Safe operation platform for vertical shaft excavation supporting construction

Abstract

The invention relates to the related technical field of vertical shaft excavation supporting, and discloses a vertical shaft excavation supporting construction safety operation platform which is characterized in that supporting frames are installed on the surface of a lifting platform base, a bridge frame is connected between the supporting frames, and an active lifting device is installed on the surface of the bridge frame; the installation protection device is connected to the lower portion of the active lifting device, the operation platform is connected to the lower portion of the installation protection device, the installation protection device comprises a top protection plate, and four sliding cylinder devices are arranged on the surface of the top protection plate in an array mode; according to the construction method, the operation safety can be greatly enhanced, the risks of rockfall, soil block sliding and the like are effectively restrained by isolating the excavation area from the operation platform, and the safety of field personnel and equipment below is ensured. More importantly, temporary stable support is provided for an unstable soil body or a rock stratum in the excavation process, and for vertical shaft excavation under deep or complex geological conditions.

Description

Technical Field

[0001] The present invention belongs to the technical field related to shaft excavation support, and more specifically, particularly relates to a safety operation platform for shaft excavation support construction. Background Art

[0002] With the acceleration of urbanization and the increase in demand for infrastructure construction, the development and utilization of underground space has become increasingly important. This includes the construction of subways, tunnels, underground pipelines, underground parking lots, etc., and these projects often require vertical shafts to achieve construction access at different depths and ventilation, slag discharge and other needs, which has promoted the development of vertical shaft excavation and support technology. However, the vertical shaft excavation and support in the existing technology has the following defects: 1. In the prior art, the internal space of the shaft is usually narrow, and the operating space of the large crane is limited, especially when the depth is large, which may limit the type and work efficiency of the lifting equipment and increase the difficulty and risk of construction; 2. In the existing technology, the shaft excavation support will shake when using the shaft for hoisting, which will cause the plate to collide with the shaft wall, surrounding equipment or operators, thereby increasing the probability of safety accidents. This risk is particularly prominent in the shaft environment with limited space; 3. In the prior art, the shaft excavation support cannot enable the workers to quickly install the protective plate when it is shaking. This effect reduces the installation efficiency and means that more working hours are required to complete the same installation workload, which directly increases the labor cost.

[0003] Therefore, in view of this, the existing structure and deficiencies are studied and improved, and a safe operation platform for shaft excavation support construction is provided, in order to achieve a more practical and valuable purpose. Summary of the invention

[0004] The present invention provides a safe operation platform for shaft excavation support construction, which is used to overcome the above-mentioned defects in the prior art.

[0005] The purpose and effect of the safe operation platform for shaft excavation support construction of the present invention are achieved by the following specific technical means: A safety operation platform for shaft excavation support construction, comprising a platform base, a support frame, a bridge frame, an active lifting device, an installation protection device and an operation platform, wherein the support frame is installed on the surface of the platform base, the bridge frame is connected between the support frames, an active lifting device is installed on the surface of the bridge frame, the installation protection device is connected below the active lifting device, the installation protection device is connected below the operation platform, the installation protection device comprises a top guard plate, four sliding cylinder devices are arranged in an array on the surface of the top guard plate, a fixed steel cable is slidably arranged on the surface of the sliding cylinder device, and the top guard plate is provided with a plurality of sliding cylinder devices, wherein ... The lower surface of the plate is symmetrically installed with side end rods, the ends of the side end rods are connected with side end blocks, an air pressure barrel is connected between the side end blocks, an extrusion cylinder is arranged inside the air pressure barrel, an air pipe and an upward piston are slidably arranged inside the extrusion cylinder, an upper air pressure pipe is connected to the upper end of the air pipe, the upper air pressure pipe is connected to the end of the fixed steel cable, a lower air pressure pipe is connected to the lower surface of the upward piston, a cylinder protection shell is arranged at the lower end of the lower air pressure pipe, an air pump is installed inside the cylinder protection shell, the air pump is connected to the lower air pressure pipe, and a clamping protection device is connected to the output end of the air pump.

[0006] A further technical solution is that the clamping protection device includes a fixed plate, a fixed plate is fixedly installed on the surface of the fixed plate, a sliding gas rod is symmetrically provided on the surface of the fixed plate, a placement plate is fixedly installed on the sliding rod surface of the sliding gas rod, an extension guide rod is fixedly connected to the surface of the placement plate, and an annular bottom plate is rotatably installed on the front end of the extension guide rod.

[0007] According to a further technical solution, a fixing plate is fixedly installed on the other side of the placement plate, a clamping rod is also installed on the surface of the placement plate, a protective plate is provided at the front section of the clamping rod, and the clamping rod is symmetrically provided to form a clamping portion.

[0008] According to a further technical solution, the fixing plate is fixedly installed relative to the back side, a micro cylinder pump is fixedly installed on the surface, a telescopic rod is slidably provided on the inner side of the micro cylinder pump, and the upper end of the telescopic rod is fixedly connected to the fixing plate.

[0009] According to a further technical solution, a descending piston is provided on the surface of the micro cylinder pump, and an air pipe is connected to the descending piston, and the air pipe is connected to the air pump.

[0010] A further technical solution is that a fixing nut is provided at the front end of the fixing steel cable, a fixing buckle is fixedly connected to the front end of the fixing nut, a protective plate is slidably fixed on the surface of the fixing buckle, and a stabilizing block and a mounting block are provided on the inner surface of the protective plate.

[0011] According to a further technical solution, the stabilizing block and the fixing buckle are fixed by a buckle, and the mounting block is formed into a clamping shape by the clamping protection device.

[0012] A further technical solution is that the operating platform is provided between the annular cylinder protective shells, the operating platform includes an operating base plate, a plurality of protective columns are arrayed on the surface of the operating base plate, an upper guardrail is fixedly provided on the upper end of the protective column, and an inner circle guardrail is fixedly provided on the inner side of the upper guardrail.

[0013] According to a further technical solution, the active lifting device comprises a dual-axis drive motor, two output ends of the dual-axis drive motor are fixedly connected with a lifting shaft, and the outer side of the dual-axis drive motor is fixedly connected with a side end guard rod.

[0014] According to a further technical solution, a steel cable is slidably provided on the surface of the side guard bar and the lifting shaft, an extension plate is fixedly connected to the lower end of the steel cable, and the extension plate is fixedly connected to the top guard plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The invention discloses a safety operation platform for shaft excavation support construction, which innovatively adopts the method of installing protective plates on the lifting operation platform, which greatly enhances the safety of the operation, effectively curbs the risks of falling rocks and soil blocks sliding, and ensures the safety of the on-site personnel and the equipment below by isolating the excavation area from the operation platform. More importantly, it provides temporary and stable support for unstable soil or rock formations during the excavation process, which is a key measure to maintain the stability of the working surface for shaft excavation in deep or complex geological conditions. After the arrangement of the protective plates is completed, the platform constructs a closed and safe working space for the workers, significantly reducing external interference, which not only optimizes the working environment, but also promotes the continuous and efficient advancement of excavation and subsequent support work. In addition, the protective plates arranged around the platform define a clear passage, which greatly facilitates the transportation of materials and the passage of personnel, improves the organizational efficiency and operation order of the construction site, and avoids the time loss caused by the blockage of the passage. Moreover, this design can also effectively resist adverse weather conditions such as wind, rain and strong sunshine, creating a more comfortable working environment for the operation team, and playing a positive role in improving work efficiency and reducing the impact of weather-related shutdowns.

[0016] A shaft excavation support construction safety operation platform of the present invention adopts a pneumatic stabilization mechanism to stabilize the shaking effect of the protective plate, and the pneumatic cylinder can achieve precise control of the protective plate by adjusting the internal air pressure, which is particularly important during the handling and installation process, and it can ensure that the protective plate can move smoothly even under uneven or space-constrained conditions, reducing the risk of tilting or accidental movement, and because the pneumatic cylinder has good shock absorption characteristics, they can absorb external shocks and vibrations during the handling process, protect the protective plate from bumps and damage during transportation, and also protect the shaft wall and other structures, avoid secondary damage caused by improper handling operations, and are more efficient and labor-saving than traditional manual handling. This not only reduces the demand for manpower, but also shortens the operation cycle, which helps to advance the overall progress of the project, thereby reducing the labor intensity and risk of injury of the staff. In complex or dangerous working environments, this is particularly important, which helps to maintain the safety standards of the construction site, and the pneumatic cylinder system has strong adaptability to the working environment, whether it is a humid, dusty or underground environment with special requirements, it can work reliably to ensure the smooth progress of the handling and installation of the protective plate.

[0017] After the protective plate is placed in place, the construction personnel can directly install it on the operating platform. This installation method avoids the risks of high-altitude operation or installation in an unstable environment, reduces the probability of construction accidents, ensures the safety of personnel, and helps the construction personnel to more accurately adjust the position and angle of the protective plate, ensure the installation quality, reduce the need for subsequent adjustments, and reduce the time of carrying materials and tools back and forth. Working on the platform reduces the distance and number of workers carrying heavy objects, reduces the intensity of physical labor, improves work efficiency and also pays attention to the health of workers. In addition, workers can complete the installation work in a relatively concentrated area, which speeds up the construction progress, and managers can directly supervise the installation process on the platform, find problems immediately and guide corrections, ensure that each protective plate is installed according to the standard, improve the overall project quality, and directly install the protective plate on the operating platform by improving work efficiency and reducing potential safety accidents. It helps to reduce the overall construction time and cost, including labor cost, time cost and possible accident handling cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is a schematic diagram of the overall appearance structure of the present invention; Figure 2 It is a schematic diagram of the overall top view structure of the present invention; Figure 3 It is a schematic diagram of the overall side view structure of the present invention; Figure 4 It is a schematic diagram of the overall front structure of the present invention; Figure 5 It is a schematic diagram of the overall side section structure of the present invention; Figure 6 It is a schematic diagram of the main structure of the present invention; Figure 7 It is a schematic side view of the main structure of the present invention; Figure 8 It is a schematic front view of the main structure of the present invention.

[0021] Fig. 9 It is a schematic diagram of the overall structure of the clamping protection device 17 in the present invention.

[0022] Description of reference numerals: The base of the hanging platform 11, the support frame 12, the bridge frame 13, the active lifting device 14, the installation protection device 15, the operating platform 16, the clamping protection device 17, the double-axis drive motor 18, the lifting shaft 19, the side end guard bar 20, the steel cable 21, the extension plate 22, the top guard plate 23, the sliding cylinder device 24, the upper air pressure tube 26, the air pressure barrel 27, the lower air pressure tube 29, the cylinder protection shell 30, the operating bottom plate 31, the protection column 32, the upper guardrail 33, the inner circle guardrail 34 , protective plate 35, fixing steel cable 36, fixing nut 37, fixing buckle 38, stabilizing block 39, mounting block 40, fixing plate 41, sliding gas rod 42, placement plate 43, extension guide rod 44, fixing plate 45, micro cylinder pump 46, telescopic rod 47, fixing plate 48, annular bottom plate 49, clamping rod 51, protective plate 52, downward piston 53, air pump machine 54, air pipe 55, upward piston 56, extrusion cylinder 57, side end rod 58, side end block 59. DETAILED DESCRIPTION

[0023] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0024] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] As attached Figure 1 To Attachment Fig. 9 As shown: The present invention provides a safe operation platform for shaft excavation support construction, including a suspension platform base 11, a support frame 12, a bridge frame 13, an active lifting device 14, an installation protection device 15 and an operation platform 16. The support frame 12 is installed on the surface of the suspension platform base 11, the bridge frame 13 is connected between the support frames 12, the active lifting device 14 is installed on the surface of the bridge frame 13, the installation protection device 15 is connected below the active lifting device 14, the installation protection device 15 is connected below the operation platform 16, the installation protection device 15 includes a top guard plate 23, four sliding cylinder devices 24 are arranged on the surface of the top guard plate 23, a fixed steel cable 36 is slidably provided on the surface of the sliding cylinder device 24, and the top guard plate 23, a side end rod 58 is symmetrically installed on the lower surface, and a side end block 59 is connected to the end of the side end rod 58, and a pressure barrel 27 is connected between the side end blocks 59. An extrusion cylinder 57 is arranged inside the pressure barrel 27, and an air pipe 55 and an upward piston 56 are slidably arranged inside the extrusion cylinder 57. The upper end of the air pipe 55 is connected to an upper-layer air pressure pipe 26, and the upper-layer air pressure pipe 26 is connected to the end of the fixed steel cable 36. The lower surface of the upward piston 56 is connected to a lower-layer air pressure pipe 29, and a cylinder protection shell 30 is arranged at the lower end of the lower-layer air pressure pipe 29. An air pump 54 is installed inside the cylinder protection shell 30, and the air pump 54 is connected to the lower-layer air pressure pipe 29. The output end of the air pump 54 is connected to a clamping protection device 17.

[0027] In this embodiment: When the guard plate 35 is mounted on the clamping guard 17, the initial step is to extract the gas in the chamber of the descending piston 53 through the air pipe 55 to achieve a vacuum state, and simultaneously ensure that the extrusion cylinder 57 maintains a constant pressure level. Subsequently, the clamping guard 17 activates the suction mechanism on both sides in a balanced manner to clamp the guard plate 35 inward synchronously. This sophisticated design is intended to ensure a high degree of stability and durability throughout the clamping process.

[0028] In addition, the intervention of the upper fixed steel cable 36 is carried out synchronously, and its action triggers the operation of the upper air pressure tube 26, causing the downward piston 53 to move inside the extrusion cylinder 57 due to the relative air pressure. This mechanism further enhances the firm clamping of the protective plate 35, effectively reducing or even eliminating any shaking that may occur during the handling process, thereby improving the safety of transportation and the effectiveness of plate protection.

[0029] Preferably, the clamping protection device 17 includes a fixed plate 41, a fixed plate 45 is fixedly installed on the surface of the fixed plate 41, a sliding gas rod 42 is symmetrically provided on the surface of the fixed plate 45, a placement plate 43 is fixedly installed on the sliding rod surface of the sliding gas rod 42, an extension guide rod 44 is fixedly connected to the surface of the placement plate 43, and an annular bottom plate 49 is rotatably installed at the front end of the extension guide rod 44.

[0030] Preferably, a fixing plate 48 is fixedly installed on the other side of the placement plate 43, and a clamping rod 51 is also installed on the surface of the placement plate 43. A protective plate 52 is provided at the front section of the clamping rod 51. The clamping rod 51 is symmetrically arranged to form a clamping portion.

[0031] Preferably, the fixing plate 41 is fixedly mounted with 50 relative to the back side, the surface of 50 is fixedly mounted with a micro cylinder pump 46, a telescopic rod 47 is slidably mounted inside the micro cylinder pump 46, and the upper end of the telescopic rod 47 is fixedly connected to the fixing plate 48.

[0032] Preferably, a descending piston 53 is provided on the surface of the micro cylinder pump 46 , and an air pipe 55 is connected to the descending piston 53 , and the air pipe 55 is connected to the air pump 54 .

[0033] Preferably, a fixing nut 37 is provided at the front end of the fixing steel cable 36, a fixing buckle 38 is fixedly connected at the front end of the fixing nut 37, a protective plate 35 is slidably fixed on the surface of the fixing buckle 38, and a stabilizing block 39 and a mounting block 40 are provided on the inner surface of the protective plate 35.

[0034] Preferably, the stabilizing block 39 is fixed to the fixing buckle 38 by a buckle, and the mounting block 40 is formed into a clamping shape by the clamping protection device 17 .

[0035] Preferably, the operating platform 16 is provided between the annular cylinder protection shells 30, and the operating platform 16 includes an operating base plate 31, and a plurality of protective columns 32 are arranged in an array on the surface of the operating base plate 31. An upper guardrail 33 is fixedly provided on the upper end of the protective column 32, and an inner circle guardrail 34 is fixedly provided on the inner side of the upper guardrail 33.

[0036] Preferably, the active lifting device 14 includes a dual-axis drive motor 18 , two output ends of the dual-axis drive motor 18 are fixedly connected with a lifting shaft 19 , and the outer side of the dual-axis drive motor 18 is fixedly connected with a side end guard rod 20 .

[0037] Preferably, a steel cable 21 is slidably provided on the surface of the side guard bar 20 and the lifting shaft 19 , and an extension plate 22 is fixedly connected to the lower end of the steel cable 21 , and the extension plate 22 is fixedly connected to the top guard plate 23 .

[0038] Specific use of the present invention: When using the present invention, firstly carry out a safety inspection of the present invention. After the safety inspection is completed, the loading workers can stand between the inner circle guardrail 34 and the upper guardrail 33, and then assemble the required installation tools and installation nuts. After the assembly is completed, the protective plate 35 can be installed. When the installation is completed, firstly, the fixing buckle 38 provided on the fixing steel cable 36 and the stabilizing block 39 provided on the back of the protective plate 35 are buckled and fixed, and then the clamping rod 51 provided on the clamping protection device 17 is used to clamp and fix the installation block 40 provided at the lower end of the back of the protective plate 35. After the protective plates 35 are installed all around the present invention, the vertical shaft excavation support construction can be carried out.

[0039] During the construction of shaft excavation support, the background control system can be used to first control the bidirectional driving motor of the dual-axis driving motor 18 to rotate and drive. After the driving motor is rotated and driven, the steel cable 21 provided on the surface of the lifting shaft 19 can be freely extended and placed, and when the steel cable 21 provided on the surface of the lifting shaft 19 is simultaneously limited and slid through the side end guard bars 20 provided on both sides, after ensuring that the side end guard bars 20 are limited and slid, the top guard plate 23 will be driven to rise and fall in height, and when the top guard plate 23 is raised and lowered, it will drive the operating platform 16 to be lowered, and then when the operating platform 16 is lowered, the protective plate 35 arranged on the surface of the clamping protective device 17 and the fixing buckle 38 will be synchronously lowered.

[0040] Then, when the protective plate 35 is descending, the protective plate 35 will be firmly clamped by the fixed steel cable 36 and the clamping protective device 17. Then, when the protective plate 35 is firmly clamped, the fixed steel cable 36 set first will stabilize the gas set in the extrusion cylinder 57 through the descending piston 53, so as to realize gas pressure shock absorption. When the clamping protective device 17 clamps the protective plate 35, the clamping rod 51 set under the clamping protective device 17 will first be subjected to the downward pressure of the plate body, and the downward pressure of the plate body makes the relatively set clamping rod 51 clamp inward synchronously. After synchronous and stable clamping, the clamping rod 51 will form a mutual adsorption effect on the gas inside the extrusion cylinder 57 through the compression cylinder effect formed by the micro cylinder pump 46 and the telescopic rod 47, so as to always keep the air pressure inside the extrusion cylinder 57 in a stable state. If the background detection system detects that the air pressure inside the extrusion cylinder 57 is too high or too low during use, the air pump 54 will be used to suck or pressurize the air inside the extrusion cylinder 57 and stably control the air pressure inside the extrusion cylinder 57, so that the protective plate 35 can stabilize the air pressure when being transported downward and always maintain a stable state.

[0041] The invention discloses a safe operation platform for shaft excavation and support construction, which innovatively adopts a method of installing protective plates on a lifting operation platform. This method greatly enhances the safety of the operation, effectively curbs the risks of falling rocks and soil blocks by isolating the excavation area from the operation platform, and ensures the safety of the on-site personnel and the equipment below. More importantly, it provides temporary and stable support for unstable soil or rock formations during the excavation process. For shaft excavation in deep or complex geological conditions, this is a key measure to maintain the stability of the working surface. After the arrangement of the protective plates is completed, the platform constructs a closed and safe working space for the workers, significantly reducing external interference, which not only optimizes the working environment, but also promotes the continuous and efficient advancement of excavation and subsequent support work. In addition, the protective plates arranged around the platform define a clear passage, which greatly facilitates the transportation of materials and the passage of personnel, improves the organizational efficiency and operation order of the construction site, and avoids the time loss caused by the blockage of the passage. Moreover, this design can also effectively resist adverse weather conditions such as wind, rain and strong sunshine, creating a more comfortable working environment for the operation team, and playing a positive role in improving work efficiency and reducing the impact of weather-related shutdowns.

[0042] A shaft excavation support construction safety operation platform of the present invention adopts a pneumatic stabilization mechanism to stabilize the shaking effect of the protective plate, and the pneumatic cylinder can achieve precise control of the protective plate by adjusting the internal air pressure, which is particularly important during the handling and installation process, and it can ensure that the protective plate can move smoothly even under uneven or space-constrained conditions, reducing the risk of tilting or accidental movement, and because the pneumatic cylinder has good shock absorption characteristics, they can absorb external shocks and vibrations during the handling process, protect the protective plate from bumps and damage during transportation, and also protect the shaft wall and other structures, avoid secondary damage caused by improper handling operations, and are more efficient and labor-saving than traditional manual handling. This not only reduces the demand for manpower, but also shortens the operation cycle, which helps to advance the overall progress of the project, thereby reducing the labor intensity and risk of injury of the staff. In complex or dangerous working environments, this is particularly important, which helps to maintain the safety standards of the construction site, and the pneumatic cylinder system has strong adaptability to the working environment, whether it is a humid, dusty or underground environment with special requirements, it can work reliably to ensure the smooth progress of the handling and installation of the protective plate.

[0043] After the protective plate is placed in place, the construction personnel can directly install it on the operating platform. This installation method avoids the risks of high-altitude operation or installation in an unstable environment, reduces the probability of construction accidents, ensures the safety of personnel, and helps the construction personnel to more accurately adjust the position and angle of the protective plate, ensure the installation quality, reduce the need for subsequent adjustments, and reduce the time of carrying materials and tools back and forth. Working on the platform reduces the distance and number of workers carrying heavy objects, reduces the intensity of physical labor, improves work efficiency and also pays attention to the health of workers. In addition, workers can complete the installation work in a relatively concentrated area, which speeds up the construction progress, and managers can directly supervise the installation process on the platform, find problems immediately and guide corrections, ensure that each protective plate is installed according to the standard, improve the overall project quality, and directly install the protective plate on the operating platform by improving work efficiency and reducing potential safety accidents. It helps to reduce the overall construction time and cost, including labor cost, time cost and possible accident handling cost.

[0044] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A safe operation platform for shaft excavation support construction, characterized by: The invention comprises a platform base (11), a support frame (12), a bridge frame (13), an active lifting device (14), a mounting protection device (15) and an operating platform (16); the support frame (12) is mounted on the surface of the platform base (11); the bridge frame (13) is connected between the support frames (12); the active lifting device (14) is mounted on the surface of the bridge frame (13); the mounting protection device (15) is connected below the active lifting device (14); the operating platform (16) is connected below the mounting protection device (15); the mounting protection device (15) comprises a top guard plate (23); four sliding cylinder devices (24) are arrayed on the surface of the top guard plate (23); a fixed steel cable (36) is slidably mounted on the surface of the sliding cylinder device (24); side guard plates (36) are symmetrically mounted on the lower surface of the top guard plate (23); An end rod (58), the end of the side end rod (58) is connected to a side end block (59), an air pressure barrel (27) is connected between the side end blocks (59), an extrusion cylinder (57) is provided inside the air pressure barrel (27), an air pipe (55) and an upward piston (56) are slidably provided inside the extrusion cylinder (57), the upper end of the air pipe (55) is connected to an upper air pressure pipe (26), the upper air pressure pipe (26) is connected to the end of the fixed steel cable (36), the lower surface of the upward piston (56) is connected to a lower air pressure pipe (29), the lower end of the lower air pressure pipe (29) is provided with a cylinder protection shell (30), an air pump (54) is installed inside the cylinder protection shell (30), the air pump (54) is connected to the lower air pressure pipe (29), and the output end of the air pump (54) is connected to a clamping protection device (17).

2. A safe operation platform for shaft excavation support construction according to claim 1, characterized in that: The clamping protection device (17) comprises a fixing plate (41), a fixing plate (45) is fixedly mounted on the surface of the fixing plate (41), a sliding gas rod (42) is symmetrically mounted on the surface of the fixing plate (45), a placement plate (43) is fixedly mounted on the sliding rod surface of the sliding gas rod (42), an extension guide rod (44) is fixedly connected to the surface of the placement plate (43), and a ring-shaped bottom plate (49) is rotatably mounted on the front end of the extension guide rod (44).

3. A safe operation platform for shaft excavation support construction according to claim 2, characterized in that: A fixing plate (48) is fixedly mounted on the other side of the placement plate (43), and a clamping rod (51) is also mounted on the surface of the placement plate (43). A protective plate (52) is provided at the front section of the clamping rod (51), and the clamping rod (51) is symmetrically arranged to form a clamping portion.

4. A safe operation platform for shaft excavation support construction according to claim 3, characterized in that: The fixing plate (41) is fixedly mounted with (50) relative to the back side, and the surface of (50) is fixedly mounted with a micro cylinder pump (46). A telescopic rod (47) is slidably mounted inside the micro cylinder pump (46), and the upper end of the telescopic rod (47) is fixedly connected to the fixing plate (48).

5. A safe operation platform for shaft excavation support construction according to claim 4, characterized in that: A descending piston (53) is provided on the surface of the micro cylinder pump (46), and an air pipe (55) is connected to the descending piston (53), and the air pipe (55) is connected to the air pump (54).

6. A safe operation platform for shaft excavation support construction according to claim 1, characterized in that: A fixing nut (37) is provided at the front end of the fixing steel cable (36), a fixing buckle (38) is fixedly connected to the front end of the fixing nut (37), a protective plate (35) is slidably fixed on the surface of the fixing buckle (38), and a stabilizing block (39) and a mounting block (40) are provided on the inner surface of the protective plate (35).

7. A safe operation platform for shaft excavation support construction according to claim 6, characterized in that: The stabilizing clamping block (39) and the fixing clamping buckle (38) are fixed by a clamping method, and the mounting block (40) is formed into a clamping shape by the clamping protection device (17).

8. A safe operation platform for shaft excavation support construction according to claim 1, characterized in that: The operating platform (16) is arranged between the annular cylinder protection shells (30), and the operating platform (16) comprises an operating base plate (31). A plurality of protective columns (32) are arranged in an array on the surface of the operating base plate (31). An upper guardrail (33) is fixedly arranged on the upper end of the protective column (32), and an inner circle guardrail (34) is fixedly arranged on the inner side of the upper guardrail (33).

9. A safe operation platform for shaft excavation support construction according to claim 1, characterized in that: The active lifting device (14) comprises a dual-axis drive motor (18), two output ends of the dual-axis drive motor (18) are fixedly connected to a lifting shaft (19), and the outer side of the dual-axis drive motor (18) is fixedly connected to a side end guard rod (20).

10. A safe operation platform for shaft excavation support construction according to claim 9, characterized in that: A steel cable (21) is slidably provided on the surface of the side end guard bar (20) and the lifting shaft (19), and an extension plate (22) is fixedly connected to the lower end of the steel cable (21), and the extension plate (22) is fixedly connected to the top guard plate (23).

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