CN110130795B

CN110130795B - Door

Info

Publication number: CN110130795B
Application number: CN201910284440.7A
Authority: CN
Inventors: 木克克
Original assignee: Wenzhou Mujia Furniture Co ltd
Current assignee: Wenzhou Mujia Furniture Co ltd
Priority date: 2019-04-10
Filing date: 2019-04-10
Publication date: 2021-02-02
Anticipated expiration: 2039-04-10
Also published as: CN110130795A

Abstract

The invention discloses a door, which adopts the technical scheme that the door comprises a door plate, a handle arranged on the door and a door frame arranged on the outer side of the door plate, wherein a connecting piece connected with the door frame is arranged on the side surface of the door plate, a back locking button used for back locking the door is arranged below the handle, a fireproof layer, a sound insulating layer and a steel plate are sequentially arranged in the door plate, a plurality of uniformly distributed round holes are arranged on the steel plate, a plurality of uniformly distributed convex blocks are arranged on the sound insulating layer and can be embedded into the round holes, the fireproof layer and the door plate are bonded by glue, a decorative plate is also arranged on the door plate, the decorative plate and the door plate are assembled and connected, a concave space for placing the decorative plate is arranged on the door plate, clamping grooves are arranged on the upper side and the lower side of the concave space, clamping strips matched with the clamping grooves are arranged on the upper side and, the other end is fixedly connected with the clamping strip, and the door has better fireproof and sound insulation effects.

Description

Door

Technical Field

The present invention relates to a door.

Background

The wooden door is an important product in the wood processing industry, is usually used as an indoor decorative door, is usually a pure wooden door or a composite wooden door in the current indoor decoration, has the advantages of convenient processing and attractive appearance, but also has certain defects, such as poor sound insulation effect, and can still be clearly heard after a user watches TV in a living room and closes the door in a bedroom. Therefore, the existing wooden door with excellent sound insulation effect is poor in flame retardant property, and fire can not be prevented from spreading when a fire disaster happens. In addition, the sound insulation effect is general, and the market demand cannot be met.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide the firm pet door which is convenient for a pet to go in and out and adopts a purely mechanical mode without power supply.

In order to achieve the purpose, the invention provides the following technical scheme: a door comprises a door plate, a handle arranged on the door and a door frame arranged on the outer side of the door plate, wherein a connecting piece connected with the door frame is arranged on the side surface of the door plate, a back locking button used for back locking the door is arranged below the handle, a fireproof layer, a sound insulating layer and a steel plate are sequentially arranged in the door plate, a plurality of uniformly distributed round holes are arranged on the steel plate, a plurality of uniformly distributed protruding blocks are arranged on the sound insulating layer and can be embedded into the round holes, glue is adopted for bonding between the fireproof layer and the door plate, a decorative plate is also arranged on the door plate and is in assembly connection with the door plate, a concave space for placing the decorative plate is arranged on the door plate, clamping grooves are arranged on the upper side and the lower side of the concave space, clamping strips matched with the clamping grooves are arranged on the upper side and the lower side of the decorative plate, the clamping, spring one end and decorative board inside wall fixed connection, the other end and card strip fixed connection.

Further, a pet channel for a pet to come in and go out is arranged on the door plate, and a telescopic device for opening or closing the pet channel is arranged on the pet channel;

the telescopic device comprises a telescopic door and at least two fixing rods, the telescopic door is used for filling the pet channel, the two fixing rods are arranged in the telescopic door and can slide in the telescopic door, a torsion spring is arranged between the two fixing rods, two ends of the torsion spring are respectively fixedly connected with the fixing rods, a rotating rod is arranged in the middle of the torsion spring, and when the fixing rods do not have external force, the fixing rods are abutted to the door panel.

Furthermore, the anti-lock button comprises a knob for a human hand to rotate and a rotating rod fixedly connected with the knob, a fixing component for preventing a child from rotating is arranged on the anti-lock button, and a groove for accommodating the fixing component is arranged on the door panel;

the fixed subassembly includes a plurality of metal elastic sheets, the supporting round platform of connecting a plurality of metal elastic sheets and fixes the fixture block on the metal elastic sheet, and a plurality of metal elastic sheets use the centre of a circle of supporting round platform to be the circumference array distribution as the center, the fixture block is fixed in the inboard of metal elastic sheet, be provided with the depressed groove that supplies the fixture block card to go into on the dwang, go into the depressed groove when the fixture block card, the dwang can not be rotated.

Further, be provided with the caulking groove that supplies the flexible door to pack up on the door plant, the caulking groove sets up along the length direction of flexible door, caulking groove and pet passageway communicate each other, flexible door both sides are provided with the removal strip that is used for assisting the flexible door to slide, the removal strip extends the setting along the length direction of flexible door, the door plant inside wall is provided with the shifting chute that slides with the shifting chute cooperation, the shifting chute extends the setting along the length direction of removing the strip, still be provided with the roll wheel that supplementary removal strip slided on the removal strip, be provided with on the door plant and supply the rolling wheel rolling raceway, shifting chute and raceway communicate each other, shifting chute and raceway form T style of calligraphy structure.

Furthermore, the rolling wheel is arranged above the telescopic door, and the fixed rod is arranged at the bottom of the telescopic door.

Further, all be provided with a plurality of evenly distributed's card hole on the raceway of both sides, the card hole supplies the dead lever to penetrate and fixes the flexible door, the external diameter of dead lever is less than the internal diameter in card hole, and when the dead lever card was gone into the card downthehole, flexible door stop removed, and the card hole that both sides are relative wantonly is in same level.

Furthermore, the one end that the dead lever kept away from the torsional spring is provided with two at least holding rods, holding rod and dead lever fixed connection, the holding rod uses the axle center of dead lever to extend to the outside as the center.

The invention has the beneficial effects that:

1. the door plate is provided with a handle, when a user rotates the handle, the door is opened, the connecting piece is arranged on the side face of the door plate and is used for connecting the door plate with a door frame, the door plate is formed by pouring a fireproof layer, a steel plate of the sound insulation layer and a wood plate at one time, a fireproof panel is arranged in the fireproof layer and can play a fireproof role, the sound insulation plate is arranged in the sound insulation layer, a plurality of protruding blocks which are uniformly distributed are arranged on the sound insulation plate and penetrate through round holes in the steel plate, the wall body which is arranged in the way can play a sound insulation and fireproof role and can ensure that the wood door has certain rigidity, the door plate can be attractive when the decorative plate is arranged on the door plate, but the door plate and the decorative plate are mostly adhered by adopting adhesive in the prior art, if the adhesive with poor quality is bought, the decorative plate is easy to drop, in, set up the sunk space that supplies the decorative board embedding on the door plant, when needs imbed the decorative board to the sunk space in, earlier go into the draw-in groove with the card strip card of decorative board downside (the groove depth of draw-in groove is in the groove depth of card strip), because set up the spring on the card strip of decorative board downside, when card strip card goes into in the draw-in groove, card strip part is taken in to the decorative board, (the spring is compressed this moment) again with the card strip card of decorative board up end go into with it in the corresponding draw-in groove, because set up the spring in the card strip of terminal surface under the decorative board, spring release elastic potential energy, the card strip pops out from the decorative board, thereby fix the decorative board in.

2. Along with economic conditions's improvement, the pet is kept in by many residents at home, after master goes out work daytime, can lock the door mostly, many owners all can set up the place that supplies the pet stool and urine at the bathroom of family, be provided with the pet passageway that supplies the pet to come in and go out on the door plant, even owner is not at home, the pet still can go the bathroom through the pet passageway, before owner goes out, can rotate the dead lever, the dead lever drives the torsional spring and rotates, the torsional spring draws together the dead lever from both sides to the centre (dead lever and door plant no longer contradict this moment, flexible door can be reciprocated), owner can be according to the body size of pet and adjust the pet passageway to the space that self pet can pass through.

3. Set up the caulking groove that supplies the flexible door to pack up in the door plant, when the flexible door is by the rebound, in the gradual immigration caulking groove of flexible door, the both sides of flexible door have set up the shifting chute and the removal strip that can assist the flexible door, setting through removal strip and shifting chute, can make the better removal of flexible door, and can prevent that the flexible door from swaing about the in-process that removes, shifting chute and removal strip are made by metal material, frictional force between the two is great, consequently, the raceway has been set up on the door plant, the wheel that rolls has been set up on the removal strip, the wheel that rolls can move on the raceway, through the setting of wheel and raceway, can effectual reduction flexible door at the frictional force of the in-process that slides.

4. The dead lever sets up in the bottom of flexible door, and the user can the effectual height that the flexible door removed of control.

5. The raceway both sides have set up the card hole, and when the dead lever inserted the card downthehole, the dead lever was fixed, and flexible door is fixed thereupon, and the card hole is provided with a plurality ofly, and each card hole represents different gears, and the user can insert the dead lever suitable gear according to the body shape of own pet can, through the setting in a plurality of card holes, can effectually fix the dead lever to suitable position.

6. When the rotating rod needs to be rotated, a user holds the holding rod by fingers and rotates the holding rod, so that the rotating rod can be easily rotated, and the rotating rod can be rotated more easily through the arrangement of the holding rod.

Drawings

FIG. 1 is a schematic perspective view of a wood door;

FIG. 2 is a front view of a wood door;

FIG. 3 is a schematic view of a connection structure of a door panel and a decorative panel;

FIG. 4 is a cross-sectional view of the trim panel;

FIG. 5 is a cross-sectional view of a wood board;

FIG. 6 is a schematic view showing a connection structure of the rotary bar and the grip bar;

FIG. 7 is a detailed structural view of the fixing assembly;

fig. 8 is a schematic view of the connection structure of the rotating lever and the knob.

Reference numerals: 1. a door panel; 11. a fire barrier layer; 12. a sound insulating layer; 121. a bump; 13. a steel plate; 14. a circular hole; 15. a decorative plate; 16. a card slot; 17. clamping the strip; 18. a spring; 2. a handle; 21. a door frame; 22. a connecting member; 3. a pet pathway; 4. a back locking button; 41. a knob; 42. rotating the rod; 43. a fixing assembly; 431. a metal elastic sheet; 432. a supporting circular table; 433. a clamping block; 434. a recessed groove; 44. a groove; 5. a telescoping device; 51. a retractable door; 52. fixing the rod; 53. a torsion spring; 54. a rotating rod; 6. caulking grooves; 61. a moving bar; 62. a moving groove; 63. a rolling wheel; 64. a raceway; 7. a clamping hole; 8. a holding rod.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Referring to fig. 1 to 8, the door of the embodiment includes a door panel 1, a handle 2 disposed on the door, and a door frame 21 disposed outside the door panel 1, a connecting member 22 disposed on a side surface of the door panel 1 and connected to the door frame 21, a back-locking button 4 disposed below the handle 2 and used for back-locking the door, a fire-proof layer 11, a sound-proof layer 12, and a steel plate 13 sequentially disposed in the door panel 1, a plurality of uniformly distributed round holes 14 disposed on the steel plate 13, a plurality of uniformly distributed protruding blocks 121 disposed on the sound-proof layer 12, the protruding blocks 121 capable of being embedded into the round holes 14, the fire-proof layer 11 and the door panel 1 bonded by glue, a decorative plate 15 disposed on the door panel 1, the decorative plate 15 and the door panel 1 assembled and connected to each other, a recessed space for placing the decorative plate 15 is disposed on the door panel 1, and a clamping groove 16 is disposed, the upper and lower both sides of decorative board 15 are provided with draw-in groove 16 complex card strip 17, card strip 17 and decorative board 15 fixed connection, be provided with spring 18 in the decorative board 15, spring 18 one end and 15 inside wall fixed connection of decorative board, the other end and card strip 17 fixed connection.

The door plate 1 is provided with the handle 2, when a user rotates the handle 2, the door is opened, the connecting piece 22 is arranged on the side face of the door plate 1, the connecting piece 22 is used for connecting the door plate 1 with the door frame 21, the door plate 1 is formed by pouring a fire-proof layer 11, a sound-proof layer 12, a steel plate 13 and a wood plate at one time, a fire-proof panel is arranged in the fire-proof layer 11 and can play a role of fire prevention, the sound-proof plate is arranged in the sound-proof layer 12, the sound-proof plate is provided with a plurality of lugs 121 which are uniformly distributed, the lugs 121 penetrate through round holes 14 in the steel plate 13, the wall body arranged in the way can ensure that the wood door has certain rigidity while playing a role of sound insulation and fire prevention, the decorative plate 15 arranged on the door plate 1 can enable the door plate 1 to look beautiful, but if the door plate 1 and the decorative plate 15 are mostly adhered by adopting viscose, this embodiment sets decorative board 15 and door plant 1 to be assembled between/be connected, set up the sunk space that supplies decorative board 15 to imbed on door plant 1, when needs imbed decorative board 15 to the sunk space in, earlier block 17 card of decorative board 15 downside go into draw-in groove 16 in (the groove depth of draw-in groove 16 is lighter than the groove depth of block 17), because set up spring 18 on the block 17 of decorative board 15 downside, when block 17 card goes into draw-in groove 16 in, block 17 part income is to decorative board 15 in, (spring 18 is compressed this moment) again with the block 17 card of decorative board 15 up end go into with it in the corresponding draw-in groove 16, because set up spring 18 in the block 17 of decorative board 15 lower terminal surface, spring 18 releases elastic potential energy, block 17 pops out from decorative board 15 in, thereby fix decorative board 15 in the sunk space.

As a specific embodiment of improvement, a pet passage 3 for a pet to come in and go out is arranged on the door panel 1, and a telescopic device 5 for opening or closing the pet passage 3 is arranged on the pet passage 3; the telescoping device 5 includes flexible door 51 and two at least dead levers 52, flexible door 51 is used for filling pet passageway 3, and two dead levers 52 set up in flexible door 51 and can slide in flexible door 51, are provided with torsional spring 53 between two dead levers 52, the torsional spring 53 both ends respectively with dead lever 52 fixed connection, be provided with bull stick 54 in the middle of the torsional spring 53, when dead lever 52 does not have exogenic action, dead lever 52 is inconsistent with door plant 1.

Along with economic conditions's improvement, the pet is kept in by many residents at home, after the owner goes out work daytime, can lock the door mostly, many owners all can set up the place that supplies the pet stool and urine at the bathroom in family, be provided with the pet passageway 3 that supplies the pet to come in and go out on the door plant 1, even owner is not at home, the pet still can go the bathroom through pet passageway 3, before owner goes out, can rotate dead lever 52, dead lever 52 drives torsional spring 53 and rotates, torsional spring 53 draws together dead lever 52 from both sides to the centre (dead lever 52 and door plant 1 do not contradict again this moment, flexible door 51 can be reciprocated), owner can adjust pet passageway 3 to the space that self-service pet can pass through according to the body size of pet.

The anti-lock button 4 comprises a knob 41 for a human hand to rotate and a rotating rod 42 fixedly connected with the knob 41, a fixing component 43 for preventing a child from rotating is arranged on the anti-lock button 4, and a groove 44 for accommodating the fixing component 43 is arranged on the door panel 1; the fixing assembly 43 comprises a plurality of metal elastic sheets 431, a supporting circular table 432 connected with the plurality of metal elastic sheets 431, and a fixture block 433 fixed on the metal elastic sheets 431, wherein the plurality of metal elastic sheets 431 are distributed in a circumferential array by taking the circle center of the supporting circular table 432 as the center, the fixture block 433 is fixed on the inner side of the metal elastic sheets 431, a recessed groove 434 for clamping the fixture block 433 is formed in the rotating rod 42, and when the fixture block 433 is clamped into the recessed groove 434, the rotating rod 42 cannot be rotated.

The door plate 1 is provided with the handle 2, when the handle 2 rotates, the door plate 1 is opened, when the back locking button 4 rotates, the door is locked, even if the handle 2 rotates, the door cannot be opened, the connecting piece 22 is arranged on the side surface of the door plate 1 and is used for fixing the door plate 1 and a wall body, the back locking button 4 comprises a knob 41 for a hand to rotate and a rotating rod 42 fixedly connected with the knob 41, when a user needs to back lock the door, the knob 41 only needs to be rotated by the hand, because the rotating rod 42 is fixedly connected with the knob 41, the rotation of the knob 41 can drive the rotation of the rotating rod 42 (one end of the rotating rod 42, which is opposite to the knob 41, is provided with a bolt, the bolt can be inserted into the door frame 21 by the rotation of the rotating rod 42), the door plate 1 is provided with a concave groove 434 for accommodating the fixing component 43, and through the setting of the back locking button 4, through sunken groove 434 and setting, can effectually hold fixed subassembly 43, fixed subassembly 43 has included metal elastic sheet 431, support round platform 432 that connects metal elastic sheet 431 and the fixture block 433 of fixing on metal elastic sheet 431, be provided with draw-in groove 16 on dwang 42, fixture block 433 card is on draw-in groove 16, dwang 42 is spacing can not rotate, break away from out from in draw-in groove 16 when fixture block 433, then dwang 42 can be rotated, so just be different from prior art, can prevent that the child from when playing at home, lock oneself at home by mistake.

As an improved specific embodiment, the door panel 1 is provided with a caulking groove 6 for the retractable door 51 to be retracted, the caulking groove 6 is arranged along the length direction of the retractable door 51, the caulking groove 6 and the pet passage 3 are communicated with each other, two sides of the retractable door 51 are provided with a moving strip 61 for assisting the retractable door 51 to slide, the moving strip 61 extends along the length direction of the retractable door 51, the inner side wall of the door panel 1 is provided with a moving groove 62 matched with the moving strip 61 to slide, the moving groove 62 extends along the length direction of the moving strip 61, the moving strip 61 is further provided with a rolling wheel 63 for assisting the moving strip 61 to slide, the door panel 1 is provided with a roller path 64 for the rolling wheel 63 to roll, the moving groove 62 and the roller path 64 are communicated with each other, and the moving groove 62 and the roller path 64 form a T-shaped structure.

Set up the caulking groove 6 that supplies flexible door 51 to pack up in the door plant 1, when flexible door 51 was by the rebound, flexible door 51 progressively immigrated in the caulking groove 6, flexible door 51's both sides have set up movable groove 62 and the moving strip 61 that can assist flexible door 51, through the setting of moving strip 61 and moving groove 62, can make the better removal of flexible door 51, and can prevent flexible door 51 at the in-process of removing left and right rocking, moving groove 62 and moving strip 61 are made by metal material, frictional force between the two is great, consequently, set up raceway 64 on door plant 1, set up rolling wheel 63 on moving strip 61, rolling wheel 63 can move on raceway 64, through the setting of rolling wheel 63 and raceway 64, can effectual reduction flexible door 51 at the frictional force of the in-process that slides.

As a modified specific embodiment, the rolling wheel 63 is disposed above the retractable door 51, and the fixing rod 52 is disposed at the bottom of the retractable door 51.

The fixing rod 52 is disposed at the bottom of the retractable door 51, so that a user can effectively control the moving height of the retractable door 51.

As an improved specific embodiment, a plurality of clamping holes 7 are uniformly distributed on the raceways 64 on the two sides, the clamping holes 7 allow the fixing rod 52 to penetrate to fix the retractable door 51, the outer diameter of the fixing rod 52 is smaller than the inner diameter of the clamping holes 7, when the fixing rod 52 is clamped into the clamping holes 7, the retractable door 51 stops moving, and the clamping holes 7 on any two sides are at the same horizontal height.

The clamping holes 7 are formed in the two sides of the roller path 64, when the fixing rod 52 is inserted into the clamping holes 7, the fixing rod 52 is fixed, the telescopic door 51 is fixed accordingly, the clamping holes 7 are multiple, each clamping hole 7 represents different gears, a user can insert the fixing rod 52 into a proper gear according to the body shape of a pet, and the fixing rod 52 can be effectively fixed to a proper position through the arrangement of the clamping holes 7.

As a modified specific embodiment, at least two holding rods 8 are arranged at one end of the fixing rod 52 away from the torsion spring 53, the holding rods 8 are fixedly connected with the fixing rod 52, and the holding rods 8 extend outwards with the axis of the fixing rod 52 as the center.

When the rotating rod 54 needs to be rotated, a user holds the holding rod 8 with fingers and rotates the holding rod 8, so that the rotating rod 54 can be easily rotated, and the rotating rod 54 can be rotated more easily through the arrangement of the holding rod 8.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. The utility model provides a door, includes door plant (1), sets up handle (2) on door and sets up in door frame (21) in door plant (1) outside, door plant (1) side is provided with connecting piece (22) of being connected with door frame (21), handle (2) below is provided with and is used for locking the anti-lock button (4) of door back-locking, its characterized in that: the door plate is characterized in that a fireproof layer (11), a sound insulation layer (12) and a steel plate (13) are sequentially arranged in the door plate (1), a plurality of uniformly distributed round holes (14) are formed in the steel plate (13), a plurality of uniformly distributed protruding blocks (121) are arranged on the sound insulation layer (12), the protruding blocks (121) can be embedded into the round holes (14), the fireproof layer (11) and the door plate (1) are bonded by glue, a decorative plate (15) is further arranged on the door plate (1), the decorative plate (15) and the door plate (1) are assembled and connected, a concave space for placing the decorative plate (15) is formed in the door plate (1), clamping grooves (16) are formed in the upper side and the lower side of the concave space, clamping strips (17) matched with the clamping grooves (16) are formed in the upper side and the lower side of the decorative plate (15), and the clamping strips (17) are fixedly connected with the, a spring (18) is arranged in the decorative plate (15), one end of the spring (18) is fixedly connected with the inner side wall of the decorative plate (15), the other end of the spring (18) is fixedly connected with the clamping strip (17), a pet channel (3) for a pet to come in and go out is arranged on the door plate (1), and a telescopic device (5) for opening or closing the pet channel (3) is arranged on the pet channel (3); the telescopic device (5) comprises a telescopic door (51) and at least two fixed rods (52), the telescopic door (51) is used for filling the pet passage (3), the two fixing rods (52) are arranged in the telescopic door (51) and can slide in the telescopic door (51), a torsion spring (53) is arranged between the two fixing rods (52), two ends of the torsion spring (53) are respectively and fixedly connected with the fixed rod (52), a rotating rod (54) is arranged in the middle of the torsion spring (53), when the fixing rod (52) has no external force, the fixing rod (52) is abutted against the door panel (1), the anti-locking button (4) comprises a knob (41) for a human hand to rotate and a rotating rod (42) fixedly connected with the knob (41), the back locking button (4) is provided with a fixing component (43) for preventing a child from rotating, the door panel (1) is provided with a groove (44) for accommodating a fixing component (43); the fixed assembly (43) comprises a plurality of metal elastic sheets (431), a supporting circular truncated cone (432) connected with the plurality of metal elastic sheets (431) and a clamping block (433) fixed on the metal elastic sheets (431), wherein the plurality of metal elastic sheets (431) are distributed in a circumferential array mode by taking the circle center of the supporting circular truncated cone (432) as the center, the clamping block (433) is fixed on the inner side of the metal elastic sheets (431), a concave groove (434) for clamping the clamping block (433) is formed in the rotating rod (42), the rotating rod (42) cannot be rotated when the clamping block (433) is clamped into the concave groove (434), an embedded groove (6) for retracting the retractable door (51) is formed in the door panel (1), the embedded groove (6) is formed in the length direction of the retractable door (51), the embedded groove (6) is communicated with the pet channel (3), and moving strips (61) for assisting the retractable door (51) to slide are arranged on two sides of the retractable door (51), remove strip (61) and extend the setting along the length direction of flexible door (51), door plant (1) inside wall is provided with and removes moving groove (62) that strip (61) cooperation was slided, moving groove (62) extend the setting along the length direction of removing strip (61), still be provided with roller (63) that supplementary moving strip (61) slided on removing strip (61), be provided with on door plant (1) and supply rolling wheel (63) rolling raceway (64), moving groove (62) and raceway (64) communicate each other, moving groove (62) and raceway (64) form T style of calligraphy structure.

2. The door of claim 1, wherein: the rolling wheel (63) is arranged above the telescopic door (51), and the fixing rod (52) is arranged at the bottom of the telescopic door (51).

3. The door of claim 2, wherein: all be provided with a plurality of evenly distributed's card hole (7) on raceway (64) of both sides, card hole (7) supply dead lever (52) to penetrate and fix flexible door (51), the external diameter of dead lever (52) is less than the internal diameter in card hole (7), when dead lever (52) card goes into in card hole (7), flexible door (51) stop movement, both sides arbitrary relative card hole (7) are in same level.

4. The door of claim 3, wherein: one end of the fixing rod (52) far away from the torsion spring (53) is provided with at least two holding rods (8), the holding rods (8) are fixedly connected with the fixing rod (52), and the holding rods (8) extend outwards by taking the axis of the fixing rod (52) as the center.