CN213274407U

CN213274407U - High-precision gas Roots flowmeter

Info

Publication number: CN213274407U
Application number: CN202022326445.2U
Authority: CN
Inventors: 李亚威
Original assignee: Shanghai Zhengju Automation Instrument Co ltd
Current assignee: Shanghai Zhengju Automation Instrument Co ltd
Priority date: 2020-10-19
Filing date: 2020-10-19
Publication date: 2021-05-25
Anticipated expiration: 2030-10-19

Abstract

A high-precision gas Roots flowmeter comprises a box body, wherein a first cavity and a second cavity are arranged in the box body, the first cavity is communicated with the outside, a first supporting plate is horizontally arranged in the second cavity, a plurality of first springs are arranged at the lower end of the first supporting plate, one end of each first spring is fixedly connected with the bottom surface of the second cavity, a supporting shaft is fixedly arranged on the upper end surface of the first supporting plate, and a flowmeter structure is arranged at the upper end of the supporting shaft, which extends into the first cavity; the utility model discloses the structure is ingenious, thinks about the novelty, can reduce the vibrations that the flowmeter structure received, and protection flowmeter structure does not receive the damage, simple structure, easy dismounting all can be automatic carry out furthest's protection with the flowmeter when receiving more weak or stronger striking.

Description

High-precision gas Roots flowmeter

Technical Field

The utility model relates to a gas flowmeter technical field, in particular to gaseous roots flowmeter of high accuracy.

Background

The gas Roots flowmeter, also known as gas Roots flowmeter, is mainly used for high-precision gas or liquid flow meters for continuous or intermittent measurement of gas or liquid flow in pipes, and utilizes mechanical measuring elements to continuously divide the fluid into single known volume portions, and measures the total volume of the flow according to the times of filling and discharging the volume portions of the fluid in a metering chamber successively and repeatedly.

The existing gas Roots flowmeter is not provided with a protection structure, a display instrument of the gas Roots flowmeter is exposed outside, no measures are taken for protection, the display instrument is easily damaged by malicious damage and collision, and the problem that the gas Roots flowmeter with a protection function is needed urgently to solve the problem is solved.

A high-precision gas roots flowmeter is required to solve this problem.

SUMMERY OF THE UTILITY MODEL

To the above situation, in order to overcome the defects of the prior art, the present invention aims to provide a high-precision gas roots flowmeter, which effectively solves the above problems.

The technical scheme of its solution is, the utility model comprises a box body, a first cavity and a second cavity are arranged in the box body, the first cavity is communicated with the outside, a first supporting plate is horizontally arranged in the second cavity, a plurality of first springs are arranged at the lower end of the first supporting plate, one end of each first spring is fixedly connected with the bottom surface of the second cavity, a supporting shaft is fixedly arranged at the upper end surface of the first supporting plate, and a flowmeter structure is arranged at the upper end of the supporting shaft extending into the first cavity;

the front end, the rear end, the left end and the right end of the supporting shaft are respectively provided with a sensor, four push rods which are respectively parallel to the four sensors are arranged on the peripheral side wall of the box body, the push rods penetrate through the box body and extend into the second cavity, one end of each push rod, which extends out of the second cavity, is fixedly provided with a protection plate, grooves and a second spring are also arranged on the peripheral side wall of the box body, and the end part of the second spring is connected to the protection plate; the four sides of the first cavity are provided with grooves, tension springs are arranged in the grooves, one ends of the tension springs are fixedly connected with the flowmeter structure, the bottom end of the first cavity is provided with overlapped air bags on the front side, the rear side, the left side and the right side of the flowmeter structure, a plurality of air pumps respectively communicated with the four air bags are arranged in the second cavity, and a controller connected with the air pumps and the sensors is also arranged in the second cavity;

the flowmeter structure include the under casing, install the flowmeter body in the under casing, the height of guard plate is higher than the flowmeter body.

The utility model has the advantages that: the utility model discloses the structure is ingenious, thinks about the novelty, can reduce the vibrations that the flowmeter structure received, and protection flowmeter structure does not receive the damage, simple structure, easy dismounting all can be automatic carry out furthest's protection with the flowmeter when receiving more weak or stronger striking.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a sectional view taken along the direction a-a in fig. 1 according to the present invention.

Detailed Description

The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.

Example (b):

as shown in fig. 1 to 2, the utility model comprises a box body 1, a first cavity 2 and a second cavity 3 are arranged in the box body 1, the first cavity 2 is communicated with the outside, a first supporting plate 4 is horizontally arranged in the second cavity 3, a plurality of first springs 5 are arranged at the lower end of the first supporting plate 4, one end of each first spring 5 is fixedly connected with the bottom surface of the second cavity 3, a supporting shaft 6 is fixedly arranged on the upper end surface of the first supporting plate 4, and a flowmeter structure is arranged at the upper end of the supporting shaft 6 extending into the first cavity 2;

the front end, the rear end, the left end and the right end of the supporting shaft 6 are respectively provided with a sensor 7, four push rods 8 which are respectively parallel to the four sensors 7 are arranged on the peripheral side wall of the box body 1, the push rods 8 penetrate through the box body 1 and extend into the second cavity 3, one end, extending out of the second cavity 3, of each push rod 8 is fixedly provided with a protection plate 9, the peripheral side wall of the box body is also provided with a second spring 22, and the end part of each second spring 22 is connected to the protection plate 9; the peripheral side surfaces of the first cavity 2 are all provided with grooves 10, tension springs 12 are arranged in the grooves 10, the end parts of the tension springs 12 are fixedly connected with the flow meter structure, the bottom end of the first cavity is provided with overlapped air bags 13 on the front side, the rear side, the left side and the right side of the flow meter structure, a plurality of air pumps 14 respectively communicated with the four air bags 13 are arranged in the second cavity 3, and a controller which can be plc or a computer and is connected with the air pumps 14 and the sensor 7 is also arranged in the second cavity;

the flowmeter structure comprises a bottom box 15, a flowmeter body 16 is installed in the bottom box 15, and the height of the protection plate 9 is higher than that of the flowmeter body 16.

And a rubber anti-collision plate 19 is fixedly arranged on the inner side wall of the box body 1.

An end cover 21 is fixedly arranged on the box body 1.

The back shaft include fixed cover 23 of fixed mounting in 3 bottoms of second cavity, install hydraulic stem 24 in the fixed cover 23, in the upper end of hydraulic stem 24 stretched into first cavity 2, the lower extreme of under casing 15 was equipped with the spout, pulley and spout sliding connection are passed through to the upper end of hydraulic stem 24.

The side walls of the box body 1, the protection plate 9, the rubber anti-collision plate 19 and the bottom box 15 are all provided with mounting grooves for connecting a flowmeter body in the device with an external pipeline.

The air pump 14 is communicated with the air bag 13 through a five-way valve.

The utility model discloses when using, when the striking is received to one side of this device, what receive the striking earlier is that be located the guard plate 9 in the box 1 outside, the guard plate 9 of receiving the striking removes to box 1 direction, the push rod 8 of drive fixing on guard plate 9 removes in to box 1, when the dynamics of striking is less, the impulse of striking is cushioned by second spring 22, the dynamics of striking is great, make guard plate 9 remove more distance inwards, the one end of push rod 8 extends sensor 7 department, controller control air pump 14 who is connected with sensor 7 aerifys to the gasbag 13 of the one side of being struck in, then the direct contact of striking can not be received to the flowmeter structure, protection flowmeter structure that can furthest.

When the flowmeter needs to be repaired or replaced, the flowmeter can be conveniently operated by lifting the flowmeter structure through the hydraulic rod 24.

The foregoing detailed description/examples are specific embodiments of the present invention, and are intended to be illustrative of the principles of the present invention, which are intended to be illustrative and exemplary, and should not be construed as limiting the scope of the present invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include those which make any obvious replacement or modification of the embodiments described herein, and all of which are within the scope of the present invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims

1. A high-precision gas Roots flowmeter comprises a box body (1) and is characterized in that a first cavity (2) and a second cavity (3) are arranged in the box body (1), the first cavity (2) is communicated with the outside, a first supporting plate (4) is horizontally arranged in the second cavity (3), a plurality of first springs (5) are arranged at the lower end of the first supporting plate (4), one ends of the first springs (5) are fixedly connected with the bottom surface of the second cavity (3), a supporting shaft (6) is fixedly arranged on the upper end surface of the first supporting plate (4), and a flowmeter structure is arranged at the upper end, extending into the first cavity (2), of the supporting shaft (6); the front end, the rear end, the left end and the right end of the supporting shaft (6) are respectively provided with a sensor (7), four push rods (8) which are parallel to the four sensors (7) are arranged on the peripheral side wall of the box body (1), the push rods (8) penetrate through the box body (1) and extend into the second cavity (3), one end, extending out of the second cavity (3), of each push rod (8) is fixedly provided with a protection plate (9), the peripheral side wall of the box body is also provided with a second spring (22), and the end part of each second spring (22) is connected to the protection plate (9); the four-side flow meter is characterized in that grooves (10) are formed in the peripheral side faces of the first cavity (2), tension springs (12) are arranged in the grooves (10), the end portions of the tension springs (12) are fixedly connected with the flow meter structure, the bottom end of the first cavity is provided with overlapped air bags (13) on the front side, the rear side, the left side and the right side of the flow meter structure, a plurality of air pumps (14) respectively communicated with the four air bags (13) are arranged in the second cavity (3), and a controller connected with the air pumps (14) and the sensors (7) is further arranged in the second cavity; the flowmeter structure include under casing (15), install flowmeter body (16) in under casing (15), the height of guard plate (9) is higher than flowmeter body (16).

2. A roots type flowmeter for high precision gas as set forth in claim 1 wherein a rubber anti-collision plate (19) is fixedly mounted on the inner side wall of the case (1).

3. A roots-type flowmeter for high-precision gas as set forth in claim 1 wherein the case (1) is fixedly mounted with an end cap (21).

4. A roots-type high-precision gas flowmeter as claimed in claim 1, wherein the supporting shaft comprises a fixed sleeve (23) fixedly mounted at the bottom end of the second cavity (3), a hydraulic rod (24) is mounted in the fixed sleeve (23), the upper end of the hydraulic rod (24) extends into the first cavity (2), the lower end of the bottom box (15) is provided with a sliding groove, and the upper end of the hydraulic rod (24) is slidably connected with the sliding groove through a pulley.

5. A roots type high-precision gas flowmeter as claimed in claim 1 or 2, wherein the side walls of the box body (1), the protection plate (9), the rubber anti-collision plate (19) and the bottom box (15) are all provided with mounting grooves.

6. A high accuracy gas roots flowmeter as set forth in claim 1 wherein the air pump (14) communicates with the air cell (13) through a five-way valve.