Reflection type photoelectric sensor

Abstract

The utility model discloses a reflective photoelectric sensor, which relates to the technical field of photoelectric sensors, and comprises a photoelectric sensor main body, a side fixing piece and a bending frame, the side fixing piece is fixed on the photoelectric sensor main body, an adjusting cavity channel is arranged between the photoelectric sensor main body and the bending frame, a support piece is fixed on the side fixing piece, and the bending frame is fixed on the side fixing piece. One end of the supporting piece is rotationally connected with the bending frame, a floating plate is arranged at the other end of the supporting piece in a sliding mode, a ball head is fixed to one end of the floating plate, a ball sleeve is movably embedded in the ball head and arranged on the bending frame in a sliding mode, and an adjusting structure is arranged between the bending frame and the ball sleeve. The photoelectric sensor main body can move in the adjusting cavity; according to the utility model, the rotation angles of the photoelectric sensor in the vertical direction and the horizontal direction are adjusted so as to meet the use requirements; and the adopted adjusting part can realize stepless gradual change adjustment, so that the adjusting precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photoelectric sensors, in particular to a reflective photoelectric sensor. Background Art

[0002] A reflective photoelectric sensor utilizes the reflective nature of light and consists of a transmitter and a receiver. The light signal emitted by the transmitter is reflected by an object and then received by the receiver. Since the transmitter and receiver are located on the same structure, the installation accuracy requirements are relatively high. For example, a mirror-reflective photoelectric sensor requires the reflector to be aligned with the sensor during installation so that the emitted light signal can be reflected by the reflector and accurately reach the receiver, thereby improving detection accuracy.

[0003] Current sensor installations use brackets with mounting holes, which are typically adjustable. Adjusting the sensor's relative position determines the mounting hole's position. Because the mounting hole and the locking screw have a free range of motion when fixed, careful fine-tuning is required. Once the position is determined and the screws are tightened, the holes can shift. Therefore, multiple tests are required to ensure they meet actual requirements, making the installation process more complex. Utility Model Content

[0004] The purpose of the utility model is to provide a reflective photoelectric sensor, which solves the problem that the illumination angle needs to be fine-tuned with high precision during installation, which makes the operation complicated.

[0005] The utility model solves the above-mentioned technical problems through the following technical solutions. The utility model includes a photoelectric sensor body, a side fixing part and a bending frame. The side fixing part is fixed on the photoelectric sensor body. An adjustment cavity is provided between the photoelectric sensor body and the bending frame. A supporting part is fixed on the side fixing part. One end of the supporting part is rotatably connected to the bending frame. A floating plate is slidably provided on the other end of the supporting part. A ball head is fixed on one end of the floating plate. A ball sleeve is movably embedded in the ball head. The ball sleeve is slidably provided on the bending frame. An adjustment structure is provided between the bending frame and the ball sleeve, which is used for the photoelectric sensor body to move in the adjustment cavity.

[0006] Preferably, a limiting block is fixed on the floating plate, a floating groove is provided on the floating plate for sliding of the limiting block and the floating plate, a resisting block is fixed on the floating plate, and a spring is fixed between the resisting block and the limiting block.

[0007] Preferably, a linear groove is provided on the bending frame, and a slider is slidably provided in the linear groove and fixed to the ball sleeve.

[0008] Preferably, the adjustment structure includes a short plate fixed on the bending frame, the short plate is rotatably connected to a vertical adjustment bolt, and the vertical adjustment bolt is threadedly connected to a threaded plate and fixed to the slider.

[0009] Preferably, a connecting plate is fixed to one end of the support, a shaft member is rotatably connected to the connecting plate, and the shaft member is connected to the bending frame.

[0010] Preferably, an offset groove is provided on the bending frame, a slider 2 is slidably provided on the offset groove, and the bending frame is provided with an offset structure for adjusting the movement of the slider 2 so that the photoelectric sensor body moves in the adjustment cavity.

[0011] Preferably, the offset structure includes an extension rod arranged on the slider 2, and a horizontal adjustment screw rotatably connected to the bending frame, the horizontal adjustment screw is threadedly connected to a screw block, the screw block is provided with a limiting groove, and one end of the extension rod is arranged in the limiting groove.

[0012] Preferably, a wing plate is provided on the lower side of the bending frame, the wing plate is in contact with the screw block, and a mounting hole is provided on the wing plate.

[0013] Preferably, the offset groove is in an arc shape, and the arc trajectory formed by the shaft member moving due to the rotation of the ball head and the ball sleeve is adapted to the offset groove.

[0014] Preferably, the extension rod is cylindrical, and the width of the limiting groove is adapted to the diameter of the extension rod.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. By adjusting the position of the ball sleeve in the vertical direction, the total length formed by the floating plate and the bracket is extended or shortened, thereby changing the inclination angle of the bracket. The vertical rotation angle of the photoelectric sensor body fixed to the bracket by the side fixing member is adjusted to meet the use requirements; and the adopted adjustment structure can be adjusted steplessly and gradually to improve the adjustment accuracy.

[0017] 2. By utilizing the ball joint structure of the ball head and the ball sleeve, combined with the setting of the offset groove, the shaft member can be adjusted to a certain angle in the horizontal direction, so that the photoelectric sensor body can be adjusted in two axial directions to further meet the needs of use. At the same time, the screw block and the horizontal adjustment screw used can be adjusted steplessly and gradually to improve the adjustment accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure;

[0020] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure;

[0021] Figure 4 for Figure 3 A schematic diagram of the enlarged structure at point A;

[0022] Figure 5 for Figure 3 A schematic diagram of the enlarged structure at point B;

[0023] The numbers in the figure represent:

[0024] 1. Photoelectric sensor body; 2. Side fixing member; 3. Support member; 4. Limiting block; 5. Floating plate; 6. Floating groove; 7. Stop block; 8. Spring; 9. Ball head; 10. Ball sleeve; 11. Threaded plate; 12. Bending frame; 13. Vertical adjustment bolt; 14. Connecting plate; 15. Shaft member; 16. Offset groove; 17. Extension rod; 18. Horizontal adjustment screw; 19. Screw block; 20. Limiting groove; 21. Wing plate. DETAILED DESCRIPTION

[0025] The above and other technical features and advantages of the present invention are described in more detail below with reference to the accompanying drawings.

[0026] Example 1

[0027] This embodiment provides a technical solution: a reflective photoelectric sensor, such as Figure 1 - Figure 4As shown, the photoelectric sensor comprises a main body 1, a side fixing member 2, and a bending frame 12. The side fixing member 2 is fixed to the main body 1 and has bolt fixing holes provided therein. Bolts pass through the fixing holes and secure the side fixing member 2. An adjustment channel is provided between the main body 1 and the bending frame 12. A support member 3 is fixed to the side fixing member 2. The side fixing member 2 and the support member 3 are integrally formed. One end of the support member 3 is rotatably connected to the bending frame 12, allowing the photoelectric sensor main body 1 on the side fixing member 2 to move. A floating plate 5 is slidably provided on the other end of the support member 3. A limiting block 4 is fixed to the floating plate 5. The limiting block 4 is T-shaped. The floating plate 5 has a floating groove 6 for sliding between the limiting block 4 and the floating plate 5. The limiting block 4 and the floating plate 5 are in close contact, thereby maintaining stable sliding. A stop block 7 is fixed to the floating plate 5. A spring 8 is fixed between the stop block 7 and the limiting block 4. When the support member 3 slides with the floating plate 5, the spring 8 is compressed or restored. A ball head 9 is fixed to one end of the floating plate 5, and a ball sleeve 10 is movably embedded in the ball head 9. The ball head 9 and the ball sleeve 10 are spherically hinged, and the area of ​​free movement is conical. The ball sleeve 10 is slidably mounted on a bending frame 12. The bending frame 12 has a linear groove, and a slider 1 is slidably mounted in the linear groove and fixed to the ball sleeve 10, so that the ball sleeve 10 can slide stably via the slider 1. An adjustment structure is provided between the bending frame 12 and the ball sleeve 10. The adjustment structure includes a short plate fixed to the bending frame 12, and a vertical adjustment bolt 13 is rotatably connected to the short plate. The vertical adjustment bolt 13 is threadedly connected to a threaded plate 11 and fixed to the slider 1. Therefore, when the slider 1 slides, the ball sleeve 10, through the ball head 9, the floating plate 5 and other structures, can realize the movable adjustment of the photoelectric sensor body 1 within the adjustment channel.

[0028] Optionally, a connecting plate 14 is fixed to one end of the support 3, and a shaft member 15 is rotatably connected to the connecting plate 14, and the shaft member 15 is connected to the bending frame 12. In this embodiment, the support 3 and the bending frame 12 are mainly for achieving the rotation connection condition, and other existing technical structures can be used to achieve the same function.

[0029] In this embodiment, when adjusting the illumination angle in the vertical direction of the photoelectric sensor body 1, the vertical adjustment bolt 13 is twisted by a wrench, so that the threaded plate 11 moves on the vertical adjustment bolt 13, so that the threaded plate 11 drives the ball head 9 to move through the ball sleeve 10 fixed by the slider, and the ball sleeve 10 and the ball head 9 rotate, so that the floating plate 5 connected to the ball head 9 slides with the support 3, and the spring 8 deforms under the action of the force, and its limiting block 4 and the resisting block 7 move relative to each other; at this time, the length formed by the support 3 and the floating plate 5 changes, so that under the premise that one end of the support 3 is rotatably connected to the bending frame 12, the inclination degree of the support 3 changes, so that the angle of the photoelectric sensor body 1 is adjusted, and the setting of the threaded plate 11 and the vertical adjustment bolt 13 can improve the adjustment precision.

[0030] Example 2

[0031] This embodiment is further optimized based on the first embodiment, and the parts that are the same as the above technical solutions will not be repeated here. Figure 1 - Figure 3 、 Figure 5 As shown, in order to better implement the present invention, the following configuration is particularly adopted:

[0032] The bending frame 12 is provided with an offset slot 16, on which a slider 2 is slidably mounted. The offset slot 16 is arc-shaped. When the ball head 9 and the ball sleeve 10 rotate, the movement trajectory of the shaft member 15 matches and coincides with the offset slot 16, thereby enabling the shaft member 15 to be adjusted horizontally. The bending frame 12 is provided with an offset structure. The offset structure includes an extension rod 17 mounted on the slider 2, and a horizontal adjustment screw 18 rotatably connected to the bending frame 12. A screw block 19 is threadedly connected to the horizontal adjustment screw 18. The screw block 19 has a limiting slot 20, within which one end of the extension rod 17 slides. The extension rod 17 is cylindrical, and the width of the limiting slot 20 matches the diameter of the extension rod 17. Rotating the horizontal adjustment screw 18 causes the screw block 19 to move, which in turn drives the slider 2 to move, thereby achieving angular movement of the photoelectric sensor body 1 on the horizontal plane within the adjustment cavity.

[0033] Optionally, a wing plate 21 is provided on the lower side of the bending frame 12 , and the wing plate 21 contacts the screw block 19 , thereby limiting the screw block 19 to achieve stable sliding. The wing plate 21 is provided with a mounting hole for mounting the wing plate 21 .

[0034] In this embodiment, when adjusting the direction on the horizontal plane of the photoelectric sensor body 1, the horizontal adjustment screw 18 is rotated by a wrench to move the screw block 19 on the horizontal adjustment screw 18, and the screw block 19 moves stably under the restriction of the wing plate 21, and the slider 2 slides in the offset groove 16. Due to the ball hinge setting of the ball head 9 and the ball sleeve 10, deflection is obtained; and the limiting groove 20 on the screw block 19 cooperates with the extension rod 17 to ensure that the slider 2 can achieve a certain range of adjustment.

[0035] The above description is merely a preferred embodiment of the present invention and is intended to be illustrative rather than restrictive of the present invention. Those skilled in the art will appreciate that many changes, modifications, and even equivalents may be made to the present invention within the spirit and scope of the claims, and all of these changes will fall within the scope of protection of the present invention.

Claims

1. A reflective photoelectric sensor, characterized in that: The invention comprises a photoelectric sensor body (1), a side fixing member (2) and a bending frame (12), wherein the side fixing member (2) is fixed on the photoelectric sensor body (1), an adjustment cavity is provided between the photoelectric sensor body (1) and the bending frame (12), a supporting member (3) is fixed on the side fixing member (2), one end of the supporting member (3) is rotatably connected to the bending frame (12), a floating plate (5) is slidably provided on the other end of the supporting member (3), a ball head (9) is fixed on one end of the floating plate (5), a ball sleeve (10) is movably embedded on the ball head (9), the ball sleeve (10) is slidably provided on the bending frame (12), and an adjustment structure is provided between the bending frame (12) and the ball sleeve (10), which is used for the photoelectric sensor body (1) to move in the adjustment cavity.

2. The reflective photoelectric sensor according to claim 1, wherein: A limiting block (4) is fixed on the floating plate (5), a floating groove (6) is provided on the floating plate (5) for sliding the limiting block (4) and the floating plate (5), a resisting block (7) is fixed on the floating plate (5), and a spring (8) is fixed between the resisting block (7) and the limiting block (4).

3. The reflective photoelectric sensor according to claim 2, wherein: A linear groove is provided on the bending frame (12), and a slider is slidably provided in the linear groove and fixed to the ball sleeve (10).

4. The reflective photoelectric sensor according to claim 3, wherein: The adjustment structure comprises a short plate fixed on the bending frame (12), a vertical adjustment bolt (13) being rotatably connected to the short plate, and a threaded plate (11) being threadedly connected to the vertical adjustment bolt (13) and fixed to the slider.

5. The reflective photoelectric sensor according to claim 1, wherein: A connecting plate (14) is fixed to one end of the support member (3), a shaft member (15) is rotatably connected to the connecting plate (14), and the shaft member (15) is connected to the bending frame (12).

6. The reflective photoelectric sensor according to claim 5, wherein: The bending frame (12) is provided with an offset groove (16), a slider 2 is slidably provided on the offset groove (16), and the bending frame (12) is provided with an offset structure for adjusting the movement of the slider 2 so that the photoelectric sensor body (1) moves in the adjustment cavity.

7. The reflective photoelectric sensor according to claim 6, wherein: The offset structure comprises an extension rod (17) arranged on the second slider, and a horizontal adjustment screw (18) rotatably connected to the bending frame (12), a screw block (19) being threadedly connected to the horizontal adjustment screw (18), a limiting groove (20) being formed on the screw block (19), and one end of the extension rod (17) being arranged in the limiting groove (20).

8. The reflective photoelectric sensor according to claim 7, wherein: A wing plate (21) is provided on the lower side of the bending frame (12), the wing plate (21) is in contact with the screw block (19), and a mounting hole is provided on the wing plate (21).

9. The reflective photoelectric sensor according to claim 7, wherein: The offset groove (16) is in an arc shape, and the arc trajectory formed by the shaft member (15) moving due to the rotation of the ball head (9) and the ball sleeve (10) is adapted to the offset groove (16).

10. The reflective photoelectric sensor according to claim 7, wherein: The extension rod (17) is cylindrical, and the width of the limiting groove (20) is adapted to the diameter of the extension rod (17).

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