A multifunctional plastic union fitting and water supply and drainage piping system

Abstract

This utility model provides a multifunctional plastic union fitting and a water supply and drainage pipeline system, relating to the technical field of water supply and drainage pipeline systems. The multifunctional plastic union fitting includes a union body and a clamping nut. The union body has a flange boss dividing it into a locking section and a union section. The locking section has an external thread that engages with the internal thread of the clamping nut for locking. One of the locking section and the union section has a heat-fusion socket, and the other has a heat-fusion socket or a metal internal thread socket. The heat-fusion socket and / or the metal internal thread socket includes a first-specification socket and a second-specification socket. This utility model utilizes the two different sized sockets at both ends of the union body to achieve connection with heat-fusion socket-type plastic joints and threaded mechanical installation components. Users can cut the fitting as needed, making operation convenient, reducing installation costs, and meeting the needs of most market applications.

Description

Technical Field

[0001] This utility model relates to the field of water supply and drainage pipeline system technology, and more specifically, to a multifunctional plastic fitting and a water supply and drainage pipeline system. Background Technology

[0002] Currently, most tank-type products on the market use metal fittings at the inlet and outlet. When connecting to plastic pipes, additional fittings with plastic components are required. Moreover, each product corresponds to only one pipe size. If a different pipe size needs to be changed, the entire cost of the new fitting must be paid for, increasing the risk of buying the wrong or missing fitting. Metal adapters are expensive, thus increasing the overall installation and time costs for consumers.

[0003] In view of this, this utility model is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a multifunctional plastic fitting and a water supply and drainage pipeline system.

[0005] The embodiments of this utility model can be implemented as follows:

[0006] In a first aspect, this utility model provides a multifunctional plastic union fitting, which includes a union body and a clamping nut. The union body is provided with a flange boss, which divides the union body into a locking section and a union section. The locking section is provided with an external thread that engages with the internal thread of the clamping nut for locking. One of the locking section and the union section is provided with a thermofusion socket, and the other is provided with a thermofusion socket or a metal internal thread socket. The thermofusion socket and / or the metal internal thread socket includes a first-size socket and a second-size socket. The size of the first-size socket is smaller than the size of the second-size socket. The first-size socket is located near the middle of the union body, and the second-size socket is located near the end of the union body.

[0007] In an optional embodiment, the locking section and / or the live joint section have an indicator groove on the outer surface corresponding to the connection between the first-specification socket and the second-specification socket for easy cutting.

[0008] In an optional embodiment, the width of the indicator groove is 0.4-0.6 mm and the depth is 0.4-0.6 mm.

[0009] In an optional embodiment, the union body is further provided with a clamping boss, which is connected to the flange boss and is smaller in size than the flange boss.

[0010] In an optional embodiment, the clamping boss is a regular octagon or a regular hexagon.

[0011] In an optional embodiment, the multifunctional plastic union fitting further includes a first gasket and a second gasket, with an installation cavity formed between the first gasket and the second gasket for sealing the inlet and outlet walls of the tank. The other side of the first gasket contacts the flange boss, and the other side of the second gasket contacts the compression nut.

[0012] In an optional embodiment, the clamping nut includes a nut cap and a nut boss that are connected to each other, the internal thread is provided in the nut cap, the nut boss protrudes along the axial direction of the nut cap, and the flange boss has the same wall thickness and size.

[0013] In an optional embodiment, the outer surface of the nut cap is provided with a plurality of anti-slip ribs.

[0014] In an optional embodiment, both the union body and the clamping nut are made of plastic.

[0015] Secondly, this utility model provides a water supply and drainage pipeline system, including a tank and a multifunctional plastic fitting as described in any of the foregoing embodiments. The tank is provided with an inlet and an outlet, and the edge sidewall of the tank corresponding to the inlet and outlet is embedded between the clamping nut and the flange boss.

[0016] The beneficial effects of the multifunctional plastic fitting and water supply and drainage pipeline system provided in this embodiment of the utility model include:

[0017] This utility model provides a multifunctional plastic union fitting that is installed onto the tank body using the external thread of the union body and the internal thread of the clamping nut. The installation method is simple and easy to operate. Furthermore, this multifunctional plastic union fitting utilizes the heat-fusion sockets or metal internal threaded sockets at both ends of the union body to achieve connection with heat-fusion socket-type plastic joints and threaded mechanical installation components. The connection is faster, more efficient, safer, and more reliable. In addition, the heat-fusion sockets have two different specifications, allowing users to cut them according to their needs, facilitating operation, reducing installation costs, and meeting the needs of most market applications. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 An exploded view of the multifunctional plastic union fitting provided in this embodiment;

[0020] Figure 2 This is a cross-sectional view of the multifunctional plastic union fitting provided in this embodiment, where both ends are equipped with heat-fused sockets.

[0021] Figure 3 A cross-sectional view of the multifunctional plastic union fitting provided in this embodiment, wherein one end is provided with a heat-fused socket and the other end is provided with a metal internal thread socket.

[0022] Figure 4 This is a three-dimensional structural diagram of the union body of the multifunctional plastic union fitting provided in this embodiment;

[0023] Figure 5 This is a side view of the union body of the multifunctional plastic union fitting provided in this embodiment;

[0024] Figure 6 for Figure 5 A magnified view of a section at point A in the middle;

[0025] Figure 7 A cross-sectional view of the multifunctional plastic union fitting provided in this embodiment, where both ends of the union body are provided with heat-fused sockets.

[0026] Figure 8 A cross-sectional view of the multifunctional plastic union fitting provided in this embodiment, wherein one end of the union body is provided with a heat-fusion socket and the other end is provided with a metal internal thread socket.

[0027] Figure 9 This is a schematic diagram of the clamping nut of the multifunctional plastic connector provided in this embodiment;

[0028] Figure 10 This is a schematic diagram of the water supply and drainage pipeline system provided in this embodiment;

[0029] Figure 11 for Figure 10 A magnified view of a section at point B in the middle.

[0030] Icons: 100 - Multi-functional plastic union fitting; 110 - Union body; 1101 - Locking section; 1102 - Union section; 111 - Flange boss; 112 - External thread; 113 - Hot melt socket; 114 - Metal internal thread socket; 115 - First specification socket; 116 - Second specification socket; 117 - Indicator groove; 118 - Clamping boss; 120 - Compression nut; 121 - Nut cap; 122 - Nut boss; 123 - Anti-slip rib; 124 - Internal thread; 130 - First washer; 140 - Second washer;

[0031] 200 - Water supply and drainage pipeline system; 201 - Tank body; 202 - Edge sidewall. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0034] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0035] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0036] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0037] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0038] Example

[0039] Please see Figure 1 This embodiment provides a multifunctional plastic union fitting 100, which includes a union body 110, a clamping nut 120, a first washer 130, and a second washer 140. The multifunctional plastic union fitting 100 is used to install at the inlet and outlet of a tank 201, thereby facilitating the connection of internal and external pipes of the tank 201.

[0040] In this embodiment, please refer to Figure 4 The union body 110 is provided with a flange boss 111. The flange boss 111 is circular and protrudes from the union body 110 along the radial direction. The flange boss 111 divides the union body 110 into a locking section 1101 and a union section 1102. The locking section 1101 is provided with an external thread 112 that engages with the internal thread 124 of the clamping nut 120 for locking. When installing at the inlet and outlet of the tank 201, the sidewalls corresponding to the inlet and outlet of the tank 201 can be embedded between the flange boss 111 and the clamping nut 120, thereby fixing the multifunctional plastic union fitting 100 to the tank 201. To ensure the airtightness of the tank 201 installation, in this embodiment, a first gasket 130 and a second gasket 140 made of rubber are provided. An installation cavity (not shown in the figure) is formed between the first gasket 130 and the second gasket 140 to seal the inlet and outlet walls of the tank 201. The other side of the first gasket 130 contacts the flange boss 111, and the other side of the second gasket 140 contacts the clamping nut 120. In this embodiment, the main clamping nut 120 and the union body 110 are threadedly locked together, pressing the first gasket 130 and the second gasket 140 on both sides of the tank 201, thereby achieving a sealing effect. The flange boss 111 serves as a limit and also compresses the first gasket 130 and the second gasket 140, ensuring tight contact between them and the external tank 201, thus achieving a seal and preventing leakage.

[0041] Furthermore, in this embodiment, the specific structure of the union body 110 has two forms. Specifically, one of the locking section 1101 and the union section 1102 is provided with a heat fusion socket 113 inside, and the other is provided with a heat fusion socket 113 or a metal internal thread socket 114 inside; that is, the union body 110 can have heat fusion sockets 113 at both ends (e.g., Figure 2 and Figure 7 (As shown), it can also have a heat-fused socket 113 at one end and a metal internal thread socket 114 at the other end (as shown). Figure 3 and Figure 8As shown, the union body 110 meets the requirements of most pipe fittings on the market through two configurations. The "thermal fusion socket 113" refers to the pipe interface formed by thermal fusion connection, specifically the connection formed by heating and melting the pipe and fitting, inserting them into each other, and then cooling and solidifying. The "metal internal thread socket 114" refers to a metal interface with internal threads 124, which can be connected to other fittings by tightening the threads. It should be understood that in this embodiment, the union body 110 is made of plastic and is integrally injection molded; the plastic material is not limited to any specific type. Since the union body 110 in this embodiment is made of plastic, when the metal internal thread socket 114 needs to be set, an insert with metal internal threads 124 is placed in the mold and integrally injection molded with the plastic. After injection molding, the plastic union body 110 and the metal insert are more firmly and reliably combined, the insert is less likely to fall off, and there is no leakage.

[0042] Please refer to Figure 7 The heat-fused socket 113 includes a first-specification socket 115 and a second-specification socket 116. The size of the first-specification socket 115 is smaller than the size of the second-specification socket 116. The first-specification socket 115 is located near the middle of the union body 110, and the second-specification socket 116 is located near the end of the union body 110. It should be understood that the metal internal thread socket 114 may also be provided with two different sizes of sockets.

[0043] Please see Figure 5 and Figure 6 The locking section 1101 and / or the union section 1102 are provided with an indicator groove 117 on the outer surface of the connection between the first specification socket 115 and the second specification socket 116, which facilitates cutting. The indicator groove 117 can clearly inform the user of the cutting position of the cutting tool. When connecting with a second specification pipe, the second specification pipe can be directly inserted into the second specification socket 116 for heat fusion socket connection. When connecting with a first specification pipe, the user can conveniently cut the connection between the first specification socket 115 and the second specification socket 116 according to the indicator groove 117. The remaining second specification socket 116 after cutting can be directly connected to the second specification pipe, making the operation more convenient and the specification applicable range wider.

[0044] Specifically, in this embodiment, the width of the indicator groove 117 is 0.4-0.6 mm, and the depth is 0.4-0.6 mm. By reserving the indicator groove 117 of the above specific size, not only is the strength of the multifunctional plastic connector 100 not affected, but it also facilitates the cutting of the connection between the first specification socket 115 and the second specification socket 116, and will not cause damage to the end of the first specification socket 115, which is beneficial to ensuring the subsequent connection performance.

[0045] The dimensions of the first-specification socket 115 and the second-specification socket 116 are not specifically limited in this application. Commonly available pipe sizes can be selected to improve their applicability.

[0046] For further details, please refer to Figure 4 In this embodiment, the union body 110 is further provided with a clamping boss 118. The clamping boss 118 is circular and protrudes from the union body 110 along the radial direction. The clamping boss 118 is connected to the flange boss 111 and its size is smaller than that of the flange boss 111. The clamping boss 118 facilitates quick installation using external tools such as wrenches when connecting the multi-functional plastic union fitting 100 to the tank 201, or connecting the union body 110 to the pipe fitting. Specifically, the clamping boss 118 is a regular octagon or a regular hexagon, which can be used with commonly available clamping tools, making operation easier.

[0047] Please see Figure 9 In this embodiment, the clamping nut 120 is made of plastic. The clamping nut 120 includes a nut cap 121 and a nut boss 122 connected to each other. An internal thread 124 is located within the nut cap 121. The nut boss 122 protrudes axially along the nut cap 121, and the flange boss 111 has the same wall thickness and size. This design facilitates contact with the second gasket 140, ensuring a sealing effect. The outer surface of the nut cap 121 is provided with multiple anti-slip ribs 123. The main function of the anti-slip ribs 123 is to prevent the clamping tool from slipping, ensuring the installation effect.

[0048] In addition, please see Figure 10 and Figure 11 This embodiment also provides a water supply and drainage pipeline system 200, including a tank 201 and the above-mentioned multifunctional plastic fitting 100. The tank 201 is provided with an inlet and an outlet. The edge sidewall 202 of the tank 201 corresponding to the inlet and outlet is embedded between the clamping nut 120 and the flange boss 111.

[0049] The installation methods for the aforementioned tank 201 and multi-functional plastic union fitting 100 are as follows:

[0050] Insert the locking section 1101 of the union body 110 into the first washer 130. Then, pass the locking section 1101 with external threads 112 through the pre-drilled through hole (inlet / outlet) from the outside of the tank body 201. Next, insert the second washer 140 into the locking section 1101 of the union body 110 from the inside of the tank body 201. Connect the clamping nut 120 to the union body 110 from the inside of the tank body 201 via threads. Tighten the union body 110 and the clamping nut 120 using a wrench or other tools until the clamping nut 120, the tank body 201, and the union body 110 compress the first washer 130 and the second washer 140. Finally, connect the corresponding fittings or pipes inside and outside the tank body 201. If it is necessary to convert to a smaller pipe size, use a cutting tool to cut the union body 110 along the indicator line of the indicator groove 117, and then heat-fuse the exposed first-size spigot 115 to the pipe using a heat fusion tool. Allow the welded area to cool naturally and stand for a period of time. When the spigot is a metal internal thread spigot 114, cut it in a similar way, and then connect it with threads.

[0051] In summary, the multifunctional plastic union fitting 100 provided by this utility model is installed on the tank body 201 by utilizing the external thread 112 of the union body 110 and the internal thread 124 of the clamping nut 120. The installation method is simple and easy to operate. Furthermore, the multifunctional plastic union fitting 100 can connect with heat-fusion socket-type plastic joints and threaded mechanical installation components by utilizing the heat-fusion sockets 113 or metal internal thread sockets 114 at both ends of the union body 110. This connection is faster, more efficient, safer, and more reliable. Moreover, the heat-fusion sockets 113 have two different specifications, allowing users to cut them according to their needs, facilitating operation, reducing installation costs, and meeting the needs of most market applications.

[0052] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A multifunctional plastic union fitting, characterized in that, It includes a union body and a clamping nut. The union body is provided with a flange boss, which divides the union body into a locking section and a union section. The locking section is provided with an external thread that engages with the internal thread of the clamping nut for locking. One of the locking section and the union section is provided with a thermofusion socket, and the other is provided with a thermofusion socket or a metal internal thread socket. The thermofusion socket and / or the metal internal thread socket includes a first-size socket and a second-size socket. The size of the first-size socket is smaller than the size of the second-size socket. The first-size socket is located near the middle of the union body, and the second-size socket is located near the end of the union body.

2. The multifunctional plastic union fitting according to claim 1, characterized in that, The locking section and / or the live joint section have an indicator groove on the outer surface of the connection point between the first-specification socket and the second-specification socket for easy cutting.

3. The multifunctional plastic union fitting according to claim 2, characterized in that, The width of the indicator groove is 0.4-0.6 mm and the depth is 0.4-0.6 mm.

4. The multifunctional plastic connector according to claim 1, characterized in that, The live joint body is also provided with a clamping boss, which is connected to the flange boss and is smaller in size than the flange boss.

5. The multifunctional plastic connector according to claim 4, characterized in that, The clamping boss is either a regular octagon or a regular hexagon.

6. The multifunctional plastic connector according to claim 1, characterized in that, The multifunctional plastic union fitting also includes a first gasket and a second gasket, with an installation cavity formed between the first gasket and the second gasket for sealing the inlet and outlet walls of the tank. The other side of the first gasket contacts the flange boss, and the other side of the second gasket contacts the compression nut.

7. The multifunctional plastic union fitting according to claim 1, characterized in that, The clamping nut includes a nut cap and a nut boss that are connected to each other. The internal thread is provided in the nut cap. The nut boss protrudes along the axial direction of the nut cap and the flange boss has the same wall thickness and size.

8. The multifunctional plastic connector according to claim 7, characterized in that, The outer surface of the nut cap is provided with multiple anti-slip ribs.

9. The multifunctional plastic union fitting according to claim 7, characterized in that, Both the union body and the clamping nut are made of plastic.

10. A water supply and drainage pipeline system, characterized in that, The device includes a tank body and a multifunctional plastic connector as described in any one of claims 1-9, wherein the tank body is provided with an inlet and an outlet, and the edge sidewall of the tank body corresponding to the inlet and outlet is embedded between the clamping nut and the flange boss.

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