CN214010492U - Water meter - Google Patents
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- CN214010492U CN214010492U CN202120302763.7U CN202120302763U CN214010492U CN 214010492 U CN214010492 U CN 214010492U CN 202120302763 U CN202120302763 U CN 202120302763U CN 214010492 U CN214010492 U CN 214010492U
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Abstract
The application relates to a water meter, including the casing, still including setting up drive assembly and the drive assembly in the casing, drive assembly include the driving gear and with driving gear meshing's accelerating gear, driving gear and the coaxial rotation of drive assembly, it waits to detect the piece to be provided with on the accelerating gear, it with the coaxial rotation of accelerating gear to detect the piece, the diameter of driving gear is greater than the diameter of accelerating gear. This application has under minimum flow condition, carries out the timing of water gauge and the effect of examination fast.
Description
Technical Field
The application relates to the field of instruments and meters, in particular to a water meter.
Background
The water meter is an instrument for trade settlement, is listed as a measuring instrument for national key supervision, and is accurate or not directly related to the vital interests of the majority of users. Before leaving the factory, the water meter must be calibrated and verified, and can be put into use after being qualified.
At present, a common water meter includes a driving assembly and a quincunx needle coaxially rotating with the driving assembly, and the driving assembly rotates under the impact of water flow, so as to drive the quincunx needle to rotate. The water meter is calibrated by collecting the number of rotating teeth of the plum-blossom needle in the calibration process, calculating the volume of water flowing through the water meter, measuring the error, and comparing with the standard value of water flow to judge whether the water meter is qualified.
With respect to the related art among the above, the applicant believes that the following disadvantages exist: when the water flow of the water meter is small, the plum-blossom needle rotates slowly, and the time required by adjustment and verification is long.
SUMMERY OF THE UTILITY MODEL
In order under minimum flow condition, can carry out the timing and the examination of water gauge fast, this application provides a water gauge.
The application provides a water gauge adopts following technical scheme:
the utility model provides a water meter, includes the casing, still includes drive assembly and the drive assembly who sets up in the casing, drive assembly includes the driving gear and with driving gear meshing's accelerating gear, the driving gear rotates with drive assembly is coaxial, it waits to detect the piece to be provided with on the accelerating gear, it rotates with accelerating gear is coaxial to detect the piece, the diameter of driving gear is greater than accelerating gear's diameter.
By adopting the technical scheme: under the drive of rivers, drive assembly drives the driving gear and rotates. Under the condition of minimum flow, because the diameter of driving gear is greater than the acceleration gear, when the driving gear rotates less than a round, the acceleration gear has rotated a plurality of circles, and then detects the piece through the detection, and then calculates the water volume that flows through this water gauge. At the moment, the adjustment and the verification can be carried out without waiting for the driving gear to rotate for a circle, so that the rapid adjustment and the verification of the water meter can be realized, and the efficiency is improved.
Preferably, the driving gear and the accelerating gear are engaged by an external gear.
By adopting the technical scheme: the driving gear and the accelerating gear are meshed through the external gear, the structure is simple, the production is simplified, and the processing and assembling efficiency of the water meter is improved.
Preferably, the bottom end of the driving gear is connected with a base, the base and the driving assembly rotate coaxially, and the driving gear is meshed with the accelerating gear through an inner gear.
By adopting the technical scheme: the driving gear rotates together with the driving of the base and is meshed with the accelerating gear through the inner gear, and the accelerating gear is arranged on the inner side of the driving gear at the moment, so that the mounting space is saved.
Preferably, the transmission ratio of the driving gear to the accelerating gear is within the range of 1:5-1: 40.
By adopting the technical scheme: the transmission ratio of the driving gear to the accelerating gear is within the interval of 1:5-1:40, and when the driving gear rotates for one fifth, the accelerating gear rotates for at least one circle, so that the accelerating effect of the accelerating gear can be realized.
Preferably, a rotating shaft penetrates through the middle of the accelerating gear, and the piece to be detected is detachably connected to the rotating shaft.
By adopting the technical scheme: wait to detect a can dismantle with the axis of rotation and be connected, be convenient for adjust the biography and wait to detect the position of piece, simultaneously can be convenient treat that the piece that detects dismantles to this is treated the piece that detects and is maintained, is favorable to improving the precision of water gauge examination.
Preferably, still include the determine module, the determine module sets up on the water gauge, is used for detecting the number of turns of waiting to detect the piece.
By adopting the technical scheme: the detection assembly comprises a sensor and a chip, different calibration coefficients can be set at the minimum flow, the common flow and the maximum flow respectively, the accuracy error of the water meter in the full flow range is guaranteed, the flow ratio of the water meter is effectively improved, and the application range is wider.
Preferably, the driving assembly comprises an impeller, a gear shaft penetrates through the middle of the impeller, and the driving gear is arranged at one end, far away from the impeller, of the gear shaft.
By adopting the technical scheme: the driving gear sets up in the one end of keeping away from the impeller, can reduce rivers and to the driving gear pivoted direct influence, and then improve the degree of accuracy of water gauge examination.
Preferably, the gear shaft coincides with a central axis of the housing.
By adopting the technical scheme: the gear shaft coincides with the center pin of casing, and the impeller distributes in gear shaft week side, when rivers got into the water gauge in, enables impeller pivoted more even to this drives the driving gear steady rotation, and then improves the degree of accuracy that detects.
In summary, the present application includes at least one of the following beneficial technical effects:
1. under the drive of rivers, drive assembly drives the driving gear and rotates. Under the condition of minimum flow, because the diameter of driving gear is greater than the acceleration gear, when the driving gear rotates less than a round, the acceleration gear has rotated a plurality of circles, and then detects the piece through the detection, and then calculates the water volume that flows through this water gauge. At the moment, the adjustment and the verification can be carried out without waiting for the driving gear to rotate for a circle, so that the rapid adjustment and the verification of the water meter can be realized, and the efficiency is improved;
2. the driving gear is meshed with the accelerating gear through the external gear, so that the structure is simple, the production is simplified, and the processing and assembling efficiency of the water meter is improved;
3. the transmission ratio of the driving gear to the accelerating gear is within the interval of 1:5-1:40, and when the driving gear rotates for one fifth, the accelerating gear rotates for at least one circle, so that the accelerating effect of the accelerating gear can be realized.
Drawings
FIG. 1 is a schematic view of the overall structure of embodiment 1 of the present application;
fig. 2 is a schematic view of the internal structure of embodiment 1 of the present application, mainly showing a driving gear and an accelerating gear;
fig. 3 is a schematic view of the internal structure of embodiment 2 of the present application.
Description of reference numerals: 1. a housing; 2. a drive assembly; 21. a gear shaft; 22. an impeller; 3. a transmission assembly; 31. a driving gear; 32. an acceleration gear; 33. a base; 34. a rotating shaft; 35. and (5) detecting the piece.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses a water meter.
Example 1:
referring to fig. 1 and 2, a water meter includes a housing 1, and a driving assembly 2 and a transmission assembly 3 are disposed in the housing 1. Drive assembly 2 includes impeller 22 and gear shaft 21, and in the middle of impeller 22 is worn to locate by gear shaft 21, drive assembly 3 sets up the one end of keeping away from impeller 22 on gear shaft 21, can reduce rivers to drive assembly 3's direct influence, and then improves the degree of accuracy of water gauge examination.
Referring to fig. 2, the central axis of the gear shaft 21 coincides with the central axis of the housing 1, and the impellers 22 are distributed on the periphery of the gear shaft 21, so that when water flows into the water meter, the impellers 22 can rotate more uniformly, the transmission assembly 3 is driven to rotate stably, and the detection accuracy is further improved.
Referring to fig. 2, the transmission assembly 3 includes a driving gear 31 and an accelerating gear 32, the driving gear 31 and the impeller 22 rotate coaxially, and the driving gear 31 and the accelerating gear 32 are meshed through an external gear, so that the structure is simple, the production is simplified, and the processing and assembling efficiency of the water meter is improved.
Referring to fig. 2, a rotating shaft 34 penetrates through the accelerating gear 32, a to-be-detected piece 35 is detachably connected to the rotating shaft 34, and the to-be-detected piece 35 rotates coaxially with the accelerating gear 32. In this embodiment, the member 35 to be detected is engaged with the rotating shaft 34, but in other embodiments, a threaded connection or the like may be adopted as long as the member 35 to be detected and the accelerating gear 32 can rotate coaxially.
The water gauge outside still is provided with detection assembly, and detection assembly places in the casing 1 outside and with wait to detect the position that a 35 corresponds, and detection assembly is used for detecting the number of turns of waiting to detect a 35, and then confirms the water volume that flows through the water gauge. Specifically, the detection assembly can adopt an angular position induction type sensor and a chip disclosed in the publication No. CN110412310B, different calibration coefficients are respectively set at the minimum flow, the common flow and the maximum flow, the accuracy error of the water meter in the full flow range is ensured, the flow ratio of the water meter is effectively improved, and the application range is wider.
Referring to fig. 2, the diameter of the driving gear 31 is larger than that of the accelerating gear 32, and the transmission ratio of the driving gear 31 to the accelerating gear 32 can be selected from a range of 1:5-1:40, and can be specifically set according to requirements. For example, the transmission ratio may be set to 1:10, and when the driving gear 31 makes one tenth of a turn, and the accelerating gear 32 makes one turn, the member to be detected 35 also makes one turn following the accelerating gear 32, and the volume of water flowing through the water meter is calculated. At this moment, the adjustment and the verification can be carried out without waiting for the driving gear 31 to rotate for a circle, so that the rapid adjustment and the verification of the water meter can be realized, and the efficiency is improved.
The driving gear 31 and the accelerating gear 32 are made of plastic materials, so that the influence of strong magnets on the gears is effectively avoided, the precision of the water meter is guaranteed, meanwhile, the plastic materials are not easy to rust, and the service life of the water meter can be prolonged.
The implementation principle of the embodiment is as follows: driven by the water flow, the impeller 22 drives the driving gear 31 to rotate, and the driving gear 31 drives the accelerating gear 32 to rotate through the external gear. At the minimum flow rate, the driving gear 31 rotates slowly, and at this time, since the diameter of the driving gear 31 is larger than that of the accelerating gear 32, when the driving gear 31 rotates less than one turn, the accelerating gear 32 rotates several turns. The volume of water flowing through the meter is then calculated by detecting the number of turns of the member 35 to be detected. At this moment, the adjustment and the verification can be carried out without waiting for the driving gear 31 to rotate for a circle, so that the rapid adjustment and the verification of the water meter can be realized, and the efficiency is improved.
Example 2:
referring to fig. 3, the present embodiment is different from embodiment 1 in that a base 33 is integrally connected to a bottom end of a driving gear 31, the base 33 rotates coaxially with an impeller 22, and the driving gear 31 and an acceleration gear 32 are engaged with each other by an internal gear. At this time, the accelerating gear 32 is arranged on the inner side of the driving gear 31, so that the space occupied by the transmission assembly 3 in the transverse direction is reduced, and the installation space in the water meter is saved.
The implementation principle of the embodiment is as follows: under the drive of water flow, the driving assembly 2 drives the driving gear 31 to rotate, and the driving gear 31 drives the accelerating gear 32 to rotate through the internal gear. At the minimum flow rate, the driving gear 31 rotates slowly, and at this time, since the diameter of the driving gear 31 is larger than that of the accelerating gear 32, when the driving gear 31 rotates less than one turn, the accelerating gear 32 rotates several turns. The volume of water flowing through the meter is then calculated by detecting the number of turns of the member 35 to be detected. At this moment, the adjustment and the verification can be carried out without waiting for the driving gear 31 to rotate for a circle, so that the rapid adjustment and the verification of the water meter can be realized, and the efficiency is improved.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A water meter comprising a housing (1), characterized in that: the device is characterized by further comprising a driving assembly (2) and a transmission assembly (3) which are arranged in the shell (1), wherein the transmission assembly (3) comprises a driving gear (31) and an accelerating gear (32) which is meshed with the driving gear (31), the driving gear (31) and the driving assembly (2) rotate coaxially, a piece (35) to be detected is arranged on the accelerating gear (32), the piece (35) to be detected and the accelerating gear (32) rotate coaxially, and the diameter of the driving gear (31) is larger than that of the accelerating gear (32).
2. A water meter as claimed in claim 1, wherein: the driving gear (31) and the accelerating gear (32) are meshed through an external gear.
3. A water meter as claimed in claim 1, wherein: the bottom end of the driving gear (31) is connected with a base (33), the base (33) and the driving assembly (2) rotate coaxially, and the driving gear (31) is meshed with the accelerating gear (32) through an internal gear.
4. A water meter as claimed in claim 1, wherein: the transmission ratio of the driving gear (31) to the accelerating gear (32) is within the range of 1:5-1: 40.
5. A water meter as claimed in claim 1, wherein: a rotating shaft (34) penetrates through the middle of the accelerating gear (32), and the piece to be detected (35) is detachably connected to the rotating shaft (34).
6. A water meter as claimed in claim 5, wherein: still include the determine module, the determine module sets up on the water gauge, is used for detecting the number of turns of waiting to detect piece (35).
7. A water meter as claimed in claim 1, wherein: the driving assembly (2) comprises an impeller (22), a gear shaft (21) penetrates through the middle of the impeller (22), and the driving gear (31) is arranged at one end, far away from the impeller (22), of the gear shaft (21).
8. A water meter as claimed in claim 7, wherein: the gear shaft (21) is overlapped with the central shaft of the shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120302763.7U CN214010492U (en) | 2021-02-02 | 2021-02-02 | Water meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120302763.7U CN214010492U (en) | 2021-02-02 | 2021-02-02 | Water meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214010492U true CN214010492U (en) | 2021-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120302763.7U Active CN214010492U (en) | 2021-02-02 | 2021-02-02 | Water meter |
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| CN (1) | CN214010492U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114320974A (en) * | 2022-01-21 | 2022-04-12 | 广东泛仕达农牧风机有限公司 | Closed-loop feedback accurate ventilation efficient fan and fan control method |
-
2021
- 2021-02-02 CN CN202120302763.7U patent/CN214010492U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114320974A (en) * | 2022-01-21 | 2022-04-12 | 广东泛仕达农牧风机有限公司 | Closed-loop feedback accurate ventilation efficient fan and fan control method |
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