CN110820717A - Efficient pole pit tamping device for electric power engineering construction - Google Patents
Efficient pole pit tamping device for electric power engineering construction Download PDFInfo
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- CN110820717A CN110820717A CN201911195846.4A CN201911195846A CN110820717A CN 110820717 A CN110820717 A CN 110820717A CN 201911195846 A CN201911195846 A CN 201911195846A CN 110820717 A CN110820717 A CN 110820717A
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- 238000010276 construction Methods 0.000 title claims abstract description 27
- 230000002093 peripheral effect Effects 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims description 11
- 244000309464 bull Species 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
The invention provides a high-efficiency pole pit tamping device for electric power engineering construction, and relates to the technical field of electric power engineering construction. This efficient is pole hole tamping unit for electric power engineering construction, including the framework, the peripheral fixed mounting of framework has the hinge, the peripheral one side fixed mounting relative with the hinge of framework has the hasp, the peripheral fixed mounting of framework has the handle, the top fixed mounting of framework has the locating frame, the peripheral threaded connection of locating frame has the threaded rod. This efficient is pole hole tamping unit for electric power engineering construction can make the tamping unit spacing encircle the periphery of connecting at the wire pole, greatly reduced the intensity and the degree of difficulty of operation, also avoided the weight to pound the phenomenon of well wire pole simultaneously, guaranteed the safety of wire pole, the clamp plate can carry out stable intermittent type formula striking to earth, has improved the efficiency of tamping, can be applicable to the wire pole of different diameters, and can carry out the accuse to the degree of tamping.
Description
Technical Field
The invention relates to the technical field of electric power engineering construction, in particular to a high-efficiency pole pit tamping device for electric power engineering construction.
Background
Electric power engineering, i.e., engineering related to the production, transmission and distribution of electric energy, also broadly includes engineering using electricity as power and energy in various fields, and in the process of electric power engineering construction, the erection of a utility pole is one of them, and after the utility pole is erected and buried, soil around the utility pole needs to be tamped to improve the stability of the utility pole fixation and avoid the inclination of the utility pole.
In the current electric power engineering construction, two methods of manual tamping and mechanical tamping are generally adopted for tamping a pole pit, the manual tamping process is complex, time and labor are wasted, the working strength is high, in the mechanical tamping process, a heavy hammer only exists on one side of a pole, the heavy hammer needs to circularly surround the periphery of the pole, the position of the machine needs to be moved ceaselessly, in the tamping process, the distance between the heavy hammer and the pole needs to be noticed, the operation strength and difficulty are high, the surface of the pole can be hit, and the pole is damaged.
In order to solve the problems, the inventor provides an efficient pole pit tamping device for electric power engineering construction, the tamping device can be connected to the periphery of a telegraph pole in a limiting and surrounding mode, the operation strength and difficulty are greatly reduced, meanwhile, the phenomenon that a heavy hammer strikes the telegraph pole is avoided, the safety of the telegraph pole is guaranteed, a pressing plate can stably and intermittently impact soil, the tamping efficiency is improved, the pole pit tamping device can be suitable for telegraph poles with different diameters, and the tamping degree can be controlled.
Disclosure of Invention
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides an efficient pole pit tamping device for electric power engineering construction, includes framework, hinge, hasp, handle, locating frame, threaded rod, ball, wire pole, pivot, belt pulley, belt, drive shaft, bevel gear, circular gear, motor, bent axle, bull stick, lifter, base, spring, clamp plate, hydraulic stem, universal wheel.
Wherein:
the periphery of the frame body is fixedly provided with a hinge, one side of the periphery of the frame body opposite to the hinge is fixedly provided with a lock catch, the periphery of the frame body is fixedly provided with a handle, the top end of the frame body is fixedly provided with a positioning frame, the peripheral thread of the positioning frame is connected with a threaded rod, one end of the threaded rod close to the center of the positioning frame is connected with a ball in a rolling manner, a telegraph pole is placed inside the positioning frame, the inside of the frame body is rotatably connected with a rotating shaft, the center of the rotating shaft is fixedly provided with a belt pulley, the belt pulley is connected with a driving shaft through belt transmission, one end of the driving shaft is fixedly provided with a bevel gear, the periphery of the bevel gear is meshed with a circular gear, the center of the circular gear is connected with a motor in a transmission manner, the bottom fixed mounting of lifter has the base, the bottom of base is through spring fixedly connected with clamp plate, the fixed mounting all around of framework bottom has the hydraulic stem, the bottom of hydraulic stem is rotated and is connected with the universal wheel.
Preferably, the frame body is formed by combining two semi-cylinders, and the hinge and the lock catch are distributed at the closed positions on two sides of the two semi-cylinders, so that the frame body can be unfolded and connected around the periphery of the telegraph pole in a surrounding mode.
Preferably, the number of the threaded rods is four, the threaded rods are uniformly distributed on the periphery of the positioning frame, the telegraph pole can be positioned through the threaded rods, the threaded rods are located in the center of the positioning frame, and the limit connection between the tamping device and the telegraph pole is completed.
Preferably, the number of the rotating shafts is four, the rotating shafts are evenly distributed in the frame body, a motor is fixedly connected in a single semi-cylinder of the frame body, two rotating shafts are connected in a rotating mode, a circular gear on the motor is meshed with bevel gears in transmission connection with the two rotating shafts, and therefore when the motor drives the circular gear to rotate, the two rotating shafts in the single semi-cylinder can be driven to rotate.
Preferably, it is single pivot both sides fixed mounting has two bent axles, and is rotational symmetry about the center of pivot, every the bottom of bent axle all rotates and is connected with bull stick and lifter, the spacing sliding connection of lifter is in the bottom of framework, consequently at pivot pivoted in-process, the bent axle of both sides can drive the lifter and carry out crisscross reciprocating.
Preferably, the center of the top end of the pressure plate is fixedly provided with a contact block and is positioned on the inner side of the spring, the pressure plate can be contacted with the ground before the lifting rod moves downwards, and then the base compresses the spring to be contacted with the contact block at the top end of the pressure plate, so that the pressure plate can impact the ground again under the action of the inertia of the base.
The invention provides a high-efficiency pole pit tamping device for electric power engineering construction. The method has the following beneficial effects:
1. this efficient is pole hole tamping unit for electric power engineering construction, through the design of two semicylinders of framework, the locating frame and the threaded rod on cooperation framework top can make the spacing periphery of encircleing the connection at the wire pole of tamping unit, only need just can carry out tamping work to wire pole outlying ground through rotating the framework, greatly reduced the intensity and the degree of difficulty of operation, also avoided the phenomenon that the wire pole was pounded to the weight simultaneously, guaranteed the safety of wire pole.
2. This efficient is pole hole tamping unit for electric power engineering construction through the inside pivot of evenly rotating the connection of framework to and the design of two bent axles in the pivot, drive pivot pivoted in-process at the motor, can make two bent axles drive lifter and clamp plate in the pivot and carry out crisscross reciprocating, and then make the clamp plate can carry out stable intermittent type formula striking to earth, improved the efficiency of tamping to the pole hole.
3. This efficient is pole pit tamping unit for electric power engineering construction, through the design of the internal screw thread pole of locating frame, can make tamping unit be applicable to the wire pole of different diameters.
4. This efficient is pole hole tamping unit for electric power engineering construction, through the design of framework bottom hydraulic stem, can drive the framework and reciprocate, be favorable to carrying out the tamping of different degrees to ground.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of the structure of FIG. 1 taken along line A-A thereof in accordance with the present invention;
FIG. 3 is an enlarged view of the platen structure of the present invention;
FIG. 4 is a cross-sectional view of a top view of the structure of the present invention;
fig. 5 is an enlarged view of the transmission structure of the motor and the rotating shaft of the present invention.
In the figure: 1. a frame body; 2. a hinge; 3. locking; 4. a handle; 5. a positioning frame; 6. a threaded rod; 7. a ball bearing; 8. a utility pole; 9. a rotating shaft; 10. a belt pulley; 11. a belt; 12. a drive shaft; 13. a bevel gear; 14. a circular gear; 15. a motor; 16. a crankshaft; 17. a rotating rod; 18. a lifting rod; 19. a base; 20. a spring; 21. pressing a plate; 22. a hydraulic lever; 23. a universal wheel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the efficient rod pit tamping device for electric power engineering construction is as follows:
referring to fig. 1-5, a high-efficiency pole pit tamping device for electric power engineering construction includes a frame body 1, a hinge 2, a latch 3, a handle 4, a positioning frame 5, a threaded rod 6, a ball 7, a pole 8, a rotating shaft 9, a belt pulley 10, a belt 11, a driving shaft 12, a bevel gear 13, a circular gear 14, a motor 15, a crankshaft 16, a rotating rod 17, a lifting rod 18, a base 19, a spring 20, a pressing plate 21, a hydraulic rod 22, and a universal wheel 23.
Wherein:
the hinge 2 is fixedly arranged on the periphery of the frame body 1, the frame body 1 is formed by combining two semicylinders, the hinge 2 and the lock catch 3 are distributed at the closed positions at the two sides of the two semicylinders, so that the frame body 1 can be unfolded, the lock catch 3 is fixedly arranged on one side of the periphery of the frame body 1 opposite to the hinge 2, the handle 4 is fixedly arranged on the periphery of the frame body 1, the positioning frame 5 is fixedly arranged at the top end of the frame body 1, the periphery of the positioning frame 5 is in threaded connection with four threaded rods 6, the number of the threaded rods 6 is four, and the threaded rods are uniformly distributed on the periphery of the positioning frame 5, the telegraph pole 8 can be positioned by the threaded rod 6, so that the threaded rod 6 is positioned at the center of the positioning frame 5, the limit connection between the tamping device and the telegraph pole 8 is completed, by designing the threaded rod 6 in the positioning frame 5, the tamping device can be adapted to utility poles 8 of different diameters.
The utility model has the advantages that one end of the threaded rod 6 close to the center of the positioning frame 5 is connected with the rolling ball 7 in a rolling way, the utility pole 8 is arranged in the positioning frame 5, the inner part of the frame body 1 is connected with the rotating shaft 9 in a rotating way, the number of the rotating shaft 9 is four, and the rotating shaft is evenly distributed in the frame body 1, the single semi-cylinder of the frame body 1 is fixedly connected with the motor 15 which is connected with the two rotating shafts 9 in a rotating way, and the circular gear 14 on the motor 15 is simultaneously meshed with the bevel gear 13 in transmission connection with the two rotating shafts 9, therefore, when the motor 15 drives the circular gear 14 to rotate, the two rotating shafts 9 in the single semi-cylinder can be driven to rotate, the tamping device can be connected to the periphery of the utility pole 8 in a limiting way through the design of the two semi-cylinders of the frame body 1 and the positioning frame 5 and, greatly reduces the operation intensity and difficulty, simultaneously avoids the phenomenon that the heavy hammer hits the telegraph pole 8, and ensures the safety of the telegraph pole 8.
The center of the rotating shaft 9 is fixedly provided with a belt pulley 10, the belt pulley 10 is connected with a driving shaft 12 through a belt 11 in a transmission way, one end of the driving shaft 12 is fixedly provided with a bevel gear 13, the periphery of the bevel gear 13 is meshed with a circular gear 14, the center of the circular gear 14 is connected with a motor 15 in a transmission way, two sides of the rotating shaft 9 are fixedly provided with crankshafts 16, two crankshafts 16 are fixedly arranged on two sides of a single rotating shaft 9 and are in rotational symmetry with the center of the rotating shaft 9, the bottom end of each crankshaft 16 is rotatably connected with a rotating rod 17 and a lifting rod 18, and the lifting rods 18 are connected to the bottom of the frame body 1 in a limiting and sliding way, so that in the rotating process of the rotating shaft 9, the crankshafts 16 on two sides can drive the lifting rods 18 to move up and down in a staggered way, through the, can make two bent axles 16 on the pivot 9 drive lifter 18 and clamp plate 21 and carry out crisscross reciprocating, and then make clamp plate 21 can carry out stable intermittent type formula striking to earth, improved the efficiency of tamping to the pole hole.
The periphery of bent axle 16 rotates and is connected with bull stick 17, the bottom fixed mounting of bull stick 17 has lifter 18, the bottom fixed mounting of lifter 18 has base 19, spring 20 fixedly connected with clamp plate 21 is passed through to base 19's bottom, the center fixed mounting on clamp plate 21 top has the feeler block, and be located the inboard of spring 20, in the in-process that lifter 18 moved down, clamp plate 21 can contact before ground, then base 19 compression spring 20 and contact with the feeler block on clamp plate 21 top, make clamp plate 21 strike ground once more under the effect of base 19 inertia, fixed mounting all around of framework 1 bottom has hydraulic stem 22, the bottom of hydraulic stem 22 rotates and is connected with universal wheel 23, through the design of framework 1 bottom hydraulic stem 22, can drive framework 1 and reciprocate, be favorable to carrying out the tamping of different degrees to ground.
When the utility model is used, the tamping device is moved to the buried telegraph pole 8 through the universal wheel 23, the lock catch 3 is opened to expand the two semi-cylinders of the frame body 1 around the hinge 2, then the tamping device is moved to wrap the telegraph pole 8 by the positioning frame 5, the lock catch 3 is closed to close the two semi-cylinders, the ball 7 at the inner side is used for extruding the telegraph pole 8 by rotating the threaded rod 6 after the closing is finished, the telegraph pole 8 is positioned at the center of the positioning frame 5, the limit connection between the tamping device and the telegraph pole 8 is realized, then the motor 15 is opened to drive the circular gear 14 to rotate, the circular gear 14 is meshed with the bevel gear 13 to rotate the bevel gear 13, the driving shaft 12 on the bevel gear 13 is connected with the rotating shaft 9 through the transmission of the belt 11, the rotating shaft 9 can be rotated to drive the crankshafts 16 at the two sides of the rotating shaft 9 to further rotate, and at the rotatory in-process of bent axle 16, utilize the effect of bull stick 17, can drive two adjacent lifter 18 and carry out crisscross reciprocating, and then drive base 19 and clamp plate 21 and tamp the ground of just burying, and at the in-process that clamp plate 21 reciprocated, can make framework 1 carry out slow rotation through handle 4, and then carry out more comprehensive tamping to ground, after ground is sunken deeply downwards, utilize the effect of hydraulic stem 22 to adjust the height of framework 1, accomplish further tamping work.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an efficient is pole pit tamping unit for electric power engineering construction, includes framework (1), its characterized in that: the novel multifunctional electric bicycle is characterized in that a hinge (2) is fixedly installed on the periphery of the frame body (1), a lock catch (3) is fixedly installed on one side, opposite to the hinge (2), of the periphery of the frame body (1), a handle (4) is fixedly installed on the periphery of the frame body (1), a positioning frame (5) is fixedly installed on the top end of the frame body (1), a threaded rod (6) is connected with the periphery of the positioning frame (5) in a threaded mode, balls (7) are connected to one end, close to the center of the positioning frame (5), of the threaded rod (6) in a rolling mode, telegraph poles (8) are placed inside the positioning frame (5), a rotating shaft (9) is rotatably connected to the inside of the frame body (1), a belt pulley (10) is fixedly installed at the center of the rotating shaft (9), the belt pulley (10) is connected with a, the peripheral meshing of bevel gear (13) has round gear (14), the center transmission of round gear (14) is connected with motor (15), the both sides fixed mounting of pivot (9) has bent axle (16), the peripheral rotation of bent axle (16) is connected with bull stick (17), the bottom fixed mounting of bull stick (17) has lifter (18), the bottom fixed mounting of lifter (18) has base (19), spring (20) fixedly connected with clamp plate (21) are passed through to the bottom of base (19), fixed mounting all around of framework (1) bottom has hydraulic stem (22), the bottom of hydraulic stem (22) is rotated and is connected with universal wheel (23).
2. The efficient pole pit tamping device for power engineering construction according to claim 1, wherein: the frame body (1) is formed by combining two semicylinders, and the hinge (2) and the lock catch (3) are distributed at the closed positions of two sides of the two semicylinders.
3. The efficient pole pit tamping device for power engineering construction according to claim 1, wherein: the number of the threaded rods (6) is four in total, and the threaded rods are uniformly distributed on the periphery of the positioning frame (5).
4. The efficient pole pit tamping device for power engineering construction according to claim 1, wherein: the number of the rotating shafts (9) is four, and the rotating shafts are uniformly distributed in the frame body (1).
5. The efficient pole pit tamping device for power engineering construction according to claim 1, wherein: a motor (15) is fixedly connected in a single semi-cylinder of the frame body (1), two rotating shafts (9) are rotatably connected, and a circular gear (14) on the motor (15) is meshed with bevel gears (13) which are in transmission connection with the two rotating shafts (9) at the same time.
6. The efficient pole pit tamping device for power engineering construction according to claim 1, wherein: single pivot (9) both sides fixed mounting has two bent axles (16), and is rotational symmetry about the center of pivot (9), every the bottom of bent axle (16) all rotates and is connected with bull stick (17) and lifter (18).
7. The efficient pole pit tamping device for power engineering construction according to claim 1, wherein: the lifting rod (18) is connected to the bottom of the frame body (1) in a limiting and sliding mode.
8. The efficient pole pit tamping device for power engineering construction according to claim 1, wherein: the center of the top end of the pressure plate (21) is fixedly provided with a contact block and is positioned on the inner side of the spring (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911195846.4A CN110820717B (en) | 2019-11-29 | 2019-11-29 | Rod pit tamping device for electric power engineering construction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911195846.4A CN110820717B (en) | 2019-11-29 | 2019-11-29 | Rod pit tamping device for electric power engineering construction |
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| CN110820717A true CN110820717A (en) | 2020-02-21 |
| CN110820717B CN110820717B (en) | 2021-04-13 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111350179A (en) * | 2020-03-10 | 2020-06-30 | 刘丰源 | Magnetic tamping device for electric power engineering pole |
| CN111550118A (en) * | 2020-05-21 | 2020-08-18 | 何学峰 | Electric wire pole buries auxiliary device for electric power construction |
| CN111719540A (en) * | 2020-07-08 | 2020-09-29 | 陈魏彬 | Efficient is ramming equipment for electric power engineering construction |
| CN112502125A (en) * | 2020-11-26 | 2021-03-16 | 国网山东省电力公司建设公司 | Rammer compactor for power line pole construction |
| CN113186913A (en) * | 2021-05-19 | 2021-07-30 | 靳鸿喜 | Fixed point pile tamping device for land management |
| CN113699966A (en) * | 2021-08-17 | 2021-11-26 | 李云凤 | Safe electric power construction equipment |
| CN113863271A (en) * | 2021-09-30 | 2021-12-31 | 国网山东省电力公司武城县供电公司 | Tamping device for concrete pole vertical rod |
| CN113931160A (en) * | 2021-10-28 | 2022-01-14 | 山东省地质矿产勘查开发局第四地质大队(山东省第四地质矿产勘查院) | Ground soil covering and compacting device for geological exploration |
| CN114164818A (en) * | 2022-01-21 | 2022-03-11 | 湘西同富电力建设有限公司 | Rod pit tamping device for electric power engineering |
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| CN204608748U (en) * | 2015-05-12 | 2015-09-02 | 江苏建筑职业技术学院 | A kind of efficient tamping machine |
| CN208870022U (en) * | 2018-10-10 | 2019-05-17 | 洪帅 | A kind of tamping device for building |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111350179A (en) * | 2020-03-10 | 2020-06-30 | 刘丰源 | Magnetic tamping device for electric power engineering pole |
| CN111350179B (en) * | 2020-03-10 | 2021-11-23 | 国网甘肃省电力公司陇南供电公司 | Magnetic tamping device for electric power engineering pole |
| CN111550118B (en) * | 2020-05-21 | 2021-11-16 | 国网浙江省电力有限公司浦江县供电公司 | Electric wire pole buries auxiliary device for electric power construction |
| CN111550118A (en) * | 2020-05-21 | 2020-08-18 | 何学峰 | Electric wire pole buries auxiliary device for electric power construction |
| CN111719540A (en) * | 2020-07-08 | 2020-09-29 | 陈魏彬 | Efficient is ramming equipment for electric power engineering construction |
| CN112502125A (en) * | 2020-11-26 | 2021-03-16 | 国网山东省电力公司建设公司 | Rammer compactor for power line pole construction |
| CN112502125B (en) * | 2020-11-26 | 2022-08-02 | 国网山东省电力公司建设公司 | Rammer compactor for power line pole construction |
| CN113186913A (en) * | 2021-05-19 | 2021-07-30 | 靳鸿喜 | Fixed point pile tamping device for land management |
| CN113699966A (en) * | 2021-08-17 | 2021-11-26 | 李云凤 | Safe electric power construction equipment |
| CN113863271A (en) * | 2021-09-30 | 2021-12-31 | 国网山东省电力公司武城县供电公司 | Tamping device for concrete pole vertical rod |
| CN113931160A (en) * | 2021-10-28 | 2022-01-14 | 山东省地质矿产勘查开发局第四地质大队(山东省第四地质矿产勘查院) | Ground soil covering and compacting device for geological exploration |
| CN113931160B (en) * | 2021-10-28 | 2022-12-30 | 山东省地质矿产勘查开发局第四地质大队(山东省第四地质矿产勘查院) | Ground soil covering and compacting device for geological exploration |
| CN114164818A (en) * | 2022-01-21 | 2022-03-11 | 湘西同富电力建设有限公司 | Rod pit tamping device for electric power engineering |
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| CN110820717B (en) | 2021-04-13 |
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