A multifunctional flow meter that is easy to install

Abstract

The present invention discloses a multifunctional flowmeter that is easy to install, comprising: a tube body, the outer side of which is surrounded by a mounting ring; a mounting ring, both end surfaces of which are connected to magnetic plates; a transmission shaft, the bottom end of which is connected to a bevel gear; a box body, the interior of which is equipped with a driving device; a meter head, which is mounted on the top of the box body and is connected to a cap via a connecting pipe; a sealing member, which comprises an inner tube, an outer tube and a limiting boss, the inner tube passing through the outer tube and the limiting boss; an orifice plate, which is mounted between an adjusting left plate and an adjusting right plate; an adjusting right plate, the adjusting right plate comprising a gear ring and a baffle. The multifunctional flowmeter that is easy to install adjusts the aperture of the orifice plate by rotating the adjusting left plate and the adjusting right plate, so that the measurement accuracy of the flowmeter is adapted to the actual situation of the fluid, thereby ensuring the measurement effect, and utilizes the force between the magnetic plate and the shrapnel to squeeze the airbag, thereby achieving a sealing effect.

Description

Technical Field

[0001] The present invention relates to the technical field related to flow meters, and in particular to a multifunctional flow meter that is easy to install. Background Art

[0002] A flow meter is an instrument used to measure the flow of fluid in a pipe or open channel. Flow measurement is widely used in industrial and agricultural production, national defense construction, scientific research, foreign trade, and all areas of people's lives.

[0003] A differential pressure flowmeter is an instrument that calculates flow based on the differential pressure generated by the interaction between a flow detection element installed in a pipeline and the fluid, known fluid conditions, and the geometric dimensions of the detection element and the pipeline. Flowmeters in the prior art usually use a fixed orifice plate as a throttling element. However, in actual measurement processes, it is found that the fluid flow in the pipeline changes dynamically, and the aperture of the fixed orifice plate does not change, resulting in poor measurement results. In addition, the installation position of the orifice plate on the flowmeter tube body has high requirements for sealing, which increases the difficulty of on-site installation. Summary of the Invention

[0004] In order to fill the gap in the market, the present invention provides a multifunctional flow meter that is easy to install.

[0005] The purpose of the present invention is to provide a multifunctional flow meter that is easy to install, so as to solve the problem that the flow meter in the prior art proposed in the above background technology usually adopts a fixed orifice plate as a throttling device, but in the actual measurement process, it is found that the fluid flow in the pipeline is dynamically changing, and the aperture of the fixed orifice plate is unchanged, resulting in poor measurement effect, and the installation position of the orifice plate on the flow meter pipe body has high requirements on sealing, which increases the difficulty of on-site installation.

[0006] To achieve the above object, the present invention provides the following technical solution: a multifunctional flow meter that is easy to install, comprising:

[0007] A tube body, wherein the outer side of the tube body is surrounded by a mounting ring, and a sealing member is embedded in the top of the tube body;

[0008] A mounting ring, wherein both end surfaces of the mounting ring are connected to magnetic plates, and an outer ring surface of the mounting ring is connected to a box body;

[0009] A transmission shaft, wherein the bottom end of the transmission shaft is connected to the bevel gear, the top end of the transmission shaft passes through the seal and enters the box body, and bristles are installed on the side of the transmission shaft;

[0010] A box body, wherein a driving device is installed inside the box body, and rotating shafts are installed at both ends of the driving device, and the rotating shafts are connected to the transmission shaft through a transmission assembly;

[0011] A meter head is installed on the top of the box body, and the meter head is connected to the cap through a connecting pipe;

[0012] A sealing member, the sealing member comprising an inner tube, an outer tube and a limiting boss, the inner tube passing through the outer tube and the limiting boss, a spring plate connected to the bottom end of the inner tube, and a first airbag bonded to the outer surface of the spring plate;

[0013] An orifice plate is installed between the left adjustment plate and the right adjustment plate, and a first through hole is opened at the center of the orifice plate;

[0014] The right adjusting plate includes a gear ring and a baffle. The gear ring is adapted to the bevel gear. A second through hole is formed between the baffle and the inner annular surface of the gear ring.

[0015] Furthermore, the adjusting left plate and the adjusting right plate are symmetrically distributed about the orifice plate, the edges of the adjusting left plate and the adjusting right plate are embedded in the inner wall of the tube body, and the shapes and sizes of the adjusting left plate and the adjusting right plate are the same.

[0016] Furthermore, both ends of the transmission shaft are connected to the transmission assembly and the bevel gear respectively, bristles are provided on the transmission shaft between the bevel gear and the seal, and the diameter of the transmission shaft is smaller than the diameter of the inner tube.

[0017] Furthermore, the mounting ring, the tube body and the orifice plate are nested in sequence from outside to inside, the magnetic plate is in an arc-shaped structure, the inner arc surface of the magnetic plate is in contact with the outer surface of the tube body, and the magnetic plate corresponds to the spring.

[0018] Furthermore, the upper and lower surfaces of the box body are respectively connected to the meter head and the mounting ring, the box body is located above the cap, the driving device drives the rotating shaft to rotate, and the transmission assembly connects the rotating shaft and the transmission shaft.

[0019] Furthermore, the sealing member further includes a spring sheet, which is an arc-shaped metal sheet. A first airbag is sandwiched between the spring sheet and the inner wall of the tube body, and the first airbag is connected to the second airbag.

[0020] Furthermore, the second airbag is located between the inner tube and the outer tube, the top of the outer tube is connected to a limiting boss, the limiting boss and the upper part of the outer tube are fixed on the inner tube, and a notch is opened at the lower part of the outer tube.

[0021] Furthermore, a cap is installed on the inner tube above the limiting boss, and a connecting pipe is connected to the front side of the cap. The connecting pipe is connected to the interior of the tube body, and the other end of the connecting pipe is connected to the meter head.

[0022] Furthermore, the gear ring is provided with a helical tooth surface, the helical tooth surface is engaged with the bevel gear, the baffle partially blocks the first through hole, and the second through hole is connected to the first through hole.

[0023] Compared with the prior art, the beneficial effects of the present invention are: the multifunctional flow meter is easy to install, the structure is reasonably set up, and the aperture of the orifice plate is adjusted by rotating the left adjustment plate and the right adjustment plate, so that the measurement accuracy of the flow meter is suitable for the actual situation of the fluid, and the measurement effect is guaranteed. The force between the magnetic plate and the shrapnel is used to squeeze the airbag, so that the airbag expands to fill the gap at the connection between the seal and the tube body, thereby achieving a sealing effect, facilitating installation and disassembly, and the transmission shaft is used to drive the gear to rotate. At the same time, a brush is provided on the transmission shaft to achieve a cleaning effect on the adjustment plate.

[0024] 1. Providing a mounting ring on the tube body not only enhances the stability of the tube body, but also allows the magnetic plate connected to the mounting ring to adhere to the surface of the tube body. The magnetic plate and the spring sheet on the inner wall of the tube body generate an attractive force, thereby enhancing the connection between the spring sheet and the tube wall. In addition, the first airbag bonded to the spring sheet is squeezed, allowing gas to enter the second airbag, which then expands to eliminate the gap between the seal and the tube body.

[0025] 2. Use the baffles on the left and right plates to block the through holes of the orifice plate, thereby achieving the effect of changing the aperture. The different rotation angles of the adjustment plates make the blocking ranges of the two baffles different, which is convenient for adjustment according to the actual situation of the fluid;

[0026] 3. A cap is mounted on the seal, which is connected to the meter head through a connecting pipe. Since the diameter of the seal is larger than the transmission shaft, the connecting pipe, cap and seal together form a pressure channel connecting the meter head and the pipe body, which is convenient for measuring the pressure difference between the two pipe bodies before and after the orifice plate, avoiding the need to drill an additional pressure channel. The structure is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a front view schematic diagram of the structure of the present invention;

[0028] Figure 2 It is a front cross-sectional schematic diagram of the structure of the present invention;

[0029] Figure 3 A schematic side view of the tube body and the orifice plate of the structure of the present invention;

[0030] Figure 4 A side cross-sectional schematic diagram of the structure of the present invention;

[0031] Figure 5 This is an overall schematic diagram of the adjustment right plate of the structure of the present invention;

[0032] Figure 6 This is an overall schematic diagram of the sealing member of the present invention.

[0033] In the figure: 1. Tube body; 2. Mounting ring; 3. Transmission shaft; 4. Box body; 5. Header; 6. Seal; 7. Orifice plate; 8. Adjustment left plate; 9. Adjustment right plate; 21. Magnetic plate; 31. Bristles; 32. Bevel gear; 33. Helical tooth surface; 41. Driving device; 42. Rotating shaft; 43. Transmission assembly; 51. Connecting pipe; 52. Cap; 61. Inner tube; 62. Outer tube; 63. Shrapnel; 64. Limiting boss; 65. Notch; 66. First airbag; 67. Second airbag; 71. First through hole; 91. Ring gear; 92. Baffle; 93. Second through hole. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] Specific implementation method 1: Please refer to Figure 1-6 The present invention provides a technical solution: a multifunctional flow meter that is easy to install, comprising:

[0036] The tube body 1 is surrounded by a mounting ring 2, and the top of the tube body 1 is embedded with a seal 6;

[0037] Mounting ring 2, both end surfaces of the mounting ring 2 are connected to magnetic plates 21, and the outer ring surface of the mounting ring 2 is connected to the box body 4;

[0038] The transmission shaft 3 has a bottom end connected to a bevel gear 32, and a top end of the transmission shaft 3 passes through a seal 6 and enters the box body 4. Brushes 31 are installed on the side of the transmission shaft 3;

[0039] The box body 4 has a driving device 41 installed inside. The driving device 41 has rotating shafts 42 installed at both ends. The rotating shafts 42 are connected to the transmission shaft 3 through a transmission assembly 43.

[0040] The meter head 5 is installed on the top of the box body 4 and is connected to the cap 52 through a connecting tube 51;

[0041] The sealing member 6 includes an inner tube 61, an outer tube 62, and a limiting boss 64. The inner tube 61 passes through the outer tube 62 and the limiting boss 64. The bottom end of the inner tube 61 is connected to a spring piece 63. The outer surface of the spring piece 63 is bonded to a first airbag 66.

[0042] The orifice plate 7 is installed between the left adjustment plate 8 and the right adjustment plate 9, and a first through hole 71 is opened at the center of the orifice plate 7;

[0043] Adjust the right plate 9 , which includes a gear ring 91 and a baffle 92 . The gear ring 91 is adapted to the bevel gear 32 , and a second through hole 93 is formed between the baffle 92 and the inner annular surface of the gear ring 91 .

[0044] When using this easy-to-install multifunctional flowmeter, the tube body 1 is connected to the measuring pipeline, and the fluid in the pipeline enters the tube body 1. The driving device 41 inside the box body 4 is used to drive the rotating shaft 42 to rotate, and the rotating shaft 42 drives the transmission shaft 3 to rotate. The transmission shaft 3 drives the bevel gear 32 at the bottom to rotate, and the bevel gear 32 drives the adjustment left plate 8 and the adjustment right plate 9 to rotate, so that the position of the baffle 92 changes, thereby blocking the first through hole 71 and changing the measuring range. The fluid flows through the through hole, causing different pressure differences on both sides of the through hole. The header 5 measures the pressure difference on both sides through the connecting tube 51 and the seal 6, thereby realizing the measurement of the fluid flow rate. During the rotation process, the adjustment left plate 8 and the adjustment right plate 9 will contact the brush 31 installed on the transmission shaft 3, thereby achieving a cleaning effect.

[0045] Specific implementation method 2: This implementation method is a further limitation of specific implementation method 1. Figure 1 、 Figure 2 and Figure 5 As shown, the adjusting left plate 8 and the adjusting right plate 9 are symmetrically distributed about the orifice plate 7, the edges of the adjusting left plate 8 and the adjusting right plate 9 are embedded in the inner wall of the tube body 1, the shapes and sizes of the adjusting left plate 8 and the adjusting right plate 9 are the same, the movement directions of the adjusting left plate 8 and the adjusting right plate 9 are opposite, and the baffle 92 changes from a overlapping state to an unfolded state, thereby expanding the shielding range.

[0046] Specific implementation method three: This implementation method is a further limitation of specific implementation method one, such as Figure 2 As shown, the two ends of the transmission shaft 3 are respectively connected to the transmission assembly 43 and the bevel gear 32. Bristles 31 are provided on the transmission shaft 3 between the bevel gear 32 and the seal 6. The diameter of the transmission shaft 3 is smaller than the diameter of the inner tube 61. The transmission shaft 3 drives the bevel gear 32 to rotate, and the bristles 31 on the transmission shaft 3 rotate at the same time. The size of the transmission shaft 3 is smaller than the inner tube 61, which facilitates the insertion of the transmission shaft 3 into the inner tube 61, and the bristles 31 can smoothly enter the tube body 1.

[0047] Specific embodiment four: This embodiment is a further limitation of specific embodiment one. The mounting ring 2, the tube body 1 and the orifice plate 7 are nested in sequence from the outside to the inside. The magnetic plate 21 has an arc-shaped structure. The inner arc surface of the magnetic plate 21 is in contact with the outer surface of the tube body 1. The magnetic plate 21 corresponds to the spring piece 63. The mounting ring 2 consists of two half rings. The mounting ring 2 wraps the tube body 1 to enhance stability.

[0048] Specific implementation method 5: This implementation method is a further limitation of specific implementation method 1. Figure 1 and Figure 2As shown, the upper and lower surfaces of the box body 4 are respectively connected to the meter head 5 and the mounting ring 2, the box body 4 is located above the cap 52, the driving device 41 drives the rotating shaft 42 to rotate, the transmission assembly 43 connects the rotating shaft 42 and the transmission shaft 3, and the driving device 41 and the microprocessor are installed in the box body 4. The blocking range of the through hole is adjusted by controlling the number of rotations of the driving device 41.

[0049] Specific embodiment six: This embodiment is a further limitation of specific embodiment one. The seal 6 also includes a spring piece 63, which is an arc-shaped metal sheet. A first airbag 66 is sandwiched between the spring piece 63 and the inner wall of the tube body 1. The first airbag 66 is connected to the second airbag 67. During installation, the spring piece 63 is squeezed to pass through the installation hole on the tube body 1 and enter the interior. Then the spring piece 63 is unfolded and pressed against the tube wall, cooperating with the magnetic force of the outer magnetic plate 21 to enhance the installation firmness of the spring piece 63.

[0050] Specific embodiment seven: This embodiment is a further limitation of specific embodiment six. The second airbag 67 is located between the inner tube 61 and the outer tube 62. The top of the outer tube 62 is connected to the limiting boss 64. The limiting boss 64 and the upper part of the outer tube 62 are fixed on the inner tube 61. A notch 65 is opened at the lower part of the outer tube 62. The notch 65 is located at the connection between the seal 6 and the tube body 1. When the spring piece 63 squeezes the first airbag 66 to inflate the second airbag 67, the outer tube 62 at the notch 65 is pressed against the tube body 1 to achieve a sealing effect.

[0051] Specific implementation method eight: This implementation method is a further limitation of specific implementation method seven. Figure 3 and Figure 4 As shown, a cap 52 is installed on the inner tube 61 above the limiting boss 64, and a connecting tube 51 is connected to the front side of the cap 52. The connecting tube 51 is connected to the interior of the tube body 1, and the other end of the connecting tube 51 is connected to the meter head 5. The flow rate of the fluid can be calculated by detecting the pressure difference in the tube body 1 on both sides of the through hole, as well as the blocking range and the tube diameter.

[0052] Specific implementation method 9: This implementation method is a further limitation of specific implementation method 1. Figure 3 and Figure 5 As shown, a bevel tooth surface 33 is provided on the gear ring 91, and the bevel tooth surface 33 is engaged with the bevel gear 32. The baffle 92 partially blocks the first through hole 71, and the second through hole 93 is connected to the first through hole 71. The specific shape and size of the baffle 92 are customized according to the changing direction of the fluid in the measured pipeline, and the figure only shows its position.

[0053] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A multifunctional flow meter that is easy to install, characterized in that: include: A tube body (1), wherein the outer side of the tube body (1) is surrounded by a mounting ring (2), and a sealing member (6) is embedded in the top of the tube body (1); A mounting ring (2), wherein both end surfaces of the mounting ring (2) are connected to magnetic plates (21), and an outer ring surface of the mounting ring (2) is connected to a box body (4); A transmission shaft (3), the bottom end of the transmission shaft (3) is connected to a bevel gear (32), the top end of the transmission shaft (3) passes through the sealing member (6) and enters the box body (4), and bristles (31) are installed on the side of the transmission shaft (3); A box body (4), wherein a driving device (41) is installed inside the box body (4), and rotating shafts (42) are installed at both ends of the driving device (41), and the rotating shafts (42) are connected to the transmission shaft (3) through a transmission assembly (43); A meter head (5) is installed on the top of the box body (4), and the meter head (5) is connected to the cap (52) through a connecting pipe (51); A sealing member (6), the sealing member (6) comprising an inner tube (61), an outer tube (62) and a limiting boss (64), the inner tube (61) passing through the outer tube (62) and the limiting boss (64), a spring sheet (63) being connected to the bottom end of the inner tube (61), and a first air bag (66) being bonded to the outer surface of the spring sheet (63); An orifice plate (7) is installed between the left adjustment plate (8) and the right adjustment plate (9), and a first through hole (71) is opened at the center of the orifice plate (7); an adjusting right plate (9), the adjusting right plate (9) comprising a gear ring (91) and a baffle (92), the gear ring (91) being adapted to the bevel gear (32), and a second through hole (93) being formed between the baffle (92) and an inner annular surface of the gear ring (91); The adjusting left plate (8) and the adjusting right plate (9) are symmetrically distributed with respect to the orifice plate (7); the edges of the adjusting left plate (8) and the adjusting right plate (9) are embedded in the inner wall of the tube body (1); the adjusting left plate (8) and the adjusting right plate (9) have the same shape and size; and the moving directions of the adjusting left plate (8) and the adjusting right plate (9) are opposite.

2. The multifunctional flow meter that is easy to install according to claim 1, characterized in that: The two ends of the transmission shaft (3) are respectively connected to a transmission assembly (43) and a bevel gear (32); bristles (31) are provided on the transmission shaft (3) between the bevel gear (32) and the sealing member (6); and the diameter of the transmission shaft (3) is smaller than the diameter of the inner tube (61).

3. The multifunctional flow meter that is easy to install according to claim 1, characterized in that: The mounting ring (2), the tube body (1) and the orifice plate (7) are nested in sequence from outside to inside; the magnetic plate (21) is in an arc-shaped structure; the inner arc surface of the magnetic plate (21) is in contact with the outer surface of the tube body (1); and the magnetic plate (21) corresponds to the spring piece (63).

4. The multifunctional flow meter that is easy to install according to claim 1, characterized in that: The upper and lower surfaces of the box body (4) are respectively connected to the meter head (5) and the mounting ring (2); the box body (4) is located above the cover cap (52); the driving device (41) drives the rotating shaft (42) to rotate; and the transmission assembly (43) connects the rotating shaft (42) and the transmission shaft (3).

5. The multifunctional flow meter that is easy to install according to claim 1, characterized in that: The sealing member (6) further comprises a spring sheet (63), wherein the spring sheet (63) is an arc-shaped metal sheet, and a first air bag (66) is sandwiched between the spring sheet (63) and the inner wall of the tube body (1), and the first air bag (66) is connected to a second air bag (67).

6. The multifunctional flow meter that is easy to install according to claim 5, characterized in that: The second airbag (67) is located between the inner tube (61) and the outer tube (62). The top of the outer tube (62) is connected to a limiting boss (64). The limiting boss (64) and the upper part of the outer tube (62) are both fixed on the inner tube (61). The lower part of the outer tube (62) is provided with a notch (65).

7. The multifunctional flow meter that is easy to install according to claim 6, characterized in that: A cap (52) is installed on the inner tube (61) above the limiting boss (64), and a connecting tube (51) is connected to the front side of the cap (52). The connecting tube (51) is connected to the interior of the tube body (1), and the other end of the connecting tube (51) is connected to the meter head (5).

8. The multifunctional flow meter that is easy to install according to claim 1, characterized in that: The gear ring (91) is provided with a bevel tooth surface (33), the bevel tooth surface (33) is meshed with the bevel gear (32), the baffle (92) partially blocks the first through hole (71), and the second through hole (93) is connected to the first through hole (71).

Images