High-precision metering water meter

Abstract

The utility model discloses a high-precision metering water meter which comprises an impeller, an impeller shell, an outer shell, a counter and a gear set. The impeller is installed in the impeller shell, fan blades of the impeller are aligned with the water inlet and the water outlet, and the top of an impeller shaft of the impeller is connected to the counter and the gear set. A baffle capable of moving up and down is arranged at the water inlet, and a plurality of small holes are formed in the bottom of the baffle. The water meter is simple in structure and small in pressure loss, the metering precision is greatly improved, and meanwhile the probability of failures is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to water meter, especially relate to a high accuracy metering water meter. BACKGROUND

[0002] The conventional large-diameter water meter cannot measure when the water consumption is very small because the small water flow cannot drive the gear to rotate. SUMMARY

[0003] The utility model provides a high accuracy metering water meter to solve the above problems.

[0004] The utility model discloses a high accuracy metering water meter, including impeller, impeller shell, shell and counter and gear set, the impeller is installed in the impeller shell, the fan leaf of impeller is aligned with the water inlet and the water outlet, and the impeller shaft top of impeller is connected to the counter and gear set, the water inlet is provided with the baffle that can move up and down, and a plurality of small holes are formed in the bottom of baffle.

[0005] Further, the bottom of the impeller is also provided with a small fan leaf, and the small fan leaf and the small hole are correspondingly positioned when the baffle is moved down to the bottom.

[0006] Further, the impeller shell is provided with a mounting clamping groove for mounting the impeller shell in the shell.

[0007] Further, the impeller shell is provided with a baffle sliding groove for mounting and limiting the baffle.

[0008] Further, the water inlet and the water outlet are at the same horizontal position.

[0009] Further, the water inlet and the water outlet are provided as vertical grids.

[0010] Further, the bottom of the baffle is provided with a plurality of clamping teeth matched with the grids of the water inlet.

[0011] Further, the top of the counter and gear set is provided with a circular glass sheet, the glass sheet is installed between the top of the shell and the box cover, and the glass sheet is provided with a gasket above and below.

[0012] Further, the box cover is provided with an observation hole in the middle.

[0013] Further, the water inlet and the water outlet are provided with filter screens.

[0014] The utility model has the beneficial technical effects that:

[0015] The water meter has simple structure, small pressure loss, greatly improved measurement accuracy and greatly reduced probability of failure. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the watch core structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the impeller shell structure of the utility model.

[0018] Figure 3 It is a schematic diagram of the impeller structure of the utility model.

[0019] Figure 4 It is a schematic diagram of the baffle structure of the utility model.

[0020] Figure 5 It is a top view of the watch core structure of the utility model.

[0021] Figure 6 It is a schematic diagram of the water meter overall structure of the utility model.

[0022] In the drawing: 1-impeller shell; 11-mounting clamping groove; 12-baffle sliding groove; 2-impeller; 21-impeller shaft; 22-fan blade; 23-small fan blade; 3-baffle; 31-small hole; 32-claw; 4-inlet; 5-outlet; 6-outer shell; 7-counter and gear set; 8-glass sheet; 9-gasket. DETAILED DESCRIPTION

[0023] The utility model will be further explained in detail in combination with the drawing and specific implementation method.

[0024] A high-precision metering water meter of the utility model, as shown in Figure 1 , Figure 6 , comprises an impeller 2, an impeller shell 1, an outer shell 6 and a counter and gear set 7. As shown in Figure 1 , the impeller 2 is installed in the impeller shell 1, the fan blade 22 of the impeller 2 is aligned with the inlet 4 and the outlet 5, and the top of the impeller shaft 21 of the impeller 2 is connected to the counter and gear set 7. As shown in Figure 5 , Figure 6 , a baffle 3 that can move up and down is arranged at the inlet 4, a plurality of small holes 31 are formed in the bottom of the baffle 3, as shown in Figure 4 . When the baffle 3 is completely opened during normal water use, the water flow enters through the small holes 31 on the baffle 3 to drive the gear to rotate and realize metering when the water consumption is very small, solving the defect that the traditional water meter cannot be metered when the water flow is small.

[0025] Further, as shown in Figure 3 , the bottom of the impeller 2 is also provided with a small fan blade 23, and the position of the small fan blade 23 corresponds to that of the small hole 31 when the baffle 3 is moved down to the bottom.

[0026] Further, as shown in Figure 2 , the impeller shell 1 is provided with a mounting clamping groove 11 for mounting the impeller shell 1 in the outer shell 6.

[0027] Further, as shown in Figure 2 The baffle 3 is installed and limited by the baffle sliding groove 12 arranged on the impeller shell 1.

[0028] Further, the utility model discloses a direct current structure, and the water inlet 4 and the water outlet 5 are in the same horizontal position.

[0029] Further, the water inlet 4 and the water outlet 5 are arranged as vertical grids.

[0030] Further, as shown in Figure 4 The baffle 3 is installed and limited by the baffle sliding groove 12 arranged on the impeller shell 1.

[0031] Further, as shown in Figure 6 The baffle 3 is installed and limited by the baffle sliding groove 12 arranged on the impeller shell 1.

[0032] Further, as shown in Figure 6 The baffle 3 is installed and limited by the baffle sliding groove 12 arranged on the impeller shell 1.

[0033] Further, the water inlet 4 and the water outlet 5 are arranged as vertical grids.

[0034] Obviously, the above embodiment of the utility model is only for clearly illustrating the utility model, and is not the limitation of the embodiment of the utility model. For the ordinary skilled in the art, on the basis of the above description, other different forms of changes or variations can be made. Here, it is not necessary and impossible to exhaust all the embodiments. Any modification, equivalent replacement and improvement, etc. made in the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A high-precision metering water meter, characterized in that It comprises an impeller (2), an impeller shell (1), a shell (6) and a counter and gear set (7); the impeller (2) is installed in the impeller shell (1), the fan blades (22) of the impeller (2) are aligned with the water inlet (4) and the water outlet (5), and the impeller shaft (21) of the impeller (2) is connected to the counter and gear set (7) at the top; a movable baffle (3) is arranged at the water inlet (4), and a plurality of small holes (31) are formed in the bottom of the baffle (3).

2. A high accuracy metering water meter according to claim 1, characterized in that The bottom of the impeller (2) is also provided with small fan blades (23), and the positions of the small fan blades (23) and the small holes (31) correspond when the baffle (3) is lowered to the bottom.

3. A high accuracy metering water meter according to claim 1, characterized in that An installation clamping groove (11) is arranged on the impeller shell (1) for installing the impeller shell (1) in the shell (6).

4. The high accuracy metering water meter of claim 1 wherein, A baffle sliding groove (12) is arranged on the impeller shell (1) for installing and limiting the baffle (3).

5. A high accuracy metering water meter according to claim 1, characterized in that The water inlet (4) and the water outlet (5) are at the same horizontal position.

6. A high accuracy metering water meter according to claim 1, characterized in that The water inlet (4) and the water outlet (5) are arranged as vertical grids.

7. A high accuracy metering water meter according to claim 6, characterized in that A plurality of clamping teeth (32) are arranged at the bottom of the baffle (3), and the clamping teeth (32) match the grids of the water inlet (4).

8. A high accuracy metering water meter according to claim 1, characterized in that A circular glass sheet (8) is arranged at the top of the counter and gear set (7), the glass sheet (8) is installed between the top of the shell (6) and the box cover, and gaskets (9) are arranged above and below the glass sheet (8).

9. A high accuracy metering water meter according to claim 8, characterized in that An observation hole is arranged in the middle of the box cover.

10. The high accuracy metering water meter of claim 1 wherein, A filter screen is arranged at the water inlet (4) and the water outlet (5).

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