CN210120740U - Waterproof light curtain structure - Google Patents
Waterproof light curtain structure Download PDFInfo
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- CN210120740U CN210120740U CN201920857348.0U CN201920857348U CN210120740U CN 210120740 U CN210120740 U CN 210120740U CN 201920857348 U CN201920857348 U CN 201920857348U CN 210120740 U CN210120740 U CN 210120740U
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- light curtain
- sealing cover
- waterproof
- curtain structure
- protection tube
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Abstract
The utility model discloses a waterproof light curtain structure, which comprises a shell, a PCB board fixed in the shell, an infrared lamp connected on the PCB board, a transparent protection tube sleeved on the periphery of the shell, and a sealing cover arranged at the end part of the transparent protection tube; the annular groove is formed in the inner side of the sealing cover, the waterproof rubber ring is arranged in the annular groove, and the end portion of the transparent protection tube is embedded into the annular groove to form airtight connection of the transparent protection tube and the sealing cover. The utility model discloses effectively improve the waterproof nature of light curtain, the protection level can reach IP67, has guaranteed the light curtain can be long-time work in the water smoke environment. In addition, the waist-shaped hole is formed in the first fixing plate of the mounting support, and the angle of the light curtain can be selected according to needs, so that the light curtain can be mounted more flexibly and is more adaptive.
Description
Technical Field
The utility model relates to a light curtain field, the more specifically waterproof light curtain structure that says so.
Background
At present, most safety light curtains and measuring light curtain sensors are generally low in protection level, the highest protection level can only reach IP65, and even some parts of the highest protection level cannot reach the IP65 standard. For some medical, food and chemical industries, the phenomena of fog and water spraying can be involved on site, workers are required to work in cooperation with a machine or the light curtain is required to automatically measure, and therefore, an infrared light curtain sensor is required to be installed. However, the existing light curtain is low in waterproof grade, so that fog or water can easily enter the light curtain directly after working in the environment for a long time, and a circuit is failed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a waterproof light curtain structure.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a waterproof light curtain structure comprises a shell, a PCB fixed in the shell, an infrared lamp connected to the PCB, a transparent protection tube sleeved on the periphery of the shell, and a sealing cover arranged at the end part of the transparent protection tube; the inner side of the sealing cover is provided with an annular groove, a waterproof rubber ring is arranged in the annular groove, and the end part of the transparent protection tube is embedded into the annular groove to form airtight connection between the transparent protection tube and the sealing cover.
The further technical scheme is as follows: the sealing cover is provided with a step hole, a connecting hole is formed in the end portion of the shell and corresponds to the step hole, a waterproof gasket is arranged in the step hole, and the sealing cover is fixedly connected with the shell through an end cover screw connected to the step hole and the connecting hole.
The further technical scheme is as follows: and a waterproof aviation plug is arranged in the middle of the sealing cover at one end of the transparent protection tube.
The further technical scheme is as follows: an opening is formed in one side of the shell, an optical filter is fixedly connected to the opening, the infrared lamp is located on the inner side of the optical filter, and the light emitting portion of the infrared lamp faces towards the opening.
The further technical scheme is as follows: the shell is made of metal.
The further technical scheme is as follows: the shell is made of aluminum.
The further technical scheme is as follows: the mounting bracket is fixedly connected to the outer side of the sealing cover; the mounting bracket comprises a first fixing plate and a second fixing plate connected with the first fixing plate, a connecting groove is formed in the middle of the first fixing plate, and a bulge matched with the connecting groove is formed in the middle of the outer side of the sealing cover; the first fixing plate is further provided with a fixing hole used for being connected with the sealing cover, and the fixing hole is located on the outer edge of the connecting groove.
The further technical scheme is as follows: the fixing hole is a waist-shaped hole.
The further technical scheme is as follows: the second fixing plate is perpendicular to the first fixing plate; the second fixing plate is provided with a mounting hole.
The further technical scheme is as follows: the transparent protection tube is made of polycarbonate.
Compared with the prior art, the utility model beneficial effect be: the utility model provides a pair of waterproof light curtain structure through establishing transparent protection tube at the casing overcoat, offers the ring channel in the inboard of sealed lid in addition, sets up sealed rubber ring in the ring channel, and the tip of transparent protection tube imbeds in the ring channel to this realizes the sealing connection, has effectively improved the waterproof nature of light curtain, and the protection level can reach IP67, has guaranteed that the light curtain can be long-time work in the water smoke environment. In addition, the waist-shaped hole is formed in the first fixing plate of the mounting support, and the angle of the light curtain can be selected according to needs, so that the light curtain can be mounted more flexibly and is more adaptive.
The foregoing is a summary of the present invention, and other objects, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments, which is provided for the purpose of illustration and understanding of the present invention.
Drawings
Fig. 1 is an assembly view of a specific embodiment of a waterproof light curtain structure of the present invention;
fig. 2 is an exploded view of an embodiment of a waterproof light curtain structure of the present invention;
fig. 3 is a schematic structural view of a housing in an embodiment of a waterproof light curtain structure of the present invention;
fig. 4 is a schematic structural view of a sealing cover in an embodiment of the waterproof light curtain structure of the present invention.
Reference numerals
1. A housing; 11. connecting holes; 12. an opening; 2. a PCB board; 21. an infrared lamp; 3. an optical filter; 4. a transparent protective tube; 5. a sealing cover; 51. a stepped bore; 511. an end cap screw; 52. a protrusion; 53. an annular groove; 531. a waterproof rubber ring; 6. an aviation plug; 7. mounting a bracket; 71. a first fixing plate; 711. connecting grooves; 712. a fixing hole; 72. a second fixing plate; 721. and (7) installing holes.
Detailed Description
In order to more fully understand the technical content of the present invention, the technical solution of the present invention will be further described and illustrated with reference to the following specific embodiments, but not limited thereto.
It is to be understood that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity/action/object from another entity/action/object without necessarily requiring or implying any actual such relationship or order between such entities/actions/objects.
It should be further understood that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
As shown in fig. 1-4, the present invention provides a waterproof light curtain structure, which comprises a housing 1, a PCB 2 fixed in the housing 1, an infrared lamp 21 connected to the PCB 2, a transparent protection tube 4 covering the periphery of the housing 1, and a sealing cover 5 disposed at the end of the transparent protection tube 4; annular groove 53 is all seted up to the inboard of sealed lid 5, is equipped with waterproof rubber ring 531 in the annular groove 53, and the tip of transparent protection tube 4 imbeds in annular groove 53 to constitute the airtight connection of transparent protection tube 4 and sealed lid 5. The sealing cover 5 is provided with a stepped hole 51, a connecting hole 11 is provided at a position corresponding to the stepped hole 51 at the end of the housing 1, a waterproof gasket (not shown) is provided in the stepped hole 51, and the sealing cover 5 is fixedly connected to the housing 1 by a cover screw 511 connected to the stepped hole 51 and the connecting hole 11. An opening 12 is arranged on one side of the shell 1, the optical filter 3 is fixedly connected to the opening 12, the infrared lamp 21 is positioned on the inner side of the optical filter 3, and the light-emitting part of the infrared lamp 21 faces the opening 12.
Specifically, the infrared lamp 21 is inserted into the PCB 2 and then soldered. Preferably, the transparent protection tube 4 is a transparent PC tube, and most of the infrared light can penetrate through the tube wall to enable the infrared lamp 21 to effectively transmit and receive the infrared light due to the transparent PC tube. The shell 1 is made of aluminum and has certain hardness, the PCB 2 and the optical filter 3 are convenient to fix, the weight is light, and the weight of the whole light curtain is reduced. In order to improve the waterproof performance of the light curtain, an annular groove 53 is formed in the inner side of the sealing cover 5, a waterproof rubber ring 531 is arranged in the annular groove 53, after the transparent protection pipe 4 is combined with the sealing cover 5, the end part of the transparent protection pipe 4 is embedded into the annular groove 53, and then the transparent protection pipe is fixed with the sealing cover 5 through an end cover screw 511.
Furthermore, a waterproof aviation plug 6 is arranged in the middle of the sealing cover 5 at one end of the transparent protection tube 4. The waterproof aviation plug 6 is used for transmitting signals inside and outside the light curtain.
Further, the light curtain also comprises a mounting bracket 7 fixedly connected to the outer side of the sealing cover 5; the mounting bracket 7 comprises a first fixing plate 71 and a second fixing plate 72 connected with the first fixing plate 71, wherein a connecting groove 711 is formed in the middle of the first fixing plate 71, and a protrusion 52 matched with the connecting groove 711 is formed in the middle of the outer side of the sealing cover 5; the first fixing plate 71 is further provided with a fixing hole 712 for coupling with the sealing cover 5, and the fixing hole 712 is located at an outer edge of the coupling groove 711. The second fixing plate 72 is arranged perpendicular to the first fixing plate 71; the second fixing plate 72 is provided with a mounting hole 721. The transparent protection tube 4 is made of polycarbonate. Preferably, the fixing hole 712 is a kidney-shaped hole.
In this embodiment, four waist-shaped holes are formed in the first fixing plate 71, and the first fixing plate is symmetrically arranged in pairs, so that the light curtain can be installed in four different directions, and each direction can be adjusted by 15 degrees.
The technical content of the present invention is further described by the embodiments only, so that the reader can understand it more easily, but the embodiments of the present invention are not limited thereto, and any technical extension or re-creation according to the present invention is protected by the present invention. The protection scope of the present invention is subject to the claims.
Claims (10)
1. A waterproof light curtain structure is characterized by comprising a shell, a PCB fixed in the shell, an infrared lamp connected to the PCB, a transparent protection tube sleeved on the periphery of the shell, and a sealing cover arranged at the end part of the transparent protection tube; the inner side of the sealing cover is provided with an annular groove, a waterproof rubber ring is arranged in the annular groove, and the end part of the transparent protection tube is embedded into the annular groove to form airtight connection between the transparent protection tube and the sealing cover.
2. The waterproof light curtain structure as claimed in claim 1, wherein the sealing cover is provided with a stepped hole, a connecting hole is provided at a position corresponding to the stepped hole at the end of the housing, a waterproof gasket is disposed in the stepped hole, and the sealing cover is fixedly connected to the housing by an end cap screw connected to the stepped hole and the connecting hole.
3. The waterproof light curtain structure as claimed in claim 1, wherein the sealing cover at one end of the transparent protection tube is provided with a waterproof aviation plug at the middle portion thereof.
4. The waterproof light curtain structure as claimed in claim 1, wherein an opening is formed in one side of the housing, an optical filter is fixedly connected to the opening, the infrared lamp is located inside the optical filter, and a light emitting portion of the infrared lamp faces the opening.
5. The waterproof light curtain structure of claim 1 wherein the housing is metal.
6. The waterproof light curtain structure of claim 5 wherein the housing is aluminum.
7. The waterproof light curtain structure as claimed in claim 1, further comprising a mounting bracket fixedly attached to an outer side of the sealing cover; the mounting bracket comprises a first fixing plate and a second fixing plate connected with the first fixing plate, a connecting groove is formed in the middle of the first fixing plate, and a bulge matched with the connecting groove is formed in the middle of the outer side of the sealing cover; the first fixing plate is further provided with a fixing hole used for being connected with the sealing cover, and the fixing hole is located on the outer edge of the connecting groove.
8. The waterproof light curtain structure of claim 7 wherein the fixing holes are kidney-shaped holes.
9. The waterproof light curtain structure of claim 7 wherein said second retaining plate is disposed perpendicular to said first retaining plate; the second fixing plate is provided with a mounting hole.
10. The waterproof light curtain structure of claim 1 wherein the transparent protective tube is made of polycarbonate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920857348.0U CN210120740U (en) | 2019-06-06 | 2019-06-06 | Waterproof light curtain structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920857348.0U CN210120740U (en) | 2019-06-06 | 2019-06-06 | Waterproof light curtain structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210120740U true CN210120740U (en) | 2020-02-28 |
Family
ID=69615350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920857348.0U Active CN210120740U (en) | 2019-06-06 | 2019-06-06 | Waterproof light curtain structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210120740U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114585196A (en) * | 2022-03-01 | 2022-06-03 | 上海索迪龙自动化股份有限公司 | Sealing structure of safety light curtain |
| CN115684468A (en) * | 2021-07-26 | 2023-02-03 | 科瑞工业自动化系统（苏州）有限公司 | Electric tracing safety light curtain |
-
2019
- 2019-06-06 CN CN201920857348.0U patent/CN210120740U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115684468A (en) * | 2021-07-26 | 2023-02-03 | 科瑞工业自动化系统（苏州）有限公司 | Electric tracing safety light curtain |
| CN114585196A (en) * | 2022-03-01 | 2022-06-03 | 上海索迪龙自动化股份有限公司 | Sealing structure of safety light curtain |
| CN114585196B (en) * | 2022-03-01 | 2023-08-29 | 上海索迪龙自动化股份有限公司 | Sealing structure of safety light curtain |
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