Elevator shaft protection structure
By designing a first support frame, a second support frame, and a protective net unfolding assembly, and using a drive assembly to move the sliding block, the problem of difficult installation and disassembly of the elevator shaft protective structure was solved, improving construction efficiency and convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG DEJIAN GRP CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-07-14
AI Technical Summary
The existing protective structure of elevator shafts is difficult to install and dismantle, affecting construction efficiency and making them inconvenient to relocate.
The structure includes a first support frame, a second support frame, and a protective net deployment assembly. A drive assembly is used to move the slide to deploy or retract the protective net, simplifying the installation and disassembly process.
It enables convenient installation and disassembly of elevator shaft protection structures, improves construction efficiency, and facilitates reuse.
Smart Images

Figure CN224495880U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction protection equipment technology, and in particular to elevator shaft protection structure. Background Technology
[0002] During building construction, installing protective structures for elevator shafts is of paramount importance for construction safety. When installing elevators, protective structures need to be installed inside the elevator shaft to prevent parts from falling and injuring workers inside the shaft.
[0003] Many existing elevator shafts have openings on both sides, which are usually staggered. The protection of such elevator shafts is usually achieved by installing protective nets inside the shaft. However, it is difficult to deploy and fix the protective nets, and the installation and dismantling of other protective structures are also quite troublesome, which affects construction efficiency and makes it inconvenient to relocate them. Utility Model Content
[0004] The purpose of this utility model is to provide a protective structure for elevator shafts, which can facilitate installation and disassembly by workers, effectively improve construction efficiency, and facilitate turnover.
[0005] To achieve the above and other related objectives, this utility model provides an elevator shaft protection structure, comprising: a first support frame, a second support frame, and a protective net deployment assembly. The bottom of the first support frame is provided with a first stop assembly, and the end of the first support frame away from the first stop assembly is provided with a first baffle. The first stop assembly abuts against the inner wall of an opening on one side of the elevator shaft, and the first baffle abuts against the outer wall of the opening on one side of the elevator shaft. The bottom of the second support frame is provided with a second stop assembly, and the end of the second support frame away from the second stop assembly is provided with a second baffle. The second stop assembly abuts against the inner wall of an opening on the other side of the elevator shaft, and the second baffle abuts against the outer wall of the opening on the other side of the elevator shaft. The protective net deployment assembly includes two deployment frames. One deployment frame is detachably and fixedly connected to a first mounting frame on the top of the first support frame, and the other deployment frame is detachably and fixedly connected to a second mounting frame on the top of the second support frame. The two deployment frames are located on the same horizontal plane and are arranged along the width direction of the elevator shaft. Two slide blocks are slidably installed on the top of each deployment frame along the extension direction of the deployment frame. A drive assembly is provided on the deployment frame and is drivenly connected to the two slide blocks to drive the two slide blocks to move towards or away from each other. A deployment rod is detachably installed on the two slide blocks located on the same side of the two deployment frames, and a protective net is detachably installed between the two deployment rods.
[0006] In one example of the elevator shaft protection structure of this utility model, the first support frame includes two first bottom rods and one first cross rod. The two ends of the first cross rod are respectively fixedly connected to the middle of the surfaces of the two first bottom rods that are opposite to each other. One end of the two first bottom rods is fixedly connected to the first baffle. The first baffle assembly is fixedly installed at the bottom of the two first bottom rods.
[0007] In one example of the elevator shaft protection structure of this utility model, the first stop rod assembly includes two first stop rods and two first inclined rods. The top ends of the two first stop rods are respectively fixedly connected to the bottom surfaces of the two first bottom rods, and the two ends of the first inclined rods are respectively fixedly connected to the bottom ends of the first stop rods and the ends of the first bottom rods away from the first baffle.
[0008] In one example of the elevator shaft protection structure of this utility model, the second support frame includes two second bottom rods and one second cross rod. The two ends of the second cross rod are respectively fixedly connected to the middle of the surfaces of the two second bottom rods that are opposite to each other. One end of the two second bottom rods is fixedly connected to the second baffle. The second baffle assembly is fixedly installed at the bottom of the two second bottom rods.
[0009] In one example of the elevator shaft protection structure of this utility model, the second stop rod assembly includes two second stop rods and two second inclined rods. The top ends of the two second stop rods are respectively fixedly connected to the bottom surfaces of the two second bottom rods, and the two ends of the second inclined rods are respectively fixedly connected to the bottom ends of the second stop rods and the ends of the second bottom rods away from the second baffle.
[0010] In one example of the elevator shaft protection structure of this utility model, the bottom of the two unfolding frames is provided with several insert rods, and the two unfolding frames are respectively connected and fixed to the first mounting frame and the second mounting frame through several insert rods.
[0011] In one example of the elevator shaft protection structure of this utility model, a lead screw is rotatably installed inside the unfolding frame along the extension direction of the unfolding frame. The top of the unfolding frame is provided with a sliding groove that cooperates with the lead screw. A threaded sleeve is fixedly installed at the bottom of each of the two sliding blocks. The two threaded sleeves are slidably connected to the sliding groove. The two threaded sleeves are respectively threaded to the lead screw, and the thread directions of the lead screw and the two threaded sleeves are opposite. The driving assembly is drivenly connected to the lead screw and is used to drive the lead screw to rotate.
[0012] In one example of the elevator shaft protection structure of this utility model, the drive assembly includes a housing, which is fixedly installed in the middle of one side wall of the unfolding frame. A worm gear and a worm are rotatably installed inside the housing. The worm gear and the worm mesh. One end of the worm facing the unfolding frame passes through the unfolding frame and is fixedly installed with a first gear. A second gear is fixedly installed on the lead screw. The first gear meshes with the second gear. A rocker arm is provided at the end of the worm gear's shaft.
[0013] In one example of the elevator shaft protection structure of this utility model, a lead screw support is provided in the unfolding frame on both sides of the second gear, and the lead screw is rotatably connected to the two lead screw supports.
[0014] In one example of the elevator shaft protection structure of this utility model, the top of the slide is provided with an arc-shaped groove, which is matched with the end of the unfolding rod and fixedly connected by bolts.
[0015] In one example of the elevator shaft protection structure of this utility model, the unfolding rod is provided with several hooks, and the protective net is installed and connected to several of the hooks.
[0016] This utility model relates to an elevator shaft protection structure. A first support frame and a second support frame are respectively fitted to openings on both sides of the elevator shaft. The first and second support frames are installed at the bottom of the two openings. Then, unfolding frames are installed on a first mounting bracket at the top of the first support frame and a second mounting bracket at the top of the second support frame. The two ends of two unfolding rods are connected to four sliding blocks on the two unfolding frames. The drive components on the two unfolding frames simultaneously drive the sliding blocks to move in opposite directions. When the four sliding blocks reach the ends of the two unfolding frames, the protective net is unfolded. This utility model facilitates installation and disassembly by workers, effectively improving construction efficiency and facilitating turnover. Attached Figure Description
[0017] Figure 1 This is a top view of an embodiment of the elevator shaft protection structure of this utility model;
[0018] Figure 2 This is an installation diagram of an embodiment of the elevator shaft protection structure of this utility model;
[0019] Figure 3 This is a partial structural schematic diagram of an embodiment of the elevator shaft protection structure of this utility model;
[0020] Figure 4 This is a side view of the first support frame in one embodiment of the elevator shaft protection structure of this utility model;
[0021] Figure 5This is a top view of the first support frame in one embodiment of the elevator shaft protection structure of this utility model;
[0022] Figure 6 This is a side view of the second support frame in one embodiment of the elevator shaft protection structure of this utility model;
[0023] Figure 7 This is a cross-sectional view of the drive assembly in one embodiment of the elevator shaft protection structure of this utility model. Figure 1 ;
[0024] Figure 8 This is a cross-sectional view of the drive assembly in one embodiment of the elevator shaft protection structure of this utility model. Figure 2 .
[0025] Component designation:
[0026] 100 First support frame; 110 First stop rod assembly; 111 First stop rod; 112 First diagonal rod; 120 First baffle; 130 First bottom rod; 140 First crossbar; 150 First mounting frame; 200 Second support frame; 210 Second stop rod assembly; 211 Second stop rod; 212 Second diagonal rod; 220 Second baffle; 230 Second mounting frame; 300 Protective net; 400 Protective net unfolding assembly; 410 Unfolding frame; 411 Insert rod; 412 Lead screw; 413 Slide groove; 414 Lead screw bracket; 420 Slide seat; 421 Screw sleeve; 430 Drive assembly; 431 Housing; 432 Worm gear; 433 Worm; 434 First gear; 435 Second gear; 436 Rocker arm; 440 Unfolding rod; 441 Hook; 500 Elevator shaft. Detailed Implementation
[0027] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. It should also be understood that the terminology used in the embodiments of this utility model is for describing specific implementation schemes and not for limiting the scope of protection of this utility model. Test methods in the following embodiments that do not specify specific conditions are generally performed under conventional conditions or according to the conditions recommended by the respective manufacturers.
[0028] When numerical ranges are given in the embodiments, it should be understood that, unless otherwise specified in this invention, both endpoints of each numerical range and any value between the two endpoints may be selected. Unless otherwise defined, all technical and scientific terms used in this invention, as well as the prior art known to those skilled in the art and the description of this invention, may be implemented using any prior art methods, equipment, and materials similar to or equivalent to those in the embodiments of this invention.
[0029] Please see Figures 1 to 8 This utility model provides an elevator shaft protection structure, comprising: a first support frame 100, a second support frame 200, and a protective net deployment assembly 400. The first support frame 100 has a first stop assembly 110 at its bottom and a first baffle 120 at its end away from the first stop assembly 110. The first stop assembly 110 abuts against the inner wall of an opening on one side of the elevator shaft 500, and the first baffle 120 abuts against the outer wall of the opening on one side of the elevator shaft 500. The second support frame 200 has a second stop assembly 210 at its bottom and a second baffle 220 at its end away from the second stop assembly 210. The second stop assembly 210 abuts against the inner wall of an opening on the other side of the elevator shaft 500, and the second baffle 220 abuts against the outer wall of the opening on the other side of the elevator shaft 500. The protective net deployment assembly 300 includes two deployment frames 410. One deployment frame 410 is detachably and fixedly connected to the first mounting bracket 150 on the top of the first support frame 100, and the other deployment frame 410 is detachably and fixedly connected to the second mounting bracket 230 on the top of the second support frame 200. The two deployment frames 410 are located on the same horizontal plane and are arranged along the width direction of the elevator shaft 500. Two slide blocks 420 are slidably installed on the top of each deployment frame 410 along the extension direction of the deployment frame 410. A drive assembly 430 is provided on the deployment frame 410. The drive assembly 430 is drivenly connected to the two slide blocks 420 and is used to drive the two slide blocks 420 to move towards or away from each other. A deployment rod 440 is detachably installed on the two slide blocks 420 located on the same side of the two deployment frames 410. The protective net 300 is detachably installed between the two deployment rods 440.
[0030] This invention installs a first support frame 100 and a second support frame 200 at the bottom of openings on both sides of an elevator shaft 500. The first stop assembly 110 and the first baffle 120 abut against the inner and outer walls of one side of the elevator shaft 500 opening, thus securing the first support frame 100 at the opening. Similarly, the second stop assembly 210 and the second baffle 220 abut against the inner and outer walls of the other side of the elevator shaft 500 opening, thus securing the second support frame 200 at the opening. Then, unfolding frames 410 are installed on the first mounting frame 150 at the top of the first support frame 100 and the second mounting frame 230 at the top of the second support frame 200. The two ends of two unfolding rods 440 are connected to four sliding blocks 420 on the two unfolding frames 410. The drive assembly 430 on the two unfolding frames 410 simultaneously drives the sliding blocks 420 to move in opposite directions. When the four sliding blocks 420 move to the ends of the two unfolding frames 410, the protective net 300 is unfolded. This invention facilitates installation and disassembly by workers, effectively improves construction efficiency, and also makes it easy to recycle.
[0031] Please see Figure 4 and Figure 5 In one example of the elevator shaft protection structure of this utility model, the first support frame 100 includes two first bottom rods 130 and one first crossbar 140. The two ends of the first crossbar 140 are fixedly connected to the middle of the surfaces of the two first bottom rods 130, which are respectively disposed opposite to each other. One end of each of the two first bottom rods 130 is fixedly connected to the first baffle 120. The first baffle assembly 110 is fixedly installed at the bottom of the two first bottom rods 130. The first baffle assembly 110 includes two first baffles 111 and two first diagonal rods 112. The top ends of the two first baffles 111 are fixedly connected to the bottom surfaces of the two first bottom rods 130, and the two ends of the first diagonal rods 112 are fixedly connected to the bottom ends of the first baffles 111 and the ends of the first bottom rods 130 away from the first baffle 120, respectively.
[0032] Please see Figure 6 In one example of the elevator shaft protection structure of this utility model, the second support frame 200 includes two second bottom rods and one second cross rod. The two ends of the second cross rod are fixedly connected to the middle of the surfaces of the two second bottom rods, which are respectively disposed opposite to each other. One end of each of the two second bottom rods is fixedly connected to the second baffle 220. The second baffle assembly 210 is fixedly installed at the bottom of the two second bottom rods. The second baffle assembly 210 includes two second baffles 211 and two second diagonal rods 212. The top ends of the two second baffles 211 are fixedly connected to the bottom surfaces of the two second bottom rods, respectively. The two ends of the second diagonal rods 212 are fixedly connected to the bottom ends of the second baffles 211 and the ends of the second bottom rods away from the second baffle 220, respectively.
[0033] Please see Figure 3 , Figure 7 and Figure 8 In one example of the elevator shaft protection structure of this utility model, the bottom of each of the two unfolding frames 410 is provided with a plurality of insert rods 411. The two unfolding frames 410 are respectively inserted and fixed to the first mounting frame 150 and the second mounting frame 230 through the plurality of insert rods 411. A lead screw 412 is rotatably installed inside the unfolding frame 410 along the extension direction of the unfolding frame 410. The top of the unfolding frame 410 is provided with a sliding groove 413 that cooperates with the lead screw 412. A threaded sleeve 421 is fixedly installed at the bottom of each of the two sliding blocks 420. The two threaded sleeves 421 are slidably connected to the sliding groove 413. The two threaded sleeves 421 are respectively threadedly connected to the lead screw 412, and the thread directions of the lead screw 412 and the two threaded sleeves 421 are opposite. The drive assembly 430 is drivenly connected to the lead screw 412 and is used to drive the lead screw 412 to rotate. The drive assembly 430 includes a housing 431, which is fixedly installed in the middle of one side wall of the unfolding frame 410. A worm gear 432 and a worm 433 are rotatably mounted inside the housing 431, meshing with each other. One end of the worm 433 facing the unfolding frame 410 passes through the frame and is fixedly mounted with a first gear 434. A second gear 435 is fixedly mounted on a lead screw 412, meshing with the first gear 434 and the second gear 435. A rocker arm 436 is provided at the end of the shaft of the worm gear 432. A lead screw support 414 is provided on each side of the second gear 435 within the unfolding frame 410, and the lead screw 412 is rotatably connected to both lead screw supports 414. The control joystick 436 drives the worm gear 432 to rotate, the worm gear 432 drives the worm 433 to rotate, the worm 433 drives the first gear 434 to rotate, the first gear 434 drives the second gear 435 to rotate, the second gear 435 drives the lead screw 412 to rotate, and the lead screw 412 drives the two lead sleeves 421 to move the slide block 420 relative to each other or in opposite directions.
[0034] Please see Figure 3 In one example of the elevator shaft protection structure of this utility model, the top of the slide 420 is provided with an arc-shaped groove, which cooperates with the end of the unfolding rod 440 and is fixedly connected by bolts. The unfolding rod 440 is provided with a plurality of hooks 441, and the protective net 300 is installed and connected to a plurality of the hooks 441.
[0035] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
Claims
1. A protective structure for elevator shafts, characterized in that, include: A first support frame, the bottom of the first support frame is provided with a first stop rod assembly, the end of the first support frame away from the first stop rod assembly is provided with a first baffle, the first stop rod assembly abuts against the inner wall of the opening on one side of the elevator shaft, and the first baffle abuts against the outer wall of the opening on one side of the elevator shaft; The second support frame has a second stop rod assembly at its bottom and a second baffle at one end of the second support frame away from the second stop rod assembly. The second stop rod assembly abuts against the inner wall of the opening on the other side of the elevator shaft, and the second baffle abuts against the outer wall of the opening on the other side of the elevator shaft. A protective net deployment assembly includes two deployment frames. One deployment frame is detachably and fixedly connected to a first mounting frame on the top of a first support frame, and the other deployment frame is detachably and fixedly connected to a second mounting frame on the top of a second support frame. The two deployment frames are located on the same horizontal plane and are arranged along the width direction of the elevator shaft. Two slide blocks are slidably mounted on the top of each deployment frame along its extension direction. A drive assembly is provided on each deployment frame and is drivenly connected to the two slide blocks to drive the two slide blocks to move towards or away from each other. A deployment rod is detachably mounted on the two slide blocks located on the same side of the two deployment frames, and a protective net is detachably mounted between the two deployment rods.
2. The elevator shaft protection structure as described in claim 1, characterized in that, The first support frame includes two first base rods and one first crossbar. The two ends of the first crossbar are fixedly connected to the middle of the surfaces of the two first base rods respectively. One end of the two first base rods is fixedly connected to the first baffle. The first baffle assembly is fixedly installed at the bottom of the two first base rods.
3. The elevator shaft protection structure as described in claim 2, characterized in that, The first stop assembly includes two first stop rods and two first inclined rods. The top ends of the two first stop rods are fixedly connected to the bottom surfaces of the two first bottom rods, and the two ends of the first inclined rods are fixedly connected to the bottom ends of the first stop rods and the ends of the first bottom rods away from the first baffle, respectively.
4. The elevator shaft protection structure as described in claim 1, characterized in that, The second support frame includes two second bottom rods and one second cross rod. The two ends of the second cross rod are fixedly connected to the middle of the surfaces of the two second bottom rods respectively. One end of the two second bottom rods is fixedly connected to the second baffle. The second baffle assembly is fixedly installed at the bottom of the two second bottom rods.
5. The elevator shaft protection structure as described in claim 4, characterized in that, The second stop assembly includes two second stop rods and two second inclined rods. The top ends of the two second stop rods are fixedly connected to the bottom surfaces of the two second bottom rods, and the two ends of the second inclined rods are fixedly connected to the bottom ends of the second stop rods and the ends of the second bottom rods away from the second baffle, respectively.
6. The elevator shaft protection structure as described in claim 1, characterized in that, The bottom of each of the two unfolding frames is provided with several insert rods, and the two unfolding frames are respectively connected and fixed to the first mounting frame and the second mounting frame through several insert rods.
7. The elevator shaft protection structure as described in claim 1, characterized in that, A lead screw is rotatably installed inside the unfolding frame along its extension direction. The top of the unfolding frame is provided with a sliding groove that mates with the lead screw. A threaded sleeve is fixedly installed at the bottom of each of the two slide blocks. The two threaded sleeves are slidably connected to the sliding groove. The two threaded sleeves are threadedly connected to the lead screw, and the thread directions of the lead screw and the two threaded sleeves are opposite. The drive assembly is drivenly connected to the lead screw and is used to drive the lead screw to rotate.
8. The elevator shaft protection structure as described in claim 7, characterized in that, The drive assembly includes a housing, which is fixedly installed in the middle of one side wall of the unfolding frame. A worm gear and a worm are rotatably installed inside the housing. The worm gear and the worm mesh. One end of the worm facing the unfolding frame passes through the unfolding frame and is fixedly installed with a first gear. A second gear is fixedly installed on the lead screw. The first gear meshes with the second gear. A rocker arm is provided at the end of the worm gear's shaft.
9. The elevator shaft protection structure as described in claim 1, characterized in that, The top of the slide block is provided with an arc-shaped groove, which is matched with the end of the unfolding rod and fixedly connected by bolts.
10. The elevator shaft protection structure as described in claim 1, characterized in that, The unfolding rod is equipped with several hooks, and the protective net is installed and connected to several of the hooks.