Elevator door lock structure
By designing an elevator door lock structure including door knife assembly, door lock plate and door lock hook plate, the problem of poor versatility of elevators adapted to the upper and lower door opening in the prior art is solved, and the functions of automatic unlocking and self-locking are realized, which are suitable for elevators that open up and lower doors and left and right doors.
Patent Information
- Application Number
- CN202421418546.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-06-20
AI Technical Summary
In the prior art, the door lock structures that are suitable for door openings are poor in versatility and are difficult to apply to elevators that open up and down.
An elevator door lock structure is designed, including a door knife assembly installed on the elevator car, a door lock plate movable on the hall door, and a door lock hook plate movable on the hall door door ridge assembly. The door knife assembly drives the door lock hook plate action to achieve automatic unlocking, or it can also be driven by pushing the door lock plate or manually unlocking, combined with a reset structure or self-repellent relay to achieve self-locking.
It realizes an elevator suitable for upper and lower doors and left and right doors, ensuring safe and self-locking of the car and hall doors, and at the same time, it is simple in structure and has good versatility.
Smart Images
Figure CN222612672U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of elevator equipment, in particular to an elevator door lock structure. Background Art
[0002] At present, the conventional elevator door opening method is to open the door to the left or right. However, in order to adapt to the shaft size and different scenarios, some elevator doors need to be designed to open upward, such as car elevators. When the elevator door opens upward, the conventional door knife for opening the door to the left or right is no longer applicable. Therefore, it is of great significance to design a universal door knife door lock structure that can realize upward door opening and can be applicable to left or right door opening. At the same time, it must meet relevant industry specifications to achieve a door knife door lock structure that can be self-locked without unlocking, and can be unlocked by door knife drive or manually unlocked. Utility Model Content
[0003] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide an elevator door lock structure to solve the problem that the door lock structure suitable for left and right doors in the prior art has poor versatility and is difficult to be applied to elevators with up and down doors.
[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows: an elevator door lock structure, comprising a door knife assembly installed on the elevator car, a door lock plate movable on the hall door, and a door lock hook plate movable on the hall door threshold assembly, wherein the hall door is connected to the hall door threshold assembly in a sliding manner;
[0005] A first locking structure is provided on the door lock plate, a second locking structure matched with the first locking structure is provided on the door lock hook plate, and a first impact block assembly matched with the door knife assembly is also provided on the door lock hook plate; when the hall door is closed, the second locking structure cooperates with the first locking structure to limit the movement of the door lock plate along the opening direction of the hall door. When the hall door needs to be opened, the door lock plate is pushed to move, or the door knife assembly pushes the first impact block assembly to drive the door lock hook plate to move, or the door lock plate is pushed to drive the door lock hook plate to move, so that the second locking structure is disengaged from the first locking structure.
[0006] As an optimization, the door knife assembly includes a driving mechanism installed on the car and a bow assembly cooperating with the first impact block assembly, the bow assembly is connected to the driving mechanism, and when the car is opposite to the hall door, it can approach or move away from the first impact block assembly under the action of the driving mechanism, and the bow assembly can contact the first impact block assembly and push the first impact block assembly to drive the door lock hook plate to move.
[0007] As an optimization, the driving mechanism includes a base installed on the car and a vertically arranged mounting frame, and the impact bow assembly is installed on the mounting frame; both ends of the mounting frame are connected to the base through first connecting arms, wherein both ends of the first connecting arm are hinged to the base and the mounting frame respectively; an electromagnetic hydraulic cylinder is installed on the base, and the electromagnetic hydraulic cylinder is located between the two first connecting arms, and a connecting rod is installed on the end of its piston rod, one end of the connecting rod is hinged to the piston rod, and the other end is hinged to the middle part of the first connecting arm close to the piston rod, and when the piston rod is extended or retracted, the mounting frame and the impact bow assembly can be driven close to or away from the base through the connecting rod.
[0008] As an optimization, the cross-section of the door lock plate is U-shaped, and its length direction is arranged along the opening direction of the hall door. One of its support plates is rotatably connected to the hall door so that it can rotate in a vertical plane or horizontal plane perpendicular to the hall door. The first locking structure includes a limiting groove opened on the other support plate; the door lock hook plate is rotatably installed on the hall door threshold assembly so that it can rotate in a vertical plane parallel to the hall door. The second locking structure includes a limiting head that is arranged on the side of the door lock hook plate facing the limiting groove and cooperates with the limiting groove. When the hall door is closed, the limiting head extends into the limiting groove, and the limiting head contacts the groove wall of the limiting groove to limit the movement of the door lock plate along the opening direction of the hall door. When the door lock hook plate rotates or moves horizontally, the limiting head can exit the limiting groove.
[0009] As an optimization, the first impact block assembly includes a door wheel installed on the door lock hook plate, whose rotating axis is perpendicular to the door lock hook plate and deviates from the rotating axis of the door lock hook plate, and its wheel surface can contact the impact bow assembly, so that it can drive the door lock hook plate to rotate.
[0010] As an optimization, a second impact block assembly is provided on the door lock plate or the hall door, and the second impact block assembly includes a folding plate formed by bending a steel plate, which has a pushing inclined surface opposite to the limiting head of the door lock hook plate through a limiting groove, and when the door lock plate is pushed to rotate in a vertical plane or a horizontal plane perpendicular to the hall door, the pushing inclined surface can contact the limiting head and push the limiting head out of the limiting groove.
[0011] As an optimization, a touch plate extends on the door lock plate toward the hall door, and correspondingly, a lock hole is provided on the hall door, and the touch plate is opposite to the lock hole, through which the touch plate can be pushed to drive the door lock plate to rotate.
[0012] As an optimization, a contact switch is also installed on the hall door threshold assembly. The contact switch is connected in series in the elevator's operating circuit. When the hall door is closed, the door lock hook plate contacts the contact switch to connect the elevator's operating circuit. When the door lock hook plate moves, it breaks away from the contact switch to disconnect the elevator's operating circuit.
[0013] Compared with the prior art, the utility model has the following advantages: through the mutual cooperation between the door knife assembly installed on the elevator car, the door lock plate movable on the hall door, and the door lock hook plate movably installed on the hall door threshold assembly, the utility model can be applicable to elevators with doors opening up and down and elevators with doors opening left and right, and can be specifically driven by the door knife assembly to drive the door lock hook plate to move to achieve automatic unlocking, or can be manually unlocked by pushing the door lock plate or by the door lock plate driving the door lock hook plate to move, so that the car door can drive the hall door to open, and the door lock hook plate can achieve self-locking through the reset structure or self-resetting, with a simple structure and good versatility. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural schematic diagram of the utility model;
[0015] Figure 2 This is a schematic diagram of the cooperation between the door lock plate and the door lock hook plate in the utility model;
[0016] Figure 3 This is a schematic diagram of manual unlocking in the present utility model;
[0017] Figure 4 This is a schematic diagram of the installation of the utility model;
[0018] In the figure: 1 door lock plate, 2 door lock hook plate, 3 striker assembly, 4 base, 5 mounting frame, 6 first connecting arm, 7 electromagnetic hydraulic cylinder, 8 connecting rod, 9 limit groove, 10 limit head, 11 door wheel, 12 folding plate, 13 push ramp, 14 touch plate, 15 contact switch. DETAILED DESCRIPTION
[0019] The utility model will be further described below in conjunction with the accompanying drawings and embodiments.
[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0021] It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In the description of the utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invention product is usually placed when used, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In addition, the terms "horizontal", "vertical", etc. do not mean that the components are absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted. In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0022] Example: See Figure 1-Figure 4 , an elevator door lock structure, including a door knife assembly installed on the elevator car, a door lock plate 1 movable on the hall door, and a door lock hook plate 2 movable on the hall door threshold assembly, wherein the hall door is connected to the hall door threshold assembly by sliding cooperation. Specifically, since the present application is mainly aimed at elevators with doors opening up and down, and is also applicable to elevators with doors opening left and right, the present embodiment is described in detail with respect to elevators with doors opening up and down, and adaptive adjustments can be made for elevators with doors opening left and right, and no further elaboration is given. In the present embodiment, the hall door opens upward, and the hall door threshold assembly is arranged on both sides of the hall door opening, and is provided with components such as slide rails and motors that slide with the hall door, and the door knife assembly is installed on the outer wall of the elevator car.
[0023] A first locking structure is provided on the door lock plate 1, a second locking structure matched with the first locking structure is provided on the door lock hook plate 2, and a first collision block assembly matched with the door knife assembly is also provided on the door lock hook plate 2; when the hall door is closed, the second locking structure cooperates with the first locking structure to limit the movement of the door lock plate 1 along the opening direction of the hall door. When the hall door needs to be opened, the door lock plate 1 is pushed to move, or the door knife assembly pushes the first collision block assembly to drive the door lock hook plate 2 to move, or the door lock plate 1 is pushed to drive the door lock hook plate 2 to move, so that the second locking structure is disengaged from the first locking structure.
[0024] Specifically, the cross-section of the door lock plate 1 is U-shaped, and its length direction is arranged along the opening direction of the hall door. One of its support plates is rotatably connected to the hall door so that it can rotate in a vertical plane or horizontal plane perpendicular to the hall door. The first locking structure includes a limiting groove 9 opened on the other support plate; the door lock hook plate 2 is rotatably installed on the hall door threshold assembly so that it can rotate in a vertical plane parallel to the hall door. The second locking structure includes a limiting head 10 that is arranged on the side of the door lock hook plate 2 facing the limiting groove 9 and cooperates with the limiting groove 9. When the hall door is closed, the limiting head 10 extends into the limiting groove 9, and the limiting head 10 contacts the groove wall of the limiting groove 9 to limit the movement of the door lock plate 1 along the opening direction of the hall door. When the door lock hook plate 2 rotates or moves horizontally, the limiting head 10 can exit the limiting groove 9. The limit groove 9 is a rectangular notch, and the limit head 10 is a step structure matching the limit groove 9 formed by extending from one side of the door lock hook plate 2 close to the door lock plate 1. A part of the limit head 10 can extend into the limit groove 9, and there is a certain distance between its edge and the groove wall of the limit groove 9, so that the limit head 10 can withdraw from the limit groove 9 when rotating or translating, and the other part of the step structure can fit with the door lock plate 1 to play a certain limiting role. Specifically, the door lock hook plate 2 can be reset by a reset spring. Whether it adopts a rotating structure or a sliding translation structure, a reset spring structure can be adopted. For the rotating structure, a structure relying on self-weight can be adopted for reset. The reset structure belongs to a mature existing technology, and its specific setting method will not be repeated.
[0025] The door knife assembly includes a driving mechanism installed on the car and a striker assembly 3 matched with the first striker assembly, the striker assembly 3 is connected to the driving mechanism, and when the car is opposite to the hall door, it can approach or move away from the first striker assembly under the action of the driving mechanism, and the striker assembly 3 can contact the first striker assembly and push the first striker assembly to drive the door lock hook plate 2 to move. Among them, the striker assembly 3 includes a striker, and the specific structure of the striker is a conventional structure and will not be described in detail.
[0026] The driving mechanism includes a base 4 installed on the car and a vertically arranged mounting frame 5, and the striking bow assembly 3 is installed on the mounting frame 5; both ends of the mounting frame 5 are connected to the base 4 through first connecting arms 6, wherein both ends of the first connecting arm 6 are hinged to the base 4 and the mounting frame 5 respectively; an electromagnetic hydraulic cylinder 7 is installed on the base 4, and the electromagnetic hydraulic cylinder 7 is located between the two first connecting arms 6, and a connecting rod 8 is installed at the end of its piston rod, one end of the connecting rod 8 is hinged to the piston rod, and the other end is hinged to the middle part of the first connecting arm 6 close to the piston rod. When the piston rod is extended or retracted, the mounting frame 5 and the striking bow assembly 3 can be driven to approach or move away from the base 4 through the connecting rod 8.
[0027] In this embodiment, the first impact block assembly includes a door wheel 11 installed on the door lock hook plate 2, whose rotating axis is perpendicular to the door lock hook plate 2 and deviates from the rotating axis of the door lock hook plate 2, and its wheel surface can contact with the impact bow assembly 3, so that it can drive the door lock hook plate 2 to rotate.
[0028] During use, when the elevator car runs to the level floor, the striker assembly 3 is opposite to the door wheel 11, and then after the elevator control system receives the door opening command, it starts the piston rod of the electromagnetic hydraulic cylinder 7 to extend, so that the striker assembly 3 is close to the door wheel 11 and further pushes the door wheel 11 to move. Driven by the door wheel 11, the door lock hook plate 2 rotates a certain angle to make the limit head 10 exit the limit groove 9, thereby releasing the movement restriction of the hall door. At this time, the car door drives the hall door to open. When the hall door is closed, the piston rod of the electromagnetic hydraulic cylinder 7 contracts, the striker assembly 3 is away from the door wheel 11, and the door lock hook plate 2 is reset under the action of the reset structure or its own weight, and the limit head 10 enters the limit groove 9, thereby limiting the opening of the hall door to achieve self-locking.
[0029] In order to realize manual unlocking in emergency or maintenance situations, the second collision block assembly is provided on the door lock plate 1 or the hall door in this embodiment. The second collision block assembly includes a folding plate 12 formed by bending a steel plate, which has a push inclined surface 13 opposite to the limit head 10 of the door lock hook plate 2 through the limit groove 9. When the door lock plate 1 is pushed to rotate in a vertical plane or a horizontal plane perpendicular to the hall door, the push inclined surface 13 can contact the limit head 10 and push the limit head 10 out of the limit groove 9. A touch plate 14 extending toward the hall door on the door lock plate 1 corresponds to a lock hole provided on the hall door. The touch plate 14 is directly opposite to the lock hole. By extending a rod-shaped tool into the lock hole, the touch plate 14 can be pushed to drive the door lock plate 1 to rotate, so that the push inclined surface 13 continuously pushes the limit head 10, thereby pushing the limit head 10 out of the limit groove 9, releasing the movement restriction of the hall door, and realizing manual unlocking.
[0030] In order to ensure the safety of the elevator when opening the hall door, a contact switch 15 is also installed on the hall door threshold assembly. The contact switch 15 is connected in series to the elevator's operating circuit. When the hall door is closed, the door lock hook plate 2 contacts the contact switch 15 to connect the elevator's operating circuit. When the door lock hook plate 2 moves, it breaks away from the contact with the contact switch 15 to disconnect the elevator's operating circuit.
[0031] Specifically, when the utility model is used,
[0032] For state 1: the elevator rear hall door opens automatically when the elevator is leveled
[0033] When the elevator is in this state, the electromagnetic hydraulic cylinder receives an electric signal after leveling, and the piston rod of the electromagnetic hydraulic cylinder instantly extends. The connecting rod mechanism formed by the connecting rod and the first connecting arm causes the striker assembly to open immediately. The distance between the striker assembly and the base begins to increase, and it touches the door wheel on the door lock hook plate. The door wheel drives the door lock hook plate to start rotating, and at the same time, the contact switch behind it is disconnected to ensure that the elevator is no longer running. After the door lock hook plate rotates away, the limit head no longer has a vertical projection with the limit groove of the door lock plate, and the hall door can be opened upward smoothly. When the hall door is closed and the elevator is about to run, the striker assembly shrinks, the door lock hook plate randomly rotates back and projects with the door lock plate, and the hall door can no longer be opened upward. At the same time, the contact switch behind it contacts, and the safety circuit of the entire elevator operation is connected, and the elevator can run safely. At this time, the hall door cannot be opened, ensuring the safety of the entire elevator, and realizing the functions of self-locking and automatic unlocking.
[0034] For status 2: Manual door opening is required for maintenance
[0035] When the elevator needs to manually open the hall door to enter the shaft, use a special key (a long rod) to pass through the hall door lock hole, and then it can hit the touch plate on the door lock plate, which drives the door lock plate to start rotating. At this time, the second collision block assembly formed by the folding plate touches the door lock hook plate, and its push slope contacts the limit head of the door lock hook plate, and pushes the door lock hook plate until the limit head exits the limit groove. In this way, there is no projection between the door lock hook plate and the door lock plate, and the hall door can be manually opened upwards. At the same time, the contact switch behind the door lock hook plate is also disconnected to ensure the safety of the elevator. When recovering, the door lock hook plate rotates back to achieve self-locking.
[0036] The utility model can be applied to elevators with doors opening up and down and left and right through the cooperation between a door knife assembly installed on the elevator car, a door lock plate movable on the hall door, and a door lock hook plate movably installed on the threshold assembly of the hall door. Specifically, automatic unlocking can be achieved by driving the door lock hook plate through the door knife assembly, and manual unlocking can also be achieved by pushing the door lock plate or by driving the door lock hook plate through the door lock plate, so that the car door can drive the hall door to open, and the door lock hook plate can be self-locking through a reset structure or self-resetting, and the structure is simple and the versatility is good.
[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit the technical solution. Ordinary technicians in this field should understand that those modifications or equivalent replacements of the technical solution of the utility model without departing from the purpose and scope of the technical solution of the utility model should be included in the scope of the claims of the utility model.
Claims
1. An elevator door lock structure, characterized in that : It includes a door knife assembly installed on the elevator car, a door lock plate movably installed on the hall door, and a door lock hook plate movably installed on the hall door threshold assembly, wherein the hall door is connected to the hall door threshold assembly in a sliding manner; A first locking structure is provided on the door lock plate, a second locking structure matched with the first locking structure is provided on the door lock hook plate, and a first impact block assembly matched with the door knife assembly is also provided on the door lock hook plate; when the hall door is closed, the second locking structure cooperates with the first locking structure to limit the movement of the door lock plate along the opening direction of the hall door. When the hall door needs to be opened, the door lock plate is pushed to move, or the door knife assembly pushes the first impact block assembly to drive the door lock hook plate to move, or the door lock plate is pushed to drive the door lock hook plate to move, so that the second locking structure can be disengaged from the first locking structure.
2. An elevator door lock structure according to claim 1, characterized in that: The door knife assembly includes a driving mechanism installed on the car and a striker bow assembly matched with the first striker block assembly. The striker bow assembly is connected to the driving mechanism and can approach or move away from the first striker block assembly under the action of the driving mechanism when the car is opposite to the hall door, and the striker bow assembly can contact the first striker block assembly and push the first striker block assembly to drive the door lock hook plate to move.
3. An elevator door lock structure according to claim 2, characterized in that: The driving mechanism includes a base installed on the car and a vertically arranged mounting frame, and the striking bow assembly is installed on the mounting frame; both ends of the mounting frame are connected to the base through first connecting arms, wherein both ends of the first connecting arm are hinged to the base and the mounting frame respectively; an electromagnetic hydraulic cylinder is installed on the base, and the electromagnetic hydraulic cylinder is located between the two first connecting arms, and a connecting rod is installed on the end of its piston rod, one end of the connecting rod is hinged to the piston rod, and the other end is hinged to the middle part of the first connecting arm close to the piston rod, and when the piston rod is extended or retracted, the mounting frame and the striking bow assembly can be driven close to or away from the base through the connecting rod.
4. An elevator door lock structure according to claim 2, characterized in that: The cross-section of the door lock plate is U-shaped, and its length direction is arranged along the opening direction of the hall door. One branch plate is rotatably connected to the hall door so that it can rotate in a vertical plane or a horizontal plane perpendicular to the hall door. The first locking structure includes a limiting groove provided on the other branch plate; the door lock hook plate is rotatably installed on the hall door threshold assembly so that it can rotate in a vertical plane parallel to the hall door. The second locking structure includes a limiting head that is arranged on a side of the door lock hook plate facing the limiting groove and cooperates with the limiting groove. When the hall door is closed, the limiting head extends into the limiting groove, and the limiting head contacts the groove wall of the limiting groove to limit the movement of the door lock plate along the opening direction of the hall door. When the door lock hook plate rotates or moves horizontally, the limiting head can withdraw from the limiting groove.
5. An elevator door lock structure according to claim 4, characterized in that: The first impact block assembly includes a door wheel installed on the door lock hook plate, whose rotating shaft is perpendicular to the door lock hook plate and deviates from the rotating shaft of the door lock hook plate, and its wheel surface can contact the impact bow assembly, so that it can drive the door lock hook plate to rotate.
6. An elevator door lock structure according to claim 4, characterized in that: A second impact block assembly is provided on the door lock plate or the hall door, and the second impact block assembly includes a folding plate formed by bending a steel plate, which has a pushing inclined surface opposite to the limiting head of the door lock hook plate through a limiting groove. When the door lock plate is pushed to rotate in a vertical plane or a horizontal plane perpendicular to the hall door, the pushing inclined surface can contact the limiting head and push the limiting head out of the limiting groove.
7. An elevator door lock structure according to claim 6, characterized in that: A touch plate extends on the door lock plate toward the hall door, and correspondingly, a lock hole is provided on the hall door, and the touch plate is directly opposite to the lock hole, and the touch plate can be pushed through the lock hole to drive the door lock plate to rotate.
8. An elevator door lock structure according to claim 1, characterized in that: A contact switch is also installed on the hall door threshold assembly. The contact switch is connected in series to the elevator's operating circuit. When the hall door is closed, the door lock hook plate contacts the contact switch to connect the elevator's operating circuit. When the door lock hook plate moves, it breaks away from the contact switch to disconnect the elevator's operating circuit.