CN219827213U - Civil air defense fan - Google Patents
Civil air defense fan Download PDFInfo
- Publication number
- CN219827213U CN219827213U CN202321337259.6U CN202321337259U CN219827213U CN 219827213 U CN219827213 U CN 219827213U CN 202321337259 U CN202321337259 U CN 202321337259U CN 219827213 U CN219827213 U CN 219827213U
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- fan
- air
- air guide
- valve
- pin shaft
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- 230000007123 defense Effects 0.000 title claims abstract description 25
- 210000001503 joint Anatomy 0.000 claims abstract description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 2
- 230000014759 maintenance of location Effects 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The utility model discloses a civil air defense fan, which comprises a fan body and an air valve; the air valve is in butt joint with the inner side of the fan body; the damper includes: a valve cylinder; a retaining post fixedly provided in a central region of the valve cylinder; the adjusting unit is arranged in the valve cylinder and comprises a plurality of fan-shaped air guide grids which are uniformly distributed in the circumferential direction; an inner pin shaft is formed at the inner end of each air guide grille in the radial direction, an outer pin shaft is formed at the outer end of each air guide grille in the radial direction, the inner pin shaft extends into the retaining column, and the outer pin shaft penetrates through the wall of the valve cylinder; the adjusting ring is sleeved on the periphery of the valve cylinder, the outer pin shaft of each air guide grille is movably connected to the adjusting ring, and the air guide grille can be driven to twist through rotating the adjusting ring so as to adjust the air inlets among the air guide grilles.
Description
Technical Field
The utility model relates to the technical field of civil air defense engineering, in particular to a civil air defense fan.
Background
Fans are known for circulating air, for example, by mounting them on indoor walls, which keep the indoor air fresh by blowing outside air into the room (this fan is called a blower fan or positive pressure fan) or by exhausting air from the room to the outside (this fan is called a negative pressure fan).
A fan is generally installed on an indoor wall of the civil air defense engineering, and indoor air and outdoor air are exchanged through the fan to ensure that the indoor air is clean. Inside the air-protection fan (on the side of the wall inner wall) there is usually installed a damper for controlling the amount of air (or intake) into the room.
The air valve in the prior art generally comprises a cylinder body and an adjusting unit arranged in the cylinder body, wherein the adjusting unit is formed by arranging a plurality of strip-shaped air guide grids in a parallel mode, the air guide grids are configured to be capable of being twisted, the size of an air inlet between the air guide grids is adjusted by twisting the air guide grids, and then the air inlet direction and the air quantity are controlled.
The disadvantage of arranging the air guide grids in a parallel manner is that:
since the outer shape of the adjusting unit needs to be configured in a circular shape, the length of each air guide grill in the adjusting unit is not uniform, which increases not only the processing cost but also the installation cost.
Disclosure of Invention
Aiming at the technical problems in the prior art, the embodiment of the utility model provides a civil air defense fan.
In order to solve the technical problems, the technical scheme adopted by the embodiment of the utility model is as follows:
a civil air defense fan comprises a fan body and an air valve; the air valve is in butt joint with the inner side of the fan body;
the damper includes:
a valve cylinder;
a retaining post fixedly provided in a central region of the valve cylinder;
the adjusting unit is arranged in the valve cylinder and comprises a plurality of fan-shaped air guide grids which are uniformly distributed in the circumferential direction; an inner pin shaft is formed at the inner end of each air guide grille in the radial direction, an outer pin shaft is formed at the outer end of each air guide grille in the radial direction, the inner pin shaft extends into the retaining column, and the outer pin shaft penetrates through the wall of the valve cylinder;
the adjusting ring is sleeved on the periphery of the valve cylinder, the outer pin shaft of each air guide grille is movably connected to the adjusting ring, and the air guide grille can be driven to twist through rotating the adjusting ring so as to adjust the air inlets among the air guide grilles.
Preferably, a driving slat is fixed at the outer end of each outer pin shaft, and the driving slat is perpendicular to the outer pin shafts; the driving lath is provided with a long hole, and the long hole extends along the length direction of the driving lath; the circumferential positions of the adjusting rings corresponding to the outer pin shafts are respectively fixed with a radial outward guide rod, and the guide rods penetrate through the long holes of the corresponding driving laths.
Preferably, a plurality of guide wheels are circumferentially and uniformly distributed on the periphery of the valve cylinder, the guide wheels are provided with concave wheel surfaces, and the adjusting ring is synchronously sleeved on the plurality of guide wheels.
Preferably, a plurality of struts are circumferentially arranged on the retaining post, and outer ends of the plurality of struts are connected to an inner cylinder wall of the valve cylinder.
Preferably, the fan body comprises a fan cylinder, a fan and a motor; the fan is arranged in the fan cylinder body, the motor is used for driving the fan to rotate, and the fan is an axial flow fan.
Preferably, the valve cylinder of the air valve is in butt joint with the inner side of the fan cylinder body through a flange plate.
Preferably, a mounting table formed by longitudinal and transverse arrangement of the battens is arranged inside the fan cylinder body, and the motor is fixed on the mounting table.
Preferably, the air guide grill is formed of a metal plate or a hard plastic plate by punching and cutting.
Compared with the prior art, the civil air defense fan disclosed by the utility model has the beneficial effects that:
the air guide grids are formed into the adjusting units in a circumferential arrangement mode, so that all the air guide grids of the adjusting units can be designed into the same external dimensions, and batch processing and manufacturing of the air guide grids are facilitated.
An overview of various implementations or examples of the technology described in this disclosure is not a comprehensive disclosure of the full scope or all of the features of the technology disclosed.
Drawings
In the drawings, which are not necessarily drawn to scale, like numerals may describe similar components in different views. The same reference numerals with letter suffixes or different letter suffixes may represent different instances of similar components. The accompanying drawings illustrate various embodiments by way of example in general and not by way of limitation, and together with the description and claims serve to explain the inventive embodiments. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts. Such embodiments are illustrative and not intended to be exhaustive or exclusive of the present apparatus or method.
Fig. 1 is a schematic perspective view of a civil air defense fan according to an embodiment of the present utility model.
Fig. 2 is a front cross-sectional view of a civil air defense fan according to an embodiment of the present utility model.
Fig. 3 is a schematic perspective view of a ventilation valve of a civil air defense fan according to an embodiment of the present utility model.
Fig. 4 is a front side view of a fan valve of a civil air defense fan according to an embodiment of the present utility model.
Fig. 5 is a schematic perspective view of a blower body in a civil air defense blower according to an embodiment of the present utility model.
Fig. 6 is a schematic perspective view of another view angle of a blower body in a civil air defense blower according to an embodiment of the utility model.
Reference numerals:
10-a fan body; 11-a fan cylinder; 12-a fan; 13-an electric motor; 14-a mounting table; 20-an air valve; 21-a valve cartridge; 211-flange plates; 22-an adjusting unit; 221-an air guide grille; 222-an inner pin; 223-outer pin shaft; 224-drive the slats; 225-long holes; 226-air inlet; 30-holding the column; 31-a strut; 40-adjusting ring; 41-a guide bar; 50-guide wheels.
Detailed Description
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
In order to keep the following description of the embodiments of the present utility model clear and concise, the detailed description of known functions and known components thereof have been omitted.
The embodiment of the utility model discloses a civil air defense fan which is arranged on a civil air defense structure wall body and used for blowing outside air into a civil air defense room.
As shown in fig. 1 and 2, the air-defense fan includes: the fan body 10 passes through the structural wall body, and the air valve 20 is arranged on the inner side of the fan body 10.
As shown in fig. 5 and 6, the blower body 10 includes: fan cylinder 11, fan 12, motor 13 and control box. The fan cylinder 11 passes through the structural wall, criss-cross battens are welded at the area, close to the outer side, inside the fan cylinder 11, the battens are built into a mounting table 14, the motor 13 is fixed on the mounting table 14, the output shaft of the motor 13 faces the inner side, and the output shaft is coaxial with the axis of the fan cylinder 11. The fan 12 is an axial flow fan 12, the fan 12 is mounted on the output shaft of the motor 13, so that the fan 12 is closer to the inner side of the fan cylinder 11; the control box is mounted on the inner cylinder wall of the fan cylinder 11. The motor 13 drives the fan 12 so that outside air enters the air-defense room through the fan drum 11.
In some preferred embodiments, the outer and inner ends of the fan cylinder 11 each form a radially outwardly extending flange that is affixed to the outside and inside of the structural wall for locating the fan body 10.
As shown in fig. 1 to 4, an air valve 20 is installed at the inner side of the blower body 10, and the air valve 20 is mainly used to control the direction of air entering the air defense room and can be matched with the motor 13 to control the air volume. The damper 20 includes: a valve cylinder 21, a retaining post 30, an adjustment unit 22, and an adjustment ring 40.
The valve cylinder 21 is formed with a radially outwardly extending flange 211 at least on the outer side, which flange 211 is in abutment with the flange of the inner end of the fan cylinder 11 so that the air valve 20 is fixed to the inner side of the fan body 10. The valve cylinder 21 is a cylinder, and the inner periphery of the valve cylinder 21 forms a columnar space.
The holding post 30 is located in a region near the inside of the center of the valve cylinder 21, four struts 31 distributed uniformly in the circumferential direction are arranged on the outer periphery of the holding post 30, distal ends in the radial direction of the four struts 31 are fixed to the inner cylinder wall of the valve cylinder 21, and a flitch is preferably provided at the distal ends of the struts 31 so that the flitch is fixed to the inner cylinder wall of the valve cylinder 21 (flitch not shown). In this way, the retaining post 30 is fixed in the center of the valve cylinder 21 and coaxial with the axis of the valve cylinder 21. Preferably, the retaining post 30 and the strut 31 are integrally formed from a rigid plastic by an injection molding process.
The adjusting unit 22 is disposed in the valve cylinder 21 and located at the outer periphery of the holding column 30, and the adjusting unit 22 includes a plurality of fan-shaped air guide grids 221, and the plurality of fan-shaped air guide grids 221 are circumferentially uniformly distributed to enclose the circular adjusting unit 22. The inner end in the radial direction of each air guide grille 221 is formed with an inner pin shaft 222, the outer end in the radial direction of each air guide grille 221 is formed with an outer pin shaft 223, the inner pin shaft 222 of each air guide grille 221 extends into the retaining column 30, the outer pin shaft 223 of each air guide grille 221 penetrates through the wall of the valve cylinder 21 and radially extends out of the valve cylinder 21, and therefore each air guide grille 221 can twist around a pin shaft, when the air guide grille 221 performs synchronous twisting, air inlets between the air guide grills 221 can be changed in direction and size, and the adjusting unit 22 has the function of adjusting wind direction and air quantity.
Since the air guide grids 221 are configured as the adjusting units 22 in a circumferential arrangement, all the air guide grids 221 of the adjusting units 22 can be designed to have the same external dimensions, which is advantageous for mass production of the air guide grids 221. For example, all of the air guide grids 221 may be punched or injection molded using the same mold, and for example, all of the air guide grids 221 may be cut using the same cutting procedure. Thus, the processing cost of the air guide grille 221 in the damper 20 provided by the utility model is lower.
In addition, all the air guide grids 221 are assembled with the holding posts 30 at the inner ends and the valve cylinder 21 at the outer ends, so that the installation of the air guide grids 221 is relatively simple.
The adjusting ring 40 is sleeved outside the valve cylinder 21, and enables the adjusting ring 40 to rotate circumferentially; the outer end of the outer pin shaft 223 of each air guide grille 221 is movably connected to the adjusting ring 40, so that the adjusting valve drives all the air guide grille 221 to synchronously twist by the outer pin shaft 223 through circumferential rotation, and the direction and the size of the air inlets 226 between the air guide grille 221 are adjusted.
In some preferred embodiments, the driving slats 224 are fixed to the radially outer end of the outer pin shaft 223 of each air guide grill 221, and long holes 225 are formed in each driving slat 224, and the long holes 225 extend along the length direction of the driving slats 224. Guide rods 41 are fixed to the adjusting ring 40 at circumferential positions corresponding to the driving slats 224, and the guide rods 41 pass through the long holes 225. Thus, during the rotation of the driving adjustment ring 40, the guide rod 41 cooperates with the driving slat 224, so that the driving slat 224 rotates the air guiding grille 221. The advantage of the adjusting ring 40 by the driving strips 224 in combination with the guide rods 41 for driving the air guide grille 221 in rotation is that: the adjusting ring 40 is only required to rotate in the circumferential direction to drive the air guide grill 221 to twist, and no displacement in the axial direction is required.
In some preferred embodiments, a plurality of guide wheels 50 are uniformly distributed on the outer circumference of the valve cylinder 21, the guide wheels 50 having concave tread, e.g., V-shaped tread, arcuate tread. The adjusting ring 40 is synchronously sleeved on a plurality of guide wheels 50, and the guide wheels are used for positioning the adjusting ring 40 and are beneficial to circumferential rotation of the adjusting ring 40.
Furthermore, although exemplary embodiments have been described in the present disclosure, the scope thereof includes any and all embodiments having equivalent elements, modifications, omissions, combinations (e.g., of the various embodiments across), adaptations or alterations as would be appreciated by those in the art. The elements in the claims are to be construed broadly based on the language employed in the claims and are not limited to examples described in the present specification or during the practice of the utility model, which examples are to be construed as non-exclusive. It is intended, therefore, that the specification and examples be considered as exemplary only, with a true scope and spirit being indicated by the following claims and their full scope of equivalents.
The above description is intended to be illustrative and not restrictive. For example, the above-described examples (or one or more aspects thereof) may be used in combination with each other. For example, other embodiments may be used by those of ordinary skill in the art upon reading the above description. In addition, in the above detailed description, various features may be grouped together to streamline the utility model. This is not to be interpreted as an intention that the disclosed features not being claimed are essential to any claim. Rather, inventive subject matter may lie in less than all features of a particular disclosed embodiment. Thus, the following claims are hereby incorporated into the detailed description as examples or embodiments, with each claim standing on its own as a separate embodiment, and it is contemplated that these embodiments may be combined with one another in various combinations or permutations. The scope of the utility model should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.
The above embodiments are only exemplary embodiments of the present utility model and are not intended to limit the present utility model, the scope of which is defined by the claims. Various modifications and equivalent arrangements of this utility model will occur to those skilled in the art, and are intended to be within the spirit and scope of the utility model.
Claims (8)
1. The civil air defense fan is characterized by comprising a fan body and an air valve; the air valve is in butt joint with the inner side of the fan body;
the damper includes:
a valve cylinder;
a retaining post fixedly provided in a central region of the valve cylinder;
the adjusting unit is arranged in the valve cylinder and comprises a plurality of fan-shaped air guide grids which are uniformly distributed in the circumferential direction; an inner pin shaft is formed at the inner end of each air guide grille in the radial direction, an outer pin shaft is formed at the outer end of each air guide grille in the radial direction, the inner pin shaft extends into the retaining column, and the outer pin shaft penetrates through the wall of the valve cylinder;
the adjusting ring is sleeved on the periphery of the valve cylinder, the outer pin shaft of each air guide grille is movably connected to the adjusting ring, and the air guide grille can be driven to twist through rotating the adjusting ring so as to adjust the air inlets among the air guide grilles.
2. The air defense fan according to claim 1 wherein a drive slat is secured to an outer end of each outer pin, the drive slat being perpendicular to the outer pin; the driving lath is provided with a long hole, and the long hole extends along the length direction of the driving lath; the circumferential positions of the adjusting rings corresponding to the outer pin shafts are respectively fixed with a radial outward guide rod, and the guide rods penetrate through the long holes of the corresponding driving laths.
3. The air defense fan according to claim 1, wherein a plurality of guide wheels are circumferentially and uniformly distributed on the periphery of the valve cylinder, the guide wheels are provided with concave wheel surfaces, and the adjusting ring is synchronously sleeved on the plurality of guide wheels.
4. The air defense fan according to claim 1 wherein the retention posts are circumferentially arranged with a plurality of struts having outer ends connected to the inner cylinder wall of the valve cylinder.
5. The personal air protection ventilator of claim 1, wherein the ventilator body comprises a ventilator cylinder, a fan, and a motor; the fan is arranged in the fan cylinder body, the motor is used for driving the fan to rotate, and the fan is an axial flow fan.
6. The air defense fan of claim 5 wherein the valve barrel of the damper interfaces with the inside of the fan barrel through a flange.
7. The air defense fan according to claim 5 wherein the interior of the fan barrel is provided with a mounting platform formed by a longitudinal and transverse arrangement of slats, the motor being secured to the mounting platform.
8. The air guide grid of claim 1, wherein the air guide grid is formed from a metal plate or a rigid plastic plate by stamping and cutting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321337259.6U CN219827213U (en) | 2023-05-30 | 2023-05-30 | Civil air defense fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321337259.6U CN219827213U (en) | 2023-05-30 | 2023-05-30 | Civil air defense fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219827213U true CN219827213U (en) | 2023-10-13 |
Family
ID=88282625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321337259.6U Active CN219827213U (en) | 2023-05-30 | 2023-05-30 | Civil air defense fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219827213U (en) |
-
2023
- 2023-05-30 CN CN202321337259.6U patent/CN219827213U/en active Active
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