CN215610224U

CN215610224U - Full-automatic dust mist inhibiting pile for construction waste

Info

Publication number: CN215610224U
Application number: CN202121959121.0U
Authority: CN
Inventors: 崔敬知; 綦家坤; 孙元昌
Original assignee: Qingdao Xingye Commercial Concrete Co ltd
Current assignee: Qingdao Xingye Commercial Concrete Co ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-01-25
Anticipated expiration: 2031-08-20

Abstract

The application discloses a full-automatic dirt fog stake of inhibiting for building waste belongs to the technical field of the stake of spraying, its include the base, set up in water storage box on the base and set up in mount table on the base, fixedly connected with fixed sleeve on the mount table, it wears to be equipped with the removal post to slide in the fixed sleeve, it installs the workstation to remove post upper end rotation, install atomizer on the workstation, be provided with in the mount table and be used for the drive the removal post is followed the lifting unit that fixed sleeve's length direction removed, be provided with in the removal post and be used for the drive workstation pivoted rotating component. This application has the effect that makes things convenient for operating personnel to adjust atomizer height, enlarges the dust fall scope.

Description

Full-automatic dust mist inhibiting pile for construction waste

Technical Field

The application relates to the technical field of spraying piles, in particular to a full-automatic dust and fog inhibiting pile for construction waste.

Background

Along with people's standard of living's improvement, people have had more concerns to the quality of living environment, in order to reduce the raise dust in the air, reach air-purifying's purpose, the staff chooses for use the spraying stake, compares in the watering lorry, and the noise of spraying stake is less, and is less to the place influence.

In the correlation technique, chinese utility model patent that publication number is CN211849215U discloses a full-automatic intelligence spraying stake, including the base, the one end fixedly connected with mounting panel at base top, the central fixedly connected with spraying stand at mounting panel top, the outside fixed mounting of spraying stand has the electric cabinet, and the inside excavation of spraying stand has the mounting groove, the inside fixedly connected with spraying pipe way of mounting groove, the top fixed mounting of spraying stand has rotatory atomizer, and spraying pipe way's top and rotatory atomizer fixed connection.

In view of the above-mentioned related art, the inventor thinks that the height of the spraying stand is fixed, and after the position of the spraying stand is installed by the operating personnel, the height of the atomizer is fixed, the dust fall range of the atomizer is fixed, and the dust fall range is smaller.

SUMMERY OF THE UTILITY MODEL

For the convenience of operating personnel adjusts atomizer height, enlarges the dust fall scope, this application provides a full-automatic dust fog stake of inhibiting for building waste.

The application provides a full-automatic dirt fog stake that suppresses for building waste adopts following technical scheme:

the utility model provides a full-automatic dirt fog stake of inhibiting for building waste, include the base, set up in water storage box on the base and set up in mount table on the base, fixedly connected with fixed sleeve on the mount table, it wears to be equipped with the removal post to slide in the fixed sleeve, remove the post upper end and rotate and install the workstation, install the atomizer on the workstation, be provided with in the mount table and be used for the drive remove the post and follow the lifting unit that fixed sleeve's length direction removed, be provided with in the removal post and be used for the drive workstation pivoted rotating assembly.

Through adopting above-mentioned technical scheme, operating personnel drive rotating assembly, rotating assembly makes the workstation rotate, and the workstation rotates and makes atomizer rotate to make things convenient for operating personnel to adjust atomizer's rotation angle, operating personnel starts lifting unit, and lifting unit makes the removal post remove along fixed sleeve, thereby makes things convenient for operating personnel to adjust the length that the removal post extended fixed sleeve, finally makes things convenient for operating personnel to adjust atomizer's height, enlarges the dust fall scope.

Preferably, the lifting component including set up in first motor in the mount table, fixed connection in dwang, the vertical wearing to locate on the output shaft of first motor in the removal post and with removal post screw-thread fit's lead screw, fixed cover are located first bevel gear and fixed cover are located on the dwang second bevel gear on the lead screw, first bevel gear with second bevel gear intermeshing, fixedly connected with slider on the outer peripheral face of removal post, seted up on the fixed sleeve's the inside wall be used for with slider sliding fit's spout.

Through adopting above-mentioned technical scheme, the output shaft of first motor rotates and drives the dwang and rotate, and the dwang rotates and makes first bevel gear rotate, rotates thereupon with first bevel gear engaged with second bevel gear, and second bevel gear rotates and makes the lead screw rotate, and the lead screw rotates and makes the removal post remove in vertical direction, and slider and spout be provided with and do benefit to and prevent to remove the post rotation.

Preferably, a high-pressure water pump is installed in the water storage tank, a water delivery pipe is arranged on the high-pressure water pump, a pipe coiling roller is fixedly sleeved on the rotating rod, one end of the water delivery pipe is communicated with the high-pressure water pump, the other end of the water delivery pipe is communicated with the atomizing spray head, and the water delivery pipe is wound on the pipe coiling roller.

Through adopting above-mentioned technical scheme, in the high pressure water pump transported the atomizer with the water of water storage box through the raceway, the dwang rotated on the one hand and made atomizer's high emergence change, and the dwang rotated on the other hand and made the reelpipe roller rotate to make the receipts of raceway unreel convenient and fast more.

Preferably, a water inlet pipe penetrates through the water storage tank, a valve assembly is arranged on the water inlet pipe, and the valve assembly comprises a guide rod, a sealing plate and a floating plate, wherein the guide rod is slidably mounted on the inner side wall of the water inlet pipe, and the floating plate is fixedly connected to the upper sealing plate of the guide rod and the sealing plate.

Through adopting above-mentioned technical scheme, when the water storage box lacks water, in external water source got into the water storage box through the inlet tube, when the water storage box was full of water, the kickboard rose under the buoyancy of water, and the rising closing plate that drives of kickboard rose, and closing plate shutoff inlet tube, the valve member be provided with do benefit to the water source in the water storage box of assurance sufficient.

Preferably, the rotating assembly comprises a second motor arranged in the moving column, a fixed sleeve arranged on the driving gear on the output shaft of the second motor, a connecting rod fixedly connected with the workbench and a driven gear arranged on the connecting rod in the moving column in a penetrating manner, the driven gear is meshed with the driving gear, and the connecting rod is matched with the moving column in a sliding manner.

Through adopting above-mentioned technical scheme, operating personnel starts the second motor, and second motor output shaft rotates and makes the driving gear rotate, and the driving gear rotates and makes driven gear rotate, and driven gear rotates and makes the connecting rod rotate, finally makes the workstation rotate.

Preferably, the atomizing nozzle is fixedly connected with an insertion block, the workbench is provided with an insertion groove used for being in insertion fit with the insertion block, and the workbench is provided with a limiting assembly used for fixing the insertion block.

Through adopting above-mentioned technical scheme, the setting up of grafting piece and inserting groove makes atomizer and workstation demountable installation to make things convenient for operating personnel to overhaul or change atomizer, spacing subassembly be provided with and do benefit to the stability of strengthening between atomizer and the workstation.

Preferably, the limiting assembly is arranged on the workbench in a penetrating mode in a sliding mode, the limiting assembly is fixedly connected to the limiting block, the limiting block extends out of the fixed block and the limiting block is arranged on the end portion of the workbench in a sleeved mode, a limiting groove matched with the limiting block in a sliding mode is formed in the workbench, one end of the spring is fixedly connected with the fixed block, the other end of the spring is fixedly connected with the workbench, and a slot matched with the limiting block in an inserting mode is formed in the inserting block.

Through adopting above-mentioned technical scheme, operating personnel outwards stimulates the stopper, and the spring is in compression state this moment, and operating personnel loosens the stopper behind inserting the inserting groove with the grafting piece, and the fixed block removes under the spring action of spring, and in the fixed block promoted the stopper and inserted the slot, the stopper be provided with the position that does benefit to the locking grafting piece.

Preferably, the end part of the plug-in block close to the limiting block is provided with an inclined plane, the end part of the limiting block close to the plug-in block is provided with an inclined plane, and the plug-in block is matched with the inclined plane of the limiting block close to each other.

Through adopting above-mentioned technical scheme, operating personnel will peg graft the piece and insert in the slot until insertion piece and stopper butt, when operating personnel continued the downward movement insertion piece, the insertion piece was kept away from through the interact drive stopper on inclined plane to reduce the step of the handheld stopper of operating personnel, make atomizer's installation convenient and fast more.

In summary, the present application includes at least one of the following beneficial technical effects:

an operator drives the rotating assembly to rotate the workbench, the workbench rotates to rotate the atomizing nozzle, so that the operator can conveniently adjust the rotating angle of the atomizing nozzle, the operator starts the lifting assembly, the lifting assembly enables the moving column to move along the fixed sleeve, the operator can conveniently adjust the length of the moving column extending out of the fixed sleeve, the operator can conveniently adjust the height of the atomizing nozzle, and the dust falling range is enlarged;

the high-pressure water pump conveys water in the water storage tank into the atomizing spray head through the water conveying pipe, the rotating rod rotates to change the height of the atomizing spray head on one hand, and the rotating rod rotates to rotate the pipe coiling roller on the other hand, so that the water conveying pipe is more conveniently and quickly uncoiled;

the arrangement of the insertion block and the insertion groove enables the atomizing nozzle to be detachably mounted with the workbench, so that an operator can conveniently overhaul or replace the atomizing nozzle, and the arrangement of the limiting component is favorable for enhancing the stability between the atomizing nozzle and the workbench.

Drawings

Fig. 1 is a schematic structural diagram of a fully automatic dust and fog inhibiting pile for construction waste according to an embodiment of the present application.

Fig. 2 is a schematic internal structure diagram of a fully automatic dust and fog inhibiting pile for construction waste according to an embodiment of the present application.

Fig. 3 is an enlarged schematic view at a in fig. 2.

Description of reference numerals:

1. a base; 2. a water storage tank; 21. a water inlet pipe; 211. a dovetail groove; 22. a high pressure water pump; 23. a water delivery pipe; 3. an installation table; 31. fixing the sleeve; 311. a chute; 32. moving the column; 321. a slider; 322. a yielding cavity; 323. a rotation chamber; 33. a work table; 331. inserting grooves; 332. a limiting groove; 4. an atomizing spray head; 41. an insertion block; 411. a slot; 5. a valve assembly; 51. a guide bar; 511. a transverse plate; 512. a vertical plate; 513. a dovetail block; 52. a sealing plate; 53. a floating plate; 6. a lifting assembly; 61. a first motor; 62. rotating the rod; 621. a pipe coiling roller; 63. a screw rod; 64. a first bevel gear; 65. a second bevel gear; 7. a rotating assembly; 71. a second motor; 72. a connecting rod; 73. a driving gear; 74. a driven gear; 8. a limiting component; 81. a limiting block; 82. a fixed block; 83. a spring.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a full-automatic dust fog stake of inhibiting for building waste. Referring to fig. 1 and 2, the full-automatic dust mist inhibiting pile for construction waste comprises a base 1, a water storage tank 2, a mounting platform 3 and an atomizing nozzle 4.

Referring to fig. 1 and 2, a base 1 has a rectangular plate shape, and the base 1 is horizontally installed on the ground. The water storage tank 2 is hollow box-shaped, the bottom surface of the water storage tank 2 is fixedly connected with the upper surface of the base 1, the water inlet pipe 21 is arranged on the upper surface of the water storage tank 2 in a penetrating mode, a valve assembly 5 is arranged in the water inlet pipe 21, the valve assembly 5 comprises a guide rod 51, a sealing plate 52 and a floating plate 53, the guide rod 51 comprises a transverse plate 511 and a vertical plate 512, one end of the transverse plate 511 is fixedly connected with the vertical plate 512, the other end of the transverse plate 511 is fixedly connected with a dovetail block 513, and a dovetail groove 211 used for being matched with the dovetail block 513 in a sliding mode is formed in the inner side wall of the water inlet pipe 21. The end of the vertical plate 512 far away from the transverse rod is fixedly connected with the sealing plate 52, and the outer side wall of the sealing plate 52 is in sliding fit with the inner side wall of the water inlet pipe 21. The bottom surface of the sealing plate 52 is fixedly connected to the upper surface of the floating plate 53, and the upper surface of the floating plate 53 abuts against the bottom surface of the water inlet pipe 21.

Referring to fig. 1 and 2, a high pressure water pump 22 is installed on the inner end surface of the water storage tank 2, a water delivery pipe 23 is arranged on the high pressure water pump 22, one end of the water delivery pipe 23 is communicated with the high pressure water pump 22, and the other end of the water delivery pipe 23 is communicated with the atomizing nozzle 4. When the water level in the water storage tank 2 is lowered, an external water source enters the water storage tank 2 through the water inlet pipe 21, when the water level rises, the floating plate 53 moves upwards under the buoyancy of water, the floating plate 53 moves to drive the sealing plate 52 to move, the sealing plate 52 enters the water inlet pipe 21 to block the water inlet pipe 21, then external water is prevented from continuously entering the water storage tank 2, and the guide rod 51 and the dovetail block 513 are arranged to provide a guide effect for the movement of the sealing plate 52. The water in the water storage tank 2 is conveyed to the atomizing nozzle 4 by a high-pressure water pump 22 through a water conveying pipe 23.

Referring to fig. 1 and 2, the mounting table 3 is in a rectangular frame shape, the bottom surface of the mounting table 3 is fixedly connected with the upper surface of the base 1, and the side surface of the mounting table 3 is fixedly connected with the side surface of the water storage tank 2. The upper surface of mount table 3 is provided with fixed sleeve 31, and fixed sleeve 31 is the circular tube-shape, and fixed sleeve 31 both ends opening, and fixed sleeve 31 vertical setting. The bottom surface of fixed sleeve 31 is connected with the last fixed surface of mount table 3, and the upper end of fixed sleeve 31 is worn to be equipped with and is removed post 32, removes the lateral wall of post 32 and the inside wall sliding fit of fixed sleeve 31. The outer side wall of the moving column 32 is fixedly connected with two sliding blocks 321, and the two sliding blocks 321 are symmetrically arranged about the axis of the moving column 32. The sliding groove 311 is formed in the inner side wall of the fixed sleeve 31, the length direction of the sliding groove 311 is consistent with that of the fixed sleeve 31, the inner side wall of the sliding groove 311 is matched with the sliding block 321 in a sliding mode, and the sliding block 321 and the sliding groove 311 are arranged to be beneficial to preventing the movable column 32 from rotating.

Referring to fig. 1 and 2, a lifting assembly 6 is disposed in the mounting table 3, and the lifting assembly 6 includes a first motor 61, a rotating rod 62, a screw 63, a first bevel gear 64, and a second bevel gear 65. The first motor 61 is installed on the upper surface of the base 1, the rotating rod 62 is horizontally arranged, the rotating rod 62 is fixedly connected with the output shaft of the first motor 61, and the axis of the rotating rod 62 coincides with the axis of the output shaft of the first motor 61. The screw 63 penetrates through the movable column 32, the screw 63 is in threaded fit with the movable column 32, the screw 63 extends into the mounting table 3, and the screw 63 is in running fit with the mounting table 3. The first bevel gear 64 is sleeved on the rotating rod 62, the first bevel gear 64 is fixedly connected with the rotating rod 62, the second bevel gear 65 is arranged in the installation table 3, the second bevel gear 65 is sleeved on the screw rod 63, the second bevel gear 65 is fixedly connected with the screw rod 63, and the first bevel gear 64 and the second bevel gear 65 are meshed with each other. An operator starts the first motor 61, an output shaft of the first motor 61 rotates to drive the rotating rod 62 to rotate, the rotating rod 62 rotates to enable the first bevel gear 64 to rotate, the second bevel gear 65 meshed with the first bevel gear 64 rotates along with the first bevel gear, the second bevel gear 65 rotates to enable the screw rod 63 to rotate, and the screw rod 63 rotates to enable the moving column 32 to move in the vertical direction.

Referring to fig. 1 and 2, the cover is equipped with reelpipe roller 621 on the dwang 62, reelpipe roller 621 and dwang 62 fixed connection, and raceway 23 is around locating reelpipe roller 621 on, when dwang 62 rotates, dwang 62 rotates and makes reelpipe roller 621 rotate to make the receipts of raceway 23 unreel convenient and fast more.

Referring to fig. 2 and 3, a table 33 is rotatably mounted on an upper end of the moving column 32, the table 33 has a rectangular plate shape, the rotating unit 7 is provided in the moving column 32, and the rotating unit 7 includes a second motor 71, a connecting rod 72, a driving gear 73, and a driven gear 74. The upper end of the moving column 32 is provided with a rotating cavity 323, the cross section of the rotating cavity 323 is rectangular, the second motor 71 is arranged on the inner bottom surface of the rotating cavity 323, the driving gear 73 is sleeved on the output shaft of the second motor 71, and the driving gear 73 is fixedly connected with the output shaft of the second motor 71. The connecting rod 72 vertically penetrates through the moving column 32, the connecting rod 72 is rotatably connected with the moving column 32, one end of the connecting rod 72 is fixedly connected with the bottom surface of the workbench 33, and the other end of the connecting rod 72 extends into the rotating cavity 323. The driven gear 74 is sleeved on the end portion of the connecting rod 72 extending into the rotating cavity 323, the driven gear 74 is fixedly connected with the connecting rod 72, and the driven gear 74 is meshed with the driving gear 73. The operator starts the second motor 71, the output shaft of the second motor 71 rotates to rotate the driving gear 73, the driving gear 73 rotates to rotate the driven gear 74, the driven gear 74 rotates to rotate the connecting rod 72, and finally the workbench 33 rotates.

Referring to fig. 2 and 3, two insertion blocks 41 are fixedly connected to the bottom surface of the atomizer 4, and the two insertion blocks 41 are arranged at intervals. The upper surface of the working table 33 is provided with an insertion groove 331, and the inner side wall of the insertion groove 331 is in sliding fit with the insertion block 41. The number of the insertion grooves 331 is two, and the two insertion blocks 41 correspond to the two insertion grooves 331 one by one. One end of the water pipe 23 far away from the high-pressure water pump 22 sequentially passes through the fixed sleeve 31, the moving column 32 and the workbench 33 and is finally communicated with the atomizing nozzle 4. The end part of the moving column 32 close to the workbench 33 is provided with a yielding cavity 322 for facilitating the rotation of the water pipe 23.

Referring to fig. 2 and 3, a limiting assembly 8 is arranged in the workbench 33, the limiting assembly 8 includes a limiting block 81, a fixing block 82 and a spring 83, a limiting groove 332 is formed in the side surface of the workbench 33, and the inner side wall of the limiting groove 332 is in sliding fit with the outer side wall of the limiting block 81. The end part of the limiting block 81 close to the insertion block 41 is provided with an inclined plane, the end part of the insertion block 41 close to the limiting block 81 is provided with an inclined plane, and the limiting block 81 and the insertion block 41 are mutually close to the inclined plane and matched. The outer side wall of the insertion block 41 is provided with a slot 411, and the inner side wall of the slot 411 is matched with the outer side wall of the limiting block 81 in a sliding manner. The two limiting blocks 81 are provided, and the two limiting blocks 81 correspond to the two insertion blocks 41 one to one. The end portion of the fixing block 82 close to the workbench 33 and the limiting block 81 extend out of the end face of the limiting groove 332 to be fixedly connected, the limiting block 81 is sleeved with the spring 83, one end of the spring 83 is fixedly connected with the fixing block 82 close to the workbench 33, and the other end of the spring 83 is fixedly connected with the outer side wall of the workbench 33.

The implementation principle of the full-automatic dust and fog inhibiting pile for the construction waste is as follows: the operator pushes the atomizer 4 to insert the insertion block 41 into the insertion groove 331, and the position of the insertion block 41 is fixed by the limiting block 81 under the action of the spring 83, so that the stability of the atomizer 4 is improved.

The first motor 61 is started to enable the rotating rod 62 to rotate, on one hand, the rotating rod 62 rotates to enable the screw rod 63 to rotate, and on the other hand, the screw rod 63 rotates to enable the moving column 32 to move along the fixed sleeve 31, so that an operator can conveniently control the height of the atomizing nozzle 4, and further the dust fall range is controlled; the rotating rod 62 rotates on the other hand to rotate the pipe coiling roller 621, so that the coiling and uncoiling of the water conveying pipe 23 are more convenient.

The second motor 71 drives the connecting rod 72 to rotate by matching the driving gear 73 with the driven gear 74, the connecting rod 72 rotates to rotate the workbench 33, and the workbench 33 rotates to rotate the atomizer 4. The arrangement of the valve plate component on the water inlet pipe 21 of the water storage tank 2 is favorable for ensuring that sufficient water source exists in the water storage tank 2, so that the water-break protection is conveniently carried out on the spraying pile.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a full-automatic dirt fog stake that presses down for building waste, include base (1), set up in water storage box (2) on base (1) and set up in mount table (3) on base (1), its characterized in that: fixedly connected with fixed sleeve (31) on mount table (3), it wears to be equipped with in fixed sleeve (31) and removes post (32), it installs workstation (33) to remove post (32) upper end rotation, install atomizer (4) on workstation (33), be provided with in mount table (3) and be used for the drive remove post (32) and follow the lifting unit (6) that the length direction of fixed sleeve (31) removed, be provided with in removing post (32) and be used for the drive workstation (33) pivoted rotating assembly (7).

2. The full-automatic dust and fog inhibiting pile for construction waste as claimed in claim 1, wherein: lifting unit (6) including set up in first motor (61), fixed connection in mount table (3) dwang (62), vertical wear to locate in removing post (32) and with remove post (32) screw-thread fit's lead screw (63), fixed cover are located first bevel gear (64) and fixed cover are located on dwang (62) second bevel gear (65) on lead screw (63), first bevel gear (64) with second bevel gear (65) intermeshing, fixedly connected with slider (321) on the outer peripheral face of removal post (32), seted up on the inside wall of fixed sleeve (31) be used for with slider (321) sliding fit's spout (311).

3. The full-automatic dust and fog inhibiting pile for construction waste as claimed in claim 2, wherein: install high pressure water pump (22) in water storage box (2), be provided with raceway (23) on high pressure water pump (22), fixed cover is equipped with reelpipe roller (621) on dwang (62), raceway (23) one end with high pressure water pump (22) want the intercommunication, the raceway (23) other end with atomizer (4) are linked together, just raceway (23) are around locating on reelpipe roller (621).

4. The full-automatic dust and fog inhibiting pile for construction waste as claimed in claim 1, wherein: the water storage tank (2) is provided with a water inlet pipe (21) in a penetrating mode, the water inlet pipe (21) is provided with a valve assembly (5), and the valve assembly (5) comprises a guide rod (51) which is slidably installed on the inner side wall of the water inlet pipe (21), a sealing plate (52) which is fixedly connected to the guide rod (51) and a floating plate (53) which is fixedly connected to the sealing plate (52).

5. The full-automatic dust and fog inhibiting pile for construction waste as claimed in claim 1, wherein: rotating assembly (7) including set up in second motor (71), fixed cover in removal post (32) are located driving gear (73), wear to locate on second motor (71) output shaft in removal post (32) and with workstation (33) fixed connection's connecting rod (72), fixed cover are located driven gear (74) on connecting rod (72), driven gear (74) with driving gear (73) intermeshing, connecting rod (72) with remove post (32) cooperation of sliding.

6. The full-automatic dust and fog inhibiting pile for construction waste as claimed in claim 1, wherein: the atomizing nozzle is characterized in that an inserting block (41) is fixedly connected to the atomizing nozzle (4), an inserting groove (331) which is used for being matched with the inserting block (41) in an inserting mode is formed in the workbench (33), and a limiting component (8) which is used for fixing the inserting block (41) is arranged on the workbench (33).

7. The full-automatic dust and fog inhibiting pile for construction waste as claimed in claim 6, wherein: spacing subassembly (8) wear to locate including sliding stopper (81), fixed connection in on workstation (33) stopper (81) extend fixed block (82), the cover on workstation (33) tip are located spring (83) on stopper (81), seted up on workstation (33) be used for with stopper (81) complex spacing groove (332) that slides, spring (83) one end with fixed block (82) fixed connection, spring (83) other end with workstation (33) fixed connection, offer on plug-in block (41) be used for with stopper (81) complex slot (411) of pegging graft.

8. The full-automatic dust and fog inhibiting pile for construction waste as claimed in claim 7, wherein: the end part of the insertion block (41) close to the limiting block (81) is provided with an inclined plane, the end part of the limiting block (81) close to the insertion block (41) is provided with an inclined plane, and the insertion block (41) is matched with the inclined plane of the limiting block (81) close to each other.