CN203443744U - Plug device convenient for plugging and unplugging - Google Patents
Plug device convenient for plugging and unplugging Download PDFInfo
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- CN203443744U CN203443744U CN201320492092.0U CN201320492092U CN203443744U CN 203443744 U CN203443744 U CN 203443744U CN 201320492092 U CN201320492092 U CN 201320492092U CN 203443744 U CN203443744 U CN 203443744U
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- plug
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- screw
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Abstract
The utility model discloses a plug device convenient for plugging and unplugging. The plug device comprises a shell and a plug core. One end of the plug core is connected with a first quick joint and a second quick joint. The other end of the plug core is provided with a projecting joint extending out of the shell. The projecting joint is composed of a main body segment and an adjusting segment. The outer end face of the main body segment is provided with a screw hole, and the adjusting segment is a screw connected in the screw hole. The edge of the side face, exposed out of the screw hole, of the adjusting segment is expanded and provided with a flange. The side face, between the flange and the shell, of the projecting joint is sleeved by an expansion rubber sleeve. A gap is arranged between the plug core and the shell. The first quick joint connects with the gap between the plug core and the bottom face of a cavity through a first gas channel arranged in the plug core. The second quick joint links up with the outer end face of the projecting joint through a second gas channel arranged in the plug core. The plug device is convenient to plug and unplug during the container airtightness detection, and the labor intensity of works is reduced.
Description
Technical field
The utility model relates to a kind of seal element, especially relates to a kind of end cap easily that plugs when detecting impermeability.
Background technology
At present, some in use have the container of requirement to impermeability, all need to detect in the packing shipment row impermeability of advancing.As, the fuel tank of automobile, if fuel tank impermeability is defective, will produce the problems such as oil transportation is bad, fuel tank leakage of oil.In testing process, just need to the position, oil pipe hole of fuel tank be inflated and be sealed with inflatable plug.At this moment just produced a problem: the bubble-tight method of existing detection fuel tank for to be dipped into fuel tank in water with jacking gear after manual inflation, by manual observation, have or not Bubble formation and the bubble detected fuel tank sealing of form judgement of emerging whether good, after having detected, also need plug to extract.Because be filled with gas in fuel tank, the connection of plug and fuel tank is all tightr, wastes time and energy, and easily cause the wearing and tearing of equipment connection place when workpeople plugs, and affects the impermeability of fuel tank.Chinese patent Granted publication number: CN202656809U, at on 01 09th, 2013 Granted publication day, a kind of valve end cap is disclosed, it comprises gas cylinder plug and tyre valve, external thread is arranged at the bottom at gas cylinder plug, on gas cylinder plug, have mounting hole, the lower end of tyre valve is fixedly mounted in mounting hole.This valve end cap reasonable and compact in structure, easy to use, by being used in conjunction with of gas cylinder plug and tyre valve, realize the object of interim air feed, have and draw materials and feature easy to make, improved waste and old utilization factor and work efficiency.But such device is a plug is fixedly connected with valve cock by mounting hole, use and detect in fuel tank impermeability, need plug to be fixedly connected with fuel tank, workpeople still needed constantly to untie or the fixing syndeton of plug and fuel tank in when operation, waste time and energy, and easily cause the wearing and tearing of equipment connection place.
Utility model content
The utility model is when overcoming existing detection fuel tank impermeability, and the plug of use need to be with fuel tank by being manually closely connected, and the deficiency wasting time and energy during plug, provides a kind of plug end cap easily.
To achieve these goals, the utility model is by the following technical solutions:
A kind of plug of the present utility model is end cap easily, comprise a housing, housing has the circular cylindrical cavity that a side is opened, the bottom surface of cavity is provided with coaxial through hole, in cavity, slidably connect a plug core, one end that plug core is positioned at cavity hatch direction is connected with the first rapid-acting coupling and second rapid-acting coupling that can be connected with compression gas pipe, and the plug core other end is provided with one with through hole adaptation and stretches out the protruding joint outside housing; The outer end edges expansion of described protruding joint has a flange, and the side cover of protruding joint between flange and housing has an expanded rubber cover; Between the end face of plug core in cavity and the bottom surface of cavity, be provided with gap, between plug core and cavity side, be provided with seal element, between protruding joint and through hole, be also provided with seal element; Described the first rapid-acting coupling is communicated with the gap between plug core and the bottom surface of cavity by being located at the first gas passage of plug in-core, and the second rapid-acting coupling connects the outer face of protruding joint by being located at the second gas passage of plug in-core.
When end cap is used, the head of expanded rubber cover is inserted to position, fuel tank hole, during plug unaerated, expanded rubber cover maintains the original state, and plug and position, fuel tank hole, in clearance fit state, can easily plug; During inflation, first by expansion draft tube, in gap, inflate, because gaseous tension promotes shift reverse between housing and plug core, after housing displacement, first withstand the hole wall of position, fuel tank hole, plug core continues stressed to backward shift, drives screw to backward shift, extrusion expansion rubber sleeve, expanded rubber cover is arched upward, and plug and position, fuel tank hole are in interference air-tight state.After impermeability detects, first gas in fuel tank is got rid of by the second gas passage, kept gas in gap first not get rid of.Gas reserves are many in fuel tank, after the whole fuel tank of end to be detected is dried up, then emit the gas length that expends time in, and work efficiency is not high; And in the dried up process of fuel tank, gas in delivery space, can cause expanded rubber cover to shrink and make fuel tank water inlet immediately.After whole fuel tank is dried up, get rid of gas in gap, the contraction of expanded rubber cover, replys smoothly, can easily extract plug.So, only need to control being filled with and getting rid of of gas, just can realize excellent sealing between plug and fuel tank and fixing, the while is plug plug easily.
As preferably, described protruding joint is by main paragraph and regulate section to form, main paragraph is a right cylinder, it is extended and is formed by plug core one, the outer face of main paragraph is provided with screw, regulate Duan Weiyi to be connected to the screw in screw, described flange is arranged on and regulates section to expose in the lateral edge outside screw.Projection joint consists of two parts, and is threaded connection, and is beneficial to the manufacturing, is beneficial to assembly.And can adjust screw according to the size of expanded rubber cover, the screw making and housing clamp expanded rubber cover, do not make it come off.
As preferably, it between described adjusting section and main paragraph, is tapered thread connection.The utility model will be exerted pressure and cause deformation expanded rubber cover smoothly, and whether screw position syndeton is closely very important.It is easily loosening that STRTHD structure is used screw of a specified duration, so preferred tapered thread.
As preferably, between described adjusting section and the screw of main paragraph bottom, leave a cavity, the second gas passage is at main paragraph and regulate the opening in section to form misconstruction.When the long section that screw overlaps according to expanded rubber regulates, formed cavity, and crooked gas passage is conducive to rush the instantaneous variation of compensator or trimmer pressure while exitting.
As preferably, described seal element is O type circle.
Therefore, the utlity model has following beneficial effect: (1) plug is convenient, reduces labour intensity; (2) plug can automatic-sealed fuel tank by inflation, little to position, the oil pipe hole wearing and tearing of fuel tank.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is another kind of structural representation of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
In embodiment as shown in Figure 1, a kind of plug is end cap easily, comprise a housing 5, housing 5 has the circular cylindrical cavity that a side is opened, the bottom surface of cavity is provided with coaxial through hole, in cavity, slidably connect a plug core 4, one end that plug core 4 is positioned at cavity hatch direction is connected with the first rapid-acting coupling 1 and the second rapid-acting coupling 2, the first rapid-acting coupling 1 connects expansion draft tube 9, the second rapid-acting coupling 2 connects fuel tank draft tube 10, and plug core 4 other ends are provided with one with through hole adaptation and stretch out the protruding joint outside housing.Projection joint is by main paragraph and regulate section to form, and main paragraph is a right cylinder, and it is extended and formed by plug core 4 one, and the outer face of main paragraph is provided with screw, regulates Duan Weiyi to be connected to the screw 7 in screw, regulates between section and main paragraph as tapered thread connects.In adjusting section, expose expansion in the lateral edge outside screw and have a flange 3.The side cover of projection joint between flange 3 and housing 5 has an expanded rubber cover 6.Between the end face of plug core 4 in cavity and the bottom surface of cavity, be provided with gap, between plug core 4 and cavity side, be provided with O type circle 8, between protruding joint and through hole, be also provided with O type circle 8.Described the first rapid-acting coupling 1 is communicated with the gap between plug core 4 and the bottom surface of cavity by the first gas passage being located in plug core 4, and the second rapid-acting coupling 2 connects the outer face of protruding joint by being located at the second gas passage in plug core 4.Regulate between the screw bottom of section and main paragraph and leave a cavity, the second gas passage is at main paragraph and regulate the opening in section to form misconstruction.
Plug experiences following several stage in testing process:
(1), the starting stage: fuel tank is not put into water, plug is filled in position, fuel tank hole, and expansion draft tube 9 and fuel tank draft tube 10 all do not start inflation, and expanded rubber cover 6 in a state of nature, now plug and fuel tank are in clearance fit state, and it is light that plug inserts fuel tank.
(2), enter the water stage: expansion draft tube 9 starts to air inlet in gap, and fuel tank draft tube 10 starts to inflate, and fuel tank enters water in fuel tank.Expanded rubber cover 6 is in the expansion of arching upward, and now plug and fuel tank are in interference air-tight state, as shown in Figure 2.
(3), detection-phase: fuel tank enters water completely, detects impermeability.Expanded rubber cover 6 is in the expansion of arching upward, and now plug and fuel tank are in interference air-tight state.
(4), the dried up stage: detect completely, fuel tank is dried up, and expansion draft tube 9 keeps to air inlet in gap, and in fuel tank, gas is got rid of by fuel tank draft tube 10.Expanded rubber cover 6 is in the expansion of arching upward, and now plug and fuel tank are in interference air-tight state.
(5), ending phase: fuel tank is completely dried up, and in gap, gas is got rid of by expansion draft tube 9, and in fuel tank, gas is got rid of by fuel tank draft tube 10.Expanded rubber cover 6 is replied virgin state, and now plug and fuel tank are in clearance fit state, and plug easily plugs.
Claims (5)
1. one kind plugs end cap easily, it is characterized in that, comprise a housing (5), housing (5) has the circular cylindrical cavity that a side is opened, the bottom surface of cavity is provided with coaxial through hole, in cavity, slidably connect a plug core (4), one end that plug core (4) is positioned at cavity hatch direction is connected with the first rapid-acting coupling (1) and second rapid-acting coupling (2) that can be connected with compression gas pipe, and plug core (4) other end is provided with one with through hole adaptation and stretches out the protruding joint outside housing; The outer end edges expansion of described protruding joint has a flange (3), and the side cover of protruding joint between flange (3) and housing (5) has an expanded rubber cover (6); Between the end face of plug core (4) in cavity and the bottom surface of cavity, be provided with gap, between plug core (4) and cavity side, be provided with seal element, between protruding joint and through hole, be also provided with seal element; Described the first rapid-acting coupling (1) is communicated with the gap between plug core (4) and the bottom surface of cavity by the first gas passage being located in plug core (4), and the second rapid-acting coupling (2) connects the outer face of protruding joint by being located at the second interior gas passage of plug core (4).
2. plug according to claim 1 end cap easily, it is characterized in that, described protruding joint is by main paragraph and regulate section to form, main paragraph is a right cylinder, it is extended and is formed by plug core (4) one, the outer face of main paragraph is provided with screw, regulates Duan Weiyi to be connected to the screw (7) in screw, and described flange (3) is arranged on and regulates section to expose in the lateral edge outside screw.
3. plug according to claim 2 end cap easily, is characterized in that, is tapered thread connection between described adjusting section and main paragraph.
4. plug according to claim 2 end cap easily, is characterized in that, between described adjusting section and the screw of main paragraph bottom, leaves a cavity, and the second gas passage is at main paragraph and regulate the opening in section to form misconstruction.
5. plug according to claim 1 end cap easily, is characterized in that, described seal element is O type circle (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320492092.0U CN203443744U (en) | 2013-08-13 | 2013-08-13 | Plug device convenient for plugging and unplugging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320492092.0U CN203443744U (en) | 2013-08-13 | 2013-08-13 | Plug device convenient for plugging and unplugging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203443744U true CN203443744U (en) | 2014-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320492092.0U Expired - Fee Related CN203443744U (en) | 2013-08-13 | 2013-08-13 | Plug device convenient for plugging and unplugging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203443744U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441717A (en) * | 2016-10-20 | 2017-02-22 | 苏州天沃科技股份有限公司 | Pressure test plug for heat exchange tube |
| CN107817079A (en) * | 2017-11-30 | 2018-03-20 | 贝兹维仪器(苏州)有限公司 | A kind of LWD tightness measuring devices suppressed automatically |
| CN108088627A (en) * | 2017-12-30 | 2018-05-29 | 台州市健特交通器材有限公司 | A kind of car light air-leakage test air inlet gun |
-
2013
- 2013-08-13 CN CN201320492092.0U patent/CN203443744U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441717A (en) * | 2016-10-20 | 2017-02-22 | 苏州天沃科技股份有限公司 | Pressure test plug for heat exchange tube |
| CN106441717B (en) * | 2016-10-20 | 2019-01-01 | 张化机（苏州）重装有限公司 | The pressure testing plug of heat exchanger tube |
| CN107817079A (en) * | 2017-11-30 | 2018-03-20 | 贝兹维仪器(苏州)有限公司 | A kind of LWD tightness measuring devices suppressed automatically |
| CN108088627A (en) * | 2017-12-30 | 2018-05-29 | 台州市健特交通器材有限公司 | A kind of car light air-leakage test air inlet gun |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140219 Termination date: 20200813 |