Convenient operation type high pressure washing vehicle

Abstract

The utility model discloses a kind of high-pressure flush vehicles of convenient operation, including vehicle body, cab and car box, flush device is installed in car box, operating port is provided in the rear side of car box, roll-up door device that car box is also installed with operating port cooperation use, operating port upper end side portion is installed with door opening limiting device on the car box, operating port lower end side portion is installed with door closing retaining device on the car box, and the control end of door closing retaining device is located in cab;The opening and closing of roll-up door device will not occupy the external space of vehicle body, will not produce adverse effect to the travel of vehicle body in opening state, can be always in opening state and form stable keeping through door opening limiting device in the operation process, to help the rapid heat dissipation of heating component in car box, can be locked through door closing retaining device after closing, to carry out anti-theft protection to the component in car box, and need not additional key, convenient and reliable to use.

Description

Technical Field

[0001] This utility model relates to the technical field of vehicles for cleaning walls, roads, and ground, and in particular to a convenient high-pressure washing vehicle. Background Technology

[0002] High-pressure washing trucks are specialized vehicles that utilize high-pressure water jets for cleaning operations. They are widely used in municipal sanitation, industrial cleaning, road maintenance, and other fields. Based on their power source, they can be divided into electric and fuel-powered high-pressure washing trucks. Electric high-pressure washing trucks are increasingly popular due to their compact size, ease of operation, high mobility, relatively low cost, and energy efficiency. Electric high-pressure washing trucks are equipped with a vehicle-mounted water tank, high-pressure water pump, washing hose, and a hose reel mechanism, all enclosed within the truck's cargo box to protect the components and maintain a neat and aesthetically pleasing exterior.

[0003] To facilitate the operation and maintenance of the high-pressure water pump, washing hose, and reel mechanism, a hinged door is installed on the vehicle body. However, this door rotates at a certain angle when opening and closing, requiring a considerable amount of space outside the vehicle for operation, which significantly limits its use in confined spaces. Furthermore, since the door occupies external space when open, it must be kept closed during use to prevent unnecessary collisions with other objects, passing vehicles, or pedestrians, ensuring safe vehicle movement. In this situation, the high-pressure water pump is in a relatively sealed space. Although the vehicle body has ventilation holes, it is difficult to achieve rapid heat dissipation, which may affect the pump's long-term safe operation. In addition, a matching door lock needs to be installed on the door to lock it when not in use, thus preventing theft. The vehicle key is used to control the power supply of the washing vehicle and cannot be separated from the vehicle during use. Therefore, the unlocking key for the door lock needs to be stored separately from the vehicle key so that it can be used independently in the two lock positions. This results in the keys being scattered, which has the disadvantages of the door key being easy to lose and reducing the convenience of use. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a convenient high-pressure washing truck with a small opening and closing operation space, which can remain open during operation without creating safety hazards, helps to quickly dissipate heat inside and facilitates the operation of internal facilities.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a convenient high-pressure washing truck, including a vehicle body, on which a driver's cab and a cargo box are installed in sequence. A flushing device is installed inside the cargo box. An operating port is opened on the rear side of the cargo box. A roller shutter door device that works with the operating port is also installed on the cargo box. An opening limit device is installed on the cargo box at the upper side of the operating port. A closing retention device is installed on the cargo box at the lower side of the operating port. The control end of the closing retention device is located in the driver's cab.

[0006] As a preferred technical solution, the roller shutter door device includes a roller shutter door body, one end of which is fixed to a winding drum, and the winding drum is rotatably mounted on the inner wall of the vehicle body. The other end of the roller shutter door body is connected to a limiting door plate, and door rails are installed on the two vertical sides of the operating opening. The two ends of the limiting door plate are respectively located in the door rails.

[0007] As a preferred technical solution, guide rollers are also installed on the two side walls of the vehicle body, and the guide rollers are located between the roll-up drum and the rear wall of the vehicle body. When the roller shutter body is lowered, the two sides are respectively pressed and guided into the corresponding door track by the guide rollers.

[0008] As a preferred technical solution, the door closing device includes a door closing shaft fixedly installed on the outer surface of the limiting door panel, and both ends of the door closing shaft extend to the outer side of the corresponding door rail. A door closing hole is provided through the rear wall of the vehicle body corresponding to the end of the door closing shaft. A door closing claw is hinged on the inner wall of the vehicle body to limit the upward movement of the door closing shaft. When the roller shutter door body is closed, the door closing claw passes through the door closing hole and abuts against the top of the door closing shaft. An electric telescopic rod is connected to the door closing claw. The electric telescopic rod is connected to the power supply of the vehicle body and connected in series with a control switch. The control switch is installed in the driver's cab.

[0009] As a preferred technical solution, the door-closing retaining claw is provided with a mounting arm that is hinged to the electric telescopic rod and an arc-shaped retaining arm that contacts the outer wall of the door-closing retaining shaft, and the mounting arm is hinged to the vehicle body.

[0010] As a preferred technical solution, a door-closing retaining shaft support is fixedly installed on the vehicle body directly below the door-closing retaining claw, and the door-closing retaining shaft support is provided with a limiting shaft groove for contacting the outer wall of the door-closing retaining shaft.

[0011] As a preferred technical solution, a gap is formed between the door closing retaining shaft and the limiting door plate, and the door closing retaining shaft also serves as an operating handle for opening and closing the roller shutter door body.

[0012] As a preferred technical solution, the door opening limiting device includes a retaining shaft stop block movably installed on the vehicle body. When the roller shutter door body is open, the bottom end of the retaining shaft stop block abuts against the top end of the door closing retaining shaft.

[0013] As a preferred technical solution, the bottom of the retaining shaft stop is provided with a limiting arc groove that contacts the outer wall of the door retaining shaft.

[0014] As an improvement to the above technical solution, the vehicle body is divided into two relatively independent spaces, front and rear. The flushing device includes a vehicle-mounted water tank located in the front space of the vehicle body, and the water inlet of the vehicle-mounted water tank is set through the top wall of the vehicle body. A high-pressure water pump and a hose reel are fixedly installed in the space located in the rear of the vehicle body. A flushing hose is wound on the hose reel. The vehicle-mounted water tank is sequentially connected to the high-pressure water pump, the hose reel, and the flushing hose. The high-pressure water pump and the hose reel can be controlled through the operating port.

[0015] Due to the adoption of the above technical solution, this utility model has the following beneficial effects: when the operating port is opened and closed by the roller shutter door device, it will not occupy the external space of the vehicle body and requires little operating space. When it is open, it will not adversely affect the movement of the vehicle body. Moreover, it can always be in the open state during operation and can be stably maintained by the door opening limit device, which helps to quickly dissipate heat from the heat-generating components inside the vehicle body. After the roller shutter door device is closed, it can be locked by the door closing retention device to protect the components inside the vehicle body from theft. Furthermore, no additional key is required, making it convenient and reliable to use. Attached Figure Description

[0016] The following figures are intended only to illustrate and explain the present invention and do not limit the scope of the present invention. Wherein:

[0017] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the rear roller shutter door device in the closed state according to an embodiment of the present invention;

[0019] Figure 3 This is a structural schematic diagram of the rear roller shutter door device in the open state according to an embodiment of this utility model;

[0020] Figure 4 This is a side cross-sectional schematic diagram of the roller shutter door device according to an embodiment of this utility model;

[0021] Figure 5 This is a schematic diagram showing the changing states of the door closing device according to an embodiment of the present invention;

[0022] In the diagram: 1-Vehicle body; 2-Cab; 3-Cargo box; 4-Vehicle water tank; 5-Cover; 6-High-pressure water pump; 7-Hose reel; 8-Operating port; 9-Roller shutter body; 10-Roller drum; 11-Limiting door panel; 12-Door rail; 13-Guide roller; 14-Door closing retaining shaft; 15-Door closing retaining hole; 16-Door closing retaining claw; 161-Mounting arm; 162-Arc-shaped retaining arm; 17-Electric telescopic rod; 18-Door closing retaining shaft support; 19-Retaining shaft stop. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the following detailed description, only certain exemplary embodiments of the present invention are described by way of illustration. Undoubtedly, those skilled in the art will recognize that various modifications can be made to the described embodiments without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

[0024] like Figures 1 to 5 As shown, a convenient high-pressure washing truck includes a vehicle body 1, on which a driver's cab 2 and a cargo box 3 are sequentially mounted. A flushing device is installed inside the cargo box 3, which is divided into two relatively independent spaces, front and rear, separated by a pole or segmented panels. The flushing device includes a vehicle-mounted water tank 4 located in the front space of the cargo box 3, with its water inlet penetrating the top wall of the cargo box 3. The vehicle body 1 is an electric vehicle body 1, simple to operate, flexible, and highly maneuverable. To minimize the overall weight of the washing truck, reduce power consumption, and maximize the efficient use of electrical energy, the vehicle-mounted water tank 4 is generally made of plastic, making it lightweight, sturdy, and durable. Furthermore, by dividing the cargo box 3 to separate the vehicle-mounted water tank 4, damage during frequent operation or maintenance of other components can be avoided. A detachable cover 5 can be fitted onto the water inlet to seal the water in the vehicle-mounted water tank 4, preventing splashing during bumpy road conditions.

[0025] The flushing device also includes a high-pressure water pump 6 and a hose reel 7 fixedly installed in the space behind the vehicle body 3. The hose reel 7 has a flushing hose wound up. The vehicle-mounted water tank 4 is sequentially connected to the high-pressure water pump 6, the hose reel 7, and the flushing hose. A control valve is also provided on the connecting water pipe of the above components. The high-pressure water pump 6 is also equipped with conventional auxiliary components such as a pressure gauge to achieve adjustable and controllable water pressure. A through hole is provided on the rear wall of the vehicle body 3 to facilitate the extension of the flushing hose. Heat dissipation holes are arranged through the vehicle body 3 to achieve timely cooling of the high-pressure water pump 6. The structure of the hose reel 7 is well known to those skilled in the art and will not be described in detail here.

[0026] An operating port 8 is provided on the rear side of the vehicle body 3. The high-pressure water pump 6 and the hose reel 7 can be controlled through the operating port 8. The port is at a suitable height and is easy to use. Furthermore, the operating port 8 allows for rapid cooling of the high-pressure water pump 6. The vehicle body 3 is also equipped with a roller shutter door device that works in conjunction with the operating port 8, allowing for the opening and closing of the operating port 8. In this embodiment, the operating port 8 has a small area, therefore the overall structure of the roller shutter door device is also small, and a manually operated structure is sufficient.

[0027] Specifically, the roller shutter door device includes a roller shutter door body 9. One end of the roller shutter door body 9 is fixed to a retractable roller drum 10, and the retractable roller drum 10 is rotatably mounted on the inner wall of the vehicle body 3. The other end of the roller shutter door body 9 is connected to a limiting door plate 11. Door rails 12 are installed on the two vertical sides of the operating opening 8. The two ends of the limiting door plate 11 are respectively located within the door rails 12 to prevent the roller shutter door body 9 from separating from the door rails 12 due to excessive retraction. Using the roller shutter door device to open and close the operating opening 8 does not occupy additional external space of the vehicle body 1 during use. Furthermore, the roller shutter door body 9 is stable after retraction and will not cause any impact on objects, vehicles, or pedestrians near the vehicle body 1. It is more suitable for use in relatively crowded or narrow areas, and there is no need to frequently open and close the operating opening 8 during use, making it convenient to use.

[0028] To ensure that the roller shutter body 9 can move smoothly in the door track 12 during opening and closing, guide rollers 13 are also installed on the two side walls of the carriage 3. The guide rollers 13 are located between the roll-up drum 10 and the rear wall of the carriage 3. When the roller shutter body 9 is lowered, the two sides are pressed and guided into the corresponding door track 12 by the guide rollers 13 to assist the turning of the roller shutter body 9.

[0029] An opening limit device is installed on the upper side of the vehicle body 3 of the operating port 8 to limit the upward movement of the limiting door plate 11, preventing the roller shutter door body 9 from over-rolling in and improving the stability of the limiting door plate 11. A closing retaining device is installed on the lower side of the vehicle body 3 of the operating port 8, and the control end of the closing retaining device is located in the driver's cab 2. The closing retaining device enables the roller shutter door body 9 to maintain the closure of the operating port 8, thereby sealing the vehicle body 3 and preventing the theft of important internal components such as the high-pressure water pump 6.

[0030] The door closing device includes a door closing shaft 14 fixedly installed on the outer surface of the limiting door plate 11. A gap is formed between the door closing shaft 14 and the limiting door plate 11. The door closing shaft 14 also serves as an operating handle for opening and closing the roller shutter door body 9, and is used to lift or pull up to realize the rolling or lowering of the roller shutter door body 9. Both ends of the door-closing retaining shaft 14 extend to the outer sides of the corresponding door rails 12. A door-closing retaining hole 15 is provided at the end of the rear wall of the vehicle body 3 corresponding to the door-closing retaining shaft 14. A door-closing retaining claw 16 is hinged to the inner wall of the vehicle body 3 to restrict the upward movement of the door-closing retaining shaft 14. When the roller shutter door body 9 is closed, the door-closing retaining claw 16 passes through the door-closing retaining hole 15 and abuts against the top of the door-closing retaining shaft 14. An electric telescopic rod 17 is connected to the door-closing retaining claw 16. The electric telescopic rod 17 is connected to the power supply of the vehicle body 1 and is connected in series with a control switch, which is installed in the driver's cab 2. Through the electric telescopic rod 17 and the control switch, the door-closing retaining claw 16 is electrically controlled, eliminating the need for a lock or key on the roller shutter door device, making it more convenient and reliable to use.

[0031] Specifically, the door-closing retaining claw 16 is provided with a mounting arm 161 hinged to the electric telescopic rod 17 and an arc-shaped retaining arm 162 contacting the outer wall of the door-closing retaining shaft 14, and the mounting arm 161 is hinged to the vehicle body 3. Figure 5As shown, when the roller shutter body 9 is in its lower state, the operating opening 8 is closed, and the closing retaining shaft 14 is located inside the arc-shaped retaining arm 162, which limits and holds the closing retaining shaft 14, making it difficult for it to move upward and preventing the roller shutter body 9 from opening. When it is necessary to open the operating opening 8 by rolling up the roller shutter body 9, the electric telescopic rod 17 is energized and extended using the control switch, pushing the mounting arm 161 downward. After the mounting arm 161 and the arc-shaped retaining arm 162 rotate synchronously, the holding and limiting of the closing retaining shaft 14 is released, and the closing retaining shaft 14 can be lifted up. When it is necessary to close the operating opening 8 again, the closing retaining shaft 14 is pulled down to the lower limit position, and the electric telescopic rod 17 is de-energized using the control switch, causing it to automatically return to its original position. Then, the closing retaining claw 16 presses down against the closing retaining shaft 14, holding and limiting it, so the roller shutter body 9 cannot be opened.

[0032] A door-closing shaft support 18 is fixedly installed on the vehicle body 1 directly below the door-closing retaining claw 16. The door-closing retaining shaft support 18 is provided with a limiting shaft groove for contacting the outer wall of the door-closing retaining shaft 14. The door-closing retaining shaft support 18 cooperates with the arc-shaped retaining arm 162 to hold the door-closing retaining shaft 14 in place, making it difficult for it to move up and down, thereby improving the stability of the roller shutter door body 9 in the closed state and preventing vibration during driving.

[0033] The door opening limiting device includes a retaining shaft stop 19 movably mounted on the vehicle body 3. When the roller shutter door body 9 is open, the bottom end of the retaining shaft stop 19 abuts against the top end of the closing retaining shaft 14. Specifically, an elongated hole can be provided through the vehicle body 3, allowing the retaining shaft stop 19 to slide back and forth along the hole. When the roller shutter door body 9 is open, the retaining shaft stop 19 is slid towards the roller shutter door body 9, forming abutment and limiting with the closing retaining shaft 14. When the roller shutter door body 9 needs to be closed, it is slid away from the roller shutter door body 9 to release the limiting on the closing retaining shaft 14, allowing the roller shutter door body 9 to be smoothly pulled down. The bottom of the retaining shaft stop 19 has a limiting arc groove that contacts the outer wall of the closing retaining shaft 14 to adapt to the arc surface of the closing retaining shaft 14, making the contact area larger and more stable. Figure 2 and Figure 3 It can be seen that both the door closing retaining device and the door opening limiting device are configured in two sets, and are symmetrically distributed on both sides of the operating port 8, so that the door closing retaining shaft 14 is subjected to uniform force and ensures the effectiveness of use. Furthermore, a certain amount of damping can be formed on the contact surface between the retaining shaft stop 19 and the elongated hole using a rubber sleeve or similar material, to prevent it from shifting due to vibration during the movement of the vehicle body 1, thus making the retaining performance of the door closing retaining shaft 14 more stable and reliable.

[0034] The description of this utility model is given for illustrative and descriptive purposes only, and is not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the utility model, and to enable those skilled in the art to understand the utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A convenient high-pressure washing truck, comprising a vehicle body, on which a driver's cab and a cargo box are sequentially mounted, characterized in that: The vehicle body is equipped with a flushing device, and an operating port is provided on the rear side of the vehicle body. A roller shutter door device that works in conjunction with the operating port is also installed on the vehicle body. An opening limit device is installed on the vehicle body at the upper side of the operating port, and a closing retention device is installed on the vehicle body at the lower side of the operating port. The control terminal of the closing retention device is located in the driver's cab.

2. The convenient high-pressure washing vehicle as described in claim 1, characterized in that: The roller shutter door device includes a roller shutter door body, one end of which is fixed to a winding drum, and the winding drum is rotatably mounted on the inner wall of the vehicle body. The other end of the roller shutter door body is connected to a limiting door plate. Door rails are installed on the two vertical sides of the operating opening, and the two ends of the limiting door plate are respectively located in the door rails.

3. The convenient high-pressure washing vehicle as described in claim 2, characterized in that: Guide rollers are also installed on the two side walls of the carriage, and the guide rollers are located between the roll-up drum and the rear wall of the carriage. When the roller shutter body is lowered, the two sides are respectively pressed and guided into the corresponding door track by the guide rollers.

4. The convenient high-pressure washing vehicle as described in claim 2, characterized in that: The door closing device includes a door closing shaft fixedly installed on the outer surface of the limiting door panel, and both ends of the door closing shaft extend to the outer side of the corresponding door rail. A door closing hole is provided through the rear wall of the vehicle body corresponding to the end of the door closing shaft. A door closing claw is hinged on the inner wall of the vehicle body to limit the upward movement of the door closing shaft. When the roller shutter door body is closed, the door closing claw passes through the door closing hole and abuts against the top of the door closing shaft. An electric telescopic rod is connected to the door closing claw. The electric telescopic rod is connected to the power supply of the vehicle body and connected in series with a control switch. The control switch is installed in the driver's cab.

5. The convenient high-pressure washing vehicle as described in claim 4, characterized in that: The door-closing retaining claw is provided with a mounting arm that is hinged to the electric telescopic rod and an arc-shaped retaining arm that contacts the outer wall of the door-closing retaining shaft, and the mounting arm is hinged to the vehicle body.

6. The convenient high-pressure washing vehicle as described in claim 4, characterized in that: A door-closing shaft support is fixedly installed on the vehicle body directly below the door-closing retaining claw, and the door-closing retaining shaft support is provided with a limiting shaft groove for contacting the outer wall of the door-closing retaining shaft.

7. The convenient high-pressure washing vehicle as described in claim 4, characterized in that: A gap is formed between the door closing retaining shaft and the limiting door panel, and the door closing retaining shaft also serves as an operating handle for opening and closing the roller shutter door body.

8. The convenient high-pressure washing vehicle as described in claim 4, characterized in that: The door opening limit device includes a retaining shaft stop block that is movably installed on the vehicle body. When the roller shutter door body is open, the bottom end of the retaining shaft stop block abuts against the top end of the door closing retaining shaft.

9. The convenient high-pressure washing vehicle as described in claim 8, characterized in that: The bottom of the retaining shaft stop is provided with a limiting arc groove that contacts the outer wall of the door retaining shaft.

10. The convenient high-pressure washing vehicle as described in claim 1, characterized in that: The vehicle body is divided into two relatively independent spaces, front and rear. The flushing device includes a vehicle-mounted water tank located in the front space of the vehicle body, and the water inlet of the vehicle-mounted water tank is set through the top wall of the vehicle body. A high-pressure water pump and a hose reel are fixedly installed in the space located in the rear of the vehicle body. A flushing hose is wound on the hose reel. The vehicle-mounted water tank is connected to the high-pressure water pump, the hose reel, and the flushing hose in sequence. The high-pressure water pump and the hose reel can be controlled through the operating port.

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