Water meter household pipe group

Abstract

The utility model relates to the field of water supply accessories, in particular to a water meter household pipe group which comprises a main pipe and a household sub-pipe arranged on the main pipe, a water meter is connected between the household sub-pipe and the main pipe, the water meter comprises a meter body, a water inlet pipe part and a water outlet pipe part, the water inlet pipe part and the water outlet pipe part are integrally arranged on the two sides of the meter body, and a flow channel is formed in the main pipe. The flow channel is communicated with the water inlet pipe part, a switch valve group is installed at the position, corresponding to the flow channel, of the main pipe and used for controlling connection and disconnection of the water inlet pipe and the flow channel, and the water outlet pipe part is connected with the home-entry sub-pipe. The switch valve set is arranged on the main pipe, the water meter is connected with the connector arranged on the main pipe, the switch valve set controls the flow channel and the water inlet pipe part to be connected or disconnected, and compared with the mode that a switch valve is arranged on the home-entry sub pipe, a section of connecting structure is omitted, the overall sealing performance of the pipe set is guaranteed, and the installation steps are simplified.

Description

Technical Field

[0001] The present application relates to the technical field of water supply accessories, and in particular to a water meter household pipe group. Background Art

[0002] A water meter is a flow meter that is used to measure and distribute water resources correctly and reasonably. The water meter should be installed so that the direction on the meter case is consistent with the flow direction in the pipe. The installation location of the water meter should be as convenient as possible for reading and changing the label, and should be protected from direct exposure to the sun and cold wind.

[0003] In the related art, the household main pipe is installed on the water supply main pipe, and the water supply source flows to each household main pipe through the water supply main pipe. The above-mentioned water meter is installed in the middle section of the household main pipe. A stop valve is provided on the side of the water meter close to the household main pipe, and a check valve is provided on the side away from the household main pipe.

[0004] The problem with the related technology is that the above-mentioned household main pipe is first installed on the water supply main pipe, and then the stop valve, water meter and check valve are installed in sequence, which will require multi-stage pipeline sealing. When there are many connections between the various components, the overall sealing performance of the pipe group is difficult to guarantee and the installation is inconvenient. Utility Model Content

[0005] In order to ensure the overall sealing performance of the main pipe entering the household, the present application provides a water meter household pipe group.

[0006] The water meter household pipe group provided in this application adopts the following technical solution:

[0007] A water meter household pipe group includes a main pipe and an inlet sub-pipe arranged on the main pipe, a water meter is connected between the inlet sub-pipe and the main pipe, the water meter includes a meter body and an inlet pipe part and an outlet pipe part integrally arranged on both sides of the meter body, a flow channel is formed on the main pipe, the flow channel is connected to the inlet pipe part, a switch valve group is installed on the main pipe corresponding to the flow channel, which is used to control the conduction and closing of the inlet pipe part and the flow channel, and the outlet pipe part is connected to the inlet sub-pipe.

[0008] By adopting the above technical solution, the switch valve group is directly arranged on the main pipe, the water inlet pipe part of the water meter is connected to the main pipe, and the switch valve group controls the conduction or closing of the flow channel and the water inlet pipe part, which can save the sealing requirement of a section of the pipeline connection and is easy to install.

[0009] Optionally, the mother pipe is open at both ends, one end of which is connected to a main pipe interface, and the other end is connected to a plug, and a connecting sleeve is provided between the main pipe interface and the mother pipe.

[0010] By adopting the above technical solution, the main pipe interface is used to connect to the water supply source to provide water to each household sub-pipe, and the plug at the other end of the main pipe can seal its port to prevent water leakage.

[0011] Optionally, a first mounting hole is opened on a side of the main pipe close to the water meter, a ferrule connection assembly is arranged in the first mounting hole, the flow channel is formed on the ferrule connection assembly, and the water inlet pipe part is connected to the ferrule connection assembly.

[0012] By adopting the above technical solution, the ferrule connection assembly is arranged on the mother pipe to connect the water inlet pipe part with the mother pipe, and the operation is simple and convenient.

[0013] Optionally, the ferrule connection assembly includes a ferrule joint, a ferrule and a first locking nut, the ferrule joint is threadedly connected to the first mounting hole, both ends of the ferrule joint are open, one end is connected to the mother pipe, the ferrule is inserted into the other end of the ferrule joint, the first locking nut is threadedly connected to the outside of the ferrule joint, and the middle parts of the ferrule and the ferrule joint are respectively provided with vertically extending and interconnected through holes to form the flow channel.

[0014] By adopting the above technical solution, during actual installation, the water meter can be directly installed on the ferrule corresponding to the mother pipe. The ferrule, ferrule joint and the first locking nut are arranged in coordination. After the water inlet pipe is inserted into the first locking nut, the first locking nut is tightened on the ferrule joint so that the ferrule presses the surface of the water inlet pipe to form a seal.

[0015] Optionally, an installation gap is reserved between the ferrule and the locking sleeve, a spring sleeve is filled in the installation gap, an annular groove is provided on a side of the ferrule facing the spring sleeve, and a first sealing ring is embedded in the annular groove.

[0016] By adopting the above technical solution, the spring sleeve is arranged between the water inlet pipe part and the first locking nut. When the first locking nut is tightened, the spring sleeve further applies a compressive force to the water inlet pipe part, and cooperates with the first sealing ring embedded in the annular groove to further improve the sealing effect of the connection between the water inlet pipe part and the mother pipe.

[0017] Optionally, a second mounting hole coaxially arranged with the flow channel is formed on a side of the main pipe away from the water meter, and the switch valve group includes a valve cover installed in the threaded mounting hole, a valve stem inserted on the valve cover and extending into the main pipe, and a valve flap fixed to an end of the valve stem away from the valve cover, the flow channel and the valve flap are arranged in coordination, and an upwardly extending active cavity is formed on the end of the valve cover facing the main pipe, and the valve stem is configured as a structure that can be raised and lowered in the active cavity.

[0018] By adopting the above technical solution, the valve stem is controlled to move up and down to drive the valve disc to move. When the valve disc abuts against one end face constituting the flow channel, the connection between the flow channel and the mother pipe can be closed. When the valve disc moves away from the flow channel, the flow channel is connected to the mother pipe.

[0019] Optionally, the valve stem is threadedly connected to the valve disc, and an annular groove is provided at the matching position of the valve stem and the valve cover, and a second sealing ring is embedded in the annular groove.

[0020] By adopting the above technical solution, the provision of the second sealing ring can improve the sealing effect between the valve stem and the valve cover, thereby preventing water leakage.

[0021] Optionally, a groove is formed on one end surface of the valve flap facing the flow channel, a sealing gasket is arranged in the groove, coaxially distributed threaded holes are formed in the middle of the valve flap and the sealing gasket, and a second locking nut is connected in the threaded hole.

[0022] By adopting the above technical solution, the sealing gasket is arranged on the side of the valve disc facing the flow channel to improve the sealing effect of the valve disc on the flow channel. The provision of the second locking nut can make the sealing gasket and the valve disc tightly connected.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. By setting the switch valve group on the main pipe, connecting the water meter to the joint set on the main pipe, and controlling the conduction or closing of the flow channel and the water inlet pipe by the switch valve group, compared with setting the switch valve on the household sub-pipe, a section of the connection structure is reduced, the overall sealing performance of the pipe group is ensured, and the installation steps are simplified. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the main structure of an embodiment of the present application.

[0026] Figure 2 It is a schematic diagram of a partial explosion structure of an embodiment of the present application.

[0027] Figure 3 It is a schematic diagram of the side cross-sectional structure of an embodiment of the present application.

[0028] Figure 4 yes Figure 3 A schematic diagram of the enlarged structure at point A in the middle.

[0029] Figure 5 yes Figure 3 A magnified schematic diagram of the structure at point B in the middle.

[0030] Figure numerals: 1. main pipe; 2. inlet pipe; 3. water meter; 31. meter body; 32. water inlet pipe; 33. water outlet pipe; 4. flow channel; 5. switch valve group; 51. valve cover; 52. valve stem; 53. valve disc; 6. main pipe interface; 7. plug; 8. connecting sleeve; 9. ferrule connection assembly; 91. ferrule joint; 92. ferrule; 93. first locking nut; 10. spring sleeve; 11. first sealing ring; 12. movable chamber; 13. second sealing ring; 14. sealing gasket; 15. second locking nut. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-5 This application is described in further detail.

[0032] The present application embodiment discloses a water meter household pipe group. Figure 1 A water meter 3 household pipe group includes a mother pipe 1. The main body of the mother pipe 1 is preferably a square tubular structure. Threaded sleeve structures are formed at both ends of its length direction. One end is connected to a main pipe joint through a connecting sleeve 8, and the other end is connected to a plug 7. When supplying water, the water supply source is connected to the main pipe joint through a pipeline to send the water source to the mother pipe 1. The plug 7 is sealed and connected to the mother pipe 1 to prevent the water source from leaking from the end of the mother pipe 1.

[0033] Reference Figure 2 , through holes are respectively opened on the two opposite sides of the mother pipe 1, and a tubular structure is extended inside the through holes to form a first mounting hole and a second mounting hole, and the inner walls of the first mounting hole and the second mounting hole are both arranged to be threaded. The second mounting hole is provided with a ferrule connection assembly 9 for connecting the water meter 3. Further, the water meter 3 includes an inlet pipe portion 32, a meter body 31 and an outlet pipe portion 33, and the inlet pipe portion 32 and the outlet pipe portion 33 are respectively formed on both sides of the meter body 31, wherein the inlet pipe portion 32 is installed on the ferrule connection assembly 9, and the outlet pipe portion 33 is used to connect the household sub-pipe 2. Further, a flow channel 4 is formed in the ferrule connection assembly 9 for connecting the mother pipe 1 and the inlet pipe portion 32.

[0034] When the water source enters the main pipe 1, it can flow to the water inlet pipe 32 through the flow channel 4 formed on the ferrule connection assembly 9, and then flow to the household sub-pipe 2 through the meter body 31 and the water outlet pipe 33. In this process, the meter body 31 can accurately measure the water flow. The specific structure and measurement principle of the above-mentioned meter body 31 are common knowledge and will not be described in detail here.

[0035] Reference Figure 3 and Figure 4, the ferrule connection assembly 9 includes a ferrule joint 91, a ferrule 92 and a first locking nut 93. The ferrule joint 91 is threadedly connected to the second mounting hole, a ferrule 92 is provided on the outer sleeve of the ferrule joint 91, and the first locking nut 93 is threadedly connected to the outer side of the ferrule joint 91. It can be understood that when connecting the water meter 3 and the ferrule connection assembly 9, the water inlet pipe part 32 is inserted into the first locking nut 93, and then the first locking nut 93 is tightened on the outside of the ferrule joint 91. During the tightening process, the ferrule 92 is pressed to fit tightly against the outer wall of the water inlet pipe part 32, so that the water inlet pipe part 32 is sealed and connected to the mother pipe 1 through the ferrule connection assembly 9.

[0036] Coaxially distributed through holes are provided in the middle of the ferrule joint 91 and the ferrule 92 , and the two through holes are interconnected to form a flow channel 4 .

[0037] Furthermore, a spring sleeve 10 is provided between the first locking nut 93 and the ferrule 92. When the first locking nut 93 is tightened, the ferrule 92 and the spring sleeve 10 are pressed against the outer wall of the water inlet pipe 32, further improving the sealing and connection effect. Furthermore, an annular groove is formed on the surface of the ferrule 92, and a first sealing ring 11 is embedded in the annular groove to improve the sealing effect.

[0038] Reference Figure 3 and Figure 5 , a switch valve group 5 is arranged at the first mounting hole, including a valve cover 51, a valve stem 52 and a valve flap 53, wherein the valve cover 51 is threadedly connected to the first mounting hole, a through hole penetrating from top to bottom is opened in the middle of the valve cover 51, the valve stem 52 is arranged in the through hole, and the valve flap 53 is arranged at the end of the valve stem 52 away from the valve cover 51, and the valve flap 53 is preferably a cylindrical block structure, coaxially distributed with the flow channel 4 and having a diameter greater than the diameter of the flow channel 4. When the flow channel 4 is in a blocked state, the valve flap 53 abuts against one end surface of the ferrule joint 91 constituting the flow channel 4 to seal the connection between the flow channel 4 and the mother pipe 1. By rotating the valve stem 52 in a certain direction, the valve flap 53 can be moved away from the flow channel 4, thereby making the flow channel 4 and the mother pipe 1 conductive.

[0039] It is understandable that the structure for realizing the rotation and lifting of the valve stem 52 relative to the valve cover 51 belongs to conventional technology and is not specifically limited here. The valve stem 52 and the valve cover 51 can specifically adopt the following structure: a threaded hole is opened on the side of the valve cover 51 facing the valve stem 52, and an external thread matching the threaded hole is formed on the surface of the valve stem 52, so that the two are threadedly connected.

[0040] Furthermore, an annular groove is formed on the surface of the valve stem 52 , and a second sealing ring 13 is embedded in the annular groove to improve the sealing effect between the valve stem 52 and the valve cover 51 .

[0041] Reference Figure 3The portion of the valve cover 51 extending into the mother pipe 1 is provided with an active cavity 12, which is used to provide an active space for the valve stem 52 and the valve flap 53 to rise and fall, and the size of the active cavity 12 is larger than the aperture of the matching portion of the valve stem 52 and the valve cover 51. In order to limit the lifting height of the valve stem 52, an annular stopper is formed on the surface of the valve stem 52, and the outer diameter of the annular stopper is slightly smaller than the size of the active cavity 12, so that when the valve stem 52 drives the valve flap 53 to rise to the maximum height, the annular stopper will abut against the inner wall of the valve cover 51 to play a limiting role.

[0042] A groove is provided on the side of the valve flap 53 facing the flow channel 4, and a sealing gasket 14 is provided in the groove. When the valve flap 53 abuts against the end surface constituting the flow channel 4, the sealing effect can be improved to prevent water from leaking from the abutment. Furthermore, the sealing gasket 14 and the valve flap 53 are provided with mutually connected threaded holes in the middle, and a second locking nut 15 is connected in the threaded hole to fasten the sealing gasket 14 to the valve flap 53.

[0043] The implementation principle of a water meter 3 household pipe group in an embodiment of the present application is: when installing the water meter 3 and the household sub-pipe 2, first insert the water inlet pipe part 32 of the water meter 3 into the first locking nut 93. During the process of threading the first locking nut 93 to the ferrule joint 91, the ferrule 92 and the spring sleeve 10 can apply a compressive force to the outer wall of the water inlet pipe part 32, so that the water inlet pipe part 32 is sealed and connected with the mother pipe 1, and the household sub-pipe 2 is threadedly connected with the water outlet pipe part 33 of the water meter 3.

[0044] Initially, the valve flap 53 abuts against one end face of the ferrule joint 91, so that the flow channel 4 is in a closed state. When it needs to be opened, the valve flap 53 is driven to rise by rotating the valve stem 52, so that the valve flap 53 is separated from the ferrule joint 91. At this time, the flow channel 4 is connected, and the water source in the main pipe 1 can flow to the household sub-pipe 2 through the flow channel 4 and the water meter 3.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A water meter household pipe set, comprising a main pipe (1) and a household inlet pipe (2) arranged on the main pipe (1), a water meter (3) being connected between the household inlet pipe (2) and the main pipe (1), characterized in that: The water meter (3) comprises a meter body (31) and a water inlet pipe portion (32) and a water outlet pipe portion (33) integrally arranged on both sides of the meter body (31); a flow channel (4) is formed on the main pipe (1); the flow channel (4) is connected to the water inlet pipe portion (32); a switch valve group (5) is installed on the main pipe (1) at a position corresponding to the flow channel (4) for controlling the conduction and closing of the water inlet pipe portion (32) and the flow channel (4); and the water outlet pipe portion (33) is connected to the household sub-pipe (2).

2. A water meter household pipe set according to claim 1, characterized in that: The mother pipe (1) is a structure with two ends open, one end of which is connected to a main pipe interface (6) and the other end is connected to a plug (7), and a connecting sleeve (8) is provided between the main pipe interface (6) and the mother pipe (1).

3. A water meter household pipe set according to claim 1, characterized in that: A first mounting hole is provided on a side of the main pipe (1) close to the water meter (3), a ferrule connection assembly (9) is provided in the first mounting hole, the flow channel (4) is formed on the ferrule connection assembly (9), and the water inlet pipe portion (32) is connected to the ferrule connection assembly (9).

4. A water meter household pipe set according to claim 3, characterized in that: The ferrule connection assembly (9) comprises a ferrule joint (91), a ferrule (92) and a first locking nut (93); the ferrule joint (91) is threadedly connected to the first mounting hole; both ends of the ferrule joint (91) are open, one end of which is connected to the mother pipe (1); the ferrule (92) is inserted into the other end of the ferrule joint (91); the first locking nut (93) is threadedly connected to the outside of the ferrule joint (91); and the middle parts of the ferrule (92) and the ferrule joint (91) are respectively provided with vertically extending through holes that are interconnected to form the flow channel (4).

5. A water meter household pipe set according to claim 4, characterized in that: An installation gap is reserved between the clamping sleeve (92) and the locking sleeve, a spring sleeve (10) is filled in the installation gap, an annular groove is formed on a side of the clamping sleeve (92) facing the spring sleeve (10), and a first sealing ring (11) is embedded in the annular groove.

6. A water meter household pipe set according to claim 1, characterized in that: A second mounting hole coaxially arranged with the flow channel (4) is provided on a side of the main pipe (1) away from the water meter (3); the switch valve assembly (5) comprises a valve cover (51) mounted in the threaded mounting hole, a valve stem (52) inserted on the valve cover (51) and extending into the main pipe (1), and a valve flap (53) fixed to an end of the valve stem (52) away from the valve cover (51); the flow channel (4) and the valve flap (53) are arranged in coordination; an upwardly extending movable cavity (12) is provided on an end of the valve cover (51) facing the main pipe (1); and the valve stem (52) is configured to be able to rise and fall in the movable cavity (12).

7. A water meter household pipe assembly according to claim 6, characterized in that: The valve stem (52) is threadedly connected to the valve disc (53); an annular groove is provided at the matching position of the valve stem (52) and the valve cover (51); a second sealing ring (13) is embedded in the annular groove.

8. A water meter household pipe assembly according to claim 6, characterized in that: A groove is formed on one end surface of the valve flap (53) facing the flow channel (4), a sealing gasket (14) is arranged in the groove, and coaxially distributed threaded holes are formed in the middle of the valve flap (53) and the sealing gasket (14), a second locking nut (15) is connected in the threaded hole.

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