CN218510390U

CN218510390U - Metal coated hose for gas

Info

Publication number: CN218510390U
Application number: CN202222895242.4U
Authority: CN
Inventors: 吴逸帆; 王胜彬; 翟楠希; 王硙; 李彦爽; 赵晓红; 王晓岗; 罗志国
Original assignee: HANGZHOU WANQUAN METAL HOSE CO Ltd
Current assignee: HANGZHOU WANQUAN METAL HOSE CO Ltd
Priority date: 2022-11-01
Filing date: 2022-11-01
Publication date: 2023-02-21
Anticipated expiration: 2032-11-01

Abstract

The utility model relates to the field of gas appliances, in particular to a metal-coated hose for gas, which comprises a hose body, wherein the hose body comprises a coating layer, a woven sleeve and an inner sleeve which are sequentially sleeved from outside to inside; the outer side of the coating layer is further sleeved with a hoop, the hoop is located between the free end of the hose body and the outer clamping ring, and the hoop is used for clamping the hose body with a hose connector; the utility model aims at overcoming prior art not enough and providing a metal clad hose for gas can carry out the relative fixation in order to avoid the inner tube of hose and the braided sleeve in its outside to take place relative slip to the multilayer structure of hose, and then guarantees hose and hose nipple's leakproofness.

Description

Metal coated hose for gas

Technical Field

The utility model relates to a gas apparatus field especially relates to a gas metal cladding hose.

Background

The coated hose mainly comprises an inner tube, a woven sleeve and a coating layer, is usually connected with a hose connector and used for guiding fluid, and has two characteristics of tightness and easiness in connection in order to ensure the normal work of the hose.

In the prior art, a hose is directly sleeved outside a hose connector, and the hose connector are tightly clamped outside the hose through an adjustable clamp, but in this way, in the use and installation process of a multi-layer hose, relative sliding can occur between an inner pipe and a woven sleeve, and the inner pipe which slides relative to a coating layer can cause a pipe gap to occur in the connection between the inner pipe and the hose connector, so that fluid leakage is caused. The metal clamping piece is adopted to relatively fix the rubber tube, the metal net sleeve and the plastic sheath, the clamping force of the metal clamping piece is provided by manpower, the clamping force which can be brought is limited, and the relative sliding between the rubber tube which is connected with the hose connector and the woven sleeve can be avoided to a certain extent, but in the connection process, the rubber tube and the metal net sleeve still can slide relatively, so that how to provide the metal-coated hose for gas, the multilayer structure of the hose can be relatively fixed to avoid the relative sliding between the inner tube of the hose and the woven sleeve on the outer side of the hose, and the sealing performance of the hose and the hose connector is further ensured.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention is to overcome the deficiencies of the prior art and to provide a metal-clad hose for gas use, which can relatively fix the multi-layer structure of the hose to prevent the inner tube of the hose and the braided sheath outside the inner tube from sliding relatively, thereby ensuring the sealing performance between the hose and the hose connector.

In order to solve the technical problem, the technical scheme of the utility model is that:

a metal-coated hose for fuel gas comprises a hose body, wherein the hose body comprises a coating layer, a woven sleeve and an inner sleeve which are sequentially sleeved from outside to inside, an outer snap ring is sleeved outside the coating layer, an inner snap ring is arranged inside the inner sleeve, and the outer snap ring and the inner snap ring clamp the hose body;

the outside of coating layer is still overlapped and is equipped with the clamp, the clamp is located the free end of hose body with between the outer snap ring, the clamp is used for pressing from both sides tightly with the hose nipple the hose body.

Compare prior art, the utility model has the advantages that:

the utility model discloses when using, outer snap ring and interior snap ring are preset on the hose body, locate hose nipple's the outside with hose body cover, at this in-process, because outer snap ring and the tight effect of clamp of interior snap ring to the hose body, interior sleeve pipe can't take place to slide for weaving the cover, and the hose body is cup jointed with hose nipple and is accomplished the back, uses the clamp to lock at the coating, presss from both sides tightly through clamp and hose nipple cooperation hose body realizes hose body and hose nipple's sealing.

The outer snap ring and the inner snap ring are preset on the hose body to realize relative fixation of the coating layer, the woven sleeve and the inner sleeve, so that relative sliding of the inner pipe of the hose and the woven sleeve is avoided, and the tightness of the hose and the hose connector is further ensured.

Preferably, outer snap ring includes to splenium and joint portion, joint portion with interior snap ring presss from both sides the hose body still includes movable snap ring, movable snap ring with the connection can be dismantled to interior snap ring, movable snap ring includes detached state and connection status, during connection status, movable snap ring with interior snap ring is connected, support splenium with movable snap ring presss from both sides tightly the hose body, along with movable snap ring with the separation of interior snap ring, movable snap ring follows interior sheathed tube inside is deviate from, movable snap ring switches into detached state.

Preferably, the movable clamping ring is fixedly provided with a connecting part, and the inner clamping ring is in threaded connection with the connecting part.

Preferably, a wrench hole for connecting a wrench is fixedly arranged on the inner wall of the connecting part.

Preferably, a second sealing ring for abutting against and sealing the hose connector is arranged on the inner wall of the movable clamping ring.

Preferably, the outer ring radius of the movable snap ring is gradually reduced from the free end of the movable snap ring to the direction of the inner snap ring.

Preferably, the radius of the inner ring of the pressing portion is gradually reduced from the pressing portion to the clamping portion.

Preferably, the inner wall of the inner snap ring is provided with a first sealing ring for abutting against and sealing the hose connector.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of the separated state of the present invention;

fig. 3 is a schematic structural diagram of a first connection state of the present invention;

FIG. 4 isbase:Sub>A schematic cross-sectional view taken along line A-A of FIG. 3;

fig. 5 is a schematic structural diagram of a second connection state of the present invention;

fig. 6 is an enlarged schematic view of B of fig. 5.

Reference numerals are as follows: 10. a coating layer; 11. weaving a sleeve; 12. an inner sleeve; 13. clamping a hoop; 20. an outer snap ring; 21. a pressing part; 22. a clamping part; 23. an inner snap ring; 24. a first seal ring; 30. a connecting portion; 31. a limiting block; 32. and a second seal ring.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so as to make the technical solutions of the present invention easier to understand and grasp.

The embodiment provides a metal clad hose for gas can carry out the relatively fixed with the inner tube of avoiding the hose rather than the weaving cover in the outside and take place relative slippage to the multilayer structure of hose, and then guarantees that the leakproofness of hose and hose nipple still needs constantly to study.

As shown in fig. 2 and 5, in order to ensure the sealing property of the connection between the hose and the hose connector, the hose comprises a hose body, wherein the hose body comprises a coating layer 10, a woven sleeve 11 and an inner sleeve 12 which are sequentially sleeved from outside to inside, an outer snap ring 20 is sleeved outside the coating layer 10, an inner snap ring 23 is arranged inside the inner sleeve 12, and the hose body is clamped by the outer snap ring 20 and the inner snap ring 23;

a clamp 13 is further sleeved on the outer side of the coating layer 10, the clamp 13 is located between the free end of the hose body and the outer clamp ring 20, and the clamp 13 is used for clamping the hose body with a hose connector;

outer snap ring 20 includes pressing part 21 and joint portion 22, joint portion 22 with interior snap ring 23 presss from both sides tightly the hose body still includes connecting portion 30, connecting portion 30 with interior snap ring 23 can dismantle the connection through the screw thread and connect, set firmly the wrench hole 31 that is used for connecting the spanner on the inner wall of connecting portion 30, movable snap ring 32 has set firmly on connecting portion 30, movable snap ring 32 includes separation state and connection status, during connection status, connecting portion 30 with interior snap ring 23 is connected, pressing part 21 with movable snap ring 32 presss from both sides tightly the hose body, along with connecting portion 30 with the separation of interior snap ring 23, movable snap ring 32 follows interior sleeve pipe 12's inside is deviate from, movable snap ring 32 switches into separation status.

When in use: outer snap ring and interior snap ring arrange in advance on the hose body, locate hose nipple's the outside with hose body cover, at this in-process, because outer snap ring and interior snap ring are to the clamping effect of hose body, interior sleeve pipe 12 can not take place to slide for weaving cover 11, and hose body and hose nipple cup joint accomplish the back, use clamp 13 to lock at coating layer 10, press from both sides tightly through clamp 13 and hose nipple cooperation hose body realizes hose body and hose nipple's sealed.

The outer clamping ring 20 and the inner clamping ring are preset on the hose body to realize relative fixation of the coating layer 10, the braided sleeve 11 and the inner sleeve 12, so that relative sliding of the inner pipe of the hose and the braided sleeve is avoided, and the sealing property of the hose and a hose joint is further ensured;

the outer clamping ring 20 and the inner clamping ring 23 are preset on the hose body, the hose body is sleeved on the outer side of the hose connector, in the process, due to the clamping effect of the outer clamping ring 20 and the inner clamping ring 23 on the hose body, the inner sleeve 12 cannot slide relative to the woven sleeve 11, after the hose body is sleeved with the hose connector, the hose body is locked on the coating layer 10 through the hoop 13, and the hose body is clamped through the cooperation of the hoop 13 and the hose connector, so that the hose body and the hose connector are sealed;

in installing in the use, when the hose received the tractive, stress concentration in the department that compresses tightly of hose, here ageing fracture takes place most easily, the inside of sleeve pipe 12 is packed into with connecting portion 30 this moment, use spanner connection wrench hole 31, wrench hole 31 rotates with connecting portion 30 through spanner control, connecting portion 30 is connected with interior snap ring 23 and drives activity snap ring 32 and remove, activity snap ring 32 is removing the in-process and is pressing from both sides tight hose body with pressing portion 21, the clamping position of hose body changes this moment, when the hose received the tractive, the stress concentration position of hose changed to new clamping position thereupon, new clamping position is more weak than old clamping position ageing degree, the durability is stronger, and then realize the life of extension hose body.

As shown in fig. 2 and 3, in order to improve the sealing performance between the hose and the hose connector, a first sealing ring 24 for abutting against the hose connector for sealing is disposed on an inner wall of the inner snap ring 23. And a second sealing ring 33 for abutting against and sealing the hose connector is arranged on the inner wall of the movable clamping ring 32.

When in use: through the arrangement of the first sealing ring 24 and the second sealing ring 33, when the hose body is connected with the hose connector in a separated state, the hose connector is pressed and sealed with the first sealing ring 24; in the connection state, when the hose body is connected to the hose connector, the hose connector abuts against the second seal ring 33 for sealing.

With reference to fig. 5 and 6, in order to disperse the clamping force and further prolong the service life of the hose, the outer ring radius of the movable snap ring 32 is gradually reduced from the free end of the movable snap ring 32 to the direction of the inner snap ring 23, and the inner ring radius of the pressing portion 21 is gradually reduced from the pressing portion 21 to the direction of the clamping portion 22.

When in use: the cross section of the outer ring surface of the movable clamping ring 32 is an inclined surface, the cross section of the inner ring surface of the pressing part 21 is an inclined surface, and the inclined surface of the movable clamping ring 32 and the inclined surface of the pressing part 21 clamp the hose body, so that the clamping areas of the inclined surface and the pressing part are increased, the pressure born by the hose body is weakened, and the service life of the hose body is prolonged.

The above is only the typical example of the utility model, in addition, the utility model discloses can also have other multiple detailed implementation manners, all adopt the technical scheme that equivalent replacement or equivalent transform formed, all fall on the utility model discloses the scope of requiring protection.

Claims

1. The metal-coated hose for the gas comprises a hose body, wherein the hose body comprises a coating layer (10), a woven sleeve (11) and an inner sleeve (12) which are sequentially sleeved from outside to inside, and is characterized in that an outer snap ring (20) is sleeved on the outer side of the coating layer (10), an inner snap ring (23) is arranged inside the inner sleeve (12), and the outer snap ring (20) and the inner snap ring (23) clamp the hose body;

the outside of coating layer (10) is still overlapped and is equipped with clamp (13), clamp (13) are located the free end of hose body with between outer snap ring (20), clamp (13) are used for pressing from both sides with the hose nipple the hose body.

2. The metal clad hose for gas use according to claim 1, wherein the outer snap ring (20) comprises a pressing portion (21) and a clamping portion (22), the clamping portion (22) and the inner snap ring (23) clamp the hose body, the hose further comprises a movable snap ring (32), the movable snap ring (32) and the inner snap ring (23) are detachably connected, the movable snap ring (32) comprises a separation state and a connection state, the movable snap ring (32) is connected with the inner snap ring (23) in the connection state, the pressing portion (21) and the movable snap ring (32) clamp the hose body, the movable snap ring (32) separates from the inner snap ring (12), and the movable snap ring (32) is switched to the separation state.

3. The metal-clad gas hose according to claim 2, wherein the movable snap ring (32) is fixedly provided with the connecting portion (30), and the inner snap ring (23) is in threaded connection with the connecting portion (30).

4. The metal-clad gas hose according to claim 3, wherein a wrench hole (31) for connecting a wrench is fixedly formed on the inner wall of the connecting portion (30).

5. The metal-clad gas hose according to claim 2, wherein a second sealing ring (33) for press-sealing with the hose connector is provided on the inner wall of the snap ring (32).

6. The metal-clad gas hose according to claim 2, wherein the outer ring radius of said snap ring (32) is gradually reduced from the free end of said snap ring (32) toward said inner snap ring (23).

7. The metal-clad gas hose according to claim 6, wherein the inner ring radius of the pressing portion (21) is gradually reduced from the pressing portion (21) toward the catching portion (22).

8. The metal-clad gas hose according to claim 1, wherein a first seal ring (24) for press-sealing with a hose connector is provided on an inner wall of the inner snap ring (23).