CN214743578U

CN214743578U - Corrosion-proof safety valve

Info

Publication number: CN214743578U
Application number: CN202120329758.5U
Authority: CN
Inventors: 陈海峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2021-11-16
Anticipated expiration: 2031-02-04

Abstract

The utility model provides an anticorrosive relief valve, includes the valve body, is equipped with water inlet, intake antrum, delivery port and pressure release chamber on the valve body, and water inlet, intake antrum and delivery port communicate in proper order, and the intake antrum communicates with pressure release chamber, and the position that the lower extreme of valve body corresponds the water inlet is equipped with the external screw thread that is used for connecting the water pipe, installs the gland on the delivery port, is equipped with first sealing washer between the lateral wall of gland and delivery port, is provided with the mold insert between intake antrum and the pressure release chamber. The utility model discloses a set up the external screw thread at the relief valve lower extreme, original internal thread counter bore has been replaced, make the volume of relief valve littleer, the material of production relief valve has been reduced, simultaneously cancel the original nut of installing at internal thread counter bore inner wall, install the gland on the relief valve, set up the sealing washer between gland and valve body, can not only improve the leakproofness of relief valve delivery port department, and let relief valve lower extreme external screw thread more can stand torsion and constantly, reduce after-sale service, set up the mold insert between intake antrum and the pressure release chamber, the corrosion protection nature of relief valve has been improved.

Description

Corrosion-proof safety valve

Technical Field

The utility model particularly relates to an anticorrosive relief valve.

Background

Chinese patent document No. CN209012497U discloses a novel safety valve of an electric water heater in 2019, 6.21.2019, which comprises a valve body, wherein the valve body is provided with a water inlet cavity and a pressure relief cavity, the water inlet cavity is communicated with the pressure relief cavity, a pressure relief valve is arranged in the pressure relief cavity, the pressure relief valve comprises a cylinder body, a piston, a cylinder body fixing member, a return spring, a pressure regulating cap and a handle, the cylinder body is in sliding seal with the piston, a water outlet is arranged on the cylinder body, the cylinder body fixing member is arranged at the tail end of the cylinder body, and the piston is connected with the handle at the tail end of the pressure relief cavity after sequentially passing through the return spring and the pressure regulating cap. The water outlet of the safety valve of the water heater is poor in sealing performance and may leak water, the water inlet at the bottom of the safety valve is of an internal thread counter bore structure, the whole volume of the safety valve is large, materials and cost are increased, meanwhile, the safety valve is generally made of copper materials, and corrosion resistance is general.

Therefore, further improvements are needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a simple structure, sealing performance are good, with low costs, corrosion-resistant, the anticorrosive relief valve that the practicality is strong to overcome the weak point among the prior art.

According to the anticorrosive relief valve of this purpose design, including the valve body, its characterized in that: the water inlet, the water inlet cavity, the water outlet and the water outlet are sequentially communicated, the water inlet cavity is communicated with the pressure relief cavity, an external thread used for being connected with a water pipe is arranged at the position, corresponding to the water inlet, of the lower end of the valve body, a gland is installed on the water outlet, a first sealing ring is arranged between the gland and the side wall of the water outlet, and a mold insert is arranged between the water inlet cavity and the pressure relief cavity.

The utility model discloses a valve body, including the valve body, the guide ring is pressed to the bottom of gland, the water inlet assembly is equipped with the inlet assembly in the intake antrum, the inlet assembly includes the case of intaking, the valve barrel, interior pressure regulating spring that lets out, pressure release valve rod and first packing ring, the valve barrel spiro union is on the pressure release valve rod, the bottom that is located the gland in the intake intracavity is equipped with the guide ring, the guide ring is sticis to the bottom of gland, be connected with the spring of intaking between case and the guide ring, spring one end elastic action of intaking is on the guide ring, other end elastic action is on the case of intaking, the subassembly of intaking is reset motion relative to the valve body under the spring action of the spring of intaking, with elasticity closed intake antrum.

The water inlet valve core is provided with an inner relief hole communicated with the water inlet, the relief valve rod penetrates through the inner relief hole in a sliding mode, one end of the relief valve rod is provided with a relief head, and the first gasket is arranged between the relief head and the water inlet valve core; one end of the internal pressure relief and regulation spring elastically acts on the valve sleeve, and the other end elastically acts on the water inlet valve core; the pressure relief valve rod performs reset motion relative to the valve body under the elastic action of the inner pressure relief and regulation spring, so that the first gasket seals the inner pressure relief hole, and the water inlet cavity are further cut off.

The pressure release valve rod passes the guide ring, is equipped with the limbers on the guide ring, and the delivery port loops through the through-hole of gland, limbers and intake antrum intercommunication, and the top week side of guide ring outwards extends, forms the chimb, and the spring action of water spring one end is on the chimb.

The bottom periphery of the water inlet valve core is provided with a plurality of protrusions distributed in an annular mode, a water through opening is formed between the protrusions, and when the water inlet assembly moves upwards, the water inlet is communicated with the water inlet cavity through the water through opening.

The pressure relief assembly is arranged in the pressure relief cavity and comprises a pressure relief pull rod, a pressure relief valve core, a first gasket and a second gasket, an outer pressure relief pressure regulating spring and a pressure regulating wall nut are sleeved on the periphery of the pressure relief pull rod, one end of the outer pressure relief pressure regulating spring elastically acts on the pressure relief valve core, the other end of the outer pressure relief pressure regulating spring elastically acts on the pressure regulating wall nut, and the pressure relief pull rod performs reset motion relative to the valve body under the elastic action of the outer pressure relief pressure regulating spring so as to regulate the medium pressure in the valve body; the bottom of the pressure relief cavity is provided with a pressure relief opening.

A pressure relief channel is arranged between the water inlet cavity and the pressure relief cavity, the insert is clamped on the pressure relief channel, the first gasket and the second gasket are arranged between the pressure relief valve core and the insert, and one end of the insert, facing the pressure relief cavity, is tightly pressed on the first gasket; the insert is made of stainless steel material.

One end of the pressure relief cavity is provided with a water sealing cover, one side of the water sealing cover is provided with a handle, and the pressure relief pull rod penetrates through the water sealing cover and then is connected with the handle through a clamping piece; a second sealing ring is arranged between the water sealing cover and the valve body, a third sealing ring is arranged between the pressure relief pull rod and the water sealing cover, and a medium finger is arranged between the water sealing cover and the handle.

The top cover of gland is equipped with the second packing ring, and the second packing ring is located between the top of gland and the lateral wall of delivery port.

The utility model discloses a lower extreme at the relief valve sets up the external screw thread, original internal thread counter bore has been replaced, make the volume of relief valve littleer, the materials of production relief valve have been reduced, the manufacturing cost of relief valve has been reduced, cancel the nut of installing originally at internal thread counter bore inner wall simultaneously, install the gland on the relief valve, set up the sealing washer between the lateral wall of gland and delivery port, can not only improve the leakproofness of relief valve delivery port department, and let the external screw thread of relief valve lower extreme more can stand torsion and constantly, reduce after-sales service, set up the stainless steel mold insert between intake antrum and the pressure release chamber, the corrosion protection nature of relief valve has been improved.

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 according to an embodiment of the present invention.

Fig. 3 is a schematic view of the overall structure of the safety valve according to an embodiment of the present invention.

Fig. 4 is a schematic view of an overall structure of the guide ring according to an embodiment of the present invention.

Fig. 5 is a schematic view of an overall structure of the water inlet valve core according to an embodiment of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

Referring to fig. 1-5, the anticorrosion safety valve comprises a valve body 1, wherein a water inlet 1.1, a water inlet cavity 1.2, a water outlet 1.3 and a pressure relief cavity 1.4 are arranged on the valve body 1, the water inlet 1.1, the water inlet cavity 1.2 and the water outlet 1.3 are sequentially communicated, the water inlet cavity 1.2 is communicated with the pressure relief cavity 1.4, an external thread 1.5 for connecting a water pipe is arranged at the position of the lower end of the valve body 1 corresponding to the water inlet 1.1, an internal thread for connecting water-consuming equipment (such as a water heater, a water dispenser, a wall-mounted furnace, floor heating equipment and the like) is arranged on the water outlet 1.3, a gland 2 is arranged on the water outlet 1.3, a first sealing ring 3 is arranged between the gland 2 and the side wall of the water outlet 1.3, the sealing performance of the water outlet 1.3 can be improved, and an insert 4 is arranged between the water inlet cavity 1.2 and the pressure relief cavity 1.4,

be equipped with into water subassembly an in intake antrum 1.2, it includes water inlet valve core 5 to advance water subassembly a, valve barrel 6, interior pressure regulating spring 7 that lets out, pressure release valve rod 8 and first packing ring 9, first packing ring 9 is made by silica gel material, valve barrel 6 spiro union is on pressure release valve rod 8, the bottom that lies in gland 2 in intake antrum 1.2 is equipped with guide ring 10, gland 2's bottom sticiss guide ring 10, be connected with into water spring 11 between water inlet valve core 5 and the guide ring 10, into water spring 11 one end elastic action on guide ring 10, other end elastic action is on water inlet valve core 5, it makes the motion that resets to water subassembly a relative valve body 1 under the elastic action of spring 11 that intakes, with elastic seal intake antrum 1.2. The water inlet component a can effectively prevent water in the valve body 1 from flowing backwards in normal use.

An inner relief hole 5.1 communicated with the water inlet 1.1 is formed in the water inlet valve core 5, a relief valve rod 8 penetrates through the inner relief hole 5.1 in a sliding mode, a relief head 8.1 is arranged at one end of the relief valve rod 8, and a first gasket 9 is arranged between the relief head 8.1 and the water inlet valve core 5; one end of the internal pressure relief and regulation spring 7 elastically acts on the valve sleeve 6, and the other end elastically acts on the water inlet valve core 5; the pressure relief valve rod 8 performs reset motion relative to the valve body 1 under the elastic force action of the inner pressure relief and regulation spring 7, so that the first gasket 9 seals the inner pressure relief hole 5.1, and the water inlet 1.1 and the water inlet cavity 1.2 are further cut off. The function of the valve housing 6: when the pressure relief valve rod 8 moves to a certain position, the pressure relief head 8.1 opens the inner pressure relief hole 5.1, and at the moment, the valve sleeve 6 acts on the water inlet valve core 5 in a limiting way, so that the pressure relief valve rod 8 cannot continuously slide downwards, and the maximum stroke of the pressure relief valve rod 8 can be effectively controlled; when the interior of the valve body 1 is in a negative pressure state, the pressure relief head 8.1 on the pressure relief valve rod 8 opens the inner pressure relief hole 5.1 to realize inner pressure relief.

The pressure relief valve rod 8 penetrates through the guide ring 10, a water through hole 10.1 is formed in the guide ring 10, the water outlet 1.3 is communicated with the water inlet cavity 1.2 sequentially through the through hole and the water through hole 10.1 of the gland 2, the peripheral side of the top of the guide ring 10 extends outwards to form a convex edge 10.2, and one end of the water inlet spring 11 acts on the convex edge 10.2 in an elastic mode.

The bottom periphery of the water inlet valve core 5 is provided with a plurality of annularly distributed bulges 5.2, water openings 5.3 are formed between the bulges 5.2, when the water inlet component a moves upwards, the water inlet 1.1 is communicated with the water inlet cavity 1.2 through the water openings 5.3, and specifically, when the water inlet component a moves upwards, water sequentially enters the water inlet cavity 1.2 from the gap between the first gasket 9 and the valve body 1 and the water openings 5.3.

A pressure relief assembly b is arranged in the pressure relief cavity 1.4 and comprises a pressure relief pull rod 12, a pressure relief valve core 13, a first gasket 14 and a second gasket 15, the first gasket 14 is made of a silica gel material, an outer pressure relief pressure regulating spring 16 and a pressure regulating wall nut 17 are sleeved on the periphery of the pressure relief pull rod 12, one end of the pressure relief pressure regulating spring 16 elastically acts on the pressure relief valve core 13, the other end of the pressure relief pressure regulating spring elastically acts on the pressure regulating wall nut 17, and the pressure relief pull rod 12 performs reset motion relative to the valve body 1 under the elastic force action of the pressure relief pressure regulating spring 16 so as to regulate the medium pressure in the valve body 1; the bottom of the pressure relief cavity 1.4 is provided with a pressure relief opening 1.6.

A pressure relief channel 1.7 is arranged between the water inlet cavity 1.2 and the pressure relief cavity 1.4, the insert 4 is clamped on the pressure relief channel 1.7, a first gasket 14 and a second gasket 15 are arranged between the pressure relief valve core 13 and the insert 4, and one end of the insert 4 facing the pressure relief cavity 1.4 is tightly pressed on the first gasket 14; insert 4 is made by stainless steel material, has fine corrosion resistance, valve body 1 is made by the copper material, different area water quality differs, the corrosivity of some local waters is stronger, add the water flow and erode, can corrode the copper main part, set up stainless steel insert 4 on pressure release passageway 1.7, can prevent that water from corroding the copper material on pressure release passageway 1.7 and leading to the relief valve under the normal condition of water pressure gap entering pressure release chamber 1.4 between water pressure release passageway 1.7 lateral wall and the first gasket 14, cause the relief valve inefficacy.

One end of the pressure relief cavity 1.4 is provided with a water sealing cover 18, one side of the water sealing cover 18 is provided with a handle 19, the pressure relief pull rod 12 penetrates through the water sealing cover 18 and then is connected with the handle 19 through a clamping piece 20, and the handle 19 is fixed on the valve body 1 through a screw 25; a second sealing ring 21 is arranged between the water sealing cover 18 and the valve body 1, a third sealing ring 22 is arranged between the pressure relief pull rod 12 and the water sealing cover 18, and a medium finger 23 is arranged between the water sealing cover 18 and the handle 19. When equipment container internal pressure exceeded certain definite value, internal pressure can be opened pressure relief subassembly b, along with pressure relief subassembly b's removal (pressure relief subassembly b removes toward handle 19), intake antrum 1.2 and pressure relief chamber 1.4 intercommunication this moment, and water can be followed pressure relief mouth 1.6 and discharged to thereby reduce container internal pressure and play the guard action.

The top of gland 2 is equipped with second packing ring 24, and second packing ring 24 is located between the top of gland 2 and the lateral wall of delivery port 1.3.

The foregoing is a preferred embodiment of the present invention showing and describing the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and the scope of the invention is to be protected. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an anticorrosive relief valve, includes valve body (1), its characterized in that: be equipped with water inlet (1.1) on valve body (1), intake antrum (1.2), delivery port (1.3) and pressure release chamber (1.4), water inlet (1.1), intake antrum (1.2) and delivery port (1.3) communicate in proper order, intake antrum (1.2) and pressure release chamber (1.4) intercommunication, the position that the lower extreme of valve body (1) corresponds water inlet (1.1) is equipped with external screw thread (1.5) that are used for connecting the water pipe, install gland (2) on delivery port (1.3), be equipped with first sealing washer (3) between the lateral wall of gland (2) and delivery port (1.3), be provided with mold insert (4) between intake antrum (1.2) and pressure release chamber (1.4).

2. The corrosion protection valve of claim 1, wherein: be equipped with into water subassembly (a) in intake antrum (1.2), it includes into water case (5) to intake subassembly (a), valve barrel (6), interior pressure release regulating spring (7), pressure release valve rod (8) and first packing ring (9), valve barrel (6) spiro union is on pressure release valve rod (8), the bottom that lies in gland (2) in intake antrum (1.2) is equipped with guide ring (10), the bottom of gland (2) sticiss guide ring (10), be connected with into water spring (11) between intake case (5) and guide ring (10), it is used in guide ring (10) to intake spring (11) one end elasticity, other end elastic action is on intake case (5), it does the motion that resets to intake subassembly (a) relative valve body (1) under the elastic action of intake spring (11), with elasticity closed intake antrum (1.2).

3. The corrosion protection valve of claim 2, wherein: an inner relief hole (5.1) communicated with the water inlet (1.1) is formed in the water inlet valve core (5), the relief valve rod (8) penetrates through the inner relief hole (5.1) in a sliding mode, a relief head (8.1) is arranged at one end of the relief valve rod (8), and a first gasket (9) is arranged between the relief head (8.1) and the water inlet valve core (5); one end of the internal pressure relief and regulation spring (7) elastically acts on the valve sleeve (6), and the other end elastically acts on the water inlet valve core (5); the pressure relief valve rod (8) is reset relative to the valve body (1) under the elastic action of the inner pressure relief and regulation spring (7) so that the first gasket (9) seals the inner pressure relief hole (5.1) and further cuts off the water inlet (1.1) and the water inlet cavity (1.2).

4. The corrosion protection valve of claim 3, wherein: pressure release valve rod (8) pass guide ring (10), are equipped with limbers (10.1) on guide ring (10), and through-hole, limbers (10.1) and intake antrum (1.2) the intercommunication that loop through gland (2) in delivery port (1.3), the top week side of guide ring (10) outwards extends, forms chimb (10.2), and intake spring (11) one end elasticity is used in chimb (10.2).

5. The corrosion protection valve of claim 4, wherein: the water inlet valve is characterized in that a plurality of annularly distributed bulges (5.2) are arranged on the periphery of the bottom of the water inlet valve core (5), water openings (5.3) are formed among the bulges (5.2), and when the water inlet component (a) moves upwards, the water inlet (1.1) is communicated with the water inlet cavity (1.2) through the water openings (5.3).

6. The corrosion protection valve of claim 5, wherein: a pressure relief assembly (b) is arranged in the pressure relief cavity (1.4), the pressure relief assembly (b) comprises a pressure relief pull rod (12), a pressure relief valve core (13), a first gasket (14) and a second gasket (15), an outer pressure relief pressure regulating spring (16) and a pressure regulating wall nut (17) are sleeved on the periphery of the pressure relief pull rod (12), one end of the outer pressure relief pressure regulating spring (16) elastically acts on the pressure relief valve core (13), the other end of the outer pressure relief pressure regulating spring elastically acts on the pressure regulating wall nut (17), and the pressure relief pull rod (12) performs reset motion relative to the valve body (1) under the elastic action of the outer pressure relief pressure regulating spring (16) so as to regulate the medium pressure in the valve body (1); the bottom of the pressure relief cavity (1.4) is provided with a pressure relief opening (1.6).

7. The corrosion protection valve of claim 6, wherein: a pressure relief channel (1.7) is arranged between the water inlet cavity (1.2) and the pressure relief cavity (1.4), the insert (4) is clamped on the pressure relief channel (1.7), a first gasket (14) and a second gasket (15) are arranged between the pressure relief valve core (13) and the insert (4), and one end, facing the pressure relief cavity (1.4), of the insert (4) tightly presses the first gasket (14); the insert (4) is made of stainless steel material.

8. The corrosion protection valve of claim 7, wherein: one end of the pressure relief cavity (1.4) is provided with a water sealing cover (18), one side of the water sealing cover (18) is provided with a handle (19), and the pressure relief pull rod (12) penetrates through the water sealing cover (18) and is connected with the handle (19) through a clamping piece (20); a second sealing ring (21) is arranged between the water sealing cover (18) and the valve body (1), a third sealing ring (22) is arranged between the pressure relief pull rod (12) and the water sealing cover (18), and a middle finger (23) is arranged between the water sealing cover (18) and the handle (19).

9. The corrosion protection valve according to any one of claims 1 to 8, wherein: the top cover of gland (2) is equipped with second packing ring (24), and second packing ring (24) are located between the top of gland (2) and the lateral wall of delivery port (1.3).