An interlock for elevator door operators and elevator

Abstract

The application discloses an elevator door machine locking mechanism and an elevator, wherein a linkage lock for an elevator door machine comprises multiple slide rails, a first locking mechanism, a second locking mechanism and a third locking mechanism, the multiple slide rails are sequentially arranged in a sliding mode, the multiple slide rails are provided with the first locking mechanism for locking, the outermost slide rail is provided with a hook arm, the hook arm is hingedly arranged in an arm groove of the outermost slide rail and is connected with a torsional spring for resetting, an initial position is arranged in the arm groove, a reset position is 90 degrees away from the initial position, the initial position is locked by the second locking mechanism, and the reset position is locked by the third locking mechanism.

Description

Technical Field

[0001] This invention relates to the field of elevator manufacturing, and more specifically to a linkage lock for elevator door operators and an elevator. Background Technology

[0002] An elevator door operator is a mechanism responsible for opening and closing elevator hall and car doors. When it receives an elevator opening or closing signal, the door operator, through its built-in control system, controls the door opening motor, converting the torque generated by the motor into a force in a specific direction to close or open the door. When the force preventing the door from closing exceeds a certain value (n), the door operator automatically stops closing the door and opens it in the opposite direction, providing a certain degree of door-closing protection. To reduce elevator accidents, elevator door operators are often equipped with anti-pry door components to prevent passengers from prying open the car doors when the elevator is not in a leveling zone. During an elevator accident, due to the elevator's fall protection components (speed limiting system, safety brake), the elevator often stops outside the leveling zone. However, in a suitable location during an accident, where the difference in height between the elevator car floor and the leveling threshold is small, if the car doors and landing doors can be pried open in the event of a malfunction, passengers inside can quickly rescue themselves, reducing rescue time and preventing secondary accidents. Summary of the Invention

[0003] The purpose of this invention is to overcome the above-mentioned shortcomings in the prior art and to provide a linkage lock for elevator door operators and an elevator with a reasonable structural design.

[0004] The technical solution adopted by the present invention to solve the above problems is: a linkage lock for elevator door operators, comprising multiple slide rails, a first locking mechanism, a second locking mechanism, and a third locking mechanism. The multiple slide rails are slidably arranged in sequence. The multiple slide rails are locked by the first locking mechanism. A hook arm is provided on the outermost slide rail. The hook arm is hinged in the arm groove of the outermost slide rail and connected to a torsion spring for reset. The initial position is set in the arm groove, and the reset position is at 90° with the initial position. The initial position is locked by the second locking mechanism, and the reset position is locked by the third locking mechanism.

[0005] Preferably, the last slide rail in the multi-section slide rail is connected to a secondary unlocking device. The secondary unlocking device includes a fixed base, rollers, a pressure roller, a fixing belt, a guide wheel, a fixing device, and a fixing cable. The rollers, pressure rollers, and guide wheels are rotatably mounted on the fixed base. The rollers and pressure rollers are opposite each other and adapted to the elevator speed-limiting rope. The pressure rollers have protrusions that fit the wheel surfaces on both sides of the guide wheel. The pressure rollers are equipped with torsion springs to initially detach from the guide wheel surface. The fixing cable is fixed to the fixing device via the groove of the guide wheel. The belt is fixed to the retainer via the guide wheel on both sides. The retainer is fixed to the elevator speed limiting rope at the corresponding position. The fixing seat is fixed to the car. The second locking mechanism is L-shaped, with one end fixed to the head end of the slide rail component at the second end, and the other end inserted into the slide rail component at the head end and longitudinally sliding and fitting with the hook arm in its initial position. The fixing belt is fixed to the last slide rail component via the first connecting cable. The fixing cable is fixed to the traction cable via the second connecting cable. The lower end of the last slide rail component is provided with a support plate for contacting and limiting the slide rail component.

[0006] Preferably, the multi-section slide rail includes a first slide rail component, a second slide rail component, and a third slide rail component. The first slide rail component and the second slide rail component are respectively provided with pulley grooves. The second slide rail component and the third slide rail component are provided with rubber pulleys at the matching positions to adapt to the pulley grooves and form damped sliding.

[0007] Preferably, the sliding seat is provided with a backstop mechanism between adjacent slide rail components, and the backstop direction is upward. The backstop mechanism includes a backstop hook and backstop teeth. The backstop hook is hinged to the outer slide rail component, and several backstop teeth are arranged on the adjacent inner slide rail components.

[0008] Preferably, the sliding device adopts a multi-section slide rail, and the first locking mechanism unlocking includes a first sleeve, a second sleeve, and a third sleeve. The first sleeve, the second sleeve, and the third sleeve are slidably connected in sequence. The cavities of the first sleeve, the second sleeve, and the third sleeve are connected and equipped with a reset spring. One end of the traction cable is connected to the first sleeve, and the traction cable is fixed to the elevator speed limiting rope at its fixed end via several guide wheels.

[0009] Preferably, the fixing strap and fixing cable are fixed on the elastic clips on the fixing device.

[0010] Preferably, the fixing strap and fixing cable are elastic.

[0011] Preferably, the first sleeve is positioned at the bottom of the cavity of the second sleeve and magnetically attracted, and the second sleeve is positioned at the bottom of the cavity of the third sleeve and magnetically attracted.

[0012] An elevator includes a car body, a door operator, a traction system, and a speed limiting system. The door operator, traction system, and speed limiting system are integrated with the car body. The door operator includes a mounting plate, a door operator plate, a linkage lock for the elevator door operator, and a door knife assembly. The door operator plate is mounted on the car. Both ends of the mounting plate are fixed to the outermost slide rail components of a multi-section slide rail. The door knife holder is provided with a first connecting shaft and a second connecting shaft. The car door mounting plate is slidably mounted on the door operator plate. The mounting plate has a transverse... The first sliding groove and the car door hanging plate are provided with a longitudinal second sliding groove. The first connecting shaft is adapted to slide in the first sliding groove and the second connecting shaft is adapted to slide on the second sliding groove. When the door knife is in the door ball position, the door is opened from the inside of the car door by the action of the door knife. A hook ring adapted to the hook arm is provided on the elevator shaft side. When the elevator speed limiting system is working, the hook arm and the hook ring cooperate, and the mounting plate is unlocked and dropped by the multi-section slide rail, which drives the door knife to drop, so that the door knife is in the door ball position. After the drop stops, the second connecting shaft does not disengage from the second sliding groove.

[0013] An elevator is characterized in that it includes a car body and several linkage locks for the elevator door operator, wherein the linkage locks for the elevator door operator are fixed on the car, and a hook ring adapted to the hook arm is provided on the side of the elevator shaft, wherein the hook arm and the hook ring cooperate when the elevator speed limiting system is working.

[0014] Compared with the prior art, the present invention has the following advantages and effects:

[0015] (1) When this product is applied to an elevator, specifically to the door operator, after the elevator falls and the safety clamp stops, the first locking mechanism is unlocked. At this time, the sliding device slides down and the second locking mechanism is unlocked. A hook ring that meshes with the hook arm is provided at the elevator's matching position, so that the hook arm and hook ring mesh. After the elevator stops completely, the hook arm falls and the meshing hook ring lowers the door knife to contact the door ball, which can be regarded as being at the landing door position. This allows the elevator car to be opened in time to exit the car when it is not at the landing door position but the car and the leveling position are at a safe height. This provides a self-rescue situation, reduces rescue time, and can also avoid the occurrence of secondary accidents.

[0016] (2) At the same time, when this product is used alone on an elevator, multiple sets of this linkage lock are installed on the elevator. After the elevator speed limiting system works, the safety clamp brakes the elevator. The hook arm and hook ring cooperate to provide auxiliary support for the elevator and increase the elevator's protection measures. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the linkage lock of the elevator door operator according to an embodiment of the present invention.

[0018] Figure 2This is a schematic diagram of the hook arm configuration in the linkage lock of the elevator door operator according to an embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the structure of the linkage lock of the elevator door operator according to an embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the pulley groove arrangement in the linkage lock of the elevator door operator according to an embodiment of the present invention.

[0021] Figure 5 This is a schematic diagram of the structure of the secondary unlocker according to an embodiment of the present invention.

[0022] Figure 6 This is a schematic diagram of the anti-reverse mechanism according to an embodiment of the present invention.

[0023] Figure 7 This is a schematic diagram of the structure of the hook arm and hook ring in an embodiment of the present invention.

[0024] Figure 8 This is a schematic diagram of the gate operator setup according to an embodiment of the present invention.

[0025] Figure 9 This is a schematic diagram of the multi-section guide rail and shaft connection plate arrangement structure according to an embodiment of the present invention.

[0026] Figure Numbers: Sliding Device 100, Door Operator Plate 101, Hook Arm 102, Arm Groove 103, Torsion Spring 104, Door Knife 105, First Sleeve 106, Second Sleeve 107, Third Sleeve 108, Return Spring 109, Traction Cable 110, Elevator Speed ​​Limiting Rope 111 First slide rail component 112, second slide rail component 113, third slide rail component 114, pulley groove 115, rubber pulley 116, reverse hook 117, anti-reverse tooth 118, fixing seat 119, roller 120, pressure wheel 121, protrusion 1211, fixing belt 122, guide wheel 123, fixing device 124, fixing cable 125, elastic clip 126, support plate 127, second locking mechanism 128, third locking mechanism 129, speed limiter rope 130, hook ring 131, sliding plate 132, multi-section guide rail component 133, door knife holder 134, first sliding groove 136, second sliding groove 137, mounting plate 138, belt 139, car door hanging plate 140. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0028] Example 1:

[0029] See Figures 1-8This embodiment discloses a linkage lock for an elevator door operator, comprising multiple slide rails, a first locking mechanism, a second locking mechanism, and a third locking mechanism. The multiple slide rails are slidably arranged in sequence. Each slide rail is locked by the first locking mechanism. A hook arm 102 is provided on the outermost slide rail. The hook arm 102 is hinged in the arm groove 103 of the outermost slide rail and connected to a torsion spring 104 for reset. The initial position is set in the arm groove 103, and the reset position is at 90° with the initial position. The initial position is locked by the second locking mechanism, and the reset position is locked by the third locking mechanism.

[0030] This embodiment relates to an elevator, specifically applying the above-described structure to a door operator. The elevator includes a car body, a door operator, a traction system, and a speed limiting system. The door operator, traction system, and speed limiting system are integrated with the car body. The door operator plate 101 is mounted on the car. The mounting plate 138 is fixed at both ends to the outermost slide rail component of a multi-section slide rail. The door knife holder 134 is provided with a first connecting shaft and a second connecting shaft. The car door hanging plate 140 is slidably mounted on the door operator plate 101. The mounting plate 138 is provided with a transverse first sliding groove 136. The car door mounting plate is provided with a longitudinal second sliding groove 137. The first connecting shaft is adapted to slide in the first sliding groove, and the second connecting shaft is adapted to slide on the second sliding groove 137. When the door knife 105 is in the door ball position, the door is opened from the inside of the car door by the action of the door knife 105. A hook ring 131 adapted to the hook arm 102 is provided on the elevator shaft side. When the elevator speed limiting system is working, the hook arm and the hook ring cooperate, and the mounting plate is unlocked and dropped by the multi-section slide rail, which drives the door knife 105 to drop, so that the door knife 105 is in the door ball position. After the drop stops, the second connecting shaft does not disengage from the second sliding groove.

[0031] In this embodiment, under the power-on state and driven by the door operator motor, the power shaft of the door knife 105 needs to be connected to the belt 139 to drive the door knife 105 to unlock and slide. The belt 139 is fixedly connected to the sliding plate 132 and is laterally slidably mounted on the door operator plate 101. The door knife holder 134 is connected by a multi-section guide rail 133 on one side. The connecting seat of the multi-section guide rail 133 is fixed to the sliding plate 132. The guide rail at the end of the multi-section guide rail 133 is connected to the connecting shaft plate 141 (which has a shaft hole 142 that is compatible with the power shaft). After the door knife falls with the mounting plate, the multi-section guide rail is stretched as it falls because the shaft plate is connected to the power shaft. When powered on, the belt drives the sliding plate to slide. Due to the connection of the multi-section guide rail, the shaft plate drives the power shaft to move, thus unlocking the door knife 105. This allows the door knife 105 to still be electrically driven by the belt 139 after it falls.

[0032] When the door operator interlock is applied to an elevator, in the event of an elevator malfunction and fall, the elevator safety brake will brake the elevator to an emergency stop. The elevator will then operate in the following three modes:

[0033] S1: When the elevator car is stopped at the landing door position: the blade of the door knife 105 contacts the door ball. When the power is on, the door operator motor drives the door knife 105 to open the car door lock and the car door opens. When the power is off, the door is pried open from inside the car and the door knife 105 opens the car door lock and the car door and landing door open.

[0034] S2: When the elevator car is not at the landing door position but the car is at a non-safe height from the landing position: the door knife 105 does not contact the door ball and cannot open the car door;

[0035] S3: When the elevator car is not stopped at the landing door position but the car and the landing position are at a safe height: When the elevator falls, the elevator safety brake will brake the elevator, the door knife 105 will descend and the door ball will contact. In the power-on state, the door operator motor will drive the door knife 105 to open the car door lock, and the car door will open. In the power-off state, the door will be pried open from inside the car, the door knife 105 will open the car door lock, and the car door and landing door will open. The maximum descent stroke of the door knife 105 is less than or equal to the safe height.

[0036] Specifically, in this embodiment, the door knife 105 should be able to pry open the door from the inside when it is stopped at the landing door position, but it cannot pry open the door from the inside when it is not at the landing door position. Specifically, the applicant disclosed a door knife 105 linkage device in Chinese Patent Publication No.: CN111717767B, which is applied to the structure of this door knife 105. That is, if the car is in the unlocking area, the door knife 105 is in the open state. When the door operator is energized or de-energized, and a person inside the car tries to open the door, because the center line of the main tension spring is below the center of the rotating arm shaft, the left and right blades of door knife 105 will not retract. As the car door is opened, the lock hook will contact the moving plate. After the lock hook secures the moving plate and moves a certain distance to the left, the right blade will contact the landing ball. Under this resistance, it will continue to move, and the rotating arm will rotate clockwise under the action of the right blade. The power shaft triggers and drives the lever to rotate counterclockwise. The lever cooperates with the lock hook wheel to lift the lock hook, and the lock pin and lock hole are in a disengaged state, realizing the normal unlocking of the car door lock hook. However, if the car is outside the unlocking area at this time, when the left and right blades retract without touching the landing ball, the left and right blades continue to retract without resistance, while the power plate continues to swing counterclockwise to the limit under the force of the door operator. At this time, the first and second drive shafts are not along the power The first and second moving parts on the plate are in normal cooperation with the lock hook wheel, and the lock hook does not lift. At this time, the lock pin and the lock hole are in a meshing state. Under the action of the door operator, the door knife 105 moves to the left as a whole. The lock hook will contact the moving plate. Due to the action of the elastic component, the lock hook will hook the moving plate and move to the left a certain distance until the lock hook and the moving plate coincide with the lock groove wall of the lock hook plate. The door knife 105 will not be able to continue to move to the left, so that the door lock hook cannot be unlocked outside the unlocking area. During this movement, the lock pin and the lock hole are in a meshing state, so that the door lock hook cannot be unlocked outside the unlocking area. That is, the above structure can realize the functions of S1 and S2. At the same time, in the operation of S3, the door knife 105 is lowered to contact the door ball by the above method, which can be regarded as the landing door position, so the function of S3 can be realized.

[0037] When this product is applied to an elevator door operator, after the elevator malfunctions and the safety brake stops the descent, the first locking mechanism unlocks. At this time, the sliding device (multi-section slide rail) 100 slides down, and the second locking mechanism 128 unlocks. A hook ring is provided at the elevator's adaptive position to engage with the hook arm 102, so that the hook arm 102 engages with the hook ring. After the elevator stops completely, the hook arm 102 falls, and the engaged hook ring lowers the door knife 105 to contact the door ball, which can be regarded as the landing door position, thus realizing the function of S3.

[0038] In this embodiment, the last slide rail of the multi-section slide rail is connected to a secondary unlocking device. The secondary unlocking device includes a fixed base 119, a roller 120, a pressure roller 121, a fixing belt 122, a guide wheel 123, a fixing device 124, and a fixing cable 125. The roller 120, pressure roller 121, and guide wheel 123 are rotatably mounted on the fixed base 119. The roller 120 and pressure roller 121 are opposite to each other and adapted to the elevator speed limiting rope. The pressure roller 121 is provided with a protrusion 1211 that adapts to the two wheel surfaces of the guide wheel 123. The pressure roller 121 is provided with a torsion spring 104 to initially detach from the wheel surface of the guide wheel 123. The fixing cable 125 is connected to the fixing device 124 via the wheel groove of the guide wheel 123. 4. Fixing: The fixing belt 122 is fixed to the fixing device 124 via the two wheel surfaces of the guide wheel 123. The fixing device 124 is fixed to the elevator speed limiting rope at the corresponding position. The fixing seat 119 is fixed to the car. The second locking mechanism 128 is L-shaped, with one end fixed to the head end of the secondary slide rail component, and the other end inserted into the slide rail component at the head end and longitudinally sliding and fitting with the hook arm 102 in its initial position. The fixing belt 122 is fixed to the last slide rail component via the first connecting cable. The fixing cable 125 is fixed to the traction cable 110 via the second connecting cable. The lower end of the last slide rail component is provided with a support plate 127 for contacting and limiting the slide rail component. Since the shortest braking distance of the elevator safety brake is about 5m, if... If the hook arm 102 falls without complete braking, it is prone to breakage. Therefore, after the elevator stops, the auxiliary unlocking device unlocks, and the sliding device 100 is unlocked and lowered. During this process, the elevator falls, the elevator speed governor activates, and the elevator speed governor rope stops running. At this time, the elevator safety brake starts to activate, and the elevator car decelerates. During this process, on the one hand, the second connecting cable connects to the traction cable 110. At this time, as the car falls, the first sleeve 106 and the second sleeve 107 pull and contract, and the sliding rail of the sliding device 100 unlocks. After unlocking, as the elevator continues to fall, the fixing cable 125 exceeds the preload of the fixing device 124 and disengages. Similarly, the fixing belt 122 also exceeds the preload and disengages. Due to the rollers during the elevator's fall... Roller 120 and roller 121 will rotate. Before disengagement, the protrusion 1211 of roller 121 will fit against the wheel surface of guide roller 123, preventing the fixing belt 122 from completely disengaging. At this time, the first connecting cable will still pull the outermost slide rail (first slide rail 112), and due to the limiting of the support plate 127, the second slide rail (second slide rail 113) will not fall. When the elevator is fully braked and roller 120 stops rolling, roller 121 will reset under the action of torsion spring, and the fixing belt 122 will disengage. The outermost slide rail (first slide rail 112) will fall, and the hook arm 102 will disengage from the restriction of the second locking mechanism 128 and re-engage with the hook ring. Therefore, this structure allows the lowering of the mounting plate to be performed after the elevator has been fully braked and stopped.This makes the structure more stable.

[0039] The multi-section slide rail includes a first slide rail component 112, a second slide rail component 113, and a third slide rail component 114. The first slide rail component 112 and the second slide rail component 113 are respectively provided with pulley grooves 115. The second slide rail component 113 and the third slide rail component 114 are provided with rubber pulleys 116 at the matching positions, which are adapted to the pulley grooves 115 to form damped sliding. Damped sliding makes it less likely to generate large impacts during the falling process of the mounting plate, making the structure more stable.

[0040] In one embodiment, an anti-reverse mechanism is adapted between adjacent slide rail components of the sliding seat, with the anti-reverse direction being upward. The anti-reverse mechanism includes an anti-reverse hook 117 and anti-reverse teeth 118. The anti-reverse hook 117 is hinged to the outer slide rail component, and several anti-reverse teeth 118 are arranged on adjacent inner slide rail components. Therefore, after the slide rail component of the sliding device 100 (multi-section slide rail) slides to the bottom, the hook arm 102 contacts the hook ring. Under the downward force of the elevator car's gravity, the hook arm 102 and the hook ring... In conjunction with the anti-reverse mechanism, the various slide rail components cannot be reset, thus providing better support for the car. Since the hook arm 102 and the hook ring are only engaged at the appropriate exit position of the car, after the car stops and is braked by the safety clamp, the hook arm 102 and the hook ring work together to provide secondary support, allowing the people inside the car to exit the car more easily. At the same time, this mechanism can provide additional auxiliary support for the car, which can improve the safety of the car to a certain extent and reduce the occurrence of secondary accidents.

[0041] In this embodiment, the sliding device 100 specifically adopts a three-section sliding rail. The first locking mechanism unlocking includes a first sleeve 106, a second sleeve 107, and a third sleeve 108. The first sleeve 106, the second sleeve 107, and the third sleeve 108 are slidably connected in sequence. The cavities of the first sleeve 106, the second sleeve 107, and the third sleeve 108 are connected and equipped with a return spring 109. One end of the traction cable 110 is connected to the first sleeve 106. The traction cable 110 is fixed to the elevator speed limiting rope via several guide wheels 123 at its fixed end. The setting of the first locking mechanism helps to make the sliding rail connection of the sliding device 100 more stable and less prone to deviation under normal operating conditions.

[0042] Specifically, the fixing strap 122 and fixing cable 125 are fixed on the elastic clip 126 on the fixing device 124. The fixing strap 122 and fixing cable 125 are elastic, providing a margin of motion for the elevator speed limiting rope to synchronize with the elevator car during operation, thus ensuring the stability of the structure. In this embodiment, the first sleeve 106 is limited and magnetically attracted at the bottom of the cavity of the second sleeve 107, and the second sleeve 107 is limited and magnetically attracted at the bottom of the cavity of the third sleeve 108, so that after contact, the adsorption will not be reset due to the action of the spring.

[0043] Example 2:

[0044] In this embodiment, the aforementioned linkage lock for the elevator door operator is specifically used for the working braking of the elevator speed governor. In terms of safety protection, it specifically relates to an elevator, including a car body and several of the aforementioned linkage locks for the elevator door operator. The linkage locks for the elevator door operator are fixed on the car. A hook ring adapted to the hook arm 102 is provided on the side of the elevator shaft. When the elevator speed governor system is working, the hook arm 102 and the hook ring 131 cooperate. Preferably, the linkage locks for the elevator door operator can be set on the elevator door operator to realize the function of Embodiment 1. At the same time, they can be set on the side of other adapted positions of the car to ensure the stability of the car support.

[0045] The above description is merely illustrative of the invention. Those skilled in the art can make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not depart from the content of this specification or exceed the scope defined by the claims, all of which should fall within the protection scope of this invention.

Claims

1. A linkage lock for an elevator door machine, characterized by: The application relates to a multi-section sliding rail, a first locking mechanism, a second locking mechanism and a third locking mechanism, wherein the multi-section sliding rail is sequentially arranged in a sliding mode, the multi-section sliding rail is provided with the first locking mechanism for locking, the outermost sliding rail is provided with a hook arm, the hook arm is hingedly arranged in an arm groove of the outermost sliding rail and is connected with a torsion spring for resetting, an initial position is arranged in the arm groove, a reset position is 90 DEG away from the initial position, the initial position is locked through the second locking mechanism, the reset position is locked through the third locking mechanism, the door machine comprises a mounting plate and a door machine plate, the door machine plate is mounted on a car, and the mounting plate is fixed at two ends of the outermost sliding rail of the multi-section sliding rail, the door cutter holder is provided with a first connecting shaft and a second connecting shaft, a car door hanging plate is slidingly arranged on the door machine plate, the mounting plate is provided with a transverse first sliding groove, the car door hanging plate is provided with a longitudinal second sliding groove, the first connecting shaft is adapted to slide in the first sliding groove, and the second connecting shaft is adapted to slide in the second sliding groove, when the door cutter is in a door ball position, the car door is opened from the inside through the action of the door cutter, a hook ring matched with the hook arm is arranged on the elevator shaft side, when the elevator speed limiting system works, the hook arm cooperates with the hook ring, the mounting plate is lowered under the action of the multi-section sliding rail unlocking, the door cutter is lowered, the door cutter is in the door ball position, and the second connecting shaft is not separated from the second sliding groove.

2. A linkage lock for an elevator door machine according to claim 1, wherein: The outermost sliding rail of the multi-section sliding rail is connected with a secondary unlocking device, the secondary unlocking device comprises a fixing base, a roller, a pressing wheel, a fixing belt, a guide wheel, a fixer and a fixing cable, the roller, the pressing wheel and the guide wheel are rotationally arranged on the fixing base, the roller and the pressing wheel are oppositely arranged and are adapted to be arranged on the elevator speed limiting rope, the pressing wheel is provided with a protruding part matched with the wheel faces of the guide wheel, the pressing wheel is provided with a torsion spring so that the initial state is separated from the wheel face of the guide wheel, the fixing cable is fixed through the wheel groove of the guide wheel and the fixer, the fixing belt is fixed through the wheel faces of the guide wheel and the fixer, the fixer is fixed with the corresponding elevator speed limiting rope, the fixing base is fixed with the car, the second locking mechanism is in an L shape, one end of the second locking mechanism is fixed with the head end of the secondary sliding rail, the other end of the second locking mechanism is insertedly arranged in the head end of the sliding rail and is adapted to be insertedly arranged in the initial position of the hook arm in a longitudinal sliding mode, the fixing belt is fixed with the outermost sliding rail through a first connecting cable, and the fixing cable is fixed with a traction cable through a second connecting cable.

3. A linkage lock for an elevator door machine according to claim 1, wherein: The multi-section sliding rail comprises a first sliding rail, a second sliding rail and a third sliding rail, the first sliding rail and the second sliding rail are respectively provided with pulley grooves, the second sliding rail and the third sliding rail are provided with rubber pulleys matched with the pulley grooves at the matched positions to form damping sliding.

4. A linkage lock for an elevator door machine according to claim 1, wherein: The adjacent sliding rails of the multi-section sliding rail are adapted to be provided with reverse stopping mechanisms, the reverse stopping direction is upward reverse stopping, the reverse stopping mechanism comprises a reverse stopping hook and reverse stopping teeth, the reverse stopping hook is hingedly arranged on the outer sliding rail, and the reverse stopping teeth are arranged on the adjacent inner sliding rail.

5. A linkage lock for an elevator door machine according to claim 1, wherein: The first locking mechanism unlocking includes a first sleeve, a second sleeve and a third sleeve, the first sleeve, the second sleeve and the third sleeve are sequentially sleeved and slid, the first sleeve, the second sleeve and the third sleeve are in communication and are provided with a reset spring, one end of a traction cable is connected with the first sleeve, the traction cable is fixed with an elevator speed limiting rope through a plurality of guide wheels and at the fixed end.

6. A linkage lock for an elevator door machine according to claim 2, wherein: The fixed band and the fixed cable are fixed on the elastic clamps on the fixator.

7. A linkage lock for an elevator door machine according to claim 2, wherein: The fixed band and the fixed cable are elastic.

8. A linkage lock for an elevator door machine according to claim 2, wherein: The first sleeve is limited at the bottom of the cavity of the second sleeve and is magnetically adsorbed, and the second sleeve is limited at the bottom of the cavity of the third sleeve and is magnetically adsorbed.

9. An elevator characterized by: The linkage lock for the elevator door machine includes a car body and a plurality of claims 1-8.

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