Sand control screen welding loop rapid connection contact device

Abstract

A quick connection contact device for a sand control screen welding loop relates to the field of screen welding tools and comprises a brass column, a strong magnet, an insulating block, a brass rod and a red copper sleeve. One end of the strong magnet is connected with the insulating block, and the other end abuts against the sleeve through magnetic attraction force; one end of the brass column penetrates through the insulating block and the position of the brass column is adjusted according to the distance, so that the brass column is contacted with the sleeve; the brass rod is connected with one end of the brass column in a right-angle mode, the brass rod is sleeved with the red copper sleeve and can rotate in the circumferential direction of the brass rod, the electric welding loop contact is connected with the red copper sleeve, and the sleeve, the brass column, the brass rod, the red copper sleeve and the electric welding loop contact sequentially form a welding current loop. The beneficial effects of the utility model are that the connection efficiency of electric welding loop contacts is improved, and the problem of loop wire winding is avoided.

Description

Technical Field

[0001] The utility model relates to the field of screen pipe welding tooling, and in particular provides a sand-proof screen pipe welding loop quick-connection contact device. Background Art

[0002] When the screen pipe is welded to the casing, an electric welding loop needs to be formed, and the electric welding loop contacts need to be fixed at the tail end of the casing. Currently, the contacts are connected by mechanical tightening, which is inefficient. During operation, the casing cannot rotate, otherwise it will cause the loop wires to be entangled, affecting the welding efficiency.

[0003] Therefore, a quick connection contact device for the welding circuit of the sand control screen pipe was developed. Summary of the invention

[0004] The utility model aims to provide a quick connection contact device for a sand control screen pipe welding circuit, which improves the connection efficiency and avoids the problem of circuit wire winding.

[0005] The technical solution of the utility model is:

[0006] A sand control screen welding circuit quick connection contact device comprises a brass column, a strong magnet, an insulating block, a brass rod, and a red copper sleeve; one end of the strong magnet is connected to the insulating block, and the other end is pressed against the casing by magnetic attraction; one end of the brass column passes through the insulating block and the position of the brass column is adjusted according to the distance so that the brass column contacts the casing; the brass rod is connected to one end of the brass column at a right angle, the red copper sleeve is sleeved on the brass rod and can rotate along the circumferential direction of the brass rod, the electric welding circuit contact is connected to the red copper sleeve, and the casing, the brass column, the brass rod, the red copper sleeve, and the electric welding circuit contact sequentially form a welding current circuit;

[0007] Further, the position of the brass column is adjusted by the following structure:

[0008] The insulating block is provided with a threaded hole penetrating the insulating block, and the brass column is provided with threads all around, and the position of the brass column is further adjusted by twisting the brass column so that the brass column contacts the sleeve;

[0009] Or the insulating block is provided with a hole that passes through the insulating block, the brass column is provided with threads, one end of the brass column is covered with a spring and passes through the hole on the insulating block, and a nut is screwed around the brass column. At this time, one end of the spring is restricted by the end cap of the brass column, and the other end is against one end of the insulating block. The elastic action of the spring makes the end cap of the brass column against the sleeve, and the nut limits the extension length of the spring to further make the end cap against the sleeve; by twisting the nut, the protruding length of the brass column can be adjusted to further adjust the distance between the end cap and the insulating block;

[0010] Furthermore, the two strong magnets are fixed to the insulating block by bolts; the end cap is screwed to the front end of the brass column by threads;

[0011] Furthermore, at one end of the strong magnet in contact with the sleeve, a circular suction cup is provided around the strong magnet;

[0012] Further, the brass rod is vertically connected to the brass column by bolts;

[0013] The bottom of the U-shaped straightening block is fixed to the insulating block by bolts, and the brass rod is restricted in the U-shaped straightening block and cannot rotate along the brass column;

[0014] Furthermore, the fixing method of the straightening block and the insulating block is as follows: the insulating block is provided with a hole penetrating the insulating block, and a bolt is passed through the U-shaped hole on the straightening block and the hole on the insulating block in sequence, and then a nut is screwed on to fix the straightening block on the insulating block;

[0015] A washer with a diameter greater than that of the red copper sleeve is provided at one end of the brass rod, and the washer is fixed to one end of the red copper sleeve by a screw and limits the red copper sleeve from rotating on the brass rod, and the screw and the washer prevent the red copper sleeve from slipping off the brass rod;

[0016] Furthermore, the red copper sleeve includes a cylindrical connecting tube and a sheet-shaped connecting piece, the connecting tube is inserted into the brass rod, the connecting tube and the connecting piece are connected in a T-shape, a round hole is provided on the connecting piece, the welding circuit contact is connected to the connecting piece, the welding circuit contact can be an electric wire, the electric wire is wound on the round hole; or the welding circuit contact is an electric wire and a copper sheet connected to the front end of the electric wire, the copper sheet and the round hole are connected by screws passing through the two and then screwing on a nut;

[0017] The advantages and positive effects of the utility model are:

[0018] The strong magnet is attracted to the sleeve by magnetic attraction. At this time, the sleeve, brass column, brass rod, red copper sleeve and welding circuit contact form a welding current loop, so the subsequent welding work can be carried out. Therefore, the connection process is fast, simple, time-saving and labor-saving.

[0019] The sleeve can rotate. During the rotation of the sleeve, the red copper sleeve is sleeved on the brass rod and can rotate along the circumferential direction of the brass rod. Therefore, during the rotation, the T-shaped red copper sleeve will not rotate due to gravity, and only the brass rod will rotate. Therefore, the wire will not be entangled, so the welding efficiency is high;

[0020] Due to the elasticity of the spring, the contact point of the brass column will always be against the sleeve, and there will be no over-contact. By turning the nut, the length of the brass column can be adjusted to further adjust the distance between the end cap and the insulating block. The end cap is screwed onto the front end of the brass column through threads, and it is easy to replace when the end cap is worn;

[0021] Two strong magnets are fixed to the insulating block by bolts, which makes it easy to remove the strong magnets;

[0022] The strong magnet is surrounded by a circular suction cup, so the sleeve is more firmly connected to the strong magnet;

[0023] The brass rod and the brass column are vertically connected by bolts, which is convenient for disassembly and assembly;

[0024] The brass sleeve will not swing randomly because it is limited by the straightening block.

[0025] The screws and washers prevent the red copper sleeve from slipping off the brass rod;

[0026] Due to gravity, the connection piece of the T-shaped red copper sleeve is always vertically downward, so the wire will not be tangled. The wire is wrapped around the round hole, so it is easy to connect, or the contact of the welding circuit is the wire and the copper piece connected to the front end of the wire. The copper piece and the round hole are connected by screws passing through the two and then screwed on with nuts. It is not only convenient to connect but also more secure. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the quick connection contact device of the sand control screen welding circuit.

[0028] In the figure:

[0029] 1. Brass column 2. Strong magnet 3. Insulation block

[0030] 4. Brass rod 5. Red copper sleeve 6. Nut

[0031] 7. Straightening block 8. Gasket 5-1. Connecting pipe

[0032] 5-2, connecting piece 1-1, end cap 9, spring

[0033] 2-1, suction cup 5-3, round hole DETAILED DESCRIPTION

[0034] A sand control screen welding circuit quick connection contact device, such as Figure 1 The structure shown in the figure includes a brass column 1, a strong magnet 2, an insulating block 3, a brass rod 4, and a red copper sleeve 5;

[0035] The two strong magnets 2 are fixed on the insulating block 3 by bolts. The end of the strong magnet 2 in contact with the sleeve is provided with a circular suction cup 2-1 around the strong magnet 2. The strong magnet 2 and the circular suction cup 2-1 are sucked on the sleeve by magnetic attraction.

[0036] One end of the brass column 1 passes through the insulating block 3, and the position of the brass column 1 is adjusted by the following structure: the insulating block 3 is provided with a hole passing through the insulating block 3, and the brass column 1 is provided with threads around it. After the spring 9 is put on one end of the brass column 1, it passes through the hole on the insulating block 3, and the nut 6 is screwed around the brass column 1. At this time, one end of the spring 9 is restricted by the end cap 1-1 of the brass column 1, and the other end is against one end of the insulating block 3. The elastic action of the spring 9 makes the end cap 1-1 of the brass column 1 against the sleeve, and the nut 6 limits the telescopic length of the spring 9 to further make the end cap 1-1 against the sleeve; by twisting the nut 6, the protruding length of the brass column 1 can be adjusted to further adjust the distance between the end cap 1-1 and the insulating block 3;

[0037] The insulating block 3 is provided with a hole penetrating the insulating block 3, and the bolts are sequentially passed through the holes on the U-shaped straightening block 7 and the holes on the insulating block 3, and then the nuts 6 are screwed on, and the bottom of the U-shaped straightening block 7 is fixed to the insulating block 3 by bolts; the brass rod 4 is vertically connected to the brass column 1 by bolts; the brass rod 4 is restricted in the U-shaped straightening block 7 and cannot rotate along the brass column 1;

[0038] The red copper sleeve 5 includes a cylindrical connecting tube 5-1 and a sheet-like connecting piece 5-2. The connecting tube 5-1 is inserted into the brass rod 4 and can rotate along the circumferential direction of the brass rod 4. The connecting tube 5-1 is connected to the connecting piece 5-2 in a T-shape. A circular hole 5-3 is provided on the connecting piece 5-2. The welding circuit contact is connected to the connecting piece 5-2. The welding circuit contact is a copper sheet connected to the wire and the front end of the wire. The copper sheet and the circular hole 5-3 are connected by screwing a screw through the two and then screwing on a nut 6. At this time, the sleeve, brass column 1, brass rod 4, red copper sleeve 5, and welding circuit contact form a welding current circuit in sequence.

[0039] One end of the brass rod 4 is provided with a gasket 8 having a diameter greater than that of the red copper sleeve 5. The gasket 8 is fixed to one end of the red copper sleeve 5 by a screw and limits the rotation of the red copper sleeve 5 on the brass rod 4. The screw and the gasket 8 prevent the red copper sleeve 5 from slipping off the brass rod 4.

[0040] Embodiment 1: Before welding, the sand screen welding circuit quick connection contact device is sucked onto the inner wall of the casing tail end. At this time, the strong magnet 2 and the circular suction cup 2-1 are sucked onto the casing by magnetic attraction. Under the thrust of the spring 9, the brass column 1 is tightly pressed onto the inner wall of the casing. The front end of the wire is connected to the copper sheet. The screw passes through the copper sheet and the circular hole 5-3 and then the nut 6 is screwed on. At this time, the casing, brass column 1, brass rod 4, red copper sleeve 5, and welding circuit contacts form a welding current circuit in sequence.

[0041] After welding begins, the casing starts to rotate, and the sand screen welding circuit quick connection contact device also rotates with the casing. Since the red copper sleeve 5 can rotate on the brass rod 4, even if the brass rod 4 rotates with the casing, the connecting piece 5-2 in the red copper sleeve 5 is always vertically downward, so that the wire will not be entangled. At the same time, the brass sleeve will not swing randomly due to the limit of the straightening block 7. When the casing is welded, the device can be easily and quickly picked up and placed in the next casing to continue continuous production.

[0042] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A quick-connect contact device for a sand control screen welding circuit, characterized in that: It includes a brass column, a strong magnet, an insulating block, a brass rod, and a red copper sleeve; one end of the strong magnet is connected to the insulating block, and the other end is pressed against the sleeve by magnetic attraction; one end of the brass column passes through the insulating block and the position of the brass column is adjusted according to the distance so that the brass column contacts the sleeve; the brass rod is connected to one end of the brass column at a right angle, the red copper sleeve is sleeved on the brass rod and can rotate along the circumferential direction of the brass rod, the welding circuit contact is connected to the red copper sleeve, and the sleeve, brass column, brass rod, red copper sleeve, and welding circuit contact sequentially form a welding current circuit.

2. A sand control screen welding circuit quick connection contact device according to claim 1, characterized in that: The position of the brass column is adjusted by the following structure: a threaded hole penetrating the insulating block is provided on the insulating block, and threads are provided around the brass column. The position of the brass column is further adjusted by twisting the brass column so that the brass column contacts the sleeve.

3. A sand control screen welding circuit quick connection contact device according to claim 1, characterized in that: The position of the brass column is adjusted by the following structure: or the insulating block is provided with a hole that passes through the insulating block, and the brass column is provided with threads around it. After one end of the brass column is covered with a spring, it passes through the hole on the insulating block, and a nut is screwed around the brass column. At this time, one end of the spring is restricted by the end cap of the brass column, and the other end abuts against one end of the insulating block. The elastic action of the spring makes the end cap of the brass column abut against the sleeve, and the nut limits the telescopic length of the spring to further make the end cap abut against the sleeve; by twisting the nut, the protruding length of the brass column can be adjusted to further adjust the distance between the end cap and the insulating block.

4. A sand control screen welding circuit quick connection contact device according to claim 2 or 3, characterized in that: The two strong magnets are fixed on the insulating block by bolts.

5. A sand control screen welding circuit quick connection contact device according to claim 4, characterized in that: The strong magnet is in contact with one end of the sleeve, and a circular suction cup is arranged around the strong magnet.

6. A sand control screen welding circuit quick connection contact device according to claim 5, characterized in that: The brass rod is vertically connected to the brass column through bolts.

7. A sand control screen welding circuit quick connection contact device according to claim 6, characterized in that: The bottom of the U-shaped straightening block is fixed to the insulating block by bolts, and the brass rod is restricted in the U-shaped straightening block and cannot rotate along the brass column.

8. A sand control screen welding circuit quick connection contact device according to claim 7, characterized in that: The fixing method of the straightening block and the insulating block is as follows: a hole penetrating the insulating block is provided on the insulating block, and a bolt is passed through the U-shaped hole on the straightening block and the hole on the insulating block in sequence, and then a nut is screwed on to fix the straightening block on the insulating block.

9. A sand control screen welding circuit quick connection contact device according to claim 1 or 2 or 3 or 5 or 6 or 7 or 8, characterized in that: One end of the brass rod is provided with a gasket with a diameter greater than that of the red copper sleeve. The gasket is fixed to one end of the red copper sleeve by a screw and limits the rotation of the red copper sleeve on the brass rod. The screw and the gasket prevent the red copper sleeve from slipping off the brass rod.

10. A sand control screen welding circuit quick connection contact device according to claim 9, characterized in that: The red copper sleeve includes a cylindrical connecting tube and a sheet-like connecting piece. The connecting tube is inserted into the brass rod. The connecting tube and the connecting piece are connected in a T shape. A round hole is provided on the connecting piece. The welding circuit contact is connected to the connecting piece. The welding circuit contact can be an electric wire, and the electric wire is wound on the round hole; or the welding circuit contact is an electric wire and a copper sheet connected to the front end of the electric wire. The copper sheet and the round hole are connected by screws passing through the two and then screwing on a nut.

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