A photoelectric switch protective cover

Abstract

This utility model relates to the field of photoelectric switch protection technology, and in particular to a photoelectric switch protective cover, including a protective top plate and protective side plates fixed to the bottom of the protective top plate. The bottom and side chamfers of the protective side plates are set as arc surfaces. The arc surface design can avoid or reduce the injury caused by the surface of the protective side plates to personnel when working near the protective side plates. Two sets of protective side plates are symmetrically fixed at the bottom of the protective top plate. A second fixing plate is fixed to the surface of one set of protective side plates. By setting the protective top plate, protective side plates and protective bottom plate, the front, top, bottom, left, right and rear of the photoelectric switch body plug interface can be protected. This prevents the surface of the glue cylinder from directly impacting the photoelectric switch body plug interface when personnel disassemble and maintain the glue cylinder, thereby preventing damage to the photoelectric switch body plug interface from direct external impact in six directions (front, back, left, right, top and bottom). It is relatively convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of photoelectric switch protection technology, specifically a photoelectric switch protective cover. Background Technology

[0002] A photoelectric switch, short for photoelectric proximity switch, detects the presence or absence of an object by utilizing its ability to block or reflect light. A synchronous circuit activates the circuit, activating the switch. The object is not limited to metal; any object that reflects light (or blocks light) can be detected. The photoelectric switch converts the input current into a light signal at the transmitter, which is then emitted. The receiver detects the target object based on the intensity or presence of the received light. Common applications in security systems include photoelectric smoke detectors, and in industry, they are frequently used to count the number of movements of robotic arms.

[0003] Currently, some existing YJ27 cigarette filling machines use photoelectric switch protection devices that protect the front of the photoelectric switch's connector by providing a protective cover. This prevents the glue cylinder surface from directly impacting the photoelectric switch connector during disassembly and maintenance. However, this only protects the front of the connector; the back, left, right, top, and bottom of the connector can still be damaged by external forces, making it relatively inconvenient to use. Therefore, we propose a photoelectric switch protective cover to solve or improve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a protective cover for a photoelectric switch to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A protective cover for a photoelectric switch includes a protective top plate, protective side plates fixed to the bottom of the protective top plate, two sets of protective side plates symmetrically fixed to the bottom of the protective top plate, and a protective bottom plate fixed to the bottom of the protective side plates. The protective bottom plate is located between the two sets of protective side plates and is fixedly connected to the bottom of both sets of protective side plates.

[0007] The top of the protective top plate is provided with a first fixing plate, and a threaded post is inserted inside the first fixing plate. One side of the bottom of the threaded post passes through the interior of the protective top plate. Two sets of threaded posts are symmetrically inserted inside the first fixing plate. The surface of the threaded post is threaded with a mounting nut. Two sets of mounting nuts are symmetrically threaded on the surface of one set of threaded posts.

[0008] As a preferred technical solution, a protective cover is fixed to the top of the first fixing plate, the inside of the protective cover is provided with a slot, and a fixing wire clip is fixed to the surface of the protective cover, the fixing wire clip being located inside the slot of the protective cover.

[0009] As a preferred technical solution, a second fixing plate is fixed to the surface of the set of protective side plates, a third fixing plate is fixed to the surface of the second fixing plate, and an installation groove is formed on the surface of the third fixing plate.

[0010] As a preferred technical solution, a photoelectric switch body is placed on top of the protective base plate, and the photoelectric switch body is located between two sets of protective side plates.

[0011] As a preferred technical solution, mounting screws are inserted inside the set of protective side plates, and two sets of mounting screws are inserted on the surface of the set of protective side plates.

[0012] As a preferred technical solution, one end of the mounting screw passes through the interior of the protective side plate and is threadedly connected to the photoelectric switch body placed on the top of the protective base plate, with one top end of the photoelectric switch body located outside the protective top plate.

[0013] As a preferred technical solution, the surface of the photoelectric switch body is provided with a sensor lead wire, which passes between the two sets of protective side plates and through the fixed wire clip fixed inside the groove of the protective cover.

[0014] As a preferred technical solution, one set of mounting nuts is located on the top side of the first fixing plate, and the other set of mounting nuts is located on the bottom side of the protective top plate.

[0015] As a preferred technical solution, the top and bottom chamfers of the protective cover are set as arc surfaces, and the edge of the first fixing plate is set as an arc edge.

[0016] As a preferred technical solution, the bottom and side chamfers of the protective side plate are set as curved surfaces, and the bottom and side chamfers of the third fixing plate are set as curved surfaces.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. In this utility model, by setting a protective top plate, a protective side plate and a protective bottom plate, the front, top, bottom, left, right and rear of the photoelectric switch body plug interface can be protected, avoiding the surface of the glue cylinder from directly impacting the photoelectric switch body plug interface when personnel disassemble and maintain the glue cylinder. This avoids damage to the photoelectric switch body plug interface from direct impact in six directions (front, back, left, right, top and bottom), making it relatively convenient to use.

[0019] 2. In this utility model, by setting a protective cover, one side of the sensor lead wire can be isolated and protected, reducing or avoiding the impact or scratching of the glue cylinder surface on one side of the sensor lead wire when personnel disassemble and maintain the glue cylinder. This prevents the sensor lead wire from becoming loose or damaged at the interface due to collision or scratching by the glue cylinder, thus improving the durability of the sensor lead wire. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the sensor lead wire structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the third fixing plate structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the protective base plate structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the protective cover structure of this utility model;

[0025] Figure 6 This is a schematic diagram of the fixed wire clip structure of this utility model.

[0026] In the diagram: 1. Protective top plate; 2. Protective cover; 3. First fixing plate; 4. Threaded post; 5. Protective bottom plate; 6. Mounting nut; 7. Protective side plate; 8. Photoelectric switch body; 9. Mounting screw; 10. Second fixing plate; 11. Mounting groove; 12. Third fixing plate; 13. Sensor lead wire; 14. Fixing clip. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0028] Example

[0029] Please see Figures 1-6 This utility model provides a technical solution:

[0030] A protective cover for a photoelectric switch includes a protective top plate 1 and protective side plates 7 fixed to the bottom of the protective top plate 1. The bottom and side corners of the protective side plates 7 are chamfered to be curved. The curved surface design can avoid or reduce injury to personnel from the surface of the protective side plates 7 when working near them. Two sets of protective side plates 7 are symmetrically fixed to the bottom of the protective top plate 1. A second fixing plate 10 is fixed to the surface of one set of protective side plates 7, and a third fixing plate 12 is fixed to the surface of the second fixing plate 10. The bottom and side corners of the third fixing plate 12 are chamfered to be curved. The curved surface design can avoid or reduce injury to personnel from the surface of the third fixing plate 12 when working near it. The surface of the third fixing plate 12 has a mounting groove 11, which is bolted to... Mounting slot 11 allows the protective top plate 1 to be installed inside the equipment and fixed to the protective base plate 5 at the bottom of the protective side plate 7. The protective base plate 5 is located between the two sets of protective side plates 7 and is fixedly connected to the bottom of both sets of protective side plates 7. A photoelectric switch body 8 is placed on the top of the protective base plate 5. The photoelectric switch body 8 is located between the two sets of protective side plates 7. A mounting screw 9 is inserted inside one set of protective side plates 7. Two sets of mounting screws 9 are inserted on the surface of one set of protective side plates 7. One end of the mounting screw 9 passes through the inside of the protective side plate 7 and is threadedly connected to the photoelectric switch body 8 placed on the top of the protective base plate 5. The photoelectric switch body 8 can be threadedly installed on the surface of the protective side plate 7 through the mounting screw 9. When the photoelectric switch body 8 is installed on the surface of the protective side plate 7, its position... Located between two sets of protective side plates 7, the left, right, front, and rear sides of the photoelectric switch body 8's connector are protected by the two sets of protective side plates 7. Since the photoelectric switch body 8 is located on the bottom side of the protective top plate 1, the top of the connector of the photoelectric switch body 8 is protected by the second fixing plate 10. Simultaneously, since the photoelectric switch body 8 is located on the top of the protective bottom plate 5, the bottom of the connector of the photoelectric switch body 8 is protected by the protective bottom plate 5. Thus, when the photoelectric switch body 8 is installed on the surface of the protective side plates 7, the front, top, bottom, left, right, and rear sides of the connector of the photoelectric switch body 8 are protected by the protective top plate 1, protective side plates 7, and protective bottom plate 5. One top end of the photoelectric switch body 8 is located within the protective... On the exterior of the top plate 1, a first fixing plate 3 is provided on the top of the protective top plate 1. The edge of the first fixing plate 3 is set as an arc edge. The arc design can avoid or reduce the injury to personnel from the surface of the first fixing plate 3 when working near the first fixing plate 3. Threaded posts 4 are inserted inside the first fixing plate 3. The bottom side of the threaded posts 4 passes through the interior of the protective top plate 1. Two sets of threaded posts 4 are symmetrically inserted inside the first fixing plate 3. Mounting nuts 6 are threaded on the surface of the threaded posts 4. Two sets of mounting nuts 6 are symmetrically threaded on the surface of one set of threaded posts 4. One set of mounting nuts 6 is located on the top side of the first fixing plate 3, and the other set of mounting nuts 6 is located on the bottom side of the protective top plate 1.The first fixing plate 3 can be fixed to the top of the protective top plate 1 by installing the nut 6 and the threaded post 4. A protective cover 2 is fixed to the top of the first fixing plate 3. The protective cover 2 has a slot inside, and the top and bottom chamfers of the protective cover 2 are curved. The curved design can prevent or reduce injury to personnel when working near the protective cover 2. A fixing clip 14 is fixed to the surface of the protective cover 2, located inside the slot of the protective cover 2. A sensor lead wire 13 is provided on the surface of the photoelectric switch body 8. The sensor lead wire 13 passes between the two sets of protective side plates 7 and through the fixing clip 14 fixed inside the slot of the protective cover 2. The fixing clip 14 can restrict the position of the sensor lead wire 13 to a certain extent, preventing or reducing the possibility of one end of the sensor lead wire 13 inside the protective cover 2 detaching from the inside of the protective cover 2 due to vibration during equipment operation or personnel operation. Simultaneously, when one end of the sensor lead wire 13 is inside the protective cover 2, the protective cover 2 can isolate and protect one side of the sensor lead wire 13.

[0031] The working process of this utility model is as follows: When protection of the photoelectric switch body 8 is required, the third fixing plate 12 can be fixed inside the equipment through the mounting groove 11 and bolts. The third fixing plate 12 then fixes the second fixing plate 10, the protective side plate 7, and the protective top plate 1. At this time, the first fixing plate 3 can be fixed to the top of the protective top plate 1 through the mounting nut 6 and threaded post 4. This fixes the first fixing plate 3 and the protective cover 2 fixedly connected to the first fixing plate 3 to the top of the protective top plate 1. After fixing, the photoelectric switch body 8 is inserted between the two sets of protective side plates 7 and installed on the surface of the protective side plates 7 using mounting screws 9. At this point, the protective top plate 1, protective side plates 7, and protective bottom plate 5 can protect the front, top, bottom, left, right, and rear of the photoelectric switch body 8's insertion interface, preventing the surface of the glue tank from directly impacting the insertion part of the photoelectric switch body 8 when personnel disassemble and maintain the glue tank. This design avoids damage to the photoelectric switch body 8 connector from direct impact in six directions (front, back, left, right, top, and bottom), making it relatively convenient to use. It also greatly reduces the frequency and cost of spare parts replacement and improves the effective operating rate of the equipment. At this time, placing one end of the sensor lead wire 13 inside the protective cover 2 and letting it pass through the inside of the fixing clip 14 can isolate and protect one side of the sensor lead wire 13 through the protective cover 2. This reduces or avoids the surface of the glue cylinder hitting or scratching the side of the sensor lead wire 13 when personnel disassemble and maintain the glue cylinder, thereby preventing the sensor lead wire 13 from becoming loose or damaged at the interface due to collision or scratching by the glue cylinder, and improving the durability of the sensor lead wire 13. At the same time, the protective top plate 1, protective side plate 7, protective bottom plate 5, second fixing plate 10, third fixing plate 12, first fixing plate 3 and protective cover 2 are all made of 304 stainless steel to prevent the glue splashed in this part from corroding the protective cover 2.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A protective cover for a photoelectric switch, comprising a protective top plate (1), protective side plates (7) fixed to the bottom of the protective top plate (1), two sets of protective side plates (7) symmetrically fixed to the bottom of the protective top plate (1), and a protective bottom plate (5) fixed to the bottom of the protective side plates (7), the protective bottom plate (5) being located between the two sets of protective side plates (7) and simultaneously fixedly connected to the bottom of the two sets of protective side plates (7), characterized in that: The top of the protective top plate (1) is provided with a first fixing plate (3), and a threaded post (4) is inserted inside the first fixing plate (3). The bottom side of the threaded post (4) passes through the interior of the protective top plate (1). Two sets of threaded posts (4) are symmetrically inserted inside the first fixing plate (3). The surface of the threaded post (4) is threaded with a mounting nut (6). Two sets of mounting nuts (6) are symmetrically threaded on the surface of one set of threaded posts (4).

2. The photoelectric switch protective cover according to claim 1, characterized in that, The top of the first fixing plate (3) is fixed with a protective cover (2), the inside of the protective cover (2) is provided with a slot, and a fixing wire clip (14) is fixed on the surface of the protective cover (2), the fixing wire clip (14) is located inside the slot of the protective cover (2).

3. The photoelectric switch protective cover according to claim 1, characterized in that, A second fixing plate (10) is fixed to the surface of the set of protective side plates (7), and a third fixing plate (12) is fixed to the surface of the second fixing plate (10). An installation groove (11) is provided on the surface of the third fixing plate (12).

4. The photoelectric switch protective cover according to claim 1, characterized in that, The photoelectric switch body (8) is placed on top of the protective base plate (5), and the photoelectric switch body (8) is located between the two sets of protective side plates (7).

5. A photoelectric switch protective cover according to claim 1, characterized in that, The set of protective side plates (7) is provided with mounting screws (9) inserted inside, and two sets of mounting screws (9) are inserted on the surface of the set of protective side plates (7).

6. A photoelectric switch protective cover according to claim 5, characterized in that, One end of the mounting screw (9) passes through the interior of the protective side plate (7) and is threadedly connected to the photoelectric switch body (8) placed on the top of the protective base plate (5). The top end of the photoelectric switch body (8) is located outside the protective top plate (1).

7. A photoelectric switch protective cover according to claim 4, characterized in that, The surface of the photoelectric switch body (8) is provided with a sensor lead wire (13), which passes between the two sets of protective side plates (7) and through the inside of the fixing wire clip (14) fixed inside the slot of the protective cover (2).

8. A photoelectric switch protective cover according to claim 1, characterized in that, The threaded post (4) has two sets of mounting nuts (6) threaded on its surface. One set of mounting nuts (6) is located on the top side of the first fixing plate (3), and the other set of mounting nuts (6) is located on the bottom side of the protective top plate (1).

9. A photoelectric switch protective cover according to claim 2, characterized in that, The top and bottom chamfers of the protective cover (2) are set as arc surfaces, and the edge of the first fixing plate (3) is set as an arc edge.

10. A photoelectric switch protective cover according to claim 3, characterized in that, The bottom and side chamfers of the protective side plate (7) are set as arc surfaces, and the bottom and side chamfers of the third fixing plate (12) are set as arc surfaces.

Images