High-sensitivity annular proximity sensor

Abstract

The utility model relates to the field of proximity sensors, and discloses a high-sensitivity annular proximity sensor. According to the sensor, a clamping spring is connected between the mounting disc and the inner wall of the sensor shell in a sleeving mode, a connecting rod is fixedly mounted on the surface of the mounting disc, a clamping fixing head is arranged at the tail end of the connecting rod, the clamping fixing head is clamped to the outer wall of the sensor body, and a fixing locking device is arranged at the end, located outside the sensor shell, of a fixing spring clamping rod. After the sensor body is inserted into the sensor outer shell, the fixing spring clamping rod is loosened, the clamping fixing head can clamp and fix the sensor body under the elastic force effect of the clamping spring, then the fixing screw rod is screwed again, the fixing spring clamping rod is locked and fixed, and fixing of the sensor body can be completed. Therefore, the sensor body is prevented from being directly screwed and extruded by the screw, the protectiveness of the sensor body is improved, and the damage probability of the sensor body is reduced.

Description

Technical Field

[0001] This application belongs to the field of proximity sensor technology, specifically a high-sensitivity ring proximity sensor. Background Technology

[0002] A proximity sensor is a sensor that detects the proximity of an object using principles such as electromagnetic fields, photoelectric effects, and ultrasonic waves. It is widely used in automation control, position detection, and counting. It can accurately detect the presence and position of an object without contacting it. Based on different detection principles, proximity sensors can be classified into inductive, capacitive, photoelectric, and ultrasonic types. They offer advantages such as fast response speed, high accuracy, strong anti-interference capability, and long lifespan. In industrial automated production lines, proximity sensors effectively improve production efficiency, reduce production costs, and ensure production safety, making them an indispensable component of modern industrial production.

[0003] For example, application CN209590288U discloses a high-precision proximity sensor, including a fixed plate, an annular cooling tank, and a housing. The top two sides of the fixed plate are respectively engaged with the bottom of two clamping heads via slots, and the two clamping heads are respectively located on both sides of the bottom of the housing. The annular cooling tank is fitted onto the outside of the housing, and a base plate is fixedly installed at the bottom of the housing. A circular groove is formed on one side of the base plate, and the inner wall of the circular groove is rotatably connected to the outer wall of a rotating tube. The two sides of the housing are respectively threaded to the middle of two threaded shafts. This utility model discloses a high-precision proximity sensor, in which the proximity sensor is located inside the housing, and the annular cooling tank is located outside the housing, contacting the proximity sensor through several heat transfer plates. When the device overheats, the heat is transferred to the interior of the annular cooling tank for cooling, assisting the device in heat dissipation, further extending the device's service life, and improving the device's performance.

[0004] However, the sensor fixing process in this application requires fixing by screwing on a threaded shaft. During the screwing process, manual screwing may cause excessive pressure on the sensor surface, which may damage the sensor and affect the safety of the sensor during the overall use. Utility Model Content

[0005] The purpose of this application is to provide a high-sensitivity ring proximity sensor in order to solve the problems mentioned above.

[0006] The technical solution adopted in this application is as follows: A high-sensitivity ring proximity sensor includes a sensor housing, a sensor body is disposed inside the sensor housing, and external fixing boxes are disposed at both ends of the sensor housing. A fixing spring clip is inserted into the internal of the external fixing box, and the fixing spring clip is inserted through the inner wall of the sensor housing. A mounting plate is disposed at one end of the fixing spring clip inside the sensor housing. A snap-fit ​​spring is sleeved between the mounting plate and the inner wall of the sensor housing. A connecting rod is fixedly mounted on the surface of the mounting plate. A snap-fit ​​fixing head is disposed at the end of the connecting rod and is clamped to the outer wall of the sensor body. A fixing locking device is disposed at one end of the fixing spring clip outside the sensor housing.

[0007] By adopting the above technical solution, in the process of fixing the sensor body, the fixing screw is first unscrewed from the inside of the external fixing box, and then the fixing spring clip is pulled outward. After inserting the sensor body into the inside of the sensor housing, the fixing spring clip is released, and the locking head will clamp and fix the sensor body under the elastic force of the locking spring. Then, the fixing screw is screwed back on to lock the fixing spring clip, thus completing the fixing of the sensor body. This avoids the sensor body being directly squeezed by the screw, improves the protection of the sensor body, and reduces the probability of damage to the sensor body.

[0008] In a preferred embodiment, the fixing locking device includes a fixing screw, a screw head, and an abutment strip. The fixing screw is threaded to the side wall of the external fixing box. The side wall of the fixing spring clip is provided with an abutment strip, and the fixing screw abuts against the surface of the abutment strip. The screw head is fixedly connected to one end of the fixing screw located outside the external fixing box.

[0009] By adopting the above technical solution, the fixed spring clip can be locked in place, preventing it from loosening and improving its stability during use.

[0010] In a preferred embodiment, an external handle is fixedly installed at one end of the fixed spring lever located outside the sensor housing.

[0011] By adopting the above technical solution, it is easy to pull out the fixed spring clip.

[0012] In a preferred embodiment, a heat dissipation device is provided inside the sensor housing, and one end of the heat dissipation device is connected to a heat dissipation cooling box.

[0013] By adopting the above technical solution, heat dissipation of the sensor body is facilitated, and safety during use is improved.

[0014] In a preferred embodiment, a functional base plate is installed at the bottom of the sensor housing, and a plurality of wire-passing grooves are opened through the interior of the functional base plate, with flame-retardant pads fixedly installed on the inner walls of the wire-passing grooves.

[0015] By adopting the above technical solution, the cable tray can be used to place data cables, while the flame-retardant pad can prevent the heat generated by the data cables from being insulated, thus improving the overall safety during use.

[0016] In a preferred embodiment, mounting side plates are fixedly installed at both ends of the functional base plate, and the surface of the mounting side plates is provided with a plurality of mounting holes.

[0017] By adopting the above technical solution, it is easy to fix the functional base plate and the sensor housing as a whole.

[0018] In a preferred embodiment, the top of the heat dissipation and cooling box is provided with a liquid inlet, and the lower surface of the heat dissipation and cooling box is provided with a liquid outlet.

[0019] By adopting the above technical solution, it is easier to circulate the coolant, thereby increasing the heat dissipation efficiency during use.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0021] In this application, during the process of fixing the sensor body, the fixing screw is first unscrewed from the inside of the external fixing box, and then the fixing spring clip is pulled outward. After inserting the sensor body into the inside of the sensor housing, the fixing spring clip is released, and the locking head will clamp and fix the sensor body under the elastic force of the locking spring. Then, the fixing screw is screwed back on to lock the fixing spring clip, thus completing the fixing of the sensor body. This avoids the sensor body being directly squeezed by the screw, improves the protection of the sensor body, and reduces the probability of damage to the sensor body. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the sensor structure in this application;

[0023] Figure 2 This is a schematic diagram of the internal structure of the sensor housing in this application;

[0024] Figure 3 For this application Figure 1 Enlarged view of point A in the middle;

[0025] Figure 4 This is a schematic diagram of the functional base plate structure in this application.

[0026] The markings in the diagram are: 1. Sensor housing; 2. Sensor body; 3. Functional base plate; 4. Heat dissipation and cooling box; 5. Wiring channel; 6. Fixing spring clip; 7. Mounting plate; 8. Snap-fit ​​spring; 9. Connecting rod; 10. Snap-fit ​​fixing head; 11. External fixing box; 12. Fixing screw; 13. Tightening head; 14. Abutment strip; 15. External handle; 16. Flame retardant pad; 17. Mounting side plate. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] Reference Figure 1-4 ,

[0029] Example:

[0030] A high-sensitivity ring proximity sensor includes a sensor housing 1, a sensor body 2 disposed inside the sensor housing 1, and external fixing boxes 11 disposed at both ends of the sensor housing 1. A fixing spring lever 6 is inserted into the internal part of the external fixing box 11 and penetrates the inner wall of the sensor housing 1. A mounting plate 7 is disposed at one end of the fixing spring lever 6 inside the sensor housing 1. A locking spring 8 is sleeved between the mounting plate 7 and the inner wall of the sensor housing 1. A connecting rod 9 is fixedly mounted on the surface of the mounting plate 7. A locking head 10 is disposed at the end of the connecting rod 9 and clamps the locking head 10 to the outer wall of the sensor body 2. The fixing spring lever 6 is located at the inner wall of the sensor housing 1. One end of the sensor body is equipped with a locking device. During the process of fixing the sensor body 2, the fixing screw 12 is first unscrewed from the inside of the external fixing box 11, and then the fixing spring clip 6 is pulled outward. After inserting the sensor body 2 into the inside of the sensor housing 1, the fixing spring clip 6 is released. The locking head 10 will clamp and fix the sensor body 2 under the elastic force of the locking spring 8. Then, the fixing screw 12 is screwed back on to lock the fixing spring clip 6, thus completing the fixing of the sensor body 2. This avoids the sensor body 2 being directly squeezed by the screw, improves the protection of the sensor body 2, and reduces the chance of damage to the sensor body 2.

[0031] The fixing locking device includes a fixing screw 12, a screw head 13, and an abutment strip 14. The fixing screw 12 is threaded to the side wall of the external fixing box 11. The side wall of the fixing spring clip 6 is provided with an abutment strip 14, and the fixing screw 12 abuts against the surface of the abutment strip 14. The screw head 13 is fixedly connected to one end of the fixing screw 12 located outside the external fixing box 11, thereby locking the fixing spring clip 6 to prevent it from loosening and improving its stability during use.

[0032] An external handle 15 is fixedly installed at one end of the fixed spring clip 6 located outside the sensor housing 1, which facilitates pulling the fixed spring clip 6.

[0033] The sensor housing 1 is equipped with a heat dissipation device inside, and one end of the heat dissipation device is connected to a heat dissipation cooling box 4, which facilitates heat dissipation of the sensor body 2 and improves safety during use.

[0034] A functional base plate 3 is installed at the bottom of the sensor housing 1. Multiple wire-passing grooves 5 are opened through the interior of the functional base plate 3. A flame-retardant pad 16 is fixedly installed on the inner wall of the wire-passing groove 5. The wire-passing groove 5 can be used to place data cables, while the flame-retardant pad 16 can prevent the heat generated by the data cables from being isolated, thus improving the overall safety during use.

[0035] The functional base plate 3 is fixedly mounted with mounting side plates 17 at both ends. The surface of the mounting side plates 17 has multiple mounting holes, which facilitates the overall fixing of the functional base plate 3 and the sensor housing 1.

[0036] The top of the heat dissipation and cooling box 4 is provided with a liquid filling port, and the bottom surface of the heat dissipation and cooling box 4 is provided with a liquid drain port, which facilitates the circulation of coolant and increases the heat dissipation efficiency during use.

[0037] The implementation principle of a high-sensitivity ring proximity sensor embodiment of this application is as follows: During use, in the process of fixing the sensor body 2, first unscrew the fixing screw 12 from the inside of the external fixing box 11, then pull out the fixing spring clip 6, insert the sensor body 2 into the inside of the sensor housing 1, and then release the fixing spring clip 6. The locking fixing head 10 will clamp and fix the sensor body 2 under the elastic force of the locking spring 8. Then, screw the fixing screw 12 again to lock the fixing spring clip 6, thus completing the fixing of the sensor body 2. This avoids the sensor body 2 being directly squeezed by the screw, improves the protection of the sensor body 2, and reduces the probability of damage to the sensor body 2.

[0038] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A high sensitivity ring proximity sensor comprising a sensor outer housing (1) characterised in that: The inside of the sensor outer shell body (1) is provided with a sensor body (2), both ends of the sensor outer shell body (1) are provided with an external fixing box (11), the inside of the external fixing box (11) is inserted with a fixed spring clamping rod (6), and the fixed spring clamping rod (6) penetrates and is inserted into the inner wall of the sensor outer shell body (1), one end of the fixed spring clamping rod (6) located in the inside of the sensor outer shell body (1) is provided with a mounting disc (7), the mounting disc (7) and the inner wall of the sensor outer shell body (1) are sleeved with a clamping spring (8), the surface of the mounting disc (7) is fixedly installed with a connecting rod (9), the distal end of the connecting rod (9) is provided with a clamping fixing head (10), and the clamping fixing head (10) is clamped to the outer wall of the sensor body (2), one end of the fixed spring clamping rod (6) located outside the sensor outer shell body (1) is provided with a fixed locking device.

2. A high sensitivity ring proximity sensor as claimed in claim 1, characterized in that: The fixed locking device comprises a fixed screw rod (12), a screw head (13) and an abutting strip (14), the fixed screw rod (12) is threadedly connected to the side wall of the external fixing box (11), the side wall of the fixed spring clamping rod (6) is provided with the abutting strip (14), and the fixed screw rod (12) abuts on the surface of the abutting strip (14), and the fixed screw rod (12) is fixedly connected with the screw head (13) at one end located outside the external fixing box (11).

3. A high sensitivity ring proximity sensor as claimed in claim 1, characterized in that: The fixed spring clamping rod (6) is fixedly installed with an external handle (15) at one end located outside the sensor outer shell body (1).

4. A high sensitivity ring proximity sensor as claimed in claim 1, characterized in that: The inside of the sensor outer shell body (1) is provided with a heat dissipation device, and one end of the heat dissipation device is connected with a heat dissipation cooling box (4).

5. A high sensitivity ring proximity sensor as claimed in claim 1, characterized in that: The bottom of the sensor outer shell body (1) is installed with a functional bottom plate (3), a plurality of threading grooves (5) are penetratingly formed in the inside of the functional bottom plate (3), and the inner wall of the threading groove (5) is fixedly installed with a fireproof pad (16).

6. A high sensitivity loop proximity sensor as claimed in claim 5, characterised in that: Both ends of the functional bottom plate (3) are fixedly installed with mounting side plates (17), and a plurality of mounting holes are formed in the surface of the mounting side plate (17).

7. A high sensitivity ring proximity sensor as claimed in claim 4, characterized in that: The top end of the heat dissipation cooling box (4) is provided with a liquid adding port, and the lower surface of the heat dissipation cooling box (4) is provided with a liquid discharging port.

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