Filter screen cleaning device for fresh air equipment and fresh air equipment

Abstract

The utility model relates to the technical field of fresh air equipment, and discloses a filter screen cleaning device for fresh air equipment. The filter screen cleaning device comprises a sweeping assembly, a driving assembly and a pushing piece, the sweeping assembly comprises a sweeping piece, and the sweeping piece is suitable for being arranged opposite to a filter screen; the driving assembly comprises a driving part which is in transmission connection with the cleaning part and can drive the cleaning part to move along the surface of the filter screen to clean the filter screen; the pushing part is in transmission connection with the cleaning part and can drive the cleaning part to move towards the filter screen when a gap exists between the cleaning part and the filter screen, so that the cleaning part is in contact with the filter screen. The pushing piece is in transmission connection with the sweeping piece, the sweeping piece can be driven to move towards the filter screen when a gap exists between the sweeping piece and the filter screen, and therefore the situation that the sweeping piece is shortened due to abrasion and loses the cleaning function can be avoided, and the cleaning capacity of the cleaning device is improved. The utility model further discloses the fresh air equipment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fresh air equipment, in particular to a filter screen cleaning device for fresh air equipment and fresh air equipment. BACKGROUND

[0002] In the use process of the fresh air machine, the filter screen at the air inlet pipe is easy to accumulate dust, and currently the filter screen is usually cleaned manually, which is time-consuming and laborious and has the risk of high-altitude operation.

[0003] The related technology discloses a fresh air system, which comprises a ventilation pipe body, a filter screen body fixedly connected inside the ventilation pipe body, a placing plate fixedly connected to the side wall of the ventilation pipe body, a motor fixedly connected to the top of the placing plate, a brush drivingly connected to the motor through a rotating shaft, and the brush being in contact with the filter screen body. The brush is driven to move by the motor rotation, so that the filter screen can be cleaned, and the problem of time-consuming and laborious disassembly and cleaning of the filter screen is solved.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

[0005] In the related art, although the filter screen can be cleaned by the brush driven to move by the motor rotation, the brush will be shortened due to abrasion during the cleaning process, resulting in the loss of cleaning ability of the brush.

[0006] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present application, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. INVENTION CONTENTS

[0007] In order to have a basic understanding of some aspects of the disclosed embodiments, the following is a simple summary. The summary is not a general review, nor does it determine the key / important elements or delineate the protection scope of these embodiments, but serves as a prelude to the detailed description below.

[0008] The embodiments of the present disclosure provide a filter screen cleaning device for fresh air equipment and fresh air equipment to improve the cleaning ability.

[0009] According to a first aspect of the embodiments of the present application, a filter screen cleaning device for fresh air equipment is provided, comprising: a cleaning assembly comprising a cleaning piece, the cleaning piece being adapted to be arranged opposite to the filter screen; a driving assembly comprising a driving piece, the driving piece being in transmission connection with the cleaning piece and being capable of driving the cleaning piece to move along the surface of the filter screen to clean the filter screen; a pushing piece in transmission connection with the cleaning piece, the pushing piece being capable of driving the cleaning piece to move towards the filter screen when there is a gap between the cleaning piece and the filter screen, so that the cleaning piece is in contact with the filter screen.

[0010] Optionally, the driving assembly further comprises a first transmission shaft in driving connection with the driving member; and the cleaning assembly further comprises a second transmission shaft, one end of which is connected with the cleaning member and the other end of which is in transmission connection with the first transmission shaft, and the second transmission shaft is capable of moving relative to the first transmission shaft in the direction of the cleaning member towards the filter screen.

[0011] Optionally, the second transmission shaft is sleeved outside the first transmission shaft.

[0012] Optionally, the first transmission shaft is provided with a limiting portion and the second transmission shaft is provided with a limiting matching portion, the limiting portion and the limiting matching portion are matched to limit the rotation of the first transmission shaft relative to the second transmission shaft.

[0013] Optionally, one of the limiting portion and the limiting matching portion is a limiting protrusion and the other is a limiting clamping groove, and the limiting protrusion is capable of being clamped into the limiting clamping groove.

[0014] Optionally, the limiting clamping groove extends in the direction of the cleaning member towards the filter screen.

[0015] Optionally, the first transmission shaft is provided with a check portion and the second transmission shaft is provided with a check matching portion, the check portion and the check matching portion are matched to prevent the second transmission shaft from moving relative to the first transmission shaft in the direction of the filter screen towards the cleaning member.

[0016] Optionally, the check portion comprises a first ratchet, the first ratchet is provided on the first transmission shaft, and the tooth tip of the first ratchet is inclined in the direction of the cleaning member towards the filter screen; the check matching portion comprises a second ratchet, the second ratchet is provided on the second transmission shaft, and the tooth tip of the second ratchet is inclined in the direction of the filter screen towards the cleaning member, the first ratchet is engaged with the second ratchet, and the second ratchet is capable of moving relative to the first ratchet in the direction of the cleaning member towards the filter screen; in the case that the number of the first ratchets and the number of the second ratchets are both plural, the plural first ratchets are sequentially arranged along the axial direction of the first transmission shaft to form a first ratchet strip, and the plural second ratchets are sequentially arranged along the axial direction of the second transmission shaft to form a second ratchet strip; the first ratchet strip is engaged with the second ratchet strip, and the second ratchet strip is capable of moving relative to the first ratchet strip in the direction of the cleaning member towards the filter screen.

[0017] Optionally, the pushing member comprises a spring, the spring is arranged between the driving member and the cleaning member, the spring is in a compressed state and is capable of pushing the cleaning member to move in the direction of the cleaning member towards the filter screen; in the case that the cleaning assembly comprises the second transmission shaft, the spring is sleeved outside the second transmission shaft.

[0018] Optionally, the filter screen cleaning device for the fresh air equipment further comprises a first support, the first support is supported between the driving member and the cleaning member, one end of the spring is abutted against the first support, and the other end of the spring is abutted against the cleaning member.

[0019] According to the second aspect of the embodiment of the present application, a fresh air equipment is provided, comprising: an air inlet pipe, configured with an air inlet; a filter screen, arranged at the air inlet; the filter screen cleaning device for the fresh air equipment as any one of the above disclosed embodiments, the cleaning member is arranged opposite to the filter screen, and the cleaning member is in contact with the filter screen.

[0020] Optionally, the fresh air equipment further comprises: a second bracket, arranged in the air inlet pipe, the second bracket is located on the side of the filter screen away from the air inlet, and the second bracket is in abutment with the filter screen.

[0021] The filter screen cleaning device for the fresh air equipment and the fresh air equipment provided by the embodiment of the present application can achieve the following technical effects:

[0022] By arranging the cleaning member opposite to the filter screen, the cleaning member can directly contact the filter screen, thereby effectively removing dust on the filter screen. By driving the cleaning member to move along the surface of the filter screen through the driving member, automatic cleaning can be achieved, and the cleaning efficiency and effect of the filter screen are improved. The driving connection between the pushing member and the cleaning member can drive the cleaning member to move towards the filter screen when there is a gap between the cleaning member and the filter screen, thereby avoiding the cleaning member from losing cleaning effect due to wear and tear, and improving the cleaning capacity of the cleaning device.

[0023] The foregoing general description and the following description are only exemplary and explanatory, and are not used to limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0024] One or more embodiments are exemplarily illustrated by corresponding drawings, which do not constitute limitation on the embodiments, elements with the same reference numerals in the drawings are shown as similar elements, the drawings do not constitute proportional limitation, and wherein:

[0025] Figure 1 is an assembly structure schematic view of the filter screen cleaning device for the fresh air equipment, the air inlet pipe and the filter screen provided by the embodiment of the present application, wherein the direction indicated by the arrow is the direction of the cleaning member towards the filter screen;

[0026] Figure 2 is another assembly structure schematic view of the filter screen cleaning device for the fresh air equipment, the air inlet pipe and the filter screen provided by the embodiment of the present application;

[0027] Figure 3 is Figure 2 the cross-sectional view of A-A direction shown in the figure;

[0028] Figure 4 is Figure 3 the enlarged schematic view of B part shown in the figure;

[0029] Figure 5is another filter cleaning device for a fresh air equipment provided by the embodiments of the present disclosure and an assembly structure diagram of the filter cleaning device, the air inlet pipe and the filter screen;

[0030] Figure 6 is Figure 5 is an enlarged schematic view of the C part shown in the figure;

[0031] Figure 7 is Figure 5 is a cross-sectional view of the D-D direction shown in the figure;

[0032] Figure 8 is Figure 7 is an enlarged schematic view of the E part shown in the figure.

[0033] Reference signs:

[0034] 10: cleaning assembly; 11: cleaning piece; 12: second transmission shaft; 121: limiting fitting part; 122: limiting clamping groove; 1221: first limiting clamping groove; 1222: second limiting clamping groove; 1223: positioning groove wall; 123: non-return fitting part; 124: second ratchet; 125: second ratchet bar;

[0035] 20: driving assembly; 21: driving piece; 22: first transmission shaft; 221: limiting part; 222: limiting protrusion; 2221: first limiting protrusion; 2222: second limiting protrusion; 223: non-return part; 224: first ratchet; 225: first ratchet bar;

[0036] 30: pushing piece; 31: spring;

[0037] 40: first support;

[0038] 50: filter screen;

[0039] 60: air inlet pipe; 61: air inlet;

[0040] 70: second support. DETAILED DESCRIPTION

[0041] In order to be able to understand the features and technical contents of the embodiments of the present disclosure more fully, the implementation of the embodiments of the present disclosure will be described in detail below, and the attached drawings are only used for reference and do not limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, through multiple details, a sufficient understanding of the disclosed embodiments is provided. However, one or more embodiments can still be implemented without these details. In other cases, in order to simplify the drawings, well-known structures and devices can be simplified.

[0042] The terms "first", "second", etc. in the description, claims, and drawings of the embodiments of the present disclosure, and the above-described drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so as to describe the embodiments of the present disclosure herein. In addition, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0043] In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "back", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to indicating the orientation or positional relationship, the above-mentioned part of the terms can also be used to represent other meanings, for example, the term "upper" can also be used to represent a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0044] In addition, the terms "set", "connected", "fixed" should be broadly understood. For example, "connected" can be fixedly connected, detachably connected, or integrally configured; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0045] Unless otherwise specified, the term "a plurality of" means two or more.

[0046] In the embodiments of the present disclosure, the character " / " represents an "or" relationship between the objects before and after it. For example, A / B represents: A or B.

[0047] The term "and / or" is a description of the association between objects, which means that there can be three relationships. For example, A and / or B, which means: A or B, or, A and B, the three relationships.

[0048] It should be noted that the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0049] In combination Figures 1-8 As shown, the embodiments of the present disclosure provide a filter screen cleaning device for a fresh air equipment, which comprises a cleaning assembly 10, a driving assembly 20 and a pushing piece 30.

[0050] The cleaning assembly 10 comprises a cleaning piece 11 which is adapted to be arranged opposite to the filter screen 50; the driving assembly 20 comprises a driving piece 21 which is in transmission connection with the cleaning piece 11 and can drive the cleaning piece 11 to move along the surface of the filter screen 50 to clean the filter screen 50; the pushing piece 30 is in transmission connection with the cleaning piece 11, and the pushing piece 30 can drive the cleaning piece 11 to move towards the filter screen 50 when there is a gap between the cleaning piece 11 and the filter screen 50, so that the cleaning piece 11 is in contact with the filter screen 50.

[0051] In the process of cleaning the filter screen 50 by the cleaning piece 11, the cleaning piece 11 and the filter screen 50 are in contact and friction, which can cause the cleaning piece 11 to be abraded and shortened, so that there is a gap between the cleaning piece 11 and the filter screen 50. Under the pushing action of the pushing piece 30, the cleaning piece 11 can be driven to move towards the filter screen 50, so that the cleaning piece 11 and the filter screen 50 always keep in contact, thereby improving the cleaning ability. Meanwhile, even if the cleaning piece 11 fails to contact the filter screen 50 at the initial installation position, the pushing piece 30 can push the cleaning piece 11 towards the filter screen 50 until the two are in contact. In this way, even if the shape of the filter screen 50 is irregular or the installation position is deviated, the cleaning piece 11 can effectively contact the filter screen 50 and clean it.

[0052] The driving piece 21 drives the cleaning piece 11 to move along the surface of the filter screen 50, which can be that the driving piece 21 drives the cleaning piece 11 to rotate along the surface of the filter screen 50, or the driving piece 21 drives the cleaning piece 11 to translate along the surface of the filter screen 50, so that the cleaning piece 11 can contact the entire surface of the filter screen 50, thereby improving the cleaning effect of the filter screen 50. The driving piece 21 can be a motor.

[0053] The filter screen cleaning device for the fresh air equipment provided by the embodiment of the present disclosure is used, the cleaning piece 11 is arranged opposite to the filter screen 50, so that the cleaning piece 11 can directly contact the filter screen 50, thereby effectively removing the dust on the filter screen 50. The driving piece 21 drives the cleaning piece 11 to move along the surface of the filter screen 50, which can realize automatic cleaning and improve the cleaning efficiency and effect of the filter screen 50. The pushing piece 30 is in transmission connection with the cleaning piece 11, and the pushing piece 30 can drive the cleaning piece 11 to move towards the filter screen 50 when there is a gap between the cleaning piece 11 and the filter screen 50, thereby avoiding that the cleaning piece 11 loses the cleaning effect due to abrasion and shortening, and improving the cleaning ability of the cleaning device. Meanwhile, this can also fully use the consumables and increase the use cycle of the cleaning piece 11, thereby reducing the cost.

[0054] Optionally, the cleaning piece 11 is a brush.

[0055] The brush is used to clean the filter screen 50, and has a cleaning effect on different impurities such as catkins, hair and dust. It can be understood that the cleaning piece 11 can also be a sponge or other cleaning component.

[0056] Optionally, in combination with Figures 1-8 As shown in the figure, the cleaning member 11 is in interference contact with the filter screen 50.

[0057] This can more effectively remove dust and impurities on the filter screen 50, improving cleaning efficiency.

[0058] Optionally, in combination with Figures 2-4 As shown in the figure, the driving assembly 20 further comprises a first transmission shaft 22, the first transmission shaft 22 being in driving connection with the driving member 21; the cleaning assembly 10 further comprises a second transmission shaft 12, one end of the second transmission shaft 12 being connected with the cleaning member 11, the other end of the second transmission shaft 12 being in transmission connection with the first transmission shaft 22, and the second transmission shaft 12 being capable of moving relative to the first transmission shaft 22 along the direction of the cleaning member 11 towards the filter screen 50.

[0059] The direction of the cleaning member 11 towards the filter screen 50 is as shown by the arrow direction in Figure 1 the figure.

[0060] The driving assembly 20 comprises the driving member 21 and the first transmission shaft 22 in driving connection, the cleaning assembly 10 comprises the cleaning member 11 and the second transmission shaft 12 in connection, and the first transmission shaft 22 is in transmission connection with the second transmission shaft 12. The first transmission shaft 22 is driven to move by the driving member 21, which can drive the second transmission shaft 12 to move, and then drive the cleaning member 11 to move along the surface of the filter screen 50 by the second transmission shaft 12.

[0061] The first transmission shaft 22 is in transmission connection with the second transmission shaft 12, and the second transmission shaft 12 is capable of moving relative to the first transmission shaft 22 along the direction of the cleaning member 11 towards the filter screen 50. When there is a gap between the cleaning member 11 and the filter screen 50, the pushing member 30 can push the cleaning member 11 to move towards the filter screen 50, so that the cleaning member 11 is in contact with the filter screen 50. At this time, the second transmission shaft 12 moves towards the filter screen 50 synchronously with the cleaning member 11, so that the second transmission shaft 12 moves relative to the first transmission shaft 22 along the direction of the cleaning member 11 towards the filter screen 50. In this way, the second transmission shaft 12 can move relative to the first transmission shaft 22 along the direction of the cleaning member 11 towards the filter screen 50 while maintaining transmission connection between the first transmission shaft 22 and the second transmission shaft 12. The cleaning member 11 is driven to move towards the filter screen 50 by the second transmission shaft 12 to be in contact with the filter screen 50, so that the cleaning member 11 can still move along the surface of the filter screen 50 to clean the filter screen 50 after being worn out.

[0062] Optionally, in combination with Figures 2-4 As shown in the figure, the second transmission shaft 12 is sleeved outside the first transmission shaft 22.

[0063] The second transmission shaft 12 is sleeved outside the first transmission shaft 22, the second transmission shaft 12 is a hollow structure, the second transmission shaft 12 is surrounded outside the first transmission shaft 22, and the outer surface of the first transmission shaft 22 and the inner surface of the second transmission shaft 12 are attached. In this way, the first transmission shaft 22 and the second transmission shaft 12 overlap in space, which can save space while realizing power transmission. The second transmission shaft 12 is directly sleeved outside the first transmission shaft 22, which can also reduce sliding and friction during transmission, improve transmission efficiency, and realize effective power transmission. It can be understood that the first transmission shaft 22 can also be sleeved outside the second transmission shaft 12.

[0064] Optionally, as shown in Figure 2 、 Figure 5 and Figure 6 , the first transmission shaft 22 is provided with a limiting portion 221, and the second transmission shaft 12 is provided with a limiting matching portion 121, the limiting portion 221 and the limiting matching portion 121 are matched, and the first transmission shaft 22 can be limited relative to the second transmission shaft 12.

[0065] The driving member 21 drives the first transmission shaft 22 to rotate, and the first transmission shaft 22 drives the second transmission shaft 12 to rotate. By matching the limiting portion 221 and the limiting matching portion 121, the first transmission shaft 22 can be limited relative to the second transmission shaft 12, so that the first transmission shaft 22 and the second transmission shaft 12 can rotate synchronously, and the stability of the transmission is improved.

[0066] Optionally, as shown in Figure 2 、 Figure 5 and Figure 6 , in the case where the second transmission shaft 12 is sleeved outside the first transmission shaft 22, the limiting portion 221 is arranged on the outer surface of the first transmission shaft 22, and the limiting matching portion 121 is arranged on the inner surface of the second transmission shaft 12.

[0067] In this way, the space between the first transmission shaft 22 and the second transmission shaft 12 can be fully utilized, and no additional space is needed to arrange the limiting structure, so that the overall design is more compact. Arranging the limiting portion 221 on the outer surface of the first transmission shaft 22 and the limiting matching portion 121 on the inner surface of the second transmission shaft 12 can also improve the stability of the entire transmission system, provide uniform support between the first transmission shaft 22 and the second transmission shaft 12, and reduce the deviation caused by external force or vibration.

[0068] Optionally, as shown in Figure 6 , one of the limiting portion 221 and the limiting matching portion 121 is a limiting protrusion 222, and the other is a limiting slot 122, and the limiting protrusion 222 can be clamped into the limiting slot 122.

[0069] The limiting matching structure of the limiting protrusion 222 and the limiting clamping groove 122 is simple and intuitive, easy to manufacture and assemble. The limiting portion 221 can be the limiting protrusion 222, and the limiting matching portion 121 can be the limiting clamping groove 122. Alternatively, the limiting portion 221 can be the limiting clamping groove 122, and the limiting matching portion 121 can be the limiting protrusion 222. In this application, the limiting portion 221 is taken as the limiting protrusion 222, and the limiting matching portion 121 is taken as the limiting clamping groove 122. In the case that the second transmission shaft 12 is sleeved outside the first transmission shaft 22, the limiting protrusion 222 is arranged on the outer surface of the first transmission shaft 22 and protrudes towards the second transmission shaft 12, and the limiting clamping groove 122 is recessed in the inner surface of the second transmission shaft 12. The limiting clamping groove 122 can penetrate the inner and outer surfaces of the second transmission shaft 12, which can increase the contact area between the limiting protrusion 222 and the limiting clamping groove 122, thereby enhancing the stability of the limiting.

[0070] Optionally, in combination with Figure 8 As shown in the figure, the number of limiting protrusions 222 is multiple, and the multiple limiting protrusions 222 include a first limiting protrusion 2221 and a second limiting protrusion 2222, and the first limiting protrusion 2221 and the second limiting protrusion 2222 are arranged opposite along the radial direction of the first transmission shaft 22. The number of limiting clamping grooves 122 is multiple, and the multiple limiting clamping grooves 122 include a first limiting clamping groove 1221 and a second limiting clamping groove 1222, and the first limiting clamping groove 1221 and the second limiting clamping groove 1222 are arranged opposite along the radial direction of the second transmission shaft 12. The first limiting protrusion 2221 is matched with the first limiting clamping groove 1221, and the second limiting protrusion 2222 is matched with the second limiting clamping groove 1222.

[0071] Through the matching of the first limiting protrusion 2221 and the first limiting clamping groove 1221 and the matching of the second limiting protrusion 2222 and the second limiting clamping groove 1222, the limiting effect on the second transmission shaft 12 can be improved, and the rotation of the second transmission shaft 12 relative to the first transmission shaft 22 can be more effectively limited. The first limiting clamping groove 1221 and the second limiting clamping groove 1222 both extend along the direction of the cleaning member 11 towards the filter screen 50, which can improve the guiding effect of the second transmission shaft 12, and more accurately and effectively guide the movement of the second transmission shaft 12 relative to the first transmission shaft 22 along the direction of the cleaning member 11 towards the filter screen 50.

[0072] Optionally, in combination with Figure 6 As shown in the figure, the limiting clamping groove 122 extends along the direction of the cleaning member 11 towards the filter screen 50.

[0073] The limiting clamping groove 122 extends along the cleaning piece 11 towards the filter screen 50, can provide a guiding effect for the limiting protrusion 222, and can guide the second transmission shaft 12 to move relative to the first transmission shaft 22 towards the filter screen 50. During the movement of the second transmission shaft 12 relative to the first transmission shaft 22 towards the filter screen 50, the limiting protrusion 222 can adapt to different positions of the limiting clamping groove 122, and continuously limit the second transmission shaft 12 relative to the first transmission shaft 22. Thus, the stability of the second transmission shaft 12 during movement is improved.

[0074] Optionally, in combination with Figure 6 As shown, the limiting clamping groove 122 includes a positioning groove wall 1223 located at one end of the limiting clamping groove 122 close to the cleaning piece 11. The limiting protrusion 222 cooperates with the positioning groove wall 1223 to limit the initial position of the cleaning piece 11. When the pushing piece 30 is a spring 31, the limiting protrusion 222 cooperates with the positioning groove wall 1223 to limit the initial compression degree of the spring 31.

[0075] The positioning groove wall 1223 is located at one end of the limiting clamping groove 122 close to the cleaning piece 11. The limiting protrusion 222 cooperates with the positioning groove wall 1223 to limit the initial position of the cleaning piece 11. When the pushing piece 30 is a spring 31, the limiting protrusion 222 cooperates with the positioning groove wall 1223 to limit the initial compression degree of the spring 31, avoiding performance degradation or damage of the spring 31 due to excessive compression.

[0076] Optionally, in combination with Figure 4 As shown, the first transmission shaft 22 is provided with a check portion 223, and the second transmission shaft 12 is provided with a check cooperation portion 123. The check portion 223 cooperates with the check cooperation portion 123 to prevent the second transmission shaft 12 from moving relative to the first transmission shaft 22 along the filter screen 50 towards the cleaning piece 11.

[0077] The check portion 223 cooperates with the check cooperation portion 123 to prevent the second transmission shaft 12 from moving relative to the first transmission shaft 22 along the filter screen 50 towards the cleaning piece 11, achieving one-way movement control of the second transmission shaft 12. Thus, the second transmission shaft 12 can only move towards the filter screen 50, and cannot move in the opposite direction, thereby avoiding movement of the cleaning piece 11 away from the filter screen 50, and improving the cleaning effect of the cleaning device.

[0078] Optionally, in combination with Figure 4The check portion 223 includes a first ratchet 224 arranged on the first transmission shaft 22, and the tooth tip of the first ratchet 224 is inclined in the direction of the filter screen 50 along the cleaning member 11. The check matching portion 123 includes a second ratchet 124 arranged on the second transmission shaft 12, and the tooth tip of the second ratchet 124 is inclined in the direction of the cleaning member 11 along the filter screen 50. The first ratchet 224 is engaged with the second ratchet 124, and the second ratchet 124 can move relative to the first ratchet 224 in the direction of the filter screen 50 along the cleaning member 11. In the case where the number of the first ratchet 224 and the second ratchet 124 is multiple, the multiple first ratchets 224 are arranged in sequence along the axial direction of the first transmission shaft 22 to form a first ratchet bar 225. The multiple second ratchets 124 are arranged in sequence along the axial direction of the second transmission shaft 12 to form a second ratchet bar 125. The first ratchet bar 225 is engaged with the second ratchet bar 125, and the second ratchet bar 125 can move relative to the first ratchet bar 225 in the direction of the filter screen 50 along the cleaning member 11.

[0079] The tooth tip of the first ratchet 224 is inclined in the direction of the filter screen 50 along the cleaning member 11, and the tooth tip of the second ratchet 124 is inclined in the direction of the cleaning member 11 along the filter screen 50, so that the second ratchet 124 can move relative to the first ratchet 224 in the direction of the filter screen 50 along the cleaning member 11. The inclined surface of the first ratchet 224 cooperates with the inclined surface of the second ratchet 124 to achieve a guiding matching effect. The blocking surface of the first ratchet 224 cooperates with the blocking surface of the second ratchet 124 to achieve a one-way limiting effect.

[0080] The first ratchet 224 is engaged with the second ratchet 124, and the second ratchet 124 can move relative to the first ratchet 224 in the direction of the filter screen 50 along the cleaning member 11. The engagement of the first ratchet 224 and the second ratchet 124 can achieve one-way locking of the second transmission shaft 12, so that the second transmission shaft 12 can only move in the direction of the filter screen 50. The engagement of the first ratchet 224 and the second ratchet 124 can also support the cleaning member 11 when moving towards the filter screen 50, effectively preventing the cleaning member 11 from rebounding due to external force, and enhancing the stability of the cleaning process.

[0081] The first ratchets 224 are arranged along the axial direction of the first transmission shaft 22, and the second ratchets 124 are arranged along the axial direction of the second transmission shaft 12, so that the first ratchets 224 form a first ratchet bar 225 and the second ratchets 124 form a second ratchet bar 125. The engagement between each first ratchet 224 of the first ratchet bar 225 and each second ratchet 124 of the second ratchet bar 125 can provide a clear stop point, thereby improving the control accuracy of the movement of the cleaning member 11. Meanwhile, the engagement between the first ratchet bar 225 and the second ratchet bar 125 can also improve the connection stability between the first transmission shaft 22 and the second transmission shaft 12.

[0082] Optionally, in combination with Figure 4 As shown in the drawings, when the second transmission shaft 12 is arranged outside the first transmission shaft 22, the first ratchets 224 are arranged on the outer surface of the first transmission shaft 22, and the second ratchets 124 are arranged on the inner surface of the second transmission shaft 12.

[0083] The second transmission shaft 12 is arranged outside the first transmission shaft 22, the first ratchets 224 are arranged on the outer surface of the first transmission shaft 22, and the second ratchets 124 are arranged on the inner surface of the second transmission shaft 12, thereby saving space. The first ratchets 224 are arranged on the outer surface of the first transmission shaft 22, and the second ratchets 124 are arranged on the inner surface of the second transmission shaft 12, so that the outer surface of the first transmission shaft 22 and the inner surface of the second transmission shaft 12 are in contact while the first ratchets 224 and the second ratchets 124 are engaged. In this way, the contact area between the first transmission shaft 22 and the second transmission shaft 12 can be increased, thereby improving the overall strength of the structure.

[0084] Optionally, in combination with Figure 1 and Figure 2 As shown in the drawings, the pushing member 30 includes a spring 31 arranged between the driving member 21 and the cleaning member 11. The spring 31 is in a compressed state and can push the cleaning member 11 to move in the direction in which the cleaning member 11 approaches the filter screen 50. When the cleaning assembly 10 includes the second transmission shaft 12, the spring 31 is arranged outside the second transmission shaft 12.

[0085] The pushing member 30 adopts the spring 31, which can simplify the structure of the cleaning device. The spring 31 is arranged between the driving member 21 and the cleaning member 11. When the spring 31 is in a compressed state, it can elastically deform. The elastic force of the spring 31 can push the cleaning member 11 to move in the direction in which the cleaning member 11 approaches the filter screen 50. The elastic force of the spring 31 can provide a continuous and stable pushing force and supporting force, so that the cleaning member 11 can stably move to a position in contact with the filter screen 50. Meanwhile, the flexible pushing of the spring 31 can reduce the hard impact between the cleaning member 11 and the filter screen 50, thereby reducing wear and tear and prolonging the service life of the cleaning member 11 and the filter screen 50.

[0086] Optionally, in combination with Figures 1-3As shown, the filter screen cleaning device for the fresh air equipment further comprises a first support 40 supported between the driving member 21 and the cleaning member 11, one end of the spring 31 abuts against the first support 40, and the other end of the spring 31 abuts against the cleaning member 11.

[0087] The first support 40 is supported between the driving member 21 and the cleaning member 11, and can support the driving member 21, thereby enhancing the structural stability of the cleaning device. Meanwhile, one end of the spring 31 abuts against the first support 40, and the other end of the spring 31 abuts against the cleaning member 11, thereby providing a stable support point for the spring 31, so that the pushing force of the spring 31 can be more effectively transmitted to the cleaning member 11, thereby enhancing the structural stability and cleaning efficiency of the cleaning device. It can be understood that the spring 31 can also directly abut against the driving member 21.

[0088] The embodiment of the present disclosure provides a fresh air equipment, which comprises an air inlet pipe 60, a filter screen 50, and the filter screen cleaning device for the fresh air equipment according to any one of the above-mentioned embodiments. The air inlet pipe 60 is configured with an air inlet 61; the filter screen 50 is arranged at the air inlet 61; and the cleaning member 11 is arranged opposite to the filter screen 50 and in contact with the filter screen 50.

[0089] The air conditioner provided by the embodiment of the present disclosure has all the beneficial effects of the filter screen cleaning device for the fresh air equipment according to any one of the above-mentioned embodiments.

[0090] In combination with Figure 1 and Figure 2 As shown, the filter screen 50 is arranged at the air inlet 61 of the air inlet pipe 60, the cleaning member 11 is arranged opposite to the filter screen 50 and located outside the air inlet 61. The cleaning member 11 is in contact with the filter screen 50, thereby cleaning the sundries outside the filter screen 50, improving the filtering effect of the filter screen 50, and thus improving the working efficiency of the fresh air equipment. During the use of the cleaning device, the cleaning member 11 is easily worn and shortened due to the contact with the filter screen 50, so that there is a gap between the cleaning member 11 and the filter screen 50. Under the pushing action of the pushing member 30, the cleaning member 11 can be driven to move towards the filter screen 50, so that the cleaning member 11 and the filter screen 50 are continuously kept in contact, thereby improving the cleaning ability.

[0091] Optionally, in combination with Figure 1 and Figure 3 As shown, the fresh air equipment further comprises a second support 70 arranged in the air inlet pipe 60, the second support 70 is located on the side of the filter screen 50 away from the air inlet 61, and the second support 70 abuts against the filter screen 50.

[0092] A second support 70 is arranged on the side of the filter screen 50 away from the air inlet 61, and the second support 70 can provide additional support for the filter screen 50 when abutting the filter screen 50, thereby improving the stability of the filter screen 50 during cleaning. This can prevent the filter screen 50 from being deformed or damaged due to the cleaning force, thereby prolonging the service life of the filter screen 50.

[0093] Optionally, as shown in Figure 1 and Figure 2 The first support 40 is connected to the wall of the air inlet pipe 60.

[0094] The first support 40 is connected to the wall of the air inlet pipe 60, so that the first support 40 can be firmly fixed at the air inlet 61 of the air inlet pipe 60, thereby improving the stability of the cleaning device.

[0095] Optionally, as shown in Figure 1 The length of the cleaning member 11 is adapted to the radial dimension of the filter screen 50.

[0096] The length of the cleaning member 11 is adapted to the radial dimension of the filter screen 50, so that the cleaning member 11 can fully cover the surface of the filter screen 50 by rotating along the surface of the filter screen 50, thereby avoiding cleaning dead angles and improving cleaning efficiency.

[0097] Optionally, the first support 40 includes a plurality of first support bars, and the plurality of first support bars are arranged at intervals along the circumference of the air inlet 61.

[0098] The plurality of first support bars are arranged at intervals along the circumference of the air inlet 61, so that the load can be more evenly distributed and the pressure borne by each first support bar can be reduced, thereby improving the stability and durability of the entire first support 40. At the same time, the plurality of first support bars are arranged at intervals along the circumference of the air inlet 61, so that gaps are left between adjacent first support bars, thereby avoiding affecting the air inlet effect of the air inlet 61. In this application, the number of first support bars is taken as three, and the three first support bars are evenly distributed along the circumference of the air inlet 61.

[0099] Optionally, the second support 70 includes a plurality of second support bars, and the plurality of second support bars are arranged at intervals along the circumference of the air inlet 61.

[0100] The plurality of second support bars are arranged at intervals along the circumference of the air inlet 61, so that the load can be more evenly distributed and the pressure borne by each second support bar can be reduced, thereby improving the stability and durability of the entire second support 70. At the same time, the plurality of second support bars are arranged at intervals along the circumference of the air inlet 61, so that gaps are left between adjacent second support bars, thereby avoiding affecting the air inlet effect of the air inlet 61. In this application, the number of second support bars is taken as three, and the three second support bars are evenly distributed along the circumference of the air inlet 61.

[0101] The above description and drawings suffice to fully enable one skilled in the art to practice the embodiments of the present disclosure. Other embodiments can include structural and other changes. The embodiments are merely representative of possible variations. Individual components and functions are optional unless explicitly required, and the order of operations can be varied. Portions and features of some embodiments can be included in, or substituted for, portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the drawings, and can be varied in a variety of ways. The scope of the present disclosure is limited only by the claims that follow.

Claims

1. A filter screen cleaning device for a fresh air unit, characterized by, The utility model relates to a filter screen cleaning device for fresh air equipment, comprising: a cleaning assembly comprising a cleaning piece adapted to be arranged opposite to the filter screen; a driving assembly comprising a driving piece in driving connection with the cleaning piece, capable of driving the cleaning piece to move along the surface of the filter screen to clean the filter screen; a pushing piece in driving connection with the cleaning piece, capable of driving the cleaning piece to move towards the filter screen when there is a gap between the cleaning piece and the filter screen, so that the cleaning piece is in contact with the filter screen.

2. The filter screen cleaning device for fresh air equipment according to claim 1, wherein the driving assembly further comprises: a first transmission shaft in driving connection with the driving piece; the cleaning assembly further comprises: a second transmission shaft, one end of which is connected with the cleaning piece, and the other end of which is in driving connection with the first transmission shaft, and the second transmission shaft is capable of moving along the direction of the cleaning piece towards the filter screen relative to the first transmission shaft.

3. The filter screen cleaning device for fresh air equipment according to claim 2, wherein the second transmission shaft is sleeved outside the first transmission shaft.

4. The filter screen cleaning device for fresh air equipment according to claim 2, wherein the first transmission shaft is provided with a limiting portion, and the second transmission shaft is provided with a limiting matching portion, the limiting portion and the limiting matching portion are matched, and the first transmission shaft is capable of being limited from rotating relative to the second transmission shaft.

5. The filter screen cleaning device for fresh air equipment according to claim 4, wherein one of the limiting portion and the limiting matching portion is a limiting protrusion, and the other is a limiting slot, and the limiting protrusion is capable of being clamped into the limiting slot.

6. The filter screen cleaning device for fresh air equipment according to claim 5, wherein the limiting slot extends along the direction of the cleaning piece towards the filter screen.

7. The filter screen cleaning device for fresh air equipment according to any one of claims 2 to 6, wherein the first transmission shaft is provided with a check portion, and the second transmission shaft is provided with a check matching portion, the check portion and the check matching portion are matched, so as to prevent the second transmission shaft from moving along the direction of the filter screen towards the cleaning piece relative to the first transmission shaft.

8. The filter screen cleaning device for fresh air equipment according to claim 7, wherein the check portion comprises a first ratchet, the first ratchet is arranged on the first transmission shaft, and the tooth tip of the first ratchet is inclined along the direction of the cleaning piece towards the filter screen; the check matching portion comprises a second ratchet, the second ratchet is arranged on the second transmission shaft, and the tooth tip of the second ratchet is inclined along the direction of the filter screen towards the cleaning piece, the first ratchet and the second ratchet are engaged, and the second ratchet is capable of moving along the direction of the cleaning piece towards the filter screen relative to the first ratchet; in the case where the number of the first ratchets and the number of the second ratchets are both plural, the plural first ratchets are arranged in sequence along the axial direction of the first transmission shaft to form a first ratchet strip, and the plural second ratchets are arranged in sequence along the axial direction of the second transmission shaft to form a second ratchet strip, the first ratchet strip and the second ratchet strip are engaged, and the second ratchet strip is capable of moving along the direction of the cleaning piece towards the filter screen relative to the first ratchet strip.

9. The filter screen cleaning device for a fresh air unit of any one of claims 1 to 6, wherein, the pushing piece comprises: a spring arranged between the driving piece and the cleaning piece, the spring is in a compressed state, and is capable of driving the cleaning piece to move along the direction of the cleaning piece towards the filter screen; in the case where the cleaning assembly comprises the second transmission shaft, the spring is sleeved outside the second transmission shaft.

10. The filter screen cleaning device for a fresh air device according to claim 9, characterized in that, Also included are: A first support is supported between the driving member and the cleaning member, one end of the spring is in abutment with the first support, and the other end of the spring is in abutment with the cleaning member.

11. A fresh air unit, characterized by Also included are: An air inlet pipe is configured with an air inlet; A filter screen is provided at the air inlet; The filter screen cleaning device for the fresh air equipment according to any one of claims 1 to 10, the cleaning member is arranged opposite to the filter screen, and the cleaning member is in contact with the filter screen.

12. The fresh air device of claim 11, wherein, Also included are: A second support is provided in the air inlet pipe, the second support is located on the side of the filter screen away from the air inlet, and the second support is in abutment with the filter screen.

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