Quantitative feeding mechanism for aquaculture feeding machine

Abstract

The invention relates to the technical field of aquaculture, and discloses a quantitative feeding mechanism for an aquaculture feeding machine, which comprises a crushing mechanism, the crushing mechanism comprises a crushing box, the inner wall of the crushing box is fixedly connected with a first connecting pipe, and the end, away from the crushing box, of the first connecting pipe is fixedly connected with a feeding bin; a first sliding groove is formed in the inner wall of the smashing box, a heating block is fixedly connected to the top of the smashing box, and a second connecting pipe is fixedly connected to the end, away from the feeding bin, of the smashing box. According to the feeding device, small-particle bait is metered through the quantifying mechanism, the metered small bait is discharged towards the discharging bin, in the screening and filtering stage, the heating block starts to work, the bait in the rotating frame is heated, redundant water attached to the bait due to the humid environment is removed, and then it is ensured that the bait can be kept dry.

Description

Technical Field

[0001] The present invention relates to the technical field of aquaculture, and specifically to a quantitative feeding mechanism for an aquaculture feeder. Background Art

[0002] In aquaculture, if the feeding amount is insufficient, aquatic animals will grow slowly and have poor physical condition due to lack of nutrition, affecting the yield and economic benefits. While if the feeding amount is excessive, not only will it cause waste of bait and increase costs, but the remaining bait will also rot in the water, leading to water quality deterioration, breeding bacteria and parasites, and triggering diseases in aquatic animals. Quantitative feeding can ensure that aquatic animals obtain appropriate nutrition, promote growth, maintain good water quality at the same time, create a healthy growth environment for them, and improve the breeding efficiency.

[0003] The patent application with the application number CN202111234306.X discloses a quantitative feeding device for aquaculture, including a base, a support plate, a support frame, a first bracket, a motor, a transmission shaft, a turntable, a telescopic rod and a roller. One side of the base is provided with a support plate, one side of the base is provided with a support frame, one side of the top of the support plate is provided with a first bracket, one side of the first bracket is provided with a motor, the output shaft of the motor is connected with a transmission shaft, a turntable is arranged on the transmission shaft, one side of the first bracket is provided with a telescopic rod, a spring is arranged inside the telescopic rod, and the bottom of the telescopic rod is rotatably connected with a roller.

[0004] To sum up, in the precise feeding operation of aquaculture, differences in feed particle size may cause feeding errors, and since the feeding environment is usually relatively humid, the feed is likely to adhere to the inner wall of the feeding cylinder, which may further exacerbate the deviation of quantitative feeding.

[0005] Therefore, we propose a quantitative feeding mechanism for an aquaculture feeder. Summary of the Invention

[0006] Aiming at the deficiencies of the prior art, the present invention provides a quantitative feeding mechanism for an aquaculture feeder to solve the problems raised in the above background art.

[0007] To achieve the above object, the present invention provides the following technical solution: A quantitative feeding mechanism for an aquaculture feeder, including a crushing mechanism. The crushing mechanism includes a crushing box, the inner wall of the crushing box is fixedly connected with a first connecting pipe, one end of the first connecting pipe away from the crushing box is fixedly connected with a feed bin, a first sliding groove is opened on the inner wall of the crushing box, a heating block is fixedly connected to the top of the crushing box, one end of the crushing box away from the feed bin is fixedly connected with a second connecting pipe, a first motor is fixedly connected to the outer wall of the crushing box, and the output end of the first motor penetrates through one end of the crushing box and is fixedly connected with a driving wheel. Further included are:

[0008] Filter mechanism, including a rotating frame arranged inside the crushing box. The outer wall of the rotating frame is rotatably connected with rollers through a rotating shaft. The rollers are rotatably connected inside the first sliding groove. A second sliding groove is provided on the outer surface of the rotating frame near the driving wheel. The outer wall of the crushing box near the driving wheel is rotatably connected with an auxiliary wheel through a rotating shaft. The auxiliary wheel is rotatably connected inside the second sliding groove. A toothed ring is fixedly connected to the outer surface of the rotating frame near the driving wheel. The toothed ring is meshed with the driving wheel. Filter holes are provided on the outer surface of the rotating frame. A quantitative mechanism is arranged at the bottom of the rotating frame. The filter holes are used to filter larger baits.

[0009] According to the above technical solution, a fixing plate is fixedly connected to the inner wall of the rotating frame. A second through hole is provided on the outer surface of the fixing plate. The diameter of the second through hole is the same as that of the filter hole. The second through hole is used to discharge smaller baits on the fixing plate.

[0010] According to the above technical solution, a first extrusion roller is fixedly connected to the outer wall of the driving wheel away from the crushing box. The outer wall of the crushing box near the driving wheel is fixedly connected with a driven wheel through a rotating shaft. The driven wheel is meshed with the driving wheel. A second extrusion roller is fixedly connected to the outer wall of the driven wheel away from the crushing box. The first extrusion roller and the second extrusion roller perform extrusion and crushing on larger baits through relative rotation.

[0011] According to the above technical solution, an air inlet pipe is fixedly connected to the outer wall of the crushing box. An air outlet pipe is fixedly connected to the outer wall of the crushing box away from the air inlet pipe. A first through hole is provided on the outer surface of the crushing box near the air inlet pipe and the air outlet pipe. The diameter of the first through hole is smaller than that of the filter hole to prevent the baits from flying out of the crushing box under the action of air flow.

[0012] According to the above technical solution, a fixing frame is fixedly connected to the inner wall of the crushing box. A cleaning roller is rotatably connected to the inner wall of the fixing frame through a rotating shaft. A cleaning tooth is fixedly connected to the outer wall of the fixing frame near the cleaning roller. The cleaning roller rotates to scrape off the baits attached to the outer surface of the rotating frame. The cleaning tooth scrapes the surface of the cleaning roller to prevent the accumulation of baits.

[0013] According to the above technical solution, the quantitative mechanism includes a connecting frame fixedly connected to the second connecting pipe. A second motor is fixedly connected to the outer wall of the connecting frame. The output end of the second motor penetrates through the connecting frame and is fixedly connected with a rotating block. The second motor drives the rotating block to rotate to adjust the feeding speed of the baits.

[0014] According to the above technical solution, a pressure measuring instrument is fixedly connected to the inner wall of the rotating block. The measuring end of the pressure measuring instrument is fixedly connected to a supporting plate. A spring is fixedly connected to the outer wall of the bottom of the supporting plate. One end of the spring away from the supporting plate is fixedly connected to the rotating block. The pressure measuring instrument measures the weight of the bait by detecting the sliding distance of the supporting plate. Through its elastic action, the spring resets the supporting plate to the initial position after measuring and discharging the bait.

[0015] According to the above technical solution, one end of the connecting frame away from the crushing box is fixedly connected to a discharge bin. An inclined plate is fixedly connected to the inner wall of one end of the discharge bin close to the connecting frame. A blower is fixedly connected to the outer wall of the discharge bin. The output end of the blower is fixedly connected to an air outlet. A discharge port is opened at one end of the discharge bin away from the blower. The blower generates an air flow through the air outlet and blows the bait inside the discharge bin out through the discharge port.

[0016] Compared with the prior art, the present invention provides a quantitative feeding mechanism for an aquaculture feeder, which has the following beneficial effects:

[0017] 1. By providing a quantitative feeding mechanism for an aquaculture feeder, when quantitative feeding operation is required, larger particle baits are screened out through the filtering holes provided on the outer surface of the rotating frame, and smaller particle baits are metered by the metering mechanism. The metered smaller baits are discharged towards the discharge bin. During the screening and filtering stage, the heating block starts to work to heat the baits inside the rotating frame, removing the excess moisture adhering to the baits due to the humid environment, thereby ensuring that the baits can remain dry.

[0018] 2. By providing a crushing mechanism, when the heating block heats and dries the wet baits in the crushing box, the air inlet pipe injects dry air into the crushing box to evenly cover the surface of the baits, and the wet air containing moisture is discharged out of the box through the air outlet pipe, thereby accelerating the evaporation rate of the moisture in the baits.

[0019] 3. By providing a filtering mechanism, when there are larger bait particles in the rotating frame, the driving wheel drives the rotating frame to rotate by means of the toothed ring. During the rotation process, the rotating frame shovels up the larger bait particles by relying on the fixed plate and sends them between the first squeezing roller and the second squeezing roller. Subsequently, the first squeezing roller and the second squeezing roller rotate relatively to squeeze and crush these larger bait particles, thereby improving the utilization rate of the baits.

[0020] 4. In the present invention, by providing a metering mechanism, after the rotating frame completes the bait screening, the qualified bait enters the second connecting pipe through the filtering holes under the action of gravity, and then slides towards the connecting frame. The second motor drives the rotating block to rotate, thereby adjusting the feeding speed of the bait. When the bait falls onto the tray through the second connecting pipe, the pressure measuring instrument measures the weight of the bait by detecting the sliding distance of the tray, thus achieving the quantitative feeding operation for aquaculture. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic front view of the overall structure of the present invention;

[0022] Figure 2 is a schematic rear view of the overall structure of the present invention;

[0023] Figure 3 is a schematic front sectional view of the overall structure of the present invention;

[0024] Figure 4 is a schematic view of the structure of the crushing mechanism of the present invention;

[0025] Figure 5 is a schematic view of the structure of the filtering mechanism of the present invention;

[0026] Figure 6 In the present invention Figure 4 is an enlarged schematic view of A;

[0027] Figure 7 is a schematic view of the structure of the connecting frame and the discharge bin of the present invention;

[0028] Figure 8 is a schematic view of the structure of the metering mechanism of the present invention.

[0029] In the figure: 1, crushing mechanism; 101, crushing box; 102, first connecting pipe; 103, feed bin; 104, heating block; 105, second connecting pipe; 106, first sliding groove; 107, intake pipe; 108, exhaust pipe; 109, first motor; 110, driving wheel; 111, first extrusion roller; 112, driven wheel; 113, second extrusion roller; 114, fixing frame; 115, cleaning roller; 116, cleaning teeth; 117, first through hole; 118, auxiliary wheel; 2, filtering mechanism; 201, rotating frame; 202, roller; 203, toothed ring; 204, filtering hole; 205, fixing plate; 206, second through hole; 207, second sliding groove; 3, metering mechanism; 301, connecting frame; 302, second motor; 303, rotating block; 304, pressure measuring instrument; 305, tray; 306, spring; 4, discharge bin; 5, inclined plate; 6, fan; 7, air outlet; 8, discharge port. DETAILED DESCRIPTION OF THE INVENTION

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0031] Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation of the present invention.

[0032] In the present invention, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Embodiment 1: Refer to Figures 1-8 , the present invention provides a technical solution: a quantitative feeding mechanism for an aquaculture feeder, including a crushing mechanism 1. The crushing mechanism 1 includes a crushing box 101. The inner wall of the crushing box 101 is fixedly connected with a first connecting pipe 102. One end of the first connecting pipe 102 away from the crushing box 101 is fixedly connected with a feed bin 103. A first sliding groove 106 is opened on the inner wall of the crushing box 101. The top of the crushing box 101 is fixedly connected with a heating block 104. The heating block 104 can raise the temperature in the crushing box 101 to below 60°C to remove the moisture in the bait. One end of the crushing box 101 away from the feed bin 103 is fixedly connected with a second connecting pipe 105. The outer wall of the crushing box 101 is fixedly connected with a first motor 109. The output end of the first motor 109 penetrates through one end of the crushing box 101 and is fixedly connected with a driving wheel 110. Further included are:

[0034] Filtering mechanism 2, including a rotating frame 201 arranged inside the crushing box 101. The outer wall of the rotating frame 201 is rotatably connected with a roller 202 through a rotating shaft. The roller 202 is in rolling connection inside the first sliding groove 106. A second sliding groove 207 is formed on the outer surface of the rotating frame 201 near the driving wheel 110. The outer wall of the crushing box 101 near the driving wheel 110 is rotatably connected with an auxiliary wheel 118 through a rotating shaft. The auxiliary wheel 118 is in rotating connection inside the second sliding groove 207. A toothed ring 203 is fixedly connected to the outer surface of the rotating frame 201 near the driving wheel 110. The toothed ring 203 is meshed with the driving wheel 110. Filtering holes 204 are formed on the outer surface of the rotating frame 201. A quantitative mechanism 3 is arranged at the bottom of the rotating frame 201. The filtering holes 204 are used for filtering larger baits. When carrying out the quantitative bait feeding operation, first, the bait is put into the crushing box 101 through the feeding bin 103. Then, the first motor 109 drives the driving wheel 110 to operate, driving the rotating frame 201 fixedly connected with the toothed ring 203 to rotate, so that the bait inside the frame rotates accordingly. The filtering holes 204 on the outer surface of the rotating frame 201 screen the larger baits. After the smaller baits are quantitatively operated by the quantitative mechanism 3, they are discharged towards the discharging bin 4. During the screening and filtering of the bait by the rotating frame 201, the heating block 104 simultaneously heats the bait inside the rotating frame 201 to remove the excess moisture in the damp bait.

[0035] A fixed plate 205 is fixedly connected to the inner wall of the rotating frame 201. A second through hole 206 is formed on the outer surface of the fixed plate 205. The diameter of the second through hole 206 is the same as that of the filtering hole 204. The second through hole 206 is used for discharging the smaller baits on the fixed plate 205. A first extrusion roller 111 is fixedly connected to the outer wall of the driving wheel 110 away from the crushing box 101. The outer wall of the crushing box 101 near the driving wheel 110 is fixedly connected with a driven wheel 112 through a rotating shaft. The driven wheel 112 is meshed with the driving wheel 110. A second extrusion roller 113 is fixedly connected to the outer wall of the driven wheel 112 away from the crushing box 101. When there are larger bait particles remaining in the rotating frame 201, the driving wheel 110 drives the rotating frame 201 to operate by means of the toothed ring 203. During the rotation, the rotating frame 201 shovels up the larger baits by virtue of the fixed plate 205, and then conveys them between the first extrusion roller 111 and the second extrusion roller 113. The first extrusion roller 111 and the second extrusion roller rotate relatively to crush the larger baits. The crushed bait passes through the filtering holes 204 of the rotating frame 201 and is discharged towards the quantitative mechanism 3.

[0036] The outer wall of the crushing box 101 is fixedly connected with an air inlet pipe 107. The outer wall of the crushing box 101 on the side far from the air inlet pipe 107 is fixedly connected with an air outlet pipe 108. A first through hole 117 is formed in the outer surface of the crushing box 101 near the air inlet pipe 107 and the air outlet pipe 108. The diameter of the first through hole 117 is smaller than that of the filtering holes 204, preventing the bait from flying out of the crushing box 101 under the action of air flow. When the heating block 104 heats and dries the wet bait in the crushing box 101, the air inlet pipe 107 inputs dry air into the crushing box 101, and the dry air will be evenly distributed on the surface of the bait. At the same time, the air outlet pipe 108 discharges the wet air containing water vapor, thereby accelerating the evaporation rate of the water in the bait.

[0037] A fixing frame 114 is fixedly connected to the inner wall of the crushing box 101. A cleaning roller 115 is rotatably connected to the inner wall of the fixing frame 114 through a rotating shaft. A cleaning tooth 116 is fixedly connected to the outer wall of the fixing frame 114 near the cleaning roller 115. During the period when the rotating frame 201 filters the bait, the cleaning roller 115 rotates synchronously to scrape off the bait attached to the outer surface of the rotating frame 201, and the cleaning tooth 116 scrapes the surface of the cleaning roller 115 to prevent the bait from accumulating on the cleaning roller 115.

[0038] The metering mechanism 3 includes a connecting frame 301 fixedly connected to the second connecting pipe 105. A second motor 302 is fixedly connected to the outer wall of the connecting frame 301. The output end of the second motor 302 penetrates through the connecting frame 301 and is fixedly connected with a rotating block 303. A pressure measuring instrument 304 is fixedly connected to the inner wall of the rotating block 303. The measuring end of the pressure measuring instrument 304 is fixedly connected with a tray 305. A spring 306 is fixedly connected to the bottom outer wall of the tray 305. One end of the spring 306 far from the tray 305 is fixedly connected with the rotating block 303. After the rotating frame 201 completes the bait screening operation, the screened bait will enter the second connecting pipe 105 through the filtering holes 204 under the action of gravity and slide towards the connecting frame 301. At this time, the second motor 302 drives the rotating block 303 to rotate, thereby adjusting the feeding speed of the bait. When the bait falls onto the tray 305 through the second connecting pipe 105, the pressure measuring instrument 304 measures the weight of the bait by detecting the sliding distance of the tray 305, so as to realize the metering feeding operation in aquaculture. After the measurement is completed and the bait is discharged, the spring 306 returns the tray 305 to the initial position by virtue of its elastic force.

[0039] One end of the connecting frame 301 away from the crushing box 101 is fixedly connected to a discharge bin 4. One end inner wall of the discharge bin 4 close to the connecting frame 301 is fixedly connected to an inclined plate 5. The inclined plate 5 can guide the bait falling from inside the rotating block 303 to spread outward from the discharge bin 4, preventing the bait from accumulating in the discharge bin 4. The outer wall of the discharge bin 4 is fixedly connected to a blower 6. The output end of the blower 6 is fixedly connected to an air outlet 7. A discharge port 8 is opened at one end of the discharge bin 4 away from the blower 6. After the quantitatively dried bait falls into the discharge bin 4 through the inclined plate 5, the blower 6 generates an air flow through the air outlet 7 to blow the bait in the discharge bin 4 out from the discharge port 8, thereby realizing the quantitative feeding operation of the aquaculture feeder.

[0040] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0041] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A quantitative feeding mechanism for an aquaculture feeding machine, comprising a crushing mechanism (1), the crushing mechanism (1) comprising a crushing box (101), the inner wall of the crushing box (101) being fixedly connected with a first connecting pipe (102), one end of the first connecting pipe (102) away from the crushing box (101) being fixedly connected with a feed bin (103), the inner wall of the crushing box (101) being provided with a first sliding groove (106), the top of the crushing box (101) being fixedly connected with a heating block (104), one end of the crushing box (101) away from the feed bin (103) being fixedly connected with a second connecting pipe (105), the outer wall of the crushing box (101) being fixedly connected with a first motor (109), the output end of the first motor (109) passing through one end of the crushing box (101) being fixedly connected with a driving wheel (110), characterized in that: Also included are: The filtering mechanism (2) comprises a rotating frame (201) arranged inside a crushing box (101), the outer wall of the rotating frame (201) being rotatably connected to a roller (202) via a rotating shaft, the roller (202) rollingly connected inside a first sliding groove (106), a second sliding groove (207) being provided on an outer surface of a side of the rotating frame (201) close to a driving wheel (110), the outer wall of the crushing box (101) being rotatably connected to a driving wheel (110) via a rotating shaft An auxiliary wheel (118) is provided, and the auxiliary wheel (118) is rotatably connected inside the second sliding groove (207). A toothed ring (203) is fixedly connected to the rotating frame (201) on the side close to the driving wheel (110), and the toothed ring (203) is meshedly connected with the driving wheel (110). A filtering hole (204) is provided on the outer surface of the rotating frame (201), and a quantitative mechanism (3) is provided at the bottom of the rotating frame (201). The filtering hole (204) is used to filter larger bait.

2. A quantitative feeding mechanism for aquaculture feeding machine according to claim 1, characterized in that: A fixing plate (205) is fixedly connected to the inner wall of the rotating frame (201), and a second through hole (206) is provided on the outer surface of the fixing plate (205). The second through hole (206) has the same diameter as the filter hole (204), and the second through hole (206) is used to discharge smaller bait on the fixing plate (205).

3. The quantitative feeding mechanism for aquaculture feeding machine according to claim 1, characterized in that: A first squeezing roller (111) is fixedly connected to an outer wall of a side of the driving wheel (110) away from the crushing box (101); a driven wheel (112) is fixedly connected to an outer wall of a side of the crushing box (101) close to the driving wheel (110) via a rotating shaft; the driven wheel (112) is meshingly connected to the driving wheel (110); a second squeezing roller (113) is fixedly connected to an outer wall of a side of the driven wheel (112) away from the crushing box (101); the first squeezing roller (111) and the second squeezing roller (113) are relatively rotated to squeeze and crush larger baits.

4. The quantitative feeding mechanism for aquaculture feeding machine according to claim 1, characterized in that: The outer wall of the crushing box (101) is fixedly connected to an air inlet pipe (107), and the outer wall of the crushing box (101) on a side away from the air inlet pipe (107) is fixedly connected to an air outlet pipe (108). The outer surface of the crushing box (101) on a side close to the air inlet pipe (107) and the air outlet pipe (108) is provided with a first through hole (117), and the diameter of the first through hole (117) is smaller than the filter hole (204), so as to prevent bait from flying out of the crushing box (101) under the action of airflow.

5. The quantitative feeding mechanism for aquaculture feeding machine according to claim 1, characterized in that: The inner wall of the crushing box (101) is fixedly connected to a fixing frame (114), the inner wall of the fixing frame (114) is rotatably connected to a cleaning roller (115) via a rotating shaft, and the outer wall of the fixing frame (114) close to the cleaning roller (115) is fixedly connected to cleaning teeth (116), the cleaning roller (115) scrapes off bait attached to the outer surface of the rotating frame (201) by rotating, and the cleaning teeth (116) prevent the accumulation of bait by scraping the surface of the cleaning roller (115).

6. The quantitative feeding mechanism for aquaculture feeding machine according to claim 1, characterized in that: The quantitative mechanism (3) comprises a connecting frame (301) fixedly connected to the second connecting tube (105); a second motor (302) is fixedly connected to the outer wall of the connecting frame (301); an output end of the second motor (302) passes through the connecting frame (301) and is fixedly connected to a rotating block (303); the second motor (302) drives the rotating block (303) to rotate to adjust the feeding speed of the bait.

7. A quantitative feeding mechanism for aquaculture feeding machine according to claim 6, characterized in that: The inner wall of the rotating block (303) is fixedly connected with a pressure measuring instrument (304), the measuring end of the pressure measuring instrument (304) is fixedly connected with a supporting plate (305), the bottom outer wall of the supporting plate (305) is fixedly connected with a spring (306), and one end of the spring (306) away from the supporting plate (305) is fixedly connected to the rotating block (303). The pressure measuring instrument (304) measures the weight of the bait by detecting the sliding distance of the supporting plate (305), and the spring (306) resets the supporting plate (305) to its initial position after measuring and discharging the bait through elastic action.

8. The quantitative feeding mechanism for aquaculture feeding machine according to claim 7, characterized in that: The end of the connecting frame (301) away from the crushing box (101) is fixedly connected to a discharge bin (4), the inner wall of the end of the discharge bin (4) close to the connecting frame (301) is fixedly connected to an inclined plate (5), the outer wall of the discharge bin (4) is fixedly connected to a fan (6), the output end of the fan (6) is fixedly connected to an air outlet (7), and the end of the discharge bin (4) away from the fan (6) is provided with a discharge outlet (8), the fan (6) generates an air flow through the air outlet (7), and the bait inside the discharge bin (4) is blown out from the discharge outlet (8).

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