Negative-pressure drip-proof device

Abstract

The utility model discloses a negative pressure drip-proof device, which relates to the technical field of bathroom accessories and comprises a ball head connecting component and a water outlet component, the water outlet component comprises a top cover and a water outlet panel, an inner frame and a water outlet sleeve are arranged between the top cover and the water outlet panel, a connecting sleeve is arranged on the top surface of the inner frame, a water passing channel is arranged in the connecting sleeve, and a ring piece is arranged in the water passing channel. A plurality of jet flow holes for water flow to pass through are formed in the middle of the ring piece, a guide cylinder is arranged on the bottom face of the ring piece, a one-way valve is arranged below the guide cylinder, the water outlet sleeve is located between the inner frame and the water outlet panel, a plurality of water outlet holes are formed in the water outlet panel, and a plurality of water guide sleeves penetrating out of the water outlet holes are correspondingly arranged on the bottom face of the water outlet sleeve in a protruding mode. Water guide holes are formed in the water guide sleeves, water sealing rings which deform along with water flow pressure are arranged at the tops of the water guide sleeves, and a plurality of sealing units abutting against the top faces of the water sealing rings are arranged on the bottom face of the inner frame in a protruding mode. According to the utility model, the spray head can be prevented from leaking, and the use experience of a user is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of bathroom technology, especially to a negative pressure anti-dripping device. BACKGROUND

[0002] The shower is a common bathroom equipment in modern bathroom, and is widely used in daily life such as showering and bathing. The traditional shower structure is generally composed of a water pipe connector, a spray head, a control valve, a support and a hose. The water flows into the shower spray head through the pipeline system, and the opening and closing and flow of the water flow are adjusted through the control valve to realize different water flow modes to meet the showering needs of users. With the continuous development of technology, the functions of the shower are gradually enriched, not only having ordinary water spraying function, but also having multiple intelligent functions such as adjusting water temperature, water pressure and spraying angle, which improves the comfort and experience of users.

[0003] However, after the water valve of the existing shower is closed, a part of water flow will still slowly flow out from the shower spray head, because the water pressure in the pipeline cannot completely disappear after the valve is closed, and part of the water still flows out through the spray head, thereby causing dripping, which not only produces noise, but also causes waste of water resources, and seriously affects the use experience of users.

[0004] Therefore, the present inventors have conducted in-depth research on the above problems, and thus the present case is produced. CONTENT OF THE UTILITY MODEL

[0005] The utility model provides a negative pressure anti-dripping device, which aims to solve the problem that the existing shower still has water flow after the water valve is closed.

[0006] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0007] The utility model provides a kind of negative pressure anti-dripping device, including ball head connection assembly for being connected with water pipe, the lower end of above-mentioned ball head connection assembly is screwed with water outlet assembly, above-mentioned water outlet assembly includes top cover and water outlet panel, inner frame and water outlet sleeve are equipped between above-mentioned top cover and above-mentioned water outlet panel, above-mentioned inner frame is buckled with above-mentioned water outlet panel and is formed with accommodating cavity, the top surface of above-mentioned inner frame is equipped with the connecting sleeve that passes out above-mentioned top cover, above-mentioned connecting sleeve includes expansion section, stop section and reducing section, the outer side wall of above-mentioned reducing section is equipped with the outer thread interface that is screwed with above-mentioned ball head connection assembly, the water passage for water flow is equipped in above-mentioned connecting sleeve, the ring piece is fixed in above-mentioned water passage, the middle part of above-mentioned ring piece is equipped with multiple jet flow holes for water flow, the bottom surface of above-mentioned ring piece is equipped with flow guide cylinder, the bottom of above-mentioned flow guide cylinder is equipped with one-way valve for the vacuumizing of above-mentioned accommodating cavity, above-mentioned water outlet sleeve is located between above-mentioned inner frame and above-mentioned water outlet panel, above-mentioned water outlet panel is equipped with several water outlet holes, the bottom surface of above-mentioned water outlet sleeve is correspondingly equipped with several water guide sleeves that pass out several above-mentioned water outlet holes, several above-mentioned water guide sleeves are equipped with water guide hole, and the top of several above-mentioned water guide sleeves is equipped with water sealing ring that deforms with water flow pressure, the bottom surface of above-mentioned inner frame is protruded with several sealing units that abut on the top surface of several above-mentioned water sealing rings.

[0008] Further, the sealing unit includes a sealing protrusion and positioning protrusions located around the sealing protrusion, and the diameter of the sealing protrusion is greater than the diameter of the water sealing ring.

[0009] Further, the one-way valve includes a valve body, an elastic member, and a valve core, and the valve body and the valve core compress the elastic member under water flow impact.

[0010] Further, the expansion section is provided with at least one air hole that opens or closes with the up-and-down movement of the valve body.

[0011] Further, the water guide sleeve includes an expansion section and a contraction section, the top of the water outlet hole is provided with an expansion groove for accommodating the expansion section, and the contraction section passes through the water outlet hole and extends outwardly to the water outlet panel.

[0012] Further, the top surface of the water outlet panel is protruded with an annular surrounding wall, the side wall of the annular surrounding wall is recessed with an annular clamping groove, and the bottom surface of the inner frame is protruded with multiple buckles for clamping into the annular clamping groove.

[0013] Further, the outer side wall of the stop section is protruded with multiple vertically arranged stop plates.

[0014] Further, the ball head connection assembly includes a ball head seat and a ball head arranged in the ball head seat, the ball head seat is provided with a first internal thread interface for screwing with the outer thread interface, and the interior of the ball head is provided with a through hole for water flow and a second internal thread interface for screwing with the water pipe.

[0015] As can be seen from the above description of the structure of this utility model, this utility model has the following advantages:

[0016] This invention features a ball-head connection assembly and a water outlet assembly. The water outlet assembly includes a top cover, a water outlet panel, an inner frame, and a water outlet sleeve. These components, when assembled, form a sealed structure. When the water valve is closed, a one-way valve within the water outlet assembly creates a vacuum in the cavity formed by the inner frame and the water outlet panel, effectively preventing residual water from leaking out of the water outlet. Simultaneously, a sealing ring on the water outlet sleeve, deforming with water pressure, automatically adjusts, blocking the water outlet when the pressure is low and opening it when the pressure increases. This further enhances the anti-drip effect, ensuring that users can effectively prevent water leakage after closing the water valve, reducing noise caused by residual water dripping, and significantly improving the user experience. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a three-dimensional assembly drawing of the present invention.

[0019] Figure 3 This is an exploded view of the ball joint connector assembly, top cover, and inner frame of this utility model.

[0020] Figure 4 This is a schematic diagram of the one-way valve of this utility model in its initial state.

[0021] Figure 5 for Figure 4 A magnified schematic diagram of the structure at point A in the middle.

[0022] Figure 6 This is a schematic diagram of the one-way valve of this utility model when subjected to water flow impact.

[0023] Figure 7 for Figure 6 Enlarged schematic diagram of the structure at point B.

[0024] Figure 8 This is a schematic diagram showing the disassembled state of the one-way valve of this utility model.

[0025] Figure 9 This is a front structural diagram of the inner frame of this utility model.

[0026] Figure 10 This is a schematic diagram of the reverse side structure of the inner frame of this utility model.

[0027] Figure 11 This is a schematic diagram of the structure of the water outlet sleeve of this utility model.

[0028] 10-ball head connecting assembly; 11-ball head seat; 111-first internal thread interface; 12-ball head; 121-through hole; 122-second internal thread interface; 13-gasket; 14-second O-shaped sealing ring; 15-C-shaped sealing ring; 20-water outlet assembly, 30-top cover; 31-connecting hole; 40-water outlet panel; 41-water outlet hole; 42-expanding groove; 43-annular surrounding wall; 44-annular clamping groove; 50-inner frame; 51-connecting sleeve; 511-diameter expanding section; 5111-air hole; 512-stop section; 5121-stop vertical plate; 513-diameter reducing section; 5131-external thread interface; 514-water passing channel; 515-ring piece; 5151-jet flow hole; 516-flow guide cylinder; 52-sealing protrusion; 53-positioning protrusion; 54-clasping buckle; 60-water outlet sleeve; 61-water guide sleeve; 611-expanding section; 612-contracting section; 62-water guide hole; 63-water sealing ring; 70-one-way valve; 71-valve body; 711-first sealing groove; 712-first Y-shaped sealing ring; 713-second sealing groove; 714-second Y-shaped sealing ring; 715-first elastic member; 72-valve core; 721-third sealing groove; 722-first O-shaped sealing ring; 723-second elastic member. DETAILED DESCRIPTION

[0029] The technical solutions of the present application will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments.

[0030] Reference Figures 1 to 10 A negative pressure anti-dripping device, comprising a ball head connecting assembly 10 for connecting with a water pipe (not shown in the figure), a water outlet assembly 20 is screwed at the lower end of the ball head connecting assembly 10, the water outlet assembly 20 comprises a top cover 30 and a water outlet panel 40, the middle part of the top cover 30 is provided with a connecting hole 31, and the inner frame 50 and the water outlet sleeve 60 are arranged between the top cover 30 and the water outlet panel 40, the inner frame 50 is clamped and matched with the water outlet panel 40 and forms a containing cavity, the top surface of the inner frame 50 is provided with a connecting sleeve 51 penetrating through the connecting hole 31 of the top cover 30, the connecting sleeve 51 comprises a diameter expanding section 511, a stop section 512 and a diameter reducing section 513, the outer side wall of the diameter reducing section 513 is provided with an external thread interface 5131 for screwing with the ball head connecting assembly 10, a water passing channel 514 for water flow is arranged in the connecting sleeve 51, a ring piece 515 is fixedly arranged in the water passing channel 514, a plurality of jet flow holes 5151 for water flow are arranged in the middle part of the ring piece 515, the plurality of jet flow holes 5151 are arranged in a ring shape on the ring piece 515, the bottom surface of the ring piece 515 is provided with a flow guide cylinder 516, the plurality of jet flow holes 5151 are located within the ring-shaped range formed by the flow guide cylinder 516, and a one-way valve 70 for vacuumizing the containing cavity is arranged below the flow guide cylinder 516.

[0031] The water outlet sleeve 60 is located between the inner frame 50 and the water outlet panel 40, the water outlet panel 40 is provided with a plurality of water outlet holes 41, the bottom surface of the water outlet sleeve 60 is correspondingly provided with a plurality of water guide sleeves 61 penetrating through the plurality of water outlet holes 41, the plurality of water guide sleeves 61 are provided with water guide holes 62, and the top of the plurality of water guide sleeves 61 is provided with a water sealing ring 63 capable of deforming with water flow pressure, in the embodiment, the water outlet sleeve 60 and / or the water sealing ring 63 are made of a deformable elastic material, such as rubber, and the bottom surface of the inner frame 50 is provided with a plurality of sealing units abutting against the top surface of the plurality of water sealing rings 63.

[0032] In application, the ball head connecting assembly 10 capable of being connected with the water pipe and the water outlet assembly 20 are arranged, the water outlet assembly 20 includes the top cover 30, the water outlet panel 40, the inner frame 50 and the water outlet sleeve 60, a closed structure is formed by the top cover 30, the water outlet panel 40, the inner frame 50 and the water outlet sleeve 60, after the water valve is closed, the one-way valve 70 can perform vacuumization on the accommodation cavity, effectively preventing residual water from flowing out of the water outlet hole 41. At the same time, the water sealing ring 63 capable of deforming with water flow pressure can automatically adjust, the water guide hole 62 is closed when the water flow pressure is low, and the water guide hole 62 is opened when the water flow pressure is increased, which further enhances the anti-dripping effect, ensures that the user can effectively avoid water dripping after the water valve is closed, reduces the noise problem caused by residual water dripping, and greatly improves the user experience. Figure 5 Figure 7 In application, the ball head connecting assembly 10 capable of being connected with the water pipe and the water outlet assembly 20 are arranged, the water outlet assembly 20 includes the top cover 30, the water outlet panel 40, the inner frame 50 and the water outlet sleeve 60, a closed structure is formed by the top cover 30, the water outlet panel 40, the inner frame 50 and the water outlet sleeve 60, after the water valve is closed, the one-way valve 70 can perform vacuumization on the accommodation cavity, effectively preventing residual water from flowing out of the water outlet hole 41. At the same time, the water sealing ring 63 capable of deforming with water flow pressure can automatically adjust, the water guide hole 62 is closed when the water flow pressure is low, and the water guide hole 62 is opened when the water flow pressure is increased, which further enhances the anti-dripping effect, ensures that the user can effectively avoid water dripping after the water valve is closed, reduces the noise problem caused by residual water dripping, and greatly improves the user experience.

[0033] In application, the ball head connecting assembly 10 capable of being connected with the water pipe and the water outlet assembly 20 are arranged, the water outlet assembly 20 includes the top cover 30, the water outlet panel 40, the inner frame 50 and the water outlet sleeve 60, a closed structure is formed by the top cover 30, the water outlet panel 40, the inner frame 50 and the water outlet sleeve 60, after the water valve is closed, the one-way valve 70 can perform vacuumization on the accommodation cavity, effectively preventing residual water from flowing out of the water outlet hole 41. At the same time, the water sealing ring 63 capable of deforming with water flow pressure can automatically adjust, the water guide hole 62 is closed when the water flow pressure is low, and the water guide hole 62 is opened when the water flow pressure is increased, which further enhances the anti-dripping effect, ensures that the user can effectively avoid water dripping after the water valve is closed, reduces the noise problem caused by residual water dripping, and greatly improves the user experience. Figures 1 to 10 In the embodiment, the sealing unit includes a sealing protrusion 52 and a positioning protrusion 53 located around the sealing protrusion 52, and the diameter of the sealing protrusion 52 is greater than the diameter of the water sealing ring 63, so that the sealing protrusion 52 can prevent water in the accommodation cavity from flowing out of the water guide hole 62 after the water valve is closed.

[0034] In the embodiment, the sealing unit includes a sealing protrusion 52 and a positioning protrusion 53 located around the sealing protrusion 52, and the diameter of the sealing protrusion 52 is greater than the diameter of the water sealing ring 63, so that the sealing protrusion 52 can prevent water in the accommodation cavity from flowing out of the water guide hole 62 after the water valve is closed. Figures 1 to 8 The one-way valve 70 includes a valve body 71, an elastic member and a valve core 72, the upper part and the lower part of the outer side wall of the valve body 71 are respectively provided with a first sealing groove 711 and a second sealing groove 713, the first sealing groove 711 and the second sealing groove 713 are provided with a first Y-shaped sealing ring 712 and a second Y-shaped sealing ring 714, the outer side wall of the valve core 72 is provided with a third sealing groove 721, and the third sealing groove 721 is provided with a first O-shaped sealing ring 722; the above-mentioned elastic member includes a first elastic member 715 arranged in the inside of the valve body 71 and a second elastic member 723 arranged in the inside of the valve core 72, two air holes 5111 that open or close with the up-down movement of the valve body 71 are arranged on the expansion section 511, in the embodiment, the first elastic member 715 and the second elastic member 723 are both springs, so that when the water valve is opened, the valve body 71 and the valve core 72 move downward under the impact of water flow, allowing water flow to enter the accommodation cavity, and when the water valve is closed, the valve body 71 and the valve core 72 move upward under the impact of water flow, preventing water flow from entering the accommodation cavity. Figure 6 ​, the water flow direction is shown by the arrow, when the water valve is closed, under the action of the spring restoring force, the valve body 71 and the valve core 72 reset, thereby vacuumizing the containing cavity, avoiding the residual moisture from flowing out of the water outlet hole, and by arranging multiple sealing rings, the sealing property of the check valve 70 is ensured.

[0035] With reference to Figures 1 to 11 , the water guide sleeve 61 comprises an expansion section 611 and a contraction section 612, the top of the water outlet hole 41 is provided with an expansion groove 42 for accommodating the expansion section 611, the contraction section 612 extends out of the water outlet hole 41 and extends to the outside of the water outlet panel 40, in the embodiment, the water guide hole 62 is in a tapered structure tapering from top to bottom, by such arrangement, not only the sealing property during water outlet can be ensured, but also the stability of water flow can be ensured.

[0036] With reference to Figures 1 to 9 , the top surface of the water outlet panel 40 is provided with an annular surrounding wall 43, the side wall of the annular surrounding wall 43 is concavely provided with an annular clamping groove 44, the bottom surface of the inner frame 50 is provided with multiple clamping buckles 54 for clamping into the annular clamping groove 44, in the embodiment, the number of the clamping buckles 54 is multiple, which are annularly distributed on the bottom surface of the inner frame 50, by the cooperation of the clamping buckles 54 and the annular clamping groove 44, the water outlet panel 40 can be stably connected with the inner frame 50. In addition, the outer side wall of the stop section 512 is provided with multiple vertically arranged stop vertical plates 5121, which can limit the connecting sleeve 51 to prevent excessive movement.

[0037] With reference to Figures 1 to 4 , the ball head connecting assembly 10 comprises a ball head seat 11 and a ball head 12 arranged in the ball head seat 11, the ball head seat 11 is provided with a first internal thread interface 111 for screwing with the external thread interface 5131, the ball head 12 is internally provided with a through hole 121 for water flow and a second internal thread interface 122 for screwing with the water pipe, in order to ensure the sealing property, a gasket 13, a second O-shaped sealing ring 14 and a C-shaped sealing ring 15 are sequentially arranged on the top of the ring piece 515, thereby forming multiple sealing layers, further improving the sealing effect of the connecting part, avoiding the water leakage.

[0038] The above is only the specific implementation manner of the present application, but the design concept of the present application is not limited to this, any non-essential change of the present application by using the concept should belong to the act of infringing the protection scope of the present application.

Claims

1. A negative pressure anti-dripping device, comprising a ball joint assembly for connecting with a water pipe, a lower end of the ball joint assembly being screwed with a water outlet assembly, characterized in that: The water outlet assembly comprises a top cover and a water outlet panel, an inner frame and a water outlet sleeve are arranged between the top cover and the water outlet panel, the inner frame is buckled with the water outlet panel and is formed with a receiving cavity, a connecting sleeve passing through the top cover is arranged on the top surface of the inner frame, the connecting sleeve comprises a diameter expansion section, a stop section and a diameter reduction section, an external thread interface for screwing with the ball head connecting assembly is arranged on the outer side wall of the diameter reduction section, a water passing channel for water flow is arranged in the connecting sleeve, a ring piece is fixedly arranged in the water passing channel, a plurality of jet flow holes for water flow are arranged in the middle part of the ring piece, a flow guide cylinder is arranged on the bottom surface of the ring piece, a one-way valve for vacuumizing the receiving cavity is arranged below the flow guide cylinder, the water outlet sleeve is arranged between the inner frame and the water outlet panel, a plurality of water outlet holes are arranged on the water outlet panel, a plurality of water guide sleeves passing through the plurality of water outlet holes are arranged on the bottom surface of the water outlet sleeve, a plurality of water guide holes are arranged in the plurality of water guide sleeves, and a water sealing ring deformed with water flow pressure is arranged on the top part of the plurality of water guide sleeves, a plurality of sealing units abutting against the top surfaces of the plurality of water sealing rings are arranged on the bottom surface of the inner frame.

2. The negative pressure drip chamber of claim 1, wherein: The sealing unit comprises a sealing protrusion and positioning protrusions arranged around the sealing protrusion, and the diameter of the sealing protrusion is greater than the diameter of the water sealing ring.

3. The negative pressure drip chamber of claim 1, wherein: The one-way valve comprises a valve body, an elastic member and a valve core, and the valve body and the valve core compress the elastic member under water flow impact.

4. The negative pressure drip chamber of claim 3, wherein: At least a gas hole is arranged on the diameter expansion section and is opened or closed with the up-down movement of the valve body.

5. The negative pressure drip chamber of any one of claims 1 to 4, wherein: The water guide sleeve comprises an expansion section and a contraction section, the top part of the water outlet hole is provided with an expansion groove for accommodating the expansion section, and the contraction section passes through the water outlet hole and extends to the outside of the water outlet panel.

6. The negative pressure drip chamber of any one of claims 1 to 4, wherein: The top surface of the water outlet panel is concavely provided with an annular surrounding wall, the side wall of the annular surrounding wall is convexly provided with an annular clamping groove, the bottom surface of the inner frame is convexly provided with a plurality of buckles clamped into the annular clamping groove.

7. The negative pressure drip chamber of any one of claims 1 to 4, wherein: The outer side wall of the stop section is convexly provided with a plurality of vertically arranged stop plates.

8. The negative pressure drip chamber of any one of claims 1 to 4, wherein: The ball head connecting assembly comprises a ball head seat and a ball head arranged in the ball head seat, a first internal thread interface for screwing with the external thread interface is arranged in the ball head seat, a through hole for water flow and a second internal thread interface for screwing with a water pipe are arranged in the interior of the ball head.

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