Precise stainless steel flowmeter shell

Abstract

The utility model relates to the technical field of flow meters, in particular to a precise stainless steel flow meter shell which comprises a flow meter shell body, connecting pipes and sealing structures, the connecting pipes are arranged on the two sides of the flow meter shell body respectively, and the sealing structures are arranged on the outer walls of the connecting pipes. The sealing structure comprises an outer cylinder, a sliding rod, a spring, an annular plate, a sealing ring and a rubber pad. The outer cylinder moves along the outer wall of the sliding rod in the moving process, the outer cylinder drives the spring to be compressed at the same time, at the moment, elastic force generated by the spring acts on the annular plate, the annular plate has force in the direction of the rubber pad, the force acts on the rubber pad to enable the rubber pad to deform, and the annular plate always acts on the rubber pad to deform. A gap between the outer cylinder and the flow meter shell is filled for sealing, so that the sealing performance of the flow meter shell is improved, and the problem that in the prior art, the sealing between the flow meter shell and the connecting pipe is prone to corrosion, a gap is formed between the flow meter shell and the connecting pipe, and fluid leakage is caused is solved.

Description

Technical Field

[0001] This utility model relates to the field of flow meter technology, specifically to a precision stainless steel flow meter housing. Background Technology

[0002] A flow meter is an instrument that measures the total amount of fluid flowing through a pipe per unit time. Simply put, it's an instrument used to measure the flow rate of fluid in pipes or open channels. Flow meters are further classified into differential pressure flow meters, rotor flow meters, throttling flow meters, slot flow meters, volumetric flow meters, electromagnetic flow meters, ultrasonic flow meters, etc. They can also be classified by the medium: liquid flow meters and gas flow meters.

[0003] For example, in a flowmeter housing structure with authorization announcement number CN220794338U, a pair of extension tubes are provided at both ends of the flowmeter housing body, which slide stably with the flowmeter housing body. An adjustment mechanism is used to drive the pair of extension tubes to move synchronously, thereby adjusting the distance between a pair of connecting flanges. The total length of the flowmeter housing is matched with the required distance by referring to the scale number on the corresponding scale line of the pointer. This can adapt to the distance requirements between different pipelines, eliminating the need to customize flowmeter housings of different lengths, thus reducing costs. However, during use, the sealing ring between the flowmeter housing and the connecting tube is easily corroded by the internal fluid, causing gaps to easily appear between the connecting tube and the flowmeter housing. These gaps cannot be automatically filled, resulting in fluid leakage from the flowmeter housing and reducing the sealing performance of the flowmeter housing. Utility Model Content

[0004] The purpose of this utility model is to solve the problems mentioned in the background art and to provide a precision stainless steel flow meter housing.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] Design a precision stainless steel flow meter housing, including a flow meter housing, connecting pipes and a sealing structure. Connecting pipes are respectively provided on both sides of the flow meter housing, and a sealing structure is provided on the outer wall of the connecting pipes. The sealing structure includes an outer cylinder, a slide rod, a spring, an annular plate, a sealing ring and a rubber gasket.

[0007] One side of the outer cylinder is fixedly connected to the connecting pipe, the inner wall of the outer cylinder is slidably connected to the flow meter housing, the other side of the outer cylinder is slidably connected to multiple sliding rods, the outer wall of each sliding rod is fitted with a spring, the end of each sliding rod is fixedly connected to an annular plate, the two ends of each spring are fixedly connected to the annular plate and the outer cylinder respectively, the outer wall of the annular plate is provided with a sealing ring, the outer wall of the sealing ring is pressed against the outer cylinder, the end of the annular plate is pressed against a rubber pad, and the end of the rubber pad away from the annular plate is pressed against the flow meter housing.

[0008] Preferably, crossbars are provided on both sides of the upper part of the flow meter housing, and the outer wall of the crossbars is machined with graduations, which can precisely adjust the extension length of the connecting pipe;

[0009] The outer wall of the crossbar is slidably connected to the sleeve.

[0010] Preferably, one side of the outer wall of the outer cylinder is fixedly connected to the sleeve, and the other side of the outer wall of the outer cylinder is fixedly connected to the threaded block.

[0011] Preferably, the inner walls of the threaded blocks on both sides are threadedly connected to the double-ended screw, and the two sides of the double-ended screw are respectively rotatably connected to the outer cylinder.

[0012] Preferably, two sets of connecting blocks are provided below the flow meter, and both connecting blocks on both sides are rotatably connected to the double-ended screw.

[0013] The present invention provides a precision stainless steel flowmeter housing with the following advantages: During the movement of the outer cylinder, it moves along the outer wall of the slide rod, and at the same time, the outer cylinder drives the spring to compress. At this time, the elastic force generated by the spring acts on the annular plate, so that the annular plate has a force in the direction of the rubber pad, which in turn acts on the rubber pad and causes the rubber pad to deform. The annular plate always causes the rubber pad to deform, thus filling and sealing the gap between the outer cylinder and the flowmeter housing, thereby improving the sealing performance of the flowmeter housing. This solves the problem that the seal between the flowmeter housing and the connecting pipe in the prior art is easily corroded, causing gaps between the two and leading to fluid leakage. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 for Figure 1 A schematic diagram of the structure of A in the middle;

[0016] Figure 3 This is a schematic diagram of the connection structure of the double-ended screw, threaded block and outer cylinder of this utility model.

[0017] In the diagram: 1. Flowmeter housing; 2. Connecting pipe; 3. Sealing structure; 301. Outer cylinder; 302. Slide rod; 303. Spring; 304. Annular plate; 305. Sealing ring; 306. Rubber pad; 4. Crossbar; 5. Sleeve; 6. Double-ended screw; 7. Threaded block; 8. Connecting block. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] See attached document Figure 1-3A precision stainless steel flow meter housing 1 includes a flow meter housing 1, a connecting pipe 2 and a sealing structure 3. The connecting pipe 2 is provided on both sides of the flow meter housing 1, and the sealing structure 3 is provided on the outer wall of the connecting pipe 2. The sealing structure 3 includes an outer cylinder 301, a slide rod 302, a spring 303, an annular plate 304, a sealing ring 305 and a rubber pad 306.

[0020] One side of the outer cylinder 301 is fixedly connected to the connecting pipe 2. The inner wall of the outer cylinder 301 is slidably connected to the flowmeter housing 1. The other side of the outer cylinder 301 is slidably connected to multiple sliding rods 302. A spring 303 is sleeved on the outer wall of the sliding rod 302. The end of the sliding rod 302 is fixedly connected to the annular plate 304. The two ends of the spring 303 are fixedly connected to the annular plate 304 and the outer cylinder 301, respectively. A sealing ring 305 is provided on the outer wall of the annular plate 304. The sealing ring 305 ensures the sealing between the annular plate 304 and the outer cylinder 301. The outer wall of the sealing ring 305 abuts against the outer cylinder 301. The end of the annular plate 304 is connected to a rubber... The rubber pad 306 is pressed tightly against the annular plate 304, and the end of the rubber pad 306 away from the annular plate 304 is pressed tightly against the flow meter housing 1. During the movement of the outer cylinder 301, it moves along the outer wall of the slide rod 302. At the same time, the outer cylinder 301 drives the spring 302 to compress. At this time, the elastic force generated by the spring 302 acts on the annular plate 304, so that the annular plate 304 has a force in the direction of the rubber pad 306, which acts on the rubber pad 306 and causes the rubber pad 306 to deform. The annular plate 304 always causes the rubber pad 306 to deform, which fills the gap between the outer cylinder 301 and the flow meter housing 1 and seals it, thereby improving the sealing performance of the flow meter housing 1.

[0021] A crossbar 4 is provided on both sides of the upper part of the flow meter housing 1, and the outer wall of the crossbar 4 is machined with a scale, which can precisely adjust the extension length of the connecting pipe 2. The outer wall of the crossbar 4 is slidably connected to the sleeve 5.

[0022] One side of the outer wall of the outer cylinder 301 is fixedly connected to the sleeve 5, and the other side of the outer wall of the outer cylinder 301 is fixedly connected to the threaded block 7. The inner walls of both threaded blocks 7 are threadedly connected to the double-ended screw 6. The two sides of the double-ended screw 6 are rotatably connected to the outer cylinder 301. Two sets of connecting blocks 8 are provided below the flow meter. The two connecting blocks 8 are rotatably connected to the double-ended screw 6. By rotating the double-ended screw 6, the double-ended screw 6 drives the threaded blocks 7 on both sides to move. The threaded blocks 7 on both sides drive the outer cylinder 301 on both sides to move. The outer cylinder 301 drives the sleeve 5 to move along the crossbar 7.

[0023] Specifically, when adjusting the length of the connecting pipes 2 on both sides, the double-ended screw 6 is rotated, which drives the threaded blocks 7 on both sides to move. The threaded blocks 7 on both sides drive the outer cylinders 301 on both sides to move. The outer cylinders 301 drive the sleeves 5 to move along the crossbar 7. The outer cylinders 301 drive the connecting pipes 2 to extend. Depending on the position of the sleeves 5 on the crossbar 4, the extension length of the connecting pipes 2 can be precisely adjusted, thus facilitating connection with the flowmeter housing 1. During the movement of the outer cylinders 301, they move along the outer wall of the slide bar 302. At the same time, the outer cylinders 301 drive the spring 302 to compress. At this time, the elastic force generated by the spring 302 acts on the annular plate 304, so that the annular plate 304 has a force in the direction of the rubber pad 306, which acts on the rubber pad 306 and causes it to deform. The annular plate 304 always causes the rubber pad 306 to deform, thus filling the gap between the outer cylinder 301 and the flowmeter housing 1 and sealing it, thereby improving the sealing performance of the flowmeter housing 1.

[0024] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A precision stainless steel flow meter housing, characterized in that: The flow meter includes a flow meter housing, connecting pipes, and a sealing structure. Connecting pipes are provided on both sides of the flow meter housing, and a sealing structure is provided on the outer wall of the connecting pipes. The sealing structure includes an outer cylinder, a slide rod, a spring, an annular plate, a sealing ring, and a rubber gasket. One side of the outer cylinder is fixedly connected to the connecting pipe, the inner wall of the outer cylinder is slidably connected to the flow meter housing, the other side of the outer cylinder is slidably connected to multiple sliding rods, the outer wall of each sliding rod is fitted with a spring, the end of each sliding rod is fixedly connected to an annular plate, the two ends of each spring are fixedly connected to the annular plate and the outer cylinder respectively, the outer wall of the annular plate is provided with a sealing ring, the outer wall of the sealing ring is pressed against the outer cylinder, the end of the annular plate is pressed against a rubber pad, and the end of the rubber pad away from the annular plate is pressed against the flow meter housing.

2. The precision stainless steel flow meter housing according to claim 1, characterized in that: The flow meter housing has crossbars on both sides above it, and the outer wall of the crossbars is machined with graduations, which can precisely adjust the extension length of the connecting pipe. The outer wall of the crossbar is slidably connected to the sleeve.

3. The precision stainless steel flow meter housing according to claim 1, characterized in that: One side of the outer wall of the outer cylinder is fixedly connected to the sleeve, and the other side of the outer wall of the outer cylinder is fixedly connected to the threaded block.

4. The precision stainless steel flow meter housing according to claim 3, characterized in that: The inner walls of the threaded blocks on both sides are threadedly connected to the double-ended screw, and the two sides of the double-ended screw are rotatably connected to the outer cylinder.

5. The precision stainless steel flow meter housing according to claim 1, characterized in that: Two sets of connecting blocks are provided below the flow meter, and both connecting blocks on both sides are rotatably connected to the double-headed screw.

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