Construction elevator safety door
Patent Information
- Application Number
- CN202522675892.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-17
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2035-12-17
AI Technical Summary
[0004]本实用新型的目的是为了解决上述背景技术中提及的现在的防护门包括一体式的门框和安装在门框上的两扇门体,因不能折叠,使得防护门体积比较大,导致防护门在地面运输和运输上楼的过程中需要占用较大的空间,不利于运输的问题
框体一与框体二通过可拆卸连接,不仅便于运输时拆分为多个部件,还便于组装,提升组装效率与门框整体结构的稳定性;
Smart Images

Figure CN224691602U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of elevator safety protection door technology, and in particular to construction elevator safety protection door. Background Technology
[0002] Construction elevators, also known as construction hoists, are elevators used during construction. When in use, a platform needs to be erected between the elevator and the floor for passage. This platform must be equipped with safety doors to prevent workers from falling through the passageway between the platform and the elevator. Currently, most construction elevator safety doors are locked with latches located on the outside of the door, meaning the door can only be opened from the inside, effectively preventing workers from opening it from the inside.
[0003] Current security doors consist of an integrated door frame and two door panels mounted on the frame. Because they cannot be folded, they are relatively large, requiring a significant amount of space for ground transportation and transporting them upstairs, which is inconvenient. Utility Model Content
[0004] The purpose of this utility model is to solve the problem mentioned in the background art that the current protective doors include an integrated door frame and two door panels installed on the door frame. Because they cannot be folded, the protective doors are relatively large in size, which requires a lot of space during ground transportation and transporting them upstairs, which is not conducive to transportation.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: The construction elevator safety door includes a door frame and a door body. The door frame includes a left-right symmetrical frame one and a top-bottom symmetrical frame two. Both ends of the frame one are detachably connected to the frame two. The door body is inserted and installed on the frame one. Support columns are fixed on opposite surfaces of the frame one. Insertion holes are opened on the support columns. Insert rods for inserting into the insertion holes are fixed on the door body.
[0006] Preferably, two symmetrical connecting plates are fixedly connected to both ends of the second frame. The two connecting plates are used for inserting the first frame. Both the first frame and the two connecting plates have through holes. The first frame and the second frame are connected by bolts.
[0007] Preferably, connecting posts are fixed on the upper and lower sides of both frames one, and connecting holes are provided on the connecting posts. Connecting rods that are inserted into the connecting holes are fixed on the frame two.
[0008] Preferably, one end face of the connecting column is in contact with the frame.
[0009] Preferably, a latch is installed on the door body, a latch hole is fixed on the door body for the latch to be inserted, and a handle is installed on the latch.
[0010] Preferably, the handle is rotatably connected to the latch, a locking plate is fixed to the lower side of the handle, and a locking groove for inserting the locking plate is provided on the door body.
[0011] Preferably, a support portion is fixedly connected to the opposite surfaces of the two frame bodies, and a limit hole is provided on the support portion. A limit pin is inserted into the limit hole, and the lower end of the limit pin contacts the side of the open door body.
[0012] Preferably, the limiting hole is inclined.
[0013] Preferably, the support portion is further provided with support holes.
[0014] Compared with the prior art, the present invention has the following beneficial effects: The first frame and the second frame are detachably connected, which not only makes it easy to disassemble into multiple parts during transportation, but also makes it easy to assemble, improving assembly efficiency and the stability of the overall door frame structure; The door body is connected to the door frame by inserting a rod into the hole of the support column. When disassembling, simply move the door body up so that the rod is disengaged from the hole, which facilitates the separate transportation, installation and maintenance of the door body. The handle is rotatably connected to the latch, and the locking plate can fall into the locking groove under gravity. This additional operation not only ensures the safety of the protective door after it is closed, but also improves the ease of operation. The combination of the support, tilting limit hole, and limit pin can effectively limit the door when it is opened to prevent it from closing accidentally, facilitating personnel passage and material transportation, and improving the convenience and safety during use. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0017] Figure 2 This is a schematic diagram showing the separation of frame one and frame two of this utility model.
[0018] Figure 3 For the present utility model Figure 2 Enlarged diagram of point A in the middle.
[0019] Figure 4 This is a schematic diagram of the door body of this utility model.
[0020] Figure 5 For the present utility model Figure 4 Enlarged diagram of point B in the middle.
[0021] Figure 6 This is a schematic diagram of the door opening according to this utility model.
[0022] Figure 7 This is a schematic diagram of the support part of this utility model.
[0023] Drawing number explanation: 1. Door frame; 11. Frame body one; 12. Frame body two; 13. Connecting plate; 14. Through hole; 15. Connecting post; 16. Connecting hole; 17. Connecting rod; 18. Support post; 19. Insertion hole; 2. Door body; 21. Insertion rod; 3. Pin; 31. Handle; 32. Locking plate; 33. Locking groove; 4. Support part; 41. Limiting hole; 42. Limiting pin; 43. Supporting hole; 5. Baffle. Detailed Implementation
[0024] The present invention will now be described in further detail with reference to the accompanying drawings.
[0025] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the present invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.
[0026] Those skilled in the art should understand that in the disclosure of this utility model, the terms "longitudinal", "lateral", "up", "down", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.
[0027] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.
[0028] Please see Figures 1-7The construction elevator safety door includes a door frame 1 and a door body 2. The door frame 1 includes a left-right symmetrical frame body 11 and a top-bottom symmetrical frame body 2 12. Both ends of the frame body 11 are detachably connected to the frame body 2 12. The frame body 11 and the frame body 2 12 are joined end to end to form a rectangle. Both ends of the frame body 2 12 are fixedly connected to two symmetrical connecting plates 13. The two connecting plates 13 are used for inserting the frame body 11. The frame body 11 and the two connecting plates 13 are provided with through holes 14. The frame body 11 and the frame body 2 12 are connected by bolts. The bolts pass through the through holes 14 on the frame body 11 and the frame body 2 12 in sequence and are threaded with nuts, thereby fixing one end of the frame body 11 and one end of the frame body 2 12.
[0029] Furthermore, to facilitate the connection between frame 11 and frame 212, connecting posts 15 are fixed on the upper and lower sides of both frame 11. Two connecting posts 15 are fixedly connected to one frame 11, located on the upper and lower sides, respectively, for installing frame 212. Connecting posts 15 are provided with connecting holes 16. Connecting rods 17 are fixed on frame 212 and inserted into the connecting holes 16. One end face of the connecting post 15 contacts frame 212. By inserting the connecting rod 17 into the connecting hole 16, the upper frame 212 is supported, and the through holes 14 on frame 11 and frame 212 are aligned. The connection between the connecting rod 17 and the connecting hole 16 is beneficial to the stability of the rectangular door frame 1.
[0030] There are two door bodies 2. The two door bodies 2 are plugged into and installed on the frame body 11. Support columns 18 are fixed on opposite sides of the frame body 11. There are two support columns 18 fixed on one frame body 11. Of course, more support columns 18 can be set. The support columns 18 are provided with insertion holes 19. The door body 2 is fixed with a plug rod 21 for inserting into the insertion hole 19.
[0031] During disassembly, first remove the two bolts on the upper side, then remove the upper frame 12 from the frame 11. After removing the upper frame 12, the two door bodies 2 can be moved upwards directly. The insertion rod 21 on the door body 2 will leave the insertion hole 19, thus completing the separation of the door body 2 from the door frame 1. Then, remove the two bolts on the lower side one by one. After removing one bolt, move the frame 11 upwards, remove the other bolt, and finally separate the frame 11 and frame 12. After disassembly, the safety door is divided into multiple frames 11, frames 12 and door bodies 2 for easy transportation.
[0032] A baffle 5 is fixed on the upper frame 2 12. The baffle 5 blocks the door and is used to close and lock the door.
[0033] A latch 3 is installed on the door body 2, and a socket 19 for inserting the latch 3 is fixed on the door body 2. A handle 31 is installed on the latch 3. Both door bodies 2 have circular holes for inserting and moving the latch 3. The latch 3 and handle 31 are existing technologies and will not be described further. To further facilitate locking the two door bodies 2, the handle 31 is rotatably connected to the latch 3. A locking plate 32 is fixed to the lower side of the handle 31. The door body 2 is provided with a locking groove 33 for inserting the locking plate 32. When the latch 3 moves laterally and contacts the circular hole of the door body 2, the latch 3 also inserts into the circular hole on the other door body 2. At this time, the handle 31 is released directly. Under the action of gravity, the locking plate 32 rotates downward and enters the locking groove 33, completing the locking.
[0034] To maintain stability after the two doors 2 are opened, facilitating subsequent movement and transport of goods, support parts 4 are fixedly connected to the opposite faces of the two frame bodies 11. Limiting holes 41 are provided on the support parts 4, and these holes 41 are angled. Limiting pins 42 are inserted into the limiting holes 41, with the lower end of the limiting pins 42 contacting the side of the opened door body 2. The limiting pins 42 are angled and inserted into the limiting holes 41, contacting the opened door body 2, thereby preventing the door body 2 from closing. The support part 4 is also provided with a support hole 43. The limiting pin 42 has two parts with different diameters, the upper diameter is larger than the lower diameter, to prevent the limiting pin 42 from slipping out of the support hole 43.
[0035] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.
Claims
1. A safety door for a construction elevator, characterized in that, include: The door frame (1) includes a left-right symmetrical frame one (11) and a top-bottom symmetrical frame two (12), both ends of the frame one (11) are detachably connected to the frame two (12). The door body (2) is plugged into the frame (11). Support columns (18) are fixed on opposite sides of the frame (11). The support columns (18) have insertion holes (19). The door body (2) has a plug rod (21) for inserting into the insertion holes (19).
2. The construction elevator safety door according to claim 1, characterized in that: Two symmetrical connecting plates (13) are fixedly connected to both ends of the second frame (12). The two connecting plates (13) are used for the insertion of the first frame (11). The first frame (11) and the two connecting plates (13) are provided with through holes (14). The first frame (11) and the second frame (12) are connected by bolts.
3. The construction elevator safety door according to claim 2, characterized in that: Both of the two frame bodies (11) are fixed with connecting posts (15) on their upper and lower sides. The connecting posts (15) are provided with connecting holes (16). The frame body (12) is fixed with a connecting rod (17) that is inserted into the connecting hole (16).
4. The construction elevator safety door according to claim 3, characterized in that: One end face of the connecting column (15) is in contact with the frame (12).
5. The construction elevator safety door according to claim 1, characterized in that: A latch (3) is installed on the door body (2), and a socket (19) for inserting the latch (3) is fixed on the door body (2). A handle (31) is installed on the latch (3).
6. The construction elevator safety door according to claim 5, characterized in that: The handle (31) is rotatably connected to the pin (3), and a locking plate (32) is fixed on the lower side of the handle (31). The door body (2) is provided with a locking groove (33) into which the locking plate (32) is inserted.
7. The construction elevator safety door according to claim 1, characterized in that: The two frames (11) are fixedly connected to the opposite sides by a support (4). A limit hole (41) is provided on the support (4). A limit pin (42) is inserted into the limit hole (41). The lower end of the limit pin (42) contacts the side of the open door (2).
8. The construction elevator safety door according to claim 7, characterized in that: The limiting hole (41) is set at an angle.
9. The construction elevator safety door according to claim 7, characterized in that: The support part (4) is also provided with a support hole (43).