Pipeline anti-deformation support tool
By installing claws on the inner and outer walls of the pipe opening and combining them with cross or star-shaped support rod structures, the problem of pipe opening deformation during storage or transportation of large-diameter thin-walled steel pipes is solved, achieving effective support and anti-deformation effect for the pipe.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY NO 2 ENG GROUP CO LTD
- Filing Date
- 2025-09-17
- Publication Date
- 2026-07-31
AI Technical Summary
During storage or transportation, the ends of the internal support rods of existing large-diameter thin-walled steel pipes abut against the inner wall of the pipe, but the pipe opening still lacks effective support, making the pipe opening prone to deformation.
The clamps are connected to the inner and outer walls of the pipe opening. The position of the clamps is adjusted and the support force is provided by the first telescopic rod. The second support rod and the connecting sleeve of the first support rod form a cross or star-shaped structure, which works together to limit the pipe opening and prevent deformation.
It effectively prevents pipe openings from deforming during storage or transportation. It has a simple structure, is easy to use, and has good performance.
Smart Images

Figure CN224579993U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline construction, and in particular to a pipeline anti-deformation support fixture. Background Technology
[0002] In urban water supply and drainage projects or water diversion projects, large-diameter thin-walled steel pipes are widely used in municipal water supply, sewage treatment, and inter-regional water diversion projects due to their advantages such as lightweight, convenient construction, and high flow efficiency. However, these pipes have a significant problem of being prone to deformation during storage and transportation.
[0003] In existing technologies, internal support rods are typically installed on the inner wall near the pipe opening of large-diameter thin-walled steel pipes. These internal support rods are generally cross-shaped or star-shaped, with their ends abutting against the inner wall of the pipe to prevent deformation. However, these fixtures simply push the inner wall of the pipe outwards, leaving the pipe opening without effective support, making it prone to deformation. Utility Model Content
[0004] The purpose of this utility model is to provide a pipe deformation prevention support fixture to address the problem that existing large-diameter thin-walled steel pipes are protected from deformation during storage or transportation using internal support rods, but the pipe opening is still not effectively supported and is prone to deformation even though the end of the internal support rods abuts against the inner wall of the pipe.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A pipe deformation prevention support fixture includes at least one first support rod, the first support rod is a first telescopic rod body, and the two ends of the first telescopic rod body are respectively connected to claws. The first telescopic rod body is arranged radially along the pipe, and the claws are engaged with the inner and outer walls of the pipe opening.
[0006] The pipe deformation prevention support fixture described in this utility model uses claws that are simultaneously connected to the inner and outer walls of the pipe opening. This allows for both pushing the inner wall of the pipe opening outwards and pulling the outer wall inwards, thus limiting the pipe opening's position. The first telescopic rod adjusts the position of the claws and provides support force. The first telescopic rod is set radially along the pipe to constrain its diameter, effectively preventing pipe opening deformation during storage or transportation. This support fixture has a simple structure, is easy to use, and has good performance.
[0007] As a preferred technical solution of this utility model, the first support rod includes a first threaded sleeve and a first screw. One end of the first threaded sleeve is threadedly connected to the first screw, and the other end is connected to the chuck. The extended end of the first screw is rotatably connected to the chuck with the axis of the first screw as the rotation center.
[0008] As a further preferred technical solution of this utility model, the extended end of the first screw is rotatably connected to the first connector, and the first connector is connected to the claw.
[0009] As a further preferred technical solution of this utility model, the extended end of the first screw is provided with a protruding brim in the radial direction, and the first connector is provided with a groove that matches the brim, and the brim and the groove are rotatably engaged.
[0010] As a preferred technical solution of this utility model, all the first support rods are connected to form a cross shape or a star shape.
[0011] As a preferred technical solution of this utility model, the pipeline anti-deformation support fixture further includes at least one second support rod. The second support rod is a second telescopic rod body, and support plates are respectively connected to both ends of the second telescopic rod body. The second telescopic rod body is arranged radially along the pipeline, and the support plates abut against the inner wall of the pipeline. The second support rod and the first support rod are connected by a connecting sleeve.
[0012] With this structural design, the second support rod and the first support rod are connected as one unit through the connecting sleeve. The second support rod supports the support plate against the inner wall of the pipe, and together with the first support rod, it limits the pipe opening, thus achieving anti-deformation constraint of the pipe.
[0013] As a further preferred technical solution of this utility model, the second support rod includes a second threaded sleeve and a second screw. One end of the second threaded sleeve is threadedly connected to the second screw, and the other end is connected to the support plate. The extended end of the second screw is rotatably connected to the support plate with the axis of the second screw as the rotation center.
[0014] As a further preferred technical solution of this utility model, the extended end of the second screw is rotatably connected to the second connector, and the second connector is connected to the support plate.
[0015] As a further preferred technical solution of this utility model, the extended end of the second screw is provided with a protruding brim in the radial direction, and the second connector is provided with a groove that matches the brim, and the brim and the groove are rotatably engaged.
[0016] As a further preferred technical solution of this utility model, all the second support rods are connected to form a cross shape or a star shape.
[0017] As a further preferred technical solution of this utility model, the connection sleeve is located at the center of the pipeline.
[0018] As a further preferred technical solution of this utility model, the connecting sleeve includes a clamp and a rotating shaft, with the clamp connected to both ends of the rotating shaft, one clamp being connected to the first support rod and the other clamp being connected to the second support rod.
[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: 1. The pipe anti-deformation support fixture of this utility model, by setting the claws to be connected to the inner and outer walls of the pipe opening, pushes the inner wall of the pipe opening outward and pulls the outer wall of the pipe opening inward, thereby limiting the pipe opening. The first telescopic rod body adjusts the position of the claws and provides support force. The first telescopic rod body is set along the radial direction of the pipe to keep the pipe diameter unchanged, effectively preventing the pipe opening from deforming during storage or transportation. This support fixture has a simple structure, is easy to use, and has good effect. 2. A preferred embodiment of this utility model is a pipe deformation-preventing support fixture, in which the second support rod and the first support rod are connected as one unit by the connecting sleeve. The second support rod supports the support plate against the inner wall of the pipe, and together with the first support rod, limits the pipe opening to achieve pipe deformation-preventing constraint. Attached Figure Description
[0020] Figure 1 Diagram showing the usage status of pipeline anti-deformation support fixtures; Figure 2 for Figure 1 Sectional view of AA; Figure 3 for Figure 2 Enlarged diagram of section C; Figure 4 for Figure 1 BB section view; Figure 5 This is a cross-sectional view of the first screw and the first connector. Figure 6 This is a cross-sectional view of the connecting sleeve.
[0021] Marked in the image: 01-Pipeline; 1-First support rod, 11-First threaded sleeve, 12-First screw, 13-First connector, 14-Claw; 2-Second support rod, 21-Second threaded sleeve, 22-Second screw, 23-Second connector, 24-Support plate; 3-Connecting sleeve, 31-Clamping hoop, 32-Rotating coupling. Detailed Implementation
[0022] The present invention will be further described in detail below with reference to experimental examples and specific embodiments. However, this should not be construed as limiting the scope of the above-mentioned subject matter of the present invention to the following embodiments. All technologies implemented based on the content of the present invention fall within the scope of the present invention.
[0023] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.
[0024] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.
[0025] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.
[0026] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.
[0027] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.
[0028] In related technologies, existing large-diameter thin-walled steel pipes are protected from deformation during storage or transportation using internal support rods. However, since the ends of the internal support rods abut against the inner wall of the pipe, the pipe opening still lacks effective support and remains prone to deformation. Therefore, the technical solution of this application was developed. The following describes the solution in conjunction with... Figures 1 to 6 To elaborate.
[0029] Example 1 like Figures 1 to 6 As shown, the pipe anti-deformation support fixture of this utility model includes a first support rod 1 and a second support rod 2.
[0030] like Figure 1 and Figure 2 As shown, the first support rod 1 adopts a first telescopic rod body. In this embodiment, the first support rod 1 includes a first threaded sleeve 11 and a first screw 12. One end of the first threaded sleeve 11 is threadedly connected to the first screw 12. By turning the first screw 12, the relative position of the first screw 12 and the first threaded sleeve 11 can be adjusted to realize the telescopic movement of the first support rod 1. The threaded connection is usually self-locking. When the first screw 12 is not turned, the length of the first support rod 1 will hardly change, and no additional limiting device is required, which is beneficial for use on the construction site.
[0031] like Figure 1 and Figure 3 As shown, the first telescopic rod is connected to two ends of a claw 14, that is, the opposite ends of the first threaded sleeve 11 and the first screw 12 are respectively connected to the claw 14. The first telescopic rod is arranged radially along the pipe 01, and the claw 14 is engaged with the inner and outer walls of the pipe 01 opening.
[0032] like Figure 3 and Figure 5As shown, the extended end of the first screw 12 is rotatably connected to a first connector 13 about the axis of the first screw 12. The first connector 13 is connected to the claw 14. With this arrangement, when the length of the first support rod 1 is adjusted by turning the first screw 12, the end of the first screw 12 rotates relative to the first connector 13 without affecting the opening position of the claw 14 connected to the first screw 12. That is, the claw 14 will not rotate with the turning of the first screw 12, which facilitates the connection of the claw 14 to the pipe opening of pipe 01. Specifically, as shown... Figure 5 As shown, the extended end of the first screw 12 is provided with a protruding brim in the radial direction, and the first connector 13 is provided with a groove that matches the brim, and the brim is rotatably engaged with the groove.
[0033] Apart from Figure 5 Besides the example connection method, the rotational connection between the first screw 12 and the first connector 13 can also be achieved through a bearing connection. Specifically, the end of the first screw 12 is fixedly connected to the inner ring of the bearing, and the first connector 13 is fixedly connected to the outer ring of the bearing. The advantage of this is that by setting the bearing, the sliding friction of the rotation of the first screw 12 and the first connector 13 is converted into the rolling friction of the bearing balls, reducing the friction force and facilitating the relative rotation of the first screw 12 and the first connector 13.
[0034] In some alternative implementations, such as Figure 3 As shown, the structure of the claw 14 can be a card holder structure with a card slot. The spacing of the card slot is fixed. The pipe opening of pipe 01 extends into the card slot. In order to match the card slot with the pipe wall of pipe 01, an elastic pad can be inserted into the card slot. The gap when the card slot does not match the pipe wall of pipe 01 is eliminated by the compression deformation of the elastic pad. When the gap is large, a thin steel sheet can be inserted into the card slot first, and then the elastic pad can be inserted. The elastic pad can usually be a rubber pad.
[0035] In some alternative embodiments, the jaw 14 can be configured to have an adjustable opening and closing distance, that is, the jaw 14 includes two opposing clamping plates that can be close to or far from each other. It is preferable to attach an elastic pad to the inner side of the clamping plates to avoid damage to the pipe wall of pipe 01 during clamping. The adjustment between the two clamping plates can be achieved by bolts.
[0036] The following is combined Figure 3To illustrate the structure of the clamping jaw 14 in a bolt-adjustable clamping plate configuration, the inner clamping plate of the clamping jaw 14 is L-shaped, and the outer clamping plate is flat. The L-shaped inner clamping plate simultaneously conforms to the inner wall and end wall of the pipe 01 opening. A bolt hole is provided at the top of the L-shaped inner clamping plate, and the bolt passes through the outer clamping plate and connects to the bolt hole. With this structure, the length of the first support rod 1 can be adjusted first to abut the two opposing inner clamping plates against the inner wall and end wall of the pipe 01 opening, and then the outer clamping plate can be connected to the inner clamping plate, facilitating operation.
[0037] like Figure 1 and Figure 4 As shown, the second support rod 2 adopts a second telescopic rod body. In this embodiment, the second support rod 2 includes a second threaded sleeve 21 and a second screw 22. One end of the second threaded sleeve 21 is threadedly connected to the second screw 22. Its purpose and usage are the same as the first support rod 1 mentioned above.
[0038] The two ends of the second telescopic rod are respectively connected to the support plate 24, that is, the opposite ends of the second threaded sleeve 21 and the second screw 22 are respectively connected to the support plate 24. The second telescopic rod is arranged radially along the pipe 01, and the support plate 24 abuts against the inner wall of the pipe 01.
[0039] refer to Figure 5 The extended end of the second screw 22 is rotatably connected to a second connector 23 with the axis of the second screw 22 as the rotation center. The second connector 23 is connected to the support plate 24. Its purpose and implementation method are the same as the rotation implementation method of the first screw 12 and the first connector 13 mentioned above, and will not be repeated here.
[0040] like Figure 1 , Figure 2 and Figure 4 As shown, the second support rod 2 and the first support rod 1 are connected by a connecting sleeve 3, which is located at the center of the pipe 01. In this embodiment, as... Figure 6 As shown, the connecting sleeve 3 includes a clamp 31 and a rotating shaft 32. The two ends of the rotating shaft 32 are respectively connected to the clamp 31. One clamp 31 is connected to the first support rod 1, and the other clamp 31 is connected to the second support rod 2. The clamp 31 is used in a conventional manner, which will not be described in detail here. The rotating shaft 32 can be implemented by referring to the rotation implementation of the first screw 12 and the first connector 13 mentioned above, which will not be described in detail here.
[0041] This utility model discloses a pipe deformation prevention support fixture. By setting the claws 14 to simultaneously connect to the inner and outer walls of the pipe opening 01, it both pushes the inner wall of the pipe opening 01 outwards and pulls the outer wall inwards, thus limiting the position of the pipe opening 01. The first telescopic rod adjusts the position of the claws 14 and provides support force. The first telescopic rod is set radially along the pipe 01 to constrain the diameter of the pipe 01, effectively preventing deformation of the pipe opening 01 during storage or transportation. The connecting sleeve 3 connects the second support rod 2 and the first support rod 1 into one unit. The second support rod 2 supports the support plate 24 against the inner wall of the pipe 01, working in conjunction with the first support rod 1 to limit the position of the pipe opening 01, jointly achieving anti-deformation constraint of the pipe 01. This support fixture has a simple structure, is easy to use, and has good performance.
[0042] Example 2 Not shown, the pipe anti-deformation support fixture of this utility model, based on embodiment 1, includes at least one first support rod 1 and at least one second support rod 2.
[0043] In some alternative implementations, the two first support rods 1 are connected to form a cross shape.
[0044] In some alternative implementations, the four first support rods 1 are connected to form a star shape.
[0045] In some alternative implementations, the two second support rods 2 are connected to form a cross shape.
[0046] In some alternative implementations, the four second support rods 2 are connected to form a star shape.
[0047] In some alternative implementations, the first support rod 1 is a single rod, and the second support rod 2 is cross-shaped or star-shaped.
[0048] In some alternative implementations, the first support rod 1 is cross-shaped, and the second support rod 2 is cross-shaped or star-shaped.
[0049] In some alternative embodiments, the first support rod 1 is in a star shape, and the second support rod 2 is in a cross shape or a star shape.
[0050] The number of the first support rod 1 or the second support rod 2 can be six, eight, etc., and can be combined in the manner described above, which will not be elaborated here.
[0051] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A pipe anti-deformation support tooling comprising at least one first support rod (1), characterized in that, The first support rod (1) adopts a first telescopic rod body, and the two ends of the first telescopic rod body are respectively connected to claws (14). The first telescopic rod body is arranged radially along the pipe (01), and the claws (14) are engaged with the inner and outer walls of the pipe (01) opening.
2. The anti-deformation support tooling for pipes according to claim 1, characterized in that, The first support rod (1) includes a first threaded sleeve (11) and a first screw (12). One end of the first threaded sleeve (11) is threadedly connected to the first screw (12), and the other end is connected to the claw (14). The extended end of the first screw (12) is rotatably connected to the claw (14) with the axis of the first screw (12) as the rotation center.
3. The anti-deformation support tooling for pipes according to claim 2, characterized in that, The extended end of the first screw (12) is rotatably connected to the first connector (13), and the first connector (13) is connected to the claw (14).
4. The anti-deformation support tooling for pipes according to claim 3, characterized in that, The first screw (12) has a protruding brim at its extended end along the radial direction, and the first connector (13) has a groove that matches the brim, and the brim is rotatably engaged with the groove.
5. The anti-deformation support tooling for pipes according to claim 1, characterized in that, All the first support rods (1) are connected to form a cross or a star shape.
6. The anti-deformation support tooling for pipes according to any one of claims 1-5, characterized in that, It also includes at least one second support rod (2), the second support rod (2) adopts a second telescopic rod body, and the two ends of the second telescopic rod body are respectively connected to support plates (24). The second telescopic rod body is arranged radially along the pipe (01), and the support plate (24) abuts against the inner wall of the pipe (01). The second support rod (2) and the first support rod (1) are connected by a connecting sleeve (3).
7. The anti-deformation support tooling for pipes according to claim 6, characterized in that, The second support rod (2) includes a second threaded sleeve (21) and a second screw (22). One end of the second threaded sleeve (21) is threadedly connected to the second screw (22), and the other end is connected to the support plate (24). The extended end of the second screw (22) is rotatably connected to the support plate (24) with the axis of the second screw (22) as the rotation center.
8. The anti-deformation support tooling for pipes according to claim 7, characterized in that, The extended end of the second screw (22) is rotatably connected to the second connector (23), and the second connector (23) is connected to the support plate (24).
9. The anti-deformation support tooling for pipes according to claim 6, characterized in that, All the second support rods (2) are connected to form a cross or a star shape.
10. The anti-deformation support tooling for pipes according to claim 6, characterized in that, The connecting sleeve (3) includes a clamp (31) and a rotating shaft (32). The two ends of the rotating shaft (32) are respectively connected to the clamp (31), one of the clamps (31) is connected to the first support rod (1), and the other clamp (31) is connected to the second support rod (2).