CN215908612U - Butt clamp butterfly valve flange connection structure convenient to dismantle - Google Patents
Butt clamp butterfly valve flange connection structure convenient to dismantle Download PDFInfo
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- CN215908612U CN215908612U CN202121213696.8U CN202121213696U CN215908612U CN 215908612 U CN215908612 U CN 215908612U CN 202121213696 U CN202121213696 U CN 202121213696U CN 215908612 U CN215908612 U CN 215908612U
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Abstract
The utility model discloses a butt-clamping butterfly valve flange connecting structure convenient to disassemble, and belongs to the technical field of butt-clamping butterfly valve installation. The butterfly valve comprises a first flange, a second flange and a butt-clamping butterfly valve, wherein the first flange and the second flange are connected through a plurality of fastening bolts; still include expansion assembly, expansion assembly includes stud and two expansion nuts, stud passes along the axial first flange and second flange, two expansion nuts installs respectively stud's both ends, and two expansion nuts all is located between first flange and the second flange. The butterfly valve assembling and disassembling device disclosed by the utility model can be used in a process of assembling and disassembling the butt-clamping butterfly valve only by using a spanner, is suitable for a narrow space, and is very convenient to operate and high in efficiency.
Description
Technical Field
The utility model relates to the technical field of butt-clamp butterfly valve installation, in particular to a butt-clamp butterfly valve flange connecting structure convenient to disassemble.
Background
The butt-clamp butterfly valve is one of the most common valve types in industrial pipelines, has simple structure, small volume and light weight, is installed only by putting the butterfly valve in the middle of flanges at two ends of a pipeline and then using a stud to pass through the pipeline flange and the butt-clamp butterfly valve to be locked, and is particularly suitable for places with narrow space or short distance between pipelines.
When the wafer butterfly valve is maintained and replaced, because the installation position has no telescopic joint, the distance between the two pipeline flanges is short, the wafer butterfly valve is difficult to take down, and the wafer butterfly valve can be detached by a plurality of operators with great labor and time consumption. Therefore, it is necessary to design a new flange connection structure for a butterfly valve to solve the problem of difficulty in mounting and dismounting the butterfly valve.
Through retrieval, the prior dismounting device for the wafer butterfly valve (authorized bulletin number: CN209007460U, authorized bulletin date: 2019.06.21) comprises at least two dismounting units, wherein the dismounting units comprise an outer U-shaped piece, an inner U-shaped piece, a connecting rod and a handle: the outer U-shaped part comprises a first upper horizontal part, a first vertical part and a first lower horizontal part; the inner U-shaped piece comprises a second upper horizontal part, a second vertical part and a second lower horizontal part; the opening directions of the outer U-shaped part and the inner U-shaped part are the same, and the opening size of the outer U-shaped part is larger than that of the inner U-shaped part; a first nut is arranged on the outer U-shaped part; a second nut is arranged on the inner U-shaped part; the connecting rod sequentially passes through the first nut, the outer U-shaped piece, the inner U-shaped piece and the second nut; the handle is arranged at one end of the connecting rod far away from the second nut. In the utility model, when the wafer butterfly valve is disassembled, the disassembling device needs to be installed in a narrow space, and the operation is very inconvenient; moreover, the dismounting device needs to be carried by workers, and is very inconvenient to use; in addition, when the device is used for disassembling the opposite clamping type butterfly valve, the two sides of the pipeline are stressed on one side, so that the two sides of the pipeline deviate from concentricity, and the concentricity error between the opposite clamping type butterfly valve and the pipeline is increased when the opposite clamping type butterfly valve is installed again.
SUMMERY OF THE UTILITY MODEL
The problem that when the wafer type butterfly valve is disassembled in the prior art, an external auxiliary disassembling device needs to be installed in a narrow space, and the operation is very inconvenient is solved.
Based on the structure, the utility model provides a conveniently-detached butt-clamping butterfly valve flange connecting structure which comprises a first flange, a second flange and a butt-clamping butterfly valve, wherein the first flange and the second flange are connected through a plurality of fastening bolts; still include expansion assembly, expansion assembly includes stud and two expansion nuts, stud passes along the axial first flange and second flange, two expansion nuts installs respectively stud's both ends, and two expansion nuts all is located between first flange and the second flange.
Among the above-mentioned butt clamp butterfly valve flange connection structure, when dismantling the butt clamp butterfly valve, only need two expansion nuts of rotatory, make it remove to stud tip respectively, can promote first flange and the outside expansion of second flange, loosen the butt clamp butterfly valve of being pressed from both sides dress. The in-process only needs to use the spanner can, be applicable to narrow and small space, and the dismouting is very convenient to the operation of pressing from both sides the butterfly valve, and is efficient.
Further, the middle part of stud has the draw-in groove that supplies the utensil centre gripping to prevent at rotatory expansion nut in-process, the phenomenon of skidding appears between the utensils such as stud and spanner.
Further, the expansion assembly further comprises two locking nuts, wherein the two locking nuts are respectively installed at two ends of the stud bolt and locked at the outer sides of the first flange and the second flange. By providing two locking nuts, the expansion assembly can act as a connecting bolt for the first flange and the second flange.
Further, the expansion assembly has more than two expansion supporting points formed between the two flanges, so that the two flanges are easier to expand and separate.
Furthermore, the expansion components surround the butt-clamp butterfly valves and are uniformly distributed, so that the two flanges are uniformly stressed and are spread, the two side pipelines are prevented from deviating from being concentric in the separation process, and the installation precision of the follow-up butt-clamp butterfly valves is ensured.
Further, first flange and second flange all have outside convex ear, the expansion subassembly is connected between first flange and the corresponding ear of second flange to increase the interval of expansion subassembly and butt clamp butterfly valve, guarantee to take out the butt clamp butterfly valve smoothly after the flange separates, make things convenient for follow-up installation of butt clamp butterfly valve simultaneously.
Drawings
FIG. 1 is a schematic structural view of a flange connection structure of a butt-clamp butterfly valve according to the present invention;
FIG. 2 is a schematic structural view of a flange expansion assembly;
FIG. 3 is a schematic view of a flange configuration;
in the drawings: 1. a first flange; 2. a second flange; 200. an ear portion; 3. oppositely clamping a butterfly valve; 4. fastening a bolt; 5. an expansion assembly; 51. a stud bolt; 511. a card slot; 52. expanding the nut; 53. and locking the nut.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
Examples
Referring to fig. 1 to 3, in the present embodiment, a conveniently detachable flange connection structure for a butt-clamped butterfly valve is provided, including a first flange 1, a second flange 2, and a butt-clamped butterfly valve 3, where the first flange 1 and the second flange 2 are connected by a plurality of fastening bolts 4, and the butt-clamped butterfly valve 3 is clamped between the first flange 1 and the second flange 2; still include expansion block 5, expansion block 5 includes stud 51 and two expansion nuts 52, stud 51 passes along the axial first flange 1 and second flange 2, two expansion nuts 52 are installed respectively the both ends of stud 51, and two expansion nuts 52 all are located between first flange 1 and the second flange 2.
When the opposite clamping butterfly valve 3 is detached, the two expansion nuts 52 are rotated to move toward the end portions of the stud bolts 51, the first flange 1 and the second flange 2 are pushed by the two expansion nuts 52 to expand outward, and the clamped opposite clamping butterfly valve 3 is loosened. This in-process only need use the spanner can, be applicable to in the narrow and small space, and the dismouting is very convenient to the operation that presss from both sides butterfly valve 3, and is efficient.
In this embodiment, the middle of the stud bolt 51 has a slot 511 for holding an instrument. The tool referred to herein is a tool such as a wrench for removing a bolt, which has a clamping function. When the expansion nut 52 is rotated, the stud bolt 51 and the expansion nut 52 need to be held by a wrench, but slip is likely to occur between the stud bolt 51 and the wrench during rotation of the expansion nut 52. In this scheme, through setting up draw-in groove 511 supplies utensil centre gripping such as spanner, has effectively solved this problem of skidding easily for the dismouting operation is more high-efficient.
In this embodiment, the expansion assembly 5 further includes two locking nuts 53, and the two locking nuts 53 are respectively mounted at two ends of the stud bolt 51 and locked outside the first flange 1 and the second flange 2. After installing butt clamp butterfly valve 3, through screwing two lock nut 53 for expansion block 5 can act as the connecting piece of two flanges, has improved flange joint's fastness, avoids simultaneously because of the not hard up noise that produces of expansion block 5.
In the present embodiment, the expansion assembly 5 has more than two, and a plurality of expansion supporting points can be formed between the two flanges, so that the two flanges can be expanded and separated more easily. The expansion components 5 surround the butt-clamping butterfly valves 3 and are evenly distributed, so that the two flanges are uniformly stressed and are spread, the two side pipelines are prevented from deviating from being concentric in the separation process, and the installation accuracy of the follow-up butt-clamping butterfly valves 3 is guaranteed.
In this embodiment, the first flange 1 and the second flange 2 each have an outwardly protruding ear 200, and the expansion member 5 is connected between the corresponding ears 200 of the first flange 1 and the second flange 2. After setting up like this, can increase the interval between expansion block 5 and the butt clamp butterfly valve 3, guarantee to take out the butt clamp butterfly valve 3 smoothly after the flange separates, provide convenience for follow-up installation of butt clamp butterfly valve 3 simultaneously.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the utility model, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the utility model.
Claims (6)
1. A butt-clamping butterfly valve flange connecting structure convenient to disassemble comprises a first flange (1), a second flange (2) and a butt-clamping butterfly valve (3), wherein the first flange (1) and the second flange (2) are connected through a plurality of fastening bolts (4), and the butt-clamping butterfly valve (3) is clamped between the first flange (1) and the second flange (2);
it is characterized in that the preparation method is characterized in that,
still include expansion block (5), expansion block (5) include stud (51) and two expansion nuts (52), stud (51) are passed along the axial first flange (1) and second flange (2), two expansion nuts (52) are installed respectively the both ends of stud (51), and two expansion nuts (52) all are located between first flange (1) and second flange (2).
2. The flange connection structure of a split butterfly valve convenient to disassemble as claimed in claim 1, wherein the middle part of the stud bolt (51) is provided with a clamping groove (511) for clamping an appliance.
3. The easy-to-disassemble butt clamp butterfly valve flange connection structure according to claim 1, wherein the expansion assembly (5) further comprises two locking nuts (53), the two locking nuts (53) are respectively installed at two ends of the stud bolt (51) and locked at the outer sides of the first flange (1) and the second flange (2).
4. The easy-to-detach butt-clamp butterfly valve flange connection according to any one of claims 1 to 3, wherein the expansion assembly (5) has more than two.
5. A split-clamp butterfly valve flange connection to facilitate disassembly according to claim 4, characterized in that the expansion elements (5) are evenly distributed around the split-clamp butterfly valve (3).
6. The flange connection structure of a pair of butterfly valves convenient to disassemble and assemble as claimed in any one of claims 1 to 3, wherein the first flange (1) and the second flange (2) are provided with outward protruding ears (200), and the expansion assembly (5) is connected between the corresponding ears (200) of the first flange (1) and the second flange (2).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202121213696.8U CN215908612U (en) | 2021-06-01 | 2021-06-01 | Butt clamp butterfly valve flange connection structure convenient to dismantle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN202121213696.8U CN215908612U (en) | 2021-06-01 | 2021-06-01 | Butt clamp butterfly valve flange connection structure convenient to dismantle |
Publications (1)
Publication Number | Publication Date |
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CN215908612U true CN215908612U (en) | 2022-02-25 |
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Application Number | Title | Priority Date | Filing Date |
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CN202121213696.8U Active CN215908612U (en) | 2021-06-01 | 2021-06-01 | Butt clamp butterfly valve flange connection structure convenient to dismantle |
Country Status (1)
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CN (1) | CN215908612U (en) |
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2021
- 2021-06-01 CN CN202121213696.8U patent/CN215908612U/en active Active
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