Anti-falling quick connector structure for urea pipeline

Abstract

The utility model relates to the technical field of urea pipeline connectors, and discloses an anti-falling quick-plug connector structure for a urea pipeline, which comprises a first urea pipeline, a connector main body, an equipment connector, a sealing ring, a guide groove, an O-shaped ring and a locking lug, the locking device is used for locking the position of the plug in the connector body and preventing accidental falling. According to the anti-falling quick connector structure for the urea pipeline, the locking convex lug in the design is matched with the built-in spring to provide a quick and safe connection mode, when the plug is inserted into the connector body and reaches a preset position, the arc-shaped contact face allows the locking convex lug to smoothly transit to the locking position, the internal spring immediately pushes the convex lug to pop out, and the anti-falling quick connector structure is used for preventing the urea pipeline from falling off. The connector is automatically locked, the self-locking mechanism not only simplifies the operation process, but also remarkably enhances the connection stability, and accidental falling caused by vibration or external force is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of urea pipeline joints, in particular to an anti-dropping quick-plug joint structure for a urea pipeline. Background Art

[0002] With the continuous improvement of automobile exhaust emission standards and the increasing attention to environmental protection, urea exhaust treatment systems are widely used in modern vehicles as an effective emission reduction technology. Urea solution (also known as urea water or urea aqueous solution) is sprayed into the exhaust pipe to react chemically with nitrogen oxides (NOx) in the exhaust gas, converting them into nitrogen and water vapor with less impact on the environment. The anti-drop quick-plug connector structure for urea pipelines is a key component of the urea exhaust treatment system. Its design and function are directly related to the stability, safety and performance of the entire system.

[0003] Traditional connector designs often have problems such as loose connection, easy falling off and poor sealing. These problems may lead to urea leakage, system failure and even environmental pollution. Therefore, the development of a quick-connect connector with superior performance and easy operation has become an urgent technical need for automotive urea exhaust treatment systems. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] The utility model aims to provide an anti-drop-off quick-plug connector structure for a urea pipeline, so as to solve the problems of loose connection, easy drop-off and poor sealing of the conventional urea pipeline connectors mentioned in the above background technology.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-drop-off quick-plug connector structure for a urea pipeline, the anti-drop-off quick-plug connector structure for a urea pipeline comprises a first urea pipeline, a connector body, a fastening ring, a plug, a locking lug, an arc-shaped contact surface, a movable spring, a limit end, a connector inner wall, a spring seat, a second urea pipeline, an equipment connector, a sealing ring, a guide groove and an O-ring, wherein a connector body is arranged at the upper end of the first urea pipeline, a fastening ring is arranged at the upper end of the connector body, a plug is arranged at the upper end of the fastening ring, four locking lugs are arranged around the plug, an arc-shaped contact surface is arranged on the outer side of the locking lug away from the plug, the fastening ring is used to fix the plug, and ensure the stable installation and connection of the plug in the connector body, the plug is a key component for connecting two urea pipelines, the connection is completed by inserting the connector body, and the locking lug is provided to lock the connector, and the locking lug is located at a convex structure around the plug, which is used to lock the position of the plug in the connector body to prevent accidental drop-off.

[0008] Preferably, a movable spring is provided inside the locking lug, and a limit end is provided at a position of the locking lug close to the center of the plug. The movable spring is built into the locking lug to provide elastic support during the plug locking process, thereby ensuring the automatic resetting and locking functions of the locking lug. The limit end is located inside the locking lug to limit the movement range of the locking lug, thereby ensuring that the locking lug can be accurately locked in place during the plug insertion process.

[0009] Preferably, a joint inner wall is provided inside the plug, and a spring seat is provided at a position of the outer circle of the joint inner wall corresponding to the movable spring.

[0010] Preferably, a second urea pipeline is arranged on the upper side of the first urea pipeline.

[0011] Preferably, a device connector is provided at the lower end of the second urea pipeline, and a sealing ring is provided at the lower end of the device connector.

[0012] Preferably, a guide groove is provided inside the equipment joint, and an O-ring is provided on the outer ring of the guide groove. The O-ring provides additional sealing to ensure the sealing performance of the joint and prevent leakage of the urea solution.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The anti-drop-off quick-plug connector structure for the urea pipeline has a locking lug in the design and a built-in spring to provide a quick and safe connection method. When the plug is inserted into the connector body and reaches the predetermined position, the arc-shaped contact surface allows the locking lug to smoothly transition to the locked position. The internal spring then pushes the lug outward to automatically lock the connector. This self-locking mechanism not only simplifies the operation process, but also significantly enhances the stability of the connection and avoids accidental dropout due to vibration or external forces.

[0015] 2. The urea pipeline uses an anti-drop quick-connect connector structure. The connector structure includes multiple sealing designs, such as sealing rings and O-rings, to effectively prevent leakage of urea solution. The key to this sealing design is to protect the efficiency of the vehicle exhaust treatment system, prevent environmental pollution, and ensure that the purity of the urea solution is not affected by external pollutants. Good sealing also reduces the need for system maintenance and extends the service life of the pipeline and components;

[0016] 3. The urea pipeline uses an anti-drop quick-connect connector structure. The quick-connect connector includes a quick-release button, so that the connection and disconnection of the connector can be performed quickly, greatly reducing the time and labor of maintenance and inspection. This design enables operators to quickly connect and disconnect the pipeline without using complex tools, which is particularly suitable for application scenarios that require frequent connection and disconnection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the urea pipeline of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the urea pipeline joint of the utility model;

[0019] Figure 3 This is a top view of the urea pipeline joint of the utility model;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of a urea pipeline joint of the utility model.

[0021] In the figure: 1. first urea pipeline; 2. joint body; 3. fastening ring; 4. plug; 5. locking lug; 6. arc-shaped contact surface; 7. movable spring; 8. limit end; 9. inner wall of joint; 10. spring seat; 11. second urea pipeline; 12. equipment joint; 13. sealing ring; 14. guide groove; 15. O-ring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 4 The utility model provides a technical solution: a quick-plug connector structure for preventing urea pipelines from falling off, the quick-plug connector structure for preventing urea pipelines from falling off comprises a first urea pipeline 1, a connector body 2, a fastening ring 3, a plug 4, a locking lug 5, an arc-shaped contact surface 6, a movable spring 7, a limit end 8, a connector inner wall 9, a spring seat 10, a second urea pipeline 11, an equipment connector 12, a sealing ring 13, a guide groove 14 and an O-ring 15. The upper end of the first urea pipeline 1 is provided with a connector body 2, the upper end of the connector body 2 is provided with a fastening ring 3, the upper end of the fastening ring 3 is provided with a plug 4, four locking lugs 5 are provided around the plug 4, and the locking lugs 5 is provided with an arcuate contact surface 6 on the outer side away from the plug 4. In this anti-drop quick-connect connector structure for urea pipeline, the working principle and process involve the interaction of several key components to ensure the safety and sealing of the connection. First, the first urea pipeline 1 is connected to the second urea pipeline 11 through the connector body 2 at its end. The connector body 2 is equipped with a fastening ring 3 to fix the plug 4. The plug 4 is designed with four locking lugs 5, each of which has an internal active spring 7 and an arcuate contact surface 6. These designs allow the plug to smoothly transition during the insertion process and automatically lock by the action of the spring when it reaches the appropriate position.

[0024] A movable spring 7 is arranged inside the locking lug 5, and a limit end 8 is arranged at a position of the locking lug 5 near the center of the plug 4. A joint inner wall 9 is arranged inside the plug 4, and a spring seat 10 is arranged at a position corresponding to the outer circle of the joint inner wall 9 and the movable spring 7. A second urea pipeline 11 is arranged on the upper side of the first urea pipeline 1. When the plug 4 is pushed into the joint body 2, the arc-shaped contact surface 6 of the locking lug 5 slides along the guide groove 14, and the guide groove is located inside the equipment joint 12. After compression, the movable spring 7 provides an outward elastic force for the locking lug 5, so that once the lug exceeds the locking point of the equipment joint 12, the spring drives the locking lug to pop outward, thereby locking the plug inside the joint. At this time, the limit end 8 prevents the locking lug from excessive movement, thereby ensuring the reliability of the locking mechanism.

[0025] The lower end of the second urea pipeline 11 is provided with a device connector 12, the lower end of the device connector 12 is provided with a sealing ring 13, the interior of the device connector 12 is provided with a guide groove 14, the outer ring of the guide groove 14 is provided with an O-ring 15, when the plug 4 is pushed into the connector body 2, the arcuate contact surface 6 of the locking lug 5 slides along the guide groove 14, the guide groove is located inside the device connector 12, the movable spring 7 provides an outward elastic force for the locking lug 5 after being compressed, so that once the lug exceeds the locking point of the device connector 12, the spring drives the lock The tightening lug pops outward, thereby locking the plug inside the connector. At this time, the limit end 8 prevents the locking lug from excessive movement, thereby ensuring the reliability of the locking mechanism. In order to enhance the sealing performance of the connector, a sealing ring 13 is installed at the lower end of the equipment connector 12, and an O-ring 15 on the outer ring of the guide groove 14 provides additional sealing to prevent leakage of the urea solution. This structure not only achieves a fast and safe physical connection, but also ensures a high degree of sealing at the connection to prevent any leakage of the urea solution during the transmission process.

[0026] Working principle: In this anti-drop quick-connect connector structure for urea pipeline, the working principle and process involve the interaction of several key components to ensure the safety and sealing of the connection. First, the first urea pipeline 1 is connected to the second urea pipeline 11 through the connector body 2 at its end. A fastening ring 3 is installed in the connector body 2 to fix the plug 4. The plug 4 is designed with four locking lugs 5. Each locking lug 5 has an internal active spring 7 and an arc-shaped contact surface 6. These designs allow the plug to transition smoothly during the insertion process and automatically lock through the action of the spring when it reaches the appropriate position. When the plug 4 is pushed into the connector body 2, the arc-shaped contact surface 6 of the locking lug 5 slides along the guide groove 14, which is located in the equipment connector 12 After being compressed, the movable spring 7 provides an outward elastic force for the locking lug 5, so that once the lug exceeds the locking point of the equipment connector 12, the spring drives the locking lug to pop outward, thereby locking the plug inside the connector. At this time, the limit end 8 prevents the locking lug from excessive movement, thereby ensuring the reliability of the locking mechanism. In order to enhance the sealing of the connector, a sealing ring 13 is installed at the lower end of the equipment connector 12, and an O-ring 15 on the outer ring of the guide groove 14 provides additional sealing to prevent leakage of urea solution. Through this structure, not only a fast and safe physical connection is achieved, but also a high degree of sealing of the connection is guaranteed, thereby preventing any leakage of urea solution during the transmission process, thereby ensuring the efficient and environmentally friendly operation of the entire urea exhaust gas treatment system.

[0027] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Simple modifications or equivalent substitutions of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. A quick-plug connector structure for a urea pipeline, comprising a first urea pipeline (1), a connector body (2) and a fastening ring (3), characterized in that: A joint body (2) is provided at the upper end of the first urea pipeline (1), a fastening ring (3) is provided at the upper end of the joint body (2), a plug (4) is provided at the upper end of the fastening ring (3), four locking lugs (5) are provided around the plug (4), and an arc-shaped contact surface (6) is provided on the outer side of the locking lug (5) away from the plug (4).

2. The anti-drop quick-plug connector structure for urea pipeline according to claim 1, characterized in that: A movable spring (7) is arranged inside the locking lug (5), and a limiting end (8) is arranged at a position of the locking lug (5) close to the center of the plug (4).

3. The anti-drop quick-plug connector structure for urea pipeline according to claim 1, characterized in that: The plug (4) is provided with a joint inner wall (9), and a spring seat (10) is provided at a position corresponding to the outer ring of the joint inner wall (9) and the movable spring (7).

4. The anti-drop quick-plug connector structure for urea pipeline according to claim 1, characterized in that: A second urea pipeline (11) is arranged on the upper side of the first urea pipeline (1).

5. The anti-drop quick-connect connector structure for urea pipeline according to claim 4, characterized in that: The lower end of the second urea pipeline (11) is provided with a device connector (12), and the lower end of the device connector (12) is provided with a sealing ring (13).

6. The anti-drop quick-connect connector structure for urea pipeline according to claim 5, characterized in that: A guide groove (14) is provided inside the equipment joint (12), and an O-ring (15) is provided on the outer ring of the guide groove (14).

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