Rapid cold tightening flange

Abstract

The utility model relates to the technical field of flanges, and particularly discloses a rapid cold tightening flange which comprises a flange body, a mounting hole is formed in the flange body, a bolt is inserted into the mounting hole, a nut is arranged at one end of the bolt, a transmission assembly is arranged on one side of the flange body, and the transmission assembly is connected with the flange body. The transmission assembly comprises a transmission main piece and transmission auxiliary pieces installed on the nuts, and the transmission main piece is in transmission connection with the transmission auxiliary pieces on all the nuts. By means of the transmission main part in the transmission assembly and the transmission auxiliary parts installed on the nuts in a matched mode, when the transmission assembly rotates, all the transmission auxiliary parts can be driven to carry the corresponding nuts to rotate, and therefore all bolts do not need to be manually fastened, and the cold tightening speed is increased.

Description

Technical Field

[0001] This utility model relates to the field of flange technology, and specifically to a fast cold-tightening flange. Background Technology

[0002] Cryogenic media are transferred and added via pipelines. Flange connections are required between storage tanks and pipelines, and between pipelines themselves, to ensure airtightness. During the pre-cooling process, personnel are typically required to inspect and tighten the bolts manually. Current methods of tightening bolts manually, one bolt at a time, are inefficient. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a fast cold-tightening flange.

[0004] The present invention relates to a quick-tightening flange, comprising a flange body, wherein the flange body has an installation hole, a bolt is inserted into the installation hole, one end of the bolt is provided with a nut, and a transmission assembly is provided on one side of the flange body. The transmission assembly includes a main transmission component and a secondary transmission component mounted on the nut, wherein the main transmission component is connected to all the secondary transmission components on the nut.

[0005] In some embodiments, the transmission assembly further includes a drive member for driving the transmission assembly to rotate the transmission pair carrying the nut.

[0006] In some embodiments, the transmission pair is a transmission gear, which is fixedly connected to one end of the nut near the flange body; the transmission main component is a gear ring, and the transmission gear meshes with the inner side of the gear ring.

[0007] In some embodiments, the flange body is provided with a mounting ring groove for mounting a toothed ring, and the toothed ring rotates in the mounting ring groove about the center as the axis of rotation.

[0008] In some embodiments, the assembly further includes an mounting element mounted on one side of the flange, wherein the mounting element is an annular component and has a mounting groove for mounting a toothed ring, the toothed ring rotating in the mounting groove about the center of the circle.

[0009] In some embodiments, the mounting component has a mating hole corresponding to the mounting hole for bolt penetration.

[0010] In some embodiments, the mounting component is provided with a limiting frame for clamping and limiting the nut; the limiting frame is mounted on the mounting component via a folding hinge or a spring-loaded shaft.

[0011] In some embodiments, the diameter of the transmission gear is larger than the diameter of the nut.

[0012] In some embodiments, the main transmission component includes a synchronous belt or chain, and the secondary transmission component is a transmission gear or transmission sprocket, which is fixedly connected to one end of the nut near the flange body.

[0013] In some embodiments, the device further includes a plurality of tensioning units for tensioning the main transmission component. Each tensioning unit includes a mounting component, an adjusting plate is slidably connected to the mounting component, a tensioning wheel is mounted on the adjusting plate via a connecting rod, and a locking screw is provided on the adjusting plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention utilizes a transmission main component in a transmission assembly, in conjunction with a transmission secondary component mounted on a nut. When the transmission assembly rotates, it can drive all transmission secondary components to rotate with the corresponding nuts, thus eliminating the need for manual tightening of each bolt and accelerating the cold tightening speed. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 This is a schematic diagram of the flange body structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0019] Figure 3 This is a schematic diagram of the mounting component structure in Embodiment 2 of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0021] Figure 5 This is a partial cross-sectional view of the mounting component in Embodiment 2 of this utility model;

[0022] Figure 6 This is a structural schematic diagram of Embodiment 3 of the present invention;

[0023] Figure 7 This is a structural schematic diagram of Embodiment 4 of the present utility model.

[0024] In the diagram: 1. Flange body; 101. Mounting hole; 2. Transmission assembly; 201. Main transmission component; 202. Secondary transmission component; 3. Bolt; 4. Nut; 5. Add-on component; 501. Fitting hole; 6. Limiting bracket; 7. Tensioning unit; 71. Mounting component; 72. Adjusting plate; 73. Tensioning wheel; 74. Locking screw; 8. Mounting ring groove. Detailed Implementation

[0025] The following drawings will disclose several embodiments of this utility model. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these physical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0026] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, such a combination should be considered non-existent and not within the scope of protection claimed by this utility model.

[0027] Example 1:

[0028] Please see Figure 1 - Figure 2 The quick-tightening flange of this utility model includes a flange body 1, on which a mounting hole 101 is provided. A bolt 3 is inserted into the mounting hole 101, and a nut 4 is provided at one end of the bolt 3. A transmission assembly 2 is provided on one side of the flange body 1. The transmission assembly 2 includes a main transmission component 201 and a secondary transmission component 202 mounted on the nut 4. The main transmission component 201 is connected to all the secondary transmission components 202 on the nuts 4.

[0029] The transmission component 202 is a transmission gear, which is fixedly connected to the end of the nut 4 near the flange body 1; the main transmission component 201 is a gear ring, and the transmission gear meshes with the inner side of the gear ring; the flange body 1 is provided with a mounting ring groove 8 for mounting the gear ring, and the gear ring rotates in the mounting ring groove 8 with the center as the axis of rotation.

[0030] In this embodiment:

[0031] The gear ring in the transmission assembly 2 is installed in the mounting ring groove 8 of the flange body 1. Because the gear ring meshes with the transmission gears on all nuts 4, when one nut 4 is driven to rotate, all nuts 4 can rotate synchronously, thus eliminating the need for manual tightening of each bolt 3 and speeding up the cold tightening process.

[0032] Please see Figure 3 Furthermore, the transmission assembly 2 also includes a drive component, which drives the transmission assembly 2 to rotate the transmission pair 202 carrying the nut 4.

[0033] The drive unit can be a motor carrying a gear drive to rotate the transmission gear. Through motor drive, it can be remotely controlled and the cold tightening range of nut 4 can be effectively and accurately controlled.

[0034] Example 2:

[0035] Please see Figure 3 - Figure 6 It also includes an add-on 5, which is installed on one side of the flange. The add-on 5 is an annular component and has a mounting ring groove 8 for mounting the toothed ring. The toothed ring rotates in the mounting ring groove 8 with the center as the axis of rotation.

[0036] In this embodiment, by positioning the gear ring on the mounting piece 5 and replacing the nut 4 of the existing flange, the transmission assembly 2 can be effectively installed on the existing flange without the need for machining the existing flange to adapt it to the existing flange.

[0037] The mounting part 5 has a mating hole 501 for the bolt 3 to pass through the corresponding mounting hole 101, which facilitates the installation of the mounting part 5 on the flange.

[0038] Example 3:

[0039] Please see Figure 6 As a further improvement of Embodiment 2, the mounting part 5 is provided with a limiting frame 6 for clamping and limiting the nut 4; the limiting frame 6 is mounted on the mounting part 5 by a folding hinge or a spring-loaded shaft.

[0040] Furthermore, the diameter of the transmission gear is larger than that of the nut 4, which increases the contact area with the mounting part 5 and also facilitates the limiting frame 6 to limit and clamp the nut 4.

[0041] In this embodiment, the limiting bracket 6 allows the nut 4 to be pre-installed on the mounting piece 5, facilitating the installation of the nut 4 after flange docking. When cold tightening is required, the limiting bracket 6 is disengaged from the nut 4, and the nut 4 is installed on the mounting piece 5 through its self-locking property with the bolt 3. When one nut 4 is rotated for cold tightening, all nuts 4 will rotate synchronously through the transmission component 2, achieving synchronous cold tightening. Then, the limiting bracket 6 is connected to the cold-tightened nut 4, which can effectively prevent the bolt from loosening.

[0042] Example 4:

[0043] In Embodiments 1 to 3, the transmission component 201 is a gear ring, the diameter of which is related to the diameter of the circle formed by the mounting hole 101 on the flange. That is, it can only be used on flanges of the same specification. In order to increase the fault tolerance of the transmission component 2, the following improvements are made.

[0044] Please see Figure 7 In this embodiment, the main transmission component 201 is set as a synchronous belt or chain, and the secondary transmission component 202 is a transmission gear or transmission sprocket. The secondary transmission component 202 is fixedly connected to the end of the nut 4 near the flange body 1.

[0045] It also includes several tensioning units 7 for the tensioning transmission main component 201. Each tensioning unit 7 includes a mounting component 71, an adjusting plate 72 is slidably connected to the mounting component 71, a tensioning wheel 73 is mounted on the adjusting plate 72 via a connecting rod, and a locking screw 74 is provided on the adjusting plate 72.

[0046] In this embodiment, the main transmission component 201 is a synchronous belt or chain. With the setting of the tensioning unit 7, the transmission component 2 is not limited by the diameter of the mounting hole 101 on the flange body 1 while engaging with all the transmission components 202. By changing the length of the transmission component 2, in conjunction with the tensioning unit 7, it can be effectively ensured that the same transmission component 2 can be adapted to different types of flanges to a certain extent.

[0047] The above are merely embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made to the spirit and principles of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A quick-tightening flange, comprising a flange body (1), wherein the flange body (1) has a mounting hole (101), a bolt (3) is inserted into the mounting hole (101), and a nut (4) is provided at one end of the bolt (3), characterized in that: A transmission assembly (2) is provided on one side of the flange body (1). The transmission assembly (2) includes a main transmission component (201) and a secondary transmission component (202) mounted on the nuts (4). The main transmission component (201) is connected to the secondary transmission components (202) on all the nuts (4). The transmission component (202) is a transmission gear, which is fixedly connected to one end of the nut (4) near the flange body (1); the transmission main component (201) is a gear ring, and the transmission gear meshes with the inner side of the gear ring. It also includes an add-on (5), which is installed on one side of the flange. The add-on (5) is an annular component and has an installation ring groove (8) for mounting the toothed ring. The toothed ring rotates in the installation ring groove (8) with the center as the axis of rotation. The mounting component (5) has a fitting hole (501) corresponding to the mounting hole (101) for the bolt (3) to pass through.

2. The quick-tightening flange according to claim 1, characterized in that: The transmission assembly (2) further includes a driving member, which is used to drive the transmission assembly (2) to make the transmission pair (202) rotate carrying the nut (4).

3. The quick-tightening flange according to claim 1, characterized in that: The mounting component (5) is provided with a limiting frame (6) for clamping and limiting the nut (4); the limiting frame (6) is mounted on the mounting component (5) by means of a folding hinge or a spring-loaded shaft.

4. A quick-tightening flange according to claim 3, characterized in that: The diameter of the transmission gear is greater than the diameter of the nut (4).

5. A quick-tightening flange, comprising a flange body (1), wherein the flange body (1) has a mounting hole (101), a bolt (3) is inserted into the mounting hole (101), and a nut (4) is provided at one end of the bolt (3), characterized in that: A transmission assembly (2) is provided on one side of the flange body (1). The transmission assembly (2) includes a main transmission component (201) and a secondary transmission component (202) mounted on the nuts (4). The main transmission component (201) is connected to the secondary transmission components (202) on all the nuts (4). The main transmission component (201) includes a synchronous belt or chain, and the secondary transmission component (202) is a transmission gear or a transmission sprocket. The secondary transmission component (202) is fixedly connected to the end of the nut (4) near the flange body (1). It also includes several tensioning units (7) for the tensioning transmission main component (201), each tensioning unit (7) including a mounting component (71), an adjusting plate (72) slidably connected to the mounting component (71), a tensioning wheel (73) mounted on the adjusting plate (72) via a connecting rod, and a locking screw (74) provided on the adjusting plate (72).

6. A quick-tightening flange according to claim 5, characterized in that: The transmission assembly (2) further includes a driving member, which is used to drive the transmission assembly (2) to make the transmission pair (202) rotate carrying the nut (4).

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