Spark plug with sealing protective shell

Abstract

The utility model relates to the technical field of spark plug protective shells, in particular to a spark plug with a sealing protective shell, which comprises a limiting sleeve seat, a sealing sleeve seat is fixedly connected to the surface of the limiting sleeve seat, a top frame is fixedly connected to the top end of the sealing sleeve seat, and a protective cover is arranged on the surface of the top frame. Protection side frames are fixedly connected to the four corners of the bottom of the top frame, a spark plug body is arranged in a limiting sleeve seat in a sleeved mode, and a connecting nut is fixedly connected to the top end of the spark plug body. According to the utility model, the limiting sleeve seat, the sealing sleeve seat, the spark plug body, the connecting nut, the positioning seat, the threaded outer sleeve, the motor seat, the first positioning rubber ring, the second positioning rubber ring and the power connection head are arranged, so that equipment can be better sealed, protected and used; a worker firstly screws the sealing sleeve seat on the surface of the limiting sleeve seat on a motor vehicle engine, so that the limiting sleeve seat and the sealing sleeve seat are firstly positioned and installed.

Description

Technical Field

[0001] The utility model relates to the technical field of spark plug protective shells, and specifically relates to a spark plug with a sealed protective shell. Background Technique

[0002] A spark plug is an important component of a gasoline engine ignition system. It can introduce high-voltage electricity into the combustion chamber and make it jump across the electrode gap to generate a spark, thereby igniting the combustible mixture in the cylinder. It mainly consists of a terminal nut, an insulator, a terminal screw, a center electrode, a side electrode, and a housing, and the side electrode is welded to the housing.

[0003] For example, the patent document with the publication number CN 218151175 U discloses a spark plug sealing device for a gas engine, including a terminal electrode, a connecting nut, and a gas engine hood. One end of the terminal electrode is connected with a connecting nut, and the other end of the terminal electrode is connected with a spark plug housing. The surface of the spark plug housing is connected with a gas engine hood; a sealing gasket is connected between the spark plug housing and the gas engine hood, and a limiting block is connected at the notch of the sealing gasket; in the utility model, by docking the concave notch on the side wall of the sealing gasket with the limiting block inside the gas engine hood, the connection gap between the spark plug housing and the gas engine hood is filled, preventing external impurities from entering the working area of the spark plug. Then, through the mutual cooperation between the first sealing ring and the second sealing ring, it is avoided that excess oil enters the gap between the spark plug housing and the gas engine hood, increasing the service life of the spark plug.

[0004] However, when using this structure for the sealing protection of the spark plug, it often can only operate through the sealing protection structure between the spark plug and the installation structure. The overall sealing protection effect is poor, and it is impossible to perform separate disassembly, installation, and maintenance operations on the position of the overall seal. After long-term use, the overall sealing protection effect cannot be guaranteed. At the same time, the device cannot perform proper protection operations when the whole is not installed and used, unable to meet the daily use requirements. Therefore, it is urgent to design a spark plug with a sealed protective shell to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a spark plug with a sealed protective shell to solve the problems mentioned in the above background technique. When using the existing structure for the sealing protection of the spark plug, it often can only operate through the sealing protection structure between the spark plug and the installation structure. The overall sealing protection effect is poor, and it is impossible to perform separate disassembly, installation, and maintenance operations on the position of the overall seal. After long-term use, the overall sealing protection effect cannot be guaranteed. At the same time, the device cannot perform proper protection operations when the whole is not installed and used, unable to meet the daily use requirements.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A spark plug with a sealed protective housing, including a limit sleeve seat, a sealing sleeve seat is fixedly connected to the surface of the limit sleeve seat, a top frame is fixedly connected to the top of the sealing sleeve seat, a protective cover is arranged on the surface of the top frame, and protective side frames are fixedly connected to the four corners of the bottom of the top frame;

[0007] A spark plug body, the spark plug body is sleeved inside the limit sleeve seat, a connecting nut is fixedly connected to the top of the spark plug body, and a positioning seat is fixedly connected to the top of the connecting nut.

[0008] Preferably, a threaded outer sleeve is fixedly connected to the surface of the positioning seat, and a motor seat is fixedly connected to the top of the threaded outer sleeve.

[0009] Preferably, a first positioning rubber ring is arranged on the side of the motor seat, and a second positioning rubber ring is arranged on the side of the positioning seat.

[0010] Preferably, a power connection head is arranged at the bottom end of the protective side frame.

[0011] Preferably, a damping rubber strip is arranged on the inner wall of the protective side frame, and the damping rubber strip is adapted to the threaded outer sleeve.

[0012] Preferably, a sealing rubber ring is arranged on the surface edge of the sealing sleeve seat, and a threaded inner sleeve is arranged on the inner wall of the sealing sleeve seat.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] For this spark plug with a sealed protective housing, through the provided limit sleeve seat, sealing sleeve seat, spark plug body, connecting nut, positioning seat, threaded outer sleeve, motor seat, first positioning rubber ring, second positioning rubber ring and power connection head, the equipment can be better sealed and protected for use. During the actual use process, the staff first screw the sealing sleeve seat on the surface of the limit sleeve seat onto the motor vehicle engine as a whole, so that the limit sleeve seat and the sealing sleeve seat first perform positioning and installation operations. Then, the spark plug body and the connecting nut are screwed into the inside of the sealing sleeve seat through the threaded outer sleeve on the surface of the positioning seat. The connecting nut can perform positioning and fixing operations with the inside of the limit sleeve seat when the two are screwed and fixed. At this time, through the first positioning rubber ring on the side of the motor seat and the second positioning rubber ring on the side of the positioning seat, they can respectively perform sealing and positioning abutting operations with the threaded inner sleeve of the sealing sleeve seat and the inner wall of the limit sleeve seat. Subsequently, when the spark plug body has been used for a period of time, the spark plug body or the limit sleeve seat and the sealing sleeve seat can be selectively disassembled and replaced to always ensure the sealing and protection effect of the spark plug body, reflecting the practicality of the equipment design.

[0015] The spark plug with a sealed protective shell further improves the overall use effect of the device through the provided limit sleeve seat, seal sleeve seat, top frame, protective cover, protective side frame, damping rubber strip, sealing rubber ring and internal thread sleeve. During daily use, the staff can screw and install the top frame and the protective cover at the protective side frames at the four corners of the bottom to the side of the seal sleeve seat. At this time, the damping rubber strip on the inner wall of the protective side frame can perform the limit operation for screwing, so that the four groups of protective side frames can perform protective operations on the side of the seal sleeve seat. At the same time, the inner wall of the top frame can fit to the top of the seal sleeve seat and perform a sealing fit operation with the sealing rubber ring at the top edge of the seal sleeve seat, so as to realize the targeted sealing protection of the limit sleeve seat and the motor seat at the top end of the external thread sleeve, reflecting the comprehensiveness of the device design. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional schematic diagram of the structure of the present invention;

[0017] Figure 2 is an overall schematic diagram of the connection nut structure of the present invention;

[0018] Figure 3 is an overall schematic diagram of the limit sleeve seat structure of the present invention;

[0019] Figure 4 is of the present invention Figure 1 is an enlarged schematic diagram of the structure at A in.

[0020] In the figure: 1. Limit sleeve seat; 2. Seal sleeve seat; 3. Top frame; 4. Protective cover; 5. Protective side frame; 6. Spark plug body; 7. Connection nut; 8. Positioning seat; 9. External thread sleeve; 10. Motor seat; 11. First positioning rubber ring; 12. Second positioning rubber ring; 13. Power connection head; 14. Damping rubber strip; 15. Sealing rubber ring; 16. Internal thread sleeve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1-4 , an embodiment provided by the present invention:

[0023] A spark plug with a sealed protective shell, comprising a limit sleeve base 1, a sealing sleeve base 2 fixedly connected to the surface of the limit sleeve base 1, a top frame 3 fixedly connected to the top end of the sealing sleeve base 2, a protective cover 4 arranged on the surface of the top frame 3, protective side frames 5 fixedly connected to the four corners at the bottom of the top frame 3, a power connection head 13 arranged at the bottom end of the protective side frames 5, a damping rubber strip 14 arranged on the inner wall of the protective side frames 5, the damping rubber strip 14 being adapted to the threaded outer sleeve 9, a sealing rubber ring 15 arranged on the surface edge of the sealing sleeve base 2, and a threaded inner sleeve 16 arranged on the inner wall of the sealing sleeve base 2. The top frame 3 and the protective cover 4 are screwed and installed on the side of the sealing sleeve base 2 through the protective side frames 5 at the four corners at the bottom. At this time, the damping rubber strip 14 on the inner wall of the protective side frames 5 can perform a limiting operation for screwing, so that the four groups of protective side frames 5 can perform a protective operation on the side of the sealing sleeve base 2.

[0024] A spark plug body 6 is sleeved inside the limit sleeve base 1. A connecting nut 7 is fixedly connected to the top end of the spark plug body 6. A positioning seat 8 is fixedly connected to the top end of the connecting nut 7. A threaded outer sleeve 9 is fixedly connected to the surface of the positioning seat 8. A motor seat 10 is fixedly connected to the top end of the threaded outer sleeve 9. A first positioning rubber ring 11 is arranged on the side of the motor seat 10. A second positioning rubber ring 12 is arranged on the side of the positioning seat 8. The spark plug body 6 and the connecting nut 7 are screwed into the inside of the sealing sleeve base 2 through the threaded outer sleeve 9 on the surface of the positioning seat 8. When the connecting nut 7 and the threaded outer sleeve 9 are screwed and fixed, the connecting nut 7 can perform a positioning and fixing operation with the inside of the limit sleeve base 1. At this time, through the first positioning rubber ring 11 on the side of the motor seat 10 and the second positioning rubber ring 12 on the side of the positioning seat 8, they can respectively perform a sealing and positioning abutting operation with the threaded inner sleeve 16 of the sealing sleeve base 2 and the inner wall of the limit sleeve base 1.

[0025] Working principle: When in use, the user first screws the sealing sleeve base 2 on the surface of the limit sleeve base 1 onto the motor of the motor vehicle as a whole, so that the limit sleeve base 1 and the sealing sleeve base 2 first perform the positioning and installation operation. Then, the spark plug body 6 and the connecting nut 7 are screwed into the inside of the sealing sleeve base 2 through the threaded outer sleeve 9 on the surface of the positioning seat 8. When the connecting nut 7 is screwed and fixed, it can perform the positioning and fixing operation with the inside of the limit sleeve base 1. At this time, through the first positioning rubber ring 11 on the side of the motor base 10 and the second positioning rubber ring 12 on the side of the positioning seat 8, they can respectively perform the sealing and positioning abutting operation with the threaded inner sleeve 16 of the sealing sleeve base 2 and the inner wall of the limit sleeve base 1. Subsequently, when the spark plug body 6 has been used for a period of time, the spark plug body 6 or the limit sleeve base 1 and the sealing sleeve base 2 can be selectively disassembled and replaced to always ensure the sealing protection effect on the spark plug body 6. During the daily use process, the staff can screw and install the top frame 3 and the protective cover 4 through the protective side frames 5 at the four corners of the bottom with the side of the sealing sleeve base 2. At this time, the damping rubber strip 14 on the inner wall of the protective side frame 5 can perform the limiting operation for screwing, so that the four groups of protective side frames 5 perform the protection operation on the side of the sealing sleeve base 2. At the same time, the inner wall of the top frame 3 can fit to the top of the sealing sleeve base 2 and perform the sealing fit operation with the sealing rubber ring 15 at the top edge of the sealing sleeve base 2, so as to realize the targeted sealing protection of the limit sleeve base 1 and the motor base 10 at the top of the threaded outer sleeve 9. The above is the whole working principle of the present utility model.

[0026] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A spark plug with a sealed protective shell, comprising a limiting sleeve (1), characterized in that: The surface of the limiting sleeve (1) is fixedly connected to a sealing sleeve (2), the top of the sealing sleeve (2) is fixedly connected to a top frame (3), the surface of the top frame (3) is provided with a protective cover (4), and the bottom four corners of the top frame (3) are fixedly connected to protective side frames (5); A spark plug body (6), wherein the interior of the limiting sleeve (1) is sleeved with the spark plug body (6), the top end of the spark plug body (6) is fixedly connected to a connecting nut (7), and the top end of the connecting nut (7) is fixedly connected to a positioning seat (8).

2. A spark plug with a sealed protective shell according to claim 1, characterized in that: A threaded outer sleeve (9) is fixedly connected to the surface of the positioning seat (8), and a motor seat (10) is fixedly connected to the top of the threaded outer sleeve (9).

3. A spark plug with a sealed protective shell according to claim 2, characterized in that: A first positioning rubber ring (11) is provided on the side of the motor seat (10), and a second positioning rubber ring (12) is provided on the side of the positioning seat (8).

4. The spark plug with a sealed protective shell according to claim 1, characterized in that: The bottom end of the protective side frame (5) is provided with an electrical connector (13).

5. The spark plug with a sealed protective shell according to claim 1, characterized in that: The inner wall of the protective side frame (5) is provided with a damping rubber strip (14), and the damping rubber strip (14) is compatible with the threaded outer sleeve (9).

6. The spark plug with a sealed protective shell according to claim 1, characterized in that: A sealing rubber ring (15) is provided on the surface edge of the sealing sleeve seat (2), and a threaded inner sleeve (16) is provided on the inner wall of the sealing sleeve seat (2).

Images