Jacking and positioning mechanism based on flow meter

Abstract

The utility model discloses a flowmeter-based jacking positioning mechanism, which relates to the flowmeter detection technical field, and comprises a gas tank, a jacking assembly and a fastening assembly, one side of the gas tank is provided with an air cylinder, the upper side of the air cylinder is provided with an electromagnetic valve, one side of the air cylinder is provided with a piston rod, the top end of the piston rod is fixedly provided with the jacking assembly, and the top end of the piston rod is fixedly provided with the fastening assembly. And the jacking assembly comprises a movable top plate, a rubber layer and a negative pressure suction cup, the movable top plate is of a circular structure, and the rubber layer is bonded to the middle of the inner side face of the movable top plate. According to the jacking positioning mechanism based on the flowmeter, the jacking assembly is conveniently pushed out in a telescopic mode through the air cylinder and the piston rod so as to drive the movable top plate to move, so that a rubber layer on the inner side of the movable top plate can abut against a flange plate of a pipeline used for detection connection of the flowmeter, and then the pipeline is pushed to move and can abut against the flowmeter; and then the flowmeter continues to be pushed to abut against the pipeline at the other end, and jacking and positioning of the flowmeter can be completed.

Description

Technical Field

[0001] The utility model relates to the technical field of flow meter detection, in particular to a tightening and positioning mechanism based on a flow meter. Background Art

[0002] A flow meter is an instrument that indicates the measured flow rate and / or the total amount of fluid in a selected time interval. In simple terms, it is an instrument used to measure the flow rate of fluid in a pipeline or open channel. When a flow meter manufacturer produces a flow meter, it needs to conduct pre-shipment inspection and testing.

[0003] During the flow meter inspection process, both ends of the flow meter are connected to pipes for ventilation inspection. During the pipeline installation process, the flow meter and the pipes at both ends are usually required to be manually tightened and positioned, which is troublesome, time-consuming and labor-intensive to operate.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a tightening and positioning mechanism based on a flow meter is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a tightening and positioning mechanism based on a flow meter to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flow meter-based tightening and positioning mechanism, comprising a gas tank, a tightening assembly and a fastening assembly, a gas cylinder is installed on one side of the gas tank, and a solenoid valve is arranged on the upper side of the gas cylinder, a piston rod is installed on one side of the gas cylinder, and a tightening assembly is fixed to the top end of the piston rod, the tightening assembly comprises a movable top plate, a rubber layer and a negative pressure suction cup, the movable top plate is a circular structure, and a rubber layer is bonded to the middle part of the inner side surface of the movable top plate, a negative pressure suction cup is embedded in the rubber layer, and the negative pressure suction cups are evenly distributed in concentric circles about the center point of the movable top plate, and a fastening assembly is installed on one side of the movable top plate.

[0007] Furthermore, the tightening assembly also includes a micro air pump, the negative pressure suction cups are interconnected through pipelines, and a micro air pump is installed on one side of the negative pressure suction cup.

[0008] Furthermore, the fastening assembly includes an outer ring, a spring and a fastening plate. The outer ring and the movable top plate are an integrated structure, and the inner side of the outer ring is elastically connected to the fastening plate via the spring.

[0009] Furthermore, the fastening plates are in an arc-shaped structure, and there are four groups of fastening plates symmetrically distributed about the center line of the movable top plate.

[0010] Furthermore, calibration rods are fixed on both upper and lower sides of the outer ring, and a support seat is provided below the gas tank and the cylinder.

[0011] Furthermore, the calibration rod is in a "cross" shape, and scale values ​​are arranged on the outer surface of the calibration rod.

[0012] The utility model provides a flow meter-based tightening positioning mechanism, which has the following beneficial effects:

[0013] The utility model is provided with a tightening component, which is convenient for telescoping and pushing out the tightening component through a cylinder and a piston rod to drive the movable top plate to move, so that the rubber layer on the inner side of the movable top plate can collide with the flange of a pipeline used for flow meter detection connection, thereby promoting the movement of the pipeline, so that the pipeline can collide with the flow meter, and then the flow meter continues to advance and collide with the pipeline at the other end to complete the tightening positioning of the flow meter. The provision of the rubber layer can increase the friction force, and at the same time, a plurality of negative pressure suction cups can fit with the flange of the pipeline. The provision of the micro air pump can enable the negative pressure suction cup to generate negative pressure suction and then adsorb and fix the flange of the pipeline, thereby enhancing the tightness during the tightening process.

[0014] The utility model is provided with a fastening assembly and a calibration rod. The fastening plate has an arc-shaped structure and can fit with the outer side surface of the pipeline used for flow meter detection connection. Four groups of symmetrically distributed fastening plates can flexibly position the outer side surface of the pipeline under the action of springs, thereby enhancing the fastening in the process of tightening and positioning. The outer surface of the calibration rod with a "cross" structure is provided with a scale value, which can display the position of the pipeline on one side of the movable top plate. When viewed from the side, the reading distance between the cross-shaped surface scale of the calibration rod and the edge of the pipeline is convenient for understanding whether the pipeline is located in the central position of the circular movable top plate, thereby facilitating the normal use of the tightening assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view structural schematic diagram of a flow meter-based tightening and positioning mechanism of the utility model;

[0016] Figure 2 It is a half-sectioned enlarged structural schematic diagram of a tightening component and a fastening component of a tightening positioning mechanism based on a flow meter of the utility model;

[0017] Figure 3 It is a three-dimensional structural schematic diagram of a tightening component and a fastening component of a tightening positioning mechanism based on a flow meter of the utility model;

[0018] Figure 4 It is a three-dimensional structural schematic diagram of a tightening assembly, a fastening assembly and a calibration rod of a tightening positioning mechanism based on a flow meter according to the utility model;

[0019] Figure 5 It is a schematic diagram of the enlarged structure of a tightening component of a tightening positioning mechanism based on a flow meter of the utility model.

[0020] In the figure: 1. gas tank; 2. cylinder; 3. solenoid valve; 4. piston rod; 5. tightening assembly; 501. movable top plate; 502. rubber layer; 503. negative pressure suction cup; 504. micro air pump; 6. fastening assembly; 601. outer ring; 602. spring; 603. fastening plate; 7. calibration rod. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0022] like Figure 1-Figure 5 As shown, a tightening and positioning mechanism based on a flow meter includes a gas tank 1, a tightening assembly 5 and a fastening assembly 6. A gas cylinder 2 is installed on one side of the gas tank 1, and a solenoid valve 3 is arranged on the upper side of the gas cylinder 2. A piston rod 4 is installed on one side of the gas cylinder 2, and a tightening assembly 5 is fixed to the top of the piston rod 4. The tightening assembly 5 includes a movable top plate 501, a rubber layer 502 and a negative pressure suction cup 503. The movable top plate 501 is a circular structure, and a rubber layer 502 is bonded to the middle part of the inner side surface of the movable top plate 501, and a negative pressure suction cup 503 is embedded in the rubber layer 502, and the negative pressure suction cups 503 are uniformly distributed in concentric circles about the center point of the movable top plate 501. The tightening assembly 5 also includes a micro air pump 504. The negative pressure suction cups 503 are interconnected through pipelines, and a micro air pump 504 is installed on one side of the negative pressure suction cup 503.

[0023] The specific operation is as follows: the cylinder 2 and the piston rod 4 are used to telescope and push out the tightening component 5 to drive the movable top plate 501 to move, so that the rubber layer 502 on the inner side of the movable top plate 501 can collide with the flange of the pipe used for flow meter detection connection, thereby promoting the movement of the pipe, so that the pipe can collide with the flow meter, and then the flow meter continues to advance and collide with the pipe at the other end to complete the tightening positioning of the flow meter. The setting of the rubber layer 502 can increase the friction force, and at the same time, multiple negative pressure suction cups 503 can fit with the flange of the pipe. The setting of the micro air pump 504 can make the negative pressure suction cup 503 generate negative pressure suction and then adsorb and fix the flange of the pipe, thereby enhancing the tightness during the tightening process.

[0024] like Figure 1-Figure 4As shown, a fastening assembly 6 is installed on one side of the movable top plate 501, and the fastening assembly 6 includes an outer ring 601, a spring 602 and a fastening plate 603. The outer ring 601 and the movable top plate 501 are an integrated structure, and the inner side of the outer ring 601 is elastically connected with the fastening plate 603 through the spring 602; the fastening plate 603 is an arc-shaped structure, and the fastening plates 603 are symmetrically distributed in four groups about the center line of the movable top plate 501; calibration rods 7 are fixed on both the upper and lower sides of the outer ring 601, and a support seat is provided below the gas tank 1 and the gas cylinder 2; the calibration rod 7 is a "cross" structure, and the outer surface of the calibration rod 7 is provided with scale values;

[0025] The specific operation is as follows: the arc-shaped structure of the fastening plate 603 can fit with the outer side surface of the pipe used for flow meter detection connection, and the four groups of symmetrically distributed fastening plates 603 can flexibly position the outer side surface of the pipe under the action of the spring 602, thereby enhancing the tightness during the tightening positioning process. The outer surface of the calibration rod 7 with a "cross" structure is provided with a scale value, which can display the position of the pipe on one side of the movable top plate 501. When viewed from the side, the reading distance between the cross-shaped surface scale of the calibration rod 7 and the edge of the pipe is convenient for understanding whether the pipe is located in the central position of the circular movable top plate 501, thereby facilitating the normal use of the tightening assembly 5.

[0026] In summary, if Figure 1-Figure 5 As shown, when the flow meter-based jacking and positioning mechanism is used, the flow meter can first be matched with the pipes on both sides, and then the jacking and positioning are performed. In this process, the corresponding pipe is first set on one side of the jacking assembly 5. At this time, the outer surface of the calibration rod 7 in a "cross" structure is provided with a scale value, which can display the position of the pipe on one side of the movable top plate 501. When viewed from the side, the reading distance between the cross-shaped surface scale of the calibration rod 7 and the edge of the pipe is convenient for understanding whether the pipe is located in the central position of the circular movable top plate 501;

[0027] Then, the movable top plate 501 driven by the cylinder 2 and the piston rod 4 is extended and pushed out to move the top tightening assembly 5, so that the rubber layer 502 inside the movable top plate 501 can collide with the flange of the pipe used for flow meter detection connection. At this time, the arc-shaped structure of the fastening plate 603 can fit the outer side of the pipe used for flow meter detection connection. The four groups of symmetrically distributed fastening plates 603 can flexibly position the outer side of the pipe under the action of the spring 602;

[0028] Then, the cylinder 2 and the piston rod 4 continue to push the movement of the pipeline so that the pipeline can be against the flow meter, and then the flow meter continues to advance and abuts against the pipeline at the other end to complete the tightening and positioning of the flow meter. In this process, the setting of the rubber layer 502 can increase the friction force, and at the same time, multiple negative pressure suction cups 503 can fit together with the flange of the pipeline, and the micro air pump 504 can make the negative pressure suction cup 503 generate negative pressure suction to adsorb and fix the flange of the pipeline, thereby enhancing the tightness during the tightening process, and thus completing the use of the tightening and positioning mechanism based on the flow meter.

[0029] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A flow meter-based tightening and positioning mechanism, comprising a gas tank (1), a tightening assembly (5) and a fastening assembly (6), characterized in that: A cylinder (2) is installed on one side of the gas tank (1), and a solenoid valve (3) is arranged on the upper side of the cylinder (2); a piston rod (4) is installed on one side of the cylinder (2), and a tightening assembly (5) is fixed to the top end of the piston rod (4); the tightening assembly (5) comprises a movable top plate (501), a rubber layer (502) and a negative pressure suction cup (503); the movable top plate (501) is in a circular structure, and a rubber layer (502) is bonded to the middle of the inner side surface of the movable top plate (501); a negative pressure suction cup (503) is embedded in the rubber layer (502), and the negative pressure suction cups (503) are evenly distributed in the shape of concentric circles about the center point of the movable top plate (501); and a fastening assembly (6) is installed on one side of the movable top plate (501).

2. A flow meter-based tightening and positioning mechanism according to claim 1, characterized in that: The tightening assembly (5) further comprises a micro air pump (504); the negative pressure suction cups (503) are interconnected via a pipeline, and a micro air pump (504) is installed on one side of the negative pressure suction cups (503).

3. A flow meter-based tightening and positioning mechanism according to claim 1, characterized in that: The fastening assembly (6) comprises an outer ring (601), a spring (602) and a fastening plate (603); the outer ring (601) and the movable top plate (501) are an integrated structure, and the inner side of the outer ring (601) is elastically connected to the fastening plate (603) via the spring (602).

4. A flow meter-based tightening and positioning mechanism according to claim 3, characterized in that: The fastening plates (603) are in an arc-shaped structure, and there are four groups of fastening plates (603) symmetrically distributed about the center line of the movable top plate (501).

5. A flow meter-based tightening and positioning mechanism according to claim 3, characterized in that: Calibration rods (7) are fixed to both the upper and lower sides of the outer ring (601), and support seats are provided below the gas tank (1) and the gas cylinder (2).

6. A flow meter-based tightening and positioning mechanism according to claim 5, characterized in that: The calibration rod (7) is in a "cross"-shaped structure, and the outer surface of the calibration rod (7) is provided with scale values.

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