CN111486252A

CN111486252A - Overflow valve

Info

Publication number: CN111486252A
Application number: CN202010485307.0A
Authority: CN
Inventors: 陈雪瑜
Original assignee: Guli Xiamen Technology Co Ltd
Current assignee: Guli Xiamen Technology Co Ltd
Priority date: 2020-06-01
Filing date: 2020-06-01
Publication date: 2020-08-04

Abstract

The invention discloses an overflow valve which comprises a shell and a swinging lever assembly, wherein a water guide cavity is formed in the shell, a water inlet pipe and a water outlet pipe are respectively arranged at the top and the bottom of the shell, and the bottom of the water inlet pipe extends into the water guide cavity. The side of the water inlet pipe is fixedly provided with a supporting piece. The swinging lever assembly comprises a lever guide post, a water seal structure and a load, wherein the lever guide post is hinged with the lower part of the supporting piece, the water seal structure is fixedly arranged at one end of the lever guide post, and the load is fixedly arranged at the other end of the lever guide post. The water seal structure comprises a partition plate and an annular water baffle plate, a water storage area is formed by enclosing the annular water baffle plate and the partition plate, and the bottom of the water inlet pipe extends into the water storage area. Under normal conditions, the swinging lever assembly is in a closed state under the balance action of a load, water in the water storage area plays a role in isolating air, when the drain valve drains water, external air cannot enter the drain port from the water inlet pipe, and the water drainage speed is greatly improved due to a siphon effect; when the pressure applied to the water seal structure is larger than the acting force of the load, the lever guide post rotates and opens the water inlet pipe to realize overflow.

Description

Overflow valve

Technical Field

The invention relates to the field of bathrooms, in particular to an overflow valve.

Background

The existing drain valve consists of a valve body, a base and an overflow pipe. Wherein the valve base is communicated with the overflow pipe. Under the normal stagnant water state, the outside air passes through overflow pipe and drain valve base outlet intercommunication. When the overflow phenomenon occurs, water flows from the overflow pipe to the water discharge valve base water discharge port and enters the toilet bowl pipeline. When the drain valve is opened, water flows out through the drain outlet of the drain valve base, and when the drain valve is normally used, the drain outlet of the drain valve base is communicated with outside air through the overflow pipe channel, negative pressure can be generated in the drain channel during draining, and air can be mixed into the drain outlet of the drain valve base together under the action of outside atmospheric pressure, so that the drain channel is not in a pipe full water state, and the drainage speed is reduced.

Disclosure of Invention

In order to solve the above problems, the present invention provides an overflow valve capable of isolating external air and having a good overflow effect.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

an overflow valve comprises a shell, wherein a water guide cavity is formed in the shell, a water inlet pipe and a water outlet pipe which are communicated with the water guide cavity are respectively arranged at the top and the bottom of the shell, and the bottom of the water inlet pipe extends into the water guide cavity. The water guide device is characterized by further comprising a swinging lever assembly, and a supporting piece is fixedly arranged at the top of the water guide cavity on the side edge of the water inlet pipe. The swinging lever component comprises a lever guide pillar, a water seal structure and a load, wherein the middle part of the lever guide pillar is hinged with the lower part of the supporting piece, the water seal structure is fixedly arranged at one end, close to the water inlet pipe, of the lever guide pillar, and the load is fixedly arranged at the other end of the lever guide pillar and is used for forming lever balance with the water seal structure. The water seal structure comprises a partition plate fixed on the lever guide post and an annular water baffle plate fixedly arranged at the top of the partition plate, a water storage area is formed by surrounding the annular water baffle plate and the partition plate, and the bottom of the water inlet pipe extends into the water storage area.

Preferably, in order to further improve the air insulation effect, the bottom surface of the water inlet pipe is in sealing fit with the upper surface of the partition plate.

In one embodiment, the load is a weight block, and the weight block is fixed at one end of the lever guide post far away from the water seal structure through threaded connection or buckle connection.

In another embodiment, the load is a spring, one end of the spring is fixed, and the other end of the spring is connected with the bottom of the lever guide post and is in a stretching state.

Preferably, a connecting rod is fixedly arranged on the top wall of the water guide cavity at the side edge of the supporting piece, a transverse plate is fixedly arranged at the lower part of the connecting rod at a position lower than the hinged fulcrum of the lever guide post, and the lower end of the spring is fixed on the transverse plate.

Furthermore, two sides of the lever guide pillar extend outwards respectively to form two positioning rods, the supporting piece comprises two supporting plates which are parallel to each other and arranged at intervals, positioning holes are formed in the supporting plates, and the two positioning rods are hinged to the positioning holes in the two connecting plates respectively.

Preferably, in order to prevent the lever guide post from being opened at an excessively large angle, a limiting boss for interference-fitting with the partition plate and limiting a rotation angle of the partition plate is formed at the bottom of the connecting plate in a downward extending manner.

Furthermore, in order to facilitate disassembly and assembly, the shell comprises an overflow upper cover and an overflow base which are mutually inserted, the water inlet pipe is fixedly arranged on the overflow upper cover, and the water outlet pipe is fixedly arranged on the overflow base.

Preferably, an overflow cap for preventing the generation of vortex is installed on the top of the water inlet pipe.

Preferably, in order to further improve the overflow effect and reduce the volume of the overflow valve, the water inlet pipe is eccentrically arranged relative to the central line of the overflow upper cover.

The invention has the following beneficial effects:

1. under normal conditions, sway the lever assembly and be in the closed condition under the balanced effect of load, the bottom of inlet tube stretches into in the water storage district, and the water in the water storage district plays the effect of isolation air. When the drain valve drains water, external air cannot enter the drain port of the drain valve from the water inlet pipe, and the siphon effect greatly improves the drainage speed; when the water pressure on the water seal structure is larger than the acting force of the load, the lever guide post drives the water seal structure to rotate and open the water inlet pipe, and the overflow valve realizes the overflow function.

2. The load can be balancing weight or spring, and balanced effect is good, simple structure, and installation and dismantlement are convenient.

3. Through at inlet tube top installation overflow cap, when taking place the overflow, the formation of the vortex above the inlet tube mouth of pipe has been prevented to the overflow cap, has effectively reduced the noise that the moisturizing sent, and the flow of water tends to stably to there is higher water velocity, thereby has improved the overflow capacity of overflow valve.

4. The limiting boss used for being in interference fit with the partition plate and limiting the rotating angle of the partition plate is arranged at the bottom of the supporting plate, so that the overflow valve can be effectively prevented from being failed due to the fact that the lever guide pillar is too large in opening angle and cannot reset, and the overflow valve can stably run.

5. The overflow valve of the invention can be arranged in the overflow pipe of the drain valve to realize the functions of isolating air and overflowing, and can also be independently arranged at the bottom of the water tank to realize the functions of overflowing and water replenishing.

Drawings

Fig. 1 is a schematic structural view of a relief valve of the present invention.

Fig. 2 is an exploded view of a relief valve according to the first embodiment.

Fig. 3 is a schematic view of an internal structure of the relief valve according to the first embodiment.

Fig. 4 is a schematic sectional view taken along the direction a-a in fig. 1.

Fig. 5 is a schematic perspective view of the overflow cover.

Fig. 6 is a schematic perspective view of the lever guide post.

Fig. 7 is an operation schematic diagram of the relief valve according to the first embodiment, where fig. 7a is a schematic diagram of the relief valve when closed, fig. 7b is a schematic diagram of the relief valve when open, and fig. 7c is a schematic diagram of the relief valve when fully open.

Fig. 8 is a schematic view showing a first usage state of the overflow valve of the first embodiment when the overflow valve is mounted on the overflow pipe of the drain valve.

Fig. 9 is a schematic view showing a second usage state of the overflow valve of the first embodiment when the overflow valve is mounted on the overflow pipe of the drain valve.

Fig. 10 is a third schematic view showing a state of use in which the overflow valve according to the first embodiment is mounted on the overflow pipe of the drain valve.

Fig. 11 is a schematic view showing a first usage state of the relief valve according to the first embodiment when the relief valve is mounted alone.

Fig. 12 is a schematic view showing a second usage state of the relief valve according to the first embodiment when the relief valve is mounted alone.

Fig. 13 is a schematic view showing a third operating state in which the relief valve according to the first embodiment is mounted alone.

Fig. 14 is an exploded view of a relief valve according to a second embodiment.

Fig. 15 is a schematic view of the internal structure of a relief valve according to a second embodiment.

Fig. 16 is a schematic perspective view of an overflow cover according to a second embodiment.

Fig. 17 is an operational schematic diagram of a relief valve according to a second embodiment, in which fig. 17a is a schematic diagram of the relief valve when closed, fig. 17b is a schematic diagram of the relief valve when open, and fig. 17c is a schematic diagram of the relief valve when fully open.

Description of the main component symbols: 1. a housing; 10. a water guide cavity; 101. a water inlet pipe; 102. a drain pipe; 103. an overflow upper cover; 104. an overflow base; 105. an overflow cap; 11. a support plate; 110. positioning holes; 111. a limiting boss; 12. a connecting rod; 13. a transverse plate; 2. a rocking lever assembly; 20. a water storage area; 21. a lever guide post; 210. positioning a rod; 22. a partition plate; 23. an annular water baffle; 24. a balancing weight; 25. buckling; 26. a spring; 3. a drain valve; 30. an overflow pipe; 4. a water inlet valve; 40. a water replenishing pipe; 5. a water tank.

Detailed Description

The invention is further described with reference to the following drawings and detailed description.

Example one

As shown in fig. 1-6, an overflow valve comprises a housing 1 and a rocking lever assembly, wherein a water guide cavity 10 is formed in the housing 1, a water inlet pipe 101 and a water outlet pipe 102 communicated with the water guide cavity 10 are respectively arranged at the top and the bottom of the housing 1, and the bottom of the water inlet pipe 101 extends into the water guide cavity 10. The top of the water guide cavity 10 is fixedly provided with a support member at the side of the water inlet pipe 101, the support member comprises two support plates 11 which are parallel to each other and arranged at intervals, and the support plates 11 are provided with positioning holes 110.

The swinging lever assembly 2 comprises a lever guide post 21, the middle part of which is hinged with the lower part of the supporting part, a water seal structure which is fixedly arranged at one end of the lever guide post 21 close to the water inlet pipe 101, and a load which is fixedly arranged at the other end of the lever guide post 21 and is used for forming lever balance with the water seal structure. The load is a balancing weight 24, and the balancing weight 24 is fixed at one end part of the lever guide post 21 far away from the water seal structure through a buckle 25. The water seal structure comprises a partition plate 22 fixed on the lever guide post 21 and an annular water baffle 23 fixed on the top of the partition plate 22, and a water storage area 20 is formed by the annular water baffle 23 and the partition plate 22 in a surrounding manner. The bottom of the water inlet pipe 101 extends into the water storage area 20, and the bottom surface of the water inlet pipe 101 is in sealing fit with the upper surface of the partition plate 22. Two sides of the lever guide post 21 extend outwards to form two positioning rods 210, and the two positioning rods 210 are hinged to the positioning holes 110 on the two connecting plates 11. The bottom of the connecting plate 11 extends downward to form a limit boss 111 for interference fit with the partition 22 and limiting the rotation angle of the partition 22.

The casing 1 comprises an overflow upper cover 103 and an overflow base 104 which are inserted into each other, the water inlet pipe 101 is fixedly arranged on the overflow upper cover 103, and the water outlet pipe 102 is fixedly arranged on the overflow base 104. An overflow cap 105 for preventing vortex generation is installed on the top of the inlet pipe 101, and the inlet pipe 101 is eccentrically arranged with respect to the center line of the overflow upper cover 103.

As shown in fig. 7, under normal conditions, the lever guide post 21 is in a closed state (fig. 7a) because the moment M1 of the counter weight 24 is greater than the moment M2 of the other end of the lever guide post 21 due to the gravity of the counter weight 24; when the water seal structure is subjected to external force (for example, water is supplemented through a water supplementing pipe), and the moment M4 is greater than the moment M3 of the counterweight block 24, the lever guide post 21 is opened (fig. 7 b); when the water seal structure is subjected to an external force to increase continuously (for example, the water tank overflows), and the moment M6 is greater than the moment M5 of the counterweight block 24, the lever guide post 21 is completely opened to realize overflow (fig. 7 c).

Fig. 8 to 10 are schematic views showing a state of use of the overflow valve of the present embodiment when the overflow valve is mounted on the overflow pipe 30 of the drain valve 3. The overflow outlet is arranged on the side wall of the water outlet of the valve base, and the initial state is as follows: the lever guide post 21 is in a closed state because the moment of the counter weight block 24 is greater than the moment of the other end of the lever guide post 21; when the water inlet valve 4 works, two streams of water are injected into the water tank 5, and the other stream of water is injected into the water inlet pipe 101 through the water supplementing pipe 40. When the moment generated by the flowing water stored in the water inlet pipe 101 is larger than the moment of the balancing weight 24, the lever guide post 21 is opened, and the redundant water enters the toilet pipeline through the water outlet of the valve base to realize the function of water supplement.

When the water tank 5 is in a normal full water state, the working water level line is lower than the overflow water level line, the moment of the counter weight block 24 is larger than the moment of the other end of the lever guide pillar 21, and the lever guide pillar 21 is in a closed state. The bottom end of the inlet pipe 101 is located in the impoundment area 20, and the water in the impoundment area 20 plays a role of isolating air. That is, the valve base drain port cannot communicate with the outside air through the overflow pipe 30.

When the water inlet valve 4 does not stop water and continuously enters water, the water tank 5 overflows, the water flows into the water inlet pipe 101 from the side edge of the overflow cap 105, when the moment generated by the flowing water stored in the water inlet pipe 101 is larger than the moment of the counterweight block 24, the lever guide post 21 is completely opened, and the water flows to a toilet pipeline through the water outlet of the valve base to realize overflow.

Fig. 11 to 13 are schematic views showing the use state of the relief valve of the present embodiment when it is mounted alone. The overflow pipe 30 is independently installed on the water tank 5, the overflow outlet is arranged at the bottom of the water tank 5, and the side wall of the water outlet of the base of the drain valve is not provided with an overflow channel. Initial state: the lever guide post 21 is in a closed state because the moment of the counter weight block 24 is greater than the moment of the other end of the lever guide post 21; when the water inlet valve 4 works, two streams of water are injected into the water tank 5, and the other stream of water is injected into the water inlet pipe 101 through the water supplementing pipe 40. When the moment generated by the flowing water stored in the water inlet pipe 101 is larger than the moment of the balancing weight 24, the lever guide post 21 is opened, and the surplus water enters the toilet pipeline through the overflow pipe 30 to realize the function of water supplement.

When the water inlet valve 4 does not stop water and continuously enters water, the water tank 5 overflows, the water flows into the water inlet pipe 101 from the side edge of the overflow cap 105, when the moment generated by the flowing water stored in the water inlet pipe 101 is larger than the moment of the counterweight block 24, the lever guide post 21 is completely opened, and the water flows to the toilet pipeline through the overflow pipe 30 to realize overflow.

Example two

As shown in fig. 14-16, the present embodiment differs from the first embodiment only in that: the load is a spring 26, a connecting rod 12 is fixedly arranged on the top wall of the water guide cavity 10 at the side edge of the supporting piece, a transverse plate 13 is fixedly arranged at the lower part of the connecting rod 12 at a position lower than the hinged fulcrum of the lever guide post 21, the lower end of the spring 26 is fixed on the transverse plate 13, and the upper end of the spring is connected with the bottom of the lever guide post 21 and is in a stretching state. The rest of the structure of the present embodiment is the same as that of the first embodiment.

As shown in fig. 17, under normal conditions, the lever guide post 21 is under the action of the pulling force of the spring 26, the moment M1 generated by the spring 26 is greater than the moment M2 at the other end of the lever guide post 21, and the lever guide post 21 is in a closed state (fig. 17 a); when the water seal structure is subjected to external force (for example, water is supplemented through a water supplementing pipe), and the moment M4 is larger than the moment M3 generated by the spring 26, the lever guide post 21 is opened (fig. 17 b); when the water seal structure is subjected to an external force to increase continuously (for example, the water tank overflows), and the moment M6 is larger than the moment M5 generated by the spring 26, the lever guide post 21 is completely opened to realize the overflow (FIG. 17 c). The rest of the installation modes and the realized functions of the embodiment are the same as those of the first embodiment.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The overflow valve comprises a shell, wherein a water guide cavity is formed in the shell, a water inlet pipe and a water drain pipe which are communicated with the water guide cavity are respectively arranged at the top and the bottom of the shell, and the bottom of the water inlet pipe extends into the water guide cavity and is characterized in that: the water inlet pipe is characterized by further comprising a swinging lever assembly, the top of the water guide cavity is arranged at the side edge of the water inlet pipe, the swinging lever assembly comprises a lever guide pillar, a water seal structure and a load, the middle portion of the lever guide pillar is hinged to the lower portion of the supporting piece, the water seal structure is fixedly arranged at one end, close to the water inlet pipe, of the lever guide pillar, the other end of the lever guide pillar is fixedly arranged at the other end of the lever guide pillar and used for forming lever balance with the water seal structure, the water seal structure comprises a partition plate and an annular water baffle plate, the partition plate is fixedly arranged on the lever guide pillar, the annular water.

2. A relief valve as defined in claim 1 wherein: the bottom surface of the water inlet pipe is in sealing fit with the upper surface of the partition plate.

3. A relief valve according to claim 1 or 2, characterized in that: the load is a balancing weight, and the balancing weight is fixedly connected with the end part of one end of the lever guide column far away from the water seal structure through threads or buckles.

4. A relief valve according to claim 1 or 2, characterized in that: the load is a spring, one end of the spring is fixed, and the other end of the spring is connected with the bottom of the lever guide post and is in a stretching state.

5. The relief valve according to claim 4, wherein: the top wall of the water guide cavity is fixedly provided with a connecting rod at the side edge of the supporting piece, the lower part of the connecting rod is fixedly provided with a transverse plate at the position lower than the hinged fulcrum of the lever guide pillar, and the lower end of the spring is fixed on the transverse plate.

6. A relief valve as defined in claim 1 wherein: the two sides of the lever guide pillar extend outwards respectively to form two positioning rods, the supporting piece comprises two supporting plates which are parallel to each other and arranged at intervals, positioning holes are formed in the supporting plates, and the two positioning rods are hinged to the positioning holes in the two connecting plates respectively.

7. The relief valve according to claim 6, wherein: the bottom of the connecting plate extends downwards to form a limiting boss which is used for being in interference fit with the partition plate and limiting the rotating angle of the partition plate.

8. A relief valve as defined in claim 1 wherein: the shell comprises an overflow upper cover and an overflow base which are mutually inserted, the water inlet pipe is fixedly arranged on the overflow upper cover, and the water outlet pipe is fixedly arranged on the overflow base.

9. The relief valve of claim 8, wherein: an overflow cap for preventing vortex generation is installed at the top of the water inlet pipe.

10. The relief valve of claim 8, wherein: the water inlet pipe is eccentrically arranged relative to the central line of the overflow upper cover.