Attached lifting scaffold with alarm device

Abstract

The utility model discloses an attached lifting scaffold with alarm device, including bearing assembly, bearing assembly includes the base, the upper end of base is installed with several upper and lower connection's support component, and support component includes the support frame fixed in the upper end center of base, and the connection between upper and lower support frame is realized through connecting component, and the rear end of support frame all is installed with the fixed component of left and right symmetry, and fixed component includes the embedded column of embedding in the wall, and the front end center fixed connection of embedded column has fixed cylinder, and the inner wall of fixed cylinder is equipped with fixed column, and fixed column is fixed in the rear end of support frame, and the outer wall of fixed cylinder is passed and is equipped with the slot hole no.

Description

Technical Field

[0001] This utility model relates to the field of scaffolding technology, specifically to an attached lifting scaffolding equipped with an alarm device. Background Technology

[0002] As a key piece of equipment in high-rise building construction, attached lifting scaffolding has been widely used in various construction projects due to its advantages such as saving turnover materials, adapting to changes in the main structure, and reducing the risks of working at heights. It is mainly fixed by a reliable connection with the building wall and can be raised and lowered as a whole according to the construction progress, providing a safe working platform for construction workers.

[0003] Ordinary attached lifting scaffolding lacks effective real-time monitoring components during long-term use. The connection points between the scaffolding and the wall are prone to loosening, wear, or failure under repeated lifting, load changes, and environmental erosion. The industry primarily relies on periodic manual inspections to assess the connection status. This method is not only labor-intensive and inefficient, but also susceptible to the influence of human experience and inspection frequency, making it difficult to accurately detect potential connection failures in real time. Furthermore, the scaffolding structure is highly integrated, resulting in poor maintenance convenience. The rigid connections between scaffolding units form a whole; when a connection point fails and requires repair or replacement, it often necessitates disassembling multiple adjacent scaffolding units to access the target point. This increases the complexity and workload of maintenance work and prolongs construction interruption time. Utility Model Content

[0004] The purpose of this utility model is to provide an attached lifting scaffold equipped with an alarm device, which has the advantages of real-time monitoring of connection status and automatic alarm, and convenient modular maintenance. It solves the problem in the prior art that the lack of effective monitoring means leads to cumbersome manual inspection and difficulty in timely detection of potential connection failures.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An attached lifting scaffold equipped with an alarm device includes a load-bearing component. The load-bearing component includes a base, and several vertically connected support components are installed on the upper end of the base. Each support component includes a support frame fixed to the center of the upper end of the base. The upper and lower support frames are connected by a connecting component. Each support frame has a symmetrical fixing component installed at its rear end. The fixing component includes a pre-embedded column embedded in the wall. A fixing cylinder is fixed to the center of the front end of the pre-embedded column. The inner wall of the fixing cylinder has a fixing column, which is fixed to the rear end of the support frame. The outer wall of the fixing cylinder has a through-hole 1, and the outer wall of the fixing column has a through-hole 2. The first and second slots correspond to each other. A fixing bolt 1 is installed in the first slot. The end of the fixing bolt 1 passes through the inner wall of the first and second slots and is fixed to the outer wall of the fixing cylinder. A pressure sensor is fixed to the inner wall of the rear end of the fixing cylinder. A spring is fixed to the rear end of the fixing column. A contact piece is fixed to the rear end of the spring. The rear end of the contact piece is attached to the output end of the pressure sensor.

[0006] Preferably, the support component also includes a protective tube fixed to the rear edge of the base, and an alarm at equal intervals above and below is fixed inside the protective tube. The alarm corresponds to the pressure sensor and is electrically connected.

[0007] It is worth noting that the protective tube can protect and support the alarm, which can be activated by the pressure sensor to alert workers that the fixed component connection at that location has failed.

[0008] Preferably, a fixing frame is fixedly connected to the front end of the support frame, and clamps are installed on the outer wall of the fixing frame. The front ends of the clamps are all fixedly connected to a guide rail.

[0009] It is worth noting that the clamps can be supported by the fixing frame, and the clamps can fix the guide rail to the front end of the fixing frame, which facilitates the movement of the lifting platform. The clamps can also be removed during maintenance to quickly remove the guide rail from the support assembly.

[0010] Preferably, the outer wall of the base is fixed with several equally spaced mounting seats, and the upper end of the mounting seats is provided with mounting holes.

[0011] It is worth noting that the base can support the supporting components, and the mounting holes on the fixed base can be used with pre-embedded bolts for fixing, which improves the stability of the base and thus ensures the stability of the scaffolding installation.

[0012] Preferably, the connecting component includes a first connecting column fixed to the lower end of the upper support frame and symmetrically arranged on both sides, and a second connecting column fixed to the upper end of the lower support frame and symmetrically arranged on both sides; the lower end of the first connecting column is fixedly connected to a locking block, and the upper end of the second connecting column is fixedly connected to a locking groove, the locking groove being compatible with the locking block.

[0013] It is worth noting that the support components can be connected vertically using the connecting components. The slots and blocks can be used to quickly connect connecting column one and connecting column two, thereby connecting adjacent support frames.

[0014] Preferably, the outer wall of the connecting column 1 has a through hole 1, and the outer wall of the connecting column 1 is slidably fitted with a fixing sleeve. The outer wall of the fixing sleeve has through holes 2 and 3 distributed vertically. Hole 2 corresponds to hole 1. Both holes 2 and 3 are provided with fixing bolts 2. The end of the fixing bolt 2 in hole 2 passes through hole 2 and hole 1 and is fixed to the outer wall of the fixing sleeve.

[0015] It is worth noting that the fixing sleeve can be fixedly installed on the outer wall of the connecting column one through the fixing bolt two in the hole one, and it is convenient to disassemble during maintenance. The fixing sleeve can protect the connection between the connecting column one and the connecting column two, and improve the firmness of the connection between the card block and the card slot.

[0016] Preferably, a fixing hole 1 is provided through the inner wall of the rear end of the card slot, and a fixing hole 2 is provided through the inner wall of the rear end of the card block. Fixing holes 1, 2 and 3 correspond to each other. The end of fixing bolt 2 in hole 3 passes through hole 3, fixing hole 2 and fixing hole 1 and is fixed to the outer wall of the fixing sleeve.

[0017] It is worth noting that the fixing bolt 2 inside hole 3 can pass through fixing hole 1 and fixing hole 2. With the fixing sleeve, the fixing block and the slot can be further connected, thereby improving the firmness of the connection between connecting column 1 and connecting column 2, and thus ensuring the reliability of the connection between the support frames.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: Real-time monitoring and accurate alarms: Through the unique combination of pressure sensors, springs, and contact plates, real-time and proactive monitoring of the connection status between the scaffolding and the wall is achieved. The preload design of the springs effectively filters out vibrations from normal operations, preventing false alarms; an alarm is only triggered when a genuine connection failure causes macroscopic displacement of the fixed column, resulting in high alarm accuracy.

[0019] Modular design and improved maintenance efficiency: This invention creatively combines an alarm system with a modular, quick-release connection structure (clamp / slot, fixing sleeve, fixing bolt 2). When the alarm of a support frame is triggered, maintenance personnel do not need to dismantle the entire scaffolding. They only need to remove the fixing bolt 2 on the fixing sleeve corresponding to the faulty support frame to quickly disassemble the support frame section along with its guide rail for inspection or replacement. This greatly shortens maintenance time, reduces losses from construction interruptions, and achieves "targeted maintenance".

[0020] Dual enhancements in safety and economy: The real-time alarm mechanism transforms safety incidents from "post-incident handling" to "pre-incident prevention," greatly improving construction safety. Modular design reduces maintenance difficulty and labor costs, extends the overall service life of the scaffolding, and brings significant economic benefits.

[0021] Compact structure and high reliability: The alarm mechanism is built into the fixed components, without occupying extra space, resulting in a compact overall structure. The mechanical connection parts (such as locking blocks and slots, and fixing sleeves) have a simple structure and high strength, ensuring the connection reliability of the scaffolding main body.

[0022] This utility model uses a base to support the support components and a connecting component to connect the support components, thus forming a scaffold. The fixed column at the rear end of the support frame can work with the fixed cylinder to fix the support frame to the wall. The pre-embedded column in the wall ensures the firmness of the fixed cylinder. The fixing bolt passes through slot one and slot two to limit and fix the fixing column in the fixed cylinder, ensuring the stability of the support frame during operation. A spring can push the contact piece to contact the output end of the pressure sensor. Since the spring can push the contact piece close to the pressure sensor, the contact piece can still contact the pressure sensor when ordinary vibration occurs, avoiding false judgment. When the connection between the fixed column and the fixed cylinder fails, the fixed column will slide in the fixed cylinder, creating a gap between the contact piece and the pressure sensor. The pressure sensor can then send a signal to indicate the connection failure. Attached Figure Description

[0023] Figure 1 This is an isometric view of the overall structure of this utility model; Figure 2 This is a three-dimensional structural breakdown diagram of the present invention; Figure 3 This is a three-dimensional structural disassembly diagram of the support component of this utility model; Figure 4 This is a three-dimensional structural disassembly diagram of the fixing component of this utility model; Figure 5 This is a three-dimensional structural disassembly diagram of the connecting component of this utility model.

[0024] Reference numerals: 101, base; 102, protective tube; 103, guide rail; 104, clamp; 105, fixing seat; 201, support frame; 202, fixing frame; 301, embedded column; 302, fixing cylinder; 303, fixing column; 304, fixing bolt one; 305, slot one; 306, slot two; 307, spring; 308, contact piece; 309, pressure sensor; 401, connecting column one; 402, connecting column two; 403, slot; 404, locking block; 405, fixing hole one; 406, fixing hole two; 407, hole one; 408, fixing sleeve; 409, fixing bolt two; 410, hole two; 411, hole three. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] To address the problems of cumbersome manual inspections and difficulty in timely detection of potential connection failures due to the lack of effective monitoring methods in existing technologies, the following technical solution is proposed. Please refer to [link / reference needed]. Figures 1-5 ; An attached lifting scaffold equipped with an alarm device includes a load-bearing component. The load-bearing component includes a base 101. Several vertically connected support components are mounted on the upper end of the base 101. Each support component includes a support frame 201 fixed to the center of the upper end of the base 101. The upper and lower support frames 201 are connected by connecting components. Symmetrical fixing components are installed at the rear ends of each support frame 201. Each fixing component includes a pre-embedded column 301 embedded in the wall. A fixing cylinder 302 is fixed to the center of the front end of each pre-embedded column 301. A fixing column 303 is provided on the inner wall of the fixing cylinder 302 and is fixed to the support frame 201. At the rear end of 1, a slot 305 is provided through the outer wall of the fixed cylinder 302, and a slot 306 is provided through the outer wall of the fixed column 303. The slot 305 and the slot 306 correspond to each other. A fixing bolt 304 is provided in the slot 305. The end of the fixing bolt 304 passes through the inner wall of the slot 305 and the slot 306 and is fixed to the outer wall of the fixed cylinder 302. A pressure sensor 309 is fixedly connected to the inner wall of the rear end of the fixed cylinder 302. A spring 307 is fixedly connected to the rear end of the fixed column 303. A contact piece 308 is fixedly connected to the rear end of the spring 307. The rear end of the contact piece 308 is attached to the output end of the pressure sensor 309.

[0027] The base 101 supports the supporting components, and the connecting components connect the supporting components to form scaffolding. The fixed column 303 at the rear end of the support frame 201, in conjunction with the fixed cylinder 302, secures the support frame 201 to the wall. The pre-embedded column 301 within the wall ensures the stability of the fixed cylinder 302. A fixing bolt 304 passes through slots 305 and 306, thus limiting and fixing the fixing column 303 within the fixed cylinder 302, ensuring the stability of the support frame 201 during operation. Spring 307 can push contact piece 308 to fit against the output end of pressure sensor 309. Since spring 307 can push contact piece 308 close to pressure sensor 309, contact piece 308 can still fit against pressure sensor 309 when normal vibration occurs, avoiding misjudgment. When the connection between fixed post 303 and fixed cylinder 302 fails, fixed post 303 will slide inside fixed cylinder 302, causing a gap between contact piece 308 and pressure sensor 309. Pressure sensor 309 can then send a signal to indicate that the connection has failed.

[0028] Please see Figure 2 and Figure 3 The supporting component also includes a protective tube 102 fixed to the rear edge of the base 101. An alarm with equal vertical spacing is fixed inside the protective tube 102. The alarm corresponds to and is electrically connected to the pressure sensor 309. The protective tube 102 can protect and support the alarm. The alarm can sound an alarm under the control of the pressure sensor 309 to remind the worker that the connection of the fixed component at that location has failed. A fixed frame 202 is fixed to the front end of the support frame 201. The outer wall of the fixed frame 202 is equipped with clamps 104. The front end of the clamps 104 is fixed to the guide rail 103. The fixed frame 202 can support the clamps 104. The clamps 104 can fix the guide rail 103 to the front end of the fixed frame 202, thereby facilitating the movement of the lifting platform. The clamps 104 can be removed during maintenance to quickly remove the guide rail 103 from the supporting component.

[0029] The outer wall of the base 101 is fixed with several equally spaced fixed seats 105, and the upper end of the fixed seat 105 is provided with a mounting hole. The base 101 can support the support components, and the mounting holes on the fixed seats 105 can be used with pre-embedded bolts for fixing, thereby improving the stability of the base 101 and ensuring the stability of the scaffolding installation.

[0030] Please see Figure 5The connecting assembly includes a first connecting column 401 fixed to the lower end of the upper support frame 201 and symmetrically arranged on both sides, and a second connecting column 402 fixed to the upper end of the lower support frame 201 and symmetrically arranged on both sides. A locking block 404 is fixed to the lower end of the first connecting column 401, and a locking groove 403 is fixed to the upper end of the second connecting column 402. The locking groove 403 and the locking block 404 are compatible. The connecting assembly can connect the support components vertically. The locking groove 403 and the locking block 404 can quickly connect the first connecting column 401 and the second connecting column 402, thereby connecting the upper and lower adjacent support frames 201.

[0031] A hole 407 is provided through the outer wall of the connecting post 401. A fixing sleeve 408 is slidably fitted on the outer wall of the connecting post 401. A hole 410 and a hole 411 are provided through the outer wall of the fixing sleeve 408, which are distributed vertically. Hole 410 corresponds to hole 407. A fixing bolt 409 is provided in both hole 410 and hole 411. The end of the fixing bolt 409 in hole 410 passes through hole 410 and hole 407 and is fixed to the outer wall of the fixing sleeve 408. The fixing sleeve 408 can be fixedly installed on the outer wall of the connecting post 401 through the fixing bolt 409 in hole 407, and can be easily disassembled during maintenance. The fixing sleeve 408 can protect the connection between the connecting post 401 and the connecting post 402 and improve the firmness of the connection between the locking block 404 and the locking groove 403.

[0032] A fixing hole 405 is provided through the inner wall of the rear end of the slot 403, and a fixing hole 406 is provided through the inner wall of the rear end of the block 404. The fixing holes 405, 406 and 411 correspond to each other. The end of the fixing bolt 409 in the hole 411 passes through the hole 411, the fixing hole 406 and the fixing hole 405 and is fixed to the outer wall of the fixing sleeve 408. The fixing bolt 409 in the hole 411 can pass through the fixing holes 405 and 406. With the fixing sleeve 408, the fixing block 404 and the slot 403 can be further connected, thereby improving the firmness of the connection between the connecting post 401 and the connecting post 402, and thus ensuring the reliability of the connection between the support frames 201.

[0033] Working principle: Initial installation stage: Foundation fixing and component splicing. First, the base 101 of the load-bearing component is fixed: through the fixing seats 105 that are equidistantly surrounding the outer wall of the base 101, the mounting holes opened at the upper end of the fixing seats 105 are used in conjunction with the pre-embedded bolts to firmly install the base 101 in the designated position, providing a stable support foundation for the entire scaffolding and preventing the base 101 from shifting during subsequent use.

[0034] Next, the upper and lower support components are connected. Adjacent support frames 201 are spliced ​​using these connecting components. Connecting post 401 at the lower end of the upper support frame 201 is aligned with connecting post 402 at the upper end of the lower support frame 201, allowing the locking block 404 at the lower end of connecting post 401 to embed into the locking groove 403 at the upper end of connecting post 402 (the locking groove 403 and locking block 404 are compatible for quick positioning). Then, the fixing sleeve 408 is slidably fitted onto the outer wall of connecting post 401, so that the hole 410 on the fixing sleeve 408 aligns with the connecting post. Align the first hole 407 of the first 401, insert the second fixing bolt 409 and fix it to the outer wall of the fixing sleeve 408 to complete the initial installation of the fixing sleeve 408; then align the third hole 411 of the fixing sleeve 408 with the first fixing hole 405 at the rear end of the slot 403 and the second fixing hole 406 at the rear end of the block 404, insert another set of second fixing bolts 409 and fix it, which not only protects the connection between the first connecting post 401 and the second connecting post 402, but also strengthens the connection between the block 404 and the slot 403, ensuring the overall stability of the support assembly.

[0035] Wall fixing and auxiliary structure installation stage: Positioning and functional adaptation. The support frame 201 is connected to the wall through fixing components. The fixing post 303 at the rear end of the support frame 201 is inserted into the fixing cylinder 302 at the front end of the pre-embedded post 301 in the wall, so that the first slot 305 of the fixing cylinder 302 is aligned with the second slot 306 of the fixing post 303. The first fixing bolt 304 is inserted and fixed to the outer wall of the fixing cylinder 302, limiting the fixing post 303 inside the fixing cylinder 302 to prevent the support frame 201 from shaking. At the same time, the spring 307 at the rear end of the fixing post 303 pushes the contact piece 308, so that the contact piece 308 always fits against the output end of the pressure sensor 309 on the inner wall of the rear end of the fixing cylinder 302. The elastic buffer of the spring 307 keeps the contact piece 308 and the pressure sensor 309 in contact during normal vibration to prevent misjudgment.

[0036] Installation and protection of guide rail 103: A clamp 104 is installed on the outer wall of the fixed frame 202 at the front end of the support frame 201. The guide rail 103 is fixed to the front end of the fixed frame 202 by the clamp 104, providing a moving track for the lifting platform. During subsequent maintenance, the clamp 104 can be removed to quickly disassemble the guide rail 103, improving maintenance convenience. At the same time, the protective tube 102 at the rear edge of the base 101 protects the alarms installed at equal intervals inside. The alarms correspond one-to-one with the pressure sensors 309 and are electrically connected, preparing for subsequent alarm functions.

[0037] Normal operation phase: Lifting operation and stability monitoring. The lifting platform moves along the guide rail 103 to realize the lifting and transportation of personnel or materials. During this process, the base 101 continuously bears the support components and the load above through the fixed structure of the fixed seat 105. The fixed sleeve 408 and the second fixed bolt 409 of the connecting components keep the splicing of the support components stable. The cooperation of the first fixed bolt 304, the fixed column 303 and the fixed cylinder 302 of the fixed components ensures the reliable connection between the support frame 201 and the wall. The pressure sensor 309 monitors the pressure signal of the contact piece 308 in real time. If the signal is stable, it indicates that the connection of the fixed components is normal and the equipment continues to operate.

[0038] Abnormal alarm stage: Connection failure warning. When the connection of the fixing component fails (such as the fixing bolt 304 becoming loose, or the gap between the fixing post 303 and the fixing cylinder 302 increasing), the fixing post 303 will slide inside the fixing cylinder 302, causing the spring 307 at the rear end of the fixing post 303 to stretch or compress, and a gap will be generated between the contact piece 308 and the pressure sensor 309. The pressure sensor 309 detects the interruption or abnormality of the pressure signal and immediately sends an electrical signal to the alarm in the corresponding protective tube 102. The alarm sounds, reminding the operator that the connection of the fixing component at this point has failed and that the machine needs to be stopped for maintenance in time to avoid safety accidents.

[0039] This utility model uses a base to support the support components and a connecting component to connect the support components, thus forming a scaffold. The fixed column at the rear end of the support frame can work with the fixed cylinder to fix the support frame to the wall. The pre-embedded column in the wall ensures the firmness of the fixed cylinder. The fixing bolt passes through slot one and slot two to limit and fix the fixing column in the fixed cylinder, ensuring the stability of the support frame during operation. A spring can push the contact piece to contact the output end of the pressure sensor. Since the spring can push the contact piece close to the pressure sensor, the contact piece can still contact the pressure sensor when ordinary vibration occurs, avoiding false judgment. When the connection between the fixed column and the fixed cylinder fails, the fixed column will slide in the fixed cylinder, creating a gap between the contact piece and the pressure sensor. The pressure sensor can then send a signal to indicate the connection failure.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. Apparatus for attaching an alarm device to a suspended scaffolding, comprising a load bearing assembly, characterised in that, The supporting components include a base (101), and several vertically connected support components are installed on the upper end of the base (101). Each support component includes a support frame (201) fixed to the center of the upper end of the base (101). The upper and lower support frames (201) are connected by a connecting component. Each support frame (201) has a left-right symmetrical fixing component installed at its rear end. The fixing component includes a pre-embedded column (301) embedded in the wall. A fixing cylinder (302) is fixed to the center of the front end of the pre-embedded column (301). The inner wall of the fixing cylinder (302) is provided with a fixing column (303). The fixing column (303) is fixed to the rear end of the support frame (201). The outer wall of the fixing cylinder (302) is open through. The device has a slot 1 (305) and a slot 2 (306) through the outer wall of the fixing column (303). The slot 1 (305) and the slot 2 (306) correspond to each other. A fixing bolt 1 (304) is provided in the slot 1 (305). The end of the fixing bolt 1 (304) passes through the inner wall of the slot 1 (305) and the slot 2 (306) and is fixed to the outer wall of the fixing cylinder (302). A pressure sensor (309) is fixed to the inner wall of the rear end of the fixing cylinder (302). A spring (307) is fixed to the rear end of the fixing column (303). A contact piece (308) is fixed to the rear end of the spring (307). The rear end of the contact piece (308) is attached to the output end of the pressure sensor (309).

2. The attached lifting scaffold equipped with an alarm device according to claim 1, characterized in that, The support assembly also includes a protective tube (102) fixed to the rear edge of the base (101). Inside the protective tube (102) are equidistant alarms, which correspond one-to-one with the pressure sensors (309) and are electrically connected.

3. The mobile elevated working platform according to claim 1, wherein the alarm device is arranged to be activated by a user of the mobile elevated working platform. The front end of the support frame (201) is fixedly connected to a fixed frame (202), and the outer wall of the fixed frame (202) is equipped with clamps (104), and the front end of the clamps (104) is fixedly connected to a guide rail (103).

4. The mobile elevated working platform according to claim 1, wherein the alarm device is arranged to be activated by a user of the mobile elevated working platform. The outer wall of the base (101) is fixed with several fixed seats (105) that are equidistantly arranged around it, and the upper end of the fixed seat (105) is provided with a mounting hole.

5. The mobile elevated working platform according to claim 1, wherein, The connecting assembly includes a first connecting column (401) fixed to the lower end of the upper support frame (201) and symmetrically connected to the left and right, and a second connecting column (402) fixed to the upper end of the lower support frame (201) and symmetrically connected to the left and right; the lower end of the first connecting column (401) is fixedly connected to a locking block (404), and the upper end of the second connecting column (402) is fixedly connected to a locking groove (403), the locking groove (403) and the locking block (404) are compatible.

6. The suspended scaffolding as claimed in claim 5, wherein, The outer wall of the connecting column 1 (401) is provided with a hole 1 (407). The outer wall of the connecting column 1 (401) is provided with a fixed sleeve (408). The outer wall of the fixed sleeve (408) is provided with holes 2 (410) and 3 (411) distributed vertically. Hole 2 (410) corresponds to hole 1 (407). Both hole 2 (410) and hole 3 (411) are provided with fixing bolt 2 (409). The end of fixing bolt 2 (409) in hole 2 (410) passes through hole 2 (410) and hole 1 (407) and is fixed to the outer wall of the fixed sleeve (408).

7. The suspended access tower according to claim 6, wherein, The inner wall of the rear end of the slot (403) is provided with a fixing hole 1 (405), and the inner wall of the rear end of the block (404) is provided with a fixing hole 2 (406). The fixing holes 1 (405), 2 (406) and 3 (411) correspond to each other. The end of the fixing bolt 2 (409) in the hole 3 (411) passes through the hole 3 (411), 2 (406) and 1 (405) and is fixed to the outer wall of the fixing sleeve (408).

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