Pressure water conveying steel pipe installation construction device

Abstract

The utility model discloses an installation construction device for a pressure water delivery steel pipe. The installation construction device comprises a base; the supporting column is vertically arranged on the base, and one side of the supporting column is provided with a pair of pressing plates arranged in an up-down sliding mode and a sliding driving assembly for driving the pair of pressing plates to slide in the opposite directions; and the pair of air bag cushions are correspondingly laid on the opposite side faces of the pair of pressing plates, hoses are arranged on the air bag cushions in a communicating mode, and an inflation and deflation pump is arranged at one end of each hose in a communicating mode. Through the arrangement of the air bag cushion and the inflation and deflation pump, when the air bag cushion is in contact with the pressure water conveying steel pipe located between the pair of pressing plates, the contact face of the air bag cushion can extend along the contact point in an arc face mode, and therefore the contact area between the pressing plates and the pressure water conveying steel pipe is increased; therefore, the acting force of a pressed surface is reduced while the pressure water conveying steel pipe is clamped, indentations on the pressure water conveying steel pipe are prevented, and deformation of a pipe opening is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of installation construction of water conveyance steel pipes. More specifically, the utility model relates to an installation construction device for a pressurized water conveyance steel pipe. Background Art

[0002] A pressurized water conveyance steel pipe is a pipe used to convey pressurized water flow in water conservancy and hydropower projects, and is applicable to conventional hydropower stations, pumped storage power stations, pump stations, water conveyance projects, etc.

[0003] Multiple pressurized water conveyance steel pipes are butt-jointed and fixed end to end to form a long-distance water conveyance pipe. However, when the pipe orifices of two adjacent pressurized water conveyance steel pipes are butt-jointed and fixed, a clamping device needs to be adopted to clamp the steel pipe, and then welding is carried out. Among them, the clamping device can effectively prevent the pressurized water conveyance steel pipe from shaking and reduce the butt-joint deviation between the two pressurized water conveyance steel pipes. The patent with the publication number CN203356944U discloses a hydraulic steel pipe high-pressure weld joint butt-joint device, which drives a telescopic rod through a hydraulic jack to make a pressing plate abut against the steel pipe, and the pressing plate and the bottom plate clamp and fix the steel pipe. However, under the drive of the hydraulic jack, the pressure directly acts on the steel pipe, which easily causes indentations on the steel pipe, thereby causing deformation of the edge surface of the steel pipe and affecting the butt-joint effect and surface flatness of the steel pipe.

[0004] Therefore, how to design the structure of the installation construction device for a pressurized water conveyance steel pipe to solve the above technical problems is worthy of deep consideration. Summary of the Invention

[0005] An object of the utility model is to solve at least the above problems and provide at least the advantages described hereinafter.

[0006] To achieve these objects and other advantages according to the utility model, there is provided an installation construction device for a pressurized water conveyance steel pipe, including:

[0007] A base;

[0008] A support column, which is erected on the base, and a pair of pressing plates that are slidably arranged up and down and a sliding drive assembly for driving the pair of pressing plates to slide in opposite directions are arranged on one side of the support column;

[0009] A pair of airbag pads, and the pair of airbag pads are correspondingly laid on the opposite side surfaces of the pair of pressing plates. A hose is communicated with the airbag pads, and an air charging and discharging pump is communicated with one end of the hose.

[0010] Preferably, a chute is opened on one side of the support column, a containing cavity communicated with the chute is opened on the support column, and the sliding drive assembly is arranged on the containing cavity. The sliding drive assembly includes:

[0011] A rotary driver, and the output shaft thereof is arranged vertically;

[0012] A ball screw, one end of which is coaxially arranged on the output shaft, and the other end is rotatably arranged on the inner wall of the accommodating cavity through a bearing. The thread directions at both ends of the ball screw are opposite. Ball nuts that are rotationally matched with the ball screw are sleeved on both ends of the ball screw respectively. One side of each ball nut is connected to a pressing plate, and one end of the pressing plate extends out of the sliding groove.

[0013] Preferably, a vertical sliding rail is arranged on the sliding groove, and a slider is slidably arranged on the sliding rail;

[0014] It further includes a pair of connecting rods. The pair of connecting rods are movably inserted through the sliding groove. One side of the pair of connecting rods is fixedly connected to a pair of sliders respectively. One end of the connecting rod is fixedly connected to the ball nut, and the other end is provided with the pressing plate.

[0015] Preferably, the opposite sides of the pair of pressing plates are concave arcs.

[0016] Preferably, a buffer layer is laid on the opposite sides of the pair of pressing plates. An airbag pad is laid on one side of the buffer layer. The limiting protrusion is made of an elastic material.

[0017] Preferably, limiting protrusions are convexly arranged on the opposite sides of the pair of airbag pads. The limiting protrusions are arranged close to the support columns.

[0018] Preferably, it further includes a rotational drive. Its fixed end is arranged on the base. The rotating shaft of the rotational drive is arranged upward and is fixedly connected to the bottom of the support column.

[0019] Preferably, a counterweight block is detachably arranged on the base.

[0020] Preferably, a plurality of braking casters are arranged at the bottom of the base.

[0021] The utility model has at least the following beneficial effects:

[0022] First, through the arrangement of the airbag pad and the air charging and discharging pump in the utility model, when the airbag pad contacts the pressurized water conveyance steel pipe located between the pair of pressing plates, the contact surface of the airbag pad can extend in an arc along the contact point, thereby increasing the contact area between the pressing plate and the pressurized water conveyance steel pipe, so as to clamp the pressurized water conveyance steel pipe while reducing the acting force on the pressure receiving surface, prevent pressure marks from appearing on the pressurized water conveyance steel pipe, and reduce the deformation of the pipe orifice.

[0023] Second, through the arrangement of the ball screw and the ball nut with opposite thread directions at both ends in the utility model, the beneficial effect of driving a pair of pressing plates to slide up and down in opposite directions by one ball screw is realized.

[0024] Thirdly, through the arrangement of the buffer layer, the present utility model absorbs the energy of the airbag pad impacting the pressing plate during inflation, reduces the direct action of the impact force on the pressing plate, and prevents the pressing plate from deforming due to the inflation of the airbag pad.

[0025] Other advantages, objectives and features of the present utility model will be partially reflected by the following description and partially understood by those skilled in the art through the research and practice of the present utility model. Description of the Drawings

[0026] Figure 1 A side cross-sectional view of the installation and construction device according to one technical solution of the present utility model;

[0027] Figure 2 A side view of the installation and construction device according to one technical solution of the present utility model when clamping a pressurized water conveyance steel pipe;

[0028] Figure 3 A side view of the support column according to one technical solution of the present utility model;

[0029] Figure 4 A side view of the butt joint of two adjacent pressurized water conveyance steel pipes according to one technical solution of the present utility model;

[0030] Figure 5 A top view of the installation and construction device according to one technical solution of the present utility model;

[0031] Figure 6 A side structural schematic diagram of the pressing plate according to one technical solution of the present utility model.

[0032] Among them, the marks in each drawing are as follows:

[0033] Base 1, support column 2, pressing plate 3, airbag pad 4, hose 5, air charging and discharging pump 6, rotary driver 7, ball screw 8, sliding drive assembly 9, ball nut 10, connecting rod 11, rotating driver 12, brake caster 13, pressurized water conveyance steel pipe 14, limit protrusion 15, chute 16, buffer layer 17. Detailed Description of the Preferred Embodiments

[0034] The following further describes the present utility model in detail with reference to the drawings, so that those skilled in the art can implement it according to the description in the specification.

[0035] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the reagents and materials are commercially available unless otherwise specified; in the description of the present invention, the orientation or positional relationship indicated by the terms is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] like Figures 1 to 6 As shown, the utility model provides a pressurized water delivery steel pipe installation construction device, comprising:

[0037] Base 1; specifically, the base 1 can be formed by pouring concrete, or can be made of stainless steel or carbon steel, to provide support for the support column 2 described below;

[0038] A support column 2 is erected on the base 1, and a pair of pressing plates 3 that are slidably arranged up and down, and a sliding drive component 9 that drives the pair of pressing plates 3 to slide in opposite directions are provided on one side of the support column 2; specifically, the support column 2 can be directly erected on the base 1 by welding or screwing, and the pressing plate 3 can be slidably connected to one side of the support column 2 by a slide rail and a slider, or can be slidably connected to the support column 2 by a slide groove 16, a slide rail, a slider, and a connecting rod 11. The sliding drive component 9 can be composed of a rotary driver 7, a ball screw 8 with opposite thread rotation directions at both ends, and two ball nuts 10, or can be composed of a pair of linear motors with opposite moving directions at the moving ends. The sliding drive component 9 drives the pair of pressing plates 3 to slide up and down and in opposite directions, so that the upper and lower distance between the pair of pressing plates 3 changes, so as to facilitate the placement of pressurized water delivery steel pipes 14 of different diameters between the pair of pressing plates 3;

[0039] A pair of airbag pads 4 are correspondingly laid on the opposite side surfaces of a pair of pressing plates 3. A hose 5 is communicated with the airbag pad 4, and one end of the hose 5 is communicated with an air charging and discharging pump 6. Specifically, the air charging and discharging pump 6 can be arranged on the side wall of the support column 2 or on the side wall of the following accommodating cavity. The arrangement of the hose 5 helps to adapt to the up and down movement of the pressing plate 3 driving the airbag pad 4. The length of the hose 5 is set to be excessive to prevent the hose 5 from falling off the airbag pad 4 when the pair of pressing plates 3 move up and down. The suction port and the inflation port of the air charging and discharging pump 6 are communicated with the other ends of a pair of hoses 5 through a four-way pipe. Close the valve on the suction port of the air charging and discharging pump 6 and open the valve on the inflation port of the air charging and discharging pump 6. The air charging and discharging pump 6 inflates the airbag pad 4 through the hose 5, correspondingly increasing the pressure inside the airbag pad 4. On the contrary, close the valve on the inflation port of the air charging and discharging pump 6 and open the valve on the suction port of the air charging and discharging pump 6. The air charging and discharging pump 6 reduces the gas volume inside the airbag pad 4 through the hose 5, correspondingly reducing the pressure inside the airbag pad 4. The air charging and discharging pump 6 is used to adjust the pressure inside the airbag pad 4 to facilitate clamping the pressurized water conveyance steel pipe 14. When the airbag pad 4 is inflated and contacts the pressurized water conveyance steel pipe 14 located between the pair of pressing plates 3, the contact surface of the airbag pad 4 can extend in an arc along the contact point, thereby increasing the contact area between the pressing plate 3 and the pressurized water conveyance steel pipe 14, thus playing a role in clamping the pressurized water conveyance steel pipe 14 while reducing the acting force on the pressure-receiving surface and preventing indentations from appearing on the pressurized water conveyance steel pipe 14.

[0040] In the above technical solution, move the base 1 to the pipe orifice of the pressurized water conveyance steel pipe 14 to be butt-jointed. Drive the pair of pressing plates 3 to slide up and down and away from each other through the sliding driving assembly 9 to increase the distance between the pair of pressing plates 3. Then move the base 1 so that the two pressing plates 3 are respectively located at the upper and lower ends of the pressurized water conveyance steel pipe 14. Then the sliding driving assembly 9 drives the pair of pressing plates 3 to slide towards each other so that the pair of pressing plates 3 are respectively arranged with a gap from the upper and lower ends of the pressurized water conveyance steel pipe 14. Close the valve on the suction port of the air charging and discharging pump 6 and open the valve on the inflation port of the air charging and discharging pump 6. The air charging and discharging pump 6 inflates the airbag pad 4 through the four-way pipe and the hose 5. When the airbag pad 4 is inflated and contacts the pressurized water conveyance steel pipe 14 located between the pair of pressing plates 3, the contact surface of the airbag pad 4 can extend in an arc along the contact point, thereby increasing the contact area between the pressing plate 3 and the pressurized water conveyance steel pipe 14, thus playing a role in clamping the pressurized water conveyance steel pipe 14 while reducing the acting force on the pressure-receiving surface and preventing indentations from appearing on the pressurized water conveyance steel pipe 14 and reducing the deformation of the edge surface of the steel pipe.

[0041] In another technical solution, a chute 16 is formed on one side of the support column 2, and a receiving cavity communicating with the chute 16 is formed in the support column 2. A sliding driving assembly 9 is provided on the receiving cavity. The sliding driving assembly 9 includes:

[0042] A rotary driver 7 with its output shaft arranged vertically. Specifically, the rotary driver 7 can be a rotary motor, a rotary cylinder or a rotary oil cylinder. The rotary driver 7 can be fixed on the side wall of the support column 2 at the top or bottom of the receiving cavity by welding or screwing. When the rotary driver 7 is started, the output shaft rotates, driving the following ball screw 8 to rotate;

[0043] A ball screw 8, one end of which is coaxially arranged on the output shaft, and the other end is rotatably arranged on the inner wall of the receiving cavity through a bearing. The threads at both ends of the ball screw 8 have opposite helix directions. Ball nuts 10 that are rotationally matched with the ball screw 8 are respectively sleeved on both ends of the ball screw 8. One side of the ball nut 10 is connected to a pressing plate 3, and one end of the pressing plate 3 extends out of the chute 16. Specifically, the bearing can be arranged on the side wall of the support column 2 at the bottom or top of the receiving cavity corresponding to the rotary driver 7. One end of the ball screw 8 is fixedly penetrated through the bearing, so as to realize the rotational connection between one end of the ball screw 8 and the support column 2. When the output shaft rotates, it drives the ball screw 8 to rotate, thereby driving a pair of ball nuts 10 to move up and down, and further realizing the up and down movement of a pair of pressing plates 3. Among them, the setting of the helix directions of the threads at both ends of the ball screw 8 facilitates the movement directions of the pressing plates 3 on the ball nuts 10 at the upper and lower ends of the ball screw 8 to be opposite when the ball screw 8 rotates driven by the rotary driver 7, so as to adjust the distance between a pair of pressing plates 3 to adapt to pressure water conveying steel pipes 14 with different diameters.

[0044] In the above technical solution, when the rotary driver 7 is started, the output shaft rotates, driving the ball screw 8 to rotate in the receiving cavity. Since the helix directions of the threads at the upper and lower ends of the ball screw 8 are opposite, when the ball screw 8 rotates, a pair of ball nuts 10 corresponding to both ends of the ball screw 8 move up and down, and the movement directions are opposite, so that a pair of pressing plates 3 slide up and down towards or away from each other, thereby adjusting the distance between a pair of pressing plates 3, and realizing the clamping of the pressure water conveying steel pipes 14 with different diameters by the ends of a pair of pressing plates 3 extending out of the chute 16.

[0045] In another technical solution, a vertical slide rail is provided on the chute 16, and a slider is slidably arranged on the slide rail;

[0046] It further includes a pair of connecting rods 11. The pair of connecting rods 11 are movably inserted through the sliding grooves 16. One side of the pair of connecting rods 11 is respectively fixedly connected to a pair of sliders. One end of the connecting rod 11 is fixedly connected to the ball nut 10, and the pressing plate 3 is provided at the other end. Specifically, the connecting rod 11 can be made of stainless steel or carbon steel to have a certain hardness and strength for connecting the ball nut 10 and the pressing plate 3. Through the up and down movement of the ball nut 10, the up and down movement of the pressing plate 3 is driven. The slide rail is provided on the side wall of the support column 2 on one side of the sliding groove 16. The arrangement of the slide rail and the slider helps to enable the connecting rod 11 to slide through the sliding groove 16 and makes the connecting rod 11 slidably connected to the support column 2, increasing the stability of the sliding of the connecting rod 11.

[0047] In another technical solution, the opposite sides of the pair of pressing plates 3 are concave arcs. Specifically, the inner sides of the pressing plates 3 (i.e., the opposite sides of the pair of pressing plates 3) are concave arcs, which helps to further increase the contact area between the pressurized water conveyance steel pipe 14 and the pressing plates 3.

[0048] In another technical solution, a buffer layer 17 is laid on the opposite sides of the pair of pressing plates 3, and the airbag pad 4 is laid on one side of the buffer layer 17. Specifically, the buffer layer 17 can be made of sponge, rubber or latex material and has elasticity, which can absorb the energy of the airbag pad 4 impacting the pressing plate 3 during inflation, reduce the direct action of the impact force on the pressing plate 3, and prevent the pressing plate 3 from deforming due to the inflation of the airbag pad 4.

[0049] In another technical solution, a limiting protrusion 15 protrudes from the opposite sides of the pair of airbag pads 4. The limiting protrusion 15 is arranged close to the support column 2, and the material of the limiting protrusion 15 is an elastic material. Specifically, the limiting protrusion 15 is used to limit the clamping position of the pressurized water conveyance steel pipe 14 with an arc-shaped side. The material of the limiting protrusion 15 is an elastic material such as sponge, rubber or latex to prevent the side wall of the pressurized water conveyance steel pipe 14 with a larger diameter from directly abutting against the side wall of the support column 2, resulting in deformation of the side wall of the pressurized water conveyance steel pipe 14 due to uneven stress.

[0050] In another technical solution, it further includes a rotation driver 12. Its fixed end is provided on the base 1. The rotating shaft of the rotation driver 12 is arranged upward and is fixedly connected to the bottom of the support column 2. Specifically, the rotation driver 12 can be a rotary cylinder or a rotary oil cylinder to drive the support column 2 to rotate. The rotation driver 12 is fixed on the top of the base 1 by welding or screwing. When the rotation driver 12 is started, the rotating shaft of the rotation driver 12 rotates, driving the support column 2 to rotate, so as to rotate the pair of pressing plates 3 and thus realize the adjustment of the clamping direction.

[0051] In another technical solution, a counterweight is detachably provided on the base 1; specifically, the counterweight can be directly placed on the top of the base 1 or can be hung on the base 1 through a hook provided on the base 1. The counterweight is used to increase the stability of the base 1 and reduce the sway generated when a pair of pressing plates 3 slide up and down. When it is necessary to move the base 1, the counterweight can be taken away from the base 1.

[0052] In another technical solution, a plurality of brake casters 13 are provided at the bottom of the base 1; specifically, the provision of the brake casters 13 facilitates the movement of the base 1, can control the fixed state and the freely rotatable state of the base 1, and prevents the base 1 from swaying when the airbag pad 4 clamps the pressure water conveying steel pipe 14, thus affecting the docking effect.

[0053] Although the embodiments of the present invention have been disclosed as above, they are not limited to only the applications listed in the specification and the embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily achieved. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the illustrated examples here.

Claims

1. Installation and construction device for pressurized water conveyance steel pipe, characterized in that, Comprising: A base; Support columns, which are erected on the base, and a pair of pressing plates that are slidably arranged up and down are provided on one side of the support columns, and a sliding drive assembly for driving the pair of pressing plates to slide in opposite directions; A pair of airbag pads, and the pair of airbag pads are correspondingly laid on the opposite side surfaces of the pair of pressing plates. A hose is communicated with the airbag pad, and an air charging and discharging pump is communicated with one end of the hose.

2. The installation and construction device for the pressurized water conveyance steel pipe according to claim 1, wherein, A chute is opened on one side of the support column, and a receiving cavity communicated with the chute is opened on the support column. The sliding drive assembly is arranged on the receiving cavity. The sliding drive assembly includes: A rotary driver, and its output shaft is arranged vertically; A ball screw, one end of which is coaxially arranged on the output shaft, and the other end is rotatably arranged on the inner wall of the receiving cavity through a bearing. The thread directions at both ends of the ball screw are opposite. Ball nuts that are rotationally matched with the ball screw are respectively sleeved at both ends of the ball screw. One side of the ball nut is connected to the pressing plate, and one end of the pressing plate extends out of the chute.

3. The pressurized water delivery steel pipe installation construction device according to claim 2 is characterized in that: A vertical slide rail is arranged on the chute, and a pair of sliders are slidably arranged on the slide rail; It further includes a pair of connecting rods, and the pair of connecting rods are movably inserted through the chute. One sides of the pair of connecting rods are respectively fixedly connected to the pair of sliders. One end of the connecting rod is fixedly connected to the ball nut, and the other end is provided with the pressing plate.

4. The pressure water conveyance steel pipe installation and construction device according to claim 1, characterized in that, The opposite sides of the pair of pressing plates are concave arcs.

5. The installation and construction device for the pressurized water conveyance steel pipe according to claim 1, wherein, A buffer layer is laid on the opposite sides of the pair of pressing plates, and the airbag pad is laid on one side of the buffer layer.

6. The installation and construction device for the pressurized water conveyance steel pipe according to claim 1, characterized in that, Limit protrusions are convexly arranged on the opposite sides of the pair of airbag pads, and the limit protrusions are arranged close to the support column. The material of the limit protrusions is an elastic material.

7. The pressure water conveyance steel pipe installation and construction device according to claim 1, characterized in that, It further includes a rotary driver, and its fixed end is arranged on the base. The rotating shaft of the rotary driver is arranged upward and is fixedly connected to the bottom of the support column.

8. The pressurized water delivery steel pipe installation construction device according to claim 1, characterized in that: A counterweight block is detachably arranged on the base.

9. The installation and construction device for the pressurized water conveyance steel pipe according to claim 1, characterized in that, A plurality of brake casters are arranged at the bottom of the base.

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