CN209743682U

CN209743682U - check valve for filter flask of water vending machine

Info

Publication number: CN209743682U
Application number: CN201920478950.3U
Authority: CN
Inventors: 孔凡军
Original assignee: HEFEI GEMEI ELECTRIC APPLIANCE CO Ltd
Current assignee: HEFEI GEMEI ELECTRIC APPLIANCE CO Ltd
Priority date: 2019-04-10
Filing date: 2019-04-10
Publication date: 2019-12-06
Anticipated expiration: 2029-04-10

Abstract

The utility model belongs to the technical field of valves, and discloses a check valve for filter flask of water vending machine, which comprises a drainage component and a check structure, wherein the drainage component comprises a circulation rod, a water outlet pipe and a screw rod, the screw rod is sleeved on the outer surface of the circulation rod and is in threaded connection with the circulation rod, when a medium flows in from the water inlet, the metal ball is pushed by the thrust of the medium to move downwards so as to drive the sealing plug at the bottom of the metal ball to move downwards, the pipe orifice connected with the circulation rod of the water outlet pipe is exposed, the medium is discharged through the water outlet pipe, when the water inlet is closed, the metal ball moves upwards under the magnetic action of the magnet to seal the water inlet, and simultaneously the sealing plug follows the metal ball to move upwards to seal the pipe orifice of the water outlet pipe, through the double sealing of the metal ball and the sealing plug, the problem of leakage of the check valve is avoided.

Description

Check valve for filter flask of water vending machine

Technical Field

The utility model belongs to the technical field of the valve, especially, relate to a sell check valve for water machine filter flask.

Background

The check valve is a valve whose opening and closing part is a circular valve clack and acts by self weight and medium pressure to block medium backflow, belonging to the automatic valve class, also called check valve, one-way valve, backflow valve or isolating valve, the valve clack motion mode is divided into lifting type and swing type, the lifting type check valve is similar to the structure of the stop valve, only lacks a valve rod for driving the valve clack, the medium flows in from the inlet end (lower side) and flows out from the outlet end (upper side). When the inlet pressure is greater than the sum of the weight of the valve clack and the flow resistance thereof, the valve is opened, otherwise, the valve is closed when the medium flows backwards, the swing check valve is provided with the valve clack which is obliquely arranged and can rotate around a shaft, the working principle is similar to that of a lifting check valve, the check valve is commonly used as a bottom valve of a water pumping device, the backflow of water can be prevented, the fixing valve and the stop valve are combined for use, the safety isolation effect can be achieved, and the defects are that the resistance is large and the sealing performance is poor when the check valve is.

The existing check valve is usually provided with a valve, when a medium circulates from the positive direction, the valve is driven to be opened through medium pressure, when the medium flows reversely, the valve cannot be pushed, the medium backflow is prevented, but the valve is easy to loosen after being repeatedly opened and closed, a gap is generated, the medium flows back through the gap easily, and the sealing performance is poor.

SUMMERY OF THE UTILITY MODEL

The utility model provides a sell check valve for water machine filter flask aims at solving current check valve and sets up a valve usually, when the medium circulates from the positive direction, drives the valve through medium pressure and opens, and during medium backward flow, unable propelling valve prevents the medium backward flow, nevertheless appears becoming flexible easily after the relapse switch in the valve, produces the gap, and the medium flows back through the gap easily, the relatively poor problem of sealing performance.

The utility model discloses a realize like this, a sell check valve for water machine filter flask, including drainage subassembly and non-return structure, the drainage subassembly includes circulation pole, outlet pipe and screw rod, the screw rod cover is established at the surface of circulation pole, and with the circulation pole spiro union, the outlet pipe is located the side of circulation pole, the outlet pipe runs through the circulation pole, and with circulation pole fixed connection, the circulation pole surface is equipped with the screw thread, and the top of circulation pole is seted up the water inlet; the non-return structure comprises a magnet, a rubber pad, a metal ball, a sealing plug and a connecting rod, wherein the magnet is located inside the circulation rod and fixedly connected with the circulation rod, the rubber pad is located on the outer surface of the metal ball, the rubber pad is bonded with the metal ball, the sealing plug is located at the bottom of the connecting rod, and the sealing plug is fixedly connected with the metal ball through the connecting rod.

Preferably, the circulation rod is cylindrical, the inside of the circulation rod is hollow, and a circular through hole is formed in the side surface of the circulation rod.

Preferably, the thread arranged on the circulation rod is divided into two sections, and the two sections of threads are respectively positioned at the upper end and the lower end of the circulation rod.

Preferably, the magnet is circular ring shaped, the top of the magnet is horizontal, the bottom of the magnet is inwards sunken to be circular arc shaped, and the sunken size is matched with the size of the rubber pad.

Preferably, the rubber pad is semicircular, the rubber pad is hollow, and the rubber pad is sleeved on the top of the metal ball.

Preferably, the metal ball is spherical, and the diameter of the metal ball is slightly smaller than the inner diameter of the bottom of the circulation rod and larger than the inner diameter of the top of the circulation rod.

Preferably, the sealing plug is of a cylindrical structure, and the size of the sealing plug is attached to the inner diameter of the bottom of the circulation rod and used for blocking the left end port of the water outlet pipe.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a check valve for water-selling machine filter flask, through setting up magnet, metal ball, sealing plug and the circulation pole, magnet sets up in the inside of circulation pole, the metal ball is located the bottom of magnet, and with circulation pole sliding connection, after the medium flowed in from the water inlet, through the thrust of medium promotion the metal ball moves down, thereby drive the sealing plug of metal ball bottom moves down, exposes the mouth of pipe that the outlet pipe is connected with the circulation pole, the medium passes through the outlet pipe discharges, after closing the water inlet, the metal ball moves up under the magnetic force of magnet, seals the water inlet, simultaneously the sealing plug follows the metal ball moves up will the mouth of pipe seals, through metal ball with the sealing plug double seal, the problem of leakage of the check valve is avoided.

Drawings

Fig. 1 is a schematic view of the internal structure of the present invention;

FIG. 2 is a schematic view of the structure of the circulation rod of the present invention;

FIG. 3 is a schematic view of the metal ball structure of the present invention;

In the figure: 1. a drainage assembly; 11. a flow-through lever; 12. a thread; 13. a water inlet; 14. a water outlet pipe; 15. A screw; 2. a non-return structure; 21. a magnet; 22. a rubber pad; 23. a metal ball; 24. a sealing plug; 25. A connecting rod.

Detailed Description

in order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

referring to fig. 1-3, the present invention provides a check valve for filter bottle of water vending machine, which comprises: a check valve for a filter bottle of a water vending machine comprises a drainage component 1 and a check structure 2, wherein the drainage component 1 comprises a circulation rod 11, a water outlet pipe 14 and a screw rod 15, the screw rod 15 is sleeved on the outer surface of the circulation rod 11 and is in threaded connection with the circulation rod 11, the water outlet pipe 14 is positioned on the side surface of the circulation rod 11, the water outlet pipe 14 penetrates through the circulation rod 11 and is fixedly connected with the circulation rod 11, threads 12 are arranged on the outer surface of the circulation rod 11, and a water inlet 13 is formed in the top of the circulation rod 11; non-return structure 2 includes magnet 21, rubber pad 22, metal ball 23, sealing plug 24 and connecting rod 25, and magnet 21 is located circulation pole 11 inside to with circulation pole 11 fixed connection, rubber pad 22 is located metal ball 23 surface, rubber pad 22 and metal ball 23 bonding, and sealing plug 24 is located the connecting rod 25 bottom, and sealing plug 24 passes through connecting rod 25 and metal ball 23 fixed connection.

In this embodiment, after the medium flows into the circulation rod 11 through the water inlet 13, the metal ball 23 is pushed by the pressure of the medium, so that the metal ball 23 is separated from the magnet 21, and the metal ball 23 is continuously pushed to move downward, the bottom of the metal ball is provided with the connecting rod 25 and is fixedly connected with the sealing plug 24 through the connecting rod 25, the sealing plug 24 is cylindrical, the size of the sealing plug 24 is the same as the size of the internal space of the circulation rod 11 and is slidably connected with the circulation rod 11, when the metal ball 23 moves downward, the sealing plug 24 is driven to move downward, so that the pipe orifice of the water outlet pipe 14 located on the side wall of the circulation rod 11 is exposed, the medium is discharged outward through the water outlet pipe 14, after the water inlet 13 is closed, due to the loss of the pressure of the top medium, the metal ball 23 moves upward under the magnetic force of the magnet 21 and is attached to the bottom of the magnet 21, the connecting rod 25 drives the sealing plug 24 to move upwards along the inside of the circulation rod 11, the water outlet of the water outlet pipe 14 is blocked again, medium backflow is avoided, the sealing plug 24 and the water outlet pipe 14 are placed perpendicularly, the diameter of the sealing plug 24 is equal to the inner diameter of the circulation rod 11, the backflow medium cannot push the sealing plug 24, on the other hand, the rubber pad 22 is further arranged at the top of the metal ball 23, the water inlet 13 is sealed through the rubber pad 22, and leakage of the check valve is avoided under the double sealing effect.

In this embodiment, when the device is used, the water inlet 13 is opened, a medium is introduced into the water inlet 13, when the medium flows into the circulation rod 11 through the water inlet 13, the metal ball 23 is pushed by the pressure of the medium, the metal ball 23 is separated from the magnet 21, and the metal ball 23 is continuously pushed to move downward, the bottom of the metal ball is provided with a connecting rod 25 and is fixedly connected with a sealing plug 24 through the connecting rod 25, the sealing plug 24 is cylindrical, the size of the sealing plug 24 is the same as the size of the internal space of the circulation rod 11 and is in sliding connection with the circulation rod 11, when the metal ball 23 moves downward, the sealing plug 24 is driven to move downward, so that the pipe orifice of the water outlet pipe 14 located on the side wall of the circulation rod 11 is exposed, the medium is discharged outward through the water outlet pipe 14, after the water inlet 13 is closed, the metal ball 23 moves upward under the magnetic force of the magnet 21 due, and the bottom of the magnet 21 is jointed, in the process that the metal ball 23 moves upwards, the connecting rod 25 drives the sealing plug 24 to move upwards along the interior of the flow rod 11, the water outlet of the water outlet pipe 14 is blocked again, the medium backflow is avoided, the outer surface of the flow rod 11 is provided with threads, the screw 15 is fixedly connected with the outer surface of the flow rod 11, the metal ball 23, the connecting rod 25 and the sealing plug 24 are limited in the flow rod through the magnet 21, the water outlet pipe 14 is fixedly connected with the flow rod 11, the check valve is of a single structure, the flow rod 11 can be screwed into the water vending machine through the screwing screw 15, the installation is simple and convenient, and a large amount.

Further, the circulation rod 11 is cylindrical, the inside of the circulation rod 11 is hollow, and a circular through hole is formed in the side surface of the circulation rod 11.

In this embodiment, the circulation rod 11 is configured to be connected to a water vending machine, the circulation rod 11 is hollow so as to accommodate the metal ball 23 and the sealing plug 24, and a circular through hole is formed in a side surface of the circulation rod 11 so as to be connected to the water blowing pipe 14.

Further, the thread 12 provided on the circulation rod 11 is divided into two sections, and the two sections of the thread 12 are respectively located at the upper and lower ends of the circulation rod 11.

In the embodiment, the upper end and the lower end of the flow rod 11 are both provided with the threads 12, so that the flow rod 11 and the water vending machine can be screwed conveniently, and the connection mode adopting the screwing mode is simple in installation, compact in structure, not easy to fall off and good in connection effect.

Further, magnet 21 is the ring shape, and the top of magnet 21 is the level form, and the bottom of magnet 21 inwards caves in and is circular-arc, and the size of this sunken size and the size looks adaptation of rubber pad 22.

In this embodiment, magnet 21 is arranged to adsorb metal ball 23 to form a second check valve, the bottom of magnet 21 is recessed inwards to form an arc shape, and the size of the recess is matched with the size of rubber pad 22, so that rubber pad 22 can be completely attached to magnet 21, and the sealing effect is better.

Further, the rubber pad 22 is semicircular, and the inside of the rubber pad 22 is hollow and is sleeved on the top of the metal ball 23.

In the present embodiment, the rubber pad 22 is formed in a semicircular shape, and the rubber pad 22 is hollow inside, so that the medium is prevented from flowing back through the water inlet 13 of the rubber pad 22.

Further, the metal ball 23 is spherical, and the diameter of the metal ball 23 is slightly smaller than the inner diameter of the bottom of the flow rod 11 and larger than the inner diameter of the top of the flow rod 11.

In this embodiment, the diameter of the metal ball 23 is slightly smaller than the inner diameter of the bottom of the flow rod 11 and larger than the inner diameter of the top of the flow rod 11, so that the metal ball 23 can only move in the inner space of the flow rod 11, and the structure of the check valve is more compact.

Further, the sealing plug 24 is a cylindrical structure, and the size of the sealing plug 24 is attached to the size of the inner diameter of the bottom of the circulation rod 11 and used for blocking the left end port of the water outlet pipe 14.

In this embodiment, the sealing plug 24 is arranged to seal the water outlet pipe 14, and the size of the sealing plug 24 is matched with the size of the inner diameter of the bottom of the circulation rod 11, so that the backflow medium cannot push the sealing plug 24, thereby improving the sealing effect of the check valve.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The check valve for the filter flask of the water vending machine is characterized by comprising a drainage component (1) and a check structure (2), wherein the drainage component (1) comprises a circulation rod (11), a water outlet pipe (14) and a screw rod (15), the screw rod (15) is sleeved on the outer surface of the circulation rod (11) and is in threaded connection with the circulation rod (11), the water outlet pipe (14) is positioned on the side surface of the circulation rod (11), the water outlet pipe (14) penetrates through the circulation rod (11) and is fixedly connected with the circulation rod (11), threads (12) are arranged on the outer surface of the circulation rod (11), and a water inlet (13) is formed in the top of the circulation rod (11);

Backstop structure (2) include magnet (21), rubber pad (22), metal ball (23), sealing plug (24) and connecting rod (25), magnet (21) are located inside circulation pole (11), and with circulation pole (11) fixed connection, rubber pad (22) are located metal ball (23) surface, rubber pad (22) with metal ball (23) bond, sealing plug (24) are located connecting rod (25) bottom, sealing plug (24) pass through connecting rod (25) with metal ball (23) fixed connection.

2. The check valve for filter flask of water vending machine according to claim 1, characterized in that the flow-through rod (11) is cylindrical, the inside of the flow-through rod (11) is hollow, and a circular through hole is opened on the side surface of the flow-through rod (11).

3. The check valve for filter flask of water vending machine according to claim 1, characterized in that the thread (12) provided on the flow-through rod (11) is divided into two sections, the two sections of the thread (12) being respectively located at the upper and lower ends of the flow-through rod (11).

4. The check valve for the filter flask of the water vending machine according to claim 1, wherein the magnet (21) is circular, the top of the magnet (21) is horizontal, the bottom of the magnet (21) is concave inwards to form an arc, and the size of the concave is matched with the size of the rubber pad (22).

5. The check valve for filter flask of water vending machine as recited in claim 1, wherein the rubber pad (22) is semicircular, and the rubber pad (22) is hollow and is fitted over the top of the metal ball (23).

6. The non-return valve for filter flasks of water vending machines according to claim 1, characterized in that the metal ball (23) is spherical, the diameter of the metal ball (23) being slightly smaller than the internal diameter of the bottom of the flow-through rod (11) and larger than the internal diameter of the top of the flow-through rod (11).

7. the check valve for filter bottles of water vending machines as recited in claim 1, wherein the sealing plug (24) is of a cylindrical structure, and the size of the sealing plug (24) is matched with the size of the inner diameter of the bottom of the circulation rod (11) and used for blocking the left end port of the water outlet pipe (14).