Telescopic connecting pipe assembly and valve control water meter

Abstract

The utility model provides a telescopic connecting pipe assembly and a valve control water meter, and relates to the technical field of valve control water meters, according to the telescopic connecting pipe assembly, a base body is provided with a pipe part, the pipe part is inserted into a connector in a sliding mode in the axial direction, a limiting ring is installed on the connector through a connecting piece, the limiting ring is sleeved with the pipe part, and the head end of the pipe part is provided with a convex ring part; the outer diameter of the protruding ring part is smaller than the inner diameter of the limiting ring in the natural state so as to prevent the connector and the limiting ring from slipping off from the pipe part, the base body can stretch out and draw back relative to the connector, and therefore the position of the base body can be adjusted. The valve control water meter adopts a base body configured as a valve shell and is provided with a valve element assembly; the adapter is detachably connected with the water meter, and the adapter is connected with the base body; the valve element assembly is located between the connector and the adapter and used for adjusting and controlling connection and disconnection of the connector and the adapter. The installation positions of the water meter and the valve shell can be adjusted, and the telescopic connecting pipe assembly can be prevented from being disengaged and scattered in the transportation and assembly process.

Description

Technical Field

[0001] The utility model relates to the technical field of valve-controlled water meters, in particular to a telescopic pipe assembly and a valve-controlled water meter. Background Art

[0002] The valve-controlled water meter in the prior art usually adopts an integrated structure of the valve body pipe and the meter case, which makes it difficult to adjust the position and posture of the meter case when the water meter is installed. Although the telescopic pipe assembly is used to install the valve-controlled water meter, the installation position of the meter case can be adjusted, but there is a risk of the telescopic pipe being disengaged, and the technical problem of parts being easily scattered during the transportation and assembly of the equipment. Utility Model Content

[0003] The utility model aims to provide a telescopic pipe assembly and a valve-controlled water meter, so as to alleviate the technical problem that the telescopic pipe assembly is easy to be separated and scattered.

[0004] In a first aspect, the telescopic pipe assembly provided by the utility model comprises: a base, a joint, a limit ring and a connecting piece;

[0005] The base body is provided with a tube portion, and the tube portion is inserted into the joint in an axially sliding manner;

[0006] The limiting ring is installed on the joint through the connecting piece, and the limiting ring is sleeved on the pipe part;

[0007] A convex ring portion is provided at the head end of the tube portion, and the outer diameter of the convex ring portion is smaller than the inner diameter of the limiting ring in a natural state, so as to prevent the joint and the limiting ring from slipping off the tube portion.

[0008] In combination with the first aspect, the utility model provides a first possible implementation manner of the first aspect, wherein the limiting ring is provided with a notch extending from the inner ring to the outer ring.

[0009] In combination with the first aspect, the utility model provides a second possible implementation of the first aspect, wherein the limiting ring comprises: an outer ring portion and an inner ring portion, the outer ring portion and the inner ring portion are coaxial and connected to form an integral structure;

[0010] The connecting piece is sleeved on the inner ring portion, and the outer ring portion is pressed tightly between the connecting piece and the joint.

[0011] In combination with the first aspect, the utility model provides a third possible implementation of the first aspect, wherein the joint is provided with an inner ring groove, and a first sealing ring sleeved on the pipe portion is installed inside the inner ring groove.

[0012] In combination with the third possible implementation of the first aspect, the utility model provides a fourth possible implementation of the first aspect, wherein a first gasket is installed between the joint and the limiting ring, and the first sealing ring is pressed between the joint and the first gasket.

[0013] In a second aspect, the valve-controlled water meter provided by the utility model comprises: a valve core assembly, an adapter and the retractable pipe assembly described in the first aspect;

[0014] The base is configured as a valve housing and is installed with the valve core assembly;

[0015] The adapter is detachably connected to the water meter, and the adapter is connected to the base;

[0016] The valve core assembly is located between the joint and the adapter, and is used to regulate the connection and disconnection of the joint and the adapter.

[0017] In combination with the second aspect, the utility model provides a first possible implementation of the second aspect, wherein the valve core assembly comprises: a ball valve core and a driving device connected to the ball valve core;

[0018] The ball valve core is rotatably fitted in the base;

[0019] A second sealing ring and a second gasket are also installed in the base, the second gasket is attached to the ball valve core, the second sealing ring and the second gasket are coaxially arranged, and the second sealing ring is pressed between the second gasket and the base.

[0020] In combination with the second aspect, the utility model provides a second possible implementation of the second aspect, wherein the adapter is installed with a third sealing ring and a third gasket;

[0021] The ball valve core is located between the second gasket and the third gasket, and the third gasket is attached to the ball valve core;

[0022] The third sealing ring is coaxially arranged with the third gasket, and the third sealing ring is compressed between the third gasket and the adapter.

[0023] In combination with the second aspect, the utility model provides a third possible implementation of the second aspect, wherein a fourth sealing ring is installed between the adapter and the base.

[0024] In combination with the second aspect, the utility model provides a fourth possible implementation of the second aspect, wherein the adapter comprises: an adapter screw sleeve, an adapter tube and an adapter nut;

[0025] The adapter nut is threadably connected to the base body, one end of the adapter tube is threadably connected to the adapter nut, and the other end of the adapter tube is provided with a limiting portion;

[0026] The adapter nut is adapted to the water meter, and the adapter nut is sleeved on the adapter tube;

[0027] The adapter nut is provided with a snap ring portion, and the snap ring portion is limited between the adapter nut sleeve and the limiting portion along the axial direction of the adapter tube.

[0028] The embodiment of the utility model brings the following beneficial effects: a base body is provided with a tube part, the tube part is inserted into the joint in an axial sliding manner, a limiting ring is installed on the joint through a connecting piece, and the limiting ring is sleeved on the tube part, a convex ring part is provided at the head end of the tube part, and the outer diameter of the convex ring part is smaller than the inner diameter of the limiting ring in a natural state, so as to prevent the joint and the limiting ring from slipping off the tube part, and the base body is retractable relative to the joint, thereby realizing the position adjustment of the base body. Moreover, the convex ring part can be slipped off by the limiting ring, thereby preventing the joint from scattering relative to the base body, and avoiding the technical problem of the retractable pipe assembly being disengaged and scattered during transportation and assembly.

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the related technologies, the drawings required for use in the specific implementation methods or the related technical descriptions will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0031] Figure 1 Partial cross-sectional view of a valve-controlled water meter provided in an embodiment of the utility model Figure 1 ;

[0032] Figure 2 A schematic diagram of a limit ring of a retractable pipe assembly provided in an embodiment of the utility model;

[0033] Figure 3 Partial cross-sectional view of a valve-controlled water meter provided in an embodiment of the utility model Figure 2 ;

[0034] Figure 4 for Figure 3 A partial enlarged schematic diagram of position A in the middle.

[0035] Icons: 001 - base; 101 - pipe; 102 - convex ring; 002 - connector; 201 - inner ring groove; 003 - limit ring; 301 - notch; 310 - outer ring; 320 - inner ring; 004 - connector; 005 - first sealing ring; 006 - first gasket; 007 - valve core assembly; 701 - second sealing ring; 702 - second gasket; 703 - third sealing ring; 704 - third gasket; 710 - ball valve core; 720 - drive device; 008 - adapter; 810 - adapter screw; 820 - adapter tube; 821 - limit part; 830 - adapter nut; 831 - snap ring; 009 - fourth sealing ring; 010 - fifth sealing ring. DETAILED DESCRIPTION

[0036] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are only used to describe the difference in names, and cannot be understood as indicating or implying relative importance. The physical quantities in the formula, if not separately marked, should be understood as basic quantities of the basic units of the International System of Units, or derived quantities derived from the basic quantities through mathematical operations such as multiplication, division, differentiation or integration.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] like Figure 1 , Figure 3 and Figure 4As shown, the telescopic pipe assembly provided by the embodiment of the utility model includes: a base 001, a joint 002, a limit ring 003 and a connector 004; the base 001 is provided with a pipe portion 101, and the pipe portion 101 is axially slidably inserted into the joint 002; the limit ring 003 is installed on the joint 002 through the connector 004, and the limit ring 003 is sleeved on the pipe portion 101; a convex ring portion 102 is provided at the head end of the pipe portion 101, and the outer diameter of the convex ring portion 102 is smaller than the inner diameter of the limit ring 003 in the natural state, so as to prevent the joint 002 and the limit ring 003 from slipping off the pipe portion 101.

[0040] During assembly, the connector 004 is first sleeved on the tube 101, and then the stop ring 003 is radially expanded and sleeved on the tube 101; or, external force is used to squeeze along the axial direction to force the stop ring 003 to pass over the convex ring 102 and sleeve on the tube 101. Subsequently, the convex ring 102 and the tube 101 are inserted into the joint 002, and the joint 002 is connected by the connector 004. On the one hand, the joint 002 can slide along the tube 101 relative to the base 001; on the other hand, the convex ring 102 can prevent the stop ring 003 from slipping off the tube 101, thereby preventing the joint 002 from falling relative to the base 001.

[0041] like Figure 1 and Figure 2 As shown, in the embodiment of the utility model, the stop ring 003 is provided with a notch 301 extending from the inner ring to the outer ring, and the stop ring 003 can expand in the radial direction to increase the opening of the notch 301, thereby expanding the radial dimension variation range of the stop ring 003, so that the stop ring 003 can pass over the convex ring portion 102 with a larger diameter when being stretched, and be sleeved on the tube portion 101. In the natural state, the stop ring 003 rebounds and contracts in the radial direction, and the inner diameter of the stop ring 003 is approximately equal to the outer diameter of the tube portion 101 after natural contraction.

[0042] Furthermore, the limiting ring 003 includes: an outer ring portion 310 and an inner ring portion 320 , the outer ring portion 310 and the inner ring portion 320 are coaxial and connected as an integral structure; the connecting piece 004 is sleeved on the inner ring portion 320 , and the outer ring portion 310 is pressed between the connecting piece 004 and the joint 002 .

[0043] See also Figure 1 , Figure 2 and Figure 3The connecting piece 004 is connected to the joint 002 by threaded fitting, and the connecting piece 004 has a pushing portion that abuts against the end surface of the outer ring portion 310 facing away from the joint 002. The outer ring portion 310 is pressed between the pushing portion of the connecting piece 004 and the joint 002, thereby realizing the axial positioning of the outer ring portion 310 relative to the joint 002; in addition, the pushing portion of the connecting piece 004 surrounds the inner ring portion 320, which can limit the radial expansion of the limit ring 003, thereby preventing the inner diameter of the limit ring 003 from increasing and slipping through the convex ring portion 102.

[0044] In addition, a plurality of notches may be arranged at intervals along the circumference of the limiting ring 003 , which can not only reduce the weight of the structure but also increase the range of radial deformation of the limiting ring 003 .

[0045] like Figure 1 and Figure 3 As shown, the joint 002 is provided with an inner annular groove 201 , inside which a first sealing ring 005 sleeved on the pipe portion 101 is installed, and the first sealing ring 005 is compressed between the pipe portion 101 and the joint 002 , thereby ensuring the sealing at the fitting point between the pipe portion 101 and the joint 002 .

[0046] Furthermore, a first gasket 006 is installed between the joint 002 and the limiting ring 003 , and the first sealing ring 005 is compressed between the joint 002 and the first gasket 006 .

[0047] On one hand, the first sealing ring 005 is compressed radially between the pipe portion 101 and the joint 002; on the other hand, the first sealing ring 005 is compressed axially between the joint 002 and the first gasket 006. As the connector 004 is tightened, the stop ring 003 squeezes the first gasket 006, thereby increasing the axial compression force on the first sealing ring 005, thereby improving the sealing effect of the first sealing ring 005.

[0048] like Figure 1 and Figure 3 As shown, the valve-controlled water meter provided by the embodiment of the utility model includes: a valve core assembly 007, an adapter 008 and the retractable pipe assembly recorded in the above-mentioned embodiment; the base 001 is configured as a valve shell and the valve core assembly 007 is installed; the adapter 008 is detachably connected to the water meter, and the adapter 008 is connected to the base 001; the valve core assembly 007 is located between the joint 002 and the adapter 008, and is used to regulate the connection and disconnection of the joint 002 and the adapter 008.

[0049] The valve-controlled water meter described in this embodiment has the technical effect of the above-mentioned retractable pipe assembly. In addition, the joint 002, the base 001, the adapter 008 and the water meter are designed in sections, which improves the flexibility of the installation of the valve-controlled water meter. During installation, the joint 002 and the water meter can be connected to the water pipe respectively, and then the base 001 with the valve core assembly 007 can be assembled, and the base 001 can be connected to the water meter through the adapter 008.

[0050] In an embodiment of the utility model, the valve core assembly 007 includes: a ball valve core 710 and a driving device 720 connected to the ball valve core 710; the ball valve core 710 is rotatably fitted in the base 001; a second sealing ring 701 and a second gasket 702 are also installed in the base 001, the second gasket 702 is fitted to the ball valve core 710, the second sealing ring 701 and the second gasket 702 are coaxially arranged, and the second sealing ring 701 is pressed between the second gasket 702 and the base 001.

[0051] The driving device 720 can use an electric control driving device to provide power to the ball valve core 710, so as to drive the ball valve core 710 to rotate to realize the on-off switching of the valve. The ball valve core 710 contacts the second gasket 702, and forms a seal with the second sealing ring 701 along the circumference of the second gasket 702, which can prevent the ball valve core 710 from directly causing wear to the second sealing ring 701, thereby extending the service life of the second sealing ring 701.

[0052] Furthermore, the adapter 008 is installed with a third sealing ring 703 and a third gasket 704; the ball valve core 710 is located between the second gasket 702 and the third gasket 704, and the third gasket 704 is attached to the ball valve core 710; the third sealing ring 703 is coaxially arranged with the third gasket 704, and the third sealing ring 703 is compressed between the third gasket 704 and the adapter 008. The third sealing ring 703 forms a seal along the circumference of the third gasket 704, and contacts the ball valve core 710 through the third gasket 704, thereby preventing the ball valve core 710 from causing wear to the third gasket 704.

[0053] In addition, a fourth sealing ring 009 is installed between the adapter 008 and the base 001 , and a seal is formed between the adapter 008 and the base 001 through the fourth sealing ring 009 .

[0054] Further, the adapter 008 includes: an adapter screw sleeve 810, an adapter tube 820 and an adapter nut 830; the adapter screw sleeve 810 is threadedly connected to the base 001, one end of the adapter tube 820 is threadedly connected to the adapter screw sleeve 810, and the other end of the adapter tube 820 is provided with a limiter 821; the adapter nut 830 is adapted to the water meter, and the adapter nut 830 is sleeved on the adapter tube 820; the adapter nut 830 is provided with a clamping ring 831, and the clamping ring 831 is limited between the adapter screw sleeve 810 and the limiter 821 along the axial direction of the adapter tube 820. In addition, a fifth sealing ring 010 can be installed between the adapter screw sleeve 810 and the adapter tube 820. The adapter nut 830 can be selected and adapted according to the water meter interface, so that the telescopic tube assembly can be applied to water meters of different models and specifications.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A retractable pipe assembly, characterized in that: include: A base (001), a joint (002), a limiting ring (003) and a connecting piece (004); The base body (001) is provided with a tube portion (101), and the tube portion (101) is inserted into the joint (002) in an axially slidable manner; The limiting ring (003) is installed on the joint (002) through the connecting piece (004), and the limiting ring (003) is sleeved on the pipe part (101); The head end of the tube (101) is provided with a convex ring (102), the outer diameter of the convex ring (102) being smaller than the inner diameter of the limit ring (003) in a natural state, so as to prevent the joint (002) and the limit ring (003) from slipping off the tube (101).

2. The retractable pipe assembly according to claim 1, characterized in that: The limiting ring (003) is provided with a notch (301) penetrating from the inner ring to the outer ring.

3. The retractable pipe assembly according to claim 1 or 2, characterized in that: The limiting ring (003) comprises: an outer ring portion (310) and an inner ring portion (320), wherein the outer ring portion (310) and the inner ring portion (320) are coaxial and connected to form an integral structure; The connecting piece (004) is sleeved on the inner ring portion (320), and the outer ring portion (310) is pressed tightly between the connecting piece (004) and the joint (002).

4. The retractable pipe assembly according to claim 1, characterized in that: The joint (002) is provided with an inner annular groove (201), and a first sealing ring (005) sleeved on the pipe part (101) is installed inside the inner annular groove (201).

5. The retractable pipe assembly according to claim 4, characterized in that: A first gasket (006) is installed between the joint (002) and the limiting ring (003), and the first sealing ring (005) is pressed tightly between the joint (002) and the first gasket (006).

6. A valve-controlled water meter, characterized in that: include: A valve core assembly (007), an adapter (008), and a telescopic pipe assembly as described in any one of claims 1 to 5; The base (001) is configured as a valve housing and is installed with the valve core assembly (007); The adapter (008) is detachably connected to the water meter, and the adapter (008) is connected to the base (001); The valve core component (007) is located between the connector (002) and the adapter (008) and is used to regulate the connection and disconnection between the connector (002) and the adapter (008).

7. The valve-controlled water meter according to claim 6, characterized in that: The valve core assembly (007) comprises: a ball valve core (710) and a driving device (720) connected to the ball valve core (710); The ball valve core (710) is rotatably fitted into the base body (001); A second sealing ring (701) and a second gasket (702) are also installed in the base (001); the second gasket (702) is fitted to the ball valve core (710); the second sealing ring (701) and the second gasket (702) are coaxially arranged; and the second sealing ring (701) is pressed between the second gasket (702) and the base (001).

8. The valve-controlled water meter according to claim 7, characterized in that: The adapter (008) is installed with a third sealing ring (703) and a third gasket (704); The ball valve core (710) is located between the second gasket (702) and the third gasket (704), and the third gasket (704) is attached to the ball valve core (710); The third sealing ring (703) is coaxially arranged with the third gasket (704), and the third sealing ring (703) is compressed between the third gasket (704) and the adapter (008).

9. The valve-controlled water meter according to claim 6, characterized in that: A fourth sealing ring (009) is installed between the adapter (008) and the base (001).

10. The valve-controlled water meter according to claim 6, characterized in that: The adapter (008) comprises: an adapter screw sleeve (810), an adapter tube (820) and an adapter nut (830); The transfer screw sleeve (810) is threadedly connected to the base body (001), one end of the transfer tube (820) is threadedly connected to the transfer screw sleeve (810), and the other end of the transfer tube (820) is provided with a limiting portion (821); The adapter nut (830) is compatible with the water meter, and the adapter nut (830) is sleeved on the adapter tube (820); The transfer nut (830) is provided with a snap ring portion (831), and the snap ring portion (831) is limited in position between the transfer nut sleeve (810) and the limiting portion (821) along the axial direction of the transfer tube (820).

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