Drainage tool suitable for pipeline maintenance in narrow spaces and its use method

Abstract

The present invention provides a drainage tool suitable for use before pipeline maintenance in narrow spaces and a method for using the tool. The water receiving cover is hollow, with an opening above the barrel and U-shaped mounting grooves on both sides of the opening. The bottom of the water receiving cover is connected to a water outlet pipe, which is radially arranged. The end of the water outlet pipe is sleeved with an extension pipe, which is mounted on a mobile device. The mobile device is equipped with a water receiving box, which is connected to the extension pipe. This tool saves time and effort, as one person can install it on a pipeline to drain water to a fixed location.

Description

Technical Field

[0001] The present invention relates to the field of drainage maintenance, and in particular to a drainage tool suitable for pipeline maintenance in a narrow space and a use method thereof. Background Art

[0002] During construction and equipment maintenance, when firefighting water pipes and other pipelines require repair, the water must first be drained through the drain valve. However, there are areas in the pipeline that cannot be completely drained, so the pipe flange needs to be opened, causing residual water to flow out. If there are "water-sensitive" equipment around the pipeline, the residual water needs to be collected through the flange and drained to a safe area. When encountering pipelines in narrow spaces, drainage becomes extremely difficult.

[0003] When inspecting pipes in confined spaces, residual water may remain after the vent valve has been emptied. First, wrap the flange with plastic wrap, forming it into a cylindrical shape. Then, place the end of the plastic wrap in a water collection device, such as a bucket. After loosening the flange bolts, the remaining water flows through the plastic wrap cylinder into the bucket. Only after the remaining water has drained from the pipe can inspection begin. This method of draining water before inspecting pipes in confined spaces requires significant manpower. One person securely wraps the flange while another holds the end of the plastic wrap cylinder. After draining, the water must be transferred from the bucket, a time-consuming and labor-intensive process. Summary of the Invention

[0004] The main purpose of the present invention is to provide a drainage tool suitable for pipeline maintenance in a narrow space and a method of use thereof, so as to solve the problem that drainage work in pipelines in a narrow space becomes extremely difficult.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a drainage tool suitable for pipeline maintenance in a narrow space, the water receiving cover is a hollow barrel body, an opening is provided on the top of the water receiving cover barrel body, and U-shaped mounting grooves are provided on both sides of the opening. The bottom of the water receiving cover is connected with the water outlet pipe, the water outlet pipe is radially arranged, and the end of the water outlet pipe is sleeved with an extension pipe. The extension pipe is arranged on a mobile device, and a water receiving box is provided on the mobile device. The water receiving box is connected with the extension pipe.

[0006] In the preferred embodiment, the mobile device includes a lifting trolley, a base plate is provided above the lifting plate body of the lifting trolley, support seats are symmetrically provided on both sides of the base plate, a rotating shaft is provided at the end of the extension tube, the rotating shaft is rotatably connected to the support seat, and the water receiving tank is arranged on the base plate.

[0007] In a preferred embodiment, a rotating seat is provided on the supporting seat, and the rotating shaft is rotatably connected to the rotating seat.

[0008] In the preferred embodiment, the support seat is slidably connected to the base plate, a plurality of sliders are provided below the support seat, a slide rail is provided on the base plate, and the slide rail is slidably connected to the sliders.

[0009] In a preferred embodiment, a fixing belt is provided between the two support seats, the fixing belt passes around the tail end of the extension tube and both ends of the fixing belt are connected to the support seats.

[0010] In a preferred embodiment, adjustment blocks are provided at both ends of the fixing belt, waist-shaped holes are provided on the adjustment blocks, and multiple nuts pass through the waist-shaped holes to connect with the support seat.

[0011] In the preferred embodiment, a plurality of anti-rotation keys are provided at the tail end of the water outlet pipe, and a slide groove matching the anti-rotation keys is provided on the extension pipe, and the anti-rotation keys slide inside the slide groove.

[0012] In the preferred embodiment, a limiting ring is provided at the end of the extension tube, which is clamped or threadedly connected to the end of the extension tube, the boss at the end of the limiting ring cooperates with the outer ring of the water outlet pipe, and the anti-rotation key rests on the boss at the end of the limiting ring to limit the position.

[0013] In the preferred embodiment, the tail end of the extension tube is further provided with a downwardly bent hose;

[0014] There are also multiple handles on the bottom plate.

[0015] The method includes:

[0016] S1. Push the lifting cart to the flange to be repaired and adjust the height of the lifting cart so that the water receiving cover reaches the maintenance position;

[0017] S2. Then adjust the outlet pipe and slide it on the extension pipe so that the water receiving cover is below the flange. Press down on the tail of the extension pipe. The tail of the extension pipe starts to rotate along with the rotating shaft. The water receiving cover is upward and covers the flange. Then install the fixing belt. The fixing belt fixes the tail of the extension pipe to ensure the position of the extension pipe.

[0018] S3. Remove the flange, fix the position of the lifting cart, and adjust the support seat to slide on the bottom plate to make fine adjustments forward and backward to facilitate avoidance when removing the flange;

[0019] S4. After draining all the remaining water inside the flange, remove the fixing belt, remove the water collecting cover from the flange, and exit the entire lifting cart;

[0020] S5. Remove the limiting ring at the end of the extension pipe and remove the water outlet pipe from the extension pipe. The water outlet pipe and the water receiving cover can be used separately.

[0021] The present invention provides a pre-drainage tool suitable for pipeline inspection and maintenance in confined spaces, and its use method. The flexible water-collecting hood, which wraps around the flange of the pipe, prevents water from flowing around the flange and flowing into water-sensitive equipment, potentially impacting equipment safety and causing accidents. Collected water flows through the cylindrical section to a designated location, where the outlet pipe can be connected to a water pipe, enabling long-distance drainage. The flexible material of the hood is deformable. This tool saves time and effort; one person can install it on the pipe to drain water to a fixed location. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below with reference to the accompanying drawings and examples:

[0023] Figure 1 This is a structural diagram of the water receiving cover of the present invention;

[0024] Figure 2 This is a diagram of the overall appearance of the present invention;

[0025] Figure 3 This is a structural diagram of the water receiving cover and the bottom plate of the present invention;

[0026] Figure 4 This is a cross-sectional structural diagram of the installation of the water outlet pipe and the extension pipe of the present invention;

[0027] Figure 5 It is a structural diagram of the water outlet pipe and the extension pipe installation of the present invention.

[0028] In the figure: water outlet pipe 1; anti-rotation key 101; water receiving cover 2; mounting groove 201; flange 3; extension pipe 4; rotating shaft 401; limiting ring 402; water outlet hose 403; slide 404; rotating seat 5; water receiving box 6; bottom plate 7; lifting trolley 8; lifting handle 801; fixing belt 9; adjusting block 10; waist-shaped hole 1001; support seat 11; handle 12; slider 13; slide rail 14. DETAILED DESCRIPTION

[0029] Example 1

[0030] like Figures 1 to 5The figure shows a pre-drainage tool suitable for pipeline inspection in confined spaces. The water collection hood 2 is hollow and has an opening at the top. U-shaped mounting slots 201 are located on either side of the opening. The bottom of the water collection hood 2 is connected to the outlet pipe 1, which is radially arranged and sleeved onto an extension pipe 4. The extension pipe 4 is mounted on a mobile device equipped with a water collection box 6, which is connected to the extension pipe 4. The water collection hood 2 is made of a flexible material wrapping section around the pipe flange, preventing water from flowing around and entering water-sensitive equipment, potentially impacting equipment safety and causing accidents. The collected water flows through the cylindrical section to a designated location, where the outlet pipe 1 can be connected to a water pipe, enabling long-distance drainage. The flexible material of the wrapping section of the water collection hood 2 is flexible. This tool is time-saving and labor-saving; one person can install it on a pipe to drain water to a fixed location.

[0031] In the preferred embodiment, the mobile device includes a lifting trolley 8. A base plate 7 is provided above the lifting plate body of the lifting trolley 8. Support bases 11 are symmetrically provided on both sides of the base plate 7. A rotating shaft 401 is provided at the end of the extension tube 4. The rotating shaft 401 is rotatably connected to the support base 11. The water receiving tank 6 is disposed on the base plate 7. The lifting trolley 8 facilitates the movement of the entire device. The lifting trolley 8 adopts a cross-scissor lifting trolley, and the lifting handle 801 is used to control the raising and lowering of the lifting trolley 8.

[0032] In the preferred embodiment, a rotating base 5 is mounted on the support base 11, and a rotating shaft 401 is rotatably connected to the rotating base 5. The support base 11 is slidably connected to the base plate 7. A plurality of sliders 13 are also disposed below the support base 11. Slide rails 14 are mounted on the base plate 7, and the slide rails 14 are slidably connected to the sliders 13. The support base 11 can adjust the position of the extension tube 4, facilitating fine-tuning after installation.

[0033] In the preferred embodiment, a fixing belt 9 is provided between the two support seats 11. The fixing belt 9 passes around the rear end of the extension tube 4, and both ends of the fixing belt 9 are connected to the support seats 11. The outlet pipe 1 is then adjusted and slid on the extension tube 4, so that the water receiving cover 2 is positioned below the flange 3. The rear end of the extension tube 4 is pressed downward, and the rear end of the extension tube 4 begins to rotate along the rotation axis 401. The water receiving cover 2 is then raised and covered on the flange 3. The fixing belt 9 is then installed to secure the rear end of the extension tube 4, ensuring the position of the extension tube 4.

[0034] In the preferred embodiment, adjustment blocks 10 are provided at both ends of the fixing strap 9. Each adjustment block 10 has a waist-shaped hole 1001, through which multiple nuts pass to connect to the support base 11. The waist-shaped holes 1001 serve to adjust the cleaning angle of the extension tube 4 and control the upward and downward tilt of the extension tube 4.

[0035] In the preferred embodiment, the tail of the water outlet pipe 1 is provided with a plurality of anti-rotation keys 101, and the extension pipe 4 is provided with a slide groove 404 that matches the anti-rotation key 101, and the anti-rotation key 101 slides inside the slide groove 404. The anti-rotation key 101 prevents the water outlet pipe 1 from rotating when in use.

[0036] In the preferred embodiment, a stop ring 402 is provided at the end of the extension tube 4. The stop ring 402 is snap-fitted or threadedly connected to the end of the extension tube 4. The boss at the end of the stop ring 402 engages with the outer ring of the outlet pipe 1, and the anti-rotation key 101 abuts against the boss at the end of the stop ring 402 to limit the position. The stop ring 402 prevents the outlet pipe 1 from falling off the extension tube 4.

[0037] In the preferred embodiment, the tail end of the extension tube 4 is also provided with a downwardly bent hose, and the bottom plate 7 is also provided with a plurality of handles 12. The downwardly bent hose is convenient for docking the drain pipe and also doubles the liquid into the water receiving box 6.

[0038] Example 2

[0039] Further illustrate with reference to Example 1, Figure 1-5 In the structure shown, S1, push the lifting trolley 8 to the position of the flange 3 to be repaired, and adjust the height of the lifting trolley 8 so that the height of the water receiving cover 2 reaches the maintenance position.

[0040] Then adjust the water outlet pipe 1, and slide the water outlet pipe 1 on the extension pipe 4 so that the water receiving cover 2 is located below the flange 3. Press the tail of the extension pipe 4 downward, and the tail of the extension pipe 4 begins to rotate along the rotating shaft 401. The water receiving cover 2 is upwardly covered on the flange 3, and then install the fixing belt 9. The fixing belt 9 fixes the tail of the extension pipe 4 to ensure the position of the extension pipe 4.

[0041] The flange 3 is disassembled, the position of the lifting trolley 8 is fixed, and the support seat 11 is adjusted to slide on the bottom plate 7 to perform fine adjustment forward and backward, so as to facilitate avoidance when the flange 3 is disassembled.

[0042] After the remaining water inside the flange 3 is drained, the fixing belt 9 is disassembled, the water collecting cover 2 is removed from the flange 3, and the entire lifting trolley 8 is withdrawn.

[0043] The limiting ring 402 at the end of the extension pipe 4 is disassembled, and the water outlet pipe 1 is removed from the extension pipe 4. The water outlet pipe 1 and the water receiving cover 2 can be used separately.

[0044] The above embodiments are merely preferred technical solutions of the present invention and should not be construed as limiting the present invention. The scope of protection of the present invention shall be the technical solutions set forth in the claims, including equivalent alternatives to the technical features of the technical solutions set forth in the claims. In other words, equivalent alternatives and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A method for using a drainage tool before pipeline maintenance in a narrow space, characterized by: The water receiving cover (2) is a hollow barrel structure. An opening is provided above the barrel of the water receiving cover (2). U-shaped mounting grooves (201) are provided on both sides of the opening. The bottom of the water receiving cover (2) is connected to the water outlet pipe (1). The water outlet pipe (1) is radially arranged. The end of the water outlet pipe (1) is sleeved with the extension pipe (4). The extension pipe (4) is arranged on the mobile device. The mobile device is provided with a water receiving box (6). The water receiving box (6) is connected to the extension pipe (4). The mobile device includes a lifting trolley (8), a bottom plate (7) is provided above the lifting plate body of the lifting trolley (8), support seats (11) are symmetrically provided on both sides of the bottom plate (7), a rotating shaft (401) is provided at the end of the extension tube (4), the rotating shaft (401) is rotatably connected to the support seat (11), and the water receiving box (6) is provided on the bottom plate (7); A fixing belt (9) is provided between the two support seats (11), the fixing belt (9) passes around the tail end of the extension tube (4), and both ends of the fixing belt (9) are connected to the support seats (11); Adjustment blocks (10) are provided at both ends of the fixing belt (9), and waist-shaped holes (1001) are provided on the adjustment blocks (10), and a plurality of nuts pass through the waist-shaped holes (1001) and are connected to the support base (11); The method includes: S1. Push the lifting trolley (8) to the position of the flange (3) to be repaired, and adjust the height of the lifting trolley (8) so that the height of the water receiving cover (2) reaches the maintenance position; S2. Then adjust the outlet pipe (1), slide the outlet pipe (1) on the extension pipe (4), make the water receiving cover (2) be located below the flange (3), press the tail of the extension pipe (4) downward, the tail of the extension pipe (4) starts to rotate along with the rotating shaft (401), the water receiving cover (2) is upwardly covered on the flange (3), and then install the fixing belt (9), the fixing belt (9) fixes the tail of the extension pipe (4), and ensures the position of the extension pipe (4); S3, dismantle the flange (3), fix the position of the lifting trolley (8), and adjust the support seat (11) to slide on the bottom plate (7) to make fine adjustments forward and backward to facilitate avoidance when dismantling the flange (3); S4. After the remaining water inside the flange (3) is drained, the fixing belt (9) is removed, the water collecting cover (2) is removed from the flange (3), and the entire lifting cart (8) is withdrawn; S5. Remove the limiting ring (402) at the end of the extension tube (4), remove the water outlet pipe (1) from the extension tube (4), and the water outlet pipe (1) and the water receiving cover (2) can be used separately.

2. According to claim 1, a method for using a drainage tool before pipeline maintenance in a narrow space, characterized by: A rotating seat (5) is provided on the supporting seat (11), and a rotating shaft (401) is rotatably connected to the rotating seat (5).

3. The method for using a drainage tool before pipeline maintenance in a narrow space according to claim 1 is characterized by: The support seat (11) is slidably connected to the base plate (7), a plurality of sliders (13) are provided below the support seat (11), a slide rail (14) is provided on the base plate (7), and the slide rail (14) is slidably connected to the sliders (13).

4. The method for using a drainage tool before pipeline maintenance in a narrow space according to claim 1 is characterized by: The tail of the water outlet pipe (1) is provided with a plurality of anti-rotation keys (101), and the extension pipe (4) is provided with a slide groove (404) that matches the anti-rotation keys (101), and the anti-rotation keys (101) slide inside the slide groove (404).

5. The method for using a drainage tool before pipeline maintenance in a narrow space according to claim 4 is characterized by: A limiting ring (402) is provided at the end of the extension tube (4), the limiting ring (402) is snap-fitted or threadedly connected to the end of the extension tube (4), the end boss of the limiting ring (402) cooperates with the outer ring of the outlet pipe (1), and the anti-rotation key (101) abuts against the end boss of the limiting ring (402) to limit the position.

6. The method for using a drainage tool before pipeline maintenance in a narrow space according to claim 1 is characterized by: The tail end of the extension tube (4) is also provided with a downwardly bent hose; A plurality of handles (12) are also provided on the bottom plate (7).

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