Crawling ladder for surge shaft of hydropower station

Abstract

The utility model discloses a ladder stand for a surge shaft of a hydropower station, and relates to the field of hydropower station construction engineering. Comprising more than two climbing frames; the climbing frame comprises a left vertical pipe and a right vertical pipe which are parallel to each other; the climbing frame further comprises a horizontal ladder beam; the bottom ends of the left vertical pipe and the right vertical pipe are connected with the top surface of the horizontal ladder beam; the climbing frame further comprises a plurality of horizontal foot bars which are uniformly arranged up and down and are parallel to one another; the left ends of the horizontal foot bars are connected with the left vertical pipe, and the right ends are connected with the right vertical pipe; the top ends of the left vertical pipe and the right vertical pipe are connected with grapnels; and the grappling hooks of the lower climbing frame hook the horizontal ladder beams of the upper climbing frame adjacent to the lower climbing frame. According to the utility model, an operator can adjust the pressure well up and down through the crawling ladder; when the surge shaft construction operation is completed and the crawling ladder needs to be disassembled, the crawling frames can be taken down only by separating the claw hooks of each crawling frame from the horizontal ladder beams of the adjacent upper crawling frames, so that all the crawling frames are taken down in sequence, and the disassembly work of the crawling ladder is completed; the dismounting process is convenient to operate, short in time and high in dismounting efficiency.

Description

Technical Field

[0001] The utility model relates to the field of hydropower station construction engineering, in particular to a ladder used for a pressure regulating shaft of a hydropower station. Background Art

[0002] In high-head hydropower stations, setting up surge wells can reduce the water hammer pressure of high-pressure pipelines, alleviate the water hammer effect and improve the operating conditions of the units, but their structure is complex and their depth is extremely deep, generally exceeding 70m. Therefore, it is often necessary to use a surge well ladder to go up and down the surge well.

[0003] The surge tank ladder is a facility used to assist operators in going up and down the surge tank. The setting of the surge tank ladder can not only improve work efficiency, but also ensure the safety of the staff. The existing surge tank ladders in hydropower stations often adopt the method of driving short anchor rods at each step and welding rungs on site. After the surge tank construction work is completed, it is difficult to dismantle the surge tank ladder, and the dismantling time is long and the efficiency is low.

[0004] Therefore, it is extremely important to propose a ladder that is used for a surge tank in a hydropower station and is easy to disassemble. Utility Model Content

[0005] The utility model aims to solve the problems that the existing pressure regulating well climbing ladder is difficult to disassemble, takes a long time to disassemble and has low efficiency.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is: a ladder for a surge tank of a hydropower station, comprising more than two climbing frames;

[0007] The climbing frame includes a left vertical pipe and a right vertical pipe which are parallel to each other; the climbing frame also includes a horizontal ladder beam; the bottom ends of the left vertical pipe and the right vertical pipe are connected to the top surface of the horizontal ladder beam; the climbing frame also includes a plurality of horizontal step rods which are evenly arranged up and down and parallel to each other; the left ends of the horizontal step rods are connected to the left vertical pipe, and the right ends are connected to the right vertical pipe; the top ends of the left vertical pipe and the right vertical pipe are connected to grab hooks;

[0008] The grab hook of the climbing frame at the bottom hooks the horizontal ladder beam of the adjacent climbing frame above it; the horizontal ladder beam of the lowest climbing frame is used to connect with the bottom of the pressure regulating well, and the top of the highest climbing frame is used to connect with the wellhead of the pressure regulating well.

[0009] Furthermore, it also includes an intermediate platform; the intermediate platform includes two mutually parallel first horizontal support beams, and the left end of the first horizontal support beam is anchored into the wall of the pressure regulating well; the intermediate platform also includes a left platform beam and a right platform beam that are parallel to each other; the left platform beam and the right platform beam are perpendicular to the first horizontal support beam; the left platform beam is connected to the middle of the two first horizontal support beams, and the right platform beam is connected to the right ends of the two first horizontal support beams;

[0010] The left platform beam is used to be hooked by the grab hook of the climbing frame located below it, and is also used to be connected with the horizontal ladder beam of the climbing frame located above it;

[0011] The middle platform also includes a platform plate; the platform plate is respectively connected with two first horizontal support beams, a left platform beam and a right platform beam; the platform plate is provided with an access hole, which is arranged just above the climbing frame below.

[0012] Furthermore, it also includes a second horizontal support beam; the second horizontal support beam is parallel to the first horizontal support beam; the left end of the second horizontal support beam is anchored into the wall of the pressure regulating well; the left platform beam is connected to the middle part of the second horizontal support beam, and the right platform beam is connected to the right end of the second horizontal support beam; the second horizontal support beam passes through the edge of the manhole and is connected to the platform plate.

[0013] Furthermore, a protective railing is provided around the platform plate.

[0014] Furthermore, a shielding plate is connected above the platform plate through a vertical pole, and the shielding plate is located directly above the manhole.

[0015] Furthermore, the climbing frame is connected to a protective cage.

[0016] Furthermore, the horizontal ladder beam is an H-shaped steel; the left riser, the right riser and the H-shaped steel web are in the same plane; the lower sides of the left riser and the lower sides of the right riser are connected to the top surface of the horizontal ladder beam through stiffening plates, and the stiffening plates and the left riser, the right riser and the H-shaped steel web are in the same plane.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model is provided with more than two climbing frames, and the grabbing hooks of the climbing frames located at the bottom hook the horizontal ladder beams of the climbing frames adjacent to the upper ones, the horizontal ladder beams of the lowest climbing frame are connected to the bottom of the pressure regulating well, and the top of the highest climbing frame is connected to the wellhead of the pressure regulating well; this arrangement enables operators to go up and down the pressure regulating well by climbing ladders; when the construction work of the pressure regulating well is completed and the ladder needs to be disassembled, the climbing frame can be removed by only disengaging the grabbing hooks of each climbing frame from the horizontal ladder beams of the climbing frame adjacent to the upper one, thereby removing all the climbing frames in turn to complete the disassembly of the ladder; this disassembly process is easy to operate, takes a short time, and has a high disassembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the climbing frame of the utility model.

[0020] Figure 2 It is a schematic diagram of the middle platform of the utility model.

[0021] Figure 3 It is a schematic diagram of the use state of the utility model.

[0022] The meanings of the numbers in the figure are: 1. Left vertical pipe; 2. Right vertical pipe; 3. Horizontal ladder beam; 4. Horizontal tread; 5. Grab hook; 6. First horizontal support beam; 6a. Second horizontal support beam; 7. Left platform beam; 8. Right platform beam; 9. Platform plate; 10. Manhole; 11. Guardrail; 12. Guard cage; 13. Vertical pole; 14. Shielding plate; 15. Stiffening plate. DETAILED DESCRIPTION

[0023] The technical solution of the utility model is clearly and completely described below in conjunction with the drawings and specific implementation methods of the specification. The described embodiment is one embodiment of the utility model, and the utility model may also have other implementation methods.

[0024] Example:

[0025] See also Figure 1 , Figure 3 , the utility model is a climbing ladder for a surge tank in a hydropower station, comprising more than two climbing frames;

[0026] The climbing frame includes a left vertical pipe 1 and a right vertical pipe 2 which are parallel to each other; the climbing frame also includes a horizontal ladder beam 3; the bottom ends of the left vertical pipe 1 and the right vertical pipe 2 are connected to the top surface of the horizontal ladder beam 3; the climbing frame also includes a plurality of horizontal step rods 4 which are evenly arranged up and down and parallel to each other; the left ends of the horizontal step rods 4 are connected to the left vertical pipe 1, and the right ends are connected to the right vertical pipe 2; the top ends of the left vertical pipe 1 and the right vertical pipe 2 are connected to a grab hook 5;

[0027] The grab hook 5 of the climbing frame located below hooks the horizontal ladder beam 3 of the adjacent climbing frame above it; the horizontal ladder beam 3 of the lowest climbing frame is used to connect with the bottom of the pressure regulating well, and the top of the highest climbing frame is used to connect to the wellhead of the pressure regulating well.

[0028] In this embodiment, the utility model is provided with more than two climbing frames, the grab hook 5 of the climbing frame located at the bottom hooks the horizontal ladder beam 3 of the climbing frame adjacent to it, the horizontal ladder beam 3 of the lowest climbing frame is connected to the bottom of the pressure regulating well, and the top of the highest climbing frame is connected to the wellhead of the pressure regulating well; this arrangement enables operators to climb up and down the pressure regulating well by climbing the ladder; when the construction of the pressure regulating well is completed and the ladder needs to be removed, it is only necessary to disengage the grab hook 5 of each climbing frame from the horizontal ladder beam 3 of the climbing frame adjacent to it to remove the climbing frame, so as to remove all the climbing frames in turn and complete the disassembly of the ladder; this disassembly process is convenient to operate, takes a short time and has high disassembly efficiency. Since the utility model adopts a pre-made climbing frame, it can achieve rapid assembly during assembly; the application of the rapid assembly ladder in the construction of the pressure regulating well of the hydropower station saves construction costs and construction time to a great extent, and the characteristics of the ladder being quick to assemble and convenient to disassemble also realize the reuse of resources.

[0029] As a preferred embodiment, see Figure 2, and also includes an intermediate platform; the intermediate platform includes two mutually parallel first horizontal support beams 6, and the left end of the first horizontal support beam 6 is anchored into the wall of the pressure regulating shaft; the intermediate platform also includes a left platform beam 7 and a right platform beam 8 which are parallel to each other; the left platform beam 7 and the right platform beam 8 are perpendicular to the first horizontal support beam 6; the left platform beam 7 is connected to the middle of the two first horizontal support beams 6, and the right platform beam 8 is connected to the right ends of the two first horizontal support beams 6;

[0030] The left platform beam 7 is used to be hooked by the grab hook 5 of the climbing frame located below it, and is also used to be connected to the horizontal ladder beam 3 of the climbing frame located above it;

[0031] The middle platform also includes a platform plate 9; the platform plate 9 is connected with two first horizontal support beams 6, a left platform beam 7, and a right platform beam 8 on all sides; the platform plate 9 is provided with an access hole 10, which is arranged just above the climbing frame below.

[0032] In this embodiment, an intermediate platform is provided so that operators can get proper rest while climbing up and down the ladder; and the entire ladder is made more stable by supporting the intermediate platform through the first horizontal support beam 6 anchored in the wall of the pressure regulating well.

[0033] As a preferred embodiment, see Figure 2 , and also includes a second horizontal support beam 6a; the second horizontal support beam 6a is parallel to the first horizontal support beam 6; the left end of the second horizontal support beam 6a is anchored into the wall of the pressure regulating well; the left platform beam 7 is connected to the middle part of the second horizontal support beam 6a, and the right platform beam 8 is connected to the right end of the second horizontal support beam 6a; the second horizontal support beam 6a passes through the edge of the manhole 10 and is connected to the platform plate 9.

[0034] In this embodiment, the second horizontal support beam 6a is provided to strengthen the edge of the upper manhole 10, so that the platform plate 9 has greater rigidity and is more stable.

[0035] As a preferred embodiment, see Figure 2 A protective railing 11 is provided around the platform plate 9.

[0036] In this embodiment, the guardrail 11 can provide better protection for the operator and ensure the safety of the operator.

[0037] As a preferred embodiment, see Figure 2 A shielding plate 14 is connected above the platform plate 9 through a vertical rod 13 , and the shielding plate 14 is located just above the manhole 10 .

[0038] In this embodiment, a shielding plate 14 is provided just above the manhole 10 to prevent falling objects from injuring the operator, thereby ensuring the safety of the operator.

[0039] As a preferred embodiment, see Figure 2 , Figure 3 The climbing frame is connected with a protective cage 12.

[0040] In this embodiment, the climbing frame is connected with a guard cage 12 along the ascending direction. The guard cage 12 can provide protection for the operator when climbing up and down the ladder, thereby ensuring the safety of the operator.

[0041] As a preferred embodiment, see Figure 1 The horizontal ladder beam 3 is an H-shaped steel; the left riser 1, the right riser 2 and the H-shaped steel web are in the same plane; both sides of the lower part of the left riser 1 and the lower part of the right riser 2 are connected to the top surface of the horizontal ladder beam 3 through the stiffening plate 15, and the stiffening plate 15 and the left riser 1, the right riser 2 and the H-shaped steel web are all in the same plane.

[0042] In this embodiment, the stiffening plate 15 is provided to increase the reliability of the connection between the left vertical pipe 1, the right vertical pipe 2 and the horizontal ladder beam 3; and the stiffening plate 15, the left vertical pipe 1, the right vertical pipe 2 and the H-shaped steel web are all in the same plane, making the horizontal ladder beam 3 less likely to be damaged when subjected to force.

[0043] The terms “connection”, “fixation” and “docking” appearing in the description of the present invention may refer to fixed connection, processing, welding or mechanical connection. The specific meanings of the above terms in the present invention shall be understood according to the specific circumstances.

[0044] In the description of the present invention, the terms "inside", "upper", "lower", "end", "side", "outside", etc., which indicate the orientation or position relationship, are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying a specific orientation that the device or element referred to must have, and therefore cannot be understood as a limitation on the present invention.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A ladder for a surge tank in a hydropower station, characterized in that: Including two or more climbing frames; The climbing frame comprises a left vertical pipe (1) and a right vertical pipe (2) which are parallel to each other; the climbing frame also comprises a horizontal ladder beam (3); the bottom ends of the left vertical pipe (1) and the right vertical pipe (2) are connected to the top surface of the horizontal ladder beam (3); the climbing frame also comprises a plurality of horizontal step rods (4) which are evenly arranged up and down and parallel to each other; the left ends of the horizontal step rods (4) are connected to the left vertical pipe (1), and the right ends are connected to the right vertical pipe (2); the top ends of the left vertical pipe (1) and the right vertical pipe (2) are connected to grab hooks (5); The grab hook (5) of the climbing frame located at the bottom hooks the horizontal ladder beam (3) of the climbing frame adjacent to it above; the horizontal ladder beam (3) of the lowest climbing frame is used to connect to the bottom of the pressure regulating well, and the top of the highest climbing frame is used to connect to the wellhead of the pressure regulating well.

2. A ladder for a surge tank in a hydropower station according to claim 1, characterized in that: It also includes an intermediate platform; the intermediate platform includes two mutually parallel first horizontal support beams (6), the left end of the first horizontal support beam (6) being anchored in the wall of the pressure regulating well; the intermediate platform also includes a left platform beam (7) and a right platform beam (8) which are mutually parallel; the left platform beam (7) and the right platform beam (8) are perpendicular to the first horizontal support beam (6); the left platform beam (7) is connected to the middle parts of the two first horizontal support beams (6), and the right platform beam (8) is connected to the right ends of the two first horizontal support beams (6); The left platform beam (7) is used to be hooked by a grab hook (5) of a climbing frame located below it, and is also used to be connected to a horizontal ladder beam (3) of a climbing frame located above it; The middle platform also includes a platform plate (9); the platform plate (9) is respectively connected to two first horizontal support beams (6), a left platform beam (7), and a right platform beam (8); the platform plate (9) is provided with an access hole (10), and the access hole (10) is arranged directly above the climbing frame below.

3. A ladder for a surge tank in a hydropower station according to claim 2, characterized in that: It also includes a second horizontal support beam (6a); the second horizontal support beam (6a) is parallel to the first horizontal support beam (6); the left end of the second horizontal support beam (6a) is anchored into the wall of the pressure regulating well; the left platform beam (7) is connected to the middle part of the second horizontal support beam (6a), and the right platform beam (8) is connected to the right end of the second horizontal support beam (6a); the second horizontal support beam (6a) passes through the edge of the manhole (10) and is connected to the platform plate (9).

4. A ladder for a surge tank in a hydropower station according to claim 2, characterized in that: A protective railing (11) is provided around the platform plate (9).

5. A ladder for a surge tank in a hydropower station according to claim 2, characterized in that: A shielding plate (14) is connected above the platform plate (9) via a vertical rod (13), and the shielding plate (14) is located directly above the manhole (10).

6. A ladder for a surge tank in a hydropower station according to claim 1, characterized in that: The climbing frame is connected to a protective cage (12).

7. The ladder for a surge tank in a hydropower station according to claim 1, characterized in that: The horizontal ladder beam (3) is an H-shaped steel; the left vertical pipe (1), the right vertical pipe (2) and the H-shaped steel web are in the same plane; both sides of the lower part of the left vertical pipe (1) and both sides of the lower part of the right vertical pipe (2) are connected to the top surface of the horizontal ladder beam (3) through a stiffening plate (15), and the stiffening plate (15) and the left vertical pipe (1), the right vertical pipe (2) and the H-shaped steel web are all in the same plane.

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