Anti-pinch safety device for elevator door
By setting up laser detection system and rack-driven shift components on the elevator door, the problem that existing elevator anti-clip devices are difficult to detect foreign objects is solved, effectively detecting and preventing foreign objects in the elevator door, and improving safety and Practicality.
Patent Information
- Application Number
- CN202421148602.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-24
AI Technical Summary
The existing elevator anti-clip device is difficult to detect foreign objects such as dog leashes and children's anti-lossing bracelets, which leads to safety accidents and is less practical.
An anti-clip safety device for elevator doors is designed. By setting a transmitting part and a receiving part on the elevator door, a laser transmitter and a receiver detect foreign objects, and a rack and displacement assembly detect foreign objects, combined with a limiting mechanism and positioning department are conveniently maintained.
Effectively detect and prevent the existence of foreign objects in the elevator door, improves safety, is low in cost, is convenient to disassemble and assemble, and improves the practicality of the device.
Smart Images
Figure CN222273810U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of elevators, in particular to an anti-pinch safety device for elevator doors. Background Art
[0002] An elevator is a permanent transportation device that serves several specific floors in a building, with its car running on at least two rows of rigid tracks that are perpendicular to the horizontal plane or inclined at an angle of less than 15° to the plumb line. There are also step-type ones, with the treads mounted on the tracks and running continuously, commonly known as escalators or moving walkways.
[0003] At present, although the existing elevators are equipped with anti-pinch devices to prevent accidents, it is not easy to detect dog leashes, children's anti-lost hand ropes, etc., which may lead to safety accidents and have low practicality.
[0004] Therefore, we have made improvements to this and proposed an elevator door anti-pinch safety device. Summary of the invention
[0005] The purpose of the utility model is to solve the problem that although the existing elevators are equipped with anti-pinch devices to prevent accidents, dog leashes, children's anti-lost hand ropes, etc. are not easy to be detected, which may lead to safety accidents and have low practicality.
[0006] In order to achieve the above-mentioned purpose of the invention, the utility model provides an elevator door anti-pinch safety device to improve the above-mentioned problem.
[0007] The specific application is as follows:
[0008] It includes an elevator body and two elevator doors, wherein the two elevator doors are provided with slots on opposite sides, wherein a transmitting part and a receiving part are respectively arranged in the two slots, wherein shifting components for moving the transmitting part and the receiving part are also arranged in the two slots, and limiting mechanisms are respectively arranged between the two shifting components and the transmitting part and the receiving part, wherein a rack matching the shifting component is embedded on the base of the elevator body, wherein a positioning slot is provided on one side of the slot, and a positioning part is arranged on the positioning slot.
[0009] As a preferred technical solution of the present application, the transmitting part is composed of two laser emitters, one of which is located at the top of the slot and the other is located in the middle of the slot, and a slot is provided on the laser emitter.
[0010] As a preferred technical solution of the present application, the receiving part is composed of two laser receivers, one of which is located at the top of the slot, and the other is located in the middle of the slot, and the two laser transmitters correspond one-to-one to the two laser receivers respectively, and a slot is also provided on the laser receiver.
[0011] As a preferred technical solution of the present application, the displacement assembly consists of a driving part and a displacement part.
[0012] As a preferred technical solution of the present application, the driving part includes a first gear, which is located on one side of the bottom end of the slot and is meshingly connected to the rack. A first rotating shaft is fixed on the first gear and is rotatably connected in the slot.
[0013] As a preferred technical solution of the present application, the displacement portion includes a second gear, which is meshed and connected to one side of the first gear. A second rotating shaft is fixed on the second gear, and the second rotating shaft is rotatably connected in the slot. The top of the slot is also rotatably connected to the second rotating shaft.
[0014] As a preferred technical solution of the present application, the displacement portion further includes two pulleys, the two pulleys are fixedly mounted on two second rotating shafts, and a belt is provided between the two pulleys.
[0015] As a preferred technical solution of the present application, the limiting mechanism includes two sliders, which are respectively fixedly mounted on the top and the middle of one side of the belt, and one end of the slider is provided with a slot matching the laser transmitter and the laser receiver, both sides of the slider are provided with protrusions, and both sides of the slot are provided with a first sliding groove slidably connected to the protrusion.
[0016] As a preferred technical solution of the present application, the limiting mechanism also includes two springs, a limiting groove is opened in one side of the slider, and one end of the spring is fixedly connected to one side of the limiting groove, the other end of the spring is fixedly provided with a hemispherical part, and one side of the hemispherical part passes through the slider and connects with the first sliding groove, and the other side of the hemispherical part is fixedly provided with an insertion rod, and one end of the insertion rod passes through the spring and the limiting groove in sequence and is interlaced and connected with the slot.
[0017] As a preferred technical solution of the present application, the positioning portion is a baffle matching the positioning groove, one side of the baffle is hinged to the elevator door through a hinge, and a lock hole is provided on one side of the baffle, and a second slide groove communicating with the first slide groove is provided on the other side of the baffle, and the second slide groove is slidably connected to the protrusion.
[0018] Compared with the prior art, the utility model has the following beneficial effects:
[0019] In the scheme of this application:
[0020] 1. In order to solve the problem that although the existing elevators in the prior art are equipped with anti-pinch devices to prevent accidents, it is not easy to detect dog leashes, children's anti-lost hand ropes, etc., which may lead to safety accidents and low practicality, the present application provides an elevator door that cooperates with a rack. As the elevator door opens and closes, a shifting assembly can be driven to operate. Under the action of the shifting assembly, the transmitting part and the receiving part move up and down. Through the moving transmitting part and the receiving part, it can be detected whether there are foreign objects, especially ropes, to prevent safety accidents, and the cost is low;
[0021] 2. The limiting mechanism can be used in conjunction with the positioning part to lock the transmitting part and the receiving part. If there is a problem with the transmitting part or the receiving part, the operator only needs to open the baffle of the positioning part to remove the transmitting part or the receiving part for replacement or repair. This setting not only makes disassembly and assembly convenient, but also prevents others from removing it, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 A schematic diagram of the structure of the elevator door anti-pinch safety device provided in this application;
[0023] Figure 2 A schematic cross-sectional structure diagram of the elevator door anti-pinch safety device provided in this application;
[0024] Figure 3 A schematic diagram of a partial cross-sectional structure of an elevator door anti-pinch safety device provided in this application;
[0025] Figure 4 A schematic cross-sectional structure diagram of the limit mechanism of the elevator door anti-pinch safety device provided in this application;
[0026] Figure 5 A schematic diagram of the back side of an elevator door of the elevator door anti-pinch safety device provided in this application.
[0027] Indicated in the figure:
[0028] 1. Elevator body;
[0029] 2. Elevator door;
[0030] 3. Transmitter; 301. Laser transmitter;
[0031] 4. Receiving unit; 401. Laser receiver;
[0032] 5. Shifting assembly; 501. first gear; 502. first rotating shaft; 503. second gear; 504. second rotating shaft; 505. pulley; 506. belt;
[0033] 6. Limiting mechanism; 601. Sliding block; 602. Spring; 603. Hemispherical member; 604. Inserting rod;
[0034] 7. Rack;
[0035] 8. Positioning unit; 801. Baffle. DETAILED DESCRIPTION
[0036] 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.
[0037] As described in the background art, although existing elevators are equipped with anti-pinch devices to prevent accidents, it is difficult to detect dog leashes, children's anti-lost hand ropes, etc., which may lead to safety accidents and have low practicality.
[0038] In order to solve this technical problem, the utility model provides an elevator door anti-pinch safety device, which is applied to elevators.
[0039] Specifically, please refer to Figure 1-5 , the elevator door anti-pinch safety device specifically includes:
[0040] An elevator body 1 and two elevator doors 2, the two elevator doors 2 are provided with slots on opposite sides, a transmitting part 3 and a receiving part 4 are respectively arranged in the two slots, a shifting assembly 5 for moving the transmitting part 3 and the receiving part 4 is also arranged in the two slots, and a limiting mechanism 6 is respectively arranged between the two shifting assemblies 5 and the transmitting part 3 and the receiving part 4, a rack 7 matching the shifting assembly 5 is embedded on the base of the elevator body 1, a positioning groove is provided on one side of the slot, and a positioning part 8 is arranged on the positioning groove.
[0041] The elevator door anti-pinch safety device provided by the utility model can drive the shifting component to operate by cooperating with the rack through the elevator door, as the elevator door opens and closes, and under the action of the shifting component, the transmitting part and the receiving part are moved up and down. Through the moving transmitting part and the receiving part, it can be detected whether there are foreign objects, especially ropes, to prevent the occurrence of safety accidents, and the cost is low.
[0042] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.
[0043] 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.
[0044] 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.
[0045] Example 1, please refer to Figure 2-4 An elevator door anti-pinch safety device, whose transmitting part 3 is composed of two laser emitters 301, one laser emitter 301 is located at the top of the slot, and the other laser emitter 301 is located in the middle of the slot, and a slot is opened on the laser emitter 301.
[0046] Please refer to Figure 2-4 An elevator door anti-pinch safety device, wherein the receiving part 4 is composed of two laser receivers 401, one laser receiver 401 is located at the top of the slot, and the other laser receiver 401 is located in the middle of the slot, and the two laser transmitters 301 correspond to the two laser receivers 401 one by one, respectively, and a slot is also provided on the laser receiver 401.
[0047] Embodiment 2 further optimizes the elevator door anti-pinch safety device provided in Embodiment 1. Specifically, Figure 2 As shown, the displacement assembly 5 is composed of a driving part and a displacement part.
[0048] Further, such as Figure 2-3 As shown, the driving part includes a first gear 501, which is located at one side of the bottom end of the slot and meshed with the rack 7. A first rotating shaft 502 is fixed on the first gear 501 and rotatably connected in the slot.
[0049] Embodiment 3 further optimizes the elevator door anti-pinch safety device provided in Embodiment 1 or 2. Specifically, Figure 2-3 As shown, the displacement portion includes a second gear 503, which is meshed and connected to one side of the first gear 501. A second shaft 504 is fixed on the second gear 503, and the second shaft 504 is rotatably connected in the slot, and the top of the slot is also rotatably connected to the second shaft 504.
[0050] Further, such as Figure 2-3 As shown, the displacement portion further includes two pulleys 505 , which are fixedly mounted on the two second rotating shafts 504 , and a belt 506 is provided between the two pulleys 505 .
[0051] Further, such as Figure 2-4As shown, the limiting mechanism 6 includes two sliders 601, which are respectively fixedly mounted on the top and the middle of one side of the belt 506, and one end of the slider 601 is provided with a slot matching the laser transmitter 301 and the laser receiver 401, both sides of the slider 601 are provided with protrusions, and both sides of the slot are provided with a first sliding groove slidably connected to the protrusion.
[0052] Embodiment 4: The elevator door anti-pinch safety device provided in the above embodiments is further optimized, such as Figure 2-4 As shown, the limiting mechanism 6 also includes two springs 602, a limiting groove is opened in one side of the slider 601, and one end of the spring 602 is fixedly connected to one side of the limiting groove, the other end of the spring 602 is fixedly provided with a hemispherical part 603, and one side of the hemispherical part 603 passes through the slider 601 and is connected to the first sliding groove, the other side of the hemispherical part 603 is fixedly provided with an insertion rod 604, and one end of the insertion rod 604 passes through the spring 602 and the limiting groove in sequence and is inserted and connected with the slot.
[0053] Further, such as Figure 2-5 As shown, the positioning portion 8 is a baffle 801 that matches the positioning groove, one side of the baffle 801 is hinged to the elevator door 2 through a hinge, and a lock hole is provided on one side of the baffle 801, and a second slide groove that communicates with the first slide groove is opened on the other side of the baffle 801, and the second slide groove is slidably connected to the protrusion.
[0054] The use process of the elevator door anti-pinch safety device provided by the utility model is as follows:
[0055] As the two elevator doors 2 are opened, the shifting components 5 in the two elevator doors 2 operate. Under the action of the rack 7, the first gear 501 rotates in cooperation with the first rotating shaft 502. The rotation of the first gear 501 can drive the second gear 503 to rotate. The belt 506 rotates in cooperation with the second rotating shaft 504 and the pulley 505. As the belt 506 rotates, the two sliders 601 move downward. The two sliders 601 in one elevator door 2 respectively drive the two laser transmitters 301 to move, and the two sliders 601 in the other elevator door 2 respectively drive the two laser receivers 401 to move. When the two elevator doors 2 are fully opened, the laser transmitter 301 at the top moves to the middle, and the laser transmitter 301 in the middle moves to the bottom, and the laser transmitter 301 and the laser receiver 401 always maintain a corresponding state. The two elevator doors 2 is closed, the laser transmitter 301 and the laser receiver 401 are reset. During the resetting process, the laser transmitter 301 emits a laser beam to detect whether there is any foreign matter, especially a rope, blocking the laser beam. If the laser receiver 401 cannot receive the complete laser beam, it means that there is a foreign matter in the elevator door 2. The elevator door 2 is opened to prevent safety accidents. When the laser transmitter 301 and the laser receiver 401 fail, the operator can open the baffle 801 in the elevator body 1 through an external key. As the baffle 801 separates from the hemispherical part 603, the spring 602 resets the rod 604, and the rod 604 is separated from the laser transmitter 301 or the laser receiver 401. Then, the laser transmitter 301 or the laser receiver 401 can be directly removed for replacement or maintenance, thereby improving practicality.
[0056] 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.
[0057] 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 anti-pinch safety device, characterized in that: The invention comprises an elevator body (1) and two elevator doors (2), wherein the two elevator doors (2) are provided with slots on opposite sides, wherein a transmitting part (3) and a receiving part (4) are respectively arranged in the two slots, wherein a displacement assembly (5) for moving the transmitting part (3) and the receiving part (4) is also arranged in the two slots, wherein a limiting mechanism (6) is respectively arranged between the two displacement assemblies (5) and the transmitting part (3) and the receiving part (4), wherein a rack (7) matching the displacement assembly (5) is embedded on the base of the elevator body (1), wherein a positioning slot is provided on one side of the slot, and a positioning part (8) is arranged on the positioning slot.
2. An elevator door anti-pinch safety device according to claim 1, characterized in that: The emitting part (3) is composed of two laser emitters (301), one of the laser emitters (301) is located at the top of the slot, and the other laser emitter (301) is located in the middle of the slot, and a slot is provided on the laser emitter (301).
3. An elevator door anti-pinch safety device according to claim 2, characterized in that: The receiving part (4) is composed of two laser receivers (401), one of the laser receivers (401) is located at the top of the slot, and the other laser receiver (401) is located in the middle of the slot, and the two laser transmitters (301) correspond to the two laser receivers (401) one by one, respectively, and a slot is also provided on the laser receiver (401).
4. An elevator door anti-pinch safety device according to claim 3, characterized in that: The displacement component (5) consists of a driving part and a displacement part.
5. An elevator door anti-pinch safety device according to claim 4, characterized in that: The driving part comprises a first gear (501), the first gear (501) is located at one side of the bottom end of the slot, and the first gear (501) is meshedly connected with the rack (7), a first rotating shaft (502) is fixedly provided on the first gear (501), and the first rotating shaft (502) is rotatably connected in the slot.
6. An elevator door anti-pinch safety device according to claim 5, characterized in that: The displacement portion comprises a second gear (503), the second gear (503) is meshedly connected to one side of the first gear (501), a second rotating shaft (504) is fixedly provided on the second gear (503), and the second rotating shaft (504) is rotatably connected in the slot, and the top of the slot is also rotatably connected to the second rotating shaft (504).
7. An elevator door anti-pinch safety device according to claim 6, characterized in that: The displacement part further comprises two pulleys (505), the two pulleys (505) are fixedly mounted on the two second rotating shafts (504), and a belt (506) is arranged between the two pulleys (505).
8. An elevator door anti-pinch safety device according to claim 7, characterized in that: The limiting mechanism (6) comprises two sliders (601), the two sliders (601) are respectively fixedly mounted on the top and the middle of one side of the belt (506), and one end of the slider (601) is provided with a slot matching the laser transmitter (301) and the laser receiver (401), both sides of the slider (601) are provided with protrusions, and both sides of the slot are provided with a first sliding groove slidably connected to the protrusion.
9. An elevator door anti-pinch safety device according to claim 8, characterized in that: The limiting mechanism (6) further comprises two springs (602), a limiting groove is provided in one side of the slider (601), and one end of the spring (602) is fixedly connected to one side of the limiting groove, a hemispherical member (603) is fixedly provided at the other end of the spring (602), and one side of the hemispherical member (603) passes through the slider (601) and is connected to the first sliding groove, an insertion rod (604) is fixedly provided at the other side of the hemispherical member (603), and one end of the insertion rod (604) passes through the spring (602) and the limiting groove in sequence and is inserted and connected to the slot.
10. An elevator door anti-pinch safety device according to claim 9, characterized in that: The positioning portion (8) is a baffle (801) matching the positioning groove, one side of the baffle (801) is hinged to the elevator door (2) through a hinge, and a lock hole is provided on one side of the baffle (801), and a second slide groove communicating with the first slide groove is provided on the other side of the baffle (801), and the second slide groove is slidably connected to the protrusion.