Anti-falling structure of elevator door

Abstract

The utility model discloses an anti-drop structure of an elevator door, which belongs to the technical field of elevator sills and comprises an elevator door plate, a sliding guide shoe and a sill, the sliding guide shoe is fixedly connected with the elevator door, the sill is linked with the sliding guide shoe and provided with a first door guide groove, and a first sill sliding groove is communicated above the first door guide groove. A first anti-disengaging step is formed at the joint of the first sill sliding groove and the first door guide groove, a plurality of anti-disengaging bolts which are arranged at intervals and used for preventing the sliding guide shoe from disengaging from the door guide groove are arranged in a sliding mode, one end of each anti-disengaging bolt is riveted with the sliding guide shoe, and the other end of each anti-disengaging bolt is arranged in the first sill sliding groove in a penetrating mode and can be in linkage with the first anti-disengaging step. The anti-disengaging bolts freely slide in the first door guide groove when the door plate normally operates, when the door plate bears abnormal transverse force, the anti-disengaging bolts can abut against the vertical face of the first anti-disengaging step, the sliding guide shoe is prevented from disengaging from the door guide groove through the anti-shearing force of the anti-disengaging bolts, the safety of the elevator door is guaranteed, and the elevator structure is simplified.

Description

TECHNICAL FIELD

[0001] The utility model relates to elevator sill technical field, concretely relates to an elevator door anti -drop structure. BACKGROUND

[0002] The elevator is a kind of vertical lift with motor power, is provided with car, is used for the personnel or goods transport in multistory building, and the sill of elevator is installed between elevator door, and the operation of elevator car door and floor door has played the limiting direction function.

[0003] Chinese utility model patent with Chinese publication number "CN219950179U" discloses a sill, including the sill body, the outer side of the bottom of the sill body is equipped with the metal bracket of sill, the top of the sill body is equipped with the elevator door guide groove, the inner side of the elevator door guide groove is equipped with the elevator door body, the bottom of the elevator door body is connected with the elevator door guide groove slidingly through door sliding block, the inner side of the elevator door guide groove is equipped with the anti-drop groove, the outer side of door sliding block is equipped with the anti-drop outer hook inside the anti-drop groove.

[0004] However, the above-mentioned sill still has the following defects:

[0005] First, to prevent accidental falling of personnel into the shaft, the elevator door panel needs to be tested by pendulum impact, when the impact force acts on the door panel on the non-anti-drop groove side, the outer hook is easy to deform plastically due to stress concentration, which causes the door panel to fall into the shaft and causes the risk of falling into the shaft;

[0006] Second, the width of the door sliding block and the door guide groove is consistent, and the elevator door panel is heavy, so the door sliding block needs to be lifted by additional instruments when installing, which is difficult to install, and the elevator is more complex to maintain and repair.

[0007] Therefore, it is necessary to improve the above-mentioned defects. UTILITY MODEL CONTENTS

[0008] The utility model discloses a kind of anti-impact ability, anti-drop performance, simple structure and convenient assembly elevator door anti -drop structure, to solve the above problems existing in prior art.

[0009] To achieve the above object, the utility model discloses the technical scheme that a kind of elevator door anti-drop structure is adopted: a kind of elevator door anti-drop structure, including elevator door panel, with the sliding guide shoe of elevator door fixed connection and the threshold of the linkage of sliding guide shoe, threshold is equipped with first door guide groove, first door guide groove upper intercommunication has first threshold sliding slot, first threshold sliding slot and first door guide groove connection place form first anti-drop step, sliding guide shoe is fixed with the sliding block shoe lining of the linkage of first threshold sliding slot at first threshold sliding slot, sliding guide shoe is equipped with several interval settings prevent sliding guide shoe from separating from door guide groove and prevent the bolt of sliding guide shoe from one end of door panel riveting, the other end is arranged in first threshold sliding slot and can be linked with first anti-drop step.

[0010] By adopting the above technical scheme: prevent the bolt from sliding freely in first door guide groove when door panel normal operation, when door panel is subjected to abnormal lateral force, prevent the bolt will abut the vertical surface of first anti-drop step, prevent sliding guide shoe from separating from door guide groove by the shear resistance of bolt body, in addition riveted prevent the bolt is convenient to replace separately, after wearing, without integral replacement sliding guide shoe, only need to replace prevent the bolt to realize high-efficiency stable elevator door anti-drop capacity again, both ensure the safety of elevator door and simplify elevator door structure, and the inner wall of first threshold sliding slot of the both sides of sliding block shoe lining and threshold is attached, door panel will not appear shaking during elevator opening and closing, and the stability of door panel is further improved, simultaneously can prevent foreign matter from falling into threshold between the gap between sliding block shoe lining and first threshold sliding slot during opening and closing.

[0011] The above-mentioned elevator door anti-drop structure can be further provided as: any two adjacent prevent the bolt is staggered arrangement, and the door panel is provided with bending piece on both sides, and the mounting gap is formed on the bottom of the bending piece.

[0012] By adopting the above technical scheme: adjacent prevent the bolt staggered arrangement avoids force concentration, and provides uniform anti-drop support when being subjected to multi-angle stress, when elevator door is subjected to oblique impact, staggered bolt can form multi-stage limiting point, effectively disperses load, prevents single-point failure, improves the reliability of overall structure, and can clean dust and garbage falling in first door guide groove, to prevent running jam caused by dust and garbage stacking. In addition, the bending piece is arranged on both sides of the door panel, and the mounting gap is formed on the bottom of the bending piece, so that the installation and disassembly of the sliding guide shoe can be realized without lifting the door panel, which can isolate and protect the inside of the door panel and simplify the operation of elevator door installation, and improve the convenience during elevator installation.

[0013] The above-mentioned elevator door anti-drop structure can be further provided as: the door panel is provided with a lower head, the lower head is divided into a fixed plate, an installation plate for installing the sliding guide shoe and a positioning plate for closing the elevator door, the end of the sliding guide shoe is provided with a hinge bolt for hinging with the lower head, the installation plate is provided with a plurality of hinge holes linked with the hinge bolt, a fastening gasket is arranged between the hinge bolt and the sliding guide shoe, and the hinge bolt is linked with a hinge sleeve.

[0014] By adopting the technical scheme, the fixed plate is used for being connected with the door plate body, the mounting plate centrally bears the sliding guide shoe and the related anti-falling mechanism, the positioning plate ensures the overall sealing of the elevator door, reduces the process of installation and adjustment of the elevator door, the hinged hole is arranged on the positioning plate, the gasket is sleeved on the hinged pin and the hinged pin is penetrated into the hinged hole, stable support can be provided when the sliding guide shoe is installed, and deviation of the sliding guide shoe is prevented, then the hinged sleeve is sleeved on the end portion of the hinged pin, the stability of the connection between the elevator door plate and the guide shoe is improved, and in addition, the mounting plate and the positioning plate can effectively prevent dust from entering the sill sliding groove and reduce wear of the sliding guide shoe.

[0015] The anti-falling structure of the elevator door can be further provided with a second door guide groove in the sill, the second door guide groove is communicated with a second sill sliding groove, a second anti-falling step is formed at the connection between the second sill sliding groove and the second door guide groove, a pressure receiving cavity is arranged between the first door guide groove and the second door guide groove, and a fixed groove is arranged at the bottom of the pressure receiving cavity.

[0016] By adopting the technical scheme, the double-groove structure supports independent and stable movement of the center-opening door or the side-opening door, ensures synchronous opening and closing of the door leaves and mutual non-interference, and the first door guide groove and the second door guide groove cooperatively disperse the door load, reduce friction loss between the sliding guide shoe and the sill, effectively inhibit vibration and deviation, and guarantee operation stability.

[0017] The anti-falling structure of the elevator door can be further provided with a protective plate arranged at the edge of the first sill sliding groove and the second sill sliding groove.

[0018] By adopting the technical scheme, the protective plate smoothly covers the edge of the sliding rail groove opening, effectively blocks debris and foreign matters from entering the guide rail groove, avoids door leaf blocking failure, eliminates sharp corners between the sill and the ground, significantly reduces the risk of passengers being tripped or scratched, guarantees smooth passing of wheelchairs and suitcases, disperses external force impact, enhances sill durability, and can be matched with the door leaf sealing strip to improve elevator car sealing, and reduce dust invasion.

[0019] The utility model discloses the beneficial effect is:

[0020] First, the anti-falling bolt arranged in a staggered manner disperses the oblique impact load and forms multiple limiting points to avoid single point failure, and the width of the door guide groove is slightly larger than that of the sill sliding groove, so that the anti-falling step is formed at the connection between the door guide groove and the sill sliding groove, the anti-falling bolt slides in the door guide groove and is linked with the anti-falling step, when the door plate is subjected to abnormal transverse force, the bolt body abuts against the vertical surface of the anti-falling step, and the anti-falling step utilizes the shear resistance to prevent the sliding guide shoe from falling off, in addition, since the anti-falling bolt is riveted on the sliding guide shoe, when the anti-falling bolt is worn, the guide shoe does not need to be disassembled as a whole, the anti-derailing reliability of the elevator door and the sill is improved, and the maintenance convenience is improved;

[0021] Second, the bending piece and the installation gap realize quick disassembly and assembly of the sliding guide shoe, the door plate does not need to be lifted, and the split lower head strengthens the connection stability of the guide shoe through the hinge bolt and the fastening gasket, and can effectively isolate dust invasion;

[0022] Third, the sill is provided with two door guide grooves and a sill sliding groove, can be applied to various different scenes, the pressure cavity between the first sill sliding groove and the second sill sliding groove can disperse the load of the sill on the elevator door, reduce friction vibration, cooperate with the fixed groove to enhance the pressure bearing capacity of the sill, in addition, the protective plates on both sides of the sill cover the edges of the sliding grooves, can block foreign matter from being stuck, eliminate the hidden danger of edges and corners, and ensure the safety of passing.

[0023] The utility model will be further explained in detail in connection with the drawings and embodiments. DRAWINGS

[0024] Figure 1 It is the whole structure schematic diagram of the utility model;

[0025] Figure 2 It is the cooperation schematic diagram of the sliding guide shoe and the sill of the utility model;

[0026] Figure 3 It is the split schematic diagram of the anti-falling structure of the utility model;

[0027] Figure 4 It is the split schematic diagram of the part structure of the sliding guide shoe of the utility model;

[0028] Figure 5 It is the cross section schematic diagram of the sill of the utility model;

[0029] Figure 6 It is the split schematic diagram of the part structure of the door plate of the utility model;

[0030] Label notes: door panel 1, bending piece 11, mounting gap 12, lower head 13, fixed plate 131, mounting plate 132, positioning plate 133, hinge hole 134, sliding guide shoe 2, sliding block shoe lining 21, anti-off bolt 22, hinge bolt 23, gasket 24, hinge sleeve 25, sill 3, first door guide groove 31, first sill sliding groove 32, first anti-off step 33, second door guide groove 34, second sill sliding groove 35, second anti-off step 36, pressure cavity 37, fixed groove 38, protective plate 39. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0032] As Figures 1 to 6 shown in a kind of elevator door anti-off structure, including elevator door panel 1, with the sliding guide shoe 2 of elevator door fixed connection and the sill 3 of linkage with sliding guide shoe 2, sill 3 is equipped with first door guide groove 31, first door guide groove 31 upper intercommunication has first sill sliding groove 32, first sill sliding groove 32 and first door guide groove 31 connection place forms first anti-off step 33, sliding guide shoe 2 is fixed with the sliding block shoe lining 21 of linkage with first sill sliding groove 32 at first sill sliding groove 32, sliding guide shoe 2 is equipped with several interval settings prevent sliding guide shoe 2 from the anti-off bolt 22 of door guide groove, anti-off bolt 22 one end with sliding guide shoe 2 riveting, the other end is arranged in first sill sliding groove 32 and can be linked with first anti-off step 33. Anti-off bolt 22 is freely slid in first door guide groove 32 when door panel 1 normal operation, when door panel 1 is subjected to abnormal transverse force, anti-off bolt 22 will abut first anti-off step 33 vertical surface, prevent sliding guide shoe 2 from door guide groove by the shear resistance of bolt body, in addition riveted anti-off bolt 22 is convenient to replace individually, after wearing, without replacing guide shoe as a whole, only need to replace anti-off bolt 22 can realize high efficient and stable elevator door anti-off capacity again, both ensure the safety of elevator door and simplify elevator door structure, and sliding block shoe lining 21 and the inner wall of first sill sliding groove 32 of sill 3 are attached, door panel 1 will not appear shaking in the process of elevator opening and closing, the stability of door panel 1 is further improved, simultaneously can prevent foreign matter from falling into sill 3 between the gap between sliding block shoe lining and first sill sliding groove 32 in the process of opening and closing.

[0033] The adjacent anti-falling bolts 22 are arranged in a staggered manner to avoid force concentration and provide uniform anti-falling support when the elevator door is subjected to oblique impact. When the elevator door is subjected to oblique impact, the multiple staggered anti-falling bolts 22 can form multiple levels of limiting points, effectively dispersing the load and preventing single-point failure, thereby improving the reliability of the overall structure. In addition, the dust and garbage that fall into the first door guide groove 31 can be cleaned, preventing the accumulation of dust and garbage from causing operation jamming. Furthermore, the door panel 1 is provided with a bending piece 11 on both sides, and an installation gap 12 is formed at the bottom of the bending piece 11. The installation and removal of the sliding shoe 2 can be achieved without lifting the door panel 1, which not only isolates and protects the interior of the door panel 1 but also simplifies the operation of installing the elevator door, thereby improving the convenience of elevator installation.

[0034] The door panel 1 is provided with a lower head 13, which is divided into a fixed plate 131, an installation plate 132 for installing the sliding shoe 2, and a positioning plate 133 for sealing the elevator door. The end of the sliding shoe 2 is provided with a hinge bolt 23 for hinging with the lower head 13. The lower head 13 is provided with a plurality of hinge holes 134 linked with the hinge bolt 23. A fastening washer 24 is arranged between the hinge bolt 23 and the sliding shoe 2. The hinge bolt 23 is linked with a hinge sleeve 25. The fixed plate 131 is used to connect with the main body of the door panel 1. The installation plate 132 concentrates the load of the sliding shoe 2 and related anti-falling mechanisms. The positioning plate 133 ensures the overall sealing of the elevator door, reducing the process of installing and adjusting the elevator door. The hinge hole 134 is formed on the positioning plate 133. The washer 24 is sleeved on the hinge bolt 23 and the hinge bolt 23 is inserted into the hinge hole 134, which can provide stable support when the sliding shoe 2 is installed, preventing the sliding shoe 2 from deviating. Then the hinge sleeve 25 is sleeved on the end of the hinge bolt 23, improving the stability of the connection between the door panel 1 and the sliding shoe 2. In addition, the installation plate 132 and the positioning plate 133 can effectively block dust from entering the sill sliding groove, reducing the wear of the sliding shoe 2.

[0035] The sill 3 is also provided with a second door guide groove 34, which is connected with a second sill sliding groove 35. The connection between the second door guide groove 34 and the second sill sliding groove 35 forms a second anti-falling step 36. The first door guide groove 31 and the second door guide groove 34 are provided with a pressure cavity 37. The sill 3 is provided with a fixed groove 38 at the bottom of the pressure cavity 37. The double-groove structure supports the independent and smooth movement of the center-hinged door or the side-hinged door, ensuring that the door leaves open and close synchronously without interfering with each other. The first door guide groove 31 and the second door guide groove 34 work together to disperse the door load, reduce the friction loss between the sliding shoe 2 and the sill 3, and effectively suppress vibration and deviation, ensuring stable operation. At the same time, the first sill sliding groove 32 and the second sill sliding groove 35 form a redundant protection against falling off the track. Even if one side of the sliding shoe 2 is abnormal, the other side can still maintain normal guidance, reducing the risk of sudden failure. In addition, the horizontal arrangement of the first door guide groove 31 and the second door guide groove 34 facilitates the cleaning and maintenance of the two grooves, effectively reducing the problem of foreign object jamming in the elevator, and adapting to high-speed operation and complex environments.

[0036] The threshold 3 is provided with a protective plate 39 at the edge of the first threshold sliding groove 32 and the second threshold sliding groove 35. The protective plate 39 effectively prevents debris and foreign matters from entering the guide rail groove by smoothly covering the edge of the sliding rail groove opening, avoids the door leaf blocking failure, eliminates the sharp edges between the threshold 3 and the ground, can significantly reduce the risk of passengers being tripped or scratched, can guarantee the smooth passing of the wheelchair and the luggage box, can disperse external force impact, can enhance the durability of the threshold 3, can cooperate with the door leaf sealing strip to improve the air tightness of the elevator car, and can reduce dust invasion.

[0037] The above-described embodiments only express several implementation manners of the present application, the description is relatively specific and detailed, but it cannot be understood as the limitation of the scope of the application patent. It should be pointed out that, for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. An elevator door anti-derailment structure, comprising an elevator door panel, a sliding guide shoe fixedly connected to the elevator door, and a sill linked to the sliding guide shoe, characterized in that: The sill is provided with a first door guide groove, and a first sill slide groove is connected above the first door guide groove. A first anti-detachment step is formed at the connection between the first sill slide groove and the first door guide groove. A sliding guide shoe is fixed at the first sill slide groove and is linked with the first sill slide groove. The sliding guide shoe is provided with a number of anti-detachment bolts at intervals at one end away from the door panel to prevent the sliding guide shoe from detaching from the door guide groove. One end of the anti-detachment bolt is riveted to the sliding guide shoe, and the other end passes through the first sill slide groove and can be linked with the first anti-detachment step.

2. The elevator door anti-derailment structure according to claim 1, characterized in that: Any two adjacent anti-loosening bolts are staggered, and the door panel has bending pieces on both sides, with an installation notch at the bottom of the bending pieces.

3. The elevator door anti-derailment structure according to claim 2, characterized in that: The door panel is provided with a lower end cap, which is divided into a fixed plate, an mounting plate for installing a sliding guide shoe, and a positioning plate for closing the elevator door. The end of the sliding guide shoe is provided with a hinge bolt for hinged to the lower end cap. The mounting plate is provided with several hinge holes that are linked to the hinge bolts. A fastening gasket is provided between the hinge bolt and the sliding guide shoe. The hinge bolt is linked to a hinge sleeve.

4. The elevator door anti-derailment structure according to any one of claims 1 to 3, characterized in that: The sill is also provided with a second door guide groove, which is connected to a second sill slide groove. The connection between the second sill slide groove and the second door guide groove forms a second anti-detachment step. A pressure chamber is provided between the first door guide groove and the second door guide groove, and a fixing groove is provided at the bottom of the pressure chamber of the sill.

5. The elevator door anti-derailment structure according to claim 4, characterized in that: The sill is equipped with protective plates at the edges of the first sill groove and the second sill groove.

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