CN211602042U

CN211602042U - Hyperbolic streamline rectangular flowmeter

Info

Publication number: CN211602042U
Application number: CN202020594000.XU
Authority: CN
Inventors: 李文亮; 唐陈一郎; 卢锋
Original assignee: Yinchuan Rongshenwei Automatic Meter Factory Co ltd
Current assignee: Yinchuan Rongshenwei Automatic Meter Factory Co ltd
Priority date: 2020-04-20
Filing date: 2020-04-20
Publication date: 2020-09-29
Anticipated expiration: 2030-04-20

Abstract

The utility model discloses a hyperbolic streamline rectangular flowmeter, which belongs to the flowmeter field, and comprises a rectangular flowmeter main body, wherein the top of the rectangular flowmeter main body is respectively provided with a positive pressure-tapping pipe and a negative pressure-tapping pipe, both sides of the top of the positive pressure-tapping pipe and the negative pressure-tapping pipe are provided with slots, when in installation, a base is firstly placed on the ground, then an insertion rod of an upper plate is inserted into an insertion hole of a lower plate, thus the flowmeter can be supported, thereby the flowmeter does not need to be lifted when in installation, the installation is more convenient, the problem that the flowmeter needs to be supported before installation is solved, meanwhile, the height can be adjusted according to the installation height, when in adjustment, a limit pin is firstly extracted, then an auxiliary rod is lifted or contracted in a main sleeve, then the limit pin is inserted into a limit hole to complete the height adjustment, the practicability is strong, a spirit level meter is convenient for detecting whether the, the problem that installation dislocation can not be found in time is solved.

Description

Hyperbolic streamline rectangular flowmeter

Technical Field

The utility model relates to a flowmeter technical field specifically is a hyperbolic streamline shape rectangular flowmeter.

Background

The flowmeter is known by its english name flowmeter, which is defined by the national committee for the examination and determination of scientific and technical terms as: meters that indicate the measured flow rate and/or the total amount of fluid in a selected time interval. Briefly, a meter for measuring the flow of fluid in a pipe or open channel, commonly known in engineering as m3/h, can be divided into an instantaneous flow (FlowRate), i.e. the amount of fluid flowing through an effective cross section of a closed pipe or open channel per unit time, and a cumulative flow (TotalFlow), i.e. the amount of fluid flowing through the effective cross section of the closed pipe or open channel per unit time, and can be gas, liquid or solid.

The prior art discloses application number is CN 201420294933.1's diffusion tubular rectangular flowmeter, including a survey buret and survey buret both ends welded body flange, the welding has a pair of pressure flange, its characterized in that on the axial direction of surveying the buret: a trapezoidal throttling element is arranged in the measuring tube below the pressure measuring flange; the cross section of the trapezoid throttling element is in a segmental shape, the front projection of the trapezoid throttling element is in a reversed trapezoid shape with a large upper part and a small lower part, two acute angles of the trapezoid are respectively 15-60 degrees and 7-30 degrees, and a negative pressure sampling hole is formed in the center of the throat part of the trapezoid throttling element; the utility model discloses unique structure, precision height, linear good, long-term job stabilization nature and reliability are high, long service life, pressure recovery are fast, permanent loss of pressure is little, but this flowmeter's the structure of getting presses adopts the flange to connect, consequently need dismantle a plurality of fixing bolt when dismantling for it is very troublesome to dismantle, and simultaneously, the flowmeter needs a manual work personnel to hold in the palm when the installation, and a manual screw bolt causes the flowmeter to fall to decrease easily when careless a little.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hyperbolic streamline shape rectangular flowmeter to it gets the inconvenient dismantlement of pressure structure and has been the problem of the not convenient for fixed mounting of flowmeter to provide in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a hyperbolic streamline rectangular flowmeter comprises a rectangular flowmeter body, wherein a positive pressure-tapping pipe and a negative pressure-tapping pipe are respectively arranged at the top of the rectangular flowmeter body, slots are respectively formed in two sides of the tops of the positive pressure-tapping pipe and the negative pressure-tapping pipe, a connecting disc is fixed inside the slots through an insert, a mounting groove is formed in one side of the insert, a limiting groove is formed in one side of the inside of the slots, a limiting block is fixed inside the mounting groove through a first spring, one side of the limiting block extends into the limiting groove, mounting cavities are respectively formed in two sides of the inside of the positive pressure-tapping pipe and the inside of the negative pressure-tapping pipe, extrusion rods extending into the limiting grooves penetrate through two sides of the positive pressure-tapping pipe and the negative pressure-tapping pipe, a second spring is sleeved on the outer surface of each extrusion rod, an upper disc is arranged at the bottom of the rectangular flowmeter body, and a lower disc, jacks are formed in two sides of the top of the lower disc, an inserting rod extending into the jacks is fixed at the bottom of the upper disc, an auxiliary rod is arranged at the bottom of the lower disc, a main sleeve and a limiting hole are respectively formed in the outer surface of the auxiliary rod, a limiting pin extending into the limiting hole penetrates through the outer surface of the main sleeve, and a base is arranged at the bottom of the main sleeve.

Preferably, the outer surface of the rectangular flowmeter body is provided with a level gauge.

Preferably, one end of the extrusion rod, which is far away from the limiting block, is fixed with an extrusion plate.

Preferably, the upper disc and the lower disc are detachably arranged.

Preferably, both sides of the rectangular flowmeter main body are provided with connecting flanges.

Preferably, the limiting block is matched with the limiting groove.

Preferably, the limiting holes are arranged in a plurality, and the limiting holes are arranged at equal intervals from top to bottom.

Compared with the prior art, the beneficial effects of the utility model are that: the hyperbolic streamline rectangular flowmeter is provided with a slot, an insert, a limiting groove, an extrusion rod, a first spring, a limiting block and a second spring, when a pressure taking structure is disassembled and replaced, a worker applies pressure to an extrusion plate to further enable the second spring to contract, the extrusion rod presses the limiting block, so that the first spring contracts, the limiting block is separated from the limiting groove, the worker can directly pull the insert out of the slot, the disassembly is more convenient, and the time is saved; this flowmeter still is provided with the main sleeve simultaneously, the auxiliary rod, the spacer pin, spacing hole and spirit level, when the installation, place the base on ground earlier, then insert the inserted bar of hanging wall in the jack of lower wall, can support the flowmeter like this, thereby need not lift the support with the flowmeter when the installation, it is more convenient to make the installation, the problem of the flowmeter need support before the installation has been solved, still can adjust according to the height of installation simultaneously, when adjusting, extract the spacer pin earlier, then make the auxiliary rod go up and down or shrink in the main sleeve, insert the spacing downthehole height control that can accomplish with the spacer pin again after that, therefore, the clothes hanger is strong in practicability, whether the position that the spirit level was convenient for detect the flowmeter installation keeps the level, the problem that the installation can not in time be discover is solved and misplaced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the flange of the present invention;

FIG. 3 is a schematic view of the lower plate structure of the present invention;

fig. 4 is a schematic diagram of a partially enlarged structure of the present invention a.

In the figure: 1. a rectangular flowmeter body; 2. a positive pressure tapping pipe; 3. a negative pressure tapping pipe; 4. a connecting flange; 5. a connecting disc; 6. inserting a rod; 7. hanging the plate; 8. a level gauge; 9. a slot; 10. mounting grooves; 11. a first spring; 12. a jack; 13. a limiting block; 14. a plug-in; 15. a mounting cavity; 16. a second spring; 17. an extrusion stem; 18. a pressing plate; 19. a main sleeve; 20. an auxiliary rod; 21. a limiting hole; 22. a spacing pin; 23. a bottom wall; 24. a base; 25. a limiting groove.

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.

In the present invention, unless otherwise expressly stated or limited, the terms "disposed," "mounted," "connected," "fixed," "sleeved," and the like are to be construed broadly, e.g., as either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; the two elements may be connected directly or indirectly through an intermediate medium, and the two elements may be connected internally or in an interaction relationship, and a person skilled in the art can understand the specific meaning of the above terms in the present invention according to specific situations.

Referring to fig. 1-4, the present invention provides a technical solution: a hyperbolic streamline rectangular flowmeter comprises a rectangular flowmeter body 1, a positive pressure taking pipe 2, a negative pressure taking pipe 3, a connecting flange 4, a connecting disc 5, an inserting rod 6, an upper disc 7, a level gauge 8, a slot 9, a mounting groove 10, a first spring 11, an inserting hole 12, a limiting block 13, a plug-in 14, a mounting cavity 15, a second spring 16, an extruding rod 17, an extruding plate 18, a main sleeve 19, an auxiliary rod 20, a limiting hole 21, a limiting pin 22, a lower disc 23, a base 24 and a limiting groove 25, wherein the positive pressure taking pipe 2 and the negative pressure taking pipe 3 are respectively arranged at the top of the rectangular flowmeter body 1, the slot 9 is respectively arranged at two sides of the top of the positive pressure taking pipe 2 and the negative pressure taking pipe 3, the connecting disc 5 is fixed inside the slot 9 through the plug-in 14, the mounting groove 10 is arranged at one side of the plug-in 14, the limiting groove 25 is arranged at one side of the inside of the slot 9, and one side of the limiting block 13 extends to the inside of the limiting groove 25, the two sides of the inside of the positive pressure tapping pipe 2 and the inside of the negative pressure tapping pipe 3 are both provided with mounting cavities 15, the two sides of the positive pressure tapping pipe 2 and the two sides of the negative pressure tapping pipe 3 are both penetrated by an extrusion rod 17 extending to the inside of the limiting groove 25, a second spring 16 is sleeved on the outer surface of the extrusion rod 17, the bottom of the rectangular flowmeter main body 1 is provided with an upper disc 7, the bottom of the upper disc 7 is provided with a lower disc 23, the two sides of the top of the lower disc 23 are provided with jacks 12, the bottom of the upper disc 7 is fixed with an insertion rod 6 extending to the inside of the jack 12, the bottom of the lower disc 23 is provided with an auxiliary rod 20, the outer surface of the auxiliary rod 20 is respectively provided with a main sleeve 19 and a limiting hole 21, the outer surface of the main sleeve 19 is penetrated by a limiting pin 22 extending.

Referring to fig. 1 and 4, a level gauge 8 is arranged on the outer surface of a rectangular flowmeter body 1, so that whether the installation position of the flowmeter is kept horizontal or not is conveniently detected, the problem that installation dislocation cannot be found in time is solved, and an extrusion plate 18 is fixed at one end, far away from a limiting block 13, of an extrusion rod 17, so that the extrusion rod 17 is conveniently pressed.

Referring to fig. 1-3, the upper plate 7 and the lower plate 23 are detachable for easy carrying, and the connecting flanges 4 are disposed on both sides of the rectangular flowmeter body 1 for easy installation.

Referring to fig. 1 and 4, the limiting block 13 is adapted to the limiting groove 25 for limiting and fixing the pressure-taking structure, and the plurality of limiting holes 21 are arranged from top to bottom at equal intervals for adjusting the installation height.

The working principle is as follows: firstly, a worker checks whether the flowmeter is intact, when the flowmeter is installed, the base 24 is firstly placed on the ground, then the inserting rod 6 of the upper disc 7 is inserted into the inserting hole 12 of the lower disc 23, so that the rectangular flowmeter main body 1 can be supported, the flowmeter does not need to be lifted and supported when the flowmeter is installed, then the flowmeter is installed through the connecting flange 4, meanwhile, the height can be adjusted according to the installation height, when the flowmeter is adjusted, the limiting pin 22 is firstly pulled out, then the auxiliary rod 20 is lifted or contracted in the main sleeve 19, then the limiting pin 22 is inserted into the limiting hole 21 to complete height adjustment, the practicability is strong, the spirit level 8 is convenient to detect whether the installation position of the flowmeter is kept horizontal, when the pressure taking structure is disassembled and replaced, the worker presses the extrusion plate 18, further the second spring 16 is contracted, and the extrusion rod 17 presses the limiting block 13, therefore, the first spring 11 is contracted, the limit block 13 is separated from the limit groove 25, and the worker can directly pull the plug-in 14 out of the slot 9.

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 hyperbolic streamline rectangle flowmeter, includes rectangle flowmeter main part (1), its characterized in that: the rectangular flowmeter is characterized in that a positive pressure pipe (2) and a negative pressure pipe (3) are respectively arranged at the top of the rectangular flowmeter main body (1), slots (9) are respectively formed in two sides of the top of the positive pressure pipe (2) and the top of the negative pressure pipe (3), a connecting disc (5) is fixed inside the slots (9) through inserts (14), a mounting groove (10) is formed in one side of each insert (14), a limiting groove (25) is formed in one side of the inside of each slot (9), a limiting block (13) is fixed inside each mounting groove (10) through a first spring (11), one side of each limiting block (13) extends into the corresponding limiting groove (25), mounting cavities (15) are respectively formed in two sides of the inside of the positive pressure pipe (2) and the inside of the negative pressure pipe (3), extrusion rods (17) extending into the corresponding limiting grooves (25) penetrate through two sides of the positive pressure pipe (2) and the negative pressure pipe (3), the outer surface of extrusion pole (17) has cup jointed second spring (16), the bottom of rectangular flowmeter main part (1) is provided with hanging wall (7), the bottom of hanging wall (7) is provided with lower wall (23), jack (12) have been seted up to the top both sides of lower wall (23), the bottom of hanging wall (7) is fixed with and extends to inside inserted bar (6) of jack (12), the bottom of lower wall (23) is provided with auxiliary rod (20), the surface of auxiliary rod (20) is provided with main sleeve (19) and spacing hole (21) respectively, the surface of main sleeve (19) runs through has the spacer pin (22) that extend to spacing hole (21) inside, the bottom of main sleeve (19) is provided with base (24).

2. The hyperbolic streamline rectangular flowmeter according to claim 1, wherein: the outer surface of the rectangular flowmeter main body (1) is provided with a level gauge (8).

3. The hyperbolic streamline rectangular flowmeter according to claim 1, wherein: and an extrusion plate (18) is fixed at one end of the extrusion rod (17) far away from the limiting block (13).

4. The hyperbolic streamline rectangular flowmeter according to claim 1, wherein: the upper disc (7) and the lower disc (23) are arranged in a detachable mode.

5. The hyperbolic streamline rectangular flowmeter according to claim 1, wherein: and connecting flanges (4) are arranged on two sides of the rectangular flowmeter main body (1).

6. The hyperbolic streamline rectangular flowmeter according to claim 1, wherein: the limiting block (13) is matched with the limiting groove (25).

7. The hyperbolic streamline rectangular flowmeter according to claim 1, wherein: the limiting holes (21) are arranged in a plurality, and the limiting holes (21) are arranged in an equidistance from top to bottom.