Float flow meter without limitation of installation direction

Abstract

The utility model relates to the technical field of liquid flow metering, and provides a float flowmeter without limitation of installation direction, which comprises a main body, the main body is provided with a stroke channel, and the stroke channel is provided with an inlet and an outlet; the floater slides in the stroke channel; one end of the first elastic piece is arranged on the inner wall of the stroke channel, and the other end is arranged on the floater to provide force for the floater to approach the inlet. By means of the technical scheme, the problems that in the prior art, a traditional float flowmeter can only measure fluid entering from the bottom of the flowmeter and flowing out from the top of the flowmeter in a vertical mode, and the installation and use difficulty is increased are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid flow measurement, and in particular to a float flowmeter with no restrictions on installation direction. Background Art

[0002] A float flowmeter is an instrument specifically designed to measure the flow rate of liquids or gases in pipelines. Its operating principle is based on the variable area principle. A float is located within the flowmeter's vertical tapered tube, allowing it to move up and down. As fluid flows through the tube, the float rises due to the combined force of its own weight and the fluid's force. The greater the flow rate, the higher the float rises. By reading the float's position on the scale, the flow rate can be determined. However, due to the structural constraints of existing technologies, traditional float flowmeters can only measure fluids vertically, entering the meter from the bottom and exiting from the top. This bottom-in, top-out measurement method has certain limitations. For example, in complex pipeline layouts where the pipeline runs horizontally or at an angle, rather than vertically, traditional float flowmeters struggle to adapt and cannot accurately measure flow. Furthermore, in environments with limited space, the vertical installation requirement can make installation difficult or even impossible. Furthermore, the bottom-in, top-out method lacks flexibility in certain scenarios requiring multi-directional measurement or rapid changes in measurement direction, hindering flow monitoring and control during production. Utility Model Content

[0003] The utility model provides a float flowmeter with no restrictions on installation direction, which solves the problem in the related art that traditional float flowmeters can only measure fluids entering from the bottom and flowing out from the top in a vertical manner, which increases the difficulty of installation and use.

[0004] The technical solution of the utility model is as follows:

[0005] A float flowmeter with no restrictions on installation direction, comprising:

[0006] a main body, the main body having a travel passage, the travel passage having an inlet and an outlet;

[0007] a float, the float sliding in the travel channel;

[0008] A first elastic member, one end of which is arranged on the inner wall of the travel channel and the other end of which is arranged on the float, provides a force for the float to approach the inlet.

[0009] As a further technical solution, both ends of the stroke channel have limit parts, and the two limit parts are symmetrically arranged. The ends of the two limit parts close to each other each have a stop part, and one end of the first elastic member is arranged on the stop part close to the outlet side. After the float slides, it approaches or moves away from the stop part close to the inlet side. The limit part and the main body are an integral structure or a split structure.

[0010] As a further technical solution, the stroke channel has a first conical section and a cylindrical section, the outlet is located at one end of the cylindrical section, the first conical section and the cylindrical section are transitionally connected, and the float slides in the first conical section and the cylindrical section.

[0011] As a further technical solution, a liquid flow channel is formed between the float and the inner wall of the stroke channel, and the liquid flow channel is configured so that after the float slides from the end of the first conical section away from the cylindrical section to the end close to the cylindrical section, the cross-sectional area of ​​the liquid flow channel increases.

[0012] As a further technical solution, the stroke channel also has a second conical section and a necking section, the first conical section and the second conical section are transitionally connected to the two ends of the necking section respectively, and the second conical section, the necking section, the first conical section and the cylindrical section are arranged in sequence from the entrance to the exit.

[0013] As a further technical solution, one end of the first conical section close to the necking section has an inwardly concave arc surface section, and one end of the float close to the necking section has an outwardly convex arc surface.

[0014] As a further technical solution, it also includes:

[0015] a limit block, the limit block being arranged on the stop portion close to the inlet side, and after the float slides toward or away from the stop portion close to or away from the inlet side, the float abuts against or cancels the abutment with the limit block, and after abutment, the float is located in the concave arc surface segment;

[0016] An indicator is provided on the main body, the indicator is magnetically coupled to the float, and mounting portions are provided at both ends of the main body.

[0017] The variable area flowmeter with no installation direction restriction according to claim 3 further comprises:

[0018] A sliding block is slidably arranged in the cylindrical section, and the sliding block divides the cylindrical section into an upper cylindrical cavity and a lower cylindrical cavity. The upper cylindrical cavity is located on the side of the lower cylindrical cavity close to the inlet. The sliding block has a side connecting port and a central connecting port. The side connecting port and the central connecting port both connect the upper cylindrical cavity and the lower cylindrical cavity. After the float slides, it abuts against or cancels the abutment with the sliding block, and blocks or cancels blocking the central connecting port.

[0019] As a further technical solution, it also includes:

[0020] An outflow shell is arranged on the outer wall of the main body and is located around the cylindrical section. The outflow shell has an auxiliary flow channel. The auxiliary flow channel has an auxiliary liquid inlet and an auxiliary liquid outlet. The auxiliary liquid inlet is connected to the upper cylindrical cavity, and the auxiliary liquid outlet is connected to the lower cylindrical cavity.

[0021] As a further technical solution, the outer flow shell is an annular shell, the inner wall of the auxiliary flow channel has an inner conical surface, and further comprises:

[0022] A blocking block is arranged around the sliding block, and the blocking block is a frustum-shaped block, the blocking block has an outer conical surface, the auxiliary flow channel is surrounded by the inner wall of the outer flow shell and the outer conical surface, the auxiliary flow channel has a variable diameter flow channel section, and the variable diameter flow channel section is surrounded by the inner conical surface and the outer conical surface. The auxiliary liquid inlet, the auxiliary liquid outlet and the variable diameter flow channel section are configured so that after the sliding block drives the blocking block to slide, the auxiliary liquid outlet is expanded to increase the variable diameter flow channel section, or the auxiliary liquid inlet is reduced to reduce the variable diameter flow channel section;

[0023] A second elastic member, one end of which is arranged on the sliding block, and the other end of which is arranged on the main body, allows the sliding block to slide toward the inlet.

[0024] The working principle and beneficial effects of the utility model are as follows:

[0025] In the present utility model, when the fluid enters the stroke channel from the inlet, the fluid generates a thrust on the float, overcoming the elastic force of the first elastic member and pushing the float toward the outlet. As the flow rate changes, the position of the float in the stroke channel also changes accordingly. Due to the provision of the first elastic member, the float can stably move in the stroke channel under different flow rates and is not restricted by the installation direction. Whether installed horizontally, vertically or at an angle, it can accurately reflect changes in flow rate. This greatly improves the installation flexibility and scope of application of the float flowmeter, and can meet the needs of various complex installation environments. At the same time, the stable float movement and accurate flow reflection improve the accuracy and reliability of the measurement, providing more effective data support for industrial production and flow monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The preferred embodiments will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0027] Figure 1 This is a schematic diagram of the structure of the utility model;

[0028] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0029] Figure 3 for Figure 2 A partial enlarged structural diagram of the middle part;

[0030] Figure 4 for Figure 2 A schematic diagram of the partially enlarged structure of part B in the middle;

[0031] Figure 5 This is a schematic diagram of the sliding block structure in the utility model.

[0032] In the figure: main body-1, stroke channel-101, inlet-102, outlet-103, limiting part-104, blocking part-105, first conical section-106, cylindrical section-107, second conical section-108, necking section-109, concave arc surface section-110, mounting part-111, upper cylindrical cavity-112, lower cylindrical cavity-113, float-2, liquid flow channel-201, convex arc surface-202, first elastic member-3, limiting block-4, indicator-5, sliding block-6, side connecting port-601, central connecting port-602, outer flow shell-7, auxiliary flow channel-701, auxiliary liquid inlet-701, auxiliary liquid outlet-702, inner conical surface-703, variable diameter flow channel section-704, blocking block-8, outer conical surface-801, second elastic member-9. DETAILED DESCRIPTION

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without inventive work.

[0034] To simplify the drawings, only the parts relevant to the utility model are schematically shown in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically shown or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0035] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0036] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0037] Reference Figures 1 to 5 The embodiment of the present invention provides a float flowmeter with no installation direction restrictions, including a main body 1, the main body 1 having a stroke channel 101, the stroke channel 101 having an inlet 102 and an outlet 103; a float 2 sliding in the stroke channel 101; a first elastic member 3 having one end disposed on the inner wall of the stroke channel 101 and the other end disposed on the float 2, providing a force for the float 2 to approach the inlet 102.

[0038] In this embodiment, when the fluid enters the stroke channel 101 from the inlet 102, the fluid generates a thrust on the float 2, overcoming the elastic force of the first elastic member 3 and pushing the float 2 toward the outlet 103. As the flow rate changes, the position of the float 2 in the stroke channel 101 also changes accordingly. Due to the setting of the first elastic member 3, the float 2 can move stably in the stroke channel 101 under different flow rates and is not restricted by the installation direction. Whether installed horizontally, vertically or at an angle, it can accurately reflect changes in flow rate. This greatly improves the installation flexibility and scope of application of the float flowmeter, and can meet the needs of various complex installation environments. At the same time, the stable movement of the float 2 and the accurate flow reflection improve the accuracy and reliability of the measurement, providing more effective data support for industrial production and flow monitoring.

[0039] Furthermore, both ends of the stroke channel 101 have limit portions 104, and the two limit portions 104 are symmetrically arranged. The ends of the two limit portions 104 close to each other each have a stop portion 105. One end of the first elastic member 3 is arranged on the stop portion 105 on the side close to the outlet 103. After the float 2 slides, it approaches or moves away from the stop portion 105 on the side close to the inlet 102. The limit portion 104 and the main body 1 are an integral structure or a split structure.

[0040] In this embodiment, the arrangement of the limiter 104 and the stopper 105 restricts the movement of the float 2, ensuring that the float 2 always slides within a spatial channel capable of accurately measuring flow. When fluid enters the travel channel 101 from the inlet 102, the float 2, under the thrust of the fluid, overcomes the elastic force of the first elastic member 3 and moves toward the outlet 103. As the flow rate increases, the float 2 gradually approaches the stopper 105 on the outlet 103 side. When the flow rate decreases, the elastic force of the first elastic member 3 gradually moves the float 2 away from the stopper 105 on the outlet 103 side and toward the stopper 105 on the inlet 102 side. When the installation orientation changes, for example, from vertical to horizontal or tilted, the symmetrical arrangement of the limiter 104 and the stopper 105, as well as the action of the first elastic member 3, allows the float 2 to continue to accurately move within the travel channel 101 according to the flow rate. The symmetrically arranged limiter 104 and stopper 105, in conjunction with the first elastic member 3, provide a stable and precise range of motion for the float 2. This ensures that the movement of the float 2 accurately reflects flow rate changes regardless of installation orientation. This significantly enhances the versatility and adaptability of the variable area flowmeter, enabling it to function in a variety of complex and changing installation environments, ensuring measurement accuracy and reliability. This structural design also reduces the risk of measurement errors and equipment damage caused by installation orientation issues, thereby extending the service life of the variable area flowmeter.

[0041] There are two situations regarding the limiting portion 104 and the main body 1. One is a split structure, that is, the limiting portion 104 and the main body 1 are manufactured separately; the other is to connect the separated limiting portion 104 and the main body 1 into an integrated structure through subsequent processing, such as welding. In the case of a split structure, the main body 1 and the limiting portion 104 are produced separately. When the fluid passes through the stroke channel 101, the separated limiting portion 104 can play a role in limiting the movement range of the float 2. After being connected into an integrated structure by welding or other means, the integrated setting will be more stable when the fluid flows through the stroke channel 101, but both can effectively limit the movement of the float 2. The setting of the split structure provides more flexibility in manufacturing. The main body 1 and the limiting portion 104 can be manufactured separately according to different material properties and process requirements, thereby improving production efficiency and reducing costs. Connecting into an integrated structure by welding or other means enhances the overall stability and reliability, reduces the looseness and errors that may occur between components, and thus ensures the accuracy of measurement. This diversity of processes enables the selection of more appropriate manufacturing methods based on actual needs and production conditions during the production process, thus meeting the performance and cost requirements of different users for float flowmeters.

[0042] Furthermore, the travel channel 101 has a first conical section 106 and a cylindrical section 107 , the outlet 103 is located at one end of the cylindrical section 107 , the first conical section 106 and the cylindrical section 107 are transitionally connected, and the float 2 slides in the first conical section 106 and the cylindrical section 107 .

[0043] In this embodiment, fluid enters the travel channel 101 from the inlet 102. When the flow rate is low, the float 2 floats within the first conical section 106. As the flow rate gradually increases, the float 2 moves from the conical section to the cylindrical section 107. When the flow rate reaches a certain level, the float 2 remains within the cylindrical section 107. This structural design has significant advantages. When the flow rate is low, the position of the float 2 within the conical section changes significantly, accurately reflecting subtle changes in low flow rates and improving the accuracy of low flow rate measurements. When the flow rate increases, the float 2 enters the cylindrical section 107 and remains there. At this time, the cylindrical section 107 can adapt to high flow rates. The design of the cylindrical section 107 is to reflect a flow rate state. When the liquid flow rate is excessive and exceeds the range of the corresponding device, the flow rate will be displayed as an excessively high flow rate on the external readout device while ensuring normal liquid flow. This configuration ensures the stability and accuracy of the flowmeter when measuring high flow rates. At the same time, this structure can work reliably regardless of the installation direction, providing accurate guarantee for flow measurement under various complex installation conditions and broadening the scope of application of the flow meter.

[0044] Furthermore, a liquid flow channel 201 is formed between the float 2 and the inner wall of the stroke channel 101. The liquid flow channel 201 is configured so that when the float 2 slides from the end of the first tapered section 106 away from the cylindrical section 107 to the end close to the cylindrical section 107, the cross-sectional area of ​​the liquid flow channel 201 increases.

[0045] In this embodiment, when fluid enters the stroke channel 101 from the inlet 102 and the flow rate is low, the float 2 is located at the end of the first tapered section 106 away from the cylindrical section 107. As the flow rate increases, the float 2 slides from the end of the first tapered section 106 away from the cylindrical section 107 to the end closer to the cylindrical section 107. During this process, the cross-sectional area of ​​the liquid flow channel 201 gradually increases due to the change in the position of the float 2. This design enables more accurate flow measurement. At low flow rates, the smaller cross-sectional area of ​​the liquid flow channel 201 allows the float 2 to respond more sensitively to flow rate changes, improving measurement accuracy. As the flow rate increases, the increase in the cross-sectional area of ​​the liquid flow channel 201 can accommodate larger flow rates, ensuring the flowmeter's measurement accuracy and stability over a wide flow range. Furthermore, this structure is not restricted by installation direction and can function effectively regardless of how the flowmeter is installed, providing a reliable solution for flow measurement under various operating conditions.

[0046] Furthermore, the travel channel 101 also has a second conical section 108 and a necking section 109. The first conical section 106 and the second conical section 108 are transitionally connected to the two ends of the necking section 109 respectively. The second conical section 108, the necking section 109, the first conical section 106 and the cylindrical section 107 are arranged in sequence from the inlet 102 to the outlet 103.

[0047] In this embodiment, when the fluid enters the stroke channel 101 from the inlet 102, it first passes through the second tapered section 108. Due to the presence of the second tapered section 108, the fluid can change its flow direction relatively smoothly and achieve backflow. This gentle slope effectively reduces the pressure loss and ensures the stability of the fluid flow. The setting of the second tapered section 108 plays an important role. Compared with the right-angle structure, its gentle slope can significantly reduce the pressure loss. The reduction in pressure loss not only reduces energy consumption, but also helps to improve the efficiency of the system. At the same time, the smooth transition ensures that the flow state of the fluid is relatively stable, so that the shape of the fluid can be maintained, thereby improving the accuracy and reliability of the measurement. Regardless of the installation direction, the second tapered section 108 can play its role in reducing pressure loss and stabilizing the flow state, ensuring that the performance of the flow meter is not affected by the installation conditions, and further improving the versatility and practicality of the flow meter.

[0048] Furthermore, one end of the first tapered section 106 close to the necking section 109 has an inner concave arc surface section 110 , and one end of the float 2 close to the necking section 109 has an outer convex arc surface 202 .

[0049] In this embodiment, when fluid flows in the stroke channel 101, with the elastic member acting as a source of resistance, the float 2 moves according to the flow rate. Due to the presence of the concave arc segment 110 of the first tapered section 106 and the convex arc surface 202 of the float 2, the shape of the liquid flow channel 201 changes. This change regulates the force exerted by the liquid flow on the float 2, thereby achieving regulation of the uniform movement of the float 2. The arrangement of the concave arc segment 110 and the convex arc surface 202 enables precise control of the uniformity of the movement of the float 2 by adjusting the liquid flow channel 201, even in complex situations where the elastic member generates resistance. This significantly improves the measurement accuracy and stability of the flowmeter, ensuring the accuracy and reliability of the measurement results. Furthermore, this adjustment mechanism operates normally regardless of the flowmeter's installation orientation, unaffected by the installation angle and position, fully guaranteeing the flowmeter's performance under various operating conditions.

[0050] Furthermore, it also includes a limit block 4 arranged on the stop portion 105 on the side close to the inlet 102. After the float 2 slides toward the stop portion 105 on the side close to or away from the inlet 102, the float 2 abuts against or cancels the abutment with the limit block 4, and after abutment, the float 2 is located in the concave arc surface section 110; the indicator 5 is arranged on the main body 1, the indicator 5 is magnetically coupled with the float 2, and the two ends of the main body 1 have mounting portions 111.

[0051] In this embodiment, when the fluid flows through the stroke channel 101, the float 2 will slide toward or away from the stopper 105 on the side of the inlet 102 according to the change in flow rate. During the sliding process, the float 2 will abut or cancel the abutment with the limit block 4. When the float 2 abuts the limit block 4, its position is exactly within the concave arc section 110 at one end of the first conical section 106 near the necking section 109. Unlike the case where there is only the stopper 105, after the limit block 4 is added, the float 2 abuts against the limit block 4. The setting of the limit block 4 can provide a more stable abutment limit compared to the case where there is only the stopper 105. When there is only the stopper 105, the float 2 may shake when it is limited, but the limit block 4 can effectively avoid this situation. It allows the float 2 to remain stable when it is limited, preventing the flow instability caused by the shaking of the float 2, thereby significantly improving the accuracy and stability of the measurement. Regardless of the installation direction of the flow meter, the limit block 4 can function reliably to ensure that the limit state of the float 2 is stable and reliable, providing a strong guarantee for the accurate measurement of the flow meter.

[0052] When fluid flows within stroke channel 101, causing float 2 to move, the magnetic coupling between float 2 and indicator 5 transmits the change in float 2's position to indicator 5 via magnetic force. Through magnetic coupling, indicator 5 accurately reflects float 2's position changes without direct contact with float 2, thereby providing flow rate indication. This non-contact coupling reduces friction and wear between components, extending the device's service life and measurement stability. Furthermore, regardless of how the flowmeter is installed, magnetic coupling effectively transmits information about float 2's movement, ensuring that indicator 5 accurately indicates flow rate regardless of its installation orientation.

[0053] The mounting portion 111 specifically utilizes a flange mounting portion 111, which provides a secure and reliable connection and excellent sealing performance. This makes installation and removal convenient, and facilitates maintenance and replacement. Furthermore, the flange mounting method is highly versatile and compatible with various pipes and equipment with standard flange interfaces, significantly increasing the flowmeter's applicability and installation flexibility. Regardless of the flowmeter's installation orientation and position, the flange mounting portion 111 ensures a stable and tight connection, providing a strong guarantee for accurate flow measurement.

[0054] Furthermore, it includes a sliding block 6, which is slidably arranged in the cylindrical section 107. The sliding block 6 divides the cylindrical section 107 into an upper cylindrical cavity 112 and a lower cylindrical cavity 113. The upper cylindrical cavity 112 is located on the side of the lower cylindrical cavity 113 close to the inlet 102. The sliding block 6 has a side connecting port 601 and a central connecting port 602. The side connecting port 601 and the central connecting port 602 both connect the upper cylindrical cavity 112 and the lower cylindrical cavity 113. After the float 2 slides, it abuts against or cancels the abutment with the sliding block 6, and blocks or cancels the blocking of the central connecting port 602.

[0055] In this embodiment, a sliding block 6 is also provided. The sliding block 6 can slide in the cylindrical section 107, thereby dividing the cylindrical section 107 into an upper cylindrical cavity 112 and a lower cylindrical cavity 113, and the upper cylindrical cavity 112 is located on the side of the lower cylindrical cavity 113 close to the inlet 102. The sliding block 6 has a side connecting port 601 and a central connecting port 602, both of which can connect the upper cylindrical cavity 112 and the lower cylindrical cavity 113. When the fluid flows through, the float 2 will slide according to the flow rate. During the sliding process, the float 2 will abut against or cancel the abutment with the sliding block 6. When the float 2 abuts against the sliding block 6, it will block or cancel the blocking of the central connecting port 602 of the sliding block 6. This design solves the problem of measurement difficulties caused by the large elastic force of the elastic member in the cylindrical section 107. Although the flow rate detection accuracy of the cylindrical section 107 is not as high as that of the conical section due to the contact between the slider 6 and the float 2, it can still roughly reflect the flow rate of extremely large liquid flows, providing a valuable reference for subsequent adjustments. Even under extremely large liquid flow conditions, the user can obtain a preliminary understanding of the flow rate and determine whether the entire liquid flow is in an over-range state based on the indication. At this point, non-metering tasks such as cleaning can be completed, and subsequent adjustments can be carried out efficiently and accurately.

[0056] Furthermore, it also includes an outflow shell 7 arranged on the outer wall of the main body 1, located around the cylindrical section 107, the outflow shell 7 has an auxiliary flow channel 701, the auxiliary flow channel 701 has an auxiliary liquid inlet 701 and an auxiliary liquid outlet 702, the auxiliary liquid inlet 701 is connected to the upper cylindrical cavity 112, and the auxiliary liquid outlet 702 is connected to the lower cylindrical cavity 113.

[0057] In this embodiment, considering that the float 2 and the sliding block 6 will form a whole body after abutting and slide toward the outlet 103, in order to ensure good driving force for this whole body and stable flow rate, an outflow shell 7 is specially provided. The outflow shell 7 is located on the outer wall of the main body 1 and is located around the cylindrical section 107. The outflow shell 7 has an auxiliary flow channel 701, and the auxiliary flow channel 701 is provided with an auxiliary liquid inlet 701 and an auxiliary liquid outlet 702. The auxiliary liquid inlet 701 is connected to the upper cylindrical cavity 112, and the auxiliary liquid outlet 702 is connected to the lower cylindrical cavity 113. In actual operation, through the provision of the auxiliary flow channel 701, on the basis of ensuring the liquid flow of the original cylindrical section 107, another auxiliary flow channel 701 is provided for the whole body formed by the float 2 and the sliding block 6. The liquid flow flowing out of the auxiliary liquid outlet 702 converges into the lower cylindrical cavity 113, effectively ensuring the original liquid flow diameter and state. This design not only enhances the driving force on the float 2 and the sliding block 6 as a whole, ensuring their stable sliding in the cylindrical section 107 , but also helps maintain the stability and flow rate of the liquid flow, thereby improving the measurement accuracy and reliability of the flowmeter in the cylindrical section 107 .

[0058] Furthermore, the outer flow shell 7 is an annular shell, the inner wall of the auxiliary flow channel 701 has an inner conical surface 703, and further includes:

[0059] The blocking block 8 is arranged around the sliding block 6 and is of a frustum shape. The blocking block 8 has an outer conical surface 801. The auxiliary flow channel 701 is surrounded by the inner wall of the outer flow shell 7 and the outer conical surface 801. The auxiliary flow channel 701 has a variable diameter flow channel section 704, which is surrounded by the inner conical surface 703 and the outer conical surface 801. The auxiliary liquid inlet 701, the auxiliary liquid outlet 702 and the variable diameter flow channel section 704 are configured so that after the sliding block 6 drives the blocking block 8 to slide, the auxiliary liquid outlet 702 is expanded to increase the variable diameter flow channel section 704, or the auxiliary liquid inlet 701 is reduced to reduce the variable diameter flow channel section 704;

[0060] The second elastic member 9 has one end disposed on the sliding block 6 and the other end disposed on the main body 1 , so as to enable the sliding block 6 to slide toward the inlet 102 .

[0061] In this embodiment, the annular housing is located on the outer wall of the main body 1 near the outlet 103. At this location, the liquid flow requires a significant pushing effect to produce a stable movement of the float 2, while also ensuring the stability of the liquid flow in the main stroke channel 101. In view of this, the present invention further provides a block 8 having an outer tapered surface 801 on the block 8, which forms a variable diameter flow path surface between the inner tapered surface 703 of the auxiliary flow path 701. When the sliding block 6 and the block 8 slide downward synchronously, the inner diameter of the variable diameter flow path section 704 decreases, and the diameter of the liquid flow diverted from the variable diameter flow path section 704 also decreases, which correspondingly increases the liquid flow rate and the impact force of the liquid on the block 8. This ensures that even under extremely high flow conditions, the device can still maintain sufficient stability and a certain degree of accuracy for high-flow flow detection, facilitating emergency handling by operators and improving the efficiency of subsequent adjustments. The provision of a second elastic member 9 can help the sliding block 6 return to its original position and make the sliding block 6 and float 2 sliding toward the outlet 103 more stable.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A float flowmeter with no restrictions on installation direction, characterized in that: include: A main body (1), the main body (1) having a travel channel (101), the travel channel (101) having an inlet (102) and an outlet (103); a float (2), the float (2) sliding in the travel channel (101); A first elastic member (3), one end of which is arranged on the inner wall of the travel channel (101), and the other end of which is arranged on the float (2), providing a force for the float (2) to approach the inlet (102).

2. The variable area flowmeter with no installation direction restriction according to claim 1, characterized in that: The two ends of the travel channel (101) have limiting portions (104), the two limiting portions (104) are symmetrically arranged, and the ends of the two limiting portions (104) close to each other each have a stop portion (105). One end of the first elastic member (3) is arranged on the stop portion (105) close to the outlet (103). After the float (2) slides, it approaches or moves away from the stop portion (105) close to the inlet (102). The limiting portion (104) and the main body (1) are an integral structure or a separate structure.

3. The variable area flowmeter with no installation direction restriction according to claim 2, characterized in that: The travel channel (101) has a first conical section (106) and a cylindrical section (107), the outlet (103) is located at one end of the cylindrical section (107), the first conical section (106) and the cylindrical section (107) are transitionally connected, and the float (2) slides in the first conical section (106) and the cylindrical section (107).

4. The variable area flowmeter with no installation direction restriction according to claim 3, characterized in that: A liquid flow channel (201) is formed between the float (2) and the inner wall of the stroke channel (101). The liquid flow channel (201) is configured so that when the float (2) slides from an end of the first conical section (106) away from the cylindrical section (107) to an end close to the cylindrical section (107), the cross-sectional area of ​​the liquid flow channel (201) increases.

5. The variable area flowmeter with no installation direction restriction according to claim 3, characterized in that: The travel channel (101) further comprises a second tapered section (108) and a necking section (109); the first tapered section (106) and the second tapered section (108) are transitionally connected to both ends of the necking section (109), respectively; the second tapered section (108), the necking section (109), the first tapered section (106) and the cylindrical section (107) are arranged in sequence from the inlet (102) to the outlet (103).

6. The variable area flowmeter with no installation direction restriction according to claim 5, characterized in that: One end of the first conical section (106) close to the necking section (109) has an inwardly concave arc surface section (110), and one end of the float (2) close to the necking section (109) has an outwardly convex arc surface (202).

7. The variable area flowmeter with no installation direction restriction according to claim 6, characterized in that: Also includes: a limit block (4), the limit block (4) being arranged on the stop portion (105) on the side close to the inlet (102); after the float (2) slides toward or away from the stop portion (105) on the side close to or away from the inlet (102), the float (2) abuts against or cancels the abutment with the limit block (4), and after the abutment, the float (2) is located in the concave arc surface segment (110); An indicator (5) is provided on the main body (1), the indicator (5) is magnetically coupled to the float (2), and both ends of the main body (1) have mounting portions (111).

8. The variable area flowmeter with no installation direction restriction according to claim 3, further comprising: A sliding block (6) is slidably arranged in the cylindrical section (107). The sliding block (6) divides the cylindrical section (107) into an upper cylindrical cavity (112) and a lower cylindrical cavity (113). The upper cylindrical cavity (112) is located on a side of the lower cylindrical cavity (113) close to the inlet (102). The sliding block (6) has a side communication port (601) and a central communication port (602). The side communication port (601) and the central communication port (602) both communicate with the upper cylindrical cavity (112) and the lower cylindrical cavity (113). After sliding, the float (2) abuts against or cancels abutment with the sliding block (6) and blocks or cancels blocking of the central communication port (602).

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