CN212007348U

CN212007348U - Vortex street flowmeter

Info

Publication number: CN212007348U
Application number: CN202021051882.1U
Authority: CN
Inventors: 刘卫华
Original assignee: Tianjin Haikong Technology Co ltd
Current assignee: Tianjin Haikong Technology Co ltd
Priority date: 2020-06-10
Filing date: 2020-06-10
Publication date: 2020-11-24
Anticipated expiration: 2030-06-10

Abstract

The utility model discloses a vortex shedding flowmeter, which comprises a display screen, a cleaning mechanism and a connecting mechanism, wherein the cleaning mechanism is positioned on the outer surface of the display screen and comprises a cover plate, and one end of the outer surface of the cover plate is fixedly connected with a first bearing; the cleaning mechanism comprising the cover plate, the safety cover, the connecting bearing, the driving gear and the driven gear can protect the display screen to a certain extent and avoid dust adsorption, the cover plate on one side of the display screen of the equipment can be cleaned before the equipment is used, the operation can be completed through opening and closing of the cover plate, and the cleaning mechanism is convenient and quick; through using the coupling mechanism who contains rotatory piece, torsional spring, draw-in groove, fixture block and bolt, can be when equipment is connected with the pipeline under test, directly fix spacingly through bolt and rotatory piece to connecting, tighten the installation of other bolts that will correspond again, convenient operation practices thrift the time of installation, improves work efficiency.

Description

Vortex street flowmeter

Technical Field

The utility model belongs to the technical field of vortex flowmeter, concretely relates to vortex flowmeter.

Background

The vortex shedding flowmeter is a volume flowmeter which is produced according to the Karman vortex shedding principle and is used for measuring the volume flow, standard condition volume flow or mass flow of gas, steam or liquid. The flow meter is mainly used for measuring the flow of industrial pipeline medium fluid, such as various media of gas, liquid, steam and the like. Its advantages are low pressure loss, wide range of measuring range, high precision and no influence from fluid density, pressure, temp and viscosity. No movable mechanical parts are needed, so the reliability is high and the maintenance amount is small. The instrument parameters can be stable for a long time. The vortex flowmeter adopts a piezoelectric stress sensor, has high reliability and can work within the working temperature range of-20 ℃ to +250 ℃. The analog standard signal and the digital pulse signal are output, so that the digital pulse signal measuring instrument is easily matched with a computer and other digital systems, and is an advanced and ideal measuring instrument.

The existing vortex street flowmeter has the advantages that dust is easily accumulated on a part of data display screens of the existing vortex street flowmeter in the using process, observation of follow-up data is influenced, equipment installation is not convenient enough, and butt joint is inconvenient during pipeline connection, so that the vortex street flowmeter is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a vortex street flowmeter to the vortex street flowmeter who proposes among the solution above-mentioned background art, its partial data display screen accumulates the dust easily in the use, influences follow-up data's observation, and equipment fixing is convenient inadequately, the problem of inconvenient butt joint during the connecting tube.

In order to achieve the above object, the utility model provides a following technical scheme: a vortex shedding flowmeter comprises a display screen, a cleaning mechanism and a connecting mechanism, wherein the cleaning mechanism is positioned on the outer surface of the display screen, the cleaning mechanism comprises a cover plate, one end of the outer surface of the cover plate is fixedly connected with a first bearing, a fixed shaft is fixedly connected inside the first bearing, second fixed blocks are movably sleeved at two ends of the outer surface of the fixed shaft, one end of the fixed shaft is provided with a driving gear, one side of the driving gear is engaged with a driven gear, the inner surface of the driven gear is fixedly connected with a rotating shaft, the middle part of the outer surface of the rotating shaft is fixedly connected with a second bearing, a rocker arm is fixedly arranged on one side of the second bearing, a brush is arranged on the lower surface of the rocker arm, first fixed blocks are movably sleeved at two ends of the rotating shaft, and a safety cover is fixedly connected to one side of each first fixed block.

Preferably, the lower surface of display screen is provided with the connecting block, the one end fixedly connected with connecting pipe of connecting block, one side of connecting pipe is provided with the interface.

Preferably, the connecting mechanism is located inside the interface, the connecting mechanism comprises a rotating block and a bolt, the outer surface of the rotating block is movably connected with a torsion spring, a clamping groove is formed in the upper portion of the rotating block, and a clamping block is fixedly mounted at one end of the outer surface of the bolt.

Preferably, the rotating block and the interface are movably connected through a torsion spring, steel balls are arranged at two ends of the inner surface of the interface, the rotating block and the steel balls are mutually attached, a rotating groove is formed in the rotating block, a moving block is arranged on one side of the rotating block, grooves are formed in two sides of the interface, and the moving block is located in the grooves.

Preferably, one end of the interface is provided with a hole, the diameter of the hole is equal to that of the clamping groove, and the diameter of the rotating block is 1.2 times that of the clamping groove.

Preferably, the cover plate is fixedly connected with the fixed shaft through a first bearing, and the first bearing is movably connected with the second fixed block through the fixed shaft.

Preferably, the driven gear and the first fixed block are movably connected through a rotating shaft, a groove is formed in the outer surface of the safety cover, and the width of the groove is equal to that of the rocker arm.

Preferably, the brush and the second bearing are fixedly connected through a rocker arm, and the second bearing and the first fixed block are movably connected through a rotating shaft.

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

1. through the clearance mechanism who contains apron, safety cover, connection bearing, driving gear and driven gear, can carry out certain protection to the display screen to avoid the absorption of dust, can also clear up the apron of equipment display screen one side before the equipment uses, can accomplish the operation through opening and shutting of apron, convenient and fast.

2. Through using the coupling mechanism who contains rotatory piece, torsional spring, draw-in groove, fixture block and bolt, can be when equipment is connected with the pipeline under test, directly fix spacingly through bolt and rotatory piece to connecting, tighten the installation of other bolts that will correspond again, convenient operation practices thrift the time of installation, improves work efficiency.

Drawings

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

FIG. 2 is a schematic view of the cover plate structure of the present invention;

FIG. 3 is a schematic side sectional view of the bearing structure of the present invention;

FIG. 4 is a schematic cross-sectional view of the rotary block of the present invention;

fig. 5 is a schematic view of the bolt structure of the present invention;

fig. 6 is a schematic diagram of the side view structure of the interface of the present invention.

In the figure: 1. a display screen; 2. connecting blocks; 3. a connecting pipe; 4. an interface; 5. a cover plate; 6. a safety cover; 7. a second bearing; 8. a first fixed block; 9. a driven gear; 10. a driving gear; 11. a rotating shaft; 12. a rocker arm; 13. a brush; 14. a first bearing; 15. a second fixed block; 16. rotating the block; 17. a torsion spring; 18. a card slot; 19. a clamping block; 20. a bolt; 21. and fixing the shaft.

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. 1-6, the present invention provides a technical solution: a vortex shedding flowmeter comprises a display screen 1, a cleaning mechanism and a connecting mechanism, wherein the cleaning mechanism is positioned on the outer surface of the display screen 1 and comprises a cover plate 5, one end of the outer surface of the cover plate 5 is fixedly connected with a first bearing 14, a fixed shaft 21 is fixedly connected inside the first bearing 14, two ends of the outer surface of the fixed shaft 21 are movably sleeved with second fixed blocks 15, one end of the fixed shaft 21 is provided with a driving gear 10, one side of the driving gear 10 is engaged and connected with a driven gear 9, the inner surface of the driven gear 9 is fixedly connected with a rotating shaft 11, the middle part of the outer surface of the rotating shaft 11 is fixedly connected with a second bearing 7, one side of the second bearing 7 is fixedly provided with a rocker arm 12, the lower surface of the rocker arm 12 is provided with a brush 13, two ends of the rotating shaft 11 are movably sleeved with, in order to ensure the normal use of the cleaning mechanism.

In order to ensure the normal operation of the device, in this embodiment, preferably, the lower surface of the display screen 1 is provided with a connecting block 2, one end of the connecting block 2 is fixedly connected with a connecting pipe 3, and one side of the connecting pipe 3 is provided with a connector 4.

In order to ensure the normal use of the connection mechanism, in this embodiment, preferably, the connection mechanism is located inside the interface 4, the connection mechanism includes a rotating block 16 and a bolt 20, the outer surface of the rotating block 16 is movably connected with a torsion spring 17, a clamping groove 18 is arranged above the rotating block 16, and one end of the outer surface of the bolt 20 is fixedly provided with a clamping block 19.

In order to ensure the control of the rotating block 16, in this embodiment, preferably, the rotating block 16 and the interface 4 are movably connected through a torsion spring 17, steel balls are disposed at two ends of an inner surface of the interface 4, the rotating block 16 and the steel balls are mutually attached, a rotating groove is formed in the rotating block 16, a moving block is disposed on one side of the rotating block 16, grooves are formed in two sides of the interface 4, and the moving block is located in the groove.

In order to facilitate the movement of the latch 19, in this embodiment, it is preferable that one end of the interface 4 is provided with a hole, the diameter of the hole is equal to the diameter of the latch 18, and the diameter of the rotary block 16 is 1.2 times of the diameter of the latch 18.

In order to ensure the transmission of power, in the embodiment, it is preferable that the cover plate 5 is fixedly connected with the fixed shaft 21 through the first bearing 14, and the first bearing 14 and the second fixed block 15 are movably connected through the fixed shaft 21.

In order to ensure the movement of the rocker arm 12, in the embodiment, it is preferable that the driven gear 9 and the first fixed block 8 are movably connected through a rotating shaft 11, and the outer surface of the safety cover 6 is provided with a groove, and the width of the groove is equal to the width of the rocker arm 12.

In order to realize the function of the brush 13, in the embodiment, preferably, the brush 13 is fixedly connected with the second bearing 7 through the rocker arm 12, and the second bearing 7 is movably connected with the first fixed block 8 through the rotating shaft 11.

The utility model discloses a theory of operation and use flow: when the cleaning mechanism is used, the cover plate 5 is moved upwards to drive the first bearing 14 and the fixed shaft 21 to rotate in the second fixed block 15, the driving gear 10 rotates along with the second fixed block to drive the driven gear 9 engaged with the driving gear to rotate, then the driven gear 9 drives the rotating shaft 11 and the second bearing 7 to rotate in the first fixed block 8, the rocker arm 12 moves along with the second bearing 7 in the same direction to drive the brush 13 to be attached to the cover plate 5 to move on the surface of the cover plate 5, the brush 13 is driven to return to the original position in reverse direction when the cover plate 5 is put down, the cleaning mechanism can be used, when the connecting mechanism is used, the two bolts 20 are fixed on a pipeline to be connected, then the clamping block 19 is aligned with the groove in the clamping groove 18 and pushed towards the inner part of the clamping groove, then enters the rotating block 16, at the moment under the action of the rotating groove in the rotating block 16, the fixture block 19 drives the rotating block 16 to rotate, the torsion spring 17 bears force, when the fixture block 19 penetrates through the rotating block 16, the rotating block 16 returns to the original position under the action of the force of the torsion spring 17, the fixture block 19 is clamped due to the fact that the groove in the rotating block 16 does not correspond to the fixture block 19, the connecting mechanism can be used, the moving block fixedly connected with the rotating block 16 is shifted during disassembly, the groove in the moving block is aligned with the fixture block 19, and the reverse operation can be achieved.

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 vortex shedding flowmeter, includes display screen (1), clearance mechanism and coupling mechanism, its characterized in that: the cleaning mechanism is located on the outer surface of the display screen (1), the cleaning mechanism comprises a cover plate (5), a first bearing (14) is fixedly connected to one end of the outer surface of the cover plate (5), a fixed shaft (21) is fixedly connected to the inside of the first bearing (14), a second fixed block (15) is movably sleeved at two ends of the outer surface of the fixed shaft (21), a driving gear (10) is arranged at one end of the fixed shaft (21), a driven gear (9) is meshed and connected to one side of the driving gear (10), a rotating shaft (11) is fixedly connected to the inner surface of the driven gear (9), a second bearing (7) is fixedly connected to the middle of the outer surface of the rotating shaft (11), a rocker arm (12) is fixedly mounted on one side of the second bearing (7), a brush (13) is arranged on the lower surface of the rocker arm (12), and first fixed blocks (8) are movably sleeved at, one side of the first fixing block (8) is fixedly connected with a safety cover (6).

2. The vortex shedding flowmeter of claim 1, wherein: the lower surface of display screen (1) is provided with connecting block (2), the one end fixedly connected with connecting pipe (3) of connecting block (2), one side of connecting pipe (3) is provided with interface (4).

3. The vortex shedding flowmeter of claim 2, wherein: coupling mechanism is located the inside of interface (4), coupling mechanism includes rotatory piece (16) and bolt (20), the surface swing joint of rotatory piece (16) has torsional spring (17), the top of rotatory piece (16) is provided with draw-in groove (18), bolt (20) surface one end fixed mounting has fixture block (19).

4. A vortex shedding flowmeter according to claim 3, wherein: the connector is characterized in that the rotating block (16) is movably connected with the connector (4) through a torsion spring (17), steel balls are arranged at two ends of the inner surface of the connector (4), the rotating block (16) is mutually attached to the steel balls, a rotating groove is formed in the rotating block (16), a moving block is arranged on one side of the rotating block (16), grooves are formed in two sides of the connector (4), and the moving block is located in the grooves.

5. A vortex shedding flowmeter according to claim 3, wherein: one end of the interface (4) is provided with a hole, the diameter of the hole is equal to that of the clamping groove (18), and the diameter of the rotating block (16) is 1.2 times that of the clamping groove (18).

6. The vortex shedding flowmeter of claim 1, wherein: the cover plate (5) is fixedly connected with the fixed shaft (21) through a first bearing (14), and the first bearing (14) is movably connected with the second fixed block (15) through the fixed shaft (21).

7. The vortex shedding flowmeter of claim 1, wherein: the driven gear (9) is movably connected with the first fixed block (8) through a rotating shaft (11), a groove is formed in the outer surface of the safety cover (6), and the width of the groove is equal to that of the rocker arm (12).

8. The vortex shedding flowmeter of claim 1, wherein: the brush (13) is fixedly connected with the second bearing (7) through a rocker arm (12), and the second bearing (7) is movably connected with the first fixed block (8) through a rotating shaft (11).