Reflection type photoelectric sensor

Abstract

The utility model discloses a reflection-type photoelectric sensor, which comprises a reflection-type photoelectric sensor body and a protection structure, and is characterized in that the middle position of the bottom of the reflection-type photoelectric sensor body is fixedly connected with a connecting end, and the connecting end is connected with an electronic element of the reflection-type photoelectric sensor body; the protection structure comprises a fixing frame arranged outside the reflective photoelectric sensor body, a preformed hole formed in one side of the fixing frame, a protection part fixed to the top end of the fixing frame, a through cavity vertically formed in the fixing frame and a shielding part arranged in the bottom end of the fixing frame, the through cavity and the protection part are concentric, and the protection part penetrates through the connecting end; and the protection part is used for protecting the connecting end cover. According to the utility model, the protection part at the bottom of the fixing frame is utilized to cover the connecting end, so that the connecting end is protected, and the phenomenon that the connecting end is inclined due to collision of an object and is further damaged is avoided.

Description

Technical Field

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

[0002] Reflective photoelectric sensors are photoelectric sensors that install the transmitter and receiver in the same device, install a reflector in front of it, and use the reflection principle to complete the photoelectric control function. It can be used to detect changes in the brightness and color of the ground, and can also detect whether there are approaching objects.

[0003] In the reflective photoelectric sensors currently on the market, since the connection ends are exposed, they may tilt or deform when hit, thus causing the entire reflective photoelectric sensor to be damaged and unusable. Utility Model Content

[0004] The utility model aims to provide a reflective photoelectric sensor to solve the problem in the background art that the reflective photoelectric sensor may tilt or deform when hit due to the exposed connection end, thereby damaging the entire reflective photoelectric sensor and making it unusable.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a reflective photoelectric sensor, comprising: a reflective photoelectric sensor body and a protective structure, wherein a connecting end is fixedly connected at the middle position of the bottom of the reflective photoelectric sensor body, and the connecting end is connected to the electronic component of the reflective photoelectric sensor body; the protective structure is arranged on the outside of the reflective photoelectric sensor body, and the protective structure includes a fixing frame arranged outside the reflective photoelectric sensor body, a reserved hole opened on one side of the fixing frame, a protective part fixed on the top of the fixing frame, a through cavity vertically opened on the fixing frame, and a shielding part arranged inside the bottom of the fixing frame, and the through cavity and the protective part are concentric circles, and the protective part runs through the connecting end, and the protective part is used to cover the connecting end to protect it.

[0006] Preferably, the protection structure further comprises limit plates fixed at both ends of one side of the reflective photoelectric sensor body, and one side of the fixing frame is slidably inserted between the two limit plates.

[0007] Preferably, the protection structure further comprises a groove opened on the limit plate toward the approaching groove, bayonet grooves opened on both sides of the fixing frame, a spring fixedly welded to the inner wall of the groove, and a clamping block welded and fixed to one end of the spring.

[0008] Preferably, the protection part includes a cage tube fixed on the fixing frame and an insertion hole opened at the bottom end of the reflective photoelectric sensor body, and the diameter of the insertion hole is equal to the diameter of the cage tube.

[0009] Preferably, the shielding portion includes a slide groove opened inside the bottom end of the fixing frame, a clamping groove opened on one side of the through cavity and one side of the slide groove, and a baffle sliding in the slide groove.

[0010] Preferably, elastic blocks adapted to the slots are integrally formed on both sides of the baffle.

[0011] Compared with the prior art, the beneficial effects of the utility model are: firstly, the protective part at the bottom of the fixing frame is utilized to cover the connecting end, thereby protecting the connecting end and preventing the connecting end from tilting due to collision with an object, thereby causing damage; secondly, the baffle plate is utilized to facilitate blocking the through cavity, so that the connecting end is completely covered inside the covering tube and is completely blocked by the baffle plate at the bottom of the fixing frame, thus preventing damage caused by liquid entering the connecting end when the connecting end is not connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the main view state of the utility model;

[0013] Figure 2 This is a schematic diagram of a partial cross-sectional structure of the utility model in the main viewing state;

[0014] Figure 3 It is a schematic diagram of a partial cross-sectional structure of the utility model in a side view;

[0015] Figure 4 This is a schematic diagram of the front cross-sectional structure of the fixing frame of the utility model;

[0016] Figure 5 For the utility model Figure 3 The enlarged structural diagram at A in the middle;

[0017] Figure 6 For the utility model Figure 4 Enlarged structural diagram at B in the middle.

[0018] In the figure: 1. reflective photoelectric sensor body; 2. protection structure; 21. fixing frame; 22. protection part; 221. covering tube; 222. insertion hole; 23. limiting plate; 24. reserved hole; 25. bayonet slot; 26. clamping block; 27. spring; 28. groove; 29. ​​through cavity; 210. shielding part; 2101. clamping slot; 2102. slide slot; 2103. baffle; 3. connecting end. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] It should be noted that, in the description of the present invention, the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0021] Furthermore, it should be understood that for the sake of ease of description, the sizes of the various components shown in the drawings are not drawn according to actual proportions. For example, the thickness or width of certain layers may be exaggerated relative to other layers.

[0022] It should be noted that like reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined or described in one drawing, it will not require further detailed discussion and description in the description of the subsequent drawings.

[0023] See also Figure 1-6 The utility model provides an embodiment: a reflective photoelectric sensor, comprising: a reflective photoelectric sensor body 1 and a protective structure 2, a connecting end 3 is fixedly connected at the middle position of the bottom of the reflective photoelectric sensor body 1, and the electronic components inside the reflective photoelectric sensor body 1 are prior art and will not be described in detail here. And the connecting end 3 is connected to the electronic components of the reflective photoelectric sensor body 1; the protective structure 2 is arranged on the outside of the reflective photoelectric sensor body 1, and the protective structure 2 includes a fixing frame 21 arranged outside the reflective photoelectric sensor body 1, a reserved hole 24 opened on one side of the fixing frame 21, a protective part 22 fixed on the top of the fixing frame 21, a through cavity 29 vertically opened on the fixing frame 21, and a shielding part 210 arranged inside the bottom end of the fixing frame 21, and the through cavity 29 and the protective part 22 are concentric circles, and the protective part 22 runs through the connecting end 3, and the protective part 22 is used to cover the connecting end 3 to protect it. An anti-slip strip groove is opened at a position near the top of one side of the fixing frame 21, so that the fixing frame 21 can be manually pushed or pulled;

[0024] The protection structure 2 also includes a limit plate 23 fixed at both ends of one side of the reflective photoelectric sensor body 1, and one side of the fixing frame 21 is slidably inserted between the two limit plates 23. A U-shaped slide rail that is centrally symmetrical about the vertical center line of the reflective photoelectric sensor body 1 is provided on the side where the two limit plates 23 are close to each other, and both ends of the fixing frame 21 extend into the slide rail, so as to prevent the fixing frame 21 and the reflective photoelectric sensor body 1 from being separated; it also includes a groove 28 opened on the limit plate 23 to approach, a bayonet groove 25 opened on both sides of the fixing frame 21, a spring 27 fixedly welded to the inner wall of the groove 28, and a clamping block 26 welded and fixed to one end of the spring 27. During the sliding process of the fixing frame 21, the block 26 will be squeezed, and when the bayonet slot 25 and the block 26 are at corresponding positions, the block 26 is reset to be close to the bayonet slot 25 under the action of the spring 27. At this time, the block 26 is inserted into the bayonet slot 25 to fix the position of the fixing frame 21. When the fixing frame 21 is close to the bottom of the reflective photoelectric sensor body 1, the connecting end 3 is exposed to facilitate connection between the connecting end 3 and an external object. On the contrary, when the fixing frame 21 is away from the bottom of the reflective photoelectric sensor body 1, the protective part 22 covers the connecting end 3 to protect the connecting end 3; the protective part 22 includes a covering tube 221 fixed on the fixing frame 21 and an insertion hole 222 opened at the bottom end of the reflective photoelectric sensor body 1, and the diameter of the insertion hole 222 is equal to the diameter of the covering tube 221. The front view cross section of the insertion hole 222 is an inverted U-shape and does not penetrate the bottom of the reflective photoelectric sensor body 1. This avoids looseness between the connecting end 3 and the reflective photoelectric sensor body 1 and also prevents liquid from entering the reflective photoelectric sensor body 1 to a certain extent.

[0025] The shielding portion 210 includes a slide groove 2102 provided inside the bottom end of the fixing frame 21, a clamping groove 2101 provided on one side of the through cavity 29 and one side of the slide groove 2102, and a baffle 2103 sliding in the slide groove 2102. The size of the slide groove 2102 is adapted to the size of the baffle 2103, and the slide groove 2102 serves as a guide for the baffle 2103; elastic blocks adapted to the clamping groove 2101 are integrally formed on both sides of the baffle 2103. The baffle 2103 is made of plastic, and auxiliary grooves are provided at the bottom of the baffle 2103 and near both sides, so that the staff can push the baffle 2103 left and right with their fingers. The fingers contact the auxiliary grooves at the bottom of the baffle 2103 to slide the baffle 2103 left and right, so that the baffle 2103 blocks the through cavity 29 or opens the through cavity 29, so that the connecting end 3 can be completely covered in the covering tube 221, thereby preventing liquid from accidentally entering the connecting end 3 when not in use and causing damage to the connecting end 3.

[0026] Working principle: When in use, first slide the baffle 2103 to one side so that the baffle 2103 is fixed to the card slot 2101 on one side of the fixing frame 21, and the through cavity 29 is completely unobstructed; secondly, push the fixing frame 21 upward, and the bottom of the fixing frame 21 is close to the bottom of the reflective photoelectric sensor body 1, and the bottom of the connecting end 3 is exposed, and the fixing frame 21 is fixed to the position close to the bottom of the reflective photoelectric sensor body 1 by the spring 27 in cooperation with the card block 26 and the card slot 25; finally, use the screw to penetrate the reserved hole 24 to fix the reflective photoelectric sensor body 1 at the required installation position, and the connecting end 3 is connected to the power supply at this time, and the reflective photoelectric sensor body 1 is turned on, and the light beam in the reflective photoelectric sensor body 1 is emitted. After the light beam is irradiated on a reflective plate installed in front, it is refracted into the connecting end 3 through the principle of light refraction, so that the final data is transmitted to the display through the information transmission line, and the use of the reflective photoelectric sensor is finally completed.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A reflective photoelectric sensor, characterized in that: include: A reflective photoelectric sensor body (1), wherein a connection end (3) is fixedly connected at a middle position of the bottom of the reflective photoelectric sensor body (1), and the connection end (3) is connected to an electronic component of the reflective photoelectric sensor body (1); A protective structure (2) is arranged outside a reflective photoelectric sensor body (1), and comprises a fixing frame (21) arranged outside the reflective photoelectric sensor body (1), a reserved hole (24) opened on one side of the fixing frame (21), a protective portion (22) fixed to the top of the fixing frame (21), a through cavity (29) vertically opened on the fixing frame (21), and a shielding portion (210) arranged inside the bottom of the fixing frame (21), wherein the through cavity (29) and the protective portion (22) are concentric circles, and the protective portion (22) passes through the connection end (3), and the protective portion (22) is used to cover the connection end (3) to protect it.

2. A reflective photoelectric sensor according to claim 1, characterized in that: The protection structure (2) also includes limit plates (23) fixed to both ends of one side of the reflective photoelectric sensor body (1), and one side of the fixing frame (21) is slidably inserted between the two limit plates (23).

3. A reflective photoelectric sensor according to claim 2, characterized in that: The protection structure (2) further comprises a groove (28) provided on the limit plate (23) and arranged to approach the limit plate, bayonet grooves (25) provided on both sides of the fixing frame (21), a spring (27) fixedly welded to the inner wall of the groove (28), and a clamping block (26) welded and fixed to one end of the spring (27).

4. A reflective photoelectric sensor according to claim 1, characterized in that: The protection part (22) comprises a covering tube (221) fixed on a fixing frame (21) and an insertion hole (222) opened at the bottom end of the reflective photoelectric sensor body (1), and the diameter of the insertion hole (222) is equal to the diameter of the covering tube (221).

5. The reflective photoelectric sensor according to claim 1, characterized in that: The shielding portion (210) comprises a slide groove (2102) provided inside the bottom end of the fixing frame (21), a clamping groove (2101) provided on one side of the through cavity (29) and one side of the slide groove (2102), and a baffle (2103) sliding in the slide groove (2102).

6. A reflective photoelectric sensor according to claim 5, characterized in that: Elastic blocks adapted to the slots (2101) are integrally formed on both sides of the baffle (2103).

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