Locking structure for assembling oil sprayer

Abstract

The utility model provides a locking structure for assembling a fuel injector, which comprises a fuel distribution pipe body, the top of the fuel distribution pipe body is provided with a connecting groove, the top of the connecting groove is communicated with a plurality of connecting nozzles which are distributed at equal intervals and have the same size, and the outer surfaces of the connecting nozzles are connected with a fuel injection pipe shell body in an inserted mode. According to the oil injection pipe shell, the oil injection pipe shell body can be rapidly installed through the arrangement of the locking mechanisms, the oil injection pipe shell body can be prevented from being damaged when the oil injection pipe shell body is damaged, and the oil injection pipe shell body can be prevented from being damaged when the oil injection pipe shell body is damaged. The whole fuel distribution pipe body can be replaced only after being detached, meanwhile, the stability of the fuel injection pipe shell body in the working process is improved, and the position of the locking mechanism can be controlled by arranging the detaching assembly, so that the fuel injection pipe shell body is unfixed, and the fuel injection pipe shell body is convenient to detach.

Description

Technical Field

[0001] The utility model relates to a fuel injector, in particular to a locking structure for assembling a fuel injector, belonging to the technical field of fuel injectors. Background Art

[0002] The fuel injector is a precision device with very high processing accuracy. It is required to have a large dynamic flow range, strong anti-clogging and anti-pollution capabilities, and good atomization performance. The fuel injector receives the injection pulse signal sent by the ECU and accurately controls the fuel injection amount. The spray characteristics of the fuel injector include atomization particle size, oil mist distribution, oil beam direction, range and diffusion cone angle, etc. These characteristics should meet the requirements of the diesel engine combustion system to achieve perfect mixture formation and combustion, and obtain higher power and thermal efficiency;

[0003] A Chinese patent publication (publication number: CN 216477638 U3) discloses a fuel injector, which includes a fuel injector housing and a fuel injector pair. The contact surfaces of the fuel injector housing and the fuel injector pair when docking are respectively a first docking surface and a second docking surface. The first docking surface is provided with a pin, and the second docking surface is provided with a pin groove adapted to the pin and used for inserting the pin during the docking process. The first docking surface and the second docking surface are set to be adapted to the inclined surface, so that the first docking surface is used to support the end of the needle valve during the docking process. The fuel injector of the utility model changes the setting mode of the contact surface when the fuel injector housing and the fuel injector pair are docked, so that the needle valve will not fall from the fuel injector pair, thereby reducing the difficulty of docking and improving the docking efficiency.

[0004] The fuel injector is generally installed on the fuel distribution pipe, and then a fixed amount of fuel is atomized through the fuel injector and sprayed into the intake manifold or cylinder. However, the above patent lacks a device for quickly installing the fuel injector. The fuel injector is often fixedly connected to the fuel pipe, which makes it difficult to quickly remove the fuel injector for replacement and reinstall a new one when the fuel injector fails, thereby affecting the normal use of the entire device;

[0005] Therefore, a locking structure for injector assembly is proposed. Utility Model Content

[0006] In view of this, the utility model provides a locking structure for injector assembly to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.

[0007] The technical solution of the utility model is implemented as follows: it includes a fuel distribution pipe body, a connecting groove is opened on the top of the fuel distribution pipe body, a plurality of connecting nozzles with equal spacing and the same size are connected to the top of the connecting groove, a fuel injection pipe shell body is plugged into the outer surface of the connecting nozzle, a plurality of locking mechanisms with equal spacing and the same size are arranged on the top of the connecting groove, the locking mechanism includes a locking assembly and a disassembly assembly, and a connecting ring is fixedly connected to the outer surface of the fuel injection pipe shell body.

[0008] Further preferably, the locking assembly includes an L-shaped plate, two of which are fixedly connected to the top of the connecting groove and located on the left and right sides of the connecting mouth, the inner surface of the L-shaped plate is fixedly connected with a sleeve, a moving rod is slidably connected to the inner wall of the sleeve, the inner side of the moving rod is fixedly connected with a special-shaped plate, and the top of the connecting ring is fitted with the bottom of the inner side of the special-shaped plate, and the front and rear sides of the special-shaped plate are rotatably connected with moving wheels through a rotating shaft.

[0009] Further preferably, the disassembly assembly includes a connecting plate, which is fixedly connected to the front side of the outer side of the L-shaped plate, and the front side of the connecting plate is fixedly connected to a servo motor, and the output end of the servo motor is rotatably connected to a turntable, and the turntable is in contact with the back side of the connecting plate, and the back side of the turntable is fixedly connected to a first rotating rod, and the other end of the first rotating rod is rotatably connected to a second rotating rod via a rotating shaft, and the other end of the second rotating rod is rotatably connected to a sliding rod via a rotating shaft, and the back side of the sliding rod is fixedly connected to a fixed block.

[0010] Further preferably, a round block is fixedly connected to the outer side of the moving rod, and the back side of the fixed block is fixedly connected to the front side of the round block.

[0011] Further preferably, a plurality of groups of sliding grooves which are equidistantly distributed and of the same size are provided on both the front and rear sides of the top of the connecting groove, and the bottom of the moving wheel is slidably connected to the inner side of the sliding groove.

[0012] Further preferably, the back side of the connecting plate is fixedly connected to a limiting plate, and the sliding rod is slidably connected to the inner side of the limiting plate.

[0013] Further preferably, a buffer spring is sleeved on the outer surface of the moving rod, and the left and right sides of the buffer spring are fixedly connected to the outer side of the special-shaped plate and the inner side of the sleeve respectively.

[0014] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0015] 1. The utility model provides a locking mechanism, which can enable the fuel injection pipe housing body to be quickly installed, and can also prevent the fuel injection pipe housing body from being completely disassembled to replace it when it is damaged. At the same time, the stability of the fuel injection pipe housing body during operation is improved. By providing a disassembly component, the position of the locking mechanism can be controlled, thereby releasing the fixation of the fuel injection pipe housing body, making the fuel injection pipe housing body easy to disassemble.

[0016] 2. The utility model can limit the movement of the moving rod by setting a round block to prevent the moving rod from moving out of the inner side of the sleeve. By setting a sliding groove, the stability of the moving wheel during movement can be improved. By setting a limiting plate, the movement of the sliding rod can be limited to prevent the sliding rod from deviating during movement. By setting a buffer spring, the movement of the moving rod can be buffered.

[0017] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a front view structural diagram of the utility model;

[0020] Figure 2 This is a structural diagram of the fuel distribution pipe body of the utility model in a disassembled state;

[0021] Figure 3 This is a structural diagram of the locking mechanism of the utility model in a disassembled state;

[0022] Figure 4 This is a rear view of the disassembly component of the utility model.

[0023] Figure numerals: 1. fuel distribution pipe body; 2. connecting groove; 3. connecting nozzle; 4. fuel injection pipe housing body; 5. locking mechanism; 51. locking assembly; 501. L-shaped plate; 502. sleeve; 503. moving rod; 504. special-shaped plate; 505. moving wheel; 506. round block; 52. disassembly assembly; 521. connecting plate; 522. servo motor; 523. turntable; 524. first rotating rod; 525. second rotating rod; 526. sliding rod; 527. fixed block; 6. connecting ring; 7. sliding groove; 8. limit plate; 9. buffer spring. DETAILED DESCRIPTION

[0024] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0025] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0026] Example 1

[0027] like Figure 1-4As shown, the embodiment of the utility model provides a locking structure for injector assembly, including a fuel distribution pipe body 1, a connecting groove 2 is opened on the top of the fuel distribution pipe body 1, a plurality of connecting nozzles 3 with equal spacing and the same size are connected to the top of the connecting groove 2, a fuel injection pipe shell body 4 is plugged into the outer surface of the connecting nozzle 3, a plurality of locking mechanisms 5 with equal spacing and the same size are arranged on the top of the connecting groove 2, the locking mechanism 5 includes a locking assembly 51 and a disassembly assembly 52, a connecting ring 6 is fixedly connected to the outer surface of the fuel injection pipe shell body 4, the locking assembly 51 includes an L-shaped plate 501, the number of the L-shaped plates 501 is two, which are respectively fixedly connected to the top of the connecting groove 2 and located on the left and right sides of the connecting nozzle 3, the inner surface of the L-shaped plate 501 is fixedly connected to a sleeve 502, the inner wall of the sleeve 502 is slidably connected to a moving rod 503, and the moving rod 503 is slidably connected to the inner wall of the sleeve 502. The inner side of the movable rod 503 is fixedly connected with a special-shaped plate 504, and the top of the connecting ring 6 is fitted with the bottom of the inner side of the special-shaped plate 504, and the front and rear sides of the special-shaped plate 504 are rotatably connected with moving wheels 505 through a rotating shaft. The disassembly component 52 includes a connecting plate 521, and the connecting plate 521 is fixedly connected to the front side of the outer side of the L-shaped plate 501. The front side of the connecting plate 521 is fixedly connected to a servo motor 522, and the output end of the servo motor 522 is rotatably connected to a turntable 523, and the turntable 523 is fitted with the back side of the connecting plate 521. The back side of the turntable 523 is fixedly connected with a first rotating rod 524, and the other end of the first rotating rod 524 is rotatably connected to a second rotating rod 525 through a rotating shaft, and the other end of the second rotating rod 525 is rotatably connected to a sliding rod 526 through a rotating shaft, and the back side of the sliding rod 526 is fixedly connected with a fixed block 527.

[0028] The utility model provides a locking mechanism 5 and a locking assembly 51, so that the fuel injection pipe housing body 4 can be quickly installed, and can also prevent the fuel injection pipe housing body 4 from being damaged and requiring the entire fuel distribution pipe body 1 to be completely disassembled for replacement, while also improving the stability of the fuel injection pipe housing body 4 during operation. By providing a disassembly assembly 52, the position of the locking assembly 51 can be controlled, thereby releasing the fixation of the fuel injection pipe housing body 4 and facilitating the disassembly of the fuel injection pipe housing body 4.

[0029] Example 2

[0030] In one embodiment, a round block 506 is fixedly connected to the outer side of the moving rod 503, and the back side of the fixed block 527 is fixedly connected to the front side of the round block 506, and multiple groups of sliding grooves 7 with equal spacing and the same size are opened on the front and rear sides of the top of the connecting groove 2, and the bottom of the moving wheel 505 is slidably connected to the inner side of the sliding groove 7, the back side of the connecting plate 521 is fixedly connected to the limiting plate 8, and the sliding rod 526 is slidably connected to the inner side of the limiting plate 8, and the outer surface of the moving rod 503 is provided with a buffer spring 9, and the left and right sides of the buffer spring 9 are respectively fixedly connected to the outer side of the special-shaped plate 504 and the inner side of the sleeve 502.

[0031] The utility model can limit the movement of the moving rod 503 by setting the round block 506 to prevent the moving rod 503 from moving out of the inner side of the sleeve 502. The utility model can improve the stability of the moving wheel 505 when moving by setting the sliding groove 7. The utility model can limit the movement of the sliding rod 526 by setting the limiting plate 8 to prevent the sliding rod 526 from deviating during the movement. The utility model can play a buffering role on the movement of the moving rod 503 by setting the buffer spring 9.

[0032] When the utility model is working: first, when it is necessary to install the fuel injection pipe shell body 4, the bottom of the fuel injection pipe shell body 4 is plugged into the top of the connecting nozzle 3. When the fuel injection pipe shell body 4 moves downward, it will drive the connecting ring 6 to move downward. When the connecting ring 6 moves downward, it squeezes the special-shaped plates 504 on both sides to move the special-shaped plates 504 outward. During the movement, the special-shaped plates 504 drive the moving rod 503 to move outward and squeeze the buffer spring 9 to deform the buffer spring 9 until the top of the connecting ring 6 fits with the bottom of the inner side of the special-shaped plate 504. The connecting ring 6 is fixed by the special-shaped plate 504, thereby completing the rapid installation of the fuel injection pipe shell body 4. When the tube shell body 4 fails and needs to be disassembled, the output end of the servo motor 522 is rotated to drive the turntable 523 and the first rotating rod 524 to rotate, the first rotating rod 524 drives the second rotating rod 525 to swing, and the second rotating rod 525 drives the sliding rod 526 to move outward, thereby driving the fixed block 527 and the round block 506 to move outward, and the moving rod 503 is driven to move outward again through the fixed block 527, so that the moving rod 503 drives the special-shaped plate 504 to move outward. At this time, the bottom of the inner side of the special-shaped plate 504 does not fit the top of the connecting ring 6, and the connecting ring 6 cannot be fixed. At this time, the fuel injection pipe shell body 4 can be pulled out to complete the disassembly of the fuel injection pipe shell body 4.

[0033] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A locking structure for injector assembly, characterized in that: The invention comprises a fuel distribution pipe body (1), a connection groove (2) is formed at the top of the fuel distribution pipe body (1), a plurality of connection nozzles (3) which are equidistantly distributed and have the same size are connected to the top of the connection groove (2), a fuel injection pipe shell body (4) is plugged into the outer surface of the connection nozzle (3), a plurality of locking mechanisms (5) which are equidistantly distributed and have the same size are arranged at the top of the connection groove (2), the locking mechanisms (5) comprising a locking assembly (51) and a disassembly assembly (52), and a connection ring (6) is fixedly connected to the outer surface of the fuel injection pipe shell body (4).

2. The locking structure for injector assembly according to claim 1, characterized in that: The locking assembly (51) comprises an L-shaped plate (501), wherein the number of the L-shaped plates (501) is two, which are respectively fixedly connected to the top of the connecting groove (2) and are located on the left and right sides of the connecting mouth (3); the inner surface of each L-shaped plate (501) is fixedly connected to a sleeve (502); a moving rod (503) is slidably connected to the inner wall of the sleeve (502); a special-shaped plate (504) is fixedly connected to the inner side of the moving rod (503); the top of the connecting ring (6) is in contact with the bottom of the inner side of the special-shaped plate (504); and the front and rear sides of the special-shaped plate (504) are rotatably connected to moving wheels (505) via a rotating shaft.

3. The locking structure for fuel injector assembly according to claim 2, characterized in that: The disassembly assembly (52) comprises a connecting plate (521), wherein the connecting plate (521) is fixedly connected to the front side of the outer side of the L-shaped plate (501), the front side of the connecting plate (521) is fixedly connected to a servo motor (522), the output end of the servo motor (522) is rotatably connected to a turntable (523), and the turntable (523) is in contact with the back side of the connecting plate (521), the back side of the turntable (523) is fixedly connected to a first rotating rod (524), the other end of the first rotating rod (524) is rotatably connected to a second rotating rod (525) via a rotating shaft, the other end of the second rotating rod (525) is rotatably connected to a sliding rod (526) via a rotating shaft, and the back side of the sliding rod (526) is fixedly connected to a fixed block (527).

4. The locking structure for fuel injector assembly according to claim 3, characterized in that: A round block (506) is fixedly connected to the outer side of the moving rod (503), and the back side of the fixed block (527) is fixedly connected to the front side of the round block (506).

5. The locking structure for injector assembly according to claim 2, characterized in that: A plurality of groups of sliding grooves (7) of equal distance and same size are provided on both the front and rear sides of the top of the connection groove (2), and the bottom of the moving wheel (505) is slidably connected to the inner side of the sliding groove (7).

6. The locking structure for fuel injector assembly according to claim 3, characterized in that: The back side of the connecting plate (521) is fixedly connected to the limiting plate (8), and the sliding rod (526) is slidably connected to the inner side of the limiting plate (8).

7. The locking structure for fuel injector assembly according to claim 2, characterized in that: A buffer spring (9) is sleeved on the outer surface of the moving rod (503), and the left and right sides of the buffer spring (9) are respectively fixedly connected to the outer side of the special-shaped plate (504) and the inner side of the sleeve (502).

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