CN210830624U

CN210830624U - Water inlet non-return water tank and cleaning device

Info

Publication number: CN210830624U
Application number: CN201921686745.2U
Authority: CN
Inventors: 刘文明; 李孟钦; 王利鹏; 郑卓斌; 王立磊; 其他发明人请求不公开姓名
Original assignee: Guangzhou Keyu Robot Co Ltd
Current assignee: Guangzhou Keyu Robot Co Ltd; Guangzhou Coayu Robot Co Ltd
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2020-06-23
Anticipated expiration: 2029-10-10

Abstract

The utility model provides a water inlet non-return water tank and use cleaning device of this kind of water tank, wherein, water inlet non-return water tank includes the box, is equipped with water inlet and delivery port on the box be provided with the plug in the water inlet, be equipped with the inside through-hole of intercommunication box on the plug, the inside one end of through-hole intercommunication box forms the duckbill valve. The utility model has simple structure, the rubber plug can not only seal the water inlet, but also form a ventilation or water inlet channel by utilizing the duckbill valve positioned in the box body, when the air pressure in the water tank is less than the atmospheric pressure, the duckbill valve can be opened under the action of the atmospheric pressure, thereby achieving the effects of air inlet and water inlet; when the atmospheric pressure inside and outside the water tank is basically the same, the duckbill valve can be closed under the action of self stress, so that the sealing effect is achieved; when the duckbill valve is pressed and closed by the pressure of water, the effect of preventing water leakage can be achieved.

Description

Water inlet non-return water tank and cleaning device

Technical Field

The utility model relates to a water inlet non-return water tank and cleaning device.

Background

Current water tank leaks for preventing that liquid from the water inlet, mostly adopts the sealed mode of blockking up the water inlet to prevent to leak when the water tank is invertd, but when intaking in to the water tank, need pull down the sealing member of water inlet department, then intake through the water inlet, though this kind of mode leakproofness is good, nevertheless the operation is complicated. Some water tanks that special equipment used, for example the water tank on the machine of sweeping the floor, have water inlet, apopore and air vent, wherein, for keeping the liquid of water tank can normally circulate, the air vent keeps the state with external intercommunication for a long time, and the air vent is that water inlet and air vent are separated, has increased the risk of leaking, and the holistic leakproofness of water tank is not strong enough.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a water inlet non-return water tank and cleaning device can solve the problem among the prior art.

Specifically, in an example, the utility model particularly provides a water inlet non-return water tank, including the box, be equipped with water inlet and delivery port on the box be provided with the plug in the water inlet, be equipped with the inside through-hole of intercommunication box on the plug, the inside one end of through-hole intercommunication box forms the duckbill valve.

The rubber plug can seal the water inlet, a duckbill valve positioned in the box body can be used for forming a ventilation or water inlet channel, and when the air pressure in the water tank is smaller than the atmospheric pressure, the duckbill valve can be opened under the action of the atmospheric pressure, so that the air inlet and water inlet effects are achieved; when the atmospheric pressure inside and outside the water tank is basically the same, the duckbill valve can be closed under the action of self stress, so that the sealing effect is achieved; when the duckbill valve is pressed and closed by the pressure of water, the effect of preventing water leakage can be achieved.

Preferably, the end surface of the top of the rubber plug is higher than the end surface of the box body in the horizontal height.

Preferably, the surface of the box body is concave inwards to form a groove, the water inlet is positioned at the bottom of the groove, the area of the bottom of the groove is larger than that of the water inlet, and the rubber plug blocks the water inlet and extends towards the wall of the groove.

In the example, still provide a cleaning device, this cleaning device disposes water inlet non return water tank, water inlet non return water tank includes the box, is equipped with water inlet and delivery port on the box be provided with the plug in the water inlet, be equipped with the through-hole that communicates the box inside on the plug, the one end that the through-hole communicates the box inside forms the duckbill valve.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is an exploded view of the structure of the middle water tank and the rubber plug of the present invention;

FIG. 2 is a sectional view of an assembly structure of a water tank and a rubber plug according to an embodiment of the present invention;

FIG. 3 is a sectional view of an assembly structure of a water tank and a rubber plug according to another embodiment of the present invention;

FIG. 4 is a structural plan view of the rubber plug in FIG. 1;

FIG. 5 is a front view of the structure of the rubber plug in FIG. 4;

FIG. 6 is a right side view of the construction of the plug of FIG. 5;

FIG. 7 is a bottom view of the structure of the rubber plug in FIG. 4;

FIG. 8 is a sectional view taken along line A-A of FIG. 7;

fig. 9 is a sectional view taken along line B-B in fig. 7.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-9, the application lists a water inlet non-return water tank capable of being installed on a cleaning device, which comprises a tank body 10, wherein a water inlet 111 and a water outlet (not shown) are arranged on the tank body 10, a rubber plug 20 is arranged in the water inlet 111, a through hole 200 communicating with the inside of the tank body 10 is arranged on the rubber plug 20, and a duckbill valve 201 is formed at one end of the through hole 200 communicating with the inside of the tank body 10. The duckbill valve 201 is mainly made of elastic rubber, has good flexibility, and is called as a duckbill valve due to the fact that the duckbill valve is provided with a runner similar to a duckbill in shape; under the condition of no internal pressure, the duckbill valve 201 closes the duckbill outlet under the self elastic action; as the internal pressure increases, the duckbill outlet increases, allowing liquid or air to pass through.

Specifically, the duckbill valve 201 located in the tank body 10 forms a one-way passage which can be communicated with the outside for ventilation or water intake, and when the air pressure in the water tank is smaller than the atmospheric pressure, the duckbill valve 201 can be opened under the action of the atmospheric pressure, so that the air intake and water intake effects are realized; when the atmospheric pressure inside and outside the water tank is basically the same, the duckbill valve 201 can be closed under the action of self stress, so that the sealing effect is achieved; when the duckbill valve 201 is pressed and closed by the pressure of water, a water leakage prevention function can be achieved. Because the plug is made by the flexible glue, the user can inject water into the water tank through the through hole 200 on the plug 20, and the water injector (water pipe) can extrude the through hole 200, so that the through hole 200 is temporarily enlarged, and the water injector can stretch into the box body 10.

Of course, in order to fill the water tank with water through the through hole 200, the opening of the through hole 200 may be an elliptical shape, or a circular hole shape or a funnel shape. Because the tip (the water jet) of can filler is usually cylindric, in an example, the top view of the plug 20 that the shape of through-hole 200 is shown in fig. 4, through-hole 200 is oval-shaped, can be convenient for form the clearance between can the can filler and the through-hole 200, and this clearance can supply the air admission box 10 in to adjust atmospheric pressure, avoids the atmospheric pressure in the water injection in-process box 10 to influence the water injection. In addition, referring to fig. 7-9, when the rubber plug 20 is installed on the water tank, the opening of the duckbill valve 201 in the tank body 10 is elongated, so that when the injector extends into the duckbill valve 201, the injector can support the duckbill valve 201, so that the opening is enlarged, the internal and external air pressure balance of the tank body 10 is facilitated, and water can be easily injected.

In a preferred example, as shown in fig. 2, the top of the rubber plug 20 is partially higher than the end surface of the tank 10 at the water inlet, so that the user can conveniently remove the rubber plug 20 from the tank 10 by grasping the portion of the rubber plug 20 protruding from the tank 10. Specifically, as shown in the front view of the rubber plug 20 shown in fig. 5 and the right view of the rubber plug 20 shown in fig. 6, a protrusion 220 is formed on the top of the rubber plug 20 and can protrude out of the surface of the box 10, so that an operator can grab or buckle the protrusion 220 when disassembling and assembling the rubber plug, and lift the rubber plug 20 to one side to remove the rubber plug 20 from the water tank.

In another preferred example, as shown in fig. 3 in conjunction with fig. 1, the surface of the tank body 10 is recessed to form a groove 110, the water inlet 111 is located at the bottom of the groove 110, as can be seen from fig. 1, the area of the bottom of the groove is larger than that of the water inlet 111, and the rubber plug 20 blocks the water inlet 111 and extends towards the wall of the groove 110 with a certain distance from the wall, so that a user can lift the portion of the rubber plug 20 extending towards the wall from the gap between the rubber plug 20 and the groove, thereby realizing the removal of the rubber plug 20.

Based on the rubber plug in the above example, as shown in fig. 5-6, the rubber plug 20 is further provided with a positioning column 210, the water tank 10 is provided with a positioning hole matched with the positioning column, and the fixing strength of the combination of the rubber plug 20 and the water tank 10 can be enhanced through the positioning column 210.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.

Claims

1. The utility model provides a water inlet non-return water tank, includes the box, is equipped with water inlet and delivery port on the box, its characterized in that, be provided with the plug in the water inlet, be equipped with the through-hole that communicates the box inside on the plug, the one end that the through-hole communicates the box inside forms the duckbilled valve.

2. The water inlet non-return water tank as claimed in claim 1, wherein an end surface of a top of the rubber stopper is higher in level than an end surface of the tank body.

3. The water inlet non-return water tank as claimed in claim 1, wherein a groove is formed in the surface of the tank body, the water inlet is located on the bottom of the groove, the area of the bottom of the groove is larger than that of the water inlet, and the rubber plug blocks the water inlet and extends toward the wall of the groove.

4. A cleaning apparatus comprising the water inlet non-return tank as claimed in claim 1.