Adjustable steel pipe port fixing structure

CN224347259UActive Publication Date: 2026-06-12CHENZHOU YUANLI MASCH MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHENZHOU YUANLI MASCH MFG CO LTD
Filing Date
2025-07-17
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

The existing steel pipe fixing devices mostly have non-adjustable port fixing structures, which makes it difficult to adapt to the requirements of different engineering projects for steel pipe specifications and layouts. This severely limits their flexibility and versatility in practical applications and greatly reduces construction efficiency.

Method used

An adjustable steel pipe end fixing structure was designed. The adjusting rod drives the sliding cylinder and the hinge rod to expand the clamping plate and fit it tightly against the inner wall of the steel pipe. The scale plate and the indicator needle ensure the accurate position of the clamping plate. The guide plate and the pressure plate are combined to improve the fixing stability.

🎯Benefits of technology

It enables accurate and stable fixing of steel pipes of different specifications, improves the flexibility and versatility of construction, and ensures the stability and fixing effect of steel pipes during use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to mechanical connection fixing technical field especially, and more particularly to adjustable steel pipe port fixed structure. The utility model provides such a kind of adjustable steel pipe port fixed structure, including base, support plate, limit board and limit disc, base top is fixedly connected with support plate, support plate top left and right sides are fixedly connected with the limit board that is diagonal distribution, support plate top left and right sides are fixedly connected with the limit disc that is diagonal distribution, limit disc is uniformly distributed with corresponding limit board left and right symmetry. By rotating adjusting lever and driving sliding cylinder to move, through hinged link, slider and slide rail linkage, realize the expansion of clamping plate and the close adhesion of steel pipe inner wall, solve the most unadjustable of existing steel pipe fixing device port fixed structure, difficult to adapt to the demand of different engineering projects to steel pipe specification, layout, seriously limit its flexibility and versatility in practical application, greatly reduce the construction efficiency problem.
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Description

Technical Field

[0001] This utility model relates to the field of mechanical connection and fixing technology, and in particular to an adjustable steel pipe end fixing structure. Background Technology

[0002] Steel pipe is a hollow long steel material, usually made of steel. It has a hollow structure and is mostly round in shape. In the current technology, steel pipe is widely used in construction, machinery manufacturing and other fields. There are various ways to connect and fix steel pipes, and common fixing methods include welding, flange connection and snap-fit ​​connection.

[0003] Although existing steel pipe fixing devices are widely used in the manufacturing process, they still have some shortcomings and limitations. For example, the fixing structure of the port of existing steel pipe fixing devices is mostly non-adjustable, making it difficult to adapt to the requirements of different engineering projects for steel pipe specifications and layouts. This seriously limits their flexibility and versatility in practical applications and greatly reduces construction efficiency.

[0004] Therefore, an adjustable steel pipe port fixing structure needs to be designed. Utility Model Content

[0005] To overcome the shortcomings of existing steel pipe fixing devices, which are mostly non-adjustable at the port, making it difficult to adapt to the requirements of different engineering projects for steel pipe specifications and layouts, severely limiting their flexibility and versatility in practical applications, and greatly reducing construction efficiency, this utility model provides an adjustable steel pipe port fixing structure.

[0006] The technical solution of this utility model is as follows: an adjustable steel pipe end fixing structure, including a base, a support plate, a limiting plate, a limiting disc, a sliding cylinder, an adjusting rod, a clamping plate, a slider, a slide rail, and a hinge rod. The support plate is fixedly connected to the top of the base. The left and right sides of the top of the support plate are fixedly connected to the limiting plates in a diagonal arrangement. The left and right sides of the top of the support plate are fixedly connected to the limiting discs in a diagonal arrangement. The limiting discs are symmetrically distributed with the corresponding limiting plates. The sliding cylinder is slidably connected inside the limiting discs. The adjusting rod is rotatably connected inside the limiting plates. The adjusting rod is threadedly connected to the corresponding sliding cylinder. Multiple clamping plates distributed along the axial direction are slidably connected to the side of the two limiting discs that are far apart from each other. The slider is fixedly connected to the clamping plate. Multiple slide rails distributed along the axial direction are fixedly connected to the side of the two limiting discs that are close to each other. The slider is slidably connected to the corresponding slide rail. A hinge rod is rotatably connected between the clamping plate and the sliding cylinder.

[0007] In a preferred embodiment of this utility model, a scale plate is also included, and scale plates are fixedly connected to the limiting plates.

[0008] In a preferred embodiment of the present invention, an indicator needle is also included. Indicator needles are fixedly connected to both the front and rear sides of the slider, and the indicator needles are in contact with the scale plate.

[0009] In a preferred embodiment of this utility model, it further includes a guide plate, a pressure plate, and a lead screw. A guide plate is fixedly connected to each slider, a lead screw is rotatably connected to each guide plate, a pressure plate is threaded onto each lead screw, and the pressure plates are slidably connected to the corresponding guide plates.

[0010] In a preferred embodiment of this utility model, the base is made of high-strength cast iron.

[0011] In a preferred embodiment of this utility model, the card plates are all made of hard alloy.

[0012] Beneficial effects: 1. By rotating the adjusting rod to drive the sliding cylinder to move, and through the linkage of the hinge rod, slider and slide rail, the expansion of the clamp plate and its tight fit with the inner wall of the steel pipe are achieved. This solves the problem that most existing steel pipe fixing devices have non-adjustable port fixing structures, which are difficult to adapt to the needs of different engineering projects for steel pipe specifications and layouts, seriously limiting their flexibility and versatility in practical applications and greatly reducing construction efficiency.

[0013] 2. By setting a scale plate and an indicator needle, the operator can intuitively obtain the moving distance and position information of the clamping plate by observing the position of the indicator needle on the scale plate, thereby more accurately controlling the degree of contact between the clamping plate and the steel pipe, and ensuring that steel pipes of different specifications can be accurately and stably fixed.

[0014] 3. This utility model, by setting a guide plate, a pressure plate and a lead screw, rotates the lead screw, which drives the pressure plate to move on the guide plate until the pressure plate presses tightly against the outer surface of the steel pipe, further improving the stability of the steel pipe and effectively preventing the steel pipe from loosening or shifting during use. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the base, support plate, and limiting plate of this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the components of this utility model, including the limiting disc, sliding cylinder, and adjusting rod.

[0018] Figure 4 This is a three-dimensional structural diagram of the card plate, slider, and slide rail components of this utility model.

[0019] Figure 5 This is a three-dimensional structural diagram of the components of this utility model, such as the card plate, hinge rod, and indicator needle.

[0020] Figure 6This is a three-dimensional structural diagram of the guide plate, pressure plate, and lead screw components of this utility model.

[0021] The markings in the attached diagram are: 1_base, 2_support plate, 3_limiting plate, 4_limiting disc, 5_sliding cylinder, 6_adjusting rod, 7_clamping plate, 8_slider, 9_slide rail, 10_hinged rod, 11_scale plate, 12_indicator needle, 13_guide plate, 14_pressure plate, 15_lead screw. Detailed Implementation

[0022] Example: An adjustable steel pipe end fixing structure, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the structure includes a base 1, a support plate 2, a limiting plate 3, a limiting disc 4, a sliding cylinder 5, an adjusting rod 6, a clamping plate 7, a slider 8, a slide rail 9, and a hinge rod 10. The base 1 is made of high-strength cast iron, possessing high compressive strength and wear resistance, capable of withstanding large loads and ensuring the stability of the entire fixed structure during operation. A support plate 2 is welded to the top of the base 1. Limiting plates 3 are welded diagonally on both the left and right sides of the top of the support plate 2. Limiting discs 4 are also welded diagonally on both the left and right sides of the top of the support plate 2. The limiting discs 4 are symmetrically distributed with their corresponding limiting plates 3. Sliding cylinders 5 are slidably connected inside each limiting disc 4. Each limiting plate 3 has an adjusting rod 6 rotatably connected inside, and each adjusting rod 6 is threadedly connected to the corresponding sliding cylinder 5. Each of the two limiting plates 4 has six axially distributed clamping plates 7 slidably connected on the side away from each other. The clamping plates 7 are all made of hard alloy, which has the characteristics of high hardness, good wear resistance and high hot hardness. They can provide sufficient friction when clamping the steel pipe to prevent the steel pipe from sliding, and at the same time, they are not easy to wear. Each clamping plate 7 has a slider 8 welded on it. Each of the two limiting plates 4 has six axially distributed slide rails 9 welded on the side close to each other. Each slider 8 is slidably connected to the corresponding slide rail 9. Each clamping plate 7 and the sliding cylinder 5 is rotatably connected by a hinge rod 10.

[0023] like Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, it also includes a scale plate 11 and an indicator needle 12. The scale plate 11 is welded on the limiting plate 4, and the indicator needle 12 is welded on both the front and rear sides of the slider 8. The indicator needle 12 is in contact with the scale plate 11. The operator can intuitively obtain the moving distance and position information of the clamping plate 7 by observing the position of the indicator needle 11 on the scale plate 12, so as to more accurately control the degree of contact between the clamping plate 7 and the steel pipe, and ensure that steel pipes of different specifications can be accurately and stably fixed.

[0024] like Figure 3, Figure 4 , Figure 5 and Figure 6 As shown, it also includes a guide plate 13, a pressure plate 14, and a lead screw 15. The slider 8 is welded with a guide plate 13, and the guide plate 13 is rotatably connected to the lead screw 15. The lead screw 15 is threadedly connected to the pressure plate 14. The pressure plate 14 is slidably connected to the corresponding guide plate 13. By adjusting the lead screw 15, the pressure plate 14 can be pressed against the steel pipe, further improving the stability of the steel pipe and preventing the steel pipe from loosening or shifting during use.

[0025] In the initial state, the right sliding cylinder 5 is located at the rightmost side of the adjusting rod 6, and the left sliding cylinder 5 is located at the leftmost side of the adjusting rod 6, so that the multiple clamping plates 7 on the same side are in the minimum opening state. When it is necessary to fix the steel pipe, first place the steel pipe on the clamping plates 7 on the same side, and then rotate the adjusting rod 6. The rotation of the adjusting rod 6 drives the sliding cylinder 5 to slide inward on the limiting plate 4. As the sliding cylinder 5 slides, the hinge rod 10 connected to it swings and slides on the slide rail 9 through the slider 8. The multiple clamping plates 7 expand outward along the axis on the limiting plate 4 until the outer side of the clamping plate 7 is tightly attached to the inner wall of the steel pipe. During this process, the indicator needle 12 will move with the slider 8. The operator can intuitively obtain the moving distance and position information of the clamping plate 7 by observing the position of the indicator needle 12 on the scale plate 11, so as to more accurately control the degree of attachment of the clamping plate 7 to the steel pipe, thereby achieving the initial fixation of the steel pipe end.

[0026] When it is necessary to strengthen the fixing effect of the steel pipe, rotate the lead screw 15. The rotation of the lead screw 15 drives the pressure plate 14 to move on the guide plate 13 until the pressure plate 14 presses tightly against the outer surface of the steel pipe, further improving the stability of the steel pipe fixing.

[0027] When it is necessary to remove the steel pipe, rotate the screw 15 in the opposite direction to release the pressure of the pressure plate 14 on the outside of the steel pipe. Then rotate the adjusting rod 6 in the opposite direction. The sliding cylinder 5 slides back to its original position under the action of the adjusting rod 6. The hinge rod 10 drives the clamping plate 7 to move away from the steel pipe, releasing the pressure on the inside of the steel pipe. The steel pipe can then be easily removed, thus completing the use of this device.

Claims

1. An adjustable steel pipe end fixing structure, characterized in that: The system includes a base (1), a support plate (2), a limiting plate (3), a limiting disc (4), a sliding cylinder (5), an adjusting rod (6), a clamping plate (7), a slider (8), a slide rail (9), and a hinge rod (10). The support plate (2) is fixedly connected to the top of the base (1). The limiting plates (3) are fixedly connected to the left and right sides of the top of the support plate (2) in a diagonal arrangement. The limiting discs (4) are fixedly connected to the left and right sides of the top of the support plate (2) in a diagonal arrangement. The limiting discs (4) are symmetrically distributed with the corresponding limiting plates (3). The limiting discs (4) are all slidably connected inside. A sliding cylinder (5) is connected to the limit plate (3), and an adjusting rod (6) is rotatably connected inside each of the limit plates (3). The adjusting rod (6) is threadedly connected to the corresponding sliding cylinder (5). Multiple axially distributed clamping plates (7) are slidably connected to the side of the two limit plates (4) that are far apart from each other. A slider (8) is fixedly connected to each of the clamping plates (7). Multiple axially distributed slide rails (9) are fixedly connected to the side of the two limit plates (4) that are close to each other. The slider (8) is slidably connected to the corresponding slide rail (9). A hinge rod (10) is rotatably connected between the clamping plate (7) and the sliding cylinder (5).

2. The adjustable steel pipe end fixing structure as described in claim 1, characterized in that: It also includes a scale plate (11), and the limit plate (4) is fixedly connected to the scale plate (11).

3. The adjustable steel pipe end fixing structure as described in claim 2, characterized in that: It also includes an indicator needle (12), and the indicator needle (12) is fixedly connected to both the front and rear sides of the slider (8). The indicator needle (12) is in contact with the scale plate (11).

4. The adjustable steel pipe end fixing structure as described in claim 3, characterized in that: It also includes a guide plate (13), a pressure plate (14) and a lead screw (15). The slider (8) is fixedly connected to the guide plate (13), the guide plate (13) is rotatably connected to the lead screw (15), the lead screw (15) is threadedly connected to the pressure plate (14), and the pressure plate (14) is slidably connected to the corresponding guide plate (13).

5. The adjustable steel pipe end fixing structure as described in claim 4, characterized in that: The base (1) is made of high-strength cast iron.

6. The adjustable steel pipe end fixing structure as described in claim 5, characterized in that: All the pallets (7) are made of hard alloy.