Meat donkey breeding process
By installing partitions and sealing devices in the donkey breeding sheds, combined with image inspection and automated control, the synchronous cleaning and replacement of sand and gravel was achieved, solving the problem of incomplete sand and gravel cleaning in donkey breeding, improving breeding efficiency and the health of donkeys, and enhancing meat quality.
Patent Information
- Application Number
- CN202511975468.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-25
- Publication Date
- 2026-02-03
AI Technical Summary
Existing donkey farming techniques require frequent transport of donkeys to clear sand and gravel, which is cumbersome and inefficient, resulting in low efficiency in donkey farming. Incomplete sand and gravel removal also affects the growth environment and quality of the donkeys.
The system uses a combination of separating and sealing devices to clean the sand and gravel in the carrying area. Image inspection and automated control enable synchronous replacement of sand and gravel, avoiding the need for donkey transport. The system also incorporates spraying and vibration devices to accelerate the discharge of sand and gravel, ensuring that the sand and gravel are dry and clean.
It improved the efficiency and yield of donkey breeding, ensured the healthy growth of donkeys, improved meat quality, reduced manual operation steps, and achieved efficient sand and gravel removal without affecting the activities of donkeys.
Smart Images
Figure CN121444882A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of vertebrate breeding technology, in particular to a meat donkey breeding process. BACKGROUND
[0002] The newly bred meat donkey has large volume, high yield and good economic benefit, and the increase in the volume of the meat donkey leads to the need for frequent rolling on the ground to meet the physiological needs of body cleaning and temperature regulation.
[0003] The existing meat donkey breeding process is carried out in a traditional breeding shed, and dry sand and stones are spread on the ground of the breeding shed for the meat donkey to roll on. The internal pollution of the sand and stones increases and the humidity increases in the process of long-term use, and the staff need to manually clean and replace them regularly. The traditional operation process needs to transport the meat donkey to other breeding sheds for manual cleaning, replacement and addition of sand and stones, which is not only cumbersome and inefficient, but also low in meat donkey breeding efficiency. At the same time, the cleaning of the sand and stones is not thorough enough, which affects the growth environment of the meat donkey and the quality of the meat donkey. SUMMARY
[0004] In view of the above problems, the present application provides a meat donkey breeding process. The new meat donkey breeding process does not need to transport the meat donkey in different breeding sheds, and the cleaning and replacement of the sand and stones are more thorough, so that the meat donkey breeding efficiency is higher, the yield is larger, and the meat quality is better.
[0005] To solve the above problems, the technical scheme adopted by the present application is as follows:
[0006] A meat donkey breeding process uses a meat donkey breeding structure, which comprises a breeding shed and a feeding trough, and further comprises a bearing structure at the bottom of the breeding shed. The bearing structure is divided into symmetrical first and second bearing areas, and at least two bearing devices are included. The bearing device comprises a bearing base, and the surface of the bearing base is provided with an upper and lower through bearing opening. The bottom of the bearing opening is provided with a sealing device. One feeding trough is arranged on the outside of each of the first and second bearing areas. A partition device is arranged between the first and second bearing areas. The process comprises the following steps: S1, guiding the meat donkey into the first bearing area for feeding and separating by the partition device. After the second bearing area is emptied of the meat donkey, the corresponding sealing device is opened. After the sand and stones in the second bearing area are emptied from the bottom, the corresponding sealing device is closed. Then, the prepared sand and stones are laid in the second bearing area; S2, guiding the meat donkey into the second bearing area for feeding and separating by the partition device. After the first bearing area is emptied of the meat donkey, the corresponding sealing device is opened. After the sand and stones in the first bearing area are emptied from the bottom, the corresponding sealing device is closed. Then, the prepared sand and stones are laid in the first bearing area.
[0007] Preferably, the sealing device is a horizontally arranged cylinder, the sealing device side wall is provided with a through material discharging opening, the sealing device is fixedly connected with a driving shaft, and the sealing device is controlled to be in a sealing state or a discharging state by controlling the material discharging opening to deflect to different positions through the driving shaft.
[0008] Preferably, the driving shaft is a hollow shaft, the first side of the driving shaft is communicated with a pump liquid device, the second side of the driving shaft is provided with a liquid discharging device, and a sealing valve is arranged in the liquid discharging device; the driving shaft is emptied through the liquid discharging device, and then liquid is rapidly pumped into the driving shaft through the pump liquid device to generate vibration.
[0009] Preferably, the bottom of the bearing base is provided with a spraying device, the spraying device is communicated with the liquid discharging device, and the spraying device sprays water mist after the sealing device is opened.
[0010] Preferably, the spraying device comprises a first side plate and a second side plate, a dust falling area is formed between the first side plate and the second side plate, a strip-shaped dust falling spraying port is arranged at the top of the dust falling area, and the dust falling spraying port is communicated with the liquid discharging device.
[0011] Preferably, the vertical section of the material discharging opening is V-shaped, a first sealing strip is arranged at the first side above the sealing device, a second sealing strip is arranged at the second side above the sealing device, and the driving shaft penetrates through the material discharging opening and is located at the middle position.
[0012] Preferably, the top of the breeding shed is provided with an image inspection device, the surface of the feeding trough is provided with an indicating device, and the image inspection device is electrically connected with the sealing device and the indicating device.
[0013] Preferably, when the image inspection device finds that the sand and stone in the first bearing area or the second bearing area reaches the upper limit threshold value during the inspection process, the meat donkey is guided to the side of the second bearing area or the first bearing area by feeding the feeding trough near the side of the second bearing area or the first bearing area with feed, and the meat donkey is separated by the separating device, and the sealing device in the other side bearing area is opened to realize automatic discharging of the sand and stone after the meat donkey is separated.
[0014] Preferably, the bearing area is continuously imaged during the sand and stone discharging process, and when the sand and stone descending rate is detected to decrease, the liquid in the driving shaft is first emptied, then the sealing valve is closed, and finally the liquid is rapidly pumped into the driving shaft through the pump liquid device to generate vibration.
[0015] Preferably, the bottom of the first bearing area and the bottom of the second bearing area are respectively provided with a transfer device, the transfer device is electrically connected with the sealing device on the same side, and the transfer device is controlled to directionally transport and discharge the sand and stone from the bottom of the bearing structure after the sealing device is opened.
[0016] The beneficial effects of the present application are:
[0017] Compared with the prior art, through the above structure and process design, the sand and stone in the load-bearing area on one side can be alternately discharged and replaced, keeping the sand and stone in the load-bearing area in a dry and clean state, meeting the needs of new breed mule breeding, and ensuring the health and high yield of new breed mules; through the setting of the load-bearing device, the separation device and other structures, the replacement of sand and stone in the load-bearing area can be carried out simultaneously during the feeding of mules, without causing great influence on normal breeding of mules, which not only improves the efficiency of mule breeding, but also improves the quality of bred mules; and the new mule breeding process does not need to transport mules in different breeding sheds, and the cleaning and replacement of sand and stone are more thorough, so that the breeding efficiency of mules is higher, the yield is larger, and the meat quality is better. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 The process flow diagram of the present application.
[0019] Figure 2 The three-dimensional structure schematic diagram of the present application.
[0020] Figure 3 The side view structure schematic diagram of the present application. Figure 2
[0021] Figure 4 The A-A sectional view structure schematic diagram of the present application. Figure 3
[0022] Figure 5 The three-dimensional structure schematic diagram of the load-bearing device of the present application.
[0023] Figure 6 The top view structure schematic diagram of the present application. Figure 5
[0024] Figure 7 The B-B sectional view structure schematic diagram of the present application. Figure 6
[0025] The sealing device closed state schematic diagram of the present application. Figure 8
[0026] The sequential cleaning process schematic diagram of the present application. Figure 9
[0027] In the figure: 100, a breeding shed; 200, a bearing structure; 2001, a first bearing area; 2002, a second bearing area; 300, a transfer device; 400, a feeding trough; 500, a bearing device; 510, a bearing base; 511, a first sealing strip; 512, a second sealing strip; 520, a bearing opening; 530, a sealing device; 531, a discharging opening; 540, a driving shaft; 550, a spraying device; 551, a first side plate; 552, a dust-reducing spraying port; 553, a second side plate; 600, a partition device. DETAILED DESCRIPTION
[0028] The application will be further described below in conjunction with the drawings and examples.
[0029] In order to solve the problems mentioned in the background art, with reference to the accompanying drawings Figure 1 - the accompanying drawings Figure 9 A meat donkey breeding process using a meat donkey breeding structure, the meat donkey breeding structure comprising a breeding shed 100 and a feeding trough 400, further comprising a bearing structure 200 located at the bottom of the breeding shed 100, a fence is arranged around the breeding shed 100 to limit the movement of the meat donkey, the meat donkey is kept in the bearing structure 200, and feed is regularly put into the feeding trough 400 to meet the feeding needs of the meat donkey, and sand is arranged on the surface of the bearing structure 200 for the meat donkey to roll in to remove sweat stains and contaminated substances on the surface of the body, thereby meeting the needs of the meat donkey.
[0030] The bearing structure 200 is divided into symmetrical first bearing area 2001 and second bearing area 2002, and the bearing structure 200 comprises at least two bearing devices 500, and at least one bearing device 500 is arranged in each of the first bearing area 2001 and the second bearing area 2002, and the number of bearing devices 500 is determined according to the scale of breeding, for a breeding shed 100 with a large scale of breeding, a plurality of bearing devices 500 can be arranged side by side to form a larger bearing structure 200 for more meat donkeys to move.
[0031] Specifically, the bearing device 500 comprises a bearing base 510, the bearing base 510 is provided with a bearing opening 520 penetrating through the upper and lower surfaces, the bearing opening 520 is provided with a sealing device 530 at the bottom, the sealing device 530 has a sealing state and a discharging state, the sealing device 530 is controlled to be in the sealing state to control the bottom of the bearing opening 520 to be in a sealed state, thereby effectively bearing the sand and preventing the sand from leaking, and ensuring the normal movement and rolling of the meat donkey; the sealing device 530 is controlled to be in the discharging state to control the bottom of the bearing opening 520 to be in an open state, thereby discharging the sand in the bearing opening 520, replacing the seriously contaminated sand, avoiding the influence of the contaminated sand on the subsequent rolling of the meat donkey, ensuring the healthy growth of the meat donkey, and improving the yield of the meat donkey.
[0032] The sandstone pollution includes, but is not limited to, liquid pollution, fecal pollution, large-size stone pollution, etc.
[0033] A feeding trough 400 is arranged outside the first bearing area 2001 and the second bearing area 2002, and a separation device 600 is arranged between the first bearing area 2001 and the second bearing area 2002. By arranging two feeding troughs 400, the position of the meat donkey can be guided, and the meat donkey is controlled to concentrate in the bearing area on one side. The first bearing area 2001 and the second bearing area 2002 can be separated by the separation device 600, so that the concentrated meat donkey is prevented from moving to the outside.
[0034] The separation device 600 can be manually arranged as a mechanical fence, or can be automatically lifted by an automatic lifting device to physically separate the meat donkey.
[0035] The application specifically includes the following steps: S1, guiding the meat donkey into the first bearing area 2001 for feeding, and separating by the separation device 600. After the second bearing area 2002 is emptied of the meat donkey, the corresponding sealing device 530 is opened, the sandstone in the second bearing area 2002 is emptied from the bottom, and then the corresponding sealing device 530 is closed. The prepared sandstone is then laid in the second bearing area 2002, and the cleaning and replacement of the sandstone on the first side are completed.
[0036] S2, guiding the meat donkey into the second bearing area 2002 for feeding, and separating by the separation device 600. After the first bearing area 2001 is emptied of the meat donkey, the corresponding sealing device 530 is opened, the sandstone in the first bearing area 2001 is emptied from the bottom, and then the corresponding sealing device 530 is closed. The prepared sandstone is then laid in the first bearing area 2001, and the cleaning and replacement of the sandstone on the second side are completed.
[0037] The newly added sandstone needs to be prepared in advance, sterilized and dried to meet the requirements of meat donkey breeding. The adding method can be manual adding or automatic conveying of the sandstone to the predetermined position in the bearing opening 520 to fill the bearing opening 520 and ensure that the top of the bearing opening 520 is relatively flat to ensure the normal activity and rolling of the meat donkey.
[0038] When the sandstone in the two bearing areas meets the requirements of meat donkey breeding, the separation of the separation device 600 can be cancelled to allow the meat donkey to have a larger activity range during breeding, so as to avoid the small activity area affecting the growth of the meat donkey.
[0039] In summary, through the above structure and process design, the sand and gravel in the one-side bearing area can be alternately discharged and replaced, keeping the sand and gravel in the bearing area in a dry and clean state, meeting the needs of new variety of meat donkey breeding, ensuring the health and high yield of new variety of meat donkey; through the arrangement of the bearing device 500, the separation device 600 and other structures, the replacement of sand and gravel in the bearing area can be carried out synchronously during the feeding of the meat donkey, without causing excessive impact on the normal breeding of the meat donkey, improving the efficiency of meat donkey breeding and enhancing the quality of the bred meat donkey.
[0040] Specifically, the sealing device 530 is a horizontally arranged cylinder, the sealing device 530 side wall is provided with a through-going discharge opening 531, the sealing device 530 is fixedly connected with a driving shaft 540, the discharge opening 531 is controlled to deflect to different positions by the driving shaft 540, and the sealing device 530 is controlled to be in a sealed state or a discharging state.
[0041] The sealing device 530 is controlled to deflect to the state shown in FIG. 6 by the driving shaft 540, at this time, the bottom of the bearing opening 520 is controlled to be in an open state by the discharge opening 531, and the sand and gravel can be automatically discharged under the action of gravity. Figure 7 The sealing device 530 is controlled to deflect to the state shown in FIG. 6 by the driving shaft 540, at this time, the bottom of the bearing opening 520 is controlled to be in an open state by the discharge opening 531, and the sand and gravel can be automatically discharged under the action of gravity. Figure 8 The sealing device 530 is controlled to deflect to the state shown in FIG. 6 by the driving shaft 540, at this time, the bottom of the bearing opening 520 is controlled to be in an open state by the discharge opening 531, and the sand and gravel can be automatically discharged under the action of gravity.
[0042] Further, the driving shaft 540 is a hollow shaft, the first side of the driving shaft 540 is communicated with a pump liquid device, the second side is provided with a liquid discharge device, and a sealing valve is arranged in the liquid discharge device. The sealing valve can be an electromagnetic ball valve, the liquid discharge device is an electric liquid discharge device, and the liquid remaining in the driving shaft 540 can be discharged to ensure that the driving shaft 540 is in a hollow state. After the driving shaft 540 is emptied by the liquid discharge device, liquid is quickly pumped into the driving shaft 540 by the pump liquid device to generate vibration.
[0043] Through the above structural design, the water hammer effect can be cleverly utilized. After the driving shaft 540 is emptied, the liquid is controlled to quickly enter the driving shaft 540, which can generate water hammer impact vibration, vibrate the sand and gravel blocked around the driving shaft 540, and accelerate the rapid discharge of the sand and gravel, especially for the sand and gravel that is hardened and bridged.
[0044] Further, the bottom of the bearing base 510 is provided with a spraying device 550, which is communicated with the liquid discharge device. The spraying device 550 sprays water mist under the control of the sealing device 530, and the liquid can be discharged from the spraying device 550 through the liquid discharge device. The water mist is sprayed synchronously during the discharging process, which can reduce dust of the falling sand and gravel, avoid excessive dust overflow to affect the breeding environment of the meat donkey, and realize efficient use of water hammer liquid and avoid waste of resources.
[0045] The water mist is sprayed towards the direction of the falling sand and gravel, which can partially humidify the discharged sand and gravel. The discharged sand and gravel needs to be subjected to subsequent processing procedures such as screening, drying and disinfection. The sand and gravel meeting the requirements after processing are re-discharged into the bearing opening 520.
[0046] The bearing opening 520 described above can be optionally attached Figure 7 The hollow structure shown is suitable for the structure of the bearing opening 520 with a relatively shallow depth. For the structure of the bearing opening 520 with a relatively large depth, support plates arranged at intervals can be arranged at the top of the bearing opening 520 to ensure the stability of the meat donkey moving and rolling.
[0047] Specifically, the spraying device 550 includes a first side plate 551 and a second side plate 553, and a dust reduction area is formed between the first side plate 551 and the second side plate 553. A strip-shaped dust reduction spraying port 552 is arranged at the top of the dust reduction area, and the dust reduction spraying port 552 is communicated with the liquid discharge device. The material is guided by the first side plate 551 and the second side plate 553, and the dust reduction area is formed outside the sand and gravel discharging, so as to avoid dust overflow. The dust reduction spraying port 552 located at the top can spray water mist downward, thereby realizing efficient dust reduction.
[0048] Further, the vertical section of the discharging opening 531 is V-shaped. A first sealing strip 511 is arranged on the first side of the sealing device 530, and a second sealing strip 512 is arranged on the second side of the sealing device 530. The first sealing strip 511 and the second sealing strip 512 can form a shielding structure at the top of the sealing device 530. A flexible sealing lip can be arranged on the side of the sealing strip close to the sealing device 530, which is attached to the surface of the sealing device 530 to avoid dust entering the rotating gap of the sealing device 530 and ensure normal and stable rotation of the sealing device 530.
[0049] The driving shaft 540 penetrates the discharging opening 531 and is located at the middle position. The driving shaft 540 located at the middle position can better generate vibration and impact the sand and gravel blocked in the discharging opening 531, thereby further accelerating the discharge of the sand and gravel. The driving shaft 540 described above is arranged along a straight line and is made of steel material, which is more convenient to install, has small water hammer impact loss in later period, is convenient to replace and maintain, and is suitable for long-term use.
[0050] The image inspection device is arranged on the top of the breeding shed 100, and the indicating device is arranged on the surface of the feeding trough 400. The image inspection device is electrically connected with the sealing device 530 and the indicating device. The indicating device can emit sound and light signals to prompt the staff to put the meat donkey feed into the feeding trough 400 on the predetermined side. The staff does not need to make independent judgments, and the accuracy and efficiency of the feed putting are improved.
[0051] After the meat donkeys are concentrated on one side through the image inspection device, the sealing device 530 on the other side is controlled to be opened, and the discharge of the sand and stones is automatically realized. The whole operation process is automatically performed, and the judgment can be automatically made through the image inspection device. The efficiency of the meat donkey breeding is greatly improved, and the method is especially suitable for a larger meat donkey breeding workshop.
[0052] Specifically, when the image inspection device detects that the sand and stones in the first bearing area 2001 or the second bearing area 2002 reach the upper limit threshold, it indicates that the sand and stones on the side cannot meet the needs of the meat donkey breeding, and need to be replaced. At this time, the feed is put into the feeding trough 400 near the second bearing area 2002 or the first bearing area 2001, the meat donkeys are guided to the second bearing area 2002 or the first bearing area 2001, and are separated by the separating device 600. After the meat donkeys are separated, the sealing device 530 in the other bearing area is opened, and the automatic discharge of the sand and stones is realized. For details, refer to the accompanying drawings. Figure 9 The sand and stones in the two bearing areas are discharged and replaced in different areas, which meets the requirement of rapid replacement of the sand and stones without affecting the normal breeding of the meat donkeys.
[0053] During the discharge of the sand and stones, the bearing area is continuously detected by the image inspection device. When the detection shows that the sand and stone discharge rate is reduced, the liquid in the driving shaft 540 is first emptied, then the sealing valve is closed, and finally the pump liquid device is used to quickly pump the liquid into the driving shaft 540 to generate vibration, so as to accelerate the discharge of the sand and stones. In the case of serious blockage, an alarm signal can also be sent to the staff to remind them to clean up quickly.
[0054] The transfer device 300 is arranged at the bottom of the first bearing area 2001 and the second bearing area 2002. The transfer device 300 is electrically connected with the sealing device 530 on the same side. After the sealing device 530 is opened, the transfer device 300 is controlled to be oriented and conveyed, so as to discharge the sand and stones from the bottom of the bearing structure 200. The above-mentioned transfer device 300 can be selected as a belt driving element. The bearing structure 200 is designed to be lifted as a whole, so as to enable the sand and stones to be normally discharged. The transfer device 300 is used to quickly transfer the sand and stones to the outside, so as to facilitate the subsequent rapid screening, drying and disinfection of the sand and stones.
[0055] The above merely describes preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A donkey breeding process, using a donkey breeding structure, said donkey breeding structure comprising a breeding shed (100) and a feeding trough (400), characterized in that, It also includes a support structure (200), which is divided into a symmetrical first support area (2001) and a second support area (2002). The support structure (200) includes at least two support devices (500). Each support device (500) includes a support base (510). The surface of the support base (510) is provided with a vertically penetrating support opening (520). A sealing device (530) is provided at the bottom of the support opening (520). A feeding trough (400) is provided on the outer side of both the first support area (2001) and the second support area (2002). A separating device (600) is provided between the first support area (2001) and the second support area (2002). The process includes the following steps: S1. Guide the donkeys to the first carrying area (2001) for feeding and separate them with the separating device (600). After emptying the donkeys in the second carrying area (2002), open the corresponding sealing device (530), drain the sand and gravel in the second carrying area (2002) from the bottom and close the corresponding sealing device (530). Then, lay the pre-prepared sand and gravel in the second carrying area (2002). S2. Guide the donkeys to the second carrying area (2002) for feeding and separate them with the separating device (600). After emptying the donkeys in the first carrying area (2001), open the corresponding sealing device (530), drain the sand and gravel in the first carrying area (2001) from the bottom and close the corresponding sealing device (530). Then, lay the pre-prepared sand and gravel in the first carrying area (2001).
2. The donkey breeding process according to claim 1, characterized in that, The sealing device (530) is a horizontally arranged cylinder. The sealing device (530) has a through discharge opening (531) on its side wall. The sealing device (530) is fixedly connected to a drive shaft (540). The drive shaft (540) controls the discharge opening (531) to deflect to different positions to control the sealing device (530) to be in a sealing state or a discharge state.
3. The donkey breeding process according to claim 2, characterized in that, The drive shaft (540) is a hollow shaft. A pumping device is connected to the first side of the drive shaft (540), and a draining device is installed on the second side. A sealing valve is installed in the draining device. After the drive shaft (540) is emptied by the draining device, liquid is quickly pumped into the drive shaft (540) by the pumping device to generate vibration.
4. The donkey breeding process according to claim 3, characterized in that, The bottom of the support base (510) is provided with a spray device (550), which is connected to the drainage device. After the sealing device (530) is opened, the spray device (550) is controlled to spray water mist.
5. The donkey breeding process according to claim 4, characterized in that, The spraying device (550) includes a first side plate (551) and a second side plate (553). A dust-suppressing area is formed between the first side plate (551) and the second side plate (553). A strip-shaped dust-suppressing spray nozzle (552) is provided at the top of the dust-suppressing area. The dust-suppressing spray nozzle (552) is connected to the draining device.
6. The donkey breeding process according to claim 3, characterized in that, The vertical cross-section of the discharge opening (531) is V-shaped. A first sealing strip (511) is provided on the first side above the sealing device (530), and a second sealing strip (512) is provided on the second side above. The drive shaft (540) passes through the discharge opening (531) and is located in the middle position.
7. The donkey breeding process according to claim 3, characterized in that, The top of the breeding shed (100) is equipped with an image inspection device, and the surface of the feeding trough (400) is equipped with an indicator device. The image inspection device is electrically connected to the sealing device (530) and the indicator device.
8. The donkey breeding process according to claim 7, characterized in that, During the inspection process, if the image inspection device finds that the sand and gravel in the first bearing area (2001) or the second bearing area (2002) has reached the upper limit threshold for replacement, feed is put into the feeding trough (400) on the side closer to the second bearing area (2002) or the first bearing area (2001) to guide the donkey to the side of the second bearing area (2002) or the first bearing area (2001), and the donkey is separated by the separating device (600). After the donkey is separated, the sealing device (530) in the bearing area on the other side is opened to realize the automatic feeding of sand and gravel.
9. A meat donkey breeding process according to claim 8, characterized in that, During the sand and gravel feeding process, the image detection of the bearing area is continuously performed. When the sand and gravel descent rate is detected to decrease, the liquid in the drive shaft (540) is first drained, then the sealing valve is closed, and finally the liquid is quickly pumped into the drive shaft (540) through the pumping device to generate vibration.
10. A meat donkey breeding process according to any one of claims 1-9, characterized in that, The bottom of the first bearing area (2001) and the second bearing area (2002) are respectively provided with a transfer device (300). The transfer device (300) is electrically connected to the sealing device (530) on the same side. After the sealing device (530) is opened, the transfer device (300) is controlled to directionally transport sand and gravel from the bottom of the bearing structure (200).