CN215980978U

CN215980978U - Self-adjusting check valve and gas water heater comprising same

Info

Publication number: CN215980978U
Application number: CN202122080261.7U
Authority: CN
Inventors: 段裘铭; 王启栋; 梁稳
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-03-08
Anticipated expiration: 2031-08-31

Abstract

The utility model discloses a self-adjusting one-way valve and a gas water heater comprising the same, wherein the self-adjusting one-way valve comprises a valve seat and an adjusting rod arranged on the valve seat in a penetrating way, the adjusting rod can rotate around the axis of the adjusting rod, and the self-adjusting one-way valve also comprises: the first limiting part is arranged on the valve seat, the end part of the first limiting part is abutted to the adjusting rod, and friction force is added to the adjusting rod, so that the first limiting part limits the rotation of the adjusting rod. The valve seat is provided with the first limiting part for limiting the rotation of the adjusting rod, the end part of the first limiting part is abutted against the adjusting rod to increase the friction force with the adjusting rod, the adjusting rod is effectively prevented from rotating automatically under the driving of water flow or air flow, the valve body is always kept in a stable state, and the waste of water resources is reduced.

Description

Self-adjusting check valve and gas water heater comprising same

Technical Field

The utility model relates to the technical field of water heating equipment, in particular to a self-adjusting one-way valve and a gas water heater comprising the same.

Background

The valve body comprises a valve seat, an adjusting rod and a valve core. The valve core is arranged in the valve seat, the adjusting rod is arranged on one side of the valve core and is rotatably connected with the valve seat, and the adjusting rod is rotated to adjust the water outlet flow of the valve body. At present, after the adjusting rod is adjusted to a proper angle, the phenomenon that the adjusting rod is driven to rotate slowly due to water flow impact can occur, so that water flow controlled by the valve body is gradually increased or reduced, and the use of a user is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defect that an adjusting rod in the prior art can rotate gradually under the impact of water flow, and provides a self-adjusting one-way valve and a gas water heater comprising the same.

The utility model solves the technical problems through the following technical scheme:

a self-adjusting one-way valve comprises a valve seat and an adjusting rod arranged on the valve seat in a penetrating mode, wherein the adjusting rod can rotate around the axis of the adjusting rod, and the self-adjusting one-way valve further comprises:

the first limiting part is arranged on the valve seat, the end part of the first limiting part is abutted to the adjusting rod, and friction force is added to the adjusting rod, so that the first limiting part limits the rotation of the adjusting rod.

Preferably, the adjusting rod further comprises a second limiting part, the second limiting part is located at the outer edge of the adjusting rod, and a concave part used for being clamped with the end part of the first limiting part is arranged on the second limiting part.

Preferably, the end of the first limiting portion is inclined, and the end is arc-shaped and abuts against the recessed portion.

Preferably, the first limiting part further comprises a U-shaped positioning part, a positioning bump is arranged on the valve seat, the bottom of the U-shaped positioning part is attached to the upper surface of the positioning bump, the straight edge of the U-shaped positioning part is clamped on the side part of the positioning bump, the straight edge on the left side of the U-shaped positioning part is used for limiting the right inclination of the end part of the first limiting part, the straight edge on the right side of the U-shaped positioning part is used for limiting the left inclination of the end part of the first limiting part, and the U-shaped positioning part is connected with the positioning bump through a fastening piece.

Preferably, the bottom of the U-shaped positioning member is provided with a circular hole, the positioning protrusion is correspondingly provided with a threaded hole, and the fastening member is a bolt or a screw.

Preferably, a valve core is arranged in the valve seat, a hot water inlet and a hot water outlet are arranged on one side of the valve core, a cold water inlet and a cold water outlet are arranged on the other side of the valve core, an outlet of the valve core is communicated with the cold water outlet, a pressure regulating plate is arranged at the cold water outlet, and the pressure regulating plate is connected with the regulating rod in a sliding mode along the vertical direction through a connecting piece.

Preferably, the adjusting rod further comprises an elastic piece, the elastic piece is located in the valve seat, and two ends of the elastic piece respectively abut against the lower surface of the adjusting rod and the end of the connecting piece.

Preferably, the adjusting rod is provided with an installation groove, and the elastic piece is arranged in the installation groove.

Preferably, an annular groove is formed in the valve seat corresponding to the valve element, a plurality of annular grooves are formed in the valve seat, a sealing element and a clamping element are arranged in the annular groove, and the sealing element and the clamping element are correspondingly sleeved on the surface of the valve element.

A valve seat is located between a gas water heater and a faucet and connected with the first pipeline through a second pipeline, a cold water end of the gas water heater is connected with the first pipeline, a hot water end of the gas water heater is connected with the second pipeline, a hot water outlet of the valve seat is connected with a hot water port of the faucet, and a cold water outlet of the valve seat is connected with a cold water port of the faucet.

On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the utility model.

The positive progress effects of the utility model are as follows:

1. the valve seat is provided with the first limiting part for limiting the rotation of the adjusting rod, the end part of the first limiting part is abutted against the adjusting rod to increase the friction force with the adjusting rod, the adjusting rod is effectively prevented from rotating automatically under the driving of water flow or air flow, the valve body is always kept in a stable state, and the waste of water resources is reduced;

2. according to the utility model, the valve seat is provided with the positioning lug, the limiting part also comprises the U-shaped positioning piece, and the straight edge of the U-shaped positioning piece clamps the side part of the positioning lug to limit the end part of the first limiting part from being driven by the adjusting rod, so that the stability of the limiting part is improved, and the continuous limiting is provided for the adjusting rod;

3. according to the utility model, the elastic piece is arranged between the adjusting rod and the connecting piece, and the connecting piece is connected with the pressure regulating plate, so that when the connecting piece is driven to approach the adjusting rod and compress the elastic piece by water flow, the pressure regulating plate moves along with the connecting piece and allows a cold water outlet to be formed, the pressure of the connecting piece is pushed to be consistent with the reduced pressure at the side part of the valve core, and the valve core cannot be opened by mistake; and when rivers flow and reduce, the connecting rod is promoted by the elastic component, and the pressure regulating board shelters from the cold water delivery port for rivers flow out and reduce, and then increase the pressure of case lateral part, make case both sides pressure tend to balance and avoid the mistake to open, and whole pressure regulating process is automatic goes on, adjusts according to the rivers pressure that flows into the disk seat, can not influence the use.

Drawings

Fig. 1 is a schematic structural diagram of a first viewing angle according to a preferred embodiment of the utility model.

Fig. 2 is a schematic structural diagram of a second viewing angle according to a preferred embodiment of the utility model.

Fig. 3 is a schematic cross-sectional view of a-a in fig. 2.

Fig. 4 is a schematic structural diagram of an adjusting lever according to a preferred embodiment of the utility model.

Fig. 5 is a partially enlarged schematic view of fig. 4.

Fig. 6 is a schematic structural diagram of a voltage regulating assembly according to a preferred embodiment of the utility model.

Fig. 7 is a schematic structural diagram of a position limiting component according to a preferred embodiment of the utility model.

FIG. 8 is a schematic structural diagram of a valve seat according to a preferred embodiment of the present invention.

Description of reference numerals:

valve seat 1

Adjusting lever 2

Second limiting part 3

Recess 30

First limit part 4

U-shaped positioning piece 40

Bent end 41

Straight edges

42 and 43

Bottom 44

Circular hole 45

Fastener 5

Accommodating chamber 6

Positioning projection 11

Threaded hole 12

Positioning lug side 111

Elastic member 8

Cold water inlet 11

Cold water outlet 12

Hot water inlet 13

Hot water outlet 14

Pressure regulating plate 71

Mounting groove 21

Connecting rod 9

Pressure bearing member 10

Through-hole 101

Valve core 201

Seal 301

Clip 401

Via hole 22

Slide bar 23

Stop 24

Card slot 25

Detailed Description

The present invention will be more clearly and completely described in the following description of preferred embodiments, taken in conjunction with the accompanying drawings.

As shown in fig. 1-8, the present embodiment discloses a self-adjusting check valve, which includes a valve seat 1 and an adjusting rod 2 passing through the valve seat 1, wherein the adjusting rod 2 can rotate around its axis, and further includes:

the first limiting part 4 is arranged on the valve seat 1, the end part of the first limiting part 4 abuts against the adjusting rod 2, and friction force is added to the adjusting rod 2, so that the first limiting part 4 limits the rotation of the adjusting rod 2.

As shown in fig. 3, fig. 7 shows, specifically, still including holding chamber 6 on the disk seat 1, the one end that holds chamber 6 link up the surface of disk seat 1, the one end of adjusting pole 2 is inserted and is held in chamber 6 and rotate with disk seat 1 and be connected, the tip that disk seat 1's surface and first spacing 4 were located to first spacing 4 supports and leans on adjusting pole 2, put through rivers in disk seat 1, rivers strike to adjusting lever 2 and produce the reaction force, this reaction force drives adjusting lever 2 and rotates, the frictional force of pole 2 is adjusted in the increase of tip is with this balanced rivers to the reaction force of adjusting lever 2, and then the restriction is adjusted pole 2 and is rotated by oneself under the drive of rivers. In the present embodiment, the end of the first limiting portion 4 is a bent end 41, the bent end 41 is disposed obliquely and fixedly connected to the first limiting portion 4, the bent end 41 is processed by an arc, and preferably, the adjusting lever 2 is provided with an adjusting handle.

As shown in fig. 3 and 4, the self-adjusting check valve further includes a second limiting portion 3, the second limiting portion 3 is located at an outer edge of the adjusting rod 2, and a concave portion 30 is arranged on the second limiting portion 3 and used for being clamped with an end portion of the first limiting portion 4.

Specifically, the recessed portion 30 is provided with a plurality of and spaced apart recesses, the bottom of the recessed portion 30 is an arc bottom, and is matched with the bent end portion 41, and preferably, the recessed portion 30 is a straight knurling. When the bent end 41 is clamped at the bottom of the recess 30, the friction force is maximum, and the limiting effect is best.

In another embodiment of the present embodiment, the second limiting portion 3 may be knurled, and a plurality of first limiting portions 4 may be disposed on the valve seat 1 and located on the periphery of the adjusting rod 2.

As shown in fig. 2 and 3, in the self-adjusting check valve provided by the present invention, the first position-limiting portion 4 further includes a U-shaped positioning member 40, the valve seat 1 is provided with a positioning protrusion 11, a bottom 44 of the U-shaped positioning member 40 is attached to an upper surface of the positioning protrusion 11,

straight edges

42 and 43 of the U-shaped positioning member 40 clamp a side portion 111 of the positioning protrusion 11, the straight edge 42 on the left side of the U-shaped positioning member is used for limiting an end portion of the first position-limiting portion 4 from tilting to the right, the straight edge 43 on the right side of the U-shaped positioning member is used for limiting an end portion of the first position-limiting portion 4 from tilting to the left, and the U-shaped positioning member is connected to the positioning protrusion 11 through a fastening member 5.

As shown in fig. 7 and 8, in the self-adjusting check valve provided by the present invention, a circular hole 45 is formed at the bottom of the U-shaped positioning member 40, a threaded hole 12 is correspondingly formed on the positioning protrusion 11, and the fastening member 5 is a bolt or a screw.

Specifically, the bent end 41 is controlled to be clamped in the recess 30 by adjusting the fastener 5, preferably, the fastener 5 is a bolt or a screw. When the adjusting rod 2 rotates automatically under water flow impact, the bent end 41 of the first limiting part 4 is clamped in the concave part 30, the adjusting rod 2 tends to rotate and may drive the bent end 41 to rotate, when the adjusting rod 2 has a rightward rotation tendency, the left straight edge 42 of the U-shaped positioning part is tightly attached to the positioning lug side part 111 and provides a rightward acting force for the first limiting part 4, so that the bent end 41 keeps still, the friction force is further increased, and similarly, when the adjusting rod 2 has a leftward rotation tendency, the right straight edge 43 of the U-shaped positioning part 40 is tightly attached to the positioning lug side part 111 and provides a leftward acting force for the first limiting part 4.

As shown in fig. 2 and 3, in the self-adjusting check valve provided by the utility model, a valve core 201 is arranged in a valve seat 1, a hot water inlet 13 and a hot water outlet 14 are arranged on one side of the valve core 201, a cold water inlet 11 and a cold water outlet 12 are arranged on the other side of the valve core 201, an outlet of the valve core 201 is communicated with the cold water outlet 12, an adjusting plate 71 is arranged at the cold water outlet 12, and the adjusting plate 71 is connected with an adjusting rod 2 in a sliding manner along a vertical direction through a connecting piece.

Specifically, be equipped with cold water inlet 11 and cold water outlet 12 on the disk seat 1, cold water inlet 11 is located the one end that holds chamber 6, cold water outlet 12 is located the lateral part of disk seat 1, hot water inlet 13, hot water outlet 14, be equipped with the external screw thread on cold water inlet 11 and the cold water outlet 12, hold chamber 6 and vertically locate in the disk seat 1, the one end that holds chamber 6 link up the surface of disk seat 1 and with adjust pole 2 plug-in connection, the other end that holds chamber 6 is connected with cold water inlet 11, cold water outlet 12 intercommunication holds one side of chamber 6, the opposite side that holds chamber 6 communicates the export of case 201, preferably, case 201 is the check valve. Rivers flow into and push up the connecting piece from cold water inlet 11, the connecting piece vertical movement drives pressure regulating plate 71 and removes, block partial rivers through pressure regulating plate 71 and increase the pressure of case 201 export one side, make the case 201 opposite side that does not open rivers keep the pressure differential basically unchangeable with the one side of opening rivers, and then prevent that case 201 from opening by mistake, the case 201 of having avoided causing because of opening delivery port 12 is opened and is sneaked into different rivers, influence the user and open the use experience of one side delivery port alone.

As shown in fig. 3 and 4, the self-adjusting check valve further comprises an elastic member 8, wherein the elastic member 8 is located in the valve seat 1, and two ends of the elastic member 8 respectively abut against the lower surface of the adjusting rod 2 and the end of the connecting member.

As shown in fig. 3 and 6, in the self-adjusting check valve provided by the present invention, the adjusting rod 2 is provided with an installation groove 21, and the elastic member 8 is disposed in the installation groove 21.

Specifically, the mounting groove 21 is a cylindrical groove, the notch of the mounting groove 21 corresponds to the connecting member, one end of the elastic member 8 is fixedly connected to the bottom of the mounting groove 21, the other end of the elastic member 8 abuts against the connecting member, and preferably, the elastic member 8 is a spring. The connecting piece comprises connecting rod 9 and pressure-bearing piece 10, and the one end of connecting rod 9 is connected in the axle center of pressure-bearing piece 10, and the other end and the mounting groove 21 plug-in connection of connecting rod 9, and pressure-bearing piece 10 supports to lean on in cold water inlet 11, and it has through-hole 101 to open on the pressure-bearing piece 10, transfers clamp plate 71 vertical connection on with pressure-bearing piece 10, transfers to be equipped with the pressure regulating clearance between clamp plate 71 and the cold water delivery port 12. Pressure-bearing piece 10 receives the rivers impact of cold water inlet 11 and forms ascending effort, ascending effort extrusion elastic component 8, simultaneously, ascending effort drives connecting rod 9 along the vertical direction rebound that holds chamber 6, pressure regulating plate 71 follows connecting rod 9 rebound, and then lets open cold water outlet 12, the rivers pressure that promotes pressure-bearing piece 10 is unanimous with the pressure that the case 201 lateral part runs off, make case 201 can not open by mistake and take place the condition of cold water hot water mixed flow, otherwise, pressure regulating plate 71 falls and blocks rivers inflow cold water outlet 12, elastic component 8 compression and the cooperation of pressure regulating plate 71, pressure regulating plate 71 blocks rivers and has increased the pressure that holds in the chamber 6, in order to reach the effect of balanced case 201 both sides pressure.

As shown in fig. 5 and 6, in an embodiment of the present embodiment, the adjusting rod 2 is provided with an inner cavity, the connecting rod 9 and the pressure-bearing member 10 are slidably connected in the inner cavity and can slide along the axial direction of the adjusting rod 2, one end of the connecting rod 9 is vertically connected with the axis of the pressure-bearing member 10, the other end of the connecting rod 9 is connected with the mounting groove 21 in an inserting manner, and the pressure-bearing member 10 is a circular plate with a through hole 101, i.e. a hollow circular plate, for water to pass through. Vertical connection pressure regulating plate 71 on the outer fringe of plectane, it is equipped with barrier portion 24 to adjust pole 2, barrier portion 24 extends the setting along the circumferential direction who adjusts pole 2, be provided with via hole 22 on the barrier portion 24, form the pressure regulating clearance between pressure regulating plate 71 and the via hole 22, be equipped with draw-in groove 25 on the pressure-bearing part 10, the slide bar 23 that extends along the axis direction has on adjusting pole 2, draw-in groove 25 card is located slide bar 23 and can be when water inlet 11 is opened or is closed, it slides from top to bottom on slide bar 23 to drive pressure-bearing part 10 according to the pressure variation of rivers, rotate and adjust pole 2, it keeps away from or is close to via hole 22 to adjust pole 2 drive pressure regulating plate 71, flow size through cold water outlet 12 water is crossed to the change pressure-bearing part 10. Can drive connecting rod 9 and pressure-bearing piece 10 synchronous rotation when adjusting pole 2 is rotatory, hold the pressure in the chamber 6 through via hole 22 and the increase of pressure regulating board 71, reduce connecting rod 9 and the pivoted condition of adjusting pole 2 through the cooperation of first spacing portion 4 and the spacing portion 3 of second to prevent that case 201 from opening, reduced simultaneously and adjusted pole 2 the condition of rotating by oneself because of the impact of rivers.

As shown in fig. 3, in the self-adjusting check valve provided by the present invention, an annular groove is formed in the valve seat 1 corresponding to the valve element 201, a plurality of annular grooves are formed in the annular groove, a sealing member 301 and a clamping member 401 are arranged in the annular groove, and the sealing member 301 and the clamping member 401 are correspondingly sleeved on the surface of the valve element 201.

Specifically, the inner wall of the position of the valve core 201 is provided with two annular grooves, one of the two annular grooves is provided with a sealing element 301, and preferably, the sealing element 301 is a rubber sealing ring. The sealing element 301 is sleeved on the valve core 201 and clamped in the annular groove to improve the sealing property of the valve core 201; a clamping piece 401 is arranged in the other annular groove, and the clamping piece 401 is sleeved on the valve element 201 and plays a role in fixing the valve element 201 and the valve seat 1.

A valve seat 1 is located between a gas water heater and a faucet and connected with the first pipeline through a second pipeline, a cold water end of the gas water heater is connected with the first pipeline, a hot water end of the gas water heater is connected with the second pipeline, a hot water outlet 14 of the valve seat 1 is connected with a hot water port of the faucet, and a cold water outlet 12 of the valve seat 1 is connected with a cold water port of the faucet.

In this embodiment, the first pipeline and the second pipeline are connecting water pipes, the first pipeline connects the cold water end of the gas water heater with the tap water end, water flows into the gas water heater and is heated to become hot water, and flows out from the hot water end of the gas water heater through the second pipeline, the second pipeline is connected with the hot water inlet 13 of the valve seat 1 and flows out from the hot water outlet 14, and the hot water outlet 14 is connected with the hot water end of the faucet; the first pipeline is also used for connecting a tap water end with a cold water inlet 11 of the valve seat 1, a cold water outlet 12 is connected with a cold water end of the water faucet, and the water faucet, the valve seat 1 and the gas water heater form a circulation loop. When the user opens tap and the exclusive use cold water, the opening of case 201 has aroused the start-up of gas heater fan, start gas heater fan heating cold water and form hot water and sneak into case 201, and then the delivery port 12 that the user opened that flows in the opposite side of case 201, the hydrothermal thoughtlessly use of cold water has been caused, not only the use experience of user exclusive use cold water has been influenced, and cause indoor noise and gas extravagant, and the problem that this case 201 was opened by mistake has been avoided in the connecting piece, the setting of pressure regulating board 71 and elastic component 8, the availability factor of gas has been improved, waste is avoided.

While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the utility model, and these changes and modifications are within the scope of the utility model.

Claims

1. The utility model provides a self-interacting check valve, its including the disk seat with wear to locate adjust the pole on the disk seat, it can be rotatory around self axis to adjust the pole, its characterized in that still includes:

2. The self-adjusting check valve of claim 1, further comprising a second limiting portion, wherein the second limiting portion is located at an outer edge of the adjusting rod, and a concave portion is formed in the second limiting portion and used for clamping an end portion of the first limiting portion.

3. The self-adjusting check valve of claim 2, wherein an end of the first stopper is disposed obliquely, and the end is rounded and abuts against the recess.

4. The self-adjusting check valve of claim 1, wherein the first position-limiting portion further comprises a U-shaped positioning member, a positioning protrusion is disposed on the valve seat, the bottom of the U-shaped positioning member is attached to the upper surface of the positioning protrusion, the straight edge of the U-shaped positioning member clamps the side portion of the positioning protrusion, the straight edge of the left side of the U-shaped positioning member is used for limiting the right inclination of the end portion of the first position-limiting portion, the straight edge of the right side of the U-shaped positioning member is used for limiting the left inclination of the end portion of the first position-limiting portion, and the U-shaped positioning member is connected with the positioning protrusion through a fastening member.

5. The self-adjusting check valve as recited in claim 4, wherein the bottom of the U-shaped positioning member has a circular hole, the positioning protrusion has a corresponding threaded hole, and the fastening member is a bolt or a screw.

6. The self-adjusting check valve as recited in claim 1, wherein a valve element is disposed in the valve seat, a hot water inlet and a hot water outlet are disposed on one side of the valve element, a cold water inlet and a cold water outlet are disposed on the other side of the valve element, an outlet of the valve element is communicated with the cold water outlet, and a pressure adjusting plate is disposed at the cold water outlet and is slidably connected to the adjusting rod in a vertical direction through a connecting member.

7. The self-adjusting, one-way valve of claim 6, further comprising a resilient member located within the valve seat and having opposite ends abutting the lower surface of the adjustment stem and the ends of the connector, respectively.

8. The self-adjusting, check valve of claim 7, wherein said adjustment stem has a mounting slot formed therein, said resilient member being disposed within said mounting slot.

9. The self-adjusting check valve as recited in claim 8, wherein the valve seat has a plurality of annular grooves formed therein corresponding to the valve element, and a sealing member and a locking member are disposed in the annular grooves and are correspondingly fitted over the surface of the valve element.

10. A gas water heater is characterized in that a valve seat is located between the gas water heater and a faucet and is connected with the faucet through a first pipeline and a second pipeline, a cold water end of the gas water heater is connected with the first pipeline, a hot water end of the gas water heater is connected with the second pipeline, a hot water outlet of the valve seat is connected with a hot water opening of the faucet, and a cold water outlet of the valve seat is connected with a cold water opening of the faucet.