Sealing joint for large-diameter flanged pipeline

Abstract

The utility model discloses a sealing joint for a large-caliber turnup pipeline, which comprises a first adapter pipe, a rubber block is arranged inside the first adapter pipe, a rotating and fixing body is fixedly connected inside the first adapter pipe, a clamping block is fixedly connected to the side surface of the rotating and fixing body, the outside of the clamping block is connected with a fixing body in a clamping manner through an annular sliding groove, and the fixing body is fixedly connected with the rubber block. The outer portion of the fixing body is fixedly connected with a second adapting pipe, a groove is formed in the first adapting pipe, and an elastic ring is arranged between the first adapting pipe and the second adapting pipe. By means of the structure, the sliding connection sleeve outside the second adapter pipe slides, the sliding connection sleeve extrudes the elastic ring to contract in the radial direction, so that the elastic ring is clamped in the groove of the first adapter pipe, the first adapter pipe is rotated to drive the rotating and fixing body, and the clamping block is connected with the fixing body in a clamped mode through the annular sliding groove; and the arranged rubber block can guarantee the sealing performance of the joint.

Description

Technical Field

[0001] The utility model relates to the technical field, in particular to a sealing joint for large-diameter flanging pipelines. Background Art

[0002] The flanged pipe is a pipe whose two ends are heated and flanged to shape, which can effectively prevent the gasket from being hot-melted and connected, thereby causing leakage welding. It is suitable for conveying pipelines with high pressure, large wear and frequent disassembly. Therefore, it is necessary to improve the sealing effect of the connection through a connector. For example, a Chinese patent discloses a pipe joint, and its application number is: CN200910025257.1, which is connected by the two side edges of the sealing plate to the sealing flange bent downward and inward, and the sealing flange is inserted under the lower surface of the fastener plate. The outside of the sealing plate is fastened by a locking clamp, and there are mounting seats at both ends of the clamp, and bolt holes are opened on the mounting seats. Fasteners are screwed in the bolt holes. It is easy to construct and has high safety performance in use, but the connection is easily subjected to impact, and no buffer pipe belt is provided, which fails to reduce radial extrusion. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art and provides a sealing joint for large-diameter flanged pipes, wherein a sliding sleeve on the outside of a second matching pipe is slid, and the sliding sleeve squeezes an elastic ring to contract radially, so that the elastic ring is engaged in a groove of a first matching pipe, and a rotating body is driven by rotating the first matching pipe, so that a clamping block is engaged and connected with a fixed body through an annular sliding groove, wherein a rubber block is provided to ensure the sealing of the connection.

[0004] The utility model also provides the above-mentioned large-diameter flanged pipeline sealing joint, comprising: a matching pipe 1, a rack 1 is arranged inside the matching pipe 1, the rack 1 is meshingly connected with the rack 2, the outside of the rack 2 is fixedly connected with a rubber block, the inside of the matching pipe 1 is fixedly connected with a rotating body, the side surface of the rotating body is fixedly connected with a clamping block, the outside of the clamping block is clamped and connected with a fixed body through an annular sliding groove, the outside of the fixed body is fixedly connected with the matching pipe 2, a groove is arranged inside the matching pipe 1, an elastic ring is arranged between the matching pipe 1 and the matching pipe 2, a sliding sleeve is slidably connected to the outside of the elastic ring, a spring is arranged between the sliding sleeve and the matching pipe 2, a convex portion is fixedly connected to the inside of the sliding sleeve, and one end of the matching pipe 1 and the matching pipe 2 are both fixedly connected to the joint end. Through the above components, the sliding sleeve outside the second matching pipe is slid, and the sliding sleeve squeezes the elastic ring to radially shrink, so that the elastic ring is engaged in the groove of the first matching pipe. The first matching pipe is rotated to drive the rotating body, so that the clamping block is engaged and connected with the fixed body through the annular sliding groove. The rubber block provided therein can ensure the sealing of the connection and prevent the liquid inside the pipeline from causing a large impact on the pipe wall.

[0005] According to the utility model, a sealing joint for large-caliber flanged pipes is provided, the first and second matching pipes are engaged with each other. Through the above components, the tightness of the connection is enhanced through the engagement connection.

[0006] According to the utility model, a sealing joint for large-caliber flanged pipes, the elastic ring is located in a groove of the first connecting pipe, and the elastic ring has radial elasticity. The elastic ring is placed through the above components so that the elastic ring will not deviate when it contracts radially.

[0007] According to the utility model, a sealing joint for large-caliber flanged pipes, the upper surface of the rubber block is tightly connected to the rack 2, and the rubber block is located on one side of the rotating body. Through the above components, the air tightness inside the first connecting pipe is improved and the liquid impact is reduced.

[0008] According to the utility model, a sealing joint for large-caliber flanged pipes has three springs evenly distributed between the sliding sleeve and the matching pipe 2. Through the above components, the sliding sleeve can be quickly reset after being compressed.

[0009] According to the utility model, a sealing joint for large-caliber flanged pipes is provided between the first matching pipe and the elastic ring, and a retaining ring is connected to the inside of the retaining ring block, and the retaining ring and the convex part are in contact with each other. The above components prevent the sliding sleeve from sliding too much and limit the sliding distance.

[0010] According to the utility model, a sealing joint for large-caliber flanged pipes is provided, the outer portion of the sliding sleeve is sleeved with a second sleeve, and the outer portion of the second sleeve is provided with an anti-slip portion. The above components increase friction and prevent sliding and falling off.

[0011] According to the utility model, a sealing joint for large-caliber flanged pipes is provided, the outer portion of the first connecting pipe is sleeved with a first sleeve, and the first sleeve is tightly connected to the first connecting pipe. The above components protect the outer portion of the first connecting pipe from external damage.

[0012] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0014] Figure 1 This is a complete structural diagram of the utility model for a large-diameter flanged pipe sealing joint;

[0015] Figure 2 This is a cross-sectional structural diagram of the utility model for a large-diameter flanged pipe sealing joint;

[0016] Figure 3 This is a structural diagram of a pipe used for a large-diameter flanged pipe sealing joint of the utility model;

[0017] Figure 4 The utility model is a structural diagram of a fixed body used for a large-diameter flanged pipe sealing joint.

[0018] Legend:

[0019] 1. Matching pipe 1; 2. Matching pipe 2; 3. Rack 1; 4. Rack 2; 5. Rotating body; 6. Fixed body; 7. Block; 8. Rubber block; 9. Sliding sleeve; 10. Elastic ring; 11. Spring; 12. Groove; 13. Annular slide groove; 14. Retaining ring; 15. Snap ring block; 16. Protruding part; 17. Joint end; 18. Anti-slip part; 19. Casing 1; 20. Casing 2. DETAILED DESCRIPTION

[0020] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0021] Reference Figure 1-4, the utility model embodiment is a large-diameter flanged pipeline sealing joint, which includes: a matching pipe 1, a rack 1 3 is arranged inside the matching pipe 1, which is engaged with a rack 2 4, the rack 1 3 is meshed and connected with the rack 2 4, the outside of the rack 2 4 is fixedly connected with a rubber block 8 to improve the air tightness inside the matching pipe 1, the upper surface of the rubber block 8 is tightly connected with the rack 2 4, the rubber block 8 is located on one side of the rotating body 5, the inside of the matching pipe 1 is fixedly connected with the rotating body 5, the position of the fixing block 7 is fixed, the side surface of the rotating body 5 is fixedly connected with the fixing block 7, so that the fixing block 7 is engaged with the annular groove 13, the outside of the fixing block 7 is connected with a fixed body 6 through the annular groove 13, and is used to match the rotating body 5, limit the position of the elastic ring 10, fix The outside of the fixed body 6 is fixedly connected with the matching tube 2, the inside of the matching tube 1 is provided with a groove 12, an elastic ring 10 is provided between the matching tube 1 and the matching tube 2, and the connecting component is connected and engaged through radial contraction, and the outside of the elastic ring 10 is slidably connected with the sliding sleeve 9, the connecting component, the outside of the sliding sleeve 9 is sleeved with the sleeve 20 to protect the sliding sleeve 9, and the outside of the sleeve 20 is provided with an anti-slip portion 18, and a spring 11 is provided between the sliding sleeve 9 and the matching tube 2, so that the sliding sleeve 9 can be reset after sliding, and there are three springs 11 and they are evenly distributed between the sliding sleeve 9 and the matching tube 2, and the inside of the sliding sleeve 9 is fixedly connected with a convex portion 16, and one end of the matching tube 1 and the matching tube 2 is fixedly connected with a joint end 17.

[0022] The outer part of the matching tube 1 is sleeved with a sleeve 19 to protect the outer part of the matching tube 1. The sleeve 19 is tightly connected to the matching tube 1. The matching tube 1 and the matching tube 2 are engaged with each other. The elastic ring 10 is located in the groove 12 of the matching tube 1 to limit the position of the elastic ring 10. The elastic ring 10 has radial elasticity. A retaining ring block 15 is provided between the matching tube 1 and the elastic ring 10. The inner part of the retaining ring block 15 is engaged with a retaining ring 14 to limit the position of the sliding sleeve 9. The retaining ring 14 and the convex portion 16 are in conflict with each other.

[0023] Working principle: first, connect the joint end 17 of the matching tube 1 and the matching tube 2 to one end of the flanging tube, slide the sliding sleeve 9 outside the matching tube 2, and the sliding sleeve 9 squeezes the elastic ring 10 to shrink radially. At this time, the elastic ring 10 is engaged in the groove 12 of the matching tube 1. The matching tube 1 is rotated to drive the rotating body 5, so that the clamping block 7 is engaged and connected with the fixed body 6 through the annular groove 13. When the connector needs to be disassembled, the sliding sleeve 9 can be slid away from the elastic ring 10. At the same time, the spring 11 is squeezed and contracted by the sliding sleeve 9, which will push the sliding sleeve 9 to reset. Then the rotating body 5 is rotated to move the clamping block 7 out of the annular groove 13 of the fixed body 6.

[0024] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A sealing joint for large-diameter flanged pipes, characterized in that: include: A matching pipe (1), wherein a rack (3) is arranged inside the matching pipe (1), the rack (3) is meshingly connected with a rack (4), the outside of the rack (4) is fixedly connected with a rubber block (8), the inside of the matching pipe (1) is fixedly connected with a rotating body (5), the side surface of the rotating body (5) is fixedly connected with a clamping block (7), the outside of the clamping block (7) is clamped and connected with a fixed body (6) through an annular sliding groove (13), and the outside of the fixed body (6) is fixedly connected with a matching The second pipe (2) is provided with a groove (12) inside the first matching pipe (1), an elastic ring (10) is provided between the first matching pipe (1) and the second matching pipe (2), a sliding sleeve (9) is slidably connected to the outside of the elastic ring (10), a spring (11) is provided between the sliding sleeve (9) and the second matching pipe (2), a convex portion (16) is fixedly connected to the inside of the sliding sleeve (9), and one end of each of the first matching pipe (1) and the second matching pipe (2) is fixedly connected to a joint end (17).

2. A sealing joint for large-diameter flanging pipelines according to claim 1, characterized in that: The first connecting pipe (1) and the second connecting pipe (2) are engaged with each other.

3. A sealing joint for large-diameter flanging pipelines according to claim 1, characterized in that: The elastic ring (10) is located in the groove (12) of the matching pipe (1), and the elastic ring (10) has radial elasticity.

4. A sealing joint for large-diameter flanging pipelines according to claim 1, characterized in that: The upper surface of the rubber block (8) is tightly connected to the second rack (4), and the rubber block (8) is located on one side of the rotor (5).

5. The sealing joint for large-diameter flanging pipeline according to claim 1, characterized in that: There are three springs (11) which are evenly distributed between the sliding sleeve (9) and the second matching pipe (2).

6. The sealing joint for large-diameter flanging pipeline according to claim 1, characterized in that: A retaining ring block (15) is arranged between the matching pipe 1 (1) and the elastic ring (10), and a retaining ring (14) is snap-connected inside the retaining ring block (15), and the retaining ring (14) and the convex portion (16) are in mutual contact.

7. The sealing joint for large-diameter flanging pipeline according to claim 1, characterized in that: The sliding sleeve (9) is sleeved with a second sleeve (20) on its exterior, and an anti-slip portion (18) is provided on the exterior of the second sleeve (20).

8. The sealing joint for large-diameter flanging pipeline according to claim 1, characterized in that: The outer portion of the matching pipe 1 (1) is sleeved with a sleeve 1 (19), and the sleeve 1 (19) is tightly connected to the matching pipe 1 (1).

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