Sand prevention structure of sand throwing vehicle
By designing a sand-blocking component on the sand-throwing vehicle, the problem of sand falling into the through hole of the rotating device was solved, thus reducing maintenance needs and extending the equipment's lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-04-07
AI Technical Summary
In existing sand-throwing truck designs, some sand falls downwards due to gravity or other factors when thrown at high speed, entering the through-hole of the rotating device. This leads to increased frictional resistance and wear on mechanical parts, reducing equipment performance and service life.
A sand-prevention structure including a sand-blocking component is designed. The sand-blocking component consists of a sand-blocking plate and an annular baffle. The sand-blocking plate is located on the outer wall of the sand outlet pipe. Radial and axial components form a barrier to prevent sand from entering the through hole of the rotating device. The annular baffle is located above the through hole to further prevent sand from entering.
It effectively prevents sand from entering the rotating device, reducing cleaning and maintenance needs, lowering maintenance costs and mechanical wear, and extending the service life of the equipment.
Smart Images
Figure CN224085885U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a sand throwing vehicle field especially relates to a sand throwing vehicle's sand prevention structure. BACKGROUND
[0002] Currently, in the face of those not suitable for using water, foam or carbon dioxide and other traditional fire extinguishing medium special fire situation, fire emergency field generally adopted sand throwing fire extinguishing vehicle as the coping strategy.
[0003] The sand throwing fire extinguishing vehicle developed by the inventor previously contains sand throwing fan, rotary device and sand throwing arm and other components. Among them, the sand throwing fan is responsible for throwing sand upwards through the top sand outlet pipe. The rotary device includes a rotary mechanism, which is installed on the sand throwing fan and supports the rotary disc and the sand throwing arm located thereon. The rotary disc is provided with a through hole for the sand outlet pipe to pass through, so as to facilitate the transmission of sand.
[0004] In the actual application process, the inventor found that this design has certain limitations: when the sand is thrown at high speed, although most of the sand can accurately reach the predetermined position through the sand throwing arm, a small part of the sand will fall down due to gravity or other factors and fall into the through hole below the rotary disc. These sand falling into the through hole may further enter the inside of the rotary bearing, which will adversely affect the rotation function, such as increasing the friction resistance or causing the mechanical parts to wear out, thereby reducing the performance and service life. UTILITY MODEL CONTENTS
[0005] Therefore, it is necessary to provide a sand throwing vehicle sand prevention structure to solve the problems in the background art.
[0006] To achieve the above purpose, the inventor provides a sand throwing vehicle sand prevention structure, which comprises a sand throwing fan, a rotary device and a sand blocking component.
[0007] The sand throwing fan is used to throw sand from the sand outlet pipe, and the sand outlet pipe faces upwards.
[0008] The rotary device is arranged on the sand throwing fan and located outside the sand outlet pipe, and the rotary device has a through hole for the sand outlet pipe to pass through.
[0009] The sand blocking component is a sand blocking plate located above the through hole, which is arranged on the outer wall of the sand outlet pipe and surrounds the sand outlet pipe, and is used to prevent the sand falling from above from entering the through hole.
[0010] Further, the sand blocking plate includes a radial portion, one end of which is arranged on the outer wall of the sand outlet pipe, and the other end extends outward along the radial direction of the sand outlet pipe.
[0011] Further, the sand blocking plate further comprises an axial part, one end of the axial part is arranged on the radial part, and the other end extends along the axial direction of the sand outlet pipe and away from the radial part, and the axial part is located outside the through hole.
[0012] Further, the axial part is cylindrical, and the radial part is annular plate-shaped.
[0013] Further, the sand blocking assembly further comprises an annular blocking wall, the annular blocking wall is arranged on the upper surface of the rotating device and surrounds the through hole, the axial part surrounds the annular blocking wall, and the annular blocking wall extends upward into the space surrounded by the axial part, so as to prevent the falling sand from entering the through hole.
[0014] Further, the sand blocking assembly further comprises an annular blocking wall, the annular blocking wall is arranged on the upper surface of the rotating device and surrounds the through hole, the annular blocking wall is located between the edge of the sand blocking plate and the edge of the through hole, so as to prevent the falling sand from entering the through hole.
[0015] Further, the outer wall of the sand outlet pipe has a connecting plate protruding outward, and the radial part is fastened to the connecting plate by bolts.
[0016] Further, the projection of the sand blocking plate in the vertical direction covers the projection of the through hole in the vertical direction.
[0017] Further, the rotating device comprises a rotating mechanism and a rotating disc, the rotating disc has the through hole, the rotating mechanism comprises a bottom plate and a rotating support, the bottom plate is sleeved on the outer wall of the sand outlet pipe and serves as the bottom of the through hole, and the rotating support surrounds the sand outlet pipe and supports and drives the rotating disc to rotate.
[0018] Further, the sand throwing arm is arranged on the rotating mechanism, the rotating disc supports the sand throwing arm, and the inlet of the sand throwing arm is located above the sand outlet pipe to receive the sand thrown out of the sand outlet pipe.
[0019] Compared with the prior art, the above technical scheme has the following beneficial effects:
[0020] When the sand throwing fan is started, the sand is thrown upward at high speed through the sand outlet pipe. The design of the sand outlet pipe makes the sand mainly shoot in the predetermined direction, but due to the action of gravity or other factors, a small amount of sand may deviate from the target direction and fall downward. In order to prevent these deviated sand from falling into the rotating device, the sand blocking assembly is specially designed to block the sand and make the sand fall elsewhere, reducing the need for frequent cleaning and maintenance of the rotating device, reducing maintenance cost and time consumption, reducing mechanical wear of the rotating device, and prolonging the service life of the equipment.
[0021] The above content related to the description of the utility model is only a summary of the technical solutions of the present application. In order to enable those skilled in the art to more clearly understand the technical solutions of the present application, and then can be implemented according to the content of the description and the drawings, and in order to enable the above-mentioned purposes and other purposes, characteristics and advantages of the present application to be more easily understood, the following is described in combination with the specific embodiments of the present application and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS
[0022] The accompanying drawings are only used to show the principles, implementation manners, applications, characteristics and effects of the specific embodiments of the utility model and other related contents, and cannot be considered as a limitation of the present application.
[0023] Figure 1 is one of the side views of the sand prevention structure in the present embodiment;
[0024] Figure 2 is the second side view of the sand prevention structure in the present embodiment;
[0025] Figure 3 is Figure 1 is a sectional view of the sand blocking assembly and the rotating device;
[0026] Figure 4 is one of the perspective views of the sand blocking assembly and the rotating device in the present embodiment;
[0027] Figure 5 is the second perspective view of the sand blocking assembly and the rotating device in the present embodiment.
[0028] Explanation of reference signs:
[0029] 1, sand throwing fan; 11, sand outlet pipe; 111, connecting plate;
[0030] 2, rotating device; 21, rotating mechanism; 211, rotating support; 212, bottom plate; 22, rotating disc; 23, through hole;
[0031] 3, sand blocking assembly;
[0032] 31, sand blocking plate; 311, radial part; 312, axial part; 32, annular blocking wall;
[0033] 4, sand throwing arm. DETAILED DESCRIPTION
[0034] In order to enable those skilled in the art to more clearly understand the technical solutions of the present application, and then can be implemented according to the content of the description and the drawings, and in order to enable the above-mentioned purposes and other purposes, characteristics and advantages of the present application to be more easily understood, the following is described in combination with the specific embodiments of the present application and the accompanying drawings. The embodiments described in the present document are only used to more clearly illustrate the technical solutions of the present application, therefore only as an example, and cannot limit the protection scope of the present application.
[0035] Reference to "an embodiment" or "the embodiment" in this document means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase "in one embodiment" or "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily referring to a single, common embodiment, or that all the embodiments are the same. In principle, any feature of one embodiment can be combined with any feature of another embodiment, unless technically infeasible or otherwise incompatible.
[0036] Unless otherwise defined, all technical terms used in this disclosure have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terms used in this disclosure are not intended to be limited to just the preferred embodiments described herein, but in fact, encompass multiple meanings of the term which will become apparent to those ordinarily skilled in the art with the benefit of this disclosure.
[0037] In the description of the application, the phrase "and / or" is a descriptive term that is used to describe a logical relationship between objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this document generally represents a "or" logical relationship between the objects before and after it.
[0038] In this application, terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantity, primary and secondary or order relationship between the entities or operations.
[0039] In this application, without more limitation, the "includes", "contains", "has" or other similar open expressions used in the statement are intended to cover non-exclusive inclusion, and these expressions do not exclude the presence of other elements in the process, method or product including the described elements, so that the process, method or product including a series of elements can not only include those limited elements, but also include other elements not explicitly listed, or also include the elements inherent to such process, method or product.
[0040] In this application, "greater than", "less than", "exceed" and other expressions are understood as not including the number, and "above", "below", "within" and other expressions are understood as including the number. In addition, in the description of the embodiments of the application, the meaning of "multiple" is more than two (including two), and similar expressions related to "multiple" are also understood in this way, for example, "multiple groups", "multiple times" and the like, unless otherwise explicitly limited.
[0041] In the description of the embodiments of the present application, the spatial relative expressions such as "central", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship shown in the specific embodiments or the drawings, and are only for the convenience of describing the specific embodiments of the present application or for the reader to understand, and do not indicate or imply that the indicated device or component must have a particular position, a particular orientation, or be constructed or operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.
[0042] Unless otherwise explicitly specified or limited, in the description of the embodiments of the present application, the terms "mount", "connect", "connect", "fix", "set", and the like should be broadly understood. For example, the "connection" can be a fixed connection, or a detachable connection, or an integral setting; it can be directly connected, or indirectly connected through an intermediate medium; it can be a relationship in which two components are combined together, or a relationship in which two components interact with each other, or a communication within two structures. For those skilled in the art to which the present application belongs, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.
[0043] Please refer to Figures 1 to 5 The embodiment provides a sand throwing vehicle sand prevention structure, which comprises a sand throwing fan 1, a rotating device 2 and a sand blocking assembly 3.
[0044] The sand throwing fan 1 is used for throwing sand out of a sand outlet pipe 11, and the sand outlet pipe 11 faces upwards.
[0045] The rotating device 2 is arranged on the sand throwing fan 1 and located outside the sand outlet pipe 11, and the rotating device 2 has a through hole 23 through which the sand outlet pipe 11 passes.
[0046] The sand blocking assembly 3 comprises a sand blocking plate 31 located above the through hole 23, and the sand blocking plate 31 is arranged on the outer wall of the sand outlet pipe 11 and surrounds the sand outlet pipe 11, and is used for shielding the sand above from falling into the through hole 23.
[0047] The sand blocking plate 31 is mounted on the outer wall of the sand outlet pipe 11, and this arrangement enables the sand blocking plate 31 to closely fit the sand outlet pipe 11, preventing a gap for sand to fall between them. The vertical projection refers to the shadow area formed by the sand blocking plate 31 and the through hole 23 on the horizontal plane when viewed vertically downward from above.
[0048] When the sand throwing fan 1 is started, sand is thrown upward at high speed through the sand outlet pipe 11. The design of the sand outlet pipe 11 makes the sand mainly shoot in the intended direction, but due to gravity or other factors, a small amount of sand may deviate from the target direction and fall downward. In order to prevent these deviated sand from falling into the rotary device 2, the sand blocking assembly 3 is specially designed to block the sand and let it fall elsewhere, reducing the need for frequent cleaning and maintenance of the rotary device 2, reducing maintenance costs and time consumption, reducing mechanical wear of the rotary device 2, and prolonging the service life of the equipment.
[0049] Please refer to Figures 2 to 5 In this embodiment, the sand blocking plate 31 includes a radial portion 311, one end of which is arranged on the outer wall of the sand outlet pipe 11, and the other end extends outward along the radial direction of the sand outlet pipe 11, forming an effective barrier that can block most of the sand falling from above and prevent them from entering the through hole 23 of the rotary device 2.
[0050] Please refer to Figures 3 to 5 In this embodiment, the sand blocking plate 31 also includes an axial portion 312, one end of which is arranged on the radial portion 311, and the other end extends along the axial direction of the sand outlet pipe 11 and away from the radial portion 311, and the axial portion 312 is located outside the through hole 23. At this time, the projection of the radial portion 311 in the vertical direction covers the projection of the through hole 23 in the vertical direction. When sand falls from above, it will first encounter the radial portion 311, and most of the sand will be blocked by the radial portion 311. However, in extreme cases (such as strong wind), a small amount of sand may bypass the radial portion 311. At this time, the axial portion 312 will play a key role, which can capture and block these bypassing sand, further preventing them from entering the through hole 23.
[0051] Please refer to Figures 4 to 5 In this embodiment, the axial portion 312 is cylindrical, and the radial portion 311 is annular plate-shaped. The cylindrical axial portion 312 means that the axial portion 312 presents a hollow cylindrical shape, with a certain gap between its inner surface and the outer wall of the sand outlet pipe 11, and a continuous annular protective surface on its outer surface. This design not only provides effective sand blocking in the axial direction, but also maintains the lightness and stability of the structure. The annular plate-shaped radial portion 311 means that the radial portion 311 presents an annular flat plate structure, one end of which is connected to the outer wall of the sand outlet pipe 11, and the other end extends outward along the radial direction of the sand outlet pipe 11, forming an annular protective barrier. This design can ensure that the sand is effectively blocked in the radial direction, preventing them from entering the through hole 23.
[0052] In another embodiment, the axial portion 312 in the above embodiment can be adjusted to be inclined to the axial direction of the sand outlet pipe 11, the edge of the sand blocking plate 31 extends to the outside of the through hole 23, the axial portion 312 is not parallel to the axial direction of the sand outlet pipe 11, but presents an inclined angle, and the sand blocking plate 31 forms an isosceles trapezoidal shape.
[0053] Referring to Figure 3 and Figure 5 In the present embodiment, the sand blocking assembly 3 further comprises an annular blocking wall 32, which is arranged on the upper surface of the rotating device 2 and surrounds the through hole 23, and is located between the edge of the sand blocking plate 31 and the edge of the through hole 23 to prevent the falling sand from entering the through hole 23. The axial portion 312 is located above, and the annular blocking wall 32 is located below, and the annular blocking wall 32 is higher than the upper opening of the through hole 23, and serves as the last line of defense to block the sand from approaching the through hole 23.
[0054] Referring to Figures 1 to 3 , Figure 5 In the preferred embodiment, the axial direction of the sand outlet pipe 11 is vertical, and the annular blocking wall 32 extends upward into the space surrounded by the axial portion 312, further increasing the difficulty of sand intrusion into the through hole 23.
[0055] Referring to Figure 3 In the present embodiment, the outer wall of the sand outlet pipe 11 has a connecting plate 111 protruding outward, and the radial portion 311 is fastened to the connecting plate 111 by bolts. The connecting plate 111 refers to a flat plate or similar structure protruding outward on the outer wall of the sand outlet pipe 11, which mainly serves as a stable connection point for firmly fixing the radial portion 311 (and the sand blocking assembly 3 connected thereto) to the sand outlet pipe 11. The bolt fastening method is widely used due to its simplicity, reliability and ease of disassembly and maintenance.
[0056] Referring to Figure 3 In the present embodiment, the projection of the sand blocking plate 31 in the vertical direction covers the projection of the through hole 23 in the vertical direction. In order to ensure that the sand does not fall into the through hole 23, the design of the sand blocking plate 31 is preferably such that its projection in the vertical direction completely covers the projection of the through hole 23. This means that even if the sand deviates from the predetermined path and falls, it will first hit the sand blocking plate 31 instead of directly entering the through hole 23. Assuming that the diameter of the through hole 23 is 20 cm, the width of the sand blocking plate 31 can be 25 cm (i.e. 2.5 cm on each side), which ensures that its projection completely covers the projection of the through hole 23, leaving a certain safety margin.
[0057] In some embodiments, the projection of the sand blocking plate 31 in the vertical direction can not cover the projection of the through hole 23 in the vertical direction, as long as the falling sand can smoothly slide along the sand blocking plate 31 to the area outside the through hole 23.
[0058] Referring to Figure 3 and Figure 5 In this embodiment, the rotating device 2 comprises a rotating mechanism 21 and a rotating disc 22, the rotating disc 22 has a through hole 23, the rotating mechanism 21 comprises a bottom plate 212 and a rotating support 211, the bottom plate 212 is sleeved on the outer wall of the sand outlet pipe 11 and serves as the hole bottom of the through hole 23, and the rotating support 211 surrounds the sand outlet pipe 11 and supports and drives the rotating disc 22 to rotate. The rotating support 211 is a bearing device capable of bearing complex loads such as axial, radial and overturning moment. It is installed around the sand outlet pipe 11, supports and drives the rotating disc 22 to rotate. Generally, the outer ring of the rotating support 211 is driven by a motor, the motor is connected with the outer ring of the rotating support 211 through a transmission assembly, the outer ring rotates, the inner ring of the rotating support 211 also rotates, and the inner ring supports the rotating disc 22, and the rotating disc 22 rotates following the rotation of the inner ring. The bottom plate 212 provides the installation basis of the rotating support 211. Since sand will enter and accumulate on the bottom plate 212 through the through hole 23, it will have an adverse effect on the rotating support 211, such as increasing the friction resistance or causing the mechanical parts to wear out more severely, thereby reducing the performance and service life. Therefore, the sand prevention structure is designed to prevent the sand falling from above from entering the through hole 23.
[0059] Referring to Figure 1 In this embodiment, the sand prevention structure further comprises a sand throwing arm 4, the sand throwing arm 4 is arranged on the rotating mechanism 21, the rotating disc 22 supports the sand throwing arm 4, and the inlet of the sand throwing arm 4 is located above the sand outlet pipe 11 to receive the sand thrown from the sand outlet pipe 11. The sand throwing arm 4 is a mechanical structure for receiving, transmitting and throwing sand, aiming to optimize the transmission efficiency and throwing range of sand. The inlet of the sand throwing arm 4 is located above the sand outlet pipe 11, when the sand is thrown out of the sand outlet pipe 11, they will directly enter the inlet of the sand throwing arm 4 and be guided by the channel inside the sand throwing arm 4. When the sand reaches the outlet of the sand throwing arm 4, they will be thrown out at a certain speed and angle, so as to cover the target area.
[0060] In this embodiment, the working principle of the sand throwing fan 1 is mainly to use the airflow generated by the fan to throw the sand.
[0061] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of the present application, they do not limit the patent protection scope of the present application. Any technical solutions obtained by replacing or modifying the equivalent structure or equivalent process based on the essential concept of the present application, using the content described in the specification and drawings of the present application, and directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are all included in the patent protection scope of the present application.
Claims
1. A sand-proof structure for a sand-throwing vehicle, characterized in that: Includes sand-throwing blowers, rotary devices, and sand-blocking components; The sand-throwing blower is used to throw sand out of the sand outlet pipe, which faces upward; The rotary device is mounted on the sand-throwing blower and located outside the sand outlet pipe. The rotary device has a through hole through which the sand outlet pipe passes. The sand-blocking assembly is a sand-blocking plate located above the through hole. The sand-blocking plate is disposed on the outer wall of the sand outlet pipe and surrounds the sand outlet pipe to prevent sand falling from above from entering the through hole.
2. The sand-control structure according to claim 1, characterized in that: The sand baffle includes a radial portion, one end of which is disposed on the outer wall of the sand outlet pipe, and the other end extends outward along the radial direction of the sand outlet pipe.
3. The sand-control structure according to claim 2, characterized in that: The sand baffle also includes an axial portion, one end of which is located on the radial portion, and the other end extends along the axial direction of the sand outlet pipe and away from the radial portion. The axial portion is located outside the through hole.
4. The sand-control structure according to claim 3, characterized in that: The axial portion is cylindrical, and the radial portion is annular.
5. The sand-control structure according to claim 3 or 4, characterized in that: The sand-blocking assembly also includes an annular baffle wall, which is disposed on the upper surface of the rotating device and surrounds the through hole. The axial portion surrounds the annular baffle wall, and the annular baffle wall extends upward into the space enclosed by the axial portion to prevent falling sand from entering the through hole.
6. The sand-control structure according to any one of claims 1 to 4, characterized in that: The sand-blocking assembly also includes an annular baffle wall, which is disposed on the upper surface of the rotating device and surrounds the through hole. The annular baffle wall is located between the edge of the sand-blocking plate and the edge of the through hole to prevent falling sand from entering the through hole.
7. The sand-control structure according to claim 2, characterized in that: The outer wall of the sand outlet pipe has a connecting plate that protrudes outward, and the radial portion is fastened to the connecting plate by bolts.
8. The sand-control structure according to claim 1 or 2, characterized in that: The projection of the sand-blocking plate in the vertical direction covers the projection of the through hole in the vertical direction.
9. The sand-control structure according to any one of claims 1 to 4 and 7, characterized in that: The rotary device includes a rotary mechanism and a rotary disk. The rotary disk has the through hole. The rotary mechanism includes a base plate and a rotary support. The base plate is sleeved on the outer wall of the sand outlet pipe and serves as the bottom of the through hole. The rotary support surrounds the sand outlet pipe, supports the rotary disk, and drives the rotary disk to rotate.
10. The sand-control structure according to claim 9, characterized in that: It also includes a sand-throwing arm, which is mounted on the rotary mechanism and supported by the rotary table. The inlet of the sand-throwing arm is located above the sand outlet pipe to receive the sand thrown out from the sand outlet pipe.