Plug fuel oil control valve capable of being quickly exchanged

Abstract

The utility model discloses a fast interchangeable plug fuel oil control valve which comprises a fuel oil control valve body, a connecting assembly is arranged between the fuel oil control valve body and a first inserting piece or a second inserting piece, and connecting external threads are arranged on the annular side face of the first inserting piece and the annular side face of the second inserting piece respectively. A connecting internal thread is arranged on the inner annular side face of the locking sleeve, so that mounting personnel can conveniently connect and fix the first inserting piece or the second inserting piece to the left end of the fuel oil control valve body or detach the first inserting piece or the second inserting piece to be replaced and used according to environmental requirements and by means of the locking sleeve, and the first inserting piece and the second inserting piece have good interchangeability; by tightening the locking screw in the internal thread through hole, the locking sleeve which is locked and fixed in place can be locked by the locking screw, and the situation that the locking sleeve is loosened and rotates in the using process under the continuous vibration environment of an external engine is avoided, so that the locking stability of the locking sleeve is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of fuel control valve technology, specifically a quick-interchangeable plug fuel control valve. Background Technology

[0002] The fuel control valve is an important component of the valve timing system in an engine; it is a control valve with high precision.

[0003] In the prior art, a quick-interchangeable plug fuel control valve with the publication number "CN220505917U" is provided. It is designed with a plug, insert, limit hole, shell and protrusions. The difference lies in the shape of the insert, while the interface is the same. The plug is injection molded separately. During assembly, the four protrusions of the plug are assembled with the shell. Users can replace the plug at will according to environmental needs, which has good interchangeability.

[0004] However, the above technical solutions and existing technologies have the following drawbacks:

[0005] Although the fuel control valve has the ability to freely replace the first and second plugs, the first and second plugs are only assembled with the main body of the device by four first and second protrusions. This connection structure is very prone to loosening in the context of continuous engine vibration during actual use, so the connection stability needs to be further improved. Utility Model Content

[0006] The purpose of this invention is to provide a quick-interchangeable plug fuel control valve to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A quick-interchangeable plug-in fuel control valve includes a mounting bracket, a fuel control valve body, a first plug-in, and a second plug-in. The mounting bracket is fixedly connected to the right side of the annular side of the fuel control valve body, and the first plug-in or the second plug-in is connected to the left end of the fuel control valve body. A connecting component is provided between the fuel control valve body and the first plug-in or the second plug-in, and the connecting component is used to quickly interchange the first plug-in or the second plug-in.

[0009] Preferably, the connecting assembly includes a connecting external thread, a cartridge cavity, a blocking ring, and a locking sleeve. The first insert and the second insert are both provided with connecting external threads on the right side of their annular sides. The right end faces of the first insert and the second insert are both provided with cartridge cavities, and the cartridge cavities match the left end of the fuel control valve body. The left side of the annular side of the fuel control valve body is provided with a blocking ring, and the locking sleeve is movably installed on the annular side of the fuel control valve body.

[0010] Preferably, the locking sleeve has an internal threaded through hole on the front side of the annular side, and a locking screw is installed inside the internal threaded through hole. The locking sleeve has a connecting internal thread on the inner annular side, and the connecting internal thread matches the connecting external thread.

[0011] Preferably, a guide block is provided on the upper side of the annular side of the fuel control valve body, a first guide groove is provided on the upper side of the annular side of the first insert, and the first guide groove matches the guide block, and a second guide groove is provided on the upper side of the annular side of the second insert, and the second guide groove matches the guide block.

[0012] Preferably, both the first and second plug-ins are fitted with internal sealing rings, and the internal sealing rings are made of fluororubber.

[0013] Preferably, an external sealing ring is fitted on the left side of the annular side of the fuel control valve body, and the external sealing ring is made of fluororubber. A groove is provided on the upper side of the inner annular side of the external sealing ring.

[0014] Preferably, an electrical connection socket is provided on the left side inside the fuel control valve body, a first electrical connection plug is provided inside the first plug-in and the first electrical connection plug is matched with the electrical connection socket, and a second electrical connection plug is provided inside the second plug-in and the second electrical connection plug is matched with the electrical connection socket.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. By providing external connecting threads on the annular sides of the first and second inserts, and internal connecting threads on the inner annular side of the locking sleeve, it is convenient for installers to connect and fix the first or second insert to the left end of the fuel control valve body or to disassemble and replace it according to environmental needs and with the help of the locking sleeve. This makes the first and second inserts highly interchangeable, and this connection structure is also more stable than the previous snap-fit ​​connection structure.

[0017] 2. By tightening the locking screw in the internal threaded through hole, the locking screw can lock the locking sleeve after it is locked in place, preventing the locking sleeve from loosening and rotating during use under the continuous vibration of the external engine, thus ensuring the locking stability of the locking sleeve.

[0018] 3. By opening the first guide groove and the second guide groove, the guide block can guide and limit the first or second plug-in, preventing the first or second plug-in installed on the left end of the fuel control valve body from rotating axially during use. Attached Figure Description

[0019] Figure 1This is a structural diagram of the fuel control valve body and the first plug-in during the connection and use process in this utility model;

[0020] Figure 2 This is a schematic diagram of the explosion state of the fuel control valve body after it is separated from the first insert in this utility model;

[0021] Figure 3 This is a top cross-sectional view of the fuel control valve body and the first plug-in during the connection and use process in this utility model;

[0022] Figure 4 This is a structural diagram of the fuel control valve body and the second plug-in during the connection and use process in this utility model;

[0023] Figure 5 This is a schematic diagram of the explosion state of the fuel control valve body after it is separated from the second insert in this utility model;

[0024] Figure 6 This is a top cross-sectional view of the fuel control valve body and the second plug-in during use in this utility model.

[0025] In the diagram: 1. Mounting bracket; 2. Fuel control valve body; 21. Electrical connection socket; 3. First insert; 31. First electrical connection plug; 4. Second insert; 41. Second electrical connection plug; 51. External connection thread; 52. Internal sealing ring; 53. Insertion cavity; 54. External sealing ring; 541. Groove; 55. Retaining ring; 56. Locking screw; 57. Internal threaded through hole; 58. Locking sleeve; 59. Guide block; 511. First guide groove; 512. Second guide groove. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-6 This utility model provides a technical solution:

[0028] Example 1:

[0029] A quick-interchangeable plug fuel control valve includes a mounting bracket 1, a fuel control valve body 2, a first plug 3, and a second plug 4. The mounting bracket 1 is fixedly connected to the right side of the annular side of the fuel control valve body 2. The mounting bracket 1 and the fuel control valve body 2 are an integral structure. The mounting bracket 1 facilitates the installation of the fuel control valve body 2 by the installer. The left end of the fuel control valve body 2 is connected to either the first plug 3 or the second plug 4. A connecting component is provided between the fuel control valve body 2 and the first plug 3 or the second plug 4. The connecting component is used to quickly interchange the first plug 3 or the second plug 4. The difference between the first plug 3 and the second plug 4 is the position and orientation of the connecting plug at the tail end. The rest of the structure is the same, so that the installer can easily replace the first plug 3 or the second plug 4 according to the environmental needs and with the help of the connecting component, so that the first plug 3 and the second plug 4 have good interchangeability.

[0030] An electrical connection socket 21 is provided on the left side inside the fuel control valve body 2. A first electrical connection plug 31 is provided inside the first plug 3, and the first electrical connection plug 31 is matched with the electrical connection socket 21. A second electrical connection plug 41 is provided inside the second plug 4, and the second electrical connection plug 41 is matched with the electrical connection socket 21. The electrical connection socket 21 not only facilitates the first plug 3 to be electrically connected to the fuel control valve body 2 via the first electrical connection plug 31, but also facilitates the second plug 4 to be electrically connected to the fuel control valve body 2 via the second electrical connection plug 41.

[0031] Example 2:

[0032] Based on Embodiment 1, this embodiment provides external connecting threads 51 on the annular side of the first plug-in 3 and the second plug-in 4, and internal connecting threads on the inner annular side of the locking sleeve 58. This allows installers to connect and fix the first plug-in 3 or the second plug-in 4 to the left end of the fuel control valve body 2 according to environmental needs and with the help of the locking sleeve 58, or to disassemble and replace them for use, thus making the first plug-in 3 and the second plug-in 4 highly interchangeable.

[0033] The connecting assembly includes an external thread 51, an insertion cavity 53, a retaining ring 55, and a locking sleeve 58. The first insert 3 and the second insert 4 are both provided with external threads 51 on the right side of their annular sides. The locking sleeve 58 is provided with internal threads on its inner annular side, and the internal threads match the external threads 51. The matching internal threads and external threads 51 facilitate quick disassembly and interchange between the locking sleeve and the first insert 3 or the second insert 4 by rotating the threads. The right end face of the first insert 3 and the second insert 4 is provided with an insertion cavity 53, and the insertion cavity 53 matches the left end of the fuel control valve body 2. The insertion cavity 53 facilitates the insertion of the left end of the fuel control valve body 2 into the first insert 3 or the second insert 4.

[0034] A blocking ring 55 is provided on the left side of the annular side of the fuel control valve body 2. The blocking ring 55 is an integral structure with the fuel control valve body 2. The blocking ring 55, which is an integral structure with the fuel control valve body 2, can block and limit the locking sleeve 58, preventing the locking sleeve 58 from slipping and separating from the fuel control valve body 2 during use. The locking sleeve 58 is movably installed on the annular side of the fuel control valve body 2. The locking sleeve 58 can be used to fix the first plug-in 3 or the second plug-in 4 to the left end of the fuel control valve by means of the connecting external thread 51 and the connecting internal thread, respectively. The annular side of the locking sleeve 58 is provided with anti-slip texture, which makes the anti-slip property of the annular side of the locking sleeve 58 better, preventing the locking sleeve 58 from easily slipping during rotation and disassembly.

[0035] The locking sleeve 58 has an internally threaded through hole 57 on its annular side front. A locking screw 56 is installed inside the internally threaded through hole 57. The internally threaded through hole 57 and the locking screw 56 can lock the locking sleeve 58, preventing it from loosening and rotating during use under the continuous vibration of the external engine. The locking screw 56 is a wing screw, which makes it easy for installers to tighten or loosen it by hand. A guide block 59 is provided on the upper side of the annular side of the fuel control valve body 2. The guide block 59 and the fuel control valve are integrated into one structure. A first guide groove 511 is provided on the upper side of the annular side of the first insert 3. The first guide groove 511 and the guide block 59 are matched with each other. The first guide groove 511 and the guide block 59 can limit and guide the first plug-in 3 inserted at the left end of the fuel control valve body 2, so as to prevent the first plug-in 3 inserted at the left end of the fuel control valve body 2 from rotating axially during use. The second plug-in 4 has a second guide groove 512 on the upper side of the inner annular side, and the second guide groove 512 is matched with the guide block 59. The second guide groove 512 and the guide block 59 can limit and guide the second plug-in 4 inserted at the left end of the fuel control valve body 2, so as to prevent the second plug-in 4 inserted at the left end of the fuel control valve body 2 from rotating axially during use.

[0036] Both the first insert 3 and the second insert 4 have an internal sealing ring 52 embedded inside. The internal sealing ring 52 is made of fluororubber. The fluororubber internal sealing ring 52 improves the sealing performance at the connection between the first insert 3 or the second insert 4 and the fuel control valve body 2. An external sealing ring 54 is fitted on the left side of the annular side of the fuel control valve body 2. The external sealing ring 54 is also made of fluororubber. The fluororubber external sealing ring 54 improves the sealing performance at the connection between the first insert 3 or the second insert 4 and the blocking ring 55. A notch 541 is provided on the upper side of the inner annular side of the external sealing ring 54. The notch 541 matches the guide block 59. The notch 541 prevents the guide block 59 from obstructing the use of the external sealing ring 54 on the left side of the annular side of the fuel control valve body 2.

[0037] Working principle: By providing external connecting threads 51 on the annular sides of the first insert 3 and the second insert 4, and internal connecting threads on the inner annular side of the locking sleeve 58, it is convenient for installers to connect and fix the first insert 3 or the second insert 4 to the left end of the fuel control valve body 2 according to environmental needs, or to disassemble and replace them for use. This ensures good interchangeability between the first insert 3 and the second insert 4. During this process, the insertion cavity 53 facilitates the insertion of the left end of the fuel control valve body 2 into the first insert 3 or the second insert 4. The first guide groove 511 allows the guide block 59 to guide and limit the first insert 3, preventing axial rotation during use. Similarly, the second guide groove 512 allows the guide block 59 to guide and limit the second insert 4, preventing axial rotation during use. When the locking sleeve 58 is engaged with the first insert 3 or the second insert 4... 4. After locking and fixing in place, the installer only needs to tighten the locking screw 56 in the internal threaded through hole 57 to lock the locking sleeve 58 after locking and fixing in place. This prevents the locking sleeve 58 from loosening and rotating during use under the continuous vibration of the external engine, thus ensuring the locking stability of the locking sleeve 58. When the locking screw 56 is loosened, the installer can reverse and loosen the locking sleeve 58. By embedding internal sealing rings 52 inside the first plug-in 3 and the second plug-in 4, the sealing performance at the connection between the first plug-in 3 or the second plug-in 4 and the fuel control valve body 2 is better. By fitting an external sealing ring 54 on the left side of the annular side of the fuel control valve body 2, the sealing performance at the connection between the first plug-in 3 or the second plug-in 4 and the blocking ring 55 is better. This ensures the sealing performance between the first plug-in 3 or the second plug-in 4 and the fuel control valve body 2, preventing external dust or rainwater from easily seeping into the connection between the first electrical connector 31 or the second electrical connector 41 and the electrical connector socket 21.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-interchangeable plug-in fuel control valve, comprising a mounting bracket (1), a fuel control valve body (2), a first insert (3), and a second insert (4), characterized in that: The fuel control valve body (2) has a mounting bracket (1) fixedly connected to the right side of its annular side. The left end of the fuel control valve body (2) is connected to a first plug-in (3) or a second plug-in (4). A connecting component is provided between the fuel control valve body (2) and the first plug-in (3) or the second plug-in (4), and the connecting component is used to quickly interchange the first plug-in (3) or the second plug-in (4).

2. The quick-interchangeable plug fuel control valve according to claim 1, characterized in that: The connecting assembly includes a connecting external thread (51), an insert cavity (53), a blocking ring (55), and a locking sleeve (58). The first insert (3) and the second insert (4) are both provided with connecting external threads (51) on the right side of their annular sides. The first insert (3) and the second insert (4) are both provided with insert cavities (53) on their right end faces. The insert cavity (53) matches the left end of the fuel control valve body (2). The fuel control valve body (2) is provided with a blocking ring (55) on the left side of its annular side. The locking sleeve (58) is movably installed on the annular side of the fuel control valve body (2).

3. The quick-interchangeable plug fuel control valve according to claim 2, characterized in that: The locking sleeve (58) has an internal threaded through hole (57) on the front side of the annular side. A locking screw (56) is installed inside the internal threaded through hole (57). The locking sleeve (58) has a connecting internal thread on the inner annular side, and the connecting internal thread matches the connecting external thread (51).

4. The quick-interchangeable plug fuel control valve according to claim 1, characterized in that: The fuel control valve body (2) has a guide block (59) on the upper side of its annular side. The first insert (3) has a first guide groove (511) on the upper side of its annular side, and the first guide groove (511) matches the guide block (59). The second insert (4) has a second guide groove (512) on the upper side of its annular side, and the second guide groove (512) matches the guide block (59).

5. A quick-interchangeable plug fuel control valve according to claim 1, characterized in that: Both the first plug-in (3) and the second plug-in (4) are fitted with an internal sealing ring (52), and the internal sealing ring (52) is made of fluororubber.

6. The quick-interchangeable plug fuel control valve according to claim 1, characterized in that: The fuel control valve body (2) has an external sealing ring (54) fitted on the left side of the annular side, and the external sealing ring (54) is made of fluororubber. A groove (541) is provided on the upper side of the inner annular side of the external sealing ring (54).

7. A quick-interchangeable plug-in fuel control valve according to claim 1, characterized in that: The fuel control valve body (2) has an electrical connection socket (21) on the left side inside. The first plug (3) has a first electrical connection plug (31) inside, and the first electrical connection plug (31) matches the electrical connection socket (21). The second plug (4) has a second electrical connection plug (41) inside, and the second electrical connection plug (41) matches the electrical connection socket (21).

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