CN218480210U

CN218480210U - Air charging device

Info

Publication number: CN218480210U
Application number: CN202221985875.8U
Authority: CN
Inventors: 孙科; 沈云奇; 高宁丽
Original assignee: Ningbo Sanan Valve Manufacture Co ltd
Current assignee: Ningbo Sanan Valve Manufacture Co ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2023-02-14
Anticipated expiration: 2032-07-29

Abstract

The application discloses an inflation device, which comprises a valve body and an inflation connector, wherein the valve body is suitable for being connected with a piece to be inflated, the inflation connector is suitable for being connected with an air source, air in the air source is suitable for flowing into the piece to be inflated, the valve body and the inflation connector are arranged in a split mode and are detachably connected, a check assembly is arranged between the valve body and the inflation connector, and the air in the air source can push the check assembly open and flow into the piece to be inflated; when the gas in the member to be filled is full, the check assembly is suitable for automatically returning and limiting the gas in the member to be filled to flow out. This application sets up the non return subassembly between valve body and inflation joint, when guaranteeing normal gas filling, in case gaseous being full of, the non return subassembly just can self return, realizes automatic control, and it is high to have degree of automation, and working strength is low with the high advantage of work efficiency to this application has still adopted valve body and inflation joint components of a whole that can function independently to set up and can dismantle the technical means of being connected, thereby the convenient maintenance and the advantage of changing to the non return subassembly.

Description

Air charging device

Technical Field

The application relates to the technical field of inflating equipment, in particular to an inflating device.

Background

At present often can set up an aerating device between the air supply and waiting to fill when carrying out the inflation operation, realize the control to inflating work through aerating device, but present aerating device adopts manual control's mode mostly, and degree of automation is low, leads to working strength big and inefficiency.

Disclosure of Invention

The utility model aims to provide an degree of automation is high, reduces working strength and increases work efficiency's aerating device.

In order to achieve the above purposes, the technical scheme adopted by the application is as follows: an inflation device comprises a valve body and an inflation connector, wherein the valve body is suitable for being connected with a to-be-inflated piece, the inflation connector is suitable for being connected with a gas source, gas in the gas source is suitable for flowing into the to-be-inflated piece, the valve body and the inflation connector are arranged in a split mode and are detachably connected, a check assembly is arranged between the valve body and the inflation connector, and the gas in the gas source can prop against the check assembly and flow into the to-be-inflated piece; when the gas in the member to be filled is full, the check assembly is suitable for automatically returning and limiting the gas in the member to be filled to flow out.

At the initial stage of aerifing, atmospheric pressure in the air supply is greater than the atmospheric pressure in treating the piece of filling, and because the existence of atmospheric pressure difference, gaseous in the air supply can push up non return subassembly and flow into in treating the piece of filling, and gaseous when treating in the piece of filling slowly increases, atmospheric pressure also increases thereupon, the difference of atmospheric pressure in the air supply and the atmospheric pressure in treating the piece of filling reduces thereupon, thereby make the gaseous power of pushing up non return subassembly in the air supply littleer and less, until can not open non return subassembly to the top, at this moment, non return subassembly just can self return, thereby the disconnection air supply with treat the gaseous exchange between the piece of filling, and even break off the air supply, gaseous in treating the piece of filling also can't push up non return subassembly because of the reason of direction, thereby alright realize restricting and treat the gaseous outflow in the piece of filling.

Preferably, a first air passage communicated with the piece to be inflated is arranged in the valve body, a second air passage communicated with the air source is arranged in the inflation joint, the check assembly comprises a valve core and a spring, a circulation groove communicated with the first air passage is arranged at the rear end of the interior of the valve core, and a first air port communicated with the second air passage and the circulation groove is arranged on the side wall of the valve core; the spring is arranged in the circulation groove, two ends of the spring respectively abut against the inner wall of the valve core and the inner wall of the valve body, and under the condition of no external force, the front end of the valve core is suitable for being inserted into the second air passage under the driving of the spring and is connected with the inner wall of the second air passage in a sealing mode, so that the second air passage is isolated. The structure is used for realizing automatic stop after full filling on the premise of not obstructing normal inflation work.

As another preferable mode, a positioning piece is fixedly arranged in the circulation groove, the positioning piece is suitable for being inserted into the spring, and the outer side wall of the positioning piece is abutted against the inner side wall of the spring, so that the positioning piece is suitable for supporting the spring; the positioning piece is of a hollow structure, and a second air port communicated with the inside of the positioning piece is formed in the outer wall of the positioning piece. The structure is used for prolonging the service life of the spring.

Further preferably, the front end of the valve core and the middle end of the second air passage matched with the valve core are in a matched circular truncated cone-shaped structure. The above structure serves to restrict the axial forward movement of the spool, and once the axial rearward movement of the spool occurs, the second gas passage is in an open state.

Further preferably, a groove portion is formed in the front end face of the valve element, and a first sealing ring is arranged in the groove portion. The structure is used for increasing the air tightness when the valve core is connected with the second air channel.

Further preferably, the bottom end of the second air passage is expanded outwards to form an air chamber communicated with the first air port. The above structure is used for providing a space for gas circulation.

Further preferably, the top end of the valve body is suitable for being inserted into the bottom end of the inflation connector, and the valve body is in interference fit with the inflation connector. The structure reliably ensures the stability of the valve body when the valve body is connected with the inflation connector.

Further preferably, the cross section of the top end of the valve body is of a convex structure, the bottom end face of the inflation connector abuts against the bottom face of the top end of the valve body, and a second sealing ring is arranged between the bottom end of the inflation connector and the top end of the valve body. The structure reliably ensures the air tightness when the valve body is connected with the inflation connector.

Preferably, the inflation connector is externally sleeved with a dustproof sleeve, the dustproof sleeve is provided with an air inlet, and the air inlet can be used for injecting air into the inflation connector by the air source. The structure effectively avoids excessive dust from entering the inflation connector.

Further preferably, the dustproof sleeve is fixedly connected with the inflation connector, and a handle is arranged on the outer wall of the dustproof sleeve. The structure is used for being convenient to take.

Compared with the prior art, the beneficial effect of this application lies in:

this application has adopted the technical means who sets up the non return subassembly between valve body and inflation joint, and when the air supply and the effort of treating the atmospheric pressure difference formation between filling the non return subassembly can be backed down, can realize normally aerifing, otherwise, the non return subassembly just can self return, thereby the disconnection air supply with treat the gas exchange between filling and can prevent to treat the gas reverse outflow in filling, realize automatic control, it is high to have degree of automation, the low advantage with work efficiency of working strength is high, and this application has still adopted the valve body to set up and can dismantle the technical means who is connected with inflation joint components of a whole that can function independently, thereby the convenience is to the maintenance of non return subassembly and the advantage of change.

Drawings

FIG. 1 is a schematic view of the present application showing the closed state of the inflator;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a schematic view of the inflator device of the present application in an open position;

fig. 4 is a partially enlarged view of fig. 3.

In the figure: 1. a valve body; 11. a first air passage; 2. an inflation joint; 21. a second air passage; 211. a gas chamber; 3. a check assembly; 31. a valve core; 311. a circulation tank; 312. a first gas port; 313. a groove part; 32. a spring; 33. a positioning member; 331. a second gas port; 4. a first seal ring; 5. a dust-proof sleeve; 51. an air inlet; 6. a handle; 7. and a second seal ring.

Detailed Description

The present application is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment.

In the description of the present application, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be construed as limiting the specific scope of protection of the present application.

It is noted that the terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

The terms "comprises," "comprising," and "having," and any variations thereof, in the description and claims of this application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

As shown in fig. 1-4, the preferred embodiment of the present application is:

an inflation device comprises a valve body 1 and an inflation connector 2, wherein the valve body 1 is suitable for being connected with a piece to be inflated, the inflation connector 2 is suitable for being connected with an air source, air in the air source is suitable for flowing into the piece to be inflated, the valve body 1 and the inflation connector 2 are arranged in a split mode and are detachably connected, a check assembly 3 is arranged between the valve body 1 and the inflation connector 2, and the air in the air source can push the check assembly 3 open and flow into the piece to be inflated; the non-return assembly 3 is adapted to return automatically and restrict the outflow of gas from the member to be inflated when the latter is full of gas.

The invention aims to solve the problems that a check assembly 3 is arranged between a valve body 1 and an inflation connector 2, the check assembly 3 can be pushed open by gas in a gas source on one hand to realize normal inflation, and on the other hand, the check assembly has an automatic return function, and can automatically block an air passage after inflation is finished so as to realize automatic control.

In order to realize the above function of the check assembly 3, as shown in fig. 1-2, in the present embodiment, a first air passage 11 capable of communicating with a to-be-inflated member is arranged in the valve body 1, a second air passage 21 capable of communicating with an air source is arranged in the inflation connector 2, the check assembly 3 includes a valve core 31 and a spring 32, a flow groove 311 communicating with the first air passage 11 is arranged at the rear end of the interior of the valve core 31, and a first air port 312 communicating with the second air passage 21 and the flow groove 311 is arranged on the side wall of the valve core 31; the spring 32 is arranged in the circulation groove 311, and two ends of the spring 32 respectively abut against the inner wall of the valve core 31 and the inner wall of the valve body 1, and under the state of no external force, the front end of the valve core 31 is suitable for being inserted into the second air passage 21 and being in sealing connection with the inner wall of the second air passage 21 under the driving of the spring 32, so that the second air passage 21 is blocked.

As shown in fig. 2 and 4, the working principle of the present embodiment is as follows:

because the air flow always flows from high pressure to low pressure in the same plane, the air pressure in the member to be inflated is zero at the initial stage of inflation, the air pressure in the air source is far greater than zero, and the air in the second air passage 21 can push open the valve core 31 to flow into the first air passage 11 by the acting force formed by the air pressure difference, and the air pressure in the member to be inflated is increased along with the gradual increase of the flowing air, the air pressure in the air source and the air pressure difference in the member to be inflated are reduced along with the gradual increase of the flowing air, and the air pressure difference is in direct proportion to the formed acting force, so the force of the air push valve core 31 in the second air passage 21 is smaller and smaller, the valve core 31 cannot be opened until the top, namely, when the gas in the to-be-inflated piece is filled, at the moment, the valve core 31 can automatically return under the action of the spring 32, namely, the valve core is in sealing connection with the middle end of the second air passage 21, so that the gas exchange between the first air passage 11 and the second air passage 21 is disconnected, even if the gas source is disconnected at the moment, the gas pressure in the to-be-inflated piece is greater than the external atmospheric pressure, but due to the direction, the acting force formed by the gas pressure in the to-be-inflated piece can only stretch the spring 32, namely, the separation effect of the valve core 31 is enhanced, the valve core 31 cannot be opened by the top, and the situation of reverse transmission can be avoided.

It is worth mentioning that, valve body 1 in this embodiment sets up and can dismantle the connection for the components of a whole that can function independently with gas charging connection 2, compares in traditional integral type setting, and split type setting possesses the detachable function to make when inside needs clearance, perhaps when the part in non return subassembly 3 needs to be changed, for example the elasticity of spring 32 is not enough constantly, can take valve body 1 and gas charging connection 2 apart and carry out follow-up operation, and is comparatively convenient.

As shown in fig. 2, in the present embodiment, a positioning member 33 is further fixedly disposed in the flow channel 311, the positioning member 33 is adapted to be inserted into the spring 32, and an outer side wall of the positioning member 33 abuts against an inner side wall of the spring 32, so as to be adapted to support the spring 32; the positioning member 33 is hollow, and a second air port 331 is disposed on an outer wall of the positioning member 33 and communicated with the inside thereof. Because the gas flow direction is perpendicular to the axis of the spring 32 when the gas flows into the first gas port 312, and the spring 32 in the check assembly 3 is disposed with a gap with the valve core 31 to reduce friction, under the action of the gas flow, a deviation may occur, thereby causing a distortion, which may result in shortening the service life of the spring 32, and in this embodiment, the positioning member 33 may effectively avoid the above-mentioned situation, and reliably ensure that the spring 32 only performs axial stretching and compressing movements, and, in order to ensure the normal movement of the gas flow, the positioning member 33 is of a hollow structure, i.e., its inside is a flow channel 311, and its outside is provided with a second gas port 331 communicating with the internal flow channel 311, so that the gas in the second gas channel 21 may still flow into the flow channel 311.

It is worth integratedly, in this embodiment, the front end of the valve core 31 and the middle end of the second air duct 21 matched with the front end are in a matched circular truncated cone-shaped structure. The structure is used for limiting the axial forward movement of the valve core 31, and the air tightness of the connection between the front end of the valve core 31 and the middle end of the second air channel 21 can be higher through offsetting.

Further, in the present embodiment, a groove portion 313 is provided on the front end surface of the valve body 31, and the first seal ring 4 is provided in the groove portion 313. When the front end of the valve core 31 is abutted against the middle end of the second air channel 21, the first sealing ring 4 is elastically deformed under the action of pressure, so that the air tightness is effectively increased.

In addition, in order to ensure the normal flow of the gas, in the present embodiment, the bottom end of the second air duct 21 is expanded outward to form an air chamber 211 communicated with the first air port 312. The above structure is used to leave a space for circulation of gas.

Moreover, in the present embodiment, the top end of the valve body 1 is adapted to be inserted into the bottom end of the gas charging connector 2, and the valve body 1 is in interference fit with the gas charging connector 2. The above structure is used to ensure the stability and airtightness of the connection between the valve body 1 and the inflation connector 2.

In addition, in order to further improve the air tightness between the valve body 1 and the inflation connector 2, in this embodiment, the cross section of the top end of the valve body 1 is a convex structure, the bottom end surface of the inflation connector 2 abuts against the bottom surface of the top end of the valve body 1, and a second sealing ring 7 is arranged between the bottom end of the inflation connector 2 and the top end of the valve body 1. Because the gap between the valve body 1 and the inflation connector 2 is directly communicated with the second air channel 21, the air tightness between the valve body 1 and the inflation connector 2 is particularly important, and the air tightness can be effectively ensured by the structure.

In order to ensure the cleanness of the interior of the inflator and prevent the entry of excessive dust, as shown in fig. 1 and 3, in the present embodiment, a dust cap 5 is sleeved on the inflation connector 2, an air inlet 51 is provided on the dust cap 5, and the air inlet 51 can supply air to inject the air into the inflation connector 2. The structure ensures the normal connection of the air source and the inflation connector 2 and can also play a dustproof effect.

Further, for the convenience of carrying this aerating device of user, in this embodiment, the dirt proof boot 5 with aerify and connect 2 fixed connection, and be equipped with handle 6 on the 5 outer walls of dirt proof boot. The user can directly draw this aerating device through handle 6, and is comparatively convenient.

The foregoing has described the general principles, essential features, and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are merely illustrative of the principles of the application, but that various changes and modifications may be made without departing from the spirit and scope of the application, and these changes and modifications are intended to be within the scope of the application as claimed. The scope of protection claimed by this application is defined by the following claims and their equivalents.

Claims

1. An inflation device comprising a valve body and an inflation fitting, the valve body adapted to be connected to a member to be inflated, the inflation fitting adapted to be connected to a gas source, the gas in the gas source adapted to flow into the member to be inflated, wherein: the valve body and the inflation connector are arranged in a split manner and are detachably connected, a check assembly is arranged between the valve body and the inflation connector, and gas in the gas source can push the check assembly open and flow into the piece to be inflated; when the gas in the member to be filled is full, the check assembly is suitable for automatically returning and limiting the gas in the member to be filled to flow out.

2. An inflator device according to claim 1, wherein: a first air passage which can be communicated with the piece to be inflated is arranged in the valve body, a second air passage which can be communicated with the air source is arranged in the inflation connector, the non-return assembly comprises a valve core and a spring, a circulation groove communicated with the first air passage is arranged at the rear end of the interior of the valve core, and a first air port communicated with the second air passage and the circulation groove is arranged on the side wall of the valve core; the spring is arranged in the circulation groove, two ends of the spring respectively abut against the inner wall of the valve core and the inner wall of the valve body, and under the condition of no external force, the front end of the valve core is suitable for being inserted into the second air passage under the driving of the spring and is connected with the inner wall of the second air passage in a sealing mode, so that the second air passage is isolated.

3. An inflator device according to claim 2, wherein: a positioning piece is fixedly arranged in the circulation groove and is suitable for being inserted into the spring, and the outer side wall of the positioning piece is abutted against the inner side wall of the spring so as to be suitable for supporting the spring; the positioning piece is of a hollow structure, and a second air port communicated with the interior of the positioning piece is formed in the outer wall of the positioning piece.

4. An inflator according to claim 2 wherein: the front end of the valve core and the middle end of the second air passage matched with the valve core are of adaptive round table structures.

5. An inflator according to claim 2 wherein: the valve core is characterized in that a groove portion is formed in the front end face of the valve core, and a first sealing ring is arranged in the groove portion.

6. An inflator according to claim 2 wherein: the bottom end of the second air passage expands outwards to form an air chamber communicated with the first air port.

7. An inflator device according to claim 1, wherein: the top end of the valve body is suitable for being inserted into the bottom end of the inflation connector, and the valve body is in interference fit with the inflation connector.

8. An inflator according to claim 7 wherein: the cross section of the top end of the valve body is of a convex structure, the bottom end face of the inflation connector abuts against the bottom face of the top end of the valve body, and a second sealing ring is arranged between the bottom end of the inflation connector and the top end of the valve body.

9. An inflator device according to claim 1, wherein: the air inflation connector overcoat is equipped with the dirt proof boot, be equipped with the air inlet on the dirt proof boot, the air inlet can supply the air supply pours into gas into in the air inflation connector.

10. An inflator device according to claim 9, wherein: the dustproof sleeve is fixedly connected with the inflation connector, and a handle is arranged on the outer wall of the dustproof sleeve.