Self-inspection type stainless steel corrugated hose for fuel gas conveying

Abstract

The utility model discloses a self-checking type stainless steel corrugated hose for fuel gas delivery, which relates to the technical field of corrugated pipes and comprises a manual valve, an internal thread is arranged at a right port of the manual valve, a gasket is sleeved at the right port of the manual valve, the gasket is positioned inside the manual valve, a hoop is sleeved at the right port of the manual valve, and the hoop is positioned inside the manual valve. One end of the corrugated pipe is provided with a gasket, the other end of the corrugated pipe is provided with a hoop, the outer wall of the hoop is provided with an external thread, the hoop is in threaded connection with a manual valve, the right port of the gasket is in threaded connection with a loop nut, and the other end of the corrugated pipe is fixedly sleeved with a sealing plug. Nitrogen is injected into the other end of the manual valve (1) for pressurization, when the self-inspection type stainless steel corrugated hose for fuel gas conveying is used, related users open the valve, and if the related users hear the'bug 'sound, it shows that the fuel gas conveying pipe is good in sealing performance; if no sound exists, the pipe body is abnormal.

Description

Technical Field

[0001] The utility model relates to the technical field of bellows, in particular to a self-checking stainless steel corrugated hose for gas transportation. Background Art

[0002] As an important part of the indoor gas delivery system, the safety of the stainless steel corrugated hose for gas delivery cannot be ignored, especially the air tightness detection.

[0003] The existing installation is that workers directly bury the stainless steel corrugated hose for gas transmission, wait for installation, and then conduct airtightness test after installation. If the airtightness test fails, the burying operation is carried out again. This operation requires high manpower and financial costs. Therefore, a simple structure, low-cost self-checking stainless steel corrugated hose for gas transmission is needed to meet the shortcomings of the existing technology. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a self-checking stainless steel corrugated hose for gas transportation.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A self-inspection stainless steel corrugated hose for gas transmission, comprising a manual valve, a right side port of the manual valve being provided with an internal thread, a gasket being sleeved on the right side port of the manual valve, the gasket being located inside the manual valve, a clamp being sleeved on the right side port of the manual valve, an external thread being provided on the outer wall of the clamp, the clamp being threadedly connected to the manual valve, a slip-on nut being threadedly connected to the right side port of the gasket, the clamp being located between the gasket and the slip-on nut, a bellows being sleeved on the inside of the slip-on nut, one end of the bellows extending to the inside of the manual valve, the bellows being sleeved on the gasket and the clamp, and a sealing plug being fixedly sleeved on the other end of the bellows.

[0007] Preferably, a slot is provided on the inner wall of the gasket, and the outer wall of the bellows is inserted into the slot.

[0008] Preferably, the inner wall of the clamp is fixedly connected with an inner retaining ring, and the inner retaining ring is clamped into the corrugated groove of the outer wall of the bellows. The end of the clamp close to the slip-on nut is fixedly connected with a sleeve ring, and the sleeve ring extends to the interior of the slip-on nut. The clamp, inner retaining ring and sleeve ring are formed as one piece.

[0009] Preferably, an outer clamping ring is fixedly connected to one side outer wall of the sealing plug, and the outer clamping ring is inserted into the corrugated groove on the inner wall of the bellows. An outer convex ring is fixedly connected to one side outer wall of the sealing plug, and the sealing plug, the outer clamping ring and the outer convex ring are integrally formed.

[0010] Preferably, an inner groove is formed on the inner wall of the slip-on nut, a sealing ring is sleeved on the slip-on nut in the inner groove, and a leakage detection hole is formed on the outer wall of the slip-on nut.

[0011] Preferably, a rubber sleeve is sleeved on the outer wall of the corrugated tube, one end of the rubber sleeve extends to the inside of the slip-on nut, and the sealing ring and the rubber sleeve are sleeved on each other.

[0012] The beneficial effects of the utility model are:

[0013] In the utility model, after the self-checking stainless steel corrugated hose for gas transmission passes the airtightness test, nitrogen is injected into the other end of the manual valve for pressurization. When the self-checking stainless steel corrugated hose for gas transmission is used, the relevant user opens the valve. If a "hissing" sound is heard, it means that the gas transmission pipe has good sealing performance; if there is no sound, it means that the pipe body is abnormal. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a structural schematic diagram of a self-checking stainless steel corrugated hose for gas transmission.

[0015] Figure 2 The utility model is a structural schematic diagram of a gasket of a self-checking stainless steel corrugated hose for gas transmission.

[0016] Figure 3 The utility model is a schematic structural diagram of a clamp of a self-checking stainless steel corrugated hose for gas transmission.

[0017] Figure 4 The utility model is a structural schematic diagram of a slip-on nut of a self-checking stainless steel corrugated hose for gas transportation.

[0018] Figure 5 The utility model is a structural schematic diagram of a sealing plug of a self-checking stainless steel corrugated hose for gas transmission.

[0019] Figure 6 The utility model is a front view of a self-checking stainless steel corrugated hose for gas transmission.

[0020] Numbers in the figure: 1, manual valve; 2, gasket; 201, groove; 3, clamp; 301, inner retaining ring; 302, sleeve ring; 4, slip-on nut; 401, inner groove; 402, leakage detection hole; 5, bellows; 6, sealing plug; 601, outer retaining ring; 602, outer convex ring; 7, sealing ring; 8, rubber sleeve. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] As attached Figure 1 To Attachment Figure 6 As shown:

[0023] A self-checking stainless steel corrugated hose for gas transmission comprises a manual valve 1, the right side port of the manual valve 1 is provided with an internal thread, the right side port of the manual valve 1 is sleeved with a gasket 2, the gasket 2 is located inside the manual valve 1, the right side port of the manual valve 1 is sleeved with a clamp 3, the outer wall of the clamp 3 is provided with an external thread, the clamp 3 is threadedly connected to the manual valve 1, the right side port of the gasket 2 is threadedly connected with a slip-on nut 4, the clamp 3 is located between the gasket 2 and the slip-on nut 4, the inside of the slip-on nut 4 is sleeved with a bellows 5, one end of the bellows 5 extends to the inside of the manual valve 1, the bellows 5 is sleeved with the gasket 2 and the clamp 3, and the other end of the bellows 5 is fixedly sleeved with a sealing plug 6.

[0024] In the above technical scheme, when the self-checking stainless steel corrugated hose for gas transmission is self-checked, after the self-checking stainless steel corrugated hose for gas transmission passes the airtight test, nitrogen is injected into the other end of the manual valve 1 for pressurization. When the self-checking stainless steel corrugated hose for gas transmission is used, the relevant user opens the valve. If a "hissing" sound is heard, it means that the gas transmission pipe has good sealing performance; if there is no sound, it means that the pipe body is abnormal.

[0025] As attached Figure 1 To Attachment Figure 6 As shown, a groove 201 is provided on the inner wall of the gasket 2, and the outer wall of the bellows 5 is inserted into the groove 201. An inner snap ring 301 is fixedly connected to the inner wall of the clamp 3, and the inner snap ring 301 is inserted into the corrugated groove of the outer wall of the bellows 5. One end of the clamp 3 close to the slip-on nut 4 is fixedly connected to a sleeve ring 302, and the sleeve ring 302 extends into the interior of the slip-on nut 4. The clamp 3, the inner snap ring 301, and the sleeve ring 302 are integrally formed. An inner groove 401 is provided on the inner wall of the slip-on nut 4, and a sealing ring 7 is sleeved on the slip-on nut 4 located in the inner groove 401. A leakage detection hole 402 is provided on the outer wall of the slip-on nut 4, and a rubber sleeve 8 is sleeved on the outer wall of the bellows 5. One end of the rubber sleeve 8 extends into the interior of the slip-on nut 4, and the sealing ring 7 and the rubber sleeve 8 are sleeved on each other.

[0026] In the above technical scheme, the staff uses a skin cutting knife to cut off the rubber sleeve 8 with four waves at the end of the bellows 5 to be installed, and then fixes the outer wall of the rubber sleeve 8 with a slip-on nut 4 and a clamp 3 in sequence, and allows the inner clamp ring 301 in the clamp 3 to be inserted into the corrugated groove of the outer wall of the bellows 5, and the collar 302 extends to the inside of the slip-on nut 4, and then the gasket 2 is sleeved on the port of the bellows 5, and the outer wall protrusion of the bellows 5 is inserted into the clamping groove 201, and then the bellows 5 is inserted into the interface of the manual valve 1. The staff first manually turns Move the slipper nut 4 to thread the slipper nut 4, the clamp 3 and the port of the manual valve 1, so that the internal gasket 2 is continuously tightened as the clamp 3, the slipper nut 4 come into contact with the manual valve 1, and then the sealing plug 6 is sleeved on the other end of the bellows 5, and the outer clamping ring 601 is inserted into the corrugated groove on the inner wall of the bellows 5 to complete the assembly. Through the design of the gasket 2, the clamp 3 and the slipper nut 4, the sealing of the connection between the internal components of the bellows 5 is guaranteed, thereby ensuring the safety of the utility model and also improving the ease of assembly.

[0027] As attached Figure 1 and attached Figure 5 As shown, an outer clamping ring 601 is fixedly connected to the outer wall of one side of the sealing plug 6, and the outer clamping ring 601 is inserted into the corrugated groove of the inner wall of the bellows 5. An outer convex ring 602 is fixedly connected to the outer wall of one side of the sealing plug 6. The sealing plug 6, the outer clamping ring 601 and the outer convex ring 602 are integrally formed.

[0028] In the above technical solution, through the design of the outer clamping ring 601, the outer clamping ring 601 is inserted into the corrugated groove on the inner wall of the bellows 5. When nitrogen is injected into the bellows 5, the sealing plug 6 can be prevented from falling off.

[0029] The specific usage and function of this embodiment are as follows:

[0030] When assembling the self-checking stainless steel corrugated hose for gas transmission: the staff will use a leather cutting knife to cut off the rubber sleeve 8 with four waves at the end of the bellows 5 to be installed, and then the slip-on nut 4 and the clamp 3 are fixedly sleeved on the outer wall of the rubber sleeve 8 in sequence, and the inner clamping ring 301 in the clamping ring 3 is inserted into the corrugated groove of the outer wall of the bellows 5, and the sleeve ring 302 extends to the inside of the slip-on nut 4, and then the gasket 2 is sleeved on the port of the bellows 5, and the outer wall protrusion of the bellows 5 is inserted into the clamping groove 201, and then the bellows 5 is inserted into the interface of the manual valve 1. The staff first manually rotates the slip-on nut 4 to make the slip-on nut 4 and the clamp 3 be threadedly connected to the port of the manual valve 1, so that the internal gasket 2 is continuously tightened as the clamp 3 and the slip-on nut 4 contact the manual valve 1, and then the sealing plug 6 is sleeved on the other end of the bellows 5, and the outer clamping ring 601 is inserted into the corrugated groove of the inner wall of the bellows 5 to complete the assembly;

[0031] During the self-inspection of the self-inspection stainless steel corrugated hose for gas transmission: after the self-inspection stainless steel corrugated hose for gas transmission passes the airtightness test, inject nitrogen into the other end of the manual valve 1 for pressurization. When the nitrogen pressure reaches 0.2MPa, stop charging. When the self-inspection stainless steel corrugated hose for gas transmission is in use, the relevant user opens the valve. If a "hissing" sound is heard, it means that the gas transmission pipe has good sealing performance; if there is no sound, it means that the pipe body is abnormal.

[0032] For the above structure and process, please refer to Figure 1-6 .

[0033] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A self-checking stainless steel corrugated hose for gas transmission, comprising a manual valve (1), characterized in that: The right side port of the manual valve (1) is provided with an internal thread, the right side port of the manual valve (1) is sleeved with a gasket (2), the gasket (2) is located inside the manual valve (1), the right side port of the manual valve (1) is sleeved with a clamp (3), the outer wall of the clamp (3) is provided with an external thread, the clamp (3) is threadedly connected to the manual valve (1), the right side port of the gasket (2) is threadedly connected with a slip-on nut (4), the clamp (3) is located between the gasket (2) and the slip-on nut (4), the inside of the slip-on nut (4) is sleeved with a bellows (5), one end of the bellows (5) extends to the inside of the manual valve (1), the bellows (5) and the gasket (2) and the clamp (3) are sleeved with each other, and the other end of the bellows (5) is fixedly sleeved with a sealing plug (6).

2. A self-checking stainless steel corrugated hose for gas transportation according to claim 1, characterized in that: The inner wall of the gasket (2) is provided with a slot (201), and the outer wall of the corrugated tube (5) is inserted into the slot (201).

3. A self-checking stainless steel corrugated hose for gas transportation according to claim 1, characterized in that: The inner wall of the clamp (3) is fixedly connected to an inner clamp ring (301), and the inner clamp ring (301) is clamped into the corrugated groove of the outer wall of the corrugated tube (5). The end of the clamp (3) close to the slip-on nut (4) is fixedly connected to a sleeve ring (302), and the sleeve ring (302) extends into the interior of the slip-on nut (4). The clamp (3), the inner clamp ring (301), and the sleeve ring (302) are integrally formed.

4. A self-checking stainless steel corrugated hose for gas transportation according to claim 1, characterized in that: An outer clamping ring (601) is fixedly connected to the outer wall of one side of the sealing plug (6), and the outer clamping ring (601) is inserted into the corrugated groove on the inner wall of the corrugated tube (5). An outer convex ring (602) is fixedly connected to the outer wall of one side of the sealing plug (6), and the sealing plug (6), the outer clamping ring (601), and the outer convex ring (602) are integrally formed.

5. The self-checking stainless steel corrugated hose for gas transportation according to claim 1, characterized in that: The inner wall of the slipper nut (4) is provided with an inner groove (401), the slipper nut (4) is sleeved with a sealing ring (7) in the inner groove (401), and the outer wall of the slipper nut (4) is provided with a leakage detection hole (402).

6. A self-checking stainless steel corrugated hose for gas transportation according to claim 5, characterized in that: The outer wall of the corrugated tube (5) is sleeved with a rubber sleeve (8), one end of the rubber sleeve (8) extends into the interior of the slip-on nut (4), and the sealing ring (7) and the rubber sleeve (8) are sleeved with each other.

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