Integrated elevator synchronous car door lock door knife

Abstract

The utility model discloses an integrated elevator synchronous car door lock door knife, which relates to the technical field of elevators, and comprises a door knife bottom plate component, a door knife arm component, a rocker component, a door knife lock hook component and a limiting plate component, and the rocker component, the limiting plate component, the door knife lock hook component and the door knife arm component are respectively riveted on the front surface and the back surface of a door knife bottom plate. According to the car door lock door knife, the lifting hook plate assembly is driven by the rocker assembly, the lifting hook plate assembly is meshed with the linkage plate fixed to the door knife arm assembly to drive the door knife arm assembly to be folded and unfolded, and then linkage with an elevator landing door is achieved. The car door lock door knife can achieve the effect that the left door knife arm and the right door knife arm can be unlocked, and the overall structure is simpler and more efficient. And meanwhile, the emergency unlocking plate assembly is arranged on the door vane, when the car door cannot be normally opened in case of emergency of the elevator, rescue workers can pull a steel wire rope on the emergency unlocking plate assembly outside the car to lift the door vane lock hook, then the car door is opened, and the situation that the workers are trapped in the car and cannot come out is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, and particularly relates to an integrated elevator synchronous car door lock knife. Background Art

[0002] With the implementation of relevant new specifications of the national standards in the elevator industry, the integrated car door lock knife is widely used in the industry. Based on the requirements of the latest national standards in the elevator industry, when the elevator car is in a non-unlocking area, the elevator car door cannot be opened. When the elevator car is in the unlocking area, the car door should be able to be opened both inside and outside the car. In order to meet the required functions, the existing car door lock knives generally adopt a single knife arm floating or multi-link mechanism to achieve the unlocking of the knife lock hook. This method has a complex structure and poor stability, and it is difficult for rescue personnel to open the car door in case of an emergency in the elevator. Content of the Utility Model

[0003] In view of the problems existing in the existing elevator car door lock knife, the present utility model is proposed.

[0004] Therefore, the purpose of the present utility model is to provide an integrated elevator synchronous car door lock knife, which solves the disadvantages of the existing elevator car door lock knife generally adopting a single knife arm floating or multi-link mechanism to achieve the unlocking of the knife lock hook, with a complex structure and poor stability.

[0005] In order to achieve the above purpose, the present utility model provides the following technical solutions:

[0006] An integrated elevator synchronous car door lock knife includes a knife base plate assembly, a knife arm assembly, a knife lock hook assembly, a limit plate assembly, and a rocker assembly. The knife arm assembly includes a swing plate assembly, a knife arm, and a linkage plate. The linkage plate is fixedly connected to the right knife arm. A hook lifting plate assembly is hinged on the rocker assembly, and a linkage bearing is riveted on the hook lifting plate assembly and meshes with the waist-shaped hole arranged on the linkage plate. The hook lifting plate assembly is tangent to the hook lifting bearing arranged on the knife lock hook assembly.

[0007] Further, the knife arm assembly includes a knife arm, a swing plate assembly, and a linkage plate. The rotation center of the knife arm assembly, the knife arm assembly rotation shaft, is riveted on the knife base plate assembly. The upper and lower swing plate assemblies and the left and right knife arms are respectively hinged together to form a parallelogram.

[0008] Further, the rocker assembly includes a limit bearing, a rocker, a hook lifting plate assembly rotating shaft, a hook lifting plate assembly limit shaft, and a hook lifting plate assembly. A hook lifting plate limit hole is arranged on the hook lifting plate assembly.

[0009] Further, the limit plate assembly includes a limit plate, a limit plate torsion spring, and an unlocking ball. The limit plate assembly and the knife base plate assembly are riveted on the limit plate assembly rotation shaft. The front end of the limit plate is provided with a limit working surface that is tangent to the limit bearing.

[0010] Furthermore, the hook lifting plate assembly includes a linkage bearing and a hook lifting plate, and the upper arc surface of the hook lifting plate is tangent to the hook lifting bearing arranged on the door knife locking hook assembly.

[0011] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:

[0012] In the present utility model, the left and right door knife arms are hinged together through a swing plate assembly to realize the linkage of the left and right knife arms, drive the movement of the linkage plate on the right door knife arm, and the left and right movement of the linkage plate drives the movement of the linkage bearing in the waist-shaped slot to rotate the hook lifting plate assembly to realize the action of lifting the hook and unlocking the door knife locking hook. The left and right door knife arms can be linked to unlock, without a complex connecting rod mechanism, and the structure is simple and stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0014] Figure 1 It is a front three-dimensional structural schematic diagram of the present utility model;

[0015] Figure 2 It is a back three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 3 It is a partial three-dimensional structural schematic diagram of the linkage plate of the present utility model;

[0017] Figure 4 It is a partial three-dimensional structural schematic diagram of the rocker assembly of the present utility model.

[0018] Names and serial numbers of components in the figure: 1 - Door knife bottom plate assembly, 2 - Door knife arm assembly, 3 - Door knife lock hook assembly, 4 - Limit plate assembly, 5 - Rocker assembly, 101 - Door knife bottom plate, 102 - Rotation shaft of door knife arm assembly, 103 - Rotation shaft of door knife lock hook assembly, 104 - Emergency unlocking plate assembly, 105 - Rotation shaft of rocker assembly, 106 - Rotation shaft of limit plate assembly, 107 - Limit shaft of rocker assembly, 201 - Swing plate assembly, 202 - Door knife arm, 203 - Linking plate, 301 - Lifting hook bearing, 302 - Door knife lock hook, 401 - Limit plate, 402 - Torsion spring of limit plate, 403 - Unlocking ball, 501 - Limit bearing, 502 - Rocker, 503 - Rotation shaft of lifting hook plate assembly, 504 - Limit shaft of lifting hook plate assembly, 505 - Lifting hook plate assembly, 2031 - Linking kidney-shaped hole, 4011 - Working surface of limit plate, 5021 - Limit kidney-shaped hole of rocker, 5051 - Linking bearing, 5052 - Arc surface of lifting hook plate, 50521 - Limit hole of lifting hook plate. Detailed implementation manners

[0019] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0020] An embodiment of the present invention discloses an integrated elevator synchronous car door lock door knife.

[0021] As Figures 1-4 shown, it includes a door knife bottom plate assembly 1, a door knife arm assembly 2, a door knife lock hook assembly 3, a limit plate assembly 4, and a rocker assembly 5. The door knife arm assembly 2, the door knife lock hook assembly 3 are riveted back-to-back with the limit plate assembly 4 and the rocker assembly 5 on both sides of the door knife bottom plate assembly 1. The door knife bottom plate assembly 1 includes a door knife bottom plate 101, a rotation shaft 102 of the door knife arm assembly, a rotation shaft 103 of the door knife lock hook assembly, an emergency unlocking plate assembly 104, a rotation shaft 105 of the rocker assembly, a rotation shaft 106 of the limit plate assembly, and a limit shaft 107 of the rocker assembly.

[0022] The door knife arm assembly 2 includes an upper and lower swing plate assembly 201, left and right door knife arms 202, and a linking plate 203. The upper and lower swing plate assembly 201 is riveted to the rotation shaft 102 of the door knife arm assembly. The upper and lower swing plate assembly 201 is hinged to the left and right door knife arms 202. The linking plate 203 is fixed to the right door knife arm 202.

[0023] The door knife lock hook assembly 3 includes a lifting hook bearing 301 and a door knife lock hook 302. The door knife lock hook assembly 3 is riveted to the rotation shaft 103 of the door knife lock hook assembly.

[0024] The limit plate assembly 4 includes a limit plate 401, a limit plate torsion spring 402, and an unlocking ball 403. The limit plate assembly 4 is riveted to the limit plate assembly rotating shaft 106. The limit plate torsion spring 402 centers on the limit plate assembly rotating shaft 106 to reset the limit plate 401. The working surface 4011 of the limit plate is in tangential fit with the limit bearing 501.

[0025] The rocker arm assembly 5 includes a limit bearing 501, a rocker arm 502, a lifting hook plate assembly rotating shaft 503, a lifting hook plate assembly limit shaft 504, and a lifting hook plate assembly 505. The lifting hook plate assembly 505 is riveted to the lifting hook plate assembly rotating shaft 503. The lifting hook plate limit hole 50521 is in fit with the lifting hook plate assembly limit shaft 504. The lifting hook plate arc surface 5052 is tangent to the lifting hook bearing 301. The rocker arm limit waist hole 5021 is in fit with the rocker arm assembly limit shaft 107. The linkage bearing 5051 is tangent to the two side planes of the linkage waist-shaped hole 2031.

[0026] In the utility model, when in use, the mechanism linkage made of the above components realizes the opening and closing of the door knife, and cooperates with the hall door lock to achieve the function of the door lock opening and closing when the hall car door is linked. The elevator is in the state of closing the door at the level, and the door knife arm 202 is closed. When the elevator opens the door, the rocker assembly 5 rotates around the rocker assembly rotation axis 105 under the drive of the door machine synchronous belt to the other side of the rocker limit waist hole 5021 and the rocker assembly limit axis 107. At the same time, the lifting hook plate assembly 505 on the rocker assembly 5 rotates synchronously around the rocker assembly rotation axis 105, and the linkage bearing 5051 rotates with the lifting hook plate assembly 505 to drive the linkage plate 203, and the linkage plate 203 drives the door knife arm assembly 2 to rotate around the door knife arm assembly rotation axis 102, so that the door knife arm is opened. In this process, the arc surface 5052 of the lifting hook plate is tangent to the lifting hook bearing 301. If the elevator does not have a hall door lock in the non-unlocking area at this time, the lower side of the lifting hook plate limiting hole 50521 is tangent to the lifting hook plate assembly limiting axis 504, and the door knife lock hook assembly 3 is not lifted. When the elevator is in the unlocking area with a hall door lock, the door knife arm 202 will be blocked by the hall door lock and will be retracted to a certain size. At this time, the door knife arm 202 drives the linkage plate 203 to move in the retraction direction of the door knife arm 202, and the linkage bearing 5051 moves with the linkage plate 203, driving the lifting hook plate assembly 505 to rotate around the lifting hook plate assembly rotating shaft 503 to the upper side of the lifting hook plate limiting hole 50521 and tangent to the lifting hook plate assembly limiting axis 504. At this time, the lifting hook plate arc surface 5052 presses the lifting hook bearing 301 to make the door knife lock hook assembly 3 rotate around the door knife lock hook assembly rotating axis 103 to lift and unlock, and the door machine continues to operate normally to open the door. On the contrary, when the elevator door is closed, the rocker assembly 5 rotates back to its original position around the rocker assembly rotating shaft 105 driven by the door machine synchronous belt, and the hook plate assembly 505 rotates synchronously around the rocker assembly rotating shaft 105, the linkage bearing 5051 drives the linkage plate 203 to move, the door knife arm assembly 2 is retracted, and the lower side of the hook plate limiting hole 50521 is tangent to the hook plate assembly limiting shaft 504, the door knife lock hook assembly 3 is not lifted, and the door lock is closed normally.

[0027] In this embodiment, when a person stands on the hall door side and prys the door open, the door machine is in the closed state and the door knife arm assembly 2 is retracted. When the hall door is opened, the hall door lock ball wheel squeezes the right door knife arm 202 to make the door knife arm continue to move towards the retracted state. At this time, the movement of the door knife arm 202 drives the linkage plate 203, and the linkage plate 203 drives the lifting hook plate assembly 505 to rotate to the upper side of the lifting hook plate limiting hole 50521 and the lifting hook plate assembly limiting axis 504 by driving the linkage bearing 5051. At this time, the arc surface 5052 of the lifting hook plate presses the lifting hook bearing 301 to make the door knife lock hook assembly 3 rotate around the door knife lock hook assembly rotation axis 103 to lift and unlock.

[0028] In this embodiment, when a person stands inside the car and pries the door open, when the elevator is in the unlocking area, the door machine is in the fully closed state at this time, and the door knife arm assembly 2 is retracted. When the door machine is pried open, the landing door lock ball wheel presses the left door knife arm 202 to make the door knife arm continue to move towards the retracted state. At this time, the movement of the door knife arm 202 drives the linkage plate 203, and the linkage plate 203 drives the linkage bearing 5051 to drive the hook plate assembly 505 to rotate to the upper side of the hook plate limit hole 50521 and be tangent to the hook plate assembly limit shaft 504. At this time, the arc surface 5052 of the hook plate presses the hook bearing 301 to make the door knife lock hook assembly 3 rotate around the door knife lock hook assembly rotation shaft 103 to lift the lock hook and unlock. When the elevator is in a non-unlocking area, at this time, when a person stands inside the car and pries the door open, there is no landing door lock ball wheel pressing the door knife arm 202, the door knife arm assembly 2 does not move, and the associated components do not move, and the door knife lock hook assembly 3 does not move and does not unlock.

[0029] In this embodiment, when the elevator is in an emergency state, the car door cannot be opened in the normal way. At this time, the rescue personnel outside the car can pull the steel wire rope on the emergency unlocking plate assembly to lift the door knife lock hook, and then open the car door to prevent people from being trapped in the car and unable to get out.

[0030] Only some exemplary embodiments of the present invention have been described by way of illustration above. Without doubt, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An integrated elevator synchronous car door lock door knife, comprising a door knife base plate assembly (1), a door knife arm assembly (2), a door knife lock hook assembly (3), a limit plate assembly (4), and a rocker assembly (5), characterized in that: The door knife arm assembly (2) comprises a swing plate assembly (201), a door knife arm (202) and a linkage plate (203), wherein the linkage plate (203) is fixedly connected to the right door knife arm (202), a lifting hook plate assembly (505) is hingedly connected to the rocker assembly (5), a linkage bearing (5051) is riveted on the lifting hook plate assembly (505) and is engaged with a linkage waist-shaped hole (2031) arranged on the linkage plate (203), the lifting hook plate assembly (505) is tangent to the lifting hook bearing (301) arranged on the door knife lock hook assembly (3), and an emergency unlocking plate assembly (104) is fixed on the door knife bottom plate assembly (1).

2. The integrated elevator synchronous car door lock knife according to claim 1, characterized in that: The door knife arm assembly (2) comprises a door knife arm (202), a swing plate assembly (201), and a linkage plate (203); the door knife arm assembly rotation axis (102), the rotation center of the door knife arm assembly (2), is riveted to the door knife base plate assembly (1); the upper and lower swing plate assemblies (201) and the left and right door knife arms (202) are respectively hinged together to form a parallelogram.

3. The integrated elevator synchronous car door lock knife according to claim 2, characterized in that: The rocker assembly (5) comprises a limit bearing (501), a rocker (502), a hook lifting plate assembly rotating shaft (503), a hook lifting plate assembly limit shaft (504), and a hook lifting plate assembly (505), and a hook lifting plate limit hole (50521) is arranged on the hook lifting plate assembly (505).

4. The integrated elevator synchronous car door lock knife according to claim 3, characterized in that: The limit plate assembly (4) comprises a limit plate (401), a limit plate torsion spring (402), and an unlocking ball (403); the limit plate assembly (4) and the door knife base plate assembly (1) are riveted to the limit plate assembly rotation axis (106); a limit plate working surface (4011) is arranged at the front end of the limit plate (401) and is tangent to the limit bearing (501).

5. The integrated elevator synchronous car door lock knife according to claim 3, characterized in that: The hook lifting plate assembly (505) comprises a linkage bearing (5051) and a hook lifting plate (5052), and the arc surface at the upper end of the hook lifting plate (5052) is tangent to the hook lifting bearing (301) arranged on the door knife lock hook assembly (3).

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