Chlorantraniliprole wet material conveying device based on automatic guided vehicle

Abstract

The invention relates to the technical field of conveying devices, in particular to a chlorantraniliprole wet material conveying device based on an automatic guided vehicle, which comprises a vehicle body and a carriage fixedly mounted on the vehicle body, and further comprises a conveying module, the butt-joint assembly comprises a butt-joint module, a roller set module and a positioning module, the butt-joint module comprises lifting grooves formed in the two sides of the carriage, T-shaped blocks and rotating shafts, the T-shaped blocks and the rotating shafts are movably installed in the lifting grooves, protection plates are fixedly installed on the T-shaped blocks, and during feeding and discharging, butt-joint sets are changed into a butt-joint state from a protection state; the automatic feeding and discharging device has the beneficial effects that through the transportation form and the butt joint form of the butt joint assembly, the conveying belt and the stacking robot can be in butt joint in the feeding and discharging process, rapid feeding and discharging are conducted, the operation efficiency is improved, the manual load is reduced, products are protected and fixed in the transportation process, and the transportation safety is improved; vehicle-mounted tools are reduced through structural form changes, and the transportation space is increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of conveying devices, in particular to a chlorantraniliprole wet material conveying device based on an automatic guided vehicle. BACKGROUND

[0002] Chlorantraniliprole wet material generally refers to the mixture after dilution of its suspension concentrate with water, which is used for spraying to control pests. With the rapid development of logistics automation and production automation, the finished product chlorantraniliprole is unloaded from the conveying belt and then transported to the warehouse for storage by an AGV transport vehicle.

[0003] Patent document CN220391380U discloses an AGV, which comprises a base, a storage space formed by a baffle arranged on the base, and openings at both ends of the storage space in the conveying direction; two conveying mechanisms are arranged in the storage space in sequence, each conveying mechanism comprising a conveying motor, a transmission assembly, and a conveying belt assembly, the output end of the conveying motor being connected to the input end of the transmission assembly, and the output end of the transmission assembly being connected to the input end of the conveying belt assembly, the conveying motor being configured to drive the conveying belt assembly to move so as to convey the material on the conveying belt assembly to the next station, and the openings at both ends of the storage space in the conveying direction are used for loading and unloading, making the operation more convenient and fast.

[0004] In the prior art of the above patent document, the transportation process of the trolley is divided into three processes of loading, storing and transporting, and unloading. Common trolleys are divided into open-air type and carriage protection type. Chlorantraniliprole, as a pesticide, needs to be protected during transportation. However, this requires workers to load it from the conveying belt during the loading and unloading processes. During storage, due to the interference of the protective carriage, the stacking robot cannot directly grab it, and manual unloading is required before the stacking robot can stack and store it, which is relatively cumbersome and increases the workload. SUMMARY

[0005] To overcome the deficiencies of the prior art, the present application provides a chlorantraniliprole wet material conveying device based on an automatic guided vehicle, which solves the problems raised in the background art.

[0006] To achieve the above purpose, the present application realizes the following technical scheme: a chlorantraniliprole wet material conveying device based on an automatic guided vehicle, comprising a vehicle body and a carriage fixedly installed on the vehicle body, and further comprising a conveying module.

[0007] The docking assembly comprises a docking module, a roller group module and a positioning module, the docking module comprises lifting grooves opened on both sides of the carriage, and a T-shaped block and a rotating shaft movably installed in the lifting grooves, a protective plate is fixedly installed on the T-shaped block, and the docking assembly changes from a protection state to a docking state during feeding and discharging, so that automatic feeding and discharging can be realized and the work efficiency is improved.

[0008] Preferably, the roller group module comprises a high-position roller group fixedly installed on one side of the protective plate, and a first mounting frame arranged on the other side of the protective plate, a low-position roller group is movably installed in the first mounting frame, a fixed frame is fixedly installed on the surface of the protective plate, a first electric push rod is fixedly installed on the fixed frame, a jacking frame is fixedly installed on the output shaft of the first electric push rod, and the jacking frame is fixedly connected with the first mounting frame through the protective plate.

[0009] Preferably, the positioning module comprises handles fixedly installed on both sides of the protective plate, a solid protrusion is arranged at one end of the handle, and a positioning bolt is threadedly connected to the handle.

[0010] Preferably, the conveying module comprises a mounting frame and a conveying belt arranged on the inner side of the mounting frame.

[0011] Preferably, the conveying assembly further comprises a stroke compensation module and a conveying module, the stroke compensation module comprises a drive box fixedly installed on the top of the carriage, and a servo motor fixedly installed on the inner side of the drive box, a lead screw is fixedly installed on the output shaft of the servo motor, a screw sleeve is spirally connected to the outer surface of the lead screw, and a second electric push rod is fixedly installed at the bottom of the screw sleeve.

[0012] Preferably, the conveying module comprises a second mounting frame fixedly installed on the output shaft of the second electric push rod, a push plate is hingedly connected to the bottom of the second mounting frame, a third electric push rod is fixedly installed on one side of the second mounting frame, a fourth electric push rod is fixedly installed on the other side of the second mounting frame, and the third electric push rod and the fourth electric push rod are respectively arranged on the two sides of the push plate.

[0013] Preferably, the jacking assembly further comprises a bidirectional hydraulic cylinder fixedly installed on the upper surface of the vehicle body, and a driving block fixedly installed on the output shaft of the bidirectional hydraulic cylinder, a jacking rod is movably installed on the driving block, and a bearing table is movably installed at the other end of the jacking rod.

[0014] Preferably, a hollow protrusion is fixedly installed on one side of the vehicle body, a support member is arranged on the hollow protrusion, the middle part of the support member is hollow, and a pressing rod is fixedly installed on the jacking frame.

[0015] Preferably, a lock core is fixedly installed on the jacking frame, and a lock groove is arranged on the support member.

[0016] Preferably, a screw rod is threadedly connected to the carriage, and a circular block is fixedly installed at one end of the screw rod, and a clamping plate is movably installed on the outer surface of the circular block.

[0017] In the above technical solution, the beneficial effects of the present application are: through the transportation form and the docking form of the docking assembly, the product can be quickly fed and discharged by docking the conveying belt and the stacking robot, the operation efficiency is improved, the artificial load is reduced, the product is protected and fixed during transportation, the transportation safety is improved, the vehicle-mounted tools are reduced through the change of the structure form, and the transportation space is increased.

[0018] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory, rather than restrictive, of the present disclosure.

[0019] The present application file provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the transportation state of the present application;

[0021] Figure 2 It is a structural schematic diagram of the internal structure of the present application Figure One ;

[0022] Figure 3 It is a structural schematic diagram of the docking state of the present application Figure One ;

[0023] Figure 4 It is a structural schematic diagram of the docking state of the present application Figure Two ;

[0024] Figure 5 It is a structural schematic diagram of the internal structure of the present application Figure Two ;

[0025] Figure 6 It is a structural schematic diagram of the conveying module of the present application;

[0026] Figure 7 It is a sectional structural schematic diagram of the clamping plate of the present application;

[0027] Figure 8 It is a structural schematic diagram of the docking state of the present application Figure Three ;

[0028] Figure 9 It is a sectional structural schematic diagram of the carriage of the present application;

[0029] Figure 10 It is a partial enlarged structural schematic diagram of A in the present application Figure 9 ;

[0030] Figure 11 For the invention Figure 1 The local enlarged structure schematic view at B in the invention;

[0031] Figure 12 For the invention Figure 3 The local enlarged structure schematic view at C in the invention.

[0032] In the figure: 1, vehicle body; 11, vehicle compartment; 2, protective plate; 21, T-shaped block; 22, rotating shaft; 23, lifting groove; 24, high-position roller set; 25, first mounting frame; 26, low-position roller set; 27, fixed frame; 28, first electric push rod; 29, jacking frame; 210, handle; 211, positioning bolt; 212, mounting frame; 213, conveying belt; 3, drive box; 31, servo motor; 32, lead screw; 33, screw sleeve; 34, limiting block; 35, second electric push rod; 36, second mounting frame; 37, push plate; 38, third electric push rod; 39, fourth electric push rod; 310, driving groove; 4, bidirectional hydraulic cylinder; 41, driving block; 42, guide column; 43, jacking rod; 44, bearing table; 5, hollow boss; 51, support; 52, lock groove; 53, lock core; 6, pressing rod; 7, screw rod; 71, round block; 72, clamping plate. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all.

[0034] Embodiment 1: Please refer to Figures 1 to 10 The present application provides a technical solution: a chlorantraniliprole wet material conveying device based on an automatic guided vehicle, which comprises a vehicle body 1 and a vehicle compartment 11 fixedly installed on the vehicle body 1, and further comprises a conveying module;

[0035] The docking assembly comprises a docking module, a roller set module, and a positioning module. The docking module comprises lifting grooves 23 opened on both sides of the vehicle compartment 11, and T-shaped blocks 21 and rotating shafts 22 movably installed in the lifting grooves 23. The T-shaped blocks 21 are fixedly installed with protective plates 2. When loading and unloading, the docking assembly changes from a protective state to a docking state, which can realize automatic loading and unloading and improve work efficiency.

[0036] The roller set module comprises a high-position roller set 24 fixedly installed on one side of the protective plate 2, and a first mounting frame 25 arranged on the other side of the protective plate 2. The first mounting frame 25 movably installs a low-position roller set 26. The surface of the protective plate 2 is fixedly installed with a fixed frame 27. The fixed frame 27 is fixedly installed with a first electric push rod 28. The output shaft of the first electric push rod 28 is fixedly installed with a jacking frame 29. The jacking frame 29 penetrates through the protective plate 2 and is fixedly connected with the first mounting frame 25.

[0037] The positioning module comprises handles 210 fixedly installed on both sides of the protective plate 2, one end of the handle 210 is provided with a solid protrusion, and a positioning bolt 211 is threadedly connected to the handle 210.

[0038] The conveying module comprises a mounting frame 212 and a conveying belt 213 arranged on the inner side of the mounting frame 212.

[0039] The conveying assembly further comprises a stroke compensation module and a conveying module, the stroke compensation module comprises a drive box 3 fixedly installed on the top of the carriage 11 and a servo motor 31 fixedly installed on the inner side of the drive box 3, an output shaft of the servo motor 31 is fixedly installed with a lead screw 32, an outer surface of the lead screw 32 is screw-connected with a threaded sleeve 33, and the bottom of the threaded sleeve 33 is fixedly installed with a second electric push rod 35.

[0040] The conveying module comprises a second mounting frame 36 fixedly installed on the output shaft of the second electric push rod 35, the second mounting frame 36 is hingedly connected with a push plate 37 at the bottom, a third electric push rod 38 is fixedly installed on one side of the second mounting frame 36, a fourth electric push rod 39 is fixedly installed on the other side of the second mounting frame 36, and the third electric push rod 38 and the fourth electric push rod 39 are respectively located on both sides of the push plate 37.

[0041] The jacking assembly further comprises a bidirectional hydraulic cylinder 4 fixedly installed on the upper surface of the vehicle body 1 and a driving block 41 fixedly installed on the output shaft of the bidirectional hydraulic cylinder 4, the driving block 41 is movably installed with a jacking rod 43, and the other end of the jacking rod 43 is movably installed with a bearing table 44.

[0042] Specifically, the rotating shaft 22 is fixedly installed on one side of the T-shaped block 21, the protective plate 2 is movably connected with the carriage 11 through the T-shaped block 21, in the transportation process, the protective plate 2 is in a vertical state, cooperates with the carriage 11 to protect the chlorantraniliprole wet material, and the safety of conveying is improved; in the feeding process, the handle 210 is pulled upwards to drive the protective plate 2 to move upwards, so that the T-shaped block 21 slides to the gap on the upper side of the carriage 11, as shown in FIG. d of the drawings, Figure 1 then the protective plate 2 is turned outward by ninety degrees, at this time, the T-shaped block 21 changes from the vertical state to the transverse state, and after turning, the height of the protrusion on one side is greater than the width, as shown in FIG. e of the drawings, Figure 10The position of a and b shown in the middle is limited by the rotating shaft 22, which can interfere with the positioning of the T-shaped block 21, so that the protective plate 2 follows the overturning and is in a transverse state; then the driving vehicle body 1 makes the handle 210 on both sides of the conveying belt 213 and aligns it with the mounting frame 212, a screw hole matched with the positioning bolt 211 can be opened on the mounting frame 212, and the protective plate 2 is positioned by the positioning bolt 211 and the screw hole, so that the mounting frame 212 is aligned with the high-position roller group 24 to achieve the purpose of butt joint, which can directly make the finished product of chlorantraniliprole wet material on the conveying belt 213 transported to the high-position roller group 24, and under the action of inertia, the finished product of chlorantraniliprole wet material will move from the high-position roller group 24 to the low-position roller group 26, when in the transportation state, the servo motor 31 is started to drive the lead screw 32 to rotate, so that the nut 33 drives the second electric push rod 35 to move, and the two sides of the nut 33 are also fixedly installed with limiting blocks 34, and the inner side of the driving box 3 is provided with a sliding groove matched with the limiting blocks 34 for limiting the nut 33, and the driving box 3 and the carriage 11 are also provided with a driving groove 310 for moving the second mounting frame 36 driven by the second electric push rod 35, so that the push plate 37 is close to one side of the protective plate 2 for protection; when feeding, first start the fourth electric push rod 39 to limit one side of the push plate 37, and then start the second electric push rod 35 to drive the push plate 37 to move, and in the moving process, the push plate 37 will contact the finished product of chlorantraniliprole wet material, and due to the different heights of the high-position roller group 24 and the low-position roller group 26, a step is formed, and under the limitation of the step, the push plate 37 will overturn unidirectionally and pass the finished product of chlorantraniliprole wet material, and then the push plate 37 is reset and drives the finished product of chlorantraniliprole wet material to move to the inner side of the carriage 11 for feeding; before feeding, the bidirectional hydraulic cylinder 4 needs to be started to drive the driving block 41, the inner side of the carriage 11 is fixedly installed with a guide column 42, and the guide column 42 is movably installed with the driving block 41 for guiding the driving block 41, and when the driving block 41 is driven, the jacking rod 43 will jack the bearing table 44, so that the bearing table 44 is flush with the low-position roller group 26, and the push plate 37 will drive the finished product of chlorantraniliprole wet material to move to the bearing table 44, when the first layer of finished product of chlorantraniliprole wet material on the bearing table 44 is full, the bidirectional hydraulic cylinder 4 is started to drive the bearing table 44 to descend, so that the top of the first layer of finished product of chlorantraniliprole wet material is flush with the low-position roller group 26, so that the feeding can be repeated until the carriage 11 is full; when the carriage 11 is full, the protective plate 2 needs to be reset to the protection state from the butt joint state in the transportation state, and the driving vehicle body 1 can be transported;

[0043] Example 2, please refer to Figures 1 to 4 , Figure 11 and Figure 12 , one side of the vehicle body 1 is fixedly installed with a hollow boss 5, the hollow boss 5 is provided with a support 51, the middle part of the support 51 is hollow, and the jacking frame 29 is fixedly installed with a pressing rod 6.

[0044] A lock core 53 is fixedly mounted on the lifting frame 29 , and a lock slot 52 is formed on the supporting member 51 .

[0045] A screw rod 7 is threadedly connected to the carriage 11 , a round block 71 is fixedly mounted on one end of the screw rod 7 , and a clamping plate 72 is movably mounted on the outer surface of the round block 71 .

[0046] On the basis of Example 1, after the warehouse is full, before the transportation process, the push plate 37 can be driven to make it contact with the finished chlorantraniliprole wet material, and then the screw 7 is twisted to drive the clamping plate 72 to move, and the push plate 37 is cooperated to clamp the finished chlorantraniliprole wet material to further improve the transportation safety; when unloading, the protective plate 2 needs to be changed from the protective state to the docking state again to facilitate the unloading of the stacking robot. When loading, one end of the protective plate 2 is fixed to the mounting frame 212 by the handle 210, and the mounting frame 212 can support the protective plate 2. When unloading, the protective plate 2 can be supported by placing the support member 51 to an inclined state, as shown in the attached manual. Figure 2 and 3 As shown, the pressure rod 6 is placed in the hollow position in the middle, and then the first electric push rod 28 is started to make the lifting frame 29 drive the first installation frame 25 to rise, so that the low roller group 26 is flush with the high roller group 24, removing the step to facilitate unloading. At the same time, the pressure rod 6 will rise with the lifting frame 29 to fix the top of the support member 51 and improve the stability of the support member 51. Figure 12 On the other hand, when the protective plate 2 is reset to the protective state for transportation, the V-shaped spring pieces on both sides of the head of the lock cylinder 53 are passed through the lock groove 52, and the hollow boss 5 is used to lock the protective plate 2 and fix the support member 51 to further improve the transportation safety, as shown in the attached manual. Figure 1 and 11 As shown; when the protective plate 2 is changed to the docking state, it is necessary to reset the splint 72 to release the clamping of the finished chlorantraniliprole wet material, and then start the fourth electric push rod 39 to reset, and start the third electric push rod 38 to limit the other side of the push plate 37. At this time, the push plate 37 flips over and changes the push plate 37 from the loading state to the unloading state, and the servo motor 31 drives the lead screw 32 to rotate so that the screw sleeve 33 drives the push plate 37 to move to the side of the carriage 11 close to the splint 72 to push the finished chlorantraniliprole wet material onto the low roller group 26 and the high roller group 24. At this time, the palletizing robot is no longer interfered with by the carriage 11, and can conveniently unload the material, thereby improving the palletizing efficiency. When the push plate 37 is close to the splint 72, the second electric push rod 35 will move out of the carriage 11 through the drive slot 310 to compensate for the stroke of the push plate 37;

[0047] In summary, in use, before feeding, the vehicle body 1 needs to be driven to the conveying belt 213, then the protective plate 2 is changed from the protection state to the docking state, and the handle 210 is docked with the mounting frame 212, then the positioning bolt 211 is tightened to fix the handle 210 and the mounting frame 212, avoiding movement of the vehicle body 1 during feeding, and positioning the protective plate 2 to dock with the conveying belt 213 smoothly, at this time the handle 210 supports the end of the protective plate 2, and this process can not need to use the supporting piece 51 to support, then the bidirectional hydraulic cylinder 4 is started to drive the driving block 41 to move, so that the jacking rod 43 jacks up the bearing table 44 to the low roller group 26, at this time the finished product chlorantraniliprole wet material on the conveying belt 213 enters the high roller group 24 and moves to the low roller group 26 by inertia, then the fourth electric push rod 39 is started to limit one side of the push plate 37, and the second electric push rod 35 is started to drive the push plate 37 to move, so that the finished product chlorantraniliprole wet material on the low roller group 26 is conveyed to the bearing table 44, and the bearing table 44 is lowered gradually to complete feeding, after feeding is completed, the servo motor 31 is started to drive the push plate 37 to contact the finished product chlorantraniliprole wet material, then the screw rod 7 is twisted to drive the clamping plate 72 to move, and the push plate 37 is clamped, then the protective plate 2 is reset, and the lock core 53 is in the lock slot 52, in this process, the V-shaped head of the lock core 53 is retracted to release, and the locking of the protective plate 2 is completed, then it is transported to the warehouse, when reaching the warehouse, the protective plate 2 is changed from the protection state to the docking state during transportation, then the supporting piece 51 is used to support the protective plate 2, and the pressing rod 6 is in the center of the supporting piece 51, then the first electric push rod 28 is started to drive the first mounting frame 25 to rise, so that the low roller group 26 is flush with the high roller group 24, and the pressing rod 6 fixes the supporting piece 51, then the discharging is started, before discharging, the fourth electric push rod 39 needs to be reset, the third electric push rod 38 is started to limit the other side of the push plate 37, so that the push plate 37 is changed from the feeding state to the discharging state, then the servo motor 31 and the second electric push rod 35 are started to drive the push plate 37 to discharge, so as to achieve the purpose.

[0048] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A chlorantraniliprole wet material conveying device based on an automatic guided vehicle, comprising a vehicle body (1) and a carriage (11) fixedly mounted on the vehicle body (1), and also comprising a conveying module, characterized in that: A docking assembly comprises a docking module, a roller group module and a positioning module. The docking module comprises lifting grooves (23) provided on both sides of a carriage (11), and a T-shaped block (21) and a rotating shaft (22) movably mounted in the lifting grooves (23). A protective plate (2) is fixedly mounted on the T-shaped block (21). When loading and unloading materials, the docking assembly is changed from a protective state to a docking state, thereby realizing automatic loading and unloading and improving operation efficiency.

2. The chlorantraniliprole wet material conveying device based on an automatic guided vehicle according to claim 1, characterized in that: The roller group module includes a high-position roller group (24) fixedly mounted on one side of the protective plate (2), and a first mounting frame (25) arranged on the other side of the protective plate (2), wherein a low-position roller group (26) is movably mounted in the first mounting frame (25), a fixed frame (27) is fixedly mounted on the surface of the protective plate (2), a first electric push rod (28) is fixedly mounted on the fixed frame (27), a lifting frame (29) is fixedly mounted on the output shaft of the first electric push rod (28), and the lifting frame (29) passes through the protective plate (2) and is fixedly connected to the first mounting frame (25).

3. The chlorantraniliprole wet material conveying device based on an automatic guided vehicle according to claim 1, characterized in that: The positioning module comprises a handle (210) fixedly mounted on both sides of the protective plate (2), one end of the handle (210) is provided with a solid bump, and a positioning bolt (211) is threadedly connected to the handle (210).

4. The chlorantraniliprole wet material conveying device based on an automatic guided vehicle according to claim 1, characterized in that: The conveying module comprises a mounting frame (212) and a conveying belt (213) arranged inside the mounting frame (212).

5. The chlorantraniliprole wet material conveying device based on an automatic guided vehicle according to claim 1, characterized in that: The vehicle further comprises a conveying assembly, which comprises a stroke compensation module and a conveying module. The stroke compensation module comprises a drive box (3) fixedly mounted on the top of the carriage (11), and a servo motor (31) fixedly mounted on the inner side of the drive box (3). A lead screw (32) is fixedly mounted on the output shaft of the servo motor (31). A screw sleeve (33) is spirally connected to the outer surface of the lead screw (32). A second electric push rod (35) is fixedly mounted on the bottom of the screw sleeve (33).

6. The chlorantraniliprole wet material conveying device based on an automatic guided vehicle according to claim 5, characterized in that: The conveying module comprises a second mounting frame (36) fixedly mounted on the output shaft of the second electric push rod (35), a push plate (37) being hingedly connected to the bottom of the second mounting frame (36), a third electric push rod (38) being fixedly mounted on one side of the second mounting frame (36), and a fourth electric push rod (39) being fixedly mounted on the other side, and the third electric push rod (38) and the fourth electric push rod (39) being respectively located on both sides of the push plate (37).

7. The chlorantraniliprole wet material conveying device based on an automatic guided vehicle according to claim 1, characterized in that: It also includes a lifting assembly, which includes a two-way hydraulic cylinder (4) fixedly mounted on the upper surface of the vehicle body (1), and a driving block (41) fixedly mounted on the output shaft of the two-way hydraulic cylinder (4), a lifting rod (43) movably mounted on the driving block (41), and a supporting platform (44) movably mounted on the other end of the lifting rod (43).

8. The chlorantraniliprole wet material conveying device based on an automatic guided vehicle according to claim 2, characterized in that: A hollow boss (5) is fixedly mounted on one side of the vehicle body (1), a support member (51) is provided on the hollow boss (5), and the middle portion of the support member (51) is hollow, and a pressure rod (6) is fixedly mounted on the jacking frame (29).

9. The chlorantraniliprole wet material conveying device based on an automatic guided vehicle according to claim 8, characterized in that: A lock core (53) is fixedly mounted on the lifting frame (29), and a lock slot (52) is provided on the support member (51).

10. The chlorantraniliprole wet material conveying device based on an automatic guided vehicle according to claim 1, characterized in that: A screw rod (7) is threadedly connected to the carriage (11), a round block (71) is fixedly mounted on one end of the screw rod (7), and a clamping plate (72) is movably mounted on the outer surface of the round block (71).

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