CN210888614U - No-track folding door - Google Patents

No-track folding door Download PDF

Info

Publication number
CN210888614U
CN210888614U CN201921012309.7U CN201921012309U CN210888614U CN 210888614 U CN210888614 U CN 210888614U CN 201921012309 U CN201921012309 U CN 201921012309U CN 210888614 U CN210888614 U CN 210888614U
Authority
CN
China
Prior art keywords
door leaf
push rod
main door
rotating shaft
rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201921012309.7U
Other languages
Chinese (zh)
Inventor
宋学贤
马伟中
周成
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Huajian Engineering Construction Consulting Co ltd
Original Assignee
Shanghai Xian Dai Architecture Engineering & Consulting Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Xian Dai Architecture Engineering & Consulting Co ltd filed Critical Shanghai Xian Dai Architecture Engineering & Consulting Co ltd
Priority to CN201921012309.7U priority Critical patent/CN210888614U/en
Application granted granted Critical
Publication of CN210888614U publication Critical patent/CN210888614U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Power-Operated Mechanisms For Wings (AREA)

Abstract

A trackless folding door comprises a main door leaf, an auxiliary door leaf, a main door leaf driving mechanism and an auxiliary door leaf driving mechanism, wherein the auxiliary door leaf driving mechanism comprises a fourth push rod and a fifth push rod, the first rotating shaft is fixed on the main door leaf, the second rotating shaft is fixed on the auxiliary door leaf, the main door leaf and the fourth push rod are rotatably connected with the fixing portion, a first rod body and a second rod body fixedly connected with the first rod body are formed on the fifth push rod, the first rod body and the second rod body have different extending directions, one end, away from the fixing portion, of the fourth rod body is rotatably connected with the first rod body, the first rod body is sleeved on the first rotating shaft, one end, away from the first rod body, of the second rod body is sleeved on the second rotating shaft, the main door leaf gear is fixedly arranged on the first rotating shaft, the auxiliary door leaf gear is fixedly arranged on the second rotating shaft, and the main door leaf gear is meshed with the auxiliary door leaf gear. The folding door without the track can be folded without the track, and the control mechanism has no dead angle, simple control method and long service life.

Description

No-track folding door
Technical Field
The utility model belongs to the technical field of the railless folding door technique and specifically relates to a railless folding door.
Background
Because the trackless folding door has the advantages of convenient use, space saving, elegant appearance and the like, the trackless folding door is widely applied to places such as workshops, markets, family decorations and the like. The common movable unit of the trackless folding door comprises a driving door leaf, a driven door leaf, a track, a linkage mechanism and a driving part, wherein the driving door leaf of the electric trackless folding door moves through an electric cylinder driving connecting rod, and the door leaf is opened and closed under the guide effect of the track.
In the prior art, guide wheels are prone to wear in the track; the pole inefficacy can lead to drive unit to take place to destroy, and the pole can not long-time continuous operation moreover, and structural reliability is low, and the product is not durable, is equipped with the track moreover from top to bottom and causes with high costs.
SUMMERY OF THE UTILITY MODEL
The utility model provides a no track folding door, this no track folding door can not need the track to realize folding, and control mechanism does not have the dead angle, and control method is simple, longe-lived.
The utility model provides a trackless folding door, which comprises a main door leaf, an auxiliary door leaf, a main door leaf driving mechanism and an auxiliary door leaf driving mechanism, wherein the main door leaf is connected with the auxiliary door leaf, the main door leaf driving mechanism drives the main door leaf to rotate, the auxiliary door leaf driving mechanism comprises a fourth push rod, a fifth push rod, a first rotating shaft, a second rotating shaft, a main door leaf gear and an auxiliary door leaf gear, the first rotating shaft is fixed on the main door leaf, the second rotating shaft is fixed on the auxiliary door leaf, the main door leaf and the fourth push rod are connected with a fixed part and can rotate relative to the fixed part, a first rod body and a second rod body fixedly connected with the first rod body are formed on the fifth push rod, the first rod body and the second rod body have different extending directions, one end of the fourth push rod, which is far away from the fixed part, is connected with the first rod body, the second rod body is sleeved on the second rotating shaft and can rotate relative to the second rotating shaft, the rotating planes of the fourth push rod, the fifth push rod and the main door leaf are parallel to each other, the main door leaf gear is fixedly arranged on the first rotating shaft, the auxiliary door leaf gear is fixedly arranged on the second rotating shaft, and the main door leaf gear is meshed with the auxiliary door leaf gear.
Furthermore, the extending direction of the fourth push rod is parallel to the main door leaf, and the distance from the connection point of the fourth push rod and the fixing portion to the connection point of the fourth push rod and the first rod body is equal to the distance from the connection point of the main door leaf and the fixing portion to the connection point of the first rod body and the first rotating shaft.
Further, the fourth push rod is disposed on one side of the opening direction of the main door leaf.
Furthermore, the upper part and the lower part of the trackless folding door are respectively provided with the auxiliary door leaf driving mechanism.
Further, the fourth push rod, the fifth push rod, the first rotating shaft, the second rotating shaft, the main door leaf gear and the auxiliary door leaf gear are all arranged outside the end portions of the main door leaf and the auxiliary door leaf in the height direction.
Further, the main door leaf driving mechanism comprises a driving motor, a first push rod, a second push rod and a third push rod, the first push rod is connected with the driving motor and can rotate relative to the driving motor, a rotating shaft connected with the first push rod and the driving motor is arranged to deviate from the rotating shaft of the driving motor, one end of the first push rod, far away from the driving motor, is connected with the second push rod and can rotate relative to the second push rod, one end of the second push rod is connected with a fixing part and can rotate relative to the fixing part, one end of the second push rod, far away from the fixing part, is connected with the third push rod and can rotate relative to the third push rod, one end of the third push rod, far away from the second push rod, is connected with the main door leaf and can rotate relative to the main door leaf, and the main door leaf is connected with the fixing part, and can rotate relative to the fixed part, the rotation planes of the first push rod, the second push rod and the third push rod are parallel to each other.
Furthermore, the trackless folding door further comprises a door post, the second push rod, the fourth push rod and the main door leaf are connected to the outer circumferential surface of the door post, and a connection point of the second push rod and the door post is arranged between a connection point of the first push rod and the driving motor and a connection point of the main door leaf and the door post.
Furthermore, the main door leaf driving mechanism is arranged in the middle of the main door leaf in the height direction and is positioned on one side of the opening direction of the main door leaf.
Furthermore, the trackless folding door further comprises a third base, and the fourth push rod and the main door leaf are connected with the door post through the third base.
To sum up, the utility model discloses a setting of a plurality of link mechanism can realize extension and the shrink of vice door leaf under the condition that does not need track and guide pulley, and the motion of main door leaf and vice door leaf does not all have the dead angle, simple structure, and the operation is stable, longe-lived.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic top view of an opened state of a folding door without a track according to an embodiment of the present invention.
Fig. 2 is a schematic top view of the closed state of the trackless folding door according to an embodiment of the present invention.
Fig. 3 is a schematic side view of the opening state of the folding door without track according to the embodiment of the present invention.
Fig. 4 is a schematic side view of the closed state of the trackless folding door provided by the embodiment of the present invention.
Fig. 5 is a schematic front view of the closed state of the trackless folding door according to the embodiment of the present invention.
Fig. 6 is a schematic structural diagram at a in fig. 1.
Fig. 7 is a schematic view of the structure at C in fig. 2.
Fig. 8 is a schematic structural diagram at B in fig. 1.
Fig. 9 is a schematic view of the structure at D in fig. 2.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose of the present invention, the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments.
The utility model provides a no track folding door, this no track folding door can not need the track to realize folding, and control mechanism does not have the dead angle, and control method is simple, longe-lived.
The utility model provides a trackless folding door includes main door leaf 11, vice door leaf 12, main door leaf actuating mechanism 20 and vice door leaf actuating mechanism 30, and main door leaf 11 links to each other with vice door leaf 12, and main door leaf actuating mechanism 20 drives main door leaf 11 and rotates around self one end that is close to the fixed part to realize the switching of main door leaf 11, vice door leaf actuating mechanism 30 drives vice door leaf 12 and moves, and can make vice door leaf 12 fold or expand for main door leaf 11.
As shown in fig. 1, 2, 6 and 7, in the present embodiment, the main door driving mechanism 20 includes a driving motor 21, a first push rod 22, a second push rod 23 and a third push rod 24.
A rotary table 211 (see fig. 3) is disposed on the driving motor 21, one end of the first push rod 22 is connected to the rotary table 211 and can rotate in a plane in the extending direction of the rotary table 211, that is, a plane perpendicular to the rotary shaft of the driving motor 21, and the rotary shaft of the first push rod 22 on the rotary table 211 of the driving motor 21 is disposed offset from the rotary shaft of the driving motor 21. The other end of the first push rod 22, which is far away from the rotary table 211, is connected with the second push rod 23, specifically to the middle part of the second push rod 23, and is rotatable with respect to the second push rod 23, one end of the second push rod 23 is connected to a fixed portion, preferably a doorpost 40 (for convenience of illustration of various components on the trackless folding door, in fig. 1 to 7, the doorpost 40 is shown by a dotted line) through the first base 251, and can rotate relative to the fixed part, one end of the third push rod 24 is connected with one end of the second push rod 23 far away from the fixed part, and can rotate relative to the second push rod 23, one end of the third push rod 24 far away from the second push rod 23 is connected with the main door leaf 11 through the second base 252, and can rotate relative to the main door 11, the main door 11 is connected to the fixing portion through the third base 253, and can rotate relative to the fixed part, and the rotating planes of the first push rod 22, the second push rod 23 and the third push rod 24 are parallel to each other.
In the embodiment, the driving motor 21, the first push rod 22 and the second push rod 23 together form a crank-rocker mechanism, and when the driving motor 21 rotates, the first push rod 22 drives the second push rod 23 to make the second push rod 23 swing around the connection point on the fixing portion. On the other hand, since the second push rod 23, the second push rod 23 and the main door 11 are connected in sequence, a connection point (see point a in fig. 1) of the second push rod 23 and the fixed portion, a connection point (see point b in fig. 1) of the second push rod 23 and the third push rod 24, a connection point (see point c in fig. 1) of the third push rod 24 and the main door 11, and a connection point (see point d in fig. 1) of the main door 11 and the fixed portion may enclose a four-bar linkage, when the first push rod 22 pushes the second push rod 23 to swing around the connection point on the fixed portion, the main door 11 may rotate around its own axis through the second push rod 23 and the third push rod 24, so as to open and close the main door 11.
In the present embodiment, the main door leaf driving mechanism 20 is disposed in the middle of the main door leaf 11 in the height direction and is located on one side of the opening direction of the main door leaf 11.
Further, in order to facilitate the opening and closing of the main door 11, the second push rod 23 and the main door 11 are both connected to the outer circumferential surface of the door post 40, and a connection point of the second push rod 23 and the door post 40 is disposed between a connection point of the first push rod 22 and the driving motor 21 and a connection point of the main door 11 and the door post 40.
In this embodiment, a main door hinge 11 is disposed on the third base 253, and one end of the main door hinge 11 is sleeved on the main door hinge 11, so that the main door hinge 11 can rotate. In order to ensure smooth rotation of the main door 11, two third bases 253 may be provided, and the two third bases 253 are respectively provided at the upper portion and the lower portion of the main door 11.
It should be understood that, in another embodiment of the present invention, the main door 11 may also be connected to a fixing part such as a door post 40 via a hinge to realize the rotation of the main door 11.
In this embodiment, the driving motor 21 rotates in one direction through the linkage of the crank-rocker mechanism and the four-bar linkage mechanism, so that the opening and closing of the main door 11 can be realized, and therefore, the movement of the main door driving mechanism 20 has no dead angle, and the door driving mechanism is simple in structure, convenient to operate and stable in operation.
Referring to fig. 1, 2, 3, 8 and 9, the sub-door driving mechanism 30 includes a fourth push rod 31, a fifth push rod 32, a first rotating shaft 33, a second rotating shaft 34, a main door gear 35 and a sub-door gear 36, the first rotating shaft 33 is fixed on the main door 11, the second rotating shaft 34 is fixed on the sub-door 12, the fourth push rod 31 is connected to the fixing portion, preferably the door post 40, through a third base 253 and can rotate relative to the fixing portion, the fifth push rod 32 is formed with a first rod 321 and a second rod 322 fixedly connected to the first rod 321, the first rod 321 and the second rod 322 extend in different directions, one end of the fourth push rod 31 away from the fixing portion is connected to the first rod 321 and can rotate relative to the first rod 321, specifically, the connecting point of the first rod 321 and the second rod 322 is sleeved on the first rotating shaft 33, both the first rod 321 and the second rod 322 can rotate relative to the first rotating shaft 33, the end of the second rod 322 far from the first rod 321 is sleeved on the second rotating shaft 34, the second rod 322 can rotate relative to the second rotating shaft 34, the fourth push rod 31, the fifth push rod 32 and the rotating plane of the main door leaf 11 are parallel to each other, the main door leaf gear 35 is fixed on the first rotating shaft 33, the auxiliary door leaf gear 36 is fixed on the second rotating shaft 34, and the main door leaf gear 35 and the auxiliary door leaf gear 36 are meshed with each other.
In this embodiment, a connection point (see point e in fig. 1) of the fourth rod 31 and the fixing portion, a connection point (see point f in fig. 1) of the fourth rod 31 and the first rod 321, a connection point (see point g in fig. 1) of the first rod 321 and the first rotating shaft 33, and a connection point (see point d in fig. 1) of the main door 11 and the fixing portion may form a four-bar mechanism, wherein the fixing portion may be used as a frame of the four-bar mechanism, the fourth rod 31 and the main door 11 may be used as a connecting rod of the four-bar mechanism, the first rod 321 may be used as a connecting rod of the four-bar mechanism, when the main door 11 is opened or closed by the driving of the main door driving mechanism 20, the four-bar mechanism is driven to move, when the main door 11 rotates, an included angle between the first rod 321 and the main door 11 changes, and since the first rod 321 and the second rod 322 are fixedly connected to each other, an included angle between the second rod 322 and the main door 11 also changes, the second rod 322 drives the second rotating shaft 34 to rotate around the first rotating shaft 33, and at this time, as the main door gear 35 and the sub-door gear 36 are respectively and fixedly arranged on the first rotating shaft 33 and the second rotating shaft 34, and as a result of the rotation of the second rotating shaft 34 around the first rotating shaft 33, the sub-door gear 36 not only needs to revolve around the main door gear 35, but also needs to drive the second rotating shaft 34 to rotate under the action of the meshing force, so that the included angle between the sub-door 12 and the main door 11 can be changed, and the contraction and extension of the sub-door 12 relative to the main door 11 can be realized.
Further, in the present embodiment, the extending direction of the fourth push rod 31 is parallel to the main door 11, and the distance from the connection point (i.e., point e) of the fourth push rod 31 and the fixing portion to the connection point (i.e., point f) of the fourth push rod 31 and the first rod 321 (i.e., the distance between points ef) is equal to the distance from the connection point (i.e., point d) of the main door 11 and the fixing portion to the connection point (i.e., point g) of the first rod 321 and the first rotating shaft 33 (i.e., the distance between points dg). That is, a parallel four-bar linkage is formed among e, f, g and d. At this time, when the main door 11 rotates through 90 °, the auxiliary door 12 also rotates 90 ° with respect to the main door 11, so that the auxiliary door 12 can be in the same plane with the main door 11 in the unfolded state (see fig. 1) and can be attached to the main door 11 in the retracted state (see fig. 2).
Further, the fourth push rod 31 is disposed on a side of the main door 11 facing the main door driving mechanism 20, that is, on a side of the main door 11 in the opening direction. So that when the trackless folding door is in an open state, the auxiliary door leaf 12 is completely unfolded and is in the same plane with the main door leaf 11, and when the trackless folding door is in a closed state, the auxiliary door leaf 12 is completely contracted and is attached to the main door leaf 11.
Further, in order to ensure the smooth movement of the auxiliary door leaf 12, the upper and lower parts of the trackless folding door are provided with auxiliary door leaf driving mechanisms 30.
Meanwhile, in order to prevent the arrangement of the auxiliary door driving mechanism 30 from affecting the expansion and contraction of the auxiliary door 12, the fourth push rod 31, the fifth push rod 32, the first rotating shaft 33, the second rotating shaft 34, the main door gear 35, and the auxiliary door gear 36 are all arranged outside the end portions (see the upper end and/or the lower end of fig. 3) of the main door 11 and the auxiliary door 12.
The width of the auxiliary door leaf 12 (i.e., the width in the left-right direction in fig. 2) is smaller than the length from the connection point (i.e., point c) of the third push rod 24 and the main door leaf 11 to the side edge of the main door leaf 11 close to the auxiliary door leaf 12, so as to prevent the third push rod 24 from affecting the contraction of the auxiliary door leaf 12.
In this embodiment, the auxiliary door leaf driving mechanism 30 is configured to divide the fifth link into the first rod 321 and the second rod 322 extending in different directions through the four-bar linkage, so that when the main door leaf 11 rotates, the four-bar linkage transmits the acting force to drive the second rotating shaft 34 to rotate around the first rotating shaft 33, and due to the arrangement of the main door leaf gear 35 and the auxiliary door leaf gear 36, the auxiliary door leaf gear 36 drives the second rotating shaft 34 to rotate around the axis thereof, so that the auxiliary door leaf 12 can complete the extension or retraction of the auxiliary door leaf 12 while the main door leaf 11 is opened or closed, at this time, the track and the guide wheel are not required to limit the auxiliary door leaf 12, and the movement does not generate a dead angle, and is simple in structure, stable in operation, and long in service life.
To sum up, the utility model discloses a setting of a plurality of link mechanism can realize extension and the shrink of vice door leaf 12 under the condition that does not need track and guide pulley, and the motion of main door leaf 11 and vice door leaf 12 all does not have the dead angle, simple structure, and stable operation, longe-lived.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and although the present invention has been disclosed with the preferred embodiments, it is not limited to the present invention, and any skilled person in the art can make some modifications or equivalent changes without departing from the technical scope of the present invention.

Claims (10)

1. The utility model provides a no track folding door which characterized in that: the door comprises a main door leaf, an auxiliary door leaf, a main door leaf driving mechanism and an auxiliary door leaf driving mechanism, wherein the main door leaf is connected with the auxiliary door leaf, the main door leaf driving mechanism drives the main door leaf to rotate, the auxiliary door leaf driving mechanism comprises a fourth push rod, a fifth push rod, a first rotating shaft, a second rotating shaft, a main door leaf gear and an auxiliary door leaf gear, the first rotating shaft is fixed on the main door leaf, the second rotating shaft is fixed on the auxiliary door leaf, the main door leaf and the fourth push rod are connected with a fixing part and can rotate relative to the fixing part, a first rod body and a second rod body fixedly connected with the first rod body are formed on the fifth push rod, the first rod body and the second rod body have different extending directions, one end of the fourth push rod, which is far away from the fixing part, is connected with the first rod body and can rotate relative to the first rod body, the first rod body is sleeved on the first rotating shaft and can rotate relative to the first rotating shaft, one end, far away from the first rod body, of the second rod body is sleeved on the second rotating shaft and can rotate relative to the second rotating shaft, the rotating planes of the fourth push rod, the fifth push rod and the main door leaf are parallel to each other, the main door leaf gear is fixedly arranged on the first rotating shaft, the auxiliary door leaf gear is fixedly arranged on the second rotating shaft, and the main door leaf gear is meshed with the auxiliary door leaf gear.
2. The trackless folding door of claim 1, wherein: the extending direction of the fourth push rod is parallel to the main door leaf, and the distance from the connection point of the fourth push rod and the fixing part to the connection point of the fourth push rod and the first rod body is equal to the distance from the connection point of the main door leaf and the fixing part to the connection point of the first rod body and the first rotating shaft.
3. The trackless folding door of claim 1, wherein: the fourth push rod is arranged on one side of the opening direction of the main door leaf.
4. The trackless folding door of claim 1, wherein: and the upper part and the lower part of the trackless folding door are respectively provided with the auxiliary door leaf driving mechanism.
5. The trackless folding door of claim 4, wherein: the fourth push rod, the fifth push rod, the first rotating shaft, the second rotating shaft, the main door leaf gear and the auxiliary door leaf gear are all arranged outside the end parts of the main door leaf and the auxiliary door leaf in the height direction.
6. The trackless folding door of claim 1, wherein: the connecting point of the first rod body and the first rotating shaft is positioned at the connecting part of the first rod body and the second rod body.
7. The trackless folding door of claim 1, wherein: the main door leaf driving mechanism comprises a driving motor, a first push rod, a second push rod and a third push rod, the first push rod is connected with the driving motor and can rotate relative to the driving motor, a rotating shaft connected with the driving motor is deviated from the rotating shaft of the driving motor, one end of the first push rod, far away from the driving motor, is connected with the second push rod and can rotate relative to the second push rod, one end of the second push rod is connected with a fixed part and can rotate relative to the fixed part, one end of the second push rod, far away from the fixed part, is connected with the third push rod and can rotate relative to the third push rod, one end of the third push rod, far away from the second push rod, is connected with the main door leaf and can rotate relative to the main door leaf, the main door leaf is connected with the fixed part and can rotate relative to the fixed part, the rotating planes of the first push rod, the second push rod and the third push rod are parallel to each other.
8. The trackless folding door of claim 7, wherein: the trackless folding door further comprises a door post, the second push rod, the fourth push rod and the main door leaf are connected to the outer circumferential surface of the door post, and a connecting point of the second push rod and the door post is arranged between a connecting point of the first push rod and the driving motor and a connecting point of the main door leaf and the door post.
9. The trackless folding door of claim 7, wherein: the main door leaf driving mechanism is arranged in the middle of the main door leaf in the height direction and is positioned on one side of the opening direction of the main door leaf.
10. The trackless folding door of claim 8, wherein: the trackless folding door further comprises a third base, and the fourth push rod and the main door leaf are connected with the door post through the third base.
CN201921012309.7U 2019-06-28 2019-06-28 No-track folding door Active CN210888614U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921012309.7U CN210888614U (en) 2019-06-28 2019-06-28 No-track folding door

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921012309.7U CN210888614U (en) 2019-06-28 2019-06-28 No-track folding door

Publications (1)

Publication Number Publication Date
CN210888614U true CN210888614U (en) 2020-06-30

Family

ID=71311777

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921012309.7U Active CN210888614U (en) 2019-06-28 2019-06-28 No-track folding door

Country Status (1)

Country Link
CN (1) CN210888614U (en)

Similar Documents

Publication Publication Date Title
CN209369645U (en) A kind of pre-assembled garage door
CN210888614U (en) No-track folding door
CN204199997U (en) Electronic two-fold door
CN206346623U (en) A kind of thick door buffer hinge of two sections of power
CN205078121U (en) Adjacent door leaf interlock mechanism of folding door
CN107605306A (en) A kind of Novel unpowered rotates clamshell doors
CN104863461A (en) Two-leaf intelligent door without dead points
CN107554245B (en) Decorative cover linkage mechanism of sunshade curtain
KR101720461B1 (en) A structure for opening and closing door
CN205000843U (en) Flat -open folding door
CN109969208B (en) Front end opening and closing mechanism for railway vehicle and railway vehicle with front end opening and closing mechanism
CN209369696U (en) A kind of electric railless folding door
CN105201354B (en) A kind of adjacent door leaf interlinked mechanism of folding door
CN105059436B (en) A kind of structure that electric unicycle pedal folding is realized based on swept surface and shifting part
CN103993796B (en) The nothing lock door-closing locking mechanism of electric foldable flat-opening door
CN108193991A (en) One kind is opened flat folding door
CN219554285U (en) Synchronous switch door of switch cabinet
CN220166758U (en) Folding channel gate
CN110374444A (en) Multistage translation retractable door
CN205605082U (en) Electronic folding vertical hinged door with wireless control function
JP2003055922A (en) Arm type gate
CN201142215Y (en) Door opening/closing mechanism of vertical disc machine
CN217632218U (en) Convenient manual bars door
CN218055252U (en) Tool bogie with sunshade function
CN220037239U (en) 180-degree inward-folding type rotating shaft assembly

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CP03 Change of name, title or address
CP03 Change of name, title or address

Address after: 200040 floors 6-9, South Building, No. 258, Shimen 2nd Road, Jing'an District, Shanghai

Patentee after: Shanghai Huajian Engineering Construction Consulting Co.,Ltd.

Address before: No.258, Shimen 2nd Road, Jing'an District, Shanghai 200040

Patentee before: Shanghai Xian Dai Architecture, Engineering & Consulting Co.,Ltd.