CN223917122U - A heterogeneous welded structure for cavity tubing - Google Patents

Abstract

This utility model relates to the field of pipe welding technology, specifically to a heterogeneous welding structure for cavity pipe fittings. It includes an auxiliary mechanism comprising a main tube connected to both ends of a heterogeneous pipe, and insertion tubes respectively inserted into the heterogeneous pipe. The insertion tubes are fixedly connected to the main tube and located at both ends of the main tube, with a mating concave surface between the main tube and the insertion tubes. It also includes a connector and a hose clamp. The connector includes a contact plate sleeved on the outer surface of the main tube to increase the weld contact area. The hose clamp is sleeved on the contact plate to limit the position of the main tube and the contact plate. By setting up the auxiliary mechanism, connector, and hose clamp, a more stable connection can be achieved by sequentially welding the contact plate and the main tube to the heterogeneous pipe using a welding machine. This design facilitates manual support by workers and fixes the two heterogeneous pipes, aiding in the welding process and improving practicality.

Description

Heterogeneous welded structure of cavity pipe fitting

Technical Field

The utility model relates to the technical field of pipe fitting welding, in particular to a cavity pipe fitting heterogeneous welding structure.

Background

Pipe fitting welding is one of the main means of pipeline connection and installation, and the welding has the advantages of high connection stability, good sealing performance, high structural strength and the like.

When the pipeline is welded, two pipe fittings of welded and fixed are different in material sometimes, welding spot adhesiveness of the pipe fittings of welded different materials is not strong, and the pipe fittings are easy to fall off, and a common solution is to increase metal strips or metal sheets and plates for auxiliary welding, so that a worker winds the metal strips at the joint of the two pipes, and the metal strips are respectively welded on the two pipes by using welding rods aiming at different metal materials.

For this purpose, we propose a cavity tube heteroweld structure.

Disclosure of utility model

The technical problem to be solved by the application is that the existing welding heterogeneous pipeline is formed by welding metal strips or metal sheets and plates between two pipes, but when the welding heterogeneous pipeline is specifically operated, a worker needs to hold the metal strips or the metal sheets and plates by one hand, and a welding gun is operated by the other hand, so that the heat of the metal strips can be transferred to the hands of the worker during welding, the hands are easy to scald, and the welding heterogeneous pipeline is inconvenient.

In order to solve the technical problems, the embodiment of the application provides a cavity pipe fitting heterogeneous welding structure which comprises an auxiliary mechanism, wherein the auxiliary mechanism comprises a main body pipe connected to two ends of a heterogeneous pipe and plug pipes respectively plugged into the heterogeneous pipe, the plug pipes are fixedly connected with the main body pipe and positioned at two ends of the main body pipe, a concave joint surface is arranged between the main body pipe and the plug pipes, the heterogeneous welding structure further comprises a connecting piece and a hose clamp, the connecting piece comprises a contact plate sleeved on the outer surface of the main body pipe and used for increasing the falling point area of welding spots, welding rods perform welding treatment along an included angle between the contact plate and the heterogeneous pipe, after the welding rods surround the edge of the contact plate, the welding rods extend along a clamping joint between the main body pipe and the heterogeneous pipes at two sides, and the hose clamp is sleeved on the contact plate and used for limiting the main body pipe and the contact plate.

In some embodiments, a plurality of contact plates are movably mounted on the main body tube, contact plates are arranged at two ends of the contact plates, and the contact plates are respectively attached to the outer surfaces of the heterogeneous tubes.

In some embodiments, the contact plate and the contact sheet are each provided with a slip-resistant film on the side facing the hetero-tube.

In some embodiments, the contact plate is provided with a plurality of fastening grooves distributed at equal intervals, and the throat hoops are correspondingly arranged in the fastening grooves.

In some embodiments, the contact plate is provided with a pair of extension plates at a central portion thereof, and further includes a fastener including a screw provided on the main body tube, the contact plate being movable in an axial direction of the screw.

In some embodiments, a screw cap is screwed on the screw rod, and a sealing film is arranged at the bottom of the screw cap.

In some embodiments, both ends of the insertion tube are provided with chamfer surfaces.

The utility model has at least the following beneficial effects:

1. Through setting up auxiliary mechanism, connecting piece and throat hoop, use the welding machine to weld contact patch and main part pipe and heterogeneous tube in proper order, can accomplish more stable connection, convenient operation, this setting is convenient for the manual support of staff to can make two heterogeneous tubes obtain fixedly, help the going on of welding work, improved the practicality;

2. Through setting up screw rod and spiro union cap for the contact plate has the flexibility, makes it be convenient for adjust the use according to the heterogeneous pipe of different thickness, and the suitability is high, and it is simple and convenient to adjust easy operation, need not with the help of the instrument is supplementary, is applicable to extensive personnel and uses, has further improved the practicality, provides convenience for welding work.

Drawings

FIG. 1 is a schematic diagram of a three-dimensional structure of an auxiliary mechanism mated with two heterogeneous tubes;

FIG. 2 is a schematic diagram of an auxiliary mechanism according to the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2 at A;

FIG. 4 is a schematic exploded perspective view of FIG. 2;

fig. 5 is a schematic structural diagram of embodiment 2 of the present utility model.

In the figure, 1, an auxiliary mechanism, 101, a main body pipe, 102, an insertion pipe, 103, a concave joint, 104, a chamfer surface, 2, a connecting piece, 201, a contact plate, 202, a contact sheet, 203, an extension plate, 204, an anti-slip film, 205, a fastening groove, 3, a fastening piece, 301, a screw rod, 302, a screw cap, 303, a sealing film and 4, and a throat hoop.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1:

Referring to fig. 1 to 4, the technical scheme provided by the utility model is that the cavity pipe fitting heterogeneous welding structure comprises an auxiliary mechanism 1, wherein the auxiliary mechanism 1 comprises a main body pipe 101 connected to two ends of the heterogeneous pipe and plug pipes 102 respectively plugged into the heterogeneous pipe, the plug pipes 102 are fixedly connected with the main body pipe 101 and positioned at two ends of the main body pipe 101, a joint concave surface 103 is arranged between the main body pipe 101 and the plug pipes 102, the heterogeneous welding structure further comprises a connecting piece 2 and a throat hoop 4, and the connecting piece 2 comprises a contact plate 201 sleeved on the outer surface of the main body pipe 101 and used for increasing the landing point area of welding spots.

During welding, the welding rod is welded along the included angle between the contact plate 201 and the heterogeneous tubes, so that the welding lines surround the edge of the contact plate 201, and then the welding rod extends along the crack between the main body tube 101 and the heterogeneous tubes on two sides.

The hose clamp 4 is sleeved on the contact plate 201 and used for limiting the main body pipe 101 and the contact plate 201, the contact plates 201 are movably mounted on the main body pipe 101, contact pieces 202 are arranged at two ends of the contact plate 201, and the contact pieces 202 are respectively attached to the outer surfaces of heterogeneous pipes.

In this embodiment, as shown in fig. 1 to 4, when in installation, the plug tube 102 is respectively inserted into two heterogeneous tubes fixed by pre-welding, the plug tube 102 is adapted to the heterogeneous tubes, the inner wall and the outer wall are mutually attached, at this time, the contact plate 201 is respectively attached to the outer wall of the heterogeneous tubes, after the throat hoop 4 is locked and fixed, the two heterogeneous tubes can be limited and fixed, then the staff respectively uses welding rods for the two heterogeneous tube materials, and sequentially welds the contact plate 202 and the main tube 101 with the heterogeneous tubes by using a welding machine, so that more stable connection can be completed, the operation is convenient, the setting is convenient for the staff to manually support, and the two heterogeneous tubes can be fixed, thereby being beneficial to the progress of welding work and improving the practicability.

In this embodiment, as shown in fig. 2 and 4, the contact plate 201 and the contact piece 202 are provided with an anti-slip film 204 on the side facing the hetero pipe, which has an anti-slip and wear-resistant effect, and is convenient to install and fix.

In this embodiment, as shown in fig. 2 and fig. 4, the contact plate 201 is provided with a plurality of fastening grooves 205 distributed at equal intervals, and the laryngeal cuff 4 is correspondingly disposed in the fastening grooves 205, which is convenient for limiting the laryngeal cuff 4, so that the laryngeal cuff 4 is prevented from displacement, and the installation stability is improved.

In this embodiment, as shown in fig. 2 and 3, the middle part of the contact plate 201 is provided with a pair of extension plates 203, and further includes a fastener 3, where the fastener 3 includes a screw 301 disposed on the main body pipe 101, the screw 301 is fixed on the main body pipe 101, the contact plate 201 can move along the axial direction of the screw 301, and holes larger than the diameter of the screw 301 are preset on the extension plates 203, which facilitates the vertical movement of the contact plate 201 on the screw 301, so that the contact plate 201 is adjusted according to the thickness of the heterogeneous pipe, flexibility is improved, and practicability is high.

In this embodiment, as shown in fig. 2 and 3, a screw cap 302 is screwed on the screw 301, a sealing film 303 is provided at the bottom of the screw cap 302, and the sealing film 303 is made of rubber, and is deformed after being extruded by the screw cap 302 and the extension plate 203, so that the connection is more compact, and the stability of the contact plate 201 is improved.

In this embodiment, as shown in fig. 2 and 3, when adjusting according to the thickness, the screw cap 302 is unscrewed anticlockwise, so that the screw cap is far away from the extension plate 203, when the extension plate 203 has enough activity space, the external contact plate 201 is stopped, and is attached to the outer surface of the heterogeneous tube, the screw cap 302 is unscrewed clockwise, so that the fixation can be completed, the contact plate 201 has flexibility, and is convenient to adjust and use according to heterogeneous tubes with different thicknesses, the applicability is high, the adjustment operation is simple and convenient, the tool is not needed to assist, the screw cap is suitable for being used by vast personnel, the practicability is further improved, and convenience is provided for welding work.

The implementation principle of the cavity pipe fitting heterogeneous welding structure is that when in installation, the plug pipe 102 is respectively inserted into two heterogeneous pipes which are fixed in advance by welding, the plug pipe 102 is matched with the heterogeneous pipes, the inner wall and the outer wall are mutually attached, at the moment, the contact plate 201 is respectively attached to the outer wall of the heterogeneous pipes, after the throat hoop 4 is locked and fixed, the two heterogeneous pipes can be limited and fixed, then a worker respectively uses welding rods for the two heterogeneous pipe materials, and the contact plate 202, the main pipe 101 and the heterogeneous pipes are sequentially welded and fixed by using a welding machine, so that more stable connection can be completed, the operation is convenient, the arrangement is convenient for the worker to manually support, the two heterogeneous pipes can be fixed, the welding work is facilitated, and the practicability is improved;

During welding, the welding rod is welded along the included angle between the contact plate 201 and the heterogeneous tubes, so that the welding lines surround the edge of the contact plate 201, and then the welding rod extends along the crack between the main body tube 101 and the heterogeneous tubes on two sides.

When adjusting, unscrewing spiro union cap 302 anticlockwise makes it keep away from extension board 203, stops after extension board 203 has enough activity space, and the contact plate 201 moves outward and makes its laminating on heterogeneous pipe surface, and clockwise unscrewing spiro union cap 302 can accomplish fixedly, and this setting makes contact plate 201 have the flexibility, makes it be convenient for adjust the use according to heterogeneous pipe of different thickness, and the suitability is high to, adjust easy operation is convenient, need not with the help of the instrument is supplementary, is applicable to extensive personnel and uses, has further improved the practicality, provides convenience for the welding work.

Example 2:

Referring to fig. 5, the present utility model provides the following technical solutions:

Unlike embodiment 1, chamfer surfaces 104 are disposed at two ends of the plug tube 102, the plug tube 102 and the chamfer surfaces 104 are located inside the heterogeneous tube, the plug tube 102 is attached to the inner wall of the heterogeneous tube, and the angle between the plug tube 102 and the inner wall of the heterogeneous tube can be reduced by the arrangement of the chamfer surfaces 104, so that the circulation rate of liquid is improved, the pipeline blockage caused by accumulation of impurities is avoided, and the practicability is improved.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made hereto without departing from the spirit and principles of the present utility model.

Claims (7)

1. The cavity pipe fitting heterogeneous welding structure comprises an auxiliary mechanism (1), and is characterized in that the auxiliary mechanism (1) comprises a main body pipe (101) connected to two ends of a heterogeneous pipe and plug-in pipes (102) respectively plugged into the heterogeneous pipe;

The splicing tube (102) is fixedly connected with the main body tube (101) and is positioned at two ends of the main body tube (101), and a concave joint surface (103) is arranged between the main body tube (101) and the splicing tube (102);

the device also comprises a connecting piece (2) and a throat hoop (4);

The connecting piece (2) comprises a contact plate (201) sleeved on the outer surface of the main body pipe (101) and is used for increasing the landing point area of a welding point;

Welding the welding rod along the included angle between the contact plate (201) and the heterogeneous tubes, enabling the welding rod to extend along the crack between the main body tube (101) and the heterogeneous tubes at two sides after the welding lines surround the edge part of the contact plate (201);

The hose clamp (4) is sleeved on the contact plate (201) and used for limiting the main body tube (101) and the contact plate (201).

2. The heterogeneous welding structure of cavity pipe fittings of claim 1, wherein a plurality of contact plates (201) are movably mounted on the main body pipe (101), contact plates (202) are arranged at two ends of the contact plates (201), and the contact plates (202) are respectively attached to the outer surfaces of heterogeneous pipes.

3. A cavity tube hetero-welding structure according to claim 2 wherein said contact plate (201) and said contact plate (202) are both provided with anti-slip films (204) on the side facing the hetero-tube.

4. The cavity pipe fitting heterogeneous welding structure according to claim 2, wherein a plurality of fastening grooves (205) which are distributed at equal intervals are formed in the contact plate (201), and the throat hoops (4) are correspondingly arranged in the fastening grooves (205).

5. A cavity tube heteroweld structure according to claim 2, wherein the middle of the contact plate (201) is provided with a pair of extension plates (203), further comprising a fastener (3), the fastener (3) comprising a screw (301) provided on the main body tube (101), the contact plate (201) being movable in the axial direction of the screw (301).

6. The cavity pipe fitting heterogeneous welding structure according to claim 5, wherein a screw cap (302) is connected to the screw rod (301) in a threaded mode, and a sealing film (303) is arranged at the bottom of the screw cap (302).

7. The heterogeneous welding structure of cavity pipe fittings according to claim 1, wherein chamfer faces (104) are arranged at two ends of the plug-in pipe (102).