Improved self-sealing one-way water stop valve and water pipe connector with water stop and self-sealing functions

Abstract

The utility model relates to the field of water heating products, in particular to an improved self-sealing one-way water stop valve and a water pipe connector with a water stop self-sealing function, the structure comprises a core, a fixed connection structure and a sealing structure, the core comprises a self-closing structure capable of automatically closing water flow and an opening structure capable of automatically pushing to open water flow, the fixed connection structure is arranged on the outer side of the core, and the sealing structure is used for anti-leakage sealing of the core and the inner side of the water pipe connector, the core and a water inlet of the water outlet valve or the core and the inner side of the water pipe connector and the water inlet of the water outlet valve. The opening structure comprises a self-closing structure, an anti-explosion opening rod capable of abutting against the internal structure of the water outlet valve is connected to the end, facing the outer end of the core, of the self-closing structure, and the self-closing structure can be pushed by pushing the anti-explosion opening rod. When a water outlet valve is installed through the water pipe connector of the valve, a self-sealing unsintered tape can be used, a plug does not need to be installed, water outlet valves such as a faucet and a triangular valve can be directly installed to be communicated with water flow, and automatic sealing and water stopping can be achieved when the water outlet valve bursts.

Description

Technical Field

[0001] The utility model relates to the field of water heating products, in particular to a new type of water heating product used for water pipe joints of water outlet valves such as faucets and angle valves. Background Art

[0002] Chinese patent application number 202323292846.0, application date December 1, 2023, is a utility model patent application for a self-sealing one-way water stop valve and a water pipe joint with a water-stop self-sealing function. The water pipe joint equipped with this structural product can achieve self-sealing when it is not connected to water outlet control parts such as faucets and triangle valves, and there is no need to install a plug. When installing and connecting water outlet control parts such as faucets and triangle valves, it can be used without wrapping raw tape to prevent water leakage. It can reduce the trouble of frequently opening and closing the main switch during water line installation testing, maintenance and replacement of faucets, etc., and does not require professional technicians to install, repair, replace, etc. Operation, so the product structure setting of this patent application provides a new type of plumbing product with obvious excellent effects.

[0003] In real life, when the owner is away, the faucet breaks or the valve core bursts, causing water to overflow into the indoor room, resulting in serious damage to the furniture and wooden floors soaked in water. This is a problem that many owners worry about when they are away, and it is also a problem that businesses are afraid of encountering, such as consumers filing lawsuits and bringing high compensation. In response to this problem, the applicant conducted research and improvement on the above-mentioned patent application product, which led to this case. Utility Model Content

[0004] The utility model aims to provide an improved self-sealing one-way water stop valve which can be used in a water pipe joint of a water outlet valve such as a faucet or a triangular valve, can realize self-sealing, can directly connect the water outlet valve to the water flow, and can automatically seal and stop water in the event of a burst in the water outlet valve.

[0005] Another object of the utility model is to provide a water pipe joint with a water-stopping and self-sealing function, which has a water-stopping function when a water outlet valve is not installed, can be directly installed on the water outlet valve to realize self-sealing and connect the water flow, and can automatically seal and stop water in the event of a burst of the water outlet valve.

[0006] To achieve the above-mentioned purpose, the technical solution of the utility model is: an improved self-sealing one-way water stop valve, which is embedded and installed on a water pipe joint for connecting a water supply valve to water outlet when in use, and the structure includes a core, a fixing structure and a sealing structure. The core includes a self-closing structure that can automatically close the water flow when the water pipe joint is not connected to the water outlet valve, and also includes an opening structure that can automatically push to open the water flow when the water pipe joint is connected to the water outlet valve. The fixing structure is arranged on the outside of the core for fixing the core on the water pipe joint. The sealing structure is used for leak-proof sealing between the core and the inner side of the water pipe joint and / or between the core and the water inlet of the water outlet valve and / or between the core and the inner side of the water pipe joint and the water inlet of the water outlet valve. The opening structure includes that the self-closing structure is connected to an end facing the outer end of the core with an explosion-proof opening rod that can penetrate from the water inlet of the water outlet valve and press on the internal structure of the water outlet valve, and the self-closing structure can be pushed by pushing the explosion-proof opening rod.

[0007] The self-closing structure is provided with an opening rod connecting piece, and the explosion-proof opening rod is connected to the opening rod connecting piece by a connecting structure that can be axially adjusted and positioned; or, the self-closing structure is provided with an opening rod guide sleeve, and the explosion-proof opening rod can be axially movably inserted into the opening rod guide sleeve and an elastic adaptive pushing piece is sleeved on the inner end of the opening rod guide sleeve, one end of the elastic adaptive pushing piece is pressed against the explosion-proof opening rod, and the other end is pressed against the self-closing structure, and the explosion-proof opening rod adaptively adjusts the axial position and pushes the self-closing structure through the elastic adaptive pushing piece.

[0008] The explosion-proof opening rod top is provided with an explosion-proof top block which is fixed, detachable or detachable and can be axially adjusted and positioned on the end of the internal structure of the water outlet valve.

[0009] The fixing structure is that the outer side of the core and the inner side of the water pipe joint are locked and connected by a threaded structure, or the fixing structure is that the outer wall of the core and the inner wall of the water pipe joint are provided with a positioning and matching structure that combines with each other to prevent circumferential rotation and axial movement; and / or, the core is embedded in the water pipe joint when installed, or the inner end of the core is embedded in the water pipe joint, and the outer end of the core is exposed outside the water pipe joint for installation and connection of the water outlet valve.

[0010] The sealing structure includes an inner end sealing structure that seals between the inner end of the core and the inner side of the water pipe joint, and the inner end sealing structure is an inner end sealing member that is sleeved or padded on the inner end of the core and is used to tightly fit with the circumferential side wall, step ring or internal thread in the water pipe joint; and / or, the sealing structure includes an outer end sealing structure that seals between the outer end of the core and the inner side of the water pipe joint, and the outer end sealing structure is an outer end sealing member that is sleeved or padded on the outer end of the core and is used to tightly fit with the internal thread of the water pipe joint or the water inlet of the water outlet valve.

[0011] The core comprises a core shell formed with an active channel, the inner end of the active channel is an inner channel port corresponding to the inner end of the core, and the outer end of the active channel is an outer channel port corresponding to the outer end of the core;

[0012] The self-closing structure includes a movable shaft rod, a guide structure, a sealing water retaining end and an anti-slip assembly. The movable shaft rod is coaxially arranged in the movable channel. The sealing water retaining end is the end of the movable shaft rod facing the port in the channel and is provided with a sealing structure that can seal and block the port in the channel. The movable shaft rod is a hollow structure outside the sealing water retaining end and a water inlet is provided on the side wall close to the sealing water retaining end. The end of the movable shaft rod facing the port outside the channel is provided with a water outlet. The guide structure is that the inner side of the core shell and the outer side of the movable shaft rod are provided with corresponding matching The nesting structure is nested and can only move axially but not rotate circumferentially. The assembly anti-slipping piece is sleeved and connected to the outside of the movable shaft rod end facing the outer port of the channel through a threaded structure. The inner side wall of the core shell is formed with a step ring that can block the assembly anti-slipping piece; the outer end surface of the sealing water retaining end is a water flow pushing surface that can be pushed by water flow to block the port in the channel and / or a closing elastic pushing piece is provided between the assembly anti-slipping piece and the step ring to push the sealing water retaining end to block the port in the channel; the opening rod connecting piece or the opening rod guide sleeve is connected and arranged on the assembly anti-slipping piece or the movable shaft rod;

[0013] Alternatively, the self-closing structure includes a movable shaft rod, a sealing water-retaining end and a guiding sealing structure, the movable shaft rod being coaxially inserted in the movable channel, the sealing water-retaining end being the end of the movable shaft rod facing the port in the channel and being provided with a sealing structure that can seal and block the port in the channel, the movable shaft rod is a hollow structure outside the sealing water-retaining end and a water flow inlet is provided on the side wall close to the sealing water-retaining end, the end of the movable shaft rod facing the port outside the channel is provided with a water flow outlet, the guiding sealing structure is a movable guiding section formed between the outer side wall of the movable shaft rod outside the water flow inlet and the inner wall of the core shell body and being provided with a movable sealing structure to realize a movable seal between the two, the outer end face of the sealing water-retaining end being a water flow pushing surface that can be pushed by water flow to block the port in the channel and / or a closing elastic pushing member is provided between the movable guiding section and the port in the channel to push the sealing water-retaining end to block the port in the channel ；

[0014] The core housing, the movable middle shaft rod, the assembly anti-dropping member, the opening rod connecting member or the opening rod guide sleeve are formed with a matching structure for matching with the installation tool during the assembly and installation operation.

[0015] A water pipe joint with a water-stopping self-sealing function, used for installing and connecting a water outlet valve, the water pipe joint includes the above-mentioned self-sealing one-way water-stop valve, and the opening structure faces the outside of the interface of the water pipe joint; the fixing structure of the self-sealing one-way water-stop valve is a structure in which the core shell of the core is combined and connected to the water pipe joint through an anti-loosening structure during production, the core is embedded in the water pipe joint, and the water pipe joint or the core is provided with a threaded structure for the installation and locking connection of the water outlet valve; or, the fixing structure of the self-sealing one-way water-stop valve is a structure in which the core shell of the core is combined and connected to the water pipe joint through an anti-loosening structure during production, and the inner end of the core is embedded in the water pipe joint. In the joint, the outer end of the core is exposed outside the water pipe joint and is provided with a threaded structure for the water valve to be installed and locked; or, the fixing structure of the self-sealing one-way water stop valve is that the core shell and the internal threaded part of the core are structural parts integrally formed when the water pipe joint is produced, and the core is embedded in the water pipe joint, and the water pipe joint or the core is provided with a threaded structure for the water valve to be installed and locked; or, the fixing structure of the self-sealing one-way water stop valve is that the core shell and the internal threaded part of the core are structural parts integrally formed when the water pipe joint is produced, the inner end of the core is embedded in the water pipe joint, and the outer end of the core is exposed outside the water pipe joint and is provided with a threaded structure for the water valve to be installed and locked.

[0016] The water pipe joint is provided with an outer cover which can cover the interface thereof.

[0017] By adopting the above technical scheme, the beneficial effect of the utility model is that the improved self-sealing one-way water-stop valve with the above structural arrangement is installed in the water pipe joint when in use, and can achieve sealing between the two through the sealing structure to prevent leakage between the two. Due to the arrangement of the self-closing structure and the opening structure on the above core, the valve can close the water flow channel on the core through the self-closing structure so that water cannot flow through, and can effectively stop water. In this way, there is no need to use a plug to wrap the raw tape to perform water blocking operations before the water outlet valve is installed, which saves operating hours and consumables of the plug raw tape. When the water outlet valve is installed, the explosion-proof opening rod on the self-sealing one-way water stop valve penetrates from the water inlet of the water outlet valve and presses on the internal structure of the water outlet valve. As the water outlet valve rotates forward, it will push the opening structure to open the water flow channel, and water can enter the water outlet valve. As the water outlet valve rotates forward, the sealing structure can also achieve a leak-proof seal. Therefore, water will not spray out during the installation of the water outlet valve. The water inlet end of the water outlet valve can be directly installed without winding with raw tape, and the water flow can be automatically opened. There is no need to switch the main gate of the water flow pipeline during the installation process. Similarly, there is no need to close the main gate of the water flow pipeline when disassembling and replacing the water outlet valve. The above products can be directly used for modification in existing life.

[0018] The above-mentioned water pipe joint with water-stopping self-sealing function also has the above-mentioned beneficial effects. At the same time, the water pipe joint automatically installs the above-mentioned valve when it is produced and leaves the factory, and no subsequent assembly is required. It has a stable structure and is easy to use. It effectively solves the problems existing in the above-mentioned background technology, provides a new product structure, and fills the gap in water heating functions with relevant needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The utility model is a structural schematic diagram of an improved self-sealing one-way water stop valve embodiment 1.

[0020] Figure 2 The utility model is a schematic diagram of the exploded structure of a first embodiment of an improved self-sealing one-way water stop valve.

[0021] Figure 3 The utility model is a cross-sectional structural diagram of an improved self-sealing one-way water stop valve according to a first embodiment of the present invention.

[0022] Figure 4 The utility model is a structural schematic diagram of a second embodiment of an improved self-sealing one-way water stop valve.

[0023] Figure 5 The utility model is a schematic diagram of the exploded structure of a second embodiment of an improved self-sealing one-way water stop valve.

[0024] Figure 6 The utility model is a cross-sectional structural diagram of a second improved self-sealing one-way water stop valve in use.

[0025] Figure 7 The utility model is another structural schematic diagram of an improved self-sealing one-way water stop valve.

[0026] Figure 8 The utility model is a schematic diagram of another structure of an improved self-sealing one-way water stop valve in use state.

[0027] In the figure:

[0028] Embodiment 1

[0029] Water pipe joint 100, water outlet valve 200, core 1, self-closing structure 11, movable shaft rod 111, water inlet 1111, water outlet 1112, guide structure 112, sealing water retaining end 113, assembly anti-dropping member 114, closing elastic push member 115 、

[0030] The opening structure 12, the explosion-proof opening rod 121, the explosion-proof top block 1211, the opening rod connecting piece 122, the core shell 13, the movable channel 131, the channel inner port 132, the channel outer port 133, the step ring 134, the fixed structure 2, and the sealing structure 3.

[0031] Embodiment 2

[0032] Water pipe joint 100, water outlet valve 200, core 1, self-closing structure 11,

[0033] The movable shaft 111, the water inlet 1111, the water outlet 1112,

[0034] Seal the water retaining end 113 and close the elastic pusher 115 、 Guide sealing structure 117, opening structure 12, explosion-proof pushing opening rod 121, explosion-proof top block 1211, elastic adaptive pushing member 1212, opening rod guide sleeve 123, core shell 13, movable channel 131, channel inner port 132, channel outer port 133, step ring 134, fixed structure 2, sealing structure 3. DETAILED DESCRIPTION

[0035] In order to further explain the technical solution of the present utility model, the present utility model is described in detail below through specific embodiments.

[0036] The improved self-sealing one-way water-stop valve disclosed in the utility model also has the functional effect of a self-sealing one-way water-stop valve proposed in Chinese patent application No. 202323292846.0 and application date December 1, 2023. When in use, it is installed and embedded in the interior of the water pipe joint 100. After the water outlet valve 200 is installed, it is connected to the water pipe joint 100. Its internal structure contacts and pushes with the improved self-sealing one-way water-stop valve of the utility model, thereby realizing the opening of water flow. After the water outlet valve 200 is removed from the water pipe joint 100, the water flow can be automatically closed. The difference is that the structural setting of the utility model further achieves better installation adaptability and can achieve the functional effect of automatically closing the water flow when the water outlet valve 200 breaks and loosens, the valve core explodes, etc. The specific structural setting is described in detail below in conjunction with the embodiments and drawings.

[0037] Embodiment 1

[0038] like Figure 1 , Figure 2 and Figure 3As shown, an improved self-sealing one-way water stop valve includes a core 1, a fixing structure 2 and a sealing structure 3. The fixing structure 2 is used to stably connect with the water pipe joint 100. According to the different production and use methods of the relevant products, the structural setting of the fixing structure 2 will also be different. The sealing structure 3 is used to seal against leakage during installation and use. According to the different structural settings and use methods of the products, the setting of the sealing structure can be adjusted accordingly. The core 1 includes a self-closing structure 11, which can automatically close the water flow when the water pipe joint 100 is not connected to the water outlet valve 200, and also includes an opening structure 12, which can automatically push and open the water flow when the water pipe joint 100 is connected to the water outlet valve 200. In this way, the core 1 is fixedly set on the water pipe joint 100 through the fixing structure 2, the inner end of the core 1 is embedded in the water pipe joint 100, and the outer end of the core 1 is connected to the water outlet valve 200. Then, the above-mentioned structural setting of the core 1 is combined with the sealing structure 3 to achieve the functional effects of water flow and self-sealing one-way water stop. The specific structural setting in this embodiment is as follows.

[0039] The core 1 includes a core shell 13 formed with a movable channel 131, the inner end of the movable channel 131 is an inner channel port 132 corresponding to the inner end of the core 1, the outer end of the movable channel 131 is an outer channel port 133 corresponding to the outer end of the core 1, and the self-closing structure 11 includes a movable shaft rod 111, a guide structure 112, a sealing water retaining end 113 and an assembly anti-slip component 114. The movable middle shaft rod 111 is coaxially arranged in the movable channel 131, and the sealing water-blocking end 113 is the end of the movable middle shaft rod 111 facing the port 132 in the channel and is provided with a sealing structure that can seal and block the port 132 in the channel. As shown in the figure, the end surface of the movable middle shaft rod 111 is a closed surface, and a sealing rubber ring is sleeved on the end of the movable middle shaft rod 111, which can cooperate with the movable middle shaft rod 111 to block the gap between the end of the middle shaft rod 111 and the port 132 in the channel, so that the port 132 in the channel can be completely sealed and blocked by the end surface of the movable middle shaft rod 111 and the sealing rubber ring. The movable inner shaft 111 is a hollow structure outside the sealing water retaining end 113 and a water inlet 1111 is provided on the side wall near the sealing water retaining end 113. When the inner port 132 of the channel is not blocked, water enters from the inner port 132 of the channel and enters the core 1 from the water inlet 1111. The end of the movable inner shaft 111 facing the outer port 133 of the channel is provided with a water outlet 1112. The water entering the core 1 from the water inlet 1111 flows into the water outlet valve 200 from the water outlet 1112. The guide structure 112 is used for the smooth axial movement of the movable shaft rod 111 in the core shell 13, and to prevent the movable shaft rod 111 from rotating circumferentially in addition to the axial movement in the core shell 13, which may affect the positioning and installation of other structures and the stable use of the water stop valve product structure. The guide structure 112 is a nesting structure that can be matched and nested accordingly and can only move axially but not rotate circumferentially, and the inner side of the core shell 13 and the outer side of the movable shaft rod 111 are provided with corresponding square shapes and sizes for matching nesting. The assembly anti-slip component 114 includes a component used to install the movable shaft rod 111 on the core shell 13 so that it is not easy to slip out, and to realize the sub-component arrangement of the product for easy production and assembly and installation. As shown in the figure, this embodiment is connected to the end of the movable shaft rod 111 facing the outer port 133 of the channel through a threaded structure, and the inner side wall of the core shell 13 is formed with a step ring 134 that can block the assembly anti-slip component 114, so that the inner end of the movable shaft rod 111 has the inner port 132 of the channel to block the sealing rubber ring, and the outer end has the step ring 134 to block the assembly anti-slip component 114, thereby being able to limit the axial movement of the movable shaft rod 111.Through the above structure, the sealing rubber ring can be separated from the port 132 in the channel by pushing the movable shaft rod 111 inward, so that the water flow is opened. When the movable shaft rod 111 loses the driving force, the water pressure in the water pipe joint 100 impacts the outer end surface of the sealing water retaining end 113, which can push the movable shaft rod 111 to move outward, thereby blocking the port 132 in the channel with the sealing rubber ring, so as to close the water. Therefore, the outer end surface of the sealing water retaining end 113 is set as a surface conducive to water flow pushing, so that the port 132 in the channel is blocked by the water flow. 2. In addition, if the outer end surface of the sealing water retaining end 113 does not have a good water flow pushing surface structure, it can also be combined with the structural setting as shown in the figure, and a closing elastic pushing member 115 is provided between the assembly anti-slipping member 114 and the step ring 134. As shown in the figure, a spring is sleeved on the movable shaft rod 111 between the relative end surfaces of the assembly anti-slipping member 114 and the step ring 134. Through the elastic tension of the spring, the sealing water retaining end 113 can be pushed faster and more stably to block the port 132 in the channel, thereby achieving a more reliable self-closing activity.

[0040] The opening structure 12 includes the self-closing structure 11, at one end of which is connected to the outer end of the core 1 and is provided with an explosion-proof opening rod 121 which can be penetrated from the water inlet of the water outlet valve 200 and pressed against the internal structure of the water outlet valve 200. The self-closing structure 11 can be pushed by pushing the explosion-proof opening rod 121. In the present embodiment, the self-closing structure 11 is specifically provided with an opening rod connecting piece 122, and the opening rod connecting piece 122 can be set on the assembly anti-slipping piece 114 or the movable shaft rod 111. As shown in the figure, it is locked in the assembly anti-slipping piece 114 through a threaded structure. The explosion-proof opening rod 121 is connected to the opening rod connecting piece 121 through a connecting structure that can be axially adjusted and positioned. As shown in the figure, the explosion-proof pushing opening rod 121 is a threaded rod, and the middle of the opening rod connecting piece 122 is provided with an internal thread matching it, so as to realize the connection between the explosion-proof pushing opening rod 121 and the self-closing structure 11 and the connection that can adjust the axial position. The connection that can adjust the axial position here is conducive to pushing the explosion-proof opening rod 121 to adjust the length of the water outlet valve 200 to withstand, so as to adapt to the use of the internal structure of the water outlet valve 200. The adjustment operation is simple and can be adapted to the installation of the water outlet valve 200. When the water outlet valve 200 is installed and extended, the explosion-proof opening rod 121 will be pushed. Since the explosion-proof opening rod 121 is connected to the self-closing structure 11, the explosion-proof opening rod 121 will also push the self-closing structure 11, so that the sealing rubber ring is separated from the port 132 in the channel, and the water flow is opened. When the thread of the installation connection of the water outlet valve 200 is broken or the valve core is exploded, these situations may cause the structural position of the explosion-proof opening rod 121 to change, so that the original pushing force of the explosion-proof opening rod 121 disappears. Therefore, the self-closing structure 11 will push the movable shaft rod 111 to block the port 132 in the channel under the action of the water flow pressure inside the water pipe joint 100 and the tension of the closing elastic pushing member 115, so as to achieve closing and water stopping. Therefore, it can better solve and prevent the serious loss problem caused by the breakage of the water outlet valve 200 and the explosion of the valve core. It should be noted that in the above structural setting, the setting of the opening rod connecting piece 122 should not block the water flow. As shown in the figure, there is a hollow structure between the outer ring and the external thread locked with the anti-slip part 114 and the inner ring and the internal thread locked with the explosion-proof opening rod 121, and the structural setting allows water to flow directly through.In addition, due to the different internal structures of different water outlet valves 200, some structural settings can make the end of the explosion-proof opening rod 121 directly hit the valve core, while some cannot hit the valve core. According to structural requirements, the explosion-proof opening rod 121 is pressed against the end of the internal structure of the water outlet valve 200 and is provided with a fixed, detachable or detachable and axially adjustable explosion-proof top block 1211. For example, a fixed explosion-proof top block 1211 can be used for a specific water outlet valve 200 structure. If it is not a specific application but is to adapt to the installation and use of most water outlet valves 200 products on the market, a detachable or detachable and axially adjustable explosion-proof top block 1211 can be used. The detachable explosion-proof top block 1211 can be replaced with explosion-proof top blocks 1211 of different sizes and shapes as needed. The detachable and axially adjustable explosion-proof top block 1211 can be replaced with explosion-proof top blocks 1211 of different sizes and shapes and the adjustment required for different pushing depths. It should also be noted here that the explosion-proof top block 1211 should be a structural component that does not block the flow of water.

[0041] The fixing structure 2 is arranged on the outside of the core 1 for fixing the core to the water pipe connector 100. As shown in the figure, the outside of the core 1 is provided with an external thread, which can be screwed with the internal thread on the inside of the water pipe connector 100, thereby locking the connection through the threaded structure.

[0042] In the present invention, the sealing structure 3 may include an inner end sealing structure 31 and an outer end sealing structure 32. The inner end sealing structure 31 is used to seal between the inner end of the core 1 and the inner side of the water pipe joint 100, and the outer end sealing structure 32 is used to seal between the outer end of the core and the inner side of the water pipe joint, such as realizing a leakage-proof seal between the core 1 and the inner side of the water pipe joint 100 and / or between the core 1 and the water inlet of the water outlet valve 200 and / or between the core 1 and the inner side of the water pipe joint 100 and the water inlet of the water outlet valve 200. In this embodiment, the inner end sealing structure 31 is a sleeve (or pad) provided on the inner side of the outer threaded convex ring of the fixing structure 2 for sealing with the water pipe joint 100. The inner end seal (sealing ring) is tightly fitted with the inner step ring (circumferential side wall or internal thread); the outer end sealing structure 32 is the outer end seal (sealing ring) of the core outer end, which is sleeved (or cushioned) on the outside of the external threaded convex ring of the fixing structure 2 and is used to tightly fit with the internal thread of the water pipe joint 100 or the water inlet of the water outlet valve 200. The inner sealing ring is used for sealing and leak-proofing between the core 1 and the inner side of the water pipe joint 100, and the outer sealing ring is used for sealing and leak-proofing between the core 1 and the water inlet of the water outlet valve 200. The sealing structure has a stable and reliable sealing effect. In different structures, the inner end sealing structure 31 and the outer end sealing structure 32 can also be set separately or adjusted in position.

[0043] In the above structure, in order to facilitate the assembly and installation operations of the components, the core housing 13, the movable central shaft rod 111, the assembly anti-dropping member 114 or the opening rod connecting member 122 may be formed with a matching structure for cooperating with the installation tool during the assembly and installation operations.

[0044] Embodiment 2

[0045] like Figure 4 , Figure 5 and Figure 6 As shown, an improved self-sealing one-way water stop valve includes a core 1, a fixing structure 2 and a sealing structure 3. The fixing structure 2 is used to stably connect with the water pipe joint 100. According to the different production and use methods of the relevant products, the structural setting of the fixing structure 2 will also be different. The sealing structure 3 is used to seal against leakage during installation and use. According to the different structural settings and use methods of the products, the setting of the sealing structure can be adjusted accordingly. The core 1 includes a self-closing structure 11, which can automatically close the water flow when the water pipe joint 100 is not connected to the water outlet valve 200, and also includes an opening structure 12, which can automatically push and open the water flow when the water pipe joint 100 is connected to the water outlet valve 200. In this way, the core 1 is fixedly set on the water pipe joint 100 through the fixing structure 2, the inner end of the core 1 is embedded in the water pipe joint 100, and the outer end of the core 1 is connected to the water outlet valve 200. Then, the above-mentioned structural setting of the core 1 is combined with the sealing structure 3 to achieve the functional effects of water flow and self-sealing one-way water stop. The specific structural setting in this embodiment is as follows.

[0046] The core 1 includes a core shell 13 formed with an active channel 131, the inner end of the active channel 131 is a channel inner port 132 corresponding to the inner end of the core 1, and the outer end of the active channel 131 is a channel outer port 133 corresponding to the outer end of the core 1. The self-closing structure 11 includes an active middle shaft 111, a sealing water retaining end 113 and a guide sealing structure 117. The active middle shaft 111 is coaxially arranged in the active channel 131, and the sealing water retaining end 113 is an end of the active shaft 111 facing the channel inner port 132, and a sealing structure that can seal and block the channel inner port 132 is provided. As shown in the figure, the end surface of the active shaft 111 is a closed surface, and a sealing rubber ring is sleeved on the end of the active shaft 111, which can cooperate with the active shaft 111 to block the gap between the end of the middle shaft 111 and the channel inner port 132, so that the channel inner port 132 can be completely sealed and blocked by the end surface of the active shaft 111 and the sealing rubber ring. The movable inner shaft 111 is a hollow structure outside the sealing water retaining end 113 and a water inlet 1111 is provided on the side wall near the sealing water retaining end 113. When the inner port 132 of the channel is not blocked, water enters from the inner port 132 of the channel and enters the core 1 from the water inlet 1111. The end of the movable inner shaft 111 facing the outer port 133 of the channel is provided with a water outlet 1112. The water entering the core 1 from the water inlet 1111 flows into the water outlet valve 200 from the water outlet 1112. The guide sealing structure 117 is used for the smooth axial movement of the movable shaft rod 111 in the core shell 13. In the figure, a movable guide section is formed between the outer wall of the movable shaft rod 111 outside the water inlet 1111 and the inner wall of the core shell 13, and a movable sealing structure (sealing ring) is provided to realize the movable seal between the two; in addition, a closing elastic pusher 115 is provided between the movable guide section and the port 132 in the channel to push the sealing water retaining end 113 to block the port 132 in the channel. As shown in the figure, a step ring 134 is formed in the port 132 in the channel, and a closing elastic pusher 115 (spring) is sleeved on the movable shaft rod 11 between the opposite end faces of the movable guide section and the step ring 134. As in the above structure, pushing the movable shaft rod 11 inward can make the sealing rubber ring detach from the port 132 in the channel, thereby opening the water flow. When the movable shaft rod 111 loses its driving force, the water pressure in the water pipe joint 100 impacts the outer end surface of the sealing water-blocking end 113 and the elastic tension of the closing elastic pushing member 115 (spring) can push the movable shaft rod 111 to move outward, so that the sealing rubber ring of the sealing water-blocking end 113 can block the port 132 in the channel, thereby closing and stopping water. In order to achieve a faster, more stable and more reliable self-closing activity, the outer end surface of the sealing water-blocking end 113 can be set as a water flow pushing surface.

[0047] The opening structure 12 includes the self-closing structure 11, which is connected to an end facing the outer end of the core 1 and is provided with an explosion-proof opening rod 121 that can be inserted from the water inlet of the water outlet valve 200 and pressed against the internal structure of the water outlet valve 200. The self-closing structure 11 can be pushed by pushing the explosion-proof opening rod 121. In this embodiment, the self-closing structure 11 is specifically provided with an opening rod guide sleeve 123, and the opening rod guide sleeve 123 is arranged on the movable shaft rod 111. As shown in the figure, it is locked in the movable shaft rod 111 through a threaded structure. The explosion-proof opening rod 121 can be axially movable and passed through a guide hole provided in the middle of the opening rod guide sleeve 123 to achieve a smooth setting of the explosion-proof opening rod 12. The inner end of the explosion-proof opening rod 121 in the figure is provided with a guide sliding limiting structure to prevent it from easily falling out of the guide hole, and an elastic self-adaptive sleeve is provided on the inner end of the opening rod guide sleeve 123. The pusher 1212 is a spring as shown in the figure. One end of the elastic adaptive pusher 1212 is pressed against the explosion-proof opening rod 121 (as shown in the figure, it is pressed against the end face of the limiting structure at the inner end of the explosion-proof opening rod 121), and the other end is pressed against the self-closing structure 11 (as shown in the figure, it is pressed against the inner end face of the hollow structure of the movable shaft rod 111). In this way, the explosion-proof opening rod 121 can realize adaptive adjustment of the axial position and push the self-closing structure through the elastic adaptive pusher 1212. The connection with adjustable axial position is conducive to pushing the explosion-proof opening rod 121 to adjust the extension in and out The length of the support inside the water valve 200 can be adapted to the use of the support inside the different water outlet valve 200 structures, and the adjustment operation is simple. When the water outlet valve 200 is installed, the explosion-proof opening rod 121 will be pushed as the water outlet valve 200 is installed. Since the explosion-proof opening rod 121 is pushed against the self-closing structure 11 through the elastic adaptive pushing member 1212, the self-closing structure 11 can be pushed as long as the elastic driving force of the elastic adaptive pushing member 1212 is greater than the elastic driving force of the closing elastic pushing member 115, so that the sealing rubber ring is separated from the port 132 in the channel, and the water flow is opened. , and when the thread of the installation connection of the water outlet valve 200 is broken or the valve core explodes, since these situations may cause the structural position of the explosion-proof opening rod 121 to change, the original pushing force of the explosion-proof opening rod 121 disappears, so the self-closing structure 11 will push the movable shaft rod 111 to block the port 132 in the channel under the water flow pressure inside the water pipe joint 100 and the tension of the closing elastic pusher 115, so as to close and stop the water, thus better solving and preventing the serious loss caused by the breakage of the water outlet valve 200 and the explosion of the valve core. In the above structural setting, it should be noted that the setting of the opening rod guide sleeve 123 should not block the water flow. As shown in the figure, the outer thread locked with the movable shaft rod 111 and the guide hole of the inner circle are hollow structures, and the water flow can directly pass through the structural setting.In addition, due to the different internal structures of different water outlet valves 200, some structural settings can make the end of the explosion-proof opening rod 121 directly hit the valve core, while some cannot hit the valve core. According to structural requirements, the explosion-proof opening rod 121 is pressed against the end of the internal structure of the water outlet valve 200 and is provided with a fixed, detachable or detachable and axially adjustable explosion-proof top block 1211. For example, a fixed explosion-proof top block 1211 can be used for a specific water outlet valve 200 structure. If it is not a specific application but is to adapt to the installation and use of most water outlet valves 200 products on the market, a detachable or detachable and axially adjustable explosion-proof top block 1211 can be used. The detachable explosion-proof top block 1211 can be replaced with explosion-proof top blocks 1211 of different sizes and shapes as needed. The detachable and axially adjustable explosion-proof top block 1211 can be replaced with explosion-proof top blocks 1211 of different sizes and shapes and the adjustment required for different pushing depths. It should also be noted here that the explosion-proof top block 1211 should be a structural component that does not block the flow of water.

[0048] The fixed structure 2 described in this embodiment is a positioning and matching structure that is provided on the outer side wall of the core shell 13 of the core 1 and the inner side wall of the water pipe connector 100 to prevent circumferential rotation and axial movement. This structure is mainly used for the water pipe connector 100 that is a plastic injection molded product, that is, during the production process of the plastic water pipe connector 100, the water stop valve of the finished product structure is directly injection molded and combined with the plastic water pipe connector 100, and the combined structure is very stable. Of course, this is the structural setting shown in the second embodiment, not applied to the directly combined water pipe connector 100, and the structural setting of the fixed structure 2 and the corresponding sealing structure 3 as described in the first embodiment can also be adopted. In this embodiment, since the outer side of the water stop valve has been integrated with the water pipe joint 100 by injection molding, there is no need to set the sealing structure 3 between the core shell 13 and the inner side of the water pipe joint 100. Only the sealing structure between the core shell 13 and the water inlet of the water outlet valve 200 is required. As shown in the figure, a sealing ring is sleeved between the inner side of the core shell 13 and the outer end of the movable shaft rod 111. The sealing ring is used to achieve a leak-proof seal between the inner side of the core shell 13 and the water inlet of the water outlet valve 200, and the sealing effect is stable and reliable. The setting of the sealing structure 3 can be adjusted accordingly according to the structural adjustment setting of the water stop valve product with different structures.

[0049] In the above structure, in order to facilitate the assembly and installation of components, the core housing 13, the movable central shaft rod 111 or the opening rod guide sleeve 123 may be formed with a matching structure for cooperating with the installation tool during the assembly and installation operation.

[0050] The structural settings of the above-mentioned embodiment 1 and embodiment 2 can also be adjusted according to needs, such as adjusting the fixing structure 2, the sealing structure 3, and the structure on the core 1. In addition, the two water stop valves of the utility model described in embodiment 1 and embodiment 2 are structural settings in which most of the main body is embedded in the water pipe joint 100 after installation, and only the explosion-proof opening rod 121 is exposed. Figure 7 and Figure 8 As shown, the inner end of the core 1 is embedded in the water pipe joint 100, and the outer end of the core 1 is exposed outside the water pipe joint 100 for installation and connection of the water outlet valve 200. The improved self-sealing one-way water stop valve of the utility model can be adjusted and changed in many ways without departing from the technical solution to be protected by the utility model, which will not be listed one by one here.

[0051] Another specific embodiment of the utility model

[0052] A water pipe joint with a water-stopping self-sealing function, such as Figure 3 , Figure 6 and Figure 8 As shown, the water pipe joint 100 is used to install and connect the water outlet valve 200. The water pipe joint 100 includes the above-mentioned self-sealing one-way water stop valve. The opening operation of the opening structure 12 is toward the outside of the interface of the water pipe joint 100. In addition to applying the above-mentioned self-sealing one-way water stop valve structures such as the following, the structural settings of different water pipe joint product materials may have different technical structural settings. The main differences are as follows.

[0053] The first one is that the fixing structure 2 of the self-sealing one-way water stop valve is a structure in which the core shell 13 of the core 1 is connected to the water pipe connector 100 through an anti-loosening structure during production. The core 1 is embedded in the water pipe connector 100. The water pipe connector 100 or the core 1 is provided with a threaded structure for the installation and locking connection of the water valve 200. The structural setting can be that the water pipe connector 100 as described above is an injection molded product, and the self-sealing one-way water stop valve except the explosion-proof push rod 121 is completely embedded in the water pipe connector.

[0054] The second type is that the fixing structure 2 of the self-sealing one-way water stop valve is a structure in which the core shell 13 of the core 1 is connected to the water pipe connector 100 through an anti-loosening structure during production. The inner end of the core 1 is embedded in the water pipe connector 100, and the outer end of the core 1 is exposed outside the water pipe connector 100 and is provided with a threaded structure for the installation and locking connection of the water valve 200. This structural setting can be that the water pipe connector 100 as described above is an injection molded product, the inner end of the self-sealing one-way water stop valve is embedded in the water pipe connector 100, and the outer end is exposed outside and is provided with a threaded structure.

[0055] The third type, the fixing structure 2 of the self-sealing one-way water stop valve is a structural part that is integrally formed when the core shell 13 of the core 1 and the water pipe connector 100 are produced, and the core 1 is embedded in the water pipe connector 100. The water pipe connector 100 or the core 1 is provided with a threaded structure for the installation and locking connection of the water valve. The structure is arranged that the water pipe connector 100 and the core shell 13 are an integral injection molding product or a metal integral casting product. Except for the explosion-proof push rod 121, the other parts of the self-sealing one-way water stop valve are completely embedded in the water pipe connector 100.

[0056] The third type, the fixing structure 2 of the self-sealing one-way water stop valve is a structural part that is integrally formed when the core shell 13 of the core 1 and the water pipe connector 100 are produced, the inner end of the core 1 is embedded in the water pipe connector 100, the outer end of the core 1 is exposed outside the water pipe connector 100 and is provided with a threaded structure for the installation and locking connection of the water outlet valve 200, and the structure is arranged that the water pipe connector 100 and the core shell 13 are an integral injection molding product or a metal integral casting molding product, the inner end of the self-sealing one-way water stop valve is embedded in the water pipe connector 100, and the outer end is exposed outside and is provided with a threaded structure.

[0057] The structural settings of the above-mentioned water pipe joints 100 can be combined or integrally formed according to different materials, and can be selected and adopted according to specific needs. The structural settings are conducive to production and manufacturing. In addition, an improved self-sealing one-way water stop valve and a water pipe joint with a water stop self-sealing function of the utility model can be configured with an outer cover that can cover the interface installed outward, which plays a protective role.

[0058] The above embodiments and drawings do not limit the product form and style of the present utility model. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present utility model.

Claims

1. An improved self-sealing one-way water stop valve, characterized in that: When in use, it is embedded and installed on a water pipe joint for connecting a water outlet valve to water. The structure includes a core, a fixing structure and a sealing structure. The core includes a self-closing structure that can automatically close the water flow when the water pipe joint is not connected to the water outlet valve, and also includes an opening structure that can automatically push to open the water flow when the water pipe joint is connected to the water outlet valve. The fixing structure is arranged on the outside of the core to fix the core on the water pipe joint. The sealing structure is used for leak-proof sealing between the core and the inner side of the water pipe joint and / or between the core and the water inlet of the water outlet valve and / or between the core and the inner side of the water pipe joint and the water inlet of the water outlet valve. The opening structure includes an explosion-proof opening rod connected to one end of the self-closing structure facing the outer end of the core, which can be penetrated from the water inlet of the water outlet valve and pressed against the internal structure of the water outlet valve. The self-closing structure can be pushed by pushing the explosion-proof opening rod.

2. An improved self-sealing one-way water stop valve as claimed in claim 1, characterized in that: The self-closing structure is provided with an opening rod connecting piece, and the explosion-proof opening rod is connected to the opening rod connecting piece by a connecting structure that can be axially adjusted and positioned; or, the self-closing structure is provided with an opening rod guide sleeve, and the explosion-proof opening rod can be axially movably inserted into the opening rod guide sleeve and an elastic adaptive pushing piece is sleeved on the inner end of the opening rod guide sleeve, one end of the elastic adaptive pushing piece is pressed against the explosion-proof opening rod, and the other end is pressed against the self-closing structure, and the explosion-proof opening rod adaptively adjusts the axial position and pushes the self-closing structure through the elastic adaptive pushing piece.

3. An improved self-sealing one-way water stop valve as claimed in claim 2, characterized in that: The explosion-proof opening rod top is provided with an explosion-proof top block which is fixed, detachable or detachable and can be axially adjusted and positioned on the end of the internal structure of the water outlet valve.

4. An improved self-sealing one-way water stop valve as claimed in claim 2 or 3, characterized in that: The fixing structure is that the outer side of the core and the inner side of the water pipe joint are locked and connected by a threaded structure, or the fixing structure is that the outer side wall of the core and the inner side wall of the water pipe joint are provided with a positioning matching structure that is combined with each other to prevent circumferential rotation and axial movement; And / or, the core is embedded in the water pipe joint during installation, or the inner end of the core is embedded in the water pipe joint, and the outer end of the core is exposed outside the water pipe joint for installation and connection of the water outlet valve.

5. An improved self-sealing one-way water stop valve as claimed in claim 2 or 3, characterized in that: The sealing structure includes an inner end sealing structure that seals between the inner end of the core and the inner side of the water pipe joint, and the inner end sealing structure is an inner end sealing member that is sleeved or padded on the inner end of the core and is used to tightly fit with the circumferential side wall, step ring or internal thread in the water pipe joint; and / or, the sealing structure includes an outer end sealing structure that seals between the outer end of the core and the inner side of the water pipe joint, and the outer end sealing structure is an outer end sealing member that is sleeved or padded on the outer end of the core and is used to tightly fit with the internal thread of the water pipe joint or the water inlet of the water outlet valve.

6. An improved self-sealing one-way water stop valve as claimed in claim 4, characterized in that: The sealing structure includes an inner end sealing structure that seals between the inner end of the core and the inner side of the water pipe joint, and the inner end sealing structure is an inner end sealing member that is sleeved or padded on the inner end of the core and is used to tightly fit with the circumferential side wall, step ring or internal thread in the water pipe joint; and / or, the sealing structure includes an outer end sealing structure that seals between the outer end of the core and the inner side of the water pipe joint, and the outer end sealing structure is an outer end sealing member that is sleeved or padded on the outer end of the core and is used to tightly fit with the internal thread of the water pipe joint or the water inlet of the water outlet valve.

7. An improved self-sealing one-way water stop valve as claimed in claim 2 or 3, characterized in that: The core comprises a core shell formed with an active channel, the inner end of the active channel is an inner channel port corresponding to the inner end of the core, and the outer end of the active channel is an outer channel port corresponding to the outer end of the core; The self-closing structure includes a movable shaft rod, a guide structure, a sealing water retaining end and an anti-slip assembly. The movable shaft rod is coaxially arranged in the movable channel. The sealing water retaining end is the end of the movable shaft rod facing the port in the channel and is provided with a sealing structure that can seal and block the port in the channel. The movable shaft rod is a hollow structure outside the sealing water retaining end and a water inlet is provided on the side wall close to the sealing water retaining end. The end of the movable shaft rod facing the port outside the channel is provided with a water outlet. The guide structure is that the inner side of the core shell and the outer side of the movable shaft rod are provided with corresponding matching The nesting structure is nested and can only move axially but not rotate circumferentially. The assembly anti-slipping piece is sleeved and connected to the outside of the movable shaft rod end facing the outer port of the channel through a threaded structure. The inner side wall of the core shell is formed with a step ring that can block the assembly anti-slipping piece; the outer end surface of the sealing water retaining end is a water flow pushing surface that can be pushed by water flow to block the port in the channel and / or a closing elastic pushing piece is provided between the assembly anti-slipping piece and the step ring to push the sealing water retaining end to block the port in the channel; the opening rod connecting piece or the opening rod guide sleeve is connected and arranged on the assembly anti-slipping piece or the movable shaft rod; Alternatively, the self-closing structure includes a movable shaft rod, a sealing water-retaining end and a guiding sealing structure, the movable shaft rod is coaxially arranged in the movable channel, the sealing water-retaining end is the end of the movable shaft rod facing the port in the channel and is provided with a sealing structure that can seal and block the port in the channel, the movable shaft rod is a hollow structure outside the sealing water-retaining end and a water inlet is provided on the side wall close to the sealing water-retaining end, the end of the movable shaft rod facing the port outside the channel is provided with a water outlet, the guiding sealing structure is a movable guiding section formed between the outer side wall of the movable shaft rod outside the water inlet and the inner wall of the core shell body and is provided with a movable sealing structure to achieve movable sealing between the two, the outer end face of the sealing water-retaining end is a water push surface that can be pushed by water to block the port in the channel and / or a closing elastic pushing member is provided between the movable guiding section and the port in the channel to push the sealing water-retaining end to block the port in the channel.

8. An improved self-sealing one-way water stop valve as claimed in claim 4, characterized in that: The core comprises a core shell formed with an active channel, the inner end of the active channel is an inner channel port corresponding to the inner end of the core, and the outer end of the active channel is an outer channel port corresponding to the outer end of the core; The self-closing structure includes a movable shaft rod, a guide structure, a sealing water retaining end and an anti-slip assembly. The movable shaft rod is coaxially arranged in the movable channel. The sealing water retaining end is the end of the movable shaft rod facing the port in the channel and is provided with a sealing structure that can seal and block the port in the channel. The movable shaft rod is a hollow structure outside the sealing water retaining end and a water inlet is provided on the side wall close to the sealing water retaining end. The end of the movable shaft rod facing the port outside the channel is provided with a water outlet. The guide structure is that the inner side of the core shell and the outer side of the movable shaft rod are provided with corresponding matching The nesting structure is nested and can only move axially but not rotate circumferentially. The assembly anti-slipping piece is sleeved and connected to the outside of the movable shaft rod end facing the outer port of the channel through a threaded structure. The inner side wall of the core shell is formed with a step ring that can block the assembly anti-slipping piece; the outer end surface of the sealing water retaining end is a water flow pushing surface that can be pushed by water flow to block the port in the channel and / or a closing elastic pushing piece is provided between the assembly anti-slipping piece and the step ring to push the sealing water retaining end to block the port in the channel; the opening rod connecting piece or the opening rod guide sleeve is connected and arranged on the assembly anti-slipping piece or the movable shaft rod; Alternatively, the self-closing structure includes a movable shaft rod, a sealing water-retaining end and a guiding sealing structure, the movable shaft rod is coaxially arranged in the movable channel, the sealing water-retaining end is the end of the movable shaft rod facing the port in the channel and is provided with a sealing structure that can seal and block the port in the channel, the movable shaft rod is a hollow structure outside the sealing water-retaining end and a water inlet is provided on the side wall close to the sealing water-retaining end, the end of the movable shaft rod facing the port outside the channel is provided with a water outlet, the guiding sealing structure is a movable guiding section formed between the outer side wall of the movable shaft rod outside the water inlet and the inner wall of the core shell body and is provided with a movable sealing structure to achieve movable sealing between the two, the outer end face of the sealing water-retaining end is a water push surface that can be pushed by water to block the port in the channel and / or a closing elastic pushing member is provided between the movable guiding section and the port in the channel to push the sealing water-retaining end to block the port in the channel.

9. An improved self-sealing one-way water stop valve as claimed in claim 5, characterized in that: The core comprises a core shell formed with an active channel, the inner end of the active channel is an inner channel port corresponding to the inner end of the core, and the outer end of the active channel is an outer channel port corresponding to the outer end of the core; The self-closing structure includes a movable shaft rod, a guide structure, a sealing water retaining end and an anti-slip assembly. The movable shaft rod is coaxially arranged in the movable channel. The sealing water retaining end is the end of the movable shaft rod facing the port in the channel and is provided with a sealing structure that can seal and block the port in the channel. The movable shaft rod is a hollow structure outside the sealing water retaining end and a water inlet is provided on the side wall close to the sealing water retaining end. The end of the movable shaft rod facing the port outside the channel is provided with a water outlet. The guide structure is that the inner side of the core shell and the outer side of the movable shaft rod are provided with corresponding matching The nesting structure is nested and can only move axially but not rotate circumferentially. The assembly anti-slipping piece is sleeved and connected to the outside of the movable shaft rod end facing the outer port of the channel through a threaded structure. The inner side wall of the core shell is formed with a step ring that can block the assembly anti-slipping piece; the outer end surface of the sealing water retaining end is a water flow pushing surface that can be pushed by water flow to block the port in the channel and / or a closing elastic pushing piece is provided between the assembly anti-slipping piece and the step ring to push the sealing water retaining end to block the port in the channel; the opening rod connecting piece or the opening rod guide sleeve is connected and arranged on the assembly anti-slipping piece or the movable shaft rod; Alternatively, the self-closing structure includes a movable shaft rod, a sealing water-retaining end and a guiding sealing structure, the movable shaft rod is coaxially arranged in the movable channel, the sealing water-retaining end is the end of the movable shaft rod facing the port in the channel and is provided with a sealing structure that can seal and block the port in the channel, the movable shaft rod is a hollow structure outside the sealing water-retaining end and a water inlet is provided on the side wall close to the sealing water-retaining end, the end of the movable shaft rod facing the port outside the channel is provided with a water outlet, the guiding sealing structure is a movable guiding section formed between the outer side wall of the movable shaft rod outside the water inlet and the inner wall of the core shell body and is provided with a movable sealing structure to achieve movable sealing between the two, the outer end face of the sealing water-retaining end is a water push surface that can be pushed by water to block the port in the channel and / or a closing elastic pushing member is provided between the movable guiding section and the port in the channel to push the sealing water-retaining end to block the port in the channel.

10. A water pipe joint with a water-stopping self-sealing function, used for installing and connecting a water outlet valve, wherein the water pipe joint is integrated with an internal threaded member for matching the threaded connection of the water inlet end of the water outlet valve, characterized in that: The internal threaded part includes a self-sealing one-way water stop valve according to claim 1, 2, 3, 5, 7 or 9, and the opening structure faces the outside of the interface of the water pipe joint. The fixing structure of the self-sealing one-way water stop valve is a structure in which the core shell of the core is connected to the water pipe joint through an anti-loosening structure during production, the core is embedded in the water pipe joint, and a threaded structure is provided on the water pipe joint or the core for installation and locking connection of the water valve; Alternatively, the fixing structure of the self-sealing one-way water stop valve is a structure in which the core shell of the core is connected to the water pipe joint through an anti-loosening structure during production, the inner end of the core is embedded in the water pipe joint, and the outer end of the core is exposed outside the water pipe joint and is provided with a threaded structure for installation and locking connection of the water valve; Alternatively, the fixing structure of the self-sealing one-way water stop valve is that the core shell and the internal threaded part of the core are structural parts integrally formed when the water pipe joint is produced, the core is embedded in the water pipe joint, and the water pipe joint or the core is provided with a threaded structure for the water valve to be installed and locked; Alternatively, the fixing structure of the self-sealing one-way water stop valve is that the core shell and the internal threaded part of the core are structural parts integrally formed during the production of the water pipe joint, the inner end of the core is embedded in the water pipe joint, the outer end of the core is exposed outside the water pipe joint and is provided with a threaded structure for installation and locking connection of the water outlet valve.

Images