Glow plug with high durability

Abstract

The utility model provides a glow plug with strong durability, which relates to the technical field of glow plugs, and comprises a main body mechanism, the main body mechanism comprises a glow plug body, a heating tube is sleeved in the glow plug body, the heating tube is in sliding connection with the glow plug body, the outer surface of the heating tube is fixedly connected with a fixed block, and the fixed block is fixedly connected with the glow plug body. A limiting block is arranged on one side face of the fixing block. According to the electric heating plug, the main body mechanism is arranged, and the electric heating plug body and the heating tube can be separated, so that when the heating tube is damaged, the heating tube can be replaced, parts which do not need to be replaced can be continuously used, the durability of the electric heating plug is higher, and meanwhile, a part of use cost of the electric heating plug is also saved; and the guide groove is arranged, so that the heating tube can be positioned and mounted, and the fixed block can be positioned at a proper position.

Description

Technical Field

[0001] The utility model relates to the technical field of glow plugs, in particular to a glow plug with strong durability. Background Technique

[0002] A glow plug is a common solid heating device, mainly used to convert electrical energy into heat energy and transfer it to the object or air that needs to be heated. Glow plugs are widely used in various heating occasions, such as household appliances, industrial heating, and medical equipment. In the automotive field, glow plugs are mainly used for the starting preheating of diesel engines to improve the starting performance.

[0003] The existing glow plugs will cause the heating tubes of the glow plugs to be ablated when heated for a long time or the temperature in the combustion chamber is too high. This will affect the normal use of the glow plugs. Since the components of the glow plugs cannot be disassembled and replaced, only the whole can be replaced. Therefore, the existing glow plugs have low durability and high use costs. For this reason, we provide a glow plug with strong durability. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problem of low durability of the existing glow plugs and provide a glow plug with strong durability.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: A glow plug with strong durability, including: a main body mechanism, the main body mechanism includes a glow plug body, a heating tube is sleeved inside the glow plug body, the heating tube is slidably connected to the glow plug body, a fixing block is fixedly connected to the outer surface of the heating tube, a limiting block is arranged on one side surface of the fixing block, the limiting block is fixedly connected to the heating tube, a guiding groove is opened on the glow plug body, a clamping groove is opened inside the glow plug body, and a fixing mechanism is arranged inside the glow plug body. The fixing mechanism includes an installation block, the installation block is sleeved inside the glow plug body, the installation block is slidably connected to the glow plug body, a fixing groove is opened on the installation block, and a moving block is arranged inside the installation block.

[0006] As a preferred implementation manner, the number of the moving blocks is two, the moving blocks are slidably connected to the installation block, and moving grooves are opened on the installation block.

[0007] As a preferred implementation manner, a clamping column is fixedly connected to one end of the moving block, and an embedded groove is opened on the moving block.

[0008] As a preferred implementation manner, a connecting rod is arranged on one side surface of the moving block, and the connecting rod is fixedly connected to the moving block.

[0009] As a preferred embodiment, the connecting rod penetrates through the inside of the mounting block, and the connecting rod is slidably connected to the mounting block.

[0010] As a preferred embodiment, a limiting piece is fixedly connected to one end of the connecting rod away from the moving block, and a spring is provided on one side surface of the limiting piece.

[0011] As a preferred embodiment, both ends of the spring are respectively fixedly connected to the outer surface of the limiting piece and the inner wall of the mounting block.

[0012] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0013] In the present utility model, by providing the main body mechanism, and the glow plug body and the heating tube can be separated. Thus, when the heating tube is damaged, the heating tube can be replaced, and the components that do not need to be replaced can continue to be used. Furthermore, the durability of the glow plug is stronger, and at the same time, a part of the use cost of the glow plug is saved, making the economic benefit of the glow plug maximized. By providing the guiding groove, the heating tube can be positioned and installed, so that the fixing block can be in an appropriate position to be connected to the fixing mechanism, thereby achieving the purpose of replacing the heating tube. By providing the fixing mechanism, the replaceable vulnerable part, the heating tube, can be replaced. At the same time, since the fixing mechanism is installed inside the glow plug body, it will not affect the normal installation and use of the glow plug. By providing the embedding groove, when the maintenance personnel replace the heating tube, they can use the cooperation between the auxiliary tool and the embedding groove to release the connection between the fixing mechanism and the glow plug body. Description of the Drawings

[0014] Figure 1 Is a perspective view of a glow plug with strong durability provided by the present utility model.

[0015] Figure 2 Is a sectional perspective view of a glow plug with strong durability provided by the present utility model.

[0016] Figure 3 Is a perspective view of the fixing mechanism of a glow plug with strong durability provided by the present utility model.

[0017] Figure 4 Is a schematic diagram of the spring installation of a glow plug with strong durability provided by the present utility model.

[0018] Figure 5 Is an enlarged view of area A of a glow plug with strong durability provided by the present utility model.

[0019] Figure 6 Is an enlarged view of area B of a glow plug with strong durability provided by the present utility model.

[0020] Legend Explanation:

[0021] 1. Main body mechanism; 2. Fixing mechanism; 11. Glow plug body; 12. Heating tube;

[0022] 13. Fixing block; 14. Limiting block; 15. Guide groove; 16. Card slot; 21. Mounting block;

[0023] 22. Fixing slot; 23. Moving block; 24. Moving groove; 25. Card post; 26. Embedded groove;

[0024] 27. Connecting rod; 28. Limiting piece; 29. Spring. Specific implementation mode

[0025] 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 making creative efforts shall fall within the protection scope of the present invention.

[0026] Embodiment 1

[0027] As Figures 1 - 6 shown, the present invention provides a technical solution: a glow plug with strong durability, including: a main body mechanism 1, the main body mechanism 1 includes a glow plug body 11, a heating tube 12 is sleeved inside the glow plug body 11, the heating tube 12 is slidably connected to the glow plug body 11, a fixing block 13 is fixedly connected to the outer surface of the heating tube 12, a limiting block 14 is arranged on one side surface of the fixing block 13, the limiting block 14 is fixedly connected to the heating tube 12, a guide groove 15 is opened on the glow plug body 11, a card slot 16 is opened inside the glow plug body 11, and a fixing mechanism 2 is arranged inside the glow plug body 11. The fixing mechanism 2 includes a mounting block 21, the mounting block 21 is sleeved inside the glow plug body 11, the mounting block 21 is slidably connected to the glow plug body 11, and a fixing slot 22 is opened on the mounting block 21.

[0028] In this embodiment, by setting the guide groove 15, the heating tube 12 can be positioned and installed, so that the fixing block 13 can be placed at a position suitable for the fixing slot 22 opened on the mounting block 21. At the same time, the setting of the limiting block 14 prevents the fixing block 13 from rotating and shifting after being released from the restriction of the guide groove 15, playing a role in fixing the positions of the heating tube 12 and the fixing block 13. By opening the card slot 16 inside the glow plug body 11, it can be used in cooperation with the card post 25. When the card post 25 enters the card slot 16, the mounting block 21 can be in a stable state with the glow plug body 11. At the same time, the installation of the mounting block 21 does not affect the normal use of the entire glow plug. Therefore, the glow plug can achieve the purpose of improving durability by replacing the vulnerable part, the heating tube 12.

[0029] Example 2

[0030] As Figures 1 - 6 shown, a moving block 23 is provided inside the mounting block 21. The number of the moving blocks 23 is two. The moving blocks 23 are slidably connected to the mounting block 21. A moving groove 24 is formed in the mounting block 21. One end of the moving block 23 is fixedly connected to a clamping post 25. An embedding groove 26 is formed in the moving block 23. A connecting rod 27 is provided on one side surface of the moving block 23. The connecting rod 27 is fixedly connected to the moving block 23. The connecting rod 27 penetrates through the inside of the mounting block 21. The connecting rod 27 is slidably connected to the mounting block 21. One end of the connecting rod 27 away from the moving block 23 is fixedly connected to a limiting piece 28. A spring 29 is provided on one side surface of the limiting piece 28. Two ends of the spring 29 are respectively fixedly connected to the outer surface of the limiting piece 28 and the inner wall of the mounting block 21.

[0031] In this embodiment, by providing the moving groove 24, the moving block 23 can be moved, and then the clamping post 25 and the connecting rod 27 can be squeezed and adjusted. By providing the limiting piece 28, the spring 29 can be compressed under the drive of the connecting rod 27, and the spring 29 generates an elastic force. The elastic force of the spring 29 can act on the limiting piece 28, the connecting rod 27 and the moving block 23 in reverse. Then the moving block 23 can squeeze and engage the clamping post 25 into the clamping groove 16. At the same time, under the action of the spring 29, the fit between the clamping post 25 and the clamping groove 16 will maintain a stable state.

[0032] Working principle:

[0033] As Figures 1 - 6As shown in the figure, when the utility model is in use, if the heating tube 12 is damaged, the heating tube 12 can be replaced. At this time, align the fixing block 13 and the limiting block 14 fixedly connected to the heating tube 12 with the guiding groove 15 opened on the electric heating plug body 11, and position and install them into the electric heating plug body 11 through the guiding groove 15. When the heating tube 12 can no longer slide, the fixing block 13 will be in an appropriate position. At this time, install the installation block 21. Insert the tip of the auxiliary tool into the insertion grooves 26 opened on the two moving blocks 23, and simultaneously squeeze the two moving blocks 23 towards each other. At this time, the moving blocks 23 will drive the limiting piece 28 to compress the spring 29 by means of the connecting rod 27, so that the spring 29 generates elastic force. When the clamping posts 25 and the moving blocks 23 are both placed in the moving groove 24, the installation block 21 can be installed to enter the interior of the electric heating plug body 11. When the installation block 21 fits with the electric heating plug body 11, the fixing block 13 will enter the fixing groove 22. At this time, slowly loosen the auxiliary tool, and the elastic force of the spring 29 will be gradually released and act on the moving blocks 23 in the opposite direction, so that the moving blocks 23 drive the clamping posts 25 to enter the clamping grooves 16 opened in the electric heating plug body 11 until the clamping posts 25 are completely clamped into the clamping grooves 16. At this time, the replacement of the heating tube 12 is completed, and the electric heating plug can be used continuously.

[0034] The above is only a preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent change equivalent embodiments and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. An electrothermal plug with strong durability, characterized in that, Comprising: A main body mechanism (1), the main body mechanism (1) includes a glow plug body (11), a heating tube (12) is sleeved inside the glow plug body (11), the heating tube (12) is slidably connected to the glow plug body (11), a fixing block (13) is fixedly connected to the outer surface of the heating tube (12), a limiting block (14) is arranged on one side surface of the fixing block (13), the limiting block (14) is fixedly connected to the heating tube (12), a guiding groove (15) is formed on the glow plug body (11), a clamping groove (16) is formed inside the glow plug body (11), and a fixing mechanism (2) is arranged inside the glow plug body (11). The fixing mechanism (2) includes a mounting block (21), the mounting block (21) is sleeved inside the glow plug body (11), the mounting block (21) is slidably connected to the glow plug body (11), a fixing groove (22) is formed on the mounting block (21), and a moving block (23) is arranged inside the mounting block (21).

2. The durable glow plug according to claim 1, characterized in that: The number of the moving blocks (23) is two, the moving blocks (23) are slidably connected to the mounting block (21), and a moving groove (24) is formed on the mounting block (21).

3. The glow plug with strong durability according to claim 2, wherein: One end of the moving block (23) is fixedly connected with a clamping post (25), and an embedding groove (26) is formed on the moving block (23).

4. A glow plug with strong durability according to claim 3, characterized in that: A connecting rod (27) is arranged on one side surface of the moving block (23), and the connecting rod (27) is fixedly connected to the moving block (23).

5. The glow plug with strong durability according to claim 4, characterized in that: The connecting rod (27) penetrates through the inside of the mounting block (21), and the connecting rod (27) is slidably connected to the mounting block (21).

6. The glow plug with strong durability according to claim 5, characterized in that: One end of the connecting rod (27) far away from the moving block (23) is fixedly connected with a limiting piece (28), and a spring (29) is arranged on one side surface of the limiting piece (28).

7. The glow plug with strong durability according to claim 6, wherein: Two ends of the spring (29) are respectively fixedly connected to the outer surface of the limiting piece (28) and the inner wall of the mounting block (21).

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