The present invention relates to a pressure gauge structure which is configured to separate a tested object from a contact film so as to avoid reduction of measurement accuracy resulting from chemical corrosion, oxidation, and rust, hence the pressure gauge structure is applicable for food and chemical fields widely.
A conventional pressure gauge structure is employed to measure a pressure value of gases or fluids so as to provide pressure parameters in production.
With reference to
The conventional pressure gauge structure sustains pressures sufficiently but contacts with the tested object, thus causing chemical corrosion, oxidation, and rust to influence accuracy of the conventional pressure gauge structure.
The present invention has arisen to mitigate and/or obviate the afore-described disadvantages.
The primary objective of the present invention is to provide a pressure gauge structure which is configured to separate a tested object from a contact film so as to avoid chemical corrosion, oxidation, and rust.
Further primary objective of the present invention is to provide a pressure gauge structure in which a protective sheet stops a tested object being off the charts because a distance produces between the protective sheet and the contact film, thus avoiding damage of a body.
Another primary objective of the present invention is to provide a pressure gauge structure in which a holder and a connector are one-piece formed so as to reduce manufacture process, assembly, and production cost.
To obtain above-mentioned objectives, a pressure gauge structure provided by the present invention contains: a body in which a bow-shaped frame and a holder mounted under the bow-shaped frame, a contact film defined between the bow-shaped frame and the holder, wherein a connector is connected on a bottom of the holder, and a test conduit passes through the holder and the connector and accommodates a tested object, wherein the contact film contacts with a separation washer corresponding to the contact film.
In another embodiment, a pressure gauge structure provided by the present invention contains: a body in which a bow-shaped frame and a holder mounted under the bow-shaped frame, a contact film defined between the bow-shaped frame and the holder, wherein a connector is connected on a bottom of the holder, and a test conduit passes through the holder and the connector and accommodates a tested object, wherein a protective sheet is defined between the bow-shaped frame and the contact film.
In another embodiment, a pressure gauge structure provided by the present invention contains: a body in which a bow-shaped frame and a holder mounted under the bow-shaped frame, a contact film defined between the bow-shaped frame and the holder, wherein a connector is connected on a bottom of the holder, and a test conduit passes through the holder and the connector and accommodates a tested object, wherein the holder and the connector are one-piece formed.
The present invention will be clearer from the following description when viewed together with the accompanying drawings, which show, for purpose of illustrations only, a preferred embodiment in accordance with the present invention.
With reference to
The contact film 2 contacts with a separation washer 3 corresponding to the contact film 2, wherein when the tested object sends pressure to the separation washer 3 via the test conduit 14, the separation washer 3 pushes the contact film 2 upward so as to measure pressure parameter(s) of the contact film 2 and to avoid the tested object contacting with the contact film 2, thus maintaining accuracy of the body 1 resulting from rust and prolonging service life of the body 1.
A contact surface of the separation washer 3 and the contact film 2 is irregularly wavy.
A contact surface of the separation washer 3 and the contact film 2 is flat, as shown in
The separation washer 3 includes multiple protrusions 31 arranged around a peripheral side thereof and configured to contact with the contact film 2 and the holder 12, such that the separation washer 3 offsets unequal action force resulting from the pressure so as to enhance closing effect, as illustrated in
The separation washer 3 is made of flexible material, such as rubber or silicone.
The contact film 2 includes a protective sheet 4 mounted above the contact film 2 and defined between the bow-shaped frame 11 and the contact film 2.
The holder 12 and the connector 13 are one-piece formed so as to reduce manufacture process, assembly, and production cost.
The connector 13 is longitudinal or lateral, as shown in
In operation, as illustrated in
When the tested object enters into the test conduit 14 at a high pressure quickly, the separation washer 3 and the contact film 2 are driven to move upward, wherein when the pressure is more than a measurement range, the protective sheet 4 stops the contact film 2 being off the charts, thus avoiding damage of the body 1.
Thereby, the separation washer separates from and protects the contact film so as to avoid rust and to expand using field. Preferably, the protective sheet stops the contact film being off the charts, thus decreasing failure rate. The holder and the connector are one-piece formed so as to lower production cost.
While various embodiments in accordance with the present invention have been shown and described, it is clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.