Filter

Abstract

The filter comprises an upper end cover, a lower end cover, an inner support, filter paper and a winding support, a through hole is formed in the inner support, the filter paper is of a cylindrical structure, the inner support is inserted into the filter paper, the upper end cover and the lower end cover are connected to the two ends of the inner support respectively, and the diameter of the upper end cover and the diameter of the lower end cover are both larger than that of the inner support; the winding support is of a spring-shaped structure, the winding support is arranged outside the filter paper in a sleeving mode and abuts against the filter paper, the surface of the filter paper is folded to form a stacked structure, and gaps exist between the folded filter paper. The filter has the effect of reducing the production cost and time consumption of the filter.

Description

Technical Field

[0001] This application relates to the field of air filter elements, and particularly to a filter. Background Art

[0002] A filter generally refers to an automotive filter, which is a component of an automotive engine. The filter can filter impurities or gases through a filter paper. During the operation of a fuel engine, a large amount of air is required. By installing a filter at the air intake of the vehicle, the probability of solid particles in the air entering the engine can be reduced, thereby extending the service life of the automotive engine.

[0003] The related filter includes an upper end cap, a lower end cap, an inner support, an outer support, and a filter paper. The filter paper is in a cylindrical structure. The inner support is inserted into the cylinder formed by the filter paper, and the outer support is sleeved outside the filter paper. A plurality of ventilation holes are provided on both the inner support and the outer support. The upper end cap and the lower end cap are respectively arranged at both ends of the filter paper, and the upper end cap and the lower end cap are respectively connected to the inner support and the outer support. A ventilation hole is provided on the upper end cap. Air enters the inner support through the ventilation hole and passes through the filter paper. The filter paper can filter solid particles in the air, achieving the effect of protecting the automotive engine.

[0004] The above-mentioned related technical solutions have the following defects: The overall structure of the filter is relatively complex, and the production and assembly processes are relatively cumbersome, resulting in high production time and costs. Summary of the Utility Model

[0005] In order to reduce the production cost and time of the filter, this application provides a filter.

[0006] The filter provided by this application adopts the following technical solution:

[0007] A filter includes an upper end cap, a lower end cap, an inner support, a filter paper, and a winding support. A through hole is provided on the inner support. The filter paper is in a cylindrical structure. The inner support is inserted into the filter paper. The upper end cap and the lower end cap are respectively connected to both ends of the inner support. The diameters of the upper end cap and the lower end cap are both larger than the diameter of the inner support. The winding support is in a spring-like structure. The winding support is sleeved outside the filter paper and abuts against the filter paper. The surface of the filter paper is folded to form a stacked structure, and there are gaps between the folded filter papers.

[0008] By adopting the above technical solution, when air enters the inner support from the upper end cover, the air can pass through the filter paper and flow, enabling the filter paper to filter solid particles in the air. By setting the filter paper as a cylindrical structure and inserting the inner support in the middle of the cylindrical structure, the inner support props up the filter paper. When the air flow rate is large or the air pressure is high, the inner support keeps the filter paper in a cylindrical structure, reducing the probability of the filter paper deforming or being damaged. By sleeving a wire-wound support on the filter paper, the wire-wound support supports the folded part of the filter paper. When the folded parts of the filter paper abut against each other, the contact area between the air and the filter paper decreases, and the filtering efficiency of the filter paper drops at this time. By using the wire-wound support sleeved on the filter paper, there are always gaps between the folded parts of the filter paper, thereby enabling the filter paper to maintain a large surface area and perform efficient filtering work. The wire-wound support has a simple structure and a simple installation process, which can reduce the production cost and time consumption of the filter.

[0009] Optionally, the wire-wound support is adhesively fixed to the filter paper.

[0010] By adopting the above technical solution, by adhesively fixing the wire-wound support to the filter paper, the connection between the outer wall of the filter paper and the wire-wound support is made more firm. When air passes through the filter paper, the probability of the filter paper deforming under the air pressure can be reduced, enabling the filter to maintain better filtering performance.

[0011] Optionally, a positioning hole is provided on the lower end cover. The positioning hole is a circular hole and is coaxially arranged relative to the lower end cover.

[0012] By adopting the above technical solution, by providing a positioning hole on the lower end cover, the user can set a positioning part in the mechanical structure. When the filter is installed in the mechanical structure, the positioning part is inserted into the positioning hole, thereby improving the stability of the lower end cover and reducing the probability of the lower end cover shaking in the mechanical structure.

[0013] Optionally, a plurality of card slots are provided on the end face of the lower end cover. The card slots are equidistantly spaced along the circumference of the lower end cover.

[0014] By adopting the above technical solution, by providing a plurality of card slots on the lower end cover, when the user installs the filter, the positioning part in the mechanical structure can be stuck in the card slots, further reducing the probability of the filter rotating in the mechanical structure and reducing the probability of the filter loosening in the mechanical structure when the automobile engine is working.

[0015] Optionally, a connecting pipe is provided on the upper end cover. The connecting pipe is coaxially connected to the upper end cover, and a ventilation hole is provided on the upper end cover. The ventilation hole is provided at the center of the upper end cover.

[0016] By adopting the above technical solution, by providing a connecting pipe on the upper end cover, the user can connect an air inlet pipe or an exhaust pipe to the connecting pipe, which is convenient for use and installation.

[0017] Optionally, the inner support and the filter paper are arranged in a frustum structure, and the diameters of the inner support and the filter paper are smaller on the side close to the lower end cover.

[0018] By adopting the above technical solution, when the filter works, gas enters and exits through the ventilation holes on the upper end cover. The air intake volume is larger on the side of the filter paper close to the ventilation holes, and solid particles are more likely to accumulate. The diameter of the filter paper is larger on the side close to the ventilation holes, and the surface area is larger, which can filter more impurities. Setting the filter paper in a frustum structure achieves the effects of streamlining the structural dimensions and saving materials.

[0019] Optionally, a plurality of grooves are formed on the outer wall of the connecting pipe.

[0020] By adopting the above technical solution, by forming a plurality of grooves on the outer wall of the connecting pipe, the friction force on the outer wall of the connecting pipe is increased. When the hands of the user are dirty with dust, oil, etc., the user can hold the connecting pipe and insert and remove the filter, which is convenient to use.

[0021] Optionally, a rubber sleeve is sleeved on the outer wall of the connecting pipe, and the rubber sleeve is made of a rough surface material.

[0022] By adopting the above technical solution, by setting a rubber sleeve on the outer wall of the connecting pipe, the rubber sleeve can increase the surface friction force of the connecting pipe, thereby facilitating the user to install the filter.

[0023] In summary, the beneficial technical effects of the present application are as follows:

[0024] 1. When air enters the inner support from the upper end cover, the air can pass through the filter paper and flow, enabling the filter paper to filter solid particles in the air. By setting the filter paper in a cylindrical structure and inserting the inner support in the middle of the cylindrical structure, the inner support props up the filter paper. When the air flow rate is large or the air pressure is high, the inner support keeps the filter paper in a cylindrical structure, reducing the probability of the filter paper deforming or being damaged. By sleeving a winding support outside the filter paper, the winding support supports the folded part of the filter paper. When the folded parts of the filter paper abut against each other, the contact area between the air and the filter paper decreases, and the filtering efficiency of the filter paper drops at this time. By using the winding support to sleeve on the filter paper, there are always gaps between the folded parts of the filter paper, thereby enabling the filter paper to maintain a large surface area and perform efficient filtering work. The winding support structure is simple, and the installation process is simple, which can reduce the production cost and time consumption of the filter.

[0025] 2. By bonding and fixing the winding support to the filter paper, the connection between the outer wall of the filter paper and the winding support is made more firm. When air passes through the filter paper, the probability of the filter paper deforming under the action of air pressure can be reduced, enabling the filter to maintain better filtering performance.

[0026] 3. By providing a plurality of card slots on the lower end cover, when the user installs the filter, the positioning member in the mechanical structure can be stuck in the card slots, further reducing the probability of the filter rotating in the mechanical structure and reducing the probability of the filter loosening in the mechanical structure when the vehicle engine is working. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present application.

[0028] Figure 2 is a schematic diagram of the positions of the upper end cover and the lower end cover of an embodiment of the present application.

[0029] Figure 3 is a schematic diagram of the structure of the filter paper of an embodiment of the present application.

[0030] Figure 4 is a schematic diagram of the structure of the winding support of an embodiment of the present application.

[0031] Figure 5 is a schematic diagram of the position of the groove of the upper end cover of an embodiment of the present application.

[0032] Reference numerals: 1, upper end cover; 11, ventilation hole; 12, connecting pipe; 121, groove; 2, lower end cover; 21, positioning hole; 22, card slot; 3, inner support; 4, filter paper; 5, winding support. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] The present application will be further described in detail below with reference to the accompanying drawings.

[0034] An embodiment of the present application discloses a filter, referring to Figure 1 and Figure 2 , including an upper end cover 1, a lower end cover 2, an inner support 3, a filter paper 4 and a winding support 5. The inner support 3 is a cylindrical structure, the upper end cover 1 and the lower end cover 2 are both circular covers, and both ends of the inner support 3 are coaxially fixed to the upper end cover 1 and the lower end cover 2 respectively. The filter paper 4 is a cylindrical structure, the filter paper 4 is sleeved on the inner support 3, the winding support 5 is a spring structure, and the winding support 5 is wound around and sleeved on the filter paper 4. A ventilation hole 11 is provided on the upper end cover 1, and gas enters and exits the inner support 3 through the ventilation hole 11. The upper end cover 1 and the lower end cover 2 play a role in protecting the filter paper 4. The diameters of the upper end cover 1 and the lower end cover 2 are larger than the diameter of the cylinder formed by the filter paper 4, which can reduce the probability of the filter paper 4 being squeezed and deformed. The inner support 3 is a metal mesh structure, and a plurality of through holes are provided on the inner support 3. Air can enter and exit the inner support 3 through the through holes. When the air flows through the through holes on the inner support 3, it can pass through the filter paper 4. The filter paper 4 plays a role in filtering solid particles in the air, achieving the effect of filtering air. The winding support 5 plays a role in supporting and protecting the filter paper 4, enabling the filter paper 4 to maintain a stable morphological structure.

[0035] Referring toFigure 1 , a connecting pipe 12 is provided on the upper end cover 1. The connecting pipe 12 is coaxially fixed with the upper end cover 1 and is used to communicate with other ventilation pipes.

[0036] Refer to Figure 2 , a positioning hole 21 is opened on the end face of the lower end cover 2 away from the inner support 3. The positioning hole 21 is a circular hole structure and is coaxially arranged with the lower end cover 2. The positioning hole 21 is used for clamping with other parts. When installing the filter by the user, by inserting other positioning parts into the positioning hole 21, the lower end cover 2 can be kept in a stable position, reducing the probability of the lower end cover 2 shaking or shifting in position, and enabling the filter to maintain better filtering performance.

[0037] Refer to Figure 2 , a plurality of card slots 22 are opened on the lower end cover 2. The card slots 22 are arranged at equal intervals along the circumference of the lower end cover 2 and are used for clamping with other positioning parts. When positioning parts are respectively clamped in the plurality of card slots 22, the lower end cover 2 is kept in a stable position and is difficult to rotate, further reducing the probability of vibration or shaking of the filter during operation and reducing the probability of the filter loosening at the installation position.

[0038] Refer to Figure 2 , the inner support 3 is made of metal mesh and has better structural strength. When installing the filter by the user, the filter needs to be inserted into the air inlet and outlet holes of the machine. During the process of inserting and removing the filter, the inner support 3 bears stress and maintains structural stability, thereby reducing the probability of the filter paper 4 being squeezed and damaged during the process of inserting and removing the filter.

[0039] Refer to Figure 3 , the filter paper 4 is made of cylindrical paper. The surface of the filter paper 4 is folded and has gaps. By folding the filter paper 4, the paper tube formed by the filter paper 4 has a larger surface area and a smaller diameter, thereby achieving the effect of streamlining the structure.

[0040] Refer to Figure 2 , the inner support 3 and the filter paper 4 are arranged in a frustum shape, and the diameter of the lower end cover 2 is smaller than that of the upper end cover 1. When air enters and exits through the ventilation holes 11 of the upper end cover 1, more solid particles in the air accumulate on the surface of the filter paper 4 on the side close to the upper end cover 1. By setting the frustum-shaped filter paper 4, the surface area of the filter paper 4 on the side close to the upper end cover 1 is larger, thereby streamlining the structure and size of the filter.

[0041] Refer to Figure 4, the winding support 5 is made of an elastic material, the winding support 5 is wound around the filter paper 4, the surface of the winding support 5 is coated with an adhesive, and the winding support 5 is fixedly adhered to the filter paper 4. The winding support 5 plays a role in supporting the filter paper 4, enabling the folded parts on the filter paper 4 to maintain a gap, thereby enabling the filter paper 4 to maintain better air permeability. When the air flow rate is large or the flow velocity is fast, the probability of deformation of the folded parts on the filter paper 4 can be reduced, enabling the filter paper 4 to maintain better filtering ability.

[0042] Refer to Figure 5 , in other embodiments, a plurality of grooves 121 are formed on the outer wall of the connecting pipe 12, and the grooves 121 are arranged at equal intervals along the circumference of the connecting pipe 12. The grooves 121 can improve the surface roughness of the connecting pipe 12, thereby facilitating the user to hold the connecting pipe 12 and insert and remove the filter. In other embodiments, a rubber sleeve is sleeved outside the connecting pipe 12, and the rubber sleeve is adhesively bonded or interference-fitted on the connecting pipe 12. The rubber sleeve is made of a rubber material with a rough surface, which can improve the roughness of the outer surface of the connecting pipe 12 and facilitate the user to install the filter when there is dust or oil on the hand.

[0043] The implementation principle of the embodiment of the present application is as follows: By respectively arranging the upper end cover 1 and the lower end cover 2 at both ends of the inner support 3, the upper end cover 1 and the lower end cover 2 can clamp and protect the filter paper 4. By inserting the inner support 3 into the middle of the filter paper 4, the inner support 3 plays a role in stabilizing the shape of the filter paper 4. By arranging the winding support 5 outside the filter paper 4, the winding support 5 plays a role in shaping the filter paper 4, enabling the folded parts on the filter paper 4 to maintain a gap and filter air.

[0044] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A filter, characterized in that: It includes an upper end cover (1), a lower end cover (2), an inner support (3), a filter paper (4) and a winding support (5). Through holes are provided on the inner support (3). The filter paper (4) is of a cylindrical structure. The inner support (3) is inserted into the filter paper (4). The upper end cover (1) and the lower end cover (2) are respectively connected to both ends of the inner support (3). The diameters of the upper end cover (1) and the lower end cover (2) are both larger than the diameter of the inner support (3). The winding support (5) is of a spring-shaped structure. The winding support (5) is sleeved outside the filter paper (4) and abuts against the filter paper (4). The surface of the filter paper (4) is folded to form a stacked structure, and there are gaps between the folded filter papers (4).

2. The filter according to claim 1, characterized in that: The winding support (5) is adhesively fixed to the filter paper (4).

3. The filter according to claim 1, wherein: A positioning hole (21) is provided on the lower end cover (2). The positioning hole (21) is a circular hole and is coaxially arranged relative to the lower end cover (2).

4. The filter according to claim 3, characterized in that: A plurality of card slots (22) are provided on the end face of the lower end cover (2). The card slots (22) are equidistantly spaced along the circumference of the lower end cover (2).

5. A filter according to claim 1, characterized in that: A connecting pipe (12) is provided on the upper end cover (1). The connecting pipe (12) is coaxially connected to the upper end cover (1). Ventilation holes (11) are provided on the upper end cover (1). The ventilation holes (11) are opened at the center of the circle of the upper end cover (1).

6. The filter according to claim 5, wherein: The inner support (3) and the filter paper (4) are arranged in a frustum structure, and the diameters of the inner support (3) and the filter paper (4) are smaller on the side close to the lower end cover (2).

7. A filter according to claim 5, characterized in that: A plurality of grooves (121) are provided on the outer wall of the connecting pipe (12).

8. A filter according to claim 5, characterized in that: A rubber sleeve is sleeved on the outer wall of the connecting pipe (12), and the rubber sleeve is made of a material with a rough surface.

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