Blowing and sucking machine

Abstract

The utility model discloses a blowing and sucking machine which comprises a main machine shell. The host is arranged in the host shell; the battery pack combination part is used for installing a battery pack, and the motor is powered by the battery pack; the motor is a brushless motor, and the power of the motor is greater than 1000W; the blowing and sucking machine has a blowing mode and a sucking mode, and under the blowing mode, the thrust of the blowing and sucking machine is larger than 14.5 N. By setting the power and the thrust of the blowing and sucking machine, the blowing and sucking machine is higher in capability of blowing articles in a blowing mode, and when the blowing and sucking machine encounters heavier articles such as gravels, the blowing effect can be well achieved.

Description

Technical Field

[0001] The present application relates to a blower-vacuum machine, and more particularly to a cutting assembly suitable for the blower-vacuum machine and the blower-vacuum machine. Background Art

[0002] A blower-vacuum machine in the related art is a common electric outdoor cleaning tool, which is mainly used for cleaning and collecting garbage such as leaves. The blower-vacuum machine usually has a blowing mode and a suction mode. In the blowing mode, the blower-vacuum machine blows outward to collect the leaves scattered on the ground. In the suction mode, the blower-vacuum machine generates suction, and cooperates with the collection device to suck the leaves into the collection device, thereby avoiding manual cleaning and achieving the purpose of saving manpower and time.

[0003] The power and thrust of the existing vacuum blower are difficult to use when blowing objects heavier than fallen leaves, such as stones, and the vacuum blower may not be able to exert its maximum effect in daily use.

[0004] This section provides background information related to the present application which is not necessarily prior art. Utility Model Content

[0005] One object of the present application is to solve or at least alleviate part or all of the above problems. To this end, one object of the present application is to provide a cutting group of a blower-vacuum machine.

[0006] In order to achieve the above objectives, this application adopts the following technical solutions:

[0007] A blowing and suction machine includes a main body shell, a motor and a battery pack combination, wherein the motor is arranged in the main body shell; the battery pack combination is used to install the battery pack, and the motor is powered by the battery pack; the power of the motor is greater than 1000W.

[0008] In one embodiment, the capacity of the battery pack is greater than or equal to 6AH.

[0009] In one embodiment, the power of the motor is greater than 1200W.

[0010] In one embodiment, at least two battery packs are provided.

[0011] In one embodiment, the capacity of the battery pack is greater than or equal to 6AH, and the power of the motor is greater than 1200W.

[0012] In one embodiment, the thrust of the blower-suction machine is greater than 15.5N.

[0013] In one embodiment, the maximum rotation speed of the motor is greater than or equal to 8000 rpm.

[0014] In one embodiment, the maximum air volume of the blower-suction machine is greater than or equal to 480 cfm.

[0015] In one embodiment, the maximum wind speed of the blower-suction machine is greater than or equal to 100 mph.

[0016] In one embodiment, the rated voltage of the battery pack is greater than or equal to 40V.

[0017] The benefit of the present application lies in that by setting the power and thrust of the blower-suction machine, the blower-suction machine is more capable of blowing objects in the blowing mode, and when encountering slightly heavier objects such as gravel, the blowing effect can also be better achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a blowing and suction machine in a blowing mode according to an embodiment of the present application. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of the blowing and suction machine provided by the present application in the blowing mode Figure 2 ;

[0020] Figure 3 is a partial structural cross-sectional view of the blowing and suction machine provided by the present application;

[0021] Figure 4 This is a schematic diagram of the exploded structure of the blowing and suction machine provided by the present application in the blowing mode Figure 1 ;

[0022] Figure 5 yes Figure 3 Enlarged view of area A in the middle;

[0023] Figure 6 It is a structural schematic diagram of the main body shell and auxiliary handle of the blowing and suction machine provided in the present application;

[0024] Figure 7 It is an exploded schematic diagram of the main body shell and the auxiliary handle of the blowing and suction machine provided by the present application;

[0025] Figure 8 This is a schematic diagram of the exploded structure of the blowing and suction machine provided by the present application in the blowing mode Figure 2 ;

[0026] Fig. 9 This is a schematic diagram of the exploded structure of the blowing and suction machine provided by the present application in the blowing mode Figure 3 , the air inlet hood is opened;

[0027] Fig.10 This is a partial structural diagram of the blower-suction machine provided in the present application when the air inlet cover is opened. Figure 1 ;

[0028] Fig.11 It is a structural schematic diagram of the first hook of the blowing and suction machine provided in the present application;

[0029] Fig.12 This is a schematic diagram of the exploded structure of the blowing and suction machine provided by the present application in the blowing mode Figure 3 , the air inlet hood is closed;

[0030] Fig.13 It is a partial structural schematic diagram of the blowing-suction machine provided by the present application in the blowing mode;

[0031] Fig.14 It is a schematic diagram of the exploded structure of the main body shell and the hair dryer of the blowing and suction machine provided in the present application;

[0032] Fig.15 It is a structural schematic diagram of the blowing and suction machine provided by the present application in the suction mode;

[0033] Fig.16 is a schematic diagram of the exploded structure of the blowing and suction machine provided by the present application in the suction mode;

[0034] Fig.17 This is a partial structural diagram of the blower-suction machine provided in the present application when the air inlet cover is opened. Figure 2 ;

[0035] Fig.18 It is a partial structural schematic diagram of the hair dryer provided by the present application;

[0036] Fig.19 It is a structural schematic diagram of the blower tube installed when the blower-suction machine provided by the present application is in the suction mode;

[0037] Fig. 20 It is a structural schematic diagram of the installation connection part when the blowing and suction machine provided by the present application is in the suction mode;

[0038] Fig.21 It is a partial structural schematic diagram of the blowing-suction machine provided by the present application in the suction mode;

[0039] Fig. 22 It is a structural schematic diagram of disassembling the conversion part when the blowing-vacuum machine provided by the present application is in the suction mode;

[0040] Fig.23 It is a partial structural schematic diagram of the disassembly of the conversion part when the blowing-suction machine provided by the present application is in the suction mode;

[0041] Fig.24 It is a schematic diagram of the structure of storing the hair dryer when the blower-vacuum machine provided by the present application is in the suction mode;

[0042] Fig.25 This is a schematic diagram of the structure of the motor, fan assembly and cutting assembly provided in this application. Figure 1 ;

[0043] Fig.26This is a schematic diagram of the structure of the motor, fan assembly and cutting assembly provided in this application. Figure 2 ;

[0044] Fig. 27 It is a schematic diagram of the exploded structure of the motor, fan assembly and cutting assembly provided by the present application;

[0045] Fig.28 It is a schematic diagram of the structure of the host housing, fan assembly and cutting assembly provided by the present application;

[0046] Fig.29 It is a front view of the host housing, fan assembly and cutting assembly provided by the present application;

[0047] Fig.30 This is a schematic diagram of the structure of the cutting assembly provided in this application. Figure 1 ;

[0048] Fig.31 This is a schematic diagram of the structure of the cutting assembly provided in this application. Figure 2 ;

[0049] Fig.32 This is a schematic diagram of the structure of the cutting assembly provided in this application. Figure 3 ;

[0050] Fig.33 This is a schematic diagram of the structure of the cutting assembly provided in this application. Figure 4 ;

[0051] Fig.34 is a front view of the cutting assembly provided by the present application;

[0052] Fig.35 is a schematic diagram of another embodiment of a cutting assembly provided by the present application;

[0053] Fig.36 is a structural schematic diagram of a blowing mode of another embodiment provided by the present application;

[0054] Fig.37 yes Fig.36 A structural diagram from another angle;

[0055] Fig.38 This is a schematic diagram of the speed control of the blowing and suction machine of the present application.

[0056] In the figure:

[0057] 100, housing; 101, air inlet; 102, air outlet; 103, heat dissipation outlet; 110, main housing; 111, lining body; 1111, limiting protrusion; 112, first volute; 113, second volute; 1131, second mounting groove; 114, hook; 1141, second groove; 115, first cavity housing; 116, outer housing; 120, connecting housing; 121, battery pack joint;

[0058] 200, motor; 210, main body; 220, motor shaft; 201, motor axis;

[0059] 300, control panel;

[0060] 401, first straight line; 402, second straight line; 410, fan assembly; 411, support plate; 412, first fan blade; 413, second fan blade; 420, cutting assembly; 421, base; 422, first blade; 4221, first cutting portion; 4222, second cutting portion; 4223, transition portion; 4224, first cutting plane; 423, second blade; 4231, second cutting plane; 4201, rotation axis;

[0061] 510, blowing assembly; 511, hair dryer; 520, air inlet cover; 521, first handle; 530, first assembly structure; 531, first convex; 532, first hook; 540, identification assembly; 541, Hall sensor; 542, magnet; 543, cover plate; 550, second assembly structure; 551, second hook; 560, ejection mechanism; 561, ejection column; 562, spring;

[0062] 610, main handle; 611, gripping area; 620, main switch; 621, first speed command; 630, speed regulating device; 631, second speed command; 640, auxiliary handle; 650, adjustment component; 651, first connecting part; 652, second connecting part; 653, locking member;

[0063] 710, air suction assembly; 711, air suction cylinder; 7111, second handle; 7112, second support shaft; 7113, first protrusion; 720, connecting portion; 721, first support shaft; 722, third clamping protrusion; 723, elastic hook; 730, conversion member; 731, collection port; 732, first groove; 733, operating handle; 734, operating member; 740, collection bag;

[0064] 800, battery pack; 810, disassembly device;

[0065] V1, first speed; V2, second speed. DETAILED DESCRIPTION

[0066] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above drawings.

[0067] In this application, the terms "comprises", "includes", "has" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0068] In this application, the term "and / or" is a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects before and after are in an "and / or" relationship.

[0069] In the present application, the terms "connect", "combine", "couple", and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, direct connection refers to two parts or components being connected together without the need for an intermediary, and indirect connection refers to two parts or components being connected to at least one intermediary respectively, and the two parts or components being connected via the intermediary. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings, and may include electrical connections or couplings.

[0070] In the present application, it will be understood by those of ordinary skill in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerances caused by manufacturing, assembly, and use associated with a specific value, and the like. Such terms should also be considered to disclose a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0071] In this application, it will be understood by those skilled in the art that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0072] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, the bottom can include directly below, lower left, lower right, lower front, and lower back, etc.

[0073] See also Figures 1 to 34 The present application provides a blower-suction machine having at least two working modes, namely a blowing mode and a suction mode. The blower-suction machine can collect scattered objects such as leaves by using the blowing mode, or can suck the leaves into a designated garbage collection device by using the suction mode, thereby achieving the purpose of cleaning. Therefore, the blower-suction machine can selectively work in the blowing mode or the suction mode according to the actual needs of the user.

[0074] See also Figures 1 to 3 The blower-sucking machine includes a casing 100, a motor 200, a control board 300 and a fan assembly 410. The motor 200 is arranged in the casing 100, the control board 300 is electrically connected to the motor 200, the fan assembly 410 is connected to the motor 200, and the fan assembly 410 is driven by the motor 200 to generate airflow; the casing 100 has an air suction port 101 and an air blowing port 102, and the air suction port 101 is arranged corresponding to the fan assembly 410. When the fan assembly 410 is working, the airflow enters from the air suction port 101, passes through the motor 200, and then flows out from the air blowing port 102, so as to realize blowing or sucking, and at the same time, the airflow can dissipate heat for the motor 200 during the flow process.

[0075] The blower-vacuum machine provided in the present application has a suction port 101 disposed at the lower side of the housing 100, and a blowing port 102 disposed at the front side of the housing 100. The blower-vacuum machine further includes a blowing assembly 510, and the blowing assembly 510 includes a blowing cylinder 511 for airflow, and the blowing cylinder 511 is detachably connected to the blowing port 102. After the blowing assembly 510 is installed, the blower-vacuum machine can gather scattered objects such as leaves by using the blowing mode.

[0076] The housing 100 also has a heat dissipation port 103, and the motor 200 includes at least the following heat dissipation path: air flows in from the heat dissipation port 103, passes through the control board 300 and the motor 200 in sequence, and then flows out from the air outlet 102. During the heat dissipation process, the air flow will not bring dust at the location of the motor 200 to the control board 300, thereby preventing the control board 300 from being contaminated by dust. Figure 3 The arrow in the middle shows the direction of the heat dissipation airflow.

[0077] Specifically, the control board 300 is disposed on a side of the motor 200 away from the fan assembly 410 to prevent dust in the airflow sucked by the fan assembly 410 from contaminating the control board 300 .

[0078] The shortest distance between the heat dissipation port 103 and the control board 300 is less than or equal to 5 cm, so that the airflow entering the heat dissipation port 103 can quickly reach the control board 300, and the heat dissipation effect is good. In some embodiments, the shortest distance between the heat dissipation port 103 and the control board 300 is 4 cm. In some embodiments, the shortest distance between the heat dissipation port 103 and the control board 300 is 3 cm. In some embodiments, the shortest distance between the heat dissipation port 103 and the control board 300 is 2 cm.

[0079] The housing 100 includes a main body housing 110 and a connecting housing 120 disposed on one side of the main body housing 110. The motor 200 is disposed in the main body housing 110. The control board 300 is disposed in the connecting housing 120. The heat dissipation port 103 is disposed in the connecting housing 120. In order to keep the control board 300 away from the air inlet 101, the air inlet 101 is disposed on one side of the main body housing 110 away from the connecting housing 120. The air outlet 102 is disposed on the front side of the main body housing 110.

[0080] The blower and vacuum machine also includes a main handle 610, which is disposed on a side of the connection housing 120 away from the main housing 110 for easy gripping. The connection housing 120 of the present application is disposed on the upper side of the main housing 110, and the main handle 610 is disposed on the upper side of the connection housing 120, so that the heat dissipation port 103 is located above the motor 200, further preventing dust from contaminating the control panel 300. A gripping area 611 is formed on the main handle 610, and the gripping area 611 refers to an area on the main handle 610 that a user's hand may grip.

[0081] In this embodiment, the control board 300 and the fan assembly 410 are respectively located on both sides of the main body 210, or in other words, the control board 300 and the fan assembly 410 are respectively located on both sides of the motor lamination. The shape and air inlet direction of the heat dissipation port 103 are not limited here, and can be set according to actual needs. In some embodiments, the air inlet direction of the heat dissipation port 103 is parallel to the air outlet direction of the air outlet 102, which can prevent the blown air from being sucked into the heat dissipation port 103 to prevent dust from being sucked in.

[0082] Generally, the blower includes a DC blower and an AC blower. The blower powered by the battery pack 800 is a DC blower. In some embodiments, the motor 200 may be a brushless motor powered by the battery pack 800. The motor 200 has an upper side and a lower side. The motor 200 has only two heat dissipation paths, namely a first heat dissipation path and a second heat dissipation path. In the first heat dissipation path, the airflow flows through the motor 200 from the upper side of the motor 200. In the second heat dissipation path, the airflow flows through the motor 200 from the lower side of the motor 200.

[0083] In the first heat dissipation air path, the airflow flows from the control board 300 through the motor 200. During the heat dissipation process, the airflow will not bring dust at the location of the motor 200 to the control board 300, thereby preventing the control board 300 from being contaminated by dust. Specifically, in the first heat dissipation air path, the airflow enters from the heat dissipation port 103, passes through the control board 300 and the motor 200 in sequence, and flows out from the air outlet 102. In the second heat dissipation air path, the airflow enters from the air suction port 101, passes through the motor 200, and flows out from the air outlet 102.

[0084] The blower and vacuum machine further includes a battery pack coupling portion 121 for mounting the battery pack 800, and the motor 200 is powered by the battery pack 800. The battery pack coupling portion 121 is disposed on the connection housing 120. Specifically, the heat dissipation port 103 is disposed on the front side of the connection housing 120, and the battery pack coupling portion 121 is disposed on the rear side of the connection housing 120.

[0085] A main switch 620 is provided at the lower side of the main handle 610 for convenient power on and power off operations. A speed regulating device 630 is provided at the connection between the housing 120 and the main handle 610 for convenient speed regulation. In this embodiment, the main switch 620 is a trigger, and the speed regulating device 630 is a speed regulating dial. Holding the main handle 610 with one hand can realize power on and off and speed regulation.

[0086] In some embodiments, the power of the motor 200 is greater than 1200 W, which has a large power and improves work efficiency. The power of the motor 200 can be 1250 W, 1300 W, 1350 W, 1400 W or 1450 W. The motor 200 can be a brushless motor.

[0087] In the blowing mode, the thrust of the blowing and suction machine is greater than 14.5 N. The thrust may be 15 N, 15.5 N, 16 N or 16.5 N. In one embodiment, the thrust of the blowing and suction machine is greater than 15.5 N.

[0088] In other embodiments, the capacity of the battery pack 800 is greater than or equal to 6AH, and the power of the motor 200 is greater than 1200W, which has a longer battery life and power, and improves work efficiency. One battery pack 800 can be provided, or at least two can be provided.

[0089] The maximum speed of the motor is greater than or equal to 8000 rpm. In some embodiments, the maximum speed of the motor can be 8250 rpm, 8500 rpm, 8750 rpm or 9000 rpm.

[0090] The maximum air volume of the blower-suction machine is greater than or equal to 480 cfm. In some embodiments, the maximum air volume of the blower-suction machine can be 500 cfm, 520 cfm, 530 cfm or 550 cfm.

[0091] The maximum wind speed of the blower-vacuum machine in the blowing mode is greater than or equal to 100 mph. In some embodiments, the maximum wind speed of the blower-vacuum machine in the blowing mode is about 110 mph, 120 mph, 125 mph or 135 mph.

[0092] The rated voltage of the battery pack of the blower and vacuum machine is greater than or equal to 40 V. In some embodiments, the rated voltage of the battery pack is greater than or equal to 40 V and less than or equal to 60 V, such as 40 V, 48 V, or 56 V.

[0093] See also Figure 3 and Figure 4 The blower and vacuum machine further includes a cutting assembly 420, and the cutting assembly 420 is connected to the motor 200. Specifically, the motor 200 includes a main body 210 and a motor shaft 220 connected to the main body 210, and the cutting assembly 420 is arranged on the motor shaft 220. Among them, the fan assembly 410 and the cutting assembly 420 are both connected to the motor shaft 220, and the fan assembly 410 is located between the main body 210 and the cutting assembly 420. In one embodiment, the main body 210 refers to the stator lamination of the motor 200.

[0094] As for the main housing 110, a storage space is formed inside the main housing 110, which can not only accommodate the motor 200, but also accommodate the cutting assembly 420 and the fan assembly 410. The suction port 101 and the blowing port 102 are both connected to the storage space. The blower and vacuum machine has a blowing mode and a suction mode. When the blower and vacuum machine is in the suction mode, the sucked object enters the housing 100 from the suction port 101 under the action of the airflow generated by the fan assembly 410, is cut by the cutting assembly 420, and is discharged from the blowing port 102. Under the action of the cutting assembly 420, the sucked object is cut into small pieces or chopped. During the cutting process, the splashed sucked object generates a large impact force on at least part of the main housing 110. If the impact resistance of the main housing 110 is weak, it will be deformed or even damaged.

[0095] In order to improve the impact resistance, the material of the entire main housing 110 can be changed, or the material of part of the main housing 110 can be changed for the main impact-susceptible parts to reduce costs. In the blower-vacuum machine provided by the present application, at least part of the main housing 110 forms the first cavity shell 115, and the cutting assembly 420 is at least partially disposed in the first cavity shell 115, and the sucked object can be discharged from the first cavity shell 115 through the cutting assembly 420.

[0096] The first chamber housing 115 includes an outer housing 116 and an inner lining 111, wherein the outer housing 116 is disposed outside the inner lining 111. In this embodiment, the outer housing 116 is composed of the first volute 112 and the second volute 113. In one embodiment, the outer housing 116 may be composed of only one of the first volute 112 or the second volute 113.

[0097] The outer shell 116 is made of a first material, and the inner lining 111 is made of a second material. The impact resistance of the second material is stronger than that of the first material, that is, the impact strength of the second material is greater than the impact strength of the first material, and the impact strength of the second material is greater than or equal to 20 kJ / m 2 In one embodiment, the impact strength of the second material is greater than or equal to 25 kJ / m 2 In one embodiment, the impact strength of the second material is greater than or equal to 30 kJ / m 2 In one embodiment, the impact strength of the second material is greater than or equal to 35 kJ / m 2 In one embodiment, the impact strength of the second material is greater than or equal to 40 kJ / m 2 In one embodiment, the impact strength of the second material is greater than or equal to 45 kJ / m 2 In some embodiments, the impact strength of the second material is about 50 kJ / m 2 、55kJ / m 2 or 60kJ / m 2 .

[0098] It should be noted that the impact strength here is tested according to ISO 180 / 1eA. By configuring the first cavity shell 115 to have two layers and the inner layer having a high impact strength, the impact force of the splashing inhaled matter on the liner body 111 can be resisted, deformation can be reduced, and damage can be avoided.

[0099] In the inner cavity of the first cavity shell 115, the lining body 111 can be arranged along the flow direction of the inhaled object, so that the lining body 111 is arranged at all positions contacted by the inhaled object to reduce the impact force of the inhaled object on the outer shell 115. The shape of the lining body 111 is not limited here.

[0100] In some embodiments, the impact strength of the first material is greater than or equal to 5 kJ / m2 And less than or equal to 25kJ / m 2 .

[0101] In some embodiments, the hardness of the first material is greater than the hardness of the second material, so that the outer shell 115 protects the lining body 111 and prevents the lining body 111 from being damaged.

[0102] As mentioned above, the first cavity shell 115 can be part or all of the main body shell 110. In this embodiment, at least part of the fan assembly 410 is accommodated in the first cavity shell 115. The main body shell 110 has an air suction port 101 and an air blowing port 102, and the air suction port 101 and the air blowing port 102 are both connected to the inner cavity of the first cavity shell 115, and the cutting assembly 420 is arranged near the air suction port 101.

[0103] In order to facilitate the installation of the internal components of the main body housing 110, the main body housing 110 is a split structure. Specifically, the main body housing 110 includes a first volute 112 and a second volute 113 that are buckled together, and a limiting protrusion 1111 is provided on the outer peripheral surface of the lining body 111, and the limiting protrusion 1111 is sandwiched between the first volute 112 and the second volute 113. After the first volute 112 and the second volute 113 are buckled together, the lining body 111 is fixed by clamping the limiting protrusion 1111.

[0104] The first volute 112 and the second volute 113 can be locked by bolts. A first mounting groove is provided at the circumferential edge of the first volute 112, and a second mounting groove 1131 is provided at the circumferential edge of the second volute 113. When the first volute 112 and the second volute 113 are buckled, the first mounting groove and the second mounting groove 1131 are buckled to form an installation space, and the limiting protrusion 1111 is clamped in the installation space. A mounting hole for inserting a bolt is provided in the installation space.

[0105] See also Figures 4 to 7 The blower and vacuum machine further includes a sub-handle 640, which is connected to the main housing 110, and the angle of the sub-handle 640 is adjustable. Specifically, the sub-handle 640 is disposed at the rear side of the main housing 110, and the sub-handle 640 is connected to the main housing 110 through an adjustment component 650, and the angle of the sub-handle 640 can be adjusted through the adjustment component 650.

[0106] The adjustment assembly 650 includes a first connection portion 651, a second connection portion 652 and a locking member 653. The first connection portion 651 is disposed on the main body housing 110, the second connection portion 652 is disposed on the secondary handle 640, and the locking member 653 can lock the first connection portion 651 and the second connection portion 652. The first connection portion 651 includes a plurality of first connection teeth, the second connection portion 652 includes a plurality of second connection teeth, the first connection teeth can mesh with the second connection teeth, and the same first connection tooth can selectively mesh with different second connection teeth to change the angle of the secondary handle 640. The locking member 653 is penetrated through the first connection portion 651 and the second connection portion 652 and can be threadedly connected to the second connection portion 652. The plurality of first connection teeth are arranged at intervals around the circumference of the locking member 653, and the plurality of second connection teeth are arranged at intervals around the circumference of the locking member 653.

[0107] See also Figures 8 to 14 The blower and sucker machine further includes an air inlet cover 520, which can be opened and closed at the air suction port 101. The blower tube 511 of the blowing assembly 510 is detachably arranged at the blowing port 102. The blower and sucker machine has a blowing mode and a suction mode. When the blower and sucker machine is in the blowing mode, the air inlet cover 520 is closed, and the air flow passes through the air inlet cover 520 into the air suction port 101 to reach the motor 200, and then flows out from the blowing port 102 through the blower tube 511. Since the air suction port 101 and the blowing port 102 are both arranged at the main body housing 110, the air inlet cover 520 and the blower tube 511 are both connected to the main body housing 110.

[0108] The blower-vacuum machine further includes a first assembly structure 530. When the first assembly structure 530 is in an assembled state, the air inlet cover 520 remains in a closed state. In the closed state, the airflow can pass through the air inlet cover 520 and enter the air suction port 101. When the first assembly structure 530 is in a non-assembled state, the air inlet cover 520 can be opened, and at this time, the air suction assembly 710 can be installed at the air suction port 101, which will be described in detail later.

[0109] The first assembly structure 530 includes a first matching portion and a second matching portion. The first matching portion is provided on one of the air inlet cover 520 and the host housing 110, and the second matching portion is provided on the other of the two. The first matching portion and the second matching portion cooperate to lock the air inlet cover 520 and the host housing 110. In some embodiments, the first assembly structure 530 can be a magnetic attraction component.

[0110] In this embodiment, one end of the air inlet cover 520 is rotatably connected to the main body housing 110, and the other end of the air inlet cover 520 is selectively engaged with the main body housing 110. Even if the air inlet cover 520 is opened, it will not fall off.

[0111] In this embodiment, the first assembly structure 530 is a snap assembly. The first matching portion includes a first latch 531, and the second matching portion includes a first hook 532, and the first latch 531 and the first hook 532 can be engaged. Specifically, the first latch 531 is provided on the air inlet cover 520, and the first hook 532 is provided on the host housing 110 and is elastically connected to the host housing 110. In the process of closing the air inlet cover 520, the first latch 531 is pressed down from one side of the first hook 532 to squeeze the first hook 532, so that the first hook 532 retracts, and as the air inlet cover 520 continues to be closed, the first latch 531 moves to the other side of the first hook 532, and the first hook 532 extends to limit the first latch 531. When the air inlet cover 520 needs to be opened, the first hook 532 can be retracted by pressing the first hook 532, thereby releasing the restriction of the first hook 532 on the first latching protrusion 531, and the air inlet cover 520 can be opened by rotating it.

[0112] The blower and vacuum machine further includes an identification component 540 for identifying the position of the blower 511. The blower 511 can be in an installation position or a non-installation position. The blower 511 can be installed in the installation position only when the first assembly structure 530 is in an assembly state. In the installation position, air can flow out through the blower 511. The blower 511 can only be installed after the air inlet cover 520 is closed, so as to prevent the blower 511 from being installed and turned on and the air inlet cover 520 being found to be not closed, and the cutting assembly 420 being exposed, which poses a safety hazard.

[0113] The control board 300 has a starting circuit for controlling the start or stop of the blower and vacuum machine; wherein, when the blower barrel 511 is in a non-installation position, the starting circuit is in a disconnected state, and the blower and vacuum machine is in a stopped state; when the blower barrel 511 is in an installation position, the starting circuit is in a conducting state, and the blower and vacuum machine is in a waiting state. The control board 300 can receive a signal from the identification component 540, and control the state of the starting circuit according to the signal. When the blower barrel 511 is in a non-installation position, the blower and vacuum machine is in a stopped state and cannot be started. The control board 300 can use an existing circuit board, and the circuit on the circuit board can be set according to actual needs.

[0114] The identification component 540 is a contact switch or a non-contact switch. The non-contact switch is one or more of a photoelectric switch, a pressure switch, and a Hall switch. The contact switch can be a micro switch. When two or more non-contact switches are used, the hair dryer 511 is judged to be in the installation position only when each switch detects that the hair dryer 511 is in the installation position, thereby increasing the accuracy of the detection and avoiding detection errors caused by a switch failure.

[0115] In this embodiment, the identification component 540 is a Hall switch, which includes a Hall sensor 541 and a magnet 542. The Hall sensor 541 is disposed on the main body housing 110, and the magnet 542 is disposed on the hair dryer 511. The Hall sensor 541 can sense the magnet 542. When the hair dryer 511 is in the installation position, the Hall sensor 541 senses the magnet 542 and then sends a first signal. When the hair dryer 511 is in the non-installation position, the Hall sensor 541 cannot sense the magnet 542 and then sends a second signal. The working principle of the Hall switch is a prior art and will not be described in detail here.

[0116] An installation space is provided on the hair dryer 511, and the magnet 542 is located in the installation space. The installation space is closed by a cover plate 543 to prevent the magnet 542 from falling. The cover plate 543 and the hair dryer 511 can be connected or clamped by screws.

[0117] The blower and vacuum machine further includes a second assembly structure 550, which is used to connect the blower tube 511 and the air inlet cover 520. When the blower tube 511 is in the installation position, the blower tube 511 is sleeved with the main body housing 110, and the second assembly structure 550 is in an assembly state to lock the blower tube 511 and the air inlet cover 520. Only when the air inlet cover 520 is in a closed state can the second assembly structure 550 be in an assembly state, otherwise the blower tube 511 cannot be fixed, which further limits the installation of the blower tube 511 only after the air inlet cover 520 is closed, thereby ensuring safe use.

[0118] An extension portion is formed on the main housing 110 at the position of the blowing port 102 to facilitate the installation of the hair dryer 511. During the installation of the hair dryer 511, the hair dryer 511 is sleeved on the extension portion. During the sleeve installation process, the hair dryer 511 is connected to the air inlet cover 520 through the second assembly structure 550. Fig.12 Install in the direction indicated by the arrow.

[0119] The second assembly structure 550 includes a second clamping protrusion and a second clamping hook 551. One of the air inlet cover 520 and the hair dryer 511 is provided with the second clamping protrusion, and the other of the two is provided with the second clamping hook 551. The second clamping protrusion and the second clamping hook 551 can be clamped. Specifically, the second clamping protrusion is provided on the air inlet cover 520, and the second clamping hook 551 is provided on the hair dryer 511 and is elastically connected to the hair dryer 511. In the process of sleeve-fitting the hair dryer 511 with the main body housing 110, the second clamping protrusion is pressed down from one side of the second clamping hook 551 to squeeze the second clamping hook 551, so that the second clamping hook 551 retracts. As the sleeve connection continues, the second clamping protrusion moves to the other side of the second clamping hook 551, and the second clamping hook 551 extends to limit the second clamping protrusion. When the hair dryer 511 needs to be disassembled, the second hook 551 can be retracted by pressing the second hook 551, thereby releasing the limiting effect of the second hook 551 on the second latching protrusion, and the hair dryer 511 can be disassembled by pulling the hair dryer 511.

[0120] A first handle 521 is provided on the air inlet cover 520 to facilitate opening and closing the air inlet cover 520 . A second latching protrusion is formed by means of the edge of the first handle 521 to reduce the number of parts.

[0121] The blower and vacuum machine also includes an ejection mechanism 560 , which is disposed on the main body housing 110 . When the hair dryer 511 is separated from the main body housing 110 , the ejection mechanism 560 applies a thrust to the hair dryer 511 along the separation direction, so as to facilitate rapid removal of the hair dryer 511 .

[0122] In this embodiment, the ejection mechanism 560 includes an ejection column 561 and a spring 562. The ejection column 561 is slidably connected to the main body housing 110. One end of the spring 562 abuts against the ejection column 561, and the other end of the spring 562 abuts against the main body housing 110. When the hair dryer 511 is in the installation position, the spring 562 is squeezed. When the hair dryer 511 is disassembled, the second hook 551 is pressed to retract the second hook 551, thereby releasing the second hook 551 from limiting the second protrusion. Under the elastic action of the spring 562, the hair dryer 511 is ejected outward, and the hair dryer 511 can be disassembled conveniently and labor-savingly.

[0123] In this embodiment, two groups of ejector posts 561 and springs 562 are provided, respectively located on the left and right sides of the air outlet 102 of the main body housing 110 to ensure force balance.

[0124] See also Figures 15 to 23The blower and suction machine also includes a suction assembly 710, which includes a suction cylinder 711, which is detachably arranged at the suction port 101. The blower and suction machine also includes a connecting portion 720 and a conversion member 730, which is detachably arranged at the blowing port 102. When the conversion member 730 is assembled with the connecting portion 720, the conversion member 730 can be used to install a collection bag 740, which is used to store objects sucked in by the suction cylinder 711. The conversion member 730 has a collection port 731 to collect the sucked objects, and the area of ​​the collection port 731 is greater than or equal to 250 square centimeters. In some embodiments, the area of ​​the collection port 731 is greater than or equal to 300 square centimeters. In some embodiments, the area of ​​the collection port 731 is greater than or equal to 350 square centimeters. In one embodiment, the area of ​​the collection port 731 is approximately 375 square centimeters.

[0125] The blower and suction machine has a blowing mode and a suction mode. When the blower and suction machine is in the suction mode, the sucked object is sucked from the suction cylinder 711, passes through the suction port 101 to reach the cutting assembly 420 to be cut, and then passes through the blowing port 102 through the conversion member 730 to enter the collection bag 740. Since the conversion member 730 has a collection port 731 to collect the sucked object, the area of ​​the collection port 731 is large, and after the collection is completed, it is convenient to dump the sucked object. In addition, the collection port 731 in this embodiment is basically rectangular, which can produce a larger collection area than a circular or elliptical collection port.

[0126] By cooperating with the conversion member 730 and the connecting part 720, the collecting bag 740 is connected to the blowing port 102, so that the inhaled objects can enter the collecting bag 740. When disassembling the collecting bag 740, only the conversion member 730 needs to be disassembled. There is no design such as cable ties or zippers, and it is easy to disassemble and assemble without worrying about damage to the zipper.

[0127] One side of the connection part 720 is rotationally connected to the conversion member 730, and the other side of the connection part 720 is locked or released with the conversion member 730 through a first matching structure. When the connection part 720 and the conversion member 730 are in a rotationally connected state, the first matching structure can switch between a locked state and a released state. When installing the conversion member 730, one side of the conversion member 730 is rotationally connected to the connection part 720, and then the conversion member 730 and the connection part 720 are locked through the first matching structure; when removing the conversion member 730, the first matching structure is switched from a locked state to a released state, so that one side of the conversion member 730 is separated from the connection part 720, and the side of the conversion member 730 that is rotationally connected to the connection part 720 can be easily removed, so that the conversion member 730 can be quickly removed, and the collection bag 740 can be quickly removed.

[0128] The first matching structure can be switched between a locked state and a released state by a single hand. Specifically, an operating handle 733 is provided on the conversion member 730. When the operating handle 733 is grasped by the palm, the operating portion of the first matching structure is within the operable range of the fingers of the same palm. The finger used to operate the operating portion can be any of the five fingers. By operating the operating portion, the first matching structure is switched from a locked state to a released state. When installing the conversion member 730, the palm grasps the operating handle 733 so that the conversion member 730 is rotatably connected to the connecting portion 720. At the same time, the operating portion of the first matching structure is within the operable range of the fingers of the same palm. The finger used to operate the operating portion can be any of the five fingers. By operating the operating portion, the first matching structure is switched from a released state to a locked state.

[0129] The connection part 720 is connected to the conversion member 730 for rotational connection. One of the connection part 720 and the conversion member 730 is provided with a first support shaft 721, and the other is provided with a first groove 732. The first support shaft 721 can be inserted into the first groove 732 and the conversion member 730 can rotate around the axis of the first support shaft 721. When installing the conversion member 730, the operating handle 733 is grasped by the palm of the hand so that the first support shaft 721 is inserted into the first groove 732. By rotating the conversion member 730 and operating the operating part, the first matching structure can be switched to a locked state. In some embodiments, the first matching structure can be a magnetic attraction component.

[0130] The force direction in which the user operates the first matching structure to convert the first matching structure from the locked state to the released state is the same as the direction in which the conversion member 730 moves away from the host housing 110. Therefore, the conversion member 730 can be disassembled in one action, which is quick and labor-saving.

[0131] The conversion member 730 is provided with an operating handle 733 for user operation, and the shortest distance between the first matching structure and the operating handle 733 is less than or equal to 10 cm. The user holds the operating handle 733 and applies force to the first matching structure, which can convert the first matching structure from a locked state to a released state and allow the conversion member 730 to rotate around the connecting portion 720. The user can operate the first matching structure with the thumb and hold the operating handle 733 with the remaining four fingers, so that the adapter can be unlocked and rotated open with one hand, and the operation is smooth and labor-saving without any jamming. Fig.23 In FIG. 7 , S1 represents the shortest distance between the first matching structure and the operating handle 733 .

[0132] In some embodiments, the shortest distance between the first matching structure and the operating handle 733 is less than or equal to 8 cm. In some embodiments, the shortest distance between the first matching structure and the operating handle 733 is less than or equal to 7 cm. In some embodiments, the shortest distance between the first matching structure and the operating handle 733 is less than or equal to 6 cm. In some embodiments, the shortest distance between the first matching structure and the operating handle 733 is less than or equal to 5 cm.

[0133] In this embodiment, the first matching structure includes a third locking protrusion 722 and an operating member 734. The third locking protrusion 722 is provided on the connecting portion 720, and the operating member 734 is provided on the conversion member 730. The operating member 734 can be engaged with the third locking protrusion 722 to be in a locked state. The first matching structure can be switched from the locked state to the released state by pressing the operating member 734. During installation, the conversion member 730 is plugged into the connecting portion 720, and the operating member 734 is moved close to the third locking protrusion 722 by rotating the conversion member 730. The operating member 734 is pressed so that the operating member 734 avoids the third locking protrusion 722, so that the third locking protrusion 722 moves from one side of the operating member 734 to the other side. The operating member 734 is released so that the operating member 734 is engaged with the third locking protrusion 722 to limit the third locking protrusion 722. During disassembly, one hand holds the operating handle 733 and presses the operating member 734 to separate the operating member 734 from the third locking protrusion 722 . The operating member 734 is moved away from the third locking protrusion 722 by rotating the conversion member 730 .

[0134] In this embodiment, the operating member 734 is an elastic buckle, and an operating portion is formed on the operating member 734 to facilitate pressing the operating member 734 .

[0135] Regarding the installation of the air suction cylinder 711 and the main body housing 110, the air suction cylinder 711 can be installed at the air suction port 101 only after the air inlet cover 520 is opened. One side of the air suction cylinder 711 is plugged into the main body housing 110, and the other side of the air suction cylinder 711 is locked or released with the main body housing 110 through the second matching structure. When the air suction cylinder 711 and the main body housing 110 are in the plugged state, the second matching structure can switch between the locked state and the released state. When installing the air suction cylinder 711, plug one side of the air suction cylinder 711 into the main body housing 110, and then lock the air suction cylinder 711 and the main body housing 110 through the second matching structure; when disassembling the air suction cylinder 711, the second matching structure is switched from the locked state to the released state, so that one side of the air suction cylinder 711 is separated from the main body housing 110, and the side of the air suction cylinder 711 plugged into the main body housing 110 can be easily disassembled, so that the air suction cylinder 711 can be quickly disassembled.

[0136] The suction cylinder 711 is plugged into the main housing 110. One of the suction cylinder 711 and the main housing 110 is provided with a second support shaft 7112, and the other is provided with a second groove 1141. The second support shaft 7112 can be inserted into the second groove 1141 and the suction cylinder 711 can rotate around the axis of the second support shaft 7112. In this embodiment, the second groove 1141 is provided on the main housing 110. Specifically, a hook 114 is provided on the main housing 110. The hook 114 surrounds the second groove 1141. The hook 114 is provided on the inner side of the air inlet cover 520. Only when the air inlet cover 520 is opened, the hook 114 can be exposed, and the suction cylinder 711 can be installed at the air inlet 101.

[0137] When installing the suction cylinder 711, hold the second handle 7111 on the suction cylinder 711 so that the second support shaft 7112 is inserted into the second groove 1141, and the second matching structure can be switched to a locked state by rotating the suction cylinder 711. In some embodiments, the second matching structure can be a magnetic attraction component.

[0138] In this embodiment, the second matching structure includes a first protrusion 7113, the first protrusion 7113 is arranged on the air suction cylinder 711, and the first hook 532 is arranged on the main body housing 110 and is elastically connected to the main body housing 110. During the installation of the air suction cylinder 711, the first protrusion 7113 is pressed down from one side of the first hook 532 to squeeze the first hook 532, so that the first hook 532 retracts. As the air suction cylinder 711 continues to rotate, the first protrusion 7113 moves to the other side of the first hook 532, and the first hook 532 extends to limit the first protrusion 531. Among them, the first hook 532 arranged on the main body housing 110 can lock the air inlet cover 520 or the air suction cylinder 711, saving the number of parts.

[0139] The identification component 540 is used to identify the position of the blower 511. In the suction mode, the blower 511 is not used at the blowing port 102, but the collection bag 740 is installed. The identification component 540 is used to identify the position of the connection part 720. The connection part 720 can be in the installation position or the non-installation position. When the suction cylinder 711 is in the assembly state, the connection part 720 can be installed to the installation position. In the installation position, the adapter can cooperate with the connection part 720. Only after the suction cylinder 711 is installed, the connection part 720 and the conversion part 730 can be installed to prevent the suction cylinder 711 from being found not installed after the collection bag 740 is installed and turned on, and the cutting component 420 is exposed, which poses a safety hazard.

[0140] The control board 300 has a starting circuit for controlling the start or stop of the blower-vacuum machine; wherein, when the connection portion 720 is in a non-installation position, the starting circuit is in a disconnected state, and the blower-vacuum machine is in a stopped state; when the connection portion 720 is in an installation position, the starting circuit is in a conducting state, and the blower-vacuum machine is in a waiting state. The control board 300 can receive a signal from the identification component 540, and control the state of the starting circuit according to the signal. When the connection portion 720 is in a non-installation position, the blower-vacuum machine is in a stopped state and cannot be started. The control board 300 can use an existing circuit board, and the circuit on the circuit board can be set according to actual needs.

[0141] In this embodiment, the identification component 540 is a Hall switch, which includes a Hall sensor 541 and a magnet 542. The Hall sensor 541 is disposed on the host housing 110, and the magnet 542 is disposed on the connecting portion 720. The Hall sensor 541 can sense the magnet 542. When the connecting portion 720 is in the installation position, the Hall sensor 541 senses the magnet 542 and then sends a first signal. When the connecting portion 720 is in the non-installation position, the Hall sensor 541 cannot sense the magnet 542 and then sends a second signal. The working principle of the Hall switch is a prior art and will not be described in detail here.

[0142] From the above, it can be seen that no matter whether the connecting part 720 is in the installation position or the hair dryer 511 is in the installation position, the Hall switch can be triggered, so that the starting circuit is in the on state and the blower-vacuum machine is in the standby state.

[0143] Regarding the installation of the connecting portion 720 and the air suction cylinder 711, an extension portion is formed on the main housing 110 at the position of the air outlet 102, and the connecting portion 720 is sleeved on the extension portion and snapped with the air suction cylinder 711. A second protrusion is provided on one of the air suction cylinder 711 and the connecting portion 720, and an elastic hook 723 is provided on the other of the two, and the second protrusion and the elastic hook 723 can be snapped. Specifically, the second protrusion is provided on the air suction cylinder 711, and the elastic hook 723 is provided on the connecting portion 720. In the process of sleeve-fitting the connecting portion 720 with the main housing 110, the second protrusion is pressed down from one side of the elastic hook 723 to squeeze the elastic hook 723, so that the elastic hook 723 retracts, and as the sleeve continues, the second protrusion moves to the other side of the elastic hook 723, and the elastic hook 723 extends to limit the second protrusion. When the connecting portion 720 needs to be disassembled, the elastic hook 723 can be retracted by pressing the elastic hook 723, thereby releasing the position restriction of the second protrusion by the elastic hook 723, and the connecting portion 720 can be disassembled by pulling the connecting portion 720.

[0144] A second handle 7111 is provided on the suction cylinder 711 to facilitate installation and removal of the suction cylinder 711. A second protrusion is formed by the edge of the second handle 7111 to reduce the number of parts.

[0145] The blowing tube 511 and the suction tube 711 may have the same structure, i.e. one tube has two usage modes, or may have different structures, i.e. two tubes. In this embodiment, the blowing tube 511 and the suction tube 711 have different structures, and the cross-sectional area of ​​the blowing tube 511 gradually decreases along the flow direction of the air flow to increase the air outlet speed and pressure; the end of the suction tube 711 away from the air suction port 101 is provided with a bell mouth to increase the air suction area.

[0146] The blower-vacuum machine has many accessories, including a blower tube 511, a suction tube 711, and a collection bag 740. Different accessories are required in different usage conditions, so it is very easy for the accessories to be lost due to long-term non-use.

[0147] See also Fig.15 and Fig.24 A hook is provided on the suction tube 711 to facilitate the hooking of the collection bag 740, so that the collection bag 740 is suspended, occupies little space, and is convenient for operation. Fig.24 When the hair dryer 511 and the suction tube 711 are two independent hair dryers, in order to facilitate storage, the hair dryer 511 and the suction tube 711 can be detachably connected, specifically, they can be snap-connected or magnetically connected. When using the suction tube 711, the hair dryer 511 is installed on the suction tube 711 to reduce space occupancy. At this time, the hair dryer 511 does not play any functional role and is only stored on the suction tube 711.

[0148] See also Figure 25 to Figure 29 The fan assembly 410 can not only form an airflow for suction, but also dissipate heat for the motor 200. In one embodiment, the fan assembly 410 includes a centrifugal fan, which has a large suction force and improves work efficiency. The motor 200 has a motor axis 201, and the axis of the fan assembly 410 and the rotation axis 4201 of the cutting assembly 420 both coincide with the motor axis.

[0149] The fan assembly 410 includes a support plate 411, a first blade 412 disposed on one side of the support plate 411, and a second blade 413 disposed on the other side of the support plate 411. The first blade 412 is located on the side of the support plate 411 away from the motor 200, and the second blade 413 is located on the side of the support plate 411 close to the motor 200. When the fan assembly 410 rotates, the first blade 412 is mainly used to absorb wind, and the second blade 413 is mainly used to dissipate heat from the motor 200.

[0150] The first blade 412 extends along a curve, one end of the first blade 412 is disposed in the middle of the support plate 411, the other end of the first blade 412 extends to the edge of the support plate 411, and the diameter of the first blade 412 is equal to the diameter of the support plate 411. The diameter of the first blade 412 is greater than or equal to 180 cm, and has greater suction. In one embodiment, the diameter of the first blade 412 is greater than or equal to 185 cm; in another embodiment, the diameter of the support plate 411 is greater than or equal to 190 cm.

[0151] The diameter of the second blade 413 is smaller than the diameter of the support plate 411. The ratio of the diameter of the second blade 413 to the diameter of the first blade 412 is between 0.7 and 0.9. In one embodiment, the ratio of the diameter of the second blade 413 to the diameter of the first blade 412 is 0.8. The ratio of the height of the first blade 412 along the direction perpendicular to the support plate 411 to the height of the second blade 413 along the direction perpendicular to the support plate 411 is between 0.2 and 0.3. In one embodiment, the ratio of the height of the first blade 412 along the direction perpendicular to the support plate 411 to the height of the second blade 413 along the direction perpendicular to the support plate 411 is 0.25.

[0152] like Fig.28 and 28 As shown, the inner cavity of the main housing 110 is in the shape of an Archimedean spiral, forming a spiral air duct to throw the wind out from the air outlet 102. Therefore, the gap between the outer edge of the support plate 411 and the inner wall of the main housing 110 is uneven, and the minimum gap G1 is greater than or equal to 7mm, and the maximum gap G2 is less than or equal to 75mm. If the minimum gap is too small, it is easy to generate noise, and if the minimum gap is too large, it will cause efficiency loss. If the maximum gap is too small or too large, it will affect the efficiency. If the maximum gap is too large, it will cause the size of the whole machine to be too large. Therefore, reasonable setting of the minimum gap and the maximum gap can reduce noise and improve efficiency. Fig.29 In FIG. 4 , D0 represents the diameter of the first blade 412 , G1 represents the minimum gap, and G2 represents the maximum gap.

[0153] See also Figure 30 to Figure 34 The cutting assembly 420 includes a base 421 connected to a plurality of blades and at least three blades, the starting points of the blades are connected to the base 421, and the base 421 can rotate around a rotation axis 4201. All blades on the base 421 can be the same blade, for example, all are first blades 422. All blades on the base 421 can be divided into two types, namely, the first blade 422 and the second blade 423.

[0154] In some embodiments, only the first blades 422 are disposed on the base 421 , and the number of the first blades 422 is greater than or equal to three to ensure sufficient cutting efficiency.

[0155] In other embodiments, the base 421 is provided with a first blade 422 and a second blade 423, and the total number of the blades is greater than or equal to three to ensure sufficient cutting capacity. In one embodiment, the number of the first blade 422 is greater than or equal to one, and the number of the second blade 423 is greater than or equal to two. In another embodiment, the number of the first blade 422 is greater than or equal to two, and the number of the second blade 423 is greater than or equal to one.

[0156] In this embodiment, the base 421 is provided with a first blade 422 and a second blade 423 , the number of the first blades 422 is equal to three, the number of the second blades 423 is equal to three, and the first blades 422 and the second blades 423 are alternately arranged to ensure uniform force.

[0157] The first blade 422 is connected to the base 421, and the first blade 422 can rotate with the base 421 around the rotation axis 4201 to achieve the cutting function. The first blade 422 includes a first cutting portion 4221 extending along the first straight line 401 and a second cutting portion 4222 extending along the second straight line 402. The first cutting portion 4221 is connected to the base 421, and the first cutting portion 4221 is located between the base 421 and the second cutting portion 4222. The first straight line 401 and the second straight line 402 do not overlap. Through the structural setting of the first blade 422, the first blade 422 is bent, has a larger cutting area and a better shredding effect, and has a higher crushing ratio. This solves the problem of not being able to cut cleanly or shred, and thus not being easy to collect and easy to get stuck in the prior art.

[0158] The first straight line 401 and the second straight line 402 form a first angle, and the first angle is greater than 0 degrees and less than 90 degrees. Fig.31 In one embodiment, the first angle α is greater than or equal to 5 degrees and less than or equal to 85 degrees. In one embodiment, the first angle α is greater than or equal to 10 degrees and less than or equal to 80 degrees. In one embodiment, the first angle α is greater than or equal to 20 degrees and less than or equal to 70 degrees. In one embodiment, the first angle α is greater than or equal to 30 degrees and less than or equal to 70 degrees. In one embodiment, the first angle α is greater than or equal to 40 degrees and less than or equal to 70 degrees. In some embodiments, the first angle α may be approximately 45 degrees, 55 degrees, 60 degrees, 65 degrees, or 70 degrees.

[0159] The first straight line 401 forms a second angle with the rotation axis 4201, and the second angle is less than 90 degrees. Fig.31In the embodiment, the second angle β is represented by β. In some embodiments, the second angle β is greater than or equal to 10 degrees and less than or equal to 80 degrees. In some embodiments, the second angle β is greater than or equal to 20 degrees and less than or equal to 80 degrees. In other embodiments, the second angle β is greater than or equal to 30 degrees and less than or equal to 70 degrees. In some embodiments, the second angle β is approximately 40 degrees, 45 degrees, 50 degrees, or 55 degrees.

[0160] The starting point of the first cutting portion 4221 is connected to the base portion 421, and the end point of the first cutting portion 4221 is connected to the second cutting portion 4222. The first cutting portion 4221 extends outwardly obliquely relative to the base portion 421 from the starting point to the end point; the starting point of the second cutting portion 4222 is connected to the first cutting portion 4221, and the second cutting portion 4222 extends outwardly obliquely relative to the first cutting portion 4221 from the starting point to the end point. The first cutting portion 4221 and the second cutting portion 4222 are both inclined outwardly, so that the cutting assembly 420 has a larger cutting area, ensuring a better cutting effect.

[0161] The first blade 422 further includes a transition portion 4223, which is located between the first cutting portion 4221 and the second cutting portion 4222. The transition portion 4223 is substantially arc-shaped. The first cutting portion 4221 is smoothly connected with the second cutting portion 4222 through the transition portion 4223, which reduces stress and facilitates processing and production.

[0162] Since the cutting assembly 420 and the fan assembly 410 are both disposed on the motor shaft 220, the cutting assembly 420 and the fan assembly 410 cannot interfere with each other. Fig.26 and Fig.28 As shown, on the one hand, the ends of the first blades 412 close to the middle of the support plate 411 are spaced apart from each other to form a clearance space in the middle of the support plate 411, which is convenient for installing the base 421 of the cutting assembly 420 and accommodating some blades. On the other hand, the setting position of the transition portion 4223 should ensure that the first cutting portion 4221 and the transition portion 4223 will not interfere with the first blade 412, and also ensure that the second cutting portion 4222 will not interfere with the main body housing 110, so the length of the first cutting portion 4221 along the direction of the first straight line 401 and the length of the second cutting portion 4222 along the direction of the second straight line 402 should be within an appropriate range.

[0163] The length of the first cutting portion 4221 along the direction of the first straight line 401 is the first length L1, and the length of the second cutting portion 4222 along the direction of the second straight line 402 is the second length L2, and the first length L1 is greater than the second length L2. In some embodiments, the first length L1 is greater than or equal to 35 mm and less than or equal to 80 mm. The second length L2 is greater than or equal to 10 mm and less than or equal to 35 mm. In some embodiments, the first length L1 is approximately 50 mm, 55 mm, 60 mm, or 65 mm, and the second length L2 is approximately 15 mm, 17 mm, or 20 mm.

[0164] In some embodiments, the first length L1 is greater than or equal to 25 mm and less than or equal to 45 mm, and the first length L1 may be approximately 30 mm, 35 mm, or 40 mm; the second length L2 is greater than or equal to 10 mm and less than or equal to 35 mm, and the second length L2 may be approximately 15 mm, 20 mm, 25 mm, or 30 mm. In one embodiment, the first length L1 is approximately 37 mm, and the second length L2 is approximately 20 mm. In one embodiment, the first length L1 is approximately 40 mm, and the second length L2 is approximately 20 mm. In one embodiment, the first length L1 is approximately 35 mm, and the second length L2 is approximately 20 mm.

[0165] One end of the second blade 423 is connected to the base 421, and the second blade 423 extends along the third straight line. The second blade 423 extends along the straight line without bending through the structural setting of the second blade 423. When a stall occurs, the rotation of the second blade 423 can achieve a dredging effect and has a blocking effect.

[0166] The second blade 423 has a third cutting portion, and the length of the third cutting portion is a third length L3. In one embodiment, the ratio of the difference between the first length L1 and the third length L3 to the third length L3 is less than or equal to 30%, and the ratio of the difference between the first length L1 and the third length L3 to the third length L3 is less than or equal to 20%.

[0167] Regarding the blades arranged on the base 421, the total blade length of the blade is defined as the total length of the line connecting the starting point and the end point of the blade. There are at least two types of blades, namely the first blade 422 and the second blade 423. The total blade length of the first blade 422 is greater than the total blade length of the second blade 423. In other words, the total blade length of the first blade 422 is the first total length T1, and the total blade length of the second blade 423 is the second total length T2, and the first total length T1 is greater than the second total length T2. By setting different total blade lengths, different cutting ranges are provided, and longer blades can achieve higher crushing ratios, and shorter blades can avoid blocking.

[0168] The first blade 422 includes a first cutting portion 4221 and a second cutting portion 4222. The first cutting portion 4221 extends along the first straight line 401, and the second cutting portion 4222 extends along the second straight line 402. The starting point of the first cutting portion 4221 is connected to the base portion 421, and the end point of the first cutting portion 4221 is connected to the transition portion 4223. The first cutting portion 4221 extends outwardly obliquely relative to the base portion 421 from the starting point to the end point; the starting point of the second cutting portion 4222 is connected to the transition portion 4223, and the second cutting portion 4222 extends outwardly obliquely relative to the first cutting portion 4221 from the starting point to the end point. Therefore, the total blade length of the first blade 422 is the distance between the starting point of the first cutting portion 4221 and the end point of the second cutting portion 4222.

[0169] The starting point of the second blade 423 is connected to the base 421 , and the second blade 423 extends along the third straight line without bending, so the total blade length of the second blade 423 is the distance between the starting point of the second blade 423 and the end point of the second blade 423 .

[0170] Each first blade 422 is evenly distributed around the rotation axis 4201 to ensure uniform force. A second blade 423 is arranged between two adjacent first blades 422, so that the first blade 422 and the second blade 423 are arranged alternately to ensure uniform force.

[0171] The first blade 422 and the second blade 423 are located on the same side of the base 421 , so that the first blade 422 and the second blade 423 can cooperate with each other to improve cutting efficiency.

[0172] The rotation trajectory of the first blade 422 on a plane perpendicular to the rotation axis 4201 forms a circular surface with a diameter equal to the first diameter D1, and the rotation trajectory of the second blade 423 on a plane perpendicular to the rotation axis 4201 forms a circular surface with a diameter equal to the second diameter D2, and the ratio D2 / D1 of the second diameter D2 to the first diameter D1 is greater than or equal to 0.3 and less than or equal to 0.9. In some embodiments, D2 / D1 is greater than or equal to 0.4 and less than or equal to 0.8. In other embodiments, D2 / D1 is greater than or equal to 0.5 and less than or equal to 0.8. D2 / D1 can specifically be 0.65 or 0.7 or 0.75.

[0173] The first blade 422 has a first cutting plane 4224, and the second blade 423 has a second cutting plane 4231. The first cutting plane 4224 and the second cutting plane 4231 form a third angle, which has more cutting angles. Along the rotation direction of the base 421, the first cutting plane 4224 is arranged at the front side of the first blade 422, and the second cutting plane 4231 is arranged at the front side of the second blade 423, so that the cutting plane can fully contact the inhaled object. Specifically, the first cutting plane 4224 is arranged at the second cutting portion 4222 of the first blade 422, and the second cutting plane 4231 is arranged at the end of the second blade 423.

[0174] In one embodiment, a cutting assembly suitable for a blower includes a base that can rotate around a rotation axis; a first blade connected to the base, the first blade can rotate with the base around the rotation axis to achieve a cutting function; and a second blade that can also rotate with the base around the rotation axis to achieve a cutting function, and the second blade and the first blade have different geometric structures. It should be noted that deformation caused by the manufacturing process or during use and transportation does not fall within the scope of discussion of this application.

[0175] It should be noted that the first cutting portion 4221 may include a cutting plane or may not include a cutting plane. In this embodiment, the first cutting portion 4221 does not include a cutting plane, but the sucked fallen leaves will also be "cut" to a certain extent during the rotation of the first cutting portion 4221. In this embodiment, a first cutting plane 4224 is formed on the second cutting portion 4222, and the first cutting plane 4224 assumes the main cutting function of the first blade 422.

[0176] Fig.35 An embodiment of a cutting assembly 420a is disclosed. The cutting assembly 420a includes a base 421 connected to a plurality of blades and a plurality of first blades 422, and the base 421 is capable of rotating around a rotation axis 4201. In this embodiment, six first blades 422 are arranged on the base 421, and the six first blades 422 are evenly spaced along the circumferential direction. In some other embodiments, the number of the first blades 422 can be three, four, five, seven or eight.

[0177] Fig.35 The first blade 422 of the cutting assembly 420 is Figure 30 to Figure 31The first blade 422 in the cutting assembly 420a shown has the same characteristics. The first blade 422 includes a first cutting portion 4221 extending along the first straight line 401 and a second cutting portion 4222 extending along the second straight line 402. The first cutting portion 4221 is connected to the base 421, and the first cutting portion 4221 is located between the base 421 and the second cutting portion 4222. The first straight line 401 and the second straight line 402 do not overlap. The length of the first cutting portion 4221 along the direction of the first straight line 401 is a first length L1, and the length of the second cutting portion 4222 along the direction of the second straight line 402 is a second length L2, and the first length L1 is greater than the second length L2. The first straight line 401 and the second straight line 402 form a first angle α, and the first angle α is greater than 0 degrees and less than 90 degrees. The first straight line 401 and the rotation axis 4201 form a second angle β, and the second angle β is less than 90 degrees. The line connecting the starting point and the end point of the first blade 422 is the first total length T1. For the definition of the first length L1, the second length L2, the first angle α, the second angle β and the first total length T1, Figure 30 to Figure 32 The same as in the related description, will not be repeated here.

[0178] The blower and vacuum machine provided by the present application, when using the blowing mode, the first assembly structure 530 is in an assembled state, the air inlet cover 520 is closed, the hair dryer 511 is in the installation position, the identification component 540 identifies the position of the hair dryer 511, the start circuit is in a conducting state, and the blower and vacuum machine is in a standby state. The user holds the main handle 610 with one hand to turn it on, off or adjust the speed. In the on state, the motor 200 drives the fan assembly 410 to rotate to generate suction, so that the airflow passes through the air inlet cover 520, enters the air suction port 101, reaches the motor 200, and then flows out from the air outlet 102 through the hair dryer 511. At the same time, the airflow flows in from the heat dissipation port 103, passes through the control board 300 and the motor 200 in sequence, and then flows out from the air outlet 102.

[0179] When it is necessary to switch to the suction mode, when the suction blower is in the off state, the second assembly structure 550 is operated to release the limit of the hair cylinder 511, and the hair cylinder 511 is ejected outward under the action of the ejection mechanism 560. After the hair cylinder 511 is removed, the first assembly structure 530 is operated to release the limit of the air inlet cover 520, and the air inlet cover 520 is rotated to open, exposing the hook 114. Both the removal of the hair cylinder 511 and the opening of the air inlet cover 520 can be completed by single-handed operation.

[0180] When installing the suction cylinder 711 to the air inlet 101, the second handle 7111 on the suction cylinder 711 is grasped by hand to plug the suction cylinder 711 into the hook 114, and the second matching structure can be switched to a locked state by rotating the suction cylinder 711. After installing the suction cylinder 711, the connecting portion 720 and the conversion member 730 can be assembled first, and then the connecting portion 720 and the suction cylinder 711 can be connected. Alternatively, the connecting portion 720 and the suction cylinder 711 can be assembled first, and then the conversion member 730 and the connecting portion 720 can be connected.

[0181] In this embodiment, the connecting part 720 is first assembled with the conversion member 730, and then the connecting part 720 is connected with the suction cylinder 711. One side of the conversion member 730 is plugged into the connecting part 720, and the first matching structure is locked by rotating the conversion member 730. In the process of sleeve-mounting the connecting part 720 on the main body housing 110, the connecting part 720 and the suction cylinder 711 are engaged to be locked in the installation position, triggering the identification component 540, the start circuit is in the on state, and the blower and suction machine is in the waiting state. In the power-on state, the motor 200 drives the fan assembly 410 to rotate to generate suction, so that the airflow passes through the suction cylinder 711 and enters the suction port 101 to reach the motor 200, and then passes through the conversion member 730 from the blowing port 102 to reach the collection bag 740. At the same time, the airflow flows in from the heat dissipation port 103, passes through the control board 300 and the motor 200 in sequence, and then flows out from the blowing port 102.

[0182] When the inhaled material in the collection bag 740 needs to be poured out, when the blower is in the off state, the user holds the operating handle 733 on the conversion member 730 by the palm, and the operating part of the first matching structure is within the operable range of the fingers of the same palm. The user operates the first matching structure to convert the first matching structure from the locked state to the released state, and the conversion member 730 can be disassembled in one action. After pouring out the inhaled material, the conversion member 730 is installed. Holding the operating handle 733 by the palm, the conversion member 730 is plugged into the connecting part 720, and the operating part of the first matching structure is within the operable range of the fingers of the same palm. By operating the operating part, the first matching structure is switched from the released state to the locked state.

[0183] When it is necessary to switch to the blowing mode, when the blower is in the off state, the elastic hook 723 can be pressed to retract the elastic hook 723, thereby releasing the limit of the second protrusion by the elastic hook 723, and the connecting part 720 can be disassembled by pulling the connecting part 720, and the conversion member 730 and the collection bag 740 can be disassembled together. When disassembling the suction cylinder 711, the second matching structure is switched from the locking state to the releasing state, so that one side of the suction cylinder 711 is separated from the main body shell 110, and the side of the suction cylinder 711 plugged with the main body shell 110 can be easily disassembled, so that the suction cylinder 711 can be quickly disassembled. Afterwards, the air inlet cover 520 can be rotated so that the first assembly structure 530 is in the assembly state, so that the air inlet cover 520 remains in the closed state to prevent the cutting assembly 420 from being exposed.

[0184] In the suction mode, when the suction cylinder 711 is used to perform operations such as sucking fallen leaves, in order to prevent metal parts such as iron filings from being sucked into the blower and vacuum machine, which would adversely affect the operation of the cutting assembly 420, a magnetic part can be provided at the front end of the suction cylinder 711. The magnetic part can absorb the metal parts in the sucked objects and prevent the metal parts from being sucked into the blower and vacuum machine, thereby reducing safety hazards.

[0185] Fig.36 and Fig.37 FIG. 1 is a schematic diagram of another embodiment of the present application. Figure 1 and Figure 2 In the disclosed embodiment, the speed regulating device 630 is arranged in front of the gripping area 611, and the speed regulating device 630 is also arranged in front of the main switch 620. In this way, whether in the suction mode or the blowing mode, the speed regulating device 630 is located near the main switch 620, which is convenient for the user to operate.

[0186] And in Fig.36 and Fig.37 In another embodiment provided, the speed regulating device 630a is arranged at the rear side of the gripping area 611a, the speed regulating device 630a is arranged at the rear side of the main handle 610a, the speed regulating device 630a is also arranged at the rear side of the main switch 620a, and the disassembly device 810 is partially arranged at the rear side of the speed regulating device 630. With such an arrangement, the user can use a hand different from the hand holding the main handle 610a to adjust the speed regulating device 630a, and the speed regulating device 630a is at the rear side of the main handle 610a, so that the wrist of the hand holding the main handle 610a will not interfere with the hand operating the speed regulating device 630a, which is also a design convenient for users.

[0187] In addition, the battery pack 800 is provided with a disassembly device 810, and the user can disassemble the battery pack 800 by operating the disassembly device 810. In the above two different embodiments, the disassembly device 810 is located at the rear side of the main handle 610a and is connected to the main handle 610a. When disassembling the battery pack 800, the user can hold or put his hand on the main handle 610a, which is convenient and labor-saving.

[0188] like Fig.38 As shown, the control method of the blowing-suction machine involved in this application is introduced below.

[0189] In the present embodiment, the blowing and suction machine is provided with a main switch 620 and a speed regulating device 630. The motor 200 can be turned on by operating the main switch 620 or the speed regulating device 630 alone, so that the motor 200 is in a running state. In one embodiment, the user can operate only the main switch 620 to start the motor 200. Taking the main switch 620 in the form of a trigger as an example, the user presses the trigger to start the motor 200, and the deeper the user presses, the greater the speed of the motor 200 is adjusted. In another embodiment, the user can operate only the speed regulating device 630 to turn on the motor. Taking the speed regulating device 630 in the form of a dial as an example, the user turns the dial, the motor 200 starts, and runs at the speed specified by the dial.

[0190] It should be noted that when the main switch 620 and the speed regulating device 630 output speed regulating instructions at the same time, the blowing and sucking machine executes with the higher speed of the instructions issued by the two as the final instruction. When the main switch 620 and the speed regulating device 630 output two different speed instructions at the same time, the motor 200 runs at the higher speed of the two different speed instructions. For example, the main switch 620 outputs a first speed instruction 621, which instructs the motor 200 to run at a first speed V1, and the speed regulating device 630 outputs a second speed instruction 631, which instructs the motor 200 to run at a second speed V2. After the control board 300 collects the first speed instruction 621 and the second speed instruction 631, it compares the first speed V1 and the second speed V2, determines the higher speed of the first speed V1 and the second speed V2, and feeds back the motor 200 to run at the higher speed.

[0191] Now, a common working condition is taken as an example to illustrate the benefits of the above control method. When the user needs the motor 200 to output the preset speed S1 for a long time, the speed regulating device 630 can be adjusted to the required speed value, and the operation of the main switch 620 can be disconnected at the same time, which is equivalent to the main switch 620 outputting a zero speed, and the motor 200 runs at the preset speed S1 output by the speed regulating device 630, thereby greatly alleviating the tension of the fingers when the main switch 620 is operated for a long time. When the working condition requires a sudden acceleration for a period of time, the user can quickly operate the main switch 620 to accelerate, and after the motor 200 accelerates to the third speed S2 and maintains for a period of time (or not), the operation of the main switch 620 is disconnected. At this time, the main switch 620 is equivalent to outputting a zero speed, and the motor 200 returns to the preset speed S1. With such a setting, the user can conveniently adjust the speed without operating a certain switch for a long time (such as pressing, turning, etc.), which greatly satisfies the comfort of human-machine operation and can realize the rapid adjustment of the blowing and suction machine at different speeds.

[0192] It should be noted that the above control method is not only applicable to the blower-vacuum machine, but also to different power tools such as hair dryers, electric drills, electric wrenches, angle grinders, etc.

[0193] In addition, all technical solutions involved in the present application are not only applicable to blow-vacuum machines, but also to electric tools such as hair dryers and vacuum blowers that can perform similar functions.

[0194] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the above embodiments do not limit the present application in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the present application.

Claims

1. A blowing and suction machine, comprising: Host housing; A motor is arranged in the main engine housing; A battery pack coupling portion, used for mounting a battery pack, wherein the motor is powered by the battery pack; It is characterized in that The motor is a brushless motor, and the power of the motor is greater than 1000W; The blower-suction machine has a blowing mode and a suction mode. In the blowing mode, the thrust of the blower-suction machine is greater than 14.5N.

2. The blowing and suction machine according to claim 1, characterized in that: The capacity of the battery pack is greater than or equal to 6AH.

3. The blowing and suction machine according to claim 1, characterized in that: The power of the motor is greater than 1200W.

4. The blowing and suction machine according to claim 1, characterized in that: At least two battery packs are provided.

5. The blowing and suction machine according to claim 1, characterized in that: The capacity of the battery pack is greater than or equal to 6AH, and the power of the motor is greater than 1200W.

6. The blowing and suction machine according to claim 1, characterized in that: The thrust of the blowing and sucking machine is greater than 15.5N.

7. The blowing and suction machine according to claim 1, characterized in that: The maximum rotation speed of the motor is greater than or equal to 8000 rpm.

8. The blowing and suction machine according to claim 1, characterized in that: The maximum air volume of the blower-suction machine is greater than or equal to 480 cfm.

9. The blowing and suction machine according to claim 1, characterized in that: The maximum wind speed of the blower-suction machine is greater than or equal to 100 mph.

10. The blowing and suction machine according to claim 1, characterized in that: The rated voltage of the battery pack is greater than or equal to 40V.

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