Elevator door opening device, elevator car and elevator equipment

Abstract

The utility model relates to an elevator door opening device, an elevator car and elevator equipment. The elevator door opening device comprises an upper ridge piece, a door linkage assembly, a door hanging plate assembly and a door knife assembly. The door linkage assembly and the door hanging plate assembly are both arranged on the upper ridge piece. The door hanging plate assembly is used for being installed and matched with the elevator car door assembly, and the door hanging plate assembly is in transmission connection with the door linkage assembly, so that the door hanging plate assembly drives the elevator car door assembly to slide on the upper ridge piece. The abutting part is arranged on the face, close to the upper ridge piece, of the body part in a protruding mode, the abutting part is matched with the door hanging plate assembly in an abutting mode, and the door hanging plate assembly and the body part are arranged in a spaced mode. The door knife assembly is arranged on the face, away from the upper ridge piece, of the main body part and is in transmission connection with the elevator landing door assembly, so that the door linkage assembly drives the elevator landing door to slide relative to the upper ridge piece through the door knife assembly. The main body part and the abutting part are integrally formed. The elevator door opening device is favorable for reducing the thickness of an elevator door opening mechanism.

Description

TECHNICAL FIELD

[0001] The present application relates to the elevator technical field, and particularly relates to an elevator door opening device, an elevator car and an elevator equipment. BACKGROUND

[0002] In the elevator design, the thickness of the elevator door opening mechanism is an important factor affecting the space in the car and the depth of the elevator shaft. Generally, the elevator door opening mechanism is usually composed of a car door sill, a guide rail, a driving assembly, a door blade assembly and a door linkage assembly. A pulley is arranged in the door linkage assembly, which can be guided with the guide rail assembly, so that the door linkage assembly drives the car door to slide on the car door sill.

[0003] In the related art, each component of the elevator door opening mechanism is assembled by separate components, that is, each component is produced separately and connected to each other by screws or other fasteners. For example, the guide rail is stacked on the car door sill to form a guide assembly, and the driving motor is tightly attached to the car door sill, which causes the motor belt and the connecting driving part to be far away from the bottom of the car door sill, thereby increasing the thickness of the door opening mechanism.

[0004] In addition, the related art usually uses a spacer between the door hanging plate assembly and the door blade assembly to separate the door hanging plate assembly and the door blade assembly to avoid scratching and blocking of the door plate assembly to the door blade assembly.

[0005] Therefore, the elevator door opening mechanism in the related art has the problem of not being compact in structure, which not only increases the thickness of the elevator equipment itself, but also increases the occupied depth of the elevator shaft, which is not conducive to space saving. Utility model content

[0006] Therefore, it is necessary to provide an elevator door opening device, an elevator car and an elevator equipment for reducing the thickness of the elevator door opening mechanism.

[0007] An elevator door opening device, the elevator door opening device comprising:

[0008] a sill piece;

[0009] a door linkage assembly arranged on the sill piece;

[0010] a door hanging plate assembly arranged on the sill piece; the door hanging plate assembly is used for mounting and cooperating with an elevator car door assembly, and the door hanging plate assembly is in transmission connection with the door linkage assembly, so that the door hanging plate assembly drives the elevator car door assembly to slide on the sill piece;

[0011] The door stop assembly comprises a door stop bottom plate and a door stop body; the door stop bottom plate is provided with a main body part and an abutting part; the abutting part is protrudingly arranged on one side of the main body part close to the upper sill; the abutting part is abuttingly matched with the door hanging plate assembly, so that the door hanging plate assembly is arranged in a spaced manner with the main body part; the door stop assembly is arranged on the other side of the main body part away from the upper sill; the door stop assembly is drivingly connected with the elevator landing door assembly, so that the door linkage assembly drives the elevator landing door assembly to slide relative to the upper sill; wherein the main body part and the abutting part are integrally formed.

[0012] In one embodiment, the upper sill is provided with a first side and a second side relative to the height direction of the upper sill; the elevator door opening device further comprises a guide rail part, which is integrally formed with the upper sill and arranged close to the second side; the door hanging plate assembly comprises a hanging plate body and a roller assembly; the hanging plate body is abuttingly matched with the abutting part; the roller assembly is arranged on the side of the hanging plate body away from the abutting part; the roller assembly is slidingly matched with the guide rail part.

[0013] In one embodiment, the guide rail part is provided with a first guide rail and a second guide rail; the first guide rail is provided with a third side and a fourth side relative to the thickness direction of the upper sill; the third side is connected with the upper sill; the fourth side is connected with the second guide rail; the wall surface of the first guide rail is in a concave curved surface structure in the direction from the first side to the second side; the wall surface of the second guide rail is in a convex curved surface structure; wherein the wall surface of the roller assembly is limitingly and detachably connected with the convex curved surface structure, so that the roller assembly is slidingly matched with the guide rail part.

[0014] In one embodiment, at least part of the guide rail part is arranged opposite to the elevator car door assembly along the height direction of the upper sill.

[0015] In one embodiment, the elevator door opening device further comprises a bearing bracket; the bearing bracket is provided with a fifth side and a sixth side along the thickness direction of the upper sill; the fifth side is connected with the upper sill, so that the bearing bracket is abuttingly matched with the upper sill.

[0016] In one embodiment, the door linkage assembly comprises a motor, a flexible transmission part and a rotating wheel assembly; the flexible transmission part is arranged around the rotating wheel assembly; the motor is drivingly connected with the rotating wheel assembly, so as to drive the rotating wheel assembly to drive the flexible transmission part to rotate relative to the upper sill; the door hanging plate assembly is connected with the flexible transmission part, so that the flexible transmission part drives the door hanging plate assembly to move.

[0017] In one of the embodiments, the rotating wheel assembly comprises a rotating wheel body and a rotating shaft; the rotating wheel body is drivingly connected with the motor; the rotating wheel body is provided with a first surface and a second surface in opposite directions along the thickness direction of the upper ridge; the second surface is arranged to face the surface of the upper ridge; the rotating shaft is in plug-in cooperation with the rotating wheel body and the sixth side, and the rotating wheel body can rotate relative to the upper ridge and the bearing support through the rotating shaft; one end of the rotating shaft is protruded on the first surface, and the other end is flush with or recessed from the second surface; wherein the bearing support is in abutting cooperation with the first surface.

[0018] An elevator car, characterized in comprising an elevator door assembly, a car body and the elevator door opening device in the above embodiments; the elevator door opening device is used to drive the elevator door assembly to slide on the car body.

[0019] In one of the embodiments, the car body is staggered with the elevator door opening device along the height direction of the upper ridge.

[0020] An elevator equipment, comprising a lifting assembly and the elevator car in the above embodiments, the lifting assembly is drivingly connected with the elevator car to drive the elevator car to move up and down along the height direction.

[0021] The elevator door opening device, the elevator car and the elevator equipment, different from the way of connecting the guide rail and the upper ridge in a split type, the main body part and the abutting part in the application are designed in an integral molding, without the need to set an additional connecting part, so that the door blade assembly and the door hanging plate assembly are more compact in the thickness direction, thereby making the door assembly and the landing door assembly more compact in the thickness direction, and then improving the lightness and thinness of the whole elevator door opening device. Further, since the side of the main body part away from the abutting part is connected with the door blade assembly, and the abutting part is protruded from the main body part, not only the door blade assembly cannot scratch the door hanging plate assembly, but also the main body part avoids scratching the door hanging plate assembly, therefore, the door blade assembly cannot be rubbed by the main body part of the door blade bottom plate and the door hanging plate assembly when moving, thereby improving the smoothness of the movement in the door opening process. In addition, the abutting cooperation of the door hanging plate assembly and the abutting part is beneficial to reducing the gap between the door hanging plate assembly and the bearing plate assembly, thereby further compressing the thickness of the elevator door opening device, and then making the thickness of the elevator shaft not too large. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a front view of the elevator door opening device shown in one of the embodiments.

[0023] Figure 2 It is a front view of the elevator door opening device shown in one of the embodiments. Figure 1 ​

[0024] Figure 3 FIG. 6 is a side view of a door blade assembly shown in an embodiment.

[0025] Figure 4 FIG. 7 is a front view of a door blade base shown in an embodiment.

[0026] Figure 5 FIG. 8 is a schematic view of a mounting structure of a guide rail member on a sill member shown in an embodiment.

[0027] Figure 6 FIG. 9 is a schematic view of a mounting structure of a door hanging plate assembly on a sill member shown in an embodiment.

[0028] Figure 7 FIG. 10 is a schematic view of a mounting structure of a rotating wheel assembly and a sill member shown in an embodiment.

[0029] BRIEF DESCRIPTION OF DRAWINGS

[0030] 100, elevator door opening device; 110, sill member; 111, first side; 112, second side; 120, door linkage assembly; 121, motor; 122, flexible transmission member; 123, rotating wheel assembly; 123a, driving rotating wheel; 123b, driven rotating wheel; 1231, rotating wheel body; 1231a, first face; 1231b, second face; 1232, rotating shaft member; 130, door hanging plate assembly; 131, hanging plate body; 132, roller assembly; 140, door blade assembly; 141, door blade base; 1411, main body portion; 1412, abutting portion; 142, door blade body; 150, guide rail member; 151, first guide rail; 1511, third side; 1512, fourth side; 152, second guide rail; 160, bearing bracket; 161, first bearing member; 162, second bearing member; 163, third bearing member; 200, elevator car door assembly; 210, first car door; 220, second car door; 300, car body; X, height direction; Y, thickness direction. DETAILED DESCRIPTION

[0031] In order to make the above objectives, features and advantages of the present application more clear and comprehensible, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. In the following description, a lot of specific details are set forth in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, and therefore the present application is not limited to the specific embodiments disclosed below.

[0032] The present application provides an elevator device, which comprises an elevator car and a lifting assembly. The lifting assembly is used to be drivingly connected with the elevator car to drive the elevator car to move up and down along a height direction X.

[0033] Combination Figure 1 and Figure 2 As shown, the elevator car includes an elevator door opening device 100, an elevator car door assembly 200, and a car body 300. Specifically, the elevator door opening device 100 includes an upper sill member 110, a door linkage assembly 120, a door hanging plate assembly 130, and a door knife assembly 140.

[0034] The door linkage assembly 120 is mounted on the upper sill 110. The door mounting plate assembly 130 is mounted on the upper sill 110. The door mounting plate assembly 130 is connected to the door linkage assembly 120 in a transmission manner, so that the door mounting plate assembly 130 drives the elevator car door assembly 200 to slide on the upper sill 110.

[0035] like Figures 3-4 As shown, the door knife assembly 140 includes a door knife base plate 141 and a door knife body 142. The door knife base plate 141 has a main body portion 1411 and a supporting portion 1412. The supporting portion 1412 protrudes from the side of the main body portion 1411 away from the upper sill member 110. The supporting portion 1412 abuts against the door hanging plate assembly 130, so that the door hanging plate assembly 130 is spaced apart from the main body portion 1411. The door knife assembly 140 is disposed on the side of the main body portion 1411 away from the upper sill member 110, and the door knife assembly 140 is drive-connected to the elevator landing door assembly, so that the door linkage assembly 120 drives the elevator landing door assembly to slide relative to the upper sill member 110 through the door knife assembly 140. The main body portion 1411 and the supporting portion 1412 are integrally formed.

[0036] Thus, the main body 1411 and the supporting part 1412 adopt an integral molding design, eliminating the need for additional connecting parts. This makes the door knife assembly 140 and the door hanger assembly 130 more compact in the thickness direction Y, resulting in a more compact structure for the car door assembly and landing door assembly in the thickness direction Y, thereby improving the overall thinness and lightness of the elevator door opening device 100. Furthermore, since the side of the main body 1411 away from the supporting part 1412 is connected and cooperated with the door knife assembly 140, and the supporting part 1412 protrudes from the main body 1411, not only is it possible to prevent the door knife assembly 140 from rubbing against the door hanger assembly 130, but it is also possible to prevent the main body 1411 from scratching the door hanger assembly 130. Therefore, the door knife assembly 140 will not experience friction or obstruction with the main body 1411 of the door knife base plate 141 or the door hanger assembly 130 during movement, thereby improving the smoothness of the door opening process. Furthermore, the abutting fit between the door mounting plate assembly 130 and the supporting part 1412 helps to reduce the gap between the door mounting plate assembly 130 and the bearing plate assembly, thereby further compressing the thickness of the elevator door opening device 100, and thus making it unnecessary for the elevator shaft to be too thick.

[0037] In some embodiments, see back Figure 2The upper sill 110 is provided with a first side 111 and a second side 112 relative to the height direction X of the upper sill 110. The elevator door opening device 100 further comprises a guide rail 150 which is integrally formed with the upper sill 110 and is arranged close to the second side 112. The door hanging plate assembly 130 comprises a hanging plate body 131 and a roller assembly 132. The hanging plate body 131 is abuttingly matched with the abutting part 1412, and the roller assembly 132 is arranged on the side of the hanging plate body 131 away from the abutting part 1412. The roller assembly 132 is slidingly matched with the guide rail 150.

[0038] In this way, unlike the guide rail 150 and the upper sill 110 being connected in a split type, the guide rail 150 and the upper sill 110 are integrally formed, so that no additional connecting parts and installation space are needed, the connection space is reduced, and the overall thickness of the elevator door opening device 100 is reduced. Further, the arrangement of the guide rail 150 is conducive to improving the movement stability of the roller assembly 132, thereby improving the movement stability of the door hanging plate assembly 130. In addition, the hanging plate body 131 can be abuttingly matched with the abutting part 1412, so that the hanging plate body 131 can be arranged apart from the main part 1411, so that when the door blade bottom plate 141 moves, the abutting and scraping area between the hanging plate body 131 and the door blade bottom plate 141 will not be too large, and there is a movement space between the hanging plate body 131 and the door blade bottom plate 141, thereby facilitating the cooperation flexibility of the door blade assembly 140 and the door hanging plate assembly 130.

[0039] Further, in one of the embodiments, as shown in Figure 5 and Figure 6 , the guide rail 150 is provided with a first guide rail 151 and a second guide rail 152. The first guide rail 151 is provided with a third side 1511 and a fourth side 1512 relative to the thickness direction Y of the upper sill 110. The third side 1511 is connected with the upper sill 110, and the fourth side 1512 is connected with the second guide rail 152. In the direction from the first side 111 to the second side 112, the wall surface of the first guide rail 151 is in a curved concave structure, and the wall surface of the second guide rail 152 is in a curved convex structure. As shown in Figure 4 , the wall surface of the roller assembly 132 is limitingly and clampingly matched with the curved convex structure, so that the roller assembly 132 is slidingly matched with the guide rail 150.

[0040] Therefore, the wall surface of the first guide rail 151 is designed as a curved concave surface, and the wall surface of the second guide rail 152 is designed as a curved convex surface, so that the cooperation of the guide rail 150 and the roller assembly 132 in the thickness direction Y is more compact, the gap requirement between the guide rail and the roller assembly 132 is reduced, and the thickness of the overall elevator door opening device 100 is further compressed. In addition, the rolling cooperation of the roller assembly 132 on the curved convex surface, and the curved concave structure can provide certain clamping limiting for the side wall of the roller assembly 132, thereby improving the stability of the guided movement of the roller assembly 132 on the guide rail 150.

[0041] In addition, in one of the embodiments, the upper sill 110 is provided with two guide rails 150 in the height direction X, and the door hanging plate assembly 130 is provided with two roller assemblies 132, which are one-to-one guided and matched with the guide rails 150. In this way, on the one hand, the guided area between the door hanging plate assembly 130 and the upper sill 110 can be increased by the respective guided cooperation of the two roller assemblies 132 and the two guide rails 150, thereby improving the stability of the movement of the door hanging plate assembly 130 on the upper sill 110 and reducing the movement resistance. On the other hand, the two roller assemblies 132 are also arranged opposite to each other in the height direction X, so that the door hanging plate assembly 130 can be guided and clamped on the upper sill 110, thereby improving the installation stability of the door hanging plate assembly 130 on the upper sill 110.

[0042] Further, in some embodiments, the guide rail 150 is provided with a plurality of guide grooves 151, and the roller assembly 132 is provided with a plurality of rollers 133, each of which is arranged in the guide groove 151 and is guided and matched with the guide groove 151. Figure 2 In particular, the opposite arrangement means that if the plane on which the top surface of the elevator car door assembly 200 is located is taken as a projection plane, the projection area of at least part of the structure of the guide rail 150 in the height direction X on the projection plane falls on the top surface of the elevator car door assembly 200, that is, from the actual height direction X, the guide rail 150 and the elevator car door assembly 200 are not completely staggered, but partially overlap each other.

[0043] Therefore, the at least part of the guide rail 150 is arranged opposite to the elevator car door assembly 200 in the height direction X of the upper sill 110, so that the guide rail and the elevator car door assembly 200 share part of the space in the thickness direction Y, reduce the occupation of the elevator door opening device 100 in the thickness direction Y, so that the elevator door opening device 100 is more light and thin, thereby facilitating the reduction of the depth of the elevator shaft.

[0044] In one of the embodiments, as shown in Figure 7 the elevator door opening device 100 further comprises a bearing bracket 160. The bearing bracket 160 is provided with a fifth side and a sixth side in the thickness direction Y of the upper sill 110, and the fifth side is connected with the upper sill 110, so that the bearing bracket 160 is in abutting cooperation with the upper sill 110.

[0045] In combination with any of the above embodiments of the door linkage assembly 120, it is found that Figure 1 The door linkage assembly 120 comprises a motor 121, a flexible transmission member 122, and a rotating wheel assembly 123. The flexible transmission member 122 is arranged around the rotating wheel assembly 123. The motor 121 is in driving connection with the rotating wheel assembly 123 to drive the rotating wheel assembly 123 to rotate the flexible transmission member 122 relative to the hoistway 110. The door panel assembly 130 is connected with the flexible transmission member 122 so that the flexible transmission member 122 drives the door panel assembly 130 to move.

[0046] Specifically, in an embodiment, the rotating wheel assembly 123 comprises a driving rotating wheel 123a and a driven rotating wheel 123b. The flexible transmission member 122 is arranged between the driving rotating wheel 123a and the driven rotating wheel 123b. The motor 121 is in driving connection with the driving rotating wheel 123a to drive the driving rotating wheel 123a to rotate, so that the driving rotating wheel 123a drives the flexible transmission member 122 and the driven rotating wheel 123b to rotate.

[0047] In this way, through the transmission mode of the flexible transmission member 122, the flexible transmission member 122 (such as a belt or a chain) is arranged around the rotating wheel assembly 123. Since the flexible transmission member 122 has good elasticity and impact resistance, it can effectively absorb the instantaneous impact when the motor 121 starts and stops, so that the movement of the door panel assembly 130 and the elevator door assembly 200 is more stable.

[0048] Further, in an embodiment, the rotating wheel assembly 123 comprises a rotating wheel body 1231 and a rotating shaft member 1232. The rotating wheel body 1231 is in driving connection with the motor 121. The rotating wheel body 1231 is provided with a first face 1231a and a second face 1231b opposite to each other along the thickness direction Y of the hoistway 110. The second face 1231b is arranged to face the surface of the hoistway 110. The rotating shaft member 1232 is in plug-in connection with the rotating wheel body 1231 and the sixth side, and the rotating wheel body 1231 can rotate relative to the hoistway 110 and the bearing bracket 160 through the rotating shaft member 1232. One end of the rotating shaft member 1232 protrudes from the first face 1231a, and the other end is flush with or recessed from the second face 1231b. The bearing bracket 160 is in abutting connection with the first face 1231a.

[0049] It can be understood that in the related art, the installation of the rotating wheel body 1231 is to first fix the rotating wheel body 1231 on the bearing bracket 160 through the rotating shaft 1232, and then install the bearing bracket 160 on the upper sill 110. At this time, the rotating shaft 1232 in the related art is provided on the second surface 1231b, which causes a large installation gap between the upper sill 110 and the rotating wheel body 1231 in the actual installation process to accommodate the protruding part of the rotating shaft 1232, resulting in an increase in the thickness of the elevator door opening device 100.

[0050] Based on this, in the present embodiment, the protruding part of the rotating shaft 1232 is arranged on the first surface 1231a (i.e., the protruding part of the rotating shaft 1232 is arranged away from the upper sill 110), so that the installation gap between the upper sill 110 and the second surface 1231b does not need to provide additional empty space for the rotating shaft 1232, thereby making the installation space between the upper sill 110 and the second surface 1231b not need to be set too large, and through the abutting cooperation of the bearing bracket 160 and the upper sill 110, the connection thickness between the rotating wheel assembly 123 and the upper sill 110 is reduced, thereby reducing the thickness of the elevator door opening device 100.

[0051] Further, the bearing bracket 160 includes a first bearing 161, a second bearing 162, and a third bearing 163. The first bearing 161 is provided with the fifth side and the sixth side in the above embodiment. The second bearing 162 is connected to the fifth side, and the second bearing 162 is used to abut and cooperate with the upper sill 110. The third bearing 163 is connected to the sixth side, and the third bearing 163 is used to abut and cooperate with the rotating wheel body 1231. Among them, the second bearing 162 is connected to the side of the first bearing 161 away from the rotating wheel body 1231.

[0052] In this way, by connecting the second bearing 162 to the side of the first bearing 161 away from the rotating wheel body 1231, the installation gap between the upper sill 110 and the second surface 1231b does not need to provide additional empty space for the thickness space of the second bearing 162, thereby making the installation space between the upper sill 110 and the second surface 1231b can be made very small, and the thickness between the rotating wheel assembly 123 and the upper sill 110 is reduced to the greatest extent, thereby reducing the thickness of the elevator door opening device 100.

[0053] In one of the embodiments, it is found that Figure 2 The projection area of the car body 300 along the height direction X of the upper sill 110 does not coincide with the projection area of the elevator door opening device 100 along the height direction X.

[0054] It can be understood that in the related art, the car body 300 is provided with a car beam, generally, the car beam and the front wall of the car body 300 are embedded in the upper sill 110, so that there is an overlapping area between the car body 300 and the elevator door opening device 100 in the height direction X, at this time, the car beam of the car body 300 and the front wall of the car body 300 are set to be thicker to cooperate with the overlapping area of the upper sill 110.

[0055] Therefore, in the embodiment, the car body 300 is arranged to be staggered with the elevator door opening device 100 along the height direction X of the upper sill 110, that is, the car beam and the upper sill 110 do not have a nested design, so that the car beam and the front wall of the car body 300 can be designed to be very thin, thereby facilitating the compression of the depth size of the shaft.

[0056] For ease of illustration, the thickness detection effect of the elevator door opening device 100 in an example will be described in detail below.

[0057] After comparing the thickness of the elevator door opening mechanism in the related art with the elevator door opening device 100 in the present application, it is found that when the door hanging plate assembly 130 and the door linkage assembly 120 are installed on the upper sill 110, the thickness between the door hanging plate assembly 130, the door linkage assembly 120 and the upper sill 110 can be reduced by 20mm ~ 30mm, thereby reducing the overall thickness of the elevator door opening device 100 by 20mm ~ 30mm.

[0058] In addition, in combination with the embodiment in which the front wall of the car body 300 is arranged not to overlap the front wall of the car body 300 along the height direction X of the upper sill 110, the front wall of the car body 300 can be reduced by 20mm ~ 30mm. Based on this, after the elevator car in the present application is installed in the elevator equipment, it is beneficial to reduce the thickness of the elevator shaft by 40mm ~ 60mm, greatly reducing the space occupied by the elevator equipment and the elevator shaft, making the overall elevator equipment more lightweight.

[0059] It should be noted that the elevator door opening device 100 in the above embodiment can be a single-side door opening device or a double-side door opening device, etc., which is not limited here.

[0060] In the description of the application, it should be understood that, if there are these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0061] In addition, if there are these terms "first", "second", these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0062] In this application, unless otherwise explicitly specified and limited, if there are terms such as "mounting", "connecting", "connecting", "fixing" and the like, these terms should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0063] In this application, unless otherwise explicitly specified and limited, if there are similar descriptions such as "first feature on or under second feature", the meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0064] It is to be noted that when an element such as a layer, film, or region is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. It will be understood that, when an element or layer is referred to as being "connected" to or "coupled" to another element or layer, it can be directly connected or coupled or intervening elements can be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0065] Any technical features in the above-described embodiments can be combined in any manner, and in order to make the description simple, all possible combinations of technical features in the above-described embodiments are not described, however, as long as the combinations of technical features do not contradict each other, they should be considered within the scope of the present disclosure. The above-described embodiments only express several implementation manners of the present disclosure, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present disclosure. It should be pointed out that, for those skilled in the art, some modifications and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the patent protection scope of the present disclosure should be subject to the appended claims.

Claims

1. An elevator door opening device, characterized in that, The elevator door opening device includes: Upper part; A door linkage component is installed on the upper sill. A door mounting plate assembly is disposed on the upper sill; the door mounting plate assembly is used to install and cooperate with the elevator car door assembly, and the door mounting plate assembly is connected to the door linkage assembly in a driving manner, so that the door mounting plate assembly drives the elevator car door assembly to slide on the upper sill; A door knife assembly includes a door knife base plate and a door knife body; the door knife base plate has a main body and a supporting part; the supporting part protrudes from the side of the main body near the upper sill member, and the supporting part abuts against the door hanging plate assembly, so that the door hanging plate assembly is spaced apart from the main body; the door knife assembly is disposed on the side of the main body away from the upper sill member, and the door knife assembly is drively connected to the elevator landing door assembly, so that the door linkage assembly drives the elevator landing door assembly to slide relative to the upper sill member through the door knife assembly; wherein, the main body and the supporting part are integrally formed.

2. The elevator door opening device according to claim 1, characterized in that, The upper sill is provided with a first side and a second side opposite each other along the height direction of the upper sill; the elevator door opening device also includes a guide rail, which is integrally formed with the upper sill and is located close to the second side; the door hanging plate assembly includes a hanging plate body and a roller assembly, the hanging plate body abuts against the abutting part, and the roller assembly is located on the side of the hanging plate body away from the abutting part, and the roller assembly slides with the guide rail.

3. The elevator door opening device according to claim 2, characterized in that, The guide rail component includes a first guide rail and a second guide rail. The first guide rail has a third side and a fourth side opposite to each other along the thickness direction of the upper sill component. The third side is connected to the upper sill component, and the fourth side is connected to the second guide rail. Along the direction from the first side to the second side, the wall surface of the first guide rail has a concave curved surface structure, and the wall surface of the second guide rail has a convex curved surface structure. The wall surface of the roller assembly is engaged with the convex curved surface structure, allowing the roller assembly to slide with the guide rail component.

4. The elevator door opening device according to claim 3, characterized in that, At least a portion of the guide rail is positioned directly opposite the elevator car door assembly along the height direction of the upper sill.

5. The elevator door opening device according to claim 1, characterized in that, The elevator door opening device also includes a support bracket; the support bracket has a fifth side and a sixth side along the thickness direction of the upper sill, the fifth side is connected to the upper sill, so that the support bracket and the upper sill abut against each other.

6. The elevator door opening device according to claim 5, characterized in that, The door linkage assembly includes a motor, a flexible transmission component, and a rotating wheel assembly. The flexible transmission component is wound around the rotating wheel assembly. The motor is used to drive the rotating wheel assembly to drive the rotating wheel assembly to rotate the flexible transmission component relative to the upper sill. The door hanging plate assembly is connected to the flexible transmission component so that the flexible transmission component drives the door hanging plate assembly to move.

7. The elevator door opening device according to claim 6, characterized in that, The rotating wheel assembly includes a rotating wheel body and a rotating shaft; the rotating wheel body is driven and connected to the motor; the rotating wheel body has a first surface and a second surface opposite to each other along the thickness direction of the upper sill; the second surface and the surface of the upper sill are arranged facing each other; the rotating shaft is inserted and engaged with the rotating wheel body and the sixth side, and the rotating wheel body can rotate relative to the upper sill and the support bracket through the rotating shaft; one end of the rotating shaft protrudes from the first surface, and the other end is flush with or recessed from the second surface; wherein, the support bracket abuts against the first surface.

8. An elevator car, characterized in that, The elevator includes an elevator car door assembly, a car body, and an elevator door opening device as described in any one of claims 1 to 7; the elevator door opening device is used to drive the elevator car door assembly to slide on the car body.

9. The elevator car according to claim 8, characterized in that, The car body is offset from the elevator door opening device along the height direction of the upper sill.

10. An elevator device, characterized in that, The elevator includes a lifting assembly and an elevator car as described in any one of claims 8 to 9, wherein the lifting assembly is used to drive the elevator car to move the elevator car up and down in the height direction.

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