CN218955985U

CN218955985U - High-precision micro-pressure manometer

Info

Publication number: CN218955985U
Application number: CN202320154106.1U
Authority: CN
Inventors: 王来明
Original assignee: Qingdao Weiweika Instrument Co ltd
Current assignee: Qingdao Weiweika Instrument Co ltd
Priority date: 2023-02-08
Filing date: 2023-02-08
Publication date: 2023-05-02
Anticipated expiration: 2033-02-08

Abstract

The utility model discloses a high-precision micro-pressure gauge, which comprises: the dial plate is rotationally connected with a pointer in the middle of the dial plate, a data screen is fixedly connected in the dial plate, a mounting ring is arranged on the dial plate, a mounting groove is formed in the mounting ring, and a meter cover is clamped in the mounting groove; the utility model discloses a table lid, including table lid, table lid middle part, the clearance subassembly is provided with the clearance subassembly, the clearance subassembly includes dwang, connecting strip, clearance piece and clearance strip, the dwang is sealed to be rotated and is connected at the table lid middle part, connecting strip middle part fixed connection is in the dwang upper end, two clearance piece symmetry fixed connection is in the dwang downside, and contacts with the table lid, clearance strip middle part fixed connection is located the inboard one end of table lid at the dwang, clearance piece and clearance strip are supported by transparent material, and the cross-section is triangle-shaped, and the pointed end is close to the one end setting of table lid. The utility model can effectively remove the blocking and ensure the observation of the inside of the pressure gauge.

Description

High-precision micro-pressure manometer

Technical Field

The utility model relates to the technical field of pressure gauges, in particular to a high-precision micro-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. The precise nitrogen pressure gauge is widely applied to nitrogen processing equipment and nitrogen storage, and compared with the existing precise nitrogen pressure gauge with an overpressure alarm function, the safety of the precise nitrogen pressure gauge is reduced.

In order to solve the problems, chinese patent CN107505084A discloses a precise nitrogen pressure gauge which comprises a pressure gauge body, wherein the bottom of the pressure gauge body is communicated with a connecting sleeve, the bottom of the connecting sleeve is communicated with a threaded pipe, and an inner cavity of the pressure gauge body is provided with an information processing unit.

However, since the pressure gauge cover is mostly supported by transparent materials, dust may be adhered to the surface in the using process, and meanwhile mist may be generated in the pressure gauge due to temperature difference, so that data in the pressure gauge cannot be effectively observed, and the measuring accuracy is affected.

Disclosure of Invention

The utility model aims to solve the defects that dust possibly adheres to the surface in the using process and mist possibly occurs in the pressure gauge due to temperature difference in the prior art, so that data in the pressure gauge cannot be effectively observed, and the measuring accuracy is affected.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a high precision micro-pressure gauge, comprising: the dial plate is rotationally connected with a pointer in the middle of the dial plate, a data screen is fixedly connected in the dial plate, a mounting ring is arranged on the dial plate, a mounting groove is formed in the mounting ring, and a meter cover is clamped in the mounting groove;

the utility model discloses a table lid, including table lid, table lid middle part, the clearance subassembly is provided with the clearance subassembly, the clearance subassembly includes dwang, connecting strip, clearance piece and clearance strip, the dwang is sealed to be rotated and is connected at the table lid middle part, connecting strip middle part fixed connection is in the dwang upper end, two clearance piece symmetry fixed connection is in the dwang downside, and contacts with the table lid, clearance strip middle part fixed connection is located the inboard one end of table lid at the dwang, clearance piece and clearance strip are supported by transparent material, and the cross-section is triangle-shaped, and the pointed end is close to the one end setting of table lid.

Preferably, the mounting groove and the inside of the watch cover are provided with sealing components, and the sealing components are used for enhancing the tightness between the mounting grooves.

Preferably, the sealing assembly comprises a sealing cavity and a sealing ring, the sealing ring is sealed and arranged inside the mounting groove, the sealing cavity is a strip-shaped cavity, one end of the sealing cavity is positioned inside the mounting groove, and the other end of the sealing cavity is positioned inside the dial plate.

Preferably, a connecting pipe is fixedly connected below the dial plate, threads are arranged at the lower end of the connecting pipe, and a connecting component is sleeved on the connecting pipe.

Preferably, the connecting assembly comprises a movable ring and a sealing piece, the movable ring is arranged at the upper end of the connecting pipe through the limiting assembly, and the sealing piece is fixedly connected to the lower end of the movable ring.

Preferably, the limiting assembly comprises limiting blocks and limiting grooves, wherein two limiting blocks are symmetrically arranged on two sides of the connecting pipe, the two limiting blocks are fixedly connected inside the movable ring, and the limiting blocks are arranged inside the limiting grooves in a sliding manner.

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

in long-term use, a large amount of water stains and dust are accumulated on the meter cover, so that the interior cannot be effectively observed, the rotating rod is rotated to drive the connecting strip to rotate, dust and water stains on the meter cover can be cleaned by the cleaning sheets on two sides in the rotating process, so that the observation of internal detection values is ensured, deviation of detection data in the observation process is avoided, and meanwhile, when mist is generated, the internal mist can be cleaned through the rotating rod, so that the effective observation is ensured.

Drawings

FIG. 1 is a schematic diagram of a high-precision micro-pressure gauge according to the present utility model;

FIG. 2 is a schematic diagram of the internal structure of a high-precision micro-pressure gauge according to the present utility model;

FIG. 3 is a cross-sectional view of a high-precision micro-pressure gauge according to the present utility model;

fig. 4 is a schematic diagram of a cleaning assembly of a high-precision micro-pressure gauge according to the present utility model.

In the figure: 1 dial plate, 2 pointers, 3 data screen, 4 collar, 5 table lid, 6 clearance subassembly, 61 dwang, 62 connecting strip, 63 clearance piece, 64 clearance strip, 7 seal assembly, 71 seal chamber, 72 sealing ring, 8 connecting pipe, 9 coupling assembling, 91 removal ring, 92 sealing piece, 10 stopper.

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.

Referring to fig. 1-4, a high precision micro-pressure gauge, comprising: the dial 1, the middle part of dial 1 rotates and is connected with pointer 2, the inside fixedly connected with data screen 3 of dial 1, dial 1 is provided with collar 4, the inside mounting groove that is provided with of collar 4, the inside card of mounting groove has table lid 5;

the table lid 5 middle part is provided with clearance subassembly 6, clearance subassembly 6 includes dwang 61, connecting strip 62, clearance piece 63 and clearance strip 64, dwang 61 seals the rotation and connects at table lid 5 middle part, connecting strip 62 middle part fixed connection is in dwang 61 upper end, two clearance pieces 63 symmetry fixed connection is in dwang 61 bottom side, and with table lid 5 contact, clearance strip 64 middle part fixed connection is located the inboard one end of table lid 5 at dwang 61, clearance piece 63 and clearance strip 64 are supported by transparent material, and the cross-section is triangle-shaped, the pointed end is close to the one end setting of table lid 5, in long-term use, there is a large amount of water stain and dust to pile up on table lid 5, cause can't carry out effectual observation to inside, through rotating dwang 61, thereby drive connecting strip 62 and rotate, the clearance piece 63 of both sides can clear up the dust and the water stain on table lid 12 in the rotation process, thereby guarantee to survey the inside detection data and take place the deviation when observing, also can clear away inside fog through rotating dwang 61 when producing the fog, the fog has guaranteed effective observation.

In the utility model, a large amount of water stains and dust are accumulated on the meter cover 5 in the long-term use process, so that the interior cannot be effectively observed, the connecting bar 62 is driven to rotate by rotating the rotating rod 61, and the cleaning sheets 63 on two sides can clean the dust and the water stains on the meter cover 12 in the rotating process, so that the observation of internal detection values is ensured, the deviation of detection data in the observation process is avoided, and meanwhile, when mist is generated, the internal mist can be cleaned through rotating the rotating rod 61, so that the effective observation is ensured.

In the preferred technical scheme in the embodiment, the mounting groove and the watch cover 5 are internally provided with the sealing component 7, and the sealing component 7 is used for enhancing the tightness between the mounting grooves;

the sealing assembly 7 comprises a sealing cavity 71 and a sealing ring 72, the sealing ring 72 is sealed and arranged in the mounting groove, the sealing cavity 71 is a strip-shaped cavity, one end of the sealing cavity is positioned in the mounting groove, the other end of the sealing cavity is positioned in the dial 1, before the sealing assembly is used, the watch cover 5 is sealed and clamped in the mounting groove, and the sealing assembly is connected with the watch cover 5 through the sealing ring 72, so that gas in the sealing cavity 71 is pumped out, and the sealing performance of a connecting part is ensured;

a connecting pipe 8 is fixedly connected below the dial 1, threads are arranged at the lower end of the connecting pipe 8, a connecting component 9 is sleeved on the connecting pipe 8, and when the pressure gauge is used, the pressure gauge is connected with an external device through the connecting pipe 8 and is in sealing connection through the connecting component 9;

the connecting assembly 9 comprises a movable ring 91 and a sealing piece 92, the movable ring 91 is arranged at the upper end of the connecting pipe 8 through a limiting assembly, the sealing piece 92 is fixedly connected to the lower end of the movable ring 91, and the sealing effect is enhanced through the sealing piece 92 due to the fact that air leakage possibly occurs from a connecting position when pressure is detected, so that the air leakage is avoided, the accuracy of a detection result is ensured, and the monitoring accuracy is improved;

the limiting component comprises limiting blocks 10 and limiting grooves, the two limiting blocks 10 are symmetrically arranged on two sides of the connecting pipe 8, the two limiting blocks 10 are fixedly connected inside the movable ring 91, and the limiting sliding is arranged inside the limiting grooves, and the limiting blocks 10 slide inside the limiting grooves, so that the movement and the fixing of the connecting component 9 are guaranteed.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. A high precision micro-pressure gauge, comprising: the dial plate (1), characterized in that the pointer (2) is rotationally connected to the middle part of the dial plate (1), the data screen (3) is fixedly connected to the inside of the dial plate (1), the dial plate (1) is provided with a mounting ring (4), a mounting groove is formed in the mounting ring (4), and a meter cover (5) is clamped in the mounting groove;

the utility model provides a table lid (5) middle part is provided with clearance subassembly (6), clearance subassembly (6) are including dwang (61), connecting strip (62), clearance piece (63) and clearance strip (64), dwang (61) seal rotation connects at table lid (5) middle part, connecting strip (62) middle part fixed connection is in dwang (61) upper end, two clearance piece (63) symmetry fixed connection is in dwang (61) bottom side, and contacts with table lid (5), clearance strip (64) middle part fixed connection is located the inboard one end of table lid (5) at dwang (61), clearance piece (63) and clearance strip (64) are supported by transparent material, and the cross-section is triangle-shaped, and the pointed end is close to the one end setting of table lid (5).

2. The high-precision micro-pressure gauge according to claim 1, wherein a sealing assembly (7) is arranged inside the mounting groove and the gauge cover (5), and the sealing assembly (7) is used for enhancing the tightness between the mounting grooves.

3. The high-precision micro-pressure gauge according to claim 2, wherein the sealing assembly (7) comprises a sealing cavity (71) and a sealing ring (72), the sealing ring (72) is sealed and arranged in the mounting groove, the sealing cavity (71) is a strip-shaped cavity, one end of the sealing cavity is positioned in the mounting groove, and the other end of the sealing cavity is positioned in the dial plate (1).

4. The high-precision micro-pressure gauge according to claim 1, wherein a connecting pipe (8) is fixedly connected below the dial plate (1), threads are arranged at the lower end of the connecting pipe (8), and a connecting component (9) is sleeved on the connecting pipe (8).

5. The high-precision micro-pressure gauge according to claim 4, wherein the connecting assembly (9) comprises a movable ring (91) and a sealing piece (92), the movable ring (91) is installed at the upper end of the connecting pipe (8) through the limiting assembly, and the sealing piece (92) is fixedly connected to the lower end of the movable ring (91).

6. The high-precision micro-pressure gauge according to claim 5, wherein the limiting assembly comprises limiting blocks (10) and limiting grooves, two limiting blocks (10) are symmetrically arranged on two sides of the connecting pipe (8), the two limiting blocks (10) are fixedly connected inside the movable ring (91), and limiting sliding is arranged inside the limiting grooves.