CN203893891U - Bottom inner box structure of dual-box type water meter - Google Patents

Abstract

The utility model belongs to the technical field of water meters, and particularly relates to a bottom inner box structure of a dual-box type water meter. The bottom inner box structure comprises an upper component, a central component and a lower component serving as the bottom of a bottom inner box. The central component is provided with inflow nozzles, outlets and nozzle forming bodies, and the upper end and the lower end of the central component are respectively connected with the upper component and the lower component. Compared with the prior art, the bottom inner box structure of the dual-box type water meter has the advantages that the bottom inner box structure of the dual-box type water is arranged to be split, so that all the components (namely the upper component, the central component and the lower component) are simple to manufacture; furthermore, the inflow nozzles can be subjected to precision machining with high precision, so that difference of measuring precision can be eliminated; besides, when the components are manufactured, multiple components can be formed via one die at one time, so that manufacturing efficiency is improved; the components can be disassembled, thus the bottom inner box structure can be recycled and disassembled for reutilization.

Description

The bottom inner box structure of a kind of pair of box type water meter

Technical field

The utility model belongs to water meter technical field, particularly the bottom inner box structure of a kind of pair of box type water meter.

Background technology

Fig. 1 is the basic structure of two box tap water meters in prior art, wherein, 1 is the mobile under casing of tap water, and 2 is filtrator, and 3 is case in top, 4 is case in bottom, 5 is the impeller arranging in case in bottom, and 6 is turning axle, the 7 gear mechanism portions for transmission rotation, 8 is the instruction unit of digit wheel etc., 9 demonstrations that are watch crystal.

Tap water flows into as shown by arrow F, carries out as shown by arrow G, and the flow nozzle 42 ' that casing 41 belows of case 4 arrange in bottom enters case in bottom, impels impeller 5 to rotate, then is flowed out outside case, as shown by arrow H by top escape hole 43 '.

In the bottom of box type water meter of the prior art, as in Figure 2-4, its casing 41 by one forms the structure of case 4, and multiple flow nozzles 42 ' are set below casing 41, and top arranges multiple escape holes 43 '.In this bottom, case 4 is because entirety is integral type structure, therefore complex structure, and it is more difficult to make, and the Precision Machining difficulty of flow nozzle 42 ' cannot avoid the precision of flow nozzle 42 ' to have uneven shortcoming.

Summary of the invention

The purpose of this utility model is: for the deficiencies in the prior art, and provide the bottom inner box structure of two box type water meters, it can be to flow nozzle with in addition Precision Machining of good precision, thereby can eliminate the uneven of measuring accuracy.

To achieve these goals, the utility model adopts following technical scheme:

The bottom inner box structure of a kind of pair of box type water meter, comprise upper component, central member and the lower member as the bottom of case in bottom, in described central member, be provided with flow nozzle, escape hole and nozzle forming body, the top and bottom of described central member are connected with described upper component and described lower member respectively.

One as the bottom inner box structure of the two box type water meters of the utility model is improved, and the bottom surface of the framework of described upper component is provided with first tab that can be pressed into described central member and become the lid of described escape hole.

One as the bottom inner box structure of the two box type water meters of the utility model is improved, and the wall portion of described escape hole is provided with the first recess, and described the first tab is pressed into described the first recess, and described upper component is connected with described central member.

One as the bottom inner box structure of the two box type water meters of the utility model is improved, and is provided with the second recess on described nozzle forming body.

One as the bottom inner box structure of the two box type water meters of the utility model is improved, and the end face of the framework of described lower member is provided with second tab that can be pressed into described the second recess.

One as the bottom inner box structure of the two box type water meters of the utility model is improved, and is also provided with latch insertion section in described central member, is provided with the latch mating with described latch insertion section in described lower member.

One as the bottom inner box structure of the two box type water meters of the utility model is improved, and in the framework of described lower member, is provided with rib.

One as the bottom inner box structure of the two box type water meters of the utility model is improved, and the top of described upper component arranges porose.

With respect to prior art, the utility model is set to split type by the bottom inner box structure of two box type water meters, each ingredient (upper component, central member and lower member) is made easily simple, and can be to flow nozzle with good precision Precision Machining in addition, thereby can eliminate the uneven of measuring accuracy.And manufacturing when each ingredient, can once form with a mould multiplely, manufacture efficiency thereby improve.And because each several part can be decomposed, therefore can reclaim decomposition and be recycled.

Brief description of the drawings

Below in conjunction with specification drawings and specific embodiments, the utility model and useful technique effect thereof are elaborated, wherein:

Fig. 1 is the basic block diagram of two box tap water meters.

Fig. 2 is the sectional view of the interior case in bottom in prior art.

Fig. 3 is the A-A sectional view of Fig. 2.

Fig. 4 is the B-B sectional view of Fig. 2.

Fig. 5 is by the exploded view of case in the utility model bottom.

Fig. 6 is the stereographic map of upper component.

Fig. 7 is the top view that Fig. 6 is watched from D direction.

Fig. 8 is the A-A sectional view of Fig. 7.

Fig. 9 is the B-B sectional view of Fig. 7.

Figure 10 is the stereographic map of central member.

Figure 11 is the top view that Figure 10 is watched from D direction.

Figure 12 is the backplan that Figure 10 is watched from R direction.

Figure 13 is the A-A sectional view of Figure 11.

Figure 14 is the B-B sectional view of Figure 11.

Figure 15 is the C-C sectional view of Figure 12.

Figure 16 is the stereographic map of lower member.

Figure 17 is the top view of Figure 16.

Figure 18 is the B-B sectional view of Figure 17.

Embodiment

Below in conjunction with embodiment and Figure of description, the utility model is described in further detail, but embodiment of the present utility model is not limited to this.

As shown in Figure 5, in bottom, case 20 comprises central member 40, upper component 30 and the lower member 50 as the bottom of case in bottom 20, in central member 40, be provided with flow nozzle 42, escape hole 43 and nozzle forming body 44, the top and bottom of central member 40 are connected with upper component 30 and lower member 50 respectively.

The bottom surface of the framework 31 of upper component 30 is provided with the first tab 32, and this first tab 32 is pressed into central member 40 becomes the lid of escape hole 43.The end face of the framework 51 of lower member 50 is provided with the second tab 52, and this second tab 52 is pressed into the second recess 45 set on the nozzle forming body 44 of central member 40, and this lower member 50 becomes the bottom of case 20 in bottom.

Fig. 6 changes upper component 30 into shown with Fig. 5 different directions stereographic map, Fig. 7 is the top view that Fig. 6 is watched from D direction, Fig. 8 is the A-A sectional view of Fig. 7, Fig. 9 is the B-B sectional view of Fig. 7,31 is the framework of upper component 30,32 is the first tab of aforementioned the first recess 45 that is pressed into central member 40 end faces, and the left side of Fig. 8 is for above, and right side is to be contacted with below central member 40.

Figure 10 is the stereographic map to be shown with the equidirectional of upper component 30 shown in Fig. 6 by central member 40, Figure 11 is the top view that Figure 10 is watched from D direction, Figure 12 is the backplan that Figure 10 is watched from R direction, Figure 13 is the A-A sectional view of Figure 11, Figure 14 is the B-B cut-open view of Figure 11, the C-C cut-open view that Figure 15 is Figure 12.42 is flow nozzle, and 43 is escape hole, and 44 for forming the organizators of flow nozzle, and 45 for being located at the second recess on the organizator of flow nozzle, and 46 be latch insertion section, and 47 be the wall portion around escape hole 43, and 48 is the first recess of being located at wall portion 47.

Central member 40 shown in Figure 11 is contacted with above below the upper component 30 on Fig. 8 right side, and the first tab 32 of upper component 30 is pressed into the first recess 48 in central member 40 shown in Figure 11 above, and upper component 30 and central member 40 are interosculated.

Figure 16 is the stereographic map of lower member 59, and Figure 17 is its top view, the B-B cut-open view that Figure 18 is Figure 17, and wherein 51 is the framework of lower member 50, and 52 is the second tab, and 53 is the latch mating with latch insertion section 46, and 54 is the rib of framework 51.

This lower member 50 is relative below with central member 40 shown in Figure 12 above, the second tab 52 is pressed into the second recess 45 in central member 40, latch 53 is pressed into the latch insertion section 46 in central member 40, can makes lower member 50 be incorporated into central member 40.

When lower member 50 can form the bottom of case 20 in bottom, 54, rib is to impel the water of case 20 in flow nozzle 42 enters bottom can collide equably impeller, makes water form the function of the flows resistance of sinuous flow.53 of latches adopt the mode of adjustable flows resistance, decide position when lower member 50 is incorporated into central member 40.

As shown in Fig. 7 and 9, arranging above of upper component 30 is porose 49, when case is loaded onto the interior case 20 in bottom at the top up in, is snapped in the set protuberance of case in top and carries out both location.Whereby, in the time of assembling table, can be assemblied in same direction.The flows resistance causing for the rib of lower member 50 can arrange rib to form top resistance in top below case.

The announcement of book and instruction according to the above description, the utility model those skilled in the art can also change and revise above-mentioned embodiment.Therefore, the utility model is not limited to embodiment disclosed and described above, also should fall in the protection domain of claim of the present utility model modifications and changes more of the present utility model.In addition,, although used some specific terms in this instructions, these terms just for convenience of description, do not form any restriction to the utility model.

Claims (8)

1. the bottom inner box structure of two box type water meters, it is characterized in that: comprise upper component, central member and the lower member as the bottom of case in bottom, in described central member, be provided with flow nozzle, escape hole and nozzle forming body, the top and bottom of described central member are connected with described upper component and described lower member respectively.

2. the bottom inner box structure of according to claim 1 pair of box type water meter, is characterized in that: the bottom surface of the framework of described upper component is provided with first tab that can be pressed into described central member and become the lid of described escape hole.

3. the bottom inner box structure of according to claim 2 pair of box type water meter, is characterized in that: the wall portion of described escape hole is provided with the first recess, and described the first tab is pressed into described the first recess, and described upper component is connected with described central member.

4. the bottom inner box structure of according to claim 1 pair of box type water meter, is characterized in that: on described nozzle forming body, be provided with the second recess.

5. the bottom inner box structure of according to claim 4 pair of box type water meter, is characterized in that: the end face of the framework of described lower member is provided with second tab that can be pressed into described the second recess.

6. the bottom inner box structure of according to claim 5 pair of box type water meter, is characterized in that: in described central member, be also provided with latch insertion section, be provided with the latch mating with described latch insertion section in described lower member.

7. the bottom inner box structure of according to claim 5 pair of box type water meter, is characterized in that: in the framework of described lower member, be provided with rib.

8. the bottom inner box structure of according to claim 1 pair of box type water meter, is characterized in that: the top of described upper component arranges porose.