A urea nozzle test cleaning trolley

Abstract

The utility model discloses a kind of urea nozzle test cleaning trolley, by setting test cleaning component, including L-type support, urea nozzle and collection container, the working condition of urea nozzle is simulated on trolley, external cleaning agent, and then realize the effect of quickly cleaning urea nozzle, by repeatedly simulating urea nozzle work, observe the injection state of collection container inner wall, judge whether urea nozzle is cleaned successfully or whether it needs to be replaced.Compared with prior art, the utility model is integrated by low cost design, so that maintenance personnel can efficiently complete urea nozzle cleaning+test series of work, it is convenient for on-site operation, shorten the repair time, improve fault handling rate, reduce the cost of spare parts replacement.

Description

Technical Field

[0001] This utility model relates to the field of urea nozzle testing and cleaning, specifically to a urea nozzle testing and cleaning trolley. Background Technology

[0002] Urea injectors are installed in vehicle exhaust pipes to reduce emissions of harmful gases such as carbon monoxide in the exhaust. However, vehicles in the factory are often driven at low speeds with high throttle, causing the urea injectors to operate continuously. This easily leads to injector crystallization and blockage, or causes the injection pattern to become a straight line instead of normal atomization, resulting in torque limitation and vehicle malfunction. In this case, the entire urea injector assembly needs to be replaced; however, frequent replacements increase vehicle operating costs. Cleaning urea injectors typically involves air blowing or flushing. Air blowing uses a high-pressure air gun to blow air backwards from the injector to remove crystallized impurities. While simple, it is difficult to remove stubborn crystals that have been present for a long time or are too large, presenting a drawback. Flushing requires disassembling valves and flow channels and repeatedly cleaning them with a cleaning agent. It provides better cleaning but is time-consuming, and the extensive disassembly may increase the risk of damaging the urea injector. Furthermore, even after cleaning, urea injectors may still be clogged or damaged. Directly reinstalling them in the vehicle for testing may delay repairs due to repeated disassembly and reassembly, reducing the fault resolution rate. Therefore, there is an urgent need for a new device that can clean urea nozzles at low cost while also providing an integrated function for on-site testing. Utility Model Content

[0003] Purpose of the utility model: To solve the problems mentioned in the background art, this utility model discloses a urea nozzle testing and cleaning cart. By integrating testing and cleaning components on the cart to simulate the working state of the urea nozzle, and supplementing it with cleaning agent sprayed into the cleaning bottle, the power is finally turned on to observe the spraying situation of the urea nozzle on the collection container, thus realizing integrated testing and cleaning.

[0004] Technical solution:

[0005] This utility model discloses a urea nozzle testing and cleaning cart. The cart body houses a battery, and the upper surface of the cart body is equipped with a testing and cleaning assembly and a switch connected to the battery. The testing and cleaning assembly includes an L-shaped bracket, a urea nozzle, and a collection container. The L-shaped bracket is fixedly installed on the upper surface of the cart body, and the urea nozzle is detachably installed on the horizontal plane of the L-shaped bracket. The urea nozzle includes a wiring harness interface, a urea pipe connector, and a nozzle. The wiring harness interface is electrically connected to the switch via a wire passing through the cart body, and the urea pipe connector is connected to the nozzle of a detergent bottle via a quick-connect hose passing through the cart body. The detergent bottle is placed in a bottle holder welded to the side wall of the cart body. The collection container is fixedly connected to the vertical surface of the L-shaped bracket. A first through hole is formed on the vertical surface, and a second through hole coaxial with the first through hole is formed on the side of the collection container. The nozzle passes through the first and second through holes and is embedded in the collection container.

[0006] Furthermore, the vehicle body is welded from iron plates, and four omnidirectional wheels are installed at the bottom of the vehicle body.

[0007] Furthermore, the vehicle body has a side door on one side wall, and the side door is hinged to this side wall.

[0008] Furthermore, a handrail is fixedly installed on one side wall of the vehicle body where there is no side door.

[0009] Furthermore, a storage compartment is welded to the upper surface of the vehicle body, and the storage compartment stores replacement parts for the urea nozzle and installation / removal tools.

[0010] Furthermore, the bottom surface of the vehicle body is covered with a rubber pad.

[0011] Furthermore, the collection container is made of a transparent material, such as plastic, glass, or resin.

[0012] Beneficial effects:

[0013] 1. This utility model simulates the working state of a urea nozzle by integrating a testing and cleaning component. After installing the urea nozzle to be tested and cleaned, the power can be turned on for cleaning testing, which facilitates on-site operation, shortens maintenance time, lowers the operating threshold, and further improves the efficiency of fault handling.

[0014] 2. This utility model utilizes scrap iron plates to assemble a trolley, adding casters and handrails to facilitate pushing and moving while further reducing the cost of urea nozzle testing and cleaning.

[0015] 3. This utility model incorporates a storage compartment on the trolley, which holds replacement parts and disassembly tools, making it easier for maintenance personnel to disassemble and assemble the urea nozzle, thus improving testing and cleaning efficiency. It also features a transparent testing container, allowing maintenance personnel to more clearly observe the atomization spray effect of the nozzle after cleaning.

[0016] 4. The quick-connect hose and wire of this utility model are designed to pass through the vehicle body, so that the trolley is protected from exposure and collision during movement and cleaning tests, reducing the risk of circuit failure.

[0017] 5. This utility model lays a rubber pad on the bottom surface of the vehicle body to reduce the impact and collision of the battery during the movement of the vehicle, thereby reducing the risk of battery failure. Attached Figure Description

[0018] Figure 1 This is a general structural diagram of the present invention;

[0019] Figure 2 Exploded view of the test cleaning component of this utility model

[0020] Figure 3 This is a schematic diagram of the urea nozzle of this utility model;

[0021] In the diagram, 1 is the vehicle body, 11 is the side door, 12 is the caster wheel, 13 is the storage compartment, 14 is the handrail, 2 is the test cleaning assembly, 21 is the L-shaped bracket, 211 is the first through hole, 22 is the urea nozzle, 221 is the wiring harness interface, 222 is the urea pipe connector, 223 is the nozzle, 23 is the collection container, 231 is the second through hole, 3 is the switch, and 4 is the bottle rack. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0023] Example 1

[0024] like Figure 1 As shown, this utility model discloses a urea nozzle testing and cleaning trolley, including a trolley body 1, a 90-type battery inside the trolley body 1, and a testing and cleaning assembly 2 and a switch 3 connected to the battery on the upper surface of the trolley body 1.

[0025] like Figure 2 and Figure 3As shown, the test cleaning assembly 2 includes an L-shaped bracket 21, a urea nozzle 22, and a collection container 23. The L-shaped bracket 21 is fixedly installed on the upper surface of the vehicle body 1, and the urea nozzle 22 is detachably installed on the horizontal plane of the L-shaped bracket 21. The urea nozzle 22 includes a wiring harness interface 221, a urea pipe connector 222, and a nozzle 223. The wiring harness interface 221 is electrically connected to the switch 3 via a wire passing through the vehicle body. The urea pipe connector 222 is connected to the nozzle of the detergent bottle via a quick-connect hose passing through the vehicle body. The quick-connect hose and wire are designed to pass through the vehicle body, preventing them from being exposed and bumped during the movement and cleaning test of the vehicle, thus reducing the risk of circuit failure. The detergent bottle is placed in a bottle holder 4 welded to the side wall of the vehicle body 1. The collection container 23 is fixedly connected to the vertical surface of the L-shaped bracket 21. A first through hole 211 is opened on the vertical surface, and a second through hole 231 coaxial with the first through hole is opened on the side of the collection container 23. The nozzle 223 passes through the first through hole 211 and the second through hole 231 and is embedded in the collection container 23.

[0026] In this embodiment, the vehicle body 1 is welded from scrap iron plates, forming a rectangular iron box 55cm long and 45cm wide. Four casters 12 are installed at the bottom of the vehicle body 1, facilitating easy movement of the vehicle to designated locations for testing and cleaning.

[0027] A side door 11 is provided on one side wall of the vehicle body, and the side door 11 is hinged to this side wall. When the battery is depleted and needs to be recharged, the side door can be opened to remove or place the battery, allowing the testing and cleaning assembly 2 to continue operating. A handrail 14 is fixedly installed on the side wall of the vehicle body 1 where there is no side door 11. The handrail is used to push the trolley forward. In this embodiment, the handrail 14 is designed as an "inverted U-shape". While pushing the trolley forward, the handrail 14 can also act as a hanging rack for hanging a series of items such as rags, wires, and hoses.

[0028] The upper surface of the vehicle body 1 is also welded with a storage compartment 13, which stores replacement parts and installation / removal tools for the urea nozzle 22, making it easier for maintenance personnel to disassemble and assemble the urea nozzle and improve testing and cleaning efficiency. A rubber pad is laid on the inner bottom surface of the vehicle body 1 to reduce bumps and impacts to the battery during vehicle movement, thus lowering the risk of battery failure.

[0029] In this embodiment, the collection container 23 is a transparent plastic bottle. The atomization of urea after being sprayed through the plastic can be clearly observed, thereby determining the test cleaning results.

[0030] The specific usage process of this utility model is as follows:

[0031] The staff removed the urea nozzle 22 from the vehicle and used the tools in the storage compartment 13 to install it on the L-shaped bracket 21. The nozzle 223 of the urea nozzle 22 was aligned with the first through hole 211 on the vertical surface of the L-shaped bracket 21 and the second through hole 231 on the side of the collection container 23, embedding it into the collection container 23. Then, the wiring harness interface 221 of the urea nozzle 22 was connected to power, and the urea tube connector 222 was connected to the nozzle of the detergent bottle in the bottle holder 4 via a quick-connect hose. At this point, the test cleaning assembly 2 was assembled. Switch 3 was turned on, opening the solenoid valve inside the urea nozzle 22. The staff pressed the nozzle of the detergent bottle, and the pressure inside the detergent bottle propelled the cleaning agent into the urea tube connector 222, achieving the cleaning function. Since the test cleaning assembly 2 was powered on and simulating the working state of the urea nozzle, the cleaning agent carrying dirt was sprayed into the collection container 23 through the nozzle. This process was repeated three times or more. At this point, staff can observe the inner wall of the collection container 23. If the sprayed cleaning agent gradually becomes clear and appears as an atomized spray on the inner wall of the collection container, the urea nozzle cleaning test is complete. If the sprayed cleaning agent is difficult to form an atomized shape, the urea nozzle may be damaged and needs to be replaced in time.

[0032] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to the embodiments will be readily apparent to those skilled in the art. The general principles of the present invention may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention should not be limited to the embodiments shown herein, but should cover the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A urea nozzle testing and cleaning cart, comprising a cart body (1), characterized in that, The vehicle body (1) is equipped with a battery. The upper surface of the vehicle body (1) is provided with a test cleaning assembly (2) and a switch (3) connected to the battery. The test cleaning assembly (2) includes an L-shaped bracket (21), a urea nozzle (22), and a collection container (23). The L-shaped bracket (21) is fixedly installed on the upper surface of the vehicle body (1), and the urea nozzle (22) is detachably installed on the horizontal plane of the L-shaped bracket (21). The urea nozzle (22) includes a wiring harness interface (221), a urea pipe connector (222), and a nozzle (223). The wiring harness interface (221) is connected to the battery via... The wires running through the vehicle body are electrically connected to the switch (3). The urea pipe connector (222) is connected to the nozzle of the detergent bottle through a quick-connect hose running through the vehicle body. The detergent bottle is placed in the bottle rack (4) welded to the side wall of the vehicle body (1). The collection container (23) is fixedly connected to the vertical surface of the L-shaped bracket (21). The vertical surface has a first through hole (211). The side of the collection container (23) has a second through hole (231) coaxial with the first through hole. The nozzle (223) passes through the first through hole (211) and the second through hole (231) and is embedded in the collection container (23).

2. The urea nozzle testing and cleaning cart according to claim 1, characterized in that, The vehicle body (1) is welded from iron plates, and four universal wheels (12) are installed at the bottom of the vehicle body (1).

3. The urea nozzle testing and cleaning cart according to claim 1, characterized in that, The vehicle body has a side door (11) on one side wall, and the side door (11) is hinged to the side wall.

4. The urea nozzle testing and cleaning cart according to claim 3, characterized in that, The vehicle body (1) does not have a side door (11), but a handrail (14) is fixedly installed on one side wall.

5. The urea nozzle testing and cleaning cart according to claim 1, characterized in that, A storage compartment (13) is welded to the upper surface of the vehicle body (1), and the storage compartment (13) contains a replacement part for the urea nozzle (22) and a tool for installation and removal.

6. The urea nozzle testing and cleaning cart according to claim 1, characterized in that, The inner bottom surface of the vehicle body (1) is covered with rubber pads.

7. The urea nozzle testing and cleaning cart according to claim 1, characterized in that, The collection container (23) is made of a transparent material, which may be plastic, glass or resin.

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