Explosion filling device for vacuum tire

Abstract

The utility model relates to the technical field of traffic transportation equipment, and discloses an explosion inflator for a vacuum tire, which comprises an inflation and deflation module connected with an opening of a gas tank, the inflation and deflation module comprises an outer disc, a fixing ring, an elastic sealing gasket, a reset spring and a chassis, the outer disc is provided with an inflation port and a deflation port, the inflation port is provided with a one-way air inlet valve, and the deflation port is provided with a one-way air outlet valve. The lower side of the outer disc is provided with a sealing pipe communicated with the deflation port, the outer disc is fixedly connected to an opening of the gas tank, the bottom face of the outer disc is provided with a supporting column, the fixing ring, the elastic sealing gasket and the base plate are sequentially fastened to the supporting column, a closed cavity is formed between the elastic sealing gasket and the base plate, and the elastic sealing gasket is provided with a balance hole communicated with the cavity. The reset spring is located between the chassis and the elastic sealing gasket, an air release hole is formed in the chassis, the air tank wall is connected with an air release valve, and an air release pipe is communicated between the air release hole and the air release valve. The explosion-filling device realizes rapid gas filling of the gas tank and rapid explosion-filling of the vacuum tire, and is reasonable in structure, convenient to operate, small in size and high in practicability.

Description

Technical Field

[0001] This utility model relates to the field of transportation equipment technology, and in particular to an inflator for tubeless tires. Background Technology

[0002] Tubeless tires, also known as tubeless tires, have become increasingly popular in recent years for bicycles, motorcycles, cars, buses, and trucks. Tubeless tires offer high elasticity and wear resistance, along with good adhesion and heat dissipation. A seal is required at the contact point between the tire and the tube; normally, a tubeless tire is airtight. However, if punctured by a foreign object, it will leak air, requiring repair and inflation.

[0003] After a tubeless tire is repaired, it's initially difficult to inflate it with a regular air pump. Therefore, mechanics use an air pump to apply a momentary pressure to the tire to ensure proper contact between the rim and the tubeless tire for inflation. However, in the field, after a tire replacement or repair, gaps exist between the rim and the tubeless tire, making it impossible to inflate properly with a regular air pump. This causes considerable inconvenience for those traveling in remote areas. Utility Model Content

[0004] This utility model provides a burst inflator for tubeless tires. The burst inflator can quickly inflate air canisters and achieve rapid burst inflation of tubeless tires. It has a reasonable structure, is easy to use, portable, economical and practical.

[0005] The above-mentioned objective of the utility model is achieved through the following technical solution:

[0006] An inflator for tubeless tires includes an air tank. The opening of the air tank is connected to a deflation / inflation module for inflating or deflating the tank. The deflation / inflation module includes an outer disc, a retaining ring, an elastic sealing gasket, a return spring, and a base. The outer disc has an inflation port and a deflation port. A one-way air inlet valve is provided on the inflation port. A sealing pipe communicating with the deflation port is provided on the lower side of the outer disc. The outer disc is fixed to the opening of the air tank. Multiple support columns are provided circumferentially on the bottom surface of the outer disc. The retaining ring, elastic sealing gasket, and base are sequentially arranged below the outer disc. The outer disc is fixed to the opening of the gas tank by screws fastening it to the support column. The upper surface of the chassis has a downwardly recessed part, and a sealed chamber is formed between the elastic sealing gasket and the recessed part. The elastic sealing gasket has a balance hole that connects to the chamber. The return spring is located between the recessed part and the elastic sealing gasket. The return spring is used to push the elastic sealing gasket against the opening of the sealing tube for sealing. The recessed part has a vent hole, and a vent valve is connected to the outer wall of the gas tank. A vent pipe connects the vent hole and the vent valve.

[0007] In the aforementioned blowout inflator for tubeless tires, the vent hole is located in the center of the recess, and the upper surface of the recess is provided with a limiting groove coaxial with the vent hole. The limiting groove is a downwardly recessed annular shape and is adapted to the lower end of the return spring.

[0008] In the aforementioned blowout inflator for tubeless tires, the lower surface of the elastic sealing gasket is fixedly connected to a support plate adapted to the opening of the sealing tube, the bottom surface of the support plate is provided with a limiting post perpendicular to it, and the upper end of the return spring is embedded on the outside of the limiting post.

[0009] In the aforementioned inflator for tubeless tires, the support plate is circular, the limiting post is located in the center of the support plate, a through hole is provided in the center of the support plate and the limiting post, a gasket is provided on the upper surface of the elastic sealing gasket, and a screw passes through the gasket, the elastic sealing gasket and the through hole of the support plate and is screwed to a nut.

[0010] In the aforementioned blowout inflator for tubeless tires, the vent is located in the center of the outer disc, and the sealing tube is perpendicular to the outer disc.

[0011] The aforementioned inflator for tubeless tires includes an outer disc with a connecting pipe communicating with the vent, and an air cylinder is detachably connected to the connecting pipe.

[0012] In the aforementioned blowout inflator for tubeless tires, the outer side of the outer disc is provided with an installation tube communicating with the inflation port, and the one-way air intake valve is screwed onto the installation tube.

[0013] In the aforementioned blowout inflator for tubeless tires, a pressure gauge is connected to the mounting pipe between the inflation port and the one-way air intake valve.

[0014] In the aforementioned blowout inflator for tubeless tires, a handle is fixedly connected to the outside of the gas tank, a vent valve is fixedly connected to the handle, and a trigger is provided on the vent valve.

[0015] In the aforementioned deflation device for tubeless tires, a lifting ring is fixed to the outside of the air tank on the opposite side of the handle, and the lifting ring is close to the deflation module.

[0016] In summary, the beneficial technical effects of this utility model are as follows:

[0017] This utility model's burst inflator can quickly inflate the air tank using an air pump, making it easy to carry. When in use, opening the vent valve allows the high-pressure gas in the tank to instantly and rapidly inflate the tubeless tire, ensuring a tight fit between the wheel hub and the tubeless tire for further inflation. This burst inflator is reasonably designed, easy to use, portable, and economical. Attached Figure Description

[0018] Figure 1 This is a partial sectional view of the present invention;

[0019] Figure 2 yes Figure 1 Enlarged view of part A;

[0020] Figure 3 This is a schematic diagram of the structure of the venting module of this utility model;

[0021] Figure 4 This is an exploded structural diagram of the venting and deflating module of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the elastic sealing gasket and support plate of this utility model;

[0023] Figure 6 This is a schematic diagram of the outer disc of this utility model.

[0024] The diagram shows: 1. Gas tank; 11. Vent valve; 111. Trigger; 12. Vent pipe; 13. Handle; 14. Lifting ring; 2. Inflation / Ventilation module; 3. Outer plate; 31. Inflation port; 32. Vent port; 33. Sealing pipe; 34. Support column; 35. Connecting pipe; 36. Mounting pipe; 4. Fixing ring; 5. Elastic sealing gasket; 51. Balance hole; 6. Return spring; 7. Base; 71. Recessed part; 72. Vent hole; 73. Limiting groove; 8. Support plate; 81. Limiting column; 9. Gasket. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-6 The present invention will be described in further detail below.

[0026] like Figure 1-4 As shown, a deflation device for tubeless tires includes an air tank 1. The opening of the air tank 1 is connected to a deflation / inflation module 2 for inflating or deflating the air tank 1. The deflation / inflation module 2 includes an outer plate 3, a retaining ring 4, an elastic sealing gasket 5, a return spring 6, and a base plate 7. The outer plate 3 has an inflation port 31 and a deflation port 32. A one-way air inlet valve (not shown in the figure) is provided on the inflation port 31. A sealing tube 33 communicating with the deflation port 32 is provided on the lower side of the outer plate 3. The outer plate 3 is sealed and fixed to the opening of the air tank 1 by screws. Multiple support columns 34 are provided circumferentially on the bottom surface of the outer plate 3. Below the outer plate 3, there are sequentially arranged... The fixing ring 4, the elastic sealing gasket 5, and the base plate 7 are fastened to the support column 34 by screws. The upper surface of the base plate 7 is provided with a downwardly recessed part 71. A sealed chamber is formed between the elastic sealing gasket 5 and the recessed part 71. The elastic sealing gasket 5 is provided with a balance hole 51 that connects to the chamber. The return spring 6 is located between the recessed part 71 and the elastic sealing gasket 5. The return spring 6 is used to push the elastic sealing gasket 5 against the opening of the sealing tube 33 for sealing. The recessed part 71 is provided with a vent hole 72. A vent valve 11 is connected to the outer wall of the gas tank 1. A vent pipe 12 connects the vent hole 72 and the vent valve 11.

[0027] like Figure 2 , 4 As shown, in this embodiment, the vent hole 72 is located in the center of the recessed portion 71. The upper surface of the recessed portion 71 is provided with a limiting groove 73 coaxial with the vent hole 72. The limiting groove 73 is a downwardly recessed ring shape and is adapted to the lower end of the return spring 6.

[0028] like Figure 2 , 4 As shown in Figure 5, the lower surface of the elastic sealing gasket 5 is fixedly connected to a support plate 8 that is adapted to the opening of the sealing tube 33. The bottom surface of the support plate 8 is provided with a limiting post 81 perpendicular to it, and the upper end of the reset spring 6 is embedded on the outside of the limiting post 81.

[0029] In one embodiment, the support plate 8 is circular, the limiting post 81 is located in the center of the support plate 8, the support plate 8 and the limiting post 81 are provided with a through hole in the center, the upper surface of the elastic sealing gasket 5 is provided with a gasket 9, and the screw passes through the gasket 9, the elastic sealing gasket 5 and the through hole of the support plate 8 in sequence and is screwed to the nut.

[0030] By fixing the support plate 8 to the bottom of the elastic sealing gasket 5, it can be ensured that the elastic sealing gasket 5 can stably and reliably abut against the opening of the sealing tube 33 under the thrust of the return spring 6, thereby achieving the sealing of the vent 32.

[0031] like Figure 6 As shown, in one embodiment, the vent 32 is located in the center of the outer disk 3, and the sealing tube 33 is perpendicular to the outer disk 3.

[0032] like Figure 1 , 4 As shown, the outer side of the outer disc 3 is provided with a connecting pipe 35 that communicates with the vent 32. An aerator (not shown in the figure) can be detachably connected to the connecting pipe 35. The aerator can be connected to the connecting pipe 35 by a threaded connection, which facilitates the maintenance and replacement of the aerator.

[0033] like Figure 1 , 4 As shown, in one embodiment, an installation pipe 36 communicating with an air inlet 31 is provided on the outer side of the outer disk 3, and a one-way air inlet valve is screwed onto the installation pipe 36.

[0034] A pressure gauge (not shown in the figure) is connected to the mounting pipe 36 between the inflation port 31 and the one-way air inlet valve. The pressure gauge facilitates the observation of the inflation pressure of the air tank 1, ensuring the safety of inflation.

[0035] like Figure 1 As shown, in one embodiment, a handle 13 is fixedly connected to the outside of the gas tank 1. The handle 13 can be a gun-type handle. The vent valve 11 is fixedly connected to the handle 13 and is provided with a trigger 111.

[0036] like Figure 1As shown, a lifting ring 14 is fixed to the outside of the gas tank 1 on the opposite side of the handle 13, and the lifting ring 14 is close to the venting module 2.

[0037] The usage process of this utility model is as follows:

[0038] Gas cylinder inflation: First, connect the air pump's air hose to the one-way inlet valve. High-pressure gas enters the gas cylinder 1 through the one-way inlet valve and inflation port 31. A portion of the high-pressure gas entering the gas cylinder 1 also enters the cavity formed by the elastic sealing gasket 5 and the chassis 7 through the balance hole 51 on the elastic sealing gasket 5. Inflation continues until the gas cylinder 1 is filled to the specified pressure value. After inflation, the air pump can be separated from the inflation device for easy carrying. During the above process, under the combined action of the return spring 6 and the pressure within the cavity formed by the elastic sealing gasket 5 and the chassis 7, the elastic sealing gasket 5 presses against the opening of the sealing tube 33, sealing the vent port 32 to prevent gas from escaping from the gas cylinder 1; simultaneously, the vent valve 11 is closed.

[0039] Air tank burst inflation: When burst inflation of a tubeless tire is required, hold the lifting ring 14 with one hand and the handle 13 with the other hand. Align the opening of the air cylinder with the gap between the tubeless tire and the wheel hub, and press the trigger 111 of the vent valve 11 to release the gas in the chamber enclosed by the elastic sealing gasket 5 and the chassis 7. At this time, the air pressure in the chamber enclosed by the elastic sealing gasket 5 and the chassis 7 is the same as the atmospheric pressure. Since the pressure inside the air tank 1 is greater than the atmospheric pressure, the high-pressure gas inside the air tank 1 applies pressure to the outer wall of the elastic sealing gasket 5 and overcomes the elastic force of the return spring 6, pushing the elastic sealing gasket 5 towards the chassis 7, thereby separating the elastic sealing gasket 5 from the opening of the sealing tube 33. The high-pressure gas inside the air tank 1 is instantly discharged from the vent 32 through the burst inflation cylinder, thus completing the instantaneous burst inflation of the tubeless tire, making the tubeless tire and the wheel hub fit tightly together, and ensuring further inflation of the tubeless tire.

[0040] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. An inflator for a vacuum tire comprising a gas cylinder, characterized by, The opening of the gas tank is connected with a charging and discharging module for charging or discharging the gas tank, the charging and discharging module comprises an outer disc, a fixing ring, an elastic sealing pad, a reset spring and a bottom disc, the outer disc is provided with a charging port and a discharging port, a one-way air inlet valve is arranged on the charging port, a sealing tube in communication with the discharging port is arranged on the lower side of the outer disc, the outer disc is fixedly connected with the opening of the gas tank, a plurality of support columns are arranged on the bottom surface of the outer disc in the circumferential direction, the fixing ring, the elastic sealing pad and the bottom disc are sequentially arranged below the outer disc and are fastened on the support columns by screws, the outer disc is fixedly connected with the opening of the gas tank, a recessed portion is arranged on the upper surface of the bottom disc, a closed cavity is formed between the elastic sealing pad and the recessed portion, a balance hole in communication with the cavity is arranged on the elastic sealing pad, the reset spring is located between the recessed portion and the elastic sealing pad, the reset spring is used to push the elastic sealing pad to abut against the tube opening of the sealing tube for sealing, a deflation hole is arranged on the recessed portion, a deflation valve is connected with the outer side wall of the gas tank, and a deflation tube is in communication between the deflation hole and the deflation valve.

2. The inflator for a vacuum tire according to claim 1, wherein The deflation hole is located in the center of the recessed portion, the upper surface of the recessed portion is provided with a limiting groove coaxial with the deflation hole, and the limiting groove is a downwardly recessed ring and is matched with the lower end of the reset spring.

3. The inflator for a run-flat tire according to claim 1, wherein A support plate matched with the tube opening of the sealing tube is fixedly connected to the lower surface of the elastic sealing pad, the bottom surface of the support plate is provided with a limiting column perpendicular thereto, and the upper end of the reset spring is embedded on the outer side of the limiting column.

4. The inflator for a run-flat tire according to claim 3, wherein The support plate is circular, the limiting column is located in the center of the support plate, the center of the support plate and the limiting column is provided with a through hole, the upper surface of the elastic sealing pad is provided with a gasket, a screw rod passes through the through holes of the gasket, the elastic sealing pad and the support plate and is screwed with a nut.

5. The inflator for a run-flat tire according to claim 1, wherein The discharging port is located in the center of the outer disc, and the sealing tube is perpendicular to the outer disc.

6. The inflator for a run-flat tire according to claim 1, wherein A connecting tube in communication with the discharging port is arranged on the outer side of the outer disc, and an explosion cylinder is detachably connected on the connecting tube.

7. The inflator for a run-flat tire according to claim 1, wherein An installation tube in communication with the charging port is arranged on the outer side of the outer disc, and the one-way air inlet valve is screwed on the installation tube.

8. The inflator for a run-flat tire according to claim 7, wherein A pressure gauge is connected on the installation tube between the charging port and the one-way air inlet valve.

9. The inflator for a run-flat tire according to claim 1, wherein A handle is fixedly connected to the outer side of the gas tank, the deflation valve is fixedly connected to the handle, and a trigger trigger is arranged on the deflation valve.

10. The inflator for a run-flat tire according to claim 9, wherein A lifting ring is fixedly connected to the outer side of the gas tank opposite to the handle, and the lifting ring is close to the charging and discharging module.

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