TWI384146B - The airtight structure of the toilet - Google Patents

Description

Airtight structure of pump inflation nozzle

The invention relates to an airtight structure of a pump inflation nozzle, in particular to a gastight structure for a rotary pump inflation nozzle.

Please refer to the "inflatable nozzle" structure shown in the attached Japanese Patent No. I307388, which is a pump inflation nozzle structure developed by the inventor, wherein the conventional invention patent is characterized by machining or integration. The forming technique provides a nozzle plug seat, and one end of the nozzle plug seat is provided with an enlarged diameter head seat having a chamber for accommodating the nozzle plug and the top core tube, wherein the head seat is The sidewall is interposed between the nozzle plug and the inner diameter of the casing to prevent the rubber nozzle and the metal casing from contacting each other to affect the rotation function of the casing. Another technical feature of the prior invention patent is to provide a plurality of air outlets. The top core tube, the gas nozzle plug and the top core tube are disposed in the chamber of the gas nozzle plug seat, so that the small air outlet holes communicate with the gas transmission holes of the nozzle plug group seat, and the top core tube combination When the through hole of the gas nozzle is inserted, it is further positioned by the flange provided on the top tube and the concave edge provided at the end of the through hole to avoid the detachment of the top tube from the nozzle plug, and the core tube After being combined with the nozzle plug, the nozzle plug is combined again After the nozzle plug is seated in the chamber, and the nozzle plug assembly is combined with the inner space of the outer casing, the end of the inner space is closed by a cap to prevent the nozzle plug seat from being detached from the outer casing.

Another feature of the design of the patented inflatable nozzle is that it can be used to inflate the nozzles of different specifications by changing the top tube and the nozzle of different specifications, but it is structurally missing. Therefore, the airtightness is not good; in particular, after the conventional inflation nozzle housing and the cap are assembled and screwed, the gap formed by the screw joint is formed on the inner wall of the inner space of the outer casing and the opening of the cap is inserted into the air guiding tube. The gap formed, so that when the inflation nozzle is engaged with the air nozzle of the tire, the air will be vented from the gap in the space inside the casing, and the air can not be completely driven into the tire because the air pressure is released from the structural gap of the inflation nozzle. And affect the inflation effect, because Therefore, it is necessary to review and improve the structure of the aforementioned conventional patent, and design a more airtight gas nozzle.

In order to solve the conventional aeration nozzle, since the outer casing and the cap are screwed together, the inner wall of the inner surface of the inner surface of the outer casing and the opening of the cap are penetrated through the structural gap formed by the air pipe to leak air pressure. In the present invention, the above-mentioned screw joint is transferred from the "outer casing inner diameter" to the "outer casing outer diameter", so that the inner diameter of the outer casing is maintained from the bottom end to the open end to maintain a complete inner circular surface. When the outer casing and the cap are assembled and screwed together, the inner circular surface of the inner ring diameter of the outer casing can be made to have no screwing gap, so as to achieve no deflation.

The airtight structure of the inflator of the present invention is mainly a reinvention developed for the rotary inflator of the prior art patent of the prior art, wherein the inflator of the pump also has a nozzle plug seat, The utility model is characterized in that a casing, a cap and a nozzle plug and a core tube are formed. The main feature of the present invention is that a groove is arranged behind the head seat of the outer ring of the nozzle plug seat, and an airtight ring is arranged in the sleeve. The airtight ring is designed to protrude slightly beyond the sleeve, so that the inside of the nozzle plug seat can be self-contained by the airtight ring when the gas nozzle plug is assembled with the outer casing and the cap. The inner circular surface of the inner diameter of the outer casing of the nozzle plug seat is better in airtightness, and the secondary feature of the present invention is that the inner diameter of the outer casing has an inner circular surface of a length, The length is longer than the total length of the head seat and the sleeve of the nozzle plug seat, thereby providing the airtight ring to abut against the inner circular surface of the outer diameter of the outer casing to achieve airtightness.

Referring to FIG. 1 , FIG. 2 and FIG. 3 , the structural design of the preferred embodiment of the present invention, the inflator 20 of the present invention, which is mounted on the head 41 of the inflator 40 , includes a casing 21 , a cap 22 , and a gas . The nozzle housing 10 and the like, wherein one end of the housing 21 is an inflatable end 211 having an aperture, the aperture of the inflation end 211 is provided with a first thread 212, and the outer diameter of the other end of the inflation end 211 is provided with a second Thread 213, the inner portion of the outer casing 21 is formed with an inner circular surface 214 having an inner diameter larger than the inner diameter of the inflation end 211. The cap 22 has a relatively side on one side A cover having a large inner diameter and a third thread 221 is disposed at the inner diameter, and the other end of the cap 22 is provided with a through opening 222. One end of the nozzle plug base 10 has a head seat 13. One end of the head base 13 forms a chamber, and the opposite end of the head base 13 is an air duct 12 having a small diameter, and a position is provided at the position of the air duct 12 The gear portion 11 defines a groove 101 between the gear portion 11 and the headstock 13, and the bottom diameter of the sleeve groove 101 is smaller than the inner diameter of the headstock 13; the axial length of the gear portion 11 is smaller than the headstock 13 The axial length is greater than the inner diameter of the opening 222; an airtight ring 30 is sleeved in the sleeve 101, the thickness of the airtight ring 30 is greater than the depth of the sleeve 101, so that the airtight ring 30 sets After the sleeve 101 is inserted into the groove 101, the sleeve 101 is appropriately protruded; after the air guide tube 12 passes through the opening 222 from the third thread 221 end of the cap 22, the cap 22 can be blocked by the shutter portion 11, and the second thread 213 of the outer casing 21 can be used. The third thread 221 of the cap 22 is screwed and fixed, so that the outer casing 21 and the cap 22 enclose the headstock 13, the sleeve 101 and the gear portion 11, so that the headstock 13, the sleeve 101 and the gear portion 11 can be in the outer casing. The inner diameter of 21 is free to rotate, and the soft airtight ring 30 is brought into airtight against the inner circular surface 214 of the outer casing 21 to prevent gas from leaking out of the gap of the opening 222 of the cap 22. The air pressure can also prevent the outer surface of the headstock 13 from coming into contact with the inner circular surface 214 of the outer casing 21, and has the effects of isolation, good stability, no shaking, no looseness, and no sound. The structure disclosed in FIG. 3 is assembled to show its derivable application, in particular, the chamber formed inside the headstock 13 can be matched with the need for inflation to match three different nozzles and their core tubes, wherein state one The first thread 212A can be matched with the French air nozzle 31 and a French air nozzle, or the second thread can be matched with the American air nozzle 32 and a first thread 212B for the US air nozzle, wherein the American air nozzle 32 and the foregoing The original invention has the same top center tube 321 and the design of the vent hole 322 and the abutting end 323 in the top core tube 321 . The third state can be matched with the British air nozzle plug 33 and a British air nozzle dedicated first thread 212C, wherein The British nozzle plug 33 has a core tube 331 and a design of the vent tube 332 in the core tube 331. Therefore, the present invention can be used in the case of not changing the cap 22 and the nozzle plug base 10. After the various forms of the outer casing and the nozzle plug are interchanged, the nozzles of different tires can be screwed for inflation.

In addition, please refer to the state diagram of the three types of nozzles shown in FIG. 4, the sleeve 101 is provided with a gas-tight ring 30, and the thickness of the gas-tight ring 30 is slightly larger than the depth of the sleeve 101, The depth is calculated from the outer diameter of the sleeve 101 to the headstock 13, so that when the outer casing 21 is sleeved on the outside of the headstock 13, the inner circular surface 214 of the outer casing 21 can be abutted against the outer annular surface of the airtight ring 30. Compressed airtight, because the airtight ring 30 is made of a highly wear-resistant airtight material, and the overall rotary inflation nozzle is screwed to the above-mentioned various types of tire nozzles, the rotation stroke is not large, and the appropriate lubrication design is added. Therefore, the airtight ring 30 can form another airtight fit with the inner circular surface 214 for a long time in the sleeve 101, and the airtight structure design of the original patented inflation nozzle will form a better barrier effect and make it stronger. The air pressure is also not easily released from the position of the sleeve 101 and the inner circular surface 214.

The three types of tire nozzles (French air nozzle A/American air nozzle B/British air nozzle C) shown in FIG. 4 are respectively engaged with the first three threads (212A/212B/212C) of the front cover. That is, the three kinds of nozzle plugs (31/32/33) are in contact with each other, but by the airtight ring 30 in the sleeve 101 and the inner circular surface 214, the gas can be prevented from leaking from the original position. The overall aeration effect is more perfect, and the airtight effect is better.

Referring to another embodiment shown in FIG. 5 , the embodiment is mainly designed for a special specification of the French air nozzle A ′, the French air nozzle A ′ only has a small diameter thread at the front end, and is matched with the French version. The feature of the air nozzle A' is such that, except that the structure of the rear stage of the embodiment is the same as that of the French air nozzle of FIG. 4, the aperture diameter of the first thread 212A' of the inflation end 211 of the outer casing 21 is the same as that of the French air nozzle A. The small-diameter thread of the front end is screwed, and a groove 215 is further formed at the front end opening of the first thread 212A' and a nozzle plug 31' is provided. The nozzle plug 31' is an O-ring, and the ring is formed. The nozzle plug 31' is in contact with the French air nozzle A when the first thread 212A' is threadedly engaged with the small diameter of the front end of the French air nozzle A'. The front end of the small-diameter threaded end of the front end forms a gas-tight shape, but the overall design of the inflator must still form another airtight fit through the airtight ring 30 in the sleeve 101 and the inner circular surface 214. The effect, if not, will be inflated because the other end will cause air Enter the tires.

As shown in FIG. 6 and FIG. 7 , in the structure of the present invention, the air guiding tube 12 is further provided with a screwing end 14 and is screwed to the air guiding opening 411 of the head 41 of the inflating cylinder 40 and is sleeved with a washer 141. In addition to the airtightness, a card portion 15 may be provided to be tightly engaged with the outlet end 501 of the hose 50 extending from the pump cylinder and a rigid collar 502 is sleeved to complete the assembly.

In summary, the present invention forms another airtight fit between the sleeve 101 and the inner circular surface 214 through the airtight ring 30, so that any type of air nozzle disclosed in the present invention can be engaged with the corresponding tire nozzle specifications. After that, the existence of the unstructured gap is reached, so that the air pressure can be completely filled into the tire to inflate when inflating, and the airtight structure of the inflator can be used for the pump which is manually inflated or filled by the high-pressure gas cylinder. The preferred embodiment of the present invention is only intended to explain the preferred embodiment of the present invention, and is not intended to limit the invention in any way, so that it is made in the spirit of the same invention. Any modifications or variations of the invention are intended to be included within the scope of the invention.

10‧‧‧Air nozzle block

101‧‧‧ sets of slots

11‧‧ ‧ Department

12‧‧‧ Airway tube

13‧‧‧ head seat

14‧‧‧ screw end

141‧‧‧Washers

15‧‧‧Card Department

20‧‧‧Inflatable mouth

21‧‧‧ Shell

211‧‧‧Inflatable end

212A‧‧‧first thread

212B‧‧‧first thread

212C‧‧‧first thread

213‧‧‧second thread

214‧‧‧ inner round

215‧‧‧ Groove

22‧‧‧ Cap

221‧‧‧ Third thread

222‧‧‧ openings

212A’‧‧‧First thread

30‧‧‧ airtight ring

31‧‧‧French nozzle

32‧‧‧American gas nozzle

321‧‧‧heart tube

322‧‧‧vents

323‧‧‧Right to the top

33‧‧‧English-style nozzle

331‧‧‧heart tube

332‧‧‧ snorkel

31’‧‧‧ gas mouth plug

40‧‧‧Inflator

41‧‧‧ head

411‧‧‧ air inlet

50‧‧‧Hose

501‧‧‧export end

502‧‧‧ collar

A‧‧‧ French nozzle

A’‧‧‧French nozzle

B‧‧‧American gas nozzle

C‧‧‧English nozzle

Figure 1 is a partial perspective view of the present invention.

Figure 2 is a partial exploded perspective view of the present invention.

Figure 3 is a cross-sectional exploded view of the structure of the present invention.

Figure 4 is a cross-sectional assembly view of the structure of the present invention.

Figure 5 is a cross-sectional assembly view showing another embodiment of the present invention.

Figure 6 is a partial assembled cross-sectional view of the present invention.

Figure 7 is a cross-sectional view of another partial assembly of the present invention.

10. . . Valve plug seat

101. . . Slot

11. . . File department

12. . . Air duct

13. . . Head seat

twenty one. . . shell

211. . . Inflatable end

212A. . . First thread

212B. . . First thread

212C. . . First thread

213. . . Second thread

214. . . Inner circle

twenty two. . . Cap

221. . . Third thread

222. . . Opening

30. . . Airtight ring

31. . . French nozzle

32. . . American air nozzle

321. . . Top tube

322. . . Vent

323. . . Reach the top

33. . . British gas nozzle

331. . . Top tube

332. . . Snorkel

Claims (7)

The airtight structure of the inflator of the pump comprises at least a casing, a nozzle plug seat, a nozzle plug and a cap for engaging the air nozzle of the tire, wherein the outer casing has one end An inflated end of the bore, the bore of the bore is provided with a first thread, and the outer sleeve is provided with a second thread with respect to an outer diameter of the other end of the bore, the interior of the shell forming an inner circular surface; the nozzle group One end of the seat has a head seat relative to the position of the outer casing, and one end of the head base forms a chamber, and the other end of the head seat is an air guiding pipe, and the air guiding pipe forms a gear portion, and the gear portion and the head seat are Forming a groove between the ends, the bottom diameter of the sleeve is smaller than the inner diameter of the head seat; the sleeve is provided with an airtight ring; the nozzle is sleeved in the chamber of the head seat, and the head The seat is assembled together with the inside of the casing to form an airtight joint with the air nozzle of the tire; the end of the cap has an opening at the center thereof for the air pipe to pass through, and the inner diameter of the cap relative to the other end of the air pipe Opening a third thread and the second inner screw Screwing; wherein the housing and the cap screwed to one another and encapsulating the header within the housing to abut against the circular surfaces of the airtight sleeve of the ring groove is formed airtight. The airtight structure of the inflator of the pump according to claim 1, wherein the nozzle is a hollow circular body and is sleeved in the chamber of the head. The airtight structure of the inflator of the pump according to the second aspect of the patent application, wherein the center of the nozzle plug is provided with a core tube. The airtight structure of the inflator of the pump according to the first aspect of the invention, wherein the inner circular mask of the outer casing has a length which is greater than the sum of the head seat and the sleeve of the nozzle assembly. The length is such that when the outer casing is sleeved with the nozzle plug seat, the length can be overlaid on the sleeve and assembled with the cap. The airtight structure of the inflator of the pump according to the first aspect of the invention, wherein the thickness of the airtight ring is greater than the depth of the sleeve. The airtight structure of the inflator of the pump of claim 1, wherein the outer casing has a groove on the annular hole of the first thread. The airtight structure of the inflator of the pump according to claim 6, wherein the recess of the outer casing is provided with a nozzle plug.