Novel double-insert type plastic safety valve

Abstract

The utility model discloses a novel double-insert type plastic safety valve which comprises a valve body with a valve cavity formed inside, and is characterized in that the valve body comprises an external plastic valve body, a first copper insert and a second copper insert, and the first copper insert and the second copper insert are embedded in the valve cavity; wherein the first copper insert is located at the water outlet end of the valve body, and the second copper insert is located in a leakage cavity of the valve cavity. The copper insert is mainly used for guaranteeing the accuracy and stability of leakage pressure, and the newly added internal thread insert aims at preventing the assembled internal thread from loosing. The plastic part has certain deformation along with the change of the working environment temperature, so that the leakage pressure is not accurate. The external thread G1 / 2 ''is connected with a water inlet pipe, and the internal thread G1 / 2'' is connected with an electricity-proof wall.

Description

TECHNICAL FIELD

[0001] The utility model relates to a safety valve technical field, concretely is a new type double embedding piece formula plastic safety valve. BACKGROUND

[0002] The prior art is that when the water pressure in the inner container is too high during the electric heating process of the electric water heater under the condition of power-on and water-through, a part of water is discharged through the inner discharge, and when the pressure in the inner container is higher than the outer discharge pressure, water is dripped from the outer discharge port to discharge pressure. Generally, water will drip out during the heating process, which is a normal phenomenon. If no water drips out, it means that the water pressure during the heating process is within the rated pressure range set by the safety valve. In addition, due to the product structure problem, the process is complex during production, which increases the cost, and the overall structure needs to be improved. Based on this, the applicant makes corresponding design improvement and proposes a new type double embedding piece formula plastic safety valve application. CONTENT OF THE UTILITY MODEL

[0003] The utility model relates to a new type double embedding piece formula plastic safety valve, which is used to solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0005] A new type double embedding piece formula plastic safety valve, comprising a valve body forming a valve cavity inside, characterized in that: the valve body comprises a plastic valve body outside and a first copper insert and a second copper insert embedded in the valve cavity.

[0006] The first copper insert is located at the water outlet end of the valve body, and the second copper insert is located in the outer discharge cavity of the valve cavity.

[0007] Further optimization of the utility model is made, the valve cavity comprises an inner discharge cavity and an outer discharge cavity, and a channel for connecting the inner discharge cavity and the outer discharge cavity, wherein an inner discharge structure is installed in the inner discharge cavity, and an outer discharge structure is installed in the outer discharge cavity.

[0008] Further optimization of the utility model is made, the inner discharge structure comprises a one-way valve core, a spring seat is sleeved outside the one-way valve core, an opening spring is sleeved outside the spring seat, and an inner discharge spring is installed between the spring seat and the one-way valve core.

[0009] Further optimization of the utility model is made, an inner discharge filter screen is installed at the water outlet end, and the inner discharge filter screen is fixed by elastic buckle installation.

[0010] The utility model discloses further optimize, the outer leakage structure includes the silica gel gasket for sealing one end of passage, the silica gel gasket buckle installation is in the rubber seat bottom, the rubber seat top sleeve connection pull rod, the pull rod outside sleeve connection outer leakage spring, the pull rod outside installation pressure cap, the outer leakage spring end respectively and the pressure cap, the rubber seat between abutment form the pressure tightness of.

[0011] The utility model discloses further optimize, the pull rod top installation handle.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The valve body in the utility model is composed of two copper inserts and plastic, the function of the copper insert is mainly to ensure the accuracy and stability of the pressure relief, the newly added internal thread insert is to prevent the assembly of the internal thread from slipping, the plastic part deforms with the change of the working environment temperature, which leads to the misalignment of the pressure relief. The external thread G1 / 2" is connected with the water inlet pipe, and the internal thread G1 / 2" is connected with the anti-electricity wall.

[0014] The inner leakage assembly has two functions, one is the function of the check valve, which allows water to enter the inner container of the water heater under a certain water pressure, and the other is the sealing function in the reverse direction, which prevents the reverse flow of water. When the electric water heater is working, the pressure in the inner container rises with the heating of the water, and when there is a certain pressure difference between the pressure in the inner container and the water inlet pressure, the water flows through the inner leakage assembly channel for inner leakage, releasing part of the pressure in the inner container.

[0015] The main function of the outer leakage assembly in the utility model is to protect the pressure in the inner container. When the pressure in the inner container rises and the inner leakage is in a saturated state, the sealing surface is opened through the compression of the spring with the increase of the pressure, so that the water flows out of the pressure relief port, and the solid line releases the pressure in the inner container.

[0016] In actual production, the utility model can reduce the process flow of semi-finished products, improve the shell production efficiency of producers, and reduce production cost. The old process has a long raw material procurement cycle, and the processing technology includes a series of processing passes such as blanking, forging, edge cutting, sand blasting, appearance inspection, finishing, and surface treatment, and the production cycle and circulation are long. The new process of plastic copper insert injection molding can reduce the raw material procurement cycle, reduce the processing technology and the circulation frequency and aging of semi-finished products, and reduce the production cost. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below are only some embodiments of the present application, and the ordinary skilled in the art can obtain other drawings according to these drawings without any creative effort. In all the drawings, similar elements or parts are generally identified by similar reference signs. In the drawings, the elements or parts are not necessarily drawn according to the actual proportions.

[0018] Fig. 1 is a structural schematic view of the present application;

[0019] Fig. 2 is a schematic view of the valve body part in the present application.

[0020] Fig. 3 is a sectional structural schematic view of the present application; DETAILED DESCRIPTION

[0021] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For the ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by the ordinary skilled in the art without any creative effort are within the scope of protection of the present application.

[0024] Please refer to Figs. 1-3The utility model provides a novel double embedding piece type plastic safety valve, including the valve body 1 of inside formation valve cavity 2, its characterized in being: the valve body 1 includes the plastic valve body 101 of outside and the first copper insert 102 and the second copper insert 103 embedded in the valve cavity 2, wherein the first copper insert 102 is located at the water outlet end of the valve body 1, and the second copper insert 103 is located in the outer leakage cavity 202 of the valve cavity 2. The valve cavity 2 includes the inner leakage cavity 201 and the outer leakage cavity 202, and a channel 203 for connecting the inner leakage cavity 201 and the outer leakage cavity 202, wherein the inner leakage structure is installed in the inner leakage cavity 201, and the outer leakage structure is installed in the outer leakage cavity 202.

[0025] The valve body in the utility model is composed of two copper inserts and plastic, the main role of the copper insert is to ensure the accuracy and stability of the outer leakage pressure, and the newly added internal thread insert aims to prevent the assembly of the internal thread from slipping. The plastic part deforms to a certain extent with the change of the working environment temperature, thereby causing the outer leakage pressure to be misaligned. The external thread G1 / 2" is connected to the water inlet pipe, and the internal thread G1 / 2" is connected to the anti-electricity wall.

[0026] The inner leakage structure includes a one-way valve core 3, the one-way valve core 3 is externally sleeved with a spring seat 4, the spring seat 4 is externally sleeved with an opening spring 5, an inner leakage spring 6 is installed between the spring seat 4 and the one-way valve core 3, an inner leakage filter screen 8 is installed at the water outlet end 7, and the inner leakage filter screen 8 is elastically fixed by buckle installation. The inner leakage assembly has two functions, one is the one-way valve function, and water is allowed to enter the inner container of the electric water heater through the valve body under a certain water pressure, and the other is sealing in the reverse direction, so that water cannot flow in the reverse direction. When the electric water heater is working, with the increase of the pressure of the water heating inner container, when there is a certain pressure difference between the pressure of the inner container and the water inlet pressure, water is leaked through the inner leakage assembly channel, and part of the pressure of the inner container is released.

[0027] The outer leakage structure includes a silica gel gasket 9 for sealing one end of the channel 203, the silica gel gasket 9 is buckle-mounted at the bottom of a rubber seat 10, the rubber seat 10 is top-sleeved with a pull rod 11, the pull rod 11 is externally sleeved with an outer leakage spring 12, the pull rod 11 is externally installed with a compression cap 13, the outer leakage spring 12 is abutted between the compression cap 13 and the rubber seat 10 to form a compression state, and the pull rod 11 is top-installed with a handle 14. The main function of the outer leakage assembly in the utility model is to protect the pressure of the inner container. When the pressure of the inner container rises and the inner leakage is in a saturated state, with the increase of the pressure, the sealing surface is opened through the compression of the spring, so that water flows out from the pressure relief port, and the solid line releases the pressure of the inner container.

[0028] While embodiments of the present application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, which is defined by the following claims.

Claims

1. A new type of double insert plastic safety valve comprising a valve body having a valve cavity formed therein, characterized in that: The valve body comprises an outer plastic valve body and a first copper insert and a second copper insert embedded in the valve cavity; The first copper insert is located at the water outlet end of the valve body, and the second copper insert is located in the outer leakage cavity of the valve cavity.

2. A new type of double-inserted plastic safety valve according to claim 1, characterized in that: The valve cavity comprises an inner leakage cavity and an outer leakage cavity, and a channel for connecting the inner leakage cavity and the outer leakage cavity, wherein an inner leakage structure is installed in the inner leakage cavity, and an outer leakage structure is installed in the outer leakage cavity.

3. A new type of double-inserted plastic safety valve according to claim 2, characterized in that: The inner leakage structure comprises a one-way valve spool, a spring seat outside the one-way valve spool, an opening spring outside the spring seat, and an inner leakage spring between the spring seat and the one-way valve spool.

4. A new type of double-inserted plastic safety valve according to claim 1, characterized in that: An inner leakage filter screen is installed at the water outlet end, which is fixed by elastic buckle installation.

5. A new type of double-inserted plastic safety valve according to claim 2, characterized in that: The outer leakage structure comprises a silica gel gasket for sealing one end of the channel, which is buckled and installed at the bottom of a rubber seat, the top of the rubber seat is sleeved with a pull rod, the pull rod is externally sleeved with an outer leakage spring, the pull rod is externally installed with a compression cap, and the ends of the outer leakage spring are respectively abutted with the compression cap and the rubber seat to form a compression state.

6. A new type of double-inserted plastic safety valve according to claim 5, characterized in that: A handle is installed at the top of the pull rod.

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