CN204842422U - Novel mechanical type becomes air regulation control system - Google Patents
Novel mechanical type becomes air regulation control system Download PDFInfo
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- CN204842422U CN204842422U CN201520426231.9U CN201520426231U CN204842422U CN 204842422 U CN204842422 U CN 204842422U CN 201520426231 U CN201520426231 U CN 201520426231U CN 204842422 U CN204842422 U CN 204842422U
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- valve
- rope
- cabinet door
- pulley
- cabinet
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Abstract
The utility model provides a novel mechanical type becomes air regulation control system. Novel mechanical type becomes air regulation control system includes the cabinet body, cabinet door, vent, two valves, cabinet door counter weight, valve counter weight and transmission system, the cabinet door is located cabinet side face, the vent is located cabinet body top, two the valve is located vent department, and with the cabinet body coupling, cabinet door counter weight with the valve counter weight is all located the cabinet is internal, transmission system includes a plurality of ropes and a plurality of pulley, and is a plurality of the pulley is located the valve with the cabinet body, it is a plurality of the rope is respectively with a plurality of the pulley butt, cabinet door counter weight is passed through the rope is connected the valve with the cabinet door, the valve counter weight is passed through the rope is connected the valve. The utility model provides a novel mechanical type becomes air regulation control system solves prior art's the technical problem that change air regulation control system is with high costs, the fault rate is high, the noise is big.
Description
Technical field
The utility model relates to laboratory equipment field, is specifically related to a kind of mechanical variable air rate regulation and control system.
Background technology
Vent cabinet is laboratory key equipment, and the toxic gas that the experimentations such as physics, chemistry, biology produce is displaced into outdoor by it, maintains room air cleaning thus shields to experiment surrounding environment and experimenter.Due to experimentation, the frequent open and close of vent cabinet door, for guaranteeing that pernicious gas can be discharged in time, turbulent flow can not be produced too soon again due to air velocity, vent cabinet face wind speed should control within the specific limits, need the variable air rate valve or the blower fan frequency that regulate vent cabinet top exhaust outlet like this, control exhaust air rate size.
Multiple VAV Control Solution is there has been proposed: as carried out by measuring air static pressure in acoustic wind cabinet the Static prestressed-pile method controlled for realizing VAV control; The flowmeter survey wind speed exported by the hood face velocity detector or laboratory hood that are arranged on laboratory hood edge of opening or the blast velocity control method of flow; By investing variable resistor or Hall element, the photoelectric sensor etc. of cabinet door, the stroke signal of cabinet door is become the cabinet door Stroke Control method delivering to adjuster.
But these control technologys not only complex structure, cost is high, control system feedback time is of a specified duration, the more important thing is that the gas of discharging due to chemical laboratory vent cabinet is often corrosive gas, corrosiveness is had to the electronic devices and components of system, thus vent cabinet fault rate can be caused high, have influence on the normal use of vent cabinet.
For this reason, someone proposes to adopt simple mechanical linkage mode to realize the VAV control of vent cabinet, CN202984252U proposes a kind of vent cabinet linkage valve regulating system, when vent cabinet cabinet door moves up and down, regulated the aperture of vent cabinet linkage valve in proportion by sprocket wheel chain, gear drive; CN203448368U proposes a kind of mechanical type variable air rate automatic regulating system, when vent cabinet cabinet door opens or closes, is controlled opening of Ventilating valve in proportion by chain pitch wheel, elevator assembly pulley and fixed pulley group or is closed.
Though above two schemes adopts machine driving to instead of vent cabinet electric-control system, in the component working such as gear, chain process, noise is huge, is not suitable for the environment in laboratory.
Utility model content
For solving the technical problem that variable air rate regulation and control system is with high costs, fault rate is high, noise is large of prior art, the utility model provides a kind of cheap, failure rate is low, quiet stable mechanical variable air rate regulation and control system.
A kind of mechanical variable air rate regulation and control system, comprise cabinet, cabinet door, ventilating opening, two valves, cabinet door counterweight, valve counterweight and transmission system, described cabinet door is located at described cabinet side, described ventilating opening is located at described cabinet top, valve described in two is located at described ventilating opening place, and be connected with described cabinet, described cabinet door counterweight and described valve counterweight are all located in described cabinet, described transmission system comprises multiple rope and multiple pulley, multiple described pulley is located at described valve and described cabinet, multiple described rope abuts with multiple described pulley respectively, described cabinet door counterweight connects described valve and described cabinet door by described rope, described valve counterweight connects described valve by described rope.
In a kind of preferred embodiment of the mechanical variable air rate regulation and control system provided at the utility model, described rope comprises the first rope, the second rope, the 3rd rope and the 4th rope, described cabinet door counterweight connects valve and described cabinet door described in by described first rope, described cabinet door counterweight connects valve described in another and described cabinet door by described second rope, described valve counterweight connects valve described in by described 3rd rope, and described valve counterweight connects valve described in another by described 4th rope.
In a kind of preferred embodiment of the mechanical variable air rate regulation and control system provided at the utility model, described pulley comprises the first to the 15 pulley, multiple described pulley is located at described valve and described cabinet, and abuts with described first rope, described second rope, described 3rd rope and described 4th rope.
In a kind of preferred embodiment of the mechanical variable air rate regulation and control system provided at the utility model, described valve comprises two slide rails, and described valve both sides are located at respectively by slide rail described in two, and described valve is connected with described cabinet by described slide rail.
In a kind of preferred embodiment of the mechanical variable air rate regulation and control system provided at the utility model, the weight of described cabinet door counterweight equals the weight of described cabinet door, and the weight of described valve counterweight equals the weight of described valve.
Compared to prior art, the described mechanical variable air rate regulation and control system that the utility model provides has following beneficial effect:
One, described mechanical variable air rate regulation and control system reaches the requirement of air draft variable air rate by frame for movement, has greatly saved manufacturing cost.
Two, described mechanical variable air rate regulation and control system reaches the requirement of air draft variable air rate by frame for movement, shortens the control response time of system, and structure is simple, failure rate is low, long service life.
Three, described mechanical variable air rate regulation and control system is without the structure such as chain, gear, is reached the requirement of air draft variable air rate by the associating transmission of pulley and rope, and the course of work is steadily quiet, stable.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, wherein:
Fig. 1 is the top view of the mechanical variable air rate regulation and control system that the utility model provides;
Fig. 2 is the front view of the mechanical variable air rate regulation and control system that the utility model provides.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.
Please refer to Fig. 1 and Fig. 2, wherein Fig. 1 is the top view of the mechanical variable air rate regulation and control system that the utility model provides, and Fig. 2 is the front view of the mechanical variable air rate regulation and control system that the utility model provides.
Described mechanical variable air rate regulation and control system 1 comprises cabinet 11, cabinet door 12, ventilating opening 13, two valve 14, cabinet door counterweight 15, valve counterweight 16 and transmission system 17.
Described cabinet door 12 is located at described cabinet 11 side, and described cabinet door 12 does open and close movement at vertical direction.Described ventilating opening 13 is located at described cabinet 11 top, and valve 14 described in two is located at described ventilating opening 13 place, and is connected with described cabinet 11.Described cabinet door counterweight 15 and described valve counterweight 16 are located in the described cabinet 11 of described cabinet door 12 both sides respectively, and all can move at vertical direction.Described cabinet door counterweight 15 connects described valve 14 and described cabinet door 12 by described transmission system 17, and described valve counterweight 16 connects described valve 14 by described transmission system 17.
Described valve 14 comprises two slide rails 141, and described valve 14 both sides are located at respectively by slide rail 141 described in two, and described valve 14 is connected with described cabinet 11 by described slide rail 141, and described valve 14 moves along described slide rail 141.
Described transmission system 17 comprises first to fourth rope, and label is respectively the 21 to 24, the first to the 15 pulley, and label is respectively 31 to 45.
Described cabinet 11 top one lateral edges is located at by described first pulley 31, side, described cabinet 11 top is located at by described second pulley 32 and described 3rd pulley 33, described 4th pulley 34 is located at described cabinet 11 top near valve described in one 14 place, valve 14 described in one is located at by described 5th pulley 35 and described 6th pulley 36, the top of valve 14 described in described cabinet 11 top one is located at by described 7th pulley 37, valve 14 side described in one is located at by described 8th pulley 38, the same side of valve 14 described in another is located at by described 9th pulley 39, the top of described cabinet 11 top valve 14 described in another is located at by described tenth pulley 40, valve 14 described in another is located at by described 11 pulley 41 and described 12 pulley 42, described 13 pulley 43 and described 14 pulley 44 are located at described cabinet 11 top near valve described in another 14 place, opposite side edge, described cabinet 11 top is located at by described 15 pulley 45.
Described first rope 21, one end is connected with described cabinet door counterweight 15, and the other end walks around described first pulley 31, described second pulley 32, described 5th pulley 35, described 4th pulley 34 and described 6th pulley 36 successively, and is finally connected with described cabinet door 12.
Described second rope 22, one end is connected with described cabinet door counterweight 15, the other end walks around described first pulley 31, second pulley 32, the 3rd pulley the 33, the 14 pulley the 44, the 12 pulley the 42, the 13 pulley the 43 and the 11 pulley 41 successively, and is finally connected with described cabinet door 12.
Described 3rd rope 23, one end is connected with described valve counterweight 16, and the other end walks around described 15 pulley 45, described 9th pulley 39 and described tenth pulley 40 successively, and is finally connected with valve described in one 14.
Described 4th rope 24, one end is connected with described valve counterweight 16, and the other end walks around described 15 pulley 45, described 8th pulley 38 and described 7th pulley 37 successively, and is finally connected with valve described in another 14.
During concrete enforcement, when the described cabinet door 12 of promotion up moves, when opening described cabinet door 12, because thrust has broken the balance between described cabinet door 12 and described cabinet door counterweight 15, described cabinet door counterweight 15 moves down.
Described cabinet door counterweight 15 drives described first rope 21 to move towards described cabinet door counterweight 15, described first rope 21 then drive described 5th pulley 35 and described 6th pulley 36 close to described 4th pulley 34, thus valve 14 described in is moved to described cabinet door counterweight 15 side.
Described cabinet door counterweight 15 also drives described second rope 22 to move towards described cabinet door counterweight 15, described second rope 22 then drive described 11 pulley 41 and described 12 pulley 42 close to described 13 pulley 43, thus valve 14 described in another is moved to described valve counterweight 16 side.
Under the acting in conjunction of above-mentioned each parts, described mechanical variable air rate regulation and control system 1 achieves while opening described cabinet door 12, opens the object of large described valve 14 in proportion.
In like manner, when the described cabinet door 12 of promotion moves down, when closing described cabinet door 12, described cabinet door counterweight 15 up moves, thus drives valve 14 described in two to move to the same side, mutually draws close, while the described cabinet door 12 of closedown, turns down described valve 14 in proportion.
The change of described valve 14 aperture can make pressure reduction in ventilation shaft change, and by pressure sensor and change rotation speed of fan, thus realizes the GB numerical value 0.4-0.6m/s that vent cabinet face wind speed reaches stable.
In addition, when described cabinet door 12 is closed, when vent cabinet quits work, described valve counterweight 16 moves down under gravity.
Described valve counterweight 16 drives described 3rd rope 23 and described 4th rope 24 to move towards described valve counterweight 16, and described 3rd rope 23 and described 4th rope 24 drive valve 14 the same side described in two to move respectively, mutually draw close to closedown.
Preferably, the weight of described cabinet door counterweight 15 equals the weight of described cabinet door 12, and the weight of described valve counterweight 16 equals the weight of described valve 14.The weight of described cabinet door counterweight 15 equals the weight of described cabinet door 12, makes the operation opening and closing described cabinet door 12 only need to overcome the frictional force between each parts of described transmission system 17, therefore opens and closes described cabinet door 12 very laborsaving.The weight of described valve counterweight 16 equals the weight of described valve 14, makes described valve counterweight 16 can not affect the normal operation of described mechanical variable air rate regulation and control system 1, and can automatically close when vent cabinet does not use.
Compared to prior art, the described mechanical variable air rate regulation and control system 1 that the utility model provides has following beneficial effect:
One, described mechanical variable air rate regulation and control system 1 reaches the requirement of air draft variable air rate by frame for movement, has greatly saved manufacturing cost.
Two, described mechanical variable air rate regulation and control system 1 reaches the requirement of air draft variable air rate by frame for movement, shortens the control response time of system, and structure is simple, failure rate is low, long service life.
Three, described mechanical variable air rate regulation and control system 1 is without the structure such as chain, gear, is reached the requirement of air draft variable air rate by the associating transmission of pulley and rope, and the course of work is steadily quiet, stable.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model description to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included within scope of patent protection of the present utility model.
Claims (5)
1. a mechanical variable air rate regulation and control system, it is characterized in that: comprise cabinet, cabinet door, ventilating opening, two valves, cabinet door counterweight, valve counterweight and transmission system, described cabinet door is located at described cabinet side, described ventilating opening is located at described cabinet top, valve described in two is located at described ventilating opening place, and be connected with described cabinet, described cabinet door counterweight and described valve counterweight are all located in described cabinet, described transmission system comprises multiple rope and multiple pulley, multiple described pulley is located at described valve and described cabinet, multiple described rope abuts with multiple described pulley respectively, described cabinet door counterweight connects described valve and described cabinet door by described rope, described valve counterweight connects described valve by described rope.
2. mechanical variable air rate regulation and control system according to claim 1, it is characterized in that: described rope comprises the first rope, the second rope, the 3rd rope and the 4th rope, described cabinet door counterweight connects valve and described cabinet door described in by described first rope, described cabinet door counterweight connects valve described in another and described cabinet door by described second rope, described valve counterweight connects valve described in by described 3rd rope, and described valve counterweight connects valve described in another by described 4th rope.
3. mechanical variable air rate regulation and control system according to claim 2, it is characterized in that: described pulley comprises the first to the 15 pulley, multiple described pulley is located at described valve and described cabinet, and abuts with described first rope, described second rope, described 3rd rope and described 4th rope.
4. mechanical variable air rate regulation and control system according to claim 1, is characterized in that: described valve comprises two slide rails, and described valve both sides are located at respectively by slide rail described in two, and described valve is connected with described cabinet by described slide rail.
5. mechanical variable air rate regulation and control system according to claim 1, is characterized in that: the weight of described cabinet door counterweight equals the weight of described cabinet door, and the weight of described valve counterweight equals the weight of described valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520426231.9U CN204842422U (en) | 2015-06-19 | 2015-06-19 | Novel mechanical type becomes air regulation control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520426231.9U CN204842422U (en) | 2015-06-19 | 2015-06-19 | Novel mechanical type becomes air regulation control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204842422U true CN204842422U (en) | 2015-12-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520426231.9U Expired - Fee Related CN204842422U (en) | 2015-06-19 | 2015-06-19 | Novel mechanical type becomes air regulation control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204842422U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104984971A (en) * | 2015-06-19 | 2015-10-21 | 湖南朗圣实验室技术发展有限公司 | Novel mechanical variable air rate adjusting control system |
| CN113751452A (en) * | 2021-08-20 | 2021-12-07 | 哈工大泰州创新科技研究院有限公司 | Laboratory fume chamber |
-
2015
- 2015-06-19 CN CN201520426231.9U patent/CN204842422U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104984971A (en) * | 2015-06-19 | 2015-10-21 | 湖南朗圣实验室技术发展有限公司 | Novel mechanical variable air rate adjusting control system |
| CN113751452A (en) * | 2021-08-20 | 2021-12-07 | 哈工大泰州创新科技研究院有限公司 | Laboratory fume chamber |
| CN113751452B (en) * | 2021-08-20 | 2023-04-07 | 哈工大泰州创新科技研究院有限公司 | Laboratory fume chamber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 410000 Hunan province Changsha labor Road No. 208 Metro North 24 story landmark Valin Patentee after: Hunan long st laboratory technology Limited by Share Ltd Address before: 410000 Hunan province Changsha labor Road No. 208 Metro North 24 story landmark Valin Patentee before: Hunan Loncsen Experimental Technology Development Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20170619 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |