CN109372325B - High risk point isolation closing device - Google Patents
High risk point isolation closing device Download PDFInfo
- Publication number
- CN109372325B CN109372325B CN201811465216.XA CN201811465216A CN109372325B CN 109372325 B CN109372325 B CN 109372325B CN 201811465216 A CN201811465216 A CN 201811465216A CN 109372325 B CN109372325 B CN 109372325B
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- Prior art keywords
- racks
- gear
- high risk
- isolation
- rack
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000002955 isolation Methods 0.000 title claims abstract description 53
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 230000009471 action Effects 0.000 claims abstract description 8
- 230000003578 releasing effect Effects 0.000 claims abstract description 6
- 230000001154 acute effect Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 6
- 239000000470 constituent Substances 0.000 description 7
- 238000003825 pressing Methods 0.000 description 7
- 241000054879 Pteris denticulata Species 0.000 description 4
- 230000014509 gene expression Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 208000012260 Accidental injury Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H17/00—Fencing, e.g. fences, enclosures, corrals
- E04H17/14—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H17/00—Fencing, e.g. fences, enclosures, corrals
- E04H17/14—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
- E04H17/1413—Post-and-rail fences, e.g. without vertical cross-members
- E04H17/1447—Details of connections between rails and posts
- E04H17/1465—Details of connections between rails and posts the rails being supported within blind or through holes of the posts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
- F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
- F16H19/04—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising a rack
Abstract
The invention discloses a high risk point isolation sealing device which comprises four racks, wherein the four racks are enclosed into a 'well' -shape, gears are arranged in a middle hole formed by intersecting and enclosing the four racks, the gears are meshed with teeth of the four racks, any one of the racks is pushed and pulled, and the gears rotate and drive the other three racks to respectively move in different directions to finish isolation or isolation releasing actions. When the locking isolation is required to be contracted, any one rack is pushed in the direction of the gear, and the other three racks can be driven to be contracted in the direction of the gear, so that the aim of locking isolation is fulfilled; when the locking isolation is required to be released, only one rack is required to be pulled outwards, and the other three racks are outwards unfolded due to the action of the gears, so that the locking isolation releasing function is achieved; therefore, the high risk point isolation sealing device is convenient to unlock and lock, and has simple and efficient operation process and high safety.
Description
Technical Field
The invention relates to the technical field of safe production, in particular to a high risk point isolation sealing device.
Background
Industrial production facilities such as petrochemical facilities, metallurgical facilities, electric power facilities, and the like, exist in a large number of equipment facilities such as towers, kettles, boilers, inspection wells, valves, pipelines, and the like; in the construction process, high risk points such as elevator ports, stair ports, high-position holes, edges and the like exist, and particularly in the inspection and maintenance construction, a large number of high risk points such as limited space exist. If the management of the access opening which can be accessed by personnel such as a manhole, a flange opening and the like is out of control, the personnel can enter the limited space, and the accidental injury such as poisoning choking and the like can be caused; the management of the adjacent side holes is out of control, which can cause the damage of falling at high positions and the like; and if the control valve and the flange of the process pipeline such as material medium are in artificial misoperation, the material can leak or enter limited spaces such as equipment and facilities, and accidents such as personnel injury, fire explosion and the like are caused.
In the prior art, for the high risk points, rigid materials such as scaffold rods, scaffold plates, steel plates, wood plates and the like are adopted for enclosing so as to prevent personnel from entering by mistake. These temporary protective facilities are easily altered or removed by man-made personnel at will, which is detrimental to the protection of high risk points.
Disclosure of Invention
In view of this, the present invention provides a high risk point isolation sealing device, which aims to improve the convenience and safety when isolating high risk points.
Specifically, the present invention proposes the following specific embodiments:
the high risk point isolation sealing device comprises four racks, wherein the four racks enclose a 'well' -shaped structure, gears are arranged in middle holes formed by intersecting and enclosing the racks, the gears are meshed with teeth of the four racks, any one of the racks is pushed and pulled, and the gears rotate to drive the other three racks to respectively move in different directions so as to finish isolation or isolation releasing actions.
Further, in the invention, the rack is an internal tooth flat bar.
Further, in the present invention, two of the racks are parallel to each other and vertically staggered with respect to the other two racks.
Further, in the present invention, the end of the rack is provided with a grip portion provided at an end of the rack that is close to the gear when the rack is contracted.
Further, in the present invention, the grip portion is an acute angle hook.
Further, in the present invention, the high risk point isolation closing device further includes a gear box in which the gears are installed, each of the racks passing through the sides of the two symmetrical gear boxes and intersecting inside the gear boxes, respectively.
Further, in the present invention, the high risk point isolation closing device further includes a braking device for braking the gear, the braking device being mounted to the gear box.
Further, in the present invention, the gear box is provided with a bearing housing for mounting the gear.
Further, in the present invention, the high risk point isolation closing device further includes a smart lock device for controlling the brake device to perform locking or unlocking actions on the gear.
Further, in the invention, the gear box further comprises an upper cover plate, a lower cover plate and a falcon groove assembly for installing the lower cover plate on the installed body.
The high risk point isolation sealing device comprises four racks, wherein the four racks are enclosed into a 'well' -shape, gears are arranged in a middle hole formed by intersecting and enclosing the four racks, the gears are meshed with teeth of the four racks, any one of the racks is pushed and pulled, and the gears rotate and drive the other three racks to respectively move in different directions to finish isolation or isolation releasing actions. When the locking isolation is required to be contracted, any one rack is pushed in the direction of the gear, and the other three racks can be driven to be contracted in the direction of the gear, so that the aim of locking isolation is fulfilled; when the locking isolation is required to be released, only one rack is required to be pulled outwards, and the other three racks are outwards unfolded due to the action of the gears, so that the locking isolation releasing function is achieved; therefore, the high risk point isolation sealing device is convenient to unlock and lock, and has simple and efficient operation process and high safety.
In summary, the structure of the high risk point isolation sealing device provided by the invention has the advantages and values, and similar methods are not disclosed or used in similar products, thus the structure is innovative, has good and practical effects, has a plurality of functions improved compared with the prior art, is suitable for practical use, and has wide industrial value.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate certain embodiments or examples of the present invention and therefore should not be considered as limiting the scope, and that other related drawings may be obtained from these drawings without inventive effort to a person of ordinary skill in the art.
FIG. 1 is a schematic perspective view of a high risk point isolation closure device according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of a high risk point isolation closing device according to another embodiment of the present invention.
Reference numerals:
100-high risk point isolation closure;
10-racks; 11-grip portions; 12-tooth; 13-a limiting part;
20-gear;
31-bearing seats; 32-an upper cover plate; 33-a lower cover plate; 34-side; 35-through holes;
41-parallel guide rods; 42-pressing type springs; 43-toothed brake pad; 44-handle; 45-handle through holes; 46-pin holes.
Detailed Description
Hereinafter, various embodiments of the present disclosure will be described more fully with reference to the accompanying drawings. The present disclosure is capable of various embodiments and of modifications and variations therein. Accordingly, the present disclosure will be described in more detail with reference to specific embodiments thereof shown in the drawings. However, it should be understood that: there is no intention to limit the various embodiments of the disclosure to the specific embodiments disclosed herein, but rather the disclosure is to be interpreted to cover all modifications, equivalents, and/or alternatives falling within the spirit and scope of the various embodiments of the disclosure. Like reference numerals designate like elements throughout the description in connection with the accompanying drawings.
Hereinafter, the terms "comprises" or "comprising" as may be used in various embodiments of the present disclosure indicate the presence of the disclosed functions, operations or elements, and are not limiting of the addition of one or more functions, operations or elements.
In various embodiments of the present disclosure, the expression "or" at least one of a or/and B "includes any or all combinations of the words listed simultaneously. For example, the expression "a or B" or "at least one of a or/and B" may include a, may include B or may include both a and B.
Expressions (such as "first", "second", etc.) used in the various embodiments of the present disclosure may modify various constituent elements in the various embodiments, but the respective constituent elements may not be limited. For example, the above description does not limit the order and/or importance of the elements. The above description is only intended to distinguish one element from another element. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of various embodiments of the present disclosure.
It should be noted that: if it is described to "connect" one component element to another component element, a first component element may be directly connected to a second component element, and a third component element may be "connected" between the first and second component elements. Conversely, when one constituent element is "directly connected" to another constituent element, it is understood that there is no third constituent element between the first constituent element and the second constituent element.
The terminology used in the various embodiments of the disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the various embodiments of the disclosure. As used herein, the singular is intended to include the plural as well, unless the context clearly indicates otherwise. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which various embodiments of this disclosure belong. The terms (such as those defined in commonly used dictionaries) will be interpreted as having a meaning that is the same as the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein in the various embodiments of the disclosure.
Example 1
Please refer to fig. 1-2.
The high risk point isolation sealing device 100 comprises four racks 10, wherein the four racks 10 are enclosed into a 'well' -shape, gears 20 are arranged in middle holes formed by intersecting and enclosing the racks 10, the gears 20 are meshed with teeth 12 of the four racks 10, any one of the racks 10 is pushed and pulled, and the gears 20 rotate to drive the other three racks 10 to respectively move in different directions so as to finish isolation or release isolation.
The four racks 10 are surrounded in a "well" shape, and a gear 20 engaged with all of the four racks 10 is provided at a central through hole 35 of the "well". It will be appreciated that only one of the racks 10 need to be moved and the other three racks 10 will be moved simultaneously by the action of the gears 20.
It should be further noted that the "movement" means movement with the teeth 12 of the rack 10 engaged with the gear 20, and movement in the axial direction of the rack 10 itself.
Therefore, when the isolation is required to be removed, only one of the racks 10 is required to be moved outwards (i.e. moved along the axial direction of the rack 10 away from the gear 20), and the other three racks 10 are also unfolded along the direction away from the gear 20 (i.e. moved along the axial direction of the rack 20); that is, the isolation may be released to facilitate the passage of people or things.
When the shrink isolation sealing device is required to perform isolation, one rack 10 is moved towards the direction of the gear 20 (i.e. moved towards the direction close to the gear 20 along the axial direction of the rack 10), so that the other three racks 10 can be driven to shrink towards the direction close to the gear 20 (i.e. moved towards the direction close to the gear 20 along the axial direction of the other three racks); that is, the four racks 10 move along the axial direction thereof toward the direction approaching the gear 20 to shrink, thereby achieving the purpose of locking and isolating the outside people or objects from being wrongly jogged.
Therefore, the high risk point isolation sealing device 100 of the present embodiment is convenient to unlock and lock, and the operation process is simple and efficient, and the safety is high.
In this embodiment, the rack 10 is an internally toothed flat bar.
In this embodiment, two racks 10 are parallel to each other and vertically staggered with respect to the other two racks 10.
The racks 10 intersecting four at 90 ° staggered layers are divided into two groups, and the two racks 10 in each group are parallel. It will be appreciated that the two racks 10 parallel to each other are axially opposite when moved.
In this embodiment, the end of the rack 10 is provided with a grip portion 11, and the grip portion 11 is provided near one end of the gear 20 when the rack 10 is contracted.
The grip 11 is used for limiting the movement of the rack 10 when the rack 10 is contracted. Specifically, when the isolation lock is required, the rack 10 moves toward the gear 20, that is, the end of the rack 10 provided with the grip portion 11 moves toward the gear 20 to be contracted and approaches the gear 20. When the separation is required to be released, the rack 10 is unfolded in a direction away from the gear 20, that is, one end of the rack 10 provided with the grip portion 11 is unfolded in a direction away from the gear 20.
In this embodiment, the grip portion 11 is an acute angle hook.
The above means that when the end of the rack 10 provided with the gripping portion 11 moves toward the rack 10, the gripping portion 11 can be clamped on the limiting member to limit the movement of the rack 10. In this embodiment, the gripping portion 11 is an acute angle hook, which hooks the stopper to limit the movement of the end portion to which the stopper belongs in the direction of the gear 20. That is, the acute angle inner hook can position the inner tooth locking strip when hooking an external obstacle, and stop continuous contraction.
In this embodiment, the high risk point isolation seal 100 further includes a gear 20 box, the gear 20 is installed in the gear 20 box, and each rack 10 passes through two symmetrical sides 34 of the gear 20 box and intersects the gear 20 box.
The gear 20 box of the high risk point isolation sealing device 100 is arranged at the intersection of the four racks 10, namely, the middle part of the cross shape. The wheels are mounted in the gear 20 box, it being understood that the gear 20 box is provided with a through hole 35 for each rack 10 to pass through, in particular, each rack 10 has two through holes 35 corresponding thereto on the gear 20 box and for its mounting.
In order to further prevent the rack 10 from falling off the gear 20 and the gear 20 box during the unfolding process, the two ends of the inner tooth 12 of the rack 10 may be provided with a limiting portion 13, and the limiting portion 13 may be a limiting protrusion. In the present embodiment, the shapes and the sizes of the four racks 10 may be the same. The length and the setting position of the internal teeth 12 of the four racks 10 are also the same.
In this embodiment, the high risk point isolation enclosure 100 further includes a braking device for braking the gear 20, the braking device being mounted to the gear 20 box.
The above-mentioned braking means is used to lock the rotation of the gear 20, for example, when the rack 10 is contracted in the isolated state, the braking means locks the gear 20 so that the isolated closing means maintains the isolated state. When the rack 10 is unfolded to be in the unlocked state, the gear 20 is not locked by the brake means, so that the isolation closing means is maintained in the released state.
Specifically, the braking device may include two parallel guide rods 41 mounted on the gear 20 box, the parallel guide rods 41 are mounted with a pressing spring 42 and a toothed braking plate, the toothed braking plate 43 is meshed with the gear 20 and is linked with the pressing spring 42 on the parallel guide rods 41, the middle of the braking plate is provided with a handle 44, the handle 44 is provided with a locking pin hole, and the handle 44 passes through a handle through hole 45 on one side 34 of the gear 20 box. During braking, the handle 44 extending out of the handle through hole 45 is pushed to enable the toothed brake piece 43 to be meshed with the gear 20, and after meshing, an intelligent lock spring pin arranged on the upper cover plate 32 is triggered, and the spring pin penetrates into a lock pin hole of the handle 44 to achieve a braking function; when the toothed brake piece 43 contacts with the gear 20 for braking, the mobile terminal opens the intelligent lock through code scanning, the spring pin of the intelligent lock rebounds to leave the lock pin hole of the handle 44, and under the action of the pressing type spring 42, the toothed brake piece 43 is separated from the gear 20, so that the unlocking function is achieved.
In this embodiment, the gear 20 box is provided with a bearing housing 31 for mounting the gear 20.
As described above, in order to make the rotation of the gear 20 smoother, in the present embodiment, the bearing housing 31 for mounting the gear 20 is provided on the gear 20 box. Bearings (bearings) are an important component in contemporary mechanical devices. Its main function is to support the mechanical rotator, reduce the coefficient of friction (friction coefficient) during its movement and guarantee its precision of revolution (accuracies). The bearing should be a support for its function, i.e. it is intended to be interpreted literally to support the shaft, but this is only a part of its function, supporting it essentially in the sense of being able to carry radial loads. It is also understood that it is intended to fix a shaft.
In this embodiment, the high risk point isolation seal 100 further includes a smart lock device (not shown) for controlling the brake device to perform locking or unlocking actions on the gear 20.
In the present embodiment, two slides (i.e. the through holes 35 for the rack 10 to pass through) are installed on the side 34 of each gear 20 box, and the slides on the two symmetrical sides 34 are matched and symmetrical. A pressing spring 42 is arranged on one slideway, meanwhile, a tooth brake piece meshed with the gear 20 is arranged on the slideway, the tooth brake piece is linked with the pressing spring 42 to perform locking braking, a handle 44 is arranged at one end of the brake piece, the handle 44 is matched with a handle through hole 45 of one side 34, the handle 44 extends out of the handle through hole 45, and the tooth 12 of the tooth brake piece 43 is meshed with the gear 20 to perform braking by pushing the handle 44; the brake handle 44 is provided with a bolt hole 46, the upper cover plate 32 is provided with an intelligent lock device, and a lock pin (not shown in the figure) of the intelligent lock is inserted into the bolt hole 46 to lock the handle 44, so that the brake function is achieved, the lock pin is sprung up after the intelligent lock is opened, and the toothed brake piece 43 is sprung up under the action of the pressing spring 42 to release the brake. In this embodiment, the smart lock device may be wirelessly connected to an external mobile terminal.
Specifically, the intelligent lock device can be connected with the mobile terminal through Bluetooth, the intelligent lock device can also be connected with the remote server through wireless communication signals, the mobile terminal sends a control instruction to the remote server, and the control instruction is sent to the intelligent lock device through the remote server, so that the functions of remote real-time monitoring and remote unlocking/locking are achieved.
In this embodiment, the gear 20 box further includes an upper cover plate 32, a lower cover plate 33, and a tongue-and-groove assembly for mounting the lower cover plate 33 on the body to be mounted.
The arrangement of the upper and lower cover plates 33 can be used for protecting the gear 20 arranged in the gear 20 box, so that the connection between the gear 20 and the rack 10 is more stable. When the gear 20 box is to be mounted on a body (e.g., a wall), the lower cover 33 can be mounted on the body by means of a tongue and groove assembly.
It will be appreciated that the gear 20 box further comprises 4 sides 34, and that the sides 34 of the gear 20 box are symmetrically provided with through holes 35 (i.e. slideway holes) conforming to the geometry of the rack 10, which through holes 35 can be used for fixing the rack 10 and for sliding guiding.
It should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is for clarity only, and that the skilled artisan should recognize that the embodiments may be combined as appropriate to form other embodiments that will be understood by those skilled in the art.
The inventors claim that this invention has been described in its several details with respect to the above-listed embodiments of the invention, and it should be apparent to those skilled in the art that any modifications to the invention, equivalent substitutions for parts of the invention, and choice of specific forms, etc., are within the scope of the invention and the scope of the disclosure.
Claims (7)
1. The high risk point isolation sealing device is characterized by comprising four racks, wherein the four racks enclose a 'well' -shape, gears are arranged in a middle hole formed by intersecting and enclosing the four racks, the gears are meshed with teeth of the four racks, any one of the racks is pushed and pulled, and the gears rotate and drive the other three racks to respectively move in different directions to finish isolation or isolation releasing actions; two racks are parallel to each other and vertically staggered with the other two racks; the end part of the rack is provided with a gripping part, and the gripping part is arranged at one end, close to the gear, of the rack when the rack is contracted; the gear is installed in the gear box, and each rack penetrates through the side faces of the two symmetrical gear boxes and intersects in the gear boxes.
2. The high risk point isolation closure device of claim 1 wherein the rack is an internally toothed flat bar.
3. The high risk point isolation closure device of claim 1 wherein the grip portion is an acute angle hook.
4. The high risk point isolation enclosure of claim 1 further comprising a brake device for braking the gear, the brake device mounted to the gearbox.
5. The high risk point isolation enclosure of claim 1, wherein the gearbox is provided with a bearing housing for mounting the gear.
6. The high risk point isolation enclosure of claim 4 further comprising a smart lock device for controlling said brake device to perform a locking or unlocking action on said gear.
7. The high risk point isolation enclosure of claim 1 wherein said gearbox further comprises an upper cover plate, a lower cover plate and a tongue and groove assembly for mounting said lower cover plate to a body to be mounted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811465216.XA CN109372325B (en) | 2018-12-03 | 2018-12-03 | High risk point isolation closing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811465216.XA CN109372325B (en) | 2018-12-03 | 2018-12-03 | High risk point isolation closing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109372325A CN109372325A (en) | 2019-02-22 |
| CN109372325B true CN109372325B (en) | 2024-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811465216.XA Active CN109372325B (en) | 2018-12-03 | 2018-12-03 | High risk point isolation closing device |
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| Country | Link |
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| CN (1) | CN109372325B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113027099B (en) * | 2021-04-16 | 2022-08-26 | 帝欧家居集团股份有限公司 | Based on bathroom is with anti-skidding preliminary treatment stop gear |
| CN113724432B (en) * | 2021-08-12 | 2023-05-23 | 浙江轩晟科技有限公司 | Face identification access control system based on thing networking |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02125084A (en) * | 1988-11-01 | 1990-05-14 | Shigetoshi Tominaga | Seal frame moving device for moving wall |
| KR20110075149A (en) * | 2009-12-28 | 2011-07-06 | 현대모비스 주식회사 | Gear box for rack bush noise decreasing in power steering device |
| CN102208761A (en) * | 2011-06-01 | 2011-10-05 | 太原惠特科技有限公司 | Double-quick-opening-door multi-isolating switch cabinet locking mechanism |
| CN202102923U (en) * | 2011-06-01 | 2012-01-04 | 太原惠特科技有限公司 | Locking device of double gate multi-isolation flameproof box body |
| CN107667884A (en) * | 2017-11-22 | 2018-02-09 | 姜宗娥 | It is a kind of can Fast Installation cage tool isolating device |
| CN209163617U (en) * | 2018-12-03 | 2019-07-26 | 广州中石科技有限公司 | Locking device is isolated in high risk point |
-
2018
- 2018-12-03 CN CN201811465216.XA patent/CN109372325B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02125084A (en) * | 1988-11-01 | 1990-05-14 | Shigetoshi Tominaga | Seal frame moving device for moving wall |
| KR20110075149A (en) * | 2009-12-28 | 2011-07-06 | 현대모비스 주식회사 | Gear box for rack bush noise decreasing in power steering device |
| CN102208761A (en) * | 2011-06-01 | 2011-10-05 | 太原惠特科技有限公司 | Double-quick-opening-door multi-isolating switch cabinet locking mechanism |
| CN202102923U (en) * | 2011-06-01 | 2012-01-04 | 太原惠特科技有限公司 | Locking device of double gate multi-isolation flameproof box body |
| CN107667884A (en) * | 2017-11-22 | 2018-02-09 | 姜宗娥 | It is a kind of can Fast Installation cage tool isolating device |
| CN209163617U (en) * | 2018-12-03 | 2019-07-26 | 广州中石科技有限公司 | Locking device is isolated in high risk point |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109372325A (en) | 2019-02-22 |
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