Mounting structure of diesel injector

Abstract

The utility model relates to the technical field of electric control diesel engines, in particular to an installation structure of a diesel injector, which comprises a cylinder cover, a fixing column, a wire harness connector clip, an injector, a connecting pipe, a shell, a connecting block, a moving groove, a screw rod, a knob, a moving block and a wire harness pipe, the shell is fixedly connected with the connecting pipe and located at one end of the connecting pipe, the connecting block is fixedly connected with the shell and located below the shell, the moving groove is located at the lower end of the shell, the screw rod is rotationally connected with the connecting block and penetrates through the connecting block, and when a wire harness enters the shell, the wire harness can penetrate through the wire harness pipe conveniently, so that moving is convenient; and the screw rod drives the moving block to move in the moving groove so as to move the wire harness pipe, so that the position of the wire harness is adjusted, and the problem that the wire harness is not uniform in length and the wire harness bracket cannot be flexibly adjusted in the use process is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronically controlled diesel engines, in particular to a mounting structure of a diesel engine fuel injector. Background Art

[0002] At present, diesel engine injection refers to the injection of fuel into the cylinder through the injector. The injector realizes fuel injection by controlling the injection time, injection amount and injection angle of the fuel. The electronic control unit ECU receives the signals from various sensors and uses the solenoid valve on the injector to allow the diesel to inject the correct amount of fuel at the correct injection point with the correct injection pressure. The engine wiring harness connects various sensors, actuators, injector wiring harnesses and vehicle wiring harnesses, and finally enters the electronic control unit ECU. However, the injector wiring harness on the current electronically controlled diesel engine cannot guarantee the good performance of the diesel engine.

[0003] To solve the above problems, the prior art patent (CN205013176U) discloses an installation structure for the injector wiring harness on an electronically controlled diesel engine. By setting a wiring harness bracket, the injector wiring harness and the engine wiring harness are independently set, thereby avoiding the risk of the oil in the cylinder head cover leaking along the injector wiring harness to the outside of the cylinder, thereby ensuring the good performance of the diesel engine.

[0004] However, in the above-mentioned prior art, the lengths of the wire harnesses are different, and the wire harness bracket cannot be flexibly adjusted, which causes the wire harness to be loose during use. Utility Model Content

[0005] The utility model aims to provide a diesel engine injector installation structure, which solves the technical problem in the prior art that the wire harness has different lengths and the wire harness bracket cannot be flexibly adjusted, thus causing the wire harness to be used during use.

[0006] To achieve the above-mentioned purpose, the utility model adopts a mounting structure of a diesel engine injector, comprising a cylinder head, a fixed column, a wiring harness connector, an injector and a wiring harness bracket, wherein the wiring harness bracket comprises a connecting pipe, a shell, a connecting block, a movable groove, a screw and a mounting assembly, the cylinder head is fixedly connected to the fixed column and is located at one end of the fixed column, the wiring harness connector is detachably connected to the fixed column and is located at the other end of the fixed column, the injector is detachably connected to the cylinder head and is located inside the cylinder head, the connecting pipe is fixedly connected to the cylinder head and is located inside the cylinder head, the shell is fixedly connected to the connecting pipe and is located at one end of the connecting pipe, the connecting block is fixedly connected to the shell and is located on one side of the shell, the movable groove is located at the lower end of the shell, and the screw is rotatably connected to the connecting block and passes through the connecting block.

[0007] Among them, the wiring harness bracket also includes a knob, a moving block and a wiring harness tube. The knob is fixedly connected to the screw and is located at one end of the screw. The moving block is threadedly connected to the screw and is located in the middle of the screw. The wiring harness tube is detachably connected to the moving block and is located above the moving block.

[0008] Among them, the mounting assembly includes a support column, a fixing block and a connecting nail, one end of the support column is fixedly connected to the cylinder head and is located inside the cylinder head, the fixing block is fixedly connected to the support column and is located at the other end of the support column, and the connecting nail is detachably connected to the fixing block and is located above the fixing block.

[0009] Wherein, the mounting assembly further comprises a locking block and a solenoid valve, wherein the locking block is fixedly connected to the cylinder head and is located inside the cylinder head, and the solenoid valve is detachably connected to the cylinder head and is located inside the cylinder head.

[0010] Among them, the installation structure of the diesel engine injector also includes a sealing ring, a protective shell and a wiring harness hole. The sealing ring is movably connected to the cylinder head and is located inside the cylinder head. The protective shell is detachably connected to the sealing ring and is located above the sealing ring. The protective shell covers the solenoid valve, and the wiring harness hole is located on one side of the protective shell.

[0011] The utility model discloses a mounting structure of a diesel engine fuel injector, wherein the cylinder head is fixedly connected to a fixing column and is located at one end of the fixing column, the wiring harness connector is detachably connected to the fixing column and is located at the other end of the fixing column, the fuel injector is detachably connected to the cylinder head and is located inside the cylinder head, the connecting pipe is fixedly connected to the cylinder head and is located inside the cylinder head, the housing is fixedly connected to the connecting pipe and is located at one end of the connecting pipe, the connecting block is fixedly connected to the housing and is located at one side of the housing, and the movable groove is located at the At the lower end of the shell, the screw is rotatably connected to the connecting block and passes through the connecting block, connecting the wiring harness on the solenoid valve into the shell and passing through the wiring harness tube. The screw is driven to rotate by turning the knob, and the screw rotates under the fixation of the connecting block, driving the moving block to move in the moving groove, the moving block drives the wiring harness tube to move, and the wiring harness tube drives the wiring harness to move, so that the positions of different wiring harnesses can be adjusted. This method can effectively solve the problem of the wiring harness during use caused by different lengths of the wiring harness and the inability to flexibly adjust the wiring harness bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a structural schematic diagram of the first embodiment of the utility model.

[0014] Figure 2 It is a partial structural top view of the first embodiment of the utility model.

[0015] Figure 3 It is a partial structural schematic diagram of the first embodiment of the utility model.

[0016] Figure 4 It is a structural schematic diagram of the second embodiment of the utility model.

[0017] 101-cylinder head, 102-fixing column, 103-wiring harness connector, 104-injector, 105-solenoid valve, 106-connecting pipe, 107-housing, 108-connecting block, 109-moving groove, 110-screw, 111-knob, 112-moving block, 113-wiring harness tube, 114-support column, 115-fixing block, 116-connecting nail, 117-locking block, 201-sealing ring, 202-protective shell, 203-wiring harness hole. DETAILED DESCRIPTION

[0018] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0019] The first embodiment of the present application is:

[0020] See also Figure 1 to Figure 3 ,in Figure 1 It is a structural schematic diagram of the first embodiment of the utility model. Figure 2 It is a partial structural top view of the first embodiment of the utility model. Figure 3 It is a partial structural schematic diagram of the first embodiment of the utility model.

[0021] The utility model provides a mounting structure of a diesel engine injector, comprising a cylinder head 101, a fixing column 102, a wiring harness connector 103, an injector 104, a connecting pipe 106, a housing 107, a connecting block 108, a movable groove 109, a screw rod 110, a knob 111, a movable block 112, a wiring harness pipe 113, a supporting column 114, a fixing block 115, a connecting pin 116, a locking block 117 and a solenoid valve 105. The above-mentioned scheme solves the problem that the wiring harness lengths in the mounting structure of the diesel engine injector are different, and the wiring harness bracket cannot be flexibly adjusted, which leads to the wiring harness being used during use.

[0022] According to the present specific embodiment, the cylinder head 101 is fixedly connected to the fixing post 102 and is located at one end of the fixing post 102; the wiring harness connector 103 is detachably connected to the fixing post 102 and is located at the other end of the fixing post 102; the injector 104 is detachably connected to the cylinder head 101 and is located inside the cylinder head 101; the connecting pipe 106 is fixedly connected to the cylinder head 101 and is located inside the cylinder head 101; the housing 107 is fixedly connected to the connecting pipe 106 and is located inside the cylinder head 101; The connecting block 108 is fixedly connected to the shell 107 and is located at one end of the shell 107. The movable groove 109 is located at the lower end of the shell 107. The screw 110 is rotatably connected to the connecting block 108 and penetrates the connecting block 108. The wiring harness enters the shell 107 and passes through the wiring harness tube 113. The screw 110 rotates to drive the movable block 112 to move, and drives the wiring harness tube 113 to move, so as to achieve the purpose of adjusting the position of the wiring harness.

[0023] Among them, the knob 111 is fixedly connected to the screw rod 110 and is located at one end of the screw rod 110, the moving block 112 is threadedly connected to the screw rod 110 and is located in the middle of the screw rod 110, and the wiring harness tube 113 is detachably connected to the moving block 112 and is located above the moving block 112. By rotating the knob 111, the screw rod 110 is driven to rotate, and the rotation of the screw rod 110 drives the moving block 112 to move, and the moving block 112 drives the wiring harness tube 113, thereby achieving the purpose of adjusting the position of wiring harnesses of different lengths.

[0024] Secondly, one end of the support column 114 is fixedly connected to the cylinder head 101 and is located inside the cylinder head 101, the fixing block 115 is fixedly connected to the support column 114 and is located at the other end of the support column 114, the connecting nail 116 is detachably connected to the fixing block 115 and is located above the fixing block 115, the support column 114 fixes the position of the fixing block 115 relative to the cylinder head 101, the connecting nail 116 fixes the fixing block 115 and the support column 114, and the fixing block 115 fixes the relative position of the housing 107 and the cylinder head 101, thereby achieving the purpose of fixing the housing 107.

[0025] At the same time, the locking block 117 is fixedly connected to the cylinder head 101 and is located inside the cylinder head 101. The solenoid valve 105 is detachably connected to the cylinder head 101 and is located inside the cylinder head 101. The locking block 117 is provided to facilitate the subsequent installation of the whole. The solenoid valve 105 can control the output and output efficiency of the injector 104.

[0026] A diesel engine fuel injector installation structure using the present embodiment is provided with a cylinder head 101, a fixing column 102, a wiring harness connector 103, a fuel injector 104, a connecting pipe 106, a housing 107, a connecting block 108, a moving groove 109, a screw 110, a knob 111, a moving block 112, a wiring harness pipe 113, a support column 114, a fixing block 115, a connecting pin 116, a locking block 117 and a solenoid valve 105. The cylinder head 101 is fixedly connected to the fixing column 102. The wiring harness connector 103 is detachably connected to the fixing column 102 and is located at one end of the fixing column 102. The fuel injector 104 is detachably connected to the cylinder head 101 and is located inside the cylinder head 101. The connecting pipe 106 is fixedly connected to the cylinder head 101 and is located inside the cylinder head 101. The housing 107 is fixedly connected to the connecting pipe 106 and is located inside the connecting pipe 10 6, the connecting block 108 is fixedly connected to the shell 107 and is located on one side of the shell 107, the moving groove 109 is located at the lower end of the shell 107, the screw 110 is rotatably connected to the connecting block 108 and passes through the connecting block 108, the wiring harness enters the shell 107 and passes through the wiring harness tube 113, and the screw 110 is driven to rotate by rotating the knob 111, the connecting block 108 fixes the relative position of the screw 110 and the shell 107, the screw 110 drives the moving block 112 to move, the moving block 112 moves in the moving groove 109, and drives the wiring harness tube 113 to move, the wiring harness enters the shell 107, passes through the wiring harness tube 113, and enters the wiring harness connector 103 through the connecting tube 106, so that the position of different wiring harnesses can be controlled, which solves the technical problem of the wiring harness during use caused by the different lengths of the wiring harnesses and the inability to flexibly adjust the wiring harness bracket.

[0027] The second embodiment of the present application is:

[0028] Based on the first embodiment, please refer to Figure 4 ,in Figure 4 It is a structural schematic diagram of the second embodiment of the utility model.

[0029] The utility model provides a diesel engine injector installation structure including a sealing ring 201, a protective shell 202 and a harness hole 203. The above-mentioned solution solves the problem in the prior art that the internal high temperature and high pressure generated during operation affects the solenoid valve 105, thereby causing the equipment to fail to work.

[0030] Among them, the sealing ring 201 is movably connected to the cylinder head 101 and is located inside the cylinder head 101. The protective shell 202 is detachably connected to the sealing ring 201 and is located above the sealing ring 201. The protective shell 202 covers the solenoid valve 105. The wiring harness hole 203 is located on one side of the protective shell 202, and the wiring harness passes through the wiring harness hole 203. The protective shell 202 prevents the solenoid valve 105 from being affected by vibration and impact of internal parts. The sealing ring 201 ensures the airtightness of the inside of the protective shell 202, thereby achieving the purpose of protecting the solenoid valve 105.

[0031] A mounting structure of a diesel engine injector using the present embodiment is provided with the sealing ring 201, the protective shell 202 and the harness hole 203. The protective shell 202 has the harness hole 203, and the harness can pass through the harness hole 203 into the housing 107. The sealing ring 201 increases the airtightness inside the protective shell 202, and increases the protective performance of the protective shell 202. The protective shell 202 prevents the solenoid valve 105 from being damaged by high temperature, vibration and impact, thereby solving the problem that the internal high temperature and high pressure generated during operation affects the solenoid valve 105, thereby causing the equipment to fail to work.

[0032] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.

Claims

1. A diesel engine fuel injector installation structure, comprising a cylinder head, a fixing column, a wiring harness connector and a fuel injector, wherein the cylinder head is fixedly connected to the fixing column and is located at one end of the fixing column, the wiring harness connector is detachably connected to the fixing column and is located at the other end of the fixing column, the fuel injector is detachably connected to the cylinder head and is located inside the cylinder head, characterized in that: It also includes a wire harness bracket, which includes a connecting pipe, a shell, a connecting block, a movable groove, a screw and a mounting assembly. The connecting pipe is fixedly connected to the cylinder head and is located inside the cylinder head. The shell is fixedly connected to the connecting pipe and is located at one end of the connecting pipe. The connecting block is fixedly connected to the shell and is located on one side of the shell. The movable groove is located at the lower end of the shell. The screw is rotatably connected to the connecting block and passes through the connecting block.

2. The diesel engine injector installation structure according to claim 1, characterized in that: The wiring harness bracket also includes a knob, a moving block and a wiring harness tube. The knob is fixedly connected to the screw and is located at one end of the screw. The moving block is threadedly connected to the screw and is located in the middle of the screw. The wiring harness tube is detachably connected to the moving block and is located above the moving block.

3. The diesel engine injector installation structure according to claim 1, characterized in that: The mounting assembly includes a support column, a fixing block and a connecting nail. One end of the support column is fixedly connected to the cylinder head and is located inside the cylinder head. The fixing block is fixedly connected to the support column and is located at the other end of the support column. The connecting nail is detachably connected to the fixing block and is located above the fixing block.

4. The diesel engine injector installation structure according to claim 1, characterized in that: The mounting assembly further comprises a locking block and a solenoid valve, wherein the locking block is fixedly connected to the cylinder head and is located inside the cylinder head, and the solenoid valve is detachably connected to the cylinder head and is located inside the cylinder head.

5. The diesel engine injector mounting structure according to claim 4, characterized in that: The installation structure of the diesel engine injector also includes a sealing ring, a protective shell and a wiring harness hole. The sealing ring is movably connected to the cylinder head and is located inside the cylinder head. The protective shell is detachably connected to the sealing ring and is located above the sealing ring. The protective shell covers the solenoid valve, and the wiring harness hole is located on one side of the protective shell.

Images