A waterproof handle and waterproof handheld dust collector main machine

Abstract

The application provides a waterproof handle, which comprises a body, the body is provided with a partition, the partition divides an inner cavity of the body into an upper part and a lower part, the partition is provided with a first threading hole, the upper part is used for connecting a dust collection main machine, an electric connection wire is electrically connected with the dust collection main machine through the first threading hole, the first threading hole is in a sealed arrangement, the partition is provided with a water guide structure, the body is provided with a drainage hole, the water guide structure is communicated with the drainage hole, and the application has good waterproof performance.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dust collectors, in particular to a waterproof handle and a waterproof handheld dust collector main machine. BACKGROUND

[0002] The handheld dust collector main machine is the core component of the handheld dust collector, and is the main part of the handheld dust collector. By connecting different working heads to the handheld dust collector main machine, different functions can be realized. The handheld dust collector is widely welcomed by users due to its convenience of movement, and has become a main category of dust collectors.

[0003] The handheld dust collector main machine is generally used in a dry environment. However, as the use scenarios change, the waterproof requirements for the handheld dust collector main machine are becoming higher and higher. However, the handheld dust collector main machine has its particularity. As can be known from the structure of the handheld dust collector main machine, the handheld dust collector main machine needs to include a handle, and the dust collector main machine is connected to the handle. The user moves the position of the dust collector main machine by holding the handle, so as to realize the purpose of convenient movement of the handheld dust collector main machine. As can be known from the working principle of the dust collector, the dust collector needs to exhaust the airflow sucked in, so as to work normally. Therefore, it is necessary to provide an air outlet on the main machine. Because the air outlet generally cannot be provided at the part blowing to the user's hand and needs to be designed for handheld, the relative position of the dust collector main machine and the handle can be selected less. Therefore, when doing the spray verification test, it is difficult to make the air outlet and the handle avoid water by changing the relative position, so that the air outlet easily becomes a good channel for water to enter the main machine. As can be known from the working principle of the dust collector, the air outlet cannot be cancelled or closed. Under such premise, waterproof design brings great obstacles to waterproof design, and the waterproof design is difficult. Moreover, due to the need to realize the handheld function, the waterproof design difficulty is further increased.

[0004] As can be known from the above, the handle also needs to be waterproofed. Because the handle and the dust collector main machine need to be provided with a line, and some also connect a battery at the lower end of the handle, the power supply line will enter the dust collector main machine from the handle, so that the waterproof design of the handle is further increased in difficulty. SUMMARY

[0005] The technical problem to be solved by the present application is to provide a waterproof handle with good waterproof performance, and a waterproof handheld dust collector main machine with good waterproof performance.

[0006] Compared with the prior art, the application provides a waterproof handle, which comprises a body, the body is provided with a partition, the partition divides an inner cavity of the body into an upper part and a lower part, the partition is provided with a first threading hole, the upper part is used for connecting a dust collection main machine, an electric connection line is electrically connected with the dust collection main machine through the first threading hole, the first threading hole is in a sealed arrangement, the partition is provided with a water guide structure, the body is provided with a drainage hole, and the water guide structure is communicated with the drainage hole.

[0007] As an improvement, the lower part is provided with a sleeve capable of mounting an electric component and closed at an upper end, the sleeve is provided with a second threading hole, and the electric connection line sequentially passes through the second threading hole and the first threading hole to be electrically connected with the dust collection main machine from bottom to top.

[0008] As an improvement, the second threading hole is in a sealed arrangement.

[0009] As an improvement, an installation cavity is arranged above the partition, a switch assembly is arranged in the installation cavity, and the electric connection line enters the installation cavity after passing through the first threading hole.

[0010] As an improvement, the installation cavity is surrounded by a base and a cover, the base is provided with a rubber plug hole, a rubber plug is arranged in the rubber plug hole, a sealing ring is arranged at a lower end of the rubber plug, the sealing ring is tightly fixed between the base and the partition by the base, and the sealing ring is used for the sealed arrangement of the first threading hole and the rubber plug hole.

[0011] As an improvement, the upper part is provided with a longitudinal part used for supporting the dust collection main machine, the longitudinal part is provided with an inner lining, and the inner lining is arranged above the partition.

[0012] As an improvement, the installation cavity is surrounded by a base and a cover, and the cover is the inner lining.

[0013] As an improvement, the drainage hole is arranged at a front of the body and at a lower side of a trigger guard ring.

[0014] As an improvement, a circumferentially extending skirt is arranged at a lower end of the lower part, the lower end of the lower part is used for connecting a battery, the battery is arranged at a lower side of the skirt, and the skirt can be used as a water blocking part of the battery.

[0015] After the above structure is adopted, compared with the prior art, the application has the following advantages: after such a design, water can be effectively prevented from entering the lower part, even if the water flow is relatively large, the water can be quickly drained due to the design of the partition, the water guide structure and the drainage hole, and therefore the waterproof performance is relatively good.

[0016] Compared with the prior art, the application provides a waterproof handheld dust collector main machine, which comprises a handle and a dust collection main machine, the handle is connected with the dust collection main machine, and the handle adopts the waterproof handle.

[0017] As an improvement, the handle is positioned substantially transversely to a longitudinal axis of the dust collection main machine, the longitudinal axis extends from a front end of the dust collection main machine to a rear end of the dust collection main machine.

[0018] Inlet, positioned in front of the handle;

[0019] The dust collection main machine is configured to suck dirty air into the separator of the dust collection main machine through the inlet, and to discharge clean air from the dust collection main machine through the air outlet;

[0020] A waterproof ring is arranged between the dust collection main machine and the handle, and the waterproof ring is located above the partition.

[0021] As an improvement, the waterproof ring is arranged at the lower part of the dust collection main machine, and the waterproof ring cooperates with the mounting port of the handle after the dust collection main machine and the handle are combined vertically.

[0022] After the above structure is adopted, compared with the prior art, the waterproof handle has the following advantages: the waterproof handle has important significance in the waterproof of the handheld dust collector main machine, and the waterproof handle not only undertakes the task of protecting the internal electrical components, but also timely drains the water from other parts, so that the waterproof performance of the handheld dust collector main machine reaches a higher level. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 Fig. 1 is a perspective view of the dust collection main machine of the waterproof handheld dust collector main machine of the present application.

[0024] Figure 2 Fig. 2 is a perspective view of the dust collection main machine without the shell. Figure 1 Fig. 3 is a perspective view of the dust collection main machine without the shell.

[0025] Figure 3 Fig. 4 is a bottom view of the part where the fan is located.

[0026] Figure 4 Fig. 5 is a sectional view along the direction of A-A.

[0027] Figure 5 Fig. 6 is a perspective view of the front side of the waterproof shell.

[0028] Figure 6 Fig. 7 is a perspective view of the front side of the waterproof shell. Figure 5 Fig. 8 is a perspective view of the front side of the waterproof shell, which further shows the second air outlet waterproof part, the third air outlet waterproof part and the fan.

[0029] Figure 7 Fig. 9 is a perspective view of the front side of the waterproof shell, which further shows the filter. Figure 6 Fig. 10 is a perspective view of the front side of the waterproof shell, which further shows the filter.

[0030] Figure 8 Fig. 11 is a perspective view of the rear side of the waterproof shell.

[0031] Figure 9 Fig. 12 is a perspective view of the shell.

[0032] Figure 10 Fig. 13 is a perspective view of the shell after the third air outlet waterproof part and the rubber plug are mounted.

[0033] Figure 11 Figure 1 is a perspective view of a waterproof handheld vacuum cleaner main machine according to the present application.

[0034] Figure 12 Figure 2 is an exploded view of the vacuum cleaner main machine and the handle.

[0035] Figure 13 Figure 3 is a half-section view of the handle.

[0036] Figure 14 Figure 4 is an enlarged view of A.

[0037] Figure 15 Figure 5 is an upper perspective view of the handle with a lining piece.

[0038] Figure 16 Figure 6 is an upper perspective view of the handle showing the handle body.

[0039] Figure 17 Figure 7 is an upper perspective view of the handle showing the handle body.

[0040] Figure 18 Figure 8 is an upper perspective view of the lining piece.

[0041] Figure 19 Figure 9 is a lower perspective view of the handle showing the handle body.

[0042] Figure 20 Figure 10 is a perspective view of the handle with the handle body removed to expose the internal structure.

[0043] BRIEF DESCRIPTION OF THE DRAWINGS, 1 - housing, 2 - air outlet, 3 - waterproof shell, 4 - water outlet, 5 - first channel, 6 - second channel, 7 - inner ring, 8 - outer ring, 9 - connecting rib, 10 - communication hole, 11 - first air outlet waterproof part, 12 - second air outlet waterproof part, 13 - third air outlet waterproof part, 14 - wire inlet, 15 - baffle, 16 - filter, 17 - dust cup, 18 - air inlet, 19 - valve piece, 20 - rear cover, 21 - cup cover, 22 - fan mounting cavity, 23 - air outlet end, 24 - rubber plug, 25 - air inlet mesh cover, 26 - support, 27 - tail end plate, 28 - communication channel, 29 - baffle plate, 30 - air flow, 31 - water flow, 32 - handle, 33 - mounting shaft, 34 - shaft hole, 35 - matching part, 36 - waterproof ring, 37 - lining piece, 38 - elastic ejection piece, 39 - button, 40 - mounting port, 41 - inlet, 42 - air inlet air flow, 43 - partition, 44 - first wire hole, 45 - water guide structure, 46 - drain hole, 47 - lining piece, 48 - second wire hole, 49 - mounting cavity, 50 - switch assembly, 51 - base, 52 - rubber plug hole, 53 - rubber plug, 54 - sealing ring, 55 - longitudinal part, 56 - button retainer, 57 - skirt, 58 - connecting plate, 59 - electrode. Detailed Implementation

[0044] The following description is intended to disclose the present invention and enable those skilled in the art to implement it. The embodiments described below are merely examples, and other obvious variations will arise for those skilled in the art. The basic principles of the invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the invention.

[0045] The present invention will now be described in further detail:

[0046] like Figure 1 The diagram shows a three-dimensional representation of the main unit of a waterproof handheld vacuum cleaner. It includes a housing 1, a fan, and an air duct structure. The fan is installed in the housing 1. The air duct structure is connected to the fan inlet. The fan outlet 23 is connected to the exhaust port 2 on the housing 1. The main unit also includes a waterproof housing 3, a guide structure, and a drain port 4. The fan and the waterproof housing 3 are fitted together, and the waterproof housing 3 is fitted together with the housing 1. A first channel 5 is provided between the fan and the waterproof housing 3, and a second channel 6 is provided between the waterproof housing 3 and the housing 1. The fan outlet 23, the first channel 5, the second channel 6, and the exhaust port 2 are connected in sequence. Water entering from the exhaust port 2 is blocked in the second channel 6 and guided to the drain port 4 for discharge via the guide structure. In this example, the waterproof housing 3 has a filter 16, a separator, and a dust cup 17 at its front. The dust cup 17 has a lid 21 for emptying trash at its front end. The separator is connected to the dust cup 17 in an inner and outer connection. The filter 16 is located between the separator and the air inlet of the fan. The dust cup 17 has an air inlet 18. The airflow passes sequentially through the air inlet 18, the dust cup 17, the separator, and the filter 16 before flowing into the air inlet of the fan. The dust cup 17, the separator, the filter 16, the waterproof housing 3, and the housing 1 are coaxially arranged. Therefore, the waterproof handheld vacuum cleaner main unit is roughly cylindrical. The air duct structure includes the air inlet 18 and the flow path through the dust cup 17, the separator, and the filter 16. In this example, for better performance, an air inlet mesh cover 25 is provided at the air inlet. The air inlet 18 is provided with a valve 19 that can be opened in one direction. When the vacuum cleaner is not running, the valve 19 can close the air inlet 18 to prevent trash in the dust cup 17 from leaking out of the air inlet 18. The separator is conventional and is not shown in this example. However, its absence does not affect the understanding of this invention by those skilled in the art.

[0047] Figure 11For the three-dimensional schematic diagram of the handheld dust collector main machine after the handle 32 and the dust collector main machine are connected, the handheld dust collector main machine comprises: the handle 32, which is positioned substantially transversely to the longitudinal axis of the dust collector main machine, the longitudinal axis extending from the front end to the rear end of the dust collector main machine; the inlet 41, which is positioned in front of the handle; the dust collector main machine is configured to suck dirty air into the dust collector main machine through the inlet 41 and to exhaust clean air from the dust collector main machine through the air outlet 2; the dust collector main machine is openable and closable relative to the handle 32, and a waterproof ring 36 is arranged between the dust collector main machine and the handle 32, which is used to prevent water from entering the handle 32.

[0048] In this example, the handle 32 is a waterproof handle, which comprises a body, the body is provided with a partition 43, the partition 43 divides the inner cavity of the body into an upper part and a lower part, the partition 43 is provided with a first wire hole 44, the upper part is used to connect the dust collector main machine, and the electric connecting wire is electrically connected with the dust collector main machine through the first wire hole 44, the first wire hole 44 is arranged in a sealed manner, the partition 43 is provided with a water guide structure 45, the body is provided with a drain hole 46, and the water guide structure 45 is in communication with the drain hole 46. The water guide structure 45 can be various structures, and in this example, it is exemplified as a water guide surface, which guides water to the drain hole 46 located at a low place for drainage.

[0049] The waterproof ring 36 is located above the partition 43.

[0050] The drain hole 46 is located at the front of the body and at the lower side of the button guard ring 56, so that it is directly drained from the front and cannot be directed towards the user, and at the same time, the drain hole 46 is lower than the button 39, which is more conducive to waterproofing.

[0051] The lower part is provided with a sleeve 47, which is closed at the upper end and can install an electric component, the sleeve 47 is provided with a second wire hole 48, and the electric connecting wire sequentially passes through the second wire hole 48 and the first wire hole 44 to be electrically connected with the dust collector main machine from bottom to top, so that water can be further prevented from entering the sleeve 47, and the electric component installed in the sleeve 47 and / or the electric component located below the sleeve 47 can be well protected.

[0052] As shown in Figure 13 , 20 The partition 43 is provided with a mounting cavity 49 above it, the mounting cavity 49 is used to mount a switch assembly 50, and the electric connecting wire enters the mounting cavity 49 after passing through the first wire hole 44, so that the switch assembly 50 is protected, and at the same time, it is more conducive to waterproofing, the water entering will flow around the outer surface of the mounting cavity 49 to the water guide structure 45 and finally be drained through the drain hole 46. In addition, the button 39 is connected with the switch assembly 50 to control the switch assembly 50.

[0053] The installation cavity 49 is surrounded by the base 51 and the cover, the base 51 is provided with the rubber plug hole 52, the rubber plug 53 is installed in the rubber plug hole 52, the lower end of the rubber plug 53 is provided with the sealing ring 54, the sealing ring 54 is tightly fixed between the base 51 and the partition 43 by the base 51, and the sealing ring 54 is used for sealing the first threading hole 44 and the rubber plug hole 52, as shown in Figure 14 . In this way, on the one hand, the structure is compact, and on the other hand, it is beneficial to production assembly in mass production, while ensuring the assembly quality in mass production, effectively achieving the waterproof purpose, in other words, considering from the source of the structural design, there is no need to worry about whether the assembly is flawed, whether it is not assembled in place and other problems that cause the waterproof to fail.

[0054] In this example, the upper end of the bushing 47 is connected to the peripheral surface of the first threading hole 44, and the sealing of the first threading hole 44 by the sealing ring 54 can not require additional sealing of the second threading hole 48. In addition, if better waterproof protection is required, the second threading hole 48 can be sealed.

[0055] As shown in Figure 19 , the lower end of the lower part is provided with a circumferentially extending skirt 57, and the lower end of the lower part is used to connect the battery, and the battery is located below the skirt 57, and the skirt 57 can be used as a water retaining part of the battery.

[0056] The lower surface of the skirt 57 is connected to the connecting plate 58, the connecting plate 58 closes the lower end of the lower part and the lower end of the bushing 47, the connecting plate 58 is provided with the electrode 59, the connecting plate 58 is used to connect the battery, and the electrode 59 is used to electrically connect the battery. The wires pass through the handle 32, and the battery supplies power to the dust collection main machine along the handle 32 through the wires.

[0057] In this example, the airflow entering through the inlet 41 enters the dust collection main machine tangentially through the air inlet 18 to form the first cyclone separation. The air inlet portion where the inlet 41 is located is a component with the handle 32, and the handle 32 of this example is composed of a holding part and a longitudinal part 55 provided at the top end of the holding part, that is, the upper part is provided with the longitudinal part 55 for supporting the dust collection main machine, and the longitudinal part 55 is provided with the inner lining 37, and the inner lining 37 includes the air inlet portion. The longitudinal part 55 and the matching inner lining 37 are also used for upper and lower opening and closing cooperation with the dust collection main machine. The flow direction of the air inlet airflow 42 of the air inlet portion is as shown in Figure 13 .

[0058] In this example, the inner lining 37 is located above the partition 43.

[0059] In this example, the inner lining 37 serves as the cover of the installation cavity 49, so the structure is simple and compact, and is convenient for production and assembly, that is, the inner lining 37 is installed with the longitudinal part 55 to form the installation cavity 49. As shown in Figure 20As shown, the relative position relationship among the inner liner, the base and the bushing can be clearly seen.

[0060] In this example, as shown in the figure, the dust collection main machine and the handle 32 are hingedly connected at the rear end, that is, the handle 32 is provided with a mounting shaft 33 at the rear end, and correspondingly, the dust collection main machine is provided with a shaft hole 34 at the rear end which is rotationally connected with the mounting shaft 33, so that the dust collection main machine can rotate around the mounting shaft 33, that is, the opening and closing of the dust collection main machine and the handle 32 can be realized by rotating up and down. Figure 12 In this example, the handle 32 is provided with a matching part 35 which matches with the lower part of the outer surface of the waterproof dust collection main machine, although it is matched, but not completely attached without gap, that is, there will still be a gap between the matching part 35 and the waterproof dust collection main machine, therefore, the water outlet 4 can use the gap to drain water.

[0061] As shown in the figure,

[0062] , Figure 1 , 12 As shown, the waterproof ring 36 is arranged at the lower part of the dust collection main machine, and after the dust collection main machine and the handle 32 are combined up and down, the waterproof ring 36 matches with the mounting port 40 of the handle 32, therefore, arranging the waterproof ring 36 at the lower part of the dust collection main machine is conducive to reducing the height of the mounting port 40, so that the installation operation of the electrical components or the electrical components and mechanical components through the mounting port 40 can be realized, in addition, since the aforementioned design solves the installation problem of the electrical components or the electrical components and mechanical components, it is also conducive to using the overall handle 32, that is, the handle 32 is integrally formed, that is, the handle 32 has no joint seam, so as to avoid the problem of water entering from the joint seam, and at the same time, it is also more beautiful.

[0063] In this example, the mounting port 40 is installed with a mechanical component, which is an elastic ejector 38 arranged at the lower side of the dust collection main machine, which is used to push the dust collection main machine to rotate around the mounting shaft 33 to open upward, so as to facilitate opening.

[0064] With the design of the waterproof ring 36, using the water blocking effect of the waterproof ring 36, the water outlet 4 can be arranged in the matching part to realize the hidden drainage design, and the water outlet 4 drains water from the gap, so that it is difficult for water to flow into the part surrounded by the waterproof ring, that is, it is difficult for water to flow into the handle 32, of course, it is also difficult for water to flow upward into the dust collection main machine. Even if the structure design needs, such as perforating on the inner liner 37 causes a part of water to flow into the handle 32, since there is a waterproof handle design, it can be drained through the drainage hole 46, so that drainage is realized, and at the same time, the purpose of waterproof is achieved.

[0065] In addition, water can also flow into the handle 32 through the gap between the inner lining 37 and the body of the handle 32, and due to the design of the waterproof handle, it can be discharged through the drain hole 46, so that the drainage is achieved, and the waterproof purpose is also achieved.

[0066] As can be seen from the above, the waterproof handle is of great significance in the waterproofing of the handheld vacuum cleaner main machine. The waterproof handle not only undertakes the task of protecting the internal electrical components, but also timely drains the water from other parts, so that the waterproof performance of the handheld vacuum cleaner main machine reaches a high level.

[0067] The waterproof ring 36 can be continuously designed or discontinuously designed according to different high and low positions. In this example, it can be seen from Figure 1 , 4 12 that the waterproof ring 36 is continuously designed. Since the position of the mounting shaft 33 is relatively high, water is not easy to flow over, so the waterproof ring 36 is designed to be relatively low, that is, the part of the waterproof ring 36 at this position is relatively low. At the front end, since the position is relatively low and the drain hole 4 is located on the front side of the front end and is closest to the drain hole 4, the waterproof ring is required to be designed to be relatively high. Therefore, the waterproof ring 36 forms a high-low change as shown in Figure 4 . According to whether water is easy to flow over, a discontinuous design can be provided. Of course, a continuous design is preferred.

[0068] In order to have better strength and facilitate the installation of internal components, the handle 32 is provided with the inner lining 37. After the vacuum cleaner main machine and the handle 32 are combined, the waterproof ring 36 cooperates with the inner lining 37, and the mounting hole 40 is surrounded by the waterproof ring 36. In order to better achieve waterproofing, the inner lining 37 is provided with a cooperating groove at the cooperating position with the waterproof ring 36, and the lower end of the waterproof ring 36 is inserted and cooperated with the cooperating groove.

[0069] The waterproof shell 3 adopts a tubular structure with one end open or both ends open. The gap between the fan and the tubular structure serves as the first channel 5. When both ends are open, the part of the tubular structure located on the rear side of the fan air outlet end 23 is sealingly connected with the shell body 1. There are two structures for the sealing connection. One is that the part of the tubular structure located on the rear side of the fan air outlet end 23 is directly connected and sealed with the shell body 1. The other is that the part of the tubular structure located on the rear side of the fan air outlet end 23 is indirectly connected and sealed with the shell body 1 through the rear cover 20, and the rear cover 20 serves as a sealing end. In this example, since the direct connection form is exemplified, the rear cover 20 is not used as the sealing end of the indirect sealing.

[0070] In this example, as shown in Figure 5 , 8As shown, the waterproof shell 3 adopts a tubular structure with both ends open, which facilitates the disassembly and assembly of the filter 16, the second air outlet waterproof part 12 and the fan. Specifically, the filter 16 and the second air outlet waterproof part 12 are assembled from the front end opening of the waterproof shell 3, and the fan is assembled from the rear end opening of the waterproof shell 3. When the filter 16 and the second air outlet waterproof part 12 are assembled, if the filter 16 and the second air outlet waterproof part 12 are an integral structure connected together, when the second air outlet waterproof part 12 is inserted into the front end of the waterproof shell 3, the filter 16 is also inserted into the front end of the waterproof shell 3. Such a design makes disassembly and assembly more convenient, and when assembled, the filter 16 and the second air outlet waterproof part 12 do not rotate relative to each other, and the position after assembly is stable and reliable, and the connection quality is good.

[0071] In this example, when both ends are open, a gap is provided between the air inlet end and the waterproof shell 3, and the second air outlet waterproof part 12 is assembled from the front end opening of the waterproof shell 3. The second air outlet waterproof part 12 includes a support 26, which also serves as a circumferential shielding part of the air inlet end. The shielding part is used to fill the gap. That is, after the second air outlet waterproof part 12 is assembled, the airflow mainly enters the fan from the air inlet end by using the shielding effect of the support 26 of the second air outlet waterproof part 12. Therefore, the waterproof shell 3 does not need to separately provide a blocking surface around the circumferential direction of the air inlet end, greatly simplifying the structure and improving the compactness of the structure. For reference Figure 4 、 5 , 6, Figure 5 Before installation, since the air inlet mesh cover 25 is provided in this example, the air inlet mesh cover 25 has a clear gap in the circumferential direction of the air inlet end. The second air outlet waterproof part 12 is inserted and assembled through the gap. Figure 4 、 6 After installation, the support 26 of the second air outlet waterproof part 12 shields the gap in the circumferential direction of the air inlet end, and the airflow mainly flows into the fan from the air inlet end.

[0072] In this example, the part of the tubular structure located on the rear side of the fan air outlet end 23 is directly connected and sealed with the shell 1. Specifically, the shell 1 is provided with an annular barrier wall 15, which is sleeved with the part of the tubular structure located on the rear side of the fan air outlet end 23. This has the advantages of simple structure and certain waterproof performance. In this example, in order to better connect and prevent water, there is a shielding wall inside the annular barrier wall 15, so that an annular groove is formed between the barrier wall 15 and the shielding wall, and the tail end of the waterproof shell 3 is inserted into the annular groove. For reference Figure 8 、 9 , Figure 8 The tail end of the waterproof shell 3 shown in Figure 9 is inserted into the annular groove inside the barrier wall 15 shown in

[0073] Furthermore, the housing 1 is provided with a tail end plate 27 that seals its rear end. The tail end plate 27 is provided with the aforementioned baffle 15. In this way, after the waterproof housing 3 is connected to the housing 1 at the tail end plate 27, the rear end of the waterproof housing 3 is sealed, thus further simplifying the structure and improving production efficiency and quality. (See attached diagram.) Figure 4 , 8 9.10 Understand the aforementioned structure.

[0074] Because power and / or control of the fan are required, electrical wiring is necessary. In this example, such as... Figure 5 , 8 As shown, the inlet 14 of the fan is located in the waterproof housing 3, and the outer surface of the waterproof housing 3 is designed with a recess at the inlet to avoid water. In this way, when water flowing down the outer surface of the waterproof housing 3 reaches the recess, it is difficult for the water to flow into the inlet 14 in the recess under the action of gravity, which is beneficial to waterproofing.

[0075] In this example, to guide the wire into the waterproof housing 3 from the outside, the housing 1 has a wire inlet located below the wire inlet 14. For waterproofing, a waterproof plug 24 is provided. The external wire passes through the plug 24 and is then introduced into the waterproof housing 3 through the wire inlet 14, thus achieving electrical connection to the fan. The design of the wire inlet position in the housing 1 helps to shorten the wire length, and the plug 24 facilitates waterproofing. With the tail plate 27 provided, to facilitate axial insertion and assembly of the waterproof housing 3 and the housing 1, and simplify wire assembly, the wire inlet 14 is designed to be open. This opening allows the wire to enter the wire inlet 14 during the aforementioned axial insertion assembly. Please refer to the attached diagram. Figure 8 .

[0076] For better waterproofing, such as Figure 1 , 2 The first channel 5 and the second channel 6 are provided with a connecting hole 10 for communication. The connecting hole 10 and the exhaust port 2 are offset from each other along the axial direction of the housing 1. In this example, the connecting hole 10 and the exhaust port 2 are further offset in the circumferential direction, and the two are roughly distributed in a cross shape. Figure 2 The perspective is Figure 1 The two holes were rotated 90 degrees to allow for a more complete view of the connecting hole 10, thus visually demonstrating their roughly cross-shaped positional relationship.

[0077] In order to simplify the structure, improve the compactness of the structure, and facilitate production and manufacturing, in this case, the side wall of the waterproof shell 3 is provided with a through hole as the communication hole 10, instead of using the front end opening of the waterproof shell 3 as the communication hole 10, and the front end opening is provided with a support 26, and the middle part of the support 26 is the air inlet end. However, the waterproof shell 3 can also have other structures, so depending on the structure of the waterproof shell 3, one end of the waterproof shell 3 can also be provided with an opening as the communication hole 10, or both the opening and the through hole are provided, and the opening and the through hole together serve as the communication hole 10.

[0078] As shown in Figure 9 , 10 , the second channel 6 is provided with a third air outlet waterproof part 13, which separates the second channel 6 and the air outlet 2, and the airflow flowing out of the second channel 6 flows into the air outlet 2 after passing through the third air outlet waterproof part 13. In this way, when water enters from the air outlet 2, the third air outlet waterproof part 13 can also have a certain blocking effect, so that part of the water is intercepted by the third air outlet waterproof part 13 and flows along the inner surface of the shell 1 to the low-lying drain 4. Although the third air outlet waterproof part 13 has a certain blocking effect, it is an air outlet, that is, it has good air permeability, so the water is likely to further enter the second channel 6. Then, due to the presence of the waterproof shell 3, the waterproof shell 3 becomes a second layer of waterproof wall, which has good waterproof protection for the fan. The blocked water is guided to the drain 4 by the guide structure.

[0079] Further, the inner surface of the shell 1 is provided with a baffle 29 for mounting and supporting the third air outlet waterproof part 13. The baffle 29 extends in the axial direction and is connected and sealed at the tail end with the tail end plate 27. Each third air outlet waterproof part 13 is correspondingly provided with two upper and lower baffles 29, which form a slot, and the third air outlet waterproof part 13 is inserted into the slot in the axial direction.

[0080] In order to better prevent water, the fan air outlet end 23 is provided with a first air outlet waterproof part 11 arranged in a ring shape, which separates the fan air outlet end 23 and the first channel 5. The airflow blown out of the fan air outlet end 23 flows into the first channel 5 after passing through the first air outlet waterproof part 11. The first channel 5 is provided with a second air outlet waterproof part 12, which separates the first channel 5 and the second channel 6. The airflow flowing out of the first channel 5 flows into the second channel 6 after passing through the second air outlet waterproof part 12. That is, the fan air outlet end 23 is protected by the first air outlet waterproof part 11 in a ring shape, and the second air outlet waterproof part 12 blocks the water in the second channel 6 from entering the first channel 5. Therefore, the waterproof protection is layer by layer, which greatly improves the waterproof performance and meets the waterproof time requirement of the spray verification test. That is, the fan is waterproof for a relatively long period of time.

[0081] In this case, by reasonable design, when setting the guide structure, the purposes of structure simplification and efficient guide are realized. Specifically, the guide structure includes the outer surface of the waterproof shell 3 and the inner surface of the shell 1, water on the outer surface of the waterproof shell 3 is guided to the inner surface of the shell 1 through the outer surface of the waterproof shell 3, and a drain port 4 is arranged at the low-lying part of the inner surface of the shell 1. The inner surface of the shell 1 converges water and discharges it from the drain port 4.

[0082] Furthermore, the inner surface of the shell 1 is provided with a water guide surface for guiding water to the side of the drain port 4. In this case, as shown in Figure 4 、 9 , 10, in the normal use state of the dust collector, that is, assuming the state shown in Figure 9 、 10 , the water guide surface mainly refers to the lower part of the inner surface of the shell 1, and a low-lying part is arranged at the lower part of the inner surface of the shell 1, and a drain port 4 is arranged at the low-lying part. In this way, when water is sprayed on the main machine, the water will be quickly discharged from the drain port 4, which is beneficial to improve the waterproof performance.

[0083] In this case, the waterproof shell 3 includes an inner ring 7 and an outer ring 8. The inner ring 7 is used to install the fan, that is, the fan is installed in the fan mounting cavity 22, and the front end of the fan mounting cavity 22 is provided with an air inlet mesh cover 25. The first channel 5 is formed between the inner ring 7 and the outer ring 8, and the second channel 6 is formed between the outer ring 8 and the shell 1. This is convenient for the installation of the fan, and is also beneficial to better form the first channel 5 and the second channel 6, and is also beneficial to realize the design of the columnar main machine. The first channel 5 and the second channel 6 are both annular channels. It should be noted here that the fan is not drawn in Figure 4 for the sake of simplicity and clarity.

[0084] In order to better realize the connection between the inner ring 7 and the outer ring 8, and at the same time realize the better communication between the first channel 5 and the air outlet end 23 while setting the first air outlet waterproof part 11, a plurality of connecting ribs 9 are arranged between the inner ring 7 and the outer ring 8. The connecting ribs 9 are distributed circumferentially around the inner ring 7, and the connecting channels 28 are formed between adjacent connecting ribs 9. The connecting channels 28 are used for the smooth flow of the air flow from the first air outlet waterproof part 11 into the first channel 5. Please refer to 5 and 8.

[0085] The first air outlet waterproof part 11, the second air outlet waterproof part 12, and the third air outlet waterproof part 13 can be formed by air outlet cotton or other air outlet materials. They mainly play a blocking role on water, but they should also be able to pass through the air flow when the dust collector is working normally.

[0086] As shown in Figure 4As shown, the air flow 30 flows in the direction of the arrows shown schematically, and due to the annular air passage, the air flows in all directions in the three-dimensional space, and enters the second passage 6 through the communication hole 10, and then is discharged out of the shell 1 through the air outlet 2, and thus the communication passage 28 is also annularly arranged. The water flow 31 is discharged through the water outlet 4 in the direction shown schematically.

[0087] In understanding the present application, the foregoing description can be read in conjunction with other drawings of the detailed description of the application and the annexed drawings, which show the preferred aspects of the application. Figure 1 It is understood that all content not specifically mentioned herein is not repeated.

[0088] The above description is only illustrative of the embodiments of the present application, and thus equivalent changes or modifications made in accordance with the structure, features and principles described in the scope of the patent protection of the present application are included in the scope of the patent protection of the present application.

Claims

1. A waterproof handle for a waterproof handheld vacuum cleaner main unit, comprising a body, characterized in that, The main body is provided with a partition that divides the inner cavity of the main body into an upper part and a lower part. The partition is provided with a first wire hole. The upper part is used to connect to the vacuum cleaner host. The electrical connection wire is electrically connected to the vacuum cleaner host through the first wire hole. The first wire hole is sealed. The partition is provided with a water guiding structure. The main body is provided with a drain hole. The water guiding structure is connected to the drain hole. The partition has a mounting cavity above it, which is used to install the switch assembly. The electrical connection wire enters the mounting cavity after passing through the first wire hole. The lower part has a circumferentially extending skirt at its lower end. The lower end of the lower part is used to connect the battery. The battery is located on the lower side of the skirt, and the skirt can serve as a water-blocking part for the battery. The main body also includes a button guard ring, and a drain hole is located at the front of the main body and below the button guard ring.

2. The waterproof handle for a waterproof handheld vacuum cleaner main unit according to claim 1, characterized in that, The lower part is provided with a bushing that is closed at the top and can be used to install electrical components. The bushing has a second wire hole, and the electrical connection wire passes through the second wire hole and the first wire hole from bottom to top to be electrically connected to the vacuum cleaner host.

3. The waterproof handle for a waterproof handheld vacuum cleaner main unit according to claim 2, characterized in that, The second threading hole is sealed.

4. The waterproof handle for a waterproof handheld vacuum cleaner main unit according to claim 1, characterized in that, The mounting cavity is formed by a base and a cover. The base has a rubber plug hole, and the rubber plug is installed in the rubber plug hole. The lower end of the rubber plug has a sealing ring. The sealing ring is pressed and fixed between the base and the partition by the base. The sealing ring is used for sealing the first wire hole and the rubber plug hole.

5. The waterproof handle for a waterproof handheld vacuum cleaner main unit according to claim 1, characterized in that, The upper part has a vertical section for supporting the vacuum cleaner main unit, and the vertical section has an inner liner, which is located above the partition.

6. The waterproof handle for a waterproof handheld vacuum cleaner main unit according to claim 5, characterized in that, The mounting cavity is formed by a base and a cover, with the cover serving as an inner lining.

7. A waterproof handheld vacuum cleaner main unit employing the waterproof handle described in any one of claims 1 to 6, comprising a handle and a vacuum cleaner main unit, wherein the handle is connected to the vacuum cleaner main unit, characterized in that, The grip is the waterproof grip described above.

8. The waterproof handheld vacuum cleaner main unit according to claim 7, characterized in that, A waterproof handle is positioned generally transverse to the longitudinal axis of the vacuum cleaner main unit, which extends from the front end to the rear end of the vacuum cleaner main unit; Imported, positioned in front of the grip; The vacuum cleaner is configured to draw dirty air into the vacuum cleaner through an inlet and exhaust clean air from the vacuum cleaner through an exhaust vent. A waterproof ring is provided between the vacuum cleaner body and the handle, and this waterproof ring is located above the partition.

9. The waterproof handheld vacuum cleaner main unit according to claim 7, characterized in that, The waterproof ring is located at the bottom of the vacuum cleaner main unit. When the vacuum cleaner main unit and the handle are put together, the waterproof ring fits into the mounting port of the handle.

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