Photoelectric switch protection device

Abstract

The utility model belongs to the field of photoelectric switch protection, and particularly relates to a photoelectric switch protection device which comprises a supporting plate, a first square hole is formed in the surface of the supporting plate, and an adjusting mechanism is arranged in an inner cavity of the first square hole. By arranging an adjusting mechanism, the purpose of adjusting the protective shell up and down can be achieved, by arranging a guide column, when the guide column is manually pressed, the guide column can drive a U-shaped plate to move, the U-shaped plate can extrude a first spring, then an ejector block is made to move, the ejector block moves to drive a guide block to stretch a second spring, and at the moment, the ejector block is separated from an inner cavity of a second square groove; after the protective shell is adjusted to a proper height by moving up and down, pressing of a guide column is stopped, a U-shaped plate can recover to the original position under the elastic force of a first spring, a guide block can be withdrawn under the elastic force effect of a second spring, an ejector block is ejected out of an inner cavity of a second groove, and therefore the purpose that a user can conveniently adjust the position of the protective shell in the vertical direction is achieved.

Description

Technical Field

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

[0002] A photoelectric switch is short for photoelectric proximity switch. It is a type of sensor that uses the blocking or reflection of a light beam by the object being detected to activate the circuit via a synchronous circuit, thereby detecting the presence or absence of the object. The object is not limited to metal; any object that can reflect light (or block light) can be detected. The photoelectric switch converts the input current into a light signal on the transmitter and emits it. The receiver then detects the target object based on the intensity or presence of the received light.

[0003] Photoelectric switches are commonly used in the automation industry. However, the common material of photoelectric switches is usually plastic, which inevitably leads to bumps and knocks during use. This can cause poor contact, false alarms, and in severe cases, equipment collisions. Furthermore, in the automation industry, adjusting the height of the photoelectric switch protective device requires loosening screws to adjust its position, which is quite cumbersome. Therefore, this paper proposes a photoelectric switch protective device to address the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, which inevitably lead to bumps and knocks during use, resulting in poor contact of the photoelectric switch, false alarms, and in severe cases, equipment collisions, and complicated adjustments, this invention proposes a photoelectric switch protection device.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a photoelectric switch protection device, including a support plate, wherein a first square hole is opened on the surface of the support plate, and an adjustment mechanism is provided in the inner cavity of the first square hole;

[0006] The adjusting mechanism includes a slider slidably connected to the inner cavity of a first square hole. A screw is threaded onto the inner wall of the slider, and a protective shell, made of metal, is slidably connected to the surface of the screw. A countersunk hole is formed on the surface of the slider, and a guide post is slidably connected to the inner cavity of the countersunk hole. A U-shaped plate is fixedly mounted on the surface of the guide post, and a first spring is fixedly mounted on the surface of the U-shaped plate. One end of the first spring is fixedly connected to the inner wall of the countersunk hole. A second square hole is formed on the surface of the slider, and a first square groove is formed on the inner wall of the second square hole. A connecting post is fixedly mounted on the inner wall of the first square groove, and a guide block is slidably connected to the surface of the connecting post. A second spring is fixedly mounted on the surface of the guide block, and one end of the second spring is fixedly connected to the inner wall of the first square groove. A top block is fixedly mounted on the surface of the guide block, and the inner wall of the top block is slidably connected to the surface of the U-shaped plate. A second square groove is formed on the inner wall of the first square hole, and the surface of the guide block and the inner cavity of the second square groove are slidably connected.

[0007] Preferably, the surface of the slider is provided with a groove, and a slide rail is fixedly installed on the surface of the first square hole, with the inner cavity of the groove and the surface of the slide rail being slidably connected.

[0008] Preferably, the protective shell has an adjustment hole on its surface, and a cover plate is rotatably connected to the inner cavity of the adjustment hole.

[0009] Preferably, a pull block is fixedly installed on the surface of the cover plate, and a third groove is formed on the surface of the pull block.

[0010] Preferably, the protective shell has wire holes on its surface and irradiation holes on its surface, with an acrylic plate fixedly installed on the inner wall of the irradiation holes.

[0011] Preferably, the surface of the support plate is provided with mounting holes, and mounting pins are slidably connected to the inner cavity of the mounting holes.

[0012] Preferably, a washer is slidably connected to the surface of the mounting pin, and a spring washer is slidably connected to the surface of the mounting pin.

[0013] The advantages of this utility model are:

[0014] This invention, through the setting of an adjustment mechanism, enables the vertical adjustment of the protective shell. By setting a guide post, when the guide post is manually pressed, it drives the U-shaped plate to move, which in turn compresses the first spring, causing the top block to move. The movement of the top block causes the guide block to stretch the second spring, at which point the top block disengages from the inner cavity of the second square groove. After the protective shell is adjusted to an appropriate height by moving it up and down, pressing the guide post stops, and the U-shaped plate returns to its original position under the elastic force of the first spring. The guide block is retracted under the elastic force of the second spring, causing the top block to be pushed out into the inner cavity of the second groove, thereby facilitating the user's adjustment of the vertical position of the protective shell. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a partial schematic diagram of the adjustment mechanism of this utility model;

[0018] Figure 3 This is a partial schematic diagram of the adjustment mechanism of this utility model;

[0019] Figure 4 For the present utility model Figure 3 Enlarged view of point A in the middle;

[0020] Figure 5 This is a partial schematic diagram of the adjustment mechanism of this utility model;

[0021] Figure 6 This is a schematic diagram of the slide rail and slide groove structure of this utility model;

[0022] Figure 7 This is a schematic diagram of the cover plate and the third groove structure of this utility model;

[0023] Figure 8 This is a schematic diagram of the gasket and spring pad structure of this utility model.

[0024] In the diagram: 1. Support plate; 2. First square hole; 3. Adjustment mechanism; 301. Slider; 302. Screw; 303. Protective shell; 304. Countersunk hole; 305. Guide post; 306. U-shaped plate; 307. First spring; 308. Second square hole; 309. First square groove; 310. Connecting post; 311. Guide block; 312. Second spring; 313. Top block; 314. Second square groove; 4. Slide groove; 5. Slide rail; 6. Adjustment hole; 7. Cover plate; 8. Pull block; 9. Third square groove; 10. Wire hole; 11. Irradiation hole; 12. Acrylic plate; 13. Mounting hole; 14. Mounting pin; 15. Washer; 16. Spring washer. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0026] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0027] This application discloses a photoelectric switch protection device. (Refer to...) Figures 1 to 6 A photoelectric switch protection device includes a support plate 1, a first square hole 2 is provided on the surface of the support plate 1, and an adjustment mechanism 3 is provided in the inner cavity of the first square hole 2.

[0028] The adjusting mechanism 3 includes a slider 301, which is slidably connected to the inner cavity of the first square hole 2. A screw 302 is threadedly connected to the inner wall of the slider 301, and a protective shell 303 is slidably connected to the surface of the screw 302. The protective shell 303 is made of metal. A countersunk hole 304 is formed on the surface of the slider 301, and a guide post 305 is slidably connected to the inner cavity of the countersunk hole 304. A U-shaped plate 306 is fixedly installed on the surface of the guide post 305, and a first spring 307 is fixedly installed on the surface of the U-shaped plate 306. One end of the first spring 307 is fixedly connected to the inner wall of the countersunk hole 304. A second square hole is formed on the surface of the slider 301. 308, the inner wall of the second square hole 308 is provided with a first square groove 309, a connecting post 310 is fixedly installed on the inner wall of the first square groove 309, a guide block 311 is slidably connected to the surface of the connecting post 310, a second spring 312 is fixedly installed on the surface of the guide block 311, one end of the second spring 312 is fixedly connected to the inner wall of the first square groove 309, a top block 313 is fixedly installed on the surface of the guide block 311, the inner wall of the top block 313 is slidably connected to the surface of the U-shaped plate 306, the inner wall of the first square hole 2 is provided with a second square groove 314, and the surface of the guide block 311 and the inner cavity of the second square groove 314 are slidably connected;

[0029] Reference Figure 1 and Figure 6 The surface of the slider 301 is provided with a groove 4, and a slide rail 5 is fixedly installed on the surface of the first square hole 2. The inner cavity of the groove 4 and the surface of the slide rail 5 are slidably connected. By setting the groove 4 and the slide rail 5, the slider 301 can be guided, so that the slider 301 remains stable during the up and down adjustment process.

[0030] Reference Figure 2 The protective shell 303 has an adjustment hole 6 on its surface. The inner cavity of the adjustment hole 6 is rotatably connected to a cover plate 7. By setting the adjustment hole 6 and the cover plate 7, the adjustment hole 6 can be sealed to prevent dust and other debris from entering the inner cavity of the protective shell 303 and affecting the photoelectric switch.

[0031] Reference Figure 2 and Figure 7 A pull block 8 is fixedly installed on the surface of the cover plate 7. A third groove 9 is opened on the surface of the pull block 8. By setting the pull block 8 and the third groove 9, the cover plate 7 can be opened easily by manually placing it into the inner cavity of the third groove 9 and then pulling the pull block 8.

[0032] Reference Figure 1 and Figure 2 The protective shell 303 has a wire hole 10 on its surface and an irradiation hole 11 on its surface. An acrylic plate 12 is fixedly installed on the inner wall of the irradiation hole 11. By setting the wire hole 10, it is possible to conveniently put the entire photoelectric switch into the inner cavity of the protective shell 303. By setting the irradiation hole 11 and the acrylic plate 12, it is possible to prevent foreign objects from entering while facilitating the irradiation of the photoelectric switch.

[0033] Reference Figure 1 The surface of the support plate 1 is provided with mounting holes 13, and mounting nails 14 are slidably connected to the inner cavity of the mounting holes 13. By setting the mounting holes 13 and screws 302, the support plate 1 can be fixed while the horizontal position of the support plate 1 can be easily adjusted.

[0034] Reference Figure 1 and Figure 8 A washer 15 is slidably connected to the surface of the mounting nail 14, and a spring washer 16 is slidably connected to the surface of the mounting nail 14. By setting the washer 15 and the spring washer 16, the fastened screw 302 can be reinforced to prevent the mounting nail 14 from loosening due to equipment vibration.

[0035] Working principle: By removing screw 302, the photoelectric switch is placed into the inner cavity of the protective shell 303, which is made of metal. The protective shell 303 and the photoelectric switch are then fastened to the surface of the slider 301 by screw 302, thereby achieving the purpose of protecting the photoelectric switch. When the vertical height of the photoelectric switch needs to be adjusted, the guide post 305 is manually pressed. The guide post 305 will drive the U-shaped plate 306 to move and compress the first spring 307. When the U-shaped plate 306 moves, it will compress the top block 313. When the top block 313 is pressed, it will cause the guide block 311 to move on the surface of the connecting post 310, thereby stretching the second spring 312. Then, after the slider 301 is moved to the designated position, the pressure on the guide post 305 is stopped. At this time, the U-shaped plate 306 will return to its original position under the elastic force of the first spring 307. When the U-shaped plate 306 returns to its original position, the guide block 311 will be pulled back under the elastic force of the second spring 312, causing the top block 313 to extend and then be stuck in the inner cavity of the second square groove 314, thereby facilitating the user to quickly adjust the protective device.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A photointerrupter guard, comprising: a housing; a light source; a light detector; a light barrier; and a light shield. Includes a support plate (1), the surface of which is provided with a first square hole (2), and the inner cavity of the first square hole (2) is provided with an adjustment mechanism (3); The adjusting mechanism (3) includes a slider (301), which is slidably connected to the inner cavity of the first square hole (2). A screw (302) is threadedly connected to the inner wall of the slider (301), and a protective shell (303) is slidably connected to the surface of the screw (302). The protective shell (303) is made of metal. A countersunk hole (304) is provided on the surface of the slider (301). A guide post (305) is slidably connected to the inner cavity of the countersunk hole (304). A U-shaped plate (306) is fixedly installed on the surface of the guide post (305), and a first spring (307) is fixedly installed on the surface of the U-shaped plate (306). One end of the first spring (307) is fixedly connected to the inner wall of the countersunk hole (304). The surface of the slider (301) is provided with a first... The second square hole (308) has a first square groove (309) on its inner wall. A connecting column (310) is fixedly installed on the inner wall of the first square groove (309). A guide block (311) is slidably connected to the surface of the connecting column (310). A second spring (312) is fixedly installed on the surface of the guide block (311). One end of the second spring (312) is fixedly connected to the inner wall of the first square groove (309). A top block (313) is fixedly installed on the surface of the guide block (311). The inner wall of the top block (313) is slidably connected to the surface of the U-shaped plate (306). A second square groove (314) is opened on the inner wall of the first square hole (2). The surface of the guide block (311) is slidably connected to the inner cavity of the second square groove (314).

2. A photointerrupter guard according to claim 1, wherein: The surface of the slider (301) is provided with a groove (4), and a slide rail (5) is fixedly installed on the surface of the first square hole (2). The inner cavity of the groove (4) and the surface of the slide rail (5) are slidably connected.

3. A photointerrupter guard according to claim 1, wherein: The protective shell (303) has an adjustment hole (6) on its surface, and a cover plate (7) is rotatably connected to the inner cavity of the adjustment hole (6).

4. A photointerrupter guard according to claim 3, wherein: A pull block (8) is fixedly installed on the surface of the cover plate (7), and a third groove (9) is opened on the surface of the pull block (8).

5. A photointerrupter guard according to claim 1, wherein: The protective shell (303) has a wire hole (10) on its surface and an irradiation hole (11) on its surface. An acrylic plate (12) is fixedly installed on the inner wall of the irradiation hole (11).

6. The photoelectric switch protection device according to claim 1, characterized in that: The surface of the support plate (1) is provided with mounting holes (13), and mounting pins (14) are slidably connected to the inner cavity of the mounting holes (13).

7. A photointerrupter guard according to claim 6, wherein: A washer (15) is slidably connected to the surface of the mounting pin (14), and a spring washer (16) is slidably connected to the surface of the mounting pin (14).

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