CN214940781U - Overflow assembly - Google Patents

Abstract

The utility model discloses an overflow assembly, including overflow base, flotation pontoon and guide, inside intake antrum and the drainage channel of being provided with of overflow base, the flotation pontoon is established at the intake intracavity and can move about from top to bottom. The air vent has been seted up at the flotation pontoon top, and the flotation pontoon bottom is in the outside vertical extension downwards of air vent and forms a sleeve, and the sleeve is provided with guide way along the axial. The guide piece comprises a sealing base and a guide column arranged at the top of the sealing base, and the bottom of the sealing base is matched with the top of the drainage channel and blocks the drainage channel. The upper end of the guide post extends into the guide channel and is linked with the sleeve, and the top of the guide post is matched with the bottom of the floating barrel and blocks the vent hole. The guide piece is provided with an air channel used for communicating the vent hole with the drainage channel when the floating pontoon floats upwards in the axial direction. When the float bowl is closed, the overflow assembly isolates the drainage valve outlet from being communicated with the outside air, and the drainage speed is greatly improved; when overflow occurs, the floating pontoon floats upwards and releases pressure firstly, so that the overflow device is not influenced by negative pressure of a pipeline and has good overflow effect.

Description

Overflow assembly

Technical Field

The utility model relates to a bathroom field, in particular to overflow subassembly.

Background

The overflow pipe on the side of the toilet drain valve is communicated with the drain outlet at the bottom of the drain valve, and when the toilet drain valve is normally used, the drain outlet of the base of the drain valve is communicated with the outside air through the overflow pipe, so that negative pressure can be generated in the drain channel during drainage, and the air can be mixed into the drain valve to serve as the drain outlet under the action of the outside atmospheric pressure, so that the drain channel is not in a pipe full water state, and the drainage speed is reduced. The existing method generally achieves the effect of isolating the external air by arranging an overflow assembly on an overflow pipe and arranging a sealing element in the overflow assembly. However, in actual use, due to the negative pressure effect in the pipeline, the sealing member of the overflow assembly acts in a reverse direction, so that the overflow effect is not good. The conventional solution is that increase the flotation pontoon volume of overflow subassembly, increase flotation pontoon buoyancy and overcome "negative pressure" power and satisfy the overflow effect, and this kind of mode can increase the valve and occupy the water tank space of toilet bowl, influences the toilet bowl molding, and is poor with toilet bowl matching nature.

Disclosure of Invention

To the technical problem who exists among the background art, the utility model aims to provide a small in size, can completely cut off the good overflow assembly of outside air and overflow effect.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

an overflow assembly includes an overflow base, a float, and a guide. The inside of overflow base is provided with inlet chamber and drainage channel that distributes about being and communicate each other. The flotation pontoon is established the water cavity and can move about from top to bottom, and the air vent has been seted up at the flotation pontoon top, and the flotation pontoon bottom is in the outside vertical extension downwards of air vent forms a sleeve, the sleeve is provided with the guide way who link up along the axial. The guide piece comprises a sealing base and a guide post vertically arranged at the top of the sealing base, the bottom of the sealing base is matched with the top of the drainage channel and blocks the drainage channel, the upper end of the guide post extends into the guide channel and is linked with the sleeve, and the top of the guide post is matched with the bottom of the buoy and blocks the vent hole. And the guide piece is axially provided with a gas channel for communicating the vent hole with the drainage channel when the buoy floats upwards.

Further, sealing base include the bottom plate, set firmly support the head and the joint of bottom plate below is installed sealing rubber mat between bottom plate and the support head, sealing rubber mat's bottom with drainage channel's top cooperation forms airtightly.

Preferably, in order to achieve a better sealing effect, the top of the drainage channel extends upwards to form an annular protrusion, and the bottom of the sealing rubber gasket is attached to the annular protrusion.

Further, in order to better realize the sealing to the guide post top, the bottom of flotation pontoon is in the inboard downwardly extending of air vent forms a ring, a sealing washer is installed to the inboard detachably joint of ring, the top of guide post with the sealing washer cooperation forms airtightly.

Preferably, in order to enable the reaction force of the sealing position of the guide post and the sealing gasket to be smaller than the reaction force of the sealing rubber gasket and the sealing position of the annular bulge, the cross-sectional area of the gas channel is smaller than that of the drainage channel.

Furthermore, the lower part of the outer wall of the guide post radially extends to form an annular boss, a fixing groove communicated with the guide channel is formed in the outer wall of the sleeve below the annular boss, and a buckle used for interfering with the annular boss and driving the guide piece to move upwards when the buoy floats upwards is detachably mounted in the fixing groove.

Preferably, in order to prevent that the flotation pontoon from breaking away from the intake antrum, a plurality of draw-in groove has been seted up along circumference in the top of overflow base, the draw-in groove in install be used for right the flotation pontoon carries out the spacing snap ring of come-up.

Preferably, in order to better realize spacing to the snap ring, the draw-in groove include the first cell body of vertical setting and the horizontal second cell body that sets up, one side of second cell body with the bottom of first cell body links to each other, the snap ring include central ring body and set firmly in the central ring body outside and be used for the card to go into a plurality of branches in the second cell body.

Preferably, in order to better limit the snap ring, a limiting protrusion for radially limiting the snap ring is arranged at a position of the strut close to the tail end.

Preferably, in order to better limit the snap ring, a limit groove for the support rod to be clamped in when the snap ring floats is formed above the second groove body.

Preferably, in order to better realize the float bowl to float radially spacing, the inner wall of intake antrum is vertically laid a plurality of direction ribs along circumference.

The utility model discloses following beneficial effect has: an overflow assembly is provided which isolates the drain valve outlet from communication with the ambient air when the float is in a closed condition. When the drain valve drains water, external air cannot enter the drain port of the drain valve from the water inlet pipe, the drain port of the drain valve is almost in a full pipe water state, and the drain speed is greatly improved by a siphon effect when the drain valve drains water. When overflow occurs, the floating pontoon floats upwards and releases pressure firstly, so that the overflow device is not influenced by negative pressure of a pipeline and has good overflow effect. The toilet bowl utilizes the principle of negative pressure effect in the sealed pipeline to ensure that water in the injection pipeline is in a full state, increases the discharge speed of the valve during water discharge, and solves the problems of bubbling, high kinetic energy loss, poor replacement effect and the like during flushing of the toilet bowl. The utility model discloses an overflow subassembly small in size can isolated outside air and the overflow effect is good.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is an exploded view of the part of fig. 1.

Fig. 3 is a schematic view of the internal structure of fig. 1.

Fig. 4 is a schematic top view of fig. 1.

Fig. 5 is a schematic perspective view of the buoy.

Fig. 6 is a schematic perspective view of the overflow base.

Fig. 7 is a top view of fig. 6.

Fig. 8 is a perspective view of the guide.

Fig. 9 is a top view of fig. 8.

Fig. 10 is a schematic perspective view of the snap ring.

FIG. 11 is a schematic view of the buoy when closed.

FIG. 12 is a schematic representation of the float venting.

Fig. 13 is a schematic view of the overflow assembly when overflowing.

Fig. 14 is a schematic diagram of the overflow assembly of the present invention mounted on the drain valve.

Fig. 15 is a schematic diagram of the overflow assembly of the present invention mounted on the drain valve.

Fig. 16 is a third schematic diagram illustrating the principle of the overflow assembly of the present invention installed on the drain valve.

Fig. 17 is a schematic diagram of the overflow assembly of the present invention separately installed in the water tank.

Fig. 18 is a schematic diagram of the overflow assembly of the present invention separately installed in the water tank.

Fig. 19 is a third schematic diagram of the overflow assembly of the present invention separately installed in the water tank.

Description of the main component symbols: 1. an overflow base; 100. a guide rib; 101. a water inlet cavity; 102. a drainage channel; 103. an annular projection; 11. a card slot; 111. a first tank body; 112. a second tank body; 113. a limiting groove; 2. a float bowl; 20. a vent hole; 21. a sleeve; 210. a guide channel; 211. fixing grooves; 22. a circular ring; 3. a guide member; 30. a gas channel; 31. sealing the base; 311. a base plate; 312. a mounting head; 313. sealing the rubber gasket; 32. a guide post; 320. an annular boss; 4. buckling; 5. a snap ring; 50. a central ring body; 51. a strut; 52. a limiting bulge; 6. a sealing gasket; 7. a drain valve; 8. a water tank; s1: the cross-sectional area of the gas channel; s2: the cross-sectional area of the drainage channel.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

As shown in fig. 1-10, an overflow assembly comprises an overflow base 1, a pontoon 2 and a guide 3. The overflow base 1 is internally provided with a water inlet cavity 101 and a water drainage channel 102 which are distributed up and down and are communicated with each other. The flotation pontoon 2 is established in intake antrum 101 and can move about from top to bottom, and air vent 20 has been seted up at flotation pontoon 2 top, and the bottom of flotation pontoon 2 is in the outside vertical extension downwards of air vent 20 and is formed a sleeve 21, and 2 bottom surfaces of flotation pontoon are surpassed downwards to sleeve 21 bottom, and sleeve 21 is provided with the guide way 210 that link up along the axial. The guide piece 3 comprises a sealing base 31 and a guide column 32 vertically arranged at the top of the sealing base 31, the bottom of the sealing base 31 is matched with the top of the drainage channel 102 and blocks the drainage channel 102, the upper end of the guide column 32 extends into the guide channel 210 and is linked with the sleeve 21, and the top of the guide column 32 is matched with the bottom of the buoy 2 and blocks the vent hole 20. The bottom of flotation pontoon 2 is at the inboard downwardly extending formation ring 22 of air vent 20, and a sealing washer 6 is installed to the inboard detachably joint of ring 22, and sealing washer 6 bottom and ring 22 bottom are parallel and level mutually, and the top of guide post 32 forms airtightly with sealing washer 6 cooperation. The guide member 3 is provided with an air passage 30 along the axial direction for communicating the vent hole 20 with the drain passage 102 when the float 2 floats.

The sealing base 31 comprises a bottom plate 311, a supporting head 312 fixed below the bottom plate 311, and a sealing rubber pad 313 clamped between the bottom plate 311 and the supporting head 312, wherein the bottom of the sealing rubber pad 313 is matched with the top of the drainage channel 102 to form air tightness. Preferably, the top of the drainage channel 102 extends upward to form an annular protrusion 103, and the bottom of the sealing rubber pad 313 is attached to the annular protrusion 103.

The lower part of the outer wall of the guide post 32 extends along the radial direction to form an annular boss 320, the outer wall of the sleeve 21 is provided with a fixing groove 211 communicated with the guide channel 210 below the annular boss 320, and a buckle 4 which is used for interfering with the annular boss 320 and driving the guide member 3 to move upwards when the buoy 2 floats upwards is detachably installed in the fixing groove 211.

Preferably, a plurality of draw-in groove 11 has been seted up along circumference at the top of overflow base 1, installs in the draw-in groove 11 to be used for carrying out the spacing snap ring 5 of come-up to flotation 2. Preferably, the card slot 11 includes a first slot 111 vertically disposed and a second slot 112 horizontally disposed, and one side of the second slot 112 is connected to the bottom of the first slot 111. The snap ring 5 comprises a central ring body 50 and a plurality of struts 51 fixedly arranged on the outer side of the central ring body 50 and clamped in the second groove 112. Preferably, the strut 51 is provided with a limiting protrusion 52 for radially limiting the snap ring 5 at a position near the distal end. Preferably, a limit groove 113 for the rod 51 to be inserted when the snap ring 5 floats is formed above the second groove body 112.

Preferably, in order to better realize the floating radial limit of the buoy 2, a plurality of guide ribs 100 are vertically distributed on the inner wall of the water inlet cavity 101 along the circumferential direction.

Fig. 11-13 show the working principle of the overflow assembly of the present invention, and the overflow assembly isolates the drain valve 7 from the external air (fig. 11). The toilet utilizes the principle of negative pressure (P) effect in the sealed conduit to generate a force F in the opposite direction of the seal (313/6) of the overflow assembly. The reaction force F1 of the sealing part of the guide pillar 32 and the sealing gasket 6 is P S1, the reaction force F2 of the sealing rubber gasket 313 and the annular protrusion 103 is P S2, and since S1 is less than S2, F2 is greater than F1. When the water tank overflows, water overflows the overflow base 1 and flows into the water inlet cavity 101 of the overflow base 1, and when the water level in the water inlet cavity 101 rises and overflows the floating pontoon 2 for a certain height, the buoyancy of the floating pontoon 2 only needs to be larger than F1 and the self weight of the floating pontoon 2 to start floating (figure 12). The 2 come-up of flotation pontoon has destroyed the leakproofness of guide post 32 with the sealed department of seal ring 6, and outside air gets into the toilet bowl pipeline and leads to the negative pressure inefficacy, and the reaction force F2 that is used in sealed cushion 313 also inefficacy, and when flotation pontoon 2 come-up, buckle 4 interferes and drives whole guide 3 come-up with annular boss 320, opens drainage channel 102, reaches overflow effect (fig. 13). The sealing rubber pad 313 and the water inlet at the sealing position of the annular bulge 103 have no obstacle, the water passing area is increased, and the overflow effect is good.

Fig. 14-16 show a schematic view of the overflow assembly mounted on the drain valve 7. In the initial state, the float bowl 2 and the guide piece 3 are extruded under the action of gravity in cooperation with the rubber mat, the float bowl 2 and the guide piece 3 are in a sealed state, the guide piece 3 and the overflow base 1 are in a sealed state, and the water outlet of the drain valve 7 is isolated from being communicated with the outside air (as shown in fig. 14). When the water tank 8 overflows, water overflows the overflow base 1 and flows into the water inlet cavity 101 of the overflow base 1, the water level in the water inlet cavity 101 rises and overflows the floating pontoon 2 for a certain height, and the buoyancy of the floating pontoon 2 only needs to be larger than F1 and the self weight of the floating pontoon 2 to float. The float bowl 2 floats upwards to destroy the sealing performance at the sealing point of the float bowl 2 and the guide piece 3, and outside air enters the pipeline of the toilet bowl to cause the negative pressure failure of the pipeline (figure 15). When the water inlet valve does not stop water and continuously enters water, the reaction force F2 acting on the guide part 3 is also invalid, and the buoy 2 can smoothly pull the guide part 3 to float upwards to open the drainage channel 102, so that the overflow effect is achieved (figure 16).

Fig. 17-19 show a schematic view of the overflow assembly mounted to the tank 8. In an initial state, the buoy 2 and the guide piece 3 are extruded under the action of gravity in cooperation with the rubber mat, the buoy 2 and the guide piece 3 are in a sealed state, the guide piece 3 and the overflow base 1 are in a sealed state, and a water outlet of the drain valve 7 is isolated from being communicated with the outside air (as shown in fig. 17). When the water tank 8 overflows, water overflows the overflow base 1 and flows into the water inlet cavity 101 of the overflow base 1, the water level in the water inlet cavity 101 rises and overflows the floating pontoon 2 for a certain height, and the buoyancy of the floating pontoon 2 only needs to be larger than F1 and the self weight of the floating pontoon 2 to float. The float bowl 2 floats up to destroy the sealing performance at the sealing point of the float bowl 2 and the guide member 3, and outside air enters the toilet bowl pipeline to cause the negative pressure failure of the pipeline (figure 18). When the water inlet valve does not stop water and continuously enters water, the reaction force F2 acting on the guide part 3 is also invalid, and the buoy 2 can smoothly pull the guide part 3 to float upwards to open the drainage channel 102, so that the overflow effect is achieved (figure 19).

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 (10)

1. An overflow assembly, comprising: comprises an overflow base, a buoy and a guide piece, wherein a water inlet cavity and a water drainage channel which are distributed up and down and are communicated with each other are arranged inside the overflow base, the floating cylinder is arranged in the water inlet cavity and can move up and down, the top of the floating cylinder is provided with a vent hole, the bottom of the floating cylinder vertically extends downwards outside the vent hole to form a sleeve, the sleeve is provided with a through guide channel along the axial direction, the guide piece comprises a sealing base and a guide column vertically arranged at the top of the sealing base, the bottom of the sealing base is matched with the top of the drainage channel and blocks the drainage channel, the upper end of the guide column extends into the guide channel and is linked with the sleeve, the top of the guide column is matched with the bottom of the floating barrel and blocks the vent hole, and the guide piece is axially provided with a gas channel for communicating the vent hole with the drainage channel when the buoy floats upwards.

2. An overflow assembly as defined in claim 1, wherein: the sealing base comprises a bottom plate, a support head fixedly arranged below the bottom plate and a sealing rubber pad clamped between the bottom plate and the support head, wherein the bottom of the sealing rubber pad is matched with the top of the drainage channel to form airtightness.

3. An overflow assembly as defined in claim 2, wherein: the top of the drainage channel extends upwards to form an annular bulge, and the bottom of the sealing rubber pad is attached to the annular bulge.

4. An overflow assembly as defined in claim 2, wherein: the bottom of flotation pontoon is in the inboard downwardly extending of air vent forms a ring, a seal ring is installed to the inboard detachably joint of ring, the top of guide post with seal ring cooperation forms airtightly.

5. An overflow assembly as defined in claim 4, wherein: the cross-sectional area of the gas channel is smaller than the cross-sectional area of the water drainage channel.

6. An overflow assembly as defined in claim 1, wherein: the lower part of the outer wall of the guide post radially extends to form an annular boss, a fixing groove communicated with the guide channel is formed below the annular boss on the outer wall of the sleeve, and a buckle used for interfering with the annular boss and driving the guide piece to move upwards when the buoy floats upwards is detachably mounted in the fixing groove.

7. An overflow assembly as defined in claim 1, wherein: a plurality of draw-in groove has been seted up along circumference at the top of overflow base, the draw-in groove in install be used for right the flotation pontoon carries out the spacing snap ring of come-up.

8. An overflow assembly as defined in claim 7, wherein: the draw-in groove include the first cell body of vertical setting and the horizontal second cell body that sets up, one side of second cell body with the bottom of first cell body links to each other, the snap ring include central ring body and set firmly in the central ring body outside and be used for the card to go into a plurality of branches in the second cell body.

9. An overflow assembly as defined in claim 8, wherein: the position of the supporting rod close to the tail end is provided with a limiting bulge used for limiting the radial direction of the clamping ring, and a limiting groove used for clamping the supporting rod when the clamping ring floats is formed in the upper portion of the second groove body.

10. An overflow assembly as defined in any one of claims 1-9 wherein: the inner wall of the water inlet cavity is vertically provided with a plurality of guide ribs along the circumferential direction.

Images