CN114396477A - Air duct sealing structure of sweeper - Google Patents
Air duct sealing structure of sweeper Download PDFInfo
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- CN114396477A CN114396477A CN202210122617.5A CN202210122617A CN114396477A CN 114396477 A CN114396477 A CN 114396477A CN 202210122617 A CN202210122617 A CN 202210122617A CN 114396477 A CN114396477 A CN 114396477A
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- Prior art keywords
- vacuum generator
- box
- rubber pad
- dust
- dust collection
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/104—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/4013—Contaminants collecting devices, i.e. hoppers, tanks or the like
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
Abstract
The invention discloses an air duct sealing structure of a sweeper, which comprises a base, a dust collecting box and a vacuum generator, wherein an air suction port of the vacuum generator is arranged corresponding to a box outlet of the dust collecting box; the rubber pad is provided with a vent hole which is communicated with the air suction opening and is arranged corresponding to the box outlet; when the dust collection box is assembled on the base, the rubber pad is configured to be capable of filling an assembling gap between the vacuum generator and the dust collection box; this wind channel seal structure is through the rubber pad of being equipped with in the fit-up gap between vacuum generator and dust collection box, utilizes the rubber pad to the filling effect to play the effect of fit-up gap between the box export of shutoff vacuum generator and dust collection box, and then reach the purpose that promotes the connection leakproofness between dust collection box and the vacuum generator, ensure that vacuum generator possesses sufficient vacuum suction power, with guarantee product quality.
Description
Technical Field
The invention relates to the technical field of sweeper, in particular to an air duct sealing structure of a sweeper.
Background
The sweeper can replace people to carry out conventional cleaning operation, has the characteristics of small size, flexible action and the like, and can be widely applied.
At present, a movable base of a sweeper is generally provided with a dust collecting box so as to store particles such as debris, dust and the like trapped from a dust collecting air duct. The formation of the dust collection air duct flowing through the inner cavity of the dust collection box needs to depend on a vacuum generator communicated with the dust collection box, and an air suction opening of the vacuum generator is butted with an outlet of the dust collection box, so that the dust collection box can suck and retain particles such as dust, debris and the like in an area through the dust collection box.
In order to facilitate the quick evacuation of particles such as debris, dust in the dust collecting box, the existing sweeper generally sets the assembling structure between the dust collecting box and the base into a detachable assembling structure, and the detachable connection purpose of the dust collecting box and the base is realized through a buckle structure.
Although the detachable structure between the dust box and the base can achieve the purpose of facilitating the emptying of the dust box, this also brings about limitations on the other hand: the detachable structure between the dust collecting box and the base is easy to cause the assembly clearance between the vacuum generator and the dust collecting box, thereby influencing the connection sealing property between the dust collecting box and the vacuum generator.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an air duct sealing structure of a sweeper, which aims to solve the technical problems in the background art that: the detachable structure between the dust collecting box and the base is easy to cause the assembly clearance between the vacuum generator and the dust collecting box, thereby easily influencing the connection sealing property between the dust collecting box and the vacuum generator.
The technical scheme adopted by the invention for solving the problems is as follows:
an air duct sealing structure of a sweeper comprises a base, a dust collecting box and a vacuum generator, wherein the vacuum generator is arranged on the base, an air suction port of the vacuum generator and a box outlet of the dust collecting box are arranged correspondingly, the dust collecting box is detachably arranged on the base, and the air duct sealing structure further comprises a rubber pad which has elasticity and is arranged between the dust collecting box and the vacuum generator; the rubber pad is provided with a vent hole, the vent hole is communicated with the air suction opening, and the vent hole and the box outlet are arranged correspondingly; the rubber pad is configured to be able to fill a fitting gap between the vacuum generator and the dust box when the dust box is fitted on the base.
According to the air duct sealing structure of the sweeper, the rubber gasket is arranged in the assembly gap between the vacuum generator and the dust collection box, the vent hole communicated with the box outlet and the air suction opening is formed in the rubber gasket, so that the vacuum generator can suck the inner cavity of the dust collection box, the rubber gasket is used for filling, the assembly gap between the vacuum generator and the box outlet of the dust collection box is sealed, the purpose of improving the connection sealing performance between the dust collection box and the vacuum generator is achieved, the vacuum generator is guaranteed to have enough vacuum suction force, and the product quality is guaranteed. Meanwhile, the rubber pad has elasticity, and in practical application, the thickness of the rubber pad can be set to be at least equal to or larger than the assembly gap, so that when the dust collection box is assembled on the base, the rubber pad can be respectively abutted against the dust collection box and the vacuum generator, and the sealing performance is further improved.
Further, the base is provided with a loading plate, the loading plate is positioned between the vacuum generator and the dust collection box, and the vacuum generator is arranged on the side wall of the loading plate; the rubber pad is mounted on the loading plate.
Furthermore, the vacuum generator is fixedly installed on the side wall of the loading plate through a screw, the rubber pad is arranged between the vacuum generator and the side wall of the loading plate, and the rubber end face, far away from the loading plate, of the rubber pad is abutted to the outer side wall of the vacuum generator.
Further, a loading hole is formed in the loading plate, the outer edge of the rubber pad is configured to be capable of completely covering the loading hole, and the loading hole is communicated with the air suction opening through the vent hole; the loading hole and the box outlet are arranged correspondingly.
Furthermore, a raised ring capable of penetrating through the loading hole is arranged on the rubber pad, an outward flange which is bent and extends in a direction away from an inner cavity of the raised ring is arranged at the end part of the raised ring, and the outward flange protrudes out of the side wall of the loading plate away from the vacuum generator and can completely cover the loading hole; the convex ring is arranged on the rubber pad in a manner of surrounding the vent hole; the inner cavity of the bulge ring is arranged corresponding to the box outlet; when the dust collection box is assembled on the base, the flanging abuts against the outer side wall of the dust collection box around the box outlet.
Through designing the bulge ring penetrating through the loading hole on the rubber pad and communicating the inner cavity of the bulge ring with the vent hole, the rubber pad can form a chamber for air to flow, and the chamber penetrates out of the transfer hole and extends to be butted with the box outlet, namely, the bulge ring plays a role of replacing the loading hole and directly forming a chamber for air circulation between the vacuum generator and the dust box, compared with a structural scheme of adopting a non-self structure to jointly form the chamber for air circulation (namely adopting the structural scheme of mutually butting the loading hole and the vent hole to form the chamber for air circulation, the loading hole and the vent hole are respectively formed on two different parts, and a certain assembly gap exists when the two parts are jointly assembled and butted, so that the sealing performance is relatively poor), obviously, the bulge ring arranged around the vent hole is directly designed on the rubber pad, the bulge ring is directly arranged to penetrate through the loading hole (namely, the bulge ring penetrates through the loading hole) and extends to be butted with the outlet of the box, and the rubber end surface of the rubber pad is butted with the vacuum generator.
Furthermore, be equipped with in the rubber pad with vacuum generator looks butt's lateral wall can extend into annular arch in the inlet scoop, annular arch is and centers on the air vent sets up, just annular arch's external diameter is less than or equal to the internal diameter of inlet scoop.
Furthermore, a raised ring strip is arranged on the side wall of the vacuum generator, which is abutted to the rubber pad, and the raised ring strip is arranged around the air suction opening; the rubber pad is provided with an annular groove matched with the raised ring strip; when the vacuum generator is abutted to the rubber pad, the raised ring strip is embedded into the annular groove.
Furthermore, an annular wing edge is arranged on the side wall, which is abutted to the vacuum generator, of the rubber pad, the annular wing edge surrounds the outside of the vent hole, and the free end of the annular wing edge extends in the direction far away from the vent hole.
The annular wing edge can further abut against the outer side wall of the vacuum generator like an outward flanging, so that the assembling sealing performance between the rubber pad and the outer side wall of the vacuum generator is ensured, and the purpose of further ensuring tight butt joint is achieved.
Furthermore, the air duct sealing structure further comprises a supporting screen plate, the rubber pad is provided with a hollow cavity, and the supporting screen plate is arranged in the hollow cavity.
Further, the support screen is configured to cover the loading hole.
Further, a dust collection box is arranged on the base, the dust collection box is provided with a dust outlet, a communication port is arranged on the base, and the dust outlet is communicated with the communication port; the dust collecting box is provided with a box inlet, and the communication port and the box inlet are arranged correspondingly; the peripheral side wall of the dust collection box surrounding the box inlet is provided with a rubber extension edge which is bent and extended in the direction away from the inner cavity of the box inlet; when the dust collection box is assembled on the base, the outer rubber extension edge abuts against the outer side wall of the base, which is positioned around the communication port.
Furthermore, a rubber sleeve is sleeved on the dust outlet, and the end part of the rubber sleeve, which is far away from the dust outlet, is connected with the communication port.
In summary, the air duct sealing structure of the sweeper provided by the invention has the following technical effects:
1) the rubber gasket is arranged in the assembly gap between the vacuum generator and the dust collection box, and the filling effect of the rubber gasket is utilized to play a role in plugging the assembly gap between the vacuum generator and the box outlet of the dust collection box, so that the aim of improving the connection sealing property between the dust collection box and the vacuum generator is fulfilled, the vacuum generator is ensured to have enough vacuum suction force to ensure the product quality, and meanwhile, the elasticity of the rubber gasket can play a role in buffering;
2) the convex ring on the rubber pad can achieve the purpose of optimally improving the connection sealing property between the dust collection box and the vacuum generator;
3) the raised ring is provided with the outward flange, so that the effect of further assembling and sealing between the rubber pad and the box outlet of the dust collection box can be achieved, and the purpose of ensuring tight butt joint can be further achieved;
4) the protruding ring strips are matched with the annular grooves, so that a butt joint surface between the rubber pad and the vacuum generator is changed into a more complex three-dimensional structure surface, the air inlet difficulty of an external space is further increased, and the purpose of further improving the connection tightness between the rubber pad and the vacuum generator is achieved;
5) the annular wing edge is further abutted against the outer side wall of the vacuum generator like an outward flanging, so that the assembling sealing performance between the rubber pad and the outer side wall of the vacuum generator is ensured, and the purpose of further ensuring tight butt joint is achieved.
Drawings
Fig. 1 is a schematic view of a three-dimensional assembly structure of an air duct sealing structure of the sweeper;
FIG. 2 is an exploded view of the air duct sealing structure of the sweeper;
FIG. 3 is an exploded view of FIG. 2 from another perspective;
fig. 4 is a schematic plan assembly structure view of the air duct sealing structure of the sweeper in the embodiment;
FIG. 5 is a perspective view of a rubber mat;
FIG. 6 is a schematic view of the internal structure of the rubber pad in a side view;
FIG. 7 is a schematic view of an exemplary dust collecting case with a large fitting gap with a rubber pad;
FIG. 8 is a schematic view of the assembly of the exemplary vacuum generator with a rubber pad when not fully assembled and locked to the load plate;
FIG. 9 is a schematic structural view of a vacuum generator according to the present embodiment;
FIG. 10 is a schematic view of the dust box of the present embodiment mounted on a base;
FIG. 11 is a schematic view of the dust collecting case;
FIG. 12 is an exploded view of the dust box of the present embodiment mounted on a base;
FIG. 13 is a schematic view of the structure of FIG. 12 from another perspective;
FIG. 14 is a schematic view of the structure of the supporting net plate installed in the hollow cavity of the rubber pad.
Wherein the reference numerals have the following meanings:
1. a base; 101. a loading plate; 102. a loading aperture; 103. a communication port; 2. a dust collecting box; 201. a cartridge outlet; 202. a cartridge inlet; 203. rubber extension edges; 3. a vacuum generator; 301. an air suction opening; 302. a raised ring strip; 4. a rubber pad; 401. a vent hole; 402. a rubber end face; 403. a raised ring; 404. flanging; 405. an annular projection; 406. an annular groove; 407. an annular wing edge; 408. a hollow cavity; 5. supporting the screen plate; 6. a dust collection box; 601. a dust outlet; 7. a rubber sleeve; 701. and (7) connecting rings.
Detailed Description
For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Referring to fig. 1 to 6 and fig. 11, an air duct sealing structure of a sweeper comprises a base 1, a dust collecting box 2 and a vacuum generator 3, wherein the vacuum generator 3 is mounted on the base 1, and an air suction port 301 of the vacuum generator 3 is arranged corresponding to a box outlet 201 of the dust collecting box 2, so that when cleaning operation is performed, a negative pressure is formed in an inner cavity of the dust collecting box 2 through the vacuum generator 3, and then particulate matters such as dust, debris and the like in an area to be cleaned can be sucked and intercepted through the dust collecting box communicated with the dust collecting box; the dust collecting box 2 is detachably arranged on the base 1, and concretely comprises a rubber pad 4 which has elasticity and is arranged between the dust collecting box 2 and the vacuum generator 3; the rubber pad 4 is provided with a vent hole 401, the vent hole 401 is communicated with the air suction opening 301, and the vent hole 401 and the box outlet 201 are arranged correspondingly; the rubber pad 4 is configured to be able to fill a fitting gap between the vacuum generator 3 and the dust box 2 when the dust box 2 is fitted on the base 1.
The disclosed wind channel seal structure of sweeper of this embodiment, it installs rubber pad 4 through the fit-up gap between vacuum generator 3 and dust collection box 2, set up air vent 401 of intercommunication box export 201 and inlet scoop 301 on rubber pad 4, so that vacuum generator 3 can carry out the suction operation to the inner chamber of dust collection box 2, utilize rubber pad 4 to the filling effect, in order to play the effect of fit-up gap between the box export 201 of shutoff vacuum generator 3 and dust collection box 2, and then reach the purpose that promotes the connection leakproofness between dust collection box 2 and the vacuum generator 3, ensure that vacuum generator 3 possesses sufficient vacuum suction, in order to ensure product quality. Meanwhile, the rubber pad 4 has elasticity, and in practical application, the thickness of the rubber pad 4 can be set to be at least equal to or larger than the assembly gap, so that when the dust collection box 2 is assembled on the base 1, the rubber pad 4 can respectively abut against the dust collection box 2 and the vacuum generator 3, and the sealing performance is further improved.
Preferably, referring to fig. 1 to 6, the base 1 has a loading plate 101, the loading plate 101 is located between the vacuum generator 3 and the dust box 2, and the vacuum generator 3 is mounted on a side wall of the loading plate 101; the rubber pad 4 is mounted on the loading plate 101. In practical application, during the operation process of assembling the dust collecting box 2, the user is easy to have the problem of rigid impact between the dust collecting box 2 and the vacuum generator 3 due to excessive force, which is easy to prolong the service life of the vacuum generator 3, therefore, in the embodiment, the loading plate 101 integrally connected to the base 1 is designed between the vacuum generator 3 and the dust collecting box 2, and the purpose of reducing the direct impact force of the dust collecting box 2 on the vacuum generator 3 is achieved by utilizing the blocking effect of the loading plate 101, so that the service life of the vacuum generator 3 is ensured. Meanwhile, the elastic rubber pad 4 is mounted on the loading plate 101, which further reduces the impact.
Preferably, referring to fig. 1 and fig. 2, the vacuum generator 3 is fixedly mounted on the side wall of the loading plate 101 by screws (not shown in the drawings), the rubber pad 4 is disposed between the vacuum generator 3 and the side wall of the loading plate 101, and the rubber end face 402 of the rubber pad 4 far from the loading plate 101 abuts against the outer side wall of the vacuum generator 3, that is, the vacuum generator 3 tightly presses and assembles the rubber pad 4 between the loading plate 101 and the vacuum generator 3 by means of screws, and the abutting assembly structure can achieve the purpose of improving the sealing performance.
Preferably, referring to fig. 1 to 3, a loading hole 102 is formed on the loading plate 101, the outer edge of the rubber pad 4 is configured to completely cover the loading hole 102, and the loading hole 102 is communicated with the air suction opening 301 through an air vent 401; the loading hole 102 is disposed corresponding to the cartridge outlet 201. The outer edge of the rubber pad 4 is set to completely cover the loading hole 102, which can play a role in ensuring the assembling stability of the rubber pad 4 to avoid the problem that the rubber pad 4 is separated from the loading plate 101 through the loading hole 102. In reality, the rubber pad 4 can completely cover the loading hole 102 during assembly only by setting the outer dimension of the rubber pad 4 to be larger than the outer dimension of the loading hole 102.
Preferably, referring to fig. 4 to 6, a protruding ring 403 capable of penetrating through the loading hole 102 is disposed on the rubber pad 4, an end of the protruding ring 403 has a flange 404 extending in a bending manner in a direction away from an inner cavity of the protruding ring 403, and the flange 404 protrudes from a side wall of the loading plate 101 away from the vacuum generator 3 and is capable of completely covering the loading hole 102; the convex ring 403 is arranged on the rubber pad 4 around the vent hole 401; the inner cavity of the raised ring 403 is arranged corresponding to the box outlet 201; when the dust box 2 is fitted on the base 1, the flange 404 abuts on the outer side wall of the dust box 2 around the box outlet 201. By providing the rubber pad 4 with the protruding ring 403 penetrating through the loading hole 102 and communicating the inner cavity of the protruding ring 403 with the vent hole 401, the rubber pad 4 itself can form a chamber for air to flow, and the chamber penetrates through the loading hole 102 and extends to abut against the box outlet 201, that is, the protruding ring 403 serves to replace the loading hole 102 and form a chamber for air to flow directly between the vacuum generator 3 and the dust box 2, compared to a configuration in which a chamber for air to flow is formed by a non-self structure (i.e., the loading hole 102 and the vent hole 401 abut against each other to form a chamber for air to flow, the loading hole 102 and the vent hole 401 are formed in two different parts, respectively, and when the two parts are assembled together, a certain assembly gap exists, which results in a relative poor sealing performance), obviously, the protruding ring 403 provided around the vent hole 401 is provided directly on the rubber pad 4, the protruding ring 403 is disposed to directly penetrate through the loading hole 102 (i.e. the protruding ring 403 penetrates through the loading hole 102) and extend to abut against the box outlet 201, and the rubber end face 402 of the rubber pad 4 abuts against the vacuum generator 3, so that the purpose of optimally improving the sealing performance of the connection between the dust collection box 2 and the vacuum generator 3 can be achieved.
In addition, in the butt joint structural scheme between the protruding ring 403 and the box outlet 201 of the dust box 2, the structural form that the end part is designed to be the outward flange 404 extending in the direction far away from the inner cavity of the protruding ring 403 is adopted, so that the effect of further improving the assembling sealing performance between the rubber gasket 4 and the box outlet 201 of the dust box 2 can be achieved, and the purpose of ensuring the tight butt joint can be further achieved. The working principle of the sealing device capable of further improving the sealing performance is as follows:
since the end of the protruding ring 403 is located at the side of the loading plate 101 far from the vacuum generator 3, and the flanging 404 is set to be bent and extended in the direction far from the inner cavity of the protruding ring 403, the wall surface of the flanging 404 facing the dust box 2 becomes the wall surface in transition butt joint with the inner wall surface of the protruding ring 403 (i.e. the structural form that the flanging 404 is bent and extended in the direction far from the inner cavity of the protruding ring 403 can play the role of inner wall eversion so that the inner wall of the flanging 404 can contact with the outer side wall of the dust box 2), so when the dust box 2 is assembled on the base 1, the inner wall surface of the flanging 404 will contact with the side wall of the dust box 2, and the flanging 404 is set to extend in the direction far from the inner cavity of the protruding ring 403, so that when the outer side wall of the periphery of the box outlet 201 presses the flanging 404 to abut on the side wall of the loading plate 101, the flanging 404 will further present the state of the flanging which, as shown in fig. 4, can achieve the purpose of ensuring tight butt joint, and its specific working principle is: since the size of the assembly gap caused by the detachable structure between the dust box 2 and the base 1 is not fixed in reality, the size of the assembly gap may exhibit wide fluctuation, and in some cases, for example, when the fastening structure for assembling the dust box 2 is not fastened in place, the assembly gap between the outer sidewall of the dust box 2 and the outer sidewall of the loading plate 101 may be correspondingly enlarged, as an exemplary drawing, see fig. 7, which is a possible state diagram of the outward turned edge 404 between the outer sidewall of the dust box 2 and the sidewall of the loading plate 101 when the assembly gap is large, as shown in fig. 7, because the assembly gap is large, the connection between the outward turned edge 404 and the outer sidewall of the dust box 2 may be loosened, the outward turned edge 404 exhibits an outward turned curled state, but when the vacuum generator 3 is operated, the pressure in the inner cavity of the raised ring 403 will be reduced and smaller than the pressure in the air outside the flanging 404, at this time, the pressure towards the inner cavity of the raised ring 403 will be generated by the air outside the flanging 404, and this pressure will force the flanging 404 to gather towards the inner cavity of the raised ring 403, because the flanging 404 is a structural form with an everted inner wall, the end of the flanging 404 will be abutted against the outer side wall of the dust box 2 again in the gathering process, so as to achieve the purpose of tight butt joint again, that is, as shown in the figure. Therefore, as can be seen from the above, the flange 404 provided on the projecting ring 403 can further provide the sealing performance between the rubber gasket 4 and the case outlet 201 of the dust case 2, and thus the tight contact can be ensured.
Preferably, referring to fig. 4 to 6, an annular protrusion 405 capable of extending into the air suction opening 301 is disposed on a side wall of the rubber pad 4 abutting against the vacuum generator 3, the annular protrusion 405 is disposed around the air vent 401, and an outer diameter of the annular protrusion 405 is smaller than or equal to an inner diameter of the air suction opening 301. Because the annular bulge 405 protrudes from the side wall surface which is in contact with the vacuum generator 3 in the rubber pad 4, and the annular bulge 405 corresponds to the air suction opening 301 and the outer diameter of the annular bulge is matched with the inner diameter of the air suction opening 301, in this way, when the vacuum generator 3 is in contact with the rubber pad 4, the annular bulge 405 can enter the air suction opening 301, so that the contact surface between the rubber pad 4 and the vacuum generator 3 can be changed from a single plane to a step surface in a three-dimensional form, the air inlet difficulty of an external space is increased, and the connection tightness between the rubber pad 4 and the vacuum generator 3 is further improved.
Preferably, referring to fig. 4, 5, 6 and 9, a raised annular strip 302 is arranged on a side wall of the vacuum generator 3 abutting against the rubber pad 4, and the raised annular strip 302 is arranged around the air suction opening 301; the rubber pad 4 is provided with an annular groove 406 matched with the raised ring strip 302; when the vacuum generator 3 abuts against the rubber pad 4, the raised ring strip 302 is fitted into the annular groove 406. The protruding ring strip 302 is matched with the annular groove 406, so that the abutting surface between the rubber pad 4 and the vacuum generator 3 becomes a more complex three-dimensional structure surface, the air inlet difficulty of the external space is further increased, and the purpose of further improving the connection tightness between the rubber pad 4 and the vacuum generator 3 is achieved.
Preferably, referring to fig. 4 to 6, an annular wing 407 is provided on a side wall of the rubber pad 4 abutting against the vacuum generator 3, the annular wing 407 surrounds the outside of the ventilation hole 401, and a free end of the annular wing 407 extends in a direction away from the ventilation hole 401. Specifically, the annular flange 407 can also play a role in further improving the assembling tightness between the rubber pad 4 and the vacuum generator 3, so as to achieve the purpose of ensuring tight butt joint, and the specific structural implementation principle is as follows:
similarly, since the free end of the annular wing edge 407 protrudes from the side wall surface of the rubber pad 4 abutting against the vacuum generator 3, and the free end extends in the direction away from the vent 401, when the vacuum generator 3 abuts against the rubber pad 4, the annular wing edge 407 is pressed to assume the shape of an outwardly extending flange, as shown in fig. 4, so as to ensure the sealing property of the connection; however, in some cases, for example, when the screws of the vacuum generator 3 are loose or are not completely assembled and locked on the loading plate 101, the abutting force between the rubber pad 4 and the vacuum generator 3 is small, as shown in fig. 8, the annular wing edge 407 on the rubber pad 4 is raised correspondingly to continue abutting against the outer side wall of the vacuum generator 3, when the vacuum generator 3 works, the air pressure outside the annular wing edge 407 pushes the annular wing edge 407 to converge towards the direction of the vent 401, and at this time, the annular wing edge 407 further abuts against the outer side wall of the vacuum generator like the outward flange 404, so as to ensure the assembling sealing property between the rubber pad 4 and the outer side wall of the vacuum generator 3, and further ensure the tight abutting.
Preferably, referring to fig. 2 and 14, the air duct sealing structure further includes a supporting mesh plate 5, the rubber pad 4 has a hollow cavity 408, and the supporting mesh plate 5 is disposed in the hollow cavity 408. And, the support screen 5 is configured to cover the loading hole 102. The supporting net plate 5 can play a role in supporting the structural strength of the rubber pad 4, so that the problem that the sealing performance is reduced due to excessive deformation of the rubber pad 4 is avoided.
Preferably, referring to fig. 10 to 13, a dust collection box 6 is mounted on the base 1, the dust collection box 6 has a dust outlet 601, the base 1 is provided with a communication port 103, and the dust outlet 601 is communicated with the communication port 103; the dust collecting box 2 is provided with a box inlet 202, and the communication port 103 and the box inlet 202 are correspondingly arranged;
a rubber extension edge 203 which is bent and extended towards the direction far away from the inner cavity of the box inlet 202 is arranged on the peripheral side wall of the dust collection box 2 surrounding the box inlet 202; when the dust box 2 is fitted on the base 1, the rubber extension 203 abuts on the outer side wall of the base 1 around the communication port 103. In the same way, on the one hand, the rubber extension edge 203 can play a role in reducing impact force during assembly, and on the other hand, the rubber extension edge 203 is designed on the periphery of the box inlet 202 similarly to the structure of the outward flanging 404, so that the effect of improving the assembly sealing property between the box inlet 202 of the dust collection box 2 and the communication port 103 of the base 1 can be achieved, and the purpose of ensuring tight butt joint is further achieved.
A rubber sleeve 7 is sleeved on the dust outlet 601, and the end part of the rubber sleeve 7 far away from the dust outlet 601 is connected with the communication port 103; the communicating port 103 is connected through the rubber sleeve 7, so that the structure is simple, the sealing performance is high, and the production and the assembly are easy; the end of the rubber sleeve 7 far away from the dust outlet 601 penetrates through the communication port 103 and is connected to the side wall near the communication port 103. The end of the specific rubber sleeve 7 is provided with a connecting ring 701, the connecting ring 701 extends towards the direction far away from the inner cavity of the communication port 103, the connecting ring 701 is fixedly arranged on the side wall near the communication port 103, and the connecting ring 701 and the rubber extension edge 203 are correspondingly arranged, so the design is favorable for further reducing the impact force during assembly, furthermore, the rubber sleeve 7 directly penetrates through the communication port 103 and is butted with the box inlet 202, the effect similar to the convex ring 403 is realized, namely, the integrated cavity for air circulation is favorably formed between the base 1 and the dust collection box 6, and the purpose of optimally improving the connection sealing property between the dust collection box 2 and the dust collection box 6 can be achieved.
In conclusion, the air duct sealing structure of the sweeper disclosed by the embodiment can bring the following beneficial effects:
1) the rubber gasket is arranged in the assembly gap between the vacuum generator and the dust collection box, and the filling effect of the rubber gasket is utilized to play a role in plugging the assembly gap between the vacuum generator and the box outlet of the dust collection box, so that the aim of improving the connection sealing property between the dust collection box and the vacuum generator is fulfilled, the vacuum generator is ensured to have enough vacuum suction force to ensure the product quality, and meanwhile, the elasticity of the rubber gasket can play a role in buffering;
2) the convex ring on the rubber pad can achieve the purpose of optimally improving the connection sealing property between the dust collection box and the vacuum generator;
3) the raised ring is provided with the outward flange, so that the effect of further assembling and sealing between the rubber pad and the box outlet of the dust collection box can be achieved, and the purpose of ensuring tight butt joint can be further achieved;
4) the protruding ring strips are matched with the annular grooves, so that a butt joint surface between the rubber pad and the vacuum generator is changed into a more complex three-dimensional structure surface, the air inlet difficulty of an external space is further increased, and the purpose of further improving the connection tightness between the rubber pad and the vacuum generator is achieved;
5) the annular wing edge is further abutted against the outer side wall of the vacuum generator like an outward flanging, so that the assembling sealing performance between the rubber pad and the outer side wall of the vacuum generator is ensured, and the purpose of further ensuring tight butt joint is achieved.
The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.
Claims (12)
1. The utility model provides an air duct sealing structure of sweeper, includes base, dust collection box and vacuum generator, vacuum generator installs on the base, just vacuum generator's inlet scoop with the box export of dust collection box is corresponding setting, dust collection box detachable install on the base, its characterized in that:
also comprises a rubber pad which has elasticity and is arranged between the dust collection box and the vacuum generator;
the rubber pad is provided with a vent hole, the vent hole is communicated with the air suction opening, and the vent hole and the box outlet are arranged correspondingly;
the rubber pad is configured to be able to fill a fitting gap between the vacuum generator and the dust box when the dust box is fitted on the base.
2. The air duct sealing structure of a sweeper according to claim 1, wherein the base has a loading plate located between the vacuum generator and the dust collecting box, the vacuum generator being mounted on a side wall of the loading plate;
the rubber pad is mounted on the loading plate.
3. The air duct sealing structure of the sweeper according to claim 2, wherein the vacuum generator is fixedly mounted on the side wall of the loading plate through a screw, the rubber pad is arranged between the vacuum generator and the side wall of the loading plate, and the rubber end face of the rubber pad, which is far away from the loading plate, abuts against the outer side wall of the vacuum generator.
4. The air duct sealing structure of the sweeper according to claim 2 or 3, wherein a loading hole is formed in the loading plate, the outer edge of the rubber pad is configured to completely cover the loading hole, and the loading hole is communicated with the air suction opening through the vent hole;
the loading hole and the box outlet are arranged correspondingly.
5. The air duct sealing structure of the sweeper according to claim 4, wherein the rubber pad is provided with a raised ring which can penetrate through the loading hole, the end of the raised ring is provided with a flanging which is bent and extends in a direction away from the inner cavity of the raised ring, and the flanging protrudes out of the side wall of the loading plate which is away from the vacuum generator and can completely cover the loading hole;
the convex ring is arranged on the rubber pad in a manner of surrounding the vent hole;
the inner cavity of the bulge ring is arranged corresponding to the box outlet;
when the dust collection box is assembled on the base, the flanging abuts against the outer side wall of the dust collection box around the box outlet.
6. The air duct sealing structure of the sweeper according to claim 1, 2 or 3, wherein an annular protrusion capable of extending into the air suction opening is arranged on a side wall of the rubber pad abutting against the vacuum generator, the annular protrusion is arranged around the air vent, and the outer diameter of the annular protrusion is smaller than or equal to the inner diameter of the air suction opening.
7. The air duct sealing structure of the sweeper according to claim 1, 2 or 3, wherein a raised ring strip is arranged on the side wall of the vacuum generator abutting against the rubber pad, and the raised ring strip is arranged around the air suction opening;
the rubber pad is provided with an annular groove matched with the raised ring strip;
when the vacuum generator is abutted to the rubber pad, the raised ring strip is embedded into the annular groove.
8. The air duct sealing structure of the sweeper according to claim 1, 2 or 3, wherein an annular wing edge is arranged on a side wall of the rubber pad abutting against the vacuum generator, the annular wing edge surrounds the vent hole, and a free end of the annular wing edge extends in a direction away from the vent hole.
9. The air duct sealing structure of the sweeper according to claim 4, further comprising a supporting screen, wherein the rubber pad has a hollow cavity, and the supporting screen is disposed in the hollow cavity.
10. The air duct sealing structure of a sweeper according to claim 9, wherein the support mesh panel is configured to cover the loading hole.
11. The air duct sealing structure of the sweeper according to claim 1, 2 or 3, wherein a dust collection box is arranged on the base, the dust collection box is provided with a dust outlet, a communication port is arranged on the base, and the dust outlet is communicated with the communication port; the dust collecting box is provided with a box inlet, and the communication port and the box inlet are arranged correspondingly;
the peripheral side wall of the dust collection box surrounding the box inlet is provided with a rubber extension edge which is bent and extended in the direction away from the inner cavity of the box inlet;
when the dust collection box is assembled on the base, the outer rubber extension edge abuts against the outer side wall of the base, which is positioned around the communication port.
12. The air duct sealing structure of the sweeper according to claim 11, wherein a rubber sleeve is sleeved on the dust outlet, and an end of the rubber sleeve, which is far away from the dust outlet, is connected with the communication port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210122617.5A CN114396477A (en) | 2022-02-09 | 2022-02-09 | Air duct sealing structure of sweeper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210122617.5A CN114396477A (en) | 2022-02-09 | 2022-02-09 | Air duct sealing structure of sweeper |
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| Publication Number | Publication Date |
|---|---|
| CN114396477A true CN114396477A (en) | 2022-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210122617.5A Pending CN114396477A (en) | 2022-02-09 | 2022-02-09 | Air duct sealing structure of sweeper |
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| CN (1) | CN114396477A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023221270A1 (en) * | 2022-05-17 | 2023-11-23 | 帝舍智能科技(武汉)有限公司 | Garbage box suitable for cleaning appliance, and cleaning device |
-
2022
- 2022-02-09 CN CN202210122617.5A patent/CN114396477A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023221270A1 (en) * | 2022-05-17 | 2023-11-23 | 帝舍智能科技(武汉)有限公司 | Garbage box suitable for cleaning appliance, and cleaning device |
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