Pipe joint fixing structure

Abstract

The utility model discloses a pipe joint fixing structure which comprises a pipe joint which is radially sealed with a pipe body of a component to be provided with the pipe joint; a plurality of clamping grooves are formed in the upper end of the connector pressing plate, and the connector pressing plate clamps the pipe joints in the clamping grooves from bottom to top; and the fastener is used for connecting and fixing the joint pressing plate and the shell of the to-be-mounted pipe joint part. According to the utility model, the joint installation process is simplified, and the assembly cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automobile parts, more specifically, the utility model relates to a pipe joint fixing structure, which is mainly used in the diesel engine exhaust aftertreatment system of various automobiles. BACKGROUND

[0002] With the gradual strengthening of people's environmental protection consciousness, the national emission standard for automobile exhaust is becoming more and more strict. In order to meet the strict standards required by the state, automobile and engine manufacturers need to add an engine exhaust aftertreatment system in the automobile system. In the entire exhaust aftertreatment system, the split type urea pump is a key component, and the pipe joint on the urea pump plays a role in connecting the upstream and downstream. The liquid inlet pipe joint, return pipe joint and injection pipe joint are usually provided on the urea pump. The liquid inlet pipe joint and the return pipe joint need to be connected with the urea tank, and the injection pipe joint needs to be connected with the nozzle. The design and installation of the pipe joint will directly affect the coordination and continuity between the components of the engine exhaust aftertreatment system.

[0003] In the prior art, multiple joints are fixed at the same time, resulting in a large number of pipe joints on the split type urea pump, and each joint needs to be fastened, which affects the overall installation rhythm. Moreover, the joints need to be designed with threads or other fastening structures. For a single joint, increasing the thread or other fastening structure design will increase the complexity of the joint and increase the corresponding manufacturing and assembly cost. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a pipe joint fixing structure which simplifies the joint installation process and reduces the assembly cost.

[0005] The utility model solves the technical problem by adopting the following technical scheme: a pipe joint fixing structure comprises:

[0006] A pipe joint is radially sealed with the pipe body of the component to which the pipe joint is to be installed.

[0007] A joint pressing plate is provided with a plurality of clamping grooves at its upper end, and the pipe joint is clamped in the clamping grooves from bottom to top.

[0008] A fastener connects and fixes the joint pressing plate and the shell of the component to which the pipe joint is to be installed.

[0009] As a further scheme of the utility model, the connecting end of the pipe joint is provided with a sealing ring.

[0010] As a further scheme of the utility model, the fastener is a self-tapping fastening screw, and the joint pressing plate and the shell are both provided with threaded bottom holes.

[0011] As a further scheme of the utility model is: the quantity of the clamping slots is same with the quantity of the pipe joints.

[0012] As a further scheme of the utility model is: the component to be installed pipe joint is urea pump.

[0013] As a further scheme of the utility model is: the joint pressing plate is long plate body structure and the four corners are all circular arc transition.

[0014] The utility model at least has following beneficial effects:

[0015] 1) adopt the pipe joint fixed structure of the application adopts the structure form that pipe joint and joint pressing plate are combined, can complete the fixation of all pipe joints through joint pressing plate, improves installation efficiency.

[0016] 2) the structure form of pipe joint in the application is more simplified, need not design threaded structure, only need to install sealing ring at pipe joint connecting part, can complete the connection of pipe joint, simplifies joint flow, reduces assembly cost.

[0017] Other advantages, objects and features of the utility model will be partly embodied through the following description, and some will be understood by the person skilled in the art through the research and practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structure schematic diagram of pipe joint fixed structure of one embodiment of the utility model is applied to split type urea pump;

[0019] Figure 2 It is the explosion view of pipe joint fixed structure of one embodiment of the utility model is applied to split type urea pump.

[0020] Wherein, 1-shell, 2-joint pressing plate, 3-pipe joint, 4-self-tapping fastener. DETAILED DESCRIPTION

[0021] The utility model will be explained in detail and completely in combination with the drawings. The person skilled in the art will be able to realize the utility model based on these explanations. Before the utility model is explained in combination with the drawings, it needs to be pointed out specially: the technical scheme and technical features provided in each part including the following explanation in the utility model can be combined mutually in the absence of conflict.

[0022] In addition, the embodiments of the utility model involved in the following description are generally only a part of the embodiments of the utility model, not all the embodiments. Therefore, all other embodiments obtained by the person skilled in the art based on the embodiments in the utility model without making creative efforts should belong to the scope of protection of the utility model.

[0023] The utility model will be further explained in detail in combination with the drawings and the implementation, and the specific implementation process is as follows, it is need to point out that the pipe joint fixing structure is not limited to be used on the pipe joint of split type urea pump, and the pipe joint fixing structure of the application is suitable for the joint installation of other automobile parts.

[0024] The utility model provides a pipe joint fixing structure, and the specific structure and relative position relation are specifically seen from Figure 1 And Figure 2 , comprising:

[0025] Pipe joint, which is radially sealed with the pipe body of the component to be installed with the pipe joint, the number of pipe joints is same with the number of pipe body to be connected;

[0026] Joint pressing plate, a plurality of clamping grooves are formed in the upper end of the joint pressing plate, the pipe joint is clamped in the clamping groove from bottom to top by the joint pressing plate;

[0027] Fastener, which connects and fixes the joint pressing plate and the shell of the component to be installed with the pipe joint.

[0028] In the above technical scheme, the components contained in the pipe joint fixing structure of the application mainly include urea pump shell, joint pressing plate, pipe joint and self-tapping fastening screw. The joint pressing plate, pipe joint and fastening screw are directly or indirectly fixed with the urea pump shell.

[0029] In a preferred embodiment of the pipe joint fixing structure of the application, the connecting end of the pipe joint is provided with a sealing ring, which is an O-shaped sealing ring in this embodiment.

[0030] In a preferred embodiment of the pipe joint fixing structure of the application, the fastener is a self-tapping fastening screw, and the joint pressing plate and the shell are both provided with threaded bottom holes, and the joint pressing plate and the shell are fastened through the self-tapping fastening screw and the threaded bottom holes.

[0031] In a preferred embodiment of the pipe joint fixing structure of the application, the number of clamping grooves is same with the number of pipe joints.

[0032] In a preferred embodiment of the pipe joint fixing structure of the application, the component to be installed with the pipe joint is a urea pump.

[0033] In a preferred embodiment of the pipe joint fixing structure of the application, the joint pressing plate is a long plate body structure, and the four corners thereof are all circular arc transitions.

[0034] The installation method of the pipe joint fixing structure is as follows: the pipe joint with the O-shaped ring is directly inserted into the corresponding hole of the urea pump shell, and the pipe joint is positioned at this moment; when the pipe joints are all installed, the joint pressing plate is inserted from below the pump body, so that the outer diameters of the pipe joints are respectively located in the clamping grooves of the pressing plate, and the inner side surface of the pressing plate is attached to the outer side surface of the joint; finally, the self-tapping fastening screw is used to fasten the pressing plate to the reserved hole of the shell, at this moment, the pressing plate and the joint are firmly fixed on the shell.

[0035] Although the embodiments of the present application have been disclosed as above, it is not limited to the application listed in the specification and the embodiments, and can be fully applied to various fields suitable for the present application. For those skilled in the art, other modifications can be easily realized, and therefore the present application is not limited to specific details and the embodiments shown and described herein.

Claims

1. A pipe joint fixing structure characterized by comprising: The utility model relates to a pipe joint installation device, including: a pipe joint is radially sealed with the pipe body of the component to be installed pipe joint; a plurality of clamping grooves are formed in the upper end of the joint pressing plate, and the joint pressing plate is clamped in the clamping grooves from bottom to top; fasteners connect and fix the joint pressing plate and the shell of the component to be installed pipe joint.

2. The pipe joint securing structure according to Claim 1, wherein The connecting end of the pipe joint is provided with a sealing ring.

3. The pipe joint securing structure according to claim 1 or 2, characterized by The fastener is a self-tapping fastener screw, and threaded bottom holes are arranged on the joint pressing plate and the shell.

4. The pipe joint securing structure according to Claim 1, wherein The number of clamping grooves is the same as the number of pipe joints.

5. The pipe joint securing structure as set forth in claim 1, wherein The component to be installed pipe joint is a urea pump.

6. The pipe joint securing structure as set forth in claim 1, wherein The joint pressing plate is a long plate body structure, and the four corners are all circular arc transitions.

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