Elevator door protection device
By designing the 3D light curtain protection device and limiting components in the housing in the elevator, the problem of relying solely on the layer door motor for torque judgment cannot effectively prevent human impact in the prior art, and the safe opening and closing operation of the elevator door is realized, avoiding passenger damage and reducing the blockage and use of the door motor.
Patent Information
- Application Number
- CN202421293440.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-06-06
AI Technical Summary
In the existing elevator technology, the torque judgment of the floor door motor is only used to achieve protection, which cannot effectively prevent impact damage when the human body comes into contact with the floor door.
An elevator door protection device is designed, including a 3D light curtain protection device, a connecting rod, a limiting plate, a limiting assembly and an auxiliary mechanism in the housing. Through the coordination of the sensing area and the limiting assembly of the 3D light curtain protection device, the safe door opening and closing operation of the car door is realized.
It effectively avoids impact damage to passengers by the automatic hall door, reduces the impact of the door motor blockage and use, and improves the convenience of quick disassembly and assembly and maintenance of the 3D light curtain protection device.
Smart Images
Figure CN222612673U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of elevators, and in particular to an elevator door protection device. Background Art
[0002] With the rapid economic development, the aging population is accelerating, and small-sized bottomless pit household platform ladders are increasingly used. Because the platform ladder is only equipped with a floor door device but not a car door, it is impossible to use the existing traditional safety touch panel or light curtain device to protect the human body at the door opening and closing position.
[0003] At present, protection is achieved only by relying on the torque judgment of the floor door motor. That is, when the human body comes into contact with the floor door, the door motor judges the pulse and torque changes, and opens and closes the door in the reverse direction after reaching the motor stall limit. Therefore, we have made improvements to this and proposed an elevator door protection device. Summary of the invention
[0004] The utility model aims to realize protection by only relying on the torque judgment of the floor door motor at present, that is, when the human body contacts the floor door, the door motor judges the pulse and torque changes, and reverses the door opening and closing after reaching the motor stall limit.
[0005] In order to achieve the above-mentioned purpose of the invention, the utility model provides an elevator door protection device to improve the above-mentioned problem.
[0006] The specific application is as follows:
[0007] It includes a car, a shell is inserted at the top between the two car doors of the car, the shell is fixedly installed on the car, a 3D light curtain protection device is arranged in the shell, a connecting rod is fixedly arranged on one side of the 3D light curtain protection device, and a slide groove matching the connecting rod is opened in the middle of one side of the shell, a limit plate is fixedly arranged on one side of the connecting rod, a limit assembly is arranged between the limit plate and the shell, an auxiliary mechanism for driving the limit assembly is arranged at the bottom end of the limit plate, and a protective mechanism is arranged on the side of the limit plate facing the shell.
[0008] As a preferred technical solution of the present application, the limiting assembly is composed of a first limiting mechanism and a second limiting mechanism.
[0009] As a preferred technical solution of the present application, the first limiting mechanism is composed of two first limiting rods, two hemispherical parts and two first springs.
[0010] As a preferred technical solution of the present application, the two first limit rods are respectively located at the top and bottom of the connecting rod, and one end of the first limit rod is connected to the shell through an insertion, and two limit grooves matching the hemispherical part are provided from top to bottom at the top of one side of the limit plate, and the other end of the first limit rod is passed into the limit groove and fixedly connected to one side of the hemispherical part, the first spring is sleeved on the first limit rod, and the first spring is fixedly installed between the hemispherical part and the limit groove.
[0011] As a preferred technical solution of the present application, the second limiting mechanism is composed of a second limiting rod, a sliding block and a second spring.
[0012] As a preferred technical solution of the present application, a groove matching the second limit rod is opened in the limit plate, the other side of the hemispherical part contacts one side of the second limit rod, a through groove matching the hemispherical part is opened in the middle of one side of the second limit rod, and the through groove is located between the two hemispherical parts, a limiting sliding groove slidably connected to the slider is opened at the bottom of one side of the groove, and one end of the slider is fixedly connected to the second limit rod, and the second spring is fixedly installed between the slider and the top end in the limiting sliding groove.
[0013] As a preferred technical solution of the present application, the auxiliary mechanism includes a baffle, which is arranged at the bottom end of the limit plate, and the bottom end of the second limit rod is in contact with the top end of the baffle, one side of the baffle is hinged to the limit plate through a hinge, and a lock hole is provided at the bottom end of the baffle and on the side away from the hinge.
[0014] As a preferred technical solution of the present application, the protective mechanism includes a positioning member, which is fixedly installed at the bottom end of one side of the limiting plate. A rotating shaft is arranged in the positioning member, and one end of the rotating shaft is fixedly connected to the limiting plate.
[0015] As a preferred technical solution of the present application, the protective mechanism also includes a rotating block matching the positioning member, the middle portion of the rotating block is rotatably connected to the rotating shaft, and a grip rod is fixedly disposed on the top of the rotating block.
[0016] As a preferred technical solution of the present application, a cushion layer is fixedly provided on the outer side of the grip rod.
[0017] Compared with the prior art, the utility model has the following beneficial effects:
[0018] In the scheme of this application:
[0019] 1. In order to solve the problem that the existing technology only relies on the floor door motor to judge the torque to achieve protection, that is, when the human body contacts the floor door, the door motor judges the pulse and torque changes, and the door is reversed after reaching the motor blocking limit, the shell set in this application can enable the 3D light curtain protection device to be installed on the car. Under the action of the 3D light curtain protection device, when passengers enter and exit the car, as long as they are in the sensing area of the 3D light curtain protection device, the 3D light curtain protection device will output a signal to keep the state of the car door motor, and then open the door to the full position first, and then close the door to the full position, and run to the destination floor. Through this setting, not only the impact of the automatic hall door on the passengers is avoided, but also the impact of the blocking of the door motor is reduced;
[0020] 2. The 3D light curtain protection device can be initially installed in the housing by means of the connecting rod and the limit plate. The limit assembly can be operated by the auxiliary mechanism. Under the action of the limit assembly, the 3D light curtain protection device can be further limited. This arrangement enables the 3D light curtain protection device to be quickly disassembled and assembled, which is convenient for maintenance and replacement. In addition, under the action of the auxiliary mechanism, the 3D light curtain protection device can be prevented from being removed by passengers, thereby improving practicality.
[0021] 3. Through the protection mechanism, the wheelchair passenger can rotate the grip of the protection mechanism to a vertical state, and then can hold the grip with the hand, which plays a protective role for the wheelchair passenger and provides practicality. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 A schematic diagram of the structure of the elevator door protection device provided for this application;
[0023] Figure 2 A schematic diagram of the structure of the limit assembly and protection mechanism of the elevator door protection device provided in this application;
[0024] Figure 3 A schematic diagram of the partial structure of the limit assembly and protection mechanism of the elevator door protection device provided in this application;
[0025] Figure 4 A schematic cross-sectional structure diagram of the limit assembly and protection mechanism of the elevator door protection device provided in this application.
[0026] Indicated in the figure:
[0027] 1. Car;
[0028] 2. Shell;
[0029] 3. 3D light curtain protection device;
[0030] 4. Connecting rod;
[0031] 5. Limiting plate;
[0032] 6. Limiting assembly; 601. First limiting rod; 602. Hemispherical member; 603. First spring; 604. Second limiting rod; 605. Sliding block; 606. Second spring;
[0033] 7. Auxiliary mechanism; 701. Baffle; 702. Lock hole;
[0034] 8. Protective mechanism; 801. Positioning member; 802. Rotating shaft; 803. Rotating block; 804. Grip. DETAILED DESCRIPTION
[0035] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.
[0036] As in the background art, protection is achieved by relying only on the floor door motor to judge the torque, that is, when the human body contacts the floor door, the door motor judges the pulse and torque changes, and opens and closes the door in the reverse direction after reaching the motor stall limit.
[0037] In order to solve this technical problem, the utility model provides an elevator door protection device, which is applied to an elevator.
[0038] Specifically, please refer to Figure 1-4 , the elevator door protection device specifically includes:
[0039] A car 1, with a shell 2 inserted at the top between the two car doors of the car 1, the shell 2 is fixedly installed on the car 1, a 3D light curtain protection device 3 is arranged in the shell 2, a connecting rod 4 is fixedly arranged on one side of the 3D light curtain protection device 3, and a slide groove matching the connecting rod 4 is opened in the middle of one side of the shell 2, a limit plate 5 is fixedly arranged on one side of the connecting rod 4, a limit assembly 6 is arranged between the limit plate 5 and the shell 2, an auxiliary mechanism 7 for driving the limit assembly 6 is arranged at the bottom end of the limit plate 5, and a protective mechanism 8 is arranged on the side of the limit plate 5 facing the shell 2.
[0040] The elevator door protection device provided by the utility model can enable the 3D light curtain protection device to be installed on the car through the provided shell. Under the action of the 3D light curtain protection device, when passengers enter and exit the car, as long as they are within the sensing area of the 3D light curtain protection device, the 3D light curtain protection device will output a signal to keep the car door motor state, and then open the door to the full position first, and then close the door to the full position, and run to the destination floor. Through this setting, not only can the impact damage of the automatic hall door to the passengers be avoided, but also the impact of the jamming of the door motor can be reduced.
[0041] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.
[0042] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.
[0043] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0044] Example 1, please refer to Figure 2 , an elevator door protection device, whose limiting assembly 6 consists of a first limiting mechanism and a second limiting mechanism.
[0045] Please refer to Figure 2 and Figure 4 , an elevator door protection device, whose first limiting mechanism is composed of two first limiting rods 601, two hemispherical parts 602 and two first springs 603.
[0046] Embodiment 2 further optimizes the elevator door protection device provided in Embodiment 1. Specifically, Figure 2 and Figure 4 As shown, the two first limit rods 601 are respectively located at the top and bottom of the connecting rod 4, and one end of the first limit rod 601 is connected with the shell 2 through an insertion, and two limit grooves matching the hemispherical part 602 are provided on the top of one side of the limit plate 5 from top to bottom, and the other end of the first limit rod 601 is passed into the limit groove and fixedly connected with one side of the hemispherical part 602, and the first spring 603 is sleeved on the first limit rod 601, and the first spring 603 is fixedly installed between the hemispherical part 602 and the limit groove.
[0047] Further, such as Figure 2 and Figure 4 As shown, the second limiting mechanism is composed of a second limiting rod 604 , a slider 605 and a second spring 606 , and the elastic force of the second spring 606 is greater than that of the first spring 603 .
[0048] Embodiment 3 further optimizes the elevator door protection device provided in Embodiment 1 or 2. Specifically, Figure 2 and Figure 4 As shown, a groove matching the second limiting rod 604 is opened in the limiting plate 5, the other side of the hemispherical part 602 contacts one side of the second limiting rod 604, a through groove matching the hemispherical part 602 is opened in the middle of one side of the second limiting rod 604, and the through groove is located between the two hemispherical parts 602, a limiting slide groove slidably connected to the slider 605 is opened at the bottom of one side of the groove, and one end of the slider 605 is fixedly connected to the second limiting rod 604, and the second spring 606 is fixedly installed between the slider 605 and the top end in the limiting slide groove.
[0049] Further, such as Figure 2-4 As shown, the auxiliary mechanism 7 includes a baffle 701, which is arranged at the bottom end of the limit plate 5, and the bottom end of the second limit rod 604 is in contact with the top end of the baffle 701, one side of the baffle 701 is hinged to the limit plate 5 through a hinge, and a lock hole 702 is provided at the bottom end of the baffle 701 and on the side away from the hinge.
[0050] Further, such as Figure 2-4 As shown, the protection mechanism 8 includes a positioning member 801 , which is fixedly mounted on the bottom end of one side of the limiting plate 5 . A rotating shaft 802 is arranged inside the positioning member 801 , and one end of the rotating shaft 802 is fixedly connected to the limiting plate 5 .
[0051] Embodiment 4: The elevator door protection device provided in the above embodiments is further optimized, such as Figure 2-4 As shown, the protection mechanism 8 also includes a rotating block 803 that matches the positioning member 801 . The middle part of the rotating block 803 is rotatably connected to the rotating shaft 802 . The damping between the rotating block 803 and the rotating shaft 802 is relatively large. A grip 804 is fixed to the top of the rotating block 803 .
[0052] Further, such as Figure 2-4 As shown, a soft cushion layer is fixedly provided on the outer side of the grip bar 804, and the soft cushion layer can provide a better experience for passengers riding in the wheelchair.
[0053] The use process of the elevator door protection device provided by the utility model is as follows:
[0054] When installing the protective device, the operator holds the limit plate 5, aligns the connecting rod 4 with the slide groove, moves the limit plate 5, and inserts the 3D light curtain protection device 3 into the shell 2. At this time, the baffle 701 is closed, forcing the second limit rod 604 to drive the slider 605 to move upward, the second spring 606 is compressed, and the second limit rod 604 moves upward, forcing the hemispherical part 602 to drive the first limit rod 601 to move until the first limit rod 601 is inserted and connected with the shell 2, the first spring 603 is compressed, and at this time the groove moves to between the two hemispherical parts 602, through the lock hole 7 02, with the external key, the baffle 701 is fixed, and then the 3D light curtain protection device 3 is fixed on the shell 2. Under the action of the 3D light curtain protection device 3, there are three working modes: 1. When the elevator transports passengers to the designated floor and there is no one in the sensing area, the door will open automatically to release the passengers. When the passengers walk out of the boarding area from the car, the automatic hall door will remain in the open position and will not move in the sensing area to avoid the passengers from walking out slowly and colliding with the passengers when the door is automatically closed after the door opening time exceeds the time limit; 2. When the elevator runs unloaded to the floor where the passengers call for the elevator, it is necessary to enter When standing in the sensing area, the elevator will not open the door after arriving at the station to avoid collision and injury caused by passengers being too close to the automatic hall door during the door opening process; at this time, the passengers need to retreat to the non-sensing area, and the automatic door will open in place, and the passengers can enter, and then the automatic door will close and run to the destination floor required by the passengers; third, when the door is partially opened / closed and the personnel enter the sensing area, the door remains motionless to avoid collision and injury with the personnel. At this time, the personnel need to retreat and leave the sensing area, and the door will open in place. After the personnel enter and exit the elevator, the automatic hall door will close again; when the 3D light curtain protection device 3 When a fault occurs, the baffle 701 is opened by an external key, and under the resetting action of the second spring 606 and the first spring 603, the first limit rod 601 is separated from the shell 2, and then the limit plate 5 can be directly moved by hand to remove the 3D light curtain protection device 3 for repair or replacement; for passengers in wheelchairs, the grip 804 can be rotated to a vertical state by rotating the shaft 802, in conjunction with the positioning piece 801 and the rotating block 803, and then the grip 804 can be held by hand, which plays a protective role for passengers in wheelchairs and provides practicality.
[0055] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0056] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.
Claims
1. An elevator door protection device, characterized in that: The invention comprises a car (1), wherein a shell (2) is inserted at the top between two car doors of the car (1), the shell (2) is fixedly mounted on the car (1), a 3D light curtain protection device (3) is arranged inside the shell (2), a connecting rod (4) is fixedly arranged on one side of the 3D light curtain protection device (3), and a slide groove matching the connecting rod (4) is opened in the middle of one side of the shell (2), a limit plate (5) is fixedly arranged on one side of the connecting rod (4), a limit assembly (6) is arranged between the limit plate (5) and the shell (2), an auxiliary mechanism (7) for driving the limit assembly (6) is arranged at the bottom end of the limit plate (5), and a protective mechanism (8) is arranged on the side of the limit plate (5) facing the shell (2).
2. An elevator door protection device according to claim 1, characterized in that: The limiting assembly (6) consists of a first limiting mechanism and a second limiting mechanism.
3. An elevator door protection device according to claim 2, characterized in that: The first limiting mechanism is composed of two first limiting rods (601), two hemispherical parts (602) and two first springs (603).
4. An elevator door protection device according to claim 3, characterized in that: The two first limiting rods (601) are respectively located at the top and bottom of the connecting rod (4), and one end of the first limiting rod (601) is connected to the shell (2) through an insertion, and two limiting grooves matching the hemispherical part (602) are provided from top to bottom at the top of one side of the limiting plate (5), and the other end of the first limiting rod (601) is passed into the limiting groove and fixedly connected to one side of the hemispherical part (602), and the first spring (603) is sleeved on the first limiting rod (601), and the first spring (603) is fixedly installed between the hemispherical part (602) and the limiting groove.
5. An elevator door protection device according to claim 4, characterized in that: The second limiting mechanism is composed of a second limiting rod (604), a sliding block (605) and a second spring (606).
6. An elevator door protection device according to claim 5, characterized in that: The limiting plate (5) is provided with a groove matching the second limiting rod (604), the other side of the hemispherical part (602) contacts one side of the second limiting rod (604), the middle part of one side of the second limiting rod (604) is provided with a through groove matching the hemispherical part (602), and the through groove is located between the two hemispherical parts (602), the bottom of one side of the groove is provided with a limiting sliding groove slidably connected to the slider (605), and one end of the slider (605) is fixedly connected to the second limiting rod (604), and the second spring (606) is fixedly installed between the slider (605) and the top end in the limiting sliding groove.
7. An elevator door protection device according to claim 6, characterized in that: The auxiliary mechanism (7) comprises a baffle (701), wherein the baffle (701) is arranged at the bottom end of the limiting plate (5), and the bottom end of the second limiting rod (604) is in contact with the top end of the baffle (701), one side of the baffle (701) is hinged to the limiting plate (5) via a hinge, and a locking hole (702) is provided at the bottom end of the baffle (701) and on a side away from the hinge.
8. An elevator door protection device according to claim 7, characterized in that: The protection mechanism (8) comprises a positioning member (801), wherein the positioning member (801) is fixedly mounted at the bottom end of one side of the limiting plate (5), a rotating shaft (802) is arranged inside the positioning member (801), and one end of the rotating shaft (802) is fixedly connected to the limiting plate (5).
9. An elevator door protection device according to claim 8, characterized in that: The protection mechanism (8) further comprises a rotating block (803) matched with the positioning member (801), the middle portion of the rotating block (803) is rotatably connected to the rotating shaft (802), and a gripping rod (804) is fixedly provided at the top end of the rotating block (803).
10. An elevator door protection device according to claim 9, characterized in that: A soft cushion layer is fixedly provided on the outer side of the grip rod (804).