Rotary crawling ladder for vertical shaft channel

Abstract

The utility model discloses a rotary crawling ladder for a vertical shaft channel. The rotary crawling ladder comprises a crawling ladder access channel and a rotary crawling ladder structure, the rotary ladder stand structure comprises a well mouth ladder stand assembly and an in-well ladder stand assembly. The well mouth ladder stand assembly comprises a first ladder stand, a first rest platform and a well mouth supporting and reinforcing system. The in-well crawling ladder assembly comprises a plurality of second crawling ladders, a second rest platform and an in-well supporting and reinforcing system. According to the rotary ladder stand structure, the well mouth supporting and reinforcing system and the in-well supporting and reinforcing system are used for supporting and reinforcing, the stability of the whole rotary ladder stand is improved, and the rotary ladder stand structure can be erected layer by layer along with excavation of the vertical shaft; a mode of excavating one layer, erecting one layer and accepting one layer is adopted, and inspection and maintenance are carried out regularly, so that the access safety of constructors is ensured, and the use safety is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the pit construction technical field especially is related to a vertical shaft passageway is with rotating ladder. BACKGROUND

[0002] In the vertical shaft construction process, workers need to enter and exit the vertical shaft for construction. In traditional construction, a 6-meter long steel ladder is erected to facilitate the workers' entry and exit. However, as the depth of the vertical shaft increases, a single steel ladder cannot meet the construction requirements. Due to the insufficient safety of the simple steel ladder, safety accidents are likely to occur. In addition, using a construction elevator to replace the traditional steel ladder, although convenient to use, requires high construction requirements for the construction elevator, resulting in a longer approval time for the construction elevator and an increase in construction costs. SUMMARY

[0003] The utility model provides a vertical shaft passageway is with rotating ladder that the technical problems that the utility model wants to solve are in view of the insufficient of prior art, through setting up rotating ladder structure, utilize wellhead support reinforcement system and inside well support reinforcement system support reinforcement, improved the stability of whole rotating ladder, and rotating ladder structure can with the excavation of vertical shaft layer by layer set up, adopt excavation a layer set up a layer acceptance a layer mode and its regular inspection and maintenance, ensure that the construction personnel go in and out safety, guarantee the use safety, finally whole rotating ladder between each group is detachable connection, subsequent vertical shaft construction is complete, can dismantle whole rotating ladder, part spare parts can turn around and reuse, reduced the construction cost.

[0004] To solve the above technical problems, the utility model adopts the technical scheme: a vertical shaft passageway is with rotating ladder, characterized by: including setting in the wellhead of vertical shaft and extending into the ladder access channel of vertical shaft and with the ladder access channel is connected and along the depth direction of vertical shaft arrangement rotating ladder structure;

[0005] The ladder access channel includes an access channel support platform arranged at the wellhead of the vertical shaft and extending into the vertical shaft, and a guardrail arranged on the access channel support platform, and the access channel support platform and the guardrail are fixedly connected. The access channel support platform includes a first support horizontal rod horizontally arranged in the vertical shaft, two second support horizontal rods horizontally arranged on one side of the first support horizontal rod, an access channel table horizontally arranged on one side of the second support horizontal rod, and a vertical support rod vertically arranged at the end of the second support horizontal rod. The first support horizontal rod and the second support horizontal rod are perpendicular to each other. The first support horizontal rod, the second support horizontal rod, the access channel table and the vertical support rod are integrally formed.

[0006] The rotating ladder structure includes a wellhead ladder assembly arranged at the wellhead of the vertical shaft and an in-well ladder assembly arranged below the wellhead ladder assembly and arranged in the vertical shaft;

[0007] The wellhead ladder assembly includes a first ladder connected to the access platform and arranged at the wellhead of the vertical shaft, a first resting platform horizontally arranged at the bottom of the first ladder, and a wellhead support reinforcement system arranged at the wellhead of the vertical shaft and connected to the first ladder;

[0008] The wellhead support and reinforcement system includes a wellhead support and reinforcement unit arranged at the wellhead of the vertical shaft and a wellhead support and reinforcement frame vertically arranged at the wellhead of the vertical shaft and connected to the first climbing ladder, wherein the wellhead support and reinforcement unit and the wellhead support and reinforcement frame are detachably connected;

[0009] The shaft ladder assembly includes a plurality of second ladders arranged sequentially from top to bottom, a second resting platform horizontally arranged between two upper and lower adjacent second ladders, and a shaft support and reinforcement system arranged in the vertical shaft and connected to the second ladders;

[0010] The in-well support and reinforcement system includes a plurality of in-well support and reinforcement units arranged in sequence from top to bottom and arranged at the edge of the vertical shaft, and an in-well support and reinforcement frame connecting the second ladder and the in-well support and reinforcement units. The in-well support and reinforcement units and the in-well support and reinforcement frame are detachably connected.

[0011] The above-mentioned rotating ladder for a vertical shaft passage is characterized in that: both ends of the first support cross bar are fixed to the edge of the vertical shaft, and both ends of the first support cross bar are connected to the inner wall of the vertical shaft through a wellhead support reinforcement frame; one end of the second support cross bar is fixed to the outside of the vertical shaft through a support dowel assembly, and the other end of the second support cross bar extends into the vertical shaft and is connected to the first support cross bar, and the first support cross bar and the two second support cross bars form a π-shaped support structure; the vertical support bar is vertically arranged at the end of the second support cross bar away from the first support cross bar; the support dowel assembly includes a plurality of support dowels arranged along the length direction of the second support cross bar, and the plurality of support dowels are all arranged on the outside of the vertical shaft; a third ladder is provided on the side of the access platform away from the first support cross bar.

[0012] The above-mentioned rotary ladder for a vertical shaft passage is characterized in that: the wellhead support and reinforcement unit includes two symmetrically arranged wellhead support and reinforcement components, each of which includes a wellhead support anchor rod horizontally penetrated through the inner wall of the vertical shaft wellhead and inserted into the well ring concrete, and a wellhead support reinforcement layer covering the outside of the wellhead support anchor rod;

[0013] One end of the wellhead support anchor rod extends into the shaft, the other end of the wellhead support anchor rod extends into the well ring concrete through the inner wall of the shaft, and the end of the wellhead support anchor rod in the shaft is provided with a fixing assembly.

[0014] The wellhead support reinforcing frame includes a wellhead horizontal reinforcing frame arranged horizontally and connected with the wellhead support anchor rod, and a wellhead vertical reinforcing rod arranged vertically at four corners of the wellhead horizontal reinforcing frame, and the wellhead horizontal reinforcing frame and the wellhead vertical reinforcing rod are detachably connected.

[0015] The in-shaft support reinforcing unit includes two symmetrical in-shaft support reinforcing assemblies, the in-shaft support reinforcing assembly includes an in-shaft support anchor rod horizontally arranged in the inner wall of the shaft, an in-shaft support reinforcing layer wrapped outside the in-shaft support anchor rod and arranged on the outer wall of the shaft, and an in-shaft support reinforcing frame arranged on the inner wall of the shaft and connected with the in-shaft support anchor rod.

[0016] One end of the in-shaft support anchor rod extends into the shaft, the other end of the in-shaft support anchor rod extends to the outside of the shaft through the inner wall of the shaft, and the end of the in-shaft support anchor rod in the shaft is provided with a fixing assembly.

[0017] The in-shaft support reinforcing frame includes a plurality of in-shaft support reinforcing frame units connected in sequence from top to bottom, and the in-shaft support reinforcing frame units adjacent to each other are detachably connected; the number of the in-shaft support reinforcing units is equal to and corresponds to the number of the in-shaft support reinforcing frame units.

[0018] The in-shaft support reinforcing frame unit includes two in-shaft horizontal reinforcing frames arranged horizontally and in-shaft vertical reinforcing rods arranged vertically at four corners of the in-shaft horizontal reinforcing frame, and the in-shaft horizontal reinforcing frame and the in-shaft vertical reinforcing rod are detachably connected; the in-shaft support reinforcing frame and the in-shaft horizontal reinforcing frame below correspond to each other.

[0019] The first ladder and the second ladder are both provided with stair railings.

[0020] The fixing assembly includes nuts and spacers arranged in the shaft.

[0021] The vertical shaft access rotating ladder has the characteristics that the wellhead support reinforcing frame is a right-angled triangle frame body, one right-angled side of the wellhead support reinforcing frame is welded with the bottom of the first support horizontal rod, and the other right-angled side of the wellhead support reinforcing frame is welded with the pre-buried steel plate of the inner wall of the vertical shaft.

[0022] The wellhead support reinforcing frame is a right-angled triangle frame body, one right-angled side of the wellhead support reinforcing frame is welded with the bottom of the first support horizontal rod, and the other right-angled side of the wellhead support reinforcing frame is welded with the pre-buried steel plate of the inner wall of the vertical shaft.

[0023] The vertical shaft access rotating ladder has the characteristics that the wellhead support reinforcing frame is a right-angled triangle frame body, one right-angled side of the wellhead support reinforcing frame is welded with the bottom of the first support horizontal rod, and the other right-angled side of the wellhead support reinforcing frame is welded with the pre-buried steel plate of the inner wall of the vertical shaft.

[0024] The two wellhead horizontal reinforcing frames are connected with the corresponding wellhead support reinforcing frames.

[0025] The vertical shaft access rotating ladder has the characteristics that the wellhead support reinforcing frame is a right-angled triangle frame body, one right-angled side of the wellhead support reinforcing frame is welded with the bottom of the first support horizontal rod, and the other right-angled side of the wellhead support reinforcing frame is welded with the pre-buried steel plate of the inner wall of the vertical shaft.

[0026] The technical scheme of the vertical shaft access rotating ladder will be further described in detail below with reference to the drawings and embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 The vertical shaft access rotating ladder has the characteristics that the wellhead support reinforcing frame is a right-angled triangle frame body, one right-angled side of the wellhead support reinforcing frame is welded with the bottom of the first support horizontal rod, and the other right-angled side of the wellhead support reinforcing frame is welded with the pre-buried steel plate of the inner wall of the vertical shaft.

[0028] Figure 2 The vertical shaft access rotating ladder has the characteristics that the wellhead support reinforcing frame is a right-angled triangle frame body, one right-angled side of the wellhead support reinforcing frame is welded with the bottom of the first support horizontal rod, and the other right-angled side of the wellhead support reinforcing frame is welded with the pre-buried steel plate of the inner wall of the vertical shaft.

[0029] Figure 3 The vertical shaft access rotating ladder has the characteristics that the wellhead support reinforcing frame is a right-angled triangle frame body, one right-angled side of the wellhead support reinforcing frame is welded with the bottom of the first support horizontal rod, and the other right-angled side of the wellhead support reinforcing frame is welded with the pre-buried steel plate of the inner wall of the vertical shaft.

[0030] Figure 4The utility model discloses a connection relation schematic diagram of the inside well climbing ladder assembly and the vertical shaft.

[0031] Figure 5 The utility model discloses a connection relation schematic diagram of the inside well supporting and reinforcing assembly and the vertical shaft.

[0032] Mark explanation:

[0033] 1 - vertical shaft, 2 - protective rail, 3 - first support cross bar,

[0034] 4 - second support cross bar, 5 - access passage table, 6 - support insert,

[0035] 7 - vertical support rod, 8 - second climbing ladder, 9 - second rest platform,

[0036] 10 - inside well supporting anchor rod, 11 - inside well supporting reinforcing layer, 12 - inside well supporting reinforcing frame,

[0037] 13 - nut, 14 - backing plate, 15 - inside well vertical reinforcing rod,

[0038] 16 - transverse reinforcing rod, 17 - first climbing ladder, 18 - wellhead vertical reinforcing rod,

[0039] 19 - well ring concrete, 20 - wellhead supporting anchor rod, 21 - wellhead supporting reinforcing layer,

[0040] 22 - wellhead supporting reinforcing frame, 23 - first rest platform, 24 - reinforcing rod,

[0041] 25 - third climbing ladder, 26 - stair handrail, 27 - pre-buried steel plate. Specific implementation

[0042] As Figures 1 to 5 The utility model discloses a connection relation schematic diagram of the inside well climbing ladder assembly and the vertical shaft.

[0043] The utility model discloses a connection relation schematic diagram of the inside well climbing ladder assembly and the vertical shaft.

[0044] The rotating ladder structure comprises a wellhead ladder assembly arranged at the wellhead of the shaft 1 and an in-well ladder assembly arranged below the wellhead ladder assembly and arranged in the shaft 1;

[0045] The wellhead ladder assembly comprises a first ladder 17 connected with the access passage platform 5 and arranged at the wellhead of the shaft 1, a first rest platform 23 horizontally arranged at the bottom of the first ladder 17, and a wellhead support reinforcement system arranged at the wellhead of the shaft 1 and connected with the first ladder 17;

[0046] The wellhead support reinforcement system comprises a wellhead support reinforcement unit arranged at the wellhead of the shaft 1 and a wellhead support reinforcement frame vertically arranged at the wellhead of the shaft 1 and connected with the first ladder 17, and the wellhead support reinforcement unit and the wellhead support reinforcement frame are detachably connected;

[0047] The in-well ladder assembly comprises a plurality of second ladders 8 arranged one above another, a second rest platform 9 horizontally arranged between two adjacent second ladders 8, and an in-well support reinforcement system arranged in the shaft 1 and connected with the second ladders 8;

[0048] The in-well support reinforcement system comprises a plurality of in-well support reinforcement units arranged one above another and arranged at the edge of the shaft 1, and an in-well support reinforcement frame connected with the second ladders 8 and the in-well support reinforcement units, and the in-well support reinforcement units and the in-well support reinforcement frame are detachably connected.

[0049] In actual use, the rotating ladder structure is arranged, the wellhead support reinforcement system and the in-well support reinforcement system are used for support and reinforcement, the stability of the overall rotating ladder is improved, the rotating ladder structure can be erected layer by layer along with the excavation of the shaft 1, the method of excavating one layer, erecting one layer, and checking one layer is adopted, and the rotating ladder structure is regularly checked and maintained, so as to ensure the safety of personnel entering and leaving and ensure the safety in use; finally, the components of the overall rotating ladder are detachably connected, after the subsequent shaft 1 construction is completed, the overall rotating ladder can be disassembled, part of the parts can be recycled and reused, and the construction cost is reduced.

[0050] It needs to be explained that the second ladder 8 at the bottom is a hanging ladder, and the second ladder 8 above is hung on the transverse reinforcing rod 16 of the horizontal reinforcing frame of the shaft in the bottom support reinforcing frame unit after being erected, and is fixed firmly. The second ladder 8 at the bottom is arranged as a hanging ladder so as to be disassembled at any time during shaft blasting, and the hanging ladder is hung again after each blasting. If a conventional ladder is used, the second ladder 8 at the bottom is easily damaged during shaft blasting. The first support cross bar 3, the two second support cross bars 4, the shaft mouth support reinforcing frame 22 and the shaft in support reinforcing frame 12 are all made of I-shaped steel; and the detachable connection mode of the utility model can be realized by using fasteners.

[0051] As shown in Figure 1 , Figure 2 and Figure 3 , in the embodiment, the two ends of the first support cross bar 3 are fixed at the edges of the shaft 1, and the two ends of the first support cross bar 3 are connected with the inner wall of the shaft 1 through the shaft mouth support reinforcing frame 22; one end of the second support cross bar 4 is fixed at the outside of the shaft 1 through a support plug rib assembly, and the other end of the second support cross bar 4 extends into the shaft 1 and is connected with the first support cross bar 3; the first support cross bar 3 and the two second support cross bars 4 form a π-shaped support structure; the vertical support rod 7 is vertically arranged at the end of the second support cross bar 4 away from the first support cross bar 3; the support plug rib assembly comprises a plurality of support plug ribs 6 arranged along the length direction of the second support cross bar 4, and the plurality of support plug ribs 6 are arranged at the outside of the shaft 1; the third ladder 25 is arranged at the side of the access passage platform 5 away from the first support cross bar 3.

[0052] As shown in Figure 1 , in the embodiment, the shaft mouth support reinforcing unit comprises two symmetrical shaft mouth support reinforcing assemblies, the shaft mouth support reinforcing assembly comprises a shaft mouth support anchor rod 20 horizontally arranged on the shaft mouth inner wall of the shaft 1 and inserted into the shaft ring concrete 19, and a shaft mouth support reinforcing layer 21 wrapped outside the shaft mouth support anchor rod 20.

[0053] One end of the shaft mouth support anchor rod 20 extends into the shaft 1, the other end of the shaft mouth support anchor rod 20 extends into the shaft ring concrete 19 through the inner wall of the shaft 1, and the end of the shaft mouth support anchor rod 20 in the shaft 1 is provided with a fixing assembly.

[0054] As shown in Figure 1 , in the embodiment, the shaft mouth support reinforcing frame comprises a shaft mouth horizontal reinforcing frame horizontally arranged and connected with the shaft mouth support anchor rod 20 and a shaft mouth vertical reinforcing rod 18 vertically arranged at four corners of the shaft mouth horizontal reinforcing frame, and the shaft mouth horizontal reinforcing frame and the shaft mouth vertical reinforcing rod 18 are detachably connected.

[0055] As Figure 1 shown in the embodiment, the shaft support reinforcement unit comprises two symmetrical shaft support reinforcement assemblies, each of which comprises a shaft support anchor rod 10 horizontally arranged on the inner wall of the shaft 1, a shaft support reinforcement layer 11 arranged on the outer wall of the shaft 1 and covering the shaft support anchor rod 10, and a shaft support reinforcement frame 12 arranged on the inner wall of the shaft 1 and connected with the shaft support anchor rod 10.

[0056] One end of the shaft support anchor rod 10 extends into the shaft 1, and the other end of the shaft support anchor rod 10 extends to the outside of the shaft 1 through the inner wall of the shaft 1. The end of the shaft support anchor rod 10 located in the shaft 1 is provided with a fixing assembly.

[0057] In actual construction, the shaft support reinforcement layer 11 is a structure formed by grouting reinforcement to the shaft support anchor rod 10. The shaft support anchor rod 10 is a grouting anchor rod with a diameter of φ 28 mm. The shaft support anchor rod 10 is grouted with grouting liquid with a water-cement ratio of 0.33 to form the shaft support reinforcement layer 11.

[0058] As Figure 1 , Figure 4 and Figure 5 shown in the embodiment, the shaft support reinforcement frame comprises a plurality of shaft support reinforcement frame units connected in sequence from top to bottom. The two shaft support reinforcement frame units adjacent to each other are detachably connected. The number of the shaft support reinforcement units is equal to and corresponds to the number of the shaft support reinforcement frame units.

[0059] The shaft support reinforcement frame unit comprises two shaft horizontal reinforcement frames arranged horizontally and two shaft vertical reinforcement rods 15 arranged vertically at four corners of the shaft horizontal reinforcement frame. The shaft horizontal reinforcement frame and the shaft vertical reinforcement rod 15 are detachably connected. The shaft support reinforcement frame 12 corresponds to the shaft horizontal reinforcement frame located below.

[0060] In actual use, the two shaft horizontal reinforcement frames adjacent to each other are diagonally provided with a reinforcing rod 24 arranged between the two shaft vertical reinforcement rods 15.

[0061] As Figure 1 , Figure 2 and Figure 4 shown in the embodiment, the first and second ladders 17 and 8 are each provided with a stair handrail 26.

[0062] As Figure 5 shown in the embodiment, the fixing assembly comprises nuts 13 and spacers 14 arranged in the shaft 1.

[0063] As Figure 3 and Figure 5 shown, in the embodiment, the wellhead support reinforcement frame 22 is a right triangle frame body, one right angle of the wellhead support reinforcement frame 22 and the bottom of the first support horizontal rod 3 are welded and connected, the other right angle of the wellhead support reinforcement frame 22 and the embedded steel plate 27 of the inner wall of the shaft 1 are welded and connected.

[0064] The in-well support reinforcement frame 12 is a right triangle frame body, one right angle of the in-well support reinforcement frame 12 and the backing plate 14 are welded and connected, the other right angle of the in-well support reinforcement frame 12 and the inner wall of the shaft 1 are close.

[0065] As Figure 1 , Figure 4 and Figure 5 shown, in the embodiment, the wellhead horizontal reinforcement frame and the in-well horizontal reinforcement frame are both frames surrounded by four transverse reinforcement rods 16 connected in sequence, the four transverse reinforcement rods 16 are detachably connected.

[0066] Among the two in-well horizontal reinforcement frames, the lower in-well horizontal reinforcement frame is connected with the corresponding in-well support reinforcement frame 12, among the lower in-well horizontal reinforcement frame, two transverse reinforcement rods 16 arranged along the width direction of the in-well horizontal reinforcement frame are connected with the in-well support reinforcement frame 12, and the end of the two transverse reinforcement rods 16 arranged along the width direction of the in-well horizontal reinforcement frame is detachably connected with the in-well support reinforcement frame 12.

[0067] The above is only a preferred embodiment of the present application, and does not limit the present application, any simple modification, change and equivalent structure change according to the technical essence of the present application to the above embodiment are still within the protection scope of the technical scheme of the present application.

Claims

1. A rotating cat ladder for a shaftway, characterized by: The application relates to a vertical shaft ladder structure, which comprises a ladder access channel arranged at the well mouth of a vertical shaft (1) and extending into the vertical shaft (1) and a rotating ladder structure connected with the ladder access channel and arranged along the depth direction of the vertical shaft (1). The ladder access channel comprises an access channel support platform arranged at the well mouth of the vertical shaft (1) and extending into the vertical shaft (1) and a protective fence (2) arranged on the access channel support platform and fixedly connected between the access channel support platform and the protective fence (2); the access channel support platform comprises a first support horizontal rod (3) horizontally arranged in the vertical shaft (1), two second support horizontal rods (4) horizontally arranged on one side of the first support horizontal rod (3), an access channel table (5) horizontally arranged on one second support horizontal rod (4), and vertical support rods (7) vertically arranged at the ends of the second support horizontal rods (4); the first support horizontal rod (3) and the second support horizontal rod (4) are perpendicular to each other; the first support horizontal rod (3), the second support horizontal rod (4), the access channel table (5) and the vertical support rods (7) are integrally formed. The rotating ladder structure comprises a well mouth ladder assembly arranged at the well mouth of the vertical shaft (1) and an in-well ladder assembly arranged below the well mouth ladder assembly and arranged in the vertical shaft (1). The well mouth ladder assembly comprises a first ladder (17) connected with the access channel table (5) and arranged at the well mouth of the vertical shaft (1), a first rest platform (23) horizontally arranged at the bottom of the first ladder (17) and a well mouth support reinforcement system arranged at the well mouth of the vertical shaft (1) and connected with the first ladder (17). The well mouth support reinforcement system comprises a well mouth support reinforcement unit arranged at the well mouth of the vertical shaft (1) and a well mouth support reinforcement frame vertically arranged at the well mouth of the vertical shaft (1) and connected with the first ladder (17); the well mouth support reinforcement unit and the well mouth support reinforcement frame are detachably connected. The in-well ladder assembly comprises a plurality of second ladders (8) arranged in sequence from top to bottom, second rest platforms (9) horizontally arranged between two adjacent second ladders (8) from top to bottom, and an in-well support reinforcement system arranged in the vertical shaft (1) and connected with the second ladders (8). The in-well support reinforcement system comprises a plurality of in-well support reinforcement units arranged in sequence from top to bottom and arranged at the edge of the vertical shaft (1) and an in-well support reinforcement frame connected with the second ladders (8) and the in-well support reinforcement units; the in-well support reinforcement units and the in-well support reinforcement frame are detachably connected.

2. A rotating cat ladder for a shaft access according to claim 1, characterized in that: Both ends of the first support crossbar (3) are fixed on the edge of the shaft (1), and both ends of the first support crossbar (3) are connected with the inner wall of the shaft (1) through a wellhead support reinforcing frame (22); one end of the second support crossbar (4) is fixed on the outside of the shaft (1) through a support insert component, the other end of the second support crossbar (4) extends into the shaft (1) and is connected with the first support crossbar (3), and the first support crossbar (3) and the two second support crossbars (4) form a π-shaped support structure; the vertical support rod (7) is vertically arranged at the end of the second support crossbar (4) away from the first support crossbar (3); the support insert component comprises a plurality of support inserts (6) arranged along the length direction of the second support crossbar (4), and the plurality of support inserts (6) are arranged on the outside of the shaft (1); the access passage platform (5) is provided with a third crawling ladder (25) on the side away from the first support crossbar (3).

3. A rotating cat ladder for a shaftway according to claim 2, characterized in that: The wellhead support reinforcing unit comprises two symmetrically arranged wellhead support reinforcing components, the wellhead support reinforcing component comprises a wellhead support anchor rod (20) horizontally penetrating the inner wall of the wellhead of the shaft (1) and inserted into the well ring concrete (19), and a wellhead support reinforcing layer (21) wrapped on the outer side of the wellhead support anchor rod (20); One end of the wellhead support anchor rod (20) extends into the shaft (1), the other end of the wellhead support anchor rod (20) extends into the well ring concrete (19) through the inner wall of the shaft (1), and the end of the wellhead support anchor rod (20) located in the shaft (1) is provided with a fixing component.

4. A rotating cat ladder for a shaft access according to claim 3, characterized in that: The wellhead support reinforcing frame comprises a wellhead horizontal reinforcing frame horizontally arranged and connected with the wellhead support anchor rod (20), and a wellhead vertical reinforcing rod (18) vertically arranged at four corners of the wellhead horizontal reinforcing frame, and the wellhead horizontal reinforcing frame and the wellhead vertical reinforcing rod (18) are detachably connected.

5. A rotating cat ladder for a shaftway according to claim 3, characterized in that: The in-shaft support reinforcing unit comprises two symmetrically arranged in-shaft support reinforcing components, the in-shaft support reinforcing component comprises an in-shaft support anchor rod (10) horizontally penetrating the inner wall of the shaft (1), an in-shaft support reinforcing layer (11) wrapped on the outer side of the in-shaft support anchor rod (10) and arranged on the outer wall of the shaft (1), and an in-shaft support reinforcing frame (12) arranged on the inner wall of the shaft (1) and connected with the in-shaft support anchor rod (10); One end of the in-shaft support anchor rod (10) extends into the shaft (1), the other end of the in-shaft support anchor rod (10) extends to the outside of the shaft (1) through the inner wall of the shaft (1), and the end of the in-shaft support anchor rod (10) located in the shaft (1) is provided with a fixing component.

6. A rotating cat ladder for a shaftway according to claim 5, characterized in that: The in-shaft support reinforcing frame comprises a plurality of in-shaft support reinforcing frame units connected in sequence from top to bottom, and two adjacent in-shaft support reinforcing frame units are detachably connected; the number of the in-shaft support reinforcing units is equal to and corresponds to the number of the in-shaft support reinforcing frame units. The well inner support reinforcing frame unit comprises two well inner horizontal reinforcing frames arranged horizontally and well inner vertical reinforcing rods (15) arranged vertically at four corners of the well inner horizontal reinforcing frames, and the well inner horizontal reinforcing frames and the well inner vertical reinforcing rods (15) are detachably connected; the well inner support reinforcing frame (12) and the well inner horizontal reinforcing frame located below are in one-to-one correspondence.

7. A rotating cat ladder for a shaftway according to claim 1, characterized in that: The first ladder (17) and the second ladder (8) are provided with stair railings (26).

8. A rotating cat ladder for a shaft access according to claim 6, characterized in that: The fixing assembly comprises nuts (13) and backing plates (14) arranged in the vertical shaft (1).

9. A rotating cat ladder for a shaftway according to claim 8, characterized in that: The well mouth support reinforcing frame (22) is a right-angled triangular frame body, one right-angled side of the well mouth support reinforcing frame (22) is welded and connected with the bottom of the first support horizontal rod (3), and the other right-angled side of the well mouth support reinforcing frame (22) is welded and connected with the embedded steel plate (27) of the inner wall of the vertical shaft (1). The well inner support reinforcing frame (12) is a right-angled triangular frame body, one right-angled side of the well inner support reinforcing frame (12) is welded and connected with the backing plate (14), and the other right-angled side of the well inner support reinforcing frame (12) is closely attached to the inner wall of the vertical shaft (1).

10. A rotating cat ladder for a shaftway according to claim 9, characterized in that: The well mouth horizontal reinforcing frame and the well inner horizontal reinforcing frame are both frames surrounded by four horizontal reinforcing rods (16) connected in sequence, and the four horizontal reinforcing rods (16) are detachably connected. Among the two well inner horizontal reinforcing frames, the well inner horizontal reinforcing frame located below is connected with the corresponding well inner support reinforcing frame (12); among the well inner horizontal reinforcing frame located below, two horizontal reinforcing rods (16) arranged along the width direction of the well inner horizontal reinforcing frame are connected with the well inner support reinforcing frame (12), and the end portions of the two horizontal reinforcing rods (16) arranged along the width direction of the well inner horizontal reinforcing frame are detachably connected with the well inner support reinforcing frame (12).

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