CN210422332U

CN210422332U - Continuous pressure relief air door

Info

Publication number: CN210422332U
Application number: CN201920580222.3U
Authority: CN
Inventors: 庞俊杰
Original assignee: Suzhou Wedem Equipment Technology Co Ltd
Current assignee: Suzhou Wedem Equipment Technology Co Ltd
Priority date: 2019-04-26
Filing date: 2019-04-26
Publication date: 2020-04-28
Anticipated expiration: 2029-04-26

Abstract

The utility model discloses a continuous pressure relief air door, which belongs to the field of pressure relief air doors and comprises a door frame, wherein one end of the door frame is provided with a filter screen, a plurality of fixing screws are connected between the filter screen and the door frame, the other end of the door frame is fixedly connected with a protection net, an air door is arranged in the door frame, rotating shafts are respectively connected between two ends of the air door and the inner wall of the door frame, one end of the air door close to the door frame is fixedly connected with a counterweight hammer, one end of the air door close to the protection net is fixedly connected with a pair of fixed plates, a sliding rod is fixedly connected between the pair of fixed plates, a sliding block is connected on the sliding rod in a sliding manner, a locking screw matched with the fixed plates is connected on the sliding block, two ends of the sliding block are fixedly connected with an extension rod, a, the indoor and outdoor pressure difference threshold value required by pressure relief is convenient to adjust.

Description

Continuous pressure relief air door

Technical Field

The utility model relates to a pressure release air door field, more specifically say, relate to a continuous type pressure release air door.

Background

In recent years, the electronic industry, particularly the integrated circuit industry, has been rapidly developing. In order to ensure the quality of electronic products, the production of the products is required to be carried out in a dust-free environment. Thus, clean rooms are commonly established in the electronics industry. The air in the clean room is purified to remove dust and other impurities, thereby achieving higher cleaning standard.

In order to prevent the foreign particles in the outside air from entering the clean room by diffusion and to prevent the air in the clean room from being contaminated, a positive pressure must be maintained in the clean room. Thus, it is common to use a pressure relief damper between the clean room and the outside to maintain a slight positive pressure in the clean room. Under positive pressure, air flows to the outside from the clean room through the pressure relief air door, so that the clean room keeps the positive pressure and simultaneously is not too high in pressure.

However, the existing pressure relief air door can only perform pressure relief, but is not easy to adjust the threshold value of the indoor and outdoor pressure difference required by pressure relief, and is not easy to adjust the pressure difference maintained indoors and outdoors according to the change of production requirements.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

To the problem that exists among the prior art, the utility model aims to provide a continuous type pressure release air door, it can realize easily making indoor outer pressure balance, conveniently adjusts the required indoor outer pressure difference threshold of pressure release.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

A continuous pressure relief air door comprises a door frame, wherein a filter screen is arranged at one end of the door frame, a plurality of fixing screws are connected between the filter screen and the door frame, a protection net is fixedly connected at the other end of the door frame, an air door is arranged in the door frame, rotating shafts are connected between two ends of the air door and the inner wall of the door frame, a counterweight hammer is fixedly connected at one end of the air door close to the door frame, a pair of fixing plates is fixedly connected at one end of the air door close to the protection net, a sliding rod is fixedly connected between the fixing plates, a sliding block is connected on the sliding rod in a sliding manner, locking screws matched with the fixing plates are connected on the sliding block, extension rods are fixedly connected at two ends of the sliding block, a plurality of balancing weights are sleeved on the extension rods, locking nuts matched with, the indoor and outdoor pressure difference threshold value required by pressure relief is convenient to adjust.

Furthermore, the surface of air door be carved with slide bar assorted scale, convenient accurate regulation adjusting sliding block is in the position on the slide bar.

Further, a pair of limiting plate of fixedly connected with on the inner wall of door frame, it is a pair of the limiting plate respectively with the upper and lower both ends phase-match of air door, easily carry on spacingly to the air door, make the air door turned angle difficult too big.

Furthermore, the damping layer is paved on the sliding rod, so that the sliding block is not easy to fall naturally under the action of gravity.

Furthermore, the balancing weight has multiple fixed specification, and is multiple all open chisel on the balancing weight have with extension rod assorted jack, the counter weight of convenient accurate regulation sliding block.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

(1) this scheme easily makes indoor outer pressure balance, conveniently adjusts the required indoor outer pressure difference threshold of pressure release.

(2) The surface of air door is carved with the scale with slide bar assorted, and the convenient accurate position of adjusting the sliding block on the slide bar.

(3) A pair of limiting plates are fixedly connected to the inner wall of the door frame, and the pair of limiting plates are respectively matched with the upper end and the lower end of the air door, so that the air door is easily limited, and the rotating angle of the air door is not too large easily.

(4) The sliding rod is paved with a damping layer, so that the sliding block is not easy to fall naturally under the action of gravity.

(5) The balancing weight has multiple fixed specification, all excavate on the multiple balancing weight with extension rod assorted jack, the counter weight of convenient accurate regulation sliding block.

Drawings

Fig. 1 is a perspective view of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a schematic view of the structure of the deprotection net of the present invention;

fig. 4 is a sectional view of the present invention.

The reference numbers in the figures illustrate:

the device comprises a door frame 1, a filter screen 2, a fixing screw 3, a protection screen 4, an air door 5, a rotating shaft 6, a counterweight hammer 7, a fixing plate 8, a sliding rod 9, a sliding block 10, a locking screw 11, an extension rod 12, a balancing weight 13 and a locking nut 14.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

please refer to fig. 1 and 4, a continuous type pressure relief air door, including door frame 1, the one end of door frame 1 is equipped with filter screen 2, be connected with a plurality of set screws 3 between filter screen 2 and the door frame 1, the other end fixedly connected with guard net 4 of door frame 1, be equipped with air door 5 in the door frame 1, all be connected with axis of rotation 6 between the both ends of air door 5 and the inner wall of door frame 1, a pair of limiting plate of fixedly connected with on the inner wall of door frame 1, a pair of limiting plate respectively with the upper and lower both ends phase-match of air door 5, easily carry on spacingly to air door 5, make air door 5 turned angle be difficult for too big, one end fixedly connected with counter weight 7 that air door 5 is close.

Referring to fig. 2 and 3, one end of the air door 5 close to the protection net 4 is fixedly connected with a pair of fixing plates 8, a sliding rod 9 is fixedly connected between the pair of fixing plates 8, a sliding block 10 is slidably connected on the sliding rod 9, a locking screw 11 matched with the fixing plate 8 is connected on the sliding block 10, a graduated scale matched with the sliding rod 9 is carved on the surface of the air door 5, the position of the sliding block 10 on the sliding rod 9 is conveniently and accurately adjusted, extending rods 12 are fixedly connected at two ends of the sliding block 10, the extending rods 12 are sleeved with a plurality of balancing weights 13, locking nuts 14 matched with the balancing weights 13 are in threaded connection on the extending rods 12, a damping layer is laid on the sliding rod 9, the sliding block 10 is not easy to naturally fall down due to the action of gravity, the balancing weights 13 have various fixed specifications, jacks matched with the extending rods 12 are all chiseled on various balancing weights.

This device is installed on the division wall, when indoor ambient pressure is higher, indoor outer formation pressure differential, when indoor outer pressure differential is great, air door 5 can be pushed open, make indoor pressure release, after indoor outer pressure balance, effect through counter weight hammer 7 makes air door 5 reset, make the device closed, the adjustable sliding block 10 of technical staff's position on slide bar 9, make the moment change of sliding block 10 to air door 5 effect, thereby it is pushed open required indoor outer pressure differential to change air door 5, the user still can install a plurality of balancing weights 13 additional on the extension rod 12 at air door 5 both ends with this counter weight that changes sliding block 10, make sliding block 10 change to the effort of air door 5, with this change air door 5 by pushing open required indoor outer pressure differential.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims

1. The utility model provides a continuous type pressure release air door, includes door frame (1), its characterized in that: the door frame is characterized in that a filter screen (2) is arranged at one end of the door frame (1), a plurality of fixing screws (3) are connected between the filter screen (2) and the door frame (1), a protection net (4) is fixedly connected to the other end of the door frame (1), an air door (5) is arranged in the door frame (1), rotating shafts (6) are connected between the two ends of the air door (5) and the inner wall of the door frame (1), a counterweight hammer (7) is fixedly connected to one end, close to the door frame (1), of the air door (5), a pair of fixing plates (8) is fixedly connected to one end, close to the protection net (4), of the air door (5), a sliding rod (9) is fixedly connected between the fixing plates (8), a sliding block (10) is connected to the sliding block (9), locking screws (11) matched with the fixing plates (8) are connected to the sliding block (10), and, a plurality of balancing weights (13) are sleeved on the extension rod (12), and locking nuts (14) matched with the balancing weights (13) are connected to the extension rod (12) in a threaded mode.

2. A continuous pressure bleed damper as in claim 1, wherein: and a graduated scale matched with the slide rod (9) is carved on the surface of the air door (5).

3. A continuous pressure bleed damper as in claim 1, wherein: the inner wall of the door frame (1) is fixedly connected with a pair of limiting plates, and the pair of limiting plates are respectively matched with the upper end and the lower end of the air door (5).

4. A continuous pressure bleed damper as in claim 1, wherein: and a damping layer is paved on the slide bar (9).

5. A continuous pressure bleed damper as in claim 1, wherein: the balancing weight (13) has multiple fixed specifications, and multiple jacks matched with the extension rod (12) are formed in the balancing weight (13).