and protrusion 202 to rotate synchronously. Protrusion 202 rotates and presses the elastic clip of external device, so that pin 101 and protrusion 202 are fixed on external device.

[0066] Step S2: When there is continuous external vibration, the torsion spring 209 continuously releases its elasticity. At this time, the rotation angle of the protrusion 202 gradually increases, and the deformation degree of the elastic clamp of the external device gradually increases. Through vibration self-locking, the clamping degree of the protrusion 202 and the elastic clamp increases according to the degree of vibration, so that the protrusion 202 and the elastic clamp are always in contact, ensuring continuous and accurate output of detection data.

[0067] Step S3: When a single pin 101 is damaged, the drive knob 207 slides along the strip groove 213. The transmission column 211 on the knob 207 slides synchronously and disengages from the arc groove 210. At this time, the arc groove 210 releases its limit on the transmission column 211. Then, the drive knob 207 rotates 90 degrees. Similarly, the fixed plate 201 rotates 90 degrees. At this time, the inlet / outlet hole 216 and the limiting block 217 coincide, and the pin 101 and the protrusion 202 are pulled out from the mounting base 102. At this time, the pin 101 and the limiting block 217 disengage along the sliding part of the inlet / outlet hole 216 and the fixed plate 201. At this time, the single pin 101 can be quickly replaced.

[0068] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0069] Obviously, the embodiments described above are merely some embodiments of the present invention, not all embodiments. The accompanying drawings show preferred embodiments of the present invention, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of 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 described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this invention.

Claims

1. A hydrogen sensor, comprising a housing (1) and pins (101) disposed on the housing (1), characterized in that, Includes a mounting base (102) disposed on the housing (1) and a synchronous adjustment mechanism (2) disposed on the mounting base (102); The synchronous adjustment mechanism (2) includes a fixed disk (201) rotatably mounted on the mounting base (102), a protrusion (202) mounted on the pin (101), a gear (203) mounted on the fixed disk (201), a drive plate (204) slidably mounted on the mounting base (102), a rack (205) mounted on the drive plate (204), a drive shaft (206) rotatably mounted on the mounting base (102), a knob (207) mounted on the drive shaft (206), a push block (208) mounted on the drive shaft (206), and a torsion spring (209) mounted on the push block (208) and the mounting base (102).

2. A hydrogen sensor according to claim 1, characterized in that, The pin (101) is rotatably mounted on the mounting base (102), the gear (203) and rack (205) are adapted to each other, the push block (208) is rotatably mounted on the mounting base (102), and the drive plate (204) and push block (208) are adapted to each other.

3. A hydrogen sensor according to claim 2, characterized in that, The mounting base (102) is provided with an arc-shaped groove (210), and the knob (207) is provided with a transmission column (211), which is slidably disposed on the arc-shaped groove (210).

4. A hydrogen sensor according to claim 3, characterized in that, The ends of the pin (101) and the bump (202) are both frustum-shaped.

5. A hydrogen sensor according to claim 4, characterized in that, The mounting base (102) is provided with a sliding groove (212), and the drive shaft (206) is provided with a strip groove (213).

6. A hydrogen sensor according to claim 5, characterized in that, The knob (207) is slidably disposed on the strip groove (213) and the sliding groove (212), and torsion springs (214) are disposed on the corresponding surfaces of the mounting base (102) and the fixing plate (201).

7. A hydrogen sensor according to claim 6, characterized in that, The mounting base (102) is provided with a connecting cavity (215), the connecting cavity (215) is provided with an inlet / outlet hole (216), and the pin (101) is provided with a limit block (217).

8. A hydrogen sensor according to claim 7, characterized in that, The limiting block (217) and the inlet / outlet hole (216) are adapted to each other. The pin (101) and the protrusion (202) are slidably disposed on the fixed plate (201). The pin (101) and the limiting block (217) are slidably disposed in the connecting cavity (215).

9. A hydrogen sensor according to claim 8, characterized in that, The top moving block (208) is provided with a wedge-shaped part (218), and the wedge-shaped part (218) and the drive plate (204) are adapted to each other.

10. A method of using a hydrogen sensor, comprising using a hydrogen sensor as described in claim 9, characterized in that, Includes the following steps: Step S1: By rotating the knob (207), the knob (207) drives the drive shaft (206) and the push block (208) to rotate synchronously. The push block (208) rotates and is parallel to the drive plate (204). The transmission column (211) on the push block (208) rotates synchronously and slides along the arc groove (210). At this time, the torsion spring (209) stores force, inserting the pin (101) and the protrusion (202) into the external device port. When the pin (101) and the protrusion (202) are fully inserted into the external device port, the pin (101) is in contact with the elastic clip of the external device. The elastic clip is squeezed and stored by the pin (101). When the knob (207) is manually released, the torsion spring (209) rotates synchronously. Spring 1 (209) releases its elasticity, and torsion spring 1 (209) drives drive shaft (206), knob (207) and push block (208) to rotate in opposite directions. Push block (208) rotates in opposite directions and presses drive plate (204). Drive plate (204) drives rack (205) to slide. Rack (205) drives gear (203) to rotate. Gear (203) drives fixed disk (201) to rotate synchronously. Torsion spring 2 (214) on fixed disk (201) stores force. Fixed disk (201) drives pin (101) and bump (202) to rotate synchronously. Bump (202) rotates and presses elastic clip of external device, so that pin (101) and bump (202) are fixed on external device. Step S2: When the external environment vibrates continuously, the torsion spring (209) continuously releases its elasticity. At this time, the rotation angle of the protrusion (202) gradually increases, and the deformation degree of the elastic clamp of the external device gradually increases. Through vibration self-locking, the clamping degree of the protrusion (202) and the elastic clamp increases according to the degree of vibration, so that the protrusion (202) and the elastic clamp are always in contact, ensuring continuous and accurate output of detection data. Step S3: When a single pin (101) is damaged, drive the knob (207) to slide along the strip groove (213). The transmission column (211) on the knob (207) slides synchronously and disengages from the arc groove (210). At this time, the arc groove (210) releases the limit on the transmission column (211). Then drive the knob (207) to rotate 90 degrees. Similarly, the fixed plate (201) rotates 90 degrees. At this time, the inlet / outlet hole (216) and the limit block (217) coincide. Pull the pin (101) and the protrusion (202) out of the mounting base (102). At this time, the pin (101) and the limit block (217) disengage along the sliding part of the inlet / outlet hole (216) and the fixed plate (201). At this time, the single pin (101) can be quickly replaced.

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