A sewer pipe straightening device

By designing a combined clamping structure for the first and second regulators, efficient coaxial straightening of sewage pipes was achieved, solving the problem of low efficiency in manual straightening and improving installation efficiency and labor-saving.

CN224391899UActive Publication Date: 2026-06-23SINOHYDRO BUREAU 5

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SINOHYDRO BUREAU 5
Filing Date
2025-07-01
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The existing technology addresses the problem of low efficiency in manually straightening sewage pipes during installation.

Method used

A sewage pipe straightening device, including a first regulator and a second regulator, is used to achieve coaxial clamping and straightening of the sewage pipe through a combination of clamping parts and connecting rods.

Benefits of technology

It improves the efficiency and labor-saving nature of straightening sewage pipes, and is more efficient and labor-saving than manual calibration.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to pipeline installation technical field, specifically disclose a sewage pipeline straightening device, sewage pipeline is PVC pipeline, including first regulator and second regulator, first regulator and second regulator have tubular retractable first clamping part and second clamping part respectively, are used for clamping sewage pipeline, first clamping part and second clamping part are coaxial after retraction, first regulator and second regulator are connected through first connecting rod and second connecting rod. After first clamping part and second clamping part clamping, the part of sewage pipeline clamped by first clamping part is coaxial with first clamping part, the part of sewage pipeline clamped by second clamping part is coaxial with second clamping part, and then the sewage pipeline is compressed and straightened. Compared with the way that manual sewage pipeline is adjusted to straight line after artificial calibration with laser instrument, the utility model is more efficient and more labor-saving.
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Description

Technical Field

[0001] This utility model relates to the field of pipeline installation technology, specifically to a sewage pipeline straightening device. Background Technology

[0002] Urban sewage pipe networks are a crucial part of urban infrastructure, responsible for collecting domestic sewage and rainwater. Laying out a sewage pipe network naturally requires installing multiple sewage pipes. During installation, considering factors such as water flow velocity and minimizing flow resistance, the pipes should be laid as straight as possible. Sewage pipes are typically made of PVC, which has a certain degree of deformation capacity, especially at longer lengths, making it impossible to guarantee a perfectly straight line. Therefore, during installation, sewage pipes must be straightened and secured on-site; this straightening process requires the use of auxiliary devices.

[0003] Currently, when installing sewage pipes, the process is usually done manually using a laser instrument to calibrate and straighten the pipes, which is inefficient. Utility Model Content

[0004] The purpose of this invention is to provide a sewage pipe straightening device to solve the problem of low efficiency caused by manual straightening of sewage pipes in the prior art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A sewage pipe straightening device, wherein the sewage pipe is a PVC pipe, includes a first regulator and a second regulator, the first regulator and the second regulator respectively having a tubular first clamping part and a second clamping part for clamping the sewage pipe, the first clamping part and the second clamping part being coaxial after clamping the sewage pipe; the first regulator and the second regulator are connected by a first connecting rod and a second connecting rod.

[0007] Furthermore, the first adjuster includes a first fixed base and a first clamping plate, which are connected by bolts. Rotating the bolts adjusts the distance between the first fixed base and the first clamping plate to clamp the sewage pipe. The clamping surfaces of the first fixed base and the first clamping plate together form a tubular first clamping part. The second adjuster includes a second fixed base and a second clamping plate, which are connected by another bolt. The clamping surfaces of the second fixed base and the second clamping plate together form a tubular second clamping part. The first clamping plate and the second clamping plate are connected by the first connecting rod, and the first fixed base and the second fixed base are connected by the second connecting rod.

[0008] Furthermore, both the first clamping plate and the second clamping plate are equipped with downward-facing arc-shaped clamping plates at their bottoms; both the first fixed base and the second fixed base are provided with upward-facing curved grooves at their tops; the arc-shaped clamping plates and the curved grooves are correspondingly arranged, and the arc-shaped clamping plates and the curved grooves are the specific structures for the first fixed base and the first clamping plate to clamp the sewage pipe.

[0009] Furthermore, it also includes a spring, which is sleeved on the outside of the bolt; a spring located in the first adjuster, with its upper end connected to the first clamping plate and its lower end connected to the first fixed base; and a spring located in the second adjuster, with its upper end connected to the second clamping plate and its lower end connected to the second fixed base.

[0010] Furthermore, a first fixing block is fixedly installed on the top of the first clamping plate, and a first through hole is provided at each end of the first fixing block; a second fixing block is fixedly installed on the top of the second clamping plate, and a second through hole is provided at each end of the second fixing block; the diameters of the first connecting rod, the first through hole, and the second through hole are the same; there are two first connecting rods, and the first connecting rods pass through the corresponding first through hole and second through hole respectively; a third through hole is provided at each end of the first fixing base; a fourth through hole is provided at each end of the second fixing base; the diameters of the second connecting rod, the third through hole, and the fourth through hole are the same; there are two second connecting rods, and the second connecting rods pass through the corresponding third through hole and fourth through hole respectively.

[0011] Furthermore, handles are installed on the top of both the first and second fixing blocks.

[0012] Furthermore, it also includes limiting blocks, which are respectively installed at both ends of the first connecting rod and the second connecting rod.

[0013] Furthermore, rollers are respectively installed at both ends of the inner arc-shaped surface of the arc-shaped clamping plate.

[0014] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0015] The first and second regulators respectively clamp a portion of the sewage pipe using a first clamping part and a second clamping part. The first and second clamping parts are coaxial and are fixedly connected by a first connecting rod and a second connecting rod. After clamping, the portion of the sewage pipe clamped by the first clamping part is coaxial with the first clamping part, and the portion of the sewage pipe clamped by the second clamping part is coaxial with the second clamping part, thus straightening the sewage pipe. Compared to manually adjusting the pipe to a straight line using a laser calibrator, this invention is more efficient and less labor-intensive. Attached Figure Description

[0016] Figure 1This is an overall drawing of the present utility model.

[0017] Figure 2 This is a three-dimensional view of the first regulator.

[0018] Figure 3 This is a front view of the first regulator.

[0019] Figure 4 This is a front view of the second regulator.

[0020] Figure 5 This is a structural diagram of the limit block.

[0021] The labels in the diagram are as follows: 1-First adjuster, 101-First clamping plate, 102-First fixed base, 103-First fixed block, 2-Second adjuster, 201-Second clamping plate, 202-Second fixed base, 203-Second fixed block, 3-First connecting rod, 4-Second connecting rod, 5-Bolt, 6-Spring, 7-Arc-shaped clamping plate, 8-Handle, 9-First through hole, 10-Third through hole, 11-Second through hole, 12-Fourth through hole, 13-Roller, 14-Limiting block, 15-Conical groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, so as to provide a better understanding of the concept of the present utility model, the technical problem solved, the technical features constituting the technical solution and the technical effects brought about.

[0023] like Figures 1-4 As shown, a sewage pipe straightening device is disclosed. The sewage pipe is a PVC pipe, and the device includes a first regulator 1 and a second regulator 2. The first regulator and the second regulator each have a tubular first clamping part and a second clamping part, respectively, for clamping the sewage pipe. The first clamping part and the second clamping part are coaxial after clamping the sewage pipe. The first regulator 1 and the second regulator 2 are connected by a first connecting rod 3 and a second connecting rod 4. The connection of the first connecting rod and the second connecting rod ensures that the tubular first clamping part and the second clamping part are coaxial. After clamping, the portion of the sewage pipe clamped by the first clamping part is coaxial with the first clamping part, and the portion of the sewage pipe clamped by the second clamping part is coaxial with the second clamping part, thereby straightening the sewage pipe. Compared to manually adjusting the pipe to a straight line using a laser calibrator, this invention is more efficient and less labor-intensive.

[0024] Furthermore, the first adjuster 1 includes a first fixed base 102 and a first clamping plate 101, which are connected by bolts 5. Rotating the bolts 5 adjusts the distance between the first fixed base 102 and the first clamping plate 101 to clamp the sewage pipe. The clamping surfaces of the first fixed base 102 and the first clamping plate 101 together form a tubular first clamping part. The second adjuster 2 includes a second fixed base 202 and a second clamping plate 201, which are connected by another bolt 5. The clamping surfaces of the second fixed base 202 and the second clamping plate 201 together form a tubular second clamping part. The first clamping plate 101 and the second clamping plate 201 are connected by the first connecting rod 3, and the first fixed base 102 and the second fixed base 202 are connected by the second connecting rod 4.

[0025] On the sewage pipe, a first fixed base 102 and a first clamping plate 101 form a first clamping part, and a second fixed base 202 and a second clamping plate 201 form a second clamping part. The first clamping plate 101 and the second clamping plate 201 are connected by a first connecting rod 3, so that the first clamping plate 101 and the second clamping plate 201 are on the same horizontal plane. The first fixed base 102 and the second fixed base 202 are connected by a second connecting rod 4, so that the first fixed base 102 and the second fixed base 202 are on the same horizontal plane. This makes the first clamping part and the second clamping part form a whole and mutually restrict each other under the connection of the first connecting rod 3 and the second connecting rod 4. The first regulator 1 and the second regulator 2 clamp a part of the sewage pipe respectively. The structure itself ensures that the two sewage pipes after clamping by the first regulator 1 and the second regulator 2 are coaxial. After clamping, it can be guaranteed that the sewage pipe between the two clamped positions is in a straight line, thus completing the straightening of the sewage pipe. The clamping process of the first regulator 1 and the second regulator 2 is completed by bolt 5. The first fixed base 102 and the first clamping plate 101 are connected by bolt 5. Rotating bolt 5 adjusts the distance between the first fixed base 102 and the first clamping plate 101 to clamp the sewage pipe; the clamping of the second regulator 2 is the same.

[0026] Furthermore, both the bottom of the first clamping plate 101 and the second clamping plate 201 are equipped with downward-facing arc-shaped clamping plates 7; the tops of the first fixed base 102 and the second fixed base 202 are provided with upward-facing curved grooves; the arc-shaped clamping plates 7 and the curved grooves are correspondingly arranged, and the arc-shaped clamping plates 7 and the curved grooves are the specific structures for the first fixed base 102 and the first clamping plate 101 to clamp the sewage pipe. The arc-shaped clamping plates 7 and the curved grooves are used to adhere to the pipe wall to complete the clamping, and both the arc-shaped clamping plates 7 and the curved grooves have a certain length, so that when the arc-shaped clamping plates 7 and the curved grooves clamp the sewage pipe, they can force the sewage pipe at the clamping point to be in a fixed direction and cannot shake. The first adjuster 1 and the second adjuster 2 are connected to form a whole by the first connecting rod 3 and the second connecting rod 4, and the positional relationship is set so that the two sewage pipes after the first adjuster 1 and the second adjuster 2 are clamped are coaxial, thus completing the straightening process. The ability to use the arc-shaped clamping plate 7 and curved groove to fit snugly against the pipe wall is a prerequisite for clamping and straightening sewage pipes. In actual work, although the dimensions of sewage pipes vary, several specific sizes are used in practical applications, and the appropriate size is selected for installation based on the site conditions. The arc-shaped clamping plate 7, the first fixed base 102, or the second fixed base 202 in this utility model are also equipped with multiple compatible sizes for backup. Based on the selected sewage pipe size, the corresponding size of the arc-shaped clamping plate 7, the first fixed base 102, or the second fixed base 202 is selected and installed in this utility model.

[0027] Furthermore, it also includes a spring 6, which is sleeved on the outside of the bolt 5; the spring 6 located in the first adjuster 1 is connected at its upper end to the first clamping plate 101 and at its lower end to the first fixed base 102; the spring 6 located in the second adjuster 2 is connected at its upper end to the second clamping plate 201 and at its lower end to the second fixed base 202. The function of the spring 6 is to facilitate reset. When the bolt 5 is rotated, the first clamping plate will rise, thereby releasing the clamp on the sewage pipe. However, during the rotation of the bolt 5, the operator needs to bear the weight of the first clamping plate 101 itself, which is a burden. The spring 6 is provided so that the rebound force after compression can counteract the weight of the first clamping plate 101 itself, making it easier for the operator.

[0028] Furthermore, a first fixing block 103 is fixedly installed on the top of the first clamping plate 101, and a first through hole 9 is provided at both ends of the first fixing block 103. A second fixing block 203 is fixedly installed on the top of the second clamping plate 201, and a second through hole 11 is provided at both ends of the second fixing block 203. The diameters of the first connecting rod 3, the first through hole 9, and the second through hole 11 are the same. There are two first connecting rods 3, and each first connecting rod 3 passes through the corresponding first through hole 9 and second through hole 11. A third through hole 10 is provided at both ends of the first fixing base 102, and a fourth through hole 12 is provided at both ends of the second fixing base 202. The diameters of the second connecting rod 4, the third through hole 10, and the fourth through hole 12 are the same. There are two second connecting rods 4, and each second connecting rod 4 passes through the corresponding third through hole 10 and fourth through hole 12. A first through hole 9 and a second through hole 11 are provided, allowing the first connecting rod 3 to pass through them respectively to connect the first clamping plate 101 and the second clamping plate 201. A third through hole 10 and a fourth through hole 12 are provided, allowing the second connecting rod 4 to pass through them respectively to connect the first fixed base 102 and the second fixed base 202. Sliding the first adjuster 1 and the second adjuster 2 along the first connecting rod 3 and the second connecting rod 4 can change their relative positions, thereby changing the length range for straightening the sewage pipe. The first connecting rod 3, the first through hole 9, and the second through hole 11 have the same diameter, and the second connecting rod 4, the third through hole 10, and the fourth through hole 12 have the same diameter, ensuring that the first connecting rod 3 and the second connecting rod 4 do not change angle during sliding and remain on the same axis, reducing errors caused by sliding.

[0029] Furthermore, a handle 8 is installed on the top of both the first fixing block 103 and the second fixing block 203, which facilitates gripping this utility model.

[0030] like Figure 5 As shown, further, it also includes a limiting block 14, which has a conical groove 15. The limiting block 14 is installed at both ends of the first connecting rod 3 and the second connecting rod 4. The function of the limiting block 14 is to prevent the first adjuster 1 and the second adjuster 2 from sliding out of the first connecting rod 3 and the second connecting rod 4 when adjusting the distance between them. The diameters of the first connecting rod 3 and the second connecting rod may be different, and the limiting block 14 is installed with different diameters to complete the installation of the first connecting rod 3 and the second connecting rod, and can also be disassembled. The limiting block 14 is made of rubber, which also increases friction and maintains the stability of the connection.

[0031] Furthermore, rollers 13 are respectively installed at both ends of the inner arc-shaped surface of the arc-shaped clamping plate 7. With the rollers 13 installed, after straightening a section of the sewage pipe, the bolts 5 are loosened, separating the first clamping plate 101 from the first fixed base 102, and separating the second clamping plate 201 from the second fixed base 202. The arc-shaped clamping plate 7 adheres tightly to the top of the sewage pipe due to gravity, and with the rollers 13 as support, it can be slid to the next section of the sewage pipe, which is more labor-saving for workers.

[0032] It should be noted that this utility model cannot be installed from the side of the sewage pipe; it is inserted from the uninstalled end of the sewage pipe.

[0033] The terms "connection" and "fixing" appearing in this utility model description can refer to fixed connection, processing and forming, welding, or mechanical connection. The specific meaning of the above terms in this utility model should be understood according to the specific circumstances.

[0034] In the description of this utility model, the terms "center", "upper", "lower", "horizontal", "inner", "outer", etc., are used only to indicate the orientation or positional relationship for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A sewage pipe straightening device, wherein the sewage pipe is a PVC pipe, characterized in that: It includes a first regulator (1) and a second regulator (2), the first regulator and the second regulator respectively have a tubular first clamping part and a second clamping part for clamping the sewage pipe, and the first clamping part and the second clamping part are coaxial after clamping the sewage pipe; The first regulator (1) and the second regulator (2) are connected by the first connecting rod (3) and the second connecting rod (4).

2. The sewage pipeline straightening device according to claim 1, characterized in that: The first regulator (1) includes a first fixed base (102) and a first clamping plate (101). The first fixed base (102) and the first clamping plate (101) are connected by bolts (5). Rotating the bolts (5) adjusts the distance between the first fixed base (102) and the first clamping plate (101) to clamp the sewage pipe. The clamping surfaces of the first fixed base (102) and the first clamping plate (101) together form a tubular first clamping part. The second adjuster (2) includes a second fixed base (202) and a second clamping plate (201). The second fixed base (202) and the second clamping plate (201) are connected by another bolt (5). The clamping surfaces of the second fixed base (202) and the second clamping plate (201) together form a tubular second clamping part. The first clamping plate (101) and the second clamping plate (201) are connected by the first connecting rod (3), and the first fixed base (102) and the second fixed base (202) are connected by the second connecting rod (4).

3. The sewage pipeline straightening device according to claim 2, characterized in that: The bottom of the first clamping plate (101) and the second clamping plate (201) are both equipped with an arc-shaped clamping plate (7) with the opening facing downward; the top of the first fixed base (102) and the second fixed base (202) are both provided with a curved groove with the opening facing upward; the arc-shaped clamping plate (7) and the curved groove are correspondingly arranged, and the arc-shaped clamping plate (7) and the curved groove are the specific structures for the first fixed base (102) and the first clamping plate (101) to clamp the sewage pipe.

4. A sewage pipeline straightening device according to claim 2, characterized in that: It also includes a spring (6), which is sleeved on the outside of the bolt (5); The spring (6) located in the first adjuster (1) is connected at its upper end to the first clamping plate (101) and at its lower end to the first fixed base (102); The spring (6) located in the second regulator (2) is connected at its upper end to the second clamping plate (201) and at its lower end to the second fixed base (202).

5. A sewage pipeline straightening device according to claim 2, characterized in that: A first fixing block (103) is fixedly installed on the top of the first clamping plate (101), and a first through hole (9) is provided at both ends of the first fixing block (103). A second fixing block (203) is fixedly installed on the top of the second clamping plate (201), and a second through hole (11) is provided at both ends of the second fixing block (203). The diameters of the first connecting rod (3), the first through hole (9) and the second through hole (11) are the same. There are two first connecting rods (3), and the first connecting rods (3) pass through the corresponding first through hole (9) and second through hole (11) respectively. The first fixed base (102) has a third through hole (10) at both ends, and the second fixed base (202) has a fourth through hole (12) at both ends. The diameters of the second connecting rod (4), the third through hole (10) and the fourth through hole (12) are the same. There are two second connecting rods (4), which pass through the third through hole (10) and the fourth through hole (12) respectively.

6. A sewage pipeline straightening device according to claim 5, characterized in that: The top of both the first fixing block (103) and the second fixing block (203) is equipped with a handle (8).

7. A sewage pipeline straightening device according to claim 5, characterized in that: It also includes a limiting block (14), which is installed at both ends of the first connecting rod (3) and the second connecting rod (4).

8. A sewage pipeline straightening device according to claim 3, characterized in that: Rollers are installed at both ends of the inner arc-shaped surface of the arc-shaped clamping plate.