CN211624318U

CN211624318U - Pressure relief air valve for air conditioning unit

Info

Publication number: CN211624318U
Application number: CN202020042704.6U
Authority: CN
Inventors: 陈培华; 黄勇; 王代群
Original assignee: Puyang Guocheng Air Purification Technology Co ltd
Current assignee: Puyang Guocheng Air Purification Technology Co ltd
Priority date: 2020-01-09
Filing date: 2020-01-09
Publication date: 2020-10-02
Anticipated expiration: 2030-01-09

Abstract

The utility model provides a pressure release blast gate for air conditioning unit, including rectangle blast gate frame, the side cross-section that laminating blast gate frame inner wall set up is the blast gate inside casing of lightning form, with two fly leafs of upper and lower part difference lock on the blast gate inside casing, the dwang of being connected is rotated at fixed and both ends and blast gate frame in middle part and fly leaf top, set up at the dwang both ends and rather than fixed connection's lever, install the balancing weight on the lever and set up respectively on fly leaf lower extreme and blast gate inside casing with the magnet strip of the corresponding position department of fly leaf lower extreme. The utility model provides an air conditioning unit pressure release blast gate leakproofness not good, the rate of leaking out is higher and the pressure release blast gate opens the difficult problem of adjusting of closing the threshold value.

Description

Pressure relief air valve for air conditioning unit

Technical Field

The utility model relates to a modular air conditioning unit accessory field, concretely relates to pressure release blast gate for air conditioning unit.

Background

The air conditioner is wholly equivalent to one section dryer, wherein install various functional parts, fan air outlet department adopts positive negative pressure baffle to fall into two parts to whole air conditioner, the side of intaking is the negative pressure section, the side of going out is the malleation section, the pressure of positive negative pressure baffle is the place that whole platform equipment pressure is the highest, the pressure release blast gate is installed and is prevented that baffle department pressure from being too high on positive negative pressure baffle, because the filter screen can become dirty in the long-time operation, the resistance increases, make the internal pressure of box increase including other factors such as improper use, when baffle department pressure is higher than the design pressure value, the automatic pressure release of opening of pressure release blast gate, avoid the too high box that causes the box damage or even explode the case, can self-closing after pressure releases to within the safe value, equipment continues the operation according to normal operating.

In order to improve the high efficiency and energy conservation of air conditioning unit equipment, the sealing performance of the pressure relief air valve is required to be good so as to prevent air in the positive pressure section from flowing back through the pressure relief air valve, and the air leakage rate when the pressure relief air valve is normally closed is required to be higher. Pressure relief air valves with similar functions used by a few manufacturers mostly adopt a multi-blade rotary structure, air leakage points are gaps among blades and gaps between two ends of the blades and an air valve frame, and structural parts cannot be tightly combined due to the fact that the blades need to rotate. Therefore, the two air leakage points are difficult to achieve high tightness. Even most of manufacturers do not have the pressure relief air valve mechanism, so that the air conditioning unit has great possibility of being damaged and great potential safety hazard.

In addition, the stress value that the pressure release blast gate was opened and was closed has a scope, if this scope undersize or only a certain point, if when the air conditioning box operation median septum differential pressure value was a bit bigger than pressure release blast gate design value, the pressure release blast gate can the high frequency open and close incessantly, causes the damage and then the failure to the blast gate part, influences air conditioning unit normal safe handling.

Disclosure of Invention

In order to solve the problem that air conditioning unit pressure release blast gate leakproofness is not good among the prior art, the rate of leaking out is higher and the pressure release blast gate is opened and is closed the difficult regulation of threshold value, the utility model provides a pressure release blast gate for air conditioning unit that the leakproofness is good, threshold value is adjusted conveniently.

The utility model provides a pressure release blast gate for air conditioning unit, including rectangle blast gate frame, the side cross-section that laminating blast gate frame inner wall set up is the blast gate inside casing of lightning form, with two fly leafs of blast gate inside casing upper and lower part lock respectively, the dwang that middle part and fly leaf top are fixed and both ends and blast gate frame rotate to be connected, set up at the dwang both ends and rather than fixed connection's lever, install the balancing weight on the lever and set up the magnet strip with the corresponding position department of fly leaf lower extreme on fly leaf lower extreme and blast gate inside casing respectively.

Furthermore, the air valve outer frame is formed by assembling four metal plates with four bent sides, and the metal plates are connected through bolts.

Further, the air valve inner frame is formed by splicing an upper baffle plate, an upper side plate, a Z-shaped beam, a lower side plate and a lower baffle plate from top to bottom in sequence, wherein the upper baffle plate, the upper side plate, the lower side plate and the lower baffle plate are Z-shaped and form two convex rectangular openings at the upper part and the lower part of the air valve inner frame, and the air valve inner frame and the air valve outer frame are connected through a stainless steel non-porous riveting process.

Further, the movable plate comprises an outer plate with four bent sides and an inner plate with four bent sides twice and embedded on the outer plate, a rectangular buckling groove matched with the rectangular opening is formed between the inner plate and the outer plate, and a polyurethane foaming strip is arranged in the buckling groove.

Furthermore, the middle part of the rotating rod is square, the two ends of the rotating rod are round, the middle part of the rotating rod is fixedly connected with the top of the movable plate, and the two ends of the rotating rod are sleeved with sealing bearings and then are rotatably connected with the outer frame of the air valve.

Furthermore, the lever is perpendicular to the rotating rod in space, waist-shaped holes are formed in two ends of the lever, and two ends of the rotating rod are inserted into the waist-shaped holes and fixedly connected with the waist-shaped holes.

Furthermore, the levers are divided into two groups and each group of levers is connected with a connecting rod, and two ends of each connecting rod are hinged to the corresponding lever.

Furthermore, a plurality of counterweight adjusting holes used for installing counterweight blocks are formed in the lever.

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

the utility model provides an air conditioning unit is with pressure release blast gate, through the setting of two upper and lower fly leaf and blast gate inner frame, the pressure release wind gap of pressure release blast gate divides two from top to bottom, and this kind of setting up of piecemeal not only increases structural strength and makes pressure release blast gate avoid the pressurized deformation, increases the air volume of pressure release through setting up two wind gaps again;

through the polyurethane foaming strips arranged in the buckling grooves, the polyurethane foaming strips have the characteristics of integration, no seam, high resilience, high sealing property and high bonding property and are not easy to fall off, so that the buckling grooves have good sealing property when being contacted with the rectangular opening, and have certain functions of shock absorption and noise reduction when being opened and closed for multiple times, and the damage of the movable plate and the air valve inner frame caused by collision is reduced;

through the setting of magnetic stripe and dwang, lever and balancing weight, the threshold value of pressure release blast gate pressure release has been stipulated, and the suction of magnet strip and the moment of balancing weight have decided the high value of pressure release blast gate threshold value scope promptly, and the moment of balancing weight has decided the low value of pressure release blast gate threshold value scope, and the threshold value scope can be adjusted through the magnet strip of equidimension not. When positive negative pressure baffle department pressure differential value is greater than the predetermined high value of pressure release blast gate, the fly leaf is opened, magnet interact this moment, when the pressure release is to the low value, the fly leaf just can also make it close through the effort of balancing weight, the size of adjustment magnet strip and the size of balancing weight respectively or the mounted position on the lever come to carry out convenient effectual regulation to the high value and the low value of pressure release threshold value, avoid threshold value scope undersize or only certain point, make opening and closing that the pressure release blast gate can the high frequency incessant, cause the damage and then failure to the pressure release blast gate part, influence the normal safe handling of air conditioning unit.

Drawings

Fig. 1 is the overall structure schematic diagram of the pressure relief air valve for the air conditioning unit of the present invention.

Fig. 2 is a schematic diagram of the overall structure of a pressure relief air valve for an air conditioning unit.

Fig. 3 is an internal structure schematic diagram of the pressure relief air valve for the air conditioning unit of the present invention.

Fig. 4 is an exploded view of the air valve inner frame structure of the pressure relief air valve for the air conditioning unit of the present invention.

Fig. 5 is a schematic structural view of a movable plate of a pressure relief air valve for an air conditioning unit.

Fig. 6 is an exploded view of the movable plate and the polyurethane foam strip assembly structure of the pressure relief air valve for the air conditioning unit of the present invention.

The reference numbers are: the air valve comprises an air valve outer frame 1, an air valve inner frame 2, a movable plate 3, a rotating rod 4, a lever 5, a balancing weight 6, a magnet strip 7, an upper baffle 8, an upper baffle 9, a Z-shaped beam 10, a lower baffle 11, a lower baffle 12, a rectangular opening 13, an outer plate 14, an inner plate 15, a fastening groove 16, a polyurethane foam strip 17, a connecting rod 18 and a counterweight adjusting hole 19.

Detailed Description

The invention will be further explained with reference to the following figures and specific examples:

as shown in fig. 1 to 6, a pressure relief air valve for an air conditioning unit comprises a rectangular air valve outer frame 1, an air valve inner frame 2 with a lightning-shaped side cross section and arranged on the inner wall of the air valve outer frame 1, two movable plates 3 respectively buckled with the upper part and the lower part of the air valve inner frame 2, a rotating rod 4 with the middle part fixed to the top of the movable plate 3 and the two ends rotatably connected with the air valve outer frame 1, a lever 5 fixedly connected with the rotating rod 4 and arranged at the two ends of the rotating rod 4, a balancing weight 6 arranged on the lever 5, and magnet strips 7 respectively arranged at the lower end of the movable plate 3 and the corresponding position of the lower end of the movable plate 3 on.

Through magnetic stripe and dwang 4, lever 5 and balancing weight 6's setting, the threshold value of pressure release blast gate pressure release has been stipulated, the suction of magnet strip 7 and the moment that balancing weight 6 dead weight produced have decided the high value of pressure release blast gate threshold value scope promptly, the moment that balancing weight 6 dead weight produced has decided the low value of pressure release blast gate threshold value scope, the threshold value scope can be adjusted through not magnet strip 7 of equidimension. When positive negative pressure baffle department pressure differential value is greater than the predetermined high value of pressure release blast gate, fly leaf 3 is opened, magnet strip 7 does not have an effect each other this moment, when the pressure release is to the low value, fly leaf 3 could also only make it close through the effort of balancing weight 6, adjust the size of magnet strip 7 and the size of balancing weight 6 respectively or the mounted position on lever 5 come to make things convenient for effectual regulation to the high value and the low value of pressure release threshold value, avoid threshold value scope undersize or only be some point, make opening and closing that the pressure release blast gate can the high frequency be incessant, cause the damage and then malfunctioning to the pressure release blast gate part, influence the normal safe handling of air conditioning unit.

Specifically, the air valve outer frame 1 is formed by splicing four metal plates with four bent sides, and the metal plates are connected through bolts. Air valve inside casing 2 is formed by last baffle 8, last curb plate 9, "Z" roof beam 10, lower curb plate 11 and lower baffle 12 concatenation from top to bottom in proper order, go up baffle 8, last curb plate 9, lower curb plate 11 and baffle 12 down and be "Z" font and form two convex rectangle openings 13 on air valve inside casing 2 upper and lower part, and air valve inside casing 2 and air valve frame 1 pass through stainless steel sclausura riveting technology and connect. Through the setting of two upper and lower fly leaf 3 and blast gate inside casing 2, the pressure release wind gap of pressure release blast gate divides two from top to bottom, and this kind of setting of dividing two from top to bottom both increases structural strength and makes the pressure release blast gate avoid the pressurized deformation, increases the air volume of pressure release through setting up two wind gaps again.

The movable plate 3 comprises an outer plate 14 with four bent sides and an inner plate 15 with four bent sides twice and embedded on the outer plate 14, a rectangular buckling groove 16 matched with the rectangular opening 13 is formed between the inner plate 15 and the outer plate 14, and a polyurethane foaming strip 17 is arranged in the buckling groove 16. Through setting up the polyurethane foaming strip 17 in lock groove 16, polyurethane foaming strip 17 has integrative no seam, high resilience, high leakproofness, the difficult characteristics that drop of high bonding performance, and the leakproofness is good and have certain shock attenuation and the function of making an uproar of falling when opening and shutting the contact many times when making lock groove 16 and the contact of rectangle opening 13, reduces the damage that fly leaf 3 and blast gate inside casing 2 produced because of the striking.

The middle part of the rotating rod 4 is square, the two ends of the rotating rod are round, the middle part of the rotating rod is fixedly connected with the top of the movable plate 3, and the two ends of the rotating rod are sleeved with sealing bearings and then are rotatably connected with the outer frame 1 of the air valve; the lever 5 is spatially perpendicular to the rotating rod 4, waist-shaped holes are formed in two ends of the lever 5, and two ends of the rotating rod 4 are inserted into and fixedly connected with the waist-shaped holes; the upper and lower groups of levers 5 are provided, a connecting rod 18 is connected between each group of levers 5, and two ends of the connecting rod 18 are hinged with the levers 5; and the lever 5 is provided with a plurality of counterweight adjusting holes 19 for installing the counterweight blocks 6.

Four counter weights of every set of pressure release blast gate installation, act on two fly leafs 3 with the moment transmission through lever 5 and dwang 4 respectively, link to each other upper and lower two sets of levers 5 through 8 connecting rods in addition, make two sets of levers 5 have the interlocking function, make the synchronism of two fly leafs 3 about the messenger better, the atress degree of consistency is higher, make the rectangle opening 13 on polyurethane foaming strip 17 and the blast gate inside casing 2 when fly leaf 3 closes comprehensively, improve the leakproofness.

In the air conditioning unit, the blast gate frame 1 fixed mounting of pressure release blast gate is on positive negative pressure baffle, and when pressure release blast gate carried out work, the pressure value of positive negative pressure baffle department was below the threshold value range height value that magnet strip 7 and balancing weight 6 decided, fly leaf 3 closed and sealed under the effect of 6 dead weights of balancing weight and the adsorption effect between the magnet strip through dwang 4 and lever 5. Buckled groove 16 on the fly leaf 3 and rectangle opening 13 close coupling and between it have guaranteed holistic high leakproofness through the effect of polyurethane foaming strip 17, when the pressure value of positive negative pressure baffle department is higher than the high value of safe pressure threshold value scope, wind pressure acts on the fly leaf, overcome the appeal of magnet strip 7 and the dead weight of balancing weight 6 and open fly leaf 3, the pressure release work is accomplished towards the backward flow of negative pressure end to malleation end air, after the pressure release carried out the certain time, when the pressure value of positive negative pressure baffle department falls under the threshold value low value scope, the fly leaf receives the moment effect that balancing weight 6 dead weight produced and closes, accomplish the pressure release work.

The above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the present invention, so that equivalent changes or modifications made by the structure, features and principles of the present invention should be included in the claims of the present invention.

Claims

1. The utility model provides a pressure release blast gate for air conditioning unit, a serial communication port, including rectangle blast gate frame (1), the side cross-section that laminating blast gate frame (1) inner wall set up is the blast gate inside casing (2) of lightning form, with two fly leaf (3) of blast gate inside casing (2) upper and lower part difference lock, the dwang (4) that middle part and fly leaf (3) top are fixed and both ends and blast gate frame (1) rotation are connected, set up at dwang (4) both ends and rather than fixed connection's lever (5), install balancing weight (6) on lever (5) and set up respectively on fly leaf (3) lower extreme and blast gate inside casing (2) with magnet strip (7) of fly leaf (3) lower extreme corresponding position department.

2. The pressure relief air valve for the air conditioning unit according to claim 1, wherein the air valve outer frame (1) is formed by assembling four metal plates with four bent sides, and the metal plates are connected through bolts.

3. The pressure relief air valve for the air conditioning unit according to claim 1, wherein the air valve inner frame (2) is formed by splicing an upper baffle (8), an upper side plate (9), a Z-shaped beam (10), a lower side plate (11) and a lower baffle (12) from top to bottom in sequence, the upper baffle (8), the upper side plate (9), the lower side plate (11) and the lower baffle (12) are Z-shaped, two convex rectangular openings (13) are formed in the upper part and the lower part of the air valve inner frame (2), and the air valve inner frame (2) and the air valve outer frame (1) are connected through a stainless steel non-porous riveting process.

4. The pressure relief air valve for the air conditioning unit according to claim 3, wherein the movable plate (3) comprises an outer plate (14) with four bent sides and an inner plate (15) with four bent sides twice and embedded on the outer plate (14), a rectangular buckling groove (16) matched with the rectangular opening (13) is formed between the bent sides of the inner plate (15) and the outer plate (14), and a polyurethane foaming strip (17) is arranged in the buckling groove (16).

5. The air conditioning unit pressure relief air valve according to claim 1, wherein the rotating rod (4) is square in the middle, circular at both ends, and fixedly connected to the top of the movable plate (3) at the middle, and rotatably connected to the air valve housing (1) after being sleeved with the sealing bearings at both ends.

6. The pressure relief air valve for the air conditioning unit according to claim 1, wherein the lever (5) is spatially perpendicular to the rotating rod (4), the two ends of the lever (5) are provided with waist-shaped holes, and the two ends of the rotating rod (4) are inserted into the waist-shaped holes and fixedly connected with the waist-shaped holes.

7. The air conditioning unit pressure relief air valve according to claim 1, wherein the number of the levers (5) is two, and a connecting rod (18) is connected between each group of the levers (5), and both ends of the connecting rod (18) are hinged to the levers (5).

8. The pressure relief air valve for the air conditioning unit according to claim 1, wherein the lever (5) is provided with a plurality of counterweight adjusting holes (19) for installing the counterweight block (6).