Impeller type flowmeter

Abstract

The utility model relates to the technical field of fluid measurement, and discloses an impeller type flow meter which comprises a pipeline, an X-shaped rotating shaft is fixedly installed in the pipeline, a turbine is rotatably installed on the outer side of the X-shaped rotating shaft, a sensing pipe is fixedly installed on the outer side of the pipeline, a flow meter is fixedly installed on the outer side of the sensing pipe, and the flow meter is fixedly installed on the outer side of the pipeline. A cleaning mechanism is arranged on the flow meter and comprises a middle rod. According to the impeller type flow meter, in order to more conveniently clean the interior of the glass cover of the flow meter and conveniently check measurement data, the cleaning mechanism is arranged; through cooperation with a middle rod, a round rod, a left rod, a meter cover, a long rod, an upper rotating shaft, a driving gear, a pull rod, an L-shaped rod, a belt, a lower rotating shaft, a driven gear, a telescopic column, a telescopic rod, an upper rack, a brush rod, a brush head, an inner sliding rail, a driven rack, a transmission gear, an outer sliding rail and a lower rack, the interior of the glass cover is cleaned through opening and closing of the meter cover, and then measurement data can be checked more conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of fluid measurement, in particular to an impeller type flow meter. Background Art

[0002] The impeller flowmeter is a device that uses the principle of fluid angular momentum to measure flow. The impeller's angular velocity of rotation is linearly related to the flow rate. The flow value can be measured by measuring the angular velocity of rotation. Commonly used water meters and gas meters are flow meters that work according to this principle. The water meters currently supplied on the market in my country commonly use impeller flow meters of the type tangent impeller flowmeter, axial flow impeller flowmeter, and mother-and-child type flowmeter.

[0003] If the existing impeller flowmeter is connected to the outside world for a long time during installation, more impurities will enter the impeller flowmeter, resulting in reduced accuracy. Due to the temperature difference, the transparent glass cover on the flow meter will be covered with mist, and the sealed glass cover is difficult to clean. The disassembly process is likely to affect the measurement accuracy and the operation is more complicated, making it difficult to view the measurement data.

[0004] In view of this, we have launched a impeller flow meter. Utility Model Content

[0005] The purpose of the utility model is to provide an impeller flow meter to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: an impeller flowmeter, comprising a pipeline, an X-shaped rotating shaft is fixedly installed inside the pipeline, a turbine is rotatably installed outside the X-shaped rotating shaft, a sensor tube is fixedly installed outside the pipeline, a flow meter is fixedly installed outside the sensor tube, and a cleaning mechanism is provided on the flow meter, and the cleaning mechanism includes:

[0007] A middle rod, the flow meter is fixedly mounted with the middle rod on the outside, a round rod is rotatably mounted with the middle rod on the outside, a left rod is rotatably mounted inside the round rod, a meter cover is fixedly mounted with the outside of the left rod, a long rod is fixedly mounted with the outside of the meter cover, an upper rotating shaft is rotatably mounted inside the flow meter, a driving gear is fixedly mounted with the outside of the upper rotating shaft, a pull rod is fixedly mounted with the outside of the driving gear, and an L-shaped rod is fixedly mounted with the outside of the pull rod;

[0008] A belt is installed for transmission on the outer side of the upper rotating shaft, a lower rotating shaft is installed for rotation inside the flow meter, a lower rotating shaft is installed for transmission inside the end of the belt away from the upper rotating shaft, a driven gear is fixedly installed on the outer side of the lower rotating shaft, a telescopic column is fixedly installed on the outer side of the flow meter, a telescopic rod is slidably installed inside the telescopic column, an upper rack is fixedly installed on the outer side of the telescopic rod, and the upper rack is meshed with the driven gear;

[0009] A brush rod, a brush rod is fixedly installed on the outer side of the upper rack, a brush head is fixedly installed on the outer side of the brush rod, an inner slide rail is provided inside the flow meter, a passive rack is slidably installed inside the inner slide rail, a brush rod is fixedly installed on the outer side of the passive rack, a transmission gear is rotatably installed inside the flow meter, the passive rack is meshed with the transmission gear, an outer slide rail is provided at one end of the flow meter away from the inner slide rail, a lower rack is slidably installed inside the outer slide rail, the lower rack is meshed with the transmission gear, and a brush rod is fixedly installed on the outer side of the transmission gear.

[0010] Preferably, the upper rotating shaft and the lower rotating shaft are coaxial with the centers of the circular cross-sections of the driving gear and the driven gear, respectively, so that the opening and closing of the cover can be better transmitted to the brush rod.

[0011] Preferably, the upper rack, the passive rack and the lower rack are matched in length, and the inner and outer slide rails are mirrored on the front and rear sides of the transmission gear with the vertical midline of the front and rear direction of the transmission gear as the mirror axis.

[0012] Preferably, the brush heads are provided in multiple groups, and the multiple groups of brush heads are linearly arrayed at equal intervals on the outside of the brush rod, so as to better clean the mist generated on the glass cover of the flow meter (since the transparent glass cover on the flow meter is an existing device in the prior art, it will not be described here).

[0013] Preferably, the flow meter is provided with a discharge mechanism, a round hole is opened on the flow meter, a long tube is fixedly installed on the outside of the flow meter, and a collection box is clamped on the outside of the long tube.

[0014] Preferably, two groups of circular holes, long tubes and collecting boxes are provided, and the two groups of circular holes, long tubes and collecting boxes are mirrored on the left and right sides of the flow meter with the vertical center line in the left and right directions of the flow meter as the mirror axis, so that the mist water cleaned up inside the flow meter can be better discharged.

[0015] Compared with the prior art, the utility model provides an impeller flow meter with the following beneficial effects:

[0016] 1. In order to more conveniently clean the inside of the flow meter glass cover and check the measurement data, the impeller flow meter is provided with a cleaning mechanism, which cooperates with the middle rod, round rod, left rod, table cover, long rod, upper rotating shaft, driving gear, pull rod, L-shaped rod, belt, lower rotating shaft, driven gear, telescopic column, telescopic rod, upper rack, brush rod, brush head, inner slide rail, passive rack, transmission gear, outer slide rail and lower rack, so that the inside of the glass cover can be cleaned by opening and closing the table cover, and then the measurement data can be checked more conveniently.

[0017] 2. In order to ensure that the measurement accuracy of the impeller flowmeter is not reduced, a discharge mechanism is provided to clean the mist water in cooperation with a brush rod and a brush head, so that the mist water slides to the round hole and is discharged into the collection box through a long tube. In this way, mist and water droplets generated by factors such as temperature difference will not affect the measurement accuracy of the flowmeter, thereby extending the service life of the flowmeter. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of a left side view of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the structural section of the utility model;

[0020] Figure 3 It is a schematic diagram of a top view of the structure of the utility model;

[0021] Figure 4 It is a schematic side view of the cross-sectional structure of the utility model;

[0022] Figure 5 It is a left side schematic diagram of the cross-sectional structure of the utility model;

[0023] Figure 6 For this utility model Figure 5 A schematic diagram of the enlarged structure of the middle A area;

[0024] Figure 7 It is a schematic top view of part of the structure of the utility model;

[0025] Figure 8 For this utility model Figure 7 Schematic diagram of the enlarged structure of area B in the middle.

[0026] In the figure: 1. pipeline; 2. X-shaped shaft; 3. turbine; 4. sensor tube; 5. flow meter; 6. cleaning mechanism; 61. middle rod; 62. round rod; 63. left rod; 64. meter cover; 65. long rod; 66. upper shaft; 67. driving gear; 68. pull rod; 69. L-shaped rod; 610. belt; 611. lower shaft; 612. driven gear; 613. telescopic column; 614. telescopic rod; 615. upper rack; 616. brush rod; 617. brush head; 618. inner slide rail; 619. passive rack; 620. transmission gear; 621. outer slide rail; 622. lower rack; 7. discharge mechanism; 71. round hole; 72. long tube; 73. collection box. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-8 The utility model provides a technical solution: an impeller flowmeter, including a pipeline 1, an X-shaped rotating shaft 2 is fixedly installed inside the pipeline 1, a turbine 3 is rotatably installed outside the X-shaped rotating shaft 2, a sensor tube 4 is fixedly installed outside the pipeline 1, and a flow meter 5 is fixedly installed outside the sensor tube 4. When it is necessary to measure the fluid flow value, the fluid channel is connected to the pipeline 1, so that the fluid drives the turbine 3 to rotate, so that the sensor tube 4 (since the sensor system is an existing device of the prior art, it will not be described here) transmits data to the flow meter 5, and a cleaning mechanism 6 is provided on the flow meter 5.

[0029] In one embodiment of the utility model, the cleaning mechanism 6 includes a middle rod 61, the middle rod 61 is fixedly installed on the outside of the flow meter 5, a round rod 62 is rotatably installed on the outside of the middle rod 61, a left rod 63 is rotatably installed inside the round rod 62, a meter cover 64 is fixedly installed on the outside of the left rod 63, a long rod 65 is fixedly installed on the outside of the meter cover 64, an upper rotating shaft 66 is rotatably installed inside the flow meter 5, a driving gear 67 is fixedly installed on the outside of the upper rotating shaft 66, a pull rod 68 is fixedly installed on the outside of the driving gear 67, and an L-shaped rod 69 is fixedly installed on the outside of the pull rod 68. When encountering temperature differences, the glass cover generates fog to block the field of vision, and the measurement data cannot be viewed (due to the transparent on the flow meter 5). The glass cover is an existing device of the prior art, so it is not described here in detail), the meter cover 64 is opened, so that the L-shaped rod 69 drives the pull rod 68 to rotate, and the outer side of the upper rotating shaft 66 is driven by a belt 610, and the flow meter 5 is internally rotatably installed with a lower rotating shaft 611, so that the driving gear 67 drives the upper rotating shaft 66 to rotate, and then the belt 610 drives the lower rotating shaft 611 to rotate, and the end of the belt 610 away from the upper rotating shaft 66 is internally driven and installed with a lower rotating shaft 611, and a driven gear 612 is fixedly installed on the outer side of the lower rotating shaft 611, and a telescopic column 613 is fixedly installed on the outer side of the flow meter 5, and a telescopic rod 614 is slidably installed inside the telescopic column 613, and the telescopic rod 614 An upper rack 615 is fixedly installed on the outside, and the upper rack 615 is meshed with the driven gear 612. A brush rod 616 is fixedly installed on the outside of the upper rack 615, and a brush head 617 is fixedly installed on the outside of the brush rod 616. An inner slide rail 618 is provided inside the flow meter 5, and a passive rack 619 is slidably installed inside the inner slide rail 618. A brush rod 616 is fixedly installed on the outside of the passive rack 619. A transmission gear 620 is rotatably installed inside the flow meter 5, and the passive rack 619 is meshed with the transmission gear 620. An outer slide rail 621 is provided at one end of the flow meter 5 away from the inner slide rail 618, and a lower rack 622 is slidably installed inside the outer slide rail 621, and the lower rack 622 is meshed with the transmission gear 620. The driven gear 620 and the transmission gear 620 are fixedly installed with a brush rod 616 on the outside, so that the driven gear 612 drives the upper rack 615 to move, and then the driven gear 612 rotates one circle, and the upper rack 615 is pushed to the tail, so that the brush rod 616 drives the brush head 617 to clean the glass cover, and the brush rod 616 on one side drives the passive rack 619 to move synchronously with the upper rack 615, so that the transmission gear 620 drives the lower rack 622 and the upper rack 615 to move toward each other, and then the brush rod 616 on the other side moves toward the brush rod 616 on one side, so that the inside of the glass cover is cleaned by opening and closing the table cover 64, and then the measurement data can be viewed more conveniently. The upper rotating shaft 66 and the lower rotating shaft 611 are coaxial with the center of the circular cross section of the driving gear 67 and the driven gear 612, respectively. The upper rack 615 , the passive rack 619 and the lower rack 622 are matched in length, and the inner slide rail 618 and the outer slide rail 621 are mirrored on the front and rear sides of the transmission gear 620 with the vertical center line in the front and rear direction of the transmission gear 620 as the mirror axis.There are multiple groups of brush heads 617 , and the multiple groups of brush heads 617 are arranged in a linear array at equal intervals on the outer side of the brush rod 616 .

[0030] In one embodiment of the utility model, a discharge mechanism 7 is provided on the flow meter 5, a circular hole 71 is provided on the flow meter 5, a long tube 72 is fixedly installed on the outside of the flow meter 5, and a collection box 73 is clamped on the outside of the long tube 72. When the water mist inside the flow meter 5 reaches a certain level, the mist water slides to the circular hole 71, is discharged through the long tube 72 and flows into the collection box 73, so that the mist water droplets generated by factors such as temperature difference will not affect the measurement accuracy of the flow meter 5, and the service life of the flow meter is extended. There are two groups of circular holes 71, long tubes 72 and collection boxes 73, and the two groups of circular holes 71, long tubes 72 and collection boxes 73 are set with the vertical center line of the left and right directions of the flow meter 5 as the mirror axis, and the mirror is set on the left and right sides of the flow meter 5.

[0031] Working principle: When it is necessary to measure the fluid flow value, the fluid channel is connected to the pipeline 1, so that the fluid drives the turbine 3 to rotate, so that the sensor tube 4 (since the sensor system is an existing device of the prior art, it will not be described here) transmits the data to the flow meter 5. When the temperature difference and other conditions are encountered, the glass cover is fogged to block the field of vision, and the measurement data cannot be viewed (since the transparent glass cover on the flow meter 5 is an existing device of the prior art, it will not be described here), the meter cover 64 is opened, so that the L-shaped rod 69 drives the pull rod 68 to rotate, so that the driving gear 67 drives the upper rotating shaft 66 to rotate, and then the belt 610 drives the lower rotating shaft 611 to rotate, so that the driven gear 612 drives the upper rack 615 to move, and then the driven gear 612 rotates a certain amount. The upper rack 615 is pushed to the tail end, so that the brush rod 616 drives the brush head 617 to clean the glass cover, and the brush rod 616 on one side drives the passive rack 619 to move synchronously with the upper rack 615, so that the transmission gear 620 drives the lower rack 622 and the upper rack 615 to move toward each other, and then the brush rod 616 on the other side moves toward the brush rod 616 on one side, so as to clean the inside of the glass cover by opening and closing the table cover 64, and then it is more convenient to view the measurement data. When the water mist inside the flow meter 5 reaches a certain level, the water droplets slide to the circular hole 71, and are discharged through the long tube 72 into the collection box 73, so that the mist and water droplets generated by factors such as temperature difference will not affect the measurement accuracy of the flow meter 5, thereby extending the service life of the flow meter.

[0032] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. An impeller flow meter, comprising a pipeline (1), an X-shaped rotating shaft (2) fixedly mounted inside the pipeline (1), a turbine (3) rotatably mounted outside the X-shaped rotating shaft (2), a sensor tube (4) fixedly mounted outside the pipeline (1), and a flow meter (5) fixedly mounted outside the sensor tube (4), characterized in that: The flow meter (5) is provided with a cleaning mechanism (6), and the cleaning mechanism (6) comprises: A middle rod (61), the flow meter (5) is fixedly mounted with the middle rod (61) on the outside, a round rod (62) is rotatably mounted on the outside of the middle rod (61), a left rod (63) is rotatably mounted inside the round rod (62), a meter cover (64) is fixedly mounted on the outside of the left rod (63), a long rod (65) is fixedly mounted on the outside of the meter cover (64), an upper rotating shaft (66) is rotatably mounted inside the flow meter (5), a driving gear (67) is fixedly mounted on the outside of the upper rotating shaft (66), a pull rod (68) is fixedly mounted on the outside of the driving gear (67), and an L-shaped rod (69) is fixedly mounted on the outside of the pull rod (68); A belt (610) is installed on the outer side of the upper rotating shaft (66) for transmission, a lower rotating shaft (611) is installed for rotation inside the flow meter (5), an end of the belt (610) away from the upper rotating shaft (66) is installed with the lower rotating shaft (611) for transmission inside, a driven gear (612) is fixedly installed on the outer side of the lower rotating shaft (611), a telescopic column (613) is fixedly installed on the outer side of the flow meter (5), a telescopic rod (614) is slidably installed inside the telescopic column (613), an upper rack (615) is fixedly installed on the outer side of the telescopic rod (614), and the upper rack (615) is meshed with the driven gear (612); A brush rod (616), a brush rod (616) is fixedly mounted on the outer side of the upper rack (615), a brush head (617) is fixedly mounted on the outer side of the brush rod (616), an inner slide rail (618) is provided inside the flow meter (5), a passive rack (619) is slidably mounted inside the inner slide rail (618), a brush rod (616) is fixedly mounted on the outer side of the passive rack (619), a transmission gear (620) is rotatably mounted inside the flow meter (5), the passive rack (619) is meshed with the transmission gear (620), an outer slide rail (621) is provided inside the flow meter (5) at one end away from the inner slide rail (618), a lower rack (622) is slidably mounted inside the outer slide rail (621), the lower rack (622) is meshed with the transmission gear (620), and a brush rod (616) is fixedly mounted on the outer side of the transmission gear (620).

2. An impeller flow meter according to claim 1, characterized in that: The upper rotating shaft (66) and the lower rotating shaft (611) are coaxial with the centers of the circular cross-sections of the driving gear (67) and the driven gear (612), respectively.

3. The impeller flow meter according to claim 1, characterized in that: The upper rack (615), the passive rack (619) and the lower rack (622) are of matching lengths, and the inner slide rail (618) and the outer slide rail (621) are mirror-arranged on both sides of the transmission gear (620) with the vertical center line in the front-to-back direction of the transmission gear (620) as the mirror axis.

4. The impeller flow meter according to claim 1, characterized in that: The brush heads (617) are provided in multiple groups, and the multiple groups of brush heads (617) are arranged in a linear array at equal intervals on the outside of the brush rod (616).

5. The impeller flow meter according to claim 1, characterized in that: The flow meter (5) is provided with a discharge mechanism (7), the flow meter (5) is provided with a round hole (71), a long tube (72) is fixedly mounted on the outside of the flow meter (5), and a collection box (73) is clamped on the outside of the long tube (72).

6. The impeller flow meter according to claim 5, characterized in that: Two groups of the circular holes (71), the long tubes (72) and the collecting boxes (73) are provided, and the two groups of the circular holes (71), the long tubes (72) and the collecting boxes (73) are mirrored on the left and right sides of the flow meter (5) with the vertical center line in the left and right directions of the flow meter (5) as the mirror axis.

Images