CN-116460399-B - Portable fixed bolster is used in impulse tube welding

Abstract

The invention relates to a portable fixing support for welding a pressure guide pipe. The welding fixture comprises two fixing brackets which are overlapped and placed and used for clamping the impulse pipes to form a 冂 -shaped structure, each fixing bracket comprises a cross rod and two vertical rods, two fixing lugs used for connecting the two fixing brackets together are arranged on the two vertical rods, the fixing lugs on the two fixing brackets are in one-to-one correspondence, bolts used for connecting the two fixing brackets are arranged between the fixing lugs at corresponding positions on the two fixing brackets, the impulse pipes are clamped in the middle through the two fixing brackets, and the clamping force is controlled through the bolts so that the heads of the two impulse pipes which need to be welded are clamped and fixed, so that the welding operation does not need to be supported by hands, the heads of the two impulse pipes do not deviate during welding, and welding tight thread joints can be achieved.

Inventors

• LI HUA
• HU HUI
• LIU JUN

Assignees

• 中国化学工程第三建设有限公司

Dates

Publication Date

20260508

Application Date

20230310

Claims (4)

1. 1. The portable fixing support for welding the impulse pipe is characterized by comprising two fixing supports which are overlapped and placed and used for clamping the impulse pipe and are of a 冂 -shaped structure, wherein each fixing support comprises a cross rod (1) and two vertical rods, two fixing lugs (2) used for connecting the two fixing supports together are arranged on each vertical rod, the fixing lugs (2) on the two fixing supports are in one-to-one correspondence, and bolts (3) used for connecting the two fixing supports are arranged between the fixing lugs (2) at corresponding positions on the two fixing supports; the vertical rod comprises a first rod (4) and a second rod (5) which are connected in a hinged mode, and an anti-slip pressing block (6) is arranged in the contact direction of the second rod (5) and the pressure guide pipe; Two connecting rods (7) are arranged on the cross rod (1), one end, far away from the cross rod (1), of each connecting rod (7) is provided with a limiting block (8) for preventing dislocation of two pressure guiding pipe joints, and the limiting blocks (8) on the two cross rods (1) form two circular rings; the anti-skid pressing block is characterized in that a first telescopic rod (9) capable of automatically resetting is arranged in the middle of the inner side wall of the anti-skid pressing block (6), a second telescopic rod (10) for clamping the impulse pipe joint to prevent dislocation of the impulse pipe joint is arranged at the upper end and the lower end of the circular ring, and an air pipe for conveying air is arranged between the first telescopic rod (9) and the second telescopic rod (10) on the same fixed support.
2. 2. The portable fixing support for welding the impulse pipe of claim 1, wherein the transverse rod (1) is parallel to the impulse pipe when the impulse pipe is clamped by the fixing support, and the distance between the transverse rod (1) and the impulse pipe is more than or equal to 27cm.
3. 3. The portable fixing support for welding the impulse pipe, as claimed in claim 1, characterized in that the bolt (3) is a butterfly bolt (3).
4. 4. The portable fixing support for welding the impulse pipe according to claim 1, wherein one limiting block (8) is provided with an arc block (11) rotating along the circumferential direction of the limiting block, the arc block (11) is provided with a rectangular block (12), the rectangular block (12) is provided with a limiting hole (13) for placing a welding gun welding head, the arc block (11) is provided with a connecting rope (14), one end, far away from the arc block (11), of the connecting rope (14) is divided into two fork ropes and then is respectively connected to two bolts (3) far away from a cross rod (1), and the connecting rope (14) unscrews the bolts (3) along with the rotation of the arc block (11).

Description

Portable fixed bolster is used in impulse tube welding Technical Field The invention belongs to the technical field of welding of impulse pipes, and particularly relates to a portable fixing support for welding of an impulse pipe. Background Along with the gradual maturity of the application of the automatic control technology in petrochemical industry, the construction technical requirement for the instrument is also improved, and the normal application of instrument equipment is the premise and guarantee of the stable operation of the whole chemical field. The installation of the instrument impulse pipe occupies 30% of the operation amount of the instrument, the connection mode of the impulse pipe is butt welding, and most of transmitter measuring media are inflammable and explosive products such as propylene ethylene, so that the welding quality requirement on the impulse pipe is extremely high, and welding seams need to be tightly screwed in the welding process of the impulse pipe. At present, the welding quality is low when welding the impulse pipe, and the welding needs additional personnel to assist to cause the problem of low welding efficiency. Disclosure of Invention The invention aims to solve the problems in the prior art and provide a portable fixing bracket for welding a pressure guide tube. The invention realizes the above purpose through the following technical scheme: The utility model provides a portable fixed bolster is used in impulse tube welding, is used for pressing from both sides tight impulse tube to put including two overlaps the fixed bolster that is 冂 font structures, every the fixed bolster all includes a horizontal pole and two montants, two all be equipped with two on the montant and be used for two fixed lugs that fixed bolster links together, two fixed lug one-to-one on the fixed bolster is equipped with the bolt that is used for linking two fixed bolsters between the fixed lug of corresponding position on the fixed bolster. Preferably, the cross rod is parallel to the impulse pipe when the impulse pipe is clamped by the fixing support, and the distance between the cross rod and the impulse pipe is more than or equal to 27cm. Preferably, the bolt adopts a butterfly bolt. Preferably, the vertical rod comprises a first rod and a second rod which are connected in a hinged mode, and an anti-slip pressing block is arranged in the contact direction of the second rod and the pressure guiding pipe. Preferably, two connecting rods are arranged on the cross rod, one end, away from the cross rod, of each connecting rod is provided with a limiting block for preventing dislocation of the two pressure guiding pipe joints, and the limiting blocks on the two cross rods form two circular rings. Preferably, the middle part of the inner side wall of the anti-skid pressing block is provided with a number one telescopic rod capable of automatically resetting, the upper end and the lower end of the circular ring are respectively provided with a number two telescopic rod for clamping the impulse pipe joint to prevent dislocation of the impulse pipe joint, and an air pipe for conveying air is arranged between the number one telescopic rod and the number two telescopic rods on the same fixed support. Preferably, one of the limiting blocks is provided with an arc block rotating along the circumferential direction of the limiting block, the arc block is provided with a rectangular block, the rectangular block is provided with a limiting hole for placing a welding gun welding head, the arc block is provided with a connecting rope, one end, far away from the arc block, of the connecting rope is divided into two fork ropes and then is respectively connected to two bolts far away from a cross rod, and the connecting rope is unscrewed from the bolts along with the rotation of the arc block. The invention has the beneficial effects that: According to the invention, the impulse pipes are clamped between the two fixing brackets, the clamping force is controlled through the bolts, so that the heads of the two impulse pipes to be welded are clamped and fixed, and the welding operation does not need to be supported by hands, so that the heads of the two impulse pipes cannot deviate during welding, and the tight thread joint of welding can be realized. Drawings FIG. 1 is a front view of the present invention; FIG. 2 is a left side view of the present invention; Fig. 3 is a schematic cross-sectional view of the structure at A-A in fig. 1. The anti-skid device comprises a cross rod 1, a fixing lug 2, a bolt 3, a first rod 4, a second rod 5, an anti-skid pressing block 6, a connecting rod 7, a limiting block 8, a first telescopic rod 9, a second telescopic rod 10, an arc-shaped block 11, a rectangular block 12, a limiting hole 13 and a connecting rope 14. Detailed Description The following detailed description of the application is provided to illustrate the application and should not be construed as limiting the s