CN109236510B

CN109236510B - Dual-purpose combined filter

Info

Publication number: CN109236510B
Application number: CN201811138278.XA
Authority: CN
Inventors: 高阳
Original assignee: Foshan Leopard King Haisha Filter Co Ltd
Current assignee: Foshan Leopard King Haisha Filter Co Ltd
Priority date: 2018-09-28
Filing date: 2018-09-28
Publication date: 2020-01-14
Anticipated expiration: 2038-09-28
Also published as: CN109236510A

Abstract

The invention discloses a dual-purpose combined filter, which comprises a shell and a filter element, wherein the filter element comprises an upper end cover, a lower end cover, a first mounting ring, a second mounting ring and a filter body, the upper end cover is connected with the upper shell through the first mounting ring, the lower end cover is connected with the lower shell through the second mounting ring, the filter body is clamped between the upper end cover and the lower end cover, four layers of check rings are respectively and correspondingly arranged on the upper end cover and the lower end cover from outside to inside, and the four layers of check rings separate the filter body. The dual-purpose combined filter can be used as an air filter and an air conditioner filter, and has strong product universality; manufacturers can produce the air filter and the air-conditioning filter through one production line, so that the production cost is greatly reduced; the multiple check rings are adopted to position the filter body, so that the filter body is prevented from shifting and deforming, the service life of the filter body is prolonged, and the use cost of the filter is reduced; the upper end cover and the lower end cover are connected to the shell, so that the end covers do not need to be taken out along with the filter body during loading and unloading, and the loading and unloading are convenient.

Description

Dual-purpose combined filter

Technical Field

The invention relates to the technical field of automobile accessories, in particular to a dual-purpose combined filter.

Background

The filter can be divided into an oil filter, a fuel filter, an air filter and an air conditioner filter according to different functions, and is respectively used for filtering a lubricating system, a combustion system, an engine air inlet system and an air circulating system in the car, so that the service life of each component in the automobile engine can be prolonged, the fuel heat value can be efficiently utilized, the safe driving of a driver can be guaranteed, and the air quality in the car can be improved. In view of different purposes of various filters, different filters on the market can only filter corresponding media, and when an emergency occurs, the filters of different types cannot be replaced with each other to solve the problem, so that the product universality is poor; the manufacturer needs to adopt different production lines to produce different types of filters, so that the production cost is high; the existing filter element of the filter is formed by gluing a filter body and an end cover, when the filter element fails, the whole filter element needs to be replaced, so that great waste is caused, and partial technicians adopt a mode of clamping the filter body on the end cover to improve the current situation, but in the mode, the end cover is only provided with a stop block on the outer ring, so that the positioning is insufficient, when the fluid pressure is overlarge, the filter body is easy to shift to a hollow pipe in the center of the filter body, deform and even fail, and the use cost of the filter element is higher; when the filter body is invalid, the filter body and the end cover need to be taken out together, and the filter body is installed in the inner cavity of the filter after being assembled, so that the assembly and disassembly are inconvenient.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the dual-purpose combined filter which has strong universality, stable positioning and simple assembly and disassembly.

In order to achieve the purpose, the invention provides the following technical scheme:

a dual-purpose combined filter comprises a shell and a filter element, wherein the shell comprises an upper shell and a lower shell, the upper shell and the lower shell are connected to form a cavity, the filter element is arranged in the cavity and is of a hollow cylindrical structure, the outer side wall of the filter element and the inner wall of the shell form an air inlet channel of the dual-purpose combined filter, the center of the filter element forms an air outlet channel of the dual-purpose combined filter, the lower shell is provided with an air inlet corresponding to the air inlet channel, the upper shell is provided with an air outlet corresponding to the air outlet channel, the filter element comprises an upper end cover, a lower end cover, a first mounting ring, a second mounting ring and a filter body, the upper end cover and the lower end cover are both circular discs, the center of the upper end cover is provided with a through hole, the upper end cover is elastically connected to the first mounting ring, the first mounting ring is connected to the upper shell, the lower end cover is elastically connected to the second mounting ring, the second mounting ring, the upper end cover is provided with four layers of check rings from outside to inside, the lower end cover is provided with four layers of check rings from outside to inside, three containing spaces are formed between the four layers of check rings of the upper end cover and the four layers of check rings of the lower end cover, and the three filtering layers are respectively arranged in the three containing spaces.

Furthermore, an elastic rubber tube and a positioning spring arranged in the elastic rubber tube are arranged between the upper end cover and the first mounting ring as well as between the lower end cover and the second mounting ring, the upper end cover is connected to the first mounting ring through the elastic rubber tube and the positioning spring, and the lower end cover is connected to the second mounting ring through the elastic rubber tube and the positioning spring.

Further, the first mounting ring is connected to the upper shell through threads, and the second mounting ring is connected to the lower shell through threads.

Furthermore, the filter element also comprises a first sealing layer and a second sealing layer, wherein the first sealing layer is arranged between the upper end cover and the filter body and is adhered to the upper end cover, and the second sealing layer is arranged between the lower end cover and the filter body and is adhered to the lower end cover.

Furthermore, an annular air duct partition plate is arranged between the upper end cover outer ring and the upper shell, and C-shaped sealing rings are arranged at the joints of the annular air duct partition plate, the upper end cover outer ring and the inner wall of the upper shell.

Furthermore, the three filter layers are all activated carbon filter paper layers.

Furthermore, the three filter layers are filter paper layers with the pore sizes decreasing in sequence.

Furthermore, an adapter tube is arranged at the air outlet and is in threaded connection with the air outlet.

Compared with the prior art, the invention can obtain the following technical effects:

the dual-purpose combined filter can be used as an air filter and an air conditioner filter, when the air filter breaks down, the air conditioner filter can be temporarily taken down to replace the air filter, the safe driving of an automobile is guaranteed, and the product universality is high; manufacturers can produce the air filter and the air-conditioning filter through one production line, so that the production cost of enterprises is greatly reduced; the multiple check rings are adopted to position the filter body, so that the filter body is prevented from shifting and deforming, the service life of the filter body is prolonged, and the use cost of the filter is reduced; the upper end cover and the lower end cover are connected to the shell, so that the end covers do not need to be taken out along with the filter body during loading and unloading, and the loading and unloading are convenient.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a cross-sectional view of a dual-purpose combination filter according to an embodiment of the present invention.

Fig. 2 is a cross-sectional view of a dual use combination filter according to another embodiment of the present invention.

Fig. 3 is a schematic view of a filter cartridge of the present invention.

Detailed Description

Embodiments of the invention are illustrated in the drawings and, for purposes of clarity, numerous implementation details are set forth in the following description. It should be understood, however, that these implementation details are not to be interpreted as limiting the invention. That is, in some embodiments of the invention, such implementation details are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.

It should be noted that all the directional indications such as up, down, left, right, front and rear … … in the embodiment of the present invention are only used to explain the relative positional relationship, movement, etc. between the components in a specific posture as shown in the drawings, and if the specific posture is changed, the directional indication is changed accordingly.

In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between the various embodiments can be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not be within the protection scope of the present invention.

Example 1

The invention provides a dual-purpose combined filter, which is applied to the technical field of automobile accessories and is used for filtering impurities in an automobile air conditioning system. Referring to fig. 1 and 3, as shown in the figures, the dual-purpose combined air cleaner of the present invention comprises a housing 1 and a filter element 2, wherein the housing 1 comprises an upper shell 11 and a lower shell 12, the upper shell 11 is connected with the lower shell 12 to form a cavity 13, the filter element 2 is disposed in the cavity 13, the filter element 2 is a hollow cylindrical structure, an air inlet duct 3 of the dual-purpose combined air cleaner is formed by the outer side wall of the filter element 2 and the inner wall of the housing 1, an air outlet duct 4 of the dual-purpose combined air cleaner is formed by the center of the filter element 2, the lower shell 12 is provided with an air inlet 121 corresponding to the air inlet duct 3, the upper shell 11 is provided with an air outlet 111 corresponding to the air outlet duct 4, air in an automobile resonance box enters the air inlet duct 3 to contact with the outer side wall of the filter element 2 after entering the dual-purpose combined air cleaner through the air inlet 121, at this time, fresh and clean air is provided for drivers and passengers in the lift car, and meanwhile, impurities are effectively prevented from being combined with water vapor generated by the breathing of the drivers and passengers as condensation nuclei to form water mist on vehicle windows, so that the sight of the drivers is interfered, and the safe driving of the drivers is ensured.

The filter element 2 comprises an upper end cover 21, a lower end cover 22, a first mounting ring 23, a second mounting ring 24 and a filter body 25, wherein the upper end cover 21 and the lower end cover 22 are discs, a through hole is formed in the center of the upper end cover 21 and connected with an exhaust port 111 to guide clean air, and the lower end cover 22 separates an air inlet duct 3 and an exhaust duct 4 to prevent unfiltered air from being mixed with the clean air and affecting the filtering effect. The upper end cover 21 is elastically connected to the first mounting ring 23, the first mounting ring 23 is connected to the upper shell 11, the lower end cover 22 is elastically connected to the second mounting ring 24, the second mounting ring 24 is connected to the lower shell 12, and the filter body 25 is clamped between the upper end cover 21 and the lower end cover 22. The upper end cover 21 is connected to the upper shell 11 through the first mounting ring 23, the lower end cover 22 is connected to the lower shell 12 through the second mounting ring 24, when the filter 25 is assembled and disassembled, the filter 25 is only required to be taken out for replacement, the process of disassembling and assembling the upper end cover 21 and the lower end cover 22 is omitted, and the assembly and disassembly are simple. The filtering body 25 is composed of three filtering layers 251 which are sequentially sleeved from outside to inside, and the three filtering layers 251 are used for carrying out multiple filtering on the air introduced into the dual-purpose combined filter, so that impurities and toxic and harmful substances in the air are effectively removed. Four layers of retainer rings 26 are arranged from outside to inside on the upper end cover 21, four layers of retainer rings 26 are arranged from outside to inside on the lower end cover 22, three accommodating spaces 261 are formed between the four layers of retainer rings 26 of the upper end cover 21 and the four layers of retainer rings 26 of the lower end cover 22, and three layers of filter layers 251 are respectively arranged in the three accommodating spaces 261. The four layers of the retainer rings 26 are used for positioning the filter layer 251 repeatedly, so that the filter layer 251 is prevented from shifting to the center and deforming or even being damaged and invalid under the impact of wind pressure when the wind pressure is too large, and the service life of the filter body 25 is effectively prolonged.

Furthermore, an elastic rubber tube 27 and a positioning spring 28 arranged in the elastic rubber tube 27 are arranged between the upper end cover 21 and the first mounting ring 23, and between the lower end cover 22 and the second mounting ring 24, the upper end cover 21 is connected to the first mounting ring 23 through the elastic rubber tube 27 and the positioning spring 28, and the lower end cover 22 is connected to the second mounting ring 24 through the elastic rubber tube 27 and the positioning spring 28. When the filter 25 is failed, the upper shell 11 and the lower shell 12 are separated, the filter 25 is naturally separated from the upper end cover 21 and the lower end cover 22 and can be detached, when a new filter 25 is installed, the filter 25 can be clamped in the four layers of check rings 26 between the upper end cover 21 and the lower end cover 22 to tightly press the upper shell 11 and the lower shell 12, so that the elastic rubber cylinder 27 and the positioning spring 28 are compressed to realize the tight connection of the upper shell 11 and the lower shell 12, in this way, the upper end cover 21 and the lower end cover 22 do not need to be assembled and disassembled, the operation is simple and convenient, the filter 25 is tightly pressed through elasticity, dislocation and movement do not occur, and the positioning is stable.

Further, the first mounting ring 23 is screw-coupled to the upper case 11, and the second mounting ring 24 is screw-coupled to the lower case 12. When the upper end cover 21 or the lower end cover 22 is damaged, the first mounting ring 23 or the second mounting ring 24 can be screwed down for replacement, and the operation is simple.

Further, the filter element 2 further includes a first sealing layer 29a and a second sealing layer 29b, the first sealing layer 29a is disposed between the upper end cover 21 and the filter body 25 and is adhered to the upper end cover 21, and the second sealing layer 29b is disposed between the lower end cover 22 and the filter body 25 and is adhered to the lower end cover 22. The first sealing layer 29a and the second sealing layer 29b are used to prevent unfiltered air from entering the exhaust duct 4 along the gaps at the joints of the upper end cover 21 and the lower end cover 22 and the filter body 25 to pollute clean air and reduce the influence on the filtering effect, and prevent the problem that the air pressure in the air inlet duct 3 is reduced and the speed of the air passing through the filter body 25 is reduced to reduce the filtering efficiency when the sealing is insufficient.

Furthermore, an annular air duct partition plate 14 is arranged between the outer ring of the upper end cover 21 and the upper shell 11, the joints of the annular air duct partition plate 14, the outer ring of the upper end cover 21 and the inner wall of the upper shell 11 are provided with C-shaped sealing rings 141, the annular air duct partition plate 14 separates the air inlet duct 3 from the air exhaust duct 4, so that unfiltered air is prevented from being mixed with clean air, the filtering effect is prevented from being influenced, the air pressure in the air inlet duct 3 and the air exhaust duct 4 is ensured to be constant by using the C-shaped sealing rings 141, and stable air filtering of the dual-purpose combined filter is ensured.

Further, the three filter layers 251 are all activated carbon filter paper layers 2511. The activated carbon filter paper layer 2511 can effectively filter solid particles in the air, and the solid particles with large particle size are trapped on one side of the activated carbon filter paper layer 2511; meanwhile, the activated carbon particles in the activated carbon filter paper layer 2511 adsorb toxic and harmful substances in the air, and silver ions and tea polyphenol in the activated carbon filter paper layer 2511 effectively kill bacteria in the air, so that the bacteria breeding in the car cage is prevented, the health of drivers and passengers is damaged, and in specific practice, different types of filter layers can be selected according to different air quality requirements, and the details are not repeated.

Example 2

The invention provides a dual-purpose combined filter, which is applied to the technical field of automobile accessories and is used for filtering impurities in air in an automobile engine so as to reduce the abrasion of impurity particles to all parts in a cylinder. Referring to fig. 2 and fig. 3, as shown in the figure, the difference between the present embodiment and embodiment 1 is:

in this embodiment, the three-layer filter layer 251 is the filter paper layer 2512 with the sequentially decreasing pore sizes, and the multi-layer filter paper layers 2512 with different pore sizes are used for filtering, so that the problems of insufficient impurity filtering caused by the adoption of the large-pore-size filter paper layer 2512, the serious problem of piston abrasion and the problem of filter hole plugging caused by the adoption of the small-pore-size filter paper layer 2512 are solved, the air volume and the air pressure of the filter paper layer 2512 are small, and the problems of sufficient air and the like cannot be timely and effectively provided for the combustion of mixed fuel oil gas.

Furthermore, an adapter tube 5 is arranged at the air outlet 111, and the adapter tube 5 is connected with the air outlet 111 through threads. The use of the adapter tube 5 effectively solves the problem that the air outlets 111 of the air conditioner filter and the air filter are different in diameter and are difficult to be suitable for production on the same production line in actual production, and the dual-purpose combined filter can be connected with ventilation pipes of different sizes through the adapter tube.

The specific implementation manner of this embodiment is, after the air in the car resonance box passes through air intake 121 and lets in dual-purpose combined filter, get into air inlet 3 and filter element 2 lateral wall contact and pass three-layer filter paper layer 2512 that aperture size diminishes in proper order, solid particle and other impurity are held back in filter paper layer 2512 one side this moment, clean air is worn out by filter paper layer 2512 and is sent to the engine cylinder along exhaust duct 4 via air exit 111, provide the condition for the burning of mixed fuel gas in the cylinder, effectively dilute mixed fuel gas, avoid the waste that mixed fuel gas concentration is too high, incomplete burning caused, reduce the wearing and tearing of solid particulate matter to the piston simultaneously, extension piston life. When one of the filter layers 251 in the filter body 25 is damaged and a driver cannot find the damage, the other two filter layers 251 can work normally, and the filtering effect is ensured. When the filter 25 is failed, the upper shell 11 and the lower shell 12 are separated, the filter 25 is naturally separated from the upper end cover 21 and the lower end cover 22 and can be detached, when a new filter 25 is installed, the filter 25 can be clamped in the four layers of check rings 26 between the upper end cover 21 and the lower end cover 22 to tightly press the upper shell 11 and the lower shell 12, so that the elastic rubber cylinder 27 and the positioning spring 28 compress the upper shell 11 and the lower shell 12 to be tightly connected, and the installation of the filter 25 is realized. Because the filter 25 is a plurality of filter paper layers 2512 respectively clamped between the upper end cover 21 and the lower end cover 22, the filter can be selectively replaced according to the use conditions of different filter paper layers 2512 in the filtering process, and the utilization rate of the filter paper layers 2512 is greatly improved.

Because the two dual-purpose combined filters related to the embodiment 1 and the embodiment 2 have basically the same structure, in the actual production, the filter suitable for air filtration and air conditioning filtration can be produced by arranging one production line, and the production cost is greatly saved; in the automobile driving process, if the air filter is damaged or blocked under the accident condition to cause that the engine cannot normally work, the detachable air-conditioning filter can temporarily replace the air filter, so that the safe driving of the automobile is ensured.

In summary, in one or more embodiments of the present invention, the dual-purpose combined filter of the present invention can be used as an air filter and an air conditioner filter, and when the air filter fails, the air conditioner filter can be temporarily taken down to replace the air filter, so as to ensure safe driving of the vehicle, and the product has strong versatility; manufacturers can produce the air filter and the air-conditioning filter through one production line, so that the production cost of enterprises is greatly reduced; the multiple check rings are adopted to position the filter body, so that the filter body is prevented from shifting and deforming, the service life of the filter body is prolonged, and the use cost of the filter is reduced; the upper end cover and the lower end cover are connected to the shell, so that the end covers do not need to be taken out along with the filter body during loading and unloading, and the loading and unloading are convenient.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A dual-purpose combined filter is characterized by comprising a shell and a filter element, wherein the shell comprises an upper shell and a lower shell, the upper shell and the lower shell are connected to form a cavity, the filter element is arranged in the cavity and is of a hollow cylindrical structure, an air inlet channel of the dual-purpose combined filter is formed by the outer side wall of the filter element and the inner wall of the shell, an air outlet channel of the dual-purpose combined filter is formed by the center of the filter element, an air inlet corresponding to the air inlet channel is formed in the lower shell, an air outlet corresponding to the air outlet channel is formed in the upper shell, the filter element comprises an upper end cover, a lower end cover, a first mounting ring, a second mounting ring and a filter body, the upper end cover and the lower end cover are both circular discs, a through hole is formed in the center of the upper end cover, the upper end cover is elastically connected to the first mounting ring, the first mounting ring is connected to the upper shell, the filter body comprises three filter layers which are sequentially sleeved from outside to inside, the upper end cover is provided with four retaining rings from outside to inside, the lower end cover is provided with four retaining rings from outside to inside, three accommodating spaces are formed between the four retaining rings of the upper end cover and the four retaining rings of the lower end cover, and the three filter layers are respectively arranged in the three accommodating spaces.

2. The dual-purpose combined filter as recited in claim 1, wherein an elastic rubber tube and a positioning spring are disposed between the upper cover and the first mounting ring, and between the lower cover and the second mounting ring, the upper cover is connected to the first mounting ring through the elastic rubber tube and the positioning spring, and the lower cover is connected to the second mounting ring through the elastic rubber tube and the positioning spring.

3. The dual-purpose combination filter of claim 1, wherein the first mounting ring is threadably attached to the upper housing and the second mounting ring is threadably attached to the lower housing.

4. The dual-purpose combination filter of claim 1, wherein the filter element further comprises a first sealing layer disposed between and bonded to the upper end cap and a second sealing layer disposed between and bonded to the lower end cap and the filter body.

5. The dual-purpose combined filter as recited in claim 1, wherein an annular air duct partition is provided between the outer ring of the upper end cap and the upper housing, and C-shaped sealing rings are provided at the joints of the annular air duct partition, the outer ring of the upper end cap and the inner wall of the upper housing.

6. The dual-purpose combination filter of claim 1, wherein the three filter layers are all activated carbon filter paper layers.

7. The dual-purpose combined filter as recited in claim 1, wherein the three filter layers are filter paper layers having successively decreasing pore sizes.

8. The dual-purpose combined filter as recited in claim 1, wherein the air outlet is provided with a transition pipe, and the transition pipe is connected with the air outlet by a screw thread.