Compact type center opening door machine structure

Abstract

The utility model discloses a compact type center opening door machine structure. Comprising a door machine bottom plate, a first door hanging plate, a second door hanging plate and a door knife assembly, wherein the first door hanging plate and the second door hanging plate are arranged at the front end of the door machine bottom plate, can horizontally slide along the door machine bottom plate and are used for hanging a car door; the driving mechanism is arranged at the rear end of the door machine bottom plate and used for driving the first door hanging plate and the second door hanging plate to get close to each other or get away from each other in the horizontal sliding direction; the door knife assembly comprises a door knife bottom plate which is fixed to the first door hanging plate and can move synchronously along with the first door hanging plate, a first door knife movably connected to the door knife bottom plate, and a second door knife fixedly connected to the door knife bottom plate. The first door knife can be close to or away from the second door knife. According to the utility model, the driving mechanism is hidden at the rear end of the door machine bottom plate, so that the whole structure is more compact, the appearance of the product is more attractive, and the operation is safer.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to a compact center-split door machine structure. Background Art

[0002] Current standard center-opening door operator systems are large, requiring high hoistway space requirements for compact home and villa elevators. Traditional elevator door operator systems fail to conceal their transmission mechanisms, significantly impacting the aesthetics of home and villa elevators, particularly those with sightseeing elevators and transparent glass hoistways. Traditional elevator door systems often utilize 220V high-voltage motors, which pose operational risks. Utility Model Content

[0003] (1) Technical issues to be resolved

[0004] The technical problem to be solved by the utility model is to provide a compact center-opening door machine structure, in which the driving mechanism is hidden at the rear end of the door machine bottom plate, the overall structure is more compact, the product appearance is more beautiful, and the operation is safer.

[0005] (2) Technical solution

[0006] The solution adopted by the present invention to solve the above-mentioned technical problems is a compact center-split door machine structure, including a door machine base plate, a first door hanging plate and a second door hanging plate for hanging a car door, which are arranged at the front end of the door machine base plate and can slide horizontally along the door machine base plate, a door knife assembly connected to the front end of the door hanging plate, and a driving mechanism arranged at the rear end of the door machine base plate for driving the first door hanging plate and the second door hanging plate to move closer to or away from each other along the horizontal sliding direction; the door knife assembly includes a door knife base plate fixed on the first door hanging plate and capable of synchronous movement with the first door hanging plate, a first door knife movably connected to the door knife base plate, and a second door knife fixedly connected to the door knife base plate; the first door knife can move closer to or away from the second door knife.

[0007] Specifically, both ends of the door machine bottom plate in the horizontal direction are provided with side reinforcement plates for strengthening the structural strength of the door machine bottom plate and the movement positions of the first door hanging plate and the second door hanging plate.

[0008] By adopting the above solution, the driving mechanism is hidden at the rear end of the door machine bottom plate, the overall structure is more compact, the product appearance is more beautiful, and the operation is safer.

[0009] In some embodiments, the driving mechanism includes a driving motor and a synchronous belt mechanism connected to the driving motor power; the synchronous belt mechanism includes an active pulley assembly and a passive pulley assembly arranged along the horizontal direction of the door machine bottom plate, and a synchronous belt connected between the active pulley assembly and the passive pulley assembly; wherein, the active pulley assembly is connected to the output end of the driving motor; and; the rear end of the first door hanging plate is fixed with a first boom assembly connected to the low belt of the synchronous belt, and the rear end of the second door hanging plate is fixed with a second boom assembly connected to the high belt of the synchronous belt; and the door machine bottom plate is provided with a first slot and a second slot arranged at intervals along its horizontal direction, the first boom assembly can pass through the first slot and make horizontal sliding motion along the first slot; the second boom assembly can pass through the second slot and make horizontal sliding motion along the second slot.

[0010] Specifically, the first boom assembly includes a first fixed plate fixedly connected to the rear end of the first door hanging plate, and a first belt clamp fixedly connected to the top end of the first fixed plate for clamping the synchronous belt, so that the first boom assembly can move synchronously with the synchronous belt; the second boom assembly includes a second fixed plate fixedly connected to the rear end of the second door hanging plate, and a second belt clamp fixedly connected to the top end of the second fixed plate for clamping the synchronous belt, so that the second boom assembly can move synchronously with the synchronous belt; and, since the first boom assembly and the second boom assembly are respectively fixed on the high and low belts of the synchronous belt, after the driving motor drives the synchronous belt to rotate, it will drive the first boom assembly and the second boom assembly to move toward or away from each other, thereby driving the first door hanging plate and the second door hanging plate toward or away from each other, thereby closing or opening the car door.

[0011] By adopting the above solution, the synchronous belt mechanism, the first boom assembly and the second boom assembly are hidden at the rear end of the door machine bottom plate, the overall structure is more compact, the product appearance is more beautiful, and the operation is safer.

[0012] In some embodiments, the upper half of the door machine base plate at its rear end is recessed inward to form a receiving groove for the synchronous belt mechanism, and the receiving groove is arranged along the horizontal direction of the door machine base plate; the first slot and the second slot are provided on the bottom wall of the receiving groove; and the lower half of the door machine base plate at its front end is recessed inward to form a guide rail, and the guide rail is arranged along the horizontal direction of the door machine base plate; the first door hanging plate and the second door hanging plate are slidably connected in the guide rail through hanging plate rollers.

[0013] Specifically, the hanging plate rollers are fixed to the first door hanging plate and the second door hanging plate through pins; after the driving mechanism is operated, the first door hanging plate and the second door hanging plate are driven to slide along the guide rail.

[0014] In some embodiments, a reinforcing plate is provided in the middle of the guide rail, and the reinforcing plate divides the guide rail into two parts, left and right, respectively used to adapt to the first door hanging plate and the second door hanging plate; and, the bottom end of the reinforcing plate is located at the left and right ends respectively provided with limit switches, and the first door hanging plate and the second door hanging plate are respectively provided with pin assemblies that cooperate with the two limit switches; and, when the driving motor rotates forward and drives the first door hanging plate and the second door hanging plate to approach each other along the guide rail until the two pin assemblies are respectively inserted into the two limit switches, the car door is completely closed.

[0015] By adopting the above scheme, the reinforcing plate can strengthen the strength of the door machine bottom plate; and a limit switch is set on the reinforcing plate, which can accurately judge the movement of the first door hanging plate and the second door hanging plate, and through the cooperation of the pin assembly and the limit switch on the first door hanging plate and the second door hanging plate, it can be accurately judged whether the car door is closed in place, which is safer.

[0016] In some embodiments, the first slot and the second slot have the same size in the horizontal direction of the door machine bottom plate; and, when the drive motor rotates forward and drives the first boom assembly and the second boom assembly to approach each other until they respectively abut against the walls that are close to the first slot and the second slot, the car door is completely closed; when the drive motor rotates reversely and drives the first boom assembly and the second boom assembly to move away from each other until they respectively abut against the walls that are far away from the first slot and the second slot, the car door is completely opened.

[0017] In some embodiments, a reduction gear assembly is connected to the output end of the driving motor, and the output end of the reduction gear assembly is connected to the active pulley assembly.

[0018] By adopting the above solution, the drive motor and the reduction gear assembly are concealedly installed at the rear end of the door machine bottom plate, the overall structure is more compact, the product appearance is more beautiful, and the operation is safer.

[0019] In some embodiments, a controller baffle is fixed to the top of the door machine base plate, and a controller is fixed to the rear end of the controller baffle; arranging the controller at the top of the door machine base plate makes the overall structure of the compact door machine more coordinated and facilitates product installation and debugging; and, assembling the controller and the controller baffle together can reduce costs and make the overall structure more coordinated.

[0020] Specifically, the controller provides power and control information for the drive motor to move; when the controller issues an instruction, the drive motor rotates forward and reverse, and the synchronous belt moves at the same time. The synchronous belt will drive the first boom assembly and the second boom assembly to move left and right, and finally realize the left and right movement of the first door hanging plate and the second door hanging plate, thereby realizing the opening and closing action of the elevator door system.

[0021] In some embodiments, the first door knife is movably connected to the door knife base plate through a door knife connecting rod assembly; and the first door knife can move up and down with the door knife connecting rod assembly to approach or move away from the second door knife.

[0022] In some embodiments, a door knife unlocking plate is provided at the top of the door machine base plate, and the door knife unlocking plate has an inclined end surface inclined along the horizontal direction of the door machine base plate; a door knife roller capable of rolling along the inclined end surface is provided at the top of the first door knife; and the first door knife is relatively connected to the side of the door knife connecting rod assembly close to the second door knife; when the door knife base plate moves back and forth along the horizontal direction of the door machine base plate, the door knife roller can roll back and forth along the inclined end surface, so that the first door knife moves up and down, and under the action of the door knife connecting rod assembly, the first door knife is moved close to or away from the second door knife.

[0023] Specifically, the inclined end surface is inclined upward along the horizontal direction of the door machine bottom plate toward the side close to the second door blade.

[0024] In some embodiments, the door knife link assembly includes a first door knife link and a second door knife link, one end of the first door knife link is rotatably connected to the top end of the door knife base plate, and the other end is rotatably connected to the top end of the first door knife; one end of the second door knife link is rotatably connected to the bottom end of the door knife base plate, and the other end is rotatably connected to the bottom end of the first door knife; and when the door knife base plate moves along the horizontal direction of the door machine base plate toward the direction away from the second door hanging plate, the first door knife moves relatively downward, and the first door knife link and the second door knife link rotate clockwise so that the first door knife is relatively close to the second door knife; when the door knife base plate moves along the horizontal direction of the door machine base plate toward the direction close to the second door hanging plate, the first door knife moves relatively upward, and the first door knife link and the second door knife link rotate counterclockwise so that the first door knife is relatively away from the second door knife.

[0025] In some embodiments, a spring is connected between the first door knife link and the door knife base plate, and the spring can give the first door knife link a tendency to always move downward; when the door knife base plate moves back and forth along the horizontal direction of the door machine base plate, the door knife roller can roll back and forth along the inclined end surface, so that the first door knife moves up and down, and, in the process of the first door knife being driven to move upward, the first door knife link and the second door knife link rotate counterclockwise, and the spring is stretched, so that the first door knife moves away from the second door knife; in the process of the first door knife being driven to move downward, the first door knife link and the second door knife link rotate clockwise, and the first door knife link moves downward under the pull of the spring, and at the same time moves downward under the action of the self-weight of the first door knife link and the second door knife link, so that the first door knife approaches the second door knife.

[0026] Specifically, the second door knife is arranged on one side close to the second door hanging plate; the first door knife connecting rod and the second door knife connecting rod form a four-bar structure, which can realize the left and right movement and up and down movement of the first door knife of the door knife assembly; and, when the first door hanging plate moves left and right, the door knife roller is blocked by the door knife unlocking plate fixed on the door machine and rolls, thereby moving the first door knife of the door knife assembly left and right, realizing the movement of opening and closing the door knife.

[0027] The working principle of the present utility model is as follows: when a door closing signal is received, the driving motor rotates forward to drag the synchronous belt, and the synchronous belt drives the first boom assembly and the second boom assembly to approach each other, and drives the first door hanging plate and the second door hanging plate to approach each other, and drives the first door knife to move upward and away from the second door knife, so that the distance between the two is increased from 46 mm to 71 mm, and the plug assembly of the first door hanging plate and the second door hanging plate is inserted into the limit switch of the reinforcement plate, and a door closing instruction is issued at this time; when a door opening signal is received, the driving motor rotates reversely to drag the synchronous belt, and the synchronous belt drives the first boom assembly and the second boom assembly to move away from each other, and drives the first door hanging plate and the second door hanging plate to move away from each other, and drives the first door knife to move downward and approach the second door knife under the action of the spring and gravity, so that the distance between the two is reduced from 71 mm to 46 mm, and a door opening instruction is issued at this time.

[0028] (3) Beneficial effects

[0029] Compared with the existing technology, the utility model designs a compact center-opening door machine structure.

[0030] (1) The utility model hides the drive motor and the reduction gear assembly at the rear end of the door machine bottom plate, making the overall structure more compact, the product appearance more beautiful, and the operation safer;

[0031] (2) The utility model hides the synchronous belt mechanism, the first boom assembly and the second boom assembly at the rear end of the door machine bottom plate, making the overall structure more compact, the product appearance more beautiful and the operation safer;

[0032] (3) The reinforcing plate of the present invention can strengthen the strength of the door machine bottom plate; and a limit switch is provided on the reinforcing plate, which can accurately judge the movement of the first door hanging plate and the second door hanging plate, and through the cooperation of the pin assembly on the first door hanging plate and the second door hanging plate and the limit switch, it can be accurately judged whether the car door is closed in place, which is safer;

[0033] (4) The first door knife connecting rod and the second door knife connecting rod of the utility model form a four-link structure, which can realize the left and right movement and up and down movement of the first door knife of the door knife assembly; and, when the first door hanging plate moves left and right, the door knife roller is blocked by the door knife unlocking plate fixed on the door machine and rolls, thereby moving the first door knife of the door knife assembly left and right, realizing the movement of opening and closing the door knife;

[0034] (5) The utility model arranges the controller at the top of the door machine bottom plate, making the overall structure of the compact door machine more coordinated and convenient for product installation and commissioning; and, assembling the controller and the controller baffle together can reduce costs and make the overall structure more coordinated;

[0035] (6) The controller of the utility model provides power and control information for the drive motor to move; when the controller issues an instruction, the drive motor rotates forward and reverse, and the synchronous belt moves at the same time, which will drive the first boom assembly and the second boom assembly to move left and right, and finally realize the left and right movement of the first door hanging plate and the second door hanging plate, thereby realizing the opening and closing action of the elevator door system. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0037] Figure 1 This is a schematic diagram of a compact center-opening door machine structure of the present invention;

[0038] Figure 2 for Figure 1 A in the middle is an enlarged schematic diagram;

[0039] Figure 3 This is a schematic diagram of a compact center-opening door machine structure according to the present invention from another angle;

[0040] Figure 4 for Figure 3 Enlarged schematic diagram of point B in the middle.

[0041] Component names corresponding to the reference numerals in the figures are: 100, door machine bottom plate; 101, first slot; 102, second slot; 103, receiving slot; 104, guide rail; 105, reinforcement plate; 1051, limit switch; 106, controller baffle; 1061, controller; 107, door knife unlocking plate; 1071, inclined end surface; 108, side reinforcement plate; 200, first door hanging plate; 201, first hanging arm assembly; 2011, first fixing plate; 2012, first belt clip; 300, second door hanging plate; 301, second hanging arm assembly; 3011, second fixed plate; 3012, second belt clamp; 400, door knife assembly; 401, door knife base plate; 402, first door knife; 4021, door knife roller; 403, second door knife; 500, driving mechanism; 501, driving motor; 502, synchronous belt mechanism; 5021, active pulley assembly; 5022, passive pulley assembly; 5023, synchronous belt; 503, reduction gear assembly; 600, hanging plate roller; 700, pin assembly; 800, door knife connecting rod assembly; 801, first door knife connecting rod; 802, second door knife connecting rod. DETAILED DESCRIPTION

[0042] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0043] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0044] The following describes the embodiments of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the features in the following embodiments and embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of this application.

[0045] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on this application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0046] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The illustrations only show components related to the present application and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0047] Additionally, in the following description, specific details are provided to provide a thorough understanding of the examples, however, one skilled in the art will appreciate that the examples can be practiced without these specific details.

[0048] The following describes the technical solutions provided by various embodiments of the present application in conjunction with the accompanying drawings.

[0049] like Figures 1-4As shown, the utility model provides a compact center-split door machine structure, including a door machine base plate 100, a first door hanging plate 200 and a second door hanging plate 300 arranged at the front end of the door machine base plate 100 and capable of sliding horizontally along the door machine base plate 100 for hanging a car door, a door knife assembly 400 connected to the front end of the door hanging plate, and a driving mechanism 500 arranged at the rear end of the door machine base plate 100 for driving the first door hanging plate 200 and the second door hanging plate 300 to move closer to or away from each other along the horizontal sliding direction; the door knife assembly 400 includes a door knife base plate 401 fixed on the first door hanging plate 200 and capable of moving synchronously with the first door hanging plate 200, a first door knife 402 movably connected to the door knife base plate 401, and a second door knife 403 fixedly connected to the door knife base plate 401; the first door knife 402 can approach or move away from the second door knife 403. Specifically, side reinforcement plates 108 are provided at both ends of the door operator base plate 100 in the horizontal direction to strengthen the structural strength of the door operator base plate 100 and to facilitate the movement of the first door hanging plate 200 and the second door hanging plate 300. With this solution, the drive mechanism 500 is hidden at the rear end of the door operator base plate 100, resulting in a more compact overall structure, a more aesthetically pleasing product appearance, and safer operation.

[0050] In some embodiments, the driving mechanism 500 includes a driving motor 501 and a synchronous belt mechanism 502 connected to the driving motor 501; the synchronous belt mechanism 502 includes a driving pulley assembly 5021 and a passive pulley assembly 5022 arranged in the horizontal direction of the door machine bottom plate 100, and a synchronous belt 5023 connected between the driving pulley assembly 5021 and the passive pulley assembly 5022; wherein the driving pulley assembly 5021 is connected to the output end of the driving motor 501; and; the rear end of the first door hanging plate 200 is fixed with a The first boom assembly 201 is connected to the low belt of the synchronous belt 5023, and the rear end of the second door hanging plate 300 is fixed with a second boom assembly 301 connected to the high belt of the synchronous belt 5023; and the door machine bottom plate 100 is provided with first slots 101 and second slots 102 arranged at intervals along its horizontal direction, and the first boom assembly 201 can pass through the first slot 101 and make horizontal sliding movements along the first slot 101; the second boom assembly 301 can pass through the second slot 102 and make horizontal sliding movements along the second slot 102. Specifically, the first boom assembly 201 includes a first fixing plate 2011 fixedly connected to the rear end of the first door hanging plate 200, and a first belt clamp 2012 fixedly connected to the top end of the first fixing plate 2011 for clamping the synchronous belt 5023, so that the first boom assembly 201 can move synchronously with the synchronous belt 5023; the second boom assembly 301 includes a second fixing plate 3011 fixedly connected to the rear end of the second door hanging plate 300, and a first belt clamp 2012 fixedly connected to the top end of the second fixing plate 3011 for clamping the synchronous belt 5023. The second belt clamp 3012 on the synchronous belt 5023 is used to clamp the second boom assembly 301, thereby enabling the second boom assembly 301 to move synchronously with the synchronous belt 5023. Furthermore, since the first boom assembly 201 and the second boom assembly 301 are respectively fixed to the high and low belts of the synchronous belt 5023, when the drive motor 501 is running and drives the synchronous belt 5023 to rotate, it will drive the first boom assembly 201 and the second boom assembly 301 to move toward or away from each other, thereby driving the first door hanging plate 200 and the second door hanging plate 300 to move toward or away from each other, thereby closing or opening the car door. With this solution, the synchronous belt mechanism 502, the first boom assembly 201 and the second boom assembly 301 are hidden at the rear end of the door machine base plate 100, resulting in a more compact overall structure, a more aesthetically pleasing product appearance, and safer operation.

[0051] In some embodiments, the upper portion of the door machine base plate 100 at the rear end thereof is recessed inwardly to form a receiving groove 103 for the synchronous belt mechanism 502, and the receiving groove 103 is arranged horizontally along the door machine base plate 100; the first slot 101 and the second slot 102 are provided on the bottom wall of the receiving groove 103; and the lower portion of the door machine base plate 100 at the front end thereof is recessed inwardly to form a guide rail 104, and the guide rail 104 is arranged horizontally along the door machine base plate 100; the first door hanging plate 200 and the second door hanging plate 300 are slidably connected to the guide rail 104 via hanging plate rollers 600. Specifically, the hanging plate rollers 600 are fixed to the first door hanging plate 200 and the second door hanging plate 300 via pins; when the driving mechanism 500 is operated, the first door hanging plate 200 and the second door hanging plate 300 are driven to slide along the guide rail 104. In some embodiments, a reinforcing plate 105 is provided in the middle of the guide rail 104, and the reinforcing plate 105 divides the guide rail 104 into two parts, left and right, respectively used to adapt to the first door hanging plate 200 and the second door hanging plate 300; and, the bottom end of the reinforcing plate 105 is located at the left and right ends and limit switches 1051 are respectively provided, and the first door hanging plate 200 and the second door hanging plate 300 are respectively provided with pin assemblies 700 that cooperate with the two limit switches 1051; and, when the driving motor 501 rotates forward and drives the first door hanging plate 200 and the second door hanging plate 300 to approach each other along the guide rail 104 until the two pin assemblies 700 are respectively inserted into the two limit switches 1051, the car door is completely closed. By adopting the above solution, the reinforcing plate 105 can strengthen the strength of the door machine base plate 100; and, a limit switch 1051 is provided on the reinforcing plate 105, which can accurately judge the movement of the first door hanging plate 200 and the second door hanging plate 300, and through the cooperation of the pin assembly 700 and the limit switch 1051 on the first door hanging plate 200 and the second door hanging plate 300, it can be accurately judged whether the car door is closed in place, which is safer.

[0052] In some embodiments, the first slot 101 and the second slot 102 have the same size in the horizontal direction of the door machine base plate 100; and, when the drive motor 501 rotates forward and drives the first boom assembly 201 and the second boom assembly 301 to approach each other until they respectively abut against the walls that are close to the first slot 101 and the second slot 102, the car door is completely closed; when the drive motor 501 rotates reversely and drives the first boom assembly 201 and the second boom assembly 301 to move away from each other until they respectively abut against the walls that are far away from the first slot 101 and the second slot 102, the car door is completely opened.

[0053] In some embodiments, the output end of the drive motor 501 is connected to a reduction gear assembly 503, and the output end of the reduction gear assembly 503 is connected to the active pulley assembly 5021. By adopting the above solution, the drive motor 501 and the reduction gear assembly 503 are concealedly installed at the rear end of the door machine base plate 100, and the overall structure is more compact, the product appearance is more beautiful, and the operation is safer. In some embodiments, a controller baffle 106 is fixed to the top of the door machine base plate 100, and a controller 1061 is fixed to the rear end of the controller baffle 106; arranging the controller 1061 at the top of the door machine base plate 100 makes the overall structure of the compact door machine more coordinated and facilitates product installation and debugging; and assembling the controller 1061 and the controller baffle 106 together can reduce costs and make the overall structure more coordinated. Specifically, the controller 1061 provides power and control information for the movement of the drive motor 501; when the controller 1061 issues an instruction, the drive motor 501 rotates forward and reverse, and the synchronous belt 5023 moves at the same time. The synchronous belt 5023 will drive the first boom assembly 201 and the second boom assembly 301 to move left and right, and finally realize the left and right movement of the first door hanging plate 200 and the second door hanging plate 300, thereby realizing the opening and closing actions of the elevator door system.

[0054] In some embodiments, the first door knife 402 is movably connected to the door knife base plate 401 through a door knife connecting rod assembly 800; and the first door knife 402 can move up and down with the door knife connecting rod assembly 800 to approach or move away from the second door knife 403. In some embodiments, a door blade unlocking plate 107 is provided at the top of the door machine base plate 100. The door blade unlocking plate 107 has an inclined end surface 1071 that is inclined along the horizontal direction of the door machine base plate 100. A door blade roller 4021 that can roll along the inclined end surface 1071 is provided at the top of the first door blade 402. Furthermore, the first door blade 402 is relatively connected to the door blade linkage assembly 800 on a side near the second door blade 403. When the door blade base plate 401 moves back and forth along the horizontal direction of the door machine base plate 100, the door blade roller 4021 can roll back and forth along the inclined end surface 1071, causing the first door blade 402 to move up and down. Under the action of the door blade linkage assembly 800, the first door blade 402 is moved closer to or away from the second door blade 403. Specifically, the inclined end surface 1071 is inclined upward along the horizontal direction of the door machine base plate 100 toward the side near the second door blade 403. In some embodiments, the door knife link assembly 800 includes a first door knife link 801 and a second door knife link 802, one end of the first door knife link 801 is rotatably connected to the top of the door knife base plate 401, and the other end is rotatably connected to the top of the first door knife 402; one end of the second door knife link 802 is rotatably connected to the bottom end of the door knife base plate 401, and the other end is rotatably connected to the bottom end of the first door knife 402; and, when the door knife base plate 401 is in the horizontal direction along the door machine base plate 100 in the direction away from the second door hanging plate 300, During movement, the first door knife 402 moves relatively downward, and the first door knife connecting rod 801 and the second door knife connecting rod 802 rotate clockwise, so that the first door knife 402 is relatively close to the second door knife 403; when the door knife base plate 401 moves along the horizontal direction of the door machine base plate 100 toward the direction close to the second door hanging plate 300, the first door knife 402 moves relatively upward, and the first door knife connecting rod 801 and the second door knife connecting rod 802 rotate counterclockwise, so that the first door knife 402 is relatively away from the second door knife 403.In some embodiments, a spring (not shown in the figure) is connected between the first door knife link 801 and the door knife base plate 401, and the spring can give the first door knife link 801 a tendency to always move downward; when the door knife base plate 401 moves back and forth in the horizontal direction of the door machine base plate 100, the door knife roller 4021 can roll back and forth along the inclined end surface 1071, so that the first door knife 402 moves up and down, and when the first door knife 402 is driven to move upward, the first door knife link 801 is rotated. The rod 801 and the second door knife link 802 rotate counterclockwise, and the spring is stretched, so that the first door knife 402 moves away from the second door knife 403; in the process of the first door knife 402 being driven to move downward, the first door knife link 801 and the second door knife link 802 rotate clockwise, and the first door knife link 801 moves downward under the pull of the spring, and at the same time moves downward under the action of the first door knife link 801 and the second door knife link 802's own gravity, so that the first door knife 402 approaches the second door knife 403. Specifically, the second door knife 403 is arranged near one side of the second door hanging plate 300; the first door knife link 801 and the second door knife link 802 form a four-link structure, which can realize the left and right movement and up and down movement of the first door knife 402 of the door knife assembly 400; and, when the first door hanging plate 200 moves left and right, the door knife roller 4021 is blocked by the door knife unlocking plate 107 fixed on the door machine and rolls, thereby moving the first door knife 402 of the door knife assembly 400 left and right, realizing the movement of opening and closing the door knife.

[0055] The working principle of the utility model is as follows: when receiving the door closing signal, the driving motor 501 rotates forward to drag the synchronous belt 5023, and the synchronous belt 5023 drives the first hanging arm assembly 201 and the second hanging arm assembly 301 to move closer to each other, and drives the first door hanging plate 200 and the second door hanging plate 300 to move closer to each other, and drives the first door blade 402 to move upward and away from the second door blade 403, so that the distance between the two increases from 46 mm to 71 mm, and the plug assembly of the first door hanging plate 200 and the second door hanging plate 300 is inserted into the reinforcing plate 10 5, and at this time, a door closing instruction is issued; when a door opening signal is received, the drive motor 501 reverses and drags the synchronous belt 5023, and the synchronous belt 5023 drives the first boom assembly 201 and the second boom assembly 301 to move away from each other, and drives the first door hanging plate 200 and the second door hanging plate 300 to move away from each other, and drives the first door blade 402 to move downward under the action of the spring and gravity and approach the second door blade 403, so that the distance between the two is reduced from 71 mm to 46 mm, and at this time, a door opening instruction is issued.

[0056] The same or similar parts between the various embodiments in this specification can be referred to each other, and each embodiment focuses on the differences from other embodiments.

[0057] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A compact center-opening door machine structure, characterized by: The invention comprises a door machine base plate (100), a first door hanging plate (200) and a second door hanging plate (300) for hanging a car door, which are arranged at the front end of the door machine base plate (100) and can slide horizontally along the door machine base plate (100), a door knife assembly (400) connected to the front end of the door hanging plate, and a driving mechanism (500) arranged at the rear end of the door machine base plate (100) for driving the first door hanging plate (200) and the second door hanging plate (300) to move closer to or away from each other along the horizontal sliding direction; the door knife assembly (400) comprises a door knife base plate (401) fixed to the first door hanging plate (200) and capable of moving synchronously with the first door hanging plate (200), a first door knife (402) movably connected to the door knife base plate (401), and a second door knife (403) fixedly connected to the door knife base plate (401); the first door knife (402) can move closer to or away from the second door knife (403).

2. The compact center-opening door machine structure according to claim 1, characterized in that: The driving mechanism (500) comprises a driving motor (501) and a synchronous belt mechanism (502) connected to the driving motor (501) in a power-connected manner; the synchronous belt mechanism (502) comprises a driving pulley assembly (5021) and a driven pulley assembly (5022) arranged in a horizontal direction along the door machine bottom plate (100), and a synchronous belt (5023) connected between the driving pulley assembly (5021) and the driven pulley assembly (5022); wherein the driving pulley assembly (5021) is connected to the output end of the driving motor (501); and the rear end of the first door hanging plate (200) is fixed with a synchronous belt mechanism (5023) connected to the driving pulley assembly (5021). A first boom assembly (201) is connected to the lower belt of the synchronous belt (5023), and a second boom assembly (301) is fixed to the rear end of the second door hanging plate (300) and is connected to the upper belt of the synchronous belt (5023); and the door machine bottom plate (100) is provided with first slots (101) and second slots (102) arranged at intervals along its horizontal direction, and the first boom assembly (201) can pass through the first slot (101) and perform horizontal sliding movement along the first slot (101); and the second boom assembly (301) can pass through the second slot (102) and perform horizontal sliding movement along the second slot (102).

3. The compact center-opening door machine structure according to claim 2, characterized in that: The upper half of the door machine bottom plate (100) at the rear end thereof is recessed inwardly to form a receiving groove (103) for the synchronous belt mechanism (502), and the receiving groove (103) is arranged along the horizontal direction of the door machine bottom plate (100); the first slot (101) and the second slot (102) are provided on the bottom wall of the receiving groove (103); and the lower half of the door machine bottom plate (100) at the front end thereof is recessed inwardly to form a guide rail (104), and the guide rail (104) is arranged along the horizontal direction of the door machine bottom plate (100); the first door hanging plate (200) and the second door hanging plate (300) are slidably connected in the guide rail (104) via hanging plate rollers (600).

4. The compact center-opening door machine structure according to claim 3 is characterized in that: The guide rail (104) is provided with a reinforcing plate (105) at its middle, and the reinforcing plate (105) divides the guide rail (104) into two left and right parts, respectively used to adapt to the first door hanging plate (200) and the second door hanging plate (300); and the bottom end of the reinforcing plate (105) is provided with limit switches (1051) at the left and right ends, respectively, and the first door hanging plate (200) and the second door hanging plate (300) are respectively provided with pin assemblies (700) that cooperate with the two limit switches (1051); and, when the driving motor (501) rotates forward and drives the first door hanging plate (200) and the second door hanging plate (300) to approach each other along the guide rail (104) until the two pin assemblies (700) are respectively inserted into the two limit switches (1051), the car door is completely closed.

5. The compact center-opening door machine structure according to claim 3 is characterized in that: The first slot (101) and the second slot (102) have the same size in the horizontal direction of the door machine bottom plate (100); and when the driving motor (501) rotates forward and drives the first boom assembly (201) and the second boom assembly (301) to approach each other until they respectively abut against the walls of the first slot (101) and the second slot (102) that are close to each other, the car door is completely closed; when the driving motor (501) rotates reversely and drives the first boom assembly (201) and the second boom assembly (301) to move away from each other until they respectively abut against the walls of the first slot (101) and the second slot (102) that are far away from each other, the car door is completely opened.

6. The compact center-opening door machine structure according to claim 2, characterized in that: The output end of the driving motor (501) is connected to a reduction gear assembly (503), and the output end of the reduction gear assembly (503) is connected to the driving pulley assembly (5021).

7. The compact center-opening door machine structure according to claim 1, characterized in that: A controller baffle (106) is fixed to the top end of the door machine bottom plate (100), and a controller (1061) is fixed to the rear end of the controller baffle (106).

8. The compact center-opening door machine structure according to claim 1, characterized in that: The first door knife (402) is movably connected to the door knife base plate (401) via a door knife connecting rod assembly (800); and the first door knife (402) can move up and down along with the door knife connecting rod assembly (800) to approach or move away from the second door knife (403).

9. The compact center-opening door machine structure according to claim 8, characterized in that: A door knife unlocking plate (107) is provided at the top of the door machine bottom plate (100), and the door knife unlocking plate (107) has an inclined end surface (1071) inclined along the horizontal direction of the door machine bottom plate (100); a door knife roller (4021) capable of rolling along the inclined end surface (1071) is provided at the top of the first door knife (402); and the first door knife (402) is relatively connected to the side of the door knife connecting rod assembly (800) close to the second door knife (403); when the door knife bottom plate (401) moves back and forth along the horizontal direction of the door machine bottom plate (100), the door knife roller (4021) can roll back and forth along the inclined end surface (1071), so that the first door knife (402) moves up and down, and under the action of the door knife connecting rod assembly (800), the first door knife (402) is moved close to or away from the second door knife (403).

10. The compact center-opening door machine structure according to claim 9, characterized in that: The door knife connecting rod assembly (800) includes a first door knife connecting rod (801) and a second door knife connecting rod (802), one end of the first door knife connecting rod (801) is rotatably connected to the top end of the door knife base plate (401), and the other end is rotatably connected to the top end of the first door knife (402); one end of the second door knife connecting rod (802) is rotatably connected to the bottom end of the door knife base plate (401), and the other end is rotatably connected to the bottom end of the first door knife (402); and when the door knife base plate (401) moves in the horizontal direction of the door machine base plate (100) toward a direction away from the second door hanging plate (300), The first door knife (402) moves relatively downward, and the first door knife connecting rod (801) and the second door knife connecting rod (802) rotate clockwise, so that the first door knife (402) is relatively close to the second door knife (403); when the door knife base plate (401) moves along the horizontal direction of the door machine base plate (100) toward the direction close to the second door hanging plate (300), the first door knife (402) moves relatively upward, and the first door knife connecting rod (801) and the second door knife connecting rod (802) rotate counterclockwise, so that the first door knife (402) is relatively far away from the second door knife (403).

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