Push type gas switch valve

Abstract

A pressing type gas switch valve comprises a valve body, a valve element, a valve rod, a valve element spring, a guide seat, a valve cover, an ejector rod, a reset spring and a driving self-locking device, the valve body comprises a gas inlet connector pipe, a valve element cavity, a valve element seat, a gas outlet cavity, a gas outlet connector pipe and a driving cavity, the valve rod extends out of the guide seat through a valve rod channel, and the end of the valve rod is fixed to the valve element. The guide seat is inserted into the valve element cavity, the annular seat plate is attached to the open end, the valve deck and the valve element cavity are screwed to fix the guide seat, the head is inserted into the valve element spring, the valve element spring is matched with the valve element and the guide seat, and the valve element is matched with the valve element seat. The ejector rod penetrates through the reset spring, extends into the valve element cavity through the guide hole and the air outlet cavity and is matched with the end of the valve rod. The driving self-locking device is arranged at the open end of the driving cavity and matched with the ejector rod. When the driving self-locking device is pressed, the ejector rod drives the valve rod and the valve element to leave the valve element seat; then the driving self-locking device is pressed, and automatic closing is achieved under the action of the valve element spring and the reset spring; the operation is convenient.

Description

Technical Field

[0001] The invention relates to a gas switch valve for a gas appliance. Background Art

[0002] At present, the existing technology, Chinese patent CN200610029891.9, a spring magnetic control overlap gas motor valve, its technical features are: using a group of opposite polarity attracting main magnetic steel, auxiliary magnetic steel and spring organic combination, the main and auxiliary magnetic steels are attracted to each other to complete the valve opening, the spring is relaxed to complete the valve closing, the main and auxiliary magnetic steels are attracted to each other - the spring is relaxed to complete the valve opening and closing functions; because the magnetic field space between the main and auxiliary magnetic steels forms an isolation zone, the motor is installed in a fully enclosed motor box, achieving the purpose of completely and reliably isolating the motor from the gas. The existing problems are: the structure is complex and a power supply is required. Summary of the invention

[0003] The purpose of the present invention is to provide a push-type gas switch valve, which has the characteristic of being able to switch on and off by pressing.

[0004] The present invention is implemented as follows: a push-type gas switch valve, which is special in that it includes a valve body, a valve core, a valve stem, a valve core spring, a guide seat, a valve cover, a push rod, a reset spring and a driving self-locking device,

[0005] The valve body includes an air inlet interface pipe, a valve core cavity with an opening at one end, a valve core seat, an air outlet cavity, an air outlet joint pipe and a drive cavity, and a guide hole is provided on a partition plate between the drive cavity and the air outlet cavity;

[0006] The guide seat is hollow with one end open and comprises a head, a valve stem channel and an annular seat plate;

[0007] A transmission head is provided on the top rod;

[0008] The valve stem extends out of the guide seat through the valve stem channel and the end is fixed to the valve core, the guide seat is inserted into the valve core cavity, the annular seat plate is fitted with the open end, the valve cover is screwed with the valve core cavity to fix the guide seat, the head is inserted into the valve core spring, the valve core spring cooperates with the valve core and the guide seat, and the valve core cooperates with the valve core seat; the push rod passes through the reset spring, extends into the valve core cavity through the guide hole and the air outlet cavity and cooperates with the end of the valve stem; the drive self-locking device is arranged at the open end of the drive cavity and cooperates with the push rod.

[0009] The push-type gas switch valve is special in that: a sealing countersunk hole is provided at one end of the guide hole located in the driving cavity;

[0010] Also includes gaskets and seals,

[0011] The sealing ring is arranged in the sealing countersunk hole, the gasket closes the sealing countersunk hole, and the ejector rod passes through the gasket and the sealing ring.

[0012] The push-type gas switch valve is special in that the drive self-locking device comprises a cylindrical seat with one end open, a drive rod and a transmission member.

[0013] The cylindrical seat comprises a rod hole, a tooth cavity, an axial tooth arranged in the tooth cavity and a light cavity, the lower end of the axial tooth is left-handed or right-handed and is provided with a locking notch, the axial tooth is provided with an axial shallow groove, and the tooth cavity between two adjacent axial teeth constitutes an axial deep groove;

[0014] The driving rod comprises a guide cavity with an opening at one end, a driving tooth arranged at the opening end and an axial protrusion arranged at the lower end of the ring, the driving tooth is angular, and the number of the driving tooth and the axial protrusion are the same;

[0015] The transmission member comprises a guide rod, a circular body and a driven tooth arranged around the circular body, the upper end of the driven tooth is right-handed or left-handed; the number of the driven tooth and the axial deep groove is the same and is half the number of the driving tooth and the axial protrusion;

[0016] The driving rod extends from the rod hole into the cylindrical seat, the axial protrusion slides with the axial deep groove and the axial shallow groove, the guide rod slides with the guide cavity, the driven tooth slides with the optical cavity and the axial deep groove, the driving tooth meshes with the driven tooth; the driven tooth slides with the lower end of the axial tooth and with the locking notch; the cylindrical seat is screwed with the driving cavity, and the circular body is matched with the transmission head.

[0017] The push-type gas switching valve is special in that: the driven teeth and the axial teeth are respectively provided with four, and the driving teeth and the axial protrusions are provided with eight.

[0018] The invention discloses a push-type gas switch valve, which is pressed to drive a self-locking device, and a push rod drives a valve stem and a valve core to leave a valve core seat; the self-locking device is pressed again to drive the valve stem and the valve core to automatically close under the action of a valve core spring and a return spring; and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a cross-sectional view of the present invention.

[0020] Figure 2 yes Figure 1 A-A view of.

[0021] Figure 3 yes Figure 1 B-B view.

[0022] Figure 4 It is a cross-sectional view of the valve-opening state of the present invention.

[0023] Figure 5 It is one of the three-dimensional exploded views of the present invention.

[0024] Figure 6 It is the second of the three-dimensional exploded diagrams of the present invention.

[0025] Figure 7 It is the third of the three-dimensional exploded diagram of the present invention

[0026] Figure 8 It is a perspective view of the present invention. DETAILED DESCRIPTION

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] like Figure 1 As shown, a push-type gas switch valve includes a valve body 1, a valve core 2, a valve stem 3, a valve core spring 4, a guide seat 5, a valve cover 6, a push rod 7, a reset spring 8 and a drive self-locking device 9.

[0030] The valve body 1 includes an air inlet interface pipe 11, a valve core cavity 12 with an opening at one end, a valve core seat 13, an air outlet cavity 14, an air outlet joint pipe 15 and a drive cavity 16. A guide hole is provided on a partition between the drive cavity 16 and the air outlet cavity 14; the air inlet interface pipe 11, the valve core cavity, the valve core seat, the air outlet cavity and the air outlet interface pipe are connected in sequence;

[0031] The guide seat 5 is hollow and has an open end, and includes a head 51, a valve stem passage 52 and an annular seat plate 53;

[0032] A transmission head 71 is provided on the top rod 7;

[0033] The valve stem 3 extends out of the guide seat 5 through the valve stem channel 52 and the end is fixed to the valve core 2, the guide seat 5 is inserted into the valve core cavity 12, the annular seat plate 53 is fitted with the open end, the valve cover 6 is screwed with the valve core cavity 12 to fix the guide seat 5, the head 51 is inserted into the valve core spring 4, the valve core spring 4 cooperates with the valve core and the guide seat 5, and the valve core 2 cooperates with the valve core seat 13; the push rod 7 passes through the reset spring 8, extends into the valve core cavity 12 through the guide hole and the air outlet cavity 14 and cooperates with the end of the valve stem 3; the drive self-locking device is arranged at the open end of the drive cavity 16 and cooperates with the push rod 7.

[0034] As a further improvement of the present invention: a sealing countersunk hole 17 is provided at one end of the guide hole located in the driving cavity 16;

[0035] It also includes a sealing ring 171 and a gasket 172,

[0036] The sealing ring 171 is arranged in the sealing countersunk hole 17 , the gasket 172 closes the sealing countersunk hole 17 , the push rod 7 passes through the gasket 172 and the sealing ring 172 , and the return spring 8 cooperates with the gasket 172 .

[0037] like Figure 1 , Figure 5 , Figure 6 As shown, the driving self-locking device 9 includes a cylindrical seat 91 with one end open, a driving rod 92 and a transmission member 93.

[0038] The cylindrical seat 91 includes a rod hole 911, a tooth cavity 912, an axial tooth 913 and an optical cavity 914 arranged in the tooth cavity 912. The lower end of the axial tooth 913 is left-handed or right-handed and is provided with a locking notch 915. The axial tooth 913 is provided with an axial shallow groove 9131. The axial shallow groove 9131 is connected with the locking notch 915. The tooth cavity 912 between two adjacent axial teeth 913 forms an axial deep groove 916. The axial tooth 913 is in an arc shape.

[0039] The driving rod 92 includes a guide cavity 921 with an opening at one end, a driving tooth 922 disposed at the opening end, and an axial protrusion 923 disposed at the annular lower end. The driving tooth 922 is angular, and the number of the driving tooth 922 and the axial protrusion 923 are the same and corresponding.

[0040] The transmission member 93 includes a guide rod 931, a circular body 932 and a driven tooth 933 arranged around the circular body 932, and the upper end of the driven tooth 933 is right-handed or left-handed; the number of the driven teeth 933 and the axial deep grooves 916 is the same and is half the number of the driving teeth 922 and the axial protrusions 923;

[0041] The driving rod 92 extends from the rod hole 911 into the cylindrical seat 91, the axial protrusion 923 slides with the axial deep groove 916 and the axial shallow groove 9131, the guide rod 931 slides with the guide cavity 921, the driven tooth 933 slides with the optical cavity 914 and the axial deep groove 916, the circular body 932 slides with the axial tooth 913 or has a clearance fit; the driving tooth 922 and the driven tooth 933 are meshed; the driven tooth 933 slides with the lower end of the axial tooth 913 and cooperates with the locking notch 915; the cylindrical seat 91 is screwed with the driving cavity 16, and the circular body 932 cooperates with the transmission head 71.

[0042] As a further modification of the present invention: the driven teeth 933 and the axial teeth 913 are respectively provided with four, and the driving teeth 922 and the axial protrusions 923 are provided with eight.

[0043] Figure 1 This is a view of the cut-off state of this embodiment. Under the action of the valve core spring 4 and the gas pressure, the valve core 2 and the valve core seat 13 are tightly fitted and sealed, thereby improving the sealing performance;

[0044] The driving rod 92 is pressed, and the driving rod 92 moves downward, and the axial protrusion 923 moves in the axial shallow groove 9131 and the axial deep groove 916; at the same time, the active tooth 922 acts on the driven tooth 933 on the transmission member 93, the transmission member 93 moves downward, the upper end of the driven tooth 933 leaves the axial deep groove 916, and then rotates, and the driven tooth 933 enters the locking notch 915 and stops; the circular body 932 of the transmission member 93 acts on the transmission head 71 of the push rod 7, the push rod moves downward and compresses the reset spring; the push rod 7 acts on the valve stem 3, and the valve core 2 leaves the valve core seat 13; the gas flows out from the gas outlet interface pipe through the gas inlet interface pipe, the valve core cavity, the gas guide hole on the valve core seat and the gas outlet cavity, and is in the guide channel state for the gas cooker to burn, such as Figure 4 Status shown;

[0045] like Figure 4 In the conduction state shown in FIG. 1 , the driving rod 92 is pressed again, the active tooth 922 acts on the driven tooth 933, the driving rod moves downward, the driven member moves downward to leave the locking notch, and then rotates, and the driven tooth 933 enters another axial deep groove 916; under the action of the valve core spring and the return spring, the valve stem and the valve core move upward, the push rod 1 drives the circular body 932 of the transmission member 93, and the transmission member and the driving rod move upward; the upper end of the axial protrusion 923 cooperates with the top plate of the cylindrical seat 91 to stop, and the cut-off state is converted, as shown in FIG. Figure 1 shown.

[0046] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A push-type gas switch valve, characterized in that: It includes valve body, valve core, valve stem, valve core spring, guide seat, valve cover, push rod, return spring and drive self-locking device. The valve body includes an air inlet interface pipe, a valve core cavity with an opening at one end, a valve core seat, an air outlet cavity, an air outlet joint pipe and a drive cavity, and a guide hole is provided on a partition plate between the drive cavity and the air outlet cavity; The guide seat is hollow with one end open and comprises a head, a valve stem channel and an annular seat plate; A transmission head is provided on the top rod; The valve stem extends out of the guide seat through the valve stem channel and the end is fixed to the valve core, the guide seat is inserted into the valve core cavity, the annular seat plate is fitted with the open end, the valve cover is screwed with the valve core cavity to fix the guide seat, the head is inserted into the valve core spring, the valve core spring cooperates with the valve core and the guide seat, and the valve core cooperates with the valve core seat; the push rod passes through the reset spring, extends into the valve core cavity through the guide hole and the air outlet cavity and cooperates with the end of the valve stem; the drive self-locking device is arranged at the open end of the drive cavity and cooperates with the push rod.

2. According to claim 1, a push-type gas switching valve is characterized in that: A sealing countersunk hole is provided at one end of the guide hole located in the driving cavity; Also includes gaskets and seals, The sealing ring is arranged in the sealing countersunk hole, the gasket closes the sealing countersunk hole, and the ejector rod passes through the gasket and the sealing ring.

3. According to claim 1, a push-type gas switch valve is characterized in that: The drive self-locking device comprises a cylindrical seat with one end open, a drive rod and a transmission member. The cylindrical seat comprises a rod hole, a tooth cavity, an axial tooth arranged in the tooth cavity and a light cavity, the lower end of the axial tooth is left-handed or right-handed and is provided with a locking notch, the axial tooth is provided with an axial shallow groove, and the tooth cavity between two adjacent axial teeth constitutes an axial deep groove; The driving rod comprises a guide cavity with an opening at one end, a driving tooth arranged at the opening end and an axial protrusion arranged at the lower end of the ring, the driving tooth is angular, and the number of the driving tooth and the axial protrusion are the same; The transmission member comprises a guide rod, a circular body and a driven tooth arranged around the circular body, the upper end of the driven tooth is right-handed or left-handed; the number of the driven tooth and the axial deep groove is the same and is half the number of the driving tooth and the axial protrusion; The driving rod extends from the rod hole into the cylindrical seat, the axial protrusion slides with the axial deep groove and the axial shallow groove, the guide rod slides with the guide cavity, the driven tooth slides with the optical cavity and the axial deep groove, the circular body slides with or has a clearance fit with the axial tooth; the driving tooth meshes with the driven tooth; the driven tooth slides with the lower end of the axial tooth and with the locking notch; the cylindrical seat is screwed with the driving cavity, and the circular body is matched with the transmission head.

4. According to claim 1, a push-type gas switch valve is characterized in that: The driven teeth and the axial teeth are respectively provided with four, and the driving teeth and the axial protrusions are provided with eight.

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