Elevator shaft guard

Abstract

This application relates to an elevator shaft protection device, belonging to the field of elevator shaft protection. It includes a lifting rail pre-embedded in the inner wall of the shaft; a support component including a support frame and a support bracket connected to the support frame, the support bracket abutting against a floor beam; and lifting lugs on the support frame. A moving component includes a moving block movably disposed outside the support frame, sliding along the lifting rail; the lifting rail has a positioning groove for receiving the moving block. A protection component includes a protective rotating ring, a protective rope, and a protective airbag. The protective rotating ring is rotatably disposed within the support frame; one end of the protective rope is attached to the protective rotating ring, and the other end is attached to the protective airbag, which is used to cushion and absorb falling personnel. This application has the advantages of eliminating the need for multiple installations, allowing the protection device to be raised layer by layer, thus improving overall construction efficiency; and in the event of a fall, the protective airbag cushions and absorbs the impact, improving the protection of construction personnel.

Description

Technical Field

[0001] This application relates to the field of elevator shaft protection technology, and in particular to an elevator shaft protection device. Background Technology

[0002] With the rapid development of China's construction industry and the increasing number of construction sites, construction safety accidents are also on the rise. Among these accidents, falls from heights due to inadequate or improper protection of pre-reserved openings are frequent. Government authorities attach great importance to construction safety management and require construction companies to effectively implement safety controls. During construction, because other processes take a long time, elevator shafts can pose a significant safety hazard of falls from heights.

[0003] In related technologies, protective devices are usually installed inside elevator shafts. Traditionally, scaffolding is erected inside the elevator shaft, and then the scaffolding is used as a support for the protective net to fix the net to the scaffolding.

[0004] However, the thin safety net has limited protective capabilities and is ineffective in protecting people from falls. Furthermore, as the construction floors increase in height, materials such as steel pipes need to be transported to the shaft floor by floor, and scaffolding needs to be raised to be flush with the floor slab beams of the current floor. After construction is completed, the scaffolding needs to be dismantled piece by piece, requiring the prolonged use of tower cranes or hoists. This process is not only cumbersome to set up and dismantle, but also occupies tower cranes and other equipment for a considerable amount of time, thus affecting the overall construction progress and efficiency. Summary of the Invention

[0005] In order to address the problems of limited protective capacity of safety nets, poor personal protection for falling personnel, cumbersome scaffolding erection and dismantling processes, and the long time required to occupy tower cranes and other equipment, thus affecting the overall construction progress and efficiency, this application provides an elevator shaft protection device.

[0006] The elevator shaft protection device provided in this application adopts the following technical solution:

[0007] An elevator shaft protection device includes:

[0008] Lifting slide rail, which is pre-embedded in the inner wall of the shaft;

[0009] A support mechanism includes a support component and a moving component. The support component includes a support frame and a support bracket. The support bracket is connected to the support frame and abuts against a floor beam. The support frame is provided with lifting lugs for connecting the support frame to a lifting device. The moving component includes a moving block that is movably connected to the outside of the support frame. The lifting rail is provided with a positioning groove for receiving the moving block.

[0010] The protective mechanism includes a protective component housed within a support frame. The protective component includes a protective rotating ring, protective ropes, and a protective airbag. The protective rotating ring is rotatably connected within the support frame. Several protective ropes are provided, with one end of each rope connected to the protective rotating ring and the other end connected to the protective airbag. The protective airbag is used to catch and cushion falling personnel.

[0011] By adopting the above technical solution, after the support mechanism and the protective mechanism are assembled in the shaft, the moving block is placed in the lifting slide rail. Then, as construction progresses, the lifting equipment is connected to the support frame through the lifting lugs and drives the entire device to rise and move along the lifting slide rail. When the moving block moves to align with the positioning slot, the moving block automatically extends into the positioning slot, realizing the relative fixation between the support frame and the lifting slide rail. The entire protective device can be raised without reassembly or disassembly, reducing the time occupied by the lifting equipment and thus improving the overall construction progress and efficiency. If construction personnel accidentally fall into the shaft, the protective airbag will cushion the fall and absorb the impact force generated by the faller's own weight. The rotating setting of the protective ring relative to the support frame allows the faller to be protected when they accidentally fall. Due to the combined action of the protective airbag and the protective rope, the faller's own weight generates a component force in the horizontal direction. This component force can drive the protective ring to rotate relative to the support frame, further relieving the force and cushioning the fall, thereby reducing the injury to the faller and improving the protection capability for the faller.

[0012] Preferably, it also includes a cooperating component, which includes a connecting rope and a guide wheel. The lifting lug is movably mounted on the support frame in an inverted "U" shape. One end of the connecting rope is mounted on the lifting lug. The guide wheel is mounted on the support frame. The connecting rope is wound around the guide wheel, and the end of the connecting rope away from the lifting lug is connected to the moving block.

[0013] By adopting the above technical solution, after the lifting equipment is connected to the lifting lug, the lifting lug will move upward during lifting. Under the connection of the connecting rope, the lifting lug will cause the moving block to rotate relative to the support frame and cause the moving block to disengage from the lifting slide rail.

[0014] Preferably, the end of the lifting lug is provided with a limiting plate and a counterweight, the counterweight and the limiting plate are respectively disposed on the upper and lower sides of the support frame. When the lifting lug is in its natural state, the limiting plate abuts against the upper side of the support frame; when the lifting lug is in the lifting state, the counterweight abuts against the lower side of the support frame.

[0015] By adopting the above technical solution, in the natural state, the lifting lug is pulled downward relative to the support frame by the weight of the counterweight and the lifting lug itself, so that the limiting plate abuts against the upper side of the support frame. The limiting plate keeps the lifting lug and the support frame connected at all times. When the lifting lug is in the lifting state, the limiting plate rises accordingly until the counterweight abuts against the lower side of the support frame. The counterweight and the limiting plate work together to limit the movement trajectory and movement distance of the lifting lug relative to the support frame.

[0016] Preferably, the support frame includes a first bracket, one end of which is fixedly connected to the support frame, and the end of the first bracket away from the support frame is hinged with an abutment support foot. The first bracket has a storage slot for storing the abutment support foot, and when the abutment support foot extends out of the storage slot, the abutment support foot abuts against the floor beam.

[0017] By adopting the above technical solution, the lifting equipment lifts and moves the support frame upward. When the abutment foot abuts against the side wall of the floor beam, the abutment foot rotates and enters the storage slot. When the support frame continues to move to the next construction layer, the abutment foot automatically rotates out of the storage slot under the action of the torsion spring and abuts against the upper side of the floor beam. The abutment foot cooperates with the first bracket to further support the support frame.

[0018] Preferably, the protective mechanism further includes a buffer assembly, which includes a buffer spring and a buffer block. The buffer block is connected to the buffer spring, and the end of the buffer spring away from the buffer block is located inside the protective rotating ring. The end of the protective rope away from the protective airbag is connected to the buffer block.

[0019] By adopting the above technical solution, if a construction worker accidentally falls into the shaft, the protective airbag will inflate immediately after bearing a large amount of gravity, catching the falling worker and reducing the impact of the fall. At the same time, the inflation and deployment of the protective airbag, as well as the weight of the falling worker, will cause the protective rope to deform. The pulling of the protective rope will cause the buffer block to move. Under the elastic force of the buffer spring, it will help to decompose and absorb the impact of the falling worker.

[0020] Preferably, the buffer assembly further includes a buffer slider, and the protective rotating ring has a circumferentially formed pressure relief groove for the buffer slider to be placed and slide, and the end of the buffer spring away from the buffer block is fixedly connected to the buffer slider.

[0021] The support frame is provided with an auxiliary component for connecting the protective airbag, and the auxiliary component is used to prevent the protective airbag from rotating.

[0022] The single protective rope is connected to one end of the protective airbag and the other end of the protective rope connected to the buffer block, which are offset radially along the protective swivel.

[0023] Preferably, a wedge is provided on the groove wall of the pressure relief groove and located in the middle of the pressure relief groove. The wedge divides the pressure relief groove into a placement groove and a pressure relief groove. In the natural state, the buffer slider is located in the placement groove and abuts against the wedge surface of the wedge. When the protective mechanism is under force, the buffer slider slides into the pressure relief groove.

[0024] By adopting the above technical solution, if the weight of the falling person is large, under the action of the falling person's weight, due to the connection of the auxiliary components, the protective airbag drives the protective rope to tend to fall with the falling person. At this time, the protective rope drives the buffer slider to slide along the pressure relief groove and enter the pressure relief groove. The sliding of the buffer slider further decomposes the impact of the falling person's fall, reducing the personal injury caused to the falling person.

[0025] Preferably, it also includes a reinforcing component, the reinforcing component including an abutment block, the abutment block being movably disposed within the support frame, and after the abutment block moves away from the protective rotating ring, the abutment block abuts against the inner wall of the wellbore.

[0026] Preferably, the reinforcing component further includes a driving block and a locking member. The driving block is located on the side of the protective rotating ring away from the wedge block. The driving block is in contact with the abutment block. The protective rotating ring rotates to drive the abutment block to move. After the driving block rotates, the locking member is used to lock the driving block and the abutment block together.

[0027] By adopting the above technical solution, if the weight of the falling person is large, it can even drive the protective rotating ring to rotate. The protective rotating ring drives the drive block to rotate synchronously. The drive block moves and abuts against the drive abutting block, so that the abutting block abuts against the inner wall of the shaft, thereby increasing the friction between the support frame and the inner wall of the shaft.

[0028] Preferably, the locking component includes a locking slider, a locking block, and a locking torsion spring. The abutment block has a locking groove and a locking slot. The locking slider is mounted on the drive block and is a T-shaped block. The locking groove allows the locking slider to be placed and slid. The locking block is hinged to the locking slider. The torsion spring is located on the hinge shaft where the locking block is hinged to the locking slider. The locking slider slides into the locking slot, and the locking block rotates and extends into the locking slot under the action of the torsion spring.

[0029] By adopting the above technical solution, the drive block rotates and drives the locking slider to move into the locking groove. Under the action of the torsion spring, the locking block rotates and engages with the groove wall of the locking groove, reducing the possibility of the drive block driving the protective rotating ring to reset.

[0030] In summary, this application includes at least one of the following beneficial technical effects:

[0031] 1. Through the setting of support components, moving components, and protective mechanisms, the support and protective mechanisms are assembled in the shaft. The moving block is placed in the lifting slide rail. Then, as construction progresses, the lifting equipment is connected to the support frame through the lifting lugs and drives the entire device to rise and move along the lifting slide rail. When the moving block moves to align with the positioning slot, the moving block automatically extends into the positioning slot, realizing the relative fixation between the support frame and the lifting slide rail. The entire protective device can be raised without reassembly or disassembly, reducing the time occupied by the lifting equipment and thus improving the overall construction progress and efficiency. If construction personnel accidentally fall into the shaft, the protective airbag will cushion the fall and absorb the impact force generated by the faller's own weight. The rotating setting of the protective rotating ring relative to the support frame allows the faller to be protected when they accidentally fall. Due to the combined action of the protective airbag and the protective rope, the faller's own weight generates a component force in the horizontal direction. This component force can drive the protective rotating ring to rotate relative to the support frame, further relieving the force and cushioning the fall, thereby reducing the injury to the faller and improving the protection capability for the faller.

[0032] 2. Through the installation of protective ropes, protective airbags, buffer springs, and pressure relief chutes, if a construction worker accidentally falls into the shaft, the protective airbag will immediately inflate after bearing a large amount of weight, catching the falling worker and reducing the impact of the fall. Simultaneously, the inflation and deployment of the protective airbag, along with the weight of the falling worker, causes the protective rope to deform. The pulling of the protective rope causes the buffer block to move, and under the elastic force of the buffer spring, it helps to decompose and absorb the impact of the fall. If the weight of the falling worker is large, under the influence of the worker's weight, due to the connection of the auxiliary components, the protective airbag will cause the protective rope to tend to descend with the worker. At this time, the protective rope will drive the buffer block to slide along the pressure relief chutes and enter the pressure relief chutes. The sliding of the buffer block will further decompose the impact of the fall, reducing personal injury to the worker. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of the elevator shaft protection device used in the embodiments of this application.

[0034] Figure 2 This is a structural schematic diagram illustrating the lifting slide rail and support mechanism in the embodiments of this application.

[0035] Figure 3 yes Figure 2 A magnified view of part A in the middle.

[0036] Figure 4 This is a structural diagram illustrating the moving component and the mating component in the embodiments of this application.

[0037] Figure 5This is a structural schematic diagram illustrating the protective component, buffer component, and reinforcement component in the embodiments of this application.

[0038] Figure 6 yes Figure 5 A magnified view of part B in the middle.

[0039] Figure 7 This is a top view used to illustrate the entire protective device in the embodiments of this application.

[0040] Explanation of reference numerals in the attached drawings: 1. Lifting slide rail; 11. Positioning groove; 12. Lifting slide groove; 2. Support mechanism; 21. Support component; 211. Support frame; 2111. Storage space; 2112. Moving slide groove; 2113. Guide post; 2114. Fixing ring; 212. First bracket; 2121. Storage slot; 213. Second bracket; 2131. Lifting slider; 214. Abutment support foot; 22. Moving component; 221. Moving block; 222. Moving slider; 223. Moving spring; 3. Matching component; 31. Lifting lug; 311. Limiting plate; 312. Counterweight; 32. Connecting rope; 33. Guide wheel; 4. Protective mechanism; 5. Protective component; 51. Protective rotating ring; 511. Pressure relief groove; 512. Wedge; 513. Placement groove; 514. Pressure relief groove; 52. Protective rope; 53. Protective airbag; 531. Auxiliary component; 6. Buffer component; 61. Buffer slider; 62. Buffer spring; 63. Buffer block; 7. Reinforcing component; 71. Abutment block; 711. Locking groove; 712. Locking groove; 72. Drive block; 73. Locking slider; 74. Locking block; 8. Floor beam; 9. Shaft. Detailed Implementation

[0041] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0042] This application discloses an elevator shaft protection device, such as... Figure 1 and 2 As shown, the system includes a lifting slide rail 1, a support mechanism 2, and a protective mechanism 4, all embedded in the inner wall of the shaft 9. The support mechanism 2 includes a support component 21 and a moving component 22, with the moving component 22 connected to the support component 21. The lifting slide rail 1 allows the moving component 22 to move and be positioned. The support component 21 connects the protective device to the floor beam 8 and to the inner wall of the shaft 9. The protective mechanism 4 cushions and supports workers who accidentally fall, protecting their personal safety.

[0043] like Figure 2 , 3As shown in Figure 4, the support assembly 21 includes a support frame and a support frame 211. The support frame includes a first bracket 212 and a second bracket 213, both of which are fixedly connected to the support frame 211. The end of the first bracket 212 away from the support frame 211 is hinged with an abutment support foot 214. A storage slot 2121 for storing the abutment support foot 214 is provided in the first bracket 212. When the abutment support foot 214 extends out of the storage slot 2121, it abuts against the floor beam 8. A torsion spring is provided on the hinge axis between the abutment support foot 214 and the first bracket 212. Under the action of the torsion spring, the abutment support foot 214 always remains in the state of extending out of the storage slot 2121.

[0044] like Figure 2 As shown, a lifting slider 2131 is fixedly connected to the second bracket 213, and a lifting groove 12 is provided on the lifting rail 1 along the height direction for the lifting slider 2131 to slide.

[0045] like Figure 2 , 3 As shown in Figure 4, the movable component 22 includes a movable block 221, a movable slider 222, and a movable spring 223. The movable block 221 is rotatably connected to the support frame 211, and the support frame 211 has a storage space 2111 for placing the movable block 221. The movable slider 222 is fixedly connected to the movable block 221, and the support frame 211 has a sliding groove 2112 for the movable slider 222 to slide in. The sliding groove 2112 is arc-shaped along its length. One end of the movable spring 223 is fixedly connected to the groove wall of the sliding groove 2112, and the other end is fixedly connected to the movable slider 222. When the movable block 221 drives the movable slider 222 to move synchronously, the sliding groove 2112 guides and limits the movement trajectory of the movable slider 222. At this time, the movable spring 223 is in a stretched state, and under the action of its own elastic force, it can drive the movable slider 222 and the movable block 221 to return to their original positions.

[0046] like Figure 2 , 3As shown in Figure 4, the support frame 211 is provided with a mating assembly 3, which includes a lifting lug 31, a connecting rope 32, and a guide wheel 33. The lifting lug 31 is slidably inserted into the support frame 211 in an inverted "U" shape. A counterweight block 312 and a limiting plate 311 are fixedly connected to the end of the lifting lug 31. The counterweight block 312 and the limiting plate 311 are respectively located on both sides of the support frame 211. The lifting lug 31 is used to connect the lifting equipment to the support frame 211. Under the self-weight of the counterweight block 312 and the lifting lug 31, the limiting plate 311 abuts against the support frame 211. If the lifting lug 31 is connected to the lifting equipment, when the lifting equipment moves upward, it pulls the lifting lug 31, causing the counterweight block 312 to abut against the support frame 211. The bottom wall of the storage space 2111 is fixedly connected to a guide rod 2113. A guide wheel 33 is rotatably connected to one end of the guide rod 2113. One end of the connecting rope 32 is fixedly connected to the lifting lug 31. The connecting rope 32 is wound around the guide wheel 33. The end of the connecting rope 32 away from the lifting lug 31 is fixedly connected to the moving block 221.

[0047] like Figure 2 As shown, the lifting slide rail 1 has several positioning slots 11 evenly distributed along its height, and the positioning slots 11 are positioned at the same height as the floor beam 8. The positioning slots 11 are used to support the moving block 221, so that the support frame 211 and the lifting slide rail 1 can achieve a relatively stable connection.

[0048] The protective device is assembled inside the shaft 9, and the lifting slider 2131 is placed inside the lifting chute 12. After assembly, the lifting equipment is connected to the lifting lug 31. The lifting equipment operates, pulling up the lifting lug 31. The connecting rope 32 moves accordingly, causing the moving block 221 to rotate relative to the support frame 211 and enter the storage slot, facilitating the lifting equipment to lift and move the entire protective device. Since the abutment support leg 214 is hinged to the first bracket 212, when the protective device moves to the next floor beam 8, the abutment support leg 214 rotates and retracts into the storage slot 2121 under the abutment action of the inner wall of the shaft 9. When it is fully moved into place, the abutment support leg 214 automatically rotates out of the storage slot 2121 under the action of the torsion spring and abuts against the floor beam 8.

[0049] At this time, the lifting equipment stops operating and is disconnected from the lifting lug 31. Under the weight of its own weight and the gravity of the counterweight block 312, the lifting lug 31 moves relative to the support frame 211. The moving slider 222 and the moving block 221 are reset under the pulling action of the moving spring 223, so that the moving block 221 extends out of the storage space 2111 and abuts against the lifting slide rail 1, and is located in the positioning groove 11, realizing the connection between the support mechanism 2 and the lifting slide rail 1.

[0050] like Figure 1 and 5As shown, the protective mechanism 4 includes a protective component 5 and a buffer component 6. The protective component 5 includes a protective rotating ring 51, a protective rope 52, and a protective airbag 53. The protective rotating ring 51 is rotatably connected to the support frame 211. Several pressure relief grooves 511 are formed on the inner wall of the protective rotating ring 51 and along the circumference of the inner wall. The buffer component 6 is disposed in the pressure relief grooves 511.

[0051] like Figure 5 and 6 As shown, the buffer assembly 6 includes a buffer slider 61, a buffer spring 62, and a buffer block 63. The buffer slider 61 is disposed within the pressure relief groove 511, and the buffer block 63 is slidably connected to the buffer slider 61. One end of the buffer spring 62 is fixedly connected to the buffer slider 61, and the other end is fixedly connected to the end of the buffer block 63 that extends into the buffer slider 61. One end of the protective rope 52 is fixedly connected to the buffer block 63, and the other end is fixedly connected to the protective airbag 53. Multiple pressure relief grooves 511, protective ropes 52, and buffer assemblies 6 are provided, and each corresponds to the other. The buffer slider 61 is made of an elastic material.

[0052] like Figure 6 As shown, a wedge 512 is fixedly connected to the wall of the pressure relief chute 511 and located in the middle of the pressure relief chute 511. The wedge 512 divides the pressure relief chute 511 into a placement groove 513 and a pressure relief groove 514. During assembly, when the buffer slider 61 is located in the placement groove 513, the buffer slider 61 abuts against the wedge surface of the wedge 512. If the protective mechanism 4 catches a construction worker who has accidentally fallen, it drives the buffer slider 61 to move into the pressure relief groove 514.

[0053] like Figure 5 and 7 As shown, an auxiliary component 531 for connecting the protective airbag 53 is fixedly connected to the support frame. The auxiliary component 531 is used to prevent the protective airbag 53 from rotating. During assembly, the buffer block 63 is first positioned in the placement groove 513, that is, one end of the single protective rope 52 connected to the protective airbag 53 and the other end of the protective rope 52 connected to the buffer block 63 are offset radially along the protective rotating ring 51. The auxiliary component 531 is made of a flexible material. Under normal use, it is used to limit the connection of the protective airbag 53; in the event of an accidental fall, the auxiliary component 531 can be broken to facilitate the movement of the protective airbag 53.

[0054] After assembly, the abutment support 214 and the first bracket 212 abut against the floor beam 8, the moving block 221 rotates and is located in the positioning groove 11, and the moving block 221 abuts against the lifting slide rail 1, and the limiting plate 311 abuts against the support frame 211. The buffer slider 61 is located in the placement groove 513, at which time several protective ropes 52 are in a spiral shape.

[0055] If a construction worker accidentally falls into the shaft 9, the protective airbag 53 will inflate immediately after bearing a large amount of weight, catching the falling worker and reducing the impact of the fall. At the same time, the inflation and deployment of the protective airbag 53, along with the weight of the falling worker, will cause the protective rope 52 to deform, causing the buffer block 63 to slide relative to the buffer slider 61. Under the elastic force of the buffer spring 62, the impact of the falling worker will be dispersed and absorbed.

[0056] If the falling person has a large weight, under the action of the falling person's weight, due to the fixed connection of the auxiliary component 531, the protective airbag 53 drives the protective rope 52 to tend to fall with the falling person. At this time, the protective rope 52 drives the buffer slider 61 to slide along the pressure relief groove 511 and enter the pressure relief groove 514. The sliding of the buffer slider 61 further decomposes the impact of the falling person's fall, reducing the personal injury caused to the falling person.

[0057] like Figure 2 As shown, in order to further smoothly decompose and absorb the impact force of falling personnel, a fixed ring 2114 is fixedly connected inside the support frame 211, and the protective rotating ring 51 is rotatably connected inside the fixed ring 2114.

[0058] like Figure 5 , 6 As shown in Figure 7, in order to improve the stability of the connection between the support assembly 21 and the inner wall of the shaft 9 when a person falls, a reinforcing assembly 7 is also included. The reinforcing assembly 7 includes an abutment block 71, a driving block 72, and a locking member. The abutment block 71 is movably disposed within the support frame 211, and the driving block 72 is fixedly connected to the side of the protective rotating ring 51 away from the wedge block 512. The driving block 72 is in contact with the abutment block 71. The rotation of the protective rotating ring 51 drives the abutment block 71 to move. After the driving block 72 rotates, the locking member is used to lock the driving block 72 and the abutment block 71. After the abutment block 71 moves away from the protective rotating ring 51, the abutment block 71 abuts against the inner wall of the shaft 9.

[0059] like Figure 5 , 6 As shown in Figure 7, the locking component includes a locking slider 73, a locking block 74, and a locking torsion spring. The abutment block 71 has a locking groove 711 and a locking groove 712. The locking slider 73 is mounted on the drive block 72 and is a T-shaped block. The locking groove 711 is for the locking slider 73 to be placed and slide. The locking block 74 is hinged to the locking slider 73. The torsion spring is mounted on the hinge shaft of the locking block 74 which is hinged to the locking slider 73. The locking slider 73 slides into the locking groove 712. Under the action of the torsion spring, the locking block 74 rotates and extends into the locking groove 712.

[0060] The implementation principle of an elevator shaft protection device according to an embodiment of this application is as follows:

[0061] After the support mechanism 2 and the protective mechanism 4 are assembled in the shaft 9, the moving block 221 is placed inside the lifting slide rail 1. Then, as construction progresses, the lifting equipment is connected to the support frame 211 via the lifting lug 31, driving the entire device to rise along the lifting slide rail 1. When the moving block 221 moves to align with the positioning slot 11, the moving block 221 automatically extends into the positioning slot 11, achieving relative fixation between the support frame 211 and the lifting slide rail 1. This eliminates the need for reassembly or disassembly, enabling the entire protective device to rise, reducing the time spent by the lifting equipment, and thus improving the overall construction progress. Efficiency; if construction workers still accidentally fall into the shaft 9, the protective airbag 53 will cushion the fall and absorb the impact force generated by the faller's own weight; the rotating setting of the protective rotating ring 51 relative to the support frame 211 allows the faller's own weight to generate a component force in the horizontal direction due to the combined action of the protective airbag 53 and the protective rope 52. This component force can drive the protective rotating ring 51 to rotate relative to the support frame 211, further relieving the force and cushioning the fall, thereby reducing the injury to the faller and improving the protection capability for the faller.

[0062] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An elevator shaft guard, characterized in that, The utility model relates to a kind of safety protection device for elevator shaft, including: Lifting slide rail (1) is embedded in the inner wall of hoistway (9); Support mechanism (2) includes support assembly (21) and moving assembly (22), the support assembly (21) includes support frame (211) and support frame, the support frame is connected with support frame (211), the support frame is in abutment with floor beam (8), lug (31) is equipped on the support frame (211), the lug (31) is used to make support frame (211) connect with hoisting equipment, the moving assembly (22) includes moving block (221), the moving block (221) is movably connected to the outside of support frame (211), positioning slot (11) for receiving moving block (221) is set on the lifting slide rail (1), the setting position of the positioning slot (11) is consistent with the height of floor beam (8); Moving assembly (22) further includes moving slider (222) and moving spring (223), the moving block (221) is rotatably connected to the support frame (211), the support frame (211) is set with the accommodation space (2111) for placing the moving block (221);The moving slider (222) is fixedly connected to the moving block (221), the support frame (211) is set with the moving sliding slot (2112) for the sliding of the moving slider (222), the moving sliding slot (2112) is arc-shaped along the length direction;One end of the moving spring (223) is fixedly connected to the groove wall of the moving sliding slot (2112), and the other end is fixedly connected to the moving slider (222);When the moving block (221) drives the moving slider (222) to move synchronously, the moving sliding slot (2112) guides and limits the movement track of the moving slider (222), and at this time, the moving spring (223) is in the tensile state, and under the action of the elasticity of the moving spring (223) itself, the moving slider (222) and the moving block (221) can be reset; Protection mechanism (4) includes protection assembly (5), the protection assembly (5) is arranged in support frame (211), the protection assembly (5) includes protection swivel (51), protection rope (52) and protection air bag (53), the protection swivel (51) is rotatably connected in support frame (211), the protection rope (52) is provided with several, one end of several protection ropes (52) is connected to protection swivel (51), the other end is connected to the protection air bag (53), and the protection air bag (53) is used to receive and buffer the personnel falling down. Further include the matching assembly (3), the matching assembly (3) includes connecting rope (32) and guide runner (33), the lifting lug (31) is inverted "U" type activity is arranged on the support frame (211), one end of the connecting rope (32) is arranged on the lifting lug (31), the guide runner (33) is arranged on the support frame (211), the connecting rope (32) is arranged around the guide runner (33), and the end of the connecting rope (32) away from the lifting lug (31) is connected with the moving block (221); The end of the lifting lug (31) is provided with a limit plate (311) and a counterweight block (312), the counterweight block (312) and the limit plate (311) are arranged on the upper and lower sides of the support frame (211), and the limit plate (311) abuts against the upper side of the support frame (211) in the natural state of the lifting lug (31);When the lifting lug (31) is in the lifting state, the counterweight block (312) abuts against the lower side of the support frame (211); The support frame includes a first support (212), one end of the first support (212) is fixedly connected with the support frame (211), the end of the first support (212) away from the support frame (211) is hingedly connected with an abutting support leg (214), a storage groove (2121) for storing the abutting support leg (214) is formed in the first support (212), and the abutting support leg (214) abuts against the floor beam (8) when the abutting support leg (214) extends out of the storage groove (2121).

2. An elevator shaft guard according to claim 1, characterised in that: The protection mechanism (4) further includes a buffer assembly (6), the buffer assembly (6) includes a buffer spring (62) and a buffer block (63), the buffer block (63) is connected with the buffer spring (62), one end of the buffer spring (62) away from the buffer block (63) is arranged in the protection swivel (51), and one end of the protection rope (52) away from the protection air bag (53) is connected with the buffer block (63).

3. An elevator shaft guard according to claim 2, characterised in that: The buffer assembly (6) further includes a buffer sliding block (61), the buffer sliding block (61) is placed and slides in the circumferential force relief sliding groove (511) formed in the protection swivel (51), and one end of the buffer spring (62) away from the buffer block (63) is fixedly connected in the buffer sliding block (61); An auxiliary part (531) for connecting the protection air bag (53) is arranged on the support frame, and the auxiliary part (531) is used to make the protection air bag (53) stop rotating; One end of the protection rope (52) connected with the protection air bag (53) and the end of the protection rope (52) connected with the buffer block (63) are radially staggered along the protection swivel (51).

4. An elevator shaft guard according to claim 3, characterised in that: The wedge block (512) is arranged on the groove wall of the relief chute (511) and at the middle of the relief chute (511), the wedge block (512) divides the relief chute (511) into a placing groove (513) and a relief groove (514), in the natural state, the buffer sliding block (61) is located in the placing groove (513), and the buffer sliding block (61) abuts against the wedge surface of the wedge block (512); in the stressed state of the protection mechanism (4), the buffer sliding block (61) slides into the relief groove (514).

5. An elevator shaft guard according to claim 4, characterised in that: The reinforcing assembly (7) further comprises an abutting block (71) movably arranged in the support frame (211), and the abutting block (71) abuts against the inner wall of the shaft (9) after moving away from the protection swivel ring (51).

6. An elevator shaft guard according to claim 5, characterised in that: The reinforcing assembly (7) further comprises a driving block (72) and a locking piece, the driving block (72) is arranged on the side of the protection swivel ring (51) away from the wedge block (512), the driving block (72) is attached to the abutting block (71), the protection swivel ring (51) drives the abutting block (71) to move, and the locking piece is used for locking the driving block (72) and the abutting block (71) after the driving block (72) rotates.

7. An elevator shaft guard according to claim 6, characterised in that: The locking piece comprises a locking sliding block (73), a locking block (74) and a locking torsional spring, the abutting block (71) is provided with a locking sliding groove (711) and a locking groove (712), the locking sliding block (73) is arranged on the driving block (72), the locking sliding block (73) is a T-shaped block, the locking sliding groove (711) is used for placing and sliding the locking sliding block (73), the locking block (74) is hinged to the locking sliding block (73), the torsional spring is arranged on the hinge shaft of the locking block (74) hinged to the locking sliding block (73), the locking sliding block (73) slides into the locking groove (712), and the locking block (74) rotates and extends into the locking groove (712) under the action of the torsional spring.

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