Anti-corrosion operation trolley for pressure steel pipe transportation
By designing a pressure steel pipe transportation and anti-corrosion operation trolley with a mobile base and internal and external construction platforms, the problems of hoisting pressure steel pipes in the workshop and setting up support platforms multiple times were solved, realizing vertical transportation and efficient anti-corrosion operation, reducing construction costs and improving safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SINOHYDRO BUREAU 8 CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-05-12
AI Technical Summary
In the existing technology, the anti-corrosion operation of pressure steel pipes in the workshop has problems such as difficulty in hoisting, low construction efficiency and high cost. In particular, when horizontally placed steel pipes need to be converted to a vertical position, hoisting devices are difficult to install, and the need to erect support platforms multiple times affects construction efficiency and cost.
A pressure steel pipe transportation and anti-corrosion operation trolley was designed, which includes a mobile base, an inner construction platform, and an outer construction platform. It allows the pressure steel pipe to be vertically inserted and transported on a track via the mobile base. The inner and outer construction platforms are used for anti-corrosion operations on the inner and outer walls, respectively, avoiding hoisting and conversion within the workshop and the need to erect support platforms multiple times.
It improves construction efficiency, reduces construction troubles and costs, realizes time-saving and labor-saving anti-corrosion operation, and improves operation safety.
Smart Images
Figure CN224225061U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of construction equipment for pressure steel pipes in hydropower stations, and specifically to a pressure steel pipe transportation and anti-corrosion operation trolley. Background Technology
[0002] Currently, the manufacturing scale of pressure steel pipes for hydropower stations is large. These pipes are formed by splicing multiple sections, each approximately 3 meters long, heavy, and numerous. Individual sections need to be transported to a workshop where they undergo a series of anti-corrosion processes, including surface sandblasting, primer coating, intermediate coat coating, topcoat coating, and cement slurry coating of the outer wall of the buried pipe, before assembly. However, the anti-corrosion process easily generates noise and dust pollution; therefore, the workshop must have excellent sealing performance, with the sides and top sealed. The current method for transporting pipe sections from outside the workshop involves first horizontally hoisting them onto a traveling trolley outside the workshop, then using the trolley to transport them to the corresponding equipment inside the workshop, and finally suspending them vertically for anti-corrosion work.
[0003] Chinese patent application number 201720510888.2 discloses a trolley for preventing the tipping of ultra-large diameter pressure steel pipes. Specifically, it discloses a main support beam, a secondary support beam, an arc-shaped support plate, a wheel frame, and rollers. The main support beam is composed of two welded I-beams and installed in the middle of the wheel frame. The secondary support beam is also composed of welded I-beams and installed between the two main support beams. The wheel frame is composed of two channel steels welded back-to-back. Two sets of rollers contact the transport track and are installed at the front and rear ends of the wheel frame. The arc-shaped support plate on the wheel frame fits tightly against the arc of the outer wall of the ultra-large diameter pressure steel pipe. By increasing the weight of the trolley and increasing the contact area with the track, the overall center of gravity of the pressure steel pipe during installation and transportation is lowered, effectively avoiding the safety risk of tipping over during the installation and transportation of ultra-large diameter pressure steel pipes. However, this trolley for preventing the tipping of ultra-large diameter pressure steel pipes has the following shortcomings:
[0004] 1) After the pressure steel pipe is placed horizontally and transported to the workshop, it needs to be hoisted to a vertical position. However, due to the height of the workshop, the hoisting device is difficult to install, making the hoisting operation in the workshop quite troublesome.
[0005] 2) In order to carry out the overall anti-corrosion operation of the pressure steel pipe in the workshop, it is necessary to set up support platforms inside and outside the pressure steel pipe. This means that for each section, the support platform needs to be disassembled and set up again, which is time-consuming, labor-intensive, affects construction efficiency, and increases construction costs. Utility Model Content
[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a pressure steel pipe transportation and anti-corrosion operation trolley that saves time and effort, reduces construction troubles, lowers construction costs, and improves construction efficiency.
[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0008] A pressure steel pipe transport and anti-corrosion operation trolley includes a movable base, an inner construction platform and an outer construction platform disposed on the movable base, wherein the inner construction platform and the outer construction platform are spaced apart to form a vertical interval for vertical insertion of pressure steel pipes, the movable base is provided with a support platform at the bottom of the vertical interval, the inner construction platform is provided with a passage in the middle, and the movable base is provided with a channel communicating with the passage at the bottom.
[0009] As a further improvement to the above technical solution:
[0010] Both the inner and outer construction platforms are circular and coaxial.
[0011] The outer side of the external construction platform is equipped with an outer guardrail.
[0012] The outer guardrail is equipped with an entrance / exit gate.
[0013] An external ladder is provided below the entrance / exit door.
[0014] The inner side of the inner construction platform is equipped with an inner guardrail.
[0015] The inner guardrail has an entrance and exit.
[0016] An internal ladder is provided below the entrance and exit.
[0017] It also includes a track located at the bottom of the anti-corrosion workshop, which extends through the door of the anti-corrosion workshop to the outside, and the movable base is slidably supported on the track.
[0018] The anti-corrosion workshop is equipped with a traction mechanism. The two ends of the track are respectively equipped with a front steering pulley and a rear steering pulley. The traction mechanism includes a winch, a first traction rope and a second traction rope. The winch is located on the top of the anti-corrosion workshop and is connected to the front end of the mobile base through the first traction rope or to the rear end of the mobile base through the second traction rope. The first traction rope is wound around the front steering pulley and the second traction rope is wound around the rear steering pulley.
[0019] Compared with the prior art, the advantages of this utility model are:
[0020] The construction process of this utility model's pressure steel pipe transportation and anti-corrosion operation trolley is as follows: First, the pressure steel pipe is hoisted onto the mobile base outside the anti-corrosion workshop, so that the pressure steel pipe is vertically inserted into the vertical interval and supported on the bearing platform; second, the mobile base transports the pressure steel pipe to the anti-corrosion operation equipment inside the anti-corrosion workshop; then, the operators perform anti-corrosion operation on the outer wall of the pressure steel pipe on the outer construction platform, and enter the inner construction platform through the passage and access to perform anti-corrosion operation on the inner wall of the pressure steel pipe; after the operation is completed, the mobile base returns the pressure steel pipe to the outside of the anti-corrosion workshop. This pressure steel pipe transport and anti-corrosion operation trolley has several advantages. First, it vertically supports the pressure steel pipes, placing them relatively horizontally. This eliminates the need to hoist the pressure steel pipes to a vertical position inside the anti-corrosion workshop, avoiding the installation of corresponding hoisting devices and improving operational efficiency. Second, the mobile base is equipped with an inner and outer construction platform, eliminating the need to repeatedly erect support platforms inside and outside each pipe section (pressure steel pipes are formed by splicing multiple pipe sections, and the mobile base transports one pipe section at a time). This saves time and effort, reduces construction hassles, lowers construction costs, and improves construction efficiency. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural diagram of the pressure steel pipe transportation and anti-corrosion operation trolley of this utility model.
[0022] Figure 2 This is a schematic diagram of the inner and outer construction platforms of the pressure steel pipe transport and anti-corrosion operation trolley of this utility model.
[0023] Figure 3 This is a schematic diagram of the moving base of the pressure steel pipe transport and anti-corrosion operation trolley of this utility model when it is moving forward.
[0024] Figure 4 This is a schematic diagram of the structure of the mobile base of the pressure steel pipe transport and anti-corrosion operation trolley when it is retracted.
[0025] The labels in the diagram represent:
[0026] 1. Mobile base; 2. Inner construction platform; 21. Inner guardrail; 22. Entrance / exit; 23. Inner ladder; 3. Outer construction platform; 31. Outer guardrail; 32. Entrance / exit; 33. Outer ladder; 4. Vertical partition; 5. Pressure steel pipe; 6. Support platform; 7. Passageway; 8. Passageway; 9. Track; 91. Front steering pulley; 92. Rear steering pulley; 93. First traction rope; 94. Second traction rope. Detailed Implementation
[0027] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0028] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0031] Figures 1 to 4 This invention illustrates an embodiment of the pressure steel pipe transport and anti-corrosion operation trolley. The pressure steel pipe transport and anti-corrosion operation trolley of this embodiment includes a movable base 1, and an inner construction platform 2 and an outer construction platform 3 disposed on the movable base 1. A vertical interval 4 is formed between the inner construction platform 2 and the outer construction platform 3 to allow the pressure steel pipe 5 to be vertically inserted. The movable base 1 is provided with a support platform 6 at the bottom of the vertical interval 4. The inner construction platform 2 is provided with a passage 7 in the middle. The movable base 1 is provided with a channel 8 at the bottom that communicates with the passage 7.
[0032] Construction process: First, outside the anti-corrosion workshop, the pressure steel pipe 5 is hoisted onto the mobile base 1, so that the pressure steel pipe 5 is vertically inserted into the vertical interval 4 and supported on the bearing platform 6; second, the mobile base 1 transports the pressure steel pipe 5 to the anti-corrosion operation equipment inside the anti-corrosion workshop; then, the operators carry out anti-corrosion work on the outer side wall of the pressure steel pipe 5 on the outer construction platform 3, and enter the inner construction platform 2 through the passage 8 and the access port 7 to carry out anti-corrosion work on the inner side wall of the pressure steel pipe 5; after the work is completed, the mobile base 1 returns the pressure steel pipe 5 to the outside of the anti-corrosion workshop. This pressure steel pipe transport and anti-corrosion operation trolley has several advantages. First, it vertically supports the pressure steel pipe 5, placing it relatively horizontally. This eliminates the need to hoist the pressure steel pipe 5 to a vertical position inside the anti-corrosion workshop, avoiding the installation of corresponding hoisting devices and improving operational efficiency. Second, the mobile base 1 is equipped with an inner construction platform 2 and an outer construction platform 3, eliminating the need to repeatedly erect support platforms inside and outside each pipe section (the pressure steel pipe 5 is formed by splicing multiple pipe sections, and the mobile base 1 transports one pipe section of the pressure steel pipe 5 at a time). This saves time and effort, reduces construction hassles, lowers construction costs, and improves construction efficiency.
[0033] Furthermore, in this embodiment, both the inner construction platform 2 and the outer construction platform 3 are annular and coaxial. This facilitates construction operations around the pressure steel pipe 5. Figure 1 The pressure steel pipe 5 shown is half of a pipe section of the pressure steel pipe 5. The other half is not shown so that the inner construction platform 2 can be seen clearly.
[0034] Furthermore, in this embodiment, as Figure 1 and Figure 2 As shown, an outer guardrail 31 is provided on the outside of the outer construction platform 3 to prevent workers from falling off the outside of the outer construction platform 3 and improve work safety.
[0035] Furthermore, in this embodiment, the outer guardrail 31 is provided with an entrance / exit door 32 to facilitate workers' access to and from the outer construction platform 3. Specifically, one side of the entrance / exit door 32 is hinged to the outer guardrail 31, and the other side is connected to the outer guardrail 31 via a latch for easy opening and closing.
[0036] Furthermore, in this embodiment, an external ladder 33 is provided below the entrance door 32 to facilitate workers to go up and down the external construction platform 3.
[0037] Furthermore, in this embodiment, an inner guardrail 21 is provided on the inner side of the inner construction platform 2 to prevent workers from falling from the inner side of the inner construction platform 2 and improve work safety.
[0038] Furthermore, in this embodiment, the inner guardrail 21 is provided with an entrance and exit 22 to facilitate workers to enter and exit the inner construction platform 2.
[0039] Furthermore, in this embodiment, an inner ladder 23 is provided below the entrance / exit 22 to facilitate workers to go up and down the inner construction platform 2.
[0040] Furthermore, in this embodiment, a track 9 is also provided at the bottom of the anti-corrosion workshop. The track 9 extends to the outside through the door of the anti-corrosion workshop, and the movable base 1 is slidably supported on the track 9.
[0041] Furthermore, in this embodiment, a traction mechanism is provided in the anti-corrosion workshop. The two ends of the track 9 are respectively provided with a front steering pulley 91 and a rear steering pulley 92. The traction mechanism includes a winch, a first traction rope 93 and a second traction rope 94. The winch is located on the top of the anti-corrosion workshop and is connected to the front end of the mobile base 1 through the first traction rope 93 or to the rear end of the mobile base 1 through the second traction rope 94. The first traction rope 93 is wound around the front steering pulley 91 and the second traction rope 94 is wound around the rear steering pulley 92.
[0042] Specific construction process: First, the movable base 1 is located on the track 9 outside the anti-corrosion workshop. The pressure steel pipe 5 is hoisted onto the movable base 1 outside the workshop, so that the pressure steel pipe 5 is vertically inserted into the vertical interval 4 and supported on the bearing platform 6; secondly, as... Figure 3 As shown, the first traction rope 93 is connected to the front end of the mobile base 1, and the first traction rope 93 is wound around the front steering pulley 91. The mobile base 1 is moved along the track 9 into the anti-corrosion workshop by the winding motion of the winch, transporting the pressure steel pipe 5 to the anti-corrosion equipment within the workshop. Then, workers perform anti-corrosion work on the outer wall of the pressure steel pipe 5 on the outer construction platform 3, and enter the inner construction platform 2 through the passage 8 and access port 7 to perform anti-corrosion work on the inner wall of the pressure steel pipe 5. After the work is completed, as shown... Figure 4 As shown, the connection between the first traction rope 93 and the movable base 1 is released, and the second traction rope 94 is connected to the rear end of the movable base 1. The second traction rope 94 is wound around the rear steering pulley 92. The movable base 1 is moved along the track 9 to the outside of the anti-corrosion workshop by the winding motion of the winch, and the pressure steel pipe 5 is sent back to the outside of the anti-corrosion workshop. Both the first traction rope 93 and the second traction rope 94 are detachably connected to the movable base 1.
[0043] Furthermore, in this embodiment, rollers are provided on both sides of the movable base 1, and two tracks 9 are provided, arranged in parallel. The rollers on both sides of the movable base 1 are supported on the two parallel tracks 9 respectively. The channel 8 is located between the rollers on both sides of the movable base 1. The height of the channel 8 can be increased by increasing the radius of the rollers, or a trench can be dug at the bottom of the anti-corrosion workshop between the tracks 9 to increase the height of the channel 8, so as to facilitate the passage of workers.
[0044] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.
Claims
1. A pressure steel pipe transport and anti-corrosion operation trolley, characterized in that: It includes a mobile base (1), an inner construction platform (2) and an outer construction platform (3) provided on the mobile base (1). The inner construction platform (2) and the outer construction platform (3) are spaced apart to form a vertical gap (4) for vertical insertion of a pressure steel pipe (5). The mobile base (1) is provided with a support platform (6) at the bottom of the vertical gap (4). The inner construction platform (2) is provided with a passage (7) in the middle. The mobile base (1) is provided with a channel (8) at the bottom that communicates with the passage (7).
2. The pressure steel pipe transport and anti-corrosion operation trolley according to claim 1, characterized in that: The inner construction platform (2) and the outer construction platform (3) are both ring-shaped and coaxial.
3. The pressure steel pipe transport and anti-corrosion operation trolley according to claim 2, characterized in that: The outer side of the external construction platform (3) is provided with an outer guardrail (31).
4. The pressure steel pipe transport and anti-corrosion operation trolley according to claim 3, characterized in that: The outer guardrail (31) is provided with an entrance / exit door (32).
5. The pressure steel pipe transport and anti-corrosion operation trolley according to claim 4, characterized in that: An external ladder (33) is provided below the entrance door (32).
6. The pressure steel pipe transport and anti-corrosion operation trolley according to claim 3, characterized in that: The inner side of the inner construction platform (2) is provided with an inner guardrail (21).
7. The pressure steel pipe transport and anti-corrosion operation trolley according to claim 6, characterized in that: The inner guardrail (21) is provided with an entrance and exit (22).
8. The pressure steel pipe transport and anti-corrosion operation trolley according to claim 7, characterized in that: An internal ladder (23) is provided below the inlet / outlet (22).
9. The pressure steel pipe transport and anti-corrosion operation trolley according to any one of claims 1 to 8, characterized in that: It also includes a track (9) located at the bottom of the anti-corrosion workshop, the track (9) extending through the door of the anti-corrosion workshop to the outside, and the movable base (1) being slidably supported on the track (9).
10. The pressure steel pipe transport and anti-corrosion operation trolley according to claim 9, characterized in that: The anti-corrosion workshop is equipped with a traction mechanism. The two ends of the track (9) are respectively equipped with a front steering pulley (91) and a rear steering pulley (92). The traction mechanism includes a winch, a first traction rope (93) and a second traction rope (94). The winch is located on the top of the anti-corrosion workshop and is connected to the front end of the mobile base (1) through the first traction rope (93) or to the rear end of the mobile base (1) through the second traction rope (94). The first traction rope (93) is wound around the front steering pulley (91), and the second traction rope (94) is wound around the rear steering pulley (92).