CN113855307A

CN113855307A - Animal doctor raiss livestock or poultry with inoculation epidemic prevention medicine feed device

Info

Publication number: CN113855307A
Application number: CN202111068698.7A
Authority: CN
Inventors: 刘兵; 李肖; 王艳; 陈萍; 岳庆磊
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2021-12-31

Abstract

The invention discloses an inoculation and epidemic prevention medicine feeding device for veterinarian livestock raising, which comprises a main body, a stool, a first support rod, a second support rod, a swinging rod, an incomplete gear, a pedal, a lower spring, a connecting rod, a guide groove, a support arm, a support plate, a third support rod, a gearwheel, a transmission part and a dripping part, wherein the stool is fixed at the front part of the main body, the first support rod and the second support rod are fixed at the rear part of the main body, and the swinging rod is hinged in the middle of the first support rod. The invention integrates various inoculation methods and medication methods, can meet the operation of nose dropping, eye dropping and drinking only by synchronous operation of hands, eyes and feet of one person, can reduce struggle degree of poultry, prevents waste caused by mistaken dropping and sliding of vaccine liquid or liquid medicine, greatly improves operation efficiency, enhances inoculation effect, and can be adjusted adaptively according to different required doses.

Description

Animal doctor raiss livestock or poultry with inoculation epidemic prevention medicine feed device

Technical Field

The invention relates to the field of animal husbandry, in particular to an inoculation and epidemic prevention medicine feeding device for veterinary husbandry.

Background

In the process of poultry breeding, when the bred poultry reaches a certain amount, the poultry should be vaccinated from the perspective of epidemic prevention, while in the existing vaccination modes, injection vaccination, drinking vaccination, nasal drip vaccination, eye drop vaccination and the like are common vaccination modes, for some vaccines, a plurality of vaccination modes can be adopted for vaccination, but some vaccines can only be vaccinated by using a certain specific vaccination mode, for some vaccines which can be vaccinated by nasal drip, eye drop and drinking a plurality of vaccination modes, when mass poultry needs to be vaccinated, drinking vaccination is preferred because drinking vaccination has the characteristics of high efficiency and easy operation compared with other vaccination modes, but drinking vaccination also has the problems of difficult control of vaccination dosage, easy occurrence of vaccination omission and ineffective vaccines and the like, therefore, the inoculation effect is poor, and although the selected other inoculation methods (such as nasal drip, eye dropping, injection and the like) can ensure the inoculation effect, the efficiency is low often, and the two persons are required to cooperate to be carried out, especially for some poultry with larger body size, the poultry can struggle violently when being inoculated, thereby bringing troubles (such as inaccurate drop position of vaccine, breakage of an injection needle and the like) to the inoculation work, and highlighting the defects of the traditional inoculation work.

Disclosure of Invention

The invention aims to provide an inoculation and epidemic prevention medicine feeding device for veterinary husbandry, which aims to solve the technical problems.

In order to achieve the purpose, the invention adopts the following technical scheme:

an inoculation and epidemic prevention medicine feeding device for veterinarian livestock comprises a main body, a stool, a first support rod, a second support rod, a swing rod, an incomplete gear, a pedal, a lower spring, a connecting rod, a guide groove, a support arm, a support plate, a third support rod, a gear wheel, a transmission part and a dripping part, wherein the front part of the main body is fixed with the stool, the rear part of the main body is fixed with the first support rod and the second support rod, the middle part of the first support rod is hinged with the swing rod, the front part of the swing rod is fixed with the incomplete gear, the middle part of the second support rod is hinged with the pedal, the bottom end of the pedal is fixed with the lower spring, the bottom end of the lower spring is fixed with the bottom part of the main body, the rear part of the pedal is hinged with the connecting rod, the upper parts of the two connecting rods are hinged with the rear part of the swing rod, the left end and the right end of the main body are respectively fixed with guide grooves, and the support arms are respectively connected in the guide grooves in a sliding manner, two the support arm front end is fixed with the backup pad jointly, main part upper portion is fixed with No. three bracing pieces, No. three bracing pieces middle parts are connected with the gear wheel through the bearing rotation, main part upper portion is installed the transmission part and is dripped into the part.

On the basis of the technical scheme, the transmission part comprises a supporting seat, a sliding groove, a sliding strip, a rack, a transmission arm, an adjusting screw rod, an adjusting nut, an upper spring, a thread block, a supporting groove and a dovetail rail, the supporting seat is fixed to the front end of the upper portion of the main body, the sliding groove is formed in the rear portion of the supporting seat in a penetrating mode, the sliding strip is connected in the sliding groove in a sliding mode, the rack is fixed to the rear end of the sliding strip, the transmission arm is fixed to the upper portion of the front end of the sliding strip, the adjusting screw rod is inserted into the gap in the transmission arm in an inserting mode, the adjusting nut is connected to the upper portion of the adjusting screw rod in a threaded mode, the upper spring is fixed to the bottom end of the transmission arm, the thread block is fixed to the bottom end of the upper spring, the thread block is rotatably connected with the bottom of the adjusting screw rod, the supporting groove is formed in the left portion and the right portion of the supporting seat in a penetrating mode, and the dovetail rail is fixed to the rear portion of the supporting seat.

On the basis of the technical scheme, the dripping part comprises a sliding seat, a puller bolt, a supporting cylinder, a limiting groove, an observation groove, a spiral ring, an expansion frame, a hollow dripping cylinder, a rubber piston sleeve, a hard piston sleeve, a scale bar, a nipple, a head, a flexible guide sheet, a connecting nozzle, a liquid storage bag, a vent pipe, a filter core, a supporting shaft and a night vision device, wherein the front part of the dovetail rail is connected with the sliding seat in a sliding way, the upper part of the sliding seat is connected with the puller bolt in a threaded way, the puller bolt penetrates through the upper part of the sliding seat, the front end of the bottom of the sliding seat is fixed with the supporting cylinder, the front part of the supporting cylinder is provided with the limiting groove and the observation groove, the upper part of the supporting cylinder is connected with the spiral ring in a threaded way, the expansion frame is fixed at the bottom of the supporting cylinder, the hollow dripping cylinder is inserted in a gap, the rubber piston sleeve is connected in a sliding way inside the hollow cylinder, the hard piston sleeve is fixed in the rubber piston sleeve, instil into empty section of thick bamboo front portion and be equipped with the scale strip, instil into empty bobbin bottom mounting and be had the nipple of instiling into, instil into nipple bottom threaded connection and have the head of instiling into, instil into a head bottom mounting and be had flexible guide piece, instil into empty bobbin left end bottom and be fixed with the connection mouth, connection mouth left part threaded connection has the reservoir, reservoir upper portion is fixed with the breather pipe, the breather pipe left end is fixed with the filter core, two the back shaft has been placed jointly in the support inslot, the back shaft middle part is fixed with the night-vision device, instil into empty bobbin and be linked together through instiling into head and filter core and external.

On the basis of the technical scheme, the incomplete gear is engaged with the gear wheel all the time, the supporting arm can slide around the guide way, the gear wheel is engaged with the rack all the time, the pedal can drive the swinging rod to swing up and down along a supporting rod through the connecting rod after being pressed down, the supporting rod can drive the sliding strip to slide up and down along the sliding groove through the engagement of the incomplete gear and the gear wheel and the engagement of the large gear and the rack when swinging up and down, the adjusting screw can move up and down along the driving arm under the elastic action of the upper spring, the sliding seat can slide up and down along the dovetail rail and can be fastened on different positions of the dovetail rail through the manually-rotated puller bolt, the dropping hollow cylinder is tightly jacked in the supporting cylinder through the spiral ring, the hard piston sleeve can be connected with the thread block through threads, the connecting mouth can be spliced with the limiting groove, the support shaft can rotate in the support groove.

Compared with the prior art, the invention has the following advantages: the invention integrates various inoculation methods and medication methods, can meet the operation of nose dropping, eye dropping and drinking only by synchronous operation of hands, eyes and feet of one person, can reduce struggle degree of poultry, prevents waste caused by mistaken dropping and slipping of vaccine liquid or liquid medicine, greatly improves operation efficiency, enhances inoculation effect, can be adjusted adaptively according to different required doses, and the use of the stool, the support plate and the night vision device ensures that the operation process is more comfortable and accurate and meets use requirements.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the installation of the night vision device of the present invention.

Fig. 3 is a schematic view of the installation of the slide bar and the slide base of the present invention.

Fig. 4 is a schematic view of the installation of the rigid piston sleeve of the present invention.

FIG. 5 is a schematic view of the attachment of the toroid and reservoir of the present invention.

Fig. 6 is a schematic view showing the installation of the dropping empty cartridge and the dropping head of the present invention.

In the figure: 1. a main body, 2, a stool, 3, a first support rod, 4, a second support rod, 5, a swinging rod, 6, an incomplete gear, 7, a pedal, 8, a lower spring, 9, a connecting rod, 10, a guide groove, 11, a support arm, 12, a support plate, 13, a third support rod, 14, a gearwheel, 15, a transmission part, 16, a dropping part, 17, a support seat, 18, a sliding groove, 19, a sliding strip, 20, a rack, 21, a transmission arm, 22, an adjusting screw, 23, an adjusting nut, 24, an upper spring, 25, a thread block, 26, a support groove, 27, a dovetail rail, 28, a sliding seat, 29, a puller bolt, 30, a support cylinder, 31, a limit groove, 32, an observation groove, 33, a spiral ring, 34, an expansion frame, 35, a dropping empty cylinder, 36, a rubber piston sleeve, 37, a piston hard sleeve, 38, a scale bar, 39, a dropping, 40, a dropping head, 41 and a flexible guide sheet, 42. a connecting nozzle 43, a liquid storage bag 44, a vent pipe 45, a filter element 46, a support shaft 47 and a night vision device.

Detailed Description

The invention is explained in further detail below with reference to the figures and the specific embodiments.

As shown in fig. 1-6, an inoculation and epidemic prevention medicine feeding device for veterinary husbandry comprises a main body 1, a stool 2, a first support rod 3, a second support rod 4, a swing rod 5, an incomplete gear 6, a pedal 7, a lower spring 8, a connecting rod 9, a guide groove 10, a support arm 11, a support plate 12, a third support rod 13, a gearwheel 14, a transmission part 15 and a dripping part 16, wherein the stool 2 is fixed at the front part of the main body 1, the first support rod 3 and the second support rod 4 are fixed at the rear part of the main body 1, the swing rod 5 is hinged at the middle part of the first support rod 3, the incomplete gear 6 is fixed at the front part of the swing rod 5, the pedal 7 is hinged at the middle part of the second support rod 4, so as to better tread the pedal 7, anti-skid lines can be processed on the surface of the pedal 7, the lower spring 8 is fixed at the bottom end of the pedal 7, the bottom end of the lower spring 8 is fixed at the bottom of the main body 1, the 7 rear portions of footboard articulate there is connecting rod 9, two connecting rod 9 upper portion is articulated mutually with 5 rear portions of swinging arms, both ends respectively are fixed with guide way 10, two about main part 1 each sliding connection has support arm 11, two in the guide way 10 support arm 11 front end is fixed with backup pad 12 jointly, backup pad 12 passes through support arm 11 and can slides along guide way 10 front and back to the convenient arm to the staff supports, 1 upper portion of main part is fixed with No. three bracing pieces 13, No. three bracing pieces 13 middle part is connected with gear wheel 14 through the bearing rotation, 1 upper portion of main part installs transmission part 15 and instils into part 16.

The transmission part 15 comprises a supporting seat 17, a sliding groove 18, a sliding strip 19, a rack 20, a transmission arm 21, an adjusting screw 22, an adjusting nut 23, an upper spring 24, a thread block 25, a supporting groove 26 and a dovetail rail 27, the supporting seat 17 is fixed at the front end of the upper part of the main body 1, the sliding groove 18 penetrates through the rear part of the supporting seat 17, the sliding strip 19 is connected in the sliding groove 18 in a sliding way, the sliding strip 19 can slide up and down along the sliding groove 18, the rack 20 is fixed at the rear end of the sliding strip 19, the transmission arm 21 is fixed at the upper part of the front end of the sliding strip 19, the adjusting screw 22 is inserted in the gap inside the transmission arm 21, the adjusting nut 23 is connected at the upper part of the adjusting screw 22 in a threaded way, the upper spring 24 is fixed at the bottom end of the transmission arm 21, the thread block 25 is fixed at the bottom end of the upper spring 24, and the thread block 25 is rotatably connected with the bottom part of the adjusting screw 22, support grooves 26 are respectively arranged at the left part and the right part of the support seat 17 in a penetrating way, and dovetail rails 27 are fixed at the rear part of the support seat 17.

The dripping part 16 comprises a sliding seat 28, a puller bolt 29, a supporting cylinder 30, a limiting groove 31, an observation groove 32, a spiral ring 33, an expansion frame 34, a dripping empty cylinder 35, a rubber piston sleeve 36, a hard piston sleeve 37, a scale strip 38, a dripping nipple 39, a dripping head 40, a flexible guide sheet 41, a connecting nozzle 42, a liquid storage bag 43, a vent pipe 44, a filter core 45, a supporting shaft 46 and a night vision device 47, wherein the front part of the dovetail rail 27 is connected with the sliding seat 28 in a sliding way, the upper part of the sliding seat 28 is connected with the puller bolt 29 in a threaded way, two the puller bolt 29 penetrates through the upper part of the sliding seat 28, the front end of the bottom part of the sliding seat 28 is fixed with the supporting cylinder 30, the front part of the supporting cylinder 30 is provided with the limiting groove 31 and the observation groove 32, the observation groove 32 is convenient for observing the scale strip 38 dripped on the empty cylinder 35, the upper part of the supporting cylinder 30 is connected with the spiral ring 33 in a threaded way, the bottom end of the supporting cylinder 30 is fixed with the expansion frame 34, the expanding frame 34 is used for supporting and expanding the upper beak and the lower beak, an instilling hollow cylinder 35 is inserted into the gap inside the supporting cylinder 30, a rubber piston sleeve 36 is slidably connected inside the instilling hollow cylinder 35, a hard piston sleeve 37 is fixed inside the rubber piston sleeve 36, the hard piston sleeve 37 is used for supporting the rubber piston sleeve 36, a scale strip 38 is arranged at the front part of the instilling hollow cylinder 35, the instilling hollow cylinder 35 is made of a transparent material for observing the instilling hollow cylinder 35 through the scale strip 38, an instilling nipple 39 is fixed at the bottom end of the instilling hollow cylinder 35, an instilling head 40 is connected to the bottom end of the instilling nipple 39 in a threaded manner, a flexible guide plate 41 is fixed at the bottom end of the instilling head 40, the bottom of the flexible guide plate 41 is of a tip structure, the liquid is guided conveniently, and a connecting nozzle 42 is fixed at the bottom of the left end of the instilling hollow cylinder 35, the left part threaded connection of connector 42 has reservoir 43, for the convenient inside inflow of empty section of thick bamboo 35 that drips into of liquid in the reservoir 43 can be fine, can be so that connector 42 to drip into empty section of thick bamboo 35 bottom and incline and drip into empty section of thick bamboo 35 and be connected, reservoir 43 upper portion is fixed with breather pipe 44, breather pipe 44 left end is fixed with filter core 45, two support shaft 46 has been placed jointly in the support groove 26, support shaft 46 middle part is fixed with night-time vision device 47, it is linked together with the external world through dripping into head 40 and filter core 45 to drip into empty section of thick bamboo 35.

Incomplete gear 6 meshes with gear wheel 14 all the time, gear wheel 14 meshes with rack 20 all the time, footboard 7 can drive swinging arms 5 along a bracing piece 3 luffing motion through connecting rod 9 after being pressed down, bracing piece 3 can drive slide bar 19 to slide from top to bottom along sliding tray 18 through the meshing of incomplete gear 6 and gear wheel 14 and the meshing of gear wheel 14 and rack 20 when luffing motion, adjusting screw 22 can reciprocate along driving arm 21 under the spring action of last spring 24, sliding seat 28 can slide from top to bottom along forked tail rail 27, and can fasten on the different positions of forked tail rail 27 through manual rotation puller bolt 29, it tightly pushes up in supporting cylinder 30 through spiro 33 to instil into empty cylinder 35, stereoplasm piston sleeve 37 can be with screw block 25 looks threaded connection, connection mouth 42 can peg graft with spacing groove 31, the support shaft 46 is rotatable within the support groove 26.

The working principle of the invention is as follows: the device is placed in a dim environment, the environment is dim, the struggle degree of poultry in the inoculation process is lighter than that of a bright environment, firstly, preparation work is carried out, the liquid storage bag 43 is taken down from the connecting nozzle 42 firstly, then vaccine or liquid medicine to be inoculated is stored in the liquid storage bag 43 and is reinstalled, then a worker sits on the stool 2, the support plate 12 is moved to a proper position to conveniently support the arm, then formal inoculation or medication work can be carried out, the pedal 7 is used for releasing the pedal, the sliding strip 19 can slide up and down along the sliding groove 18 for one time, so that the rubber piston sleeve 36 slides up and down along the dripping-in empty cylinder 35 for one time, and the size of the bottom space of the dripping-in empty cylinder 35 can be changed in the process of sliding up and down along the dripping-in the empty cylinder 35 by the rubber piston sleeve 36, then the vaccine liquid or the liquid medicine in the liquid storage bag 43 is discharged through the dropping nipple 39 and the dropping head 40 under the action of pressure and gravity, thereby realizing the functions of inoculation or medication, and the observation through the night vision device 47 can facilitate the visual object of the staff, and the flexible guide sheet 41 is contacted with the nostril of the poultry or is vertical above the eyeball, the vaccine liquid or the liquid medicine can be guided to drop, the vaccine liquid or the liquid medicine can be prevented from sliding down from the beak part and the dropping position is not accurate, the upper beak and the lower beak can be supported and expanded by leading the expansion frame 34 to be positioned between the upper beak and the lower beak of the poultry, the closing under the control of the poultry can be prevented, at the moment, the dropping head 40 is only needed to be dismounted, the oral cavity of the poultry into which the vaccine liquid and the liquid medicine are dropped can be realized by utilizing the dropping nipple 39, and in the preparation process, the position of the sliding seat 28 can be firstly adjusted through the jacking bolt 29 according to the difference of the dosage of the dropped vaccine liquid or the liquid medicine, thereby can change and drip into the position of empty section of thick bamboo 35 than rubber piston cover 36, it is inconvenient when the footboard 7 is pressed completely and unclamped the back because the reciprocal stroke of rubber piston cover 36, the event is dripped into empty section of thick bamboo 35 and has taken place to change in the position of rubber piston cover 36 relatively, the event can carry out rough adjustment to the biggest volume that gets into the liquid that drips into in the empty section of thick bamboo 35, and rethread rotation adjusting nut 23 then can adjust the position of screw block 25 for driving arm 21 under the effect of upper spring 24, adjust rubber piston cover 36 promptly and compare in the position of driving arm 21, thereby realize carrying out accurate regulation to the biggest volume that gets into the liquid that drips into in the empty section of thick bamboo 35, thereby satisfy different demands.

The foregoing is a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that variations, modifications, substitutions and alterations can be made in the embodiment without departing from the principles and spirit of the invention.

Claims

1. The utility model provides an animal doctor raiss livestock or poultry with inoculation epidemic prevention medicine feed device, includes main part (1), stool (2), bracing piece (3), No. two bracing pieces (4), swinging arms (5), incomplete gear (6), footboard (7), lower spring (8), connecting rod (9), guide way (10), support arm (11), backup pad (12), No. three bracing pieces (13), gear wheel (14), transmission part (15), instil into part (16), its characterized in that: the stool is fixed on the front portion of the main body (1), a first support rod (3) and a second support rod (4) are fixed on the rear portion of the main body (1), a swing rod (5) is hinged to the middle portion of the first support rod (3), an incomplete gear (6) is fixed on the front portion of the swing rod (5), a pedal (7) is hinged to the middle portion of the second support rod (4), a lower spring (8) is fixed to the bottom end of the pedal (7), the bottom end of the lower spring (8) is fixed to the bottom of the main body (1), a connecting rod (9) is hinged to the rear portion of the pedal (7), the upper portions of the two connecting rods (9) are hinged to the rear portion of the swing rod (5), guide grooves (10) are respectively fixed to the left end and the right end of the main body (1), support arms (11) are respectively slidably connected to the guide grooves (10), and a support plate (12) is fixed to the front ends of the support arms (11), main part (1) upper portion is fixed with No. three bracing pieces (13), No. three bracing pieces (13) middle part is rotated through the bearing and is connected with gear wheel (14), main part (1) upper portion is installed transmission part (15) and is dripped into part (16).

2. An inoculation and epidemic prevention medicine feeding device for veterinary livestock according to claim 1, characterized in that: the transmission part (15) comprises a supporting seat (17), a sliding groove (18), a sliding strip (19), a rack (20), a transmission arm (21), an adjusting screw (22), an adjusting nut (23), an upper spring (24), a thread block (25), a supporting groove (26) and a dovetail rail (27), the supporting seat (17) is fixed at the front end of the upper part of the main body (1), the sliding groove (18) penetrates through the rear part of the supporting seat (17), the sliding strip (19) is connected in the sliding groove (18) in a sliding mode, the rack (20) is fixed at the rear end of the sliding strip (19), the transmission arm (21) is fixed at the upper part of the front end of the sliding strip (19), the adjusting screw (22) is inserted in the inner gap of the transmission arm (21), the adjusting nut (23) is connected at the upper part of the adjusting screw (22) in a threaded mode, the upper spring (24) is fixed at the bottom end of the transmission arm (21), the bottom end of the upper spring (24) is fixed with a thread block (25), the thread block (25) is rotatably connected with the bottom of the adjusting screw rod (22), the left part and the right part of the supporting seat (17) are respectively penetrated with a supporting groove (26), and the rear part of the supporting seat (17) is fixed with a dovetail rail (27).

3. An inoculation and epidemic prevention medicine feeding device for veterinary livestock according to claim 1, characterized in that: the dropping part (16) comprises a sliding seat (28), a puller bolt (29), a supporting cylinder (30), a limiting groove (31), an observation groove (32), a spiral ring (33), an expansion frame (34), a dropping hollow cylinder (35), a rubber piston sleeve (36), a hard piston sleeve (37), a scale bar (38), a dropping nipple (39), a dropping head (40), a flexible guide sheet (41), a connecting nozzle (42), a liquid storage bag (43), a vent pipe (44), a filter core (45), a supporting shaft (46) and a night vision device (47), the front part of the dovetail rail (27) is connected with the sliding seat (28) in a sliding way, the upper part of the sliding seat (28) is connected with the puller bolt (29) in a threaded way, the puller bolt (29) penetrates through the upper part of the sliding seat (28), the supporting cylinder (30) is fixed at the front end of the bottom of the sliding seat (28), the front part of the supporting cylinder (30) is provided with the limiting groove (31) and the observation groove (32), the utility model discloses a drip irrigation device, including a support cylinder (30), a supporting barrel (30) upper portion threaded connection has spiro (33), a supporting barrel (30) bottom mounting has expansion frame (34), peg graft in supporting barrel (30) internal clearance and have dropwisely empty section of thick bamboo (35), dropwisely empty section of thick bamboo (35) inside sliding connection has rubber piston cover (36), rubber piston cover (36) inside is fixed with stereoplasm piston cover (37), it is equipped with scale bar (38) to drip into empty section of thick bamboo (35) front portion, it has nipple (39) to drip into empty section of thick bamboo (35) bottom mounting, it has dropwisely into head (40) to drip into nipple (39) bottom threaded connection, it has flexible guide piece (41) to drip into head (40) bottom mounting, it is fixed with connector nozzle (42) to drip into empty section of thick bamboo (35) left end bottom mounting, connector nozzle (42) left portion threaded connection has reservoir (43), reservoir (43) upper portion is fixed with breather pipe (44), breather pipe (44) left end is fixed with filter core (45), two support shaft (46) have been placed jointly in support groove (26), support shaft (46) middle part is fixed with night-time vision device (47), it is linked together with the external world through dripping into head (40) and filter core (45) to drip into empty section of thick bamboo (35).

4. An inoculation and epidemic prevention medicine feeding device for veterinary livestock according to claim 1 or 3, characterized in that: incomplete gear (6) mesh with gear wheel (14) all the time, gear wheel (14) mesh with rack (20) all the time, it tightly supports in a section of thick bamboo (30) through spiro (33) top to drip into empty section of thick bamboo (35), stereoplasm piston cover (37) can be with screw block (25) looks threaded connection, connector (42) can be pegged graft mutually with spacing groove (31), back shaft (46) can be at support groove (26) internal rotation.