Device for measuring effective aperture of deep-well pump

Abstract

The utility model discloses a device for measuring the effective aperture of a deep-well pump, and relates to the technical field of devices for measuring the effective aperture of the deep-well pump, and the device comprises a basin body, water is injected into the basin body, four floaters float in the basin body, the four floaters are connected together through a support, the support is slidably connected with a vertical line, and the support is connected with a rope winding and unwinding machine for driving the vertical line to wind and unwind. One end of the vertical line is connected with a guide disc, and the vertical line is connected with the axis of the guide disc. Measurement errors are eliminated as much as possible through multiple times of measurement, measurement data of the guide disc at different heights are arranged, the coordinates of the center of the guide disc at each height are used as the circle center to draw a circle with the same diameter as the guide disc, the overlapped part of multiple circles is the effective aperture, and the precision of measuring the effective aperture of the deep-well pump is improved.

Description

Technical Field

[0001] The present application relates to the technical field of devices for measuring the effective aperture of a deep well pump, and in particular to a device for measuring the effective aperture of a deep well pump. Background Art

[0002] The device for measuring the effective aperture of a deep well pump generally refers to a device used to detect the internal structural dimensions of a deep well pump to ensure the normal operation and performance of the pump.

[0003] The existing measuring device uses a cylinder with an outer diameter of 400mm and a length of 6m. After entering the pre-buried small well pipe, the lower part of the cylinder is stuck about 1.13m away from the lower pipe mouth of the pre-buried well pipe, and it cannot fall freely. After the cylinder is lifted out of the well pipe and observed with an underwater camera, scratches were found at the above-mentioned stuck position. When using a measuring guide disc with an outer diameter of 405mm to test the orifice, it is also stuck at the gradually changing small pipe mouth at an elevation of 105.5m. The guide disc cannot enter the pre-buried small well pipe. It is judged that the effective circular diameter inside the steel pipe at this location is also smaller than the theoretical outer diameter of 413mm. The accuracy of measuring the effective aperture of the deep well pump is relatively poor and needs to be improved. Utility Model Content

[0004] The purpose of the present application is to provide a device for measuring the effective aperture of a deep well pump, in order to improve the accuracy of measuring the effective aperture of a deep well pump.

[0005] The present application provides a device for measuring the effective aperture of a deep well pump, which adopts the following technical solution: it includes a basin body, the basin body is filled with water, four floats are floating in the basin body, the four floats are connected together by a bracket, the bracket is slidably connected to a vertical line, the bracket is connected to a rope-retracting and -releasing machine for driving the vertical line to be retracted and released, one end of the vertical line is connected to a guide disk, and the vertical line is connected to the axial center line of the guide disk.

[0006] By adopting the above technical solution, the bracket is placed at the upper pipe mouth of the embedded well pipe, and the rope retracting machine makes the guide plate located at different measuring heights. When the well pipe to be measured moves up and down, the guide plate is guided by the inner wall of the embedded well pipe to move a small amount horizontally, driving the vertical line to move a certain amount. The vertical line, together with the bracket and the float, moves with it. After the bracket and the float stop following the vertical line in the free state, the XY coordinate values ​​of the vertical line and the origin are measured and recorded. The coordinate value is the center position of the circle at the height of the guide plate. Multiple measurements are performed to eliminate measurement errors as much as possible, and the measurement data of the guide plate at different heights are sorted out. The coordinates of the center of the guide plate measured at each height are used as the center of the circle to draw a circle with the same diameter as the guide plate. The overlapped part of multiple circles is the effective aperture, which improves the accuracy of measuring the effective aperture of the deep well pump.

[0007] Optionally, the bracket is provided with a through hole for slidingly cooperating with the vertical line.

[0008] By adopting the above technical solution, when the vertical line moves up and down, the sliding cooperation between the vertical line and the through hole plays a guiding and limiting role in the sliding of the vertical line, thereby improving the sliding stability of the vertical line.

[0009] Optionally, a hanging weight is connected to a side of the guide disk away from the vertical line, and the hanging weight is located at the axis center line of the guide disk.

[0010] By adopting the above technical solution, the hanging hammer increases the overall weight of the guide plate and improves the stability of the movement of the guide plate.

[0011] Optionally, the vertical line is detachably connected to the guide plate, and the vertical line is connected to the guide plate via a connecting assembly.

[0012] By adopting the above technical solution, the vertical line and the guide plate are detachably connected, so that it is convenient to replace the guide plates with different radius sizes, and it is suitable for embedded well pipes with different radius sizes.

[0013] Optionally, the connecting assembly includes a boss connected to the guide plate and a mounting column connected to the vertical line, the mounting column is provided with a mounting groove for the boss to be snapped into, and the mounting column is connected to a connecting structure for limiting the boss from being separated from the mounting groove.

[0014] By adopting the above technical solution, when installing the vertical line and the guide plate, the boss is inserted into the installation groove, the outer surface of the boss fits with the inner wall of the installation groove, and the inner wall of the installation groove plays a positioning role for the boss, making it convenient for the connecting structure to connect the installation column and the boss together.

[0015] Optionally, the connection structure is a fixing bolt threadedly connected to the boss and the mounting column.

[0016] By adopting the above technical solution, after the boss and the mounting column are positioned, the fixing bolts are threadedly connected to the boss and the mounting column, thereby improving the installation efficiency of the two.

[0017] Optionally, the connecting structure includes a plurality of locking beads slidably connected to the mounting column, the convex column is provided with a accommodating area for the locking beads to be snapped into, the mounting column is provided with a channel for slidingly cooperating with the corresponding locking bead, the channel is connected to the mounting groove, the mounting column is slidably connected with a locking ring, the locking ring is connected to the mounting column by an elastic member, a clearance groove for the locking bead to be snapped into is formed between the locking ring and the mounting column, when the locking bead is snapped into the accommodating area, the locking bead is disengaged from the clearance groove, when the locking bead is snapped into the clearance groove, the locking bead is disengaged from the accommodating area, and the locking ring is provided with an inclined surface for driving the locking bead to be disengaged from the clearance groove.

[0018] By adopting the above technical solution, when installing the boss and the mounting column, the locking ring is moved in the direction close to the vertical line, and the elastic part is elastically deformed and compressed under pressure until the locking bead corresponds to the clearance groove. At this time, the locking bead can be inserted into the clearance groove to insert the boss into the mounting groove. At this time, the channel corresponds to the accommodating area; the locking ring is loosened, and the elastic part elastically resets, and the elastic part forces the locking ring to slide in the direction away from the vertical line. The inclined surface flexibly abuts against the locking bead and drives the locking bead to be inserted into the accommodating area, thereby realizing the installation between the boss and the mounting column.

[0019] Optionally, the accommodating area is an annular groove arranged on the boss.

[0020] By adopting the above technical solution, as long as the channel and the annular groove are at the same height, the locking bead can be inserted into the annular groove, thereby improving the installation efficiency.

[0021] Optionally, a radius dimension of the channel close to the mounting groove is smaller than a radius dimension of the locking bead.

[0022] By adopting the above technical solution, the locking bead is prevented from escaping from the channel through the opening of the channel close to the installation groove.

[0023] Optionally, the mounting column is connected with a convex edge for abutting against the locking ring, and the locking ring is located between the elastic member and the convex edge.

[0024] By adopting the above technical solution, the convex edge limits the sliding of the locking ring, so that the locking ring moves to the corresponding position.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. Perform multiple measurements to eliminate measurement errors as much as possible, organize the measurement data of the guide disk at different heights, use the coordinates of the center of the guide disk measured at each height as the center of a circle with the same diameter as the guide disk, and the overlapping part of multiple circles is the effective aperture, which improves the accuracy of measuring the effective aperture of the deep well pump.

[0027] 2. The vertical line and the guide plate are detachably connected, so it is easy to replace the guide plates with different radius sizes, which is suitable for embedded well pipes with different radius sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a usage status diagram of Example 1 of the present application.

[0029] Figure 2 yes Figure 1 sectional view of .

[0030] Figure 3 It is a schematic diagram of the overall structure of Example 1 of the present application.

[0031] Figure 4 yes Figure 3 sectional view of .

[0032] Figure 5 yes Figure 4 A magnified image of area A.

[0033] Figure 6 yes Figure 4 Magnified view of area B.

[0034] Figure 7 This is a schematic diagram of the overall structure of Example 2 of the present application.

[0035] Figure 8 yes Figure 7 sectional view of .

[0036] Fig. 9 yes Figure 8 Magnified view of region C.

[0037] Explanation of the reference numerals in the accompanying drawings: 1. basin; 2. float; 3. bracket; 31. through hole; 4. vertical line; 5. rope retracting and releasing machine; 6. guide plate; 61. hanging hammer; 7. connecting assembly; 71. boss; 711. accommodating area; 7111. annular groove; 72. mounting column; 721. mounting groove; 722. channel; 723. flange; 73. connecting structure; 731. fixing bolt; 732. locking bead; 733. locking ring; 734. elastic member; 735. clearance groove; 736. inclined surface. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1 -Attached Fig. 9 This application is described in further detail.

[0039] The embodiment of the present application discloses a device for measuring the effective aperture of a deep well pump.

[0040] Example 1

[0041] Combination Figure 1 and Figure 2 As shown, it includes four basin bodies 1, each basin body 1 is filled with water, each basin body 1 has a float 2 floating in it, the four floats 2 are connected together by a bracket 3, the four floats 2 are fixedly connected to the bracket 3, the bracket 3 is slidably connected with a vertical line 4, and the shortest distances from the four floats 2 to the vertical line 4 are equal.

[0042] Combination Figure 3 , Figure 4 and Figure 5As shown, the bracket 3 is provided with a through hole 31 for slidingly cooperating with the vertical line 4, and the bracket 3 is fixedly connected with a rope-retracting and releasing machine 5 (the rope-retracting and releasing machine 5 is a prior art, and has the same function as the retracting and releasing device in the publication number CN202449684U) for driving the vertical line 4 to be retracted and released, and one end of the vertical line 4 is fixedly connected to the rope-retracting and releasing machine 5. The rope-retracting and releasing machine 5 is externally connected to a controller (not shown in the drawings), and the signal output end of the controller is connected to the signal input end of the rope-retracting and releasing machine 5.

[0043] Combination Figure 4 , Figure 5 and Figure 6 As shown, the end of the vertical line 4 away from the rope retracting and releasing machine 5 is detachably connected to the guide disc 6, the connection between the vertical line 4 and the guide disc 6 is located at the axis of the guide disc 6, and the side of the guide disc 6 away from the vertical line 4 is fixedly connected to the pendulum 61, and the pendulum 61 is located at the axis of the guide disc 6. The vertical line 4 is connected to the guide disc 6 through a connecting assembly 7, and the connecting assembly 7 includes a boss 71 fixedly connected to the side of the guide disc 6 away from the pendulum 61 and a mounting column 72 fixedly connected to one end of the vertical line 4, the boss 71 is located at the axis of the guide disc 6, and the connection between the vertical line 4 and the mounting column 72 is located at the axis of the mounting column 72. The side of the mounting column 72 away from the vertical line 4 is recessed and provided with a mounting groove 721 for the boss 71 to be inserted, and the mounting column 72 is connected to a connecting structure 73 for limiting the boss 71 from being separated from the mounting groove 721, and the connecting structure 73 is a fixing bolt 731 threadedly connected to the boss 71 and the mounting column 72.

[0044] The implementation principle of the device for measuring the effective aperture of a deep well pump in the embodiment of the present application is as follows:

[0045] The guide plate 6 used is slightly smaller than the inner diameter of the well pipe to be measured. The bracket 3 is placed on the upper pipe mouth of the embedded well pipe. The rope retracting machine 5 makes the guide plate 6 located at different measuring heights. When the well pipe to be measured moves up and down, the guide plate 6 is guided by the inner wall of the embedded well pipe to move a small amount horizontally, driving the vertical line 4 to move to a certain extent. The vertical line 4, together with the bracket 3 and the float 2, moves with it. After the bracket 3 and the float 2 stop following the vertical line 4 in the free state, the XY coordinate values ​​of the vertical line 4 and the origin are measured and recorded. The coordinate value is the center position of the circle at the height of the guide plate 6. Multiple measurements are performed to eliminate measurement errors as much as possible, and the measurement data of the guide plate 6 at different heights are sorted out. The coordinates of the center of the guide plate 6 measured at each height are used as the center of the circle to draw a circle with the same diameter as the guide plate 6. The overlapped part of multiple circles is the effective aperture, which improves the accuracy of measuring the effective aperture of the deep well pump.

[0046] Example 2

[0047] The difference between this embodiment and embodiment 1 is that, Figure 7 , Figure 8 and Fig. 9As shown, the connection structure 73 includes four locking beads 732 slidably connected to the mounting column 72. The mounting column 72 is provided with a channel 722 for slidably cooperating with the corresponding locking beads 732. The channel 722 is connected to the mounting groove 721. The radius of the channel 722 close to the mounting groove 721 is smaller than the radius of the locking beads 732. The outer peripheral surface of the protruding column 71 is provided with a receiving area 711 for partially inserting the locking beads 732. The receiving area 711 is an annular groove 7111 provided on the protruding column 71. The outer surface of the mounting column 72 is slidably connected with a locking ring 733. The locking ring 733 is connected to the mounting column 72 through an elastic member 734. The elastic member 734 is a spring. The two ends of the elastic member 734 are fixedly connected to the locking ring 733 and the mounting column 72 respectively. A clearance groove 735 for the locking bead 732 to be inserted into is formed between the locking ring 733 and the mounting column 72. When the locking bead 732 is inserted into the annular groove 7111, the locking bead 732 is separated from the clearance groove 735. When the locking bead 732 is inserted into the clearance groove 735, the locking bead 732 is separated from the annular groove 7111. The locking ring 733 is provided with an inclined surface 736 for driving the locking bead 732 to be separated from the clearance groove 735. The inclined surface 736 is located at one end of the locking ring 733 away from the elastic member 734. The outer peripheral surface of the mounting column 72 is fixedly connected with a convex edge 723 for contacting with the locking ring 733. The convex edge 723 is located at one end of the mounting column 72 away from the vertical line 4. The locking ring 733 is located between the elastic member 734 and the convex edge 723.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A device for measuring the effective aperture of a deep well pump, characterized in that: The invention comprises a basin body (1), the basin body (1) is filled with water, four floats (2) float in the basin body (1), the four floats (2) are connected together by a bracket (3), the bracket (3) is slidably connected to a vertical line (4), the bracket (3) is connected to a retracting and releasing rope machine (5) for driving the vertical line (4) to be retracted and released, one end of the vertical line (4) is connected to a guide disk (6), and the vertical line (4) is connected to the guide disk (6) at the axis center line.

2. The device for measuring the effective aperture of a deep well pump according to claim 1, characterized in that: The bracket (3) is provided with a through hole (31) for slidingly cooperating with the vertical line (4).

3. The device for measuring the effective aperture of a deep well pump according to claim 1, characterized in that: A hanging weight (61) is connected to the side of the guide plate (6) away from the vertical line (4), and the hanging weight (61) is located at the axis center line of the guide plate (6).

4. The device for measuring the effective aperture of a deep well pump according to claim 1, characterized in that: The vertical line (4) is detachably connected to the guide plate (6), and the vertical line (4) is connected to the guide plate (6) via a connecting assembly (7).

5. The device for measuring the effective aperture of a deep well pump according to claim 4, characterized in that: The connection assembly (7) comprises a boss (71) connected to the guide plate (6) and a mounting column (72) connected to the vertical line (4); the mounting column (72) is provided with a mounting groove (721) for the boss (71) to be inserted into; and the mounting column (72) is connected to a connection structure (73) for limiting the boss (71) from being separated from the mounting groove (721).

6. The device for measuring the effective aperture of a deep well pump according to claim 5, characterized in that: The connection structure (73) is a fixing bolt (731) threadedly connected to the protruding column (71) and the mounting column (72).

7. The device for measuring the effective aperture of a deep well pump according to claim 5, characterized in that: The connection structure (73) comprises a plurality of locking beads (732) slidably connected to the mounting column (72); the convex column (71) is provided with a receiving area (711) for the locking beads (732) to be inserted; the mounting column (72) is provided with a channel (722) for slidably cooperating with the corresponding locking beads (732); the channel (722) is communicated with the mounting groove (721); the mounting column (72) is slidably connected with a locking ring (733); the locking ring (733) is connected to the mounting column (72) via an elastic member (734). A clearance groove (735) for the locking bead (732) to be inserted is formed between the locking ring (733) and the mounting column (72); when the locking bead (732) is inserted into the accommodating area (711), the locking bead (732) is disengaged from the clearance groove (735); when the locking bead (732) is inserted into the clearance groove (735), the locking bead (732) is disengaged from the accommodating area (711); and the locking ring (733) is provided with an inclined surface (736) for driving the locking bead (732) to be disengaged from the clearance groove (735).

8. The device for measuring the effective aperture of a deep well pump according to claim 7, characterized in that: The accommodating area (711) is an annular groove (7111) arranged on the convex column (71).

9. The device for measuring the effective aperture of a deep well pump according to claim 7, characterized in that: The radius dimension of the channel (722) close to the mounting groove (721) is smaller than the radius dimension of the locking bead (732).

10. The device for measuring the effective aperture of a deep well pump according to claim 7, characterized in that: The mounting column (72) is connected with a convex edge (723) for abutting against the locking ring (733), and the locking ring (733) is located between the elastic member (734) and the convex edge (723).

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