WO2021022700A1

WO2021022700A1 - Fastening structure for drum-shaped housing and support legs, and vacuum cleaner

Info

Publication number: WO2021022700A1
Application number: PCT/CN2019/116462
Authority: WO
Inventors: 卞小贤; 朱艳玲; 封杨
Original assignee: 天佑电器（苏州）有限公司
Priority date: 2019-08-07
Filing date: 2019-11-08
Publication date: 2021-02-11
Also published as: CN210902806U

Abstract

A fastening structure for a drum-shaped housing (1) and support legs (2), and a vacuum cleaner. A first fastening part (51) is mounted on the drum-shaped housing (1), and at least one second fastening part (22) and a third fastening part (24) are mounted on the support legs (2). Each of the support legs (2) comprises a housing (21), the housing (21) having a lateral face (211) oriented toward the drum-shaped housing (1). The at least one second fastening part (22) and the third fastening part (24) are mounted separately on the lateral face (211), and the at least one second fastening part (22) extends from the lateral face (211), allowing a fastening space (221) to be formed between the at least one second fastening part (22) and the lateral face (211). When the support leg (2) fastens to the drum-shaped housing (1), a lower part of the drum-shaped housing (1) enters into the fastening space (221), and the first fastening part (51) and the third fastening part (24) interlock. Among the first fastening part (51) and the third fastening part (24), one of the parts is a fastening projection and the other part is a fastening aperture.

Description

Fixing structure of bucket body and foot support and vacuum cleaner

Technical field

The utility model relates to the technical field of vacuum cleaners, in particular to a fixing structure of a barrel body and a foot support and a vacuum cleaner.

Background technique

A general mobile bucket vacuum cleaner includes a head assembly and a dust bucket assembly. In order to facilitate the movement, the bucket body of the dust bucket assembly is usually provided with a foot support assembly with rollers. In the prior art, the foot support is usually fixed to the lower end of the bucket body of the dust bucket assembly by screws. The disadvantage of this fixing method is that it needs to add a process step of putting the screw pack on the production site, which is very easy to leak. The release situation leads to low user satisfaction and high complaint rate.

In view of this, it is necessary to propose a new fixing method, which can realize the mutual fixing of the foot support assembly and the dust bucket assembly without using screws.

Utility model content

The purpose of the utility model is to provide a fixed structure of the barrel and foot support and a vacuum cleaner to solve the technical problems of low user satisfaction and high complaint rate caused by the leakage of screw packs in the prior art.

The utility model provides a fixing structure of a barrel body and an foot support. The barrel body is provided with a first engaging portion; the foot support is provided with at least one second engaging portion and a third engaging portion; wherein, the foot support It includes a main body, the main body has a side surface facing the barrel body; the at least one second engaging portion and the third engaging portion are respectively disposed on the side surface, and the at least one second engaging portion protrudes from the side surface, so that An engaging space is formed between the at least one second engaging portion and the side surface; when the foot support is fixed to the barrel, the lower end of the barrel enters the engaging space, and the first engaging portion and the first engaging portion The three engaging portions are engaged with each other; one of the first engaging portion and the third engaging portion is an engaging protrusion, and the other of the first engaging portion and the third engaging portion is engaging hole.

As an optional technical solution, it further includes an auxiliary piece, which is sleeved on the outer side of the lower end of the barrel and is located between the barrel and the side surface of the foot support; wherein, the first engaging portion is arranged at The accessory is on.

As an optional technical solution, the first engaging portion is an engaging hole, and the engaging hole is a through hole; the third engaging portion is an engaging protrusion; when the foot support is fixed to the barrel, the The engaging protrusion is accommodated in the engaging hole.

As an optional technical solution, the engaging protrusion has a guiding inclined surface, and the guiding inclined surface is located on a side of the engaging protrusion away from the bottom surface of the foot support, wherein the guiding inclined surface extends diagonally upward.

As an optional technical solution, when the foot support is fixed to the barrel body, the lower end of the auxiliary member enters the engaging space.

As an optional technical solution, the at least one second engaging portion is a claw.

As an optional technical solution, multiple reinforcing ribs are arranged on the outer side of the jaw.

As an optional technical solution, the upper edge of the at least one second engaging portion is flush with the lower edge of the third engaging portion.

As an optional technical solution, the number of the at least one second engaging portion is two, and the two second engaging portions are symmetrically arranged on both sides of the third engaging portion.

The utility model also provides a vacuum cleaner, which is characterized by including the above-mentioned fixing structure of the barrel body and the foot support.

Compared with the prior art, the fixing structure of the barrel body and the foot support provided by the present invention includes a first, at least one second and third engaging portion, and the first engaging portion is arranged on one side of the barrel body, At least one second engaging portion and third engaging portion are respectively arranged on the side of the foot support facing the side of the barrel body, at least one second engaging portion is coupled to the lower end of the barrel body, and the first engaging portion is engaged with the second engaging portion The part is snapped together, which can realize the screwless connection between the barrel body and the foot support, eliminating the process steps of putting the screw bag, and the connection between the barrel body and the foot support is simple and reliable, which improves user satisfaction and reduces the complaint rate .

The following describes the utility model in detail with reference to the accompanying drawings and specific embodiments, but it is not intended to limit the utility model.

Description of the drawings

Figure 1 is a schematic diagram of the dust bucket assembly and foot support assembly of the present invention.

Figure 2 is a bottom view of the dust bucket assembly and foot support assembly of the present invention.

FIG. 3 is an enlarged schematic diagram of area A in FIG. 2.

Figure 4 is a schematic diagram of the foot support assembly of the present invention.

Figure 5 is a schematic cross-sectional view of the dust bucket assembly and the foot support assembly of the present invention after being fixed.

detailed description

In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below in conjunction with embodiments and drawings. It should be understood that the specific embodiments described here are only used to explain the present utility model, and are not used to limit the present utility model.

Figure 1 is a schematic diagram of the dust bucket assembly and foot support assembly of the present invention; Figure 2 is a bottom schematic view of the dust bucket assembly and foot support assembly of the present invention; Figure 3 is an enlarged schematic view of area A in Figure 2; Figure 4 is A schematic diagram of the foot support assembly of the present invention; Figure 5 is a schematic cross-sectional view of the dust bucket assembly and the foot support assembly of the present invention after being fixed.

As shown in FIGS. 1 to 3, the dust bucket assembly includes a bucket body 1, and the foot support assembly includes a foot support 2 and a bottom pulley 3 disposed on the foot support 2. The foot support 2 is fixed to the lower end of the bucket body 1 by a fixing structure.

As shown in Figures 1 to 5, the fixing structure includes a first engaging portion 51, at least one second engaging portion 22, and a third engaging portion 24. The first engaging portion 51 is located on the barrel 1, and at least one The two engaging portions 22 and the third engaging portion 24 are respectively disposed on the foot support 2; wherein, the foot support 2 includes a body 21, the body 21 has a side surface 211, the side surface 211 faces the barrel 1, at least one second engaging portion 22 And the third engaging portion 24 are respectively disposed on the side surface 211, and at least one second engaging portion 22 protrudes from the side surface 211, so that an engaging space 221 is formed between the at least one second engaging portion 22 and the side surface 211; When the support 2 is fixed to the barrel 1, the lower end of the barrel 1 enters the engaging space 221, the first engaging portion 51 and the third engaging portion 24 engage with each other, and the first engaging portion 51 and the second engaging portion One of 24 is an engaging protrusion, and one of the first engaging portion 51 and the second engaging portion 24 is an engaging hole.

When the bucket vacuum cleaner is placed upright, the upper end of the bucket body 1 is far away from the ground, the lower end of the bucket body 1 is close to the ground, and the lower end of the bucket body 1 is bent to form a flange 11, and the flange 11 is accommodated in the engaging space 221.

It should be noted that the above-mentioned fixing structure is suitable for fixing one foot support 2 to the lower end of the barrel 1. When the vacuum cleaner has multiple foot supports 2, it may include a plurality of the aforementioned fixing structures to be fixed to the lower end of the barrel 1 respectively.

The outer side of the lower end of the barrel 1 is sleeved with an auxiliary member 5, and the first engaging portion 51 is provided on the auxiliary member 5. The first engaging portion 51 is, for example, an engaging hole, which is a through hole, but not limit. In other embodiments of the present invention, the engaging hole forms a recess on the auxiliary member, and the recess is recessed from the outer surface of the auxiliary member toward the barrel. The foot support 2 is fixed on the barrel 1, the auxiliary member 5 is located between the barrel 1 and the side surface 211 of the foot support 2, and the lower end of the auxiliary member 5 is accommodated in the engaging space 221.

In addition, in other embodiments of the present invention, the outer side of the lower end of the barrel body may not be provided with auxiliary parts, wherein the first engaging portion may be directly formed on the barrel body, when the first engaging portion is a through-type engaging In order to ensure the tightness of the barrel body, a sealing ring can be arranged on the barrel body at the position corresponding to the engaging hole to prevent the inside of the barrel body from communicating with the external environment through the above engaging hole.

In addition, in other embodiments of the present invention, the auxiliary member 5 can be integrated with the lower end of the barrel 1, that is, in the process of forming the barrel 1, the outer side of the lower end of the barrel 1 can be directly formed by a similar process. 5.

As shown in FIGS. 2 to 5, at least one second engaging portion 22 is, for example, a claw, and the third engaging portion 24 is, for example, an engaging protrusion, wherein the claw, the engaging protrusion, and the body 21 are integrally formed ; Claws and engagement protrusions respectively protrude on the side surface 211. In this embodiment, the number of at least one second engaging portion 22 is two, and the two second engaging portions 22 are symmetrically arranged on both sides of the third engaging portion 24, or in other words, the third engaging portion 24 As the center, the two second engaging parts 22 are arranged symmetrically. The two second engaging portions 22 arranged symmetrically can increase the stability of the foot support 2 and the barrel 1 after being fixed, and make the combination more stable.

In the above embodiment, the first engaging portion 51 is an engaging hole and the third engaging portion 24 is an engaging protrusion as an example for description, but it is not limited to this. In other embodiments of the present invention, the first engaging portion is, for example, an engaging protrusion, the engaging protrusion protrudes from the outside of the barrel, or the engaging protrusion protrudes from the outside of the auxiliary member; The part is, for example, an engaging hole, and the engaging hole is, for example, a through hole or a recess, which penetrates the side surface of the body of the foot support when the through hole is a recess, and is recessed from the side toward the inside of the body when the recess is a recess.

Continuing to refer to Figures 4 and 5, the process of assembling the foot support 2 to the lower end of the barrel 1 includes setting the cap (or at least one third engaging portion 22) on the flange 11 at the lower end of the barrel 1, Rotate the body 21 of the foot support 2 counterclockwise so that the engaging protrusion (or the third engaging portion 24) on the side surface 211 of the body 21 enters the engaging hole (or the first engaging portion 51) of the auxiliary member 5, Furthermore, the foot support 2 is stably fixed to the lower end of the barrel 1.

Wherein, in order to facilitate the engaging protrusion to enter the engaging hole, the engaging protrusion has a guiding inclined surface 241, the guiding inclined surface 241 extends obliquely upward, and the guiding inclined surface 241 is located on the engaging protrusion away from the bottom surface 212 of the foot support 2. One side. In other words, the third engaging portion 24 has a guiding inclined surface 241, the guiding inclined surface 241 extends diagonally upward, and the guiding inclined surface 241 is located on the side of the third engaging portion 24 away from the bottom surface 212 of the footrest 2.

Further, the upper edge of the claw (or the upper edge 223 of the at least one second engaging portion 22) is substantially flush with the lower edge of the engaging protrusion (or the lower edge 242 of the third engaging portion 24). Preferably, The distance between the upper edge of the pawl (or the upper edge 223 of the at least one second engaging portion 22) and the lower edge of the engaging protrusion (or the lower edge 242 of the third engaging portion 24) is ±5 mm. Among them, the "upper edge" is close to the upper end of the barrel 1, and the "lower edge" is close to the lower end of the barrel 1.

The present invention further defines the gap between the upper edge of the claw (or the upper edge 223 of the at least one second engaging portion 22) and the lower edge of the engaging protrusion (or the lower edge 242 of the third engaging portion 24). The positional relationship, that is, the mutual restriction between the engaging protrusion (or the third engaging portion 24) and the engaging hole (or the first engaging portion 51) to ensure that the claw (at least one second engaging portion 22) ) Will not fall off from the lower end of the barrel 1, improving the stability of the fixing structure.

5, the upper end of the auxiliary member 5 is provided with a bending edge 52, which is bent from the top to the bottom of the auxiliary member 5; the side surface 211 of the body 21 of the foot support 2 is provided with a step 213, the step 213 is close to The top of the body 21; wherein, when the first engaging structure 51 is provided in the engaging hole on the auxiliary member 5, the engaging protrusion on the side surface 211 of the body 21 of the foot support 2 enters the engaging hole, and the engaging protrusion The lower edge of the raised edge is substantially pressed against the bottom of the engaging hole, so that the auxiliary member 5 receives a downward force. At this time, the bent edge 52 of the auxiliary member 5 will press down against the body 21 of the foot support 2. The step portion 213 on the side surface 211 further prevents the engagement protrusion from coming out of the engagement hole under the action of external force, which is beneficial to improve the stability of the fixed connection between the foot support 2 and the barrel 1. Among them, the "top" is close to the upper end of the barrel 1, and the "bottom" is close to the lower end of the barrel 1.

In addition, the pulley 3 is provided at the bottom of the foot support 2 through the connecting member 4, and the pulley 3 can slide on the ground to make the barrel 1 move.

The present invention also provides a vacuum cleaner, which includes the fixing structure of the barrel 1 and the foot support 2 as described above.

In summary, the fixing structure of the barrel and the foot support provided by the present utility model includes a first, at least one second, and third engaging portion. The first engaging portion is provided on one side of the barrel, and at least one second The engaging portion and the third engaging portion are respectively arranged on the side of the foot support facing the side surface of the barrel, at least one second engaging portion is coupled to the lower end of the barrel, and the first engaging portion is engaged with the second engaging portion, The barrel body and the foot support can be connected without screws, the process steps of putting a screw bag are eliminated, and the connection between the barrel body and the foot support is simple and reliable, which improves user satisfaction and reduces the complaint rate.

Of course, the present utility model can also have many other embodiments. Without departing from the spirit and essence of the present utility model, those skilled in the art can make various corresponding changes and modifications according to the present utility model, but these Corresponding changes and deformations should belong to the protection scope of the appended claims of the present utility model.

Claims

A fixing structure for a barrel body and an foot support, characterized in that:

The barrel (1) is provided with a first engaging portion (51); the foot support (2) is provided with at least one second engaging portion (22) and a third engaging portion (24);

Wherein, the foot support (2) includes a body (21), the body (21) has a side surface (211), the side surface (211) facing the barrel (1); the at least one second engaging portion (22) and the The third engaging portion (24) is respectively arranged on the side surface (211), and the at least one second engaging portion (22) protrudes from the side surface (211), so that the at least one second engaging portion (22) and A clamping space (221) is formed between the side surfaces (211);

When the foot support (2) is fixed to the barrel (1), the lower end of the barrel (1) enters the engaging space (221), and the first engaging portion (51) is engaged with the third engaging Parts (24) are mutually engaged; one of the first engaging part (51) and the third engaging part (24) is an engaging protrusion, the first engaging part (51) and the third engaging part The other of the joints (24) is a clamping hole.
The fixing structure of the barrel and the foot support according to claim 1, further comprising an auxiliary member (5), the auxiliary member (5) is sleeved on the outer side of the lower end of the barrel (1) and is located in the Between the barrel body (1) and the side surface (211) of the foot support (2); wherein, the first engaging portion (51) is arranged on the auxiliary member (5).
The fixing structure of the barrel and the foot support according to claim 2, wherein the first engaging portion (51) is an engaging hole, and the engaging hole is a through hole; the third engaging portion (24) ) Is an engaging protrusion; when the foot support (2) is fixed to the barrel (1), the engaging protrusion is received in the engaging hole.
The fixing structure of the barrel body and the foot support according to claim 3, wherein the engaging projection has a guiding inclined surface, and the guiding inclined surface is located on the bottom surface of the engaging projection away from the foot support (2). 212), wherein the guiding inclined surface extends diagonally upward.
The fixing structure of the barrel body and the foot support according to claim 2, wherein when the foot support (2) is fixed to the barrel body (1), the lower end of the auxiliary member (5) enters the engaging space (221) In.
The fixing structure of the barrel and the foot support according to claim 1, wherein the at least one second engaging portion (22) is a claw.
The fixing structure of the barrel and the foot support according to claim 6, wherein a plurality of reinforcing ribs (222) are provided on the outer side of the claw.
The fixing structure of the barrel and the foot support according to claim 1, wherein the upper edge (223) of the at least one second engaging portion (22) and the lower edge of the third engaging portion (24) are The side edges (242) are flush.
The fixing structure of the barrel and the foot support according to claim 1, wherein the number of the at least one second engaging portion (22) is two, and the two second engaging portions (22) are symmetrically arranged On both sides of the third engaging portion (51).
A vacuum cleaner, characterized by comprising the fixing structure of the barrel body and the foot support according to any one of claims 1-9.