CN115789295A - Flow meter and water separator - Google Patents

Abstract

The invention discloses a flowmeter and a water separator, wherein the flowmeter comprises a shell, a valve core main rod and a measuring rod, and the shell is provided with a first inlet and a second inlet; the valve core main rod is provided with a connecting channel and is rotationally arranged in the shell so as to control the connection/disconnection between the connecting channel and the first inlet and the second inlet under the driving of the valve core main rod; the measuring rod is axially and slidably arranged in the valve core main rod, wherein the measuring rod is provided with a stress ring, the stress ring is arranged in the connecting channel, and a medium led into the connecting channel can act on the stress ring so as to drive the measuring rod to axially slide relative to the valve core main rod and measure the flow of the medium passing through the connecting channel. The flowmeter is realized by only driving the valve core main rod to rotate when being started, not only is the operation simple and convenient, but also the height of the valve core main rod cannot be changed, so that the use of the flowmeter is not influenced by the installation space of the flowmeter, and the flowmeter has the effect of improving the use range of the flowmeter.

Description

Flow meter and water separator

Technical Field

The invention belongs to the technical field related to flow control, and particularly relates to a flowmeter and a water separator.

Background

The water distributor and collector is used in water system and is used to connect water supply and return devices of heating pipes. The water separator applied to the floor heating system is mainly responsible for opening and closing the water flow in a floor heating loop, when water in the gas boiler flows into the filter through the main pipeline to separate impurities, the water is then distributed to the loop in a balanced mode through the branch of the water separator, and the water returns to the water collecting return main lever after heat exchange and then flows into the heating system through the water return port.

The flowmeter is usually installed on different water distribution main pipes of the water distributor, so that circulating water in the water distribution main pipes flows into the branch circulating pipelines through flow regulation of the flowmeter, the flowmeter can regulate and observe the flow in the branch circulating pipelines, and opening and closing of the branch circulating pipelines can be controlled. At present, the regulation mode of the flowmeter during operation that current is applied to in the water knockout drum adopts spiral rising and decline to adjust, and the flowmeter need rotate 3 ~ 4 circles to the case usually when opening completely just can accomplish, not only controls loaded down with trivial details, in order to satisfy the high rising of during operation case moreover, requires the flowmeter to leave certain space when the installation, can cause the restriction to the application place of flowmeter like this.

Disclosure of Invention

In view of the above, it is desirable to provide a flow meter and a water separator for solving the above technical problems.

A flow meter for use in a water separator, the flow meter comprising:

the device comprises a shell, a first inlet and a second inlet are formed in the shell;

the valve core main rod is provided with a connecting channel and is rotationally arranged in the shell so as to control the connection/disconnection between the connecting channel and the first inlet and between the connecting channel and the second inlet under the driving of the valve core main rod; and

the measuring stick, the measuring stick axially sliding install in the case mobile jib, wherein, be equipped with the atress ring on the measuring stick, the atress ring is set up in the interface channel, and leading-in extremely medium in the interface channel can act on the atress ring, in order to order about the measuring stick does relatively the axial slip of case mobile jib, and measure the medium is via flow during the interface channel.

In this application, case mobile jib rotationally installs to the casing in to the medium realizes making relative case mobile jib endwise slip's drive to the measuring stick leading-in to the interior medium of connecting channel on the case mobile jib, make this flowmeter only need rotate through driving about the case mobile jib when opening and realize, not only easy and simple to handle, the height of case mobile jib can not change when this flowmeter opens moreover, can make the use of this flowmeter not receive the influence of flowmeter installation space like this, and then has the effect that improves this flowmeter application range.

In one embodiment, a first connecting hole and a second connecting hole are formed in the rod wall of the valve core main rod, the first connecting hole is matched with the first inlet, and the second connecting hole is matched with the second inlet;

the first inlet is communicated with the connecting channel through the first connecting hole, and the second inlet is communicated with the connecting channel through the second connecting hole.

It can be understood that the communication between the connection channel and the first inlet and the second inlet is realized by the structural arrangement of the first connection hole and the second connection hole on the main rod of the valve core.

In one embodiment, a first sealing ring and a second sealing ring are arranged on the valve core main rod, and the first sealing ring and the second sealing ring are arranged between the valve core main rod and the shell, wherein the first sealing ring and the first connecting hole are arranged at intervals along the circumferential direction of the valve core main rod, and the second sealing ring and the second connecting hole are arranged at intervals along the circumferential direction of the valve core main rod;

the first sealing ring and the second sealing ring can be deformed under pressure so as to simultaneously seal the corresponding first inlet and the second inlet.

It can be understood that, through the structural arrangement of the first sealing ring and the second sealing ring, the use requirement of flow control between the first inlet and the second inlet is realized by controlling the rotation angle of the valve core main rod when the flowmeter works.

In one embodiment, the flowmeter further comprises a positioning part, an arc-shaped groove is formed in the valve core main rod, and the arc-shaped groove and the positioning part are arranged correspondingly;

the positioning piece penetrates through the shell and extends into the corresponding arc-shaped groove so as to axially limit the valve core main rod to the shell.

It can be understood that the rotating connection between the main rod of the valve core and the housing is realized by the structural arrangement of the positioning piece and the cooperation between the positioning piece and the arc-shaped groove.

In one embodiment, the first inlet and/or the second inlet are provided in an elliptical configuration.

It can be understood that, by providing the first inlet and/or the second inlet with an oval structure, the diameter of the oval first inlet and/or the second inlet is larger than that of the round inlet, so that the first inlet and/or the second inlet can be prevented from being blocked by sand or dirt doped in the medium.

In one embodiment, the flowmeter further includes a third sealing ring and a fourth sealing ring, which are disposed between the main valve element rod and the casing and located at two outer sides of the first inlet and the second inlet, and are used for assembling and sealing the main valve element rod and the casing.

It can be understood that, by the structural arrangement of the first sealing ring and the fourth sealing ring, the assembly sealing between the main rod of the valve core and the shell is realized.

In one embodiment, the force ring has a force surface, the planar direction of which is the same as the radial direction of the measuring rod.

It can be understood that, by setting the plane direction of the force-bearing surface on the force-bearing ring to be the same as the radial direction of the measuring rod, the contact area of the force-bearing ring when contacting the medium introduced into the connecting channel can be increased, so that the medium can be pushed to the measuring rod by the force-bearing ring in an axial movement.

In one embodiment, the measuring rod is further provided with an indicating ring, and the measuring rod can drive the indicating ring to axially move relative to the valve core main rod;

the measuring rod is further sleeved with an elastic piece, and two ends of the elastic piece are respectively abutted against the indicating ring and the valve core main rod and used for driving the measuring rod to elastically reset.

It can be understood that through the structural arrangement of the elastic part, the elastic resetting of the measuring rod can be realized by utilizing the structural characteristics of the elastic part, so that the use requirement of the flowmeter for repeatedly adjusting the flow rate is met.

In one embodiment, the flowmeter further comprises a metering cover, wherein the metering cover is sleeved on the measuring rod and fixedly connected with the main valve core rod;

the metering cover is marked with flow scales, and the flow scales can be matched with the indicating ring to reflect the flow of the medium.

It can be understood that the measuring rod is sleeved with the measuring cover and is fixedly connected with the main rod of the valve core, so that external dust can be prevented from entering the flowmeter, and the normal use of the flowmeter is ensured; meanwhile, the flow scale on the metering cover can be matched with the indicating ring, and the function of acquiring the flow value of the medium passing through the flow meter is achieved.

The application also claims a water knockout drum, including the water knockout drum main part, and above-mentioned arbitrary flowmeter, the water knockout drum main part has the water diversion and is responsible for, the water diversion be responsible for with the flowmeter corresponds the setting, just the flowmeter install in corresponding the water diversion is responsible for on.

In this application, through the structural setting of above-mentioned flowmeter, be convenient for to the flow adjustment of water knockout drum main part during operation, and do not need extra space by the regulation of flowmeter, and then have the effect that improves this water knockout drum application range.

Due to the application of the technical scheme, compared with the prior art, the application has the following beneficial effects:

the utility model provides a flowmeter and water knockout drum, case mobile jib is installed to the casing rotatoryly, and the drive of relative case mobile jib endwise slip is done to the measuring stick to leading-in to the interior medium of the last connecting channel of case mobile jib, make this flowmeter only need rotate through the case mobile jib of driving about when opening and realize, and is not only easy and simple to handle, and the height of case mobile jib can not change when this flowmeter opens moreover, can make the use of this flowmeter not influenced by flowmeter installation space like this, and then has the effect that improves this flowmeter application range.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic block diagram of a flow meter according to an embodiment of the present application;

FIG. 2 is a cross-sectional view of a flow meter provided by an embodiment of the present application;

FIG. 3 is a schematic structural view of a housing according to the present application;

FIG. 4 is a schematic structural view of a main shaft of a valve core in the present application;

fig. 5 is a schematic structural diagram of the measuring rod in the present application.

Reference numerals: 100. a flow meter; 10. a housing; 11. a first inlet; 12. a second inlet; 13. a positioning member; 131. positioning pins; 14. a threaded connection; 20. a valve core main rod; 201. a pole wall; 21. a connecting channel; 22. an arc-shaped slot; 23. a first connection hole; 24. a second connection hole; 30. a measuring rod; 31. a stress ring; 311. a stress surface; 32. an indicator ring; 33. an elastic member; 40. a metering cap; 41. flow rate scales; 50. a metering cover outer sleeve; 101. a first seal ring; 102. a second seal ring; 103. a third seal ring; 104. a fourth seal ring; 105. a fifth seal ring; 106. and a sixth sealing ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below 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. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

It will be understood that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The flow meter 100 claimed in the present application is applied to a water separator to function as a water collector in the water separator; the water separator is particularly applied to a ground heating water system.

The water separator comprises a water separator body and a flowmeter 100, the water separator body is provided with a water separation main pipe, the water separation main pipe is arranged corresponding to the flowmeter 100, and the flowmeter 100 is arranged on the corresponding water separation main pipe.

As shown in fig. 1 and 2, a flow meter 100 provided in an embodiment of the present application includes a housing 10, a main valve core rod 20 and a measuring rod 30, the housing 10 is provided with a first inlet 11 and a second inlet 12, the main valve core rod 20 is provided with a connecting channel 21, the main valve core rod 20 is rotatably installed in the housing 10 to control the connection/disconnection between the connecting channel 21 and the first inlet 11 and the second inlet 12 under the driving of the main valve core rod 20; the measuring rod 30 is axially slidably installed in the main valve core rod 20, wherein the measuring rod 30 is provided with a stress ring 31, the stress ring 31 is disposed in the connecting channel 21, and a medium introduced into the connecting channel 21 can act on the stress ring 31 to drive the measuring rod 30 to axially slide relative to the main valve core rod 20 and measure a flow rate of the medium passing through the connecting channel 21. Specifically, the medium in the connecting channel 21 of the main valve core rod 20 is introduced from the first inlet 11 and the second inlet 12 of the housing 10.

It can be understood that the flowmeter 100 of the present application is provided with the reasonable structure of the above-mentioned housing 10, the valve core main rod 20 and the measuring rod 30, so that the flowmeter 100 can be started only by driving the valve core main rod 20 to rotate, and the axial movement of the measuring rod 30 relative to the valve core main rod 20 is realized by utilizing the pressure of the medium introduced into the connecting channel 21 to the stress ring 31, and the purpose of medium flow measurement is achieved, which is not only simple and convenient to operate, but also the height of the valve core main rod 20 can not change when the flowmeter 100 is started, so that the flowmeter 100 can be used without being influenced by the flowmeter installation space, and further has the function of improving the application range of the flowmeter 100.

The valve core main rod 20 partially extends outward relative to the housing 10, so that when the flowmeter 100 is started, a human hand can act on the portion of the valve core main rod 20 extending out of the housing 10, so as to rotate the valve core main rod 20 relative to the housing 10, that is, to operate and control the flowmeter 100.

As shown in fig. 3, the first inlet 11 and/or the second inlet 12 are/is configured to have an elliptical shape, and preferably, the first inlet 11 and the second inlet 12 are both configured to have an elliptical shape, and the diameter of the elliptical first inlet 11 and/or the elliptical second inlet 12 is larger than that of the elliptical first inlet 11 and/or the elliptical second inlet 12, so that sand or dirt mixed in the medium can be prevented from blocking the first inlet 11 and/or the second inlet 12. It should be noted that the shape of the first inlet 11 and/or the second inlet 12 is not limited to that shown in the drawings, and it is obvious to those skilled in the art that the first inlet 11 and/or the second inlet 12 may be configured in other irregular shapes, which will not be described herein.

As shown in fig. 2, the flowmeter 100 further includes a positioning member 13, an arc-shaped groove 22 is formed on the valve core main rod 20, and the arc-shaped groove 22 is arranged corresponding to the positioning member 13; the positioning element 13 penetrates through the housing 10 and extends into the corresponding arc-shaped groove 22 to axially limit the valve core main rod 20 to the housing 10, thereby realizing the rotational connection between the valve core main rod 20 and the housing 10. It should be noted that the positioning member 13 is preferably provided as a positioning pin 131, and the positioning pin 131 can be threadedly engaged with the housing 10 so as to limit the positioning pin 131 to the housing 10.

In an embodiment, the number of the positioning elements 13 is two, and the arc-shaped grooves 22 formed in the valve core main rod 20 are also two, and the portion of the positioning element 13 penetrating through the housing 10 can extend into the corresponding arc-shaped grooves 22, so that the stability of assembly between the housing 10 and the valve core main rod 20 can be further improved.

As shown in fig. 1 and 2, a threaded connection portion 14 is further provided on the housing 10, and the flowmeter 100 is mounted to a main water diversion pipe (not shown) of the water diverter in a threaded manner through the threaded connection portion 14 on the housing 10. Of course, in order to ensure the sealing performance of the flowmeter 100 when it is assembled to the main water main, a fifth seal ring 105 may be fitted to the screw connection portion 14 to seal the housing 10 and the main water main.

As shown in fig. 4, a first connection hole 23 and a second connection hole 24 are formed in a wall 201 of the main valve core rod 20, the first connection hole 23 is arranged to match with the first inlet 11, and the second connection hole 24 is arranged to match with the second inlet 12; the first inlet 11 communicates with the connection passage 21 through the first connection hole 23, and the second inlet 12 communicates with the connection passage 21 through the second connection hole 24, thereby realizing communication between the connection passage 21 and the first and second inlets 11 and 12. It should be noted that the first connection hole 23 is disposed to match the first inlet 11, and the second connection hole 24 is disposed to match the second inlet 12, specifically, the first connection hole 23 and the first inlet 11, and the second connection hole 24 and the second inlet 12 are disposed in the same shape and size.

As shown in fig. 2, a first sealing ring 101 and a second sealing ring 102 are disposed on the valve core main rod 20, and the first sealing ring 101 and the second sealing ring 102 are disposed between the valve core main rod 20 and the housing 10, wherein the first sealing ring 101 and the first connection hole 23 are disposed at intervals along the circumferential direction of the valve core main rod 20, and the second sealing ring 102 and the second connection hole 24 are disposed at intervals along the circumferential direction of the valve core main rod 20; the first seal ring 101 and the second seal ring 102 are deformable under pressure to simultaneously close the corresponding first inlet 11 and the second inlet 12. When the flowmeter 100 is in operation, and the valve core main rod 20 rotates relative to the casing 10, the valve core main rod 20 can drive the first sealing ring 101 and the second sealing ring 102 to separate from the corresponding first inlet 11 and the corresponding second inlet 12, and the different rotation angles of the valve core main rod 20 are utilized to control the overlapping areas between the first inlet 11 and the first connecting hole 23, and between the second inlet 12 and the second connecting hole 24, thereby achieving the purpose of adjusting the medium flow rate introduced by the first inlet 11 and the second inlet 12.

It should be noted that the first seal ring 101 and the second seal ring 102 are partially fitted to the rod wall 201 of the valve core main rod 20, so that when the valve core main rod 20 rotates relative to the housing 10, the valve core main rod 20 can simultaneously drive the first seal ring 101 and the second seal ring 102 to rotate relative to the housing 10.

As shown in fig. 2, the flowmeter 100 further includes a third sealing ring 103 and a fourth sealing ring 104, where the third sealing ring 103 and the fourth sealing ring 104 are disposed between the main spool rod 20 and the casing 10 and located at two outer sides of the first inlet 11 and the second inlet 12, so as to seal the main spool rod 20 and the casing 10. In order to ensure the sealing performance when the main valve core rod 20 and the housing 10 are assembled, the number of the third sealing ring 103 and the fourth sealing ring 104 may be multiple according to the requirement of use, and will not be described herein.

As shown in fig. 2 and 5, the force-receiving ring 31 has a force-receiving surface 311, and the plane direction of the force-receiving surface 311 is the same as the radial direction of the measuring rod 30, so that the contact area of the force-receiving ring 31 when contacting the medium introduced into the connecting channel 21 can be increased, and the medium can be pushed by the force-receiving ring 31 to axially move the measuring rod 30. It should be noted that the outer diameter of the force-bearing ring 31 is smaller than the inner diameter of the connection channel 21, so that the measuring rod 30 can move axially in the connection channel 21 under the driving of the force-bearing ring 31, and the media introduced from the first inlet 11 and the second inlet 12 can be discharged from the connection channel 21, that is, the function of the flow meter 100 applied to collecting flow in a water separator is achieved.

Wherein, the force-bearing ring 31 is connected with the measuring rod 30 as a whole, so as to facilitate the production and preparation of the measuring rod 30.

In one embodiment, the measuring rod 30 is further provided with an indicating ring 32, and the measuring rod 30 can drive the indicating ring 32 to move axially relative to the main valve core rod 20; the measuring rod 30 is further sleeved with an elastic member 33, and two ends of the elastic member 33 respectively abut against the indicating ring 32 and the main valve core rod 20 to drive the measuring rod 30 to elastically reset, so as to meet the use requirement of the flowmeter 100 for repeatedly adjusting the flow rate. That is, when the flowmeter 100 is turned on and conducts the medium, the medium needs to overcome the resistance of the elastic member 33 and drive the measuring rod 30 to move axially, and the resistance to be overcome when the measuring rod 30 moves corresponds to the flow rate of the medium passing through the connecting channel 21. It should be noted that the elastic member 33 is specifically configured as a spring, and it is obvious to those skilled in the art that the elastic member 33 may also be configured as a bellows, a rubber sleeve, or other flexible members.

As shown in fig. 1, the flowmeter 100 further includes a metering cap 40, and the metering cap 40 is sleeved on the measuring rod 30 and is fixedly connected to the main valve core rod 20; wherein, the metering cover 40 is marked with a flow scale 41, and the flow scale 41 can be matched with the indicating ring 32 to reflect the flow of the medium. That is, the measuring rod 30 drives the indicating ring 32 to move to one of the positions of the flow rate scale 41 on the measuring cover 40, and the corresponding reading of the position is the medium flow rate when passing through the connecting channel 21. It should be noted that the metering cover 40 is configured to be transparent so that a person can visually read the value of the flow rate scale 41 corresponding to the indicating ring 32.

It can be understood that, when the flowmeter 100 of the present application is in operation, the measuring rod 30 always moves in the measuring cap 40 and the main valve element rod 20, and the flowmeter 100 is integrally sealed, so that external dust can be prevented from entering the flowmeter 100, and normal use of the flowmeter 100 is ensured.

As shown in fig. 2, the metering cap 40 is fixedly connected to the valve core main rod 20 in a threaded manner, so that the metering cap 40 is mounted on the valve core main rod 20; in order to improve the sealing property of the assembly between the metering cap 40 and the valve body main rod 20, a sixth sealing ring 106 may be specifically provided between the valve body main rod 20 and the metering cap 40.

Further, the flow meter 100 further includes a metering cover outer sleeve 50, and the metering cover outer sleeve 50 is sleeved on the metering cover 40 to protect the metering cover 40.

In summary, the flowmeter 100 claimed in the present application can be implemented by rotating the main valve element rod 20 during flow rate adjustment, so as to facilitate operation and control of the flowmeter 100, and in the process, the height of the main valve element rod 20 of the flowmeter 100 does not change, so that the flowmeter 100 can be used without being affected by the installation space of the flowmeter 100, and the flowmeter 100 has an effect of improving the application range.

The features of the above embodiments may be arbitrarily combined, and for the sake of brevity, all possible combinations of the features in the above embodiments are not described, but should be construed as being within the scope of the present specification as long as there is no contradiction between the combinations of the features.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that suitable changes and modifications of the above embodiments are within the scope of the claimed invention as long as they are within the spirit and scope of the present invention.

Claims (10)

1. A flow meter for use in a water separator, the flow meter (100) comprising:

the device comprises a shell (10), wherein a first inlet (11) and a second inlet (12) are formed in the shell (10);

the valve core main rod (20), a connecting channel (21) is arranged on the valve core main rod (20), the valve core main rod (20) is rotatably installed in the shell (10), and the on/off between the connecting channel (21) and the first inlet (11) and the second inlet (12) is controlled under the driving of the valve core main rod (20); and

measuring stick (30), measuring stick (30) axial sliding install in case mobile jib (20), wherein, be equipped with atress ring (31) on measuring stick (30), atress ring (31) set up in interface channel (21), and leading-in extremely medium in interface channel (21) can act on atress ring (31), in order to expect measuring stick (30) do relatively the axial slip of case mobile jib (20), and measure the medium is via flow when interface channel (21).

2. The flowmeter according to claim 1, wherein a first connection hole (23) and a second connection hole (24) are formed in a rod wall (201) of the valve core main rod (20), the first connection hole (23) is arranged to match with the first inlet (11), and the second connection hole (24) is arranged to match with the second inlet (12);

the first inlet (11) communicates with the connection passage (21) through the first connection hole (23), and the second inlet (12) communicates with the connection passage (21) through the second connection hole (24).

3. The flowmeter of claim 2, wherein the main spool rod (20) is provided with a first sealing ring (101) and a second sealing ring (102), the first sealing ring (101) and the second sealing ring (102) are arranged between the main spool rod (20) and the casing (10), wherein the first sealing ring (101) and the first connecting hole (23) are arranged at intervals along the circumferential direction of the main spool rod (20), and the second sealing ring (102) and the second connecting hole (24) are arranged at intervals along the circumferential direction of the main spool rod (20);

the first sealing ring (101) and the second sealing ring (102) can be deformed under pressure so as to simultaneously seal the corresponding first inlet (11) and the second inlet (12).

4. The flowmeter according to claim 1, wherein the flowmeter (100) further comprises a positioning member (13), an arc-shaped groove (22) is formed in the valve core main rod (20), and the arc-shaped groove (22) is arranged corresponding to the positioning member (13);

the positioning piece (13) penetrates through the shell (10) and extends into the corresponding arc-shaped groove (22) so as to axially limit the valve core main rod (20) to the shell (10).

5. A meter according to claim 1, characterized in that the first inlet (11) and/or the second inlet (12) are provided as an oval configuration.

6. The flowmeter of claim 1, wherein the flowmeter (100) further comprises a third sealing ring (103) and a fourth sealing ring (104), the third sealing ring (103) and the fourth sealing ring (104) are disposed between the main spool rod (20) and the casing (10) and are located at two outer sides of the first inlet (11) and the second inlet (12) for assembling and sealing the main spool rod (20) and the casing (10).

7. The flowmeter of claim 1, wherein the force ring (31) has a force-bearing surface (311), the force-bearing surface (311) having a planar direction that is the same as a radial direction of the measuring rod (30).

8. The flowmeter of claim 1, wherein the measuring rod (30) is further provided with an indicating ring (32), and the measuring rod (30) can drive the indicating ring (32) to move axially relative to the main valve core rod (20);

the measuring rod (30) is further sleeved with an elastic piece (33), and two ends of the elastic piece (33) are respectively abutted against the indicating ring (32) and the valve core main rod (20) to drive the measuring rod (30) to elastically reset.

9. The flowmeter according to claim 8, wherein the flowmeter (100) further comprises a metering cover (40), the metering cover (40) being sleeved on the measuring rod (30) and fixedly connected with the main valve core rod (20);

wherein, the metering cover (40) is marked with a flow scale (41), and the flow scale (41) can be matched with the indicating ring (32) to reflect the flow of the medium.

10. A water separator, comprising a water separator body and the flowmeter (100) according to any one of claims 1 to 9, wherein the water separator body has a main water-separating pipe, the main water-separating pipe is arranged corresponding to the flowmeter (100), and the flowmeter (100) is mounted on the corresponding main water-separating pipe.

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