CN212111474U

CN212111474U - Novel single-flow speedometer

Info

Publication number: CN212111474U
Application number: CN202020621018.4U
Authority: CN
Inventors: 孙策; 孙仁龙
Original assignee: Ningbo Rising Intelligent Technology Co ltd
Current assignee: Ningbo Rising Intelligent Technology Co ltd
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2020-12-08
Anticipated expiration: 2030-04-23

Abstract

The utility model discloses a novel single-flow speedometer, relating to the technical field of speedometer, comprising a device main body, an upper cover and a rotating device; the rotating device is arranged in the cavity of the device main body, and the upper cover is fixed on the upper part of the cavity; the rotating device comprises a rotating main shaft and an impeller sleeved on the rotating main shaft, one end of the rotating main shaft is abutted against the bottom of the device main body, and the other end of the rotating main shaft is abutted against the upper cover; the utility model discloses a novel single current speedometer runs through the impeller through a rotatory main shaft, can be fine guarantee the stability of impeller under the rotating condition, improve the stability and the precision of whole measuring device promptly to can also improve life, and adopt this structural design, the production technology is simpler, can save manufacturing cost greatly; through the setting of rectification muscle, play the effect to the fluid's that passes through velocity of flow measuring device rectification, further improve the stability in the whole device course of operation.

Description

Novel single-flow speedometer

Technical Field

The utility model belongs to the technical field of the current meter technique and specifically relates to a novel single current speedometer.

Background

The water meter is used for measuring the water flow of a sealed pipeline and full perfusion and is transmitted to a counting mechanism through a metering mechanism to accumulate flow measurement, the water meter is generally divided into a positive displacement water meter and a speed water meter, the directions of water flow vortexes of the existing water meter metering structure are not neat and uniform, so that more turbulent flows are caused, and the counting is not accurate enough; the positioning and assembly of the impeller cover and the impeller cover are complex, and the production efficiency is low; the balance degree of the internal structure of the water meter is poor, so that the impeller is unstable in rotation, and the counting accuracy is further influenced; particularly, because it is fixed through the pivot of difference from top to bottom at the impeller, guarantee axiality that can not be fine to make the impeller rotate unstably, perhaps can guarantee the axiality earlier, but after long-time the use, the axiality deviation appears more easily, and still have the problem that production technology is complicated, production efficiency is low.

SUMMERY OF THE UTILITY MODEL

First, technical problem to be solved

The utility model discloses an above-mentioned defect to prior art existence especially provides a neotype single current speedometer, solves the poor stability that current velocity of flow instrument exists, problem that production efficiency is low.

Second, technical scheme

In order to solve the technical problem, the utility model provides a novel single flow speedometer, which comprises a device main body, an upper cover and a rotating device; the rotating device is arranged in the cavity of the device main body, and the upper cover is fixed on the upper part of the cavity;

the rotating device comprises a rotating main shaft and an impeller sleeved on the rotating main shaft, one end of the rotating main shaft is abutted to the bottom of the device main body, and the other end of the rotating main shaft is abutted to the upper cover.

The upper cover comprises a pressing plate, a pressing cap and a magnetic-proof ring, the pressing plate is arranged on the upper portion of the device main body, the pressing cap is used for pressing the pressing plate tightly, and the magnetic-proof ring is arranged on the inner ring of the pressing cap.

The device comprises a device body, a pressing plate, a gasket, an O-shaped ring and an upper cover, wherein the gasket is arranged at the bottom of the pressing plate and sleeved in the device body, and the O-shaped ring is arranged between the pressing plate and the gasket and used for sealing between the device body and the upper cover.

The rotating main shaft is fixedly installed at the bottom of the device main body through the lower bearing sleeve, and the rotating main shaft is fixedly installed with the upper cover through the upper bearing sleeve.

The rotating main shaft penetrates through the rotating axis of the impeller, and the rotating main shaft and the impeller are tightly matched and can rotate synchronously.

Wherein, the material of the rotating main shaft is stainless steel.

Wherein, device main part bottom still is equipped with the base, is equipped with a plurality of rectification muscle on the base, and the rectification muscle is around base center equipartition setting.

Wherein, the bottom of the pressing plate is provided with a plurality of rectifying ribs which are uniformly distributed around the center of the pressing plate.

Wherein, the device main body is also provided with a water inlet and a water outlet.

Third, beneficial effect

Compared with the prior art, the novel single-flow speedometer of the utility model has the advantages that the impeller is penetrated through by the rotating main shaft, the stability of the impeller in a rotating state can be well guaranteed, namely, the stability and the precision of the whole measuring device are improved, so that the service life can also be prolonged, and the production process is simpler and the production cost can be greatly saved by adopting the structural design;

through the setting of rectification muscle, play the effect to the fluid's that passes through velocity of flow measuring device rectification, further improve the stability in the whole device course of operation.

Drawings

Fig. 1 is a perspective view of the present invention 1;

FIG. 2 is an exploded view of the present invention;

fig. 3 is a perspective view of the present invention 2;

FIG. 4 is a perspective view of the pressing plate of the present invention;

in the figure: 1 is a device main body; 2 is an upper cover; 3 is a rotating device; 5, a pressing cap; 6 is a magnetic prevention ring; 7 is a pressing plate; 8 is an O-shaped ring; 9 is a gasket; 10 is a rotating main shaft; 11 is an impeller; 12 is a lower bearing sleeve; 13 is a base; 14 is an upper bearing sleeve; 15 is a rectifying rib; 16 is a cavity; 17 is a water inlet; and 18 is a water outlet.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Example 1:

a novel single flow speedometer of the embodiment of the utility model, as shown in fig. 1 to 4, comprises a device main body 1, an upper cover 2 and a rotating device 3; the rotating device 3 is arranged in a cavity 16 of the device body 1, and the upper cover 2 is fixed on the upper part of the cavity 16; specifically, a water inlet 17 and a water outlet 18 are further arranged on the device main body 1, fluid flows into the cavity 16 through the water inlet 17 and drives the impeller 11 to rotate, and then flows out of the water outlet 18, and the flow rate of the fluid is measured through the process;

as shown in fig. 2, the rotating device 3 includes a rotating main shaft 10, an impeller 11 sleeved on the rotating main shaft 10, one end of the rotating main shaft 10 abuts against the bottom of the device body 1, and the other end of the rotating main shaft 10 abuts against the upper cover 2, specifically, the rotating main shaft 10 of this embodiment is a stainless steel rotating shaft, directly passes through the rotating axis of the impeller 11, and the rotating main shaft 10 and the impeller 11 are tightly fitted and can rotate synchronously, a lower bearing sleeve 12 and an upper bearing sleeve 14 are respectively disposed at the upper end and the lower end of the rotating main shaft 10, i.e. the rotating main shaft 10 is fixed to the bottom of the device body 1 through the lower bearing sleeve 12, the rotating main shaft 10 is fixed to the upper cover 2 through the upper bearing sleeve 14, the rotating center of the rotating main shaft 10 is fixed through the lower bearing sleeve 12 and the upper bearing sleeve 14, compared with the existing similar products, the concentricity caused by fixing the impeller through separate rotating shafts is, and the production efficiency is low; the flow velocity measuring device of this embodiment runs through impeller 11 through unique rotating main shaft 10, and assurance impeller 11 that can be fine is at the stability under the rotating condition, improves whole measuring device's stability and precision promptly to can also improve life, and adopt the structure of this embodiment, production technology is simpler, can save manufacturing cost greatly.

As shown in fig. 2, in the present embodiment, the upper cover 2 includes a pressing plate 7, a pressing cap 5 and a magnetic-proof ring 6, the pressing plate 7 is disposed on the upper portion of the device body 1, the pressing cap 5 is used for pressing the pressing plate 7, the magnetic-proof ring 6 is disposed on the inner ring of the pressing cap 5, the upper portion of the upper cover 2 is used for fixedly mounting a corresponding device such as an instrument panel, and the magnetic-proof ring 6 plays a role in resisting interference.

As shown in fig. 2, a gasket 9 is arranged at the bottom of the pressing plate 7, the gasket 9 is sleeved in the device body 1, an O-ring 8 is arranged between the pressing plate 7 and the gasket 9, and the O-ring 8 is used for sealing between the device body 1 and the upper cover 2.

Example 2:

compared with embodiment 1, in this embodiment, the bottom of the device main body 1 is further provided with a base 13, the base 13 is provided with a plurality of rectifying ribs 15, the number of the rectifying ribs 15 on the base 13 is 6, and the rectifying ribs 15 are uniformly distributed around the center of the base 13; the bottom of the pressing plate 7 is provided with a plurality of rectifying ribs 15, the number of the rectifying ribs 15 at the bottom of the pressing plate 7 is 2, the rectifying ribs 15 are uniformly distributed around the center of the pressing plate 7, namely, the rectifying ribs 15 are arranged above and below the cavity 16, as shown in fig. 2 and 4, the rectifying ribs 15 play a role in rectifying fluid passing through the flow velocity measuring device, and the stability of the whole device in the working process is further improved.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A novel single-flow speedometer comprises a device main body (1), an upper cover (2) and a rotating device (3); the method is characterized in that: the rotating device (3) is arranged in a cavity (16) of the device main body (1), and the upper cover (2) is fixed on the upper part of the cavity (16);

the rotating device (3) comprises a rotating main shaft (10) and an impeller (11) arranged on the rotating main shaft (10) in a sleeved mode, one end of the rotating main shaft (10) is abutted to the bottom of the device body (1), and the other end of the rotating main shaft (10) is abutted to the upper cover (2).

2. The novel single flow rate meter as set forth in claim 1, wherein: the upper cover (2) comprises a pressing plate (7), a pressing cap (5) and a magnetism-proof ring (6), the pressing plate (7) is arranged on the upper portion of the device main body (1), the pressing cap (5) is used for pressing the pressing plate (7), and the magnetism-proof ring (6) is arranged on the inner ring of the pressing cap (5).

3. The novel single flow rate meter as set forth in claim 2, wherein: the device is characterized in that a gasket (9) is arranged at the bottom of the pressing plate (7), the gasket (9) is sleeved in the device main body (1), an O-shaped ring (8) is arranged between the pressing plate (7) and the gasket (9), and the O-shaped ring (8) is used for sealing between the device main body (1) and the upper cover (2).

4. The novel single flow rate meter as set forth in claim 1, wherein: the rotating main shaft (10) is fixedly installed at the bottom of the device main body (1) through a lower bearing sleeve (12), and the rotating main shaft (10) is fixedly installed on the upper cover (2) through an upper bearing sleeve (14).

5. The novel single flow rate meter as set forth in claim 4, wherein: the rotating main shaft (10) penetrates through the rotating shaft center of the impeller (11), and the rotating main shaft (10) and the impeller (11) are in close fit and can rotate synchronously.

6. The novel single flow rate meter as set forth in claim 1, wherein: the rotating main shaft (10) is made of stainless steel.

7. The novel single flow rate meter as set forth in claim 1, wherein: the device is characterized in that a base (13) is further arranged at the bottom of the device body (1), a plurality of rectifying ribs (15) are arranged on the base (13), and the rectifying ribs (15) are uniformly distributed around the center of the base (13).

8. The novel single flow rate meter as set forth in claim 2, wherein: the bottom of the pressing plate (7) is provided with a plurality of rectifying ribs (15), and the rectifying ribs (15) are uniformly distributed around the center of the pressing plate (7).

9. The novel single flow rate meter as set forth in claim 1, wherein: the device main body (1) is also provided with a water inlet (17) and a water outlet (18).