CN115507909A

CN115507909A - Flow meter

Info

Publication number: CN115507909A
Application number: CN202211273822.8A
Authority: CN
Inventors: 沈文权; 胡建翔; 郑淑男
Original assignee: Zhejiang Dezhi Instrument Co ltd
Current assignee: Xia Qianming
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2022-12-23
Anticipated expiration: 2042-10-18
Also published as: CN115507909B

Abstract

The invention relates to the technical field of metering elements and discloses a flowmeter which comprises an instrument tube, wherein flange plates are fixedly arranged at two ends of the instrument tube, a fixed rod is fixedly arranged at the top side of the instrument tube, a counter is fixedly arranged at the top end of the fixed rod, guide rectifiers are fixedly arranged in the two ends of the instrument tube, one opposite sides of the two guide rectifiers are rotatably connected with a bearing, a turbine is rotatably connected between the two guide rectifiers through the bearing, a transmission part is arranged in the fixed rod, and a cleaning part is arranged in the fixed rod; the rotating plate is driven downwards through the sliding block to rotate, so that the rotating plate is located between every two sets of blades of the turbine, when the turbine rotates, the surfaces of the blades can be in contact friction with the cleaning sheet, the blades can be cleaned, the rotating plate can be driven to shake through the tension springs, the cleaning effect on the turbine blades can be improved, and the effects of conveniently cleaning the blades and avoiding influencing the measuring precision are achieved.

Description

Flow meter

Technical Field

The invention relates to the technical field of metering elements, in particular to a flowmeter.

Background

The flow meter is a fluid flow meter, which is defined as a meter for indicating the total amount of fluid to be measured and/or fluid in a selected time interval, and is simply a meter for measuring the flow rate of fluid in a pipeline or an open channel.

The working principle of the existing turbine flowmeter is that a measured fluid passes through a flowmeter, a turbine is stressed to rotate under the action of the fluid, the rotating speed is in direct proportion to the average flow velocity, the rotation of the turbine is converted into a periodic pulse signal by an inductive probe, and then the periodic pulse signal is analyzed by a meter to obtain a flow parameter, so that the flow data of the fluid can be obtained through calculation.

In the process of implementing the invention, the inventor finds that at least the following problems exist in the technology: the fluid always contains impurities, so that dirt is accumulated on the surface of the turbine when the turbine is washed for a long time, further the resistance to the rotation of the turbine is increased, the measuring result is not accurate enough, and the whole flowmeter is required to be disassembled when the turbine is cleaned, so that the turbine flowmeter is troublesome, and further improvement can be realized.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the flowmeter which has the advantages of conveniently cleaning the blades, avoiding influencing the measurement precision and the like, and solves the problems.

(II) technical scheme

In order to solve the above-mentioned problems, the present invention provides the following technical solutions: the utility model provides a flowmeter, includes the instrument tube, the equal fixed mounting in both ends of instrument tube has the ring flange, the top side fixed mounting of instrument tube has the dead lever, the top fixed mounting of dead lever has the counter, the inside equal fixed mounting in both ends of instrument tube has the direction rectifier, and two sets of relative one sides of direction rectifier rotate and are connected with the bearing, rotate through the bearing between two sets of direction rectifiers and are connected with the turbine, the inside of dead lever is provided with drive disk assembly, the inside of dead lever is provided with clearance part, just clearance part is located drive disk assembly's below.

Further, the transmission part comprises an electric telescopic rod fixedly installed in the top of the fixing rod, a movable chamber is formed in the fixing rod, a slotted cylinder is arranged at one end of an output shaft of the movable chamber, a blocking plate is fixedly installed at the bottom end of the slotted cylinder, and a through hole is formed in the position, corresponding to the blocking plate, of the instrument tube.

Further, clearance part includes sliding block and the spacing subassembly of fixed mounting in fluting drum both sides of sliding connection in the fluting drum, the front one side of sliding block is rotated and is connected with the connecting rod, the other end of connecting rod is rotated and is connected with the commentaries on classics board, the bottom fixed mounting who changes the board has the extension spring, the other end fixed mounting of extension spring has the extension board, the other end of extension board is provided with the base, the equal fixed mounting in the front back of commentaries on classics board has the clearance piece, spacing subassembly is including seting up the spout inside it, the inside fixed mounting of spout has the spring that resets, the other end fixed mounting of spring that resets has the extrusion head.

Further, electric telescopic handle fixed mounting is at the activity room roof, the top fixed mounting of fluting drum has limit slide, limit slide slides along the inner wall of activity room, can drive the inside lift of fluting drum at the activity room through electric telescopic handle is flexible, plays the location sliding effect through limit slide simultaneously.

Further, the outside cover of closure plate has round sealing rubber pad, the closure plate joint improves the leakproofness through sealing rubber pad in the through-hole, prevents that rivers from getting into in the fluting drum.

Further, sliding block fixed mounting is in electric telescopic handle's bottom, the sliding block initial position is located spacing subassembly top, just the inner wall of spacing subassembly protrusion fluting drum is spacing to the sliding block, can drive sliding block synchronous motion through electric telescopic handle is flexible, through spacing subassembly restriction sliding block, and then can drive fluting drum downstream.

Furthermore, the bottom end of the rotating plate and the top end of the supporting plate are fixedly provided with embedded plates, and two ends of the tension spring are respectively embedded and clamped in the upper and lower embedded plates.

Further, the bottom fixed mounting of base is on closure plate top side, the clearance piece is sponge abrasive paper, through the rotation fulcrum of base conduct extension board, through extension spring self characteristic tensile, can make the commentaries on classics board receive the extrusion shake, and then can carry out the friction clearance through the clearance piece to the surface of turbine.

Further, extrusion head sliding connection is in the inside of spout, the outside of extrusion head is the arc shape, and the elasticity through the reset spring makes extrusion head initial position be located outside the spout, and when the pressure that the extrusion head received exceeded the elasticity of reset spring, in can making the extrusion head slip move in the spout, no longer restricted the sliding block.

(III) advantageous effects

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

this flowmeter, carry on spacingly through the extrusion head to the sliding block, so when electric telescopic handle drives the sliding block downstream, can drive the whole downstream of fluting drum, and when spacing subassembly removes to keep off outside the through-hole, electric telescopic handle can continue to drive the sliding block downstream, and then can extrude the extrusion head into the spout, the sliding block can slide down to the below of spacing subassembly this moment, the sliding block continues to drive the commentaries on classics board through the connecting rod downwards and uses the base to rotate as the fulcrum, so can drive the commentaries on classics board and lie in between every two sets of blades of turbine, and then when the turbine rotates, its blade surface can with clearance piece contact friction, so can clear up the blade, conveniently change the board and follow a set of blade through the extension spring and remove simultaneously, and can drive the commentaries on classics board shake when contacting next set of blade, and then can improve the clearance effect to turbine blade, thereby reach and conveniently clear up the blade, avoid influencing the effect of measuring accuracy.

Drawings

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

FIG. 2 is a sectional view of the internal structure of the present invention;

FIG. 3 is a schematic view of the structure of the present invention in operation;

FIG. 4 is a schematic view of the construction of the transmission member of the present invention;

FIG. 5 is a schematic view of the construction of the transmission member of the present invention in operation;

FIG. 6 is a schematic view of a cleaning element according to the present invention;

FIG. 7 is an enlarged view of a portion of the structure shown in FIG. 6A according to the present invention.

In the figure: 1. an instrument tube; 2. a flange plate; 3. fixing the rod; 4. a counter; 5. a steering rectifier; 6. a turbine; 7. a transmission member; 71. an electric telescopic rod; 72. an activity room; 73. a slotted cylinder; 74. a blocking plate; 75. a through hole; 8. cleaning the component; 81. a slider; 82. a limiting component; 821. a chute; 822. a reset spring; 823. an extrusion head; 83. a connecting rod; 84. rotating the plate; 841. cleaning the tablets; 85. a tension spring; 86. a support plate; 87. a base.

Detailed Description

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.

Please refer to fig. 1-3, a flowmeter, including instrument tube 1, the equal fixed mounting in both ends of instrument tube 1 has ring flange 2, conveniently install the flowmeter through ring flange 2, the top side fixed mounting of instrument tube 1 has dead lever 3, the top fixed mounting of dead lever 3 has counter 4, the inside equal fixed mounting in both ends of instrument tube 1 has direction rectifier 5, the relative one side of two sets of direction rectifiers 5 is rotated and is connected with the bearing, it is connected with turbine 6 to rotate through the bearing between two sets of direction rectifiers 5, the inside of dead lever 3 is provided with drive disk assembly 7, the inside of dead lever 3 is provided with clearance part 8, and clearance part 8 is located the below of drive disk assembly 7.

Referring to fig. 4-5, the transmission part 7 includes an electric telescopic rod 71 fixedly installed in the top of the fixed rod 3, a movable chamber 72 is opened inside the fixed rod 3, the electric telescopic rod 71 is fixedly installed on the top wall of the movable chamber 72, one end of an output shaft of the movable chamber 72 is provided with a slotted cylinder 73, a limit slider is fixedly installed at the top end of the slotted cylinder 73, the limit slider slides along the inner wall of the movable chamber 72, the slotted cylinder 73 can be driven to lift inside the movable chamber 72 by the extension and contraction of the electric telescopic rod 71, and a positioning sliding effect is achieved by the limit slider; the bottom fixed mounting of fluting drum 73 has closure plate 74, and the outside cover of closure plate 74 has a round sealing rubber pad, and instrument tube 1 corresponds closure plate 74 department and has seted up through-hole 75, and closure plate 74 joint improves the leakproofness through sealing rubber pad in through-hole 75, prevents that the rivers from getting into in the fluting drum 73.

Referring to fig. 6, the cleaning component 8 includes a sliding block 81 slidably connected in the slotted cylinder 73 and limiting components 82 fixedly installed at two sides of the slotted cylinder 73, the sliding block 81 is fixedly installed at the bottom end of the electric telescopic rod 71, an initial position of the sliding block 81 is located above the limiting components 82, the limiting components 82 protrude out of the inner wall of the slotted cylinder 73 to limit the sliding block 81, the sliding block 81 is driven to move synchronously by the extension and contraction of the electric telescopic rod 71, the sliding block 81 is limited by the limiting components 82, and the slotted cylinder 73 can be driven to move downwards; the front side of sliding block 81 rotates and is connected with connecting rod 83, the other end of connecting rod 83 rotates and is connected with commentaries on classics board 84, the bottom fixed mounting of commentaries on classics board 84 has extension spring 85, the other end fixed mounting of extension spring 85 has extension board 86, the bottom of commentaries on classics board 84 and the equal fixed mounting in top of extension board 86 have the panel, the both ends of extension spring 85 scarf joint respectively and block into in two sets of panels about going up, the other end of extension board 86 is provided with base 87, base 87's bottom fixed mounting is on closure plate 74 top side, the equal fixed mounting in front back of commentaries on classics board 84 has clearance piece 841, clearance piece 841 is sponge abrasive paper, through the rotation fulcrum of base 87 as extension board 86, through extension spring 85 self characteristic stretch, can make commentaries on classics board 84 receive the extrusion shake, and then can carry out the friction clearance through clearance piece 841 to the surface of turbine 6.

Referring to fig. 7, the limiting component 82 includes a sliding groove 821 opened inside thereof, a return spring 822 is fixedly installed inside the sliding groove 821, an extrusion head 823 is fixedly installed at the other end of the return spring 822, the extrusion head 823 is slidably connected inside the sliding groove 821, an outer side of the extrusion head 823 is in a circular arc shape, an initial position of the extrusion head 823 is located outside the sliding groove 821 by an elastic force of the return spring 822, and when a pressure applied to the extrusion head 823 exceeds the elastic force of the return spring 822, the extrusion head 823 is slidably moved into the sliding groove 821 and does not limit the sliding block 81.

The working principle is as follows: referring to fig. 1-7, in operation, after the fluid is guided by the guiding rectifier 5, the flow direction of the fluid has a certain angle with the blades of the turbine 6, the blades have a rotation torque by the impulse force of the fluid, the blades rotate after overcoming the fluid resistance of the friction torque, and the instantaneous flow and the accumulated flow of the fluid are measured and displayed by the counter 4;

when the flowmeter needs to be cleaned after working for a long time, firstly, the electric telescopic rod 71 drives the sliding block 81 to move downwards along the inner wall of the slotted cylinder 73 and abut against the outer side of the extrusion head 823, the extrusion head 823 limits the sliding block 81, and then the slotted cylinder 73 is driven to move downwards integrally, as shown in fig. 3 and 5, when the slotted cylinder 73 moves to the through hole 75, the limiting component 82 blocks the outside of the through hole 75 to limit and position the slotted cylinder 73, at this time, the movable chamber 72 can continuously push the sliding block 81 to move downwards, and then the extrusion head 823 is extruded into the sliding groove 821, so that the sliding block 81 can slide downwards to the lower part of the limiting component 82;

at this time, the sliding block 81 downwards passes through the connecting rod 83 to drive the rotating plate 84 to rotate by taking the base 87 as a fulcrum, so that the rotating plate 84 deflects to the turbine 6, when the turbine 6 rotates, the blades of the turbine can be contacted with the cleaning sheet 841 on the outer side of the rotating plate 84, the surfaces of the blades of the turbine 6 can be cleaned by friction of the cleaning sheet 841, meanwhile, the turbine 6 rotates to extrude the rotating plate 84, the rotating plate 84 can be conveniently deflected along with the blades through the tension spring 85, the upper group of blades are far away from the rotating plate 84, and when the lower group of blades are close to the rotating plate 84, the rotating plate 84 can be driven to shake through the tension spring 85, and the cleaning effect on the blades of the turbine 6 can be further improved;

after the cleaning is completed, the electric telescopic rod 71 drives the sliding block 81 to move upwards along the inner wall of the slotted cylinder 73, so that the rotating plate 84 can be driven to rotate to the inside of the slotted cylinder 73, at the moment, the extrusion head 823 continues to limit the sliding block 81 above the sliding block 81, so that the slotted cylinder 73 can move upwards integrally, finally, the blocking plate 74 is clamped into the through hole 75, at the moment, the sliding block 81 can be extruded into the sliding groove 821 through the extrusion head 823, and then the sliding block is moved to the upper part of the limiting component 82 again.

In summary, in the flowmeter, the sliding block 81 is limited by the extrusion head 823, so that when the electric telescopic rod 71 drives the sliding block 81 to move downward, the slotted cylinder 73 is driven to move downward as a whole, and when the limiting component 82 moves to block outside the through hole 75, the electric telescopic rod 71 continues to drive the sliding block 81 to move downward, and further the extrusion head 823 is extruded into the sliding groove 821, at this time, the sliding block 81 slides downward below the limiting component 82, the sliding block 81 continues to drive the rotating plate 84 to rotate around the base 87 through the connecting rod 83, so that the rotating plate 84 is driven to be located between every two groups of blades of the turbine 6, and further when the turbine 6 rotates, the surface of the blade contacts and rubs with the cleaning sheet 841, so that the blade is cleaned, and meanwhile, the rotating plate 84 is convenient to move along with the previous group of blades through the tension spring 85, and the rotating plate 84 is driven to shake when contacting with the next group of blades, so that the cleaning effect on the blades of the turbine 6 can be improved, thereby achieving the effects of conveniently cleaning the blades and avoiding affecting the measurement accuracy.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," and "secured" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integral to; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The standard parts used by the invention can be purchased from the market, and the special-shaped parts can be customized according to the description and the description of the attached drawings.

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. A flowmeter comprising an instrumentation tube (1), characterized in that: the equal fixed mounting in both ends of instrument pipe (1) has ring flange (2), the top side fixed mounting of instrument pipe (1) has dead lever (3), the top fixed mounting of dead lever (3) has counter (4), the inside equal fixed mounting in both ends of instrument pipe (1) has direction rectifier (5), and two sets of one sides relative of direction rectifier (5) are rotated and are connected with the bearing, rotate through the bearing between two sets of direction rectifiers (5) and are connected with turbine (6), the inside of dead lever (3) is provided with drive disk assembly (7), the inside of dead lever (3) is provided with clearance part (8), just clearance part (8) are located the below of drive disk assembly (7).

2. The flowmeter of claim 1, wherein: drive disk assembly (7) are including electric telescopic handle (71) of fixed mounting in dead lever (3) top, movable chamber (72) have been seted up to the inside of dead lever (3), the output shaft one end of movable chamber (72) is provided with fluting drum (73), the bottom fixed mounting of fluting drum (73) has closure plate (74), instrument tube (1) corresponds closure plate (74) department and has seted up through-hole (75).

3. The flowmeter of claim 1, wherein: clearance part (8) include sliding block (81) and the spacing subassembly (82) of fixed mounting in fluting drum (73) both sides of sliding connection in fluting drum (73), the front one side of sliding block (81) is rotated and is connected with connecting rod (83), the other end of connecting rod (83) is rotated and is connected with commentaries on classics board (84), the bottom fixed mounting who changes board (84) has extension spring (85), the other end fixed mounting of extension spring (85) has extension board (86), the other end of extension board (86) is provided with base (87), the equal fixed mounting in front back of commentaries on classics board (84) has clearance piece (841), spacing subassembly (82) are including seting up spout (821) inside it, the inside fixed mounting of spout (821) has reset spring (822), the other end fixed mounting of reset spring (822) has extrusion head (823).

4. A flowmeter according to claim 2, wherein: the electric telescopic rod (71) is fixedly installed on the top wall of the movable chamber (72), the top end of the slotted cylinder (73) is fixedly provided with a limiting sliding block, and the limiting sliding block slides along the inner wall of the movable chamber (72).

5. A flowmeter according to claim 2, wherein: the outside cover of closure plate (74) has round sealing rubber pad, closure plate (74) joint is in through-hole (75).

6. A flowmeter according to claim 3 wherein: sliding block (81) fixed mounting is in the bottom of electric telescopic handle (71), sliding block (81) initial position is located spacing subassembly (82) top, just the inner wall that spacing subassembly (82) protrusion fluting drum (73) is spacing to sliding block (81).

7. A flowmeter according to claim 3 wherein: the bottom end of the rotating plate (84) and the top end of the support plate (86) are fixedly provided with embedded plates, and two ends of the tension spring (85) are respectively embedded and clamped in the upper and lower groups of embedded plates.

8. A flowmeter according to claim 3 wherein: the bottom end of the base (87) is fixedly arranged on the top side of the blocking plate (74), and the cleaning sheet (841) is sponge sand paper.

9. A flowmeter according to claim 3 wherein: the extrusion head (823) is connected inside the sliding groove (821) in a sliding mode, and the outer side of the extrusion head (823) is in a circular arc shape.