Liquid level meter applied to mine tunnel filling

Abstract

The invention relates to the technical field of liquid level measurement, and provides a liquid level meter applied to mine tunnel filling, which comprises a resistance-type liquid level sensor, a driving module, a telescopic mechanism, a turnover mechanism and a framework assembly, the telescopic mechanism comprises a base and a threaded rod, the base is in threaded connection with the threaded rod, the resistance-type liquid level sensor is fixedly connected with the base, and the turnover mechanism is fixedly connected with the framework assembly. The turnover mechanism comprises a sealing cover, a transmission rod, a rotating shaft and a second transmission gear, the rotating shaft is fixedly connected with the sealing cover, the driving module, the threaded rod and the transmission rod are connected in the sealing cover, the second transmission gear is fixedly connected with the transmission rod, and the driving module is used for controlling the threaded rod and the transmission rod to rotate; the fixed gear is fixedly connected with the pipe sleeve, the rotating shaft is rotatably connected in the pipe sleeve, and the second transmission gear is in transmission connection with the fixed gear. The device has the characteristics that the device can be conveniently placed in a mine tunnel, and the position of the probe can be conveniently adjusted for correction and calibration.

Description

Technical Field

[0001] The invention relates to the technical field of liquid level measurement, and in particular to a liquid level meter used for mine tunnel filling. Background Art

[0002] The liquid level meter used for mine tunnel concrete filling is usually used to monitor and control the liquid level during the concrete pouring process to ensure the filling effect and quality of the concrete. Since the installation angle of the resistive liquid level meter is relatively flexible, within a certain standard range, it can ensure that the electrode can effectively contact the liquid, so it is suitable for liquid level measurement inside mine tunnels with complex terrain.

[0003] Reference Fig. 9 Due to the terrain restrictions around the mine tunnel, especially when the mine tunnel is located in the mountain, it is impossible to directly open the concrete delivery channel and the liquid level meter installation channel from the top of the mine tunnel. Therefore, it is generally only possible to fill the mine tunnel with concrete and install the liquid level meter in the form of an elbow pipe. Although the installation angle of the resistance type liquid level meter is relatively flexible, considering the accuracy of the liquid level measurement, the installation angle of the resistance type liquid level meter should be perpendicular to the liquid surface of the concrete filling liquid. The existing resistance type liquid level meter has a relatively simple structure and cannot be extended into the mine tunnel through a narrow elbow pipe or mine tunnel entrance, nor can it be corrected and calibrated inside the mine tunnel, so it cannot meet the liquid level accuracy measurement during the concrete filling process inside the mine tunnel. Summary of the invention

[0004] The object of the present invention is to provide a liquid level meter used for mine tunnel filling, aiming to solve the problems existing in the existing resistance type liquid level meter.

[0005] To achieve the above object, the present invention provides the following technical solution: a liquid level meter used for mine tunnel filling, comprising a resistive liquid level sensor and a drive module, and further comprising: A telescopic mechanism, the telescopic mechanism comprising a base and a threaded rod, the base is threadedly connected to the threaded rod, and the resistive liquid level sensor is fixedly connected to the base; A flip mechanism, the flip mechanism comprising a sealing cover, a transmission rod, a rotating shaft and a second transmission gear, the rotating shaft is fixedly connected to the sealing cover, the driving module, the threaded rod and the transmission rod are connected in the sealing cover, the second transmission gear is fixedly connected to the transmission rod, and the driving module is used to control the rotation of the threaded rod and the transmission rod respectively; The skeleton assembly includes a V-shaped frame, a pipe sleeve and a fixed gear. The pipe sleeve is fixedly connected to the V-shaped frame, the fixed gear is fixedly connected to the pipe sleeve, the rotating shaft is rotatably connected in the pipe sleeve, and the second transmission gear is transmission-connected to the fixed gear.

[0006] As a further solution of the present invention, the telescopic mechanism further includes a first transmission gear, a first worm, a toothed disc, a first worm gear, a second worm and a driven gear. The first transmission gear and the first worm gear are respectively fixedly connected to the threaded rod and the toothed disc. The first worm, the second worm and the toothed disc are all connected to the sealing cover. Driven gears are fixedly connected to the surfaces of the first worm and the second worm. The first worm is in transmission connection with the first worm gear, the first transmission gear is in transmission connection with the toothed disc, and the two driven gears are both in transmission connection with the driving module.

[0007] As a further solution of the present invention, the driving module includes a driving motor, a driving shaft, a driving gear, an electromagnetic component and a spring. The driving shaft is connected to the driving motor. The electromagnetic component and the driving motor are both connected to the sealing cover. The driving gear is connected to the surface of the driving shaft. The two driven gears are both in transmission connection with the driving gear. The spring is connected between the driving gear and the electromagnetic component.

[0008] As a further solution of the present invention, the flipping mechanism further includes a second worm gear, an angle sensor, heat dissipation holes and a cleaning member. Heat dissipation holes are provided on the surface of the sealing cover. The transmission rod is fixedly connected to the second worm gear. The second worm is in transmission connection with the second worm gear. An angle sensor is connected to the surface of the rotating shaft. The cleaning member is connected to one end of the sealing cover背离 the transmission rod.

[0009] As a further solution of the present invention, the telescopic mechanism further includes an angle correction module and a displacement sensor. The angle correction module and the displacement sensor are connected to the surface of the base. The resistive liquid level sensor is threadedly connected to the angle correction module.

[0010] As a further solution of the present invention, the skeleton assembly further includes a rod body and a limiting hole. The rod body is fixedly connected to the C-shaped frame. Limiting holes are provided on the surface of the rod body.

[0011] As a further solution of the present invention, it further includes a bracket. Limiting grooves are provided on the surface of the bracket. A locking bolt and an anchor bolt are threadedly connected to the inner and outer sides of the limiting groove respectively. The locking bolt passes through the limiting hole to fix the rod body in the limiting groove.

[0012] The beneficial effects of the present invention: On the one hand, by means of the angle of the resistive liquid level sensor, it is convenient for the resistive liquid level sensor to extend into the mine tunnel from the narrow mine tunnel entrance, and the telescopic length of the measurement probe can also be adjusted along the extension direction of the mine tunnel for calibrating and calibrating the measurement position of the resistive liquid level sensor to ensure the accuracy of the measurement of the liquid surface of the concrete filling liquid. It has the characteristics of being easy to put into the mine tunnel and easy to adjust the probe position for calibration and calibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a perspective view of the present invention.

[0014] Figure 2 It is an exploded view of the present invention.

[0015] Figure 3 It is a three-dimensional diagram of the telescopic mechanism according to an embodiment of the present invention.

[0016] Figure 4 The figure is a schematic diagram of the disassembly of the resistive liquid level sensor and the angle correction module according to an embodiment of the present invention.

[0017] Figure 5 It is a cross-sectional view of the flipping mechanism according to an embodiment of the present invention.

[0018] Figure 6 It is an assembly diagram of the telescopic mechanism, the driving module, the flipping mechanism and the resistive liquid level sensor according to an embodiment of the present invention.

[0019] Figure 7 For the present invention Figure 6 A partial enlarged view of point a in the middle.

[0020] Figure 8 It is an assembly diagram of the shaped frame and the turning mechanism according to an embodiment of the present invention.

[0021] Fig. 9 It is a schematic plan view of the present invention for measuring the liquid level height of concrete filling liquid in a mine tunnel area.

[0022] Reference numerals: 1 - resistive liquid level sensor; 2- telescopic mechanism, 21- base, 22- threaded rod, 221- first transmission gear, 23- first worm, 24- toothed disc, 241- first worm wheel, 25- second worm, 26- driven gear, 27- angle correction module, 28- displacement sensor; 3-driving module, 31-driving motor, 32-driving shaft, 33-driving gear, 34-electromagnetic component, 35-spring; 4- flip mechanism, 41- sealing cover, 42- rotating shaft, 43- transmission rod, 44- second worm gear, 45- second transmission gear, 46- cleaning part, 47- angle sensor, 48- heat dissipation hole; 5-skeleton assembly, 51-rod body, 511-limiting hole, 52-shaped frame, 53-tube sleeve, 54-fixed gear; 6-bracket, 61-limiting groove, 62-locking bolt, 63-anchor bolt; 7-elbow pipe, 8-mine tunnel area, 9-grouting pipe. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0024] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0025] See also Figures 1 to 9 In one embodiment of the present invention, a liquid level meter used for mine tunnel filling includes a resistive liquid level sensor 1 and a driving module 3, and further includes: The telescopic mechanism 2 includes a base 21 and a threaded rod 22, the base 21 is threadedly connected to the threaded rod 22, and the resistive liquid level sensor 1 is fixedly connected to the base 21; The flip mechanism 4 includes a sealing cover 41, a transmission rod 43, a rotating shaft 42 and a second transmission gear 45. The rotating shaft 42 is fixedly connected to the sealing cover 41. The driving module 3, the threaded rod 22 and the transmission rod 43 are connected in the sealing cover 41. The second transmission gear 45 is fixedly connected to the transmission rod 43. The driving module 3 is used to control the rotation of the threaded rod 22 and the transmission rod 43 respectively. The skeleton assembly 5 includes a V-shaped frame 52, a pipe sleeve 53 and a fixed gear 54. The pipe sleeve 53 is fixedly connected to the V-shaped frame 52, the fixed gear 54 is fixedly connected to the pipe sleeve 53, the rotating shaft 42 is rotatably connected in the pipe sleeve 53, and the second transmission gear 45 is transmission-connected to the fixed gear 54.

[0026] See also Figure 1 , Figure 3 and Figure 7 Furthermore, the telescopic mechanism 2 also includes a first transmission gear 221, a first worm 23, a toothed disc 24, a first worm wheel 241, a second worm 25 and a driven gear 26. The first transmission gear 221 and the first worm wheel 241 are fixedly connected to the threaded rod 22 and the toothed disc 24 respectively. The first worm 23, the second worm 25 and the teeth are all connected to the sealing cover 41. The surfaces of the first worm 23 and the second worm 25 are fixedly connected with the driven gear 26. The first worm 23 is transmission-connected to the first worm wheel 241. The first transmission gear 221 is transmission-connected to the toothed disc 24. The two driven gears 26 are both transmission-connected to the driving module 3.

[0027] See also Figure 1 , Figure 5 , Figures 6 to 8Further, the flip mechanism 4 also includes a second worm gear 44, an angle sensor 47, a heat dissipation hole 48 and a cleaning piece 46. The surface of the sealing cover 41 is provided with a heat dissipation hole 48. The transmission rod 43 is fixedly connected to the second worm gear 44. The second worm 25 is transmission-connected to the second worm gear 44. The surface of the rotating shaft 42 is connected with an angle sensor 47. The cleaning piece 46 is connected to the end of the sealing cover 41 away from the transmission rod 43. The cleaning piece 46 is a flexible cleaning ring for cleaning the concrete slurry on the surface of the resistive liquid level sensor 1. The angle sensor 47 is used to monitor the rotation angle of the sealing cover 41 and the resistive liquid level sensor in real time, and is used to ensure that the axis of the resistive liquid level sensor 1 is parallel to the axis of the elbow pipe 7. The heat generated when the driving module 3 is working is dissipated through the heat dissipation hole 48. A camera module can also be installed at the sealing cover 41 to collect pictures at the corner of the elbow pipe 7, and to assist the displacement sensor 28 in monitoring whether the resistive liquid level sensor 1 reaches the corner of the elbow pipe 7.

[0028] In an embodiment of the present invention, the telescopic mechanism 2 also includes an angle correction module 27 and a displacement sensor 28. The angle correction module 27 and the displacement sensor 28 are connected to the surface of the base 21. The resistive liquid level sensor 1 is threadedly connected to the angle correction module 27. The specific structure of the angle correction module 27 is not repeated here.

[0029] See also Figure 7 In one embodiment of the present invention, the driving module 3 includes a driving motor 31, a driving shaft 32, a driving gear 33, an electromagnetic component 34 and a spring 35. The driving shaft 32 is connected to the driving motor 31. The electromagnetic component 34 and the driving motor 31 are both connected to the sealing cover 41. The driving gear 33 is connected to the surface of the driving shaft 32. The two driven gears 26 are both transmission-connected to the driving gear 33. The spring 35 is connected between the driving gear 33 and the electromagnetic component 34.

[0030] In an embodiment of the present invention, a key strip is provided on the surface of the driving shaft 32, a limit block is provided at the end of the driving shaft 32, a driving gear 33 is movably sleeved on the surfaces of the driving shaft 32 and the key strip, the electromagnetic component 34 includes an electromagnet and a fixing ring, the electromagnet is embedded in the surface of the fixing ring, a magnetic ring is embedded on the surface of the driving gear 33, a spring 35 is connected to the surface of the fixing ring and the driving gear 33, when the electromagnet is energized, the electromagnet is magnetically fitted with the magnetic ring, the driving gear 33 moves to a position where it is transmission-connected with the driven gear 26 on the surface of the first worm 23, at this time the driving module 3 is used to control the rotation of the threaded rod 22, when the electromagnet is powered off, the elastic force of the spring 35 drives the driving gear 33 to move to a position where it is fitted with the limit block, at this time the driven gear 26 on the surface of the second worm 25 is transmission-connected with the driving gear 33, and the driving module 3 is used to control the rotation of the transmission rod 43.

[0031] See also Figure 1 and Figure 8 , in an embodiment of the present invention, the framework assembly 5 further includes a rod body 51 and a limiting hole 511. The rod body 51 is fixedly connected to the U-shaped frame 52, and the limiting hole 511 is arranged on the surface of the rod body 51.

[0032] Please refer to Figure 1 and Figure 8 , further, it also includes a bracket 6. A limiting groove 61 is arranged on the surface of the bracket 6. A locking bolt 62 and an anchor bolt 63 are respectively threadedly connected to the inner and outer sides of the limiting groove 61. The locking bolt 62 passes through the limiting hole 511 to fix the rod body 51 in the limiting groove 61.

[0033] In the embodiment of the present invention, the installation sequence of the bracket 6 and the elbow pipe 7 is not limited. After the elbow pipe 7 can be pre-buried above the mine roadway area 8, the bracket 6 can be installed in the elbow pipe 7 by using the anchor bolt 63, or the bracket 6 can be installed in the elbow pipe 7 by using the anchor bolt 63 first, and then the elbow pipe 7 can be pre-buried above the mine roadway area 8. When the rod body 51 and the bracket 6 are installed, the rod body 51 can be directly placed into the limiting groove 61 from one side, and then the locking bolt 62 is passed through the limiting hole 511 and threadedly connected to the bracket 6. When the locking bolt 62 does not fit with the rod body 51, the rod body 51 and the resistive liquid level sensor 1 can be moved through the handle at the end of the rod body 51.

[0034] Working principle: First, bury the grouting pipe 9 and the elbow pipe 7 above the mine tunnel area 8. The specific construction specifications are not repeated here. It is necessary to ensure that the connection between the grouting pipe 9 and the mine tunnel area 8 and the connection between the elbow pipe 7 and the mine tunnel area 8 are as close to the same horizontal plane as possible. Then, use the anchor bolt 63 to install the bracket 6 on the elbow pipe 7 or the mine tunnel surface. Then, put the rod body 51 into the limit groove 61 from one side, and use the handle at the end of the rod body 51 to adjust the position of the resistive liquid level sensor 1. When the displacement sensor 28 detects that the resistive liquid level sensor 1 reaches the corner of the elbow pipe 7, then use the drive module 3 to control the second worm 25, the second worm gear 44, the transmission rod 43 and the second transmission gear 45 to rotate. The rotating second transmission gear 45 controls the sealing cover 41 to rotate with the rotating shaft 42 as the axis through a transmission connection with the fixed gear 54 until the axis of the sealing cover 41 or the resistive liquid level sensor 1 is parallel to the axis of the elbow pipe 7. The first worm 23, the first worm wheel 241, the toothed disc 24, the first transmission gear 221 and the threaded rod 22 are controlled to rotate by the driving module 3. The rotating threaded rod 22 extends the resistive liquid level sensor 1 from the sealing cover 41 by a certain distance through the threaded connection with the base 21. The displacement sensor 28 is used to correct and calibrate the measurement position of the resistive liquid level sensor 1 to ensure the accuracy of the concrete filling liquid level measurement. After the position of the resistive liquid level sensor 1 is adjusted by moving the rod body 51 up and down, the rod body 51 is fixed in the limit groove 61 by the locking bolt 62, and then the concrete filling liquid is injected into the mine tunnel area 8 through the grouting pipe 9. When the rising concrete filling liquid submerges the electrode ring on the surface of the resistive liquid level sensor 1, the number of electrodes immersed in the liquid will change, resulting in a change in the resistance value between the electrodes. Therefore, the liquid level height can be measured by measuring the resistance value.

[0035] After the measurement is completed, the resistive liquid level sensor 1 is first retracted into the sealing cover 41 using the above operation method. During this process, the cleaning member 46 can automatically clean the concrete slurry on the surface of the resistive liquid level sensor 1 to prevent the electrode ring from being damaged and affecting the measurement after the concrete solidifies. Then, the sealing cover 41 is rotated using the above method so that it can be smoothly removed from the elbow pipe 7.

[0036] To summarize, the present application utilizes a structural design in which the telescopic mechanism 2, the flipping mechanism 4 and the skeleton assembly 5 cooperate with each other. On the one hand, the angle of the resistive liquid level sensor 1 is used to facilitate the resistive liquid level sensor 1 to extend from the narrow mine tunnel entrance into the interior of the mine tunnel. The telescopic length of the measuring probe can also be adjusted along the extension direction of the mine tunnel to correct and calibrate the measuring position of the resistive liquid level sensor 1 to ensure the accuracy of the measurement of the concrete filling liquid level. The sensor has the characteristics of being easy to place in the mine tunnel and easy to adjust the probe position for correction and calibration.

[0037] For those skilled in the art, although several embodiments and examples of the present invention have been described, these embodiments and examples are provided as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in various other ways, and various omissions, substitutions, and changes can be made without departing from the scope of the main purpose of the invention.

[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A liquid level meter used for filling a mine tunnel, comprising a resistive liquid level sensor (1) and a drive module (3), characterized in that: It further includes: A telescopic mechanism (2), the telescopic mechanism (2) includes a base (21) and a threaded rod (22), the base (21) is threadedly connected to the threaded rod (22), and the resistive liquid level sensor (1) is fixedly connected to the base (21); A flipping mechanism (4), the flipping mechanism (4) includes a sealing cover (41), a transmission rod (43), a rotating shaft (42) and a second transmission gear (45), the rotating shaft (42) is fixedly connected to the sealing cover (41), the driving module (3), the threaded rod (22) and the transmission rod (43) are connected inside the sealing cover (41), the second transmission gear (45) is fixedly connected to the transmission rod (43), and the driving module (3) is used to respectively control the rotation of the threaded rod (22) and the transmission rod (43); A frame assembly (5), the frame assembly (5) includes a C-shaped frame (52), a pipe sleeve (53) and a fixed gear (54), the pipe sleeve (53) is fixedly connected to the C-shaped frame (52), the fixed gear (54) is fixedly connected to the pipe sleeve (53), the rotating shaft (42) is rotatably connected inside the pipe sleeve (53), and the second transmission gear (45) is in transmission connection with the fixed gear (54).

2. A liquid level meter used for mine tunnel filling according to claim 1, characterized in that: The telescopic mechanism (2) further includes a first transmission gear (221), a first worm (23), a tooth disc (24), a first worm gear (241), a second worm (25) and a driven gear (26), the first transmission gear (221) and the first worm gear (241) are respectively fixedly connected to the threaded rod (22) and the tooth disc (24), the first worm (23), the second worm (25) and the teeth are all connected to the sealing cover (41), driven gears (26) are fixedly connected to the surfaces of the first worm (23) and the second worm (25), the first worm (23) is in transmission connection with the first worm gear (241), the first transmission gear (221) is in transmission connection with the tooth disc (24), and the two driven gears (26) are both in transmission connection with the driving module (3).

3. A liquid level meter used for mine tunnel filling according to claim 2, characterized in that: The driving module (3) includes a driving motor (31), a driving shaft (32), a driving gear (33), an electromagnetic component (34) and a spring (35), the driving shaft (32) is connected to the driving motor (31), the electromagnetic component (34) and the driving motor (31) are both connected to the sealing cover (41), the driving gear (33) is connected to the surface of the driving shaft (32), the two driven gears (26) are both in transmission connection with the driving gear (33), and the spring (35) is connected between the driving gear (33) and the electromagnetic component (34).

4. A liquid level meter for mine tunnel filling according to claim 3, characterized in that: The flipping mechanism (4) further includes a second worm gear (44), an angle sensor (47), a heat dissipation hole (48) and a cleaning member (46), heat dissipation holes (48) are provided on the surface of the sealing cover (41), the transmission rod (43) is fixedly connected to the second worm gear (44), the second worm (25) is in transmission connection with the second worm gear (44), an angle sensor (47) is connected to the surface of the rotating shaft (42), and the cleaning member (46) is connected to one end of the sealing cover (41)背离 the transmission rod (43).

5. A liquid level meter for mine tunnel filling according to claim 4, characterized in that: The telescopic mechanism (2) further comprises an angle correction module (27) and a displacement sensor (28); the angle correction module (27) and the displacement sensor (28) are connected to the surface of the base (21); and the resistive liquid level sensor (1) is threadedly connected to the angle correction module (27).

6. A liquid level meter for mine tunnel filling according to claim 1, characterized in that: The skeleton assembly (5) further comprises a rod body (51) and a limiting hole (511); the rod body (51) is fixedly connected to the shaped frame (52); and the limiting hole (511) is arranged on the surface of the rod body (51).

7. A liquid level meter for mine tunnel filling according to claim 6, characterized in that: The bracket (6) is also comprised of a bracket (6), a limiting groove (61) being arranged on the surface of the bracket (6), a locking bolt (62) and an anchor bolt (63) being threadedly connected to the inner and outer sides of the limiting groove (61), respectively, and the locking bolt (62) passes through the limiting hole (511) to fix the rod body (51) in the limiting groove (61).

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