Flange assembly device

Abstract

The invention belongs to the technical field of industrial pipeline construction, and specifically relates to a flange assembly device, which is used for butt-jointing a flange plate and a pipeline, and comprises: a U-shaped fixture for fixing the pipeline, a screw seat 1 and a screw rod 1 which are screwed together to divide the U-shaped fixture into two symmetrical clamping parts, and the butt-jointing surfaces of the clamping parts clamp and fix the pipeline through an arc-shaped clamping component, and the clamping part comprises a curved connecting piece and a connecting part 1; the invention can control the angle between the pipeline and the upper end opening of the flange plate by adjusting the screw rod 1 and the screw rod 2 on the U-shaped fixture, and further adjust the gap between the flange plate and the pipeline by adjusting the inner nut and the outer nut, so that the flange plate can be fixed and the pipeline and the flange plate can be quickly assembled and welded; in addition, the arc-shaped clamping component can be controlled to be suitable for clamping and fixing pipelines of different thicknesses while adapting to the clamping of curved pipelines, so that the assembly device in the invention can be extended to the butt-jointing treatment of small-sized pipelines and flanges.

Description

Technical Field

[0001] The invention belongs to the technical field of industrial pipeline construction, and in particular relates to a flange assembly device. Background Art

[0002] In the existing industrial pipeline construction process, there are many different sizes of pipes connected with flanges. At present, when connecting two pipes, the connecting flange is generally fixedly welded into one or connected by bolts, but the following problems often occur during the connection process:

[0003] (1) Due to different pipe sizes, such as small-size flanges, existing tooling is usually unable to quickly assemble the pipe mouth and flange, making it difficult to ensure the angle and gap between the pipe mouth and flange, and the misalignment is difficult to control, resulting in low construction efficiency and poor matching quality.

[0004] (2) For elbows in industrial pipelines, when connecting two pipes with a connecting flange, it is not convenient to quickly align the pipe ends of the two pipes to be connected with each other. Workers are required to constantly adjust the position of the pipe docking, which wastes installation time and is very inconvenient. Summary of the invention

[0005] The purpose of the present invention is to provide a flange assembly device to solve the problem of poor quality when small-sized pipes and elbows are connected to flanges in the prior art mentioned in the background technology.

[0006] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0007] A flange assembly device, which is used for butting a flange plate and a pipeline, and comprises:

[0008] A U-shaped clamp for fixing a pipe, wherein a screw seat 1 and a screw rod 1 are screwed together to divide the U-shaped clamp into two symmetrical clamping parts, wherein the butt joint surfaces of the clamping parts clamp and fix the pipe through an arc-shaped clamping assembly, wherein the clamping part comprises a curved connecting piece and a connecting part 1, wherein a clamp leg is provided at a lower end of the connecting part, wherein a support rod is horizontally provided with the clamp leg toward the pipe direction, and a screw seat 2 is provided on the support rod, wherein a screw rod 2 is screwed inside the screw seat 2, and the screw rod 1 and the screw rod 2 are adjusted to clamp and fix the pipe;

[0009] The threaded portion, the inner nut and the outer nut are used to fix the flange, wherein the threaded portion is arranged at the lower end of the clamp leg and extends to the bottom of the flange, and the threaded portion is located on the upper and lower end surfaces of the flange and is respectively screwed with the inner nut and the outer nut.

[0010] As a further optimization scheme of the present invention, the arc-shaped clamping assembly includes two clamping plates arranged opposite to each other, and a gas channel is provided inside the clamping plates, a plurality of fixing holes are opened on the clamping surface of the clamping plates, and a telescopic bag is embedded in the fixing holes, and an air nozzle for inflating the telescopic bag is provided on the side of the clamping plate.

[0011] As a further optimization solution of the present invention, the connecting portion 1 and the fixture legs and the bent connecting piece are all welded.

[0012] As a further optimization solution of the present invention, the curved connector is specifically a fixed-length steel curved pipe.

[0013] As a further optimization scheme of the present invention, the curved connecting member includes a base rigidly connected to the connecting part one, a rotating support one rotatably arranged on the base, a rotating support two rotatably arranged on the rotating support one, and a rotating support three rotatably arranged on the rotating support two, the end of the rotating support three is rigidly connected to the arc clamping assembly, and the rotating support one on the base, the rotating support two on the rotating support one, and the rotating support three on the rotating support two are all screwed with a screw three.

[0014] As a further optimization scheme of the present invention, the screw rod three is rotated to adjust the angles among the base, the rotating support one, the rotating support two and the rotating support three, so that the arc-shaped clamping assembly clamps and fixes the curved pipe.

[0015] The beneficial effects of the present invention are:

[0016] 1) The present invention can control the clamping and fixing of the U-shaped fixture and the pipeline by adjusting the screw rod 1 on the U-shaped fixture, and can control the angle between the pipeline and the upper opening of the flange by adjusting the screw rod 2, and can further adjust the gap between the flange and the pipeline by adjusting the inner nut and the outer nut. Therefore, the assembly device can not only fix the flange, but also quickly assemble and weld the pipeline and the flange.

[0017] 2) In the present invention, when the pipe to be connected is a plastic or soft pipe, in order to prevent the clamping plate from compressing the outer wall of the pipe and causing indentations or damage to the outer wall during the clamping process, the air nozzle is inflated by an external air pump, so that the gas enters the telescopic bag through the gas channel and the fixing hole, so that the telescopic bag expands, which plays a protective role on the pipe wall of the special material and prevents scratches during the connection process;

[0018] 3) When it is necessary to dock the upper end of the curved pipe and the flange, the angles among the base, the rotating support 1, the rotating support 2 and the rotating support 3 can be adaptively adjusted according to the curved shape of the pipe. When the two rotating supports 1 are rotated to the leftmost end or the rightmost end, the distance between the two clamping plates reaches the farthest or closest point, so that the arc-shaped clamping assembly is suitable for clamping and fixing pipes of different thicknesses while adapting to the clamping of curved pipes. Therefore, the assembly device in the present invention can be extended to the docking processing of small-sized pipes and flanges. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the arc clamping assembly in the present invention;

[0021] Figure 3 It is a schematic diagram of the structure of the clamping plate in the present invention;

[0022] Figure 4 It is a partial structural schematic diagram of the U-shaped fixture in the present invention.

[0023] In the figure: 1. flange; 2. pipe; 3. U-shaped clamp; 4. arc clamping assembly; 5. screw seat 1; 6. screw rod 1; 7. clamp leg; 8. connection part 1; 9. threaded part; 10. inner nut; 11. outer nut; 12. support rod; 13. screw seat 2; 14. screw rod 2; 15. gas nozzle; 16. bent connector; 31. base; 32. rotating support 1; 33. screw rod 3; 34. rotating support 2; 35. rotating support 3; 41. clamping plate; 42. fixing hole; 43. telescopic bag; 44. gas channel. DETAILED DESCRIPTION

[0024] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0025] Example 1

[0026] like Figure 1-3 As shown, a flange assembly device is used for connecting a flange plate 1 and a pipeline 2. In this embodiment, the pipeline 2 is a straight pipe. The assembly device includes:

[0027] A U-shaped fixture 3 for fixing a pipe 2, a screw seat 15 and a screw rod 16 are screwed to divide the U-shaped fixture 3 into two symmetrical clamping parts, the butt joint surfaces of the clamping parts clamp and fix the pipe 2 through an arc-shaped clamping assembly 4, the clamping part comprises a curved connecting piece 16 and a connecting part 18, a fixture leg 7 is provided at the lower end of the connecting part 18, a support rod 12 is horizontally provided at the fixture leg 7 toward the pipe 2, a screw seat 2 13 is provided on the support rod 12, a screw seat 2 13 is screwed inside a screw rod 2 14, and the screw 1 6 and the screw 2 14 are adjusted to clamp and fix the pipe 2;

[0028] The threaded portion 9, the inner nut 10 and the outer nut 11 are used to fix the flange 1, wherein the threaded portion 9 is arranged at the lower end of the fixture leg 7 and extends to the bottom of the flange 1, and the threaded portion 9 is located on the upper and lower end surfaces of the flange 1 and is screwed with the inner nut 10 and the outer nut 11 respectively.

[0029] In this embodiment, by adjusting the screw 1 6 on the U-shaped clamp 3, the U-shaped clamp 3 and the pipe 2 can be clamped and fixed, the screw 2 14 can be adjusted to control the angle between the pipe 2 and the upper end opening of the flange 1, and the inner nut 10 and the outer nut 11 can be further adjusted to adjust the gap between the flange 1 and the pipe 2; therefore, the assembly device can not only fix the flange 1, but also quickly assemble and weld the pipe 2 and the flange 1. In addition, the present invention can be extended to the docking processing of small-sized pipes and flanges.

[0030] In order to further enhance the clamping and fixing effect of the arc-shaped clamping assembly 4 on pipes of various materials, the arc-shaped clamping assembly 4 includes two clamping plates 41 arranged opposite to each other, and a gas passage 44 is provided inside the clamping plate 41, a plurality of fixing holes 42 are provided on the clamping surface of the clamping plate 41, and a telescopic bag 43 is embedded in the fixing hole 42, and a gas nozzle 15 for inflating the telescopic bag 43 is provided on the side of the clamping plate 41.

[0031] When the pipes to be connected are made of steel, there is no need to inflate the clamping plate 41. When the pipes to be connected are plastic or soft pipes, in order to prevent the clamping plate 41 from compressing the outer wall of the pipe and causing indentations or damage to the outer wall during the clamping process, the air nozzle 15 is inflated by an external air pump, so that the gas enters the telescopic bag 43 through the gas channel 44 and the fixing hole 42, causing the telescopic bag 43 to swell, thereby protecting the pipe wall of special material and preventing scratches during the connection process.

[0032] It should be noted that, for pipes with uneven outer walls of the pipe 2 , the air nozzle 15 can be inflated by an external air pump, and the expansion bag 43 can expand to make the clamping force of the outer wall of such pipes more uniform, so as to fully protect the pipe 2 .

[0033] In order to further enhance the rigidity of the device, the connecting part 8 and the fixture leg 7 and the bent connecting piece 16 are all welded.

[0034] In order to further make the assembly device suitable for the connection between a straight pipe and a flange, the curved connector 16 is specifically a fixed-length steel curved pipe.

[0035] Example 2

[0036] In this embodiment, the pipeline 2 is a curved pipe, and the only difference between its assembly device and that in Example 1 is that the structure of the curved connector 16 is different. The structure of the curved connector 16 is further optimized here. Specifically, the curved connector 16 includes a base 31 rigidly connected to the connecting portion 8, a rotating support 1 32 rotatably arranged on the base 31, a rotating support 2 34 rotatably arranged on the rotating support 1 32, and a rotating support 3 35 rotatably arranged on the rotating support 2 34. The end of the rotating support 35 is rigidly connected to the arc clamping assembly 4, and the rotating support 1 32 on the base 31, the rotating support 2 34 on the rotating support 1 32, and the rotating support 3 35 on the rotating support 2 34 are all screwed with a screw 33.

[0037] Specifically, the screw rod 33 is rotated to adjust the angles among the base 31 , the rotating support 1 32 , the rotating support 2 34 , and the rotating support 3 35 , so that the arc-shaped clamping assembly 4 clamps and fixes the curved pipe 2 .

[0038] When it is necessary to butt the curved pipe 2 and the upper end of the flange 1, the angles among the base 31, the first rotating support 32, the second rotating support 34 and the third rotating support 35 can be adaptively adjusted according to the curved shape of the pipe 2, such as Figure 4 As shown, when the two rotating supports 32 are rotated to the leftmost end or the rightmost end, the distance between the two clamping plates 41 reaches the farthest or closest point, so that the arc clamping assembly 4 is suitable for clamping and fixing pipes 2 of different thicknesses while adapting to the clamping of curved pipes.

[0039] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A flange assembly device, the assembly device is used to butt a flange (1) and a pipeline (2), characterized in that: The pairing device comprises: A U-shaped clamp (3) for fixing a pipe (2), wherein a screw seat (5) and a screw rod (6) are screwed together to divide the U-shaped clamp (3) into two symmetrical clamping parts, wherein the butt joint surfaces of the clamping parts clamp and fix the pipe (2) through an arc-shaped clamping assembly (4), wherein the clamping parts comprise a bent connecting piece (16) and a connecting part (8), wherein the lower end of the connecting part (8) is provided with a clamp leg (7), wherein the clamp leg (7) is horizontally provided with a support rod (12) facing the pipe (2), wherein a screw seat (13) is provided on the support rod (12), wherein a screw rod (14) is screwed inside the screw seat (13), and wherein the screw rod (6) and the screw rod (14) are adjusted to clamp and fix the pipe (2); A threaded portion (9), an inner nut (10), and an outer nut (11) for fixing the flange (1), wherein the threaded portion (9) is arranged at the lower end of the clamp leg (7) and extends to the bottom of the flange (1), and the threaded portion (9) is located on the upper and lower end surfaces of the flange (1) and is respectively threadedly connected to the inner nut (10) and the outer nut (11).

2. A flange assembly device according to claim 1, characterized in that: The arc-shaped clamping assembly (4) comprises two clamping plates (41) arranged opposite to each other, wherein a gas passage (44) is provided inside the clamping plates (41), a plurality of fixing holes (42) are provided on the clamping surface of the clamping plates (41), and a telescopic bag (43) is embedded in the fixing holes (42), and a gas nozzle (15) for inflating the telescopic bag (43) is provided on the side of the clamping plates (41).

3. A flange assembly device according to claim 1, characterized in that: The connecting portion 1 (8) and the fixture leg (7) and the bent connecting piece (16) are all welded.

4. A flange assembly device according to claim 1, characterized in that: The curved connecting piece (16) is specifically a fixed-length steel curved pipe.

5. A flange assembly device according to any one of claims 1 to 3, characterized in that: The curved connecting member (16) comprises a base (31) rigidly connected to the connecting portion 1 (8), a rotating support 1 (32) rotatably arranged on the base (31), a rotating support 2 (34) rotatably arranged on the rotating support 1 (32), and a rotating support 3 (35) rotatably arranged on the rotating support 2 (34), the end of the rotating support 3 (35) being rigidly connected to the arc-shaped clamping assembly (4), and a screw 3 (33) being screwed between the base (31) and the rotating support 1 (32), between the rotating support 1 (32) and the rotating support 2 (34), and between the rotating support 2 (34) and the rotating support 3 (35).

6. A flange assembly device according to claim 5, characterized in that: The screw rod three (33) is rotated to adjust the angles among the base (31), the rotating support one (32), the rotating support two (34), and the rotating support three (35), so that the arc-shaped clamping assembly (4) clamps and fixes the curved pipe (2).

Images