CN215568235U

CN215568235U - Electric water heater safety valve with better pressure-bearing effect

Info

Publication number: CN215568235U
Application number: CN202120857135.5U
Authority: CN
Inventors: 骆火生
Original assignee: Foshan Shunde Kangqin Hardware Products Co ltd
Current assignee: Foshan Shunde Kangqin Hardware Products Co ltd
Priority date: 2021-04-23
Filing date: 2021-04-23
Publication date: 2022-01-18
Anticipated expiration: 2031-04-23

Abstract

An electric water heater safety valve with better pressure-bearing effect comprises a valve body; the valve body comprises a water inlet part and a pressure relief part; the pressure relief part is transversely arranged on one side of the water inlet part and communicated with the water inlet part; the water inlet part is made of stainless steel materials and can bear a larger pressure value; the water inlet part comprises a water inlet cavity, a one-way water inlet valve for movably sealing the water inlet cavity and an elastic reset component for supporting the one-way water inlet valve to reset; the pressure relief part comprises a pressure relief cavity and a manual pressure relief handle for movably sealing the pressure relief cavity, and a first return spring and sealing assemblies which are matched and abutted against two ends of the first return spring are arranged in the pressure relief cavity; the lower extreme in pressure release chamber still is equipped with the pressure release hole with the atmosphere intercommunication, and this product structure sets up rationally, and what the portion of intaking that just has stainless steel material to make can bear bigger pressure than what ordinary material made on the market, effective increase of service life.

Description

Electric water heater safety valve with better pressure-bearing effect

Technical Field

The utility model relates to the field of water heaters, in particular to a safety valve of an electric water heater, which has a better pressure-bearing effect.

Background

The safety valve of the existing electric water heater has the advantages of unreasonable structural design, insufficient pressure bearing capacity, easy occurrence of phenomena of cracking, rusting and the like in use, potential safety hazard, complex structure and high production cost.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a safety valve of an electric water heater with better pressure bearing effect so as to solve the defects in the prior art.

In order to solve the technical problems, the technical scheme of the utility model is as follows:

an electric water heater safety valve with better pressure-bearing effect comprises a valve body; the valve body comprises a water inlet part and a pressure relief part; the pressure relief part is transversely arranged on one side of the water inlet part and communicated with the water inlet part;

the water inlet part is made of stainless steel materials and can bear a larger pressure value; the water inlet part comprises a water inlet cavity, a one-way water inlet valve for movably sealing the water inlet cavity and an elastic reset component for supporting the one-way water inlet valve to reset; the pressure relief part comprises a pressure relief cavity and a manual pressure relief handle for movably sealing the pressure relief cavity, and a first return spring and sealing assemblies which are matched and abutted against two ends of the first return spring are arranged in the pressure relief cavity;

the manual pressure relief handle comprises a handle and a pull rod, the handle is positioned on the outer side of the pressure relief cavity, the pull rod is positioned in the pressure relief cavity, and one end of the pull rod penetrates through the pressure relief cavity to be movably connected with the handle; the other end of the pull rod is connected with the sealing component, and the pull rod drives the sealing component to move left and right along with the lifting or putting down of the pull handle, so that the pressure relief cavity is opened or closed; the lower end of the pressure relief cavity is also provided with a pressure relief hole communicated with the atmosphere.

Furthermore, a water inlet is formed in the upper end of the water inlet cavity, a water outlet is formed in the lower end of the water inlet cavity, and the water inlet and the water outlet are communicated in a controlled mode through a one-way water inlet valve; and a through hole communicated with the pressure relief cavity is formed in the side wall of the water inlet cavity corresponding to the pressure relief cavity.

Furthermore, the one-way water inlet valve comprises a movable rod, an adjusting cap positioned at the upper end of the movable rod and a rubber cap positioned below the movable rod;

the adjusting cap is opened upwards, the upper edge of the adjusting cap is abutted to the lower side of the water inlet, the rubber cap is abutted to the upper side of the water outlet, a first mounting opening and a second mounting opening are formed in the positions, corresponding to the movable rod, of the adjusting cap and the rubber cap respectively, and two ends of the movable rod penetrate through the first mounting opening and the second mounting opening respectively for mounting. And the movable rod drives the adjusting cap to coaxially move downwards.

Furthermore, a first limiting ring protruding outwards is arranged above the movable rod, a second limiting ring is arranged at the position close to the waist, and a third limiting ring is arranged at the bottom of the movable rod; the outer diameter of the first limiting ring is larger than the inner diameter of the first mounting opening, and the first limiting ring is used for driving the adjusting cap to move downwards; the outer diameter of the second limiting ring is larger than the inner diameter of the second mounting opening, and the second limiting ring is used for limiting the downward moving range of the movable rod; the third limiting ring is located below the rubber cap and used for being matched with the rubber cap to seal the water outlet.

Further, the elastic reset component comprises a second reset spring and a third reset spring; two ends of the second return spring are abutted against the adjusting cap and the rubber cap; the third return spring is sleeved outside the lower part of the movable rod.

Furthermore, the upper portion of the handle is rotatably connected with the pull rod, a positioning column protruding outwards is further arranged at the position close to the lower portion of the handle, the positioning column is arranged at one side close to the pressure relief cavity, and a positioning hole matched with the positioning column is formed in the position, corresponding to the positioning column, of the pressure relief cavity.

Furthermore, the adjusting cap is provided with a plurality of water outlets for discharging water on the circumferential outer wall in an equal way.

Further, one end of the sealing component is movably sealed on the through hole.

Compared with the prior art, the utility model has the beneficial effects that: this product structure sets up rationally, and what the portion of intaking that just has stainless steel material to make can bear bigger pressure than what ordinary material made on the market, effective increase of service life.

Drawings

Fig. 1 is a front sectional view of a safety valve according to an embodiment of the present invention when not operating.

Fig. 2 is a front sectional view of the relief portion of the embodiment of the present invention when opened.

Fig. 3 is a front sectional view of the water inlet part of the embodiment of the utility model when water is fed.

Fig. 4 is an exploded view of the overall structure of an embodiment of the present invention.

FIG. 5 is an exploded view of a one-way fill valve in accordance with an embodiment of the present invention.

Fig. 6 is a perspective view of the overall structure of the embodiment of the present invention.

In the figure: the valve comprises a valve body 1, a water inlet part 2, a water inlet cavity 3, a water inlet 31, a water outlet 32, a through hole 33, a one-way water inlet valve 4, an adjusting cap 41, a first mounting port 411, a water outlet 412, a movable rod 42, a first limit ring 421, a second limit ring 422, a third limit ring 423, a rubber cap 43, a second mounting port 431, an elastic reset part 5, a second reset spring 51, a third reset spring 52, a pressure relief part 6, a pressure relief cavity 7, a sealing component 71, a first sealant 711, a second sealant 712, a first reset spring 72, a pressure relief hole 73, a positioning hole 74, a manual pressure relief handle 8, a handle 81, a pull rod 82, a sealing plug 83 and a positioning column 84.

Detailed Description

The present invention is described in further detail below with reference to the attached drawing figures.

As shown in fig. 4 and 6, the safety valve of the electric water heater with better pressure bearing effect comprises a valve body 1; the valve body 1 comprises a water inlet part 2 and a pressure relief part 6; the pressure relief part 6 is transversely arranged on one side of the water inlet part 2, a through hole 33 is formed between the water inlet part 2 and the pressure relief part 6, and the water inlet part 2 and the pressure relief part 6 are communicated with each other through the through hole 33.

The water inlet part 2 is made of stainless steel materials, can bear larger pressure value than a safety valve made of common materials, such as steel, iron and the like, is not easy to crack and has longer service life; according to the experimental data, the pressure value which can be borne by the water inlet part 2 is 0-0.07 MPa. The water inlet part 2 comprises a water inlet cavity 3, a one-way water inlet valve 4 for movably sealing the water inlet cavity 3 and an elastic reset part 5 for supporting the one-way water inlet valve 4 to reset;

as shown in fig. 1-4, further, the upper end of the water inlet cavity 3 is provided with a water inlet 31, the lower end is provided with a water outlet 32, the water inlet 31 is communicated with the hot water end of the water heater, and the water outlet 32 is communicated with a user end; the water inlet cavity 3 is controlled to be opened or closed through a one-way water inlet valve 4; when hot water enters the water inlet cavity 3, the one-way water inlet valve 4 moves downwards under the gravity or pressure of water flow, at the moment, the originally closed water outlet 32 is opened, and the hot water flows out of the water outlet 32 to a user side.

As shown in fig. 5, further, the one-way water inlet valve 4 comprises a movable rod 42, an adjusting cap 41 connected to the upper end of the movable rod 42, and a rubber cap 43 connected to the lower portion of the movable rod 42; a plurality of auxiliary launching nozzles 412 are uniformly arranged on the circumferential outer wall of the adjusting cap 41.

As shown in fig. 3 and 5, the adjusting cap 41 is opened upward, an upper edge of the adjusting cap is abutted to a lower side of the water inlet 31, the rubber cap 43 is abutted to an upper side of the water outlet 32, a first mounting opening 411 and a second mounting opening 431 are respectively formed in a side of the adjusting cap 41 opposite to the rubber cap 43, and two ends of the movable rod 42 are respectively connected and mounted with the adjusting cap 41 and the rubber cap 43 through the first mounting opening 411 and the second mounting opening 431. When hot water enters the water inlet cavity 3, the movable rod 42 drives the adjusting cap 41 to coaxially move downwards, so that the water inlet 31 is communicated with the water outlet 32, and the hot water flows out of the water outlet 32 to the user end.

Further, the movable rod 42 is in a shape with a narrow top and a wide bottom, a first limit ring 421 protruding outwards is arranged near the top, a second limit ring 422 is arranged near the waist, and a third limit ring 423 is arranged at the bottom; the outer diameter of the first limiting ring 421 is larger than the inner diameter of the first mounting opening 411, when hot water enters the water inlet cavity 3, the movable rod 42 moves downward under pressure or gravity, the first limiting ring 421 is clamped on the first mounting opening 411 and drives the adjusting cap 41 to move coaxially downward, so that the water inlet 31 is completely opened, and water flow can rapidly flow into the water inlet cavity 3;

the outer diameter of the second limiting ring 422 is larger than the inner diameter of the second mounting opening 431, and when the movable rod 42 moves downwards, the second limiting ring 422 is used for limiting the downward movement range of the movable rod 42 and preventing the movable rod 42 from falling off from the second mounting opening 431;

the third limiting ring 423 is disposed at the lower end of the movable rod 42 and below the rubber cap 43, when the unidirectional water inlet valve 4 is not subjected to gravity or pressure, the movable rod 42 does not move downward, and at this time, the third limiting ring 421 is sealed below the rubber cap 43 and seals the water outlet 32 with the rubber cap 43.

Further, the elastic return means 5 comprises a second return spring 51 and a third return spring 52; the two ends of the second return spring 51 are abutted against the adjusting cap 41 and the rubber cap 43, when no water flows in, the second return spring 51 supports the adjusting cap 41 and the rubber cap 43 to extend in opposite directions and abut against the water inlet 31 and the water outlet 32 respectively, when water flows in from the water inlet 31, the adjusting cap 41 compresses the second return spring 51 downwards when the adjusting cap 41 receives downward gravity or pressure, so that the water inlet 31 is completely opened, the water flow entering speed is increased, and when the water flow stops flowing in, the second return spring 51 pushes the adjusting cap 41 to return to the original state; third reset spring 52 hugs closely the overcoat and is in the movable rod 42 by the below, makes second spacing ring 422 joint in third reset spring 52, when the rivers enter, movable rod 42 downstream makes delivery port 32 open, at this moment, third reset spring 52 joint is in second spacing ring 422 and upwards supports movable rod 42 makes it not drop down along with the rivers, when no rivers enter, third reset spring 52 upwards promotes movable rod 42 makes it reset.

As shown in fig. 1 and 2, the pressure relief portion 6 includes a pressure relief cavity 7 and a manual pressure relief handle 8 for movably sealing the pressure relief cavity 7, and a pressure relief hole 73 communicated with the atmosphere is further formed at the lower end of the pressure relief cavity 7; a first return spring 72 and a sealing assembly 71 which is matched and abutted to two ends of the first return spring 72 are matched and mounted in the pressure relief cavity 7; the sealing assembly 71 comprises a first sealing glue 711 and a second sealing glue 712, the first sealing glue 711 and the second sealing glue 72 are respectively abutted to the left end and the right end of the inner wall of the pressure relief cavity 7, and the second sealing glue 712 is used for being matched with the manual pressure relief handle 8 to movably seal the through hole 33.

The manual pressure relief handle 8 comprises a handle 81 and a pull rod 82, the handle 81 is located on the outer side of the pressure relief cavity 7, one end of the pull rod 82 is movably connected with the handle 81, and the other end of the pull rod 82 penetrates through the pressure relief cavity 7 and is fixedly connected with the second sealant 712. When the user lifts the handle 81 upwards, the pull rod 82 moves towards the handle 81, at this time, the pressure relief cavity 7 is communicated with the water inlet cavity 3, and the pressure in the water inlet cavity 3 is discharged to the atmosphere from the pressure relief hole 73 through the through hole 33. When the user operates the handle 81 downwards, the pull rod 82 moves along with the handle in the direction of the water inlet cavity 3, and at the moment, the pull rod 82 pushes the second sealant 712 to abut against the through hole 33, so that the second sealant is sealed.

Further, in order to achieve the effect of manual operation and control, the handle 81 and one end connected with the pull rod 82 are in a round corner square shape, so that a user can conveniently lift or put down the handle 81 and after lifting or putting down, the handle 81 can keep the state.

Further, the position by the below still is equipped with outside convex reference column 84, reference column 84 is established and is close to one side of pressure release chamber 7, pressure release chamber 7 corresponds the position of reference column 84 be equipped with the locating hole 74 of reference column 84 adaptation, when the user puts down during handle 81, reference column 84 adaptation is installed in the locating hole 74, make it can keep this state, avoid the mistake to touch the mistake and open pressure release chamber 7 by the mistake.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The safety valve of the electric water heater with better pressure bearing effect is characterized by comprising a valve body (1); the valve body (1) comprises a water inlet part (2) and a pressure relief part (6); the pressure relief part (6) is transversely arranged on one side of the water inlet part (2) and communicated with the water inlet part;

the water inlet part (2) is made of stainless steel materials and can bear a larger pressure value; the water inlet part (2) comprises a water inlet cavity (3), a one-way water inlet valve (4) for movably sealing the water inlet cavity (3) and an elastic reset part (5) for supporting the one-way water inlet valve (4) to reset; the pressure relief part (6) comprises a pressure relief cavity (7) and a manual pressure relief handle (8) for movably sealing the pressure relief cavity (7), and a first return spring (72) and sealing assemblies (71) which are matched and abutted to two ends of the first return spring (72) are arranged in the pressure relief cavity (7); the lower end of the pressure relief cavity (7) is also provided with a pressure relief hole (73) communicated with the atmosphere.

2. The safety valve of the electric water heater according to claim 1, characterized in that the manual pressure relief handle (8) comprises a handle (81) and a pull rod (82), the handle (81) is located outside the pressure relief cavity (7), the pull rod (82) is located in the pressure relief cavity (7) and one end of the pull rod passes through the pressure relief cavity (7) and is movably connected with the handle (81); the other end of the pull rod (82) is connected with the sealing component (71), and the pull rod (82) drives the sealing component (71) to move left and right along with the lifting or the lowering of the handle (81), so that the pressure relief cavity (7) is opened or closed.

3. The safety valve of the electric water heater according to claim 1, characterized in that the upper end of the water inlet cavity (3) is provided with a water inlet (31), the lower end is provided with a water outlet (32), and the water inlet (31) and the water outlet (32) are in control communication through a one-way water inlet valve (4); and a through hole (33) communicated with the pressure relief cavity (7) is arranged on the side wall of the water inlet cavity (3) corresponding to the pressure relief cavity (7).

4. The safety valve of electric water heater according to claim 3, characterized in that the one-way water inlet valve (4) comprises a movable rod (42), an adjusting cap (41) at the upper end of the movable rod (42), and a rubber cap (43) at the lower part of the movable rod (42);

adjust cap (41) upwards opening and go up the border butt and be in the below of water inlet (31), rubber cap (43) butt is in the top of delivery port (32), just adjust cap (41) with first installing port (411) and second installing port (431) have been seted up respectively on the position that rubber cap (43) correspond movable rod (42), the both ends of movable rod (42) pass respectively first installing port (411) and second installing port (431) installation, just movable rod (42) drive adjust the coaxial downstream of cap (41).

5. The safety valve of the electric water heater according to claim 4, characterized in that a first limiting ring (421) protruding outwards is arranged near the upper part of the movable rod (42), a second limiting ring (422) is arranged near the waist part, and a third limiting ring (423) is arranged at the bottom part; the outer diameter of the first limiting ring (421) is larger than the inner diameter of the first mounting opening (411) and is used for driving the adjusting cap (41) to move downwards; the outer diameter of the second limiting ring (422) is larger than the inner diameter of the second mounting opening (431) and is used for limiting the downward moving range of the movable rod (42); the third limiting ring (423) is positioned below the rubber cap (43) and is used for being matched with the rubber cap (43) to seal the water outlet (32).

6. Safety valve according to claim 4, characterized in that said elastic return means (5) comprise a second return spring (51) and a third return spring (52); two ends of the second return spring (51) are abutted against the adjusting cap (41) and the rubber cap (43); the third return spring (52) is sleeved on the lower portion of the movable rod (42).

7. The safety valve of the electric water heater as claimed in claim 2, wherein the pull handle (81) is rotatably connected to the pull rod (82) at an upper portion, and a positioning post (84) protruding outwards is further provided at a lower portion, the positioning post (84) is provided at a side close to the pressure release chamber (7), and the pressure release chamber (7) is provided with a positioning hole (74) adapted to the positioning post (84) at a position corresponding to the positioning post (84).

8. Safety valve according to claim 4, characterized in that the adjusting cap (41) has several drainage openings (412) for drainage on the circumferential outer wall.

9. Safety valve according to claim 3, characterized in that one end of said sealing assembly (71) is movably sealed on said through hole (33).