High-sealing circular gear flowmeter

Abstract

The utility model discloses a high-sealing circular gear flowmeter, which belongs to the technical field of gear flowmeters, and comprises a liquid inlet, a liquid inlet pipe body and a backflushing component, a blowdown pipe is communicated with the liquid inlet through an adjusting first electromagnetic three-way valve arranged in the backflushing component, and the liquid inlet is communicated with the blowdown pipe through an adjusting second electromagnetic three-way valve arranged in the backflushing component. A second electromagnetic three-way valve is adjusted to enable the liquid inlet pipe body to be connected with the backflushing pipe body, a third electromagnetic three-way valve is adjusted to enable the backflushing pipe body to be communicated with the liquid outlet pipe body, and then liquid in the liquid inlet pipe body can enter the gear flow meter body through the liquid outlet pipe body to achieve backflushing; impurities such as pebbles enter the interior of the blow-off pipe through the liquid inlet through back flushing and are discharged outwards through the blow-off pipe, so that foreign matters which cause the gear to be stuck can be automatically cleaned without manual operation, and the back-flushed impurities can be filtered through a filter screen in the filter assembly; and redundant liquid is discharged at an appointed position through the connecting pipe body, so that waste can be avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of gear flowmeters, and in particular relates to a highly sealed circular gear flowmeter. Background Art

[0002] Gear flowmeters display flow signals in two ways: local and remote. Local display connects the gear rotation directly to the indicator needle on the instrument panel after passing through a series of speed reduction and speed ratio adjustment mechanisms. A mechanical counter displays the total amount. Gear flowmeters, also known as Fuda flowmeters in product catalogs, are a newer type of positive displacement flowmeter used for precise continuous or intermittent measurement of liquid flow or instantaneous flow in pipelines. They are particularly suitable for measuring the flow of highly viscous media such as heavy oil, polyvinyl alcohol, and resins.

[0003] Chinese utility model patent CN220437489U discloses a gear flowmeter, including a flowmeter body, a fixed plate fixedly installed between the inner walls of the flowmeter body, two sealing grooves are provided on the top of the fixed plate, and the inner walls of the two sealing grooves are slidably connected with sealing plates. When in use, the stretching handle is pulled downward in sequence, so that the stretching handle drives the pull rod to pull, and at this time the pull rod drives the sealing plate to be pulled downward, and the sealing plate is clamped by the block and the rotating gear, so that the sealing plate drives the rotating gear to be pulled downward in sequence, and at this time, clean water is used to flush the water inlet pipe.

[0004] Although the above-mentioned prior art can effectively flush out impurities between the two gears, manual operation and flushing are required when the gear flowmeter is clogged, which requires someone to monitor the gear flowmeter in real time, increasing manpower investment. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0006] In order to solve the problem proposed in the above background technology that when the gear flowmeter is blocked, manual operation and flushing are required, which requires someone to monitor the gear flowmeter in real time and increases manpower input, the utility model adopts the following technical solution.

[0007] A highly sealed circular gear flowmeter comprises a liquid outlet tube body detachably connected to one end of a gear flowmeter body, a liquid inlet being provided at the other end of the gear flowmeter body, a liquid inlet being detachably connected to the liquid inlet tube body, and a backflush assembly being installed on the liquid inlet tube body and the liquid outlet tube body, wherein the backflush assembly allows the liquid inside the liquid inlet tube body to enter the interior of the gear flowmeter body through the liquid outlet tube body.

[0008] Preferably, a blockage detection component is installed on the liquid outlet pipe body, and the blockage detection component can detect the flow rate of the liquid inside the liquid outlet pipe body.

[0009] Preferably, a filter assembly is installed on one side of the outer wall of the gear flowmeter body, and the filter assembly filters impurities in the backflushing liquid.

[0010] Preferably, the backflush assembly includes a first electromagnetic three-way valve, a drain pipe, a second electromagnetic three-way valve, a backflush tube body and a third electromagnetic three-way valve. The end of the liquid inlet is detachably connected to the first interface of the liquid inlet, the second interface of the liquid inlet is detachably connected to the drain pipe, the third interface of the first electromagnetic three-way valve is detachably connected to the first interface of the second electromagnetic three-way valve, the second interface of the second electromagnetic three-way valve is detachably connected to the backflush tube body, the third interface of the second electromagnetic three-way valve is detachably connected to the liquid inlet tube body, the end of the liquid outlet tube body is detachably connected to the first interface of the third electromagnetic three-way valve, and the backflush tube body is detachably connected to the second interface of the third electromagnetic three-way valve.

[0011] Preferably, the blockage detection component includes a flow sensor, and the third interface of the third electromagnetic three-way valve is detachably connected to the flow sensor.

[0012] Preferably, the filter assembly includes a funnel tube, a connecting tube body and a filter screen. The outer wall of one side of the gear flowmeter body is detachably connected to the funnel tube, the bottom of the funnel tube is fixedly connected to the connecting tube body, the liquid inside the sewage pipe flows outward into the interior of the funnel tube, and the inner wall of the funnel tube is fixedly connected to the filter screen.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. By adjusting the first electromagnetic three-way valve in the backflush assembly, the drain pipe is connected to the liquid inlet, the second electromagnetic three-way valve is adjusted to connect the liquid inlet pipe body to the backflush pipe body, and the third electromagnetic three-way valve is adjusted to connect the backflush pipe body to the liquid outlet pipe body. The liquid in the liquid inlet pipe body can enter the interior of the gear flowmeter body through the liquid outlet pipe body to realize backflush. Impurities such as stones are passed through the liquid inlet into the interior of the drain pipe through the backflush and are discharged outward through the drain pipe, so that foreign objects that cause gear jamming can be automatically cleaned without manual operation.

[0015] 2. The flow sensor in the blockage detection component can detect whether there is liquid flowing out of the liquid outlet pipe body. When the gear inside the gear flowmeter body is stuck by impurities, the liquid flow inside the liquid outlet pipe body is reduced or disappears directly. Then, the flow sensor can detect and send a signal to control the action of the backflush component, guiding the liquid inside the liquid inlet pipe body from the liquid outlet pipe body into the gear flowmeter body for backflush, thereby achieving the effect of automatic backflush and reducing manpower input.

[0016] 3. The filter net in the filter assembly can filter out the impurities that are backflushed, and the excess liquid is discharged to the designated location through the connecting pipe body, thereby avoiding waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a highly sealed circular gear flowmeter in the present utility model;

[0018] Figure 2 This is a schematic diagram of the recoil assembly structure in the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the blockage detection component in the present utility model;

[0020] Figure 4 This is a schematic diagram of the filter assembly structure in the present utility model.

[0021] The corresponding relationship between the illustration labels and component names in the figure is as follows:

[0022] 100, gear flowmeter body; 101, liquid inlet; 102, liquid outlet pipe; 103, liquid inlet pipe;

[0023] 200, first electromagnetic three-way valve; 201, sewage pipe; 202, second electromagnetic three-way valve; 203, backflush pipe body; 204, third electromagnetic three-way valve; 205, flow sensor; 206, funnel tube; 207, connecting pipe body; 208, filter screen. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0027] like Figure 1 As shown, it is a schematic structural diagram of a highly sealed circular gear flowmeter of a preferred embodiment of the present invention. The highly sealed circular gear flowmeter of this embodiment includes a liquid outlet tube body 102 detachably connected to one end of the gear flowmeter body 100, and a liquid inlet 101 is provided at the other end of the gear flowmeter body 100. A liquid inlet 101 is detachably connected to the liquid inlet 101. A liquid inlet tube body 103 is detachably connected to the liquid inlet 101. In this embodiment, the liquid enters the interior of the gear flowmeter body 100 from the liquid inlet 101 through the liquid inlet tube body 103, thereby driving the gears on the inner wall of the gear flowmeter body 100 to rotate and thereby detecting the flow rate.

[0028] like Figure 2 As shown, it is a schematic diagram of the recoil assembly structure in this embodiment, the end of the liquid inlet 101 is detachably connected to the first interface of the liquid inlet 101, the second interface of the liquid inlet 101 is detachably connected to the drain pipe 201, the third interface of the first electromagnetic three-way valve 200 is detachably connected to the first interface of the second electromagnetic three-way valve 202, the second interface of the second electromagnetic three-way valve 202 is detachably connected to the recoil tube body 203, the third interface of the second electromagnetic three-way valve 202 is detachably connected to the liquid inlet tube body 103, the end of the liquid outlet tube body 102 is detachably connected to the first interface of the third electromagnetic three-way valve 204, the recoil tube body 203 is detachably connected to the second interface of the third electromagnetic three-way valve 204, in this embodiment, under normal conditions, the second electromagnetic three-way valve 202 and the first electromagnetic three-way valve 200 make the liquid inlet tube body 103 and The liquid inlet 101 is connected, allowing the liquid to enter the interior of the gear flowmeter body 100. When impurities such as stones exist in the liquid and cause the gears inside the gear flowmeter body 100 to get stuck, the first electromagnetic three-way valve 200 is adjusted to connect the drain pipe 201 with the liquid inlet 101, the second electromagnetic three-way valve 202 is adjusted to connect the liquid inlet pipe body 103 with the backwash pipe body 203, and the third electromagnetic three-way valve 204 is adjusted to connect the backwash pipe body 203 with the liquid outlet pipe body 102, so that the liquid in the liquid inlet pipe body 103 can enter the interior of the gear flowmeter body 100 through the liquid outlet pipe body 102 to achieve backwashing. Through backwashing, impurities such as stones enter the interior of the drain pipe 201 through the liquid inlet 101 and are discharged outward through the drain pipe 201, so that foreign objects that cause gear jamming can be automatically cleaned without manual operation.

[0029] It is worth noting that the above-mentioned first electromagnetic three-way valve 200, drain pipe 201, second electromagnetic three-way valve 202, backflush tube body 203 and third electromagnetic three-way valve 204 are the backflush components in this embodiment. The backflush components include but are not limited to the first electromagnetic three-way valve 200, drain pipe 201, second electromagnetic three-way valve 202, backflush tube body 203 and third electromagnetic three-way valve 204. As long as it is a component that can adjust the liquid inside the liquid inlet tube body 103 to enter the gear flowmeter body 100 from the liquid outlet tube body 102 for backflush, it can be applied to this embodiment.

[0030] like Figure 3 As shown, it is a schematic diagram of the structure of the blockage detection component in this embodiment. The third interface of the third electromagnetic three-way valve 204 is detachably connected to a flow sensor 205. In this embodiment, the flow sensor 205 can detect whether there is liquid flowing out of the liquid outlet tube body 102. When the gear inside the gear flowmeter body 100 is stuck by impurities, the liquid flow inside the liquid outlet tube body 102 is reduced or disappears directly, and then the flow sensor 205 can detect and send a signal to control the action of the backflush component, guiding the liquid inside the liquid inlet tube body 103 from the liquid outlet tube body 102 into the interior of the gear flowmeter body 100 for backflush, thereby achieving the effect of automatic backflush and reducing manpower input.

[0031] It is worth noting that the flow sensor 205 is a blockage detection component in this embodiment. The blockage detection component includes but is not limited to the flow sensor 205. Any component that can detect the flow inside the liquid pipe body 102 can be applied to this embodiment.

[0032] like Figure 4 As shown, it is a schematic diagram of the filter assembly structure in this embodiment. A funnel tube 206 is detachably connected to the outer wall of one side of the gear flowmeter body 100, and a connecting tube body 207 is fixedly connected to the bottom of the funnel tube 206. The liquid inside the sewage pipe 201 flows outward into the interior of the funnel tube 206, and a filter screen 208 is fixedly connected to the inner wall of the funnel tube 206. In this embodiment, the impurities backflushed out can be filtered through the filter screen 208, and the excess liquid is discharged to a designated position through the connecting tube body 207, thereby avoiding waste.

[0033] It is worth noting that the above-mentioned funnel tube 206, connecting tube body 207 and filter net 208 are the filtering components in this embodiment. The filtering components include but are not limited to the funnel tube 206, connecting tube body 207 and filter net 208. As long as it is a component that can filter impurities and guide the filtered liquid to a certain location, it can be applied to this embodiment.

[0034] The above content is a further detailed description of the present invention in combination with specific implementation methods. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, they can make several simple deductions or substitutions without departing from the concept of the present invention, which should be regarded as falling within the scope of protection determined by the claims submitted for the present invention.

Claims

1. A highly sealed circular gear flowmeter, comprising a liquid outlet tube (102) detachably connected to one end of a gear flowmeter body (100), characterized in that: The other end of the gear flowmeter body (100) is provided with a liquid inlet (101), a liquid inlet tube (103) is detachably connected to the liquid inlet (101), and a backflush assembly is installed on the liquid inlet tube (103) and the liquid outlet tube (102). The backflush assembly allows the liquid inside the liquid inlet tube (103) to enter the interior of the gear flowmeter body (100) through the liquid outlet tube (102).

2. The highly sealed circular gear flowmeter according to claim 1, characterized in that: A blockage detection component is installed on the liquid outlet pipe body (102), and the blockage detection component can detect the flow rate of the liquid inside the liquid outlet pipe body (102).

3. The highly sealed circular gear flowmeter according to claim 2, characterized in that: A filter assembly is installed on one side of the outer wall of the gear flowmeter body (100), and the filter assembly filters impurities in the backflushing liquid.

4. The highly sealed circular gear flowmeter according to claim 3, characterized in that: The backflush assembly comprises a first electromagnetic three-way valve (200), a sewage pipe (201), a second electromagnetic three-way valve (202), a backflush tube body (203) and a third electromagnetic three-way valve (204); the end of the liquid inlet (101) is detachably connected to the first interface of the liquid inlet (101); the second interface of the liquid inlet (101) is detachably connected to the sewage pipe (201); the third interface of the first electromagnetic three-way valve (200) is detachably connected to the first interface of the second electromagnetic three-way valve (202); the second interface of the second electromagnetic three-way valve (202) is detachably connected to the backflush tube body (203); the third interface of the second electromagnetic three-way valve (202) is detachably connected to the liquid inlet tube body (103); the end of the liquid outlet tube body (102) is detachably connected to the first interface of the third electromagnetic three-way valve (204); and the backflush tube body (203) is detachably connected to the second interface of the third electromagnetic three-way valve (204).

5. The highly sealed circular gear flowmeter according to claim 4, characterized in that: The blockage detection component comprises a flow sensor (205), and the third interface of the third electromagnetic three-way valve (204) is detachably connected to the flow sensor (205).

6. The highly sealed circular gear flowmeter according to claim 5, characterized in that: The filter assembly includes a funnel tube (206), a connecting tube body (207), and a filter screen (208). The outer wall of one side of the gear flowmeter body (100) is detachably connected to the funnel tube (206). The bottom of the funnel tube (206) is fixedly connected to the connecting tube body (207). The liquid inside the sewage pipe (201) flows outward and enters the interior of the funnel tube (206). The filter screen (208) is fixedly connected to the inner wall of the funnel tube (206).

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