CN212207709U - Light curtain structure - Google Patents
Light curtain structure Download PDFInfo
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- CN212207709U CN212207709U CN202020896118.8U CN202020896118U CN212207709U CN 212207709 U CN212207709 U CN 212207709U CN 202020896118 U CN202020896118 U CN 202020896118U CN 212207709 U CN212207709 U CN 212207709U
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- sealing cover
- wiring
- light curtain
- sealed lid
- leakage
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Abstract
The utility model relates to a waterproof light curtain, in particular to light curtain structure has solved light curtain waterproof sealing's problem. Place the circuit subassembly in the casing in including the casing and in, the casing cup joints transparent pipe spare outward, the transparent pipe spare both ends are equipped with the sealed lid of wiring and the sealed lid of leak protection respectively, the sealed lid of wiring is equipped with screw and gasket with the sealed lid of leak protection, the sealed lid of wiring is equipped with outside for the end face outside the circle with the sealed lid of leak protection, and the end face outside the circle of the sealed lid of wiring and the sealed lid of leak protection is higher than transparent pipe spare both sides opening place annular terminal surface respectively a little and is in transparent pipe spare. The sealed lid of wiring and the sealed lid of leak protection lean on outer terminal surface one side outer fringe of circle to be the stair shape structure, form labyrinth seal structure through stair structure and pouring sealed glue, sealed glue covers the screwed connection department simultaneously, ensures that the light curtain surface is seamless again, has improved leakproofness and waterproof nature greatly, and structural design links up, ingenious, has practicality and economic nature.
Description
Technical Field
The utility model relates to a waterproof light curtain, in particular to light curtain structure.
Background
The waterproof grade of the light curtain sensor on the market is lower, and most of the light curtain sensor is at the IP65 level. For some humid or water-permeable use environments, the service life of the light curtain sensor is greatly influenced, and the circuit is easy to fail due to water permeation. At present, a part of waterproof light curtain is also arranged, the outside of the light curtain is sleeved with a transparent pipe fitting, but the design on the sealing structures at the two ends of the transparent pipe fitting is too complex, the installation is complicated, the positioning is inaccurate, and the waterproof performance is very limited. After long-term use, any gap between the inside and the outside can be leaked, rusted and the like.
SUMMERY OF THE UTILITY MODEL
Not enough to current technique, the utility model provides a light curtain structure.
In order to realize the purpose, the utility model adopts the technical scheme that: a light curtain structure comprises a shell and a circuit assembly arranged in the shell, wherein a transparent pipe fitting is sleeved outside the shell, a wiring sealing cover and a leakage-proof sealing cover are respectively arranged at two ends of the transparent pipe fitting, screws and gaskets are arranged on the wiring sealing cover and the leakage-proof sealing cover, the outward sides of the wiring sealing cover and the leakage-proof sealing cover are round outer end faces, and the round outer end faces of the wiring sealing cover and the leakage-proof sealing cover are slightly higher than the annular end faces where two side openings of the transparent pipe fitting are located respectively and are located in the transparent pipe fitting;
the outer edges of one sides of the wiring sealing cover and the anti-leakage sealing cover, which are close to the round outer end faces, are of stepped structures, positioning grooves are formed in the outer edges of the sides of the wiring sealing cover and the anti-leakage sealing cover, and screw holes for mounting screws and gaskets are formed in the bottoms of the positioning grooves;
and a sealing adhesive layer is respectively filled between the wiring sealing cover and the leakage-proof sealing cover and the inner wall of the transparent pipe fitting, and the height of the sealing adhesive layer is at least different from the distance from the lowest step to the highest step on the outer edge of one side of the outer end face of the wiring sealing cover/leakage-proof sealing cover circle.
Preferably, the sealant layer is formed by pouring epoxy resin material.
Preferably, the groove wall of the positioning groove is an arc surface, at least part of the gasket is abutted against the groove wall of the positioning groove, and the gasket is radially blocked and limited against the groove wall of the positioning groove.
Preferably, the contour line of the notch of the positioning groove is fused with the contour line of the outer end face of the circle, and the positioning groove is provided with a notch for pouring the sealant to flow in.
Preferably, sealing rings are arranged between the outer walls of the wiring sealing cover and the leakage-proof sealing cover and the inner wall of the transparent pipe fitting, and the sealing rings are arranged on one side, close to the shell, of the sealing adhesive layer in the axial direction of the transparent pipe fitting.
The utility model has the advantages that: the utility model provides a light curtain structure passes through the stair structure and fills sealed glue formation labyrinth seal structure, and sealed glue covers screwed connection department simultaneously, ensures that the light curtain surface is seamless again, has improved leakproofness and waterproof nature greatly, and structural design links up, ingenious, has practicality and economic nature.
Drawings
FIG. 1 is a schematic structural view of the connection sealing cap of the present invention after pouring;
fig. 2 is a schematic view of the structure of the leakage-proof sealing cover end of the present invention before filling.
Detailed Description
As shown in fig. 1-2, a light curtain structure comprises a shell and a circuit assembly arranged in the shell, wherein a transparent pipe fitting 1 is sleeved outside the shell, a wiring sealing cover 2 and a leakage-proof sealing cover 3 are respectively arranged at two ends of the transparent pipe fitting 1, and a screw 4 and a gasket 5 are arranged on the wiring sealing cover 2 and the leakage-proof sealing cover 3. The receiving and the transmission of the infrared light are not influenced through the transparent pipe fitting 1, and all possible water seepage or water leakage parts except two ends are solved. The wiring sealing cover 2 and the leakage-proof sealing cover 3 are used for fixedly connecting the shell and the end cover of the connecting circuit, but only the wiring sealing cover 2 is provided with a wiring terminal, and the leakage-proof sealing cover 3 is only used for stopping leakage at the other end. This is a mature technical structure, and is the current situation of most waterproof light curtain products, and is not set forth or limited herein.
The outward sides of the wiring sealing cover 2 and the leakage-proof sealing cover 3 are round outer end faces 7, and the round outer end faces 7 of the wiring sealing cover 2 and the leakage-proof sealing cover 3 are slightly higher than the annular end faces of the openings at the two sides of the transparent pipe fitting 1 respectively and are positioned in the transparent pipe fitting 1;
the outer edges of one sides, close to the round outer end faces 7, of the wiring sealing covers 2 and the anti-leakage sealing covers 3 are of stepped structures, positioning grooves 8 are formed in the outer edges of the sides of the wiring sealing covers 2 and the anti-leakage sealing covers 3, and screw holes for mounting screws 4 and gaskets 5 are formed in the bottoms of the positioning grooves 8. The design of constant head tank 8 lies in accelerating installation rate, plays the effect of quick location. The structure has the advantages of being beneficial to strengthening the structural strength, effectively resisting the vibration in the radial direction and avoiding the looseness and deviation after long-term use.
And a sealing adhesive layer 6 is poured between the wiring sealing cover 2 and the leakage-proof sealing cover 3 and the inner wall of the transparent pipe fitting 1 respectively, and the height of the sealing adhesive layer 6 is at least different from the lowest step to the highest step surface distance of the outer edge of one side of the round outer end surface 7 of the wiring sealing cover 2/the leakage-proof sealing cover 3. The sealant layer 6 is formed by pouring an epoxy resin material, and the epoxy resin is thermosetting resin, so that the sealant layer is low in cost and has excellent corrosion resistance and water resistance.
The groove wall of the positioning groove 8 is a cambered surface, and the gasket 5 and the groove wall of the positioning groove 8 are radially blocked and limited. The movement of the gasket 5 is limited by the cambered surface abutment, and the positioning groove 8 may be of a fan-shaped structure or a quincunx structure, which will not be explained or limited herein. The contour line of the notch of the positioning groove 8 is fused with the contour line of the round outer end face 7, and the positioning groove 8 is provided with a notch for pouring sealant to flow in. So that the sealing glue layer 6 also fully covers the screw 4, and the screw 4 is also prevented from being corroded, rusted and waterproofed.
The utility model has the advantages that: the utility model provides a light curtain structure passes through the stair structure and fills sealed glue formation labyrinth seal structure, and sealed glue covers screwed connection department simultaneously, ensures that the light curtain surface is seamless again, has improved leakproofness and waterproof nature greatly, and structural design links up, ingenious, has practicality and economic nature.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, and are only for convenience of description, and are not intended to indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and therefore, are not to be considered as limitations of the present invention, and the fundamental principles, main features, and advantages of the present invention have been shown and described above, as would be understood by those skilled in the art.
Claims (5)
1. A light curtain structure comprises a shell and a circuit assembly arranged in the shell, wherein a transparent pipe fitting is sleeved outside the shell, a wiring sealing cover and a leakage-proof sealing cover are respectively arranged at two ends of the transparent pipe fitting, and are provided with screws and gaskets;
the outer edges of one sides of the wiring sealing cover and the anti-leakage sealing cover, which are close to the round outer end faces, are of stepped structures, positioning grooves are formed in the outer edges of the sides of the wiring sealing cover and the anti-leakage sealing cover, and screw holes for mounting screws and gaskets are formed in the bottoms of the positioning grooves;
and a sealing adhesive layer is respectively filled between the wiring sealing cover and the leakage-proof sealing cover and the inner wall of the transparent pipe fitting, and the height of the sealing adhesive layer is at least different from the distance from the lowest step to the highest step on the outer edge of one side of the outer end face of the wiring sealing cover/leakage-proof sealing cover circle.
2. The light curtain structure as claimed in claim 1, wherein the sealant layer is formed by epoxy resin material infusion.
3. The light curtain structure as claimed in claim 1 or 2, wherein the groove wall is a curved surface, the gasket is at least partially abutted against the groove wall, and the gasket is radially retained and limited against the groove wall.
4. The light curtain structure as claimed in claim 3, wherein the notch contour of the positioning groove is merged with the contour of the round outer end face, and the positioning groove is provided with a notch for pouring the sealant.
5. The light curtain structure as claimed in claim 4, wherein sealing rings are disposed between the outer walls of the wiring sealing cover and the leak-proof sealing cover and the inner wall of the transparent tube, and the sealing rings are disposed on the side of the sealing adhesive layer adjacent to the housing in the axial direction of the transparent tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020896118.8U CN212207709U (en) | 2020-05-15 | 2020-05-15 | Light curtain structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020896118.8U CN212207709U (en) | 2020-05-15 | 2020-05-15 | Light curtain structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212207709U true CN212207709U (en) | 2020-12-22 |
Family
ID=73812797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020896118.8U Active CN212207709U (en) | 2020-05-15 | 2020-05-15 | Light curtain structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212207709U (en) |
Cited By (1)
| 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 |
-
2020
- 2020-05-15 CN CN202020896118.8U patent/CN212207709U/en active Active
Cited By (1)
| 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 |
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