CN204827018U - Two doors are with switching device, door starter and two opening door - Google Patents
Two doors are with switching device, door starter and two opening door Download PDFInfo
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- CN204827018U CN204827018U CN201520344303.5U CN201520344303U CN204827018U CN 204827018 U CN204827018 U CN 204827018U CN 201520344303 U CN201520344303 U CN 201520344303U CN 204827018 U CN204827018 U CN 204827018U
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Abstract
The utility model discloses a switching device is used to two doors, including the electronic box with all with first door starter and the second door starter of the switching of two door leafs are connected and are used for respectively controlling to electronic box electricity, this electronic box include be used for according to the control signal's of two door starters of control command output control of user control module and with the transmission is connected and is used for to the control module electricity control signal's signal transmitter, first door starter is equipped with to the battery of its power supply and the signal receiver who is used for receiving control signal. The wire is supplied power to a door starter of keeping away from the electronic box and control signal's transmission owing to not burying through ground, the utility model discloses a switching device has simple to operate, the less characteristics of installation cost. The utility model also discloses a door starter of this switching device and a two opening the door that adopts this switching device.
Description
[technical field]
The utility model relates to electric door technical field, particularly a kind of two-door opening and closing device, this opening and closing device door opener and adopt the double door of this opening and closing device.
[background technology]
Door opener is that the control signal of a kind of user of reception transmission is to automatically perform the device opening or closing action of door.
Existing a kind of opening and closing device be installed on double door comprises two door openers be arranged on respectively on two door leafs, and this double door is opened or closed by described two door openers.Control signal and supply of electric power by one near or the electronic box (containing power supply and control circuit) that is arranged on one of them door leaf transfer to two door openers respectively through wire, the door opener for correspondence performs corresponding opening/closing action.
This opening and closing device can realize automatically opening or closing of two door leafs of double door according to control signal.But, two door leafs open or close owing to can need according to user, therefore the relative position between two door leafs is not fixed, therefore to electronic box and away from electronic box a door opener between wiring (such as control signal wire and power line) produce certain obstacle, for overcoming this obstacle, prior art by mode line being embedded in underground realize electronic box and corresponding control circuit and away from electronic box door opener between connection, to obtain the control signal of corresponding working power and opening and closing door leaf.
Therefore, its relative complex that connects up, sunken cord again original appearance is recovered in installation site because underground line needs first to dig the face of turning up the soil, cost is comparatively large, and easily causes the inharmonious and clumsy problem in the ground of installation site and other positions.In addition, the wire being embedded in underground is easily corroded and affects the normal work of this opening and closing device, even may cause electric leakage and jeopardize the safety of user.
[utility model content]
The purpose of this utility model is to provide a kind of two-door opening and closing device being convenient to install.
For realizing this object, the utility model adopts following technical scheme:
A kind of two-door opening and closing device, comprise electronic box and be all electrically connected with described electronic box and be respectively used to the first door opener and second door opener of the opening and closing of control two door leafs, this electronic box comprises the control module of the control signal exporting control two door openers for the control instruction according to user and is electrically connected with described control module and signal projector for launching described control signal, the battery that described first door opener is provided with the signal receiver for receiving described control signal and powers for this first door opener.
Compared with prior art, the utility model adopts battery to be that the first door opener is powered, adopt the control signal of signal projector emission control door opener action, the first door opener receives described control signal by a signal receiver, and and then works according to this control signal.Owing to not needing the transmission by buried wire to the first door opener Power supply and control signal away from electronic box, decrease installation cost, it also avoid the destruction that ground is caused.
Preferably, described electronic box also comprises power module, and described second door opener is connected with described power module by wire.
Preferably, described battery is rechargeable battery, and described power module is the charging of described rechargeable battery by a switch module.
Further, this switch module comprises and is installed on the first component on a door leaf and is installed on the second component matched on another door leaf and with described first component, described first component is connected with power module, described second component is connected with described rechargeable battery, when two components contact, described power module is the charging of described rechargeable battery.
Preferably, described first component comprises the first metal contact be connected with power module positive pole, the second metal contact be connected with power module negative pole, and be connected and the electromagnetic valve be electrically connected with described control module with two metal contacts, described second component comprises the first Metal Contact sheet be connected with rechargeable battery positive pole, the the second Metal Contact sheet be connected with negative electrode of rechargeable batteries, and described electromagnetic valve can make the first metal contact contact with the first Metal Contact sheet under the control of control module, second metal contact contacts with the second Metal Contact sheet.
Preferably, described first component comprises the first Metal Contact sheet be connected with power module positive pole, the second Metal Contact sheet be connected with power module negative pole, described second component comprise be connected with rechargeable battery positive pole the first metal contact, be connected with negative electrode of rechargeable batteries, and two stage clips be connected with the first metal contact, the second metal contact respectively, these two stage clips make that the first metal contact can contact with the first Metal Contact sheet, the second metal contact can contact with the second Metal Contact sheet.
Further, first, second component described is by the mutual adhesive of magnetic action.
Described switch module comprises for being arranged on the first coil on a door leaf and for being arranged on the second coil matched on another door leaf and with described first coil, described first coil is connected with power module, second coil is connected with rechargeable battery, described power module is alternating current, when two coils are close to each other, producing induced-current in described second coil is the charging of described rechargeable battery.
Another object of the present utility model is the door opener providing a kind of above-mentioned opening and closing device, comprises the executive module that is used to open or close door leaf and the battery of powering for this door opener and the signal receiver for receiving the control signal controlling this executive module action.
Another object again of the present utility model is to provide a kind of double door adopting above-mentioned opening and closing device, comprise two door leafs and opening and closing device, described opening and closing device comprises electronic box and is all electrically connected with described electronic box and the first door opener be connected with two described door leafs respectively and the second door opener, described electronic box comprises control module and signal projector, this control module is for receiving the control instruction of user and exporting the control signal controlling described door opener according to this control instruction, described signal projector is connected with described control module and launches the described control signal that described control module exports, described first door opener is provided with the signal receiver for reception control signal, this first door opener is also provided with battery for its power supply.
Preferably, described battery is rechargeable battery, and described electronic box comprises power module, and described second door opener is connected with power module by wire, and described power module is the charging of described rechargeable battery by a switch module.
Further, described switch module comprises and is installed on the first component on a door leaf and is installed on the second component matched on another door leaf and with described first component, described first component is connected with power module, described second component is connected with rechargeable battery, when the first component, second component contact, described power module is the charging of described rechargeable battery.
Further, described first component, second component are by the mutual adhesive of magnetic action.
Further, described switch module comprises the first coil and the second coil that cooperatively interact, described first coil to be installed on a door leaf and to be connected with power module, described second coil to be installed on another door leaf and to be connected with rechargeable battery, described power module is alternating current, when first, second coil is close to each other, producing induced-current in described second coil is rechargeable battery charging.
Compared with prior art, the utility model possesses following advantage: this double door can realize the opening and closing of two door leafs automatically according to the control instruction of user.Owing to not needing to be powered to a door opener away from electronic box by buried wire, decrease installation cost, avoid damaging ground.
[accompanying drawing explanation]
Fig. 1 is the structural representation of double door of the present utility model;
Fig. 2 a is the top view under the double door two door leaf open mode shown in Fig. 1;
Fig. 2 b is the top view under the double door two door leaf closed condition shown in Fig. 1;
Fig. 3 is the block diagram of the electronic box of double door shown in Fig. 1;
The schematic diagram of the first door opener that Fig. 4 is double door shown in Fig. 1;
The structural representation of an embodiment of the switch module that Fig. 5 a is double door shown in Fig. 1;
The circuit diagram that Fig. 5 b is connected with power module and rechargeable battery for the switch module shown in Fig. 5 a;
Fig. 5 c is the structural representation of another embodiment of the switch module of double door shown in Fig. 1;
The circuit diagram that Fig. 5 d is connected with power module and rechargeable battery for the switch module shown in Fig. 5 c;
Fig. 5 e is the structural representation of another embodiment of the switch module of double door shown in Fig. 1;
The circuit diagram that Fig. 5 f is connected with power module and rechargeable battery for the switch module shown in Fig. 5 e.
[detailed description of the invention]
Be further described the utility model below in conjunction with accompanying drawing and exemplary embodiment, wherein identical in accompanying drawing label all refers to identical parts.In addition, if the detailed description of known technology is for illustrating that feature of the present utility model is unnecessary, then omitted.
Fig. 1 to Fig. 5 f collectively illustrates double door 1000 of the present utility model, and what it can realize two door leafs 1 (comprising left-hand door fan 12 and right door leaf 11) automatically according to the control instruction of user opens or closes action.
As shown in Figure 1, this double door 1000 comprises left-hand door fan 12, right door leaf 11 and opening and closing device 2, described opening and closing device 2 comprises electronic box 20 and the first door opener 21, second door opener 22 be all connected with electronic box 20, and described first door opener 21 is connected with described right door leaf 11, described second door opener 22 is fanned 12 with described left-hand door and is connected.For ease of describing the annexation of door leaf 1 and opening and closing device 2, Fig. 1 also show wall or the doorframe 2000 of this double door 1000 installation place.
Usually, first door opener 21, it (is also the right side of right door leaf 11 that second door opener 22 is arranged on these double door 1000 both sides respectively, left-hand door fan 12 left side) wall or doorframe 2000 on, and the executive module 211 of the first door opener 21, the executive module 221 (expansion link of such as door opener) of the second door opener 22 respectively with door leaf 11, 12 connect, make execution group 211, two door leafs 11 during 221 execution a kind of action (such as expansion link contraction), 12 are opened, executive module 211, two door leafs 11 during 221 execution another kind of action (such as expansion link stretches out), 12 are closed, electronic box 20 is installed near the second door opener 22, and it is generally also arranged on wall or doorframe 2000.
Incorporated by reference to Fig. 3, described electronic box 20 comprises power module 201, control module 202 and signal projector 203, described power module 201 is powered for described control module 202 and signal projector 203, described control module 202 is for receiving, process the control instruction of user and exporting control signal for controlling two door openers 21,22, and described signal projector 203 is electrically connected with control module 202 and for launching the described control signal that described control module 202 exports.
Incorporated by reference to Fig. 4, described first door opener 21 is provided with battery 212 and signal receiver 213, and described battery 212 is powered for this first door opener 21, and described signal receiver 213 receives the described control signal that described signal projector 203 is launched.Certainly, the executive module 211 that this first door opener 21 also comprises its control unit 210 and is electrically connected with control unit 210, and described signal receiver 213 is electrically connected with this control unit 210, to make the control unit 210 of this first door opener 21 control the action of its executive module 211 according to this control signal that signal receiver 213 receives, and then control the opening or closing of right door leaf 11 that be connected with this first door opener 21.
Described second door opener 22 is connected with described power module 201 by wire 24, to use power module 201 as its working power.Described second door opener 22 is also electrically connected with described control module 202, controls the action of its executive module 221 to receive control signal that control module 202 exports, and then the left-hand door controlling to be connected with this second door opener 22 fans 12 open or close.
The actual needs that those skilled in the art can open or close according to two door leafs 11,12, write and store suitable program in control module 202, two door openers 21,22 can be respectively according to the control instruction of user to make control module 202 and send corresponding control signal.Such as, control control signal that two door leafs 11,12 successively open and should be two different control signals, successively perform its action to control two door openers 21,22 respectively.Because the sequential opened or closed of two door leafs and the relation of control instruction are well known to those skilled in the art, do not repeat for this reason.
In the utility model, battery 212 is adopted to power to the first door opener 21, the control signal of control first door opener 21 action is coordinated by signal projector 203 and signal receiver 213 reception realizing control signal, thus the control realized the first door opener 21, and then achieve the open and close controlling of the right door leaf 11 be connected with this first door opener 21.In other words, in the utility model, because control signal wirelessly transmits, therefore do not need as prior art, electricity is drawn to the first door opener 21 in underground line mode from described electronic box 20, both the wiring having eliminated the electric loop between electronic box 20 and the first door opener 21 is perplexed, and also decreases the installation cost of this opening and closing device 2 to a certain extent.
Certainly, in other embodiments, described second door opener 22 also can use battery to be its power supply, and it also can be transmitted into control signal in space by built-in signal receiver with Received signal strength transmitter 201.
Further, described battery 212 is rechargeable battery 212, to make this battery 212 to reuse, saves the use cost of this opening and closing device 2.
Further, described power module 201 is charged by the described rechargeable battery 212 that a switch module 23 is the first door opener 21.
Particularly, the second component 232 that described switch module 23 comprises the first component 231 and matches with described first component 231, described first component 231 be installed on left-hand door fan 12 on and be connected by wire 24 with power module 201, described second component 232 to be installed on right door leaf 11 and to be connected with rechargeable battery 212 by wire 24, and described first component 231, described second component 232 is arranged on two door leafs 11 respectively, 12 away from the lengthwise side of doorframe 2000, and described first, second component 231, 232 are mounted opposite, with two components 231, 232 wires 24 connected are laid in corresponding door leaf 11 respectively, on 12.
The position of two components 231,232 preferably flushes or substantially flush (not destroy the overall appearance of door leaf), when double door 1000 close, two door leafs 11,12 be combined time, described first component 231 contacts with second component 232, electric loop from power module 201 to rechargeable battery 212 is switched on, and described power module 201 charges for described rechargeable battery 212.
As above example, for opening and closing device 2 of the present utility model provides a kind of in real time, automatic charging modes, facilitate the charging to rechargeable battery 212, avoid rechargeable battery 212 to be unable to supply the first door opener 21 because electricity is low and to work and cause this double door 1000 cannot the problem of normal opening and closing, ensure that the normal opening and closing of this double door 1000.In addition, owing to not needing manually this rechargeable battery 212 to be disassembled again to its charging, make this opening and closing device 2 have feature easy to use, also save use cost to a certain extent.
Incorporated by reference to Fig. 5 a and Fig. 5 b, preferably, described first component 231 comprises the first metal contact 2310 be connected with power module 201 positive pole, the second metal contact 2315 be connected with power module 201 negative pole, and with two metal contacts 2310, 2315 connect and the electromagnetic valve 2314 be electrically connected with described control module 202, described second component 232 comprises the first Metal Contact sheet 2320 be connected with rechargeable battery 212 positive pole, the the second Metal Contact sheet 2325 be connected with rechargeable battery 212 negative pole, and described electromagnetic valve 2314 can make the first metal contact 2310 contact with the first Metal Contact sheet 2320 under the control of control module 202, second metal contact 2315 contacts with the second Metal Contact sheet 2325, thus the electric loop described in conducting between power module 201 and rechargeable battery 212, power module 201 is charged for rechargeable battery 212.
Incorporated by reference to Fig. 5 c and Fig. 5 d, in another embodiment, described first component 231 comprises the first Metal Contact sheet 2310 be connected with power module 201 positive pole, the the second Metal Contact sheet 2315 be connected with power module 201 negative pole, described second component 232 comprises the first metal contact 2320 be connected with rechargeable battery 212 positive pole, the second hard contact 2325 be connected with rechargeable battery 212 negative pole, and respectively with the first metal contact, two stage clips 2324 that second metal contact connects, these two stage clips 2324 make the first metal contact 2320 can contact with the first Metal Contact sheet 2310, second metal contact 2325 can contact with the second Metal Contact sheet 2315, thus the electric loop between turn-on power module 201 and rechargeable battery 212, power module 201 is charged for described rechargeable battery 212.
Further, for ease of contacting with each other of the first component 231 and second component 232, by the mutual adhesive of magnetic action between described first component 231 and second component 232.Such as, first component 231 can be provided with magnetic material in its surface (or near surperficial position), and (figure does not show, lower same), described second component 232 is provided with the material of iron plate and so on, or second component 232 is provided with the magnetic material contrary with the magnetic pole of the first component 231, to make between two components 231,232 by the mutual adhesive of magnetic action, its binding site is more firm, avoid two door leafs 11,12 to open voluntarily because of the interference (such as wind) in the external world, ensure that the normal use of this opening and closing device 2.
Above example provides the switch module 23 of contact, when its left and right door leaf 11,12 at this double door 1000 cuts out, by the electric loop contacting with each other between turn-on power module 201 and rechargeable battery 212 of two components 230,232, make it possible to utilize this power module 201 to charge for described rechargeable battery 212.
Incorporated by reference to Fig. 5 e and 5f, in another embodiment, provide a kind of non-contact switch module 23, this non-contact switch module 23 comprises first coil circuit 231 with the first coil 2310 and second coil circuit 232 with the second coil 2320, described first coil 2310 and the second coil 2320 cooperatively interact, and described first coil circuit 231 and the second coil circuit 232 also respectively have its match circuit 2311,2321.Described first coil 2310 be arranged on left-hand door fan 12 on and be connected with power module 201, described second coil 2320 to be installed on right door leaf 11 and to be connected with rechargeable battery 212, and the first coil 2310, second coil 2320 is arranged on two door leafs 11,12 respectively away from the lengthwise side of wall 2000.When two door leafs 11,12 of double door 1000 cut out, two coils 2310,2320 close to each other, described first coil 2310 produces magnetic field because of energising, produces induced-current in described second coil 2320, and this induced-current flows to rechargeable battery 212 and charges for it.
Should be noted that, when employing two coils cooperatively interacted, by induction generation current for rechargeable battery 212 charge time, described power module 201 should be the converting direct-current power into alternating-current power that power module 201 exports by the match circuit 2311 that is also provided with inverter in alternating current or described first component 231, be provided with the match circuit such as rectification and mu balanced circuit 2321 in described second component 232 and convert the alternating current that induction generates to direct current, then rechargeable battery is charged.Because inverter circuit and rectification circuit are well known to those skilled in the art, do not repeat for this reason!
Further, in order to protect described switch module 23, switch module 23 is made to avoid by artificial destruction or carry out waterproofing protection to switch module 23 or prevent from getting an electric shock, this opening and closing device 2 is also respectively equipped with the first component (or first coil circuit), second component (or second coil circuit) cover protection box 25 in the inner, the protecgulum 252 that described protection box 25 comprises bonnet 251 and can fasten with bonnet 251, the bottom of described bonnet 251 is provided with plant-grid connection hole (non-label), described protecgulum 252 is provided with the through hole that passes for above-mentioned metal contact or above-mentioned Metal Contact sheet is affixed on described protecgulum 252.
Generally speaking, the invention provides contact and contactless switch module 23, power module is charged for described rechargeable battery 212 by this switch module 23.This switch module 23 is made up of the two parts be arranged on respectively on two door leafs 11,12, wherein, a part is connected with power module, another part is connected with rechargeable battery, when two door leafs 11,12 of double door 1000 cut out, two parts of this switch module 23 contact with each other or close to each other, and power module 201 is charged for rechargeable battery 212 by this switch module 23.Thus, the charging circuit for rechargeable battery 212 is divided into two parts and is laid on two door leafs 1, no longer need wire to be embedded in ground, install more for convenience, can not damage ground.
In the present embodiment, described double door 1000 includes but not limited to iron skill door, garden door, villa door etc.
In addition, although embodiment is above all so that the structure of opening and closing device 2 of the present utility model, operating principle and installation site relation to be described in conjunction with double door 1000.It is pointed out that this opening and closing device 2 also can be used on the door of other two-door fans of such as composite door, control with the automatic shutter realizing two door leafs 1.
Although shown exemplary embodiments more of the present utility model above, but it should be appreciated by those skilled in the art that, when not departing from principle of the present utility model or spirit, can make a change these exemplary embodiments, scope of the present utility model is by claim and equivalents thereof.
Claims (14)
1. a two-door opening and closing device, it is characterized in that, comprise electronic box and be all electrically connected with described electronic box and be respectively used to the first door opener and second door opener of the opening and closing of control two door leafs, this electronic box comprises the control module of the control signal for exporting control two door openers according to the control instruction of user and is electrically connected with described control module and signal projector for launching described control signal, and described first door opener is provided with the signal receiver for receiving described control signal and the battery for powering to the first door opener.
2. two-door opening and closing device according to claim 1, is characterized in that, described electronic box also comprises power module, and described second door opener is connected with described power module by wire.
3. two-door opening and closing device according to claim 2, is characterized in that, described battery is rechargeable battery, and described power module is the charging of described rechargeable battery by a switch module.
4. two-door opening and closing device according to claim 3, it is characterized in that, this switch module comprises for being arranged on the first component on a door leaf and for being arranged on the second component matched on another door leaf and with described first component, described first component is connected with power module, described second component is connected with described rechargeable battery, when two components contact, described power module is the charging of described rechargeable battery.
5. two-door opening and closing device according to claim 4, it is characterized in that, described first component comprises the first metal contact be connected with power module positive pole, the second metal contact be connected with power module negative pole, and be connected and the electromagnetic valve be electrically connected with described control module with two metal contacts, described second component comprises the first Metal Contact sheet be connected with rechargeable battery positive pole, the the second Metal Contact sheet be connected with negative electrode of rechargeable batteries, and described electromagnetic valve can make the first metal contact contact with the first Metal Contact sheet under the control of control module, second metal contact contacts with the second Metal Contact sheet.
6. two-door opening and closing device according to claim 4, it is characterized in that, described first component comprises the first Metal Contact sheet be connected with power module positive pole, the the second Metal Contact sheet be connected with power module negative pole, described second component comprises the first metal contact be connected with rechargeable battery positive pole, be connected with negative electrode of rechargeable batteries, and respectively with the first metal contact, two stage clips that second metal contact connects, these two stage clips make the first metal contact can contact with the first Metal Contact sheet, second metal contact can contact with the second Metal Contact sheet.
7. two-door opening and closing device according to claim 4, is characterized in that, first, second component described is by the mutual adhesive of magnetic action.
8. two-door opening and closing device according to claim 3, it is characterized in that, described switch module comprises for being arranged on the first coil on a door leaf and for being arranged on the second coil matched on another door leaf and with described first coil, described first coil is connected with power module, second coil is connected with rechargeable battery, and described power module is alternating current, when two coils are close to each other, produce induced-current in described second coil and be the charging of described rechargeable battery.
9. a door opener, comprises the executive module being used to open or close door leaf, it is characterized in that, also comprises the battery and signal receiver of powering for this door opener, and this signal receiver controls the control signal of this executive module action for receiving.
10. a double door, comprise two door leafs and opening and closing device, described opening and closing device comprises electronic box and is all electrically connected with described electronic box and the first door opener be connected with two described door leafs respectively and the second door opener, it is characterized in that, described electronic box comprises control instruction for receiving user and exports the control module of the control signal controlling described door opener according to this control instruction and be connected with described control module and signal projector for launching described control signal, described first door opener is provided with for the signal receiver of reception control signal and the battery of powering for this first door opener.
11. double doors according to claim 10, it is characterized in that, described battery is rechargeable battery, and described electronic box comprises power module, described second door opener is connected with power module by wire, and described power module is the charging of described rechargeable battery by a switch module.
12. double doors according to claim 11, it is characterized in that, described switch module comprises and is installed on the first component on a door leaf and is installed on the second component matched on another door leaf and with described first component, described first component is connected with power module, described second component is connected with rechargeable battery, when the first component, second component contact, described power module is the charging of described rechargeable battery.
13. double doors according to claim 12, is characterized in that, described first component, second component are by the mutual adhesive of magnetic action.
14. double doors according to claim 11, it is characterized in that, described switch module comprises and is installed on the first coil on a door leaf and is installed on the second coil matched on another door leaf and with described first coil, described first coil is connected with power module, described second coil is connected with rechargeable battery, and described power module is alternating current, when first, second coil is close to each other, producing induced-current in described second coil is rechargeable battery charging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520344303.5U CN204827018U (en) | 2015-05-25 | 2015-05-25 | Two doors are with switching device, door starter and two opening door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520344303.5U CN204827018U (en) | 2015-05-25 | 2015-05-25 | Two doors are with switching device, door starter and two opening door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204827018U true CN204827018U (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520344303.5U Active CN204827018U (en) | 2015-05-25 | 2015-05-25 | Two doors are with switching device, door starter and two opening door |
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| CN (1) | CN204827018U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108765652A (en) * | 2018-05-16 | 2018-11-06 | 芜湖众梦电子科技有限公司 | A kind of energy-saving dialing control intelligent access control system of computer based |
| CN108894658A (en) * | 2018-08-29 | 2018-11-27 | 株洲中车特种装备科技有限公司 | A kind of large span remote operation opposite opened activity sound insulation house device |
-
2015
- 2015-05-25 CN CN201520344303.5U patent/CN204827018U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108765652A (en) * | 2018-05-16 | 2018-11-06 | 芜湖众梦电子科技有限公司 | A kind of energy-saving dialing control intelligent access control system of computer based |
| CN108894658A (en) * | 2018-08-29 | 2018-11-27 | 株洲中车特种装备科技有限公司 | A kind of large span remote operation opposite opened activity sound insulation house device |
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