Elevator shaft clamp-type edge protection door

Abstract

The application provides an elevator shaft clamping type edge protection door, aiming at solving the problems of traditional elevator shaft protection door difficult to assemble and disassemble, and not firm fixed. The protection door comprises a protection door body and two groups of clamping assemblies, and automatic clamping and disassembly are realized through cooperation of limiting rods, sliding rods, swing rods and mounting seats. The main features include: simple assembly and disassembly, multiple turnover use, adaptation to various sizes of elevator shaft openings, and strong practicality. When in use, the protection door is pushed into the inside of the elevator shaft, the swing rod drives the sliding rod to move, the limiting rod cooperates with the fixed pipe to clamp the walls on both sides of the elevator shaft, and fixing is realized. When disassembled, the positioning pin is removed, and the protection door can be pulled out. The protection door can be widely applied to the elevator shaft protection field, improves work efficiency, and reduces safety risks.

Description

Technical Field

[0001] This invention relates to the field of building safety equipment, and more particularly to a clamp-type edge protection door for elevator shafts. Background Technology

[0002] In building construction, edge protection is required for unfinished elevator shafts. Currently, the common practice is to make a single mesh safety door based on the shaft opening dimensions and fix it to both sides of the opening with expansion bolts. Alternatively, steel pipe frames can be assembled into a grid pattern using fasteners, with a toe board at the bottom and a dense safety net suspended above, placed horizontally across the shaft opening for safety. While these methods provide adequate safety, the safety doors must be completely removed during ground construction. This poses a risk of accidental entry and falls. Furthermore, the expansion bolts need to be removed during subsequent wall plastering, which is labor-intensive, time-consuming, energy-inefficient, and has poor reusability. Therefore, a clamp-type edge protection door for elevator shafts is proposed, effectively solving these problems.

[0003] Utility model application CN201520497177.7 relates to an elevator shaft safety door, comprising a rectangular safety frame; the rectangular safety frame includes an upper safety frame and a lower safety frame, which are connected by a hinge shaft; the upper safety frame is provided with an upper safety beam; the lower safety frame is provided with a lower safety beam; an upper sliding sleeve is provided on the upper safety beam; an L-shaped fixing member is connected to the upper sliding sleeve; the upper sliding sleeve is provided with a threaded hole; a locking bolt is provided in the threaded hole; a lower sliding sleeve is provided on the lower safety beam; an L-shaped fixing member is connected to the lower sliding sleeve; a threaded hole is provided on the lower sliding sleeve; a locking bolt is provided in the threaded hole.

[0004] However, the elevator shaft safety door described in the aforementioned patent requires a complex installation process, increasing installation time and cost, and may require professional installers. Furthermore, the complex installation process may also lead to installation errors, affecting the protective effect. Summary of the Invention

[0005] The purpose of this invention is to provide a clamp-type edge protection door for elevator shafts, in order to solve the problems mentioned in the background art above:

[0006] (1) How to improve the structure so that the edge protection door of the elevator shaft can be placed after the opening of the elevator shaft and automatically engage with the elevator shaft wall, making it easy to install and remove.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A type of elevator shaft clamp-type edge protection door;

[0009] The device includes a protective door body and two sets of locking components. The width of the protective door body is greater than the width of the elevator shaft door. The locking components include a limiting rod, a sliding rod, a swing rod, and a mounting base. One end of the mounting base is fixedly connected to the reverse side of the protective door body. The mounting base has a moving hole inside, and the sliding rod is located in the moving hole of the mounting base. The sliding rod can slide back and forth along the axial direction of the moving hole. The side wall of the sliding rod is provided with a rack portion, and the direction of the rack portion is consistent with the axial direction of the moving hole. The limiting rod is hinged to the mounting base located away from the protective door body. The rotation axis of the limiting rod is vertical. The starting end of the limiting rod is provided with teeth, and the direction of the teeth at the starting end of the limiting rod corresponds to the rotation direction of the limiting rod. The starting end of the limiting rod penetrates the side wall of the mounting base and extends into the moving hole. The teeth at the starting end of the limiting rod mesh with the rack portion on the sliding rod. The starting end of the swing rod is hinged to the end of the sliding rod near the protective door body. The middle part of the swing rod is hinged to the mounting base. The end of the swing rod extends to the position between the reverse side of the protective door body and the limiting rod.

[0010] The maximum distance between the mounting bases of the two sets of locking components is less than the width of the elevator shaft door, and the minimum distance between the ends of the swing arms of the two sets of locking components is greater than the width of the elevator shaft door.

[0011] Based on the above technical solution, the present invention can be further improved as follows.

[0012] Furthermore, the locking assembly also includes a positioning pin. The mounting base has a first pin hole communicating with the moving hole, and the sliding rod sidewall has a second pin hole. The positioning pin can pass through the first pin hole of the mounting base and extend into the second pin hole of the sliding rod. When the positioning pin is engaged with the first pin hole and the second pin hole, the maximum distance between the limiting rods of the two sets of locking assemblies is greater than the width of the elevator shaft door.

[0013] Furthermore, a third pin hole is also provided on the side wall of the sliding rod. The third pin hole is located on the side away from the body of the protective door relative to the second pin hole. The positioning pin can also penetrate the first pin hole of the mounting base and extend into the third pin hole of the sliding rod. When the positioning pin is engaged with the first pin hole and the third pin hole, the maximum distance between the limiting rods of the two sets of locking components is less than the width of the elevator shaft door.

[0014] Furthermore, a waist-shaped hole is opened at the end of the sliding rod near the protective door body. The beginning end of the swing rod extends into the waist-shaped hole of the sliding rod to achieve hinge connection with the end of the sliding rod. The length direction of the waist-shaped hole is consistent with the width direction of the elevator shaft door.

[0015] Furthermore, it also includes a fixing tube, which is fixedly connected to the reverse side of the protective door body. The mounting base of the fastening component is fixedly connected to the fixing tube, thereby achieving a fixed connection between the end of the mounting base and the reverse side of the protective door body.

[0016] Furthermore, a waistline plate is horizontally provided in the middle of the protective door body, and a fixing pipe is fixedly connected to the reverse side of the waistline plate of the protective door body.

[0017] Furthermore, the bottom of the protective door is equipped with a kick plate.

[0018] With this structure, the entire elevator shaft clamp-type edge protection door is pushed from the elevator entrance into the elevator shaft. The end of the swing arm gradually contacts the elevator shaft wall, and the swing arm gradually drives the sliding rod to move away from the door body. The teeth at the beginning of the limiting rod mesh with the rack on the sliding rod. The maximum distance between the limiting rods of the two sets of clamping components is greater than the width of the elevator shaft door. The limiting rods of the two sets of clamping components cooperate with the fixing pipe to clamp the walls on both sides of the elevator shaft, thus fixing the entire elevator shaft clamp-type edge protection door to the front side of the elevator shaft door.

[0019] When dismantling is required, the positioning pins of the two sets of locking components can be removed, and the entire elevator shaft clamp-type edge protection door can be pulled out of the elevator shaft from the elevator entrance to the outside of the elevator shaft. The limit rod is subjected to the action of the elevator shaft wall, and the limit rod gradually rotates in the opposite direction until the maximum distance between the limit rods of the two sets of locking components is less than the width of the elevator shaft door. At this time, the elevator shaft clamp-type edge protection door can be completely separated from the elevator shaft, and the dismantling operation can be completed.

[0020] The advantages of this elevator shaft clamp-type edge protection door are: easy and simple installation and dismantling, no need to use expansion bolts to fix it to the wall, and multiple uses. It can be matched with elevator shaft openings of various sizes, is highly practical, and can be recycled and reused. Attached Figure Description

[0021] Figure 1 This is a diagram showing the usage status of an embodiment of the clamp-type edge protection door for elevator shafts.

[0022] Figure 2 This is a top view of the usage state diagram of this elevator shaft clamp-type edge protection door embodiment (the positioning pin of the clamping component is omitted in the figure).

[0023] Figure 3 This is a top view and a cross-sectional view of an embodiment of the elevator shaft clamp-type edge protection door.

[0024] Figure 4 yes Figure 3 Enlarged view of part A.

[0025] Explanation of the labels in the diagram:

[0026] Protective door body - 100; kick plate - 110; waistline plate - 120; fixing pipe - 200; fastening assembly - 300; mounting base - 310; moving hole - 311; first pin hole - 312; sliding rod - 320; rack part - 321; waist-shaped hole - 322; second pin hole - 323; third pin hole - 324; limit rod - 330; swing rod - 340; positioning pin - 350; elevator shaft door - 410; elevator shaft wall - 420. Detailed Implementation

[0027] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] The terms “vertical,” “horizontal,” “left,” “right,” and similar expressions used in this document are for illustrative purposes only and do not represent the only possible implementation.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] Please see Figures 1 to 4 .

[0031] This elevator shaft clamp-type edge protection door includes a protection door body 100, a fixing pipe 200, and two sets of clamping components 300.

[0032] In this embodiment, the protective door body 100 is made from leftover steel bars, steel plates, and finished steel mesh from the construction site. The width of the protective door body 100 is greater than the width of the elevator shaft door 410. The bottom of the protective door body 100 is equipped with a kick plate 110, which is painted with black and yellow warning paint. The main body of the device is sheet-like, and the entire structure is painted with yellow warning paint (except for the kick plate 110). A waistline plate 120 is installed at the waistline, on which logos can be painted. When uniformly placed, it can greatly improve the site's appearance. It is safe and reliable during use, has an aesthetically pleasing overall effect, reduces manpower and material resources, and improves work efficiency.

[0033] The fixing tube 200 is horizontally welded and fixed to the reverse side of the protective door body 100, with both ends of the fixing tube 200 being flush with the width of the protective door body 100.

[0034] The locking assembly 300 includes a limiting rod 330, a sliding rod 320, a positioning pin 350, a swing rod 340, and a mounting base 310. One end of the mounting base 310 is fixedly fitted to the fixing tube 200 through a three-way structure, thereby fixing the end of the mounting base 310 to the reverse side of the protective door body 100. The mounting base 310 has a moving hole 311 inside, and the axial direction of the moving hole 311 is consistent with the positive and negative directions of the protective door body 100. The sliding rod 320 is located in the moving hole 311 of the mounting base 310, and the sliding rod 320 can slide back and forth along the axial direction of the moving hole 311. The side wall of the sliding rod 320 is provided with a rack portion 321, and the direction of the rack portion 321 is consistent with the axial direction of the moving hole 311.

[0035] The limiting rod 330 is hinged to the mounting base 310 located away from the protective door body 100. The rotation axis of the limiting rod 330 is vertical. The starting end of the limiting rod 330 is provided with teeth. The direction of the teeth at the starting end of the limiting rod 330 corresponds to the rotation direction of the limiting rod 330. The starting end of the limiting rod 330 penetrates the side wall of the mounting base 310 and extends into the moving hole 311. The teeth at the starting end of the limiting rod 330 mesh with the rack portion 321 on the sliding rod 320.

[0036] The sliding rod 320 has a waist-shaped hole 322 at one end near the protective door body 100. The swing rod 340 is generally arc-shaped. Part of the swing rod 340 is located in the moving hole 311 of the fixed tube 200 and the mounting base 310. The beginning end of the swing rod 340 extends into the waist-shaped hole 322 of the sliding rod 320 to achieve hinge connection with the end of the sliding rod 320. The length direction of the waist-shaped hole 322 is consistent with the width direction of the elevator shaft door 410. The middle part of the swing rod 340 is hinged to the mounting base 310. The end of the swing rod 340 extends to the position between the reverse side of the protective door body 100 and the limiting rod 330.

[0037] The maximum distance between the mounting bases 310 of the two sets of locking components 300 is less than the width of the elevator shaft door 410, and the minimum distance between the ends of the swing arms 340 of the two sets of locking components 300 is greater than the width of the elevator shaft door 410.

[0038] The mounting base 310 has a first pin hole 312 that communicates with the moving hole 311. The sliding rod 320 has a second pin hole 323 and a third pin hole 324 on its side wall. The positioning pin 350 can pass through the first pin hole 312 of the mounting base 310 and extend into the second pin hole 323 of the sliding rod 320. When the positioning pin 350 is engaged with the first pin hole 312 and the second pin hole 323, the limiting rod 330 is parallel to the protective door body 100. The limiting rods 330 of the two sets of locking components 300 are located on the rear side of the elevator shaft wall 420. The maximum distance between the limiting rods 330 of the two sets of locking components 300 is greater than the width of the elevator shaft door 410.

[0039] The third pin hole 324 is located on the side away from the protective door body 100 relative to the second pin hole 323. The positioning pin 350 can also penetrate the first pin hole 312 of the mounting base 310 and extend into the third pin hole 324 of the sliding rod 320. When the positioning pin 350 is engaged with the first pin hole 312 and the third pin hole 324, the maximum distance between the limiting rods 330 of the two sets of locking components 300 is less than the width of the elevator shaft door 410.

[0040] Before use, the positioning pins 350 of the two sets of locking components 300 can be removed, or the positioning pins 350 can be matched with the first pin hole 312 and the third pin hole 324 to make the maximum distance between the limiting rods 330 of the two sets of locking components 300 less than the width of the elevator shaft door 410.

[0041] In use, the entire elevator shaft clamp-type edge protection door is pushed from the elevator entrance into the elevator shaft, with the back of the protection door body 100 facing the elevator shaft. During this process, the end of the swing rod 340 gradually contacts the elevator shaft wall 420, and the swing rod 340 gradually drives the sliding rod 320 to move away from the protection door body 100. The teeth at the beginning of the limiting rod 330 mesh with the rack portion 321 on the sliding rod 320. The limiting rod 330 gradually rotates to the maximum rotation stroke of the swing rod 340, swinging 60-70°. At this time, the limiting rods 330 of the two sets of clamping components 300 are located behind the elevator shaft wall 420. Parallel to the protective door body 100, the maximum distance between the limiting rods 330 of the two sets of locking components 300 is greater than the width of the elevator shaft door 410. The limiting rods 330 of the two sets of locking components 300 cooperate with the fixing tube 200 to clamp the elevator shaft walls 420 on both sides, so that the elevator shaft clamp-type edge protection door is fixed to the front side of the elevator shaft door 410. Finally, the positioning pin 350 can penetrate the first pin hole 312 of the mounting base 310 and extend into the second pin hole 323 of the sliding rod 320. The positioning pin 350 cooperates with the first pin hole 312 and the second pin hole 323 to fix the angle of the limiting rod 330 and prevent the limiting rod 330 from flipping over later.

[0042] When dismantling is required, the positioning pins 350 of the two sets of locking components 300 can be removed, and the entire elevator shaft clamp-type edge protection door can be pulled out from the elevator entrance of the elevator shaft to the outside of the elevator shaft. The limiting rod 330 is acted upon by the elevator shaft wall 420, and the limiting rod 330 gradually rotates in the opposite direction until the maximum distance between the limiting rods 330 of the two sets of locking components 300 is less than the width of the elevator shaft door 410. At this point, the elevator shaft clamp-type edge protection door can be completely separated from the elevator shaft, and the dismantling operation can be completed.

[0043] The above description is only one embodiment of the present invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the principle of the present invention, and these should also be considered to fall within the protection scope of the present invention.

Claims

1. A clamp-type edge protection door for elevator shafts, characterized in that: The system includes a protective door body (100) and two sets of locking components (300). The width of the protective door body (100) is greater than the width of the elevator shaft door (410). The locking components (300) include a limiting rod (330), a sliding rod (320), a swing rod (340), and a mounting base (310). One end of the mounting base (310) is fixedly connected to the reverse side of the protective door body (100). A moving hole (311) is opened inside the mounting base (310). The sliding rod (320) is located in the moving hole (311) of the mounting base (310). The sliding rod (320) can slide back and forth along the axial direction of the moving hole (311). A rack portion (321) is provided on the side wall of the sliding rod (320). The direction of the rack portion (321) is consistent with the axial direction of the moving hole (311). The limiting rod (330)... The limit rod (330) is hinged to the mounting base (310) located away from the protective door body (100). The rotation axis of the limit rod (330) is vertical. The beginning end of the limit rod (330) is provided with teeth. The direction of the teeth at the beginning end of the limit rod (330) corresponds to the rotation direction of the limit rod (330). The beginning end of the limit rod (330) penetrates the side wall of the mounting base (310) and extends into the moving hole (311). The teeth at the beginning end of the limit rod (330) mesh with the rack part (321) on the sliding rod (320). The beginning end of the swing rod (340) is hinged to the end of the sliding rod (320) near the protective door body (100). The middle part of the swing rod (340) is hinged to the mounting base (310). The end of the swing rod (340) extends to the position between the reverse side of the protective door body (100) and the limit rod (330). The maximum distance between the mounting bases (310) of the two sets of fastening components (300) is less than the width of the elevator shaft door (410), and the minimum distance between the ends of the swing arms (340) of the two sets of fastening components (300) is greater than the width of the elevator shaft door (410). The locking assembly (300) also includes a positioning pin (350). The mounting base (310) has a first pin hole (312) communicating with the moving hole (311). The sliding rod (320) has a second pin hole (323) on its side wall. The positioning pin (350) can pass through the first pin hole (312) of the mounting base (310) and extend into the second pin hole (323) of the sliding rod (320). When the positioning pin (350) is engaged with the first pin hole (312) and the second pin hole (323), the maximum distance between the limiting rods (330) of the two sets of locking assemblies (300) is greater than the width of the elevator shaft door (410). The sliding rod (320) also has a third pin hole (324) on its side wall. The third pin hole (324) is located away from the protective door body (100) relative to the second pin hole (323). The positioning pin (350) can also penetrate the first pin hole (312) of the mounting base (310) and extend into the third pin hole (324) of the sliding rod (320). When the positioning pin (350) is engaged with the first pin hole (312) and the third pin hole (324), the maximum distance between the limiting rods (330) of the two sets of locking components (300) is less than the width of the elevator shaft door (410). The sliding rod (320) has a waist-shaped hole (322) at the end near the protective door body (100). The beginning end of the swing rod (340) extends into the waist-shaped hole (322) of the sliding rod (320) to achieve hinge connection with the end of the sliding rod (320). The length direction of the waist-shaped hole (322) is consistent with the width direction of the elevator shaft door (410).

2. The elevator shaft clamp-type edge protection door according to claim 1, characterized in that: It also includes a fixing tube (200), which is fixedly connected to the back of the protective door body (100). The end of the mounting base (310) of the clamping assembly (300) is fixedly connected to the fixing tube (200) to achieve a fixed connection between the end of the mounting base (310) and the back of the protective door body (100).

3. The elevator shaft clamp-type edge protection door according to claim 2, characterized in that: A waistline plate (120) is horizontally provided in the middle of the protective door body (100), and a fixing pipe (200) is fixedly connected to the back of the waistline plate (120) of the protective door body (100).

4. The elevator shaft clamp-type edge protection door according to claim 1, characterized in that: The bottom of the protective door body (100) is equipped with a kick plate (110).

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