A straight tube mass flow meter

Abstract

The present invention discloses a straight tube type mass flow meter, and relates to the technical field of mass flow meters. The straight tube type mass flow meter includes an overall device, wherein a double vibration tube is arranged inside the overall device, and there are three groups of coil assemblies fixedly connected inside the overall device, wherein the coil assembly includes a fixed base and a coil body, and an oblique thread connection groove is provided at the top of the fixed base, and auxiliary fixtures are fixedly connected to the left and right sides of the inner wall of the fixed base, and an oblique thread connection column is fixedly connected to the bottom of the coil body. In the present invention, the coil assembly is located in the middle of the double vibration tubes, and the coil volume is small, which is conducive to the overall balance and the stable operation of the instrument. At the same time, in the present invention, the coil assembly is composed of a fixed base and a coil body, and the coil body is threadably connected to the oblique thread connection groove at the top of the fixed base through the oblique thread connection column at the bottom thereof, which increases the convenience of installation of the coil assembly.

Description

Technical Field

[0001] The invention relates to the technical field of mass flowmeters, in particular to a straight tube mass flowmeter. Background Art

[0002] The volume of a fluid is a function of the temperature and pressure of the fluid and is a dependent variable, while the mass of a fluid is a quantity that does not change with time, space temperature, and pressure. As mentioned above, the flow measurement value of commonly used flow meters, such as orifice flowmeters, laminar mass flowmeters, turbine flowmeters, vortex flowmeters, electromagnetic flowmeters, rotor flowmeters, ultrasonic flowmeters, and elliptical gear flowmeters, is the volume flow rate of the fluid. The amount of fluid involved in scientific research, production process control, quality management, economic accounting, and trade transfer is generally mass. Using the above flowmeter to measure only the volume flow of the fluid often cannot meet people's requirements, and it is usually necessary to try to obtain the mass flow of the fluid. In the past, the mass of the fluid could only be obtained indirectly through correction, conversion, and compensation after measuring parameters such as the temperature, pressure, density, and volume of the fluid. This measurement method has many intermediate links, and the accuracy of mass flow measurement is difficult to guarantee and improve. With the development of modern science and technology, some metering methods and devices for directly measuring mass flow have emerged one after another, thus promoting the progress of flow measurement technology.

[0003] The existing coil has a large mass, which is not only difficult to install, but also not conducive to the overall weight balance and affects the stability of the instrument. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the present invention provides a straight tube mass flowmeter to solve the problems raised in the above background technology.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a straight tube type mass flow meter, including an overall device, a double vibration tube is arranged inside the overall device, and three groups of coil assemblies are fixedly connected inside the overall device, and the coil assembly includes a fixed base and a coil body. An oblique threaded connection groove is provided at the top of the fixed base, and a socket is provided at the top of the fixed base. Auxiliary fixtures are fixedly connected to the left and right sides of the inner wall of the fixed base, and a plug rod assembly is fixedly connected to the left and right sides of the coil body, and an oblique threaded connection column is fixedly connected to the bottom of the coil body.

[0008] Preferably, there are two sockets, and the two sockets are symmetrically distributed on the top of the fixed base.

[0009] Preferably, the auxiliary fixer includes a bracket plate, the top of the bracket plate is hinged with a triangular buckle rod through a rotating shaft gear, the left side of the triangular buckle rod is fixedly connected with an arc-shaped self-resetting component, and the left side of the bottom of the inner wall of the bracket plate is fixedly connected with a transmission component.

[0010] Preferably, the transmission assembly includes a hydraulic pipeline, an arc-shaped gear rod is slidably connected to the right side of the interior of the hydraulic pipeline, a hydraulic rod is slidably connected to the left side of the interior of the hydraulic pipeline, and a No. 1 spring is fixedly connected to the right side of the hydraulic rod.

[0011] Preferably, the right side of the top end of the arc-shaped latching gear rod is meshed with the rotating shaft gear.

[0012] Preferably, the insertion rod assembly includes a shell, an L-shaped slide bar is slidably connected to the right side of the inner wall of the shell, a No. 2 spring is fixedly connected to the top of the L-shaped slide bar, and a triangular slot is provided at the lower left end of the L-shaped slide bar.

[0013] Preferably, the oblique thread connection groove and the oblique thread connection column both adopt inclined threads, and the number of threads is the same.

[0014] Preferably, the top width of the oblique thread connection groove is greater than the bottom width.

[0015] Preferably, the top width of the oblique threaded connecting column is greater than the bottom width.

[0016] (III) Beneficial effects

[0017] The present invention provides a straight tube mass flow meter. It has the following beneficial effects:

[0018] (1) The coil assembly in the present invention is located in the middle of the double vibration tubes, and the coil volume is small, which is conducive to the overall balance and the stable operation of the instrument. At the same time, the coil assembly in the present invention is composed of a fixed base and a coil body, and the coil body is threadedly connected to the oblique threaded connection groove at the top of the fixed base through the oblique threaded connection column at the bottom, which increases the convenience of installation of the coil assembly.

[0019] (2) The oblique thread connection groove and the oblique thread connection column in the present invention both adopt a structure that is wide at the top and narrow at the bottom, which makes the connection more convenient during installation and solves the problem that the existing thread grooves and thread columns of the same specification cannot be aligned during connection.

[0020] (3) The present invention combines the plug rod assembly with the auxiliary fixer to increase the connection stability between the fixed base and the coil body, while reducing the problem of spontaneous falling during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the fixed base in the coil assembly of the present invention;

[0023] Figure 3 It is a schematic diagram of the coil main body structure in the coil assembly of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the auxiliary fixator of the present invention;

[0025] Figure 5 It is a schematic diagram of the structure of the transmission assembly of the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of the plunger assembly of the present invention.

[0027] In the figure: 1 the whole device, 2 double vibration tube, 3 coil assembly, 4 fixed base, 5 coil body, 6 oblique thread connection groove, 7 socket, 8 auxiliary fixer, 81 bracket plate, 82 shaft gear, 83 triangular buckle rod, 84 arc self-reset assembly, 85 transmission assembly, 851 hydraulic pipeline, 852 arc-shaped gear rod, 853 hydraulic rod, 854 No. 1 spring, 9 plug rod assembly, 91 shell, 92 L-type slide rod, 93 No. 2 spring, 94 triangular slot, 10 oblique thread connection column. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0029] Example 1

[0030] See also Figure 1-3 The present invention provides a technical solution: a straight tube type mass flow meter, including an overall device 1, a double vibration tube 2 is arranged inside the overall device 1, and three groups of coil assemblies 3 are fixedly connected inside the overall device 1. The coil assembly 3 includes a fixed base 4 and a coil body 5. An oblique thread connection groove 6 is provided at the top of the fixed base 4, and a plug hole 7 is provided at the top of the fixed base 4. Auxiliary fixtures 8 are fixedly connected to the left and right sides of the inner wall of the fixed base 4, and a plug rod assembly 9 is fixedly connected to the left and right sides of the coil body 5. An oblique thread connection column 10 is fixedly connected to the bottom of the coil body 5.

[0031] In the above solution, preferably, there are two sockets 7, and the two sockets 7 are symmetrically distributed on the top of the fixed base 4;

[0032] In the above scheme, it is preferred that the oblique thread connection groove 6 and the oblique thread connection column 10 both adopt inclined threads and have the same number of threads, the top width of the oblique thread connection groove 6 is greater than the bottom width, and the top width of the oblique thread connection column 10 is greater than the bottom width.

[0033] It is worth noting that the coil assembly 3 in the present invention is located in the middle of the double-vibration tube 2, and the coil volume is small, which is conducive to the overall balance and the stable operation of the instrument. At the same time, the coil assembly 3 in the present invention is composed of a fixed base 4 and a coil body 5, and the coil body 5 is threadedly connected to the oblique threaded connecting groove 6 at the top of the fixed base 4 through the oblique threaded connecting column 10 at its bottom, which increases the convenience of installation of the coil assembly 3. The oblique threaded connecting groove 6 and the oblique threaded connecting column 10 in the present invention are both composed of a structure that is wide at the top and narrow at the bottom, which is more convenient to connect during installation, and solves the problem that the existing threaded grooves and threaded columns of the same specification cannot be aligned when connected.

[0034] During operation, the fixed base 4 is fixed in the overall device 1, and then the oblique threaded connecting column 10 at the bottom of the coil body 5 is threadedly connected to the oblique threaded connecting groove 6 at the top of the fixed base 4 by rotating clockwise. The three coil assemblies 3 in the present invention are all connected using the above method, and then vibration homogenization is performed through the double vibration tube 2, and finally the measurement operation is performed through the overall device.

[0035] Example 2

[0036] See also Figure 1-6 The present invention provides a technical solution: a straight tube type mass flow meter, including an overall device 1, a double vibration tube 2 is arranged inside the overall device 1, and three groups of coil assemblies 3 are fixedly connected inside the overall device 1. The coil assembly 3 includes a fixed base 4 and a coil body 5. An oblique thread connection groove 6 is provided at the top of the fixed base 4, and a plug hole 7 is provided at the top of the fixed base 4. Auxiliary fixtures 8 are fixedly connected to the left and right sides of the inner wall of the fixed base 4, and a plug rod assembly 9 is fixedly connected to the left and right sides of the coil body 5. An oblique thread connection column 10 is fixedly connected to the bottom of the coil body 5.

[0037] In the above solution, preferably, there are two sockets 7, and the two sockets 7 are symmetrically distributed on the top of the fixed base 4;

[0038] In the above scheme, preferably, the auxiliary fixer 8 includes a bracket plate 81, the top of the bracket plate 81 is hinged with a triangular buckle rod 83 through a rotating shaft gear 82, the left side of the triangular buckle rod 83 is fixedly connected with an arc-shaped self-resetting component 84, and the left side of the bottom of the inner wall of the bracket plate 81 is fixedly connected with a transmission component 85;

[0039] In the above solution, preferably, the transmission assembly 85 includes a hydraulic pipeline 851, an arc-shaped latching gear rod 852 is slidably connected to the right side of the hydraulic pipeline 851, a hydraulic rod 853 is slidably connected to the left side of the hydraulic pipeline 851, and a No. 1 spring 854 is fixedly connected to the right side of the hydraulic rod 853;

[0040] In the above solution, preferably, the top right side of the arc-shaped latching gear rod 852 is meshed with the rotating shaft gear 82;

[0041] Preferably in the above scheme, the insertion rod assembly 9 includes a shell 91, an L-shaped slide bar 92 is slidably connected to the right side of the inner wall of the shell 91, a No. 2 spring 93 is fixedly connected to the top of the L-shaped slide bar 92, and a triangular slot 94 is provided at the lower left end of the L-shaped slide bar 92.

[0042] It is worth noting that the coil assembly 3 in the present invention is located in the middle of the double-vibration tube 2, and the coil volume is small, which is conducive to overall balance and stable operation of the instrument. At the same time, the coil assembly 3 in the present invention is composed of a fixed base 4 and a coil body 5, and the coil body 5 is threadedly connected to the oblique threaded connecting groove 6 at the top of the fixed base 4 through the oblique threaded connecting column 10 at its bottom, which increases the installation convenience of the coil assembly 3. The oblique threaded connecting groove 6 and the oblique threaded connecting column 10 in the present invention are both composed of a structure that is wide at the top and narrow at the bottom, which is more convenient to connect during installation, and solves the problem that the existing threaded grooves and threaded columns of the same specification cannot be aligned when connected. In addition, the present invention combines the rod assembly 9 with the auxiliary fixer 8 to increase the connection stability between the fixed base 4 and the coil body 5, and at the same time reduce the problem of spontaneous falling during use.

[0043] When in use, fix the fixed base 4 in the device as a whole 1, and then screw the oblique threaded connection column 10 at the bottom of the coil body 5 into the oblique threaded connection groove 6 at the top of the fixed base 4 by rotating clockwise, and then slide the L-shaped slide bars 92 on both sides of the coil body 5 downward, so that the two L-shaped slide bars 92 move downward through the two plug holes 7 at the top of the fixed base 4 and enter the fixed base 4, so that the triangular slots 94 on the left side of the two L-shaped slide bars 92 are respectively engaged with the two triangular buckle rods 83 inside the fixed base 4, thereby increasing the connection stability between the fixed base 4 and the coil body 5. At the same time, the three coil assemblies 3 in the present invention are all connected in the above manner. When the three coil assemblies 3 are installed, they are vibrated and homogenized by the double vibration tube 2, and finally the measurement operation is performed by the device as a whole;

[0044] During disassembly, first press the two hydraulic rods 853 on both sides of the fixed base 4, and through the hydraulic pipeline 851, the left arc-shaped gear rod 852 drives the left triangular buckle rod 83 to rotate counterclockwise through the left rotating shaft gear 82. At the same time, the right arc-shaped gear rod 852 drives the right triangular buckle rod 83 to rotate counterclockwise through the right rotating shaft gear 82, so that the two triangular buckle rods 83 are respectively separated from the triangular slots 94 inside the two L-shaped slide bars 92. At this time, the two L-shaped slide bars 92 move upward through the two jacks 7 through the rebound force of the No. 2 spring 93 and separate from the fixed base 4. Secondly, rotate the coil body 5 counterclockwise to make the oblique threaded connecting column 10 rotate counterclockwise and move upward to separate the oblique threaded connecting column 10 from the oblique threaded connecting groove 6. At this time, the disassembly of the fixed base 4 and the coil body 5 is completed, so that the coil body 5 in the present invention is not only more stably connected, but also convenient to replace the coil body 5.

[0045] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A straight tube type mass flow meter, comprising a device as a whole (1), wherein a double vibrating tube (2) is arranged inside the device as a whole (1), and wherein three groups of coil assemblies (3) are fixedly connected inside the device as a whole (1), and wherein: The coil assembly (3) comprises a fixed base (4) and a coil body (5); an oblique thread connection groove (6) is provided at the top of the fixed base (4); an insertion hole (7) is provided at the top of the fixed base (4); an auxiliary fixer (8) is fixedly connected to the left and right sides of the inner wall of the fixed base (4); a plug rod assembly (9) is fixedly connected to the left and right sides of the coil body (5); and an oblique thread connection column (10) is fixedly connected to the bottom of the coil body (5); The auxiliary fixer (8) comprises a bracket plate (81), the top end of the bracket plate (81) is hingedly connected to a triangular buckle rod (83) via a rotating shaft gear (82), the left side of the triangular buckle rod (83) is fixedly connected to an arc-shaped self-resetting component (84), and the left side of the bottom of the inner wall of the bracket plate (81) is fixedly connected to a transmission component (85); The transmission assembly (85) comprises a hydraulic pipeline (851), an arc-shaped latching gear rod (852) is slidably connected to the right side of the hydraulic pipeline (851), a hydraulic rod (853) is slidably connected to the left side of the hydraulic pipeline (851), and a No. 1 spring (854) is fixedly connected to the right side of the hydraulic rod (853); The right side of the top end of the arc-shaped latching gear rod (852) is meshed with the rotating shaft gear (82); The insertion rod assembly (9) comprises a shell (91), an L-shaped slide bar (92) is slidably connected to the right side of the inner wall of the shell (91), a No. 2 spring (93) is fixedly connected to the top end of the L-shaped slide bar (92), and a triangular slot (94) is formed at the lower left end of the L-shaped slide bar (92).

2. A straight tube mass flow meter according to claim 1, characterized in that: There are two sockets (7) in total, and the two sockets (7) are symmetrically distributed on the top of the fixed base (4).

3. A straight tube mass flow meter according to claim 1, characterized in that: The oblique thread connection groove (6) and the oblique thread connection column (10) both adopt inclined threads, and have the same number of threads.

4. A straight tube mass flow meter according to claim 1, characterized in that: The top width of the oblique thread connection groove (6) is greater than the bottom width.

5. A straight tube mass flow meter according to claim 1, characterized in that: The top width of the oblique threaded connection column (10) is greater than the bottom width.

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