CN220725287U - Siphon drain valve and closestool - Google Patents

Abstract

The utility model provides a siphon drain valve and a closestool, wherein the siphon drain valve is arranged in a water tank and comprises: the siphon channel is provided with a water inlet channel, a water outlet channel and a water outlet positioned between the water inlet channel and the water outlet channel, the position of the water outlet is lower than the water storage water level of the water tank, the inlet of the water inlet channel is communicated with the inner cavity of the water tank and lower than the water storage water level of the water tank, the outlet of the water outlet channel is communicated with the outlet of the water tank or penetrates out of the outlet of the water tank, the top of the siphon channel is provided with an exhaust hole, and in the process that the water of the water tank enters the siphon channel, the air in the siphon channel is exhausted through the exhaust hole; the valve core component is movably arranged in the siphon channel to close or open the water outlet; the driving piece is used for controlling the valve core assembly to open the water outlet, when the water outlet is opened, the air outlet is in a closed state, and water in the water tank is discharged to the water outlet channel through the water outlet, so that the siphon channel forms siphon. The siphon drain valve can realize labor-saving opening of drainage.

Description

Siphon drain valve and closestool

Technical Field

The utility model relates to the technical field of bathroom products, in particular to a siphon type drain valve and a closestool.

Background

In the technical scheme disclosed in the current siphon drain valve in the market, for example, patent publication number CN203795555U, and the patent name is "a siphon drain valve with adjustable height of siphon bend", the drain pipe 1, the siphon bend 2 and the water tank 3 form a siphon channel, when siphon drainage is started, the lifting rod 32 is lifted upwards, the lifting rod 32 drives the one-way valve plate 31 to move upwards, the one-way valve plate 31 can squeeze water in the water tank 3 upwards through the siphon bend 2 and then flow into the drain pipe 1, thereby realizing siphon, and enabling water in a container provided with the siphon drain valve to be discharged through the siphon channel. Because the existing siphon type drain valve extrudes water from one side of the siphon channel to the other side through the valve plate, so that the two sides of the siphon channel are filled with water to cause siphon (namely, the siphon channel needs to be manually driven by the water), when the water is extruded from one side of the siphon channel to the other side, certain requirements are required on the flow and the flow velocity of the water, otherwise, the siphon cannot be successfully initiated, and therefore, a large operation force is required to extrude enough water flow, and the water flow has a large enough flow velocity, so that the operation force value is large, and the use experience is poor.

In addition, low-profile toilets are currently popular with consumers, however, with existing siphon drain valves, such as those disclosed in the above-mentioned patents, the distance between the check valve plate 31 and the top wall of the siphon elbow 2 needs to be large (so that there is enough space to store a sufficient amount of water, and enough space for the check valve plate 31 to move a sufficient distance to allow a sufficient amount and flow rate of water to flow from the tank 3 to the drain 1), thus making the overall siphon drain valve occupy a large height space and unsuitable for use in low-profile toilet tanks. Accordingly, there is a need for an improvement over existing siphon drain valves that are suitable for use in low-profile toilet tanks.

Disclosure of Invention

In order to solve the above problems, it is an object of the present utility model to provide a siphon drain valve which can realize a labor-saving opening of drain.

The second object of the present utility model is to provide a toilet bowl which can achieve a low design while employing a siphon drain valve.

The utility model is realized by adopting the following technical scheme:

one of the technical schemes of the utility model is as follows:

a siphon drain valve disposed in a water tank, comprising:

the siphon device comprises a siphon channel, a water inlet channel, a water outlet channel and a water outlet positioned between the water inlet channel and the water outlet channel, wherein the water outlet is positioned lower than the water storage water level of the water tank, the inlet of the water inlet channel is communicated with the inner cavity of the water tank and lower than the water storage water level of the water tank, the outlet of the water outlet channel is communicated with the outlet of the water tank, or the outlet of the water outlet channel penetrates out of the outlet of the water tank, the top of the siphon channel is provided with an exhaust hole, and in the process that the water of the water tank enters the siphon channel, the air in the siphon channel is exhausted through the exhaust hole;

the valve core component is movably arranged in the siphon channel to close or open the water outlet, so as to control the on-off of the siphon channel;

and the driving piece is used for controlling the valve core assembly to open the water outlet, when the water outlet is opened, the air exhaust hole is in a closed state, and water in the water tank is discharged to the water outlet channel through the water outlet, so that the siphon channel forms siphon.

Preferably, the siphon channel is wholly lower than the water storage level of the water tank.

Preferably, the driving piece is arranged in the exhaust hole in a penetrating way, the inner end of the driving piece is positioned in the siphon channel and connected with the valve core component, and the exhaust hole is closed when the valve core component opens the water outlet.

Preferably, the vent hole is located above the drain opening, and the valve core assembly moves up and down between the vent hole and the drain opening.

Preferably, the water tank further comprises a siphon cover and an inner pipe, wherein the bottom end opening of the siphon cover is opened to the inner cavity of the water tank, and the top of the siphon cover is provided with the exhaust hole; the inner pipe is arranged in the siphon cover, openings are respectively arranged at the top end and the bottom end of the inner pipe, a gap is reserved between the top end opening of the inner pipe and the top wall of the siphon cover to form a water storage space, a gap is reserved between the inner side wall of the siphon cover and the outer wall of the inner pipe, the gap and the water storage space form the water inlet channel, the inner cavity of the inner pipe forms the water outlet channel, the bottom end opening of the siphon cover forms the inlet of the water inlet channel, the bottom end opening of the inner pipe forms the outlet of the water outlet channel, and the top end opening of the inner pipe forms the water outlet; the valve core component is movably arranged in the water storage space, and is driven by the driving piece to approach or depart from the water outlet so as to close or open the water outlet.

Preferably, a connecting part is arranged at the top of the inner pipe, the connecting part is arranged on the outer side of the water outlet in a surrounding mode, the inner pipe is fixedly connected with the siphon cover through the connecting part, a hollowed-out part is arranged on the peripheral wall of the connecting part, and the hollowed-out part is used for water passing; the lower terminal surface of roof is equipped with a plurality of first joint portions in the siphon cover, be provided with on the perisporium of connecting portion with second joint portion of first joint portion corresponding quantity, first joint portion with second joint portion joint is connected.

Preferably, the siphon further comprises an inverted U-shaped siphon, wherein the siphon channel is formed by an inner channel of the siphon, an opening at one end of the siphon forms an inlet of the water inlet channel, an opening at the other end of the siphon forms an outlet of the water outlet channel, and the water outlet is arranged on one side of the siphon with the outlet of the water outlet channel.

The second technical scheme of the utility model is as follows:

the utility model provides a closestool, includes the pedestal that has the bedpan and sets up the water tank at pedestal rear portion, be equipped with on the pedestal and communicate the water tank with the washing water course of bedpan, install the siphon drain valve of above arbitrary one in the water tank, the outlet with the export of water tank is linked together, the case subassembly is through the switching the outlet is in order to open and close the export of water tank, the export of play water passage with the washing water course is linked together.

Preferably, the bottom of the bedpan is provided with a first water seal, the flushing water channel comprises a cleaning channel leading to an upper flushing port of the bedpan, the flushing water channel further comprises a pre-stored water channel positioned at the upstream of the cleaning channel, the pre-stored water channel comprises a rising section extending upwards along the water flow direction, an outlet of the water tank forms an inlet of the pre-stored water channel, under the non-flushing state, pre-stored water exists in the pre-stored water channel under the action of atmospheric pressure and forms a second water seal, and a water seal surface of the second water seal is above a water seal surface of the first water seal.

Preferably, the rising section extends obliquely upwards or vertically upwards along the water flow direction, the outlet of the rising section forms the outlet of the pre-stored water channel, and the outlet of the water tank is higher than the outlet of the rising section.

Preferably, the bottom of the bedpan is provided with a lower flushing port positioned below the water level of the first water seal, the flushing water channel further comprises a spraying channel leading to the lower flushing port of the bedpan, and the outlet of the rising section is respectively communicated with the inlet end of the cleaning channel and the inlet end of the spraying channel; the second water seal is arranged at the upstream of the first water seal, and in the unwashed state, the water of the second water seal and the water of the first water seal are independent of each other and are not communicated.

Preferably, the point a of the top wall at the inlet of the ascending section is lower than the point b of the bottom wall at the outlet of the ascending section, the vertical distance between the point a and the point b is L, and the water sealing surface of the second water seal is above the point a in the unwashed state.

Preferably, the pre-stored water channel further comprises a horizontal section and a vertical section, the horizontal section and the rising section are sequentially and communicatively arranged along the water flow direction, the vertical section extends upwards from the top wall of the horizontal section to the inside of the water tank, the top opening of the vertical section forms an outlet of the water tank, and water flow in the vertical section flows downwards; the siphon type drain valve is arranged on the vertical section in a penetrating mode, a second through hole for the siphon type drain valve to be arranged on the bottom wall of the horizontal section in a penetrating mode is formed in the bottom wall of the horizontal section, and the bottom of the siphon type drain valve is connected with the second through hole in a locking mode.

Compared with the prior art, the siphon type drain valve and the closestool provided by the utility model have at least the following technical effects:

1. the utility model sets up siphon channel, valve core assembly, driving assembly, wherein, siphon channel has water inlet channel, water outlet port located between water inlet channel and water outlet channel, the position of the water outlet port is lower than the water storage water level of the water tank, the inlet of the water inlet channel is linked with cavity of the water tank and lower than the water storage water level of the water tank, the outlet of the water outlet channel is linked with outlet of the water tank, or the outlet of the water outlet channel is worn out of the outlet of the water tank, the top of the siphon channel has air vent, in the course of water of the water tank enters the siphon channel, the air in the siphon channel is discharged through the air vent; the valve core component is movably arranged in the siphon channel to close or open the water outlet, so as to control the on-off of the siphon channel; the driving piece is used for controlling the valve core assembly to open the water outlet, when the water outlet is opened, the air vent is in a closed state, water in the water tank is discharged to the water outlet channel through the water outlet, so that the siphon channel forms siphon. Because the utility model does not need to squeeze the water from one side of the siphon channel to the other side, the water in the water tank can automatically flow into the water outlet channel under the action of self gravitational potential energy, thereby saving more labor and having better operation hand feeling. In addition, the utility model has simple structure and reliable function.

2. The valve core assembly is utilized to simultaneously close the exhaust hole when the water outlet is opened, so that a part for closing the exhaust hole is not needed to be additionally arranged, and the structure is simpler and more compact, and parts are fewer.

3. The siphon drain valve comprises a siphon cover and an inner pipe, a siphon channel is formed through the cooperation of the siphon cover and the inner pipe, specifically, a gap is formed between the top end opening of the inner pipe and the top wall of the siphon cover to form a water storage space, a gap is reserved between the inner side wall of the siphon cover and the outer wall of the inner pipe, the gap and the water storage space form a water inlet channel of the siphon channel, and the inner cavity of the inner pipe forms a water outlet channel of the siphon channel.

4. The siphon drain valve comprises an inverted U-shaped siphon, wherein the inner channel of the siphon forms a siphon channel, one end of the siphon is opened to form an inlet of the water inlet channel, the other end of the siphon is opened to the outlet of the water outlet channel, and the water outlet is arranged on one side of the siphon with the outlet of the water outlet channel.

Compared with the prior art, the closestool provided by the utility model has at least the following technical effects:

1. the siphon type drain valve is arranged in the water tank of the closestool, and the moving distance of the valve core component of the siphon type drain valve can be designed to be smaller than that of the valve plate in the prior art, namely, the height of the whole siphon type drain valve can be designed to be shorter; moreover, as the siphon principle is adopted for draining, the water outlet can be designed to be higher, the lower part of the water tank can sink below the position of the water outlet, and the distance from the top wall of the water tank to the water outlet is not required to be larger, so that more parts of the water tank can be designed to sink into the seat body, and the parts of the water tank protruding out of the upper surface of the seat body are fewer, thereby being beneficial to the design of low-profile toilets. In addition, the position of the water outlet is required to be above the upper surface of the seat body in some standards, and the siphon type water outlet valve can realize the low-level design of the closestool under the condition of meeting the standard requirements.

2. The flushing water channel of the closestool also comprises a pre-stored water channel positioned at the upstream of the cleaning channel, the pre-stored water channel comprises a rising section extending upwards along the water flow direction, the outlet of the water tank forms an inlet of the pre-stored water channel, under the action of atmospheric pressure in the pre-stored water channel, the pre-stored water channel forms a second water seal, and when flushing, water flow can quickly flow into the bedpan for flushing due to the pre-stored water in the flushing water channel, so that the flushing effect is better.

3. Because the pre-stored water is maintained under the action of atmospheric pressure, when the valve core assembly is opened, the suction force of the pre-stored water to the valve core assembly needs to be overcome, namely, a part of the operation force value needs to counteract the suction force of the pre-stored water, and because the self-opening force value of the siphon type drain valve is smaller, even if the suction force of the pre-stored water needs to be overcome, the total operation force value is not too large, and better operation experience can be maintained.

4. The siphon type drain valve is combined with the toilet seat body with the pre-stored water channel, so that the whole toilet has the advantages of better flushing performance, low design and small operating force value.

Drawings

Fig. 1 is a simplified schematic diagram of a siphon drain valve according to a first embodiment of the present utility model installed in a water tank (in this case, a state in which a valve element assembly of the drain valve does not open a drain).

Fig. 2 is a schematic diagram showing a state of a siphon channel immediately after a valve element assembly of a siphon type drain valve opens a drain port according to a first embodiment of the present utility model.

Fig. 3 is a schematic view showing a state in which siphon drainage continues on the basis of the state of fig. 2.

Fig. 4 is a partially enlarged schematic view at B in fig. 3.

Fig. 5 is a schematic view showing a siphon drain valve assembly according to a first embodiment of the present utility model.

Fig. 6 is a schematic view showing a sectional state of a toilet bowl according to a third embodiment of the present utility model in a non-opened state of a siphon drain valve.

Fig. 7 is a schematic view showing a sectional state of a toilet bowl according to a third embodiment of the present utility model when a siphon drain valve opens to drain.

Fig. 8 is a top view of a toilet seat according to a third embodiment of the present utility model.

Fig. 9 is a schematic cross-sectional view taken along the direction A-A in fig. 8.

Fig. 10 is a schematic view showing a toilet seat according to a third embodiment of the present utility model separated from a siphon drain valve.

Reference numerals illustrate: 1-a seat body, 11-a bedpan, 111-an upper flushing port, 112-a lower flushing port, 12-a water tank, 121-an outlet of the water tank, 13-a flushing water channel, 131-a cleaning channel, 132-a pre-stored water channel, 1321-an ascending section, 1322-a vertical section, 1323-a horizontal section, 13231 second through holes and 133-a spraying channel; 2-siphon drain valve, 21-air sealing gasket, 22-siphon channel, 221-water inlet channel, 222-water outlet channel, 223-water outlet, 224-gas vent, 23-valve core component, 24-driving piece, 241-section, 25-water stopping gasket, 26-siphon cover, 261-first clamping part, 27-inner tube, 271-connecting part, 2711-second clamping part; w1-first water seal, W2-second water seal.

Detailed Description

The utility model will be further described with reference to the drawings and specific examples.

Referring to fig. 1 to 5, a siphon drain valve according to a first embodiment of the present utility model is disposed in a water tank 12, and includes:

a siphon channel 22 having a water inlet channel 221, a water outlet channel 222, and a water outlet 223 between the water inlet channel 221 and the water outlet channel 222, wherein the water outlet 223 is positioned lower than the water storage level of the water tank 12, the inlet of the water inlet channel 221 is communicated with the inner cavity of the water tank 12 and lower than the water storage level of the water tank 12, the outlet of the water outlet channel 22 is communicated with the outlet 121 of the water tank 12, or the outlet of the water outlet channel 22 passes through the outlet 121 of the water tank 12, an air outlet 224 is arranged at the top of the siphon channel 22, and the air in the siphon channel 22 is discharged through the air outlet 224 in the process that the water in the water tank 21 enters the siphon channel 22;

the valve core assembly 23 is movably arranged in the siphon channel 22 to close or open the water outlet 223, so as to control the on-off of the siphon channel 22;

and a driving part 24 for controlling the valve core assembly 23 to open the drain hole 223, wherein when the drain hole 223 is opened, the air vent 224 is in a closed state, and water in the water tank 1 is discharged to the water outlet channel 222 through the drain hole 223, so that the siphon channel 22 forms a siphon.

Compared with the problem that the siphon drain valve in the prior art needs to squeeze water from one side of a siphon channel to the other side (namely, needs to drive water by people) by using a valve plate, the siphon drain valve has the advantages that only the valve core assembly 23 is controlled by the driving piece 24 to open the drain outlet 223, once the drain outlet 223 is opened, water in the water tank 1 automatically flows into the water outlet channel 222 through the drain outlet 223 under the action of self gravitational potential energy, so that the whole siphon channel 22 is filled with water to induce siphon. Because the utility model does not need to squeeze the water from one side of the siphon channel to the other side, the water in the water tank can automatically flow into the water outlet channel under the action of self gravitational potential energy, thereby saving more labor and having better operation hand feeling.

Referring to fig. 1, the siphon channel 22 is preferably located entirely below the water level of the tank 12, which is more advantageous for creating a siphon effect. Of course, the top wall of the siphon channel 22 may be higher than the water level stored in the tank 12, as long as the water in the tank 12 can fill the siphon channel 22 after entering the siphon channel 22 when the drain port 223 is opened.

Referring to fig. 1 to 5, preferably, the driving member 24 is disposed through the air vent 224, and an inner end of the driving member 24 is disposed in the siphon channel 22 and connected to the valve core assembly 23, and the valve core assembly 23 closes the air vent 224 when the water outlet 223 is opened. The vent hole 224 is located above the drain hole 223, and the valve body assembly 23 moves up and down between the vent hole 224 and the drain hole 223. The vent 224 may provide a guide for movement of the driver 24 and the valve core assembly 23 may block the vent 224 when opened to ensure that the siphon channel 22 may drain by the siphon effect. Meanwhile, the vent hole 224 is closed by the valve core assembly 23, so that additional components for closing the vent hole 224 are not needed, and the structure is simpler, more compact and fewer in parts.

Specifically, the driving member 24 is in a rod shape, the valve core assembly 23 is in a disc shape, the lower end of the driving member 24 is fixed on the valve core assembly 23, the valve core assembly 23 comprises a valve disc, a water stop pad 25 arranged on the lower surface of the valve disc and an air seal pad 21 arranged on the upper surface of the valve disc, the valve core assembly 23 is in sealing fit with the water outlet 223 through the water stop pad 25, and the valve core assembly 23 is in sealing fit with the air outlet 224 through the air seal pad 21. Specifically, referring to fig. 5, the driving member 24 in this embodiment is formed by cutting a portion of a cylindrical rod-shaped body in an axial direction, the cutting portion is formed with a tangential surface 241, the outer diameter of the rod-shaped body is designed to match the inner diameter of the air vent 224, so that the air vent 224 guides the sliding movement of the driving member 24, and a ventilation gap is formed between the tangential surface 241 of the driving member 24 and the inner wall of the air vent 224, and during the water filling process of the water tank 12, water in the inner cavity of the water tank 12 enters the siphon channel 22, thereby pressing the air in the siphon channel 22 upward and discharging the air from the ventilation gap. In other embodiments, it is also possible to selectively form a ventilation gap by forming a ventilation groove on the outer wall of the driving member 24 along the axial direction, or form a ventilation gap by forming a ventilation groove on the inner wall of the air vent 224, or design the outer diameter of the driving member 24 to be smaller than the inner diameter of the air vent 224, so that a ventilation gap is formed between the outer wall of the driving member 24 and the inner wall of the air vent 224, and the specific ventilation structure is not limited as long as the air in the siphon channel 22 can be discharged from the air vent 224.

Referring to fig. 1 to 5, the siphon device preferably further comprises a siphon cover 26 and an inner pipe 27, wherein the bottom end opening of the siphon cover 26 is opened to the inner cavity of the water tank 21, and the top of the siphon cover 26 is provided with the exhaust hole 224; the inner tube 27 is disposed in the siphon cover 26, openings are respectively disposed at the top and bottom ends of the inner tube 27, a gap is formed between the top opening of the inner tube 27 and the top wall of the siphon cover 26 to form a water storage space, a gap is left between the inner side wall of the siphon cover 26 and the outer wall of the inner tube 27, the gap and the water storage space form the water inlet channel 221, and the inner cavity of the inner tube 27 forms the water outlet channel 222. The bottom opening of the siphon cover 26 forms the inlet of the water inlet channel 221, the bottom opening of the inner pipe 27 forms the outlet of the water outlet channel 222, and the top opening of the inner pipe 27 forms the water outlet 223. The valve core assembly 23 is movably disposed in the water storage space, and the valve core assembly 23 is driven by the driving member 24 to approach or separate from the water outlet 223, so as to close or open the water outlet 223.

Referring to fig. 1 to 5, preferably, a connection portion 271 is disposed at the top of the inner tube 27, the connection portion 271 is disposed around the outside of the drain port 223, the inner tube 27 and the siphon cover 26 are fixedly connected through the connection portion 271, and a hollow portion is disposed on a peripheral wall of the connection portion 271, and is used for water passing; the lower end face of the inner top wall of the siphon cover 26 is provided with a plurality of first clamping parts 261, the peripheral wall of the connecting part 271 is provided with a plurality of second clamping parts 2711 corresponding to the first clamping parts 261, and the first clamping parts 261 are in clamping connection with the second clamping parts 2711. By the design, the siphon cover 26 is convenient to fixedly connect with the inner pipe 27, and the assembly is more convenient. The first and second engaging portions 261 and 2711 may be fixedly connected by screw connection, in addition to the engaging connection.

It should be noted that fig. 1 to 5 only show the main components of the siphon drain valve of the present embodiment, and the other components not related to the utility model are not shown, for example, the driving member 24 may be connected to a lifting rod or a lifting rope, through which the driving member 24 is lifted upwards. The driving member 24 may be driven manually or electrically.

Referring to fig. 1 to 3, fig. 1 shows a state in which the valve body assembly 23 of the present embodiment does not open the drain port 223, fig. 2 shows a state in which the siphon channel 22 is just siphoned after the valve body assembly 23 opens the drain port 223, and fig. 3 shows a state in which siphon drainage is continued on the basis of the state of fig. 2.

A siphon drain valve (not shown) according to a second embodiment of the present utility model is different from the first embodiment in that the siphon channel 22 is formed by a siphon cover 26 and an inner tube 27, and the siphon cover 26 and the inner tube 27 are replaced with an inverted U-shaped siphon tube (not shown) instead of the siphon cover 26 and the inner tube 27 according to the first embodiment. Specifically, the siphon tube has an inner passage forming the siphon passage 22, an opening at one end forming an inlet of the water inlet passage 221, an opening at the other end forming an outlet of the water outlet passage 222, and the drain port 223 is provided at one side of the siphon tube having the outlet of the water outlet passage 222.

The remaining undescribed structures of this embodiment may refer to the first embodiment, and will not be described here again.

Referring to fig. 6 to 10, a toilet according to a third embodiment of the present utility model includes a base 1 having a toilet bowl 11 and a water tank 12 disposed at the rear of the base 1, wherein a flushing channel 13 is further provided on the base 1 to communicate the water tank 12 with the toilet bowl 11. The siphon drain valve 2 as described in any one of the above is installed in the water tank 12, the drain port 223 is connected to the outlet 121 of the water tank 12, the valve body assembly 23 opens and closes the outlet 121 of the water tank 12 by opening and closing the drain port 223, and the outlet of the water outlet passage 222 is connected to the flushing channel 13. The bottom of the bedpan 11 is provided with a first water seal W1, and water in the water tank 12 flows to the bedpan 11 through the flushing water channel 13 to flush the bedpan 11.

Preferably, the specific structure of the base 1 is further designed as follows:

the flush water passage 13 includes a flush channel 131 leading to the upper flush port 111 of the bowl 11 and a pre-stored water channel 132 upstream of the flush channel 131. The pre-stored water channel 132 includes a rising section 1321 extending upward along the water flow direction, the outlet 121 of the water tank 12 forms an inlet of the pre-stored water channel 132, and in the unwashed state, the pre-stored water channel 132 has pre-stored water under the action of atmospheric pressure and forms a second water seal W2 (as shown in fig. 6), and the water seal surface of the second water seal W2 is above the water seal surface of the first water seal W1. The second water seal W2 is upstream of the first water seal W1, and in the unwashed state, the water of the second water seal W2 and the water of the first water seal W1 are independent of each other and are not communicated.

Referring to fig. 6 to 9, by providing the pre-stored water channel 132 located upstream of the washing channel 131 on the flushing channel 13, the pre-stored water channel 132 has an ascending section 1321 extending upward, and in the non-flushing state, the pre-stored water channel 132 can pre-store water under the action of atmospheric pressure, so that when flushing is performed, the water flow can flush the toilet bowl 11 quickly due to the pre-stored water in the pre-stored water channel 132, the flushing force is large, and the flushing effect is better; and, the pre-stored water channel 132 is located upstream of the washing channel 131, and during the flushing process, the water of the pre-stored water channel 132 enters the washing channel 131 and flows out from the upper flushing port 111 of the bedpan 11 to flush the inner wall of the bedpan 11. Compared with the prior art, the utility model does not need to provide a one-way valve to prevent external air from entering the pre-stored water channel through the washing channel 131, but only designs the pre-stored water channel 132 to be positioned at the upstream of the washing channel 131, and the pre-stored water channel 132 is provided with the ascending section 1321, so that the structure is simpler, and the function is reliable.

The rising section 1321 may extend obliquely upward or vertically upward along the water flow direction, and in this embodiment, a manner of extending obliquely upward is specifically adopted, which is more beneficial to the flow of the water flow, so that the energy loss of the water flow in the rising section 1321 is smaller. The outlet of the rising section 1321 forms the outlet of the pre-stored water passage 132, that is, the pre-stored water passage 132 refers to a passage from the outlet 121 of the water tank 12 to the outlet of the rising section 1321. The outlet 121 of the tank 12 (i.e., the inlet of the pre-stored water passage 132) is located at a higher position than the outlet of the rising section 1321 (i.e., the outlet of the pre-stored water passage 132). Under atmospheric pressure, there is a level difference in the pre-stored water passage 132, and the level near the outlet of the rising section 1321 is lower than the level near the outlet 121 of the water tank 12.

The bottom of the bedpan 11 is provided with a lower flushing port 112 below the water level of the first water seal W1, the flushing water channel 13 further comprises a spraying channel 133 leading to the lower flushing port 112 of the bedpan 11, and the outlet of the rising section 1321 is respectively communicated with the inlet end of the washing channel 131 and the inlet end of the spraying channel 133, that is, the water flow of the pre-storing water channel 132 is split at the outlet of the pre-storing water channel 132, one part flows to the washing channel 131, and the other part flows to the spraying channel 133. The water flow to the cleaning channel 131 flows to the upper flushing port 111 of the bedpan 11 to clean the inner wall of the bedpan 11, and the water flow to the spraying channel 133 flows to the lower flushing port 112 of the bedpan 11 to spray the sewage pipe, so that the sewage pipe is caused to form siphonage.

The top wall a at the water inlet of the rising section 1321 is lower than the bottom wall b at the water outlet of the rising section 1321, and the vertical distance between the point a and the point b is L (as shown in fig. 7). In the unwashed state, the water seal surface of the second water seal W2 is above the point a.

The lower part of the water tank 12 is lower than the upper surface of the seat body 1, so that the inner space of the seat body 1 can be fully utilized, and the height of the part of the water tank 12 protruding out of the upper surface of the seat body 1 can be designed to be shorter, so that the design of the appearance of the toilet seat body 1 can be more flexible.

The rising section 1321 extends obliquely upwards along the water flow direction, and the angle of the inclination angle of the rising section 1321 with the horizontal plane ranges from 30 degrees to 80 degrees. Specifically, the inclination angle of the rising section 1321 with respect to the horizontal plane may be 30 °, 40 °, 50 °, 60 °, 70 °, 80 °, or the like.

The top wall of the rising section 1321 serves as a part of the bottom wall of the water tank 12, so that the internal structure of the housing 1 is more compact.

The pre-stored water channel 132 further comprises a horizontal segment 1323 and a vertical segment 1322, the horizontal segment 1323 and the rising segment 1321 are sequentially and communicatively arranged along the water flow direction, the vertical segment 1322 extends upwards from the top wall of the horizontal segment 1323 to the inside of the water tank 12, the top opening of the vertical segment 1322 forms the outlet 121 of the water tank 12, and the water flow in the vertical segment 1322 flows downwards.

In this embodiment, the inner tube 27 of the siphon drain valve 2 is disposed through the vertical segment 1322. The bottom wall of the horizontal section 1323 is provided with a second through hole 13231 for penetrating and installing the inner tube 27, and the bottom of the inner tube 27 is in locking connection with the second through hole 13231. This design makes it possible to fix the inner tube 27 more easily and simply.

Under the non-flushing state, since the siphon type drain valve 2 is in a state of closing the outlet 121 of the water tank 12, under the action of atmospheric pressure, the vertical section 1322, the horizontal section 1323 and the ascending section 1321 all have pre-stored water therein (at this time, the liquid level of the pre-stored water in the vertical section 1322 is higher than that of the pre-stored Shui Zaishang-liter section 1321, and the atmospheric pressure maintains the liquid level difference), so that more water is not required for filling the pre-stored water channel 132 during flushing, and the water flow can be transferred to the bedpan 11 more quickly, thereby flushing rapidly. And the transition part between the top of the inner pipe 27 and the connecting part 271 is provided with a step, and the step is in sealing contact with the top end of the vertical segment 1322 of the pre-stored water channel through an annular sealing gasket, so that water in the water tank 1 is prevented from entering the pre-stored water channel 132 from the top end opening of the vertical segment 1322. The step of the inner tube 27 is used to position the inner tube 27 on the vertical segment 1322, and when the siphon cover 26 is covered on the inner tube 27, the siphon drain valve 2 of the present utility model is installed in the water tank 1. The opening side of the lower end of the inner tube 27 of the siphon type drain valve 2 (the side facing away from the inclined section of the flushing water channel 13) is provided with a connecting plate, the bottom end of the connecting plate is connected with a connecting tube, and the connecting tube passes through the second through hole 13231 and is in locking fit with a locking nut, so that the inner tube 27 is fixed. Of course, the fixing manner of the inner tube 27 is not limited to this, and it may be fixed by a snap-fit manner or the like.

The working process of the utility model is as follows:

referring to fig. 6, at the end of each drainage, the siphon type drainage valve 2 seals the outlet 121 of the water tank 12 to close the communication between the water tank 12 and the pre-stored water passage 132, and at this time, there is a negative pressure in the pre-stored water passage 132, so that there is pre-stored water in the pre-stored water passage 132 under the action of atmospheric pressure, and the pre-stored water forms a water seal, i.e., a second water seal W2;

referring to fig. 7, when flushing is performed, the driving member 24 of the siphon drain valve 2 is driven to drive the valve core assembly 23 to open the outlet 121 of the water tank 12, at this time, water from the water tank 12 enters the pre-stored water channel 132, and since water is already present in the pre-stored water channel 132, water can flow into the spraying channel 133 and out of the lower flushing port 112 of the bowl, and water can flow into the washing channel 131 and out of the upper flushing port 111 of the bowl, and the directions of the two water flows can be specifically referred to as arrow directions shown in fig. 7. After the flushing, the siphon type drain valve 2 reseals the outlet 121 of the water tank 12, and the pre-stored water is restored in the pre-stored water passage 132 to the state shown in fig. 6.

The points to be described are: first, in the description of the present application, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, which may be changed when the absolute position of the object being described is changed.

Secondly: in the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures may refer to the general design, so that the same embodiment and different embodiments of the present disclosure may be combined with each other without conflict.

Finally, the above description is only a preferred embodiment of the present utility model, and the scope of the present utility model is not limited to the above examples, but all technical solutions belonging to the concept of the present utility model are within the scope of the present utility model.

It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims (13)

1. A hydrocone type drain valve locates in the water tank, its characterized in that: comprising the following steps:

the siphon device comprises a siphon channel, a water inlet channel, a water outlet channel and a water outlet positioned between the water inlet channel and the water outlet channel, wherein the water outlet is positioned lower than the water storage water level of the water tank, the inlet of the water inlet channel is communicated with the inner cavity of the water tank and lower than the water storage water level of the water tank, the outlet of the water outlet channel is communicated with the outlet of the water tank, or the outlet of the water outlet channel penetrates out of the outlet of the water tank, the top of the siphon channel is provided with an exhaust hole, and in the process that the water of the water tank enters the siphon channel, the air in the siphon channel is exhausted through the exhaust hole;

the valve core component is movably arranged in the siphon channel to close or open the water outlet, so as to control the on-off of the siphon channel;

and the driving piece is used for controlling the valve core assembly to open the water outlet, when the water outlet is opened, the air exhaust hole is in a closed state, and water in the water tank is discharged to the water outlet channel through the water outlet, so that the siphon channel forms siphon.

2. A siphon drain valve according to claim 1, wherein: the siphon channel is wholly lower than the water storage level of the water tank.

3. A siphon drain valve according to claim 1, wherein: the driving piece is arranged in the exhaust hole in a penetrating mode, the inner end of the driving piece is located in the siphon channel and connected with the valve core assembly, and the exhaust hole is closed when the valve core assembly opens the water outlet.

4. A siphon drain valve according to claim 3, wherein: the exhaust hole is positioned above the water outlet, and the valve core component moves up and down between the exhaust hole and the water outlet.

5. A siphon drain valve according to claim 1, wherein: the siphon device also comprises a siphon cover and an inner pipe, wherein the bottom end opening of the siphon cover is opened to the inner cavity of the water tank, and the top of the siphon cover is provided with the exhaust hole; the inner pipe is arranged in the siphon cover, openings are respectively arranged at the top end and the bottom end of the inner pipe, a gap is reserved between the top end opening of the inner pipe and the top wall of the siphon cover to form a water storage space, a gap is reserved between the inner side wall of the siphon cover and the outer wall of the inner pipe, the gap and the water storage space form the water inlet channel, the inner cavity of the inner pipe forms the water outlet channel, the bottom end opening of the siphon cover forms the inlet of the water inlet channel, the bottom end opening of the inner pipe forms the outlet of the water outlet channel, and the top end opening of the inner pipe forms the water outlet; the valve core component is movably arranged in the water storage space, and is driven by the driving piece to approach or depart from the water outlet so as to close or open the water outlet.

6. A siphon drain valve according to claim 5, wherein: the top of the inner pipe is provided with a connecting part, the connecting part is arranged on the outer side of the water outlet in a surrounding mode, the inner pipe is fixedly connected with the siphon cover through the connecting part, the peripheral wall of the connecting part is provided with a hollowed-out part, and the hollowed-out part is used for water passing; the lower terminal surface of roof is equipped with a plurality of first joint portions in the siphon cover, be provided with on the perisporium of connecting portion with second joint portion of first joint portion corresponding quantity, first joint portion with second joint portion joint is connected.

7. A siphon drain valve according to claim 1, wherein: the siphon also comprises an inverted U-shaped siphon, wherein the siphon channel is formed by the inner channel of the siphon, the inlet of the water inlet channel is formed by the opening at one end of the siphon, the outlet of the water outlet channel is formed by the opening at the other end of the siphon, and the water outlet is arranged on one side of the siphon with the outlet of the water outlet channel.

8. The utility model provides a closestool, is in including the pedestal that has the bedpan and setting the water tank at pedestal rear portion, be equipped with on the pedestal and communicate the water tank with the washing water course of bedpan, its characterized in that: the siphon drain valve as defined in any one of claims 1-7 is installed in the water tank, the drain port is communicated with the outlet of the water tank, the valve core assembly is used for opening and closing the outlet of the water tank by opening and closing the drain port, and the outlet of the water outlet channel is communicated with the flushing water channel.

9. A toilet according to claim 8, wherein: the bottom of bedpan has first water seal, wash the water course and including the washing passageway that leads to the last mouth of washing of bedpan, wash the water course still including being located wash the passageway upstream and prestoring the water passageway and including along the ascending section that water flow direction upwards extends, the export of water tank forms prestoring the entry of water passageway, under the unwashed state, prestoring the water passageway under the atmospheric pressure effect and forming the second water seal, the water seal face of second water seal is in above the water seal face of first water seal.

10. A toilet according to claim 9, wherein: the rising section extends upwards in an inclined mode or extends upwards vertically along the water flow direction, the outlet of the rising section forms the outlet of the pre-stored water channel, and the position of the outlet of the water tank is higher than that of the outlet of the rising section.

11. A toilet according to claim 10, wherein: the bottom of the bedpan is provided with a lower flushing port positioned below the water level of the first water seal, the flushing water channel also comprises an injection channel leading to the lower flushing port of the bedpan, and the outlet of the rising section is respectively communicated with the inlet end of the cleaning channel and the inlet end of the injection channel; the second water seal is arranged at the upstream of the first water seal, and in the unwashed state, the water of the second water seal and the water of the first water seal are independent of each other and are not communicated.

12. A toilet according to claim 9, wherein: the point a of the top wall at the inlet of the ascending section is lower than the point b of the bottom wall at the outlet of the ascending section, the vertical distance between the point a and the point b is L, and the water sealing surface of the second water seal is above the point a in the unwashed state.

13. A toilet according to claim 9, wherein: the pre-storing water channel further comprises a horizontal section and a vertical section, the horizontal section and the rising section are sequentially communicated in the water flow direction, the vertical section extends upwards from the top wall of the horizontal section to the inside of the water tank, an opening at the top end of the vertical section forms an outlet of the water tank, and water flow in the vertical section flows downwards; the siphon type drain valve is arranged on the vertical section in a penetrating mode, a second through hole for the siphon type drain valve to be arranged on the bottom wall of the horizontal section in a penetrating mode is formed in the bottom wall of the horizontal section, and the bottom of the siphon type drain valve is connected with the second through hole in a locking mode.