CN213902570U

CN213902570U - Calibration gas flowmeter convenient to remove

Info

Publication number: CN213902570U
Application number: CN202022525654.XU
Authority: CN
Inventors: 倪伟俊
Original assignee: Jilin Guohui Apparatus Test Co ltd
Current assignee: Jilin Guohui Apparatus Test Co ltd
Priority date: 2020-11-04
Filing date: 2020-11-04
Publication date: 2021-08-06
Anticipated expiration: 2030-11-04

Abstract

The utility model discloses a calibration gas flowmeter convenient to remove, concretely relates to gaseous calibration technical field, which comprises a base, the last fixed surface on chassis installs calibration equipment, calibration equipment's left side and the one end fixedly connected with gas flowmeter body that is close to the chassis, calibration equipment's left side and the one end fixedly connected with time-recorder of keeping away from the chassis, calibration equipment's inside is provided with measuring mechanism, the inside right side in chassis is provided with moving mechanism, the inside left side in chassis is provided with steering mechanism. The utility model discloses a rotation that rotates the motor drives helical gear No. one, utilizes helical gear and No. two helical gear engagements to drive an axis of rotation and rotate, consequently the wheel of traveling can rotate, and the rotation through turning to the motor drives steering gear's rotation, and the position of two racks is in steering gear's both sides, and consequently steering gear rotates the opposite direction that makes the rack remove, the rotation of the steering wheel of consequently being convenient for.

Description

Calibration gas flowmeter convenient to remove

Technical Field

The utility model relates to a gaseous calibration technical field, more specifically say, the utility model relates to a calibration gas flowmeter convenient to remove.

Background

The necessity of measuring gas flow, especially large gas flow, has increased in industry, but it is rather difficult to measure gas flow correctly, and a gas flow meter is a meter for measuring gas flow. The flow meter for measuring the gas flow rate has various types, and almost all flow meters need to be calibrated.

However, in actual use, most calibration devices for gas flow meters are not easily moved, and therefore further improvement is required.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned deficiencies of the prior art, embodiments of the present invention provide a calibration gas flow meter that is easy to move to solve the problems set forth in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a calibration gas flowmeter convenient to remove, includes the chassis, the last fixed surface on chassis has calibration equipment, calibration equipment's left side and the one end fixedly connected with gas flowmeter body that is close to the chassis, calibration equipment's left side and the one end fixedly connected with time-recorder of keeping away from the chassis, calibration equipment's inside is provided with measuring mechanism, the inside right side in chassis is provided with moving mechanism, the inside left side in chassis is provided with steering mechanism.

Further, the measuring mechanism includes the inside left intake pipe of fixed mounting at calibration equipment, the one end of intake pipe is provided with the air intake, the other end fixedly connected with of intake pipe surveys buret, the middle fixed mounting who surveys buret has the baffle.

Furthermore, the right side at calibration equipment top is rotated and is connected with the plate washer, be provided with the graduated flask between plate washer and the survey buret, the front of graduated flask is pasted and is had the graduation apparatus, it has liquid water to fill in the survey buret.

Furthermore, the baffle is close to chassis one end fixed mounting has the card strip of cockscomb structure, the draw-in groove of cockscomb structure is seted up to the right-hand member of calibration equipment bottom, card strip and draw-in groove joint.

Further, the moving mechanism comprises a rotating motor fixedly installed inside the chassis, an output shaft of the rotating motor is fixedly connected with a first helical gear, the front side and the back side of the right side of the chassis are rotatably connected with a first rotating shaft through bearings, two ends of the first rotating shaft are fixedly connected with traveling wheels, a second helical gear is fixedly sleeved in the middle of the first rotating shaft, and the first helical gear is meshed with the second helical gear.

Further, steering mechanism includes two connecting rods that wear to locate the chassis left side front and the back, two the centre of connecting rod and the equal fixed mounting in one side that is close to each other have a rack, two the meshing is connected with steering gear between the rack, the inside of chassis is close to steering gear's top fixed mounting and has a steering motor, the surface that turns to the motor output shaft cup joints with steering gear is fixed, two the both ends of connecting rod are all rotated and are connected with the steering panel, the centre of steering panel is rotated through the bearing and is connected with No. two axis of rotation, the other end fixedly connected with directive wheel of No. two axis of rotation.

Further, the connection part of the air inlet pipe and the measuring pipe is set to be a closed environment.

The utility model discloses a technological effect and advantage:

1. compared with the prior art, the rotation through rotating the motor drives helical gear No. one, utilize helical gear and No. two helical gear engagements, thereby drive a axis of rotation and rotate, consequently, the wheel of traveling can rotate, the rotation through turning to the motor drives the rotation of steering gear, because turn to the gear and be connected with the rack toothing, and the position of two racks is in the both sides that turn to the gear, consequently, the steering gear rotates the opposite direction that makes the rack remove, thereby connecting rod moving direction is opposite, thereby the steering plate both ends moving direction that the connecting rod promoted is opposite, thereby drive the rotation of directive wheel, consequently, can be convenient for remove.

2. Compared with the prior art, through setting up the intake pipe among the measuring mechanism and surveying the buret, can enter into the survey buret along the intake pipe with the air current through the gas flowmeter body, because the card strip and the draw-in groove joint of plate washer, make the graduated flask press close to with surveying the buret, consequently measure in the liquid water in the pipe can be pushed into the graduated flask by gas, consequently can be according to the gas volume and the gas time that the buret was surveyed to the gas entering of scale table and time-recorder record, can calculate and draw gas flow, thereby can the calibration gas flow.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the chassis structure of the present invention.

Fig. 3 is a schematic view of the structure of the steering motor of the present invention.

Fig. 4 is an enlarged schematic structural view of a point a in fig. 1 according to the present invention.

Fig. 5 is an enlarged schematic view of the structure at B in fig. 1 according to the present invention.

The reference signs are: 1. a chassis; 2. calibrating the device; 3. a gas flow meter body; 4. a timer; 5. an air inlet pipe; 6. an air inlet; 7. a measurement tube; 8. a partition plate; 9. a baffle plate; 10. a measuring cup; 11. a dial gauge; 12. liquid water; 13. clamping the strip; 14. a card slot; 15. rotating the motor; 16. a first bevel gear; 17. a first rotating shaft; 18. a running wheel; 19. a second bevel gear; 20. a connecting rod; 21. a rack; 22. a steering gear; 23. a steering motor; 24. a steering plate; 25. a second rotating shaft; 26. and a steering wheel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The calibration gas flowmeter convenient to move as shown in the accompanying drawings 1-5 comprises a chassis 1, a calibration device 2 is fixedly mounted on the upper surface of the chassis 1, a gas flowmeter body 3 is fixedly connected to the left side of the calibration device 2 and close to one end of the chassis 1, a timer 4 is fixedly connected to the left side of the calibration device 2 and far away from the one end of the chassis 1, a measuring mechanism is arranged inside the calibration device 2, a moving mechanism is arranged on the right side of the inside of the chassis 1, and a steering mechanism is arranged on the left side of the inside of the chassis 1.

In a preferred embodiment, the measuring mechanism comprises an air inlet pipe 5 fixedly installed at the left side inside the calibration device 2, one end of the air inlet pipe 5 is provided with an air inlet 6, the other end of the air inlet pipe 5 is fixedly connected with a measuring pipe 7, and a partition plate 8 is fixedly installed in the middle of the measuring pipe 7, so that the air of the air inlet 6 enters the measuring pipe 7 along the air inlet pipe 5, and the gas flowmeter body 3 can be calibrated according to the result.

In a preferred embodiment, a baffle 9 is rotatably connected to the right side of the top of the calibration device 2, a measuring cup 10 is arranged between the baffle 9 and the measuring tube 7, a scale 11 is adhered to the front surface of the measuring cup 10, and the measuring tube 7 is filled with liquid water 12 so as to measure the volume of the liquid water 12 in the measuring cup 10, thereby calculating the actual gas flow result.

In a preferred embodiment, a serrated clamping strip 13 is fixedly mounted at one end of the baffle 9 close to the chassis 1, a serrated clamping groove 14 is formed at the right end of the bottom of the calibration device 2, and the clamping strip 13 is clamped with the serrated clamping groove 14 so as to push the measuring cup 10 close to the measuring tube 7, thereby enabling the liquid water 12 entering the measuring cup 10 to be more accurate.

In a preferred embodiment, the moving mechanism comprises a rotating motor 15 fixedly installed inside the chassis 1, a first helical gear 16 is fixedly connected to an output shaft of the rotating motor 15, a first rotating shaft 17 is rotatably connected to the front surface and the back surface of the right side of the chassis 1 through bearings, traveling wheels 18 are fixedly connected to both ends of the first rotating shaft 17, a second helical gear 19 is fixedly sleeved in the middle of the first rotating shaft 17, and the first helical gear 16 and the second helical gear 19 are in meshed connection, so that the rotating motor 15 drives the traveling wheels 18 through simple gear transmission, and the traveling wheels 18 can rotate.

In a preferred embodiment, the steering mechanism comprises two connecting rods 20 penetrating through the front and the back of the left side of the chassis 1, racks 21 are fixedly mounted in the middle of the two connecting rods 20 and on the sides close to each other, a steering gear 22 is connected between the two racks 21 in a meshing manner, a steering motor 23 is fixedly mounted in the chassis 1 close to the top of the steering gear 22, the surface of an output shaft of the steering motor 23 is fixedly sleeved with the steering gear 22, two ends of the two connecting rods 20 are rotatably connected with steering plates 24, a second rotating shaft 25 is rotatably connected in the middle of the steering plates 24 through bearings, and a steering wheel 26 is fixedly connected to the other end of the second rotating shaft 25, so that the steering motor 23 is meshed with the racks 21 through the steering gear 22, and the traveling direction of the steering wheel 26 is changed.

In a preferred embodiment, the connection of the inlet pipe 5 to the measuring pipe 7 is arranged in a closed environment, so that no gas leaks at the connection of the inlet pipe 5 and the measuring pipe 7, which leads to inaccurate calibration gas flow.

The utility model discloses the theory of operation: when in use, the first helical gear 16 is driven by the rotation of the rotating motor 15, the first helical gear 16 is meshed with the second helical gear 19, so as to drive the first rotating shaft 17 to rotate, the traveling wheel 18 can rotate, the steering gear 22 is driven to rotate by the rotation of the steering motor 23, the steering gear 22 is meshed with the rack 21, and the two racks 21 are positioned at two sides of the steering gear 22, so that the rack 21 moves in the opposite direction due to the rotation of the steering gear 22, so that the connecting rod 20 moves in the opposite direction, the two ends of the steering plate 24 pushed by the connecting rod 20 move in the opposite direction, so as to drive the steering wheel 26 to rotate, so as to facilitate the movement, because the air inlet pipe 5 and the measuring pipe 7 are sealed, the air flow passing through the gas flowmeter body 3 can enter the measuring pipe 7 along the air inlet pipe 5, and because the clamping strip 13 of the baffle plate 9 is clamped with the clamping groove 14, make graduated flask 10 and survey buret 7 and press close to, consequently survey liquid water 12 in the buret 7 can be pushed into the graduated flask 10 by gas in, consequently can be according to the gaseous volume of 11 and the time-recorder 4 records of graduation apparatus and the time that gaseous entering surveyed the buret 7, can calculate and draw gas flow to can calibrate gas flow.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A calibrating gas meter convenient to move, comprising a chassis (1), characterized in that: the improved gas flowmeter is characterized in that a calibration device (2) is fixedly mounted on the upper surface of the chassis (1), one end of the calibration device (2) is fixedly connected with a gas flowmeter body (3) close to the chassis (1), one end of the calibration device (2) is fixedly connected with a timer (4) far away from the chassis (1), a measuring mechanism is arranged inside the calibration device (2), a moving mechanism is arranged on the right side inside the chassis (1), and a steering mechanism is arranged on the left side inside the chassis (1).

2. A portable calibration gas flow meter according to claim 1, wherein: measuring mechanism includes fixed mounting at inside left intake pipe (5) of calibration equipment (2), the one end of intake pipe (5) is provided with air intake (6), the other end fixedly connected with of intake pipe (5) surveys buret (7), the middle fixed mounting who surveys buret (7) has baffle (8).

3. A portable calibration gas flow meter according to claim 2, wherein: the right side at calibration equipment (2) top is rotated and is connected with plate washer (9), be provided with graduated flask (10) between plate washer (9) and survey buret (7), the front of graduated flask (10) is pasted and is had graduation apparatus (11), survey buret (7) intussuseption is filled with liquid water (12).

4. A portable calibration gas flow meter according to claim 3, wherein: the baffle (9) is close to chassis (1) one end fixed mounting has the card strip (13) of cockscomb structure, the draw-in groove (14) of cockscomb structure are seted up to the right-hand member of calibration equipment (2) bottom, card strip (13) and draw-in groove (14) joint.

5. A portable calibration gas flow meter according to claim 4, wherein: the moving mechanism comprises a rotating motor (15) fixedly installed inside a chassis (1), a first helical gear (16) is fixedly connected with an output shaft of the rotating motor (15), a first rotating shaft (17) is rotatably connected with the front side and the back side of the right side of the chassis (1) through bearings, a traveling wheel (18) is fixedly connected with the two ends of the first rotating shaft (17), a second helical gear (19) is fixedly sleeved in the middle of the first rotating shaft (17), and the first helical gear (16) and the second helical gear (19) are meshed and connected.

6. A portable calibration gas flow meter according to claim 5, wherein: steering mechanism includes two and wears to locate connecting rod (20) at chassis (1) left side front and the back, two the centre of connecting rod (20) and the equal fixed mounting in one side that is close to each other have rack (21), two the meshing is connected with steering gear (22) between rack (21), the inside of chassis (1) is close to the top fixed mounting of steering gear (22) and turns to motor (23), the surface and the steering gear (22) fixed cup joint of steering motor (23) output shaft, two the both ends of connecting rod (20) are all rotated and are connected with deflector (24), the centre of deflector (24) is rotated through the bearing and is connected with No. two axis of rotation (25), the other end fixedly connected with directive wheel (26) of No. two axis of rotation (25).

7. A portable calibration gas flow meter according to claim 6, wherein: the connection part of the air inlet pipe (5) and the measuring pipe (7) is set to be a closed environment.