阅读说明：本技术 一种滤波器用固定机构 (Fixing mechanism for filter ) 是由 杨国顺 于 2019-10-09 设计创作，主要内容包括：本发明公开了一种滤波器用固定机构,包括固定壳体,所述固定壳体的前端外表面和后端外表面靠近下端位置均焊接有安装板,两组所述安装板的上端外表面均开设有若干组螺栓孔,所述固定壳体的内部靠近下端位置活动安装有滤波器固定板。本发明所述的一种滤波器用固定机构,首先,能够减少外界对滤波器线路的影响,而且使用时人们拨动滤波器线路对滤波器不会产生影响,方便人们布线和维护,其次,能够减少外界振动对滤波器的影响,延长滤波器的使用寿命,最后,能够提高滤波器的固定效果,而且人们可以随时向左安装盖方向推动滤波器,将滤波器取下,滤波器的安装和拆卸均比较方便,便于人们更换和修理滤波器,带来更好的使用前景。(The invention discloses a fixing mechanism for a filter, which comprises a fixing shell, wherein mounting plates are welded on the outer surfaces of the front end and the rear end of the fixing shell close to the lower end, a plurality of groups of bolt holes are formed in the outer surfaces of the upper ends of the two groups of mounting plates, and a filter fixing plate is movably mounted in the fixing shell close to the lower end. According to the fixing mechanism for the filter, firstly, the influence of the outside on the filter circuit can be reduced, the filter circuit cannot be influenced when people stir the filter circuit in use, wiring and maintenance of people are facilitated, secondly, the influence of outside vibration on the filter can be reduced, the service life of the filter is prolonged, finally, the fixing effect of the filter can be improved, people can push the filter towards the left mounting cover at any time to take the filter down, the filter is convenient to mount and dismount, people can conveniently replace and repair the filter, and a better use prospect is brought.)

1. A fixing mechanism for a filter includes a fixing case (1), and is characterized in that: the front end outer surface and the rear end outer surface of the fixed shell (1) are respectively welded with a mounting plate (2) close to the lower end position, a plurality of groups of bolt holes are formed in the upper end outer surfaces of the two groups of mounting plates (2), a filter fixing plate (3) is movably mounted in the fixed shell (1) close to the lower end position, a filter mounting mechanism is arranged on the upper end outer surface of the filter fixing plate (3), a filter is movably mounted on the upper end outer surface of the filter fixing plate (3) through the filter mounting mechanism, magnetic connectors (23) are fixedly mounted at two ends of the outer surface of the filter, a filter damping mechanism is fixedly mounted on the lower end outer surface of the filter fixing plate (3), and two groups of filter circuit clamping devices are fixedly mounted on the outer;

filter circuit clamping device includes retainer plate (4), regulation circle (5) and a plurality of clamping mechanism (6) of organizing, the surface of stationary housing (1) is run through to the one end of retainer plate (4), the internal surface that stationary housing (1) position and regulation circle (5) were kept away from to the surface of retainer plate (4) all is provided with the screw thread, a plurality of groups clamping mechanism (6) all are located the inside of retainer plate (4).

2. The fixing mechanism for a filter according to claim 1, wherein: clamping mechanism (6) are including activity groove (7), press from both sides tight piece (8), two sets of spring (9) and two sets of spacing post (10), the inside at retainer plate (4) is seted up in activity groove (7), the through-hole has all been seted up to the upper end and the lower extreme intermediate position in activity groove (7), press from both sides tight piece (8), two sets of spring (9) and two sets of spacing post (10) and all be located the inside in activity groove (7), and are two sets of spacing post (10) are welded respectively at the internal surface in activity groove (7) and are close to both ends position.

3. A fixing mechanism for a filter according to claim 2, wherein: press from both sides tight piece (8) including fixture block (11), intermediate lamella (12) and lower clamp splice (13), go up the lower extreme welding of fixture block (11) and in the upper end surface intermediate position of intermediate lamella (12), the upper end welding of lower clamp splice (13) is in the lower extreme surface intermediate position of intermediate lamella (12), the upper end surface of intermediate lamella (12) is close to both ends position and has all seted up the through-hole, and is two sets of establish respectively at the both ends of a spring (9) and intermediate lamella (12) on two sets of spacing posts (10), a spring (9) fixed mounting is at the lower extreme surface of intermediate lamella (12).

4. A fixing mechanism for a filter according to claim 3, wherein: the outer surface of the upper end of the upper clamping block (11) and the outer surface of the lower end of the lower clamping block (13) are both arc-shaped, one end, close to the adjusting ring (5), of the upper clamping block (11) is an inclined plane, and a rubber gasket is adhered to the outer surface of the lower end of the lower clamping block (13).

5. The fixing mechanism for a filter according to claim 1, wherein: filter damper includes four groups shock attenuation post (14), rubber pad (15) and a plurality of group's bouncing ball (16), four groups shock attenuation post (14) run through the lower extreme surface that sets up at filter fixed plate (3) respectively and are close to four corners position, four groups the surface of shock attenuation post (14) all is overlapped and is equipped with damping spring (17), rubber pad (15) fixed mounting is in the lower extreme surface intermediate position of filter fixed plate (3), a plurality of groups the interior bottom surface of equal fixed mounting in fixed casing (1) of bouncing ball (16).

6. The fixing mechanism for a filter according to claim 1, wherein: the filter installation mechanism comprises a left installation cover (18) and a right installation cover (19), the left installation cover (18) and the right installation cover (19) are respectively welded on the outer surface of the upper end of the filter fixing plate (3) and are close to two end positions, and a pressing device is arranged inside the left installation cover (18).

7. The fixing mechanism for a filter according to claim 6, wherein: the pressing device comprises a plurality of groups of second springs (20) and a plurality of groups of push plates (21), one ends of the second springs (20) are welded on the inner side wall of the left mounting cover (18), and the push plates (21) are fixedly mounted at one ends, far away from the left mounting cover (18), of the second springs (20).

8. The fixing mechanism for a filter according to claim 7, wherein: and bar magnets (22) are arranged in the filter fixing plate (3) and are positioned right below the left mounting cover (18) and the right mounting cover (19).

9. The fixing mechanism for a filter according to claim 1, wherein: the magnet block fixing device is characterized in that magnet blocks are fixedly installed on the outer surface of the lower end of the fixing shell (1) in a position close to two ends in an embedded mode, and a plurality of groups of anti-skidding lines are arranged on the outer surface of the lower end of the fixing shell (1).

Technical Field

The invention relates to the field of filters, in particular to a fixing mechanism for a filter.

Background

Along with the development of society, the living standard of people is continuously improved, various electronic equipment ends appear, in order to facilitate the use of the electronic equipment by people and improve the use precision of the equipment, filters which effectively filter frequency points with specific frequency or frequencies except the frequency points are usually installed in the equipment, in order to facilitate the installation of the filters by people, people invent a fixing mechanism for a filter, along with the rapid development of science and technology, the requirements of people on the fixing mechanism for the filter are continuously increased, and the existing fixing mechanism for the filter cannot meet the use requirements of people;

the existing fixing mechanism for the filter has certain disadvantages when in use, firstly, the existing filter is convenient for people to use, the circuits at two ends of the existing filter can be detached, the existing fixing mechanism for the filter is usually only used for installing the filter, the circuits of the filter cannot be fixed when in use, the filter is greatly influenced by equipment vibration after long-time use, the circuits are easy to fall off, and poor contact is easy to cause, secondly, the existing fixing mechanism for the filter usually adopts bolts to fix the filter, the installation and the detachment of the filter both need specific tools, the operation is more troublesome, finally, the existing fixing mechanism for the filter is only used for fixing the filter, the vibration generated when some existing electronic equipment works is large, the filter can vibrate along with the filter, the filter is easy to damage, and the use requirements of people are not met, to this end, we propose a fixing mechanism for a filter.

Disclosure of Invention

The invention mainly aims to provide a fixing mechanism for a filter, which can effectively solve the problems in the background technology.

In order to achieve the purpose, the invention adopts the technical scheme that:

a fixing mechanism for a filter comprises a fixing shell, wherein mounting plates are welded on the positions, close to the lower end, of the outer surface of the front end and the outer surface of the rear end of the fixing shell, a plurality of groups of bolt holes are formed in the outer surfaces of the upper ends of the two groups of mounting plates, a filter fixing plate is movably mounted in the fixing shell, close to the lower end, a filter mounting mechanism is arranged on the outer surface of the upper end of the filter fixing plate, a filter is movably mounted on the outer surface of the upper end of the filter fixing plate through the filter mounting mechanism, magnetic suction type connectors are fixedly mounted at the two ends of the outer surface of the filter, a filter damping mechanism is fixedly mounted on the outer surface of the lower end;

filter circuit clamping device includes retainer plate, regulating ring and a plurality of clamping mechanism of group, the surface of fixed casing is run through to the one end of retainer plate, the internal surface that fixed casing position and regulating ring were kept away from to the surface of retainer plate all is provided with the screw thread, a plurality of groups clamping mechanism all is located the inside of retainer plate.

Preferably, clamping mechanism includes the activity groove, presss from both sides tight piece, two sets of spring and two sets of spacing post, the inside at the retainer plate is seted up to the activity groove, the through-hole has all been seted up to the upper end and the lower extreme intermediate position in activity groove, press from both sides tight piece, two sets of spring and two sets of spacing post and all be located the inside in activity groove, and are two sets of spacing post welds respectively and is close to both ends position at the internal surface in activity groove.

Preferably, the clamping block comprises an upper clamping block, a middle plate and a lower clamping block, the lower end of the upper clamping block is welded at the middle position of the outer surface of the upper end of the middle plate, the upper end of the lower clamping block is welded at the middle position of the outer surface of the lower end of the middle plate, the outer surface of the upper end of the middle plate is close to two ends, through holes are formed in the positions, two sets of the springs and the two ends of the middle plate are respectively sleeved on the two sets of limiting columns, and the springs are fixedly installed on the outer surface of the lower end.

Preferably, the outer surface of the upper end of the upper clamping block and the outer surface of the lower end of the lower clamping block are both arc-shaped, one end, close to the adjusting ring, of the upper clamping block is an inclined plane, and a rubber gasket is adhered to the outer surface of the lower end of the lower clamping block.

Through the filter circuit clamping device who sets up, the circuit of wave filter passes filter circuit clamping device and the magnetism of wave filter both ends during the use is inhaled the formula and is connected, then people rotate the regulation circle, the tight piece of regulation circle extrusion clamp, press from both sides tight piece motion and press from both sides the circuit tightly, live with the circuit is injectd, can reduce the external influence to the filter circuit, people stir the filter circuit and can not produce the influence to the wave filter during use in addition, make things convenient for people to lay wire and maintain, it is more convenient.

Preferably, wave filter damper includes four groups shock attenuation post, rubber pad and a plurality of group bouncing balls, and four groups the shock attenuation post runs through the lower extreme surface that sets up at the wave filter fixed plate respectively and is close to the four corners position, four groups the surface of shock attenuation post all overlaps and is equipped with damping spring, rubber pad fixed mounting is in the lower extreme surface intermediate position of wave filter fixed plate, a plurality of groups equal fixed mounting of bouncing ball is at the interior bottom surface of fixed casing.

Through the wave filter damper who sets up, damping spring on the shock attenuation post is located the lower extreme of wave filter fixed plate during the use, can eliminate the vibration of external equipment transmission, and when vibrations are great, the rubber pad of wave filter fixed plate lower extreme can be direct and the top contact of bouncing ball, further eliminates the energy that the vibration produced, reduces the influence of vibration to the wave filter, prolongs the life of wave filter.

Preferably, filter installation mechanism includes left side installation lid and right side installation lid, left side installation lid and right side installation lid weld respectively and are close to both ends position at the upper end surface of filter fixed plate, the inside of left side installation lid sets up closing device.

Preferably, closing device includes No. two springs of a plurality of groups and push pedal, a plurality of groups the one end of No. two springs all welds on the inside wall of left side installation lid, push pedal fixed mounting is in No. two springs one end of keeping away from left side installation lid.

Preferably, the filter fixing plate is provided with bar magnets inside and located right below the left mounting cover and the right mounting cover.

Through the wave filter installation mechanism who sets up, people can insert left side installation lid inside with the one end of wave filter during use, the one end of wave filter can extrude the push pedal, make No. two spring contractions, then press the wave filter other end, thereby loosen No. two spring restoration deformations in the back and make the other end of wave filter be located right side installation lid inside, thereby fix the wave filter, and fixed back, terminal surface both ends position can inhale mutually with bar magnet under the wave filter, further improve the fixed effect of wave filter, and people can promote the wave filter at any time, take off the wave filter, the installation is all more convenient with the dismantlement, excellent in use effect.

Preferably, the outer surface of the lower end of the fixed shell is provided with magnet blocks which are embedded and fixedly arranged at positions close to the two ends, and the outer surface of the lower end of the fixed shell is provided with a plurality of groups of anti-skid lines.

Compared with the prior art, the invention provides a fixing mechanism for a filter, which has the following beneficial effects:

1. through the arranged filter circuit clamping device, when the filter is used, a circuit of the filter penetrates through the filter circuit clamping device to be connected with the magnetic suction type connectors at the two ends of the filter, then people rotate the adjusting ring, the adjusting ring extrudes the clamping block, the clamping block moves to clamp the circuit, the circuit is limited, the influence of the outside on the circuit of the filter can be reduced, and when the filter is used, people can not influence the circuit of the filter by shifting the circuit of the filter, so that the wiring and maintenance of people are facilitated, and the filter is more convenient;

2. through the arranged filter damping mechanism, the damping spring on the damping column is positioned at the lower end of the filter fixing plate during use, so that vibration transmitted by external equipment can be eliminated, when the vibration is large, the rubber pad at the lower end of the filter fixing plate can be directly contacted with the top end of the elastic ball, the energy generated by the vibration is further eliminated, the influence of the vibration on the filter is reduced, and the service life of the filter is prolonged;

3. through the arranged filter mounting mechanism, when in use, one end of the filter can be inserted into the left mounting cover, one end of the filter can extrude the push plate to contract the second spring, then the other end of the filter is pressed, the second spring recovers deformation after being loosened to enable the other end of the filter to be positioned in the right mounting cover, so that the filter is fixed, after the filter is fixed, the two ends of the lower end surface of the filter can attract the bar magnets, the fixing effect of the filter is further improved, people can push the filter towards the left mounting cover at any time to take down the filter, the filter is convenient to mount and dismount, people can replace and repair the filter conveniently, the using effect is better, the operation of the fixing mechanism for the whole filter is convenient, the using effect is better compared with the traditional mode, and the using requirements of people are met, is relatively practical.

The parts of the device not involved are the same as or can be implemented using prior art.

Drawings

Fig. 1 is a schematic view of an overall structure of a fixing mechanism for a filter according to the present invention;

FIG. 2 is a connection diagram of an adjusting ring in a fixing mechanism for a filter according to the present invention;

fig. 3 is a side sectional view of a middle fixing ring of a fixing mechanism for a filter according to the present invention;

FIG. 4 is an enlarged view of a structure at A in FIG. 3 according to a fixing mechanism for a filter of the present invention;

FIG. 5 is a partial top view of a securing mechanism for a filter according to the present invention;

fig. 6 is a sectional view of a filter fixing plate in a fixing mechanism for a filter according to the present invention;

fig. 7 is a partial internal structure view of a fixing mechanism for a filter according to the present invention.

In the figure: 1. a stationary housing; 2. mounting a plate; 3. a filter fixing plate; 4. a stationary ring; 5. an adjusting ring; 6. a clamping mechanism; 7. a movable groove; 8. a clamping block; 9. a first spring; 10. a limiting column; 11. an upper clamping block; 12. a middle plate; 13. a lower clamping block; 14. a shock-absorbing post; 15. a rubber pad; 16. a resilient ball; 17. a damping spring; 18. a left mounting cover; 19. a right mounting cover; 20. a second spring; 21. pushing the plate; 22. a bar magnet; 23. magnetic attraction type joint.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

A fixing mechanism for a filter is disclosed, as shown in FIGS. 1-7, and comprises a fixing shell 1, wherein mounting plates 2 are welded on the positions, close to the lower end, of the outer surface of the front end and the outer surface of the rear end of the fixing shell 1, a plurality of groups of bolt holes are formed in the outer surfaces of the upper ends of the two groups of mounting plates 2, a filter fixing plate 3 is movably mounted in the fixing shell 1, close to the lower end, a filter mounting mechanism is arranged on the outer surface of the upper end of the filter fixing plate 3, a filter is movably mounted on the outer surface of the upper end of the filter fixing plate 3 through the filter mounting mechanism, magnetic connectors 23 are fixedly mounted at both ends of the outer surface of the filter, a filter damping mechanism is fixedly;

filter circuit clamping device includes retainer plate 4, regulation circle 5 and a plurality of clamping mechanism 6 of organizing, and the surface of fixed casing 1 is run through to the one end of retainer plate 4, and the internal surface that fixed casing 1 position and regulation circle 5 were kept away from to the surface of retainer plate 4 all is provided with the screw thread, and a plurality of clamping mechanism 6 of organizing all are located the inside of retainer plate 4.

Clamping mechanism 6 includes activity groove 7, presss from both sides tight piece 8, two sets of spring 9 and two sets of spacing post 10, and activity groove 7 is seted up in the inside of retainer plate 4, and the through-hole has all been seted up to the upper end and the lower extreme intermediate position of activity groove 7, presss from both sides tight piece 8, two sets of spring 9 and two sets of spacing post 10 and all is located the inside of activity groove 7, and two sets of spacing post 10 weld respectively and are close to both ends position at the internal surface of activity groove 7.

The clamping block 8 comprises an upper clamping block 11, a middle plate 12 and a lower clamping block 13, the lower end of the upper clamping block 11 is welded at the middle position of the outer surface of the upper end of the middle plate 12, the upper end of the lower clamping block 13 is welded at the middle position of the outer surface of the lower end of the middle plate 12, through holes are formed in the positions, close to the two ends, of the outer surface of the upper end of the middle plate 12, through holes are formed in the positions, two sets of first springs 9 and the two ends of the middle plate 12 are respectively sleeved on the two sets of limiting columns 10, and.

The outer surface of the upper end of the upper clamping block 11 and the outer surface of the lower end of the lower clamping block 13 are both arc-shaped, one end of the upper clamping block 11, which is close to the adjusting ring 5, is an inclined plane, and a rubber gasket is adhered to the outer surface of the lower end of the lower clamping block 13.

Through the filter circuit clamping device who sets up, pass filter circuit clamping device with the circuit of wave filter during use and connect 23 with the magnetism type of inhaling at wave filter both ends, then people rotate regulating ring 5, regulating ring 5 extrusion presss from both sides tight piece 8, press from both sides tight piece 8 motion and press from both sides the circuit tightly, live the circuit is injectd, can reduce the external influence to the wave filter circuit, people stir the wave filter circuit and can not produce the influence to the wave filter during use moreover, make things convenient for people to lay wire and maintain, it is more convenient.

The filter damping mechanism comprises four groups of damping columns 14, rubber pads 15 and a plurality of groups of elastic balls 16, wherein the four groups of damping columns 14 are respectively arranged at positions, close to four corners, of the outer surface of the lower end of the filter fixing plate 3 in a penetrating mode, the damping springs 17 are sleeved on the outer surfaces of the four groups of damping columns 14, the rubber pads 15 are fixedly installed at the middle position of the outer surface of the lower end of the filter fixing plate 3, and the elastic balls 16 are fixedly installed on the inner bottom surface of the fixing shell 1.

Through the wave filter damper who sets up, damping spring 17 on the shock attenuation post 14 is located the lower extreme of wave filter fixed plate 3 during the use, can eliminate the vibration of external equipment transmission, and when vibrations are great, rubber pad 15 of wave filter fixed plate 3 lower extreme can be direct and the top contact of bounce ball 16, further eliminates the energy that the vibration produced, reduces the influence of vibration to the wave filter, prolongs the life of wave filter.

The filter mounting mechanism comprises a left mounting cover 18 and a right mounting cover 19, the left mounting cover 18 and the right mounting cover 19 are respectively welded on the outer surface of the upper end of the filter fixing plate 3 and are close to two ends, and a pressing device is arranged inside the left mounting cover 18.

The pressing device comprises a plurality of groups of second springs 20 and a push plate 21, one ends of the plurality of groups of second springs 20 are welded on the inner side wall of the left mounting cover 18, and the push plate 21 is fixedly mounted at one end, far away from the left mounting cover 18, of the second spring 20.

A bar magnet 22 is provided inside the filter fixing plate 3 just below the left and right mounting covers 18 and 19.

Through the arranged filter mounting mechanism, when in use, one end of the filter can be inserted into the left mounting cover 18 firstly, one end of the filter can extrude the push plate 21 to contract the second spring 20, then the other end of the filter is pressed, the second spring 20 recovers deformation after being loosened to enable the other end of the filter to be positioned in the right mounting cover 19, thereby fixing the filter, and after the filter is fixed, the two end positions of the lower end surface of the filter can attract the bar magnet 22, further improving the fixing effect of the filter, and people can push the filter in the direction of the left mounting cover 18 at any time to take down the filter, the filter is convenient to mount and dismount, the filter can be conveniently replaced and repaired by people, the use effect is better, the operation of the fixing mechanism for the whole filter is convenient, the use effect is better compared with the traditional mode, and the use requirements of people are met, is relatively practical.

The outer surface of the lower end of the fixed shell 1 is provided with magnet blocks which are embedded and fixedly arranged at positions close to the two ends, and the outer surface of the lower end of the fixed shell 1 is provided with a plurality of groups of anti-skid lines.

It should be noted that, the invention is a fixing mechanism for a filter, when in use, the fixing housing 1 is firstly placed at the position of the filter inside the equipment, the magnet block at the lower end of the fixing housing 1 is adsorbed on the equipment, then the fixing housing 1 is fixed through the bolt hole on the mounting plate 2, then the filter is mounted in the filter mounting mechanism on the filter fixing plate 3, when in mounting, one side of the lower end of the filter housing is obliquely inserted into the left mounting cover 18, the push plate 21 in the left mounting cover 18 is pressed, the second spring 20 at one end of the push plate 21 is stressed and contracted, one side of the lower end of the filter enters the left mounting cover 18, then people press the other end of the filter, so that the filter is loosened after the filter is tightly attached to the filter fixing plate 3, the second spring 20 is restored to deform to drive the push plate 21 to move to one side, so as to drive the filter to move to one, thus, the filter is fixed, after the filter is fixed, people pass the circuit through the fixing ring 4 and the adjusting ring 5 to be connected with the magnetic suction type joint 23 on the filter, then the adjusting ring 5 is rotated, the adjusting ring 5 moves towards one side to extrude the upper clamping block 11 in the fixing ring 4, so that the lower clamping block 13 moves downwards, the circuit of the filter is fixed, and the installation of the filter is completed;

through the arranged filter circuit clamping device, when the filter circuit clamping device is used, a circuit of the filter penetrates through the filter circuit clamping device to be connected with the magnetic suction type connectors 23 at the two ends of the filter, then the adjusting ring 5 is rotated by people, the adjusting ring 5 extrudes the clamping block 8, the clamping block 8 moves to clamp the circuit, and the circuit is limited, so that the influence of the outside on the filter circuit can be reduced, and when the filter circuit is used, people can not influence the filter by shifting the filter circuit, so that the filter circuit is convenient for people to wire and maintain and is more convenient;

through the arranged filter damping mechanism, the damping spring 17 on the damping column 14 is positioned at the lower end of the filter fixing plate 3 during use, so that vibration transmitted by external equipment can be eliminated, when the vibration is large, the rubber pad 15 at the lower end of the filter fixing plate 3 can be directly contacted with the top end of the elastic ball 16, the energy generated by the vibration is further eliminated, the influence of the vibration on the filter is reduced, and the service life of the filter is prolonged;

through the arranged filter mounting mechanism, when in use, one end of the filter can be inserted into the left mounting cover 18 firstly, one end of the filter can extrude the push plate 21 to contract the second spring 20, then the other end of the filter is pressed, the second spring 20 recovers deformation after being loosened to enable the other end of the filter to be positioned in the right mounting cover 19, thereby fixing the filter, and after the filter is fixed, the two end positions of the lower end surface of the filter can attract the bar magnet 22, further improving the fixing effect of the filter, and people can push the filter in the direction of the left mounting cover 18 at any time to take down the filter, the filter is convenient to mount and dismount, the filter can be conveniently replaced and repaired by people, the use effect is better, the operation of the fixing mechanism for the whole filter is convenient, the use effect is better compared with the traditional mode, and the use requirements of people are met, is relatively practical.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.