Diesel engine oil nozzle structure for locomotive

Abstract

The utility model provides a diesel engine oil nozzle structure for a locomotive, which comprises a diesel engine assembly and a mounting assembly, the diesel engine assembly comprises a diesel engine body and an oil nozzle body, notches are formed in the surface of the diesel engine body, insertion holes are formed in inner cavities of the notches, the oil nozzle body is positioned in inner cavities of the insertion holes, and the mounting assembly is fixedly connected with the diesel engine assembly. The mounting assembly comprises a shell and a screw block, the shell is fixedly mounted at the top of the oil nozzle body, the screw block is located in an inner cavity of the shell, swing rods are movably connected to the periphery of the screw block, and the other ends of the swing rods are movably connected with a moving plate. And then the inserting block can assist in fixing the oil nozzle body, so that the oil nozzle body can be firmly mounted in the inner cavity of the notch, the stability of the oil nozzle body during mounting is guaranteed, the situation that the oil nozzle body is loosened and falls off due to vibration of the diesel engine body during operation is avoided, and the service life of the oil nozzle body is prolonged. And an operator can use the device conveniently.

Description

Technical Field

[0001] This utility model relates to a structure of a diesel engine fuel injector for locomotives, belonging to the field of fuel injector technology. Background Technology

[0002] The fuel injectors used in modern cars are actually simple solenoid valves. When the solenoid coil is energized, it generates suction, which lifts the needle valve, opens the nozzle, and fuel is sprayed out at high speed through the annular gap between the needle valve head and the nozzle, forming a mist that facilitates complete combustion. In the past, diesel engine fuel injectors were mechanically controlled. Mechanical diesel injectors work by controlling precision components (needle valve and needle valve body). The injector component is one of the three major precision components of traditional diesel engines. The three major precision components are: plunger and plunger sleeve, needle valve and needle valve body, and delivery valve and delivery valve seat. Gasoline engine injectors are part of the gasoline engine electronic control system, replacing the carburetor in carburetor-type gasoline engines. The main types of injectors used in automobiles are diesel injectors, gasoline injectors, and natural gas injectors. Some foreign manufacturers can now manufacture hydrogen-specific injectors.

[0003] Chinese Patent Publication No. CN 217926126 U discloses a detachable fuel injector structure, relating to the field of fuel injector technology. This invention includes an upper valve body and a lower valve body, positioned opposite each other. A connecting post is located at the bottom of the upper valve body, and a first magnet is located at the bottom of the connecting post. A groove is formed inside the lower valve body, with a friction plate on the inner surface wall and a second magnet on the inner bottom wall. The connecting post extends into the groove. The second magnet and the first magnet have different magnetic poles at their proximal ends, and the first and second magnets are magnetically connected. A compression ball is located on the inner surface of the groove, abutting against the connecting post. This invention, through the coordinated use of the upper and lower valve bodies, connecting post, friction plate, first magnet, and second magnet, allows the upper and lower valve bodies to be connected together. When the internal structure of the fuel injector needs to be replaced, the upper and lower valve bodies can be easily disassembled, making the fuel injector detachable and improving its ease of use.

[0004] Traditional fuel injectors are fixed by simply rotating and twisting the threads, which makes the installation inconvenient and not secure enough. This may cause the fuel injector to fall off due to engine vibration after installation, which may lead to the engine failing to operate properly and making it inconvenient for operators to use.

[0005] Therefore, a structure for a diesel engine fuel injector for locomotives is proposed. Summary of the Invention

[0006] In view of this, the present invention provides a diesel engine injector structure for locomotives to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial alternative.

[0007] The technical solution of this utility model is implemented as follows: a diesel engine injector structure for locomotives, comprising: a diesel engine assembly, the diesel engine assembly comprising a diesel engine body and an injector body, the surface of the diesel engine body being provided with slots, the inner cavity of the slots being provided with insertion holes, and the injector body being located in the inner cavity of the insertion holes;

[0008] The mounting assembly includes a housing and a screw block. The housing is fixedly mounted on the top of the fuel injector body. The screw block is located in the inner cavity of the housing. A swing rod is movably connected to all four sides of the screw block. A movable plate is movably connected to the other end of the swing rod. A plug block is fixedly mounted on the outer side of the movable plate. A rigid spring is fixedly connected to the inner side of the movable plate.

[0009] More preferably, a knob is movably connected to the top of the housing, and a threaded post is fixedly installed at the bottom of the knob, with the screw block threadedly connected to the surface of the threaded post.

[0010] More preferably, the top of the knob is threadedly connected to a limiting bolt, and the bottom of the limiting bolt is threadedly connected to the inner surface of the housing.

[0011] More preferably, the surface of the housing is provided with slots, and the plug-in block passes through the inner cavity of the slot and is inserted into the inner cavity of the plug hole.

[0012] More preferably, the inner cavity of the socket and the inner cavity of the slot are interconnected, and the inner cavity of the socket and the inner cavity of the slot are in the same horizontal direction.

[0013] More preferably, a limiting rod is fixedly installed at the bottom of the inner cavity of the housing, and the screw block is slidably connected to the surface of the limiting rod.

[0014] More preferably, the bottom of the inner cavity of the housing is provided with a movable groove, and the bottom of the movable plate is slidably connected to the inner cavity of the movable groove.

[0015] More preferably, a threaded sleeve is fixedly installed on the surface of the fuel injector body, and the threaded sleeve is threadedly connected to the inner cavity of the groove.

[0016] The present invention has the following advantages due to the adoption of the above technical solution:

[0017] I. This utility model, through the installation component, allows the screw block to move outward by rotating the knob, and the plug block is inserted into the inner cavity of the socket. The plug block then helps to fix the fuel injector body, so that the fuel injector body can be firmly installed in the inner cavity of the slot, ensuring the stability of the fuel injector body during installation and preventing the fuel injector body from loosening and falling off due to vibration of the diesel engine body during operation, thus facilitating operation by the operator.

[0018] Second, this utility model can limit the knob by setting a limiting bolt to prevent the knob from rotating due to vibration. By setting a slot, the movement of the plug block can be limited to prevent it from deviating during movement, thus affecting the installation of the fuel injector body. By setting a limiting rod, the movement of the screw block can be limited to prevent it from deviating during movement. By setting a moving groove, the movement of the moving plate can be limited to prevent the moving plate from changing direction during movement, thus affecting the installation of the fuel injector body. By setting a threaded sleeve, the fuel injector body can be connected to the inner cavity of the groove by rotation, improving the convenience of fuel injector body installation.

[0019] The above overview is for illustrative purposes 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 present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional front view structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the disassembly structure of the fuel injector body of this utility model;

[0023] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A;

[0024] Figure 4 This is a schematic diagram of the fuel injector body structure of this utility model;

[0025] Figure 5This is a schematic diagram of the internal structure of the shell of this utility model;

[0026] Figure 6 For the present utility model Figure 5 Enlarged structural diagram at point B.

[0027] Reference numerals: 1. Diesel engine assembly; 101. Diesel engine body; 102. Groove; 103. Insertion hole; 104. Injector body; 105. Threaded sleeve; 2. Mounting assembly; 201. Housing; 202. Knob; 203. Threaded post; 204. Threaded block; 205. Swing rod; 206. Moving plate; 207. Insertion block; 208. Hard spring; 209. Limit bolt; 210. Slot; 211. Limit rod; 212. Moving groove. Detailed Implementation

[0028] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0029] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Example 1

[0030] like Figure 1-6 As shown, this utility model embodiment provides a diesel engine injector structure for locomotives, including: a diesel engine assembly 1, the diesel engine assembly 1 including a diesel engine body 101 and an injector body 104, the surface of the diesel engine body 101 is provided with slots 102, the inner cavity of the slots 102 is provided with insertion holes 103, and the injector body 104 is located in the inner cavity of the insertion holes 103.

[0031] Mounting component 2 includes a housing 201 and a screw block 204. The housing 201 is fixedly mounted on the top of the injector body 104. The screw block 204 is located in the inner cavity of the housing 201. A swing rod 205 is movably connected to all four sides of the screw block 204. A movable plate 206 is movably connected to the other end of the swing rod 205. A plug block 207 is fixedly mounted on the outer side of the movable plate 206. A rigid spring 208 is fixedly connected to the inner side of the movable plate 206. A knob 202 is movably connected to the top of the housing 201. A threaded post 203 is fixedly mounted on the bottom of the knob 202. The screw block 204 is threadedly connected to the surface of the threaded post 203.

[0032] By setting the installation component 2 and rotating the knob 202, the screw block 204 drives the plug block 207 to move outward. The plug block 207 is inserted into the inner cavity of the socket 103, thereby helping to fix the injector body 104. This ensures that the injector body 104 can be firmly installed in the inner cavity of the slot 102, guaranteeing the stability of the injector body 104 during installation and preventing the injector body 104 from loosening or falling off due to vibration of the diesel engine body 101 during operation. This makes it convenient for operators to use. Example 2

[0033] like Figure 2-6 As shown, in one embodiment, the top of the knob 202 is threadedly connected to a limiting bolt 209, and the bottom of the limiting bolt 209 is threadedly connected to the inner surface of the housing 201. The surface of the housing 201 is provided with slots 210. The plug block 207 passes through the inner cavity of the slot 210 and is inserted into the inner cavity of the socket 103. The inner cavity of the socket 103 and the inner cavity of the slot 210 are interconnected. The inner cavity of the socket 103 and the inner cavity of the slot 210 are in the same horizontal direction. The bottom of the inner cavity of the housing 201 is fixedly installed with a limiting rod 211. The screw block 204 is slidably connected to the surface of the limiting rod 211. The bottom of the inner cavity of the housing 201 is provided with a moving groove 212. The bottom of the moving plate 206 is slidably connected to the inner cavity of the moving groove 212. The surface of the injector body 104 is fixedly installed with a threaded sleeve 105, which is threadedly connected to the inner cavity of the slot 102.

[0034] By setting the limiting bolt 209, the knob 202 can be restricted to prevent it from rotating due to vibration. By setting the slot 210, the movement of the plug block 207 can be limited to prevent it from shifting during movement, which would affect the installation of the fuel injector body 104. By setting the limiting rod 211, the movement of the screw block 204 can be limited to prevent it from shifting during movement. By setting the moving groove 212, the movement of the moving plate 206 can be limited to prevent it from changing direction during movement, which would affect the installation of the fuel injector body 104. By setting the threaded sleeve 105, the fuel injector body 104 can be connected to the inner cavity of the groove 102 by rotation, which improves the ease of installation of the fuel injector body 104.

[0035] In operation, the present invention is as follows: the injector body 104 is placed in the inner cavity of the slot 102, and then the injector body 104 is rotated. At this time, the threaded sleeve 105 is threadedly connected to the inner cavity of the slot 102. Then, by rotating the knob 202, the threaded post 203 rotates synchronously, and the screw block 204 moves downward along the surface of the threaded post 203, thereby causing the swing rod 205 to swing. At this time, the swing rod 205 drives the moving plate 206 to move outward. The moving plate 206 drives the insertion block 207 to be inserted into the inner cavity of the insertion hole 103 along the inner cavity of the slot 210. Then, the knob 202 is limited by rotating the limiting bolt 209, thereby realizing the installation of the injector body 104.

[0036] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A diesel engine fuel injector structure for locomotives, characterized in that, include: A diesel engine assembly (1) includes a diesel engine body (101) and a fuel injector body (104). The surface of the diesel engine body (101) is provided with slots (102), and the inner cavity of the slots (102) is provided with insertion holes (103). The fuel injector body (104) is located in the inner cavity of the insertion holes (103). The mounting assembly (2) includes a housing (201) and a screw block (204). The housing (201) is fixedly mounted on the top of the injector body (104). The screw block (204) is located in the inner cavity of the housing (201). A swing rod (205) is movably connected to all four sides of the screw block (204). A movable plate (206) is movably connected to the other end of the swing rod (205). A plug block (207) is fixedly mounted on the outer side of the movable plate (206). A rigid spring (208) is fixedly connected to the inner side of the movable plate (206).

2. The structure of a diesel engine injector for locomotives according to claim 1, characterized in that: A knob (202) is movably connected to the top of the housing (201), and a threaded post (203) is fixedly installed at the bottom of the knob (202). The screw block (204) is threadedly connected to the surface of the threaded post (203).

3. The structure of a diesel engine injector for locomotives according to claim 2, characterized in that: The top of the knob (202) is threadedly connected to a limiting bolt (209), and the bottom of the limiting bolt (209) is threadedly connected to the inner surface of the housing (201).

4. The structure of a diesel engine injector for locomotives according to claim 1, characterized in that: The surface of the housing (201) is provided with slots (210), and the plug block (207) passes through the inner cavity of the slot (210) and is inserted into the inner cavity of the plug hole (103).

5. The structure of a diesel engine injector for locomotives according to claim 4, characterized in that: The inner cavity of the socket (103) and the inner cavity of the slot (210) are interconnected, and the inner cavity of the socket (103) and the inner cavity of the slot (210) are in the same horizontal direction.

6. The structure of a diesel engine injector for locomotives according to claim 1, characterized in that: Limiting rods (211) are fixedly installed at the bottom of the inner cavity of the housing (201), and the screw block (204) is slidably connected to the surface of the limiting rod (211).

7. The structure of a diesel engine injector for locomotives according to claim 1, characterized in that: The bottom of the inner cavity of the housing (201) is provided with a moving groove (212), and the bottom of the moving plate (206) is slidably connected to the inner cavity of the moving groove (212).

8. The structure of a diesel engine injector for locomotives according to claim 1, characterized in that: A threaded sleeve (105) is fixedly installed on the surface of the injector body (104), and the threaded sleeve (105) is threadedly connected to the inner cavity of the slot (102).

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