CN218625561U

CN218625561U - Safety valve and coffee machine with same

Info

Publication number: CN218625561U
Application number: CN202223060400.0U
Authority: CN
Inventors: 郭建刚
Original assignee: Guangdong Xinbao Electrical Appliances Holdings Co Ltd
Current assignee: Guangdong Xinbao Electrical Appliances Holdings Co Ltd
Priority date: 2022-11-17
Filing date: 2022-11-17
Publication date: 2023-03-14
Anticipated expiration: 2032-11-17

Abstract

The utility model provides a relief valve and have coffee machine of relief valve belongs to control valve technical field. This relief valve includes: the valve body is internally provided with a valve cavity, and the valve body is provided with a liquid inlet, a liquid outlet and a pressure relief port which are communicated with the valve cavity; the buffer piece is fixed in the valve cavity and at least comprises a buffer part which is arranged corresponding to the liquid inlet and has elasticity, so that the water flow entering from the liquid inlet acts on the surface of the buffer part to deform the buffer part so as to buffer the water flow; the pressure relief assembly is arranged on the valve body and used for opening the pressure relief opening when the water pressure in the valve cavity exceeds a preset value. The safety valve integrates the buffer piece and the pressure relief assembly on the valve body, so that the safety valve has the functions of pressure stabilization and safety pressure relief.

Description

Safety valve and coffee machine with same

Technical Field

The utility model relates to a control valve technical field especially relates to a relief valve and have coffee machine of relief valve.

Background

At present, pressure stabilizing valves are used in partial full-automatic coffee machines in the market to improve the effect of coffee grease and the silencing effect of the whole machine. But do not have safe pressure release function, safe pressure release is to concatenate in the water route, causes the water route complicated like this, and occupation space is big, and the cost is higher relatively. Although some combination valves combine the pressure stabilizing valve and the pressure relief valve, the structure is still complex, for example, chinese patent with publication No. CN205136709U discloses a mechanical multifunctional control valve, which includes a pressure reducing and stabilizing part and a complete pressure relief part. The pressure reducing and stabilizing part comprises a pressure reducing and stabilizing valve body, a piston arranged in the pressure reducing and stabilizing valve body, a pressure adjusting spring, a piston sealing piece, a pre-pressing spring and the like. This decompression steady voltage valve body structure is complicated, need set up piston and spring etc. in inside, and its pressure variation according to the delivery port moves, can't adjust the rivers pressure of water inlet in advance and realize the steady voltage.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned technical problem that exists among the prior art, the utility model provides an integrated relief valve that has steady voltage and safe pressure release function and contain the coffee machine of this relief valve.

The embodiment of the utility model provides a safety valve, the safety valve includes:

the valve body is internally provided with a valve cavity, and the valve body is provided with a liquid inlet, a liquid outlet and a pressure relief port which are communicated with the valve cavity;

the buffer piece is fixed in the valve cavity and at least comprises a buffer part which is arranged corresponding to the liquid inlet and has elasticity, so that the water flow entering from the liquid inlet acts on the surface of the buffer part to deform the buffer part so as to buffer the water flow;

and the pressure relief assembly is arranged on the valve body and used for opening the pressure relief opening when the water pressure in the valve cavity exceeds a preset value.

Further, the valve body includes:

the top of the valve seat is sunken downwards to form a groove;

the valve gap, its lock is in the top of disk seat, the closing cap the recess makes the recess forms the valve pocket, the bolster still is including setting up the boss portion of buffering portion periphery, boss portion top with the valve gap offsets, the bottom with the tank bottom of recess offsets. Therefore, the buffer piece in the valve cavity is positioned by utilizing the valve cover and the groove bottom of the groove, the structure is simple, and the space in the valve cavity is compact.

Further, the buffer part is a sheet-shaped body, and the thickness of the buffer part is smaller than that of the boss part. The buffer piece is small in size and simple in structure.

Further, the bottom of the valve body extends downwards respectively to form a first protruding portion and a second protruding portion, a first flow channel communicated with the valve cavity is arranged in the first protruding portion, one end, far away from the valve cavity, of the first flow channel forms the liquid inlet, a second flow channel is arranged in the second protruding portion, the liquid outlet and the pressure relief port are arranged on the side wall of the second flow channel and communicated with the second flow channel, a liquid outlet pipeline is connected to the liquid outlet, and a pressure relief pipeline is connected to the pressure relief port.

Furthermore, the outer peripheral wall of the first protruding portion is provided with an external thread, and other pipelines can be conveniently connected through the external thread of the first protruding portion.

Furthermore, the first flow channel and the second flow channel both extend vertically, and the liquid outlet pipeline and the pressure relief pipeline both extend transversely; the pressure relief opening is located the below of liquid outlet, the pressure relief opening can in time carry out the pressure relief to near the water pressure of liquid outlet like this.

Further, the pressure relief assembly includes:

the one-way valve is arranged in the pressure relief pipeline and can move in the pressure relief pipeline so as to open or close the pressure relief opening;

the pressure relief joint is fixed at the free end of the pressure relief pipeline and is provided with a joint outlet communicated with the pressure relief pipeline;

the spring is arranged in the pressure relief pipeline, the first end of the spring is abutted to the pressure relief connector, and the second end of the spring is abutted to the one-way valve and used for exerting acting force on the one-way valve to close the pressure relief opening.

The structure ensures that the one-way valve can extrude the spring under the action of water pressure to automatically open the pressure relief port when the water pressure in the valve cavity exceeds the preset pressure; when the water pressure in the valve cavity is lower than the preset pressure, the one-way valve can automatically close the pressure relief opening under the action of the spring.

Further, the safety valve further includes:

and the plug and the pressure relief connector can be arranged at the free end of the pressure relief pipeline in a replaceable manner and are used for plugging the pressure relief opening. The pressure relief assembly can be replaced by a plug as required, and the safety relief valve can be switched with or without safety pressure relief.

Further, the periphery of the free end of the pressure release pipeline is provided with a first clamping portion, the plug and the pressure release connector comprise a plugging portion inserted in the pressure release pipeline and a second clamping portion arranged at one end of the plugging portion, and when the plug and the plugging portion of the pressure release connector are respectively inserted in the pressure release pipeline, the first clamping portion is clamped with the second clamping portion. This structure makes pressure release joint and end cap easy dismounting.

A coffee machine, the coffee machine includes the water pump, the coffee machine still includes a relief valve of any preceding embodiment, the inlet of valve body communicates with the export of water pump.

Compared with the prior art, the utility model discloses beneficial effect lies in:

the relief valve that this embodiment provided is through setting up the bolster in the valve pocket, and the bolster has and corresponds the setting with the inlet and have elastic buffering portion, thereby the rivers through the inlet can directly impact buffering portion and make its deformation cushion rivers, make water pressure and velocity of flow more stable. The relief valve of this embodiment not only can utilize the self elasticity of bolster to the rivers that enter into the valve pocket to advance the steady voltage, uses with the cooperation of pressure release subassembly moreover and can also make this relief valve have the function of steady voltage and safe pressure release, and its is small, simple structure and compactness.

Drawings

Fig. 1 is an exploded view of a safety valve according to an embodiment of the present invention;

FIG. 2 is a sectional view of a safety valve assembly pressure relief assembly according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a safety valve equipped with a pressure relief assembly according to an embodiment of the present invention;

figure 4 is a sectional view of the safety valve assembling plug of the embodiment of the invention,

fig. 5 is the utility model discloses a relief valve assembly end cap's schematic structure view.

The members denoted by reference numerals in the drawings:

1-a valve body; 11-valve cover; 111-a first projection; 112-a second projection; 113-pressure relief pipeline; 114-a liquid outlet line; 12-valve cover; 13-a valve cavity; 14-a liquid inlet; 15-a liquid outlet; 16-pressure relief port; 17-a first flow channel; 18-a second flow path; 2-a buffer member; 21-a buffer; 22-a boss portion; 3-a pressure relief assembly; 31-a one-way valve; 32-one-way valve seat; 33-a spring; 34-a second seal ring; 35-pressure relief connection; 4-plug; 5-a first sealing ring; 6-a pressure pipe assembly; 61-bayonet lock; 62-a third seal ring; 63-pressure resistant pipe.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.

As shown in fig. 1 and 2, the embodiment of the present invention provides a safety valve, which includes a valve body 1, a buffer 2 and a pressure relief assembly 3.

The valve body 1 is internally provided with a valve cavity 13, and the valve body 1 is provided with a liquid inlet 14, a liquid outlet 15 and a pressure relief port 16 which are communicated with the valve cavity 13.

The buffer member 2 is fixed in the valve cavity 13 and at least comprises a buffer portion 21 which is arranged corresponding to the liquid inlet 14 and has elasticity, and water flow entering from the liquid inlet 14 acts on the surface of the buffer portion 21 to deform the buffer portion so as to buffer the water flow.

The pressure relief assembly 3 is arranged on the valve body 1 and used for opening the pressure relief port 16 when the water pressure in the valve cavity 13 exceeds a preset value, so that the pressure relief is completed.

The relief valve that this embodiment provided can utilize the self elasticity of bolster 2 to cushion the steady voltage to the rivers that enter into in the valve pocket 13, uses with pressure release subassembly 3 cooperation moreover and can also make this relief valve have steady voltage and safe pressure release's function simultaneously, and this relief valve is small, simple structure and compactness.

As shown in fig. 1, in some embodiments, the valve body 1 includes two parts, a bonnet 11 and a bonnet 12. The top of the valve cover 11 is recessed downward to form a groove. The valve cover 12 is buckled on the top of the valve cover 11 to cover the groove, so that the groove forms a valve cavity 13, and the groove wall of the groove forms the cavity wall of the valve cavity 13.

As shown in fig. 2, the peripheral edge of the cushion member 2 of the present embodiment is attached to the groove wall of the groove, the top of the peripheral edge of the cushion member 2 abuts against the valve cover 12, and the bottom abuts against the groove bottom of the groove. The buffer 2 is thus fixed in the valve chamber 13 by the valve cover 12 and the groove bottom of the groove so that it does not move under the impact of the water flow. This structure is simple, so that the space inside the valve chamber 13 is compact.

As shown in fig. 1, in some embodiments, the cushion member 2 includes a cushioning portion 21 and a boss portion 22 provided on the outer periphery of the cushioning portion 21. The boss portion 22 is adapted to abut against the valve cover 12 and the groove bottom of the groove, respectively, and the entire cushion portion 21 may be a sheet-like body. Further, it is preferable that the material of the buffer portion 21 is elastic material such as silicone, so that the buffer portion 21 is easily deformed when water flows thereon.

The thickness of the buffer portion 21 is smaller than that of the peripheral boss portion 22, and any position on the buffer portion 21 may be provided corresponding to the liquid inlet 14. The liquid inlet 14 may be disposed on the valve cover 12 or on the valve cover 11, as long as it can ensure that the water flow entering the valve cavity 13 can directly act on the lower buffer portion 21.

As shown in fig. 2 and 3, in some embodiments, the bottom of the valve cover 11 extends downward to form a first protrusion 111 and a second protrusion 112, respectively, a first flow channel 17 is vertically arranged in the first protrusion 111, the top end of the first flow channel 17 communicates with the inside of the valve chamber 13, and the other end extends through the bottom surface of the first protrusion 111 to form the liquid inlet 14.

The second protrusion 112 is provided with a second flow channel 18 vertically arranged therein, the top end of the second flow channel 18 is also communicated with the valve cavity 13, and the bottom end extends to the bottom of the second protrusion 112 and does not penetrate through the bottom surface thereof. The liquid outlet 15 and the pressure relief port 16 of the valve body 1 are respectively arranged on the side wall of the second flow passage 18.

In this embodiment, the communication position between the first flow channel 17 and the valve cavity 13 and the communication position between the second flow channel 18 and the valve cavity 13 are both disposed at the bottom of the buffer 2, so that after the water flow in the first flow channel 17 enters the valve cavity 13, the surface of the buffering portion 21 of the buffer 2 is directly impacted to deform the surface of the buffer so as to buffer the impact force of the water flow, so as to achieve the pressure stabilizing effect, and the water flow is buffered and then flows into the second flow channel 18 and is discharged through the liquid outlet 15 on the sidewall.

As shown in fig. 2, in some embodiments, the outer circumferential wall of the first protruding portion 11 is provided with an external thread and a first sealing ring 5 sleeved on the first protruding portion 111, the first protruding portion 111 can be connected with a water conveying pipeline through a thread, and the like, so as to supply water into the valve cavity 13, and the first sealing ring 5 is used for ensuring the sealing performance of the connection between the water conveying pipeline and the first protruding portion 11.

As shown in fig. 2 and 3, in some embodiments, liquid outlet 15 of the present embodiment is connected to liquid outlet pipe 114, and pressure relief port 16 is connected to pressure relief pipe 113. Wherein, be equipped with the withstand voltage pipe 63 with liquid outlet 15 intercommunication in the drain pipe 114, the outside cover of withstand voltage pipe 63 has bayonet lock 61, is equipped with third sealing washer 62 between the inner wall of bayonet lock 61 and drain pipe 114 to guarantee the leakproofness between the two, the rivers that enter into in the second flow path 18 can flow out through withstand voltage pipe 63 like this.

In some embodiments, as shown in fig. 2, the pressure relief port 16 is located below the liquid outlet port 15 on a side wall of the second flow path 18. Thus, if the pressure around the liquid outlet 15 is too high, the pressure relief port 16 can reduce the water pressure around the liquid outlet 15 in time to protect the pressure tube 63.

As shown in fig. 1, in some embodiments, the pressure relief assembly 3 includes a one-way valve 31, a one-way valve seat 32, a spring 33, a second sealing ring 34, and a pressure relief fitting 35.

The check valve 31 is provided on the check valve seat 32 and is provided in the pressure relief pipeline 113 together with the single valve seat 1, and the check valve 31 is movable in the axial direction of the pressure relief pipeline 113.

The pressure relief connector 35 is fixed at a free end of the pressure relief pipeline 113, a connector outlet (not shown in the figure) communicated with the pressure relief pipeline 113 is arranged on the pressure relief connector 35, and the second sealing ring 34 is arranged between the pressure relief connector 35 and the pressure relief pipeline 113 for ensuring the sealing performance between the two.

The spring 33 is disposed in the pressure release line 113, and a first end of the spring 33 abuts against the check valve 31 and a second end thereof abuts against the pressure release joint 35, and is configured to apply an urging force to the check valve 31 to close the pressure release port 16.

The liquid outlet 15 and the pressure relief opening 16 of this embodiment can be close to each other, and the effort of spring 33 to check valve 31 can be less than the maximum pressure that withstand voltage pipe 63 bore rivers, and when the pressure of liquid outlet 15 was too big, water pressure can directly promote check valve 31 and make it overcome spring 33's elasticity like this to open pressure relief opening 16, this kind of water just can flow out from pressure relief opening 16 and play the effect of pressure relief protection.

Of course, the water pressure in the valve chamber 13 is usually not much different from the water pressure of the liquid outlet 15, and the force applied by the spring 33 to the check valve 31 may be smaller than or equal to the water pressure in the valve chamber 13.

As shown in fig. 4 and 5, in some embodiments the safety valve further comprises a plug 4 which can be arranged at the free end of the pressure relief line 113, interchangeably with a pressure relief connector 35 in the pressure relief assembly 3, for plugging the pressure relief vent 16.

Specifically, the periphery of the free end of the pressure relief pipeline 113 may be provided with a first clamping portion, and the plug 4 and the pressure relief joint 35 both include a plugging portion inserted in the pressure relief pipeline 113 and a second clamping portion arranged at one end of the plugging portion. When the plugging portions of the plug 4 and the pressure relief connector 35 are respectively inserted into the pressure relief pipeline 113, the first clamping portion and the second clamping portion are clamped, so that the plug 4 and the pressure relief connector 35 are respectively connected with the pressure relief pipeline 111. Therefore, the safety valve can be selectively provided with the pressure relief component 3 or the plug 4 in the pressure relief pipeline according to the requirement, and the safety relief of the safety valve is switched.

The embodiment of the utility model provides a still provide a coffee machine, coffee machine include water pump and any one of the above-mentioned embodiment a relief valve, the delivery port of water pump and the inlet 14 intercommunication of valve body 1. The liquid outlet 15 of the valve body 1 can be connected with a water using part, and the water pumped by the water pump can be stabilized and decompressed through the mounting valve.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention. Various modifications and equivalents of the invention can be made by those skilled in the art within the spirit and scope of the invention, and such modifications and equivalents should also be considered as falling within the scope of the invention.

Claims

1. A safety valve, characterized in that it comprises:

the pressure relief valve comprises a valve body (1), wherein a valve cavity (13) is formed in the valve body (1), and a liquid inlet (14), a liquid outlet (15) and a pressure relief opening (16) which are communicated with the valve cavity (13) are formed in the valve body (1);

the buffer piece (2) is fixed in the valve cavity (13) and at least comprises a buffer part (21) which is arranged corresponding to the liquid inlet (14) and has elasticity, so that water flow entering from the liquid inlet (14) acts on the surface of the buffer part (21) to deform the surface of the buffer part so as to buffer the water flow;

the pressure relief assembly (3) is arranged on the valve body (1) and is used for opening the pressure relief opening (16) when the water pressure in the valve cavity (13) exceeds a preset value.

2. A safety valve according to claim 1, characterized in that the valve body (1) comprises:

a valve seat (11) with the top recessed downwards to form a groove;

valve gap (12), its lock is in the top closing cap of valve seat (11) the recess makes the recess forms valve pocket (13), bolster (2) are still including setting up boss portion (22) of buffer portion (21) periphery, the top of boss portion (22) with valve gap (12) offset, the bottom with the tank bottom of recess offsets.

3. A safety valve according to claim 2, wherein the relief portion (21) is a sheet-like body, and the thickness of the relief portion (21) is smaller than the thickness of the boss portion (22).

4. A safety valve according to claim 2, wherein the bottom of the valve seat (11) extends downward to form a first protrusion (111) and a second protrusion (112), a first flow channel (17) communicating with the valve cavity (13) is provided in the first protrusion (111), the end of the first flow channel (17) far away from the valve cavity (13) forms the liquid inlet (14), a second flow channel (18) is provided in the second protrusion (112), the liquid outlet (15) and the pressure relief port (16) are both provided on the side wall of the second flow channel (18) and communicate with the second flow channel (18), a liquid outlet pipeline (114) is connected to the liquid outlet (15), a pressure relief pipeline (113) is connected to the pressure relief port (16), and the pressure relief assembly (3) is detachably provided in the pressure relief pipeline (113).

5. A safety valve according to claim 4, characterised in that the peripheral wall of the first projection (111) is provided with an external thread.

6. A safety valve according to claim 4 in which the first flow passage (17) and the second flow passage (18) each extend vertically, the outlet line (114) and the pressure relief line (113) each extend laterally, and the pressure relief port (16) is located below the outlet port (15).

7. A safety valve according to claim 4, characterized in that the pressure relief assembly (3) comprises:

a check valve (31) disposed in the pressure relief line (113) and movable in the pressure relief line (113) to open or close the pressure relief port (16);

a pressure relief connector (35) fixed to a free end of the pressure relief pipeline (113) and having a connector outlet communicating with the pressure relief pipeline (113);

and the spring (33) is arranged in the pressure relief pipeline (113), the first end of the spring (33) is abutted to the pressure relief joint (35), and the second end of the spring (33) is abutted to the one-way valve (31) and is used for applying acting force to the one-way valve (31) to close the pressure relief opening (16).

8. The safety valve of claim 7, further comprising:

and the plug (4) and the pressure relief joint (35) are arranged at the free end of the pressure relief pipeline (113) in a replaceable manner and are used for plugging the pressure relief opening (16).

9. A safety valve according to claim 8, characterized in that the periphery of the free end of the pressure relief pipeline (113) is provided with a first clamping portion, the plug (4) and the pressure relief connector (35) each comprise a blocking portion inserted into the pressure relief pipeline (113) and a second clamping portion arranged at one end of the blocking portion, and when the blocking portion of the plug (4) and the blocking portion of the pressure relief connector (35) are inserted into the pressure relief pipeline (113), the first clamping portion and the second clamping portion are clamped.

10. A coffee machine comprising a water pump, characterized in that it further comprises a safety valve according to any one of claims 1 to 9, the inlet (14) of the valve body (1) being in communication with the outlet of the water pump.