A soil filling device for culvert top and its use method

Abstract

The invention relates to the technical field of cave top filling construction, and discloses an open culvert cave top filling device and a use method thereof, comprising a storage tank, the storage tank also comprising a fixed bracket one, a drum screen being rotatably connected at the inner wall of the storage tank, the operation of a motor drives the roller to rotate, the bevel gear one drives the bevel gear two to rotate, the bevel gear two rotates, the belt drives the gear rod to rotate, and the gear ring drives the drum screen to rotate, so that the filling material passes through the drum screen, and larger stones can be separated. The separated larger stones, under the rotation of the drum screen, squeeze and rub against each other, so that relatively fragile sand and gravel and soil blocks are broken into small pieces. Through the operation of the components, the larger stones and soil blocks are separated, so as to avoid uneven distribution of foundation bearing capacity. The larger stones squeeze and rub against each other, so as to break soil blocks and relatively fragile sand and gravel into small pieces, so as to improve the utilization rate of the filling material, and avoid the soil blocks and stones being discharged together, resulting in waste of the filling material.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel top filling construction equipment, in particular to an open culvert tunnel top filling device and a use method thereof. Background Art

[0002] According to the filling conditions on the top of the culvert, culverts can be divided into open culverts and concealed culverts. Open culverts refer to culverts with no filling on the top, which are suitable for low embankments and shallow ditches; while concealed culverts refer to culverts with filling on the top, and the minimum filling thickness should be greater than 50cm. They are usually used in high embankments and deep ditches. The top of the open culvert is usually only used as the surface layer of the road surface. This design makes the open culvert visually clearly separated from the road surface, which is easy to identify and maintain.

[0003] When the equipment is performing earth-filling operations on the top of an open culvert, there may be some large stones and soil blocks and other impurities in the soil, sand and gravel used for the earth-filling operations. Among them, the larger stones may cause uneven distribution of the bearing capacity of the foundation during the earth-filling operations, thereby causing problems such as uneven settlement and compaction of the culvert foundation. To address the above problems, the following solutions are proposed. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a culvert top filling device, comprising a storage tank, a drum screen is rotatably connected to the inner wall of the storage tank, a feed port is fixedly connected to the outer wall of the storage tank, a telescopic plate is fixedly connected to the outer wall of the storage tank, and a collecting and discharging assembly is also fixedly connected to the outer wall of the drum screen, which is used for sucking and squeezing out the gas in the storage tank and controlling the telescopic movement of the telescopic plate; the culvert top filling device also includes:

[0005] A stirring and feeding assembly, the stirring and feeding assembly includes a stirring plate rotatably arranged in the storage tank, which is used to stir the mixed soil, sand and gravel;

[0006] The power transmission mechanism is used to provide driving force to the stirring and discharging component and the collecting and discharging component.

[0007] Preferably, the collecting and discharging assembly includes: a pressure box fixedly connected to the outer wall of the storage tank, a piston plate slidably connected to the inner wall of the pressure box, and an arc block fixedly connected to the bottom of the piston plate; a protruding block fixedly connected to the outer wall of the drum screen, and the protruding block can intermittently squeeze the arc block when the drum screen rotates. When the protruding block moves and contacts the arc block, it squeezes the arc block to move upward. After the protruding block and the arc block lose contact, the arc block moves downward again due to gravity. When the arc block moves, it drives the piston plate to move synchronously. When the piston plate moves, it can suck the external air into the pressure box and then transport it to the pressure pipe.

[0008] Preferably, the inner wall of the air pressure box is fixedly connected with a check valve 1 and a check valve 2, the outer wall of the check valve 2 is fixedly connected with an air pressure pipe, and the outer wall of the air pressure pipe is fixedly connected with the inner wall of the telescopic plate. When the drum screen rotates, the protruding block is synchronously driven to move, intermittently contacting and extruding the arc block, so that the piston plate slides up and down, the check valve 1 is used to realize the one-way transmission of the external air to the inside of the air pressure box, and the check valve 2 is used to realize the one-way transmission of the air inside the air pressure box to the outside, and when the piston plate slides in the air pressure box, the gas can be sucked and extruded.

[0009] Preferably, the collecting and discharging component also includes a connecting pipe fixedly connected to the outer wall of the air pressure tube, the outer wall of the connecting pipe is provided with an air outlet 1, the inner wall of the connecting pipe is slidably connected with a sliding pipe, the inner wall of the sliding pipe is slidably connected to the outer wall of the air pressure tube, and the outer wall of the sliding pipe is provided with an air outlet 2. Utilizing the above-mentioned characteristic that the drum screen rotates continuously, an air pressure box is set. When the drum screen rotates continuously, the protruding block contacts the arc block, and squeezes the arc block to move upward. Then the two lose contact, and the arc block will move downward under the action of gravity. When the arc block moves up and down, the piston plate is synchronously driven to move. When the piston plate moves downward, negative pressure is generated inside the air pressure box, so that external gas enters the air pressure box through the one-way valve 1. When the piston plate moves upward, the gas in the air pressure box is squeezed, so that it enters the air pressure tube through the one-way valve 2. When the gas passes through the air pressure tube, the sliding tube will be pressed to move outward due to the design of the conical surface of the head. At this time, the air outlet 1 and the air outlet 2 are offset from each other to form a closed state, and then the gas passes through the air pressure tube Finally, it enters the telescopic plate and moves it downward, so that the storage tank and one side of the drum screen are closed. When the drum screen stops rotating, the piston plate stops moving synchronously, the air pressure pipe stops intake, and the telescopic plate moves upward under the action of the telescopic spring, so that the gas pushes the sliding tube to retract. At this time, the air outlet 1 and the air outlet 2 are interconnected, and the gas in the telescopic plate can be discharged outward through the air outlet 1 and the air outlet 2. The telescopic plate shrinks and the channel on one side of the drum screen opens. Through the operation of the above components, the larger stones separated can be stored in the drum screen when the drum screen rotates. Then, after the discharging is completed, the drum screen stops rotating, the telescopic plate shrinks the channel and opens, and the larger stones can be discharged outward. At the same time, the wheels can also be used to move the entire equipment to the specified position, the drum screen stops rotating, the telescopic plate shrinks the channel and opens, and the larger stones are discharged in a centralized manner for later recycling and reuse, so as to avoid damage to the drum screen and increase the burden on the motor operation when there are many larger stones in the drum screen.

[0010] Preferably, the collecting and discharging assembly also includes a fixed plate 2 fixedly connected to the inner wall of the telescopic plate, a spring plug is fixedly connected to the bottom of the fixed plate 2, the outer wall of the spring plug is slidably connected to the inner wall of the telescopic plate, a convex rod is fixedly connected to the outer wall of the storage tank, a spring slider is slidably connected to the inner wall of the storage tank, the inner wall of the spring slider is slidably connected to the outer wall of the convex rod, an air outlet 3 is provided on the inner wall of the storage tank, a connecting groove is provided on the inner wall of the telescopic plate, and the spring plug is slidably connected in the connecting groove. The spring plug is pressed against the piston rod and the piston rod is pressed against the piston rod, so that the piston rod can be moved outwards and the gas in the expansion joint is blocked by the spring plug.

[0011] Preferably, a second fixed block is fixedly connected to the inner wall of the telescopic plate, a telescopic spring is fixedly connected to the outer wall of the second fixed block, and a receiving plate is fixedly connected to the outer wall of the storage tank.

[0012] Preferably, the stirring material discharging assembly includes a conveyor belt sleeved on the outer wall of the roller, a fixed rod is fixedly connected to the outer wall of the drum screen, a stirring plate is fixedly connected to the outer wall of the fixed rod, the outer wall of the stirring plate is rotatably connected to the inner wall of the storage tank, and the inner wall of the storage tank is rotatably connected to a rotating shaft 1. When the roller rotates, the conveyor belt is synchronously driven to move, so that the soil, sand and gravel and other filling materials falling on the conveyor belt can fall to the top of the hole through the conveyor belt to realize the filling operation. When the drum screen rotates, the stirring plate is driven to move by the fixed rod, so that the separated soil, sand and gravel are fully mixed together under the continuous stirring of the stirring plate.

[0013] Preferably, the stirring and feeding assembly also includes a rotating plate rotatably connected to the inner wall of the storage tank, the outer wall of the rotating plate is fixedly connected to the outer wall of the rotating shaft one, the outer wall of the storage tank is fixedly connected to a fixed plate one, the top of the fixed plate one is fixedly connected to an electric telescopic rod, the top of the electric telescopic rod is fixedly connected to a rotating shaft two, the bottom of the rotating plate is fixedly connected to a fixed block one, and the inner wall of the fixed block one is rotatably connected to the outer wall of the rotating shaft two. Taking advantage of the fact that the drum screen continuously rotates in the storage tank, a number of fixed rods and stirring plates are arranged on the drum screen, so that when the drum screen rotates, the fixed rods and the stirring plates can be synchronously driven to rotate, so that when the stirring plates rotate, the soil, sand and gravel passing through the drum screen can be fully stirred and mixed. At the same time, during the stirring process, when the stirring plates drive the soil, sand and gravel to move to the top of the storage tank, the soil, sand and gravel will fall downward into the drum screen under the action of gravity, so that the smaller soil and gravel in the soil, sand and gravel will be squeezed and rubbed by the larger stones in the drum screen again, and broken into finer soil, sand and gravel, so that the stirring plate can stir and mix the soil, sand and gravel more fully, and then the electric telescopic rod moves downward, through the rotating shaft two and the fixed block one, The rotating plate is driven to rotate with the rotating shaft 1 as the axis, so that the gap at the bottom of the storage tank is opened, and the soil, sand and gravel fall downward through the bottom gap onto the conveyor belt, so that they pass through the conveyor belt and finally fall to the top of the culvert, thereby realizing the filling operation on the top of the culvert. Through the operation of the above-mentioned components, some smaller soil blocks and gravel are broken into finer soil, sand and gravel, and then fully mixed with other soil, sand and gravel under the stirring of the stirring plate, so that the soil, sand and gravel that finally fall to the top of the cave are in a uniformly mixed state, so that when compacting is carried out later, the various positions of the spread soil, sand and gravel are evenly stressed, thereby enhancing the safety and durability of the entire structure and avoiding uneven settlement and compaction problems caused by uneven distribution of filling materials.

[0014] Preferably, the open culvert top filling device also includes a base support mechanism, the base support mechanism includes a base fixedly connected to the bottom of a fixed bracket one, the top of the base is fixedly connected to a fixed bracket two, the top of the base is fixedly connected to a fixed bracket three, the top of the base is fixedly connected to a fixed bracket four, and wheels are rotatably connected to the outer wall of the base.

[0015] Preferably, the power transmission mechanism includes a motor fixedly connected to the top of the fixed bracket two, the outer wall of the motor is fixedly connected to a roller, the outer wall of the roller is rotatably connected to the inner wall of the fixed bracket three, the outer wall of the roller is fixedly connected to a bevel gear one, the outer wall of the fixed bracket four is rotatably connected to a bevel gear two, the outer wall of the bevel gear two is meshingly connected with the outer wall of the bevel gear one, a belt is sleeved on the outer wall of the bevel gear two, the outer wall of the fixed bracket four is rotatably connected to a gear rod, the outer wall of the gear rod is sleeved with a belt, the outer wall of the drum screen is fixedly connected to a gear ring, the outer wall of the gear ring is meshingly connected with the outer wall of the gear rod, and the outer wall of the roller is sleeved with a stirring and unloading component, and utilizing the characteristic that the gear ring synchronously drives the drum screen to rotate when it rotates, a motor is provided, and when the motor is energized and running, it drives the roller to rotate, and when the roller rotates, the bevel gear two is driven to rotate through the bevel gear one, and when the bevel gear two rotates, the gear rod is driven to rotate through the belt, and when the gear rod rotates, The gear ring synchronously drives the drum screen to rotate, so that the soil, sand, gravel and other filling materials entering from the feed port can be screened and separated by the rotation of the drum screen, and the separated larger stones will be squeezed and rubbed against each other under the continuous rotation of the drum screen, so that the relatively fragile sand, gravel and soil are broken into small pieces that can pass through the drum screen. Through the operation of the above components, the larger stone impurities and larger soil blocks can be separated, and the uneven distribution of foundation bearing capacity caused by larger stones during the filling operation, thereby causing uneven settlement and compaction of the culvert foundation. At the same time, the separated larger stones can be squeezed and rubbed against each other, and the larger soil blocks and relatively fragile sand and gravel can be broken into small pieces that can pass through the drum screen, and mixed with the soil, sand and gravel outside the drum screen, thereby improving the utilization rate of filling materials, reducing cost expenditure, and avoiding the discharge of larger soil blocks and stones together, resulting in waste of filling materials.

[0016] A method for using a culvert top filling device comprises the following steps:

[0017] S1: Start the equipment: turn on the power of the motor and start the top filling device of the open culvert;

[0018] S2: Filling: transport and fill earth, sand and gravel and other filling materials into the feed port, and the motor drives the drum screen to rotate, so that the earth, sand and gravel and other filling materials entering from the feed port are screened and crushed;

[0019] S3: Screening and separation: When the drum screen rotates continuously, the protruding block and the arc block are in intermittent contact, squeezing the arc block to move up and down continuously, thereby driving the piston plate to move: when the piston plate moves downward, negative pressure is generated inside the air pressure box, allowing the external gas to enter the air pressure box through the one-way valve 1. When the piston plate moves upward, the gas in the air pressure box is squeezed, so that it enters the air pressure pipe through the one-way valve 2. When the gas passes through the air pressure pipe, the sliding pipe will be pressed to move outward. At this time, the air outlet 1 and the air outlet 2 are offset from each other to form a closed state, and then the gas passes through the air pressure pipe and finally Enter the telescopic plate, move the telescopic plate downward, close the storage tank and one side of the drum screen, and store the separated larger stones inside the drum screen; when the drum screen stops rotating, the piston plate stops moving synchronously, the air pressure pipe stops taking in air, and the telescopic plate moves upward under the action of the telescopic spring, so that the gas pushes the sliding tube to retract. At this time, the gas outlet 1 and the gas outlet 2 are interconnected, and the gas in the telescopic plate can be discharged outward through the gas outlet 1 and the gas outlet 2. The telescopic plate shrinks, the channel on one side of the drum screen opens, and the larger stones can be discharged outward;

[0020] S4: Mixing and crushing: When the drum screen rotates, it can synchronously drive the fixed rod and the stirring plate to rotate, fully stirring and mixing the soil and gravel in the drum screen, so that the separated larger stones can be squeezed and rubbed against each other, and the larger soil blocks and more fragile gravel can be crushed into small pieces that can pass through the drum screen, and mixed with the soil and gravel outside the drum screen, so that the soil and gravel that finally fall to the top of the hole are in a uniformly mixed state;

[0021] S5: Filling operation: drive the electric telescopic rod to move downward, through the rotating shaft 2 and the fixed block 1, drive the rotating plate to rotate with the rotating shaft 1 as the axis, so that the gap at the bottom of the storage tank is opened, and the soil and sand and gravel fall downward through the bottom gap to the conveyor belt, so that it passes through the conveyor belt and finally falls to the top of the open culvert tunnel, thereby realizing the filling operation on the top of the tunnel.

[0022] The present invention has the following beneficial effects:

[0023] (1) The present invention utilizes the characteristic that the gear ring can synchronously drive the drum screen to rotate when it rotates, and sets a motor. When the motor is powered on, it drives the roller to rotate. When the roller rotates, the bevel gear 1 drives the bevel gear 2 to rotate. When the bevel gear 2 rotates, the belt drives the gear rod to rotate. When the gear rod rotates, the gear ring synchronously drives the drum screen to rotate, so that the soil, sand and gravel and other filling materials entering from the feed port can be screened and separated from the larger stone impurities and larger soil blocks under the rotation of the drum screen. At the same time, the separated larger stones will be continuously squeezed and rubbed against each other under the continuous rotation of the drum screen, so that The relatively fragile sand and gravel and soil blocks are broken into small pieces that can pass through the drum screen. Through the operation of the above components, larger stone impurities and larger soil blocks can be separated to avoid uneven distribution of foundation bearing capacity caused by larger stones during filling operations, thereby causing uneven settlement and compaction of the culvert foundation. At the same time, the separated larger stones can be squeezed and rubbed against each other, and the larger soil blocks and relatively fragile sand and gravel can be broken into small pieces that can pass through the drum screen and mixed with the soil and sand outside the drum screen, thereby improving the utilization rate of filling materials, reducing cost expenditure, and avoiding the discharge of larger soil blocks and stones together, resulting in waste of filling materials.

[0024] (2) The present invention utilizes the characteristic that the drum screen continuously rotates in the material storage tank, and arranges a plurality of fixed rods and stirring plates on the drum screen, so that when the drum screen rotates, it can synchronously drive the fixed rods and the stirring plates to rotate, so that when the stirring plates rotate, they can fully stir and mix the soil and gravel passing through the drum screen. At the same time, during the stirring process, when the stirring plates drive the soil and gravel to move to the top of the material storage tank, the soil and gravel will fall downward into the drum screen under the action of gravity, so that the smaller soil and gravel in the soil and gravel will be squeezed and rubbed by the larger stones in the drum screen again, and broken into finer soil and gravel, so that the stirring plates can stir and mix the soil and gravel more fully, and then the electric telescopic rod moves downward, through the rotating shaft 2 and the fixed rod Block one drives the rotating plate to rotate with the rotating shaft one as the axis, so that the gap at the bottom of the storage tank is opened, and the soil, sand and gravel fall downward through the gap at the bottom to the conveyor belt, so that they pass through the conveyor belt and finally fall to the top of the culvert tunnel, so as to realize the filling operation on the top of the tunnel. Through the operation of the above-mentioned components, some smaller soil blocks and gravel are broken into finer soil and gravel, and then fully mixed with other soil and gravel under the stirring of the stirring plate, so that the soil, sand and gravel that finally fall to the top of the tunnel are in a uniformly mixed state, so that when compacting is carried out later, the various positions of the spread soil, sand and gravel are evenly stressed, thereby enhancing the safety and durability of the entire structure and avoiding uneven settlement and compaction problems caused by uneven distribution of filling materials.

[0025] (3) The present invention utilizes the above-mentioned characteristic that the drum screen rotates continuously and sets an air pressure box. When the drum screen rotates continuously, the protruding block contacts with the arc block, squeezing the arc block to move upward, and then the two lose contact, and the arc block moves downward under the action of gravity. When the arc block moves up and down, it synchronously drives the piston plate to move. When the piston plate moves downward, negative pressure is generated inside the air pressure box, so that external gas enters the air pressure box through the one-way valve 1. When the piston plate moves upward, it squeezes the gas in the air pressure box and enters the air pressure pipe through the one-way valve 2. When the gas passes through the air pressure pipe, the sliding pipe is pressed outward due to the design of the conical surface of the head. At this time, the air outlet 1 and the air outlet 2 are offset from each other to form a closed state. Then the gas passes through the air pressure pipe and finally enters the telescopic plate, causing the telescopic plate to move downward, so that the storage tank and one side of the drum screen form a closed state. When the drum screen stops rotating, At the same time, the piston plate stops moving, the air pressure pipe stops taking in air, and the telescopic plate moves upward under the action of the telescopic spring, so that the gas pushes the sliding tube to retract. At this time, the air outlet one and the air outlet two are interconnected, and the gas in the telescopic plate can be discharged outward through the air outlet one and the air outlet two. The telescopic plate shrinks, and the channel on one side of the drum screen opens. Through the operation of the above components, the larger stones separated when the drum screen rotates can be stored inside the drum screen. Then, after the discharging is completed, the drum screen stops rotating, the telescopic plate shrinks the channel and opens, and the larger stones can be discharged outward. At the same time, the wheels can also be used to move the entire equipment to the specified position, the drum screen stops rotating, the telescopic plate shrinks the channel and opens, and the larger stones are discharged in a centralized manner for later recycling and reuse, thereby avoiding damage to the drum screen and increasing the burden on the motor operation when there are many larger stones in the drum screen.

[0026] (4) The present invention utilizes the characteristic that the gas moves downward after entering the telescopic plate, and sets a spring plug. When the telescopic plate moves downward to the bottom, it squeezes the spring slider to make it shrink inward. At this time, the spring plug contacts the convex rod, and the spring plug shrinks inward under pressure. The connecting groove blocked by the spring plug opens, so that the saturated gas in the telescopic plate can enter the gas outlet three through the connecting groove and then be discharged outward. When the telescopic plate moves upward, the spring plug moves outward under pressure and continues to block the outlet of the connecting groove to prevent gas leakage. At the same time, the spring slider also moves upward under pressure and is flush with the upper surface of the convex rod. Through the operation of the above-mentioned components, the gas in the telescopic plate can be discharged outward when it is saturated, and the normal expansion and contraction of the telescopic plate will not be affected by the closing of the spring plug, so as to avoid that the gas inside the telescopic plate is saturated when the gas is continuously transported. The continued transport of gas will cause damage to the air pressure pipe and the inside of the telescopic plate. In addition, when the gas inside the telescopic plate is saturated, the piston plate will be stuck and unable to move, thereby causing the protruding block to be blocked during operation, unable to operate normally, and even causing damage to the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a schematic diagram of the internal components of the overall structure of the present invention;

[0029] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 3 It is a cross-sectional schematic diagram of the power transmission mechanism of the present invention;

[0031] Figure 4 It is a cross-sectional schematic diagram of the stirring and feeding assembly of the present invention;

[0032] Figure 5 For the present invention Figure 4 A is an enlarged schematic diagram;

[0033] Figure 6 It is a cross-sectional schematic diagram of the collection and discharge assembly of the present invention;

[0034] Figure 7 For the present invention Figure 6 A magnified schematic diagram of B;

[0035] Figure 8 It is a schematic diagram of the internal components of the collection and discharge assembly of the present invention;

[0036] Fig. 9 For the present invention Figure 8 A magnified schematic diagram of middle C;

[0037] Fig.10 It is a schematic diagram of the working process of the present invention.

[0038] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0039] In the figure: 1. Storage tank; 101. Fixed bracket 1; 102. Drum screen; 103. Telescopic plate; 104. Feed port; 2. Base support mechanism; 201. Base; 202. Fixed bracket 2; 203. Fixed bracket 3; 204. Fixed bracket 4; 205. Wheel; 3. Power transmission mechanism; 301. Motor; 302. Roller; 303. Bevel gear 1; 304. Bevel gear 2; 305. Belt; 306. Gear rod; 307. Gear ring; 4. Stirring and unloading assembly; 401. Conveyor belt; 402. Fixed rod; 403. Stirring plate; 404. Rotating shaft 1; 405. Rotating plate; 4 06, fixed plate one; 407, electric telescopic rod; 408, rotating shaft two; 409, fixed block one; 5, collecting and discharging assembly; 501, protruding block; 502, air pressure box; 503, one-way valve one; 504, one-way valve two; 505, piston plate; 506, arc block; 507, air pressure tube; 508, fixed block two; 509, telescopic spring; 510, receiving plate; 511, connecting pipe; 512, air outlet one; 513, sliding pipe; 514, air outlet two; 515, connecting groove; 516, fixed plate two; 517, spring plug; 518, protruding rod; 519, spring slider; 520, air outlet three. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe 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 creative work are within the scope of protection of the present invention.

[0041] For example, see Figure 1 - Figure 3 The present invention is a soil filling device for a culvert top, comprising a storage tank 1, a drum screen 102 is rotatably connected to the inner wall of the storage tank 1, a feed port 104 is fixedly connected to the outer wall of the storage tank 1, a telescopic plate 103 is fixedly connected to the outer wall of the storage tank 1, and a collecting and discharging component 5 is also fixedly connected to the outer wall of the drum screen 102, which is used for sucking and squeezing out the gas in the storage tank 1 and controlling the telescopic movement of the telescopic plate 103; the soil filling device for a culvert top also includes:

[0042] A stirring and feeding assembly 4, the stirring and feeding assembly 4 comprises a stirring plate 403 rotatably arranged in the storage tank 1, and is used for stirring the mixed soil, sand and gravel;

[0043] The power transmission mechanism 3 is used to provide driving force to the stirring and discharging component 4 and the collecting and discharging component 5.

[0044] The power transmission mechanism 3 includes a motor 301 fixedly connected to the top of the second fixed bracket 202, a roller 302 is fixedly connected to the outer wall of the motor 301, the outer wall of the roller 302 is rotatably connected to the inner wall of the third fixed bracket 203, a bevel gear 1 303 is fixedly connected to the outer wall of the roller 302, a bevel gear 2 304 is rotatably connected to the outer wall of the fourth fixed bracket 204, the outer wall of the bevel gear 2 304 is meshed with the outer wall of the bevel gear 1 303, a belt 305 is sleeved on the outer wall of the bevel gear 2 304, and the outer wall of the fourth fixed bracket 204 is rotatably connected to the inner wall of the third fixed bracket 203. The outer wall of the gear rod 306 is sleeved with a belt 305, and the outer wall of the drum screen 102 is fixedly connected with a gear ring 307. The outer wall of the gear ring 307 is meshed with the outer wall of the gear rod 306. The outer wall of the roller 302 is sleeved with a stirring and unloading component 4. The gear ring 307 is used to synchronously drive the drum screen 102 to rotate when it rotates. A motor 301 is set. When the motor 301 is powered on, it drives the roller 302 to rotate. When the roller 302 rotates, the bevel gear 1 303 drives the bevel gear 2 304 to rotate. When the gear 2 304 rotates, the belt 305 drives the gear rod 306 to rotate. When the gear rod 306 rotates, the gear ring 307 synchronously drives the drum screen 102 to rotate, so that the soil, sand and gravel and other filling materials entering from the feed port 104 can be screened and separated by the rotation of the drum screen 102, and the separated larger stones will be continuously squeezed and rubbed against each other under the continuous rotation of the drum screen 102, so that the relatively fragile sand and gravel and soil are broken into small pieces that can pass through the drum screen 102. The operation of the above components can separate larger stone impurities and larger soil blocks, avoiding uneven distribution of foundation bearing capacity caused by larger stones during filling operations, thereby causing uneven settlement and compaction of the culvert foundation. At the same time, the separated larger stones can be squeezed and rubbed against each other, and the larger soil blocks and fragile sand and gravel can be crushed into small pieces that can pass through the drum screen 102, and mixed with the soil and gravel outside the drum screen 102, thereby improving the utilization rate of filling materials, reducing cost expenditures, and avoiding the discharge of larger soil blocks and stones together, resulting in waste of filling materials.

[0045] The open culvert top filling device also includes a base support mechanism 2, which includes a base 201 fixedly connected to the bottom of a fixed bracket 101, a fixed bracket 202 fixedly connected to the top of the base 201, a fixed bracket 3 203 fixedly connected to the top of the base 201, a fixed bracket 4 204 fixedly connected to the top of the base 201, and a wheel 205 rotatably connected to the outer wall of the base 201.

[0046] For example 2, please refer to Figure 4 - Fig.10The present invention is a soil filling device for the top of an open culvert. On the basis of the first embodiment, the collecting and discharging assembly 5 comprises: a pressure box 502 fixedly connected to the outer wall of the storage tank 1, a piston plate 505 slidably connected to the inner wall of the pressure box 502, and an arc block 506 fixedly connected to the bottom of the piston plate 505; a protruding block 501 fixedly connected to the outer wall of the drum screen 102, and the protruding block 501 can intermittently squeeze the arc block 506 under the rotation of the drum screen 102. When the protruding block 501 moves and contacts the arc block 506, it will squeeze the arc block 506 to move upward. After the protruding block 501 and the arc block 506 lose contact, the arc block 506 moves downward again under the action of gravity. When the arc block 506 moves, it synchronously drives the piston plate 505 to move. When the piston plate 505 moves, the external air can be sucked into the pressure box 502 and then transported to the pressure pipe 507.

[0047] The inner wall of the air pressure box 502 is fixedly connected with a one-way valve 1 503 and a one-way valve 2 504, and the outer wall of the one-way valve 2 504 is fixedly connected with an air pressure pipe 507, and the outer wall of the air pressure pipe 507 is fixedly connected to the inner wall of the telescopic plate 103. When the drum screen 102 rotates, the protruding block 501 is synchronously driven to move, and the one-way valve 1 503 is used to realize the one-way transmission of the external air to the inside of the air pressure box 502, and the one-way valve 2 504 is used to realize the one-way transmission of the air inside the air pressure box 502 to the outside. When the piston plate 505 slides in the air pressure box 502, the gas can be sucked and squeezed out.

[0048] Furthermore, a second fixing block 508 is fixedly connected to the inner wall of the telescopic plate 103 , a telescopic spring 509 is fixedly connected to the outer wall of the second fixing block 508 , and a receiving plate 510 is fixedly connected to the outer wall of the storage tank 1 .

[0049] The collecting and discharging assembly 5 also includes a connecting pipe 511 fixedly connected to the outer wall of the air pressure pipe 507, an air outlet 1 512 is provided on the outer wall of the connecting pipe 511, a sliding pipe 513 is slidably connected to the inner wall of the connecting pipe 511, the inner wall of the sliding pipe 513 is slidably connected to the outer wall of the air pressure pipe 507, and an air outlet 2 514 is provided on the outer wall of the sliding pipe 513. By utilizing the above-mentioned characteristic that the drum screen 102 rotates continuously, an air pressure box 502 is provided. When the drum screen 102 rotates continuously, the protruding block 501 contacts the arc block 506, squeezing the arc block 506 to move upward, and then the two lose contact, and the arc block 506 will move downward with the action of gravity. When the arc block 506 moves up and down, the piston plate 505 is driven to move synchronously. When the piston plate 505 moves downward, negative pressure is generated inside the air pressure box 502, so that the external gas enters the air pressure box 502 through the one-way valve 1 503. When the piston plate 505 moves upward, the gas in the air pressure box 502 is squeezed to enter the air pressure tube 507 through the one-way valve 2 504. When the gas passes through the air pressure tube 507, the sliding tube 513 will be pressed outward due to the design of the conical surface of the head. At this time, the air outlet 1 512 and the air outlet 2 514 are offset from each other to form a closed state, and then the gas passes through. Finally, the air pressure tube 507 enters the telescopic plate 103, causing the telescopic plate 103 to move downward, so that the storage tank 1 and one side of the drum screen 102 are closed. When the drum screen 102 stops rotating, the piston plate 505 stops moving synchronously, the air pressure tube 507 stops taking in air, and the telescopic plate 103 is acted upon by the telescopic spring 509 to move upward, causing the gas to push the sliding tube 513 to retract. At this time, the gas outlet 1 512 and the gas outlet 2 514 are interconnected, and the gas in the telescopic plate 103 can be discharged outward through the gas outlet 1 512 and the gas outlet 2 514. The telescopic plate 103 shrinks, and the channel on one side of the drum screen 102 opens, and the gas outlet 103 is retracted. The operation of the above components can make the separated larger stones stored in the inside of the drum screen 102 when the drum screen 102 rotates. Then, after the discharging is completed, the drum screen 102 stops rotating, the telescopic plate 103 retracts and opens the channel, and the larger stones can be discharged outward. At the same time, the whole equipment can be moved to the specified position by the wheel 205, the drum screen 102 stops rotating, the telescopic plate 103 retracts and opens the channel, and the larger stones are discharged in a centralized manner for later recycling and reuse, thereby avoiding damage to the drum screen 102 and increasing the burden on the operation of the motor 301 when there are many larger stones in the drum screen 102.

[0050] The collecting and discharging assembly 5 also includes a fixing plate 516 fixedly connected to the inner wall of the telescopic plate 103, a spring plug 517 fixedly connected to the bottom of the fixing plate 516, the outer wall of the spring plug 517 is slidably connected to the inner wall of the telescopic plate 103, a convex rod 518 is fixedly connected to the outer wall of the storage tank 1, a spring slider 519 is slidably connected to the inner wall of the storage tank 1, the inner wall of the spring slider 519 is slidably connected to the outer wall of the convex rod 518, and an air outlet 3 is provided on the inner wall of the storage tank 1 520, a connecting groove 515 is provided on the inner wall of the telescopic plate 103, and a spring plug 517 is slidably connected in the connecting groove 515. By utilizing the characteristic that the gas moves downward after entering the telescopic plate 103, a spring plug 517 is provided. When the telescopic plate 103 moves downward to the bottom, the spring slider 519 is squeezed to shrink inward. At this time, the spring plug 517 and the protruding rod 518 contact each other, and the spring plug 517 shrinks inward under pressure, and the connecting groove 515 blocked by the spring plug 517 is opened. When the expansion plate 103 is in the state of being saturated, the spring plug 517 is pressed to move outward, and continues to block the outlet of the connecting groove 515 to prevent the gas from leaking out. At the same time, the spring slider 519 is also pressed to move upward, and is flush with the upper surface of the protruding rod 518. Through the operation of the above-mentioned components, the gas in the expansion plate 103 can be discharged when it is saturated, and the normal expansion and contraction of the expansion plate 103 is not affected by the closing of the spring plug 517, so as to avoid the continuous delivery of gas to make the gas inside the expansion plate 103 saturated, and the continued delivery of gas will cause damage to the air pressure tube 507 and the inside of the expansion plate 103, and when the gas inside the expansion plate 103 is saturated, the piston plate 505 will be stuck and unable to move, thereby hindering the protruding block 501 from running, and failing to operate normally, and even causing damage to the equipment.

[0051] For implementation three, please refer to Figure 4 - Fig.10 The present invention is a soil filling device for a culvert top. On the basis of the first embodiment, the stirring material discharge component 4 includes a conveyor belt 401 sleeved on the outer wall of the roller 302, a fixed rod 402 is fixedly connected to the outer wall of the drum screen 102, a stirring plate 403 is fixedly connected to the outer wall of the fixed rod 402, the outer wall of the stirring plate 403 is rotatably connected to the inner wall of the storage tank 1, and a rotating shaft 1 404 is rotatably connected to the inner wall of the storage tank 1. When the roller 302 rotates, the conveyor belt 401 is synchronously driven to move, so that the soil, sand and gravel and other filling materials falling on the conveyor belt 401 can fall to the top of the cave through the conveyor belt 401 to realize the soil filling operation. When the drum screen 102 rotates, the stirring plate 403 is driven to move by the fixed rod 402, so that the separated soil, sand and gravel are fully mixed together under the continuous stirring of the stirring plate 403.

[0052] The stirring material discharging component 4 also includes a rotating plate 405 rotatably connected to the inner wall of the storage tank 1, the outer wall of the rotating plate 405 is fixedly connected to the outer wall of the rotating shaft 1 404, the outer wall of the storage tank 1 is fixedly connected to a fixed plate 1 406, the top of the fixed plate 1 406 is fixedly connected to an electric telescopic rod 407, the top of the electric telescopic rod 407 is fixedly connected to a rotating shaft 2 408, the bottom of the rotating plate 405 is fixedly connected to a fixed block 1 409, the inner wall of the fixed block 1 409 is rotatably connected to the outer wall of the rotating shaft 2 408, and the rotating plate 405 is fixedly connected to the outer wall of the rotating shaft 2 408. Due to the characteristic that the drum screen 102 is constantly rotating in the storage tank 1, a plurality of fixed rods 402 and stirring plates 403 are arranged on the drum screen 102, so that when the drum screen 102 rotates, the fixed rods 402 and the stirring plates 403 can be synchronously driven to rotate, so that when the stirring plates 403 rotate, the soil and gravel passing through the drum screen 102 can be fully stirred and mixed. At the same time, during the stirring process, when the stirring plates 403 drive the soil and gravel to move to the top of the storage tank 1, the soil and gravel will fall downward into the drum screen 102 under the action of gravity. The smaller soil and gravel in the soil and gravel are squeezed and rubbed by the larger stones in the drum screen 102 again, and are broken into finer soil and gravel, so that the stirring plate 403 can stir and mix the soil and gravel more fully, and then the electric telescopic rod 407 moves downward, and drives the rotating plate 405 to rotate around the rotating shaft 1 404 as the axis through the rotating shaft 2 408 and the fixed block 1 409, so that the gap at the bottom of the storage tank 1 is opened, and the soil and gravel fall downward through the gap at the bottom onto the conveyor belt 401, so that it passes through the conveyor belt 401 and finally falls to the open At the top of the culvert tunnel, the filling operation on the top of the tunnel is realized. Through the operation of the above-mentioned components, some smaller soil and gravel are broken into finer soil and gravel, and then fully mixed with other soil and gravel under the stirring of the stirring plate 403, so that the soil and gravel that finally fall on the top of the tunnel are in a uniformly mixed state, so that when compacting is carried out later, the various positions of the spread soil and gravel are evenly stressed, thereby enhancing the safety and durability of the entire structure and avoiding uneven settlement and compaction problems caused by uneven distribution of filling materials.

[0053] The method for using the open culvert top filling device comprises the following steps:

[0054] S1: Start the equipment: turn on the power of the motor 301 and start the top filling device of the open culvert;

[0055] S2: Filling: soil, sand and gravel and other filling materials are transported and filled into the feed port 104, and the motor 301 drives the drum screen 102 to rotate, so that the soil, sand and gravel and other filling materials entering from the feed port 104 are screened and crushed;

[0056] S3: Screening and separation: When the drum screen 102 is continuously rotating, the protruding block 501 is in intermittent contact with the arc block 506, squeezing the arc block 506 to continuously move up and down, thereby driving the piston plate 505 to move: when the piston plate 505 moves downward, negative pressure is generated inside the air pressure box 502, allowing external gas to enter the air pressure box 502 through the one-way valve 1 503; when the piston plate 505 moves upward, the gas in the air pressure box 502 is squeezed, allowing it to enter the air pressure pipe 507 through the one-way valve 2 504; when the gas passes through the air pressure pipe 507, the sliding pipe 513 is pressed to move outward; at this time, the air outlet 1 512 and the air outlet 2 514 are offset from each other to form a closed state, and then the gas passes through the air pressure pipe 507 to the end. After that, it enters the telescopic plate 103, so that the telescopic plate 103 moves downward, so that the storage tank 1 and one side of the drum screen 102 form a closed state, and the separated larger stones are stored in the inside of the drum screen 102; when the drum screen 102 stops rotating, the piston plate 505 stops moving synchronously, the air pressure pipe 507 stops taking in air, and the telescopic plate 103 is acted upon by the telescopic spring 509 to move upward, so that the gas pushes the sliding tube 513 to retract, and at this time, the gas outlet 1 512 and the gas outlet 2 514 are interconnected, and the gas in the telescopic plate 103 can be discharged outward through the gas outlet 1 512 and the gas outlet 2 514, the telescopic plate 103 shrinks, and the channel on one side of the drum screen 102 opens, so that the larger stones can be discharged outward;

[0057] S4: Mixing and crushing: When the drum screen 102 rotates, it can synchronously drive the fixed rod 402 and the stirring plate 403 to rotate, and fully stir and mix the soil and gravel in the drum screen 102, so that the separated larger stones can be squeezed and rubbed against each other, and the larger soil blocks and the more fragile gravel can be crushed into small pieces that can pass through the drum screen 102, and mixed with the soil and gravel outside the drum screen 102, so that the soil and gravel that finally fall to the top of the hole are in a uniformly mixed state;

[0058] S5: Filling operation: drive the electric telescopic rod 407 to move downward, and drive the rotating plate 405 to rotate around the rotating shaft 1 404 through the rotating shaft 2 408 and the fixed block 1 409, so that the gap at the bottom of the storage tank 1 is opened, and the soil and gravel fall downward through the gap at the bottom onto the conveyor belt 401, so that it passes through the conveyor belt 401 and finally falls to the top of the open culvert, thereby realizing the filling operation on the top of the culvert.

[0059] A specific application of this embodiment is: before using the equipment, first connect the power supply of the motor 301 to make it powered on, and then fill the filling materials such as soil, sand and gravel. When the motor 301 is powered on, it drives the roller 302 to rotate. When the roller 302 rotates, the bevel gear 1 303 drives the bevel gear 2 304 to rotate. When the bevel gear 2 304 rotates, the belt 305 drives the gear rod 306 to rotate. When the gear rod 306 rotates, the gear ring 307 synchronously drives the drum screen 102 to rotate, so that the filling materials such as soil, sand and gravel entering from the feed port 104 can be screened and separated by the rotation of the drum screen 102, and the separated larger stone impurities and larger soil blocks can be separated at the same time. The stones will be constantly squeezed and rubbed against each other as the drum screen 102 rotates continuously, so that the relatively fragile sand and gravel and soil blocks among them are broken into small pieces that can pass through the drum screen 102. Through the operation of the above components, larger stone impurities and larger soil blocks can be separated, so that the larger stones can be prevented from causing uneven distribution of foundation bearing capacity during the filling operation, thereby causing uneven settlement and compaction of the culvert foundation. At the same time, the separated larger stones can be squeezed and rubbed against each other, and the larger soil blocks and relatively fragile sand and gravel can be broken into small pieces that can pass through the drum screen 102, and mixed with the soil and gravel outside the drum screen 102, so as to improve the utilization rate of the filling materials, reduce cost expenditure, and avoid the discharge of larger soil blocks and stones together. The rotary drum 102 can synchronously drive the fixed rod 402 and the stirring plate 403 to rotate when the rotary drum 102 rotates, so that the stirring plate 403 can fully stir and mix the soil and gravel passing through the rotary drum 102. At the same time, during the stirring process, when the stirring plate 403 drives the soil and gravel to move to the top of the storage tank 1, the soil and gravel will fall downward into the rotary drum 102 under the action of gravity, so that the smaller soil and gravel in the soil and gravel will be squeezed and rubbed by the larger stones in the rotary drum 102 again, and broken into finer soil and gravel, so that the stirring plate 403 can stir and mix the soil and gravel more fully. Then the electric telescopic rod 407 moves downward, and drives the rotary drum 102 through the rotating shaft 2 408 and the fixed block 1 409. The movable plate 405 rotates around the rotating shaft 404 to open the gap at the bottom of the storage tank 1, and the soil and gravel fall downward through the gap at the bottom to the conveyor belt 401, so that it passes through the conveyor belt 401 and finally falls to the top of the culvert, thereby realizing the filling operation on the top of the culvert. Through the operation of the above-mentioned components, some smaller soil and gravel are broken into finer soil and gravel, and then are fully mixed with other soil and gravel under the stirring of the stirring plate 403, so that the soil and gravel that finally fall to the top of the culvert are in a uniformly mixed state, so that when compacting is carried out later, the various positions of the spread soil and gravel are evenly stressed, thereby enhancing the safety and durability of the entire structure and avoiding uneven settlement and compaction problems caused by uneven distribution of filling materials.

[0060] Taking advantage of the above-mentioned feature that the drum screen 102 rotates continuously, an air pressure box 502 is set. When the drum screen 102 rotates continuously, the protruding block 501 contacts the arc block 506, squeezing the arc block 506 to move upward, and then the two lose contact, and the arc block 506 moves downward under the action of gravity. When the arc block 506 moves up and down, it drives the piston plate 505 to move synchronously. When the piston plate 505 moves downward, negative pressure is generated inside the air pressure box 502, so that the external gas enters the air pressure box 502 through the one-way valve 503. When the piston plate 505 moves upward, the gas in the air pressure box 502 is squeezed, so that it enters the air pressure pipe 507 through the one-way valve 2 504. When the gas passes through the air pressure pipe 507, the sliding pipe 513 is pressed outward due to the design of the conical surface of the head. At this time, the air outlet 1 512 and the air outlet 2 514 are offset from each other to form a closed state. Then the gas passes through the air pressure pipe 507 and finally enters the telescopic plate 103, causing the telescopic plate 103 to move downward, so that the storage tank 1 and one side of the drum screen 102 are closed. When the drum screen 102 stops When rotating, the piston plate 505 stops moving synchronously, the air pressure tube 507 stops taking in air, and the telescopic plate 103 moves upward under the action of the telescopic spring 509, so that the gas pushes the sliding tube 513 to retract. At this time, the gas outlet 1 512 and the gas outlet 2 514 are interconnected, and the gas in the telescopic plate 103 can be discharged outward through the gas outlet 1 512 and the gas outlet 2 514. The telescopic plate 103 shrinks, and the channel on one side of the drum screen 102 is opened. Through the operation of the above components, when the drum screen 102 rotates, the larger particles separated can be The stones are stored inside the drum screen 102. After the discharge is completed, the drum screen 102 stops rotating, the retractable plate 103 opens the retractable channel, and the larger stones can be discharged outward. At the same time, the entire equipment can be moved to the specified position by the wheels 205. The drum screen 102 stops rotating, the retractable plate 103 opens the retractable channel, and the larger stones are discharged in a centralized manner for later recycling and reuse, thereby avoiding damage to the drum screen 102 and increasing the burden on the operation of the motor 301 when there are many larger stones in the drum screen 102.

[0061] Taking advantage of the fact that the gas moves downward after entering the telescopic plate 103, a spring plug 517 is provided. When the telescopic plate 103 moves downward to the bottom, the spring slider 519 is squeezed to shrink inward. At this time, the spring plug 517 and the protruding rod 518 contact each other, and the spring plug 517 shrinks inward under pressure, and the connecting groove 515 blocked by the spring plug 517 opens, so that the saturated gas in the telescopic plate 103 can enter the gas outlet 3 520 through the connecting groove 515, and then be discharged outward. When the telescopic plate 103 moves upward, the spring plug 517 moves outward under pressure, continues to block the outlet of the connecting groove 515, and prevents gas leakage. At the same time, the spring slider 519 is pressed It also moves upward and is flush with the upper surface of the protruding rod 518. Through the operation of the above-mentioned components, the gas in the telescopic plate 103 can be discharged outward when it is saturated, and the normal expansion and contraction of the telescopic plate 103 will not be affected by the closure of the spring plug 517, so as to avoid that the gas inside the telescopic plate 103 is saturated due to continuous gas delivery, and the continued delivery of gas will cause damage to the air pressure tube 507 and the telescopic plate 103. In addition, when the gas inside the telescopic plate 103 is saturated, the piston plate 505 will be stuck and unable to move, thereby obstructing the protruding block 501 during operation, preventing it from operating normally, and even causing damage to the equipment.

[0062] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A culvert top filling device, comprising a storage tank (1), a drum screen (102) being rotatably connected to the inner wall of the storage tank (1), and a feed port (104) being fixedly connected to the outer wall of the storage tank (1), characterized in that: The outer wall of the material storage tank (1) is fixedly connected to a telescopic plate (103), and the outer wall of the drum screen (102) is also fixedly connected to a collecting and discharging assembly (5) for controlling the telescopic movement of the telescopic plate (103); the collecting and discharging assembly (5) comprises: an air pressure box (502) fixedly connected to the outer wall of the material storage tank (1), a piston plate (505) slidably connected to the inner wall of the air pressure box (502), and an arc block (505) fixedly connected to the bottom of the piston plate (505). 6); a protruding block (501) is fixedly connected to the outer wall of the drum screen (102), and the protruding block (501) can intermittently squeeze the arc block (506) when the drum screen (102) rotates; a one-way valve (503) and a one-way valve (504) are fixedly connected to the inner wall of the air pressure box (502), and an air pressure pipe (507) is fixedly connected to the outer wall of the one-way valve (504), and the outer wall of the air pressure pipe (507) is in contact with the inner wall of the telescopic plate (103). The telescopic plate (103) is fixedly connected to a second fixing block (508) on the inner wall thereof, and a telescopic spring (509) is fixedly connected to the outer wall of the second fixing block (508); a connecting pipe (511) is fixedly connected to the outer wall of the air pressure pipe (507), an air outlet (512) is provided on the outer wall of the connecting pipe (511), and a sliding pipe (513) is slidably connected to the inner wall of the connecting pipe (511), and the head of the sliding pipe (513) is a conical surface; the sliding pipe The inner wall of the sliding tube (513) is slidably connected to the outer wall of the air pressure tube (507), and the outer wall of the sliding tube (513) is provided with a second air outlet (514); the open culvert top filling device also includes: a stirring and discharging component (4), the stirring and discharging component (4) includes a stirring plate (403) rotatably arranged in the storage tank (1) for stirring the mixed soil, sand and gravel; a power transmission mechanism (3) for providing driving force to the stirring and discharging component (4) and the collecting and discharging component (5).

2. The culvert top filling device according to claim 1 is characterized by: The collecting and discharging assembly (5) further comprises a second fixing plate (516) fixedly connected to the inner wall of the telescopic plate (103); a spring plug (517) is fixedly connected to the bottom of the second fixing plate (516); the outer wall of the spring plug (517) is slidably connected to the inner wall of the telescopic plate (103); a protruding rod (518) is fixedly connected to the outer wall of the storage tank (1); a spring slider (519) is slidably connected to the inner wall of the storage tank (1); the inner wall of the spring slider (519) is slidably connected to the outer wall of the protruding rod (518); and an air outlet three (520) is provided on the inner wall of the storage tank (1); a connecting groove (515) is provided on the inner wall of the telescopic plate (103); and the spring plug (517) is slidably connected in the connecting groove (515).

3. The culvert top filling device according to claim 1 is characterized by: A material receiving plate (510) is fixedly connected to the outer wall of the material storage tank (1).

4. The culvert top filling device according to claim 2 is characterized by: The stirring and unloading assembly (4) comprises a conveyor belt (401) sleeved on the outer wall of the roller (302); a fixing rod (402) is fixedly connected to the outer wall of the drum screen (102); the outer wall of the fixing rod (402) is fixedly connected to the stirring plate (403); the outer wall of the stirring plate (403) is rotatably connected to the inner wall of the storage tank (1); and the inner wall of the storage tank (1) is rotatably connected to a rotating shaft 1 (404).

5. The culvert top filling device according to claim 4 is characterized by: The stirring material discharging assembly (4) further comprises a rotating plate (405) rotatably connected to the inner wall of the storage tank (1); the outer wall of the rotating plate (405) is fixedly connected to the outer wall of the rotating shaft (404); the outer wall of the storage tank (1) is fixedly connected to a fixing plate (406); the top of the fixing plate (406) is fixedly connected to an electric telescopic rod (407); the top of the electric telescopic rod (407) is fixedly connected to a rotating shaft (408); the bottom of the rotating plate (405) is fixedly connected to a fixing block (409); the inner wall of the fixing block (409) is rotatably connected to the outer wall of the rotating shaft (408).

6. The culvert top filling device according to claim 5 is characterized by: Also includes: A base support mechanism (2), the base support mechanism (2) comprising a base (201) fixedly connected to the bottom of a fixed bracket one (101), the top of the base (201) being fixedly connected to a fixed bracket two (202), the top of the base (201) being fixedly connected to a fixed bracket three (203), the top of the base (201) being fixedly connected to a fixed bracket four (204), and a wheel (205) being rotatably connected to an outer wall of the base (201).

7. The culvert top filling device according to claim 6 is characterized by: The power transmission mechanism (3) comprises a motor (301) fixedly connected to the top of the second fixed bracket (202); a roller (302) is fixedly connected to the outer wall of the motor (301); the outer wall of the roller (302) is rotatably connected to the inner wall of the third fixed bracket (203); a bevel gear (303) is fixedly connected to the outer wall of the roller (302); a bevel gear (304) is rotatably connected to the outer wall of the fourth fixed bracket (204); the outer wall of the bevel gear (304) is rotatably connected to the inner wall of the third fixed bracket (203); The outer wall of the bevel gear (303) is meshed and connected, the outer wall of the bevel gear (304) is sleeved with a belt (305), the outer wall of the fixed bracket (204) is rotatably connected to a gear rod (306), the outer wall of the gear rod (306) is sleeved with a belt (305), the outer wall of the drum screen (102) is fixedly connected to a gear ring (307), the outer wall of the gear ring (307) is meshed and connected with the outer wall of the gear rod (306), and the outer wall of the roller (302) is sleeved with the stirring and feeding assembly (4).

8. A method for using a device for filling soil on the top of an open culvert, using the device for filling soil on the top of an open culvert as claimed in claim 7, characterized in that: The following steps are included: S1: Start the equipment: turn on the power of the motor (301) to start the top filling device of the open culvert; S2: Filling: soil, sand and gravel filling materials are transported and filled into the feed port (104), and the motor (301) drives the drum screen (102) to rotate, so that the soil, sand and gravel filling materials entering from the feed port (104) are screened and crushed; S3: Screening and separation: When the drum screen (102) is continuously rotating, the protruding block (501) and the arc block (506) are intermittently in contact, squeezing the arc block (506) to continuously move up and down, thereby driving the piston plate (505) to move: when the piston plate (505) moves downward, negative pressure is generated inside the air pressure box (502), allowing external gas to enter the air pressure box (502) through the one-way valve (503); when the piston plate (505) moves upward, the gas in the air pressure box (502) is squeezed, allowing it to enter the air pressure pipe (507) through the one-way valve (504); when the gas passes through the air pressure pipe (507), the sliding pipe (513) is pressed to move outward, and at this time, the air outlet (512) and the air outlet (514) are offset from each other to form a closed state, and then the gas passes through the air pressure pipe (507). Finally, the gas enters the telescopic plate (103), causing the telescopic plate (103) to move downward, so that the storage tank (1) and one side of the drum screen (102) are closed, and the separated larger stones are stored inside the drum screen (102); when the drum screen (102) stops rotating, the piston plate (505) stops moving synchronously, the air pressure pipe (507) stops taking in air, and the telescopic plate (103) is acted upon by the telescopic spring (509) to move upward, causing the gas to push the sliding pipe (513) to retract. At this time, the gas outlet 1 (512) and the gas outlet 2 (514) are interconnected, and the gas in the telescopic plate (103) is discharged outward through the gas outlet 1 (512) and the gas outlet 2 (514). The telescopic plate (103) contracts, and the channel on one side of the drum screen (102) opens, so that the larger stones can be discharged outward; S4: stirring and crushing: when the drum screen (102) rotates, it synchronously drives the fixed rod (402) and the stirring plate (403) to rotate, and fully stirs and mixes the soil and gravel in the drum screen (102), so that the separated larger stones are squeezed and rubbed against each other, and the larger soil blocks and the more fragile gravel are crushed into small pieces that can pass through the drum screen (102), and are mixed with the soil and gravel outside the drum screen (102), so that the soil and gravel that finally fall to the top of the hole are in a uniformly mixed state; S5: Filling operation: driving the electric telescopic rod (407) to move downward, through the rotating shaft (408) and the fixed block (409), driving the rotating plate (405) to rotate around the rotating shaft (404) as the axis, so that the gap at the bottom of the storage tank (1) is opened, and the soil and gravel fall downward through the gap at the bottom onto the conveyor belt (401), so that it passes through the conveyor belt (401) and finally falls to the top of the open culvert, thereby realizing the filling operation on the top of the culvert.

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