An upright vacuum cleaner

Abstract

The application relates to a horizontal dust collector, an air outlet assembly of which is detachably fixed on the rear end surface of an outer shell. The air outlet assembly comprises an air outlet piece, a limiting seat and a sliding locking piece. The sliding locking piece is composed of a sliding part and a limiting arm. The air outlet piece is composed of an air outlet functional area and a border frame. An air outlet opening which is matched with the shape of the border frame is formed on the rear end surface of the outer shell. A sliding groove is extended downward from the top wall of the border frame. The rear side wall of the air outlet functional area is continuously extended backward and is bent downward to form a hooking arm. The limiting seat is fixed on the outer shell and a limiting notch which is opposite to the sliding groove is extended upward from the bottom wall of the limiting seat. When the sliding locking piece is located at the upper limit position, the limiting arm is sunk into the limiting notch and cooperates with the hooking arm to realize the position locking of the air outlet piece relative to the outer shell. When the sliding locking piece is located at the lower limit position, the limiting arm is separated from the limiting notch, and the locking relationship between the air outlet piece and the outer shell is invalid.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household vacuum cleaner manufacturing, in particular to a horizontal vacuum cleaner. BACKGROUND

[0002] With the rapid growth of residents' income level and the continuous improvement of living conditions in China, the demand for vacuum cleaners in households is also increasing. The working principle of the vacuum cleaner is to use the motor to drive the blade to rotate at high speed to generate air negative pressure in the sealed shell, to suck up dust, and to collect it in the dust cup assembly.

[0003] In the currently used horizontal vacuum cleaner, the air outlet plate is mostly installed on the rear side of the vacuum cleaner cover body and is fastened and locked by means of screws. However, when the air outlet plate needs to be replaced, the operation is extremely inconvenient and time-consuming and laborious. Moreover, after a period of use, the air outlet plate will inevitably deform, thereby affecting the positioning accuracy of the screw holes thereon and causing assembly difficulties. In view of this, as shown in Figure 1 Chinese invention patent CN211511612U discloses a vacuum cleaner air outlet plate mounting structure, which comprises a vacuum cleaner cover body, an air outlet plate and a sliding member. An installation slot is formed on the vacuum cleaner cover body to accommodate the air outlet plate. A first clamping protrusion extends downward from the bottom wall of the air outlet plate, and correspondingly, a first clamping groove adapted to the first clamping protrusion is formed on the lower plane of the installation slot. A sliding groove is provided on the upper part of the air outlet plate. The sliding member is accommodated in the sliding groove and can slide freely in the upward and downward directions. A second clamping protrusion extends upward from the top wall of the sliding member, and correspondingly, a second clamping groove adapted to the second clamping protrusion is formed on the upper plane of the installation slot. However, it is known that the material of the air outlet plate is mostly plastic and the thickness is controlled to be less than 3mm, and the structural strength is weak. In this way, in the actual working process of the horizontal vacuum cleaner, the air outlet plate is easily subjected to high-speed wind impact force and high-frequency vibration phenomenon occurs, and even the side wall of the installation slot is hit, thereby causing a large working noise and seriously reducing the user's experience satisfaction with the product. Therefore, it is urgent for technical personnel to solve the above problems SUMMARY

[0004] Therefore, in view of the above existing problems and defects, the present application designers collect relevant data, evaluate and consider various aspects, and through years of research and development experience of technical personnel in this industry, continuous experiments and modifications are made, and finally the horizontal vacuum cleaner is obtained.

[0005] In order to solve the above technical problems, the application relates to a horizontal dust collector, which comprises a shell, a negative pressure generating unit, a dust cup assembly and an air outlet assembly. An air inlet is formed on the front end surface of the shell. The negative pressure generating unit and the dust cup assembly are both arranged in the cavity of the shell. The air outlet assembly is detachably fixed on the rear end surface of the shell. The negative pressure generating unit comprises a motor and an impeller assembly. When the motor is started, the impeller assembly continuously rotates at a high speed, and the air to be filtered is supplied to the dust cup assembly through the air inlet by the negative pressure effect, and the filtered air is finally discharged to the external environment through the air outlet assembly. The air outlet assembly comprises an air outlet piece, a limiting seat and a sliding locking piece. The sliding locking piece is composed of a sliding part and a limiting arm which is continuously extended upward from the top wall of the sliding part. The air outlet piece is an integral injection molding piece, which is composed of an air outlet functional area and a frame which is directly formed on the periphery of the air outlet functional area. A plurality of air outlet holes are uniformly distributed on the air outlet functional area. An air outlet is formed on the rear end surface of the shell, which is matched with the shape of the frame. The top wall of the frame is extended downward to form a sliding groove which is matched with the shape of the sliding part and allows the sliding part to only perform axial sliding movement. The rear side wall of the air outlet functional area is continuously extended backward and bent downward by 90 degrees to form a hooking arm. The number of hooking arms is multiple, which are uniformly distributed along the width direction of the air outlet functional area and are set at a distance d beyond the frame. The limiting seat is fixed on the shell and extends upward from the bottom wall to form a limiting slot which is opposite to the sliding groove. When the sliding locking piece is located at the upper limit position, the limiting arm is sunken into the limiting slot, and the hooking arm cooperates to realize the position locking of the air outlet piece relative to the shell. When the sliding locking piece is located at the lower limit position, the limiting arm and the limiting slot are separated, and the locking relationship between the air outlet piece and the shell is invalid.

[0006] As a further improvement of the technical scheme of the application, a left limiting protrusion is continuously extended leftward from the left side wall of the sliding part, and a left limiting notch is formed on the left side wall of the sliding groove to accommodate the left limiting protrusion. A right limiting protrusion is continuously extended rightward from the right side wall of the sliding part, and a right limiting notch is formed on the right side wall of the sliding groove to accommodate the right limiting protrusion.

[0007] As a further improvement of the technical scheme of the application, a left L-shaped cutting slot is formed on the left side wall of the sliding part to form a left elastic arm. The left limiting protrusion is located on the left elastic arm. A right L-shaped cutting slot is formed on the right side wall of the sliding part to form a right elastic arm. The right limiting protrusion is located on the right elastic arm.

[0008] As a further improvement of the technical scheme of the application, a pressing groove is formed by extending forward from the rear end surface of the sliding part.

[0009] As a further improvement of the technical scheme of the present application, the horizontal vacuum cleaner further comprises a roller assembly. The roller assembly is composed of at least three rollers mounted on the side wall of the outer shell.

[0010] As a further improvement of the technical scheme of the present application, the limiting seat and the outer shell are preferably integrally injection molded.

[0011] Compared with the horizontal vacuum cleaner of the conventional design structure, in the technical scheme disclosed by the present application, the air outlet piece is an integrally injection molded piece and is composed of an air outlet functional area and a border frame. A plurality of air outlet holes for discharging filtered air are uniformly distributed on the air outlet functional area. The border frame is circumferentially formed around the periphery of the air outlet functional area, thereby ensuring that the air outlet piece has good structural strength (especially in terms of rigidity enhancement). In this way, in the actual working process of the horizontal vacuum cleaner, the air outlet piece is difficult to be subjected to high-frequency vibration even if it is subjected to the action of high-speed wind impact force, thereby effectively reducing the working noise. In addition, the relative height position of the sliding locking piece is adjusted to realize the conversion of the locking state and the unlocking state of the air outlet piece relative to the outer shell. The entire operation process is rapid and quick, and the design structure has very low requirements for assembly precision. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0013] Figure 1 is a partial structure schematic view of the horizontal vacuum cleaner in the prior art.

[0014] Figure 2 is a three-dimensional schematic view of the horizontal vacuum cleaner in the present application.

[0015] Figure 3 is an exploded schematic view of the horizontal vacuum cleaner in the present application.

[0016] Figure 4 is a top view of Figure 2 .

[0017] Figure 5 is an A-A sectional view (rotated by 90°) of Figure 4 .

[0018] Figure 6 is a side view of Figure 2 .

[0019] Figure 7 is a side view of Figure 6BB cross-sectional view.

[0020] Figure 8 yes Figure 7 A magnified view of part of I.

[0021] Figure 9 This is a schematic diagram illustrating the movement of the sliding locking component in the horizontal vacuum cleaner of the present invention from the upper limit position to the lower limit position.

[0022] Figure 10 This is a three-dimensional schematic diagram of the outer shell of the horizontal vacuum cleaner of the present invention from a first perspective.

[0023] Figure 11 This is a three-dimensional schematic diagram of the outer shell of the horizontal vacuum cleaner of the present invention from a second perspective.

[0024] Figure 12 This is a three-dimensional schematic diagram of the air outlet component in the horizontal vacuum cleaner of the present invention from a first perspective.

[0025] Figure 13 This is a three-dimensional schematic diagram of the air outlet component in the horizontal vacuum cleaner of the present invention from a second perspective.

[0026] Figure 14 This is a three-dimensional schematic diagram of the air outlet component in the horizontal vacuum cleaner of the present invention from a third perspective.

[0027] Figure 15 yes Figure 12 Side view.

[0028] Figure 16 This is a three-dimensional schematic diagram of the limiting seat in the horizontal vacuum cleaner of the present invention from the first perspective.

[0029] Figure 17 This is a three-dimensional schematic diagram of the limiting seat in the horizontal vacuum cleaner of the present invention from a second perspective.

[0030] Figure 18 This is a three-dimensional schematic diagram of the sliding locking component in the horizontal vacuum cleaner of the present invention from a first perspective.

[0031] Figure 19 This is a two-dimensional schematic diagram of the sliding locking component in the horizontal vacuum cleaner of the present invention from a second perspective.

[0032] 1-outer shell; 11-air inlet; 12-air outlet; 2-negative pressure generating unit; 3-dust cup assembly; 4-air outlet assembly; 41-air outlet piece; 411-air outlet functional area; 4111-air outlet hole; 4112-hooking arm; 412-edge frame; 4121-left limiting notch; 4122-right limiting notch; 42-limiting seat; 421-limiting slot; 43-sliding locking piece; 431-sliding part; 4311-left limiting protrusion; 4312-right limiting protrusion; 4313-left elastic arm; 4314-right elastic arm; 4315-pressing groove; 432-limiting arm; 5-roller assembly; 51-roller. DETAILED DESCRIPTION

[0033] In the description of the present application, it should be understood that the terms "front", "back", "upper", "lower", "left", "right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0034] The content of the present application will be further described in detail below in conjunction with specific embodiments, and it can be understood by Figure 2 , 4 , 5 that the horizontal cleaner mainly comprises an outer shell 1, a negative pressure generating unit 2, a dust cup assembly 3, and an air outlet assembly 4. Among them, an air inlet 11 is formed on the front end face of the outer shell 1 (as shown in Figure 11 ). The negative pressure generating unit 2 and the dust cup assembly 3 are both built-in in the cavity of the outer shell 1. The air outlet assembly 4 is detachably fixed on the rear end face of the outer shell 1. The negative pressure generating unit 2 comprises a motor and an impeller assembly. When the motor is started, the impeller assembly continuously rotates at high speed, and the air to be filtered is supplied to the dust cup assembly 3 through the air inlet 11 by means of the negative pressure effect, and the filtered air is finally discharged to the external environment through the air outlet assembly 4.

[0035] Figure 3 The explosion diagram of the horizontal cleaner in the present application is shown, and it can be known that the air outlet assembly 4 mainly comprises an air outlet piece 41, a limiting seat 42, and a sliding locking piece 43. When the air outlet piece 41 is positioned relative to the outer shell 1, the limiting seat 42 and the sliding locking piece 43 cooperate to realize the locking or subsequent unlocking operation of the position of the air outlet piece 41.

[0036] In the actual design of the horizontal cleaner, the following scheme is preferably adopted: as Figure 18 , 19As shown in FIG. 1, the slide locking piece 43 is composed of two parts, i.e. a slide part 431 and a limiting arm 432. The limiting arm 432 is directly continued from the top wall of the slide part 431 upward. As shown in FIG. 1, the slide part 431 is provided with a slide hole 4311. Figures 12-15 As shown in FIG. 1, the air outlet piece 41 is an integrally injection molded piece, which is composed of an air outlet functional area 411 and a surrounding frame 412 directly molded on the periphery of the air outlet functional area 411. A plurality of air outlet holes 4111 are uniformly distributed on the air outlet functional area 411. An air outlet opening 12 (as shown in FIG. 1) is formed on the rear end surface of the outer shell 1, which is adapted to the shape of the surrounding frame 412. Figure 10 As shown in FIG. 1, the top wall of the surrounding frame 412 extends downward to form a slide groove 4121, which is adapted to the shape of the slide part 431 and allows the slide part 431 to only perform axial sliding movement. The rear side wall of the air outlet functional area 411 continues to extend rearward and is bent downward by 90° to form a hooking arm 4112. The number of the hooking arms 4112 is multiple, which are uniformly distributed along the width direction of the air outlet functional area 411 and are arranged at a distance d beyond the surrounding frame 412. Figure 2 As shown in FIG. 1, the outer shell 1 is an integrally injection molded piece, and the limiting seat 42 is directly molded thereon. Figure 16 、 17 As shown in FIG. 1, the bottom wall of the limiting seat 42 extends upward to form a limiting groove 421, which is opposite to the slide groove 4121. Figure 9 As shown in FIG. 1, when the slide locking piece 43 is located at the upper limit position, the limiting arm 432 is sunken in the limiting groove 421, and cooperates with the hooking arm 4112 to lock the position of the air outlet piece 41 relative to the outer shell 1. When the slide locking piece 43 is located at the lower limit position, the limiting arm 432 is separated from the limiting groove 421, and the locking relationship between the air outlet piece 41 and the outer shell 1 is invalid. As described above, the relative height position of the slide locking piece 43 is adjusted to switch the locking state and the unlocking state of the air outlet piece 41 relative to the outer shell 1. The whole operation process is rapid and quick, and the design structure has a very low requirement on assembly precision.

[0037] In addition, it is also necessary to emphasize that the air outlet piece 41 is preferably injection molded by nylon material with high structural strength and good wear resistance. In addition, as shown in FIG. 1, the air outlet functional area 411 is provided with a plurality of air outlet holes 4111, which are uniformly distributed on the air outlet functional area 411. Figure 12 、 13 As shown in FIG. 1, the surrounding frame 412 is circumferentially molded around the periphery of the air outlet functional area 411, and the thickness t thereof is controlled to be t≥5 mm. Thus, the air outlet piece 41 has good structural strength (especially in the aspect of rigidity enhancement), so that the air outlet piece 41 is difficult to have high-frequency vibration phenomenon under the action of high-speed wind impact force in the actual working process of the horizontal type vacuum cleaner, thereby effectively reducing the working noise.

[0038] Further, as Figure 12 , 13 , 18, 19, as shown, as a further optimization of the above-mentioned structure of the horizontal dust collector, an L-shaped cutting slot is formed on the left side wall of the sliding part 431, so as to form a left elastic arm 4313. The left side wall of the left elastic arm 4313 continues to extend leftward to form a left limiting protrusion 4311. Correspondingly, a left limiting notch 41211 is formed on the left side wall of the sliding groove 4121 for the left limiting protrusion 4311. An L-shaped cutting slot is formed on the right side wall of the sliding part 431, so as to form a right elastic arm 4314. The right side wall of the right elastic arm 4314 continues to extend rightward to form a right limiting protrusion 4312. Correspondingly, a right limiting notch 41212 is formed on the right side wall of the sliding groove 4121 for the right limiting protrusion 4312.

[0039] As shown in Figure 6 , 7 , 8, 9, when the installation operation of the air outlet part 41 is performed, first, the hooking arms 4112 are inserted into the air outlet 12 at the same time, so as to limit the rotation and swing freedom of the lower end of the air outlet part 41 by the lower edge of the air outlet 12. Then, the sliding locking part 43 is assembled into the sliding groove 4121, and the sliding locking part 43 is pushed upward. In this process, the left limiting protrusion 4311 is always elastically pressed against the left side wall of the sliding groove 4121 under the action of the elastic force of the left elastic arm 4313, and the right limiting protrusion 4312 is always elastically pressed against the right side wall of the sliding groove 4121 under the action of the elastic force of the right elastic arm 4314. The sliding locking part 43 performs directional sliding movement along the sliding groove 4121 until the left limiting protrusion 4311 and the right limiting protrusion 4312 are respectively and correspondingly sunken into the left limiting notch 41211 and the right limiting notch 41212. At the same time, the limiting arm 432 is inserted into the limiting slot 421. At this time, the rotation and swing freedom of the upper end of the air outlet part 41 is selected. When the air outlet part 41 needs to be removed, the sliding locking part 43 is pushed downward in the reverse direction until the limiting arm 432 is out of the limiting slot 421. Then, the air outlet part 41 is turned over by a small angle, so that the hooking arms 4112 can be easily pulled out of the air outlet 12, so that the locking relationship between the air outlet part and the outer shell body is invalid. From the above description, it can be seen that whether the locking operation or the unlocking operation of the air outlet part 41 needs to consume less time, and the whole operation process can be completed by one person.

[0040] In addition, it also needs to be explained that by adopting the above technical scheme, the air outlet part 41 after assembly has a very small assembly gap relative to the outer shell body 1.

[0041] Finally, it needs to be explained that, in order to improve the accuracy and stability of the operator's force exertion on the sliding lock 43, avoid the subsequent phenomenon of jamming due to improper force exertion and the phenomenon of ineffective force exertion due to finger slipping, as a further optimization of the structure of the above-mentioned sliding lock 43, as shown in Figure 18 、 19 The rear end surface of the sliding part 431 can also extend forward to form a lifting recess 4315.

[0042] The above description of disclosed embodiments enables those skilled in the art to carry out or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will accord with the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A horizontal vacuum cleaner, comprising a housing, a negative pressure generating unit, a dust cup assembly, and an air outlet assembly; an air inlet is provided on the front end face of the housing; the negative pressure generating unit and the dust cup assembly are both built into the cavity of the housing; the air outlet assembly is detachably fixed to the rear end face of the housing; the negative pressure generating unit includes a motor and an impeller assembly; when the motor is started, the impeller assembly continuously rotates at high speed, supplying the air to be filtered to the dust cup assembly through the air inlet by means of the negative pressure effect, and the filtered air is finally discharged to the external environment through the air outlet assembly, characterized in that, The air outlet assembly includes an air outlet component, a limiting seat, and a sliding locking component; the sliding locking component consists of a sliding part and a limiting arm extending upward from the top wall of the sliding part; the air outlet component is an integral injection molded part, consisting of an air outlet functional area and a frame directly formed around the air outlet functional area; multiple air outlet holes are evenly distributed on the air outlet functional area; an air outlet adapted to the shape of the frame is provided on the rear end face of the outer shell; a sliding groove adapted to the shape of the sliding part and allowing the sliding part to slide only axially extends downward from the top wall of the frame; the air outlet component continues from the rear side wall of the air outlet functional area... The component extends backward and bends downward at a 90° angle to form a hook arm; the number of hook arms is set to multiple and evenly distributed along the width direction of the air outlet functional area; the limiting seat is fixed to the outer shell and extends upward from its bottom wall to form a limiting slot that is directly opposite the sliding groove; when the sliding locking member is in the upper limit position, the limiting arm is recessed in the limiting slot, working with the hook arm to lock the position of the air outlet component relative to the outer shell; when the sliding locking member is in the lower limit position, the limiting arm and the limiting slot disengage, and the locking relationship between the air outlet component and the outer shell fails; A left-position limiting protrusion extends to the left from the left side wall of the sliding part, and correspondingly, a left-position limiting notch is provided on the left side wall of the sliding groove for the left-position limiting protrusion to be inserted; a right-position limiting protrusion extends to the right from the right side wall of the sliding part, and correspondingly, a right-position limiting notch is provided on the right side wall of the sliding groove for the right-position limiting protrusion to be inserted. A left-positioned L-shaped slit is formed on the left side wall of the sliding part to create a left-positioned elastic arm; the left-positioned limiting protrusion is located on the left-positioned elastic arm; a right-positioned L-shaped slit is formed on the right side wall of the sliding part to create a right-positioned elastic arm; the right-positioned limiting protrusion is located on the right-positioned elastic arm. The sliding part extends forward from its rear end to form a pressing groove.

2. The horizontal vacuum cleaner according to claim 1, characterized in that, It also includes a roller assembly; the roller assembly consists of at least three rollers mounted on the side wall of the housing.

3. The horizontal vacuum cleaner according to claim 1, characterized in that, The limiting seat and the outer shell are integrally injection molded.

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