Elevator sliding rod car door locking device and control method thereof

Abstract

The present invention provides an elevator slide bar car door lock device and a control method thereof. The elevator slide bar car door lock device comprises a door knife arm assembly, a sliding assembly, a lock hook assembly and a starting assembly. When the car moves to the floor station, the door knife arm assembly extends between the floor door balls, the synchronous belt drives the starting rod to move, the starting rod action causes the linkage plate to swing, the slider compresses the slider compression spring, and the lock hook is lifted upward to the limit position, then the linkage plate moves with the slider and the lock hook, and the first door knife arm is controlled to move through the slider waist groove, so that the first door knife arm and the second door knife arm are opened outward to support the floor door ball, so as to realize the floor door unlocking. When the elevator is in the unlocking area, the car door can be pried open from inside and outside the car; when the elevator is in the non-unlocking area, people in the car cannot pry open the car door, and even if the motor is powered on, the car door cannot be opened. The structure is simple and the safety performance is high.

Description

Technical Field

[0001] The invention belongs to the technical field of elevator equipment, and in particular relates to an elevator sliding rod car door locking device and a control method thereof. Background Art

[0002] With the advancement of science and technology and the improvement of people's living standards, more and more high-rise buildings have emerged, and elevators are used more and more frequently. Therefore, the safe operation of elevators is of vital importance, especially the safety of door systems.

[0003] The national standard stipulates that when the elevator is in the unlocking area, the car door can be opened with a force of no more than 300N inside the car, or the floor door and car door can be opened with a force of no more than 300N after unlocking with a triangular key outside the car; when the elevator is in the non-unlocking area, the opening range of the car door shall not exceed 50mm. That is, the elevator car door lock needs to have an anti-pick function to restrict people in the car from opening the car door when not at the floor station, and it also needs to ensure that the elevator car door cannot be opened when the motor is accidentally powered on at the non-floor station.

[0004] In the existing car door lock devices, most of the car door lock structures need to cut off the power supply of the motor before manually prying the door from the car in the unlocking area. At the same time, when rescuing in the non-unlocking area, the motor needs to be powered on to manually unlock the door from outside the car, which is extremely inconvenient. In addition, the car door lock structure is complex and difficult to maintain, so it is necessary to improve the existing technology. Summary of the invention

[0005] The present invention provides an elevator floor door locking device and a control method thereof, which are used to solve at least one of the above-mentioned problems.

[0006] In order to achieve the above-mentioned purpose, the present invention realizes an elevator slide bar car door lock device, comprising a door knife arm assembly, a sliding assembly, a lock hook assembly, a starting assembly and a linkage plate, wherein the starting assembly is connected to the linkage plate to drive the linkage plate to move;

[0007] The door knife arm assembly comprises a first door knife arm, a second door knife arm, a connecting block, a connecting block pin shaft and a linkage pin shaft, wherein the connecting block pin shaft is fixed to the door machine hanging plate, the connecting block is rotatably mounted on the connecting block pin shaft, one end of the connecting block is connected to the first door knife arm, and the other end is connected to the second door knife arm, the linkage pin shaft is movably arranged in the slider, and the first door knife arm is mounted on the linkage pin shaft;

[0008] The sliding assembly includes a slider, a first sliding rod and a slider compression spring, the first sliding rod passes through the slider and the slider compression spring in sequence, two ends of the first sliding rod are fixed to the linkage plate, the slider is configured to be able to slide left and right on the first sliding rod, the linkage plate is configured to be driven by the starting assembly to move in a preset first direction, the linkage plate drives the slider to move, the slider touches the lock hook assembly to unlock the lock hook assembly, and the slider compresses the slider compression spring when moving in the first direction, and the linkage plate is also configured to move in a preset second direction, the slider compression spring releases pressure to push the slider to move in the first direction, the slider is disengaged from the lock hook assembly, and the lock hook assembly is locked.

[0009] Further, the elevator slide bar car door lock device also includes a linkage unlocking base plate and a crank connecting block, one end of the crank connecting block is rotatably mounted on the linkage unlocking base plate, and the other end is rotatably mounted on the linkage plate;

[0010] The crank connecting block includes a first crank connecting block and a second crank connecting block, and the first crank connecting block and the second crank connecting block are arranged in parallel.

[0011] Further, the starting assembly includes a starting rod, an arc-shaped slide groove is provided on the linkage unlocking bottom plate, one end of the starting rod is mounted on the linkage plate, and the other end passes through the arc-shaped slide groove of the linkage unlocking bottom plate and is connected to the synchronous belt;

[0012] A start block, which is rotatably mounted on the back of the linkage unlocking bottom plate, and is configured to be able to clamp the start rod to keep the start rod stationary;

[0013] A billiard ball is arranged on the starting block, and the billiard ball is configured to cooperate with a fixed striking bow at the center of the door machine. When the billiard ball contacts the fixed striking bow, the billiard ball can drive the starting block to rotate, and the starting block is separated from the starting rod.

[0014] Furthermore, the locking hook assembly includes a locking hook and a roller, wherein the roller is disposed on the locking hook, and the roller is configured to be able to roll along the side of the slider to drive the locking hook to rotate up and down.

[0015] Furthermore, the connecting block includes a first connecting block and a second connecting block, the first connecting block and the second connecting block are arranged in parallel and form a parallelogram mechanism with the first door knife arm and the second door knife arm, the first door knife arm and the second door knife arm are connected by the first connecting block and the second connecting block, which increases the stability of the door knife arm assembly during operation, and can also be more firmly installed on the door knife base plate, and is not prone to shaking, so as not to affect the normal operation of the elevator car door lock.

[0016] Furthermore, the sliding assembly also includes a second sliding rod, the second sliding rod passes through the sliding block, and one end of the second sliding rod is fixed on the linkage plate.

[0017] Furthermore, the sliding block also includes a waist-shaped groove arranged vertically, and the linkage pin shaft can move up and down along the waist-shaped groove to realize the opening, closing and retraction of the first door knife arm and the second door knife arm.

[0018] Furthermore, the elevator car door lock also includes a door knife base plate, the door knife base plate is installed on the door machine hanging plate, and the connecting block pin is installed on the door knife base plate.

[0019] Furthermore, a limit shaft is provided above the start block, and the limit shaft is located on the linkage unlocking bottom plate. The limit shaft is configured to limit the rotation range of the start block to prevent the start block from rotating too much and being difficult to reset.

[0020] Furthermore, the starting assembly also includes a starting block tension spring, the starting block is provided with a tension spring fixing shaft, both ends of the starting block tension spring are respectively connected to the tension spring fixing shaft and the limiting shaft, and the starting block rotates clockwise under the action of the starting block tension spring until it jams the starting rod, so that the starting rod and the starting block remain fixed and do not rotate.

[0021] Furthermore, the starting block includes an arc groove, and the arc groove is configured to be able to clamp the starting rod so that the starting rod does not move in the arc-shaped sliding groove.

[0022] A control method for an elevator sliding rod car door lock device, comprising:

[0023] When the car is in the unlocking area, the starting assembly drives the linkage plate to move in the first direction, and the slider assembly moves in the first direction along with the linkage plate, so that the linkage pin moves toward the lower end of the slider, and at the same time, under the transmission of the connecting block, the first door knife arm and the second door knife arm are opened to both sides to contact the floor door ball respectively, and the slider remains stationary, and the linkage plate continues to move in the first direction, and the slider compresses the slider compression spring along the first slide rod, and the slider touches the lock hook assembly to make the lock hook assembly unlock, so as to realize normal door opening;

[0024] The starting assembly drives the linkage plate to move in the second direction, and the slider assembly moves in the second direction along with the linkage plate, so that the linkage pin axis moves toward the upper end of the slider. Under the transmission of the connecting block, the first door knife arm and the second door knife arm close inward, and at the same time, the slider compression spring releases the pressure to push the slider to move in the first direction, and the slider disengages from the lock hook assembly to make the lock hook assembly perform a locking action to achieve normal door closing.

[0025] further:

[0026] The elevator car door lock also includes a door knife base plate, the door knife base plate is mounted on the door machine hanging plate, the connecting block pin is mounted on the door knife base plate, the starting component does not work, when the door is pried from the car, the door hanging plate drives the door knife base plate to move in the first direction until the first door knife arm touches the auxiliary door ball of the floor door, and a gap is left between the first door knife arm and the second door knife arm. The first door knife arm and the second door knife arm are closed inwardly under the action of the door hanging plate, driving the slider to slide in the second direction, compressing the slider compression spring, and the slider touches the lock hook assembly to make the lock hook assembly unlock, thereby unlocking the car door; the door hanging plate continues to move in the first direction, the first door knife arm and the second door knife arm prop up the floor door ball, and the floor door is opened;

[0027] When the starting assembly does not work and the door is pried open from outside the car, a triangular key is used to unlock the floor door, and the main door ball of the floor door touches the second door knife arm, driving the first door knife arm and the second door knife arm to move inward, and under the transmission of the connecting block, the slider is driven to slide in the second direction, compressing the slider compression spring, and the slider touches the lock hook assembly to unlock the lock hook assembly, thereby unlocking the car door.

[0028] further:

[0029] When the car is in the non-unlocking area, the starting assembly drives the linkage plate to move in the first direction, and the slider assembly moves in the first direction along with the linkage plate, so that the linkage pin axis moves to the lower end of the slider, and under the transmission of the connecting block, the first door knife arm and the second door knife arm are opened and cannot touch the floor door ball, and the slider continues to move in the first direction, the slider compression spring is not compressed, the lock hook assembly does not contact the slider, the lock hook assembly does not move, and the car door does not open;

[0030] The starter rod and the linkage plate do not move, the door is pried from the car, the door hanging plate drives the door knife bottom plate to move in the first direction, the first door knife arm and the second door knife arm are opened and cannot touch the floor door ball, the slider continues to move in the first direction, the slider compression spring is not compressed, the lock hook assembly does not contact the slider, the lock hook assembly does not move, and the car door does not open;

[0031] When prying the door from outside the car, use a triangular key to unlock the floor door, manually apply force to close the first door knife arm and the second door knife arm inward, drive the slider to slide in the second direction, compress the slider compression spring, and the slider touches the lock hook assembly to unlock the lock hook assembly, thereby unlocking the car door.

[0032] The present invention has at least the following beneficial effects: the present invention includes a door knife arm assembly, a swing assembly, a sliding assembly, a lock hook assembly and a starting assembly. When the car moves to the floor station, the door knife arm assembly extends between the floor door balls, the synchronous belt drives the starting rod to move, the starting rod moves to swing the linkage plate, the slider compresses the spring and the lock hook is lifted upward to the limit position, then the linkage plate moves with the slider and the lock hook, and the first door knife arm is controlled to move through the slider waist groove, so that the first door knife arm and the second door knife arm are opened outward to support the floor door ball, so as to unlock the floor door. When the elevator is in the unlocking area, the car door can be pried open from inside and outside the car; when the elevator is in the non-unlocking area, people in the car cannot pry open the car door, and even if the motor is powered on, the car door cannot be opened. The structure is simple and the safety performance is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] Figure 1 It is a structural schematic diagram of an elevator sliding rod car door locking device according to an embodiment of the present invention (front view).

[0035] Figure 2 It is a structural schematic diagram (rear view) of an elevator sliding rod car door locking device according to an embodiment of the present invention.

[0036] Figure 3 The invention is a schematic structural diagram of a linkage unlocking component of an elevator sliding rod car door lock device according to an embodiment of the present invention.

[0037] Figure 4 The present invention is a schematic structural diagram of an unlocked state of a lock hook assembly of an elevator sliding rod car door lock device according to an embodiment of the present invention.

[0038] Figure 5 The present invention is a schematic diagram of an elevator sliding bar car door lock device in an unlocking area, with a lock hook assembly unlocked when the door is pulled open in the car.

[0039] Figure 6 It is a schematic diagram of a locked state of a lock hook assembly when a motor mistakenly opens the door in a non-unlocking area of ​​an elevator slide bar car door lock device according to an embodiment of the present invention.

[0040] In the figure: 1-connecting block, 101-first connecting block, 102-second connecting block, 2-door knife bottom plate, 3-slider, 4-crank connecting block, 401-first crank connecting block, 402-second crank connecting block, 5-linked unlocking bottom plate, 6-first door knife arm, 7-linkage plate, 8-lock hook, 9-second door knife arm, 10-billiard ball, 11-starting block tension spring, 12-starting block, 13-linkage pin, 14-slider compression spring, 15-first slide rod, 16-second slide rod, 17-roller, 18-starting rod, 19-connecting block pin. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0042] See the instruction manual Figure 1-6 , is an elevator sliding bar car door lock device, including a door knife arm assembly, a sliding assembly, a lock hook assembly, a starting assembly, a linkage plate 7, a crank connection block 4 and a linkage unlocking bottom plate 5. The crank connection block 4 includes a first crank connection block 401 and a second crank connection block 402. One end of the first crank connection block 401 and the second crank connection block 402 are respectively hinged on the linkage unlocking bottom plate 5 through a pin shaft, and the other end is respectively hinged on the linkage plate 7 through a pin shaft. The first crank connection block 401 and the second crank connection block 402 are arranged in parallel and can rotate around the pin shaft.

[0043] The starting assembly includes a starting block 12, a billiard ball 10, a starting block tension spring 11 and a starting rod 18. An arc chute is provided on the linkage unlocking base plate 5. One end of the starting rod 18 is installed on the linkage plate 7, and the other end passes through the arc chute on the linkage unlocking base plate 5 and is connected to the synchronous belt. The starting rod 18 can move in the arc chute under the action of the synchronous belt. The starting block 12 is rotatably installed on the back of the linkage unlocking base plate 5. A limit shaft is provided above the starting block 12, and the limit shaft is fixed on the linkage unlocking base plate 5 to limit the rotation range of the starting block 12. A tension spring fixing shaft is provided on one side of the starting block 12, and the two ends of the starting block tension spring 11 are respectively hooked with the tension spring fixing shaft and the limit shaft. An arc groove is provided on the other side of the starting block 12. When the starting rod 18 slides into the arc groove, the starting block 12 rotates clockwise under the action of the starting block tension spring 11 until it clamps the starting rod 18, so that the starting rod 18 and the starting block 12 are kept fixed and do not rotate together. A billiard ball 10 is installed at the lower end of the starting block 12. The billiard ball 10 is used to cooperate with the fixed striking bow at the center position of the door machine. When the billiard ball 10 contacts the fixed striking bow, the starting block 12 rotates counterclockwise, and the arc groove is disengaged from the starting rod 18.

[0044] The sliding assembly includes a slider 3, a first slider 15, a second slider 16 and a slider compression spring 14. The upper and lower ends of the slider 3 are respectively provided with through holes, the first slider 15 passes through the hole at the lower end of the slider 3 and the slider compression spring 14 in sequence and is fixed to the linkage plate 7, and the second slider 16 passes through the hole at the upper end of the slider 3 and is fixed to the linkage plate 7.

[0045] The door knife arm assembly includes a first door knife arm 6, a second door knife arm 9, a connecting block 1, a connecting block pin 19 and a linkage pin 13. The elevator car door lock also includes a door knife base plate 2, and the connecting block 1 includes a first connecting block 101 and a second connecting block 102. The number of the connecting block pins 19 corresponds to the number of the connecting blocks 1, and they are respectively arranged on the door knife base plate 2 along a vertical line. The first connecting block 101 is rotatably mounted on the connecting block pin 19 located at the upper part, and the second connecting block 102 is rotatably mounted on the connecting block pin 19 located at the lower part. One end of the first connecting block 101 and the second connecting block 102 are rotatably connected to the first door knife arm 6, respectively, and the other ends of the first connecting block 101 and the second connecting block 102 are rotatably connected to the second door knife arm 9, respectively. The first connecting block 101 and the second connecting block 102 form a parallelogram mechanism with the first door knife arm 6 and the second door knife arm 9. The slider 3 is provided with a vertical waist-shaped groove, and one end of the linkage pin 13 is rotatably arranged in the waist-shaped groove, so that the linkage pin 13 can slide up and down in the waist-shaped groove, and the other end of the linkage pin 13 is connected to the first door knife arm 6.

[0046] The lock hook assembly includes a lock hook 8 and a roller 17. The lock hook 8 is installed on the linkage plate 7 through a pin shaft. The roller 17 is located on the side of the lock hook 8 close to the slider 3. The roller 17 contacts the side of the slider 3. When the slider 3 slides left and right, the roller 17 rolls up and down on the side of the slider 3, causing the lock hook 8 to rotate back and forth to achieve unlocking and locking.

[0047] In real life, there are several different situations for the opening and closing of car doors, such as: normal opening and closing of the door when the car is in the unlocking area, door prying inside the car and door opening outside the car when the motor fails; door opening by mistake due to motor failure when the car is in the non-unlocking area, door prying inside the car and door opening outside the car. The following is a detailed introduction to the above situations:

[0048] Set the movement direction of the starter component when opening the door to the first direction (refer to Figure 3 When the door is closed, the movement direction of the starter assembly is the second direction (reference Figure 3 When the start assembly drives the linkage plate 7 to move in the first direction, the slider 3 compresses the slider compression spring 14 and the slider 3 can touch the lock hook assembly to unlock the lock hook assembly; when the start assembly drives the linkage plate 7 to move in the second direction, the slider compression spring 14 releases the pressure to push the slider 3 to slide in the first direction, the slider 3 is separated from the lock hook assembly, and the lock hook assembly is locked.

[0049] like Figure 4As shown, when the car is in the unlocking area, the motor drives the synchronous belt to move in the first direction, and the synchronous belt drives the starting rod 18, which is transmitted through the crank connecting block 4 to make the linkage plate 7 swing in the first direction, and the linkage plate 7 drives the slider 3 to move in the first direction, so that the linkage pin 13 in the slider 3 moves toward the lower end of the waist-shaped groove. At the same time, under the transmission of the connecting block 1, the first door knife arm 6 and the second door knife arm 9 are opened to both sides to contact the floor door ball respectively, and the slider 3 remains stationary, and the linkage plate 7 continues to move in the first direction. The slider 3 compresses the slider compression spring 14 along the second slide bar 16 and the first slide bar 15, and the roller 17 rolls downward along the slider 3, driving the lock hook 8 to rotate counterclockwise and lift it to the left side of the lock hook 8 to support the second slide bar 16, and the car door opens.

[0050] like Figure 1 As shown, when the car is in the unlocking area, the motor moves the synchronous belt to the second direction, the collision ball 10 hits the fixed collision bow fixed on the bottom plate of the door machine, the start block 12 rotates counterclockwise and lifts up, the arc groove on the start block 12 separates from the start rod 18, and the start rod 18 moves in the second direction under the action of the synchronous belt, driving the linkage plate 7 to swing in the second direction, the slider compression spring 14 releases the pressure to make the slider 3 slide in the first direction relative to the linkage plate 7, the slider 3 separates from the roller 17, and the lock hook 8 rotates clockwise under the action of its own weight, and the lock hook 8 is locked. The linkage plate 7 drives the sliding assembly as a whole to move in the second direction, so that the linkage pin 13 moves toward the upper end of the waist groove, the first door knife arm 6 and the second door knife arm 9 close inward, and the car door is closed.

[0051] like Figure 5 As shown, when the car is in the unlocking area, when the motor does not move, the starting rod 18 and the linkage plate 7 do not move, the door is pried open from the car, and the door hanging plate drives the door knife bottom plate to move in the first direction until the first door knife arm 6 touches the auxiliary door ball of the floor door, and a gap is left between the first door knife arm 6 and the second door knife arm 9. The first door knife arm 6 and the second door knife arm 9 are closed inwardly under the action of the door hanging plate, driving the slider 3 to slide in the second direction, compressing the slider compression spring 14, pushing the lock hook 8 to rotate counterclockwise, and the car door opens; the door hanging plate continues to move in the first direction, the first door knife arm 6 and the second door knife arm 9 open the floor door ball, and the floor door opens.

[0052] like Figure 5 As shown, when the car is in the unlocking area, the door is pried open from outside the car, and the floor door is unlocked using a triangular key. The main door ball of the floor door touches the second door knife arm 9, and the first door knife arm 6 and the second door knife arm 9 move inward, driving the slider 3 to slide in the second direction, compressing the slider compression spring 14, pushing the lock hook 8 to rotate counterclockwise, and the car door opens.

[0053] like Figure 6As shown, when the car is in the non-unlocking area, the motor is activated, the first door knife arm 6 and the second door knife arm 9 are opened and cannot touch the floor door ball, the slider 3 continues to move in the first direction, the slider compression spring 14 is not compressed, the lock hook 8 does not move, and the lock hook 8 is still in the locked state;

[0054] When the car is in the non-unlocking area, the motor does not move, the starter rod 18 and the linkage plate 7 do not move, the door is opened from the car, the door hanging plate drives the door knife bottom plate 2 to move in the first direction, the first door knife arm 6 and the second door knife arm 9 are opened and cannot touch the floor door ball, the slider 3 continues to move in the first direction, the slider compression spring 14 is not compressed, the lock hook 8 does not move, and the lock hook 8 is still in the locked state;

[0055] When the car is in the non-unlocking area, pry the door from outside the car, use the triangular key to unlock the floor door, manually apply force to close the first door knife arm 6 and the second door knife arm 9 inward, drive the slider 3 to slide in the second direction, compress the slider compression spring 14, push the lock hook 8 to rotate counterclockwise, and unlock the car door.

[0056] Thus, the present invention realizes an elevator slide bar car door lock device and its control method, the elevator slide bar car door lock device includes a door knife arm assembly, a swing assembly, a sliding assembly, a lock hook assembly and a starting assembly. When the car moves to the floor station, the door knife arm assembly extends between the floor door balls, the synchronous belt drives the starting rod to move, the starting rod action causes the linkage plate to swing, the slider compresses the spring and the lock hook is lifted up to the limit position, then the linkage plate moves with the slider and the lock hook, and the first door knife arm is controlled to move through the slider waist groove, so that the first door knife arm and the second door knife arm are opened outward to support the floor door ball, so as to realize the floor door unlocking. When the elevator is in the unlocking area, the car door can be pried open from inside and outside the car; when the elevator is in the non-unlocking area, people in the car cannot pry open the car door, and even if the motor is powered on, the car door cannot be opened. The structure is simple and the safety performance is high.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An elevator sliding rod car door lock device, characterized in that: It includes a door knife arm assembly, a sliding assembly, a lock hook assembly, a starting assembly and a linkage plate, wherein the starting assembly is connected to the linkage plate to drive the linkage plate to move; The door knife arm assembly includes a first door knife arm, a second door knife arm, a connecting block, a connecting block pin and a linkage pin, and the sliding assembly includes a slider, a first sliding rod and a slider compression spring; The connecting block pin is fixed on the door machine hanging plate, the connecting block is rotatably mounted on the connecting block pin, one end of the connecting block is connected to the first door knife arm, and the other end is connected to the second door knife arm, the linkage pin is movably arranged in the slider, and the first door knife arm is mounted on the linkage pin; The first slide bar passes through the slider and the slider compression spring in sequence, and the two ends of the first slide bar are fixed to the linkage plate, and the slider is configured to be able to slide left and right on the first slide bar, and the linkage plate is configured so that when the starting component is driven to move in a preset first direction, the linkage plate drives the slider to move, and the slider touches the lock hook component to unlock the lock hook component, and when the slider moves in the first direction, the slider compression spring is compressed, and when the linkage plate is further configured to move in a preset second direction, the slider compression spring releases pressure to push the slider to move in the first direction, and the slider is disengaged from the lock hook component to lock the lock hook component; The lock hook assembly comprises a lock hook and a roller, wherein the roller is arranged on the lock hook and configured to roll along the side of the slider to drive the lock hook to rotate up and down; The connecting block includes a first connecting block and a second connecting block. The first connecting block and the second connecting block are arranged in parallel and form a parallelogram mechanism with the first door knife arm and the second door knife arm.

2. An elevator sliding rod car door lock device according to claim 1, characterized in that: The elevator slide bar car door lock device also includes a linkage unlocking base plate and a crank connecting block, one end of the crank connecting block is rotatably mounted on the linkage unlocking base plate, and the other end is rotatably mounted on the linkage plate; The crank connecting block includes a first crank connecting block and a second crank connecting block, and the first crank connecting block and the second crank connecting block are arranged in parallel.

3. An elevator sliding rod car door lock device according to claim 2, characterized in that: The starting assembly includes a starting rod, an arc-shaped slide groove is provided on the linkage unlocking bottom plate, one end of the starting rod is mounted on the linkage plate, and the other end passes through the arc-shaped slide groove of the linkage unlocking bottom plate and is connected to the synchronous belt; A start block, which is rotatably mounted on the back of the linkage unlocking bottom plate, and is configured to be able to clamp the start rod to keep the start rod stationary; A billiard ball is arranged on the starting block, and the billiard ball is configured to cooperate with a fixed striking bow at the center of the door machine. When the billiard ball contacts the fixed striking bow, the billiard ball can drive the starting block to rotate, and the starting block is separated from the starting rod.

4. The elevator sliding bar car door lock device according to claim 1, characterized in that: The sliding assembly further includes a second sliding rod, the second sliding rod passes through the sliding block, and one end of the second sliding rod is fixed on the linkage plate.

5. The elevator sliding bar car door lock device according to claim 1, characterized in that: The sliding block also includes a waist-shaped groove arranged vertically, and the linkage pin shaft can move up and down along the waist-shaped groove.

6. The elevator sliding bar car door lock device according to claim 1, characterized in that: The elevator slide bar car door lock device also includes a door knife bottom plate, the door knife bottom plate is installed on the door machine hanging plate, and the connecting block pin is installed on the door knife bottom plate.

7. The elevator sliding bar car door lock device according to claim 3, characterized in that: A limit shaft is provided above the start block, the limit shaft is located on the linkage unlocking bottom plate, and the limit shaft is configured to limit the rotation range of the start block.

8. An elevator sliding bar car door lock device according to claim 7, characterized in that: The starting assembly also includes a starting block tension spring, the starting block is provided with a tension spring fixing shaft, and two ends of the starting block tension spring are respectively connected to the tension spring fixing shaft and the limiting shaft.

9. The elevator sliding bar car door lock device according to claim 3, characterized in that: The starting block comprises an arc groove, and the arc groove is configured to clamp the starting rod so that the starting rod does not move in the arc-shaped sliding groove.

10. A control method for an elevator sliding rod car door lock device according to any one of claims 1 to 9, characterized in that: When the car is in the unlocking area, the starting component drives the linkage plate to move in the first direction, and the slider moves in the first direction along with the linkage plate, so that the linkage pin moves toward the lower end of the slider, and at the same time, under the transmission of the connecting block, the first door knife arm and the second door knife arm are opened to both sides to contact the floor door ball respectively, and the slider remains stationary, and the linkage plate continues to move in the first direction, and the slider compresses the slider compression spring along the first slide rod, and the slider touches the lock hook assembly to make the lock hook assembly unlock, so as to realize normal door opening; The starting assembly drives the linkage plate to move in the second direction, and the slider moves in the second direction along with the linkage plate, so that the linkage pin axis moves to the upper end of the slider. Under the transmission of the connecting block, the first door knife arm and the second door knife arm close inward, and at the same time, the slider compression spring releases the pressure to push the slider to move in the first direction, and the slider disengages from the lock hook assembly to make the lock hook assembly perform a locking action to achieve normal door closing.

11. A control method for an elevator sliding rod car door lock device according to claim 10, characterized in that: The elevator sliding bar car door lock device also includes a door knife bottom plate, the door knife bottom plate is installed on the door machine hanging plate, the connecting block pin is installed on the door knife bottom plate, the starting component does not work, when the door is pried from the car, the door machine hanging plate drives the door knife bottom plate to move in the first direction until the first door knife arm touches the floor door auxiliary door ball, and a gap is left between the first door knife arm and the second door knife arm. The first door knife arm and the second door knife arm are closed inwardly under the action of the door machine hanging plate, driving the slider to slide in the second direction, compressing the slider compression spring, and the slider touches the lock hook assembly to make the lock hook assembly unlock, thereby unlocking the car door; the door machine hanging plate continues to move in the first direction, the first door knife arm and the second door knife arm prop up the floor door ball, and the floor door is opened; When the starting assembly does not work and the door is pried open from outside the car, a triangular key is used to unlock the floor door, and the main door ball of the floor door touches the second door knife arm, driving the first door knife arm and the second door knife arm to move inward, and under the transmission of the connecting block, the slider is driven to slide in the second direction, compressing the slider compression spring, and the slider touches the lock hook assembly to unlock the lock hook assembly, thereby unlocking the car door.

12. A control method for an elevator sliding rod car door lock device according to claim 11, characterized in that: The elevator slide bar car door lock device also includes a linkage unlocking base plate and a crank connecting block, one end of the crank connecting block is rotatably mounted on the linkage unlocking base plate, and the other end is rotatably mounted on the linkage plate; The starting assembly includes a starting rod, an arc-shaped slide groove is provided on the linkage unlocking bottom plate, one end of the starting rod is mounted on the linkage plate, and the other end passes through the arc-shaped slide groove of the linkage unlocking bottom plate and is connected to the synchronous belt; When the car is in the non-unlocking area, the starting assembly drives the linkage plate to move in the first direction, and the slider moves in the first direction along with the linkage plate, so that the linkage pin moves to the lower end of the slider. Under the transmission of the connecting block, the first door knife arm and the second door knife arm are opened and cannot touch the floor door ball. The slider continues to move in the first direction, the slider compression spring is not compressed, the lock hook assembly does not contact the slider, the lock hook assembly does not move, and the car door does not open; The starter rod and the linkage plate do not move, the door is pried from the car, the door machine hanging plate drives the door knife bottom plate to move in the first direction, the first door knife arm and the second door knife arm are opened and cannot touch the floor door ball, the slider continues to move in the first direction, the slider compression spring is not compressed, the lock hook assembly does not contact the slider, the lock hook assembly does not move, and the car door does not open; When prying the door from outside the car, use a triangular key to unlock the floor door, manually apply force to close the first door knife arm and the second door knife arm inward, drive the slider to slide in the second direction, compress the slider compression spring, and the slider touches the lock hook assembly to unlock the lock hook assembly, thereby unlocking the car door.

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