Filter device convenient to disassemble

Abstract

The utility model relates to a filter device convenient to disassemble, which comprises a filter screen and a filter screen outer cover, the filter screen outer cover is of a cylindrical structure, two ends of the filter screen outer cover are respectively and fixedly connected with an air outlet end of a first component and an air inlet end of a second component, the filter screen is fixedly arranged on the filter screen outer cover, an opening is arranged on the side wall of the filter screen outer cover, and the opening is communicated with the filter screen outer cover. A cover plate capable of being opened and closed is installed at the opening, and when the cover plate is closed, the opening is sealed by the cover plate. The air inlet end of the air using equipment is connected with the air outlet end of the air supply equipment through the filter screen outer cover of the cylindrical structure, enough operation space is provided for cleaning of the filter screen, the filter screen outer cover is matched with the cover plate capable of being opened and closed, normal work of the air using equipment cannot be affected, cleaning of the filter screen is convenient, the filter screen cleaning efficiency is improved, the number of detached parts is small, and cost is low. The labor intensity of workers can be reduced, and meanwhile the risk of bolt slipping caused by frequent bolt disassembly and assembly can be avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of filtering equipment, and particularly relates to a detachable filtering device. Background Art

[0002] The EMU is powered by traction motors, which use forced air cooling to dissipate heat, requiring a blower to provide flowing air. To prevent foreign matter from entering the traction motor, a filter is generally installed at the air inlet of the traction motor, which needs to be cleaned regularly.

[0003] However, at present, when disassembling and assembling the traction motor filter, it is very inconvenient to clean it due to the small disassembly space and the large number of disassembly and assembly bolts, which greatly affects the cleaning efficiency. At the same time, since the filter needs to be cleaned regularly and the bolts are frequently disassembled and assembled, there is a risk of bolt stripping. Utility Model Content

[0004] The main technical problem solved by the utility model is to provide a detachable filtering device, which is convenient for disassembling and cleaning the filter screen, thereby improving the cleaning efficiency of the filter screen and avoiding the risk of bolt stripping caused by frequent disassembly and assembly of bolts.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0006] A detachable filtering device comprises a filter and a filter cover, wherein the filter cover is a cylindrical structure, and its two ends are respectively fixedly connected to the air outlet end of a first component and the air inlet end of a second component, the filter is fixedly mounted on the filter cover, an opening is arranged on the side wall of the filter cover, and an openable and closable cover is mounted at the opening, and when closed, the cover closes the opening, one end of the cover is rotatably connected to the filter cover via a rotating shaft, and the other end of the cover is detachably connected to the filter cover via a connecting shaft.

[0007] Furthermore, a first mounting edge and a second mounting edge protruding outward are respectively provided at both ends of the cylindrical body of the filter outer cover, and a plurality of first mounting holes and a plurality of second mounting holes are respectively opened on the first mounting edge and the second mounting edge, and the first mounting edge and the second mounting edge are respectively fixedly connected to the corresponding first component and the second component through fasteners.

[0008] Furthermore, short bolts are used as fasteners to fix the first mounting edge and the second mounting edge to the first component and the second component. Threaded holes matching the short bolts are respectively arranged on the end face of the air outlet end of the first component and the end face of the air inlet end of the second component. The installation directions of the short bolts installed on the first mounting edge and the second mounting edge are opposite.

[0009] Furthermore, two groups of through holes are correspondingly arranged on the first mounting edge and the second mounting edge, in which a first long bolt is installed in one group of through holes, and the first long bolt is used as a rotating shaft to be rotatably connected to the cover plate, and a second long bolt is installed in the other group of through holes, and the second long bolt is used as a connecting shaft to be detachably connected to the cover plate. After the second long bolt is removed, the cover plate can be rotated around the first long bolt to achieve opening of the cover plate.

[0010] Furthermore, at least one connecting edge protruding outwardly from the outer surface of the cover plate is provided on the outer surface of the cover plate, and the connecting edge is arranged along the length direction of the outer surface of the cover plate. A first axial hole for passing the rotating shaft is provided at one end of the connecting edge, and a second axial hole for passing the connecting shaft is provided at the other end of the connecting edge.

[0011] Furthermore, the connecting edges are provided with two parallel ones, and the two connecting edges are respectively installed at the upper and lower side edges of the cover plate.

[0012] Further, the filter is clamped and fixedly installed between the end of the filter cover and the air outlet end of the first component or the air inlet end of the second component; or, the filter is fixedly installed inside the filter cover by a fastener or a snap-on structure.

[0013] Furthermore, the length of the opening in the circumferential direction of the cross section of the filter cover is at least 1 / 2 of the total circumferential length.

[0014] Furthermore, the first component is an air duct, and the second component is a traction motor.

[0015] In summary, the detachable filter device provided by the utility model has the following advantages compared with the prior art:

[0016] (1) The utility model utilizes a cylindrical filter cover to connect the air inlet end of the air-using device with the air outlet end of the air-supplying device, which is convenient for opening the side wall of the filter cover for cleaning tools and operators to insert their hands into the interior, thereby providing sufficient operating space for cleaning the filter. When combined with an openable and closable cover, the utility model will not affect the normal operation of the air-using device, but will facilitate the cleaning of the filter and improve the cleaning efficiency of the filter. In addition, there is no need to remove the bolts connecting the air-using device and the air-supplying device, and fewer parts need to be removed, which can reduce the labor intensity of the staff and also avoid the risk of bolt thread slippage due to frequent disassembly and assembly of the bolts.

[0017] (2) In the present invention, the cover is rotatably connected to the filter cover via a rotating shaft, and is detachably connected to the filter cover via a connecting shaft. The cover can be rotated around the rotating shaft at the other end by simply removing the connecting shaft, thereby opening the cover to expose the opening. This is not only simple and convenient to operate, but also does not require a separate place to store the cover.

[0018] The specific implementation of the utility model is further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0020] In the attached picture:

[0021] Figure 1 It is a structural schematic diagram of the filter device of the utility model (the cover is opened);

[0022] Figure 2 This is a schematic diagram of the structure of the filter device of the utility model. Figure 1 (Cover closed state);

[0023] Figure 3 This is a schematic diagram of the structure of the filter device of the utility model. Figure 2 (Cover closed).

[0024] In the figure:

[0025] Filter 1, frame 11, mesh body 12, filter cover 2, cylindrical body 21, first mounting edge 22, second mounting edge 23, short bolt 24, through hole 25, opening 3, cover plate 4, connecting edge 41, second shaft hole 42, rotating shaft 5, connecting shaft 6, first long bolt 7, second long bolt 8.

[0026] It should be noted that the drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0028] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] like Figures 1 to 3 As shown, the utility model provides a detachable filter device, which is installed at the air inlet end of the traction motor of the rail vehicle, and the other end is connected to the air outlet end of the air supply duct of the blower, and is used to filter the cold air sent by the blower, and then send it to the traction motor to cool the traction motor. The filter device can also be used on other air-using equipment, connecting the air outlet end of the air supply equipment with the air inlet end of the air-using equipment.

[0031] The detachable filter device provided in this embodiment includes a filter screen 1 and a filter screen cover 2. The main body of the filter screen cover 2 is a cylindrical structure. The filter screen 1 is fixedly mounted on the filter screen cover 1. The two ends of the filter screen cover 2 are respectively fixedly connected to the air outlet end of the first component and the air inlet end of the second component. In this embodiment, the first component is an air supply device, specifically an air supply duct of a blower, and the second component is an air-using device, specifically a traction motor. The air blown out by the blower enters the traction motor after being filtered by the filter screen 1.

[0032] In this embodiment, an opening 3 is provided on the side wall of the cylindrical body 21 of the filter outer cover 2, and an openable and closable cover plate 4 is installed at the opening 3. When closed, the cover plate 4 closes the opening 3. When the cover plate 4 is opened, the opening 3 is opened, thereby exposing the internal filter 1 to the outside, making it convenient for the operator to clean the debris on the filter 1.

[0033] The filter cover 2 with a cylindrical structure is used to connect the air inlet end of the traction motor with the air outlet end of the air supply duct, which is convenient for opening an opening 3 on the side wall of the filter cover 2 for cleaning tools and operators to insert their hands into the interior, providing sufficient operating space for cleaning the filter 1. In conjunction with the openable and closable cover 4, it will not affect the normal operation of the traction motor, but also facilitates the cleaning of debris on the filter 1, thereby improving the filter cleaning efficiency. In addition, there is no need to remove the bolts connecting the traction motor and the air supply duct, and fewer parts need to be removed, which can reduce the labor intensity of the staff. At the same time, it can also avoid the risk of bolt stripping due to frequent disassembly and assembly of bolts, thereby ensuring the normal operation of air-using equipment.

[0034] In this embodiment, preferably, one end of the cover plate 4 is rotatably connected to the filter cover 2 via a rotating shaft 5, and the other end of the cover plate 4 is detachably connected to the filter cover 2 via a connecting shaft 6. This structure is simple and convenient to operate, and only the connecting shaft 6 at one end of the cover plate 4 needs to be removed, and the cover plate 4 can be rotated around the rotating shaft 5 at the other end to expose the opening 3, without removing the bolts used to connect the traction motor and the air supply duct, and the cover plate 4 does not need to be stored elsewhere.

[0035] In order to facilitate the fixed connection between the filter cover 2 and the traction motor and the air supply duct, it is preferred in this embodiment that a first mounting edge 22 protruding outward is provided at one end of the cylindrical body 21 of the filter cover 2, and a second mounting edge 23 protruding outward is provided at the other end, the first mounting edge 22 and the second mounting edge 23 are parallel to each other and perpendicular to the outer surface of the cylindrical body 21, and the first mounting edge 22 and the second mounting edge 23 are arranged in a ring shape around the circumference of the two open ends of the cylindrical body 21. Arranging the first mounting edge 22 and the second mounting edge 23 on the outside of the cylindrical body 21 is not only convenient for installation, but also ensures smooth air flow in the cylindrical body 21, and does not increase the flow resistance between the air duct and the traction motor.

[0036] A plurality of first mounting holes (not shown in the figure) are opened on the first mounting edge 22, and a plurality of second mounting holes (not shown in the figure) are opened on the second mounting edge 23. The first mounting holes and the second mounting holes can be arranged relative to each other or staggered, as long as they correspond to the mounting holes on the corresponding components. In the present embodiment, a one-to-one corresponding arrangement is preferably adopted to reduce the difficulty of installation and avoid errors.

[0037] The first mounting edge 22 is fixedly connected to the outlet end of the air supply duct by fasteners, and the second mounting edge 23 is also fixedly connected to the air inlet end of the traction motor by fasteners. After connection, the first mounting edge 22 and the second mounting edge 23 are respectively closely connected to the outlet end face of the air supply duct and the air inlet end face of the traction motor to avoid air leakage at the connection. A layer of annular sealing gasket can also be installed at the connection to improve the sealing effect of the connection.

[0038] In this embodiment, the fasteners used to fix the first mounting edge 22 and the second mounting edge 23 to the air supply duct and the traction motor are preferably short bolts 24. The air inlet end surface of the traction motor and the air outlet end surface of the air supply duct are respectively provided with threaded holes that match the short bolts 24. The installation directions of the short bolts 24 used to install the first mounting edge 22 and the second mounting edge 23 are opposite. The distance between the first mounting edge 22 and the second mounting edge 23 is just the installation space for the short bolts 24.

[0039] In this embodiment, in order to facilitate the installation of the filter 1 , the filter 1 is preferably installed at one end of the filter cover 2 connected to the air inlet end of the traction motor, and is installed on the outside of the filter cover 2 .

[0040] The filter 1 is composed of a frame 11 and a mesh body 12 in the middle. A mounting hole (not shown) is also provided on the frame 11 corresponding to the second mounting hole on the second mounting edge 23. During installation, the filter 1 can be fixedly installed on the end of the filter cover 2 while installing the second mounting edge 23 using short bolts 24. The filter 1 is clamped and fixedly installed between the end of the filter cover 2 and the air inlet end of the traction motor. The installation method of the filter 1 is simple in structure and easy to operate, and there is no need to provide an additional mounting structure on the filter cover 2 for fixing the filter 1.

[0041] Another embodiment can be used to install the filter 1 . The filter 1 is installed inside the filter cover 2 by fasteners such as screws or by a snap-fit ​​structure. The filter 1 can be disassembled and installed from the opening 3 .

[0042] In this embodiment, it is also preferred that two groups of through holes 25 are correspondingly provided on the first mounting edge 22 and the second mounting edge 23, and the first long bolts 7 are installed in one group of through holes 25, and the second long bolts 8 are installed in the other group of through holes 25. The two groups of through holes 25 can directly utilize the two first mounting holes and the second mounting holes opened on the first mounting edge 22 and the second mounting edge 23.

[0043] The first long bolt 7 is used as the rotating shaft 5 to be rotatably connected to the cover plate 4, and the second long bolt 8 is used as the connecting shaft 6 to be detachably connected to the cover plate 4. After the second long bolt 8 is removed, the cover plate 4 can be rotated around the first long bolt 7 to open the cover plate 4. While the first long bolt 7 and the second long bolt 8 play the role of the rotating shaft 5 and the connecting shaft 6, they also pass through the mounting holes on the end face of the air outlet end of the air supply duct, and are threadedly connected to the threaded holes on the end face of the air inlet end of the traction motor, thereby further fixing the filter cover 2 to the traction motor and the air supply duct.

[0044] In this embodiment, it is further preferred that at least one connecting edge 41 protruding outwardly perpendicular to the outer surface of the cover plate 4 is provided on the outer surface of the cover plate 4, and the connecting edge 41 is provided along the length direction of the outer surface of the cover plate 4, and a first shaft hole (not shown in the figure) for passing the rotating shaft 5 (i.e., the first long bolt 7) is provided at one end of the connecting edge 41, and a second shaft hole 42 for passing the connecting shaft 6 (i.e., the second long bolt 8) is provided at the other end of the connecting edge 41. The provision of the connecting edge 41 not only provides an interface for installing the rotating shaft 5 and the connecting shaft 6, but also helps to improve the structural strength of the cover plate 4, and ensures that the cover plate 4 will not be deformed after long-term use.

[0045] In this embodiment, it is further preferred that two parallel connecting edges 41 are provided, and the two connecting edges 41 are respectively installed at the upper and lower side edges of the cover plate 4. A first axial hole and a second axial hole are correspondingly provided on the two connecting edges 41.

[0046] In order to ensure that the opening 3 can be sealed when the cover plate 4 is in the closed state, in the present embodiment, it is also preferred that a sealing ring (not shown in the figure) is installed on the filter cover 2 at the opening 3, and the cover plate 4 is pressed against the sealing ring to achieve a sealed connection after being closed.

[0047] According to the shape of the air inlet end of the traction motor, in this embodiment, the cross-section of the cylindrical body 21 of the filter cover 2 is rectangular, the cross-sectional size of the cylindrical body 21 matches the cross-sectional size of the air inlet end of the traction motor, and the first mounting edge 22 and the second mounting edge 23 are both rectangular rings.

[0048] In this embodiment, in order to ensure that the opening 3 has a sufficient area for the operator to clean the internal filter 1, the length of the opening 3 in the circumferential direction of the cross-section of the filter cover 2 is at least 1 / 2 of the total circumferential length. For the rectangular filter cover 2, the first long bolt 7 and the second long bolt 8 are diagonally arranged at the two corners of the diagonal line, and the opening 3 and the cover plate 4 are both L-shaped. Four short bolts 24 are respectively arranged at the other two diagonal positions and the middle position of the first mounting edge 22 and the second mounting edge 23, so that the filter cover 2 can be fixedly connected to the air supply duct and the traction motor by six bolts, thereby ensuring a firm and reliable connection.

[0049] Of course, the cross-sectional shape of the cylindrical body 21 of the filter cover 2 can also be square or circular. For a cube, the first long bolt 7 and the second long bolt 8 are also arranged diagonally. For a circle, the first long bolt 7 and the second long bolt 8 can be respectively arranged at both ends on the diameter.

[0050] The working principle of the detachable filter device is as follows:

[0051] When installing the filter 1 and the filter cover 2, the filter 1 is placed at one end of the filter cover 2, and the first mounting edge 22 is fixedly connected to the four corresponding threaded holes on the end face of the air supply duct outlet end by using four short bolts 24. At the same time, the second mounting edge 23 and the frame 11 of the filter 1 are fixedly connected to the four corresponding threaded holes on the end face of the air supply duct inlet end by using another four short bolts 24; the first long bolt 7 and the second long bolt 8 are respectively inserted through the two corresponding threaded holes on the end face of the air supply duct outlet end, and pass through the two through holes 25 on the first mounting edge 22, the first axial hole and the second axial hole on the two connecting edges 41 on the cover plate 4, and the two through holes 25 on the second mounting edge 23, and finally fixedly connected to the two corresponding threaded holes on the end face of the air supply duct inlet end.

[0052] The wind from the air duct of the traction motor blower is blown into the air inlet end of the traction motor through the filter cover 2 and the filter 1 to cool the traction motor, and the filter 1 blocks foreign matter in the wind.

[0053] When the filter 1 needs to be cleaned, the second long bolt 8 is removed from the filter cover 2, and the cover plate 4 can rotate around the first long bolt 7 to expose the opening 3 to the outside, so that the operator can remove the foreign matter accumulated in the filter 1.

[0054] When the cover 4 needs to be closed after cleaning, the cover 4 is rotated around the first long bolt 7 until the opening 3 is closed, and then the second long bolt 8 is inserted from the corresponding threaded hole on the end face of the air outlet end of the air supply duct, and passes through the through hole 25 on the first mounting edge 22, the second axial holes on the two connecting edges 41 of the cover 4, and the through hole 25 on the second mounting edge 23 in sequence, and finally fixedly connected with the corresponding threaded hole on the end face of the air inlet end of the traction motor, completing the closing and fixing of the cover 4.

[0055] The detachable filtering device provided by the utility model has the following advantages:

[0056] 1. The detachable filtering device utilizes a filter cover 2 with a cylindrical structure to connect the air inlet end of the air-using device with the air outlet end of the air-supplying device, which is convenient for opening an opening 3 for cleaning tools and operators' hands to reach into the side wall of the filter cover 2, providing sufficient operating space for cleaning the filter 1, and cooperating with the openable and closable cover 4, which will not affect the normal operation of the air-using device, facilitates the cleaning of the filter, improves the cleaning efficiency of the filter, and does not need to remove the bolts connecting the air-using device and the air-supplying device, with fewer parts to be removed, which can reduce the labor intensity of the staff and also avoid the risk of bolt thread slippage caused by frequent disassembly and assembly of bolts.

[0057] 2. In the detachable filtering device, the cover plate 4 is rotatably connected to the filter outer cover 2 through the rotating shaft 5, and is detachably connected to the filter outer cover 2 through the connecting shaft 6. It is only necessary to remove the connecting shaft 6, and the cover plate 4 can be rotated around the rotating shaft 5 at the other end, and then the cover plate 4 can be opened to expose the opening 3. Not only is the operation simple and convenient, but there is also no need to store the cover plate 4 elsewhere.

[0058] The above is only a preferred embodiment of the present invention, and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents suggested above without departing from the scope of the technical solution of the present invention. The implementation schemes in the above embodiments can be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the present invention.

Claims

1. A detachable filtering device, characterized in that: It includes a filter and a filter cover, the filter cover is a cylindrical structure, and its two ends are respectively fixedly connected to the air outlet end of the first component and the air inlet end of the second component, the filter is fixedly installed on the filter cover, an opening is provided on the side wall of the filter cover, and an openable and closable cover is installed at the opening. When closed, the cover closes the opening, one end of the cover is rotatably connected to the filter cover through a rotating shaft, and the other end of the cover is detachably connected to the filter cover through a connecting shaft.

2. The detachable filter device according to claim 1, characterized in that: A first mounting edge and a second mounting edge protruding outward are respectively provided at both ends of the cylindrical body of the filter outer cover, and a plurality of first mounting holes and a plurality of second mounting holes are respectively opened on the first mounting edge and the second mounting edge. The first mounting edge and the second mounting edge are respectively fixedly connected to the corresponding first component and the second component through fasteners.

3. The detachable filter device according to claim 2, characterized in that: Short bolts are used as fasteners to fix the first mounting edge and the second mounting edge to the first component and the second component. Threaded holes matching the short bolts are respectively arranged on the air outlet end face of the first component and the air inlet end face of the second component. The installation directions of the short bolts installed on the first mounting edge and the second mounting edge are opposite.

4. The detachable filter device according to claim 2, characterized in that: Two groups of through holes are correspondingly arranged on the first mounting edge and the second mounting edge, in which a first long bolt is installed in one group of through holes, and the first long bolt is used as a rotating shaft to be rotatably connected to the cover plate, and a second long bolt is installed in the other group of through holes, and the second long bolt is used as a connecting shaft to be detachably connected to the cover plate. After the second long bolt is removed, the cover plate can be rotated around the first long bolt to realize opening of the cover plate.

5. The detachable filter device according to claim 1, characterized in that: At least one connecting edge protruding outwardly from the outer surface of the cover plate is arranged on the outer surface of the cover plate, and the connecting edge is arranged along the length direction of the outer surface of the cover plate. A first axial hole for passing the rotating shaft is provided at one end of the connecting edge, and a second axial hole for passing the connecting shaft is provided at the other end of the connecting edge.

6. The detachable filter device according to claim 5, characterized in that: The connecting edges are provided with two parallel ones, and the two connecting edges are respectively installed at the upper and lower side edges of the cover plate.

7. The detachable filter device according to claim 1, characterized in that: The filter is clamped and fixedly installed between the end of the filter cover and the air outlet end of the first component or the air inlet end of the second component; or, the filter is fixedly installed inside the filter cover by a fastener or a snap-on structure.

8. The detachable filter device according to claim 1, characterized in that: The length of the opening in the circumferential direction of the cross section of the filter cover is at least 1 / 2 of the total circumferential length.

9. The detachable filter device according to any one of claims 1 to 8, characterized in that: The first component is an air duct, and the second component is a traction motor.

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