A high-performance elevator shaft protection device

Abstract

This invention provides a high-performance elevator shaft protection device, including a bracket. The top of the bracket is equipped with a first buffer device and a second buffer device. The bracket has multiple first friction claws and multiple second friction claws. One end of each first friction claw has a first friction block, and one end of each second friction claw has a second friction block. The first and second friction blocks abut against the shaft wall. When construction equipment or personnel fall into the elevator shaft, the first buffer device provides initial cushioning. When the sponge block is in contact with the shaft, it provides further cushioning. A seventh spring provides a third cushioning effect. The support plate moves downward, compressing the second buffer device for a fourth cushioning effect. Simultaneously, the axle pin presses against the pressure block, causing the first and second friction claws to rotate relative to the bracket. This causes the first and second friction claws to lift, deforming the elastic bushing on the rotating shaft, increasing the overall friction of the device and enhancing the cushioning effect.

Description

Technical Field

[0001] This invention relates to the field of engineering construction protection, and in particular to a high-performance elevator shaft protection device. Background Technology

[0002] Safety protection is one of the measures to ensure safety in construction. The effectiveness, aesthetics, and reusability of these protections have become major challenges in construction. In construction safety, elevator shafts, due to their height and generally dark environment, are easily used as high-altitude passageways, posing a significant risk of workers or construction equipment falling into them. Currently, common elevator shaft protection methods include pre-embedded channel steel, pre-embedded steel pipes, and scaffolding. Pre-embedded channel steel requires pre-embedding sockets or directly embedding the channel steel during formwork installation, which affects the quality of the wall structure and can easily lead to leakage and appearance defects. Pre-embedded steel pipes are prone to material waste, and their large lateral deformation makes them susceptible to corrosion, resulting in insufficient protection reliability. Scaffolding involves a large amount of steel pipe material, making it uneconomical. Especially when workers fall into elevator shafts, these common protection methods—pre-embedded channel steel, pre-embedded steel pipes, and scaffolding—are unlikely to provide effective cushioning. Once a person falls in, a safety accident is almost inevitable. How to effectively protect elevator shafts is a key challenge in modern construction technology. Therefore, we propose a high-performance elevator shaft protection device to solve the above problems. Summary of the Invention

[0003] The technical problem to be solved by this invention is to provide a high-performance elevator shaft protection device, which solves the problems of common protection methods that require pre-embedding sockets or directly pre-embedding channel steel during template installation, which affects the forming quality of the wall and is prone to leakage and appearance defects; pre-embedding steel pipes is prone to material waste, and the steel pipes are prone to corrosion due to large lateral deformation, resulting in insufficient protection reliability; and the problem of a large amount of steel pipe material involved in scaffolding erection.

[0004] This invention provides a high-performance elevator shaft protection device, which solves another technical problem: when workers fall into elevator shafts, common protection methods such as pre-embedded channel steel, pre-embedded steel pipes, and scaffolding are difficult to effectively cushion the human body and make it difficult to avoid safety accidents, resulting in unreliable protection effects.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a high-performance elevator shaft protection device, including a bracket, a first buffer device and a second buffer device on the top of the bracket, a plurality of first friction claws and a plurality of second friction claws on the bracket, a first friction block at one end of the first friction claw, and a second friction block at one end of the second friction claw.

[0006] The first and second friction blocks abut against the well wall.

[0007] In the preferred embodiment, the first buffer device includes a ring body, an elastic pad in the middle of the ring body, the elastic pad and the ring body are connected by a plurality of first springs, a sponge block is provided at the bottom of the first buffer device, a support plate is provided at the bottom of the sponge block, and a plurality of seventh springs are provided between the support plate and the bracket.

[0008] In the preferred embodiment, the bracket has multiple through holes, the bottom of which has a lower through hole. The bracket has multiple rotating shafts and multiple baffles. The second buffer device includes a bushing with a sliding pin and a mounting plate. The mounting plate is installed on the through holes. One end of the pin abuts against the support plate. A second spring is provided between the pin and the bushing.

[0009] In the preferred embodiment, the first friction claw includes a diagonal brace, a pressure block at one end of the diagonal brace, a shaft hole on the pressure block, a rotating shaft abutting against the shaft hole, a torsion spring between the rotating shaft and the shaft hole, an elastic bushing on the rotating shaft, the pressure block on both sides of the lower through hole, and one end of the shaft pin located above the pressure block. The structure of the second friction claw is the same as that of the first friction claw, and a second torsion spring is provided between the rotating shaft and the shaft hole of the second friction claw.

[0010] In a preferred embodiment, a friction device is provided at one end of the first friction claw. The friction device includes a first friction block and a housing. A fastening component is provided on the first friction block. A deflecting component is provided between the fastening component and the first friction block. A centrifugal mechanism is provided on one side of the first friction block. The centrifugal mechanism is rotatably connected to the housing. A first impact device and a second impact device are provided on the friction device.

[0011] In a preferred embodiment, the centrifugal mechanism includes a central shaft, a rotating swing arm frame on the central shaft, a hinged swing arm on the swing arm frame, and a centrifugal ball at one end of the swing arm.

[0012] In the preferred embodiment, a third spring is provided between the swing arm frame and the swing arm, and an arc-shaped hole and a T-shaped groove are provided on the centrifugal mechanism. A second arc-shaped groove is provided on one side of the T-shaped groove, and a transition rounded corner is provided at one end of both the T-shaped groove and the arc-shaped hole.

[0013] In the preferred embodiment, the first striking device includes an L-shaped rod and a first L-shaped pin. One end of the L-shaped rod abuts against a T-shaped groove, and the other end of the L-shaped rod abuts against the bottom of one of the swing arms. The first L-shaped pin is provided with a pin shaft, which is rotatably connected to the friction device. The first L-shaped pin rotates in the second arc-shaped groove. The second striking device includes a second pin, which is installed in an arc-shaped hole and rotatably connected to the friction device. A sixth spring is provided between the second pin and the friction device.

[0014] In the preferred embodiment, the first friction block has multiple through holes on both sides, a rotating hole and multiple claw holes on the first friction block, multiple pin claws on one side of the fastening component, the pin claws abutting against the claw holes, multiple fourth springs between the first friction block and the fastening component, multiple L-shaped grooves on both sides of the fastening component, and an arc groove at the top of the L-shaped groove.

[0015] In the preferred embodiment, the deflecting component includes a single rotating component located on both sides of the fastening assembly. The single rotating component includes an L-shaped rod and multiple U-shaped rods. One end of the L-shaped rod and multiple U-shaped rods abuts against the arc groove. Two L-shaped rods are connected by a connecting rod, which abuts against the rotating hole. One end of the U-shaped rod abuts against the through hole. The L-shaped rod and the U-shaped rod or adjacent U-shaped rods are connected by ropes.

[0016] The connecting rod is located on the upper side of one of the L-bars, and the second ejector pin is located on the lower side of the L-bar.

[0017] This invention provides a high-performance elevator shaft protection device. When construction equipment or personnel fall into the elevator shaft, the first buffer device provides initial cushioning. The elastic pad is stretched and cushioned by multiple first springs, gaining sufficient buffering time. When the equipment or personnel land on the sponge block, it provides further cushioning. The equipment or personnel are then pushed against the support plate by the sponge block, causing the support plate to move downwards. Multiple seventh springs under the support plate provide a third cushioning effect. The downward movement of the support plate compresses the second buffer device, providing a fourth cushioning effect. Simultaneously, the axle pin presses against the pressure block, causing the first and second friction claws to rotate relative to the bracket. This causes the first and second friction claws to lift up, and the elastic bushing on the rotating shaft deforms, increasing the overall friction of the device and enhancing the cushioning effect.

[0018] Both the first and second friction claws are equipped with torsion springs between themselves and the support to facilitate the installation of the entire device. During installation, rotating the multiple first and second friction claws and then releasing them causes them to rest against the well wall. When the construction equipment is relatively light, it avoids the need for pre-embedded sockets or direct pre-embedded channel steel during template installation, which could affect the forming quality of the wall. It also avoids leakage and appearance defects, eliminates the waste of materials involved in pre-embedded steel pipes or scaffolding, and prevents easy corrosion due to large lateral deformation of steel pipes. It offers strong protective reliability and is also recyclable.

[0019] This device is equipped with a centrifugal mechanism. If a person falls into the well wall, the support will be in a multi-buffered state, and the speed will change from acceleration to deceleration. The tension of the third spring is set to the minimum tension required to open the fastening components of this device. The second impact device must be in the safety position of being opened. The second impact device is used to open the device in case the person's falling speed is too high during the acceleration process, and the entire device is constantly accelerating before the support can decelerate.

[0020] When a person falls, if the maximum falling speed during the descent does not reach the swing speed of the swing arm in the centrifugal mechanism, it indicates that the entire device can ensure a safe fall for the person through friction without activating the fastening components. If the maximum falling speed is high, the swing arm disengages from the tension of the third spring, the fastening components open, and multiple pincers extend and engage with the well wall to ensure a safe landing. If the falling speed is excessive, causing the centrifugal mechanism to continuously accelerate, or if the speed becomes so high that even after the falling speed gradually decreases, activating the fastening components still cannot guarantee a safe landing, the centrifugal mechanism reaches the necessary activation speed. The swing arm moves to the position of the second impact device, and the pincers engage with the well wall to ensure a safe landing.

[0021] The centrifugal mechanism, together with the first friction block, fastening assembly, deflector, first impact device, and second impact device, plays a multiple safety role. When the falling speed is low, the fastening assembly does not need to be activated. When the falling speed reaches the minimum activation speed, the centrifugal mechanism decelerates and activates the fastening assembly. When the falling speed is too high, the centrifugal mechanism activates the fastening assembly during acceleration. The entire device can accurately ensure the safe landing of personnel and is suitable for widespread use. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0023] Figure 1 This is an overall front view of the present invention;

[0024] Figure 2 This is an axonometric view of a portion of the device of the present invention;

[0025] Figure 3 This is an exploded view of a portion of the device of the present invention;

[0026] Figure 4 This is an axonometric view of the bracket of the present invention;

[0027] Figure 5 For the present invention Figure 4 A magnified view of A;

[0028] Figure 6 This is an axonometric view of a portion of the device of the present invention;

[0029] Figure 7 This is an axonometric view of the friction device of the present invention;

[0030] Figure 8 This is an axial view of the deflector of the present invention;

[0031] Figure 9 This is an exploded view of the friction device of the present invention;

[0032] Figure 10 This is a side view of the centrifuge mechanism of the present invention;

[0033] Figure 11 This is a cross-sectional view of the first impact device of the present invention;

[0034] Figure 12 This is an axonometric view of the centrifugal mechanism of the present invention;

[0035] Figure 13 This is a top view of the first buffer device of the present invention;

[0036] In the diagram: 1. Bracket; 101. Through hole; 102. Rotating shaft; 103. Lower through hole; 104. Baffle; 2. First buffer device; 201. Ring; 202. Elastic pad; 203. First spring; 3. Sponge block; 4. Second buffer device; 401. Shaft pin; 402. Bushing; 403. Mounting plate; 404. Second spring; 5. First friction claw; 501. Diagonal brace; 502. Shaft hole; 503. Pressure block; 6. Friction device; 7. Centrifugal mechanism; 701. Swing arm; 702. Third spring; 703. Centrifugal ball; 704. Arc hole; 705. Central shaft; 706. T-slot; 707. Second arc groove 708; First friction block 8; Through hole 801; Rotary hole 802; Claw hole 803; Fourth spring 804; Fastening assembly 9; Needle claw 901; L-shaped groove 902; Arc groove 903; Deflector 10; L-rod 1001; Connecting rod 1002; U-shaped rod 1003; Rope 1004; First impact device 11; L-shaped rod 1101; First L-shaped ejector pin 1102; Fifth spring 1103; Ejector pin shaft 1104; Second impact device 12; Second ejector pin 1201; Sixth spring 1202; Support plate 13; Seventh spring 14. Detailed Implementation

[0037] Example 1:

[0038] like Figures 1-13 In the present invention, a high-performance elevator shaft protection device includes a bracket 1, a first buffer device 2 and a second buffer device 4 on the top of the bracket 1, a plurality of first friction claws 5 and a plurality of second friction claws on the bracket 1, a first friction block 8 at one end of the first friction claw 5 and a second friction block at one end of the second friction claw.

[0039] The first friction block 8 and the second friction block abut against the shaft wall. With this structure, when construction equipment or personnel fall into the elevator shaft, the first buffer device 2 provides initial buffering. The elastic pad 202, under the action of multiple first springs 203, stretches and buffers, gaining sufficient buffering time. When the equipment or personnel land on the sponge block 3, it provides further buffering. Behind the equipment or personnel, the sponge block 3 presses against the support plate 13, causing the support plate 13 to move downwards. Multiple seventh springs 14 under the support plate 13 provide a third buffering effect. The downward movement of the support plate 13 compresses the second buffer device 4, providing a fourth buffering effect. Simultaneously, the shaft pin 401 presses against the pressure block 503, causing the first friction claw 5 and the second friction claw to rotate relative to the bracket 1. This causes the first friction claw 5 and the second friction claw to lift, deforming the elastic bushing on the rotating shaft 102, increasing the overall friction of the device and enhancing the buffering effect.

[0040] Both the first friction claw 5 and the second friction claw are equipped with torsion springs between themselves and the bracket 1 to facilitate the installation of the entire device. During installation, rotating the multiple first friction claws 5 and the second friction claws and then releasing them causes the multiple friction claws to rest against the well wall. When the construction equipment is relatively light, it avoids the need for pre-embedded sockets or direct pre-embedded channel steel during template installation, which could affect the forming quality of the wall. It also avoids leakage and appearance defects, eliminates the waste of materials involved in pre-embedded steel pipes or scaffolding, and prevents easy corrosion due to large lateral deformation of steel pipes. It offers strong protection reliability and is also recyclable.

[0041] This device is equipped with a centrifugal mechanism 7. If a person falls into the well wall, the support 1 will be in a multi-buffered system. The speed change process is an acceleration followed by deceleration. The tension of the third spring 703 is set to the minimum opening tension of the fastening component 9 of this device. The position of the second impact device 12 must be the safety position that is opened. The second impact device 12 is used to open the device in case the person falls too fast during the acceleration process. The entire device is constantly accelerating and cannot wait for the support 1 to decelerate. The second impact device 12 plays an emergency opening role.

[0042] When a person falls, the maximum falling speed during the descent does not reach the swing speed of the swing arm 702 in the centrifugal mechanism 7, and the swing arm 702 does not disengage from the tension of the third spring 703. This indicates that the overall device can ensure that the person falls safely through the action of friction without opening the fastening component 9.

[0043] When a person falls, the maximum falling speed is relatively high. The swing arm 702 disengages from the tension of the third spring 703, and the L-shaped rod 1101 extends. This indicates that the deceleration by the friction block alone is insufficient to ensure the safety of the person when they reach the bottom of the well. As the falling speed gradually decreases, the swing arm 702 rebounds under the tension of the third spring 703. The swing arm 702 strikes the L-shaped rod 1101, which in turn strikes the deflector 10. The fastening assembly 9 opens, and multiple pincers 901 extend and nail into the well wall to ensure the safety of the person upon landing.

[0044] When a person falls and the falling speed is too high, the centrifugal mechanism 7 will be constantly accelerating. Or, if the falling speed is too high and the fastening component 9 is activated after the falling speed gradually decreases, it will still not be able to ensure the safe landing of the person. At this time, the centrifugal mechanism 7 will reach the speed at which it must be activated. The swing arm 702 will move to the position of the second impact device 12. The second impact device 12 will strike the bottom of the L rod 1001, and the needle claw 901 will be driven into the well wall to ensure the safe landing of the person.

[0045] The centrifugal mechanism 7, together with the first friction block 8, fastening component 9, deflector 10, first impact device 11 and second impact device 12, plays a multiple safety role. When the falling speed is low, the fastening component 9 does not need to be opened. When the falling speed reaches the minimum opening speed, the centrifugal mechanism 7 decelerates and opens the fastening component 9. When the falling speed is too high, the centrifugal mechanism 7 opens the fastening component 9 during the acceleration process. The whole device can accurately ensure the safe landing of personnel.

[0046] In the preferred embodiment, the first buffer device 2 includes a ring 201 with an elastic pad 202 in the middle. The elastic pad 202 is connected to the ring 201 by multiple first springs 203. A sponge block 3 is provided at the bottom of the first buffer device 2, and a support plate 13 is provided at the bottom of the sponge block 3. Multiple seventh springs 14 are provided between the support plate 13 and the bracket 1. With this structure, when construction equipment or personnel fall into the elevator shaft, the first buffer device 2 provides the initial buffering effect. The elastic pad 202 is stretched and buffered by the multiple first springs 203. The bottom of the elastic pad 202 is hollow, which allows the falling personnel or objects to have a longer buffering distance and gain more buffering time. When the equipment or personnel land on the sponge block 3, it provides a further buffering effect. The equipment or personnel are then pushed down by the sponge block 3, causing the support plate 13 to move downward.

[0047] In the preferred embodiment, the bracket 1 is provided with multiple through holes 101, and the bottom of the through holes 101 is provided with a lower through hole 103. The bracket 1 is provided with multiple rotating shafts 102 and multiple baffles 104. The second buffer device 4 includes a bushing 402, a sliding pin 401 on the bushing 402, and a mounting plate 403 on the bushing 402. The mounting plate 403 is installed on the through holes 101. One end of the pin 401 abuts against the support plate 13. A second spring 404 is provided between the pin 401 and the bushing 402. With this structure, the equipment or personnel behind the device press the support plate 13 through the sponge block 3, causing the support plate 13 to move downward. The multiple seventh springs 14 under the support plate 13 play a third buffering role. The downward movement of the support plate 13 compresses the second buffer device 4, playing a fourth buffering role. At the same time, it causes the shaft pin 401 to press the pressure block 503, causing the first friction claw 5 and the second friction claw to rotate relative to the bracket 1. This causes the first friction claw 5 and the second friction claw to lift up, and the elastic bushing on the rotating shaft 102 to deform, thereby increasing the overall friction of the device and enhancing the buffering effect.

[0048] In the preferred embodiment, the first friction claw 5 includes a diagonal brace 501, with a pressure block 503 at one end of the diagonal brace 501. A shaft hole 502 is provided on the pressure block 503, and a rotating shaft 102 abuts against the shaft hole 502. A torsion spring is provided between the rotating shaft 102 and the shaft hole 502, and an elastic bushing is provided on the rotating shaft 102. Both sides of the pressure block 503 are on the lower through holes 103, and one end of the shaft pin 401 is located above the pressure block 503. The second friction claw has the same structure as the first friction claw 5, and a second torsion spring is provided between the rotating shaft of the second friction claw and the shaft hole 502. With this structure, torsion springs are provided between the first and second friction claws and the support 1, facilitating the installation of the entire device. During installation, multiple first and second friction claws are rotated, and after releasing the first and second friction claws, the multiple friction claws abut against the well wall. When the construction equipment is relatively light, avoid pre-embedding sockets or directly pre-embedding channel steel when installing formwork, which may affect the forming quality of the wall. At the same time, avoid leakage and appearance defects, avoid material waste caused by pre-embedding steel pipes or erecting scaffolding, avoid easy corrosion due to large lateral deformation of steel pipes, have strong protection reliability, and can be recycled.

[0049] In the preferred embodiment, the first friction claw 5 has a friction device 6 at one end. The friction device 6 includes a first friction block 8 and a housing. The first friction block 8 is equipped with a fastening component 9, and a deflector 10 is provided between the fastening component 9 and the first friction block 8. A centrifugal mechanism 7 is provided on one side of the first friction block 8, and the centrifugal mechanism 7 is rotatably connected to the housing. The friction device 6 is equipped with a first impact device 11 and a second impact device 12. With this structure, the centrifugal mechanism 7, in conjunction with the first friction block 8, the fastening component 9, the deflector 10, the first impact device 11, and the second impact device 12, plays a multiple safety role. When the falling speed is low, the fastening component 9 does not need to be opened. When the falling speed reaches the minimum opening speed, the centrifugal mechanism 7 decelerates and opens the fastening component 9. When the falling speed is too high, the centrifugal mechanism 7 opens the fastening component 9 during acceleration. The entire device can accurately ensure the safe landing of personnel. The tension of the third spring 703 is set to the minimum tension for opening the fastening component 9 of this device. The position of the second impact device 12 is such that if the speed is too high, the swing arm 702 rotates to the safety position where it must be opened.

[0050] In a preferred embodiment, the centrifuge mechanism 7 includes a central shaft 706, a rotating swing arm 701 mounted on the central shaft 706, a hinged swing arm 702 mounted on the swing arm 701, and a centrifuge ball 704 at one end of the swing arm 702. With this structure, the outer casing of the centrifuge mechanism 7 is a roller, and the centrifuge mechanism 7 rolls against the well wall. The centrifuge mechanism 7 is used to detect the speed of the entire device.

[0051] In the preferred embodiment, a third spring 703 is provided between the swing arm frame 701 and the swing arm 702. The centrifugal mechanism 7 is provided with an arc-shaped hole 705 and a T-slot 707. A second arc-shaped groove 708 is provided on one side of the T-slot 707. Both the T-slot 707 and the arc-shaped hole 705 have a transition fillet at one end. With this structure, when a person falls, the maximum falling speed during the descent does not reach the swing speed of the swing arm 702 in the centrifugal mechanism 7, and the swing arm 702 does not disengage from the tension of the third spring 703. This indicates that the entire device can ensure that the person falls safely through the action of friction without opening the fastening assembly 9. When a person falls, the maximum falling speed is relatively high. The swing arm 702 disengages from the tension of the third spring 703, and the L-shaped rod 1101 extends. This indicates that the deceleration by the friction block alone is insufficient to ensure the safety of the person when they reach the bottom of the well. As the falling speed gradually decreases, the swing arm 702 rebounds under the tension of the third spring 703. The swing arm 702 strikes the L-shaped rod 1101, which in turn strikes the deflector 10. The fastening assembly 9 opens, and multiple pincers 901 extend and nail into the well wall to ensure the safety of the person upon landing.

[0052] Both the T-slot 707 and the arc-shaped hole 705 have a transition rounded corner at one end to facilitate the rotation of the second ejector pin 1201 or the first L-shaped ejector pin 1102.

[0053] In the preferred embodiment, the first impact device 11 includes an L-shaped rod 1101 and a first L-shaped pin 1102. One end of the L-shaped rod 1101 abuts against the T-shaped groove 707, and the other end abuts against the bottom of one of the swing arms 702. The first L-shaped pin 1102 is provided with a pin shaft 1104, which is rotatably connected to the friction device 6. The first L-shaped pin 1102 rotates within the second arc-shaped groove 708. The second impact device 12 includes a second pin 1201, which is installed in the arc-shaped hole 705 and rotatably connected to the friction device 6. A sixth spring 1202 is provided between the second pin 1201 and the friction device 6. With this structure, the maximum falling speed during the descent is relatively large. The swing arm 702 is released from the tension of the third spring 703, and the L-shaped rod 1101 extends. This indicates that the deceleration is only achieved through the friction block, which is insufficient to ensure the safety of personnel when they reach the bottom of the well.

[0054] In the preferred embodiment, the first friction block 8 has multiple through holes 801 on both sides, a rotating hole 802 and multiple claw holes 803 on the first friction block 8, multiple pin claws 901 on one side of the fastening component 9, the pin claws 901 abut against the claw holes 803, multiple fourth springs 804 are provided between the first friction block 8 and the fastening component 9, multiple L-shaped grooves 902 are provided on both sides of the fastening component 9, and an arc groove 903 is provided at the top of the L-shaped grooves 902. With this structure, as the falling speed gradually decreases, the swing arm 702 rebounds under the tension of the third spring 703, and the swing arm 702 impacts the L-shaped rod 1101. The L-shaped rod 1101 slides out of the T-shaped groove 707. Due to the impact of the swing arm 702, the L-shaped rod 1101 deflects, causing one end of the L-shaped rod 1101 to impact the first L-shaped pin 1102. The first L-shaped pin 1102 deflects, causing one end of the first L-shaped pin 1102 to impact the upper part of the L-rod 1001. This causes the deflecting member 10 to rotate under the drive of the rope 1004, causing the L-rod 1001 to slide out of the arc groove 903 and the L-shaped groove 902. This causes the fastening assembly 9 to move under the action of the fourth spring 804, thereby opening the fastening assembly 9. Multiple pin claws 901 extend and nail into the well wall to ensure the safe landing of personnel.

[0055] In the preferred embodiment, the deflecting component 10 includes single rotating components located on both sides of the fastening assembly 9. Each single rotating component includes an L-shaped rod 1001 and a plurality of U-shaped rods 1003. One end of the L-shaped rod 1001 and the plurality of U-shaped rods 1003 abuts against the arc groove 903. Two L-shaped rods 1001 are connected by a connecting rod 1002, which abuts against the rotating hole 802. One end of the U-shaped rod 1003 abuts against the through hole 801. The L-shaped rod 1001 and the U-shaped rod 1003 or adjacent U-shaped rods 1003 are connected by a rope 1004.

[0056] Link 1002 is located on the upper side of one of the L-bars 1001, and the second pin 1201 is located on the lower side of the L-bar 1001. With this structure, when a person falls, if the falling speed is too high, the centrifugal mechanism 7 will continuously accelerate, or if the falling speed is too high to ensure a safe landing even after the fastening assembly 9 is activated, the centrifugal mechanism 7 will reach the necessary activation speed. The swing arm 702 will move to the position of the second impact device 12, striking the second pin 1201. The second pin 1201 will rotate in the arc-shaped hole 705, causing one end of the arc-shaped hole 705 to strike the lower part of the L-bar 1001. This will cause the deflector 10 to rotate under the drive of the rope 1004, causing the L-bar 1001 to slide out of the arc groove 903 and the L-shaped groove 902. This will cause the fastening assembly 9 to move under the action of the fourth spring 804, opening the fastening assembly 9. Multiple claws 901 will extend and embed themselves into the well wall to ensure a safe landing for the person. When the swing arm 702 does not move to the position of the second striking device 12, the second striking pin 1201 moves away from the L rod 1001 under the action of the sixth spring 1202.

[0057] The above embodiments are merely preferred technical solutions of the present invention and should not be considered as limitations on the present invention. The embodiments and features described in these embodiments can be arbitrarily combined without conflict. The scope of protection of the present invention should be limited to the technical solutions described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A high-performance elevator shaft protection device, characterized in that: Includes a bracket (1), the top of the bracket (1) is provided with a first buffer device (2) and a second buffer device (4), the bracket (1) is provided with a plurality of first friction claws (5) and a plurality of second friction claws, one end of the first friction claw (5) is provided with a first friction block (8), and one end of the second friction claw is provided with a second friction block; The first friction block (8) and the second friction block abut against the well wall; The first friction claw (5) is provided with a friction device (6) at one end. The friction device (6) includes a first friction block (8) and a housing. The first friction block (8) is provided with a fastening component (9). A deflector (10) is provided between the fastening component (9) and the first friction block (8). A centrifugal mechanism (7) is provided on one side of the first friction block (8). The centrifugal mechanism (7) is rotatably connected to the housing. The friction device (6) is provided with a first impact device (11) and a second impact device (12). The centrifugal mechanism (7) includes a central shaft (706), a rotating swing arm (701) is provided on the central shaft (706), a hinged swing arm (702) is provided on the swing arm (701), and a centrifugal ball (704) is provided at one end of the swing arm (702). The first striking device (11) includes an L-shaped rod (1101) and a first L-shaped pin (1102). One end of the L-shaped rod (1101) abuts against the T-shaped groove (707), and the other end of the L-shaped rod (1101) abuts against the bottom of one of the swing arms (702). The first L-shaped pin (1102) is provided with a pin shaft (1104), which is rotatably connected to the friction device (6). The first L-shaped pin (1102) rotates in the second arc groove (708). The second striking device (12) includes a second pin (1201), which is installed in the arc hole (705) and rotatably connected to the friction device (6). A sixth spring (1202) is provided between the second pin (1201) and the friction device (6). The first friction block (8) has multiple through holes (801) on both sides, and the first friction block (8) has a rotating hole (802) and multiple claw holes (803). The fastening component (9) has multiple needle claws (901) on one side, and the needle claws (901) abut against the claw holes (803). Multiple fourth springs (804) are provided between the first friction block (8) and the fastening component (9). The fastening component (9) has multiple L-shaped grooves (902) on both sides, and the top of the L-shaped grooves (902) has an arc groove (903). The deflector (10) includes single deflectors located on both sides of the fastening assembly (9). Each single deflector includes an L-shaped rod (1001) and a plurality of U-shaped rods (1003). One end of each L-shaped rod (1001) and the plurality of U-shaped rods (1003) abuts against the arc groove (903). Two L-shaped rods (1001) are connected by a connecting rod (1002). The connecting rod (1002) abuts against the rotating hole (802). One end of each U-shaped rod (1003) abuts against the through hole (801). The L-shaped rod (1001) and the U-shaped rod (1003) or adjacent U-shaped rods (1003) are connected by a rope (1004). The connecting rod (1002) is located on the upper side of one of the L rods (1001), and the second ejector pin (1201) is located on the lower side of the L rod (1001).

2. The high-performance elevator shaft protection device according to claim 1, characterized in that: The first buffer device (2) includes a ring (201), an elastic pad (202) is provided in the middle of the ring (201), the elastic pad (202) and the ring (201) are connected by a plurality of first springs (203), the bottom of the first buffer device (2) is provided with a sponge block (3), the bottom of the sponge block (3) is provided with a support plate (13), and a plurality of seventh springs (14) are provided between the support plate (13) and the bracket (1).

3. The high-performance elevator shaft protection device according to claim 2, characterized in that: The bracket (1) is provided with multiple through holes (101), and the bottom of the through holes (101) is provided with a lower through hole (103). The bracket (1) is provided with multiple rotating shafts (102) and multiple baffles (104). The second buffer device (4) includes a bushing (402), a sliding pin (401) is provided on the bushing (402), a mounting plate (403) is provided on the bushing (402), the mounting plate (403) is installed on the through hole (101), one end of the pin (401) abuts against the support plate (13), and a second spring (404) is provided between the pin (401) and the bushing (402).

4. The high-performance elevator shaft protection device according to claim 3, characterized in that: The first friction claw (5) includes a diagonal brace (501), a pressure block (503) is provided at one end of the diagonal brace (501), a shaft hole (502) is provided on the pressure block (503), a rotating shaft (102) abuts against the shaft hole (502), a torsion spring is provided between the rotating shaft (102) and the shaft hole (502), an elastic bushing is provided on the rotating shaft (102), the two sides of the pressure block (503) are on the lower through hole (103), and one end of the shaft pin (401) is located above the pressure block (503). The structure of the second friction claw is the same as that of the first friction claw (5), and a second torsion spring is provided between the rotating shaft of the second friction claw and the shaft hole (502).

5. The high-performance elevator shaft protection device according to claim 1, characterized in that: A third spring (703) is provided between the swing arm frame (701) and the swing arm (702). The centrifugal mechanism (7) is provided with an arc-shaped hole (705) and a T-shaped groove (707). A second arc-shaped groove (708) is provided on one side of the T-shaped groove (707). Both the T-shaped groove (707) and the arc-shaped hole (705) have a transition rounded corner at one end.

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