Door vane structure

Abstract

The utility model relates to a door vane structure. The door knife structure comprises a door machine frame, a top, a base and a telescopic blocking mechanism, and a guide element is arranged on the door machine frame. The top plate is fixed on the portal crane frame; the base is movably arranged on the door machine frame and used for being connected with a car door. A wheel clamping door knife and a first swing arm structure are arranged on the base, and the wheel clamping door knife is movably connected to the base through the first swing arm structure and used for clamping a door lock roller; the guide element is used for restraining the swing track of the clamping wheel door knife; the telescopic blocking mechanism comprises a bottom frame, a telescopic shaft, a blocking shaft and a driving part, the bottom frame is installed on the base, the telescopic shaft is fixedly connected with the blocking shaft, and the driving part is arranged between the bottom frame and the telescopic shaft and drives the telescopic shaft to stretch out to abut against the top plate. Through the arrangement, the universality of the door knife assembly is improved, so that the same door knife assembly can be matched with various door lock devices of old elevators, the application range is widened, and the door knife assembly can be matched with various different door lock rollers for use.

Description

Technical Field

[0001] This application relates to the field of elevator door system technology, and in particular to door knife structure. Background Technology

[0002] With the acceleration of urbanization, the number of old elevators is increasing daily. These old elevators generally suffer from numerous safety hazards, low operating efficiency, and poor comfort. During the renovation of old elevators, considering renovation costs and timelines, the common approach for door system upgrades is to "retain the landing door system and replace the car door system." However, the door system is one of the components in an elevator whose structure changes most frequently, requiring the replaced car door system to be compatible with various landing door systems.

[0003] The key to matching the car door system and the landing door system is that the area between the unlocking door knife and the clamping wheel door knife of the car door side door knife assembly must be exactly equal to or slightly larger than the roller size of the landing door side door lock device. The two door knives must clamp the door lock rollers or maintain a slight gap, and the clamping state cannot be released even when the landing door is obstructed from closing, so as to ensure that the car door and the landing door always open or close synchronously.

[0004] Currently, the method to prevent the door lock roller from reverting to its upward swing after the clamping door knife clamps down is to set the terminal limit of the clamping door knife's downward swing process to a negative angle between the center of the clamping door knife's swing arm and the horizontal line. This method results in a fixed downward swing amplitude of the clamping door knife, and it can only handle one type of door lock roller size. When it is necessary to handle landing door locks with different roller sizes, the internal detailed dimensions of the clamping door knife must be designed separately. This not only leads to low design efficiency and long response time, but also makes it difficult to promote and apply, greatly limiting the efficiency and effectiveness of elevator door system retrofitting. Utility Model Content

[0005] Based on this, a door knife structure is provided to solve the problem that existing door knife structures are difficult to match with the different sizes of various door lock rollers.

[0006] An embodiment of the first aspect of this application provides a door knife structure, the door knife structure comprising:

[0007] A gantry crane frame, on which guide elements are provided;

[0008] Top plate, which is fixed to the gantry crane frame;

[0009] A base is movably mounted on the door operator frame for connecting the car door; a clamping wheel door knife and a first swing arm structure are provided on the base, the clamping wheel door knife is movably connected to the base through the first swing arm structure for clamping the door lock roller; the guide element is used to constrain the swing trajectory of the clamping wheel door knife.

[0010] The telescopic blocking mechanism comprises a base frame, a telescopic shaft, a blocking shaft and a driving member, the base frame is installed on the base, the telescopic shaft and the blocking shaft are fixedly connected, and the driving member is arranged between the base frame and the telescopic shaft, and the driving member drives the telescopic shaft to extend to abut against the top plate.

[0011] When the wheel clamping door knife is lowered to abut against the door lock roller, the blocking shaft limits the upward swing of the wheel clamping door knife.

[0012] In one embodiment, the base frame is provided with a guide through hole, and the telescopic shaft and the blocking shaft pass through the guide through hole and are in sliding fit with the base frame along the axial direction of the blocking shaft.

[0013] The telescopic blocking mechanism further comprises a connecting plate, and one end of the telescopic shaft away from the top plate is fixedly connected with one end of the blocking shaft away from the top plate through the connecting plate.

[0014] In one embodiment, the driving member comprises:

[0015] A spring is arranged between the base frame and the front end shaft shoulder of the telescopic shaft, and in a natural state, the spring driving force drives the telescopic shaft and the blocking shaft to extend forward.

[0016] In one embodiment, the guide element comprises an arc-shaped groove fixed to the door machine frame.

[0017] The wheel clamping door knife is provided with a knife lifting roller.

[0018] During the closing process, the wheel clamping door knife follows the base to approach the arc-shaped groove, the arc-shaped groove abuts against the knife lifting roller, and the wheel clamping door knife is lifted upward.

[0019] During the opening process, the wheel clamping door knife follows the base to move away from the arc-shaped groove, and the wheel clamping door knife is lowered until it abuts against the door lock roller.

[0020] In one embodiment, the wheel clamping door knife is provided with a shaft pin.

[0021] During the opening process, the telescopic blocking mechanism follows the base to move away from the arc-shaped groove, the telescopic shaft is extended under the driving of the driving member, the blocking shaft is located above the shaft pin, and the upward swing of the wheel clamping door knife is limited.

[0022] In one embodiment, a first adjusting unit is arranged between the base frame and the base, and the first adjusting unit comprises:

[0023] A first adjusting slot is formed on the base in a vertical direction;

[0024] A first mounting hole is formed on the base frame;

[0025] A first adjusting bolt passes through the first mounting hole and the first adjusting slot to fixedly connect the base and the base frame.

[0026] In one embodiment, the base frame comprises:

[0027] An installation portion is used to fixedly connect the telescopic shaft and the blocking shaft;

[0028] An adjusting portion is fixedly connected with the installation portion, the first mounting hole is formed on the adjusting portion, and the adjusting portion is used to connect with the base.

[0029] In one embodiment, a second adjusting unit is arranged between the top plate and the door machine frame, and the second adjusting unit comprises:

[0030] A second adjusting slot is formed on the top plate in an axial direction of the telescopic shaft;

[0031] A second mounting hole is formed on the door machine frame;

[0032] A second adjusting bolt passes through the second mounting hole and the second adjusting slot to fixedly connect the top plate and the door machine frame.

[0033] In one embodiment, the top plate comprises:

[0034] A blocking portion is used to abuttingly cooperate with the telescopic shaft to retract the telescopic shaft;

[0035] A connecting portion is fixedly connected with the blocking portion, the second adjusting slot is formed on the connecting portion, and the connecting portion is used to connect with the door machine frame.

[0036] In one embodiment, the base is provided with a unlocking door blade and a second swing arm structure, the unlocking door blade is movably connected to the base through the second swing arm structure, and is used to cooperate with the door lock roller to clamp the door lock roller;

[0037] A lift door lock hook is rotatably connected to the base, and the unlocking door blade abuts against the lift door lock hook;

[0038] When the unlocking door blade swings, the unlocking door blade drives the lift door lock hook to rotate, so that the lift door lock hook or resets.

[0039] According to the door closer structure of the embodiment of the present application, when the wheel clamping door closer is swung downward until the door lock roller is clamped, the blocking shaft is located above the wheel clamping door closer, the wheel clamping door closer enters the blocking range of the blocking shaft, and the blocking shaft blocks the wheel clamping door closer to prevent the wheel clamping door closer from being swung upward. The swinging track of the wheel clamping door closer is constrained by the guide element, and the upward swinging of the wheel clamping door closer is limited by the telescopic blocking mechanism, so that the wheel clamping door closer can clamp the door lock roller accurately and stably, the car door and the landing door can be kept synchronous during operation, the mutual movement of the car door and the landing door is avoided, the failure probability of the elevator door during operation is reduced, and the stability and reliability of the elevator door system are improved. During the operation of the elevator, if the landing door is accidentally blocked, the door lock roller will generate a reverse force on the wheel clamping door closer. Due to the limiting effect of the blocking shaft, the wheel clamping door closer will not be easily swung upward to release the door lock roller due to the reverse force, so as to prevent the landing door from being accidentally opened, and the safety of passengers is ensured. The swinging range of the wheel clamping door closer downward can be changed according to the size of the door lock roller, and the wheel clamping door closer does not need to be fixed to a specific angle. Through the above setting, the universality of the door closer assembly is improved, the same kind of door closer assembly can be matched with the door lock device of multiple old elevators, the application range is larger, and the door closer assembly can be matched with multiple different door lock rollers. BRIEF DESCRIPTION OF DRAWINGS

[0040] Figure 1 FIG. 1 is a structural schematic diagram of a door closer structure according to an embodiment of the present application.

[0041] Figure 2 FIG. 4 is a structural schematic diagram of a telescopic blocking mechanism in the door closer structure according to an embodiment of the present application.

[0042] Figure 3 FIG. 5 is a structural schematic diagram of a second adjusting sliding groove in the door closer structure according to an embodiment of the present application.

[0043] Figure 4 FIG. 6 is a structural schematic diagram of the abutment of a pin shaft and a blocking shaft in the door closer structure according to an embodiment of the present application.

[0044] Figure 5 FIG. 7 is a first action principle diagram of the door closer structure according to an embodiment of the present application.

[0045] Figure 6 FIG. 8 is a second action principle diagram of the door closer structure according to an embodiment of the present application.

[0046] Figure 7 FIG. 9 is a third action principle diagram of the door closer structure according to an embodiment of the present application.

[0047] Figure 8 FIG. 10 is a fourth action principle diagram of the door closer structure according to an embodiment of the present application.

[0048] Figure 9Figure 5 is a fifth action principle diagram of the door closer structure of an embodiment of the present application.

[0049] Figure 10 Figure 6 is a structure schematic diagram of the telescopic blocking mechanism of the door closer structure of an embodiment of the present application when the installation position of the telescopic blocking mechanism is lower.

[0050] Reference signs:

[0051] 1000, door machine frame; 1100, door hanging plate; 1200, second mounting hole;

[0052] 2000, arc-shaped slot;

[0053] 3000, top plate; 3100, connecting part; 3110, second adjusting sliding groove; 3200, blocking part;

[0054] 4000, base; 4100, wheel door closer; 4110, door closer lifting roller; 4120, shaft pin; 4200, first swing arm structure; 4300, first adjusting sliding groove; 4400, unlocking door closer; 4410, first limiting part; 4420, second limiting part; 4430, unlocking flange; 4500, second swing arm structure; 4600, lift door lock hook; 4610, unlocking roller;

[0055] 5000, telescopic blocking mechanism; 5100, base frame; 5110, mounting part; 5120, adjusting part; 5121, first mounting hole; 5200, telescopic shaft; 5300, blocking shaft; 5400, driving part; 5500, connecting plate; 5510, guide through hole;

[0056] 6000, door lock roller. DETAILED DESCRIPTION

[0057] In order to make the above objectives, features and advantages of the present application more apparent and comprehensible, the specific embodiments of the present application will be 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, so the present application is not limited to the specific embodiments disclosed below.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] It is to be noted that when an element such as a layer, film, region, or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. In addition, it will be understood that when a layer is referred to as being "connected," "coupled," or "supported" to another layer, it can be directly connected, coupled, or supported to the other layer, or intervening layers can also be present. As used herein, the terms "vertical," "horizontal," "up," "down," "left," "right," and the like are used for explanation only and not to limit the embodiments of the present application.

[0063] Referring to Figure 1 and Figure 2 At least one embodiment of the present application provides a door closer structure, which comprises a door machine frame 1000, a top plate 3000, a base 4000, and a telescopic blocking mechanism 5000. The door machine frame 1000 is provided with a guide element. The top plate 3000 is fixed to the door machine frame 1000. The base 4000 is movably arranged on the door machine frame 1000 and is used to connect a car door. The base 4000 is provided with a wheel clamping door closer 4100 and a first swing arm structure 4200. The wheel clamping door closer 4100 is movably connected to the base 4000 through the first swing arm structure 4200 and is used to clamp a door lock roller 6000. The guide element is used to constrain the swing track of the wheel clamping door closer 4100. The telescopic blocking mechanism 5000 comprises a bottom bracket 5100, a telescopic shaft 5200, a blocking shaft 5300, and a driving member 5400. The bottom bracket 5100 is installed on the base 4000. The telescopic shaft 5200 and the blocking shaft 5300 are fixedly connected. The driving member 5400 is arranged between the bottom bracket 5100 and the telescopic shaft 5200. The driving member 5400 drives the telescopic shaft 5200 to extend to abut against the top plate 3000. When the wheel clamping door closer 4100 swings downward to clamp the door lock roller 6000, the blocking shaft 5300 limits the upward swing of the wheel clamping door closer 4100.

[0064] In some embodiments, the door machine frame 1000 is a basic supporting component of the entire door blade structure, the guide element is arranged on the door machine frame 1000, which functions to constrain the swing trajectory of the clamping wheel door blade 4100, and ensures that the clamping wheel door blade 4100 can move according to the preset path. The top plate 3000 can be fixed on the door machine frame 1000 by bolts, and cooperates with the telescopic shaft 5200 of the telescopic blocking mechanism 5000 to abut when the telescopic shaft 5200 is extended, controls the movement state of the telescopic shaft 5200, and further affects the limiting effect of the blocking shaft 5300 on the clamping wheel door blade 4100. The base 4000 is movably arranged on the door machine frame 1000 and connected to the car door. The clamping wheel door blade 4100 is a component directly acting on the door lock roller 6000, and is movably connected to the base 4000 through the first swing arm structure 4200 to realize the action of swinging down and swinging up, and complete the functions of clamping and releasing the door lock roller 6000. The clamping wheel door blade 4100 clamps the door lock roller 6000 through the swing action, thereby driving the landing door to move synchronously with the car door.

[0065] According to the door blade structure of the embodiment of the present application, when the clamping wheel door blade 4100 swings down until the door lock roller 6000 is clamped, the blocking shaft 5300 is located above the clamping wheel door blade 4100, the clamping wheel door blade 4100 enters the blocking coverage range of the blocking shaft 5300, and the blocking shaft 5300 stops the clamping wheel door blade 4100 from swinging up again. By constraining the swing trajectory of the clamping wheel door blade 4100 through the guide element, and limiting the swing up of the clamping wheel door blade 4100 through the telescopic blocking mechanism 5000, it is ensured that the clamping wheel door blade 4100 can accurately and stably clamp the door lock roller 6000, so that the car door and the landing door can keep synchronous during operation, the mutual movement of the car door and the landing door is avoided, the probability of failure of the elevator door during operation is reduced, and the stability and reliability of the elevator door system are improved.

[0066] During the operation of the elevator, if the landing door is accidentally blocked, etc., the door lock roller 6000 will generate a reverse force on the clamping wheel door blade 4100. Due to the limiting effect of the blocking shaft 5300, the clamping wheel door blade 4100 will not easily swing up to release the door lock roller 6000 due to the reverse force, thereby preventing the landing door from being accidentally opened, and ensuring the safety of passengers. The swing-down amplitude of the clamping wheel door blade 4100 can be changed according to the size of the door lock roller 6000, and it is not necessary to fix the swing to a specific angle. Through the above arrangement, the versatility of the door blade assembly is improved, so that the same kind of door blade assembly can be adapted to the door lock devices of multiple old elevators, the application range is larger, and multiple different door lock rollers 6000 can be matched.

[0067] Referring to Figure 3In some embodiments, the chassis 5100 is provided with a guide through hole 5510, the telescopic shaft 5200 and the blocking shaft 5300 pass through the guide through hole 5510 and slide along the axial direction of the blocking shaft 5300 with the chassis 5100. The telescopic blocking mechanism 5000 further comprises a connecting plate 5500, one end of the telescopic shaft 5200 away from the top plate 3000 is fixedly connected with one end of the blocking shaft 5300 away from the top plate 3000 through the connecting plate 5500. The guide through hole 5510 provides a movement track for the telescopic shaft 5200 and the blocking shaft 5300, so that the telescopic shaft 5200 and the blocking shaft 5300 can only perform telescopic movement along the axial direction of the guide through hole 5510 under the constraint of the guide through hole 5510, ensuring the accuracy and stability of the movement of the telescopic shaft 5200 and the blocking shaft 5300, avoiding deviation or shaking, and thus affecting the blocking effect of the wheel clamping door cutter 4100.

[0068] The telescopic shaft 5200 and the blocking shaft 5300 form an integral whole through the connecting plate 5500, and the connection mode can be threaded connection or welding. The threaded connection mode has the advantages of convenient installation and disassembly, and if it is found that a component is damaged during subsequent use, the component can be conveniently replaced. The welding can make the connection of the telescopic shaft 5200 and the blocking shaft 5300 more firm, ensure that the connection will not be loose during frequent telescopic movement, and ensure the stability of the overall structure. Users can select a specific connection mode according to specific use requirements.

[0069] In some embodiments, the driving member 5400 includes a spring arranged between the chassis 5100 and the front end shoulder of the telescopic shaft 5200. In the natural state, the spring drives the telescopic shaft 5200 and the blocking shaft 5300 to extend forward. When the door is opened, the wheel clamping door blade 4100 moves left with the base 4000, and under the action of gravity, the lower swing stops abutting against the door lock roller 6000. At the same time, the telescopic blocking mechanism 5000 installed on the base 4000 also moves left, and the distance from the top plate 3000 fixed to the door machine frame 1000 increases. The telescopic shaft 5200 originally abutting against the top plate 3000 and being retracted, after moving away from the top plate 3000, is driven by the spring force to extend forward together with the blocking shaft 5300. The spring is arranged between the guide part and the front end shoulder of the telescopic shaft 5200, and in the natural state, the spring force makes the telescopic shaft 5200 and the blocking shaft 5300 extend outward. When the telescopic blocking mechanism 5000 moves to a specific position, the blocking shaft 5300 is tangent to the pin shaft of the wheel clamping door blade 4100. If the door is closed and blocked, the door lock roller 6000 generates a reverse force on the wheel clamping door blade 4100, and without the restriction of the blocking shaft 5300, the wheel clamping door blade 4100 may swing upward to loosen the door lock roller 6000, resulting in door closing failure. The blocking shaft 5300 is tangent to the pin shaft to form a restriction, so that the wheel clamping door blade 4100 cannot swing upward even if it is subjected to a reverse force, and always clamps the door lock roller 6000, ensuring that the car door and the landing door move synchronously, avoiding mutual movement, and ensuring the safe and stable operation of the elevator door system.

[0070] Referring to Figure 1 In some embodiments, the guide element includes an arc-shaped groove 2000 fixed to the door machine frame 1000 and not moving with the opening and closing of the door. The wheel clamping door blade 4100 is provided with a door lifting roller 4110. During the closing process, the wheel clamping door blade 4100 moves close to the arc-shaped groove 2000 with the base 4000, and the arc-shaped groove 2000 abuts against the door lifting roller 4110 to make the wheel clamping door blade 4100 swing upward and swing to a higher position. During the opening process, the wheel clamping door blade 4100 moves away from the arc-shaped groove 2000 with the base 4000, and at the same time, the wheel clamping door blade 4100 swings downward to the right under the action of gravity until it abuts against the door lock roller 6000, and the downward swinging process ends.

[0071] In some embodiments, the wheel clamping door blade 4100 is provided with a shaft pin 4120. During the opening process, the telescopic blocking mechanism 5000 moves away from the arc-shaped groove 2000 with the base 4000, and the telescopic shaft 5200 extends under the driving of the driving member 5400 and is tangent to the top of the shaft pin 4120 to restrict the upward swing of the wheel clamping door blade 4100.

[0072] Referring to Figure 3In some embodiments, a first adjusting unit is arranged between the base frame 5100 and the base 4000, the first adjusting unit comprises a first adjusting sliding groove 4300, a first mounting hole 5121 and a first adjusting bolt (not shown in the figure), the first adjusting sliding groove 4300 is arranged on the base 4000 in the vertical direction, the first mounting hole 5121 is arranged on the base frame 5100, and the first adjusting bolt passes through the first mounting hole 5121 and the first adjusting sliding groove 4300 to fixedly connect the base 4000 and the base frame 5100. Through the first adjusting unit, the overall installation position of the telescopic blocking mechanism 5000 can be adjusted up and down.

[0073] Referring to Figure 3 In some embodiments, the base frame 5100 comprises a mounting portion 5110 and an adjusting portion 5120, and the telescopic shaft 5200 and the blocking shaft 5300 are fixedly connected through the mounting portion 5110. The adjusting portion 5120 is fixedly connected with the mounting portion 5110, and the first mounting hole 5121 is arranged on the adjusting portion 5120, and the adjusting portion 5120 is used to connect with the base 4000.

[0074] The mounting portion 5110 of the base frame 5100 is used to connect with the base 4000, and the first adjusting sliding groove 4300 is arranged on the base 4000, so that the overall position of the telescopic blocking mechanism 5000 can be flexibly adjusted during installation. To solve the problem that the size difference exists between the rollers of different old ladder lock devices, by adjusting the installation position of the telescopic blocking mechanism 5000 up and down, the blocking shaft 5300 can be accurately matched with the pin shaft of the wheel clamping door cutter 4100 when the wheel clamping door cutter 4100 clamps different size door lock rollers 6000, so as to ensure that the wheel clamping door cutter 4100 stably clamps the door lock roller 6000.

[0075] Referring to Figure 3 In some embodiments, a second adjusting unit is arranged between the top plate 3000 and the door machine frame 1000, the second adjusting unit comprises a second adjusting sliding groove 3110, a second mounting hole 1200 (see Figure 1 ) and a second adjusting bolt (not shown in the figure), the second adjusting sliding groove 3110 is arranged on the top plate 3000 in the axial direction of the telescopic shaft 5200. The second mounting hole 1200 is arranged on the door machine frame 1000 (see Figure 1 ). The second adjusting bolt passes through the second mounting hole 1200 and the second adjusting sliding groove 3110 to fixedly connect the top plate 3000 and the door machine frame 1000. Through the second adjusting unit, the overall installation position of the telescopic blocking mechanism 5000 can be adjusted horizontally.

[0076] Referring to Figure 3In some embodiments, the top plate 3000 comprises a blocking portion 3200 for abutting with the telescopic shaft 5200 to retract the telescopic shaft 5200, and a connecting portion 3100 fixedly connected with the blocking portion 3200, wherein the second adjusting slot 3110 is arranged on the connecting portion 3100, and the connecting portion 3100 is used for connecting with the door frame 1000.

[0077] Referring to Figure 1 In some embodiments, the base 4000 is provided with a door unlocking blade 4400 and a second swing arm structure 4500, the door unlocking blade 4400 is movably connected to the base 4000 through the second swing arm structure 4500, and is used for clamping the door lock roller 6000 in cooperation with the wheel clamping door blade 4100. The base 4000 is rotatably connected with a car door lock hook 4600; the door unlocking blade 4400 abuts against the car door lock hook 4600. When the door unlocking blade 4400 swings, the door unlocking blade 4400 drives the car door lock hook 4600 to rotate, so that the car door lock hook 4600 is reset. The base 4000 is fixed on the door hanging plate 1100, and a car door (not shown in the figure) is installed below the door hanging plate 1100. When the elevator car opens and closes the door, the car door, the door hanging plate 1100, the base 4000 and the components fixed on the base 4000 move as a whole. The door unlocking blade 4400 and the wheel clamping door blade 4100 are movably connected to the base 4000 through two swing arms respectively, and form a parallelogram mechanism, so that both of the door blades can swing left and right.

[0078] In some embodiments, the door unlocking blade 4400 is provided with an unlocking flange 4430, and the car door lock hook 4600 is provided with an unlocking roller 4610. The unlocking flange 4430 is in close contact with the unlocking roller 4610 of the car door lock hook 4600 and is tangent to the unlocking roller 4610. When the door unlocking blade 4400 swings to the right, the unlocking roller 4610 is abutted to make the car door lock hook 4600 lift up. When the door unlocking blade 4400 swings to the left to reset, the car door lock hook 4600 falls down and resets by its own weight (or spring force, not shown in the figure). The unlocking roller 4610 is always in close contact with the unlocking flange 4430, and the left and right swinging of the door unlocking blade 4400 is limited by a limiting piece.

[0079] Specifically, when the door needs to be opened, the unlocking door blade 4400 swings to the right. Since the unlocking flange 4430 is tangent to the unlocking roller 4610, as the unlocking door blade 4400 swings to the right, the unlocking flange 4430 gradually abuts against the unlocking roller 4610. This abutment generates an upward pushing force, causing the car door hook 4600 to be lifted. After the car door hook 4600 is lifted, the locking state of the car door is released, creating conditions for the car door to be opened. When the door opening operation is completed and the door needs to be closed, the unlocking door blade 4400 swings to the left to reset. At this time, the car door hook 4600 falls under the action of gravity; if there is spring force assistance, it falls under the combined action of gravity and spring force. In this process, the unlocking roller 4610 and the unlocking flange 4430 always maintain a light fit state, ensuring that the unlocking door blade 4400 can accurately act on the unlocking roller 4610 each time it swings, and realizing the lifting and falling of the car door hook 4600.

[0080] Referring to Figure 1 Further, in some embodiments, to prevent the unlocking door blade 4400 from swinging excessively, a limiting piece is arranged on the path of the left and right swinging of the unlocking door blade 4400. The presence of the limiting piece limits the swinging range of the unlocking door blade 4400, ensuring that it moves within a reasonable range. Specifically, the limiting piece includes a first limiting piece 4410 and a second limiting piece 4420. The first limiting piece 4410 limits the unlocking door blade 4400 at the limit position of the left swing of the unlocking door blade 4400; the second limiting piece 4420 limits the unlocking door blade 4400 at the limit position of the right swing of the unlocking door blade 4400. In this way, it can not only ensure that the unlocking door blade 4400 can reliably act on the unlocking roller 4610 when it swings, but also avoid damage to components or abnormal operation of the elevator door due to excessive swinging.

[0081] In some embodiments, when the door is closing to the completion of the door closing, in addition to the retracting of the telescopic shaft 5200 by arranging the top plate 3000, a magnet attraction or the like can also be used.

[0082] The working principle of the door blade structure in the embodiments of the present application and the elevator equipped with the same is as follows:

[0083] Referring to Figure 5 When the car door is completely closed:

[0084] The unlocking door blade 4400 swings to the left under the action of gravity and abuts against the abutting portion of the first limiting piece 4410;

[0085] The unlocking flange 4430 has a gap B with the second limiting piece 4420;

[0086] The unlocking roller 4610 of the lift door lock hook 4600 is in abutment with the unlocking flange 4430 of the unlocking door blade 4400, and the lifting roller 4110 is in abutment with the arc-shaped groove 2000, so that the clamping wheel door blade 4100 is lifted to a preset height;

[0087] The door lock roller 6000 is in clearance A with the unlocking door blade 4400;

[0088] The door lock roller 6000 is in clearance C1 with the clamping wheel door blade 4100;

[0089] The clearance between the door lock rollers 6000 is E1;

[0090] The clearance between the door lock rollers 6000 is D;

[0091] The telescopic shaft 5200 of the telescopic blocking mechanism 5000 is in complete contraction state due to the abutment of the top plate 3000, and the blocking shaft 5300 connected by the connecting plate 5500 is also in complete contraction state;

[0092] ②Referring to Figure 6 , the lift door is opened to a distance until the unlocking door blade 4400 is in contact with the door lock roller 6000:

[0093] The clearance A between the door lock roller 6000 and the unlocking door blade 4400 disappears, and the door lock roller 6000 and the unlocking door blade 4400 begin to abut against each other. During the left movement of the clamping wheel door blade 4100 following the base 4000 (fixed on the door hanging plate 1100), the lifting roller 4110 is always in abutment with the arc-shaped groove 2000 due to the weight;

[0094] The clearance between the door lock roller 6000 and the clamping wheel door blade 4100 becomes C2;

[0095] The clearance B, the size E1 between the door lock rollers 6000, and the clearance D between the door lock rollers 6000 do not change;

[0096] The telescopic blocking mechanism 5000 moves left with the base 4000, away from the top plate 3000, and the telescopic shaft 5200 and the blocking shaft 5300 are extended to a certain extent under the action of the spring force;

[0097] ③Referring to Figure 7 , the lift door is continuously opened to a distance until the right swing of the unlocking door blade 4400 ends (the lift door lock hook 4600 is lifted):

[0098] The door lock roller 6000 lifts the lift door lock hook 4600 by abutting against the unlocking door blade 4400, the clearance B disappears, and the lifting roller 4110 is always in abutment with the arc-shaped groove 2000 during the left movement of the clamping wheel door blade 4100 following the base 4000 (fixed on the door hanging plate 1100) due to the weight;

[0099] The gap between the door lock rollers 6000 and the clamping wheel door cutter 4100 becomes C3;

[0100] The gap D between the door lock rollers 6000 remains unchanged;

[0101] The telescopic shaft 5200 and the blocking shaft 5300 are further extended under the spring force;

[0102] (4) Referring to Figure 8 , the door continues to open for a distance until the door lock rollers 6000 contact each other (the layer door lock hook is lifted):

[0103] Since the right swing of the unlocking door cutter 4400 is limited by the limiting piece, the base 4000 and the unlocking door cutter 4400 continue to move left with the door;

[0104] Therefore, the unlocking door cutter 4400 reversely abuts against the door lock rollers 6000, so that the layer door lock hook is lifted, the gap between the door lock rollers 6000 becomes D1, and the distance between the door lock rollers 6000 becomes E2;

[0105] The clamping wheel door cutter 4100 is lowered to abut against the door lock rollers 6000, and the gap C disappears,

[0106] The cutter lifting roller 4110 is away from the arc-shaped groove 2000, the telescopic shaft 5200 and the blocking shaft 5300 are completely extended under the spring force, and the blocking shaft 5300 is located above the pin shaft of the clamping wheel door cutter 4100.

[0107] (5) Referring to Figure 9 , the door continues to open until the door is opened, and then the door is closed:

[0108] During the process of continuously opening the door and re-closing the door, since the pin shaft of the clamping wheel door cutter 4100 is abutted by the blocking shaft 5300, the clamping wheel door cutter 4100 cannot be restored to the upward swing, so the two door cutters always clamp the two door lock rollers 6000, so as to ensure that the door and the layer door cannot move relative to each other, until the door is about to be closed, the telescopic shaft 5200 is retracted by abutting against the top plate 3000, the blocking shaft 5300 is also retracted, and the space for the pin shaft of the clamping wheel door cutter 4100 to move upward is released, the cutter lifting roller 4110 is lifted to reset the clamping wheel door cutter 4100 by abutting against the arc-shaped groove 2000.

[0109] It can be understood that, referring to Figure 10 , when the distance E between the two door lock rollers 6000 is smaller, the installation position of the telescopic blocking mechanism 5000 is lower. Through the first adjusting unit, the overall installation position of the telescopic blocking mechanism 5000 is adjusted up and down, so as to adapt to more different distances between the door lock rollers 6000.

[0110] Any combination of the technical features in the above-described embodiments can be made, and for the sake of brevity, not all possible combinations are described, however, it is to be understood that the application embraces all such possible combinations.

[0111] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be pointed out that for ordinary skilled persons in the art, some modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A door knife structure, characterized in that, The door knife structure includes: A gantry crane frame, on which guide elements are provided; Top plate, which is fixed to the gantry crane frame; A base is movably mounted on the door operator frame for connecting the car door; a clamping wheel door knife and a first swing arm structure are provided on the base, the clamping wheel door knife is movably connected to the base through the first swing arm structure for clamping the door lock roller; the guide element is used to constrain the swing trajectory of the clamping wheel door knife. A telescopic blocking mechanism includes a base frame, a telescopic shaft, a blocking shaft, and a driving component. The base frame is mounted on the base, the telescopic shaft and the blocking shaft are fixedly connected, and the driving component is disposed between the base frame and the telescopic shaft. The driving component drives the telescopic shaft to extend to abut against the top plate. When the clamping wheel door knife swings down to clamp the door lock roller, the blocking shaft restricts the upward swing of the clamping wheel door knife.

2. The door knife structure according to claim 1, characterized in that, The base frame is provided with a guide through hole, and the telescopic shaft and the blocking shaft pass through the guide through hole and slide in cooperation with the base frame along the axial direction of the blocking shaft; The telescopic blocking mechanism also includes a connecting plate, and the end of the telescopic shaft away from the top plate is fixedly connected to the end of the blocking shaft away from the top plate through the connecting plate.

3. The door knife structure according to claim 2, characterized in that, The driving component includes: A spring is disposed between the base frame and the front shoulder of the telescopic shaft. In its natural state, the elastic force of the spring drives the telescopic shaft and the blocking shaft to extend forward.

4. The door knife structure according to claim 1, characterized in that, The guide element includes an arc-shaped groove, which is fixed to the gantry frame; The clamping wheel door knife is equipped with a lifting roller; During the closing process, the clamping door knife follows the base and approaches the arc-shaped groove, the arc-shaped groove abuts against the lifting roller, causing the clamping door knife to swing up and lift; During the opening process, the clamping wheel door knife follows the base away from the arc-shaped groove, and the clamping wheel door knife swings down until it abuts the door lock roller.

5. The door knife structure according to claim 4, characterized in that, The clamping wheel door knife is equipped with a pivot pin; During the door opening process, the telescopic blocking mechanism moves away from the arc-shaped groove along with the base, and the telescopic shaft extends under the drive of the driving component, causing the blocking shaft to be positioned above the shaft pin, thereby restricting the upward swing of the clamping wheel door knife.

6. The door knife structure according to claim 1, characterized in that, A first adjustment unit is provided between the base frame and the base plate, the first adjustment unit comprising: A first adjusting slide groove is formed vertically on the base; The first mounting hole is formed on the base frame; The first adjusting bolt passes through the first mounting hole and the first adjusting groove to fix the base and the base frame together.

7. The door knife structure according to claim 6, characterized in that, The base frame includes: The mounting part is used to fix the telescopic shaft and the blocking shaft together. An adjustment part is fixedly connected to the mounting part, and the first mounting hole is formed in the adjustment part. The adjustment part is used to connect with the base.

8. The door knife structure according to claim 1, characterized in that, A second adjustment unit is provided between the top plate and the gantry crane frame, the second adjustment unit comprising: The second adjusting slide is formed on the top plate along the axial direction of the telescopic shaft; The second mounting hole is formed on the gantry crane frame; The second adjusting bolt passes through the second mounting hole and the second adjusting groove to fix the top plate to the gantry frame.

9. The door knife structure according to claim 8, characterized in that, The top plate includes: A blocking part is provided, which is used to abut against the telescopic shaft to retract the telescopic shaft; A connecting part is fixedly connected to the blocking part, and a second adjusting groove is formed in the connecting part. The connecting part is used to connect with the gantry frame.

10. The door knife structure according to claim 1, characterized in that, The base is provided with a door unlocking knife and a second swing arm structure. The door unlocking knife is movably connected to the base through the second swing arm structure and is used to cooperate with the clamping wheel knife to clamp the door lock roller. A car door lock hook is rotatably connected to the base; the door unlocking knife abuts against the car door lock hook; When the door unlocking knife swings, it drives the car door lock hook to rotate, causing the car door lock hook to reset.

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