Automatic flow adjusting device of bell jar type gas flow standard device

Abstract

The utility model relates to the technical field of flow regulation, in particular to an automatic flow regulation device of a bell jar type gas flow standard device, which comprises an automatic regulation device mounting total component, and a support plate is fixedly connected to the inner ring surface of the automatic regulation device mounting total component. According to the automatic flow adjusting device of the bell jar type gas flow standard device, through dislocation of a first circulation opening and a second circulation opening, the flow can be opened and closed, the flow can be adjusted, and therefore efficient automatic flow adjustment can be conducted; the clamping plate is fixedly connected with the surface of the side edge of the automatic adjusting device installation total component, the reset spring is inserted into the surface of the inner ring of the clamping plate in a limiting mode, and the automatic adjusting device installation total component can be installed in the bell jar type gas flow standard device in a clamping mode after the transmission rod is pushed by the reset spring.

Description

TECHNICAL FIELD

[0001] The utility model relates to flow regulation technical field especially relates to a clock bell -shaped gas flow standard device's flow automatic regulating device. BACKGROUND

[0002] Clock bell -shaped gas flow standard device is with gas as medium, to gas flowmeter verification, calibration and inspection standard equipment, the standard device generally by clock bell -shaped, liquid tank, send information mechanism, pressure compensation mechanism, gas source and test pipeline constitute, to the application of a clock bell -shaped gas flow standard device is increasingly widely used, therefore, the demand of a clock bell -shaped gas flow standard device is increasing, standard device is by the movable clock bell -shaped cover body of coaxial with fixed liquid tank seal liquid constitutes a volume variable sealed standard measuring chamber, make the measuring chamber of standard device full of gas, connect the flowmeter to be measured, open the valve and make the gas in the measuring chamber of standard device flow through the flowmeter to be detected, or empty the standard device, then make the gas first through the flowmeter to be detected and blow into the measuring chamber of standard device, the gas volume that flows into or flows out the measuring chamber of standard device is measured by the timepiece, the instantaneous flow of gas can be calculated by the ratio of the measuring chamber volume corresponding to the clock bell -shaped cover body drop or rise height and time, when using clock bell -shaped gas flow standard device, the flow needs to be automatically regulated.

[0003] In summary, the flow regulating device for traditional clock bell -shaped gas flow standard device needs to be manually regulated when using, this can influence the accuracy of regulation and be affected by regional regulation, cannot carry out factory regulation, and when the user needs to install the regulating device, it is not convenient enough, needs to use auxiliary tool, therefore, particularly need a clock bell -shaped gas flow standard device's flow automatic regulating device. UTILITY MODEL CONTENTS

[0004] The utility model discloses a clock bell -shaped gas flow standard device's flow automatic regulating device to solve the problem in the prior art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a clock bell -shaped gas flow standard device's flow automatic regulating device, including automatic regulating device installation total component, the inner ring surface of automatic regulating device installation total component is fixedly connected with the supporting plate, the side surface of supporting plate is equipped with flow regulating mechanism,

[0006] The flow adjusting mechanism comprises a protection shell which is mounted on the inner ring surface of the automatic adjusting device mounting total component, the inner ring surface of the protection shell is fixedly connected with a motor, the top end of the output shaft of the motor is fixedly sleeved with an output gear, the side surface of the output gear is transmissionally connected with a transmission gear, the bottom surface of the transmission gear is fixedly connected with a first sealing sheet, the inner ring surface of the automatic adjusting device mounting total component is limitingly connected with a second sealing sheet, the outer ring surface of the automatic adjusting device mounting total component is limitingly sleeved with a rubber ring, the side surface of the automatic adjusting device mounting total component is fixedly connected with a clamping plate, the inner ring surface of the clamping plate is fixedly connected with a return spring, the side surface of the return spring is mounted with a clamping push plate, the side surface of the automatic adjusting device mounting total component is fixedly connected with a mounting supporting plate, the side surface of the mounting supporting plate is mounted with a control mainboard assembly, the side surface of the automatic adjusting device mounting total component is mounted with a temperature sensor, and the side surface of the automatic adjusting device mounting total component is mounted with an automatic controller.

[0007] Preferably, the inner ring surface of the clamping plate is provided with a clamping opening, and the size of the clamping opening and the clamping push plate is matched with each other.

[0008] Preferably, the side surface of the second sealing sheet is provided with a first flow-through opening, and the number of the first flow-through openings is multiple.

[0009] Preferably, the side surface of the clamping plate is provided with a plug-in opening, and the structure of the plug-in opening and the clamping push plate is matched with each other.

[0010] Preferably, the side surface of the first sealing sheet is provided with a second flow-through opening, and the number of the second flow-through openings is multiple and the second flow-through openings penetrate the first sealing sheet.

[0011] Preferably, the side surface of the supporting plate is fixedly connected with a limiting shaft, the inner ring surface of the limiting shaft is limitingly connected with a transmission rod, and the supporting plate is connected through the limiting shaft and the transmission rod.

[0012] Preferably, the side surface of the supporting plate is fixedly connected with a pressure sensor, and the pressure sensor is arranged around the automatic adjusting device mounting total component as a center point.

[0013] Preferably, the outer ring surface of the automatic adjusting device mounting total component is provided with a sleeving opening, and the size of the sleeving opening and the rubber ring is matched with each other.

[0014] Compared with the prior art, the flow adjusting mechanism has the advantages that:

[0015] 1. The automatic flow adjustment device of this bell-shaped gas flow standard device uses a first sealing plate that is limited and snapped onto the inner ring surface of the automatic adjustment device mounting assembly, and a second flow opening on the first sealing plate. With the second sealing plate and the first flow opening thereon, after the motor is started, it drives the first sealing plate to rotate. The misalignment of the first and second flow openings enables the flow rate to be opened, closed, and adjusted, thus achieving efficient automatic flow adjustment and meeting the user's need for automatic adjustment.

[0016] 2. The automatic flow adjustment device of the bell-shaped gas flow standard device uses a rubber ring that limits the outer surface of the automatic adjustment device mounting assembly, a snap-fit ​​plate that is fixedly connected to the side surface of the automatic adjustment device mounting assembly, and a return spring that limits the inner surface of the snap-fit ​​plate. After the transmission rod is pushed by the return spring, the automatic adjustment device mounting assembly can be snapped into the bell-shaped gas flow standard device, which meets the user's need for efficient snap-fit ​​installation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a top view of the structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the rear view structure of this utility model;

[0020] Figure 4 This is a top-sectional view of the present invention.

[0021] Figure 5 This is a side sectional view of the present invention.

[0022] Figure 6 For the present utility model Figure 4 Enlarged view of the structure at point A in the middle.

[0023] In the diagram: 1. Automatic adjustment device mounting assembly; 2. Support plate; 3. Flow regulation mechanism; 301. Pressure sensor; 302. Mounting tray; 303. Control main board assembly; 304. Temperature sensor; 305. Automatic controller; 306. Snap-fit ​​plate; 307. Return spring; 308. Snap-fit ​​push plate; 309. Snap-fit ​​opening; 310. Insertion opening; 311. Rubber ring; 312. Sleeve opening; 313. Protective shell; 314. Motor; 315. Output gear; 316. Transmission rod; 317. Transmission gear; 318. First sealing plate; 319. Second sealing plate; 320. First flow opening; 321. Second flow opening; 4. Limiting shaft. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-6 This utility model provides a technical solution: an automatic flow adjustment device for a bell-shaped gas flow standard device, including an automatic adjustment device mounting assembly 1, a support plate 2 fixedly connected to the inner ring surface of the automatic adjustment device mounting assembly 1, and a flow adjustment mechanism 3 installed on the side surface of the support plate 2.

[0026] The flow regulating mechanism 3 includes a protective shell 313, which is mounted on the inner ring surface of the automatic regulating device mounting assembly 1. A motor 314 is fixedly connected to the inner ring surface of the protective shell 313. An output gear 315 is fixedly sleeved on the top of the output shaft of the motor 314. A transmission gear 317 is drivenly connected to the side surface of the output gear 315. A first sealing plate 318 is fixedly connected to the bottom surface of the transmission gear 317. A second sealing plate 319 is locked onto the inner ring surface of the automatic regulating device mounting assembly 1. A rubber ring 311 is locked onto the outer ring surface of the automatic regulating device mounting assembly 1. A snap-fit ​​plate 306 is fixedly connected to the side surface of the automatic adjustment device mounting assembly 1. A return spring 307 is fixedly connected to the inner ring surface of the snap-fit ​​plate 306. A snap-fit ​​push plate 308 is installed on the side surface of the return spring 307. A mounting bracket 302 is fixedly connected to the side surface of the automatic adjustment device mounting assembly 1. A control main board assembly 303 is installed on the side surface of the mounting bracket 302. A temperature sensor 304 is installed on the side surface of the automatic adjustment device mounting assembly 1. An automatic controller 305 is installed on the side surface of the automatic adjustment device mounting assembly 1. When the user needs to use the automatic flow adjustment device of the bell-shaped gas flow standard device... The automatic adjustment device needs to be snapped into the flow port of the bell-shaped gas flow standard device. During installation, the rubber ring 311 of the outer ring limiting sleeve of the automatic adjustment device mounting assembly 1 is snapped into the upper flow port of the bell-shaped gas flow standard device. Then, the other end needs to be snapped into the lower flow port of the bell-shaped gas flow standard device by snapping the snapping push plate 308. The push plate 308 is pushed by the reset spring 307 to snap the automatic adjustment device mounting assembly 1 into place. The temperature sensor 304 and pressure sensor 301 measure the temperature or pressure data and transmit it to the control main board assembly. In 303, the automatic controller 305 can control the motor 314 to start. After the motor 314 starts, it can drive the output gear 315 fixedly sleeved at the top of its output shaft to rotate. After the output gear 315 rotates, it can drive the transmission gear 317 to rotate. Finally, it can rotate the first sealing plate 318. After the first sealing plate 318 rotates, it can misalign the second flow opening 321 on the first sealing plate 318 and the first flow opening 320 on the second sealing plate 319, thereby opening and closing the flow opening size, so as to automatically adjust and control the flow rate.

[0027] Furthermore, the inner surface of the snap-fit ​​plate 306 is provided with a snap-fit ​​opening 309, and the snap-fit ​​opening 309 and the snap-fit ​​push plate 308 are matched in size. The snap-fit ​​opening 309, which is matched in size with the snap-fit ​​push plate 308, makes it convenient for the user to snap and limit the snap-fit ​​push plate 308.

[0028] Furthermore, the side surface of the second sealing sheet 319 is provided with a first flow opening 320, and there are multiple first flow openings 320, which can be used for efficient flow.

[0029] Furthermore, the side surface of the snap-fit ​​plate 306 is provided with a plug-in opening 310, and the plug-in opening 310 and the snap-fit ​​push plate 308 are structurally compatible. The plug-in opening 310, which is structurally compatible with the snap-fit ​​push plate 308, facilitates the user to use and limit the snap-fit ​​of the snap-fit ​​push plate 308.

[0030] Furthermore, a second flow opening 321 is provided on the side surface of the first sealing sheet 318, and there are multiple second flow openings 321 that penetrate through the first sealing sheet 318. The multiple second flow openings 321 that penetrate through the first sealing sheet 318 facilitate efficient flow by the user.

[0031] Furthermore, a limiting shaft 4 is fixedly connected to the side surface of the support plate 2, and a transmission rod 316 is limited and snapped onto the inner ring surface of the limiting shaft 4. The support plate 2 is connected to the transmission rod 316 through the limiting shaft 4.

[0032] Furthermore, a pressure sensor 301 is fixedly connected to the side surface of the support plate 2, and the pressure sensor 301 is arranged around the automatic adjustment device mounting component 1 as the center point. The pressure sensor 301 arranged around the automatic adjustment device mounting component 1 as the center point can facilitate the user to perform efficient pressure measurement.

[0033] Furthermore, the outer ring surface of the automatic adjustment device mounting component 1 is provided with a fitting opening 312, and the fitting opening 312 and the rubber ring 311 are matched in size. The fitting opening 312, which is matched in size with the rubber ring 311, can facilitate the user to use the rubber ring 311 for limiting and locking.

[0034] Working Principle: When the user needs to use the automatic flow adjustment device of the bell-shaped gas flow standard device, the automatic adjustment device needs to be snapped into the flow port of the bell-shaped gas flow standard device. During installation, the rubber ring 311 of the outer ring limiting sleeve of the automatic adjustment device mounting component 1 is snapped into the upper flow port of the bell-shaped gas flow standard device. Then, the other end needs to be snapped into the lower flow port of the bell-shaped gas flow standard device by snapping the snapping push plate 308. The reset spring 307 pushes the snapping push plate 308, which can snap the automatic adjustment device mounting component 1 into place. The temperature sensor 304 and pressure sensor 301 measure the flow. Temperature or pressure data can be transmitted to the control mainboard assembly 303, and the automatic controller 305 can control the motor 314 to start. After the motor 314 starts, it can drive the output gear 315 fixedly sleeved at the top of its output shaft to rotate. After the output gear 315 rotates, it can drive the transmission gear 317 to rotate. Finally, it can rotate the first sealing plate 318. After the first sealing plate 318 rotates, it can misalign the second flow opening 321 on the first sealing plate 318 and the first flow opening 320 on the second sealing plate 319, thereby opening and closing the flow opening size, thus enabling automatic adjustment and control of the flow rate.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic flow regulating device for a bell-shaped gas flow standard device, comprising an automatic regulating device mounting assembly (1), characterized in that: The inner ring surface of the automatic adjustment device mounting assembly (1) is fixedly connected to a support plate (2), and a flow adjustment mechanism (3) is installed on the side surface of the support plate (2). The flow regulating mechanism (3) includes a protective shell (313), which is installed on the inner ring surface of the automatic regulating device mounting assembly (1). A motor (314) is fixedly connected to the inner ring surface of the protective shell (313). An output gear (315) is fixedly sleeved on the top of the output shaft of the motor (314). A transmission gear (317) is drivenly connected to the side surface of the output gear (315). A first sealing plate (318) is fixedly connected to the bottom surface of the transmission gear (317). A second sealing plate (319) is limited and snapped onto the inner ring surface of the automatic regulating device mounting assembly (1). A rubber ring is limited and sleeved onto the outer ring surface of the automatic regulating device mounting assembly (1). 311) A snap-fit ​​plate (306) is fixedly connected to the side surface of the automatic adjustment device mounting assembly (1). A return spring (307) is fixedly connected to the inner ring surface of the snap-fit ​​plate (306). A snap-fit ​​push plate (308) is installed on the side surface of the return spring (307). A mounting bracket (302) is fixedly connected to the side surface of the automatic adjustment device mounting assembly (1). A control main board assembly (303) is installed on the side surface of the mounting bracket (302). A temperature sensor (304) is installed on the side surface of the automatic adjustment device mounting assembly (1). An automatic controller (305) is installed on the side surface of the automatic adjustment device mounting assembly (1).

2. The automatic flow adjustment device for a bell-shaped gas flow standard device according to claim 1, characterized in that: The inner surface of the snap-fit ​​plate (306) is provided with a snap-fit ​​opening (309), and the snap-fit ​​opening (309) and the snap-fit ​​push plate (308) are matched in size.

3. The automatic flow adjustment device for a bell-shaped gas flow standard device according to claim 1, characterized in that: The second sealing sheet (319) has a first flow opening (320) through its side surface, and there are multiple first flow openings (320).

4. The automatic flow adjustment device for a bell-shaped gas flow standard device according to claim 1, characterized in that: The side surface of the snap-fit ​​plate (306) is provided with a plug-in opening (310), and the plug-in opening (310) and the snap-fit ​​push plate (308) are structurally compatible.

5. The automatic flow adjustment device for a bell-shaped gas flow standard device according to claim 1, characterized in that: The first sealing sheet (318) has a second flow opening (321) on its side surface, and there are multiple second flow openings (321) that penetrate the first sealing sheet (318).

6. The automatic flow adjustment device for a bell-shaped gas flow standard device according to claim 1, characterized in that: The side surface of the support plate (2) is fixedly connected to a limiting shaft (4), and the inner ring surface of the limiting shaft (4) is limited and snapped with a transmission rod (316). The support plate (2) is connected to the limiting shaft (4) and the transmission rod (316).

7. The automatic flow adjustment device for a bell-shaped gas flow standard device according to claim 1, characterized in that: A pressure sensor (301) is fixedly connected to the side surface of the support plate (2), and the pressure sensor (301) is arranged around the automatic adjustment device mounting component (1) as the center point.

8. The automatic flow adjustment device for a bell-shaped gas flow standard device according to claim 1, characterized in that: The outer ring surface of the automatic adjustment device mounting component (1) is provided with a sleeve opening (312), and the sleeve opening (312) and the rubber ring (311) are matched in size.

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