Articulated Wing-Type Adaptive Protective Frame for Elevator Shafts

Abstract

This utility model discloses a hinged wing-type adaptive protective frame for elevator shafts, comprising: a support structure including a retractable inner strut and a pair of hinged supports, the two ends of which are respectively hinged to the pair of hinged supports, and the hinged supports being fixedly connected to the wall of the elevator shaft via a first fixing member; a protective net comprising three sequentially arranged parts, each part including a rectangular frame and a wire mesh disposed in the middle of the rectangular frame, the rectangular frame being enclosed by a pair of retractable side frames and a pair of fixed side frames, and each pair of adjacent parts being rotatably connected through two adjacent side frames to allow the protective net to switch between an unfolded state and a folded state; at least one rectangular frame is secured to the support structure, and the rectangular frames of each of the three parts are fixedly connected to the wall of the elevator shaft via a second fixing member. This utility model can adapt to elevator shafts of different sizes, has high assembly and disassembly efficiency, and extends the service life.

Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment technology, and in particular to an articulated wing-type adaptive protective frame for elevator shafts. Background Technology

[0002] Traditional elevator shaft protective frames are mostly constructed from fixed-size wooden templates or steel pipes, which have three major drawbacks: 1. Poor size adaptability: They cannot match the width of different elevator shaft openings (commonly ranging from 1.5m to 3.5m), requiring customization of multiple specifications; 2. Low assembly and disassembly efficiency: There are many bolt tightening points, and a single installation takes more than 30 minutes; 3. High turnover loss: Wooden templates are scrapped after an average of 3 uses, and steel welded frames are prone to deformation during handling. Utility Model Content

[0003] One object of this invention is to solve at least the aforementioned problems and / or defects, and to provide at least the advantages described below.

[0004] One objective of this invention is to provide an articulated wing-type self-adaptive protective frame for elevator shafts, which can adapt to elevator shafts of different sizes, has high assembly and disassembly efficiency, reduces the storage size of the protective frame, and extends its service life.

[0005] To achieve these objectives and other advantages according to the present invention, a hinged wing-type adaptive protective frame for elevator shafts is provided, comprising:

[0006] The support structure includes a telescopic inner strut and a pair of hinged supports, the two ends of the inner strut being respectively hinged to the pair of hinged supports, and the hinged supports being fixedly connected to the wall of the elevator shaft by a first fixing member.

[0007] The protective netting comprises three parts arranged in sequence. Each part includes a rectangular frame and a wire mesh disposed in the middle of the rectangular frame. The rectangular frame is enclosed by a pair of retractable side frames and a pair of fixed side frames. The retractable side frames of the three parts are parallel to each other. Each pair of adjacent parts is rotatably connected by two adjacent side frames, so that the protective netting can switch between an unfolded state and a folded state.

[0008] When the protective net is in the unfolded state, at least one rectangular frame of the protective net is secured to the supporting structure, and the rectangular frames of each of the three parts are fixedly connected to the wall of the elevator shaft by a second fastener.

[0009] Preferably, in the articulated wing-type elevator shaft adaptive protection frame, the inner support rod includes an inner rod and an outer cylinder. The inner rod is provided with multiple positioning holes, and the outer cylinder is provided with a spring pin. The outer cylinder is slidably sleeved on the outside of the inner rod, and the spring pin is insertably inserted into one of the positioning holes.

[0010] Preferably, in the articulated wing-type elevator shaft adaptive protection frame, the outer cylinder is provided with a graduated rack.

[0011] Preferably, in the articulated wing-type adaptive protective frame for elevator shafts, the articulated support includes a base plate and a pair of side uprights. The pair of side uprights are connected to both sides of the base plate, forming a U-shaped groove with the base plate. The end of the inner support rod is located in the U-shaped groove and is pivotally connected to the pair of side uprights via a pivot. The end of the inner support rod is provided with an angle limiting hole. The side uprights are provided with multiple angle adjustment holes. The multiple angle adjustment holes are distributed along an arc centered on the pivot. With the pivot as the center, the articulated support is adjusted so that one of the angle adjustment holes is aligned with the angle limiting hole. A fixing pin passes through one of the angle adjustment holes and the angle limiting hole to limit the angle of the articulated support relative to the inner support rod.

[0012] Preferably, in the articulated wing-shaped elevator shaft adaptive protective frame, one angle adjustment hole is provided at 5° intervals.

[0013] Preferably, in the articulated wing-type adaptive protective frame for elevator shafts, one arm of an L-shaped angle iron is fixedly connected to the back of the articulated support, and the other arm of the L-shaped angle iron extends to the outside of the articulated support and is fastened to the wall of the elevator shaft.

[0014] Preferably, in the articulated wing-shaped elevator shaft adaptive protective frame, the two adjacent frames of every two adjacent parts are rotatably connected by bidirectional hinges.

[0015] Preferably, in the articulated wing-type adaptive protective frame for elevator shafts, at least a portion of the rectangular frame of the protective net has a slot, the inner support rod is inserted into the slot and extends to the outside of the slot and is hinged to the articulated support, the slot is provided with a locking hole, and a positioning pin is inserted into the locking hole to lock the inner support rod in the slot.

[0016] Preferably, in the articulated wing-type adaptive protective frame for elevator shafts, the support structure includes multiple inner struts arranged parallel to each other.

[0017] This utility model has at least the following beneficial effects:

[0018] This utility model provides a hinged wing-type adaptive protective frame for elevator shafts, comprising: a support structure including a retractable inner support rod and a pair of hinged supports, the two ends of the inner support rod being hinged to the pair of hinged supports respectively, and the hinged supports being fixedly connected to the wall of the elevator shaft via a first fixing member; and a protective net comprising three sequentially arranged parts, each part including a rectangular frame and a wire mesh disposed in the middle of the rectangular frame, the rectangular frame being enclosed by a pair of retractable side frames and a pair of fixed side frames, the retractable side frames of the three parts being parallel to each other, wherein each two adjacent parts are rotatably connected by two adjacent side frames, so that the protective net can switch between an unfolded state and a folded state; wherein, when the protective net is in the unfolded state, at least one part of the rectangular frame of the protective net is secured to the support structure, and the rectangular frames of each of the three parts are fixedly connected to the wall of the elevator shaft via a second fixing member. The hinged wing-type adaptive protective frame for elevator shafts provided by this utility model can adapt to elevator shafts of different sizes, has high assembly and disassembly efficiency, reduces the storage size of the protective frame, and extends its service life.

[0019] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the articulated wing-shaped adaptive protective frame for elevator shafts in this utility model.

[0021] Figure 2 This is a schematic diagram of the structure of the internal support rod in the elevator shaft in this utility model.

[0022] Figure 3 This is a schematic diagram of the protective netting structure in this utility model.

[0023] Figure 4 This is a schematic diagram of the outermost part of the protective netting in this utility model.

[0024] Figure 5 for Figure 1 A schematic diagram of the structure of part A of the inner strut.

[0025] Figure 6 This is a schematic diagram of the hinged support in this utility model.

[0026] Figure 7 This is a side view of the hinged support in this utility model.

[0027] Figure 8 This is a schematic diagram of the structure of the locking part between the fixed frame and the inner support rod in this utility model. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0029] like Figures 1 to 8 As shown, this utility model provides an articulated wing-type adaptive protective frame for elevator shafts, comprising: a support structure including a retractable inner support rod 1 and a pair of hinged supports 2, the two ends of the inner support rod 1 being hinged to the pair of hinged supports 2 respectively, and the hinged supports 2 being fixedly connected to the wall of the elevator shaft 3 by a first fixing member; a protective net 4 comprising three parts arranged in sequence, each part including a rectangular frame and a wire mesh 9 disposed in the middle of the rectangular frame, the rectangular frame being enclosed by a pair of retractable frame edges 8 and a pair of fixed frame edges 7, the retractable frame edges 8 of the three parts being parallel to each other, wherein each two adjacent parts are rotatably connected by two adjacent frame edges, so that the protective net 4 can switch between an unfolded state and a folded state; wherein, when the protective net 4 is in the unfolded state, at least one part of the rectangular frame of the protective net 4 is secured to the support structure, and the rectangular frames of each of the three parts are fixedly connected to the wall of the elevator shaft by a second fixing member.

[0030] When installing the protective frame in the elevator shaft, first adjust the length of the inner support rod 1 according to the depth of the elevator shaft. Then, use the first fixing component to fix the hinged support 2 to the wall of the elevator shaft, ensuring it is firm and secure. Since the end of the inner support rod 1 is hinged to the hinged support 2, when the elevator shaft wall is not perpendicular, the hinged support 2 can tilt and rotate relative to the inner support rod 1, allowing the back of the hinged support 2 to fully conform to and abut against the elevator shaft wall, ensuring a stable connection between the support structure and the elevator shaft wall. Next, adjust the length of the telescopic frame 8 according to the depth of the elevator shaft, matching the length of the three telescopic frame 8 sections to the depth of the elevator shaft. Then, extend the two outermost sections outwards, so that the two outermost sections extend relative to the middle section 5, until the outermost frame of the two outermost sections 6 contacts the wall of the elevator shaft, thus covering the entire elevator shaft with the protective net 4. At least one rectangular frame of the protective net 4 is fastened to the supporting structure, and the rectangular frames of the three parts are fixedly connected to the wall of the elevator shaft by the second fastener, so as to ensure a stable connection between the protective net 4 and the supporting structure and a stable connection between the protective net 4 and the wall of the elevator shaft.

[0031] When the protective frame is not installed, the support structure includes an inner strut 1 and a hinged support 2. The three parts of the protective net 4 are in a folded state and can be stacked, making the overall storage volume of the protective frame small and easy to handle.

[0032] During disassembly, only the first fixing component, the second fixing component, and the locking connection between the protective net 4 and the supporting structure need to be removed to remove the protective frame from the elevator shaft. This design extends the service life of the protective frame.

[0033] Traditional elevator shaft protective frames are constructed using fixed-size wooden templates or steel pipes, requiring customization of multiple specifications, and are time-consuming to assemble and disassemble with high turnover losses. This utility model, through its retractable inner support rod 1 and adjustable protective net 4 frame, achieves rapid adaptation to elevator shafts of different sizes, significantly improving assembly and disassembly efficiency and reducing material waste.

[0034] In a preferred embodiment, in the articulated wing-type elevator shaft adaptive protective frame, the inner support rod 1 includes an inner rod 11 and an outer cylinder 12. The inner rod 11 is provided with a plurality of positioning holes 14, and the outer cylinder 12 is provided with a spring pin 13. The outer cylinder 12 is slidably sleeved on the outside of the inner rod 11, and the spring pin 13 is insertably and removably inserted through one of the positioning holes 14.

[0035] The inner rod 11 has equidistant positioning holes 14, spaced 200mm apart, with a length ranging from 1.8m to 3.2m (8 adjustable levels). The outer cylinder 12 is quickly locked by a spring pin 13. The adjustment process is as follows: pull out the pin, pull it to the target hole position, and the pin will automatically reset. The entire adjustment process takes less than 20 seconds.

[0036] In a preferred embodiment, the outer cylinder 12 of the articulated wing-type elevator shaft adaptive protective frame is provided with a graduated rack.

[0037] During the adjustment of the inner support rod 1, pull out the outer cylinder 12 of the inner support rod 1 according to the depth of the elevator shaft (e.g., 2.5m) and observe the rack scale to the target position (e.g., "2500mm").

[0038] In a preferred embodiment, in the articulated wing-type elevator shaft adaptive protective frame, the articulated support 2 includes a base plate 16 and a pair of side uprights 17. The pair of side uprights 17 are connected to both sides of the base plate 16, forming a U-shaped groove with the base plate 16. The end of the inner support rod 1 is located in the U-shaped groove and is pivotally connected to the pair of side uprights 17 via a pivot 15. The end of the inner support rod 1 is provided with an angle limiting hole. The side uprights 17 are provided with a plurality of angle adjustment holes 18. The plurality of angle adjustment holes 18 are distributed along an arc centered on the pivot 15. With the pivot 15 as the center, the articulated support 2 is adjusted so that one of the angle adjustment holes 18 is aligned with the angle limiting hole. A fixing pin 19 passes through one of the angle adjustment holes 18 and the angle limiting hole to limit the angle of the articulated support 2 relative to the inner support rod 1.

[0039] Rotate the hinge support 2 to match the wall. The purpose of this adjustment is to ensure the back of the hinge support 2 is tightly pressed against the wall, facilitating a stable connection between the support structure and the wall. When there is no angular deviation in the wall, the inner strut 1 is perpendicular to the wall after the hinge support 2 is pressed against it. When there is an angular deviation in the wall, the hinge support 2 rotates relative to the inner strut 1, keeping its back pressed against the wall. The inner strut 1 has an angle of less than 90° relative to the wall, which is equivalent to the hinge support 2 having an angle of 90° minus the aforementioned angle of the inner strut 1. During the adjustment of the hinge support 2, align one of the angle adjustment holes 18 with the angle limiting hole and insert the fixing pin 19 to limit the positional relationship between the inner strut 1 and the hinge support 2, preventing further swaying between them and improving the stability of the connection between the support structure and the wall.

[0040] In a preferred embodiment, in the articulated wing-shaped elevator shaft adaptive protective frame, the plurality of angle adjustment holes 18 are provided at 5° intervals.

[0041] The hinged support 2 is provided with an angle adjustment hole 18. The inclination angle of the hinged support 2 relative to the vertical plane is 0°-30°, in increments of 5°, to achieve a stable connection between the support structure and the wall under different construction conditions.

[0042] In a preferred embodiment, in the articulated wing-type adaptive protective frame for elevator shafts, one arm of an L-shaped angle iron is fixedly connected to the back of the articulated support 2, and the other arm of the L-shaped angle iron extends to the outside of the articulated support 2 and is fastened to the wall of the elevator shaft.

[0043] The L-shaped angle iron welded to the back of the hinged support 2 is snapped onto the concrete beam and hammered to ensure a tight fit, forming an anti-overturning lever arm to prevent further swaying between the inner strut 1 and the hinged support 2, thereby improving the stability of the connection between the support structure and the wall.

[0044] In a preferred embodiment, in the articulated wing-shaped adaptive protective frame for elevator shafts, the two adjacent frames of every two adjacent sections are rotatably connected by a bidirectional hinge 10.

[0045] The two adjacent borders of each pair of adjacent sections can be rotated from 0° to 180° by a two-way hinge 10 to ensure that the protective net 4 can cover the elevator shaft when it is in the unfolded state.

[0046] The retractable frame 8 is implemented by a sliding rail structure. For example, the retractable frame 8 includes an upper frame and a lower frame. The lower frame is provided with a sliding rail, and the upper frame is slidably set in the sliding rail. The length of the retractable frame 8 can be adjusted by pulling the upper frame.

[0047] The retractable frame 8 between two adjacent parts is connected by a two-way hinge 10. The installation part of the two-way hinge 10 avoids the connection part between the upper and lower frames of the retractable frame 8. For example, the two-way hinge 10 can be installed on the upper frame.

[0048] In a preferred embodiment, in the articulated wing-type adaptive protective frame for elevator shafts, at least a portion of the rectangular frame of the protective net 4 has a slot 21, the inner support rod 1 is inserted into the slot 21 and extends to the outside of the slot 21 and is hinged to the articulated support 2, the slot 21 is provided with a locking hole, and a positioning pin 20 is inserted into the locking hole to lock the inner support rod 1 in the slot 21.

[0049] The rectangular frame that is securely connected to the inner support rod 1 is determined based on its position. For example, the inner support rod 1 is placed below the middle part 5, and the fixed frame 7 of the rectangular frame in the middle part has a slot 21. The inner support rod 1 is inserted into the slot 21 and extends to the outside of the slot 21, hinged to the hinge support 2. The slot 21 is provided with a locking hole, and the positioning pin 20 is inserted into the locking hole to lock the inner support rod 1 in the slot 21, thereby achieving a stable connection between the protective net 4 and the supporting structure.

[0050] In a preferred embodiment, the articulated wing-shaped elevator shaft adaptive protective frame includes a plurality of inner struts 1 arranged parallel to each other.

[0051] The number of inner struts 1 can be set according to the support requirements.

[0052] The following embodiment is provided to further illustrate the articulated wing-shaped elevator shaft adaptive protective frame and its working process.

[0053] The articulated wing-type elevator shaft adaptive protective frame mainly includes a support structure and a protective net 4. The support structure includes a retractable inner support rod 1. The inner support rod 1 has a multi-stage pin locking mechanism. The inner rod 11 has equidistant positioning holes 14 (200mm spacing), and its length can cover 1.8m-3.2m (8 adjustable levels). The outer cylinder 12 is quickly locked by a spring pin 13. The adjustment process is as follows: pull out the pin, pull it to the target hole position, and the pin automatically resets. The adjustment time is <20 seconds. The protective net 4 is composed of a folded wire mesh 9 and a square steel frame, which can be rotated from 0° to 180° via a two-way hinge 10. The retractable frame 8 has a built-in sliding rail telescopic structure, allowing the width of the protective net 4 to be adjusted (e.g., 1.2m-2.8m), linked with the inner support rod 1. The articulated support 2 has angle adjustment holes 18 (0°-30° tilt angle, in 5° increments), and is fixed by pins. L-shaped angle irons are welded to the back and then fastened to the concrete beam to form an anti-overturning lever.

[0054] The work process is as follows:

[0055] Step 1: Install the internal support rod

[0056] 1. Adjust the length

[0057] Based on the elevator shaft depth (e.g., 2.5m), pull out the outer cylinder of the inner support rod and observe the rack scale to the target position (e.g., "2500mm"). Pull out the spring pin and stretch the inner support rod to the corresponding hole position. The pin will automatically reset and lock, ensuring a secure and loose fit.

[0058] 2. Fixed hinge support

[0059] Tilt the hinged support to an angle that matches the shear wall (e.g., 15°), select the appropriate setting through the angle adjustment hole, and insert the pin to secure it. Use the L-shaped angle iron welded to the back to fasten it onto the concrete beam, forming an anti-overturning lever arm, and hammer it in to ensure a tight fit.

[0060] Step 2: Installation of the flip-up protective netting

[0061] 1. Deploy the protective netting

[0062] Unfold the folded wire mesh to 180° along the two-way hinges and check that the mesh surface of each section is flat and free from twisting. Adjust the mesh width to the target size by sliding the guide rail structure of the square steel frame according to the depth of the elevator shaft.

[0063] 2. Connect the inner support rod

[0064] Align the slots of the protective net frame with the fixed ends of the inner support rods, insert the positioning pins, and lock them in place.

[0065] Step 3: Secure the protective netting on both sides

[0066] 1. Adjustment and Fixation

[0067] Expand the outer two sections of the protective netting to fit flush against the elevator shaft wall, and adjust the width using the sliding rail telescopic structure to completely cover the elevator shaft. Drill holes at the corresponding locations on the shear wall, and secure the protective netting frame with expansion bolts or pins, ensuring there is no wobbling.

[0068] 2. Gap inspection

[0069] Inspect the joints between the protective netting and the wall and internal support rods to ensure there are no gaps greater than 10mm.

[0070] Step 4: Final Acceptance

[0071] 1. Security Testing

[0072] Shake the protective frame vigorously to confirm that all pins, bolts, and studs are secure.

[0073] Simulated load test: Place a 50kg weight in the center of the protective net and observe whether the structure deforms or makes abnormal noises.

[0074] 2. Clean up the site

[0075] Remove debris generated during installation and affix installation acceptance signs.

[0076] This protective frame utilizes a pin-type telescopic internal support rod and a sliding rail flip-up protective net, enabling rapid installation by a single person in 8 minutes. The hinged support features a 30° adaptive tilt angle, and angle iron buckles ensure seamless protection. The main body has a lifespan of ≥600 cycles, and its folded volume is ≤1m³. 3 Compared to traditional solutions, this method reduces labor costs by 70%, eliminates safety risks, and increases overall efficiency by 3 times. The device is readily available, simple and quick to assemble, has a high turnover rate, is easy to operate, highly adaptable, saves time, has a strong technological foundation for widespread application, offers significant economic benefits, saves labor, and has high social benefits.

[0077] Although embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. It can be applied to various fields suitable for this utility model. Other modifications can be readily implemented by those skilled in the art. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and examples shown and described herein.

Claims

1. A hinged wing-type adaptive protective frame for elevator shafts, characterized in that, include: The support structure includes a telescopic inner strut and a pair of hinged supports, the two ends of the inner strut being respectively hinged to the pair of hinged supports, and the hinged supports being fixedly connected to the wall of the elevator shaft by a first fixing member. The protective net comprises three parts arranged in sequence. Each part includes a rectangular frame and a wire mesh disposed in the middle of the rectangular frame. The rectangular frame is enclosed by a pair of retractable side frames and a pair of fixed side frames. The retractable side frames of the three parts are parallel to each other. Each pair of adjacent parts is rotatably connected by two adjacent side frames, so that the protective net can switch between an unfolded state and a folded state. When the protective net is in the unfolded state, at least one rectangular frame of the protective net is secured to the supporting structure, and the rectangular frames of each of the three parts are fixedly connected to the wall of the elevator shaft by a second fastener.

2. The articulated wing-type adaptive protective frame for elevator shafts as described in claim 1, characterized in that, The inner support rod includes an inner rod and an outer cylinder. The inner rod is provided with multiple positioning holes, and the outer cylinder is provided with a spring pin. The outer cylinder is slidably sleeved on the outside of the inner rod, and the spring pin is insertably inserted into one of the positioning holes.

3. The articulated wing-shaped self-adaptive protective frame for elevator shafts as described in claim 2, characterized in that, The outer cylinder is provided with a graduated rack.

4. The articulated wing-type adaptive protective frame for elevator shafts as described in claim 1, characterized in that, The hinge support includes a base plate and a pair of side plates. The pair of side plates are connected to both sides of the base plate and form a U-shaped groove with the base plate. The end of the inner support rod is located in the U-shaped groove and is pivotally connected to the pair of side plates via a pivot. The end of the inner support rod is provided with an angle limiting hole. The side plates are provided with multiple angle adjustment holes. The multiple angle adjustment holes are distributed along an arc centered on the pivot. With the pivot as the center, the hinge support is adjusted so that one of the angle adjustment holes is aligned with the angle limiting hole. A fixing pin passes through one of the angle adjustment holes and the angle limiting hole to limit the angle of the hinge support relative to the inner support rod.

5. The articulated wing-type adaptive protective frame for elevator shafts as described in claim 4, characterized in that, The plurality of angle adjustment holes are provided at 5° intervals.

6. The articulated wing-type adaptive protective frame for elevator shafts as described in claim 1, characterized in that, The back of the hinge support is fixedly connected to one arm of the L-shaped angle iron, and the other arm of the L-shaped angle iron extends to the outside of the hinge support and is fastened to the wall of the elevator shaft.

7. The articulated wing-type adaptive protective frame for elevator shafts as described in claim 1, characterized in that, The two adjacent borders of each pair of adjacent sections are rotated together by a two-way hinge.

8. The articulated wing-type adaptive protective frame for elevator shafts as described in claim 1, characterized in that, At least one portion of the rectangular frame of the protective net has a slot, the inner support rod is inserted into the slot and extends to the outside of the slot and is hinged to the hinge support, the slot is provided with a locking hole, and a positioning pin is inserted into the locking hole to lock the inner support rod in the slot.

9. The articulated wing-type adaptive protective frame for elevator shafts as described in claim 1, characterized in that, The support structure includes multiple internal struts arranged parallel to each other.

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