TWI642917B - Quick inflation joint with pressure gauge - Google Patents

Abstract

The rapid inflation joint with a pressure gauge of the present invention includes a body and an air pressure measurement device. The body includes an air inlet channel, an air outlet channel communicating with the air inlet channel, a receiving portion connecting the air inlet channel and the air outlet channel, and a communication channel. The perspective part of the accommodation part, the air inlet passage is suitable for connecting the high-pressure gas cylinder, the air outlet passage is suitable for connecting the gas nozzle, the air pressure measuring device includes a sliding member and an elastic member, and the sliding member is movably disposed in the accommodation The sliding member includes a pressure scale. The pressure scale is set on the outer peripheral surface of the sliding member and can read the air pressure data for the user through the see-through portion. The two ends of the elastic member respectively abut the receiving portion and the sliding member, thereby The quick inflation joint with a pressure gauge of the present invention has a simple structure, can reduce the manufacturing cost, and can accurately measure the air pressure value.

Description

Quick inflation joint with pressure gauge

The invention mainly discloses a quick inflation joint, especially a quick inflation joint with a pressure gauge.

The Republic of China Invention Patent Publication No. I504876 discloses a quick inflation joint with a pressure gauge, which includes a body and a gas nozzle joint. The body is provided with a channel, the channel is provided with a stop, and the body is provided with a stopper on one side of the channel. The accommodating space communicated with the channel. The body includes a sliding member, an elastic member, and a pressure gauge. The sliding member and the elastic member are disposed on the channel, and the sliding member selectively abuts against the stop portion of the channel and A first driving tooth portion is provided, an elastic member is provided between the sliding member and the stop portion, a pressure gauge is provided in the accommodation space and has a rotating shaft selectively rotating relative to the body, and the rotating shaft is provided with a first driving tooth The second driving tooth portion which is engaged with each other and a pointer are connected, and the pointer rotates synchronously with the rotating shaft and can swing relative to the body, thereby indicating the value of the air pressure.

However, the above-mentioned quick inflation joint with a pressure gauge must be provided with a plurality of parts such as a sliding member, an elastic member, a rotating shaft and a pointer of the pressure gauge. Therefore, the structure of the above-mentioned quick inflation joint with pressure gauge is complicated, resulting in high manufacturing cost and low product yield. In addition, the intermeshing driving teeth drive the rotating shaft and the pointer to be easily affected by frictional resistance, and the measured air pressure value is not accurate enough.

In view of the fact that the above-mentioned problems of the prior art cannot be effectively solved and overcome, the applicant filed this patent application to solve the foregoing problems.

The technical problem to be solved by the rapid inflation joint with a pressure gauge of the present invention is that the traditional rapid inflation joint with a pressure gauge has a complicated structure, which causes an increase in manufacturing cost and the measured air pressure value is not accurate enough.

Therefore, the present invention provides a quick inflation joint with a pressure gauge, which includes a body and an air pressure measuring device. The main body includes an air inlet passage, an air outlet passage communicating with the air inlet passage, an accommodation portion communicating with the air inlet passage and the air outlet passage, and a see-through portion communicating with the accommodation portion. The air inlet passage is suitable for connection High-pressure gas cylinder, the gas outlet channel is suitable for connecting the gas nozzle. The air pressure measuring device includes a sliding member and an elastic member. The sliding member is movably disposed in the accommodating portion. The sliding member includes a pressure scale. The pressure scale is disposed on an outer peripheral surface of the sliding member. The user can read the air pressure data through the see-through portion, and the two ends of the elastic member respectively abut the receiving portion and the sliding member. The high-pressure gas in the high-pressure gas cylinder can enter the outlet channel and the accommodating portion through the intake channel, the high-pressure gas entering the outlet channel enters the object to be inflated through the gas nozzle, and the high-pressure gas entering the accommodating portion is pushed The sliding member moves the sliding member relative to the accommodating portion and compresses the elastic member, and the user reads the pressure scale through the see-through portion. Thereby, the quick inflation joint with a pressure gauge of the present invention has a simple structure, can reduce the manufacturing cost, and can accurately measure the pressure value

Other objects, advantages, and novelty of the present invention will be more apparent from the following detailed description and related drawings.

Regarding the technology, means and effects used in the present invention, four preferred embodiments are described in detail below with reference to the drawings. This is for illustration purposes only, and is not limited by such structures in patent applications.

Referring to FIGS. 1 to 6, a first embodiment of a quick inflation joint with a pressure gauge according to the present invention includes a main body 10 and an air pressure measuring device 20 disposed on the main body 10.

In this embodiment, the body 10 can be integrally formed by die-casting an aluminum alloy. The body 10 includes an intake passage 11, an outlet passage 12 communicating with the intake passage 11, an accommodation portion 13 communicating with the intake passage 11 and the outlet passage 12, a see-through portion 14 communicating with the accommodation portion 13, and a communication inlet The assembling portion 15 of the air passage 11 and the accommodating portion 13. The air inlet passage 11 is adapted to be connected to a high-pressure gas cylinder 30, and the air outlet passage 12 is adapted to be connected to a gas nozzle 40 of an object to be inflated. The air inlet passage 11 and the accommodating portion 13 extend along the first axis A1 and are formed on the body 10, and the air outlet passage 12 extends along the second axis A2 that is perpendicular to the first axis A1 and are formed on the body 10. The accommodating portion 13 includes a first section 131 communicating with the intake passage 11 and the outlet channel 12, a second section 132 communicating with the first section 131, and a first positioning portion 133. The first positioning portion 133 is integrally formed in the first The second segment 132 is opposite to one end of the first segment 131. The first segment 131 has a first inner diameter D131 perpendicular to the first axis A1, and the second segment 132 has a second inner diameter D132 perpendicular to the first axis A1. The first inner diameter D131 is larger than the second inner diameter D132 and forms a first limiting edge 134 integrally with the accommodating portion 13. The see-through portion 14 communicates with the second section 132 of the accommodating portion 13 along the radial direction of the first axis A1 and penetrates the body 10. The see-through portion 14 includes a transparent cover 141, and a user can pass through the cover of the see-through portion 14. 141 reads the air pressure data measured by the air pressure measurement device 20. The assembling part 15 is formed at one end of the body 10 where the air inlet passage 11 is provided, and the air inlet passage 11 is disposed in the assembling part 15. The assembling part 15 has a third inner diameter D15 perpendicular to the first axis A1 and a third inner diameter. D15 is larger than the first inner diameter D131, and a piercing member 151 for piercing the high-pressure gas cylinder 30 and a check ring 152 surrounding the piercing member 151 to prevent the high-pressure gas from leaking out are provided in the assembly portion 15.

The air pressure measuring device 20 includes a sliding member 21 and an elastic member 22. In this embodiment, the sliding member 21 can be cylindrical, and the sliding member 21 is movably disposed along the first axis A1 at the accommodating portion 13. The sliding member 21 has a first end 2101 along the first axis A1. In contrast to a second end 2102 opposite to the first end 2101, the sliding member 21 includes a pressure scale 211, a second positioning portion 212, and a second limiting edge 213. The pressure scale 211 is provided on the outer peripheral surface of the sliding member 21 and can be used by the user to read the air pressure data through the cover 141 of the see-through portion 14. The pressure scale 211 includes a unit area 2111 and a scale area 2112. In this embodiment, the unit Zone 2111 is marked in pounds per square inch (PSI) units, and the pressure range for scale zone 2112 is from 0 to 150 PSI. The second positioning portion 212 extends from the second end 2102 of the sliding member 21 along the first axis A1 to the first end 2101 of the sliding member 21. In this embodiment, the second positioning portion 212 can have a circular hole shape and be formed by The second end 2102 of the sliding member 21 extends along the first axis A1 to the first end 2101 of the sliding member 21. The second limiting edge 213 is disposed at the first end 2101 of the sliding member 21 and extends radially from the outer peripheral surface of the sliding member 21. The second limiting edge 213 selectively abuts the first limiting edge 134.

The elastic member 22 is disposed between the accommodating portion 13 and the sliding member 21. In this embodiment, the elastic member 22 can be a spring. Both ends of the elastic member 22 elastically abut the accommodating portion 13 along the first axis A1. The first positioning portion 133 and the second positioning portion 212 of the sliding member 21 make the elastic member 22 be compressed to the first of the receiving portion 13 when the sliding member 21 moves relative to the receiving portion 13 along the first axis A1. Between the positioning portion 133 and the second positioning portion 212 of the slider 21.

As shown in FIGS. 4 to 6, when the inflation operation is not performed, the user can view the unit area 2111 of the pressure scale 211 through the cover 141 of the see-through portion 14. When inflating, connect the air outlet channel 12 to the air nozzle 40 of the object to be inflated, and then connect the high-pressure gas cylinder 30 to the air inlet channel 11 so that the piercing member 151 provided in the assembly portion 15 pierces the high-pressure gas bottle. An opening is formed at the top of the high-pressure gas cylinder 30. The high-pressure gas in the high-pressure gas cylinder 30 passes through the opening and the intake passage 11 and enters the outlet passage 12 and the accommodation portion 13. The high-pressure gas entering the outlet passage 12 passes through the gas nozzle 40. Entering the to-be-inflated object, the high-pressure gas entering the accommodating portion 13 pushes against the first end 2101 of the sliding member 21 to move the sliding member 21 relative to the accommodating portion 13 along the first axis A1, and the elastic member 22 is compressed in the accommodating portion. Between the first positioning portion 133 of the setting portion 13 and the second positioning portion 212 of the slider 21, the user can read the scale area 2112 of the pressure scale 211 through the cover 141 of the see-through portion 14.

In addition, the second limiting edge 213 of the sliding member 21 can abut the first limiting edge 134 of the accommodating portion 13 as the sliding member 21 moves relative to the accommodating portion 13 along the first axis A1. The limiting edge 213 abuts the first limiting edge 134, that is, the maximum pressure value displayed in the scale area 2112 corresponding to the pressure scale 211. As shown in FIG. 6, in this embodiment, the scale area 2112 of the pressure scale 211 is displayed. The maximum pressure value is 150PSI.

Please refer to FIG. 7 and FIG. 8. The structure of the second embodiment of the quick inflation joint with a pressure gauge of the present invention is substantially the same as that of the first embodiment. The difference is that the first section 131 a and the second section 132 a of the accommodating portion 13 a have The same fourth inner diameter D13a perpendicular to the first axis A1, the first positioning portion 133a is integrally formed at an end of the second section 132a opposite to the first section 131a, and the first limiting edge 134a of the receiving portion 13a It is integrally formed on the end surface of the first positioning portion 133a. The second limiting edge 213a of the sliding member 21a is disposed on an end surface of the second end 2102 of the sliding member 21a, and the second limiting edge 213a selectively abuts the first limiting edge 134a.

Therefore, the second limiting edge 213a of the sliding member 21a can abut the first limiting edge 134a of the receiving portion 13a as the sliding member 21a moves relative to the receiving portion 13a along the first axis A1. The limiting edge 213a abuts the first limiting edge 134a, that is, the maximum air pressure value displayed on the pressure scale 211a.

Please refer to FIG. 9 and FIG. 10. The structure of the third embodiment of the quick inflation joint with a pressure gauge according to the present invention is substantially the same as that of the second embodiment. The difference is that the see-through portion 14 b is disposed on the first axis along the first axis A1. The positioning portion 133b extends through the body 10b. The sliding member 21b is movably disposed along the first axis A1 at the accommodating portion 13b and penetrates the see-through portion 14b. The second positioning portion 212b of the sliding member 21b is disposed at the first end 2101 of the sliding member 21b and is slid by The outer peripheral surface of the moving member 21b extends radially. In this embodiment, the elastic member 22b is sleeved on the outer peripheral surface of the sliding member 21b, and both ends of the elastic member 22b abut against the first positioning portion 133b of the accommodating portion 13b and the second positioning portion 212b of the sliding member 21b, respectively. .

Therefore, the high-pressure gas entering the accommodating portion 13b is pushed against the first end 2101 of the sliding member 21b, so that the sliding member 21b moves relative to the accommodating portion 13b along the first axis A1 and protrudes from the body 10b through the see-through portion 14b. In addition, the elastic member 22b is compressed between the first positioning portion 133b of the accommodating portion 13b and the second positioning portion 212b of the sliding member 21b, and the user can project the sliding movement outside the body 10b through the see-through portion 14b. Piece 21b reads the pressure scale 211b.

Please refer to FIG. 11 and FIG. 12. The structure of the fourth embodiment of the quick inflation joint with a pressure gauge of the present invention is substantially the same as that of the first embodiment. The difference is that the air outlet channel 12 c and the accommodating portion 13 c extend along the first axis A1. In the body 10c, the air inlet passage 11c is formed in the body 10c along a second axis A2 perpendicular to the first axis A1.

In summary, the quick inflation joint with a pressure gauge of the present invention has the following advantages:

1. Since the air pressure measuring device 20 includes only two members, such as a sliding member 21, 21a, 21b and an elastic member 22, 22b, and the third inner diameter D15 of the assembly portion 15 is larger than the first inner diameter D131, the sliding member 21, 21a, 21b and the elastic members 22, 22b can be assembled in sequence through the assembly portion 15 into the accommodation portion 13 to complete the assembly. The rapid inflation joint with the pressure gauge of the present invention not only has a small number of components, but also the assembly process is greatly Simplified, so it can effectively reduce manufacturing costs and improve product yield.

2. The high-pressure gas is used to directly push the sliding members 21, 21a, and 21b along the first axis A1 to move relative to the accommodating portions 13, 13a, and 13b, so as to avoid excessive movement of components and the influence of frictional resistance between components, resulting in pressure measurement errors. The quick inflation joint with the pressure gauge of the invention can accurately measure the air pressure value.

3. Utilize the arrangement of the first limiting edges 134, 134a and the second limiting edges 213, 213a to avoid damage to the elastic member 22 due to excessive compression, and the first positioning portions 133, 133a and the first limiting edges 134, 134a is integrally formed on the body 10, so that the body 10 has a structural strength capable of withstanding the impact of high-pressure gas in the high-pressure gas cylinder 30, thereby improving the service life of the rapid inflation joint with a pressure gauge of the present invention.

However, the above are only the preferred embodiments of the present invention. When the scope of implementation of the present invention cannot be limited by this, the changes in numerical values or the replacement of equivalent elements, or the equivalent changes made in accordance with the scope of the patent application of the present invention and Modifications should still fall within the scope of the invention patent.

10‧‧‧ Ontology

11‧‧‧Air inlet channel

12‧‧‧air outlet

13‧‧‧accommodation department

131‧‧‧ first paragraph

D131‧‧‧first inner diameter

132‧‧‧ second paragraph

D132‧‧‧Second inner diameter

133‧‧‧First positioning department

134‧‧‧First limit margin

14‧‧‧ Perspective Department

141‧‧‧Shield

15‧‧‧Assembly Department

D15‧‧‧Third inner diameter

151‧‧‧ Piercing piece

152‧‧‧Loop

20‧‧‧ Air pressure measuring device

21‧‧‧Slip

2101‧‧‧ the first end

2102‧‧‧Second End

211‧‧‧Pressure scale

2111‧‧‧Unit area

2112‧‧‧ Scale

212‧‧‧Second Positioning Department

213‧‧‧Second Limit Margin

22‧‧‧Elastic piece

30‧‧‧high-pressure gas cylinder

40‧‧‧gas nozzle

A1‧‧‧first axis

A2‧‧‧Second axis

13a‧‧‧accommodation department

131a‧‧‧first paragraph

132a‧‧‧paragraph 2

D13a‧‧‧ Fourth inner diameter

134a‧‧‧First limit margin

133a‧‧‧First positioning unit

21a‧‧‧Slip

211a‧‧‧Pressure scale

213a‧‧‧Second Limit Margin

10b‧‧‧ Ontology

13b‧‧‧accommodation department

133b‧‧‧First positioning unit

14b‧‧‧ Perspective Department

21b‧‧‧Slip

211b‧‧‧Pressure scale

212b‧‧‧Second positioning section

22b‧‧‧elastic

10c‧‧‧ Ontology

11c‧‧‧Air inlet channel

12c‧‧‧Air outlet

13c‧‧‧Accommodation Department

FIG. 1 is a perspective view of a first embodiment of a quick inflation joint with a pressure gauge according to the present invention. FIG. 2 is an exploded perspective view of the quick inflation joint with a pressure gauge shown in FIG. 1. FIG. 3 is a sectional view of the quick inflation joint with a pressure gauge shown in FIG. 1. FIG. 4 is a schematic diagram of the use of a quick inflation joint with a pressure gauge shown in FIG. 1, indicating that a high-pressure gas cylinder is connected to the intake passage, so that the high-pressure gas flows through the outlet passage to the gas nozzle and pushes against the sliding movement in the accommodation portion Pieces. FIG. 5 is a top view of the quick inflation joint with a pressure gauge shown in FIG. 1, showing that the pressure scale of the sliding member is at an initial position. FIG. 6 is a continuation of FIG. 5, showing that the high-pressure gas of the high-pressure gas cylinder is pushed against the sliding member in the accommodation portion and the pressure scale is read through the perspective portion. FIG. 7 is a cross-sectional view of a second embodiment of a quick inflation joint with a pressure gauge according to the present invention. FIG. 8 is a schematic diagram of the use of a quick inflation joint with a pressure gauge shown in FIG. 7, which shows that a high-pressure gas cylinder is connected to the intake passage, so that the high-pressure gas flows through the outlet passage to the gas nozzle and pushes against the sliding movement in the accommodation portion. Pieces. FIG. 9 is a cross-sectional view of a third embodiment of a quick inflation joint with a pressure gauge according to the present invention. FIG. 10 is a schematic diagram of the use of a quick inflation joint with a pressure gauge shown in FIG. 9, showing that a high-pressure gas cylinder is connected to the intake passage, so that the high-pressure gas flows through the outlet passage to the gas nozzle and pushes against the sliding movement in the accommodation portion. Pieces. 11 is a cross-sectional view of a fourth embodiment of a quick inflation joint with a pressure gauge according to the present invention. FIG. 12 is a schematic diagram of the use of a quick inflation joint with a pressure gauge shown in FIG. 11, indicating that a high-pressure gas cylinder is connected to the intake passage, so that the high-pressure gas flows through the outlet passage to the gas nozzle and pushes against the sliding movement in the accommodation portion. Pieces.

Claims (10)

A quick inflation joint with a pressure gauge includes: a body comprising an intake passage, an exhaust passage communicating with the intake passage, a receiving portion communicating with the intake passage and the exhaust passage, and a communication portion A see-through portion of the accommodation portion, the air inlet passage is suitable for connecting a high-pressure gas cylinder, the air outlet passage is suitable for connecting a gas nozzle; and an air pressure measurement device, the air pressure measurement device includes a sliding member and an elastic member, the A sliding member is movably disposed on the accommodating portion, and the sliding member includes a pressure scale. The pressure scale is provided on an outer peripheral surface of the sliding member and is capable of reading air pressure data for a user through the see-through portion. The elastic member The two ends respectively abut the receiving portion and the sliding member; the high-pressure gas in the high-pressure gas cylinder can enter the outlet channel and the receiving portion through the intake channel, and the high-pressure gas entering the outlet channel passes through the gas nozzle When entering the to-be-inflated object, the high-pressure gas entering the accommodating part pushes against the sliding part, so that the sliding part moves relative to the accommodating part and compresses the elastic part, and the user passes through the see-through part The interpretation of the pressure scale. The quick inflation joint with a pressure gauge according to claim 1, wherein the air inlet channel and the accommodating portion extend along a first axis and are formed on the body, and the air outlet channel extends along a second axis that is perpendicular to the first axis. An axis extends from the body. The quick inflation joint with a pressure gauge according to claim 1, wherein the outlet channel and the accommodating portion extend along a first axis and are formed on the body, and the inlet channel extends along a second An axis extends from the body. The quick inflation joint with a pressure gauge according to claim 2 or 3, wherein the accommodating portion includes a first section connecting the intake passage and the outlet passage, a second section connecting the first section, and a A first positioning portion, which is integrally formed at an end of the second segment opposite to the first segment, the sliding member includes a second positioning portion, and the elastic member is elastically disposed on the first positioning portion And the second positioning portion. The quick inflation joint with a pressure gauge according to claim 4, wherein the first section has a first inner diameter perpendicular to the first axis, and the body includes an assembly that communicates the intake passage with the accommodating portion The assembling part is provided in the assembling part, the assembling part has a third inner diameter perpendicular to the first axis, and the third inner diameter is larger than the first inner diameter. The quick inflation joint with a pressure gauge according to claim 5, wherein the sliding member has a first end and a second end opposite to the first end, and the second positioning portion is formed by the first end of the sliding member. The two ends extend along the first axis to the first end of the sliding member. The quick inflation joint with a pressure gauge according to claim 6, wherein the see-through portion communicates with the receiving portion along the radial direction of the first axis and penetrates the body. The quick inflation joint with a pressure gauge according to claim 7, wherein the second section has a second inner diameter perpendicular to the first axis, and the first inner diameter is greater than the second inner diameter and is accommodated in the accommodation. The sliding part includes a second limiting edge, and the second limiting edge is disposed at the first end of the sliding member and is radially formed by the outer peripheral surface of the sliding member. Extended, the second limiting edge selectively abuts the first limiting edge. The quick inflation joint with a pressure gauge according to claim 7, wherein the accommodating portion includes a first limiting edge, the first limiting edge is integrally formed on an end surface of the first positioning portion, and the sliding member The second limiting edge is disposed on an end surface of the second end of the sliding member, and the second limiting edge selectively abuts the first limiting edge. The quick inflation joint with a pressure gauge according to claim 5, wherein the sliding member has a first end and a second end opposite to the first end, and the second positioning portion is disposed on the sliding member. The first end extends radially from the outer peripheral surface of the sliding member. The see-through portion is disposed on the first positioning portion along the axial direction of the first axis and penetrates the body. The sliding member can move along the first axis. The ground is disposed on the accommodating portion and penetrates the see-through portion.