CN214951619U - Fast mounting single flow water meter - Google Patents
Fast mounting single flow water meter Download PDFInfo
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- CN214951619U CN214951619U CN202121654422.2U CN202121654422U CN214951619U CN 214951619 U CN214951619 U CN 214951619U CN 202121654422 U CN202121654422 U CN 202121654422U CN 214951619 U CN214951619 U CN 214951619U
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Abstract
A fast-mounting single-flow water meter comprises a first shell and a second shell positioned on the first shell; the circumferential side wall of one end, close to the second shell, of the first shell is provided with an annular flange in a protruding mode, and the circumferential side wall of one end, close to the first shell, of the second shell is provided with a plurality of clamping lugs at intervals in a protruding mode; a snap ring is sleeved on the annular flange and the plurality of clamping convex blocks. So realize quick installation and dismantlement, improve work efficiency.
Description
Technical Field
The utility model relates to a water gauge equipment technical field, especially a quick installation single current water gauge.
Background
The existing water meter has two parts, one is a bottom runner part, the other is a top induction part, the runner part is provided with an impeller, and the induction part is provided with an induction device for detecting the rotation of the impeller. The connection of runner part and response part is usually connected through a plurality of screws, needs to operate through specialized tool, and so installation and dismantlement are comparatively troublesome.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a realize quick installation and dismantlement, improve work efficiency's quick installation single current water gauge to solve above-mentioned problem.
A fast-mounting single-flow water meter comprises a first shell and a second shell positioned on the first shell; the circumferential side wall of one end, close to the second shell, of the first shell is provided with an annular flange in a protruding mode, and the circumferential side wall of one end, close to the first shell, of the second shell is provided with a plurality of clamping lugs at intervals in a protruding mode; a snap ring is sleeved on the annular flange and the plurality of clamping convex blocks.
Furthermore, a plurality of first abutting blocks are arranged on the inner side of the clamping ring close to the bottom end of the first shell in a protruding mode, and a plurality of second abutting blocks are arranged on the inner side of the clamping ring close to the top end of the second shell in a protruding mode; the first abutting block is positioned below the annular flange and abutted against the annular flange, and the second abutting block is positioned above the third clamping convex block and abutted against the third clamping convex block; the connecting holes are formed in the two ends of the clamping ring, and a pin shaft penetrates through the connecting holes in the two ends of the clamping ring.
Furthermore, a partition plate is arranged on one side, close to the second shell, in the first shell, and a sealing ring is arranged between the partition plate and the first shell.
Furthermore, the bottom of one end of the snap ring is provided with a first limiting bump in a protruding manner, and the circumferential side wall of the first shell is provided with a second limiting bump in a protruding manner.
Furthermore, the second shell comprises a housing far away from the first shell and an isolation seat close to the first shell, and the housing is clamped with the isolation seat.
Furthermore, at least one window is arranged on the housing, and a transparent window is arranged at the window.
Furthermore, the inner side of the circumferential side wall of the housing is also concavely provided with a guide groove, the outer side of the isolation seat is convexly provided with a guide strip, and the guide strip is positioned in the guide groove.
Compared with the prior art, the utility model discloses a quick installation single current water gauge includes first casing and is located the second casing on first casing; the circumferential side wall of one end, close to the second shell, of the first shell is provided with an annular flange in a protruding mode, and the circumferential side wall of one end, close to the first shell, of the second shell is provided with a plurality of clamping lugs at intervals in a protruding mode; a snap ring is sleeved on the annular flange and the plurality of clamping convex blocks. So realize quick installation and dismantlement, improve work efficiency.
Drawings
Embodiments of the present invention are described below with reference to the accompanying drawings, in which:
fig. 1 is the utility model provides a quick installation single current water gauge's stereogram.
Figure 2 is the utility model provides a side section view of quick installation single current water gauge.
Fig. 3 is the utility model provides a local schematic diagram of quick installation single current water gauge.
Fig. 4 is a partial schematic view of fig. 2.
Fig. 5 is a perspective view of the housing of fig. 2.
Fig. 6 is the utility model provides a quick installation single current water gauge removes the stereogram behind the housing.
Fig. 7 is a perspective view of another viewing angle of the single flow water meter of the present invention.
Fig. 8 is a perspective view of the snap ring of fig. 7.
Detailed Description
The following describes in further detail specific embodiments of the present invention based on the drawings. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.
Referring to fig. 1 to 3, the present invention provides a quick-mounting single flow water meter, which includes a first housing 10, a second housing 20 disposed on the first housing 10, an impeller 30 rotatably disposed in the first housing 10, a magnetic block 40 disposed on the impeller 30, a main circuit board 50 disposed in the second housing 20, and two tunnel magnetoresistive sensors (TMR)60 disposed at a middle eccentric position of one side of the main circuit board 50 facing the first housing 10.
The first casing 10 has a flow chamber therein, and both sides of the first casing 10 are respectively provided with a water inlet 11 and a water outlet 12.
The two tunnel magnetoresistive sensors 60 are a first tunnel magnetoresistive sensor 61 and a second tunnel magnetoresistive sensor 62, respectively, and the first tunnel magnetoresistive sensor 61 is perpendicular to the second tunnel magnetoresistive sensor 62, so that the phases of the sensing signals of the first tunnel magnetoresistive sensor 61 and the second tunnel magnetoresistive sensor 62 are different by 90 degrees.
A rotating shaft 31 is axially protruded from a middle portion of the impeller 30, and a bearing for rotatably supporting the rotating shaft 31 is provided in the first housing 10. The number of the magnetic blocks 40 is two, and the two magnetic blocks 40 are arranged at two ends of the outer side of the rotating shaft 31 along the radial direction.
The second housing 20 includes a cover 21 remote from the first housing 10 and an isolation seat 22 adjacent to the first housing 10.
The middle part of the isolation seat 22 is provided with a sensing groove 221 protruding towards the impeller 30, and the first tunnel magnetoresistive sensor 61 and the second tunnel magnetoresistive sensor 62 are both located in the sensing groove 221.
Furthermore, the isolation seat 22 is provided with a sensing circuit board 51 connected to the main circuit board 50, and the first tunnel magnetoresistive sensor 61 and the second tunnel magnetoresistive sensor 62 are both arranged on a side of the sensing circuit board 51 facing the first casing 10.
The main circuit board 50 is provided with a control chip 70, a status indicator lamp 81, a digital display tube 82 and a battery unit 83. The first tunnel magnetoresistive sensor 61, the second tunnel magnetoresistive sensor 62, the status indicator lamp 81 and the digital display tube 82 are all connected to the control chip 70. The battery unit 83 is used to supply power to the respective electronic components.
The first and second tunnel magnetoresistive sensors 61 and 62 emit a high level signal when sensing the magnetic block 40, and emit a low level signal when not sensing the magnetic block 40. When the phase of the first sensing signal of the first tunnel magnetoresistive sensor 61 leads the phase of the second sensing signal of the second tunnel magnetoresistive sensor 62, it indicates that the impeller 30 is rotating forward; when the phase of the first sensing signal of the first tunnel magnetoresistive sensor 61 lags behind the second sensing signal of the second tunnel magnetoresistive sensor 62, the impeller 30 is described as being reversed.
After receiving the high level signals of the first tunnel magnetoresistive sensor 61 and the second tunnel magnetoresistive sensor 62 twice, the control chip 70 performs a count indicating that the impeller 30 has rotated one turn.
The control chip 70 determines the rotation direction of the impeller 30 according to the phases of the first sensing signal and the second sensing signal, counts positively if the impeller rotates positively, counts negatively if the impeller rotates negatively, and accumulates the positive count and the negative count within a certain time to obtain an accumulated value, wherein the product of the accumulated value and the predetermined single flow rate is the flow rate measurement result. Therefore, the measurement result is more accurate and more practical.
When the control chip 70 judges that the impeller 30 rotates forward, the control state indicator lamp 81 lights up a green lamp; when the impeller 30 is judged to be reversely rotated, the control state indicator lamp 81 is turned on to display a red light. The digital display tube 82 displays the measurement result calculated by the control chip 70.
Referring to fig. 4 to 6, a first clamping ring 211 is protrudingly disposed at a position of the housing 21 close to the edge and facing one side of the isolation seat 22, a first clamping groove 212 is formed between the first clamping ring 211 and the circumferential side wall of the housing 21, a second clamping groove is concavely disposed at the inner side of the bottom of the circumferential side wall of the housing 21, and a first clamping protrusion 213 is protrudingly disposed at the inner side of the bottom of the circumferential side wall of the housing 21 and facing one side of the second clamping groove far from the first clamping ring 211. The first sealing ring 23 is disposed in the first engaging groove 212.
The circumferential edge of the isolation seat 22 is provided with a second clamping ring 222 protruding towards the housing 21, and the circumferential edge of the isolation seat 22 is further provided with a second clamping protrusion 223 protruding outside the second clamping ring 222.
The second snap ring 222 is located in the first snap groove 212, and the first sealing ring 23 is located between the second snap ring 222 and the housing 21.
The second clamping protrusion 223 is located in the second clamping groove, and the first clamping protrusion 213 and one side of the second clamping protrusion 223 far away from the second clamping ring 222 are abutted.
This achieves a primary seal between the cover 21 and the spacer 22.
And then, glue is poured into the second shell 20 to form a glue sealing layer 24, so that secondary sealing between the cover 21 and the isolation seat 22 is realized.
The housing 21 has a first window corresponding to the status indicator 81, a second window corresponding to the digital display tube 82, and transparent windows 215 are disposed at the first window and the second window. The transparent window 215 is a transparent PC window, the light transmittance is more than 90%, and the transparent window 215 and the housing 21 are integrally formed by injection molding, so that the sealing performance is good.
The inner side of the circumferential side wall of the housing 21 is further provided with a guide groove 214 along the axial direction in a recessed manner, the outer side of the second snap ring 222 of the isolation seat 22 is provided with a guide strip 224 along the axial direction in a protruding manner, and the guide strip 224 is positioned in the guide groove 214, so that the functions of guiding, positioning and fool-proofing are achieved.
A partition plate 101 is disposed in the first casing 10 at a side of the impeller 30 close to the second casing 20, and a second sealing ring 102 is disposed between the partition plate 101 and the first casing 10, so as to seal the first casing 10 and prevent water in the flow chamber from overflowing.
An annular flange 13 is protrudingly arranged on the circumferential side wall of one end of the first shell 10 close to the second shell 20, and a plurality of third snap lugs 216 are protrudingly arranged on the circumferential side wall of one end of the cover shell 21 close to the first shell 10 at intervals.
A snap ring 90 is sleeved on the annular flange 13 and the third snap bumps 216 to fix the first casing 10 and the second casing 20.
The inner side of the snap ring 90 near the bottom end of the first casing 10 is provided with a plurality of first abutting blocks 91 in a protruding manner, the inner side of the snap ring near the top end of the second casing 20 is provided with a plurality of second abutting blocks 92 in a protruding manner, and both ends of the snap ring 90 are provided with connecting holes 93.
During the installation, earlier locate the outside of annular flange 13 with snap ring 90 cover for first butt joint piece 91 is located the below of annular flange 13 and with annular flange 13 butt, later rotates snap ring 90, makes second butt joint piece 92 be located the top of third joint lug 216 and with third joint lug 216 butt, and after the connecting hole 93 at snap ring 90 both ends aligns, the round pin axle passes the connecting hole 93 at snap ring 90 both ends, realizes the locking.
The bottom of one end of the snap ring 90 is further provided with a first limiting bump 94 in a protruding manner, the circumferential side wall of the first housing 10 is provided with a second limiting bump 14 in a protruding manner, and the snap ring 90, the second housing 20, the main circuit board 50 inside the second housing, and the tunnel magnetoresistive sensor 60 can rotate together by a predetermined angle, which is smaller than 360 degrees, so that the rotation limitation within 360 degrees is realized.
Compared with the prior art, the utility model discloses a quick installation single current water gauge includes first casing and is located the second casing on first casing; the circumferential side wall of one end, close to the second shell, of the first shell is provided with an annular flange in a protruding mode, and the circumferential side wall of one end, close to the first shell, of the second shell is provided with a plurality of clamping lugs at intervals in a protruding mode; a snap ring is sleeved on the annular flange and the plurality of clamping convex blocks. So realize quick installation and dismantlement, improve work efficiency.
The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention, and any modification, equivalent replacement or improvement within the spirit of the present invention is encompassed by the claims of the present invention.
Claims (7)
1. The utility model provides a quick installation single current water gauge which characterized in that: comprises a first shell and a second shell positioned on the first shell; the circumferential side wall of one end, close to the second shell, of the first shell is provided with an annular flange in a protruding mode, and the circumferential side wall of one end, close to the first shell, of the second shell is provided with a plurality of clamping lugs at intervals in a protruding mode; a snap ring is sleeved on the annular flange and the plurality of clamping convex blocks.
2. A quick install single flow water meter as set forth in claim 1, wherein: a plurality of first abutting blocks are arranged on the inner side of the clamping ring close to the bottom end of the first shell in a protruding mode, and a plurality of second abutting blocks are arranged on the inner side of the clamping ring close to the top end of the second shell in a protruding mode; the first abutting block is positioned below the annular flange and abutted against the annular flange, and the second abutting block is positioned above the third clamping convex block and abutted against the third clamping convex block; the connecting holes are formed in the two ends of the clamping ring, and a pin shaft penetrates through the connecting holes in the two ends of the clamping ring.
3. A quick install single flow water meter as set forth in claim 1, wherein: a partition plate is arranged on one side, close to the second shell, in the first shell, and a sealing ring is arranged between the partition plate and the first shell.
4. A quick install single flow water meter as set forth in claim 1, wherein: the bottom of the one end of snap ring is outstanding to be provided with first spacing lug, and the circumference lateral wall of first casing is gone up the outstanding second spacing lug that is provided with.
5. A quick install single flow water meter as set forth in claim 1, wherein: the second shell comprises a housing far away from the first shell and an isolation seat close to the first shell, and the housing is clamped with the isolation seat.
6. A quick install single flow water meter as set forth in claim 5, wherein: at least one window is arranged on the housing, and a transparent window is arranged at the window.
7. A quick install single flow water meter as set forth in claim 5, wherein: the inner side of the circumferential side wall of the housing is also concavely provided with a guide groove, the outer side of the isolation seat is convexly provided with a guide strip, and the guide strip is positioned in the guide groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121654422.2U CN214951619U (en) | 2021-07-20 | 2021-07-20 | Fast mounting single flow water meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121654422.2U CN214951619U (en) | 2021-07-20 | 2021-07-20 | Fast mounting single flow water meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214951619U true CN214951619U (en) | 2021-11-30 |
Family
ID=79072329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121654422.2U Active CN214951619U (en) | 2021-07-20 | 2021-07-20 | Fast mounting single flow water meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214951619U (en) |
-
2021
- 2021-07-20 CN CN202121654422.2U patent/CN214951619U/en active Active
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