Adjustable positioning device for metal corrugated pipe drilling
By designing an adjustable positioning device and utilizing a combination of a support base and a limiting plate, the problem of swaying during drilling of the metal corrugated pipe was solved, achieving stable positioning and accurate drilling of the corrugated pipe.
Patent Information
- Application Number
- CN202520322252.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-27
AI Technical Summary
Metal bellows is prone to shaking during drilling, which can lead to inaccurate hole opening.
An adjustable positioning device is designed, comprising a support base, a support plate, a locking block, a screw, a limiting part, and a limiting plate. By adjusting the spacing of the support plates and the engagement of the screw and nut, stable positioning of the metal bellows can be achieved.
It enables rapid and stable positioning of metal bellows, ensuring the accuracy of drilling.
Smart Images

Figure CN223833997U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal corrugated pipe processing technology, and in particular to an adjustable positioning device for drilling metal corrugated pipes. Background Technology
[0002] Metal corrugated pipes are pipes with a regular wavy appearance. Commonly used metal corrugated pipes include those made of carbon steel and stainless steel, as well as steel-lined plastic, aluminum, and others. They are mainly used for connecting pipes to each other or connecting pipes to equipment in situations requiring a very small bending radius for non-concentric axial transmission, irregular turns, expansion and contraction, or absorbing thermal deformation of the pipeline, or in situations where it is inconvenient to install with fixed elbows.
[0003] Metal bellows requires connecting holes when in use, but the bellows is prone to shaking, which causes the electric drill to slip and misalign when drilling holes on the surface, resulting in inaccurate drilling. Therefore, there is an urgent need for an adjustable positioning device for drilling metal bellows. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing an adjustable positioning device for drilling metal corrugated pipes, thereby solving the problems mentioned in the background section.
[0005] An adjustable positioning device for drilling metal corrugated pipes includes a support base and a limiting mechanism mounted on the support base. The limiting mechanism includes a support plate, a locking block, a screw, a first limiting part, a second limiting part, a fixing block, a pin, an adjusting screw, and a limiting plate. The support plate consists of two opposing plates that slide in the middle of the support base. The screw is fixed to the end face of the support plate and can limit the degree of freedom of movement of the support plate in one direction via a nut. Two locking blocks are respectively distributed at both ends of the arc surface of the support plate, one of which is slidably disposed in a groove of the support plate. At the opening, another is fixed to the support plate. The first limiting part and the second limiting part are in the same group, and there are two groups in total. They are distributed according to the positions of the two locking blocks. The fixing block is fixed to the end of the first limiting part and can be embedded in the groove of the second limiting part. It is limited by inserting the pin. The adjusting screw is rotatably installed on the fixing block. The bottom of one adjusting screw is rotatably connected to one of the corresponding limiting plates. The bottom of the other adjusting screw has a connecting part that slides along the connecting part with the other corresponding limiting plate.
[0006] By adopting the above technical solution, it is convenient to quickly position the metal bellows and ensure the stable positioning of the metal bellows.
[0007] The slot is positioned directly below the first and second limiting parts, and the locking block fixed on the support plate is also positioned directly below another set of first and second limiting parts.
[0008] By adopting the above technical solution, adjustments can be made to allow the card block to be embedded in the groove on the outer wall of the metal bellows.
[0009] The limiting plate has an arc-shaped structure and a protrusion at the bottom.
[0010] The above technical solution is adopted to facilitate the definition of the metal bellows.
[0011] The center point of the adjusting screw and the center point of the limiting plate are on the same vertical central axis.
[0012] The above technical solution is used to position the metal bellows.
[0013] The thickness of the fixing block is adapted to the thickness of the second slot of the limiting part, and the end of the fixing block does not fit against the inner sidewall of the second slot of the limiting part.
[0014] By adopting the above technical solution, the first limiting part and the second limiting part are connected and limited by a pin.
[0015] The advantages of this adjustable positioning device for drilling metal corrugated pipes are:
[0016] Adjust the distance between the two support plates according to the diameter of the corrugated metal pipe. Then, rotate the nut on the screw to make it fit against the side wall of the support seat. The corrugated metal pipe can then be placed between the two support plates. During placement, the locking block fixed on the support plate first locks into the groove of the corrugated metal pipe. Then, slightly slide the other locking block to adjust its position so that it also locks into the groove on the outer wall of the corrugated metal pipe. Then, rotate the adjusting screw downward to push the limiting plate downward. Because the fixed locking block has the limiting plate directly connected to the adjusting screw, the limiting plate can be pushed so that the protruding block at the bottom of the limiting plate locks into the groove of the corrugated metal pipe. This facilitates quick positioning of the corrugated metal pipe and ensures stable positioning of the corrugated metal pipe. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of the adjustable positioning device for drilling metal corrugated pipes proposed in this utility model.
[0018] In the figure: 1. Support seat; 2. Support plate; 201. Groove; 3. Locking block; 4. Screw; 5. Limiting part one; 6. Limiting part two; 7. Fixing block; 8. Pin; 9. Adjusting screw; 10. Connecting part; 11. Limiting plate. Detailed Implementation
[0019] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.
[0020] Reference Figure 1 An adjustable positioning device for drilling metal corrugated pipes includes a support base 1 and a limiting mechanism mounted on the support base 1. The limiting mechanism includes a support plate 2, a locking block 3, a screw 4, a first limiting part 5, a second limiting part 6, a fixing block 7, a pin 8, an adjusting screw 9, and a limiting plate 11. The support plates 2 consist of two opposing plates that slide in the middle of the support base 1. The screw 4 is fixed to the end face of the support plate 2 and can limit the degree of freedom of movement of the support plate 2 in one direction via a nut. Two locking blocks 3 are distributed at both ends of the arc surface of the support plate 2, one of which is slidably mounted on the support plate 2. At slot 201, another is fixed to the bearing plate 2. Limiting part 1 5 and limiting part 2 6 are in the same group, and there are two groups in total. They are distributed according to the positions of the two locking blocks 3 respectively. The fixing block 7 is fixed to the end of limiting part 1 5 and can be embedded in the groove of limiting part 2 6. It is limited by inserting the pin 8. The adjusting screw 9 is rotatably installed on the fixing block 7. The bottom of one adjusting screw 9 is rotatably connected to the corresponding limiting plate 11. The bottom of the other adjusting screw 9 has a connecting part 10, which is slidably set along the connecting part 10 with the corresponding limiting plate 11.
[0021] According to the diameter of the metal corrugated pipe, adjust the distance between the two support plates 2, and then rotate the nut on the screw 4 to make it fit against the side wall of the support seat 1. The metal corrugated pipe can then be placed between the two support plates 2. When placing it, the locking block 3 fixed on the support plate 2 first locks into the groove of the metal corrugated pipe, and then the other locking block 3 is slightly slid in 201 to adjust its position so that it is also locked into the groove of the outer wall of the metal corrugated pipe.
[0022] The adjusting screw 9 can be rotated downwards to push the limiting plate 11 downwards. Because the fixed locking block 3 has the limiting plate 11 directly connected to the adjusting screw 9, the limiting plate 11 can be pushed so that the protruding block at the bottom of the limiting plate 11 is locked in the groove of the metal bellows.
[0023] Before rotating the other adjusting screw 9, first slightly adjust the position of the limiting plate 11 in the same group on the connecting part 10, and then rotate the adjusting screw 9 so that the protruding block at the bottom of the limiting plate 11 is also stuck in the groove of the metal bellows, thereby completing the positioning of the metal bellows. Then, drilling can be performed using external drilling equipment.
[0024] The slot 201 is positioned directly below the limiting part 5 and the limiting part 6. Similarly, the locking block 3 fixed on the support plate 2 is positioned directly below the other set of limiting parts 5 and the limiting part 6. One of the locking blocks 3 on both sides of the arc surface of the support plate 2 is fixed, and the other is slidably positioned at 201. The locking block 3 can be embedded in the groove on the outer wall of the metal bellows to limit the metal bellows.
[0025] The limiting plate 11 has an arc-shaped structure and a protrusion at the bottom. When the limiting plate 11 moves downward, the protrusion at the bottom can be embedded in the groove on the outer wall of the metal bellows, thereby limiting the metal bellows.
[0026] The center point of the adjusting screw 9 and the center point of the limiting plate 11 are on the same vertical central axis; to ensure stable limiting of the metal bellows.
[0027] The thickness of the fixing block 7 is adapted to the thickness of the groove of the second limiting part 6. The end of the fixing block 7 does not fit against the inner side wall of the groove of the second limiting part 6. Before placing the metal bellows, the first limiting part 5 and the second limiting part 6 can be rotated open. After placing the metal bellows, it can be rotated back so that the fixing block 7 at the end of the first limiting part 5 is embedded in the groove of the second limiting part 6. Then, the first limiting part 5 and the second limiting part 6 are limited by inserting the pin 8.
[0028] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.
Claims
1. An adjustable positioning device for drilling metal corrugated pipes, comprising a support base (1) and a limiting mechanism mounted on the support base (1), characterized in that: The limiting mechanism includes a bearing plate (2), a locking block (3), a screw (4), a first limiting part (5), a second limiting part (6), a fixing block (7), a pin (8), an adjusting screw (9), and a limiting plate (11). The bearing plate (2) consists of two opposing sliding parts in the middle of the bearing seat (1). The screw (4) is fixed to the end face of the bearing plate (2) and can limit the degree of freedom of the bearing plate (2) to move to one side by means of a nut. There are two locking blocks (3), which are respectively distributed at both ends of the arc surface of the bearing plate (2). One of them is slidably set in the groove (201) of the bearing plate (2), and the other is fixed on the bearing plate (2). The first limiting part (5) and the second limiting part (6) are in the same group, and there are two groups in total. They are distributed in the position corresponding to the two locking blocks (3). The fixing block (7) is fixed to the end of the first limiting part (5) and can be embedded in the groove of the second limiting part (6). It is limited by inserting the pin (8). The adjusting screw (9) is rotatably installed on the fixing block (7). The bottom of one adjusting screw (9) is rotatably connected to one of the corresponding limiting plates (11). The bottom of the other adjusting screw (9) has a connecting part (10) that is rotatably connected to the other corresponding limiting plate (11) along the connecting part (10).
2. The adjustable positioning device for drilling metal corrugated pipes according to claim 1, characterized in that: The slot (201) is positioned directly below the first limiting part (5) and the second limiting part (6), and the locking block (3) fixed on the support plate (2) is also positioned directly below the other set of first limiting part (5) and second limiting part (6).
3. The adjustable positioning device for drilling metal corrugated pipes according to claim 2, characterized in that: The limiting plate (11) is an arc-shaped structure with a protrusion at the bottom.
4. The adjustable positioning device for drilling metal corrugated pipes according to claim 3, characterized in that: The center point of the adjusting screw (9) and the center point of the limiting plate (11) are on the same vertical central axis.
5. The adjustable positioning device for drilling metal bellows according to claim 4, characterized in that: The thickness of the fixing block (7) is adapted to the thickness of the groove of the limiting part (6), and the end of the fixing block (7) does not fit against the inner side wall of the groove of the limiting part (6).