CN209042672U - Fresh air system with filter screen cleaning structure - Google Patents

Abstract

The utility model discloses a fresh air system with a filter net cleaning structure, which comprises a casing, an air inlet and an air outlet arranged on the casing, a fan is fixed in the casing, a filter net is arranged at the air inlet, A cleaning slot is fixed on the top wall of the housing, a lifting plate is arranged in the cleaning slot, a cleaning brush is fixed on the side of the lifting plate, a dust suction chamber is arranged in the lifting plate, and a dust collector is fixed on the side of the lifting plate. The suction holes connected with the cavities are fixed with a vertical groove on the inner wall of the cleaning groove, and a driving screw rod is arranged in the vertical groove. The vertical groove is provided with a sliding block which is threadedly connected with the transmission screw rod, and the lifting plate is fixed on the sliding block. The structure of the utility model is reasonable, the filter net can be cleaned, the clogging of the filter net is avoided, the quality of the fresh air is ensured, the use is stable and reliable, the applicability is strong and the practicability is good.

Description

Fresh air system with filter cleaning structure

technical field

The utility model belongs to the technical field of fresh air systems, in particular to a fresh air system with a filter screen cleaning structure.

Background technique

The fresh air system is an existing conventional structure. It mainly uses special equipment on one side of the closed indoor to send fresh air to the room, and then discharges it from the other side to the outside from the special equipment, so as to form a flow of fresh air in the room, so as to satisfy the indoor fresh air ventilation. In the prior art, the fresh air used in the fresh air system to be transported into the room is usually pre-filtered and purified before entering the input pipes, but due to the accumulation of time, there are a lot of dust and impurities in the transmission pipes, so it has been pre-filtered. The filtered fresh air will have a lot of dust or impurities after passing through the conveying pipeline, which will cause the fresh air conveyed to the room to fail to meet the requirements, and it will also easily cause the filtering effect of the pre-filter, which will seriously affect the working performance, applicability and efficiency of the fresh air system. Practicality is limited.

SUMMARY OF THE INVENTION

The purpose of the utility model is to provide a fresh air system with a filter screen cleaning structure with reasonable structure and strong applicability.

The technical solution to achieve the purpose of the present utility model is a fresh air system with a filter screen cleaning structure, comprising a casing, an air inlet and an air outlet arranged on the casing, a fan is fixed in the casing, and a fan is fixed in the casing. A filter screen is arranged at the air inlet, a cleaning groove is fixed on the top wall of the casing, the cleaning groove is located directly above the filter screen, a lifting plate is arranged in the cleaning groove, and a lifting plate is arranged in the cleaning groove. A cleaning brush is fixed on the side of the lifting plate, and the cleaning brush is pressed against the side of the filter screen. The dust suction hole is on the side of the same lifting plate as the cleaning brush, a vertical groove is fixed on the inner wall of the cleaning groove, and a transmission screw rod is arranged in the vertical groove. A vacuum cleaner and a drive motor are fixed on the top of the casing, the drive motor is connected with the drive screw, the vacuum cleaner is communicated with the dust suction cavity, and a vacuum cleaner is arranged in the vertical groove to connect with the drive screw. The slider is threadedly connected with the screw, and the lifting plate is fixed on the slider.

The bottom wall of the casing is fixed with a dust guide slot which communicates with the outdoor, a baffle is arranged on the top of the dust guide slot, and one end of the baffle is connected to the dust guide through a rotating shaft A spring is fixed in the slot hole and between the baffle plate and the inner wall of the dust guide slot hole, and the baffle plate covers the baffle plate in the dust guide slot hole under the action of the spring.

A pressing rod is fixed at the bottom end of the lifting plate. When the lifting plate is lowered, the pressing rod presses against the top surface of the baffle and causes the baffle to rotate around the rotating shaft and downward. A compression spring opens the dust guide slot.

A limit switch is fixed on both the top and bottom ends of the vertical slot, and the limit switch is connected with the drive motor and controls the drive motor to rotate in reverse.

The utility model has positive effects: the structure of the utility model is reasonable, and it is provided with a lifting plate and a cleaning brush, which can clean the filter screen, avoid the blockage of the filter screen, and is conducive to ensuring the quality of the fresh air, and the use is stable and reliable. Strong applicability and good practicality.

Description of drawings

In order to make the content of the present utility model easier to be understood clearly, the present utility model will be described in further detail below according to specific embodiments and in conjunction with the accompanying drawings, wherein:

Figure 1 is a schematic structural diagram of the utility model.

Detailed ways

(Example 1)

FIG. 1 shows a specific embodiment of the present invention, wherein FIG. 1 is a schematic structural diagram of the present invention.

Referring to Fig. 1, a fresh air system with a filter screen cleaning structure includes a casing 1, an air inlet 2 and an air outlet 3 arranged on the casing, and a fan 4 is fixed in the casing. This embodiment Among them, the fan is the structure of the prior art, so it is not described in detail, a filter screen 5 is provided at the air inlet 2, and a cleaning groove 6 is fixed on the top wall of the casing, and the cleaning groove is in the filter Just above the screen, a lifting plate 7 is arranged in the cleaning tank, and a cleaning brush 8 is fixed on the side of the lifting plate. The cleaning brush is pressed against the side of the filter screen, and is arranged in the lifting plate There is a vacuum chamber 9, and a vacuum hole 10 communicated with the vacuum chamber is fixed on the side of the lifting plate. The vacuum hole and the cleaning brush are on the side of the same lifting plate. A vertical slot 11 is fixed on the inner wall of the slot, a drive screw 12 is arranged in the vertical slot, and a vacuum cleaner 13 and a drive motor 14 are fixed on the top of the casing. The drive motor and the drive wire Rods are connected, the vacuum cleaner communicates with the dust suction chamber, a sliding block 15 threadedly connected with the transmission screw rod is arranged in the vertical groove, and the lifting plate is fixed on the sliding block.

A dust guide slot 16 that communicates with the outside is fixed on the bottom wall of the housing, and a baffle plate 17 is arranged at the top of the dust guide slot hole, and one end of the baffle plate is connected to the A spring 19 is fixed in the dust guide slot hole and between the baffle plate and the inner wall of the dust guide slot hole, and the baffle plate is closed in the dust guide slot hole under the action of the spring. .

A pressing rod 20 is fixed at the bottom end of the lifting plate. When the lifting plate is lowered, the pressing rod presses against the top surface of the baffle and causes the baffle to rotate around the rotation axis and move toward the baffle. The lower compression spring opens the dust guide slot.

A limit switch 21 is fixed on both the top and bottom ends of the vertical slot, and the limit switch is connected with the drive motor and controls the drive motor to rotate in reverse. In this embodiment, a power plug, a start-stop switch for the drive motor, and a control switch for the vacuum cleaner are also provided, which are structures in the prior art, and the connection mode is also the connection mode in the prior art.

The structure of the utility model is reasonable, and it is provided with a lifting plate and a cleaning brush, which can clean the filter screen, avoid the blockage of the filter screen, and is conducive to ensuring the quality of fresh air, stable and reliable use, strong applicability and good practicability.

Obviously, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the implementation of the present invention. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. And these obvious changes or changes derived from the essential spirit of the present invention still belong to the protection scope of the present invention.

Claims (4)

1. A fresh air system with a filter screen cleaning structure, comprising a casing, an air inlet and an air outlet arranged on the casing, a fan is fixed in the casing, and a filter is provided at the air inlet. It is characterized in that: a cleaning groove is fixed on the top wall of the casing, the cleaning groove is directly above the filter screen, a lifting plate is arranged in the cleaning groove, and the side of the lifting plate is fixed There is a cleaning brush, the cleaning brush is pressed against the side of the filter screen, a dust suction chamber is arranged in the lifting plate, and a dust suction hole that communicates with the dust suction chamber is fixed on the side of the lifting plate , the suction hole and the cleaning brush are on the side of the same lifting plate, a vertical groove is fixed on the inner wall of the cleaning groove, a transmission screw rod is arranged in the vertical groove, and a transmission screw is arranged in the vertical groove. A vacuum cleaner and a drive motor are fixed on the top of the vacuum cleaner, the drive motor is connected with the transmission screw rod, the vacuum cleaner is communicated with the dust suction chamber, and a thread with the transmission screw rod is arranged in the vertical groove The connected sliding block, the lifting plate is fixed on the sliding block. 2. The fresh air system with a filter cleaning structure according to claim 1, characterized in that: a dust guide slot that communicates with the outdoor is fixed on the bottom wall of the housing, and the dust guide slot is There is a baffle plate on the top of the baffle plate, one end of the baffle plate is connected in the dust guide slot hole through a rotating shaft, and a spring is fixed between the baffle plate and the inner wall of the dust guide slot hole, the baffle plate Under the action of the spring, the baffle is closed in the dust guide slot hole. 3 . The fresh air system with a filter screen cleaning structure according to claim 2 , wherein a pressing rod is fixed at the bottom end of the lifting plate, and when the lifting plate is lowered, the pressing rod presses against 3 . Press on the top surface of the baffle and make the baffle rotate around the rotating shaft and compress the spring downward to open the dust guide slot. 4. The fresh air system with a filter screen cleaning structure according to claim 3, wherein limit switches are fixed at the top and bottom ends of the vertical grooves, and the limit switches are in phase with the drive motor. Connect and control the reverse rotation of the drive motor.