Gas Roots flowmeter convenient to maintain

Abstract

The utility model discloses a gas Roots flowmeter convenient to maintain, which belongs to the field of high-performance and intelligent instruments and meters and comprises a front shell cover and a support column, a rear shell cover is clamped and sealed on the rear side of the front shell cover through bolts, and bases are fixedly arranged at the upper end of the front shell cover and the upper end of the rear shell cover respectively. By arranging the front shell cover and the rear shell cover, the front shell cover and the rear shell cover can be detached and separated conveniently, then the interior of the front shell cover and the interior of the rear shell cover are maintained, the base and the bottom plate are connected through bolts, a displayer can be taken down conveniently, and the displayer can be taken down conveniently. Meanwhile, the front shell cover, the rear shell cover and the displayer are wrapped by the housing, the gas Roots flowmeter is wrapped and protected, the gas Roots flowmeter is wrapped and stored when not used, and when the gas Roots flowmeter is used, the left circular plate and the right circular plate are taken down, the left through hole and the right through hole are opened, and the left baffle and the right baffle are connected.

Description

Technical Field

[0001] The utility model relates to the field of high-performance and intelligent instruments and meters, and more specifically, to a gas Roots flowmeter which is convenient to maintain. Background Art

[0002] Roots flowmeter, also known as rotary flowmeter, is a high-precision meter mainly used for continuous or intermittent measurement of gas or liquid flow in pipelines.

[0003] For example, a Roots flowmeter disclosed in announcement number CN203241094U includes a housing, a pair of metering rotors arranged in the housing to divide the housing into an air inlet chamber and an air outlet chamber, the metering rotor includes a waist wheel and a rotor shaft, both ends of the rotor shaft are exposed from the two side wall panels of the housing, a pair of meshing gears are installed on the rotor shaft outside the wall panel on one side of the housing, and a set of turbine worm mechanism for counting gas is installed on the rotor shaft outside the wall panel on the other side of the housing. The rotor shaft of the metering rotor is divided into two sections; one end of the rotor shaft of one section where the gear is installed is an interference spline fit with the waist wheel, and the rotor shaft is an interference taper fit with the installed gear; one end of the other section of the rotor shaft is also an interference spline fit with the waist wheel. The waist wheel, gear and rotor shaft of the utility model are all interference fits, eliminating the coaxiality error formed during the installation process, so that the rotation of the waist wheel is stable, the meshing of the gear is stable, the noise during operation is small, and the metering accuracy is high.

[0004] It can be seen from the above-mentioned public scheme that the shell of the current Roots flowmeter is mostly fixed, and it is not easy to open the shell of the Roots flowmeter, so it is not easy to maintain the inside of the shell of the Roots flowmeter, so the effect of convenient maintenance cannot be achieved. At the same time, the gas Roots flowmeter has no protective device, which reduces the maintenance of the gas Roots flowmeter. Utility Model Content

[0005] The utility model aims to provide a gas Roots flowmeter which is convenient to maintain, so as to solve the problem of maintenance and protection of the gas Roots flowmeter.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gas Roots flowmeter which is easy to maintain, comprising a front shell cover and a pillar, the rear side of the front shell cover is sealed with a rear shell cover by bolt clamping, the upper ends of the front shell cover and the rear shell cover are respectively fixed with bases, the left sides of the front shell cover and the rear shell cover are clamped with a left baffle, the right sides of the front shell cover and the rear shell cover are clamped with a right baffle, the lower ends of the front shell cover and the rear shell cover are fixedly clamped with an arc seat by bolts, the lower ends of the arc seat are fixedly provided with a push rod, the lower end of the push rod is fixedly provided with a cover shell by bolts, the left side of the cover shell is clamped with a left baffle door, the right side of the cover shell is clamped with a right baffle door, the A left through hole is provided at the lower end of the left baffle door, and a right through hole is provided at the lower end of the right baffle door. A left circular plate is clamped inside the left through hole, and a right circular plate is clamped inside the right through hole. By providing a front shell cover and a rear shell cover, it is convenient to disassemble and separate the front shell cover and then maintain the interior of the front shell cover and the rear shell cover. The base and the bottom plate are connected by bolts, which makes it convenient to remove the display and maintain the display. At the same time, the front shell cover, the rear shell cover and the display are wrapped by the cover shell, which plays a role of wrapping and protecting the gas Roots flowmeter. The gas Roots flowmeter can be wrapped and stored when not in use. When in use, the left circular plate and the right circular plate are removed, the left through hole and the right through hole are opened, and the left baffle and the right baffle are connected.

[0007] Preferably, the upper end of the base is fixedly connected to the bottom plate by bolts, the upper end of the bottom plate is fixedly provided with a support seat, the upper end of the support seat is fixedly provided with a pillar, and the front shell cover and the rear shell cover are supported by the arrangement of the arc seat and the top rod, and the connection between the front shell cover and the rear shell cover and the cover shell is fixed respectively.

[0008] Preferably, a display is fixedly provided on the upper end of the pillar, a display screen is fixedly provided on the front side of the display, the front shell cover and the rear shell cover are respectively provided inside the cover shell, and through the provision of the left baffle door and the right baffle door, when the left baffle door and the right baffle door are removed, the cover shell is opened to facilitate loading and unloading of the gas Roots flowmeter.

[0009] Preferably, the left door and the right door are respectively fixedly provided with a plurality of limit blocks, and the limit blocks are fixedly provided on the cover shell by bolts, and the installation of the left door and the right door is limited by the setting of the limit blocks.

[0010] Preferably, the left circular plate and the right circular plate are respectively fixedly provided with a plurality of ear plates, and the ear plates are fixed to the cover shell by bolts.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] (1) The utility model provides a front shell cover and a rear shell cover, thereby facilitating the disassembly and separation of the front shell cover and the interior of the front shell cover and the rear shell cover for maintenance. The base and the bottom plate are connected by bolts, so that the display can be easily removed and maintained.

[0013] (2) The utility model wraps the front shell cover, the rear shell cover and the display through the cover shell, thereby wrapping and protecting the gas Roots flowmeter. When not in use, the cover shell can be wrapped and stored. When in use, the left circular plate and the right circular plate can be removed, the left through hole and the right through hole can be opened, and the left baffle plate and the right baffle plate can be connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a left view of the overall structure of the utility model;

[0015] Figure 2 It is a partial cross-sectional view of the overall structure of the utility model;

[0016] Figure 3 It is a schematic diagram of a gas Roots flowmeter of the utility model;

[0017] Figure 4 It is a partial left view of the connection between the front shell cover and the rear shell cover of the utility model;

[0018] Figure 5 It is a left view of the left baffle of the utility model.

[0019] Description of the numbers in the figure:

[0020] 1 front shell cover, 2 rear shell cover, 3 base, 4 left baffle, 5 right baffle, 6 bottom plate, 7 support seat, 8 pillar, 9 display, 10 display screen, 11 arc seat, 12 push rod, 13 cover shell, 14 left baffle door, 15 right baffle door, 16 limit block, 17 left through hole, 18 right through hole, 19 left round plate, 20 right round plate, 21 ear plate. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0022] Example 1

[0023] See also Figure 1-5The gas Roots flowmeter shown in the figure is easy to maintain, including a front shell cover 1 and a support 8. The rear side of the front shell cover 1 is sealed with a rear shell cover 2 by bolt clamping. The upper ends of the front shell cover 1 and the rear shell cover 2 are respectively fixed with a base 3. The left side of the front shell cover 1 and the rear shell cover 2 is clamped with a left baffle 4, and the right side of the front shell cover 1 and the rear shell cover 2 is clamped with a right baffle 5. The lower ends of the front shell cover 1 and the rear shell cover 2 are fixed with an arc seat 1 by bolts. 1. A push rod 12 is fixedly provided at the lower end of the arc seat 11, a cover shell 13 is fixedly provided at the lower end of the push rod 12 by bolts, a left baffle door 14 is clamped on the left side of the cover shell 13, a right baffle door 15 is clamped on the right side of the cover shell 13, a left through hole 17 is provided at the lower end of the left baffle door 14, a right through hole 18 is provided at the lower end of the right baffle door 15, a left circular plate 19 is clamped inside the left through hole 17, and a right circular plate 20 is clamped inside the right through hole 18.

[0024] In order to facilitate the maintenance of the gas Roots flowmeter, the upper end of the base 3 is fixedly connected to the bottom plate 6 by bolts, the upper end of the bottom plate 6 is fixedly provided with a support seat 7, the upper end of the support seat 7 is fixedly provided with a pillar 8, the upper end of the pillar 8 is fixedly provided with a display 9, the front side of the display 9 is fixedly provided with a display screen 10, and the front shell cover 1 and the rear shell cover 2 are respectively arranged inside the cover shell 13.

[0025] In this embodiment, by setting the front shell cover 1 and the rear shell cover 2, it is convenient to disassemble and separate the front shell cover 1 and the rear shell cover 2, and then maintain the interior of the front shell cover 1 and the rear shell cover 2. The base 3 and the bottom plate 6 are connected by bolts to facilitate the removal of the display 9 and the maintenance of the display 9.

[0026] Example 2

[0027] See also Figure 1-5 The present embodiment further illustrates Example 1. In the figure, a gas Roots flowmeter that is easy to maintain includes a front shell cover 1 and a support 8. The rear side of the front shell cover 1 is sealed with a rear shell cover 2 by bolt clamping. The upper ends of the front shell cover 1 and the rear shell cover 2 are respectively fixed with a base 3. The left side of the front shell cover 1 and the rear shell cover 2 is clamped with a left baffle 4, and the right side of the front shell cover 1 and the rear shell cover 2 is clamped with a right baffle 5. The lower ends of the front shell cover 1 and the rear shell cover 2 are fixed by bolts. An arc seat 11 is fixedly connected, a push rod 12 is fixedly provided at the lower end of the arc seat 11, a cover shell 13 is fixedly provided at the lower end of the push rod 12 by bolts, a left baffle door 14 is clamped on the left side of the cover shell 13, a right baffle door 15 is clamped on the right side of the cover shell 13, a left through hole 17 is provided at the lower end of the left baffle door 14, a right through hole 18 is provided at the lower end of the right baffle door 15, a left circular plate 19 is clamped inside the left through hole 17, and a right circular plate 20 is clamped inside the right through hole 18.

[0028] In order to facilitate the protection of the gas Roots flowmeter, the left baffle door 14 and the right baffle door 15 are respectively fixed with a plurality of limit blocks 16, and the limit blocks 16 are fixed to the cover 13 by bolts. The left circular plate 19 and the right circular plate 20 are respectively fixed with a plurality of ear plates 21, and the ear plates 21 are fixed to the cover 13 by bolts.

[0029] In this embodiment, the front shell cover 1, the rear shell cover 2 and the display 9 are wrapped by the cover shell 13 to protect the gas Roots flowmeter. When not in use, they are wrapped and stored. When in use, the left circular plate 19 and the right circular plate 20 are removed, the left through hole 17 and the right through hole 18 are opened, and the left baffle 4 and the right baffle 5 are connected.

[0030] The left through hole 17 and the right through hole 18 can be opened by removing the left circular plate 19 and the right circular plate 20, so as to facilitate the left and right fixed installation of external connecting objects, thereby facilitating work. Through the setting of the cover shell 13, the gas Roots flowmeter is wrapped and protected to avoid exposure to the outside and damage. The left and right sides of the cover shell 13 can be opened by removing the left baffle door 14 and the right baffle door 15, so as to facilitate the loading and unloading of the gas Roots flowmeter.

[0031] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A gas Roots flowmeter that is easy to maintain, comprising a front shell cover (1) and a support (8), characterized in that: The rear side of the front shell cover (1) is sealed with the rear shell cover (2) by bolt clamping, and the upper ends of the front shell cover (1) and the rear shell cover (2) are respectively fixedly provided with bases (3), the left sides of the front shell cover (1) and the rear shell cover (2) are clamped with a left baffle (4), and the right sides of the front shell cover (1) and the rear shell cover (2) are clamped with a right baffle (5), and the lower ends of the front shell cover (1) and the rear shell cover (2) are fixedly clamped with an arc seat (11) by bolts, and the lower end of the arc seat (11) is fixedly provided with a push rod (12), a cover shell (13) is fixed at the lower end of the push rod (12) by bolts, a left baffle door (14) is clamped on the left side of the cover shell (13), a right baffle door (15) is clamped on the right side of the cover shell (13), a left through hole (17) is provided at the lower end of the left baffle door (14), a right through hole (18) is provided at the lower end of the right baffle door (15), a left circular plate (19) is clamped inside the left through hole (17), and a right circular plate (20) is clamped inside the right through hole (18).

2. A gas Roots flowmeter that is easy to maintain according to claim 1, characterized in that: The upper end of the base (3) is fixedly connected to a bottom plate (6) by means of bolts, a support seat (7) is fixedly arranged on the upper end of the bottom plate (6), and a support pillar (8) is fixedly arranged on the upper end of the support seat (7).

3. The gas Roots flowmeter convenient for maintenance according to claim 1, characterized in that: A display (9) is fixedly arranged at the upper end of the support (8), a display screen (10) is fixedly arranged at the front side of the display (9), and the front shell cover (1) and the rear shell cover (2) are respectively arranged inside the cover shell (13).

4. The gas Roots flowmeter convenient for maintenance according to claim 1, characterized in that: The left stopper (14) and the right stopper (15) are respectively fixedly provided with a plurality of limit blocks (16), and the limit blocks (16) are fixedly provided on the cover shell (13) by means of bolts.

5. The gas Roots flowmeter convenient for maintenance according to claim 1, characterized in that: The left circular plate (19) and the right circular plate (20) are respectively fixedly provided with a plurality of ear plates (21), and the ear plates (21) are fixedly provided on the cover shell (13) by means of bolts.

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