CN218646497U

CN218646497U - Diaphragm capsule pressure stepping device

Info

Publication number: CN218646497U
Application number: CN202222694397.1U
Authority: CN
Inventors: 王凯强; 李述龙; 黄龙祥
Original assignee: Changzhou Foland Electrical Appliance Co Ltd
Current assignee: Changzhou Foland Electrical Appliance Co Ltd
Priority date: 2022-10-13
Filing date: 2022-10-13
Publication date: 2023-03-17
Anticipated expiration: 2032-10-13

Abstract

The utility model discloses a diaphragm capsule pressure stepping device, which comprises an outer shell, the diaphragm capsule main part, the diaphragm, closing plate and dial plate, the diaphragm capsule main part is installed at the bottom up end of shell, the closing plate is installed in the bottom and diaphragm capsule main part sliding seal of diaphragm capsule main part and is connected, diaphragm fixed mounting is terminal surface under the top of diaphragm capsule main part, the top of diaphragm capsule main part is provided with the deformation measuring aperture, the top up end of diaphragm capsule main part is provided with stepping board, stepping board's side end face is provided with lead screw and guide bar, the bottom of dial plate is provided with the pivot, the cover is equipped with torsion spring in the pivot. The utility model discloses a be provided with sliding connection's stepping board at the up end of bellows main part, make stepping board cover the first crest or the second crest of diaphragm to change the radius of can deforming of diaphragm, make its deformation volume change under the same pressure, thereby reach the function of adjusting the manometer gear, promoted the application scope of equipment.

Description

Diaphragm capsule pressure stepping device

Technical Field

The utility model relates to a manometer technical field specifically is a diaphragm capsule pressure stepping device.

Background

The bellows pressure gauge adopts a bellows as a sensitive element for measuring tiny pressure. The method is used for measuring the micro-pressure and the negative pressure which have corrosion action on the copper alloy and do not have explosion hazard gas, and is widely applied to boiler ventilation, gas pipelines, combustion devices and other similar equipment. The working principle of the instrument is that based on the corrugated bellows, under the pressure action of a measured medium, the free end of the corrugated bellows generates corresponding elastic deformation, pressure is directly transmitted to the connecting rod by the diaphragm and then is directly displayed on the diaphragm pressure gauge, but the measuring range of the bellows pressure gauge in the prior art is fixed, so that grading can not be carried out, and equipment can not realize different pressure environments.

For example a stainless steel diaphragm capsule pressure gauge disclosed in grant bulletin number CN208704941U, including the panel, the casing, the bellows and support, the support sets up in the casing, and the bellows sets up in the support, and the panel sets up on the casing, the support includes first backup pad, second backup pad, main part, first limiting plate, second limiting plate, fretwork portion and baffle, first backup pad and the vertical setting of second backup pad are at the main part upper surface, and first, second backup pad set up relatively, first limiting plate and second limiting plate set up at the main part side and extend to the main part below, and first, second limiting plate set up relatively, the baffle sets up in the main part middle part, and the baffle is located between first backup pad and the second backup pad, and the baffle setting is in fretwork portion both sides.

Above-mentioned a stainless steel diaphragm capsule pressure gauge, this manometer also has the problem of unable adjustment measuring range, leads to equipment unable little pressure variation or equipment unable great pressure that detects, influences the measuring range of manometer, consequently needs a diaphragm capsule pressure stepping device to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a diaphragm capsule pressure stepping device to the problem of the unable adjustment measuring range of diaphragm capsule pressure gauge among the solution prior art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a diaphragm capsule pressure stepping device, includes shell, diaphragm capsule main part, diaphragm, closing plate and dial plate, the bottom up end at the shell is installed to the diaphragm capsule main part, the bottom and the diaphragm capsule main part sliding seal connection at the diaphragm capsule main part are installed to the closing plate, diaphragm fixed mounting is terminal surface under the top of diaphragm capsule main part, the top of diaphragm capsule main part is provided with the deformation measuring aperture, the top up end of diaphragm capsule main part is provided with stepping board, stepping board's side end face is provided with lead screw and guide bar, the bottom of dial plate is provided with the pivot, the cover is equipped with torsion spring in the pivot.

Preferably, the diaphragm is made of beryllium copper, so that the diaphragm has good elasticity.

Preferably, the diaphragm is provided with creases which are of a corrugated structure, and a first peak and a second peak are formed between the creases, so that the area of the diaphragm is increased, and the central stroke of the diaphragm is increased.

Preferably, the wavelength of the first peak is greater than that of the second peak, so that the edge of the first peak has a larger deformable range and is preferentially deformed.

Preferably, the stepping plate is connected with the guide rod in a sliding mode, the stepping plate is connected with the screw rod in a threaded mode, and the stepping position is adjusted by rotating the screw rod.

Preferably, the number of the baffles is two, the screw rod is provided with mirror image external threads, and the two groups of baffles are close to or far away from each other by rotating the screw rod.

Preferably, the front end of the baffle plate is provided with an arc-shaped pressing plate, the bottom of the arc-shaped pressing plate is flush with the upper end face of the diaphragm, and the first wave peak or the second wave peak is pressed through the pressing plate, so that the deformable radius of the diaphragm is changed, and the pressure required by unit deformation of the diaphragm is changed.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a be provided with sliding connection's stepping board at the up end of bellows main part, make stepping board cover the first crest or the second crest of diaphragm to change the radius of can deforming of diaphragm, make its deformation volume change under the same pressure, thereby reach the function of adjusting the manometer gear, promoted the application scope of equipment.

2. The utility model discloses a lead screw and stepping board cooperation, the convenience is adjusted the position of stepping board, has promoted the convenience of equipment.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 isbase:Sub>A cross-sectional view taken along linebase:Sub>A-base:Sub>A of fig. 2 in accordance with the present invention;

fig. 4 is an enlarged view of the position B in fig. 3.

In the figure: the diaphragm capsule comprises a shell 1, a diaphragm capsule body 2, a deformation measuring hole 21, a diaphragm 3, a crease 31, a first crest 32, a second crest 33, a sealing plate 4, a dial 5, a rotating shaft 51, a torsion spring 52, a baffle 6, a guide rod 61, a lead screw 62 and an arc-shaped pressing plate 63.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1 to 4, a diaphragm capsule pressure grading device shown in the figures includes a housing 1, a diaphragm capsule main body 2, a diaphragm 3, a sealing plate 4 and a dial 5, the diaphragm capsule main body 2 is mounted on the upper end surface of the bottom of the housing 1, the sealing plate 4 is mounted on the bottom of the diaphragm capsule main body 2 and is connected with the diaphragm capsule main body 2 in a sliding and sealing manner, the diaphragm 3 is fixedly mounted on the lower end surface of the top of the diaphragm capsule main body 2, a deformation measuring hole 21 is formed in the top of the diaphragm capsule main body 2, a grading plate 6 is arranged on the upper end surface of the top of the diaphragm capsule main body 2, a lead screw 62 and a guide rod 61 are arranged on the side end surface of the grading plate 6, a bottom sliding roller of the dial 5 is also connected with a rotating shaft 51 in a rotating manner, and a torsion spring 52 fixed to the dial 5 is welded on the rotating shaft 51.

The diaphragm 3 is made of beryllium copper, so that the diaphragm has good elasticity.

The membrane 3 is provided with creases 31, the creases 31 are in a corrugated structure, and first peaks 32 and second peaks 33 are formed between the creases 31, so that the area of the membrane 3 is increased, and the central stroke of the membrane 3 is increased.

The wavelength of the first peak 32 is greater than that of the second peak 33, so that the edge of the first peak has a larger deformable range and is preferentially deformed.

The stepping plate 6 is connected with the guide rod 61 in a sliding mode, the stepping plate 6 is connected with the screw rod 62 in a threaded mode, the screw rod 62 is connected with the shell 1 in a rotating mode, and the stepping position is adjusted through rotating the screw rod 62.

The number of the baffles 6 is two, the screw rod 62 is provided with mirror image external threads, and the two groups of the baffles 6 are close to or far away from each other by rotating the screw rod 62.

The front end of the baffle 6 is provided with an arc-shaped pressing plate 63, the bottom of the arc-shaped pressing plate 63 is flush with the upper end face of the diaphragm 3, and the first wave peak 32 or the second wave peak 33 is pressed through the pressing plate, so that the deformable radius of the diaphragm 3 is changed, and the pressure required by unit deformation of the diaphragm is changed.

When the device is used: when outside atmospheric pressure extrudees closing plate 4, the medium in closing plate 4 extrusion diaphragm capsule main part 2, conduct pressure to diaphragm 3, diaphragm 3 receives pressure to take place deformation, thereby extrude pivot 51 upwards, pivot 51 upwards slides the in-process, take place rotatoryly under torsion spring 52's effect, thereby it is rotatory to drive dial plate 5 pointer, when needs change measuring range, only need to rotate the appointed number of turns of lead screw 62, make stepping plate 6 slide until arc clamp plate 63 and first crest 32 or second crest 33 parallel and level along lead screw 62, make the radius of deformation of diaphragm 3 reduce, thereby make diaphragm 3 center can be with pivot 51 jack-up same height that makes progress under bigger pressure, the realization is to the stepping of manometer.

It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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 invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A diaphragm capsule pressure stepper device, comprising:

shell (1), diaphragm capsule main part (2), diaphragm (3), closing plate (4) and dial plate (5), the bottom up end at shell (1) is installed in diaphragm capsule main part (2), the bottom and diaphragm capsule main part (2) sliding seal connection at diaphragm capsule main part (2) are installed in closing plate (4), diaphragm (3) fixed mounting is terminal surface under the top of diaphragm capsule main part (2), the top of diaphragm capsule main part (2) is provided with deformation measuring hole (21), the top up end of diaphragm capsule main part (2) is provided with shelves board (6), the side end face of shelves board (6) is provided with lead screw (62) and guide bar (61), the bottom of dial plate (5) is provided with pivot (51), the cover is equipped with torsion spring (52) on pivot (51).

2. The diaphragm capsule pressure stepper of claim 1, wherein: the diaphragm (3) is made of beryllium copper.

3. The diaphragm capsule pressure stepper of claim 1, wherein: be provided with crease (31) on diaphragm (3), crease (31) are the ripple column structure, are formed with first crest (32) and second crest (33) between crease (31).

4. The diaphragm capsule pressure stepper of claim 3, wherein: the first peak (32) has a wavelength greater than the wavelength of the second peak (33).

5. The diaphragm capsule pressure stepper of claim 1, wherein: the stepping plate (6) is connected with the guide rod (61) in a sliding mode, and the stepping plate (6) is connected with the screw rod (62) in a threaded mode.

6. The diaphragm capsule pressure stepper of claim 5, wherein: the number of the baffle plates (6) is two, and mirror image external threads are arranged on the screw rod (62).

7. The diaphragm capsule pressure stepper of claim 1, wherein: an arc-shaped pressing plate (63) is arranged at the front end of the baffle dividing plate (6), and the bottom of the arc-shaped pressing plate (63) is flush with the upper end face of the diaphragm (3).