Liquid level induction one-way valve

Abstract

The utility model provides a liquid level induction one-way valve, and belongs to the technical field of valve manufacturing. The floating ball valve solves the problem that an existing floating ball valve is not easy to maintain. The liquid level induction one-way valve comprises a valve body, an induction chamber and a top cover, a lower diaphragm separating the induction chamber from the valve body is clamped between the induction chamber and the valve body, an upper diaphragm separating the top cover from the induction chamber is clamped between the top cover and the induction chamber, and the induction chamber is provided with a connecting structure communicated with an inner cavity of the induction chamber and used for being connected with a water pipe communicated with a water storage tank. A pin is fixedly connected to the middle of the upper diaphragm, a first spring is arranged between the upper diaphragm and the top cover, an axially-through connecting seat is fixedly connected to the middle of the lower diaphragm, the pin is axially inserted into the connecting seat, a limiting sleeve arranged on the outer side of the connecting seat in a sleeving mode is arranged in the induction chamber, a downward step is arranged on the inner wall of the limiting sleeve, and a steel ball is embedded in the connecting seat in the radial direction. The outer wall of the pin is provided with a groove for the steel ball to be clamped in, and the connecting base is connected with a water stopper located in the valve body. The device has the advantages of being convenient to assemble, disassemble and maintain, good in use safety and the like.

Description

TECHNICAL FIELD

[0001] The utility model belongs to valve manufacturing technical field relates to a one-way valve, especially in a kind of liquid level induced one-way valve. BACKGROUND

[0002] At present, in order to use water conveniently, user will basically install water storage tank, and float ball valve will be arranged in water storage tank. The float of float ball valve always floats on the water surface of water storage tank, when water surface rises, float also follows to rise and fall, float rises and drives connecting rod to rise, connecting rod is connected with valve at the other end, when rising to certain position, connecting rod drives valve to close, and closes water inlet, when water level in water storage tank drops, float drives connecting rod to drop, so that valve is re-opened, so that float ball valve controls liquid level to control the liquid supply of water storage tank.

[0003] In use, when float ball valve fails, water storage tank needs to be opened manually for maintenance, however, water storage tank is generally installed on roof, and the operation of maintaining float ball valve is time-consuming and laborious, and safety is not ideal. SUMMARY

[0004] The utility model aims at the above-mentioned problems existing in prior art, provide a kind of liquid level induced one-way valve that can control liquid level and is easy to maintain.

[0005] The utility model discloses a liquid level induction check valve, including valve body, induction chamber and top cap, its characterized in that, the valve body axial penetration and the bottom of valve body is the flow through end, and the side of valve body has the connecting end that is communicated in the inner chamber of valve body, the induction chamber axial penetration and the induction chamber is located between the top of valve body and the bottom of top cap, and the lower diaphragm that is separated between induction chamber and valve body clamps two, the top cap and induction chamber between clamping the upper diaphragm that is separated between two, the induction chamber has the connecting structure that is communicated with its inner chamber and is used for connecting the water pipe that communicates with the water storage tank, the middle part of upper diaphragm is fixedly connected with the pin, and spring one is equipped between upper diaphragm and top cap, the middle part of lower diaphragm is fixedly connected with the axial penetration connecting seat, the pin is axially inserted into connecting seat, the limiting sleeve that is sleeved in the outer side of connecting seat is in the induction chamber, the inner wall of limiting sleeve has the downward step, the connecting seat is radially embedded with steel ball, the outer wall of pin has the recess for steel ball and is inserted, the water stopper in valve body is connected with connecting seat, the water stopper includes outer ring and inner ring, and the outer ring and inner ring are connected through a plurality of circumferentially distributed connecting beams, each connecting beam has the through hole that is radially penetrated, the inner wall of valve body has the radial recess that is radially recessed and is communicated with connecting end, the outer wall of outer ring is attached to the inner wall of valve body and is radially recessed, and the radial recess is arranged around the outer ring, and the groove width of radial recess is less than the axial height of outer ring, the inner ring has the radial slot that is radially penetrated and is located between connecting beams, one-way check structure one between inner ring and connecting seat is equipped, and prevents water from flowing in the radial slot to connecting seat, the side wall close to the bottom of inner ring has a plurality of radial ports that are radially penetrated, the inner ring is equipped with two-way check structure two, and prevents water from flowing from through hole to radial port, the valve body is provided with the sealing element that is in contact with inner ring, and the inner wall of valve body has the radially inward protruding shoulder, the spring two in valve body is provided with the elastic force for the sealing element to keep sealing in the shoulder tendency, and the elastic force of spring one is greater than the elastic force of spring two.

[0006] In the above-mentioned liquid level induction check valve, the connecting structure includes a connecting hole one of the induction chamber, a connecting hole two of the top of the top cap, and a connecting hole three of the top cap connecting the connecting hole one and the connecting hole two.

[0007] In the above-mentioned liquid level induction check valve, the one-way check structure one includes a sealing seat fixed between the connecting seat and the top of the inner ring, the sealing seat is axially penetrated, and the inner wall of the sealing seat is embedded with a sealing ring, the inner wall of the inner ring has a separation layer separating the inner ring into an upper layer and a lower layer, the radial slot is communicated with the upper layer, the through hole is communicated with the lower layer, and a floating ball is arranged in the upper layer.

[0008] In the liquid level induced one-way valve, the one-way check structure II comprises a spring III and a plug, the bottom of the inner ring is provided with a check seat engaged with the inner ring, the inner wall of the check seat is provided with a blocking ring of the radial inner ring, the spring III and the plug are located in the lower layer, the lower end of the plug is provided with a radial outward convex blocking end, the outer wall of the blocking end is provided with a tapered surface, the upper end of the spring III abuts against the separation layer, the lower end of the spring III is inserted into the plug and abuts against the blocking end, and the spring III has a spring force to make the tapered surface of the blocking end always have a tendency to seal the blocking ring.

[0009] In the liquid level induced one-way valve, the sealing member comprises a rod-shaped body, the body is provided with a radial outward convex convex ring, the top surface of the convex ring is embedded with a rubber ring for sealing the blocking shoulder, the top of the body is inserted into the check seat, the plug is provided with a blind hole for inserting the top of the body, the bottom of the valve body is threadedly connected with a locking sleeve, the inner wall of the locking sleeve is provided with a connecting plate, the body passes through the connecting plate, the upper end of the spring II abuts against the bottom surface of the convex ring, and the lower end of the spring II abuts against the connecting plate.

[0010] In the liquid level induced one-way valve, the pin is embedded with a sealing ring near the outer wall of the bottom thereof, the inner wall of the connecting seat is provided with a radial inward convex convex ring for abutting against the sealing ring, and the connecting seat is radially penetrated with a water passing groove located at the upper part of the convex ring.

[0011] In the liquid level induced one-way valve, the edge of the top cover is provided with a plurality of screws, each screw passes through the edge of the induction chamber and is threadedly connected with the valve body.

[0012] Compared with the prior art, the liquid level induced one-way valve can be conveniently installed at the wall of the bottom floor of a building, can control the liquid level of a water storage tank, has good working stability, is convenient to maintain, and has good safety in use. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a perspective view of the liquid level induced one-way valve.

[0014] Figure 2 is a structural sectional view of the liquid level induced one-way valve.

[0015] Figure 3 is a partial structural view of the liquid level induced one-way valve.

[0016] Figure 4 is a perspective view of the induction chamber in the liquid level induced one-way valve.

[0017] Figure 5 is a perspective view of the water blocking device in the liquid level induced one-way valve.

[0018] In the figure, 1, valve body; 2, induction chamber; 3, top cover; 4, connecting end; 5, lower diaphragm; 6, upper diaphragm; 7, pin; 8, spring one; 9, connecting seat; 10, limiting sleeve; 11, steel ball; 12, water stop; 121, outer ring; 122, inner ring; 123, connecting beam; 124, through hole; 13, radial groove; 14, radial notch; 15, radial port; 16, sealing element; 161, body; 162, convex ring; 163, rubber ring; 17, stop shoulder; 18, spring two; 19, connecting hole one; 20, connecting hole two; 21, connecting hole three; 22, sealing seat; 23, sealing ring; 24, separation layer; 25, floating ball; 26, spring three; 27, plug; 271, plugging end; 28, check seat; 281, retaining ring; 29, locking sleeve; 291, connecting plate; 30, sealing ring; 31, convex ring; 32, water passage; 33, screw. DETAILED DESCRIPTION

[0019] The following is a specific embodiment of the present application and further describes the technical solution of the present application in combination with the accompanying drawings, but the present application is not limited to these embodiments.

[0020] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the liquid level inducing check valve comprises a valve body 1, an inducing chamber 2 and a top cover 3, the valve body 1 is axially through and the bottom of the valve body 1 is a flow-through end, the side of the valve body 1 has a connecting end 4 communicating with the inner cavity of the valve body 1, the inducing chamber 2 is axially through and is located between the top of the valve body 1 and the bottom of the top cover 3, the inducing chamber 2 and the valve body 1 are clamped with a lower diaphragm 5 separating them, the top cover 3 and the inducing chamber 2 are clamped with an upper diaphragm 6 separating them, the inducing chamber 2 has a connecting structure communicating with its inner cavity and used for connecting a water pipe communicating with a water storage tank, the middle of the upper diaphragm 6 is fixedly connected with a pin 7, a spring 8 is arranged between the upper diaphragm 6 and the top cover 3, the middle of the lower diaphragm 5 is fixedly connected with an axially through connecting seat 9, the pin 7 is axially inserted into the connecting seat 9, the inducing chamber 2 has a limiting sleeve 10 sleeved outside the connecting seat 9, the inner wall of the limiting sleeve 10 has a downward step, the connecting seat 9 is radially embedded with a steel ball 11, the outer wall of the pin 7 has a groove for the steel ball 11 to be clamped into, the connecting seat 9 is connected with a water stopper 12 located in the valve body 1, the water stopper 12 comprises an outer ring 121 and an inner ring 122, the top of the outer ring 121 has axially extended and circumferentially distributed guide blocks, the guide blocks are used for abutting the inner wall of the valve body 1, so that the outer ring 12 ascends and descends smoothly, the outer ring 121 and the inner ring 122 are connected through three circumferentially distributed connecting beams 123, each connecting beam 123 has a through hole 124 radially through, the inner wall of the valve body 1 has a radial groove 13 radially recessed and communicating with the connecting end 4, the outer wall of the outer ring 121 abuts the inner wall of the valve body 1 and the radial groove 13 is arranged around the outer ring 121, the groove width of the radial groove 13 is smaller than the axial height of the outer ring 121, the inner ring 122 has a radial notch 14 radially through and located between the connecting beams 123, a one-way check structure one is arranged between the inner ring 122 and the connecting seat 9 to prevent water from flowing from the radial notch 14 to the connecting seat 9, the side wall of the inner ring 122 close to the bottom has two radial ports 15 radially through, the inner ring 122 is provided with a one-way check structure two to prevent water from flowing from the through hole 124 to the radial port 15, the valve body 1 is provided with a sealing element 16 abutting the inner ring 122, the inner wall of the valve body 1 has a radially inward protruding shoulder 17, the valve body 1 is internally provided with a spring 18 providing a spring force to the sealing element 16 to keep it sealingly abutting the shoulder 17, the spring force of the spring 8 is greater than the spring force of the spring 18.

[0021] In use, the connecting end 4 is connected with the water storage tank through the water pipe, the bottom of the valve body 1 is connected with the water inlet and outlet main pipe, and the connecting structure is used for connecting the water pipe communicating with the water storage tank (the water pipe is vertically arranged and the top of the water pipe is the set liquid level of the water storage tank), so that the liquid level inducing check valve is externally arranged on the water storage tank and can be conveniently installed on the wall of the bottom floor of a building, so that when the liquid level inducing check valve has a problem, the maintenance is convenient and the safety is good.

[0022] Before the liquid level induced check valve is installed, the elastic force of spring one 8 is greater than the elastic force of spring two 18, so the sealing element 16 is away from the shoulder 17, and the sealing element 16 and the shoulder 17 have a water inlet spacing. After the liquid level induced check valve is installed, the first time it is used, water enters from the bottom of the valve body 1 and enters the water stop 12 between the sealing element 16 and the shoulder 17, the water between the outer ring 121 and the inner ring 122 acts on the lower diaphragm 5, the lower diaphragm 5 drives the connecting seat 9 and the water stop 12 to lift together until the steel ball 11 abuts against the step, at this time the connecting seat 9 and the water stop 12 are axially limited, the outer ring 121 closes the radial groove 13, the one-way check structure one prevents water from flowing from the radial notch 14 to the connecting seat 9, and the water at the water stop 12 can only enter the radial notch 14 through the radial port 15, the one-way check structure two, and then flow out from the connecting end 4, thereby entering the water storage tank to store water; when the liquid level of the water storage tank reaches the set liquid level, water flows through the water pipe, the connecting structure and enters the induction chamber 2, the water in the induction chamber 2 acts on the upper diaphragm 6, so that the upper diaphragm 6 drives the pin 7 to rise, the steel ball 11 is clamped into the groove of the pin 7, the pin 7 continues to rise, the steel ball 11 drives the connecting seat 9, the lower diaphragm 5 and the water stop 12 to rise together, and the outer ring 121 always closes the radial groove 13 until the sealing element 16 is sealed to the shoulder 17, at this time the bottom of the valve body 1 no longer enters water; when the bottom of the valve body 1 discharges water, the water in the induction chamber 2 first enters the connecting seat 9, and then flows to the space between the outer ring 121 and the inner ring 122 through the one-way check structure one and the radial notch 14, and drives the sealing element 16 away from the shoulder 17, so that the water in the induction chamber 2 is discharged first, that is, the water in the water pipe connected with the induction chamber 2 is emptied first, avoiding the retention of dirt, and ensuring the stability of the work of the upper diaphragm 6 and the lower diaphragm 5, and then the elastic force of the spring one 8 drives the upper diaphragm 6 to drive the pin 7 to move downward, the steel ball 11 is embedded into the connecting seat 9, the pin 7 drives the connecting seat 9, the water stop 12 and the sealing element 16 to move downward together until the outer ring 121 does not close the radial groove 13, the water in the water storage tank flows from the connecting end 4, the radial groove 13 to the space between the outer ring 121 and the inner ring 122, and then flows out from the space between the shoulder 17 and the sealing element 16, the one-way check structure two prevents water from flowing from the through hole 124 to the radial port 15 in the above process; in this way, the liquid level induced check valve completes the water inlet and outlet work, can control the liquid level of the water storage tank, and has good stability.

[0023] Further, the connecting structure includes the connecting hole one 19 of the induction chamber 2 which communicates with the inside of the induction chamber 2, the connecting hole two 20 of the top of the top cover 3, and the connecting hole three 21 of the top cover 3 which connects the connecting hole one 19 and the connecting hole two 20 and is obliquely arranged. The connecting hole two 20 is used to be connected with the water pipe, and in actual manufacture, the connecting hole two 20 is an internal thread hole; water enters the induction chamber 2 through the connecting hole two 20, the connecting hole three 21 and the connecting hole one 19.

[0024] The one-way check structure one includes a sealing seat 22 fixed between the connecting seat 9 and the top of the inner ring 122, the sealing seat 22 is axially through, and the inner wall of the sealing seat 22 is embedded with a sealing ring 23, the inner wall of the inner ring 122 has a separation layer 24 separating the inner ring 122 into an upper layer and a lower layer, the radial notch 14 is communicated with the upper layer, and the through hole 124 is communicated with the lower layer, and the upper layer is provided with a floating ball 25. The water entering from the radial notch 14 will make the floating ball 25 seal to the sealing ring 23, so as to avoid the water flowing into the connecting seat 9, and the one-way check function is realized; in actual manufacture, the sealing seat 22 is fitted on the outside of the bottom of the connecting seat 9 protruding from the bottom of the lower diaphragm 5, the inner ring 122 is fitted on the outside of the sealing seat 22, and the top of the inner ring 122 is buckled to the annular groove on the outer wall of the sealing seat 22 through the inwardly folded flange, so that the assembly is convenient.

[0025] The one-way check structure two includes a spring three 26 and a plug 27, the bottom of the inner ring 122 has a check seat 28 buckled thereto, the inner wall of the check seat 28 has a blocking ring 281 radially blocking the inner ring 122, the spring three 26 and the plug 27 are both located in the lower layer, the lower end of the plug 27 has a radially outwardly protruding blocking end 271, the outer wall of the blocking end 271 has a taper surface, the upper end of the spring three 26 abuts against the separation layer 24, the lower end of the spring three 26 is inserted into the plug 27 and abuts against the blocking end 271, and the spring force of the spring three 26 always has a tendency of sealing the taper surface of the blocking end 271 to the blocking ring 281.

[0026] The sealing element 16 includes a rod-shaped body 161, the body 161 has a radially outwardly protruding convex ring 162, the top surface of the convex ring 162 is embedded with a rubber ring 163 for sealing the stop shoulder 17, the top of the body 161 is inserted into the check seat 28, the plug 27 has a blind hole for the top of the body 161 to be inserted into, the bottom of the valve body 1 is threadedly connected with a locking sleeve 29, the inner wall of the locking sleeve 29 has a connecting plate 291, the body 161 passes through the connecting plate 291, the upper end of the spring two 18 abuts against the bottom surface of the convex ring 162, and the lower end of the spring two 18 abuts against the connecting plate 291. The spring two 18 provides a spring force so that the convex ring 162 always has a tendency of abutting against the bottom of the check seat 28, the body 161 plays a guiding role on the plug 27, and the working stability is improved.

[0027] The outer wall of the pin 7 close to the bottom is embedded with a sealing ring 30, the inner wall of the connecting seat 9 has a convex ring 31 radially protruding and abutting against the sealing ring 30, and the connecting seat 9 is radially through with a water passing groove 32 located at the upper part of the convex ring 31. The water passing groove 32 facilitates the water to be communicated with the connecting seat 9, when the sealing ring 30 abuts against the convex ring 31, the water in the inner ring 122 cannot enter the induction chamber 2, the sealing ring 30 plays a sealing role, prevents air from entering the induction chamber 2, and avoids bubbles from blocking the water flow.

[0028] The edge of the top cover 3 is provided with a plurality of screws 33, each of which passes through the edge of the induction chamber 2 and is threadedly connected with the valve body 1. In this way, the top cover 3, the induction chamber 2 and the valve body 1 are convenient to assemble and disassemble. In the embodiment, the number of the screws 33 is four and they are distributed at the four corners of the top cover 3.

[0029] The contents not described in detail in the specification belong to the prior art known to those skilled in the art. The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

Claims

1. A level induced one-way valve comprising a valve body (1), an induction chamber (2) and a top cover (3), characterized in that, The valve body (1) is axially penetrated, the bottom of the valve body (1) is a flow-through end, the side of the valve body (1) has a connecting end (4) connected to the inner cavity of the valve body (1), the inducing chamber (2) is axially penetrated and is located between the top of the valve body (1) and the bottom of the top cover (3), the inducing chamber (2) and the valve body (1) are clamped with a lower diaphragm (5) separating them, the top cover (3) and the inducing chamber (2) are clamped with an upper diaphragm (6) separating them, the inducing chamber (2) has a connecting structure connected to the inner cavity thereof and used for connecting a water pipe connected with a water storage tank, the middle of the upper diaphragm (6) is fixedly connected with a pin (7), a spring (8) is arranged between the upper diaphragm (6) and the top cover (3), the middle of the lower diaphragm (5) is fixedly connected with an axially penetrated connecting seat (9), the pin (7) is axially inserted into the connecting seat (9), the inducing chamber (2) has a limiting sleeve (10) sleeved outside the connecting seat (9), the inner wall of the limiting sleeve (10) has a downward step, the connecting seat (9) is radially embedded with a steel ball (11), the outer wall of the pin (7) has a groove for the steel ball (11) to be clamped into, the connecting seat (9) is connected with a water blocking device (12) located in the valve body (1), the water blocking device (12) comprises an outer ring (121) and an inner ring (122), the outer ring (121) and the inner ring (122) are connected through a plurality of circumferentially distributed connecting beams (123), each connecting beam (123) has a through hole (124) penetrating in the radial direction, the inner wall of the valve body (1) has a radial recess (13) radially recessed and connected to the connecting end (4), the outer wall of the outer ring (121) is attached to the inner wall of the valve body (1) and the radial recess (13) is arranged around the outer ring (121), the groove width of the radial recess (13) is smaller than the axial height of the outer ring (121), the inner ring (122) has a radial notch (14) located between the connecting beams (123) and penetrating in the radial direction, a one-way check structure one is arranged between the inner ring (122) and the connecting seat (9) to prevent water from flowing from the radial notch (14) into the connecting seat (9), the side wall of the inner ring (122) close to the bottom has a plurality of radial ports (15) penetrating in the radial direction, the inner ring (122) is provided with a one-way check structure two to prevent water from flowing from the through hole (124) to the radial port (15), the valve body (1) is provided with a sealing element (16) abutting against the inner ring (122), the inner wall of the valve body (1) has a radially inwardly protruding shoulder (17), the valve body (1) is internally provided with a spring (18) providing a spring force to the sealing element (16) to keep the sealing element (16) sealingly abutting against the shoulder (17), the spring force of the spring (8) is greater than the spring force of the spring (18).

2. The liquid level induced one-way valve of claim 1, wherein, The connecting structure comprises that the inducing chamber (2) has a connecting hole one (19) connected to the inner part thereof, the top of the top cover (3) has a connecting hole two (20), and the top cover (3) has a connecting hole three (21) connecting the connecting hole one (19) and the connecting hole two (20) and being arranged in an inclined manner.

3. The liquid level induced one-way valve according to claim 1 or 2, characterized in that The one-way check structure one includes a sealing seat (22) fixed between the connecting seat (9) and the top of the inner ring (122), the sealing seat (22) is axially penetrated, and the inner wall of the sealing seat (22) is embedded with a sealing ring (23); the inner wall of the inner ring (122) has a separation layer (24) separating the inner ring (122) into an upper layer and a lower layer, the radial notch (14) is communicated with the upper layer, and the through hole (124) is communicated with the lower layer; the upper layer is provided with a floating ball (25).

4. The liquid level induced one-way valve of claim 3, wherein, The one-way check structure two includes a spring three (26) and a plug (27), the bottom of the inner ring (122) has a check seat (28) buckled therewith, the inner wall of the check seat (28) has a blocking ring (281) of the radial inner ring (122), the spring three (26) and the plug (27) are both located in the lower layer, the lower end of the plug (27) has a radially outwardly protruding blocking end (271), the outer wall of the blocking end (271) has a tapered surface, the upper end of the spring three (26) abuts against the separation layer (24), the lower end of the spring three (26) is inserted with the plug (27) and abuts against the blocking end (271), and the elastic force of the spring three (26) makes the tapered surface of the blocking end (271) always have a tendency to be sealed to the blocking ring (281).

5. The liquid level induced one-way valve of claim 4, wherein, The sealing element (16) includes a rod-shaped body (161), the body (161) has a radially outwardly protruding convex ring (162), the top surface of the convex ring (162) is embedded with a rubber ring (163) for sealing against the stop shoulder (17), the top of the body (161) is inserted into the check seat (28), the plug (27) has a blind hole for the top of the body (161) to be inserted into, the bottom of the valve body (1) is threadedly connected with a locking sleeve (29), the inner wall of the locking sleeve (29) has a connecting plate (291), the body (161) passes through the connecting plate (291), the upper end of the spring two (18) abuts against the bottom surface of the convex ring (162), and the lower end of the spring two (18) abuts against the connecting plate (291).

6. The liquid level induced one-way valve of claim 5, wherein, The outer wall of the pin (7) close to the bottom thereof is embedded with a sealing ring (30), the inner wall of the connecting seat (9) has a radially inwardly protruding convex ring (31) for the sealing ring (30) to abut against, and the connecting seat (9) is radially penetrated with a water passing groove (32) located at the upper portion of the convex ring (31).

7. The liquid level induced one-way valve of claim 6, wherein, The edge of the top cover (3) is provided with a plurality of screws (33), each screw (33) passes through the edge of the induction chamber (2) and is threadedly connected with the valve body (1).

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