A rapid calibration device for oil flow meter

Abstract

The present invention discloses a rapid calibration device for an oil flow meter, comprising a calibration platform, a slide groove is provided on the top of the calibration platform, a squaring mechanism is provided in the middle of the top of the calibration platform, docking mechanisms are provided on both sides of the top of the calibration platform, a transmission mechanism is provided on the bottom wall of the slide groove, the squaring mechanism comprises a mounting seat fixedly connected to the top of the calibration platform, a placement groove is provided on the top of the mounting seat, a support plate is slidably connected to the placement groove, the top of the support plate abuts against the oil flow meter, an arc groove is provided on the top of the mounting seat, and an arc tooth plate meshing with a gear is slidably connected to the arc tooth plate. The present invention can squaring the oil flow meter to maintain a vertical state only by placing the oil flow meter on the top of the support plate and pressing it downward. At the same time, through the connection of the transmission mechanism, the two oil pipes are driven to dock with the ports of the oil flow meter. No manual intervention is required in the squaring process, and no manual tightening of screws is required in the docking process, which is convenient and quick.

Description

Technical Field

[0001] The invention relates to the technical field of oil flow meter calibration, and in particular to a rapid calibration device for an oil 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. An oil flow meter is a common liquid flow meter, an instrument used to measure the flow rate of liquids such as oil. Flow meters are widely used in industrial production and other fields. They are closely related to the national economy, national defense construction, and scientific research. Measurement plays an important role in ensuring product quality, improving production efficiency, and promoting the development of science and technology.

[0003] After the oil flow meter is processed, it needs to be tested and calibrated. Generally, during the calibration, the oil flow meter needs to be installed manually to connect the two ends of the oil flow meter to the pipeline of the circulation pump. Since the two ends of the oil flow meter are flange structures, multiple fastening screws need to be tightened. The operation process is relatively cumbersome and takes a lot of time. In addition, during installation, the oil flow meter needs to be kept in a vertical state, which requires high installation technology from the operator. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that the oil flow meter is inconvenient to fix and difficult to keep vertical, and to propose a rapid calibration device for the oil flow meter.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A rapid calibration device for an oil flow meter comprises a calibration platform, a slide groove is provided on the top of the calibration platform, a straightening mechanism is provided in the middle of the top of the calibration platform, docking mechanisms are provided on both sides of the top of the calibration platform, and a transmission mechanism is provided on the bottom wall of the slide groove.

[0007] The alignment mechanism includes a mounting seat fixedly connected to the top of the calibration table, a placement slot is provided on the top of the mounting seat, a support plate is slidably connected to the placement slot, the top of the support plate abuts the oil flow meter, the upper half of the side surface of the inner wall of the placement slot is arc-shaped, the lower half of the side surface of the inner wall of the placement slot is a vertical surface, the lower half of the side surface of the inner wall of the placement slot is coupled to the front and rear side surfaces of the support plate, a telescopic rod is fixedly connected to the bottom of the support plate, the other end of the telescopic rod is fixedly connected to the bottom wall of the slide slot, a mounting slot is provided on the lower part of the side surface of the inner wall of the placement slot, and the inner wall of the mounting slot is rotated The gear is dynamically connected, the front and rear sides of the support plate are provided with teeth meshing with the gear, the top of the mounting seat is provided with an arc groove, the arc groove is slidably connected with an arc tooth plate meshing with the gear, the top of the arc tooth plate is provided with an avoidance groove, the side of the arc tooth plate is provided with a limited hole, the top of the mounting seat is provided with a slot at the midpoint of the top of the vertical arc groove, the side of the inner wall of the slot is provided with a limited slot, the slot is slidably connected with an insertion strip, the left and right sides of the insertion strip are fixedly connected with limit blocks coupled with the limit slot, and the insertion strip and the limit hole are used in conjunction with each other;

[0008] The docking mechanism includes fixed plates fixedly installed on both sides of the top of the calibration table, the top of the fixed plate is fixedly connected to a guide ring, the guide ring is slidably connected to an oil pipe, one end of the oil pipe close to the mounting seat is fixedly connected to a connecting rod, the bottom of the connecting rod is fixedly connected to a sliding block, the sliding block is slidably connected to a slide groove, and one end of the oil pipe close to the mounting seat is fixedly connected to a rubber pad.

[0009] Preferably, the transmission mechanism includes a push-pull rod obliquely rotatably connected to the lower side of the support plate, the other end of the push-pull rod is rotatably connected to a first threaded tube, the first threaded tube is meshed with a screw rod, the screw rod is meshed with a second threaded tube, the left and right sides of the screw rod have opposite thread directions, and the first threaded tube and the second threaded tube have opposite thread directions.

[0010] Preferably, the upper half of the inner wall side of the placement groove is coupled to the front and rear side surfaces of the oil flow meter, and the top of the support plate is arc-shaped and coupled to the bottom of the oil flow meter.

[0011] Preferably, the bottom of the sliding block is fixedly connected to the second threaded tube.

[0012] Preferably, the height of the oil pipe is initially lower than the height of the support plate.

[0013] Preferably, the avoidance groove is coupled to a connection point of the oil flow meter, and a depth of the avoidance groove is less than half of a pipe diameter of the connection point of the oil flow meter.

[0014] Preferably, the lead of the screw rod at the point where it engages with the first threaded tube is smaller than the lead of the screw rod at the point where it engages with the second threaded tube.

[0015] Preferably, two guide rings are fixedly connected to both sides of the top of each fixing plate.

[0016] Compared with the prior art, the present invention provides a rapid calibration device for an oil flow meter, which has the following beneficial effects:

[0017] 1. The present invention drives the second threaded tube to move along the screw toward the first threaded tube by moving the support plate downward, and drives the two oil pipes to move toward the two ports of the oil flow meter for docking, and then cooperates with the buffering effect of the rubber pad to prevent the oil flow meter and the oil pipe from colliding and being damaged, thereby improving the reliability of the device. At the same time, the rubber pad is squeezed from both sides by the oil flow meter and the oil pipe, so that the rubber pad is deformed and closely attached to the oil flow meter and the oil pipe, so that the oil flow meter and the oil pipe are tightly connected at the docking point;

[0018] 2. The present invention drives the gear to rotate by moving the support plate downward, driving the arc-shaped toothed plate to slide upward along the arc-shaped groove, and the bottom walls of the two avoidance grooves at the top of the arc-shaped toothed plate abut against the oil flow meter, pushing the oil flow meter from both sides to keep the oil flow meter in a vertical state, thereby automatically calibrating the oil flow meter to a vertical state and fixing it;

[0019] The present invention can align the oil flow meter and keep it in a vertical state only by placing the oil flow meter on the top of the support plate and pressing it downward. At the same time, through the connection of the transmission mechanism, the two oil pipes are driven to connect with the ports of the oil flow meter. No manual intervention is required in the alignment process, and no manual tightening of screws is required in the docking process, which is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the top view of the main body of a rapid calibration device for an oil flow meter proposed by the present invention;

[0021] Figure 2 A rapid calibration device for an oil flow meter proposed by the present invention Figure 1 Schematic diagram of the cross section at AA in the middle;

[0022] Figure 3 A schematic top view of a mounting base of an oil flow meter rapid calibration device proposed by the present invention;

[0023] Figure 4 A rapid calibration device for an oil flow meter proposed by the present invention Figure 3 Schematic diagram of the cross section at BB;

[0024] Figure 5 A rapid calibration device for an oil flow meter proposed by the present invention Figure 1 Enlarged schematic diagram at point A in the middle.

[0025] In the figure: 1. calibration table; 2. slide groove; 3. fixing plate; 4. guide ring; 5. oil pipe; 6. connecting rod; 7. slider; 8. mounting seat; 9. placement groove; 10. support plate; 11. oil flow meter; 12. telescopic rod; 13. push-pull rod; 14. first threaded tube; 15. screw rod; 16. second threaded tube; 17. mounting groove; 18. gear; 19. arc-shaped tooth plate; 20. arc-shaped groove; 21. avoidance groove; 22. limit hole; 23. slot; 24. limit groove; 25. insert; 26. limit block; 27. rubber pad. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] Embodiment 1

[0029] Reference Figure 1-5 A rapid calibration device for an oil flow meter comprises a calibration platform 1, a slide groove 2 is provided on the top of the calibration platform 1, a straightening mechanism is provided in the middle of the top of the calibration platform 1, docking mechanisms are provided on both sides of the top of the calibration platform 1, and a transmission mechanism is provided on the bottom wall of the slide groove 2.

[0030] The straightening mechanism is used to straighten the device, and the transmission mechanism is used in conjunction with the transmission function to drive the docking mechanism to operate simultaneously for docking.

[0031] The alignment mechanism includes a mounting seat 8 fixedly connected to the top of the calibration table 1, a placement groove 9 is provided on the top of the mounting seat 8, a support plate 10 is slidably connected to the placement groove 9, the top of the support plate 10 abuts against the oil flow meter 11, the upper half of the inner wall side of the placement groove 9 is arc-shaped, the lower half of the inner wall side of the placement groove 9 is a vertical surface, the lower half of the inner wall side of the placement groove 9 is coupled with the front and rear sides of the support plate 10, a telescopic rod 12 is fixedly connected to the bottom of the support plate 10, the other end of the telescopic rod 12 is fixedly connected to the bottom wall of the slide 2, a mounting groove 17 is provided on the lower part of the inner wall side of the placement groove 9, a gear 18 is rotatably connected to the inner wall of the mounting groove 17, and the support plate 10 is provided with a mounting groove 17. The front and rear sides of the plate 10 are provided with teeth meshing with the gear 18, the top of the mounting seat 8 is provided with an arc groove 20, the arc groove 20 is slidably connected with an arc tooth plate 19 meshing with the gear 18, the top of the arc tooth plate 19 is provided with an avoidance groove 21, and the side of the arc tooth plate 19 is provided with a limited hole 22, the top of the mounting seat 8 is provided with a slot 23 at the midpoint of the top of the vertical arc groove 20, and the side of the inner wall of the slot 23 is provided with a limited slot 24, the slot 23 is slidably connected with an insertion strip 25, and the left and right sides of the insertion strip 25 are fixedly connected with a limit block 26 coupled with the limit slot 24, and the insertion strip 25 and the limit hole 22 are used in conjunction with each other;

[0032] The docking mechanism includes a fixed plate 3 fixedly installed on both sides of the top of the calibration table 1, a guide ring 4 is fixedly connected to the top of the fixed plate 3, two guide rings 4 are fixedly connected to both sides of the top of each fixed plate 3, an oil pipe 5 is slidably connected to the guide ring 4, an end of the oil pipe 5 close to the mounting seat 8 is fixedly connected to a connecting rod 6, a slider 7 is fixedly connected to the bottom of the connecting rod 6, the slider 7 is slidably connected to the slide groove 2, and an end of the oil pipe 5 close to the mounting seat 8 is fixedly connected to a rubber pad 27.

[0033] In this embodiment, the oil flow meter 11 is placed on the top of the support plate 10 and pressed downward. During the downward movement of the support plate 10, the gear 18 is driven to rotate, and the gear 18 then drives the arc-shaped toothed plate 19 to slide upward along the arc-shaped groove 20. During the upward movement of the arc-shaped toothed plate 19, the arc-shaped groove 20 is driven to abut against the front and rear sides of the oil flow meter 11, and the oil flow meter 11 is pushed from the front and rear sides through the bottom walls of the two arc-shaped grooves 20, so that the oil flow meter 11 remains in a vertical state, and then the insertion strip 25 is pushed to slide along the slot 23 and inserted into the limiting hole 22, so as to limit and fix the arc-shaped toothed plate 19, and then the limiting effect of the limiting groove 24 on the limiting block 26 is cooperated to prevent the insertion strip 25 from loosening, thereby preventing the arc-shaped toothed plate 19 from loosening;

[0034] The oil flow meter 11 is placed on the top of the support plate 10 and pressed downward, so that the support plate 10 abuts against the bottom wall of the placement groove 9. At this time, the oil flow meter 11 and the oil pipe 5 are at the same height, which is convenient for docking. The slider 7 then slides along the slide groove 2 toward the mounting seat 8, driving the connecting rod 6 and the oil pipe 5 to slide at the same time for docking. At this time, the guide ring 4 guides the oil pipe 5 and keeps the oil pipe 5 in a horizontal state. When the oil flow meter 11 is docked with the oil pipe 5, the rubber pad 27 is squeezed at the same time, causing the rubber pad 27 to deform and fit tightly to the connection between the oil flow meter 11 and the oil pipe 5.

[0035] Embodiment 2

[0036] like Figure 1-5 As shown, this embodiment is basically the same as embodiment 1. Preferably, the transmission mechanism includes a push-pull rod 13 which is obliquely rotatably connected to the lower side of the support plate 10. The other end of the push-pull rod 13 is rotatably connected to a first threaded tube 14. The first threaded tube 14 is meshed with a screw rod 15. The screw rod 15 is meshed with a second threaded tube 16. The left and right sides of the screw rod 15 have opposite thread directions, and the first threaded tube 14 and the second threaded tube 16 have opposite thread directions.

[0037] In this embodiment, the threads on the left and right sides of the screw rod 15 are designed to be opposite. When the first threaded tube 14 moves along the screw rod 15, it drives the screw rod 15 to rotate, and at the same time, the second threaded tube 16 moves along the screw rod 15 in the opposite direction to the movement of the first threaded tube 14, thereby playing the role of a linkage straightening mechanism and a docking mechanism.

[0038] Embodiment 3

[0039] like Figure 1-5 As shown, this embodiment is basically the same as Embodiment 1. Preferably, the upper half of the inner wall side of the placement groove 9 is coupled with the front and rear sides of the oil flow meter 11, and the top of the support plate 10 is arc-shaped and coupled with the bottom of the oil flow meter 11.

[0040] In this embodiment, the contact area and fit degree with the oil flow meter 11 are increased to prevent the oil flow meter 11 from shaking.

[0041] Embodiment 4

[0042] like Figure 1-5 As shown, this embodiment is basically the same as Embodiment 1. Preferably, the bottom of the slider 7 is fixedly connected to the second threaded tube 16 .

[0043] In this embodiment, it plays the role of connecting the transmission mechanism to the docking mechanism.

[0044] Embodiment 5

[0045] like Figure 1-5 As shown, this embodiment is basically the same as Embodiment 1. Preferably, the height of the oil pipe 5 is initially lower than the height of the support plate 10 .

[0046] In this embodiment, a height difference is reserved so that the oil flow meter 11 can be kept at the same height as the oil pipe when the oil flow meter 11 is pressed downward, thereby facilitating docking.

[0047] Embodiment 6

[0048] like Figure 1-5 As shown, this embodiment is basically the same as Embodiment 1. Preferably, the avoidance groove 21 is coupled to the connection of the oil flow meter 11, and the depth of the avoidance groove 21 is less than half of the pipe diameter of the connection of the oil flow meter 11.

[0049] In this embodiment, the two arc-shaped tooth plates 19 are conveniently pressed against each other, thereby improving the reliability of the process of aligning the oil flow meter 11 .

[0050] Embodiment 7

[0051] like Figure 1-5 As shown, this embodiment is basically the same as Embodiment 1. Preferably, the lead of the screw rod 15 engaging the first threaded tube 14 is smaller than the lead of the screw rod 15 engaging the second threaded tube 16 .

[0052] In this embodiment, the moving speed of the second threaded tube 16 is accelerated, so that the oil flow meter 11 is pressed downward for a short distance, the oil pipe 5 is driven to move a long distance, and the reliability of the device is enhanced.

[0053] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rapid calibration device for an oil flow meter, comprising a calibration platform, a slide groove is provided on the top of the calibration platform, and is characterized in that: A straightening mechanism is provided in the middle of the top of the calibration platform, docking mechanisms are provided on both sides of the top of the calibration platform, and a transmission mechanism is provided on the bottom wall of the slideway; The alignment mechanism includes a mounting seat fixedly connected to the top of the calibration table, a placement slot is provided on the top of the mounting seat, a support plate is slidably connected to the placement slot, the top of the support plate abuts the oil flow meter, the upper half of the side surface of the inner wall of the placement slot is arc-shaped, the lower half of the side surface of the inner wall of the placement slot is a vertical surface, the lower half of the side surface of the inner wall of the placement slot is coupled to the front and rear side surfaces of the support plate, a telescopic rod is fixedly connected to the bottom of the support plate, the other end of the telescopic rod is fixedly connected to the bottom wall of the slide slot, a mounting slot is provided on the lower part of the side surface of the inner wall of the placement slot, and the inner wall of the mounting slot is rotated The gear is dynamically connected, the front and rear sides of the support plate are provided with teeth meshing with the gear, the top of the mounting seat is provided with an arc groove, the arc groove is slidably connected with an arc tooth plate meshing with the gear, the top of the arc tooth plate is provided with an avoidance groove, the side of the arc tooth plate is provided with a limited hole, the top of the mounting seat is provided with a slot at the midpoint of the top of the vertical arc groove, the side of the inner wall of the slot is provided with a limited slot, the slot is slidably connected with an insertion strip, the left and right sides of the insertion strip are fixedly connected with limit blocks coupled with the limit slot, and the insertion strip and the limit hole are used in conjunction with each other; The docking mechanism comprises a fixing plate fixedly mounted on both sides of the top of the calibration platform, the top of the fixing plate is fixedly connected with a guide ring, the guide ring is slidably connected with an oil pipe, one end of the oil pipe close to the mounting seat is fixedly connected with a connecting rod, the bottom of the connecting rod is fixedly connected with a slider, the slider is slidably connected with a slide groove, and one end of the oil pipe close to the mounting seat is fixedly connected with a rubber pad; The transmission mechanism includes a push-pull rod which is obliquely rotatably connected to the lower side of the support plate, the other end of the push-pull rod is rotatably connected to a first threaded tube, the first threaded tube is meshed with a screw rod, the screw rod is meshed with a second threaded tube, the left and right sides of the screw rod have opposite thread directions, and the first threaded tube and the second threaded tube have opposite thread directions.

2. The oil flow meter rapid calibration device according to claim 1, characterized in that: The upper half of the inner wall side of the placement groove is coupled with the front and rear side of the oil flow meter, and the top of the support plate is arc-shaped and coupled with the bottom of the oil flow meter.

3. The oil flow meter rapid calibration device according to claim 1, characterized in that: The bottom of the sliding block is fixedly connected to the second threaded tube.

4. The oil flow meter rapid calibration device according to claim 1, characterized in that: The height of the oil pipe is initially lower than the height of the support plate.

5. The oil flow meter rapid calibration device according to claim 1, characterized in that: The avoidance groove is coupled to a connection point of the oil flow meter, and a depth of the avoidance groove is less than half of a pipe diameter of the connection point of the oil flow meter.

6. The oil flow meter rapid calibration device according to claim 1, characterized in that: The lead of the screw rod at the point where it engages with the first threaded tube is smaller than the lead of the screw rod at the point where it engages with the second threaded tube.

7. The oil flow meter rapid calibration device according to claim 1, characterized in that: Two guide rings are fixedly connected to both sides of the top of each fixing plate.

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