EGR (Exhaust Gas Recirculation) valve interface structure

Abstract

The utility model relates to the technical field of EGR valves, in particular to an EGR valve connector structure which comprises a cover plate and a plug. The cover plate is provided with a rotary supporting block, and the plug is provided with a connecting socket used for plugging. The plug takes the center of the rotary supporting block as a rotation center and is rotationally connected to the rotary supporting block in the horizontal direction; and the plug and the cover plate are welded and fixed through a welding process. The utility model has the advantages that through the split design of the cover plate and the patch plug, the connecting socket on the patch plug can be conveniently rotated by 360 degrees, so that the corresponding adaptive angle is determined according to the product requirement, the overall adaptability and universality are improved, meanwhile, a new set of die does not need to be opened again, and the cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of EGR valves, in particular to an EGR valve interface structure. Background Art

[0002] The exhaust gas recirculation system is a very important system for the engine. When the engine is working, it can monitor the flow of exhaust gas, and then feed it back to the driving computer to make correct control to keep the vehicle running normally. The EGR valve is one of the important components of the entire exhaust gas recirculation system. It controls the amount of exhaust gas entering the intake manifold, so that a certain amount of exhaust gas flows into the intake manifold for recirculation, thereby reducing the emission of nitrogen oxides (NOX) in the exhaust gas. The interface of the ordinary EGR valve is as follows: Figure 6 As shown, the connection socket of the plug 2 in the EGR valve interface and the cover plate 1 are both designed with a fixed angle, which cannot be adapted to multiple environments and has poor versatility. It costs millions to make a new cover plate, which is too costly. Utility Model Content

[0003] The utility model aims to solve the technical problem that the existing EGR valve interface is of fixed angle and has poor adaptability. It provides a connecting plug which is rotatably connected to the cover plate, and can rotate 360° at the connecting socket on the connecting plug according to product requirements, thereby realizing the multi-angle requirements of the cover plate parts without opening a new mold, and improving the overall adaptability of the EGR valve interface structure.

[0004] For the purpose of this utility model, the following technical solutions are adopted:

[0005] An EGR valve interface structure includes a cover plate and a plug connector; a rotating support block is provided on the cover plate, and a connecting socket for plugging is provided on the plug connector; the plug connector is connected to the rotating support block by rotating horizontally with the center of the rotating support block as the rotating center; and the plug connector is welded and fixed to the cover plate by a welding process. Through the split design of the cover plate and the plug connector, the connecting socket on the plug connector can be conveniently rotated 360 degrees, so as to determine the corresponding adaptation angle according to product requirements, improve the overall adaptability and versatility, and at the same time, there is no need to open a new set of molds, saving costs.

[0006] Preferably, the rotating support block is in the shape of a circular column, and the bottom surface of the connector is provided with a circular groove that is rotatably matched with the rotating support block, and the connector is connected to the rotating support block in a horizontal direction through the circular groove. The structure of the circular column and the circular groove cooperates to facilitate horizontal rotation.

[0007] Preferably, the top surface of the rotating support block is a horizontal surface, and the bottom of the circular groove is a horizontal surface. When the circular groove is sleeved on the rotating support block, the top surface of the rotating support block fits with the bottom of the circular groove. The above structure can ensure that the circular groove and the rotating support block are tightly connected, prevent the connector from shaking, and ensure stable connection and stable rotation of the connector.

[0008] Preferably, the top surface of the cover plate is provided with a fixed base, and the top surface of the fixed base is a horizontal plane; the rotating support block is provided on the top surface of the fixed base, and an annular step is formed between the rotating support block and the fixed base; when the circular groove is sleeved on the rotating support block, the bottom surface of the connector is against the bottom surface of the annular step. The design of the annular step can ensure that the connector is stably placed on the rotating support block, and can realize the rotation of both the connector and the cover plate, thereby improving the stability of the connection and the stability of the rotation.

[0009] Preferably, when the circular groove is sleeved on the rotating support block, the inner circumferential wall of the circular groove contacts the outer circumferential wall of the rotating support block. The above structure can ensure that the circular groove and the rotating support block are tightly connected, prevent the connector from shaking, and ensure stable connection and stable rotation of the connector.

[0010] Preferably, the fixed base is cylindrical, and a plurality of support reinforcement blocks arranged and distributed along the circumference of the fixed base are provided between the fixed base and the cover plate. The support reinforcement blocks can further ensure the stability and connection strength of the fixed base connection.

[0011] Preferably, the top surface of the rotating support block is provided with a plurality of concentric annular grooves of different sizes, and an annular terminal is provided in each of the annular grooves, so that the plug terminal on the connector can be inserted and connected conveniently.

[0012] Preferably, the connector is provided with a plurality of plug terminals; one end of each of the plug terminals passes through the bottom of the circular groove and is vertically arranged in the circular groove; when the connector is connected to the cover plate, the plug terminal is vertically inserted into one of the annular grooves, and each plug terminal contacts one of the annular terminals one by one. The plug terminal is conveniently contacted and connected with the annular terminal.

[0013] To sum up, the advantage of the utility model is that the separate design of the cover plate and the connector can facilitate the 360° rotation of the connecting socket on the connector, thus solving the problem that the fixed angle of the connecting socket does not match the product, thereby determining the corresponding adaptation angle according to product requirements, improving the overall adaptability and versatility, and at the same time, there is no need to open a new set of molds, thus saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the EGR valve interface structure of the utility model.

[0015] Figure 2 It is a structural schematic diagram of the rotating support block in the utility model.

[0016] Figure 3 It is a structural schematic diagram of the connecting plug in the utility model.

[0017] Figure 4 It is a structural schematic diagram of the rotary support block and the ring terminal in the utility model.

[0018] Figure 5 The utility model is a structural schematic diagram of a connecting plug and a plug terminal.

[0019] Figure 6 It is a structural schematic diagram of an existing EGR valve interface structure.

[0020] Among them: 1. Cover plate; 2. Connecting plug; 21. Connecting socket; 22. Circular groove; 23. Positioning plug block; 24. Fixed card block; 3. Rotating support block; 31. Annular groove; 4. Fixed base; 5. Annular step; 51. Bottom of step; 6. Support reinforcement block; 7. Ring terminal; 8. Plug terminal. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0022] like Figures 1 to 5 As shown, an EGR valve interface structure includes a cover plate 1 and a plug connector 2; a rotating support block 3 is provided on the cover plate 1, and the rotating support block 3 is in the shape of a circular column, and a connecting socket 21 for plugging is provided on the plug connector 2; a circular groove 22 is provided on the bottom surface of the plug connector 2 for horizontal rotation with the rotating support block 3, and the plug connector 2 is connected to the rotating support block 3 by horizontal rotation with the center of the rotating support block 3 as the rotation center through the circular groove 22; when the rotation angle between the plug connector 2 and the cover plate 1 is determined, the cover plate 1 and the plug connector 2 are fixed by a welding process. Through the split design of the cover plate 1 and the plug connector 2, the connecting socket 21 on the plug connector 2 can be conveniently rotated 360°, so as to determine the corresponding adaptation angle according to the product requirements, improve the overall adaptability and versatility, and at the same time, there is no need to open a new set of molds, saving costs.

[0023] like Figures 1 to 5As shown, the top surface of the cover plate 1 is provided with a fixed base 4, which is cylindrical, and the top surface of the fixed base 4 is a horizontal plane. A plurality of support reinforcement blocks 6 arranged and distributed along the circumference of the fixed base 4 are provided between the fixed base 4 and the cover plate 1. The support reinforcement blocks 6 can further ensure the stability and connection strength of the fixed base 4. The rotating support block 3 is provided on the top surface of the fixed base 4, and the rotating support block 3, the fixed base 4 and the cover plate 1 are integrally formed. An annular step 5 is formed between the rotating support block 3 and the fixed base 4; when the circular groove 22 is sleeved on the rotating support block 3, the bottom surface of the connector 2 is against the bottom surface 51 of the annular step 5. Through the design of the annular step 5, it can be ensured that the connector 2 is stably placed on the rotating support block 3, and the rotation of the connector 2 and the cover plate 1 can be realized, thereby improving the stability of the connection and the stability of the rotation. When the circular groove 22 is sleeved on the rotating support block 3, the inner peripheral wall of the circular groove 22 contacts the outer peripheral wall of the rotating support block 3. The above structure can ensure that the circular groove 22 and the rotating support block 3 are tightly connected, prevent the connector 2 from shaking, and ensure that the connector 2 is stably connected and rotated.

[0024] like Figure 4 and Figure 5 As shown, the top surface of the rotating support block 3 is provided with a plurality of concentric annular grooves 31 of different sizes; an annular terminal 7 is provided in each annular groove 31. The annular terminal 7 is provided in the annular groove 31 to facilitate the insertion and connection of the plug terminal 8 on the connector 2. A plurality of plug terminals 8 are provided in the connector 2; one end of each plug terminal 8 passes through the bottom of the circular groove 22 and is vertically provided in the circular groove 22. When the connector 2 is connected to the cover plate 1, the plug terminal 8 is vertically inserted into one of the annular grooves 31, and each plug terminal 8 contacts each annular terminal 7 one by one. The plug terminal 8 is conveniently contacted and connected with the annular terminal 7.

[0025] like Figures 1 to 5 As shown, the connector 2 is provided with a positioning block 23 in the same direction as the connection socket 21. The positioning block 23 facilitates the connector 2 to be aligned with the connection connector to prevent reverse or crooked insertion. The connector 2 is provided with a fixing block 24 for fixing with the connector bayonet. The fixing block 24 facilitates the fixing with the connector bayonet on the connection connector.

[0026] To sum up, the advantage of the utility model is that through the split design of the cover plate 1 and the plug 2, the connecting socket 21 on the plug 2 can be easily rotated 360°, which solves the problem that the fixed angle of the connecting socket 21 does not match the product, thereby determining the corresponding adaptation angle according to product requirements, improving the overall adaptability and versatility, and at the same time, there is no need to open a new set of molds, saving costs.

[0027] Although the disclosure is disclosed as above, the protection scope of the disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the protection scope of the utility model.

Claims

1. An EGR valve interface structure, characterized in that: The invention comprises a cover plate (1) and a plug connector (2); the cover plate (1) is provided with a rotating support block (3), and the plug connector (2) is provided with a connecting socket (21) for plugging; the plug connector (2) is connected to the rotating support block (3) by rotating in a horizontal direction with the center of the rotating support block (3) as the rotating center, and the plug connector (2) is welded and fixed to the cover plate (1) by a welding process.

2. The EGR valve interface structure according to claim 1, characterized in that: The rotating support block (3) is in the shape of a circular column, and the bottom surface of the connector (2) is provided with a circular groove (22) that is rotatably matched with the rotating support block (3), and the connector (2) is connected to the rotating support block (3) in a horizontal rotation direction through the circular groove (22).

3. The EGR valve interface structure according to claim 2, characterized in that: The top surface of the rotating support block (3) is a horizontal surface, and the bottom of the circular groove (22) is a horizontal surface; when the circular groove (22) is sleeved on the rotating support block (3), the top surface of the rotating support block (3) fits with the bottom of the circular groove (22).

4. The EGR valve interface structure according to claim 2, characterized in that: The top surface of the cover plate (1) is provided with a fixed base (4), and the top surface of the fixed base (4) is a horizontal surface; the rotating support block (3) is provided on the top surface of the fixed base (4), and an annular step (5) is formed between the rotating support block (3) and the fixed base (4); when the circular groove (22) is sleeved on the rotating support block (3), the bottom surface of the connector (2) abuts against the bottom surface (51) of the annular step (5).

5. The EGR valve interface structure according to claim 2 or 4, characterized in that: When the circular groove (22) is sleeved on the rotating support block (3), the inner peripheral wall of the circular groove (22) contacts the outer peripheral wall of the rotating support block (3).

6. The EGR valve interface structure according to claim 4, characterized in that: The fixed base (4) is cylindrical, and a plurality of support reinforcement blocks (6) arranged and distributed along the circumference of the fixed base (4) are provided between the fixed base (4) and the cover plate (1).

7. The EGR valve interface structure according to claim 1, characterized in that: The top surface of the rotating support block (3) is provided with a plurality of concentric annular grooves (31) of different sizes; each annular groove (31) is provided with an annular terminal (7).

8. The EGR valve interface structure according to claim 7, characterized in that: A plurality of plug terminals (8) are arranged in the connector (2); one end of each of the plug terminals (8) passes through the bottom of the circular groove (22) and is vertically arranged in the circular groove (22); when the connector (2) is connected to the cover plate (1), the plug terminal (8) is vertically inserted into one of the annular grooves (31), and each plug terminal (8) is in one-to-one contact with one of the annular terminals (7).

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