Oil sprayer shell sealing and assembling structure

Abstract

The utility model provides an oil sprayer shell sealing and assembling structure which comprises an oil sprayer body and a valve, oil sprayer shell bodies are arranged on the left side and the right side of the outer surface of the oil sprayer body respectively, and assembling mechanisms are arranged on the upper sides and the lower sides of the front side and the back side of the oil sprayer shell bodies respectively. The assembling mechanism comprises a square inserting groove, a square inserting block, a connecting base, a swing plate, a circular inserting rod, a connecting block, a rotating block and a circular inserting groove, and a valve element is arranged at the top of the valve. The fuel injector shell body cannot be detached in time to replace or maintain the fuel injector body and the valve in the fuel injector shell body, the whole device is prevented from being replaced completely, the cost is reduced, the fuel injector body and the valve can be sealed and protected, and fuel is prevented from leaking to the outside.

Description

Technical Field

[0001] The utility model relates to a fuel injector housing sealing assembly structure, belonging to the technical field of fuel injectors. Background Art

[0002] The 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 injector receives the injection pulse signal sent by the ECU and accurately controls the fuel injection amount. The spray characteristics of the 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 number: CN 211230677 U) discloses a fuel injector, including a fuel injector body, a fuel injection channel that can be opened and closed is arranged in the fuel injector body, a spray hole is arranged on one end of the fuel injection channel, a filter screen is arranged outside the outlet of the spray hole of the fuel injector body, and an atomization chamber is formed between the filter screen and the outlet of the spray hole;

[0004] The fuel injector is provided with a spray hole at one end of the fuel injection channel discharge, and a filter screen is arranged outside the spray hole, so that the once-atomized oil material sprayed by the spray hole can hit the filter screen, so that the oil material reaches a sputtering effect, so that part of the oil material is trapped in the atomizing chamber, and the part of the oil material passing through the filter screen is limited by the mesh on the filter screen, so that the oil material particles are smaller. In addition, because the oil material rebounded in the atomizing chamber is partially limited by the filter screen, the atomizing chamber is obviously pressurized, and the oil material after the secondary atomization in the atomizing chamber is broken again when passing through the filter screen again, the atomization rate is improved, and then the combustion rate of the engine is improved and the power output is improved, but the fuel injector housing in the above-mentioned patent is not easy to assemble, and the requirements for the process are relatively high, and when the parts inside the fuel injector housing are damaged, it is also impossible to disassemble and repair the parts inside in time, and the whole fuel injector can only be replaced, and the cost is relatively high, which is not conducive to people's use.

[0005] To this end, a fuel injector housing sealing assembly structure is proposed. Utility Model Content

[0006] In view of this, the utility model provides a fuel injector housing sealing assembly structure 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: an injector housing sealing assembly structure, comprising an injector body and a valve, wherein the injector housing body is arranged on both the left and right sides of the outer surface of the injector body, and the upper and lower sides of the front and back sides of the injector housing body are arranged with assembly mechanisms, the assembly mechanism comprises a square slot, a square plug block, a connecting base, a swing plate, a round plug rod, a connecting block, a rotating block and a round slot, and a valve core is arranged on the top of the valve.

[0008] Further preferably, the square slot is opened on the right side of the injector housing body located on the left side, the square plug block is fixedly connected to the left side of the injector housing body located on the right side, and the square plug block is plugged into the inner side of the square slot, the connecting base is fixedly connected to the outer side of the injector housing body located on the right side, the swing plate is rotatably connected to the inner side of the connecting base through a rotating shaft, the circular plug rod is fixedly connected to the inner side of the swing plate, the connecting block is fixedly connected to the outer side of the connecting base, the rotating block is rotatably connected to the outer side of the connecting block through a rotating shaft, and the inner side of the rotating block is fitted with the outer side of the swing plate, the circular slot is opened on the outer surface of the square plug block, and the circular plug rod is plugged into the inner side of the circular slot.

[0009] Further preferably, a circular groove having the same size as the circular slot is formed on the outer surface of the injector housing body on the left side, and the circular insertion rod is inserted into the inner side of the circular slot through the circular groove.

[0010] Further preferably, a notch is provided on the inner surface of the swing plate, and the connecting block passes through the inner side of the notch.

[0011] Further preferably, both left and right sides of the top of the injector housing body are provided with semicircular grooves, and the outer surface of the valve core fits with the inner side of the semicircular grooves.

[0012] Further preferably, an arc-shaped groove is provided at the bottom of the right side of the injector housing body located on the left side, an arc-shaped plate is fixedly connected to the left side of the injector housing body located on the right side, a sealing ring is bonded to the left side of the arc-shaped plate by PP glue, and the sealing ring and the arc-shaped plate are both clamped to the inner side of the arc-shaped groove.

[0013] Further preferably, the back side of the inner cavity of the fuel injector housing body on the left and the front side of the inner cavity of the fuel injector housing body on the right are both bonded with leak-proof pads by PP glue, and the material of the leak-proof pads is sponge.

[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 can facilitate the rapid assembly and disassembly of the fuel injector housing bodies on the left and right sides by providing an assembly mechanism, so as to avoid the failure to timely disassemble the fuel injector housing body to replace or repair the fuel injector body and valve inside the fuel injector housing body when the fuel injector body and valve are damaged, and to prevent the entire device from being completely replaced, thereby reducing costs. In addition, the fuel injector body and valve can be sealed and protected to prevent oil from leaking to the outside.

[0016] Second, the utility model can facilitate the insertion of the circular plug rod into the inner side of the circular slot by providing a circular groove, thereby completing the assembly of the injector housing body on the left and right sides; by providing a notch, it can facilitate the rotation of the rotating block, and the swing plate can swing freely after the rotation; by providing a semicircular groove, it can facilitate the connection between the valve core and the valve; by providing an arc groove and an arc plate, the injector body can be supported; by providing a sealing ring, oil can be prevented from leaking from the bottom of the injector housing body; by providing a leak-proof pad, the sealing of the injector housing body can be further improved, thereby enhancing the anti-leakage effect of the injector housing body.

[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 schematic diagram of the front structure of the main body of the utility model;

[0020] Figure 2 It is an exploded view of the fuel injector body and the fuel injector housing body of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the right fuel injector housing of the utility model in a disassembled state;

[0022] Figure 4 This is a front view structural diagram of the right fuel injector housing of the utility model;

[0023] Figure 5 For the utility model Figure 4 A in the middle is an enlarged view;

[0024] Figure 6 It is a structural schematic diagram of the left fuel injector housing of the utility model in a disassembled state.

[0025] Figure numerals: 1. injector body; 2. valve; 3. injector housing body; 4. assembly mechanism; 401. square slot; 402. square plug block; 403. connecting base; 404. swing plate; 405. round plug rod; 406. connecting block; 407. rotating block; 408. round slot; 5. round groove; 6. notch; 7. valve core; 8. semicircular groove; 9. arc groove; 10. arc plate; 11. sealing ring; 12. leak-proof pad. DETAILED DESCRIPTION

[0026] 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.

[0027] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0028] Example 1

[0029] like Figure 1-6As shown, the embodiment of the utility model provides a fuel injector housing sealing assembly structure, including a fuel injector body 1 and a valve 2, fuel injector housing bodies 3 are arranged on the left and right sides of the outer surface of the fuel injector body 1, and assembly mechanisms 4 are arranged on the upper and lower sides of the front and back sides of the fuel injector housing body 3, and the assembly mechanism 4 includes a square slot 401, a square plug block 402, a connecting base 403, a swing plate 404, a round plug rod 405, a connecting block 406, a rotating block 407 and a round slot 408. A valve core 7 is arranged on the top of the valve 2, and the square slot 401 is opened on the right side of the fuel injector housing body 3 located on the left side, and the square plug block 402 is fixedly connected to the left side of the fuel injector housing body 3 located on the right side, and the square plug block 402 is plugged into the inner side of the square slot 401. The connecting base 403 is fixedly connected to the outer side of the injector housing body 3 located on the right side, the swing plate 404 is rotatably connected to the inner side of the connecting base 403 through a rotating shaft, the circular plug rod 405 is fixedly connected to the inner side of the swing plate 404, the connecting block 406 is fixedly connected to the outer side of the connecting base 403, the rotating block 407 is rotatably connected to the outer side of the connecting block 406 through a rotating shaft, and the inner side of the rotating block 407 is fitted with the outer side of the swing plate 404, the circular slot 408 is opened on the outer surface of the square plug block 402, and the circular plug rod 405 is plugged into the inner side of the circular slot 408, and the outer surface of the injector housing body 3 located on the left side is provided with a circular groove 5 of the same size as the circular slot 408, and the circular plug rod 405 is plugged into the inner side of the circular slot 408 through the circular groove 5.

[0030] By setting up the assembly mechanism 4, the injector housing body 3 on the left and right sides can be quickly assembled and disassembled, so that when the injector body 1 and the valve 2 are damaged, it is not possible to disassemble the injector housing body 3 in time to replace or repair the injector body 1 and the valve 2 inside, thereby preventing the entire device from being completely replaced, reducing costs, and also sealing and protecting the injector body 1 and the valve 2 to prevent oil from leaking to the outside.

[0031] Example 2

[0032] In one embodiment, a slot 6 is provided on the inner surface of the swing plate 404, and the connecting block 406 passes through the inner side of the slot 6, semicircular slots 8 are provided on both the left and right sides of the top of the injector housing body 3, and the outer surface of the valve core 7 fits with the inner side of the semicircular slot 8, an arcuate slot 9 is provided on the bottom of the right side of the injector housing body 3 on the left, an arcuate plate 10 is fixedly connected to the left side of the injector housing body 3 on the right, a sealing ring 11 is bonded to the left side of the arcuate plate 10 by PP glue, and the sealing ring 11 and the arcuate plate 10 are both snapped to the inner side of the arcuate slot 9, and a leak-proof pad 12 is bonded to the back side of the inner cavity of the injector housing body 3 on the left and the front side of the inner cavity of the injector housing body 3 on the right by PP glue, and the leak-proof pad 12 is made of sponge.

[0033] By providing the circular groove 5, the circular plug rod 405 can be conveniently inserted into the inner side of the circular slot 408, thereby completing the assembly of the injector housing body 3 on the left and right sides. By providing the notch 6, the rotating block 407 can be conveniently rotated, and the swing plate 404 can swing freely after the rotation. By providing the semicircular groove 8, the valve core 7 can be conveniently connected to the valve 2. By providing the arc groove 9 and the arc plate 10, the injector body 1 can be supported. By providing the sealing ring 11, the oil can be prevented from leaking from the bottom of the injector housing body 3. By providing the anti-leakage pad 12, the sealing performance of the injector housing body 3 can be further improved, thereby enhancing the anti-leakage effect of the injector housing body 3.

[0034] The utility model is in operation: first, when it is necessary to disassemble the two groups of injector housing bodies 3, by rotating the rotating block 407, the rotating block 407 is turned from a vertical state to a horizontal state, and then the swing plate 404 is rotated to make the swing plate 404 swing. During the swinging process, the swing plate 404 drives the circular plug rod 405 to disengage from the circular slot 408 and the inner side of the circular groove 5, and the circular plug rod 405 is released from the limit of the square plug block 402. At this time, the injector housing body 3 located on the right is moved to the right, so that The two groups of injector housing bodies 3 are separated, and the disassembly of the injector housing bodies 3 is completed. When the two groups of injector housing bodies 3 need to be reassembled, the square plug block 402 is plugged into the inner side of the square slot 401, and the swing plate 404 is rotated to make the swing plate 404 swing, and during the swinging process, the round plug rod 405 is driven to be plugged into the inner side of the round slot 408 through the round groove 5, so that the square plug block 402 can be limited, thereby completing the assembly work between the two groups of injector housing bodies 3.

[0035] 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 fuel injector housing sealing assembly structure, characterized in that: The invention comprises an injector body (1) and a valve (2), wherein the injector body (1) is provided with an injector housing body (3) on both the left and right sides of the outer surface, and the injector housing body (3) is provided with an assembly mechanism (4) on both the upper and lower sides of the front and back sides, wherein the assembly mechanism (4) comprises a square slot (401), a square plug block (402), a connecting base (403), a swing plate (404), a round plug rod (405), a connecting block (406), a rotating block (407) and a round slot (408), and a valve core (7) is provided on the top of the valve (2).

2. The fuel injector housing seal assembly structure according to claim 1, characterized in that: The square slot (401) is opened on the right side of the fuel injector housing body (3) located on the left side, the square plug block (402) is fixedly connected to the left side of the fuel injector housing body (3) located on the right side, and the square plug block (402) is plugged into the inner side of the square slot (401), the connecting base (403) is fixedly connected to the outer side of the fuel injector housing body (3) located on the right side, the swing plate (404) is rotatably connected to the inner side of the connecting base (403) via a rotating shaft, and the round plug rod ( The square plug-in block (402) is fixedly connected to the inner side of the swing plate (404), the connecting block (406) is fixedly connected to the outer side of the connecting base (403), the rotating block (407) is rotatably connected to the outer side of the connecting block (406) via a rotating shaft, and the inner side of the rotating block (407) is in contact with the outer side of the swing plate (404), the circular slot (408) is opened on the outer surface of the square plug-in block (402), and the circular plug-in rod (405) is plugged into the inner side of the circular slot (408).

3. The fuel injector housing seal assembly structure according to claim 2, characterized in that: A circular groove (5) having the same size as the circular slot (408) is provided on the outer surface of the injector housing body (3) located on the left side, and the circular insertion rod (405) is inserted into the inner side of the circular slot (408) through the circular groove (5).

4. The fuel injector housing seal assembly structure according to claim 2, characterized in that: The inner surface of the swing plate (404) is provided with a notch (6), and the connecting block (406) passes through the inner side of the notch (6).

5. The fuel injector housing seal assembly structure according to claim 1, characterized in that: Semicircular grooves (8) are provided on both left and right sides of the top of the injector housing body (3), and the outer surface of the valve core (7) fits the inner side of the semicircular groove (8).

6. The fuel injector housing seal assembly structure according to claim 1, characterized in that: An arc-shaped groove (9) is provided at the bottom of the right side of the fuel injector housing body (3) located on the left side, and an arc-shaped plate (10) is fixedly connected to the left side of the fuel injector housing body (3) located on the right side. A sealing ring (11) is bonded to the left side of the arc-shaped plate (10) by PP glue, and the sealing ring (11) and the arc-shaped plate (10) are both clamped to the inner side of the arc-shaped groove (9).

7. The fuel injector housing seal assembly structure according to claim 1, characterized in that: The back side of the inner cavity of the fuel injector housing body (3) located on the left side and the front side of the inner cavity of the fuel injector housing body (3) located on the right side are both bonded with a leak-proof pad (12) by PP glue, and the material of the leak-proof pad (12) is sponge.

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