Switchable purification centrifugal fan

Abstract

The utility model discloses a switchable purification centrifugal fan which comprises an air inlet pipe opening and an air outlet section, an air inlet purification section is arranged between the air inlet pipe opening and the air outlet section, and the purification section comprises a driving mechanism, a maintenance door, a rotating mark and working condition switching switch, a sliding rail, a sliding groove, a sealing ring, a sliding type filtering inner container assembly and a sealing shell. When air purification is needed, the sliding type filtering inner container assembly is driven by the lead screw transmission mechanism to move towards the other end, the filter directly faces the air pipe opening and the air outlet, air purification is conducted through the filter at the moment, and the filter can be subjected to primary, medium and efficient matching according to specific requirements and is convenient to use. When ventilation is needed at ordinary times, the lead screw transmission device moves reversely, so that the sliding type filtering inner container assembly moves to the initial position, and ventilation is conducted at ordinary times. The device is applied to places with switching requirements of two working conditions of ordinary ventilation and purification ventilation, and can meet rapid switching of ordinary ventilation and purification ventilation.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the ventilation purification equipment technical direction, specifically related to switchable purification centrifugal fan. BACKGROUND

[0002] The purification centrifugal fan is a centrifugal fan box ventilation equipment, which installs the centrifugal fan in the box body, discharges or sends the air in the target space, achieves the indoor ventilation purpose, and installs the filter assembly in the box body to purify the air.

[0003] The place that has the two working conditions switching needs of the ordinary ventilation and the purification ventilation is generally in the ordinary ventilation working condition, and only using the purification centrifugal fan can cause unnecessary pressure loss in the operation process, consume a lot of energy, and run without energy saving. When only the ordinary ventilation fan is arranged, the original fan needs to be removed, and the purification fan needs to be purchased and installed, so that the whole installation process is time-consuming. If two systems are configured, the economic cost is higher. UTILITY MODEL CONTENTS

[0004] The utility model discloses a switchable purification centrifugal fan to solve the problems in the background art.

[0005] In order to solve the above technical problems, the utility model provides the following technical scheme: a switchable purification centrifugal fan, comprising an air inlet pipe and an air outlet section, an air inlet purification section is arranged between the air inlet pipe and the air outlet section, the purification section comprises a driving mechanism, a maintenance door, a rotating identification and working condition switching switch, a sliding rail, a sliding groove, a sealing ring, a sliding filter inner container assembly and a sealing shell.

[0006] The sealing shell is fixedly connected between the air inlet pipe and the air outlet section, the sliding filter inner container assembly is slidably connected in the sealing shell, the sliding rail is fixedly arranged on the inner bottom of the sealing shell, the sliding groove is arranged on the sliding filter inner container assembly, and the sliding filter inner container assembly is slidably connected with the driving mechanism and the sliding groove and the sliding rail.

[0007] Further, the sliding filter inner container assembly is internally provided with a filter.

[0008] Further, the driving mechanism comprises a sliding nut and a driving screw rod which are threadedly connected with each other, and the sliding nut is fixed to the top of the sliding filter inner container assembly.

[0009] Further, the sealing shell and the sliding filter inner container assembly are provided with a sealing ring.

[0010] Further, the maintenance door is provided with an observation port.

[0011] Further, the rotating identification and working condition switching switch is arranged on the upper side of the outer wall of the air inlet purification section close to the driving mechanism.

[0012] Further, the air outlet section is provided with a double-speed centrifugal fan, and the outer wall of the air outlet section is provided with an air outlet.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] (1) the sliding filter inner container assembly is driven by the driving mechanism, when ordinary ventilation without purification is needed, the sliding filter inner container assembly is moved away from the air inlet and outlet by the reverse movement of the driving screw, when air purification is needed, the sliding filter inner container assembly is moved to the other end by the driving mechanism, so that the filter is opposite to the air inlet and outlet, air purification is realized by the filter, and the filter suitable for the required air quality is selected, so that the air quality of the target grade is achieved, the use is convenient, two groups of fans and ventilation pipes are not needed, and the equipment cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings are included to provide a further understanding of the utility model, constitute a part of the specification, are used together with the embodiments of the utility model to explain the utility model, and do not constitute the limitation to the utility model. In the drawings:

[0016] Fig. 1 It is the overall structure schematic view of the utility model;

[0017] Fig. 2 It is the back structure schematic view of the utility model;

[0018] Fig. 3 It is the internal structure section view of the purification section of the utility model.

[0019] In the drawing: 1, air pipe port;2, air outlet section;3, purification section;31, driving mechanism;32, maintenance door;33, rotating identification and working condition switching switch;34, filter;35, sliding rail;36, sliding groove;37, sealing ring;38, sliding filter inner container assembly;39, sealing shell;310, sliding nut;311, driving screw;4, double-speed centrifugal fan;5, air outlet. DETAILED DESCRIPTION

[0020] The utility model discloses technical scheme further makes non-restrictive detailed description with preferable embodiment and its drawing. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments that the ordinary skill in the art obtains without making creative labor belong to the range of protection of the utility model.

[0021] Please refer to Figs. 1-3 The utility model provides technical scheme: switchable purification centrifugal fan, including air inlet pipe 1 and air outlet section 2, be provided with air inlet purification section 3 between air inlet pipe 1 and air outlet section 2, and purification section 3 includes drive mechanism 31, maintenance door 32, rotating identification and working condition switch 33, slide rail 35, slide groove 36, sealing ring 37, sliding type filter inner container assembly 38 and sealing shell 39.

[0022] Sealing shell 39 fixedly connected between air pipe 1 and air outlet section 2, sliding type filter inner container assembly 38 is slidably connected in sealing shell 39, and slide rail 35 is fixedly set in the inner bottom of sealing shell 39, and slide groove 36 is set on sliding type filter inner container assembly 38, and sliding type filter inner container assembly 38 is slidably connected with drive mechanism 31 and slide groove 36 and slide rail 35.

[0023] Further, the inside of sliding type filter inner container assembly 38 is provided with filter 34, and filter 34 is specifically combined according to the initial, medium and high efficiency combination of specific requirement setting.

[0024] Further, drive mechanism 31 includes sliding nut 310 and drive screw 311 that are threadedly connected with each other, and sliding nut 310 is fixed to the top of sliding type filter inner container assembly 38.

[0025] Further, sealing ring 37 is arranged between sealing shell 39 and sliding type filter inner container assembly 38.

[0026] Further, the maintenance door 32 is provided with an observation port.

[0027] Further, rotating identification and working condition switch 33 is arranged on the outer wall of air inlet purification section 3 and is close to the top of drive mechanism 31.

[0028] Further, double-speed centrifugal fan 4 is arranged in air outlet section 2, and air outlet 5 is arranged on the outer wall of air outlet section 2.

[0029] When the whole fan needs to be purified and ventilated, the drive mechanism 31 is rotated clockwise by rotating the identification and working condition switching switch 33 with a general square wrench until a fixed number of turns is reached, so that the filter 34 in the sliding filter inner container assembly 38 corresponds to the air pipe opening 1 and the air outlet 5, and the double-speed centrifugal fan 4 is switched to the air volume and pressure of the purification working condition, so that the whole fan completes the switching from the usual ventilation working condition to the purification working condition.

[0030] When the usual ventilation working condition is restored, the drive mechanism 31 is rotated counterclockwise by the general square wrench until a fixed number of turns is reached, so that the sliding filter inner container assembly 38 is away from the air pipe opening 1 and the air outlet 5, and the sliding filter inner container assembly 38 is isolated from the usual ventilation side by the sealing gasket, and the double-speed centrifugal fan 4 is switched to the air volume and pressure of the usual ventilation working condition, so that the whole fan completes the switching from the purification working condition to the usual ventilation working condition.

[0031] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application.

[0032] Finally, it should be pointed out that: the above examples are only used to illustrate the technical solutions of the present application, and not to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A switchable centrifugal fan for purification, comprising an air inlet (1) and an air outlet (2), characterized in that, An air inlet purification section (3) is provided between the air inlet (1) and the air outlet (2). The purification section (3) includes a drive mechanism (31), a maintenance door (32), a rotation indicator and working condition switch (33), a slide rail (35), a slide groove (36), a sealing ring (37), a sliding filter inner liner assembly (38), and a sealing shell (39). The sealed housing (39) is fixedly connected between the air inlet (1) and the air outlet (2). The sliding filter inner liner assembly (38) is slidably connected inside the sealed housing (39). The slide rail (35) is fixedly installed at the bottom of the sealed housing (39). The slide groove (36) is installed on the sliding filter inner liner assembly (38). The sliding filter inner liner assembly (38) is slidably connected to the slide rail (35) through the drive mechanism (31) and the slide groove (36).

2. The switchable purification centrifugal fan according to claim 1, characterized in that: The sliding filter inner liner assembly (38) is equipped with a filter (34).

3. The switchable purification centrifugal fan according to claim 2, characterized in that: The drive mechanism (31) includes a sliding nut (310) and a drive screw (311) that are threaded together, and the sliding nut (310) is fixed to the top of the sliding filter inner liner assembly (38).

4. The switchable purification centrifugal fan according to claim 3, characterized in that: A sealing ring (37) is provided between the sealed housing (39) and the sliding filter inner liner assembly (38).

5. The switchable purification centrifugal fan according to claim 4, characterized in that: The maintenance door (32) is provided with an observation port.

6. The switchable purification centrifugal fan according to claim 5, characterized in that: The rotation indicator and operating condition switching switch (33) is located on the outer wall of the air intake purification section (3) above the drive mechanism (31).

7. The switchable purification centrifugal fan according to claim 6, characterized in that: A dual-speed centrifugal fan (4) is installed inside the air outlet section (2), and an air outlet (5) is provided on the outer wall of the air outlet section (2).

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