Quick connector for automobile oil pipe

Abstract

The utility model discloses an automobile oil pipe quick joint in the technical field of joints, which comprises a joint pipe, a high-pressure oil pipe and an oil nozzle pipe, limiting ring plates are fixed on the edges of the outer surfaces of the two ends of the joint pipe, and fixed screw pipes are symmetrically and rotatably sleeved on the joint pipe on the outer sides of the limiting ring plates; threads matched with the interior of the fixed solenoid are arranged on the outer surfaces of the ends, close to the joint pipe, of the high-pressure oil pipe and the oil nozzle pipe, and outer supporting plates are fixed to the outer surfaces of the high-pressure oil pipe and the oil nozzle pipe at the side ends of the threads; by means of the two-end rotary connection mode, during connection, after positioning is conducted through the positioning protruding blocks, the fixing screw pipes are screwed to enable the two ends of the connector pipe to be fixedly connected with the high-pressure oil pipe and the oil nozzle pipe correspondingly, and during fixing, operation is convenient and fast, and firmness is high after fixing; the automobile oil pipe joint solves the problem that when an existing automobile oil pipe joint is used, fixing operation is tedious or connection is not stable enough, and the stability and convenience of the joint in the using process are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of joints, in particular to an automobile oil pipe quick joint. Background Art

[0002] The oil pipe is an important component of the car. It is a pipe connecting the high-pressure oil pipe and the fuel injector. The fuel pressure is output to the fuel injector through the high-pressure oil pipe, thereby completing the fuel injection of the car engine and providing fuel for the engine. It also provides power oil to the steering gear, reduces steering resistance, and improves the driving experience. The high-pressure oil pipe is connected to the connector on the fuel injector through a thread. One end is connected to the high-pressure oil pipe and the other end is connected to the fuel injector. During this process, the high-pressure oil pipe joint is subjected to the impact and corrosion of the high-pressure oil, so the quality of the high-pressure oil pipe joint is very important.

[0003] When using existing automobile oil pipe joints, most of them are plugged in at both ends or fixed by flanges. The fixing method of flange bolts requires precise alignment and tightening of multiple bolts when fixing. The plug-in method has high structural requirements and poor stability after plug-in. Based on this, the utility model designs an automobile oil pipe quick connector to solve the above problems. Utility Model Content

[0004] The utility model aims to provide an automobile oil pipe quick connector to solve the problem that the existing automobile oil pipe connector proposed in the above background technology has complicated fixing operation or insufficient connection stability during use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automobile oil pipe quick connector, comprising a connector pipe, a high-pressure oil pipe and a fuel injector pipe, the outer surface edges of both ends of the connector pipe are fixed with limiting ring plates, and a fixed screw is symmetrically rotatably sleeved on the connector pipe outside the limiting ring plate, the outer surfaces of the high-pressure oil pipe and the fuel injector pipe near the connector pipe end are both provided with threads that cooperate with the inner part of the fixed screw, and the outer surfaces of the high-pressure oil pipe and the fuel injector pipe at the threaded side ends are both fixed with external support plates, the ends of the high-pressure oil pipe and the fuel injector pipe near the connector pipe are both fixed with sealing pads, a plurality of positioning protrusions are equidistantly fixed on the outer surfaces of the two limiting ring plates, and the ends of the high-pressure oil pipe and the fuel injector pipe are both provided with positioning grooves that cooperate with the positioning protrusions.

[0006] Preferably, both ends of the joint pipe are provided with sealing grooves that cooperate with the sealing rubber gasket, and the opposite ends of the two fixed spiral tubes are provided with rotation holes that cooperate with the joint pipe.

[0007] Preferably, each of the positioning protrusions and positioning grooves is configured to be in an arc shape that matches the high-pressure oil pipe and the fuel injection nozzle pipe, and the outer ring diameter of each of the outer support plates is larger than the outer ring diameter of the fixed spiral tube.

[0008] Preferably, a plurality of slots are provided on the outer edges of the two outer support plates, connecting plates are symmetrically arranged on the outer side of the joint tube, and limiting blocks are fixed on both ends of the connecting plates facing the outer support plates, and the limiting blocks are slidably engaged on the outer support plates, and a connecting screw is fixed on the side of each connecting plate close to the joint tube, and an inner sliding block is fixed on the end of the connecting screw extending to the inside of the joint tube, and each of the inner sliding blocks is slidably sleeved in the inner sliding groove provided in the joint tube, and a fixing nut is threadedly sleeved on the connecting screw on the outside of the joint tube.

[0009] Preferably, the length of the two connecting plates is equal to the length between the outer sides of the two outer support plates, and the distance between each outer support plate and the end of the high-pressure oil pipe and the injector nozzle is equal to the distance between the inner end of the fixed spiral tube and the outer side of the limiting ring plate.

[0010] Preferably, the cross-section of the inner slide groove is configured as a "convex" shape that cooperates with the inner slide block and the connecting screw, and each of the limit blocks is configured as an arc that cooperates with the slot.

[0011] Preferably, a backing plate is slidably sleeved on the connecting screws inside the two fixing nuts, and the side of the backing plate away from the fixing nut is configured to be an arc shape that matches the outer surface of the joint pipe.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The utility model adopts a two-end rotating connection method. When connecting, after positioning through the positioning protrusion, the fixing screw is turned so that the two ends of the joint pipe are fixedly connected to the high-pressure oil pipe and the injector pipe respectively. The fixing operation is convenient and the fixing force is strong. This solves the problem that the fixing operation of the existing automobile oil pipe joint is cumbersome or the connection is not stable enough during use, and greatly improves the stability and convenience of the joint when in use.

[0014] (2) Through the reinforcement structure on both sides, after the fixing is completed, the joint pipe and the high-pressure fuel pipe and the fuel injector pipe on both sides can be reinforced, so that the connection between the high-pressure fuel pipe and the fuel injector pipe is more firm, and the fixing screw can protect the joint of the high-pressure fuel pipe and the fuel injector pipe. If the joint pipe is damaged, it can also cause damage to the high-pressure fuel pipe and the fuel injector pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1It is a three-dimensional schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic diagram of a front cross-section of the structure of the utility model;

[0018] Figure 3 It is a partial cross-sectional schematic diagram of the split structure of the utility model;

[0019] Figure 4 For this utility model Figure 3 A schematic diagram of the enlarged structure in FIG.

[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0021] 1-connecting pipe, 2-high pressure oil pipe, 3-injection nozzle pipe, 4-limiting ring plate, 5-fixing screw, 6-sealing pad, 7-positioning protrusion, 8-positioning groove, 9-outer support plate, 10-card slot, 11-connecting plate, 12-limiting block, 13-connecting screw, 14-inner slider, 15-inner slide groove, 16-pad, 17-fixing nut. 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 of 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 1-4 The utility model provides a technical solution: an automobile oil pipe quick connector, including a joint pipe 1, a high-pressure oil pipe 2 and a fuel injection nozzle pipe 3. The outer surface edges of both ends of the joint pipe 1 are fixed with a limiting ring plate 4, and a fixed spiral tube 5 is symmetrically rotated and sleeved on the joint pipe 1 outside the limiting ring plate 4. The outer surfaces of the high-pressure oil pipe 2 and the fuel injection nozzle pipe 3 near the joint pipe 1 are both provided with threads that match the inner part of the fixed spiral tube 5, and the outer surfaces of the high-pressure oil pipe 2 and the fuel injection nozzle pipe 3 at the threaded side ends are fixed with an outer support plate 9. The high-pressure oil pipe 2 and the fuel injection nozzle pipe 3 near the joint pipe 1 are A sealing pad 6 is fixed at one end, and sealing grooves cooperating with the sealing pad 6 are provided at both ends of the joint pipe 1. Rotating holes cooperating with the joint pipe 1 are provided at the opposite ends of the two fixed screw tubes 5. A number of positioning protrusions 7 are fixed at equal distances on the outer surfaces of the outer sides of the two limit ring plates 4. Each positioning protrusion 7 and the positioning groove 8 are set to an arc shape cooperating with the high-pressure oil pipe 2 and the fuel injection nozzle pipe 3. The outer ring diameter of each outer support plate 9 is larger than the outer ring diameter of the fixed screw tube 5. Positioning grooves 8 cooperating with the positioning protrusions 7 are provided at the ends of the high-pressure oil pipe 2 and the fuel injection nozzle pipe 3.

[0024] Among them, when it is necessary to fix the joint pipe 1 with the high-pressure oil pipe 2 and the injector nozzle pipe 3, first align the high-pressure oil pipe 2 with the joint pipe 1. After alignment, insert the positioning protrusions 7 into the positioning grooves 8 one by one, and at the same time insert the sealing pad 6 into the sealing groove, rotate the fixing screw 5 so that the fixing screw 5 is threadedly fixed to the outer surface of the high-pressure oil pipe 2 and abuts against the outer support plate 9, and then align the injector nozzle pipe 3 with the joint pipe 1, and after the positioning protrusions 7 and the sealing pad 6 are correspondingly inserted into the positioning grooves 8 and the sealing grooves, the fixing screw 5 is twisted to abut against the outer support plate 9 and fixed.

[0025] See also Figure 1-4 , the outer edges of the two outer support plates 9 are provided with a plurality of slots 10, and the outer side of the joint pipe 1 is symmetrically provided with connecting plates 11, and the length of the two connecting plates 11 is equal to the length between the outer sides of the two outer support plates 9, and the distance between each outer support plate 9 and the end of the high-pressure oil pipe 2 and the nozzle pipe 3 is equal to the distance between the inner end of the fixed screw tube 5 and the outer side of the limit ring plate 4, and the two ends of the connecting plate 11 are fixed with a limit block 12 on the side facing the outer support plate 9, and the limit blocks 12 are slidably engaged on the outer support plate 9, and each connecting plate 11 is fixed with a connecting screw 13 on the side close to the joint pipe 1, and the connecting screw 13 An inner slider 14 is fixed to one end extending into the interior of the joint pipe 1, and each inner slider 14 is slidably sleeved in an inner slide groove 15 opened in the joint pipe 1. The cross-section of the inner slide groove 15 is set to a "convex" shape that cooperates with the inner slider 14 and the connecting screw 13. Each limit block 12 is set to an arc shape that cooperates with the slot 10. A fixing nut 17 is threadedly sleeved on the connecting screw 13 on the outside of the joint pipe 1. A pad 16 is slidably sleeved on the connecting screw 13 on the inner side of the two fixing nuts 17, and the side of the pad 16 away from the fixing nut 17 is set to an arc shape that cooperates with the outer surface of the joint pipe 1.

[0026] Among them, before the joint pipe 1 is fixed to the high-pressure oil pipe 2 and the injector nozzle pipe 3, the fixing nut 17 is screwed to release the clamping fixation of the fixing nut 17 on the joint pipe 1, and the connecting plate 11 can be rotated to drive the inner sliding block 14 to rotate inside the inner sliding groove 15. After the connecting plate 11 is rotated until the limit block 12 is aligned, the high-pressure oil pipe 2 can be aligned and fitted with the joint pipe 1, and then the connecting plate 11 is pushed to make the connecting plate 11 move in a circle along the joint pipe 1 until the limit block 12 is completely misaligned with the slot 10. After misalignment, the fixing nut 17 is screwed until the joint pipe 1 is clamped and fixed.

[0027] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0028] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An automobile oil pipe quick connector, comprising a connector pipe (1), a high-pressure oil pipe (2) and a fuel injection nozzle pipe (3), characterized in that: The edges of the outer surfaces of both ends of the joint pipe (1) are fixed with limiting ring plates (4), and a fixed spiral tube (5) is symmetrically rotatably sleeved on the joint pipe (1) outside the limiting ring plate (4), and the outer surfaces of the high-pressure oil pipe (2) and the fuel injection nozzle pipe (3) near the joint pipe (1) are both provided with threads that match the interior of the fixed spiral tube (5), and the outer surfaces of the high-pressure oil pipe (2) and the fuel injection nozzle pipe (3) on the threaded side ends are both fixed with an outer support plate (9); A sealing rubber pad (6) is fixed to one end of the high-pressure oil pipe (2) and the fuel injection nozzle pipe (3) close to the joint pipe (1), and a plurality of positioning protrusions (7) are fixed at equal intervals on the outer surfaces of the two limiting ring plates (4). The ends of the high-pressure oil pipe (2) and the fuel injection nozzle pipe (3) are provided with positioning grooves (8) that cooperate with the positioning protrusions (7).

2. The automobile oil pipe quick connector according to claim 1, characterized in that: Both ends of the joint pipe (1) are provided with sealing grooves that cooperate with the sealing rubber pad (6), and the opposite ends of the two fixed screw tubes (5) are provided with rotation holes that cooperate with the joint pipe (1).

3. The automobile oil pipe quick connector according to claim 1, characterized in that: Each of the positioning protrusions (7) and positioning grooves (8) is configured to be in an arc shape that matches the high-pressure oil pipe (2) and the fuel injection nozzle pipe (3), and the outer ring diameter of each of the outer support plates (9) is greater than the outer ring diameter of the fixed spiral tube (5).

4. The automobile oil pipe quick connector according to claim 1, characterized in that: The outer edges of the two outer supporting plates (9) are provided with a plurality of slots (10); the outer side of the joint pipe (1) is symmetrically provided with a connecting plate (11); and both ends of the connecting plate (11) are fixed with a limiting block (12) on the side facing the outer supporting plate (9); the limiting blocks (12) are slidably engaged with the outer supporting plate (9); a connecting screw (13) is fixed on the side of each connecting plate (11) close to the joint pipe (1); and an inner sliding block (14) is fixed on the end of the connecting screw (13) extending into the inside of the joint pipe (1); each inner sliding block (14) is slidably sleeved in an inner sliding groove (15) provided in the joint pipe (1); and a fixing nut (17) is threadedly sleeved on the connecting screw (13) on the outer side of the joint pipe (1).

5. The automobile oil pipe quick connector according to claim 4, characterized in that: The length of the two connecting plates (11) is equal to the length between the outer sides of the two outer supporting plates (9), and the distance between each outer supporting plate (9) and the ends of the high-pressure oil pipe (2) and the fuel injection nozzle pipe (3) is equal to the distance between the inner end of the fixed spiral tube (5) and the outer side of the limiting ring plate (4).

6. The automobile oil pipe quick connector according to claim 4, characterized in that: The cross section of the inner slide groove (15) is configured as a "convex" shape that matches the inner slide block (14) and the connecting screw (13), and each of the limit blocks (12) is configured as an arc that matches the clamping groove (10).

7. The automobile oil pipe quick connector according to claim 4, characterized in that: A backing plate (16) is slidably sleeved on the connecting screws (13) inside the two fixing nuts (17), and the side of the backing plate (16) away from the fixing nuts (17) is arranged in an arc shape that matches the outer surface of the joint pipe (1).

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