Urea pipe joint of SCR (Selective Catalytic Reduction) system

Abstract

The utility model discloses an SCR system urea pipe joint which comprises a joint body, a groove is formed in the outer surface of the joint body, an installation ring is arranged on the outer surface of the groove in a sleeved mode, two fixing rods are installed on the outer surface of the installation ring, and the left ends of the two fixing rods are both fixedly connected with first connecting rods. The ends, close to each other, of the two first connecting rods are fixedly connected with fixed clamping plates. According to the device, the groove is formed in the outer surface of the connector body, the outer surface of the groove is sleeved with the mounting ring, under the cooperation of the two fixing rods, the two fixing clamping plates clamp a connected connecting pipe, it is guaranteed that the connecting pipe is not prone to falling off in the use process in the follow-up process, and the connecting pipe is prevented from falling off easily. And through cooperation of two rotatable rotating rods and two auxiliary clamping plates, the connecting pipe can be reinforced again, and therefore the problems that an existing device can vibrate in the using process, a hose is likely to fall off, and danger is caused are effectively solved through the device.

Description

Technical Field

[0001] The utility model relates to the field of urea pipe joints, in particular to a urea pipe joint for an SCR system. Background Art

[0002] The use of automotive urea in automobile engines can treat exhaust gas and reduce environmental pollution. In order to more conveniently inject automotive urea solution into the engine, a urea pipe quick connector is required.

[0003] Chinese patent publication number CN215486216U discloses an SCR system urea pipe joint, which includes a joint body and a heating sleeve sleeved on the joint body, the heating sleeve includes a sleeve shell and a surface heating element arranged in the sleeve shell, the surface heating element and the sleeve shell are integrally injection-molded, and the surface heating element is sleeved on the joint body through the sleeve shell to provide surface heating to the joint body. However, there are still some shortcomings in the existing device. The existing device usually directly sleeves the hose on the connecting cone head and uses the friction force of the reverse cone head to reduce the falling off of the hose. However, the vehicle will vibrate during use, which can easily cause the hose to fall off, causing danger. To this end, we propose an SCR system urea pipe joint to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a urea pipe joint for an SCR system to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A urea pipe joint for an SCR system includes a joint body, wherein the outer surface of the joint body is provided with a groove, the outer surface of the groove is sleeved with a mounting ring, and the outer surface of the mounting ring is provided with two fixing rods, the left ends of the two fixing rods are fixedly connected to a first connecting rod, and the ends of the two first connecting rods that are close to each other are fixedly connected to a fixing splint, and the two fixing splints are in contact with each other.

[0007] In a further embodiment, a rotating rod is mounted on the outer surface of each of the two first connecting rods via a first bearing, and a second bearing is fixedly embedded on the left end of each of the two rotating rods.

[0008] In a further embodiment, the inner rings of the two second bearings are fixedly connected to second connecting rods, and auxiliary clamps are installed on the ends of the two second connecting rods close to each other, and the two auxiliary clamps are in contact with the outer surface of the connecting pipe.

[0009] In a further embodiment, the left side of the joint body is fixedly connected to an insertion tube, and the outer surface of the insertion tube is sleeved with a connecting tube.

[0010] In a further embodiment, two convex rings are fixedly connected to the outer surface of the insertion tube, and a fixing ring is sleeved on the outer surface of the connecting tube.

[0011] In a further embodiment, the outer surfaces of the two fixing rods are threadedly connected to first bolts, and the outer surfaces of the two fixing clamps and the outer surfaces of the two auxiliary clamps are threadedly connected to multiple second bolts.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model discloses a urea pipe joint for an SCR system. A groove is formed on the outer surface of a joint body, and a mounting ring is sleeved on the outer surface of the groove. With the cooperation of two fixing rods, the two fixing clamps can clamp the connected connecting pipes to ensure that the subsequent connecting pipes are not easily fallen off during use. Moreover, with the cooperation of two rotatable rotating rods and two auxiliary clamps, the connecting pipes can be reinforced again. Therefore, the device effectively solves the problem that the existing device will vibrate during use, which may easily cause the hose to fall off and cause danger. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of a urea pipe joint in an SCR system.

[0015] Figure 2 This is a schematic diagram of the front cross-section structure of a urea pipe joint in an SCR system.

[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of the insertion pipe in the urea pipe joint of an SCR system.

[0017] Figure 4 This is a schematic diagram of the structure of a urea pipe joint in an SCR system from a bottom view.

[0018] In the figure: 1. Joint body; 2. Mounting ring; 3. Fixing ring; 4. Connecting tube; 5. Auxiliary splint; 6. Rotating rod; 7. Fixing splint; 8. Fixing rod; 9. Groove; 10. Second bearing; 11. First connecting rod; 12. First bearing; 13. Second connecting rod; 14. Insert tube; 15. Protruding ring; 16. Second bolt; 17. First bolt. DETAILED DESCRIPTION

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0020] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-4The outer surface of the two fixing rods 8 is fixed with a first connecting rod 11, and the ends of the two first connecting rods 11 close to each other are fixedly connected with a fixing clamping plate 7. The two fixing clamping plates 7 are in contact with each other. By providing a groove 9 on the outer surface of the joint body 1 and sleeved with a mounting ring 2 on the outer surface of the groove 9, the two fixing rods 8 cooperate to enable the two fixing clamping plates 7 to clamp the connected connecting pipe 4 to ensure that the subsequent connecting pipe 4 is not easy to fall off during use, and by cooperating with the two rotatable rotating rods 6 and the two auxiliary clamping plates 5, the connecting pipe 4 can be reinforced again. Therefore, the device effectively solves the problem that the existing device will vibrate during use, which easily causes the hose to fall off and cause danger.

[0023] The outer surfaces of the two first connecting rods 11 are installed with rotating rods 6 through first bearings 12, the left ends of the two rotating rods 6 are fixedly inlaid with second bearings 10, the inner rings of the two second bearings 10 are fixedly connected with second connecting rods 13, and the ends of the two second connecting rods 13 close to each other are installed with auxiliary splints 5. The two auxiliary splints 5 are in contact with the outer surface of the connecting tube 4. Through the two rotatable rotating rods 6, the connecting tube 4 can be fixed when it is bent.

[0024] The left side of the joint body 1 is fixedly connected to an insertion tube 14, the outer surface of the insertion tube 14 is sleeved with a connecting tube 4, the outer surface of the insertion tube 14 is fixedly connected to two convex rings 15, the outer surface of the connecting tube 4 is sleeved with a fixing ring 3, the outer surfaces of the two fixing rods 8 are threadedly connected with a first bolt 17, the outer surfaces of the two fixing splints 7 and the outer surfaces of the two auxiliary splints 5 are threadedly connected with multiple second bolts 16, and the multiple bolts provided can facilitate disassembly of the device.

[0025] The working principle of this utility model is:

[0026] When using this SCR system urea pipe joint, the staff first sleeves the connecting pipe 4 in the device on the outer surface of the insertion pipe 14 and pushes the connecting pipe 4 forward to make it firmly installed. Secondly, the fixing ring 3 is sleeved on the outer surface of the connecting pipe 4, and the connecting pipe 4 is fixed again with the cooperation of the two convex rings 15 installed on the outer surface of the insertion pipe 14. Then, the two fixing rods 8 are installed on the outer surface of the mounting ring 2 through the two first bolts 17, and the two fixing clamps 7 and multiple second bolts 16 are cooperated to clamp the two fixing clamps 7 on the outer surface of the connecting pipe 4. Then, by rotating the two rotating rods 6, the two auxiliary clamps 5 are clamped on the outer surface of the connecting pipe 4 and fixed by the two second bolts 16. Finally, the staff installs the joint body 1 in the vehicle.

[0027] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0028] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A urea pipe joint for an SCR system, characterized by: The invention comprises a joint body (1), wherein the outer surface of the joint body (1) is provided with a groove (9), the outer surface of the groove (9) is sleeved with a mounting ring (2), and the outer surface of the mounting ring (2) is provided with two fixing rods (8), the left ends of the two fixing rods (8) are fixedly connected to a first connecting rod (11), and the ends of the two first connecting rods (11) close to each other are fixedly connected to a fixing splint (7), and the two fixing splints (7) are in contact with each other.

2. The SCR system urea pipe joint according to claim 1, characterized in that: The outer surfaces of the two first connecting rods (11) are both mounted with rotating rods (6) via first bearings (12), and the left ends of the two rotating rods (6) are both fixedly inlaid with second bearings (10).

3. The SCR system urea pipe joint according to claim 2, characterized in that: The inner rings of the two second bearings (10) are fixedly connected to a second connecting rod (13), and the ends of the two second connecting rods (13) close to each other are both installed with auxiliary clamping plates (5), and the two auxiliary clamping plates (5) are in contact with the outer surface of the connecting pipe (4).

4. The SCR system urea pipe joint according to claim 1, characterized in that: The left side of the joint body (1) is fixedly connected to an insertion pipe (14), and the outer surface of the insertion pipe (14) is sleeved with a connecting pipe (4).

5. The SCR system urea pipe joint according to claim 4, characterized in that: Two convex rings (15) are fixedly connected to the outer surface of the insertion tube (14), and a fixing ring (3) is sleeved on the outer surface of the connecting tube (4).

6. The SCR system urea pipe joint according to claim 1, characterized in that: The outer surfaces of the two fixing rods (8) are both threadedly connected with first bolts (17), and the outer surfaces of the two fixing clamps (7) and the outer surfaces of the two auxiliary clamps (5) are both threadedly connected with a plurality of second bolts (16).

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