A scaffolding safety anti-falling lifting device

Abstract

The present invention discloses a safety anti-falling lifting device for a scaffolding, which relates to the technical field of building construction. It includes an attached wall support and a frame guide rail. A plurality of anti-falling cross columns are installed in the frame guide rail. It also includes a load unloading support mechanism, which is hinged to the attached wall support and jacks up the anti-falling cross columns in the frame guide rail. An elastic reset component and a gravity reset component are installed between the load unloading support mechanism and the attached wall support. The gravity reset component is installed on the load unloading support mechanism and is movably connected to the attached wall support. Under the action of the elastic reset component and the gravity reset component, the load unloading support mechanism will be reset in time and support the frame guide rail. By setting the elastic reset component and the gravity reset component, the present invention simultaneously resets the load unloading support mechanism, enabling the load unloading support mechanism to be reset and support in time. Only relying on the gravity reset component can also complete the reset action of the load unloading support mechanism, and the gravity reset component will not produce fatigue, avoiding the problem that the load unloading support mechanism cannot be reset.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and particularly to a safety anti-falling lifting device for a scaffold. Background Art

[0002] Scaffolds are essential facilities during the building construction process. Especially when constructing high-rise buildings, after the overall building framework is completed, it is only convenient to carry out the next step of construction after first erecting the entire scaffold around the building. The height of the scaffold is not fixed, but needs to be continuously lifted as the project progresses. The lifting scaffold uses driving components such as electric hoists or oil cylinders as the power source to rise or fall along the building structure, thereby facilitating the construction of workers. Due to the advantages of compact structure and convenient construction of the lifting scaffold, it has been widely used in the construction of high-rise buildings.

[0003] The patent publication number of an existing patent application is: CN216476250U, and the publication date is May 10, 2022. The name of this patent is "An anti-falling device for a lifting scaffold and a lifting scaffold". This patent relates to an anti-falling device for a lifting scaffold and a lifting scaffold. An anti-falling device for a lifting scaffold includes an anti-falling main body, a trigger pendulum block that can rotate in different directions when the scaffold rises and falls, an anti-falling pendulum block that can rotate and reset under its own gravity, and a limiting block for limiting the anti-falling pendulum block to lock the trigger pendulum block; the trigger pendulum block and the anti-falling pendulum block are both rotatably connected to the anti-falling main body, the limiting block is fixedly connected to the anti-falling main body, the trigger pendulum block can abut against the anti-falling pendulum block and drive the anti-falling pendulum block to rotate when rotating, and when the trigger pendulum block is locked, one end of the anti-falling pendulum block abuts against the trigger pendulum block, and the other end abuts against the limiting block. The present invention provides an anti-falling device for a lifting scaffold that can achieve anti-falling functions both when the scaffold rises and falls, has high reliability, and a long service life.

[0004] The above application has deficiencies. The unloading support device is connected to the anti-falling main body through a spring. While the unloading support device keeps repeating back and forth, it will also cause fatigue of the connecting spring. Although the anti-falling pendulum block can normally rotate to the anti-falling position, if the unloading support device cannot support back in time, relying solely on the anti-falling pendulum block is not enough to support the entire scaffold, and there is still a risk of continued falling. Summary of the Invention

[0005] The purpose of the present invention is to provide a safety anti-falling lifting device for a scaffold to solve the above deficiencies in the prior art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A scaffolding safety anti-falling lifting device includes a wall-attached support and a frame guide rail. A plurality of anti-falling cross columns are installed in the frame guide rail. It also includes a load unloading support mechanism, which is hinged to the wall-attached support and jacks up the anti-falling cross columns in the frame guide rail. An elastic reset component and a gravity reset component are installed between the load unloading support mechanism and the wall-attached support. The gravity reset component is installed on the load unloading support mechanism and is movably connected to the wall-attached support. When the frame guide rail rises, the multiple anti-falling cross columns on the frame guide rail sequentially push open the load unloading support mechanism. Under the action of the elastic reset component and the gravity reset component, the load unloading support mechanism will be reset in time and jack up the anti-falling cross columns.

[0008] Preferably, the load unloading support mechanism includes a support rod hinged to the wall-attached support, and a block for the anti-falling cross column to enter is fixedly connected to the top end of the support rod.

[0009] Preferably, the elastic reset component includes a reset spring. One end of the reset spring is fixedly connected to the wall-attached support, and a collar is installed at the other end. A connecting rod passing through the collar is fixedly connected to the outside of the support rod.

[0010] Preferably, the gravity reset component includes insertion rods symmetrically inserted into the wall-attached support. A guide rail is horizontally fixedly connected to the top of the insertion rods. The end of the connecting rod is located in the rail groove of the guide rail. The bottoms of the two insertion rods penetrate through the wall-attached support and are fixedly connected to the same counterweight block.

[0011] Preferably, a tension spring is sleeved outside the insertion rod. The two ends of the tension spring are respectively fixedly connected to the guide rail and the wall-attached support, and are used to pull the guide rail to force the load unloading support mechanism to reset.

[0012] Preferably, a same insertion plate is fixedly connected to one ends of the two guide rails, and a slot matching the insertion plate is installed on the inner side of the wall-attached support.

[0013] Preferably, an electric hoist is hung outside the frame guide rail. A pulling chain is wound in the electric hoist. The end of the pulling chain bypasses the bottom of the frame guide rail and is then hung on the wall-attached support.

[0014] Preferably, an anti-tilting guide column and an anti-tilting guide wheel are rotatably installed in the wall-attached support, and the two are respectively abutted against both sides of the frame guide rail. End caps are symmetrically and elastically sleeved on the shaft of the anti-tilting guide column, and one side of the end cap is in abutting connection with the end face of the anti-tilting guide column through helical teeth. If the frame guide rail accidentally falls, it will drive the anti-tilting guide column to rotate, and the helical teeth on the anti-tilting guide column are used to push open the end caps on both sides, so that the other side of the end cap abuts against the inner wall of the wall-attached support to complete braking.

[0015] Preferably, a connecting frame is fixedly connected to the bottom of the wall-attached support. An anti-falling pendulum block is elastically hinged in the connecting frame. An elastic abutting member is horizontally and penetratingly installed in the connecting frame. A ratchet ring is fixedly sleeved outside the anti-tilting guide post. The elastic abutting member abuts against the ratchet ring and the anti-falling pendulum block respectively.

[0016] Preferably, one end of the elastic abutting member is fixedly connected with a cleaning mechanism. When the anti-tilting guide post rotates to drive the elastic abutting member to move back and forth, the cleaning mechanism is used to clean the connection part between the wall-attached support and the load-unloading support mechanism.

[0017] In the above technical solution, the elastic reset component and the gravity reset component are arranged to simultaneously reset the load-unloading support mechanism, so that the load-unloading support mechanism can be reset and supported in time. It can also rely on the gravity reset component alone to play a reset role. If the elastic reset component is damaged after long-term use, the load-unloading support mechanism can still be reset by relying on the gravity reset component, and the gravity reset component will not produce fatigue, avoiding the problem that the load-unloading support mechanism cannot be reset.

[0018] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not intended to limit the present disclosure.

[0019] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of a scaffolding safety anti-falling lifting device of the present invention;

[0022] Figure 2 It is a bottom view of a scaffolding safety anti-falling lifting device of the present invention;

[0023] Figure 3 It is an enlarged view of part A of a scaffolding safety anti-falling lifting device of the present invention;

[0024] Figure 4 It is a schematic diagram of part of the structure of a scaffolding safety anti-falling lifting device of the present invention;

[0025] Figure 5 It is a cross-sectional view of a scaffolding safety anti-falling lifting device of the present invention;

[0026] Figure 6 Schematic connection diagram of the anti-tilting guide column and the end cover in a safety anti-falling lifting device for a scaffolding according to the present invention;

[0027] Figure 7 Schematic structural diagram of an elastic abutting member in a safety anti-falling lifting device for a scaffolding according to the present invention;

[0028] Figure 8 Schematic structural diagram of another embodiment in a safety anti-falling lifting device for a scaffolding according to the present invention.

[0029] Description of reference numerals:

[0030] 1. Wall-attached support; 101. Slot; 102. Connecting frame; 103. Anti-falling pendulum block; 104. Groove; 105. Brake ring; 106. Dust-proof protection frame; 107. Through groove; 108. Docking groove; 109. Diagonal brace; 2. Frame guide rail; 201. Anti-falling cross column; 202. Chain connection seat; 204. Guide groove; 205. Rack; 3. Unloading support mechanism; 301. Support rod; 302. Block; 303. Connecting rod; 304. Abutting rod; 305. Limit block; 4. Elastic reset assembly; 401. Reset spring; 402. Collar; 5. Gravity reset assembly; 501. Plug rod; 502. Guide rail; 503. Counterweight; 504. Tension spring; 505. Insert plate; 6. Electric hoist; 601. Pulling chain; 7. Anti-tilting guide column; 701. End cover; 702. Ratchet ring; 703. Docking helical teeth; 704. Brake ratchet; 705. Elastic check member; 706. Compression spring; 708. Tooth ring; 8. Anti-tilting guide wheel; 9. Elastic abutting member; 901. Cross plate; 902. Abutting frame; 903. Connecting spring; 904. Slide block; 905. Limit stop block; 906. Limit abutting frame; 907. Tooth plate; 10. Debris removal mechanism; 1001. Poking frame; 1002. Cleaning brush; 1003. Driving tooth teeth. Detailed implementation manners

[0031] To make the objectives, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some but not all of the embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.

[0032] Please refer to Figure 1-7, A scaffolding safety anti-falling lifting device provided by an embodiment of the present invention includes an attached wall support 1 and a frame guide rail 2. A plurality of anti-falling cross columns 201 are installed in the frame guide rail 2. It further includes a load unloading support mechanism 3, which is hinged to the attached wall support 1 and jacks up the anti-falling cross columns 201 in the frame guide rail 2. An elastic reset component 4 and a gravity reset component 5 are installed between the load unloading support mechanism 3 and the attached wall support 1. The gravity reset component 5 is installed on the load unloading support mechanism 3 and is movably connected to the attached wall support 1. When the frame guide rail 2 rises, the plurality of anti-falling cross columns 201 on the frame guide rail 2 sequentially push open the load unloading support mechanism 3. Under the action of the elastic reset component 4 and the gravity reset component 5, the load unloading support mechanism 3 will be reset in time and jack up the anti-falling cross columns 201.

[0033] Specifically, a plurality of attached wall supports 1 are respectively fixed outside the building wall through wall-piercing fasteners at intervals. Then, the plurality of frame guide rails 2 on the scaffolding are docked with each attached wall support 1, so that the frame guide rail 2 can slide up and down on the attached wall support 1. When the frame guide rail 2 is lifted, it will drive the scaffolding connected to the frame guide rail 2 to rise synchronously, so that the frame guide rail 2 makes a vertical movement along the attached wall support 1. The attached wall support 1 can ensure that the scaffolding can always be attached to the outside of the wall during lifting and will not tilt. Under normal conditions, the load unloading support mechanism 3 abuts against the corresponding anti-falling cross columns 201 in the frame guide rail 2 to support and fix the entire scaffolding. During the rising process of the frame guide rail 2, since the load unloading support mechanism 3 is hinged to the attached wall support 1, it can avoid the upward moving anti-falling cross columns 201. The anti-falling cross columns 201 at the lower part can push open the obliquely supported load unloading support mechanism 3 to prevent the load unloading support mechanism 3 from being stuck with the anti-falling cross bar and affecting the lifting of the scaffolding. The elastic reset component 4 can quickly reset after the load unloading support mechanism 3 completes the avoidance, so that when the frame guide rail 2 is not lifted, the load unloading support mechanism 3 can stably abut against the frame guide rail 2. If the elastic reset component 4 shows fatigue during repeated pulling, another gravity reset component 5 can also make the load unloading support mechanism 3 reset in time. The gravity reset component 5 is directly connected to the load unloading support mechanism 3 and makes the load unloading support mechanism 3 reset and support back under the action of gravity. At the same time, the acting force exerted by the gravity reset component 5 will not affect the avoidance action of the load unloading support mechanism 3 on the anti-falling cross columns 201 when the frame guide rail 2 rises.

[0034] Compared with the prior art, the embodiment of the present invention sets an elastic reset component 4 and a gravity reset component 5 to simultaneously reset the load unloading support mechanism 3, so that the load unloading support mechanism 3 can be reset and supported back in time, and can also rely on the gravity reset component 5 alone to play a reset role. If the elastic reset component 4 is damaged after long-term use, relying on the gravity reset component 5 can also complete the reset action of the load unloading support mechanism 3, and the gravity reset component 5 will not fatigue, avoiding the problem that the load unloading support mechanism 3 cannot be reset.

[0035] In a further embodiment of the present invention, the unloading support mechanism 3 includes a support rod 301 hinged to the wall-attached support 1. A clamping block 302 for the anti-falling cross column 201 to enter is fixedly connected to the top of the support rod 301. An arc-shaped groove matching the anti-falling cross column 201 is formed in the clamping block 302. On both sides of the support rod 301, a resisting rod 304 is fixedly connected. Specifically, when the anti-falling cross column 201 enters the arc-shaped groove on the clamping block 302, the support rod 301 can support the frame guide rail 2. At this time, the resisting rods 304 on both sides of the support rod 301 will also rest on the frame guide rail 2, improving the stability of the support and at the same time preventing the support rod 301 from rotating excessively during reset, so that after the support rod 301 rotates to avoid the upwardly moving anti-falling cross column 201 below, the elastic reset assembly 4 can make the arc-shaped groove on the clamping block 302 accurately located at the position where the anti-falling cross column 201 moves downward.

[0036] In a further embodiment of the present invention, the elastic reset assembly 4 includes a reset spring 401. One end of the reset spring 401 is fixedly connected to the wall-attached support 1, and a collar 402 is installed at the other end. A connecting rod 303 penetrating through the collar 402 is fixedly connected to the outside of the support rod 301. Specifically, the number of the reset springs 401 is a pair, and the number of the connecting rods 303 is also a pair. The two connecting rods 303 are respectively fixed on the outer wall of the support rod 301, and the collars 402 on each reset spring 401 are respectively sleeved on each connecting rod 303. The collar 402 is used to connect the reset spring 401 and the connecting rod 303 together, which not only ensures that the reset spring 401 can reset and pull back the support rod 301 in time, but also does not affect the flexibility of the support rod 301 when avoiding the anti-falling cross column 201.

[0037] In a further embodiment of the present invention, the gravity reset assembly 5 includes an insertion rod 501 symmetrically inserted on the wall-mounted support 1, and the top of the insertion rod 501 is horizontally fixedly connected to a guide rail 502, and a rail groove is opened on the guide rail 502. The end of the connecting rod 303 passes through the ring 402 and enters the rail groove of the guide rail 502. The bottoms of the two insertion rods 501 pass through the wall-mounted support 1 and are fixedly connected to the same counterweight block 503. Specifically, the ends of the connecting rod 303 respectively abut against the upper and lower inner walls of the rail groove. Under the action of the gravity of the counterweight block 503, the insertion rod 501 will pull the guide rail 502 downward, thereby forcing the connecting rod 303 to be in the rail groove. When the support rod 301 is in the direction of the frame guide rail 2, the insertion rod 501 not only plays a connecting role, but also plays a limiting role, so that the guide rail 502 can only be adjusted in the up and down position without shifting left and right, so that the support rod 301 can be reset under the action of gravity and support the anti-falling cross column 201 in the frame guide rail 2. After the support rod 301 rotates several times to avoid the anti-falling cross column 201, the counterweight block 503 can still play a role in stabilizing its reset, ensuring that the unloading support mechanism 3 can stably support the scaffolding, avoiding the unloading support mechanism 3 from being unable to return to support in time after the elastic reset component 4 fails, thereby reducing the risk of accidental falling of the scaffolding.

[0038] In a further embodiment of the present invention, the end of the connecting rod 303 is fixedly connected to the limit block 305 on the outside of the rail groove, and the ring 402 is located between the support rod 301 and the guide rail 502. Specifically, the installation of the limit block 305 can prevent the connection rod 303 and the guide rail 502 from detaching, thereby ensuring the reliability of resetting using the counterweight block 503, and because the ring 402 is located between the support rod 301 and the guide rail 502, as long as the position of the guide rail 502 does not shift, the ring 402 will not leave the connecting rod 303, so that the reset spring 401 can always apply tension to the support rod 301, thereby improving the overall reliability of the device.

[0039] In a further embodiment of the present invention, a tension spring 504 is provided on the outer sleeve of the insertion rod 501, and the two ends of the tension spring 504 are respectively fixedly connected to the guide rail 502 and the wall-mounted support 1, and are used to pull the guide rail 502 to force the unloading support mechanism 3 to reset. Specifically, the tension spring 504 is arranged on the insertion rod 501, which can prevent the tension spring 504 from excessive bending during the stretching and compression process, thereby extending the service life of the tension spring 504, and the added tension spring 504 is used to further reduce the risk of the unloading support mechanism 3 being unable to reset and support, thereby improving the reliability of the lifting device.

[0040] In a further embodiment of the present invention, one end of each of the two guide rails 502 is fixedly connected to the same insertion plate 505. A slot 101 matching the insertion plate 505 is installed inside the wall-attached support 1. Specifically, when the strut 301 resets and supports the anti-falling cross-column 201 upward, since the height of the connecting rod 303 gradually decreases during the rotational reset process of the strut 301, the guide rail 502 will be driven to descend synchronously. After the latch 302 on the strut 301 fully supports the anti-falling cross-column 201, the insertion plate 505 will also be inserted into the slot 101 on the wall-attached support 1, enabling the gravity reset assembly 5 to strengthen the unloading support mechanism 3. The guide rail 502 moved to the corresponding position is used to connect the strut 301 and the wall-attached support 1, improving the strength of the support and bracing.

[0041] In a further embodiment of the present invention, an electric hoist 6 is hung outside the frame guide rail 2. The electric hoist 6 is hung on the scaffolding connected to the frame guide rail 2 through a hook. A pulling chain 601 is wound in the electric hoist 6. The end of the pulling chain 601 bypasses the bottom of the frame guide rail 2 and is then hung on the wall-attached support 1. A chain connection seat 202 cooperating with the pulling chain 601 is installed in the frame guide rail 2. Specifically, the electric hoist 6 is hung on the main frame of the scaffolding. The chain connection seat 202 is installed on the frame guide rail 2 of the scaffolding and is in the bottom area. A sprocket is installed in the chain connection seat 202, and the pulling chain 601 cooperates with the sprocket. One end of the pulling chain 601 is fixedly wound on the drum inside the electric hoist 6, and the second end of the pulling chain 601 is hung on the bottom of the wall-attached support 1 after bypassing the sprocket. After the electric hoist 6 and the pulling chain 601 are installed, when the electric hoist 6 winds the pulling chain 601, the scaffolding and the frame guide rail 2 will be driven to lift synchronously.

[0042] In a further embodiment of the present invention, an anti-tilting guide column 7 and a pair of anti-tilting guide wheels 8 are rotatably installed in the wall-attached support 1, and the two are respectively abutted against both sides of the frame guide rail 2. The anti-tilting guide column 7 abuts against the inner side of the frame guide rail 2. Guide grooves 204 are symmetrically and vertically opened on the outer side of the frame guide rail 2. A pair of anti-tilting guide wheels 8 are respectively located in the guide grooves 204 on both sides. End caps 701 are symmetrically and elastically sleeved on the shaft of the anti-tilting guide column 7. Docking bevel gears 703 for snap-fit connection are respectively provided at the ends of the end caps 701 and the anti-tilting guide column 7 facing each other. And one side of the end cap 701 and the end face of the anti-tilting guide column 7 are abutted and connected through the symmetric bevel gears. A braking ratchet 704 is fixedly connected to the other side of the end cap 701. An elastic check member 705 that cooperates with the braking ratchet 704 is horizontally slidably installed at the bottom of the wall-attached support 1. If the frame guide rail 2 accidentally drops, it will drive the anti-tilting guide column 7 to rotate. The bevel gears on the anti-tilting guide column 7 are used to push open the end caps 701 on both sides, so that the braking ratchet 704 on the other side of the end cap 701 abuts against the inner wall of the wall-attached support 1 to complete braking. Specifically, the shaft of the anti-tilting guide column 7 penetrates through the end cap 701 and is rotatably connected to the wall-attached support 1. A groove 104 is opened on the inner wall of the wall-attached support 1. A compression spring 706 is installed in the groove 104. Both ends of the compression spring 706 abut against the groove 104 and the end cap 701 respectively. When the frame guide rail 2 is lifted, the anti-tilting guide column 7 and the anti-tilting guide wheels 8 limit the deviation of the frame guide rail 2 from two opposite directions, which can prevent the frame guide rail 2 from tilting during the lifting process. The upward-moving frame guide rail 2 will also drive the anti-tilting guide column 7 and the anti-tilting guide wheels 8 to rotate counterclockwise. When rotating counterclockwise, under the action of the compression spring 706, the docking bevel gear 703 on the end cap 701 will always mesh with the docking bevel gear 703 on the anti-tilting guide column 7. At this time, the anti-tilting guide column 7 can normally drive the end cap 701 to rotate synchronously. When the frame guide rail 2 accidentally drops, the anti-tilting guide column 7 and the anti-tilting guide wheels 8 rotate clockwise. The braking ratchet 704 on the end face of the end cap 701 is locked by the elastic check member 705, resulting in the end cap 701 being unable to rotate synchronously with the anti-tilting guide column 7 when the anti-tilting guide column 7 rotates clockwise. Furthermore, the docking bevel gear 703 on the anti-tilting guide column 7 gradually pushes open the docking bevel gear 703 on the end cap 701, forcing the end caps 701 on both sides to move outwards at the same time until one side of the braking ratchet 704 firmly abuts against the inner wall of the wall-attached support 1. A braking ring 105 that cooperates with the braking ratchet 704 is embedded on the inner wall of the wall-attached support 1. After the braking ratchet 704 abuts against the braking ring 105, the anti-tilting guide column 7 cannot continue to rotate, which can increase the friction force between the anti-tilting guide column 7 and the frame guide rail 2, reduce the falling speed of the scaffolding, and play a role in anti-falling from another aspect. And during the emergency braking process when falling, there is a certain buffer stroke, reducing the safety hazards during emergency braking.

[0043] In a further embodiment of the present invention, a connecting frame 102 is fixedly connected to the bottom of the wall-mounted support 1, an anti-falling pendulum block 103 is elastically hinged in the connecting frame 102, a dustproof protection frame 106 is installed outside the anti-falling pendulum block 103 at the bottom of the inner wall of the connecting frame 102, and the anti-falling pendulum block 103 is covered in the dustproof protection frame 106, and an elastic abutment 9 is installed horizontally through the connecting frame 102, a ratchet ring 702 is fixedly sleeved outside the anti-tilt guide column 7, and the elastic abutment 9 is respectively abutted against the ratchet ring 702 and the anti-falling pendulum block 103. Specifically, the elastic abutment 9 includes a horizontal plate 901 horizontally movably inserted in the connecting frame 102, and the top of the horizontal plate 901 is fixedly connected to the abutment frame 902, and the top of the abutment frame 902 abuts against the ratchet teeth on the ratchet ring 702, and the horizontal plate 901 The bottom surface is slidably connected to the dustproof protection frame 106, and one end of the cross plate 901 is fixedly connected to a connecting spring 903 connected to the dustproof protection frame 106, and the bottom of the cross plate 901 is also fixedly connected to a slider 904, and a through groove 107 matching the slider 904 is horizontally opened on the top of the dustproof protection frame 106, and the bottom of the slider 904 passes through the through groove 107 and is fixedly connected to a limit stopper 905 matching the anti-falling pendulum block 103, and the limit stopper 905 is located inside the dustproof protection frame 106, and a docking groove 108 matching the limit stopper 905 is opened on the inner wall of the anti-falling pendulum block 103, and one side of the limit stopper 905 is also fixedly connected to a limit bracket 906, and the limit bracket 906 is against the outer side of the anti-falling pendulum block 103, when the frame guide rail 2 is normally lifted When the anti-falling pendulum block 103 is lifted, the anti-falling pendulum block 103 can be rotated to avoid the squeeze of the anti-falling cross column 201. During the lifting process of the frame guide rail 2, the limit block 905 will repeatedly enter and exit the docking groove 108. If the anti-falling pendulum block 103 is lifted, the anti-falling pendulum block 103 can be rotated to avoid the squeeze of the anti-falling cross column 201. The loose parts of 103 cause the position change, so that the limit stopper 905 cannot enter the docking groove 108. At this time, the limit bracket 906 and the limit stopper 905 cooperate to limit the anti-falling pendulum block 103, so that the anti-falling pendulum block 103 can no longer rotate to avoid the anti-falling cross column 201, so as to prevent the scaffolding from continuing to rise and fall, and allow the staff to promptly inspect or replace the anti-falling pendulum block 103. After the anti-falling pendulum block 103 is offset, it may not be able to fully prevent it from falling. At this time, after the anti-falling cross column 201 above falls on the anti-falling pendulum block 103, the limit bracket 906 and the limit stopper 905 cooperate to limit the anti-falling pendulum block 103, and it itself cannot move horizontally, which not only causes the anti-falling pendulum block 103 to block the anti-falling cross column 201,It can also limit the movement of the horizontal plate 901, so that the abutment frame 902 always abuts against the ratchet teeth of the ratchet ring 702, preventing the anti-tilt guide column 7 from rotating when the frame guide rail 2 moves up, increasing the friction force when the frame guide rail 2 moves up and falls, improving the success rate of anti-falling, and allowing the staff to have enough reaction time to determine whether the anti-falling pendulum block 103 needs to be repaired.

[0044] See also Figure 8 In another embodiment of the present invention, both sides of the anti-tilt guide column 7 are fixedly sleeved with toothed rings 708, the ratchet ring 702 is located between the two toothed rings 708, and both sides of the inner wall of the frame guide rail 2 are fixedly connected with racks 205 meshing with the toothed rings 708. Specifically, when the frame guide rail 2 is lifted, the cooperation of the rack 205 and the toothed ring 708 is used to drive the anti-tilt guide column 7 to rotate counterclockwise, so that the anti-tilt guide column 7 will not slip when rotating, and it can ensure that the ratchet ring 702 can press against the elastic The abutment 9 moves back and forth, and the number of times the elastic abutment 9 moves back and forth will not decrease. At the same time, if the frame guide rail 2 falls accidentally, it will drive the anti-tilt guide column 7 to rotate clockwise, and the abutment frame 902 can be used to clamp the ratchet on the ratchet ring 702. Since the teeth on the toothed ring 708 can block the rack 205 on the frame guide rail 2, after the anti-tilt guide column 7 is restricted from rotating, the toothed ring 708 can be used to limit the height of the frame guide rail 2 to prevent the frame guide rail 2 from continuing to fall.

[0045] In a further embodiment of the present invention, one end of the elastic abutment 9 is fixedly connected to a cleaning mechanism 10. When the anti-tilt guide column 7 rotates to drive the elastic abutment 9 to move back and forth, the cleaning mechanism 10 is used to clean the connection between the wall-mounted support 1 and the unloading support mechanism 3. Specifically, an inclined support frame 109 is installed between the wall-mounted support 1 and the connecting frame 102. The cleaning mechanism 10 includes a toggle frame 1001 rotatably installed in the inclined support frame 109, a cleaning brush 1002 is installed in the toggle frame 1001, and a transmission is provided at the bottom of the inner wall of the toggle frame 1001. The movable teeth 1003 and the bottom side of the cross plate 901 are fixedly connected with a transmission tooth plate 907 meshing with the transmission teeth 1003. When the elastic abutment 9 moves back and forth, the cross plate 901 in the elastic abutment 9 will drive the transmission teeth 1003 to rotate through the transmission tooth plate 907, so that the toggle frame 1001 can rotate back and forth and use the cleaning brush 1002 to remove debris and clean the hinge between the cross bar and the wall support 1, to ensure that the active area of ​​the support rod 301 will not accumulate construction waste, and to avoid jamming when the unloading support mechanism 3 is in use.

[0046] Only some exemplary embodiments of the present invention have been described by way of illustration. Undoubtedly, those of ordinary skill in the art can modify the described embodiments in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A scaffolding safety anti-falling lifting device, comprising an attached wall support (1) and a frame guide rail (2), wherein a plurality of anti-falling cross columns (201) are installed in the frame guide rail (2), and it is characterized in that, It further includes: A load-unloading support mechanism (3), which is hinged to the wall-attached support (1), jacks up the anti-falling cross column (201) in the frame guide rail (2), and an elastic reset component (4) is installed between the load-unloading support mechanism (3) and the wall-attached support (1); The load-unloading support mechanism (3) includes a support rod (301) hinged to the wall-attached support (1), and a clamping block (302) for the anti-falling cross column (201) to enter is fixedly connected to the top end of the support rod (301); The elastic reset component (4) includes a reset spring (401). One end of the reset spring (401) is fixedly connected to the wall-attached support (1), and a collar (402) is installed at the other end. A connecting rod (303) penetrating through the collar (402) is fixedly connected to the outside of the support rod (301); A gravity reset component (5), which is installed on the load-unloading support mechanism (3) and is movably connected to the wall-attached support (1). The gravity reset component (5) includes insertion rods (501) symmetrically inserted into the wall-attached support (1). A guide rail (502) is horizontally fixedly connected to the top of the insertion rod (501). The end of the connecting rod (303) is located in the rail groove of the guide rail (502). The bottoms of the two insertion rods (501) penetrate through the wall-attached support (1) and are fixedly connected to the same counterweight block (503); When the frame guide rail (2) rises, multiple anti-falling cross columns (201) on the frame guide rail (2) sequentially push open the load-unloading support mechanism (3), and under the action of the elastic reset component (4) and the gravity reset component (5), the load-unloading support mechanism (3) will be reset in time and jack up the anti-falling cross column (201).

2. The safety anti-falling lifting device for a scaffold according to claim 1, wherein A tension spring (504) is sleeved outside the insertion rod (501). The two ends of the tension spring (504) are respectively fixedly connected to the guide rail (502) and the wall-attached support (1), and are used to pull the guide rail (502) to force the load-unloading support mechanism (3) to reset.

3. A scaffolding safety anti-falling lifting device according to claim 1, characterized in that, One ends of the two guide rails (502) are fixedly connected to the same insertion plate (505), and a slot (101) matching the insertion plate (505) is installed on the inner side of the wall-attached support (1).

4. A scaffolding safety anti-falling lifting device according to claim 1, characterized in that, An electric hoist (6) is hung outside the frame guide rail (2). A pulling chain (601) is wound in the electric hoist (6), and the end of the pulling chain (601) bypasses the bottom of the frame guide rail (2) and is then hung on the wall-attached support (1).

5. A scaffolding safety anti-falling lifting device according to claim 1, characterized in that, An anti-tilting guide column (7) and an anti-tilting guide wheel (8) are rotatably installed in the wall-attached support (1), and the two are respectively abutted against both sides of the frame guide rail (2). End caps (701) are symmetrically and elastically sleeved on the shaft of the anti-tilting guide column (7), and one side of the end cap (701) is in abutting connection with the end face of the anti-tilting guide column (7) through helical teeth. If the frame guide rail (2) accidentally drops, it will drive the anti-tilting guide column (7) to rotate, and the helical teeth on the anti-tilting guide column (7) are used to push open the end caps (701) on both sides, so that the other side of the end cap (701) abuts against the inner wall of the wall-attached support (1) to complete braking.

6. The safety anti-falling lifting device for a scaffolding according to claim 5, characterized in that, A connecting frame (102) is fixedly connected to the bottom of the wall-attached support (1). An anti-falling pendulum block (103) is elastically hinged in the connecting frame (102). An elastic abutting member (9) is horizontally installed through the connecting frame (102). A ratchet ring (702) is fixedly sleeved outside the anti-tilting guide post (7). The elastic abutting member (9) abuts against the ratchet ring (702) and the anti-falling pendulum block (103) respectively.

7. A scaffolding safety anti-falling lifting device according to claim 6, characterized in that, One end of the elastic abutting member (9) is fixedly connected with a cleaning mechanism (10). When the anti-tilting guide post (7) rotates to drive the elastic abutting member (9) to move back and forth, the cleaning mechanism (10) is used to clean the connection between the wall-attached support (1) and the unloading support mechanism (3).

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