Linkage door lock
By using the support components of the linkage door lock and the design of the follow-up hanging plate, the linkage between the cage door and the elevator door is realized, which solves the problem of frequent manual operation required for traditional construction hoist doors and reduces the labor intensity of the operator.
Patent Information
- Application Number
- CN202421141676.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-23
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-23
AI Technical Summary
Traditional construction hoist doors require frequent manual opening and closing, resulting in high labor intensity for operators.
Design a linkage door lock that enables the automatic opening and closing of cage doors and elevator doors through the linkage of support components and follower mounting plates. Utilize the cooperation of double torsion springs and the top block of the door lock to achieve automatic retraction and release of the door hook.
It reduces the labor intensity of construction hoist operators, realizes the linkage between the hoist door and the outer cage door, and completes the automatic opening and closing of the outer cage door.
Smart Images
Figure CN222293330U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of construction elevator door locks, in particular to a linkage door lock. Background Art
[0002] Doors are an important component of construction elevators and an important way for people and goods to enter and exit the construction elevator. Traditional doors are generally opened and closed manually. Since the construction elevator operators are required to open and close the elevator doors frequently, this causes high labor intensity for the elevator operators. Summary of the invention
[0003] The problem to be solved by the utility model is to provide a linkage door lock, which can realize the linkage opening and closing of the cage door and the elevator door, and reduce the labor intensity of the elevator operator.
[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a linkage door lock, including a support assembly arranged on the cage door and a follow-up hanging plate arranged on the outer cage door and matched with the support assembly, the support assembly includes a door hook and a door lock top block pushing the door hook, the door hook is pivotally connected to the cage door through a rotating shaft; the cage door is provided with a mounting plate, and the mounting plate is provided with a through hole for the door lock top block to be inserted. The use principle of the utility model is: the door hook is in a pop-up state under the action of gravity in a normal state, and when the door hook pops up, it abuts against the follow-up hanging plate of the outer cage door, and at this time, the door lock top block abuts against the door hook; then the lifting and lowering of the outer cage door is controlled by controlling the lifting and lowering of the cage door; when the bottom of the door lock top block touches the elevator bottom plate, the door lock top block is lifted, and the door lock top block pushes the door hook, so that the door hook is retracted, and the door hook stops cooperating with the follow-up hanging plate of the outer cage door.
[0005] As an improvement, the cage door is provided with two symmetrically distributed mounting blocks, each of which is provided with a mounting hole; the rotating shaft is arranged between the two mounting blocks, and both ends of the rotating shaft pass through the two mounting holes respectively; the door hook is arranged between the two mounting blocks.
[0006] As an improvement, a double torsion spring is provided on the rotating shaft to drive the door hook to swing downward. The double torsion spring includes a first spring body, a second spring body and a U-shaped connecting rod connecting the first spring body and the second spring body. The door hook is arranged between the first spring body and the second spring body.
[0007] As an improvement, the free ends of the double torsion springs abut against the mounting plate, and the U-shaped connecting rod is pressed against the back side of the door hook.
[0008] As an improvement, the door lock top block is composed of a push block, a connecting block and a slider from top to bottom, and the push block, connecting block and slider are integrally formed; a push rod is provided on the door hook, and an upper end surface of the push block is provided with an inclined surface, and the inclined surface contacts the push rod; first connecting holes are provided at both ends of the connecting block, and second connecting holes matching the first connecting holes are provided at both ends of the mounting plate, and the bolt passes through the second connecting hole and the first connecting hole in sequence from the bottom of the mounting plate to be connected with the nut, and a spring is provided on the bolt, one end of the spring is against the bolt head, and the other end of the spring is against the bottom of the mounting plate, and the nut is arranged above the connecting block; the slider is inserted into the first through hole.
[0009] The beneficial effects of the utility model are as follows: when the door lock top block is not in contact with the elevator bottom plate, the double torsion spring allows the door hook to remain in an outward pop-up state without external force, at which time the door hook and the outer cage door follower hanging plate are in contact with each other, and the outer cage door will rise and fall together with the cage door; when the door lock top block is in contact with the elevator bottom plate, the screw rod is in contact with the elevator bottom plate, the spring begins to compress at this time, the door lock top block begins to rise, the push rod of the door hook slides on the inclined surface of the push block, and the push block pushes the door hook to retract, so that the door hook loses contact with the outer cage door follower hanging plate. In this way, the cage door and the outer cage door can be lifted and lowered in linkage, and the outer cage door can be opened and closed automatically, which reduces the workload of the elevator operator. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 This is an exploded view of the present invention.
[0011] Figure 2 This is a schematic diagram of the cage structure when the door hook is retracted.
[0012] Figure 3 for Figure 2 Magnified view of area A in .
[0013] Figure 4 A three-dimensional diagram of the utility model with the door hook retracted.
[0014] Figure 5 Schematic diagram of the cage structure when the door hook pops out.
[0015] Figure 6 for Figure 5 Magnified view of area B in .
[0016] Figure 7 It is a three-dimensional diagram of the utility model in a door hook pop-up state.
[0017] Explanation of the numbers in the figure: 1. Cage door; 11. Mounting block; 12. Mounting plate; 2. Door hook; 21. Push rod; 22. Rotating shaft; 23. Double torsion spring; 3. Door lock top block; 31. Push block; 32. Connecting block; 33. Slider; 34. Screw; 341. Spring; 4. Follow-up hanging plate; 5. Elevator bottom plate. Implementation
[0018] The utility model is further described in detail below in conjunction with the accompanying drawings of the specification;
[0019] like Figures 1 to 7 As shown, a linkage door lock comprises a support assembly arranged on a cage door 1 and a follower hanging plate 4 arranged on an outer cage door and matched with the support assembly, the support assembly comprises a door hook 2 and a door lock top block 3 for pushing the door hook 2, the door hook 2 is pivotally connected to the cage door 1 through a rotating shaft 22, the cage door 1 is provided with a mounting plate 12 and two symmetrically distributed mounting blocks 11, the mounting blocks 11 are provided with mounting holes, the rotating shaft 22 is arranged between the two mounting blocks 11, the two ends of the rotating shaft 22 respectively pass through the two mounting holes, the door The hook 2 is arranged between the two mounting blocks 11. The rotating shaft 22 is provided with a double torsion spring 23 and a step cap for driving the door hook 2 to swing downward. The step cap is arranged at both ends of the double torsion spring 23. The double torsion spring 23 includes a first spring body, a second spring body and a U-shaped connecting rod for connecting the first spring body and the second spring body. The door hook 2 is arranged between the first spring body and the second spring body. The free end of the double torsion spring 23 abuts against the mounting plate 12, and the U-shaped connecting rod presses on the back of the door hook 2; thus, the door hook 2 has a tendency to swing downward in a normal state. The mounting plate 12 is provided with a through hole for inserting the door lock top block 3. The door lock top block 3 abuts the door hook 2, so that the door hook 2 can swing downward at most to the position where the follower hanging plate 4 cooperates.
[0020] like Figures 1 to 7As shown, the door lock top block 3 is composed of a push block 31, a connection block 32 and a slider 33 from top to bottom, and the push block 31, the connection block 32 and the slider 33 are integrally formed. An inclined surface is provided on the upper end surface of the push block 31, and a push rod 21 is provided on the door hook 2, and the inclined surface contacts the push rod 21; the inclined surface design can reduce the wear between the door lock top block 3 when pushing the door hook 2, extend the service life of the push rod 21 and the door lock top block 3, and also reduce the mutual force. The connecting block 32 is provided with a first connecting hole at both ends, and the mounting plate 12 is provided with a second connecting hole matching the first connecting hole at both ends. The bolt passes through the second connecting hole and the first connecting hole in sequence from the bottom of the mounting plate 12 and is connected to the nut. The bolt is provided with a spring 341, one end of the spring 341 abuts against the bolt head, and the other end of the spring 341 abuts against the bottom of the mounting plate 12; when the bolt head touches the elevator bottom plate 5, the spring 341 is compressed, and the mounting plate 12 remains stationary, while the door lock top block 3 and the bolt rise. At this time, the pushing block 31 on the door lock top block 3 pushes the pushing rod 21 on the door hook 2, causing the door hook 2 to swing upward and then retract, and the door hook 2 loses contact with the follower hanging plate 4.
[0021] The working principle of the utility model is as follows: when the door lock top block 3 is not in contact with the elevator bottom plate 5, the double torsion spring 23 keeps the door hook 2 in the state of popping out without external force, at which time the door hook 2 contacts the outer cage door follower hanging plate 4, and the outer cage door will rise and fall together with the cage door 1; when the door lock top block 3 contacts the elevator bottom plate 5, the screw 34 also contacts the elevator bottom plate 5, the spring 341 starts to compress at this time, the door lock top block 3 starts to rise, and the push block 31 pushes the door hook 2 to be recovered, so that the door hook 2 loses contact with the outer cage door follower hanging plate 4. In this way, the cage door 1 and the outer cage door can be lifted and lowered in linkage, and the outer cage door can be opened and closed automatically, which reduces the workload of the elevator operator.
Claims
1. A linkage door lock, comprising a support assembly provided on a cage door and a follower hanging plate provided on an outer cage door and cooperating with the support assembly, characterized in that: The support assembly includes a door hook and a door lock top block that pushes the door hook, and the door hook is pivotally connected to the cage door through a rotating shaft; a mounting plate is provided on the cage door, and a through hole is provided on the mounting plate for inserting the door lock top block.
2. A linkage door lock as claimed in claim 1, characterized in that: The cage door is provided with two symmetrically distributed mounting blocks, and the mounting blocks are provided with mounting holes; the rotating shaft is arranged between the two mounting blocks, and the two ends of the rotating shaft pass through the two mounting holes respectively, and the door hook is arranged between the two mounting blocks.
3. A linkage door lock as claimed in claim 1, characterized in that: The rotating shaft is provided with a double torsion spring for driving the door hook to swing downward, the double torsion spring comprises a first spring body, a second spring body and a U-shaped connecting rod connecting the first spring body and the second spring body, and the door hook is arranged between the first spring body and the second spring body.
4. A linkage door lock as claimed in claim 3, characterized in that: The free ends of the double torsion springs are against the mounting plate, and the U-shaped connecting rod is pressed against the back side of the door hook.
5. A linkage door lock as claimed in claim 4, characterized in that: The door lock top block is composed of a push block, a connecting block and a slider from top to bottom, and the push block, the connecting block and the slider are integrally formed; a push rod is provided on the door hook, and an upper end surface of the push block is provided with an inclined surface, and the inclined surface contacts the push rod; first connecting holes are provided at both ends of the connecting block, and second connecting holes matching the first connecting holes are provided at both ends of the mounting plate, and a bolt passes through the second connecting hole and the first connecting hole in sequence from the bottom of the mounting plate to be connected with a nut, a spring is provided on the bolt, one end of the spring is against the bolt head, and the other end of the spring is against the bottom of the mounting plate, and the nut is arranged above the connecting block; the slider is inserted into the through hole.