Pressure sensing anti-pinch device
By setting up pressure perception devices on the side of the elevator car door, the mechanical structure of the press and limited board is used to solve the problem of holding passengers or objects when the elevator sedan door is closed, and the safety and convenience of the elevator are improved. Essence
Patent Information
- Application Number
- CN202421280684.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-06-05
AI Technical Summary
The existing elevator system is difficult to effectively detect and avoid clamping passengers or objects when the door is closed. In particular, infrared sensors cannot fully detect the side of the door, and the sensitivity decreases after a long time of use.
A pressure -sensitive anti -clip device is designed, including the grooves, the first and second installation boards, the press plate and the limit plate on the side of the elevator sedan door. When pressing the board, the limit plate of the guide rod and connecting rod component mechanism is driven to the elevator sedan door on the other side to ensure that there is a certain gap between the sedan door to avoid clamping.
Effectively avoid the holding of passengers or objects when the elevator door is closed, improves the safety of the elevator, and ensures that there is always sufficient gap between the sedan door to pass the passenger or object safety.
Smart Images
Figure CN222410639U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of elevators, in particular to a pressure sensing anti-pinch device. Background Art
[0002] Vertical lifts are the most widely used type of elevators. When the elevator car door is closed, it is sometimes easy to clamp passengers or objects, causing damage to the passengers or objects, or causing the car door to clamp objects to go up and down floors, which is extremely detrimental to the safety of riding.
[0003] At present, infrared sensors are usually used to detect whether there are passengers or objects blocking the car door, and then feedback is sent to the car door to prevent pinching. However, infrared sensors cannot detect all positions on the side of the car door, and the sensitivity of infrared sensors will decrease after being used for a long time, resulting in the problem that the car door cannot respond in time and pinches passengers or objects. Utility Model Content
[0004] The utility model aims to provide a pressure sensing anti-pinch device which can improve the safety of an elevator car door when it is closed and avoid accidental pinching of passengers or objects.
[0005] In order to solve the above technical problems, the utility model provides a pressure-sensing anti-pinch device, including a groove opened on the side of one of the elevator car doors, a first mounting plate and a second mounting plate installed in the groove, a pressing plate is provided on one side of the first mounting plate, and a limiting plate is provided on one side of the second mounting plate. When the pressing plate is pressed, the limiting plate presses against the other elevator car door.
[0006] Furthermore, at least two guide rods are arranged between the first mounting plate and the second mounting plate, a first connecting rod assembly is arranged between the guide rod and the pressing plate, and a second connecting rod assembly is arranged between the guide rod and the limiting plate. The first connecting rod assembly and the second connecting rod assembly have the same structure and are arranged opposite to each other, and when the first connecting rod assembly is in a compressed state, the second connecting rod assembly is in a protruding state.
[0007] Furthermore, the first connecting rod assembly includes a fixed block for connecting the end of the guide rod and the first mounting plate, and a movable block sleeved on the guide rod. The fixed block is connected to the pressing plate through the first connecting rod, and the movable block is connected to the pressing plate through the second connecting rod. An elastic member is connected between the fixed block and the movable block, and the first connecting rod and the fixed block, as well as the second connecting rod and the movable block, are hingedly connected.
[0008] Furthermore, the first connecting rod and the second connecting rod are rotationally matched via a rotating shaft, and the pressing plate is connected to one side of the rotating shaft.
[0009] Furthermore, a guide sleeve is connected between the moving block in the first connecting rod assembly and the moving block in the second connecting rod assembly, and the guide sleeve is sleeved on the outer circumference of the guide rod, so that the moving block in the first connecting rod assembly can drive the moving block in the second connecting rod assembly to move along the guide rod.
[0010] Furthermore, a pressure sensor is provided on one side of the first mounting plate close to the pressing plate.
[0011] Furthermore, a protection pad is provided on one side of the pressing plate away from the first mounting plate.
[0012] Furthermore, mounting holes are provided on the first mounting plate and the second mounting plate.
[0013] Furthermore, an avoidance groove is provided on the other elevator car door, and the pressing plate matches the avoidance groove.
[0014] The beneficial effect of the utility model is that when passengers or objects are clamped by the elevator car doors on both sides, the pressing plate is pressed by the passengers or objects at the same time. At this time, the pressing plate is pressed and drives the limit plate to pop out, so that the limit plate is against the elevator car door on the other side, and then the limit plate supports the gap between the elevator car doors on both sides, so that the passengers and objects will not continue to be clamped by the elevator car doors, ensuring that there is a certain gap between the elevator car doors on both sides, so that the passengers or objects can move out from between the elevator car doors on both sides. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural schematic diagram of the utility model.
[0016] Figure 2 It is a schematic diagram of the position of the avoidance groove in the utility model.
[0017] Figure 3 It is a structural schematic diagram of the pressing plate and the limiting plate in the utility model.
[0018] Figure 4 It is a schematic diagram of the position of the rotating shaft in the utility model.
[0019] Figure 5 This utility model Figure 4 A partial enlarged view of point A in the middle.
[0020] Figure numerals: 1. elevator car door; 2. groove; 3. first mounting plate; 4. second mounting plate; 5. pressing plate; 6. limit plate; 7. guide rod; 8. fixed block; 9. moving block; 10. first connecting rod; 11. second connecting rod; 12. elastic member; 13. rotating shaft; 14. guide sleeve; 15. pressure sensor; 16. protective pad; 17. mounting hole; 18. avoidance groove. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.
[0022] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.
[0023] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.
[0024] like Figure 1-5 The utility model provides a pressure-sensing anti-pinch device, including a groove 2 opened on the side of one of the elevator car doors 1, a first mounting plate 3 and a second mounting plate 4 installed in the groove 2, a pressing plate 5 is arranged on one side of the first mounting plate 3, and a limiting plate 6 is arranged on one side of the second mounting plate 4. When the pressing plate 5 is pressed, the limiting plate 6 presses against the other elevator car door 1.
[0025] When passengers or objects are clamped by the elevator car doors on both sides, the pressing plate is pressed by the passengers or objects at the same time. At this time, the pressing plate is pressed and drives the limit plate to pop out, so that the limit plate is against the elevator car door on the other side, and then the limit plate supports the gap between the elevator car doors on both sides, so that the passengers and objects will not continue to be clamped by the elevator car doors, ensuring that there is a certain gap between the elevator car doors on both sides, so that passengers or objects can move out from between the elevator car doors on both sides.
[0026] It is worth mentioning that in this solution, the pressing plate is located in the middle of the elevator car door, and the limiting plate is located at the top of the elevator car door, so that the pressing plate is easier to be triggered by passengers or objects, and will not accidentally injure passengers or objects when the limiting plate pops out.
[0027] Preferably, at least two guide rods 7 are arranged between the first mounting plate 3 and the second mounting plate 4, a first connecting rod assembly is arranged between the guide rod 7 and the pressing plate 5, and a second connecting rod assembly is arranged between the guide rod 7 and the limiting plate 6. The first connecting rod assembly and the second connecting rod assembly have the same structure and are arranged opposite to each other, and when the first connecting rod assembly is in a compressed state, the second connecting rod assembly is in a protruding state.
[0028] Specifically, when a passenger or an object presses on the pressing plate, the first connecting rod assembly is compressed and the second connecting rod assembly protrudes at the same time, so that the second connecting rod assembly drives the limiting plate to move toward another elevator door to ensure the safety of the passenger or the object.
[0029] Preferably, the first connecting rod assembly includes a fixed block 8 for connecting the end of the guide rod 7 and the first mounting plate 3, and a movable block 9 sleeved on the guide rod 7, the fixed block 8 is connected to the pressing plate 5 through the first connecting rod 10, the movable block 9 is connected to the pressing plate 5 through the second connecting rod 11, and an elastic member 12 is connected between the fixed block 8 and the movable block 9, and the first connecting rod 10 and the fixed block 8, and the second connecting rod 11 and the movable block 9 are all hingedly connected.
[0030] Specifically, when a passenger or an object presses on the pressing plate, the pressing plate moves toward the first mounting plate and pushes the first connecting rod and the second connecting rod to be compressed, so that the pressing plate as a whole drives the first connecting rod and the second connecting rod to be compressed toward the first mounting plate. At this time, since the fixed block is set on the first mounting plate and cannot move, the movement of the pressing plate can only push the moving block in the first connecting rod assembly to move along the guide rod, and then the moving block in the second connecting rod assembly is pushed synchronously, thereby driving the first connecting rod and the second connecting rod in the second connecting rod assembly to pop out, and driving the limit plate to pop out.
[0031] It is worth mentioning that after the passenger or object leaves the pressing plate, the elastic member drives the moving block to reset, and then drives the first connecting rod and the second connecting rod to reset. During the reset process, the elastic member in the first connecting rod assembly is used to pull the moving block to reset, and the elastic member in the second connecting rod assembly is used to push the moving block to reset.
[0032] Wherein, the elastic member is a spring.
[0033] Preferably, the first connecting rod 10 and the second connecting rod 11 are rotationally matched via a rotating shaft 13 , and the pressing plate 5 is connected to one side of the rotating shaft 13 .
[0034] Specifically, the first connecting rod and the second connecting rod can be hingedly connected with the pressing plate or the limiting plate through the rotating shaft, and the relative position of the pressing plate or the limiting plate is positioned through the rotating shaft to ensure the stability of the pressing plate or the limiting plate.
[0035] It is worth mentioning that the first connecting rod assembly and the second connecting rod assembly have the same structure, but the first connecting rod and the second connecting rod in the first connecting rod assembly are connected to the pressing plate, and the first connecting rod and the second connecting rod in the second connecting rod assembly are connected to the limiting plate. Similarly, the rotating shaft in the first connecting rod assembly is connected to the pressing plate, and the rotating shaft in the second connecting rod assembly is connected to the limiting plate, but their specific usage is the same.
[0036] In particular, since the passenger or the object does not necessarily press the pressing plate in a positive direction, the pressing plate can swing to a certain extent through the rotating shaft to adapt to the pressing forces in different directions.
[0037] In a preferred embodiment of the present scheme, the guide rod, the first connecting rod assembly, and the second connecting rod assembly can be provided in two groups, and the two groups of first connecting rod assemblies or the two groups of second connecting rod assemblies are connected by a rotating shaft, so that the two groups of first connecting rod assemblies jointly support the pressing plate, and the two groups of second connecting rod assemblies jointly support the limiting plate.
[0038] Preferably, a guide sleeve 14 is connected between the moving block 9 in the first connecting rod assembly and the moving block 9 in the second connecting rod assembly, and the guide sleeve 14 is sleeved on the outer periphery of the guide rod 7, so that the moving block 9 in the first connecting rod assembly can drive the moving block 9 in the second connecting rod assembly to move along the guide rod 7.
[0039] Specifically, when the moving block in the first connecting rod assembly is pushed, the guide sleeve moves synchronously along the guide rod, and then pushes the moving block in the second connecting rod assembly through the guide sleeve, so that the pressing plate and the limiting plate can move in conjunction.
[0040] Preferably, a pressure sensor 15 is provided on one side of the first mounting plate 3 close to the pressing plate 5 .
[0041] Specifically, when the pressing plate is pressed toward the first mounting plate, the limit plate limits the other elevator door, and at the same time, the inner side of the pressing plate contacts the pressure sensor, and the pressure sensor feeds back a signal to the elevator door, thereby preventing the elevator door from being unable to pause and close.
[0042] Preferably, a protection pad 16 is provided on a side of the pressing plate 5 away from the first mounting plate 3 .
[0043] Specifically, the protective pad is used to protect passengers or objects, thereby preventing the passengers or objects from being injured by collision with the pressing plate.
[0044] The protective pad can be made of flexible materials such as rubber or sponge.
[0045] Preferably, both the first mounting plate 3 and the second mounting plate 4 are provided with mounting holes 17, so that the first mounting holes and the second mounting holes can be connected to the elevator door by passing connecting parts such as screws and bolts through the mounting holes.
[0046] Preferably, an avoidance groove 18 is provided on the other elevator car door 1 , and the pressing plate 5 matches the avoidance groove 18 .
[0047] Specifically, when the elevator doors on both sides are closed normally, in order to prevent the pressing plate from being pressed by the elevator door on the other side, an avoidance groove is opened at the other elevator door, so that when the elevator doors on both sides are closed, the pressing plate will be located in the avoidance groove for storage, and at the same time, the limit plate is stored in the groove because it does not pop out.
[0048] The present utility model is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all those having the same or similar technical solutions as the present application fall within the protection scope of the present utility model.
Claims
1. A pressure sensing anti-pinch device, characterized in that: The invention comprises a groove (2) formed on the side of one of the elevator car doors (1), a first mounting plate (3) and a second mounting plate (4) mounted in the groove (2); a pressing plate (5) is arranged on one side of the first mounting plate (3), and a limiting plate (6) is arranged on one side of the second mounting plate (4); when the pressing plate (5) is pressed, the limiting plate (6) abuts against the other elevator car door (1).
2. The pressure sensing anti-pinch device according to claim 1, characterized in that: At least two guide rods (7) are arranged between the first mounting plate (3) and the second mounting plate (4), a first connecting rod assembly is arranged between the guide rod (7) and the pressing plate (5), and a second connecting rod assembly is arranged between the guide rod (7) and the limiting plate (6). The first connecting rod assembly and the second connecting rod assembly have the same structure and are arranged opposite to each other, and when the first connecting rod assembly is in a compressed state, the second connecting rod assembly is in a protruding state.
3. The pressure sensing anti-pinch device according to claim 2, characterized in that: The first connecting rod assembly comprises a fixed block (8) for connecting the end of the guide rod (7) and the first mounting plate (3), and a movable block (9) sleeved on the guide rod (7); the fixed block (8) is connected to the pressing plate (5) through a first connecting rod (10); the movable block (9) is connected to the pressing plate (5) through a second connecting rod (11); an elastic member (12) is connected between the fixed block (8) and the movable block (9); the first connecting rod (10) and the fixed block (8), and the second connecting rod (11) and the movable block (9) are both hingedly connected.
4. The pressure sensing anti-pinch device according to claim 3, characterized in that: The first connecting rod (10) and the second connecting rod (11) are rotationally matched via a rotating shaft (13), and the pressing plate (5) is connected to one side of the rotating shaft (13).
5. The pressure sensing anti-pinch device according to claim 3, characterized in that: A guide sleeve (14) is connected between the moving block (9) in the first connecting rod assembly and the moving block (9) in the second connecting rod assembly, and the guide sleeve (14) is sleeved on the outer periphery of the guide rod (7), so that the moving block (9) in the first connecting rod assembly can drive the moving block (9) in the second connecting rod assembly to move along the guide rod (7).
6. The pressure sensing anti-pinch device according to claim 1, characterized in that: A pressure sensor (15) is provided on one side of the first mounting plate (3) close to the pressing plate (5).
7. The pressure sensing anti-pinch device according to claim 1, characterized in that: A protection pad (16) is provided on one side of the pressing plate (5) away from the first mounting plate (3).
8. The pressure sensing anti-pinch device according to claim 1, characterized in that: The first mounting plate (3) and the second mounting plate (4) are both provided with mounting holes (17).
9. The pressure sensing anti-pinch device according to claim 1, characterized in that: Another elevator car door (1) is provided with an avoidance groove (18), and the pressing plate (5) matches the avoidance groove (18).