CN214222330U - Safety self-locking structure of high-pressure hydrogenation gun - Google Patents
Safety self-locking structure of high-pressure hydrogenation gun Download PDFInfo
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- CN214222330U CN214222330U CN202022979504.6U CN202022979504U CN214222330U CN 214222330 U CN214222330 U CN 214222330U CN 202022979504 U CN202022979504 U CN 202022979504U CN 214222330 U CN214222330 U CN 214222330U
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Abstract
The utility model discloses a high pressure hydrogenation rifle safety auto-lock structure is provided with a radial mounting hole along circumference at least on the rifle core casing of high pressure hydrogenation rifle, and all radial mounting holes are linked together through the gas filling passageway in admission passage and the hydrogenation rifle, are provided with a auto-lock seal assembly in every radial mounting hole, and every auto-lock seal assembly can follow corresponding radial mounting hole and move contact rifle head shells inner wall, and can be with corresponding radial mounting hole contact seal, and every auto-lock seal assembly includes: the sealing pin is arranged in the corresponding radial mounting hole, a circle of annular positioning groove is formed in the outer wall of the sealing pin, an O-shaped sealing ring and an opening gasket are sequentially nested in the annular positioning groove along the axial direction of the sealing pin, and the O-shaped sealing ring is located on one side close to the axis of the gun core shell. The utility model has the advantages of can improve the safety in utilization under the hydrogenation rifle operating condition.
Description
Technical Field
The utility model relates to a high pressure hydrogenation rifle technical field, concretely relates to high pressure hydrogenation rifle safety auto-lock structure.
Background
Along with the increasing consumption of fossil energy such as petroleum, natural gas, coal and the like, the reserves of the fossil energy are gradually reduced and will be exhausted in the last day, the development of clean energy for replacing the fossil energy is one of the subjects which are disputed and researched by countries in the world, and the research and the development of clean and pollution-free fuel cells are imperative. A fuel cell is a chemical device that directly converts chemical energy of fuel into electrical energy, and uses fuel and oxygen as raw materials. If hydrogen is used as fuel, the combustion product of the hydrogen is only water, so that the hydrogen-rich fuel has no pollution to the environment, can be recycled and is ideal secondary energy. Hydrogen is abundant in the global environment, and development and utilization of hydrogen energy as an efficient and environment-friendly clean energy source become a trend. The hydrogen is gas with the minimum known density in the world and is easy to escape, the hydrogen still can be stored in a high-pressure container for a long time in the future, and the high-pressure gas is transferred from the high-pressure container of the hydrogen storage station to a hydrogen storage bottle of a fuel cell through a hydrogenation gun when the hydrogen is used, and particularly the safety protection work needs to be done in the process. The hydrogenation gun used in the market at present is connected with a breaking valve and a hydrogenation machine in series, the breaking valve is positioned between the hydrogenation gun and the hydrogenation machine, and the connection mode can seal the hydrogenation machine and high-pressure gas in a hose connected with the hydrogenation gun in time when the breaking valve is broken.
The structure of the currently used hydrogenation gun comprises: the gun head comprises a gun head shell, a gun head sleeve is in threaded connection with the front end of the gun head shell, a gun core shell is arranged in an inner cavity of the gun head shell, a valve seat sleeve and a gun core are sequentially arranged in the inner cavity of the gun core shell from front to back, a claw piece is arranged at the front end of the gun core shell, the rear end of the gun core shell is in threaded connection with a gun body assembly, a valve seat is arranged in the valve seat sleeve, a valve core thimble penetrates through the valve seat, a first spring is arranged between the valve core thimble and the gun core, the valve core thimble always tends to move forwards to be in contact with the valve seat sleeve to block a gas filling channel under the action of the elastic force of the first spring, a pressing ring is arranged between the rear end of the gun head shell and the gun body assembly, the pressing ring is movably sleeved outside the gun body assembly and fixedly connected with the gun head shell through a clamp spring, a second spring is arranged between the pressing ring and the gun core shell, and the pressing ring enable the gun head shell to always have a function of moving backwards relative to the gun core shell, The claw piece tends to loosen the hydrogenation port, a push ring is arranged at the rear end of the press ring, and the push ring can be matched with the gun body assembly to push the press ring and the gun head shell to move forwards to overcome the elastic force of the second spring so that the claw piece clamps the hydrogenation port.
When in use, when the hydrogenation gun head is correctly connected with the hydrogenation port on the fuel cell automobile, the handle on the gun body component is pushed, the push ring is forced along the axial direction of the hydrogenation gun head by the lever principle, under the push of the force, the push ring, the press ring, the gun head shell and the gun head sleeve can overcome the elastic force of the second spring and move forwards relative to the gun core shell, in the process that the gun head sleeve moves forwards, the annular step in the inner cavity of the gun head sleeve acts on a section of inclined plane of the claw sheet, the claw sheets are folded inwards and closed together to tightly grasp the hydrogenation port, meanwhile, the valve core thimble is pushed reversely by the hydrogenation port to move backwards by overcoming the elastic force of the first spring, so that the valve core thimble is separated from the valve seat sleeve to open the gas filling channel, the hydrogenation gun feeds back a signal for correctly connecting the hydrogenation port to the hydrogenation machine, and the control of the hydrogenation machine starts to introduce high-pressure gas into the hydrogenation port through the gas filling channel of the hydrogenation gun; in the process that the hydrogenation machine injects high-pressure hydrogen into the hydrogenation port through the gas injection channel of the hydrogenation gun, the second spring is always in a compression state, and the extension trend of the second spring enables the gun head shell and the gun core shell to have a relative movement trend. Therefore, the design for improving the safety of the hydrogenation gun is also very important.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can improve hydrogenation rifle safety auto-lock structure of safety in utilization.
In order to achieve the above purpose, the utility model adopts the following technical scheme: high pressure hydrogenation rifle safety auto-lock structure is provided with a radial mounting hole along circumference at least on the rifle core casing of high pressure hydrogenation rifle, and all radial mounting holes are linked together through the gas filling passageway in admission passage and the hydrogenation rifle, are provided with a auto-lock seal assembly in every radial mounting hole, and every auto-lock seal assembly can be followed and is corresponded radial mounting hole and remove contact rifle head shells inner wall, and can be sealed with the contact of corresponding radial mounting hole, and every auto-lock seal assembly includes: the sealing pin is arranged in the corresponding radial mounting hole, a circle of annular positioning groove is formed in the outer wall of the sealing pin, an O-shaped sealing ring and an opening gasket are sequentially nested in the annular positioning groove along the axial direction of the sealing pin, and the O-shaped sealing ring is positioned on one side close to the axis of the gun core shell; when a gas filling channel in the hydrogenation gun is opened and high-pressure gas is introduced into a hydrogenation port, the high-pressure gas in the gas filling channel can enter each radial mounting hole on the gun core shell through the gas inlet passage, and the self-locking sealing assembly in each radial mounting hole can move towards the direction far away from the axis of the gun core shell along the corresponding radial mounting hole under the action of the high-pressure gas until the sealing pin in the self-locking sealing assembly is tightly propped against the inner wall of the gun head shell, so that the gun head shell and the gun core shell are locked and fixed to prevent the high-pressure hydrogenation gun from being separated from the hydrogenation port.
Further, aforementioned high pressure hydrogenation rifle safety auto-lock structure, wherein: the specific structure of the intake passage includes: the gas filling device comprises a first radial through hole, an annular gap and a second radial through hole, wherein the first radial through hole is formed in a gun core and communicated with a gas filling channel of a hydrogenation gun, the annular gap is formed between a valve seat sleeve and a gun core shell and communicated with radial mounting holes, the second radial through hole is formed in the valve seat sleeve and communicated with the first radial through hole and the annular gap, and the first radial through hole, the second radial through hole and the annular gap form a gas inlet passage which enables the gas filling channel to be communicated with the radial mounting holes.
Further, aforementioned high pressure hydrogenation rifle safety auto-lock structure, wherein: three radial mounting holes are formed in the gun core shell along the circumferential direction, and the three radial mounting holes are evenly distributed along the circumferential direction.
Further, aforementioned high pressure hydrogenation rifle safety auto-lock structure, wherein: at least one screw hole and at least one unthreaded hole are arranged at the position of a gun core shell which is in threaded connection with a gun body component, the screw hole and the unthreaded hole are uniformly distributed along the circumferential direction, and a set screw used for locking the gun body component which is in threaded connection with the gun core shell is arranged in each screw hole.
Through the implementation of the above technical scheme, the beneficial effects of the utility model are that: (1) when high-pressure gas is injected into the gun body, the added self-locking safety structure can prevent the hydrogenation gun from being separated from the hydrogenation port, so that the accident probability is reduced, and the use safety is improved; (2) the power generated by the pre-expansion of the high-pressure gas is fully utilized, the original structural characteristics of the hydrogenation gun are fully utilized, and the safety of the hydrogenation gun in the working state is improved on the premise of ensuring the air tightness requirement of the hydrogenation gun; and can be automatically unlocked after the high-pressure gas is exhausted; (3) the structure is compact, and the overall external dimension of the hydrogenation gun is not changed by the added self-locking safety structure; (4) in the process of filling high-pressure gas, the high-pressure gas is introduced into each radial mounting hole in the gun core shell through the first radial through hole in the gun core, the second radial through hole in the valve seat sleeve and the annular gap between the valve seat sleeve and the gun core shell, and then acts as a self-locking sealing assembly in each radial mounting hole, the path of the gas channel is long and tortuous, the local pressure sudden change is effectively prevented, and the safety of the hydrogenation gun in the working state is further improved.
Drawings
Fig. 1 is the structure schematic diagram of the safety self-locking structure of the high-pressure hydrogenation gun of the utility model.
Fig. 2 is an enlarged schematic view of a portion H shown in fig. 1.
Fig. 3 is a schematic view of the gun head housing, the gun core housing and the self-locking sealing assembly in the left side view of fig. 1.
Fig. 4 is a schematic structural view of the self-locking sealing assembly.
Fig. 5 is a schematic structural view of a core case.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.
As shown in fig. 1, fig. 2, fig. 3, fig. 4, and fig. 5, the safety self-locking structure of the high-pressure hydrogenation gun comprises: at least one radial mounting hole 2 is circumferentially arranged on a gun core shell 1 of the high-pressure hydrogenation gun, in the embodiment, three radial mounting holes 2 are circumferentially arranged on the gun core shell 1, and the three radial mounting holes 2 are circumferentially and uniformly distributed; all the radial mounting holes 2 are communicated with a gas filling channel 3 in the hydrogenation gun through a gas inlet passage, and in the embodiment, the specific structure of the gas inlet passage comprises: the gas filling device comprises a first radial through hole 10, an annular gap 12 and a second radial through hole 13, wherein the first radial through hole 10 is arranged on a gun core 9 and communicated with a gas filling channel 3 of a hydrogenation gun, the annular gap 12 is arranged between a valve seat sleeve 11 and a gun core shell 1 and communicated with radial mounting holes 2, the second radial through hole 13 is arranged on the valve seat sleeve 11 and communicated with the first radial through hole 10 and the annular gap 12, and the first radial through hole 10, the second radial through hole 13 and the annular gap 12 jointly form a gas inlet passage which enables the gas filling channel 3 to be communicated with the radial mounting holes 2; be provided with a auto-lock seal assembly in every radial mounting hole 2, every auto-lock seal assembly can be along corresponding radial mounting hole 2 removal contact rifle head housing 4 inner wall and can contact sealedly with corresponding radial mounting hole 2, every auto-lock seal assembly includes: the sealing pin 5 is arranged in the corresponding radial mounting hole 2, a circle of annular positioning groove 6 is arranged on the outer wall of the sealing pin 5, an O-shaped sealing ring 7 and an opening gasket 8 are sequentially nested in the annular positioning groove 6 along the axial direction of the sealing pin 5, and the O-shaped sealing ring 7 is positioned on one side close to the axis of the gun core shell 1; when a gas filling channel 3 in the hydrogenation gun is opened and high-pressure gas is introduced into a hydrogenation port, the high-pressure gas in the gas filling channel 3 sequentially enters each radial mounting hole 2 on the gun core shell 1 through a first radial through hole 10, a second radial through hole 13 and an annular gap 12, a self-locking sealing assembly in each radial mounting hole 2 moves towards the direction far away from the axis of the gun core shell 1 along the corresponding radial mounting hole 2 under the action of the high-pressure gas until a sealing pin 5 in the self-locking sealing assembly is tightly pressed against the inner wall of the gun head shell 4, so that the gun head shell 4 and the gun core shell 1 are locked and fixed, the gun head shell 4 and the gun core shell 1 are prevented from moving relative to each other, and the high-pressure hydrogenation gun is prevented from being separated from the hydrogenation port; in this embodiment, at least one threaded hole 15 and at least one unthreaded hole 16 are formed in the position of the gun core housing 1 in threaded connection with the gun body assembly 14, the threaded holes 15 and the unthreaded holes 16 are uniformly distributed along the circumferential direction, a set screw 17 for locking the gun body assembly 14 and the gun core housing 1 which are in threaded connection is arranged in each threaded hole 15, the gun body assembly 14 and the gun core housing 1 can be connected more firmly through the set screw, the use stability and the safety of the hydrogenation gun are improved, and the unthreaded hole 16 is used for inserting a positioning column of a hook head wrench when the gun body assembly 14 and the gun core housing 1 are in threaded connection;
when the hydrogenation gun head is correctly connected with a hydrogenation port on a fuel cell automobile, a handle on a gun body assembly 14 is pushed, the push ring 18 is forced along the axial direction of the hydrogenation gun head by a lever principle, under the pushing action of the force, the push ring 18, the press ring 19, the gun head shell 4 and the gun head sleeve 20 can overcome the elastic force of the second spring 21 to move forwards relative to the gun core shell 1, in the process that the gun head sleeve 20 moves forwards, an annular step in the inner cavity of the gun head sleeve 20 can act on a section of inclined plane of the claw 22, so that the claw 22 is folded inwards and closed together to grasp the hydrogenation port, meanwhile, the valve core thimble 23 can be pushed reversely by the hydrogenation port to overcome the elastic force of the first spring 24 to move backwards, so that the valve core thimble 23 is separated from the valve seat sleeve 11 to open the gas filling channel 3, and at the moment, the hydrogenation gun feeds back a signal correctly connected with the hydrogenation port to the hydrogenation machine, high-pressure gas is introduced into a hydrogenation port through a gas filling channel of a hydrogenation gun from the control of the hydrogenation machine;
after high-pressure hydrogen enters a gas filling channel 3 in the hydrogenation gun, the high-pressure gas in the gas filling channel 3 sequentially enters the radial mounting holes 2 on the gun core shell 1 through the first radial through hole 10, the second radial through hole 13 and the annular gap 12, a self-locking sealing assembly in each radial mounting hole 2 moves along the corresponding radial mounting hole 2 in the direction far away from the axis of the gun core shell 1 under the action of the high-pressure gas until a sealing pin 5 in the self-locking sealing assembly is tightly pressed on the inner wall of the gun head shell 4 to generate pressure along the axis of the self-locking sealing assembly and pointing to the axis far away from the axis of the gun head shell 4, and static friction force along the axial direction of the gun head shell 4 is generated under the action of the pressure and can block the movement of the gun head shell 4 relative to the gun core shell 1, so that the gun head shell 4 and the gun core shell 1 are locked and fixed, and the gun head shell 4 and the gun core shell 1 are prevented from moving relatively, thereby preventing the claw piece 22 from opening and further preventing the high-pressure hydrogenation gun from accidentally separating from the hydrogenation port.
The utility model has the advantages that: (1) when high-pressure gas is injected into the gun body, the added self-locking safety structure can prevent the hydrogenation gun from being separated from the hydrogenation port, so that the accident probability is reduced, and the use safety is improved; (2) the power generated by the pre-expansion of the high-pressure gas is fully utilized, the original structural characteristics of the hydrogenation gun are fully utilized, and the safety of the hydrogenation gun in the working state is improved on the premise of ensuring the air tightness requirement of the hydrogenation gun; and can be automatically unlocked after the high-pressure gas is exhausted; (3) the structure is compact, and the overall external dimension of the hydrogenation gun is not changed by the added self-locking safety structure; (4) in the process of filling high-pressure gas, the high-pressure gas is introduced into each radial mounting hole in the gun core shell through the first radial through hole in the gun core, the second radial through hole in the valve seat sleeve and the annular gap between the valve seat sleeve and the gun core shell, and then acts as a self-locking sealing assembly in each radial mounting hole, the path of the gas channel is long and tortuous, the local pressure sudden change is effectively prevented, and the safety of the hydrogenation gun in the working state is further improved.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any modifications or equivalent changes made in accordance with the technical spirit of the present invention are also within the scope of the present invention.
Claims (4)
1. High pressure hydrogenation rifle safety auto-lock structure, its characterized in that: at least one radial mounting hole is formed in the gun core shell of the high-pressure hydrogenation gun along the circumferential direction, all the radial mounting holes are communicated with a gas filling channel in the hydrogenation gun through a gas inlet passage, a self-locking sealing assembly is arranged in each radial mounting hole, each self-locking sealing assembly can move along the corresponding radial mounting hole to be in contact with the inner wall of the gun head shell and can be in contact sealing with the corresponding radial mounting hole, and each self-locking sealing assembly comprises: the sealing pin is arranged in the corresponding radial mounting hole, a circle of annular positioning groove is formed in the outer wall of the sealing pin, an O-shaped sealing ring and an opening gasket are sequentially nested in the annular positioning groove along the axial direction of the sealing pin, and the O-shaped sealing ring is positioned on one side close to the axis of the gun core shell; when a gas filling channel in the hydrogenation gun is opened and high-pressure gas is introduced into a hydrogenation port, the high-pressure gas in the gas filling channel can enter each radial mounting hole on the gun core shell through the gas inlet passage, and the self-locking sealing assembly in each radial mounting hole can move towards the direction far away from the axis of the gun core shell along the corresponding radial mounting hole under the action of the high-pressure gas until the sealing pin in the self-locking sealing assembly is tightly propped against the inner wall of the gun head shell, so that the gun head shell and the gun core shell are locked and fixed to prevent the high-pressure hydrogenation gun from being separated from the hydrogenation port.
2. The high-pressure hydrogenation gun safety self-locking structure according to claim 1, characterized in that: the specific structure of the intake passage includes: the gas filling device comprises a first radial through hole, an annular gap and a second radial through hole, wherein the first radial through hole is formed in a gun core and communicated with a gas filling channel of a hydrogenation gun, the annular gap is formed between a valve seat sleeve and a gun core shell and communicated with radial mounting holes, the second radial through hole is formed in the valve seat sleeve and communicated with the first radial through hole and the annular gap, and the first radial through hole, the second radial through hole and the annular gap form a gas inlet passage which enables the gas filling channel to be communicated with the radial mounting holes.
3. The high-pressure hydrogenation gun safety self-locking structure according to claim 1 or 2, characterized in that: three radial mounting holes are formed in the gun core shell along the circumferential direction, and the three radial mounting holes are evenly distributed along the circumferential direction.
4. The high-pressure hydrogenation gun safety self-locking structure according to claim 3, characterized in that: at least one screw hole and at least one unthreaded hole are arranged at the position of a gun core shell which is in threaded connection with a gun body component, the screw hole and the unthreaded hole are uniformly distributed along the circumferential direction, and a set screw used for locking the gun body component which is in threaded connection with the gun core shell is arranged in each screw hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022979504.6U CN214222330U (en) | 2020-12-08 | 2020-12-08 | Safety self-locking structure of high-pressure hydrogenation gun |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022979504.6U CN214222330U (en) | 2020-12-08 | 2020-12-08 | Safety self-locking structure of high-pressure hydrogenation gun |
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| CN214222330U true CN214222330U (en) | 2021-09-17 |
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| CN202022979504.6U Active CN214222330U (en) | 2020-12-08 | 2020-12-08 | Safety self-locking structure of high-pressure hydrogenation gun |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116696879A (en) * | 2023-07-24 | 2023-09-05 | 宁波市北仑艾唯特机械制造有限公司 | Hydraulic valve block assembly |
-
2020
- 2020-12-08 CN CN202022979504.6U patent/CN214222330U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116696879A (en) * | 2023-07-24 | 2023-09-05 | 宁波市北仑艾唯特机械制造有限公司 | Hydraulic valve block assembly |
| CN116696879B (en) * | 2023-07-24 | 2023-11-14 | 宁波市北仑艾唯特机械制造有限公司 | Hydraulic valve block assembly |
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