A spraying and seeding device for repairing slope surface

Abstract

The application provides a kind of slope surface repair with spray seeding device, to optimize device structure to some extent, improve integration and synchronism, reduce energy consumption.The spray seeding device in the application, including rack base, mixing bin, feed pipe, spray execution mechanism, feeding rod, feeding assembly and power assembly;Mixing bin and feed pipe are installed on the rack base, the mixing bin is communicated with the feed pipe, the discharge end of the feed pipe is connected with the spray execution mechanism, the feeding assembly is connected to the feed end of the mixing bin, the power assembly is connected with the input end of the feeding rod;Feeding rod is installed in the cavity formed by mixing bin and feed pipe;Spray execution mechanism includes shell, piston, cam and transmission assembly, shell is connected with rack base, piston is arranged in shell, one end of feeding rod extends into shell and is connected with cam, transmission assembly is arranged between cam and piston, one end of transmission assembly is connected with cam, the other end of transmission assembly is connected with piston.

Description

Technical Field

[0001] This invention relates to the field of slope protection technology, and in particular to a hydroseeding device for slope surface repair. Background Technology

[0002] In various engineering projects such as road construction, water conservancy projects, and mining, numerous rock slopes are created. Hydroseeding with netting is currently one of the most widely used ecological restoration methods. Existing hydroseeding equipment typically employs independent mixing and pumping systems, with separate power sources driving material conveying and spraying actions. This results in complex equipment structures and large sizes, making transportation and deployment extremely inconvenient in narrow construction sites such as mountainous areas or steep slopes. Furthermore, because material conveying and spraying actions are independent, precise control of their synchronization is difficult, easily leading to uneven material supply and intermittent spraying, affecting the uniformity of the sprayed layer and the overall construction quality.

[0003] In addition, existing equipment has high energy consumption and poor adaptability to continuous field operations.

[0004] Therefore, there is an urgent need to provide a hydroseeding device for slope restoration to address the problems existing in the current technology to some extent. Summary of the Invention

[0005] The purpose of this invention is to provide a hydroseeding device for slope surface repair, which optimizes the structure of the hydroseeding device to a certain extent, improves integration and synchronization, and reduces energy consumption.

[0006] This invention provides a hydroseeding device for slope restoration, comprising a frame base, a mixing hopper, a conveying pipe, a hydroseeding actuator, a feeding rod, a feeding assembly, and a power assembly. The mixing hopper and the conveying pipe are both mounted on the frame base, and are interconnected. The outlet end of the conveying pipe is connected to the hydroseeding actuator. The feeding assembly is connected to the inlet end of the mixing hopper, and the power assembly is connected to the input end of the feeding rod. The feeding rod is installed within the cavity formed by the mixing hopper and the conveying pipe. The hydroseeding actuator includes a housing, a piston, a cam, and a transmission assembly. The housing is connected to the frame base, the piston is located within the housing, one end of the feeding rod extends into the housing and connects to the cam, and the transmission assembly is located between the cam and the piston. One end of the transmission assembly is connected to the cam, and the other end is connected to the piston.

[0007] The mixing hopper includes a shell and a cover, the cover being fitted over the opening of the shell; the conveying pipe is a conical conveying pipe, the large end of the conical conveying pipe being connected to one end of the shell, and the small end of the conical conveying pipe being away from the shell; the feeding rod includes a spiral mandrel and a propulsion blade, the propulsion blade being fixed on the spiral mandrel, and the propulsion blade including a first blade segment with a constant outer diameter and a second blade segment with a gradually decreasing outer diameter, the first blade segment being located inside the mixing hopper, and the second blade segment being located inside the conical conveying pipe.

[0008] Specifically, the transmission assembly includes a first seat, a second seat, a screw, an adjusting nut, and an elastic element; the screw passes through the first seat and the second seat, the adjusting nut is installed at one end of the screw and axially limits the first seat or the second seat, and the elastic element is sleeved on the screw and clamped between the first seat and the second seat; the first seat is connected to the piston, and the second seat is connected to the cam.

[0009] Furthermore, the cam is a first cam, and the circumferential side of the first cam is provided with an annular limiting groove or a curved limiting groove; the second seat is provided with a protruding post at one end away from the first seat, and the protruding post extends into the limiting groove and slides in cooperation with the limiting groove.

[0010] Furthermore, the cam is a second cam; the spraying actuator also includes a guide rod, one end of which is connected to the piston, and the other end of which is connected to the housing; the second cam abuts against the guide rod, and when the second cam rotates, it pushes the guide rod and drives the piston to reciprocate within the housing.

[0011] The outer shell is further provided with a sealing sleeve, and the end face of the sealing sleeve has a first connecting port and a second connecting port, which are arranged opposite to each other; both the first connecting port and the second connecting port are provided with valve flaps, which close the first connecting port and the second connecting port when the valve flaps are arranged horizontally, and open the first connecting port and the second connecting port when the valve flaps are flipped upward.

[0012] Specifically, the spraying actuator further includes a discharge assembly, which is installed at the port of the housing. The discharge assembly includes a cylinder, a sealing cap, a valve core, a stand, a threaded sleeve, a retaining ring, and a first spring. The cylinder is fixed at the port of the housing and communicates with the interior of the housing. The sealing cap covers the port of the cylinder. The valve core is located at the lower port of the cylinder and has a cylindrical portion that passes through the sealing cap and extends outward. The stand is fixed to the sealing cap. The threaded sleeve is installed on the stand and sleeved on the outside of the cylindrical portion. The retaining ring is sleeved on the cylindrical portion. The first spring is clamped between the retaining ring and the threaded sleeve and sleeved on the outside of the cylindrical portion. The valve core closes the lower port of the cylinder under the elastic force of the first spring, and opens the lower port when the valve core moves upward against the elastic force of the first spring. A discharge nozzle is formed at the outlet end of the cylinder, and the discharge nozzle communicates with the interior of the cylinder.

[0013] Furthermore, one end of the housing is provided with a side plate, and the side plate is provided with a connecting seat, which is rotatably engaged with the end of the spiral mandrel; the feeding assembly is installed on the outside of the side plate, and the feeding assembly includes a feeding cylinder, the interior of which is in communication with the interior of the housing; the outer wall of the feeding cylinder is provided with at least two feeding ports and a liquid inlet pipe.

[0014] Furthermore, a top cover is fitted over the port of the feed cylinder, and a rotating shaft is threaded through the top cover and extends into the interior of the feed cylinder; multiple plates and curved rods are fixed on the rotating shaft, and a helical rod is connected to the end of each plate; the plates are arranged opposite to the liquid inlet pipe, and the water flow injected by the liquid inlet pipe impacts the plates to drive the rotating shaft to rotate; the end of the rotating shaft extending out of the top cover is connected to an external motor.

[0015] Furthermore, the transmission assembly also includes a telescopic sleeve, which is sleeved on the outside of the elastic element. The two ends of the telescopic sleeve are fixedly connected to the first seat and the second seat, respectively. The elastic element is a compression spring. When the cam pushes the piston, the compression spring is compressed and absorbs energy. When the cam returns, the compression spring releases energy, extends, and drives the piston to reset.

[0016] Compared with existing technologies, the hydroseeding device for slope restoration provided by this invention has the following advantages: The hydroseeding device for slope restoration provided by this invention includes a frame base, a mixing bin, a conveying pipe, a hydroseeding actuator, a feeding rod, a feeding assembly, and a power assembly. The mixing bin and the conveying pipe are both mounted on the frame base, and are interconnected. The outlet end of the conveying pipe is connected to the hydroseeding actuator. The feeding assembly is connected to the inlet end of the mixing bin, and the power assembly is connected to the input end of the feeding rod. The feeding rod is installed within the cavity formed by the mixing bin and the conveying pipe. The hydroseeding actuator includes a housing, a piston, a cam, and a transmission assembly. The housing is connected to the frame base, the piston is located inside the housing, one end of the feeding rod extends into the housing and connects to the cam, and the transmission assembly is located between the cam and the piston. One end of the transmission assembly is connected to the cam, and the other end is connected to the piston.

[0017] Therefore, this analysis shows that the frame base in this application is the mounting base for the entire hydroseeding device used for slope restoration, serving to support and secure all other components. In practical applications, the frame base can be a frame structure welded from structural steel or a plate shell structure formed by bending steel plates. Its bottom surface has mounting holes, allowing it to be fixed to the mobile vehicle body via bolts, welding, or quick-release clips. The mobile vehicle body can be a wheeled chassis, a tracked chassis, or a tractor-mounted form, facilitating flexible relocation and positioning in mountainous areas, slopes, or narrow construction sites.

[0018] Both the mixing hopper and the conveying pipe are fixedly mounted on the frame base. The mixing hopper and the conveying pipe are interconnected. The mixing hopper receives various materials from the feeding assembly, such as soil, organic matter, water-retaining agents, adhesives, grass seeds, and fertilizers, and performs preliminary mixing and temporary storage of these materials. The conveying pipe serves as the channel for transporting materials from the mixing hopper to the spraying actuator. The discharge end of the conveying pipe is connected to the spraying actuator, and the feeding assembly is connected to the inlet end of the mixing hopper to supply materials and water to the mixing hopper.

[0019] The power unit is connected to the input end of the feeding rod. The power unit typically includes a drive motor and a reducer. The drive motor converts electrical energy into rotational mechanical energy, while the reducer converts the motor's high-speed, low-torque output into a low-speed, high-torque output to meet the working requirements of the feeding rod. The feeding rod is installed within the cavity formed by the mixing bin and the conveying pipe. Driven by the power unit, the feeding rod rotates, mixing and agitating the material in the mixing bin and propelling it forward along the conveying pipe.

[0020] The spraying actuator includes a housing, piston, cam, and transmission components. The housing is connected to the frame base and provides installation space and protection for the internal components of the spraying actuator. The piston is located inside the housing and has a cylindrical structure. Its outer wall slides against the inner wall of the housing or the internal guide structure, allowing it to reciprocate linearly within the housing under power drive, pressurizing and sucking in the material.

[0021] One end of the feeding rod extends into the housing and connects to the cam. The cam is fixedly mounted on the end of the feeding rod and rotates synchronously with it. A transmission assembly is located between the cam and the piston. One end of the transmission assembly is connected to the cam, and the other end is connected to the piston. When the cam rotates, the rotational motion is converted into the reciprocating linear motion of the piston through the transmission assembly. In practical applications, the cam can be of different forms, such as a disc cam, cylindrical cam, or end-face cam. The transmission assembly is configured accordingly, such as a linkage mechanism, a rocker arm mechanism, or a push rod mechanism, depending on the form of the cam. With this structure, when the power assembly drives the feeding rod to rotate, the feeding rod propels the material forward while simultaneously driving the piston to reciprocate within the housing via the cam and transmission assembly. This achieves mechanical linkage between the material conveying and spraying actions, eliminating the need for an additional independent power source for the spraying process. This integrated power transmission design significantly simplifies the equipment structure, reduces overall energy consumption, eliminates synchronization errors caused by separate drives, and ensures the synchronicity and stability of the material propulsion and spraying actions.

[0022] In actual construction, after the operator starts the power unit, the feeding unit continuously feeds material into the mixing bin. The feeding rod simultaneously completes the two tasks of material propulsion and cam drive. The piston reciprocates at a frequency that matches the rotation speed of the feeding rod. The material is continuously propelled, pressurized and sprayed onto the slope. The entire working process does not require manual intervention in the spraying rhythm, making it particularly suitable for continuous spraying operations in complex outdoor environments.

[0023] In practical applications, besides using an electric motor with a reducer, the power unit can also employ a hydraulic motor paired with a hydraulic pump station. Hydraulic motors are characterized by their small size, high torque, and strong overload capacity, making them particularly suitable for mountainous construction environments. Alternatively, a diesel engine can be used for direct drive, suitable for field operations lacking power supply. The drive motor is preferably a variable frequency speed control motor, allowing operators to adjust the motor's output speed according to the actual slope conditions, thereby synchronously adjusting the material propulsion speed and spraying frequency, achieving overall control of the spraying operation speed. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of the hydroseeding device for slope restoration provided in an embodiment of the present invention; Figure 2This is a schematic diagram of the internal structure of the hydroseeding device for slope restoration provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the hydroseeding actuator in the hydroseeding device for slope restoration provided in an embodiment of the present invention; Figure 4 A schematic diagram of the internal structure of the hydroseeding actuator in the hydroseeding device for slope restoration provided in an embodiment of the present invention, from a first-view perspective. Figure 5 This is a side view of the hydroseeding actuator in the hydroseeding device for slope restoration provided in an embodiment of the present invention; Figure 6 for Figure 5 A schematic diagram of the AA cross-sectional structure; Figure 7 A schematic diagram of the internal structure of the hydroseeding actuator in the hydroseeding device for slope restoration provided in an embodiment of the present invention, from a second perspective. Figure 8 This is a schematic diagram of the piston installation structure in the hydroseeding device for slope repair provided in an embodiment of the present invention; Figure 9 This is a schematic diagram of the piston mounting side structure in the hydroseeding device for slope repair provided in an embodiment of the present invention; Figure 10 for Figure 9 A schematic diagram of the BB cross-sectional structure; Figure 11 This is a schematic diagram of the piston structure in the hydroseeding device for slope restoration provided in an embodiment of the present invention; Figure 12 This is a schematic diagram of the material discharge component structure in the hydroseeding device for slope repair provided in an embodiment of the present invention; Figure 13 This is a first-view structural schematic diagram of the feeding assembly in the hydroseeding device for slope restoration provided in an embodiment of the present invention. Figure 14 This is a second-view structural diagram of the feeding assembly in the hydroseeding device for slope restoration provided in an embodiment of the present invention. Figure 15 This is a side view of the feeding assembly in the hydroseeding device for slope restoration provided in an embodiment of the present invention; Figure 16 for Figure 15 Schematic diagram of CC cross-section structure; Figure 17 This is a schematic diagram of the rotating shaft installation structure in the hydroseeding device for slope restoration provided in an embodiment of the present invention; Figure 18 This is a schematic diagram of the connecting rod structure in the hydroseeding device for slope restoration provided in an embodiment of the present invention; Figure 19This is a schematic diagram of the cross-sectional structure of the connecting rod in the hydroseeding device for slope restoration provided in an embodiment of the present invention.

[0026] In the diagram: 1-Frame base; 2-Mixing hopper; 201-Shell; 202-Cover; 203-Side plate; 204-Connecting seat; 3-Conical conveying pipe; 4-Spraying actuator; 401-Shell; 402-Flange end cover; 403-Discharge assembly; 4031-Cylinder; 4032-Sealing cover; 4033-Upright; 4034-Threaded sleeve; 4035-Valve core; 4036-First spring; 4037-Retaining ring; 4038-Discharge nozzle; 404-Piston; 4041-Sealing sleeve; 4042-First connecting port; 4043-Valve disc; 4044-Second connecting port; 405-Transmission assembly; 405 1-First seat; 4052-Second seat; 4053-Screw; 4054-Adjusting nut; 4055-Elastic element; 4056-Telescopic sleeve; 406-Cam; 4061-First cam; 4062-Second cam; 407-Guide rod; 4071-Sleeve rod; 4072-Long rod; 4073-Second spring; 5-Feeding assembly; 501-Feeding cylinder; 502-Feeding port; 503-Liquid inlet pipe; 504-Top cover; 505-Rotating shaft; 506-Plate; 507-Screw rod; 508-Curved rod; 6-Power assembly; 7-Feeding rod; 701-Screw mandrel; 702-Propeller blade. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0028] In the description of the embodiments of this application, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but can be slightly tilted.

[0030] In the description of the embodiments of this application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0031] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.

[0032] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” may be used herein to describe the relationship between one element and another as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also the different orientations of the device during use or operation.

[0033] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0034] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.

[0035] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have various constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis that they can be implemented by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0036] like Figures 1-19 As shown, this invention provides a hydroseeding device for slope restoration, including a frame base 1, a mixing bin 2, a conveying pipe, a hydroseeding actuator 4, a feeding rod 7, a feeding assembly 5, and a power assembly 6. The mixing bin 2 and the conveying pipe are both mounted on the frame base 1, and the mixing bin 2 and the conveying pipe are interconnected. The outlet end of the conveying pipe is connected to the hydroseeding actuator 4. The feeding assembly 5 is connected to the inlet end of the mixing bin 2, and the power assembly 6 is connected to the input end of the feeding rod 7. The feeding rod 7 is installed between the mixing bin 2 and the conveying pipe. The cavity formed by the material pipe; the spraying actuator 4 includes a housing 401, a piston 404, a cam 406 and a transmission assembly 405. The housing 401 is connected to the frame base 1. The piston 404 is located inside the housing 401. One end of the feeding rod 7 extends into the housing 401 and is connected to the cam 406. The transmission assembly 405 is located between the cam 406 and the piston 404. One end of the transmission assembly 405 is connected to the cam 406 and the other end of the transmission assembly 405 is connected to the piston 404.

[0037] The hydroseeding device for slope restoration provided by this invention includes a frame base 1, a mixing bin 2, a conveying pipe, a hydroseeding actuator 4, a feeding rod 7, a feeding assembly 5, and a power assembly 6. The mixing bin 2 and the conveying pipe are both mounted on the frame base 1, and are interconnected. The outlet end of the conveying pipe is connected to the hydroseeding actuator 4. The feeding assembly 5 is connected to the inlet end of the mixing bin 2, and the power assembly 6 is connected to the input end of the feeding rod 7. The feeding rod 7 is mounted on both the mixing bin 2 and the conveying pipe. The cavity formed by the spraying actuator 4 includes a housing 401, a piston 404, a cam 406, and a transmission assembly 405. The housing 401 is connected to the frame base 1. The piston 404 is located inside the housing 401. One end of the feeding rod 7 extends into the housing 401 and is connected to the cam 406. The transmission assembly 405 is located between the cam 406 and the piston 404. One end of the transmission assembly 405 is connected to the cam 406, and the other end of the transmission assembly 405 is connected to the piston 404.

[0038] Analysis reveals that the frame base 1 in this application serves as the mounting base for the entire hydroseeding device used for slope restoration, supporting and securing all other components. In practical applications, the frame base 1 can be a frame structure welded from structural steel or a plate shell structure formed by bending steel plates. Its bottom surface has mounting holes, allowing it to be fixed to the mobile vehicle body via bolts, welding, or quick-release clips. The mobile vehicle body can be a wheeled chassis, a tracked chassis, or a tractor-mounted form, facilitating flexible relocation and positioning in mountainous areas, slopes, or narrow construction sites.

[0039] Both the mixing bin 2 and the conveying pipe are fixedly installed on the frame base 1. The mixing bin 2 and the conveying pipe are interconnected. The mixing bin 2 is used to receive various materials from the feeding assembly 5, such as soil, organic matter, water-retaining agent, adhesive, grass seed, fertilizer, etc., and to perform preliminary mixing and temporary storage of these materials. The conveying pipe serves as the channel for conveying materials from the mixing bin 2 to the spraying actuator 4. The discharge end of the conveying pipe is connected to the spraying actuator 4, and the feeding assembly 5 is connected to the inlet end of the mixing bin 2 to supply materials and water into the mixing bin 2.

[0040] The power assembly 6 is connected to the input end of the feeding rod 7. The power assembly 6 typically includes a drive motor and a reducer. The drive motor converts electrical energy into rotational mechanical energy, while the reducer converts the high-speed, low-torque output of the motor into a low-speed, high-torque output to meet the working requirements of the feeding rod 7. The feeding rod 7 is installed in the cavity formed by the mixing bin 2 and the conveying pipe. Driven by the power assembly 6, the feeding rod 7 rotates, stirring and mixing the material in the mixing bin 2 and propelling it forward along the conveying pipe.

[0041] The spraying actuator 4 includes a housing 401, a piston 404, a cam 406, and a transmission assembly 405. The housing 401 is connected to the frame base 1. The housing 401 provides installation space and protection for the internal components of the spraying actuator 4. The piston 404 is located inside the housing 401. The piston 404 has a columnar structure, and its outer wall slides in fit with the inner wall of the housing 401 or the internal guide structure. It can reciprocate linearly within the housing 401 under power drive to pressurize and suck up the material.

[0042] One end of the feeding rod 7 extends into the housing 401 and connects to the cam 406. The cam 406 is fixedly installed at the end of the feeding rod 7 and rotates synchronously with the feeding rod 7. A transmission assembly 405 is disposed between the cam 406 and the piston 404. One end of the transmission assembly 405 is connected to the cam 406, and the other end is connected to the piston 404. When the cam 406 rotates, the rotational motion is converted into the reciprocating linear motion of the piston 404 through the transmission assembly 405. In practical applications, the cam 406 can be in different forms such as a disc cam, cylindrical cam, or end-face cam. The transmission assembly 405 is configured accordingly, such as a linkage mechanism, a rocker arm mechanism, or a push rod mechanism, depending on the form of the cam 406. With this structure, when the power assembly 6 drives the feeding rod 7 to rotate, the feeding rod 7, while propelling the material forward, directly drives the piston 404 to reciprocate within the housing 401 through the cam 406 and the transmission assembly 405, achieving mechanical linkage between the material conveying action and the spraying action, eliminating the need for an additional independent power source for the spraying process. This integrated power transmission design significantly simplifies the equipment structure, reduces overall energy consumption, eliminates synchronization errors caused by separate drives, and ensures the synchronicity and stability of material propulsion and ejection.

[0043] In actual construction, after the operator starts the power component 6, the feeding component 5 continuously feeds the material into the mixing bin 2. The feeding rod 7 simultaneously completes two tasks: material propulsion and cam 406 drive. The piston 404 reciprocates at a frequency that matches the rotation speed of the feeding rod 7. The material is continuously propelled, pressurized and sprayed onto the slope. The entire working process does not require manual intervention in the spraying rhythm, making it particularly suitable for continuous spraying operations in complex outdoor environments.

[0044] In practical applications, in addition to using an electric motor and reducer, power component 6 can also employ a hydraulic motor in conjunction with a hydraulic pump station. Hydraulic motors are characterized by their small size, high torque, and strong overload capacity, making them particularly suitable for mountainous construction environments. Alternatively, a direct-drive diesel engine can be used, suitable for field operations lacking power supply. The drive motor is preferably a variable frequency speed control motor, allowing operators to adjust the motor's output speed according to the actual slope conditions, thereby synchronously adjusting the material propulsion speed and spraying frequency, achieving overall control of the spraying operation speed.

[0045] Optionally, such as Figure 2As shown, the mixing bin 2 includes a shell 201 and a cover 202, with the cover 202 covering the opening of the shell 201; the conveying pipe is a conical conveying pipe 3, with the large end of the conical conveying pipe 3 connected to one end of the shell 201 and the small end of the conical conveying pipe 3 away from the shell 201; the feeding rod 7 includes a spiral mandrel 701 and a propulsion blade 702, with the propulsion blade 702 fixed on the spiral mandrel 701, and the propulsion blade 702 includes a first blade segment with a constant outer diameter and a second blade segment with a gradually decreasing outer diameter, the first blade segment being located inside the mixing bin 2 and the second blade segment being located inside the conical conveying pipe 3.

[0046] In this application, the shell 201 is a U-shaped shell, and the cover 202 is fastened to the opening of the shell 201. The shell 201 and the cover 202 together form a closed cavity. The conveying pipe is a tapered conveying pipe 3. The large end of the tapered conveying pipe 3 is connected to one end of the shell 201, and the small end of the tapered conveying pipe 3 is away from the shell 201. That is, the tapered conveying pipe 3 gradually narrows from the large end to the small end along the material's forward direction. When the material flows through the tapered conveying pipe 3, as the flow cross-section gradually decreases, the extrusion pressure on the material gradually increases, thereby being gradually compressed and compacted to form a continuous and dense material flow. The inner wall of the tapered conveying pipe 3 is provided with a wear-resistant lining.

[0047] The feeding rod 7 includes a spiral mandrel 701 and a propulsion blade 702, with the propulsion blade 702 fixed to the spiral mandrel 701. The propulsion blade 702 is fixed to the outer circumference of the spiral mandrel 701 by welding. One end of the spiral mandrel 701 is the input end, connected to the output shaft of the power assembly 6, and the other end extends into the housing 401 and connects to the cam 406. The propulsion blade 702 includes a first blade segment with a constant outer diameter and a second blade segment with a gradually decreasing outer diameter. The first blade segment is located inside the mixing chamber 2, and its outer diameter matches the inner diameter of the mixing chamber 2. It is used to push the material in the mixing chamber 2 towards the conical conveying pipe 3 during rotation. Simultaneously, the rotational motion of the propulsion blade 702 agitates the material, ensuring thorough mixing of various solid materials and water to form a uniform slurry. The second blade segment is located inside the conical conveying pipe 3, and its outer diameter gradually decreases with the change in the inner diameter of the conical conveying pipe 3, maintaining a gap with the inner wall of the conical conveying pipe 3.

[0048] As the outer diameter of the second blade segment gradually decreases, the material is continuously compressed by the propulsion blade 702 within the conical conveying pipe 3, further increasing the material's density. When the feeding rod 7 rotates under the drive of the power component 6, the first blade segment stirs and mixes the material in the mixing bin 2 and pushes it towards the conical conveying pipe 3, while the second blade segment gradually compresses and compacts the material within the conical conveying pipe 3, ensuring that the material forms a dense flow before entering the spraying actuator 4. The propulsion blade 702 has a gradually decreasing pitch design, with the pitch gradually decreasing from the mixing bin 2 to the conical conveying pipe 3. Preferably, the spiral mandrel 701 is a hollow tubular structure, and a drain port is provided at the bottom of the housing 201. A drain valve is installed at the drain port, allowing wastewater to be discharged after cleaning the internal cavity by opening the drain valve.

[0049] Optionally, such as Figure 18 Combination Figure 19 As shown, the transmission assembly 405 includes a first seat 4051, a second seat 4052, a screw 4053, an adjusting nut 4054, and an elastic element 4055; the screw 4053 passes through the first seat 4051 and the second seat 4052, the adjusting nut 4054 is installed at one end of the screw 4053 and axially limits the first seat 4051 or the second seat 4052, and the elastic element 4055 is sleeved on the screw 4053 and clamped between the first seat 4051 and the second seat 4052; the first seat 4051 is connected to the piston 404, and the second seat 4052 is connected to the cam 406.

[0050] A screw 4053 passes through the first seat 4051 and the second seat 4052. An adjusting nut 4054 is installed at one end of the screw 4053 and axially limits either the first seat 4051 or the second seat 4052. An elastic element 4055 is sleeved on the screw 4053 and clamped between the first seat 4051 and the second seat 4052. The first seat 4051 is connected to the piston 404, and the second seat 4052 is connected to the cam 406. When the cam 406 rotates, it pushes the elastic element 4055 through the second seat 4052. The elastic element 4055 transmits the motion to the first seat 4051, thereby driving the piston 404 to reciprocate within the housing 401.

[0051] The elastic element 4055 makes the power transmission between the cam 406 and the piston 404 no longer a rigid connection, but has a certain elastic buffer, thereby absorbing the impact and vibration generated during the rotation of the cam 406.

[0052] The adjusting nut 4054 serves not only as a limit switch but, more importantly, as a means to adjust the initial preload of the elastic element 4055. Specifically, when the operator rotates the adjusting nut 4054 in the tightening direction, the axial distance between the first seat 4051 and the second seat 4052 decreases, the elastic element 4055 is further compressed, the initial preload increases, the overall stiffness of the transmission assembly 405 increases, and the piston 404 needs to overcome greater elastic resistance during movement, thereby increasing the spraying pressure. Conversely, when the operator rotates the adjusting nut 4054 in the loosening direction, the axial distance between the first seat 4051 and the second seat 4052 increases, the initial preload of the elastic element 4055 decreases, the overall stiffness of the transmission assembly 405 decreases, the movement resistance of the piston 404 decreases, and the spraying pressure decreases accordingly. Through the flexible adjustment of the adjusting nut 4054, the operator can adjust the spraying pressure according to actual construction needs, achieving flexible control of the spraying pressure. The first seat 4051 is connected to the piston 404 at one end with a U-shaped fork. The two fork arms of the U-shaped fork are coaxially provided with hinge holes. The end of the piston 404 is embedded in the U-shaped fork and hinged by a pin.

[0053] Of course, the second seat 4052 also has a U-shaped structure, so that it can cooperate with the cam 406 to prevent axial movement between the second seat 4052 and the cam 406.

[0054] Optionally, such as Figure 3 Combination Figure 4 As shown, the cam 406 in this application is the first cam 4061, and the circumferential side of the first cam 4061 is provided with an annular limiting groove or a curved limiting groove; the second seat 4052 is provided with a protruding post at one end away from the first seat 4051, and the protruding post extends into the limiting groove and slides in cooperation with the limiting groove.

[0055] The annular limiting groove is a closed annular groove formed on the circumferential side of the cam 406 around the axis of the first cam 4061. The distance between the bottom of the groove and the rotation axis of the first cam 4061 varies with the rotation angle of the cam 406. A protrusion is provided at the end of the second seat 4052 away from the first seat 4051. The protrusion extends into the limiting groove and slides within it. The end of the protrusion is inserted into the limiting groove and can slide freely within it but cannot be dislodged. When the first cam 4061 rotates with the feed rod 7, the limiting groove rotates synchronously with the first cam 4061, and the protrusion is confined within the limiting groove. Because the radial depth of the limiting groove varies with the rotation angle, the protrusion reciprocates along the radial direction of the first cam 4061 under the constraint of the limiting groove, thereby driving the second seat 4052 and the entire transmission assembly 405 to reciprocate, which in turn drives the piston 404 to reciprocate within the housing 401.

[0056] The rotational motion of the first cam 4061 is stably converted into the linear reciprocating motion of the piston 404 through the engagement of the limiting groove and the protrusion. The design of the annular limiting groove ensures that the protrusion is constrained within the limiting groove at any angular position and will not come out. The contour curve of the curved limiting groove can be designed according to the required piston 404 motion law.

[0057] Optionally, such as Figures 7-10 As shown, the cam 406 in this application is the second cam 4062; the spraying actuator 4 also includes a guide rod 407, one end of which is connected to the piston 404, and the other end of which is connected to the housing 401; the second cam 4062 abuts against the guide rod 407, and when the second cam 4062 rotates, it pushes the guide rod 407 and drives the piston 404 to reciprocate within the housing 401.

[0058] In another embodiment of the cam 406 in this application, the second cam 4062 is also fixedly mounted on the end of the feeding rod 7 and rotates synchronously with the feeding rod 7. The spraying actuator 4 also includes a guide rod 407, one end of which is connected to the piston 404, and the other end of which is connected to the housing 401. The guide rod 407 is arranged along the movement direction of the piston 404, guiding and constraining the movement of the piston 404. The second cam 4062 abuts against the guide rod 407, and the cam profile of the second cam 4062 contacts the middle or end of the guide rod 407. When the second cam 4062 rotates with the feeding rod 7, the cam profile of the second cam 4062 pushes the guide rod 407 to move towards the discharge port of the housing 401, and the guide rod 407 drives the piston 404 to move synchronously in that direction, pressurizing the material inside the housing 401.

[0059] When the second cam 4062 continues to rotate until the concave section of the cam profile contacts the guide rod 407, the guide rod 407 moves away from the discharge port of the housing 401 under the action of the restoring force, driving the piston 404 to retract synchronously, completing the material suction process. The second cam 4062 directly pushes the piston 404 to move through the guide rod 407, resulting in a simple structure. A roller is provided at the end of the guide rod 407 that contacts the second cam 4062, and the roller makes rolling contact with the cam profile of the second cam 4062.

[0060] The guide rod 407 in this application includes a sleeve rod 4071, a long rod 4072, and a second spring 4073. The sleeve rod 4071 passes through the piston 404 and is clamped and fixed to the piston 404 by two nuts installed on the sleeve rod 4071. One end of the sleeve rod 4071 has a deep groove that extends along the axial direction of the sleeve rod 4071. One end of the long rod 4072 is slidably inserted into the deep groove, and the other end of the long rod 4072 is fixed to the cylinder 4031 or flange end cap 402 of the discharge assembly 403. The second spring 4073 is installed in the deep groove, with one end of the second spring 4073 abutting against the bottom of the deep groove and the other end of the second spring 4073 abutting against the end of the long rod 4072. When the second cam 4062 pushes the sleeve rod 4071 to move closer to the discharge assembly 403, the sleeve rod 4071 drives the piston 404 forward to apply pressure. At the same time, the long rod 4072 slides relative to the sleeve rod 4071 towards the bottom of the deep groove, compressing the second spring 4073, which stores elastic potential energy.

[0061] When the thrust of the second cam 4062 on the sleeve rod 4071 disappears or decreases, the second spring 4073 extends and pushes the sleeve rod 4071 to move away from the discharge assembly 403. The sleeve rod 4071 then drives the piston 404 to retract and reset. The guide rod 407 not only serves as a guide for the piston 404 but also provides a reset force through the built-in second spring 4073.

[0062] Optionally, such as Figure 5 Combination Figure 6 The outer casing 401 is also provided with a sealing sleeve 4041. The end face of the sealing sleeve 4041 is provided with a first connecting port 4042 and a second connecting port 4044. The first connecting port 4042 and the second connecting port 4044 are arranged opposite to each other. A valve disc 4043 is provided in both the first connecting port 4042 and the second connecting port 4044. When the valve disc 4043 is arranged horizontally, it closes the first connecting port 4042 and the second connecting port 4044. When the valve disc 4043 is flipped upward, it opens the first connecting port 4042 and the second connecting port 4044.

[0063] The end face of the sealing sleeve 4041 has a first connecting port 4042 and a second connecting port 4044, which are arranged opposite to each other. A valve disc 4043 is provided in both the first connecting port 4042 and the second connecting port 4044, and one end of the valve disc 4043 is hinged to the end face of the sealing sleeve 4041 or the edge of the connecting port.

[0064] When valve disc 4043 is arranged horizontally, it closes the communication port; when valve disc 4043 flips upward, it opens the communication port. The sealing sleeve 4041, the communication port, and valve disc 4043 together constitute a one-way valve system. When piston 404 moves towards the sealing sleeve 4041, the volume of the cavity between piston 404 and sealing sleeve 4041 increases, generating negative pressure. This negative pressure acts on the lower surface of valve disc 4043. When the negative pressure is large enough, valve disc 4043 flips upward under the action of pressure difference, opening the communication port. The material in mixing bin 2 and conical conveying pipe 3 is sucked into the outer shell 401 and passes through the communication port into the cavity between piston 404 and sealing sleeve 4041.

[0065] When piston 404 moves away from sealing sleeve 4041, the volume of the cavity between piston 404 and sealing sleeve 4041 decreases, the internal pressure increases, and the material is pressurized. Simultaneously, this pressure acts on the upper surface of valve disc 4043, pressing it downwards and ensuring its horizontal arrangement and sealing of the connection port. This prevents high-pressure material from flowing back into the conical conveying pipe 3 and mixing bin 2. The resulting one-way valve structure ensures that the material is always conveyed in a single direction during the reciprocating motion of piston 404, effectively preventing material backflow.

[0066] Of course, the hinge end of the valve disc 4043 in this application is provided with a return spring, and the return spring can be a torsion spring. A sealing element is provided between the sealing sleeve 4041 and the inner wall of the outer shell 401, so as to a certain extent, the gap between the outer shell 401 and the sealing sleeve 4041 will not allow material to pass through. On the one hand, it ensures the function of the one-way valve, and on the other hand, it can also prevent material from getting stuck in the gap and affecting the movement of the piston 404.

[0067] Optionally, such as Figures 1-6 Combination Figure 12As shown, the spraying actuator 4 also includes a flange end cover 402 and a discharge assembly 403. The discharge assembly 403 is installed at the port of the housing 401. The discharge assembly 403 includes a cylinder 4031, a sealing cover 4032, a valve core 4035, a stand 4033, a threaded sleeve 4034, a retaining ring 4037, and a first spring 4036. The cylinder 4031 is fixed to the flange end cover 402 and communicates with the interior of the housing 401. The sealing cover 4032 covers the port of the cylinder 4031. The valve core 4035 is located at the lower port of the cylinder 4031. The valve core 4035 has a cylindrical portion that passes through the sealing cover 4032 and... Extending outward; the stand 4033 is fixed on the sealing cover 4032, the threaded sleeve 4034 is installed on the stand 4033 and sleeved on the outside of the column part, the retaining ring 4037 is sleeved on the column part, the first spring 4036 is clamped between the retaining ring 4037 and the threaded sleeve 4034 and sleeved on the outside of the column part; the valve core 4035 closes the lower port of the cylinder 4031 under the elastic force of the first spring 4036, and opens the lower port when the valve core 4035 moves upward against the elastic force of the first spring 4036; the outlet end of the cylinder 4031 forms a discharge nozzle 4038, and the discharge nozzle 4038 communicates with the interior of the cylinder 4031.

[0068] A flange end cap 402 is fixed to the port of the outer casing 401, and a discharge assembly 403 is installed on the flange end cap 402. A cylinder 4031 is fixed to the flange end cap 402 and communicates with the interior of the outer casing 401. A sealing cap 4032 covers the port of the cylinder 4031. A valve core 4035 is located at the lower port of the cylinder 4031. The valve core 4035 has a cylindrical portion that passes through the sealing cap 4032 and extends outward. A support 4033 is fixed to the sealing cap 4032. A threaded sleeve 4034 is installed on the support 4033 and sleeved on the outside of the cylindrical portion. The threaded sleeve 4034 and the support 4033 are connected by a threaded engagement. When the threaded sleeve 4034 is rotated, the threaded sleeve 4034 can move axially relative to the support 4033 along the cylindrical portion.

[0069] A retaining ring 4037 is sleeved on the column part and is fixedly connected to the column part. A first spring 4036 is clamped between the retaining ring 4037 and the threaded sleeve 4034 and sleeved on the outside of the column part. The valve core 4035 closes the lower port of the cylinder 4031 under the elastic force of the first spring 4036. That is, the first spring 4036 applies a downward thrust to the valve core 4035 through the retaining ring 4037, so that the sealing surface of the valve core 4035 is tightly fitted with the sealing surface of the lower port of the cylinder 4031.

[0070] When the material pressure inside the housing 401 is sufficiently high, the material pushes the valve core 4035 upward against the elastic force of the first spring 4036. The upward movement of the valve core 4035 compresses the first spring 4036, opening the lower port of the cylinder 4031, and allowing the material to be discharged from the lower port. The discharge assembly 403 functions as a pressure control valve; the valve core 4035 will only open when the material pressure inside the housing 401 exceeds the preload of the first spring 4036.

[0071] By rotating the threaded sleeve 4034 to change its extension length, the pre-compression of the first spring 4036 can be adjusted, thereby changing the threshold pressure at which the valve core 4035 opens and achieving precise regulation of the spraying pressure. A discharge nozzle 4038 is installed at the outlet end of the cylinder 4031, and the discharge nozzle 4038 is connected to the interior of the cylinder 4031. The internal flow channel of the discharge nozzle 4038 is a circular tapering structure or a fan-shaped slit structure.

[0072] Optionally, such as Figure 2 Combination Figure 13 and Figure 14 As shown, one end of the housing 201 in this application is provided with a side plate 203, and a connecting seat 204 is provided on the side plate 203. The connecting seat 204 is rotatably engaged with the end of the spiral mandrel 701. The feeding assembly 5 is installed on the outside of the side plate 203. The feeding assembly 5 includes a feeding cylinder 501, and the interior of the feeding cylinder 501 is in communication with the interior of the housing 201. The outer wall of the feeding cylinder 501 is provided with at least two feeding ports 502 and a liquid inlet pipe 503.

[0073] The connecting seat 204 in this application is a bearing seat structure, in which a rolling bearing is installed. The end of the spiral mandrel 701 is installed in the inner ring of the bearing, so that the spiral mandrel 701 can rotate freely under the support of the connecting seat 204. The feeding assembly 5 is installed on the outside of the side plate 203. The feeding assembly 5 includes a feed cylinder 501, and the interior of the feed cylinder 501 is in communication with the interior of the housing 201.

[0074] The outer wall of the feeding cylinder 501 is provided with at least two feed inlets 502 and one liquid inlet pipe 503. By setting at least two independent feed inlets 502, the dry powder substrate, grass seeds, and water can be added in stages and categories. One feed inlet 502 is used to feed the dry powder substrate, the other feed inlet 502 is used to feed the grass seeds, and the liquid inlet pipe 503 is used to inject water. The dry powder substrate and grass seeds enter the feeding cylinder 501 through different feed inlets 502. Under the action of water flow, they are initially mixed and then fall into the mixing bin 2. This avoids the grass seeds and substrate being directly impacted and sheared by the high-speed rotating propulsion blades 702 before entering the mixing bin 2, effectively protecting the structural integrity and biological activity of the grass seeds.

[0075] Optionally, such as Figures 13-17As shown, the feed cylinder 501 in this application has an upper cover 504 covering its port. A rotating shaft 505 passes through the upper cover 504 and extends into the feed cylinder 501. Multiple plates 506 and curved rods 508 are fixed on the rotating shaft 505. Each plate 506 has a screw rod 507 connected to its end. The plates 506 are arranged opposite to the liquid inlet pipe 503. The water flow injected by the liquid inlet pipe 503 impacts the plates 506 to drive the rotating shaft 505 to rotate. The end of the rotating shaft 505 extending out of the upper cover 504 is connected to an external motor.

[0076] In this application, the rotating shaft 505 is mounted on the upper cover 504 via bearings, and the rotating shaft 505 extends into the interior of the feed cylinder 501. Multiple plates 506 and curved rods 508 are fixed on the rotating shaft 505. The plates 506 extend radially outward along the rotating shaft 505, and the curved rods 508 are curved stirring rods.

[0077] Each plate 506 has a screw rod 507 connected to its end, extending along the axis of the rotating shaft 505. The plate 506 is arranged opposite to the inlet pipe 503, and the water flow injected through the inlet pipe 503 directly impacts the surface of the plate 506. When water flows through the inlet pipe 503 into the feed cylinder 501, the impact of the water flow on the plate 506 generates a rotational torque, driving the rotating shaft 505 to rotate. The rotating shaft 505 then drives the curved rod 508 and the screw rod 507 to rotate, stirring and loosening the material inside the feed cylinder 501, thus achieving a hydraulically driven auxiliary mixing function. This hydraulically driven method requires no additional motor, and the stirring force generated by the water flow impact is relatively gentle, avoiding the shearing damage to grass seeds caused by traditional high-speed mechanical stirring.

[0078] The end of the rotating shaft 505 extending from the upper cover 504 is connected to an external motor. When the material has high viscosity or feeding is obstructed, the external motor can be activated to actively drive the rotating shaft 505, achieving forced mixing. The feeding cylinder 501 has both hydraulic passive drive and motor active drive modes, which can be flexibly switched according to the actual situation of the material. For materials containing grass seeds, the hydraulic passive drive mode is preferred, while for materials with high viscosity and poor flowability, the motor active drive mode can be used. Of course, the two drive modes can also be used in combination.

[0079] Optionally, such as Figure 18 Combination Figure 19 As shown, the transmission assembly 405 in this application also includes a telescopic sleeve 4056, which is sleeved on the outside of the elastic member 4055. The two ends of the telescopic sleeve 4056 are fixedly connected to the first seat 4051 and the second seat 4052 respectively. The elastic member 4055 is a compression spring. When the cam 406 pushes the piston 404, the compression spring is compressed and absorbs energy. When the cam 406 returns, the compression spring releases energy, extends, and drives the piston 404 to reset.

[0080] The telescopic sleeve 4056 is a telescopic hollow sleeve structure. When the distance between the first seat 4051 and the second seat 4052 changes, the telescopic sleeve 4056 extends or shortens accordingly, always fitting on the outside of the elastic element 4055 to seal and protect the elastic element 4055, preventing external material dust, soil particles, moisture and other impurities from entering the gap of the elastic element 4055, and avoiding the elastic element 4055 from getting stuck, rusted or worn due to the intrusion of impurities.

[0081] The elastic element 4055 is a compression spring, which is sleeved on the outside of the screw 4053 and located between the first seat 4051 and the second seat 4052. When the cam 406 pushes the transmission assembly 405 through the second seat 4052, the second seat 4052 moves towards the first seat 4051, the compression spring is compressed, absorbs the energy of the impact of the cam 406, buffers the rigid impact of the cam 406 on the piston 404, and stores some of the energy in the form of elastic potential energy.

[0082] When the cam 406 returns to its original position, the compression spring extends and releases energy, pushing the second seat 4052 away from the first seat 4051. This, in turn, drives the related components to quickly reset via the piston 404. The energy absorption and release characteristics of the compression spring give the transmission assembly 405 both a buffering and vibration damping function and an auxiliary reset function. When the adjusting nut 4054 is tightened, the initial distance between the first seat 4051 and the second seat 4052 decreases, the initial compression of the compression spring increases, the extension and retraction resistance of the transmission assembly 405 increases, and the pressurized injection pressure rises. When the adjusting nut 4054 is loosened, the initial distance between the first seat 4051 and the second seat 4052 increases, the initial compression of the compression spring decreases, the extension and retraction resistance of the transmission assembly 405 decreases, and the injection pressure decreases. By adjusting the tightness of nut 4054, the operator can change the initial preload of the compression spring within a certain range, thereby adjusting the telescopic characteristics of transmission component 405 and the pressurizing characteristics of piston 404. This allows for flexible adjustment of the spraying pressure to adapt to the varying spraying pressure requirements of different slope heights, gradients, and soil conditions. The overall structural design of the compression spring combined with the telescopic sleeve 4056 ensures both the spring's operational stability and dustproof effect, while also providing adjustable elastic buffering and reset functions.

[0083] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A hydroseeding device for slope surface restoration, characterized in that, Includes frame base, mixing bin, conveying pipe, spraying actuator, feeding rod, feeding assembly and power assembly; The mixing bin and the conveying pipe are both mounted on the frame base. The mixing bin and the conveying pipe are interconnected. The discharge end of the conveying pipe is connected to the spraying actuator. The feeding assembly is connected to the inlet end of the mixing bin. The power assembly is connected to the input end of the feeding rod. The feeding rod is installed in the cavity formed by the mixing bin and the conveying pipe; The spraying actuator includes a housing, a piston, a cam, and a transmission assembly. The housing is connected to the frame base, the piston is located inside the housing, one end of the feeding rod extends into the housing and is connected to the cam, and the transmission assembly is located between the cam and the piston. One end of the transmission assembly is connected to the cam, and the other end of the transmission assembly is connected to the piston.

2. The hydroseeding device for slope surface restoration according to claim 1, characterized in that, The mixing hopper includes a shell and a cover, the cover being closed over the opening of the shell; The conveying pipe is a tapered conveying pipe, with the large end of the tapered conveying pipe connected to one end of the housing, and the small end of the tapered conveying pipe away from the housing; The feeding rod includes a spiral mandrel and a propulsion blade. The propulsion blade is fixed on the spiral mandrel. The propulsion blade includes a first blade segment with a constant outer diameter and a second blade segment with a gradually decreasing outer diameter. The first blade segment is located in the mixing bin, and the second blade segment is located in the conical conveying pipe.

3. The hydroseeding device for slope surface restoration according to claim 1, characterized in that, The transmission assembly includes a first base, a second base, a screw, an adjusting nut, and an elastic element; The screw passes through the first seat and the second seat, the adjusting nut is installed at one end of the screw and axially limits the first seat or the second seat, and the elastic element is sleeved on the screw and clamped between the first seat and the second seat; The first seat is connected to the piston, and the second seat is connected to the cam.

4. The hydroseeding device for slope surface restoration according to claim 3, characterized in that, The cam is a first cam, and the circumferential side of the first cam is provided with an annular limiting groove or a curved limiting groove. The second seat has a protruding post at one end away from the first seat, and the protruding post extends into the limiting groove and slides in cooperation with the limiting groove.

5. The hydroseeding device for slope surface restoration according to claim 3, characterized in that, The cam is a second cam; The spraying actuator also includes a guide rod, one end of which is connected to the piston, and the other end of which is connected to the housing; The second cam abuts against the guide rod. When the second cam rotates, it pushes the guide rod and drives the piston to reciprocate within the housing.

6. The hydroseeding device for slope surface restoration according to claim 1, characterized in that, The outer shell is also provided with a sealing sleeve, and the end face of the sealing sleeve has a first connecting port and a second connecting port, which are arranged opposite to each other. Both the first and second connecting ports are equipped with valve flaps. When the valve flaps are arranged horizontally, they close the first and second connecting ports. When the valve flaps are flipped upwards, they open the first and second connecting ports.

7. The hydroseeding device for slope surface restoration according to claim 1, characterized in that, The spraying actuator also includes a discharge assembly, which is installed at the port of the housing; The discharge assembly includes a cylinder, a sealing cap, a valve core, a stand, a threaded sleeve, a retaining ring, and a first spring; The cylindrical body is fixed to the port of the outer shell and communicates with the interior of the outer shell, and the sealing cap is fitted onto the port of the cylindrical body; The valve core is located at the lower port of the cylinder, and the valve core has a cylindrical part that passes through the sealing cover and extends outward. The stand is fixed to the sealing cover, the threaded sleeve is installed on the stand and sleeved on the outside of the column part, the retaining ring is sleeved on the column part, and the first spring is clamped between the retaining ring and the threaded sleeve and sleeved on the outside of the column part. The valve core closes the lower port of the cylinder under the elastic force of the first spring, and opens the lower port when the valve core moves upward against the elastic force of the first spring. The outlet end of the cylinder is formed with a discharge nozzle, which is connected to the interior of the cylinder.

8. The hydroseeding device for slope surface restoration according to claim 2, characterized in that, One end of the housing is provided with a side plate, and the side plate is provided with a connecting seat, which is rotatably engaged with the end of the spiral mandrel; The feeding assembly is installed on the outside of the side plate, and the feeding assembly includes a feeding cylinder, the interior of which communicates with the interior of the housing; The outer wall of the feed cylinder is provided with at least two feed inlets and one liquid inlet pipe.

9. The hydroseeding device for slope surface restoration according to claim 8, characterized in that, The feed cylinder is covered with a top cover, and a rotating shaft is threaded through the top cover and extends into the interior of the feed cylinder. Multiple plates and curved rods are fixed on the rotating shaft, and a helical rod is connected to the end of each plate. The plate is arranged opposite to the liquid inlet pipe, and the water flow injected by the liquid inlet pipe impacts the plate to drive the rotating shaft to rotate. The end of the rotating shaft extending out of the upper cover is connected to an external motor.

10. The hydroseeding device for slope surface restoration according to claim 3, characterized in that, The transmission assembly also includes a telescopic sleeve, which is sleeved on the outside of the elastic member, and the two ends of the telescopic sleeve are fixedly connected to the first seat and the second seat, respectively. The elastic element is a compression spring. When the cam pushes the piston, the compression spring is compressed and absorbs energy. When the cam returns, the compression spring releases energy, extends, and drives the piston to reset.

Images