A mobile road measuring device
By designing a cleaning plate device that uses wire wire pulling power transmission, the wear problem caused by long-term contact of cleaning structures in traditional measuring devices is solved, and more efficient cleaning and longer equipment life is achieved.
Patent Information
- Application Number
- CN202410776270.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2044-06-17
AI Technical Summary
In traditional highway measurement devices, the brush cleaning structure is cleaned for a long time with the measuring wheel, resulting in excessive wear of the measuring wheel and the cleaning structure.
A road moving measurement device is designed, and its cleaning board slides forward through the wire pulling power transmission to clean with the measuring wheel, and is only cleaned when needed to avoid long-term contact.
It effectively avoids excessive wear of the measuring wheel and cleaning structure, extends the service life of the equipment, and improves the working efficiency of the measuring device.
Smart Images

Figure CN118746312B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of highway construction measurement devices, and in particular to a highway mobile measurement device. Background Art
[0002] With the rapid development of my country's infrastructure construction, the demand for highway construction, maintenance, management and planning is growing, and accurate and efficient measurement technology has become one of the key factors to improve work efficiency and quality. Traditional highway measurement methods, such as manual measurement and static GPS measurement, have limitations such as low efficiency, high cost and great environmental impact. Especially in long-distance measurement, road wear assessment, traffic flow statistics, etc., traditional methods are difficult to meet the high-precision and real-time requirements of modern engineering.
[0003] In recent years, wheeled distance meters, as a new type of mobile measurement technology, have been widely used in the highway field due to their easy operation, flexible mobility, and strong real-time performance. These devices usually directly calculate the travel distance based on the number of rotations of the wheel encoder or measuring wheel, and have high measurement accuracy and reliability.
[0004] The measuring wheels of wheeled highway construction measuring devices are prone to accumulate dust, mud and other foreign matter during long-term operation, which will indirectly expand the diameter or circumference of the measuring wheel and affect the measurement accuracy. In order to facilitate the cleaning of sticky and accumulated foreign matter on the measuring wheel, existing measuring devices are mostly equipped with a structure for brushing and cleaning the measuring wheel. However, these brushing and cleaning structures are mostly set to be in contact with the measuring wheel for long-term cleaning. Although this can clean the measuring wheel in real time, it will cause excessive wear to the measuring wheel and the brushing and cleaning structure. Summary of the invention
[0005] In view of this, the present invention provides a highway mobile measuring device to solve the problem that the brush cleaning structure is mostly set to be in contact with the measuring wheel for long-term cleaning. Although this can clean the measuring wheel in real time, it will cause excessive wear to the measuring wheel and the brush cleaning structure.
[0006] The technical solution proposed by the present invention is: a highway mobile measuring device, specifically comprising: a frame and a measuring wheel; the frame as a whole is composed of two L-shaped main body struts and a wheel axle welded between the bottom ends of the two L-shaped main body struts;
[0007] The wheel axle is rotatably mounted with four measuring wheels arranged at equal intervals; two cross brace mounting blocks are symmetrically welded to the bottom side of the two L-shaped main body support rods, and two bent mounting plates are symmetrically welded to the rear sides of the two cross brace mounting blocks, and cleaning plates are slidably mounted on the two bent mounting plates through spring pushing, and a wire brush is arranged on the front side of the cleaning plate, and a U-shaped sliding frame is welded on the rear side; under normal conditions, the cleaning plate slides backward to keep separated from the four measuring wheels, and when the cleaning plate slides forward, the wire brush rubs against the four measuring wheels to clean the four measuring wheels;
[0008] Two positioning sleeves are symmetrically welded to the head ends of the two L-shaped main body support rods, and a U-shaped driving frame is slidably installed on the two positioning sleeves. Two steel wire pull wires are symmetrically connected between the U-shaped driving frame and the U-shaped sliding frame.
[0009] Furthermore,
[0010] The left and right side rods of the U-shaped sliding frame are pushed by springs to slide through the bottom ends of the vertical parts of the two bent mounting plates, and the tail ends of the steel wires are fixedly connected to the rear ends of the left and right side rods of the U-shaped sliding frame;
[0011] A handle is welded between the head ends of the two L-shaped main body support rods.
[0012] Furthermore,
[0013] The left and right side rods of the U-shaped driving frame are correspondingly slidably matched with two positioning sleeves, and the tail end of the steel wire is fixedly connected with the head end of the left and right side rods of the U-shaped driving frame.
[0014] Furthermore,
[0015] Two rows of threading rings are welded on the two bent mounting plates, the two cross brace mounting blocks and the two L-shaped main body support rods. The threading rings are arranged along the curved connection path formed by the welding combination of the bent mounting plates, the cross brace mounting blocks and the L-shaped main body support rods, and the steel wire pull wires are threaded through a row of threading rings in sequence.
[0016] Furthermore,
[0017] A forward-supporting longitudinal support rack is welded to the right end of the transverse support side rod of the U-shaped driving frame, and a transverse support mounting rod is welded between two positioning sleeves. A Z-shaped rocker is rotatably installed on the transverse support mounting rod near the longitudinal support rack, and an incomplete gear is mounted on the bottom shaft section of the Z-shaped rocker, which meshes with the longitudinal support rack for transmission.
[0018] Furthermore,
[0019] A transverse mounting plate is rotatably mounted between the two transverse support mounting blocks, and four proximity sensors are fastened and hoisted on the bottom of the transverse mounting plate in a bilaterally symmetrical manner with threads;
[0020] An arc-shaped trigger plate is welded at each of the four locations on the measuring wheel close to the outer circumference, and the arc-shaped trigger plate is used to approach and trigger the proximity sensor.
[0021] Furthermore,
[0022] The left end of the transverse mounting plate is slidably mounted with an insertion shaft through a spring push, and a positioning ear block is welded at the head end of the left transverse mounting plate, and the head end protruding part of the insertion shaft is plugged into and matched with the positioning ear block.
[0023] Furthermore,
[0024] The outer thread of the head end of the L-shaped main support rod on the left side is fastened with a measurement controller, and four proximity sensors are electrically connected to the measurement controller.
[0025] The present invention provides a road mobile measurement device, which has the following beneficial effects:
[0026] When the present invention is in use, through the transmission of power from two steel wire pull lines, the backward sliding U-shaped driving frame can pull and drive the cleaning plate and the steel wire brush to slide forward and contact the measuring wheels at four locations, so as to brush and clean the foreign matter and debris stuck to and accumulated on the measuring wheels at four locations, and when normally idle, the cleaning plate remains separated from the measuring wheels at four locations, and can slide forward to contact the measuring wheels for cleaning only when needed. Compared with the prior art in which the brushing cleaning structure is set to be in long-term contact and cleaning with the measuring wheels, this can avoid excessive wear between the measuring wheels and the brushing cleaning structure, and help to indirectly extend the service life of the measuring wheels and the brushing cleaning structure.
[0027] In addition, the U-shaped sliding frame is arranged close to the handlebar, which makes it convenient for the hand to hold the handlebar to push the measuring device for driving, and at the same time pull back to drive the U-shaped sliding frame, so that during the process of pushing the measuring device for measurement, the cleaning plate can be driven at any time to clean the measuring wheel without stopping the machine and does not occupy the normal and effective operating time of the measuring device, which helps to indirectly improve the working efficiency of the measuring device.
[0028] In addition, by using an incomplete gear in conjunction with a spring on the U-shaped sliding frame, the Z-shaped rocker can rotate and engage to drive the longitudinal support rack and the U-shaped driving frame to slide back and forth, thereby controlling the cleaning plate to slide back and forth and vibrate, and performing impact vibration cleaning on the impurities attached to and stored on the wire brush. The mechanism for driving the cleaning plate to perform vibration cleaning and the mechanism for driving the cleaning plate to move forward to clean the measuring wheel are both power transmission mechanisms composed of a wire pull line and a U-shaped driving frame. This allows the power transmission mechanism to have a dual-purpose use effect, and can eliminate the need to configure two sets of power transmission mechanisms for the forward cleaning action and the impact vibration action of the cleaning plate, respectively, which helps to simplify the overall structure and cost of the measuring device. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.
[0030] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.
[0031] In the attached picture:
[0032] Figure 1 The overall rear side structure schematic diagram of the present invention is shown;
[0033] Figure 2 The overall front side structural schematic diagram of the present invention is shown;
[0034] Figure 3 A schematic diagram of the overall front bottom structure of the present invention is shown;
[0035] Figure 4 A schematic diagram showing a disassembled state of the transverse mounting plate of the present invention is shown;
[0036] Figure 5 A schematic diagram showing a disassembled state of the U-shaped sliding frame of the present invention is shown;
[0037] Figure 6 A schematic diagram of the bottom structure of the transverse mounting plate of the present invention is shown;
[0038] Figure 7 A schematic diagram of the structure of the U-shaped driving frame of the present invention is shown;
[0039] Figure 8 A schematic diagram of the cleaning plate structure of the present invention is shown;
[0040] Reference numerals list
[0041] 1.1, frame; 101, axle; 102, handlebar; 103, cross brace mounting block; 1031, positioning ear block; 104, bending mounting plate; 105, positioning sleeve; 106, shaped driving frame; 1061, longitudinal brace rack; 107, cross brace mounting rod;
[0042] 2. Measuring wheel; 201. Arc trigger plate;
[0043] 3. Horizontal mounting plate; 301. Insert shaft;
[0044] 4. Threading ring;
[0045] 5. Cleaning plate; 501. U-shaped sliding frame;
[0046] 6. Measurement controller;
[0047] 7. Z-shaped rocker; 701. Incomplete gear;
[0048] 8. Proximity sensor. DETAILED DESCRIPTION
[0049] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0050] Please refer to Figures 1 to 8 ;
[0051] Embodiment 1:
[0052] For the convenience of description, the long side of the transverse mounting plate 3 is marked as the front-to-back direction, and the short side is marked as the left-to-right direction.
[0053] The present invention proposes a highway mobile measurement device, comprising: a frame 1, a wheel axle 101, a handlebar 102, a cross brace mounting block 103, a positioning ear block 1031, a bending mounting plate 104, a positioning sleeve 105, a U-shaped driving frame 106, a longitudinal brace rack 1061, a cross brace mounting rod 107, a measuring wheel 2, an arc-shaped trigger plate 201, a transverse mounting plate 3, an insertion shaft 301, a threading ring 4, a cleaning plate 5, a U-shaped sliding frame 501, a measurement controller 6, a Z-shaped rocker 7, an incomplete gear 701, a proximity sensor 8, a frame 1 and a measuring wheel 2; the frame 1 as a whole is composed of two L-shaped main body struts and a wheel axle 101 welded between the bottom ends of the two L-shaped main body struts, and a handlebar 102 is welded between the head ends of the two L-shaped main body struts;
[0054] Among them, the wheel axle 101 is rotatably mounted with four measuring wheels 2 arranged at equal intervals; two cross brace mounting blocks 103 are welded symmetrically to the bottom side of the two L-shaped main body support rods, and two bent mounting plates 104 are welded symmetrically to the rear side of the two cross brace mounting blocks 103, and cleaning plates 5 are slidably mounted on the two bent mounting plates 104 by spring pushing, and a wire brush is arranged on the front side of the cleaning plate 5, and a U-shaped sliding frame 501 is welded on the rear side; under normal conditions, the cleaning plate 5 slides backward to keep separated from the four measuring wheels 2, and when the cleaning plate 5 slides forward, the wire brush rubs against the four measuring wheels 2 to clean the four measuring wheels 2;
[0055] Two positioning sleeves 105 are symmetrically welded to the head end of the two L-shaped main support rods, and a U-shaped driving frame 106 is slidably installed on the two positioning sleeves 105. Two steel wire pulls are symmetrically connected between the U-shaped driving frame 106 and the U-shaped sliding frame 501. Through the power transmission of the two steel wire pulls, the U-shaped driving frame 106 can be slid backward to drive the cleaning plate 5 and the wire brush to slide forward and contact the measuring wheels 2 at four locations, and the foreign matter and debris stuck and accumulated on the measuring wheels 2 at four locations are brushed and cleaned. When normally idle, the cleaning plate 5 is kept separated from the measuring wheels 2 at four locations, and can only slide forward to contact the measuring wheels 2 for cleaning when needed. Compared with the existing technology in which the brushing cleaning structure is set to be in contact with the measuring wheel 2 for long-term cleaning, this can avoid excessive wear of the measuring wheel 2 and the brushing cleaning structure, which helps to indirectly extend the service life of the measuring wheel 2 and the brushing cleaning structure.
[0056] The U-shaped driving frame 106 is arranged close to the handle 102, which can facilitate the hand to hold the handle 102 to push the measuring device for driving, and pull back to drive the U-shaped sliding frame 501, so that during the process of pushing the measuring device for measurement, the cleaning plate 5 can be driven at any time to clean the measuring wheel 2 without stopping the machine and does not occupy the normal and effective operating time of the measuring device, which helps to indirectly improve the working efficiency of the measuring device.
[0057] Preferably,
[0058] The left and right side rods of the U-shaped sliding frame 501 are pushed by springs and slideably matched with the bottom ends of the vertical parts of the two bent mounting plates 104, and the tail ends of the steel wire pull wires are fixedly connected to the rear ends of the left and right side rods of the U-shaped sliding frame 501.
[0059] Preferably,
[0060] The left and right side rods of the U-shaped driving frame 106 are correspondingly penetrated and slidably matched with the two positioning sleeves 105, and the tail end of the steel wire is fixedly connected with the head end of the left and right side rods of the U-shaped driving frame 106.
[0061] Preferably,
[0062] Two rows of threading rings 4 are welded on two bent mounting plates 104, two cross brace mounting blocks 103 and two L-shaped main body struts. The threading rings 4 are arranged along the bent and curved connection paths formed by the welding combination of the bent mounting plates 104, the cross brace mounting blocks 103 and the L-shaped main body struts, and the steel wire pull wires are threaded through a row of threading rings 4 in sequence.
[0063] Preferably,
[0064] At the right end of the cross brace side rod of the U-shaped drive frame 106, a longitudinally supported rack 1061 is welded, and a cross brace mounting rod 107 is welded between the two positioning bushings 105. A Z-shaped rocker 7 is rotatably mounted through the cross brace mounting rod 107 near the longitudinally supported rack 1061. A non-complete gear 701 is sleeved on the bottom shaft section of the Z-shaped rocker 7. The non-complete gear 701 meshes with the longitudinally supported rack 1061 for transmission. By using the non-complete gear 701 and cooperating with the spring on the U-shaped sliding frame 501, the Z-shaped rocker 7 can rotate and mesh to drive the longitudinally supported rack 1061 and the U-shaped drive frame 106 to slide back and forth, controlling the cleaning plate 5 to slide back and forth and vibrate reciprocally, implementing impact vibration cleaning on the impurities attached and retained on the wire brush. Moreover, the mechanism for driving the cleaning plate 5 to vibrate and clean and the mechanism for driving the cleaning plate 5 to move forward to clean the measuring wheel 2 are both power transmission mechanisms composed of a wire pull wire and the U-shaped drive frame 106. This enables the power transmission mechanism to have the effect of serving two purposes with one device, eliminating the need to configure two sets of power transmission mechanisms for the forward cleaning action and the impact vibration action of the cleaning plate 5 respectively, which helps to simplify the overall structure and cost of the measuring device.
[0065] Preferably,
[0066] A transverse mounting plate 3 is rotatably mounted between the two cross brace mounting blocks 103. Four proximity sensors 8 are screwed and suspended symmetrically left and right at the bottom of the transverse mounting plate 3. The transverse mounting plate 3 is rotatable, and it can be turned upward to expose the four proximity sensors 8 at its bottom to the open space above the two cross brace mounting blocks 103 for maintenance, repair or replacement, avoiding the four proximity sensors 8 being restricted in the cramped space between the transverse mounting plate 3 and the four measuring wheels 2, causing obstacles to the repair and replacement operations, which helps to improve the convenience and efficiency of the repair and replacement operations of the four proximity sensors 8;
[0067] An arc-shaped trigger plate 201 is welded at a position near the outer circumference of each of the four measuring wheels 2. The arc-shaped trigger plate 201 is used to approach and trigger the proximity sensor 8. The four measuring wheels 2 can perform four measurements on the same construction length synchronously. This enables the device to take the average value of the four measurement data when in use. Compared with the prior art of single-wheel measurement form, it can effectively improve the accuracy of the measurement data.
[0068] Preferably,
[0069] A plug shaft 301 is slidably mounted at the left end of the transverse mounting plate 3 by spring pushing, and a positioning ear block 1031 is welded at the head position of the left transverse mounting plate 3. The protruding part at the head of the plug shaft 301 is inserted and matched with the positioning ear block 1031. The plug shaft 301 can insert and position the transverse mounting plate 3 to keep the four proximity sensors 8 in the normal use state of detecting downward.
[0070] Based on the first embodiment, the second embodiment:
[0071] The outer thread of the head end of the left L-shaped main support rod is fastened with a measuring controller 6, and the four proximity sensors 8 are electrically connected to the measuring controller 6. When the pushing device is used for measurement, each time the arc-shaped trigger plate 201 follows the rotation of the measuring wheel 2 and is placed at the top position, it will approach and trigger the proximity sensor 8 once. After being triggered, the proximity sensor 8 transmits the trigger signal to the measuring controller 6. The measuring controller 6 counts the trigger signals, and the measuring controller 6 multiplies the accumulated number of triggers and the circumference of the measuring wheel 2 through a built-in program to obtain the distance that the pushing device is pushed on the road, thereby realizing the measurement of the construction length of the road.
[0072] Working principle: When the push device is used for measurement, every time the arc-shaped trigger plate 201 rotates with the measuring wheel 2 and is placed at the top position, it will approach the trigger proximity sensor 8 once. After being triggered, the proximity sensor 8 transmits the trigger signal to the measurement controller 6. The measurement controller 6 counts the trigger signal. The measurement controller 6 multiplies the accumulated number of triggers and the circumference of the measuring wheel 2 through the built-in program to obtain the distance the push device is pushed on the road, thereby measuring the construction length of the road. The measuring wheels 2 at four locations can synchronously measure the same construction length four times, and the average value of the four measurement data is taken as the final valid measurement data;
[0073] Through the power transmission of the two steel wire pull lines, the U-shaped driving frame 106 can be pulled and driven to slide the cleaning plate 5 and the wire brush forward to contact the measuring wheels 2 at four locations, and the foreign matter and debris stuck and accumulated on the measuring wheels 2 at four locations can be brushed and cleaned. The U-shaped driving frame 106 is arranged close to the handle 102, which can be convenient for the hand to hold the handle 102 to push the measuring device while driving, and the U-shaped sliding frame 501 can be pulled backward at the same time;
[0074] By using the incomplete gear 701 in conjunction with the spring on the U-shaped sliding frame 501, the Z-shaped rocker 7 can be rotated and meshed to drive the longitudinal support rack 1061 and the U-shaped driving frame 106 to slide back and forth, thereby controlling the cleaning plate 5 to slide back and forth and vibrate, thereby performing impact vibration cleaning on the impurities attached to and stored on the wire brush;
[0075] The transverse mounting plate 3 is rotatable and can be flipped upward to expose the four proximity sensors 8 at its bottom to the open space above the two cross-bracing mounting blocks 103 for maintenance, repair or replacement. The plug-in shaft 301 can be plugged in and positioned on the transverse mounting plate 3 to keep the four proximity sensors 8 in a normal use state of downward detection.
[0076] In this article, there are a few points to note:
[0077] 1. The drawings of the embodiments of the present invention only involve structures related to the embodiments of the present invention, and other structures can refer to the general design.
[0078] 2. In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to obtain new embodiments.
[0079] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.
Claims
1. A highway mobile measurement device, comprising: A vehicle frame (1) and a measuring wheel (2); the vehicle frame (1) as a whole is composed of two L-shaped main body support rods and a wheel axle (101) welded between the bottom ends of the two L-shaped main body support rods; The invention is characterized in that the wheel axle (101) is rotatably mounted with four measuring wheels (2) arranged at equal intervals; two cross brace mounting blocks (103) are symmetrically welded to the bottom side parts of the two L-shaped main body support rods; two bent mounting plates (104) are symmetrically welded to the rear sides of the two cross brace mounting blocks (103); cleaning plates (5) are slidably mounted on the two bent mounting plates (104) by spring pushing; a wire brush is arranged on the front side of the cleaning plate (5) and a U-shaped sliding frame (501) is welded on the rear side; under normal conditions, the cleaning plate (5) slides backwards to keep apart from the four measuring wheels (2); and when the cleaning plate (5) slides forwards, the wire brush is in frictional contact with the four measuring wheels (2) to clean the four measuring wheels (2); Two positioning sleeves (105) are symmetrically welded to the head ends of the two L-shaped main support rods, and a U-shaped driving frame (106) is slidably installed on the two positioning sleeves (105). Two steel wire pull wires are symmetrically connected between the U-shaped driving frame (106) and the U-shaped sliding frame (501).
2. A road mobile measurement device according to claim 1, characterized in that: The left and right side rods of the U-shaped sliding frame (501) are pushed by springs and slideably matched with the bottom ends of the vertical parts of the two bent mounting plates (104), and the tail ends of the steel wire pull wires are fixedly connected to the rear ends of the left and right side rods of the U-shaped sliding frame (501).
3. A road mobile measurement device according to claim 2, characterized in that: The left and right side rods of the U-shaped driving frame (106) are correspondingly slidably matched with two positioning sleeves (105), and the tail end of the steel wire is fixedly connected with the head end of the left and right side rods of the U-shaped driving frame (106); A handle bar (102) is welded between the head ends of the two L-shaped main body support bars.
4. A road mobile measurement device according to claim 3, characterized in that: Two rows of threading rings (4) are welded on the two bent mounting plates (104), the two cross brace mounting blocks (103) and the two L-shaped main body support rods. The threading rings (4) are arranged along a bent and curved connection path formed by welding and assembling the bent mounting plates (104), the cross brace mounting blocks (103) and the L-shaped main body support rods, and the steel wire is sequentially threaded through a row of threading rings (4).
5. The highway mobile measurement device according to claim 1, characterized in that: A longitudinal support rack (1061) supporting forward is welded to the right end of the transverse support side rod of the U-shaped driving frame (106), and a transverse support mounting rod (107) is welded between two positioning sleeves (105). A Z-shaped rocker (7) is rotatably mounted through a position of the transverse support mounting rod (107) close to the longitudinal support rack (1061). An incomplete gear (701) is mounted on the bottom shaft section of the Z-shaped rocker (7), and the incomplete gear (701) is meshed with the longitudinal support rack (1061) for transmission.
6. A road mobile measurement device according to claim 1, characterized in that: A transverse mounting plate (3) is rotatably mounted between the two transverse support mounting blocks (103), and four proximity sensors (8) are fastened and hoisted on the bottom of the transverse mounting plate (3) in a bilaterally symmetrical manner with threads; An arc-shaped trigger plate (201) is welded at four locations on the measuring wheel (2) close to the outer circumference, and the arc-shaped trigger plate (201) is used to approach and trigger the proximity sensor (8).
7. A road mobile measurement device according to claim 6, characterized in that: The left end portion of the transverse mounting plate (3) is slidably mounted with an insertion shaft (301) through a spring push, and a positioning ear block (1031) is welded at the head end of the left transverse mounting plate (3), and the head end protruding portion of the insertion shaft (301) is plugged into and matched with the positioning ear block (1031).
8. A road mobile measurement device according to claim 6, characterized in that: The outer thread of the head end of the L-shaped main support rod on the left side is fastened with a measurement controller (6), and the proximity sensors (8) at four locations are electrically connected to the measurement controller (6).
Citation Information
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