TWI537467B - A fast inflatable joint with a pressure gauge protection device - Google Patents

Description

Quick inflation joint with pressure gauge protection

The present invention primarily discloses an inflation joint, and more particularly a quick inflation joint having a pressure gauge protection device.

Please refer to the patent case of "pressure measuring structure with pressure relief valve" of China Patent Certificate No. M450726, which is a pressure measuring structure with pressure relief valve, which mainly comprises a tubular body and a check piece. The switch button and pressure relief button, as well as a pressure gauge. Wherein, the system is provided with inlet and outlet ports, and first, second and third passages are arranged between the inlet and outlet ports, and the first channel lock switch button is locked, and the pressure release button is locked in the second channel. And the third channel lock pressure gauge.充气 The air inlet is connected to the air inlet, and the air inlet is connected to the air to be inflated. When the switch button is opened, the air inflator is inflated by the air inlet, and the pressure value is observed by the pressure gauge to reach the inflated object. When the pressure value is appropriate, the pressure relief valve is opened to allow excess air to be released from the second passage of the body, thereby maintaining a stable inflation state of the product to be inflated.

However, when the inflator of the above structure is used, the inflator must be installed on the body, and then the switch knob can be rotated to release the gas in the inflator, which is quite inconvenient in operation and slow in response.

Moreover, when the bicycle tire is pumped by the inflator, the pipe body must be separately connected to connect the joint to the nozzle of the tire, resulting in a large volume of the pump, which is not convenient for the bicycle rider to carry.

In view of the above-described deficiencies in the conventional structure, the inventors have invented a quick-filled joint having a pressure gauge protection device that overcomes all of the disadvantages of the above-described conventional structures.

The utility model relates to a quick inflation joint of a pressure gauge protection device, and the main purpose thereof is to provide an inflation joint comprising a body and a protection device. The body is provided with an air outlet portion and an air inlet portion, and the body is disposed at the air outlet portion and the air inlet portion. There is also an air flow passage, the air flow passage is connected to the air outlet portion and the air inlet portion of the body, and the body is further provided with a pressure gauge, the air inlet of the pressure gauge and the air flow passage are connected to each other, and the protection device is disposed on the air inlet of the body. The protection device comprises a receiving seat, a sliding member, a first elastic member and a second elastic member. The receiving seat is provided with a gas cylinder receiving groove and a sliding channel, and the gas cylinder receiving groove and the sliding channel are mutually The sliding passage is located at a side of the gas cylinder receiving groove close to the body, and the bearing seat is provided with an airtight ring in the middle of the sliding passage, and the sliding member can be slidably disposed in the sliding passage relative to the receiving seat, and both ends of the sliding member are The air-convex flange is located between the airtight ring and the cylinder receiving groove, and the width of the outer circumference of the airtight flange is not less than the width of the inner circumference of the airtight ring in the radial direction. An elastic member is disposed on the slide rail and located on a side of the airtight ring away from the body, and the second elastic member is disposed on the slide rail and located on a side of the airtight ring adjacent to the body, and the protection device can be between the first position and the second position. When the protection device is in the first position, the receiving seat is away from the body, and the airtight flange abuts against the airtight ring to close the sliding channel. When the protection device is in the second position, the receiving seat is close to the body, and the airtight flange is separated from the air. The dense ring makes the slide open. Because the protection device slides to the closed position in the first position, the high-pressure air of the high-pressure gas cylinder cannot directly enter the body, and the high-pressure air is directly flushed into the body, thereby causing the pressure gauge to be damaged due to excessive transient pressure and prolonging the service life of the pressure gauge.

Other objects, advantages and novel features of the invention will become apparent from the description and appended claims.

The present invention has been described with respect to the preferred embodiments and the accompanying drawings, which are intended to be illustrative only, and are not limited by the structure.

1 and 2, a perspective view and an exploded perspective view of a quick inflation joint having a pressure gauge protection device according to the present invention. The inflatable joint 10 of the present invention comprises a body 20 and a protection device 30; wherein:

The body 20 is provided with an air outlet portion 21 and an air inlet portion 22. The body 20 is further provided with an air flow passage 23 between the air outlet portion 21 and the air inlet portion 22, and the air flow passage 23 communicates with the air outlet of the body 20. The portion 21 and the intake portion 22. The body 20 is further provided with a pressure gauge 24, the air inlet of the pressure gauge 24 and the air flow passage 23 are in communication with each other, the pressure gauge 24 is located at one side of the air flow passage 23 and is located at the air outlet portion 21 and the air inlet portion Between the portions 22, the pressure gauge 24 has a disk shape, and the air outlet portion 21 and the air inlet portion 22 of the body 20 are respectively arranged in the circumferential direction of the pressure gauge 24, and the air outlet portion 21 and the air inlet portion 22 are spaced apart from each other. At 90 degrees, the body 20 is L-shaped.

An air outlet groove 25 is defined in the air outlet portion 21, and the air outlet groove 25 communicates with the air flow passage 23. The air outlet groove 25 has a circular hole shape, and the air outlet groove 25 is provided with a hole. The air nozzle joint 26 and the anti-outlet pin 27 are inserted into the air outlet groove 25 along the axial direction of the air outlet groove 25, and the air nozzle joint 26 can be assembled to the tire air nozzle. Along the lateral direction of the air outlet groove 25, the air outlet groove 25 is inserted, and the anti-drop pin 27 simultaneously abuts against the air nozzle joint 26 to prevent the air nozzle joint 26 from being disengaged from the body 20.

The air inlet portion 28 is further recessed with an air inlet groove 28, and the air inlet channel 28 communicates with the air flow channel 23, and the air inlet groove 28 has a circular hole shape. A positioning member 29 is disposed in the groove 28, and the positioning member 29 is inserted into the air inlet groove 28 in the lateral direction of the air inlet groove 28.

Please refer to FIG. 3 as a cross-sectional structural view of the quick inflation joint protection device with the pressure gauge protection device of the present invention. The protection device 30 is disposed on the air inlet portion 22 of the body 20. The protection device 30 includes a receiving seat 31, a sliding member 32, a first elastic member 33 and a second elastic member 34. The receiving seat 31 is provided. The receiving seat 31 is axially movable along the air inlet groove 28 and inserted into the air outlet groove 28 to selectively move the receiving seat 31 toward or away from the body 20. The receiving seat 31 is provided. A gas cylinder receiving groove 311 and a sliding channel 312 are disposed. The receiving socket 31 can be connected to the high pressure gas cylinder by the gas cylinder receiving groove 311, and the gas cylinder receiving groove 311 and the sliding channel 312 are in communication with each other. The slide 312 is located on a side of the cylinder receiving groove 311 adjacent to the body 20. The receiving seat 31 is provided with an airtight ring 313 in the sliding channel 312 and abutting against the flange 314. The edge 314 is located on a side of the airtight ring 313 adjacent to the body 20, and the airtight ring 313 and the abutting flange 314 abut each other.

The socket 31 is further provided with a thimble 315. The ejector pin 315 is located between the cylinder receiving groove 311 and the sliding path 312, and the thimble 315 has a needle tip shape on a side away from the body 20. The receiving seat 31 is recessed with a limiting recess 316 corresponding to the positioning member 29 of the body 20, and the positioning member 29 selectively abuts against both sides of the limiting recess 316. The socket 31 is prevented from coming off the body 20 and restricting the range of movement of the socket 31.

The sliding member 32 is slidably disposed in the sliding path 312 relative to the receiving seat 31. The sliding member 32 has a long rod shape, and a hermetic flange 321 is protruded between the two ends of the sliding member 32. The airtight flange 321 is located between the airtight ring 313 and the cylinder receiving groove 311. The width of the outer circumference of the airtight flange 321 is not less than the width of the inner circumference of the airtight ring 313 in the radial direction. The airtight flange 321 is selectively abutted against the airtight ring 313. When the airtight flange 321 abuts against the airtight ring 313, the slide 312 is closed when the airtight flange 321 is disengaged from the airtight ring 321 The slide 312 is open when the airtight ring 313 is closed.

The first elastic member 33 is disposed on the slide 312 and is located on a side of the airtight ring 313 away from the body 20. The two ends of the first elastic member 33 respectively abut against the airtight flange of the sliding member 32. 321 and the ejector pin 315 of the receiving seat 31, the first elastic member 33 can push the airtight flange 321 of the sliding member 32 to move toward the airtight ring 313 of the receiving seat 31.

The second elastic member 34 is disposed on the slide 312 and is located on a side of the airtight ring 313 adjacent to the body 20 . The two ends of the second elastic member 34 respectively abut against the abutting flange 314 of the receiving seat 31 . With the bottom of the air intake groove 28 of the body 20, the second elastic member 34 can push the receiving seat 31 to move away from the body 20.

Please refer to FIG. 4 and FIG. 5 for further use of the quick inflation joint protection device with the pressure gauge protection device in the first position. When the inflation joint 10 is in use, the air outlet portion 21 of the body 20 is first connected to the tire air nozzle via the air nozzle joint 26, and the air inlet portion 22 of the body 20 is connected to the high pressure gas cylinder via the protection device 30. The inflation joint 10 can pierce the seal of the high pressure gas cylinder by the ejector pin 315. The protection device 30 is movable between a first position and a second position. When the protection device 30 is in the first position, the receiving seat 31 is away from the body 20, and the airtight flange 321 abuts against the airtight ring 313. The slide 312 is closed. Because the sliding device 312 is closed when the protection device 30 is in the first position, the high-pressure air of the high-pressure gas cylinder cannot directly enter the body 20, and the high-pressure air is prevented from directly rushing into the body 20, thereby causing the pressure gauge 24 to be excessively pressurized due to an instantaneous pressure. The damage is extended to extend the service life of the pressure gauge 24.

Please refer to FIG. 6 to FIG. 8 , which are diagrams showing the use state of the quick inflation joint protection device with the pressure gauge protection device in the second position according to the present invention. When the user pushes the protection device 30 by hand, the protection device 30 can be moved to the second position. When the protection device 30 is in the second position, the receiving seat 31 is close to the body 20, and the airtight flange 321 is separated from the gas. The ring 313 opens the slide 312. During the movement of the protection device 30 from the first position to the second position, the airtight flange 321 is slowly disengaged from the airtight ring 313, and the gas in the high pressure gas cylinder can enter the body 20 via the slide 312. The air flow passage 23 finally allows gas to enter the pressure gauge 24 and the tire, enabling the inflation joint 10 to simultaneously perform air pumping and pressure measurement operations.

9 to FIG. 11 are a perspective view, an exploded perspective view and a cross-sectional structural view of a quick inflation joint having a pressure gauge protection device according to the present invention. The second embodiment of the present invention is substantially the same as the first embodiment. The main difference is that the body 20a is provided with a virtual axis L along the extending direction of the airflow passage 23a, and the body 20a is further provided with a side passage 231a. The 231a and the airflow channel 23a are in communication with each other. The side channel 231a extends through the two sides of the body 20a in a direction perpendicular to the virtual axis L. The body 20a is provided with a dodging recess 232a, the dodging recess 232a and the side. The channel 231a is in communication with each other. The dodging groove 232a surrounds the body 20a with the virtual axis L as a center. The pressure gauge 24a is sleeved outside the body 20a, and the surface of the pressure gauge 24a is away from the virtual axis L. The pressure gauge 24a is rotatable relative to the body 20a with the virtual axis L as an axis. The pressure gauge 24a is provided with a quantity side passage 241a corresponding to the doffering groove 232a and communicating with each other. The protection device 30a is selectively movable relative to the body 20a along the axial direction of the virtual axis L. The remaining structure of the inflation joint 10a is the same as that of the first embodiment, and will not be described herein.

The inflation joint 10a is also capable of rotating the pressure gauge 24a while pumping, and the surface of the pressure gauge 24a is turned into a position to facilitate the user to observe the pressure value, and the pressure gauge 24a can be freely 360 degrees with respect to the body 20a. The rotation is performed so that the user can arbitrarily rotate the pressure gauge 24a to an optimum angle when the user inflates the inflation joint 10a under any conditions, thereby increasing the practicality of the pressure gauge 24a.

As far as the above is concerned, it can be concluded that the present invention has the following advantages:

1. The quick inflation joint of the invention with a pressure gauge protection device, wherein the inflation joint comprises a body and a protection device, the body is provided with an air outlet portion and an air inlet portion, and the body is further between the air outlet portion and the air inlet portion. An air flow passage is provided, and the air flow passage is connected to the air outlet portion and the air inlet portion of the body, and the body is further provided with a pressure gauge, the air inlet of the pressure gauge and the air flow passage are connected to each other, and the protection device is disposed at the air inlet portion of the body to protect The device comprises a receiving seat, a sliding member, a first elastic member and a second elastic member. The receiving seat is provided with a cylinder receiving groove and a sliding passage, and the cylinder receiving groove and the sliding passage communicate with each other. The slideway is located on a side of the gas cylinder receiving groove close to the body, and the bearing seat is provided with an airtight ring in the middle of the slideway, and the sliding component can be arranged in the slideway sliding relative to the receiving seat, and the two ends of the sliding component are protruded There is a hermetic flange, the hermetic flange is located between the airtight ring and the cylinder receiving groove, and the width of the outer periphery of the airtight flange is not less than the width of the inner circumference of the airtight ring in the radial direction, the first elasticity Set on slip The second elastic member is disposed on the side of the airtight ring away from the body, and the second elastic member is disposed on the side of the airtight ring near the body, and the protection device is movable between the first position and the second position, and the protection device is first. When the position is away, the receiving seat is away from the body, the airtight flange abuts against the airtight ring, and the sliding channel is closed. When the protection device is in the second position, the receiving seat is close to the body, and the airtight flange is separated from the airtight ring, so that the sliding channel is opened. . Because the protection device slides to the closed position in the first position, the high-pressure air of the high-pressure gas cylinder cannot directly enter the body, and the high-pressure air is directly flushed into the body, thereby causing the pressure gauge to be damaged due to excessive transient pressure and prolonging the service life of the pressure gauge.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, so that the numerical value is changed or the equivalent element is replaced, or the equivalent of the scope of the patent application of the present invention. Changes and modifications are still within the scope of the invention patent.

10‧‧‧Inflatable joints
20‧‧‧ body
21‧‧‧Exhaust department
22‧‧‧Intake Department
23‧‧‧Air passage
24‧‧‧ pressure gauge
25‧‧‧ Venting groove
26‧‧‧Air nozzle joint
27‧‧‧Anti-out of stock
28‧‧‧Air intake groove
29‧‧‧ Positioning parts
30‧‧‧protection device
31‧‧‧ socket
311‧‧‧Cylinder receiving groove
312‧‧ ‧ slide
313‧‧‧ airtight ring
314‧‧‧Abut the flange
315‧‧‧ thimble
316‧‧‧ Limit groove
32‧‧‧Slipper
321‧‧‧ airtight flange
33‧‧‧First elastic parts
34‧‧‧Second elastic parts
10a‧‧‧Inflatable joint
20a‧‧‧ Ontology
23a‧‧‧Air passage
231a‧‧‧ side channel
232a‧‧‧Dodge groove
24a‧‧‧ pressure gauge
241a‧‧‧ side channel
30a‧‧‧protection device
L‧‧‧ virtual axis

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of a first embodiment of a quick inflation joint having a pressure gauge protection device of the present invention. Figure 2 is a perspective exploded view of the first embodiment of the quick inflation joint of the present invention having a pressure gauge protection device. Figure 3 is a cross-sectional structural view showing the first embodiment of the quick inflation joint of the present invention with a pressure gauge protection device. Figure 4 is a view showing the state of use of the first embodiment of the protection device of the first embodiment of the quick inflation joint with the pressure gauge protection device of the present invention. Figure 5 is a view showing the state of use of the first embodiment of the protection device of the first embodiment of the quick inflation joint with the pressure gauge protection device of the present invention. Figure 6 is a view showing the state of use of the first embodiment of the quick-fitting joint of the present invention with a pressure gauge protection device in a second position. Figure 7 is a view showing the state of use of the first embodiment of the quick inflation joint of the present invention with a pressure gauge protection device in a second position. Figure 8 is a view showing the state of use of the first embodiment of the quick-inflating joint of the present invention with a pressure gauge protection device in a second position. Figure 9 is a perspective view of a second embodiment of the quick inflation joint of the present invention having a pressure gauge protection device. Figure 10 is a perspective exploded view of a second embodiment of the quick inflation joint of the present invention having a pressure gauge protection device. Figure 11 is a cross-sectional structural view showing a second embodiment of the quick inflation joint of the present invention having a pressure gauge protection device. Figure 12 is a motion diagram showing the rotation of the pressure gauge of the second embodiment of the quick inflation joint with the pressure gauge protection device of the present invention.

10‧‧‧Inflatable joints

20‧‧‧ body

21‧‧‧Exhaust department

22‧‧‧Intake Department

24‧‧‧ pressure gauge

26‧‧‧Air nozzle joint

30‧‧‧protection device

31‧‧‧ socket

311‧‧‧Cylinder receiving groove

Claims (15)

A quick inflation joint having a pressure gauge protection device, comprising: a body, the body is provided with an air outlet portion and an air inlet portion, and the body is further provided with an air flow passage between the air outlet portion and the air inlet portion The air flow passage is connected to the air outlet portion and the air intake portion of the body, and the body is further provided with a pressure gauge, the air inlet of the pressure gauge and the air flow passage are connected to each other; and a protection device, the protection device is disposed on the body The air intake portion includes a receiving seat, a sliding member, a first elastic member and a second elastic member, wherein the receiving seat is provided with a cylinder receiving groove and a slide, the cylinder The receiving slot and the sliding channel are in communication with each other, the sliding channel is located at a side of the cylinder receiving groove adjacent to the body, and the receiving seat is provided with an airtight ring in the ring of the sliding channel, and the sliding member can be opposite to the receiving seat Slidingly disposed in the slideway, a gas-tight flange is protruded between the two ends of the sliding member, and the airtight flange is located between the airtight ring and the cylinder receiving groove, the airtight flange The width of the outer circumference in the radial direction is not less than a width of the inner circumference of the inner ring of the airtight ring, the first elastic member is disposed on the slide rail and located at a side of the airtight ring away from the body, and the two ends of the first elastic member respectively abut the sliding member And the socket, the first elastic member can push the airtight flange of the sliding member to move toward the airtight ring of the receiving seat, the second elastic member is disposed on the sliding channel and located in the airtight The ring is adjacent to the side of the body, the two ends of the second elastic member respectively abut against the receiving seat and the body, and the second elastic member can push the receiving seat to move away from the body, the protection device can Moving between the first position and the second position, the receiving seat is away from the body when the protection device is in the first position, the airtight flange abuts against the airtight ring to close the sliding channel, the protection device In the second position, the receiving seat is adjacent to the body, and the airtight flange is disengaged from the airtight ring to open the sliding channel. The quick inflation joint of the pressure gauge protection device according to claim 1, wherein the body is recessed with an air outlet groove in the air outlet portion, and the air outlet groove and the air flow passage are connected to each other. a gas nozzle joint is disposed in the air outlet groove, and the air nozzle joint is inserted into the air outlet groove along the axial direction of the air outlet groove, and the body is further recessed with an air inlet groove at the air inlet portion. The air groove and the air flow passage are in communication with each other, and the receiving seat is axially movable along the air inlet groove and inserted into the air outlet groove. A quick inflation joint having a pressure gauge protection device according to claim 2, wherein a positioning member is disposed in the air inlet groove, and the positioning member is inserted into the air inlet groove along a lateral direction of the air inlet groove. The receiving sleeve is provided with a limiting groove corresponding to the positioning member of the body, and the positioning member selectively abuts against both sides of the limiting groove. The quick-filling joint with the pressure gauge protection device according to claim 3, wherein the air outlet groove is provided with an anti-off-pin, and the anti-discharge pin is inserted into the air outlet groove along the lateral direction of the air outlet groove, the anti-off-pin At the same time, it is abutted against the nozzle joint. A quick inflation joint having a pressure gauge protection device according to claim 4, wherein the pressure gauge is located at one side of the air flow passage and between the air outlet portion and the air inlet portion, and the pressure gauge has a disk shape. The air outlet portion and the air intake portion of the body are respectively arranged in the circumferential direction of the pressure gauge. A quick inflation joint having a pressure gauge protection device according to claim 5, wherein the air outlet portion and the air inlet portion are spaced apart from each other by 90 degrees, and the body has an L shape. A quick inflation joint having a pressure gauge protection device according to claim 4, wherein the receiving seat protrudes from the slide rail with an abutting flange, the abutting flange being located on a side of the airtight ring adjacent to the body The airtight ring and the abutting flange abut each other, the socket is further provided with a thimble, the thimble is located between the cylinder receiving groove and the sliding track, and the thimble is on a side away from the body Needle-shaped. The quick inflation joint of the pressure gauge protection device according to claim 7, wherein the two ends of the first elastic member respectively abut against the airtight flange of the sliding member and the ejector pin of the receiving seat, the second elasticity The two ends of the piece respectively abut against the abutting flange of the receiving seat and the bottom of the body intake groove. A quick inflation joint having a pressure gauge protection device according to claim 8, wherein the air outlet groove has a circular hole shape, and the air inlet groove has a circular hole shape, and the receiving seat has a cylindrical shape. A quick inflation joint having a pressure gauge protection device according to any one of claims 1 to 9, wherein the body is provided with a virtual axis along an extending direction of the air flow passage, and the pressure gauge is sleeved outside the body, The pressure gauge is rotatable relative to the body with the virtual axis as an axis. The quick inflation joint of the pressure gauge protection device according to claim 10, wherein the body is further provided with a side channel, the side channel and the air flow channel are connected to each other, and the body is provided with a dodging groove, the dodge The groove and the side passage are in communication with each other, and the pressure gauge is provided with a quantity side passage corresponding to the doffer groove and communicating with each other. A quick inflation joint having a pressure gauge protection device according to claim 11, wherein the side passages extend through both sides of the body in a direction perpendicular to the virtual axis. A quick-filling joint having a pressure gauge protection device according to claim 11, wherein the doffering groove surrounds the body one circumference with the virtual axis as a center, and the pressure gauge can be rotated 360 degrees with respect to the body. A quick inflation joint having a pressure gauge protection device as claimed in claim 11 wherein the surface of the pressure gauge is remote from the virtual axis. A quick inflation joint having a pressure gauge protection device according to claim 11, wherein the protection device selectively moves relative to the body along an axial direction of the virtual axis.