Anti-pinch alarm device for elevator

Abstract

The utility model relates to the field of anti-pinch alarm, in particular to an anti-pinch alarm device for an elevator. The cover plate is arranged on the shell; the connecting pipe is arranged in the shell; the sucking disc is arranged on the connecting pipe; the air pressure plate is slidably arranged in the connecting pipe and used for controlling air pressure in the suction cup; the pressing piece is arranged on the shell in a sliding manner; the rotating bracket is arranged on the pressing piece; according to the anti-pinch alarm device for the elevator, the anti-pinch alarm device is installed on the inner wall of a common elevator door, so that the anti-pinch alarm device can be conveniently combined with most common elevators for use; the device is symmetrically installed on the elevator door so that the device can slide along with the elevator door, when the pressing piece inclines, it is indicated that the device is extruded unevenly in the closing process, an alarm is triggered, and therefore people are prevented from being pinched.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-pinch alarm, in particular to an anti-pinch alarm device for an elevator. Background Art

[0002] As the number of elevators increases, people pay more and more attention to the safety issues of elevators during use. In the prior art, a car door is left between the two front walls of the elevator car for passengers to enter and exit the car, and the car door is closed by an elevator sliding door. However, there is a gap between the traditional elevator sliding door and the front wall of the car, and the elevator sliding door also has a certain amount of deformation. Therefore, when opening the door, children's hands are at risk of being pinched. Therefore, it is necessary to propose a device that can prevent children's hands from being pinched when opening the door.

[0003] The Chinese patent with the publication number CN216785418U discloses an anti-pinch protection device for young children in an elevator car, which includes two anti-pinch components, the anti-pinch components include a mounting column, an anti-pinch baffle, a support spring, and an induction switch; the mounting column, the anti-pinch baffle, the end of the anti-pinch baffle away from the elevator sliding door is rotatably connected to the mounting column, and a protective cushion is provided on the outer surface of the anti-pinch baffle. When the child's hand accidentally enters the gap between the front wall of the car and the elevator sliding door during the opening of the elevator sliding door, the hand will first touch the protective cushion, push the anti-pinch baffle, so that the anti-pinch baffle turns inward with the rotating shaft as the rotation center and presses the induction end of the induction switch, and the induction switch sends a signal to the control part of the elevator sliding door, so that the elevator sliding door stops opening, thereby preventing the child's hand from being pinched. Moreover, while controlling the elevator to stop working, the control part can use the voice broadcast device and the communication module to quickly issue an alarm message to the outside, which can improve the efficiency of rescuing the trapped person.

[0004] However, the above-mentioned disclosed solution has the following shortcomings: the above-mentioned device needs to be installed inside the elevator door when in use, and can only be used after being combined with the elevator door structure. Therefore, the above-mentioned device can only be used in combination with the elevator in which the above-mentioned device is installed in combination with the above-mentioned device in actual use, which is restricted by different elevator models and increases the difficulty of actual installation of the above-mentioned device. Utility Model Content

[0005] The purpose of the utility model is to solve the technical problems existing in the background technology. The utility model proposes an elevator anti-pinch alarm device. The utility model is installed on the inner wall of an ordinary elevator door so that the device can be easily used in combination with most ordinary elevators. The device is symmetrically installed on the elevator door so that the device slides with the elevator door. When the pressing piece is tilted, it means that the closing process is unevenly squeezed, which triggers an alarm to avoid people being pinched.

[0006] The utility model proposes an elevator anti-pinch alarm device, comprising:

[0007] case;

[0008] A cover plate, arranged on the shell;

[0009] A connecting pipe is arranged in the shell;

[0010] A suction cup, arranged on the connecting pipe;

[0011] An air pressure plate is slidably arranged in the connecting pipe and is used to control the air pressure inside the suction cup;

[0012] A pressing member, slidably disposed on the housing;

[0013] A rotating bracket is arranged on the pressing member;

[0014] The sliding shaft is slidably arranged in the shell.

[0015] Preferably, a threaded bracket is provided on the connecting pipe, a locking knob is provided on the threaded bracket, a threaded rod is threadedly provided on the threaded bracket, a rotating handle is provided on the threaded rod, and the other end of the threaded rod is rotatably connected to the air pressure plate.

[0016] Preferably, a sealing member is provided on the suction cup, and a sealing ring is provided on the air pressure plate, and the sealing ring contacts and is squeezed against the inner wall of the connecting pipe.

[0017] Preferably, the locking knob comprises a locking threaded rod, a damping member is provided on the locking threaded rod, the locking threaded rod is threadedly connected to the threaded bracket, and the damping member is in contact and extrusion with the side surface of the threaded rod.

[0018] Preferably, a spring is arranged in the shell, the other end of the spring is connected to the pressing member, a rotating shaft is rotatably arranged on the rotating bracket, a rotating rod is rotatably arranged on the rotating shaft, a pointer is arranged on the rotating rod, and a trigger member is arranged on the pointer.

[0019] Preferably, a mounting plate is provided on the sliding shaft, an arc-shaped groove is provided on the mounting plate, two groups of trigger sensors are provided on the mounting plate, and the two groups of trigger sensors are arranged inside the arc-shaped groove.

[0020] Preferably, the trigger member is slidably connected to the arc-shaped groove on the mounting plate, there is a distance between the mounting plate and the rotating rod, two groups of trigger sensors are distributed on both sides of the trigger member, and alarms are provided on the two groups of trigger sensors.

[0021] Preferably, a sliding groove is provided in the shell, a sliding protrusion is provided on the sliding shaft, and the sliding groove is slidably connected to the sliding protrusion.

[0022] The above technical solution of the utility model has the following beneficial technical effects:

[0023] The utility model is installed on the inner wall of an ordinary elevator door so that the device can be easily used in combination with most ordinary elevators. The device is symmetrically installed on the elevator door so that the device slides with the elevator door. When the pressing piece is tilted, it means that the closing process is unevenly squeezed, triggering an alarm to avoid people being pinched. The device can improve its compatibility with elevators and reduce the difficulty of installation by external installation. The maximum opening and closing range of the elevator door can be set to avoid the device from colliding with the inner wall of the elevator hall. When the device is used normally, the pressing piece is always in a vertical state during the closing process of the elevator door. Multiple groups of pressing pieces contact and squeeze each other. At this time, the elevator door is closed normally. When the elevator door touches a hand or other limbs when closing, since the width of the hand is much smaller than the length of the pressing piece, the pressing piece tilts to trigger a sensor alarm. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a front view of an embodiment of an elevator anti-pinch alarm device of the utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the pressing member in the embodiment of the utility model;

[0026] Figure 3 A cross-sectional view of an embodiment of the utility model;

[0027] Figure 4 This is a schematic diagram of the structure of part A in the embodiment of the utility model;

[0028] Figure numerals: 1. Shell; 2. Cover plate; 3. Connecting pipe; 4. Threaded bracket; 5. Locking knob; 6. Threaded rod; 7. Rotating handle; 8. Air pressure plate; 9. Suction cup; 10. Pressing piece; 11. Spring; 12. Rotating bracket; 13. Rotating shaft; 14. Rotating connecting rod; 15. Rotating rod; 16. Pointer; 17. Trigger member; 18. Mounting plate; 19. Arc groove; 20. Trigger sensor; 21. Sliding shaft. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0031] like Figure 1-Figure 4 As shown, the utility model proposes an elevator anti-pinch alarm device, comprising:

[0032] case;

[0033] A cover plate, arranged on the shell;

[0034] A connecting pipe is arranged in the shell;

[0035] A suction cup, arranged on the connecting pipe;

[0036] An air pressure plate is slidably arranged in the connecting pipe and is used to control the air pressure inside the suction cup;

[0037] A pressing member, slidably disposed on the housing;

[0038] A rotating bracket is arranged on the pressing member;

[0039] The sliding shaft is slidably arranged in the shell.

[0040] The connecting pipe is provided with a threaded bracket, the threaded bracket is provided with a locking knob, the threaded bracket is threadedly provided with a threaded rod, the threaded rod is provided with a rotating handle, and the other end of the threaded rod is rotatably connected to the air pressure plate.

[0041] The suction cup is provided with a sealing member, the air pressure plate is provided with a sealing ring, and the sealing ring contacts and squeezes the inner wall of the connecting pipe.

[0042] The locking knob comprises a locking threaded rod, a damping member is arranged on the locking threaded rod, the locking threaded rod is threadedly connected with the threaded bracket, and the damping member contacts and squeezes the side surface of the threaded rod.

[0043] The sliding shaft is provided with a mounting plate, the mounting plate is provided with an arc-shaped groove, the mounting plate is provided with two groups of trigger sensors, and the two groups of trigger sensors are arranged inside the arc-shaped groove.

[0044] A sliding groove is arranged in the shell body, a sliding protrusion is arranged on the sliding shaft, and the sliding groove is slidably connected with the sliding protrusion.

[0045] The triggering member is slidably connected to the arc-shaped groove on the mounting plate, there is a distance between the mounting plate and the rotating rod, two groups of triggering sensors are distributed on both sides of the triggering member, and alarms are arranged on the two groups of triggering sensors.

[0046] In this embodiment, the device can be easily combined and connected with a traditional elevator door through external installation, thereby avoiding the problem of low compatibility between the device and the elevator, and reducing the difficulty of installing the device.

[0047] When the device is in working state, the elevator door is closed first. At this time, the staff is inside the elevator. By adjusting the elevator door opening motor, the opening degree of the elevator door is reduced, thereby avoiding the collision of the device with the elevator door frame when in use. After the elevator adjustment is completed, the suction cup 9 is facing the side of the inner wall of the elevator door. By turning the handle 7, the air pressure plate 8 can be driven to slide away from the suction cup 9, thereby achieving the effect of adsorbing and fixing the shell 1 on the inner wall of the elevator door. The structure of the locking knob 5 can prevent the threaded rod 6 from accidentally rotating, thereby ensuring the installation and fixing stability of the device. At this time, the installation position of the shell 1 is flush with the edge of the elevator door, and the pressing piece 10 protrudes from the edge of the elevator door. Multiple groups of the device are symmetrically installed on the side of the elevator door for combined use.

[0048] When the device installs and fixes the shell 1 through the suction cup 9, the elevator door is opened. Through the pre-adjusted opening range of the elevator door, the shell 1 will not collide with the elevator door frame. At this time, the pressing piece 10 bounces outward under the action of the spring 11 and protrudes from the side of the elevator door.

[0049] Before the elevator door is closed, the trigger sensor 20 inside the housing 1 is electrically connected to the elevator motor itself, so that the trigger sensor 20 has the effect of controlling the elevator motor.

[0050] At this time, the elevator door is closed. When it is in a normal unobstructed state, the pressing member 10 will contact the elevator door before the elevator door during the closing process. At this time, due to no obstruction, the pressing member 10 is in a vertical state and squeezed inward. At this time, the spring 11 contracts but the trigger member 17 is between the multiple groups of trigger sensors 20 and does not contact the multiple groups of trigger sensors 20, so no alarm occurs.

[0051] When there is a limb obstruction when the elevator door is closing, due to the structure of the pressing piece 10 that contacts the limb before the elevator door, and since the surface of the limb is arc-shaped, after the pressing piece 10 contacts the limb, driven by the elevator door, the pressing piece 10 tilts along the tangent direction of the arc of the limb. At this time, the contraction degree of the top and bottom of the pressing piece 10 is inconsistent, and the pressing piece 10 tilts.

[0052] When the pressing member 10 is tilted, the structure of the rotating bracket 12 and the rotating shaft 13 can make the rotating rod 15 tilt and rotate synchronously when the pressing member 10 is tilted. Since a pointer 16 is provided on the rotating rod 15, the pointer 16 also tilts when the rotating rod 15 is tilted, so that the side of the trigger member 17 contacts the trigger sensors 20 on both sides. The trigger sensors 20 can be used to alarm and control the elevator door motor to stop. Since the pressing member 10 protrudes from the elevator door, the elevator door is not completely closed when the trigger sensor 20 alarms, thereby reducing the injury of limbs being squeezed.

[0053] When the pressing piece 10 slides, due to the structure of the arc-shaped groove on the mounting plate 18, the trigger piece 17 can drive the mounting plate 18 to rise and fall and slide synchronously. The sliding shaft 21 can support the mounting plate 18 to avoid problems such as tilting of the mounting plate 18 during the driven sliding process, thereby ensuring that when the pressing piece 10 is squeezed to any degree and tilts, the trigger sensor 20 can be triggered in time, thereby achieving an alarm effect.

[0054] Embodiment 2

[0055] like Figure 1-Figure 4 As shown, an elevator anti-pinch alarm device proposed by the utility model, compared with the first embodiment, in this embodiment, a spring 11 is arranged in the shell 1, the other end of the spring 11 is connected to the pressing member 10, a rotating shaft 13 is rotatably arranged on the rotating bracket 12, a rotating rod 15 is rotatably arranged on the rotating shaft 13, a pointer 16 is arranged on the rotating rod 15, and a trigger member 17 is arranged on the pointer 16.

[0056] The combination of the pointer 16 and the trigger member 17 can contact the trigger sensor 20 at the moment when the pressing member 10 tilts, thereby generating an alarm, ensuring the timeliness of the anti-pinch effect of the device and avoiding problems such as transmission delay.

[0057] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0058] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. An elevator anti-pinch alarm device, characterized in that: include: Housing (1); A cover plate (2) is arranged on the housing (1); A connecting pipe (3) is arranged in the housing (1); A suction cup (9) is arranged on the connecting pipe (3); An air pressure plate (8) is slidably disposed in the connecting pipe (3) and is used to control the air pressure inside the suction cup (9); A pressing member (10) is slidably disposed on the housing (1); A rotating bracket (12) is arranged on the pressing member (10); The sliding shaft (21) is slidably arranged in the housing (1).

2. An elevator anti-pinch alarm device according to claim 1, characterized in that: The connecting pipe (3) is provided with a threaded bracket (4), a locking knob (5) is provided on the threaded bracket (4), a threaded rod (6) is threadedly provided on the threaded bracket (4), a rotating handle (7) is provided on the threaded rod (6), and the other end of the threaded rod (6) is rotatably connected to the air pressure plate (8).

3. An elevator anti-pinch alarm device according to claim 1, characterized in that: The suction cup (9) is provided with a sealing member, and the air pressure plate (8) is provided with a sealing ring, which contacts and squeezes the inner wall of the connecting pipe (3).

4. An elevator anti-pinch alarm device according to claim 2, characterized in that: The locking knob (5) comprises a locking threaded rod, a damping member is provided on the locking threaded rod, the locking threaded rod is threadedly connected to the threaded bracket (4), and the damping member is in contact and extrusion with the side surface of the threaded rod (6).

5. The elevator anti-pinch alarm device according to claim 1, characterized in that: A spring (11) is arranged in the housing (1), the other end of the spring (11) is connected to the pressing member (10), a rotating shaft (13) is rotatably arranged on the rotating bracket (12), a rotating rod (15) is rotatably arranged on the rotating shaft (13), a pointer (16) is arranged on the rotating rod (15), and a trigger member (17) is arranged on the pointer (16).

6. The elevator anti-pinch alarm device according to claim 1, characterized in that: The sliding shaft (21) is provided with a mounting plate (18), the mounting plate (18) is provided with an arc-shaped groove, and the mounting plate (18) is provided with two groups of trigger sensors (20), and the two groups of trigger sensors (20) are arranged inside the arc-shaped groove.

7. An elevator anti-pinch alarm device according to claim 5, characterized in that: The trigger member (17) is slidably connected to the arc-shaped groove on the mounting plate (18), and there is a distance between the mounting plate (18) and the rotating rod (15). Two groups of trigger sensors (20) are distributed on both sides of the trigger member (17), and alarms are provided on the two groups of trigger sensors (20).

8. An elevator anti-pinch alarm device according to claim 6, characterized in that: A sliding groove is provided in the housing (1), a sliding protrusion is provided on the sliding shaft (21), and the sliding groove is slidably connected to the sliding protrusion.

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