A variable diameter transport device for pressure steel pipes in water conservancy engineering tunnels

Abstract

This utility model discloses a variable-diameter transport device for pressure steel pipes in water conservancy engineering tunnels, including a frame body and wheels. The frame body includes a roof plate, a floor plate, and multiple side plates surrounding it. At least two parallel, through-type grooves are provided on the surface of the roof plate. Two brackets are slidably mounted on each groove via a displacement adjustment mechanism. The two brackets are symmetrically arranged and move synchronously towards or in opposite directions under the action of the displacement adjustment mechanism. This utility model allows for rapid adjustment of the distance between the two brackets through the displacement adjustment mechanism, enabling it to support pressure steel pipes of various diameters, effectively improving tunnel construction efficiency, reducing construction costs, and ensuring construction quality and safety.

Description

Technical Field

[0001] This utility model relates to the technical field of steel pipe transportation devices, specifically to a variable diameter transportation device for pressure steel pipes in water conservancy engineering tunnels. Background Technology

[0002] In the construction of water conservancy tunnels, the transportation of pressure steel pipes is a crucial step. Currently, most existing tunnel pressure steel pipe transportation methods utilize fixed-size brackets. This necessitates frequent equipment changes when transporting pressure steel pipes of varying diameters, wasting significant time and manpower, leading to low construction efficiency and substantial increases in costs. While some adjustable transportation devices exist on the market, these generally suffer from complex and cumbersome adjustment processes, requiring operators to spend considerable time and effort, severely impacting construction progress. Furthermore, these adjustable devices exhibit poor stability, prone to swaying and shifting during transportation, failing to guarantee the safe and stable transport of pressure steel pipes and posing a potential threat to construction quality and safety.

[0003] Therefore, a variable diameter transport device for pressure steel pipes in water conservancy engineering tunnels is proposed to address the above problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a variable diameter transportation device for pressure steel pipes in water conservancy engineering tunnels.

[0005] A variable diameter transport device for pressure steel pipes in water conservancy engineering tunnels includes a frame body and wheels. The frame body includes a roof plate, a floor plate, and multiple side plates surrounding it. At least two parallel through grooves are provided on the surface of the roof plate. Two brackets are slidably arranged on each groove through a displacement adjustment mechanism. The two brackets are symmetrically arranged and move synchronously towards or in opposite directions under the drive of the displacement adjustment mechanism.

[0006] A further technical solution is as follows: The displacement adjustment mechanism includes a gear and a slide rod assembly disposed below the slide groove. The slide rod assembly includes two slide rods parallel to the slide groove direction and symmetrically disposed on both sides of the gear. A drive component for driving its rotation is connected to the gear. Two racks are centrally symmetrically distributed on both sides of the gear, and the racks are meshed with the gear teeth. A guide block is disposed on the back side of the proximal end of each rack, and a support block is disposed on the distal end. The guide block is slidably disposed on the corresponding adjacent slide rod, and the support block is simultaneously slidably disposed on both slide rods. A slider is disposed on the top of the support block, and the slider slides in the slide groove and is fixedly connected to the bottom of the bracket.

[0007] A further technical solution is that each slide of the slide block assembly has a connecting seat fixedly connected to both ends, and the top of the connecting seat is fixedly connected to the bottom surface of the roof panel.

[0008] A further technical solution is: the drive assembly includes a drive motor mounted on the vehicle floor, the output end of the drive motor is flange-connected to a reducer, and the output end of the reducer is connected to a gear.

[0009] A further technical solution is: the cross-section of the bracket is trapezoidal in shape, the support surface of the bracket is designed as an arc surface, and the width of the bracket is greater than the width of the slide groove.

[0010] A further technical solution is to install a rubber pad on the support surface.

[0011] A further technical solution is as follows: a fixing plate parallel to the slide is provided on the roof panel on both sides of the slide. Multiple fixing holes are provided at intervals along the extension direction of the fixing plate. Spring pins are installed on the outer walls on both sides of the bracket. The spring pins can be inserted into the fixing holes of the corresponding fixing plates to fix the position of the bracket.

[0012] The beneficial effects of this utility model are:

[0013] This utility model device features at least two sets of brackets on the roof panel surface of the vehicle frame. A displacement adjustment mechanism drives a gear to rotate, which in turn moves two racks on either side. These racks then cause their end supports to slide synchronously in opposite directions along a sliding rod assembly. This, in turn, causes the brackets on the two support blocks to move closer together or further apart, allowing for rapid adjustment of the distance between the two brackets. This enables the device to support pressure steel pipes of various diameters, solving the problems of frequent equipment changes and complex adjustments during the transportation of pressure steel pipes of different diameters in existing technologies. Rubber pads are provided on the brackets to protect the steel pipes and improve stability during transportation. Furthermore, the adjusted brackets are inserted into fixing holes in the fixing plates on the roof panel via spring pins, further locking the position and preventing displacement or loosening during transportation. This ensures stability during transport, effectively improving tunnel construction efficiency, reducing construction costs, and guaranteeing construction quality and safety. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the displacement adjustment mechanism;

[0016] Figure 3 This is a cross-sectional schematic diagram of the main body of the vehicle frame;

[0017] Figure 4 This is a structural schematic diagram of the support block;

[0018] Figure 5 This is a structural diagram of the bracket;

[0019] Figure 6 yes Figure 1 Enlarged diagram of point A in the middle.

[0020] In the picture:

[0021] 1. Frame body, 2. Wheel, 3. Roof plate, 4. Floor plate, 5. Side plate, 6. Slide, 7. Bracket, 8. Gear, 9. Slide rod, 10. Rack, 11. Guide block, 12. Support block, 13. Slider, 14. Connecting seat, 15. Drive motor, 16. Reducer, 17. Rubber pad, 18. Fixing plate, 19. Fixing hole, 20. Spring pin, 21. Stop block. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0023] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation on the utility model.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] A variable diameter transport device for pressure steel pipes in water conservancy engineering tunnels, such as Figure 1-6 As shown, the vehicle includes a frame body 1 and wheels 2. The frame body 1 includes a roof panel 3, a floor panel 4, and multiple side panels 5 surrounding it. At least two parallel through grooves 6 are provided on the front and rear sides of the surface of the roof panel 3. Two brackets 7 are slidably provided on each groove 6 through a displacement adjustment mechanism. The two brackets 7 are symmetrically arranged and move synchronously towards or in opposite directions under the drive of the displacement adjustment structure.

[0026] The displacement adjustment mechanism includes a gear 8 and a slide rod assembly disposed below the slide groove 6. The slide rod assembly includes two slide rods 9 parallel to the direction of the slide groove 6 and symmetrically disposed on both sides of the gear 8. A drive component for driving the gear 8 to rotate is connected to the gear 8. Two racks 10 are centrally symmetrically distributed on both sides of the gear 8, and the racks 10 are meshed with the gear teeth of the gear 8. A guide block 11 is disposed on the back side of the proximal end (the end where the two racks 10 are close to each other) of each rack 10, and a support block 12 is disposed on the distal end (the end where the two racks 10 are far apart). The guide block 11 is slidably disposed on the corresponding adjacent slide rod 9. The support block 12 is slidably disposed on both slide rods 9. A slider 13 is disposed on the top of the support block 12. The slider 13 slides in the slide groove 6 and is fixedly connected to the bottom of the bracket 7.

[0027] The drive assembly drives the gear 8 to rotate, which in turn drives the two racks 10 on both sides to move. The racks 10 drive the support blocks 12 at their ends to slide synchronously in opposite directions along the slide bar group, thereby driving the brackets 7 on the two support blocks 12 to move closer or further away synchronously, adjusting the distance between the two brackets 7 so that they can support pressure steel pipes of various diameters.

[0028] The length of rack 10 is set according to the adjustment distance range between the two brackets. A stop 21 is also provided at the near end of rack 10 to prevent rack 10 from disengaging from gear 8 during movement.

[0029] The support block 12 has two symmetrical through holes for the two slide rods 9 to pass through, and the guide block 11 has a through hole in the middle for the slide rod 9 to pass through. Preferably, a suitable amount of lubricating oil can be applied to the slide rod 9 to reduce friction and make the support block 12 and the guide block 11 slide smoothly.

[0030] Each slide rod 9 of the slide rod assembly is fixedly connected to a connecting seat 14 at both ends, and the top of the connecting seat 14 is fixedly connected to the bottom surface of the roof panel 3.

[0031] The drive assembly includes a drive motor 15 mounted on the chassis 4. The output flange of the drive motor 15 is connected to a reducer 16, and the output of the reducer 16 is keyed to a gear 8. By controlling the rotation direction and speed of the drive motor 15, the movement direction and distance of the bracket 7 are controlled. The drive motor 15 can be a servo motor or a stepper motor, and the reducer 16 is a planetary reducer.

[0032] The bracket 7 has a trapezoidal cross-section, and its support surface is designed as an arc to facilitate the placement and support of the pressure steel pipe. Preferably, a rubber pad 17 is provided on the support surface to protect the steel pipe surface and increase friction, ensuring stability during support. The width of the bracket 7 is greater than the width of the slide 6. The bracket 7 moves on the surface of the roof panel 3 under the action of the slider 13 for distance adjustment.

[0033] On the roof panels 3 on both sides of the chute 6, there are fixing plates 18 parallel to the chute 6. Multiple fixing holes 19 are spaced apart on the fixing plates 18 along their extension direction. Spring pins 20 are installed on the outer walls of both sides of the bracket 7. The spring pins 20 can be inserted into the fixing holes 19 of the corresponding fixing plates 18 to fix the position of the bracket 7, further locking the bracket position and ensuring stability during transportation. When it is necessary to readjust the position of the bracket 7, the spring pins 20 are rotated and lifted, causing the pin of the spring pin 20 to disengage from the fixing hole 19.

[0034] Four wheels 2 are symmetrically arranged within the frame body 1. In one embodiment, lifting lugs are provided on both the front and rear sides of the frame body 1. These lugs can be connected to traction equipment to achieve traction at one or both ends. In another embodiment, the wheels 2 of the frame body 1 are driven by a hydraulic or electric motor system, enabling independent drive control of the frame body 1, making operation more convenient, flexible, and efficient. Alternatively, existing rail flatbed vehicles can be directly used, whose wheel configuration is prior art and not the focus of this application; the specific structure will not be described further here.

[0035] The transport device of this application also includes a transport track that mates with the wheels 2. The transport track is composed of multiple sections of I-beam steel rails spliced ​​together using positioning bolts and pins. Before transporting the tunnel pressure steel pipes, the operators adjust the transport track to a suitable length according to the actual length of the tunnel. Preferably, the bracket 7 and the surface of the transport track are coated with anti-rust paint to adapt to the humid environment of the tunnel. The positioning pins and bolts are made of stainless steel to prevent corrosion and failure.

[0036] According to the required diameter of the pressure steel pipe to be transported, the drive motor 15 drives the gear 8 to rotate. The gear 8 drives the meshing racks 10 on both sides of it to drive the guide blocks 11 and the support blocks 12 at both ends to move linearly along the slide rod 9. The support blocks 12 drive the slider 13 at their top to slide in the slide groove 6, so that the brackets 7 move on the surface of the roof plate 3. This allows the two brackets 7 on the slide groove 6 to move precisely and synchronously. After the two brackets 7 are moved to a position that can adapt to the target pipe diameter, the position of the brackets 7 is fixed by inserting the spring pins 20 on both sides of the brackets into the fixing holes 19 of the fixing plate 18. When installing the steel pipe, the pressure steel pipe is placed between the two opposing brackets 7 using lifting equipment such as a crane. After ensuring that the steel pipe is placed stably, the main body of the frame 1 is transported along the track by the wheels 2 to begin the transportation operation of the pressure steel pipe.

[0037] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A hydraulic engineering tunnel penstock reducing transportation device comprising a vehicle frame body and wheels, characterized in that, The main body of the vehicle frame includes a roof panel, a floor panel, and multiple side panels surrounding it. At least two parallel through grooves are provided on the surface of the roof panel. Two brackets are slidably mounted on each groove through a displacement adjustment mechanism. The two brackets are symmetrically arranged and move synchronously towards or in opposite directions under the drive of the displacement adjustment structure.

2. The variable-diameter transport device for a pressure steel pipe of a tunnel of a hydraulic engineering according to claim 1, characterized in that, The displacement adjustment mechanism includes a gear and a slide rod assembly disposed below the slide groove. The slide rod assembly includes two slide rods parallel to the slide groove direction and symmetrically disposed on both sides of the gear. A drive component for driving its rotation is connected to the gear. Two racks are centrally symmetrically distributed on both sides of the gear, and the racks are meshed with the gear teeth. A guide block is disposed on the back side of the proximal end of each rack, and a support block is disposed on the distal end. The guide block is slidably disposed on the corresponding adjacent slide rod, and the support block is simultaneously slidably disposed on both slide rods. A slider is disposed on the top of the support block, and the slider slides in the slide groove and is fixedly connected to the bottom of the bracket.

3. A variable diameter transport device for pressure steel pipes in water conservancy engineering tunnels according to claim 2, characterized in that, Each slide rod in the slide rod assembly has a connecting seat fixedly connected to both ends, and the top of the connecting seat is fixedly connected to the bottom surface of the roof panel.

4. A variable diameter transport device for pressure steel pipes in water conservancy engineering tunnels according to claim 2, characterized in that, The drive assembly includes a drive motor mounted on the vehicle floor, a reducer connected to the output flange of the drive motor, and a gear connected to the output of the reducer.

5. A variable diameter transport device for pressure steel pipes in water conservancy engineering tunnels according to claim 1, characterized in that, The bracket has a trapezoidal cross-section, and the support surface of the bracket is designed as an arc surface. The width of the bracket is greater than the width of the slide groove.

6. A variable diameter transport device for pressure steel pipes in water conservancy engineering tunnels according to claim 5, characterized in that, A rubber pad is provided on the support surface.

7. A variable diameter transport device for pressure steel pipes in water conservancy engineering tunnels according to claim 1, characterized in that, On the roof panels on both sides of the slide, there are fixing plates parallel to the slide. Multiple fixing holes are spaced apart on the fixing plates along their extension direction. Spring pins are installed on the outer walls on both sides of the bracket. The spring pins can be inserted into the fixing holes of the corresponding fixing plates to fix the position of the bracket.

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