Photoelectric speed sensor with protection mechanism

Abstract

The utility model relates to the technical field of sensors, and discloses a photoelectric speed sensor with a protection mechanism, which comprises a photoelectric speed sensor body, a protection frame is arranged outside the photoelectric speed sensor body, a protection connecting assembly is fixedly connected outside the protection frame, and a protection fixing assembly is arranged outside the protection connecting assembly. The beneficial effects of the photoelectric speed sensor are that through the cooperation of the protection frame, the protection connecting assembly, the protection fixing assembly and the magnetic attraction assembly, the photoelectric speed sensor body can play a stable protection effect, reduce loss and improve the use effect in the use process, and through the arrangement of the spring, the photoelectric speed sensor body can be prevented from being damaged. The H-shaped connecting block is not easy to slide and fall off when the H-shaped connecting block is fixed by the positioning block, so that the fixing effect is enhanced.

Description

Technical Field

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

[0002] Photoelectric speed sensor can measure various physical quantities such as speed, acceleration and displacement, and has the advantages of non-contact, wide speed measurement range, high accuracy, high resolution, high reliability and strong anti-interference ability. It is widely used. Photoelectric speed sensor is composed of an optical system and a large-area comb-shaped silicon photocell. Install the sensor on the car and point the lens at the ground illuminated by the light (no light is needed in sunny weather). When a car is driving, the chaotic patterns on the ground pass through the optical system, form an image on the photoelectric device, and scan the comb-shaped silicon photocell. After photoelectric conversion and spatial filtering, the photoelectric sensor outputs a periodic random narrowband signal. The fundamental frequency of the signal is proportional to the speed of the car, and each cycle strictly corresponds to a distance traveled on the ground. After preprocessing such as bandpass tracking filter and shaping, a pulse signal that changes with the speed of the car can be obtained. During the use of the photoelectric speed sensor, since its tube body is exposed to the outside for a long time, if there is interference or other conditions in the outside world, it may cause certain damage to the exposed tube body, which may cause interruption and error in data transmission in a minor way, or damage to the components inside the sensor body in a serious way. Therefore, a photoelectric speed sensor with a protective mechanism is needed.

[0003] Chinese patent CN205982309U discloses a locomotive photoelectric speed sensor with shaft end insulation. It includes a photoelectric speed sensor body, and is characterized in that: an insulating insert of a mounting hole is respectively embedded at the four corners of the rear side of the photoelectric speed sensor body, a positioning shaft is provided on the front side of the photoelectric speed sensor body, a universal joint is provided on the front side of the positioning shaft, an insulating square shaft is provided at the front end of the universal joint, an insulating insert is provided on the outer sleeve of the positioning shaft between the photoelectric speed sensor body and the universal joint, and an insulating seal is provided around the insulating insert of the positioning shaft located on the front side of the photoelectric speed sensor body. The patent has a simple structure and is easy to modify. When the mechanical, electrical and aging properties of the replaced insulating material meet the requirements of the original material, the insulation treatment of the shaft end of the photoelectric speed sensor housing needs to remove the original material and add insulating material. However, the patent does not have a protective effect. Therefore, during the use of the photoelectric speed sensor, the protection effect of the photoelectric speed sensor is reduced, thereby increasing the damage rate of the photoelectric speed sensor, thereby increasing the cost expenditure. Utility Model Content

[0004] The purpose of the utility model is to provide a photoelectric speed sensor with a protective mechanism in order to solve the above-mentioned problems. The device utilizes a protective frame, a protective connecting component, a protective fixing component and a magnetic suction component to achieve a protective effect on the photoelectric speed sensor during use, thereby solving the problems mentioned in the background technology.

[0005] In order to solve the above problems, the utility model provides a technical solution:

[0006] A photoelectric speed sensor with a protective mechanism comprises a photoelectric speed sensor body, a protective frame is arranged outside the photoelectric speed sensor body, a protective connecting component is fixedly connected to the outside of the protective frame, a protective fixing component is arranged outside the protective connecting component, and a magnetic attraction component is arranged inside the protective frame.

[0007] As a preferred solution of the utility model, the protective connection assembly includes a first connection plate, the first connection plate is fixedly connected to the outside of the protective frame, and a second connection plate is fixedly connected to a side of the protective frame away from the first connection plate.

[0008] As a preferred solution of the utility model, a connecting groove is provided inside the second connecting plate, an H-shaped connecting block is fixedly connected to the outside of the first connecting plate, and the side of the H-shaped connecting block away from the first connecting plate passes through the connecting groove, and two card slots are provided inside the H-shaped connecting block.

[0009] As a preferred solution of the utility model, the protective fixing assembly includes a fixing block, two of the fixing blocks are fixedly connected to the outside of the second connecting plate, and a plurality of springs are provided on the outside of the two fixing blocks.

[0010] As a preferred solution of the utility model, the H-shaped connecting block is externally slidably connected to two positioning blocks, the two positioning blocks are internally provided with T-shaped grooves, and the two positioning blocks and the H-shaped connecting block are docked through T-shaped grooves and card slots, and the two positioning blocks are externally fixedly connected to multiple mounting blocks, and each of the mounting blocks is fixedly connected to one end of the spring away from the fixed block.

[0011] As a preferred solution of the utility model, the magnetic attraction component includes a first magnet, two of the first magnets are arranged inside the first connecting plate, two second magnets are arranged inside the second connecting plate, and the two first magnets and the two second magnets attract each other.

[0012] The beneficial effects of the utility model are as follows: through the cooperation of the protection frame and the protection connection component, the protection fixing component and the magnetic suction component, the photoelectric speed sensor body can play a stable protection effect during use, reduce losses and improve the use effect; and through the setting of the spring, the positioning block can be prevented from sliding and falling off when fixing its H-shaped connection block, thereby enhancing the fixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] For ease of explanation, the present invention is described in detail by the following specific implementations and drawings.

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the protection frame of the utility model;

[0016] Figure 3 This utility model Figure 1 Enlarged view of point B in the middle;

[0017] Figure 4 This utility model Figure 1 Enlarged view of point A in the middle.

[0018] In the figure: 1. Photoelectric speed sensor body; 2. Protection frame; 3. Protection connection assembly; 31. First connection plate; 32. Second connection plate; 33. H-type connection block; 34. Card slot; 35. Connection slot; 4. Protection fixing assembly; 41. Fixing block; 42. Spring; 43. Mounting block; 44. Positioning block; 45. T-slot; 5. Magnetic attraction assembly; 51. First magnet; 52. Second magnet. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] Example:

[0021] See also Figure 1 - Figure 4The utility model provides a technical solution: a photoelectric speed sensor with a protective mechanism, comprising a photoelectric speed sensor body 1, a protective frame 2 is arranged outside the photoelectric speed sensor body 1, a protective connecting component 3 is fixedly connected to the outside of the protective frame 2, a protective fixing component 4 is arranged outside the protective connecting component 3, a magnetic suction component 5 is arranged inside the protective frame 2, the protective connecting component 3 comprises a first connecting plate 31, the first connecting plate 31 is fixedly connected to the outside of the protective frame 2, and a second connecting plate 3 is fixedly connected to the side of the protective frame 2 away from the first connecting plate 31 2. A connecting groove 35 is provided inside the second connecting plate 32. An H-shaped connecting block 33 is fixedly connected to the outside of the first connecting plate 31, and the side of the H-shaped connecting block 33 away from the first connecting plate 31 passes through the inside of the connecting groove 35. Two clamping grooves 34 are provided inside the H-shaped connecting block 33. The protective frame 2 is sleeved on the outside of the tube body, and then the H-shaped connecting block 33 connected to the first connecting plate 31 passes through the inside of the second connecting plate 32 through the connecting groove 35 provided on the second connecting plate 32, so that the clamping groove 34 on the H-shaped connecting block 33 is outside the second connecting plate 32 for connection.

[0022] Furthermore, the protective fixing assembly 4 includes a fixing block 41, two fixing blocks 41 are fixedly connected to the outside of the second connecting plate 32, a plurality of springs 42 are arranged on the outside of the two fixing blocks 41, the outside of the H-shaped connecting block 33 is slidably connected to two positioning blocks 44, the inside of the two positioning blocks 44 are provided with a T-shaped slot 45, and the two positioning blocks 44 and the H-shaped connecting block 33 are docked with the card slot 34 through the T-shaped slot 45, and the outside of the two positioning blocks 44 is fixedly connected to a plurality of mounting blocks 43, and each mounting block 43 is fixedly connected to one end of the spring 42 away from the fixing block 41, and when the H-shaped connecting block 33 passes through the connecting slot 35, the positioning block 44 will pass through the spring 42, so that The positioning block 44 moves toward the direction of the H-shaped connecting block 33. At this time, through the T-slot 45 provided in the positioning block 44 and the card slot 34 provided in the H-shaped connecting block 33, the positioning block 44 slides into the outside of the H-shaped connecting block 33 for docking, thereby forming a fixing effect. Through the setting of the spring 42, the positioning block 44 is not easy to slide or fall off when fixing the H-shaped connecting block 33, thereby enhancing the fixing effect. Therefore, through the cooperation of the protection frame 2 and the protection connection component 3, the protection fixing component 4 and the magnetic suction component 5, the photoelectric speed sensor body 1 can play a stable protection effect during use, reduce losses and improve the use effect.

[0023] Furthermore, the magnetic attraction component 5 includes a first magnet 51, two first magnets 51 are arranged inside the first connecting plate 31, and two second magnets 52 are arranged inside the second connecting plate 32, and the two first magnets 51 and the two second magnets 52 attract each other. Through the first magnet 51 arranged in the first connecting plate 31 and the second magnet 52 arranged in the second connecting plate 32, the first magnet 51 and the second magnet 52 attract each other, so that the first connecting plate 31 and the second connecting plate 32 are docked and connected to form a preliminary fixing effect.

[0024] In summary: when using the photoelectric speed sensor body 1, the user needs to install it to the corresponding position, and then the user needs to protect the tube body part of the photoelectric speed sensor body 1. First, the protection frame 2 is put on the outside of the tube body, and then the H-shaped connection block 33 connected to the first connection plate 31 passes through the second connection plate 32 through the connection groove 35 set on the second connection plate 32, so that the card groove 34 on the H-shaped connection block 33 is outside the second connection plate 32. At this time, the connection of the protection frame 2 is through the first magnet 51 set in the first connection plate 31 and the second magnet 52 set in the second connection plate 32. Through the attraction of the first magnet 51 and the second magnet 52, the first connection plate 31 and the second connection plate 32 are docked and connected to form a preliminary fixing effect. As a result, when the H-shaped connecting block 33 passes through the connecting groove 35, the positioning block 44 will move toward the direction of the H-shaped connecting block 33 through the spring 42. At this time, through the T-shaped groove 45 set in the positioning block 44 and the card groove 34 set in the H-shaped connecting block 33, the positioning block 44 slides into the outside of the H-shaped connecting block 33 for docking, forming a fixing effect. Through the setting of the spring 42, the positioning block 44 is not easy to slide or fall off when fixing the H-shaped connecting block 33, thereby enhancing the fixing effect. Therefore, through the cooperation of the protection frame 2 and the protection connection component 3, the protection fixing component 4 and the magnetic suction component 5, the photoelectric speed sensor body 1 can play a stable protection effect during use, reduce losses, and improve the use effect.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A photoelectric speed sensor with a protective mechanism, comprising a photoelectric speed sensor body (1), It is characterized in that A protective frame (2) is provided on the outside of the photoelectric speed sensor body (1), a protective connection component (3) is fixedly connected to the outside of the protective frame (2), a protective fixing component (4) is provided on the outside of the protective connection component (3), and a magnetic attraction component (5) is provided on the inside of the protective frame (2).

2. A photoelectric speed sensor with a protective mechanism according to claim 1, It is characterized in that The protective connection assembly (3) comprises a first connection plate (31), the first connection plate (31) being fixedly connected to the outside of the protective frame (2), and a second connection plate (32) being fixedly connected to a side of the protective frame (2) away from the first connection plate (31).

3. A photoelectric speed sensor with a protective mechanism according to claim 2, It is characterized in that A connecting groove (35) is provided inside the second connecting plate (32), an H-shaped connecting block (33) is fixedly connected to the outside of the first connecting plate (31), and a side of the H-shaped connecting block (33) away from the first connecting plate (31) passes through the inside of the connecting groove (35), and two clamping grooves (34) are provided inside the H-shaped connecting block (33).

4. A photoelectric speed sensor with a protective mechanism according to claim 1, It is characterized in that The protection fixing assembly (4) comprises a fixing block (41), wherein the two fixing blocks (41) are both fixedly connected to the outside of the second connecting plate (32), and a plurality of springs (42) are arranged outside the two fixing blocks (41).

5. A photoelectric speed sensor with a protective mechanism according to claim 3, It is characterized in that The H-shaped connecting block (33) is externally slidably connected to two positioning blocks (44), the interiors of the two positioning blocks (44) are each provided with a T-shaped slot (45), and the two positioning blocks (44) and the H-shaped connecting block (33) are butted against each other via the T-shaped slot (45) and the clamping slot (34), the exteriors of the two positioning blocks (44) are fixedly connected to a plurality of mounting blocks (43), and each mounting block (43) is fixedly connected to an end of a spring (42) away from the fixing block (41).

6. A photoelectric speed sensor with a protective mechanism according to claim 2, It is characterized in that The magnetic attraction component (5) comprises a first magnet (51), two of the first magnets (51) are arranged inside the first connecting plate (31), two second magnets (52) are arranged inside the second connecting plate (32), and the two first magnets (51) and the two second magnets (52) attract each other.

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