A sensor interface device

Abstract

The application discloses a sensor interface device, which comprises a transmission mechanism and a pressing mechanism. In an initial state, the pressing mechanism has a gap with the transmission mechanism to form a slot for inserting a sensor. Under the action of external force, the pressing mechanism drives the sensor in the slot to contact the transmission mechanism to realize the electrical connection between the sensor and the transmission mechanism. The application proposes a new design idea of the sensor interface and the matching interface device through the cooperation of the pressing mechanism and the transmission mechanism, and can realize the quick insertion and compression connection of the sensor.

Description

Technical Field

[0001] This application belongs to the field of sensor interface design technology, specifically relating to an interface device that can be used for thin-film pressure sensors. Background Technology

[0002] Currently, most thin-film sensor interfaces use standard 0.5mm FPC connectors, and the corresponding interface devices also adopt designs compatible with FPC connectors. However, FPC connectors themselves have a very low reliable mating lifespan, and the mating operation requires very careful alignment, making it easy to reverse or connect them incorrectly. Summary of the Invention

[0003] To address the issues of poor reliability and short lifespan of existing thin-film pressure sensors using FPC connectors, this invention provides a sensor interface device, the specific technical solution of which is as follows.

[0004] A sensor interface device mainly includes a transmission mechanism and a pressing mechanism. The pressing mechanism is configured such that, in its initial state, it has a certain gap with the transmission mechanism to form a slot for inserting a sensor. Under the action of external force, the sensor in the slot is brought into contact with the transmission mechanism to achieve an electrical connection between the sensor and the transmission mechanism. Through the cooperation of the pressing mechanism and the transmission mechanism, a new design concept for a sensor interface and its matching interface device is proposed, which enables rapid insertion and clamping connection of the sensor.

[0005] As a preferred embodiment, the pressure applying mechanism is configured with a rotating component and a mating component, wherein one of the opposing surfaces of the rotating component and the mating component has a first inclined surface, and the other surface has a mating portion that mates with the first inclined surface;

[0006] The pressure-applying mechanism is further configured such that, under the action of an external force, the rotation of the rotating component causes relative movement between the first inclined surface and the mating part, prompting the mating part to move closer to the transmission mechanism, thereby bringing the sensor into contact with the transmission mechanism. By designing an inclined surface structure in the rotating component or the mating part, the rotating component effectively pushes the mating part towards the transmission mechanism while rotating.

[0007] As a preferred embodiment, the mating part is a second inclined surface with the same inclination angle as the first inclined surface. Through the mating design of the upper and lower inclined surfaces, surface contact is formed between them, allowing the mating part to be moved towards the transmission mechanism with relatively small applied force.

[0008] As a preferred embodiment, the mating part has a structure that forms point contact or line contact with the first inclined surface. Similarly, a structure that forms point contact or line contact with the inclined surface can also achieve the effect of pushing the mating part towards the transmission mechanism.

[0009] As a preferred embodiment, the rotating component and the mating component have at least two sets of first inclined surfaces and mating portions for cooperative use, and the first inclined surfaces are arranged centrally symmetrically on the rotating component or the mating component. This centrally symmetrical arrangement makes the overall force distribution more uniform and the balance better.

[0010] As a preferred embodiment, the outer periphery of the rotating component is further provided with a positioning block, and the outer periphery of the mating component is further provided with a first limiting portion and a second limiting portion, which define an active area. When the rotating component rotates, the positioning block moves within the active area to limit the rotation angle of the rotating component. This limiting structure design effectively limits the rotation angle, facilitating user operation and improving the user experience.

[0011] As a preferred embodiment, the pressure applying mechanism further includes a knob, an upper support plate, and a lower support plate. The lower support plate is correspondingly arranged with the transmission mechanism. The rotating component and the mating component are arranged between the upper and lower support plates, and the mating component is fixedly connected to the lower support plate. The rotating component has a connecting shaft on its side facing away from the mating component. The upper support plate has a through-shaft hole, and the knob has a first mounting hole. The connecting shaft of the rotating component passes through the through-shaft hole of the upper support plate and connects to the first mounting hole of the knob. Rotating the knob drives the rotating component to rotate, which in turn drives the lower support plate to move closer to the transmission mechanism via the mating component. This arrangement makes the overall structure of the pressure applying mechanism more compact and efficient.

[0012] As a preferred embodiment, the upper support plate is provided with a second mounting hole, and an elastic element is installed in the second mounting hole; the rotating component is provided with a first groove, a second groove, and a positioning ball; in the initial state, the second mounting hole corresponds to the first groove, and the positioning ball is located in the first groove and abuts against the elastic element in the second mounting hole; when the rotating component rotates, it drives the positioning ball to disengage from the first groove and rotates the positioning ball; when the rotating component rotates to a set position, the positioning ball rotates into the second groove and abuts against the elastic element in the second mounting hole. The above components constitute a positioning mechanism. Through the design of the positioning mechanism, the shaking of the knob within the rotation angle range can be avoided, ensuring the stability of the sensor and the transmission mechanism.

[0013] As a preferred embodiment, the sensor interface device further includes a reset mechanism, which comprises a spring and a fastener, with the spring sleeved on the fastener. The upper support plate has a through hole, and the lower support plate has a threaded hole corresponding to the through hole that mates with the fastener. The fastener passes through the through hole and connects to the threaded hole, and the spring is clamped between the upper support plate and the fastener. When the lower support plate moves toward the transmission mechanism, it causes the fastener to move away from the upper support plate, and the spring is compressed and deformed. When the spring resets, it causes the lower support plate to move the mating component toward the upper support plate.

[0014] As a preferred embodiment, the slot is also provided with a foolproof mechanism adapted to the sensor, which is used to indicate whether the sensor insertion operation is correct.

[0015] As a preferred embodiment, the foolproof mechanism is a retaining ring arranged on one side of the slot opening, and the sensor has a chamfer at the corresponding position; when the sensor is inserted into the slot, the chamfer of the sensor pushes the retaining ring, causing the retaining ring to retract, so that the sensor enters the slot.

[0016] As a preferred embodiment, the transmission mechanism includes a substrate and elastic metal pins arranged on the substrate, the arrangement of which is adapted to the signal contacts of the sensor; under the action of external force, the pressure mechanism drives the signal contacts of the sensor in the slot to contact the elastic metal pins to achieve an electrical connection between the sensor and the transmission mechanism.

[0017] Beneficial effects: This invention achieves rapid insertion and stable connection of the sensor through the combined action of the pressure application mechanism and the transmission mechanism. Furthermore, the invention incorporates a foolproof design to prevent incorrect insertion of the sensor interface, ensuring that the sensor is not inserted in the wrong orientation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the external structure of the sensor interface device.

[0019] Figure 2 An exploded view of the sensor interface device;

[0020] Figure 3 Schematic diagram of rotating and mating parts Figure 1 ;

[0021] Figure 4 Schematic diagram of rotating and mating parts Figure 2 ;

[0022] Figure 5 Schematic diagram of rotating and mating parts Figure 3 ;

[0023] Figure 6 (a) is a schematic diagram of the sensor not being inserted; (b) is a schematic diagram of the sensor being inserted.

[0024] Figure 7 This is a schematic diagram of a snap ring structure;

[0025] Figure 8 This is a schematic diagram of the sensor structure. Detailed Implementation

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings and specific examples. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0027] Combination Figure 1 and Figure 7 As shown, an embodiment discloses a sensor interface device for use with a thin-film pressure sensor, which includes a transmission mechanism and a pressure application mechanism. The pressure application mechanism is configured such that, in the initial state, it has a certain gap with the transmission mechanism to form a slot for inserting a sensor; under the action of an external force, it drives the sensor in the slot to contact the transmission mechanism to achieve an electrical connection between the sensor and the transmission mechanism.

[0028] Specifically, the pressure-applying mechanism mainly comprises a housing 11, a knob 12, a fastener 13, an upper support plate 14, a lower support plate 15, a rotating component 17, and a mating component 18. The fastener 13, upper support plate 14, lower support plate 15, rotating component 17, and mating component 18 are all housed inside the housing 11 for protection, while the knob 12 is located outside the housing 11 for user control. The upper support plate 14 is fixedly connected to the housing 11, and the lower support plate 15 is connected to the upper support plate 14 via the fastener 13. The rotating component 17 and the mating component 18 are clamped between the upper support plate 14 and the lower support plate 15, with the rotating component 17 positioned closer to the upper support plate 14 and the mating component 18 positioned closer to the lower support plate 15. The rotating component 17 is connected to the knob 12 so that rotating the knob 12 drives the rotating component 17 to rotate.

[0029] The transmission mechanism mainly consists of a base plate 20 and elastic metal pins 16. An array of elastic metal pins 16 is arranged on the base plate 20 and fixedly connected to the bottom of the housing 11 through the base plate 20. The elastic metal pins 16 are arranged directly below the lower support plate 15 and maintain a certain initial gap with the lower support plate 15 to form a sensor slot 30.

[0030] The rotating component 17 is further provided with a connecting shaft 171, and the upper support plate 14 is further provided with a shaft hole 141 corresponding to the position of the connecting shaft 171, which is in cooperation with the connecting shaft 171 (the connecting shaft 171 and the shaft hole 141 can be an overfit or a clearance fit, preferably an overfit). The knob 12 is further provided with a mounting hole (not shown) that is in cooperation with the connecting shaft 171. The connecting shaft 171 of the rotating component 17 passes through the shaft hole 141 and is connected to the mounting hole of the knob 12. In this way, when the knob 12 is rotated, the rotating component 17 will also rotate.

[0031] Furthermore, one of the opposing surfaces of the rotating member 17 and the mating member 18 has a first inclined surface, and the other surface has a mating portion that engages with the first inclined surface. The pressure applying mechanism is also configured such that, under the action of an external force, the rotation of the rotating member 17 causes relative movement between the first inclined surface and the mating portion, causing the mating member 18 to move closer to the transmission mechanism, thereby bringing the sensor into contact with the transmission mechanism.

[0032] For specific details, please refer to... Figure 2 and Figure 3In one embodiment, a first inclined surface 181 is disposed on the mating member 18, and a mating portion 172 is disposed on the rotating member 17. More specifically, the mating portion 172 is disposed on the side of the rotating member 17 facing away from the connecting shaft 171 and in contact with the first inclined surface 181. Under the action of external force, the mating portion 172 rotates relative to the first inclined surface 181, thereby pushing the mating member 18 to move the lower support plate 15 downward. More specifically, the mating portion 172 is a second inclined surface with the same inclination angle as the first inclined surface 181, that is, the angles between the two with the horizontal plane are equal, so that the mating portion 172 and the first inclined surface 181 can fit together completely, forming a surface contact, which is more conducive to pushing. When the mating portion 172 rotates on the first inclined surface 181, it will push the mating member 18 to move away from the rotating member 17. Since the mating member 18 is connected to the lower support plate 15, the moving mating member 18 will drive the lower support plate 15 to move, thereby changing the distance between the lower support plate 15 and the elastic metal needle 16. More preferably, the rotating member 17 can be a disc structure. The side of the rotating member 17 facing away from the connecting shaft 171 has at least two sets of mating portions 172 and a fan-shaped plane. The two sets of mating portions 172 and the fan-shaped plane are arranged alternately around the circumference, forming a centrally symmetrical arrangement. The lowest point of the mating portion 172 is flush with the fan-shaped plane, and the highest point of the mating portion 172 forms a step with the fan-shaped plane. Correspondingly, the mating member 18 is also a disc structure, similarly having at least two sets of first inclined surfaces 181 and fan-shaped planes. The two sets of first inclined surfaces 181 and the fan-shaped plane are arranged alternately around the circumference, forming a centrally symmetrical arrangement. The highest point of the first inclined surface 181 is flush with the fan-shaped plane, and the lowest point of the first inclined surface 181 forms a step with the fan-shaped plane. Through this centrally symmetrical arrangement, the force exerted by the rotating member 17 on the mating member 18 will be more balanced, and the mating member 18 can be pushed to move the lower support plate 15 with a smaller force.

[0033] like Figure 4 As shown, in another embodiment, the arrangement of the rotating member 17 and the mating member 18 is consistent with... Figure 3 The corresponding embodiments are largely the same, with the main difference being that the first inclined surface is disposed on the rotating member 17, the mating member 18 is generally a planar structure, and the mating portion 182 is disposed on the side of the mating member 18 opposite to the first inclined surface 172. The mating portion 182 adopts a block-shaped, protruding, or strip-shaped design, for example, a mating block, a spherical mating protrusion, or a mating strip. The first inclined surface 172 forms point contact with the mating block or the spherical mating protrusion, or a line contact with the mating strip, and rotates relative to the mating portion 182, thereby pushing the mating member 18 to move through the rotating member 17, thereby driving the lower support plate 15 to move.

[0034] like Figure 5 As shown, in another embodiment, the arrangement of the rotating member 17 and the mating member 18 is consistent with... Figure 4The corresponding embodiment has the opposite design, that is, the first inclined surface is provided on the mating member 18, the rotating member 17 is generally a planar structure, and the mating part 176 is provided on the side of the rotating member 17 opposite to the first inclined surface 183. The mating part 176 forms point contact or line contact with the first inclined surface 183 and rotates relative to the first inclined surface 183, thereby pushing the mating member 18 to move through the rotating member 17, thereby driving the lower support plate 15 to move.

[0035] Furthermore, to limit the rotation range of the rotating member 17, a positioning block 175 is provided on the outer periphery of the rotating member 17, and a first limiting part 151 and a second limiting part 152 are provided on the outer periphery of the mating member 18. The first limiting part 151 and the second limiting part 152 define an active area. When the rotating member 17 rotates, the positioning block 175 moves within the active area to limit the rotation angle of the rotating member 17. Of course, the positioning block 175 can also be provided inside the rotating member 17, and the first limiting part 151 and the second limiting part 152 can also be provided inside the mating member 18, as long as the movement range of the positioning block 175 can be limited by the first limiting part 151 and the second limiting part 152.

[0036] Please see Figure 2 Furthermore, the sensor interface device also includes a reset mechanism, which comprises a spring 131 and the aforementioned fastener 13. The fastener 13 primarily connects the upper support plate 14 and the lower support plate 15, and causes the interface device to reset. Specifically, the upper support plate 14 has a through hole, and the lower support plate 15 has a threaded hole corresponding to the through hole, which mates with the fastener 13. The fastener 13 passes through the through hole and connects to the threaded hole, and the spring 131 is sleeved on the fastener 13 and clamped between the upper support plate 14 and the fastener 13. When the lower support plate 15 moves away from the upper support plate 14, the lower support plate 15 drives the fastener 13 to move downwards. Since the upper support plate 14 remains stationary, the spring 131 clamped between the upper support plate 14 and the fastener 13 is compressed. During reset, when the lower support plate 15 moves closer to the upper support plate 14, the lower support plate 15 drives the fastener 13 to move upwards. At this time, the compressed spring 131 provides an upward restoring force to make the movement of the lower support plate 15 smoother. It should be noted that the fastener 13 and spring 131 used here are also equivalent to a reset mechanism, mainly used to reset the lower support plate 15 after it moves downwards. Of course, the reset mechanism can also adopt other structural forms and is not limited to this.

[0037] Please combine Figure 2 and Figure 6To limit the knob 12 from rotating when not in use, a positioning mechanism is further provided. Specifically, the upper support plate 14 is further provided with a mounting hole 142, and an elastic element 143 is installed in the mounting hole 14. The elastic element 143 can be replaced by a spring, a sheet, or other elastic element. The rotating component is further provided with a first groove 173 and a second groove 173 corresponding to the position of the mounting hole 142. A positioning ball 174 that cooperates with the groove is provided in either groove 173. In the initial state, the mounting hole 142 is set corresponding to the first groove, and the positioning ball is located in the first groove and abuts against the elastic element in the mounting hole 142. When the knob 12 is rotated, it will drive the rotating component 17 to rotate. The rotating component 17 will cause the positioning ball 174 to disengage from the first groove 173 and drive the positioning ball 174 to rotate. When the rotating component 17 rotates to the set position, the positioning ball 174 rotates into the second groove 173 and abuts against the elastic element in the mounting hole 142 to achieve positioning. Preferably, when the positioning ball 174 rotates from the first groove 173 to the second groove 173, the positioning block 175 rotates from the first limiting part 151 to the second limiting part 152, so as to ensure that the lower support plate 15 moves exactly the set distance after the knob 12 is rotated to the position.

[0038] Furthermore, the sensor interface device slot 30 is also equipped with a foolproof mechanism adapted to the sensor, which is used to indicate whether the sensor insertion operation is correct. Specifically, in this embodiment, the foolproof mechanism is implemented using a snap ring. Figure 7 As shown, the retaining ring 19 can be fixed to one side of the slot 30 opening, mainly used to indicate whether the sensor 3 is inserted correctly, thus achieving a foolproof function. Correspondingly, a chamfer 31 of approximately 3mm is designed on one side of the end of the sensor 3. When the sensor 3 is correctly inserted, the chamfer 31 on the sensor 3 touches the retaining ring 19, and as the user pushes the sensor 3, a component force along its elastic deformation direction is applied to the retaining ring 19, causing the retaining ring 19 to elastically contract. At this time, the sensor 3 can smoothly enter the slot 30. Conversely, if the insertion direction is incorrect, the retaining ring 19 cannot provide an elastic force, and the retaining ring 19 will not contract, thus preventing the sensor 3 from entering the slot 30, prompting the user to reverse the insertion direction and reinsert the sensor 3, thereby achieving the foolproof function and preventing incorrect insertion. This chamfer design is a relatively simple and easy-to-operate foolproof design method. Of course, other structures can also be used, as long as the foolproof function is achieved; it is not limited to this.

[0039] Combination Figure 8As shown, in one embodiment, the sensor 3 used in conjunction with the sensor interface device has signal contacts 31 at its interface. Specifically, the signal contacts 31 can be a circular array of gold-plated copper signal contacts. The signal contacts 31 contact the elastic metal pins 16 of the sensor interface device to achieve analog circuit signal transmission. The shape of the sensor 3 interface can be customized as needed, as long as it matches the slot 30 in the sensor interface device.

[0040] Furthermore, the present invention does not impose specific limitations on the initial distance between the lower support plate 15 and the elastic metal pin 16; the initial distance between the lower support plate 15 and the elastic metal pin 16 can be adjusted according to specific usage conditions. To ensure close contact between the signal contact 31 on the sensor 3 and the elastic metal pin 16 of the sensor interface device, in this embodiment of the invention, the distance by which the lower support plate 15 moves the sensor within the slot is greater than the initial distance between the lower support plate 15 and the elastic metal pin 16; that is, the distance by which the rotating member 17 moves the mating member 18 is greater than the initial distance between the lower support plate 15 and the elastic metal pin 16. Thus, when the rotating component 17 moves the mating component 18, the mating component 18 moves the lower support plate 15 closer to the elastic metal needle 16. Since the distance the rotating component 17 moves the mating component 18 is greater than the initial distance between the lower support plate 15 and the elastic metal needle 16, the lower support plate 15 will continue to move closer to the elastic metal needle 16 after the sensor 3 comes into contact with it. At this time, the elastic metal needle 16 is compressed, and the sensor 3 is precisely clamped between the elastic metal needle 16 and the lower support plate 15, thereby ensuring that the signal contact 31 on the sensor 3 is in close contact with the elastic metal needle 16 of the sensor interface device. At the same time, the elastic metal needle 16 can elastically contract when subjected to force, thereby preventing damage to the elastic metal needle 16 caused by force.

[0041] The method of using the sensor interface device disclosed in the above embodiments is as follows:

[0042] The sensor is inserted from the slot 30 between the lower support plate 15 and the elastic metal pin 16. The signal contact 31 of the sensor faces downward. At this time, the signal contact 31 corresponds one-to-one with the elastic metal pin 16 at the bottom, and there is a gap of about 1mm between them.

[0043] Rotating knob 12 allows for setting the rotation angle (preferably 90 degrees). Knob 12 drives rotating component 17 to rotate, pushing mating component 18 downwards, which in turn moves lower support plate 15 and sensor downwards by about 2mm. Signal contact 31 of sensor 3 comes into contact with elastic metal needle 16, and elastic metal needle 16 undergoes elastic deformation, thereby ensuring good contact and conduction between signal contact 31 of sensor 3 and elastic metal needle 16, thus enabling the sensor to connect to the circuit through the transmission mechanism. At this time, spring 131 sleeved on fastener 13 deforms and compresses due to the separation of upper and lower support plates 15.

[0044] When removing sensor 3, rotate knob 12 in the opposite direction (preferably 90 degrees). The spring 131 on fastener 13 exerts a force on fastener 13 and pulls the support plate 15 upward through fastener 13. At this time, the signal contact 31 on the sensor is disengaged from the spring pin, sensor 3 is disconnected from the circuit, and sensor 3 can be easily pulled out.

[0045] In summary, the technical solution disclosed in this invention effectively solves the shortcomings of existing sensors using FPC connectors, such as low lifespan, inconvenient operation, and susceptibility to misalignment. The sensor only needs to be inserted into the slot of the sensing interface device, and rotating the knob achieves electrical connection between the sensor and the transmission mechanism, leading to rapid connection with the circuit, eliminating the need for precise alignment. Furthermore, the error-proof mechanism effectively prompts the user to reverse the insertion direction if it is incorrect, preventing misalignment.

[0046] Finally, it should be noted that although the embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention is not limited to the specific embodiments and application fields described above. The specific embodiments described above are merely illustrative and instructive, and not restrictive. Those skilled in the art, guided by this specification, can make many other forms without departing from the scope of protection of the claims of the present invention, and all of these are within the scope of protection of the present invention.

Claims

1. A sensor interface device, characterized in that, Includes a transmission mechanism and a pressure application mechanism; The pressure-applying mechanism is configured such that, in the initial state, it has a certain gap with the transmission mechanism to form a slot for inserting a sensor; under the action of external force, it drives the sensor in the slot to contact the transmission mechanism to achieve an electrical connection between the sensor and the transmission mechanism. The pressure-applying mechanism is equipped with a rotating component and a mating component. One of the opposing surfaces of the rotating component and the mating component has a first inclined surface, and the other surface has a mating part that mates with the first inclined surface. The transmission mechanism includes a substrate and elastic metal pins arranged on the substrate, the arrangement of which is adapted to the signal contacts of the sensor. The pressure application mechanism is also configured such that, under the action of external force, the rotation of the rotating member causes the first inclined surface and the mating part to move relative to each other, causing the mating member to move closer to the transmission mechanism, thereby driving the signal contact of the sensor in the slot to contact the elastic metal needle, so as to realize the electrical connection between the sensor and the transmission mechanism. The mating part is a second inclined surface with the same inclination angle as the first inclined surface; or, the mating part is a structure that forms point contact or line contact with the first inclined surface.

2. The sensor interface device as described in claim 1, characterized in that, The rotating component and the mating component have at least two sets of first inclined surfaces and mating portions for use in cooperation, and the first inclined surfaces are arranged in a centrally symmetrical manner on the rotating component or the mating component.

3. The sensor interface device as described in any one of claims 1-2, characterized in that, The outer periphery of the rotating component is further provided with a positioning block, and the outer periphery of the mating component is further provided with a first limiting part and a second limiting part, the first limiting part and the second limiting part defining an active area; when the rotating component rotates, the positioning block moves within the active area to limit the rotation angle of the rotating component.

4. The sensor interface device as described in any one of claims 1-2, characterized in that, The pressure application mechanism also includes a knob, an upper support plate, and a lower support plate; the lower support plate is correspondingly arranged with the transmission mechanism, the rotating part and the mating part are arranged between the upper support plate and the lower support plate, and the mating part is fixedly connected to the lower support plate; The rotating component has a connecting shaft on the side facing away from the mating component. The upper support plate has a through-shaft hole, and the knob has a first mounting hole. The connecting shaft of the rotating component passes through the through-shaft hole of the upper support plate and connects to the first mounting hole of the knob. By rotating the knob, the rotating component is driven to rotate, and then the lower support plate is driven to move closer to the transmission mechanism through the mating component.

5. The sensor interface device as described in claim 4, characterized in that, The upper support plate is provided with a second mounting hole, and an elastic element is installed in the second mounting hole; the rotating element is provided with a first groove, a second groove, and a positioning ball; in the initial state, the second mounting hole is correspondingly set with the first groove, the positioning ball is located in the first groove and abuts against the elastic element in the second mounting hole; when the rotating element rotates, it drives the positioning ball to disengage from the first groove and drives the positioning ball to rotate; when the rotating element rotates to a set position, the positioning ball rotates into the second groove and abuts against the elastic element in the second mounting hole.

6. The sensor interface device as described in claim 4, characterized in that, It also includes a reset mechanism, which comprises a spring and a fastener, with the spring sleeved on the fastener; the upper support plate has a through hole, and the lower support plate has a threaded hole corresponding to the through hole that mates with the fastener; the fastener passes through the through hole and connects to the threaded hole, and the spring is clamped between the upper support plate and the fastener; when the lower support plate moves toward the transmission mechanism, the lower support plate drives the fastener to move away from the upper support plate, and the spring is compressed and deformed; when the spring resets, it causes the lower support plate to drive the mating part to move toward the upper support plate.

7. The sensor interface device as described in any one of claims 1-2, characterized in that, The slot is also equipped with a foolproof mechanism adapted to the sensor, which is used to indicate whether the sensor insertion operation is correct.

8. The sensor interface device as described in claim 7, characterized in that, The foolproof mechanism is a retaining spring arranged on one side of the slot opening, and the sensor has a chamfer at the corresponding position; when the sensor is inserted into the slot, the chamfer of the sensor pushes the retaining spring to retract the retaining spring so that the sensor enters the slot.

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