CN108928159A

CN108928159A - Pen case and method of use thereof

Info

Publication number: CN108928159A
Application number: CN201810830939.9A
Authority: CN
Inventors: 陈志兰
Original assignee: Individual
Current assignee: Junyi Textile Technology Co ltd
Priority date: 2018-07-26
Filing date: 2018-07-26
Publication date: 2018-12-04
Anticipated expiration: 2038-07-26
Also published as: CN108928159B; CN111546807B; CN111546807A

Abstract

The invention provides a pen cap and a using method thereof, the pen cap comprises a pen body, a pen sleeve, a deblocking and leakage-proof mechanism and a sealing cover operating mechanism, wherein a metal pen point is fixedly installed at the top of the pen body, the basic structure of the metal pen point comprises a pen point middle seam, a pen point air hole and a pen tongue, a transfusion channel is formed in the pen body, one end of the transfusion channel is sleeved with an ink-absorbing ink bag, the ink-absorbing ink bag is located in the pen body, and the deblocking and leakage-proof mechanism is arranged on the pen sleeve. This pen cap and application method can cover the intercommunicating pore and avoid influencing pleasing to the eye through setting up the fretwork knob on the one hand, and on the other hand can make things convenient for the lid of closing up to be connected and the separation with pen sheathed tube through the rotatory lid of fretwork knob to effectual pen nib of having solved and the easy drying of infusion passageway, present solution mode is used not very convenient, perhaps can not effectively moisten the problem of infusion passageway and nib.

Description

A kind of cap of a pen and its application method

Technical field

The present invention relates to schooling apparatus technical field, specially a kind of cap of a pen and its application method.

Background technique

Pen is that a kind of common schooling apparatus, student and teacher can usually have a comparison when using pen Common problem, be exactly after pen vacant a period of time pen tip be easy drying, pen is not discharged when writing, especially in carbon ink More common in water, carbon black ink is easily dry, writes interval very short time, and pen tip will be dried, and influences very much user's It uses.

There are two types of the common modes of problem for doing ink for pen tip at present, the first is directly to get rid of pen, and this mode is held Easily by ink get rid of everywhere, be also easy to be thrown on the clothing of people, not easy cleaning, and the effect got rid of and not necessarily very Good, due to the bad control of the dynamics of whipping, not being discharged will go into overdrive, it may appear that be formed inside narrow infusion channel disconnected Point is dry ink inside infusion channel, there are also carbon impurity etc., the ink that throws away cannot again moment moisturize and occur as soon as disconnected ink The case where, it is not just discharged again while writing, ink stream is obstructed, and the second way is directly to get wet, and this mode is only used for Dry pen tip head is soaked in the case that infusion channel is not dry, if infusion channel is also dried, this mode It cuts little ice, also someone is by squeezing ink sac certainly, and pen inner passage space is larger, it needs pen upside down, Smoothly ink could be squeezed out, ink extrusion is easy to make desktop dirty, it is also necessary to be wiped with paper handkerchief, process is complicated, and be easy to cause Inkiness, and it is be easy to cause waste, Pen nib and its infusion channel are easy drying, and current settling mode uses not It is too convenient, or infusion channel and pen tip cannot be effectively moisturized, so needing the cap of a pen and its application method.

Summary of the invention

(1) the technical issues of solving

In view of the deficiencies of the prior art, the present invention provides a kind of cap of a pen and its application method, Pen nib is solved And its infusion channel is easy drying, current settling mode uses inconvenient, or cannot effectively moisturize infusion channel And the problem of pen tip.

(2) technical solution

In order to achieve the above object, the present invention is achieved by the following technical programs: a kind of cap of a pen and its application method, Including pen ontology, pen casing, deblocking leakage preventing mechanism and closure application mechanism, it is fixedly installed at the top of the pen ontology Metal penpoint, the basic structure of metal penpoint include in pen tip seam, pen tip stomata and proposition, the inside of pen ontology offer defeated Liquid channel, one end of infusion channel are socketed with water suction ink sac, and water suction ink sac is located at the inside of pen ontology, and deblocking leakage preventing mechanism is set It sets on pen casing, the top of pen casing is arranged in closure application mechanism, and the inner wall of pen casing is provided with trapezoidal limit Ring, deblocking leakage preventing mechanism are located at the lower section of trapezoidal stop collar, and closure application mechanism is located at the top of trapezoidal stop collar.

Preferably, the surface of the pen ontology is connect with the inner thread of pen casing, and metal penpoint is located at the cap of a pen The inside of pipe, and the height of metal penpoint is lower than the height of trapezoidal stop collar.

Preferably, the metal penpoint is located at the top of deblocking leakage preventing mechanism, and metal penpoint is located at closure application mechanism Lower section, and unseal leakage preventing mechanism, trapezoidal stop collar and closure application mechanism and do not contacted with metal penpoint.

Preferably, the deblocking leakage preventing mechanism includes external sealing ring pipe, built-in first pressure bladder ring, annular connection The surface of slot and built-in second pressure bladder ring, external sealing ring pipe is fixedly connected with the surface of pen casing, external sealing The two sides up and down of ring pipe offer hole, and the inner wall in two holes is threaded with sealing bolt.

Preferably, the lower surface bonds on the surface of the built-in first pressure bladder ring and trapezoidal stop collar, built-in first Pressure bladder ring is located at the lower section of pen ontology, and annular link slot is provided on the inner wall of pen casing, annular link slot it is interior Wall is Nian Jie with the surface of built-in second pressure bladder ring, the surface of built-in second pressure bladder ring and built-in first pressure bladder ring Surface connection, the surface of the surface of built-in first pressure bladder ring and built-in second pressure bladder ring offers adsorption hole.

Preferably, the inner wall of the annular link slot is hinged with stripper plate, the surface of stripper plate and built-in second blanket gas The surface of capsule ring is slidably connected, and the surface of built-in second pressure bladder ring is socketed with communicating pipe, and one end of communicating pipe is run through and prolonged Extend to the inside of external sealing ring pipe.

Preferably, the closure application mechanism includes closure body, and the surface of closure body and the inner thread of pen casing connect It connects, the surface of closure body is bonded with gasket, and the inside of closure body offers cavity, and closure body surface offers intercommunicating pore, even One end of through-hole is connected to the inside of cavity, and the surface of closure body is fixedly connected with hollow out knob, the surface setting of hollow out knob There are several apertures, intercommunicating pore is located at the lower section of hollow out knob.

Preferably, the inner wall of the cavity slidably connects sealing-plug, and the surface of sealing-plug is fixedly connected with operating stick, behaviour The surface of closure body is run through and extended in the one end for making bar, and the lower surface of sealing-plug is fixedly connected with the first spring, the first spring One end far from sealing-plug is fixedly connected with the inner wall of cavity, and the lower surface of closure body offers pump orifice, one end of pump orifice It is connected to cavity.

Preferably, the surface of the sealing-plug offers trapezoidal seal, and the inner wall of trapezoidal seal is bonded with sealing shroud, The surface of sealing shroud slidably connects ball sealer, and the surface of ball sealer is fixedly connected with second spring, and second spring is far from sealing One end of ball is fixedly connected with the inner roof wall of cavity.

(3) beneficial effect

(1) in the use of the present invention, the inside of the dry pen precession pen casing of pen tip is passed through closure application mechanism Ink inside the ink sac that absorbs water can slowly be come out from water suction ink sac Inner extrusion, can slowly moisturize infusion channel and gold Belong to pen tip, deblocking leakage preventing mechanism gradually can fall extra ink absorption when screwing out pen, avoid inkiness And leakage.

(2) present invention is by setting deblocking leakage preventing mechanism, when pen ontology precession pen inside pipe casing can squeeze stripper plate, Built-in second pressure bladder ring and built-in first pressure bladder ring, when screwing pen ontology, pen ontology can be by built-in The emptying of one pressure bladder ring inner air, plays the role of sealing, when screwing out pen ontology, built-in first pressure bladder Ring and built-in second pressure bladder ring meeting spread apart play, and built-in first pressure bladder ring and built-in second pressure bladder ring can produce Raw suction is aspirated the upper surface that extra ink againsts pen ontology completely by adsorption hole, avoids ink leakage and ink Water pollution.

(3) for the present invention by setting stripper plate, stripper plate can squeeze out more gases, and second is close built in increase below Seal the adsorption capacity of air pocket rings.

(4) present invention is by being arranged external sealing ring pipe, and on the one hand external sealing ring pipe can play collection absorption Ink into inside built-in first pressure bladder and built-in second pressure bladder ring, so that built-in first pressure bladder and built-in It can keep vacant inside second pressure bladder ring, will not influence use next time, on the other hand external sealing ring pipe is set It sets in the outside of pen casing, easy cleaning.

(5) present invention is by setting closure application mechanism, when needing to moisturize infusion channel, pressing operation bar, and operating stick Sealing-plug is squeezed, the gas of pen inside pipe casing will push ball sealer, and gas is discharged by trapezoidal seal, then passes through connection Pen casing is discharged in hole, and then second spring will push ball sealer, and ball sealer contacts the sealing shroud inside trapezoidal seal and will Trapezoidal seal seals up, and unclamps operating stick, and the first spring will push sealing-plug and slowly rise, and sealing-plug rising can take out gas Enter cavity inside, pen inside pipe casing generates negative pressure, and water suction ink sac can slowly be shunk under the influence of air pressure, inside the ink sac that absorbs water Ink can slowly ascend into inside infusion channel, ink starts wet infusion channel, this process can be by controlling manually The lifting of system control ink, to have the function that control ink flow rate, upward, the downward gravity of ink preferably cooperates pen tip The slowly effect of wet infusion channel avoids that ink is caused to be easy the feelings fallen under the action of gravity and extruding downward because of pen tip Condition occurs, after the completion of extraction moisturizes work, pressing operations bar that can again slowly, and the pressure absent-mindedness of pen inside pipe casing, The ink of extrusion can also be drawn into again inside water suction ink sac along proposition c with diastole, be avoided the wave of ink by the ink sac that absorbs water Take.

(6) present invention is by being arranged trapezoidal stop collar, and on the one hand trapezoidal stop collar can play limit and squeeze built-in the On the other hand the effect of one pressure bladder ring can play the role of water conservancy diversion, ink can be directed to the top of pen ontology Portion facilitates pen ontology by ink recovery.

(7) present invention is connect by the way that closure body is arranged with the inner thread of pen casing, can be convenient closure application machine Structure is disassembled from pen casing, and rear seal-cover operating mechanism on the one hand can be damaged to avoid cap of a pen pipe can not dismantle and cause Waste, on the other hand also whole device easy to clean.

(8) in the use of the present invention, pen cap can be inverted, operating stick is drawn to the position far from pump orifice, it will be appropriate Ink be input to the inside of pen casing, then by the inside of pen casing precession pen ontology, then entire pen turned around, Upward, ink can flow downward leaves cavity to pen cap, extrusion operation bar, and the gas of cavity inside is discharged by trapezoidal seal, Pull joystick then up, absorb water ink sac inside gas can be fully drawn out, then ink can be submerged at metal penpoint, The suction of extrusion operation bar, the ink sac that absorbs water can suck ink inside water suction ink sac, and unsealing leakage preventing mechanism in whole process can To play the role of sealing and avoid ink contamination to pen body surface, achieve the effect that absorb water with pen cap, and avoid Conventional absorbent mode be easy to cause pen-holder contamination ink to need the case where wiping, and also avoids the waste of ink.

(9) on the one hand the present invention can cover in intercommunicating pore and avoid influencing beauty, on the other hand by setting hollow out knob Can by hollow out knob rotary seal lid, facilitate closure body and the connection of pen casing with separate, thus effective solution Pen nib and its infusion channel are easy drying, and current settling mode uses inconvenient, or cannot effectively moisturize The problem of infusion channel and pen tip.

Detailed description of the invention

Fig. 1 is schematic structural view of the invention；

Fig. 2 is present invention deblocking leakage preventing mechanism cross-sectional view；

Fig. 3 is closure application mechanism of the present invention cross-sectional view；

Fig. 4 is schematic enlarged-scale view at A in Fig. 3 of the present invention.

Wherein, 1 pen ontology, 101 metal penpoints, seam, b pen tip stomata, c proposition, 102 infusion channels, 103 in a pen tip Absorb water ink sac, 2 pen casings, 201 trapezoidal stop collars, 3 deblocking leakage preventing mechanisms, 301 external sealing ring pipes, first built in 302 Pressure bladder ring, 303 annular link slots, the second pressure bladder ring, 305 sealing bolts, 306 adsorption holes, 307 squeeze built in 304 Plate, 308 communicating pipes, 4 closure application mechanisms, 401 closure bodies, 402 gaskets, 403 cavitys, 404 intercommunicating pores, 405 hollow out knobs, 406 sealing-plugs, 407 operating sticks, 408 first springs, 409 pump orifices, 4010 trapezoidal seals, 4011 sealing shrouds, 4012 sealings Ball, 4013 second springs.

Specific embodiment

Below in conjunction with attached drawing of the invention, technical scheme in the embodiment of the invention is clearly and completely described, Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all Belong to the scope of protection of the invention.

Embodiment one, as shown in Figs 1-4, the embodiment of the present invention provides a kind of cap of a pen and its application method, including pen Ontology 1, pen casing 2, deblocking leakage preventing mechanism 3 and closure application mechanism 4, the top of pen ontology 1 are fixedly installed with metal pen Point 101, the basic structure of metal penpoint 101 include stitching a, pen tip stomata b and proposition c, the inside of pen ontology 1 in pen tip to open up There is infusion channel 102, one end of infusion channel 102 is socketed with water suction ink sac 103, and water suction ink sac 103 is located at the interior of pen ontology 1 The surface in portion, pen ontology 1 is connect with the inner thread of pen casing 2, and metal penpoint 101 is located at the inside of pen casing 2, and The height of metal penpoint 101 is lower than the height of trapezoidal stop collar 201, and deblocking leakage preventing mechanism 3 is arranged on pen casing 2, capping The top of pen casing 2 is arranged in operating mechanism 4, and the inner wall of pen casing 2 is provided with trapezoidal stop collar 201, unseals leakproof machine Structure 3 is located at the lower section of trapezoidal stop collar 201, and closure application mechanism 4 is located at the top of trapezoidal stop collar 201, and metal penpoint 101 In the top of deblocking leakage preventing mechanism 3, metal penpoint 101 is located at the lower section of closure application mechanism 4, and deblocking leakage preventing mechanism 3, trapezoidal Stop collar 201 and closure application mechanism 4 do not contact with metal penpoint 101, and deblocking leakage preventing mechanism 3 includes external sealing ring pipe 301, built-in first pressure bladder ring 302, annular link slot 303 and built-in second pressure bladder ring 304, external sealing ring pipe 301 surface is fixedly connected with the surface of pen casing 2, and the two sides up and down of external sealing ring pipe 301 offer hole, and two The inner wall in a hole is threaded with sealing bolt 305, the surface of built-in first pressure bladder ring 302 and trapezoidal stop collar 201 Lower surface bonds, built-in first pressure bladder ring 302 is located at the lower section of pen ontology 1, and annular link slot 303 is provided with pen On the inner wall of casing 2, the inner wall of annular link slot 303 is Nian Jie with the surface of built-in second pressure bladder ring 304, and built-in second is close The surface of envelope air pocket rings 304 is connected to the surface of built-in first pressure bladder ring 302, the table of built-in first pressure bladder ring 302 Face and the surface of built-in second pressure bladder ring 304 offer adsorption hole 306, and the inner wall of annular link slot 303 is hinged with crowded Pressing plate 307, the surface of stripper plate 307 and the surface of built-in second pressure bladder ring 304 are slidably connected, built-in second pressure bladder The surface of ring 304 is socketed with communicating pipe 308, and one end of communicating pipe 308 is run through and extends to the interior of external sealing ring pipe 301 Portion, closure application mechanism 4 include closure body 401, and the surface of closure body 401 is connect with the inner thread of pen casing 2, closure body 401 surface is bonded with gasket 402, and the inside of closure body 401 offers cavity 403, and 401 surface of closure body offers connection The one end in hole 404, intercommunicating pore 404 is connected to the inside of cavity 403, and the surface of closure body 401 is fixedly connected with hollow out knob 405, the surface of hollow out knob 405 is provided with several apertures, and intercommunicating pore 404 is located at the lower section of hollow out knob 405, cavity 403 Inner wall slidably connect sealing-plug 406, the surface of sealing-plug 406 is fixedly connected with operating stick 407, one end of operating stick 407 Run through and extend to the surface of closure body 401, the lower surface of sealing-plug 406 is fixedly connected with the first spring 408, the first spring 408 one end far from sealing-plug 406 is fixedly connected with the inner wall of cavity 403, and the lower surface of closure body 401 offers pump orifice 409, one end of pump orifice 409 is connected to cavity 403, and the surface of sealing-plug 406 offers trapezoidal seal 4010, trapezoidal sealing The inner wall of mouth 4010 is bonded with sealing shroud 4011, and the surface of sealing shroud 4011 slidably connects ball sealer 4012, ball sealer 4012 Surface be fixedly connected with second spring 4013, the interior top of the one end of second spring 4013 far from ball sealer 4012 and cavity 403 Wall is fixedly connected.

In use, by the inside of the dry pen precession pen casing 2 of pen tip, inside 1 precession pen casing 2 of pen ontology When can squeeze stripper plate 307, built-in second pressure bladder ring 304 and built-in first pressure bladder ring 302, screw pen ontology 1 , pen ontology 1 can empty built-in first pressure bladder ring, 302 inner air, play the role of sealing, pressing operation bar 407, operating stick 407 squeezes sealing-plug 406, and the gas inside pen casing 2 will push ball sealer 4012, and gas passes through trapezoidal close 4010 discharge of sealing, is then discharged pen casing 2 by intercommunicating pore 404, and then second spring 4013 will push ball sealer 4012, Ball sealer 4012 contacts the sealing shroud 4011 inside trapezoidal seal 4010 and seals up trapezoidal seal 4010, unclamps operation Bar 407, the first spring 408 will push sealing-plug 406 and slowly rise, and sealing-plug 406, which rises, to be pumped into gas in cavity 403 Portion generates negative pressure inside pen casing 2, and water suction ink sac 103 can slowly be shunk under the influence of air pressure, inside the ink sac 103 that absorbs water Ink can slowly ascend into inside infusion channel 102, ink starts wet infusion channel 102, during this, Ke Yitong It the lifting for manually controlling control ink is crossed, to have the function that control ink flow rate, and needs pen tip upward, ink is downward Gravity preferably cooperates slowly wet infusion channel 102, after the completion of extraction moisturizes work, pressing operations that can again slowly Bar 407, the pressure absent-mindedness inside pen casing 2, water suction ink sac 103 can also be with diastoles, can be by the ink of extrusion along proposition c weight It is newly drawn into inside water suction ink sac 103, when screwing out pen ontology 1, built-in first pressure bladder ring 302 and built-in second The meeting spread apart of pressure bladder ring 304 plays, and built-in first pressure bladder ring 302 and built-in second pressure bladder ring 304 can generate Clean, external sealing ring pipe is aspirated by adsorption hole 306 in the upper surface that extra ink againsts pen ontology 1 by suction 301 can play the ink collected and absorbed into inside built-in first pressure bladder 302 and built-in second pressure bladder ring 304, Complete the process of wet pen liquid-transport pipe-line 102.

Embodiment two, as shown in Figs 1-4, on the basis of example 1, pen cap can be inverted, operating stick 407 is drawn To the position far from pump orifice 409, suitable ink is extracted using with graduated suction pipe, then ink is input to pen casing 2 inside then by the inside of 2 precession pen ontology 1 of pen casing, then entire pen is turned around, and upward, ink can be to for pen cap Under flow out cavity 403, extrusion operation bar 407, the gas inside cavity 403 is discharged by trapezoidal seal 4010, then Operating stick 407 is pulled up, the gas inside the ink sac 103 that absorbs water can be fully drawn out, and then ink can be submerged in metal penpoint 101 Ink can be sucked inside water suction ink sac 103 in the suction of extrusion operation bar 407, the ink sac 103 that absorbs water, complete empty water pen by place The process of extracting liquid.

Claims

1. A pen case and method of use thereof, comprising a pen body (1), a pen sleeve (2), an unsealing leak-proof mechanism (3) and a capping operating mechanism (4), characterized in that: the pen body The top of (1) is fixedly installed with metal nib (101), and the basic structure of metal nib (101) comprises nib middle slit (a), nib air hole (b) and pen feed (c), and the inside of fountain pen body (1) is provided with The infusion channel (102), one end of the infusion channel (102) is sleeved with a water-absorbing ink bag (103), the water-absorbing ink bag (103) is located inside the pen body (1), and the unsealing and leak-proof mechanism (3) is arranged in the pen case On the pipe (2), the capping operating mechanism (4) is arranged on the top of the pen sleeve (2), and the inner wall of the pen sleeve (2) is provided with a trapezoidal stop ring (201), and the unsealing leak-proof mechanism (3) Located below the trapezoidal limiting ring (201), the cover operating mechanism (4) is located above the trapezoidal limiting ring (201).

2. A pen case and using method thereof according to claim 1, characterized in that: the surface of the pen body (1) is threadedly connected to the inner wall of the pen sleeve (2), and the metal nib (101) is located on the pen The inside of the casing (2), and the height of the metal nib (101) is lower than the height of the trapezoidal limiting ring (201).

3. A pen case and its use method according to claim 2, characterized in that: the metal pen tip (101) is located above the unsealing and leak-proof mechanism (3), and the metal pen tip (101) is located at the top of the capping operation The bottom of the mechanism (4), and the unsealing anti-leakage mechanism (3), the trapezoidal limit ring (201) and the capping operation mechanism (4) are not in contact with the metal nib (101).

4. A pen case and its use method according to claim 1, characterized in that: the unsealing and leak-proof mechanism (3) includes an external sealing annular tube (301), a built-in first sealing airbag ring (302) ), the annular connecting groove (303) and the built-in second sealing air bag ring (304), the surface of the external sealing annular tube (301) is fixedly connected with the surface of the pen sleeve (2), and the surface of the external sealing annular tube (301) Both the upper and lower sides are provided with holes, and the inner walls of the two holes are screwed with sealing bolts (305).

5. A pen case and using method thereof according to claim 4, characterized in that: the surface of the built-in first sealing airbag ring (302) is bonded to the lower surface of the trapezoidal stop ring (201), and the built-in The first sealing air bag ring (302) is positioned at the bottom of the pen body (1), and the annular connecting groove (303) is opened on the inner wall of the pen sleeve (2), and the inner wall of the annular connecting groove (303) is connected with the built-in second sealing air bag ring. The surface of (304) is bonded, the surface of the built-in second sealing airbag ring (304) communicates with the surface of the built-in first sealing airbag ring (302), the surface of the built-in first sealing airbag ring (302) and the built-in second sealing airbag Adsorption holes (306) are opened on the surface of the ring (304).

6. A pen case and its use method according to claim 5, characterized in that: the inner wall of the annular connection groove (303) is hinged with an extruding plate (307), and the surface of the extruding plate (307) is in contact with the The surface of the built-in second sealing airbag ring (304) is slidingly connected, and the surface of the built-in second sealing airbag ring (304) is sleeved with a connecting pipe (308), and one end of the connecting pipe (308) runs through and extends to the external sealing ring pipe (301) inside.

7. A pen case and its use method according to claim 1, characterized in that: the capping operating mechanism (4) comprises a capping body (401), the surface of the capping body (401) and the pen case The inner wall of the pipe (2) is threaded, the surface of the cover body (401) is bonded with a gasket (402), the inside of the cover body (401) is provided with a cavity (403), and the surface of the cover body (401) is provided with a cavity (403). There is a communication hole (404), one end of the communication hole (404) communicates with the inside of the cavity (403), the surface of the cover body (401) is fixedly connected with a hollow knob (405), and the surface of the hollow knob (405) is provided with Several small holes, the communication hole (404) is located below the hollow knob (405).

8. A pen case and its use method according to claim 7, characterized in that: the inner wall of the cavity (403) is slidably connected with a sealing plug (406), and the surface of the sealing plug (406) is fixedly connected with a Operating rod (407), one end of the operating rod (407) penetrates and extends to the surface of the cover body (401), the lower surface of the sealing plug (406) is fixedly connected with the first spring (408), the first spring (408) One end away from the sealing plug (406) is fixedly connected to the inner wall of the cavity (403), the lower surface of the cover body (401) is provided with a suction port (409), and one end of the suction port (409) is connected to the cavity (403) ) connected.

9. A pen case and its use method according to claim 8, characterized in that: the surface of the sealing plug (406) is provided with a trapezoidal sealing port (4010), and the inner wall of the trapezoidal sealing port (4010) is bonded There is a sealing sleeve (4011), the surface of the sealing sleeve (4011) is slidingly connected with a sealing ball (4012), the surface of the sealing ball (4012) is fixedly connected with a second spring (4013), and the second spring (4013) is away from the sealing ball ( 4012) is fixedly connected to the inner top wall of the cavity (403).