Self-locking type concrete hoistway supporting platform

Abstract

The utility model discloses a self-locking type concrete shaft supporting platform which comprises a platform supporting main beam, a platform supporting secondary beam, a turning plate lock and an operation platform. The pair of platform supporting main beams are parallel to each other and are arranged at intervals in the width direction of the elevator shaft, the plurality of platform supporting secondary beams are arranged at intervals in the length direction of the platform supporting main beams and are in lap joint with the pair of platform supporting main beams, and the working platform is arranged on the platform supporting secondary beams; the two ends of each platform supporting main beam are detachably connected with turning plate locks, grooves are reserved in the inner walls of the two sides of the elevator shaft in the length direction, and the multiple grooves are formed in the height direction of the elevator shaft at intervals, so that the turning plate locks can be hung on the inner walls of the elevator shaft through the grooves when being opened; when closed, the turning plate lock can be separated from the groove and is located in the elevator shaft. The utility model relates to the technical field of building construction, and can solve the problem that a scaffold or a temporary supporting platform needs to be fixed on the inner wall of an elevator shaft and is frequently disassembled and assembled along with the construction height change of the elevator shaft in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a self-locking concrete shaft support platform. Background Technology

[0002] Traditional elevator shaft construction typically relies on scaffolding or temporary support platforms, which in existing technologies need to be fixedly installed on the inner wall of the elevator shaft. For example, Chinese invention patent application CN112982940A discloses an elevator shaft construction platform, including a support frame and an operating platform; the operating platform includes a first platform, a second platform, an adjustment component, and a support component; the first platform is movably connected to the support frame; the second platform is movably connected to the support frame; the adjustment component connects the first platform and the second platform, and is used to drive the first platform and the second platform to move relative to each other in the horizontal direction; the support component is detachably connected to the operating platform, enabling the operating platform to be fixed to the elevator shaft wall.

[0003] Existing scaffolding or temporary support platforms within elevator shafts suffer from low construction efficiency, cumbersome installation and dismantling, and low safety. Furthermore, as the construction height of the elevator shaft changes, the height of the scaffolding or temporary support platform needs frequent adjustment, necessitating frequent dismantling and reassembly, increasing construction costs and time. Therefore, there is a need for a self-locking concrete shaft support platform that can solve the problem of existing scaffolding or temporary support platforms needing to be fixed to the inner wall of the elevator shaft and frequently dismantled and reassembled as the construction height of the elevator shaft changes. Summary of the Invention

[0004] The purpose of this utility model is to provide a self-locking concrete shaft support platform, which can solve the problem in the prior art that scaffolding or temporary support platforms need to be fixed to the inner wall of the elevator shaft and frequently disassembled and reassembled as the construction height of the elevator shaft changes.

[0005] This utility model is implemented as follows:

[0006] A self-locking concrete shaft support platform includes a main platform support beam, secondary platform support beams, a flap lock, and a working platform. The main platform support beams are arranged along the length of the elevator shaft, with a pair of main platform support beams parallel to each other and spaced apart along the width of the elevator shaft. The secondary platform support beams are vertically connected to the pair of main platform support beams, and several secondary platform support beams are spaced apart along the length of the main platform support beams. The working platform is set on several secondary platform support beams. Each main platform support beam has a flap lock detachably connected to both ends. Grooves are reserved on both sides of the inner wall along the length of the elevator shaft, and several grooves are spaced apart along the height of the elevator shaft, so that when the flap lock is open, it can be hung on the inner wall of the elevator shaft through the grooves, and when the flap lock is closed, it can disengage from the grooves and be located inside the elevator shaft.

[0007] Each of the aforementioned flip-plate locks includes a flip-plate, a flip-plate pivot, and a connecting plate; one end of the connecting plate is fixedly connected to the end of the platform support main beam, and the other end of the connecting plate has a gap with the inner wall of the elevator shaft; one end of the flip-plate is rotatably connected to the connecting plate via the flip-plate pivot on the side near the platform support main beam, and a hook-on part is formed on one end of the flip-plate near the inner wall of the elevator shaft. When the hook-on part is opened by rotating around the flip-plate pivot, it can be inserted into the groove, so that the platform support main beam is horizontally erected in the elevator shaft. When the hook-on part is closed by rotating around the flip-plate pivot, it can disengage from the groove and be located inside the elevator shaft, so that the platform support main beam can be hoisted and lifted into the elevator shaft.

[0008] The hook-up part has an inverted L-shaped structure. When the hook-up part is opened by rotating around the hinge of the flap, the bottom surface of the horizontal section of the inverted L-shaped structure is attached to the bottom surface of the groove, and the vertical section of the inverted L-shaped structure is attached to the inner wall of the elevator shaft.

[0009] The bottom surface of the horizontal section of the inverted L-shaped structure is provided with an anti-slip part, which can fit against the bottom surface of the groove.

[0010] The top surface of the groove has a first sloping structure with the inside higher than the outside; when the hook part is opened by rotating around the hinge, the top surface of the horizontal section of the inverted L-shaped structure of the hook part has a second sloping structure with the inside higher than the outside.

[0011] The other end of the flap has a self-locking abutment. When the abutment is opened by rotating around the flap's pivot, the self-locking abutment abuts against the inner wall of the elevator shaft. When the abutment is closed by rotating around the flap's pivot, the self-locking abutment rotates to the area below the connecting plate and the platform support beam.

[0012] The self-locking abutment part has an extension part at the end away from the hook part, which extends into the elevator shaft. The extension part, the self-locking abutment part, and the hook part are an integral structure.

[0013] Both the connecting plate and the platform support beam have reinforcing plates at one end, allowing the connecting plate to be detachably connected to the platform support beam via two reinforcing plates and locking devices.

[0014] The platform support main beam has several through holes spaced apart, forming a hollow main beam.

[0015] Compared with the prior art, this utility model has the following advantages:

[0016] 1. This utility model features a flap lock with a pre-reserved groove on the inner wall of the elevator shaft at the height of the construction platform. When the flap lock is rotated open, it can be hung in the groove of the elevator shaft, thus enabling the self-locking concrete shaft support platform to be stably erected and reliably locked inside the elevator shaft without the need for fixed installation to the inner wall of the elevator shaft. When the flap lock is rotated closed, it can be lifted inside the elevator shaft by hoisting equipment, eliminating the need for frequent disassembly and assembly. This improves the efficiency and quality of construction inside the elevator shaft, and the lifting and self-locking process is simple and convenient to operate.

[0017] 2. This utility model, with its hook-on part, self-locking abutment part, and extension part, features an inverted L-shaped hook-on part that fits snugly against the bottom surface of the groove and the inner wall of the elevator shaft. This ensures the stability and reliable self-locking of the self-locking concrete shaft support platform under its own weight and load. The self-locking abutment part increases the contact area with the inside of the elevator shaft, improving force transmission and self-locking reliability, thus guaranteeing the safety of the self-locking concrete shaft support platform and preventing swaying and sagging. Simultaneously, the hook-on part, self-locking abutment part, and extension part can rotate around the flap's pivot axis under their own weight or external force, ensuring that the platform can be opened without external intervention and closed under external force contacting the inner wall of the elevator shaft. This allows for flexible rotation and efficient operation.

[0018] 3. This utility model has a platform support main beam, a platform support secondary beam and a working platform. The platform support main beam with through holes and the platform support secondary beam form a load-bearing frame. The working platform is formed by laying wooden formwork. It can reduce its own weight while ensuring load-bearing capacity. It has a simple structure, is easy to disassemble and replace, and has good adaptability to elevator shafts of different sizes. Attached Figure Description

[0019] Figure 1 This is a schematic diagram illustrating the use of the self-locking concrete shaft support platform of this utility model;

[0020] Figure 2 yes Figure 1 A magnified view of a portion of the image;

[0021] Figure 3 This is a front view of the connection node between the platform support main beam and the flap lock in the self-locking concrete shaft support platform of this utility model;

[0022] Figure 4 This is a side view of the connection node between the platform support main beam and the flap lock in the self-locking concrete shaft support platform of this utility model.

[0023] In the diagram, 1 is the main beam supporting the platform, 11 is the through hole, 2 is the secondary beam supporting the platform, 3 is the flap lock, 31 is the flap, 32 is the flap pivot, 33 is the connecting plate, 34 is the hanging part, 341 is the anti-slip part, 35 is the self-locking abutment part, 36 is the extension part, 4 is the working platform, 5 is the groove, 6 is the reinforcing plate, 7 is the elevator shaft, and 8 is the locking part. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] Please see the appendix Figure 1 and attached Figure 2 A self-locking concrete shaft support platform includes a platform support main beam 1, platform support secondary beams 2, a flap lock 3, and a working platform 4. The platform support main beam 1 is arranged along the length direction of the elevator shaft 7, and a pair of platform support main beams 1 are parallel to each other and spaced apart along the width direction of the elevator shaft 7. The platform support secondary beams 2 are vertically connected to the pair of platform support main beams 1, and several platform support secondary beams 2 are spaced apart along the length direction of the platform support main beams 1. The working platform 4 is set on several platform support secondary beams 2. Each platform support main beam 1 has a flap lock 3 detachably connected to both ends. Grooves 5 are reserved on both sides of the inner wall along the length direction of the elevator shaft 7, and several grooves 5 are spaced apart along the height direction of the elevator shaft 7, so that when the flap lock 3 is open, it can be hung on the inner wall of the elevator shaft 7 through the grooves 5, and when the flap lock 3 is closed, it can be disengaged from the grooves 5 and located inside the elevator shaft 7.

[0026] A pair of platform support main beams 1 and several platform support secondary beams 2 form the load-bearing frame of the self-locking concrete shaft support platform. The working platform 4 is laid on this load-bearing frame to form an operating platform for construction inside the elevator shaft 7. The number of platform support main beams 1 and platform support secondary beams 2 can be adjusted adaptively according to actual load-bearing requirements. Flip locks 3 are installed at both ends of the pair of platform support main beams 1. The cooperation of four flip locks 3 with hoisting equipment ensures the safe erection and stable lifting of the operating platform inside the elevator shaft 7.

[0027] The gap between the connecting plate 33 and the interior of the elevator shaft 7 ensures the effective rotation of the flap lock 3. The flap lock 3 can be rotated open to be hung in the groove 5 inside the elevator shaft 7, enabling the safe installation of the operating platform within the elevator shaft 7 without needing to fix the operating platform to the inner wall of the elevator shaft 7, thus avoiding the problem of frequent disassembly and reassembly of the operating platform. The flap lock 3 can also be rotated closed, facilitating the hoisting equipment to synchronously lift the operating platform upwards within the elevator shaft 7 as the construction height increases.

[0028] Please see the appendix Figure 2 To be continued Figure 4Each of the aforementioned flap locks 3 includes a flap 31, a flap pivot 32, and a connecting plate 33; one end of the connecting plate 33 is fixedly connected to the end of the platform support main beam 1, and the other end of the connecting plate 33 has a gap with the inner wall of the elevator shaft 7; one end of the flap 31 is rotatably connected to the connecting plate 33 via the flap pivot 32 on the side near the platform support main beam 1, and a hook part 34 is formed on one end of the flap 31 near the inner wall of the elevator shaft 7. When the hook part 34 is opened by rotating around the flap pivot 32, it can be inserted into the groove 5, so that the platform support main beam 1 is horizontally erected in the elevator shaft 7. When the hook part 34 is closed by rotating around the flap pivot 32, it can disengage from the groove 5 and be located inside the elevator shaft 7, so that the platform support main beam 1 can be hoisted and lifted into the elevator shaft 7.

[0029] Preferably, the connecting plate 33 can be fixedly connected to the platform support main beam 1 by means of high-strength bolts and nuts or welding, so as to ensure the structural strength and load-bearing capacity at the connection node.

[0030] The flap 31 can rotate relative to the connecting plate 33 around the flap pivot 32. When the flap 31 and its connecting part 34 rotate into the elevator shaft 7, the flap lock 3 opens, and the connecting part 34 is hooked onto the groove 5, transferring the weight and load of the operating platform to the main structure of the elevator shaft 7 at the groove 5, ensuring the safety of the operating platform's installation. Conversely, when the flap 31 and its connecting part 34 rotate outward from the elevator shaft 7, the flap lock 3 closes, the connecting part 34 disengages from the groove 5, and the operating platform can be lifted upward by hoisting equipment.

[0031] Please see the appendix Figure 2 and attached Figure 3 The hook part 34 has an inverted L-shaped structure. When the hook part 34 is opened by rotating around the flip plate shaft 32, the bottom surface of the horizontal section of the inverted L-shaped structure is attached to the bottom surface of the groove 5, and the vertical section of the inverted L-shaped structure is attached to the inner wall of the elevator shaft 7.

[0032] Preferably, the inverted L-shaped structure of the mounting part 34 is a right-angled L-shaped structure, the bottom surface of the groove 5 is a planar structure, and the inner wall of the elevator shaft 7 is a vertical surface. This ensures effective contact between the inverted L-shaped structure of the mounting part 34 and the bottom surface of the groove 5 and the inner wall of the elevator shaft 7, resulting in a large contact area. Under the action of gravity and load, this restricts the rotation of the mounting part 34 relative to the groove 5 in both horizontal and vertical directions, and effectively transfers gravity and load to the elevator shaft 7. Furthermore, the greater the gravity and load, the greater the pressure of the mounting part 34 on the groove 5, thus achieving a reliable self-locking function and high safety.

[0033] Please see the appendix Figure 2 and attached Figure 3 The bottom surface of the horizontal section of the inverted L-shaped structure is provided with an anti-slip part 341, which can fit against the bottom surface of the groove 5.

[0034] Preferably, the anti-slip part 341 can be made of rubber material, which can effectively prevent slipping and ensure the stability of the operating platform.

[0035] Please see the appendix Figure 2 The top surface of the groove 5 has a first inclined structure with the inside higher than the outside (with the direction closer to the central axis of the elevator shaft 7 as the inside and the direction farther from the central axis of the elevator shaft 7 as the outside); when the hook part 34 is rotated and opened around the flip plate pivot 32, the top surface of the horizontal section of the inverted L-shaped structure of the hook part 34 has a second inclined structure with the inside higher than the outside.

[0036] By setting the first inclined structure and the second inclined structure, the restriction on the rotation of the hook part 34 when it is lifted upward with the entire operating platform can be reduced. At the same time, the collision between the first inclined structure and the second inclined structure during the lifting process can provide an external driving force for the rotation of the hook part 34, ensuring that the hook part 34 can rotate fully and disengage from the groove 5 during the lifting process, thereby achieving the purpose of removing the restriction and closing the rotation.

[0037] After the hook part 34 disengages from the groove 5, as the operating platform is raised, the hook part 34 slides into contact with the elevator shaft 7 through the second inclined structure, using friction to limit the rotation of the hook part 34 and ensure the stable lifting of the operating platform.

[0038] Please see the appendix Figure 2 To be continued Figure 4 The other end of the flap 31 has a self-locking abutment part 35. When the hook part 34 rotates around the flap pivot 32 to open, the self-locking abutment part 35 abuts against the inner wall of the elevator shaft 7. When the hook part 34 rotates around the flap pivot 32 to close, the self-locking abutment part 35 rotates to the bottom of the connecting plate 33 and the platform support main beam 1.

[0039] The other end of the flap 31 extends downward to form a self-locking abutment part 35, which can increase the contact area between the hook part 34 and the inner wall of the elevator shaft 7 when the hook part 34 is opened, improve the self-locking reliability, and ensure the safety and load-bearing capacity of the operating platform.

[0040] Please see the appendix Figure 2 To be continued Figure 4 The self-locking abutment part 35 has an extension part 36 formed at one end away from the hook part 34 in the direction of the elevator shaft 7. The extension part 36, the self-locking abutment part 35 and the hook part 34 are an integral structure.

[0041] The extension 36 is used to lower the center of gravity of the self-locking abutment part 35, thereby facilitating the rotation and closure of the flap 31 by gravity when the hook part 34 is lifted into the groove 5. At the same time, the extension 36 can also increase the structural strength of the self-locking abutment part 35, ensuring that the self-locking abutment part 35 does not deform or get damaged during the process of abutting against the inner wall of the elevator shaft 7 and transmitting loads.

[0042] Please see the appendix Figure 2 and attached Figure 3 Both the connecting plate 33 and the platform support main beam 1 have reinforcing plates 6 at one end, so that one end of the connecting plate 33 is detachably connected to the end of the platform support main beam 1 through the two reinforcing plates 6 and the locking member 8.

[0043] By setting the reinforcing plate 6, the structural strength and connection reliability of one end of the connecting plate 33 and the end of the platform support main beam 1 can be improved, the connection node is not easily deformed or damaged, and safety and load-bearing capacity are guaranteed.

[0044] Please see the appendix Figure 1 and attached Figure 2 The platform support main beam 1 has several through holes 11 spaced apart, forming a hollow main beam.

[0045] The size, number, and spacing of the through holes 11 can be adaptively adjusted according to the actual load-bearing capacity to ensure that the platform support main beam 1 has sufficient load-bearing capacity while reducing its self-weight.

[0046] Please see the appendix Figure 1 To be continued Figure 4 The method of use and working principle of this utility model are as follows:

[0047] I-beams with several through holes 11 spaced apart on their webs are used as the main support beam 1 of the platform, which gives the main support beam 1 sufficient structural strength and load-bearing capacity, and the main support beam 1 has a relatively small self-weight.

[0048] Square steel pipes are used as the secondary beams 2 for platform support. The secondary beams 2 are vertically welded between the two main beams 1 for platform support. The lengths of the main beams 1 and the secondary beams 2 can be determined according to the length and width of the elevator shaft 7, respectively. The number of secondary beams 2 can be determined according to the actual load requirements and the length of the main beams 1 for platform support. The specifications of the main beams 1 and the secondary beams 2 can be selected according to the load requirements.

[0049] The flap 31, connecting plate 33, hanging part 34, self-locking abutment part 35, extension part 36 and reinforcing plate 6 are all made of high-strength steel plate, the flap pivot 32 is made of high-strength steel shaft, and the locking part 8 can be made of high-strength bolts and nuts to ensure that it will not be deformed or damaged when bearing load.

[0050] The working platform 4 can be formed by fully laying wooden formwork on the platform support secondary beam 2 to provide a construction operation platform inside the elevator shaft 7.

[0051] During the concrete pouring of the main structure of elevator shaft 7, grooves 5 are reserved layer by layer on the inner wall of elevator shaft 7. The reserved height of grooves 5 can be adjusted according to actual construction needs. The size of grooves 5 is determined according to the size of the hook part 34 and the space required for its rotation.

[0052] During construction inside elevator shaft 7, the self-locking concrete shaft support platform of this utility model is hoisted into elevator shaft 7 using existing hoisting equipment, and is simultaneously hoisted upward as the construction height inside elevator shaft 7 changes.

[0053] During the upward lifting of the self-locking concrete shaft support platform, the second inclined structure of the hook part 34 collides with the first inclined structure of the groove 5, causing the hook part 34 to rotate around the flip plate pivot 32 and disengage from the groove 5. The hook part 34, the self-locking abutment part 35, and the extension part 36 rotate synchronously into the interior of the elevator shaft 7 and are located below the connecting plate 33 and the platform support main beam 1, thereby achieving the rotational closing of the flip plate lock 3.

[0054] The flap locks 3 located at the four corners of the self-locking concrete shaft support platform rotate and close synchronously. The closing process is identical, differing only in the direction of rotation, and will not be detailed here. After all four flap locks 3 are closed, the self-locking concrete shaft support platform can be lifted to the construction height using hoisting equipment, with the flap locks 3 positioned in the corresponding grooves 5 at the appropriate height. During the lifting process, the inner wall of the elevator shaft 7 provides rotational restraint for the connecting part 34, ensuring the flap locks 3 remain closed and preventing obstruction during lifting.

[0055] When the flap lock 3 is raised to the groove 5, the concave structure of the groove 5 releases the rotation restriction on the hook part 34, allowing the flap 31, hook part 34, self-locking abutment part 35, and extension part 36 to rotate around the flap pivot 32 towards the outside of the elevator shaft 7 under their own weight. Slightly lowering the self-locking concrete shaft support platform allows the hook part 34 to rotate and open around the flap pivot 32, and the bottom surface of the horizontal section of the inverted L-shaped structure adheres to the bottom surface of the groove 5 via the anti-slip part 341, while the vertical section of the inverted L-shaped structure and the self-locking abutment part 35 abut against the inner wall of the elevator shaft 7. At this point, the entire self-locking concrete shaft support platform is stably erected at the groove 5, allowing the connection to the hoisting equipment to be released, and the work platform 4 provides a working platform for construction personnel.

[0056] The self-locking concrete shaft support platform can be stably erected by utilizing its own weight and load. At this time, the hoisting equipment is not under stress, and there is no need to fix the self-locking concrete shaft support platform to the inner wall of the elevator shaft 7.

[0057] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. A self-locking concrete shaft support platform, characterized by: The utility model provides a kind of platform support structure, including platform support main beam (1), platform support secondary beam (2), flap lock (3) and work platform (4);Platform support main beam (1) is arranged along the length direction of elevator shaft (7), a pair of platform support main beam (1) is parallel and is arranged along the width direction of elevator shaft (7) with interval;Platform support secondary beam (2) is vertically jointed on a pair of platform support main beam (1), several platform support secondary beam (2) are arranged along the length direction of platform support main beam (1) with interval, work platform (4) is arranged on several platform support secondary beam (2);The both ends of each platform support main beam (1) are detachably connected with flap lock (3), the both sides inner wall of elevator shaft (7) are reserved with recess (5) along the length direction, several recesses (5) are arranged along the height direction of elevator shaft (7) with interval, so that flap lock (3) can be hung on the inner wall of elevator shaft (7) when being opened, and flap lock (3) can be separated from recess (5) and be located in the inside of elevator shaft (7) when being closed.

2. The self-locking concrete shaft support platform according to claim 1, characterized in that: Each described flap lock (3) includes flap (31), flap pivot (32) and connecting plate (33);One end of connecting plate (33) is fixedly connected to the end of platform support main beam (1), and the other end of connecting plate (33) leaves a gap between the inner wall of elevator shaft (7);One end of flap (31) is rotatably connected to connecting plate (33) through flap pivot (32) near one side of platform support main beam (1), and a hanging part (34) is formed on one end of flap (31) near the inner wall of elevator shaft (7), the hanging part (34) can be inserted into the recess (5) when being opened around the flap pivot (32), so that the platform support main beam (1) is horizontally erected in the elevator shaft (7), and the hanging part (34) can be separated from the recess (5) and located in the inside of the elevator shaft (7) when being closed around the flap pivot (32), so that the platform support main beam (1) can be hoisted and lifted in the elevator shaft (7).

3. The self-locking concrete shaft support platform according to claim 2, characterized in that: The hanging part (34) is in inverted L-shaped structure, and when the hanging part (34) is opened around the flap pivot (32), the horizontal segment bottom surface of the inverted L-shaped structure is attached to the bottom surface of the recess (5), and the vertical segment of the inverted L-shaped structure is attached to the inner wall of the elevator shaft (7).

4. The self-locking concrete shaft support platform according to claim 3, characterized in that: The horizontal segment bottom surface of the inverted L-shaped structure is provided with an anti-skid part (341), which is attached to the bottom surface of the recess (5).

5. A self-locking concrete shaft support platform according to claim 2 or 3, characterized in that: The top surface of the recess (5) is in first inclined surface structure with high inside and low outside, and when the hanging part (34) is opened around the flap pivot (32), the horizontal segment top surface of the inverted L-shaped structure of the hanging part (34) is in second inclined surface structure with high inside and low outside.

6. The self-locking concrete shaft support platform according to claim 2, characterized in that: The other end of the flap (31) is formed with a self-locking abutting part (35), and when the hanging part (34) is opened around the flap pivot (32), the self-locking abutting part (35) abuts against the inner wall of the elevator shaft (7), and when the hanging part (34) is closed around the flap pivot (32), the self-locking abutting part (35) is rotated to below the connecting plate (33) and the platform support main beam (1).

7. The self-locking concrete shaft support platform according to claim 6, characterized in that: The self-locking abutting part (35) is formed with an extension part (36) at one end away from the hanging part (34) and towards the inside of the elevator shaft (7), and the extension part (36), the self-locking abutting part (35) and the hanging part (34) are of an integrated structure.

8. The self-locking concrete shaft support platform according to claim 2, characterized by: One end of the connecting plate (33) and the end of the platform support main beam (1) are both formed with a reinforcing plate (6), so that the one end of the connecting plate (33) is detachably connected with the end of the platform support main beam (1) through the two reinforcing plates (6) and the locking piece (8).

9. The self-locking concrete shaft support platform according to any one of claims 1, 2, 8, characterized in that: The platform support main beam (1) is formed with a plurality of through holes (11) at intervals, forming a hollow main beam.

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