Flow meter

Abstract

The utility model relates to the technical field of instruments, and provides a flow instrument which comprises a shell, a communicating pipe and a measuring assembly. Wherein the shell is provided with an inlet, an outlet and a containing cavity, the inlet and the outlet are formed in the top of the shell in a spaced mode in the first direction, the inlet and the outlet are both communicated with the containing cavity, and fluid flows in the containing cavity; the communicating pipe is located in the containing cavity and provided with a communicating cavity, the communicating cavity penetrates through the two ends of the communicating pipe in the first direction, and one end of the communicating pipe communicates with the outlet; the measuring assembly is arranged on the communicating pipe in the second direction and used for detecting the flow of fluid flowing through the communicating cavity in the first direction. By means of the structure, the space proportion of the flow instrument can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of instruments, and in particular to a flow meter. Background Art

[0002] Instruments are a general term for instruments that display numerical values, mainly including pressure instruments, flow meters and various sub-instruments. They are widely used in various fields such as industry, agriculture and daily life, and play an important role in the operation of various industries.

[0003] A flow meter for detecting flow rate usually includes a pipeline for fluid flow and a measuring component. The measuring component and the pipeline are connected along the height direction of the flow meter, and the flow rate of the fluid flowing in the pipeline is detected.

[0004] However, the measurement components and the pipeline are connected in the height direction, which leads to an increase in the structural dimensions of the flow meter in the height direction, while the structural design of the flow meter is gradually becoming miniaturized. Therefore, it is urgent to design a flow meter that can reduce the space occupied. Utility Model Content

[0005] The present application provides a flow meter that can reduce space occupation.

[0006] In order to achieve the above objectives, this application adopts the following technical solutions:

[0007] The present application provides a flow meter, comprising:

[0008] A shell, the shell having an inlet, an outlet and a receiving chamber, the inlet and the outlet are arranged at a distance from each other at the top of the shell along a first direction, the inlet and the outlet are both connected to the receiving chamber, and a fluid flows in the receiving chamber;

[0009] A connecting pipe, the connecting pipe is located in the accommodating cavity, the connecting pipe has a connecting cavity, the connecting cavity passes through both ends of the connecting pipe along a first direction, and one end of the connecting pipe is connected to the outlet;

[0010] a measuring component, the measuring component being disposed on the connecting tube along the second direction, and the measuring component being used to detect the flow rate of the fluid flowing through the connecting cavity along the first direction;

[0011] The first direction is along a length direction of the shell, and the second direction is along a width direction of the shell.

[0012] As a possible implementation manner, the flow meter further includes a control valve, an inlet of the control valve is connected to the connecting pipe, and an outlet of the control valve is connected to the outlet of the housing;

[0013] The control valve is used to control a communication state between the communication pipe and the outlet of the housing.

[0014] As a possible implementation manner, the control valve includes a first valve core and a first motor, and the first valve core is movably disposed on the inlet side of the control valve along the first direction;

[0015] The first motor is connected to an end of the first valve core away from the inlet of the control valve along the first direction; the first motor drives the first valve core to move.

[0016] As a possible implementation, the control valve includes a second valve core and a second motor, and the second valve core is movably disposed on the outlet side of the control valve in a vertical direction;

[0017] The second motor is connected to an end of the second valve core away from the outlet of the housing along the vertical direction; the second motor drives the second valve core to move.

[0018] As a possible implementation manner, the flow meter further includes a connecting pipe, the connecting pipe is located in the accommodating cavity, and one end of the connecting pipe is connected to the inlet of the shell;

[0019] Along the first direction, one end of the connecting pipe away from the inlet and the end of the communicating pipe close to the inlet are staggered.

[0020] As a possible implementation, the connecting pipe includes a first extension section, the first extension section is connected to the inlet of the shell, the first extension section extends toward a side away from the inlet, and the end of the first extension section away from the inlet is toward the outer wall of the connecting pipe.

[0021] As a possible implementation manner, the connecting pipe includes a second extension section and a third extension section which are sequentially connected and communicated with each other, the second extension section is communicated with the inlet of the shell, and the second extension section extends toward a side away from the inlet;

[0022] The third extension section extends along the first direction; the end of the third extension section away from the second extension section along the first direction is offset from the connecting pipe.

[0023] As a possible implementation manner, two through holes are provided on the tube wall opposite to the connecting tube and the measuring component, and the two through holes are spaced apart along the first direction;

[0024] The measuring component includes a transducer and a controller, the transducer has an emitting end and a receiving end, the emitting end is arranged corresponding to one of the two through holes, and the receiving end is arranged corresponding to the other through hole, the emitting end is used to emit ultrasonic waves to the inner wall opposite to the connecting pipe and the measuring component, and the receiving end is used to receive the ultrasonic waves reflected by the connecting pipe;

[0025] The controller is electrically connected to the transducer and calculates the flow rate of the fluid according to the ultrasonic wave received by the receiving end.

[0026] As a possible implementation, the connecting pipe has at least one partition plate, the partition plate is located in the connecting cavity, the partition plate extends along the first direction, and the partition plate is protruded relative to the inner wall of the connecting pipe along the second direction;

[0027] Along the first direction, the thickness of the end of the partition plate close to the connecting pipe is smaller than the thickness of the partition plate in the middle of the connecting pipe.

[0028] As a possible implementation manner, there are a plurality of partition plates, and the plurality of partition plates are sequentially spaced apart along a thickness direction of the partition plates.

[0029] The flow meter provided by the present application has a connecting tube located in the accommodating chamber, and the connecting chamber of the connecting tube is connected to the accommodating chamber of the shell. When the fluid flows in the accommodating chamber, part of the fluid flows along the first direction through the connecting chamber of the connecting tube. The measuring component is arranged on the connecting tube along the second direction, and the measuring component can measure the flow rate of the fluid flowing in the connecting tube along the first direction. On the basis of satisfying the flow meter's flow detection of the fluid, the measuring component and the connecting tube are connected along the second direction, so that the overall structural dimensions of the flow meter in the vertical direction are reduced, and the structure of the flow meter is more compact, which reduces the space occupied by the flow meter, contributes to the miniaturized design of the flow meter, and reduces the cost of the flow meter. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 Schematic diagram of the flow meter provided in the embodiment of the present application Figure 1 ;

[0032] Figure 2 Schematic diagram of the flow meter provided in the embodiment of the present application Figure 2;

[0033] Figure 3 for Figure 1 A cross-sectional view of

[0034] Figure 4 Schematic diagram of the flow meter provided in the embodiment of the present application Figure 3 ;

[0035] Figure 5 for Figure 4 sectional view of .

[0036] Description of reference numerals:

[0037] 100-Flow meter;

[0038] 110-housing; 111-accommodating chamber; 112-body; 113-housing cover; 114-supporting member; 115-inlet; 116-outlet;

[0039] 120-connecting pipe; 121-connecting cavity; 122-partitioning plate;

[0040] 130- measurement assembly;

[0041] 140-connecting pipe; 141-first extension section; 142-second extension section; 143-third extension section;

[0042] 150 - control valve; 151 - first valve core; 152 - first motor; 153 - second valve core; 154 - second motor;

[0043] 160-Grille. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0045] Instruments are a general term for instruments that display numerical values, mainly including pressure instruments, flow meters and various sub-instruments. They are widely used in various fields such as industry, agriculture and daily life, and play an important role in the operation of various industries.

[0046] A flow meter for detecting flow rate usually includes a pipeline for fluid flow and a measuring component. The measuring component and the pipeline are connected along the height direction of the flow meter, and the flow rate of the fluid flowing in the pipeline is detected.

[0047] However, the measurement components and the pipeline are connected in the height direction, which leads to an increase in the structural dimensions of the flow meter in the height direction, while the structural design of the flow meter is gradually becoming miniaturized. Therefore, it is urgent to design a flow meter that can reduce the space occupied.

[0048] In order to overcome the defects in the prior art, the present application provides a flow meter, including a housing, a connecting pipe and a measuring assembly, wherein the connecting pipe is arranged in the housing along a first direction, and the measuring assembly is arranged on the connecting pipe along a second direction, and when the fluid flows in the accommodating cavity, the measuring assembly can measure the flow in the connecting pipe along the second direction to obtain the flow rate of the fluid. The flow meter provided by the present application can reduce the space occupied by the flow meter by connecting the measuring assembly and the connecting pipe along the second direction, and the structure of such a flow meter is more compact, further reducing the cost of the flow meter.

[0049] The content of the utility model will be described in detail below with reference to the accompanying drawings so that those skilled in the art can understand the content of the utility model more clearly and in detail.

[0050] Figure 1 Schematic diagram of the flow meter provided in the embodiment of the present application Figure 1 . Figure 2 Schematic diagram of the flow meter provided in the embodiment of the present application Figure 2 . Figure 3 for Figure 1 sectional view of . Figure 4 Schematic diagram of the flow meter provided in the embodiment of the present application Figure 3 . Figure 5 for Figure 4 A cross-sectional view of Figure 1-Figure 5 As shown, this embodiment provides a flow meter 100 , including: a housing 110 , a connecting pipe 120 and a measuring assembly 130 .

[0051] The shell 110 has an inlet 115, an outlet 116 and a receiving chamber 111. The inlet 115 and the outlet 116 are arranged at intervals on the top of the shell 110 along the first direction (X direction). The inlet 115 and the outlet 116 are both connected to the receiving chamber 111, and the fluid flows in the receiving chamber 111.

[0052] The connecting pipe 120 is located in the accommodating chamber 111 . The connecting pipe 120 has a connecting chamber 121 . The connecting chamber 121 penetrates both ends of the connecting pipe 120 along a first direction (X direction). One end of the connecting pipe 120 is connected to the outlet 116 .

[0053] The measuring component 130 is disposed on the connecting tube 120 along the second direction (Y direction), and the measuring component 130 is used to detect the flow rate of the fluid flowing through the connecting cavity 121 along the first direction (X direction).

[0054] In this embodiment, the first direction (X direction) is along the length direction of the housing 110 , and the second direction (Y direction) is along the width direction of the housing 110 .

[0055] In the flow meter 100 provided in the embodiment of the present application, the connecting tube 120 is located in the accommodating chamber 111, and the connecting chamber 121 of the connecting tube 120 is connected to the accommodating chamber 111 of the housing 110. When the fluid flows in the accommodating chamber 111, part of the fluid flows along the first direction (X direction) through the connecting chamber 121 of the connecting tube 120. The measuring component 130 is arranged on the connecting tube 120 along the second direction (Y direction), and the measuring component 130 can obtain the flow rate of the fluid flowing in the connecting tube 120 along the first direction (X direction). On the basis of satisfying the flow meter 100 for fluid flow detection, the measuring component 130 and the connecting tube 120 are connected along the second direction (Y direction), so that the structural dimensions of the flow meter 100 along the height direction can be reduced, and the structure of the flow meter 100 is more compact, which reduces the space occupation of the flow meter 100, contributes to the miniaturization design of the flow meter 100, and further reduces the cost of the flow meter 100.

[0056] It should be noted that the fluid in this embodiment may be natural gas, but is not limited to natural gas.

[0057] Exemplarily, the housing 110 includes a body 112 and a shell cover 113. The body 112 has an opening at the top along the vertical direction (Z direction). The shell cover 113 covers the opening of the body 112. The shell cover 113 and the body 112 together form a receiving cavity 111. The shell cover 113 and the body 112 are connected by threaded fasteners along the vertical direction (Z direction) to keep the shell cover 113 and the body 112 in a relatively stable fixed connection.

[0058] It can be understood that fluid flows in the accommodating cavity 111 of the shell 110. In order to prevent the fluid from escaping from the connection between the shell cover 113 and the main body 112, the shell cover 113 and the main body 112 in this embodiment need to be sealed. For example, a seal can be added between the main body 112 and the shell cover 113, and the seal is respectively abutted against the main body 112 and the shell cover 113 on both sides along the vertical direction (Z direction). When the main body 112 and the shell cover 113 are fastened together by threaded fasteners, the shell 110 can be sealed, thereby improving the sealing performance of the shell 110 and the safety of use of the flow meter 100.

[0059] The inlet 115 and the outlet 116 are arranged at intervals along the first direction (X direction) at the top of the housing 110, that is, the inlet 115 and the outlet 116 are arranged on the housing cover 113. In the specific implementation process, the housing cover 113 is provided with two connecting ends, the two connecting ends are arranged at intervals along the first direction (X direction), and are integrally formed with the housing cover 113, so that the two connecting ends are respectively connected to the accommodating cavity 111 of the housing 110, and the two connecting ends form the inlet 115 and the outlet 116, and the fluid is passed into the accommodating cavity 111 through the inlet 115.

[0060] The connecting tube 120 is located in the accommodating chamber 111. Exemplarily, a support member 114 is provided on the bottom wall of the accommodating chamber 111, and the support member 114 protrudes from the bottom wall of the accommodating chamber 111 along the vertical direction (Z direction). The support member 114 and the outer wall of the connecting tube 120 are connected along the vertical direction (Z direction) to support the connecting tube 120. The connecting tube 120 in this embodiment has a connecting cavity 121, and the connecting cavity 121 extends along the first direction (X direction) and passes through the opposite ends of the connecting tube 120, so that the connecting tube 120 is connected with the accommodating chamber 111 of the housing 110 through the connecting cavity 121. When the fluid flows in the accommodating chamber 111, part of the fluid flows through the connecting cavity 121 along the first direction (X direction).

[0061] It is understood that the end of the connecting pipe 120 is connected to the outlet 116 of the shell cover 113 facing the side of the accommodating chamber 111. It should be noted that the connecting pipe 120 and the outlet 116 on the shell cover 113 are connected by threaded fasteners or the two are relatively fixedly connected by clamping.

[0062] Furthermore, a seal may be provided at the connection between the end of the connecting tube 120 and the outlet 116 on the shell cover 113 to achieve a sealed connection between the connecting tube 120 and the shell cover 113, thereby improving the sealing and safety of the flow meter 100. The fluid enters the accommodating chamber 111 through the inlet 115 of the shell 110, and flows out of the outlet 116 of the shell 110 along the first direction (X direction) through the connecting chamber 121 of the connecting tube 120. The measuring assembly 130 is provided on the connecting tube 120 so as to measure the flow rate of the fluid.

[0063] It can be understood that the flow meter 100 provided in this embodiment also includes a measuring component 130, which is arranged on the connecting pipe 120 along the second direction (Y direction), and the measuring component 130 can detect the fluid flowing in the connecting pipe 120 along the first direction (X direction) to obtain the flow rate of the fluid. It is not difficult to understand that the measuring component 130 and the connecting pipe 120 are connected along the second direction (Y direction), which can reduce the height of the flow meter 100 along the vertical direction (Z direction), and the connections between the various components arranged in the accommodating cavity 111 of the housing 110 are relatively concentrated, the internal structure of the flow meter 100 is compact, the space occupation of the flow meter 100 is reduced, and the miniaturization design of the flow meter 100 is conducive to the cost of the flow meter 100.

[0064] As a possible implementation, the flow meter 100 also includes a control valve 150, the inlet of the control valve 150 is connected to the connecting pipe 120, and the outlet of the control valve 150 is connected to the outlet 116 of the shell 110; the control valve 150 is used to control the connection state between the connecting pipe 120 and the outlet 116 of the shell 110.

[0065] Specifically, Figure 4 and Figure 5 As shown, the control valve 150 is located between the connecting pipe 120 and the outlet 116 of the shell 110, the inlet of the control valve 150 is connected to the connecting pipe 120, and the outlet of the control valve 150 is connected to the outlet 116 of the shell 110. The control valve 150 can control the connection state between the connecting pipe 120 and the inlet of the control valve 150 to achieve control of the connection state between the connecting pipe 120 and the outlet 116 of the shell 110; or, the control valve 150 controls the connection state between the outlet 116 of the shell 110 and the outlet of the control valve 150 to achieve control of the connection state between the connecting pipe 120 and the outlet 116 of the shell 110.

[0066] In the specific use process, the control valve 150 needs to be electrically connected to the power supply, and the control valve 150 is in a normally open working state. For example, the power supply can be a battery. In the process of replacing the battery, the control valve 150 is powered off, the control valve 150 is closed, and the connecting pipe 140 and the outlet 116 of the housing 110 are not connected to each other to prevent the fluid from escaping.

[0067] In one embodiment, the control valve 150 includes a first valve core 151 and a first motor 152. The first valve core 151 is movably arranged on the inlet side of the control valve 150 along a first direction (X direction); the first motor 152 is connected to an end of the first valve core 151 away from the inlet of the control valve 150 along the first direction (X direction); the first motor 152 drives the first valve core 151 to move.

[0068] Combination Figure 4 and Figure 5 As shown, the inlet of the control valve 150 in this embodiment is connected to the connecting pipe 120 along the first direction (X direction), and the outlet of the control valve 150 is connected to the outlet 116 of the housing 110 along the vertical direction (Z direction). The control valve 150 includes a first valve core 151, which is arranged toward the inlet side of the control valve 150, and moves toward one side of the connecting pipe 120 along the first direction (X direction). The end of the first valve core 151 toward the inlet side of the control valve 150 abuts against the inner wall of the control valve 150, and the first valve core 151 blocks the connecting pipe 120 and the inlet of the control valve 150 along the first direction (X direction). Correspondingly, the connecting pipe 120 and the outlet 116 of the housing 110 are not connected. When the first valve core 151 moves along the first direction (X direction) toward the side away from the connecting pipe 120, the end of the first valve core 151 toward the inlet side of the control valve 150 is disengaged from the inner wall of the control valve 150 or a gap is formed there, and the connecting pipe 120 and the outlet 116 of the housing 110 are connected through the control valve 150, and the fluid flows along the connecting pipe 120 and finally flows out from the outlet 116.

[0069] Further, the movement of the first valve core 151 along the first direction (X direction) is driven by the first motor 152. The first motor 152 is connected to the end of the first valve core 151 away from the inlet of the control valve 150 along the first direction (X direction), and the first motor 152 drives the first valve core 151 to move along the first direction (X direction), thereby controlling the connection state between the connecting pipe 120 and the outlet 116 of the housing 110. At the same time, the first motor 152 and the first valve core 151 are connected along the first direction (X direction), which will not increase the height of the flow meter 100 along the vertical direction (Z direction), and the first motor 152, the first valve core 151, and the connecting pipe 120 are connected as a whole along the first direction (X direction), and the various components are concentrated in the first direction (X direction). The various components are relatively compact, which is conducive to reducing the space occupation of the flow meter 100 and the miniaturized design of the flow meter 100.

[0070] Alternatively, the control valve 150 includes a second valve core 153 and a second motor 154, and the second valve core 153 is movably arranged in the vertical direction (Z direction) on the outlet side of the control valve 150; the second motor 154 is connected to the end of the second valve core 153 away from the outlet 116 of the shell 110 in the vertical direction (Z direction); the second motor 154 drives the second valve core 153 to move.

[0071] Combination Figure 1 and Figure 3As shown, in this embodiment, the inlet of the control valve 150 is connected to the connecting pipe 120 along the first direction (X direction), and the outlet of the control valve 150 is connected to the outlet 116 along the vertical direction (Z direction). The control valve 150 includes a second valve core 153, which is arranged toward the outlet side of the control valve 150, and the second valve core 153 moves toward one side of the outlet 116 of the housing 110 along the vertical direction (Z direction). The end of the second valve core 153 toward the outlet side of the control valve 150 abuts against the inner wall of the control valve 150, and the second valve core 153 blocks the outlet of the control valve 150 and the outlet 116 of the housing 110 along the vertical direction (Z direction). Correspondingly, the connecting pipe 120 and the outlet 116 of the housing 110 are not connected. When the second valve core 153 moves in the vertical direction (Z direction) toward the side of the outlet 116 away from the shell 110, the end of the second valve core 153 on the outlet side of the control valve 150 disengages from the inner wall of the control valve 150 or a gap is formed there, and the connecting pipe 120 and the outlet 116 of the shell 110 are connected through the control valve 150, and the fluid flows along the connecting pipe 120 and finally flows out from the outlet 116.

[0072] Furthermore, the movement of the second valve core 153 in the vertical direction (Z direction) is driven by the second motor 154. The second motor 154 is connected to the end of the second valve core 153 away from the outlet of the control valve 150 in the vertical direction (Z direction), and the second motor 154 drives the second valve core 153 to move in the vertical direction (Z direction), thereby controlling the connection state between the connecting pipe 120 and the outlet 116 of the housing 110. At the same time, the second motor 154 and the second valve core 153 are connected in the vertical direction (Z direction), saving the height of the flow meter 100 in the vertical direction (Z direction) and the first direction (X direction), and the various components of the control valve 150 are concentrated in the vertical direction (Z direction), and the various components are relatively compact, which is conducive to reducing the space occupation of the flow meter 100 and the miniaturized design of the flow meter 100.

[0073] In some embodiments, the flow meter 100 also includes a connecting tube 140, which is located in the accommodating cavity 111, and one end of the connecting tube 140 is connected to the inlet 115 of the shell 110; along the first direction (X direction), the end of the connecting tube 140 away from the inlet 115 and the end of the connecting tube 120 away from the outlet 116 are staggered.

[0074] like Figure 1 , Figure 3-Figure 5As shown, the connecting pipe 140 is disposed in the accommodating chamber 111 of the housing 110, and one end of the connecting pipe 140 is connected to the housing cover 113 by a threaded fastener. Furthermore, a sealing member may be provided at the connection between the connecting pipe 140 and the housing cover 113 to improve the sealing performance of the connection between the connecting pipe 140 and the housing cover 113, thereby improving the safety of the flow meter 100. In this way, the inlet 115 on the housing cover 113 of the connecting pipe 140 is connected, and the fluid enters the connecting pipe 140 through the inlet 115, and flows into the accommodating chamber 111 along with the connecting pipe 140.

[0075] In this embodiment, the end of the connecting tube 140 away from the inlet 115 and the end of the connecting tube 120 away from the outlet 116 are staggered along the first direction (X direction). In this way, after the fluid enters the accommodating chamber 111 through the connecting tube 140, the flow direction of the fluid is adjusted due to the staggered arrangement of the connecting tube 140 and the connecting tube 120, thereby making the flow of the fluid in the shell 110 more stable and smooth.

[0076] Exemplarily, the connecting pipe 140 includes a first extension section 141 , which is connected to the inlet 115 of the shell 110 , extends toward a side away from the inlet, and an end of the first extension section 141 away from the inlet 115 faces the outer wall of the connecting pipe 120 .

[0077] like Figure 4 and Figure 5 As shown, the first end of the first extension section 141 is connected to the inlet 115 of the housing 110, and the second end of the first extension section 141 extends along the vertical direction (Z direction). The second end of the first extension section 141 is in the accommodating cavity 111 of the housing 110, and is offset from the end of the connecting pipe 120 away from the outlet 116 along the first direction (X direction).

[0078] Specifically, the height of the second end of the first extension section 141 along the vertical direction (Z direction) is higher than the height of the connecting pipe 120, and along the first direction (X direction), the second end of the first extension section 141 is located on the side of the end of the connecting pipe 120 away from the outlet 116, at this time, the second end of the first extension section 141 and the pipe wall of the connecting pipe 120 are opposite to each other along the vertical direction (Z direction). In this way, the connecting pipe 140 and the connecting pipe 120 are mutually offset in the accommodating chamber 111 of the housing 110 along the first direction (X direction). In this way, the connecting pipe 140 realizes the offset setting with the end of the connecting pipe 120 through the first extension section 141, which can adjust the flow direction of the fluid. At the same time, the first extension section 141 is set along the vertical direction (Z direction), and the connecting pipe 140 and the control valve 150 share the space of the accommodating chamber along the vertical direction (Z direction), thereby improving the space utilization rate of the accommodating chamber 111 and reducing the overall space occupation of the flow meter 100, so as to realize the miniaturization design of the flow meter 100.

[0079] On the basis of the aforementioned embodiment, the connecting pipe 140 includes a second extension section 142 and a third extension section 143 which are connected in sequence and communicated with each other, the second extension section 142 is communicated with the inlet 115 of the shell 110, and the second extension section 142 extends toward a side away from the inlet 115; the third extension section 143 extends along a first direction (X direction); the end of the third extension section 143 away from the second extension section 142 along the first direction (X direction) is offset from the connecting pipe 120.

[0080] like Figure 1 and Figure 3 As shown, in this embodiment, the second extension section 142 and the third extension section 143 are connected and communicated with each other, the second extension section 142 extends along the vertical direction (Z direction), and the third extension section 143 extends along the first direction (X direction). Along the vertical direction (Z direction), the height of the third extension section 143 is determined by the extension length of the second extension section 142 in this direction. After the fluid flows through the second extension section 142, it enters the accommodating cavity 111 through the third extension section 143.

[0081] Exemplarily, along the vertical direction (Z direction), the height of the third extension section 143 is lower than the height of the connecting tube 120, that is, the third extension section 143 is located on the bottom side of the connecting tube 120; and along the first direction (X direction), the end of the third extension section 143 away from the second extension section 142 and the end of the connecting tube 120 close to the inlet 115 are offset.

[0082] According to the flow meter 100 provided in this embodiment, by mutually staggering the connecting pipe 140 and the connecting pipe 120 in the housing 110, it can be ensured that the fluid will not gather at a certain position in the accommodating chamber 111, the distribution of the fluid in the accommodating chamber 111 is more uniform, and the flow of the fluid is relatively smooth and smooth. The connecting pipe 140 is arranged in the accommodating chamber 111 of the housing 110 along the vertical direction (Z direction), which improves the space utilization rate of the accommodating chamber 111. It can be understood that the connecting pipe 140 and the control valve 150 share the space of the accommodating chamber 111 along the vertical direction (Z direction), further improving the space utilization rate of the accommodating chamber 111, so as to reduce the space occupation of the flow meter 100.

[0083] In some embodiments, two through holes are provided on the tube walls opposite to the connecting tube 120 and the measuring component 130, and the two through holes are spaced apart along a first direction (X direction); the measuring component 130 includes a transducer (not shown in the figure) and a controller (not shown in the figure), the transducer having an emitting end and a receiving end, the emitting end is provided corresponding to one of the two through holes, and the receiving end is provided corresponding to the other through hole, the emitting end is used to emit ultrasonic waves to the inner walls opposite to the connecting tube 120 and the measuring component 130, and the receiving end is used to receive ultrasonic waves reflected by the connecting tube 120; the controller is electrically connected to the transducer, and calculates the flow rate of the fluid based on the ultrasonic waves received by the receiving end.

[0084] Two through holes (not shown in the figure) are arranged on the wall of the connecting tube 120 along the second direction (Y direction) toward the measuring assembly 130. The two through holes penetrate the wall of the connecting tube 120 along the second direction (Y direction), that is, the through holes are connected to the connecting cavity 121 of the connecting tube 120. The measuring assembly 130 detects the flow rate of the fluid flowing in the connecting tube 120 through the through holes.

[0085] Specifically, the measuring component 130 includes a transducer, which has an emitting end and a receiving end. The emitting end can be set corresponding to one of the two through holes, and the receiving end is set corresponding to the other through hole. The emitting end emits ultrasonic waves into the connecting cavity 121. The ultrasonic waves enter the connecting tube 120 and are reflected to the through hole through the inner walls opposite to the connecting tube 120 and the measuring component 130, and are received by the receiving end of the transducer set corresponding to the through hole.

[0086] Furthermore, the measuring component 130 also includes a controller, which is electrically connected to the transducer. The controller can process data based on the ultrasonic waves emitted by the output end of the transducer and the ultrasonic waves received by the receiving end of the transducer, and calculate the flow rate of the fluid.

[0087] In some embodiments, the connecting tube 120 has at least one partition plate 122, which is located in the connecting cavity 121, extends along a first direction (X direction), and is protruded relative to the inner wall of the connecting tube 120 along a second direction (Y direction); the thickness of the partition plate 122 near the end of the connecting tube 120 is less than the thickness of the partition plate 122 in the middle of the connecting tube 120.

[0088] See also Figure 3 and Figure 5 The connecting tube 120 extends along the first direction (X direction), the fluid enters the connecting tube 120, and flows along the first direction (X direction) in the connecting cavity 121 of the connecting tube 120. It is not difficult to understand that the fluid is prone to form a mass flow during the flow in the connecting cavity 121, resulting in poor fluidity of the fluid.

[0089] The connecting tube 140 in this embodiment has at least one partition plate 122, which is located in the connecting cavity 121, connected to the inner walls of the connecting tube 120 and the measuring assembly 130, extending along the first direction (X direction), and protruding relative to the inner wall of the connecting tube 120 along the second direction (Y direction). In this way, the partition plate 122 divides the connecting cavity 121 into at least two flow channels. The at least two flow channels are spaced apart in the vertical direction (Z direction).

[0090] When the fluid flows in the connecting tube 120 along the first direction (X direction), the fluid is divided into multiple parts by the partition plate 122 and enters different flow channels, which can reduce the probability of the fluid flowing in a mass flow process, so that the fluid flows smoothly and gently, and the fluid enters each flow channel evenly.

[0091] It can be understood that there can be multiple partition plates 122, and the multiple partition plates 122 can be arranged in sequence along the first direction (X direction). In this way, the multiple partition plates 122 divide the connecting cavity 121 into two flow channels along the vertical direction (Z direction), and the two flow channels are connected to each other along the vertical direction (Z direction) through the gap between adjacent partition plates 122.

[0092] Of course, the plurality of partition plates 122 may also be distributed in an array in the communicating cavity 121 , so that a plurality of flow channels are formed in the communicating cavity 121 , and the plurality of flow channels are interconnected through the gaps between adjacent partition plates 122 .

[0093] It should be noted that the arrangement of the multiple partition plates 122 in the communicating cavity 121 in this embodiment is not limited to the structure indicated in the above example, and this embodiment does not make any specific limitation on this.

[0094] like Figure 3 and Figure 5 As shown, the thickness of the end of the partition plate 122 close to the connecting pipe 140 is less than the thickness of the partition plate 122 in the middle of the connecting pipe 140. That is, the thickness of the two ends of the partition plate 122 along the first direction (X direction) is relatively small, and the thickness of the middle of the partition plate 122 is relatively large. It is not difficult to understand that the cross section of the partition plate 122 is a shuttle-shaped structure. Further, each flow channel presents an approximately symmetrical trumpet shape along the first direction (X direction).

[0095] In a specific embodiment, there are multiple partition plates 122, and the multiple partition plates 122 are sequentially spaced apart along the thickness direction (Z direction) of the partition plates. In this way, the multiple partition plates 122 divide the connecting cavity 121 of the connecting pipe 120 into multiple flow channels along the third direction (Z direction), and the multiple flow channels are spaced apart from each other and are not connected to each other along the third direction (Z direction).

[0096] When the fluid flows in the connecting cavity 121 along the first direction (X direction), the fluid is divided into multiple parts to reduce the probability of group flow during the flow of the fluid. The flow of the fluid in the connecting cavity 121 is more stable and smooth. In addition, the multiple flow channels are set through the partition plate 122 to achieve uniformity of fluid flow in each flow channel.

[0097] In some embodiments, the flow meter 100 further includes at least one grid 160, which is disposed at one end of the connecting tube 120 away from the measuring assembly 130. The grid 160 can block impurities from entering the connecting tube 120 to prevent the impurities from damaging the measuring assembly 130, thereby ensuring the working stability and safety of the flow meter 100.

[0098] It can be understood that the connecting pipe 120 is connected to the outlet 116 of the housing 110, and the grille 160 is connected to the opposite ends of the connecting pipe 120 and the outlet 116. During the installation of the flow meter 100, external impurities can be prevented from entering the flow pipe.

[0099] Furthermore, in some embodiments, there may be two grilles 160 , and the two grilles 160 are spaced apart at the end of the connecting pipe 120 along the vertical direction (Z direction).

[0100] This embodiment provides a flow meter, including: a shell, a connecting pipe and a measuring assembly. The shell has an inlet, an outlet and a accommodating chamber, the inlet and the outlet are arranged at intervals along the first direction at the top of the shell, the inlet and the outlet are both connected to the accommodating chamber, and the fluid flows in the accommodating chamber; the connecting pipe is located in the accommodating chamber, the connecting pipe has a connecting chamber, the connecting chamber passes through both ends of the connecting pipe along the first direction, and one end of the connecting pipe is connected to the outlet; the measuring assembly is arranged on the connecting pipe along the second direction, and the measuring assembly is used to detect the flow rate of the fluid flowing through the connecting chamber along the first direction. Through such a structure, the space occupied by the flow meter can be reduced.

[0101] It should be noted that the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0102] In general, terms should be understood, at least in part, by the context in which they are used. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, depending, at least in part, on the context. Similarly, terms such as "a," "an," or "the" may also be understood to convey singular usage or to convey plural usage, depending, at least in part, on the context.

[0103] It should be easily understood that “on,” “above,” and “over” in this application should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above something” or “over,” but also may include the meaning of “above something” or “over” with no intervening features or layers therebetween (i.e., directly on something).

[0104] In addition, spatially relative terms, such as "below," "below," "below," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90° or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0105] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A flow meter, characterized in that: include: A shell, the shell having an inlet, an outlet and a receiving chamber, the inlet and the outlet are arranged at a distance from each other at the top of the shell along a first direction, the inlet and the outlet are both connected to the receiving chamber, and a fluid flows in the receiving chamber; A connecting pipe, the connecting pipe is located in the accommodating cavity, the connecting pipe has a connecting cavity, the connecting cavity passes through both ends of the connecting pipe along a first direction, and one end of the connecting pipe is connected to the outlet; a measuring component, the measuring component being disposed on the connecting tube along the second direction, and the measuring component being used to detect the flow rate of the fluid flowing through the connecting cavity along the first direction; The first direction is along a length direction of the shell, and the second direction is along a width direction of the shell.

2. The flow meter according to claim 1, characterized in that: It also includes a control valve, wherein the inlet of the control valve is connected to the connecting pipe, and the outlet of the control valve is connected to the outlet of the housing; The control valve is used to control a communication state between the communication pipe and the outlet of the housing.

3. The flow meter according to claim 2, characterized in that: The control valve comprises a first valve core and a first motor, wherein the first valve core is movably arranged at the inlet side of the control valve along the first direction; The first motor is connected to an end of the first valve core away from the inlet of the control valve along the first direction; the first motor drives the first valve core to move.

4. The flow meter according to claim 2, characterized in that: The control valve comprises a second valve core and a second motor, wherein the second valve core is movably arranged at the outlet side of the control valve in a vertical direction; The second motor is connected to an end of the second valve core away from the outlet of the housing along the vertical direction; the second motor drives the second valve core to move.

5. The flow meter according to any one of claims 1 to 4, characterized in that: It also includes a connecting pipe, the connecting pipe is located in the accommodating cavity, and one end of the connecting pipe is connected to the inlet of the shell; Along the first direction, one end of the connecting pipe away from the inlet and the end of the communicating pipe close to the inlet are staggered.

6. The flow meter according to claim 5, characterized in that: The connecting pipe includes a first extension section, the first extension section is connected to the inlet of the shell, the first extension section extends toward a side away from the inlet, and an end of the first extension section away from the inlet faces an outer wall of the connecting pipe.

7. The flow meter according to claim 5, characterized in that: The connecting pipe comprises a second extension section and a third extension section which are sequentially connected and communicated with each other, the second extension section is communicated with the inlet of the shell, and the second extension section extends toward a side away from the inlet; The third extension section extends along the first direction; An end of the third extension section away from the second extension section along the first direction and the connecting pipe are offset from each other.

8. The flow meter according to any one of claims 1 to 4, characterized in that: Two through holes are arranged on the tube wall opposite to the connecting tube and the measuring assembly, and the two through holes are arranged at intervals along the first direction; The measuring component includes a transducer and a controller, the transducer has an emitting end and a receiving end, the emitting end is arranged corresponding to one of the two through holes, and the receiving end is arranged corresponding to the other through hole, the emitting end is used to emit ultrasonic waves to the inner wall opposite to the connecting pipe and the measuring component, and the receiving end is used to receive the ultrasonic waves reflected by the connecting pipe; The controller is electrically connected to the transducer and calculates the flow rate of the fluid according to the ultrasonic wave received by the receiving end.

9. The flow meter according to any one of claims 1 to 4, characterized in that: The connecting pipe has at least one partition plate, the partition plate is located in the connecting cavity, the partition plate extends along the first direction, and the partition plate is protruded relative to the inner wall of the connecting pipe along the second direction; Along the first direction, the thickness of the end of the partition plate close to the connecting pipe is smaller than the thickness of the partition plate in the middle of the connecting pipe.

10. The flow meter according to claim 9, characterized in that: There are a plurality of partition plates, and the plurality of partition plates are sequentially spaced apart along a thickness direction of the partition plates.

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