Urea pipe with pressure sensor

Abstract

The utility model relates to a urea pipe with a pressure sensor, which comprises a rubber urea pipeline, a lead pipe and a nylon gas transmission pipeline, and the two ends of the rubber urea pipeline are respectively connected with a first rubber urea pipe mounting base and a second rubber urea pipe mounting base; a three-way one-way valve assembly is mounted on the first rubber urea pipe mounting base, and a sensor mounting base and a power input connector assembly are mounted on the other two ports of the three-way one-way valve assembly respectively; the lead pipe is connected to the rubber urea pipe first installation base, and the nylon gas conveying pipeline is installed and connected to the power input connector assembly. According to the utility model, the product comprises a urea quick-plug connector, a sensor mounting base, a rubber urea pipeline, a three-way one-way valve assembly, a power supply input connector assembly, a nylon gas transmission pipeline and a gas input quick-plug connector, wherein the rubber urea pipeline is externally wound with a heating wire. The injection-molded joint of the product adopts an integral forming technology, so that the size is accurate and the strength is reliable.

Description

Technical Field

[0001] The utility model belongs to the technical field of urea pipes, and particularly relates to a urea pipe with a pressure sensor. Background Art

[0002] Urea pipes are critical components in diesel vehicle selective catalytic reduction (SCR) systems, primarily used to transport urea solution. Urea pipes transport the vehicle's urea solution, which is used in SCR systems to reduce nitrogen oxide (NOx) pollution in diesel vehicle exhaust. The urea solution reacts chemically with nitrogen oxides in exhaust gas to produce non-toxic nitrogen and water, thereby reducing toxic emissions. Urea pipes typically have built-in heating systems to ensure proper flow of the urea solution in low winter temperatures and prevent solidification. The pipe body is typically made of urea- and high-temperature-resistant materials, such as SUS304 stainless steel, to ensure reliability and durability. Urea pipes are an indispensable component of diesel vehicle SCR systems, ensuring smooth delivery of urea solution to the injection unit, thereby reducing exhaust emissions and protecting the environment. Proper use and maintenance of urea pipes are crucial to ensuring proper vehicle operation and environmental compliance. Urea pipes require accessories to ensure timely installation and optimal performance. Utility Model Content

[0003] The purpose of the utility model is to provide a urea pipe with a pressure sensor so that the urea pipe can be better installed and used, the installation and use effect is improved, and the installation and use efficiency of the urea pipe is increased.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the present utility model is as follows.

[0005] A urea tube with a pressure sensor includes a rubber urea tube, a lead tube, and a nylon gas transmission tube. The two ends of the rubber urea tube are respectively connected to a first rubber urea tube mounting base and a second rubber urea tube mounting base; a three-way one-way valve assembly is installed on the first rubber urea tube mounting base, and the other two ends of the three-way one-way valve assembly are respectively installed with a sensor mounting base and a power input connector assembly; the lead tube is connected to the first rubber urea tube mounting base, and the nylon gas transmission tube is installed and connected to the power input connector assembly.

[0006] Furthermore, the outside of the rubber urea pipeline is wrapped with a heating wire.

[0007] Furthermore, a rubber urea pipe installation interface is installed on the second installation base of the rubber urea pipe. A channel connection port is provided in the middle of the rubber urea pipe installation interface, and a card-in groove is provided on the side to facilitate external card-in installation and connection.

[0008] Furthermore, a gas input quick-connect connector is installed at the other end of the nylon gas pipeline. The gas input quick-connect connector is provided with multiple steps on the side for easy external connection, and a snap-in groove on the side for easy snap-in installation and connection.

[0009] Furthermore, a urea quick-plug connector is provided at the other end of the lead-in tube, and a snap-in hook is provided on the side of the urea quick-plug connector for convenient and quick snap-in installation.

[0010] Furthermore, a through slot is provided on the side of the sensor mounting base to facilitate the external installation of a pressure sensor.

[0011] Furthermore, a power insertion interface is provided on the side of the power input connector assembly to facilitate power insertion and installation.

[0012] This utility model offers the following benefits: It comprises a urea quick-connect connector with a sensor mounting base, a rubber urea line wrapped with a heater wire, a three-way check valve assembly, a power input connector assembly, a nylon gas line, and a gas input quick-connect connector, allowing for quick connection and use as needed. The injection-molded connector utilizes one-piece molding technology to ensure precise dimensions and reliable strength. It also features a sensor mounting base for mounting a pressure sensor, providing pressure sensing. A spring and O-ring seal ensures the connector's backflush function operates properly. The connector also offers excellent sealing performance, leak-free operation at high pressures and leak-free operation at pressures exceeding 2.5 times its normal operating pressure, ensuring excellent pressure resistance. The heater wire ensures complete thawing of the urea solution line within 32 minutes even at low power, ensuring excellent thawing performance. Laser welding ensures structural stability, a good seal, and excellent durability. The one-piece injection molding of the check valve connector, urea line, and gas line ensures high precision. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the device used in the embodiment of the present utility model.

[0014] Figure 2 It is a schematic diagram of the three-dimensional structure of the device used in the embodiment of the utility model from another angle.

[0015] Figure 3 yes Figure 2 Schematic diagram of the locally enlarged structure at point A in the middle.

[0016] Figure 4 yes Figure 2 Schematic diagram of the locally enlarged structure at point B in the middle.

[0017] Figure 5 yes Figure 2 Schematic diagram of the partially enlarged structure at point C in the middle.

[0018] Explanation of marks in the figure: 1. Rubber urea pipeline; 2. Lead tube; 3. First mounting base of rubber urea pipeline; 4. Sensor mounting base; 5. Three-way one-way valve assembly; 6. Urea quick connector; 7. Nylon gas pipeline; 8. Gas input quick connector; 9. Rubber urea pipeline mounting interface; 10. Second mounting base of rubber urea pipeline; 11. Power input connector assembly. DETAILED DESCRIPTION

[0019] The specific implementation of the present invention will be described below in conjunction with the accompanying drawings and examples to facilitate a better understanding of the present invention.

[0020] like Figures 1 to 5 The urea tube with a pressure sensor shown in FIG. 1 includes a rubber urea tube 1, a lead tube 2, and a nylon gas transmission tube 7. The two ends of the rubber urea tube 1 are connected to a first rubber urea tube mounting base 3 and a second rubber urea tube mounting base 10, respectively. A three-way check valve assembly 5 is mounted on the first rubber urea tube mounting base 3, and the other two ends of the three-way check valve assembly 5 are mounted to a sensor mounting base 4 and a power input connector assembly 11, respectively. The lead tube 2 is connected to the first rubber urea tube mounting base 3, and the nylon gas transmission tube 7 is connected to the power input connector assembly 11. The rubber urea tube 1 is wrapped with a heating wire. A rubber urea tube mounting interface 9 is mounted on the second rubber urea tube mounting base 10. This interface 9 has a central channel connection and side slots for snap-in installation, facilitating external snap-in connection. The other end of the nylon gas pipeline 7 is fitted with a gas input quick-connector 8. This quick-connector features multiple steps on the side for easy connection to external connectors and slots for easy insertion. The other end of the lead tube 2 is fitted with a urea quick-connector 6, featuring snap-on hooks for quick installation. The sensor mounting base 4 features a slot on the side for easy installation of an external pressure sensor. The power input connector assembly 11 also features a power supply insertion port on the side for easy installation.

[0021] This utility model comprises a urea quick-connect connector with a sensor mounting base, a rubber urea line wrapped with a heater wire, a three-way check valve assembly, a power input connector assembly, a nylon gas line, and a gas input quick-connect connector, allowing for quick connection and use as needed. The injection-molded connector utilizes one-piece molding technology to ensure precise dimensions and reliable strength. It also features a sensor mounting base for mounting a pressure sensor, providing pressure sensing. A spring and O-ring seal ensures the connector's backflush function operates properly. The connector also offers excellent sealing performance, leak-free operation at high pressures and leak-free operation at pressures exceeding 2.5 times its nominal operating pressure, ensuring excellent pressure resistance. The heater wire ensures complete thawing of the urea solution line within 32 minutes even at low power, ensuring excellent thawing performance. Laser welding ensures structural stability, a secure seal, and excellent durability. The one-piece injection molding of the check valve connector, urea line, and gas line ensures high precision.

[0022] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A urea pipe with a pressure sensor, characterized in that: The invention comprises a rubber urea pipeline (1), a lead pipe (2) and a nylon gas pipeline (7), wherein the two ends of the rubber urea pipeline (1) are respectively connected to a first rubber urea pipeline mounting base (3) and a second rubber urea pipeline mounting base (10); a three-way one-way valve assembly (5) is mounted on the first rubber urea pipeline mounting base (3); the other two ends of the three-way one-way valve assembly (5) are respectively mounted with a sensor mounting base (4) and a power input connector assembly (11); the lead pipe (2) is connected to the first rubber urea pipeline mounting base (3), and the nylon gas pipeline (7) is mounted and connected to the power input connector assembly (11).

2. The urea pipe with a pressure sensor according to claim 1, characterized in that: The rubber urea pipeline (1) is externally coated with a heating wire.

3. The urea pipe with a pressure sensor according to claim 1, characterized in that: A rubber urea pipe installation interface (9) is installed on the second rubber urea pipe installation base (10), and a channel connection port is provided in the middle of the rubber urea pipe installation interface (9), and a snap-in slot is provided on the side.

4. The urea pipe with a pressure sensor according to claim 1, characterized in that: A gas input quick-connect connector (8) is installed at the other end of the nylon gas transmission pipeline (7). The gas input quick-connect connector (8) is provided with multiple steps on the side for facilitating external connection, and a snap-in slot on the side for facilitating snap-in installation and connection.

5. The urea pipe with a pressure sensor according to claim 1, characterized in that: The other end of the lead tube (2) is provided with a urea quick-connect connector (6), and the side of the urea quick-connect connector (6) is provided with a snap-in hook.

6. The urea pipe with a pressure sensor according to claim 1, characterized in that: A through slot is provided on the side of the sensor mounting base (4) to facilitate external installation of a pressure sensor.

7. The urea pipe with a pressure sensor according to claim 1, characterized in that: The power input connector assembly (11) is provided with a power insertion interface on the side to facilitate power insertion and installation.

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