CN202611498U - Full-automatic suspension type two-dimensional electromagnetic shielding door with arc guide rail - Google Patents
Full-automatic suspension type two-dimensional electromagnetic shielding door with arc guide rail Download PDFInfo
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- CN202611498U CN202611498U CN2012202291351U CN201220229135U CN202611498U CN 202611498 U CN202611498 U CN 202611498U CN 2012202291351 U CN2012202291351 U CN 2012202291351U CN 201220229135 U CN201220229135 U CN 201220229135U CN 202611498 U CN202611498 U CN 202611498U
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Abstract
The utility model discloses a full-automatic suspension type two-dimensional electromagnetic shielding door with an arc guide rail. The shielding door comprises a door frame, a door leaf and a control system, wherein the door frame is fixed on the side wall of a shielding chamber; the surrounding of the door frame is seamlessly welded with a steel plate of a shielding body; a support frame is arranged outside the door frame; a suspending displacement device for suspending the moving door leaf is arranged on the support frame; the door leaf is arranged on the lower part of the suspending displacement device; a motor and a synchronous device are arranged on the suspending displacement device; the motor and the synchronous device are controlled by the control system to drive the door leaf to do the two-dimensional vertical and translation motions on the lower part of the suspending displacement device. By the shielding door, the influence of inertia of the large-scale suspension type shielding door on the operation stability is eliminated, the quantity of the motors of the shielding door is reduced, the structure is reasonable, and the control is reliable; and because an engagement mode of a cutter groove and a pneumatic locking mechanism are adopted, accurate alignment of the door leaf and the door frame and the stable and reliable engagement are guaranteed, the deformation of the door leaf and the door frame which possibly occurs in the use process is reduced to the maximum extent, and the high shielding efficiency is guaranteed.
Description
Technical field
The utility model relates to engineering electromagnetic protection technology (electromangnetic spectrum) field, relates generally to a kind of large automatic suspension type arc-shaped guide rail two-dimensional electromagnetic shield door.
Background technology
Along with development of electronic technology; Various dual-use electronics and system are used widely; Thus the various electromagnetic waves of radiation on certain time domain, spatial domain, frequency domain, intersect in length and breadth, staggered, intensive overlapping continuously; Form complex electromagnetic environments, caused serious electromagnetic pollution.These complex electromagnetic environments not only can form interference or damage to electronic equipment and system; Also can bring harm to health; More serious is to hit the information security issue that causes by ELECTROMAGNETIC WEAPON, may direct threats arrive national politics, economy and military safety.Therefore, effectively reduce electromagnetic radiation, prevent electromagnetic interference, the protection important goal, the protection personnel health, the important content that becomes research and pay close attention to, corresponding various electromagnetic protection technology also are developed.
Electromangnetic spectrum is most important a kind of electromagnetic protection technology; It is closed through the zone that the shield shell (screened room entity or non-physical) that utilizes shielding material (conductive material or permeability magnetic material) to make will protect; Form electromagnetic isolation; It mainly be utilize shield shell to electromagnetic energy reflect, absorption etc., thereby intercept or decay conductively-closed district and extraneous electromagnetic energy travels.What application was the most ripe at present is to adopt steel plate to be welded into the electromagnetic shielding chamber of shield shell form.Electromagnetic shield door is a requisite visual plant in the various electromagnetic shielding chambers such as shielding machine room etc., and its performance has directly determined the bulk shielding usefulness of screened room.
Ripe at present electromagnetic shield door can be divided into three major types: manual shield door, half manual semi-automatic shield door, full-automatic shield door.The first kind is manual shield door.The on-off mode of this door is to adopt hinge rotary; Pure manually-operated; The door opening size is generally 850 mm * 1900 mm of standard, and hermetically-sealed construction is generally cutter groove, reed plug-in, and weight is moderate; It generally is applied to shield in the not high small-sized screened room of rank, and confession personnel and mini-plant are come in and gone out.Second type is half manual semi-automatic shield door.The structure of this door has just increased motor and cutter groove quantity with manually shield door is basic identical.At first needing artificially to shift shield door onto certain position at closing time, motor setting in motion and with door closure then, when opening the door action opposite, it generally is applied to shield in the higher small-sized screened room of rank, using maximum on the engineering is exactly this shield door.The 3rd type is full-automatic shield door.This door generally only is used for the large-scale shield door of weight very heavy (about 3 tons), and its size is decided as required, and generally about 4m * 4m, shield effectiveness is also had relatively high expectations, and therefore design and making are relatively more difficult.The on-off mode of this door can only adopt multidimensional to move and realize; And all be to adopt multiple motors, sychronisation had relatively high expectations that deflection, phenomenon such as stuck often appear in shield door in design in the past; Compare small-sized shield door; Large automatic shield door is complicated more in structure composition, the method for operation, the speed of service and on controling, and technology content is higher, and it is mainly used in large-sized electromagnetic shielding chambers such as microwave dark room.In addition, about 200mm above ground level is generally wanted in the doorframe lower edge of this structure, and this just makes troubles to main equipment turnover screened room, needs and takes measures pointedly to solve.
Because full automatic large-scale shield door has urgent demand; Have broad application prospects; And large-scale shield door in the market also is difficult to satisfy instructions for use, and therefore, the large-scale shield door of developing full-automatic high-performance quick and stable switching becomes the difficult problem that practical applications must solve.
Summary of the invention
The purpose of the utility model provide a kind of applied range, the turnover of easy to operate, stable and reliable for performance, main equipment convenient, can realize the large automatic electromagnetic shield door of suspension type arc-shaped guide rail that two dimension moves.
The purpose of utility model can adopt following technical scheme to realize: described electromagnetic shield door comprises doorframe, door leaf, control system; Doorframe is fixed on the sidewall of screened room; There is not seam welding with the shield steel plate all around; At doorframe outer setting support frame, support frame is provided with and is used to hang the suspension gearshift that moves door leaf, and door leaf is arranged on the bottom of suspension gearshift; The suspension gearshift is provided with motor and sychronisation, drives door leaf through control system control motor and sychronisation and does vertical mobile with the translation two dimension in suspension gearshift bottom.
Described suspension gearshift comprises longitudinal rail (X axial displacement guide rail) perpendicular to door opening, is parallel to the cross slide way (Y axial displacement guide rail) and the arc-shaped guide rail on door opening plane; The Y axis rail is fixed on the support frame; X axial displacement guide rail top is provided with Y shaft roller hitch; X axial displacement guide rail is suspended on the Y axial displacement guide rail through Y shaft roller mechanism, and door leaf top is provided with X shaft roller hitch, and is suspended on the X axial displacement guide rail through X shaft roller mechanism; Arc-shaped guide rail is arranged on support frame top, and motor and sychronisation are arranged on the bottom of arc-shaped guide rail, and motor and sychronisation are connected with X shaft roller hitch and Y shaft roller hitch respectively.
Described X axial displacement guide rail is two, laterally arranges; Y axial displacement guide rail is two, laterally arranges, and door leaf is suspended between two X axis rails through X shaft roller hitch, between two relative X shaft roller hitches fixed connecting piece is set, and is used for fixing both spacings.
Because the inertia of door causes waving, and the arranged outside door leaf adjusting device at door comprises movable support rod and set bolt, and movable support rod one end is connected with door leaf, be connected bottom the other end and the X axial displacement guide rail when preventing to move.
The slotting tool that twice are parallel to an edge is set around the described door leaf, slot is set around the doorframe, the tight engagement of slotting tool and slot had guaranteed the electric sealing of door when door was closed, had improved its shield effectiveness.
Between described doorframe and the door leaf locking device is set; It comprises spherical locking head, wedge lock groove; The wedge lock groove is arranged on around the doorframe, in doorframe, is provided with expansion link and cylinder, and expansion link one end is connected with cylinder; The other end is provided with spherical locking head, and spherical locking head and wedge lock groove are corresponding.
Described door leaf below is provided with trench; The automatic lifting platform of moving into one's husband's household upon marriage is set in trench; The described automatic lifting platform of moving into one's husband's household upon marriage comprises electromagnetic valve, hydraulicefficiency elevation structure and steel plate type platform; Hydraulicefficiency elevation structure mechanism is arranged on the door leaf below, and the steel plate type platform is arranged on hydraulicefficiency elevation structure top, and hydraulicefficiency elevation structure is connected with electromagnetic valve.
The hanging arc-shaped guide rail two-dimensional electromagnetic of the automatic suspension shield door characteristics of the utility model design are: (1) shield effectiveness is high, superior performance.The tight engagement that door leaf, the employed thickness of doorframe are not less than cold-rolled steel sheet, section bar and the four row's cutter grooves of 5mm has guaranteed that shield door has very high shield effectiveness; (2) shield door fully automatic operation, number of motors is few, and is reliable and stable, is convenient to safeguard.Adopt variable-frequency governor and alignment sensor to cooperate programmable logic controller to realize full-automatic unlatching, closure and the emergency braking function of door.Adopt the photoelectricity alignment sensor to combine arc-shaped guide rail and retaining mechanism to guarantee the accurate location between door leaf slotting tool and doorframe cutter groove.Adopt motor-driven to realize the moving of X, Y axle of door leaf, guarantee that door leaf moves steadily, easy to maintenance; (3) Design of Mechanical Structure is scientific and reasonable.Adopt suspension type system, arc-shaped guide rail system and pneuma-lock mechanism, make the center of gravity of whole door leaf more stable, make the operation of door more smooth and easy, make the location of door more accurate, make overall structure more reasonable, control more reliable.(4) the full-automatic door running space can be regulated, and the vertically moving direction and can allow on door leaf suspension large scale absorbing material of door leaf, when being particluarly suitable for shield door and being applied in the large-scale microwave dark room, the door opening size is bigger, can allow the discrepancy of main equipment.(5) move into one's husband's household upon marriage podium design novelty, practicality of automatic lifting.Door and doorframe integral body be reduced to below ground, designed automatic lifting move into one's husband's household upon marriage platform remedy door and open after in front of the door depression, personnel and main equipment are passed in and out make things convenient for.
The utility model novel and reasonable design, function admirable, index is advanced; Simple to operate, easy to maintenance, adopt accurate control system, arc-shaped guide rail structure and variable-frequency control technique cleverly; The operation whole-course automation of shield door has solved the influence of the inertia of large suspension-type shield door to operation stability, and the shield door number of motors still less; Structure is more reasonable, controls more reliable.Adopt cutter groove engagement system, pneuma-lock mechanism guaranteed door leaf, doorframe accurately to the steady positive engagement of near peace, reduced the door leaf that possibly occur in using, the distortion of doorframe to greatest extent, and guaranteed high shield effectiveness.Through regulating the full-automatic door running space and adopting the automatic lifting platform of moving into one's husband's household upon marriage, make the shield door range of application wider, it is more convenient that personnel and main equipment are passed in and out.
Description of drawings
Fig. 1 is the structure elevation of the utility model.
Fig. 2 is the lateral view of Fig. 1.
Fig. 3 is the vertical view of Fig. 1.
Fig. 4 is the enlarged drawing of locking device.
Fig. 5 is the enlarged drawing of suspension gearshift.
Among the figure: 1, doorframe, 2, locking device, 3, door leaf, 4, the door leaf adjusting device, 5, support frame; 6, Y axial displacement guide rail, 7, X axial displacement guide rail, 8, the suspension gearshift, 9, motor and sychronisation, 10, arc-shaped guide rail; 11, alignment sensor, 12, cylinder, 13, the automatic lifting platform of moving into one's husband's household upon marriage, 14, trench; 15, control system, 16, air pump, 17, the wedge lock groove, 18, spherical locking head; 19, cutter groove geared assembly, 20, Y shaft roller hitch, 21, X shaft roller hitch, 22, fixed connecting piece.
The specific embodiment
In conjunction with accompanying drawing, the specific embodiment of the utility model is described.
Shown in accompanying drawing, the described electromagnetic shield door door opening of present embodiment is of a size of: 4000mm * 4000mm, the structure and the operating condition of the described full-automatic electromagnetic shield door of 4000mm * 4000mm are following: shield door mainly is made up of doorframe 1 and door leaf 3 two parts.Described electromagnetic shield door comprises doorframe 1, door leaf 3, control system 15; Doorframe 1 is fixed on the sidewall of screened room; There is not seam welding with the shield steel plate all around; At doorframe 1 outer setting support frame 5, support frame 5 is provided with and is used to hang the suspension gearshift 8 that moves door leaf, and door leaf 3 is arranged on the bottom of suspension gearshift 8; Suspension gearshift 8 is provided with motor and sychronisation 9, drives door leaf through control system 15 control motors and sychronisation and does vertical mobile with the translation two dimension in suspension gearshift bottom.Doorframe 1 is weldingly fixed on the sidewall of screened room, is formed steel construction, does not have seam welding with the shield steel plate all around; Be designed to two row's steel grooves around the inside casing, the two-sided copper facing of groove, both sides overlay the beryllium-bronze spring finger in the groove.Door leaf 3 also is a steel structure, is welded by shaped steel skeleton and steel plate, and periphery is designed to twice steel slotting tool structure, and the two-sided copper facing of slotting tool is with the groove formation cutter groove geared assembly 19 on the doorframe.Totally 8 of shield door locking devices 2 are distributed in the every limit of shield door and are provided with two, and latch segment is made up of with the spherical locking head 18 that is fixed on the door leaf the wedge lock groove 17 that is fixed on the doorframe, so that the locking door leaf; Connect an expansion link that is hidden in the shield door framework on the spherical locking head; 8 cover expansion links and cylinder through ingenious Machine Design form transmission device 12 jointly; Cylinder moving drives the expansion link interlock; Expansion link finally drives spherical locking head and in the wedge shape guide groove, seesaws, and reaches the purpose of opening or closing door leaf.When shield door was fastened, the cutter groove accurately meshed and by means of latch segment door leaf and doorframe is compressed, and guarantees that shield effectiveness reaches requirement.
Described suspension gearshift comprises X axial displacement guide rail 7 perpendicular to door opening, be parallel to laterally the Y axial displacement guide rail 6 and the arc-shaped guide rail 12 longitudinally on door opening plane; Y axial displacement guide rail 6 is fixed on the carriage 5; X axial displacement guide rail 7 tops are provided with Y shaft roller hitch 20; X axial displacement guide rail 7 is suspended on the Y axial displacement guide rail 6 through Y shaft roller hitch 20, and door leaf 3 tops are provided with X shaft roller hitch 21, and is suspended on the X axis rail through X shaft roller hitch 21; Arc-shaped guide rail 10 is arranged on support frame 5 tops, and motor and sychronisation 9 are arranged on the bottom of arc-shaped guide rail 10, and motor and sychronisation 9 are connected with X shaft roller hitch 21 and Y shaft roller hitch 20 respectively.X axial displacement guide rail is two, laterally arranges; Y axial displacement guide rail is two, laterally arranges, and door leaf is suspended between two X axis rails through X shaft roller hitch, between two relative X shaft roller hitches fixed connecting piece 22 is set, and is used for fixing both spacings.
Certain position is provided with photoelectricity alignment sensor 11 on arc-shaped guide rail 10, is used to limit the even running and accurate location of shield door.A motor and sychronisation 9 are equipped with in arc-shaped guide rail 10 belows, and speed-limiting switch and photoelectricity position-sensing switch are set in the cabinet of motor, and when door was opened or closed, door leaf was done two-dimensional motion along arc-shaped guide rail 10 and X axle Y axial displacement guide rail under the driving of motor.Be the center of gravity of guaranteeing whole fan door deflection not, and strengthen the stability that door leaf is in operation, the door leaf adjusting device is housed, mainly forms, conveniently adjusting by two movable inclined support bars and fastening bolt in the outside of door leaf.
When door is opened, provide the instruction of opening the door through door open button, the pneuma-lock parts are started working, eight telescopic lever withdrawals, and the cutter groove separates, and carries out the X axial displacement, and door leaf stops after throwing off the reed trough certain distance; Electric motor starting then, ground-engaging element is started working, and door leaf puts in place along the walking of Y axle, and the gate is opened; Be arranged on automatic lifting in the trench platform of moving into one's husband's household upon marriage at last and rise automatically, concordant with ground.Action was opposite when door was closed.Adopt motor-driven to realize the moving of X, Y axle of door leaf here, guarantee that door leaf moves steadily, does not creep, does not stop; Locking point is all arranged around the door leaf, guarantee the parallel locking of door leaf with doorframe, not crooked, guaranteed the stressed uniformity of door, reduce the distortion that door and doorframe possibility causes owing to unbalance stress, guarantee the better engagement of cutter groove.
About 200mm above ground level is generally wanted in the doorframe lower edge of large-scale shield door; The personnel of giving and main equipment turnover are made troubles; Through trench 14 door and doorframe integral body are reduced to below ground, the automatic lifting platform 13 of moving into one's husband's household upon marriage is dropping in the trench at closing time, when opening the door, rises concordant with ground automatically.The automatic lifting platform of moving into one's husband's household upon marriage mainly is made up of electromagnetic valve, hydraulicefficiency elevation structure, steel plate type platform, it can remedy door open after in front of the door depression, guaranteed electromagnetic shielding chamber passing through smoothly in front of the door.
Automatic control system 15 comprises programmable logic controller, variable-frequency governor, relay, alignment sensor, charge valve etc., and core is the programmable logic controller PLC that storage inside has the various run action programs of shield door.Two-dimentional shield door adopts PLC control, and each action is all free to be protected and double electic protection, has improved the automatic operating degree of door, has guaranteed the safe operation of door, has guaranteed that the quick and stable of door moves simultaneously again.The control system is simple to operate, and just can realize the corresponding actions of door through " open the door, close the door, brake hard " three hand push buttons that are provided with: press " open the door, close the door " button, PLC starts the corresponding actions program, and shield door brings into operation; Press " brake hard " button, shield door is out of service at once; Be in operation, door run location and status information that PLC provides according to alignment sensor and speed-limiting switch, through the frequency conversion of relay control frequency converter, frequency converter is then adjusted motor speed, in time adjusts the door leaf speed of service and state.Through whole-process automatic control, guarantee the stable accurately operation of door, the various faults of avoiding the human operational error to cause.
The process of opening the door at gate is divided into four-stage: the phase I, and pneumatic mechanism work, slotting tool separates with the cutter groove; Second stage, machine operation, door leaf vertically leave door opening longitudinally (X axle) outwards move; Phase III, machine operation, door leaf level are left door opening and are moved to the side along horizontal (Y axle); Stage, hydraulic work system, move into one's husband's household upon marriage platform 13 of automatic lifting rises and puts in place.The process of closing the door is the inverse process that opens the door.Importance for its operation of large-scale shield door of large scale like this and weight is controlled well imagines that especially in case of emergency, shield door must can be realized brake hard, could guarantee the safety of shield door, other contingencies can not take place.Therefore, designed one the cover operation control system, to shield door open the door, close the door and brake hard control effectively.
In sum; The hanging arc-shaped guide rail two-dimensional electromagnetic of automatic suspension shield door has been taked automatic control system, suspension displacement system, arc-shaped guide rail system, shield door and retaining mechanism, automatic lifting move into one's husband's household upon marriage new technology and measures such as platform in design; Only use a motor-driven; Guaranteed the stable accurately operation at gate, steadily fast moving, cutter groove accurately mesh, uniform and stable locking and unclamping, realized whole-course automation and high shield effectiveness.Through performance test repeatedly and running experiment many times, the key technical indexes that present embodiment reaches is following:
Shield effectiveness: electric field decay＞90dB, field decay＞80dB, plane wave decay＞100dB; The door leaf location: suspension type is fixed, the arc-shaped guide rail guiding, and the photoelectric sensor location, error is not more than 3mm; Working method: Automatic Control, electric translation, pneuma-lock, hydraulic lifting.Automatic lifting 5 tons of the platform load-bearing of moving into one's husband's household upon marriage.
Can explain the utility model in more detail through the above embodiments, disclosed purpose is intended to protect all variations and the improvement in the utility model scope, and the utility model is not limited to top embodiment.
Claims (7)
1. the hanging arc-shaped guide rail two-dimensional electromagnetic of automatic suspension shield door; Comprise doorframe (1), door leaf (3), control system (15); Doorframe (1) is fixed on the sidewall of screened room; There is not seam welding with the shield steel plate all around; It is characterized in that: at doorframe (1) outer setting support frame (5), support frame (5) is provided with and is used to hang the suspension gearshift (8) that moves door leaf, and door leaf (3) is arranged on the bottom of suspension gearshift (8); Suspension gearshift (8) is provided with motor and sychronisation (9), drives door leaf (3) through control system (8) control motor and sychronisation (9) and does vertical mobile with the translation two dimension in suspension gearshift (8) bottom.
2. according to the hanging arc-shaped guide rail two-dimensional electromagnetic of the said automatic suspension of claim 1 shield door; It is characterized in that: described suspension gearshift (8) comprises the vertical X axial displacement guide rail (7) perpendicular to door opening, the horizontal Y axial displacement guide rail (6) that is parallel to the door opening plane and arc-shaped guide rail (10); Y axial displacement guide rail (6) is fixed on the support frame; X axial displacement guide rail (7) top is provided with Y shaft roller hitch (20); X axial displacement guide rail (7) is suspended on the Y axial displacement guide rail (6) through Y shaft roller mechanism; Door leaf (3) top is provided with X shaft roller hitch (10), and is suspended on the X axial displacement guide rail (7) through X shaft roller hitch (21); Arc-shaped guide rail (21) is arranged on support frame top, and motor and sychronisation (9) are arranged on the bottom of arc-shaped guide rail (21), and motor and sychronisation (9) are connected with X shaft roller hitch (21) and Y shaft roller hitch (20) respectively.
3. according to the hanging arc-shaped guide rail two-dimensional electromagnetic of the said automatic suspension of claim 2 shield door, it is characterized in that: described X axial displacement guide rail (7) is two, laterally arranges; Y axial displacement guide rail (6) is two; Laterally arrange; Door leaf (3) is suspended between two X axis rails (7) through X shaft roller hitch (21), is provided for fixing both fixed connecting piece (22) of spacing between relative two X shaft roller hitches (21).
4. according to the hanging arc-shaped guide rail two-dimensional electromagnetic of the said automatic suspension of claim 1 shield door; It is characterized in that: in the arranged outside door leaf adjusting device (4) of door leaf; Described door leaf adjusting device (4) comprises movable support rod and set bolt; Movable support rod one end is connected with door leaf, and the other end is connected with X axial displacement guide rail (7) bottom.
5. according to the hanging arc-shaped guide rail two-dimensional electromagnetic of the said automatic suspension of claim 1 shield door; It is characterized in that: described door leaf (3) is provided with the slotting tool that twice are parallel to an edge on every side; Slot is set around the doorframe, and the tight engagement of slotting tool and slot forms cutter groove geared assembly (19).
6. according to the hanging arc-shaped guide rail two-dimensional electromagnetic of the said automatic suspension of claim 1 shield door; It is characterized in that: between described doorframe (1) and the door leaf (3) locking device (2) is set; Described locking device (2) comprises spherical locking head (18), wedge lock groove (17); The wedge lock groove is arranged on doorframe (1) all around, in doorframe (1), is provided with expansion link and cylinder (12), and expansion link one end is connected with cylinder (12); The other end is connected with spherical locking head (18), spherical locking head (18) and wedge lock groove (17) correspondence.
7. according to the hanging arc-shaped guide rail two-dimensional electromagnetic of the said automatic suspension of claim 1 shield door; It is characterized in that: described door leaf (3) below is provided with trench (14); The automatic lifting platform (13) of moving into one's husband's household upon marriage is set in trench (14), and the described automatic lifting platform (13) of moving into one's husband's household upon marriage comprises electromagnetic valve, hydraulicefficiency elevation structure and steel plate type platform, and hydraulicefficiency elevation structure mechanism is arranged on the door leaf below; The steel plate type platform is arranged on hydraulicefficiency elevation structure top, and hydraulicefficiency elevation structure is connected with electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202291351U CN202611498U (en) | 2012-05-22 | 2012-05-22 | Full-automatic suspension type two-dimensional electromagnetic shielding door with arc guide rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202291351U CN202611498U (en) | 2012-05-22 | 2012-05-22 | Full-automatic suspension type two-dimensional electromagnetic shielding door with arc guide rail |
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| Publication Number | Publication Date |
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| CN202611498U true CN202611498U (en) | 2012-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202291351U Expired - Fee Related CN202611498U (en) | 2012-05-22 | 2012-05-22 | Full-automatic suspension type two-dimensional electromagnetic shielding door with arc guide rail |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661113A (en) * | 2012-05-22 | 2012-09-12 | 中国人民解放军总参谋部工程兵科研三所 | Fully-automatic suspension type two-dimensional electromagnetic shielding door with arc-shaped guide rails |
| CN104453602A (en) * | 2014-12-18 | 2015-03-25 | 宁波市北仑海伯精密机械制造有限公司 | Noise avoiding method for electric window |
| CN110206452A (en) * | 2019-07-10 | 2019-09-06 | 德屹智能科技(扬州)有限公司 | A kind of automatic rotary door |
-
2012
- 2012-05-22 CN CN2012202291351U patent/CN202611498U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661113A (en) * | 2012-05-22 | 2012-09-12 | 中国人民解放军总参谋部工程兵科研三所 | Fully-automatic suspension type two-dimensional electromagnetic shielding door with arc-shaped guide rails |
| CN102661113B (en) * | 2012-05-22 | 2014-10-29 | 中国人民解放军总参谋部工程兵科研三所 | Fully-automatic suspension type two-dimensional electromagnetic shielding door with arc-shaped guide rails |
| CN104453602A (en) * | 2014-12-18 | 2015-03-25 | 宁波市北仑海伯精密机械制造有限公司 | Noise avoiding method for electric window |
| CN104453602B (en) * | 2014-12-18 | 2016-05-25 | 宁波市北仑海伯精密机械制造有限公司 | A kind of motorized window keep away method for de-noising |
| CN110206452A (en) * | 2019-07-10 | 2019-09-06 | 德屹智能科技(扬州)有限公司 | A kind of automatic rotary door |
| CN110206452B (en) * | 2019-07-10 | 2024-04-09 | 德屹智能科技(扬州)有限公司 | Automatic revolving door |
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Granted publication date: 20121219 Termination date: 20150522 |
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| EXPY | Termination of patent right or utility model |