CN219931147U

CN219931147U - Air partition device, backflow preventing device and closestool

Info

Publication number: CN219931147U
Application number: CN202321197004.4U
Authority: CN
Inventors: 林孝发; 林孝山; 林山; 许荣荣
Original assignee: QUANZHOU KEMU INTELLIGENT KITCHEN AND TOILET CO Ltd
Current assignee: QUANZHOU KEMU INTELLIGENT KITCHEN AND TOILET CO Ltd
Priority date: 2023-05-17
Filing date: 2023-05-17
Publication date: 2023-10-31
Anticipated expiration: 2033-05-17

Abstract

The utility model discloses an air separation device, a backflow prevention device and a closestool, wherein the air separation device comprises a hollowed-out part and a water containing part Shui Bu, wherein the water containing part is provided with a water containing cavity and a water outlet communicated with the water containing cavity; the hollow part is provided with an air separation space communicated with the water containing cavity, the hollow part is provided with one or more air inlets and water inlets communicated with the air separation space, the water inlet is arranged at the position of the hollow part facing the water containing cavity, and the air separation device can realize backflow prevention of the water-free tank.

Description

Air partition device, backflow preventing device and closestool

Technical Field

The utility model relates to a closestool technology, in particular to an air separation device, a backflow prevention device and a closestool.

Background

Existing toilets generally have a flush tank through which a backflow prevention valve is provided to prevent backflow of flush water to the municipal water line, contaminating the water source. At present, no design for preventing backflow to municipal water pipes due to flushing without a water tank is adopted.

Disclosure of Invention

The embodiment of the utility model provides an air partition device, a backflow preventing device and a closestool, which can realize backflow prevention without a water tank.

The embodiment of the utility model provides an air isolation device, which comprises: the water containing part is provided with a water containing cavity and a water outlet communicated with the water containing cavity;

the hollow part is provided with an air partition space communicated with the water containing cavity, the hollow part is provided with one or more air inlets and water inlets communicated with the air partition space, and the water inlet is arranged at the position of the hollow part facing the water containing cavity.

In one exemplary embodiment, the water containing segment and the hollowed-out segment are integrally molded or separately assembled.

In an exemplary embodiment, the water containing portion and the hollow portion are both funnel-shaped, the flared end of the water containing portion is correspondingly communicated with the flared end of the hollow portion, and the flared end of the water containing portion and the flared end of the hollow portion are both provided with mounting seats and are mounted in a matched manner.

In an exemplary embodiment, the hollow portion is provided with a plurality of connecting ribs, the connecting ribs are arranged at intervals along the circumferential direction of the hollow portion, the hollow portions between the adjacent connecting ribs form the air inlet, the air separation space is formed by the space surrounded by the connecting ribs, and the water inlet is communicated with one end, away from the water containing cavity, of the air separation space.

In an exemplary embodiment, the hollowed-out portion and the water containing portion are spliced along the height direction of the air partition device to form a water flow passage, and the water inlet of the hollowed-out portion is located right above the water containing cavity.

In an exemplary embodiment, a distance between the water inlet of the hollowed-out portion and the water containing portion is greater than or equal to a diameter of the water outlet.

In one exemplary embodiment, the relationship among the total area of the air inlet, the distance between the water inlet of the hollowed-out portion and the water containing portion, and the diameter of the water outlet satisfies:

S≥b×2πG/3

s represents the total area of the air inlet; b represents the distance between the water inlet of the hollowed-out part and the water containing part; pi represents the circumference ratio; g represents the diameter of the water outlet.

The embodiment of the utility model also provides a backflow preventing device, which comprises: the air isolation device according to any of the above embodiments, comprising a water inlet pipe, a water outlet pipe, and an air isolation device connecting the water inlet pipe and the water outlet pipe; the water inlet pipe is connected with the water inlet of the hollowed-out part of the air isolation device, and the water outlet pipe is connected with the water outlet of the water containing cavity of the air isolation device.

In an exemplary embodiment, the water outlet end of the water outlet pipe is provided with a connecting joint, and the backflow preventing device further comprises a fixing nut and a sealing rubber gasket connected with the connecting joint.

The embodiment of the utility model also provides a closestool, which comprises the following steps: a toilet body, and a backflow preventing device as described in any of the above embodiments;

the closestool body is provided with a flushing port, and the water outlet end of the water outlet pipe of the backflow preventing device is communicated with the flushing port.

In one exemplary embodiment, the toilet bowl body is provided with a drain outlet, and the toilet bowl further comprises a drain box which is matched with the drain outlet, a drain pipe which is at least partially arranged in the drain box, is communicated with the drain outlet and can rotate relative to the drain box, and a shifter which is used for connecting a sewer and the drain box;

the flushing port is arranged as a brush ring water outlet, and the closestool further comprises a control valve connected with the water inlet end of the water inlet pipe of the backflow preventing device.

The air partition device provided by the embodiment of the utility model has the advantages that the hollow part and the water containing part are arranged to enable water to flow through, the air partition space of the hollow part can effectively partition water flow and prevent water flow from flowing back, and meanwhile, the air partition device is compact in structure and convenient to install.

The closestool provided by the embodiment of the utility model can realize backflow prevention without a water tank.

Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate and do not limit the utility model.

FIG. 1 is a perspective assembly view of a toilet according to an embodiment of the present utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a perspective exploded view of FIG. 1;

FIG. 4 is a perspective assembly view of a backflow device of a toilet according to an embodiment of the present utility model;

FIG. 5 is a perspective exploded view of FIG. 4;

fig. 6 is a schematic sectional view showing an operation state of the backflow preventing device of the toilet bowl according to the embodiment of the present utility model.

Reference numerals:

100-toilet bowl; 1-a toilet body; 2-a backflow prevention device; 10-cylinder body; 11-an accommodating cavity; 101-flushing the mouth; 3-a sewage draining box; a 4-shifter; 21-connecting the lower part of the water inlet pipe; 22-a water outlet pipe; 220-connection joints; 24-fixing the nut; 25-sealing rubber gaskets; 5-a control valve;

23-air blocking means; 231-hollowed-out part; 232-a water containing part; 2320-water holding chamber; 2321-a water outlet; 2310-air-blocking space; 2311-an air inlet; 2312-a water inlet; 2313. 2322-mount; 2314-connecting ribs.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in detail hereinafter with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be arbitrarily combined with each other.

As shown in fig. 1-6, an embodiment of the present utility model provides a toilet 100, comprising: a toilet body 1, and a backflow preventing device 2 connected with the toilet body 1 and used for flushing the toilet body 1.

As shown in fig. 1 to 2, the toilet body 1 has a cylinder 10 and a housing chamber 11 provided at the rear end of the cylinder 10. The cylinder 10 is provided with a flushing port 101 and a drain port (not shown). The backflow preventing device 2 is connected with a flushing port 101, and the flushing port 101 in the embodiment is arranged at the upper part of the cylinder body 10, so that the pan surface of the cylinder body 10 can be flushed by a brush ring. As shown in fig. 3, the toilet 100 further includes a sewage box 3 installed to be matched with the sewage outlet, and a shifter 4 for connecting a sewer (not shown) and the sewage box 3. The backflow preventing device 2, the sewage discharging box 3 and the shifter 4 are all accommodated in the accommodating cavity 11. The specific structure and function of the sewage draining box 3 and the shifter 4 can be referred to in the patent CN202210971864.2, and will not be described herein.

As shown in fig. 4 to 6, the backflow preventing device 2 includes a water inlet pipe 21, a water outlet pipe 22, and an air blocking device 23 connecting the water inlet pipe 21 and the water outlet pipe 22.

The air partition device 23 comprises a hollow part 231 and a water containing part 232, wherein the hollow part 231 and the water containing part 232 are arranged up and down along the axial direction of the air partition device 23, and the hollow part 231 and the water containing part 232 are spliced up and down along the height direction of the air partition device 23 to form a water flow passage through which water flows together. The water containing portion 232 has a water containing chamber 2320 for storing water, and a water outlet 2321 communicating with the water containing chamber 2320. The hollow portion 231 is provided with an air blocking space 2310 communicated with the water chamber 2320. The hollow portion 231 is provided with one or more air inlets 2311 and water inlets 2312 communicated with the air partition space 2310, and the water inlets 2312 are arranged at the position of the hollow portion 231 facing the water containing cavity 2320.

The air blocking device 23 of the embodiment of the utility model can supply water to flow through the hollow part 231 and the water containing part 232, and the air blocking space 2310 of the hollow part 231 can effectively block water flow and prevent water flow from flowing back.

As shown in fig. 4-5, the hollowed-out portion 231 and the water containing portion 232 are funnel-shaped and are connected in a split type combined installation manner. The flaring end of fretwork portion 231 is equipped with mount pad 2313, and the flaring end of flourishing water portion 232 is equipped with mount pad 2322, and the flaring end of flourishing water portion 232 corresponds the intercommunication with the flaring end of fretwork portion 231, and mount pad 2313 of fretwork portion 231 and mount pad 2322 of flourishing water portion 232 are installed through bolt (not shown) mutually supporting.

The hollowed-out part 231 and the water containing part 232 of the embodiment of the utility model are connected in a split type combined installation mode, so that the production is convenient, and meanwhile, in the installation process, the water inlet 2312 of the hollowed-out part 231 can be ensured to be accurately aligned with the water containing cavity 2320.

As shown in fig. 6, in the embodiment of the present utility model, the air isolation device 23 is an ellipsoid, the hollowed-out portion 231 and the water containing portion 232 are spliced along the axial direction M of the air isolation device 23, and the water inlet 2312 of the hollowed-out portion 231 is located right above the water containing cavity 2320 and is coaxially arranged with the water containing cavity 2320, so that water flow can be ensured to flow into the water containing cavity 2320 and water stored in the water containing cavity 2320 is prevented from overflowing.

In an exemplary embodiment, the hollowed-out portion 231 and the water containing portion 232 may be integrally formed by means of 3D printing.

In an exemplary embodiment, the hollowed out portion 231 and the water containing portion 232 may have a radial cross section in any other shape such as a circle, a square, an ellipse, a triangle, etc.

As shown in fig. 4-5, the hollow portion 231 is provided with a plurality of connection ribs 2314, and the space surrounded by the plurality of connection ribs 2314 forms an air blocking space 2310, and the water inlet 2312 is communicated with one end of the air blocking space 2310 away from the water containing cavity 2320. The plurality of connecting ribs 2314 are connected with the water inlet 2312 and the mounting seat 2313, the plurality of connecting ribs 2314 are arranged at intervals along the circumferential direction of the hollowed-out portion 321, and the hollowed-out portions between the adjacent connecting ribs 2314 form the air inlet 2311. According to the hollow part 231 provided by the embodiment of the utility model, the plurality of connecting ribs 2314 are arranged, and the air inlets 2311 are formed between the adjacent connecting ribs 2314, so that on one hand, air inlet is uniform, and on the other hand, the connection strength of the hollow part 231 can be improved.

The water inlet pipe 21 of the backflow preventing device 2 of the embodiment of the utility model is connected with the water inlet 2312 of the air blocking device 23, and the water outlet pipe 22 is connected with the water outlet 2321 of the air blocking device 23. As shown in fig. 5, the water outlet end of the water outlet pipe 22 is provided with a connection joint 220, and the backflow preventing device 2 further comprises a fixing nut 24 and a sealing rubber pad 25 connected with the connection joint 220, so as to connect the backflow preventing device 2 with the toilet body 1 or other devices to be installed.

The distance b between the water inlet 2312 of the hollowed-out part 231 and the water containing part 232 is larger than or equal to the diameter G of the water outlet and larger than 20mm. The minimum spacing between adjacent connection beads 2314 of the embodiment of the present utility model is greater than 4mm. The relation among the total air intake area S of the hollowed-out portion 231, the distance b between the water inlet of the hollowed-out portion 231 and the water containing portion 232, and the diameter G of the water outlet of the hollowed-out portion 231 in the embodiment of the utility model is as follows:

S≥b×2πG/3

s represents the total intake area of the intake hole 2311; b represents the distance between the water inlet of the hollow part 231 and the water containing part 232; pi represents the circumference ratio; g represents the water area.

The design of the backflow prevention device 2 of the embodiment of the utility model can meet the European EN11717 standard. The air partition device 23 of the embodiment of the utility model has higher partition effect, and has compact whole and small volume.

The backflow preventing device 2 can be directly connected with a municipal water source, tap water washes the closestool body 1 through the backflow preventing device 2, and the backflow preventing device 2 can prevent flushing water from flowing back to pollute the municipal water source. The toilet 100 of the embodiment of the present utility model does not require a water tank to be installed.

As shown in fig. 1 and 3, the toilet 100 further includes a control valve 5 connected to the water inlet end of the water inlet pipe 21 of the backflow preventing device 2. The control valve 5 is used for controlling the on-off of the backflow preventing device 2 and is accommodated in the accommodating cavity 11.

As shown in fig. 6, when the toilet 100 of the embodiment of the utility model works, when the control valve 5 starts water inflow, the toilet 100 starts a flushing and cleaning function, water flows through the backflow preventing device 2 and enters the toilet body 1 to flush the pan surface of the cylinder 10, the hollowed-out part 231 of the backflow preventing device 2 is positioned at the upper part, the water containing part 232 is positioned at the lower part, the water flows from the water outlet of the hollowed-out part 231 to the water containing cavity 2320, the water containing cavity 2320 receives water in a form similar to that of a basin, and the hollowed-out part 231 effectively cuts off the water flow in backflow. The cleaning process of the toilet 100 only needs the water inlet of the brush ring, then the flushing system rotates the sewage box 3 to turn over and blow down, no water is required to be sprayed, and the flushing function can be realized without the siphon effect of the toilet 100, so the requirements on the water pressure and the water flow speed are low, and the requirement on the water inlet of the brush ring can be met as long as the water inlet of the brush ring can be cleaned to the pan surface of the whole cylinder body 10.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms "upper", "lower", "one side", "the other side", "one end", "the other end", "the side", "the opposite", "four corners", "the periphery", "the" mouth "character structure", etc., are directions or positional relationships based on the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the structures referred to have a specific direction, are configured and operated in a specific direction, and thus are not to be construed as limiting the present utility model.

In the description of embodiments of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "directly connected," "indirectly connected," "fixedly connected," "mounted," "assembled" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the terms "mounted," "connected," and "fixedly connected" may be directly connected or indirectly connected through intervening media, and may also be in communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Although the embodiments of the present utility model are described above, the embodiments are only used for facilitating understanding of the present utility model, and are not intended to limit the present utility model. Any person skilled in the art can make any modification and variation in form and detail without departing from the spirit and scope of the present disclosure, but the scope of the present disclosure is defined by the appended claims.

Claims

1. An air shutoff device, comprising: the water containing part is provided with a water containing cavity and a water outlet communicated with the water containing cavity;

2. The air shutoff device of claim 1, wherein: the water containing part and the hollowed-out part are integrally formed or split-type assembled.

3. The air shutoff device of claim 1, wherein: the water containing part and the hollow part are all funnel-shaped, the flaring end of the water containing part is correspondingly communicated with the flaring end of the hollow part, and the flaring end of the water containing part and the flaring end of the hollow part are both provided with mounting seats and are mutually matched for mounting.

4. An air shutoff device according to any one of claims 1-3, wherein: the hollow-out portion is equipped with a plurality of connecting ribs, a plurality of connecting ribs are followed the circumference interval arrangement of hollow-out portion, and is adjacent fretwork between the connecting rib forms the air inlet, a plurality of the space formation that the connecting rib encircled the air cuts off the space, the water inlet with the air cuts off the space and keeps away from the one end intercommunication of flourishing water cavity.

5. An air shutoff device according to any one of claims 1-3, wherein: the hollow-out part and the water containing part are spliced along the height direction of the air partition device to form a water flow passage, and the water inlet of the hollow-out part is positioned right above the water containing cavity.

6. An air shutoff device according to any one of claims 1-3, wherein: the distance between the water inlet of the hollowed-out part and the water containing part is greater than or equal to the diameter of the water outlet.

7. An air shutoff device according to any one of claims 1-3, wherein: the relation among the total area of the air inlet, the distance between the water inlet of the hollowed-out part and the water containing part and the diameter of the water outlet satisfies the following conditions:

S≥b×2πG/3

8. A backflow prevention device, comprising: a water inlet pipe, a water outlet pipe, and an air blocking device according to any one of claims 1-7 connecting said water inlet pipe and said water outlet pipe; the water inlet pipe is connected with the water inlet of the hollowed-out part of the air isolation device, and the water outlet pipe is connected with the water outlet of the water containing cavity of the air isolation device.

9. The backflow preventing device of claim 8, wherein: the water outlet end of the water outlet pipe is provided with a connecting joint, and the backflow preventing device further comprises a fixing nut and a sealing rubber cushion which are connected with the connecting joint.

10. A toilet, comprising: a toilet body, a backflow preventing device according to any one of claims 8 to 9;

11. The toilet according to claim 10, wherein: the closestool body is provided with a drain outlet, and the closestool also comprises a drain box which is matched with the drain outlet, a drain pipe which is at least partially arranged in the drain box, is communicated with the drain outlet and can rotate relative to the drain box, and a shifter which is used for connecting a sewer and the drain box;