CN106976792B - Asynchronous door knife - Google Patents
Asynchronous door knife Download PDFInfo
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- CN106976792B CN106976792B CN201710262665.3A CN201710262665A CN106976792B CN 106976792 B CN106976792 B CN 106976792B CN 201710262665 A CN201710262665 A CN 201710262665A CN 106976792 B CN106976792 B CN 106976792B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/02—Door or gate operation
Abstract
The invention discloses an asynchronous door knife, which comprises a door knife bottom plate, and further comprises a left upper swinging plate, a right upper swinging plate, a left lower swinging plate, a right lower swinging plate, an upper connecting rod assembly, a lower connecting rod assembly, a left blade, a right blade, a limiting connecting rod and a knife arm connecting rod.
Description
Technical Field
The invention relates to an elevator door vane, in particular to an asynchronous door vane.
Background
In the process of up-and-down running of the elevator, when the elevator car and the landing are leveled, the door knife of the elevator car side door machine drives the landing door linkage door ball at the landing door side to unlock and link together, so that the action of opening and closing the elevator door is realized.
Common door knives include both synchronous and asynchronous types. The synchronous door knife firstly realizes the action of clamping the landing door lock by the door knife, and then the car door and the landing door are linked together; the door knife often generates abnormal sound at the moment of opening the door, and is not easy to solve; the asynchronous door knife moves with the car door at the same time, and the car door generally needs to travel a certain stroke before the car door is linked with the landing door. When an asynchronous door knife used at present opens and closes a door, a door knife stroke connecting rod is needed to drive a cam to keep the door lock of the elevator car door knife clamping landing door device, and the mechanism is influenced by the length of the connecting rod and the door opening stroke, so that the system is easy to cause poor running stability, the cost is increased and the mechanism has the defect of being unsuitable for being used on a side-opening door.
Disclosure of Invention
The technical problem solved by the invention is to provide the asynchronous door knife which is safe and stable, and can always enable the door knife clamp to clamp the door ball by enabling the stress point to pass the dead point position of the mechanism in the door opening and closing process.
The technical scheme adopted by the invention for solving the technical problems is as follows: the asynchronous door knife comprises a door knife bottom plate, and further comprises a left upper swing plate, a right upper swing plate, a left lower swing plate, a right lower swing plate, an upper connecting rod assembly, a lower connecting rod assembly, a left blade, a right blade, a limit connecting rod and a knife arm connecting rod, wherein one end of the left upper swing plate is hinged with the front surface of the door knife bottom plate to form a fifth rotation center, the other end of the left upper swing plate is hinged with the upper part of the left blade, the middle part of the left lower swing plate is hinged with the front surface of the door knife bottom plate to form a sixth rotation center, one end of the left lower swing plate is hinged with the left blade, the other end of the left lower swing plate is hinged with one end of the knife arm connecting rod, and the other end of the knife arm connecting rod is hinged with one end of the right lower swing plate;
one end of the right upper swinging plate is hinged with the front surface of the bottom plate of the door knife to form a first rotation center, the other end of the right upper swinging plate is hinged with the upper connecting rod assembly to form a second rotation center, the right blade and the limiting connecting rod are respectively hinged with the upper connecting rod assembly, and two hinge points are respectively positioned at two sides of the central axis of the second rotation center, and the right upper swinging plate further comprises a knife lifting ball arranged on the upper swinging plate shaft;
one end of the right lower swing plate is hinged with the front surface of the bottom plate of the door knife to form a third rotation center, the middle hinging point of the right lower swing plate is hinged with the lower connecting rod assembly to form a fourth rotation center, the lower connecting rod assembly is simultaneously hinged with the right blade and the limiting connecting rod, the two hinging points are respectively positioned at two sides of the central axis of the fourth rotation center, the first rotation center and the third rotation center are positioned on the same vertical line, and the second rotation center and the fourth rotation center are positioned on the same vertical line;
a limiting pin shaft is arranged on the limiting link rod, a limiting waist hole is arranged on the upper link rod assembly, and the limiting pin shaft extends into the limiting waist hole;
the elevator car also comprises a car door lock hook, the middle part of the car door lock hook is hinged with the front surface of the car door knife bottom plate to form a seventh rotation center, one end of the car door lock hook extends out of the car door knife bottom plate, the other end of the car door lock hook is a driving end, the door knife also comprises a latch hook reset torsion spring, one end of the latch hook reset torsion spring is fixed on the door knife bottom plate, the other end of the latch hook reset torsion spring is fixed on the car door latch hook so that the car door latch hook is in a horizontal state;
the door knife comprises a door knife bottom plate, a right blade and an auxiliary tension spring, wherein the door knife bottom plate is provided with a door knife opening;
the right blade is provided with an arc unlocking piece; the swinging plate assembly formed by the right blade, the limiting link rod, the upper link rod assembly and the lower link rod assembly rotates around the first rotation center and the third rotation center; the swing plate assembly is contacted with a first limiting edge arranged on the upper link rod assembly through a limiting pin shaft positioned on the limiting link rod under the combined action of gravity and the pulling force of an auxiliary tension spring; the right blade is not contacted with the driving end; the car door lock hook is always in a horizontal state and cannot be opened. When the door is taken off from the inside of the car or the outside of the hall, the swing plate assembly is contacted with the second limiting edge of the limiting waist hole on the upper link rod assembly under the action of the locking ball of the hall door lock; the right blade is contacted with the driving end; the car door lock hook is forced to be opened; the method comprises the steps of carrying out a first treatment on the surface of the
When the cutter arm connecting rod is in a horizontal state, the first rotation center and the second rotation center are positioned on the same horizontal line, the third rotation center, the fourth rotation center and the hinge point of the cutter arm connecting rod and the right cutter arm are positioned on the same horizontal line, the fifth rotation center and the hinge point of the left upper swing plate and the left blade are positioned on the same horizontal line, and the sixth rotation center and the hinge point of the left lower swing plate and the left blade are positioned on the same horizontal line.
Further is: the cutter folding and unfolding device is characterized by further comprising a cutter folding and unfolding pressure spring, wherein the cutter folding and unfolding pressure spring is fixed between the left blade and the door cutter bottom plate.
Further is: the unlocking plate is positioned below the car door lock hook, the middle of the unlocking plate is hinged with the car door knife bottom plate to form an eighth rotation center, a groove is formed in the car door lock hook, one end of the unlocking plate extends into the groove, and an unlocking rope is fixed at the other end of the unlocking plate.
Further is: the unlocking plate reset torsion spring is characterized by further comprising an unlocking plate reset torsion spring, one end of the unlocking plate reset torsion spring is fixed on the unlocking plate, and the other end of the unlocking plate reset torsion spring is fixed on the door knife bottom plate.
Further is: the side edge of the bottom plate of the door knife is provided with a guide seat which plays a limiting role on an unlocking rope, and the unlocking rope penetrates through the guide seat.
Further is: and a ball falling clamping groove for limiting the lifting knife ball is formed in the gate knife bottom plate.
Further is: the door knife bottom plate is provided with a lock hook limiting groove, and the car door lock hook is provided with a lock hook limiting ball which stretches into the lock hook limiting groove.
Further is: and the bottom end of the bottom plate of the door knife is provided with a limiting rubber block for limiting the right lower swing plate.
The beneficial effects of the invention are as follows: the invention designs the limit pin shaft and the limit waist-shaped hole at the positions of the components, so that self-locking can be realized in the door opening and closing process, the door knife can always lock the door ball no matter how large the reverse thrust of the landing door is, a stable output force is provided for the door ball, and meanwhile, the unlocking rope is arranged, so that under extreme conditions such as power failure, the door knife can be manually unlocked by pulling the unlocking rope, and the safety performance of the door knife is improved.
Drawings
Fig. 1 is a front view of a door closing state.
Fig. 2 is a rear view of the door in a closed state.
Fig. 3 is a sectional view showing a closed state.
Fig. 4 is a front view showing a door opening and closing process state.
Fig. 5 is a sectional view showing a state of the door opening and closing process.
Fig. 6 is a front view in a door-pulled state.
Fig. 7 is a front view of the door knife when the motor is in malfunction.
FIG. 8 is a schematic view of an upper link assembly.
Fig. 9 is a rear view of the wobble plate assembly.
Marked in the figure as: the door knife bottom plate 1, the left upper swing plate 2, the right upper swing plate 3, the left lower swing plate 4, the right lower swing plate 5, the upper connecting rod assembly 6, the lower connecting rod assembly 7, the left blade 8, the right blade 9, the limit connecting rod 10, the knife arm connecting rod 11, the knife lifting ball 12, the limit pin shaft 13, the limit waist hole 14, the first limit edge 141, the second limit edge 142, the car door lock hook 15, the groove 152, the lock hook reset torsion spring 16, the retracting pressure spring 17, the unlocking plate 18, the unlocking rope 19, the unlocking plate reset torsion spring 20, the guide seat 21, the falling ball clamping groove 22, the lock hook limit groove 23, the lock hook limit ball 24, the auxiliary tension spring 25, the limit rubber block 26, the first rotation center 27, the second rotation center 28, the third rotation center 29, the fourth rotation center 30, the fifth rotation center 31, the sixth rotation center 32, the seventh rotation center 33, the eighth rotation center 34, the knife lifting bracket 35, the door ball 36 and the swing plate assembly 37.
Detailed Description
The invention is further described below with reference to the drawings and the detailed description.
The asynchronous door knife comprises a door knife bottom plate 1, and further comprises a left upper swinging plate 2, a right upper swinging plate 3, a left lower swinging plate 4, a right lower swinging plate 5, an upper connecting rod assembly 6, a lower connecting rod assembly 7, a left blade 8, a right blade 9, a limit connecting rod 10 and a knife arm connecting rod 11, wherein one end of the left upper swinging plate 2 is hinged with the front surface of the door knife bottom plate 1 to form a fifth rotation center 31, the other end of the left upper swinging plate 2 is hinged with the upper part of the left blade 8, the middle part of the left lower swinging plate 4 is hinged with the front surface of the door knife bottom plate 1 to form a sixth rotation center 32, one end of the left lower swinging plate 4 is hinged with the left blade 8, the other end of the left lower swinging plate 4 is hinged with one end of the knife arm connecting rod 11, and the other end of the knife arm connecting rod 11 is hinged with one end of the right lower swinging plate 5;
one end of the right upper swinging plate 3 is hinged with the front surface of the door knife bottom plate 1 to form a first rotation center 27, the other end of the right upper swinging plate 3 is hinged with the upper connecting rod assembly 6 to form a second rotation center 28, the right knife blade 9 and the limiting connecting rod 10 are respectively hinged with the upper connecting rod assembly 6, two hinge points are respectively positioned on two sides of the central axis of the second rotation center 28, the door knife bottom plate further comprises a knife lifting ball 12 arranged on an upper swinging plate shaft, and on the basis, a ball falling clamping groove 22 for limiting the knife lifting ball 12 is arranged on the door knife bottom plate 1;
one end of the right lower swing plate 5 is hinged with the front surface of the bottom plate 1 of the door knife to form a third rotation center 29, the middle hinging point of the right lower swing plate 5 is hinged with the lower connecting rod assembly 7 to form a fourth rotation center 30, the lower connecting rod assembly 7 is simultaneously hinged with the right blade 9 and the limit connecting rod 10, the two hinging points are respectively positioned at two sides of the central axis of the fourth rotation center 30, the first rotation center 27 and the third rotation center 29 are positioned on the same vertical line, and the second rotation center 28 and the fourth rotation center 30 are positioned on the same vertical line;
a limiting pin shaft 13 is arranged on the limiting link rod 10, a limiting waist hole 14 is arranged on the upper link rod assembly 6, and the limiting pin shaft 13 extends into the limiting waist hole 14;
the elevator car door lock comprises a car door lock body 1, a car door lock hook 15, a car door lock reset torsion spring 16 and a car door lock hook 15, wherein the front face of the car door lock body 1 is hinged with the middle part of the car door lock hook 15 to form a seventh rotation center 33, one end of the car door lock hook 15 extends out of the car door lock body 1, the other end of the car door lock hook 15 is a driving end, one end of the car door lock hook is fixed on the car door lock body 1, and the other end of the car door lock hook reset torsion spring is fixed on the car door lock hook 15 to enable the car door lock hook 15 to be in a horizontal state;
the door knife further comprises an auxiliary tension spring 25, one end of the auxiliary tension spring 25 is fixed on the door knife bottom plate 1, and the other end of the auxiliary tension spring 25 is fixed on the right blade 9
An arc unlocking piece is arranged on the right blade 9, and a swinging plate assembly 37 formed by the right blade 9, the limiting link rod 10, the upper link rod assembly 6 and the lower link rod assembly 7 can rotate around the first rotation center 27 and the third rotation center 27; the swing plate assembly 37 is contacted with a first limit edge 141 arranged on the upper link assembly 6 through a limit pin shaft 13 positioned on the limit link 10 under the combined action of gravity and the tension of the auxiliary tension spring 25; the right blade 9 is not contacted with the driving end; when the door lock hook 15 of the car door is always in a horizontal state and can not be opened, and the door is pulled out from the car interior/outside the hall, the swinging plate assembly 37 is contacted with the second limiting edge 14-2 of the limiting waist hole on the upper link assembly 6 by the limiting pin shaft 13 on the limiting link 10 under the action of the locking ball of the hall door lock; the right blade 9 is contacted with the driving end; the car door lock hook 15 is forced to be opened; when the arm link 11 is in the horizontal state, the first center of rotation 27 and the second center of rotation 28 are on the same horizontal line, the third center of rotation 29, the fourth center of rotation 30, and the hinge point of the arm link 11 with the right arm are on the same horizontal line, the fifth center of rotation 31 is on the same horizontal line as the hinge point of the upper left swing plate 2 and the left blade 8, and the sixth center of rotation 32 is on the same horizontal line as the hinge point of the lower left swing plate 4 and the left blade 8.
And a lifting knife bracket 35 which is obliquely arranged and moves relative to the lifting knife ball 12 is fixed on the bottom plate of the door machine.
The working principle of the structure is as follows: when the door is closed, the door knife state is shown in fig. 1 to 3, at this moment, the lifting knife ball 12 is positioned at the upper plane end of the lifting knife bracket 35, the limiting pin shaft 13 is tangential to the first limiting edge 141 of the limiting waist hole 14, when the elevator car is in a flat layer, the door is opened, as shown in fig. 4 and 5, the elevator door moves firstly, so that the lifting knife ball 12 moves downwards along the slope of the lifting knife bracket 35, the movement of the lifting knife ball 12 drives the swinging plate assembly to rotate anticlockwise around the first rotation center 27, the third rotation center 29, simultaneously, the upper left swinging plate 2 and the lower left swinging plate 4 simultaneously rotate clockwise around the fifth rotation center 31 and the sixth rotation center 32 due to the action of the knife arm connecting rod 11, the door ball 36 is positioned between the left knife 8 and the right knife 9 due to the fact that the door ball 36 gives a right horizontal force to the right knife 9 due to the diameter of the door ball 36, so that the right knife 9 drives the upper connecting rod assembly 6 to rotate around the second rotation center 28 and the fourth rotation center 30, namely, the angle A is larger than the angle B, namely, the right blade 9 moves rightwards, so that the limiting pin shaft 13 is tangent to the second limiting edge of the limiting waist hole 14, the right blade 9 contacts with the driving end of the car door lock hook 15 in the rightwards movement process, and drives the driving end to rotate anticlockwise around the seventh rotation center 33, so that the locking end of the car door lock hook 15 is tilted upwards to realize unlocking, and in the state of the door clamping ball 36, the first rotation center 27 and the second rotation center 28 are positioned on the same horizontal line, the hinge points of the third rotation center 29, the fourth rotation center 30 and the cutter arm connecting rod 11 and the right cutter arm are positioned on the same horizontal line, the hinge points of the fifth rotation center 31 and the left upper swinging plate 2 and the left cutter arm 8 are positioned on the same horizontal line, the hinge points of the sixth rotation center 32 and the left lower swinging plate 4 and the left cutter arm 8 are positioned on the same horizontal line, so that no matter how much outward horizontal force is given, because the direction of force passes through each rotation center, the left blade 8 and the right blade 9 cannot rotate around each rotation center, meanwhile, because the limiting pin shaft 13 is tangent to the second limiting edge of the limiting waist hole 14, the right blade 9 cannot move rightwards, so that the door knife is self-locked in the door opening and closing process, the left blade 8 and the right blade 9 clamp the clamping size of the door ball 36, the setting of an external locking mechanism is reduced, when the door is closed, the lifting knife ball 12 is lifted by the lifting knife bracket 35, the thrust of the door ball 36 to the left blade 9 and the right blade 9 is eliminated, the car door lock hook 15 is reset under the action of the locking hook reset torsion spring 16, and the door knife is restored to the state of fig. 1-3.
As shown in fig. 6, when the car is stopped in the hoistway (not in a flat floor) due to a fault, personnel in the car or personnel outside the hoistway can take off the door to enable the left blade 8 or the right blade 9 to obtain a horizontal force, and enable the right blade 9 to move rightward to enable the driving end of the car door lock hook 15 to move downwards, so that the car door is unlocked and rescue is achieved.
As shown in fig. 7, when the motor malfunction makes the car move, thereby causing the lifting tool ball 12 to leave the upper plane of the lifting tool support 35, the lifting tool ball 12 falls, at this time, the limiting pin shaft 13 is tangent to the first limiting edge 141 of the limiting waist hole 14, and a certain gap is left between the right blade 9 and the driving end of the car door lock hook 15, and due to the motor malfunction, no gate ball 36 is arranged between the left blade 8 and the right blade 9, so that the outward pressure is not applied between the left blade 8 and the right blade 9, and the car door lock hook 15 is not opened, thus having a certain safety function.
On the basis, the cutter retracting and pressing device further comprises a cutter retracting and pressing spring 17, wherein the cutter retracting and pressing spring 17 is fixed between the left cutter blade 8 and the door cutter bottom plate 1, and after the cutter retracting and pressing spring 17 is arranged to enable the cutter lifting ball 12 to leave the cutter lifting support 35, the left cutter blade 8 and the right cutter blade 9 are in a cutter retracting state rapidly, so that the condition that the cutter lifting ball 12 cannot fall back due to insufficient gravity and the like is prevented.
On the basis, the car door lock unlocking device further comprises an unlocking plate 18, the unlocking plate 18 is located below the car door lock hook 15, the middle of the unlocking plate 18 is hinged with the car door lock hook 1 to form an eighth rotation center 34, a groove 152 is formed in the car door lock hook 15, one end of the unlocking plate 18 extends into the groove 152, an unlocking rope 19 is fixed to the other end of the unlocking plate 18, when manual unlocking is needed, the unlocking rope 19 is pulled manually, the car door lock hook 15 is pushed by the unlocking plate 18 to rotate clockwise around the eighth rotation center 34, the car door lock hook 15 rotates anticlockwise around the eighth rotation center 34, and the unlocking end of the car door lock hook 15 is tilted upwards to achieve manual unlocking.
On the basis, the car door lock device further comprises an unlocking plate reset torsion spring 20, one end of the unlocking plate reset torsion spring 20 is fixed on the unlocking plate 18, the other end of the unlocking plate reset torsion spring 20 is fixed on the door knife bottom plate 1, the unlocking plate 18 can be reset through the arrangement of the unlocking plate 18 reset spring, external force acting on the car door lock hook 15 disappears, and the car door lock hook 15 is restored to a locked state.
On the basis, the side edge of the door knife bottom plate 1 is provided with the guide seat 21 which plays a limiting role on the unlocking rope 19, the unlocking rope 19 passes through the guide seat 21, and the arrangement of the guide seat 21 ensures that the force is required to be vertically downward when the unlocking rope 19 is pulled by a person, and the arrangement can reduce the force dispersion and plays a role in saving the force.
On the basis of the above, the door knife bottom plate 1 is provided with the lock hook limiting groove 23, the car door lock hook 15 is provided with the lock hook limiting ball 24 extending into the lock hook limiting groove 23, and the arrangement of the lock hook limiting ball 24 can limit the movement range of the car door lock hook 15.
On the basis, the bottom end of the bottom plate 1 of the door knife is provided with the limit rubber blocks 26 for limiting the right lower swing plate 5, and due to the arrangement of the limit rubber blocks 26, when the door knife is in a self-locking state, the door knife cannot move to two sides and cannot move downwards, so that the stability of the left blade 8 and the right blade 9 is ensured.
While the foregoing is directed to embodiments of the present invention, other and further details of the invention may be had by the present invention, it should be understood that the foregoing description is merely illustrative of the present invention and that no limitations are intended to the scope of the invention, except insofar as modifications, equivalents, improvements or modifications are within the spirit and principles of the invention.
Claims (6)
1. Asynchronous door vane, comprising a door vane base plate (1), characterized in that: the novel knife arm comprises a knife blade bottom plate (5), a left upper swinging plate (2), a right upper swinging plate (3), a left lower swinging plate (4), a right lower swinging plate (5), an upper link rod assembly (6), a lower link rod assembly (7), a left blade (8), a right blade (9), a limit link rod (10) and a knife arm link rod (11), wherein one end of the left upper swinging plate (2) is hinged with the front surface of the knife blade bottom plate (1) to form a fifth rotation center (31), the other end of the left upper swinging plate (2) is hinged with the upper part of the left blade (8), the middle part of the left lower swinging plate (4) is hinged with the front surface of the knife blade bottom plate (1) to form a sixth rotation center (32), one end of the left lower swinging plate (4) is hinged with the left blade (8), and the other end of the left lower swinging plate (4) is hinged with one end of the knife arm link rod (11), and the other end of the knife arm link rod (11) is hinged with one end of the right lower swinging plate (5).
One end of the right upper swinging plate (3) is hinged with the front surface of the knife bottom plate (1) to form a first rotation center (27), the other end of the right upper swinging plate (3) is hinged with the upper link assembly (6) to form a second rotation center (28), the right blade (9) and the limit link (10) are respectively hinged with the upper link assembly (6), and the two hinge points are respectively positioned at two sides of the central axis of the second rotation center (28), and the knife lifting device further comprises a knife lifting ball (12) arranged on the upper swinging plate shaft;
one end of the right lower swing plate (5) is hinged with the front surface of the door knife bottom plate (1) to form a third rotation center (29), a middle hinging point of the right lower swing plate (5) is hinged with the lower link rod assembly (7) to form a fourth rotation center (30), the lower link rod assembly (7) is simultaneously hinged with the right knife blade (9) and the limit link rod (10) and the two hinging points are respectively positioned at two sides of the central axis of the fourth rotation center (30), the first rotation center (27) and the third rotation center (29) are positioned on the same vertical line, and the second rotation center (28) and the fourth rotation center (30) are positioned on the same vertical line;
a limiting pin shaft (13) is arranged on the limiting link rod (10), a limiting waist hole (14) is arranged on the upper link rod assembly (6), and the limiting pin shaft (13) stretches into the limiting waist hole (14);
the elevator car door lock comprises a car door lock body (15), wherein the middle part of the car door lock body is hinged with the front surface of a car door knife bottom plate (1) to form a seventh rotation center (33), one end of the car door lock body (15) extends out of the car door knife bottom plate (1), the other end of the car door lock body (15) is a driving end, the elevator car door lock also comprises a lock hook reset torsion spring (16), one end of the lock hook reset torsion spring is fixed on the car door knife bottom plate (1), and the other end of the lock hook reset torsion spring is fixed on the car door lock body (15) to enable the car door lock body (15) to be in a horizontal state;
the door knife also comprises an auxiliary tension spring (25), one end of the auxiliary tension spring (25) is fixed on the door knife bottom plate (1), and the other end of the auxiliary tension spring (25) is fixed on the right blade (9);
an arc unlocking piece is arranged on the right blade (9); the swinging plate assembly (37) formed by the right blade (9), the limit link rod (10), the upper link rod assembly (6) and the lower link rod assembly (7) can rotate around the first rotation center (27) and the third rotation center (29); the swing plate assembly (37) is contacted with a first limit edge (141) of a limit waist hole arranged on the upper link rod assembly (6) through a limit pin shaft (13) positioned on the limit link rod (10) under the combined action of gravity and an auxiliary tension spring (25); the right blade (9) is not contacted with the driving end; the car door lock hook (15) is always in a horizontal state and cannot be opened; when the door is taken off from the inside of the car or the outside of the car, the swinging plate assembly (37) is contacted with the second limiting edge (142) of the limiting waist hole on the upper link rod assembly (6) by the limiting pin shaft (13) on the limiting link rod (10) under the action of the locking ball of the door lock of the car; the right blade (9) is contacted with the driving end; the car door lock hook (15) is forced to be opened;
when the cutter arm connecting rod (11) is in a horizontal state, the first rotation center (27) and the second rotation center (28) are positioned on the same horizontal line, the third rotation center (29), the fourth rotation center (30) and the hinge points of the cutter arm connecting rod (11) and the right cutter arm are positioned on the same horizontal line, the fifth rotation center (31) and the hinge points of the left upper swinging plate (2) and the left blade (8) are positioned on the same horizontal line, and the sixth rotation center (32) and the hinge points of the left lower swinging plate (4) and the left blade (8) are positioned on the same horizontal line;
the cutter folding and unfolding device further comprises a cutter folding and unfolding pressure spring (17), wherein the cutter folding and unfolding pressure spring (17) is fixed between the left blade (8) and the cutter door bottom plate (1);
the car door unlocking device is characterized by further comprising an unlocking plate (18), wherein the unlocking plate (18) is located below the car door locking hook (15), the middle of the unlocking plate (18) is hinged to the car door locking bottom plate (1) to form an eighth rotation center (34), a groove (152) is formed in the car door locking hook (15), one end of the unlocking plate (18) extends into the groove (152), and an unlocking rope (19) is fixed to the other end of the unlocking plate (18).
2. An asynchronous door knife as claimed in claim 1, wherein: the unlocking device further comprises an unlocking plate reset torsion spring (20), one end of the unlocking plate reset torsion spring (20) is fixed on the unlocking plate (18), and the other end of the unlocking plate reset torsion spring (20) is fixed on the door knife bottom plate (1).
3. An asynchronous door knife as claimed in claim 2, wherein: the side of the door knife bottom plate (1) is provided with a guide seat (21) which plays a limiting role on the unlocking rope (19), and the unlocking rope (19) passes through the guide seat (21).
4. An asynchronous door knife as claimed in claim 1, wherein: and a ball falling clamping groove (22) for limiting the cutter lifting ball (12) is formed in the cutter bottom plate (1).
5. An asynchronous door knife as claimed in claim 1, wherein: the door knife bottom plate (1) is provided with a lock hook limiting groove (23), and the car door lock hook (15) is provided with a lock hook limiting ball (24) extending into the lock hook limiting groove (23).
6. An asynchronous door knife as claimed in claim 1, wherein: the bottom end of the door knife bottom plate (1) is provided with a limiting rubber block (26) for limiting the right lower swing plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710262665.3A CN106976792B (en) | 2017-04-20 | 2017-04-20 | Asynchronous door knife |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710262665.3A CN106976792B (en) | 2017-04-20 | 2017-04-20 | Asynchronous door knife |
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| CN106976792A CN106976792A (en) | 2017-07-25 |
| CN106976792B true CN106976792B (en) | 2023-05-16 |
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| CN201710262665.3A Active CN106976792B (en) | 2017-04-20 | 2017-04-20 | Asynchronous door knife |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110370868A (en) * | 2019-07-26 | 2019-10-25 | 唐山德伯特机械有限公司 | Self-positioning stripping type trailer |
| CN111470397B (en) * | 2020-05-28 | 2023-12-22 | 上海贝思特门机有限公司 | Synchronous door knife of integrated sedan-chair lock of interior clamp formula |
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| WO2016119484A1 (en) * | 2015-01-30 | 2016-08-04 | 南通通洋机电制造有限公司 | Elevator synchronous door vane device with a retaining assembly |
| CN206842803U (en) * | 2017-04-20 | 2018-01-05 | 苏州和阳智能制造股份有限公司 | A kind of asynchronous door knife |
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| JP2000053348A (en) * | 1998-08-10 | 2000-02-22 | Toshiba Corp | Door interlock mechanism of elevator |
| CN104760871A (en) * | 2014-01-07 | 2015-07-08 | 日立电梯（中国）有限公司 | Outer manual unlocking device of elevator car locking hall |
| WO2016119484A1 (en) * | 2015-01-30 | 2016-08-04 | 南通通洋机电制造有限公司 | Elevator synchronous door vane device with a retaining assembly |
| CN105035922A (en) * | 2015-09-06 | 2015-11-11 | 上海贝思特门机有限公司 | Car door lock door vane device for elevator |
| CN205257744U (en) * | 2015-11-13 | 2016-05-25 | 华升富士达电梯有限公司 | Synchronous door sword of sedan -chair lock and elevator |
| CN206842803U (en) * | 2017-04-20 | 2018-01-05 | 苏州和阳智能制造股份有限公司 | A kind of asynchronous door knife |
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| CN106976792A (en) | 2017-07-25 |
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