Novel commutator of flat rectangular goose head nozzle

Abstract

The utility model discloses a novel commutator with a flat rectangular gooseneck boom nozzle, which relates to the technical field of commutators, and comprises a shell, two water outlets, a nozzle and a water diversion barrel, the nozzle comprises a rectangular gooseneck boom section and a contraction rectification section, the section of the rectangular gooseneck boom section is a rectangular pipeline, the contraction rectification section is arranged obliquely, and two ends of the contraction rectification section are respectively circular and rectangular. The rectangular end of the contraction rectification section is connected with one end of the rectangular gooseneck boom section; a middle partition plate is fixedly arranged in the center of the interior of the water distribution barrel, two water flow channels are formed in the positions, located on the two sides of the middle partition plate, in the water distribution barrel, a plurality of inclined plates are fixedly arranged in the two water flow channels, and water flow can flow in an S-shaped route through the inclined plates. A flow field is changed into a flat rectangle from an original tubular compression rectification mode, when a verification medium flows to the highest point of the gooseneck boom, the flow field can be changed into a water curtain shape, and water flow can flow in an S-shaped route through the multiple inclined plates.

Description

Technical Field

[0001] This utility model relates to the field of commutator technology, specifically a novel commutator with a flat rectangular gooseneck nozzle. Background Technology

[0002] In recent years, with the increasing perfection of verification procedures, the commutator mechanism, which is a crucial component in liquid flow verification systems and has almost the same accuracy as the traceability level (mass method verification), is used to change the weighing container on the electronic scale during the verification cycle of the verification device. This allows for the measurement of the inflow of the weighing container during each verification cycle to verify the flow meter being verified. Before being put into use in the verification system, the commutator mechanism must undergo verification and certification. The verification and certification process has been expanded from the original primary method of the stroke difference method to a comprehensive method combining the primary method of the stroke difference method and the standard flow meter flow verification method. These two verification methods directly reflect the symmetrical repeatability accuracy of the commutator's commutation stroke and the symmetrical repeatability accuracy of the flow during the commutation process. This also increases the accuracy requirements for the commutator and adds difficulty to the commutator's structure and manufacturing process. Based on this, a new type of commutator structure has been developed to meet the verification requirements of the new regulations. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a novel commutator with a flat rectangular gooseneck nozzle, thereby solving the problems mentioned in the background section.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a novel commutator with a flat rectangular goose-head nozzle, comprising a housing, two water outlets provided at the bottom of the housing, a nozzle fixedly mounted on the top of the housing by a fixing bracket, a water distribution cylinder slidably disposed inside the housing, the nozzle being able to extend into the water distribution cylinder, and a cylinder capable of driving the water distribution cylinder to reciprocate being fixedly mounted on the outside of the housing.

[0005] The nozzle includes a rectangular gooseneck section and a converging and rectifying section. The rectangular gooseneck section has a rectangular cross-section, and the converging and rectifying section is inclined. The two ends of the converging and rectifying section are circular and rectangular, respectively, and the rectangular end of the converging and rectifying section is connected to one end of the rectangular gooseneck section.

[0006] A central partition is fixedly installed inside the water distribution cylinder. Two water flow channels are provided on both sides of the central partition inside the water distribution cylinder. The two water flow channels can be connected to two water outlets. Multiple inclined plates are fixedly installed in each of the two water flow channels, which can make the water flow in an S-shaped path.

[0007] Preferably, the water flow channel below the partition plate has a funnel-shaped structure.

[0008] Preferably, multiple partition plates are fixedly disposed within the two water flow channels and below the middle partition plate, and the multiple partition plates are evenly distributed within the water flow channels.

[0009] Preferably, a pair of linear slide rails are fixedly provided on both sides of the upper part of the housing, and the water distribution cylinder is fixedly installed on the slider of the pair of linear slide rails.

[0010] This utility model provides a novel commutator with a flat rectangular gooseneck nozzle, which has the following advantages: After the test medium passes through the rectangular gooseneck section and the contraction and rectification section, the flow field changes from the original tubular compression and rectification to a flat rectangular shape, making the medium flow field more stable and smooth. When the test medium passes through the contraction and rectification section, it enters in an upward-sloping water inlet state. When the test medium flows to the highest point of the gooseneck, the flow field can become a water curtain shape, making it easier for the commutator to achieve commutation and water distribution accuracy. This is superior to the traditional commutator structure with a mesh nozzle mesh outlet state due to the horizontal water inlet turbulence. The mesh-like water flow deviation introduces uncertainty errors to the commutator's switching and water distribution accuracy; furthermore, the gooseneck shape provides better flow accuracy during commutator start-up and shutdown than the traditional mesh-like nozzle tubular flow accuracy; multiple inclined plates allow the water flow to follow an S-shaped path, reducing the water velocity and impact on the water distribution cylinder, thus reducing noise; multiple partition plates divide the water curtain discharged from the nozzles into multiple streams and collect them together, reducing the impact of the water flow on the inclined sides of the bucket-shaped structure, further reducing noise. Attached Figure Description

[0011] Figure 1 This is the front view of the present invention;

[0012] Figure 2 for Figure 1 Sectional view of AA;

[0013] Figure 3 A 3D view of the nozzle;

[0014] Figure 4 This is a three-dimensional diagram of the water distribution cylinder.

[0015] In the diagram: 1. Shell; 2. Outlet; 3. Fixing frame; 4. Nozzle; 5. Water distribution cylinder; 6. Cylinder; 7. Linear slide rail; 4-1. Rectangular gooseneck section; 4-2. Converging and rectifying section; 5-1. Middle partition plate; 5-2. Water flow channel; 5-3. Inclined plate; 5-4. Divider plate. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0017] Please see Figure 1-4 This utility model provides a technical solution: a new type of commutator with a flat rectangular goose head nozzle 4, including a housing 1, two water outlets 2 are provided at the bottom of the housing 1, a nozzle 4 is fixedly provided on the top of the housing 1 by a fixing frame 3, a water distribution cylinder 5 is slidably provided inside the housing 1, the nozzle 4 can extend into the water distribution cylinder 5, and a cylinder 6 that can drive the water distribution cylinder 5 to move back and forth is fixedly installed on the outside of the housing 1.

[0018] Nozzle 4 includes a rectangular gooseneck section 4-1 and a contraction and rectification section 4-2. The rectangular gooseneck section 4-1 has a rectangular pipe cross-section. The contraction and rectification section 4-2 is inclined, with a circular end and a rectangular end. The rectangular end of the contraction and rectification section 4-2 is connected to one end of the rectangular gooseneck section 4-1. After the test medium passes through these two sections, the flow field changes from the original tubular compression and rectification to a flat rectangle, making the medium flow field more stable and smooth. When the test medium passes through the contraction and rectification section 4-2, it enters at an upward angle. When the test medium flows to the highest point of the gooseneck, the flow field can become a water curtain, which makes it easier for the commutator to achieve commutation and water distribution accuracy. This is better than the accuracy of the commutator commutator with mesh nozzles in the traditional structure, where the mesh outlet water state is affected by the horizontal water inflow turbulence, causing the mesh outlet water to deflect and introduce uncertainty error into the commutator commutation and water distribution. Furthermore, the shape of the gooseneck makes the outflow accuracy better than the tubular outflow accuracy of the mesh nozzles in the traditional structure commutator when the commutator starts and stops.

[0019] A central partition 5-1 is fixedly installed at the center of the water distribution cylinder 5. Two water flow channels 5-2 are arranged on both sides of the central partition 5-1 inside the water distribution cylinder 5. The two water flow channels 5-2 can be connected to two water outlets 2. Multiple inclined plates 5-3 are fixedly installed in each of the two water flow channels 5-2. The multiple inclined plates 5-3 can make the water flow in an S-shaped path. The multiple inclined plates 5-3 can reduce the water flow velocity, reduce the impact of the water flow on the water distribution cylinder 5, and thus reduce noise.

[0020] As an embodiment of this utility model, the water flow channel 5-2 below the middle partition 5-1 has a bucket-shaped structure, which realizes the concentration of dispersed water flow.

[0021] As an embodiment of this utility model, multiple partition plates 5-4 are fixedly installed in the two water flow channels 5-2 and below the middle partition plate 5-1. The multiple partition plates 5-4 are evenly distributed in the water flow channels 5-2. Through the multiple partition plates 5-4, the water curtain discharged from the nozzle 4 can be divided into multiple water flows and collected together, reducing the impact of the water flow on the inclined sides of the bucket-shaped structure and further reducing noise.

[0022] As an embodiment of this utility model, a pair of linear slide rails 7 are fixedly arranged on both sides of the upper part of the housing 1. The water distribution cylinder 5 is fixedly installed on the slider of the pair of linear slide rails 7. The linear slide rails 7 make the commutator change from a traditional rotary mechanism to a linear motion mechanism. Linear motion is easier to obtain intuitive measurement and detection results than rotation.

[0023] During use, the test medium is discharged into the water distribution cylinder through the nozzle and flows to the outlet through the water flow channel located below the nozzle. By pulling the water distribution cylinder with a cylinder, the water flow channel on the other side can be moved to below the nozzle, and the test medium is discharged through the other outlet, thus realizing the reversing function.

[0024] Those skilled in the art will connect the cylinder and the solenoid directional valve in this case, and should select a suitable controller according to the actual situation to meet the control requirements. The specific connection and control sequence should refer to the working principle described below. The detailed connection method is a well-known technology in the art. The following mainly introduces the working principle and process, and will not provide a detailed description of the pneumatic control part.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel commutator with a flat rectangular gooseneck nozzle (4), characterized in that, Includes a housing (1), the bottom of the housing (1) is provided with two water outlets (2), a nozzle (4) is fixedly provided on the top of the housing (1) by a fixing frame (3), a water distribution cylinder (5) is slidably provided inside the housing (1), the nozzle (4) can extend into the water distribution cylinder (5), and a cylinder (6) that can drive the water distribution cylinder (5) to reciprocate is fixedly installed on the outside of the housing (1); The nozzle (4) includes a rectangular gooseneck section (4-1) and a converging and rectifying section (4-2). The rectangular gooseneck section (4-1) has a rectangular pipe cross-section. The converging and rectifying section (4-2) is inclined. The two ends of the converging and rectifying section (4-2) are circular and rectangular, respectively. The rectangular end of the converging and rectifying section (4-2) is connected to one end of the rectangular gooseneck section (4-1). A central partition (5-1) is fixedly installed at the center of the water distribution cylinder (5). Two water flow channels (5-2) are provided on both sides of the central partition (5-1) inside the water distribution cylinder (5). The two water flow channels (5-2) can be connected to two water outlets (2). Multiple inclined plates (5-3) are fixedly installed in each of the two water flow channels (5-2). The multiple inclined plates (5-3) can make the water flow in an S-shaped path.

2. The novel commutator with a flat rectangular gooseneck nozzle (4) according to claim 1, characterized in that, The water flow channel (5-2) below the central partition (5-1) has a bucket-shaped structure.

3. A novel commutator with a flat rectangular gooseneck nozzle (4) according to claim 2, characterized in that, Multiple partition plates (5-4) are fixedly installed in the two water flow channels (5-2) and below the middle partition plate (5-1), and the multiple partition plates (5-4) are evenly distributed in the water flow channels (5-2).

4. A novel commutator with a flat rectangular gooseneck nozzle (4) according to claim 1, characterized in that, A pair of linear slide rails (7) are fixedly installed on both sides of the upper part of the housing (1), and the water distribution cylinder (5) is fixedly installed on the slider of the pair of linear slide rails (7).

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