Automatic feeding machine for aquaculture

Abstract

The invention relates to the technical field of aquaculture, in particular to an automatic feeding machine for aquaculture. The technical problem to be solved is to provide an automatic feeding machine for aquaculture, which can prevent feed from being broken and uneven in feeding. According to the technical scheme, the ship comprises a ship body. The bearing frame is installed on the ship body, the material containing barrel is installed in the bearing frame, the conical pipe is fixedly connected to the bottom of the material containing barrel, the draught fan is installed on the bearing frame, an air outlet pipe of the draught fan is communicated with the conical pipe, the throwing mechanism is arranged at one end of the conical pipe, the rectangular frame is installed on the conical pipe, and the control panel is arranged in the rectangular frame in a sliding mode. According to the device, centrifugal force is generated while the arc-shaped throwing plate rotates, the arc-shaped throwing plate rotates along the material blocking plate, when the arc-shaped throwing plate rotates to the notch of the material blocking plate, shrimp feed is evenly thrown into a pond through the centrifugal force generated by rotation of the arc-shaped throwing plate, and meanwhile the integrity of the shrimp feed can be guaranteed through the centrifugal force; and the shrimp feed is prevented from being broken in the throwing process.

Description

Technical Field

[0001] The present invention relates to the technical field of aquaculture, in particular to an automatic feeding machine for aquaculture. Background Art

[0002] Aquaculture refers to the cultivation, breeding and management of aquatic organisms such as fish, shrimp, shellfish and algae in artificially controlled waters such as ponds, cages and factory workshops to obtain aquatic products. It is an important part of the global fishery industry and a key industry to ensure the supply of high-quality protein.

[0003] Existing aquaculture feeding machines throw feed into the pond by throwing it. However, the feed is easily broken during the throwing process. The broken feed particles are too small and easily dispersed by the water flow or sink to the bottom of the pond, making it difficult for shrimp to effectively eat. Secondly, the feed is easily accumulated at the edge of the pond due to the influence of the water flow rate during the throwing process, resulting in uneven feed input. Summary of the Invention

[0004] In order to overcome the shortcomings of feed crushing, feed accumulation and uneven feed input, the technical problem to be solved is to provide an automatic feeding machine for aquaculture that can prevent feed crushing and uneven feed input.

[0005] The technical solution is: an automatic feeding machine for aquaculture, comprising a hull; A carrier frame, the carrier frame is installed on the hull, and a material bucket is installed in the carrier frame; A conical tube, the conical tube is fixedly arranged at the bottom of the material holding barrel, a fan is installed on the supporting frame, and the air outlet pipe of the fan is connected to the conical tube; a spreading mechanism, the spreading mechanism being arranged at one end of the tapered tube; A rectangular frame, the rectangular frame being mounted on the conical tube, a control plate being slidably disposed within the rectangular frame, the control plate being slidably connected to the conical tube; An adjusting mechanism is arranged on the control panel.

[0006] Furthermore, a spiral groove is provided in the conical tube, and the spiral groove is used to form a rotating vortex in the conical tube.

[0007] Furthermore, the spreading mechanism includes a bearing, a bearing is rotatably provided on one side of the conical tube, a speaker plate 1 is fixedly provided on the bearing, a speaker plate 2 is provided on one side of the speaker plate 1, a conical column is fixedly provided on the speaker plate 2, there is a gap between the conical column and the conical tube, an arc-shaped spreading plate is arrayed on the conical column, the arc-shaped spreading plate is fitted with and fixed to the speaker plate 1 and the speaker plate 2, an L-shaped frame 1 is fixedly provided on one side of the conical tube, a material baffle is rotatably provided between the speaker plate 1 and the speaker plate 2, and the material baffle is fixedly connected to the L-shaped frame 1.

[0008] Furthermore, an arc-shaped air guide groove is provided on the conical column, and a blade block is fixedly provided in the arc-shaped air guide groove.

[0009] Furthermore, it also includes a special-shaped frame, the special-shaped frame is fixedly provided on the supporting frame, the control panel and the special-shaped frame are slidably provided, the special-shaped frame is installed with an electric telescopic rod, the telescopic end of the electric telescopic rod is fixedly provided with a card joint, an elastic clip is installed on one side of the control panel, and the card joint cooperates with the elastic clip.

[0010] Furthermore, the adjustment mechanism includes a wire wheel, a wire wheel is rotatably provided on the special-shaped frame, a pull rope is provided around the wire wheel, an L-shaped frame 2 is fixedly provided at the bottom of the supporting frame, a pulley 1 is rotatably provided on the L-shaped frame 2, the pull rope passes around the pulley 1, a support frame is fixedly provided on the supporting frame, an elastic stretch cloth is installed on the support frame, and the pull rope is connected to the elastic stretch cloth.

[0011] Furthermore, the adjustment mechanism also includes a one-way gear. A one-way gear is provided on one side of the wire wheel. A rack is fixedly provided on the control panel, and the rack is engaged with the one-way gear.

[0012] Furthermore, a fixed disk is included. The fixed disk is fixedly arranged on the special-shaped frame. The fixed disk and the rotating shaft of the wire wheel are rotatably arranged. A torsion spring is connected between the fixed disk and the wire wheel.

[0013] Furthermore, it also includes a second pulley, which is symmetrically rotatably arranged on the support frame, and the pull rope is located between the two symmetrical pulleys.

[0014] Furthermore, it also includes an elastic column, the elastic column is slidably provided on the bottom of the rectangular frame, a limiting groove is opened at the bottom of the control board, and the elastic column cooperates with the limiting groove.

[0015] Beneficial effects of the present invention: 1. The present invention generates centrifugal force while the arc-shaped spreading plate rotates, and the arc-shaped spreading plate rotates along the baffle plate. When the arc-shaped spreading plate rotates to the notch of the baffle plate, the centrifugal force of the arc-shaped spreading plate is used to evenly spread the shrimp feed in the pond. The rotating vortex drives the conical column to rotate at high speed, thereby achieving the effect of evenly spreading the shrimp feed in the pond while the arc-shaped spreading plate rotates and generates centrifugal force. At the same time, the centrifugal force can ensure the integrity of the shrimp feed and prevent the shrimp feed from being broken during the spreading.

[0016] 2. This application uses a rack to drive the control plate to move and reduce the feed opening. When the control plate moves to reduce the feed opening, the amount of shrimp feed discharged into the feed bucket is limited. When the shrimp feed discharge amount decreases, it is continuously distributed in the pond through the arc-shaped distribution plate. As the airflow blows, the water surface in the pond fluctuates. When the distributed shrimp feed discharge amount is reduced, the problem of shrimp feed accumulation can be avoided. The elastic stretch cloth can adjust the movement distance of the control plate according to the wind flow, thereby adjusting the effect of the shrimp feed discharge amount. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 A schematic diagram of the overall structure of the present invention; Figure 3 A schematic cross-sectional structural diagram of the present invention; Figure 4 A schematic structural diagram of the spreading mechanism of the present invention; Figure 5 A schematic structural diagram of the arc-shaped air guide groove and blade blocks of the present invention; Figure 6 A schematic structural diagram of the regulating mechanism of the present invention; Figure 7 A schematic structural diagram of the regulating mechanism of the present invention; Figure 8 A schematic structural diagram of the elastic stretch fabric of the present invention; Figure 9 A schematic diagram of the enlarged structure of the present invention in Figure 7; Figure 10 A schematic structural diagram of the control panel of the present invention.

[0018] Figure numbers: 1 hull, 2 carrying frame, 21 supporting frame, 3 material bucket, 4 conical tube, 41 spiral groove, 42 fan, 5 bearing, 51 horn plate one, 52 horn plate two, 6 conical column, 61 arc-shaped air guide groove, 62 blade block, 63 arc-shaped throwing plate, 7L-type frame one, 71 baffle plate, 8 rectangular frame, 81 control panel, 811 elastic clip, 812 limit groove, 82 rack, 83 electric telescopic rod, 831 card joint, 84 elastic column, 9 special-shaped frame, 901L-type frame two, 902 pulley one, 91 reel, 92 pull rope, 93 one-way gear, 94 fixed plate, 95 torsion spring, 96 pulley two, 10 elastic stretch cloth. DETAILED DESCRIPTION

[0019] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0020] An automatic feeding machine for aquaculture, such as Figure 1-Figure 5 As shown, it includes a hull 1, a carrying frame 2, a material bucket 3, a tapered tube 4, a fan 42, a spreading mechanism, a rectangular frame 8, a control panel 81 and an adjustment mechanism. The carrying frame 2 is mounted on the hull 1, and a material bucket 3 is mounted inside the carrying frame 2. The material bucket 3 is provided with a barrel cover. The tapered tube 4 is fixedly arranged at the bottom of the material bucket 3. The fan 42 is mounted on the carrying frame 2, and the air outlet pipe of the fan 42 is connected to the tapered tube 4. The spreading mechanism is arranged at one end of the tapered tube 4. When the spreading mechanism rotates, it is used to evenly spread the shrimp feed. The rectangular frame 8 is mounted on the tapered tube 4. A control panel 81 is slidably arranged inside the rectangular frame 8. When the control panel 81 moves, it is used to adjust the amount of shrimp feed discharged. The control panel 81 is slidably connected to the tapered tube 4. The adjustment mechanism is arranged on the control panel 81. When the adjustment mechanism moves, it is used to adjust the movement of the control panel 81.

[0021] like Figure 3 As shown, a spiral groove 41 is provided in the conical tube 4. When the airflow blows toward the conical tube 4, the spiral groove 41 is used to change the rotation of the airflow and form a rotating vortex.

[0022] like Figure 1-Figure 5As shown, the spreading mechanism includes a bearing 5, a bearing 5 is rotatably provided on one side of the conical tube 4, a horn plate 51 is fixedly provided on the bearing 5, a horn plate 2 52 is provided on one side of the horn plate 1 51, a conical column 6 is fixedly connected to the horn plate 2 52, and there is a gap between the conical column 6 and the conical tube 4 for allowing shrimp feed to pass through, and three arc-shaped spreading plates 63 are arrayed on the conical column 6, and the three arc-shaped spreading plates 63 are fitted and fixedly provided with the horn plate 1 51 and the horn plate 2 52, an L-shaped frame 7 is fixedly provided on one side of the conical tube 4, a material baffle 71 is rotatably provided between the horn plate 1 51 and the horn plate 2 52, a notch is reserved on the material baffle 71 for allowing shrimp feed to be thrown out, and the material baffle 71 is fixedly connected to the L-shaped frame 7.

[0023] like Figure 4-Figure 5 As shown, three arc-shaped air guide grooves 61 are opened on the conical column 6, and three blade blocks 62 are fixedly arranged in the three arc-shaped air guide grooves 61 respectively. The blade blocks 62 are used to block the rotating vortex, and then drive the three blade blocks 62 to rotate through the rotating vortex.

[0024] like Figure 6-Figure 8 As shown, it also includes a special-shaped frame 9, the special-shaped frame 9 is fixedly provided on the supporting frame 2, the control board 81 is slidably connected to the special-shaped frame 9, an electric telescopic rod 83 is installed on the special-shaped frame 9, the telescopic end of the electric telescopic rod 83 is fixed with a card joint 831, and an elastic clip 811 is installed on one side of the control board 81, and the card joint 831 cooperates with the elastic clip 811.

[0025] like Figure 2 、 Figure 6-Figure 7 As shown, the adjustment mechanism includes a wire wheel 91, a wire wheel 91 is rotatably provided on the special-shaped frame 9, a pull rope 92 is provided around the wire wheel 91, an L-shaped frame 2 901 is fixedly provided at the bottom of the supporting frame 2, two pulleys 1 902 are rotatably provided on the L-shaped frame 2 901, the pull rope 92 passes around the two pulleys 1 902, a support frame 21 is fixedly provided on the supporting frame 2, an elastic stretch cloth 10 is installed on the support frame 21, and the pull rope 92 is connected to the elastic stretch cloth 10.

[0026] like Figure 1-Figure 2 、 Figure 6-Figure 7 As shown, the adjustment mechanism also includes a one-way gear 93. A one-way gear 93 is connected to one side of the spool 91. A rack 82 is fixedly provided on the control panel 81. The rack 82 is engaged with the one-way gear 93. The one-way gear 93 can only drive the rack 82 to move clockwise. When the one-way gear 93 rotates counterclockwise, it will not generate any driving force.

[0027] like Figure 6-Figure 7 As shown, a fixed disk 94 is also included. The fixed disk 94 is fixedly provided on one side of the special-shaped frame 9. The fixed disk 94 and the rotating shaft of the wire wheel 91 are rotatably provided. A torsion spring 95 is connected between the fixed disk 94 and the wire wheel 91.

[0028] As Figure 8 shown, further comprising pulley two 96, support frame 21 is provided with symmetrically rotating pulley two 96, pull rope 92 is located between symmetric pulley two 96, when pull rope 92 moves left and right and contacts left and right pulley two 96, avoid the friction generated by pull rope 92 moving left and right.

[0029] As Figure 10 shown, further comprising elastic column 84, rectangular frame 8 is provided with sliding elastic column 84 at the bottom, control panel 81 is provided with a plurality of limiting grooves 812 at the bottom, elastic column 84 cooperates with limiting groove 812, the elastic force of elastic column 84 is less than the elastic force of elastic clamp 811.

[0030] The specific implementation steps of the present application are as follows: first, when using the feeding machine, the staff needs to open the bucket cover on the material bucket 3, then pour the shrimp feed into the material bucket 3, at this time, the control panel 81 in the initial state is located on the conical tube 4 in a sealed state, the control panel 81 limits the downward flow of the shrimp feed in the material bucket 3, after the material bucket 3 is filled with shrimp feed, the staff closes the bucket cover on the material bucket 3, then moves the feeding machine to the pond, starts the paddle rotation on the ship body 1, and then drives the feeding machine to move in the pond, the staff first starts the fan 42, after the fan 42 is started, the airflow generated by the fan 42 enters the conical tube 4 through the air outlet pipe, so that the airflow is discharged from one end of the conical tube 4, then the electric telescopic rod 83 is retracted, the electric telescopic rod 83 drives the retraction end to retract and move, and then cooperates with the elastic clamp 811 through the clamping head 831 to drive the control panel 81 to move along the conical tube 4 and the rectangular frame 8, so that the control panel 81 no longer blocks the bottom of the material bucket 3, when the control panel 81 moves, the rack 82 moves synchronously, the rack 82 moves and engages with the one-way gear 93, at the same time, the one-way gear 93 rotates counterclockwise and does not generate driving force, therefore, the line wheel 91 is in a stationary state, at this time, the shrimp feed in the material bucket 3 flows into the conical tube 4, the greater the moving distance of the control panel 81, the greater the amount of shrimp feed flowing in, on the contrary, the smaller the moving distance of the control panel 81, the smaller the amount of shrimp feed flowing in, the size of the control panel 81 can be adjusted according to the periodic growth of the shrimp in the pond, when the shrimp feed flows into the conical tube 4, the airflow generated by the fan 42 blows towards the shrimp feed, and the shrimp feed moves along the inner wall of the conical tube 4, when the airflow and the shrimp feed pass through the spiral groove 41, the airflow and the shrimp feed form a rotating vortex through the guidance of the spiral groove 41, at the same time, the diameter of the conical tube 4 gradually decreases, the rotating vortex of the airflow and the shrimp feed increases in pressure, and flows out rapidly through the end of the conical tube 4 with decreasing diameter and enters between the horn disc one 51 and the horn disc two 52 along the surface of the conical column 6.

[0031] When the rotating vortex and the shrimp feed move through the surface of the conical column 6, the shrimp feed enters the horn plate 1 51 and the horn plate 2 52 along the surface of the conical column 6. Then, when the rotating vortex passes through the arc-shaped air guide groove 61 on the conical column 6, it is blocked by the blade block 62, and then the rotating vortex drives the blade block 62 to rotate. The blade block 62 drives the conical column 6 to rotate at high speed, and drives the horn plate 2 52 and the arc-shaped throwing plate 63 to rotate through the conical column 6, and then drives the horn plate 1 51 and the bearing 5 to rotate through the arc-shaped throwing plate 63. The arc-shaped throwing plate 63 rotates and generates centrifugal force at the same time. At the same time, the arc-shaped throwing plate 63 rotates along the baffle plate 71. When the arc-shaped throwing plate 63 rotates to the notch of the baffle plate 71, the shrimp feed is evenly thrown into the pond by the centrifugal force of the arc-shaped throwing plate 63. The rotating vortex drives the conical column 6 to rotate at a high speed, thereby achieving the arc-shaped throwing plate 63 rotating and generating centrifugal force to evenly throw the shrimp feed into the pond. At the same time, the centrifugal force can ensure the integrity of the shrimp feed and prevent the shrimp feed from being broken during throwing.

[0032] When the feeder feeds shrimp feed in the pond, due to weather and other issues, when it is windy, the water surface in the pond will fluctuate in the direction of the wind. When the shrimp feed is thrown, the fluctuation of the water surface will cause part of the shrimp feed thrown in the pond to drift to the shore of the pond, causing the shrimp feed to accumulate and be thrown unevenly.

[0033] When the feeding machine throws shrimp feed and encounters windy weather, when the airflow blows the elastic stretch cloth 10, the elastic stretch cloth 10 will bulge to one side due to the airflow. When the elastic stretch cloth 10 is bulged by the airflow, it drives the pull rope 92 to move and release the line. After the pull rope 92 moves and releases the line, it drives pulley 1 902 and pulley 2 96 to rotate. Pulley 1 902 and pulley 2 96 can reduce the resistance of the pull rope 92. When the pull rope 92 moves and releases the line, it drives the line wheel 91 to rotate clockwise. At this time, the torsion spring 95 stores force, and the line wheel 91 simultaneously drives the one-way gear 93 to rotate clockwise. When the one-way gear 93 rotates, it drives the rack 82 to move, and then drives the control board 81 to move through the rack 82 to narrow the feeding port. When the rack 82 drives the control board 81 to move, the control board 81 continuously squeezes the elastic column 84 through the limit groove 812. At this time, the card joint 831 and the elastic clip 81 1 is in the engaged state. When the control plate 81 moves, the elastic clip 811 moves. After the elastic clip 811 moves, it disengages from the clamping joint 831 and elastically returns to its original position. At the same time, when the control plate 81 moves to narrow the discharge opening, the amount of shrimp feed discharged from the feeding bucket 3 is limited. When the amount of shrimp feed discharged decreases, it continues to be distributed into the pond through the arc-shaped distribution plate 63. As the airflow blows, the water surface in the pond fluctuates. When the amount of shrimp feed distributed is reduced, the problem of shrimp feed accumulation can be avoided. The elastic stretch cloth 10 can adjust the movement distance of the control plate 81 according to the wind flow, thereby adjusting the effect of shrimp feed discharge. At the same time, because the elastic stretch cloth 10 is affected by the airflow, the pull rope 92 is always in a taut state, so the torsion spring 95 is always in a state of storing force. At the same time, the elastic column 84 is stuck in the limit groove 812, thereby ensuring the stability of the control plate 81.

[0034] When the shrimp feed is fed and scattered, it is necessary to close the control panel 81 and move it to reset. The electric telescopic rod 83 is started. The telescopic end of the electric telescopic rod 83 drives the card joint 831 to move. When the card joint 831 moves, it contacts the elastic clip 811 and drives the control panel 81 to move. Then, the rack 82 drives the one-way gear 93 to rotate clockwise. The one-way gear 93 drives the line wheel 91 to rotate the pay-off rope 92. At this time, the torsion spring 95 further accumulates force. When the control panel 81 moves into the rectangular frame 8, the control panel 81 no longer moves, and the card joint 831 squeezes the elastic clip 811 to move to the two sides. The elastic stretch cloth 10 is no longer affected by the airflow, and the elastic stretch cloth 10 is restored to its original state through its own elasticity. At the same time, after the pull rope 92 no longer exerts pressure on the line wheel 91, the torsion spring 95 is released again and drives the line wheel 91 to reel in the pull rope 92, waiting for the next use of the feeder.

[0035] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. An automatic feeding machine for aquaculture, characterized in that: comprising a hull (1); A carrier frame (2), the carrier frame (2) is mounted on the hull (1), and a material bucket (3) is installed in the carrier frame (2); A conical tube (4), the conical tube (4) is fixedly arranged at the bottom of the material holding barrel (3), a fan (42) is installed on the supporting frame (2), and the air outlet pipe of the fan (42) is connected to the conical tube (4); A spreading mechanism, the spreading mechanism being arranged at one end of the tapered tube (4); A rectangular frame (8), the rectangular frame (8) being mounted on the conical tube (4), a control plate (81) being slidably disposed within the rectangular frame (8), and the control plate (81) being slidably connected to the conical tube (4); An adjusting mechanism is provided on the control panel (81).

2. The automatic feeding machine for aquaculture according to claim 1, characterized in that: A spiral groove (41) is provided in the conical tube (4), and the spiral groove (41) is used to form a rotating vortex in the conical tube (4).

3. The automatic feeding machine for aquaculture according to claim 1, characterized in that: The sprinkling mechanism includes a bearing (5), a bearing (5) is rotatably provided on one side of the conical tube (4), a speaker plate 1 (51) is fixedly provided on the bearing (5), a speaker plate 2 (52) is provided on one side of the speaker plate 1 (51), a conical column (6) is fixedly provided on the speaker plate 2 (52), a gap is provided between the conical column (6) and the conical tube (4), an arc-shaped sprinkling plate (63) is arrayed on the conical column (6), the arc-shaped sprinkling plate (63) is fitted with and fixedly provided on the speaker plate 1 (51) and the speaker plate 2 (52), an L-shaped frame 1 (7) is fixedly provided on one side of the conical tube (4), a material blocking plate (71) is rotatably provided between the speaker plate 1 (51) and the speaker plate 2 (52), and the material blocking plate (71) is fixedly connected to the L-shaped frame 1 (7).

4. The automatic feeding machine for aquaculture according to claim 3, characterized in that: An arc-shaped air guide groove (61) is provided on the conical column (6), and a blade block (62) is fixedly provided in the arc-shaped air guide groove (61).

5. The automatic feeding machine for aquaculture according to claim 1, characterized in that: The invention also includes a special-shaped frame (9), the special-shaped frame (9) is fixedly provided on the carrier frame (2), the control panel (81) and the special-shaped frame (9) are slidably provided, an electric telescopic rod (83) is installed on the special-shaped frame (9), a card joint (831) is fixedly provided at the telescopic end of the electric telescopic rod (83), an elastic clip (811) is installed on one side of the control panel (81), and the card joint (831) cooperates with the elastic clip (811).

6. The automatic feeding machine for aquaculture according to claim 5, characterized in that: The adjusting mechanism comprises a wire wheel (91), the wire wheel (91) is rotatably provided on the special-shaped frame (9), a pull rope (92) is provided around the wire wheel (91), an L-shaped frame 2 (901) is fixedly provided at the bottom of the carrier frame (2), a pulley 1 (902) is rotatably provided on the L-shaped frame 2 (901), the pull rope (92) passes around the pulley 1 (902), a support frame (21) is fixedly provided on the carrier frame (2), an elastic stretch cloth (10) is installed on the support frame (21), and the pull rope (92) is connected to the elastic stretch cloth (10).

7. The automatic feeding machine for aquaculture according to claim 6, characterized in that: The regulating mechanism further comprises a one-way gear (93), one side of the line wheel (91) is provided with the one-way gear (93), a rack (82) is fixedly provided on the control panel (81), and the rack (82) is meshed with the one-way gear (93).

8. The automatic feeding machine for aquaculture according to claim 7, characterized in that: The special-shaped frame (9) further comprises a fixed disk (94), the fixed disk (94) being fixedly arranged on the special-shaped frame (9), the fixed disk (94) being rotatably arranged with the rotating shaft of the line wheel (91), and a torsion spring (95) being connected between the fixed disk (94) and the line wheel (91).

9. The automatic feeding machine for aquaculture according to claim 6, characterized in that: It also includes a second pulley (96), which is symmetrically rotatably provided on the support frame (21), and the pull rope (92) is located between the symmetrical pulleys (96).

10. The automatic feeding machine for aquaculture according to claim 5, characterized in that: It also includes an elastic column (84), the bottom of the rectangular frame (8) is slidably provided with the elastic column (84), the bottom of the control panel (81) is provided with a limiting groove (812), and the elastic column (84) cooperates with the limiting groove (812).

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