Metallic scraper flowmeter with dustproof structure

By designing a dustproof component on the metal scraper flow meter and utilizing the detachable connection and sealing structure of the rear and front covers, the problem of complex and costly existing dustproof structures is solved, achieving low-cost dustproof and waterproof effects and extending the service life of the dial.

CN224552479UActive Publication Date: 2026-07-24DANDONG JIHAI FLOW INSTR & METER
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DANDONG JIHAI FLOW INSTR & METER
Filing Date
2026-06-18
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing metal scraper flow meters have complex and costly dustproof structures, making it difficult to effectively prevent dust and rainwater from corroding the dial.

Method used

The watch features a dustproof assembly, including a rear cover and a front cover. The front cover is removable and can be installed by an interference fit between a spring sheet and a socket. Combined with a sealing groove and a sealing strip, it forms a fully enclosed structure to prevent dust and rainwater from contacting the dial.

Benefits of technology

It achieves simple and low-cost dust and water resistance, extends the lifespan of the dial, and facilitates disassembly and maintenance.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224552479U_ABST
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Abstract

The utility model discloses a metal scraper flowmeter with dustproof structure relates to petrochemical system technical field, and the utility model discloses a flowmeter main part and dial, and the dial is fixedly arranged at the upper portion of flowmeter main part through the rod piece, is equipped with dustproof subassembly on the dial, dustproof subassembly includes back cover and front cover, and the front cover detachable mounting is arranged at one side of back cover, and the back cover and front cover are covered at the outside of dial, and the transparent plate is fixedly arranged on the front cover, in the utility model, through setting dustproof subassembly, from back cover, front cover, sealing groove, sealing strip, plug rod, elastic sheet and the effect of jack, can install front cover at the front side of back cover, and cover dial, carry out dustproof waterproof to dial, avoid dust and rainwater and dial contact, when disassembling, make plug rod and elastic sheet and jack separate, can make front cover and back cover separate from separating from plug rod and elastic sheet and jack, thereby improve the service life of dial, and the dustproof subassembly simple structure, low cost.
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Description

Technical Field

[0001] This utility model relates to the field of petrochemical system technology, specifically to a metal scraper flow meter with a dustproof structure. Background Technology

[0002] Authorized announcement number CN208606833U provides a dustproof structure for a metal scraper flow meter, including a metal scraper flow meter body, a dial, a dust cover, a support rod, a hollow cylinder, a threaded rod, and a servo motor. The dial is fixed to the upper end of the metal scraper flow meter body and installed inside the dust cover. A support rod is welded to the right end of the dust cover, and a hollow cylinder is fixed to the right end of the support rod. The hollow cylinder is threaded onto the threaded rod, and a servo motor is welded to the lower end of the threaded rod. The servo motor is fixed to the right end of the metal scraper flow meter body. This design utilizes the dust cover to protect the dial from dust. This utility model has a reasonable structure, is easy to operate, and has dustproof and protective functions.

[0003] In this patent, the dust cover is moved up and down by the cooperation of a servo motor and a threaded rod, so that the dust cover is located outside the dial of the metal scraper flow meter or separated from the dial. Although the dust cover can be protected from the dial, the dust cover structure is complex and the cost is high. Utility Model Content

[0004] In order to solve the above problems, the purpose of this utility model is to provide a metal scraper flow meter with a dustproof structure.

[0005] To solve the above technical problems, the present invention adopts the following technical solution: a metal scraper flow meter with a dustproof structure, comprising a flow meter body and a dial, the dial being fixedly mounted on the upper part of the flow meter body by a rod, and the dial being provided with a dustproof component;

[0006] The dustproof assembly includes a rear cover and a front cover. The front cover is detachably installed on one side of the rear cover. The rear cover and the front cover cover cover the outside of the dial. A transparent plate is fixedly installed on the front cover.

[0007] Several fixing seats are fixedly provided on one side edge of the rear cover plate, and several insertion holes are provided on the fixing seats. Several ear plates are fixedly provided on one side edge of the front cover plate, and several insertion rods are fixedly provided on one side of the ear plates. Several elastic plates arranged in a ring array are fixedly provided on the outer wall of the insertion rods. The elastic plates are inclined, and the insertion rods are interference-fitted with the inner wall of the insertion holes through the elastic plates.

[0008] Preferably, a first protective pad is fixedly provided on the inner wall of the rear cover plate, a second protective pad is fixedly provided on the inner wall of the front cover plate, and the outer wall of the dial is in contact with the inner walls of the first and second protective pads.

[0009] Preferably, a plurality of support plates are fixedly provided on the lower end face of the rear cover plate, and the lower end face of the front cover plate and the upper surface of the support plates are in movable contact.

[0010] Preferably, a sealing groove is provided on one side of the rear cover plate, and a sealing strip is fixedly provided on one side of the front cover plate, wherein the sealing strip and the inner wall of the sealing groove are in movable contact.

[0011] Preferably, the lower end faces of the rear cover and the front cover are provided with through grooves, and the inner wall of the through groove is fixedly provided with a sealing gasket. The rod of the dial passes through the through groove and makes movable contact with the inner wall of the sealing gasket.

[0012] Preferably, a toggle plate is fixedly provided on one side of the ear plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] In this invention, a dustproof component is provided. Through the functions of the rear cover plate, front cover plate, sealing groove, sealing strip, insert rod, elastic sheet, and insertion hole, the front cover plate can be installed on the front side of the rear cover plate and cover the dial, thus protecting the dial from dust and water and preventing dust and rain from contacting the dial. When disassembling, the front cover plate can be separated from the rear cover plate by detaching the insert rod and elastic sheet from the insertion hole, thereby improving the service life of the dial. This dustproof component has a simple structure and low cost. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a metal scraper flowmeter with a dustproof structure according to the present invention.

[0017] Figure 2 This is a schematic diagram of the separation structure of the front cover plate and rear cover plate from the dial of this utility model.

[0018] Figure 3 This is a schematic diagram of the structure of the rear cover plate of this utility model.

[0019] Figure 4 This is a schematic diagram of the structure of the front cover plate of this utility model.

[0020] Figure 5 This is a partial cross-sectional view of the separation of the insertion rod and the insertion hole, and the fixing base of this utility model.

[0021] Figure 6 This is a top view of the front cover and rear cover of this utility model.

[0022] In the diagram: 1. Flow meter body; 2. Dial; 3. Dustproof assembly; 31. Rear cover; 32. Front cover; 33. Sealing groove; 34. Sealing strip; 35. Protective pad No. 1; 36. Protective pad No. 2; 37. Through groove; 38. Sealing gasket; 39. Support plate; 4. Transparent plate; 41. Fixing base; 42. Insertion hole; 43. Ear plate; 44. Insert rod; 45. Elastic sheet; 46. Actuating plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example: Figure 1-6 As shown, this utility model provides a metal scraper flow meter with a dustproof structure, including a flow meter body 1 and a dial 2. The dial 2 is fixedly installed on the upper part of the flow meter body 1 by a rod. The dial 2 is provided with a dustproof component 3. By setting the dustproof component 3, the dustproof component 3 can protect the dial 2 from dust and water, prevent dust and rainwater from contacting the dial 2, and improve the service life of the dial 2.

[0025] The dustproof assembly 3 includes a rear cover plate 31 and a front cover plate 32. The front cover plate 32 is detachably installed on one side of the rear cover plate 31. Several support plates 39 are fixedly provided on the lower end face of the rear cover plate 31. The lower end face of the front cover plate 32 is in movable contact with the upper surface of the support plates 39. By providing the support plates 39, when the front cover plate 32 is installed on the front side of the rear cover plate 31, the support plates 39 can support the front cover plate 32, improving the stability of the front cover plate 32. The rear cover plate 31 and the front cover plate 32 cover the outside of the dial 2. After the front cover plate 32 is installed on the front side of the rear cover plate 31, the front cover plate 32 and the rear cover plate 31 cover the dial 2, which can protect the dial 2 from dust and water. A first protective pad 35 is fixedly provided on the inner wall of the rear cover plate 31, and a second protective pad 36 is fixedly provided on the inner wall of the front cover plate 32. The outer wall of the dial 2 is in movable contact with the inner walls of the first protective pad 35 and the second protective pad 36. Protective pads 35 and 36 prevent wear on the outer casing of the dial 2. A transparent plate 4 is fixedly installed on the front cover 32, allowing direct observation of the display information of the dial 2 from the outside. A sealing groove 33 is provided on one side of the rear cover 31, and a sealing strip 34 is fixedly installed on one side of the front cover 32. The sealing strip 34 and the inner wall of the sealing groove 33 are in contact. By providing the sealing groove 33 and the sealing strip 34, the sealing between the front cover 32 and the rear cover 31 can be improved, preventing dust and rainwater from entering. A through groove 37 is provided on the lower end face of both the rear cover 31 and the front cover 32. A sealing gasket 38 is fixedly installed on the inner wall of the through groove 37. The rod of the dial 2 passes through the through groove 37 and is in contact with the inner wall of the sealing gasket 38. By providing the sealing gasket 38, the position of the rod of the dial 2 can be sealed. Together with the sealing strip 34, an overall seal is formed, improving the sealing effect.

[0026] Several fixing seats 41 are fixedly installed on one edge of the rear cover plate 31, and several insertion holes 42 are provided on the fixing seats 41. Several ear plates 43 are fixedly installed on one edge of the front cover plate 32, and several insertion rods 44 are fixedly installed on one side of the ear plates 43. Several elastic plates 45 arranged in a ring array are fixedly installed on the outer wall of the insertion rods 44. The elastic plates 45 are inclined. The insertion rods 44 are interference-fitted with the inner wall of the insertion holes 42 through the elastic plates 45. During the installation of the front cover plate 32, when the insertion rods 44 are inserted into the insertion holes 42, the inclined elastic plates 45 contract. The ear plates 43 are fixed to one side of the fixing seats 41 through the interference fit, so that the front cover plate 32 is fixed to the front side of the rear cover plate 31. A toggle plate 46 is fixedly installed on one side of the ear plates 43. By setting the toggle plate 46, during the disassembly of the front cover plate 32, the insertion rods 44 and elastic plates 45 can be disengaged from the insertion holes 42 by pulling the toggle plate 46 away from the rear cover plate 31.

[0027] Working principle: When dust and water protection is required for dial 2, the operator first puts the back cover plate 31 on the back of dial 2, then aligns the front cover plate 32 horizontally with the back cover plate 31, and pushes the front cover plate 32 horizontally. The sealing strip 34 of the front cover plate 32 enters the sealing groove 33 horizontally. At the same time, multiple inserts 44 are horizontally inserted into the corresponding insert holes 42. The elastic sheet 45 enters and deforms simultaneously. The ear plate 43 is fixed to the front side of the fixing seat 41 by interference fit. At this time, the front cover plate 32 is fixed to the front side of the back cover plate 31, which protects dial 2 from dust and water, and prevents dust and rainwater from contacting dial 2, thereby improving the service life of dial 2. At the same time, this dustproof component 3 has a simple structure and low cost.

[0028] When the dial 2 needs to be inspected and maintained, the operator pulls the lever 46 away from the rear cover 31. Under the action of horizontal pulling force, the insert rod 44 and the elastic piece 45 disengage from the insertion hole 42, which can separate the front cover 32 from the rear cover 31. Then, the rear cover 31 can be removed to expose the dial 2 to the outside for the operator to inspect and maintain.

[0029] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0030] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A metal scraper flowmeter with a dustproof structure, comprising a flowmeter body (1) and a dial (2), wherein the dial (2) is fixedly mounted on the upper part of the flowmeter body (1) by means of a rod, characterized in that: The dial (2) is provided with a dustproof component (3); The dustproof component (3) includes a rear cover plate (31) and a front cover plate (32). The front cover plate (32) is detachably installed on one side of the rear cover plate (31). The rear cover plate (31) and the front cover plate (32) cover the outside of the dial (2). A transparent plate (4) is fixedly installed on the front cover plate (32). A number of fixing seats (41) are fixedly provided on one side edge of the rear cover plate (31), and a number of insertion holes (42) are provided on the fixing seats (41). A number of ear plates (43) are fixedly provided on one side edge of the front cover plate (32), and a number of insertion rods (44) are fixedly provided on one side of the ear plates (43). A number of elastic plates (45) arranged in a ring array are fixedly provided on the outer wall of the insertion rods (44). The elastic plates (45) are inclined, and the insertion rods (44) are interference-fitted with the inner wall of the insertion holes (42) through the elastic plates (45).

2. The metal scraper flow meter with a dustproof structure as described in claim 1, characterized in that, The inner wall of the rear cover plate (31) is fixedly provided with a first protective pad (35), and the inner wall of the front cover plate (32) is fixedly provided with a second protective pad (36). The outer wall of the dial (2) is in contact with the inner walls of the first protective pad (35) and the second protective pad (36).

3. A metal scraper flow meter with a dustproof structure as described in claim 1, characterized in that, The lower end face of the rear cover plate (31) is fixedly provided with several support plates (39), and the lower end face of the front cover plate (32) and the upper surface of the support plates (39) are in contact.

4. A metal scraper flow meter with a dustproof structure as described in claim 1, characterized in that, A sealing groove (33) is provided on one side of the rear cover plate (31), and a sealing strip (34) is fixedly provided on one side of the front cover plate (32). The sealing strip (34) and the inner wall of the sealing groove (33) are in contact.

5. A metal scraper flow meter with a dustproof structure as described in claim 1, characterized in that, The lower end face of the rear cover plate (31) and the front cover plate (32) are provided with through grooves (37), and the inner wall of the through groove (37) is fixedly provided with a sealing gasket (38). The rod of the dial (2) passes through the through groove (37) and makes movable contact with the inner wall of the sealing gasket (38).

6. A metal scraper flow meter with a dustproof structure as described in claim 1, characterized in that, A toggle plate (46) is fixedly provided on one side of the ear plate (43).