A temporary guardrail for the bottom plate of a ship lock chamber

Abstract

The present invention provides a temporary guardrail for the bottom plate of a ship lock chamber, which belongs to the technical field of temporary guardrails for ship lock projects. It comprises a first guardrail body and a second guardrail body, wherein the rear ends of the first guardrail body and the second guardrail body are provided with connecting rods, and the bottom ends of the connecting rods are provided with fixing rods; a fixing mechanism is provided at the top end of the fixing rod, and the fixing mechanism comprises a first connecting block. The present invention fixes the U-shaped steel, and then the U-shaped steel can fix the first guardrail body and the second guardrail body at the edge of the ship lock body, and finally inserts the U-shaped steel into the gap of the steel cage and the inside of the socket, and then rotates the gear to make the first plug block enter the inside of the square hole, so that the first guardrail body and the second guardrail body can be fixed at the edge of the ship lock body without driving in the anchoring structure, thereby avoiding cracking, damage or performance degradation of the concrete.

Description

Technical Field

[0001] The invention belongs to the technical field of temporary guardrails for ship lock projects, in particular to a temporary guardrail for a ship lock chamber bottom plate. Background Art

[0002] The construction of the lock chamber floor for the main ship lock project is a large-scale concrete project. Concrete construction often adopts the skip-bin method, with segmented reinforcement cages and pouring. Because the top surface of the lock chamber floor is usually high and the construction period is relatively long, workers need to frequently move on the top of the reinforcement cage during construction, posing a risk of falling from a height on the side of the edge. A temporary guardrail is urgently needed for edge protection.

[0003] Due to the durability design requirements of the lock chamber, the temporary guardrail cannot be installed by pre-embedding the guardrail foundation connection structure in the lock chamber floor concrete, driving the guardrail foundation into the ground concrete cushion, or welding it to the post-cast reinforcement cage. Therefore, the core of the lock chamber floor edge protection lies in the connection between the temporary guardrail body and the post-cast reinforcement cage.

[0004] U-shaped steel bolted connections are commonly used in current projects. However, due to the wide width of the lock chamber floor, nearly 30 U-shaped steel bolts are required for every 12 meters of temporary guardrail to meet the horizontal thrust requirements specified in the standard specifications. Each U-shaped steel has two bolts, and these bolts must be manually fixed one by one. This is inconvenient, inefficient, and poses a high risk of falls from height. Summary of the Invention

[0005] In order to solve the problems existing in the existing U-shaped steel bolted structure mentioned in the above background technology, the present invention provides a temporary guardrail for the bottom plate of a ship lock chamber.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A temporary guardrail for a ship lock chamber bottom plate, comprising a first guardrail body and a second guardrail body, wherein the rear ends of the first guardrail body and the second guardrail body are provided with connecting rods, and the bottom ends of the connecting rods are both provided with fixing rods;

[0008] The fixing mechanism is arranged on the top end of the fixing rod, and the fixing mechanism includes a first connecting block, the first connecting block is arranged on the top end of the fixing rod, and both ends of the surface of the first connecting block are provided with a socket, a U-shaped steel is provided inside the socket, and the surfaces of both ends of the U-shaped steel are provided with a square hole, the top of the first connecting block is fixedly installed with a fixing shell, and one side of the interior of the fixing shell is provided with a slide groove, and the number of the slide grooves is two, and the interiors of the two slide grooves are slidably connected with the first slider, one end of the two first sliders are fixedly installed with the first rack and the second rack, and the middle part of the interior of the fixing shell is rotatably connected with a gear meshing with the first rack and the second rack, and the first rack and the second rack facing each other are fixedly installed with a mounting plate, and the facing side of the mounting plate is fixedly installed with the first plug block located inside the square hole.

[0009] Optionally, it also includes: a splicing mechanism, which is arranged on the left side of the bottom end of the first guardrail body, the splicing mechanism includes a connecting shell, the connecting shell is arranged on the left side of the bottom end of the first guardrail body, and the right side of the bottom end of the second guardrail body is fixedly installed with a second plug-in block located inside the connecting shell, the bottom end of the second plug-in block is provided with a first square groove, and a limiting groove is provided on the left side of the interior of the connecting shell, and the internal sliding connection of the limiting groove is connected to the limiting rod, and a movable plate is fixedly installed on the right side of the limiting rod, and a sliding hole is provided on the surface of the movable plate, and the top of the movable plate is fixedly installed with a plug-in plate located inside the first square groove, the interior of the connecting shell is rotatably connected to the rotating rod, and the surface of the rotating rod is threadedly connected to a threaded block, and the top of the threaded block is fixedly installed with a U-shaped plate, and the right end of the U-shaped plate is fixedly installed with a second slider located inside the sliding hole, and the second slider can slide inside the sliding hole.

[0010] Optionally, a second square groove is formed at the bottom end of the connecting shell, a second connecting block is slidably connected to the inside of the second square groove, and the top end of the second connecting block is fixedly connected to the bottom end of the threaded block.

[0011] Optionally, a positioning groove is provided on one side of the top of the U-shaped steel, a mounting block is fixedly installed on the top of the first connecting block, a spring is elastically connected inside the mounting block, and a positioning block located inside the positioning groove is fixedly installed at one end of the spring.

[0012] Optionally, the positioning block is semicircular in design and has a smooth surface, and the surface of the positioning block fully fits the interior of the positioning groove.

[0013] Optionally, the sliding hole is designed to be inclined, the second sliding block is designed to be cylindrical, and the size of the second sliding block is adapted to the sliding hole.

[0014] Optionally, the number of the limiting grooves and the number of the limiting rods are both two, and the limiting grooves and the limiting rods are designed to be longitudinally symmetrical about the center of the connecting shell.

[0015] Optionally, the sliding groove and the first sliding block are both T-shaped, and the surface of the first sliding block fully fits the inner wall of the sliding groove.

[0016] Optionally, the front end of the rotating rod passes through the first guardrail body and is fixedly mounted with a handle located outside the first guardrail body.

[0017] Optionally, there is a gap between the rotating rod and the movable plate, and the rotating rod and the movable plate do not interfere with each other.

[0018] Compared with the prior art, the technical solution of the present invention has at least the following beneficial effects:

[0019] The present invention places the first guardrail body and the second guardrail body at the edge of the lock body, and then the U-shaped steel can be inserted into the gap of the steel cage inside the lock body, and then the two ends of the U-shaped steel are inserted into the inside of the insertion hole, and then the surface of the U-shaped steel will contact the surface of the positioning block, and then the first insertion block is aligned with the square hole, and then the gear can be rotated, and then the gear will drive the first rack and the second rack to move toward each other, and then the first rack and the second rack will push the mounting plate and the first insertion block to move toward each other, and then the first insertion block will enter the inside of the square hole, thereby fixing the U-shaped steel, and then the U-shaped steel can fix the first guardrail body and the second guardrail body at the edge of the lock body, and finally by inserting the U-shaped steel into the gap of the steel cage and the inside of the insertion hole, and then rotating the gear to make the first insertion block enter the inside of the square hole, the first guardrail body and the second guardrail body can be fixed at the edge of the lock body without driving in an anchoring structure, thereby avoiding cracking, damage or performance degradation of concrete;

[0020] The present invention splices the first guardrail body and the second guardrail body together, then inserts the second plug-in block at the right end of the second guardrail body into the interior of the connecting shell, and then the first square groove at the bottom end of the second plug-in block is aligned with the plug-in plate, and then the handle can be rotated, and then the handle drives the rotating rod to rotate. When the rotating rod rotates, the threaded block moves, and then the threaded block drives the U-shaped plate and the second slider to move, and the second slider moves inside the sliding hole, and then the moving plate moves upward, and the moving plate pushes the plug-in plate into the interior of the first square groove, thereby fixing the second plug-in block to the interior of the connecting shell, and finally, by rotating the rod, the plug-in plate enters the interior of the first square groove, which makes it convenient for the operator to splice the first guardrail body and the second guardrail body together, reducing the workload of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the rearview guardrail of the present invention;

[0023] Figure 3 This is a schematic diagram of a cross-section of a U-shaped steel according to the present invention;

[0024] Figure 4 A schematic diagram showing the socket of the present invention;

[0025] Figure 5 This is a schematic diagram of a cross-sectional fixed shell of the present invention;

[0026] Figure 6 This is a schematic diagram showing the slider of the present invention;

[0027] Figure 7 This is a schematic diagram of a cross-sectional connection shell of the present invention;

[0028] Figure 8 This is a schematic cross-sectional view of a movable plate according to the present invention;

[0029] Figure 9 This is a schematic diagram showing the second connecting block of the present invention.

[0030] In the figure: 1. first guardrail body; 2. second guardrail body; 3. connecting rod; 4. fixing rod; 5. first connecting block; 6. jack; 7. U-shaped steel; 8. square hole; 9. fixing shell; 10. slide groove; 11. first slider; 12. first rack; 13. second rack; 14. gear; 15. mounting plate; 16. first plug-in block; 17. positioning groove; 18. mounting block; 19. spring; 20. positioning block; 21. second plug-in block; 22. first square groove; 23. rotating rod; 24. threaded block; 25. limiting groove; 26. limiting rod; 27. movable plate; 28. sliding hole; 29. ​​U-shaped plate; 30. second slider; 31. plug-in plate; 32. second square groove; 33. second connecting block; 34. connecting shell. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] like Figures 1 to 9 As shown, the present invention provides a temporary guardrail for the bottom plate of a ship lock chamber, comprising a first guardrail body 1 and a second guardrail body 2. The rear ends of the first guardrail body 1 and the second guardrail body 2 are provided with connecting rods 3, and the bottom ends of the connecting rods 3 are provided with fixing rods 4.

[0033] The top of the fixing rod 4 is provided with a fixing mechanism, and the fixing mechanism includes a first connecting block 5, the first connecting block 5 is arranged on the top of the fixing rod 4, and both ends of the surface of the first connecting block 5 are provided with a socket 6, and a U-shaped steel 7 is provided inside the socket 6. The surfaces of both ends of the U-shaped steel 7 are provided with square holes 8. The top of the first connecting block 5 is fixedly installed with a fixing shell 9, and a slide groove 10 is provided on one side of the interior of the fixing shell 9. There are two slide grooves 10, and the interiors of the two slide grooves 10 are slidably connected with a first slider 11. One end of the two first sliders 11 is fixedly installed with a first rack 12 and a second rack 13. The middle part of the interior of the fixing shell 9 is rotatably connected with a gear 14 that meshes with the first rack 12 and the second rack 13. The first rack 12 and the second rack 13 are fixedly installed on the side facing each other with a mounting plate 15, and the side facing each other of the mounting plate 15 is fixedly installed with a first plug block 16 located inside the square hole 8.

[0034] After the operator completes the splicing, he can place the first guardrail body 1 and the second guardrail body 2 on the edge of the lock body, then insert the U-shaped steel 7 into the gap of the steel cage inside the lock body, and then insert the two ends of the U-shaped steel 7 into the inside of the socket 6, and then make the bottom end of the socket 6 contact with the surface of the steel cage, and align the square hole 8 on the surface of the U-shaped steel 7 with the first plug block 16. After alignment, the gear 14 can be rotated, because the gear 14 is engaged with the first rack 12 and the second rack 13, and then when the gear 14 rotates, it will drive the first rack 12 and the second rack 13 to move toward each other, and When the first rack 12 and the second rack 13 rotate, the first slider 11 will move inside the slide groove 10, thereby enabling the first rack 12 and the second rack 13 to move smoothly, and then the first rack 12 and the second rack 13 will push the mounting plate 15 and the first plug block 16 to move toward each other, and then the first plug block 16 will enter the inside of the square hole 8, so that the U-shaped steel 7 can be fixed inside the insertion hole 6, and the U-shaped steel 7 can fix the first guardrail body 1 and the second guardrail body 2 at the edge of the lock body, thereby preventing the first guardrail body 1 and the second guardrail body 2 from being offset in the protection process.

[0035] When it is necessary to cancel the fixation of the first guardrail body 1 and the second guardrail body 2, the gear 14 can be rotated in the opposite direction, and then the gear 14 will drive the first rack 12 and the second rack 13 to move relative to each other, and then the first rack 12 and the second rack 13 will pull the mounting plate 15 and the first plug block 16 to move relative to each other, and then the first plug block 16 will be disengaged from the inside of the square hole 8, and then the limit of the U-shaped steel 7 can be canceled, and then the U-shaped steel 7 can be pulled out, thereby canceling the fixation of the first guardrail body 1 and the second guardrail body 2, and then the first guardrail body 1 and the second guardrail body 2 can be moved.

[0036] like Figure 7 、 Figure 8 and Figure 9 As shown, the splicing mechanism is arranged on the left side of the bottom end of the first guardrail body 1, and the splicing mechanism includes a connecting shell 34, which is arranged on the left side of the bottom end of the first guardrail body 1, and the right side of the bottom end of the second guardrail body 2 is fixedly installed with a second plug-in block 21 located inside the connecting shell 34, and a first square groove 22 is opened at the bottom end of the second plug-in block 21, and a limiting groove 25 is opened on the left side inside the connecting shell 34. The limiting groove 25 is internally slidably connected to the limiting rod 26, and a movable plate 27 is fixedly installed on the right side of the limiting rod 26. A sliding hole 28 is opened on the surface of the movable plate 27, and the top of the movable plate 27 is fixedly installed with the plug-in plate 31 located inside the first square groove 22, the interior of the connecting shell 34 is rotatably connected to the rotating rod 23, and the surface of the rotating rod 23 is threadedly connected to the threaded block 24, and the top of the threaded block 24 is fixedly installed with a U-shaped plate 29, and the right end of the U-shaped plate 29 is fixedly installed with a second slider 30 located inside the sliding hole 28, and the second slider 30 can slide inside the sliding hole 28.

[0037] Through the design of the splicing mechanism, during the splicing process of the first guardrail body 1 and the second guardrail body 2, the second plug-in block 21 at the right end of the second guardrail body 2 will enter the interior of the connecting shell 34, and when the left end of the first guardrail body 1 contacts the right end of the second guardrail body 2, the first square groove 22 at the bottom end of the second plug-in block 21 will be aligned with the plug-in plate 31, and then the rotating rod 23 can be rotated. Since the rotating rod 23 is threadedly connected to the threaded block 24, when the rotating rod 23 rotates, the threaded block 24 will move forward on the surface of the rotating rod 23, and then the threaded block 24 will drive the U-shaped plate 29 and the second slider 30 to move, and then the second slider 30 will slide inside the sliding hole 28, and during the sliding process of the second slider 30, the movable plate 27 will move upward, and then the movable plate 27 will push the plug-in plate 31 to move upward, and the plug-in plate 31 will enter the interior of the first square groove 22, thereby fixing the second plug-in block 21 inside the connecting shell 34, and then the splicing can be completed.

[0038] like Figure 9 As shown, a second square groove 32 is formed at the bottom end of the connecting shell 34 , a second connecting block 33 is slidably connected inside the second square groove 32 , and the top end of the second connecting block 33 is fixedly connected to the bottom end of the threaded block 24 .

[0039] Through the design of the second square groove 32 and the second connecting block 33, when the rotating rod 23 rotates, the second connecting block 33 limits the threaded block 24, thereby ensuring that the threaded block 24 can move normally, and when the threaded block 24 moves, the second connecting block 33 will move inside the second square groove 32, thereby enabling the threaded block 24 to move smoothly.

[0040] like Figure 3and Figure 4 As shown, a positioning groove 17 is provided on one side of the top of the U-shaped steel 7, a mounting block 18 is fixedly installed on the top of the first connecting block 5, a spring 19 is elastically connected inside the mounting block 18, and a positioning block 20 located inside the positioning groove 17 is fixedly installed at one end of the spring 19.

[0041] Through the design of the mounting block 18, the spring 19 and the positioning block 20, after the U-shaped steel 7 is inserted into the inside of the socket 6, the surface of the U-shaped steel 7 will contact the surface of the positioning block 20, and then the positioning block 20 will be squeezed and contracted into the inside of the mounting block 18. Then the spring 19 will be squeezed, and the bottom end of the U-shaped steel 7 will contact the surface of the steel cage, so that the positioning block 20 can be aligned with the positioning groove 17. Then the compressed spring 19 will push the positioning block 20 into the inside of the positioning groove 17, and then positioning can be performed. After the positioning is completed, the square hole 8 will be aligned with the surface of the first plug block 16, thereby facilitating the first plug block 16 to enter the inside of the square hole 8.

[0042] like Figure 3 and Figure 7 As shown, the positioning block 20 is semicircular in design and has a smooth surface. The surface of the positioning block 20 fully fits the interior of the positioning groove 17. The sliding hole 28 is inclined in design. The second slider 30 is cylindrical in design, and the size of the second slider 30 is adapted to the sliding hole 28.

[0043] Through the design of the positioning block 20, since the positioning block 20 is semicircular in design and has a smooth surface, it is convenient for the positioning block 20 to disengage from the interior of the positioning groove 17, thereby making the U-shaped steel 7 move more smoothly. Through the design of the sliding hole 28 and the second slider 30, since the second slider 30 is cylindrical in design and has a smooth surface, it is convenient for the second slider 30 to slide inside the sliding hole 28, and the sliding hole 28 is an inclined design, so when the second slider 30 moves, the movable plate 27 will move up or down.

[0044] like Figure 6 and Figure 9 As shown, the number of the limiting grooves 25 and the limiting rods 26 are both two, and the limiting grooves 25 and the limiting rods 26 are designed to be longitudinally symmetrical about the center of the connecting shell 34. The slide groove 10 and the first slider 11 are both T-shaped, and the surface of the first slider 11 fully fits with the inner wall of the slide groove 10.

[0045] Through the design of the limiting groove 25 and the limiting rod 26, since the limiting groove 25 and the limiting rod 26 are symmetrically designed, when the movable plate 27 moves, the limiting rod 26 will move inside the limiting groove 25, thereby limiting the moving direction of the movable plate 27, so that the movable plate 27 can move smoothly. Through the design of the slide groove 10 and the first slider 11, since the slide groove 10 and the first slider 11 are both T-shaped, when the first slider 11 moves, it can support the first rack 12 and the second rack 13 to avoid the position of the first rack 12 and the second rack 13 from shifting.

[0046] like Figure 8 As shown, the front end of the rotating rod 23 passes through the first guardrail body 1 and is fixedly mounted with a handle located outside the first guardrail body 1. There is a gap between the rotating rod 23 and the movable plate 27, and the rotating rod 23 and the movable plate 27 do not interfere with each other.

[0047] Through the design of the rotating rod 23, the operator can hold the handle and then easily rotate the rotating rod 23 to allow the inserting plate 31 to enter the first square groove 22. Through the design of the rotating rod 23 and the movable plate 27, when the movable plate 27 is raised or lowered, there is a gap between the rotating rod 23 and the movable plate 27, and thus when the movable plate 27 moves, the rotating rod 23 will not interfere with the movable plate 27.

[0048] The workflow of the technical solution of the present invention is as follows:

[0049] First, the operator splices the first guardrail body 1 and the second guardrail body 2 together, and then inserts the second plug-in block 21 at the right end of the second guardrail body 2 into the interior of the connecting shell 34. The first square groove 22 at the bottom end of the second plug-in block 21 will be aligned with the plug-in plate 31. Then, the handle is turned, and the handle drives the rotating rod 23 to rotate. When the rotating rod 23 rotates, the threaded block 24 moves, and the threaded block 24 drives the U-shaped plate 29 and the second slider 30 to move. The second slider 30 moves inside the sliding hole 28, and the movable plate 27 moves upward to lift the plug-in plate 31 into the interior of the first square groove 22, thereby fixing the second plug-in block 21 inside the connecting shell 34 and completing the splicing.

[0050] After the splicing is completed, the first guardrail body 1 and the second guardrail body 2 are placed on the edge of the lock body, and the U-shaped steel 7 is inserted into the gap of the steel cage inside the lock body, so that the two ends of the U-shaped steel 7 are inserted into the inside of the socket 6. The surface of the U-shaped steel 7 contacts the surface of the positioning block 20, and the positioning block 20 is squeezed and retracted into the inside of the mounting block 18. Then the positioning block 20 squeezes the spring 19. When the bottom end of the U-shaped steel 7 contacts the surface of the steel cage, the positioning block 20 is aligned with the positioning groove 17, and then the compressed spring 19 will push the positioning block 20 into the inside of the positioning groove 17. When the positioning block 20 enters the positioning groove 17 is inside, the first plug block 16 is also aligned with the square hole 8, and then the gear 14 is rotated, and the gear 14 drives the first rack 12 and the second rack 13 to move toward each other, and the first rack 12 and the second rack 13 push the mounting plate 15 and the first plug block 16 to move toward each other, and then the first plug block 16 enters the inside of the square hole 8, thereby fixing the U-shaped steel 7, and then the U-shaped steel 7 fixes the first guardrail body 1 and the second guardrail body 2 to the edge of the lock body. The first guardrail body 1 and the second guardrail body 2 ensure the safety of the construction workers and prevent people from falling or objects from falling, and finally complete the operation process.

[0051] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0052] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A temporary guardrail for the bottom plate of a ship lock chamber, comprising a first guardrail body and a second guardrail body, characterized in that: The rear ends of the first guardrail body and the second guardrail body are provided with connecting rods, and the bottom ends of the connecting rods are both provided with fixing rods; The fixing mechanism is arranged on the top end of the fixing rod, and the fixing mechanism includes a first connecting block, the first connecting block is arranged on the top end of the fixing rod, and both ends of the surface of the first connecting block are provided with a socket, a U-shaped steel is provided inside the socket, and the surfaces of both ends of the U-shaped steel are provided with a square hole, the top end of the first connecting block is fixedly installed with a fixing shell, one side of the interior of the fixing shell is provided with a slide groove, and the number of the slide grooves is two, and the interiors of the two slide grooves are slidably connected with the first slider, one end of the two first sliders are fixedly installed with a first rack and a second rack, the middle part of the interior of the fixing shell is rotatably connected with a gear meshing with the first rack and the second rack, the first rack and the second rack facing one side are fixedly installed with a mounting plate, and the first plug block located inside the square hole is fixedly installed on the opposite side of the mounting plate; The cam is fixedly mounted on a support frame, and the cam is secured on a flat plate with a top end facing the support frame, and the cam is secured on a flat plate with a top end facing the support frame.

2. The temporary guardrail for the bottom plate of the ship lock chamber according to claim 1, characterized in that: A second square groove is formed at the bottom end of the connecting shell. A second connecting block is slidably connected to the inside of the second square groove. The top end of the second connecting block is fixedly connected to the bottom end of the threaded block.

3. The temporary guardrail for the bottom plate of the ship lock chamber according to claim 1, characterized in that: A positioning groove is provided on one side of the top of the U-shaped steel, a mounting block is fixedly installed on the top of the first connecting block, a spring is elastically connected inside the mounting block, and a positioning block located inside the positioning groove is fixedly installed on one end of the spring.

4. The temporary guardrail for the bottom plate of the ship lock chamber according to claim 3 is characterized in that: The positioning block is semicircular in design and has a smooth surface, and the surface of the positioning block fully fits the interior of the positioning groove.

5. The temporary guardrail for the bottom plate of the ship lock chamber according to claim 1, characterized in that: The sliding hole is designed to be inclined, the second sliding block is designed to be cylindrical, and the size of the second sliding block is adapted to the sliding hole.

6. The temporary guardrail for the bottom plate of the ship lock chamber according to claim 1, characterized in that: There are two limit grooves and two limit rods, and the limit grooves and the limit rods are designed to be longitudinally symmetrical with respect to the center of the connecting shell.

7. The temporary guardrail for the bottom plate of the ship lock chamber according to claim 1, characterized in that: The chute and the first slider are both T-shaped, and the surface of the first slider fully fits the inner wall of the chute.

8. The temporary guardrail for the bottom plate of the ship lock chamber according to claim 2, characterized in that: The front end of the rotating rod passes through the first guardrail body and is fixedly mounted with a handle located outside the first guardrail body.

9. The temporary guardrail for the bottom plate of the ship lock chamber according to claim 2, characterized in that: There is a gap between the rotating rod and the moving plate, and the rotating rod and the moving plate do not interfere with each other.

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