Glow plug with protection mechanism
By designing a separate structure with a protective mechanism on the vehicle preheating plug, the problem of waste of resources and loss of functions caused by the integration of protective components and preheating plugs in the prior art is solved, and the longer life and rapid replacement of the preheating plug are achieved.
Patent Information
- Application Number
- CN202421500956.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-06-27
AI Technical Summary
The protective components and the preheating plug of existing automobile preheating plugs are often arranged in an integrated manner, which causes the entire preheating plug to be replaced when the connection or external components are damaged, resulting in wasted resources and loss of protection function.
A preheating plug with a protective mechanism is designed. By setting up the mutual cooperation between the cover body and the protective mechanism, the split design of the connecting cabin body, the limiting block, the spring member and the cover body body is used to realize dual position buffering and rapid replacement of the preheating plug.
It effectively prevents deformation and damage of the preheating plug, realizes rapid replacement of protective components, avoids waste of resources, and improves the service life of the preheating plug.
Smart Images

Figure CN222596200U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile preheating plug protection, in particular to a preheating plug with a protection mechanism. Background Art
[0002] A glow plug is a preheating device for a diesel engine.
[0003] When installing some existing automobile preheating plugs, the threaded port is installed at a predetermined position, the air supply is connected to the pipe, and the pipe connection is connected by an anti-dropping piece. If the preheating plug has an external protective component to protect it, the protective component and the preheating plug are often connected to each other in an integrated setting. When the connection or the external component is damaged to a certain extent, the preheating plug often needs to be replaced. If the preheating plug is intact, it will cause a waste of resources. At this time, the protective component loses its protection for the preheating plug to achieve the expected longer use period. To a certain extent, it has a certain degree of inapplicability and certain technical defects. Utility Model Content
[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art. Since the protection component and the preheating plug are often connected to each other in an integrated setting, when the connection or the external component is damaged to a certain extent, the preheating plug often needs to be replaced. If the preheating plug is intact, it will cause a waste of resources. At this time, the protection component loses its protection for the preheating plug. In order to achieve the expectation of longer use, a preheating plug with a protection mechanism is provided.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a preheating plug with a protection mechanism, comprising: a preheating plug body, a gas port end is provided at the top of the preheating plug body, a threaded connection end is provided on the outer surface of the bottom end of the preheating plug body, and a protection mechanism is provided on the outer surface of the preheating plug body, the protection mechanism comprises a connecting cabin, the inner wall of the connecting cabin is snap-connected with the outer surface of the preheating plug body, the bottom inner wall of the connecting cabin is threadedly connected to the inner wall of the threaded connection end, a retaining threaded end is provided on the bottom outer surface of the connecting cabin, the inner wall of the connecting cabin is fixedly connected to the outer surface of the limiting block, the inner wall of the limiting block is connected through the outer surface of the preheating plug body, one side of the limiting block is fixedly connected to one end of the spring member, the other end of the spring member is fixedly connected to a pressing block, the outer surface of the pressing block is slidably connected to the inner wall of the connecting cabin, the top of the pressing block is engaged and connected to the bottom of the connecting block, and the inner wall of the pressing block is connected through the outer surface of the preheating plug body.
[0006] As a preferred embodiment, four sides of the outer surface of the connection cabin are fixedly connected to limiting blocks, and four sides of the connection cabin are provided with through grooves.
[0007] As a preferred implementation, a sliding groove is provided on the inner side of the limit block, and a limit groove is provided on one side of the limit block.
[0008] As a preferred embodiment, sliding ends are provided on four sides of the connection block, outer surfaces of the sliding ends are slidably connected to inner walls of the slide grooves, and a cover body is provided on the inner wall of the connection block.
[0009] As a preferred embodiment, the top outer surface of the cover body is provided with an external threaded end, the bottom outer surface of the cover body is threadedly connected to the inner wall of the connecting block, and the top inner wall of the cover body is fixedly connected with an anti-slip pad.
[0010] As a preferred embodiment, the top of the cover body is provided with an external threaded end, the interior of the cover body is provided with an empty groove, and the interior of the empty groove is arranged on the top outer surface of the preheat plug body.
[0011] Compared with the prior art, the advantages and positive effects of the utility model are:
[0012] The utility model can be connected to the internal and external components of the automobile through the cooperation between the set cover body and the protection mechanism, through the connecting cabin body set in the protection mechanism and the fixed threaded end opened therein and the external threaded end opened by the cover body. In this process, the limit block connected to the connecting cabin body and the limit groove opened therein can be installed in a positioning anti-displacement manner. When the installation is completed, the limit block and the spring member connected to the connecting cabin body and the empty groove opened by the cover body can buffer the preheat plug body at both the bottom and top positions, thereby preventing it from deformation. The split setting can make it possible to quickly and conveniently replace the connection component between the cover body and the connecting cabin body when it is damaged, thereby solving the inapplicability of integrated protection. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 The utility model is provided with a three-dimensional schematic diagram of the external overall structure of a preheating plug with a protection mechanism.
[0014] Figure 2 The present invention is a three-dimensional structural diagram of a preheating plug with a protective mechanism in a split state.
[0015] Figure 3 The utility model provides a three-dimensional structural diagram of a cover body of a preheating plug with a protection mechanism, its connecting components and some components of the protection mechanism in a cross-sectional state.
[0016] Legend:
[0017] 1. Glow plug body; 11. Gas port end; 12. Threaded connection end;
[0018] 2. Cover body; 21. External threaded end; 22. Anti-slip pad; 23. Empty slot;
[0019] 3. Protective mechanism; 31. Connecting cabin; 32. Retaining threaded end; 33. Limiting block; 34. Limiting groove; 35. Connecting block; 36. Slide groove; 37. Limiting block; 38. Pressing block; 39. Spring member. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] Example 1
[0022] like Figure 1 - Figure 3 As shown, the utility model provides a technical solution: a preheating plug with a protection mechanism, comprising: a preheating plug body 1, a gas port end 11 is provided at the top of the preheating plug body 1, a threaded connection end 12 is provided on the outer surface of the bottom end of the preheating plug body 1, a protection mechanism 3 is provided on the outer surface of the preheating plug body 1, and the protection mechanism 3 comprises a connecting chamber 31, the inner wall of the connecting chamber 31 is snap-connected with the outer surface of the preheating plug body 1, the bottom inner wall of the connecting chamber 31 is threadedly connected with the inner wall of the threaded connection end 12, and the bottom outer wall of the connecting chamber 31 is threadedly connected with the inner wall of the threaded connection end 12. A retaining threaded end 32 is provided on the surface, the inner wall of the connecting chamber 31 is fixedly connected to the outer surface of the limiting block 37, the inner wall of the limiting block 37 is connected through the outer surface of the preheat plug body 1, one side of the limiting block 37 is fixedly connected to one end of a spring member 39, the other end of the spring member 39 is fixedly connected to a pressing block 38, the outer surface of the pressing block 38 is slidably connected to the inner wall of the connecting chamber 31, the top of the pressing block 38 is engaged and connected to the bottom of the connecting block 35, and the inner wall of the pressing block 38 is connected through the outer surface of the preheat plug body 1.
[0023] In this embodiment, the preheat plug body 1 can provide a stable preheating effect on the intake air, the protective mechanism 3 can provide a stable connection and provide protection for the preheat plug body 1, the preheat plug body 1 can be connected to the pipe fitting through the air port end 11 set at the top and provide the effect of air supply, the preheat plug body 1 can provide a connection effect through the threaded connection end 12 set, and the preheat plug body 1 can be inserted into the connection cabin 31 through the bottom thereof, and during the insertion process, the connection cabin 31 can be rotated, and the rotation of the connection cabin 31 will connect the inner wall thread opened therein with the threaded connection end 12, and the connection cabin 31 can be fixed with the external component through the retaining thread end 32 opened on the outer surface, thereby achieving anti-detachment. The connection chamber 31 provides a fixing effect for the limiting block 37, and the preheat plug body 1 will penetrate the inner wall of the limiting block 37 during the process of penetrating the interior of the connection chamber 31. The limiting block 37 provides a fixing effect for the spring member 39, and the spring member 39 provides a supporting and fixing effect for the spring member 39, and the pressing block 38 can slide in the inner wall of the connection chamber 31, and when the pressing block 38 slides in the inner wall of the connection chamber 31 under pressure, it will apply pressure to the spring member 39, and when the spring member 39 is under pressure, it will deform itself and provide relative force, and the preheat plug body 1 will penetrate the inner wall of the pressing block 38 when entering the interior of the connection chamber 31, and the pressing block 38 provides a supporting effect for the connection block 35.
[0024] Example 2
[0025] like Figure 1-Figure 3 As shown, the four sides of the outer surface of the connecting cabin 31 are fixedly connected to the limiting blocks 33, and the four sides of the connecting cabin 31 are provided with through grooves, the inner sides of the limiting blocks 33 are provided with sliding grooves 36, and one side of the limiting blocks 33 is provided with limiting grooves 34. The four sides of the connecting block 35 are provided with sliding ends, and the outer surfaces of the sliding ends are slidably connected to the inner walls of the sliding grooves 36. The inner wall of the connecting block 35 is provided with a cover body 2, and the top outer surface of the cover body 2 is provided with an external threaded end 21. The bottom outer surface of the cover body 2 is threadedly connected to the inner wall of the connecting block 35. The top inner wall of the cover body 2 is fixedly connected with an anti-drop pad 22, and the top of the cover body 2 is provided with an external threaded end 21. The inside of the cover body 2 is provided with an empty groove 23, and the inside of the empty groove 23 is arranged with the top outer surface of the preheat plug body 1.
[0026] In this embodiment, the connection cabin 31 provides a fixing effect for the limit block 33, and the connection cabin 31 can allow the sliding end of the connection block 35 to slide therein through the through grooves opened on the four sides, and the limit block 33 can allow the sliding end of the connection block 35 to move therein according to its predetermined trajectory through the sliding groove 36 opened, and when the connection block 35 slides, it will slide in the inner wall of the connection cabin 31, and the limit block 33 can be positioned and installed with the external component through the limit groove 34 opened, and the cover body 2 can provide the effect of anti-deformation and pressure resistance as well as the connection of the inlet and outlet components, and the cover body 2 can allow the pipe fittings to be opened through the top outer surface After connection, it is connected with external components to realize the effect of preventing the pipe from dislodging, and the cover body 2 is connected to the connecting block 35. When the cover body 2 is subjected to force, it transfers the force to the connecting block 35, and the connecting block 35 will make its connected sliding end pass through the through groove opened in the connecting cabin 31 and slide in the sliding groove 36 opened in the limit block 33 when subjected to force, and the connecting block 35 will apply pressure to the pressing block 38. The cover body 2 provides a fixing effect for the anti-slip pad 22, and the anti-slip pad 22 can provide an anti-slip effect. The cover body 2 can be displaced through the empty groove 23, so that it can be close to the preheating plug body 1 and provide an adaptable buffer distance.
[0027] Working principle:
[0028] like Figure 1-Figure 3As shown, when the glow plug body 1 needs to be protected and connected to external components, the glow plug body 1 can be passed through the interior of the connecting chamber 31. When passing through, the connecting chamber 31 can be rotated. When the connecting chamber 31 is rotated, the fixed threaded end 32 connected thereto will be connected to the threaded connection end 12 provided on the glow plug body 1. At this time, the outer surface of the bottom of the cover body 2 and the connecting block 35 can be connected to each other. After the connection, the external pipe fitting can be inserted into the top of the cover body 2 and the pipe fitting can be pressed by the anti-drop pad 22 connected to the cover body 2, and the pipe fitting will be inserted into the air port end 11 opened in the glow plug body 1. At this time, the external threaded end 21 opened on the top of the glow plug body 1 can be connected to the external retaining piece. When pressure is applied to either side of the cover body 2 or the connecting chamber 31, the cover body 2 The sliding end of the connected connecting block 35 will pass through the through groove provided in the connecting cabin 31, and slide in the sliding groove 36 provided in the limiting block 33, and the connecting block 35 will slide in the inner wall of the connecting cabin 31, and in this process, the connecting block 35 will apply pressure to the pressing block 38, and when the pressing block 38 is subjected to pressure, it will slide in the inner wall of the connecting cabin 31, and apply pressure to the spring member 39 connected to the limiting block 37 connected to the connecting cabin 31 to deform it and provide a buffering effect, and the limiting groove 34 provided in the limiting block 33 connected to the connecting cabin 31 can be installed in a positioning manner and provide an anti-displacement effect, and when some components of the cover body 2 are damaged or components in the connecting cabin 31 are damaged, the connection with the external components can be disconnected and separated from the preheating plug body 1, so as to be separated and replaced.
[0029] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.
Claims
1. A glow plug with a protection mechanism, characterized in that: include: A preheat plug body (1), wherein the top of the preheat plug body (1) is provided with an air port end (11), the outer surface of the bottom end of the preheat plug body (1) is provided with a threaded connection end (12), the outer surface of the preheat plug body (1) is provided with a protective mechanism (3), the protective mechanism (3) comprises a connecting chamber (31), the inner wall of the connecting chamber (31) is snap-connected with the outer surface of the preheat plug body (1), the bottom inner wall of the connecting chamber (31) is threadedly connected with the inner wall of the threaded connection end (12), the bottom outer surface of the connecting chamber (31) is provided with a retaining threaded end (32), the The inner wall of the connecting chamber (31) is fixedly connected to the outer surface of the limiting block (37), the inner wall of the limiting block (37) is connected through the outer surface of the preheat plug body (1), one side of the limiting block (37) is fixedly connected to one end of a spring member (39), the other end of the spring member (39) is fixedly connected to a pressing block (38), the outer surface of the pressing block (38) is slidably connected to the inner wall of the connecting chamber (31), the top of the pressing block (38) is engaged with the bottom of the connecting block (35), and the inner wall of the pressing block (38) is connected through the outer surface of the preheat plug body (1).
2. A glow plug with a protection mechanism according to claim 1, characterized in that: The four sides of the outer surface of the connection cabin (31) are all fixedly connected to the limiting blocks (33), and the four sides of the connection cabin (31) are all provided with through grooves.
3. A glow plug with a protection mechanism according to claim 2, characterized in that: The inner side of the limit block (33) is provided with a sliding groove (36), and one side of the limit block (33) is provided with a limit groove (34).
4. A glow plug with a protection mechanism according to claim 1, characterized in that: The four sides of the connection block (35) are provided with sliding ends, the outer surfaces of the sliding ends are slidably connected to the inner walls of the slide grooves (36), and the inner wall of the connection block (35) is provided with a cover body (2).
5. A glow plug with a protection mechanism according to claim 4, characterized in that: The top outer surface of the cover body (2) is provided with an external threaded end (21), the bottom outer surface of the cover body (2) is threadedly connected to the inner wall of the connecting block (35), and the top inner wall of the cover body (2) is fixedly connected with an anti-slip pad (22).
6. A glow plug with a protection mechanism according to claim 5, characterized in that: The top of the cover body (2) is provided with an external threaded end (21), the interior of the cover body (2) is provided with a hollow groove (23), and the interior of the hollow groove (23) is arranged on the top outer surface of the preheat plug body (1).