CN219911890U

CN219911890U - Safety valve

Info

Publication number: CN219911890U
Application number: CN202321223938.0U
Authority: CN
Inventors: 钟亮兵; 湛国胜
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-05-19
Filing date: 2023-05-19
Publication date: 2023-10-27
Anticipated expiration: 2033-05-19

Abstract

The utility model discloses a safety valve, which comprises: the valve body is internally provided with a valve cavity penetrating through the whole valve body, the valve body is provided with an exhaust hole communicated with the valve cavity, a double joint, a sealing ring, an elastic plug, a first spring and a spring seat are sequentially arranged in the valve cavity from left to right, one end of the double joint is connected with the valve body, the large end of the sealing ring is contacted with the double joint, and the other end of the double joint is connected with other pipe fittings; the sealing ring corresponds to the exhaust hole; the right end of the elastic plug is sleeved in a first spring, and the first spring is arranged in the spring seat; an overpressure protection channel communicated with the valve cavity is arranged on the valve body corresponding to the elastic plug, a valve needle is arranged between the overpressure protection channel and the valve cavity, an adjusting spring is arranged at the upper end of the valve needle, and the upper end of the adjusting spring is sealed in the overpressure protection channel through a threaded spring cover; the exhaust hole is communicated with the overpressure protection channel; and an external pipeline sealing cover is also arranged at the top of the overpressure protection channel.

Description

Safety valve

Technical Field

The utility model relates to the field of valves, in particular to a safety valve.

Background

Some existing valves are exhausted by arranging valve needle switch exhaust holes in the exhaust holes, and the valve needles of the valves with the structure are blocked and do not die, so that the valve needles are easy to be blocked in the holes and cannot reset when the pressure is high. Later along with the improvement of the valve, by arranging a single exhaust channel, when the valve is not used for supplying water or mixing water and steam, the automatic exhaust is realized; however, due to the fact that the exhaust channel and the pressure relief channel of the valve are arranged separately, the whole structure of the valve is complex, production consumables are more, the volume is larger, and the production efficiency is low.

Accordingly, improvements in the prior art are still needed.

Disclosure of Invention

The utility model aims to provide a safety valve, which aims to solve the technical problems of complex integral structure, larger volume, low production efficiency and high manufacturing cost of the valve caused by the split arrangement of an exhaust channel and a water outlet channel of the existing safety valve with an exhaust function.

In order to achieve the above purpose, the technical scheme of the utility model is as follows: a safety valve, comprising: the valve body is internally provided with a valve cavity penetrating through the whole valve body, the valve body is provided with an exhaust hole communicated with the valve cavity, a double joint, a sealing ring, an elastic plug, a first spring and a spring seat are sequentially arranged in the valve cavity from left to right, one end of the double joint is connected with the valve body, the large end of the sealing ring is contacted with the double joint, and the other end of the double joint is connected with other pipe fittings; the sealing ring corresponds to the exhaust hole; the right end of the elastic plug is sleeved in a first spring, and the first spring is arranged in the spring seat; an overpressure protection channel communicated with the valve cavity is arranged on the valve body corresponding to the elastic plug, a valve needle is arranged between the overpressure protection channel and the valve cavity, an adjusting spring is arranged at the upper end of the valve needle, and the upper end of the adjusting spring is sealed in the overpressure protection channel through a threaded spring cover; the exhaust hole is communicated with the overpressure protection channel; and an external pipeline sealing cover is also arranged at the top of the overpressure protection channel.

The safety valve further comprises a pressure stabilizing structure for stabilizing pressure, and the pressure stabilizing structure comprises: the valve comprises a pressure stabilizing valve body, a valve core, an adjusting spring and a spring cover; the valve is characterized in that a pressure stabilizing cavity is arranged in the pressure stabilizing valve body and is communicated with the valve cavity, the pressure stabilizing cavity is located right above the elastic plug, an adjusting spring is arranged on the valve core, the upper end of the adjusting spring is sealed in the pressure stabilizing cavity through a spring cover, the upper end of the spring cover and the inner wall of the pressure stabilizing cavity are sealed through a third sealing ring, and the upper end of the spring cover is pressed and fixed through an external pipeline sealing cover.

The safety valve is characterized in that the external pipeline sealing cover is fastened and fixed at the tops of the overpressure protection channel and the pressure stabilizing valve body in a fastening mode.

A relief valve, wherein, still install first sealing washer between external pipeline closing cap and steady voltage valve body and the excessive pressure protection passageway, the position that first sealing washer corresponds the excessive pressure protection passageway is equipped with the through-hole, the position that first sealing washer corresponds the steady voltage chamber of steady voltage valve body is equipped with the through-hole.

The safety valve is characterized in that the external pipeline sealing cover is arranged at the top of the overpressure protection channel in a buckling manner.

The safety valve is characterized in that the external pipeline sealing cover is provided with a buckling groove, and the outer wall surface of the overpressure protection channel is provided with a convex buckling block convenient to buckle.

The safety valve is characterized in that the lower end of the valve needle is also sleeved with a second sealing ring.

The safety valve is characterized in that the sealing ring is made of elastic silica gel or steam rubber.

The beneficial effects are that: the utility model mainly opens or closes the hole through the expansion and the expansion of the sealing ring under the condition that the water pump cannot pump water, and discharges gas or water-gas mixture, thereby guaranteeing the water pump to pump water normally. Secondly, because exhaust hole and overvoltage protection passageway intercommunication, so be equivalent to fusing the exhaust passageway of current relief valve in the overvoltage protection passageway to make the overall structure of valve body simpler, and then under the same circumstances of function, whole volume diminishes, makes simpler, and production efficiency also obtains promoting. Finally, the utility model can also be provided with a pressure stabilizing structure, so that the safety valve has a pressure stabilizing function.

Drawings

Fig. 1 is a perspective view of a first embodiment of the present utility model.

Fig. 2 is an exploded view of a first embodiment of the present utility model.

Fig. 3 is a cross-sectional view of a first embodiment of the present utility model.

Fig. 4 is a perspective view of a second embodiment of the present utility model.

Fig. 5 is an exploded view of a second embodiment of the present utility model.

Fig. 6 is a cross-sectional view of a second embodiment of the present utility model.

Description of the embodiments

In order to make the objects, technical solutions and advantages of the present utility model more clear and clear, the present utility model will be further described in detail below with reference to the accompanying drawings and examples.

As shown in fig. 1 to 6, the present utility model discloses a safety valve comprising: the valve body 3, the valve cavity 30 penetrating the whole valve body is arranged in the valve body 3, the valve body 3 is provided with an exhaust hole 31 communicated with the valve cavity 30, the valve cavity 30 is internally provided with a double joint 1, a sealing ring 2, an elastic plug 4, a spring I5 and a spring seat 6 in sequence from left to right, one end of the double joint 1 is connected with the valve body 3, the large end of the sealing ring 2 is contacted with the double joint 1, and the other end of the double joint 1 is connected with other pipe fittings; the sealing ring 2 corresponds to the exhaust hole 31; the right end of the elastic plug 4 is sleeved in a first spring 5, and the first spring 5 is arranged in a spring seat 6; an overpressure protection channel 32 communicated with the valve cavity 30 is arranged on the valve body 3 corresponding to the elastic plug 4, a valve needle 8 is arranged between the overpressure protection channel 32 and the valve cavity 30, an adjusting spring 9 is arranged at the upper end of the valve needle 8, and the upper end of the adjusting spring 9 is sealed in the overpressure protection channel 32 through a threaded spring cover 10; the exhaust hole 31 is communicated with the overpressure protection channel 32; the top of the overpressure protection channel 32 is also fitted with an external conduit cover 12.

Preferably, the seal ring 2 is a conical seal ring.

After the structure is adopted, the exhaust hole 31 is arranged through the valve cavity 30, the exhaust hole 31 corresponds to the sealing ring 2, and the exhaust hole 31 is arranged at one side of the bottom of the overpressure protection channel 32, so that the exhaust channel of the exhaust hole 31 and the overpressure protection channel 32 are combined together; so the whole structure of the valve body is simpler, and then under the condition of the same function, the whole volume is reduced, the manufacture is simpler, and the production efficiency is also improved.

The valve chamber 30 has a small hole A and a small hole B.

Working principle: when water flows in from the position A, the sealing ring 3 is expanded by generating pressure through the hole of the sealing ring 2, so that the exhaust hole is sealed, the elastic plug 4 is flushed by the water pressure, the elastic plug 4 compresses the spring I5, and water flows into a brewing pot of the coffee machine; when the water supply is stopped or the water and steam are mixed, the pressure at the position A is reduced, the sealing ring 2 is restored, the exhaust hole 31 is opened, and the water and steam mixture is discharged from the exhaust hole 31, so that the aim of exhausting air is fulfilled; pushing the elastic plug 4 open, and water flows out from the position B. Within the set pressure value, the valve needle 8 blocks the overpressure protection channel 32; when the pressure is overlarge, namely, the pressure is larger than the set elastic value of the regulating spring 9, the valve needle 8 moves upwards to open the pressure protection channel 32 to achieve the pressure relief purpose, the overpressure protection effect is achieved, the regulating spring 9 is arranged in the pressure protection channel 32 through the threaded spring cover 10, the compression amount of the regulating spring 9 can be regulated through the threaded spring cover 10, and the purpose of regulating the pressure is achieved.

In one embodiment, the voltage stabilizing structure 100 is further included for voltage stabilization, and the voltage stabilizing structure 100 includes: the pressure stabilizing valve body 101, the valve core 8, the regulating spring 9 and the spring cover 14; the pressure stabilizing valve body 101 is internally provided with a pressure stabilizing cavity 102, the pressure stabilizing cavity 102 is communicated with the valve cavity 30, the pressure stabilizing cavity 102 is located right above the elastic plug 4, the valve core 8 is provided with an adjusting spring 9, the upper end of the adjusting spring 9 is sealed in the pressure stabilizing cavity 102 through a spring cover 14, the upper end of the spring cover 14 is sealed with the inner wall of the pressure stabilizing cavity 102 through a third sealing ring 15, and the upper end of the spring cover 14 is pressed and fixed by an external pipeline sealing cover 12. The external pipe cover 12 is buckled on the outer wall surfaces of the pressure stabilizing valve body 101 and the overpressure protection channel 32.

After the structure is adopted, the pressure stabilizing cavity is arranged above the elastic plug, so that when the water tank of the coffee machine heats and infuses coffee, the pressure of the brewing pot is increased due to the filter screen of the brewing pot of the coffee machine, the pressure is reversely applied to the elastic plug, the elastic plug plugs the channel in the valve cavity, and the pressure is used for pushing the valve core in the pressure stabilizing valve body open, so that the pressure when the coffee is brewed is ensured, and the coffee can be prevented from dripping out when the brewing pot infuses coffee due to overlarge pressure. Therefore, the coffee machine not only has the function of stabilizing pressure, but also can prevent coffee from dripping out in the coffee brewing process.

In one embodiment, the external pipe cover 12 is fastened and fixed on the top of the overpressure protection channel 32 and the pressure stabilizing valve body 101 by means of a fastener, so that the external pipe cover is convenient to install, and can simultaneously block the overpressure protection channel and the pressure stabilizing valve body.

In one embodiment, a first sealing ring 11 is further installed between the external pipeline sealing cover 12 and the pressure stabilizing valve body 101 and the overpressure protecting channel 32, a through hole is formed at a position of the first sealing ring 11 corresponding to the overpressure protecting channel, and a through hole is formed at a position of the first sealing ring 11 corresponding to the pressure stabilizing cavity 102 of the pressure stabilizing valve body 101; therefore, the pressure stabilizing valve body can be ensured not to leak through the sealing flat plate, and the pressure during brewing coffee is ensured.

In one embodiment, the external conduit cover 12 is snap-fit on top of the overpressure protection channel.

In one embodiment, the external pipe cover 12 is provided with a buckling groove 120, and the outer wall surface of the overpressure protection channel 32 is provided with a convex buckling block 13 which is convenient to buckle.

In one embodiment, the lower end of the valve needle 8 is further sleeved with a second sealing ring 7, so that water flows into the overpressure protection channel 32 and the pressure stabilizing cavity 102 when the water pump pumps water.

In one embodiment, the sealing ring 2 is made of elastic silica gel or steam rubber.

The utility model mainly opens or closes the hole through the expansion and the expansion of the sealing ring under the condition that the water pump cannot pump water, and discharges gas or water-gas mixture, thereby guaranteeing the water pump to pump water normally. Secondly, because exhaust hole and overvoltage protection passageway intercommunication, so be equivalent to fusing the exhaust passageway of current relief valve in the overvoltage protection passageway to make the overall structure of valve body simpler, and then under the same circumstances of function, whole volume diminishes, makes simpler, and production efficiency also obtains promoting. Finally, the utility model can also be provided with a pressure stabilizing structure, so that the safety valve has a pressure stabilizing function.

The valve disclosed by the utility model is free from water leakage, easy to reset and reliable in performance, has an evacuation function, an overpressure protection function, adjustable in pressure of overpressure protection and a pressure stabilizing function.

The foregoing is illustrative of the preferred embodiments of the present utility model, and it is not intended to limit the scope of the claims herein, but it should be noted that modifications and equivalents of the inventive arrangements can be made by those skilled in the art without departing from the scope of the utility model.

Claims

1. A safety valve, comprising: the valve body is internally provided with a valve cavity penetrating through the whole valve body, the valve body is provided with an exhaust hole communicated with the valve cavity, a double joint, a sealing ring, an elastic plug, a first spring and a spring seat are sequentially arranged in the valve cavity from left to right, one end of the double joint is connected with the valve body, the large end of the sealing ring is contacted with the double joint, and the other end of the double joint is connected with other pipe fittings; the sealing ring corresponds to the exhaust hole; the right end of the elastic plug is sleeved in a first spring, and the first spring is arranged in the spring seat; an overpressure protection channel communicated with the valve cavity is arranged on the valve body corresponding to the elastic plug, a valve needle is arranged between the overpressure protection channel and the valve cavity, an adjusting spring is arranged at the upper end of the valve needle, and the upper end of the adjusting spring is sealed in the overpressure protection channel through a threaded spring cover; the exhaust hole is communicated with the overpressure protection channel; and an external pipeline sealing cover is also arranged at the top of the overpressure protection channel.

2. The safety valve according to claim 1, further comprising a pressure stabilizing structure for stabilizing pressure, the pressure stabilizing structure comprising: the valve comprises a pressure stabilizing valve body, a valve core, an adjusting spring and a spring cover; the valve is characterized in that a pressure stabilizing cavity is arranged in the pressure stabilizing valve body and is communicated with the valve cavity, the pressure stabilizing cavity is located right above the elastic plug, an adjusting spring is arranged on the valve core, the upper end of the adjusting spring is sealed in the pressure stabilizing cavity through a spring cover, the upper end of the spring cover and the inner wall of the pressure stabilizing cavity are sealed through a third sealing ring, and the upper end of the spring cover is pressed and fixed through an external pipeline sealing cover.

3. The safety valve according to claim 2, wherein the external pipeline sealing cover is fastened to the top of the overpressure protection channel and the pressure stabilizing valve body by means of a fastener.

4. A safety valve according to claim 3, wherein a first sealing ring is further installed between the external pipeline sealing cover and the pressure stabilizing valve body and the overpressure protecting channel, a through hole is formed in the position, corresponding to the overpressure protecting channel, of the first sealing ring, and a through hole is formed in the position, corresponding to the pressure stabilizing cavity of the pressure stabilizing valve body, of the first sealing ring.

5. A safety valve according to claim 1, wherein the external conduit cover is mounted on top of the overpressure protection channel by means of a snap-fit.

6. The safety valve according to claim 5, wherein the external pipeline cover is provided with a buckling groove, and the outer wall surface of the overpressure protection channel is provided with a convex buckling block which is convenient to buckle.

7. A safety valve according to any one of claims 1 and 2, wherein the lower end of the valve needle is further provided with a second sealing ring.

8. A safety valve according to claim 1, wherein the sealing ring is made of elastic silica gel or vapour rubber.