Door vane device, door vane car door lock and elevator

Abstract

The invention relates to a door vane device, a door vane car door lock and an elevator. The door knife device comprises a door knife assembly and a lifting assembly. The door knife assembly comprises a door knife bottom plate, a first rotating arm, a second rotating arm, a first door knife and a second door knife. The door knife bottom plate is used for being installed on a door hanging plate of a car door. One end of the first rotating arm is rotatably connected with the door vane bottom plate, the other end of the first rotating arm is rotatably connected with the first door vane, and a lifting matching part is arranged on the side, facing the door vane bottom plate, of the first rotating arm. One end of the second rotating arm is rotatably connected with the door vane bottom plate, and the other end of the second rotating arm is rotatably connected with the second door vane. The lifting assembly is installed on the door knife bottom plate, the lifting assembly is arranged between the first door knife and the second door knife, and the lifting assembly can be matched with the lifting matching part so that the first door knife can be lifted upwards. In this way, the space of the door knife device in the height direction can be saved, and the overall door machine assembly is more compact.

Description

Technical Field

[0001] The present application relates to the technical field of elevators, and particularly to a door knife device, a door knife car door lock and an elevator. Background Art

[0002] The asynchronous internal clamping door knife device includes a left door knife and a right door knife. During the elevator door closing process, the left door knife needs to be lifted so that the landing door ball is separated from the left door knife and the right door knife by a certain distance to avoid interference with the landing door ball during the up and down movement of the elevator. In the past, a sliding groove structure separated from the door knife bottom plate was used to achieve the lifting of the left door knife. However, this asynchronous internal clamping door knife device occupies a large space and has an incompact structure. Summary of the Invention

[0003] Based on this, it is necessary to provide a door knife device, a door knife car door lock and an elevator, which can save the space of the door knife device in the height direction and make the overall door machine assembly more compact.

[0004] A door knife device includes:

[0005] A door knife assembly, the door knife assembly includes a door knife bottom plate, a first rotating arm, a second rotating arm, a first door knife and a second door knife arranged along a first direction. The door knife bottom plate is used for installing on the door hanging plate of the car door. Two ends of the first rotating arm are respectively rotatably connected to the door knife bottom plate and the first door knife. Two ends of the second rotating arm are respectively rotatably connected to the door knife bottom plate and the second door knife. A lifting cooperation part is arranged on one side of the first door knife facing the door knife bottom plate; and,

[0006] A lifting assembly, the lifting assembly is installed on the door knife bottom plate, the lifting assembly is arranged between the first door knife and the second door knife, and the lifting assembly can cooperate with the lifting cooperation part to lift the first door knife upward.

[0007] In one embodiment, the door knife device further includes a limiting part, and the limiting part is used for installing on the car door guide rail bracket; the lifting assembly includes a moving part and an elastic part connected and cooperating with the moving part. Two ends of the moving part are respectively used for abutting against the lifting cooperation part and the limiting part to make the first rotating arm rotate and drive the first door knife to lift upward, and the elastic part is used for driving the moving part to reset.

[0008] In one embodiment, the lifting assembly also includes a fixed seat, which is installed on the door knife base plate, and a movable seat is provided on the side of the fixed seat away from the lifting matching part along the first direction; the two ends of the elastic member are respectively connected to the fixed seat and the movable seat, and the elastic member can be compressed in the opposite direction of the first direction. The fixed seat is provided with a through hole extending along the first direction, and the movable member is movably arranged in the through hole and connected to the movable seat.

[0009] In one embodiment, the lifting assembly further includes a first rolling member, which is rotatably mounted on one end of the moving member close to the lifting fitting portion, and the first rolling member is used for rolling engagement with the lifting fitting portion.

[0010] In one embodiment, the first door knife and the second door knife are used to be arranged between the door knife base plate and the floor door, and the lifting assembly and the limiting portion are used to be arranged between the door knife base plate and the car door; the door knife base plate is provided with an avoidance opening, and the lifting matching portion includes a vertical portion and a first inclined portion connected to the vertical portion, one side of the vertical portion is connected to the first door knife, and the other side of the vertical portion extends through the avoidance opening to the side of the door knife base plate away from the first door knife and corresponds to the lifting assembly, the first inclined portion is arranged at the top of the vertical portion away from the first door knife side, and the first inclined portion is inclined upward from the vertical portion in a direction away from the lifting assembly.

[0011] In one of the embodiments, the door knife device further includes a lifting seat, which is used to be installed on the car door guide rail frame, and the lifting seat can drive the first rotating arm to rotate to drive the first door knife to lift upward.

[0012] In one embodiment, a second inclined surface is provided on the top of the lifting seat, and the second inclined surface is inclined upward along the first direction.

[0013] A door knife car door lock comprises the door knife device mentioned above.

[0014] In one embodiment, the door knife car door lock also includes a floor door lock assembly, the floor door lock assembly includes a floor door ball, the floor door ball can enter between the first door knife and the second door knife, the first door knife and the second door knife can clamp the floor door ball to drive the floor door to open and close; the door knife car door lock also includes a car door lock hook and a lock seat for installation on the upper sill of the car door, the car door lock hook is arranged on the side of the second door knife away from the first door knife, and the car door lock hook has a locked state cooperating with the lock seat hook and an unlocked state separated from the lock seat.

[0015] An elevator comprises the above-mentioned door knife car door lock.

[0016] In the above-mentioned door knife device, door knife car door lock and elevator, during the process of closing the door, the first door knife and the second door knife clamp the floor door ball to move. When the floor door ball moves into place, the floor door ball is in a stationary state, and the floor door ball is tangent to the first door knife. As the door knife assembly continues to move along the first direction, the first door knife is lifted upward under the limiting action of the floor door ball, and the lifting assembly contacts the lifting matching part of the first door knife. Since the door knife assembly continues to move along the first direction, the lifting assembly conflicts with the lifting matching part of the first door knife, causing the first rotating arm to rotate counterclockwise, thereby driving the first door knife to lift upward, and at the same time, the first door knife is separated from the floor door ball by a certain distance. At this time, the door knife device closes the door in place, so that the door knife device will not interfere with the floor door ball during the vertical up and down movement of the elevator. With the cooperation of the lifting assembly and the lifting matching part, the first door knife can be lifted upward. Since the lifting assembly is arranged between the first door knife and the second door knife, and the lifting matching part is arranged on the side of the first door knife facing the door knife base plate, this can save space in the height direction of the door knife device, making the overall door machine assembly more compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The door closing process of the door knife car door lock of an embodiment of the present application Figure 1 .

[0018] Figure 2 The door closing process of the door knife car door lock of an embodiment of the present application Figure 2 .

[0019] Figure 3 The door closing process of the door knife car door lock of an embodiment of the present application Figure 3 .

[0020] Figure 4 This is a schematic diagram of the structure of a door knife car door lock in a fully closed state according to an embodiment of the present application.

[0021] Figure 5 for Figure 4 A top view of the door knife car door lock is shown.

[0022] Description of Figure Numbers:

[0023] 10. Door knife assembly; 11. Door knife bottom plate; 111. Avoidance; 12. First rotating arm; 13. Second rotating arm; 14. First door knife; 141. Lifting matching part; 1411. Vertical part; 1412. First inclined part; 15. Second door knife; 20. Lifting assembly; 21. Moving part; 22. Elastic part; 23. Fixed seat; 24. Movable seat; 25. First rolling part; 30. Limiting part; 40. Lifting seat; 41. Second inclined part; 50. Floor door lock assembly; 51. Floor door ball; 60. Car door lock hook; 61. Second rolling part; 70. Lock seat. Detailed implementation manners

[0024] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe in detail the specific implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a thorough understanding of 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 connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0025] Refer to Figure 1 , a door knife device provided by an embodiment of the present application includes a door knife assembly 10 and a lifting assembly 20. The door knife assembly 10 includes a door knife bottom plate 11, a first rotating arm 12, a second rotating arm 13, a first door knife 14, and a second door knife 15. The door knife bottom plate 11 is used for mounting on the door hanging plate of the car door. One end of the first rotating arm 12 is rotatably connected to the door knife bottom plate 11, and the other end of the first rotating arm 12 is rotatably connected to the first door knife 14. A lifting cooperation portion 141 is provided on the side of the first rotating arm 12 facing the door knife bottom plate 11. One end of the second rotating arm 13 is rotatably connected to the door knife bottom plate 11, and the other end of the second rotating arm 13 is rotatably connected to the second door knife 15. The lifting assembly 20 is mounted on the door knife bottom plate 11, and the lifting assembly 20 is disposed between the first door knife 14 and the second door knife 15. The lifting assembly 20 can cooperate with the lifting cooperation portion 141 to lift the first door knife 14 upward.

[0026] Specifically, the first door knife 14 and the second door knife 15 are arranged along a first direction. For the convenience of understanding, refer to Figure 1 , and the first direction is represented by S.

[0027] In the above-mentioned door knife device, during the process of closing the door, the first door knife 14 and the second door knife 15 clamp the landing door ball 51 and move. When the landing door ball 51 moves into place, the landing door ball 51 is in a stationary state, and the landing door ball 51 is tangent to the first door knife 14. As the door knife assembly 10 continues to move along the first direction, the first door knife 14 is lifted upward under the limiting action of the landing door ball 51, and the lifting assembly 20 contacts the lifting matching part 141 of the first door knife 14. As the door knife assembly 10 continues to move along the first direction, the lifting assembly 20 conflicts with the lifting matching part 141 of the first door knife 14, so that the first rotating arm 12 rotates counterclockwise, thereby driving the first door knife 14 to lift upward, and at the same time, the first door knife 14 is separated from the landing door ball 51 by a certain distance. At this time, the door knife device closes the door in place, so that the door knife device will not interfere with the landing door ball 51 during the vertical up and down movement of the elevator. With the cooperation of the lifting assembly 20 and the lifting matching part 141, the first door knife 14 can be lifted upward. Since the lifting assembly 20 is arranged between the first door knife 14 and the second door knife 15, and the lifting matching part 141 is arranged on the side of the first door knife 14 facing the door knife base plate 11, this can save space in the height direction of the door knife device, making the overall door machine assembly more compact.

[0028] In one embodiment, see Figure 1 , Figure 2 and Figure 3 The door knife device also includes a limiting portion 30, which is used to be installed on the car door guide rail frame.

[0029] Further, see Figure 1 , Figure 2 and Figure 3 The lifting assembly 20 includes a moving member 21 and an elastic member 22 connected to the moving member 21. The two ends of the moving member 21 are respectively used to contact with the lifting matching portion 141 and the limiting portion 30 to rotate the first rotating arm 12 and drive the first door blade 14 to lift upward, and the elastic member 22 is used to drive the moving member 21 to reset.

[0030] During the closing process, see Figure 1 , Figure 2 and Figure 3, the first door knife 14 and the second door knife 15 clamp the landing door ball 51 and move along the first direction. The lifting cooperation part 141 of the first door knife 14 abuts against the moving part 21 and moves in the direction close to the limiting part 30 until both ends of the moving part 21 abut against the lifting cooperation part 141 and the limiting part 30 respectively. At this time, the elastic part 22 is in a compressed state. The door knife assembly 10 continues to move along the first direction. Under the limiting action of the moving part 21, the first rotating arm 12 rotates counterclockwise to drive the first door knife 14 to lift upward, and at the same time drives the first door knife 14 to move away from the landing door ball 51, so that there is a certain distance between the first door knife 14 and the landing door ball 51. In this way, the door knife device will not interfere with the landing door ball 51 during the vertical up and down movement of the elevator. During the process of the first door knife 14 moving away from the landing door ball 51, the elastic part 22 is gradually compressed, and the moving part 21 moves in the direction close to the lifting cooperation part 141 under the limitation of the limiting part 30 and abuts against the lifting cooperation part 141, which can avoid the first rotating arm 12 rotating clockwise under its own gravity, so that the first door knife 14 maintains the state of lifting upward and having a certain distance from the landing door ball 51.

[0031] In one embodiment, refer to Figure 1 , Figure 2 and Figure 3 , the lifting assembly 20 further includes a fixed seat 23. The fixed seat 23 is installed on the door knife bottom plate 11. A movable seat 24 is provided on one side of the fixed seat 23 away from the lifting cooperation part 141 along the first direction. Both ends of the elastic part 22 are connected to the fixed seat 23 and the movable seat 24 respectively, and the elastic part 22 can be compressed along the opposite direction of the first direction. The fixed seat 23 is provided with a through hole extending along the first direction, and the moving part 21 is movably arranged in the through hole and connected to the movable seat 24. During the closing process, the lifting cooperation part 141 of the first door knife 14 abuts against the moving part 21 and moves in the direction close to the limiting part 30 along the first direction until both ends of the moving part 21 abut against the lifting cooperation part 141 and the limiting part 30 respectively. At this time, the elastic part 22 is in a compressed state. The door knife assembly 10 continues to move along the first direction. Under the limiting action of the moving part 21, the first rotating arm 12 rotates counterclockwise to drive the first door knife 14 to lift upward, and at the same time drives the first door knife 14 to move away from the landing door ball 51. At this time, there is a certain distance between the first door knife 14 and the landing door ball 51. During the process of the first door knife 14 moving away from the landing door ball 51, the elastic part 22 is gradually compressed, and the moving part 21 moves in the direction close to the lifting cooperation part 141 under the limitation of the limiting part 30 and remains in a state of abutting against the lifting cooperation part 141.

[0032] In one embodiment, refer to Figure 1 and Figure 5, the lifting component 20 further includes a first rolling member 25. The first rolling member 25 is rotatably installed at one end of the moving member 21 close to the lifting mating portion 141. The first rolling member 25 is used for rolling cooperation with the lifting mating portion 141. In this way, by arranging the first rolling member 25 on the moving member 21, the moving member 21 can be in rolling cooperation with the lifting mating portion 141 through the first rolling member 25, reducing the friction between the moving member 21 and the lifting mating portion 141, avoiding wear of the moving member 21 and the lifting mating portion 141, and at the same time being beneficial to improving the smoothness of the upward lifting of the first door knife 14.

[0033] Optionally, the first rolling member 25 is a roller. Specifically, referring to Figure 4 , the roller is arranged between the moving member 21 and the door knife bottom plate 11. The roller is correspondingly arranged at one end of the moving member 21 close to the lifting mating portion 141. The roller is installed on the moving member 21 through a connecting shaft.

[0034] In one embodiment, referring to Figure 5 , the first door knife 14 and the second door knife 15 are arranged between the door knife bottom plate 11 and the landing door. The lifting component 20 and the limiting portion 30 are arranged between the door knife bottom plate 11 and the car door. By arranging the first door knife 14 and the second door knife 15 between the door knife bottom plate 11 and the landing door, the first door knife 14 and the second door knife 15 can clamp the landing door ball 51 to drive the landing door to open and close. During the closing process, the first door knife 14, the second door knife 15 and the lifting component 20 will all move. By arranging the first door knife 14 and the second door knife 15 between the door knife bottom plate 11 and the landing door, and the lifting component 20 and the limiting portion 30 between the door knife bottom plate 11 and the car door, this can avoid interference of the first door knife 14, the second door knife 15 and the lifting component 20 during the movement process and improve the reliability of closing the door.

[0035] In one embodiment, referring to Figures 1 to 5, the door blade bottom plate 11 is provided with an avoidance opening 111. The lifting matching portion 141 includes a vertical portion 1411 and a first inclined portion 1412 connected to the vertical portion 1411. One side of the vertical portion 1411 is connected to the first door blade 14, and the other side of the vertical portion 1411 extends through the avoidance opening 111 to the side of the door blade bottom plate 11 away from the first door blade 14 and corresponds to the lifting assembly 20. The first inclined portion 1412 is provided at the top of the side of the vertical portion 1411 away from the first door blade 14, and the first inclined portion 1412 is inclined upward from the vertical portion 1411 in a direction away from the lifting assembly 20. Since the lifting matching portion 141 includes the first inclined portion 1412 corresponding to the lifting assembly 20, the first inclined portion 1412 is inclined upward from the vertical portion 1411 in a direction away from the lifting assembly 20. In the process of closing the door, even if the first rotating arm 12 rotates counterclockwise, the first inclined portion 1412 and the lifting assembly 20 will not interfere with each other, thereby ensuring smooth closing of the door. In addition, the first inclined surface 1412 can also play a guiding role, so that the moving member 21 slides into the vertical portion 1411 after being guided by the first inclined surface 1412. By setting the vertical portion 1411, during the process of closing the door, the first rolling member 25 of the moving member 21 conflicts with the vertical portion 1411, so that the first rotating arm 12 rotates counterclockwise, thereby driving the first door knife 14 to move upward, and at the same time driving the first door knife 14 to move away from the door ball 51 of the floor door, so that there is a certain distance between the first door knife 14 and the door ball 51 of the floor door, so that the door knife device will not interfere with the door ball 51 of the floor door during the vertical up and down movement of the elevator.

[0036] In one embodiment, see Figures 1 to 5 The door knife device also includes a lifting seat 40, which is used to be installed on the car door guide rail frame. The lifting seat 40 is used to drive the first rotating arm 12 to rotate so as to drive the first door knife 14 to lift upward. In the process of closing the door, the first door knife 14 and the second door knife 15 clamp the layer door ball 51 and move along the first direction. When the first door knife 14 and the second door knife 15 clamp the layer door ball 51 until the door is about to be closed, the first rotating arm 12 contacts the lifting seat 40, and the first rotating arm 12 rotates counterclockwise under the drive of the lifting seat 40 to drive the first door knife 14 to lift upward. In the process of the first door knife 14 lifting upward, the first rolling member 25 of the moving member 21 slides from the first inclined portion 1412 to the vertical portion 1411. In this way, by setting the lifting seat 40, the lifting seat 40 is used to drive the first rolling member 25 of the moving member 21 to slide from the first inclined portion 1412 to the vertical portion 1411.

[0037] Further, see Figure 3 and Figure 4, the top of the lifting seat 40 is provided with a second inclined surface portion 41, and the second inclined surface portion 41 is inclined upward along the first direction. During the process of closing the door, when the door knife device moves along the first direction to contact the first rotating arm 12 with the second inclined surface portion 41, since the lifting seat 40 is fixed, the first rotating arm 12 is lifted under the limiting action of the second inclined surface portion 41. It can also be understood that the first rotating arm 12 rotates counterclockwise under the driving of the second inclined surface portion 41 to drive the first door knife 14 to lift upward, so that the first rolling member 25 slides from the first inclined surface portion 1412 to the vertical portion 1411.

[0038] The door knife car lock of an embodiment of the present application includes the door knife device of any of the above embodiments.

[0039] For the above-mentioned door knife car lock, during the process of closing the door, the first door knife 14 and the second door knife 15 clamp the landing door ball 51 to move. When the landing door ball 51 moves in place, the landing door ball 51 is in a static state, and the landing door ball 51 is tangent to the first door knife 14. As the door knife assembly 10 continues to move along the first direction, the first door knife 14 is lifted upward under the limiting action of the landing door ball 51, and the lifting assembly 20 contacts the lifting cooperation portion 141 of the first door knife 14. Since the door knife assembly 10 continues to move along the first direction, the lifting assembly 20 abuts against the lifting cooperation portion 141 of the first door knife 14, causing the first rotating arm 12 to rotate counterclockwise, thereby driving the first door knife 14 to lift upward. At the same time, the first door knife 14 is separated from the landing door ball 51 by a certain distance. At this time, the door knife device is in place for closing the door, so that the door knife device will not interfere with the landing door ball 51 during the vertical up and down movement of the elevator. With the cooperation of the lifting assembly 20 and the lifting cooperation portion 141, the first door knife 14 can be lifted upward. Since the lifting assembly 20 is provided between the first door knife 14 and the second door knife 15, and the lifting cooperation portion 141 is provided on the side of the first door knife 14 facing the door knife bottom plate 11, this can save space in the height direction of the door knife device, making the overall assembly of the door machine more compact.

[0040] In one embodiment, refer to Figure 1 , the door knife car lock further includes a landing door lock assembly 50. The landing door lock assembly 50 includes a landing door ball 51. The landing door ball 51 can enter between the first door knife 14 and the second door knife 15, and the first door knife 14 and the second door knife 15 can clamp the landing door ball 51 to drive the landing door to open and close. During the process of opening and closing the door, the landing door ball 51 is located between the first door knife 14 and the second door knife 15, and the first door knife 14 and the second door knife 15 clamp the landing door ball 51 to drive the landing door to open and close.

[0041] It should be noted that the number and arrangement position of the landing door balls 51 can be set according to actual needs. For example, in this embodiment, two landing door balls 51 are provided, namely a moving wheel and a static wheel, and the two landing door balls 51 are arranged side by side along the first direction.

[0042] In one embodiment, referring to Figure 1 and Figure 4 , the car door lock of the door knife further includes a car door lock hook 60 and a lock seat 70 for mounting on the upper sill of the car door. The car door lock hook 60 is provided on the side of the second door knife 15 away from the first door knife 14. The car door lock hook 60 has a locked state in which it is hooked and cooperated with the lock seat 70 and an unlocked state in which it is separated from the lock seat 70.

[0043] Specifically, the car door lock hook 60 is provided with a second rolling member 61, and the second rolling member 61 can be in abutting cooperation with the second door knife 15 to separate the car door lock hook 60 from the lock seat 70.

[0044] During the closing process of the door, when the first door knife 14 and the second door knife 15 clamp the landing door ball 51 and there is still about half of the stroke left until the elevator door closes in place, at this time the first door knife 14 and the second door knife 15 clamp the landing door ball 51, and the second rolling member 61 of the car door lock hook 60 contacts the second door knife 15. The car door lock hook 60 is lifted under the action of the second door knife 15 to be separated from the lock seat 70, realizing unlocking.

[0045] An elevator includes the car door lock of the door knife according to any one of the above embodiments.

[0046] In the above elevator, during the closing process of the door, the first door knife 14 and the second door knife 15 clamp the landing door ball 51 and move. When the landing door ball 51 moves in place, the landing door ball 51 is in a static state and the landing door ball 51 is tangent to the first door knife 14. As the door knife assembly 10 continues to move in the first direction, the first door knife 14 is lifted upward under the limiting action of the landing door ball 51, and the lifting assembly 20 contacts the lifting cooperation portion 141 of the first door knife 14. Since the door knife assembly 10 continues to move in the first direction, the lifting assembly 20 abuts against the lifting cooperation portion 141 of the first door knife 14, causing the first rotating arm 12 to rotate counterclockwise, thereby driving the first door knife 14 to be lifted upward. At the same time, the first door knife 14 is separated from the landing door ball 51 by a certain distance. At this time, the door knife device closes in place, so that the door knife device will not interfere with the landing door ball 51 during the vertical up and down movement of the elevator. With the cooperation of the lifting assembly 20 and the lifting cooperation portion 141, the first door knife 14 can be lifted upward. Since the lifting assembly 20 is provided between the first door knife 14 and the second door knife 15, and the lifting cooperation portion 141 is provided on the side of the first door knife 14 facing the door knife bottom plate 11, this can save space in the height direction of the door knife device and make the overall door machine assembly more compact.

[0047] In the description of the present application, it should be understood that if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "first", "second", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0048] In addition, if there are terms such as "first" and "second", these terms are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present application, if there is a term "plurality", the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0049] In the present application, unless otherwise clearly specified and limited, if there are terms such as "mounted", "connected", "connected to", "fixed", etc., these terms should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0050] In the present application, unless otherwise clearly specified and limited, if there is a description such as a first feature being "on" or "under" a second feature, the meaning may 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 being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0051] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "first", "second" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0052] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0053] The above-described embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A door knife device, characterized in that, include: A door knife assembly, the door knife assembly comprising a door knife base plate, a first rotating arm, a second rotating arm, a first door knife and a second door knife arranged along a first direction, the door knife base plate is used to be installed on a door hanging plate of a car door, two ends of the first rotating arm are rotatably connected to the door knife base plate and the first door knife respectively, two ends of the second rotating arm are rotatably connected to the door knife base plate and the second door knife respectively, and a lifting matching portion is provided on a side of the first door knife facing the door knife base plate; and, A lifting component is installed on the door knife bottom plate, the lifting component is arranged between the first door knife and the second door knife, and the lifting component can cooperate with the lifting matching part to lift the first door knife upward.

2. The gate knife device according to claim 1, wherein The door knife device also includes a limiting portion, which is used to be installed on the car door guide rail frame; The lifting assembly includes a moving part and an elastic part connected to the moving part, the two ends of the moving part are respectively used to interfere with the lifting matching part and the limiting part to rotate the first rotating arm and drive the first door knife to lift upward, and the elastic part is used to drive the moving part to reset.

3. The gate knife device according to claim 2, characterized in that, The lifting assembly also includes a fixed seat, which is installed on the door knife base plate, and a movable seat is provided on the side of the fixed seat away from the lifting matching part along the first direction; the two ends of the elastic member are respectively connected to the fixed seat and the movable seat, and the elastic member can be compressed in the opposite direction of the first direction. The fixed seat is provided with a through hole extending along the first direction, and the movable member is movably arranged in the through hole and connected to the movable seat.

4. The gate knife device according to claim 2, wherein The lifting assembly further comprises a first rolling member, which is rotatably mounted on one end of the moving member close to the lifting fitting portion, and is used for rolling engagement with the lifting fitting portion.

5. The gate knife device according to claim 2, characterized in that, The first door knife and the second door knife are used to be arranged between the door knife bottom plate and the landing door, and the lifting assembly and the limiting part are used to be arranged between the door knife bottom plate and the car door; The door knife base plate is provided with an avoidance opening, and the lifting matching portion includes a vertical portion and a first inclined portion connected to the vertical portion, one side of the vertical portion is connected to the first door knife, and the other side of the vertical portion extends through the avoidance opening to the side of the door knife base plate away from the first door knife and corresponds to the lifting assembly, the first inclined portion is arranged at the top of the side of the vertical portion away from the first door knife, and the first inclined portion is inclined upward from the vertical portion toward a direction away from the lifting assembly.

6. The gate knife device according to claim 1, characterized in that The door knife device also includes a lifting seat, which is used to be installed on the car door guide rail frame. The lifting seat can drive the first rotating arm to rotate to drive the first door knife to lift upward.

7. The gate knife device according to claim 6, wherein, A second inclined surface is disposed on the top of the lifting seat, and the second inclined surface is inclined upward along the first direction.

8. A door knife car lock, characterized in that, It comprises a door knife device as claimed in any one of claims 1 to 7.

9. The car door lock with a door knife according to claim 8, characterized in that, The door knife car door lock further includes a landing door lock assembly, the landing door lock assembly includes a landing door ball, the landing door ball can enter between the first door knife and the second door knife, and the first door knife and the second door knife can clamp the landing door ball to drive the landing door to open and close; The door knife car door lock further includes a car door lock hook and a lock seat for being installed on the upper sill of the car door. The car door lock hook is arranged on a side of the second door knife away from the first door knife, and the car door lock hook has a locked state of being hooked and cooperated with the lock seat and an unlocked state of being separated from the lock seat.

10. An elevator, characterized in that, Including the door knife car door lock according to claim 8 or 9.

Images