CN-224220132-U - Pressure regulating knob device of pressure measuring instrument and medical eustachian tube pressure measuring instrument

CN224220132UCN 224220132 UCN224220132 UCN 224220132UCN-224220132-U

Abstract

The utility model discloses a pressure regulating knob device of a pressure measuring instrument and a medical eustachian tube pressure measuring instrument, which comprises a pressure regulator and a pressure regulating knob, wherein the pressure regulating knob is provided with a pressure regulating cavity, one end of the pressure regulator stretches into the pressure regulating cavity and is connected with the inner wall of the pressure regulating knob, a buffer positioning mechanism is fixed in the pressure regulating knob and is positioned in the pressure regulating cavity and at least partially extends out of the pressure regulating cavity, a panel is arranged between the pressure regulator and the pressure regulating knob, a positioning part is arranged on the panel, a telescopic positioning piece is arranged on the buffer positioning mechanism, when the positioning piece is matched with the positioning part, the positioning piece is in an extending state, a pressure regulating limiting mechanism for limiting the rotation of the pressure regulating knob is also arranged on the panel, and the pressure regulating limiting mechanism and the positioning part are positioned in the orthographic projection range of the pressure regulating knob on the panel. Is not easy to damage and wear, and has low maintenance and use costs.

Inventors

GUO SHUER
TANG WENBING
LI SILIANG

Assignees

广州曼翔医药有限公司

Dates

Publication Date: 20260512
Application Date: 20250122

Claims (9)

1. Pressure regulating knob device of pressure measuring apparatu, its characterized in that includes: the pressure regulator comprises a pressure regulator and a pressure regulating knob, wherein the pressure regulating knob is provided with a pressure regulating cavity, and one end of the pressure regulator extends into the pressure regulating cavity and is connected with the inner wall of the pressure regulating knob; A buffer positioning mechanism is fixed in the pressure regulating knob, and is positioned in the pressure regulating cavity and at least partially extends out of the pressure regulating cavity; A panel is arranged between the pressure regulator and the pressure regulating knob, a positioning part is arranged on the panel, a telescopic positioning piece is arranged on the buffering positioning mechanism, and the positioning piece is in an extending state when being matched with the positioning part; The panel is also provided with a pressure regulating limiting mechanism for limiting the rotation of the pressure regulating knob; The pressure regulating stop gear with the location portion is located the pressure regulating knob is in the orthographic projection scope on the panel.
2. The pressure regulating knob device of the pressure regulating instrument according to claim 1, wherein a first groove is formed in the panel, the surface of the first groove is smooth and excessive with the surface of the panel, the first groove forms the positioning part, the buffering positioning mechanism comprises a stand column, an elastic piece and a pin shaft, the stand column is fixed on the inner wall of the top of the pressure regulating knob, the elastic piece is installed in the stand column, a first end of the pin shaft is installed on the elastic piece, a second end of the pin shaft extends out of the pressure regulating knob, the second end of the pin shaft is matched with the first groove, and the pin shaft forms the positioning piece.
3. The pressure regulating knob device of the pressure measuring instrument as set forth in claim 2, wherein the surface of the first groove is spherical, and the second end of the pin is provided with a spherical protrusion.
4. The pressure regulating knob device of claim 2, wherein the panel is provided with a first chute, the first groove is arranged in the first chute, the pin shaft slides in the first chute, the panel is further provided with a first stop block, the first stop block is at least partially positioned in the first chute, and the first stop block forms the pressure regulating limiting mechanism.
5. The pressure regulating knob assembly of a pressure measuring instrument of claim 4, wherein between each two of said first grooves, a bottom surface of said first runner is planar.
6. The pressure regulating knob device of pressure measuring instrument of claim 1, wherein the panel is provided with a second chute with annular recess, the outer wall of the second chute is provided with a plurality of second grooves, the second grooves extend along the radial direction of the second chute, the second grooves form the positioning part, the buffer positioning mechanism comprises a cam and a telescopic rod movably mounted at the bottom of the cam, the cam is fixed on the pressure regulating knob, the telescopic rod can extend outwards or retract inwards in the radial direction of the pressure regulating knob, and the telescopic rod forms the positioning piece.
7. The pressure regulating knob device of the pressure measuring instrument according to claim 6, wherein the telescopic rod is curved in an arc shape, a yielding gap is formed between the telescopic rod and the bottom wall of the cam, and/or the surface of the second groove is curved, and an arc-shaped protrusion matched with the second groove is arranged on one side, facing away from the center of the second chute, of the telescopic rod.
8. The pressure regulating knob device of the pressure measuring instrument according to any one of claims 1-7, wherein a pressure gauge is further fixed on the panel, the pressure gauge is connected with the pressure regulator, and the pressure gauge is used for measuring the pressure value regulated by the pressure regulator through the pressure regulating knob in real time.
9. A medical eustachian tube pressure gauge comprising a pressure regulating knob device according to any one of claims 1-8.

Description

Pressure regulating knob device of pressure measuring instrument and medical eustachian tube pressure measuring instrument Technical Field The utility model relates to the technical field of medical instruments, in particular to a pressure regulating knob device of a pressure measuring instrument and a medical eustachian tube pressure measuring instrument. Background The pressure regulating knob device of the medical eustachian tube pressure measuring instrument is used for keeping constant output pressure of gas in a certain pressure range, and when the pressure exceeds a set value, the pressure regulator can automatically regulate the output pressure through the valve, so that the pressure regulating function is realized. The pressure regulating knob device of the pressure measuring instrument is a manual pressure regulating knob device and comprises a pressure regulating knob, a pressure regulating limiting mechanism, a pressure regulator, a buffering positioning mechanism and the like. The buffer positioning mechanism rotates clockwise from the right side of the external pressure regulating and limiting mechanism to the left side of the external pressure regulating and limiting mechanism, and pressure regulation of 0 to 50mbar is achieved. However, the external buffer positioning mechanism may damage equipment or affect the precision of the equipment due to unexpected physical impact, especially impact force generated when reaching a limit point, during transportation or use, and the external buffer positioning mechanism needs to be frequently contacted with a moving part, so that the wear is caused by long-term use, and further the limit effect is affected, and in addition, the mechanical part may fail, so that limit failure is caused, and maintenance or replacement of parts is required, thereby increasing maintenance and use costs. Disclosure of utility model The utility model aims to provide a pressure regulating knob device of a pressure measuring instrument and a medical eustachian tube pressure measuring instrument, which solve the problems that the pressure regulating knob is easy to wear and damage and has high maintenance cost. The technical scheme for achieving the purpose comprises the following steps: The utility model provides a pressure regulating knob device of a pressure measuring instrument, which comprises a pressure regulator and a pressure regulating knob, wherein the pressure regulating knob is provided with a pressure regulating cavity, and one end of the pressure regulator extends into the pressure regulating cavity and is connected with the inner wall of the pressure regulating knob; A buffer positioning mechanism is fixed in the pressure regulating knob, and is positioned in the pressure regulating cavity and at least partially extends out of the pressure regulating cavity; A panel is arranged between the pressure regulator and the pressure regulating knob, a positioning part is arranged on the panel, a telescopic positioning piece is arranged on the buffering positioning mechanism, and the positioning piece is in an extending state when being matched with the positioning part; The panel is also provided with a pressure regulating limiting mechanism for limiting the rotation of the pressure regulating knob; The pressure regulating stop gear with the location portion is located the pressure regulating knob is in the orthographic projection scope on the panel. In one embodiment, the panel is provided with a first groove, the surface of the first groove and the surface of the panel are smooth and excessive, the first groove forms the positioning part, the buffering positioning mechanism comprises a stand column, an elastic piece and a pin shaft, the stand column is fixed on the inner wall of the top of the pressure regulating knob, the elastic piece is installed in the stand column, the first end of the pin shaft is installed on the elastic piece, the second end of the pin shaft extends out of the pressure regulating knob, the second end of the pin shaft is matched with the first groove, and the pin shaft forms the positioning piece. In one embodiment, the surface of the groove is spherical, and the second end of the pin shaft is provided with a spherical protrusion. In one embodiment, the panel is provided with a first chute, the first groove is formed in the first chute, the pin shaft slides in the first chute, the panel is also provided with a first stop block, the first stop block is at least partially located in the first chute, and the first stop block forms the pressure regulating limiting mechanism. In one embodiment, between every two first grooves, the bottom surface of the first chute is a plane. In one embodiment, the panel is provided with an annular second chute, the outer wall of the second chute is provided with a plurality of second grooves, the second grooves extend outwards in the radial direction of the second chute, the second grooves form the positioning parts