CN219573184U

CN219573184U - Nitrogen flowmeter that leakproofness is good

Info

Publication number: CN219573184U
Application number: CN202321325598.2U
Authority: CN
Inventors: 吴建臣; 吴卓良; 吴兵克; 倪克
Original assignee: Sanzheng Group Co ltd
Current assignee: Sanzheng Group Co ltd
Priority date: 2023-05-29
Filing date: 2023-05-29
Publication date: 2023-08-22
Anticipated expiration: 2033-05-29

Abstract

The utility model relates to the technical field of flow meters, in particular to a nitrogen flow meter with good sealing performance, which comprises a flow meter body, a fixed bottom plate, connecting screws, a sliding plate and a sealing cover plate, wherein the flange end face of the flow meter body is connected with a flange of a pipeline, then a pressing plate is rotated to the upper side of the pipeline, then a pressing screw is screwed down, so that the connecting plate can drive the pressing plate to prop against the outer surface of the pipeline, then the two pressing plates are connected, a fixing nut is screwed down to fix the pressing plate on the pipeline, so that the flow meter body and the connecting pipeline can be further fixed, the sealing effect of the flange end face is improved, the meter display on the flow meter body can be protected through the sealing cover plate and a protective cover, and a supporting spring can drive a guide shaft to move through pressing a clamping block, so that the sliding plate can drive the sealing cover plate to move away from the protective cover, then the sealing cover plate can be rotated, and the meter display on the flow meter body can leak out, and is convenient to observe.

Description

Nitrogen flowmeter that leakproofness is good

Technical Field

The utility model relates to a nitrogen flowmeter with good sealing performance, and belongs to the technical field of flowmeters.

Background

The nitrogen flowmeter is manufactured by adopting the karman vortex street principle, has the advantages of high measurement accuracy, wide measuring range, low power consumption, convenient installation, simple operation, small pressure loss and the like, is a comparatively ideal nitrogen metering instrument, is often connected with a flange on a pipeline through the flange end face above the nitrogen flowmeter, is easy to leak in the long-time use process at the flange end face, and in addition, the instrument display on the nitrogen flowmeter is easy to be affected by rainwater and is easy to age and damage under the long-time illumination effect due to the fact that the instrument display is often installed outdoors in the prior art.

The present utility model has been made in view of this.

Disclosure of Invention

The present utility model has been made to solve the above-mentioned problems, and an object of the present utility model is to provide a nitrogen flow meter with good sealing properties, which can improve the sealing reliability between the flow meter and the flange, and which can also provide a good protection effect for the meter display on the flow meter.

The nitrogen flowmeter with good sealing performance comprises a flowmeter body, wherein a fixed bottom plate is respectively arranged on the flowmeter body, a sliding groove is formed in the fixed bottom plate, a rotary supporting rod is connected to the sliding groove in a sliding clamping mode, a connecting plate is arranged on the rotary supporting rod, a pressing plate is arranged on one side wall of the connecting plate, a connecting screw is arranged on the pressing plate, a fixing nut is connected to the outer surface threads of the connecting screw, and a pressing screw is arranged on the fixed bottom plate.

Further, in order to prevent the pressing plate from damaging the pipeline, a protection pad is arranged on one side wall of the pressing plate.

Further, in order to protect the instrument display on the flowmeter body, a protective cover is arranged on the flowmeter body, a sliding clamping connector is arranged on the side wall of the protective cover, a sliding plate is connected to the sliding clamping connector in a sliding clamping mode, and a sealing cover plate is connected to the sliding plate in a rotating mode.

Further, in order to drive the sliding plate to move, a fixed plate is arranged on the flowmeter body, a guide hole is formed in the fixed plate, a supporting spring is arranged in the guide hole, the fixed plate is movably clamped with a guide shaft through the guide hole, and the guide shaft is connected with the sliding plate.

Further, in order to fix the sliding plate, a clamping base is installed on one side wall of the fixing plate, clamping blocks are movably clamped on the clamping base respectively, a spring piece is arranged on one side wall of each clamping block, and a limiting cover plate is installed on one side wall of each clamping base.

Furthermore, in order to attract the two pressing plates when the flowmeter is not in use, the pressing plates are prevented from shaking back and forth when the flowmeter is conveyed, and a magnet is arranged on one side wall of each pressing plate.

Further, in order to prevent the pressing screw from bending and deforming the top of the rotating support rod, the rotating support rod is made of aluminum alloy.

Furthermore, in order to avoid the screws when the pipeline flange is connected with the flowmeter body, avoidance grooves are respectively formed in the pressing plates.

The utility model has the technical effects and advantages that: the flange end face of the flowmeter body is connected with the flange of the pipeline, then the pressing plate is rotated to the upper side of the pipeline, then the pressing screw is screwed down, the connecting plate can drive the pressing plate to prop against the outer surface of the pipeline, then the two pressing plates are connected, the fixing nut is screwed down to fix the pressing plate on the pipeline, the flowmeter body and the connecting pipeline can be further fixed, the sealing effect of the flange end face is improved, the flowmeter display on the flowmeter body can be protected through the sealing cover plate and the protective cover, the sealing cover plate can be driven to move away from the protective cover through the clamping block, then the sealing cover plate can be rotated, and the instrument display on the flowmeter body can be leaked.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of a sliding groove structure according to the present utility model;

FIG. 3 is a schematic view of a platen structure according to the present utility model;

FIG. 4 is a schematic view of a pad structure according to the present utility model;

FIG. 5 is an enlarged schematic view of the structure of the present utility model at A;

FIG. 6 is an enlarged schematic view of the structure of the present utility model at B;

in the figure: 1. a flowmeter body; 2. a fixed bottom plate; 3. rotating the support rod; 4. a sliding groove; 5. a connecting plate; 6. a pressing plate; 7. a connecting screw; 8. pressing down the screw; 9. a fixing plate; 10. a sliding clamping joint; 11. a sliding plate; 12. sealing the cover plate; 13. a guide shaft; 14. a support spring; 15. the base is clamped; 16. a clamping block; 17. a spring piece; 18. a limit cover plate; 19. a protective pad; 20. a magnet; 21. a protective cover; 22. an avoidance groove; 23. and a guide hole.

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.

Referring to fig. 1-6, a nitrogen flowmeter with good tightness comprises a flowmeter body 1, wherein a fixed bottom plate 2 is respectively installed on the flowmeter body 1, a sliding groove 4 is formed in the fixed bottom plate 2, a rotary supporting rod 3 is connected to the sliding groove 4 in a sliding clamping manner, a connecting plate 5 is installed on the rotary supporting rod 3, a pressing plate 6 is installed on one side wall of the connecting plate 5, a connecting screw 7 is arranged on the pressing plate 6, a fixing screw is connected to the outer surface screw thread of the connecting screw 7, a pressing screw 8 is arranged on the fixed bottom plate 2, after the flange end face of the flowmeter body 1 is connected with a flange of a pipeline, the pressing plate 6 is rotated to the upper side of the pipeline, the pressing screw 8 is screwed, the rotary supporting rod 3 slides in the sliding groove 4, so that the connecting plate 5 can drive the pressing plate 6 to abut against the outer surface of the pipeline, then the two pressing plates 6 are connected with the connecting screw 7 through fixing nuts, and the fixing screws 6 are screwed down on the pipeline, and then the pressing screw 8 is screwed down, so that the flowmeter body 1 and the connecting pipeline are further fixed with the flange, and the flange end face of the pipeline are beneficial to improving the sealing effect between the flange and the flange.

As a technical optimization scheme of the utility model, a protection pad 19 is arranged on one side wall of the pressing plate 6, and the protection pad 19 is beneficial to preventing the pressing plate 6 from damaging a pipeline.

As a technical optimization scheme of the utility model, a protecting cover 21 is arranged on a flowmeter body 1, a sliding clamping joint 10 is arranged on the side wall of the protecting cover 21, a sliding plate 11 is arranged on the sliding clamping joint 10 in a sliding clamping mode, a sealing cover plate 12 is rotatably connected to the sliding plate 11, a fixing plate 9 is arranged on the flowmeter body 1, a guide hole 23 is formed in the fixing plate 9, a supporting spring 14 is arranged in the guide hole 23, the fixing plate 9 is movably clamped with a guide shaft 13 through the guide hole 23, the guide shaft 13 is connected with the sliding plate 11, a clamping base 15 is arranged on one side wall of the fixing plate 9, clamping blocks 16 are respectively movably clamped on the clamping base 15, a spring piece 17 is arranged on one side wall of the clamping blocks 16, a limit cover plate 18 is arranged on one side wall of the clamping base 15, a meter display on the flowmeter body 1 can be protected through the protecting cover 21 and the sealing cover plate 12, when the indicating number of the meter display is required to be observed, the supporting spring 14 can drive the guide shaft 13 to move through pressing the clamping blocks 16, the sliding cover plate 11 can drive the sealing cover plate 12 to move, the sealing cover plate 12 can be conveniently and rotatably clamped with the sealing cover plate 12 on the sealing cover plate 12 to be rotated, and then the sealing cover plate 12 can be conveniently and rotatably clamped with the sealing cover plate 12 on the sealing cover plate 12 when the sealing cover plate 12 is required to be rotatably arranged on the sealing cover plate 12, and the sealing cover plate 12 is convenient to be rotated, and the sealing cover plate 12 to be connected with the sealing cover plate 12 to be arranged on the sealing cover plate 12 to be a sealing cover plate 12.

As a technical optimization scheme of the utility model, a magnet 20 is arranged on one side wall of the pressure plate 6, and through the magnet 20, when the flowmeter is not used, the two pressure plates 6 can be attracted to each other, so that the pressure plate 6 of the flowmeter can be prevented from shaking back and forth when being conveyed.

As a technical optimization scheme of the utility model, the rotary support rod 3 is made of aluminum alloy, and the strength of the rotary support rod 3 is improved by the aluminum alloy, so that the rotary support rod 3 is prevented from being bent by the pressing screw 8.

As a technical optimization scheme of the utility model, the pressure plate 6 is respectively provided with the avoidance grooves 22, and screws when the pipeline flange is connected with the flowmeter body 1 can be avoided through the avoidance grooves 22.

When the flowmeter is used, the flange end face of the flowmeter body 1 is connected with the flange of a pipeline, then the pressing plate 6 is rotated to the upper side of the pipeline, then the pressing screw 8 is screwed, the pressing screw 8 is driven to drive the rotary supporting rod 3 to slide in the sliding groove 4, the connecting plate 5 can drive the pressing plate 6 to prop against the outer surface of the pipeline, then the two pressing plates 6 are connected through the fixing nut and the connecting screw 7, the fixing nut is screwed to fix the pressing plate 6 on the pipeline, then the pressing screw 8 is screwed, so that the flowmeter body 1 and the connecting pipeline can be further fixed, the sealing effect of the flange end face is improved, when the indication of an instrument display on the flowmeter body 1 is required to be observed, the supporting spring 14 can drive the guide shaft 13 to move by pressing the clamping block 16, so that the sliding plate 11 can drive the sealing cover plate 12 to move away from the protecting cover 21, then the sealing cover 12 can be rotated, after the instrument display on the flowmeter body 1 is completely observed, the sealing cover 12 is rotated to be concentric with the protecting cover 21, and then the sealing cover 12 is pushed to be contacted with the fixing plate 9, the clamping block 17 can drive the instrument display on the flowmeter body 1 to pop-up the sealing cover plate 11, and the protecting cover plate 11 can be beneficial to the instrument display on the protecting cover plate 1.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. The utility model provides a nitrogen gas flowmeter that leakproofness is good, includes flowmeter body (1), its characterized in that: install PMKD (2) on flowmeter body (1) respectively, set up sliding tray (4) on PMKD (2), sliding joint has rotation bracing piece (3) on sliding tray (4), install connecting plate (5) on rotating bracing piece (3), install clamp plate (6) on the lateral wall of connecting plate (5), be provided with connecting screw (7) on clamp plate (6), be connected with fixation nut on the surface screw thread of connecting screw (7), be provided with on PMKD (2) and push down screw (8).

2. The nitrogen flow meter with good sealing as claimed in claim 1, wherein: a protection pad (19) is arranged on one side wall of the pressing plate (6).

3. The nitrogen flow meter with good sealing as claimed in claim 1, wherein: install protection casing (21) on flowmeter body (1), install slip joint (10) on the lateral wall of protection casing (21), slip joint (10) go up slip joint has sliding plate (11), rotate on sliding plate (11) and be connected with sealed apron (12).

4. A nitrogen flow meter with good sealing as claimed in claim 3, wherein: install fixed plate (9) on flowmeter body (1), guide hole (23) have been seted up on fixed plate (9), inside supporting spring (14) that are provided with of guide hole (23), fixed plate (9) are passed through guide hole (23) activity joint has guiding axle (13), just guiding axle (13) with sliding plate (11) are connected.

5. The nitrogen flow meter with good sealing as claimed in claim 4, wherein: a clamping base (15) is arranged on one side wall of the fixed plate (9), clamping blocks (16) are movably clamped on the clamping base (15) respectively, a spring piece (17) is arranged on one side wall of each clamping block (16), and a limiting cover plate (18) is arranged on one side wall of the clamping base (15).

6. The nitrogen flow meter with good sealing as claimed in claim 1, wherein: a magnet (20) is arranged on one side wall of the pressing plate (6).

7. The nitrogen flow meter with good sealing as claimed in claim 1, wherein: the rotary supporting rod (3) is made of aluminum alloy.

8. The nitrogen flow meter with good sealing as claimed in claim 1, wherein: and avoidance grooves (22) are respectively formed in the pressing plates (6).