CN213505525U

CN213505525U - Asynchronous door knife device

Info

Publication number: CN213505525U
Application number: CN202021609888.6U
Authority: CN
Inventors: 徐洪申; 吕威
Original assignee: Ningbo Shenling Electromechanical Technology Co ltd
Current assignee: Ningbo Shenling Electromechanical Technology Co ltd
Priority date: 2020-08-05
Filing date: 2020-08-05
Publication date: 2021-06-22
Anticipated expiration: 2030-08-05

Abstract

The invention discloses an asynchronous door knife device, which is used for a car door machine. The asynchronous door knife device comprises: the door knife rest assembly comprises a door knife bottom plate and a limiting frame, the door knife bottom plate comprises a transmission hole which penetrates through, and the rocker assembly is rotatably connected to the door knife bottom plate. The car door lock hook assembly comprises a lock hook plate, a lock hook body and a first reset assembly, wherein the first reset assembly is elastically connected with the door knife bottom plate, and the lock hook plate comprises a driving groove. The cutter arm hinge assembly comprises a transmission shaft, and the transmission shaft penetrates through the transmission hole and is connected with the driving groove in an inserting mode. When the car door is opened, the rocker component rotates relative to the door knife bottom plate under the action of elastic pretightening force, the lock hook plate rotates relative to the rocker component, and the lock hook body abuts against the limiting frame under the action of the elastic pretightening force of the first reset component and moves in the direction away from the car door in the opening direction until the knife arm hinge component rotates to be away from the limiting frame when being located at the clamping position.

Description

Asynchronous door knife device

Technical Field

The invention relates to the technical field of elevators, in particular to an asynchronous door vane device.

Background

The asynchronous door knife device is mounted on the lift car and moves along with the lift car to clamp a door ball assembly on the landing door device so as to open the landing door device. Because the asynchronous door vane has the characteristic of firstly opening the door and then unlocking the door vane device, the problem that the lock hook of the asynchronous door vane device is locked with the fixed hook of the car door and cannot be opened easily occurs in the door opening process. And when the door machine is closed in place, the locking hook of the asynchronous door knife device impacts the fixed hook of the car door, so that abnormal sound and the like during closing are caused, and improvement is needed.

Disclosure of Invention

The invention aims to provide an asynchronous door knife device.

The technical scheme adopted by the invention is as follows: the utility model provides an asynchronous door sword device for sedan-chair door machine, sedan-chair door machine is including locating baffle and sedan-chair door, asynchronous door sword device includes:

the door knife rest assembly comprises a door knife bottom plate and a limiting frame arranged on the door knife bottom plate, and the door knife bottom plate comprises a transmission hole which penetrates through the door knife bottom plate;

the rocker component is rotatably connected to the door knife bottom plate, an elastic pre-tightening force rotating towards the direction of the limiting frame is formed between the rocker component and the door knife bottom plate, and the rocker component abuts against the in-place baffle when the car door is closed in place;

the car door lock hook assembly comprises a lock hook plate rotatably connected to the rocker assembly, a lock hook body fixedly arranged on the lock hook plate and a first reset assembly capable of rotating on the lock hook plate, the first reset assembly is elastically connected to the door vane bottom plate, the limiting frame is positioned on a rotating path of the lock hook body and is arranged at intervals with the first reset assembly, and the lock hook plate comprises a driving groove; the lock hook body abuts against the limiting frame under the action of elastic pretightening force of the first reset component when the car door is closed in place;

the tool arm hinge assembly is rotatably connected to the door knife bottom plate and arranged opposite to the car door lock hook assembly, the tool arm hinge assembly comprises a left tool arm, a right tool arm, an upper swing rod, a lower swing rod and a transmission shaft arranged on the upper swing rod, the upper swing rod and the lower swing rod are arranged in parallel, two ends of the upper swing rod and two ends of the lower swing rod are respectively hinged with the left tool arm and the right tool arm, and the transmission shaft penetrates through the transmission hole and is connected with the driving groove in an inserting mode;

when the car door is opened, the rocker component rotates relative to the door knife bottom plate under the action of elastic pretightening force, the lock hook plate rotates relative to the rocker component, and the lock hook body abuts against the limiting frame under the action of the elastic pretightening force of the first reset component and moves in the direction back to the car door opening direction until the knife arm hinge component rotates to be far away from the limiting frame when being located at the clamping position.

In one embodiment, the rocker assembly comprises a rocker frame, a first rotating member and a second resetting assembly, the first rotating member and the second resetting assembly are mounted on the rocker frame, the rocker frame is rotatably connected with the door knife base plate through the first rotating member, and the second resetting assembly is elastically connected with the door knife base plate and is located between the first resetting assembly and the first rotating member.

In one embodiment, the rocker frame comprises a first limiting hole in an arc long hole shape, an arc center line of the first limiting hole is coaxial with an axis of the first rotating member, the door knife rest assembly comprises a first limiting shaft mounted on the door knife base plate, and the first limiting shaft is inserted into the first limiting hole.

In an embodiment, the rocker assembly further comprises a second rotating member mounted on the rocker frame, the rocker frame further comprises a second limiting hole in an arc-shaped long hole shape, an arc center line of the second limiting hole coincides with an axis of the second rotating member and is located between the first limiting hole and the second reset assembly, the car door lock hook assembly comprises a second limiting shaft mounted on the lock hook plate, the lock hook plate is rotatably connected to the second rotating member, and the second limiting shaft is connected to the second limiting hole in an inserting manner.

In one embodiment, the rocker assembly comprises a pushing frame mounted on the rocker frame, the pushing frame is located between the first rotating member and the second resetting assembly, the pushing frame abuts against the in-place baffle and drives the rocker frame to rotate when the car door is closed in place, and the second resetting assembly compresses and pre-tightens.

In one embodiment, the extension and retraction directions of the first reduction assembly and the second reduction assembly are parallel to each other.

In one embodiment, the driving slot is a long hole, the driving slot includes two opposite and parallel side walls, and the transmission shaft is tangent to the side walls.

In one embodiment, the locking hook body includes a leg portion and a barb portion protruding from the leg portion, and the leg portion extends in a direction perpendicular to a side wall of the driving groove.

In one embodiment, the asynchronous door vane device further comprises a return limiting assembly rotatably connected to the door vane base plate, and the return limiting assembly is slidably connected to the rocker assembly; when the knife arm hinge assembly is located at the clamping position, the return limiting assembly pushes the rocker assembly to abut against the door knife bottom plate.

In an embodiment, the return limiting assembly comprises a limiting plate, a locking member and an unlocking member, the locking member is installed on the limiting plate, the limiting plate comprises a hinged portion, a first support arm and a second support arm, the first support arm and the second support arm are intersected to the hinged portion, the first support arm is inclined relative to the second support arm, the hinged portion is rotatably connected to the door knife bottom plate, the locking member is installed on the first support arm and is in sliding connection with the rocker assembly, and the unlocking member is installed on the second support arm and faces away from the rocker assembly in a direction extending.

After adopting the structure, compared with the prior art, the invention has the advantages that: the latch hook plate is rotatably connected to the rocker assembly, so that the latch hook body abuts against the limiting frame at the initial stage of door opening and moves along the direction deviating from the door opening direction, the spacing between the latch hook body and a fixed hook on a car door machine is basically kept stable, and the problem of locking caused by reduction of the spacing between the latch hook body and the fixed hook is avoided. Similarly, the lock hook body rotates to abut against the limiting frame when the lock hook plate rotates to the door closing position relative to the rocker assembly so as to lock the fixed hook and avoid impacting the fixed hook.

Drawings

The invention is further illustrated with reference to the following figures and examples:

fig. 1 is a schematic perspective view of an asynchronous door vane device according to the present invention.

Figure 2 is a schematic structural view of a car door latch hook assembly in a locked position in the asynchronous door vane device of the present invention.

Fig. 3 is a schematic structural view of the car door latch hook assembly in the unlocked position in the asynchronous door vane device of the present invention.

Fig. 4 is a schematic structural view of the door frame assembly of the present invention.

FIG. 5 is a schematic view of the rocker assembly of the present invention.

Figure 6 is a schematic structural view of the door latch hook assembly of the present invention.

Fig. 7 is a schematic front structural view of the asynchronous door vane device of the present invention.

In the figure: a door frame assembly 10; a limiting frame 11; a door vane bottom plate 12; a drive hole 121; a first stopper shaft 13; a carriage 14; mounting a shaft 15; a third stopper shaft 16; a rocker assembly 20; a rocker frame 21; a first stopper hole 211; a second limiting hole 212; a limit groove 213; a first rotating member 22; a second rotating member 23; a push frame 24; a second reduction member 25; a door latch hook assembly 30; a latch plate 31; a drive slot 311; a first reduction assembly 32; a reset lever 321; a return spring 322; a latch hook body 33; the arm support portions 331; a barb 332; a second stopper shaft 34; an insertion needle plate 35; the slide groove 351; a knife arm hinge assembly 40; a transmission shaft 41; a left blade arm 41; a right blade arm 42; an upper swing link 43; a lower swing link 44; a return limit assembly 50; a position restricting plate 51; the first arm 511; a second support arm 512; a hinge 513; a locking member 52; an unlocking member 53; an in-position baffle 60; the unlocking plate 61.

Detailed Description

The following description is only a preferred embodiment of the present invention, and does not limit the scope of the present invention.

In an embodiment, as shown in fig. 1 to 4, an asynchronous door vane device is used for a door gate machine including a door, an in-place fence 60, and a stationary hook, and includes a door vane frame assembly 10, a rocker assembly 20, a door latch hook assembly 30, a vane arm hinge assembly 40, and a return limit assembly 50. The door knife rest assembly 10 comprises a door knife bottom plate 12 and a limiting frame 11 installed on the door knife bottom plate 12, and the door knife bottom plate 12 comprises a transmission hole 121 which penetrates through the transmission hole. The limiting frame 11 is mounted on the door vane bottom plate 12 and protrudes out of the surface of the door vane bottom plate 12 to form a fixed lug or a rotating part moving relative to the door vane bottom plate 12, and the rotating axis of the limiting frame 11 is perpendicular to the door vane bottom plate 12.

The rocker assembly 20 is rotatably connected to the door vane base plate 12, and an elastic pre-tightening force rotating towards the direction of the limiting frame 11 is provided between the rocker assembly 20 and the door vane base plate 12. The elastic pre-tightening force can be an elastic force generated by compression of the compression spring, an elastic force generated by twisting of the torsion spring, an elastic force generated by extension of the tension spring and the like. The rocker assembly 20 abuts the in-position stop 60 via the push member 24 attached thereto before the door is closed to the closed position. Under continued door closing actuation, the position stop 60 reacts against the push member 24 and causes the rocker assembly 20 to rotate counterclockwise (as viewed in FIG. 7) until the rocker assembly 20 is locked relative to the vane platform 12. Specifically, the first limiting hole 21 of the rocker assembly 20 is in inserting fit with the first limiting shaft 13 of the door vane base plate 12, and is limited and stopped with the first limiting shaft 13 at one end of the first limiting hole 211, so as to lock the relative position between the rocker assembly 20 and the door vane base plate 12. In this process, the elastic pretightening force of the rocker assembly 20 and the door vane base plate 12 is gradually increased to improve the resetting effect of the rocker assembly 20. Specifically, rocker assembly 20 includes a second return assembly 25 connected to door vane base plate 12, the spring of second return assembly 25 being compressed to store energy during rotation of the rocker assembly, and second return assembly 25 being secured to end slide bracket 14 fixed to door vane base plate 12.

As shown in fig. 1 and 6, the car door latch hook assembly 30 includes a latch hook plate 31 rotatably connected to the rocker assembly 20, a latch hook body 33 fixedly disposed on the latch hook plate 31, and a first restoring member 32 rotatably disposed on the latch hook plate 31, wherein the latch hook body 33 is cantilevered outward from the latch hook plate 31. Alternatively, the locking hook body 33 and the locking hook plate 31 are integrally formed, or the locking hook body 33 and the locking hook plate 31 are detachably connected, and the relative positions of the two are fixed. Alternatively, the latch body 33 includes a support arm 331 and a barb 332 protruding from the support arm 331, and the barb 332 is configured to engage with a hook of the car door to lock the car door machine.

The first reset component 32 is elastically connected to the door vane bottom plate 12, wherein an elastic acting force of the first reset component 32 acts on the latch plate 31, so that the latch plate 31 has an elastic pre-tightening force rotating towards the direction of the limiting frame 11, and the limiting frame 11 is located on a rotating path of the latch body 33 and is spaced from the first reset component 32, so as to limit a rotating position of the latch body 33 of the latch plate 31. The latch body 33 abuts against the limiting frame 11 under the action of the elastic pre-tightening force of the first resetting component 32 when the car door is closed to the proper position.

Knife arm hinge assembly 40 is rotatably connected to door vane base plate 12 and is disposed opposite to door latch hook assembly 30, i.e., knife arm hinge assembly 40 and door latch hook assembly 30 are respectively disposed on opposite side surfaces of door vane base plate 12. The knife arm hinge assembly 40 comprises a transmission shaft 41, the latch plate 31 comprises a driving groove 311, and the transmission shaft 41 penetrates through the transmission hole 121 and is in plug connection with the driving groove 311. The blade arm hinge assembly 40 and the latch plate 31 are power-transmitted through a transmission shaft 41. Optionally, the driving slot 311 is a long hole, the driving slot 311 includes two opposite and parallel side walls, and the transmission shaft 41 is tangent to the side walls.

When the car door is opened, the rocker assembly 20 is driven by the spring force of the second reset assembly 25 to rotate relative to the door vane bottom plate 12, the latch plate 31 rotates relative to the rocker assembly 20, and the latch body 33 abuts against the limiting frame 11 under the elastic pretightening force of the first reset assembly 32 and moves away from the car door opening direction until the knife arm hinge assembly 40 rotates away from the limiting frame 11 when being located at the clamping position. Wherein, the position of the knife arm hinge assembly 40 is the clamping position, which is the position when the knife arm hinge assembly 40 clamps the gate ball of the landing door device. Alternatively, the extending direction of the arm portion 331 is perpendicular to the side wall of the driving slot 311, so that the arm portion 331 can move along the limiting frame 11 approximately in a straight line during the rotation of the driving shaft 41 driving the latch plate 31, and the moving amount of the arm portion 331 is substantially the same as the opening amount of the car door. For example, the linear sliding distance of the latch plate 31 with respect to the stopper 11 is 8mm to 16mm so that the latch body 33 is not locked to the hook at the initial stage of opening the car door. Specifically, the linear sliding distance of the latch plate 31 in cooperation with the limiting frame 11 is 8mm, 10mm, 12mm, 15mm, 16mm, or the like.

When the car door is closed to the proper position, the rocker assembly 20 abuts against the proper position stop 60 and rotates to the limit position relative to the door frame assembly 10, the latch plate 31 rotates towards the limit frame 11 under the action of the rotational driving force of the rocker assembly 20 and the elastic force of the first reset assembly 32, and rotates to abut against the limit frame 11 after the arm hinge assembly 40 is opened. The knife arm hinge assembly 40 opens to release the gate ball of the landing door assembly to enable movement of the door operator. The first reset component 32 includes a reset rod 321 and a reset spring 322 sleeved on the reset rod 321, wherein one end of the reset rod 321 is rotatably connected to the latch plate 31, the other end of the reset rod is connected to the carriage 14 of the door vane base plate 12 in an inserting manner, and the reset spring 322 abuts against the carriage 14, so that the latch plate 31 rotates towards a direction away from the carriage 14 under the driving of the elastic pre-tightening force of the first reset component 32.

The latch hook plate 31 is rotatably connected to the rocker assembly 20, so that the latch hook body 33 abuts against the limiting frame 11 at the initial stage of door opening and moves along the direction departing from the door opening direction, the spacing between the latch hook body 33 and a fixed hook on a door machine of the car door is basically kept stable, and the problem of locking caused by the reduction of the spacing between the latch hook body 33 and the fixed hook is avoided. Similarly, the latch body 33 is rotatably abutted to the stopper 11 when the latch plate 31 is rotated to the closed position relative to the rocker assembly 20 to lock the latch hook and prevent the latch hook from being impacted.

As shown in fig. 1 and 5, in an embodiment, the rocker assembly 20 includes a rocker frame 21, a first rotating member 22 mounted on the rocker frame 21, and a second returning assembly 25, the rocker frame 21 is rotatably connected to the door vane base plate 12 through the first rotating member 22, and the second returning assembly 25 is elastically connected to the door vane base plate 12 and is located between the first returning assembly 32 and the first rotating member 22.

The first rotating member 22 is used to connect the rocker frame 21 and the door vane base plate 12 so that the rocker frame 21 can rotate relative to the door vane base plate 12. Alternatively, the first rotating member 22 is provided as a bearing mounted to the rocker frame 21 or a circular hole opened in the rocker frame 21, the door vane assembly 10 includes a mounting shaft 15 mounted to the door vane base plate 12, and the mounting shaft 15 is connected to the first rotating member 22. The first and second returning

assemblies

32 and 25 have the same structure, and the first and second returning

assemblies

32 and 25 are spaced apart and connected to the same carriage 14. Optionally, the telescoping direction of the first reduction assembly 32 and the telescoping direction of the second reduction assembly 25 are parallel to each other.

The latch plate 31 is rotatably connected to the rocker frame 21, and a rotating connection portion of the latch plate 31 and the rocker frame 21 is located in an area between the second reset assembly 25 and the first rotating member 22, so that the rotating direction of the latch plate 31 is matched with the rotating direction of the rocker frame 21 driven by the second reset assembly 25, and the rotating flexibility is high.

To further limit the range and angle of rotation of the rocker frame 21 relative to the door vane base plate 12, the rotational position is maintained consistent. In an embodiment, the rocker arm frame 21 includes a first limiting hole 211 in an arc-shaped long hole shape, and an arc-shaped center line of the first limiting hole 211 is coaxial with an axis of the first rotating member 22. The door knife rest assembly 10 comprises a first limiting shaft 13 mounted on the door knife bottom plate 12, and the first limiting shaft 13 is inserted into the first limiting hole 211. The first limit shaft 13 is used for limiting the rotation range and the rotation angle of the rocker frame 21, wherein the first limit shaft 13 is tangent to the hole wall of the first limit hole 211 to support and stabilize the rotation stability of the rocker frame 21. Further, first spacing axle 13 includes first axis body and the rotor of locating first axis body in the cover, and the rotor is tangent with the pore wall of first spacing hole 211 to improve pivoted flexibility. The rotating body is a rotating body such as a bearing or a sleeve.

Further, the rocker assembly 20 includes a pushing frame 24 mounted on the rocker frame 21, the pushing frame 24 is located between the first rotating member 22 and the second returning member 25, the pushing frame 24 abuts against the in-position baffle 60 and drives the rocker frame 21 to rotate when the car door is closed to a proper position, and the second returning member 25 is preloaded in a compressing manner.

The push bracket 24 is mounted to the rocker bracket 21 and protrudes from the surface of the rocker bracket 21 to form a bump structure. The position stop 60 abuts the push frame 24 to pivot the rocker frame 21 relative to the door vane base plate 12 to a locked position after the door is closed to a position. Accordingly, the latch hook body 33 moves closer to the stationary hook as the rocker frame 21 rotates, and is locked to the stationary hook when the rocker frame 21 rotates to the limit position, so that the rotation controllability is good, no impact occurs with the stationary hook, and the locking reliability is high. Alternatively, the thrust frame 24 is provided as a rigid cylinder or a movable rotator to fit the impact of the position fence 60 at various angles.

Further, the car door locking hook assembly 30 further includes an insertion pin plate 35 rotatably connected to the locking hook plate 31, the insertion pin plate 35 is provided with a sliding groove 351, the door frame assembly 10 includes a protruding third limiting shaft 16, and the third limiting shaft 16 is connected to the sliding groove 351 in an inserting manner. The needle insertion plate 35 is adapted to the door lock switch to cooperate with the latch hook plate 31 to trigger the electrical signal of the door lock switch in a linkage manner. The needle inserting plate 35 is provided with a sliding groove 351 which keeps straight-line and straight-line movement along with the third limiting shaft 16, the inserting direction is stable, the moving amount is controllable, and the inserting matching stability with the door lock switch is high.

The car door lock hook assembly 30 is rotatably connected to the rocker frame 21, is then connected to the door knife base plate 12 through the rocker frame 21, and is matched with the rocker frame 21 to realize the linear movement of the lock hook body 33 and the fixed hook in the door opening state. In an embodiment, the rocker assembly 20 further includes a second rotating member 23 mounted on the rocker frame 21, the rocker frame 21 further includes a second limiting hole 212 in an arc-shaped long hole shape, and an arc-shaped central line of the second limiting hole 212 coincides with an axis of the second rotating member 23 and is located between the first limiting hole 211 and the second returning assembly 25. The car door locking hook assembly 30 comprises a second limiting shaft 34 installed on the locking hook plate 31, the locking hook plate 31 is rotatably connected to the second rotating member 23, and the second limiting shaft 34 is connected to the second limiting hole 212 in an inserting mode.

Alternatively, the second rotating member 23 is provided as a bearing mounted to the rocker frame 21, and the door latch hook assembly 30 includes a connecting shaft mounted to the latch plate 31, the connecting shaft being connected to the second rotating member 23. Alternatively, the second rotating member 23 is provided as a connecting shaft attached to the rocker frame 21, and the door latch hook assembly 30 includes a bearing attached to the latch plate 31, and the connecting shaft is connected to the second rotating member 23. The axis of rotation of the second rotating member 23 is located between the second return assembly 25 and the second limit hole 212 to accommodate rotation of the rocker frame 21 and to limit the rotational position of the latch plate 31 relative to the rocker frame 21.

The rocker assembly 20 is limited to the rotation limit position of the door vane base plate 12 through the first limit shaft 13 during the rotation process, the rocker assembly 20 needs to keep the corresponding rotation position during the door opening or closing movement of the asynchronous door vane device, and the knife arm hinge assembly 40 is in the clamping position for clamping the door ball. In one embodiment, the asynchronous door vane device further comprises a return limit assembly 50 rotatably connected to the door vane base plate 12, and the return limit assembly 50 is slidably connected to the rocker assembly 20. When the knife arm hinge assembly 40 is in the clamping position, the return limit assembly 50 pushes against the rocker assembly 20 against the door knife base plate 12. The return limiting assembly 50 is used for locking the rocker assembly 20 so as to keep the tool arm hinge assembly 40 to maintain the posture of clamping a gate ball, no additional locking power is needed, and the structural stability is good.

The return limit assembly 50 includes a limit plate 51, a locking member 52 mounted on the limit plate 51, and an unlocking member 53, wherein the limit plate 51 includes a hinge 513, a first arm 511 and a second arm 512 intersecting the hinge 513, and the first arm 511 is inclined with respect to the second arm 512. The hinge portion 513 is rotatably connected to the vane base plate 12, the locking member 52 is mounted to the first arm 511 and slidably connected to the rocker assembly 20, and the unlocking member 53 is mounted to the second arm 512 and extends away from the rocker assembly 20.

The length of the first arm 511 is smaller than that of the second arm 512, and the second arm 512 extends from the hinge 513 and forms a substantially V-shaped structure with the first arm 511. A limiting groove 213 is formed in the bottom of the rocker frame 21, and the locking piece 52 slides to the bottom of the limiting groove 213 and is locked to the groove wall of the limiting groove 213 when the tool arm hinge assembly 40 is at the clamping position, so that the rocker frame 21 is prevented from reversing, and the position guidance is good. During the door closing process, the unlocking piece 53 impacts the unlocking plate 61 of the door machine to unlock the locking piece 52 from the rocker frame 21, and the rocker frame 21 and the in-place baffle 60 rotate after being unlocked to control the locking of the car door locking hook assembly 30.

As shown in fig. 1 and 7, the knife arm hinge assembly 40 includes a left knife arm 41, a right knife arm 42, an upper swing link 43 and a lower swing link 44, the upper swing link 43 and the lower swing link 44 are disposed in parallel, and two ends of the upper swing link 43 and the lower swing link 44 are respectively hinged with the left knife arm 41 and the right knife arm 42 to form a linkage structure similar to a quadrilateral. The upper ends of the left cutter arm 41 and the right cutter arm 42 both exceed the upper swing link 43, and the lower ends of the left cutter arm 41 and the right cutter arm 42 both exceed the lower swing link 44. The middle parts of the upper swing rod 43 and the lower swing rod 44 are hinged with the door knife rest assembly 10, and the transmission shaft 41 is installed on the upper swing rod 43 and is far away from the hinged connection axis of the upper swing rod 43 and the door knife bottom plate 12. The left knife arm 41 and the right knife arm 42 are mutually closed along with the rotation of the upper swing rod 43 so as to clamp a door lock ball of the landing door device to be in a clamping position; or, the left knife arm 41 and the right knife arm 42 are relatively opened along with the rotation of the upper swing link 43, so as to release the door lock ball clamping the landing door device to be in the opened position.

The working principle and the process of the asynchronous car door lock hook are briefly described as follows:

door closing in-place state of the door machine: after the door machine is closed in place, the in-place baffle 60 fixedly connected to the bottom plate of the door machine is abutted against the pushing frame 24 of the rocker assembly 20, and the in-place baffle 60 pushes the pushing frame 24 in the opposite direction to drive the rocker assembly 20 to rotate anticlockwise around the rotation center of the rocker assembly until reaching the limiting position. When the rocker assembly 20 rotates counterclockwise relative to the door frame assembly 10, the rocker frame 21 drives the door latch hook assembly 30 to rotate around the second rotating member 23. Meanwhile, the latch plate 31 can only slide in a linear manner similar to horizontal retraction under the elastic force action of the first restoring component 32 and the limiting action of the limiting frame 11 on the door vane bottom plate 12. Moreover, the latch plate 31 drives the knife arm hinge assembly 40 and the rocker assembly 20 to rotate counterclockwise through the driving slot 311, and the knife arm hinge assembly 40 changes from a knife retracting and ball clamping state to a knife expanding state; the blade arm hinge assembly 40 (left blade arm 41& right blade arm 42) is separated from the door lock locking ball, and the hook plate 31 falls down and is locked with the stationary hook. It should be noted that in the present application, the clockwise direction is determined from the plane of the blade arm hinge assembly 40 in the asynchronous door blade device as a front face.

The door opening and closing process state of the door machine is as follows:

when the door machine opens the door, the pushing frame 24 of the rocker assembly 20 and the in-place baffle 60 are separated, and the rocker assembly 20 rotates clockwise along with the increase of the door opening gap until reaching the limiting position. During this process, the rocker assembly 20 will drive the latch plate 31 to slide toward the door closing direction (the sliding principle is the same as above). The sliding distance of the latch plate 31 can be approximately the same as the door opening distance of the door machine, so that the position of the latch plate 31 in the rotation stroke of the rocker assembly 20 is kept relatively unchanged, the barb part 332 of the latch body 33 and the fixed hook keep a relatively stable gap, and the problem of locking is avoided. When the latch plate 31 slides in the door closing direction, the latch plate 31 drives the knife arm hinge assembly 40 to rotate clockwise, and the door knife starts to retract. When the knife arm hinge assembly 40 (the left knife arm 41 and the right knife arm 42) is contacted with the landing door lock ball and then the knife is continuously retracted, the knife arm hinge assembly 40 can rotate anticlockwise under the reverse acting force of the landing door lock ball; and the transmission shaft 41 connected with the upper swing link 43 drives the latch plate 31 to rotate counterclockwise, so as to open the car door latch hook assembly 30. After the rocker assembly 20 is rotated to the limit position, the locking member 52 of the return limit assembly 50 may limit the rocker assembly 20 from rotating counterclockwise. At the moment, the door knife finishes the door knife retracting of the cutter clamping ball, and drives the landing door to finish door opening and door closing together under the action of the door machine. After the door is closed to the proper position, the unlocking plate 61 on the bottom plate of the door machine opens the return limiting assembly 50, and the in-position baffle 60 on the bottom plate of the door machine impacts the pushing frame 24 of the rocker assembly 20 to execute the action of the door machine door closing in-position state.

The asynchronous knife device is only a preferred embodiment of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application. Other structures and principles are the same as those of the prior art, and are not described in detail herein.

Claims

1. The utility model provides an asynchronous door sword device for sedan-chair door machine, sedan-chair door machine is including locating baffle and sedan-chair door, its characterized in that, asynchronous door sword device includes:

2. The asynchronous door knife device according to claim 1, wherein the rocker assembly comprises a rocker frame, a first rotating member mounted on the rocker frame, and a second reset assembly, the rocker frame is rotatably connected with the door knife base plate through the first rotating member, and the second reset assembly is elastically connected with the door knife base plate and is located between the first reset assembly and the first rotating member.

3. The asynchronous door knife device according to claim 2, wherein the rocker arm frame comprises a first limiting hole in the shape of an arc long hole, the arc central line of the first limiting hole is coaxial with the axis of the first rotating member, the door knife frame assembly comprises a first limiting shaft mounted on the door knife base plate, and the first limiting shaft is inserted into the first limiting hole.

4. The asynchronous door knife device according to claim 3, wherein the rocker assembly further comprises a second rotating member mounted on the rocker frame, the rocker frame further comprises a second limiting hole in the shape of an arc-shaped long hole, an arc-shaped central line of the second limiting hole coincides with an axis of the second rotating member and is located between the first limiting hole and the second reset assembly, the car door lock hook assembly comprises a second limiting shaft mounted on the lock hook plate, the lock hook plate is rotatably connected to the second rotating member, and the second limiting shaft is connected to the second limiting hole in an inserting manner.

5. The asynchronous door knife device according to claim 2, wherein the rocker assembly comprises a pushing frame mounted on the rocker frame, the pushing frame is located between the first rotating member and the second resetting assembly, the pushing frame abuts against the in-place baffle and drives the rocker frame to rotate when the car door is closed in place, and the second resetting assembly is compressed and pre-tightened.

6. The asynchronous door knife device according to claim 2, characterized in that the direction of extension and retraction of the first return assembly and the direction of extension and retraction of the second return assembly are parallel to each other.

7. The asynchronous door knife device according to claim 1, wherein the driving slot is a long hole, the driving slot comprises two opposite and parallel side walls, and the transmission shaft is tangent to the side walls.

8. The asynchronous door knife device according to claim 7, characterized in that the latch hook body comprises a branch arm part and a barb part protruding from the branch arm part, and the extension direction of the branch arm part is perpendicular to the side wall of the driving groove.

9. The asynchronous door knife device according to claim 1, further comprising a return limit assembly rotatably connected to the door knife base plate, the return limit assembly being slidably connected to the rocker assembly; when the knife arm hinge assembly is located at the clamping position, the return limiting assembly pushes the rocker assembly to abut against the door knife bottom plate.

10. The asynchronous door knife device according to claim 9, wherein the return limit assembly comprises a limit plate, a locking member mounted to the limit plate, and an unlocking member, the limit plate comprises a hinge portion, a first arm and a second arm intersecting the hinge portion, the first arm is inclined relative to the second arm, the hinge portion is rotatably connected to the door knife base plate, the locking member is mounted to the first arm and slidably connected to the rocker assembly, and the unlocking member is mounted to the second arm and extends away from the rocker assembly.