Barometer with multi-functions of measurement and depressurization

A barometer with multi-functions of measurement and depressurization has a body, an intake set, an exhaust set, a depressurizing set and a pressure meter. The intake set is mounted on a side of the body. The exhaust set and the depressurizing set are mounted on the body and aligning with the intake set. The pressure meter is mounted on a top surface of the body. The body has an inner channel communicating with the intake set, the exhaust set, the depressurizing set and the pressure meter. Thus, the functions of inflating, pressure measuring, depressurization and re-inflating can be accomplished by the barometer for eliminating the inconvenience of frequent installing and removing an inflation apparatus, a depressurization device and a pressure meter.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a barometer, especially a barometer with multi-functions of measurement and depressurization, which can measure a pressure of an inflatable object during inflating and can depressurize the inflatable object when the pressure of the inflatable object exceeds the limit.

2. Description of the Prior Arts

Generally, inflatable objects such as balls, cushions and tires have airbags to store air. In an inflating process, a conventional inflation apparatus is connected directly or indirectly to the airbag of the inflatable object. The indirect connection means an inflation needle is used between the conventional inflation apparatus and the inflatable object and then the inflation apparatus is operated to inflate air into the inflatable object. After inflation of the inflatable object, the conventional inflation apparatus is removed and a pressure of the inflatable object is measured by a barometer. If the pressure of the inflatable object is sufficient, the inflating operation is finished. If the pressure of the inflatable object is still not enough, the conventional inflation apparatus continuously inflates air into the inflatable object. In addition, if the pressure of the inflatable object exceeds the limit, a depressurization device or the inflation needle is connected to the inflatable object for releasing the pressure of the inflatable object.

However, during the above-mentioned operations of inflating, measuring, discharging, and re-inflating with the conventional inflation apparatus, operations of the barometer and the inflatable object are complicated and inconvenient to users and the frequency of connecting and detaching the conventional inflation apparatus, the barometer and the inflatable object is high, and this will increase the time of inflating the inflatable object and will influence the efficiency of inflating the inflatable object.

To overcome the shortcomings, the present invention provides a barometer with multi-functions of measurement and depressurization to mitigate or obviate the aforementioned problems.

SUMMARY OF THE INVENTION

The main objective of the present invention is to provide a barometer with multi-functions of measurement and depressurization, which can measure a pressure of an inflatable object during inflating and can depressurize the inflatable object when the pressure of the inflatable object exceeds the limit.

The barometer with multi-functions of measurement and depressurization has a body, an intake set, an exhaust set, a depressurizing set and a pressure meter. The intake set is mounted on a side of the body. The body has an inner channel. The exhaust set and the depressurizing set are mounted respectively in the body. The pressure meter is mounted on a top surface of the body. The inner channel communicates with the intake set, the exhaust set, the depressurizing set and the pressure meter.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

With reference toFIG. 1, a first embodiment of a barometer with multi-functions of measurement and depressurization in accordance with the present invention comprises a body10, an intake set20, an exhaust set30, a depressurizing set40and a pressure meter50.

With reference toFIGS. 1 and 2, the body10has a top half, a bottom half, an inflation base11, an exhaust base12, a meter base13, multiple side grooves14, and an inner channel101. The top half of the body10is a hemisphere and the bottom half is an arc. The inflation base11is formed on and extends out of a side of the body10. The exhaust base12is mounted on the body10and aligns with the inflation base11. The meter base13is formed in a top surface of the body10. The side grooves14are formed on the bottom half of the body10at intervals between the inflation base11and the exhaust base12. The inner channel101is formed in the body10.

With reference toFIGS. 2 to 4, the inflation base11has an inlet111formed in the inflation base11and communicating with the inner channel101. The exhaust base12is connected to the body10and has an exhaust hole121and a depressurizing hole122. The exhaust hole121is formed in an end of the exhaust base12distal from the body10and communicates with the inner channel101. The depressurizing hole122is formed perpendicularly to the exhaust hole121on the exhaust base12, and communicates with the inner channel101. The meter base13has a measurement hole131and a linking ring132. The measurement hole131is formed in a bottom surface of the meter base13and communicates with the inner channel101. The linking ring132is formed on and protrudes from the top surface of the body10.

The intake set20is connected to the inflation base11of the body10and has a connecting element21, a limiting cap22and a ball23. The connecting element21is mounted in the inlet111of the inflation base11and has a stepped channel211communicating with the inlet111and the inner channel101. The stepped channel211has an inner part and an outer part. An inner end of the inner part of the stepped channel211is an oval opening. The outer part of the stepped channel211has an inner diameter larger than an inner diameter of the inner part of the stepped channel211.

The limiting cap22is hollow, is mounted in the connecting element21and has a first end221, a second end222and a limiting cap channel223. The first end221of the limiting cap22is mounted in the inner part of the stepped channel211. The second end222of the limiting cap22is formed with the first end221of the limiting cap22and has an outer diameter larger than an outer diameter of the first end221of the limiting cap22. The limiting cap channel223is formed through the first end221and the second end222of the limiting cap22and communicates with the stepped channel211of the connecting element21. The ball23is movably mounted in and is limited in the stepped channel211of the connecting element21between the limiting cap22and the inner end of the inner part of the stepped channel211. When high pressure air is inflated into the connecting element21, the ball23is pushed to move away from the limiting cap22.

The exhaust set30is connected to the exhaust base12of the body10and has a joining element31and a gasket32. The joining element31is mounted in the exhaust hole121of the exhaust base12and has a joining hole311formed through a center of the joining element31and communicating with the inner channel101. The gasket32is connected to the exhaust base12in the exhaust hole121and abuts a side of the joining element31. The gasket32has a gasket hole321formed through a center of the gasket32to communicate with the inner channel101.

With the reference toFIGS. 2 and 6, the depressurizing set40has an installation base43, a spring42, a first o-ring44, a second o-ring45, a supporting cap46, a push rod48, a third o-ring47, and a top cover41.

The installation base43is connected to the exhaust base12of the body10in the depressurizing hole122and has a passage431, a receiving recess432, a first groove433and a second groove434. The passage431is formed through a center of the installation base43and communicates with the depressurizing hole122. The receiving recess432is formed in an inner side of the installation base43and communicates with the passage431. The first groove433is formed on an outer surface of the installation base43at a middle of the installation base43. The second groove434is formed in an inner surface of the installation base43opposite to the receiving recess432.

The spring42is mounted in the receiving recess432. The first o-ring44is mounted around the first groove433. The second o-ring45is mounted in the second groove434. The supporting cap46has a central opening461formed through the supporting cap46. The supporting cap46is mounted around the installation base43to cover the second o-ring45and the second groove434.

The push rod48is mounted through the installation base43and has a head portion482, a shaft portion483and a depressurizing notch481. The head portion482of the push rod48is mounted in the depressurizing hole122of the exhaust base12. One end of the shaft portion483is mounted on a surface of the head portion482. The depressurizing notch481is formed on an outer face of the shaft portion483. The third o-ring47is mounted around the shaft portion483and abuts a surface of the head portion482. The shaft portion483is mounted through the central opening461and the passage431. The other end of the shaft portion483is mounted through the spring42and is connected to the top cover41. The top cover41is connected to the push rod48and abuts the spring42to move outwardly relative to the exhaust base12, so as to close the passage431of the installation base43by the third o-ring47as shown inFIG. 3.

With reference toFIG. 4, the pressure meter50is mounted in the meter base13and has a mounting cover51mounted around the linking ring132of the meter base13. The mounting cover51is screwed on an outer wall of the linking ring132, so the pressure meter50can be held in the meter base13.

With reference toFIGS. 7 and 8, a second embodiment of a barometer with multi-functions of measurement and depressurization in accordance with the present invention has a structure substantially same as that in the first embodiment except that a stepped contour is formed on the bottom half of the body10, and the body10has a cover body15and a receiving space16. The cover body15is a curved sheet and has two combining portions151extending respectively on two opposite ends of the cover body15. The combining portions151engage the body10. The receiving space16is formed in the bottom half of the body10and is covered by the cover body15.

The inner channel101of the body is connected to the inlet111, the exhaust hole121, the depressurizing hole122and the measurement hole131. For operating the present invention, an inflation apparatus is mounted into the inflation base11and an inflatable object is mounted directly or indirectly into the exhaust hole121of the exhaust base12. In an inflating process of the inflatable object, the pressure of the inflatable object can be detected by the pressure meter50mounted in the meter base13for determining whether to continue or discontinue inflating. With reference toFIGS. 3 and 5, when the pressure value of the inflatable object exceeds the limit, the user can press the top cover41of the depressurizing set40against an elastic force of the spring42. The push rod48is moved inwardly relative to the inner channel101, such that the depressurizing notch481is not closed by the second o-ring45, and the third o-ring47being separated from the supporting cap46in an open position to vent pressure from the depressurizing hole122past the depressuring notch481and into the receiving recess432. The extra pressure in the inflatable object can be released from the depressurizing notch481. The processes of inflating, measuring and depressurizing can be accomplished by the present invention more efficiently than the conventional technique of frequently installing and removing an inflation apparatus, a depressurization device and a pressure meter. An inflation needle can be placed in each one of the side grooves14. In addition, the second embodiment of the present invention has the receiving space16formed in the bottom half of the body10for accommodating the inflation needle.