CN213120666U

CN213120666U - Differential pressure type flowmeter with high measurement precision

Info

Publication number: CN213120666U
Application number: CN202021696900.1U
Authority: CN
Inventors: 李蔼妮; 段庚辰
Original assignee: Individual
Current assignee: Wuhan Ruibo Hongjin Instrument Co ltd
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2021-05-04
Anticipated expiration: 2030-08-14

Abstract

The utility model discloses a differential pressure formula flowmeter that measurement accuracy is high, including flowmeter body and incrustation scale clearance mechanism, incrustation scale clearance mechanism establishes at the flowmeter originally internally, the flowmeter body includes the barrel, the left and right sides of barrel all is equipped with the ring flange, the mid point department fixed mounting at barrel top has the count panel board, the drive chamber has been seted up in the barrel, the top fixed mounting of drive intracavity wall has micro motor, fixedly connected with drive pivot on micro motor's the output shaft, the bottom of drive pivot runs through drive chamber and barrel and extends to the inboard fixedly connected with initiative bevel gear of barrel extremely down in proper order from last. This differential pressure formula flowmeter that measurement accuracy is high, structural design is reasonable, and convenient to use can clear away its inner wall accumulational incrustation scale fast after using for a long time differential pressure formula flowmeter, and then has guaranteed the measuring accuracy, satisfies the user demand.

Description

Differential pressure type flowmeter with high measurement precision

Technical Field

The utility model relates to a flowmeter technical field specifically is a differential pressure formula flowmeter that measurement accuracy is high.

Background

In the prior art, when the differential pressure type flowmeter is used for measuring flow, water scale can be slowly accumulated on the inner wall of the flowmeter after the flowmeter is used for a long time, the flowmeter cannot be effectively cleaned, the measurement accuracy can be further influenced, and the requirements are difficult to meet.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a differential pressure formula flowmeter that measurement accuracy is high to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a differential pressure type flowmeter with high measurement precision comprises a flowmeter body and an incrustation scale cleaning mechanism, wherein the incrustation scale cleaning mechanism is arranged in the flowmeter body, the flowmeter body comprises a cylinder body, flange plates are arranged on the left side and the right side of the cylinder body, a counting instrument panel is fixedly mounted at the middle point of the top of the cylinder body, a driving cavity is formed in the cylinder body, a micro motor is fixedly mounted at the top of the inner wall of the driving cavity, a driving rotating shaft is fixedly connected onto an output shaft of the micro motor, and the bottom end of the driving rotating shaft sequentially penetrates through the driving cavity and the cylinder body from top to bottom and extends to the inner side of the cylinder;

the incrustation scale cleaning mechanism comprises a first connecting block and a second connecting block, the number of the first connecting block is two, the first connecting block is symmetrically arranged at the top of the inner wall of the barrel body, the number of the second connecting block is two, the second connecting block is symmetrically arranged at the bottom of the inner wall of the barrel body, rolling bearings are fixedly arranged on one opposite sides of the two first connecting blocks, a bidirectional screw rod is movably connected between the two rolling bearings, the surface of the bidirectional screw rod is symmetrically and threadedly connected with a moving ring, the two second connecting blocks are fixedly connected through a limiting cross rod, the limiting cross rod is movably connected with the two moving rings, the surface of the bidirectional screw rod is fixedly connected with a driven bevel gear which is matched with the driving bevel gear, and an incrustation scale scraper is fixedly.

Preferably, the bottom of the inner wall of the driving cavity is fixedly connected with a first sealing ring at a position corresponding to the driving rotating shaft, and the inner side of the first sealing ring is in contact with the surface of the driving rotating shaft.

Preferably, the top of the inner wall of the barrel body corresponds to the waterproof shell fixedly connected with the first connecting block, and one end of the bidirectional screw rod penetrates through the waterproof shell and extends to the outside of the waterproof shell to be movably connected with the bidirectional screw rod.

Preferably, the waterproof case is close to one side of the driven bevel gear and is fixedly connected with a second sealing ring at a position corresponding to the bidirectional screw, and the inner side of the second sealing ring is in contact with the surface of the bidirectional screw.

Preferably, the surfaces of the driving bevel gear, the bidirectional screw, the limiting cross bar and the driven bevel gear are coated with antirust coatings.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses when needing to clear up the accumulational incrustation scale of barrel inner wall, open micro motor, it is rotatory that the drive pivot drives the drive bevel gear, driven bevel gear with it meshing drives two-way screw rod and rotates under two antifriction bearing's connection, threaded connection is spacing through spacing horizontal pole for two shift rings on it, carry out the horizontal direction motion, and then utilize the incrustation scale doctor-bar that its outside set up to strike off the incrustation scale, the high differential pressure formula flowmeter of this measurement accuracy, structural design is reasonable, high durability and convenient use, can use its inner wall accumulational incrustation scale of back to the differential pressure formula flowmeter for a long time and clear away fast, and then guaranteed the measuring accuracy, and satisfy the user demand.

2. The utility model discloses a set up first sealing washer, prevent that liquid from causing the micro motor short circuit to damage through infiltration in the gap between drive pivot and the micro motor, through setting up the buckler, can protect antifriction bearing from the outside, prevent to arrange in liquid for a long time and cause the damage of rustting, through setting up the second sealing washer, can prevent effectively that liquid from permeating in the gap between two-way screw rod and the buckler.

Drawings

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

FIG. 2 is a cross-sectional view of the flowmeter body of the present invention in front elevation;

FIG. 3 is an enlarged view of a portion of A-A of FIG. 2 according to the present invention;

FIG. 4 is a sectional view of the scale removing mechanism of the present invention;

fig. 5 is a partial enlarged view of B-B in fig. 4 according to the present invention.

In the figure: the scale cleaning device comprises a flowmeter body 1, a cylinder 11, a flange 12, a counting instrument panel 13, a driving cavity 14, a micro motor 15, a driving rotating shaft 16, a driving bevel gear 17, a first sealing ring 18, a scale cleaning mechanism 2, a first connecting block 21, a second connecting block 22, a rolling bearing 23, a bidirectional screw 24, a moving ring 25, a limiting cross bar 26, a driven bevel gear 27, a scale scraper 28, a waterproof shell 29 and a second sealing ring 210.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, a differential pressure flowmeter with high measurement accuracy includes a flowmeter body 1 and a scale cleaning mechanism 2, the scale cleaning mechanism 2 is disposed in the flowmeter body 1, the flowmeter body 1 includes a cylinder 11, flange plates 12 are disposed on left and right sides of the cylinder 11, a counting instrument panel 13 is fixedly mounted at a midpoint of the top of the cylinder 11, a driving cavity 14 is formed in the cylinder 11, a micro motor 15 is fixedly mounted at the top of an inner wall of the driving cavity 14, a driving rotating shaft 16 is fixedly connected to an output shaft of the micro motor 15, a bottom end of the driving rotating shaft 16 sequentially penetrates through the driving cavity 14 and the cylinder 11 from top to bottom and extends to an inner side of the cylinder 11 and is fixedly connected with a driving bevel gear 17, a first sealing ring 18 is fixedly connected to a position corresponding to the driving rotating shaft 16 at the bottom of the inner wall of the driving cavity 14, and a surface.

The scale cleaning mechanism 2 comprises a first connecting block 21 and a second connecting block 22, the number of the first connecting block 21 is two, the first connecting blocks are symmetrically arranged at the top of the inner wall of the cylinder 11, the number of the second connecting blocks 22 is two, the second connecting blocks are symmetrically arranged at the bottom of the inner wall of the cylinder 11, rolling bearings 23 are fixedly arranged at the opposite sides of the two first connecting blocks 21, a two-way screw 24 is movably connected between the two rolling bearings 23, a waterproof shell 29 is fixedly connected at the top of the inner wall of the cylinder 11 corresponding to the position of the first connecting block 21, one end of the two-way screw 24 penetrates through the waterproof shell 29 and extends to the outside of the waterproof shell to be movably connected with the waterproof shell, a moving ring 25 is symmetrically and threadedly connected on the surface of the two-way screw 24, the two second connecting blocks 22 are fixedly connected through a limiting cross rod 26, the limiting cross rod 26 is movably connected with the two moving rings, the position of the waterproof shell 29 close to one side of the driven bevel gear 27 and corresponding to the two-way screw 24 is fixedly connected with a second sealing ring 210, the inner side of the second sealing ring 210 is contacted with the surface of the two-way screw 24, the surfaces of the driving bevel gear 17, the two-way screw 24, the limiting cross bar 26 and the driven bevel gear 27 are all coated with antirust coatings, the outer side of the moving ring 25 is fixedly connected with a scale scraping blade 28, through the arrangement of the first sealing ring 18, the liquid is prevented from permeating through a gap between the driving rotating shaft 16 and the micro motor 15 to cause short-circuit damage of the micro motor 15, through the arrangement of the waterproof shell 29, the rolling bearing 23 can be protected from the outside to prevent rusting and damage caused by being placed in the liquid for a long time, through the arrangement of the second sealing ring 210, the liquid can be effectively prevented from permeating through the gap between the, convenient to use can clear away its inner wall accumulational incrustation scale fast after using for a long time differential pressure type flowmeter, and then has guaranteed the measuring accuracy, satisfies the user demand.

When the scale scraper is used, the micro motor 15 is started, the driving rotating shaft 16 drives the driving bevel gear 17 to rotate, the driven bevel gear 27 meshed with the driving bevel gear drives the bidirectional screw 24 to rotate under the connection of the two rolling bearings 23, the two moving rings 25 in threaded connection with the driving bevel gear move horizontally through the limiting of the limiting cross rod 26, and then the scale scraper 28 arranged on the outer side of the moving rings is used for scraping scale.

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 differential pressure formula flowmeter that measurement accuracy is high, includes flowmeter body (1) and incrustation scale clearance mechanism (2), its characterized in that: the scale cleaning mechanism (2) is arranged in the flowmeter body (1), the flowmeter body (1) comprises a cylinder body (11), flange plates (12) are arranged on the left side and the right side of the cylinder body (11), a counting instrument panel (13) is fixedly mounted at the midpoint of the top of the cylinder body (11), a driving cavity (14) is formed in the cylinder body (11), a micro motor (15) is fixedly mounted at the top of the inner wall of the driving cavity (14), a driving rotating shaft (16) is fixedly connected to an output shaft of the micro motor (15), the bottom end of the driving rotating shaft (16) sequentially penetrates through the driving cavity (14) and the cylinder body (11) from top to bottom and extends to the inner side of the cylinder body (11) to be fixedly connected with a driving bevel gear (17);

the scale cleaning mechanism (2) comprises two first connecting blocks (21) and two second connecting blocks (22), the two first connecting blocks (21) are symmetrically arranged at the top of the inner wall of the barrel body (11), the two second connecting blocks (22) are symmetrically arranged at the bottom of the inner wall of the barrel body (11), rolling bearings (23) are fixedly arranged on the opposite sides of the two first connecting blocks (21), a bidirectional screw rod (24) is movably connected between the two rolling bearings (23), moving rings (25) are symmetrically and threadedly connected on the surface of the bidirectional screw rod (24), the two second connecting blocks (22) are fixedly connected through a limiting cross rod (26), the limiting cross rod (26) is movably connected with the two moving rings (25), and driven bevel gears (27) matched with the bidirectional screw rod (24) are fixedly connected on the surface of the bidirectional screw rod (24) and corresponding to the positions of the driving bevel gears (17), a scale scraping blade (28) is fixedly connected to the outer side of the moving ring (25).

2. A differential pressure flowmeter with high measurement accuracy as set forth in claim 1, wherein: the inner wall bottom of the driving cavity (14) is fixedly connected with a first sealing ring (18) corresponding to the driving rotating shaft (16), and the inner side of the first sealing ring (18) is in contact with the surface of the driving rotating shaft (16).

3. A differential pressure flowmeter with high measurement accuracy as set forth in claim 1, wherein: the top of the inner wall of the barrel body (11) corresponds to the position of the first connecting block (21) and is fixedly connected with a waterproof shell (29), and one end of the bidirectional screw rod (24) penetrates through the waterproof shell (29) and extends to the outside of the waterproof shell to be movably connected with the waterproof shell.

4. A differential pressure flowmeter with high measurement accuracy as set forth in claim 3, wherein: the waterproof shell (29) is close to one side of the driven bevel gear (27) and fixedly connected with a second sealing ring (210) in a position corresponding to the bidirectional screw (24), and the inner side of the second sealing ring (210) is in contact with the surface of the bidirectional screw (24).

5. A differential pressure flowmeter with high measurement accuracy as set forth in claim 1, wherein: the surfaces of the driving bevel gear (17), the two-way screw (24), the limiting cross rod (26) and the driven bevel gear (27) are coated with antirust coatings.