Photoelectric sensor

Abstract

The utility model relates to the technical field of sensors, in particular to a photoelectric sensor. Comprising a sensor body, two locking devices are arranged outside the sensor body in a sleeving mode, each locking device comprises a frame body, first through holes are formed in the two sides of each frame body, the sensor further comprises a U-shaped clamp, each U-shaped clamp comprises a semicircular body, pull rods on the two sides of each semicircular body penetrate through the two corresponding first through holes respectively and then are connected with pressing plates, and the pressing plates are connected with the corresponding U-shaped clamp. A spring is arranged between the pressing plate and the frame body, one side, far away from the pressing plate, of the frame body is provided with an arc surface used for pressing the surface of the sensor body, one side, far away from the pressing plate, of the frame body is further provided with an opposite plate, and the opposite plate and the arc surface are located on the two sides of the sensor body respectively. When the device is fixed on the bracket, the time is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sensor technical field especially relates to a photoelectric sensor. BACKGROUND

[0002] Photoelectric sensor is a kind of device to convert optical signal into electrical signal, with high precision, fast reaction, non-contact and other advantages.Cylindrical photoelectric sensor of prior art, generally as shown in the patent with the application No.202222129457.5 named a kind of photoelectric sensor, external setting outer thread and two nuts, in use, sensor body is inserted into the through hole in support, after two nuts are clamped to support to fix sensor body, but when the length of the part provided with outer thread is longer, the number of nut rotation may be more, it is more time-consuming. UTILITY MODEL CONTENT

[0003] The utility model solves the technical problem existing in the above, provides a photoelectric sensor.

[0004] To solve the above technical problem, the technical scheme adopted by the utility model is: a photoelectric sensor, including sensor body, the outside of sensor body is equipped with two locking devices, the locking device includes frame body, the both sides of frame body are provided with first through hole, further including U type card, the U type card includes semicircular body, the pull rod of semicircular body both sides respectively from two first through holes passes and is connected with pressing plate, spring is arranged between pressing plate and frame body, the side, away from pressing plate of frame body, is provided with arc surface for pressing sensor body surface, the side, away from pressing plate of frame body, is also provided with opposite board, the opposite board and arc surface are located at the both sides of sensor body respectively.

[0005] Further optimize the technical scheme, the end, away from semicircular body of pull rod, is provided with outer thread part, the both ends of pressing plate are provided with second through hole respectively, the pull rod is connected with nut after passing through second through hole.

[0006] Further optimize the technical scheme, the side, away from arc surface of frame body, is provided with recess, first through hole passes from recess, spring is sleeved on the outside of pull rod and one end is located in recess.

[0007] Further optimize the technical scheme, the both ends of semicircular body are not at the same position in the axial direction of sensor body.

[0008] Compared with the prior art, the utility model has following advantages: the half circle body is far from the arc surface by holding the pressing plate and the opposite plate with hand, so that the locking device can be moved to the required position quickly, the spring is arranged between the frame body and the pressing plate of the locking device, so that the half circle body can be pulled to the direction of the arc surface after the hand is released, and then the half circle body and the arc surface press the two sides of the sensor body respectively, the locking device is fixed on the sensor body, the two locking devices are respectively close to the two sides of the support, the sensor body can be fixed on the support, and time is saved. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is a structural schematic view of a photoelectric sensor.

[0010] Figure 2 It is a structural schematic view of a locking device.

[0011] Figure 3 It is a structural schematic view of a frame body.

[0012] Figure 4 It is a side view of the locking device.

[0013] In the drawing: 1, sensor body;2, locking device;21, frame body;211, recess;212, arc surface;213, opposite plate;22, pressing plate;23, U-shaped card;231, half circle body;232, pull rod. DETAILED DESCRIPTION

[0014] In order to make the technical problem, technical scheme and beneficial effect solved by the utility model more clearly, the utility model is further explained in detail in the following with the drawings and examples. It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0015] DETAILED DESCRIPTION: in combination Figures 1-4As shown, a photoelectric sensor comprises a sensor body 1, a light emitting device, a light sensing device and a matching circuit board are arranged in the sensor body 1, two locking devices 2 are arranged outside the sensor body 1, the sensor body 1 can pass through the frame 21 of the locking device 2, first through holes are arranged on both sides of the frame 21, a U-shaped clamp 23 is arranged, the U-shaped clamp 23 comprises a semicircular body 231, the inner diameter of the semicircular body 231 is equal to or slightly larger than the outer diameter of the sensor body 1, the pull rods 232 on both sides of the semicircular body 231 pass through the two first through holes respectively and are connected with a pressing plate 22, preferably, the pull rods 232 are in sliding connection with the first through holes, a spring in a compressed state is arranged between the pressing plate 22 and the frame 21, an arc surface 212 for pressing the surface of the sensor body 1 is arranged on the side of the frame 21 away from the pressing plate 22, the radius of the arc surface 212 is equal to or slightly larger than the outer diameter of the sensor body 1, the central angle of the arc surface 212 is less than 180°, a counter plate 213 is further arranged on the side of the frame 21 away from the pressing plate 22, and the counter plate 213 and the arc surface 212 are arranged on both sides of the sensor body 1 respectively. In order to enhance the friction, the outer surface of the sensor body 1, the inner surface of the semicircular body 231 and the surface of the arc surface 212 can be rougher.

[0016] Specifically, an external thread part is arranged at the end of the pull rod 232 away from the semicircular body 231, second through holes are arranged at both ends of the pressing plate 22, and the pull rod 232 passes through the second through holes and is connected with a nut.

[0017] Further, a groove 211 is arranged on the side of the frame 21 away from the arc surface 212, the first through holes pass through the groove 211, the spring is sleeved outside the pull rod 232 and one end of the spring is located in the groove 211, and the spring exposed from the groove 211 is short.

[0018] Preferably, the two ends of the semicircular body 231 are not located at the same position in the axial direction of the sensor body 1. The extension direction of the semicircular body 231 is part of a cylindrical helix, and the length of the semicircular body 231 in the axial direction of the sensor body 1 is not greater than 0.5 times the pitch. So that the locking device 2 can be rotated around the axis of the sensor body 1, and the rotating locking device 2 can be moved in the axial direction of the sensor body 1.

[0019] During installation, one locking device 2 is removed from the sensor body 1, then the sensor body 1 is inserted into the through hole on the support and extends to the required distance, then the pressing plate 22 and the opposite plate 213 on the locking device 2 are pinched, so that the semicircular body 231 is away from the arc surface 212, then the locking device 2 is sleeved on the sensor body 1 and is attached to the support, then hands are released, the semicircular body 231 and the arc surface 212 press the two sides of the sensor body 1 respectively, the locking device 2 is fixed on the sensor body 1 and is not easy to move relative to each other, then the other locking device 2 is moved to be attached to the other side of the support, then hands are released to fix it, at this time, if there is a small gap between the locking device 2 and the support, the locking device 2 can be rotated by a certain angle to move to the direction of the support to be attached to the support.

[0020] The above merely describes the preferred embodiment of the present application and is not intended to limit the present application, and any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A photoelectric sensor, comprising a sensor body (1), characterized in that: The sensor body (1) is fitted with two locking devices (2). Each locking device (2) includes a frame (21), with first through holes on both sides of the frame (21) and a U-shaped clip (23). The U-shaped clip (23) includes a semicircular body (231). The pull rods (232) on both sides of the semicircular body (231) pass through the two first through holes and are connected to a pressure plate (22). A spring is provided between the pressure plate (22) and the frame (21). An arc surface (212) for pressing the surface of the sensor body (1) is provided on the side of the frame (21) away from the pressure plate (22). An opposing plate (213) is also provided on the side of the frame (21) away from the pressure plate (22). The opposing plate (213) and the arc surface (212) are located on both sides of the sensor body (1).

2. The photoelectric sensor according to claim 1, characterized in that: The pull rod (232) has an external thread at the end away from the semicircular body (231), and the pressure plate (22) has a second through hole at each end. The pull rod (232) passes through the second through hole and is connected to a nut.

3. A photoelectric sensor according to claim 1, characterized in that: The frame (21) has a groove (211) on the side away from the arc surface (212), the first through hole passes through the groove (211), and the spring is sleeved on the outside of the pull rod (232) with one end located in the groove (211).

4. A photoelectric sensor according to any one of claims 1-3, characterized in that: The two ends of the semicircular body (231) are not at the same position in the axial direction of the sensor body (1).

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