CN113043605A - Connecting joint and connecting method for preventing air leakage and water leakage of fabric reinforced plastic hose - Google Patents
Connecting joint and connecting method for preventing air leakage and water leakage of fabric reinforced plastic hose Download PDFInfo
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- CN113043605A CN113043605A CN202110171473.8A CN202110171473A CN113043605A CN 113043605 A CN113043605 A CN 113043605A CN 202110171473 A CN202110171473 A CN 202110171473A CN 113043605 A CN113043605 A CN 113043605A
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- reinforced plastic
- fabric reinforced
- plastic hose
- water leakage
- preventing air
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- 238000000034 method Methods 0.000 title claims abstract description 20
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- 230000004927 fusion Effects 0.000 claims abstract description 21
- 238000007731 hot pressing Methods 0.000 claims abstract description 20
- 229920003023 plastic Polymers 0.000 claims abstract description 20
- 239000004033 plastic Substances 0.000 claims abstract description 20
- 238000000576 coating method Methods 0.000 claims abstract description 15
- 229920002396 Polyurea Polymers 0.000 claims abstract description 14
- 238000005507 spraying Methods 0.000 claims abstract description 5
- 239000002131 composite material Substances 0.000 claims abstract description 3
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/04—Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
- B29C66/022—Mechanical pre-treatments, e.g. reshaping
- B29C66/0224—Mechanical pre-treatments, e.g. reshaping with removal of material
- B29C66/02241—Cutting, e.g. by using waterjets, or sawing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/03—After-treatments in the joint area
- B29C66/038—Covering the joint by a coating material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said articles
- B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
- B29C66/4326—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms for making hollow articles or hollow-preforms, e.g. half-shells
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/53—Joining single elements to tubular articles, hollow articles or bars
- B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/24—Pipe joints or couplings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention belongs to the technical field of composite material pipeline connection, and particularly relates to a connecting joint and a method for preventing a fabric reinforced plastic hose from air leakage and water leakage. The invention adopts plastic membranes such as PU, PVC and the like as a central connecting body, then adopts a mode of hot pressing fusion of a high frequency machine and spray coating of polyurea coatings to connect the central connecting body and the fabric reinforced plastic hose, and obtains the connecting joint for preventing the fabric reinforced plastic hose from air leakage and water leakage.
Description
Technical Field
The invention belongs to the technical field of composite material pipeline connection, and particularly relates to a connecting joint and a connecting method for preventing a fabric reinforced plastic hose from air leakage and water leakage.
Background
Outdoor sports are a group of sports items held in natural environments, narrow outdoor sports comprise extreme and sub-extreme sports such as mountaineering, rock climbing, cliff fast descent, kayaking, diving, sailing, directional sports and the like, and generalized outdoor sports refer to 'going out of home, namely, outdoors'. The outdoor activities not only can improve the physical health, but also can relieve the working pressure, smelt the temperament and improve the survival ability of people. With the development of society and the improvement of living standard of people, people pursue natural and healthy living ideas, outdoor exercises are favored by people, and the industry of outdoor products is developed along with the rise of outdoor exercises.
Inflatable tents, temporary dwellings, inflatable mosquito nets, inflatable boats, inflatable flying bodies, inflatable helmets, military tents, disaster commanders, inflatable rods, beach inflatable sofas, and the like are indispensable equipment for outdoor activities. The frequent quality problems of inflatable tents, inflatable boats and the like are air leakage, and the parts which are most prone to air leakage are splicing connection points, in particular to inflatable soft support rods which play a supporting role. The traditional inflatable soft supporting rod is usually made of airtight cloth or PU and other polymer materials, and the middle joint of the inflatable soft supporting rod is welded and sealed by a high-frequency machine, wherein the high-frequency machine adopts the working principle that high-frequency electromagnetic fields are utilized to enable the molecules in a processed product to violently collide with each other to generate high temperature, so that the purposes of welding and fusion are achieved under the action of mechanical pressure and a mold, but the mold starts to loosen when the high-frequency machine is started for a long time, so that the pressure is uneven, the heat is not uniformly transmitted, and further the air leakage phenomenon exists.
The fabric reinforced plastic hose is composed of a fabric reinforced layer and a liner, the liner is a plastic layer, the plastic hose can be divided into a water delivery fabric reinforced plastic hose, a compressed air fabric reinforced plastic hose and the like according to different inner storage objects, the hoses are connected by a stop valve, the stop valve is overweight in self weight and overlarge in volume, the application of the stop valve in outdoor inflatable articles is greatly limited, more fire hoses are connected, and the stop valve cannot effectively prevent air leakage.
How to overcome the air leakage and water leakage at the middle joint of the soft support rod of the inflatable product or the joint between the fabric reinforced plastic hoses is a difficult point and a key point of the research in the field of the current outdoor products.
Disclosure of Invention
To overcome the disadvantages and shortcomings of the prior art, it is a primary object of the present invention to provide a connection method for preventing air leakage and water leakage of a fabric reinforced plastic hose.
It is still another object of the present invention to provide a connection joint obtained by the above connection method.
It is a further object of the present invention to provide a use of the above-described connection joint.
The purpose of the invention is realized by the following technical scheme:
a connection method for preventing air leakage and water leakage of a fabric reinforced plastic hose comprises the following steps:
(1) preparing a central connector: cutting the plastic membranes according to the shapes of the connecting pieces, then respectively placing the two cut plastic membranes on an upper die and a lower die of a high-frequency machine, and welding the outer peripheral edges of the two plastic membranes together by utilizing the hot-pressing fusion of the high-frequency machine to obtain a central connecting body, wherein the central connecting body is used for not performing the hot-pressing fusion on an interface connected with the fabric reinforced plastic hose;
(2) connecting the fabric reinforced plastic hose with the central connecting body prepared in the step (1), wherein a lining part (plastic part) at one end of the fabric reinforced plastic hose and an interface part of the central connecting body are overlapped and sleeved to form a hollow tube cavity; then, utilizing the hot-pressing fusion of a high-frequency machine table to weld and fuse the overlapped sleeved parts together, thereby completing the primary connection of the fabric reinforced plastic hose and the central connecting body;
(3) spraying polyurea coatings on the whole central connector, the superposed sleeved part of the fabric reinforced plastic hose and the central connector and the vicinity of the superposed sleeved part, so as to complete the connection of the fabric reinforced plastic hose and the central connector and form a connection joint for preventing the fabric reinforced plastic hose from leaking air and water;
the plastic membrane in the step (1) is a PU membrane or a PVC membrane;
the thickness of the plastic film in the step (1) is preferably more than 0.001 mm;
the connecting pieces in the step (1) can be in the shape of a straight line, a cross, a T, an L, a six-limb frame, an eight-limb frame and other connecting pieces with different shapes;
the lining of the fabric reinforced plastic hose in the step (2) is PU or PVC, and the outer layer is a fabric reinforced layer;
the thickness of the inner lining of the fabric reinforced plastic hose in the step (2) is preferably more than 0.001 mm;
the fabric is preferably at least one of cotton, flax and chemical fibers;
the chemical fiber is preferably at least one of acrylic fiber, nylon and the like;
the length of the overlapping sleeve in the step (2) is preferably 2-15 cm;
the position near the overlapping sleeving part in the step (3) is a position with the length of 3-30 cm near the overlapping sleeving part;
the polyurea coating in the step (3) can be LINE X polyurea coating (America), simian diamond (China) and other polyurea coatings;
the polyurea coating in the step (3) can also be coated on other parts of the fabric reinforced plastic hose;
the thickness of the polyurea coating coated in the step (3) is preferably 0.1-5 mm;
a connecting joint for preventing air leakage and water leakage of a fabric reinforced plastic hose is prepared by the method;
the connecting joint for preventing the fabric reinforced plastic hose from air leakage and water leakage is applied to conveying and storing water, air and the like;
the connecting joint for preventing the fabric reinforced plastic hose from air leakage and water leakage is applied to the field of outdoor product preparation;
compared with the prior art, the invention has the following advantages and effects:
(1) the invention adopts PU, PVC and other plastic membranes as the central connecting body, and has the characteristics of light weight, small volume, convenient carrying, simple and quick support and low cost.
(2) The central connector and the fabric reinforced plastic hose can be better connected by adopting a mode of combining hot pressing fusion of a high-frequency machine with spraying of a polyurea coating, wherein the polyurea coating has the characteristics of quick curing, insensitivity to moisture and humidity, no influence of ambient temperature and humidity during operation, good wear resistance, good flexibility, high strength, corrosion resistance, aging resistance, compact coating, good sealing property, no air and water leakage and the like.
(3) The connection joint for preventing the air leakage and water leakage of the fabric reinforced plastic hose provided by the invention can be manufactured into structures with various shapes and various branch styles according to actual requirements, for example: the air-tight structure is in a straight shape, a cross shape, a T shape, an L shape, a six-limb frame, an eight-limb frame and other irregular shapes and branches, can store high-pressure air with the pressure of more than 15psi, and has the characteristics of good sealing performance, no air leakage, no water leakage and the like.
(4) The connecting joint for preventing the air leakage and the water leakage of the fabric reinforced plastic hose provided by the invention has wide application, and the application field and the withstand pressure can be determined by adjusting the type and the thickness of the central connecting body and the lining of the fabric reinforced plastic hose and the material, the weave and the density of the fabric reinforcing layer of the fabric reinforced plastic hose.
(5) The connection method and the connection joint for preventing the air leakage and the water leakage of the fabric reinforced plastic hose are particularly suitable for manufacturing various inflatable outdoor articles such as inflatable housees, temporary houses, isolation tents, inflatable mosquito nets, inflatable boats, inflatable flying bodies, inflatable helmets, inflatable tents, military tents, disaster command centers, inflatable kneepads, inflatable rods, beach inflatable sofas and the like, and can effectively prevent the air leakage phenomenon.
Drawings
Fig. 1 is a product showing a connection fitting for preventing air and water leakage of a fabric reinforced plastic hose manufactured in example 1.
Fig. 2 is a schematic structural view of the inflatable soft support rod provided in embodiment 1.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited thereto.
Example 1
(1) Preparing a central connector: cutting a PU membrane with the thickness of 0.5mm according to the shape of a cross connecting piece, then respectively placing two cut plastic membranes on an upper die and a lower die of a high-frequency machine, and welding and fusing the outer peripheral edges of the two plastic membranes together by utilizing the hot-pressing fusion of the high-frequency machine (the hot-pressing fusion time is 8s) according to a conventional method to obtain a central connecting body, wherein the central connecting body is used for not performing the hot-pressing fusion on four interfaces connected with a fabric reinforced plastic hose;
(2) taking four fabric reinforced plastic hoses, wherein the inner lining of each hose is a PU (polyurethane) pipe (the thickness of the pipe wall is 0.5mm), and the outer sleeve is a fabric reinforced layer (woven fabrics of terylene, nylon and the like); removing the outer sleeve with the length of about 10cm from one end of the hose connected with the central connector, overlapping and sleeving the exposed PU pipe with the four interfaces of the central connector prepared in the step (1), and forming a hollow pipe cavity in the middle; then, utilizing the hot-pressing fusion of a high-frequency machine (the specific method is the same as the step (1)), so that the overlapped sleeved parts are welded and fused together, and further finishing the primary connection of the fabric reinforced plastic hose and the central connecting body;
(3) and (3) spraying LINE X polyurea coating with the thickness of 1.0mm on the whole central connector, the superposed sleeved part of the fabric reinforced plastic hose and the central connector and a part of 30cm close to the superposed sleeved part, and further completing the connection of the fabric reinforced plastic hose and the central connector to form a connection joint for preventing the fabric reinforced plastic hose from leaking air and water. Fig. 1 is a product showing a joint connector for preventing air leakage and water leakage of a fabric reinforced plastic hose according to the present embodiment, wherein a gray portion is a joint connector for preventing air leakage and water leakage of a fabric reinforced plastic hose, and a surface of the joint connector is coated with a polyurea type coating.
(4) And (3) further processing the product prepared in the step (3) according to the conventional method, and inflating to obtain the inflatable soft support rod for the inflatable tent, wherein the structural schematic diagram is shown in figure 2. The inflatable soft supporting rod can last for more than 3 months after being inflated, and the pressure can reach more than 130 psi.
Example 2
(1) Preparing a central connector: cutting a PU membrane with the thickness of 0.8mm according to the shape of a cross connecting piece, then respectively placing two cut plastic membranes on an upper die and a lower die of a high-frequency machine, and welding and fusing the outer peripheral edges of the two plastic membranes together by utilizing the hot-pressing fusion of the high-frequency machine (the hot-pressing fusion time is 10s) according to a conventional method to obtain a central connecting body, wherein the central connecting body is used for not performing the hot-pressing fusion on four interfaces connected with a fabric reinforced plastic hose;
(2) taking four fabric reinforced plastic hoses, wherein the inner lining of each hose is a PU (polyurethane) pipe (the thickness of the pipe wall is 0.5mm), and the outer sleeve is a fabric reinforced layer (nylon braided fabric); removing the outer sleeve with the length of about 8cm from one end of the hose connected with the central connector, overlapping and sleeving the exposed PU pipe with the four interfaces of the central connector prepared in the step (1), and forming a hollow pipe cavity in the middle; then, utilizing the hot-pressing fusion of a high-frequency machine (the specific method is the same as the step (1)), so that the overlapped sleeved parts are welded and fused together, and further finishing the primary connection of the fabric reinforced plastic hose and the central connecting body;
(3) the whole central connector, the superposed sleeved part of the fabric reinforced plastic hose and the central connector and a part 20cm close to the superposed sleeved part are sprayed with LINE X polyurea coating, the thickness is 0.5mm, and then the connection of the fabric reinforced plastic hose and the central connector is completed, so that a connection joint for preventing the fabric reinforced plastic hose from leaking air and water is formed;
(4) and (4) further processing the product prepared in the step (3) according to a conventional method, and inflating to obtain the inflatable soft supporting rod for the inflatable tent, wherein the inflatable soft supporting rod can last for more than 3 months after being inflated, and the pressure can reach more than 130 psi.
Example 3
(1) Preparing a central connector: cutting a PU membrane with the thickness of 0.1mm according to the shape of a cross connecting piece, then respectively placing two cut plastic membranes on an upper die and a lower die of a high-frequency machine, and welding and fusing the outer peripheral edges of the two plastic membranes together by utilizing the hot-pressing fusion of the high-frequency machine (the hot-pressing fusion time is 3s) according to a conventional method to obtain a central connecting body, wherein the central connecting body is used for not performing the hot-pressing fusion on four interfaces connected with a fabric reinforced plastic hose;
(2) taking four fabric reinforced plastic hoses, wherein the inner lining of each hose is a PU (polyurethane) pipe (the thickness of the pipe wall is 0.5mm), and the outer sleeve is a fabric reinforced layer (nylon braided fabric); removing the outer sleeve with the length of about 15cm from one end of the hose connected with the central connector, overlapping and sleeving the exposed PU pipe with the four interfaces of the central connector prepared in the step (1), and forming a hollow pipe cavity in the middle; then, utilizing the hot-pressing fusion of a high-frequency machine (the specific method is the same as the step (1)), so that the overlapped sleeved parts are welded and fused together, and further finishing the primary connection of the fabric reinforced plastic hose and the central connecting body;
(3) the whole central connector, the superposed sleeved part of the fabric reinforced plastic hose and the central connector and a part 15cm near the superposed sleeved part are sprayed with LINE X polyurea coating, the thickness is 2.0mm, and then the connection of the fabric reinforced plastic hose and the central connector is completed, so that a connection joint for preventing the fabric reinforced plastic hose from leaking air and water is formed;
(4) and (4) further processing the product prepared in the step (3) according to a conventional method, and inflating to obtain the inflatable soft supporting rod for the inflatable tent, wherein the inflatable soft supporting rod can last for more than 3 months after being inflated, and the pressure can reach more than 130 psi.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (10)
1. A connection method for preventing air leakage and water leakage of a fabric reinforced plastic hose is characterized by comprising the following steps:
(1) preparing a central connector: cutting the plastic membranes according to the shapes of the connecting pieces, then respectively placing the two cut plastic membranes on an upper die and a lower die of a high-frequency machine, and welding the outer peripheral edges of the two plastic membranes together by utilizing the hot-pressing fusion of the high-frequency machine to obtain a central connecting body, wherein the central connecting body is used for not performing the hot-pressing fusion on an interface connected with the fabric reinforced plastic hose;
(2) connecting the fabric reinforced plastic hose with the central connecting body prepared in the step (1), wherein a lining part (plastic part) at one end of the fabric reinforced plastic hose and an interface part of the central connecting body are overlapped and sleeved to form a hollow tube cavity; then, utilizing the hot-pressing fusion of a high-frequency machine table to weld and fuse the overlapped sleeved parts together, thereby completing the primary connection of the fabric reinforced plastic hose and the central connecting body;
(3) and spraying polyurea coating on the whole central connector, the superposed sleeved part of the fabric reinforced plastic hose and the central connector and the vicinity of the superposed sleeved part, so as to complete the connection of the fabric reinforced plastic hose and the central connector and form a connection joint for preventing the fabric reinforced plastic hose from leaking air and water.
2. The connection method for preventing air and water leakage of a fabric reinforced plastic hose according to claim 1, wherein:
the plastic membrane in the step (1) is a PU membrane or a PVC membrane.
3. The connection method for preventing air and water leakage of a fabric reinforced plastic hose according to claim 1, wherein:
the thickness of the plastic film in the step (1) is more than 0.001 mm.
4. The connection method for preventing air and water leakage of a fabric reinforced plastic hose according to claim 1, wherein:
the connecting piece in the step (1) is a connecting piece in the shape of a straight line, a cross, a T, an L, a six-limb frame or an eight-limb frame.
5. The connection method for preventing air and water leakage of a fabric reinforced plastic hose according to claim 1, wherein:
the fabric reinforced plastic material is a composite material with a lining of PU or PVC and an outer layer of a fabric reinforced layer.
6. The connection method for preventing air and water leakage of a fabric reinforced plastic hose according to claim 1, wherein:
the length of the overlapping sleeve in the step (2) is 2-15 cm.
7. The connection method for preventing air and water leakage of a fabric reinforced plastic hose according to claim 1, wherein:
the position near the overlapping sleeving part in the step (3) refers to a position with the length of 3-30 cm near the overlapping sleeving part.
8. A joint for preventing air and water leakage of a fabric reinforced plastic hose, which is prepared by the method of any one of claims 1 to 7.
9. Use of the connection joint for preventing air leakage and water leakage of a fabric reinforced plastic hose according to claim 8 for transporting and storing water and air.
10. Use of the connection fitting of claim 8 for preventing air and water leakage in a fabric reinforced plastic hose in the field of outdoor product preparation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110171473.8A CN113043605A (en) | 2021-02-08 | 2021-02-08 | Connecting joint and connecting method for preventing air leakage and water leakage of fabric reinforced plastic hose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110171473.8A CN113043605A (en) | 2021-02-08 | 2021-02-08 | Connecting joint and connecting method for preventing air leakage and water leakage of fabric reinforced plastic hose |
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| Publication Number | Publication Date |
|---|---|
| CN113043605A true CN113043605A (en) | 2021-06-29 |
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| CN202110171473.8A Pending CN113043605A (en) | 2021-02-08 | 2021-02-08 | Connecting joint and connecting method for preventing air leakage and water leakage of fabric reinforced plastic hose |
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Citations (8)
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| US5411300A (en) * | 1993-03-16 | 1995-05-02 | Toyoda Gosei Co., Ltd. | Hose connecting assembly |
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| CN104441613A (en) * | 2014-12-10 | 2015-03-25 | 中潜股份有限公司 | Sewing process of waterproof clothing and sewing wheel applicable to ultrasonic welding machine |
| CN210460153U (en) * | 2019-04-09 | 2020-05-05 | 安钟京 | Novel inflatable support frame and novel tent |
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