A clark tube installation tensioner

By using a drive motor and reducer to drive the gears to rotate, combined with a snap-fit ​​assembly and a fixing belt, the problem of low efficiency in manual operation of kraft tube installation tools is solved, achieving efficient and stable kraft tube installation.

CN224310502UActive Publication Date: 2026-06-02HEBEI TAIWO PLASTIC PIPE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI TAIWO PLASTIC PIPE CO LTD
Filing Date
2025-05-28
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The existing manual tightening tools for installing corrugated pipes are slow, inefficient, and physically demanding, which affects the quality and efficiency of construction.

Method used

It uses a drive motor and reducer to drive the gear rotation, combined with toothed blocks and snap-fit ​​components to achieve precise control of the tension of the kraft tube. It is equipped with fixing straps and anti-slip strips to fix the kraft tube and can adapt to different tube diameters.

Benefits of technology

It improves the accuracy and efficiency of kraft pipe installation, reduces the physical exertion of operators, and ensures the stability and safety of the installation process.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of kraft pipe installation and tensioning technology, and discloses a kraft pipe installation tensioner, including two toothed plates. Each end of the two toothed plates is fixedly connected to a U-shaped plate. A snap-fit ​​component is provided on the inner side of each of the two U-shaped plates. A limit component is provided on the inner side of each of the two U-shaped plates. A moving component is provided on the inner side of each of the two U-shaped plates. Connecting blocks are fixedly connected to the sides of the two toothed plates and the two U-shaped plates. Pipe fixing components are provided on the inner side of multiple connecting blocks. The moving component includes gears. In this utility model, a drive motor and a reducer drive the gears to rotate, thereby driving the toothed plates to move. This transmission method can precisely control the moving distance and speed of the toothed plates, improving the tensioning accuracy of the kraft pipe during installation. Compared to manual operation, motor drive is more labor-saving and efficient, greatly shortening the installation time.
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Description

Technical Field

[0001] This utility model relates to the field of kraft tube installation and tensioning technology, and in particular to a kraft tube installation and tensioning device. Background Technology

[0002] A kraft pipe installation tensioner is a tool or device used to tighten kraft pipes during installation. Its purpose is to ensure that kraft pipes achieve the appropriate tightness during connection, thereby guaranteeing the sealing and stability of the piping system.

[0003] Currently, most installation and tightening tools for kraft tubes are operated manually. Manual tightening tools are small in size and light in weight, allowing operators to operate flexibly at different positions and angles according to the actual situation on site. Especially in places with narrow spaces and where mechanical equipment cannot reach, manual tools can better play their advantages and facilitate precise tightening and adjustment of kraft tubes.

[0004] Although manually operated tensioning tools offer high flexibility, their operation is relatively slow, and the tightening range is limited each time, requiring multiple repetitions to achieve the desired tightening effect. Therefore, overall work efficiency is low, especially in large-scale kraft pipe installation projects, which prolongs the construction period. Furthermore, the need for operators to manually apply tension to tighten the pipes is physically demanding, and operator fatigue is common, particularly during prolonged or high-intensity work, thus affecting work efficiency and installation quality. To address these issues, a kraft pipe installation tensioner is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a carat tube installation tensioner, which aims to improve the problem that the existing technology cannot quickly and effectively perform installation tensioning.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A kraft pipe mounting tensioner includes two toothed plates, each end of which is fixedly connected to a U-shaped plate. A snap-fit ​​assembly is provided on the inner side of each of the two U-shaped plates, a limit assembly is provided on the inner side of each of the two U-shaped plates, a moving assembly is provided on the inner side of each of the two U-shaped plates, and connecting blocks are fixedly connected to the sides of both the two toothed plates and the two U-shaped plates. Pipe fixing assemblies are provided on the inner side of multiple connecting blocks.

[0008] The moving component includes a gear, which is rotatably connected to the inner side of the U-shaped plate and meshing with the outer side of the toothed block plate;

[0009] As a further description of the above technical solution:

[0010] The snap-fit ​​assembly includes a housing, which is fixedly connected to the outside of the U-shaped plate. A connecting ring is rotatably connected to the inside of the housing. Two sliders are fixedly connected to the inside of the connecting ring. A connecting rod is slidably connected to the inside of the connecting ring. Two grooves are formed on the inside of the connecting rod. The two sliders are slidably connected to the inside of the two grooves respectively.

[0011] As a further description of the above technical solution:

[0012] The snap-fit ​​assembly also includes a U-shaped block and a snap-fit ​​block. The U-shaped block is fixedly connected to the end of the connecting rod, and the snap-fit ​​block is rotatably connected to the end of the connecting rod. The snap-fit ​​block snaps into the inner side of the gear. Two limiting blocks are fixedly connected to the top of the U-shaped plate, and the U-shaped block is disposed on the side of the two limiting blocks.

[0013] As a further description of the above technical solution:

[0014] The limiting component includes two sliders, which are fixedly connected to the inner side of the U-shaped plate. The inner sides of both ends of the toothed block plate are provided with sliding grooves, and the two sliders are slidably connected to the inner sides of the two sliding grooves respectively.

[0015] As a further description of the above technical solution:

[0016] The pipe fixing assembly includes a fixing strap, which is disposed on the inner side of the two connecting blocks. A hollow block is disposed on the outer side of the end of the fixing strap. Multiple holes are opened on the inner side of the fixing strap, and fixing bolts are disposed on the inner side of each of the two holes.

[0017] As a further description of the above technical solution:

[0018] Both of the fixing straps are provided with multiple anti-slip strips on their sides, and the multiple anti-slip strips are slidably connected to the inner side of the multiple connecting blocks respectively;

[0019] As a further description of the above technical solution:

[0020] A protective shell is fixedly connected to the side of one of the U-shaped plates, a drive motor is fixedly connected to the inside of the protective shell, a gear is fixedly connected to the output end of the drive motor, a reducer is fixedly connected to the side of the U-shaped plate, and the reducer is located at the output end of the drive motor.

[0021] As a further description of the above technical solution:

[0022] Both of the U-shaped blocks have pull rings fixedly connected to their sides.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this invention, a drive motor and a reducer rotate the gears, which in turn drive the toothed plate to move. This transmission method can precisely control the moving distance and speed of the toothed plate, improving the tightening accuracy of the corrugated tube during installation. Compared to manual operation, motor drive is more labor-saving and efficient, greatly shortening the installation time.

[0025] 2. In this utility model, the gear can be quickly engaged and fixed when needed through the cooperation of components such as the pull ring, U-shaped block, connecting rod, and locking block, thereby locking the position of the gear plate. This engagement method is simple and reliable, can withstand large tensile forces, and prevents the gear plate from moving due to external forces during the tightening of the tube, ensuring the stability and safety of the installation process.

[0026] 3. The pipe fixing assembly, consisting of a fixing strap and fixing bolts, can easily secure the Krah pipe between the connecting blocks. The fixing strap wraps around the Krah pipe and is tightened by bolts, accommodating Krah pipes of different diameters and offering strong versatility. The anti-slip strip design increases the friction between the fixing strap and the Krah pipe, effectively preventing the pipe from slipping during fixing and tightening. Attached Figure Description

[0027] Figure 1 This is a three-dimensional schematic diagram of a carat tube mounting tensioner proposed in this utility model;

[0028] Figure 2 This is a schematic diagram of the structure of a limiting block for a carbide tube mounting tensioner proposed in this utility model;

[0029] Figure 3 This is a schematic diagram of the gear structure of a carbide tube mounting tensioner proposed in this utility model;

[0030] Figure 4 This is a schematic diagram of the structure of the clamping block of a carbide tube mounting tensioner proposed in this utility model;

[0031] Figure 5 This is a schematic diagram of the connecting block of a carbide tube mounting tensioner proposed in this utility model;

[0032] Figure 6 This is a schematic diagram of the anti-slip strip of a carbide tube mounting tensioner proposed in this utility model;

[0033] Figure 7 This is a schematic diagram of the connecting ring of a carbide tube mounting tensioner proposed in this utility model.

[0034] Legend:

[0035] 1. Toothed block plate; 2. Gear; 3. U-shaped plate; 4. Fixing belt; 5. Connecting block; 6. Hole; 7. Hollow block; 8. Anti-slip strip; 9. Pull ring; 10. Connecting rod; 11. U-shaped block; 12. Locking block; 13. Housing; 14. Limiting block; 15. Protective shell; 16. Reducer; 17. Drive motor; 18. Slider one; 19. Slide groove one; 20. Slide groove two; 21. Fixing bolt; 22. Connecting ring; 23. Slider two. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] Reference Figure 1 , Figure 2 and Figure 3 An embodiment of this utility model provides a kraft pipe installation tensioner, comprising two toothed plates 1, each end of which is fixedly connected to a U-shaped plate 3, each U-shaped plate 3 having a snap-fit ​​assembly on its inner side, a limit assembly on its inner side, a moving assembly on its inner side, and connecting blocks 5 fixedly connected to the sides of both toothed plates 1 and U-shaped plates 3, with pipe fixing assemblies on the inner side of multiple connecting blocks 5.

[0038] The moving component includes a gear 2, which is rotatably connected to the inner side of a U-shaped plate 3 and meshes with the outer side of a toothed block plate 1. A protective shell 15 is fixedly connected to the side of one of the U-shaped plates 3, and a drive motor 17 is fixedly connected to the inner side of the protective shell 15. The gear 2 is fixedly connected to the output end of the drive motor 17, and a reducer 16 is fixedly connected to the side of the U-shaped plate 3, located at the output end of the drive motor 17. The drive motor 17 reduces its speed and increases its torque through the reducer 16, thereby driving the gear 2 to rotate. Because the gear 2 meshes with the toothed blocks on the outer side of the toothed block plate 1, the rotation of the gear 2 causes the toothed block plate 1 to move axially, thus adjusting the distance between the two U-shaped plates 3 and achieving the purpose of tightening or loosening the corrugated tube.

[0039] Reference Figure 2 , Figure 3 , Figure 4 and Figure 6The snap-fit ​​assembly includes a housing 13, which is fixedly connected to the outside of the U-shaped plate 3. A connecting ring 22 is rotatably connected to the inside of the housing 13. Two sliders 23 are fixedly connected to the inside of the connecting ring 22. A connecting rod 10 is slidably connected to the inside of the connecting ring 22. Two grooves 20 are formed on the inside of the connecting rod 10, and the two sliders 23 are slidably connected to the inside of the two grooves 20 respectively. The snap-fit ​​assembly also includes a U-shaped block 11 and a locking block 12. The U-shaped block 11 is fixedly connected to the end of the connecting rod 10, and the locking block 12 is rotatably connected to the end of the connecting rod 10. The locking block 12 is snapped into the inside of the gear 2. Two limiting blocks 14 are fixedly connected to the top of the U-shaped plate 3, and the U-shaped block 11 is located on the side of the two limiting blocks 14. The connecting ring 22 can rotate within the housing 13, allowing the operator to fine-tune the position of the U-shaped block 11 by rotating the pull ring 9, so that it can be moved to the side of the limiting blocks 14, and the position of the locking block 12 can be adjusted. Both U-shaped blocks 11 are fixedly connected to pull rings 9 on their sides. When it is necessary to lock the position of the gear plate 1, pulling the pull rings 9 causes the U-shaped blocks 11 to move the connecting rod 10 towards the gear 2. The connecting rod 10 slides within the groove 20 of the connecting ring 22 via the slider 23, ultimately causing the locking block 12 to engage in the tooth groove of the gear 2, preventing the gear from rotating and thus locking the position of the gear plate 1. The limiting block 14 restricts the movement range of the U-shaped blocks 11, ensuring that the locking block 12 accurately engages in the gear 2.

[0040] Reference Figure 2 and Figure 3 The limiting component includes two sliders 18, which are fixedly connected to the inner side of the U-shaped plate 3. Slide grooves 19 are provided on the inner sides of both ends of the toothed block plate 1, and the two sliders 18 are slidably connected to the inner sides of the two slide grooves 19 respectively. The sliders 18 slide within the slide grooves 19 of the toothed block plate 1, limiting the movement trajectory of the toothed block plate 1 and ensuring its smooth movement along a straight line, avoiding deviation or wobbling.

[0041] Reference Figure 1 , Figure 5 and Figure 6 The pipe fixing assembly includes a fixing strap 4, which is located inside two connecting blocks 5. A hollow block 7 is located on the outer side of each end of the fixing strap 4. Multiple holes 6 are formed on the inner side of the fixing strap 4, and fixing bolts 21 are installed inside each of the two holes 6. The fixing strap 4 is wrapped around the Krah pipe, with both ends passing through the space inside the connecting blocks 5. The fixing bolts 21 pass through the hollow blocks 7 and the holes 6 on the fixing strap 4, achieving initial fixing of the Krah pipe. Multiple anti-slip strips 8 are provided on the sides of both fixing straps 4, and these anti-slip strips 8 are slidably connected to the inner sides of the connecting blocks 5. The design of the anti-slip strips 8 increases the friction between the fixing strap 4 and the surface of the Krah pipe, preventing the pipe from slipping during tightening and ensuring installation accuracy.

[0042] Working principle: First, the krat tube is placed between two connecting blocks 5, and the fixing band 4 is wrapped around the krat tube. The hollow block 7 on the outer side of the end of the fixing band 4 can be used to pass through the fixing bolt 21. The fixing band 4 is fixed to the connecting block 5 through the hole 6 and the fixing bolt 21, thus achieving the initial fixation of the krat tube.

[0043] Then, pulling the pull ring 9 outward causes the U-shaped block 11 to move the connecting rod 10 outward under the limitation of the two sliders 23, thereby moving the locking block 12 out from the side of the gear 2. After being pulled to the appropriate position, rotating the pull ring 9 causes the U-shaped block 11 to rotate, so that the U-shaped block 11 rotates to the side of the limiting block 14 to position the locking block 12, allowing the gear 2 to rotate. The drive motor 17 is started, and the gear 2 is driven to rotate through the reducer 16. Since the gear 2 meshes with the toothed block on the outer side of the toothed block plate 1, the rotation of the gear 2 will cause the toothed block plate 1 to move along the inner side of the U-shaped plate 3. At the same time, the slider 18 slides in the groove 19 on the inner side of both ends of the toothed block plate 1, which plays a limiting and guiding role, ensuring that the toothed block plate 1 moves smoothly, thereby changing the distance between the two fixed prism tubes.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 carbide tube mounting tensioner, comprising two toothed plates (1), characterized in that: Both of the toothed plates (1) are fixedly connected to U-shaped plates (3) at their ends. Both of the U-shaped plates (3) are provided with snap-fit ​​components on their inner sides. Both of the U-shaped plates (3) are provided with limit components on their inner sides. Both of the U-shaped plates (3) are provided with moving components on their inner sides. Both of the toothed plates (1) and the sides of the U-shaped plates (3) are fixedly connected to connecting blocks (5). Multiple connecting blocks (5) are provided with pipe fixing components on their inner sides. The moving component includes a gear (2) which is rotatably connected to the inner side of the U-shaped plate (3) and meshing with the outer side of the toothed block plate (1).

2. A carbide tube mounting tensioner according to claim 1, characterized in that: The snap-fit ​​assembly includes a housing (13), which is fixedly connected to the outside of the U-shaped plate (3). A connecting ring (22) is rotatably connected to the inside of the housing (13). Two sliders (23) are fixedly connected to the inside of the connecting ring (22). A connecting rod (10) is slidably connected to the inside of the connecting ring (22). Two grooves (20) are opened on the inside of the connecting rod (10). The two sliders (23) are slidably connected to the inside of the two grooves (20).

3. A carbide tube mounting tensioner according to claim 2, characterized in that: The snap-fit ​​assembly also includes a U-shaped block (11) and a snap-fit ​​block (12). The U-shaped block (11) is fixedly connected to the end of the connecting rod (10), and the snap-fit ​​block (12) is rotatably connected to the end of the connecting rod (10). The snap-fit ​​block (12) snaps into the inner side of the gear (2). Two limiting blocks (14) are fixedly connected to the top of the U-shaped plate (3), and the U-shaped block (11) is disposed on the side of the two limiting blocks (14).

4. A kraft tube mounting tensioner according to claim 1, characterized in that: The limiting component includes two sliders (18), which are fixedly connected to the inner side of the U-shaped plate (3). The toothed block plate (1) has grooves (19) on the inner side of both ends. The two sliders (18) are slidably connected to the inner side of the two grooves (19).

5. A carbide tube mounting tensioner according to claim 1, characterized in that: The pipe fixing assembly includes a fixing band (4), which is located inside the two connecting blocks (5). A hollow block (7) is provided on the outer side of the end of the fixing band (4). Multiple holes (6) are provided on the inner side of the fixing band (4), and fixing bolts (21) are provided on the inner side of both holes (6).

6. A carat tube mounting tensioner according to claim 5, characterized in that: Multiple anti-slip strips (8) are provided on the sides of both fixing straps (4), and the multiple anti-slip strips (8) are slidably connected to the inner side of the multiple connecting blocks (5).

7. A carbide tube mounting tensioner according to claim 1, characterized in that: One of the U-shaped plates (3) is fixedly connected to a protective shell (15) on its side. A drive motor (17) is fixedly connected to the inside of the protective shell (15). The gear (2) is fixedly connected to the output end of the drive motor (17). A reducer (16) is fixedly connected to the side of the U-shaped plate (3). The reducer (16) is located at the output end of the drive motor (17).

8. A carbide tube mounting tensioner according to claim 3, characterized in that: Pull rings (9) are fixedly connected to the sides of both U-shaped blocks (11).