CN209074446U - A kind of vacuum cleaner - Google Patents

Abstract

The utility model provides a kind of vacuum cleaner, belongs to cleaner technology field.It solve existing vacuum cleaner staving internal and external pressure difference it is excessive cause staving deformation etc. technical problems.The upper end of the staving of this vacuum cleaner is equipped with lower cover, the middle part of lower cover is equipped with ventilation hole, upper cover is sealedly connected on the upside of lower cover, the blower that the intracorporal air of bucket is pumped into ventilation cavity is equipped in the ventilation cavity of upper cover, the middle concave part of lower cover is set in groove at groove, ventilation hole, and the side wall of groove is equipped with the vent line that can be in communication with the outside, seal plug is equipped in vent line, the side of seal plug is equipped with driving seal plug for the closed reset spring of vent line.The utility model can make the pressure difference inside and outside staving maintain in the appropriate range, not only ensure that dust catcher can work normally and efficiently, but also to can be avoided staving internal and external pressure difference excessive, causes staving to deform, high stability.

Description

A kind of vacuum cleaner

Technical field

The utility model belongs to cleaner technology field, refers in particular to a kind of vacuum cleaner.

Background technique

Vacuum cleaner can greatly improve ground cleaning efficiency, and indispensable household is had become for many people and is set Standby, the main component vacuum pump of vacuum cleaner, dust bag, hose and various shape different mouth pipe have one inside dust catcher A electric exhaust fan runs at high speed after energization, makes to form moment vacuum inside dust catcher, internal air pressure is significantly less than extraneous Air pressure, under the action of this draught head, dust and dirt enter in dust catcher staving with air-flow, using dust bag Filtering, dust and dirt stay in dust bag, and the air of purification then passes through motor and escapes into interior again, play cooling motor, purification air Effect.

Above-mentioned vacuum cleaner is higher to the structural strength of staving, if the structural strength of staving is slightly weaker, very It is easy to cause staving to deform since staving internal and external pressure difference is excessive, to influence the using effect of dust catcher.

Summary of the invention

The purpose of the utility model is to provide one kind can surround the higher vacuum cleaner of suitable vacuum degree, stability.

Purpose of the utility model is realized as follows:

The upper end of a kind of vacuum cleaner, the staving including the upper end opening with air inlet, the staving is equipped with and bucket The lower cover that body is tightly connected, the middle part of the lower cover are equipped with the ventilation hole being connected to staving, and the upside of the lower cover is tightly connected There is upper cover, ventilation cavity is surrounded between the lower cover and upper cover, the upper lid goes out equipped with what the cavity that will divulge information was in communication with the outside Air port, the ventilation cavity is interior to be equipped with the blower that the intracorporal air of bucket is pumped into ventilation cavity, it is characterised in that: the lower cover Middle concave part is set in the groove at groove, the ventilation hole, and the side wall of the groove is equipped with and can be in communication with the outside Vent line, seal plug is equipped in the vent line, the side of the seal plug, which will be equipped with driving seal plug, to be led to The closed reset spring of air pipe.

In a kind of above-mentioned vacuum cleaner, outer cover is fixed on the upside of the upper cover, outer cover is equipped with and leads to The through-hole of air pipe connection.

In a kind of above-mentioned vacuum cleaner, upper cover is run through in the upper end of the vent line, the vent line Lower end is L-shaped, and one end of the lower end of the vent line is connected to groove, the other end of the lower end of the vent line It is connected to the upper end of vent line, is tightly connected between the upper and lower end of the vent line by sealing ring.

In a kind of above-mentioned vacuum cleaner, the seal plug is set in the lower end of the vent line, and It can be slided up and down along the lower end of vent line, the upper surface of the seal plug can be resisted against on sealing ring thus will Vent line closing, the lower section of the seal plug are equipped with the mounting rod for fixed reset spring, and the two of the reset spring End is connected with seal plug and mounting rod respectively.

In a kind of above-mentioned vacuum cleaner, the seal plug includes columned main body, the downside of the main body Along its circumferential direction it is in that array is equipped at least three guide grabs on face, is equipped with and main body axis in the middle part of the lateral surface of each guide grab Line convex edge disposed in parallel, the downside of the main body are equipped with the limit card slot cooperated with reset spring.

Compared with the prior art, the utility model has prominent and beneficial technical effects that:

The utility model passes through the design of seal plug, when staving internal and external pressure difference exceeds critical value, seal plug meeting Moved down under gas pressure and compression reseting spring, to make to be in communication with the outside inside staving, air can by vent line into Enter inside staving, when air enters, and staving internal and external pressure difference is caused to be restored to critical value or less, reset spring can be by seal plug Head resets, so that vent line be sealed, so that the pressure difference inside and outside staving is unlikely to too low, influences pick-up performance；Above structure Can make pressure difference inside and outside staving maintain not only to have ensure that in the appropriate range dust catcher can work normally and efficiently, but also energy It enough avoids staving internal and external pressure difference excessive, staving is caused to deform, high stability.

Detailed description of the invention

Fig. 1 is the cross-sectional view one of the utility model.

Fig. 2 is the cross-sectional view two of the utility model.

Fig. 3 is the partial enlarged view in Fig. 1.

Fig. 4 is the structural schematic diagram of the seal plug of the utility model.

In figure, 1, staving；11, air inlet；2, lower cover；21, ventilation hole；22, groove；3, upper cover；31, air outlet；4, lead to Wind cavity；5, blower；6, vent line；61, seal plug；611, main body；612, guide grab；613, convex edge；614, limiting card Slot；62, reset spring；63, sealing ring；64, mounting rod；7, outer cover；71, through-hole.

Specific embodiment

The utility model is further described with specific embodiment with reference to the accompanying drawing, referring to Fig. 1-4:

This vacuum cleaner includes the staving 1 of the upper end opening with air inlet 11, and the upper end of the staving 1 is equipped with and bucket The lower cover 2 that body 1 is tightly connected, the middle part of the lower cover 2 are equipped with the ventilation hole 21 being connected to staving 1, and the upside of the lower cover 2 is close Envelope be connected with upper cover 3, surrounded between the lower cover 2 and upper cover 3 ventilation cavity 4, the upper cover 3 be equipped with will divulge information cavity 4 and The air outlet 31 of external world's connection, the ventilation cavity 4 is interior to be equipped with the blower 5 that the air in staving 1 is pumped into ventilation cavity 4, institute The middle concave part of lower cover 2 is stated into groove 22, the ventilation hole 21 is set in the groove 22, sets on the side wall of the groove 22 There is the vent line 6 that can be in communication with the outside, the upside of the upper cover 3 is fixed with outer cover 7, and the outer cover 7 is equipped with and ventilation The through-hole 71 that pipeline 6 is connected to, the vent line 6 is interior to be equipped with seal plug 61, and the side of the seal plug 61 is equipped with driving Seal plug 61 is by the closed reset spring 62 of vent line 6.

As shown in figures 1 and 3, upper cover 3 is run through in the upper end of the vent line 6, and the lower end of the vent line 6 is in One end of L-type, the lower end of the vent line 6 is connected to groove 22, the other end of the lower end of the vent line 6 and logical The upper end of air pipe 6 is connected to, and is tightly connected between the upper and lower end of the vent line 6 by sealing ring 63；Institute Seal plug 61 is stated in the lower end of the vent line 6, and can be glided on the lower end along vent line 6 Dynamic, the upper surface of the seal plug 61 can be resisted against on sealing ring 63 to close vent line 6, the seal plug 61 lower section be equipped with for fixed reset spring 62 mounting rod 64, the both ends of the reset spring 62 respectively with seal plug 61 It is connected with mounting rod 64.

As shown in figure 4, the seal plug 61 includes columned main body 611, along it on the downside of the main body 611 It is circumferential to be equipped at least three guide grabs 612 in array, be equipped in the middle part of the lateral surface of each guide grab 612 in main body 611 Axis convex edge 613 disposed in parallel, the downside of the main body 611 are equipped with the limit card slot 614 cooperated with reset spring 62.

The utility model passes through the design of seal plug 61, when 1 internal and external pressure difference of staving exceeds critical value, seal plug 61 can move down simultaneously compression reseting spring 62 under gas pressure, to make to be in communication with the outside inside staving 1, air can pass through ventilation Pipeline 6 enters inside staving 1, when air enters, and 1 internal and external pressure difference of staving is caused to be restored to critical value or less, reset spring 62 Seal plug 61 can be resetted, so that vent line 6 be sealed, so that the pressure difference inside and outside staving 1 is unlikely to too low, influence dust suction Effect；Above structure can make the pressure difference inside and outside staving 1 maintain in the appropriate range, both to have ensure that dust catcher can be normal high The work of effect, but it is excessive to can be avoided 1 internal and external pressure difference of staving, causes staving 1 to deform, high stability.

Above-described embodiment is only the preferred embodiment of the utility model, not limits the protection model of the utility model according to this It encloses, therefore: the equivalence changes that all structures, shape, principle according to the utility model are done should all be covered by the protection of the utility model Within the scope of.

Claims (5)

1. the upper end of a kind of vacuum cleaner, the staving including the upper end opening with air inlet, the staving is equipped with and staving The lower cover of sealed connection, the middle part of the lower cover are equipped with the ventilation hole being connected to staving, are sealedly connected on the upside of the lower cover Upper cover, surrounds ventilation cavity between the lower cover and upper cover, the upper lid is equipped with the outlet air that the cavity that will divulge information is in communication with the outside Mouthful, the blower that the intracorporal air of bucket is pumped into ventilation cavity is equipped in the ventilation cavity, it is characterised in that: in the lower cover At groove, the ventilation hole is set in the groove subordinate's spill, and the side wall of the groove is equipped with and can be in communication with the outside Vent line, the vent line is interior to be equipped with seal plug, and the side of the seal plug is equipped with driving seal plug will ventilation The closed reset spring of pipeline.

2. a kind of vacuum cleaner according to claim 1, it is characterised in that: it is fixed with outer cover on the upside of the upper cover, The through-hole for being equipped with and being connected to vent line is covered outside described.

3. a kind of vacuum cleaner according to claim 1, it is characterised in that: the upper end of the vent line is through upper Lid, the lower end of the vent line is L-shaped, and one end of the lower end of the vent line is connected to groove, the snorkel The other end of the lower end on road is connected to the upper end of vent line, is passed through between the upper and lower end of the vent line Sealing ring is tightly connected.

4. a kind of vacuum cleaner according to claim 3, it is characterised in that: the seal plug is set to the snorkel It in the lower end on road, and can be slided up and down along the lower end of vent line, the upper surface of the seal plug can be supported It leans against to close vent line on sealing ring, the lower section of the seal plug is equipped with the installation for fixed reset spring Bar, the both ends of the reset spring are connected with seal plug and mounting rod respectively.

5. a kind of vacuum cleaner according to any one of claims 1-4, it is characterised in that: the seal plug includes Columned main body along its circumferential direction is in that array is equipped at least three guide grabs on the downside of the main body, each guide grab The convex edge with the setting of main body axis parallel is equipped in the middle part of lateral surface, the downside of the main body is equipped with and reset spring The limit card slot of cooperation.