High-precision oil nozzle convenient to disassemble

Abstract

The utility model relates to the technical field of oil nozzles, and discloses a high-precision oil nozzle convenient to disassemble, which comprises an oil nozzle body, a threaded ring in threaded connection with the oil nozzle body, and a rotating ring rotationally connected with the outer wall of the threaded ring, a T-shaped groove is formed in the side, away from the rotating ring, of the fixing block, an inserting block is slidably connected into the T-shaped groove, a limiting assembly is arranged on the inserting block, a telescopic rod is fixedly connected to the bottom of the inserting block, and an elastic plate is fixedly connected to the lower end of the telescopic rod. According to the high-precision oil nozzle convenient to disassemble, after an insertion block is inserted into a T-shaped groove in a fixing block, the insertion block is fixed through a limiting assembly, so that the insertion block can be effectively prevented from falling off from the fixing block in the process that the oil nozzle is disassembled by a worker, and after an elastic plate at one end of a telescopic rod abuts against an oil conveying pipe or an engine shell by adjusting the length of the telescopic rod, the insertion block is fixed; and the oil nozzle body can be pulled out by screwing the threaded ring, so that the oil nozzle is more convenient to disassemble.

Description

TECHNICAL FIELD

[0001] The utility model relates to fuel injection nozzle technical field, concretely to a high-precision fuel injection nozzle convenient to disassemble. BACKGROUND

[0002] The fuel injection nozzle is a normally closed valve (the normally closed valve means that when there is no input control signal, the valve is always in the closed state; and the normally open valve means that when there is no input control signal, the valve is always in the open state), the opening and closing of the valve are controlled by the up-down movement of a valve needle, when the ECU issues a fuel injection instruction, the voltage signal will make the current flow through the coil in the fuel injection nozzle, a magnetic field is generated to suck up the valve needle, the valve is opened to make the oil be sprayed from the oil injection hole, the maximum advantage of fuel injection is that the control of fuel supply is very accurate, the engine can have the correct air-fuel ratio in any state, not only makes the engine keep smooth operation, but also the exhaust gas can meet the specifications of environmental protection regulations;

[0003] In the prior art, the patent number CN218347479U proposes a high-precision fuel injection nozzle convenient to disassemble, the technical scheme relates to the fuel injection nozzle technical field, and discloses a high-precision fuel injection nozzle convenient to disassemble, which comprises a fuel injection nozzle body, a fixed threaded ring is fixedly connected to the periphery of the fuel injection nozzle body, the fixed threaded ring is threadedly connected with a movable threaded ring, an annular groove is formed in the outer side of the movable threaded ring, a rotating ring is movably connected in the annular groove, auxiliary plates are symmetrically and fixedly connected to the side surfaces of the rotating ring, a limiting groove communicating with the outside is formed in the side of the auxiliary plate away from the fixed threaded ring, limiting plates adapted to the limiting groove are fixedly connected to the symmetric side surfaces of the support column, and the limiting plates are placed in the limiting groove.

[0004] However, when the fuel injection nozzle of the prior art is disassembled, the limiting plates on the support column are inserted into the limiting grooves on the auxiliary plates, the movable threaded ring is twisted, and the fuel injection nozzle body can be pulled out, after the limiting plates are inserted into the limiting grooves, since there is no fixing device for the limiting plates in the limiting grooves, the limiting plates are easy to fall off from the limiting grooves, thereby affecting the disassembly efficiency of the fuel injection nozzle by the workers;

[0005] To solve the above problems, a high-precision fuel injection nozzle convenient to disassemble is proposed in the present application. UTILITY MODEL CONTENTS

[0006] The utility model intends to provide a convenient to detach high accuracy fuel nozzle, mainly for solving the existing fuel nozzle is removed, the limiting plate is inserted into the inside of limiting groove, because the inside of limiting groove does not have the fixing device of limiting plate, causes the limiting plate to be very easy to fall off from the inside of limiting groove, thereby influence the problem of staff to fuel nozzle dismounting efficiency.

[0007] To solve the above technical problems, the utility model provides the following technical scheme:

[0008] A kind of convenient to detach high accuracy fuel nozzle, including fuel nozzle body, threaded ring connected on fuel nozzle body by screw thread and rotating ring connected on the outer wall of threaded ring, the outer wall of rotating ring is fixedly connected with symmetrical fixed block, T-shaped slot is set on the side of fixed block away from rotating ring, slidingly connected with plug in the inside of T-shaped slot, limiting assembly is arranged on plug, fixed block is fixedly connected with telescopic rod on the bottom of plug, and elastic plate is fixedly connected at the lower end of telescopic rod.

[0009] The working principle and beneficial effects of the utility model are as follows:

[0010] 1, working principle: when needing to dismount fuel nozzle body, (the position of movable threaded ring on fixed threaded ring is adjusted, and the adjustment mode is also very simple, threaded thread is provided on movable threaded ring and fixed threaded ring, movable threaded ring is adjusted to be away from the end of fuel nozzle body to be pulled out), in the bracket, it is prior art, and it is not described in detail in the present application file, plug is inserted into T-shaped slot on fixed block, and plug is fixed by limiting assembly, the length of telescopic rod is adjusted, so that the elastic plate at one end of telescopic rod abuts against oil pipe or engine shell, which end needs to be dismounted is abutted at the corresponding position, and the threaded ring is rotated to the end of fuel nozzle body to be pulled out, so that fuel nozzle body can be pulled out.

[0011] 2, beneficial effects: after plug is inserted into T-shaped slot on fixed block, plug is fixed by limiting assembly, so that the staff can be effectively prevented from falling off from fixed block during dismounting fuel nozzle, after the length of telescopic rod is adjusted so that the elastic plate at one end of telescopic rod abuts against oil pipe or engine shell, the threaded ring is screwed, so that fuel nozzle body can be pulled out, so that the dismounting of fuel nozzle is more convenient.

[0012] Preferably, the limiting assembly comprises slide cavities opened on both sides of the plug block, a wedge-shaped block is slidably connected inside the slide cavities, one side of the wedge-shaped block extends out of the plug block, the other side is fixedly connected with a spring, the other end of the spring is fixedly connected with the inner wall of the slide cavity, the limiting grooves matched with the wedge-shaped block are opened on both sides of the fixed block, a button is slidably connected inside the limiting grooves, one side of the button extends out of the fixed block, the other side is arranged in abutment with the wedge-shaped block, when the plug block is inserted into the T-shaped slot on the fixed block, the inner wall of the T-shaped slot will extrude the wedge-shaped block to make it slide into the slide cavity, at the same time, the spring is extruded and is in a compressed state, when the plug block completely enters the inside of the T-shaped slot, the wedge-shaped block will be popped out under the action of the spring and can be connected with the limiting grooves on the fixed block, that is, the plug block can be better fixed, then after the elastic plate at one end of the telescopic rod is pressed against the oil pipe or the engine shell, the threaded ring is twisted, the fuel injector body can be pulled out, at the same time, the buttons on both sides of the fixed block are pressed to push the wedge-shaped block to slide into the slide cavity, when the wedge-shaped block is separated from the limiting grooves, the plug block can be disassembled from the fixed block.

[0013] Preferably, the telescopic rod comprises a sleeve rod fixedly connected to the bottom of the plug block, a slide rod is slidably connected to the lower end of the sleeve rod, the lower end of the slide rod is fixedly connected with the elastic plate, the lower end of one side of the sleeve rod penetrates a limiting bolt, and the limiting bolt is threadedly connected with the sleeve rod, after the plug block is fixed on the fixed block, the limiting bolt is rotated to loosen, then the slide rod is slid, when the elastic plate at one end of the slide rod is pressed against the oil pipe or the engine shell, the limiting bolt is tightened to fix the slide rod, at this time, the threaded ring is twisted to pull out the fuel injector body.

[0014] Preferably, the buttons are fixedly connected with slide blocks on both sides, slide grooves matched with the slide blocks are opened on the inner wall of the limiting grooves, when the button slides inside the limiting grooves, the slide blocks arranged on both sides of the button and the slide grooves opened on the inner wall of the limiting grooves can better limit and guide the button, so that the stability of the button when sliding inside the limiting grooves is higher, and the button can be effectively prevented from separating from the limiting grooves.

[0015] Preferably, a plurality of grooves matched with the limiting bolt are opened on one side of the slide rod, and the grooves are linearly and equidistantly distributed on the slide rod, after the limiting bolt is tightened and one end of the limiting bolt is inserted into the groove, the slide rod can be better fixed, so that people can more conveniently disassemble the fuel injector.

[0016] Preferably, guide blocks are fixedly connected to the upper ends of both sides of the slide rod, guide grooves matched with the guide blocks are opened on the inner wall of the sleeve rod, when the slide rod slides inside the sleeve rod, the guide blocks arranged on the slide rod and the guide grooves opened on the inner wall of the sleeve rod can better limit and guide the slide rod, so that the stability of the slide rod when sliding inside the sleeve rod is higher, and the slide rod can be effectively prevented from separating from the sleeve rod, thereby effectively ensuring the normal use of the device.

[0017] Preferably, one end of the limiting bolt is fixedly connected with a knob, the knob is in the shape of plum blossom, and an anti-skid sleeve is arranged on the outer wall of the knob. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the overall structure of the thread ring, rotating ring and telescopic rod of the utility model;

[0020] Figure 3 It is a schematic diagram of the enlarged partial cross-sectional structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the enlarged partial cross-sectional structure of the utility model; Figure 3 It is a schematic diagram of the enlarged partial cross-sectional structure of the utility model;

[0022] In the figure: 1, oil nozzle body; 2, thread ring; 3, rotating ring; 4, fixed block; 5, T-shaped groove; 6, plug-in block; 7, telescopic rod; 8, elastic plate; 9, sliding cavity; 10, wedge-shaped block; 11, spring; 12, limiting groove; 13, button; 14, sleeve rod; 15, sliding rod; 16, limiting bolt; 17, sliding block; 18, sliding groove; 19, recess; 20, guide block; 21, guide groove. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Please refer to Figures 1-4The utility model provides a high-precision oil nozzle of convenient dismounting, including the oil nozzle body 1, the threaded ring 2 of threaded connection on the oil nozzle body 1 and the rotation ring 3 of rotation connection on the outer wall of threaded ring 2, the oil nozzle body 1 is equipped with the thread tooth of adaptation with threaded ring 2, when dismounting the oil nozzle body 1, rotates threaded ring 2 and makes it move to the end far from the oil nozzle body 1 that needs to pull out, the outer wall of rotation ring 3 is fixedly connected with the fixed block 4 that is symmetrical, the side far from rotation ring 3 of fixed block 4 is equipped with T-shaped slot 5, the inside of T-shaped slot 5 is slidably connected with the plug 6, the plug 6 is provided with the limiting assembly, after the plug 6 is inserted into the inside of T-shaped slot 5 on the fixed block 4, the plug 6 is fixed through the limiting assembly, the bottom of plug 6 is fixedly connected with the telescopic link 7, the lower end of telescopic link 7 is fixedly connected with the elastic plate 8, the length of telescopic link 7 is adjusted, and the elastic plate 8 at one end of telescopic link 7 is pressed against the oil pipe or the engine shell, needs to dismount which end and is pressed in the corresponding position, rotates threaded ring 2 to the end that needs to pull out the oil nozzle body 1, and the oil nozzle body 1 can be pulled out.

[0025] As Figure 3 and Figure 4 Limiting assembly includes the slide cavity 9 of the both sides of plug 6, the inside of slide cavity 9 is slidably connected with the wedge block 10, the one side of wedge block 10 extends out plug 6, the other side is fixedly connected with spring 11, the other end of spring 11 is fixedly connected with the inner wall of slide cavity 9, the both sides of fixed block 4 are equipped with the limiting slot 12 matched with wedge block 10, when the plug 6 is inserted into T-shaped slot 5 on the fixed block 4, the inner wall of T-shaped slot 5 will extrude wedge block 10 and make it slide to the inside of slide cavity 9, simultaneously extrude spring 11 and make it be in compression state, when the plug 6 is completely entered the inside of T-shaped slot 5, wedge block 10 will pop out under the action of spring 11 and can be connected with the limiting slot 12 on the fixed block 4, can play the better fixed effect to plug 6, then after making the elastic plate 8 at one end of telescopic link 7 press against the oil pipe or the engine shell, twists threaded ring 2, the oil nozzle body 1 can be pulled out, the inside of limiting slot 12 is slidably connected with the button 13, the both sides of button 13 are fixedly connected with the sliding block 17, the inner wall of limiting slot 12 is equipped with the sliding slot 18 matched with sliding block 17, can play the better limiting and guiding effect to button 13, so not only can make the stability of button 13 be higher when sliding in the inside of limiting slot 12, but also can effectively prevent button 13 from separating from limiting slot 12, the one side of button 13 extends out fixed block 4, the other side is arranged with wedge block 10, simultaneously pressing the button 13 of the both sides of fixed block 4 can push wedge block 10 to slide to the inside of slide cavity 9, when wedge block 10 separates from limiting slot 12, the plug 6 can be disassembled from the fixed block 4.

[0026] As Figure 3 and Figure 4As shown, the telescopic rod 7 includes the sleeve rod 14 fixedly connected with the bottom of the plug block 6, the lower end of the sleeve rod 14 is slidably connected with the sliding rod 15, the upper end of the two sides of the sliding rod 15 is fixedly connected with the guide block 20, the inner wall of the sleeve rod 14 is provided with the guide groove 21 matched with the guide block 20, which can better limit and guide the sliding rod 15, so that the stability of the sliding rod 15 is higher when sliding in the sleeve rod 14, and the sliding rod 15 can be effectively prevented from being separated from the sleeve rod 14, thereby effectively ensuring the normal use of the device, the lower end of the sliding rod 15 is fixedly connected with the elastic plate 8, the lower end of the one side of the sleeve rod 14 penetrates the limiting bolt 16, and the limiting bolt 16 is threadedly connected with the sleeve rod 14, the one side of the sliding rod 15 is provided with a plurality of recesses 19 matched with the limiting bolt 16, and the recesses 19 are linearly and equidistantly distributed on the sliding rod 15, after the plug block 6 is fixed on the fixed block 4, the limiting bolt 16 is rotated to make one end thereof separated from the recess 19 on the sliding rod 15, then the sliding rod 15 is slid, when the elastic plate 8 at one end of the sliding rod 15 abuts against the oil pipe or the engine shell, the limiting bolt 16 is tightened to make one end thereof inserted into the recess 19 on the sliding rod 15, which can better fix the sliding rod 15, at this time, the threaded ring 2 is screwed, and the oil nozzle body 1 can be pulled out, one end of the limiting bolt 16 is fixedly connected with the knob, the knob is in the shape of plum blossom, which can make the staff more relaxed and labor-saving when rotating the limiting bolt 16, and the outer wall of the knob is sleeved with the anti-skid sleeve, which can increase the friction force between the hands of the staff and the knob, thereby effectively preventing the hands from slipping when rotating the knob.

[0027] From the above, the specific implementation manner of the utility model is as follows:

[0028] When the oil nozzle body 1 needs to be disassembled, the position of the movable threaded ring on the fixed threaded ring is adjusted, and the adjustment manner is also very simple, the threaded teeth matched with each other are formed on the movable threaded ring and the fixed threaded ring, the movable threaded ring is adjusted to be far away from the end of the oil nozzle body which needs to be pulled out, the inner wall of the T-shaped groove 5 extrudes the wedge-shaped block 10 to make it slide into the sliding cavity 9, at the same time, the spring 11 is extruded and is in the compressed state, when the plug block 6 completely enters the inside of the T-shaped groove 5, the wedge-shaped block 10 is popped out under the action of the spring 11 and is connected with the limiting groove 12 on the fixed block 4, that is, the plug block 6 is better fixed, the limiting bolt 16 is rotated to make one end thereof separated from the recess 19 on the sliding rod 15, then the sliding rod 15 is slid, when the elastic plate 8 at one end of the sliding rod 15 abuts against the oil pipe or the engine shell, the limiting bolt 16 is tightened to make one end thereof inserted into the recess 19 on the sliding rod 15, which can better fix the sliding rod 15, preferably, the threaded ring 2 is rotated to the end of the oil nozzle body which needs to be pulled out, and the oil nozzle body 1 can be pulled out, thereby conveniently replacing the oil nozzle.

[0029] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that modifications can be made to the technical solutions described in the foregoing embodiments, or some of the technical features thereof can be replaced equivalently. Any modifications, equivalent replacements, improvements, and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A high-precision fuel injector that is easy to disassemble, comprising a fuel injector body (1), a threaded ring (2) threadedly connected to the fuel injector body (1), and a rotating ring (3) rotatably connected to the outer wall of the threaded ring (2), characterized in that, The outer wall of the rotating ring (3) is fixedly connected with symmetrical fixing blocks (4). A T-shaped groove (5) is provided on the side of the fixing block (4) away from the rotating ring (3). An insert (6) is slidably connected inside the T-shaped groove (5). A limit component is provided on the insert (6). A telescopic rod (7) is fixedly connected to the bottom of the insert (6). An elastic plate (8) is fixedly connected to the lower end of the telescopic rod (7).

2. The high-precision fuel injector that is easy to disassemble according to claim 1, characterized in that: The limiting component includes sliding cavities (9) on both sides of the insert (6), a wedge block (10) is slidably connected inside the sliding cavity (9), the insert (6) extends out from one side of the wedge block (10), and a spring (11) is fixedly connected to the other side. The other end of the spring (11) is fixedly connected to the inner wall of the sliding cavity (9). Limiting grooves (12) matching the wedge block (10) are provided on both sides of the fixing block (4). A button (13) is slidably connected inside the limiting groove (12). The fixing block (4) extends out from one side of the button (13), and the other side abuts against the wedge block (10).

3. The high-precision fuel injector that is easy to disassemble according to claim 1, characterized in that: The telescopic rod (7) includes a sleeve rod (14) fixedly connected to the bottom of the insert (6). The lower end of the sleeve rod (14) is slidably connected to a slide rod (15). The lower end of the slide rod (15) is fixedly connected to the elastic plate (8). A limit bolt (16) passes through the lower end of one side of the sleeve rod (14), and the limit bolt (16) is threadedly connected to the sleeve rod (14).

4. The high-precision fuel injector that is easy to disassemble according to claim 2, characterized in that: Both sides of the button (13) are fixedly connected to sliders (17), and the inner wall of the limiting groove (12) is provided with a groove (18) that matches the slider (17).

5. A high-precision fuel injector that is easy to disassemble according to claim 3, characterized in that: The slide bar (15) has multiple grooves (19) on one side that match the limiting bolts (16), and the grooves (19) are distributed in a linear array at equal intervals on the slide bar (15).

6. A high-precision fuel injector that is easy to disassemble according to claim 3, characterized in that: Guide blocks (20) are fixedly connected to the upper ends of both sides of the slide rod (15), and guide grooves (21) matching the guide blocks (20) are opened on the inner wall of the sleeve rod (14).

7. A high-precision fuel injector that is easy to disassemble according to claim 3, characterized in that: A knob is fixedly connected to one end of the limiting bolt (16). The knob is shaped like a plum blossom and has an anti-slip sleeve on its outer wall.

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