CN217283434U

CN217283434U - Glow plug for automobile engine

Info

Publication number: CN217283434U
Application number: CN202220112449.7U
Authority: CN
Inventors: 虞冠松
Original assignee: Wenzhou Shuangsong Auto Parts Co ltd
Current assignee: Wenzhou Shuangsong Auto Parts Co ltd
Priority date: 2022-01-17
Filing date: 2022-01-17
Publication date: 2022-08-23
Anticipated expiration: 2032-01-17

Abstract

The utility model discloses an automobile engine glow plug in auto-parts field, including electro-heat equipment, electro-heat equipment front end central point puts fixedly connected with from inside to outside in proper order has heat conduction pole, connection shell, cooperation installation cover, and the heat conduction pole outside is provided with spiral heating pipe, and spiral heating pipe rear end electric power input end is connected with electro-heat equipment front side electric power output end, and spiral heating pipe is located the connection shell. The utility model discloses an adopt good heating structural design, be provided with the casing protection in the heater outside promptly, the heater adopts the heliciform setting, and is provided with the heat conduction pole in the heater is inside, the heat conduction pole not with heater direct contact, actually carry out the electrothermal heating during operation, the heater heats the heat conduction pole, generates heat via heat conduction pole and replaces traditional heater work, and the damage to the heater is less during the in-service use.

Description

Glow plug for automobile engine

Technical Field

The utility model relates to an auto-parts field especially relates to automobile engine glow plug.

Background

The Glow Plug is an important accessory in an automobile ignition system, is commonly called a Glow Plug and is a supplementary heater, is a supplementary device used in the starting process of a diesel engine, and when the diesel engine is started, the circulation of the engine is difficult to start due to the external low temperature in the process of air inlet, compression, explosion and exhaust circulation, and at the moment, supplementary heating is needed. The device is arranged in a preheating chamber at the upper part of an engine cylinder and below an oil nozzle. When the diesel oil is sprayed and atomized, the diesel oil is heated by passing through the glow plug. When the oil gas is compressed, the oil gas is easy to explode, and the circulation of the engine is started, so that the normal circulation work of the engine is achieved.

At present, when current automobile engine glow plug lies in the cooperation installation use, it lacks good heating structural design, actually carries out electrothermal heating during operation, and it adopts direct heating mode, though heating efficiency is high, but great to the damage of heater, and its whole good built-up fitting structural design that lacks simultaneously, when actually carrying out whole automobile engine glow plug installation, its installation convenience is relatively poor with the leakproofness.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the existing automobile engine glow plug lacks good heating structure design and good combined installation structure design.

In order to solve the technical problem, the utility model discloses a technical scheme be: providing an automobile engine glow plug, which comprises an electric heating device, wherein a heat conducting rod, a connecting shell and a matching installation sleeve are fixedly connected to the central position of the front end of the electric heating device from inside to outside in sequence;

the spiral heating pipe is arranged outside the heat conducting rod, the electric power input end at the rear end of the spiral heating pipe is connected with the electric power output end at the front side of the electric heating device, the spiral heating pipe is positioned in the connecting shell, the spiral heating pipe can be electrified in the connecting shell to work and generate heat, the heating effect on the heat conducting rod in the spiral heating pipe is achieved, the heat conducting rod is not in direct contact with the heater, the heater heats the heat conducting rod when the electric heating operation is actually carried out, the heat conducting rod conducts heat and generates heat to replace the traditional heater to work, and the damage to the heater is small when the electric heating device is actually used;

the connecting shell front side inner side wall is in threaded connection with a threaded connecting ring, a front side wall fixedly connected with sealing cover is arranged between the center positions of the front side wall and the rear side wall of the sealing cover, a through hole is formed in the center position of the front side wall and the rear side wall of the sealing cover, the sealing cover front side wall is fixedly provided with a first sealing ring at the position of the opening of the through hole, the sealing cover can be screwed to drive the threaded connecting ring to move, the threaded connecting ring is separated from the connecting shell, and the sealing cover is detached.

Preferably, first sealing washer and through-hole inside wall sliding connection have the conducting rod lateral wall, play the sealed effect of connecting shell front side open-ended, the electric heater unit rear end is provided with the power supply seat, power supply seat rear side wall central point puts and is provided with power supply interface, the inside central point of power supply interface puts and is provided with the connection contact, and accessible power supply interface connection power supply connects, plays the power supply effect for whole glow plug.

Preferably, the lateral wall is provided with connecting thread before the connecting shell, lateral wall sliding connection has sealed lid back side wall before the connecting shell, cooperation installation cover inside wall fixedly connected with connecting shell lateral wall, lateral wall just is located connecting shell outside fixedly connected with second sealing washer before the cooperation installation cover, and its whole adoption integration structural design just is provided with threaded connection shell and second sealing washer, and accessible threaded connection shell carries out the threaded connection installation work of glow plug, and the second sealing washer in its outside has played supplementary sealed effect, and holistic installation convenience is better with the leakproofness.

The beneficial effects of the utility model are as follows:

1. the utility model adopts a good heating structure design, namely, the shell protection is arranged outside the heater, the heater adopts a spiral arrangement, and the heat conducting rod is arranged inside the heater, the heat conducting rod is not in direct contact with the heater, when the electric heating work is actually carried out, the heater heats the heat conducting rod, the heat conducting rod conducts heat and generates heat to replace the traditional heater work, and the damage to the heater is less when the electric heating heater is actually used;

2. the utility model discloses a wholly adopt good composite mounting structural design, when actually carrying out whole automobile engine glow plug installation, its whole adoption integrated structure design, and be provided with threaded connection shell and sealing washer, holistic installation convenience is better with the leakproofness.

Drawings

FIG. 1 is an overall perspective view of the present invention;

fig. 2 is a perspective view of the present invention with the sealing cover and the first sealing ring removed;

fig. 3 is a side view of the present invention.

In the figure: 1. an electric heating device; 2. a matching installation sleeve; 3. a connecting shell; 4. a heat conducting rod; 5. a spiral heating pipe; 6. a threaded connection ring; 7. a sealing cover; 8. a first seal ring; 9. a second seal ring; 10. a power supply base; 11. a power supply interface.

Detailed Description

The following description of the preferred embodiments of the present invention will be provided with reference to the accompanying drawings, so that the advantages and features of the present invention can be easily understood by those skilled in the art, and the scope of the present invention can be clearly and clearly defined.

Referring to fig. 1 and 2, an automotive engine glow plug comprises an electric heating device 1, a heat conducting rod 4, a connecting shell 3 and a matching mounting sleeve 2 are fixedly connected to the center position of the front end of the electric heating device 1 from inside to outside in sequence, a spiral heating pipe 5 is arranged on the outer side of the heat conducting rod 4, the electric power input end of the rear end of the spiral heating pipe 5 is connected with the electric power output end of the front side of the electric heating device 1, the spiral heating pipe 5 is positioned in the connecting shell 3, the spiral heating pipe 5 can be electrified in the connecting shell 3 to work and generate heat to heat the heat conducting rod 4 in the connecting shell, the heat conducting rod 4 is not in direct contact with a heater, when the electric heating work is actually carried out, the heater heats the heat conducting rod 4, the heat conducting rod 4 conducts heat to replace the traditional heater to work, the damage to the heater is small when the electric heating plug is actually used, the inner side wall of the front side of the connecting shell 3 is in threaded connection with a threaded connecting ring 6, the front side wall of the threaded connecting ring 6 is fixedly connected with a sealing cover 7, the through hole has been seted up between the both sides wall central point puts around sealed lid 7, and sealed 7 preceding lateral walls of lid are located through hole opening part fixed mounting has first sealing washer 8, can twist sealed lid 7 and drive the motion of threaded connection circle 6, realize breaking away from of threaded connection circle 6 and connecting shell 3, and then realize the dismantlement of sealed lid 7.

As shown in fig. 1 and 3, the first sealing ring 8 is connected with the outer side wall of the heat conducting rod 4 with the inner side wall of the through hole in a sliding manner, so that the sealing effect of the front opening of the connecting shell 3 is achieved, the power supply seat 10 is arranged at the rear end of the electric heating device 1, the power supply interface 11 is arranged at the central position of the rear side wall of the power supply seat 10, the connecting contact is arranged at the central position inside the power supply interface 11, the power supply connector can be connected through the power supply interface 11, and the power supply effect of the whole glow plug is achieved.

As shown in fig. 1, the outer side wall of the front side of the connecting shell 3 is provided with connecting threads, the front side wall of the connecting shell 3 is slidably connected with the rear side wall of the sealing cover 7, the inner side wall of the matching mounting sleeve 2 is fixedly connected with the outer side wall of the connecting shell 3, the front side wall of the matching mounting sleeve 2 is fixedly connected with a second sealing ring 9 outside the connecting shell 3, the whole structure is integrally designed, the threaded connecting shell 3 and the second sealing ring 9 are arranged, the threaded connecting mounting work of the glow plug can be carried out through the threaded connecting shell 3, the second sealing ring 9 outside the sealing shell plays a role in auxiliary sealing, and the whole mounting convenience and sealing performance are better.

When the utility model is used, the whole body of the utility model adopts an integrated structure design and is provided with a thread connecting shell 3 and a second sealing ring 9, the thread connecting installation work of the glow plug can be carried out through the thread connecting shell 3, the second sealing ring 9 at the outer side of the utility model plays a role in auxiliary sealing, the whole installation convenience and the sealing performance are better, a power supply connector can be connected through a power supply interface 11 to play a role in supplying power to the whole glow plug, the power input end at the rear end of a spiral heating pipe 5 is connected with the power output end at the front side of an electric heating device 1, the spiral heating pipe 5 is positioned in the connecting shell 3, the spiral heating pipe 5 can be electrified in the connecting shell 3 to work and generate heat to heat a heat conducting rod 4 in the connecting shell, the heat conducting rod 4 is not in direct contact with a heater, when the electric heating work is actually carried out, the heater heats the heat conducting rod 4 to heat and replace the traditional heater work, the damage to the heater is small when the heater is actually used.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. Automobile engine glow plug, including electro-heat equipment (1), its characterized in that: the center position of the front end of the electric heating device (1) is fixedly connected with a heat conducting rod (4), a connecting shell (3) and a matching installation sleeve (2) from inside to outside in sequence;

a spiral heating pipe (5) is arranged on the outer side of the heat conducting rod (4), and the rear end electric power input end of the spiral heating pipe (5) is connected with the front side electric power output end of the electric heating device (1);

the connecting shell (3) front side inner side wall is in threaded connection with a threaded connection ring (6), the threaded connection ring (6) front side wall is fixedly connected with a sealing cover (7), a through hole is formed between the center positions of the front side wall and the rear side wall of the sealing cover (7), and the sealing cover (7) front side wall is located at the opening of the through hole and is fixedly provided with a first sealing ring (8).

2. The automotive engine glow plug of claim 1, wherein: the first sealing ring (8) is connected with the inner side wall of the through hole in a sliding manner to form the outer side wall of the heat conducting rod (4).

3. The automotive engine glow plug of claim 1, wherein: the rear end of the electric heating device (1) is provided with a power supply seat (10).

4. The automotive engine glow plug according to claim 3, wherein: the power supply seat (10) is provided with a power supply interface (11) at the central position of the rear side wall, and a connecting contact is arranged at the central position inside the power supply interface (11).

5. The automotive engine glow plug of claim 1, wherein: the cooperation is installed cover (2) inside wall fixedly connected with and is connected shell (3) lateral wall, the cooperation is installed before cover (2) lateral wall and is located and is connected shell (3) outside fixedly connected with second sealing washer (9).

6. The automotive engine glow plug according to claim 1, wherein: the connecting shell is characterized in that a connecting thread is arranged on the outer side wall of the front side of the connecting shell (3), and a sealing cover (7) rear side wall is connected to the front side wall of the connecting shell (3) in a sliding mode.

7. The automotive engine glow plug according to claim 1, wherein: the spiral heating pipe (5) is positioned in the connecting shell (3).