Safety protection supporting platform for slurry balance pipe jacking construction

Abstract

The safety protection supporting platform for slurry balance pipe jacking construction comprises a main platform plate and two I-shaped sliding rails, the main platform plate moves on the I-shaped sliding rails through limiting sliding parts, and auxiliary platform plates are arranged on the two sides of the main platform plate. A vertical plate is installed on I-shaped sliding rails, then a worker enters the upper surface of a main platform plate, auxiliary platform plates on the two sides are stretched to proper positions correspondingly, a winding roller is driven by a band-type brake motor to unwind, the main platform plate gradually falls to the proper positions on the two I-shaped sliding rails under the gravity effect, then the length of a telescopic crawling ladder is adjusted, and the telescopic crawling ladder is fixed to the upper surface of the main platform plate. And at the moment, a worker can go down to the bottom of a working well through the telescopic ladder stand to carry out maintenance and installation work, the whole falling and rising process avoids large consumption of physical power of the worker, multiple persons and tools can be carried at the same time, and the underground operation efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of pipeline construction, and in particular relates to a safety protection support platform for mud-water balanced pipe jacking construction. Background Art

[0002] Slurry-balanced pipe jacking is a mechanical and automated pipe jacking construction method that uses full-section cutting of soil, balancing soil pressure and groundwater pressure with mud and water pressure, and using mud and water as a medium for transporting waste soil. Slurry-balanced pipe jacking is generally carried out in low construction wells and is accompanied by a lot of soil and water, so a platform that can provide workers with safe construction is required.

[0003] During the pipe jacking construction process, the pipe jacking and concrete pipe assembly is a continuous and repetitive process until the project design length is completed. Therefore, workers are required to intermittently go down to the 5-15 meter deep working well to splice and fix the pipe joints, or perform troubleshooting and maintenance work.

[0004] The current construction method mostly adopts setting up vertical ladders or inclined ladders on the edge of the working pit for workers to enter and exit the working pit. However, due to the deep working pit, relying solely on manual climbing takes a long time, and manual climbing will cause the workers' physical strength to decline rapidly, affecting the efficiency of underground operations. The narrow ladder passage cannot accommodate multiple people going up and down at the same time. Material transportation needs to be hoisted in sections, which prolongs the process time. For example, workers need to carry small tools with them to climb, which increases the difficulty of movement. Moreover, the position of the ladder is relatively fixed, so the first position of the workers after entering the working pit is also relatively fixed, and they cannot selectively enter the pit according to the location of the work area, which is not practical. Summary of the Invention

[0005] The purpose of the present invention is to provide a safety protection support platform for mud-water balanced pipe jacking construction in order to solve the above problems, as described below.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: The safety protection support platform for mud-water balanced pipe jacking construction provided by the present invention comprises a main platform plate and two I-shaped slide rails, the main platform plate moves on the I-shaped slide rails through a limit sliding member, auxiliary platform plates are provided on both sides of the main platform plate, and a sliding connection member for adjusting the position of the auxiliary platform plates is provided between the auxiliary platform plates and the main platform plate, telescopic ladders are rotatably connected to the two auxiliary platform plates, and guardrails are fixedly connected to the main platform plate and the two auxiliary platform plates, and the three guardrails cooperate with the two telescopic ladders to form a U-shaped fence; The two I-shaped slide rails are fixedly connected to the inner wall of the working well, and a rear wall is provided on the inner wall of the working well. A jack bracket is fixedly installed on the rear wall, and the two I-shaped slide rails are located on the side wall on the same side as the rear wall, and a lifting component is provided on the upper side of the working well to drive the main platform plate to move up and down.

[0007] Preferably, the limiting sliding member includes two vertical plates fixedly connected to the main platform plate, and the four corners of the two vertical plates are fixedly connected to ear plates, and the opposite surfaces of the four ear plates are rotatably connected to roller one, and one side of the I-shaped slide rail is located in the gap between the four rollers one and the vertical plates, and the upper and lower sides of the vertical plates are rotatably connected to roller two through the opened slots.

[0008] Preferably, the sliding connection member 1 includes a plurality of adjustment rods fixedly connected to the side wall of the auxiliary platform plate, and the side wall of the main platform plate is provided with a plurality of sleeve holes for plugging and sleeved with the adjustment rods.

[0009] Preferably, the positions of the several holes opened at both ends of the main platform plate are staggered with each other, and the end of each hole is fixedly connected to a limiting ring 1, and the end of each adjusting rod is fixedly connected to a limiting ring 2 adapted to the limiting ring 1.

[0010] Preferably, the telescopic ladder includes a main ladder and two adjustment ladders, the ends of the main ladder are rotatably connected to the side walls of the secondary platform plate, and the two adjustment ladders are stacked on the surface of the main ladder. The main ladder and the middle adjustment ladder are fixedly connected to the same side with a T-shaped slide bar, and the bottom surfaces of the middle adjustment ladder and the upper adjustment ladder are provided with T-shaped slide grooves that are slidably connected to the T-shaped slide bar. The ends of the two adjustment ladders are provided with bolt connectors for fixing the position of the adjustment ladders, and the guardrail is provided with a clamping structure for fixing the main ladder to a vertical state.

[0011] Preferably, the bolt connector includes a bolt hole provided on the adjustment ladder, a bolt is threadedly connected to the bolt hole, and the T-shaped slide bar is provided with a plurality of positioning holes for connecting with the bolt.

[0012] Preferably, the guardrail includes N-shaped rods, three of which are fixedly connected to the main platform plate and two secondary platform plates respectively, each of which is fixedly connected to two horizontal bars distributed vertically, and the main platform plate is provided with two guard plates that can be moved laterally.

[0013] Preferably, the clamping structure includes an L-shaped rod fixedly connected to the n-shaped rod, the lower end of the vertical part of the L-shaped rod is rotatably connected to a rotating sleeve, the upper end of the rotating sleeve is provided with a groove, the groove is provided with a clockwork spring, the two ends of the clockwork spring are respectively connected to the L-shaped rod and the groove, the side wall of the rotating sleeve is fixedly connected to the L-shaped hanging rod, and the end of the L-shaped hanging rod is an inclined surface that cooperates with the wedge shape of the main ladder, the side wall of the main ladder is penetrated by a through hole for hanging the L-shaped hanging rod, and the upper surface of the secondary platform plate is fixedly connected to a limit block that abuts the main ladder.

[0014] Preferably, one end of the guard plate is fixedly connected to two sliding sleeves, and the two sliding sleeves are slidably connected to the two cross bars respectively.

[0015] Preferably, the lifting assembly includes a base plate, and support vertical plates are fixedly connected on both sides of the upper surface of the base plate, and a winding roller is rotatably connected between the two support vertical plates. A brake motor for driving the winding roller to rotate is fixedly installed on one of the support vertical plates, and a connecting rope is fixedly connected and wound on the winding roller. The other end of the connecting rope is fixedly connected to the main platform plate, and one end of the base plate is rotatably connected to a guide roller that abuts the connecting rope.

[0016] The beneficial effects are: By installing the vertical plate on the I-shaped slide rail, the staff then enters the upper surface of the main platform plate, stretches the auxiliary platform plates on both sides to the appropriate position, and drives the winding roller to unwind through the brake motor. Under the action of gravity, the main platform plate gradually drops to the appropriate position on the two I-shaped slide rails, and then adjusts the length of the telescopic ladder to make it flip downward to contact the bottom of the well for support. At this time, the staff can use the telescopic ladder to go down to the bottom of the working well for inspection and installation work. The entire falling and rising process avoids a lot of physical exertion of the staff, can carry multiple people and tools at the same time, and improves the efficiency of underground operations.

[0017] By flipping the telescopic ladders on both auxiliary platform boards downwards until they are in contact with the bottom of the well, the staff can choose one side of the cylinder section to enter the bottom of the well according to work needs. At the same time, when it is necessary to move to the other side of the cylinder section, they can move quickly through the telescopic ladder, auxiliary platform board and main platform board, avoiding difficult movement in a narrow gap, thereby improving the work efficiency of maintenance and installation.

[0018] When not in use for transportation, the adjusting rod can be inserted into the sleeve hole. At this time, the two auxiliary platform plates are close to and fit together with the main platform plate. At the same time, the vertical plate can be removed from the I-shaped slide rail. At this time, the main platform plate is separated from the two I-shaped slide rails, avoiding occupying most of the space on the transport vehicle and facilitating transfer and transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 is a perspective view of the present invention; Figure 2 is a perspective view of the winding roller and related structures of the present invention; Figure 3 It is an exploded perspective view of the vertical plate of the present invention; Figure 4 This is an exploded perspective view of the auxiliary platform plate of the present invention; Figure 5 This is an exploded perspective view of the telescopic ladder of the present invention; Figure 6 This is a disassembled three-dimensional diagram of the L-shaped hanging rod of the present invention; Figure 7 This is a three-dimensional diagram of the present invention when it is located at the wellhead; Figure 8 It is a three-dimensional diagram of the present invention when it is located at the bottom of the well.

[0021] The following are the descriptions of the reference numerals: 1. Main platform; 2. Secondary platform; 201. Adjustment rod; 202. Hole; 203. Second limit ring; 204. First limit ring; 3. Guardrail; 301. N-shaped rod; 302. Crossbar; 4. Telescopic ladder; 401. Main ladder; 402. Adjustable ladder; 403. T-shaped slide; 404. T-shaped slide; 405. Bolt hole; 406. Bolt; 407. Positioning hole; 5. I-shaped slide rail; 501. Vertical plate; 502. Ear plate; 503. Roller 1; 504, roller 2; 6, lifting assembly; 601, supporting vertical plate; 602, winding roller; 603, brake motor; 604, connecting rope; 605, guide roller; 606, bottom plate; 7, guard plate; 701, sliding sleeve; 8, clamping structure; 801, L-shaped rod; 802, rotating sleeve; 803, L-shaped hanging rod; 804, groove; 805, spring; 806, opening; 9, working well; 10, back wall; 11, jack bracket; 12, limit block. DETAILED DESCRIPTION

[0022] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other implementation manners obtained by those of ordinary skill in the art based on the embodiments of the present invention without any creative efforts fall within the scope protected by the present invention.

[0023] Refer to Figures 1-8 As shown, the present invention provides a safety protection support platform for slurry balance pipe jacking construction, including a main platform plate 1 and two I-shaped slide rails 5. The main platform plate 1 moves on the I-shaped slide rails 5 through a limit sliding member. On both sides of the main platform plate 1, there are secondary platform plates 2, and a sliding connecting member one for adjusting the position of the secondary platform plate 2 is provided between the secondary platform plate 2 and the main platform plate 1. Telescopic ladders 4 are rotatably connected to both of the two secondary platform plates 2. Guardrails 3 are fixedly connected to the main platform plate 1 and the two secondary platform plates 2, and the three guardrails 3 and the two telescopic ladders 4 cooperate to form a U-shaped fence. Both of the two I-shaped slide rails 5 are fixedly connected to the inner wall of the working shaft 9, and a back wall 10 is provided on the inner wall of the working shaft 9. A jack support 11 is fixedly installed on the back wall 10, and both of the two I-shaped slide rails 5 are located on the side wall on the same side as the back wall 10. An elevating component 6 for driving the main platform plate 1 to move up and down is provided above the working shaft 9.

[0024] Refer to Figure 3 As shown, the limit sliding member includes two vertical plates 501 fixedly connected to the main platform plate 1. Ears 502 are fixedly connected to the four corners of the two vertical plates 501. Roller ones 503 are rotatably connected to the opposite surfaces of the four ears 502. One side of the I-shaped slide rail 5 is located in the gap between the four roller ones 503 and the vertical plate 501. Roller twos 504 are rotatably connected to the vertical plates 501 through the slot holes opened on the upper and lower sides of the vertical plates 501. When installing the main platform plate 1, the vertical plates 501 can be installed on the I-shaped slide rails 5, and the I-shaped slide rails 5 are inserted into the slots formed by the cooperation of the four roller ones 503, the ears 502, and the vertical plates 501. At this time, the four roller ones 503 are in contact with the inner side of the I-shaped slide rail 5, and the two roller twos 504 are in contact with the outer surface of the I-shaped slide rail 5, which can make the main platform plate 1 move more smoothly when moving up and down.

[0025] Refer to Figure 4As shown, the sliding connection part 1 includes several adjusting rods 201 fixedly connected to the side wall of the auxiliary platform plate 2, and the side wall of the main platform plate 1 is provided with several sleeve holes 202 that are plugged into the adjusting rods 201. The positions of the several sleeve holes 202 opened at both ends of the main platform plate 1 are staggered. The end of each sleeve hole 202 is fixedly connected to a limiting ring 1 204, and the end of each adjusting rod 201 is fixedly connected to a limiting ring 203 that is adapted to the limiting ring 1 204. By moving the auxiliary platform plate 2, the several adjusting rods 201 can be driven to be pulled out of the sleeve holes 202. At the same time, if After the dry adjusting rod 201 extends out of the sleeve hole 202, the gap between them is designed to be dense, which is convenient for workers to stand and step on. Through the staggered distribution of several sleeve holes 202 on both sides, the length of the sleeve hole 202 and the adjusting rod 201 can be designed to be a long rod body and a deep socket. While realizing a large range of adjustment of the sub-platform plate 2, the adjusting rods 201 on both sides are prevented from influencing each other. At the same time, the design of the limit ring 1 204 and the limit ring 2 203 can prevent the limit ring 2 203 from colliding with the limit ring 1 204 when the adjusting rod 201 is pulled out, thereby preventing the adjusting rod 201 from being accidentally pulled out.

[0026] Reference Figure 5 As shown, the telescopic ladder 4 includes a main ladder 401 and two adjustment ladders 402. The end of the main ladder 401 is rotatably connected to the side wall of the secondary platform plate 2, and the two adjustment ladders 402 are stacked on the surface of the main ladder 401. The main ladder 401 and the middle adjustment ladder 402 are fixedly connected to the same side with a T-shaped slide 403. The bottom surfaces of the middle adjustment ladder 402 and the upper adjustment ladder 402 are provided with T-shaped slide grooves 404 that are slidably connected to the T-shaped slide 403. The ends of the two adjustment ladders 402 are provided with bolt connectors for fixing the positions of the adjustment ladders 402. The guardrail 3 is provided with a clamping structure 8 for fixing the main ladder 401 to a vertical state. The bolt connector includes an opening The bolt holes 405 provided on the adjusting ladder 402 are threadedly connected with bolts 406, and the T-shaped slide 403 is provided with a plurality of positioning holes 407 which are plugged into the bolts 406. The two adjusting ladders 402 can be slidably adjusted to their positions on the main ladder 401 through the sliding sleeve of the T-shaped slide groove 404 and the T-shaped slide 403 (the two adjusting ladders 402 are provided here only as a schematic, and the number can be adaptively adjusted according to actual conditions) to achieve the adjustment of the overall length of the telescopic ladder 4. When the adjusting ladder 402 is moved to the appropriate position, the bolts 406 are inserted into the bolt holes 405 and the positioning holes 407 at the same time and rotated to fix the position of the adjusting ladder 402.

[0027] Reference Figure 4As shown, the guardrail 3 includes an N-shaped rod 301, and the three N-shaped rods 301 are respectively fixedly connected to the main platform plate 1 and the two sub-platform plates 2. Each N-shaped rod 301 is fixedly connected to two cross bars 302 distributed up and down. The main platform plate 1 is provided with two guard plates 7 that can be moved laterally. One end of the guard plate 7 is fixedly connected to two sliding sleeves 701, and the two sliding sleeves 701 are respectively slidably connected to the two cross bars 302. The sliding sleeves 701 are slidably connected to the two cross bars 302. When the sub-platform plate 2 moves, the guard plate 7 can be translated to drive the sliding sleeves 701 to move on the cross bars 302. The position of the guard plate 7 can be adjusted to block the gap between the telescopic ladder 4 and the guardrail 3 (that is, the extension range of the adjustment rod 201), which can improve the protection effect at the gap.

[0028] Reference Figure 5-6 As shown, the clamping structure 8 includes an L-shaped rod 801 fixedly connected to the n-shaped rod 301, and the lower end of the vertical part of the L-shaped rod 801 is rotatably connected to a rotating sleeve 802. The upper end of the rotating sleeve 802 is provided with a groove 804, and a spring 805 is provided in the groove 804. The two ends of the spring 805 are respectively connected to the L-shaped rod 801 and the groove 804. An L-shaped hanging rod 803 is fixedly connected to the side wall of the rotating sleeve 802, and the end of the L-shaped hanging rod 803 is an inclined surface that matches the wedge shape of the main ladder 401. A through hole 806 is provided on the side wall of the main ladder 401 to hang on the L-shaped hanging rod 803. The upper surface of the secondary platform plate 2 is fixedly connected to a limit block 12 that abuts against the main ladder 401. When the telescopic ladder 4 is folded, the telescopic ladder 4 is first pulled upward. The retractable ladder 4 drives it to rotate, and the telescopic ladder 4 contacts the end inclined surface of the L-shaped hanging rod 803, and drives the L-shaped hanging rod 803 and the rotating sleeve 802 to rotate on the L-shaped rod 801 under the wedge cooperation, and drives the spring spring 805 to rotate elastically. When the main ladder 401 abuts against the limit block 12 (the limit block 12 can prevent the main ladder 401 from flipping upward excessively), and the end of the L-shaped hanging rod 803 automatically engages with the through hole 806 on the main ladder 401 under the elastic force of the spring spring 805, the telescopic ladder 4 is now vertically fixed relative to the secondary platform plate 2, completing the folding and storage of the telescopic ladder 4. When the telescopic ladder 4 needs to be put down, the L-shaped hanging rod 803 is rotated so that its end is not engaged with the through hole 806. At this time, the telescopic ladder 4 is unrestricted and can rotate freely.

[0029] Reference Figure 2As shown, the lifting assembly 6 includes a base plate 606, and both sides of the upper surface of the base plate 606 are fixedly connected to support vertical plates 601, and a winding roller 602 is rotatably connected between the two support vertical plates 601. A brake motor 603 is fixedly installed on one of the support vertical plates 601 to drive the winding roller 602 to rotate. A connecting rope 604 is fixedly connected and wound on the winding roller 602. The other end of the connecting rope 604 is fixedly connected to the main platform plate 1, and one end of the base plate 606 is rotatably connected to a guide roller 605 that abuts against the connecting rope 604. The base plate 606 can be installed on the upper end of the working well 9 by expansion bolts (the position of the base plate 606 is preferably between two working wells). The middle position between the U-shaped slide rails 5), by controlling the rotation of the brake motor 603, the winding roller 602 can be driven to unwind the connecting rope 604, and the gradual extension of the connecting rope 604 can drive the main platform plate 1 to gradually fall on the side wall of the working well 9. The guide roller 605 can prevent the connecting rope 604 from contacting and rubbing with the edge of the working well 9 when the main platform plate 1 falls to a deeper position. The brake device of the brake motor 603 can immediately trigger mechanical braking when the motor is powered off or the system fails, and force the motor to stop running through friction or electromagnetic force, avoiding continuous rotation or slippage caused by inertia or external loads, making the lifting and lowering of the main platform plate 1 safer and more stable.

[0030] When in use, first fix the two I-shaped slide rails 5 on the side wall of the back wall 10 of the working well 9 with expansion bolts, then install the bottom plate 606 on the top of the working well 9, and then install the vertical plate 501 on the I-shaped slide rail 5, so that the I-shaped slide rail 5 is inserted into the slot formed by the four rollers 503, the ear plate 502 and the vertical plate 501. Then the staff enters the upper surface of the main platform plate 1, and stretches the auxiliary platform plates 2 on both sides to the appropriate position according to the gap position between the two sides of the jack bracket 11 and the two sides of the working well 9. At this time, the adjusting rod 201 slides out in the sleeve hole 202, and the brake motor 60 is used to adjust the position of the auxiliary platform plate 2 on both sides. 3 drives the winding roller 602 to unwind, at this time the connecting rope 604 is gradually extended, and under the action of gravity the main platform plate 1 gradually drops on the two I-shaped slide rails 5 to above the jack bracket 11, and then walks to the surface of the auxiliary platform plate 2 on the working point side through the extended adjusting rod 201, and extends the telescopic ladder 4 according to the distance between the auxiliary platform plate 2 and the bottom of the working well 9, and then moves the L-shaped hanging rod 803 to make it rotate elastically. At this time, the end of the L-shaped hanging rod 803 is not engaged with the through port 806, so that the telescopic ladder 4 is flipped downward to contact with the bottom of the well for support. At this time, the staff can go down to the bottom of the working well 9 through the telescopic ladder 4 to carry out maintenance and installation work.

[0031] When not in use for transportation, the adjusting rod 201 can be inserted into the sleeve hole 202. At this time, the two secondary platform boards 2 are close to the main platform board 1. At the same time, the vertical board 501 can be removed from the I-shaped slide rail 5. At this time, the main platform board 1 is separated from the two I-shaped slide rails 5, which is convenient for transfer and transportation.

[0032] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. Safety protection support platform for mud-water balance pipe jacking construction, characterized by: It includes a main platform plate (1) and two I-shaped sliding rails (5). The main platform plate (1) moves on the I-shaped sliding rails (5) through a limiting sliding member. On both sides of the main platform plate (1), there are secondary platform plates (2), and there is a sliding connecting member one for adjusting the position of the secondary platform plate (2) between the secondary platform plate (2) and the main platform plate (1). On both of the two secondary platform plates (2), there is a telescopic ladder (4) rotatably connected. On the main platform plate (1) and the two secondary platform plates (2), there are guardrails (3) fixedly connected, and the three guardrails (3) and the two telescopic ladders (4) cooperate to form a U-shaped fence; Both of the two I-shaped sliding rails (5) are fixedly connected to the inner wall of the working well (9), and there is a back wall (10) on the inner wall of the working well (9). A jack support (11) is fixedly installed on the back wall (10), and both of the two I-shaped sliding rails (5) are located on the side wall on the same side as the back wall (10), and there is a lifting component (6) for driving the main platform plate (1) to move up and down on the upper side of the working well (9).

2. The safety protection support platform for mud-water balanced pipe jacking construction according to claim 1 is characterized by: The limiting sliding member includes two vertical plates (501) fixedly connected to the main platform plate (1). At the four corners of both of the two vertical plates (501), there are ear plates (502) fixedly connected. On the opposite surfaces of the four ear plates (502), there are roller one (503) rotatably connected, and one side of the I-shaped sliding rail (5) is located in the gap between the four roller one (503) and the vertical plate (501). On the upper and lower sides of the vertical plate (501), there are roller two (504) rotatably connected through the slotted holes opened.

3. The safety protection support platform for mud-water balanced pipe jacking construction according to claim 1 is characterized by: The sliding connecting member one includes several adjusting rods (201) fixedly connected to the side wall of the secondary platform plate (2). On the side wall of the main platform plate (1), there are several sleeve holes (202) inserted and sleeved with the adjusting rods (201).

4. The safety protection support platform for mud-water balanced pipe jacking construction according to claim 3 is characterized by: The positions of the several sleeve holes (202) opened at both ends of the main platform plate (1) are staggered. At the port of each sleeve hole (202), there is a limiting ring one (204) fixedly connected. At the end of each adjusting rod (201), there is a limiting ring two (203) adapted to the limiting ring one (204).

5. The safety protection support platform for mud-water balanced pipe jacking construction according to claim 1 is characterized by: The telescopic ladder (4) includes a main ladder (401) and two adjusting ladders (402). The end of the main ladder (401) is rotatably connected to the side wall of the secondary platform plate (2). The two adjusting ladders (402) are stacked on the surface of the main ladder (401). On the same side of the main ladder (401) and the middle adjusting ladder (402), there are T-shaped sliding strips (403) fixedly connected. On the bottom surfaces of the middle adjusting ladder (402) and the upper adjusting ladder (402), there are T-shaped sliding grooves (404) slidably connected to the T-shaped sliding strips (403). At the ends of the two adjusting ladders (402), there are bolt plug-in members for fixing the position of the adjusting ladder (402). On the guardrail (3), there is a clamping structure (8) for fixing the main ladder (401) to a vertical state.

6. The safety protection support platform for mud-water balanced pipe jacking construction according to claim 5 is characterized by: The bolt connector includes a bolt hole (405) provided on the adjustment ladder (402), a bolt (406) being threadedly connected to the bolt hole (405), and a plurality of positioning holes (407) for plugging with the bolt (406) are provided on the T-shaped slide (403).

7. The safety protection support platform for mud-water balanced pipe jacking construction according to claim 5 is characterized by: The guardrail (3) comprises an N-shaped rod (301), wherein three N-shaped rods (301) are fixedly connected to the main platform plate (1) and the two auxiliary platform plates (2), respectively; each N-shaped rod (301) is fixedly connected to two vertically distributed crossbars (302); and the main platform plate (1) is provided with two transversely movable guard plates (7).

8. The safety protection support platform for mud-water balanced pipe jacking construction according to claim 7 is characterized by: The clamping structure (8) includes an L-shaped rod (801) fixedly connected to the N-shaped rod (301), the lower end of the vertical portion of the L-shaped rod (801) is rotatably connected to a rotating sleeve (802), the upper end of the rotating sleeve (802) is provided with a groove (804), a spring (805) is provided in the groove (804), the two ends of the spring (805) are respectively connected to the L-shaped rod (801) and the groove (804), an L-shaped hanging rod (803) is fixedly connected to the side wall of the rotating sleeve (802), and the end of the L-shaped hanging rod (803) is an inclined surface that is wedge-shaped and matches the main ladder (401), and a through opening (806) is opened on the side wall of the main ladder (401) to be hung with the L-shaped hanging rod (803), and the upper surface of the secondary platform plate (2) is fixedly connected to a limit block (12) that abuts against the main ladder (401).

9. The safety protection support platform for slurry pipe jacking construction according to claim 7, characterized in that: One end of the guard plate (7) is fixedly connected to two sliding sleeves (701), and the two sliding sleeves (701) are respectively slidably connected to the two cross bars (302).

10. The safety protection support platform for mud-water balanced pipe jacking construction according to claim 1 is characterized by: The lifting assembly (6) includes a base plate (606), and both sides of the upper surface of the base plate (606) are fixedly connected to support vertical plates (601), and a winding roller (602) is rotatably connected between the two support vertical plates (601), and a brake motor (603) is fixedly installed on one of the support vertical plates (601) for driving the winding roller (602) to rotate, and a connecting rope (604) is fixedly connected and wound on the winding roller (602), and the other end of the connecting rope (604) is fixedly connected to the main platform plate (1), and one end of the base plate (606) is rotatably connected to a guide roller (605) that abuts the connecting rope (604).

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