Sand throwing equipment with push shovel

Abstract

The utility model discloses sand throwing equipment with a push shovel, which comprises a chassis with a walking mechanism, a sand throwing device and a soil shoveling device, the sand throwing device is arranged on the chassis and used for throwing sand grains, the soil shoveling device comprises the push shovel and a lifting mechanism, and the push shovel is arranged on the chassis through the lifting mechanism. According to the technical scheme, the double-strategy fire extinguishing design is adopted, the fire extinguishing modes can be flexibly switched according to different fire behavior characteristics and environment conditions, and therefore the optimal fire extinguishing effect is achieved. An operator drives the device to approach a fire source area with small fire behavior, and the push shovel is adjusted to a proper height through the lifting mechanism so that the push shovel can make contact with the ground and begin to be propelled. Along with advancing of the equipment, the push shovel pushes the sandy soil forwards to a fire source area. If an isolation belt needs to be developed, the surface soil is directly pushed to form continuous obstacles. In addition, if a fire source area with a large fire behavior exists, sand grains are thrown to the fire source through a sand throwing machine, flames are rapidly covered, and efficient fire extinguishing is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of emergency rescue, in particular to a sand throwing device with a push shovel. Background Art

[0002] Currently, firefighters are using large sand-throwing vehicles as a common response strategy for fires where traditional extinguishing media like water, foam, or carbon dioxide are unsuitable. These innovative vehicles efficiently disperse sand directly at the source of a fire, significantly enhancing firefighting effectiveness and reducing direct exposure for firefighters in high-risk environments.

[0003] A Chinese patent application with publication number CN109806528A discloses an independently powered sand-throwing fire-extinguishing device, comprising a sandbox assembly and a scattering system; the sandbox assembly comprises a cargo box for storing sand, a feeding base plate arranged at the bottom of the cargo box for conveying sand to a feeding auger, and a feeding auger for twisting the sand into the scattering system; the scattering system comprises a rotatable scattering impeller for scattering sand outward.

[0004] In specific circumstances where the fire is small and there are ready-made sand piles nearby, the operation and maintenance costs of a sand-throwing fire-fighting system designed specifically for larger fires are disproportionate to the direct fire-fighting effect when dealing with small-scale fires, and there may be obvious waste of resources. Utility Model Content

[0005] To this end, it is necessary to provide a sand-throwing device with a pusher to solve the problem that in the specific case where the fire is small and there is a ready-made sand pile nearby, the operation and maintenance costs of the sand-throwing fire-fighting system specially designed for larger fires are disproportionate to the direct fire-fighting effect when dealing with small-scale fires, and there may be obvious waste of resources.

[0006] To achieve the above-mentioned purpose, this embodiment provides a sand-throwing equipment with a bulldozer, including a chassis with a walking mechanism, a sand-throwing device and a shoveling device. The sand-throwing device is arranged on the chassis and is used to throw sand particles. The shoveling device includes a bulldozer and a lifting mechanism. The bulldozer is arranged on the chassis through the lifting mechanism, and the lifting mechanism is used to raise or lower the bulldozer.

[0007] Furthermore, the lifting mechanism includes a linear motion component, which is arranged on the chassis and connected to the back of the dozer blade for raising or lowering the dozer blade.

[0008] Furthermore, the lifting mechanism also includes a bracket, one end of the linear motion assembly is hinged to the chassis, the other end of the linear motion assembly is hinged to the back of the dozer blade, one end of the bracket is hinged to the chassis, the other end of the bracket is arranged on the back of the dozer blade, the linear motion assembly and the bracket are spaced apart, and the hinge point of the linear motion assembly and the chassis is located above or below the hinge point of the bracket and the chassis.

[0009] Furthermore, the bracket includes two rocker arms arranged side by side, the two rocker arms are located on the left and right sides of the linear motion assembly, one end of the rocker arm is hinged to the crossbeam of the chassis, and the other end of the rocker arm is fixedly connected to the back of the bulldozer.

[0010] Furthermore, the other end of the swing rod is welded to the back of the push shovel, and a plurality of reinforcing plates are provided between the other end of the swing rod and the back of the push shovel.

[0011] Furthermore, a first hinge seat and a second hinge seat are provided on the crossbeam of the chassis, the first hinge seat is hinged to one end of the linear motion component through a first pin, the hinge point of the linear motion component and the chassis is at the position of the first pin, the second hinge seat is hinged to one end of the rocker arm through a second pin, and the hinge point of the bracket and the chassis is at the position of the second pin.

[0012] Furthermore, the linear motion component is an oil cylinder or a pneumatic cylinder.

[0013] Furthermore, it also includes a power device, which includes a hydraulic system. The hydraulic system is arranged on the chassis and connected to the oil cylinder to provide hydraulic power for the oil cylinder.

[0014] Furthermore, the chassis is a hydraulically driven crawler chassis, the crawler chassis includes a hydraulic motor for driving the crawler tracks, and the hydraulic system is connected to the hydraulic motor.

[0015] Furthermore, the front face of the push shovel is arc-shaped.

[0016] Furthermore, it also includes a power device, which is arranged on the chassis and connected to the chassis, the sand throwing device and the lifting mechanism respectively, and is used to provide power for the chassis, the sand throwing device and the lifting mechanism.

[0017] Different from the existing technology, the above technical solution has a dual-strategy fire extinguishing design, which can flexibly switch the fire extinguishing mode according to different fire characteristics and environmental conditions, thereby achieving the best fire extinguishing effect. The operator drives the equipment close to the fire source area with smaller fire, uses the lifting mechanism to adjust the dozer to an appropriate height, makes it touch the ground and starts to move forward. As the equipment moves forward, the dozer pushes the sand forward to the fire source area. If an isolation zone needs to be opened, the surface soil is directly pushed to form a continuous barrier. In addition, if there is a fire source area with a larger fire, sand is thrown towards the fire source through a sand thrower to quickly cover the flames and achieve efficient fire extinguishing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A perspective view of the sand throwing equipment in this embodiment;

[0019] Figure 2 This is a front view of the sand throwing equipment in this embodiment;

[0020] Figure 3 is a perspective view of the shoveling device and chassis in this embodiment;

[0021] Figure 4 This is a front view of the shoveling device and chassis in this embodiment;

[0022] Figure 5 It is a top view of the shoveling device and chassis in this embodiment.

[0023] Description of reference numerals:

[0024] 1. Chassis; 11. Traveling mechanism; 12. Crossbeam;

[0025] 2. Sand throwing device; 21. Sand throwing machine; 22. Sand throwing arm; 23. Sand throwing pipe;

[0026] 3. Shoveling device; 31. Pushing shovel; 32. Lifting mechanism; 321. Linear motion assembly; 322. Bracket; 3221. Rocker arm; 3222. Reinforcement plate; 33. First hinge seat; 331. First pin; 34. Second hinge seat; 341. Second pin;

[0027] 4. Power unit; 41. Engine; 42. Hydraulic pump. DETAILED DESCRIPTION

[0028] In order to explain in detail the possible application scenarios, technical principles, specific solutions that can be implemented, and the purpose and effects of this application, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of this application and are therefore only examples and are not intended to limit the scope of protection of this application.

[0029] References to "embodiments" herein mean that the specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the word "embodiment" in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the various technical features mentioned in the embodiments can be combined in any manner to form a corresponding implementable technical solution.

[0030] Unless otherwise defined, the technical terms used herein have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms herein is only for describing specific embodiments and is not intended to limit this application.

[0031] In the description of this application, the term "and / or" is used to describe a logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and both A and B exist. In addition, the character " / " in this document generally indicates that the objects before and after are in a logical "or" relationship.

[0032] In this application, terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantity, priority or sequence relationship between these entities or operations.

[0033] Without further limitations, in this application, the words "include", "comprise", "have" or other similar expressions used in the sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those defined elements, but also other elements not explicitly listed, or elements inherent to such process, method or product.

[0034] Consistent with the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceed" are understood to exclude the number itself; expressions such as "above," "below," and "within" are understood to include the number itself. Furthermore, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this manner, such as "multiple groups," "multiple times," etc., unless otherwise specifically defined.

[0035] In the description of the embodiments of the present application, the space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, it should not be understood as a limitation on the embodiments of the present application.

[0036] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms "installed", "connected", "connected", "fixed", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art of the present application, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0037] See also Figure 1 and Figure 2 This embodiment provides a sand throwing device with a bulldozer 31, including a chassis 1 with a walking mechanism 11, a sand throwing device 2 and a shoveling device 3. The sand throwing device 2 is arranged on the chassis 1 and is used to throw sand particles. The shoveling device 3 includes a bulldozer 31 and a lifting mechanism 32. The bulldozer 31 is arranged on the chassis 1 through the lifting mechanism 32, and the lifting mechanism 32 is used to raise or lower the bulldozer 31.

[0038] The sand slinger 21 may be a blade-type sand slinger 21, comprising a housing and an impeller. The housing is the main supporting structure of the sand slinger 21 and is usually made of high-strength metal materials such as cast iron, steel plates or aluminum alloys to ensure its strength and durability. The shape and design of the housing will vary depending on the type and application scenario of the sand slinger 21. A cavity is provided in the housing, and the cavity is connected to the outside world through a sand outlet and a sand inlet, so that air or sand can smoothly enter and leave the sand slinger 21. An impeller is provided in the cavity, and the shaft of the impeller is connected to the motor. The impeller can rotate at high speed, and sand and other materials enter through the sand inlet, are gradually accelerated to a higher speed under the push of the blades, and are thrown out at high speed under the action of high-speed centrifugal force.

[0039] This solution has a dual-strategy fire extinguishing design, which can flexibly switch the fire extinguishing mode according to different fire characteristics and environmental conditions, thereby achieving the best fire extinguishing effect. The operator drives the equipment close to the fire source area with a smaller fire, uses the lifting mechanism 32 to adjust the push shovel 31 to an appropriate height, makes it touch the ground and starts to advance, and presses down to push the sand forward. As the equipment moves forward, the push shovel 31 pushes the sand forward to the fire source area. If an isolation zone needs to be opened, the surface soil is directly pushed to form a continuous barrier. In addition, if there is a fire source area with a larger fire, the sand is thrown towards the fire source through the sand thrower 21 to quickly cover the flames and achieve efficient fire extinguishing.

[0040] In this embodiment, the lifting mechanism 32 includes a linear motion assembly 321, which is mounted on the chassis 1 and connected to the back of the dozer blade 31, for raising or lowering the dozer blade 31. The linear motion assembly 321 is a component such as an oil cylinder, pneumatic cylinder, or electric push rod that can be extended or retracted along a straight line. It can be tilted or positioned perpendicular to the horizontal plane to drive the dozer blade 31 upward or downward. For example, the cylinder barrel of an oil cylinder can be fixed to the chassis, and its piston rod is connected to the dozer blade 31. By tilting or vertically positioning the oil cylinder, the dozer blade 31 can be driven upward or downward along a predetermined trajectory.

[0041] A hydraulic cylinder is a common hydraulic drive component that uses internal fluid pressure fluctuations to achieve reciprocating motion of a piston rod. It is suitable for applications requiring strong driving force and high-precision control. In sand throwing equipment, the cylinder provides sufficient force to drive the dozer blade 31 upward and downward while ensuring smooth and stable movement. Pneumatic cylinders, on the other hand, use compressed air as a power source, driving the piston rod in reciprocating linear motion through changes in air pressure.

[0042] See also Figure 3 、 Figure 4 and Figure 5 In this embodiment, the lifting mechanism 32 also includes a bracket 322, one end of the linear motion component 321 is hinged to the chassis 1, and the other end of the linear motion component 321 is hinged to the back of the dozer 31, one end of the bracket 322 is hinged to the chassis 1, and the other end of the bracket 322 is arranged on the back of the dozer 31, the linear motion component 321 and the bracket 322 are arranged at intervals, and the hinge point of the linear motion component 321 and the chassis 1 is located above or below the hinge point of the bracket 322 and the chassis 1, forming a triangular structure. In most cases, the linear motion component 321 is inclined.

[0043] By adjusting the extension and retraction of the linear motion assembly 321, the equipment can quickly change the height and inclination of the dozer 31, meeting diverse operational needs from soil and rock removal and sand leveling to sand throwing for firefighting, greatly improving the equipment's flexibility and work efficiency. For example, if the hinge point of the linear motion assembly 321 and the chassis 1 is located above the hinge point of the bracket 322 and the chassis 1, when the linear motion assembly 321 is extended, the linear motion assembly 321 rotates downward about its hinge point with the chassis 1, the dozer 31 descends, and the inclination angle of the front of the dozer 31 also changes accordingly. Specifically, this decreases, making it easier for the dozer 31 to cut into the soil or sand, achieving efficient soil removal or sand preparation. Conversely, when the linear motion assembly 321 is shortened, the linear motion assembly 321 rotates upward about its hinge point with the chassis 1, the dozer 31 rises, and its inclination angle increases accordingly.

[0044] See also Figure 3 、 Figure 4 and Figure 5 In this embodiment, the bracket 322 includes two rocker arms 3221 arranged side by side. The two rocker arms 3221 are located on the left and right sides of the linear motion component 321. One end of the rocker arm 3221 is hinged to the crossbeam 12 of the chassis 1, and the other end of the rocker arm 3221 is fixedly connected to the back of the dozer blade 31.

[0045] The introduction of a dual, side-by-side rocker 3221 design significantly enhances the stability and balance of the dozer blade 31 during lifting and lowering. These two rocker 3221s are located on either side of the linear motion assembly 321, creating a symmetrical layout. One end of each rocker 3221 is connected to the crossbeam 12 of the chassis 1 via a hinge point, ensuring that the rocker 3221 can rotate freely with the movement of the linear motion assembly 321. The other end is securely fixed to the back of the dozer blade 31, sharing the weight of the dozer blade 31 and the stresses generated during operation.

[0046] See also Figure 3 、 Figure 4 and Figure 5 In this embodiment, the other end of the swing arm 3221 is welded to the back of the dozer blade 31. Multiple reinforcement plates 3222 are also installed between the other end of the swing arm 3221 and the back of the dozer blade 31. The dozer blade 31 and the swing arm 3221 are subjected to direct pressure from soil and sand, as well as repeated tensile and compressive stresses driven by the linear motion assembly 321. The reinforced weld and the use of reinforcement plates 3222 further enhance the rigidity and bending resistance of the joint, effectively dispersing stress concentration and preventing cracks or breakage during long-term use.

[0047] See also Figure 3In this embodiment, a first hinge seat 33 and a second hinge seat 34 are provided on the crossbeam 12 of the chassis 1. The first hinge seat 33 is hinged to one end of the linear motion assembly 321 via a first pin 331. The hinge point between the linear motion assembly 321 and the chassis 1 is located at the position of the first pin 331. The second hinge seat 34 is hinged to one end of the rocker arm 3221 via a second pin 341. The hinge point between the bracket 322 and the chassis 1 is located at the position of the second pin 341. For example, in the case where the hinge point between the linear motion assembly 321 and the chassis 1 is located above the hinge point between the bracket 322 and the chassis 1, the first hinge seat 33 protrudes upward above the second hinge seat 34, and the first pin 331 is located above the second pin 341. Since the first hinge seat 33 is designed to be higher than the second hinge seat 34, the hinge point between the linear motion component 321 and the chassis 1 is located above the hinge point between the bracket 322 and the chassis 1, forming a triangular structure therebetween, which can more efficiently utilize the linear motion component 321.

[0048] Unlike embodiments in which the lifting mechanism comprises a linear motion assembly and a bracket, in some embodiments, a bracket articulated to the dozer blade may not be required, and the dozer blade may be raised or lowered by a tilted or vertically positioned linear motion assembly. In other embodiments, the lifting mechanism may be a robotic arm with multiple degrees of freedom to drive the dozer blade up or down.

[0049] See also Figure 1 In this embodiment, the sand throwing equipment also includes a power device 4, which is arranged on the chassis 1 and is respectively connected to the chassis 1, the sand throwing device 2, and the lifting mechanism 32, and is used to provide power for the chassis 1, the sand throwing device 2 and the lifting mechanism 32.

[0050] See also Figure 1 In this embodiment, the power unit 4 includes a hydraulic system, which is arranged on the chassis 1 and connected to the oil cylinder to provide hydraulic power to the oil cylinder, drive it to complete the telescopic action, and thus control the lifting and lowering of the dozer blade 31. The hydraulic system extracts the hydraulic oil from the oil tank through the hydraulic pump 42, and delivers it to the oil cylinder after pressurization, pushing the piston inside the oil cylinder, and then driving the piston rod to perform linear motion. The extension or retraction of the piston rod is directly related to the lifting and lowering of the dozer blade 31, realizing precise control of the position and angle of the dozer blade 31. The design of the hydraulic system also takes into account pressure control and flow regulation to ensure the stable operation of the oil cylinder under different operating requirements, while minimizing energy loss and improving energy utilization efficiency.

[0051] See also Figures 1 to 5In this embodiment, the chassis 1 is a hydraulically driven crawler chassis 1, and the crawler chassis 1 includes a hydraulic motor for driving the crawler tracks to move, and the hydraulic system is connected to the hydraulic motor. The hydraulically driven crawler chassis 1 converts the mechanical energy of the engine 41 into hydraulic energy through the hydraulic system, and then converts the hydraulic energy into mechanical energy through the hydraulic motor to drive the crawler tracks to rotate, thereby realizing the movement of the equipment. In some embodiments, the chassis 1 can be a wheeled chassis 1. The crawler design of the crawler chassis 1 provides better ground adhesion and terrain adaptability than the traditional wheeled chassis 1, especially on soft, rugged or slippery ground, which can effectively avoid slipping and sinking, thereby ensuring the stable operation of the equipment.

[0052] See also Figure 1 In this embodiment, the power unit 4 includes an engine 41, which is connected to a hydraulic pump 42 of the hydraulic system. This connection can be direct or through a transmission component such as a gearbox, drive shaft, chain, or belt to achieve power transmission and distribution. The hydraulic pump 42 uses hydraulic power to drive two hydraulic motors, which respectively drive the impeller shaft of the sand slinger 21 and the oil cylinder of the lifting mechanism 32.

[0053] See also Figure 1 、 Figure 3 and Figure 4 In this embodiment, the front surface of the dozer blade 31 is curved. The curved design can effectively reduce the frictional resistance between the contact surface between the bucket and the material. When the bucket is inserted into the material, the curved surface can guide the material to flow along its surface instead of directly rubbing against the bucket surface, thereby reducing the required digging force.

[0054] See also Figure 1 In this embodiment, the sand throwing device 2 further includes a sand throwing arm 22, on which a sand throwing tube 23 connected to the sand throwing machine 21 is provided. The sand throwing arm 22 can adjust the direction of the sand throwing tube 23 to select a suitable sand throwing path.

[0055] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection of the present utility model. Therefore, based on the innovative concept of the present utility model, changes and modifications to the embodiments described herein, or equivalent structural or process transformations made using the contents of the present utility model specification and drawings, and direct or indirect application of the above technical solutions to other related technical fields are all included in the scope of protection of the present utility model patent.

Claims

1. A sand throwing device with a bulldozer, characterized in that: The utility model comprises a chassis with a walking mechanism, a sand throwing device and a shoveling device. The sand throwing device is arranged on the chassis and is used to throw sand. The shoveling device comprises a bulldozer and a lifting mechanism. The bulldozer is arranged on the chassis through the lifting mechanism, and the lifting mechanism is used to raise or lower the bulldozer.

2. The sand throwing equipment according to claim 1, characterized in that: The lifting mechanism includes a linear motion component, which is arranged on the chassis and connected to the back of the dozer blade for raising or lowering the dozer blade.

3. The sand throwing equipment according to claim 2, characterized in that: The lifting mechanism also includes a bracket, one end of the linear motion assembly is hinged to the chassis, and the other end of the linear motion assembly is hinged to the back of the dozer blade. One end of the bracket is hinged to the chassis, and the other end of the bracket is arranged on the back of the dozer blade. The linear motion assembly and the bracket are spaced apart, and the hinge point of the linear motion assembly and the chassis is located above or below the hinge point of the bracket and the chassis.

4. The sand throwing equipment according to claim 3, characterized in that: The bracket includes two rocker arms arranged side by side, the two rocker arms are located on the left and right sides of the linear motion assembly, one end of the rocker arm is hinged to the crossbeam of the chassis, and the other end of the rocker arm is fixedly connected to the back of the dozer blade.

5. The sand throwing equipment according to claim 4, characterized in that: The other end of the swing rod is welded to the back of the push shovel, and a plurality of reinforcing plates are provided between the other end of the swing rod and the back of the push shovel.

6. The sand throwing equipment according to claim 4, characterized in that: A first hinge seat and a second hinge seat are provided on the crossbeam of the chassis. The first hinge seat is hinged to one end of the linear motion component through a first pin. The hinge point of the linear motion component and the chassis is at the position of the first pin. The second hinge seat is hinged to one end of the rocker arm through a second pin. The hinge point of the bracket and the chassis is at the position of the second pin.

7. The sand throwing equipment according to any one of claims 2 to 6, characterized in that: The linear motion component is an oil cylinder or an air cylinder.

8. The sand throwing equipment according to claim 7, characterized in that: It also includes a power device, which includes a hydraulic system. The hydraulic system is arranged on the chassis and connected to the oil cylinder to provide hydraulic power for the oil cylinder.

9. The sand throwing equipment according to claim 8, characterized in that: The chassis is a hydraulically driven crawler chassis, which includes a hydraulic motor for driving crawler tracks to travel, and the hydraulic system is connected to the hydraulic motor.

10. The sand throwing equipment according to claim 1, characterized in that: It also includes a power device, which is arranged on the chassis and is respectively connected to the chassis, the sand throwing device and the lifting mechanism, and is used to provide power for the chassis, the sand throwing device and the lifting mechanism.

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