TWM472741U - Electric elevation door sill - Google Patents

Description

Electric lift threshold

This creation relates to a shielding device for a door seam.

The structure of the common door is a door leaf pivoted on one side of the door frame, and the door leaf can be rotated relative to the door frame. In order to rotate the door frame smoothly in the door frame and construction, the door frame is larger than the door leaf, so there is a gap between the door leaf and the ground, so the door leaf Outside sounds, smoke, dust, mosquitoes or water enter the room through the gap of the door, and the door leaf is leaky in sound insulation, smoke prevention, fire prevention, insect prevention and water blocking, and some dust in the air pollution area is also caused by This floated into the house. There is also a gap between the door leaf and the door leaf or between the door leaf and the door frame.

In order to close the gap between the door leaf and the ground, the existing products such as the British Lorient Polyproducts LTD on its website www.lorientuk.com/products/8000-series-automatic-threshold-seals series of smoke prevention, Fireproof and soundproof automatic door sealing device (some products are called drop seal), which exposes a variety of related products but whose structure is to hide a sealing device for closing the door seam in an n-shaped strip-shaped outer frame and utilize one a linkage device for driving the seal device, the linkage device having a linkage rod having a pressing head protruding from the open end of the n-shaped elongated outer frame; thereby, the automatic door slit is closed The device is installed on the lower side of one of the fans or on one side of the lower side of the door leaf, and the pressing head protruding from one side of the connecting rod is located between the door frame and the door leaf, and the user closes the door leaf by During the actuating process, when the door leaf is pivotally closed relative to the door frame, the pressing head of the linking rod is pushed into the long outer frame by the door frame pressing, and the linkage rod drives the sealing device to fall downward, and the door is closed while the door is closed A sealing device blocks the door seam. On the contrary, when the door leaf is opened, the pressing head of the linkage bar is not pressed by the door frame and is retracted into the inner side of the long outer frame, and the linkage bar is retracted to the inside of the n-shaped elongated outer frame.

The problem with these products is that the door device must be protruded or received by means of opening and closing the door leaf to close the door seam; in addition, the conventional products must be separately installed on each door leaf to operate; another problem is more There is also a gap between every two door fans in the portal of the door leaf. The interlocking lever actuation mode of the linkage device of the conventional product is not suitable for being installed in the direction of closing between the door leaf and the door leaf; even if the conventional products are separately Installed on the lower side of one of the doors of each door of the multi-door fan, when the plurality of door fans are simultaneously closed, the sealing devices are respectively lowered by the lower ends of the door leaves to close the door gap, and there is still a gap between the sealing device and the sealing device. Sound, mosquitoes, smoke, water, etc. can still enter the room, and the closed occlusion of the door seam is not perfect.

To this end, the creation provides an electric lifting sill for installation on all sides of the portal to shield the door seam. The electric lifting sill provided by the creation can be electrically controlled, and the user can control the creation at any time according to his needs. The electric door stop stops or opens the door to overcome the above problem.

The electric lifting sill provided by the present invention, in the embodiment, can be installed in the ground groove of the ground to cover the door joint between the ground and the door leaf; or the upper door frame is installed to cover the upper door frame and the door leaf Between the gaps; or the creation of one of the door leaf edges between the door leaf and the door leaf to cover the gap between the two door fans. As mentioned above, only The embodiments of the present invention are not intended to limit the scope of the present invention, and variations of the present invention by those skilled in the art, as well as well-known changes made by those skilled in the art, should still be covered by the present invention. The scope of implementation.

The electric lifting sill includes: an accommodating bottom case having an open end; at least one electric lifting device is disposed on the inner side of the accommodating bottom case, the lifting device includes an actuating rod, and the actuating rod is provided at one end Extending from the lifting device as a free end, the free end is oriented toward the open end of the receiving bottom case; the baffle includes a blocking piece and a retaining wall, the retaining wall extending from a bottom side of the blocking piece, the retaining bar being coupled to a free end of the actuating rod, the retaining wall is movable to receive and reposition the inner side of the bottom case, the flap is movably abutted at the open end; thereby, the electric lifting device is actuated once the actuating rod can push the The baffle is moved to a distance toward the outer side of the open end of the accommodating bottom case to suspend to cover a door seam, and the electric lifting device is further actuated once the actuating lever can return the baffle to the original position.

According to an embodiment of the present invention, the accommodating bottom case further includes a first slot and a second slot, the first slot has a first opening on an upper side thereof, and a second opening on the upper side of the second slot, the first slot and The second groove is symmetrically formed between the inner side of the accommodating bottom case and the bracket, and the first surrounding wall is movably disposed in the first groove through the first opening, and the second surrounding wall can be The slats are disposed in the second slot through the second opening. According to an embodiment of the present invention, the dam further includes a bracket coupled to the bottom side of the dam, wherein the free end of the actuating lever Attached to the bracket of the baffle.

According to an embodiment of the present invention, the first wall of the retaining wall and the symmetrical second wall form a gap, and the bracket is coupled to the bottom side of the baffle by the gap.

According to an embodiment of the present invention, the bottom side of the baffle is formed with a first T-shaped pass And a T-shaped connecting portion is formed on one side of the bracket, and the T-shaped connecting portion is coupled through the first T-shaped through groove.

According to an embodiment of the present invention, the accommodating bottom case further comprises a set of symmetrical fixed rails, wherein the fixed trajectory is respectively formed by extending from the inner side of the accommodating bottom case to the horizontal direction; And the foot portion is respectively disposed on the fixed rail, whereby the brace supports and receives the pressure applied thereto by the support bracket.

According to an embodiment of the present invention, the accommodating bottom case further comprises a plurality of symmetrical fixing grooves respectively formed by extending from the inner side of the accommodating bottom case; wherein the electric lifting device further comprises a The fixing flange is protruded outward from a peripheral edge of the electric lifting device, and the fixing flange is inserted into the fixing groove for fixing the electric lifting device.

According to an embodiment of the present invention, a second T-shaped through groove is formed on the inner side of the bracket; and a free end of the actuating rod of the electric lifting device.

According to an embodiment of the present invention, the electric lifting sill is further combined with a fixing piece, and the free end and the fixing piece pass through the second T-shaped through groove.

Different from the prior art, the door lift is used to touch the creation. The embodiment of the electric lift door of the present invention is installed in a pre-opened ground groove under the door leaf, and can be operated by electric control, for example, the door handle is closed. Or an electric button or an electric lifting device that is instructed by the remote control device to push up the bar, and shield the door slit under the door or the multi-door fan, especially in the lower side of the wide door of the multi-door fan. The electric blocking device is in the ground slot, so there is only one unit of the bar, and the bottom of the multi-door fan and the ground are completely blocked and closed without gaps to avoid sound, smoke, insects, water and dust. When the user opens the door, the user can instantaneously accommodate the dam to the inside of the accommodating bottom case by electric control. At the same time, the field to which the invention belongs Those who have the usual knowledge can understand that this creation can be installed with a door frame to cover the gap between the door frame and the door leaf; or the creation is installed inside the door leaf edge between the door leaf and the door leaf to cover two The gap between the door leaves.

100‧‧‧Electric lifting threshold

1‧‧‧ accommodating bottom case

11‧‧‧Open end

13‧‧‧ Fixed rail

15‧‧‧first slot

151‧‧‧ first opening

153‧‧‧ inner flange

17‧‧‧second trough

171‧‧‧ second opening

173‧‧‧ inner flange

19‧‧‧Extension

2‧‧‧ lifting device

21‧‧‧Action rod

211‧‧‧Free end

213‧‧‧Fixed tablets

23‧‧‧Fixed flange

25‧‧‧fixed slot

3‧‧ ‧ s

30‧‧ ‧Flap

31‧‧‧Retaining wall

311‧‧‧First wall

3112‧‧‧T-shaped flange

313‧‧‧Second wall

3132‧‧‧T-shaped flange

315‧‧‧ gap

33‧‧‧ bracket

331‧‧‧T-shaped joint

333‧‧‧foot

335‧‧‧Second T-shaped trough

35‧‧‧First T-shaped trough

4‧‧‧Two-way door

40‧‧‧ big box

401‧‧‧Large frame inner edge

50‧‧‧ middle frame

501‧‧‧ middle frame inner edge

503‧‧‧ middle frame outer edge

70‧‧‧ door leaf

701‧‧‧door rim

8‧‧‧door handle

G‧‧‧door seam

S1‧‧‧ first direction

S2‧‧‧ second direction

The first figure is a three-dimensional schematic diagram of the cross section of the electric lifting door sill; the second drawing is an exploded view of the electric lifting sill of the present invention; the third drawing is a schematic view of the rib of the electric lifting sill of the present invention being stored inside the accommodating bottom case; Figure 4 is a schematic view of the sturdy bar of the present electric lifting sill protruding from the outside of the accommodating bottom case; Fig. 5 is a schematic view of the electric hoisting door of the present invention combined with the side of the door seam; Fig. 6 is the electric lifting sill of the present invention The schematic diagram of the slat protruding from the door when the door is closed; the seventh drawing is a schematic diagram of the shackle of the present invention when the door is opened to the inside of the accommodating bottom case without shielding the door sill.

In order to enable your review committee to have a better understanding and recognition of the features and characteristics of this creation, the following preferred embodiments are listed below with reference to the accompanying drawings: Please refer to Figures 1 to 4 for an electric lifting threshold. 100, comprising: a bottom case 1 having an open end 11; at least one electric lifting device 2 is disposed inside the receiving bottom case 1, the lifting device 2 includes an actuating rod 21, the actuating One end of the rod 21 extends from the lifting device 2 to form a free end 211, and the free end 211 faces the open end 11 of the receiving bottom case; the baffle 3 includes a blocking piece 30 and a retaining wall 31. The wall 31 extends from the bottom side of the flap 30, and the rib 3 is freely coupled to the actuating rod 21 The end wall 211 is movably received inside the accommodating bottom case 1 , and the blocking piece 30 is adjacent to the open end 11 . In a preferred embodiment, the electric lifting device 2 is two. The free ends 211 of the individual actuating bars 21 are respectively connected to the two sides of the bar 3 to simultaneously push the baffle 3 to operate; since the size of the door and the number of the door are different, the electric weight can be increased according to the weight and span of the bar 3 The lifting device 2 is used in plurality to facilitate operation.

In an embodiment of the present invention, the accommodating bottom case 1 further includes a first slot 15 and a second slot 17. The first slot 15 has a first opening 151 on the upper side and a second opening on the upper side of the second slot 17. 171, the first slot 15 and the second slot 17 are symmetrically formed on the inner side of the accommodating bottom case 1, and the first wall 311 is movably disposed in the first slot 15 via the first opening 151. The second wall 313 is movably disposed in the second slot 17 via the second opening 171. Further, the end edge of the first opening 151 is symmetrically formed with a set of inner flanges 153, and the end edges of the second openings 171 are symmetrically formed with a set of inner flanges 173, and the free ends of the first surrounding walls 311 are formed as T-shaped convex portions. The rim 3112, the free end of the second wall 313 is formed as a T-shaped flange 3132, whereby the electric lifting device 2 pushes the bracket 33 to drive the dam 3 to open to the accommodating bottom case 1. The outer end of the end 11 protrudes to shield a door slit. The first wall 311 has a free end T-shaped flange 3112, and the second wall 313 has a free end T-shaped flange 3132 for abutting the inner flange 153 and the inner flange 173. The first opening 151 and the second opening 171 are closed and the dam 3 is prevented from coming off the accommodating bottom case 1 and has an appropriate shape variable.

Therefore, the electric lifting device 2 is actuated once, the actuating lever can push the baffle 3 to move toward the open end 11 of the receiving bottom case 1 to a distance, and form a stop for shielding a door slit. The electric lifting device 2 is again actuated once, the actuating rod 21 can be In order to reset the baffle 3 to the original position.

It should be particularly noted that the inside of the accommodating bottom case 1 has a limited accommodation space, so the volume of the electric lifting device 2 must be limited to accommodate the volume in the bottom case 1. The size of the electric lifting device 2 is small and the force is constant. The limit, relative to the weight and flexibility of the baffle 3, must be controlled to fit the power of the lifting device 2 in an appropriate range to match the power of the lifting device 2, in particular, the lifting device 2 of the present embodiment is directly The driving lifting device 2 pushes the force directly to push the gear 3 to act, and the direct driving method is different from the conventional product; for this reason, the first wall 311 and the first wall of the retaining wall 31 of the stall 3 The second wall 313 is preferably a flexible structure selected from a long strip shape, such as a rubber, or silicone, or a soft plastic, and the first groove 15 and the second groove 17 are formed inside. The volume of the first wall 311 and the second wall 313 of the retaining wall 31 is relatively large, whereby the first wall 311 has an appropriate and sufficient margin to be actuated inside the first slot 15 and is The first slot 15 guides to maintain the shape of the wall. The second wall 313 has an appropriate and sufficient margin to be actuated within the second slot 17 and is guided by the second slot 17 to maintain the shape of the fence. When the lifting device 2 pushes up the retaining wall 31 to move or return to the inside of the accommodating bottom case 1, the hard lifting device 2 is not hindered or rubbed against the inner wall and the inner structure of the bottom case 1 to resist the electric lifting device 2 In the driving behavior, the first wall 311 and the second wall 313 have a space of suitable softness and deformation, and do not cause a stagnation with the first groove 15 and the second groove 17 in the receiving bottom case 1 The baffle 3 and its retaining wall 31 can be deformed even if the ambient temperature changes greatly or the operating speed is fast, and can be smoothly pushed up by the electric lifting device 2 to the outer bottom door 1 Or resetting is accommodated in the accommodating bottom case 1.

Please refer to Figure 5 for an implementation of the electric lifting door sill 100. The accommodating bottom case 1 and the rib 3 are arranged in a long strip type and can be installed in a pre-opened ground groove under the two-way door 4, and the sash 3 is not required to be operated by the door leaf to protrude the cover door. G, the creation can be actuated by electric control, for example, using an electric door lock or an electric button or by a remote control device to electrically connect the electric lifting device 2, in this embodiment, the door handle 8 is installed. The electric lifting device 2 of the present invention is electrically connected to an electronically controlled door lock (not shown). The electric lifting device 2 includes an IC circuit driving control unit (not shown), and the IC circuit driving control unit can be disposed at the The inside of the bottom case 1 is electrically connected to the electric lifting device 2, and please refer to FIG. 4 and FIG. 6 simultaneously. When the door leaf handle 8 closes the two-way door 4, the electronic control door lock is activated, and a telecommunications command IC circuit is driven. The control unit activates the actuating lever 21 of the electric lifting device 2 to push the baffle 3 upwardly from the accommodating bottom case 1 to cover the door gap G between the ground and the bottom of the door, especially under the wide door having a plurality of door leaves This creation only needs to embed an electric stop device in the ground trough. Therefore, only one unit of the baffle 3 and its retaining wall 31 can completely block the door gap G between the lower side of the multi-door fan and the ground to prevent sound, smoke, insects, water and dust from entering. Referring to FIG. 3 and FIG. 7 again, when the user operates the door handle 8 to open the two-way door 4, a signal is sent to instruct the electric lifting device 2 to pull the bar 3 away from the door gap G, and the bar 3 It is housed inside the accommodating bottom case 1 to facilitate access of the wheelchair, personnel, and goods to the door.

At the same time, according to the above embodiment, the person having the general knowledge in the field of the invention can understand that the present invention can be installed with a door frame to cover the gap between the door frame and the door leaf; or the creation is installed between the door leaf and the door leaf. The inside of the edge of one of the door leaves is used to cover the gap between the two doors.

Please refer to the second embodiment of FIG. 2, FIG. 3 and FIG. 4, wherein the baffle 3 further comprises a bracket 33, which is a long rigid support, the bracket 33 Abutting on the bottom side of the baffle 3, wherein the free end 211 of the actuating lever 21 is coupled to the bracket 33 of the baffle 3, the bracket 33 is coupled to the lower side of the baffle 3 corresponding to the length of the baffle 3, The embodiment of the embodiment of the strip 3 is selected from a soft material, such as rubber, plastic, the bracket 33 is selected from a rigid material, such as a metal aluminum alloy, iron or selected from a hard plastic material to support the large span of the strip 3 The electric lifting device 2 is disposed inside the accommodating bottom case 1. In the preferred embodiment, the two electric lifting devices 2 are respectively disposed on the two sides of the accommodating bottom case 1, and the free ends 211 of the two operating rods 21 are utilized. The two actuating rods 21 of the two electric lifting devices 2 are respectively pushed up or down by the actuating levers 21 to support the interlocking and fixing of the baffle 3, and the baffle of the baffle 3 is The retaining wall 31 is supported by the bracket 33 so as not to deform and form a gap when the stop is closed, or as shown in Fig. 5 of the above embodiment, the creative system is embedded in the ground groove under the door seam, and various persons such as a person or a wheelchair. The external force of the article is applied to the upper side of the baffle 3 by pressing, and the bracket 33 can support the baffle 3 against the outside. Without deformation.

Referring to the first embodiment of the present invention, an n-shaped strip-shaped strip 3 having a gap 315 is formed between the first wall 311 of the retaining wall 31 and the second wall 313 of the symmetry, and The accommodating bottom case 1 is a U-shaped long bottom case, and the bracket 33 is coupled to the bottom side of the dam 3 by the gap 315, wherein the baffle 3 has an n-shaped bottom side The width of the retaining wall 31 is smaller than the width of the U-shaped inner side of the accommodating bottom case 1 for receiving the retaining wall 31, and the blocking piece 30 of the dam 3 movably abuts and covers the accommodating bottom. The open end 11 of the shell 1.

In one embodiment of the present invention, the baffle 3 is viewed from a cross-sectional view, and a first T-shaped through groove 35 is formed on a bottom side thereof; and the bracket 33 is formed by a cross-sectional shape (see FIGS. 2 and 3). A T-shaped connecting portion 331 is formed on one side thereof, and a T-shaped connecting portion 331 of the bracket 33 is formed. The first T-shaped through groove 35 of the baffle 3 is worn to be quickly joined.

An embodiment of the present invention, wherein the accommodating bottom case 1 further comprises a set of symmetrical fixed rails 13 respectively formed by extending the inner side of the accommodating bottom case 1 in a horizontal direction; The sides respectively form a foot 333 which is respectively disposed on the fixed rail 13, whereby the bracket 31 receives the pressure applied above the dam 31 by the bracket 33 and is conveyed to the fixed rail 13 for support.

An embodiment of the present invention, wherein the accommodating bottom case 1 further comprises a plurality of symmetrical fixing grooves 25 formed by extending from the inner side of the accommodating bottom case 1 in a horizontal direction; 2 further includes a fixing flange 23 which is protruded outward from a peripheral edge of the electric lifting device 2, and the fixing flange 23 is inserted into the fixing groove 25 for fixing the electric lifting device 2 The second T-shaped through slot 335 is formed on the inner side of the bracket 33; and the free end 211 of the actuating rod 21 is further coupled with a fixing piece 213. The free end 211 and the fixing piece 213 pass through the second T-shaped through hole. The slot 35 is configured to engage the bracket 33 with the actuating lever 21.

This creation implements an aspect in which the electric lifting device 2 is a linear stepping motor.

In one embodiment of the present invention, the accommodating bottom case 1 further includes a symmetrical extending portion 19 extending outwardly from the open end of the accommodating bottom case 1 for engaging the blocking piece The height of the two sides of the blocking piece 30 is adjacent to the open end 11 to prevent the user's foot from touching the height of the two sides of the blocking piece 30, or the wheelchair or the like can pass through the extending piece 19 above the blocking piece 30; The creation portion can be fixed to both sides of the ground trough by the extension portion 19, or to the periphery of the door frame or the door leaf.

Referring to FIG. 5 to FIG. 7 , an embodiment of the present invention further includes a two-way door 4 , and the electric lift threshold 100 is disposed on a lower side of the two-way door 4 for shielding the door of the two-way door 4 . a gap G, the two-way door 4 includes a large frame 40, a middle frame 50, and a door leaf 70. The large frame 40 has a large frame inner edge 401 and a middle frame 50. The inner frame 50 defines a middle frame inner edge 501. A middle frame outer edge 503 is formed on the outer side of the middle frame 50, and the middle frame outer edge 503 is smaller than the large frame inner edge 401; the hinge (not shown) is connected to the large frame 40 on one side, and the other side of the hinge is connected In the middle frame 50, the hinge is installed to be rotatable only in the first direction S1 (refer to FIG. 5), whereby the middle frame 50 can be rotated back and forth with respect to the large frame inner edge 401 in the first direction S1; 70, the door leaf 70 has a door outer edge 701, the door outer edge 701 is smaller than the middle frame inner edge 501; and the other middle frame 50 is connected by another hinge (not shown), the other hinge is another One side is connected to the outer edge 701 of the door, and the hinge is installed to be rotatable only in the second direction S2 (refer to FIG. 7), forming another hinge (not shown) to stop the work in the first direction S1. , Whereby the door 70 relative to the frame edge 501 S2 in the second direction and from the hoist rotated.

Referring to FIG. 5, the door leaf 70 is reversed in the first direction S1 by the hinge, and the middle frame 50 is simultaneously driven to form a door that can be opened in the first direction S1 (the middle frame 50 is combined with the door leaf 70).

Referring to FIG. 7, the door leaf 70 is pushed away from the middle frame 50 to form a small door (the door leaf 70) that can be opened in the second direction S2 with respect to the first direction S1.

The above-mentioned gate (the middle frame 50 is combined with the door leaf 70) is opened to the first direction S1 or the second door S2 of the small door (the door leaf 70) is opened, that is, simultaneously with the outward or inward (or leftward, rightward) Closed two-way function.

The two-way door 4 can form a three-in-one door middle door structure of a door frame by combining the large frame 40, the middle frame 50 and the door leaf 70 by different mounting directions of the door hinges. It is also a unique frame structure of a frame and two doors. The door of the door function also includes two physical doors of the small door, which are divided into two one-way opening door functions, wherein the middle frame The door leaf 70 and the door frame 70 form a gate which can be opened in the first direction S1 (the middle frame 50 is combined with the door leaf 70) A; the door leaf 70 is formed with the middle frame 50 as a base axis, and is formed with respect to the first direction S1. The small door (door 70) that can be opened in the second direction S2, in order to create a flexible opening direction, can open and elastically move the door in any direction to escape and close the fire prevention function, but the two-way door 4 is up to the above two-way For the purpose of opening, there must be a door gap G between the lower side of the two-way door 4 and the floor. For this reason, the two-way door 4 of the present invention particularly requires the electric lifting door sill 100 to be combined with one of the accommodating grooves opened in the lower floor. Or the electric control door installed in the door handle 8 in the next receiving groove of the ground The electric lifting device 2 of the present invention is electrically connected to the lock (not shown). The electric lifting device 2 includes an IC circuit driving control unit (not shown), and the IC circuit driving control unit can be disposed at the receiving bottom. The inside of the casing 1 is electrically connected to the electric lifting device 2, please refer to FIG. 4 and FIG. 6 at the same time. When the door handle 8 closes the door 4, the electronic door lock is activated, and a telecommunications command IC circuit is driven to start the control unit. The actuating lever 21 of the electric lifting device 2 pushes up the baffle 3 to protrude upward from the accommodating bottom case 1 to cover the door gap G between the ground and the bottom of the door leaf. Please refer to FIG. 3 and FIG. 7 for the user. When the door leaf handle 8 is opened to open the door No. 4, a signal is sent to instruct the electric lifting device 2 to pull the bar 3 away from the door slit, and the bar 3 is received inside the receiving bottom case 1.

The two-way door 4 of the present invention is not limited to the traditional center type double-action door, and when the frame fans are pushed and pulled between the opening and closing, it is inevitable that the angle of the door shaft rotation limit is limited. The door leaf can be pushed and pulled to a limit angle such as one hundred and eighty degrees. This creation is applied to buildings such as entrance doors, interior doors, especially for open doors and fire doors with 180-degree open doors; also because of this two-way integration, that is, push-and-go (ie eccentric type one-way The function that the door <single-action> can't reach) has gained unprecedented flexibility and convenience, that is, the left door (LH) and the right door (RH), and the fusion coexistence is a door.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present embodiments, and the equivalents of those skilled in the art in accordance with the present invention are well known to those skilled in the art. Changes should still be covered by this creation.

1‧‧‧ accommodating bottom case

2‧‧‧ lifting device

21‧‧‧Action rod

211‧‧‧Free end

3‧‧ ‧ s

30‧‧ ‧Flap

31‧‧‧Retaining wall

311‧‧‧First wall

3112‧‧‧T-shaped flange

313‧‧‧Second wall

33‧‧‧ bracket

331‧‧‧T-shaped joint

333‧‧‧foot

35‧‧‧First T-shaped trough

Claims (10)

An electric lifting sill includes: a receiving bottom case, the receiving bottom case has an open end; at least one electric lifting device is disposed inside the receiving bottom case, the lifting device comprises an actuating rod, and the actuating rod is end-to-end The lifting device is formed as a free end, the free end is oriented toward the open end of the receiving bottom case; the dam includes a blocking piece and a retaining wall, the retaining wall extending from the bottom side of the blocking piece, the blocking a strip is coupled to the free end of the actuating rod, the retaining wall is movably received inside a receiving bottom case, the blocking piece abuts the open end; wherein the retaining wall further comprises a first surrounding wall and a symmetrical second surrounding wall; The accommodating bottom case further includes a first slot and a second slot, the upper side of the first slot has a first opening, and the upper side of the second slot has a second opening, wherein the first slot and the second slot are respectively symmetrically formed Having the inner side of the bottom case, the first surrounding wall is movably disposed in the first slot through the first opening, and the second surrounding wall is movably disposed through the second opening in the second In the slot; thereby, the electric lifting device is actuated once This shield can push rod toward the outer open end of the accommodating direction of the bottom case actuated to suspend a distance, the electric lift actuating device on again once the actuating lever can return to the original position of the crosspiece. The electric hoisting door according to claim 1, wherein the dam further comprises a bracket coupled to the bottom side of the dam, wherein the free end of the actuating rod is coupled to the bracket of the dam. The electric hoisting door according to claim 2, wherein a gap is formed between the first wall and the symmetrical second wall, and the bracket is coupled to the bottom side of the dam by the gap. The electric lifting sill of claim 3, wherein a bottom side of the rib is formed with a first T-shaped through groove; and a side of the bracket is formed with a T-shaped connecting portion, the T-shaped connecting portion penetrating the first The T-shaped groove is combined. The electric hoisting door according to the second or third or fourth aspect of the invention, wherein the accommodating bottom case further comprises a set of symmetrical fixed rails, wherein the fixed trajectory respectively extends from the inner side of the accommodating bottom case to a horizontal direction. The bottom sides of the brackets respectively form a foot, and the feet are respectively disposed on the fixed rail, whereby the brace supports and receives the pressure applied thereto by the support bracket. The electric lifting sill of claim 5, wherein the inner side of the bracket is formed with a second T-shaped through groove; and the free end of the actuating rod is further coupled with a fixing piece, the free end and the fixing piece are disposed through the second T-shaped channel. The electric lifting sill of claim 1, wherein the electric lifting device is a stepping motor. The electric hoisting door according to claim 1 or 7, wherein the accommodating bottom case further comprises a set of symmetrical fixing grooves respectively formed by extending from the inner side of the accommodating bottom case to the horizontal direction; The lifting device further comprises a fixing flange which is protruded outward from a peripheral edge of the electric lifting device, and the fixing flange is inserted into the fixing groove for fixing the electric lifting device. The electric hoisting door according to claim 6, wherein the electric hoist door is further disposed on a lower side of the two-way door, the two-way door comprises: a large frame, and a large frame inner edge is formed inside the large frame a middle frame, the inner side of the middle frame forms a middle frame inner edge; a hinge, the hinge side is connected to the large frame, and the other side of the hinge is connected to the middle frame, and the hinge is installed to be rotatable only in the first direction, Thereby the middle frame can be opposite to the The inner edge of the large frame rotates back and forth in a first direction; the door leaf has a door outer edge, the outer edge of the door is smaller than the inner edge of the middle frame; the other hinge connects the middle frame to the other hinge side. The other side of the other hinge is connected to the door leaf, and the other hinge is mounted to be rotatable only in the second direction, whereby the door leaf can be rotated back and forth in the second direction with respect to the inner edge of the middle frame. The electric hoisting door according to claim 9, wherein the door leaf reverses the function in the first direction by another hinge, and the connection simultaneously drives the middle frame to form a door that can be opened in the first direction, or the door leaf pushes away The middle frame forms a small door that can be opened in the second direction with respect to the first direction.