CN201277167Y - Air pump pressure regulating mechanism with disconnection function at pre-determined pressure, and air pump - Google Patents
Air pump pressure regulating mechanism with disconnection function at pre-determined pressure, and air pump Download PDFInfo
- Publication number
- CN201277167Y CN201277167Y CNU200820152953XU CN200820152953U CN201277167Y CN 201277167 Y CN201277167 Y CN 201277167Y CN U200820152953X U CNU200820152953X U CN U200820152953XU CN 200820152953 U CN200820152953 U CN 200820152953U CN 201277167 Y CN201277167 Y CN 201277167Y
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- piston
- air pump
- cylindrical shell
- connecting head
- controlling device
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Abstract
The utility model provides an air pump air pressure regulating device capable of instantly breaking after reaching the preset pressure, wherein the contact portion of a piston and a barrel body is sealed at least when in work, and the piston has an original position in the barrel body under non-working state, the external end of a guide rod capable of penetrating out from the barrel body can movably penetrate through a guide sleeve, a limiting structure is used to prevent the piston from moving to the air inlet end of the regulating device and limit the piston in the original position, a spring can provide elastic force which can act on the piston for making the piston move to the original position, a connector is hermetically connected with the barrel body, a connecting member is connected with the connector, and the connector, the connecting member and the limiting structure can provide an air inlet channel to facilitate air to enter into the limited inner cavity between the piston and the connector from the connecting member for forming air pressure acting on the piston, thereby making the piston drive the guide rod to move along the guide sleeve. The utility model further provides an air pump with the regulating device.
Description
Technical field
The utility model relates to a kind of air pump and reaches barometric control unit and a kind of air pump that inflation pressure just makes air pump stop to inflate.
Background technique
In the air outlet of air pump a kind of sniffer is set, can learns by this sniffer whether inflation pressure reaches required pressure.Common sniffer has two kinds, and a kind of is mechanical watch, and another kind is the electromic digit display barometer.The air outlet of air pump is connected with mechanical watch, during inflation, when the air pressure that the user observes the air outlet by mechanical watch reaches required pressure, manually turns off the switch of air pump, finishes inflation.The air outlet of air pump is connected with the electromic digit display barometer, can preestablish the barometric inflation pressure value of electromic digit display, in case when the air pressure of the air outlet of air pump reaches this inflation pressure value, just can make the switch power automatic disconnection, finish inflation by this electromic digit display barometer.
For the operation of the air pump air pressure that adopts mechanical watch to realize to reach predetermined pressure promptly to disconnect, the user will observe the variation of list index always during operation, closes swap switch after arriving required pressure, and it is more tired to operate.For the operation of the air pump air pressure that adopts the electromic digit display barometer to realize to reach predetermined pressure promptly to disconnect, though pressure by air pressure shows that accurately simple to operation, the electronic watch cost is higher, processed complex.
The model utility content
The purpose of this utility model is to provide a kind of controlling device that reaches the air pump air pressure that predetermined pressure promptly disconnects, it has the function of automatic disconnection air pump air pressure, and cost that can be lower substitutes the electromic digit display barometer, and a kind of air pump that comprises this controlling device also is provided.
In order to realize described purpose, the controlling device that reaches the air pump air pressure that predetermined pressure promptly disconnects of the present utility model is characterized in comprising: cylindrical shell, movably be arranged on piston, the guide rod that is connected with piston in the cylindrical shell, be arranged on guide pin bushing in the cylindrical shell, be arranged on the interior limit structure of cylindrical shell, be arranged on the interior Returnning spring of cylindrical shell, connecting head and the link that communicates with the air outlet of air pump as the gas access end of this controlling device.Wherein, the contacting point of piston and cylindrical shell is sealing when work at least, and piston has the home position when off working state in cylindrical shell; The outer end of the extended cylindrical shell of guide rod is passed guide pin bushing movably; Limit structure is used to stop that piston moves and piston is spacing in described home position towards the gas access end of this controlling device; Spring provides the elastic force that acts on the piston, so that piston moves to described home position; Connecting head and cylindrical shell are tightly connected; This link is connected with connecting head; Connecting head, link and limit structure provide gas-entered passageway, so that gas enters the inner chamber that limits between piston and the connecting head and forms and act on atmospheric pressure on the piston from link, move along guide pin bushing thereby make piston drive guide rod.
The described controlling device that reaches the air pump air pressure that predetermined pressure promptly disconnects, its further characteristics are, connecting head, limit structure and link are one, and limit structure is arranged in the cylindrical shell as the inner of connecting head, and link exposes to outside the cylindrical shell as the outer end of connecting head.
The described controlling device that reaches the air pump air pressure that predetermined pressure promptly disconnects, its further characteristics are that spring is nested with on guide rod, and its two ends are resisted against respectively on piston and the guide pin bushing.
The described controlling device that reaches the air pump air pressure that predetermined pressure promptly disconnects, its further characteristics are that described home position is that piston is resisted against the position on the limit structure under the elastic force effect that spring provides.
The described controlling device that reaches the air pump air pressure that predetermined pressure promptly disconnects, its further characteristics are, one end of the relative connecting head of piston is formed with the skirt that can expand outwardly, in case enter gas and increase that the inwall of skirt and cylindrical shell forms sealing behind the air pressure in the described inner chamber from described gas-entered passageway.
The described controlling device that reaches the air pump air pressure that predetermined pressure promptly disconnects, its further characteristics be, the endoporus of described guide pin bushing and the profile of described guide rod are similar in shape.
The described controlling device that reaches the air pump air pressure that predetermined pressure promptly disconnects, its further characteristics be, is formed with the glue groove of inserting glue on the excircle of the inner of connecting head, thereby make connecting head and cylindrical shell bonding.
The described controlling device that reaches the air pump air pressure that predetermined pressure promptly disconnects, its further characteristics are that guide rod is connected with the form of piston by encapsulate.
The described controlling device that reaches the air pump air pressure that predetermined pressure promptly disconnects, its further characteristics are that the outer end of connecting head is to have externally threaded link.
The beneficial effect of aforementioned controlling device is: the give vent to anger position of link with the cylinder of an air pump is connected, so that the inner chamber of barometric control unit communicates with the air outlet of air pump, this air pump comprises a contact switch, after air pump is connected power switch, the main frame of air pump begins inflation, air communication is crossed the inner chamber that connecting head enters into barometric control unit, making piston drive guide rod moves, along with after the air pressure of the air outlet of air pump arrives predetermined pressure, the guide rod contact switch of will conflicting, the power supply of air pump is disconnected, and air pump stops inflation then, and the atmospheric pressure value in the air regulating device is zero, piston is because of the elastic force automatic homing of spring, therefore this controlling device has and utilizes the give vent to anger air pressure of position of air pump to realize the function of automatic disconnection air pump air pressure, and it is simple in structure, and cost that can be lower substitutes the electromic digit display barometer.
In addition, air pump of the present utility model comprises air pump shell, air pump main frame, cylinder and pneumatic head, is characterized in also comprising: contact switch is arranged in the air pump shell; And the controlling device that reaches the air pump air pressure that predetermined pressure promptly disconnects, this controlling device is arranged in the air pump shell, and it comprises: cylindrical shell; Be arranged on the piston in the cylindrical shell movably, the contacting point of piston and cylindrical shell is sealing when work at least, and piston has the home position when off working state in cylindrical shell; The guide rod that is connected with piston; Be arranged on the guide pin bushing in the cylindrical shell, the extended cylindrical shell in the outer end of guide rod also can move up to touching contact switch along guide pin bushing, and after touching contact switch, the power supply of air pump main frame is disconnected; Limit structure is arranged in the cylindrical shell, is used to stop that piston moves and piston is spacing in described home position towards the gas access end of controlling device; Returnning spring is arranged in the cylindrical shell, and the elastic force that acts on the piston is provided, so that piston moves to described home position; Connecting head, itself and cylindrical shell are tightly connected; And the link that communicates with the position of giving vent to anger of cylinder as the gas access end of this controlling device, this link is connected with connecting head; Wherein, connecting head, link and limit structure provide gas-entered passageway, make the air pressure of this inner chamber identical so that gas enters the inner chamber that limits between piston and the connecting head from link, move up to guide rod shake-up contact switch along guide pin bushing thereby make piston drive guide rod with the air pressure of pneumatic head.
The beneficial effect of aforementioned air pump is: after the air pump main frame is connected power switch, the air pump main frame begins inflation, air communication is crossed the inner chamber that connecting head enters into barometric control unit, piston drives guide rod and moves, along be inflated object for example the air pressure in the tire also be after the air pressure of the air outlet of air pump arrives predetermined pressure, the guide rod contact switch of will conflicting, the power supply of air pump main frame is disconnected, then with the pneumatic head of air pump be inflated object and disconnect, atmospheric pressure value in the aforementioned controlling device is zero, piston is because of the elastic force automatic homing of spring, so just realized utilizing that the air pressure of the position of giving vent to anger of air pump realized air pump stops the function of inflating automatically by simple mechanical structure.
Description of drawings
Fig. 1 is an an embodiment's of the present utility model decomposition view.
(a)-(d) among Fig. 2 shown embodiment's shown in Figure 1 assembly process.
Fig. 3 has shown the structural drawing that embodiment shown in Figure 1 is in running order.
(a)-(b) among Fig. 4 shown the embodiment's of a contact switch of the present utility model schematic representation of structure.
Fig. 5 has shown the embodiment's of air pump of the present utility model structural drawing.
Fig. 6 has shown the structural drawing when embodiment shown in Figure 5 is in running order.
Embodiment
Below in conjunction with preferred embodiment the utility model is described in detail, identical in the accompanying drawings label indicates identical part, should be noted that, in description described later, although employed term is to select from public term, but some term then is the claimant to be judged by it and selects, and its detailed meanings should be understood according to the spirit that the utility model desire discloses.
As shown in Figure 1, an embodiment of the present utility model comprises connecting head 1, guide rod 9, piston 2, spring 3, guide pin bushing 4 and shell 5.
Simultaneously with reference to Fig. 1, (d) and Fig. 3 among Fig. 2.Shell 5 is a hollow thin-wall metal cylinder.Piston 2 is that a soft materials is made, and for example is rubber.Guide rod 9 adopts nylon material to make, and guide rod 9 and piston 2 adopt the mode of encapsulate to combine.One end of piston 2 relative connecting heads 1 is formed with the skirt that can expand outwardly, and so in a single day the air pressure from connecting head 2 increases, and the skirt of piston 2 just expands outwardly and is close in shell 5, plays the effect of sealing.Spring 3 is enclosed within on the guide rod 9, and its two ends are resisted against respectively on piston 2 and the guide pin bushing 4.Spring 3 mainly plays a part to make piston 2 to return to the origin-location.Guide rod 9 passes guide pin bushing 4 movably.Guide pin bushing 4 is fixedly installed on the shell 5, the guide pin bushing 4 main leading roles that rise guide rod 9.The profile of the hole of guide pin bushing 4 and guide rod 9 is preferably similar.One end 111 of connecting head 1 is connected with shell 5, and the other end 110 is used for being connected with the air outlet of air pump.End 111 connecting head 1, that be connected with shell 5 is formed with glue groove 11, inserts glue in glue groove 11, and shell 5 back connecting heads 1 are inserted in the end 111 of connecting head 1 and shell 5 just has been fixed together.The end 110 of connecting head 1 can be formed with screw thread.The end 111 of connecting head 1 mainly plays a part spacing piston 2, in addition, the endoporus that communicates of end 111 and end 110 also plays a part the gas of the air outlet of air pump is imported in the shell 1, in other words, these endoporus are as the part inner chamber (remaining part inner chamber can be provided after piston moves) of controlling device.
What be worth one is, the front is to an embodiment's of the present utility model connecting head, guide rod, piston, spring, the shape or the material of guide pin bushing and shell are described in detail, but enforcement of the present utility model is not limited thereto, its connecting head, guide rod, piston, spring, the shape of guide pin bushing and shell and between Placement have multiple modification, for example, connecting head 1 and shell 5 be connected can also be threaded in addition can select the welding, guide pin bushing 4 can also be one-body molded with shell 5, enclose O shape circle on the excircle of piston 2,, so just do not needed its skirt to realize the sealing between piston 2 and the shell 1; For another example, the end 111 of connecting head 1 can also separate formation (manufacture like this and will bother a little) with connecting head 1 in fact; And for example, piston 2 is not limited to make with rubber, with metal make also might as well, obviously, the mode that also is not limited to encapsulate that is connected of guide rod 9 and piston 2 connects, and can be to be threaded, to weld and multiple mode such as engaging; Guide pin bushing 4 is uncertain in fact fixing with shell 5, as long as form the stop portion that a restriction guide pin bushing 4 moves on shell 5, for example forms a closing in structure in the end of shell 5.
When assembling embodiment shown in Figure 1, shown in Fig. 2 (a), fill in guide pin bushing 4 from the left end of shell 5 earlier, (, not needing fixedly guide pin bushing 4 and shell 5) because shell 5 has the closing in structure of end; Shown in Fig. 2 (b), spring 3 is enclosed within (normality of guide rod 9 and piston 2 is for linking together) on the guide rod 9; Shown in Fig. 2 (c), guide rod 9 is being filled in the shell 5 from the left end of shell 5, and made guide rod 9 pass guide pin bushing 4; Shown in Fig. 2 (d), the end 111 of connecting head 1 left end from shell 5 is inserted the shell 1, before inserting, just applied glue in the glue groove of the end 111 of connecting head 1, so just finished embodiment's shown in Figure 1 assembling.
As shown in Figure 3, the end 110 of crossing connecting head 1 when air communication enters, when the air pressure in end 110 and the end 111 puts on power (if the reset condition of spring 2 just is compression) on the piston 2 greater than ambient pressure and spring 3, piston 2 begins to move, pressure spring 3 and to drive guide rod 9 protruding.The decrement of spring 3 and the atmospheric pressure of setting be to corresponding, in case after reaching the pressure of setting, the outer end of guide rod 9 just contacts with contact switch, the time switch disconnect, thereby make air pump stop inflation.
Aforementioned contact switch is the commercially available prod, its general structure as shown in Figure 4, (a) among Fig. 4 is the normally open of contact switch 7, (b) is the off state of contact switch, do not given unnecessary details the structure of contact switch once more.
As shown in Figure 5, another embodiment of the present utility model, the end (threaded in other words end, outer end as shown in Figure 3) of connecting head 1 is connected with the cylinder head 61 of air pump, so that the inner chamber of barometric control unit communicates with the air outlet of air pump, air pump be by pneumatic head 62 be inflated object for example tire be connected.Contact switch 7 is arranged on the corresponding position of shell 8 of air pump, after connecting power switch, the main frame 6 of air pump begins inflation, air communication is crossed the inner chamber that connecting head 1 enters into barometric control unit, make the Piston Compression spring of band guide rod, along be inflated object for example the air pressure in the tire also be after the air pressure of the air outlet of air pump arrives predetermined pressure, as shown in Figure 6, the guide rod contact switch 7 of will conflicting, the power supply of air pump is disconnected, disconnect with tire at the pneumatic head 62 with air pump then, the atmospheric pressure value in the air regulating device is zero, and guide rod is because of the elastic force automatic homing of spring.So just finished whole gas replenishment process.
Though the utility model is described with reference to current specific embodiment, but those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, should understand and wherein can make variations and modifications and do not break away from the utility model in a broad sense, so be not that conduct is to qualification of the present utility model, therefore, as long as in connotation scope of the present utility model, all will drop in the scope of the utility model claims the above embodiment's variation, modification.
Claims (10)
1. controlling device that reaches the air pump air pressure that predetermined pressure promptly disconnects is characterized in that comprising:
Cylindrical shell;
Be arranged on the piston in the cylindrical shell movably, the contacting point of piston and cylindrical shell is sealing when work at least, and piston has the home position when off working state in cylindrical shell;
The guide rod that is connected with piston;
Be arranged on the guide pin bushing in the cylindrical shell, the outer end of the extended cylindrical shell of guide rod is passed guide pin bushing movably;
Limit structure is arranged in the cylindrical shell, is used to stop that piston moves and piston is spacing in described home position towards the gas access end of this controlling device;
Returnning spring is arranged in the cylindrical shell, and the elastic force that acts on the piston is provided, so that piston moves to described home position;
Connecting head, itself and cylindrical shell are tightly connected; And
As the link that the gas access end of this controlling device communicates with the air outlet of air pump, this link is connected with connecting head;
Wherein, connecting head, link and limit structure provide gas-entered passageway, so that gas enters the inner chamber that limits between piston and the connecting head and forms and act on atmospheric pressure on the piston from link, move along guide pin bushing thereby make piston drive guide rod.
2. the controlling device that reaches the air pump air pressure that predetermined pressure promptly disconnects as claimed in claim 1, it is characterized in that, connecting head, limit structure and link are one, and limit structure is arranged in the cylindrical shell as the inner of connecting head, and link exposes to outside the cylindrical shell as the outer end of connecting head.
3. the controlling device that reaches the air pump air pressure that predetermined pressure promptly disconnects as claimed in claim 1 it is characterized in that spring is nested with on guide rod, and its two ends is resisted against respectively on piston and the guide pin bushing.
4. the controlling device that reaches the air pump air pressure that predetermined pressure promptly disconnects as claimed in claim 2 is characterized in that described home position is that piston is resisted against the position on the limit structure under the elastic force effect that spring provides.
5. the controlling device that reaches the air pump air pressure that predetermined pressure promptly disconnects as claimed in claim 1, it is characterized in that, one end of the relative connecting head of piston is formed with the skirt that can expand outwardly, in case enter gas and increase that the inwall of skirt and cylindrical shell forms sealing behind the air pressure in the described inner chamber from described gas-entered passageway.
6. the controlling device that reaches the air pump air pressure that predetermined pressure promptly disconnects as claimed in claim 1 is characterized in that, the endoporus of described guide pin bushing and the profile of described guide rod are similar in shape.
7. the controlling device that reaches the air pump air pressure that predetermined pressure promptly disconnects as claimed in claim 2 is characterized in that, is formed with the glue groove of inserting glue on the excircle of the inner of connecting head, thereby makes connecting head and cylindrical shell bonding.
8. the controlling device that reaches the air pump air pressure that predetermined pressure promptly disconnects as claimed in claim 1 is characterized in that guide rod is connected with the form of piston by encapsulate.
9. the controlling device that reaches the air pump air pressure that predetermined pressure promptly disconnects as claimed in claim 2 is characterized in that the outer end of connecting head is to have externally threaded link.
10. an air pump comprises air pump shell, air pump main frame, cylinder and pneumatic head, it is characterized in that also comprising:
Contact switch is arranged in the air pump shell; And
Reach the controlling device of the air pump air pressure that predetermined pressure promptly disconnects, this controlling device is arranged in the air pump shell, and it comprises:
Cylindrical shell;
Be arranged on the piston in the cylindrical shell movably, the contacting point of piston and cylindrical shell is sealing when work at least, and piston has the home position when off working state in cylindrical shell;
The guide rod that is connected with piston;
Be arranged on the guide pin bushing in the cylindrical shell, the extended cylindrical shell in the outer end of guide rod also can move up to touching contact switch along guide pin bushing, and after touching contact switch, the power supply of air pump main frame is disconnected;
Limit structure is arranged in the cylindrical shell, is used to stop that piston moves and piston is spacing in described home position towards the gas access end of controlling device;
Returnning spring is arranged in the cylindrical shell, and the elastic force that acts on the piston is provided, so that piston moves to described home position;
Connecting head, itself and cylindrical shell are tightly connected; And
As the link that the gas access end of this controlling device communicates with the position of giving vent to anger of cylinder, this link is connected with connecting head;
Wherein, connecting head, link and limit structure provide gas-entered passageway, make the air pressure of this inner chamber identical so that gas enters the inner chamber that limits between piston and the connecting head from link, move up to guide rod shake-up contact switch along guide pin bushing thereby make piston drive guide rod with the air pressure of pneumatic head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820152953XU CN201277167Y (en) | 2008-09-11 | 2008-09-11 | Air pump pressure regulating mechanism with disconnection function at pre-determined pressure, and air pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820152953XU CN201277167Y (en) | 2008-09-11 | 2008-09-11 | Air pump pressure regulating mechanism with disconnection function at pre-determined pressure, and air pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201277167Y true CN201277167Y (en) | 2009-07-22 |
Family
ID=40894753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820152953XU Expired - Lifetime CN201277167Y (en) | 2008-09-11 | 2008-09-11 | Air pump pressure regulating mechanism with disconnection function at pre-determined pressure, and air pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201277167Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051455A (en) * | 2016-05-18 | 2016-10-26 | 上海奥特玛特物流设备有限公司 | Inserting-head differential pressure type gun head and inserting-head differential pressure type inflation gun |
| CN110773098A (en) * | 2019-12-07 | 2020-02-11 | 生态环境部南京环境科学研究所 | Phosphatide fatty acid preparation is with automatic gas injection reation kettle |
-
2008
- 2008-09-11 CN CNU200820152953XU patent/CN201277167Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051455A (en) * | 2016-05-18 | 2016-10-26 | 上海奥特玛特物流设备有限公司 | Inserting-head differential pressure type gun head and inserting-head differential pressure type inflation gun |
| CN110773098A (en) * | 2019-12-07 | 2020-02-11 | 生态环境部南京环境科学研究所 | Phosphatide fatty acid preparation is with automatic gas injection reation kettle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090722 |
|
| CX01 | Expiry of patent term |