Glow plug convenient to insert
By improving the structural design of the glow plug, including the electrical connection of the connector, heating element and plug unit, combined with the protective sleeve and threaded connection, the problem of unstable installation of the glow plug on the engine was solved, and the effects of stable power transmission and easy maintenance were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO XINGCI THERMAL ELECTRIC APPLIANCES
- Filing Date
- 2025-05-21
- Publication Date
- 2026-04-28
AI Technical Summary
Existing glow plugs are not securely installed on engines, are prone to rusting and loosening, leading to poor contact and circuit failures. Disassembly is cumbersome and affects engine starting.
An electric glow plug structure including a connector, a heating element, a connecting assembly, and a plug unit is designed. The plug unit is electrically connected to the heating element through a wire. The connector is equipped with a protective sleeve and a threaded connection to ensure stable power transmission and facilitate maintenance.
It improves the stability and reliability of glow plugs, prevents contaminant contact, extends service life, enhances product versatility and maintainability, and ensures effective engine preheating.
Smart Images

Figure CN224178323U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of glow plugs, and more particularly to a glow plug that is easy to insert. Background Technology
[0002] During engine startup, especially in low-temperature environments, the air temperature inside the combustion chamber is low, making it difficult for fuel to evaporate quickly and form a combustible mixture, thus causing engine starting difficulties. Glow plugs, as an engine starting aid, preheat the air inside the combustion chamber before starting, increasing the air temperature and making it easier for fuel to evaporate and burn, thereby improving the engine's low-temperature starting performance.
[0003] Currently, existing glow plugs on the market have some shortcomings in terms of structural design and performance. Traditional glow plugs are mainly installed on the engine through threaded connections. Moisture can easily seep in through the bolt gaps, causing rust, loose connections, poor contact, and other problems, which can affect the normal operation of the glow plugs and may even lead to circuit failures, affecting engine starting. In addition, removing the bolts is cumbersome, and maintenance and replacement are time-consuming and labor-intensive. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a conveniently inserted glow plug, based on the current state of the technology.
[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a conveniently inserted heating plug, including a heating plug body, the heating plug body including a connecting seat and a heating element passing through the lower end of the connecting seat, the upper end of the connecting seat being provided with a connecting component; the end of the connecting component away from the connecting seat being provided with a plug unit.
[0006] The effect achieved by the above components is as follows: by setting the glow plug body including the connector and the heating element passing through the lower end of the connector, the upper end of the connector is provided with the connecting component, and the end of the connecting component away from the connector is provided with the plug unit, the basic structural composition of the glow plug is clarified, the connection relationship between the components is clear, which is conducive to the stability and functionality of the overall structure, provides a reasonable path architecture for the current to be conducted to the heating element, and ensures the basic structure for the normal operation of the glow plug.
[0007] Preferably, the connection assembly includes a wire, and the plug unit is electrically connected to the heating element via the wire passing through the connector.
[0008] The effect achieved by the above components is as follows: by setting the connection component to include wires, and the plug unit to be electrically connected to the heating element through the wires passing through the connector, the electrical energy obtained by the plug unit is smoothly transmitted to the heating element by utilizing the good conductivity of the wires, ensuring that the heating element can heat up normally and meet the engine preheating requirements. This connection method is simple, direct and highly reliable, and easy to implement and maintain in practical applications.
[0009] Preferably, the plug unit includes a plug socket and pins disposed along the plug socket.
[0010] The effects achieved by the above components are as follows: by setting the plug unit including the plug socket and the pins set along the plug socket, the standard plug socket and pin design facilitates accurate connection with external power supply and ensures stable power input. On the other hand, this universal design improves the compatibility of glow plugs with different power interfaces, making it easy to use in various engine systems and enhancing the versatility and interchangeability of the product.
[0011] Preferably, a protective sleeve is provided on the upper end of the connector.
[0012] The effects achieved by the above components are as follows: by setting a protective cover on the upper end of the connector, the protective cover can effectively block external pollutants such as dust and moisture, prevent them from contacting the connecting components, avoid circuit failures caused by pollution, extend the service life of related components in the connecting part, ensure the stability of the glow plug in various environments, and improve the durability of the product.
[0013] Preferably, a through-wire component is provided inside the connector via a threaded connection.
[0014] The effect achieved by the above components is as follows: by setting a wire guide in the connector with a threaded connection, the wire guide fixes and guides the wire, so that the wire is arranged in an orderly manner in the connector, avoiding wire tangling and wear, thereby improving the reliability and stability of the circuit connection. Moreover, the threaded connection method facilitates the installation and disassembly of the wire guide, making it convenient for the wire or wire guide to be maintained and replaced later, thus improving the maintainability of the product.
[0015] Preferably, the lower end of the connecting seat is provided with a threaded connecting seat.
[0016] The effects achieved by the above components are as follows: by setting a threaded connection seat at the lower end of the connection seat, the connection between the glow plug and the engine is more stable and convenient. During installation, it can be quickly and accurately positioned and installed. During engine operation, it can also ensure the tightness of the connection, prevent the glow plug from loosening and affecting the preheating effect, and ensure the reliable installation and use of the glow plug in the engine system.
[0017] Compared with existing technologies, the advantages of this invention are as follows: By designing the glow plug body including a connector, heating element, connecting assembly, and plug unit, a stable and reasonable working structure is constructed. The connecting assembly achieves electrical connection between the plug unit and the heating element through wires, ensuring effective power transmission. The plug unit adopts a plug and pin design, facilitating connection with external power sources and offering strong versatility. The protective sleeve at the upper end of the connector can block dust and moisture, extending the life of the connection parts and ensuring operational stability. The threaded connection of the connecting plug securely fixes and guides the wires, preventing tangling and wear, improving circuit reliability, and facilitating maintenance and replacement. The threaded connector at the lower end of the connector ensures a secure and convenient connection between the glow plug and the engine, guaranteeing reliable installation and use. These designs collectively improve the performance, durability, and maintainability of the glow plug. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a cross-sectional structural diagram of the present invention.
[0020] Reference numerals: 1. Glow plug body; 2. Connector; 3. Heating element; 4. Connecting assembly; 5. Plug unit; 6. Wire; 7. Plug socket; 8. Pin; 9. Protective sleeve; 10. Through wire; 11. Threaded connector. Detailed Implementation
[0021] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.
[0022] It should be noted that all directional indicators in this utility model embodiment, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0023] Furthermore, in addition to indicating orientation or positional relationship, the aforementioned terms may also be used to indicate other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. For those skilled in the art, the specific meaning of these terms in this utility model can be understood according to the specific circumstances.
[0024] Furthermore, the terms "installation," "setting," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral structures; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or internal connections between two devices, components, or parts. The connection methods described herein are existing technologies without any modifications and are common knowledge to those skilled in the art. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0025] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0026] In this embodiment 1,
[0027] like Figures 1 to 2 As shown, this utility model provides a conveniently inserted heating plug, including a heating plug body 1. The heating plug body 1 includes a connecting seat 2 and a heating element 3 passing through the lower end of the connecting seat 2. A connecting component 4 is provided at the upper end of the connecting seat 2. A plug unit 5 is provided at the end of the connecting component 4 away from the connecting seat 2.
[0028] By setting the glow plug body 1 to include a connecting base 2 and a heating element 3 passing through the lower end of the connecting base 2, and a connecting component 4 set at the upper end of the connecting base 2, and a plug unit 5 set at the end of the connecting component 4 away from the connecting base 2, the basic structural composition of the glow plug is clarified, making the connection relationship between the components clear, which is conducive to the stability and functionality of the overall structure, and provides a reasonable path architecture for the current to be conducted to the heating element 3, ensuring the basic structure for the normal operation of the glow plug.
[0029] The connection component 4 includes a wire 6, and the plug unit 5 is electrically connected to the heating element 3 through the wire 6 passing through the connector 2.
[0030] By setting the connection component 4 to include the wire 6, and the plug unit 5 to be electrically connected to the heating element 3 through the connector 2 via the wire 6, the electrical energy obtained by the plug unit 5 can be smoothly transmitted to the heating element 3 by utilizing the good conductivity of the wire 6, ensuring that the heating element 3 can heat up normally and meet the engine preheating requirements. This connection method is simple, direct and highly reliable, and easy to implement and maintain in practical applications.
[0031] The plug unit 5 includes a plug socket 7 and pins 8 disposed along the plug socket 7.
[0032] By setting the plug unit 5, which includes a plug socket 7 and pins 8 arranged along the plug socket 7, the standard plug socket 7 and pins 8 design facilitates precise connection with external power sources, ensuring stable power input. On the other hand, this universal design improves the compatibility of the glow plug with different power interfaces, making it easy to use in various engine systems and enhancing the product's versatility and interchangeability.
[0033] A protective sleeve 9 is provided on the upper end of the connector 2.
[0034] By setting a protective sleeve 9 on the upper end of the connector 2, the protective sleeve 9 can effectively block external pollutants such as dust and moisture, prevent them from contacting the connector 4, avoid circuit failures caused by pollution, extend the service life of related components in the connector, ensure the stability of the glow plug in various environments, and improve the durability of the product.
[0035] The connecting seat 2 is provided with a through-wire component 10 via a threaded connection.
[0036] By setting a threaded connection for the wire guide 10 inside the connector 2, the wire guide 10 fixes and guides the wire 6, so that the wire 6 is arranged in an orderly manner inside the connector 2, avoiding tangling and wear of the wire 6, thereby improving the reliability and stability of the circuit connection. Moreover, the threaded connection method facilitates the installation and removal of the wire guide 10, making it convenient for the wire 6 or the wire guide 10 to be maintained and replaced later, thus improving the maintainability of the product.
[0037] A threaded connector 11 is provided at the lower end of the connector 2.
[0038] By setting a threaded connector 11 at the lower end of the connector 2, the connection between the glow plug and the engine is made more stable and convenient. It can be quickly and accurately positioned during installation and can also ensure the tightness of the connection during engine operation, preventing the glow plug from loosening and affecting the preheating effect, thus ensuring the reliable installation and use of the glow plug in the engine system.
[0039] In this embodiment 2,
[0040] like Figures 1 to 2As shown, this utility model constructs a stable and reasonable working structure by setting the glow plug body 1, including a connecting base 2, a heating element 3, a connecting assembly 4, and a plug unit 5. The connecting assembly 4 connects the plug unit 5 and the heating element 3 via a wire 6, ensuring effective power transmission. The plug unit 5 adopts a plug socket 7 and pins 8 design, which facilitates docking with external power sources and has strong versatility. The protective sleeve 9 at the upper end of the connecting base 2 can block dust and moisture, extend the life of the connection part, and ensure working stability. The threaded wire guide 10 connected internally to the connecting base 2 can fix and guide the wire 6, avoid tangling and wear, improve circuit reliability, and facilitate maintenance and replacement. The threaded connecting base 11 at the lower end of the connecting base 2 makes the glow plug secure and convenient to connect to the engine, ensuring reliable installation and use. These designs together improve the performance, durability, and maintainability of the glow plug.
[0041] In this embodiment 3,
[0042] like Figures 1 to 2 As shown, this utility model uses the plug unit 5 as the power input port, which is connected to an external power source via pin 8. The plug socket 7 provides a fixed support structure for the pin 8, ensuring reliable connection between the pin 8 and the external power source. When the external power source is turned on, electrical energy is transmitted to the plug unit 5 via pin 8, and then through the wire 6 in the connecting assembly 4, along the path guided and fixed by the wire guide 10 within the connecting socket 2, and transmitted downwards to the heating element 3.
[0043] The wire guide 10 not only positions and protects the wire 6, preventing it from becoming tangled and damaged by friction within the connector 2, thus ensuring stable power transmission, but its threaded connection also facilitates installation and subsequent maintenance.
[0044] After receiving electrical energy, the heating element 3 uses its own resistance characteristics to convert electrical energy into heat energy, thereby preheating the air, fuel and air mixture inside the engine, and assisting the engine to start smoothly in low-temperature environments.
[0045] The threaded connector 11 at the lower end of the connector 2 is used to securely install the glow plug on the engine, ensuring that the glow plug can remain in the correct position and work reliably during engine operation.
[0046] The protective sleeve 9 installed on the upper end of the connector 2 can effectively block external pollutants such as dust and moisture, prevent them from contacting the connector 4, avoid circuit failures caused by pollution, ensure the stability and reliability of power transmission, extend the service life of the glow plug, and enable the glow plug to work normally in harsh environments.
[0047] In the description of this specification, references are made to the terms "one embodiment", "some embodiments", "example", "specific example".
[0048] The descriptions using terms such as "example" or "some examples" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0049] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, welding, and bonding that are mature in the existing technology, and will not be described in detail here.
[0050] The above description is only a preferred embodiment of this utility model. For those skilled in the art, various modifications and variations can be made in the specific implementation and application scope based on the idea of this utility model. The content of this specification should not be construed as a limitation of this utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.
Claims
1. A conveniently insertable glow plug, comprising a glow plug body, characterized in that: The glow plug body includes a connector and a heating element passing through the lower end of the connector. A connecting component is provided at the upper end of the connector. A plug unit is provided at the end of the connecting component away from the connector.
2. The conveniently inserted glow plug according to claim 1, characterized in that: The connection assembly includes wires, and the plug unit is electrically connected to the heating element via the wires passing through the connector.
3. A conveniently inserted glow plug according to claim 2, characterized in that: The plug unit includes a plug socket and pins disposed along the plug socket.
4. A conveniently inserted glow plug according to claim 3, characterized in that: A protective sleeve is provided on the upper end of the connector.
5. A conveniently insertable glow plug according to claim 4, characterized in that: The connector is equipped with a wire guide via a threaded connection.
6. A conveniently insertable glow plug according to claim 5, characterized in that: The lower end of the connector is provided with a threaded connector.