CN1437007A

CN1437007A - Water meter connecting apparatus

Info

Publication number: CN1437007A
Application number: CN02124844A
Authority: CN
Inventors: 落合优; 松浦伸幸; 山口寿之; 西村友志
Original assignee: Kazu Endustry K K
Current assignee: Kazu Endustry K K
Priority date: 2002-02-08
Filing date: 2002-06-18
Publication date: 2003-08-20
Anticipated expiration: 2022-06-18
Also published as: HK1058230A1; JP3845586B2; KR100549671B1; SG98482A1; TW524913B; CN1213282C; KR20030067452A; JP2003232055A

Abstract

Water meter installation unit 1 consistes of water stop bolt 2 and check valve 3 which connects to opening M1 and M2 of water meter M respectively, and base 4 which joints water stop bolt and check valve on the axis of the opening M1 and M2 of the water meter M at intervals wider than whole length of water meter. By fixing water stop bolt and check valve on the base, the opening M1 and M2 of the water meter M are able to against the opening 6 of the water stop bolt and the opening 31 of the check valve 3 with an extendable pipe 29, which is able to insert and withdraw freely through opening 6 or 31 thereof in water-tight state via a round base end 28 in interior 27, to be put either on the end of opening 6 of the water stop bolt 2 or the opening 31 of the check valve 3. According to the insert and withdraw of the extendable pipe, water meter can be easily amounted between water stop bolt and check valve.

Description

Water meter connecting apparatus

Technical field

The present invention relates to a kind of water meter connecting apparatus, rely on this device, the water meter that is installed in the running water pipe of each indoor set of equipments etc. can connect and pull down easily.

Background technology

Usually, in running water pipe, water meter is constructed like this, promptly stopcock and a retaining valve are being connected the cock valve port (inlet) and the check-valve port (outlet) of water meter respectively, when changing water meter, new water meter will be positioned between upstream side and the downstream, and by its with stopcock and retaining valve between be connected and be connected on the running water pipe.

Yet, under many circumstances, with water meter after remove between stopcock and the retaining valve, the center of the water meter coupling part on stopcock and the retaining valve has not just aligned each other.In addition, generally speaking, because the installing space of water meter in indoor set of equipments is very narrow, therefore be difficult to the entrance and exit of water meter is connected on the corresponding connector of stopcock and retaining valve, this just brings a problem, and the replacing or the new clothes that promptly are connected all water meters in the indoor set of equipments of each family expenses all are to bother very much with consuming time.

Summary of the invention

The present invention be directed to and other problems is developed.The present invention comprises a kind of device, it comprises: a stopcock and a retaining valve, they are connecting the entrance and exit of water meter respectively, and base, its be used for corresponding stopcock and retaining valve along the water meter inlet with export between be connected axis arranged and with separate greater than the interval of water meter length overall, by stopcock and retaining valve are fixed on the base, the water meter inlet that is placed between stopcock and the retaining valve is complementary with stopcock outlet and retaining valve inlet respectively with outlet, flexible pipe is located on any one in entering the mouth of stopcock outlet and retaining valve, be embedded with an annular base portion that can in inboard opening portion, slide with the watertightness state on the flexible pipe, thereby make flexible pipe to advance and retreat, like this, by the advance and retreat of flexible pipe, water meter can be settled easily and be connected between stopcock and the retaining valve.

Say that briefly because the present invention comprises a kind of device 1, it comprises: a stopcock 2 and a retaining valve 3, they are connecting inlet M1 and the outlet M2 of water meter M respectively; And base 4, it was used for corresponding stopcock 2 and retaining valve 3 along being connected axis arranged and separating between the inlet M1 of water meter M and the outlet M2, the spacing of separating is greater than the length overall that is arranged in the water meter M between them, therefore, only need stopcock 2 and retaining valve 3 are fixed on the base 4, promptly can make the outlet 6 of stopcock 2 and the inlet 31 of retaining valve 3 be positioned at the inlet M1 of water meter M and export the M2 place easily, and because stopcock 2, retaining valve 3 and water meter M can be fitted together compactly, therefore whole device 1 can be made comparatively compact.

In addition,, formed the

side surface

25 and 35 of annular on the

base coupling part

10 and 34, also formed

circular ring part

26 and 36 in outlet 6 one sides of stopcock 2 and inlet 31 1 sides of retaining valve 3.Because supporting

part

40,40a and

fixture

41,41a are located on the base 4, supporting part is used for cooperating with

circular ring part

26,36 and assembling the lower half circle loop section of

base coupling part

10,34, and fixture is used for cooperating with

circular ring part

26,36 and assembling the upper semi-circle loop section of

base coupling part

10,34 and be fixed on supporting part by securing member BT, therefore corresponding

base coupling part

10,34 can be press-fitted on the fixed position and remain between supporting

part

40,40a and fixture 41, the 41a, and any slip can not occur.In addition, owing to can under the lax situation of securing member BT, make corresponding

base coupling part

10,34 be in temporary fixed state, therefore can make the outlet 32 of the inlet 5 of stopcock 2 and retaining valve 3 point to the connector of running water pipe respectively.

In addition, because flexible pipe 29 is located in the inlet 31 of the outlet 6 of stopcock 2 and retaining valve 3 any one, be embedded with an annular base portion 28 that can in inboard opening portion 27, slide with the watertightness state on the flexible pipe, thereby make flexible pipe to advance and retreat, therefore, can water meter M be arranged between stopcock 2 and the retaining valve 3 by the contraction of flexible pipe 29, and can not cause any obstruction, and only need flexible pipe 29 pulled out and the inlet 31 of outlet 6 that inlet M1 and the outlet M2 of water meter M is connected to stopcock 2 and retaining valve 3 on, just can easily water meter M be installed between stopcock 2 and the retaining valve 3.

In addition, because physical dimension is formed on the end side than the little polygon sidepiece 30 of the external diameter of annular base portion 26 from annular base portion 28 beginnings of flexible pipe 29 continuously, and the front end face 42 of supporting part 40 and fixture 41 one or both of, 43 are formed to such an extent that be complementary with polygon sidepiece 30, therefore, the inboard of the front end face 43 of annular base portion 28 meeting touch fasteners 41, throw off when flexible pipe 29 pulled into the limit to prevent the annular base portion, simultaneously, because flexible pipe 29 can not rotate around axis, therefore when being used for the adapter piece U that flexible pipe 29 and water meter M link together is tightened or unscrewing, do not need to utilize instrument such as pliers to keep flexible pipe 29 not rotate, so just can dispense the employing trouble that this instrument brought and move.

By forming supporting

part

40,40a, fix with the base coupling part 10 of the stopcock 2 that will link to each other or the base coupling part 34 of retaining valve 3 with flexible pipe 29, also be shaped to such an extent that be complementary, just can prevent that flexible pipe from throwing off or rotation with polygon sidepiece 30 by

front end face

42,43 with fixture 41,41a.Like this, throw off with the situation of rotating with base coupling part 10 that separately is provided for preventing linking to each other with flexible pipe 29 or the stationary installation on the base coupling part 34 and to compare, the length overall of base 4 can reduce, thereby can make device 1 more compact.

As previously mentioned, according to the present invention, the operation that is used to that operation and the attaching operation thereof of water meter M is installed and is used to remove water meter M can be implemented simply, thereby work efficiency can significantly improve.

Because stopcock 2 has such structure, promptly body 9 is connected to each other with rotatable state with base coupling part 10 and is in the same place, and therefore can easily control

lever

23,24 and the handle 24a that stretches out from body 9 be pointed to predetermined direction.

In addition, owing to connect 11 places, end at one, there is an annulus section 12 to be located at openend on interior week, in addition, also be provided with a conical section 13, this conical section is inwardly reduced diameter continuously from 12 beginnings of annulus section, an annular groove 16 is located in the circumference of annulus section 12, the C shape circlip 15 that diameter can enlarge and dwindle is placed in the groove, thereby can be absorbed in the groove, simultaneously, the seamed edge by at the open end side inclined cut slot opening end margin of above-mentioned connection end 11 has formed a sloping portion 17.In addition, conical section 20, annulus section 21 and annular groove 22 are located at another and are connected on the end 18, with be connected end 11 and be complementary, being arranged so that of the width of respective annular groove 22, outstanding internal diameter sidepiece 15a from the annular groove 22 that connects end 11 on the back-up ring 15 can promptly be applied on the C shape circlip 15 without any external force with such state with its inboard contact groove.Like this, body 9 and base coupling part 10 can be connected to each other by a contact action.In addition, after body 9 and base coupling part 10 is joined to one another, if attempt body 9 and base coupling part 10 disconnected from each other, then owing to there is not external force to apply along the direction that C shape circlip 15 is enlarged, therefore the connection between two

parts

9 and 10 can not separate, in addition, because the coupling arrangement between body 9 and the base coupling part 10 is not exposed to the outside of stopcock 2, therefore can in taking over operation, not cause back-up ring 15 to be pulled down by mistake.

In addition, according to previously described coupling arrangement, because the end 18 that is connected of the connection end 11 of body 9 and base coupling part 10 is to link to each other in the mode that overlaps inside each other, therefore with for example the situation that body 9 is connected on the base coupling part 10 being compared by collar nut, jointing clip etc., length overall is shortened, thereby device 1 can be made compact more.

Because

flange

45,45a rest on the base installed surface GL, crab-bolt jack 46,46a are projected into base installed surface GL top, and be used for screw jack 47 and the 47a that base is fixed on the base joint face GL being located at each

flange

45,45a by screw, therefore when mounting seat 4, can select following any method: utilize sand-cement slurry that

flange

45 and 45a are fixed on the base installed surface GL, perhaps utilize crab-bolt or screw that

flange

45 and 45a are fixed on the base installed surface GL.On the installation site of the various different conditions of base 4, base 4 all can be installed, thereby fitting operation can simplify, thereby has significant actual effect.

Description of drawings

Fig. 1 is the longitudinal sectional view of water meter connecting apparatus.

Fig. 2 is the vertical view of base.

Fig. 3 is the amplification view that the hatching line A-A in Fig. 1 is done.

Fig. 4 is the amplification view that the hatching line B-B in Fig. 1 is done.

Fig. 5 is the amplification view of stopcock.

Fig. 6 is the amplification view of the connection status between stopcock body and the base coupling part, wherein (a) is the view of the complete connection status between body and the base coupling part, (b) is body and the base coupling part view by along direction pulling separated from one another time the after connection is finished.

Embodiment

A preferred embodiment of the present invention is described with reference to the accompanying drawings.

Fig. 1 is the longitudinal sectional view according to water meter connecting apparatus 1 of the present invention.

Device 1 comprises a stopcock 2 and a retaining valve 3, they are connecting inlet M1 and the outlet M2 of water meter M respectively, and a base 4, it is used for corresponding stopcock 2 and retaining valve 3 along being connected axis arranged and separate with the interval greater than the length overall (inlet M1 and the distance that exports between the M2) of water meter M between the inlet M1 of water meter M and the outlet M2.

Stopcock 2 is turning formula ball valves that have auxiliary cock, wherein form like this from 5 the streams that enter the mouth to outlet 6, the direction quadrature of 5 the direction of promptly entering the mouth and outlet 6, thereby provide one with the inlet the 5 straight streams that are communicated with, stopcock body 9 forms like this, promptly the spherical valve body as auxiliary cock 7 and master cock 8 is arranged in the body 9 to begin inside order from entrance side continuously along this straight path, and body 9 is connected on the base coupling part 10 with the state that can rotate mutually, and the base coupling part then is communicated with outlet 6 with the form of elbow.

The connection end 11 of body 9 is provided with an annulus section 12 that is positioned at openend, and circular conical surface 13 forms continuously from corresponding annulus section 12 beginnings, and the diameter of circular conical surface reduces gradually towards the depth side.Undergauge annulus section 14 begins to form continuously from the smallest diameter portion office of corresponding conical section 13.

An annular groove 16 is located on the periphery of annulus section 12, the width of annular groove equates with the cross-sectional diameter of C shape circlip 15, so that the C shape circlip 15 that diameter can enlarge and dwindle can be absorbed in the groove, meanwhile, by at the seamed edge that connects the opening portion edge on the open end side cutting corresponding recesses 16 of end 11, formed a tilting section 17.

The connection end 18 of base coupling part 10 is provided with a undergauge annulus section 19, conical section 20, an annulus section 21 and an annular groove 22 on periphery, they correspond respectively to the appropriate section on the body connection end 11, have an O shape circle P who is assemblied in the O shape ring recess that is formed on its circumference on the undergauge annulus section 19.

The width of groove 22 is provided with like this, be that the internal diameter sidepiece 15a (semicircular half section portion of back-up ring 1 5) that stretches out from the groove 16 of the connection end 11 of body 9 on the back-up ring 15 can promptly not have external force to be applied on the C shape circlip 15 with such state with its inboard contact groove 22.

In addition, in the time of in the connection end 11 of the connection end 18 of base coupling part 10 being inserted body 9, the internal diameter sidepiece 15a that stretches out from the groove 16 of corresponding connection end 11 on the back-up ring 15 can slide gradually along the conical section 20 of the connection end 18 of base coupling part 10, thereby finally be extruded in the groove 16 of connection end 11 of body 9, the annulus section 21 that its guide ring 15 is extended out continuously from conical section 20 enlarges, thereby embed in the groove 16, and after

groove

16 and 22 aligns each other, back-up ring 15 will taper to original state, and not have external force to be applied on it.After this, back-up ring 15 is being held like this, and promptly the internal diameter sidepiece 15a of back-up ring 15 contacts groove 22 with its inboard, thereby guarantees

body

9 and 10 interlocks of base coupling part by back-up ring 15, makes the two to relatively rotate simultaneously.In addition, body and base coupling part will be communicated with the spherical valve body as auxiliary cock 7 and master cock 8, and freely setting

operation bar

23 and 24 stretch out direction, described control lever reaches outside the body 9, is used to open and close valve body.

The tilting section 17 that is located in the groove 16 of body 9 has following function.

That is to say, under body 9 and base coupling part 10 state connected to one another as previously mentioned, when body 9 and base coupling part 10 by along direction pulling separated from one another the time, shown in Fig. 6 (a), do not formed sloping portion 17 if having, then the corresponding corner angle part X on two

grooves

16 and 22 the opening portion edge is (owing to formed a sloping portion 17, therefore only show a corner angle part on the groove 16) can produce one with the power of back-up ring 15 along vertical reverse direction pushing, so that the enlarged-diameter of back-up ring 15, thereby back-up ring 15 is embedded in the groove 16 of body 19 fully, therefore can believe that this moment, body 9 can separate with base coupling part 10.Yet, if on groove 16, be provided with sloping portion 17, then since the reacting force on the external diameter sidepiece 15b of back-up ring 15 can press against on the sloping portion 17 along the direction of promptly pointing to groove 22 inboards of base coupling part 10 with the direction of clinoplane quadrature, shown in Fig. 6 (b), like this, the diameter of back-up ring 15 can not enlarge, therefore back-up ring 15 can keep being embedded in the groove 16, consequently, in case body 9 and base coupling part 10 are connected to each other and combine, just can prevent that body 9 and the base coupling part 10 in the stopcock 2 from taking apart each other.

Outlet 6 one sides of the base coupling part 10 of stopcock 2 (with the part of body 9 quadratures) have a side surface 25 that forms annular, and a circular ring part 26 is outstanding from this side surface.

A straight flexible pipe 29 is housed in the outlet 6 of base coupling part 10, is embedded with an annular base portion 28 on the flexible pipe, it can slide in inboard opening portion 27 with the state of watertightness, thereby makes flexible pipe to advance and retreat.

In flexible pipe 29, annular base portion 28 is provided with the O shape ring recess in recessed its circumferential surface, and an O shape circle P is housed respectively in each O shape ring recess.End side at annular base portion 28, one than the little polygon sidepiece 30 of the external diameter of annular base portion 28 (in illustrated example, join with annular base portion 28 from inboard) form continuously with predetermined length, a flange is located on the end openings end face partly of flexible pipe 29, has seal S on the flange.Meanwhile, adapter piece U for example collar nut or the like is located on the end of flexible pipe 29, in order to connect the inlet M1 of water meter M.

In addition, although in illustrated example, have only a handle 24a to be connected on the control lever 24 of master cock 8, also have a handle (not shown) to be connected aptly on the control lever 23 of auxiliary cock 7.

In addition, stopcock 2 can not be to have the ball valve of structure as previously mentioned, but the stopcock with other structures.In addition, the base coupling part 10 of elbow type has been described in front, yet it also can be the straight peen formula.Being connected

end

11 and 18 and also can having mutual inverted structure on body 9 and the base coupling part 10 that is to say that can adopt such structure, promptly insert in the connection end 18 of base coupling part 10 the connection end of body 9.

Retaining valve 3 is shaped as the turning formula, so that stream in its inlet 31 and the stream quadrature that exports in 32, and one be used for anti-sealing from the downstream upstream valve body 33 monoblock types of side adverse current be arranged on and 31 streams that are communicated with that enter the mouth, thereby form a base coupling part 34.In addition, a flange that has a seal S is located on the opening portion end surfaces of inlet 31, and adapter piece U for example collar nut or the like is placed on the inlet 31, in order to connect the outlet M2 of water meter M.

In addition, the base coupling part 34 that is located at inlet 31 1 sides of retaining valve 3 has a side surface 35 that forms annular, and a circular ring part 36 is outstanding from this side surface.

In addition, such retaining valve 3 has been described in the front, and it exports 32 1 sides is turning shapes, thereby crooked as elbow.Yet, also can adopt such retaining valve, promptly enter the mouth 31 and the stream of outlet between 32 form as the crow flies.

In addition, in the present embodiment, a flexible pipe 29 is located in the outlet 6 of stopcock 2.Yet flexible pipe 29 also can be connected on the inlet 31 of retaining valve 3.In this case, the outlet 6 of stopcock 2 is stretched out from circular ring part 26, and an adapter piece U is connected on its end.

Base 4 comprises a parallelepipedon middleware 37 long on the left and right sides direction,

clinoplane section

38 and 38a are inclined upwardly continuously from the left and right sides of corresponding middleware 37, and vertically

wall

39 and 39a uprightly stretch out from the uppermost component of

corresponding clinoplane section

38 and 38a.

Supporting

part

40 and 40a form among vertical wall 39 and the 39a with recessed form, be used for cooperating mutually with the

circular ring part

26 and 36 of stopcock 2 and retaining valve 3, thus the lower half circle loop section of assembling base coupling part 10 and 34.Roughly the fixture 41 of semi-arched and 41a are located on corresponding supporting part 40 and the 40a, and cooperate mutually with

circular ring part

26 and 36, with the upper semi-circle loop section of assembling

base coupling part

10 and 34, and be fixed on supporting part 40 and the 40a by a securing member BT who constitutes by Allen bolt.

Stopcock 2 and retaining valve 3 are set up like this, and promptly under stopcock 2 and retaining valve 3 were installed in state on supporting part 40 and the 40a, the inlet 31 of outlet 6 of stopcock 2 (flexible pipe 29) and retaining valve 3 was placed on the same axis.

In addition, TR thin rubber plate R is attached between supporting

part

40 and 40a and fixture 41 and the 41a and on the fitting surface between

fixture

41 and 41a and

base coupling part

10 and 34, and the TR thin rubber plate R effect of adhering to is the antirotation element as

base coupling part

10 and 34 in the complete fastening back of securing member BT.

In addition, a

front end face

42 and 43 one or both of that is formed on supporting part 40 and fixture 41 with polygon sidepiece 30 corresponding polygon mouths 44 is gone up (only being formed on the front end face 43 of fixture 41) in illustrated example, in order to the base coupling part 10 of the fixing stopcock 2 that is being connected with flexible pipe 29 or the base coupling part 34 (being used for fixing base coupling part 10 in illustrated example) of retaining valve 3.

Rest on the bottom left and right sides that flange 45 on the base installed surface GL that is made by concrete and 45a are located at base 4 respectively, simultaneously, be provided with crab-bolt jack 46 and the 46a that gives prominence to above base installed surface GL among corresponding flange 45 and the 45a, also be provided with

screw jack

47 and 47a, described jack is used for base 4 is fixed on base installed surface GL.

Next the operation of water meter connecting apparatus 1 is described.

When base 4 being fixed on the base installed surface GL, can select stationary installation according to mounting condition.

For example, under the situation of changing existing water meter M, because running water pipe is already installed, so the operating space is narrow, and so just inconvenience embeds new crab-bolt among the base installed surface GL.Therefore, can utilize boring bar tool corresponding to screw jack among flange 45 and the

45a

47 and 47a ... on the base installed surface, hole, the plug screw (not shown) that is used for screw is screwed into respective aperture is inserted in the hole, again the screw (not shown) is screwed among screw jack 47 and the 47a, so that base 4 is fixed on the base installed surface GL.

Under the situation of new clothes base 4, owing to be before running water pipe is installed, therefore the operating space is bigger than afore-mentioned, so just be easy to crab-bolt is embedded among the base installed surface GL, after crab-bolt is embedded among the base installed surface GL corresponding to the crab-bolt jack 46 among flange 45 and the 45a and 46a, the bolt (not shown) that stretches out from base installed surface GL will pass crab-bolt jack 46 and 46a and by nut screwing clamping, thereby base 4 is fixed on the base installed surface GL.

Except the method for aforementioned fixation base 4,

flange

45 and 45a also can be fixed on the base installed surface GL by sand-cement slurry.

After being fixed on base installed surface GL on in aforementioned three kinds of methods any base 4, with stopcock 2, when retaining valve 3 and water meter M are installed in the running water pipe (not shown), at first, the base coupling part 10 of stopcock 2 and retaining

valve

3 and 34 and the lower half circle loop section of

circular ring part

26 and 36 be placed in respectively on supporting part 40 and the 40a, and the upper semi-circle loop section fixture 41 of described collar portion and 41a cover, and securing member BF loosely is screwed into, so that these parts are temporarily fixed at such state, promptly

base coupling part

10 and 34 loosely is placed between supporting

part

40 and 40a and fixture 41 and the 41a.

Under temporary fixed state, owing to

circular ring part

26 and 36 loosely is placed between supporting

part

40 and 40a and fixture 41 and the 41a, so

base coupling part

10 and 34 can be rotated around their axis centering.Yet, their mobile restrictions that is subjected to respective

circular collar portion

26 and 36 on axis direction, and stopcock 2 and retaining valve 3 just so have been placed in the left and right sides of base 4.

In this state, by rotating stopcock 2 and retaining valve 3 respectively aptly, the inlet 5 of stopcock 2 and the outlet 32 of retaining valve 3 can be pointed to specific direction, are complementary with the corresponding connector with running water pipe, are temporarily fixed by the collar nut (not shown) that is used to connect again.

In addition, aspect stopcock 2, body 9 can rotate with respect to base coupling part 10, so that control lever 23,24 and handle 24a stretch to predetermined direction.After this, be used for stopcock 2 and retaining valve 3 are tightened fully with collar nut and the securing member BT that running water pipe couples together temporarily.

In addition, not under the situation of elbow type but straight peen formula at used stopcock 2 and retaining valve 3, for stopcock and retaining valve are connected on the running water pipe, need in the outlet 32 of the inlet 5 of stopcock 2 and retaining valve 3, be connected a bend pipe respectively.Like this, after these parts are temporary fixed, needing will temporary fixed stopcock 2 and retaining valve 3 rotation, so that be connected the bend pipe of outlet 32 1 sides of inlet 5 one sides of stopcock 2 and retaining valve 3 and the corresponding connector of running water pipe is complementary.

Next, water meter M is placed and is connected between the stopcock 2 and retaining valve 3 that is fixed on the base 4.

Aspect this attended operation, a water meter M is positioned between stopcock 2 and the retaining valve 3, and flexible pipe 29 pulled into suitable length, is tightened in the adapter piece U on the inlet 31 that will be located at flexible pipe 29 and retaining valve 3 on the inlet M1 and M2 of water meter M.

Because annular base portion 28 is formed greater than the physical dimension of the polygon sidepiece 30 on the flexible pipe 29 of having pulled out, therefore annular base portion 28 can touch the inboard (side that polygon mouth 44 is surrounded) of the front end face 43 of fixture 41, throws off to prevent the annular base portion.

In the time of in being screwed into adapter piece U, because the

base coupling part

10 and 34 of stopcock 2 and retaining valve 3 is placed between supporting

part

40 and 40a and fixture 41 and the 41a, so they can not rotate.Conform to owing to polygon sidepiece 30 is made with the front end face 43 of fixture 41 again, so flexible pipe 29 can not rotate.Therefore, only need utilize spanner or analog adapter piece U can be tightened, and not need to utilize pliers or similar tool to keep flexible pipe 29 and retaining valve 3 not to rotate.

Claims

1. water meter connecting apparatus, it comprises: a stopcock and a retaining valve, they are connecting the entrance and exit of a water meter respectively; And a base, it is used for stopcock and retaining valve are placed in connection axis between the entrance and exit of water meter with predetermined space, and this is at interval greater than the length overall of above-mentioned water meter; It is characterized in that: have the side surface that forms annular on the respective seat coupling part of stopcock outlet side and retaining valve entrance side, and have outstanding circular ring part; A supporting part and a fixture are located on the above-mentioned base, supporting part is used for assembling the lower half circle loop section of base coupling part with the circular ring partial cooperative, and fixture is used for assembling the upper semi-circle loop section of base coupling part and being fixed on supporting part by securing member with the circular ring partial cooperative; Flexible pipe is located in the inlet of the outlet of above-mentioned stopcock and above-mentioned retaining valve any one, be embedded with an annular base portion on the flexible pipe, this base portion can slide in an inboard opening portion with the watertightness state, thereby makes flexible pipe to advance and retreat; Polygon sidepiece littler than the external diameter of above-mentioned annular base portion is formed on the end side of above-mentioned annular base portion of above-mentioned flexible pipe continuously; The front end face of above-mentioned supporting part and fixture one or both of is formed to such an extent that be complementary with the polygon sidepiece.

2. water meter connecting apparatus as claimed in claim 1, it is characterized in that, above-mentioned stopcock is formed like this, be that its body and base coupling part rotatably link together each other, have the conical section on week in the annulus section on week and are located in open end is located on one in the connection end of the two, this conical section is configured to begin inwardly to reduce continuously diameter from above-mentioned annulus section; An annular groove is located in the circumference of annulus section, and the C shape circlip that can enlarge and dwindle is placed in the groove, thereby can be absorbed in the groove; Simultaneously, the corner angle part on the edge of opening of the above-mentioned annular groove of open end side inclined cut by connecting the end at this has formed a sloping portion; Another connects end and has corresponding with last connection end a conical section on the periphery, an annulus section and annular groove of being located at, being arranged so that of the width of above-mentioned annular groove, outstanding internal diameter sidepiece from the annular groove of last link portion on the back-up ring can with such state with side contacts in it after a described groove that connects the end, promptly be applied on the C shape circlip without any external force.

3. water meter connecting apparatus as claimed in claim 1 or 2, it is characterized in that, base is provided with the flange that is used to rest on the base installed surface, and the crab-bolt jack is given prominence on above-mentioned base installed surface, is used for the land jack that base is tightened on the base installed surface is located at above-mentioned flange.