CN219416533U - Fire-fighting pressure gauge - Google Patents

Abstract

The utility model discloses a fire-fighting pressure gauge, which comprises an outer shell, wherein a pressure joint is arranged on the rear end face of the outer shell, a base copper plate and a sealing copper plate are arranged on the inner side of the outer shell, an upper diaphragm and a lower diaphragm are arranged in a gap between the base copper plate and the sealing copper plate, the lower diaphragm is welded on a connecting seat, a movement pressure transmission bead is arranged on the connecting seat, the movement pressure transmission bead is riveted on a transmission shaft, a transmission rod is riveted at one end of the transmission shaft far away from the movement pressure transmission bead, the transmission rod is close to a movement sector tooth plate, the movement sector tooth plate is meshed with a movement center tooth, and the movement center tooth is arranged on a central shaft through a spline. The fire-fighting pressure gauge disclosed by the utility model has the advantages that the negative pressure display of the instrument panel occupies 1/2 of the full range, the pressure of the negative pressure area can be displayed in the area of half of the instrument panel, the accurate positive pressure value can be read, the accurate negative pressure value can be read, and the problems that the larger the pressure value is and the smaller the negative pressure area is in the existing pressure gauge are solved.

Description

Fire-fighting pressure gauge

Technical Field

The utility model relates to the technical field of pressure gauges, in particular to a fire-fighting pressure gauge.

Background

The pressure gauge is a meter which takes an elastic element as a sensitive element and measures and indicates the pressure higher than the ambient pressure, is very common in application, and almost extends to all industrial processes and scientific research fields. Is widely visible in the fields of heating power pipe networks, oil and gas transmission, water and gas supply systems, vehicle maintenance factories, shops and the like. In particular, in the industrial process control and technical measurement process, the mechanical pressure gauge is increasingly widely used due to the characteristics of high mechanical strength, convenient production and the like of the elastic sensitive element of the mechanical pressure gauge.

The current fire-fighting pressure gauge, as shown in fig. 1, has the dial negative pressure displaying 1/6 of the full scale, so that the larger the pressure value in the pressure gauge is, the smaller the negative pressure area is, and the inaccurate reading of the pressure value is caused.

Disclosure of Invention

The utility model aims to provide a fire-fighting pressure gauge, which can display the pressure of a negative pressure area in a half area of an instrument panel, can read an accurate positive pressure value and an accurate negative pressure value, and can solve the problem that the larger the pressure value is, the smaller the negative pressure area is in the pressure gauge in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a fire control manometer, includes the shell body, the rear end face of shell body is provided with pressure joint, the inboard of shell body is provided with base copper and sealed copper, be provided with diaphragm and lower diaphragm in the clearance between base copper and the sealed copper, lower diaphragm welding is on the connecting seat, be provided with core pressure transfer pearl on the connecting seat, core pressure transfer pearl riveting is on the transmission shaft, the transmission shaft is kept away from the one end riveting of core pressure transfer pearl and is had the transfer pole, the transfer pole is close to with the fan-shaped toothed disc of core, the fan-shaped toothed disc of core meshes with the core central tooth, the core central tooth passes through the spline and installs on the center pin, the upper end riveting of center pin has the pointer, the pointer is located the top of panel board, the panel board is located the inboard of shell body.

Preferably, the thickness of the upper membrane is 1mm, and two ends of the upper membrane are connected to the sealing copper plate.

Preferably, the thickness of the lower membrane is 0.2mm, and two ends of the lower membrane are connected to the base copper plate.

Preferably, the middle parts of the upper diaphragm and the lower diaphragm are all wavy.

Preferably, the transmission shaft drives the movement pressure transmission beads to move upwards or downwards by pressure so as to rotate.

Preferably, the pointer drives the transmission rod, the fan-shaped tooth plate of the movement, the center tooth of the movement and the center shaft to rotate through the transmission shaft to indicate the pressure.

Compared with the prior art, the utility model has the following beneficial effects:

when the pressure enters the fire-fighting pressure gauge, the lower diaphragm is pushed to displace, so that the movement pressure transmitting bead is driven to displace, the transmission shaft and the transmission rod are driven to rotate, the fan-shaped tooth plate of the movement, the center tooth of the movement, the center shaft and the pointer are driven to rotate, the pointer accurately indicates the pressure on the instrument panel, the instrument panel negative pressure displays 1/2 of the full range, the pressure of the negative pressure area can be displayed in the area of half of the instrument panel, the accurate positive pressure value can be read, the accurate negative pressure value can be read, and the problems that the larger the pressure value is and the smaller the negative pressure area is in the existing pressure gauge are solved.

Drawings

FIG. 1 is a schematic diagram of a prior art dial negative pressure display full scale 1/6 pressure gauge;

FIG. 2 is a schematic diagram of a fire pressure gauge with dial negative pressure display full scale of 1/2 according to the utility model;

FIG. 3 is a cross-sectional view of the fire manometer of the present utility model;

fig. 4 is a partial cross-sectional view of the fire manometer of the present utility model.

In the figure: 1. an outer housing; 2. a pressure joint; 3. a base copper plate; 4. sealing the copper plate; 5. an upper membrane; 6. a lower membrane; 7. a connecting seat; 8. movement pressure transmitting beads; 9. a transmission shaft; 10. a transfer lever; 11. sector tooth plate of movement; 12. a core center tooth; 13. a central shaft; 14. a pointer; 15. and an instrument panel.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In order to solve the problem that the current fire-fighting pressure gauge in the prior art has a dial negative pressure display of 1/6 of the full scale, which causes that the larger the pressure value in the pressure gauge is, the smaller the negative pressure area is, so that the pressure value is not accurately read, please refer to fig. 2-4, the following technical scheme is provided:

the utility model provides a fire control manometer, includes shell body 1, and the rear end face of shell body 1 is provided with pressure joint 2.

The inboard of shell body 1 is provided with base copper 3 and sealed copper 4, is provided with diaphragm 5 and lower diaphragm 6 in the clearance between base copper 3 and the sealed copper 4, and the thickness of going up diaphragm 5 is 1mm, and the both ends of going up diaphragm 5 are connected on sealed copper 4, and the thickness of lower diaphragm 6 is 0.2mm, and the both ends of lower diaphragm 6 are connected on base copper 3, and the mid portion of going up diaphragm 5 and lower diaphragm 6 all is the wave.

When the positive pressure enters the fire-fighting pressure gauge, the lower diaphragm 6 is pushed to move upwards, when the lower diaphragm 6 moves to the position of the upper diaphragm 5, the upper diaphragm 5 and the lower diaphragm 6 are driven to move together, and as the connecting seat 7 and the lower diaphragm 6 are firmly welded, when the connecting seat 7 moves upwards together with the upper diaphragm 5 and the lower diaphragm 6, the movement pressure transmitting beads 8 are driven to move upwards.

When the negative pressure enters the fire-fighting pressure gauge, the lower diaphragm 6 is displaced downwards, and the negative pressure only acts on the lower diaphragm 6, and the thickness of the upper diaphragm 5 is 5 times that of the lower diaphragm 6, so that the upper diaphragm 5 is not displaced, and when the lower diaphragm 6 is displaced downwards, the movement pressure transmitting beads 8 are driven to displace downwards.

The lower diaphragm 6 is welded on the connecting seat 7, a movement pressure transmission bead 8 is arranged on the connecting seat 7, and the movement pressure transmission bead 8 is riveted on the transmission shaft 9.

One end of the transmission shaft 9, which is far away from the movement pressure transmission bead 8, is riveted with a transmission rod 10, and the transmission rod 10 is close to the fan-shaped tooth piece 11 of the movement.

The transmission shaft 9 drives the movement pressure transmission beads 8 to move upwards or downwards by pressure to rotate.

It should be noted that, the movement pressure transmitting bead 8 generates upward or downward displacement, so that the transmission shaft 9 rotates, thereby driving the transmission rod 10 to rotate, and then driving the movement sector gear 11 to rotate, and the movement sector gear 11 rotates to drive the movement center gear 12, the center shaft 13 and the pointer 14 to rotate, and at this time, the pointer 14 accurately indicates the pressure value on the instrument panel 15.

The sector tooth 11 of the movement is meshed with the central tooth 12 of the movement, and the central tooth 12 of the movement is arranged on the central shaft 13 through a spline.

The upper end of the central shaft 13 is riveted with a pointer 14, the pointer 14 is positioned above the instrument panel 15, and the instrument panel 15 is positioned on the inner side of the outer shell 1.

The pointer 14 drives the transmission rod 10, the core sector gear 11, the core center gear 12 and the central shaft 13 to rotate through the transmission shaft 9 to indicate pressure.

Working principle: when the positive pressure enters the fire-fighting pressure gauge, the lower diaphragm 6 is pushed to move upwards firstly, when the lower diaphragm 6 moves to the position of the upper diaphragm 5, the upper diaphragm 5 and the lower diaphragm 6 are driven to move together, and because the connecting seat 7 and the lower diaphragm 6 are firmly welded, when the connecting seat 7 moves upwards together with the upper diaphragm 5 and the lower diaphragm 6, the movement pressure transmitting beads 8 are driven to move upwards, the transmission shaft 9 is driven to rotate, the transmission rod 10 is driven to rotate, the movement sector tooth piece 11 rotates to drive the movement center tooth 12, the center shaft 13 and the pointer 14 to rotate, and at the moment, the pointer 14 accurately indicates the positive pressure on the instrument panel 15.

When the negative pressure enters the fire-fighting pressure gauge, the lower diaphragm 6 is enabled to downwards displace, because the negative pressure only acts on the lower diaphragm 6, and the thickness of the upper diaphragm 5 is 5 times that of the lower diaphragm 6, the upper diaphragm 5 cannot displace, when the lower diaphragm 6 downwards displaces, the movement pressure transmitting bead 8 is driven to downwards displace, then the transmission shaft 9 is enabled to rotate, the transmission rod 10 is driven to rotate, then the movement sector tooth piece 11 is driven to rotate, the movement sector tooth piece 11 rotates to drive the movement center tooth 12, the central shaft 13 and the pointer 14 to rotate, and at the moment, the pointer 14 accurately indicates the negative pressure on the instrument panel 15.

In summary, according to the fire-fighting pressure gauge disclosed by the utility model, the negative pressure display of the instrument panel 15 occupies 1/2 of the full range, the pressure of the negative pressure area can be displayed in the area of half of the instrument panel 15, the accurate positive pressure value can be read, the accurate negative pressure value can be read, and the problems that the larger the pressure value is and the smaller the negative pressure area is in the existing pressure gauge are solved.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. Fire control manometer, including shell body (1), its characterized in that: the utility model discloses a high-speed motor, including shell body (1), base copper (3) and sealed copper (4) are provided with in the rear end face of shell body (1), be provided with diaphragm (5) and lower diaphragm (6) in the clearance between base copper (3) and sealed copper (4), lower diaphragm (6) welding is on connecting seat (7), be provided with core pressure transfer pearl (8) on connecting seat (7), core pressure transfer pearl (8) riveting is on transmission shaft (9), the one end that core pressure transfer pearl (8) were kept away from to transmission shaft (9) is riveted and is had transfer pole (10), transfer pole (10) are close to with core sector tooth piece (11), sector tooth piece (11) meshes with core center tooth (12), core center tooth (12) are installed on center pin (13) through the spline, the upper end riveting of center pin (13) has pointer (14), pointer (14) are located the top of panel board (15), one end that core pressure transfer pearl (8) was kept away from core pressure transfer pearl (1) is located shell body (1).

2. A fire pressure gauge according to claim 1, wherein: the thickness of the upper membrane (5) is 1mm, and two ends of the upper membrane (5) are connected to the sealing copper plate (4).

3. A fire pressure gauge according to claim 1, wherein: the thickness of the lower diaphragm (6) is 0.2mm, and two ends of the lower diaphragm (6) are connected to the base copper plate (3).

4. A fire pressure gauge according to claim 1, wherein: the middle parts of the upper membrane (5) and the lower membrane (6) are all wavy.

5. A fire pressure gauge according to claim 1, wherein: the transmission shaft (9) drives the movement pressure transmission beads (8) to move upwards or downwards by pressure so as to rotate.

6. A fire pressure gauge according to claim 1, wherein: the pointer (14) drives the transmission rod (10), the core sector gear piece (11), the core center gear (12) and the central shaft (13) to rotate through the transmission shaft (9) to indicate pressure.