CN211527492U

CN211527492U - Novel turbine flowmeter

Info

Publication number: CN211527492U
Application number: CN201922329446.XU
Authority: CN
Inventors: 陈雪中; 陈光远
Original assignee: Jiangsu Hengda Automation Instrument Co ltd
Current assignee: Jiangsu Hengda Automation Instrument Co ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-09-18
Anticipated expiration: 2029-12-23

Abstract

The utility model relates to the technical field of turbine flowmeters for measuring liquid flow, and discloses a novel turbine flowmeter, wherein support rods are fixedly arranged on two sides of the inner part of a shell, a protection device is arranged on the right side of the support rod on the left side, the protection device comprises a support column, the left end of the support column is fixedly connected with the right side of the support rod on the left side, a movable plate is fixedly connected with a notch on the left side of a filter screen, when water enters the shell from the left side and flows through the impeller, the flow speed is converted into the rotating speed of the impeller, and then the rotating speed of the impeller is used for detecting the flow speed of the water, because the left side of the impeller is provided with the filter screen, when the water contains sand and stone, the sand and stone can be blocked by the filter screen, because the filter screen is funnel-shaped, the blocked sand and stone can flow out through, therefore, the accuracy of measurement is not reduced due to damage of the impeller.

Description

Novel turbine flowmeter

Technical Field

The invention relates to the technical field of turbine flowmeters for measuring liquid flow, in particular to a novel turbine flowmeter.

Background

The turbine flow sensor is a novel intelligent instrument which is developed by adopting an advanced ultra-low power consumption single chip microcomputer technology and integrates with display integration, adopts double-row liquid crystal field display, and has the obvious advantages of compact mechanism, visual and clear reading, high reliability, no interference of an external power supply, lightning protection, low cost and the like. Turbine flowmeter is the main kind among the velocity type flowmeter, when measuring natural water source, has impurity such as silt in the aquatic and can make the impeller cause the harm, influences the measuring precision.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a novel turbine flowmeter which has the advantages of protecting an impeller and the like, and solves the problem that the impeller is damaged by silt in water to influence the measurement accuracy.

(II) technical scheme

In order to achieve the purpose of protecting the impeller, the invention provides the following technical scheme: a novel turbine flowmeter comprises a shell and a filter screen, wherein the filter screen is funnel-shaped, two ends of the shell are both fixedly provided with clamping heads, two sides inside the shell are both fixedly provided with supporting rods, the right side of the left supporting rod is provided with a protection device, the protection device comprises a supporting column, the left end of the supporting column is fixedly connected with the right side of the left supporting rod, the upper surface of the supporting column is provided with a through groove, a supporting rod is fixedly arranged in the through groove, the outer part of the supporting rod is sleeved with a movable plate which is movably connected with the supporting rod, the upper end and the lower end of the movable plate are fixedly connected with a groove opening on the left side of the filter screen, the right end of the supporting column is movably connected with a rotary column through a bearing, the outer side of the rotary column is sleeved with an impeller which is, the display is fixedly arranged on the upper side of the connecting block.

Preferably, the pressure spring is sleeved on the outer side of the supporting rod, the right end of the pressure spring is fixedly connected with the right wall of the through groove, and the left end of the pressure spring is fixedly connected with the right side of the movable plate.

Preferably, the clamping groove is formed in the lower surface of the connecting block, and the upper side of the shell is provided with the through hole which communicates the inner space of the clamping groove with the inner space of the shell.

Preferably, a switch is fixedly installed on the left wall of the clamping groove, a supporting rod a is fixedly installed inside the clamping groove, and the movable plate is sleeved outside the supporting rod a.

Preferably, the upper end on the right side of the moving plate is fixedly connected with a rubber rope, and the right end of the rubber rope is fixedly connected with the right wall of the clamping groove.

Preferably, a gap is formed between the edge of the filter screen close to the inner wall of the shell and the inner wall of the shell.

(III) advantageous effects

Compared with the prior art, the invention provides a novel turbine flowmeter, which has the following beneficial effects:

1. this novel turbine flowmeter, with device and water piping connection through two dops, water gets into the shell from the left side and through converting the velocity of flow into the rotational speed of impeller when rivers pass through the impeller, the rotational speed of rethread impeller detects the velocity of flow of water, because the left of impeller is provided with the filter screen, when aquatic contains gravel and sand, gravel and sand can be blocked by the filter screen, because the filter screen is for leaking hopper-shaped, so the gravel and sand that is blocked can flow through the space between the inner wall of filter screen and shell along the inclined plane of filter screen, protected the impeller also can not let the inside of shell block up like this, can not lead to damaging because impeller and gravel and sand collision like this, improved the impeller like this and can not reduce the measuring precision because of damaging.

2. This novel turbine flowmeter, through filter screen and fly leaf fixed connection, the gravel and sand striking filter screen when aquatic can drive the filter screen and move right to make pressure spring shrink right, pressure spring's resilience can let the filter screen produce through the fly leaf and rock, can shake away the gravel and sand on the filter screen like this, prevents that the filter screen from blockking up the velocity of flow that influences the shell internal water, thereby influences measured data.

3. This novel turbine flowmeter, through the lower extreme that can drive the movable plate when water passes through the shell from the left side and moves right, the lower extreme of the support movable plate through support rod a moves the upper end of backup pad and will move left, the upper end of backup pad moves trigger switch left and opens the display, when water stops or flow too slowly and will not detect the velocity of flow, because the elasticity of rubber rope can make the upper end of movable plate move right when rivers stop or too slowly, thereby will loosen the switch and make the display close like this, can close the display when not needing to detect, do benefit to energy saving and emission reduction like this.

Drawings

FIG. 1 is a schematic cross-sectional front view of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1A;

FIG. 3 is a schematic top view of the protection device of FIG. 1 according to the present invention;

fig. 4 is a left side view structural diagram of the present invention.

In the figure: the device comprises a shell 1, a protection device 2, an impeller 3, a chuck 4, a rotary column 5, a support rod 6, a connecting block 7, a display 8, a filter screen 9, a rubber rope 10, a clamping groove 11, a support rod a12, a switch 13, a movable plate 14, a pressure spring 21, a support rod 22, a movable plate 23, a through groove 24 and a support rod 25.

Detailed Description

The present invention will be described in further detail with reference to the drawings, wherein like elements are designated by like reference numerals, wherein the terms "front", "rear", "left", "right", "upper" and "lower", "bottom" and "top" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular element.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a novel turbine flowmeter comprises a shell 1 and a filter screen 9, wherein the shell 1 is cylindrical, the filter screen 9 is funnel-shaped, two ends of the shell 1 are fixedly provided with clamping heads 4, the clamping heads 4 are circular, two sides inside the shell 1 are fixedly provided with supporting rods 6, the supporting rods 6 are rectangular, the right side of the left supporting rod 6 is provided with a protection device 2, the protection device 2 comprises a supporting column 22, the supporting column 22 is cylindrical, the left end of the supporting column 22 is fixedly connected with the right side of the left supporting rod 6, the upper surface of the supporting column 22 is provided with a through groove 24, the through groove 24 is rectangular, a supporting rod 25 is fixedly arranged in the through groove 24, the supporting rod 25 is cylindrical, the outer part of the supporting rod 25 is sleeved with a movable plate 23, the movable plate 23 is movably connected with the supporting rod 25, the movable plate 23 is rectangular, the movable plate 23 is fixedly connected with a notch on the left side of the filter, the outer side of the supporting rod 25 is sleeved with a pressure spring 21, the right end of the pressure spring 21 is fixedly connected with the right wall of the through groove 24, the left end of the pressure spring 21 is fixedly connected with the right side of the movable plate 23, the right end of the supporting column 22 is movably connected with a rotary column 5 through a bearing, the rotary column 5 is a cylinder, the outer side of the rotary column 5 is sleeved with an impeller 3, the impeller 3 is fixedly connected with the rotary column 5, the right end of the rotary column 5 is movably connected with a supporting rod 6 on the right side through a bearing, the upper side of the shell 1 is fixedly provided with a connecting block 7 which is rectangular, the upper side of the connecting block 7 is fixedly provided with a display 8, the lower surface of the connecting block 7 is provided with a clamping groove 11, the clamping groove 11 is rectangular, the upper side of the shell 1 is provided with a through hole which communicates the inner space of the clamping groove 11 with the inner, the support rod a12 is a cylinder, the movable plate 14 is sleeved outside the support rod a12, the movable plate 14 is rectangular, the upper end of the right side of the movable plate 14 is fixedly connected with the rubber rope 10, and the right end of the rubber rope 10 is fixedly connected with the right wall of the clamping groove 11.

When the device is used, the device is connected with a water pipe through the two clamping heads 4, water enters the shell 1 from the left side, the flow speed is converted into the rotating speed of the impeller when the water flows through the impeller 3, the rotating speed of the impeller 3 is used for detecting the flow speed of the water, the filter screen 9 is arranged on the left side of the impeller 3, when the water contains sand and stones, the sand and stones can be blocked by the filter screen 9, and the blocked sand and stones can flow out along the inclined plane of the filter screen 9 through the gap between the filter screen 9 and the inner wall of the shell 1 because the filter screen 9 is funnel-shaped, so that the impeller 3 is protected from blocking the inside of the shell 1, and the measuring accuracy of the impeller cannot be reduced due to damage;

because the filter screen 9 is fixedly connected with the movable plate 23, and the pressure spring 21 is fixedly connected to the right side of the movable plate 23, when sand and stones in water impact the filter screen 9, the filter screen 9 is driven to move rightwards, so that the pressure spring 21 contracts rightwards, the resilience of the pressure spring 21 can enable the filter screen to shake through the movable plate 23, and thus the sand and stones on the filter screen 9 can be shaken off, and the filter screen 9 is prevented from being blocked to influence the flow velocity of the water in the shell 1, so that the measured data is influenced;

when water passes through the shell 1 from the left side, the lower end of the movable plate 14 is driven to move rightwards, the lower end of the movable plate 14 supported by the supporting roller a12 moves rightwards, the upper end of the supporting plate 14 moves leftwards to trigger the switch 13 to open the display 8, when the water stops or flows too slowly and the flow rate is not detected, the upper end of the movable plate 14 moves rightwards due to the elastic force of the rubber rope 10 when the water stops or flows too slowly, the switch is loosened to close the display 8, and the display 8 can be closed when the detection is not needed, so that energy conservation and emission reduction are facilitated.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a novel turbine flowmeter, includes shell (1) and filter screen (9), its characterized in that: the filter screen (9) is funnel-shaped, both ends of the shell (1) are fixedly provided with clamping heads (4), both sides of the interior of the shell (1) are fixedly provided with supporting rods (6), the right side of the left supporting rod (6) is provided with a protection device (2), the protection device (2) comprises a supporting column (22), the left end of the supporting column (22) is fixedly connected with the right side of the left supporting rod (6), the upper surface of the supporting column (22) is provided with a through groove (24), a supporting rod (25) is fixedly arranged in the through groove (24), a movable plate (23) is sleeved outside the supporting rod (25), the movable plate (23) is movably connected with the supporting rod (25), the movable plate (23) is fixedly connected with a left notch of the filter screen (9), the right end of the supporting column (22) is movably connected with a rotary column (5) through a bearing, and an impeller, the impeller (3) is fixedly connected with the rotary column (5), the right end of the rotary column (5) is movably connected with the right support rod (6) through a bearing, the upper side of the shell (1) is fixedly provided with a connecting block (7), and the upper side of the connecting block (7) is fixedly provided with a display (8);

and a gap is reserved between the edge of the filter screen (9) close to the inner wall of the shell (1) and the inner wall of the shell (1).

2. The new turbine flowmeter of claim 1, characterized in that: the pressure spring (21) is sleeved on the outer side of the support rod (25), the right end of the pressure spring (21) is fixedly connected with the right wall of the through groove (24), and the left end of the pressure spring (21) is fixedly connected with the right side of the movable plate (23).

3. The new turbine flowmeter of claim 1, characterized in that: draw-in groove (11) have been seted up to the lower surface of connecting block (7), and the upside of shell (1) has been seted up the opening and the opening communicates the inner space of draw-in groove (11) with the inner space of shell (1).

4. The new turbine flowmeter of claim 3, characterized in that: a switch (13) is fixedly installed on the left wall of the clamping groove (11), a supporting rod a (12) is fixedly installed inside the clamping groove (11), and a movable plate (14) is sleeved outside the supporting rod a (12).

5. The new turbine flowmeter of claim 4, characterized in that: the upper end on the right side of the moving plate (14) is fixedly connected with a rubber rope (10), and the right end of the rubber rope (10) is fixedly connected with the right wall of the clamping groove (11).