Oil injector with reinforced injection molding appearance

Abstract

The oil injector comprises a valve shell and a flux sleeve, and further comprises a positioning boss fixedly arranged at the bottom of the flux sleeve. The groove is formed outside the valve shell and is used for fixedly mounting the positioning boss; the protection mechanism is arranged outside the valve shell and used for relieving pressure borne by the valve shell and conducting dustproof protection. The positioning ring fixedly sleeves the valve shell, and the bottom surface of the positioning ring is fixedly connected with the dust cover; the movable ring is movably arranged outside the valve shell in a sleeving mode and located below the dust cover; the dustproof part is fixedly arranged on the top surface of the movable ring; the top surface of the sealing cover is fixedly connected with the positioning ring and is positioned outside the dustproof cover; the supporting ring is fixedly connected with the top of the dustproof part; the two ends of the elastic sealing part are fixedly connected with the sealing cover and the supporting ring, and an abutting block is fixedly arranged on the inner wall; and the deformation part is arranged on the supporting ring, and the side edge of the deformation part abuts against the abutting block. In daily production and life, through cooperation of the dustproof cover and the dustproof part, dustproof protection of the oil sprayer is achieved, and impurities are prevented from entering the oil sprayer to affect normal use of the oil sprayer.

Description

Technical Field

[0001] The utility model relates to a fuel injector with a reinforced injection molding shape. Background Art

[0002] The existing fuel injector used in automobiles is actually a simple solenoid valve. When the solenoid coil is energized, suction is generated, the needle valve is sucked up, the spray hole is opened, and the fuel is sprayed out at high speed through the annular gap between the shaft needle at the head of the needle valve and the spray hole, forming a mist, which is conducive to full combustion. The fuel injector is a precision device and needs to be protected during use to prevent external impurities from entering the fuel injector, causing clogging of the fuel injector and affecting the normal use of the fuel injector. At the same time, the sealing effect of the fuel injector needs to be further improved to prevent oil leakage from the fuel injector. Summary of the invention

[0003] The utility model aims to solve one of the technical problems existing in the prior art.

[0004] The present application provides an injector with a reinforced injection-molded shape, comprising a valve housing and a magnetic guide sleeve, and further comprising:

[0005] A positioning boss, which is fixedly arranged at the bottom of the magnetic conductive sleeve;

[0006] A groove, which is arranged outside the valve housing and is used for fixing and installing the positioning boss;

[0007] The protection mechanism is arranged outside the valve housing and is used to reduce the pressure on the valve housing and provide dust protection.

[0008] Protection agencies include:

[0009] A dustproof component, which is used to provide dustproof protection for the valve housing;

[0010] A shock absorbing assembly, which is used to reduce the pressure on the valve housing;

[0011] Wherein, the dustproof component is fixedly connected to the shock absorbing component.

[0012] The dust protection kit includes:

[0013] A positioning ring, the fixed sleeve of which is arranged outside the valve housing, and the bottom surface of which is fixedly connected to the dust cover;

[0014] A movable ring, whose movable sleeve is arranged outside the valve housing and below the dust cover;

[0015] A dustproof part, which is fixed on the top surface of the movable ring;

[0016] Wherein, the shock absorbing assembly is fixedly connected to the positioning ring.

[0017] The shock absorbing components include:

[0018] A sealing cover, the top surface of which is fixedly connected to a positioning ring and is located outside the dust cover;

[0019] A support ring fixedly connected to the top of the dustproof part;

[0020] The elastic sealing part has two ends fixedly connected to the sealing cover and the supporting ring, and an abutment block fixedly arranged on the inner wall;

[0021] The deformation part is arranged on the supporting ring, and the side edge thereof abuts against the abutting block.

[0022] Also includes:

[0023] A round tube, which is fixedly connected to the bottom of the valve housing and has a thread on its outer wall;

[0024] A threaded sleeve, the threaded connection of which is arranged outside the round tube;

[0025] The oil injection nozzle is fixedly connected to the threaded sleeve, and the top thereof passes through a round tube and is connected to the valve housing;

[0026] The rubber ring is fixed on the inner wall of the round tube and fits tightly with the top of the fuel injection nozzle.

[0027] Also includes:

[0028] The socket is fixed on the top of the valve housing, and a fixing block is provided on the outer wall;

[0029] The plug is movably inserted into the socket, and has bent parts fixed on both sides;

[0030] The conductor is arranged on the side of the plug and has a protective cover fixed on the outside;

[0031] Wherein, a clamping block is fixedly arranged at the top end of the bending portion and is movably engaged with a fixing block.

[0032] Also includes:

[0033] An oil port, which is fixedly connected to the top of the valve housing;

[0034] The oil pipe is threadedly connected to the oil port through a threaded head fixed at the end;

[0035] An anti-slip groove is provided on the outer surface of the thread head;

[0036] A sealing ring is arranged between the oil port and the oil pipe.

[0037] The beneficial effects of the utility model are as follows:

[0038] 1. Through the cooperation of the dust cover and the dustproof part, the dust protection of the injector is realized to prevent impurities from entering the injector and affecting the normal use of the injector;

[0039] 2. Through the setting of rubber ring and sealing ring, the fuel injector can be sealed to prevent oil leakage during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1This is a front view of the fuel injector in the embodiment of the present application;

[0041] Figure 2 Based Figure 1 A is an enlarged schematic diagram of the local structure at center A;

[0042] Figure 3 Based Figure 1 A magnified schematic diagram of the local structure at B in the middle;

[0043] Figure 4 Based Figure 1 Enlarged schematic diagram of the local structure at point C in the middle.

[0044] Reference numerals

[0045] 1-valve housing, 2-magnetic sleeve, 3-positioning boss, 4-groove, 5-protection mechanism, 6-dustproof component, 61-positioning ring, 62-dust cover, 63-movable ring, 64-dustproof part, 7-shock absorption component, 71-sealing cover, 72-support ring, 73-elastic sealing part, 74-abutment block, 75-deformation part, 8-round tube, 9-threaded sleeve, 10-injection nozzle, 11-rubber ring, 12-socket, 13-fixed block, 14-plug, 15-bending part, 16-conductor, 17-protective sleeve, 18-clamping block, 19-oil port, 20-oil pipe, 21-anti-slip groove, 22-sealing ring. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0047] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0048] The server provided in the embodiment of the present application is described in detail below through specific embodiments and application scenarios in conjunction with the accompanying drawings.

[0049] Embodiment 1:

[0050] like Figure 1 As shown, an embodiment of the present application provides an injector with an injection-molded reinforced shape, including a valve housing 1 and a magnetic sleeve 2, and also includes a positioning boss 3, which is fixed to the bottom of the magnetic sleeve 2; a groove 4, which is arranged outside the valve housing 1 and is used to fix the positioning boss 3.

[0051] In this embodiment of the present application, due to the adoption of the above-mentioned structure, a groove 4 is provided on the outer surface of the valve housing 1; a positioning boss 3 is fixedly provided on the bottom of the magnetic sleeve 2, and the magnetic sleeve 2 is positioned by installing the positioning boss 3 into the groove 4 to prevent the magnetic sleeve 2 from sliding on the surface of the valve housing 1, and at the same time, the magnetic sleeve 2 can be fixedly connected to the valve housing 1 by laser welding equipment.

[0052] Embodiment 2:

[0053] like Figure 1 to Figure 2 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, a protection mechanism 5 is also included, which is arranged outside the valve housing 1 and is used to reduce the pressure on the valve housing 1 and perform dust protection.

[0054] Furthermore, the protection mechanism 5 includes a dustproof component 6, which is used to implement dustproof protection for the valve housing 1; and a shock-absorbing component 7, which is used to reduce the pressure on the valve housing 1; wherein the dustproof component 6 and the shock-absorbing component 7 are fixedly connected.

[0055] Furthermore, the dustproof assembly 6 includes a positioning ring 61, which is fixedly mounted outside the valve housing 1 and has a bottom surface fixedly connected to a dust cover 62; a movable ring 63, which is movably mounted outside the valve housing 1 and is located below the dust cover 62; and a dustproof portion 64, which is fixedly mounted on the top surface of the movable ring 63; wherein the shock absorbing assembly 7 is fixedly connected to the positioning ring 61.

[0056] Furthermore, the shock absorbing assembly 7 includes a sealing cover 71, the top surface of which is fixedly connected to the positioning ring 61 and is located outside the dust cover 62; a support ring 72, which is fixedly connected to the top of the dustproof part 64; an elastic sealing part 73, both ends of which are fixedly connected to the sealing cover 71 and the support ring 72, and an abutment block 74 is fixedly provided on the inner wall; a deformation part 75, which is arranged on the support ring 72 and abuts against the abutment block 74 on the side.

[0057] In this embodiment of the present application, due to the adoption of the above-mentioned structure, the positioning ring 61 is fixed outside the valve housing 1, and at the same time, the bottom surface of the positioning ring 61 is fixedly connected with a dust cover 62 and a sealing cover 71, the sealing cover 71 is located on the outside of the dust cover 62, and the dust cover 62 is sleeved on the outside of the valve housing 1. Through the arrangement of the dust cover 62 and the sealing cover 71, the valve housing 1 is provided with double-layer dust protection.

[0058] A movable ring 63 is movably sleeved outside the valve housing 1, and the movable ring 63 is movably arranged under the dust cover 62; a dustproof part 64 is fixedly arranged on the top surface of the movable ring 63, and the outer surface of the dustproof part 64 is wavy, and gaps are provided between adjacent corrugations for storing impurities and further playing a dustproof role.

[0059] A support ring 72 is fixedly connected to the top of the dustproof part 64, and the support ring 72 is used to place the deformation part 75. The top of the deformation part 75 is opposite to the bottom end of the dust cover 62. The deformation part 75 can be driven to move by the movement of the support ring 72, and the deformation part 75 is squeezed by the setting of the dust cover 62, so that the deformation part 75 is deformed.

[0060] An elastic sealing portion 73 is fixedly connected to the bottom end of the sealing cover 71, and the bottom end of the elastic sealing portion 73 is fixedly connected to the top surface of the support ring 72. Through the setting of the elastic sealing portion 73, the components between the positioning ring 61 and the support ring 72 are sealed to achieve further sealing; at the same time, the elastic sealing portion 73 is made of a deformable material and can restore its deformation. An abutment block 74 is fixedly installed inside, and the abutment block 74 abuts against the side of the deformation portion 75. The deformation of the deformation portion 75 pushes the abutment block 74 to move, and at the same time, the movement of the abutment block 74 pushes the elastic sealing portion 73 to deform.

[0061] When the housing collides, the elastic sealing cover 71 and the deformation portion 75 can be deformed to buffer the pressure on the valve housing 1 and prevent the valve housing 1 from being damaged.

[0062] Embodiment 3:

[0063] like Figures 1 to 3 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, it also includes a round tube 8, which is fixedly connected to the bottom of the valve housing 1 and has a thread on the outer wall; a threaded sleeve 9, which is threadedly connected to the outside of the round tube 8; an injection nozzle 10, which is fixedly connected to the threaded sleeve 9, and the top passes through the round tube 8 and is connected to the valve housing 1; a rubber ring 11, which is fixedly arranged on the inner wall of the round tube 8 and fits tightly with the top of the injection nozzle 10.

[0064] In this embodiment of the present application, due to the adoption of the above structure, the round tube 8 is fixedly installed at the bottom of the valve housing 1, and a rubber ring 11 is fixedly provided on the inner wall; the round tube 8 is connected to the inside of the valve housing 1, and a thread is provided on the outer wall of the round tube 8.

[0065] A threaded sleeve 9 is fixedly installed on the top of the fuel injector 10, and an internal thread is set on the inner wall of the threaded sleeve 9. The threaded connection between the threaded sleeve 9 and the round tube 8 is realized by setting the internal thread and the thread. At this time, the top of the fuel injector 10 is movably installed in the round tube 8, and the outer wall of the fuel injector 10 is tightly abutted against the inner wall of the rubber ring 11 to seal the fuel injector 10 to prevent oil leakage; the fuel injector 10 is connected to the inside of the valve housing 1, and the atomized spraying of the oil is realized by inputting the oil into the fuel injector 10.

[0066] Embodiment 4:

[0067] like Figures 1 to 4 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, it also includes a socket 12, which is fixedly arranged on the top of the valve housing 1, and a fixing block 13 is provided on the outer wall; a plug 14, which is movably inserted into the socket 12, and a bending portion 15 is fixedly arranged on both sides; a conductor 16, which is arranged on the side of the plug 14, and a protective cover 17 is fixedly arranged on the outside; wherein, a clamping block 18 is fixedly arranged on the top of the bending portion 15 to movably engage with the fixing block 13.

[0068] In this embodiment of the present application, due to the adoption of the above structure, a socket 12 is provided on the top of the valve housing 1, a plug 14 is inserted into the socket 12, and a conductor 16 is connected to the side of the plug 14 to realize the electrification of the injector.

[0069] A fixing block 13 is provided on the side of the socket 12, a bending portion 15 is provided on the side of the socket 12, and a clamping block is fixedly installed on the top of the bending portion 15. By movably engaging the clamping block with the fixing block 13, the installation of the plug 14 is reinforced to prevent the plug 14 from loosening or falling off, which affects the normal use of the injector.

[0070] Embodiment 5:

[0071] like Figure 1 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, it also includes an oil port 19, which is fixedly connected to the top of the valve housing 1; an oil pipe 20, which is threadedly connected to the oil port 19 through a threaded head fixed at the end; an anti-slip groove 21, which is arranged on the outer surface of the threaded head; and a sealing ring 22, which is arranged between the oil port 19 and the oil pipe 20.

[0072] In this embodiment of the present application, due to the adoption of the above-mentioned structure, the oil port 19 is communicated with the interior of the valve housing 1 , and oil is transmitted into the valve housing 1 through the oil port 19 .

[0073] A threaded head is fixedly installed at the end of the oil pipe 20, the inner wall of the threaded head is provided with threads, and the outer wall of the oil port 19 is provided with external threads. The connection between the oil port 19 and the oil pipe 20 is achieved through the setting of the external threads and the internal threads. At the same time, a sealing ring 22 is provided between the oil port 19 and the oil pipe 20 to seal the transmission of oil and prevent leakage of oil during the transmission process.

[0074] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0075] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A fuel injector with a reinforced injection molded shape, comprising a valve housing (1) and a magnetic sleeve (2), characterized in that: Also includes: A positioning boss (3) fixedly arranged at the bottom of the magnetic conductive sleeve (2); A groove (4) is provided outside the valve housing (1) and is used for fixing and mounting the positioning boss (3); The protection mechanism (5) is arranged outside the valve housing (1) and is used to reduce the pressure on the valve housing (1) and to provide dust protection.

2. The fuel injector with injection molding reinforced shape according to claim 1, characterized in that: The protection mechanism (5) comprises: A dustproof component (6) for implementing dustproof protection for the valve housing (1); A shock absorbing assembly (7) for alleviating the pressure on the valve housing (1); The dustproof component (6) is fixedly connected to the shock absorbing component (7).

3. The fuel injector with injection molding reinforced shape according to claim 2, characterized in that: The dustproof component (6) comprises: A positioning ring (61) is fixedly sleeved outside the valve housing (1) and has a bottom surface fixedly connected to a dust cover (62); A movable ring (63) is movably sleeved outside the valve housing (1) and located below the dust cover (62); A dustproof portion (64) fixedly arranged on the top surface of the movable ring (63); Wherein, the shock absorbing assembly (7) is fixedly connected to the positioning ring (61).

4. The fuel injector with injection molding reinforced shape according to claim 3, characterized in that: The shock absorbing assembly (7) comprises: A sealing cover (71), the top surface of which is fixedly connected to the positioning ring (61) and is located outside the dust cover (62); A support ring (72) fixedly connected to the top of the dustproof portion (64); An elastic sealing part (73), the two ends of which are fixedly connected to the sealing cover (71) and the supporting ring (72), and an abutment block (74) is fixedly provided on the inner wall; The deformation part (75) is arranged on the support ring (72), and its side is in abutment with the abutment block (74).

5. The fuel injector with injection molding reinforced shape according to claim 4, characterized in that: Also includes: A round tube (8) which is fixedly connected to the bottom of the valve housing (1) and has a thread on its outer wall; A threaded sleeve (9) is threadedly connected to the outside of the round tube (8); The oil injection nozzle (10) is fixedly connected to the threaded sleeve (9), and the top thereof passes through the round tube (8) and is communicated with the valve housing (1); The rubber ring (11) is fixedly arranged on the inner wall of the circular tube (8) and is closely fitted to the top of the fuel injection nozzle (10).

6. The fuel injector with injection molding reinforced shape according to claim 5, characterized in that: Also includes: A socket (12) is fixedly arranged on the top of the valve housing (1), and a fixing block (13) is arranged on the outer wall; A plug (14) is movably inserted into the socket (12) and has bent portions (15) fixedly provided on both sides; A conductor (16) is arranged on the side of the plug (14) and has a protective cover (17) fixedly arranged on the outside; A clamping block (18) is fixedly provided at the top end of the bending portion (15) and is movably engaged with the fixing block (13).

7. The fuel injector with injection molding reinforced shape according to claim 6, characterized in that: Also includes: An oil port (19) fixedly connected to the top of the valve housing (1); An oil pipe (20) is threadedly connected to the oil port (19) via a threaded head fixed at the end; An anti-slip groove (21) is provided on the outer surface of the thread head; The sealing ring (22) is arranged between the oil port (19) and the oil pipe (20).

Images