A rear-mounted spreading device for a manure suction vehicle

Abstract

This utility model discloses a rear-mounted spreading device for a septic tank truck, relating to the field of septic tank trucks. The rear-mounted spreading device includes a sewage pipe, one end of which is connected to the septic tank truck. A spray pipe is installed at the other end of the sewage pipe, and a splash guard is fixedly installed on the outside of the spray pipe. The spray pipe consists of a pipe body and a nozzle. The end of the pipe body is inserted into the interior of the splash guard and fixedly connected to the nozzle. The end of the nozzle is inclined upwards towards the inner top wall of the splash guard, and the splash guard is inclined downwards relative to the pipe body. This rear-mounted spreading device for septic tank trucks features a closed space inside the splash guard. The angled design of the nozzle end inclined upwards towards the inner top wall of the splash guard confines the sewage within a preset range, completely preventing splashing pollution. Simultaneously, the downward inclination of the splash guard relative to the pipe body guides residual sewage from the inner wall for smooth discharge, preventing blockage and residue.

Description

Technical Field

[0001] This utility model relates to the field of septic tank truck technology, specifically to a rear-mounted spreading device for a septic tank truck. Background Technology

[0002] Currently, when vacuum trucks are used for sewage discharge or agricultural fertilization, traditional devices often directly connect to simple nozzles via a discharge pipe for spraying. Due to the lack of effective restraint and guiding structures, sewage is prone to widespread splashing under high pressure, polluting not only the truck body and the surrounding environment but also potentially affecting the efficiency and effectiveness of agricultural fertilization due to uneven and dispersed spraying. Furthermore, while some devices have attempted to add shielding components, improper angle design often leads to problems such as sewage residue, clogging, or limited spraying range, failing to meet actual operational needs. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a rear-mounted spreading device for a septic tank truck. This device solves the problems of easy splashing of sewage, uneven spreading, and residue and clogging caused by unreasonable structural design in traditional spreading devices.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a rear-mounted spreading device for a septic tank truck, comprising a sewage pipe, one end of which is connected to the septic tank truck, and a spray pipe installed at the other end of which a splash guard is fixedly installed on the outside of the spray pipe. The spray pipe consists of a pipe body and a nozzle. The end of the pipe body is inserted into the inside of the splash guard and fixedly connected to the nozzle. The end of the nozzle is inclined upward toward the inner top wall of the splash guard, and the splash guard is inclined downward relative to the pipe body.

[0005] Preferably, the end of the nozzle forms a 10° angle with the inner top wall of the splash guard.

[0006] Preferably, the splash-proof box forms a 5° angle with the horizontal plane.

[0007] Preferably, the splashproof box consists of a back panel, an upper panel, a lower panel, and two side panels. The back panel is fixedly connected to the tube body, the upper panel, the lower panel, and the two side panels. The upper panel is fixedly connected to the top of the two side panels, and the lower panel is fixedly connected to the bottom of the two side panels.

[0008] Preferably, the cross-sections of the upper and lower enclosures are both set to a sector shape with an arc of 55°.

[0009] Preferably, a straight-through ball valve is installed between the end of the sewage pipe and the pipe body.

[0010] Its beneficial effects are as follows:

[0011] 1. The rear-mounted spreading device of this vacuum truck has a closed space inside the splash guard. The nozzle tip is designed to be angled upwards towards the inner top wall of the splash guard, which can limit the sewage within a preset range and completely avoid splashing pollution. At the same time, the splash guard is set to be angled downwards relative to the pipe body, which can guide the residual sewage on the inner wall to be discharged smoothly and avoid blockage and residue.

[0012] 2. The rear-mounted spreading device of this vacuum truck features a 55° arc fan-shaped cross-section on the upper and lower panels, which allows the sewage sprayed onto the upper panel through the nozzle to form a uniform fan-shaped surface, improving the spreading effect. It is especially suitable for agricultural fertilization scenarios. The straight-through ball valve can flexibly control the sewage flow and on / off state. The overall structure is simple, easy to install and maintain, and compatible with various vacuum trucks. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the tube body and splash guard of this utility model.

[0016] Figure 3 This is a plan view of the upper panel of this utility model.

[0017] In the diagram: 1. Drain pipe; 2. Spray pipe; 21. Pipe body; 22. Nozzle; 3. Splash shield; 31. Back panel; 32. Upper panel; 33. Lower panel; 34. Side panel; 4. Straight-through ball valve. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0020] This utility model discloses a rear-mounted spreading device for a septic tank truck, according to the attached... Figure 1 As shown, it includes a sewage pipe 1, one end of which is connected to a vacuum truck, and the other end of the sewage pipe 1 is equipped with a spray pipe 2. A splash guard 3 is fixedly installed on the outside of the spray pipe 2. The spray pipe 2 consists of a pipe body 21 and a nozzle 22. The end of the pipe body 21 is inserted into the inside of the splash guard 3 and fixedly connected to the nozzle 22. The end of the nozzle 22 is inclined upward toward the inner top wall of the splash guard 3, and the splash guard 3 is inclined downward relative to the pipe body 21.

[0021] The splash shield 3 has a closed space inside. The end of the nozzle 22 is angled upward toward the inner top wall of the splash shield 3, which can limit the sewage within a preset range and completely avoid splashing pollution. At the same time, the splash shield 3 is tilted downward relative to the tube 21, which can guide the residual sewage on the inner wall to be discharged smoothly and avoid blockage and residue.

[0022] The end of nozzle 22 forms a 10° angle with the inner top wall of splash shield 3. This 10° angle design ensures that the waste liquid sprayed from nozzle 22 accurately impacts the upper enclosure 32, using the impact force to convert it into a uniform fan-shaped spreading trajectory, avoiding the dispersion or concentrated accumulation of waste liquid caused by direct spraying.

[0023] The splash guard 3 forms a 5° angle with the horizontal plane. This 5° angle allows gravity to guide residual wastewater from the inner wall of the splash guard 3 out along the lower enclosure 33, preventing corrosion or blockage caused by wastewater accumulation and ensuring long-term stable operation of the device.

[0024] According to the appendix Figure 1-2 As shown, the splashproof box 3 further comprises a back plate 31, an upper enclosure plate 32, a lower enclosure plate 33, and two side plates 34. The back plate 31 is fixedly connected to the tube body 21, the upper enclosure plate 32, the lower enclosure plate 33, and the two side plates 34. The upper enclosure plate 32 is fixedly connected to the top of the two side plates 34, and the lower enclosure plate 33 is fixedly connected to the bottom of the two side plates 34.

[0025] The back panel 31 closes the rear end of the device, and the upper enclosure 32, lower enclosure 33 and side panel 34 form an enclosing space, leaving only the front outlet, which physically blocks the splash path of the sewage in the non-spraying direction.

[0026] According to the appendix Figure 3 As shown, the cross-sections of both the upper enclosure 32 and the lower enclosure 33 are set as fan-shaped sections with an arc of 55°. Specifically, the cross-sections of the upper enclosure 32 and the lower enclosure 33 are fan-shaped sections with an arc of 55°. This fan-shaped structure, combined with the spray angle of the nozzle 22, can confine the waste liquid within a specific width range, while the arc guiding the spray makes the distribution more uniform, making it suitable for scenarios requiring precise covering, such as farmland.

[0027] According to the appendix Figure 1As shown, a straight-through ball valve 4 is further installed between the end of the sewage pipe 1 and the pipe body 21. By opening and closing the valve, the flow rate and spray pressure of the sewage can be precisely controlled to adapt to different application requirements, such as adjusting the amount per acre when applying fertilizer. At the same time, the pipeline can be shut off when not in operation to prevent leakage.

[0028] Working principle: One end of the sewage pipe 1 is connected to the tank outlet of the vacuum truck through a flange, and the other end is connected to the pipe body 21 of the spray pipe 2 through a straight ball valve 4, ensuring that all interfaces are sealed.

[0029] Slowly open the straight-through ball valve 4 and observe the spraying status of the nozzle 22: the sewage should enter the nozzle 22 along the pipe 21 and impact the upper enclosure 32 of the splash box 3 at a 10° angle. Guided by the 55° fan-shaped upper enclosure 32 and lower enclosure 33, it forms a uniform fan-shaped spray that exits from the front outlet of the splash box 3. If the spraying range or flow rate does not meet the requirements, it can be optimized by adjusting the opening of the straight-through ball valve 4.

[0030] Under pressure, the sewage in the tank enters the nozzle 22 through the drain pipe 1, the straight ball valve 4, and the pipe body 21 in sequence. After being sprayed onto the upper enclosure plate 32, it is spread to the target area through the outlet of the splash box 3 along a fan-shaped trajectory.

[0031] During operation, the closed structure of the splash guard 3 prevents the sewage from splashing onto the vehicle body or side. The 5° tilt angle allows a small amount of sewage adhering to the inner wall to flow out along the lower panel 33, avoiding accumulation.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A rear-mounted spreading device for a septic tank truck, comprising a sewage pipe (1), one end of which is connected to the septic tank truck, characterized in that, The other end of the sewage pipe (1) is equipped with a spray pipe (2), and a splash shield (3) is fixedly installed on the outside of the spray pipe (2). The spray pipe (2) consists of a pipe body (21) and a nozzle (22). The end of the pipe body (21) is inserted into the inside of the splash shield (3) and fixedly connected to the nozzle (22). The end of the nozzle (22) is inclined upward toward the inner top wall of the splash shield (3), and the splash shield (3) is inclined downward relative to the pipe body (21).

2. The rear-mounted spreading device for a vacuum truck according to claim 1, characterized in that, The end of the nozzle (22) forms a 10° angle with the inner top wall of the splash shield (3).

3. The rear-mounted spreading device for a vacuum truck according to claim 1, characterized in that, The splash guard (3) forms a 5° angle with the horizontal plane.

4. The rear-mounted spreading device for a vacuum truck according to claim 1, characterized in that, The splashproof box (3) is composed of a back plate (31), an upper enclosure plate (32), a lower enclosure plate (33) and two side plates (34). The back plate (31) is fixedly connected to the tube body (21), the upper enclosure plate (32), the lower enclosure plate (33) and the two side plates (34). The upper enclosure plate (32) is fixedly connected to the top of the two side plates (34), and the lower enclosure plate (33) is fixedly connected to the bottom of the two side plates (34).

5. A rear-mounted spreading device for a vacuum truck according to claim 4, characterized in that, The cross-sections of the upper panel (32) and the lower panel (33) are both set to a sector shape with an arc of 55°.

6. A rear-mounted spreading device for a vacuum truck according to claim 1, characterized in that, A straight-through ball valve (4) is installed between the end of the sewage pipe (1) and the pipe body (21).

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