Gyro for pipeline groundwater flow azimuth surveying

Abstract

The application relates to a gyroscope for pipeline underground water flow direction surveying, belonging to the technical field of flow direction measuring gyroscopes, which comprises a screw rod and a lifting cylinder in threaded transmission cooperation with the screw rod; the bottom end of the lifting cylinder is provided with a gyroscope and a measuring plate for measuring the water level, and one side of the lifting cylinder is fixed with a lifting box; a gear one is rotationally arranged in the lifting cylinder, and a gear two in mesh with the gear one is rotationally arranged in the lifting box; a limiting tube is rotationally arranged in the gear two, a threaded tube is rotationally arranged in the limiting tube, and the screw rod is in threaded transmission cooperation with the threaded tube; a clamping block is slidably arranged in the limiting tube along the radial direction of the limiting tube; the clamping block can be inserted with the outer circumferential surface of the threaded tube; a bottom shaft is fixed to the bottom of the outer circumferential surface of the gyroscope, and a top shaft is fixed to the top of the outer circumferential surface of the gyroscope; the bottom shaft is fixedly connected with the top surface of the measuring plate; and the top shaft is connected with the gear one. The application has the effect that the gyroscope can automatically stop descending after being contacted with water flow.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of flow measurement gyroscopes, in particular to a pipeline underground water flow direction survey gyroscope. BACKGROUND

[0002] At present, the underground artificial water pipe needs to be measured regularly for underground water flow direction.

[0003] The related art can refer to Chinese invention application No. CN115540840A, which discloses a pipeline underground water flow direction survey gyroscope, which comprises a lifting cylinder; the upper end of the lifting cylinder is provided with a traction rope, the lower end is provided with a lifting driving element, and the middle end is provided with a moving assembly; the lifting driving element is connected with a gyro survey assembly. The gyro survey assembly comprises a cylinder body; the cylinder body is provided with a data collector at the upper end and connected with the lifting driving element; the inside is provided with a rotor, and the bottom is provided with a sailboard matched with the rotor. The lifting cylinder is also provided with a signal transmitter connected with the data collector.

[0004] For the related art in the above, the inventors believe that there are the following defects: because the water pipe is buried underground at a distance from the horizontal plane, during the underground water level measurement, the gyro cannot accurately determine whether the gyro and the water flow measurement plate below the gyro are actually in contact with the water flow due to the lack of lighting during the descent process. In order to reduce the measurement error of multiple experiments, it is necessary to ensure that each measurement can be carried out at the same height, resulting in low measurement efficiency. SUMMARY

[0005] In order to improve the problem that the gyro cannot accurately determine whether it is in contact with the water flow, the present application provides a pipeline underground water flow direction survey gyroscope.

[0006] The pipeline underground water flow direction survey gyroscope provided by the present application adopts the following technical scheme:

[0007] The pipeline underground water flow direction survey gyroscope comprises a lead screw and a lifting cylinder in threaded transmission cooperation with the lead screw; the bottom end of the lifting cylinder is provided with a gyroscope and a measurement plate for measuring water level, and one side of the lifting cylinder is fixed with a lifting box; a gear one is rotationally arranged in the lifting cylinder, and a gear two engaged with the gear one is rotationally mounted in the lifting box; a limiting tube is rotationally mounted in the gear two, and a threaded tube is rotationally mounted in the limiting tube; the lead screw is in threaded transmission cooperation with the threaded tube; a clamping block is slidably arranged along the radial direction of the limiting tube; the clamping block is insertable with the outer peripheral surface of the threaded tube; a bottom shaft is fixed to the bottom of the outer peripheral surface of the gyroscope, and a top shaft is fixed to the top of the outer peripheral surface of the gyroscope; the bottom shaft is fixedly connected with the top surface of the measurement plate; and the top shaft is connected with the gear one.

[0008] By adopting the technical scheme, the gear one is connected with the gyroscope, the gyroscope is connected with the measuring plate, when the measuring plate contacts the water surface and rotates under the impact of the water flow, the gear one can drive the gear two to rotate; the gear two is internally provided with a threaded pipe which can be threadedly driven with the lead screw, the threaded pipe in the limiting state can drive the gyroscope to descend, when the gear two rotates, the clamping block which provides the limiting action for the threaded pipe is separated from the threaded pipe, the threaded pipe loses the limiting action and rotates with the lead screw, so that the gyroscope can stop descending after contacting the water surface.

[0009] Optionally, the gear two top surface is provided with a mounting hole, the limiting pipe is rotatably mounted in the mounting hole; the gear two inner circumferential surface is provided with an arc-shaped slot, one end of the clamping block can be inserted into the arc-shaped slot.

[0010] By adopting the technical scheme, when the gear two rotates, the clamping block will sink into the arc-shaped slot, so that the clamping block is separated from the threaded pipe.

[0011] Optionally, the limiting pipe outer circumferential surface is provided with a sliding groove one along the radial direction of the limiting pipe, the clamping block is slidingly arranged in the sliding groove one; the clamping block side wall is fixed with a guide piece, the sliding groove one inner wall is provided with a guide slot, the guide piece is slidingly connected with the guide slot along the radial direction of the limiting pipe.

[0012] By adopting the technical scheme, the guide slot provides a guide action for the guide piece, and reduces the possibility of the clamping block deviating from the track during the radial movement of the threaded pipe.

[0013] Optionally, the guide piece is fixed with a return spring away from the threaded pipe, one end of the return spring away from the guide piece is fixedly connected with the inner wall of the guide slot away from the threaded pipe.

[0014] By adopting the technical scheme, the return spring provides an elastic force to the guide piece away from the threaded pipe, when the clamping block loses the pressing action of the gear two inner wall, the clamping block can be driven to be separated from the threaded pipe by the spring two.

[0015] Optionally, the gear one top surface is provided with a through hole through which the top shaft can pass, the top shaft outer circumferential surface is fixed with a guide strip, and the through hole inner wall is provided with a guide hole which can slidingly cooperate with the guide strip.

[0016] By adopting the technical scheme, the guide slot provides a guide action for the guide strip, so that the gear one and the top shaft can keep synchronous rotation and relative sliding at the same time.

[0017] Optionally, the lifting cylinder inner top surface is fixed with a screw rod, and the gear one top surface is fixed with a threaded column which can threadedly drive the screw rod.

[0018] By adopting the technical scheme, the threaded column can drive the gear one to ascend by cooperating with the screw rod, the gear one is separated from the gear two after rotating several rounds, so that the gear two stops rotating.

[0019] Optionally, a plurality of rollers are fixedly arranged on the outer circumferential surface of the lifting cylinder in the vertical direction.

[0020] By adopting the technical scheme, the rollers on the lifting cylinder can keep the sliding connection between the lifting cylinder and the inner wall of the pipe body, and facilitate the descending of the lifting cylinder.

[0021] Optionally, the measuring plate is a wedge-shaped block with a trapezoidal cross section.

[0022] By adopting the technical scheme, since the length of the narrow end of the measuring plate is shorter than the length of the wide end, the measuring plate can rotate under the impact of water flow due to uneven stress.

[0023] In summary, the present application has at least one of the following beneficial technical effects:

[0024] 1. The gear one is connected with the gyroscope, and the gyroscope is connected with the measuring plate. When the measuring plate contacts the water surface and rotates under the impact of water flow, the gear one can drive the gear two to rotate. The threaded pipe which can be in threaded transmission cooperation with the screw rod is arranged in the gear two. The threaded pipe in the limiting state can drive the gyroscope to descend when rotating. When the gear two rotates, the clamping block which provides the limiting action for the threaded pipe is separated from the threaded pipe. The threaded pipe loses the limiting action and rotates with the screw rod, so that the gyroscope achieves the effect of stopping descending after contacting the water surface.

[0025] 2. The threaded column can drive the gear one to ascend by cooperating with the screw rod. The gear one is separated from the gear two after rotating several rounds, so that the gear two stops rotating.

[0026] 3. Since the length of the narrow end of the measuring plate is shorter than the length of the wide end, the measuring plate can rotate under the impact of water flow due to uneven stress. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic view of the lifting cylinder of the embodiment of the present application.

[0028] Figure 2 is a structural schematic view of the gear one and the gear two of the embodiment of the present application.

[0029] Figure 3 is a sectional view of the limiting tube of the embodiment of the present application.

[0030] Figure 4 is a structural schematic view of the gear two of the embodiment of the present application.

[0031] Figure 5 is a structural schematic view of the gyroscope of the embodiment of the present application.

[0032] Fig. 1, lifting cylinder; 11, lead screw; 12, measuring plate; 13, roller; 14, arc-shaped slot; 2, lifting box; 21, gear one; 22, gear two; 23, mounting hole; 24, limiting tube; 25, threaded tube; 26, sliding slot one; 27, clamping block; 3, connecting cylinder; 31, guide piece; 32, guide slot; 33, return spring; 4, gyroscope; 41, outer ring; 42, rotor; 43, bottom shaft; 44, top shaft; 5, screw rod; 51, threaded column; 52, perforation; 53, guide strip; 54, floating ball. DETAILED DESCRIPTION

[0033] The following will be described in detail with reference to the accompanying drawings. Figures 1-5 The application is further described in detail.

[0034] The application discloses a gyroscope for pipeline underground water flow direction survey. Referring to Figure 1 , the gyroscope for pipeline underground water flow direction survey comprises a lead screw 11 and a lifting cylinder 1 which is lifted by the lead screw 11 in a threaded transmission mode. The bottom end of the lifting cylinder 1 is used for mounting a gyroscope 4 and a measuring plate 12 which is used for measuring the water level.

[0035] Referring to Figure 1 and Figure 2 , the lifting cylinder 1 is a circular cylinder, and a plurality of rollers 13 are fixedly arranged on the vertical outer circumferential surface of the lifting cylinder 1. When the lifting cylinder 1 is lifted, the rollers 13 can be used for sliding cooperation with the pipe wall. The length of the lifting cylinder 1 is arranged to be equivalent to the inner diameter of the water pipe, so that the rollers 13 can be closely attached to the inner wall of the water pipe when the lifting cylinder 1 is lowered, thereby preventing the lifting cylinder 1 from rotating in the water pipe. One side of the lifting cylinder 1 is fixedly connected with a lifting box 2 which is communicated with the lifting cylinder 1. The lead screw 11 is arranged to pass through the lifting box 2. A gear one 21 is rotatably arranged in the lifting cylinder 1, and a gear two 22 which is engaged with the gear one 21 is rotatably arranged on the inner bottom surface of the lifting box 2. The lead screw 11 is coaxially connected with the gear two 22.

[0036] Referring to Figure 3 and Figure 4 , a circular mounting hole 23 is coaxially arranged on the top surface of the gear two 22, a limiting tube 24 is rotatably arranged in the mounting hole 23, a threaded tube 25 is rotatably arranged in the limiting tube 24, and the lead screw 11 passes through the threaded tube 25 and is in threaded transmission cooperation with the threaded tube 25. A sliding slot one 26 is symmetrically arranged on the outer circumferential surface of the limiting tube 24 along the radial direction of the limiting tube 24, and a clamping block 27 is slidably arranged in the sliding slot one 26. Two arc-shaped slots 14 are symmetrically arranged on the inner circumferential surface of the gear two 22. In this embodiment, the central angles of the two arc-shaped slots 14 are both 90°, that is, the arc-shaped slots 14 and the inner wall of the mounting hole 23 equally divide the four sides of the mounting hole 23 into four regions, and the arc-shaped slots 14 and the inner wall of the mounting hole 23 are arranged in pairs with a spacing. One end of the clamping block 27 can be inserted into the arc-shaped slot 14, and the other end can be inserted into the outer circumferential surface of the threaded tube 25.

[0037] Since the limiting tube 24 is in rotational cooperation with the threaded tube 25, the threaded tube 25 cannot be in threaded transmission cooperation with the lead screw 11 when the threaded tube 25 is in an un-limited state. The clamping block 27 can provide a limiting action for the threaded tube 25 when the clamping block 27 is inserted into the outer circumferential surface of the threaded tube 25. When the limiting tube 24 is rotated to the state that the clamping block 27 is inserted into the arc-shaped slot 14, the clamping block 27 is separated from the threaded tube 25, and at this time, the threaded tube 25 rotates with the lead screw 11, so that the lifting box 2 stops vertical movement.

[0038] With reference to Figure 3 The clamping block 27 is fixed with a guide piece 31 on both sides, and the inner wall of the sliding groove 26 is symmetrically provided with a guide groove 32, and the guide piece 31 is slidably connected with the guide groove 32 along the radial direction of the limiting tube 24. The guide piece 31 is fixed with a return spring 33 on the side away from the threaded tube 25, and the end of the return spring 33 away from the guide piece 31 is fixedly connected with the inner wall of the guide groove 32 away from the threaded tube 25.

[0039] With reference to Figure 2 The lifting cylinder 1 is fixed with a connecting cylinder 3 at the bottom, and the connecting cylinder 3 is used for setting a gyroscope 4. The gyroscope 4 includes an outer ring 41 rotatably arranged in the connecting cylinder 3 and a rotor 42 rotatably arranged in the outer ring 41. The outer ring 41 rotates around the axis of the gear 1 as the axis. The outer ring 41 is fixed with a bottom shaft 43 at the bottom of the outer circumferential surface and is fixed with a top shaft 44 at the top of the outer circumferential surface. The bottom shaft 43 is fixedly connected with the top surface of the measuring plate 12. The measuring plate 12 is a wedge-shaped block with a trapezoidal cross section. The top surface of the gear 1 is provided with a through hole 52 through which the top shaft 44 passes, and the outer circumferential surface of the top shaft 44 is fixed with a guide strip 53, and the inner wall of the through hole 52 is provided with a guide hole which is slidably connected with the guide strip 53.

[0040] The length of the narrow end of the measuring plate 12 is less than the length of the wide end. After the measuring plate 12 is immersed in water, it will rotate under the impact of water flow, and at the same time, it will drive the gear 1 to rotate, and the gear 2 will rotate to trigger the disengagement of the limiting tube 24 and the threaded tube 25. The wide end of the measuring plate 12 is fixedly connected with a floating ball 54 by a hanging line.

[0041] With reference to Figure 1 and Figure 2 The inner top surface of the lifting cylinder 1 is fixed with a screw rod 5, and the top surface of the gear 1 is fixed with a threaded column 51 which is in threaded transmission cooperation with the screw rod 5. Since the threaded column 51 and the screw rod 5 will be in threaded cooperation after the gear 1 rotates, and the gear 1 will rise, and after the gear 1 continuously rotates, the gear 1 will disengage from the gear 2 due to its rising, so that the gear 2 stops rotating. The screw rod 5 is provided with a straight rod section, and the threaded column 51 stops rising after moving to the straight rod section.

[0042] The implementation principle of the gyroscope 4 for pipeline underground water flow direction survey in the embodiment of the application is as follows:

[0043] After the screw rod 11 is lifted into the pipe, the supporting device of the screw rod 11 is arranged at the pipe opening part, and the lifting box 2 is connected to the screw rod 11. The motor connected to the end of the screw rod 11 is turned on to drive the screw rod 11 to rotate. At this time, the clamping block 27 is inserted into the threaded pipe 25, and the threaded pipe 25 is limited.

[0044] When the lifting cylinder 1 is lowered to the measuring plate 12 contacting the water surface, the measuring plate 12 rotates under the impact of the water flow, and drives the outer ring 41 of the gyroscope 4 to rotate, and the outer ring 41 drives the gear one 21 to rotate, and the gear one 21 drives the gear two 22 to rotate in the rotating process. After the gear two 22 rotates to the position where the arc-shaped groove 14 is aligned with the clamping block 27, the clamping block 27 is inserted into the arc-shaped groove 14 under the elastic force of the reset spring 33, so that the clamping block 27 is separated from the threaded pipe 25, and the threaded pipe 25 loses the limiting action and rotates with the screw rod 11, and the lifting cylinder 1 stops descending.

[0045] In the subsequent rotating process of the measuring plate 12, the gear one 21 is gradually lifted by cooperating with the screw rod 5, and the gear one 21 is lifted to be separated from the gear two 22, and the gear two 22 stops rotating.

[0046] The data recording device connected with the gyroscope 4 is also installed in the lifting cylinder 1, which is used to store the rotating data of the gyroscope 4. After the experimental measurement is completed, the screw rod 11 is pulled out from the pipe, and the lifting cylinder 1 can be recycled.

[0047] The above are the preferred embodiments of the present application, which do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A gyroscope for surveying the azimuth of groundwater flow in a pipeline, comprising a lead screw (11) and a lifting cylinder (1) threadedly engaged with the lead screw (11); the bottom end of the lifting cylinder (1) is provided with a gyroscope (4) and a measuring plate (12) for measuring water level, characterized in that: A lifting box (2) is fixed to one side of the lifting cylinder (1); a gear one (21) is rotatably installed inside the lifting cylinder (1), and a gear two (22) that meshes with the gear one (21) is rotatably installed inside the lifting box (2); a limiting tube (24) is rotatably installed inside the gear two (22), and a threaded tube (25) is rotatably installed inside the limiting tube (24), and the lead screw (11) and the threaded tube (25) are threadedly driven together; a locking block (27) is slidably installed inside the limiting tube (24) along its own radial direction; the locking block (27) can engage with the... The outer circumferential surface of the threaded tube (25) is inserted; a bottom shaft (43) is fixed at the bottom of the outer circumferential surface of the gyroscope (4), and a top shaft (44) is fixed at the top of the outer circumferential surface of the gyroscope (4); the bottom shaft (43) is fixed to the top surface of the measuring plate (12); the top shaft (44) is connected to the gear one (21), and the top surface of the gear two (22) is provided with a mounting hole (23), and the limiting tube (24) is rotatably installed in the mounting hole (23); the inner circumferential surface of the gear two (22) is provided with an arc groove (14), and one end of the locking block (27) can be connected to the arc groove. The shaped groove (14) is inserted into the limiting tube (24). A sliding groove (26) is provided on the outer circumferential surface of the limiting tube (24) along its own radial direction. The locking block (27) is slidably disposed in the sliding groove (26). A guide plate (31) is fixed on the side wall of the locking block (27). A guide groove (32) is provided on the inner wall of the sliding groove (26). The guide plate (31) is slidably connected to the guide groove (32) along the radial direction of the limiting tube (24). A return spring (33) is fixed on the side of the guide plate (31) away from the threaded tube (25). The return spring (33) is located away from the threaded tube (25). One end of the guide plate (31) is fixedly connected to the inner wall of the guide groove (32) away from the threaded tube (25). The top surface of the gear (21) is provided with a through hole (52) through which the top shaft (44) can pass. The outer circumferential surface of the top shaft (44) is fixed with a guide strip (53). The inner wall of the through hole (52) is provided with a guide hole that can slide with the guide strip (53). The inner top surface of the lifting cylinder (1) is fixed with a screw (5). The top surface of the gear (21) is fixed with a threaded column (51) that can be threadedly driven with the screw (5).

2. The gyroscope for surveying the azimuth of groundwater flow in pipelines according to claim 1, characterized in that: The lifting cylinder (1) has several rollers (13) fixedly installed on its outer periphery along the vertical direction.

3. The gyroscope for surveying the azimuth of groundwater flow in pipelines according to claim 1, characterized in that: The measuring plate (12) is a wedge-shaped block with a trapezoidal cross-section.

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