CN207748893U - A kind of device for electrochemical water preparation with locking mechanism - Google Patents

Abstract

The utility model is related to a kind of device for electrochemical water preparation with locking mechanism, linear actuator includes movable part, guide rail, the lower end of movable part connects door body and can be moved along guide rail, the shaft of rotary motion executing agency is vertical and is rotationally connected with box top wall outer surface, and one end of guide rail is fixedly connected on shaft；The T-type pivot edge of a wing end of locking mechanism is rotationally connected with box outer surface, and web member end is threadedly coupled with runner；When door body is in babinet is fixedly connected with state, guide rail is perpendicular with door body, and door body is stuck between babinet and runner；When in disassembly status, door body is moved along guide rail until the pole plate in door body is fully drawn out by movable part, and door body can be rotated by the rotation of shaft.Locking between the utility model water treatment facilities door body and babinet is firm, and door body opens simple and convenient, the treating capacity raising of the device useful space, and installation space becomes smaller under equal conditions, adapts to different operating modes, and device O＆M is simple and convenient.

Description

A kind of device for electrochemical water preparation with locking mechanism

Technical field

The utility model is related to electro-chemical water process field more particularly to a kind of electro-chemical water processing with locking mechanism Device.

Background technology

Currently, the country is for industrial circulation water treatment system, it is common to use add water stabilization medicament to improve recirculated water The cycles of concentration of system, to reduce new water amount of makeup water and sewage treatment.Traditional water stabilization medicament includes mainly：Inhibition Agent, antisludging agent, fungicide etc., for the fouling and corrosion of pipeline and equipment in control loop water system, in addition to being used for water every year Except the medicament somewhat expensive and operating cost height of matter processing, there is also problems with：(1) chemical agent usage amount is larger, It is transported and storage pollutes the environment in the process；(2) medicament itself can form suspended matter and precipitation in circulation, pollution Circulating water quality；(3) raising of circulation conductivity, acceleration system blowdown can be caused after medicament by adding；(4) sewerage by In containing water treatment agent, secondary pollution can be generated to environment with the discharge of trade effluent.

Therefore, it is necessary to develop a kind of economical and practical method for treating circulating cooling water so that the above problem be resolved and Improve.In recent years, domestic and international scientist proposes and a kind of perfect so-called " high-level oxidation technology " method that this method passes through comprehensive The processing for carrying out organic sewage using light, sound, electricity, magnetic or innocuous agents catalytic oxidation technologies is closed, good effect has been obtained.It is high Grade oxidation technology method is more difficult to degrade before capable of handling and endangers biotic environment larger Components of Organic Pollutants, to become The forward position of current sewage disposal research and application.And the one kind of electrochemical water treatment technology as high-level oxidation technology, due to it The advantages that cleaning, environmental-friendly, using water wisely, selects well as one of technology of industrial recirculating cooling water treatment.Electrochemistry The inhibition of circulating water quality stabilization treatment technology, scale inhibition, sterilization algae removal effect are good, need not be thrown using the recirculated water of this technology Add any chemical agent, and force water amount of blowdown few, can not only save medicament expense and moisturizing expense, but also has energy saving well subtract Row and environmental protection effect.

Electrochemical water treatment technology refers in specific electrochemical reactor, passing through one under the action of extra electric field Chemical reaction, electrochemical process or the physical process of Series Design generate a large amount of free radical, and then utilize the strong oxygen of free radical The technical process that the property changed degrades to the pollutant in waste water, is one kind of high-level oxidation technology, as a kind of clean place Science and engineering skill, electrochemical techniques have the advantages that incomparable compared with other water technologies, are present to solve Treatment of Industrial Water Field uses the important method of negative issue caused by chemical agent.

The device for electrochemical water preparation used in currently available technology includes the door body of babinet and box opening, negative pole part Part and anode component are fixedly installed on babinet and door body respectively, by the folding of door body, realize cathode assembly and anode component Between interval in place, i.e. closing by door body, the anode plate or cathode plate cathode plate or anode plate being inserted into babinet Interval among, what door body was executed in moving process is rotary motion, in order to ensure that the pole plate being mounted in door body can be smooth Be inserted into babinet in, would have to do the size of plate it is small, or expand plate between interval on the one hand can cause in the case The waste in space, on the other hand, the increase of distance between plates and the reduction of board size can all weaken device for electrochemical water preparation Processing capacity can only increase the overall dimensions of babinet to ensure that processing capacity does not weaken, in terms of clearing up dirt, increase babinet Size be equal to increase treatment of dirt depth or processing height, keep processing dirt more difficult, increase box sizes Keep device occupied space big, do not adapt to different operating modes, significant portion enterprise due to be fitted without space cause project without Method promotes.In addition it is fixedly connected, is used by fasteners such as bolts between existing device for electrochemical water preparation door body and babinet It is easy to loosen between door body and babinet in the process and the dismounting of door body is inconvenient.

Utility model content

For the defect of above-mentioned device for electrochemical water preparation, the purpose of this utility model is to provide one kind having locking machine The device for electrochemical water preparation of structure, to solve at present, existing device for electrochemical water preparation plate dimensions are small, interval is big, processing energy Power is weak, and overall dimensions lead to greatly the technologies such as O＆M is difficult, adaptability for working condition is limited, can not reliably be fixed between door body and babinet Problem.

The technical issues of the utility model is solved can take following scheme to realize：A kind of electricity with locking mechanism Water Treatment device, including babinet, door body, cathode plate, anode plate, door body opener, locking mechanism, the babinet front Opening, cathode plate and/or anode plate used in water process are fixedly installed in the babinet, the anode plate used in water process and/ Or cathode plate is fixedly installed on the inner surface of the door body, the door body can seal the opening of the babinet, when the door When body is in sealing state, the cathode plate and anode plate interval setting and the door body pass through the lock with the babinet Determine mechanism to be removably fixedly connected；It is characterized in that：The door body opener includes linear actuator, rotation fortune Dynamic executing agency, the linear actuator includes movable part, guide rail, and the lower end of the movable part connects the door body Upper end, the movable part can be moved along the guide rail, and the rotary motion executing agency includes shaft, and the shaft can be with Own axes are rotationally connected with the outer surface of the box top wall for rotary shaft, and the shaft is mutually hung down with the box top wall Directly, one end of the guide rail is fixedly connected on the shaft；The locking mechanism includes runner, T-type pivot, the T-type pivot The edge of a wing end outer surface of the babinet, the web member end of the T-type pivot and institute are rotationally connected with using own axes as rotary shaft State runner threaded connection；When the door body is in the babinet is fixedly connected with state, the guide rail mutually hangs down with the door body Directly, the door body is stuck in the babinet and rotation between the runner of latched position；When the door body and the babinet When in disassembly status, the runner is rotated to releasing position, and the door body can be moved by the movable part along the guide rail The dynamic pole plate up in door body is fully drawn out from the babinet, and the door body can be rotated by the rotation of shaft.

As preferred：The locking mechanism further includes pivot mount, and the door body includes door main body and fastener, the pivot Axis fixing piece is fixedly connected on the outer surface of the babinet, and the fastener is located at the edge of the door main body, and the pivot The position of fixing piece and the fastener corresponds, and the edge of a wing end of the T-type pivot passes through the pivot mount and the case External surface is rotatablely connected, and when the door body is in the babinet is fixedly connected with state, the fastener is stuck in the case Body and between the runner of latched position.

As preferred：The quantity of the locking mechanism is even number, and the lock is symmetrically arranged in the both sides of the babinet Determine mechanism.

As preferred：The rotary motion executing agency further includes intermeshing worm screw and worm gear, matches with the worm screw The worm bearing used is closed, the shaft is coaxially disposed with the worm gear and is fixedly connected with the worm gear, the worm bearing It is fixedly connected on the outer surface of the box top wall.

As preferred：The linear actuator further includes lead screw, idler wheel, and the lead screw is parallel with the guide rail, The movable part is spirally connected with the lead screw, and the idler wheel is rotationally connected with the upper end of the movable part, and the movable part passes through institute It states rolling of the idler wheel on the guide rail and is moved along the guide rail.

As preferred：The door body opener further includes tightening mechanism, and the tightening mechanism includes tension rope, is connected to For adjusting the elastic adjusting screw of the tension rope on the tension rope, one end of tension rope and the upper end of the shaft are fixed Connection, the other end are fixedly connected with one end that the guide rail is not connect with the shaft.

As preferred：The linear actuator further include be fixedly connected with one end of the lead screw it is first-hand Wheel, the rotary motion executing agency further includes the second handwheel being fixedly connected with one end of the worm screw.

As preferred：The door body opener further includes fixing piece, and the fixing piece is fixedly connected on the babinet top The outer surface of wall, the worm bearing are fixedly connected on by bearing block on the fixing piece.

As preferred：And rotation connection coaxial by vertical axle center between the door body and the movable part.

As preferred：The movable part is connected with the upper end centre position of the door body.

After technical solution described in the utility model, following advantageous effect is brought：(1) the utility model is opening door Door body first moves in a straight line when body, and when the pole plate in door body is extracted out from babinet completely, door body rotates again, because This can installation dimension be larger in door body, is spaced folding of the smaller pole plate without influence door body, the increase energy of plate dimensions The treating capacity of the lifting device useful space, lifting device processing capacity, treatment effect；(2) in the case of same treating capacity, equipment is set Meter height reduces, size reduces, convenient and simple for operation during project maintenance, device snaking, and equipment is installed under equal conditions Space becomes smaller, and can adapt to special operation condition (installation space is smaller) workshop；(3) door body can be firmly fixed to by locking mechanism Babinet open-mouth ensures that door body does not fall off from babinet in the case where generating the operating modes such as vibration, and only needs rotating wheel i.e. lockable door Body releases locking between door body and babinet, door body it is convenient for disassembly and assembly, quick.

Description of the drawings

It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings Obtain other attached drawings.

Fig. 1 is the structural schematic diagram after there is the utility model the device for electrochemical water preparation door body of locking mechanism to open；

Fig. 2 is the front view after there is the utility model the device for electrochemical water preparation door body of locking mechanism to open；

Fig. 3 is the vertical view after there is the utility model the device for electrochemical water preparation door body of locking mechanism to open；

Fig. 4 is the front view after there is the utility model the device for electrochemical water preparation door body of locking mechanism to close；

Fig. 5 is the side view after there is the utility model the device for electrochemical water preparation door body of locking mechanism to close；

Fig. 6 is the vertical view after there is the utility model the device for electrochemical water preparation door body of locking mechanism to close；

Fig. 7 is the structural representation for the device for electrochemical water preparation door body opener that the utility model has locking mechanism Figure；

Fig. 8 is the side view for the device for electrochemical water preparation door body opener that the utility model has locking mechanism；

Fig. 9 is the vertical view for the device for electrochemical water preparation door body opener that the utility model has locking mechanism；

Main tender and label：

Babinet：1；Door body：2；Cathode plate：3；Anode plate：4；Opener：5；Locking mechanism：6；Water inlet：11；Water outlet Mouthful：12；Door main body：21；Fastener：22；Linear actuator：51；Rotary motion executing agency：52；Tightening mechanism：53； Fixing piece：54；Runner：61；T-type pivot：62；Pivot mount：63；Movable part：511；Guide rail： 512；Lead screw：513；Rolling Wheel：514；First handwheel：515；Shaft：521；Worm screw：522；Worm gear：523；Bearing： 524；Second handwheel：525；Bearing block： 526；Tension rope：531；Adjusting screw：532.

Specific implementation mode

To make the purpose of this utility model, technical solution and advantage clearly show, below in conjunction with attached drawing to this Utility model embodiment is described in further detail.

Embodiment one

Fig. 1 to Fig. 6 is the structural schematic diagram for the device for electrochemical water preparation that the present embodiment has locking mechanism, extremely such as Fig. 1 Shown in Fig. 6, device for electrochemical water preparation includes babinet 1, door body 2, cathode plate 3, anode plate 4, door body opener 5, locking machine Structure 6,1 front of the babinet is open, and water inlet 11 is arranged in the lower section of babinet 1, and water outlet 12, water is arranged in the top of babinet 1 Processing cathode plate 3 used is fixedly installed in the babinet 1, and the anode plate 4 used in water process is fixedly installed in the door body 2 Inner surface on, the door body 2 can seal the opening of the babinet 1, when the door body 2 is in sealing state, described the moon Pole plate 3 and the setting of the interval of the anode plate 4, the door body 2 are removably fixed by the locking mechanism 6 with the babinet 1 Connection.

It is as shown in Figure 7 to 9 door body opener 5 used by the present embodiment, door body opener 5 is transported including straight line Dynamic executing agency 51, rotary motion executing agency 52, tightening mechanism 53, fixing piece 54, the linear actuator 51 wrap Movable part 511, guide rail 512, lead screw 513, idler wheel 514, the first handwheel 515 are included, the lower end of the movable part 511 connects the door The upper end centre position of body 2, the idler wheel 514 are rotationally connected with the upper end of the movable part 511, the lead screw 513 with it is described Guide rail 512 is parallel, and lead screw 513 as shown in the figure is located inside guide rail 512, one end that guide rail 512 is not connect with the shaft 521 End plate is set, and one end that lead screw 513 is pierced by from end plate, and is pierced by from end plate is fixedly connected with first handwheel 515, the work Moving part 511 is spirally connected with the lead screw 513, and the movable part 511 is by the idler wheel 514 is in the rolling on the guide rail 512 It is moved along the guide rail 512；Rotating the first handwheel 515, then lead screw 513 rotates, and the rotation drive of lead screw 513 is spirally connected therewith Movable part 511 moved along the guide rail 512 by the idler wheel 514.

The rotary motion executing agency 52 includes shaft 521, intermeshing worm screw 522 and worm gear 523 and the snail Worm bearing 524 that bar 522 is used cooperatively, the second handwheel 525 being fixedly connected with one end of the worm screw 522, the shaft 521 is perpendicular with 1 roof of the babinet, and one end of the guide rail 512 is fixedly connected on the shaft 521, the shaft 521 with The worm gear 523 is coaxially disposed and is fixedly connected with the worm gear 523, and the worm bearing 524 is fixedly connected on the babinet On the outer surface of 1 roof；The then rotation in worm bearing 524 of the worm screw 522 of the second handwheel 525 is rotated, the worm screw 522 Rotation drives the worm gear 523 to be rotated by rotary shaft of own axes, and the rotation of worm gear 523 then drives shaft 521 with itself Axis rotates for rotary shaft.

The door body opener 5 further includes tightening mechanism 53, and the tightening mechanism 53 includes tension rope 531, is connected to For adjusting the elastic adjusting screw 532 of the tension rope 531 on the tension rope 531, one end of tension rope 531 with described turn The upper end of axis 521 is fixedly connected, and the other end is fixedly connected with one end that the guide rail 512 is not connect with the shaft 521；Such as figure Shown in 7, fastened there are two fixed block in 521 upper end of shaft, two fixed blocks are fixedly connected in shaft 521, tension rope 531 One end is fixedly connected on by fastener on two fixed blocks, and the other end is then fixedly connected on by fastener on guide rail end plate； Since door body has certain weight, it is used for a long time and bears one end that the guide rail of door body weight is not connect with shaft 521 and easily occur Lower bending deformation, influences the cooperation between door body and babinet, and setting tightening mechanism then facilitates the deformation of corrective rail, 531 energy of tension rope Enough one end not connect with shaft 521 to guide rail apply a power obliquely, and can be adjusted by adjusting screw 532 Tension rope 531 it is elastic, to bending into capable correction under the offset at the guide rail end.

The door body opener 5 further includes fixing piece 54, if the fixing piece 54 in Fig. 7,9 the present embodiment is one piece of fixation Plate, the fixing piece 54 are fixedly connected on the outer surface of 1 roof of the babinet, and the worm bearing 524 is solid by bearing block 526 Surely it is connected on the fixing piece 54；The setting of fixing piece 54 can make door body opener 5, and first integral installation exists when mounted On fixing piece 54, then by 54 integral installation of fixing piece on 1 roof of babinet, without by single zero of opener 5 Part is installed on one by one on the babinet with certain altitude, keeps the installation of opener 5 more convenient, quick.

When the door body 2 is in the babinet 1 is fixedly connected with state, the guide rail 512 hangs down with 2 phase of the door body Directly, when the door body 2 and the babinet 1 are in disassembly status, the door body 2 can be by the movable part 511 along described For the movement of guide rail 512 until the pole plate in door body 2 is fully drawn out from the babinet 1, the door body 2 can pass through shaft 521 It rotates and rotates.

The locking mechanism 6 includes runner 61, T-type pivot 62, pivot mount 63, the web member end of the T-type pivot 62 It is threadedly coupled with the runner 61, the door body 2 includes door main body 21 and fastener 22, and fastener 22 as shown in Figure 1, 2 is U-shaped card Part, the pivot mount 63 are fixedly connected on the outer surface of the babinet 1, and the fastener 22 is located at the side of the door main body 21 At edge, and the pivot mount 63 and the position of the fastener 22 correspond, and the edge of a wing end of the T-type pivot 62 passes through institute It states pivot mount 63 to be rotatablely connected by rotary shaft of own axes with box outer surface, when the door body 2 and the babinet 1 In when being fixedly connected with state, the fastener 22 is stuck in the babinet 1 and between the runner 61 of latched position, the lock The quantity for determining mechanism 6 is even number, the locking mechanism 6 is symmetrically arranged in the both sides of the babinet 1, in addition on the top of babinet Locking mechanism 6 there are two being also symmetrical arranged on wall；When locking door body using locking mechanism 6, door body is first made to be moved to babinet Open closed position turns to runner 61 and the matched position of U-shaped card part, at this time rotating wheel by T-type pivot 62 61 until door body 2 is pressed in the opening of babinet 1 by runner 61；When discharging the locking between door body 2 and babinet 1, with screw When opposite direction rotating wheel 61 until door body 2 is relaxed from babinet 1, runner 61 is turned to by T-type pivot 62 be detached from it is U-shaped The releasing position of fastener can be operated the further breakdown action that door body opener 5 executes door body at this time.

When opening the door body of the present embodiment, first passes through rotating wheel 61 and discharges door body 2 and being fixedly connected between babinet 1, Then the first handwheel 515 is rotated to drive movable part 511 to be moved towards far from the direction of babinet along guide rail 512, movable part 511 It is mobile that the door body 2 being attached thereto is driven also to be moved towards the direction far from babinet, wait for the pole plate that door body 2 is moved in door body 2 When the position being fully drawn out from babinet, the second handwheel 525 of rotation is to drive shaft 521 with own axes for rotation shaft rotation Dynamic, the rotation of shaft 521 drives the guide rail 512 of connection fixed thereto to be rotated for rotation center with shaft 521, guide rail 512 Rotation then drive the door body being indirectly connected with therewith by movable part 511 2 to rotate, i.e., door body first carries out in opening process Linear motion far from babinet, is rotated after pole plate disposed thereon after being fully drawn out in babinet again.

Embodiment two

The present embodiment and embodiment one differ only between the door body 2 and the movable part 511 by vertically to Axle center it is coaxial and be rotatablely connected, then door body 2 can take the axle center as axis progress rotation, and the rotation of door body 2 is in addition to that can pass through Rotary motion executing agency 52 realizes, can also transfer realization certainly by door body 2.

Above description is only a specific implementation of the present invention, but the scope of protection of the utility model is not limited to In this, any one skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation Or replace, it should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with the power Subject to the protection domain that profit requires.

Claims (10)

1. a kind of device for electrochemical water preparation with locking mechanism, including babinet (1), door body (2), cathode plate (3), anode plate (4), door body opener (5), locking mechanism (6), the babinet (1) front is open, cathode plate (3) used in water process and/ Or anode plate (4) is fixedly installed in the babinet (1), the fixed peace of the anode plate (4) and/or cathode plate (3) used in water process On inner surface loaded on the door body (2), the door body (2) can seal the opening of the babinet (1), when the door body (2) When in sealing state, the cathode plate (3) and the setting of the anode plate (4) interval and the door body (2) and the babinet (1) It is removably fixedly connected by the locking mechanism (6)；

It is characterized in that：The door body opener (5) includes linear actuator (51), rotary motion executing agency (52), the linear actuator (51) includes movable part (511), guide rail (512), the lower end of the movable part (511) The upper end of the door body (2) is connected, the movable part (511) can be mobile along the guide rail (512), and the rotary motion executes Mechanism (52) includes shaft (521), and the shaft (521) can be rotationally connected with the babinet by rotary shaft of own axes (1) outer surface of roof, and the shaft (521) and the babinet (1) roof are perpendicular, one end of the guide rail (512) is solid Surely it is connected to the shaft (521)；The locking mechanism (6) includes runner (61), T-type pivot (62), the T-type pivot (62) The edge of a wing end outer surface of the babinet (1), the web member of the T-type pivot (62) are rotationally connected with using own axes as rotary shaft End is threadedly coupled with the runner (61)；

When the door body (2) is in the babinet (1) is fixedly connected with state, the guide rail (512) and the door body (2) phase Vertically, the door body (2) is stuck in the babinet (1) and rotation between the runner (61) of latched position；When the door When body (2) is in disassembly status with the babinet (1), to releasing position, the door body (2) can lead to for runner (61) rotation It is mobile along the guide rail (512) until the pole plate in door body (2) is taken out completely from the babinet (1) to cross the movable part (511) Go out, the door body (2) can be rotated by the rotation of shaft (521).

2. the device for electrochemical water preparation according to claim 1 with locking mechanism, it is characterised in that：The locking machine Structure (6) further includes pivot mount (63), and the door body (2) includes door main body (21) and fastener (22), the pivot mount (63) it is fixedly connected on the outer surface of the babinet (1), the fastener (22) is located at the edge of the door main body (21), and institute It states pivot mount (63) and the position of the fastener (22) corresponds, the edge of a wing end of the T-type pivot (62) is described in Pivot mount (63) is rotatablely connected with the babinet (1) outer surface, when the door body (2) and the babinet (1) are in and fix When connection status, the fastener (22) is stuck in the babinet (1) and between the runner (61) of latched position.

3. the device for electrochemical water preparation according to claim 2 with locking mechanism, it is characterised in that：The locking machine The quantity of structure (6) is even number, and the locking mechanism (6) is symmetrically arranged in the both sides of the babinet (1).

4. the device for electrochemical water preparation according to claim 1 with locking mechanism, it is characterised in that：The rotation fortune Dynamic executing agency (52) further includes intermeshing worm screw (522) and worm gear (523), is used cooperatively with the worm screw (522) Worm bearing (524), the shaft (521) are coaxially disposed with the worm gear (523) and are fixedly connected with the worm gear (523), The worm bearing (524) is fixedly connected on the outer surface of the babinet (1) roof.

5. the device for electrochemical water preparation according to claim 4 with locking mechanism, it is characterised in that：The straight line fortune Dynamic executing agency (51) further includes lead screw (513), idler wheel (514), and the lead screw (513) is parallel with the guide rail (512), described Movable part (511) is spirally connected with the lead screw (513), and the idler wheel (514) is rotationally connected with the upper end of the movable part (511), The movable part (511) is mobile along the guide rail (512) by the idler wheel (514) is in the rolling on the guide rail (512).

6. the device for electrochemical water preparation according to claim 5 with locking mechanism, it is characterised in that：The door body is opened It further includes tightening mechanism (53) to open mechanism (5), and the tightening mechanism (53) includes tension rope (531), is connected to the tension rope (531) for adjusting the elastic adjusting screw (532) of the tension rope (531), one end and the shaft of tension rope (531) on (521) upper end is fixedly connected, and the other end is fixedly connected with one end that the guide rail (512) is not connect with the shaft (521).

7. the device for electrochemical water preparation according to claim 6 with locking mechanism, it is characterised in that：The straight line fortune Dynamic executing agency (51) further includes the first handwheel (515) being fixedly connected with one end of the lead screw (513), the rotary motion Executing agency (52) further includes the second handwheel (525) being fixedly connected with one end of the worm screw (522).

8. the device for electrochemical water preparation with locking mechanism according to any one of claim 4~7, feature exist In：The door body opener (5) further includes fixing piece (54), and the fixing piece (54) is fixedly connected on the babinet (1) top The outer surface of wall, the worm bearing (524) are fixedly connected on by bearing block (526) on the fixing piece (54).

9. the device for electrochemical water preparation with locking mechanism according to any one of claim 1~7, feature exist In：And rotation connection coaxial by vertical axle center between the door body (2) and the movable part (511).

10. the device for electrochemical water preparation according to claim 9 with locking mechanism, it is characterised in that：The activity Part (511) is connected with the upper end centre position of the door body (2).