Argon blowing connector facilitating butt joint of pipelines

Abstract

The utility model discloses an argon blowing joint convenient for pipeline butt joint, which comprises a joint main body, the bottom of the joint main body is rotatably connected with a rotating head, the rotating head is provided with an exhaust port and a gas inlet interface, the exhaust port is communicated with the joint main body, the gas inlet interface is connected with a connector arranged at the end part of a pipeline, and the connector is connected with the joint main body. The connector body is connected with a positioning mechanism used for synchronously positioning the rotating head and the connector, the positioning mechanism comprises a rotating sleeve, a pressing sleeve, a positioning frame and a plurality of springs, the rotating sleeve is used for driving the pressing sleeve to descend, the springs are used for driving the pressing sleeve to move upwards, the positioning frame is connected to the pressing sleeve, and the positioning frame is connected with the connector. The position of the air inlet connector can be changed, the air inlet connector can be conveniently connected with a pipeline at the corresponding position, adjustment is flexible according to actual requirements, applicability is high, and meanwhile stability and tightness of connection between the rotating head and the connector body and connection between the pipeline and the rotating head are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of argon blowing joint, concretely to an argon blowing joint convenient for pipeline butt joint. BACKGROUND

[0002] The steel ladle bottom argon blowing process is a very important link in the steelmaking process, the argon gas is blown into the molten steel in the steel ladle, and is dispersed in the molten steel in the form of bubbles and floats up. The surrounding molten steel is driven by the buoyancy, so that the molten steel flows in the steel ladle, thereby accelerating the melting of the alloy, solvent and the like added in the molten steel, promoting the uniformity of the composition and temperature of the molten steel and the floating of the inclusions, removing the non-metallic inclusions and harmful gas in the steel, and achieving the purpose of refining the molten steel. The argon blowing joint is one of the important components in the steelmaking process, and is mainly used for blowing argon in the molten steel refining process.

[0003] The existing argon blowing joint is fixedly arranged at the position of the pipeline butt joint after installation, that is, the position is unchanged, which is inconvenient for connecting with the pipelines at different positions, cannot be flexibly adjusted according to the actual site environment, and the applicability needs to be improved. UTILITY MODEL CONTENT

[0004] The utility model discloses a kind of argon blowing joints convenient for pipeline butt joint, can change the position where air inlet is located, it is convenient to connect with the pipeline at corresponding position, flexibly adjust according to actual demand, with the advantages such as strong applicability, solve the problem raised in the above background technique.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of argon blowing joint convenient for pipeline butt joint, including joint main part, the bottom of the joint main part is rotatably connected with rotary head, the rotary head is provided with exhaust port, air inlet, the exhaust port is communicated with joint main part, the air inlet is connected with the connecting head arranged at the end of pipeline, the joint main part is connected with the positioning mechanism for rotary head, connecting head synchronous positioning, the positioning mechanism includes rotating sleeve, pressing sleeve, positioning frame, multiple springs, the rotating sleeve is used to drive pressing sleeve to descend, the pressing sleeve is pressed to rotary head, the spring is used to drive pressing sleeve to move up, the positioning frame is connected to pressing sleeve, and positioning frame is connected with connecting head.

[0006] Preferably, a sealing ring one is arranged in the joint main part, and the exhaust port is pressed to the sealing ring one.

[0007] Preferably, the positioning mechanism further includes multiple protrusions, multiple sliding grooves, multiple sliding blocks and an inclined surface, the protrusions are connected to the outer side of the rotating sleeve, the sliding blocks are slidingly connected to the sliding grooves, and the sliding blocks are fixedly connected to the pressing sleeve, and the inclined surface is arranged in the positioning frame.

[0008] Preferably, the spring is located in the sliding slot, and two ends of the spring are connected with the sliding block and the joint body.

[0009] Preferably, the rotating sleeve is threadedly connected with the joint body.

[0010] Preferably, the top of the rotating head is connected with a friction plate, and the bottom of the pressing sleeve is tightly pressed against the friction plate.

[0011] Preferably, the friction plate is of an annular structure, and the top of the friction plate is provided with a friction surface.

[0012] Preferably, the air inlet is provided with a sealing surface and a sealing ring II, and the connecting head is connected with the sealing surface and the sealing ring II.

[0013] Compared with the prior art, the utility model has the advantages that: the positioning mechanism is arranged, the rotating head can be driven to rotate at multiple angles, the position of the air inlet can be changed, the pipeline can be conveniently connected with the corresponding position, the pipeline can be flexibly adjusted according to actual requirements, and the applicability is high. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a perspective view of the utility model;

[0015] Fig. 2 It is a joint body structure schematic view of the utility model;

[0016] Fig. 3 It is a joint body and rotating head connecting structure schematic view of the utility model;

[0017] Fig. 4 It is a connecting head and rotating head connecting structure schematic view of the utility model.

[0018] In the drawing: 1, joint body; 2, rotating sleeve; 3, protrusion; 4, pressing sleeve; 5, positioning frame; 6, pipeline; 7, rotating head; 8, connecting head; 9, friction plate; 10, sliding slot; 11, spring; 12, sliding block; 13, sealing ring I; 14, exhaust port; 15, sealing ring II; 16, sealing surface; 17, air inlet; 18, inclined surface; 19, positioning column. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present utility model.

[0020] Please refer to Figs. 1 to 4 The present utility model provides a kind of argon blowing joint convenient for pipeline butt joint, including joint main body 1, the top of joint main body 1 is connected with ladle bottom, pipeline 6 is sent to gas into rotary head 7, immediately through joint main body 1 is sent to ladle, remove non-metallic inclusion and harmful gas in steel, reach the purpose of refining liquid steel.Joint main body 1 bottom is rotatably connected with rotary head 7, rotary head 7 can rotate 360 °, rotary head 7 is provided with exhaust port 14, gas inlet interface 17, exhaust port 14 is communicated with joint main body 1, gas inlet interface 17 is connected with the connecting head 8 of pipeline 6 end portion setting.The positioning mechanism for rotary head 7, connecting head 8 synchronous positioning is connected with joint main body 1, and the positioning mechanism includes rotating sleeve 2, pressing sleeve 4, positioning frame 5, multiple springs 11, rotating sleeve 2 is used to drive pressing sleeve 4 to descend, pressing sleeve 4 is pressed in rotary head 7, spring 11 is used to drive pressing sleeve 4 to move up, positioning frame 5 is connected to pressing sleeve 4, and positioning frame 5 is connected with connecting head 8.

[0021] Rotary head 7 is driven to rotate, changes the position where gas inlet interface 17 is located, so that it is aligned with corresponding pipeline 6, immediately connecting head 8 is connected with gas inlet interface 17.Immediately rotating rotating sleeve 2 drives pressing sleeve 4 to descend, synchronous drive positioning frame 5 to descend, pressing sleeve 4 is pressed in friction plate 9, and positioning frame 5 is pressed in connecting head 8, can realize the synchronous positioning of rotary head 7, connecting head 8, improve the stability and tightness of rotary head 7 and joint main body 1 and pipeline 6 and rotary head 7 connection.

[0022] Sealing ring one 13 is arranged in joint main body 1, and exhaust port 14 is pressed in sealing ring one 13.When pressing sleeve 4 is pressed in friction plate 9, it can not only realize the positioning of rotary head 7, but also apply downward pressure to rotary head 7, i.e.

[0023] The positioning mechanism further comprises a plurality of protrusions 3, a plurality of sliding grooves 10, a plurality of sliding blocks 12, and an inclined surface 18, the protrusions 3 are connected to the outer side of the rotating sleeve 2, the sliding blocks 12 are slidingly connected to the sliding grooves 10, and the sliding blocks 12 are fixedly connected to the pressing sleeve 4, and the inclined surface 18 is arranged on the positioning frame 5. The protrusions 3 are provided in three, and the adjacent angles are 120°. The sliding grooves 10 and the sliding blocks 12 are also provided in three. When the rotating sleeve 2 rotates, the protrusions 3 can increase the friction force with the hand, facilitating the operation of the rotating sleeve 2. When the pressing sleeve 4 rises and falls, the sliding blocks 12 slide in the corresponding sliding grooves 10, which can guide the pressing sleeve 4 and improve the stability of the pressing sleeve 4. When the pressing sleeve 4 falls, the spring 11 is gradually elongated, and an upward pulling force is applied to the pressing sleeve 4. When the rotating sleeve 2 moves upward, the elongated spring 11 can drive the three sliding blocks 12 to move upward, and the sliding blocks 12 drive the pressing sleeve 4 to move upward, so that the pressing sleeve 4 is separated from the friction plate 9, the rotating head 7 is loosened, and at the same time, the pressing sleeve 4 drives the positioning frame 5 to move upward, the connecting head 8 is loosened, the rotating head 7 is adjusted again, and the utility is strong.

[0024] The spring 11 is located in the sliding groove 10, and the two ends of the spring 11 are connected to the sliding blocks 12 and the joint body 1.

[0025] The rotating sleeve 2 is threadedly connected to the joint body 1, and the rotating sleeve 2 is reciprocated along the height direction of the joint body 1.

[0026] The top of the rotating head 7 is fixedly connected to the friction plate 9, the friction plate 9 has an annular structure, and the top of the friction plate 9 is provided with a friction surface, which can increase the friction force between the pressing sleeve 4 and the friction plate 9, and can achieve good limiting and fixing of the rotating head 7.

[0027] The sealing surface 16 and the sealing ring 15 are arranged in the air inlet 17, the connecting head 8 is connected to the sealing surface 16 and the sealing ring 15, and the sealing surface 16 and the sealing ring 15 are arranged to improve the sealing effect of the air inlet 17 and the connecting head 8, and prevent leakage.

[0028] The connecting head 8 is connected to three positioning columns 19, the positioning columns 19 are matched with the positioning grooves on the outer side of the rotating head 7, the positioning columns 19 are connected to the positioning grooves when the connecting head 8 is connected to the air inlet 17, which can achieve preliminary limiting of the connecting head 8 and prevent rotation. In combination with the use of the positioning frame 5, the connecting head 8 can be well limited and fixed, and the stability and tightness of the connection between the connecting head 8 and the rotating head 7 are improved.

[0029] Working principle: drive rotating head 7 rotation, change the position of air inlet interface 17, convenient and corresponding position pipe 6 butt joint, according to the actual installation demand flexible adjustment, strong applicability. When air inlet interface 17 is in the appropriate position, connecting head 8 is connected with air inlet interface 17, and positioning column 19 is inserted into the positioning slot outside rotating head 7, so that the preliminary location of connecting head 8 is realized. Then rotate rotating sleeve 2 to make it descend, rotating sleeve 2 drives pressing sleeve 4 to descend, and three sliding blocks 12 are lowered synchronously, spring 11 is gradually stretched, and positioning frame 5 is also lowered synchronously. Until pressing sleeve 4 is pressed on friction plate 9, rotating sleeve 2 stops rotating, the location of rotating head 7 is fixed, and downward pressure is applied to rotating head 7, so that exhaust port 14 is pressed on sealing ring one 13, the tightness of rotating head 7 and joint body 1 is improved. At the same time, positioning frame 5 is pressed on connecting head 8, the location of connecting head 8 is fixed, and the tightness of connecting head 8 and rotating head 7 is improved by cooperating with the use of sealing ring two 15 and sealing surface 16. When the position of rotating head 7 is adjusted again, rotating sleeve 2 is rotated to make it move upward, the stretched spring 11 drives pressing sleeve 4 to move upward, positioning frame 5 is driven upward synchronously, pressing sleeve 4 is separated from friction plate 9, the loosening of rotating head 7 is realized, positioning frame 5 is separated from connecting head 8, the loosening of connecting head 8 is realized, and then connecting head 8 is separated from rotating head 7, so that the position of rotating head 7 is adjusted again, and the practicability is strong.

[0030] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An argon blow joint for facilitating pipe butt joining, comprising a joint body (1), characterized in that, The bottom of the joint body (1) is rotationally connected with a rotating head (7), the rotating head (7) is provided with an exhaust port (14) and an air inlet interface (17), the exhaust port (14) is communicated with the joint body (1), the air inlet interface (17) is connected with a connecting head (8) arranged at the end of the pipeline (6), the joint body (1) is connected with a positioning mechanism for synchronous positioning of the rotating head (7) and the connecting head (8), the positioning mechanism comprises a rotating sleeve (2), a pressing sleeve (4), a positioning frame (5) and a plurality of springs (11), the rotating sleeve (2) is used for driving the pressing sleeve (4) to descend, the pressing sleeve (4) is pressed against the rotating head (7), the spring (11) is used for driving the pressing sleeve (4) to move upwards, the positioning frame (5) is connected with the pressing sleeve (4), and the positioning frame (5) is connected with the connecting head (8).

2. The argon purge fitting for facilitating pipe butt joining according to claim 1, wherein, The joint body (1) is provided with a sealing ring I (13), and the exhaust port (14) is pressed against the sealing ring I (13).

3. The argon purge fitting for facilitating pipe butt joining of claim 1, wherein, The positioning mechanism further comprises a plurality of protrusions (3), a plurality of sliding grooves (10), a plurality of sliding blocks (12) and an inclined surface (18), the protrusions (3) are connected to the outer side of the rotating sleeve (2), the sliding blocks (12) are slidingly connected to the sliding grooves (10), the sliding blocks (12) are fixedly connected with the pressing sleeve (4), and the inclined surface (18) is arranged on the positioning frame (5).

4. An argon purge fitting for facilitating the mating of pipes according to claim 3, wherein, The spring (11) is located in the sliding groove (10), and the two ends of the spring (11) are connected with the sliding block (12) and the joint body (1).

5. The argon purge fitting of claim 1, wherein, The rotating sleeve (2) is threadedly connected with the joint body (1).

6. An argon purge fitting for facilitating the mating of pipes according to claim 1, wherein, The top of the rotating head (7) is connected with a friction plate (9), and the bottom of the pressing sleeve (4) is pressed against the friction plate (9).

7. An argon purge fitting for facilitating the mating of pipes according to claim 6, wherein, The friction plate (9) has an annular structure, and the top of the friction plate (9) is provided with a friction surface.

8. The argon purge fitting for facilitating pipe butt joining of claim 1, wherein, The air inlet interface (17) is provided with a sealing surface (16) and a sealing ring II (15), and the connecting head (8) is connected with the sealing surface (16) and the sealing ring II (15).

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