CN213929576U - Mechanical structure for gas safety valve and gas safety valve thereof - Google Patents

Abstract

The utility model discloses a mechanical structure for a gas safety valve, which comprises a sealed shell I, wherein the left side and the right side of the shell I are provided with a ventilation interface I, the inner ends of the left ventilation interface I and the right ventilation interface I are arranged at the lower part in the shell I, and the upper part in the shell I is provided with a rotating shaft pin, a plugging cover, a fusing strip and a suspension rod; a gas safety valve comprises a sealed shell II, wherein ventilation interfaces II are arranged on the left side and the right side of the shell II, the inner ends of the left ventilation interface II and the right ventilation interface II are positioned inside the shell II, a safety valve electromagnetic assembly is further arranged on the shell II and positioned between the inner ends of the left ventilation interface II and the right ventilation interface II, and the gas safety valve further comprises a mechanical structure for the gas safety valve. The utility model discloses a normal work operation that the device can be guaranteed to the homoenergetic under the power and electroless circumstances to the relief valve, and has 3 seal structure, the security performance of assurance relief valve that can be better, long-range control and feedback signal function can be fine provide safe guarantee for the user.

Description

Mechanical structure for gas safety valve and gas safety valve thereof

Technical Field

The utility model belongs to the technical field of the gas safety, concretely relates to a mechanical structure for gas safety valve and gas safety valve thereof.

Background

The gas is used as gas for residents, is popularized in each resident home, can be used for heating, cooking and the like, provides various conveniences, brings various gas safety accidents, and strengthens the safety structure of gas equipment while improving the safety awareness of gas for residents. The existing gas safety valve is provided with an electromagnetic valve, for example, a patent No. 201821898920X discloses a gas safety valve and a gas control system thereof. The gas safety valve comprises a valve body, wherein a valve is arranged in the valve body, one end of the valve is fixedly connected with one end of a valve rod, the other end of the valve rod penetrates out of the valve body, a valve rod spring is sleeved on the valve rod, and an electromagnetic driving part is arranged at the other end of the valve rod. The other end of the valve is provided with a manual driving part, and the manual driving part is provided with a locking part. The gas control system comprises a gas safety valve and a safety valve control device, the gas safety valve is electrically connected with the safety valve control device, and the gas safety valve is the gas safety valve body. The utility model discloses an accessible safety valve controlling means realizes automatic switch gas safety under the electrified circumstances, can realize manual switch gas relief valve under the condition that has a power failure. However, the safety valve core only has one sealing structure, and the problem of leakage of the non-strict sealing can occur. And the safety valve can not be monitored and fed back to a user in real time in an online manner to remind the user to carry out early warning, investigation and risk avoidance, and unpredictable life safety accidents can usually happen if only the conditions of old people, pets and the like which cannot use the safety valve are in a home.

Disclosure of Invention

The utility model aims at solving the technical problem, provide a mechanical structure that is used for gas safety valve of reducible leakage condition and has multiple safety guarantee's gas safety valve.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

a mechanical structure for a gas safety valve comprises a sealed shell I, wherein ventilation interfaces I are arranged on the left side and the right side of the shell I, the inner ends of the left and the right ventilation interfaces I are arranged at the lower part in the shell I, a rotating shaft pin, a blanking cap, a fusing strip and a suspension rod are arranged at the upper part in the shell I, and the rotating shaft pin, the blanking cap, the fusing strip and the suspension rod are positioned above the inner ends of the left and the right ventilation interfaces I; the suspension rod is fixedly connected with the front surface and the rear surface of the shell I; the two rotating shaft pins are respectively arranged on the left side and the right side of the suspension rod in parallel and are rotationally connected with the shell I; the two blocking covers are arranged on the left side and the right side of the suspension rod respectively, the lower part of each blocking cover is a circular thick and heavy block structure, the upper part of each blocking cover is provided with a shaft hole separately, and the rotating shaft pins penetrate through the shaft holes on the same side to be connected with the blocking covers in a rotating mode; the left end and the right end of the fusing bar connect the lower parts of the left blocking cover and the right blocking cover together, and the fusing bar is hung on the hanging rod so as to open the left blocking cover and the right blocking cover; a pre-tightening spring is further arranged between the lower part of the blocking cover and the connecting surface of the fusing strip, one end of the pre-tightening spring is fixedly propped against the inner surface of the shell I, and the other end of the pre-tightening spring is fixedly propped against the lower part of the blocking cover through a positioning boss; after the fusing strip is fused, the blanking cover rotates downwards by means of the weight of the blanking cover and is pressed by the acting force of the pre-tightening spring, so that the lower part of the blanking cover is correspondingly pressed and attached to the inner end face of the ventilation interface I left and right, and the purpose of reliable sealing is achieved.

As a further technical scheme, the inner end faces of the left and right ventilation ports I are inclined planes.

As a further technical scheme, the fusing strip is made of fusible plastics, rubber and the like.

A gas safety valve comprises a sealed shell II, wherein ventilation interfaces II are arranged on the left side and the right side of the shell II, the inner ends of the left ventilation interface II and the right ventilation interface II are positioned inside the shell II, a safety valve electromagnetic assembly is further arranged on the shell II and positioned between the inner ends of the left ventilation interface II and the right ventilation interface II, the gas safety valve further comprises the mechanical structure for the gas safety valve, and one outer end of the ventilation interface I is communicated with one outer end of the ventilation interface II.

As a further technical scheme, the safety valve electromagnetic assembly comprises a safety valve core, an electromagnetic valve and a reset spring, the electromagnetic valve is covered on the upper part of the safety valve core in a fitting manner and is fixedly connected with the shell II, the reset spring is arranged between the electromagnetic valve and the safety valve core, one end of the reset spring is fixedly connected with the electromagnetic valve, the other end of the reset spring is fixedly connected with the top of the safety valve core, an accommodating cavity in interference fit with the safety valve core is arranged below the safety valve core, the accommodating cavity is arranged in the shell II, and the safety valve core can move up and down along the accommodating cavity; when the return spring is in a compression pre-tightening state, the gas of the inner end cavity of the left and right ventilation interfaces II circulates; when the reset spring resets, the safety valve core falls into the containing cavity to separate the inner end cavity of the left and right ventilation interfaces II.

As a further technical scheme, the gas safety valve further comprises a temperature sensor, a gas concentration sensor and an electronic control module, the electronic control module is mounted at the top of the housing i, the temperature sensor and the gas concentration sensor are mounted beside the gas channel, the electromagnetic valve is externally connected with a power supply i, and the electronic control module comprises:

the power supply II is used for supplying power to the singlechip;

the single chip microcomputer receives signals of the temperature sensor and the gas concentration sensor, judges whether the temperature and the gas concentration exceed preset thresholds or not, and sends a power-off signal to a power supply I of the electromagnetic valve if the temperature and the gas concentration exceed the preset thresholds; the single chip microcomputer is electrically connected with the power supply II;

and the wireless communication module is used for transmitting the temperature information, the gas concentration information and the judgment result of the singlechip to the remote client in real time, and the singlechip is in wireless communication with the remote client through the wireless communication module.

As a further technical scheme, the single chip microcomputer adopts a 51 single chip microcomputer. The circuit module of the utility model is designed for the routine in the field.

As a further technical scheme, an installation connecting frame is arranged on the outer surface of the shell I and the shell II in the same direction, and a plurality of installation holes are formed in the installation connecting frame.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses the emergence of the reducible leakage condition. The utility model discloses a mechanical structure for gas safety valve, when the conflagration high temperature that takes place, the high temperature is down under self gravity and pretension spring's effect the blind cap with fusible strip fuse about the rotatory hole of controlling the inner terminal surface of interface I of ventilating the contact under the rotation of rotatory pivot and is laminated and compress tightly the cooperation and close gaseous flow and close gas. The utility model relates to a for controlling two blanking caps, twice seal structure promptly, when one seal structure takes place to leak, still can normally cut off gas as further prevention in addition one, reduce the emergence of the external leakage condition of gas.

2. The utility model discloses a gas safety valve has multiple safety guarantee. The gas safety valve of the utility model is additionally provided with a safety valve electromagnetic component and an electric control module on the basis of having a mechanical structure, when fire disaster or gas leakage occurs in the external environment, the sensor receives external signals such as external temperature, gas concentration and the like, and sends out detection identification to the singlechip, electromagnetic valve closing action and alarm signals to the remote client to inform the remote client of danger, remind the user to timely recover and handle the danger, when the electric control module is powered off or is powered off due to external fire and the like, the electromagnetic valve is powered off, the safety valve core falls to cut off the circulation of the gas circulation cavity under the action of the reset spring when the electromagnetic valve is powered off, the first safety valve is closed to cut off the flow of gas, and if the electric control module is in fire and at high temperature, when the fusible strip is fused at high temperature, the blocking cover is tightly attached to the closed gas and cannot flow, so that no fire source caused by gas exists outside. Thus, the utility model discloses a gas safety valve can guarantee the normal work operation of device under the electrified and electroless circumstances homoenergetic, and has 3 seal structure, the security performance of assurance relief valve that can be better, long-range control and feedback signal function can be fine provide safe guarantee for the user.

Drawings

Fig. 1 is a schematic top view of a mechanical structure for a gas safety valve according to the present invention;

fig. 2 is a front perspective view of the gas safety valve of the present invention;

fig. 3 is a back perspective view of the gas safety valve of the present invention;

FIG. 4 is a cross-sectional internal view of the gas safety valve of FIG. 2;

FIG. 5 is a top view of the gas safety valve of FIG. 2;

FIG. 6 is a schematic view of the lower structure of the gas safety valve of the present invention;

fig. 7 is a schematic circuit diagram of the gas safety valve of the present invention.

Reference numerals: 1-shell I, 2-ventilation ports I, 3-rotating shaft pin, 4-blanking cover, 5-fusing bar, 6-suspension rod, 7-shaft hole, 8-pre-tightening spring, 9-shell II, 10-ventilation ports II, 11-safety valve core, 12-electromagnetic valve, 13-reset spring, 14-electronic control module, 15-installation connecting frame and 16-accommodating cavity.

Detailed Description

The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited to the scope of the examples.

Example 1:

as shown in fig. 1, 4 and 6, a mechanical structure for a gas safety valve comprises a sealed shell I1, wherein ventilation ports I2 are arranged on the left side and the right side of the shell I1, the inner ends of the left and the right ventilation ports I2 are arranged at the lower part in the shell I1, the outer ends of the left and the right ventilation ports I2 are designed into a thread structure matched with a gas pipeline, a rotating shaft pin 3, a blanking cover 4, a fusing bar 5 and a suspension rod 6 are arranged at the upper part in the shell I1, and the rotating shaft pin 3, the blanking cover 4, the fusing bar 5 and the suspension rod 6 are positioned above the inner ends of the left and the right ventilation ports I2; the suspension rod 6 is fixedly connected with the front surface and the rear surface of the shell I1; the two rotating shaft pins 3 are respectively arranged on the left side and the right side of the suspension rod 6 in parallel and are rotationally connected with the shell I1; the two blocking covers 4 are respectively arranged at the left side and the right side of the suspension rod 6, the lower part of each blocking cover 4 is a circular thick and heavy block structure, the upper part of each blocking cover 4 is separately provided with a shaft hole 7, and the rotating shaft pin 3 passes through the shaft holes 7 at the same side so as to be rotationally connected with the blocking covers 4; the left end and the right end of the fusing bar 5 connect the lower parts of the left blocking cover and the right blocking cover 4 together, and the fusing bar 5 is hung on the hanging rod 6 so as to open the left blocking cover and the right blocking cover 4; a pre-tightening spring 8 is further arranged between the lower part of the blocking cover 4 and the connecting surface of the fusing strip 5, one end of the pre-tightening spring 8 is fixedly propped against the inner surface of the shell I1, and the other end of the pre-tightening spring is fixedly propped against the lower part of the blocking cover 4 through a positioning boss; the suspension rod 6 can ensure that the blocking cover 4 is kept at the upper part and does not contact and tightly press the inner end face of the closed right ventilation interface I2, and the pre-tightening spring 8 realizes a compression pre-tightening state. After the fusing bar 5 is fused, the blocking cover 4 rotates downwards so that the lower part of the blocking cover 4 is correspondingly pressed and attached to the inner end face of the ventilation interface I2 from left to right. The end surface of the inner end of the left and right ventilation interfaces I2 is an inclined surface. The fusing bar 5 is a rubber fusing bar 5.

The working principle of the mechanical structure is as follows: when a fire disaster occurs and the temperature is high, the blocking cover 4 is downwards rotated to the inner end face of the ventilation interface I2 around the rotating shaft pin 3 to be attached and tightly matched with the inner end face of the ventilation interface I2 under the action of the self gravity and the pre-tightening spring 8 after the fusing strip 5 is fused at the high temperature, so that the flowing of gas is closed, and the gas is closed. The lower side plane of the blocking cover 4 is a smooth and flat plane, and the inclined plane of the end surface of the inner end of the ventilation interface I2 corresponding to the lower side plane is also of a smooth and flat structure, so that when the blocking cover 4 is tightly pressed and attached to the inclined plane, flat contact and attachment can be guaranteed, air is sealed and cannot leak, and therefore two sealing and blocking of air are achieved, and the air inlet and the air outlet are not communicated.

Example 2:

as shown in fig. 2, 3 and 5, the gas safety valve comprises a sealed shell II 9, wherein ventilation interfaces II 10 are arranged on the left side and the right side of the shell II 9, the inner ends of the left ventilation interface II 10 and the right ventilation interface II 10 are positioned inside the shell II 9, a safety valve electromagnetic assembly is further arranged on the shell II 9 and is positioned between the inner ends of the left ventilation interface II 10 and the right ventilation interface II 10, the gas safety valve further comprises the mechanical structure for the gas safety valve, and one outer end of the ventilation interface I2 is communicated with one outer end of the ventilation interface II 10.

The outer surface of the shell I1 and the outer surface of the shell II 9 in the same direction are provided with mounting connecting frames 15, and a plurality of mounting holes are formed in the mounting connecting frames 15. The whole gas safety valve can be installed and fixed on a fixed position needing to be placed, such as a wall, through the installation connecting frame 15.

As shown in fig. 4, 6 and 7, the safety valve electromagnetic assembly includes a safety valve core 11, a solenoid valve 12 and a return spring 13, the solenoid valve 12 is covered on the upper portion of the safety valve core 11 and fixedly connected with the housing ii 9, the return spring 13 is arranged between the solenoid valve 12 and the safety valve core 11, one end of the return spring 13 is fixedly connected with the solenoid valve 12, the other end of the return spring 13 is fixedly connected with the top of the safety valve core 11, an accommodating cavity 16 in interference fit with the safety valve core 11 is arranged below the safety valve core 11, the accommodating cavity 16 is arranged in the housing ii 9, and the safety valve core 11 can move up and down along the accommodating cavity 16; when the return spring 13 is in a compression pre-tightening state, the gas of the inner end cavity of the left and right ventilation interfaces II 10 circulates; when the return spring 13 is reset, the safety valve core 11 falls into the containing cavity 16 to separate the inner end cavity of the left and right ventilation interfaces II 10. When the electromagnetic valve 12 works, the metal safety valve core 11 is attracted upwards to compress the return spring 13, so that the ventilation interface II 10 on the left side is opened, and the ventilation on the left side is realized; when the gas valve is closed or a fire disaster occurs, the gas leakage is detected according to the sensor and the single chip microcomputer sends a signal to disconnect the electricity of the electromagnetic valve 12, the safety valve core 11 can not have upward electromagnetic attraction and move to a lower limit position under the action of self gravity and the reset spring 13 under the condition of installing a vertical state, the reset spring 13 can compress and prevent the safety valve core 11 from loosening, so that the left ventilation interface II 10 can be separated, and the safety valve core 11 is coated with a lubricating sealing agent to be lubricated, rustproof and sealed without influencing the normal up-and-down movement for use during normal use.

As shown in fig. 7, the gas safety valve further includes a temperature sensor, a gas concentration sensor and an electronic control module 14, the electronic control module 14 is installed at the top of the housing i 1, the temperature sensor and the gas concentration sensor are installed beside the gas channel, the electromagnetic valve 12 is externally connected with a power supply i, and the electronic control module 14 includes:

the power supply II is used for supplying power to the singlechip;

the single chip microcomputer receives signals of the temperature sensor and the gas concentration sensor, judges whether the temperature and the gas concentration exceed preset thresholds or not, and sends a power-off signal to the power supply I of the electromagnetic valve 12 if the temperature and the gas concentration exceed the preset thresholds; the singlechip is electrically connected with a power supply II; the singlechip is 51 singlechip.

And the wireless communication module is used for transmitting the temperature information, the gas concentration information and the judgment result of the singlechip to the remote client in real time, and the singlechip is in wireless communication with the remote client through the wireless communication module.

The utility model discloses in, the connected mode of sensor, power, singlechip, wireless communication module and remote client is the conventional connected mode in this area, consequently does not carry out the detail.

When the gas safety valve is assembled, the safety valve core 11 is firstly installed on the shell II 9, the reset spring 13 is installed on the safety valve core 11, the electromagnetic valve 12 is installed on the shell II 9 through a bolt, the plugging cover 4 is installed on the shell I1 through the rotating shaft pin 3, the pre-tightening spring 8 is installed and compressed and sleeved on the shell II 9 and the plugging cover 4, the fusing bar 5 penetrates through the suspension rod 6, two ends of the fusing bar are bonded on the plugging cover 4, meanwhile, the plugging cover 4 is kept to compress the pre-tightening spring 8, the electronic control module 14 is installed on the shell I1 through a bolt, and the shell I1 and the shell II 9 are glued on the installation connecting frame 15. The installation connecting frame 15 is installed and fixed on a wall and other places through bolts, then the air inlet and the air outlet are connected, the electromagnetic valve 12 and the electric control module 14 are connected with a power supply, the sensor is connected with a single chip microcomputer, and finally, the wireless network and a client mobile phone client are tested and connected to complete the installation of the whole gas safety valve assembly. The order of disassembling the machine is performed in reverse order of installation, i.e. on a first-install-then-disassemble basis.

When external environment conflagration or gas leakage take place, the sensor receives external signal like external temperature, gas concentration etc. and detects discernment and send and close solenoid valve 12 action and send alarm signal and inform dangerous existence for remote client, remind the user in time to handle dangerous emergence, and when the singlechip because outage or electroless such as external conflagration, solenoid valve 12 electroless then solenoid valve 12 core closes first safety valve under reset spring 13 effect thereby cut off gaseous flow, if under the high temperature condition of conflagration taking place, high temperature is with the fusing strip 5 fusing in the relief valve then blanking cover 4 of gas relief valve pastes tightly and closes gaseous and the outside no gas flame source that leads to takes place. Like this, this gas safety valve can guarantee safety device's normal operating under the electrified and electroless circumstances homoenergetic, and has 3 safety valve, the security performance of assurance relief valve that can be better, and remote control and feedback signal function can be fine provide safe guarantee for the user.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "head", "tail", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the invention. It is also to be understood that, unless expressly stated or limited otherwise, the terms "connected" and "coupled" are intended to be open-ended, i.e., may be fixedly connected; can be a detachable connection; or may be a point connection; may be a direct connection; may be indirectly connected through an intermediate medium, and may communicate between the two components, and those skilled in the art will understand the specific meaning of the above terms in the present invention in specific situations. The equipment connection mode not described in detail in the utility model is understood according to the conventional connection mode in the field.

The above embodiments are only specific examples for further detailed description of the objects, technical solutions and advantages of the present invention, and the present invention is not limited thereto. Any modification, equivalent replacement, improvement and the like made within the scope of the present disclosure are all included within the protection scope of the present disclosure.

Claims (7)

1. A mechanical structure for a gas safety valve comprises a sealed shell I, wherein ventilation interfaces I are arranged on the left side and the right side of the shell I, the inner ends of the left ventilation interface I and the right ventilation interface I are arranged on the lower portion in the shell I, and the mechanical structure is characterized in that: the upper part in the shell I is provided with a rotating shaft pin, a blocking cover, a fusing strip and a suspension rod, and the rotating shaft pin, the blocking cover, the fusing strip and the suspension rod are positioned above the inner ends of the left and right ventilation interfaces I; the suspension rod is fixedly connected with the front surface and the rear surface of the shell I; the two rotating shaft pins are respectively arranged on the left side and the right side of the suspension rod in parallel and are rotationally connected with the shell I; the two blocking covers are arranged on the left side and the right side of the suspension rod respectively, the lower part of each blocking cover is a circular thick and heavy block structure, the upper part of each blocking cover is provided with a shaft hole separately, and the rotating shaft pins penetrate through the shaft holes on the same side to be connected with the blocking covers in a rotating mode; the left end and the right end of the fusing bar connect the lower parts of the left blocking cover and the right blocking cover together, and the fusing bar is hung on the hanging rod so as to open the left blocking cover and the right blocking cover; a pre-tightening spring is further arranged between the lower part of the blocking cover and the connecting surface of the fusing strip, one end of the pre-tightening spring is fixedly propped against the inner surface of the shell I, and the other end of the pre-tightening spring is fixedly propped against the lower part of the blocking cover through a positioning boss; after the fusing strip is fused, the plug cap rotates downwards, so that the lower part of the plug cap is correspondingly pressed and attached to the inner end face of the ventilation interface I in a left-right mode.

2. A mechanical structure for a gas safety valve according to claim 1, characterized in that: the end face of the inner end of the left and right ventilation interfaces I is an inclined plane.

3. A gas safety valve comprises a sealed shell II, wherein ventilation interfaces II are arranged on the left side and the right side of the shell II, the inner ends of the left ventilation interface II and the right ventilation interface II are positioned inside the shell II, a safety valve electromagnetic assembly is further arranged on the shell II and positioned between the inner ends of the left ventilation interface II and the right ventilation interface II, and the gas safety valve is characterized in that: the gas safety valve further comprises a mechanical structure for a gas safety valve according to claims 1-2, an outer end of the vent interface i being in communication with an outer end of the vent interface ii.

4. A gas safety valve according to claim 3, wherein: the safety valve electromagnetic assembly comprises a safety valve core, an electromagnetic valve and a reset spring, the electromagnetic valve is covered on the upper portion of the safety valve core in a fitting mode and is fixedly connected with the shell II, the reset spring is arranged between the electromagnetic valve and the safety valve core, one end of the reset spring is fixedly connected with the electromagnetic valve, the other end of the reset spring is fixedly connected with the top of the safety valve core, an accommodating cavity in interference fit with the safety valve core is arranged below the safety valve core, the accommodating cavity is arranged in the shell II, and the safety valve core can move up and down along the accommodating cavity; when the return spring is in a compression pre-tightening state, the gas of the inner end cavity of the left and right ventilation interfaces II circulates; when the reset spring resets, the safety valve core falls into the containing cavity to separate the inner end cavity of the left and right ventilation interfaces II.

5. The gas safety valve according to claim 4, further comprising a temperature sensor, a gas concentration sensor and an electronic control module, wherein the electronic control module is mounted on the top of the housing I, the temperature sensor and the gas concentration sensor are mounted beside the gas passage, the solenoid valve is externally connected with a power supply I, and the electronic control module comprises:

the power supply II is used for supplying power to the singlechip;

the single chip microcomputer receives signals of the temperature sensor and the gas concentration sensor, judges whether the temperature and the gas concentration exceed preset thresholds or not, and sends a power-off signal to a power supply I of the electromagnetic valve if the temperature and the gas concentration exceed the preset thresholds; the single chip microcomputer is electrically connected with the power supply II;

and the wireless communication module is used for transmitting the temperature information, the gas concentration information and the judgment result of the singlechip to the remote client in real time, and the singlechip is in wireless communication with the remote client through the wireless communication module.

6. The gas safety valve of claim 5, wherein: the single chip microcomputer is 51.

7. A gas safety valve according to claim 3, wherein: and the outer surfaces of the shell I and the shell II in the same direction are provided with mounting connecting frames, and the mounting connecting frames are provided with a plurality of mounting holes.

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