A sealed, leak-proof welded joint

Abstract

The utility model belongs to the technical field of welding joint, especially, relate to a sealed leakproof welding joint, first pipe body and second pipe body mutually weld, one end lateral wall of first pipe body is integrally formed and is connected with fixed block, structure connection fastening, long service life, the outer wall of second pipe body is fixedly provided with connecting block, is provided with sealing assembly between fixed block and connecting block, and sealing assembly is located the outside of the welding place of first pipe body and second pipe body, improve the sealing property of welding joint through sealing assembly, prevent the leakage of pipeline welding joint because of the poor sealing effect, thereby influence use.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of welding joint, especially relates to a sealed and leakproof welding joint. BACKGROUND

[0002] Welding joint as a commonly used tool is widely used in various technical fields, and the welding joint refers to the joint of two or more than two parts combined by welding, or the joint of two or more than two parts connected by welding, including weld, fusion zone and heat affected zone. The welding joint of fusion welding is formed by local heating of a high-temperature heat source, and the welding joint is composed of weld metal, fusion zone, heat affected zone and base metal. The welding joint has various forms, mainly including butt joint, T-shaped joint, corner joint and lap joint, and sometimes the welding structure also has some other types of joint forms, such as cross joint, end joint, hemming joint, sleeve joint, inclined butt joint and lock bottom butt joint. The existing pipeline welding joint has poor sealing effect, and leakage easily occurs at the welding position after a period of use, which leads to leakage of the pipeline and affects the use effect of the joint. CONTENT

[0003] The utility model aims at the above-mentioned technical problem, provides a kind of sealed and leakproof welding joint, to solve the problem presented in the above background.

[0004] Therefore, the utility model provides a kind of sealed and leakproof welding joint, which comprises a first pipe body;

[0005] Second pipe body, first pipe body and second pipe body are mutually welded;

[0006] Fixed block, the side wall of the one end of first pipe body is fixedly connected with fixed block;

[0007] Connecting block, the outer wall of second pipe body is provided with connecting block;

[0008] Sealing assembly, sealing assembly is arranged between fixed block and connecting block, and sealing assembly is arranged at the welding position of first pipe body and second pipe body.

[0009] In the above technical scheme, further, sealing assembly includes:

[0010] Mounting block, the mounting block includes insertion end, the middle part of insertion end is provided with annular connecting section outward, and the connecting section is respectively abutted with fixed block and connecting block on both sides;

[0011] Clamping groove, the opposite surface of fixed block and connecting block is provided with clamping groove matched with both sides of insertion end;

[0012] Sealing pad, sealing pad is arranged between the welding position of first pipe body and second pipe body and insertion end.

[0013] In the above technical solution, further, the sealing assembly further comprises:

[0014] The mounting groove is arranged on one side of the connecting section;

[0015] The first fixing through hole is arranged on the mounting groove and is uniformly distributed in a circle;

[0016] The second fixing through hole is arranged on one side of the fixing block close to the connecting block and is uniformly distributed in a circle, and the first fixing through hole is matched with the second fixing through hole;

[0017] The fixing bolt is arranged in the first fixing through hole and the second fixing through hole, and the bolt head is arranged in the mounting groove.

[0018] In the above technical solution, further, the sealing assembly further comprises:

[0019] The clamping assembly is arranged between the fixing block and the connecting block.

[0020] In the above technical solution, further, the clamping assembly comprises:

[0021] The shrinkage groove is arranged on the outer wall of the fixing block and is uniformly distributed in a circle;

[0022] The clamping block is slidably connected to the shrinkage groove;

[0023] The spring is arranged between the inner wall of the shrinkage groove and the clamping block.

[0024] The fixing groove is arranged on the side wall of the connecting block and is matched with the clamping block.

[0025] In the above technical solution, further, the outer side wall of the second pipe body is provided with an external thread, and the inner side wall of the connecting block is provided with an internal thread matched with the external thread.

[0026] In the above technical solution, further, the clamping block is provided with a rounded corner close to the outer wall of the second pipe body.

[0027] In the above technical solution, further, the two end faces of the connecting section are provided with sealing grooves, and the sealing rings are arranged in the sealing grooves.

[0028] The utility model discloses the beneficial effects are:

[0029] 1. The sealing assembly improves the sealing property of the welding joint, prevents the pipeline welding joint from leaking due to poor sealing effect, and thus affects use.

[0030] 2. The fixed block and the connecting block are fixedly connected through the clamping assembly, the connection is stable, the installation and dismounting are simple, when the internal parts are damaged, the internal parts can be replaced in time, the whole does not need to be replaced, and waste is avoided.

[0031] 3. The clamping block is provided with a rounded corner on the side wall close to the second pipe body, and the connecting block is more easily extruded into the contraction groove during movement. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a structural schematic diagram of the utility model;

[0033] Figure 2 is a schematic diagram of the internal structure of the utility model;

[0034] Figure 3 is a partial enlarged view of A in the utility model Figure 2

[0035] Figure 4 is an exploded view of the utility model;

[0036] The marks in the drawing are as follows: 1 - first pipe body, 2 - second pipe body, 3 - fixed block, 4 - connecting block, 5 - mounting block, 6 - insertion end, 7 - connecting section, 8 - first fixed through hole, 9 - second fixed through hole, 10 - mounting groove, 11 - fixed bolt, 12 - clamping groove, 13 - sealing gasket, 14 - contraction groove, 15 - clamping block, 16 - spring, 17 - fixed groove, 18 - sealing groove, 19 - sealing ring. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the application will be clearly described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the application.

[0038] Embodiment 1:

[0039] The embodiment provides a sealed and leakage-proof welding joint, which comprises:

[0040] The first pipe body 1;

[0041] The second pipe body 2, the first pipe body 1 and the second pipe body 2 are welded with each other;

[0042] The fixed block 3, the first pipe body 1 is fixedly connected with the fixed block 3 on the side wall of one end close to the second pipe body 2;

[0043] The connecting block 4, the outer wall of the second pipe body 2 is provided with the connecting block 4; ​

[0044] A sealing assembly is arranged between the fixing block 3 and the connecting block 4, and the sealing assembly is arranged outside the welding position of the first pipe body 1 and the second pipe body 2.

[0045] It can be seen from the embodiment that the first pipe body 1 and the second pipe body 2 are welded with each other, the first pipe body 1 is integrally connected with the fixing block 3 on one side wall near the second pipe body 2, the structure is connected and fixed, the service life is long, the second pipe body 2 is fixedly provided with the connecting block 4 on the outer wall, the sealing assembly is arranged between the fixing block 3 and the connecting block 4, and the sealing assembly is arranged outside the welding position of the first pipe body 1 and the second pipe body 2. The sealing assembly improves the sealing performance of the welding joint, prevents leakage of the pipeline welding joint due to poor sealing effect, and thus affects use.

[0046] Embodiment 2:

[0047] The embodiment provides a sealing and leakage-proof welding joint, which further has the following technical features in addition to the technical solutions of the above-mentioned embodiments.

[0048] The sealing assembly comprises:

[0049] The mounting block 5 comprises an insertion end 6, and an annular connecting section 7 is arranged on the middle part of the insertion end 6 outwardly; the connecting section 7 is in abutment with the fixing block 3 and the connecting block 4 on the two sides, respectively;

[0050] The clamping groove 12 is arranged on the opposite surface of the fixing block 3 and the connecting block 4, and is matched with the two sides of the insertion end 6;

[0051] The sealing gasket 13 is arranged between the welding position of the first pipe body 1 and the second pipe body 2 and the insertion end 6.

[0052] It can be seen from the embodiment that the clamping groove 12 is arranged on the opposite surface of the fixing block 3 and the connecting block 4, and is matched with the two sides of the insertion end 6; the two ends of the insertion end 6 are respectively inserted into the two clamping grooves 12 during connection; the connecting section 7 is in abutment with the fixing block 3 and the connecting block 4 on the two sides, respectively; and the sealing gasket 13 is arranged between the welding position of the first pipe body 1 and the second pipe body 2 and the insertion end 6, so that the sealing performance of the pipeline welding joint can be improved and leakage can be prevented.

[0053] Embodiment 3:

[0054] The embodiment provides a sealing and leakage-proof welding joint, which further has the following technical features in addition to the technical solutions of the above-mentioned embodiments.

[0055] The sealing assembly further comprises:

[0056] The mounting groove 10 is arranged on one side of the connecting section 7;

[0057] The first fixing through hole 8 is arranged on the mounting groove 10.

[0058] The second fixing through hole 9 is arranged on one side of the fixing block 3 close to the connecting block 4.

[0059] The fixing bolt 11 is arranged in the first fixing through hole 8 and the second fixing through hole 9, and the bolt head is located in the mounting groove 10.

[0060] It can be seen from the embodiment that the first fixing through hole 8 and the second fixing through hole 9 are matched, the fixing bolt 11 is arranged in the first fixing through hole 8 and the second fixing through hole 9, and the mounting block 5 is firmly fixed on the fixing block 3.

[0061] Embodiment 4:

[0062] The welding joint of the embodiment is sealed and leakage-proof, and has the following technical features in addition to the technical solutions of the above embodiments.

[0063] Further comprising:

[0064] The fixing block 3 and the connecting block 4 are fixedly connected through the clamping assembly.

[0065] It can be seen from the embodiment that the fixing block 3 and the connecting block 4 are fixedly connected through the clamping assembly, the connection is stable, the mounting and dismounting are simple, the internal parts can be replaced in time when the internal parts are damaged, the whole does not need to be replaced, and waste is avoided.

[0066] Embodiment 5:

[0067] The welding joint of the embodiment is sealed and leakage-proof, and has the following technical features in addition to the technical solutions of the above embodiments.

[0068] The clamping assembly comprises:

[0069] The shrinkage groove 14 is arranged on the outer side wall of the fixing block 3.

[0070] The clamping block 15 is slidably connected to the shrinkage groove 14.

[0071] The spring 16 is arranged between the inner wall of the shrinkage groove 14 and the clamping block 15.

[0072] The fixing groove 17 is arranged on the side wall of the connecting block 4.

[0073] The two springs 16 are arranged between the inner wall of the contraction groove 14 and the clamping block 15, and are used to provide the power for the outward ejection of the clamping block 15.

[0074] Embodiment 6:

[0075] The welding joint of the present embodiment is sealed and leakage-proof, and in addition to the technical solutions of the above embodiments, has the following technical features.

[0076] The outer side wall of the second pipe body 2 is provided with external threads, and the inner side wall of the connecting block 4 is provided with internal threads matched with the external threads.

[0077] As can be seen from the present embodiment, the mutually matched internal and external threads facilitate the firm installation of the connecting block 4 on the second pipe body 2.

[0078] Embodiment 7:

[0079] The welding joint of the present embodiment is sealed and leakage-proof, and in addition to the technical solutions of the above embodiments, has the following technical features.

[0080] The side wall of the clamping block 15 close to the second pipe body 2 is provided with a rounded corner.

[0081] As can be seen from the present embodiment, the side wall of the clamping block 15 close to the second pipe body 2 is provided with a rounded corner, so that the clamping block 15 is more easily pressed into the contraction groove 14 during the movement of the connecting block 4.

[0082] Embodiment 8:

[0083] The welding joint of the present embodiment is sealed and leakage-proof, and in addition to the technical solutions of the above embodiments, has the following technical features.

[0084] The two end faces of the connecting section 7 are provided with sealing grooves 18, and the sealing grooves 18 are installed with sealing rings 19.

[0085] As can be seen from the present embodiment, the sealing grooves 18 and the sealing rings 19 matched with the sealing grooves 18 are arranged, so as to further enhance the sealing effect.

[0086] Working principle: when installing, the first pipe body 1 and the second pipe body 2 are welded, after welding and cooling, the mounting block 5 is attached to the fixed block 3, one end of the insertion end 6 is inserted into the clamping groove 12 opened on the fixed block 3, then the mounting block 5 is rotated to the specified position, so that the first fixed hole 8 and the second fixed hole 9 correspond, then the fixing bolt 11 is threaded into the first fixed hole 8 and the second fixed hole 9, the mounting block 5 is fixed on the fixed block 3, at this time the connecting block 4 is sleeved on the second pipe body 2, after reaching a certain position, the connecting block 4 is screwed with the second pipe body 2, the connecting block 4 gradually extrudes the clamping block 15 in the process of screwing, the clamping block 15 extrudes the spring 16, when the screwing reaches the position corresponding to the contraction groove 14 and the fixed groove 17, the clamping block 15 moves upward between the contraction groove 14 and the fixed groove 17 under the restoring force of the spring 16, and clamps the connecting block 4, realizing the fixed connection between the fixed block 3 and the connecting block 4, at this time the other end of the insertion end 5 is inserted into the clamping groove 12 opened on the connecting block 4, the sealing gasket 13 arranged between the welding position of the first pipe body 1 and the second pipe body 2 and the insertion end 6 and the sealing ring 19 arranged in the sealing groove 18 at both ends of the connecting section 7 improve the sealing performance of the welded joint, prevent leakage of the pipeline welded joint due to poor sealing effect, and thus affect the use; when disassembling, only need to press the clamping block 15 into the contraction groove 14, and then rotate the connecting block 4, the connecting block 4 can be disassembled, and then the fixing bolt 11 is unscrewed, the parts can be repaired and replaced.

[0087] The embodiments of the present application are described above in combination with the drawings, the embodiments and the features in the embodiments in the present application can be combined with each other without conflict, the present application is not limited to the above specific embodiments, the above specific embodiments are only illustrative, not restrictive, those skilled in the art can make many forms under the inspiration of the present application without departing from the purpose of the present application and the scope protected by the claims, all of which belong to the protection of the present application.

Claims

1. A leak-proof welded joint, characterized in that, include: first tube body(1); The second tube (2) is welded to the first tube (1) and the second tube (2); A fixing block (3) is fixedly connected to one end of the first tube (1) near the second tube (2); Connecting block (4), the outer wall of the second tube (2) is provided with connecting block (4); A sealing assembly is provided between the fixing block (3) and the connecting block (4), and the sealing assembly is located outside the welding point of the first pipe body (1) and the second pipe body (2).

2. The sealing and leak-proof welded joint according to claim 1, characterized in that, The sealing assembly includes: Mounting block (5), the mounting block (5) includes an insertion end (6), the middle part of the insertion end (6) is provided with an annular connecting section (7) and the two sides of the connecting section (7) respectively abut against the fixing block (3) and the connecting block (4); The card slot (12) is provided on the opposite surfaces of the fixing block (3) and the connecting block (4) to match the two sides of the insertion end (6); A sealing gasket (13) is provided between the weld joint of the first tube body (1) and the second tube body (2) and the insertion end (6).

3. The sealing and leak-proof welded joint according to claim 2, characterized in that, The sealing assembly further includes: The mounting groove (10) is provided on one side of the connecting section (7); The first fixing through hole (8) is provided on the mounting groove (10) with a plurality of circumferentially evenly distributed first fixing through holes (8); The second fixing through hole (9) is provided on the side of the fixing block (3) near the connecting block (4) with several circumferentially evenly distributed second fixing through holes (9), and the first fixing through hole (8) is adapted to the second fixing through hole (9); A fixing bolt (11) is inserted into the first fixing through hole (8) and the second fixing through hole (9), and the bolt head is located in the mounting groove (10).

4. The sealing and leak-proof welded joint according to claim 3, characterized in that, Also includes: The fixing block (3) and the connecting block (4) are fixedly connected by the snap-fit ​​assembly.

5. A sealing and leak-proof welded joint according to claim 4, characterized in that, The snap-fit ​​assembly includes: Shrinkage grooves (14): Several shrinkage grooves (14) are evenly provided on the outer circumference of the outer wall of the fixing block (3); A snap-fit ​​block (15) is slidably connected to the shrinkage groove (14); Springs (16), two springs (16) are disposed between the inner wall of the shrink groove (14) and the snap block (15); Fixing groove (17): The side wall of the connecting block (4) is provided with a plurality of fixing grooves (17) that are adapted to the snap-fit ​​block (15).

6. A sealing and leak-proof welded joint according to claim 5, characterized in that, The outer side wall of the second tube (2) is provided with an external thread, and the inner side wall of the connecting block (4) is provided with an internal thread that matches the external thread.

7. A sealing and leak-proof welded joint according to claim 6, characterized in that, The snap-fit ​​block (15) has a rounded corner on the outer wall of the side closest to the second tube (2).

8. A sealing and leak-proof welded joint according to claim 7, characterized in that, The two ends of the connecting section (7) are provided with sealing grooves (18), and sealing rings (19) are installed in the sealing grooves (18).

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