Combustion gas composite hose with woven coating layer

Abstract

The utility model discloses a fuel gas composite hose with a braided cladding layer, which comprises a fuel gas composite hose and butt joint ends mounted at two ends of the fuel gas composite hose, the fuel gas composite hose comprises a soft rubber layer, a metal braided layer and a cladding layer, the soft rubber layer is positioned on the inner side of the fuel gas composite hose, and the metal braided layer is positioned on the outer side of the metal braided layer. The surface of the butt joint end is sleeved with the protective sleeve, then the connecting sleeve wraps the joint of the butt joint end and the fuel gas composite hose, the surface of the flexible rubber layer is connected with a metal braid layer, and the outer side wall of the metal braid layer is connected with a coating layer. Meanwhile, an embedding block on the inner side of the sheath is in interference fit with an embedding groove in the surface of the butt-joint end, the joint of the butt-joint end of the sheath and the connecting sleeve and the gas composite hose is stably attached, the joint of the butt-joint end and the gas composite hose is wrapped, a woven layer in the connecting end of the gas composite hose is prevented from being exposed in the air, and the service life of the gas composite hose is prolonged. And the use safety of the fuel gas composite hose is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of gas composite hose, specifically relates to a gas composite hose with braided cladding layer. BACKGROUND

[0002] The gas composite hose is made of rubber blend or rubber and plastic blend material, and is usually used for connecting the outlet of domestic bottled liquefied petroleum gas pressure regulating valve and the user's gas combustion appliance. According to the different materials and structures, the gas composite hose can be divided into various types, such as rubber composite hose, metal cladding hose, etc. The gas composite hose is generally composed of an inner rubber layer, a reinforcing layer and an outer rubber layer. The inner rubber layer directly contacts with gas and needs to have good resistance to gas corrosion and sealing property; the reinforcing layer usually adopts steel wire braiding or winding to improve the pressure resistance and tensile strength of the hose; and the outer rubber layer protects the inner layer structure and prevents external damage.

[0003] In the prior art, for example, the utility model discloses a stainless steel wire braided hose for connecting gas appliance (application number 202222029161.6), which comprises a gas rubber pipe, one end of the gas rubber pipe is fixedly installed with an injection molding soft joint, the surface of the gas rubber pipe is fixedly connected with a braided pipe inner core, the surface of the gas rubber pipe and the braided pipe inner core is fixedly connected with a fixed pipe cap, the surface of the gas rubber pipe is fixedly installed with a stainless steel braided layer, and the surface of the braided pipe inner core and the stainless steel braided layer is fixedly installed with a super flexible pipe steel sleeve. The utility model relates to the technical field of braided hose. The stainless steel wire braided hose for connecting gas appliance improves the plasticity of the gas rubber pipe by setting the stainless steel braided layer and the wrapping layer, avoids the problem of air blockage after bending, simultaneously avoids the backflow of gas through the air passage mechanism, realizes one-way transmission operation, improves the sealing property of the connection, and makes the stainless steel wire braided hose safer to use.

[0004] The above-mentioned patent focuses on enhancing the sealing performance of the gas composite hose through one-way transmission operation, and introduces the design of the stainless steel braided layer and the wrapping layer to improve the plasticity. However, this technical solution mainly focuses on the improvement of the hose itself, ignoring the potential problems in the assembly and application process. Specifically, when the gas composite hose is connected with the counter valve and used for a long time, especially after frequent bending, the connection between the hose and the valve may loosen or even break due to stress concentration, which exposes the outer braided layer. This condition not only reduces the overall durability of the hose, but also seriously weakens its safety during use. UTILITY MODEL CONTENTS

[0005] The utility model discloses a purpose lies in providing a kind of composite hose for gas with braided type cladding layer, to solve when composite hose for gas is connected with butt joint valve and long-term use, especially after experiencing frequent bending, hose and valve connection place can be loose even rupture due to stress concentration, and then lead to outer braided layer exposure.This situation not only reduces the overall durability of hose, also seriously weakens its security in use process.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of composite hose for gas with braided type cladding layer, including gas composite hose and the butt joint end head installed at the both ends of gas composite hose, the gas composite hose includes soft rubber layer, metal braided layer and cladding layer, the soft rubber layer is at the inside of gas composite hose, the surface of the soft rubber layer is connected with metal braided layer, the outside wall of the metal braided layer is connected with cladding layer;

[0007] The surface of the butt joint end head is provided with a matching groove, the surface of the butt joint end head near the gas composite hose is connected with a sheath made of silica gel, the tail end of the sheath is connected with a connecting sleeve, and the inner wall of the sheath is connected with a matching block.

[0008] The surface of the gas composite hose is connected with a first positioning block, one side of the first positioning block is connected with a receiving plate, the other end of the receiving plate is connected with a butt plate, and the other end of the butt plate is connected with a second positioning block.

[0009] To make the toughness and strength of the gas composite hose, as a kind of composite hose for gas with braided type cladding layer of the utility model preferably, the metal braided layer is composed of staggered braiding.

[0010] To make it convenient to store the gas composite hose, as a kind of composite hose for gas with braided type cladding layer of the utility model preferably, the inner opening size of the first positioning block and the second positioning block is adapted to the surface size of the gas composite hose.

[0011] To make the first positioning block and the second positioning block assemble, as a kind of composite hose for gas with braided type cladding layer of the utility model preferably, the butt plate is connected with a butt block at one end near the receiving plate, and the butt plate is butt jointed with the one end opening of the receiving plate through the butt block.

[0012] To make the gas composite hose be bound, as a kind of composite hose for gas with braided type cladding layer of the utility model preferably, the surface of the receiving plate is connected with a locking block, the opening of the locking block is movably connected with a drawbar, and the bottom end of the drawbar is connected with an elastic plate.

[0013] In order to make the first positioning block and the second positioning block fixed, as the utility model a kind of composite hose for gas with braided type cladding layer preferably, the elastic plate is flexible stainless steel material, the top of the elastic plate is connected with the locking block opening inner wall, the elastic plate is L-shaped structure.

[0014] In order to make the gas composite hose is stored and fixed, as the utility model a kind of composite hose for gas with braided type cladding layer preferably, the bottom surface of the locking block is connected with buckle, the surface of the butt joint block near buckle is provided with clamping groove, and the buckle and the clamping groove constitute the embedded structure.

[0015] Compared with prior art, the utility model has the beneficial effects that:

[0016] The utility model discloses a metal braided layer is arranged in the middle layer of gas composite hose, can significantly improve the pressure capacity of hose, which makes the hose can better withstand the high-pressure environment in gas pipeline, reduces the risk of leakage or rupture due to excessively high pressure, in addition, by the surface of the butt joint end head is sleeved with the sheath, then the connecting sleeve is wrapped in the butt joint end head and the connecting place of gas composite hose, the embedded block in the inside of sheath and the embedded groove on the surface of butt joint end head are interference fit, the sheath and connecting sleeve are adhered stably to the butt joint end head and the connecting place of gas composite hose, the connecting place of butt joint end head and gas composite hose is wrapped, avoids that the braided layer in the inside of gas composite hose connecting end head is exposed to air, improves the security of gas composite hose use. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings are used to provide further understanding of the utility model, and constitute part of the specification, and are used to explain the utility model along with the embodiments of the utility model, and do not constitute the limitation to the utility model.In the drawings:

[0018] Figure 1 It is the whole assembly structure schematic drawing of gas composite hose of composite hose for gas with braided type cladding layer.

[0019] Figure 2 It is the whole structure schematic drawing of sheath of composite hose for gas with braided type cladding layer.

[0020] Figure 3 It is the sheath cross section structure schematic drawing of composite hose for gas with braided type cladding layer.

[0021] Figure 4 It is the gas composite hose component structure schematic drawing of composite hose for gas with braided type cladding layer.

[0022] Figure 5 It is the first positioning block and the second positioning block connection structure schematic drawing of composite hose for gas with braided type cladding layer.

[0023] Figure 6 The first positioning block and the second positioning block profile structure schematic diagram of the composite hose for gas with braided type covering layer.

[0024] Figure 7 The elastic plate connecting structure schematic diagram of the composite hose for gas with braided type covering layer.

[0025] In the figure: 1, the gas composite hose; 101, the soft rubber layer; 102, the metal braided layer; 103, the covering layer; 2, the butt joint end; 201, the embedded groove; 202, the sheath; 203, the connecting sleeve; 204, the embedded block; 3, the first positioning block; 4, the receiving plate; 5, the butt joint plate; 6, the second positioning block; 7, the butt joint block; 8, the locking block; 9, the pull rod; 10, the elastic plate; 11, the buckle; 12, the clamping groove. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] Please refer to Figures 1-7 The present application provides the following technical solutions: a composite hose for gas with braided type covering layer, comprising a gas composite hose 1 and a butt joint end 2 installed at both ends of the gas composite hose 1, wherein the gas composite hose 1 comprises a soft rubber layer 101, a metal braided layer 102 and a covering layer 103; the soft rubber layer 101 is located on the inner side of the gas composite hose 1; the surface of the soft rubber layer 101 is connected with the metal braided layer 102; and the outer side wall of the metal braided layer 102 is connected with the covering layer 103.

[0028] The surface of the butt joint end 2 is provided with an embedded groove 201; the surface of the butt joint end 2 close to the gas composite hose 1 is connected with a sheath 202 made of silica gel; the tail end of the sheath 202 is connected with a connecting sleeve 203; and the inner wall of the sheath 202 is connected with an embedded block 204. ， The sheath 202 and the connecting sleeve 203 are made of rubber material; and the connecting end of the butt joint end 2 and the gas composite hose 1 forms a sealing structure through the externally sleeved sheath 202 and connecting sleeve 203.

[0029] The surface of the gas composite hose 1 is connected with a first positioning block 3; one side of the first positioning block 3 is connected with a receiving plate 4; the other end of the receiving plate 4 is connected with a butt joint plate 5; and the other end of the butt joint plate 5 is connected with a second positioning block 6.

[0030] Preferably, the metal braid layer 102 is formed by interlacing.

[0031] In specific use, the metal braid layer 102 is used to improve the toughness and strength of the gas composite hose 1, and improve the sealing performance of the gas composite hose 1.

[0032] Preferably, the first positioning block 3 and the second positioning block 6 are internally sized to match the surface size of the gas composite hose 1.

[0033] In specific use, the first positioning block 3 and the second positioning block 6 are used to facilitate the storage of the gas composite hose 1.

[0034] Preferably, the docking plate 5 is connected to the end of the receiving plate 4, and the docking plate 5 is connected to the end of the receiving plate 4 through the docking block 7.

[0035] In specific use, the docking block 7 is connected to the receiving plate 4 to facilitate the assembly of the first positioning block 3 and the second positioning block 6.

[0036] Preferably, the receiving plate 4 is connected to the surface of the locking block 8, the locking block 8 is movably connected to the opening of the locking block 8, and the bottom end of the locking block 8 is connected to the elastic plate 10.

[0037] In specific use, the elastic plate 10 is deformed by pulling the pull rod 9.

[0038] Preferably, the elastic plate 10 is made of flexible stainless steel, the top end of the elastic plate 10 is connected to the inner wall of the opening of the locking block 8, and the elastic plate 10 is an L-shaped structure.

[0039] In specific use, the elastic plate 10 is deformed to drive the buckle 11 to move up and down, thereby facilitating the limiting and fixing of the docking block 7.

[0040] Preferably, the bottom surface of the locking block 8 is connected to the buckle 11, the surface of the docking block 7 near the buckle 11 is provided with a clamping groove 12, and the buckle 11 and the clamping groove 12 form a fitting structure.

[0041] In specific use, the buckle 11 is fitted with the clamping groove 12 on the surface of the docking block 7 to facilitate the docking and fixing of the first positioning block 3 and the second positioning block 6.

[0042] The utility model discloses a working principle when using specifically: through adopting that metal braid layer 102 set up in the middle layer of gas composite hose 1, can improve the pressure capacity of hose obviously, this makes the hose can better bear the high pressure environment in gas pipeline, reduces the leakage or rupture risk caused by excessively high pressure, can improve the mechanical damage resistance of gas composite hose 1 obviously, this includes the scratch of resisting sharp object, extrusion and the impact of external force, thereby prolonging the service life of gas composite hose 1 and reducing maintenance cost, in addition, through the sheath 202 sleeve joint in the surface of the butt joint end 2, then connect the sleeve 203 and wrap in the butt joint end 2 and gas composite hose 1 connecting place, simultaneously, the inlaying block 204 in the sheath 202 inside and the inlaying groove 201 on the surface of butt joint end 2 carry out interference fit, the sheath 202 and connecting sleeve 203 butt joint end 2 and gas composite hose 1 connecting place adhere stable, and the butt joint end 2 and gas composite hose 1 connecting place are wrapped, avoid the braid layer in the connecting end head of gas composite hose 1 to be exposed to air, improved the security of gas composite hose 1 use, in addition, through the butt joint block 7 of butt joint plate 5 one end and the butt joint of receiving plate 4, make first locating block 3 and second locating block 6 butt joint positioning, simultaneously, pull the pull rod 9 on the surface of locking block 8, drive the elastic plate 10 to change, then the butt joint block 7 position adjustment on the one side of receiving plate 4, then loosen the pull rod 9, at this time, the buckle 11 on the bottom surface of elastic plate 10 and the clamping groove 12 on the surface of butt joint block 7 inlaying, improve the convenience of gas composite hose 1 storage.

[0043] Finally, it should be noted that: the above only for preferred embodiment of the utility model has been described, and does not limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part technical feature. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. A composite gas hose having a braided type cover, comprising a gas composite hose (1) and a butt end (2) installed at both ends of the gas composite hose (1), characterized in that: The gas composite hose (1) comprises a soft rubber layer (101), a metal braid layer (102) and a coating layer (103), the soft rubber layer (101) is on the inner side of the gas composite hose (1), the surface of the soft rubber layer (101) is connected with the metal braid layer (102), and the outer side wall of the metal braid layer (102) is connected with the coating layer (103). The surface of the butt joint end (2) is provided with a matching groove (201), the surface of the butt joint end (2) near the gas composite hose (1) is connected with a sheath (202) made of silica gel, the tail end of the sheath (202) is connected with a connecting sleeve (203), and the inner wall of the sheath (202) is connected with a matching block (204). The surface of the gas composite hose (1) is connected with a first positioning block (3), one side of the first positioning block (3) is connected with a receiving plate (4), the other end of the receiving plate (4) is connected with a butt joint plate (5), and the other end of the butt joint plate (5) is connected with a second positioning block (6).

2. The composite gas hose with braided cover layer according to claim 1, characterized in that: The metal braid layer (102) is composed of staggered weaving.

3. The composite gas hose with braided cover layer according to claim 1, characterized in that: The inner opening size of the first positioning block (3) and the second positioning block (6) is matched with the surface size of the gas composite hose (1).

4. The composite gas hose with braided cover layer according to claim 1, characterized in that: The butt joint plate (5) is connected with a butt joint block (7) at one end near the receiving plate (4), and the butt joint plate (5) is connected with the receiving plate (4) through the butt joint block (7) and the opening at one end of the receiving plate (4).

5. The composite gas hose with braided cover layer according to claim 4, characterized in that: The surface of the receiving plate (4) is connected with a locking block (8), the opening of the locking block (8) is movably connected with a pull rod (9), and the bottom end of the pull rod (9) is connected with an elastic plate (10).

6. The composite gas hose with braided cover layer according to claim 5, characterized in that: The elastic plate (10) is made of flexible stainless steel, the top end of the elastic plate (10) is connected with the inner wall of the opening of the locking block (8), and the elastic plate (10) is of L-shaped structure.

7. The composite gas hose with braided cover layer according to claim 5, characterized in that: The bottom surface of the locking block (8) is connected with a buckle (11), the surface of one side of the butt joint block (7) near the buckle (11) is provided with a clamping groove (12), and the buckle (11) and the clamping groove (12) form a matching structure.

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