Emergency unlocking structure of hall door opening and closing device for elevator

Abstract

The utility model relates to elevator field especially elevator hall door side open upper ridge device emergency unlocking structure, a kind of elevator hall door side open upper ridge device emergency unlocking structure, including lock sleeve, triangle lock and lock piece, the recess is in the lock sleeve lower part outer wall, fixed elastic piece is stuck recess and is fixed in door head bottom plate assembly bottom, lock sleeve is equipped with triangle lock, triangle lock upper portion is equipped with mounting block, mounting block is equipped with mounting hole, the mounting hole of lock piece is fixed by mounting hole, lock piece two pieces vertically set, lock piece upper portion is equipped with clamping hole, triangle lock is equipped with insertion hole a, lock sleeve is equipped with insertion hole b, clamping spring one end is clamped in insertion hole a, the other end is clamped in insertion hole b, lock sleeve is fixed in the corresponding hole of door head bottom plate assembly bottom.The utility model has the advantages that: when needing emergency opening, the lock core of triangle lock is operated, so that lock piece rotates, the clamping hole on lock piece is on the limit rod, so as to drive door lock assembly to rotate, ensure that failure or maintenance, operation is timely and convenient.

Description

Technical Field

[0001] This utility model relates to the field of elevators, and in particular to an emergency unlocking structure for an elevator side-opening hall door step device. Background Technology

[0002] The landing door sill device plays a crucial role in elevator operation. It not only seals off the landing entrance and car entrance but also plays a vital role in ensuring passenger safety. As the outer door of the elevator, the landing door uses a mechanical locking device and electrical interlocking system to ensure it is locked when closed, preventing accidental opening during elevator operation that could lead to falls or shearing accidents. The landing door opening and closing is driven by the car door opening knife and is electrically interlocked with the car door. The elevator cannot start if the door is not fully closed. It ensures that the door can be opened when the elevator malfunctions or requires maintenance. Currently, the design is complex and has problems. Summary of the Invention

[0003] To solve the aforementioned technical problems related to complex design, this utility model provides a device for raising the threshold of an elevator side-opening hall door.

[0004] The technical solution of this utility model is as follows: An emergency unlocking structure for an elevator side-opening hall door sill device includes a lock sleeve, a triangular lock, and a lock plate. The lower outer wall of the lock sleeve has a recess, and a fixing spring clip is engaged with the recess and fixed to the bottom of the door head base plate assembly. The lock sleeve contains a triangular lock, and the upper part of the triangular lock has a mounting block with a mounting hole. The mounting hole of the lock plate is fixed through the mounting hole. The two lock plates are arranged vertically, and the upper part of the lock plate has a locking hole. The triangular lock has a insertion hole a, and the lock sleeve has a insertion hole b. One end of the retaining spring clip is engaged with insertion hole a, and the other end is engaged with insertion hole b. The lock sleeve is fixed to the corresponding hole at the bottom of the door head base plate assembly.

[0005] The card hole and the limiting rod cooperate, and the limiting rod is locked in the movable slot of the active hanging plate assembly. The limiting rod and the limiting block are provided on the inner side of the limiting rod and the door lock assembly is provided on the lower part.

[0006] The surface of the lock sleeve is provided with a raised ring, the raised ring has a recess, and the outer side of the insertion hole b is provided with a groove.

[0007] The jack a is located on the upper outer wall of the triangular lock, with one end of the retaining spring passing through it.

[0008] The technical solution of this utility model has a novel structure and a clever and simple design. When an emergency opening is required, the lock cylinder of the triangular lock is operated to make the lock plate rotate. The locking hole on the lock plate hits the limit rod, thereby driving the door lock assembly to rotate, ensuring timely and convenient operation in case of failure or maintenance. Attached Figure Description

[0009] Figure 1 , 2This is a schematic diagram of the structure of this utility model; Figure 3 This is a structural schematic diagram of the utility model in use; Figure 4 , 5 6, 7, 8, and 9 are schematic diagrams of the structure of an embodiment of this utility model; Figure 10 This is a structural diagram of the hook assembly; Figure 11 This is a schematic diagram of the guide rail structure; Figure 12 This is a structural diagram of the mounting plate; Figure 13 This is a schematic diagram of the switch assembly. Figure 14 This is a structural diagram of the roller assembly; Figure 15 This is a structural schematic diagram of the active mounting plate assembly; Figure 16 This is a structural diagram of a door lock assembly. Detailed Implementation

[0010] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example

[0011] like Figure 1 , 2 An emergency unlocking structure for an elevator side-opening hall door sill device, as shown in Figure 3, includes a lock sleeve 20, a triangular lock 21, and a lock plate 22. The lower outer wall of the lock sleeve 20 has a recess, and a fixing spring 24 is engaged with the recess and fixed to the bottom of the door head base plate assembly 1. The lock sleeve 20 contains a triangular lock 21, and the upper part of the triangular lock 21 has an mounting block with a mounting hole. The mounting hole of the lock plate 22 is fixed through the mounting hole. The two lock plates 22 are arranged vertically, and the upper part of the lock plate 22 has a locking hole. The triangular lock 21 has an insertion hole a, and the lock sleeve 20 has an insertion hole b. One end of the retaining spring 23 is engaged with the insertion hole a, and the other end is engaged with the insertion hole b. The lock sleeve 20 is fixed to the corresponding hole at the bottom of the door head base plate assembly 1.

[0012] The card hole and the limiting rod cooperate, and the limiting rod is locked in the movable slot of the active hanging plate assembly 4. The limiting rod and the limiting block 15 are provided on the inner side, and the door lock assembly 5 is provided with the limiting block 15 at the lower part.

[0013] The locking sleeve 20 has a raised ring on its surface with a recess, and a groove on the outer side of the insertion hole b. The raised ring provides a position for the retaining spring 23 to be fitted, making the structure more compact.

[0014] The insertion hole a is located on the upper outer wall of the triangular lock 21, with one end of the retaining spring 23 passing through it, making it secure and not easy to detach.

[0015] like Figure 4 、 5As shown in figures 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, and 16, this device is used in conjunction with the door header base plate assembly 1, the driven hanging plate assembly 3, the active hanging plate assembly 4, the door lock assembly 5, the linkage wire rope assembly 7, and the emergency unlocking assembly 8. The door header base plate assembly 1 includes a top plate and a back plate. The top plate is horizontally positioned at the top of the back plate. Mounting brackets 16 are provided on both sides of the back plate, and a guide rail 2 is provided between the mounting brackets 16. A switch assembly 6 is located at the bottom left side of the top plate, and a switch box is located at the bottom of the switch assembly 6. The emergency unlocking assembly 8 is fixed to the corresponding hole at the bottom of the door header base plate assembly 1. The driven hanging plate assembly 3... The roller assembly slides into the inner groove of the guide rail 2. The wire rope of the linkage wire rope assembly 7 is wound around both ends of the rope wheel of the driven hanging plate assembly 3. The wire rope fixing bracket 11 is set at the bottom of the middle top plate. The wire rope fixing bracket 11 is fixed to the rope ends of the linkage wire rope assembly 7 by fasteners. The fixing shaft 12 on the linkage wire rope assembly 7 is fixed to the active hanging plate assembly 4 by nuts. The upper part of the door lock assembly 5 is rotatably mounted on the active hanging plate assembly 4. The roller assembly on the active hanging plate assembly 4 slides into the inner groove of the guide rail 2. The two ends of the counterweight spring 9 are respectively hooked onto the hook and hook assembly 10 of the driven hanging plate assembly 3. The hook assembly 10 is located at the top and bottom of the left side, and the hook is located at the upper right side of the driven mounting plate assembly 3. The switch assembly 6 has a bayonet on its right side, and the active mounting plate assembly 4 has a contact element on its left side. The guide rail 2 is fixed to both ends of the door head base plate assembly 1 by bolts. The middle part of the mounting bracket has a trapezoidal cross-section. The switch assembly 6 is fixed to the door head base plate assembly 1 by bolts and nuts. The wire rope fixing bracket 11 is riveted to the door head base plate assembly 1 by rivets. The upper left side of the door lock assembly 5 forms a barb 14, and a limiting groove 13 is provided below the barb 14. A limiting shaft is provided in the limiting groove 13, and the limiting shaft is fixed to the active mounting plate. On component 4, a ball bearing a is provided on the outer side of the limiting shaft; a limiting block 15 is provided at the lower part of the door lock component 5; a limiting rod is provided on the inner side of the limiting block 15; the limiting rod is engaged in the movable slot of the active mounting plate component 4; a ball bearing b is provided on the upper right side of the door lock component 5; a contact switch is provided at the lower part of the barb 14; an inclined plate is provided on the top of the driven mounting plate component 3; a hook is provided on the inclined plate; an installation plate 19 is provided in the upper middle part of the active mounting plate component 4; the installation plate 19 is smaller at the top and larger at the bottom, with a trapezoidal shape at the top and a rectangular shape at the bottom; the door lock component 5 is rotatably mounted on the upper part of the installation plate 19; notches are provided on the upper sides of the trapezoidal part; a wear-resistant block is provided on the left notch. The wire rope fixing bracket 11 is fixed to the top plate in the middle, and the two sides of the wire rope fixing bracket 11 are vertically arranged downwards. The wire rope fixing bracket 11 is equipped with fixing parts. The switch assembly 6 protrudes downwards in the middle, and the two sides of the switch assembly 6 are fixed to the top plate. The switch assembly 6 is provided with a bayonet in the middle, and a limiting outer wall is formed on the right side of the middle of the switch assembly 6. The limiting outer wall contacts the wear-resistant block. The hall door sill device is fixed in the elevator shaft by connecting brackets, expansion bolts, etc. When someone in the elevator car presses the button for the corresponding floor, the elevator car will reach the corresponding floor.After the elevator car stops, the door knife arm opens, clamping the two ball bearings on the door lock assembly 5. The moving ball bearings on the door lock assembly 5 then rotate the lock hook downwards, disconnecting the plug assembly on the lock hook from the switch assembly 6 mounted on the door head base plate assembly 1. The motor on the elevator door operator rotates, driving the door knife via a belt, which in turn causes the active mounting plate assembly 4 to slide on the guide rail 2. The linkage steel wire rope assembly 7, fixed to the active mounting plate assembly 4, moves along with it, and finally the driven mounting plate assembly 3 moves with the active mounting plate assembly 4 to the same end. When it reaches the limit position on the rightmost door head base plate assembly 1 and stops, the elevator door is fully open, and the counterweight spring is firmly pulled open, allowing people inside and outside the elevator car to enter and exit freely. When someone inside the car presses the close button or no one outside presses the call button within a certain time, the motor drives the elevator door knife to close, the force acting on the ball bearings of the door lock assembly 5 disappears, and the lock hook on the door lock assembly 5 returns to a horizontal position under its own weight. Simultaneously, the counterweight springs 9, fixed to the hooks of the driven mounting plate assembly 3 and the hook assembly 10 respectively, automatically tighten, thereby driving the driven mounting plate assembly 3 to move to the left. The active mounting plate assembly 4 moves along with it under the action of the linkage wire rope assembly 7. When the contact assembly on the door lock assembly 5 inserts into the switch assembly, the limiting device on the base plate assembly stops. The driven mounting plate assembly 3 and the active mounting plate assembly 4 stop moving. At the same time, the plug assembly on the door lock assembly 5 is also fully in contact with the auxiliary contact assembly, and the circuit is fully connected. After receiving the command, the elevator car moves up and down. When the elevator malfunctions and the door cannot be opened normally or needs maintenance, the emergency unlocking assembly 7 can be turned by using a triangular key. The unlocking rod on the emergency unlocking assembly 7, that is, the lock plate 22, moves the limiting rod through the locking hole, pushing the bolt of the door lock assembly 5, thereby lifting the lock hook downward. The outer wall of the lock hook is arc-shaped, so it smoothly engages with the locking slot. When the lock hook is lifted downward, the elevator doors on both sides can be opened by gently pulling them with your hands from the outside of the car. It should be understood that the above description is only a preferred embodiment of the present utility model and is not sufficient to limit the technical solution of the present utility model. For those skilled in the art, within the spirit and principles of the present utility model, additions, subtractions, substitutions, transformations or improvements can be made based on the above description, and all such additions, subtractions, substitutions or improvements should fall within the protection scope of the appended claims of the present utility model.

Claims

1. An emergency unlocking structure for an elevator side-opening hall door sill device, comprising a lock sleeve (20), a triangular lock (21), and a lock plate (22), characterized in that: The lower outer wall of the lock sleeve (20) has a recess. The fixing spring (24) is stuck in the recess and fixed to the bottom of the door head base plate assembly (1). The lock sleeve (20) is provided with a triangular lock (21). The upper part of the triangular lock (21) is provided with an installation block. The installation block is provided with an installation hole. The installation hole of the lock plate (22) is fixed through the installation hole. The two lock plates (22) are set vertically. The upper part of the lock plate (22) is provided with a locking hole. The triangular lock (21) is provided with a insertion hole a. The lock sleeve (20) is provided with a insertion hole b. One end of the snap ring (23) is stuck in the insertion hole a, and the other end is stuck in the insertion hole b. The lock sleeve (20) is fixed to the corresponding hole at the bottom of the door head base plate assembly (1).

2. The emergency unlocking structure for the elevator side-opening hall door sill device according to claim 1, characterized in that: The card hole and the limiting rod cooperate, and the limiting rod is locked in the movable slot of the active hanging plate assembly (4). The limiting rod and the limiting block (15) are provided on the inner side, and the door lock assembly (5) is provided with the limiting block (15) at the bottom.

3. The emergency unlocking structure for the elevator side-opening hall door sill device according to claim 1, characterized in that: The surface of the lock sleeve (20) is provided with a convex ring, the convex ring has a recess, and the outer side of the insertion hole b is provided with a groove.

4. The emergency unlocking structure for the elevator side-opening hall door sill device according to claim 1, characterized in that: The jack a is located on the upper outer wall of the triangular lock (21), with one end of the retaining ring (23) passing through it.

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