CN216409268U

CN216409268U - Variable air volume control device for fresh air system

Info

Publication number: CN216409268U
Application number: CN202122782015.6U
Authority: CN
Inventors: 徐晓辉; 何虔
Original assignee: Shanghai Shanrong Energy Technology Co ltd
Current assignee: Shanghai Shanrong Energy Technology Co ltd
Priority date: 2021-11-13
Filing date: 2021-11-13
Publication date: 2022-04-29
Anticipated expiration: 2031-11-13

Abstract

The utility model discloses an air volume variable control device for a fresh air system, which is characterized in that a cleaning brush, a second servo motor, a dust collecting groove and a threaded sealing cover are arranged, the second servo motor is controlled by a single-chip microcomputer controller, when a valve block is completely closed, the single-chip microcomputer controller starts the second servo motor, the second servo motor drives the cleaning brush to rotate along the center circumference of the valve block, dust is removed from one end surface of the valve block facing to the air inlet direction, the dust falls into the dust collecting groove after dust removal, and a worker realizes the periodic cleaning of the dust in the dust collecting groove by screwing the threaded sealing cover. The sealing performance of the control valve is improved, so that the control valve can control the air quantity more accurately.

Description

Variable air volume control device for fresh air system

Technical Field

The utility model relates to the technical field of fresh air systems, in particular to an air volume changing control device for a fresh air system.

Background

The fresh air system is a set of independent air processing system consisting of an air supply system and an air exhaust system, and is divided into a pipeline type fresh air system and a pipeline-free fresh air system, wherein the pipeline type fresh air system consists of a fresh air fan and pipeline accessories, outdoor air is purified by the fresh air fan and is led into a room, and the indoor air is exhausted by a pipeline; the ductless fresh air system is composed of a fresh air fan, the fresh air fan is used for purifying outdoor air and guiding the purified outdoor air into a room, and the variable air volume control valve is a control mechanism used for controlling the air intake volume in the fresh air system.

However, the conventional variable air volume control device for the fresh air system has the following disadvantages;

1. the surface of the existing variable air volume control device is easy to accumulate dust after long-term use, and is inconvenient to clean.

2. The control valve plate of the existing variable air volume control device is not tightly sealed with the valve body, and a small amount of air still enters the room after the air inlet is closed, so that the variable air volume control precision is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an air volume changing control device for a fresh air system, which aims to solve the problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a new trend is variable air volume control device for system, includes valve casing, valve block, gear drive, cleaning brush, dust collecting groove and sealing strip, the inside of valve casing is provided with the valve block, the front portion of valve block is provided with the cleaning brush, the transfer line is installed to the one end of cleaning brush, second servo motor is installed at the rear portion of valve block, the centre of valve block is provided with the shaft coupling, second servo motor pivot is passed through the shaft coupling and is connected with the transfer line transmission, the dust collecting groove has just been seted up to the position of cleaning brush to the bottom of valve casing, the thread sealing lid is installed to the bottom in dust collecting groove, install the sealing strip on the annular end face of valve block.

As a further scheme of the utility model: the upper portion and the lower portion of the rear end face of the valve block are respectively provided with an upper transmission shaft and a lower transmission shaft, the upper transmission shaft is installed at the upper end of the valve casing in an embedded mode and is in rotating connection with an upper bearing, the lower transmission shaft is installed at the lower end of the valve casing in an embedded mode and is in rotating connection with a lower bearing, and the upper transmission shaft is provided with a gear transmission mechanism.

As a still further scheme of the utility model: gear drive includes big drive gear, small drive gear, a servo motor and gear guard, the gear guard is installed at the valve casing top, be provided with big drive gear and small drive gear in the gear guard, install a servo motor on the gear guard, small drive gear installs at a servo motor bottom pivot end, big drive gear installs on last transmission shaft top, big drive gear meshes with small drive gear.

As a still further scheme of the utility model: all be annular equidistant on the preceding terminal surface of valve casing and the rear end face and seted up four connecting holes.

As a still further scheme of the utility model: install single chip microcomputer controller on one side outer wall of valve casing, single chip microcomputer controller passes through the wire respectively with external power source, first servo motor and second servo motor electric connection.

As a still further scheme of the utility model: the length of the cleaning brush is equal to the radius of the valve plate, and brush bristles are uniformly arranged on one side, facing the valve plate, of the cleaning brush.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the cleaning brush, the second servo motor, the dust collection groove and the threaded sealing cover are arranged, the second servo motor is controlled by the single chip microcomputer controller, when the valve plate is completely closed, the second servo motor is started by the single chip microcomputer controller, the second servo motor drives the cleaning brush to rotate along the center circumference of the valve plate, dust is removed from one end face of the valve plate facing to the air inlet direction, the dust falls into the dust collection groove after dust removal, and personnel can regularly clean the dust in the dust collection groove by screwing the threaded sealing cover.

2. According to the utility model, the sealing strip is arranged on the annular end surface of the valve plate according to the seal, and the sealing strip can be filled into the gap between the valve plate and the inner wall of the valve shell after the variable air volume control valve is completely closed, so that the sealing property of the control valve is improved, and the air volume controlled by the control valve is more accurate.

Drawings

Fig. 1 is a front view of an air volume changing control device for a fresh air system.

Fig. 2 is a side sectional view of a variable air volume control device for a fresh air system.

Fig. 3 is an enlarged view of a structure at a in fig. 1 of an air volume changing control device for a fresh air system.

1. A valve housing; 2. a valve plate; 3. an upper transmission shaft; 4. a lower transmission shaft; 5. an upper bearing; 6. a lower bearing; 7. a gear transmission mechanism; 701. a large transmission gear; 702. a small drive gear; 703. a first servo motor; 704. a gear cover; 8. a cleaning brush; 9. a second servo motor; 10. a transmission rod; 11. a coupling; 12. a dust collection groove; 13. a thread sealing cover; 14. connecting holes; 15. a single chip controller; 16. a sealing strip.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 3, in the embodiment of the present invention, an air volume changing control device for a fresh air system includes a valve housing 1, a valve plate 2, a gear transmission mechanism 7, a cleaning brush 8, a dust collecting groove 12, and a sealing strip 16, the valve plate 2 is disposed inside the valve housing 1, the cleaning brush 8 is disposed in front of the valve plate 2, a transmission rod 10 is installed at one end of the cleaning brush 8, a second servo motor 9 is installed at the rear of the valve plate 2, a coupler 11 is disposed in the middle of the valve plate 2, a rotating shaft of the second servo motor 9 is in transmission connection with the transmission rod 10 through the coupler 11, the dust collecting groove 12 is disposed at a position of the bottom of the valve housing 1, which faces the cleaning brush 8, a thread sealing cover 13 is installed at the bottom of the dust collecting groove 12, and the sealing strip 16 is installed on an annular end surface of the valve plate 2.

An upper transmission shaft 3 and a lower transmission shaft 4 are respectively installed on the upper portion and the lower portion of the rear end face of the valve block 2, the upper transmission shaft 3 is installed on an upper bearing 5 at the upper end of the valve casing 1 in an embedded mode and is connected in a rotating mode, the lower transmission shaft 4 is installed on a lower bearing 6 at the lower end of the valve casing 1 in an embedded mode and is connected in a rotating mode, and a gear transmission mechanism 7 is installed on the upper transmission shaft 3.

The gear transmission mechanism 7 comprises a large transmission gear 701, a small transmission gear 702, a first servo motor 703 and a gear cover 704, the gear cover 704 is installed at the top of the valve casing 1, the large transmission gear 701 and the small transmission gear 702 are arranged in the gear cover 704, the first servo motor 703 is installed on the gear cover 704, the small transmission gear 702 is installed at the bottom rotating shaft end of the first servo motor 703, the large transmission gear 701 is installed at the top end of the upper transmission shaft 3, and the large transmission gear 701 is meshed with the small transmission gear 702.

All be annular equidistant four connecting holes 14 of having seted up on valve casing 1's preceding terminal surface and the rear end face, the setting of connecting hole 14 can be conveniently with this device installation in the pipeline of new trend system.

Install single chip microcomputer controller 15 on one side outer wall of valve casing 1, single chip microcomputer controller 15 model is STC89S52, single chip microcomputer controller 15 accessible is connected with the computer and implants the programming procedure, set for clean duration and clean cycle, realize regularly clean, clean procedure starts the back, at first close valve block 2 through gear drive 7, then start second servo motor 9 and drive cleaning brush 8 and clean, single chip microcomputer controller 15 respectively with external power source, first servo motor 703 and second servo motor 9 electric connection through the wire.

The length of cleaning brush 8 equals with the radius of valve block 2, and the design can make cleaning brush 8 more thorough to valve block 2 surface cleaning like this, and cleaning brush 8 evenly is provided with the brush hair towards one side of valve block 2.

The working principle of the utility model is as follows:

when in use, the singlechip controller 15 controls the first servo motor 703 to start, the first servo motor 703 drives the small transmission gear 702 to rotate, the small transmission gear 702 drives the large transmission gear 701 to rotate by meshing with the large transmission gear 701, the large transmission gear 701 drives the upper transmission shaft 3 to rotate, further drives the valve plate 2 to rotate to adjust the air intake, when the cleaning time is up, under the singlechip controller 15, the gear transmission mechanism 7 drives the valve plate 2 to be completely closed, after the valve plate 2 is completely closed, the sealing strip 16 arranged on the valve plate 2 is automatically filled into the gap between the valve plate 2 and the valve casing 1, so that the sealing is tighter, then the second servo motor 9 is started, the second servo motor 9 drives the cleaning brush 8 to rotate circumferentially to sweep dust on the valve plate 2 towards the air inlet end face, the dust falls into the dust collecting groove 12, then, the worker periodically unscrews the screw seal cap 13 to discharge the dust in the dust collecting tank 12.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a new trend is variable air volume controlling means for system, includes valve casing (1), valve block (2), gear drive (7), cleaning brush (8), groove (12) and sealing strip (16) gather dust, its characterized in that: the inside of valve casing (1) is provided with valve block (2), the front portion of valve block (2) is provided with cleaning brush (8), transfer line (10) are installed to the one end of cleaning brush (8), second servo motor (9) are installed at the rear portion of valve block (2), the centre of valve block (2) is provided with shaft coupling (11), second servo motor (9) pivot is passed through shaft coupling (11) and is connected with transfer line (10) transmission, dust collecting groove (12) have just been seted up to the position of cleaning brush (8) to the bottom of valve casing (1), thread sealing lid (13) are installed to the bottom of dust collecting groove (12), install sealing strip (16) on the annular end face of valve block (2).

2. The variable air volume control device for the fresh air system according to claim 1, characterized in that: last transmission shaft (3) and bottom drive axle (4) are installed respectively to the rear end face upper portion and the lower part of valve block (2), go up transmission shaft (3) embedded installation and rotate in upper bearing (5) of valve casing (1) upper end and connect, bottom drive axle (4) rotate with embedded lower bearing (6) of installing at valve casing (1) lower extreme and are connected, go up and install gear drive (7) on transmission shaft (3).

3. The variable air volume control device for the fresh air system according to claim 1, characterized in that: gear drive mechanism (7) are including big drive gear (701), little drive gear (702), first servo motor (703) and gear cover (704), install at valve casing (1) top gear cover (704), be provided with big drive gear (701) and little drive gear (702) in gear cover (704), install first servo motor (703) on gear cover (704), install at first servo motor (703) bottom pivot end little drive gear (702), big drive gear (701) are installed on last transmission shaft (3) top, big drive gear (701) and little drive gear (702) meshing.

4. The variable air volume control device for the fresh air system according to claim 1, characterized in that: four connecting holes (14) are formed in the front end face and the rear end face of the valve casing (1) at equal intervals in an annular mode.

5. The variable air volume control device for the fresh air system according to claim 1, characterized in that: install single chip microcomputer controller (15) on one side outer wall of valve casing (1), single chip microcomputer controller (15) pass through the wire respectively with external power source, first servo motor (703) and second servo motor (9) electric connection.

6. The variable air volume control device for the fresh air system according to claim 1, characterized in that: the length of cleaning brush (8) equals with the radius of valve block (2), one side of cleaning brush (8) towards valve block (2) evenly is provided with the brush hair.