Leachate liquid level measuring device

Abstract

The utility model discloses a leachate liquid level measuring device which comprises a platform, a telescopic measuring cylinder, a liquid level measuring instrument and a clamping mechanism. The telescopic measuring cylinder comprises a first-section measuring cylinder, a middle measuring cylinder and a tail-section measuring cylinder, the first-section measuring cylinder, the middle measuring cylinder and the tail-section measuring cylinder are hollow measuring cylinders with cylindrical cavities in the middle, and the tail-section measuring cylinder is provided with a filter cover; the telescopic measuring cylinder capable of extending downwards and contracting upwards in the vertical direction is arranged, the filtering cover is arranged at the bottom of the telescopic measuring cylinder, leachate is filtered before entering the measuring cylinder, it is avoided that dirt enters the measuring cylinder to affect measurement of the device on the liquid level height, and liquid level measurement is more accurate; and the clamping assembly is arranged to fix the telescopic cylinder body, so that the device is more reasonable in overall arrangement and more stable in use.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid level measurement field, especially a kind of percolate liquid level measuring device. BACKGROUND

[0002] Percolate is a kind of liquid with high concentration of organic or inorganic components generated in the process of stacking and landfill of garbage under the seepage of precipitation and groundwater, and these percolates are collected into percolate pool, and staff need to measure the liquid level of percolate to better handle these percolates.In the prior art, the measuring head of liquid level meter is usually placed into the measured liquid through connecting line or directly measured from the liquid surface by ultrasonic liquid level meter.However, the connecting line may be bent or swung to some extent, resulting in inaccurate measurement results;And the ultrasonic liquid level meter directly measures from above the liquid surface, which may be affected by the floating dirt covering the surface of percolate pool, and the thickness of these floating dirt is measured into the height of percolate when measuring the liquid level by ultrasonic liquid level meter, so that a data deviating from the accurate value is obtained, so that the staff cannot master the real height of percolate liquid level, affecting the subsequent treatment of percolate. SUMMARY

[0003] In view of the above problems of the prior art, the technical problem to be solved by the utility model is to provide a percolate liquid level measuring device, which is provided with a telescopic measuring cylinder capable of extending downward and retracting upward in vertical direction, and a filter cover is arranged at the bottom of the telescopic measuring cylinder for filtering dirt to prevent dirt from entering the measuring cylinder and ensure the accuracy of liquid level measurement.

[0004] To solve the above technical problems, one technical scheme of the utility model is to provide a percolate liquid level measuring device, which comprises a platform, a telescopic measuring cylinder capable of extending downward and retracting upward in vertical direction arranged on the platform, a liquid level measuring instrument arranged on the telescopic measuring cylinder for measuring the liquid level of percolate, and a clamping mechanism arranged on the platform and used for clamping and fixing the telescopic measuring cylinder in retracted state;The telescopic measuring cylinder comprises a first measuring cylinder, an intermediate measuring cylinder and a last measuring cylinder which are sequentially and slidably sleeved from top to bottom, the first measuring cylinder, the intermediate measuring cylinder and the last measuring cylinder are all hollow measuring cylinders with cylindrical cavities arranged in the middle, and the bottom end of the last measuring cylinder is provided with a filter cover for filtering floating objects carried in percolate;When the telescopic measuring cylinder is in retracted state, the first measuring cylinder, the intermediate measuring cylinder and the last measuring cylinder are sleeved together from inside to outside, and when the telescopic measuring cylinder is in extended state, the upper end of the intermediate measuring cylinder and the last measuring cylinder is limited at the lower end of the previous measuring cylinder.

[0005] Further, the first section measuring cylinder has a height greater than that of the rest of the measuring cylinders, and when the telescopic measuring cylinder is in the contracted state, the first section measuring cylinder has a protruding section protruding upward from the upper end of the rest of the measuring cylinders; the platform is provided with two opposite support frames on the outer side of the telescopic measuring cylinder, and the clamping mechanism is arranged on the two support frames and can clamp the protruding section and the last section measuring cylinder of the first section measuring cylinder in the contracted state.

[0006] Further, the clamping mechanism comprises a first clamping assembly arranged on the two support frames corresponding to the position of the protruding section and a second clamping assembly arranged on the two support frames corresponding to the position of the last section measuring cylinder; the first clamping assembly and the second clamping assembly can move towards and away from each other to clamp and release the protruding section and the last section measuring cylinder, respectively.

[0007] Further, the first clamping assembly comprises two first screws respectively screwed on the two support frames, two first fixed clamps respectively arranged on one end of the two first screws close to the protruding section, and a first handle arranged on one end of the two first screws outside the corresponding support frame.

[0008] Further, the second clamping assembly comprises two second screws respectively screwed on the two support frames, two second fixed clamps respectively arranged on one end of the two second screws close to the last section measuring cylinder, and a second handle arranged on one end of the two second screws outside the corresponding support frame.

[0009] Further, the first section measuring cylinder comprises a top wall and a side ring wall arranged around the lower end edge of the top wall, the side ring wall is provided with a plurality of air holes for balancing the air pressure in the telescopic measuring cylinder, a plurality of the air holes are evenly distributed on the side ring wall with the center of the top wall as the center, and the lower end of the side ring wall is provided with an annular stopper for sealing sliding between the first section measuring cylinder and the immediately lower intermediate measuring cylinder without disengaging each other.

[0010] Further, the intermediate measuring cylinder is defined as a plurality of intermediate measuring cylinders successively slidingly sleeved from top to bottom, the upper end of each of the plurality of intermediate measuring cylinders is provided with an opening in communication with the internal cylindrical cavity thereof for the measuring cylinder located at the upper end thereof to be slidingly arranged therein, and the lower end of each of the plurality of intermediate measuring cylinders is outwardly protruding to form an outer edge for sealing sliding up and down in the cylindrical cavity of the measuring cylinder located at the lower end thereof.

[0011] Further, the lower end of the last section measuring cylinder is provided with a cylinder, the lower end of the cylinder is provided with a lower ring, the filter cover comprises an upper ring and a tapered cylinder formed by the lower end of the upper ring downwardly protruding, a plurality of filter holes are formed in the sidewall of the tapered cylinder, the inner diameter and the outer diameter of the upper ring and the lower ring are matched, and a hinge seat is jointly arranged between one side end of the upper ring and the corresponding position of the lower ring.

[0012] Further, the fixing member comprises a limiting block, one end of the limiting block is fixedly provided with a fixing screw, a plug hole matched with the outer diameter of the fixing screw is jointly formed between the upper ring and the lower ring, the fixing screw is inserted into one end of the plug hole and protrudes from the other end of the plug hole, and a nut is screwed on the end of the fixing screw protruding out of the plug hole.

[0013] Further, at least two groups of traction ropes for stretching and contracting the section measuring cylinders are further included, the force receiving ends of the at least two groups of traction ropes are connected with the outer driving part for being elongated and shortened under the action of the outer driving part, and the force applying ends of the at least two groups of traction ropes sequentially pass through the cylindrical cavities of the last section measuring cylinder and the middle section measuring cylinder from bottom to top and are fixed with the first section measuring cylinder.

[0014] The leachate liquid level measuring device has at least the following beneficial effects: the telescopic measuring cylinder capable of stretching downward and contracting upward in the vertical direction is arranged, at least two groups of traction ropes connected with the outer driving equipment are used to control the stretching and contraction of the telescopic measuring cylinder, the filter cover for filtering dirt is arranged at the bottom of the telescopic measuring cylinder, the leachate is filtered before entering the measuring cylinder, dirt floating into the device to affect the measurement of the liquid level height is avoided, the liquid level measurement data is more accurate, the clamping assembly is arranged on the platform to fix the telescopic cylinder, the overall arrangement of the device is more reasonable, and the device is more stable during use. BRIEF DESCRIPTION OF DRAWINGS

[0015] The drawings described herein are used to provide further understanding of the present application, constitute a part of the present application, the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application. In the drawings:

[0016] Figure 1 It is an embodiment of the structure of the leachate liquid level measuring device Figure 1

[0017] Figure 2 It is a partial structure diagram of A in FIG. Figure 1

[0018] Figure 3 ​​Structural schematic of an embodiment of a leachate level measuring device Figure 2 ;

[0019] Figure 4 For Figure 3 Local structural schematic of B in the middle;

[0020] Figure 5 For Figure 3 Local structural schematic of C in the middle;

[0021] Figure 6 For Figure 3 Local structural schematic of D in the middle;

[0022] Figure 7 For Figure 3 Local structural schematic of E in the middle;

[0023] Figure 8 For Figure 3 Local structural schematic of F in the middle;

[0024] Figure 9 For Figure 3 Local structural schematic of G in the middle;

[0025] Figure 10 Structural schematic of an embodiment of a leachate level measuring device Figure 3 .

[0026] The meanings of various reference numbers in the drawings are as follows:

[0027] Platform 1, through hole 11, support frame 12;

[0028] Telescopic measuring cylinder 2;

[0029] Liquid level measuring instrument 3;

[0030] Clamping mechanism 4, first clamping assembly 41, first clamping piece 41a, first screw rod 411a, first fixed clamp 412a, first handle 413a, second clamping piece 41b, second screw rod 411b, second fixed clamp 412b, second handle 413b, second clamping assembly 42, third clamping piece 42a, third screw rod 421a, third fixed clamp 422a, third handle 423a, fourth clamping piece 42b, fourth screw rod 421b, fourth fixed clamp 422b, fourth handle 423b;

[0031] Filter cover 5, upper ring 51, conical cylinder 52, hinged seat 53, fixed piece 54, limiting block 541, fixed screw rod 542, nut 543, insertion hole 544, filter hole 55;

[0032] First section measuring cylinder 6, side ring wall 61, air hole 62, first outer edge 63, first fixed part 6a, first fixed ring 61a, first through cavity 62a;

[0033] Intermediate measuring cylinder 7, first intermediate measuring cylinder 71, first cylindrical cavity 711, first inner edge 712, second outer edge 713, second fixed part 71a, second intermediate measuring cylinder 72, second cylindrical cavity 721, second inner edge 722, third outer edge 723, third fixed part 72a, fourth fixed part 72b, fourth fixed ring 721b, fourth through cavity 722b, third intermediate measuring cylinder 73, third cylindrical cavity 731, third inner edge 732, fourth outer edge 733, fifth fixed part 73a;

[0034] Last section measuring cylinder 8, fourth cylindrical cavity 81, fourth inner edge 82, cylindrical 83, lower circular ring 84, sixth fixed part 8a, seventh fixed part 8b;

[0035] Towing rope 9, knot 91. DETAILED DESCRIPTION

[0036] The utility model will be further described below with reference to the drawings.

[0037] Referring to Figure 1 The utility model discloses a leachate liquid level measuring device for erecting above the leaching pool, when the leachate liquid level in the leaching pool needs to be measured, the device part goes down into the leachate and measures, and when it does not need to be measured, it is retracted upwards. The leachate liquid level measuring device comprises a platform 1, a telescopic measuring cylinder 2 capable of extending downward and retracting upward in the vertical direction arranged on the platform 1, a liquid level measuring instrument 3 arranged on the telescopic measuring cylinder 2 and used for measuring the leachate liquid level, and a clamping mechanism 4 arranged on the platform 1 and used for clamping and fixing the telescopic measuring cylinder 2 in the retracted state, and the lower end of the telescopic measuring cylinder 2 is provided with a filter cover 5, and the platform 1 is provided with a through hole 11 for the telescopic measuring cylinder 2 to pass through.

[0038] The telescopic measuring cylinder 2 comprises a first section measuring cylinder 6, an intermediate measuring cylinder and a last section measuring cylinder 8 which are sequentially and slidably connected from top to bottom and from inside to outside, that is, the first section measuring cylinder 6 and the intermediate measuring cylinder and the last section measuring cylinder 8 are all in sliding connection. The first section measuring cylinder 6, the intermediate measuring cylinder and the last section measuring cylinder 8 are all hollow measuring cylinders provided with cylindrical cavities penetrating through the corresponding measuring cylinder along the length direction, and the diameters of the first section measuring cylinder 6, the intermediate measuring cylinder and the last section measuring cylinder 8 gradually increase from small to large, and a plurality of the measuring cylinders are connected together by at least two groups of towing ropes 9.

[0039] The first section measuring cylinder 6 comprises a top wall and a side ring wall 61 arranged around the lower end edge of the top wall, and a through hole 11 is formed in the top wall for the sound velocity incident wave of the ultrasonic liquid level measuring instrument 3 to pass through, which can be defined as being arranged concentrically with the top wall. A fixing hole for fixing the ultrasonic liquid level measuring instrument 3 is arranged around the periphery of the through hole 11 on the top wall, which can be defined as a threaded hole, a rivet hole, a clamping hole or any other hole structure that can detachably arrange the ultrasonic liquid level measuring instrument on the top wall. The side ring wall 61 is provided with a plurality of air holes 62 for balancing the air pressure in the telescopic cylinder, and a plurality of air holes 62 are uniformly distributed on the side ring wall 61 with the center of the top wall as the center. It should be understood that the position and number of the air holes 62 are not limited to the above description, and in different embodiments, the air holes 62 can be set according to different needs, so this place will not be described one by one. The lower end of the outer periphery of the side ring wall 61 is outwardly protruding to form a first outer edge 63 for the first section measuring cylinder 6 to slide sealingly with the next intermediate measuring cylinder next to its lower end without being separated from each other. The first outer edge 63 is used to block the upper end of the next intermediate measuring cylinder to prevent the next intermediate measuring cylinder from continuing to separate downward from the first section measuring cylinder 6. A first fixing part 6a is arranged on the inner wall of the side ring wall 61, which is arranged on the inner wall of the cylindrical cavity corresponding to the position of the at least two groups of traction ropes 9. In the shown embodiment, the first fixing part 6a is defined as comprising a first fixing ring 61a arranged on the inner wall of the cylindrical cavity and at least two first through cavities 62a arranged on the first fixing ring 61a corresponding to the position of the at least two groups of traction ropes 9, which penetrates the first fixing ring 61a along the length direction of the cylinder. It should be understood that the fixing part can also be defined as other structures in different embodiments, for example, at least two fixing blocks arranged on the inner wall of the cylindrical cavity corresponding to the position of each traction rope 9, and the above-mentioned through cavity can be directly arranged on the fixing block.

[0040] In the shown embodiment, the intermediate measuring cylinder is defined as a plurality of intermediate measuring cylinders, and the plurality of intermediate measuring cylinders are slidably sleeved together. For the convenience of description, the intermediate measuring cylinder sleeved with the first section measuring cylinder 6 at the uppermost end is referred to as the first intermediate measuring cylinder 71, the intermediate measuring cylinder sleeved with the last section measuring cylinder 8 at the lowermost end is referred to as the second intermediate measuring cylinder 72, and at least one intermediate measuring cylinder between the first intermediate measuring cylinder 71 and the second intermediate measuring cylinder 72 is referred to as the third intermediate measuring cylinder 73.

[0041] The first intermediate measuring cylinder 71 has a first cylindrical cavity 711 which is axially through, and the upper end of the first cylindrical cavity 711 is formed with a first inner rim 712 which is limitedly matched with the first outer rim 63, the inner diameter of the first inner rim 712 is greater than the outer diameter of the first section measuring cylinder 6, less than the outer diameter of the first outer rim 63, and less than the inner diameter of the first cylindrical cavity 711, and the outer diameter of the first outer rim 63 is less than the inner diameter of the first cylindrical cavity 711, that is, the outer diameter of the first section measuring cylinder 6 < the inner diameter of the first inner rim 712 < the outer diameter of the first outer rim 63 < the inner diameter of the first cylindrical cavity 711. When the first section measuring cylinder 6 is assembled with the first intermediate measuring cylinder 71, the first section measuring cylinder 6 can be arranged in the first cylindrical cavity 711 from bottom to top, and the first section measuring cylinder 6 has a part which is upwardly protruded from the upper end of the first intermediate measuring cylinder 71, and the lower end of the first section measuring cylinder 6 and the first outer rim 63 are limited in the first cylindrical cavity 711 by the first inner rim 712. When they are in the contracted state, the lower end of the first section measuring cylinder 6 is located at the lower end of the first intermediate measuring cylinder 71, and the upper end of the first section measuring cylinder 6 is protruded from the upper end of the first intermediate measuring cylinder 71; when they are in the expanded state, the part of the first section measuring cylinder 6 except the first outer rim 63 is upwardly exposed from the upper end of the first telescopic measuring cylinder. The lower end of the first intermediate measuring cylinder 71 is formed with a second outer rim 713 which is used for sealingly and slidably connecting the first intermediate measuring cylinder 71 with the third intermediate measuring cylinder 73 which is located immediately below the lower end of the first intermediate measuring cylinder 71, and the first intermediate measuring cylinder 71 and the third intermediate measuring cylinder 73 cannot be separated from each other. The inner circumferential wall of the first cylindrical cavity 711 is provided with a second fixing part 71a.

[0042] The second intermediate measuring cylinder 72 has a second cylindrical cavity 721 extending through in axial direction, and an upper end of the second cylindrical cavity 721 is formed with a second inner edge 722 for limiting cooperation with the third intermediate measuring cylinder 73, wherein an inner diameter of the second inner edge 722 is greater than an outer diameter of the third intermediate measuring cylinder 73 located at the upper end thereof, and is less than an inner diameter of the second cylindrical cavity 721. An outer periphery of a lower end of the second intermediate measuring cylinder 72 is outwardly protruded to form a third outer edge 723 for sealing sliding and preventing disengagement of the second intermediate measuring cylinder 72 from the terminal measuring cylinder 8. When the second intermediate measuring cylinder 72 is assembled with the terminal measuring cylinder 8, the third outer edge 723 is used to block the upper end of the terminal measuring cylinder 8 to prevent the terminal measuring cylinder 8 from continuing to disengage downwardly from the second intermediate measuring cylinder 72. A third fixing portion 72a is arranged on an inner peripheral wall of the second cylindrical cavity 721. A fourth fixing portion 72b is arranged on an outer peripheral lower end of the second intermediate measuring cylinder 72, and the fourth fixing portion 72b is arranged on an outer wall of the second intermediate measuring cylinder 72 at positions corresponding to the at least two groups of traction ropes 9. In the shown embodiment, the fourth fixing portion 72b is defined as including a fourth fixing ring 721b arranged on the outer wall of the second intermediate measuring cylinder 72, and at least two groups of fourth through cavities 722b arranged at positions corresponding to the at least two groups of traction ropes 9, wherein the fourth through cavities 722b extend through the fourth fixing ring 721b in a length direction of the telescopic cylinder. It should be understood that the fixing portion can also be defined as other structures in different embodiments, for example, at least two fixing blocks arranged on the outer wall of the second intermediate measuring cylinder 72 at positions corresponding to each traction rope 9, and the above-mentioned through cavities can be directly arranged on the fixing blocks.

[0043] The third intermediate measuring cylinder 73 has a third cylindrical cavity 731 extending through the third intermediate measuring cylinder 73 in the axial direction. The third cylindrical cavity 731 has a third inner edge 732 formed at the upper end of the third cylindrical cavity 731. The third inner edge 732 is in position limiting cooperation with a measuring cylinder positioned at the upper end of the third inner edge 732. The third inner edge 732 has an inner diameter greater than the outer diameter of a measuring cylinder positioned at the upper end of the third inner edge 732, less than the outer diameter of the inner edge of a measuring cylinder positioned at the upper end of the third inner edge 732, and less than the inner diameter of the third cylindrical cavity 731. The third inner edge 732 of the third intermediate measuring cylinder 73 positioned at the upper end has an outer diameter less than the inner diameter of the third cylindrical cavity 731 positioned at the lower end. When a measuring cylinder is assembled with the third intermediate measuring cylinder 73, the measuring cylinder positioned at the upper end of the third intermediate measuring cylinder 73 is arranged in the third cylindrical cavity 731 from the lower end to the upper end of the third intermediate measuring cylinder 73. The measuring cylinder positioned at the upper end of the third intermediate measuring cylinder 73 has a portion protruding upwardly out of the third inner edge 732 and protruding upwardly beyond the upper end of the third intermediate measuring cylinder 73. The lower end of the measuring cylinder positioned at the upper end of the third intermediate measuring cylinder 73 and the outer edge of the measuring cylinder are limited by the third inner edge 732 in the third cylindrical cavity 731. When the measuring cylinder positioned at the upper end of the third intermediate measuring cylinder 73 is in the contracted state, the lower end of the measuring cylinder positioned at the upper end of the third intermediate measuring cylinder 73 is positioned at the lower end of the third intermediate measuring cylinder 73, and the upper end of the measuring cylinder positioned at the upper end of the third intermediate measuring cylinder 73 protrudes beyond the upper end of the third intermediate measuring cylinder 73. When the measuring cylinder positioned at the upper end of the third intermediate measuring cylinder 73 is in the expanded state, the measuring cylinder positioned at the upper end of the third intermediate measuring cylinder 73 is arranged in the third intermediate measuring cylinder 73 with the exception of the outer edge of the measuring cylinder positioned at the upper end of the third intermediate measuring cylinder 73. The lower end of the third intermediate measuring cylinder 73 has a fourth outer edge 733 protruding outwardly from the outer periphery of the lower end of the third intermediate measuring cylinder 73. The fourth outer edge 733 is used to seal the upper and lower sliding connection between the third intermediate measuring cylinder 73 and a measuring cylinder positioned at the lower end of the third intermediate measuring cylinder 73 and prevent the third intermediate measuring cylinder 73 and the measuring cylinder positioned at the lower end of the third intermediate measuring cylinder 73 from being separated from each other. The third cylindrical cavity 731 has a fifth fixed portion 73a arranged on the inner periphery of the third cylindrical cavity 731.

[0044] The end section measuring cylinder 8 has a fourth cylindrical cavity 81 through it along its axial direction, and the upper end of the fourth cylindrical cavity 81 is formed with a fourth inner edge 82 which is limited by the third outer edge 723, the inner diameter of the fourth inner edge 82 is greater than the outer diameter of the second intermediate measuring cylinder 72, less than the outer diameter of the third outer edge 723, and less than the inner diameter of the fourth cylindrical cavity 81, and the outer diameter of the third outer edge 723 is less than the inner diameter of the fourth cylindrical cavity 81. When the second intermediate measuring cylinder 72 is assembled with the end section measuring cylinder 8, the second intermediate measuring cylinder 72 is arranged in the fourth cylindrical cavity 81 from bottom to top, and the second intermediate measuring cylinder 72 has a portion which penetrates the fourth inner edge 82 upwardly and protrudes upwardly at the upper end of the end section measuring cylinder 8, and the lower end of the second intermediate measuring cylinder 72 and the third outer edge 723 are limited by the fourth inner edge 82 in the fourth cylindrical cavity 81. When they are in the contracted state, the lower end of the second intermediate measuring cylinder 72 is located at the lower end of the end section measuring cylinder 8, and the upper end of the second intermediate measuring cylinder 72 protrudes at the upper end of the end section measuring cylinder 8; when they are in the expanded state, the portion of the second intermediate measuring cylinder 72 except the third outer edge 723 is exposed upwardly at the upper end of the end section measuring cylinder 8. A sixth fixing part 8a is arranged on the inner circumferential wall of the fourth cylindrical cavity 81. A seventh fixing part 8b is arranged on the outer circumferential wall of the lower end of the end section measuring cylinder 8. The lower end of the end section measuring cylinder 8 protrudes downwardly to form a cylinder 83, and the lower end of the cylinder 83 is provided with a lower annular ring 84 on which the filter cover 5 is arranged.

[0045] The structures and principles of the second fixing part 71a, the third fixing part 72a, the fifth fixing part 73a, the sixth fixing part 8a, and the first fixing part 6a are the same, and the structures and principles of the seventh fixing part 8b and the fourth fixing part 72b are the same, so they will not be described one by one here.

[0046] The filter cover 5 comprises an upper annular ring 51 and a tapered cylinder 52 formed by the lower end of the upper annular ring 51 extending downward, the inner diameter and the outer diameter of the upper annular ring 51 match the lower annular ring 84, and the cylinder 83, the lower annular ring 84, the upper annular ring 51 and the middle part of the tapered cylinder 52 are in communication. A hinge seat 53 is arranged between one side end of the upper annular ring 51 and the corresponding position of the lower annular ring 84, and the other end of the upper annular ring 51 away from the hinge seat 53 is detachably connected with the lower annular ring 84 through a fixing piece 54. The tapered cylinder 52 is provided with a plurality of filter holes 55 for filtering impurities in the leachate, a plurality of filter holes 55 are uniformly and evenly distributed on the side wall of the tapered cylinder 52 with the center of the lower annular ring 84 as the center, and a plurality of filter holes 55 are distributed from dense to sparse as the diameter of the tapered cylinder 52 increases. It should be understood that the opening position and number of the filter holes 55 are not limited to the above description, and in different embodiments, the filter holes 55 can be set according to different needs, so this place will not be described one by one.

[0047] The fixing piece 54 comprises a limiting block 541, a fixed screw 542 arranged at the end of the limiting block 541, and a nut 543 screwed on the end of the fixed screw 542. A through hole 544 is arranged between the upper annular ring 51 and the lower annular ring 84, the inner diameter of the through hole 544 matches the outer diameter of the fixed screw 542, the fixed screw 542 is arranged in the through hole 544, the fixed screw 542 extends into the through hole 544 from one end of the through hole 544 and extends out of the through hole 544 from the other end of the through hole 544, and the nut 543 is screwed on the part of the fixed screw 542 extending out of the through hole 544.

[0048] Two left and right symmetrical support frames 12 are arranged on the upper end of the platform 1, two support frames 12 are respectively arranged on the left and right sides of the telescopic measuring cylinder 2 and are oppositely arranged to form an installation space for arranging the clamping mechanism 4 between the two support frames 12.

[0049] The clamping mechanism 4 is arranged in the installation space surrounded by the two support frames 12, the clamping mechanism 4 comprises a first clamping assembly 41 for clamping the first section measuring cylinder 6 and a second clamping assembly 42 for clamping the last section measuring cylinder 8 in the contracted state, the first clamping assembly 41 and the second clamping assembly 42 can move towards each other or away from each other to clamp and release the first section measuring cylinder 6 and the last section measuring cylinder 8 respectively.

[0050] The first clamping assembly 41 is arranged on the two support frames 12 corresponding to the position of the convex section of the first segment measuring cylinder 6. The first clamping assembly 41 comprises a first clamping member 41a and a second clamping member 41b arranged on the two support frames 12 respectively, and the first clamping member 41a and the second clamping member 41b are arranged opposite to each other.

[0051] The first clamping member 41a is arranged on the upper part of the left support frame 12. The upper part of the left support frame 12 is provided with a first threaded hole, and the first clamping member 41a comprises a first screw rod 411a matched with the size of the first threaded hole and screwed into the first threaded hole, a first fixed clamp 412a arranged near one end of the first segment measuring cylinder 6 of the first screw rod 411a, and a first handle 413a arranged away from the other end of the first segment measuring cylinder 6 of the first screw rod 411a. The first fixed clamp 412a is located on the right side of the left support frame 12, and the first handle 413a is located on the left side of the left support frame 12. The second clamping member 41b is arranged on the upper part of the right support frame 12. The upper part of the right support frame 12 is provided with a second threaded hole, and the second clamping member 41b comprises a second screw rod 411b matched with the size of the first threaded hole and screwed into the first threaded hole, a second fixed clamp 412b arranged near one end of the first segment measuring cylinder 6 of the second screw rod 411b, and a second handle 413b arranged away from the other end of the first segment measuring cylinder 6 of the second screw rod 411b. The second fixed clamp 412b is located on the left side of the right support frame 12, and the second handle 413b is located on the right side of the right support frame 12. In the shown embodiment, the first fixed clamp 412a and the second fixed clamp 412b are both V-shaped and arranged opposite to each other with the openings, and the size of the openings of the first fixed clamp 412a and the second fixed clamp 412b matches the curvature of the side ring wall 61 of the first segment measuring cylinder 6.

[0052] The second clamping assembly 42 is arranged on the two support frames 12 corresponding to the position of the last segment measuring cylinder 8. The second clamping assembly 42 comprises a third clamping member 42a and a fourth clamping member 42b arranged on the two support frames 12 respectively, and the third clamping member 42a and the fourth clamping member 42b are arranged opposite to each other.

[0053] The third clamping piece 42a is arranged at the lower part of the left support frame 12. The lower part of the left support frame 12 is provided with a third threaded hole, and the third clamping piece 42a comprises a third screw rod 421a matched with the third threaded hole and screwed into the third threaded hole, a third fixed clamp 422a arranged at one end of the third screw rod 421a close to the distal measuring cylinder 8 and a third handle 423a arranged at one end of the third screw rod 421a away from the distal measuring cylinder 8, wherein the third fixed clamp 422a is arranged at the left side of the left support frame 12, and the third handle 423a is arranged at the right side of the left support frame 12. The fourth clamping piece 42b is arranged at the lower part of the right support frame 12. The lower part of the right support frame 12 is provided with a fourth threaded hole, and the fourth clamping piece 42b comprises a fourth screw rod 421b matched with the fourth threaded hole and screwed into the fourth threaded hole, a fourth fixed clamp 422b arranged at one end of the fourth screw rod 421b close to the distal measuring cylinder 8 and a fourth handle 423b arranged at one end of the fourth screw rod 421b away from the distal measuring cylinder 8, wherein the fourth fixed clamp 422b is arranged at the left side of the right support frame 12, and the fourth handle 423b is arranged at the right side of the right support frame 12. In the embodiment shown, the third fixed clamp 422a and the fourth fixed clamp 422b are both horizontally arranged V-shaped and oppositely arranged with openings, and the sizes of the openings of the third fixed clamp 422a and the fourth fixed clamp 422b are matched with the outer peripheral curvature of the distal measuring cylinder 8.

[0054] The working mode of one of the embodiments of the percolate liquid level measuring device is as follows: firstly, the two traction ropes 9 are connected with external power equipment, the force applying ends of the traction ropes 9 are sequentially threaded through the through cavities of the fourth fixed part 72b and the seventh fixed part 8b from top to bottom, are bent upwards at the lower end outside the distal measuring cylinder 8, are sequentially threaded through the sixth fixed part 8a, the third fixed part 72a, the fifth fixed part 73a, the second fixed part 71a and the first fixed part 6a from bottom to top, and are formed into a knot head 91 at the upper end of the first fixed ring 61a. In the non-use state, the traction ropes 9 are retracted by the power equipment such as a winch, the cylinder body is in a retracted state under the pulling of the traction ropes 9, at this time, the first section measuring cylinder 6, the intermediate measuring cylinder and the distal measuring cylinder 8 are sequentially sleeved from inside to outside, at this time, the first clamping piece 41a and the second clamping piece 41b are both folded towards the middle direction to clamp and fix the first section measuring cylinder 6, and the third clamping piece 42a and the fourth clamping piece 42b are also folded towards the middle direction to clamp and fix the distal measuring cylinder 8.

[0055] When the liquid level of the leachate needs to be measured, first loosen the clamping of the last section measuring cylinder 8. Rotate the third handle 423a to drive the third screw rod 421a to rotate, so that the third screw rod 421a moves in the third threaded hole relative to the left support frame 12 in the direction away from the last section measuring cylinder 8, thereby driving the third fixed clamp 422a away from the last section measuring cylinder 8. Then rotate the fourth handle 423b to drive the fourth screw rod 421b to rotate, so that the fourth screw rod 421b moves in the fourth threaded hole relative to the right support frame 12 in the direction away from the last section measuring cylinder 8, thereby driving the fourth fixed clamp 422b away from the last section measuring cylinder 8. Thus, the second clamping assembly 42 loosens the clamping of the last section measuring cylinder 8.

[0056] At this time, the external power equipment is started to release the traction rope 9. As the traction rope 9 is elongated, the cylinder gradually expands, and the upper end of the middle section measuring cylinder and the last section measuring cylinder 8 are limited to the lower end of the immediately preceding section measuring cylinder.

[0057] When the filter cover 5 extends into the leachate, the leachate sewage enters the telescopic measuring cylinder 2 from the inside of the pool liquid through the tapered cylinder 52. Since the side ring wall 61 of the first section measuring cylinder 6 is provided with a plurality of air holes 62, the telescopic measuring cylinder 2 will form a large atmospheric communication pipe under the action of balanced air resistance. Since the tapered cylinder 52 is provided with a plurality of filter holes 55, when the leachate enters the inside of the telescopic measuring cylinder 2, the floating cover layer of the sewage in the leachate will be isolated outside the telescopic measuring cylinder 2 by the tapered cylinder 52, which is effectively shielded. The liquid level of the leachate will fluctuate with the insertion of the telescopic measuring cylinder 2, but the interaction between the internal friction of the sewage and the balanced air resistance will inhibit the fluctuation of the liquid level, so that the liquid level in the telescopic measuring cylinder 2 can change with the change of the leachate pool liquid level, and at the same time, the relative stability of the liquid level can be maintained, which is convenient for subsequent liquid level measurement by the staff.

[0058] When the device is used for a period of time, the tapered cylinder 52 will adhere to a lot of dirt, which may block the filter holes 55 and affect the normal use of the device, so it needs to be cleaned in time. When cleaning is needed, the power equipment is started to wind up the traction rope 9, so that the telescopic measuring cylinder 2 is contracted to the initial state, at which time the telescopic measuring cylinder 2 as a whole is no longer located in the leachate pool. The steps of loosening the clamping of the last section measuring cylinder 8 by the second clamping assembly 42 are operated in reverse, so that the third clamping part 42a and the fourth clamping part 42b are folded towards the last section measuring cylinder 8 to clamp and fix the last section measuring cylinder 8.

[0059] At this time, rotate the nut 543 to remove it from the end of the screw rod, and then hold the limiting block 541 to pull out the screw rod from the insertion hole 544, at this time, the fixing state of the fixing part 54 to the top cone is released, the top cone is rotated and opened with the hinge point of the hinge seat 53 as the center, and the surface dirt of the top cone is cleaned with a high-pressure water gun.

[0060] Compared with the prior art, the leachate liquid level measuring device has a telescopic measuring cylinder 2 capable of stretching downward and contracting upward in the vertical direction, uses at least two groups of traction ropes 9 connected with external driving equipment to control the stretching and contraction, and is provided with a filter cover 5 for filtering dirt at the bottom of the telescopic measuring cylinder 2, so that the leachate is filtered before entering the measuring cylinder to avoid dirt floating and entering to affect the measurement of the liquid level height by the device, and the liquid level measurement data is more accurate; meanwhile, the clamping assembly is arranged on the platform 1 to fix the telescopic cylinder, so that the overall device is more reasonable and stable during use.

Claims

1. A leachate level measuring device, characterized by: The utility model provides a collapsible measuring cylinder for measuring the liquid level of leachate, which comprises a platform, a collapsible measuring cylinder arranged on the platform and capable of extending downward and retracting upward in the vertical direction, a liquid level measuring instrument arranged on the collapsible measuring cylinder and used for measuring the liquid level of leachate, and a clamping mechanism arranged on the platform and used for clamping and fixing the collapsible measuring cylinder in the retracted state.

2. The leachate level measuring device of claim 1, wherein: The collapsible measuring cylinder comprises a first measuring cylinder, an intermediate measuring cylinder and a last measuring cylinder which are sequentially and slidably sleeved from top to bottom, and the first measuring cylinder, the intermediate measuring cylinder and the last measuring cylinder are all hollow measuring cylinders with cylindrical cavities formed in the middle.

3. The leachate level measuring device of claim 2, wherein: The height of the first measuring cylinder is greater than the height of the remaining measuring cylinders, and the first measuring cylinder has a protruding section protruding upward above the upper ends of the remaining measuring cylinders when the collapsible measuring cylinder is in the retracted state.

4. The leachate level measuring device of claim 3, wherein: The platform is provided with two opposite support frames on the outer side of the collapsible measuring cylinder, and the clamping mechanism is arranged on the two support frames and capable of clamping the protruding section of the first measuring cylinder and the last measuring cylinder in the retracted state.

5. The leachate level measuring device of claim 3, wherein: The clamping mechanism comprises a first clamping assembly arranged on the two support frames at positions corresponding to the protruding section and a second clamping assembly arranged on the two support frames at positions corresponding to the last measuring cylinder.

6. The leachate level measuring device of claim 1, wherein: The first clamping assembly comprises two first screws respectively screwed on the two support frames, two first fixed clamps respectively arranged on the two first screws at one end close to the protruding section, and a first handle arranged on one end of the two first screws outside the corresponding support frame.

7. The leachate level measuring device of claim 6, wherein: The second clamping assembly comprises two second screws respectively screwed on the two support frames, two second fixed clamps respectively arranged on the two second screws at one end close to the last measuring cylinder, and a second handle arranged on one end of the two second screws outside the corresponding support frame. The first measuring cylinder comprises a top wall and a side ring wall arranged around the lower end edge of the top wall, and the side ring wall is provided with a plurality of air holes for balancing the air pressure in the collapsible measuring cylinder. The intermediate measuring cylinder is defined as a plurality of intermediate measuring cylinders which are sequentially and slidably sleeved from top to bottom, and the upper end of each intermediate measuring cylinder is provided with an opening in communication with the internal cylindrical cavity thereof for the measuring cylinder located at the upper end to be slidably arranged therein. The intermediate measuring cylinder is defined as a plurality of intermediate measuring cylinders which are sequentially and slidably sleeved from top to bottom, and the upper end of each intermediate measuring cylinder is provided with an opening in communication with the internal cylindrical cavity thereof for the measuring cylinder located at the upper end to be slidably arranged therein, The lower end of each of the intermediate measuring cylinders is outwardly convex to form an outer edge for sliding up and down in the cylindrical cavity of the measuring cylinder located below it.

8. The leachate level measuring device of claim 1, wherein: The lower end of the terminal measuring cylinder is provided with a cylinder, the lower end of the cylinder is provided with a lower ring, the filter cover comprises an upper ring and a tapered cylinder formed by the lower end of the upper ring downwardly convex, the side wall of the tapered cylinder is provided with a plurality of filter holes, the inner diameter and the outer diameter of the upper ring and the lower ring are matched, and a hinge seat is jointly arranged between one side end of the upper ring and the corresponding position of the lower ring, the other end of the upper ring away from the hinge seat is detachably connected with the lower ring through a fixing member.

9. The leachate level measuring device of claim 8, wherein: The fixing member comprises a limiting block, one end of the limiting block is fixedly provided with a fixing screw, a plug hole matched with the outer diameter of the fixing screw is jointly arranged between the upper ring and the lower ring, the fixing screw is inserted into one end of the plug hole and protrudes from the other end of the plug hole, and a nut is screwed on the end of the fixing screw protruding out of the plug hole.

10. The leachate level measuring device of any one of claims 1 to 9, wherein: At least two groups of traction ropes are further included for stretching and contracting the measuring cylinders, the force receiving ends of the at least two groups of traction ropes are connected with the outer driving part for being elongated and shortened under the action of the outer driving part, and the force applying ends of the at least two groups of traction ropes pass through the cylindrical cavities of the terminal measuring cylinder and the intermediate measuring cylinders in sequence from bottom to top and are then fixed with the first measuring cylinder.

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