CN212963508U

CN212963508U - Scraper flowmeter with mechanical-electronic double-meter structure

Info

Publication number: CN212963508U
Application number: CN202020986440.XU
Authority: CN
Inventors: 张伟; 王涛; 陈绍华; 李江波
Original assignee: Zhejiang Zhongya Meter Co ltd
Current assignee: Zhejiang Zhongya Meter Co ltd
Priority date: 2020-06-03
Filing date: 2020-06-03
Publication date: 2021-04-13
Anticipated expiration: 2030-06-03

Abstract

The utility model relates to a scraper flowmeter with a mechano-electronic double-meter structure, which comprises a shell, a pulse transmitter, a counter, a first fixed block, a cylinder, a sampling groove, a second fixed block, a fixed cylinder, a first connecting rod, a second connecting rod, a first rotating motor, a first hemispherical plate, a second hemispherical plate, a rotating rod, a matching plate, a square groove, a rack, a cleaning gear, a cleaning motor and an L-shaped rod, the L-shaped rod is clamped with the rack, the length of the L-shaped rod is the same as the thickness of the rack, the cleaning motor is provided with a double shaft, the cleaning motor is connected with a square block, one side of the square block is tightly attached to the inner side of the shell, the other side of the square block is integrally connected with an elliptical block, the major axis of the oval block is longer than the length of the square block, and after the oval block is rotated by the cleaning motor, the oval block can extrude the inner side wall of the shell. The utility model discloses add pulse signal generator and counter, not only have the high range, but also have the advantage of high accuracy.

Description

Scraper flowmeter with mechanical-electronic double-meter structure

Technical Field

The utility model relates to a flowmeter technical field, concretely relates to scraper blade flowmeter of mechano-electronic double gauge head structure.

Background

The volumetric flowmeter is used as a measuring instrument for continuously or discontinuously measuring the volume flow of liquid flowing through a closed pipeline, and is suitable for the transfer of crude oil and finished products and the measurement of trade settlement. The liquid between the inlet and the outlet of the flowmeter has a pressure difference which needs to be maintained in the whole metering process so as to drive the scraper and the rotor to rotate, and the scraper design in the flowmeter is an item which can prevent the liquid entering the flowmeter from generating turbulence and the pressure difference from being reduced. The liquid detected in the flowmeter is not invariable and needs to be detected by a plurality of liquids, and the flowmeter needs to constantly determine whether the liquid in the flowmeter is not degenerated or the components are invariable in the measuring process to ensure high precision, so that the liquid in the flowmeter needs to be detected frequently to avoid errors and improve the precision.

In addition, the span ratio in current flow meters is a ratio volumetric between the minimum measurable flow and the maximum measurable flow, and the flow meters currently have two main forms: turbine flowmeters and skip bucket flowmeters.

The principle of a turbine flowmeter is to divide the fluid into a number of discrete individual volumes and then accumulate the total number of unit volumes through the flowmeter to determine the flow rate. The flowmeter is mainly used for measuring clean fluid, and when more impurities are contained in the fluid, the fouling phenomenon can occur, so that the measuring pipe is blocked, and the measurement cannot be carried out.

The skip bucket flowmeter is mainly configured to calculate the number of times of reversal of the skip bucket per unit time to determine the flow rate. The turndown ratio of such meters is small. The flow cannot be measured at a high flow rate, and the flow cannot be measured at a low flow rate. In addition, since the volume is calculated by calculating the turnover frequency of the dump bucket, the error is relatively large. In addition, after the tipping bucket overturns for a long time, the inside of the tipping bucket is also scaled, so that the calculation of the volume is influenced, and the measurement precision is further influenced.

Both of the above-mentioned flowmeters have defects, and are not provided with double heads for measuring flow, and need improvement.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a scraper flowmeter of mechano-electronic double gauge structure, it adds and is equipped with pulse signal generator and counter, not only has the high range, but also has the advantage of high accuracy.

In order to achieve the above purpose, the utility model provides a following technical scheme: a scraper flowmeter with a mechanical-electronic double-meter structure comprises a shell, wherein the shell is provided with a pulse transmitter, a counter used for receiving the pulse transmitter is arranged above the shell, a first fixed block is arranged above the shell, a cylinder is integrally connected above the first fixed block, the cylinder is provided with a sampling groove which penetrates through the cylinder along the axial lead of the cylinder and is communicated with the inside of the shell, a second fixed block is connected above the cylinder, a fixed cylinder is fixedly connected below the second fixed block, the fixed cylinder is connected with a first connecting rod, the first connecting rod is connected with a second connecting rod in a clamping manner, the second connecting rod is fixedly connected with a first rotating motor, the first rotating motor is provided with an output shaft, the output shaft is connected with a first hemispherical plate, and the first rotating motor is fixedly connected with a second hemispherical plate, the output shaft can drive the first hemispherical plate to rotate towards the second hemispherical plate until the first hemispherical plate and the second hemispherical plate form a sphere, the middle part of the shell is provided with a rotating plate, the middle part of the rotating plate is provided with a rotating rod, the side surface of the rotating plate is connected with a plurality of matching plates, one side of the matching plates, which faces the side wall of the shell, is provided with a square groove, a rack is arranged in the square groove, the rack is meshed with a cleaning gear, the axial lead of the cleaning gear is connected with a cleaning motor, the cleaning motor is integrally connected with an L-shaped rod, the L-shaped rod is connected with the rack in a clamping manner, the length of the L-shaped rod is the same as the thickness of the rack, the cleaning motor is arranged as a double shaft, the cleaning motor is connected with a square block, the inner side of the shell is tightly attached to one side of the square block, the other side of the square block is integrally connected, after the cleaning motor rotates the elliptical block, the elliptical block can extrude the inner side wall of the shell.

By adopting the technical scheme, when a sample needs to be taken, the fixed cylinder drives the first connecting rod to move downwards so as to drive the second connecting rod to move downwards, the movement of the second connecting rod drives the first rotating motor to move downwards so as to drive the output shaft to move downwards, the downward movement of the output shaft and the first rotating motor drives the first hemispherical plate and the second hemispherical plate to move downwards, when the first hemispherical plate and the second hemispherical plate move downwards below the liquid level in the shell, the first rotating motor drives the output shaft to drive the first hemispherical plate to rotate towards the second hemispherical body, after one end of the first hemispherical plate and one end of the second hemispherical body are separated, the liquid in the shell flows into the first hemispherical body and the second hemispherical plate, then the first rotating motor drives the output shaft to rotate so as to drive the first hemispherical plate to rotate towards the second hemispherical body until a closed spherical body is formed, and therefore, the liquid is in the closed first hemispherical plate and the closed second hemispherical body, then the fixed cylinder drives the first hemisphere plate and the second hemisphere to ascend and return to the original position, and the purpose of sampling can be achieved. The cleaning motor is connected with the L-shaped rod in an integrated manner, the L-shaped rod is clamped with the rack, so that the L-shaped rod can only move along the length direction of the rack, the cleaning motor can be driven to drive the cleaning gear to rotate around the axis of the cleaning motor, and the cleaning gear can move along the length direction of the rack, the movement of the cleaning gear can drive the square block and the elliptical block integrally connected with the square block to move, the square block can rotate around the axis of the output shaft of the cleaning motor under the driving action of the cleaning motor, the square block can drive the elliptical block to rotate under the rotation of the square block, the square block and the elliptical block can both move along the length direction of the square groove in the process, and the long axis of the elliptical block is larger than the length of the square block, so that the elliptical block can generate an extrusion action with the inner side wall of the shell after the elliptical block rotates to the direction far away from the L-shaped rod, therefore, dirt or impurities accumulated on the inner side wall of the shell are cleaned, and the shell is cleaned.

The utility model discloses further set up to: one side of the first connecting rod is provided with a triangular groove, and the second connecting rod is integrally connected with a triangular block which can be clamped into the triangular groove.

Through adopting above-mentioned technical scheme, because the second connecting rod is in the cylinder, consequently the second connecting rod can only remove along the axial lead of self, consequently the buckle connection cooperation of triangular groove and triangle piece lets first connecting rod and second connecting rod can inseparable buckle connection. When the first connecting rod and the second connecting rod need to be separated, only the triangular block and the triangular groove need to be separated.

The utility model discloses further set up to: the inside wall of cylinder is provided with the standing groove with the sample groove intercommunication, be provided with first promotion cylinder in the standing groove, first promotion cylinder is connected with and promotes the piece.

Through adopting above-mentioned technical scheme, when needing to take out the second connecting rod, the first promotion cylinder of drive drives and promotes the piece extrusion second connecting rod can.

The utility model discloses further set up to: the side of cylinder is provided with the sampling tube, the middle part of sampling tube is provided with the through groove that runs through the sampling tube.

Through adopting above-mentioned technical scheme, second connecting rod, first rotation motor and hemisphere board are promoted to the opening part of running through the groove after, take out from running through the groove can.

The utility model discloses further set up to: the sampling tube is provided with the elevator that is in through groove opening part, elevator and sampling tube threaded connection, the below of elevator is provided with first rotary rod.

Through adopting above-mentioned technical scheme, let first rotary rod rotate and drive the elevator and rotate round the axial lead of self, the elevator rotates the back and will remove along the axial lead of self, moves the back towards the opening part that runs through the groove when the elevator, and the hemisphere board that is in on the elevator will receive the effect of elevator and remove until passing through the outside that the groove is in the sampling tube.

The utility model discloses further set up to: the inner side wall of the cylinder is provided with a positioning cylinder, the positioning cylinder is connected with a first positioning block, the first positioning block is arranged to be arc-shaped, and the positioning cylinder where the first positioning block is located faces one side of the first hemispherical plate.

Through adopting above-mentioned technical scheme, the rigid joint of head rod and second connecting rod is when being in the same place, and both connect and not firm, and the location cylinder drives first locating piece and removes until the extrusion hemisphere board this moment, can let the one end of three hornblocks and the tank bottom butt of triangular groove, let both connect more closely.

The utility model discloses further set up to: one side of the lifting block towards the first rotary rod is provided with a groove, the two sides of the groove are provided with first springs, the other end of each first spring is fixedly connected with a clamping block, and one end of each first rotary rod towards the lifting block is provided with a clamping groove for clamping the clamping block.

Through adopting above-mentioned technical scheme, when needing to use first rotary rod, move the one end of first rotary rod towards the recess, two fixture blocks will be extruded to the one end of this in-process first rotary rod, let two fixture blocks remove towards the direction that deviates from each other, when first rotary rod removes to draw-in groove and fixture block and is in the coplanar, the fixture block will be gone into the joint that realizes fixture block and first rotary rod in the draw-in groove under the effect of first spring, the fixture block is in the recess, can only remove along the length direction of recess, rotate first rotary rod and can drive the elevator and rotate after that.

The utility model discloses further set up to: the top of the rotating rod is sleeved with a first gear, the first gear is engaged with a second gear, a third connecting rod is arranged at the axial lead of the second gear, the third connecting rod is connected with a third gear, the third gear is engaged with a fourth gear, a third fixing block is arranged above the fourth gear, a detection round point is arranged on one side of the third fixing block, which is far away from the fourth gear, a pulse transmitter is arranged above the fourth gear, a counter for receiving the pulse transmitter is arranged above the shell, a filter pipe is arranged on one side of the shell, a first filter screen is arranged in the filter pipe, a first distance sensor and a second distance sensor which are arranged on two sides of the fourth gear are arranged in the shell, a second positioning block is fixedly connected to the middle of the first filter screen, and a second pushing cylinder is arranged in the middle of the second positioning block, the utility model discloses a filter tube, including filter tube, second push cylinder, dead lever, second rotary rod, protruding type groove, second push cylinder and telescopic link, the second push cylinder is connected with the telescopic link, the inside of second locating piece is provided with the rotation motor of being connected with second push cylinder, be provided with the dead lever in the pipe wall of filter tube, the dead lever is provided with in the dead lever, the dead lever has cup jointed the axial lead pivoted second rotary rod that can wind the dead lever, the second rotary rod sets up with the telescopic link is perpendicular, the part is placed to the one end of second rotary rod and is in the second filter screen in the filter tube, be provided with first cylinder in the second locating piece, first cylinder is connected with the movable rod, the side of movable rod is provided with protruding type groove, be provided with the protruding type piece that.

Through adopting above-mentioned technical scheme, liquid flows in the filter tube after in, through the filter screen, some impurity will be detained in one side of filter screen, back in liquid inflow casing, liquid will strike the cooperation board and then drive the rotor plate and rotate, the rotation of rotor plate will drive first gear, the rotation of first gear drives the rotation of second gear and then drives the third connecting rod and rotate around the axial lead of self, the rotation of third connecting rod drives the rotation of third gear and then drives the fourth gear, the rotation of fourth gear will drive the rotation of third fixed block and then drive the rotation of detection dot round the axial lead of fourth gear, thereby after the rotatory round of detection dot, thereby pulse transmitter will receive signal and form the pulse, thereby the counter can receive the pulse and will detect dot pivoted number of times and show on the screen of counter. The utility model discloses utilize the rotation of gear to come measuring flow, have the advantage of range ratio high. The detection round point can be detected only after the fourth gear rotates for a circle, when the gear rotates for less than the circle, the corresponding rotation amplitude cannot be detected, so the accuracy is low, the first distance sensor and the second distance sensor are additionally arranged and positioned on two sides of the fourth gear, and after the detection round point moves, the first distance sensor and the second distance sensor can detect the distance of the detection round point, thereby the rotating angle of the detection round point on the third fixed block is calculated, and the measurement accuracy is improved. The second promotes the cylinder and drives the telescopic link and remove along the axial lead of self, after the telescopic link removed to second rotary rod department, the second rotated the motor and driven the second and promote the cylinder and rotate and then drive the telescopic link and rotate, the telescopic link will extrude the second rotary rod and then let the second rotary rod rotate round the axial lead of dead lever after rotating, the back is rotated to the second rotary rod, the second filter screen that is in second rotary rod top falls to one side of first filter screen because of the supporting role that no longer receives the second rotary rod, thereby strengthen the filtering action of filter tube. After the telescopic link is in the outside of second locating piece, protruding type piece receives the effort of second spring and can move towards the direction that deviates from the tank bottom of convex type groove to the part is in the outside of telescopic link, is used for slowing down the velocity of flow between first filter screen and the second filter screen, and the cooperation in convex type piece and convex type groove lets protruding type piece can only be in on the lateral wall of telescopic link in addition, avoids both to separate.

The utility model discloses further set up to: the telescopic link includes the concave plate of a plurality of mutual joints, the one end of concave plate is provided with the hook piece, the side of concave plate is provided with the holding tank that is used for holding the hook piece, the hook piece can remove along the length direction of holding tank, and is a plurality of the concave plate is provided with the intercommunication groove that runs through a plurality of concave plates simultaneously.

Through adopting above-mentioned technical scheme, the piston rod that the second promoted the cylinder passes the intercommunication groove and pushes up on the inside wall of concave plate, along with the removal of piston, the concave plate that is in furthest will drive the hook piece and remove in the holding tank, thereby when the hook piece remove to the one end of holding tank after, the concave plate that is in furthest will drive adjacent concave plate and remove the removal that realizes a plurality of concave plates and then realize the flexible of telescopic link. The plurality of concave plates can form a shell and play a role in protection.

To sum up, the utility model discloses following beneficial effect has:

when a sample needs to be taken, the fixed cylinder drives the first connecting rod to move downwards so as to drive the second connecting rod to move downwards, the movement of the second connecting rod drives the first rotating motor to move downwards so as to drive the output shaft to move downwards, the downward movement of the output shaft and the first rotating motor drives the first hemispherical plate and the second hemispherical plate to move downwards, when the first hemispherical plate and the second hemispherical plate move downwards below the liquid level in the shell, the first rotating motor drives the output shaft to drive the first hemispherical plate to rotate towards the second hemispherical body, after one end of the first hemispherical plate and one end of the second hemispherical body are separated, the liquid in the shell flows into the first hemispherical body and the second hemispherical plate, then the first rotating motor drives the output shaft to rotate so as to drive the first hemispherical plate to rotate towards the second hemispherical body until a closed spherical body is formed, so that the liquid is positioned in the closed first hemispherical plate and the closed second hemispherical body, then the fixed cylinder drives the first hemispherical plate and the second hemispherical body to ascend to return to the original position, the purpose of sampling can be achieved. The cleaning motor is connected with the L-shaped rod in an integrated manner, the L-shaped rod is clamped with the rack, so that the L-shaped rod can only move along the length direction of the rack, the cleaning motor can be driven to drive the cleaning gear to rotate around the axis of the cleaning motor, and the cleaning gear can move along the length direction of the rack, the movement of the cleaning gear can drive the square block and the elliptical block integrally connected with the square block to move, the square block can rotate around the axis of the output shaft of the cleaning motor under the driving action of the cleaning motor, the square block can drive the elliptical block to rotate under the rotation of the square block, the square block and the elliptical block can both move along the length direction of the square groove in the process, and the long axis of the elliptical block is larger than the length of the square block, so that the elliptical block can generate an extrusion action with the inner side wall of the shell after the elliptical block rotates to the direction far away from the L-shaped rod, therefore, dirt or impurities accumulated on the inner side wall of the shell are cleaned, and the shell is cleaned.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

FIG. 2 is a schematic structural diagram of the connection among the cylinder, the sampling tube, the lifting block and the second fixing block in the embodiment;

FIG. 3 is a schematic structural view showing a connection relationship between the rotating motor and the first hemispherical plate in the embodiment;

FIG. 4 is a schematic diagram of another view of the embodiment after the cylinder is removed;

FIG. 5 is a sectional view of the embodiment;

FIG. 6 is an enlarged view of a portion of area A of FIG. 5;

FIG. 7 is a partial enlarged view of the area B in FIG. 5;

FIG. 8 is a schematic structural diagram of the connection between the square grooves, the square blocks and the mating plates in the embodiment;

FIG. 9 is a side perspective view of a mating plate of an embodiment;

FIG. 10 is a schematic structural diagram of the connection relationship among the rack, the cleaning gear, the cleaning motor, the L-shaped rod, the square block and the oval block in the embodiment.

Reference numerals: 1. a housing; 2. a first fixed block; 3. a cylinder; 4. a sampling groove; 5. a second fixed block; 6. fixing the air cylinder; 7. a first connecting rod; 8. a first rotating electric machine; 9. a first hemispherical plate; 10. a second hemispherical plate; 11. a square groove; 12. a rack; 13. cleaning the gear; 14. cleaning the motor; 15. an L-shaped rod; 16. a triangular groove; 17. a triangular block; 18. a placement groove; 19. a first push cylinder; 20. a pushing block; 21. a sampling tube; 22. a through groove; 23. a lifting block; 24. a first rotating rod; 25. a square block; 26. an elliptical block; 27. positioning the air cylinder; 28. a first positioning block; 29. a groove; 30. a first spring; 31. a clamping block; 32. a card slot; 33. a rotating plate; 34. rotating the rod; 35. a mating plate; 36. a first gear; 37. a second gear; 38. a third connecting rod; 39. a third gear; 40. a fourth gear; 41. a third fixed block; 42. detecting dots; 43. a pulse transmitter; 44. a counter; 45. a filter tube; 46. a first filter screen; 47. a first distance sensor; 48. a second distance sensor; 49. a second positioning block; 50. a second push cylinder; 51. a telescopic rod; 52. a second rotating electric machine; 53. an empty groove; 54. fixing the rod; 55. a second rotating rod; 56. a second filter screen; 57. a first cylinder; 58. a movable rod; 59. a convex groove; 60. a convex block; 61. a second spring; 62. a concave plate; 63. hooking the block; 64. accommodating grooves; 65. a communicating groove; 66. a second connecting rod.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

A scraper flowmeter with a mechanical-electronic double-meter structure is shown in figures 1-10 and comprises a shell 1, wherein the shell 1 is provided with a pulse transmitter 43, a counter 44 for receiving the pulse transmitter 43 is arranged above the shell 1, a first fixed block 2 is arranged above the shell 1, a cylinder 3 is integrally connected above the first fixed block 2, the cylinder 3 is provided with a sampling groove 4 which penetrates through the cylinder 3 along the axial lead of the cylinder 3 and is communicated with the inside of the shell 1, a second fixed block 5 is connected above the cylinder 3, a fixed cylinder 6 is fixedly connected below the second fixed block 5, the fixed cylinder 6 is connected with a first connecting rod 7, the first connecting rod 7 is connected with a second connecting rod 66 in a clamping manner, the second connecting rod 66 is fixedly connected with a first rotating motor 8, and the first rotating motor 8 is provided with an output shaft, the discharging shaft is connected with a first hemispherical plate 9, the first rotating motor 8 is fixedly connected with a second hemispherical plate 10, the discharging shaft can drive the first hemispherical plate 9 to rotate towards the second hemispherical plate 10 until the first hemispherical plate 9 and the second hemispherical plate 10 form a sphere, the middle part of the shell 1 is provided with a rotating plate 33, the middle part of the rotating plate 33 is provided with a rotating rod 34, the side surface of the rotating plate 33 is connected with a plurality of matching plates 35, one side of the matching plates 35, which faces the side wall of the shell 1, is provided with a square groove 11, a rack 12 is arranged in the square groove 11, the rack 12 is meshed with a cleaning gear 13, the axial lead of the cleaning gear 13 is connected with a cleaning motor 14, the cleaning motor 14 is integrally connected with an L-shaped rod 15, the L-shaped rod 15 is connected with the rack 12 in a clamping manner, the length of the L-shaped rod 15 is the same as the thickness of the rack 12, the cleaning motor 14 is arranged as a double shaft, the cleaning motor 14 is connected with a square block 25, one side of the square block 25 is tightly attached to the inner side of the shell 1, the other side of the square block 25 is integrally connected with an elliptical block 26, the long axis of the elliptical block 26 is larger than the length of the square block 25, and after the cleaning motor 14 rotates the elliptical block 26, the elliptical block 26 can extrude the inner side wall of the shell 1.

One side of the first connecting rod 7 is provided with a triangular groove 16, and the second connecting rod 66 is integrally connected with a triangular block 17 which can be clamped in the triangular groove 16.

The inside wall of cylinder 3 is provided with the standing groove 18 with sample groove 4 intercommunication, be provided with first promotion cylinder 19 in the standing groove 18, first promotion cylinder 19 is connected with and promotes piece 20.

The side of cylinder 3 is provided with sampling tube 21, the middle part of sampling tube 21 is provided with the through groove 22 that runs through sampling tube 21.

The sampling tube 21 is provided with a lifting block 23 at an opening of the through groove 22, the lifting block 23 is in threaded connection with the sampling tube 21, and a first rotating rod 24 is arranged below the lifting block 23.

The inner side wall of the cylinder 3 is provided with a positioning cylinder 27, the positioning cylinder 27 is connected with a first positioning block 28, the first positioning block 28 is in an arc shape, and the positioning cylinder 27 at which the first positioning block 28 is located faces one side of the first hemispherical plate 9.

One side of the lifting block 23 facing the first rotating rod 24 is provided with a groove 29, two sides of the groove 29 are provided with first springs 30, the other end of each first spring 30 is fixedly connected with a clamping block 31, and one end of the first rotating rod 24 facing the lifting block 23 is provided with a clamping groove 32 for the clamping block 31 to be clamped in.

First gear 36 has been cup jointed at the top of dwang 34, first gear 36 has engaged with second gear 37, the axial lead department of second gear 37 is provided with third connecting rod 38, third connecting rod 38 is connected with third gear 39, third gear 39 has engaged with fourth gear 40, the top of fourth gear 40 is provided with third fixed block 41, the one side that third fixed block 41 deviates from fourth gear 40 is provided with detection dot 42, the top of fourth gear 40 is provided with pulse signaling apparatus 43, the top of casing 1 is provided with the counter 44 that is used for receiving pulse signaling apparatus 43, one side of casing 1 is provided with filter tube 45, be provided with first filter screen 46 in the filter tube 45, be provided with first distance sensor 47 and second distance sensor 48 that are in fourth gear 40 both sides in the casing 1, the middle part fixedly connected with second locating piece 49 of first filter screen 46, a second pushing cylinder 50 is arranged in the middle of the second positioning block 49, the second pushing cylinder 50 is connected with a telescopic rod 51, a second rotating motor 52 connected with a second pushing cylinder 50 is arranged inside the second positioning block 49, an empty groove 53 is arranged in the pipe wall of the filtering pipe 45, a fixing rod 54 is arranged in the empty groove 53, the fixing rod 54 is sleeved with a second rotating rod 55 which can rotate around the axis of the fixing rod 54, the second rotating rod 55 is perpendicular to the telescopic rod 51, one end of the second rotating rod 55 is provided with a second filter screen 56 which is partially arranged in the filter pipe 45, a first air cylinder 57 is arranged in the second positioning block 49, the first air cylinder 57 is connected with a movable rod 58, a convex groove 59 is arranged on the side surface of the movable rod 58, a convex block 60 which is always positioned in the convex groove 59 is arranged in the convex groove 59, the bottom of the convex block 60 is provided with a second spring 61 fixedly connected with the bottom of the convex groove 59.

The telescopic rod 51 comprises a plurality of concave plates 62 which are clamped with each other, a hook block 63 is arranged at one end of each concave plate 62, an accommodating groove 64 for accommodating the hook block 63 is arranged on the side surface of each concave plate 62, the hook block 63 can move along the length direction of the accommodating groove 64, and a plurality of the concave plates 62 are provided with communication grooves 65 which penetrate through the concave plates 62 simultaneously.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, any modification, equivalent replacement, or improvement made within the design concept of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a scraper flow meter of mechano-electronic double gauge structure, includes casing (1), its characterized in that: the pulse signal generator is characterized in that a pulse signal generator (43) is arranged on the shell (1), a counter (44) used for receiving the pulse signal generator (43) is arranged above the shell (1), a first fixing block (2) is arranged above the shell (1), a cylinder (3) is integrally connected above the first fixing block (2), the cylinder (3) is provided with a sampling groove (4) which penetrates through the cylinder (3) along the axial lead of the cylinder (3) and is communicated with the inside of the shell (1), a second fixing block (5) is connected above the cylinder (3), a fixed cylinder (6) is fixedly connected below the second fixing block (5), the fixed cylinder (6) is connected with a first connecting rod (7), a second connecting rod (66) is clamped on the first connecting rod (7), and a first rotating motor (8) is fixedly connected on the second connecting rod (66), the first rotating motor (8) is provided with an output shaft, the output shaft is connected with a first hemispherical plate (9), the first rotating motor (8) is fixedly connected with a second hemispherical plate (10), the output shaft can drive the first hemispherical plate (9) to rotate towards the direction of the second hemispherical plate (10) until the first hemispherical plate (9) and the second hemispherical plate (10) form a sphere, the middle part of the shell (1) is provided with a rotating plate (33), the middle part of the rotating plate (33) is provided with a rotating rod (34), the side surface of the rotating plate (33) is connected with a plurality of matching plates (35), one side of the matching plate (35) towards the side wall of the shell (1) is provided with a square groove (11), a rack (12) is arranged in the square groove (11), the rack (12) is meshed with a cleaning gear (13), and the axial lead of the cleaning gear (13) is connected with a cleaning motor (14), clearance motor (14) an organic whole is connected with L shape pole (15), L shape pole (15) and rack (12) joint, the length of L shape pole (15) is the same with the thickness of rack (12), clearance motor (14) set up to the biax, clearance motor (14) are connected with square piece (25), the inboard of casing (1) is hugged closely to one side of square piece (25), the opposite side an organic whole of square piece (25) is connected with oval piece (26), the major axis of oval piece (26) is greater than the length of square piece (25), after clearance motor (14) rotated oval piece (26), the inside wall of casing (1) can be extruded to oval piece (26).

2. The drag flowmeter of mechano-electronic dual-meter configuration of claim 1, wherein: one side of the first connecting rod (7) is provided with a triangular groove (16), and the second connecting rod (66) is integrally connected with a triangular block (17) which can be clamped into the triangular groove (16).

3. The drag flowmeter of mechano-electronic dual-meter configuration of claim 1, wherein: the inner side wall of the cylinder (3) is provided with a placing groove (18) communicated with the sampling groove (4), a first pushing cylinder (19) is arranged in the placing groove (18), and the first pushing cylinder (19) is connected with a pushing block (20).

4. The drag flowmeter of mechano-electronic dual-meter configuration of claim 1, wherein: the side of cylinder (3) is provided with sampling tube (21), the middle part of sampling tube (21) is provided with runs through groove (22) that runs through sampling tube (21).

5. The drag flowmeter of mechano-electronic dual-head structure of claim 4, wherein: the sampling tube (21) is provided with a lifting block (23) at an opening of the through groove (22), the lifting block (23) is in threaded connection with the sampling tube (21), and a first rotating rod (24) is arranged below the lifting block (23).

6. The drag flowmeter of mechano-electronic dual-meter configuration of claim 1, wherein: the inside wall of cylinder (3) is provided with location cylinder (27), location cylinder (27) are connected with first locating piece (28), first locating piece (28) set up to the arcuation, location cylinder (27) that first locating piece (28) are located are towards one side of first hemisphere board (9).

7. The drag flowmeter of mechano-electronic dual-head construction of claim 5, wherein: one side of elevator (23) orientation first rotary rod (24) is provided with recess (29), the both sides of recess (29) are provided with first spring (30), the other end fixedly connected with fixture block (31) of first spring (30), the one end of first rotary rod (24) orientation elevator (23) is provided with draw-in groove (32) that are used for fixture block (31) card to go into.

8. The drag flowmeter of mechano-electronic dual-meter configuration of claim 1, wherein: a first gear (36) is sleeved at the top of the rotating rod (34), a second gear (37) is meshed with the first gear (36), a third connecting rod (38) is arranged at the axis of the second gear (37), the third connecting rod (38) is connected with a third gear (39), the third gear (39) is meshed with a fourth gear (40), a third fixing block (41) is arranged above the fourth gear (40), a detection dot (42) is arranged on one side, deviating from the fourth gear (40), of the third fixing block (41), a pulse signal transmitter (43) is arranged above the fourth gear (40), a filter pipe (45) is arranged on one side of the shell (1), a first filter screen (46) is arranged in the filter pipe (45), a first distance sensor (47) and a second distance sensor (48) are arranged on two sides of the fourth gear (40) in the shell (1), a second positioning block (49) is fixedly connected to the middle of the first filter screen (46), a second pushing cylinder (50) is arranged at the middle of the second positioning block (49), the second pushing cylinder (50) is connected with a telescopic rod (51), a second rotating motor (52) connected with the second pushing cylinder (50) is arranged inside the second positioning block (49), a hollow groove (53) is formed in the pipe wall of the filter pipe (45), a fixing rod (54) is arranged in the hollow groove (53), the fixing rod (54) is sleeved with a second rotating rod (55) capable of rotating around the axis of the fixing rod (54), the second rotating rod (55) is perpendicular to the telescopic rod (51), a second filter screen (56) with a part in the filter pipe (45) is placed at one end of the second rotating rod (55), and a first cylinder (57) is arranged in the second positioning block (49), first cylinder (57) are connected with movable rod (58), the side of movable rod (58) is provided with convex groove (59), be provided with protruding piece (60) that are located convex groove (59) all the time in convex groove (59), the bottom of protruding piece (60) is provided with second spring (61) with the tank bottom fixed connection in convex groove (59).

9. The drag flowmeter of mechano-electronic dual-head construction of claim 8, wherein: the telescopic rod (51) comprises a plurality of concave plates (62) which are clamped with each other, a hook block (63) is arranged at one end of each concave plate (62), an accommodating groove (64) used for accommodating the hook block (63) is formed in the side face of each concave plate (62), the hook block (63) can move along the length direction of the accommodating groove (64), and the concave plates (62) are provided with communicating grooves (65) which penetrate through the concave plates (62) simultaneously.