Oil injector body

Abstract

The utility model relates to the technical field of oil sprayers, and discloses an oil sprayer body which comprises a first pipe body, an oil spraying assembly is fixedly connected to the top of one end of the first pipe body, the oil spraying assembly comprises an installation pipe, a threaded groove is formed in the top of the installation pipe, and an oil spraying head is arranged above the installation pipe. A threaded column is fixed to the bottom of the fuel injection head, fuel injection holes are formed in the threaded column and the fuel injection head, and when the fuel injector body is maintained, the fixing blocks at the two ends of the fuel injection head are screwed, so that the threaded column at the bottom of the fuel injection head is separated from the threaded groove in the mounting pipe, and the fuel injection head is taken down for maintenance. Compared with a traditional oil sprayer body, the novel oil sprayer body is convenient to disassemble and maintain, and compared with the mode that the whole oil sprayer body is directly replaced, the cost can be saved.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel injectors, in particular to a fuel injector body. Background Art

[0002] In the manufacturing industry of automobile parts, the injector body is a very common simple part that can better control the oil volume and injection action. During the use of the injector, carbon deposits are generated due to impurities in the fuel and poor engine combustion. When the injector head is blocked, it is inconvenient to disassemble, repair and replace the injector body because the injector body cannot be disassembled in the prior art.

[0003] The existing patent (publication number: CN212054957U) proposes an injector body, wherein the side walls on both sides of the tube body are respectively provided with an oil inlet and an oil outlet, and a connecting channel is commonly connected between the oil inlet and the oil outlet, and an oil injection port is provided on the upper side wall of the tube body, and a first channel is provided at the lower end of the oil injection port, and the lower end of the first channel is connected to a second channel.

[0004] The above-mentioned injector body adopts a technical solution to solve the problem of uniform fuel injection by releasing the fuel through the first channel and finally spraying the fuel through the injection port. The injection port is funnel-shaped, which achieves uniform fuel discharge and more complete fuel combustion. The problem with this solution is that although it solves the technical problem of uniform fuel injection, since the injection port is opened on the pipe body, it cannot be replaced or repaired when the injection port is blocked. Therefore, we propose an injector body to solve the above problem. Utility Model Content

[0005] The utility model provides a fuel injector body, which solves the technical problem that the fuel injection hole of the current fuel injector body is blocked and inconvenient to disassemble and replace.

[0006] In order to solve the above technical problems, the utility model provides a fuel injector body, comprising a first tube body, wherein a fuel injection assembly is fixedly connected to the top of one end of the first tube body;

[0007] The fuel injection assembly comprises a mounting tube, a threaded groove is formed in the top of the mounting tube, a fuel injection head is arranged above the mounting tube, a threaded column is fixed at the bottom of the fuel injection head, and fuel injection holes are formed on the threaded column and the fuel injection head.

[0008] Preferably, an annular sealing block is fixed on the top of the mounting tube, and an annular sealing groove is provided at the bottom of the oil spray head and on the periphery of the threaded column.

[0009] The above technical solution is adopted: an annular sealing block is fixed on the top of the mounting tube, and an annular sealing groove is opened at the bottom of the fuel injector head and the periphery of the threaded column to achieve sealing after the fuel injector head and the mounting tube in the fuel injection assembly are connected.

[0010] Preferably, fixing blocks are fixed on both sides of the fuel injection head.

[0011] The above technical solution is adopted: fixing blocks are fixed on both sides of the fuel injection head, and when the fuel injection head needs to be disassembled or installed, the fixing blocks are twisted to achieve quick disassembly and installation.

[0012] Preferably, the size of the annular sealing block matches the size of the annular sealing groove.

[0013] By adopting the above technical solution, the size of the annular sealing block is matched with the size of the annular sealing groove, so that the sealing effect is optimized.

[0014] Preferably, the threaded column and the threaded groove are threadedly connected.

[0015] The above technical solution is adopted: the threaded connection is made through the threaded column and the threaded groove, so that the disassembly and installation are convenient.

[0016] Preferably, a second sealing sleeve is provided between the first tube body and the oil injection assembly.

[0017] By adopting the above technical solution: by arranging a second sealing sleeve between the first tube body and the fuel injection assembly, when the first tube body supplies fuel to the fuel injection assembly, the sealing between the first tube body and the fuel injection assembly can be ensured.

[0018] Preferably, positioning pins are fixed on both sides of the first tube body close to the oil injection assembly.

[0019] By adopting the above technical solution, positioning pins are fixed on both sides of the first tube body close to the fuel injection assembly, and the positioning pins facilitate the fuel injection assembly to be aligned with the engine combustion chamber for installation.

[0020] Preferably, one end of the first tube body away from the fuel injection assembly is threadedly connected to the second tube body, and a first sealing sleeve is sleeved between the first tube body and the second tube body.

[0021] The above technical solution is adopted: the second tube body is threadedly connected to the end of the first tube body away from the fuel injection assembly, the second tube body is connected to the oil tank, and a first sealing sleeve is sleeved between the first tube body and the second tube body, which facilitates the disassembly and maintenance of the first tube body and the second tube body and can also ensure their sealing performance.

[0022] Compared with the related art, the utility model has the following beneficial effects:

[0023] 1. Compared with the traditional fuel injector body, the utility model is provided with a fuel injection assembly, a threaded groove is opened in the top of the mounting tube, a fuel injection head is arranged above the mounting tube, a threaded column is fixed at the bottom of the fuel injection head, and fuel injection holes are opened on the threaded column and the fuel injection head. When the fuel injection hole is blocked due to the long service life of the fuel injector body, the fixing blocks at both ends of the fuel injection head are twisted when the fuel injector body is repaired, so that the threaded column at the bottom of the fuel injection head is separated from the threaded groove on the mounting tube, so that the fuel injection head can be removed for maintenance, or a new fuel injection head can be replaced. Compared with the traditional fuel injector body, the new type is easy to disassemble and maintain, and can save costs compared with directly replacing the entire fuel injector body.

[0024] 2. In the utility model, by providing an annular sealing groove and an annular sealing block, when the fuel injector head is threadedly connected and installed with the mounting pipe, in order to prevent leakage at the connection, the annular sealing block is squeezed into the annular sealing groove to form a closed space, thereby further enhancing the sealing performance of the fuel injector body. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of the structure of the injector body;

[0026] Figure 2 The figure is a top view of the disassembled fuel injection assembly in the fuel injector body;

[0027] Figure 3 This is a disassembled top-down structural diagram of the fuel injection assembly in the injector body.

[0028] Numbers in the figure: 1, first tube body; 2, second tube body; 3, first sealing sleeve; 4, positioning pin; 5, second sealing sleeve; 6, fuel injection assembly; 61, mounting tube; 62, fuel injection head; 63, fixing block; 64, fuel injection hole; 65, threaded column; 66, annular sealing groove; 67, annular sealing block; 68, threaded groove. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with 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 of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0030] Embodiment 1

[0031] like Figure 1-Figure 3 As shown, the fuel injector body comprises a first tube body 1, and a fuel injection assembly 6 is fixedly connected to the top of one end of the first tube body 1;

[0032] The oil injection assembly 6 includes a mounting tube 61, a threaded groove 68 is formed in the top of the mounting tube 61, an oil injection head 62 is disposed above the mounting tube 61, a threaded column 65 is fixed to the bottom of the oil injection head 62, and oil injection holes 64 are formed on the threaded column 65 and the oil injection head 62;

[0033] The top of one end of the first tube body 1 is fixedly connected to an injection assembly 6, through which the engine is injected with fuel during combustion, and the injection assembly 6 is convenient for disassembly, maintenance and replacement;

[0034] The fuel injection assembly 6 includes a mounting tube 61, a threaded groove 68 is provided in the top of the mounting tube 61, a fuel injection head 62 is arranged above the mounting tube 61, a threaded column 65 is fixed to the bottom of the fuel injection head 62, and fuel injection holes 64 are provided on the threaded column 65 and the fuel injection head 62. When repairing the fuel injector body, the fixing blocks 63 at both ends of the fuel injection head 62 are screwed to separate the threaded column 65 at the bottom of the fuel injection head 62 from the threaded groove 68 on the mounting tube 61, so that the fuel injection head 62 can be removed for maintenance, or a new fuel injection head 62 can be replaced. Compared with the traditional fuel injector body, the new type is easy to disassemble and maintain, and can save costs compared to directly replacing the entire fuel injector body.

[0035] Embodiment 2

[0036] like Figure 1-Figure 3 As shown, an annular sealing block 67 is fixed on the top of the mounting tube 61, an annular sealing groove 66 is provided at the bottom of the oil injection head 62 and on the periphery of the threaded column 65, and fixing blocks 63 are fixed on both sides of the oil injection head 62. The size of the annular sealing block 67 matches the size of the annular sealing groove 66, and the threaded column 65 is threadedly connected with the threaded groove 68. A second sealing sleeve 5 is sleeved between the first tube body 1 and the oil injection assembly 6, and positioning pins 4 are fixed on both sides of the first tube body 1 close to the oil injection assembly 6. The end of the first tube body 1 away from the oil injection assembly 6 is threadedly connected with the second tube body 2, and the second tube body 2 is connected to the oil tank, which facilitates the disassembly and maintenance of the first tube body 1 and the second tube body 2. A first sealing sleeve 3 is sleeved between the first tube body 1 and the second tube body 2, which can also ensure its sealing performance;

[0037] An annular sealing block 67 is fixed on the top of the mounting tube 61, and an annular sealing groove 66 is provided at the bottom of the oil spray head 62 and the periphery of the threaded column 65 to achieve sealing after the oil spray head 62 in the oil spray assembly 6 is connected to the mounting tube 61. Fixed blocks 63 are fixed on both sides of the oil spray head 62. When the oil spray head 62 needs to be disassembled or installed, the fixed blocks 63 can be twisted to achieve quick disassembly and installation;

[0038] The size of the annular sealing block 67 is consistent with the size of the annular sealing groove 66, so that the sealing effect is optimized. It is threadedly connected through the threaded column 65 and the threaded groove 68, which is convenient for disassembly and installation. A second sealing sleeve 5 is sleeved between the first tube body 1 and the fuel injection assembly 6. When the first tube body 1 supplies oil to the fuel injection assembly 6, the sealing between the first tube body 1 and the fuel injection assembly 6 can be guaranteed. Positioning pins 4 are fixed on both sides of the first tube body 1 close to the fuel injection assembly 6. The positioning pins 4 facilitate the installation of the fuel injection assembly 6 in alignment with the engine combustion chamber.

[0039] Working principle: Figure 1-3 As shown, when repairing the injector body, the fixing blocks 63 at both ends of the injector head 62 are twisted to separate the threaded column 65 at the bottom of the injector head 62 from the threaded groove 68 on the mounting tube 61, so that the injector head 62 can be removed for repair or replaced with a new one. Compared with the traditional injector body, the new type is easy to disassemble and repair, and can save costs compared with directly replacing the entire injector body.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fuel injector body, comprising a first tube body (1), characterized in that: A fuel injection assembly (6) is fixedly connected to the top of one end of the first tube body (1); The oil injection assembly (6) comprises a mounting tube (61), a threaded groove (68) is provided in the top of the mounting tube (61), an oil injection head (62) is arranged above the mounting tube (61), a threaded column (65) is fixed at the bottom of the oil injection head (62), and oil injection holes (64) are provided on the threaded column (65) and the oil injection head (62).

2. The fuel injector body according to claim 1, characterized in that An annular sealing block (67) is fixed on the top of the installation tube (61), and an annular sealing groove (66) is provided at the bottom of the oil injection head (62) and on the periphery of the threaded column (65).

3. The fuel injector body according to claim 1, characterized in that Fixed blocks (63) are fixed on both sides of the oil injection head (62).

4. The fuel injector body according to claim 2, characterized in that The size of the annular sealing block (67) matches the size of the annular sealing groove (66).

5. The fuel injector body according to claim 1, characterized in that The threaded column (65) and the threaded groove (68) are threadedly connected.

6. The fuel injector body according to claim 1, characterized in that A second sealing sleeve (5) is sleeved between the first pipe body (1) and the oil injection assembly (6).

7. The fuel injector body according to claim 1, characterized in that Positioning pins (4) are fixed on both sides of the first tube body (1) close to the oil injection assembly (6).

8. The fuel injector body according to claim 1, characterized in that One end of the first tube body (1) away from the oil injection assembly (6) is threadedly connected to the second tube body (2), and a first sealing sleeve (3) is sleeved between the first tube body (1) and the second tube body (2).

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