Gas pipeline welding alignment fastening device

Abstract

The utility model discloses a fuel gas pipeline welding alignment fastening device which comprises a seat groove (2) with an opening on one side, a fastening frame (3) and a fastening bolt (4) arranged corresponding to the opening, one end of the fastening frame (3) is fixedly connected with the seat groove (2), and the other end of the fastening frame (3) is in threaded connection with the fastening bolt (4). The gas pipeline welding alignment fastening device is simple in structure and convenient to manufacture, can be repeatedly used, ensures effective fixation and accurate alignment when two gas steel pipes are welded, and can greatly improve the construction quality when the gas steel pipes are welded. And the situations of joint dislocation, welding seam cracking and the like are effectively avoided, so that gas leakage and explosion accidents are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of gas pipeline installation engineering construction, in particular to a gas pipeline welding alignment fastening device. Background Art

[0002] During the construction of gas pipeline projects, metal pipes often need to be welded. If the alignment is inaccurate or not fixed, quality problems such as misalignment or fracture at the weld will occur during welding. In serious cases, gas leakage may occur, resulting in fire and explosion accidents. Therefore, the construction quality of the weld is particularly important. In the traditional method, workers directly use a steel bar to fix the two steel pipes together before welding, or arrange a worker to hold the two steel pipes before welding. The first method affects the quality of the pipe body, and the second method cannot guarantee the construction quality and increases labor costs.

[0003] At present, there are two types of gas pipeline welding and fastening devices in engineering construction:

[0004] The first method is to use two bench vises to clamp two steel pipes and then perform welding operations. This method is too cumbersome, and the cost of the bench vise is high and inconvenient.

[0005] The second method is to purchase a ready-made fixture, which is easy to use but expensive and uneconomical.

[0006] Therefore, a gas pipeline welding alignment fastening device is needed to solve the above technical problems. Utility Model Content

[0007] The utility model aims to solve the shortcomings in the prior art and provides a gas pipeline welding alignment and fastening device.

[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0009] A gas pipeline welding alignment fastening device comprises a seat groove with an opening on one side, a fastening frame and a fastening bolt arranged corresponding to the opening, one end of the fastening frame is fixedly connected to the seat groove, and the other end of the fastening frame is threadedly connected to the fastening bolt.

[0010] Furthermore, it also includes a base, the bottom of the seat groove is fixedly connected to the base, and the side of the seat groove away from the base is provided with an opening;

[0011] One end of the fastening frame is fixedly connected to the base, and the other end of the fastening frame is provided with a through hole, and the through hole is directly opposite to the opening of the seat groove;

[0012] The fastening bolt is arranged in the through hole and is threadedly connected thereto.

[0013] The base is used to facilitate the fixing of the seat groove and the fastening frame, and is convenient for operation when fixing the gas pipeline.

[0014] Furthermore, the seat groove is angle steel, which is easy to obtain and has low cost.

[0015] Furthermore, the cross section of the seat groove is V-shaped. The V-shaped structure facilitates the positioning and fixing of the gas pipeline.

[0016] Furthermore, a pressure foot is provided at one end of the fastening bolt close to the seat groove, so as to increase the contact area of ​​the fastening bolt with the gas pipeline.

[0017] Furthermore, an elastic pad is arranged on one side of the presser foot close to the seat groove, and the elastic pad is conducive to fixing the gas pipeline.

[0018] Furthermore, a handle is provided at one end of the fastening bolt close to the seat groove, so that the fastening bolt can be rotated conveniently using the handle.

[0019] Furthermore, the number of the fastening frames and the fastening bolts are both two. Each set of fastening frames and fastening bolts is used to fix the gas steel pipe respectively.

[0020] Furthermore, the fastening frame is ∏-shaped, with two legs respectively fixed on both sides of the seat groove, and the middle cross bar is arranged just above the seat groove opening to facilitate the fastening bolts to be fixed.

[0021] Furthermore, the cross section of the seat groove has the same size and shape from one end to the other, so that two gas steel pipes can be effectively fixed and accurately aligned when welded.

[0022] Beneficial effects: The gas pipeline welding alignment fastening device of the utility model has a simple structure, is easy to manufacture, can be used repeatedly, ensures effective fixation and accurate alignment when two gas steel pipes are welded, and can greatly improve the construction quality when welding gas steel pipes. It effectively avoids the occurrence of joint dislocation and weld cracking, thereby avoiding the occurrence of gas leakage and explosion accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the use of the gas pipeline welding alignment fastening device of the utility model;

[0024] Figure 2 It is a three-dimensional diagram of the gas pipeline welding alignment fastening device of the utility model;

[0025] Figure 3 It is a three-dimensional diagram of the base of the gas pipeline welding alignment fastening device of the utility model;

[0026] Figure 4 It is a three-dimensional diagram of the seat groove of the gas pipeline welding alignment fastening device of the utility model;

[0027] Figure 5 It is a three-dimensional diagram of the fastening frame of the gas pipeline welding alignment fastening device of the utility model;

[0028] Figure 6 It is a three-dimensional diagram of the fastening bolts of the gas pipeline welding alignment fastening device of the utility model;

[0029] Figure 7 It is a three-dimensional diagram of the handle of the gas pipeline welding alignment fastening device of the utility model;

[0030] Figure 8 It is a three-dimensional diagram of the presser foot of the gas pipeline welding alignment fastening device of the utility model;

[0031] Fig. 9 It is a stereoscopic diagram of bolts of a gas pipeline welding alignment fastening device of the utility model.

[0032] Legend: 1. Base; 2. Seat shaft; 3. Fastening frame; 4. Fastening bolt; 41. Handle; 42. Presser foot; 43. Screw. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] See also Figures 1 to 9 The gas pipeline welding alignment fastening device comprises a seat groove 2 with an opening on one side, a fastening frame 3 and a fastening bolt 4 corresponding to the opening, one end of the fastening frame 3 is fixedly connected to the seat groove 2, and the other end of the fastening frame 3 is threadedly connected to the fastening bolt 4. The seat groove 2 and the fastening bolt 4 are used to limit and fix the gas pipeline, so as to facilitate welding.

[0035] Specifically, it also includes a base 1, the bottom of the seat groove 2 is fixedly connected to the base 1, and the seat groove 2 is provided with an opening on the side away from the base 1. One end of the fastening frame 3 is fixedly connected to the base 1, and the other end of the fastening frame 3 is provided with a through hole, and the through hole is directly opposite to the opening of the seat groove 2. Preferably, the fastening frame 3 is ∏-shaped. The two legs are respectively fixed on both sides of the seat groove, and the middle cross bar is arranged directly above the opening of the seat groove, which is convenient for fixing the fastening bolts. The fastening bolt 4 is arranged in the through hole and threadedly connected thereto. The use of the base facilitates the fixing of the seat groove and the fastening frame, and facilitates the operation when fixing the gas pipeline. Specifically, the base 1 and the seat groove 2 are connected by welding. The fastening frame 3 and the base 1 are also connected by welding.

[0036] Preferably, the seat groove 2 is an angle steel. The material is easy to obtain and the cost is low. The cross section of the seat groove 2 in the utility model is the same in size and shape from one end to the other. Two gas steel pipes can be effectively fixed when welded, and the alignment is accurate. The cross section of the seat groove 2 is V-shaped. The V-shaped structure facilitates the limit fixation of the gas pipeline.

[0037] Preferably, a presser foot 42 is provided at one end of the fastening bolt 4 close to the seat groove 2. The presser foot is used to increase the contact area of ​​the fastening bolt with the gas pipeline. Preferably, an elastic pad is provided on one side of the presser foot 42 close to the seat groove 2. The elastic pad is conducive to fixing the gas pipeline. Preferably, a handle 41 is provided at one end of the fastening bolt 4 away from the seat groove 2. The handle is convenient for rotating the fastening bolt.

[0038] Preferably, the number of the fastening frame 3 and the number of the fastening bolts 4 are both two. The two sets of fastening frames and fastening bolts are used to fix two gas steel pipes respectively.

[0039] Manufacturing method: The gas pipeline welding alignment and fastening device of the utility model is made of metal, the base 1 is made of steel plate, the seat groove 2 is made of angle steel, and the opening is upward; the fastening frame 3 is made of small square steel and is vertically welded on the bottom plate 1; the fastening bolt 4 is welded by a handle 41, a screw rod 43 and a pressure foot 42. The handle 41 and the screw rod 43 are welded first, and then the screw 43 is installed on the fastening frame 3. After installation, the pressure foot 42 is vertically welded to the other end of the screw rod 43.

[0040] The seat groove 2 is centrally welded on the bottom plate 1, and the fastening frame 3 is processed into a ∏ shape, with a threaded through hole just above, the diameter of which matches the screw 43. There are two sets of fastening frames 3 and fastening bolts 4 on the entire device, which are arranged symmetrically.

[0041] The gas pipeline welding alignment fastening device of the utility model has a simple structure, is easy to manufacture, has easy-to-obtain materials, is low in cost, can be repeatedly used, ensures effective fixation and accurate alignment when two gas steel pipes are welded, and can greatly improve the construction quality when welding gas steel pipes. It avoids the occurrence of joint misalignment and weld cracking, thereby avoiding gas leakage and explosion accidents.

Claims

1. A gas pipeline welding alignment fastening device, characterized in that: It comprises a seat groove (2) with an opening on one side, a fastening frame (3) and a fastening bolt (4) arranged corresponding to the opening, wherein one end of the fastening frame (3) is fixedly connected to the seat groove (2), and the other end of the fastening frame (3) is threadedly connected to the fastening bolt (4).

2. The gas pipeline welding alignment and fastening device according to claim 1 is characterized in that: It also comprises a base (1), the bottom of the seat groove (2) being fixedly connected to the base (1), and an opening being arranged on a side of the seat groove (2) away from the base (1); One end of the fastening frame (3) is fixedly connected to the base (1), and the other end of the fastening frame (3) is provided with a through hole, the through hole facing the opening of the seat groove (2); The fastening bolt (4) is arranged in the through hole and is threadedly connected thereto.

3. The gas pipeline welding alignment and fastening device according to claim 1 is characterized in that: The seat groove (2) is an angle steel.

4. The gas pipeline welding alignment and fastening device according to claim 1 is characterized in that: The cross section of the seat groove (2) is V-shaped.

5. The gas pipeline welding alignment and fastening device according to claim 1 is characterized in that: A pressure foot (42) is provided at one end of the fastening bolt (4) close to the seat groove (2).

6. The gas pipeline welding alignment and fastening device according to claim 5 is characterized in that: An elastic pad is provided on one side of the presser foot (42) close to the seat groove (2).

7. The gas pipeline welding alignment and fastening device according to claim 1 is characterized in that: A handle (41) is provided at one end of the fastening bolt (4) close to the seat groove (2).

8. The gas pipeline welding alignment and fastening device according to claim 1 is characterized in that: The number of the fastening frame (3) and the number of the fastening bolts (4) are both two.

9. The gas pipeline welding alignment and fastening device according to claim 1, characterized in that: The fastening frame (3) is ∏-shaped.

10. The gas pipeline welding alignment and fastening device according to claim 1, characterized in that: The cross section of the seat groove (2) is the same in size and shape from one end to the other.

Images