Mounting shell for manufacturing transmitting end of photoelectric sensor

Abstract

The utility model belongs to the technical field of sensor manufacturing, and particularly relates to a mounting shell for manufacturing a transmitting end of a photoelectric sensor, which comprises a shell body, the shell body is provided with a light inlet and a light outlet, and the axis of the light inlet and the axis of the light outlet form an included angle and are positioned in the same plane A; the included angle between the axis of the light inlet and the side wall A, back to the light outlet, in the shell body is equal to the included angle between the axis of the light outlet and the side wall A, back to the light outlet, in the shell body, the distance from the intersection point of the axis of the light inlet and the side wall A to the light inlet is smaller than the distance from the intersection point of the axis of the light outlet and the side wall A to the light inlet, and the side wall A is perpendicular to the plane A; according to the invention, the shell body is provided with the light inlet and the light outlet which are relatively fixed in position, and the side wall A, so that the installation shell used for manufacturing the transmitting end of the photoelectric sensor is designed, and the problem of how to prevent a light source from being damaged when the shell body is impacted is solved.

Description

Technical Field

[0001] The present application belongs to the field of sensor manufacturing technology, and specifically relates to a mounting shell for manufacturing a transmitting end of a photoelectric sensor. Background Art

[0002] The photoelectric sensor consists of a transmitter and a receiver. When in use, the transmitter and the receiver are arranged relative to each other so that the light emitted by the transmitter can enter the receiver. When there is an object between the transmitter and the receiver, it will block part or all of the light emitted by the transmitter. The receiver determines whether there is an object between the transmitter and the receiver based on the received light, thereby realizing the function of the sensor.

[0003] However, the light emitted by the light source at the transmitter end of current photoelectric sensors does not exit directly from the light exit hole. Current photoelectric sensors are primarily mounted on either side of a production line's conveyor belt. Therefore, if an object slips or the production line suddenly stops, the photoelectric sensor could be struck, potentially damaging the light source and rendering the entire sensor inoperable. Therefore, a mounting housing for the transmitter end of a photoelectric sensor is needed. Utility Model Content

[0004] The purpose of this application is mainly to address the shortcomings of the existing technology. By setting a relatively fixed light inlet and light outlet and a side wall A on the shell body, a mounting shell for making a photoelectric sensor transmitting end is designed, so that the reflector and convex lens can be conveniently assembled on the shell body without the need for measurement. At the same time, since the light inlet and the light outlet are not in the same straight line, when the shell body is hit, the direction of the impact force will not be directly towards the light source, and the shell body will be separated from (and deviate from) the light source, thereby preventing the light source from being hit.

[0005] In order to achieve the above objectives, the technical solution adopted in this application is:

[0006] A mounting shell for making a photoelectric sensor transmitting end, comprising a shell body, wherein the shell body is provided with a light inlet and a light outlet, the axis of the light inlet and the axis of the light outlet having an angle therebetween and being located in the same plane A, the angle between the axis of the light inlet and a side wall A within the shell body facing away from the light outlet being equal to the angle between the axis of the light outlet and the side wall A within the shell body facing away from the light outlet, the distance from the intersection of the axis of the light inlet and the side wall A to the light inlet being less than the distance from the intersection of the axis of the light outlet and the side wall A to the light inlet, and the side wall A being perpendicular to the plane A.

[0007] Preferably, the projection of the side wall A on a plane perpendicular to the axis of the light inlet surrounds the light inlet, and the projection of the side wall A on a plane perpendicular to the axis of the light outlet is located within the projection of the light outlet on a plane perpendicular to the axis of the light outlet.

[0008] Preferably, the side wall of the shell body parallel to the axis of the light inlet is a shell cover, and the shell cover is detachably covered on the shell body. A mounting groove is provided on the shell body at the light outlet, and a first slot is provided on each of the two opposite inner side walls in the light outlet. The projections of the two first slots on the side wall of the shell body facing away from the shell cover are both U-shaped, the U-shaped openings of the two first slots face each other, and the connecting line segment between the two first slots is perpendicular to the axis of the light outlet.

[0009] Preferably, a second slot with an opening toward the shell cover is provided on the side wall of the shell body facing away from the shell cover, the length line of the second slot is parallel to the side wall A, and a protrusion that cooperates with the second slot is provided on the shell cover.

[0010] Preferably, an end block is provided at each end of the second slot on the side wall A in the shell body facing away from the shell cover, and the intersection points of all virtual straight lines starting from the edge of the light inlet and parallel to the axis of the light inlet with the side wall A are between the two end blocks, and the intersection points of all virtual straight lines starting from the edge of the light outlet and parallel to the axis of the light outlet with the side wall A are between the two end blocks.

[0011] Preferably, a positioning column perpendicular to the shell cover is provided on the side wall of the shell body, and a positioning hole cooperating with the positioning column is provided on the shell cover.

[0012] Preferably, the shell body and the shell cover are locked together by bolts.

[0013] Preferably, the angle A between the axis of the light inlet and the axis of the light outlet is less than ninety degrees, and the angle B between the plane on which the light inlet is arranged and the plane on which the light outlet is arranged on the shell body is an obtuse angle.

[0014] Compared with the prior art, this application has the following beneficial effects:

[0015] 1. This application adopts a method of setting a relatively fixed light inlet and light outlet and a side wall A on the shell body to design a mounting shell for making a photoelectric sensor transmitting end, so that the reflector and convex lens can be conveniently assembled on the shell body without the need for measurement. At the same time, since the light inlet and the light outlet are not in the same straight line, when the shell body is hit, the direction of the impact force will not be directly towards the light source, and the shell body will be separated from (and deviate from) the light source, thereby preventing the light source from being hit.

[0016] 2. In the present application, because the projection of side wall A on a plane perpendicular to the axis of the light inlet surrounds the light inlet, and the projection of side wall A on a plane perpendicular to the axis of the light outlet lies within the projection of the light outlet on a plane perpendicular to the axis of the light outlet, all light entering the housing from the light inlet and parallel to the axis of the light inlet is illuminated by the reflector mounted on side wall A. Simultaneously, light parallel to the axis of the light outlet reflected by the reflector mounted on side wall A is also emitted directly from the light outlet, thereby avoiding the occurrence of insufficient light.

[0017] 3. The present application provides a shell cover to facilitate workers to install convex lenses and reflectors when making photoelectric sensors. After installation, the convex lens and reflector can be conveniently fixed in the shell body. The setting of the first slot is to facilitate the installation of the convex lens at the light outlet, and the U-shaped design of the first slot facilitates the clamping of the convex lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of this application;

[0019] Figure 2 This is an exploded view of the application;

[0020] Figure 3 for Figure 2 The structural diagram on the left;

[0021] Figure 4 This is a schematic diagram of the shell after the convex lens and reflector are installed;

[0022] Figure 5 A schematic diagram showing the angle B between the plane where the light inlet is set and the plane where the light outlet is set on the shell body.

[0023] Among them, 1. Shell body; 2. Light inlet; 3. Light outlet; 4. Side wall A; 5. Plane A; 6. Shell cover; 7. Reflector; 8. First slot; 9. Second slot; 10. Protrusion; 11. Block; 12. Positioning column; 13. Positioning hole; 14. Convex lens; 15. Angle A; 16. Angle B. DETAILED DESCRIPTION

[0024] like Figure 1-5 As shown, a mounting shell for making a photoelectric sensor emitting end includes a shell body 1, and the shell body 1 is provided with a light inlet 2 and a light outlet 3. The axis of the light inlet 2 and the axis of the light outlet 3 have an angle between them and are located in the same plane A5. The angle between the axis of the light inlet 2 and the side wall A4 in the shell body 1 facing away from the light outlet 3 is equal to the angle between the axis of the light outlet 3 and the side wall A4 in the shell body 1 facing away from the light outlet 3. The distance from the intersection of the axis of the light inlet 2 and the side wall A4 to the light inlet 2 is less than the distance from the intersection of the axis of the light outlet 3 and the side wall A4 to the light inlet 2, and the side wall A4 is perpendicular to the plane A5.

[0025] After this arrangement, the reflector 7 can be installed on the side wall A4 so that the reflector 7 is parallel to the side wall A4. The arrangement of the side wall A4 is to facilitate the installation of the reflector 7. Then, a convex lens 14 is installed at the light outlet 3. After that, a light source (such as a light emitting diode) is arranged at the light inlet 2. After the light emitted by the light source is irradiated on the reflector 7, it is irradiated on the convex lens 14. The convex lens 14 disperses the light to form parallel light and emit it outside the shell body 1. Since the side wall A4 in this application is parallel to the light inlet 2 and the light outlet 2, the convex lens 14 is provided. The relative positional relationship between the light inlet 2 and the light outlet 3 is already set, so after the shell body 1 is manufactured, it is convenient for workers to install the convex lens 14, the reflector 7, and the light source in the shell body 1. The workers do not need to measure or other methods. They only need to attach the reflector 7 to the side wall A4, and then install the light source outside the shell body 1. At the same time, ensure that the light emitted by the light source can enter the shell body 1 from the light inlet 2 and that the light is parallel to the axis of the light inlet 2. The convex lens 14 can be installed at the light outlet 3, which saves the measurement process and is very convenient. Due to the setting of the reflector 7, the light inlet 2 and the light outlet 3 are not in the same straight line. When the shell body 1 is hit, the shell body 1 will be separated from (and deviated from) the light source. The direction of the impact force will not be directly toward the light source, thereby preventing the light source from being hit.

[0026] As a preferred embodiment, the projection of the side wall A4 on a plane perpendicular to the axis of the light inlet 2 surrounds the light inlet 2, and the projection of the side wall A4 on a plane perpendicular to the axis of the light outlet 3 is located within the projection of the light outlet 3 on a plane perpendicular to the axis of the light outlet 3. With this arrangement, all light entering the housing body 1 from the light inlet 2 and parallel to the axis of the light inlet 2 can be illuminated by the reflector 7 mounted on the side wall A4. At the same time, light parallel to the axis of the light outlet 3 reflected by the reflector 7 mounted on the side wall A4 will also be directly emitted from the light outlet 3. This avoids the occurrence of insufficient light.

[0027] As a preferred embodiment, the side wall of the shell body 1 parallel to the axis of the light inlet 2 is a shell cover 6, which is detachably mounted on the shell body 1. The shell body 1 is provided with a mounting groove 7 at the light outlet 2, and each of the two opposing inner side walls within the light outlet 3 is provided with a first slot 8. The projections of the two first slots 8 on the side wall of the shell body 1 facing away from the shell cover 6 are both U-shaped, with the U-shaped openings of the two first slots 8 facing each other, and the connecting line segment between the two first slots 8 is perpendicular to the axis of the light outlet 3. The provision of the shell cover 6 makes it convenient for workers to install the convex lens 14 and the reflector 7 when manufacturing the photoelectric sensor; the provision of the first slot 8 is to facilitate the installation of the convex lens 14 at the light outlet 3, and the U-shaped design of the first slot 8 facilitates the clamping of the convex lens 14.

[0028] As a preferred embodiment, a second slot 9 with an opening toward the shell cover 6 is provided on the side wall of the shell body 1 facing away from the shell cover 6. The length of the second slot 9 is parallel to the side wall A4. The shell cover 6 is provided with a protrusion 10 that cooperates with the second slot 9. The second slot 9 is provided to facilitate the installation of the reflector 7. The protrusion 10 is provided to support the reflector 7 located in the second slot 9, so that the reflector 7 is clamped and fixed by the protrusion 10 and the bottom wall of the second slot 9. As a preferred embodiment, the protrusion 10 is made of rubber, which makes the protrusion 10 have a certain elasticity, thereby preventing the protrusion 10 from damaging the reflector 7 during the process of closing the shell cover 6.

[0029] As a preferred embodiment, an end block 11 is provided at each end of the second slot 9 on the side wall A4 of the housing body 1 facing away from the housing cover 6. The intersection of all virtual straight lines starting from the edge of the light inlet 2 and parallel to the axis of the light inlet 2 with the side wall A4 is between the two end blocks 11. The intersection of all virtual straight lines starting from the edge of the light outlet 3 and parallel to the axis of the light outlet 3 with the side wall A4 is between the two end blocks 11. The provision of the blocks 11 further constrains the reflector 7 after the housing cover 6 is placed on the housing body 1, preventing it from sliding within the second slot 9 along its length.

[0030] As a preferred embodiment, the side wall of the housing body 1 is provided with a positioning post 12 perpendicular to the housing cover 6, and the housing cover 6 is provided with a positioning hole 13 that cooperates with the positioning post 12. The positioning hole 13 and the positioning post 12 facilitate workers to put the housing cover 6 into place on the housing body 1 during assembly.

[0031] As a preferred embodiment, the shell body 1 and the shell cover 6 are locked together by bolts.

[0032] As a preferred embodiment, the angle A between the axis of the light inlet 2 and the axis of the light outlet 3 is less than 90 degrees, and the angle B16 between the plane of the housing body 1 on which the light inlet 2 is provided and the plane on which the light outlet 3 is provided is an obtuse angle. With this arrangement, during use, the end of the housing body 1 on which the light inlet 2 is provided is fixed (e.g., by bolting) to a production line bracket, with the light inlet 2 on the housing body 1 facing downward. When the housing body 1 is subjected to an impact force directed toward the light outlet 3, because the angle B16 between the plane of the housing body 1 on which the light inlet 2 is provided and the plane on which the light outlet 3 is provided is an obtuse angle, when the plane of the housing body 1 on which the light outlet 3 is provided is a vertical plane, the plane of the housing body 1 on which the light inlet 2 is provided is an inclined plane, and is inclined downwardly, away from the light outlet. Therefore, even if the top portion of the light source extends into the light inlet 2, the housing body 1 can easily fall off the light source, thereby preventing damage to the light source or reducing the risk of the light source being impacted.

Claims

1. A mounting shell for manufacturing a photoelectric sensor transmitting end, characterized in that: The invention comprises a shell body (1), wherein the shell body (1) is provided with a light inlet (2) and a light outlet (3), an axis of the light inlet (2) and an axis of the light outlet (3) have an included angle and are located in the same plane A (5), an included angle between the axis of the light inlet (2) and a side wall A (4) in the shell body (1) facing away from the light outlet (3) is equal to an included angle between the axis of the light outlet (3) and the side wall A (4) in the shell body (1) facing away from the light outlet (3), a distance from an intersection of the axis of the light inlet (2) and the side wall A (4) to the light inlet (2) is less than a distance from an intersection of the axis of the light outlet (3) and the side wall A (4) to the light inlet (2), and the side wall A (4) is perpendicular to the plane A (5).

2. The mounting shell for manufacturing a photoelectric sensor transmitting end according to claim 1, characterized in that: The projection of the side wall A (4) on a plane perpendicular to the axis of the light inlet (2) surrounds the light inlet (2), and the projection of the side wall A (4) on a plane perpendicular to the axis of the light outlet (3) is located within the projection of the light outlet (3) on a plane perpendicular to the axis of the light outlet (3).

3. The mounting shell for manufacturing a photoelectric sensor transmitting end according to claim 1, characterized in that: The side wall of the shell body (1) parallel to the axis of the light inlet (2) is a shell cover (6), and the shell cover (6) is detachably covered on the shell body (1). A first slot (8) is respectively provided on two opposite inner side walls in the light outlet (3), and the projections of the two first slots (8) on the side wall in the shell body (1) facing away from the shell cover (6) are both U-shaped, and the U-shaped openings of the two first slots (8) face each other, and the connecting line segment between the two first slots (8) is perpendicular to the axis of the light outlet (3).

4. The mounting shell for manufacturing a photoelectric sensor transmitting end according to claim 3, characterized in that: A second slot (9) with an opening toward the shell cover (6) is provided on the side wall of the shell body (1) facing away from the shell cover (6), the length line of the second slot (9) is parallel to the side wall A (4), and a protrusion (10) is provided on the shell cover (6) to cooperate with the second slot (9).

5. The mounting shell for manufacturing a photoelectric sensor transmitting end according to claim 4, characterized in that: An end block (11) is provided at each end of the second slot (9) on the side wall A (4) in the shell body (1) facing away from the shell cover (6), and all virtual straight lines starting from the edge of the light inlet (2) and parallel to the axis of the light inlet (2) intersect with the side wall A (4) between the two end blocks (11), and all virtual straight lines starting from the edge of the light outlet (3) and parallel to the axis of the light outlet (3) intersect with the side wall A (4) between the two end blocks (11).

6. The mounting shell for manufacturing a photoelectric sensor transmitting end according to claim 3, characterized in that: A positioning column (12) perpendicular to the shell cover (6) is provided on the side wall of the shell body (1), and a positioning hole (13) cooperating with the positioning column (12) is provided on the shell cover (6).

7. The mounting shell for manufacturing a photoelectric sensor transmitting end according to claim 6, characterized in that: The shell body (1) and the shell cover (6) are locked together by bolts.

8. The mounting shell for manufacturing a photoelectric sensor transmitting end according to claim 1, characterized in that: The included angle A between the axis of the light inlet (2) and the axis of the light outlet (3) is less than ninety degrees, and the included angle B (16) between the plane on which the light inlet (2) is arranged and the plane on which the light outlet (3) is arranged on the shell body (1) is an obtuse angle.

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