Stainless steel pipe connecting piece of automobile engine

Abstract

The utility model discloses an automobile engine stainless steel pipe connecting piece which is applied to an oil pipe of an engine and comprises a first connector and a second connector, the first connector and the second connector are integrally formed, an inverted arc surface structure is formed on the surface of the first connector and can be attached to the outer side wall of the oil pipe, and therefore the contact area of the oil pipe and the pipe connecting piece is increased. An oil pipe installation hole is formed in the first connector, the oil pipe installation hole is formed in the inverted-arc-face structure, the oil pipe installation hole can be connected with an installation column on the side wall of the oil pipe in a matched and inserted mode, and therefore the pipe connector is fixed relative to the oil pipe, and the inverted-arc-face structure increases the contact area of the first connector and the outer side wall of the oil pipe. The effect of effectively improving the connection stability of the pipe connector and the outer side wall of the oil pipe can be achieved; the oil pipe mounting hole is formed in the inverted cambered surface structure, and the mounting column on the side wall of the oil pipe is matched and inserted with the oil pipe mounting hole, so that the connection stability of the pipe connector and the oil pipe can be further improved.

Description

Technical Field

[0001] The utility model relates to a stainless steel pipe connector for an automobile engine. Background Art

[0002] Pipe connectors are commonly used structures in automobile engine systems. They play a vital role in engine operation and can ensure the smooth flow of oil, gas, etc.

[0003] The joint between the fuel injection seat and the oil pipe is currently conventionally connected to the oil pipe by welding. However, since the oil pipe is a round pipe, the contact area between the joint and the side wall of the oil pipe is small, and the connection stability between the oil pipe and the joint after welding is poor. Utility Model Content

[0004] The utility model aims to provide a technical solution for a stainless steel pipe connector for an automobile engine in view of the deficiencies in the prior art, which can effectively improve the connection stability between the pipe connector and the side wall of the oil pipe.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] Automobile engine stainless steel pipe fittings, including

[0007] An oil pipe, a side wall of the oil pipe being formed with a mounting post;

[0008] A first joint, used for connecting with the oil pipe;

[0009] The surface of the first joint is formed with a chamfered surface structure, which can fit with the outer wall of the oil pipe, thereby increasing the contact area between the oil pipe and the pipe connector; the first joint is formed with an oil pipe mounting hole, which is opened on the chamfered surface structure, and the oil pipe mounting hole can be plugged with the mounting column on the side wall of the oil pipe, thereby realizing the fixation of the pipe connector relative to the oil pipe.

[0010] By adopting the above technical solution, the inverted arc surface structure formed on the surface of the first joint can fit with the outer wall of the oil pipe, and the two are connected by welding after fitting. Since the inverted arc surface structure increases the contact area between the first joint and the outer wall of the oil pipe, the connection stability between the pipe connector and the outer wall of the oil pipe can be effectively improved; the oil pipe mounting hole is opened on the inverted arc surface structure, and the mounting column on the side wall of the oil pipe is plugged into the oil pipe mounting hole, which can further improve the connection stability between the pipe connector and the oil pipe.

[0011] Furthermore, the first joint is provided with a fuel injection seat mounting hole, the fuel injection seat mounting hole is provided at the bottom end of the first joint, and the oil pipe mounting hole is communicated with the fuel injection seat mounting hole.

[0012] Furthermore, a first positioning groove is formed on the side of the first joint. The first positioning groove is opened on the side of the first joint, and one end of the first positioning groove is connected to the bottom end of the first joint to form a downward opening.

[0013] Furthermore, a second flaring structure is formed in the first positioning groove near the bottom end of the first joint.

[0014] Furthermore, a strip-shaped slot is formed on the side surface of the first connector.

[0015] Furthermore, it also includes a second joint, which is formed on one side of the first joint.

[0016] Furthermore, a bolt mounting hole is provided through the second joint.

[0017] Furthermore, the upper surface of the second joint is at a level lower than the top of the first joint, and a first chamfer is formed at a connection between the upper surface of the second joint and the side surface of the first joint.

[0018] Furthermore, the bottom end of the second joint protrudes horizontally from the bottom end of the first joint, and a second chamfer is formed at the connection between the bottom end of the first joint and the side surface of the second joint.

[0019] Furthermore, a ball is provided on the inner side wall of the oil pipe mounting hole, and a limiting groove adapted to the ball is formed on the mounting column. The mounting column and the oil pipe mounting hole are limited by the cooperation between the ball and the limiting groove.

[0020] The utility model has the following beneficial effects due to the adoption of the above technical solution:

[0021] 1. The utility model increases the contact area between the pipe connector and the oil pipe, thereby effectively improving the connection stability between the pipe connector and the side wall of the oil pipe;

[0022] 2. The pipe connector of the utility model is installed in cooperation with the fuel injection seat and the radial position limitation of the pipe connector and the fuel injection seat is realized through the first positioning groove, thereby improving the connection stability between the pipe connector and the fuel injection seat;

[0023] 3. The ball in the oil pipe installation hole of the utility model cooperates with the limiting groove on the side wall of the oil pipe to limit the position, which further improves the connection stability between the oil pipe and the pipe connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The utility model is further described below in conjunction with the accompanying drawings:

[0025] Figure 1 This is a schematic diagram of the structure of the pipe connector of the utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the pipe connector of the utility model in a front view;

[0027] Figure 3for Figure 2 Schematic diagram of the cross-sectional structure of AA;

[0028] Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure of the CC;

[0029] Figure 5 This is a schematic diagram of the structure of the pipe connector of the utility model in a rear view;

[0030] Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure of the middle BB;

[0031] Figure 7 This is a schematic diagram of the structure of the pipe connector of the utility model when viewed from above;

[0032] Figure 8 This is a structural schematic diagram of the connection state between the pipe connector and the oil pipe of the utility model;

[0033] In the figure: 1-first joint; 11-inverted arc surface structure; 12-oil pipe mounting hole; 13-ball bearing; 14-injection seat mounting hole; 15-first flaring structure; 16-first positioning groove; 17-second flaring structure; 18-strip card slot;

[0034] 2-second joint; 21-bolt mounting hole;

[0035] 3-first chamfer; 4-second chamfer; 5-oil pipe. DETAILED DESCRIPTION

[0036] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0037] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0038] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0039] Example 1

[0040] The stainless steel pipe connector of the automobile engine, the main body of which is the pipe connector connected to one side of the oil pipe 5;

[0041] The pipe connector includes a first connector 1 and a second connector 2. The first connector 1 is connected to one side of the second connector 2. Figure 1 , Figure 2 As shown;

[0042] The first joint 1 and the second joint 2 are integrally formed.

[0043] In this embodiment, the upper surface level of the second joint 2 is lower than the top surface of the first joint 1. Figure 1 As shown;

[0044] In this embodiment, the bottom surface of the second joint 2 protrudes horizontally from the bottom surface of the first joint 1. Figure 1 As shown;

[0045] A first chamfer 3 is formed at the connection between the upper surface of the second joint 2 and the side wall of the first joint 1. Figure 1 , Figure 5 As shown;

[0046] A second chamfer 4 is formed at the connection between the bottom end of the first joint 1 and the side wall of the second joint 2. Figure 5 , Figure 7 As shown;

[0047] When the pipe connector is installed on the automobile engine, if the connection between the first joint 1 and the second joint 2 is an acute angle, a gap will be generated between the connection and the corresponding components. By setting the first chamfer 3 and the second chamfer 4, a better fit can be achieved.

[0048] The second joint 2 is provided with a bolt mounting hole 21 extending vertically therethrough. Figure 1 , Figure 4 As shown;

[0049] The bolt mounting holes 21 are used to be fixed to corresponding equipment by means of bolts.

[0050] The first joint 1 is used to connect with the oil pipe 5;

[0051] The first joint 1 is connected to the outer wall of the oil pipe 5 by welding;

[0052] The surface of the first joint 1 is formed with a chamfered surface structure 11, and the chamfered surface structure 11 can be fitted with the outer wall of the oil pipe 5. Figure 8 As shown;

[0053] The chamfered surface structure 11 fits the outer wall of the oil pipe 5 to increase the contact area between the outer wall of the oil pipe 5 and the first joint 1 . Such a design effectively improves the connection stability between the oil pipe 5 and the pipe connector.

[0054] In this embodiment, the first joint 1 is formed with an oil pipe mounting hole 12, and the oil pipe mounting hole 12 is opened on the inverted arc surface structure 11. Figure 1 , Figure 3 As shown;

[0055] The outer side wall of the oil pipe 5 is formed with a mounting column;

[0056] In this embodiment, the mounting column and the oil pipe mounting hole 12 are clearance-matched;

[0057] The oil pipe mounting hole 12 can be plugged in with the mounting column to achieve relative fixation between the first joint 1 and the oil pipe 5;

[0058] Before the oil pipe 5 is welded to the first joint 1, the mounting post is inserted into the oil pipe mounting hole 12 to assist in positioning so as to facilitate welding operation.

[0059] In this embodiment, a ball 13 is arranged on the inner side wall of the oil pipe mounting hole 12, and a limiting groove adapted to the ball 13 is formed on the mounting column. After the mounting column is inserted into the oil pipe mounting hole 12, the limiting groove can cooperate with the ball 13 to limit the position; thereby, the connection stability between the oil pipe 5 and the first joint 1 can be further improved;

[0060] After the oil pipe 5 is plugged into the oil pipe mounting hole 12 through the mounting column, the outer wall of the oil pipe 5 is welded to the chamfered surface structure 11 , which can further improve the connection stability between the oil pipe 5 and the first joint 1 .

[0061] The bottom end of the first joint 1 is provided with a fuel injection seat mounting hole 14. Figure 3 As shown;

[0062] The fuel injection seat mounting hole 14 is used to be plugged and fixed with the corresponding plug-in portion of the fuel injection seat;

[0063] In this embodiment, the oil pipe mounting hole 12 is opened obliquely, and the oil pipe mounting hole 12 is connected to the fuel injection seat mounting hole 14. Figure 3 As shown;

[0064] A first expansion structure 15 is formed at the opening of the fuel injection seat mounting hole 14. The first expansion structure 15 is in the shape of a trumpet with a small top and a large bottom. Figure 3 As shown;

[0065] By providing the first flaring structure 15, the corresponding plug-in portion of the fuel injection seat can be more conveniently aligned with the fuel injection seat mounting hole 14 to achieve insertion.

[0066] A strip-shaped slot 18 is formed on the outer side wall of the first connector 1;

[0067] In this embodiment, the strip-shaped slots 18 are respectively provided on the front and back sides of the first connector 1, and the two are symmetrical to each other. Figure 1 , Figure 6 as well as Figure 7 As shown;

[0068] The strip-shaped slot 18 can be engaged with a corresponding engaging portion in the engine to achieve position limiting fixation.

[0069] A first positioning groove 16 is formed on the surface of the first joint 1;

[0070] In this embodiment, the first positioning groove 16 is formed on the back surface of the first connector 1, and the first positioning groove 16 is connected to the bottom surface of the first connector 1. Figure 5 , Figure 7 As shown;

[0071] One end of the first positioning groove 16 is connected to the bottom surface of the first joint 1 to form a downward opening. Figure 5 As shown;

[0072] When the first connector 1 is plugged and fixed with the fuel injection seat, the corresponding limiting portion on the fuel injection seat can be inserted into the first positioning groove 16 to achieve radial limiting of the pipe connector;

[0073] Furthermore, the first positioning groove 16 is formed with a second flaring structure 17;

[0074] The second expansion structure 17 is formed at one end of the first positioning groove 16 located at the bottom surface and communicates with the bottom of the first joint 1;

[0075] By providing the second expansion structure 17 , the limiting portion corresponding to the fuel injection seat can be more conveniently inserted into the first positioning groove 16 .

[0076] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. Automobile engine stainless steel pipe fittings, including An oil pipe (5), a side wall of the oil pipe (5) being formed with a mounting column; A first joint (1) used for connecting to an oil pipe (5); Features: The surface of the first joint (1) is formed with a chamfered surface structure (11), and the chamfered surface structure (11) can fit with the outer wall of the oil pipe (5), thereby increasing the contact area between the oil pipe (5) and the pipe connector; the first joint (1) is formed with an oil pipe mounting hole (12), and the oil pipe mounting hole (12) is opened on the chamfered surface structure (11), and the oil pipe mounting hole (12) can be plugged with the mounting column on the side wall of the oil pipe (5), thereby achieving the fixation of the pipe connector relative to the oil pipe (5).

2. The automobile engine stainless steel pipe connector according to claim 1, characterized in that: The first joint (1) is provided with an oil injection seat mounting hole (14), the oil injection seat mounting hole (14) is opened at the bottom end of the first joint (1), and the oil pipe mounting hole (12) is connected to the oil injection seat mounting hole (14).

3. The automobile engine stainless steel pipe connector according to claim 1, characterized in that: A first positioning groove (16) is formed on the side of the first joint (1); the first positioning groove (16) is opened on the side of the first joint (1), and one end of the first positioning groove is connected to the bottom end of the first joint (1) to form a downward opening.

4. The automobile engine stainless steel pipe connector according to claim 3, characterized in that: The first positioning groove (16) is formed with a second flaring structure (17) near the bottom end of the first joint (1).

5. The automobile engine stainless steel pipe connector according to claim 1, characterized in that: A strip-shaped slot (18) is formed on the side surface of the first joint (1).

6. The automobile engine stainless steel pipe connector according to claim 1, characterized in that: It also comprises a second joint (2), wherein the second joint (2) is formed on one side of the first joint (1).

7. The automobile engine stainless steel pipe connector according to claim 6, characterized in that: The second joint (2) is provided with a bolt mounting hole (21) extending therethrough.

8. The automobile engine stainless steel pipe connector according to claim 6, characterized in that: The upper surface of the second joint (2) is at a level lower than the top of the first joint (1), and a first chamfer (3) is formed at the connection between the upper surface of the second joint (2) and the side surface of the first joint (1).

9. The automobile engine stainless steel pipe connector according to claim 6, characterized in that: The bottom end of the second joint (2) protrudes horizontally from the bottom end of the first joint (1), and a second chamfer (4) is formed at the connection between the bottom end of the first joint (1) and the side surface of the second joint (2).

10. The automobile engine stainless steel pipe connector according to claim 1, characterized in that: The inner side wall of the oil pipe mounting hole (12) is provided with a ball (13), the mounting column is formed with a limiting groove adapted to the ball (13), and the mounting column and the oil pipe mounting hole (12) are matched and limited by the matching of the ball (13) and the limiting groove.

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