Device for detecting foreign matters on surface of contact of railway signal relay

Abstract

The invention discloses a railway signal relay contact surface foreign matter detection device, and relates to the technical field of detection devices.The railway signal relay contact surface foreign matter detection device comprises a bottom plate, a base, a light shielding cover, a pair of light sources, a movable seat, three cameras, a dust removal mechanism, an external controller, an external power source and an external computer; a double-opening cover door is rotationally arranged on the front side wall of the light shielding cover through a hinge, a limiting groove matched with the bottom of the movable seat is formed in the center of the base, the limiting groove is formed in the direction from the cover door to the rear side wall of the light shielding cover, and the movable seat is slidably connected with the limiting groove; according to the invention, the relay contact surface is inspected by adopting an operation mode of camera shooting and uploading to a computer for checking, the labor intensity of inspectors can be effectively reduced, and the inspection accuracy is improved.

Description

Technical Field

[0001] The invention relates to the technical field of detection devices, in particular to a detection device for foreign matter on the contact surface of a railway signal relay. Background Art

[0002] Railway signal relay is one of the important components in the rail transit industry. In railway signal automatic control and remote control systems, it can be used to form logic circuits or as an actuator to directly monitor and control the operation of trains. Its safe and reliable operation is a necessary condition to ensure the stable operation of the railway system. In railway signal relays, the reliability of the contact system directly determines the reliability of the relay. During the relay production process, fibers and dust in the environment may adhere to the contact surface of the relay. These foreign objects may affect the reliable connection of the contact, thereby endangering the safety of railway driving.

[0003] During the inspection process of relay products, foreign objects on the surface of the connection points need to be checked through manual visual inspection. The inspection efficiency is low, the operation intensity of employees is high, and it is easy to miss the inspection. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the present invention provides a device for detecting foreign objects on the surface of railway signal relay contacts. The device uses a camera to take pictures and upload the pictures to a computer for verification to inspect the surface of the relay contacts. This can effectively reduce the labor intensity of inspectors and improve the accuracy of inspection.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a detection device for foreign matter on the contact surface of a railway signal relay, comprising a bottom plate, a base, a light shield, a pair of light sources, a movable seat, three cameras, a dust removal mechanism, an external controller, an external power supply and an external computer, wherein the base is arranged on the bottom plate, the light shield is buckled on the base, a double-opening cover door is arranged on the front side wall of the light shield through a hinge rotation, a limiting groove matching the bottom of the movable seat is opened at the center of the base, the limiting groove is opened from the cover door to the rear side wall of the light shield, the movable seat is slidably connected to the limiting groove, and the corresponding A fixing plate is provided at one end of the inner side of the limiting groove, and a proximity sensor is provided on the side of the fixing plate facing the relay, and the proximity sensor is connected to an external controller. A groove is provided on the movable seat, and the relay can be placed vertically in the groove. A pair of light sources are respectively provided on both sides of the base and are connected to an external power supply and an external controller, and the light sources face the relay. Three cameras are respectively provided at the center positions of the left and right side walls and the center position of the top of the light shield, and face the relay respectively. The cameras are connected to an external computer and an external controller. The dust removal mechanism is provided on the top of the light shield, and the dust removal mechanism is connected to the external controller.

[0006] Preferably, the dust removal mechanism includes an inlet, an outlet and an external dust collector, the inlet and the outlet are respectively arranged on both sides of the top of the light shield, and the outlet is connected to the external dust collector.

[0007] Preferably, a filter sponge is provided in the inlet.

[0008] Preferably, a pad can be arranged in the groove of the movable seat.

[0009] Preferably, a torsion spring is provided on the hinge, so that the cover door can be closed without external force, and a handle is provided on the cover door.

[0010] Preferably, a connecting plate is provided at a position on the front end surface of the movable seat below the lower end of the cover door, and a handle is provided at one end of the outer side of the connecting plate.

[0011] Preferably, the inner edge of the groove of the movable seat is provided with a chamfer.

[0012] The present invention provides a device for detecting foreign matter on the contact surface of a railway signal relay, which has the following beneficial effects: 1. The present invention uses a camera to take pictures and upload them to a computer for verification to inspect the surface of the relay contact, which can effectively reduce the labor intensity of the inspectors and improve the accuracy of the inspection; 2. A limiting groove matching the bottom of the moving seat is provided at the center position on the base of the present invention, and the moving seat is slidably connected in the limiting groove to ensure the stability of sliding, while ensuring that the position of the relay in the light shield is centered, ensuring the clarity of the camera shooting, and improving the detection quality. A pad can be provided in the groove of the moving seat so as to use relays of different heights for detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front cross-sectional view of the present invention; Figure 2 It is a left side cross-sectional view of the present invention; Figure 3 It is a front view of the present invention; Figure 4 It is a schematic diagram of the working process of the present invention.

[0014] In the figure: 1. light shield; 2. light source; 3. base; 4. movable seat; 5. limit groove; 6. groove; 7. pad; 8. bottom plate; 9. camera; 10. outlet; 11. inlet; 12. filter sponge; 13. fixing plate; 14. proximity sensor; 15. chamfer; 16. handle; 17. connecting plate; 18. cover door; 19. handle; 20. hinge; 21. torsion spring. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] like Figure 1-4 As shown, a detection device for foreign matter on the contact surface of a railway signal relay comprises a bottom plate 8, a base 3, a light shield 1, a pair of light sources 2, a movable seat 4, three cameras 9, a dust removal mechanism, an external controller, an external power supply and an external computer. The base 3 is arranged on the bottom plate 8, the light shield 1 is buckled on the base 3, and a double-opening cover door 18 is arranged on the front side wall of the light shield 1 through a hinge 20. A limiting groove 5 matching the bottom of the movable seat 4 is provided at the center of the base 3, and the limiting groove 5 is opened from the cover door 18 to the rear side wall of the light shield 1. The movable seat 4 is slidably connected to the limiting groove 5. A fixing plate 13 is provided on one end of the base 3 corresponding to the inner side of the limiting groove 5, and a proximity sensor 14 is provided on the fixing plate 13 facing the side of the relay. The proximity sensor 14 is connected to the external controller, and a groove 6 is provided on the movable seat 4, and the relay can be placed vertically in the groove 6. A pair of light sources 2 are respectively arranged on both sides of the base 3, and are connected to the external power supply and the external The controller is connected, the light source 2 faces the relay, three cameras 9 are respectively arranged at the center positions of the left and right side walls and the center position of the top of the light-shielding cover 1, facing the relay respectively, the camera 9 is connected to the external computer and the external controller, the dust removal mechanism is arranged at the top of the light-shielding cover 1, and the dust removal mechanism is connected to the external controller; the dust removal mechanism includes an inlet 11, an outlet 10 and an external dust collector, the inlet 11 and the outlet 10 are respectively arranged on both sides of the top of the light-shielding cover 1, and the outlet 10 is connected to the external dust collector; a filter sponge 12 is arranged in the inlet 11; a pad 7 can be arranged in the groove 6 of the movable seat 4; a torsion spring 21 is arranged on the hinge 20, which can close the cover door 18 in the absence of external force, and a handle 19 is arranged on the cover door 18; a connecting plate 17 is arranged at a position below the lower end of the cover door 18 on the front end surface of the movable seat 4, and a handle 16 is arranged at one end of the outer side of the connecting plate 17; a chamfer 15 is arranged on the inner edge of the groove 6 of the movable seat 4.

[0017] The detailed connection means are well-known in the art. The following mainly introduces the working principle and process, which are as follows: According to the instruction manual Figure 1-4It can be known that when the present invention is working, the personnel opens the cover door 18, pulls the movable seat 4 out of the limit groove 5 on the base 3, places the relay in the groove 6 on the upper surface of the movable seat 4, and pushes the mounting seat and the relay into the light-shielding cover 1. When the side wall of the movable seat 4 is close to the fixed plate 13 and reaches the set value of the proximity sensor 14, the proximity sensor 14 transmits a signal to the external controller to control a pair of light sources 2 to turn on, and at the same time controls the dust removal mechanism to perform dust removal on the light-shielding cover 1. After 10 seconds, the three cameras 9 take pictures at the same time and upload the images to the external computer. The external computer can perform comparative analysis to achieve the purpose of detection, which can effectively reduce the labor intensity of the inspectors and improve the accuracy of the inspection.

[0018] The dust removal mechanism includes an inlet 11, an outlet 10 and an external dust removal machine, wherein the inlet 11 and the outlet 10 are respectively arranged on both sides of the top of the light shield 1, and the outlet 10 is connected to the external dust removal machine. When working, the external dust removal machine sucks out the dust inside the light shield 1 from the outlet 10 to ensure the cleanliness of the inside and improve the photographing effect. In addition, a filter sponge 12 is arranged in the inlet 11 to prevent dust from entering.

[0019] Among them, a pad 7 can be set in the groove 6 of the movable seat 4 to adjust the height of the relay, ensure the photographic effect, and improve the applicability.

[0020] The hinge 20 is provided with a torsion spring 21, which can close the cover door 18 without external force. The cover door 18 is provided with a handle 19, which is convenient for personnel to open the cover door 18 and can automatically close the door.

[0021] A connecting plate 17 is provided at a position at the front end of the movable seat 4 below the lower end of the cover door 18, and a handle 16 is provided at one end of the outer side of the connecting plate 17 to facilitate personnel to pull out and push in the movable seat 4 and the relay.

[0022] The inner edge of the groove 6 of the movable seat 4 is provided with a chamfer 15 to facilitate placement of the relay.

[0023] In the present invention, the proximity sensor, the external controller, the external dust collector, the camera, the light source, and the external computer are electrically connected, which can be easily understood by those skilled in the art.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for detecting foreign matter on the contact surface of a railway signal relay, characterized in that: The invention comprises a bottom plate (8), a base (3), a light shield (1), a pair of light sources (2), a movable seat (4), three cameras (9), a dust removal mechanism, an external controller, an external power supply and an external computer. The base (3) is arranged on the bottom plate (8), the light shield (1) is buckled on the base (3), a double-opening cover door (18) is arranged on the front side wall of the light shield (1) by means of a hinge (20), a limiting groove (5) matching the bottom of the movable seat (4) is arranged at the center of the base (3), the limiting groove (5) is arranged from the cover door (18) to the rear side wall of the light shield (1), the movable seat (4) is slidably connected with the limiting groove (5), and a corresponding inner end of the limiting groove (5) is arranged on the base (3). A fixing plate (13) is provided, and a proximity sensor (14) is arranged on the side of the fixing plate (13) facing the relay, and the proximity sensor (14) is connected to an external controller. A groove (6) is provided on the movable seat (4), and the relay can be placed vertically in the groove (6). A pair of light sources (2) are respectively arranged on both sides of the base (3) and are connected to an external power supply and an external controller, and the light sources (2) face the relay. Three cameras (9) are respectively arranged at the center positions of the left and right side walls and the center position of the top of the light shield (1), and face the relay respectively. The cameras (9) are connected to an external computer and an external controller. The dust removal mechanism is arranged on the top of the light shield (1), and the dust removal mechanism is connected to the external controller.

2. A detection device for foreign matter on the contact surface of a railway signal relay according to claim 1, characterized in that: The dust removal mechanism comprises an inlet (11), an outlet (10) and an external dust removal machine. The inlet (11) and the outlet (10) are respectively arranged on both sides of the top of the light shield (1), and the outlet (10) is connected to the external dust removal machine.

3. A device for detecting foreign matter on the contact surface of a railway signal relay according to claim 2, characterized in that: A filter sponge (12) is arranged in the inlet (11).

4. A device for detecting foreign matter on the contact surface of a railway signal relay according to claim 1, characterized in that: A pad (7) can be arranged in the groove (6) of the movable seat (4).

5. A device for detecting foreign matter on the contact surface of a railway signal relay according to claim 1, characterized in that: The hinge (20) is provided with a torsion spring (21), which can close the cover door (18) in the absence of external force, and the cover door (18) is provided with a handle (19).

6. A device for detecting foreign matter on the contact surface of a railway signal relay according to claim 1, characterized in that: A connecting plate (17) is provided at a position of the front end surface of the movable seat (4) below the lower end of the cover door (18), and a handle (16) is provided at one end outside the connecting plate (17).

7. A device for detecting foreign matter on the contact surface of a railway signal relay according to claim 1, characterized in that: The inner edge of the groove (6) of the movable seat (4) is provided with a chamfer (15).

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