CN216856089U

CN216856089U - Air filter

Info

Publication number: CN216856089U
Application number: CN202220058445.5U
Authority: CN
Inventors: 徐文; 刘永泉
Original assignee: Ningbo Jinzheng Technology Co ltd
Current assignee: Ningbo Jinzheng Technology Co ltd
Priority date: 2022-01-11
Filing date: 2022-01-11
Publication date: 2022-07-01
Anticipated expiration: 2032-01-11

Abstract

The utility model discloses an air filter, and aims to provide an air filter with a filter screen capable of being replaced in time. The novel high-pressure water-saving valve comprises a valve body, a first flow sensor, a second flow sensor and a pressure comparator, wherein an input pipe is fixed on one side of the valve body, the valve body is connected with the first flow sensor through the input pipe, an output pipe is fixed on the other side of the valve body, the valve body is connected with the second flow sensor through the output pipe, the first flow sensor and the second flow sensor are both electrically connected with the pressure comparator, a filter screen corresponding to the output pipe is arranged in the valve body, the filter screen is detachably connected with the valve body, and the input pipe is communicated with the output pipe through the filter screen. The utility model has the beneficial effects that: the filter screen can be replaced in time; the filter screen is convenient and quick to disassemble; the air tightness in the filter cavity is ensured; the filtering effect of the air is improved and ensured.

Description

Air filter

Technical Field

The utility model relates to the technical field of air filters, in particular to an air filter.

Background

With the increase of traffic level, more and more families select cars as transportation tools, and more enterprises select cars as transportation tools. An air filter is often provided in an automobile to remove dust, odor, and the like from compressed air, thereby improving the driving performance and comfort of the automobile.

The Chinese patent publication No. CN212400848U, the publication date of No. 2021, 1/26, discloses an air filtering device for an automobile air conditioner, which comprises an air inlet shell and a warm air accessory, wherein the air inlet shell is connected with an air conditioner box body and is used as an air inlet channel of the air conditioner box body, and the warm air accessory is arranged at an air inlet of the air inlet shell and is used for guiding air and blocking foreign matters; be equipped with air cleaner between the air intake of air inlet casing and the warm braw annex and protect the frame, air cleaner protects the frame and includes frame body and braced frame, the frame body compresses tightly through the warm braw annex and fixes the air intake terminal surface at the air inlet casing, braced frame sets up the air intake inboard at the air inlet casing and links to each other with the frame body inward flange of limit, braced frame inboard sets up air cleaner.

The shortcoming that above-mentioned patent exists is because air cleaner is the during operation for a long time, produces the jam very easily, if the filter screen can not in time be changed, leads to air cleaner to give vent to anger unsmoothly very easily to it is poor to cause the filtration effect.

SUMMERY OF THE UTILITY MODEL

The utility model provides an air filter with a filter screen capable of being replaced in time, aiming at overcoming the defect that the filter screen cannot be replaced in time in the prior art.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides an air filter, it includes valve body, flow sensor one, flow sensor two and pressure comparator, one side of valve body is fixed with the input tube, the valve body passes through the input tube and is connected with flow sensor one, the opposite side of valve body is fixed with the output tube, the valve body passes through the output tube and is connected with flow sensor two, flow sensor one and flow sensor two all are connected with the pressure comparator electricity, this internal filter screen that corresponds with the output tube that is equipped with of valve, the filter screen can be dismantled with the valve body and be connected, the input tube is linked together through filter screen and output tube.

The improved valve is characterized in that an input pipe is fixed on one side of the valve body, the valve body is connected with a first flow sensor through the input pipe, an output pipe is fixed on the other side of the valve body, the valve body is connected with a second flow sensor through the output pipe, the first flow sensor and the second flow sensor are both electrically connected with a pressure comparator, a filter screen corresponding to the output pipe is arranged in the valve body, the filter screen is detachably connected with the valve body, and the input pipe is communicated with the output pipe through the filter screen. The device can be used for conveying gas and liquid; the external compressed air sequentially enters the valve body through the flow sensor I and the input pipe, is output from the output pipe through the filter screen and flows through the flow sensor II, the pressure values are fed back to the pressure comparator by the flow sensor I and the flow sensor II for pressure comparison, when the output pressure is smaller than the input pressure by 0.3MPa, a signal is sent by the system to inform a user of replacing or cleaning the filter screen in time, and the purpose that the filter screen can be replaced in time is achieved.

Preferably, one end of the valve body is sealed, the other end of the valve body is provided with a cover body, the cover body is sealed and detachably connected with the valve body, the cover body and the interior of the valve body form a filter cavity respectively communicated with the input pipe and the output pipe, and the filter screen is positioned in the filter cavity. When a user changes the filter screen, the cover body is only needed to be detached, and then the filter screen is taken out from the filter cavity, so that the filter screen is convenient and quick; meanwhile, the filter screen is connected with the valve body in a sealing manner, so that the air tightness in the filter cavity is guaranteed.

As preferred, the filter chamber includes the chucking groove, the input tube is located the side in chucking groove and communicates with the chucking groove, the lid is sealed and can dismantle the connection with the open end in chucking groove, the bottom in chucking groove be equipped with filter screen assorted spacing groove, the output tube is located the side in spacing groove and is linked together with the spacing groove, the shape of filter screen is the tubbiness, the filter screen is located the spacing inslot, the open end of filter screen is equipped with the limiting plate, the limiting plate is located the bottom in chucking groove and covers the open end in spacing groove completely, the bottom of limiting plate is connected with the open end of filter screen, be equipped with the through-hole on the limiting plate, the chucking groove is linked together through-hole and spacing groove, the chucking inslot is equipped with pressure spring, the lid is connected through pressure spring and the top of limiting plate. Compressed air enters the clamping groove through the input pipe, the limiting plate is positioned at the bottom of the clamping groove and completely covers the opening end of the limiting groove, so that the compressed air entering the clamping groove can completely enter the filter screen through the through hole, the filter screen is barrel-shaped, the compressed air entering the filter screen can be completely filtered and then is output from the output pipe, and the air filtering effect is improved; the pressure spring plays limiting displacement to the filter screen on the one hand, and on the other hand makes the bottom in limiting plate and chucking groove closely laminate, improves the leakproofness of spacing groove open end to guarantee that most gas can enter into the filter screen from the through-hole.

Preferably, the opening end of the filter screen is provided with a flange edge, the filter screen is sleeved with a spring body, one end of the spring body is connected with the flange edge, and the other end of the spring body is connected with the bottom of the limiting groove. Due to the design of the spring body, on one hand, the filter screen can be further limited, and the filtering effect of air is ensured; on the other hand, after the cover body is detached by a user, the filter screen can move upwards under the action of the spring body, and the filter screen is convenient to take by the user and convenient to detach.

Preferably, the cover body is provided with a clamping groove matched with the compression spring, and the clamping groove is located at the bottom of the cover body. The clamping groove is favorable for guaranteeing the position stability of the compression spring during compression, preventing the compression spring from generating position deviation and causing deformation, and prolonging the service life of the compression spring.

Preferably, the locking groove is formed by protruding from the bottom of the cover body to the top thereof. The draw-in groove is protruding to the top of lid, provides the impetus when dismantling the lid for the user, the dismantlement of the lid of being convenient for.

Preferably, the top of the cover body is provided with an L-shaped pressing plate, the bottom of the clamping groove protrudes out of the filter cavity to form a cone, the front side and the rear side of the clamping groove are respectively provided with a first limiting hole matched with one edge of the L-shaped pressing plate, the L-shaped pressing plate is provided with a second limiting hole matched with the cone, and the cone is located in the second limiting hole. The L-shaped pressing plate is helpful for the cover body to compress the limiting plate through the compression spring, meanwhile, the L-shaped pressing plate is limited in the vertical direction through the first limiting hole, and then is limited in the horizontal direction under the action of the compression spring through the second limiting hole and the cone, so that the cover body can be positioned conveniently.

Preferably, the open end of the clamping groove is provided with an L-shaped sealing groove, a sealing ring is arranged in the sealing groove, an L-shaped flanging matched with the sealing groove is fixed at the edge of the cover body, and the height of the L-shaped flanging is smaller than or equal to the depth of the clamping groove. The cover body compresses the sealing ring under the action of the L-shaped pressing plate, so that the airtightness of the filter cavity is ensured; the height of the L-shaped flanging is less than or equal to the depth of the clamping groove, so that the cone can be matched with the limiting hole in the L-shaped pressing plate.

As preferred, the edge of through-hole is equipped with the riser of a plurality of pieces, riser and limiting plate fixed connection, a plurality of risers along the edge evenly distributed of through-hole constitute one with the inside assorted ring structure of pressure spring, the riser is located pressure spring, pressure spring's one end is spacing in the draw-in groove, pressure spring's other end cover is located on the ring structure that a plurality of risers constitute. Thereby further improving the position stability of the compression spring, preventing the compression spring from generating position deviation to cause deformation and being beneficial to prolonging the service life of the compression spring.

The beneficial effects of the utility model are: the filter screen can be replaced in time; the filter screen is convenient and quick to disassemble; the air tightness in the filter cavity is ensured; the filtering effect of the air is improved and ensured; the compression spring has a limiting effect on the filter screen on one hand, and improves the sealing property of the opening end of the limiting groove on the other hand, so that most of gas can enter the filter screen from the through hole; due to the design of the spring body, on one hand, the filter screen can be further limited, and the air filtering effect is ensured; on the other hand, after the user removes the cover body, the user can conveniently take the cover body, and the cover body is convenient to remove; the position stability of the compression spring during compression is guaranteed, the compression spring is prevented from being deformed due to position deviation, and the service life of the compression spring is prolonged; the clamping groove protrudes towards the top of the cover body, so that an acting point is provided for a user when the cover body is detached, and the cover body is convenient to detach; the L-shaped pressing plate helps the cover body to compress the limiting plate through the pressing spring, and meanwhile, the cover body can be positioned conveniently.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of the connection of the present invention;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a rear view of FIG. 2;

fig. 5 is a sectional view of B-B in fig. 3.

In the figure: 1. the valve comprises a valve body, 2, a first flow sensor, 3, a second flow sensor, 4, a pressure comparator, 5, an input pipe, 6, an output pipe, 7, a filter screen, 8, a cover body, 9, a filter cavity, 10, a clamping groove, 11, a limiting groove, 12, a limiting plate, 13, a through hole, 14, a compression spring, 15, a flange edge, 16, a spring body, 17, a clamping groove, 18, an L-shaped pressing plate, 19, a cone, 20, a first limiting hole, 21, a second limiting hole, 22, a sealing groove, 23, a sealing ring, 24, an L-shaped flanging and 25 a vertical plate.

Detailed Description

The utility model is further described with reference to the following figures and detailed description.

In the embodiment shown in fig. 1, 2, 3 and 4, an air filter includes a valve body 1, a first flow sensor 2, a second flow sensor 3 and a pressure comparator 4, an input pipe 5 is fixed on one side of the valve body 1, the valve body 1 is connected with the first flow sensor 2 through the input pipe 5, an output pipe 6 is fixed on the other side of the valve body 1, the valve body 1 is connected with the second flow sensor 3 through the output pipe 6, both the first flow sensor 2 and the second flow sensor 3 are electrically connected with the pressure comparator 4, as shown in fig. 5, a filter screen 7 corresponding to the output pipe 6 is arranged in the valve body 1, the filter screen 7 is detachably connected with the valve body 1, and the input pipe 5 is communicated with the output pipe 6 through the filter screen 7.

As shown in fig. 5, one end of the valve body 1 is sealed, the other end of the valve body 1 is provided with a cover body 8, the cover body 8 is sealed and detachably connected with the valve body 1, the cover body 8 and the interior of the valve body 1 form a filter chamber 9 respectively communicated with the input pipe 5 and the output pipe 6, and the filter screen 7 is located in the filter chamber 9.

As shown in fig. 5, the filter cavity 9 includes a clamping groove 10, the input tube 5 is located at the side of the clamping groove 10 and is communicated with the clamping groove 10, the cover 8 is sealed and detachably connected with the open end of the clamping groove 10, the bottom of the clamping groove 10 is provided with a limiting groove 11 matched with the filter screen 7, the output tube 6 is located at the side of the limiting groove 11 and is communicated with the limiting groove 11, the filter screen 7 is barrel-shaped, the filter screen 7 is located in the limiting groove 11, the open end of the filter screen 7 is provided with a limiting plate 12, the limiting plate 12 is located at the bottom of the clamping groove 10 and completely covers the open end of the limiting groove 11, the bottom of the limiting plate 12 is connected with the open end of the filter screen 7, the limiting plate 12 is provided with a through hole 13, the clamping groove 10 is communicated with the limiting groove 11 through the through hole 13, a compression spring 14 is arranged in the clamping groove 10, and the cover 8 is connected with the top of the limiting plate 12 through the compression spring 14.

As shown in fig. 5, a flange 15 is provided at the opening end of the filter screen 7, a spring body 16 is provided outside the filter screen 7, one end of the spring body 16 is connected with the flange 15, and the other end of the spring body 16 is connected with the bottom of the limiting groove 11.

As shown in fig. 5, the cover 8 is provided with a locking groove 17 matching with the compression spring 14, and the locking groove 17 is located at the bottom of the cover 8. The engaging groove 17 is formed by projecting the bottom of the lid 8 toward the top thereof.

As shown in fig. 1 to 5, an L-shaped pressing plate 18 is disposed at the top of the cover 8, the bottom of the clamping groove 17 protrudes out of the filter chamber 9 to form a cone 19, a first limiting hole 20 matched with one side of the L-shaped pressing plate 18 is disposed on each of the front and rear sides of the clamping groove 10, a second limiting hole 21 matched with the cone 19 is disposed on the L-shaped pressing plate 18, and the cone 19 is disposed in the second limiting hole 21.

As shown in fig. 5, an L-shaped sealing groove 22 is provided at the opening end of the clamping groove 10, a sealing ring 23 is provided in the sealing groove 22, an L-shaped flange 24 matched with the sealing groove is fixed at the edge of the cover 8, and the height of the L-shaped flange 24 is less than or equal to the depth of the slot 17.

As shown in fig. 5, the edge of the through hole 13 is provided with a plurality of vertical plates 25, the vertical plates 25 are fixedly connected with the limiting plate 12, the vertical plates 25 are uniformly distributed along the edge of the through hole 13 to form a circular ring structure matched with the inside of the compression spring 14, the vertical plates 25 are located in the compression spring 14, one end of the compression spring 14 is limited in the clamping groove 17, and the other end of the compression spring 14 is sleeved on the circular ring structure formed by the vertical plates 25.

The device can be used for conveying gas and liquid; the external compressed air sequentially enters the valve body 1 through the flow sensor I2 and the input pipe 5, is filtered by the filter screen 7 and is output from the output pipe 6 and flows through the flow sensor II 3, the pressure values of the flow sensor I2 and the flow sensor II 3 are fed back to the pressure comparator 4 to be compared in pressure, when the output pressure is smaller than the input pressure by 0.3MPa, a system sends a signal to inform a user of replacing or cleaning the filter screen 7 in time, and the purpose that the filter screen 7 can be replaced in time is achieved.

When a user replaces the filter screen 7, the user only needs to press the cover body 8 downwards through the cone 19 to enable the cone 19 to be separated from the second limiting hole 21, then the L-shaped pressing plate 18 is drawn out of the first limiting hole 20 towards one side, and the user can hold the cone 19 by hand to take out the cover body 8; at this time, the filter screen 7 moves upward under the reset action of the spring body 16, so that the filter screen 7 is convenient to take and remove by a user, and the filter screen 7 is convenient to replace.

Claims

1. An air filter is characterized by comprising a valve body (1), a first flow sensor (2), a second flow sensor (3) and a pressure comparator (4), an input pipe (5) is fixed on one side of the valve body (1), the valve body (1) is connected with a first flow sensor (2) through the input pipe (5), an output pipe (6) is fixed on the other side of the valve body (1), the valve body (1) is connected with a second flow sensor (3) through the output pipe (6), the first flow sensor (2) and the second flow sensor (3) are both electrically connected with the pressure comparator (4), a filter screen (7) corresponding to the output pipe (6) is arranged in the valve body (1), the filter screen (7) is detachably connected with the valve body (1), and the input pipe (5) is communicated with the output pipe (6) through the filter screen (7).

2. An air filter according to claim 1, wherein one end of the valve body (1) is sealed, the other end of the valve body (1) is provided with a cover body (8), the cover body (8) is hermetically and detachably connected with the valve body (1), the cover body (8) and the interior of the valve body (1) form a filter cavity (9) which is respectively communicated with the input pipe (5) and the output pipe (6), and the filter screen (7) is positioned in the filter cavity (9).

3. An air filter according to claim 2, characterized in that the filter chamber (9) comprises a clamping groove (10), the input pipe (5) is located at the side of the clamping groove (10) and is communicated with the clamping groove (10), the cover body (8) is sealed and detachably connected with the open end of the clamping groove (10), the bottom of the clamping groove (10) is provided with a limiting groove (11) matched with the filter screen (7), the output pipe (6) is located at the side of the limiting groove (11) and is communicated with the limiting groove (11), the filter screen (7) is barrel-shaped, the filter screen (7) is located in the limiting groove (11), the open end of the filter screen (7) is provided with a limiting plate (12), the limiting plate (12) is located at the bottom of the clamping groove (10) and completely covers the open end of the limiting groove (11), the bottom of the limiting plate (12) is connected with the open end of the filter screen (7), be equipped with through-hole (13) on limiting plate (12), chucking groove (10) are linked together through-hole (13) and spacing groove (11), be equipped with pressure spring (14) in chucking groove (10), lid (8) are connected with the top of limiting plate (12) through pressure spring (14).

4. An air filter according to claim 3, characterized in that the open end of the filter screen (7) is provided with a flange (15), the filter screen (7) is sleeved with a spring body (16), one end of the spring body (16) is connected with the flange (15), and the other end of the spring body (16) is connected with the bottom of the limiting groove (11).

5. An air filter according to claim 3, characterized in that the cover (8) is provided with a slot (17) matching the pressure spring (14), the slot (17) being located at the bottom of the cover (8).

6. An air filter according to claim 5, wherein the slot (17) is formed by a protrusion from the bottom of the cover (8) towards the top thereof.

7. The air filter of claim 5 or 6, wherein an L-shaped pressing plate (18) is arranged at the top of the cover body (8), the bottom of the clamping groove (17) protrudes out of the filter cavity (9) to form a cone (19), a first limiting hole (20) matched with one side of the L-shaped pressing plate (18) is formed in each of the front side and the rear side of the clamping groove (10), a second limiting hole (21) matched with the cone (19) is formed in the L-shaped pressing plate (18), and the cone (19) is located in the second limiting hole (21).

8. The air filter according to claim 5, wherein an L-shaped sealing groove (22) is formed at the opening end of the clamping groove (10), a sealing ring (23) is arranged in the sealing groove, an L-shaped flanging (24) matched with the sealing groove (22) is fixed at the edge of the cover body (8), and the height of the L-shaped flanging (24) is smaller than or equal to the depth of the clamping groove (17).

9. The air filter of claim 5, wherein a plurality of vertical plates (25) are arranged at the edge of the through hole (13), the vertical plates (25) are fixedly connected with the limiting plate (12), the vertical plates (25) are uniformly distributed along the edge of the through hole (13) to form a circular ring structure matched with the inside of the compression spring (14), the vertical plates (25) are located in the compression spring (14), one end of the compression spring (14) is limited in the clamping groove (17), and the other end of the compression spring (14) is sleeved on the circular ring structure formed by the vertical plates (25).