Flange drilling fixing device adaptive to various outer diameter sizes

Abstract

The utility model relates to a flange drilling fixing device adaptive to various outer diameter sizes. The flange drilling fixing device comprises a base, a disc, an adaptive sleeve connector and a pressing plate. The disc is detachably fixed on the base; a circular mounting groove is formed in the disc; a sleeving part is arranged at the bottom of the adaptive sleeving part, the sleeving part is matched with the circular mounting groove, and the adaptive sleeving part is inserted into the circular mounting groove through the sleeving part; a circular slot is formed in the top of the adaptive adapter; a stud is vertically and upwards fixed to the center of the bottom of the circular mounting groove and sleeved with a pressing plate. And the stud is sleeved with a nut above the pressing plate. The flange fixing device is adaptive to flanges with different outer diameters and can be used for quickly and effectively fixing the flanges.

Description

Technical Field

[0001] This utility model relates to the field of metal products technology, and in particular to a fixing device for drilling flanges that is adaptable to various outer diameter sizes. Background Technology

[0002] like Figure 1 As shown, a flange is a component used to connect equipment such as pipes, valves, pumps, heat exchangers, and machine tools. It is a disc-shaped or ring-shaped metal part with holes, and two flanges are tightly connected together using bolts and nuts, thus achieving connection and sealing between pipes or equipment. Flanges are widely used in the industrial field. They facilitate the installation, disassembly, maintenance, and repair of equipment, while also withstanding the pressure of the medium inside the pipes or equipment, serving a sealing and supporting function to ensure the safe and stable operation of the pipeline system.

[0003] The flange end face needs to be machined with a connecting through hole to connect to the flange end of an external pipeline. Before machining, a fixing device is needed to firmly secure the flange. Currently, most flange fixing devices can only be used to fix flanges of one outer diameter size. When the outer diameter of the flange to be drilled changes, the fixing device cannot achieve effective fixation.

[0004] Therefore, it is necessary to develop a fixing device for flange drilling that is compatible with various outer diameter sizes in order to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide a fixing device for drilling flanges that is compatible with various outer diameter sizes, and to fix flanges of different outer diameter sizes quickly and effectively.

[0006] To achieve the above-mentioned purpose of the utility model, a fixing device for flange drilling that is adaptable to various outer diameter sizes is provided, including a base, a disc, a suitable fitting and a pressure plate;

[0007] The disc is detachably fixed to the base; the disc is provided with a circular mounting groove;

[0008] The bottom of the adapter connector has a sleeve portion, which is adapted to the circular mounting groove, and the adapter connector is inserted into the circular mounting groove through the sleeve portion.

[0009] The top of the adapter has a circular slot;

[0010] A stud is vertically fixed at the bottom center of the circular mounting groove, and the pressure plate is sleeved on the stud.

[0011] A nut is fitted onto the stud above the pressure plate.

[0012] Specifically, the disc is fixed to the base by countersunk screws.

[0013] Furthermore, the base is provided with pressing components on both sides of the disc;

[0014] The pressing component includes a pad, a pressing block, and bolts;

[0015] The pad is placed on the base, and the upper surface of the pad is flush with the upper surface of the disk;

[0016] One end of the pressure block presses against the pad, and the other end presses against the edge of the disc;

[0017] The bolt passes through the pressure block and is threaded onto the base.

[0018] Preferably, the inner wall of the circular mounting groove is provided with a plurality of guide blocks in a ring array, and the outer wall of the sleeve is provided with a plurality of sliding grooves, the sliding grooves extending from the bottom of the sleeve along its axial direction, and the sliding grooves corresponding one-to-one with the guide blocks.

[0019] Furthermore, the adapter connector has a weight-reducing hole at the bottom center.

[0020] Preferably, the pressure plate has a fan-shaped notch at one end.

[0021] This utility model provides a fixing device for drilling flanges that is adaptable to various outer diameter sizes, which has the following advantages compared with the prior art:

[0022] By inserting and setting appropriate connectors on the disc, some parts can be detached and installed, adapting to flanges of various outer diameters and effectively fixing them, which facilitates subsequent drilling of the flange end face. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the flange structure in the background technology.

[0024] Figure 2 This is a schematic diagram of the connection between the disk and the base in this embodiment;

[0025] Figure 3 This is a schematic diagram of the structure of the suitable connector in this embodiment;

[0026] Figure 4 This is a schematic diagram of the pressure plate in this embodiment;

[0027] Figure 5 This is a schematic diagram of the structure of a flange fixing device adapted to various outer diameter sizes after fixing the flange in this embodiment. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0029] This embodiment provides a fixing device for drilling flanges that is compatible with various outer diameter sizes, including a base 1, a disc 2, a suitable connector 3, and a pressure plate 4.

[0030] like Figure 2 As shown, the disc 2 is detachably fixed to the base 1; the disc 2 is provided with a circular mounting groove 5.

[0031] In this embodiment, the disc 2 is fixed to the base 1 by countersunk screws 6.

[0032] Furthermore, such as Figure 2 As shown, the base 1 is provided with pressing components on both sides of the disc 2; the pressing components include a pad 7, a pressing block 8, and a bolt 9; the pad 7 is placed on the base 1, and the upper surface of the pad 7 is flush with the upper surface of the disc 2; one end of the pressing block 8 presses on the pad 7, and the other end presses on the edge of the disc 2; the bolt 9 passes through the pressing block 8 and is threaded into the base 1; this arrangement further effectively fixes the disc 2.

[0033] like Figure 3 As shown, the bottom of the adapter connector 3 has a sleeve portion 10, which is adapted to the circular mounting groove 5. The adapter connector 3 is inserted into the circular mounting groove 5 through the sleeve portion 10. The top of the adapter connector 3 has a circular slot 11.

[0034] In this embodiment, as Figure 2 As shown, the inner wall of the circular mounting groove 5 is provided with a plurality of guide blocks 12 in a ring array, and the outer wall of the sleeve part 10 is provided with a plurality of sliding grooves 13. The sliding grooves 13 extend from the bottom of the sleeve part 10 along its axial direction, and the sliding grooves 13 correspond one-to-one with the guide blocks 12. With this arrangement, the sliding grooves 13 and the guide blocks 12 limit the slippage of the fitting 3 after it is inserted into the circular mounting groove 5.

[0035] Furthermore, in this embodiment, the adapter connector 3 has a weight-reducing hole 14 at the bottom center position to reduce the weight of the adapter connector 3.

[0036] A stud 15 is vertically fixed at the bottom center of the circular mounting groove 5, and the pressure plate 4 is sleeved on the stud 15; a nut 16 is sleeved on the stud 15 above the pressure plate 4.

[0037] In this embodiment, as Figure 4 As shown, the pressure plate 4 has a fan-shaped notch 17 at one end; this design facilitates the quick installation of the pressure plate 4 onto the stud 15.

[0038] like Figure 5 As shown, when fixing the flange, first fix the disc 2 on the base 1, set up two pressure pieces to further fix the disc 2, select the appropriate matching connector 3 and insert it into the circular mounting groove 5; insert the lower part of the flange 18 to be drilled into the circular slot 11 of the matching connector 3; finally, put on the pressure plate 4 and tighten the nut 16 so that the pressure plate 4 presses down on the end of the flange, thus achieving fixation.

[0039] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A fixing device for flange drilling adapted to a plurality of outside diameter sizes, characterized by, Includes base, disc, compatible connectors, and pressure plate; The disc is detachably fixed to the base; the disc is provided with a circular mounting groove; The bottom of the adapter connector has a sleeve portion, which is adapted to the circular mounting groove, and the adapter connector is inserted into the circular mounting groove through the sleeve portion. The top of the adapter has a circular slot; A stud is vertically fixed at the bottom center of the circular mounting groove, and the pressure plate is sleeved on the stud. A nut is fitted onto the stud above the pressure plate.

2. The fixing device for flange drilling for adapting to various outer diameter sizes according to claim 1, wherein The disc is fixed to the base by countersunk screws.

3. The fixing device for flange drilling for adapting to various outer diameter sizes according to claim 2, wherein The base is equipped with pressing components on both sides of the disc; The pressing component includes a pad, a pressing block, and bolts; The pad is placed on the base, and the upper surface of the pad is flush with the upper surface of the disk; One end of the pressure block presses against the pad, and the other end presses against the edge of the disc; The bolt passes through the pressure block and is threaded onto the base.

4. The flange drilling fixture of claim 1, wherein, The inner wall of the circular mounting groove is provided with a plurality of guide blocks in a ring array, and the outer wall of the sleeve is provided with a plurality of sliding grooves. The sliding grooves extend from the bottom of the sleeve along its axial direction, and the sliding grooves correspond one-to-one with the guide blocks.

5. A fixing device for drilling flanges adaptable to various outer diameter sizes as described in claim 4, characterized in that, The adapter connector has a weight-reducing hole at the bottom center.

6. A fixing device for drilling flanges of various outer diameter sizes according to any one of claims 1 to 5, characterized in that, The pressure plate has a fan-shaped notch at one end.

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