Flange bolt assisted positioning device

Abstract

This utility model relates to the field of equipment installation auxiliary tools, and in particular to a flange bolt auxiliary positioning device, including a straightening plate with an inner arc surface. At least two straightening plates are joined together to form a circular straightening space. A plurality of limiting grooves are arranged at intervals on the inner arc surface, and these limiting grooves communicate with the circular straightening space. The limiting grooves are adapted to the position and size of the bolts to be straightened. A connecting portion is provided between adjacent straightening plates, allowing them to be detachably connected. This flange bolt auxiliary positioning device of the present utility model uses the limiting grooves on the inner arc surface of the straightening plate to hold the bolts, enabling the simultaneous straightening of multiple bolts, improving equipment installation efficiency, ensuring installation quality, and reducing installation risks. Furthermore, this auxiliary positioning device has a simple structure, low manufacturing cost, and wide application value.

Description

Technical Field

[0001] This utility model relates to the field of equipment installation auxiliary tools, and in particular to a flange bolt auxiliary positioning device. Background Technology

[0002] Flange connections are a common connection structure widely used in industrial equipment such as pipelines and pressure vessels. They achieve sealing by evenly tightening two flanges with multiple sets of bolts. For the assembly process of flange connections in large equipment, such as the assembly of an existing gas extraction tree, bolts need to be pre-installed in the connection holes of the lower flange. Then, a lifting mechanism is used to lift the upper structure, aligning the holes of the upper and lower flanges. During the descent of the upper structure, the bolts on the lower flange need to be simultaneously inserted into the connection holes of the upper flange of the upper structure. The bolts are then tightened after the upper structure is in place.

[0003] However, the large number of pre-installed bolts on the lower flange makes it difficult to provide overall support and fixation. When the bolts on the lower flange are not properly aligned, they cannot be quickly inserted into the flange holes of the upper structure, resulting in low connection and installation efficiency. This increases the working time of workers under the upper structure while it is being lifted, posing a significant safety hazard. Furthermore, when the upper structure is installed with the bolts not properly aligned, the upper structure is also prone to impact damage to the bolts, reducing their strength and leading to hidden defects in subsequent use, posing a great risk to its use. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies, such as the inability of existing large equipment flange connections to achieve overall bolt alignment, which leads to safety hazards and usage risks, and to provide a flange bolt auxiliary positioning device.

[0005] This utility model provides a flange bolt auxiliary positioning device, comprising:

[0006] A straightening plate, wherein the straightening plate has an inner arc surface, and at least two straightening plates are joined together to form a circular straightening space;

[0007] A limiting groove, a plurality of the limiting grooves are arranged at intervals on the inner arc surface, the limiting grooves are connected to the circular straightening space, and the limiting grooves are adapted to the position and size of the bolt to be straightened;

[0008] A docking section is provided between adjacent straightening plates, and the adjacent straightening plates are detachably connected through the docking section.

[0009] This utility model discloses a flange bolt auxiliary positioning device, which uses a limiting groove set in the inner arc surface of the straightening plate to hold the bolts, thereby achieving simultaneous straightening of multiple bolts, improving equipment installation efficiency, ensuring installation quality, and reducing installation risks. At the same time, this auxiliary positioning device has a simple structure and low manufacturing cost, and has wide application and promotion value.

[0010] Preferably, the mating part includes a hinge and a locking member, and two adjacent straightening plates are connected by the hinge or the locking member. This allows the adjacent straightening plates to be detachably connected, facilitating disassembly and removal after bolt straightening installation.

[0011] Preferably, the straightening plate includes an arc-shaped ring plate, with one end of two arc-shaped ring plates connected by the hinge and the other end connected by the locking member. This forms a circular auxiliary positioning device that matches the shape of the flange, improving the accuracy of bolt straightening, enabling simultaneous straightening of flange bolts, and facilitating easy removal after the upper and lower flanges are joined.

[0012] Preferably, a gap of not less than 5mm is formed between two adjacent straightening plates. This provides each straightening plate with a certain degree of positional adjustment redundancy, allowing for adjustments to the relative positions of the plates based on the number and location of bolts.

[0013] Preferably, the mating portion is provided with a pull ring to facilitate the removal of the auxiliary positioning device between the upper and lower flanges.

[0014] Preferably, the inner arc surface is provided with a notch or groove. This further facilitates the removal of the straightening plate from between the upper and lower flanges through the notch or groove.

[0015] Preferably, at least two of the notches are symmetrically arranged in the circular straightening space.

[0016] Preferably, the limiting groove is a semi-circular groove, and the limiting groove and the bolt to be straightened meet a fit tolerance of ±0.1mm. This ensures that the straightening plate and the bolt are precisely aligned and that the bolt is accurately centered.

[0017] Preferably, the straightening plate comprises a rubber plate, and the thickness of the straightening plate is not less than 10mm. This ensures that the straightening plate has sufficient strength to provide a stable straightening force to the bolts through the limiting groove.

[0018] Preferably, the straightening plate comprises a magnetic rubber structural plate. This stabilizes the relative position of the straightening plate and the flange, preventing mutual displacement during use and improving equipment installation efficiency.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] 1. This utility model provides a flange bolt auxiliary positioning device, which uses a limiting groove set in the inner arc surface of the straightening plate to hold the bolts, thereby achieving simultaneous straightening of multiple bolts, which can improve equipment installation efficiency, ensure installation quality, and reduce installation risks;

[0021] 2. This utility model provides a flange bolt auxiliary positioning device, which has a simple structure, low manufacturing cost, and has wide application value. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a flange bolt auxiliary positioning device according to Embodiment 1. Figure 1 .

[0023] Figure 2 This is a schematic diagram of the structure of a flange bolt auxiliary positioning device according to Embodiment 1. Figure 2 .

[0024] Figure 3 This is a schematic diagram of the structure of a flange bolt auxiliary positioning device according to Embodiment 1. Figure 3 .

[0025] Figure 4 This is a schematic diagram of the structure of a flange bolt auxiliary positioning device according to Embodiment 1. Figure 4 .

[0026] Marked in the image:

[0027] 1-Straightening plate, 11-Inner arc surface, 12-Limiting groove, 2-Connecting part, 21-Hinge, 22-Locking fastener, 3-Pull ring, 4-Notch groove, 5-Circular straightening space. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to specific embodiments. However, it 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] Example 1

[0035] like Figures 1-4 As shown, a flange bolt auxiliary positioning device includes a straightening plate 1, the straightening plate 1 having an inner arc surface 11, at least two straightening plates 1 being joined together to form a circular straightening space 5, the inner arc surface 11 having a plurality of limiting grooves 12 spaced apart, the limiting grooves 12 being adapted to the position and size of the bolt to be straightened, a connecting part 2 being provided between adjacent straightening plates 1, and a plurality of straightening plates 1 being detachably connected through the connecting part 2.

[0036] The straightening plate 1 is a flat structural component that makes up the main body of the auxiliary positioning device. Multiple straightening plates 1 are connected to form a circular straightening space 5.

[0037] In one or more embodiments, the straightening plate 1 can be a rubber plate with a thickness of not less than 10 mm, so that the straightening plate 1 has sufficient strength to provide a stable straightening force to the bolt through the limiting groove 12.

[0038] In an optional embodiment, the thickness of the straightening plate 1 can be 10-15mm.

[0039] In optional implementations, such as Figures 1-2 As shown, the straightening plate 1 can be an arc-shaped ring plate, such as... Figure 3 As shown, the straightening plate 1 can also be a rectangular plate. Each straightening plate 1 is provided with an inner arc surface 11. Multiple straightening plates 1 can be spliced ​​together to form a circular straightening space 5.

[0040] In optional implementations, such as Figures 3-4 As shown, the number of straightening plates 1 can be adjusted according to the actual situation. It can be two or three, preferably two. Two straightening plates 1 can simultaneously straighten the flange bolts and can also be easily removed after the upper and lower flanges are connected.

[0041] In an optional embodiment, the limiting groove 12 can be a partial arc-shaped groove, preferably a semi-circular groove. The limiting groove 12 can stably hold the bolt, so that the bolt and the axis of the limiting groove 12 are collinear, thereby straightening the bolt.

[0042] In an optional embodiment, the projection of the limiting groove 12 on the bolt circumference can be adjusted according to the actual situation. It is preferable to cover half of the bolt circumference, but it can also cover more or slightly less, so that the limiting groove 12 can be tightly held with the bolt and realize the stable alignment of the bolt.

[0043] In an optional embodiment, the limiting groove 12 can meet the fitting tolerance of ±0.1mm with the bolt to be straightened. This ensures that the straightening plate 1 and the bolt are precisely aligned and that the bolt is accurately centered.

[0044] In an optional embodiment, after the limiting groove 12 is tightly fitted with the bolt, it can ensure that the bolt axis deviation is less than 0.5mm, thereby achieving accurate centering alignment of the bolt.

[0045] In an optional embodiment, the straightening plate 1 can be a magnetic rubber structural plate, which can generate a certain attraction with the metal flange, so that the relative position of the straightening plate 1 and the flange is stable and they are not easy to shift during use, thereby improving the efficiency and accuracy of equipment installation.

[0046] The docking part 2 is a structural component set between adjacent straightening plates 1, used to realize the detachable connection of adjacent straightening plates 1.

[0047] In one or more embodiments, the mating part 2 includes a hinge 21 and a locking member 22, and two adjacent straightening plates 1 can be connected by the hinge 21 or the locking member 22. This allows the two straightening plates 1 to be detachably connected, facilitating removal after bolt straightening installation.

[0048] In an optional embodiment, the hinge 21 may be a combination of a pivot and a sleeve disposed at the end of the straightening plate 1, and the locking fastener 22 may be a snap-fit ​​structure disposed at the end of the straightening plate 1.

[0049] In an optional embodiment, after two adjacent straightening plates 1 are connected by a butt joint 2, a gap space with a width of not less than 5mm can be formed. This gives each straightening plate 1 a certain degree of positional adjustment redundancy, which can adapt to adjustments in the relative positions of bolts based on their number and location.

[0050] In an optional embodiment, the mating part 2 may be provided with a pull ring 3 to facilitate the removal of the auxiliary positioning device between the upper and lower flanges via the pull ring 3.

[0051] In optional implementations, such as Figure 2 As shown, the pull ring 3 can be a ring-shaped structural component connected to the straightening plate 1.

[0052] In an optional embodiment, the inner arc surface 11 may be provided with a notch 4. This further facilitates the removal of the straightening plate 1 from between the upper and lower flanges through the notch 4.

[0053] In an optional embodiment, the notch 4 can be a rectangular groove with an inner arc surface 11. The width of the notch 4 can be 4mm. It can be pulled out by conventional hooking tools such as hooks to achieve the removal of the straightening plate 1.

[0054] In an optional embodiment, at least two notches 4 are symmetrically arranged in the circular straightening space 5 to facilitate the separate removal of multiple straightening plates 1.

[0055] This embodiment describes a flange bolt auxiliary positioning device, taking an auxiliary positioning device with a circular structure consisting of two arc-shaped ring plates as an example. During installation and use, the two arc-shaped ring plates are first fitted onto the lower flange bolt shank, so that the arc-shaped ring plates are tightly attached to the bolts. The bolts are inserted into the limiting groove 12 of the inner arc surface 11, forcing the bolt axis to coincide with the axis of the limiting groove 12, thereby achieving simultaneous alignment of multiple bolts. Then, the two arc-shaped ring plates are connected and fixed through the docking part 2, so that multiple sets of bolts are effectively aligned and centered. Then, the upper structure is lifted by a hoisting mechanism, and after manual alignment, the upper flange is installed. During disassembly, the connection of the docking part 2 is released, and the straightening plate 1 can be detached from the bolts by pulling the pull ring 3 outward or by using a tool to hook the notch 4, so as to remove it from between the two flanges.

[0056] This embodiment of a flange bolt auxiliary positioning device uses a limiting groove 12 set in the inner arc surface 11 of the straightening plate 1 to hold the bolts, thereby achieving simultaneous straightening of multiple bolts, improving equipment installation efficiency, ensuring installation quality, reducing the time spent in the hoisting state of the upper structure, and reducing installation risks. At the same time, the auxiliary positioning device has a simple structure, the material cost of a single straightening plate 1 is less than 20 yuan, it does not require electricity or complex mechanisms, has low manufacturing cost, is easy to disassemble, and is simple to use. By replacing the straightening plate 1 with different sizes of limiting grooves 12, it can meet the needs of most bolt installation scenarios and has wide application and promotion value.

[0057] 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 flange bolt auxiliary positioning device, characterized in that, include: A straightening plate (1) is provided with an inner arc surface (11), and at least two straightening plates (1) are joined together to form a circular straightening space (5); Limiting groove (12), a plurality of the limiting grooves (12) are arranged at intervals on the inner arc surface (11), the limiting grooves (12) are connected to the circular straightening space (5), and the limiting grooves (12) are adapted to the position and size of the bolt to be straightened; The docking part (2) is disposed between adjacent straightening plates (1), and the adjacent straightening plates (1) are detachably connected through the docking part (2).

2. The flange bolt auxiliary positioning device according to claim 1, characterized in that, The docking part (2) includes a hinge (21) and a locking member (22), and two adjacent straightening plates (1) are connected by the hinge (21) or the locking member (22).

3. The flange bolt auxiliary positioning device according to claim 2, characterized in that, The straightening plate (1) includes an arc-shaped ring plate. One end of the two arc-shaped ring plates is connected by the hinge (21), and the other end is connected by the locking member (22).

4. The flange bolt auxiliary positioning device according to claim 2, characterized in that, A gap of not less than 5 mm is formed between two adjacent straightening plates (1).

5. A flange bolt auxiliary positioning device according to any one of claims 1-4, characterized in that, The docking part (2) is provided with a pull ring (3).

6. The flange bolt auxiliary positioning device according to claim 5, characterized in that, The inner arc surface (11) is provided with a notch (4).

7. The flange bolt auxiliary positioning device according to claim 6, characterized in that, At least two of the notches (4) are symmetrically arranged in the circular straightening space (5).

8. The flange bolt auxiliary positioning device according to claim 1, characterized in that, The limiting groove (12) is a semi-circular groove, and the limiting groove (12) and the bolt to be straightened meet the fit tolerance of ±0.1mm.

9. A flange bolt auxiliary positioning device according to claim 1, characterized in that, The straightening plate (1) includes a rubber plate, and the thickness of the straightening plate (1) is not less than 10 mm.

10. A flange bolt auxiliary positioning device according to claim 9, characterized in that, The straightening plate (1) includes a magnetic rubber structural plate.

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