CN114585196A - Sealing structure of safety light curtain - Google Patents
Sealing structure of safety light curtain Download PDFInfo
- Publication number
- CN114585196A CN114585196A CN202210197779.5A CN202210197779A CN114585196A CN 114585196 A CN114585196 A CN 114585196A CN 202210197779 A CN202210197779 A CN 202210197779A CN 114585196 A CN114585196 A CN 114585196A
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- China
- Prior art keywords
- sealing
- optical filter
- light curtain
- shell
- safety light
- Prior art date
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Links
- 238000007789 sealing Methods 0.000 title claims abstract description 120
- 230000003287 optical effect Effects 0.000 claims abstract description 51
- 239000010410 layer Substances 0.000 claims description 11
- 239000012790 adhesive layer Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 abstract description 7
- 238000012360 testing method Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 9
- 239000003292 glue Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
- H05K5/061—Hermetically-sealed casings sealed by a gasket held between a removable cover and a body, e.g. O-ring, packing
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Casings For Electric Apparatus (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The application discloses seal structure of safe light curtain includes at least: the optical filter comprises a shell, an optical filter, two sealing gaskets, two end covers and two sealing strips; the optical filter used for transmitting the light path is arranged on one side of the shell; the two sealing gaskets are arranged at two ends of the shell; the two end covers are arranged on the outer sides of the corresponding sealing gaskets; the two sealing strips are oppositely arranged between the shell and the optical filter. The sealing gaskets realize sealing between the shell and the end covers and between the optical filter and the end covers; the sealing strip realizes the sealing between the shell and the optical filter; through waterproof test, this application can reach IP67 waterproof standard. Compared with the prior art, the method and the device can be applied to more environments.
Description
Technical Field
This application belongs to safe light curtain technical field, concretely relates to seal structure of safe light curtain.
Background
The safety light curtain is a photoelectric safety protection device, also called a safety protector, a punch press protector, an infrared safety protection device and the like. In a modern chemical plant, people and machines work cooperatively, on some mechanical equipment with potential risks, such as stamping machinery, shearing equipment, metal cutting equipment, automatic assembly lines, automatic welding lines, mechanical conveying and carrying equipment, dangerous areas and the like, a construction site which easily causes personal injury of operating personnel can be demarcated by utilizing a safety light curtain, and therefore the condition of casualties is avoided. The existing safety light curtain mostly adopts a sealing strip to seal the light filter, the assembly mode is complex, the installation is complex, the waterproof effect is poor after the installation, the sealing strip can not effectively laminate the light filter under the condition of foreign matters or unevenness, the waterproof effect of IP67 is difficult to realize, the product is easy to damp and scrapped, and the applicable scene is very limited.
Therefore, it is highly desirable to design a sealing structure of a safety light curtain, which is easy to install and can achieve the waterproof effect of IP67, so as to expand the applicable environment of the safety light curtain.
Disclosure of Invention
To overcome the above drawbacks and deficiencies of the prior art, the present application provides a sealing structure of a safety light curtain.
In order to solve the technical problem, the application is realized by the following technical scheme:
the application provides a seal structure of safe light curtain includes at least: the optical filter comprises a shell, an optical filter, two sealing gaskets, two end covers and two sealing strips; the optical filter used for light path transmission is arranged on one side of the shell; the two sealing gaskets are arranged at two ends of the shell; the two end covers are arranged on the outer sides of the corresponding sealing gaskets; the two sealing strips are oppositely arranged between the shell and the optical filter.
Further, the above sealing structure of the safety light curtain, wherein the housing comprises: the optical filter comprises a shell body, a clamping part, an internal frame and a bracket for mounting the optical filter; the clamping part, the bracket and the inner rack are respectively connected with the shell body from outside to inside; an accommodating cavity is formed between the internal frame and the shell body.
Further, the above sealing structure of the safety light curtain, wherein the housing further comprises: an external frame; the outer frame is arranged on the outer side of the shell body and opposite to the optical filter.
Further, in the sealing structure of the safety light curtain, a connecting piece is arranged on the bracket.
Further, the above sealing structure of the safety light curtain, wherein the connecting member comprises: the waterproof layer structure comprises an adhesive layer structure and a waterproof layer structure, wherein the adhesive layer structure is arranged on the outer side of the waterproof layer structure.
Further, in the sealing structure of the safety light curtain, a glue storage space is arranged on the bracket.
Further, in the sealing structure of the safety light curtain, the sealing pad is further provided with a sealing block, and the sealing block is arranged between the end cover and the optical filter.
Further, the sealing structure of the safety light curtain, wherein the sealing strip comprises: the clamping part and the sealing strip body are connected with each other; the clamping part is connected with the clamping part; and a sealing area of the optical filter is formed between the sealing strip body and the bracket.
Further, the sealing structure of the safety light curtain, wherein the clamping portion at least comprises: two oppositely arranged elastic arms; the connecting part of the elastic arm is connected with the sealing strip body, and a margin space is formed between the free parts of the two elastic arms.
Further, in the sealing structure of the safety light curtain, the sealing strip body has an inclined plane structure.
Compared with the prior art, the method has the following technical effects:
this application is used for the light filter that the light path permeates to set up in one side of casing, and two sealed pads set up in the both ends of casing, and two end covers set up in the sealed outside of filling up that corresponds, and two sealing strips set up relatively between casing and light filter. Through the arrangement, the sealing gaskets realize the sealing between the shell and the end cover and between the optical filter and the end cover; the sealing strip realizes the sealing between the shell and the optical filter; through waterproof test, this application can reach IP67 waterproof standard. Compared with the prior art, the method and the device can be applied to more environments.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
FIG. 1: an exploded schematic view of a sealing structure according to an embodiment of the present application;
FIG. 2: an exploded view of the end cap, the gasket, and the housing in an embodiment of the present application;
FIG. 3: an exploded view of the end cap, the gasket, and the housing in an embodiment of the present application;
FIG. 4: the structure of the shell in one embodiment of the application is schematically illustrated;
FIG. 5: a cross-sectional view of the structure shown in FIG. 4;
FIG. 6: a schematic cross-sectional view of two oppositely disposed sealing strips in one embodiment of the present application;
FIG. 7: the section schematic diagram of the combination of the sealing strip, the optical filter and the shell in one embodiment of the application;
FIG. 8: the combination of the end cap and the sealing gasket in one embodiment of the application is schematically shown;
FIG. 9: a schematic cross-sectional view a-a of the structure shown in fig. 8;
FIG. 10: a front view of a gasket in an embodiment of the present application;
FIG. 11: a rear view of the gasket in one embodiment of the present application;
FIG. 12: a side view of a gasket in one embodiment of the present application;
in the figure: the optical filter comprises a shell 1, a shell body 101, a clamping part 102, a bracket 103, an inner frame 104, an accommodating cavity 105, an outer frame 106, an assembling space 107, a protruding structure 108, a clamping space 109, a groove 110, an optical filter 2, a sealing gasket 3, a sealing block 300, an end cover 4, an outer connecting end 400, a wire guide groove 401, a sealing strip 5, a clamping part 501, a sealing strip body 502, an elastic arm 503, a connecting part 504, a free part 505, a margin space 506, a slope structure 507, a screw 6 and a screw hole 7.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
As shown in fig. 1 to 3, in one embodiment of the present application, a sealing structure of a safety light curtain at least includes: the optical filter comprises a shell 1, an optical filter 2, two sealing gaskets 3, two end covers 4 and two sealing strips 5; the optical filter 2 for transmitting an optical path is arranged on one side of the shell 1; the two sealing gaskets 3 are arranged at two ends of the shell 1; the two end covers 4 are arranged on the outer sides of the corresponding sealing gaskets 3; the two sealing strips 5 are oppositely arranged between the shell 1 and the optical filter 2.
In this embodiment, the optical filter 2 for transmitting light path is disposed at one side of the housing 1, the two gaskets 3 are disposed at two ends of the housing 1 and perpendicular to the optical filter 2, the two end caps 4 are disposed at outer sides of the corresponding gaskets 3, and the two sealing strips 5 are disposed between the housing 1 and the optical filter 2. Through the arrangement, the sealing gaskets 3 realize the sealing between the shell 1 and the end cover 4 and between the optical filter 2 and the end cover 4; the sealing strip 5 realizes the sealing between the shell 1 and the optical filter 2; through waterproof test, this embodiment can reach IP67 waterproof standard. Compared with the prior art, the embodiment can be applied to more environments.
The waterproof test specifically includes that the safety light curtain provided with the sealing structure is placed in water with one meter of depth for 30 minutes, and then the sealing structure is detected, and all detection indexes can reach the IP67 waterproof standard.
In the practical application process, the sealing structure of the two safety light curtains is arranged, the safety light curtain equipment body used for completing emission operation is arranged in one sealing structure, the safety light curtain equipment body used for completing receiving operation is arranged in the other sealing structure, and the optical filters 2 of the two sealing structures are arranged oppositely, so that the safety light curtain is formed.
Optionally, the end cap 4 is detachably connected to the housing 1.
In this embodiment, each end cap 4 is connected to the housing 1 by four screws 6. Of course, those skilled in the art will appreciate other detachable connections such as snap connections.
Specifically, as shown in fig. 4 and 5, the housing 1 includes: a housing body 101, a holding portion 102, an inner mount 104, and a bracket 103 for attaching the filter 2; the clamping part 102, the bracket 103 and the inner rack 104 are respectively connected with the shell body 101 from outside to inside; an accommodating cavity 105 is formed between the internal frame 104 and the housing body 101.
In this embodiment, the housing body 101 is provided with a clamping portion 102 for mounting the weatherstrip 5, a bracket 103 for mounting the optical filter 2, and an internal frame 104 for mounting the safety light curtain in sequence from outside to inside, and the clamping portion 102, the bracket 103, and the internal frame 104 are arranged in parallel; an accommodating cavity 105 for installing a safety light curtain device body which completes the transmitting operation or the receiving operation is formed between the internal frame 104 and the shell body 101.
Specifically, the housing 1 further includes: an exterior shelf 106; the external frame 106 is disposed outside the housing body 101 and opposite to the optical filter 2.
In this embodiment, an outer frame 106 is further disposed on the outer side of the housing body 101, the outer frame 106 is disposed opposite to the filter 2, and an assembly space 107 is formed between the outer frame 106 and the housing body 101, so as to facilitate installation of the whole safety light curtain, such as hanging on a sliding rail. The fitting space 107 is provided in communication with the screw hole 7 for fitting the screw 6.
Optionally, the clamping portion 102 comprises: a pair of oppositely disposed raised structures 108, the raised structures 108 defining a clamping space 109.
In this embodiment, the clamping space 109 is disposed in communication with the screw hole 7 left in the housing 1.
Optionally, a connecting member is provided on the bracket 103.
In this embodiment, the bracket 103 is provided with a connecting member for connecting the filter 2, so as to enhance the reliability of the connection between the filter 2 and the housing 1.
Optionally, the connecting member includes, but is not limited to, a connecting member made of an adhesive material and connecting the filter 2 and the bracket 103 by using an adhesive bonding method, or a connecting member made of a silicone material and connecting the filter 2 and the bracket 103 by using a clamping method.
Specifically, the connector includes: the waterproof layer structure comprises an adhesive layer structure and a waterproof layer structure, wherein the adhesive layer structure is arranged on the outer side of the waterproof layer structure. Through the arrangement, the adhesive layer structure is used for enhancing the bonding stability between the optical filter 2 and the bracket 103, and the waterproof layer structure is used for avoiding water from flowing into the accommodating cavity 105 through the optical filter 2 and ensuring the sealing effect of the sealing structure.
Optionally, the adhesive layer structure is made of double-sided adhesive tape.
Optionally, the waterproof layer structure is made of acrylic foam, and the optical filter 2 and the bracket 103 can be tightly attached to each other by using the characteristic of the acrylic foam so as to achieve a good waterproof effect.
Specifically, the bracket 103 is provided with a glue storage space, so that the connecting piece is tightly connected with the bracket 103 and the optical filter 2.
In this embodiment, the bracket 103 is provided with a glue storage space, the glue storage space is two grooves 110 continuously arranged, the curvature radius of the two grooves 110 is different, and the curvature radius of the groove 110 close to the housing body 101 is larger than the curvature radius of the groove 110 far from the housing body 101. Through the setting of two different curvature radius's recess 110, on the one hand can ensure with the sealed effect of sealing strip complex, on the other hand can make the installation of light filter 2 level and smooth, does not receive sealed effect of influence such as foreign matter.
Specifically, as shown in fig. 6 and 7, the sealing tape 5 includes: a clamping portion 501 and a sealing strip body 502 which are connected with each other; the clamping portion 501 is connected with the clamping portion 102; a sealing area of the filter 2 is formed between the sealing strip body 502 and the bracket 103.
In the present embodiment, the weather strip 5 includes: a clamping portion 501 and a sealing strip body 502 which are connected with each other; the clamping portion 501 is connected with the clamping portion 102 and is disposed in the clamping space 109; a sealing area of the filter 2 is formed between the sealing strip body 502 and the bracket 103. Through the setting, utilize joint portion 501 to make sealing strip 5 be connected with casing 1, utilize sealing strip body 502 to exert pressure for light filter 2, make light filter 2 and bracket 103 zonulae occludens, the sealed effect of guarantee.
Specifically, the clamping portion 501 at least includes: two oppositely disposed resilient arms 503; the connecting portion 504 of the elastic arm 503 is connected to the weather strip body 502, and an allowance space 506 is formed between the free portions 505 of the two elastic arms 503.
In this embodiment, the clamping portion 501 includes two elastic arms 503 disposed opposite to each other, the connecting portion 504 of the elastic arm 503 is connected to the weatherstrip body 502, and a margin space 506 is formed between the free portions 505 of the elastic arms 503 to enhance the reliability of the connection between the weatherstrip 5 and the housing 1, and at the same time, the adaptability of the elastic arms 503 is improved, and the requirement for the precision of the processing of the housing 1 is reduced. The allowance space 506 is a structure with a narrow middle part and large two ends, and the cross section of the allowance space 506 is a horizontal 8-shaped structure, so that the two elastic arms 503 enter the clamping space 109 after being extruded and deformed, and then rebound is performed, thereby enhancing the reliability of the connection between the elastic arms 503 and the clamping part 102. In addition, the margin space 506 also provides a space for avoiding the screws 6.
Specifically, the sealing strip body 502 has a ramp structure 507.
In this embodiment, the sealing strip body 502 has an inclined surface structure 507, and the inclined surface structure 507 and the optical filter 2 form an included angle to avoid interfering with the light path incident or exiting.
Specifically, as shown in fig. 8 to 12, the gasket 3 is provided to match the end cap 4.
Specifically, the sealing pad 3 is further provided with a sealing block 300, and the sealing block 300 is arranged between the end cover 4 and the optical filter 2.
Optionally, screw holes 7 corresponding to the screws 6 are provided at four corners of the end cap 4.
In this embodiment, the sealing pad 3 is provided with a screw hole 7 matching with the screw 6, and a sealing block 300 matching with a wire groove 401 of the end cap 4, wherein the sealing block 300 is disposed between the end cap 4 and the optical filter 2. By the arrangement of the sealing gaskets 3, the sealing between the shell 1 and the end cover 4 and the sealing between the optical filter 2 and the end cover 4 are realized.
Specifically, one of the two end caps 4 is provided with an external connection end 400 to connect with an external device.
This application is used for light path to see through light filter 2 to set up in one side of casing 1, and two sealed pads 3 set up in the both ends of casing 1, and two end covers 4 set up in the sealed outside of 3 that fill up that correspond, and two sealing strips 5 set up relatively between casing 1 and light filter 2. Through the arrangement, the sealing gaskets 3 realize the sealing between the shell 1 and the end cover 4 and between the optical filter 2 and the end cover 4; the sealing strip 5 realizes the sealing between the shell 1 and the optical filter 2; through waterproof test, this application can reach IP67 waterproof standard. Compared with the prior art, the method and the device can be applied to more environments.
In the description of the present application, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
The above embodiments are merely to illustrate the technical solutions of the present application and are not limitative, and the present application is described in detail with reference to preferred embodiments. It will be understood by those skilled in the art that various modifications and equivalent arrangements may be made in the present invention without departing from the spirit and scope of the present invention and shall be covered by the appended claims.
Claims (10)
1. A sealing structure of a safety light curtain, comprising at least:
the optical filter comprises a shell, an optical filter, two sealing gaskets, two end covers and two sealing strips;
the optical filter used for transmitting the light path is arranged on one side of the shell; the two sealing gaskets are arranged at two ends of the shell; the two end covers are arranged on the outer sides of the corresponding sealing gaskets; the two sealing strips are oppositely arranged between the shell and the optical filter.
2. A sealing arrangement of a safety light curtain as claimed in claim 1, wherein the housing comprises: the optical filter comprises a shell body, a clamping part, an internal frame and a bracket for mounting the optical filter; the clamping part, the bracket and the inner rack are respectively connected with the shell body from outside to inside; an accommodating cavity is formed between the internal frame and the shell body.
3. A sealing arrangement for a safety light curtain as claimed in claim 2, wherein the housing further comprises: an external frame; the outer frame is arranged on the outer side of the shell body and opposite to the optical filter.
4. A sealing arrangement for a safety light curtain as claimed in claim 2, wherein the brackets are provided with connectors.
5. A sealing arrangement of a safety light curtain as claimed in claim 4, wherein the connector comprises: the waterproof layer structure comprises an adhesive layer structure and a waterproof layer structure, wherein the adhesive layer structure is arranged on the outer side of the waterproof layer structure.
6. A sealing arrangement of a safety light curtain as claimed in any of claims 2 to 5, wherein said brackets are provided with glue-retaining spaces.
7. A sealing arrangement of a safety light curtain as claimed in any of claims 1 to 5, wherein the sealing gasket is further provided with a sealing block, the sealing block being arranged between the end cap and the filter.
8. A sealing arrangement of a safety light curtain as claimed in any of claims 2 to 5, wherein the sealing strip comprises: the clamping part and the sealing strip body are connected with each other; the clamping part is connected with the clamping part; and a sealing area of the optical filter is formed between the sealing strip body and the bracket.
9. A sealing structure of a safety light curtain as claimed in claim 8, wherein the clamping portion at least comprises: two oppositely arranged elastic arms; the connecting part of the elastic arm is connected with the sealing strip body, and a margin space is formed between the free parts of the two elastic arms.
10. A sealing arrangement for a safety light curtain as claimed in claim 8, wherein the sealing strip body has a ramp configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210197779.5A CN114585196B (en) | 2022-03-01 | 2022-03-01 | Sealing structure of safety light curtain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210197779.5A CN114585196B (en) | 2022-03-01 | 2022-03-01 | Sealing structure of safety light curtain |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114585196A true CN114585196A (en) | 2022-06-03 |
| CN114585196B CN114585196B (en) | 2023-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210197779.5A Active CN114585196B (en) | 2022-03-01 | 2022-03-01 | Sealing structure of safety light curtain |
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