Pressure-resistant stainless steel corrugated hose for fuel gas conveying

Abstract

The utility model relates to the technical field of stainless steel corrugated hoses, and provides a pressure-resistant stainless steel corrugated hose for gas delivery, which comprises a corrugated pipe main body and an external connector arranged at the end part of the corrugated pipe main body, and the surface of the connecting end of the external connector is provided with a limiting clamping groove. After the external connector is connected with the connecting joint, the limiting clamping groove is aligned with the threaded hole, then the screw plug block is screwed into the threaded hole, the locking rod is driven to move and be inserted into the limiting clamping groove to be clamped, and the connecting joint is limited, so that the effect of reinforcing and locking the connecting joint is achieved, the installation firmness of the corrugated pipe body is guaranteed, and the service life of the corrugated pipe body is prolonged. And the mounting effect and the use stability of the corrugated pipe main body are effectively improved.

Description

Technical Field

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

[0002] Stainless steel corrugated hose is a kind of industrial metal material with flexibility and good heat and pressure resistance. According to the use, it mainly includes metal bellows, bellows expansion joints, bellows heat exchange tubes, diaphragm boxes, etc.

[0003] The authorized patent with the known application number: CN202123138697.3 discloses a stainless steel corrugated metal hose with strong pressure resistance. Its background technology raises the problem that "the existing stainless steel corrugated metal hose has poor pressure resistance and is prone to deformation". To this end, the technical solution to this problem is "including: a corrugated hose main body, the rear end of the corrugated hose main body is fixedly connected with a connecting pipe mouth, the corrugated hose main body and the connecting pipe mouth are fixed in one piece, and the diameter of the connecting pipe mouth is smaller than the diameter of the outer wall of the corrugated hose main body; a shaping steel wire, which is symmetrically arranged at the upper and lower ends of the interior of the corrugated hose main body, and the corrugated inner wall of the corrugated hose main body is fixed with a pressure-resistant ring, and the pressure-resistant rings are evenly distributed along the inner wall of the corrugated hose main body at equal distances".

[0004] However, in the implementation of relevant technologies, it was found that the above-mentioned technical solution has the following problems: although the technical solution provided achieves the effect of increasing the pressure resistance of the corrugated hose body, it is inconvenient to reinforce the connecting head to prevent loosening during use. When the corrugated hose is connected to an external connector during use, the corrugated hose may be affected by external vibrations, causing the connection to loosen, thereby reducing the installation effect and stability of the corrugated hose. Utility Model Content

[0005] The utility model provides a stainless steel corrugated hose for pressure-resistant gas transmission, which solves the problem in the related art that it is inconvenient to perform reinforcement and anti-loosening treatment on a connector.

[0006] The technical solution of the utility model is as follows: a stainless steel corrugated hose for pressure-resistant gas transmission, comprising: a corrugated hose body and an external connector provided at the end of the corrugated hose body, wherein a limit groove is provided on the surface of the connecting end of the external connector;

[0007] A connecting joint sleeved on the end surface of the bellows body and threadedly connected to the external connecting head, wherein the moving range of the connecting joint is limited by a stopper provided on the end of the bellows body, and a threaded hole is provided on the surface of the connecting joint;

[0008] A screw plug block threadedly connected to the threaded hole;

[0009] And a locking rod which is fixedly connected to the bottom of the screw plug block and plugged into the limiting slot.

[0010] Preferably, the limiting member comprises a limiting ring fixedly mounted on the end surface of the bellows body.

[0011] Preferably, a sealing ring in contact with the limiting ring is provided in the connecting joint.

[0012] Preferably, an anti-compression ring is fixedly installed on the inner wall of the wave crest of the bellows main body, and the anti-compression ring is made of a steel ring material.

[0013] Preferably, a cleaning mechanism is provided on the surface of the bellows body;

[0014] The cleaning mechanism comprises a cleaning ring sleeved on the surface of the bellows body and a plurality of cleaning bristles fixedly mounted on the inner wall of the cleaning ring, wherein the plurality of cleaning bristles are evenly distributed in a circular array.

[0015] Preferably, a fixing block is symmetrically fixedly mounted on the surface of the cleaning ring, and rubber pads are fixedly mounted on both the upper and lower side surfaces of the fixing block.

[0016] Preferably, a ring-shaped protective shell is fixedly mounted on the surface of one end of the bellows body, the cleaning ring is located inside the protective shell, and a notch that matches the fixed block is symmetrically opened on one end surface of the protective shell.

[0017] The working principle and beneficial effects of the utility model are:

[0018] When in use, the connecting joint is connected to the external connecting head by rotating the connecting joint, and under the action of the limiting ring, the connecting joint is limited, and the sealing ring is squeezed through the external connecting head to ensure the sealing effect between the bellows main body and the external connecting head. When the external connecting head and the connecting joint are connected, the limiting slot and the threaded hole are aligned, and then the screw plug block is screwed into the threaded hole, and the locking rod is driven to move and insert into the limiting slot to clamp, which is used to limit the connecting joint. Therefore, the effect of reinforcing and locking the connecting joint is achieved, and the bellows main body is prevented from being affected by external vibration and causing the connecting joint to loosen due to self-rotation, thereby ensuring the installation firmness of the bellows main body and effectively improving the installation effect and use stability of the bellows main body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0021] Figure 2It is a schematic diagram of the cross-sectional three-dimensional structure of the connection joint of the utility model;

[0022] Figure 3 It is a partial three-dimensional structural schematic diagram of the external connector of the utility model;

[0023] Figure 4 It is a schematic diagram of the cross-sectional three-dimensional structure of the main body of the bellows of the utility model;

[0024] Figure 5 It is a partial three-dimensional structural schematic diagram of the cleaning ring of the utility model;

[0025] In the figure: 1. bellows body; 2. external connector; 3. limit slot; 4. connecting joint; 5. threaded hole; 6. screw plug block; 7. locking rod; 8. limit ring; 9. sealing ring; 10. anti-pressure ring; 11. cleaning ring; 12. cleaning brush; 13. fixing block; 14. rubber pad; 15. protective shell. DETAILED DESCRIPTION

[0026] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Embodiment 1

[0028] See also Figure 1 - Figure 5 The utility model provides a pressure-resistant stainless steel corrugated hose for gas transmission, comprising: a corrugated hose body 1 and an external connector 2 provided at the end of the corrugated hose body 1, a limited slot 3 is provided on the surface of the connecting end of the external connector 2, wherein the corrugated hose body 1 is made of stainless steel and has excellent wear resistance and corrosion resistance, and the external connector 2 is installed on the external gas pipe;

[0029] A connecting joint 4 is sleeved on the end surface of the bellows body 1 and threadedly connected to the external connecting head 2. The connecting joint 4 is limited in its movement range by a stopper provided at the end of the bellows body 1. A threaded hole 5 is provided on the surface of the connecting joint 4.

[0030] A screw plug block 6 threadedly connected to the threaded hole 5;

[0031] And a locking rod 7 which is fixedly connected to the bottom of the screw plug block 6 and plugged into the limiting slot 3.

[0032] The limiting member comprises a limiting ring 8 fixedly mounted on the end surface of the bellows body 1 .

[0033] A sealing ring 9 in contact with the limiting ring 8 is arranged in the connecting joint 4 .

[0034] The technical solution provided by this embodiment is as follows: when in use, the connecting joint 4 is connected to the external connecting head 2 by rotating the connecting joint 4, and the connecting joint 4 is limited under the action of the limiting ring 8 to prevent the connecting joint 4 from being separated from the corrugated pipe body 1. At the same time, as the connection progresses between the external connecting head 2 and the connecting joint 4, the end of the external connecting head 2 will gradually contact and squeeze with the sealing ring 9 to ensure the sealing effect between the corrugated pipe body 1 and the external connecting head 2. When the external connecting head 2 and the connecting joint 4 are fully connected, the limiting groove 3 and the threaded hole 5 are in contact with each other. After alignment, the screw plug block 6 is screwed into the threaded hole 5, and the locking rod 7 is driven to move and insert into the limiting slot 3 for locking, which is used to limit the connecting joint 4. When disassembling the bellows main body 1, the screw plug block 6 is rotated to drive the locking rod 7 and the limiting slot 3 to separate, and then the connecting joint 4 is rotated to separate from the external connecting head 2. Therefore, the effect of reinforcing and locking the connecting joint 4 is achieved, and the bellows main body 1 is prevented from being affected by external vibrations and causing the connecting joint 4 to loosen due to self-rotation, thereby ensuring the installation firmness of the bellows main body 1 and effectively improving the installation effect and use stability of the bellows main body 1.

[0035] Furthermore, the inner wall of the wave crest of the bellows main body 1 is fixedly mounted with an anti-compression ring 10, and the anti-compression ring 10 is made of a steel ring material.

[0036] Specifically, by providing a compression ring 10 made of a metal steel ring, the compression resistance of the bellows main body 1 can be greatly improved, preventing the bellows main body 1 from being dented and damaged when it is subjected to pressure, thereby extending the service life of the bellows main body 1 and improving the use strength of the bellows main body 1.

[0037] Embodiment 2

[0038] Based on the first embodiment, in this embodiment: a cleaning mechanism is provided on the surface of the bellows body 1;

[0039] The cleaning mechanism comprises a cleaning ring 11 sleeved on the surface of the bellows body 1 and a plurality of cleaning bristles 12 fixedly mounted on the inner wall of the cleaning ring 11. The plurality of cleaning bristles 12 are evenly distributed in a circular array.

[0040] A fixing block 13 is symmetrically fixedly mounted on the surface of the cleaning ring 11 , and rubber pads 14 are fixedly mounted on both upper and lower side surfaces of the fixing block 13 .

[0041] A ring-shaped protective shell 15 is fixedly mounted on the surface of one end of the bellows body 1 . The cleaning ring 11 is located inside the protective shell 15 . A notch that matches the fixing block 13 is symmetrically opened on one end surface of the protective shell 15 .

[0042] The technical solution provided in this embodiment is: by setting a fixed block 13, it is convenient to drive the cleaning ring 11 to move along the length direction of the bellows main body 1, and it can also drive the cleaning ring 11 to rotate, and the friction between the person's fingers and the fixed block 13 is increased through the rubber pad 14, so that under the action of the cleaning bristles 12, the cleaning ring 11 can clean the surface of the bellows main body 1 during the movement, prevent a large amount of dust from adhering to the surface of the bellows main body 1, and facilitate personnel to clean the surface of the bellows main body 1. After cleaning, the cleaning ring 11 is moved into the protective shell 15, and the protective shell 15 can be used to protect the cleaning bristles 12 to prevent dust in the air from adhering to the cleaning bristles 12.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A stainless steel corrugated hose for pressure-resistant gas transportation, characterized in that: include: A bellows body (1) and an external connector (2) provided at the end of the bellows body (1), wherein a limit slot (3) is provided on the surface of the connecting end of the external connector (2); A connecting joint (4) sleeved on the end surface of the bellows body (1) and threadedly connected to the external connecting head (2), wherein the moving range of the connecting joint (4) is limited by a stopper provided on the end of the bellows body (1), and a threaded hole (5) is provided on the surface of the connecting joint (4); A screw plug block (6) threadedly connected to the threaded hole (5); And a locking rod (7) which is fixedly connected to the bottom of the screw plug block (6) and plugged into the limiting slot (3).

2. The stainless steel corrugated hose for pressure-resistant gas transportation according to claim 1, characterized in that: The limiting member comprises a limiting ring (8) fixedly mounted on the end surface of the bellows body (1).

3. The stainless steel corrugated hose for pressure-resistant gas transportation according to claim 2, characterized in that: A sealing ring (9) in contact with the limiting ring (8) is provided in the connecting joint (4).

4. The stainless steel corrugated hose for pressure-resistant gas transportation according to claim 1, characterized in that: The inner wall of the wave crest of the bellows main body (1) is fixedly mounted with an anti-compression ring (10), and the anti-compression ring (10) is made of a steel ring material.

5. The stainless steel corrugated hose for pressure-resistant gas transportation according to claim 1, characterized in that: A cleaning mechanism is provided on the surface of the bellows body (1); The cleaning mechanism comprises a cleaning ring (11) sleeved on the surface of the bellows body (1), and a plurality of cleaning bristles (12) fixedly mounted on the inner wall of the cleaning ring (11), wherein the plurality of cleaning bristles (12) are evenly distributed in a circular array.

6. The stainless steel corrugated hose for pressure-resistant gas transportation according to claim 5, characterized in that: A fixing block (13) is symmetrically fixedly mounted on the surface of the cleaning ring (11), and rubber pads (14) are fixedly mounted on both the upper and lower side surfaces of the fixing block (13).

7. The stainless steel corrugated hose for pressure-resistant gas transportation according to claim 6, characterized in that: A ring-shaped protective shell (15) is fixedly mounted on the surface of one end of the bellows body (1), the cleaning ring (11) is located inside the protective shell (15), and a notch that matches the fixed block (13) is symmetrically opened on one end surface of the protective shell (15).

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