Heating and ventilation fresh air filtering device

Abstract

The utility model provides a heating and ventilation fresh air filtering device, which relates to the technical field of heating and ventilation fresh air filtering and comprises a heating and ventilation fresh air pipe body, one end of the heating and ventilation fresh air pipe body is provided with an air inlet, and the other end of the heating and ventilation fresh air pipe body is provided with an air outlet. A first-stage filter screen, a second-stage filter screen and a third-stage filter screen are fixedly mounted in the heating and ventilation fresh air pipe body in sequence; by means of a three-stage filtering mode, impurities in air can be filtered more cleanly, and by pressing a pressing rod downwards, three cleaning brushes are driven to rotate at the same time, so that dust and impurities adhering to one side of a first-stage filter screen, one side of a second-stage filter screen and one side of a third-stage filter screen fall off through the three cleaning brushes correspondingly; the situation that too many impurities are attached to the first-stage filter screen, the second-stage filter screen and the third-stage filter screen, and consequently the filtering effect is affected is prevented, and the first-stage filter screen, the second-stage filter screen and the third-stage filter screen do not need to be frequently detached for cleaning due to the cleaning mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of heating ventilation fresh air filtration, especially to a heating ventilation fresh air filtering device. BACKGROUND

[0002] Heating ventilation fresh air is an important component of a heating ventilation air conditioning system, which introduces outdoor fresh air into the room through special equipment, and at the same time, carries out a series of treatments such as filtering, purification, temperature regulation, humidity regulation, etc. on the air, which can effectively remove dust, pollen, bacteria, harmful gases and other pollutants in outdoor air, providing clean and oxygen-rich air for the room. It not only can improve indoor air quality, protect people's health and comfort, but also can protect the heating system equipment and prolong its service life, and is widely used in residential, commercial buildings, medical sites, industrial plants and other types of building environments.

[0003] The utility model discloses a kind of new air filtering devices for heating engineering, including fresh air pipe, the left side inside fixed mounting of fresh air pipe is limited frame, and the left side of limited frame is attached with filter frame, and the inside of filter frame is provided with filter screen;Adaptor shell, and fixedly installed in the outside of fresh air pipe, the inner side of adaptor shell is provided with mounting block fixedly installed on fresh air pipe, the front side of filter screen is fixedly installed with control rod;Adaptor block, it is fixedly installed in the left part outside of mounting block, the left part inside of mounting block is fixedly installed with adaptor rod, and the outside of adaptor rod is provided with fixed mechanism;The inner side right end of movable plate is fixedly installed with lug, and the outer end of movable plate is provided with balance mechanism;The new air filtering device for heating engineering is convenient for disassembly and replacement to filter screen in long time use, avoids the influence on the filtering effect of fresh air.

[0004] In the prior art, to prevent dust and impurities from adhering to one side of the filter screen after long-term use, the filter screen outer frame plate needs to be removed to take out the filter screen from the fresh air duct to clean the dust and impurities on the surface of the filter screen. This operation mode of taking out the filter screen for cleaning is not only complicated, but also inconvenient and laborious in actual operation. Therefore, it is necessary to provide a heating ventilation fresh air filtering device to solve the above technical problems. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the utility model provides a heating ventilation fresh air filtering device.

[0006] The utility model provides a kind of warm new air filtering device, including warm new air pipe body, the one end of warm new air pipe body is provided with air inlet, the other end of warm new air pipe body is provided with exhaust port, the inside of warm new air pipe body is fixed sequentially installed with primary filter screen, secondary filter screen and tertiary filter screen, common horizontal axis is rotatably connected on primary filter screen, secondary filter screen and tertiary filter screen, the one side of primary filter screen, secondary filter screen and tertiary filter screen is provided with cleaning brush, cleaning brush is fixedly sleeved on horizontal axis, the one end of horizontal axis is fixedly sleeved with gear after being stretched to the other side of tertiary filter screen, the pipe wall of warm new air pipe body is vertically slidably connected with pressing rod, the bottom end of pressing rod is fixedly connected with rack, rack is engaged with gear, spring is sleeved on pressing rod.

[0007] Preferably, the top end of the spring is fixedly connected with the inner wall of the warm new air pipe body, and the bottom end of the spring is fixedly connected with the top end of the rack.

[0008] Preferably, the lower part of the air inlet is sequentially communicated with three collecting pipes, the collecting pipes are correspondingly arranged below the one side of the primary filter screen, the secondary filter screen and the tertiary filter screen, the inner side of the collecting pipes is provided with an ash collecting box, and the bottom of the three ash collecting boxes is fixedly connected with a bottom cover after being stretched to below the collecting pipes.

[0009] Preferably, the locking mechanism comprises a handle, the handle is fixedly connected to one side of the bottom cover, a U-shaped seat is fixedly connected to one side of the bottom cover, a rotating shaft is rotatably connected to the U-shaped seat, a clamping piece is fixedly sleeved on the rotating shaft, an installation groove is formed in the U-shaped seat, a clock spring is arranged in the installation groove, one end of the clock spring is fixedly connected with the groove inner wall of the installation groove, the other end of the clock spring is fixedly connected with the shaft wall of the rotating shaft, one end of the clamping piece is provided with a clamping protrusion, a clamping groove block is fixedly connected to one side of the ash collecting box, and the clamping protrusion is hung on the clamping groove block.

[0010] Preferably, the pore size of the filter screen holes of the primary filter screen, the secondary filter screen and the tertiary filter screen decreases sequentially.

[0011] Preferably, the top of the ash collecting box is provided with an opening, and a chamfer is formed around the inner side of the top of the ash collecting box.

[0012] Compared with the related art, the warm new air filtering device provided by the utility model has the following beneficial effects:

[0013] 1、 through the way of three -level filtration, can filter the impurity in the air more clean, and through the downward press press rod, drive three cleaning brush through rotation, thereby through three cleaning brush respectively one -level filter screen, two -level filter screen and three -level filter screen one side of the dust and impurities that adhere to fall, realize convenient to one -level filter screen, two -level filter screen and three -level filter screen one side of the dust and impurities cleaning, prevent impurities adhere to one -level filter screen, two -level filter screen and three -level filter screen too much and affect the filtering effect, such cleaning mode does not need to frequently disassemble one -level filter screen, two -level filter screen and three -level filter screen and clean, make cleaning more labor -saving and convenient.

[0014] 2、 through the mutual matching arrangement of the handle, the clamping piece, the clamping protrusion, the clamping groove block, the rotating shaft, the clockwork, the U-shaped seat and the installation slot in the locking mechanism, the dust collecting box can be conveniently placed into the collecting pipe, and the bottom cover and the collecting pipe can be conveniently installed, fixed and separated, so that the three dust collecting boxes can be taken out at the same time to pour out and clean the dust and impurities inside. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the overall structure schematic view of the utility model;

[0016] Figure 2 It is the overall sectional view of the utility model;

[0017] Figure 3 It is the structure schematic view of the first filter screen, the second filter screen and the third filter screen in the utility model;

[0018] Figure 4 It is the structure schematic view of the horizontal shaft in the utility model;

[0019] Figure 5 It is the structure schematic view of the bottom cover in the utility model;

[0020] Figure 6 It is the enlarged view of A in the utility model.

[0021] Reference numerals in the drawing: 1, warm new air pipe body; 2, air inlet; 3, collecting pipe; 4, bottom cover; 5, air outlet; 6, press rod; 7, cleaning brush; 8, first filter screen; 9, horizontal shaft; 10, locking mechanism; 1001, handle; 1002, clamping piece; 1003, clamping protrusion; 1004, clamping groove block; 1005, rotating shaft; 1006, clockwork; 1007, U-shaped seat; 1008, installation slot; 11, spring; 12, rack; 13, gear; 14, second filter screen; 15, third filter screen; 16, dust collecting box. DETAILED DESCRIPTION

[0022] The utility model will be further described below in combination with the drawings and embodiments.

[0023] Please refer to Figures 1 to 6 The utility new wind filtering device, including utility new wind pipe body 1, utility new wind pipe body 1 one end is provided with air inlet 2, utility new wind pipe body 1 the other end is provided with exhaust port 5, the inside of utility new wind pipe body 1 is sequentially fixed with primary filter screen 8, secondary filter screen 14 and tertiary filter screen 15, primary filter screen 8, secondary filter screen 14 and tertiary filter screen 15 are jointly transversely penetrated and are rotatably connected with horizontal shaft 9, one side of primary filter screen 8, secondary filter screen 14 and tertiary filter screen 15 is provided with cleaning brush 7, cleaning brush 7 is fixedly sleeved on horizontal shaft 9, one end of horizontal shaft 9 is fixedly sleeved with gear 13 after being stretched to the other side of tertiary filter screen 15, utility new wind pipe body 1 is slidably connected with press bar 6 on the pipe wall, press bar 6 bottom end is fixedly connected with rack 12, rack 12 is engaged with gear 13, press bar 6 is sleeved with spring 11, the top end of spring 11 is fixedly connected with the inner wall of utility new wind pipe body 1, the bottom end of spring 11 is fixedly connected with the top end of rack 12, cleaning brush 7 adopts the brush in the prior art, dust and impurities adhered on the filter screen can be brushed off.

[0024] The lower part of air inlet 2 is sequentially communicated with three collecting pipes 3, the collecting pipes 3 are correspondingly arranged below one side of primary filter screen 8, secondary filter screen 14 and tertiary filter screen 15, the inner side of collecting pipe 3 is provided with dust collecting box 16, the bottom of three dust collecting boxes 16 is fixedly connected with bottom cover 4 after being stretched to below collecting pipe 3, the top of bottom cover 4 is fitted with the bottom of collecting pipe 3, bottom cover 4 and collecting pipe 3 are sealingly fitted, two locking mechanisms 10 are symmetrically arranged on the two sides of bottom cover 4.

[0025] Locking mechanism 10 includes handle 1001, handle 1001 is fixedly connected on one side of bottom cover 4, one side of bottom cover 4 is fixedly connected with U-shaped seat 1007, rotating shaft 1005 is rotatably connected on U-shaped seat 1007, clamping piece 1002 is fixedly sleeved on rotating shaft 1005, installation slot 1008 is formed in U-shaped seat 1007, spring 1006 is arranged in installation slot 1008, one end of spring 1006 is fixedly connected with the inner wall of installation slot 1008, the other end of spring 1006 is fixedly connected with the shaft wall of rotating shaft 1005, one end of clamping piece 1002 is provided with clamping protrusion 1003, one side of dust collecting box 16 is fixedly connected with clamping groove block 1004, clamping protrusion 1003 is hung on clamping groove block 1004, through two symmetrically arranged locking mechanisms 10, bottom cover 4 and collecting pipe 3 can be fixedly connected, and bottom cover 4 and collecting pipe 3 can be conveniently disassembled and separated.

[0026] The first filter screen 8, the second filter screen 14 and the third filter screen 15 are all composed of a screen frame and a filter screen, which are prior art and will not be described herein, the pore sizes of the filter screens of the first filter screen 8, the second filter screen 14 and the third filter screen 15 are gradually reduced, and the three-stage filtering is achieved, through the three-stage filtering, the first filter screen 8 intercepts larger particles, the second filter screen 14 filters medium particles, and the third filter screen 15 captures fine particles, through the gradually refined filtering, different sizes of impurities can be effectively removed, and higher filtering precision is achieved.

[0027] The top of the dust collecting box 16 is provided with an opening, and a chamfer is formed on the inner side of the top of the dust collecting box 16, which can effectively reduce the accumulation of dust on the edge of the top of the dust collecting box 16.

[0028] Please refer to Figures 1 to 6 The working principle of the heating and ventilation fresh air filtering device is as follows:

[0029] In use, the air inlet 2 and the air outlet 5 are connected with the heating and ventilation fresh air system pipeline, after the air enters the heating and ventilation fresh air pipeline body 1 through the air inlet 2, the air is filtered through the first filter screen 8, the second filter screen 14 and the third filter screen 15 in turn, and the filtered air is discharged through the air outlet 5, the first filter screen 8 intercepts larger particles, the second filter screen 14 filters medium particles, and the third filter screen 15 captures fine particles, through the three-stage filtering, the dust and impurities in the air can be filtered more cleanly, after long-time filtering, when the dust and impurities adhered to one side of the first filter screen 8, the second filter screen 14 and the third filter screen 15 need to be cleaned, the pressing rod 6 is pressed downward, the pressing rod 6 drives the rack 12 to move downward, the rack 12 drives the gear 13 to rotate, the gear 13 drives the horizontal shaft 9 to rotate, and the horizontal shaft 9 drives the three cleaning brushes 7 to rotate, so that the dust and impurities adhered to one side of the first filter screen 8, the second filter screen 14 and the third filter screen 15 are dropped through the three cleaning brushes 7 respectively, the dust and impurities adhered to one side of the first filter screen 8, the second filter screen 14 and the third filter screen 15 are cleaned, and the dropped dust and impurities fall into the dust collecting box 16 in the collecting pipe 3 for collection; when the dust and impurities collected in the dust collecting box 16 need to be poured out for cleaning, an operator holds the handles 1001 in the two locking mechanisms 10 and presses the clamping pieces 1002 downward, so that the clamping pieces 1002 drive the rotating shaft 1005 to rotate, the spring 1006 is elastically deformed when the rotating shaft 1005 rotates, the clamping protrusions 1003 are moved away from the clamping groove blocks 1004 through the pressing of the clamping pieces 1002, and then the three dust collecting boxes 16 are pulled out from the collecting pipe 3 at the same time by holding the handles 1001 and pulling the bottom cover 4 downward, and then the dust and impurities in the dust collecting boxes 16 can be poured out.

[0030] The above merely illustrates the embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which are made by using the content of the present application specification and drawings, are also included in the patent protection scope of the present application.

Claims

1. A heating ventilation and fresh air filtering device, comprising a heating ventilation and fresh air pipe body (1), one end of the heating ventilation and fresh air pipe body (1) is provided with an air inlet (2), the other end of the heating ventilation and fresh air pipe body (1) is provided with an air outlet (5), characterized in that: The inside of the warm air new air pipe body (1) is sequentially fixedly installed with a first filter screen (8), a second filter screen (14) and a third filter screen (15), the first filter screen (8), the second filter screen (14) and the third filter screen (15) are commonly and transversely penetrated by a horizontal shaft (9) which is rotationally connected, one side of the first filter screen (8), the second filter screen (14) and the third filter screen (15) is provided with a cleaning brush (7), the cleaning brush (7) is fixedly sleeved on the horizontal shaft (9), one end of the horizontal shaft (9) is fixedly sleeved with a gear (13) after being extended to the other side of the third filter screen (15), the pipe wall of the warm air new air pipe body (1) is longitudinally penetrated by a pressing rod (6) which is slidingly connected, the bottom end of the pressing rod (6) is fixedly connected with a gear rack (12), the gear rack (12) is engaged with the gear (13), the pressing rod (6) is sleeved with a spring (11).

2. The heating and fresh air filtering device according to claim 1, characterized in that: The top end of the spring (11) is fixedly connected with the inner wall of the warm air new air pipe body (1), and the bottom end of the spring (11) is fixedly connected with the top end of the gear rack (12).

3. The heating and fresh air filtering device according to claim 1, characterized in that: The lower part of the air inlet (2) is sequentially communicated with three collecting pipes (3), the collecting pipes (3) are correspondingly arranged below one side of the first filter screen (8), the second filter screen (14) and the third filter screen (15), the inner side of the collecting pipe (3) is provided with an ash collecting box (16), the bottom of the three ash collecting boxes (16) is extended to below the collecting pipe (3) and is commonly fixedly connected with a bottom cover (4), the two sides of the bottom cover (4) are symmetrically provided with two locking mechanisms (10).

4. The heating, ventilation, and fresh air filtration device of claim 3, wherein: The locking mechanism (10) comprises a handle (1001), the handle (1001) is fixedly connected to one side of the bottom cover (4), one side of the bottom cover (4) is fixedly connected with a U-shaped seat (1007), the U-shaped seat (1007) is rotationally connected with a rotating shaft (1005), the rotating shaft (1005) is fixedly sleeved with a clamping piece (1002), the U-shaped seat (1007) is provided with a mounting groove (1008), the mounting groove (1008) is provided with a clockwork spring (1006), one end of the clockwork spring (1006) is fixedly connected with the groove inner wall of the mounting groove (1008), the other end of the clockwork spring (1006) is fixedly connected with the shaft wall of the rotating shaft (1005), one end of the clamping piece (1002) is provided with a clamping protrusion (1003), one side of the ash collecting box (16) is fixedly connected with a clamping groove block (1004), the clamping protrusion (1003) is hung on the clamping groove block (1004).

5. The heating, ventilation, and fresh air filtration device of claim 1, wherein: The pore diameters of the filter screen holes of the first filter screen (8), the second filter screen (14) and the third filter screen (15) are sequentially reduced.

6. The heating, ventilation, and fresh air filtration device of claim 3, wherein: The top of the ash collecting box (16) is provided with an opening, and a chamfer is formed in the inner side of the top of the ash collecting box (16).

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