CN110438919B - Prevent floodgate machine that presss from both sides and hinder - Google Patents
Prevent floodgate machine that presss from both sides and hinder Download PDFInfo
- Publication number
- CN110438919B CN110438919B CN201910795961.9A CN201910795961A CN110438919B CN 110438919 B CN110438919 B CN 110438919B CN 201910795961 A CN201910795961 A CN 201910795961A CN 110438919 B CN110438919 B CN 110438919B
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- fixedly connected
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F13/00—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
- E01F13/04—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F13/00—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
- E01F13/04—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage
- E01F13/06—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage by swinging into open position about a vertical or horizontal axis parallel to the road direction, i.e. swinging gates
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- Power-Operated Mechanisms For Wings (AREA)
Abstract
The invention relates to the field of automatic gate equipment, in particular to an anti-pinch gate, which comprises a body, wherein the left side and the right side of the body are respectively provided with a left cavity and a right cavity, the middle part of the body is provided with a channel, a lower groove is arranged below the channel, a left sliding groove is arranged above the left cavity, a right sliding groove is arranged above the right cavity, a left sliding door extending into the channel is connected in the left sliding groove in a sliding manner, and a right sliding door extending into the channel is connected in the right sliding groove in a sliding manner. Further protecting the human body.
Description
Technical Field
The invention relates to the field of automatic gate equipment, in particular to a gate capable of preventing clamping injury.
Background
The automatic gate is arranged at the subway entrance, the subway entrance can be achieved by swiping a card, so that the automatic gate is convenient, a lot of manual ticket checking operations can be saved, the existing gate is single in structure, strong protection measures are not provided, accidents such as clamping injury and the like are easily caused to human bodies, the existing gate is also extremely dangerous for old people and people with inconvenient actions, the clamping injury accident is easily caused once the existing gate breaks down, the automatic gate is easy to operate, the clamping injury accident is prevented, and therefore the problem is improved by intentionally designing the anti-clamping gate.
Disclosure of Invention
The invention aims to provide a pinch-proof gate which can overcome the defects in the prior art, so that the practicability of equipment is improved.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a pinch-proof gate machine, which comprises a body, wherein the left side and the right side of the body are respectively provided with a left cavity and a right cavity, the middle part of the body is provided with a channel, the lower part of the channel is provided with a lower groove, the upper part of the left cavity is provided with a left sliding groove, the upper part of the right cavity is provided with a right sliding groove, the left sliding groove is connected with a left sliding door extending into the channel in a sliding way, the right sliding groove is connected with a right sliding door extending into the channel in a sliding way, the middle parts of the left side and the right side of the channel are respectively provided with a left rotating groove and a right rotating groove, a left guard bar for preventing passage is arranged in the left rotating groove in a rotating way, the right rotating groove is provided with a right guard bar for preventing rotation passage, the lower part of the channel is connected with a sliding plate in a sliding way, the motor can control the left sliding door and the right sliding door to move left, the left guard bar and the right guard bar can be rotated, and when a human body stands on the sliding plate, the motor loses control over the left sliding door and the right sliding door.
Further, the motor is in power connection with a shaft sleeve, the shaft sleeve is in splined connection with an output shaft in rotary connection with the lower end of the sliding plate, the output shaft is fixedly connected with a middle bevel gear, and the lower end of the sliding plate is fixedly connected with a left spring and a right spring.
Furthermore, when no human body is arranged on the sliding plate, the middle bevel gear is meshed with a left bevel gear and a right bevel gear, the left bevel gear is fixedly connected with a left cross shaft which is rotatably connected with the left wall of the lower groove, the left cross shaft extends into the left cavity and is fixedly connected with a left lower chain wheel, the left lower chain wheel is in transmission connection with a left chain, the left chain is in transmission connection with a left upper chain wheel, and the left upper chain wheel is fixedly connected with a left threaded rod which is rotatably connected with the inner wall of the left cavity.
Further, the right bevel gear fixedly connected with the right cross axle that lower groove right wall rotated and is connected, the right cross axle extends to the right intracavity and fixedly connected with right lower sprocket, right lower sprocket transmission is connected with the right chain, right chain transmission is connected with the upper right sprocket, upper right sprocket fixedly connected with the right threaded rod that right intracavity wall rotated and is connected.
Furthermore, a left moving block extending into the left cavity is fixedly connected to the left end of the left sliding door, a left threaded hole meshed with the left threaded rod for transmission is formed in the left moving block, a right moving block extending into the right cavity is fixedly connected to the right end of the right sliding door, and a right threaded hole meshed with the right threaded rod for transmission is formed in the right moving block.
Further, left side chamber rear is equipped with left hole, the left spring in the left side downthehole fixedly connected with of left side, spring fixedly connected with in a left side with left hole sliding connection's left slide bar, left side slide bar extends to in the left side intracavity, left side slide bar rear end fixedly connected with extends to the left horizontal pole in the left turn inslot, right side chamber rear is equipped with right sliding hole, the spring in the right sliding hole fixedly connected with right side, spring fixedly connected with in the right side with right sliding hole sliding connection's right slide bar, right side slide bar extends to in the right side intracavity, right side slide bar rear end fixedly connected with extends to right side rotates the right horizontal pole in the inslot.
Further, a left rear hole is formed in the rear portion of the left rotating groove, a left inner spring is fixedly connected in the left rear hole, a left inner spring is fixedly connected with a left rear sliding rod in sliding connection with the left rear hole, the left rear sliding rod is fixedly connected with a left rack in sliding connection with the left rotating groove, a left inner groove is formed in the left rack, the left cross rod is inserted into the left inner groove, a left sector gear is meshed with the left rack, a left vertical shaft is fixedly connected with the left sector gear and rotatably connected with the inner wall of the left rotating groove, and the left vertical shaft is fixedly connected with the left guard bar.
Further, a right rear hole is formed in the rear portion of the right rotating groove, a right inner spring is fixedly connected to the right rear hole, a right rear sliding rod is fixedly connected to the right inner spring and slidably connected to the right rear hole, a right rack is fixedly connected to the right rear sliding rod and slidably connected to the right rotating groove, a right inner groove is formed in the right rack, the right cross rod is inserted into the right inner groove, a right sector gear is meshed with the right rack, a right vertical shaft is fixedly connected to the right sector gear and rotatably connected to the inner wall of the right rotating groove, and the right vertical shaft is fixedly connected with the right guard bar.
Further, the right end of the left sliding door is provided with an upper left hole and a lower left hole, the left end of the right sliding door is provided with a lower right hole and an upper right hole, the lower left hole is fixedly connected with a lower spring, the lower spring is fixedly connected with the lower left hole in a sliding manner and extends to the lower short rod in the lower right hole, the upper right hole is fixedly connected with an upper spring, and the upper spring is fixedly connected with the upper right hole in a sliding manner and extends to the upper short rod in the upper left hole.
The invention has the beneficial effects that: according to the anti-pinch gate, the protective rod is additionally arranged, a human body cannot open the protective rod to enter before the gate is not completely opened, so that the human body is prevented from colliding with the gate, and the human body is prevented from being tripped.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of an overall structure of the anti-pinch gate of the present invention.
Fig. 2 is a schematic structural view of a section a-a in fig. 1.
Fig. 3 is an enlarged schematic view of B in fig. 1.
Fig. 4 is an enlarged schematic view of C in fig. 2.
Fig. 5 is an enlarged schematic view of D in fig. 2.
Detailed Description
The invention will now be described in detail with reference to fig. 1-5, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
Combine 1-5 the floodgate machine of preventing pressing from both sides hinder of attached drawing, including fuselage 10, the fuselage 10 left and right sides is equipped with left chamber 13 and right chamber 14 respectively, the fuselage 10 middle part is equipped with passageway 15, passageway 15 below is equipped with down groove 43, left chamber 13 top is equipped with left spout 11, right chamber 14 top is equipped with right spout 12, sliding connection has a left sliding door 16 that extends to in the passageway 15 in the left spout 11, sliding connection has a right sliding door 17 that extends to in the passageway 15 in the right spout 12, passageway 15 left and right sides middle part is equipped with respectively and rotates groove 68 and right rotation groove 69, the rotation of the left side pole 29, the rotation of the right side pole 69 is equipped with and prevents current right side pole 30, sliding connection has slide plate 40 below the passageway 15, fixedly connected with motor 48 in the, the motor 48 can control the left sliding door 16 and the right sliding door 17 to move left and right, when the left sliding door 16 moves left to a certain position and the right sliding door 17 moves right to a certain position, the left guard bar 29 and the right guard bar 30 can be rotated, when a human body stands on the sliding plate 40, the motor 48 loses control on the left sliding door 16 and the right sliding door 17.
Advantageously, the motor 48 is in power connection with a shaft sleeve 47, the shaft sleeve 47 is in splined connection with an output shaft 49 which is in rotary connection with the lower end of the sliding plate 40, the output shaft 49 is fixedly connected with a middle bevel gear 45, and the lower end of the sliding plate 40 is fixedly connected with a left spring 42 and a right spring 41.
Advantageously, when no human body is present on the skateboard 40, the middle bevel gear 45 is engaged with a left bevel gear 46 and a right bevel gear 44, the left bevel gear 46 is fixedly connected with a left transverse shaft 28 rotatably connected with the left wall of the lower groove 43, the left transverse shaft 28 extends into the left cavity 13 and is fixedly connected with a left lower chain wheel 22, the left lower chain wheel 22 is in driving connection with a left chain 21, the left chain 21 is in driving connection with a left upper chain wheel 20, and the left upper chain wheel 20 is fixedly connected with a left threaded rod 27 rotatably connected with the inner wall of the left cavity 13.
Advantageously, the right bevel gear 44 is fixedly connected with a right transverse shaft 39 rotatably connected with the right wall of the lower groove 43, the right transverse shaft 39 extends into the right cavity 14 and is fixedly connected with a right lower chain wheel 38, the right lower chain wheel 38 is in driving connection with a right chain 37, the right chain 37 is in driving connection with a right upper chain wheel 33, and the right upper chain wheel 33 is fixedly connected with a right threaded rod 32 rotatably connected with the inner wall of the right cavity 14.
Beneficially, a left moving block 18 extending into the left cavity 13 is fixedly connected to the left end of the left sliding door 16, a left threaded hole 26 meshed with the left threaded rod 27 for transmission is formed in the left moving block 18, a right moving block 19 extending into the right cavity 14 is fixedly connected to the right end of the right sliding door 17, and a right threaded hole 31 meshed with the right threaded rod 32 for transmission is formed in the right moving block 19.
Advantageously, a left hole 23 is provided behind the left cavity 13, a left middle spring 58 is fixedly connected in the left hole 23, a left sliding rod 24 slidably connected with the left hole 23 is fixedly connected with the left middle spring 58, the left sliding rod 24 extends into the left cavity 13, a left cross bar 56 extending into the left rotating groove 68 is fixedly connected at the rear end of the left sliding rod 24, a right sliding hole 36 is provided behind the right cavity 14, a right middle spring 59 is fixedly connected in the right sliding hole 36, a right sliding rod 35 slidably connected with the right sliding hole 36 is fixedly connected with the right middle spring 59, the right sliding rod 35 extends into the right cavity 14, and a right cross bar 57 extending into the right rotating groove 69 is fixedly connected at the rear end of the right sliding rod 35.
Beneficially, a left rear hole 50 is formed behind the left rotating groove 68, a left inner spring 51 is fixedly connected in the left rear hole 50, a left rear sliding rod 52 is fixedly connected with the left inner spring 51 and is slidably connected with the left rear hole 50, a left rack 25 is fixedly connected with the left rotating groove 68 and is provided with a left inner groove 72, the left cross rod 56 is inserted into the left inner groove 72, the left rack 25 is engaged with a left sector gear 71, the left sector gear 71 is fixedly connected with a left vertical shaft 70 rotatably connected with the inner wall of the left rotating groove 68, and the left vertical shaft 70 is fixedly connected with the left guard bar 29.
Advantageously, a right rear hole 54 is formed behind the right rotary groove 69, a right inner spring 53 is fixedly connected in the right rear hole 54, a right rear slide rod 55 is fixedly connected with the right inner spring 53 and slidably connected with the right rear hole 54, a right rack 34 is fixedly connected with the right rear slide rod 55 and slidably connected with the right rotary groove 69, a right inner groove 73 is formed in the right rack 34, the right cross rod 57 is inserted into the right inner groove 73, a right sector gear 75 is engaged with the right rack 34, a right vertical shaft 74 is fixedly connected with the inner wall of the right rotary groove 69, and the right vertical shaft 74 is fixedly connected with the right guard bar 30.
Advantageously, the right end of the left sliding door 16 is provided with an upper left hole 60 and a lower left hole 67, the left end of the right sliding door 17 is provided with a lower right hole 64 and an upper right hole 63, a lower spring 66 is fixedly connected in the lower left hole 67, the lower spring 66 is fixedly connected with a lower short rod 65 which is slidably connected with the lower left hole 67 and extends into the lower right hole 64, an upper spring 62 is fixedly connected in the upper right hole 63, and the upper spring 62 is fixedly connected with an upper short rod 61 which is slidably connected with the upper right hole 63 and extends into the upper left hole 60.
The fixing and connecting method in this embodiment includes, but is not limited to, bolting, welding, and the like.
Sequence of mechanical actions of the whole device:
1. in operation, the motor 48 is activated to rotate the shaft sleeve 47, so as to rotate the middle bevel gear 45, so as to rotate the left bevel gear 46 and the right bevel gear 44, so as to rotate the left cross shaft 28, so as to rotate the left lower sprocket 22, so as to rotate the left upper sprocket 20, so as to rotate the left threaded rod 27, at which point the left threaded rod 27 meshes with the left threaded hole 26 for transmission, so that the left moving block 18 moves to the left, so as to move the left sliding door 16 to the left, and the right cross shaft 39 is driven, so as to rotate the right lower sprocket 38, so as to rotate the right upper sprocket 33, so as to rotate the right threaded rod 32, so as to drive the right threaded rod 32 to mesh with the right threaded hole 31 for transmission, so as to move the right moving block 19 to the right, thereby moving the right sliding door 17 to the right.
2. When left moveable mass 18 contacts left slide 24, pushing left slide 24 to move to the left, while right moveable mass 19 contacts right slide 35 pushing right slide 35 to move to the right, thereby moving left crossbar 56 to the left away from left inner slot 72, thereby moving right crossbar 57 to the right away from right inner slot 73, and then stopping motor 48.
3. At this time, the human body pushes the left guard bar 29 and the right guard bar 30 to walk onto the scout sliding plate 40 from the back of the passage 15, at this time, the sliding plate 40 moves downwards under the action of gravity, so that the middle bevel gear 45 is pushed to move downwards, the middle bevel gear 45 is not meshed with the left bevel gear 46 and the right bevel gear 44 any more, so that clamping injury caused by machine abnormality is prevented, and after the human body leaves, the middle bevel gear 45 is meshed with the left bevel gear 46 and the right bevel gear 44 again.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (1)
1. The utility model provides a prevent floodgate machine of pressing from both sides hindering, includes the fuselage, its characterized in that:
the left side and the right side of the machine body are respectively provided with a left cavity and a right cavity, the middle part of the machine body is provided with a channel, a lower groove is arranged below the channel, a left sliding groove is arranged above the left cavity, a right sliding groove is arranged above the right cavity, a left sliding door extending into the channel is connected in the left sliding groove in a sliding mode, a right sliding door extending into the channel is connected in the right sliding groove in a sliding mode, a left rotating groove and a right rotating groove are respectively arranged in the middle part of the left side and the right side of the channel, a left guard bar used for preventing passing is arranged in the left rotating groove in a rotating mode, and a right guard bar used for preventing passing;
a sliding plate is connected below the channel in a sliding manner, a motor is fixedly connected in the lower groove, the motor can control the left sliding door and the right sliding door to move left and right, when the left sliding door moves to a certain position leftwards and the right sliding door moves to a certain position rightwards, the left guard bar and the right guard bar can only be rotated, and when a human body stands on the sliding plate, the motor loses control over the left sliding door and the right sliding door;
the motor is in power connection with a shaft sleeve, the shaft sleeve is in splined connection with an output shaft which is in rotary connection with the lower end of the sliding plate, the output shaft is fixedly connected with a middle bevel gear, and the lower end of the sliding plate is fixedly connected with a left spring and a right spring;
when no human body is on the sliding plate, the middle bevel gear is meshed with a left bevel gear and a right bevel gear, the left bevel gear is fixedly connected with a left cross shaft which is rotatably connected with the left wall of the lower groove, the left cross shaft extends into the left cavity and is fixedly connected with a left lower chain wheel, the left lower chain wheel is in transmission connection with a left chain, the left chain is in transmission connection with a left upper chain wheel, and the left upper chain wheel is fixedly connected with a left threaded rod which is rotatably connected with the inner wall of the left cavity;
the right bevel gear is fixedly connected with a right transverse shaft which is rotationally connected with the right wall of the lower groove, the right transverse shaft extends into the right cavity and is fixedly connected with a right lower chain wheel, the right lower chain wheel is in transmission connection with a right chain, the right chain is in transmission connection with a right upper chain wheel, and the right upper chain wheel is fixedly connected with a right threaded rod which is rotationally connected with the inner wall of the right cavity;
the left end of the left sliding door is fixedly connected with a left moving block extending into the left cavity, a left threaded hole which is in meshing transmission with the left threaded rod is formed in the left moving block, the right end of the right sliding door is fixedly connected with a right moving block extending into the right cavity, and a right threaded hole which is in meshing transmission with the right threaded rod is formed in the right moving block;
a left hole is formed in the rear of the left cavity, a left middle spring is fixedly connected in the left hole, a left sliding rod which is connected with the left hole in a sliding mode is fixedly connected with the left middle spring, the left sliding rod extends into the left cavity, a left cross rod which extends into the left rotating groove is fixedly connected with the rear end of the left sliding rod, a right sliding hole is formed in the rear of the right cavity, a right middle spring is fixedly connected in the right sliding hole, a right sliding rod which is connected with the right sliding hole in a sliding mode is fixedly connected with the right middle spring, the right sliding rod extends into the right cavity, and a right cross rod which extends into the right rotating groove is fixedly connected with the rear end of the right sliding rod;
a left rear hole is formed in the rear of the left rotating groove, a left inner spring is fixedly connected in the left rear hole, a left rear sliding rod which is in sliding connection with the left rear hole is fixedly connected, the left rear sliding rod is fixedly connected with a left rack which is in sliding connection with the left rotating groove, a left inner groove is formed in the left rack, the left cross rod is inserted into the left inner groove, a left sector gear is meshed with the left rack, a left vertical shaft which is in rotating connection with the inner wall of the left rotating groove is fixedly connected with the left sector gear, and the left vertical shaft is fixedly connected with the left guard bar;
a right rear hole is formed in the rear of the right rotating groove, a right inner spring is fixedly connected in the right rear hole, a right rear sliding rod in sliding connection with the right rear hole is fixedly connected with the right inner spring, a right rack in sliding connection with the right rotating groove is fixedly connected with the right rear sliding rod, a right inner groove is formed in the right rack, the right cross rod is inserted into the right inner groove, a right sector gear is meshed with the right rack, a right vertical shaft in rotating connection with the inner wall of the right rotating groove is fixedly connected with the right sector gear, and the right vertical shaft is fixedly connected with the right guard bar;
the left sliding door right-hand member is equipped with upper left hole and lower left hole, the right sliding door left end is equipped with lower right hole and upper right hole, the downthehole fixedly connected with down spring in a left side, down spring fixedly connected with down hole sliding connection and extend to down the downthehole short bar in the right side, the downthehole fixedly connected with of upper right spring, upper spring fixedly connected with upper right hole sliding connection and extend to the downthehole last short bar in the left side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910795961.9A CN110438919B (en) | 2019-08-27 | 2019-08-27 | Prevent floodgate machine that presss from both sides and hinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910795961.9A CN110438919B (en) | 2019-08-27 | 2019-08-27 | Prevent floodgate machine that presss from both sides and hinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110438919A CN110438919A (en) | 2019-11-12 |
| CN110438919B true CN110438919B (en) | 2021-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910795961.9A Active CN110438919B (en) | 2019-08-27 | 2019-08-27 | Prevent floodgate machine that presss from both sides and hinder |
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| Country | Link |
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| CN (1) | CN110438919B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110904886B (en) * | 2019-12-10 | 2020-09-15 | 安徽鸿杰威尔停车设备有限公司 | Movable gate for public places |
| CN113389157B (en) * | 2021-07-14 | 2022-08-09 | 约课教育科技(深圳)有限公司 | Intelligent recognition prevents pressing wounded floodgate machine |
| CN114775483A (en) * | 2022-05-25 | 2022-07-22 | 福建神威***集成有限责任公司 | Intelligent E-code communication equipment for rail transit |
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| CN206956597U (en) * | 2017-06-13 | 2018-02-02 | 黄新 | A kind of gate based on pressure sensor |
| CN108979511A (en) * | 2018-07-27 | 2018-12-11 | 毛岳生 | A kind of reliable automatic shutter door gear |
| CN109629486A (en) * | 2019-01-19 | 2019-04-16 | 深圳市旭美通科技有限公司 | A kind of safety-type flutter valve machine device |
| KR20190048322A (en) * | 2017-10-31 | 2019-05-09 | 신영래 | Apparatus for preventing entrance of car |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204279411U (en) * | 2014-11-27 | 2015-04-22 | 常州峰成科技有限公司 | A kind of device preventing insert between underground automobile door and shielded gate |
| CN204590921U (en) * | 2015-02-10 | 2015-08-26 | 广东申菱空调设备有限公司 | The clamp-proof safety device of subway station air-conditioning |
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2019
- 2019-08-27 CN CN201910795961.9A patent/CN110438919B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206956597U (en) * | 2017-06-13 | 2018-02-02 | 黄新 | A kind of gate based on pressure sensor |
| KR20190048322A (en) * | 2017-10-31 | 2019-05-09 | 신영래 | Apparatus for preventing entrance of car |
| CN108979511A (en) * | 2018-07-27 | 2018-12-11 | 毛岳生 | A kind of reliable automatic shutter door gear |
| CN109629486A (en) * | 2019-01-19 | 2019-04-16 | 深圳市旭美通科技有限公司 | A kind of safety-type flutter valve machine device |
Also Published As
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| CN110438919A (en) | 2019-11-12 |
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