Tuning fork type densimeter

Abstract

The utility model relates to the field of tuning fork type densimeters, in particular to a tuning fork type densimeter, which adopts the technical scheme that the tuning fork type densimeter comprises a machine head and a connecting rod, the connecting rod is mounted at the lower end of the machine head, a flange plate is mounted outside the connecting rod, a mounting column is mounted on the bottom surface of the connecting rod, and a tuning fork and a cleaning component are mounted at the lower end of the mounting column. The cleaning device has the advantages that the surface of the tuning fork can be cleaned conveniently, impurities are prevented from being attached to the surface of the tuning fork, the micro air cylinder can drive the positioning plate to move and adjust through the piston rod, and when the micro air cylinder drives the positioning plate to move through the piston rod, the positioning plate can drive the cleaning plate and the cleaning ring to move through the first connecting rod and the second connecting rod. At the moment, the cleaning plate can clean the surface of the plane part on one side of the tuning fork, and the cleaning ring can clean the surface of the arc part on one side of the tuning fork, so that the whole tuning fork type densimeter does not need to be disassembled, and is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the field of tuning fork type densitometers, in particular to a tuning fork type densitometer. Background Art

[0002] The tuning fork type densitometer is a device used to continuously measure the concentration and density of liquids online, and can be directly used in industrial production. The working principle of the tuning fork densitometer is as follows: the sensor works based on the principle of component vibration. The component part is the tuning fork part immersed in the measured liquid. The tuning fork part senses vibration through the internal piezoelectric device fixed at one end of the bottom of the fork body. The oscillation frequency is detected by the secondary piezoelectric device fixed at the other end of the fork body, and then the signal is amplified by the circuit at the top.

[0003] When a tuning fork type density meter is used, it is generally necessary to insert the tuning fork into a pipe or a tank. After long-term use, impurities in the medium are likely to adhere to the surface of the tuning fork, affecting the vibration of the tuning fork and causing errors in the measurement results of the tuning fork type density meter. When the surface of the tuning fork needs to be cleaned, the entire tuning fork type density meter needs to be removed from the pipe, which is inconvenient to operate.

[0004] Therefore, it is necessary to invent a tuning fork type density meter. Utility Model Content

[0005] The purpose of the utility model is to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tuning fork type density meter, comprising a machine head and a connecting rod, wherein the connecting rod is installed at the lower end of the machine head, a flange is installed on the outside of the connecting rod, a mounting column is installed on the bottom surface of the connecting rod, and a tuning fork and a cleaning assembly are installed at the lower end of the mounting column.

[0007] Based on the above features: the connecting rod and the mounting column are hollow structures inside, the tuning fork is connected to the machine head through the mounting column and the inside of the connecting rod by a signal line, and the connecting rod is docked with the flange on the pipe through an externally mounted flange, which facilitates the insertion of the tuning fork into the pipe for density detection. After the tuning fork type density meter is used for detection, the surface of the tuning fork can be cleaned by the cleaning component without removing the tuning fork type density meter from the pipe, thereby improving convenience.

[0008] Preferably, a central through hole is opened in the middle of the installation column, and a sealing ring is fixedly installed on the inner wall of the central through hole.

[0009] Based on the above features: the cleaning component can movably penetrate through the central through hole at the bottom end of the mounting column, and the provided sealing ring can seal the central through hole.

[0010] Preferably, the tuning fork is a semicircular structure, one side of the tuning fork is a flat portion, and the other side of the tuning fork is an arc portion.

[0011] Based on the above features: two tuning forks are symmetrically arranged, the two tuning forks are vertically fixed on the bottom surface of the mounting column, and the arranged flat portion and arc portion are not conducive to the deposition of impurities.

[0012] Preferably, the cleaning assembly comprises a positioning plate and a first connecting rod and a second connecting rod symmetrically installed on the sides of the positioning plate, a micro cylinder is installed on the upper end of the positioning plate, and a piston rod is installed on the movable end of the micro cylinder.

[0013] Based on the above features: the micro cylinder is fixed in the hollow inner cavity of the mounting column, the micro cylinder can pass through the central through hole through the piston rod, and the provided sealing ring can seal between the central through hole and the piston rod to avoid a gap between the two, causing liquid to penetrate into the inner cavity of the mounting column.

[0014] Preferably, a sealing gasket is installed on the upper end of the positioning plate.

[0015] Based on the above features: when there is no need to clean the tuning fork, the micro cylinder will drive the positioning plate to move up through the piston rod. At this time, the upwardly moved positioning plate will fit against the bottom surface of the mounting column, and the positioning plate will use a sealing gasket to seal the center through hole to improve the sealing effect.

[0016] Preferably, a cleaning plate is installed at one end of the first connecting rod away from the positioning plate.

[0017] Based on the above characteristics, the surface of the flat surface on one side of the tuning fork can be cleaned.

[0018] Preferably, a cleaning ring is installed at one end of the second connecting rod away from the positioning plate.

[0019] Based on the above characteristics: the surface of the arc portion on one side of the tuning fork can be cleaned.

[0020] The beneficial effects of the utility model are:

[0021] 1. It is convenient to clean the surface of the tuning fork to prevent impurities from adhering to the surface of the tuning fork. The micro cylinder can drive the positioning plate to move and adjust through the piston rod. When the micro cylinder drives the positioning plate to move through the piston rod, the positioning plate can drive the cleaning plate and the cleaning ring to move through the first connecting rod and the second connecting rod. At this time, the cleaning plate can clean the flat surface of one side of the tuning fork, and the cleaning ring can clean the arc surface of one side of the tuning fork. There is no need to disassemble the entire tuning fork type density meter, which is simple and convenient.

[0022] 2. To improve the sealing effect, when there is no need to clean the tuning fork, the micro cylinder will drive the positioning plate to move up through the piston rod, so that the positioning plate, cleaning plate and cleaning ring fit on the bottom surface of the mounting column, and the positioning plate will also use the sealing gasket to seal the center through hole. When the piston rod moves through the center through hole, the sealing ring can seal between the center through hole and the piston rod to avoid a gap between the two, causing liquid to penetrate into the inner cavity of the mounting column. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the overall structure of a tuning fork type density meter provided by the utility model;

[0024] Figure 2 A schematic diagram of the bottom surface structure of a tuning fork type density meter installation column provided by the utility model;

[0025] Figure 3 A bottom view of a tuning fork type density meter installation column and a cleaning assembly provided by the utility model;

[0026] Figure 4 The utility model provides a schematic structural diagram of a tuning fork type density meter cleaning component.

[0027] In the figure: 1, machine head; 2, connecting rod; 3, flange; 4, mounting column; 41, center through hole; 42, sealing ring; 5, tuning fork; 51, flat part; 52, arc part; 6, cleaning component; 61, positioning plate; 611, sealing gasket; 62, first connecting rod; 621, cleaning plate; 63, second connecting rod; 631, cleaning ring; 64, micro cylinder; 65, piston rod. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0029] See attached Figure 1-4 The utility model provides a tuning fork type density meter, including a machine head 1 and a connecting rod 2, the connecting rod 2 is installed at the lower end of the machine head 1, a flange 3 is installed on the outside of the connecting rod 2, a mounting column 4 is installed on the bottom surface of the connecting rod 2, and a tuning fork 5 and a cleaning component 6 are installed at the lower end of the mounting column 4.

[0030] The interior of the connecting rod 2 and the mounting column 4 is a hollow structure, and the tuning fork 5 is connected to the inside of the connecting rod 2 and the machine head 1 through the mounting column 4 using a signal line. The connecting rod 2 is docked with the flange on the pipeline through the externally mounted flange 3, which facilitates the insertion of the tuning fork 5 into the pipeline for density detection. After the tuning fork type density meter is used for detection, the surface of the tuning fork 5 can be cleaned through the cleaning component 6, without the need to remove the tuning fork type density meter from the pipeline, thereby improving convenience.

[0031] Preferably, a central through hole 41 is opened in the middle of the installation column 4 , and a sealing ring 42 is fixedly installed on the inner wall of the central through hole 41 .

[0032] The cleaning component 6 can be movably inserted through the central through hole 41 at the bottom end of the mounting column 4 , and the provided sealing ring 42 can seal the central through hole 41 .

[0033] Preferably, the tuning fork 5 is a semicircular structure, one side of the tuning fork 5 is a flat portion 51 , and the other side of the tuning fork 5 is an arc portion 52 .

[0034] The tuning forks 5 are symmetrically arranged in two, and the two tuning forks 5 are vertically fixed on the bottom surface of the mounting column 4. The plane portion 51 and the arc portion 52 are not conducive to the deposition of impurities (a structure usually arranged in the prior art, which will not be described in detail in this application).

[0035] Preferably, the cleaning assembly 6 includes a positioning plate 61 and a first connecting rod 62 and a second connecting rod 63 symmetrically installed on the sides of the positioning plate 61 . A micro cylinder 64 is installed on the upper end of the positioning plate 61 , and a piston rod 65 is installed on the movable end of the micro cylinder 64 .

[0036] The micro cylinder 64 is fixed in the hollow inner cavity of the mounting column 4. The micro cylinder 64 can be movably penetrated through the central through hole 41 by the piston rod 65, so that the piston rod 65 can drive the positioning plate 61 to move and adjust. The provided sealing ring 42 can seal between the central through hole 41 and the piston rod 65 to avoid a gap between the two, which would cause liquid to penetrate into the inner cavity of the mounting column 4.

[0037] Preferably, a sealing gasket 611 is installed on the upper end of the positioning plate 61 .

[0038] When there is no need to clean the tuning fork 5, the micro cylinder 64 will drive the positioning plate 61 to move upward through the piston rod 65. At this time, the positioning plate 61 after moving upward will be attached to the bottom surface of the mounting column 4, and the positioning plate 61 will use the sealing gasket 611 to seal the central through hole 41 to improve the sealing effect.

[0039] Preferably, a cleaning plate 621 is installed at one end of the first connecting rod 62 away from the positioning plate 61 .

[0040] The positioning plate 61 can drive the cleaning plate 621 to rise and fall through the first connecting rod 62. The cleaning plate 621 is in contact with the plane portion 51 on one side of the tuning fork 5. When the cleaning plate 621 moves, the surface of the plane portion 51 on one side of the tuning fork 5 can be cleaned.

[0041] Preferably, a cleaning ring 631 is installed at one end of the second connecting rod 63 away from the positioning plate 61 .

[0042] The positioning plate 61 can drive the cleaning ring 631 to rise and fall through the second connecting rod 63. The cleaning ring 631 is a circular structure, and its inner wall is in contact with the arc portion 52 on one side of the tuning fork 5. When the cleaning ring 631 moves, the surface of the arc portion 52 on one side of the tuning fork 5 can be cleaned.

[0043] The usage process of the utility model is as follows: the connecting rod 2 is connected to the flange on the pipeline through the flange plate 3, which is convenient for the tuning fork 5 to be inserted into the pipeline for density detection. The micro cylinder 64 can drive the positioning plate 61 to move and adjust through the piston rod 65. When there is no need to clean the tuning fork 5, the micro cylinder 64 will drive the positioning plate 61 to move up through the piston rod 65. At this time, the positioning plate 61 after moving up will be attached to the bottom surface of the mounting column 4, and the positioning plate 61 will use the sealing gasket 611 to block the central through hole 41. When the surface of the tuning fork 5 needs to be cleaned, the micro cylinder 64 will drive the positioning plate 61 to move down through the piston rod 65. At this time, the positioning plate 61 can drive the cleaning plate 621 and the cleaning ring 631 to move through the first connecting rod 62 and the second connecting rod 63. At this time, the cleaning plate 621 can clean the surface of the flat portion 51 on one side of the tuning fork 5, and the cleaning ring 631 can clean the surface of the arc portion 52 on one side of the tuning fork 5.

[0044] The above is only a preferred embodiment of the utility model. Any person skilled in the art may modify the utility model by using the above technical solution or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement based on the technical solution of the utility model shall fall within the scope of protection claimed by the utility model.

Claims

1. A tuning fork type density meter, comprising a head (1) and a connecting rod (2), wherein the connecting rod (2) is mounted at the lower end of the head (1), characterized in that: A flange (3) is installed on the outside of the connecting rod (2), a mounting column (4) is installed on the bottom surface of the connecting rod (2), and a tuning fork (5) and a cleaning component (6) are installed on the lower end of the mounting column (4).

2. A tuning fork type density meter according to claim 1, characterized in that: A central through hole (41) is provided in the middle of the installation column (4), and a sealing ring (42) is fixedly installed on the inner wall of the central through hole (41).

3. A tuning fork type density meter according to claim 1, characterized in that: The tuning fork (5) is a semicircular structure, one side of the tuning fork (5) is a flat surface portion (51), and the other side of the tuning fork (5) is an arc portion (52).

4. A tuning fork type density meter according to claim 1, characterized in that: The cleaning assembly (6) comprises a positioning plate (61) and a first connecting rod (62) and a second connecting rod (63) symmetrically mounted on the sides of the positioning plate (61); a micro cylinder (64) is mounted on the upper end of the positioning plate (61); and a piston rod (65) is mounted on the movable end of the micro cylinder (64).

5. A tuning fork type density meter according to claim 4, characterized in that: A sealing gasket (611) is installed on the upper end of the positioning plate (61).

6. A tuning fork type density meter according to claim 4, characterized in that: A cleaning plate (621) is mounted on one end of the first connecting rod (62) away from the positioning plate (61).

7. A tuning fork type density meter according to claim 4, characterized in that: A cleaning ring (631) is installed at one end of the second connecting rod (63) away from the positioning plate (61).

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