Pressure relief device for pressure pipeline

Abstract

The utility model discloses a pressure relief device for a pressure pipeline, which belongs to the technical field of pipeline pressure relief and comprises pressure relief equipment mounted on a pressure pipeline body. The pressure pipeline body and the pressure relief equipment are connected in a sealed mode through a connecting mechanism. The connecting mechanism is composed of a first connecting piece and a second connecting piece. The first connecting piece is arranged at the end part of the pressure pipeline body; the second connecting pieces are arranged at the two ends of the pressure relief device; the first connecting piece and the second connecting piece are clamped and fixed, and a sealing ring is arranged at the joint of the first connecting piece and the second connecting piece; the pressure relief device for the pressure pipeline is simple in structure, stable in connection, good in sealing performance and more convenient to disassemble and assemble, and the construction efficiency is improved.

Description

Technical Field

[0001] The utility model specifically relates to a pressure pipeline pressure relief device, belonging to the technical field of pipeline pressure relief. Background Art

[0002] With the development of life, various pipelines are everywhere around us, such as natural gas pipelines, water pipelines, sewer pipelines, and wire and cable pipelines. When installing pipelines, it is often necessary to install a pressure relief device to hydraulically pressurize the pipeline to ensure the safe operation of the pipeline system.

[0003] A conventional pressure relief device is usually connected to a pressure pipe by a threaded connection. When installing or disassembling the pressure relief device, a lot of time is required for twisting and disassembling, which reduces construction efficiency. Therefore, a pressure pipe pressure relief device is proposed to address the above problem. Utility Model Content

[0004] In order to solve the above problems, the utility model proposes a pressure pipe pressure relief device, which has a simple structure, a stable connection, a good sealing performance, and is more convenient to disassemble and assemble, thereby improving the construction efficiency.

[0005] The utility model discloses a pressure relief device for a pressure pipeline, comprising a pressure relief device installed on a pressure pipeline body; the pressure pipeline body and the pressure relief device are sealed and connected via a connecting mechanism; the connecting mechanism is composed of a first connecting member and a second connecting member; the first connecting member is arranged at the end of the pressure pipeline body; the second connecting member is arranged at both ends of the pressure relief device; the first connecting member and the second connecting member are fixed by clamping, and a sealing ring is arranged at the joint between the first connecting member and the second connecting member.

[0006] Furthermore, the outer wall of the first connecting member on one side close to the second connecting member has a plurality of blocks evenly distributed along the circumference of the pressure pipe body; the inner wall of the second connecting member has a plurality of slots matching the blocks evenly distributed along its circumference; the cross-section of the slot is an L-shaped structure, and the slot is fixedly connected to the block.

[0007] Furthermore, it also includes a fixing mechanism for fixing the pressure pipeline body; the fixing mechanism includes a movable ring movably sleeved on the surface of the second connecting piece, and a plurality of clamping plates arranged on the movable ring; the plurality of clamping plates are evenly distributed along the circumference of the movable ring.

[0008] Furthermore, a plurality of grooves matching the clamping plate are formed on the outer surface of the second connecting member along its circumference.

[0009] Furthermore, a plurality of connection plates matching the clamping plate are evenly distributed on the outer surface of the first connection piece, on the side away from the clamping block; the connection plates are evenly arranged along the circumference of the pressure pipe body.

[0010] Furthermore, one end of the connecting plate close to the second connecting member is clamped with the slot body, and the end of the connecting plate is pressed into the slot body through a clamping plate; the connecting plate corresponds to the slot body one by one.

[0011] As a preferred embodiment, a fixing block with a semi-elliptical cross-section is provided at the bottom of the connecting plate close to the clamping plate; the fixing block is clamped in the slot body.

[0012] Compared with the prior art, the pressure relief device for a pressure pipe of the utility model is fixed by clamping a clamping block and a clamping groove on the first connecting member and the second connecting member. Since the cross section of the clamping groove is an L-shaped structure, after the clamping block is pushed to the bottom of the clamping groove, the clamping block is rotated so that the clamping block is clamped with the bottom of the clamping groove, thereby completing the mutual fixation of the pressure relief device and the pressure pipe body; at the same time, the connecting plate rotates synchronously with the first connecting member and moves to the groove body on the surface of the second connecting member, so that the connecting plate and the groove body correspond one to one; then, the movable ring is rotated to move the clamping plate to the surface of the connecting plate, blocking the connecting plate to prevent the first connecting member from rotating on its own; at the same time, the sealing of the connection is increased by the sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the utility model.

[0014] Figure 2 This is a schematic diagram of the connecting mechanism structure of Example 1 of the utility model.

[0015] Figure 3 This is a schematic diagram of the fixing mechanism structure of Example 1 of the utility model.

[0016] Figure 4 This is a schematic diagram of the internal structure of the second connecting member in Example 1 of the utility model.

[0017] The components in the accompanying drawings are marked as: 1. Pressure pipe body; 2. Connection mechanism; 21. First connection piece; 22. Block; 23. Slot; 24. Second connection piece; 3. Pressure relief device; 4. Fixing mechanism; 41. Movable ring; 42. Clamp plate; 43. Slot body; 44. Connection plate; 5. Sealing ring. DETAILED DESCRIPTION

[0018] Embodiment 1:

[0019] like Figure 1The pressure relief device for a pressure pipe shown in the figure comprises a pressure relief device 3 installed on a pressure pipe body 1; the pressure pipe body 1 and the pressure relief device 3 are sealedly connected via a connecting mechanism 2; the connecting mechanism 2 is composed of a first connecting member 21 and a second connecting member 24; the first connecting member 21 is arranged at the end of the pressure pipe body 1; the second connecting member 24 is arranged at both ends of the pressure relief device 3; the first connecting member 21 and the second connecting member 24 are clamped and fixed, and a sealing ring 5 is arranged at the joint between the first connecting member 21 and the second connecting member 24.

[0020] like Figure 2 As shown, the outer wall of the first connecting member 21 close to the second connecting member 24 is evenly distributed along the circumference of the pressure pipe body 1 with a plurality of blocks 22; the inner wall of the second connecting member 24 is evenly distributed along its circumference with a plurality of slots 23 matching the blocks 22; the cross section of the slot 23 is L-shaped, and the slot 23 is fixedly engaged with the block 22; the pressure relief device 3 and the pressure pipe body 1 are connected to each other by pushing the block 22 into the slot 23. Since the cross section of the slot 23 is L-shaped, after the block 22 is located at the bottom of the slot 23, the block 22 is rotated so that the block 22 is engaged with the bottom of the slot 23, thereby fixing the pressure relief device 3 and the pressure pipe body 1 to each other.

[0021] like Figure 3 As shown, it also includes a fixing mechanism 4 for fixing the pressure pipeline body 1; by setting the fixing mechanism 4 on the first connecting member 21 and the second connecting member 24, the pressure relief device 3 and the pressure pipeline body 1 are fixed to each other to prevent the pressure pipeline body 1 from being separated from the pressure relief device 3 due to the rotation of the pressure pipeline body 1; the fixing mechanism 4 includes a movable ring 41 movably sleeved on the surface of the second connecting member 24, and a plurality of clamping plates 42 arranged on the movable ring 41; the plurality of clamping plates 42 are evenly distributed along the circumference of the movable ring 41. The outer surface of the second connecting member 24 is provided with a plurality of grooves 43 matching the clamping plates 42 along its circumference. The outer surface of the first connecting member 21 is evenly distributed with a plurality of connecting plates 44 matching the clamping plates 42 on the side away from the clamping block 22; the connecting plates 44 are evenly arranged along the circumference of the pressure pipeline body 1. The connecting plate 44 is clamped with the groove body at one end close to the second connecting member 24, and the end of the connecting plate 44 is pressed into the groove body 43 through the clamping plate 42. A fixing block (not shown) with a semi-elliptical cross-section is provided at the bottom of the connecting plate 44 near the clamping plate 42; the fixing block is clamped in the groove body 43, and the fixing block is embedded in the groove body 43, which can limit the connecting plate 44 and prevent the first connecting piece 21 from rotating on its own, thereby causing the pressure pipe body 1 to separate from the pressure relief device 3.

[0022] like Figure 4As shown, a groove is provided on the inner wall of the second connecting member 24 inside the card slot 23, and a placement groove for installing the sealing ring 5 is provided inside the groove. After the first connecting member 21 and the second connecting member 24 are connected, the sealing ring 5 can be compressed to increase the sealing of the connection.

[0023] Before assembling the pressure pipe pressure relief device of the utility model, the sealing ring 5 is first installed in the second connecting member 24; during assembly, the block 22 of the first connecting member 21 is first matched with the slot 23 of the second connecting member 24, and then the block 22 is pushed into the slot 23 until it cannot be pushed; then, the first connecting member 21 is rotated to drive the block 22 to move in the slot 23, and the block 22 is pushed into the turning point at the bottom of the slot 23 to complete the preliminary fixation of the pressure relief device 3 and the pressure pipe body 1; because the first connecting member 21 drives the connecting plate 44 to move synchronously when rotating, the connecting plate 44 is moved to the groove body 43 on the surface of the second connecting member 24, so that the connecting plate 44 corresponds to the groove body 43 one by one; then, the movable ring 41 is rotated to drive the card plate 42 to rotate, so that the card plate 42 moves to the surface of the connecting plate 44, thereby blocking the connecting plate 44 and preventing the first connecting member 21 from rotating by itself; at the same time, the sealing of the connection is increased by the sealing ring 5.

[0024] The above embodiments are only preferred implementations of the present utility model, so all equivalent changes or modifications made according to the structures, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A pressure pipe pressure relief device, comprising a pressure relief device installed on a pressure pipe body; Features: The pressure pipe body and the pressure relief device are sealed and connected via a connecting mechanism; the connecting mechanism consists of a first connecting member and a second connecting member; the first connecting member is arranged at the end of the pressure pipe body; the second connecting member is arranged at both ends of the pressure relief device; the first connecting member and the second connecting member are fixed by snap-fitting, and a sealing ring is arranged at the joint between the first connecting member and the second connecting member.

2. The pressure pipe pressure relief device according to claim 1, Features: The outer wall of the first connecting member on one side close to the second connecting member is evenly distributed with a plurality of clamping blocks along the circumference of the pressure pipe body; the inner wall of the second connecting member is evenly distributed with a plurality of clamping grooves matching the clamping blocks along its circumference; the cross-section of the clamping groove is an L-shaped structure, and the clamping groove is fixedly connected with the clamping block.

3. The pressure pipe pressure relief device according to claim 1, Features: It also includes a fixing mechanism for fixing the pressure pipeline body; the fixing mechanism includes a movable ring movably sleeved on the surface of the second connecting piece, and a plurality of clamping plates arranged on the movable ring; the plurality of clamping plates are evenly distributed along the circumference of the movable ring.

4. The pressure pipe pressure relief device according to claim 3, Features: The outer surface of the second connecting member is provided with a plurality of grooves matching the clamping plate along its circumference.

5. The pressure pipe pressure relief device according to claim 1, Features: A plurality of connection plates matching the clamping plate are evenly distributed on the outer surface of the first connection piece, on the side away from the clamping block; the connection plates are evenly arranged along the circumference of the pressure pipe body.

6. The pressure pipe pressure relief device according to claim 5, Features: The connecting plate is clamped with the slot body at one end close to the second connecting member, and the end of the connecting plate is pressed into the slot body through the clamping plate; the connecting plate corresponds to the slot body one by one.

7. The pressure pipe pressure relief device according to claim 5, Features: A fixing block with a semi-elliptical cross section is arranged at the bottom of one side of the connecting plate close to the clamping plate; the fixing block is clamped in the slot body.

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