CN106923741B

CN106923741B - Backpack type vacuum cleaner

Info

Publication number: CN106923741B
Application number: CN201710225523.XA
Authority: CN
Inventors: 卞庄
Original assignee: Kingri Cleaning Equipment Suzhou Co ltd
Current assignee: Kingri Cleaning Equipment Suzhou Co ltd
Priority date: 2017-04-07
Filing date: 2017-04-07
Publication date: 2023-02-03
Anticipated expiration: 2037-04-07
Also published as: CN106923741A

Abstract

The invention relates to a knapsack vacuum cleaner, comprising a cleaner host and a knapsack device, wherein a shell is provided with a back side wall and a front side wall which are opposite, and the back side wall is close to the back of a user when the shell is carried on the back of the user; the back carrying device comprises a back plate and shoulder belts, and the shoulder belts are connected to the back plate; a connecting mechanism for connecting the back plate and the back side wall is arranged between the back plate and the back side wall, and the connecting mechanism comprises at least one connecting assembly for connecting the back plate and the back side wall; the connecting assembly is a movable connecting assembly. The present case adopts swing joint mechanism through the coupling mechanism who will connect the backplate and the back curb plate of dust catcher host computer shell for the backplate can rotate certain angle for the back lateral wall, and when the user stooped down the operation like this, the backplate can also paste tightly mutually with user's back as far as, also satisfies the user and bears this dust catcher host computer and be in comfortable state all the time.

Description

Backpack type vacuum cleaner

Technical Field

The invention relates to vacuum dust collection equipment, in particular to a knapsack type vacuum dust collector which is used for a user to carry a main machine part of the dust collector on the back of a human body for dust collection.

Background

Vacuum cleaners are a common cleaning tool, and existing cleaners are classified into upright, horizontal, portable, and backpack type, in which a main body part of the cleaner can be carried on the back like a backpack to allow a user to spare his hands for work, and the vacuum cleaner is particularly suitable for cleaning in a narrow space, such as a conference hall, a cinema, an airport, and a train, where a plurality of rows of suction nozzles are provided.

The structure of a backpack type cleaner can be seen in a cleaner disclosed in JP2017018567A and JP2002320573A, which has a cleaner main body in a backpack structure and some dust-collecting accessories. When the dust collector is used, a user can carry the main body of the dust collector on the back and can work by holding the dust collecting accessory with one hand.

When the backpack type dust collector works, a user needs to bear the main body of the dust collector on the back all the time, most of the back of the user is tightly attached to the rear cover of the main body of the dust collector, and the user can feel stuffy, uncomfortable and scorching after a little long time; and the user needs to bend down sometimes when using, because the back lid of the cleaner main body is usually hard, the user can feel uncomfortable when bending down.

U.S. Pat. No. US20150020345 discloses a backpack type dust collector, a back frame and a back belt are fixed on a rear cover of a main body of the dust collector, and a user can carry the main body of the dust collector on the back through the back frame and the back belt; chinese patent publication No. CN204722966U discloses a back-type dust collector, which includes a dust collector main body and a backpack device fixedly connected to the dust collector main body; the backpack device comprises a back frame and straps; the back frame is fixedly connected with the main body of the dust collector; the shoulder strap comprises a back plate and a shoulder strap fixed on the back plate; the back plate is provided with a plurality of binding belts which pass through the connecting through holes arranged on the back frame to bind the back frame and the braces together. Although the back frame can deform to a certain extent when a user bends down, the rear cover of the main machine of the dust collector cannot deform, and the user still feels uncomfortable.

The other type of backpack type dust collector is characterized in that a main machine part of the dust collector is arranged into an upper part and a lower part, the two parts are connected through a flexible connecting pipe, on one hand, the manufacturing cost of the dust collector is high, and on the other hand, a user still feels poor comfort when bending down.

Disclosure of Invention

In order to solve the above-mentioned problems, it is an object of the present invention to provide a backpack type vacuum cleaner which is comfortable on the back during a stooping operation.

In order to achieve the purpose of the invention, the invention adopts the following technical scheme: a backpack vacuum cleaner comprising:

a vacuum cleaner main body including a housing, a vacuum motor portion and a dust collecting portion disposed within the housing, the housing having opposing back and front side walls, the back side wall being proximate to the user's back when the housing is carried on the user's back, the front side wall being distal from the user's back when the housing is carried on the user's back;

the backpack device comprises a back plate and shoulder belts used for being carried on the shoulders of a user to carry the main cleaner on the back of the user, and the shoulder belts are connected to the back plate;

the backplate with the back lateral wall between be provided with and be used for the coupling mechanism who is connected with the two, coupling mechanism include at least one coupling assembling, coupling assembling be movable coupling assembling.

Among the above-mentioned technical scheme, preferred, coupling mechanism including be used for with the lower part of backplate with the lower coupling assembling that the lower part of back lateral wall is connected, lower coupling assembling be rotation coupling assembling, rotation coupling assembling including installing revolution movable piece on the backplate with install female rotation piece on the back lateral wall, revolution movable piece and female rotation piece rotate the connection mutually.

In the above technical solution, preferably, one of the revolving member and the rotating member is provided with a ball head portion, and the other of the revolving member and the rotating member is provided with a ball socket portion matched with the ball head portion.

In the above technical solution, preferably, the connecting mechanism includes at least one upper connecting assembly for connecting the upper portion of the back plate with the upper portion of the back side wall, and the upper connecting assembly is a movable connecting assembly.

In the above technical scheme, preferably, the upper connecting assembly is an elastic connecting assembly, and the elastic connecting assembly includes an elastic deformation piece mounted on the back plate or the back side wall.

Among the above-mentioned technical scheme, preferred, elastic connection subassembly including install the first supporting seat of backplate lower part, install the second supporting seat of back lateral wall lower part, elastic deformation spare be for supporting spring between first supporting seat and the second supporting seat.

In the above technical solution, preferably, the upper connecting assembly is a sliding connecting assembly, the sliding connecting assembly includes a first sliding member having a sliding surface or a sliding groove, and a second sliding member capable of sliding along the sliding surface or the sliding groove, the first sliding member is mounted on the back plate and one of the back side walls, and the second sliding member is mounted on the other.

In the above technical solution, preferably, the first sliding member and the second sliding member are of an inner sleeve and outer sleeve structure, and the first sliding member is sleeved outside the second sliding member or inserted inside the second sliding member.

In the above technical scheme, preferably, the connection mechanism includes a pair of lower coupling assembling and a pair of lower coupling assembling, and is a pair of lower coupling assembling distribute about, one the last connecting piece distribute about, and a pair of distance between the lower coupling assembling is greater than a pair of distance between the last coupling assembling.

In the above technical solution, preferably, the vacuum motor unit is mounted at an inner lower portion of the housing, and the dust collecting unit is mounted at an inner upper portion of the housing.

Compared with the prior art, the invention has the following beneficial effects: the present case adopts swing joint mechanism through the coupling mechanism who will connect the backplate and the back curb plate of dust catcher host computer shell for the backplate can rotate certain angle for the back lateral wall, and when the user stooped down the operation like this, the backplate can also paste tightly mutually with user's back as far as, also satisfies the user and bears this dust catcher host computer and be in comfortable state all the time.

Drawings

FIG. 1 is a front perspective view of a vacuum cleaner main body according to the present invention;

FIG. 2 is a schematic sectional view of the main body of the vacuum cleaner (with the shoulder belt removed, the angle of view is a front three-dimensional angle);

FIG. 3 is a rear perspective view of the main body of the vacuum cleaner of the present invention (with the shoulder strap removed);

FIG. 4 is a schematic view of the connection between the back side wall of the main body housing of the vacuum cleaner and the back plate;

FIG. 5 is a side view of the back plate of FIG. 4 angled rearwardly;

FIG. 6 is a side view of the main body of the vacuum cleaner of the present invention (with the shoulder strap removed and the back plate in a bent back position);

FIG. 7 is a schematic view of the connection between the back side wall of the main body housing of the cleaner and the back plate according to another embodiment;

FIG. 8 is a schematic view of the connection between the back side wall of the main body case of the cleaner and the back plate in accordance with still another embodiment;

wherein: 10. a main machine of the dust collector; 20. a carrying device; 30. a battery pack; 11. a housing; 12. a vacuum motor section; 13. a dust collecting part; 111. a back side wall; 112. a front side wall; 113. a left side wall; 114. a right side wall; 115. a top wall; 116. a bottom wall; 117. an air suction port; 118. an exhaust port; 121. a suction end; 122. an exhaust end; 21. a back plate; 211. a handle; 22. shoulder straps; 23. a lower connecting assembly; 24. an upper connection assembly; 231. a revolving movable member; 232. a female rotating member; 2311. a ball socket; 2321. a ball head; 241. an outer tube; 242. an inner tube; 2411. an inner sliding surface;

23', a lower connecting assembly; 21', a back plate; 231', a revolving movable member; 111', a back side wall; 232', a female rotating member; 2311', turning holes; 2321', a rotation axis; 241', an inner tube; 242', an outer tube; 2411', an outer sliding surface;

23", a lower connection assembly; 21", a back plate; 231', a revolving mover; 111", a back side wall; 232' of the female rotating member; 2311", a ball and socket; 2321", ball head; 24", an upper connection assembly; 241', a first support base; 242 ″ of a second support seat; 243", spring.

Detailed Description

For the purpose of illustrating the technical content, the constructional features, the achieved objects and the effects of the invention in detail, reference will be made to the following detailed description of the embodiments in conjunction with the accompanying drawings.

Referring first to fig. 1, a vacuum cleaner includes a backpack-type cleaner main body 10, a backpack device 20, and a rechargeable battery pack 30. Not shown are the usual suction attachments such as hoses, nozzles, floor brushes and the like for a backpack cleaner. The backpack device 20 is mounted on the back side wall of the cleaner main body 10, and the battery pack 30 is detachably mounted on the lower bottom of the cleaner main body 10.

As shown in fig. 1 and 2, the cleaner body 10 includes a housing 11, a vacuum motor section 12 and a dust collecting section 13 provided inside the housing 11, the housing 11 having opposite back and

front side walls

111 and 112, a left side wall 113 connecting a left end portion of the back side wall 111 and a left end portion of the front side wall 112, a right side wall 114 connecting a right end portion of the back side wall 111 and a right end portion of the front side wall 112, a top wall 115, and a bottom wall 116. The back side wall 111 is adjacent the user's back when the housing 11 is carried on the user's back, and the front side wall 112 is remote from the user's back when the housing 11 is carried on the user's back. The top wall 115 of the housing 11 is provided with an air inlet 117 for connecting with a dust suction pipe accessory, the air inlet 117 can suck external air containing dust, the air inlet 117 is communicated with the dust collection part 13, the front side wall 112 of the housing 11 is provided with a plurality of air outlets 118, and the air outlets 118 can discharge clean air to the outside. The vacuum motor part 12 has a suction end 121 and a discharge end 122, the suction end 121 is communicated with the dust collecting part 13, and the discharge end 122 is communicated with the exhaust port 118.

As shown in fig. 3, the backpack device 20 includes a back plate 21, and a shoulder belt 22 (see fig. 1) for being carried on both shoulders of the user to carry the main cleaner 10 on the back of the user, wherein the shoulder belt 22 is connected to the back plate 21, and a handle 211 for the user to lift the main cleaner is provided on the top of the back plate 21. A connecting mechanism for connecting the back plate 21 and the back side wall 111 of the housing 11 is provided therebetween, and the connecting mechanism includes a pair of lower connecting assemblies 23 for connecting the lower portion of the back plate 21 and the lower portion of the back side wall 111 and a pair of upper connecting assemblies 24 for connecting the upper portion of the back plate 21 and the upper portion of the back side wall 111. A pair of lower connecting members 23 are arranged in a left-right direction, an upper connecting member 24 is also arranged in a left-right direction, the distance between the pair of lower connecting members 23 is greater than the distance between the pair of upper connecting members 24, and the back plate 21 and the housing 11 are connected together by the upper connecting members 24 and the lower connecting members 23. In other embodiments, the upper connecting members may be provided as one and the lower connecting members as a pair, so that the connecting mechanism will be a "three-point" connection, which is also more stable.

As shown in fig. 4, the lower connecting assembly 23 is a rotating connecting assembly, which includes a revolving member 231 mounted on the lower portion of the back plate 21 and a female rotating member 232 mounted on the lower portion of the back side wall 111, the revolving member 231 includes a ball socket 2311, the female rotating member 232 includes a ball 2321, and the ball 2321 is located in the ball socket 2311 and can rotate. The upper connecting member 24 is a sliding connecting member, which includes an outer tube 241 mounted on the upper portion of the back plate 21 and an inner tube 242 mounted on the upper portion of the rear sidewall 111, the inner wall surface of the outer tube 241 is an inner sliding surface 2411 extending forward and backward, and the inner tube 242 is inserted into the outer tube 241 and can slide along the inner sliding surface 2411 of the outer tube.

In the present invention, by setting the connection mechanism at the back side wall 111 of the housing 11 and the back plate 21 as a movable connection assembly, as shown in fig. 5 and 6, the lower portion of the back plate 21 and the housing 11 of the cleaner main body can rotate back and forth relatively. When a user carries the main machine of the dust collector to bend down, the comfort level of the lower back of the user is obviously improved.

In other embodiments, the connection mechanism between the back plate and the back side wall of the housing may also be other movable connection structures, such as the following structures:

as shown in fig. 7, the lower connection assembly 23' is a rotary connection assembly including a rotary member 231' mounted on a lower portion of the back plate 21' and a female rotation member 232' mounted on a lower portion of the rear side wall 111', the rotary member 231' includes a rotation hole 2311' having an axis line extending in the left-right direction, the female rotation member 232' includes a rotation shaft 2321', and the rotation shaft 2321' is located in the rotation hole 2311' and can rotate around its axis line. The upper connecting assembly 24 'is a sliding connecting assembly, which includes an inner tube 241' mounted on the upper portion of the back plate 21 'and an outer tube 242' mounted on the upper portion of the rear sidewall 111', the inner tube 241' is externally provided with an outer sliding surface 2411 'extending forward and backward, and the outer tube 242' is fitted in the inner tube 241 'and can slide forward and backward along the outer sliding surface 2411'.

As shown in fig. 8, the lower connection assembly 23 "is a rotary connection assembly, and the rotary connection assembly includes a revolving member 231" mounted on the lower portion of the back plate 21 "and a female rotating member 232" mounted on the lower portion of the back side wall 111", the revolving member 231" includes a ball socket 2311", the female rotating member 232" includes a ball 2321", and the ball 2321" is located in the ball socket 2311 "and can rotate. The upper connecting member 24 "is a resilient connecting member including a first supporting seat 241" mounted on the upper portion of the back plate 21", a second supporting seat 242" mounted on the upper portion of the rear sidewall 111", and a spring 243" supported between the first supporting seat 241 "and the second supporting seat 242". When the back plate 21 "moves relative to the back side plate 111", the spring 243 "is elastically deformed.

Set up to swing joint through the coupling mechanism between the back lateral wall with backplate and dust catcher host computer among the back of the body package in the present case for when the user bends the back and carries out the dust absorption operation, the dust catcher host computer also can rotate or slide certain distance for the backplate, makes the upper and lower portion of dust catcher host computer can both hug closely user's back all the time, thereby has improved the comfort level that the user bore this dust catcher host computer on the back.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A backpack vacuum cleaner comprising:

a vacuum cleaner main body including a housing, a vacuum motor portion and a dust collecting portion disposed within the housing, the housing having opposing back and front side walls, the back side wall being proximate to a user's back when the housing is carried on the user's back, the front side wall being distal from the user's back when the housing is carried on the user's back;

the backpack device comprises a back plate and shoulder belts used for being carried on the shoulders of a user to carry the main cleaner on the back of the user, and the shoulder belts are connected to the back plate; the method is characterized in that: a connecting mechanism for connecting the back plate and the back side wall is arranged between the back plate and the back side wall, and the connecting mechanism comprises a pair of lower connecting assemblies for connecting the lower part of the back plate and the lower part of the back side wall and at least one upper connecting assembly for connecting the upper part of the back plate and the upper part of the back side wall; each upper connecting assembly is a sliding connecting assembly, the sliding connecting assembly comprises a first sliding piece with a sliding surface or a sliding groove and a second sliding piece capable of sliding along the sliding surface or the sliding groove, the first sliding piece is arranged on one of the back plate and the back side wall, and the second sliding piece is arranged on the other part; each lower coupling assembling be rotation coupling assembling, rotation coupling assembling including installing revolution on the backplate moves the piece and installs female rotation piece on the back lateral wall.

2. The backpack vacuum cleaner of claim 1, wherein: one part of the revolution moving piece and the female rotating piece is provided with a ball head part, and the other part is provided with a ball socket part matched with the ball head part.

3. The backpack vacuum cleaner of claim 1, wherein: the connecting mechanism comprises the upper connecting component, and the upper connecting component and the pair of lower connecting components form a three-point connecting structure.

4. The backpack vacuum cleaner of claim 1, wherein: each last coupling assembling be elastic connecting assembly, elastic connecting assembly including install the backplate or the elastic deformation spare on the back lateral wall.

5. The backpack vacuum cleaner of claim 4, wherein: elastic connection subassembly including installing first supporting seat of backplate lower part, installing the second supporting seat of back lateral wall lower part, elastic deformation spare be for supporting the spring between first supporting seat and the second supporting seat.

6. The backpack vacuum cleaner of claim 1, wherein: the first sliding part and the second sliding part are of an inner sleeve structure and an outer sleeve structure, and the first sliding part is sleeved outside the second sliding part or inserted inside the second sliding part.

7. The backpack vacuum cleaner of claim 1, wherein: the connecting mechanism comprises a pair of upper connecting assemblies, a pair of lower connecting assemblies which are distributed left and right, a pair of upper connecting assemblies which are distributed left and right, and a pair of lower connecting assemblies which are spaced from each other by a distance greater than a pair of upper connecting assemblies.

8. The backpack vacuum cleaner of claim 7, wherein: the vacuum motor part is arranged at the inner lower part of the shell, and the dust collecting part is arranged at the inner upper part of the shell.