Spark plug sleeve
By designing multiple components for the spark plug sleeve, flexible adjustment of diameter and length is achieved, solving the problem of adapting the sleeve to spark plugs of different sizes and improving the convenience and stability of disassembly and assembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIMPACO COMBUSTION EQUIP (JIANGSU) CO LTD
- Filing Date
- 2025-03-19
- Publication Date
- 2026-04-17
AI Technical Summary
The existing spark plug sleeves lack a diameter adjustment mechanism, resulting in poor flexibility during use, making it difficult to adapt to different sizes of spark plugs and increasing the difficulty of disassembly and assembly.
A spark plug sleeve is designed, comprising a circular sleeve, a square sleeve, and a square sleeve rod, combined with an internal hexagonal groove, a clamping plate, and a tightening screw. The diameter is adjusted by flipping and pressing, the length is adjusted by sliding the sleeve, and auxiliary limiting is achieved by the threaded connection of the top cover, hexagonal protrusion, and positioning pin.
It improves the flexibility and convenience of the socket, can adapt to spark plugs of different sizes, simplifies operation in confined spaces, and ensures the stability and continuity of disassembly and assembly.
Smart Images

Figure CN224138512U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of spark plug technology, specifically to a spark plug sleeve. Background Technology
[0002] Spark plugs are key components in gasoline engines used to ignite fuel and generate power. If spark plugs malfunction, they will significantly affect engine performance. Therefore, spark plugs need to be replaced using a spark plug socket, which is a special tool for manually removing and installing spark plugs.
[0003] Currently, spark plug sleeves lack a diameter adjustment mechanism. Typically, spark plug sleeves require selecting the appropriate size based on the spark plug being used, resulting in limited flexibility in practical applications. Furthermore, their relatively fixed length, limited by the working environment, can increase the difficulty of disassembly and assembly. Therefore, this paper proposes a spark plug sleeve with an auxiliary diameter adjustment mechanism. Utilizing a flipping and pressing method, it can adapt to different spark plug sizes, improving flexibility and ease of disassembly and assembly, thereby enhancing performance. Utility Model Content
[0004] To address the problems in the existing technology, this utility model provides a spark plug sleeve to accommodate spark plugs of different sizes, improve the flexibility of use, and thus enhance the performance.
[0005] The technical solution adopted by this utility model to solve its technical problem is a spark plug sleeve, including a circular sleeve, a square sleeve and a square sleeve rod. The top of the circular sleeve is connected to the square sleeve by welding, and the top of the square sleeve is connected to the square sleeve rod. The top of the square sleeve rod is provided with a connecting component.
[0006] The circular sleeve has an internal hexagonal groove, and a groove is formed on the outside of the internal hexagonal groove. A clamping piece is rotatably connected in the groove, and a tightening screw corresponding to the clamping piece is threadedly connected to the outer surface of the circular sleeve through a pre-reserved threaded hole.
[0007] By adopting the above technical solution, a diameter adjustment mechanism can be added. By using the flipping and squeezing method, the size can be adjusted according to the actual spark plug size. This not only improves the flexibility of the socket, but also allows for adjustment of the overall length of use by using the sliding mechanism. This improves the convenience of operation in confined spaces and makes the use more convenient and reliable.
[0008] Specifically, the connecting assembly includes a top cover, a hexagonal protrusion is welded to the top of the top cover, a positioning post is welded to the top of the hexagonal protrusion, a threaded seat is sleeved around the positioning post, the surface of the positioning post is provided with external threads, and the threaded seat is threadedly connected to the positioning post through the external threads.
[0009] By adopting the above technical solution, the top cover, hexagonal protrusion, positioning post, threaded seat and external thread can be used to add an auxiliary limiting mechanism. By using threaded connection and clamping, the hexagonal wrench can be quickly and assisted in limiting its position, which can prevent slippage and affect the continuity of use.
[0010] Specifically, both sides of the clamp are connected to a rotating shaft by welding, and the clamp is rotatably connected to the groove through the rotating shaft. A coil spring is sleeved around the rotating shaft, and one end of the coil spring is connected by welding. An anti-slip pad is glued to one side of the clamp.
[0011] By adopting the above technical solution, the rotating shaft and coil spring facilitate the automatic flipping of the clamping plate back into the groove after the sleeve has been used, thus completing the recycling action. The anti-slip pad improves the stability of spark plug clamping.
[0012] Specifically, the bottom of the top cover is welded to a fixed seat, and the fixed seats are rotatably connected to a rotating seat via a rotating shaft. The top of the square sleeve is welded to a connecting seat, and the connecting seat is rotatably connected to the rotating seat via a rotating shaft.
[0013] By adopting the above technical solution, a simple universal joint structure can be formed by the fixed seat, rotating seat, and connecting seat, which can adapt to spark plugs with different installation angles and improve the flexibility and range of use of the sleeve.
[0014] Specifically, the outer surface of the square sleeve is threadedly connected to a positioning screw through a pre-drilled threaded hole.
[0015] By adopting the above technical solution, the positioning screw facilitates the limiting and fixing of the adjusted square sleeve.
[0016] The beneficial effects of this utility model are:
[0017] (1) The spark plug sleeve of this utility model can increase the diameter adjustment mechanism by setting a circular sleeve, a square sleeve, a square sleeve rod, an internal hexagonal groove, a clamping plate and a tightening screw. By using the flipping and squeezing method, the size can be adjusted according to the actual spark plug size. This not only improves the flexibility of the sleeve, but also adjusts the overall length of use by using the sliding method of the sleeve, thereby improving the convenience of operation in a narrow space and making it more convenient and reliable to use.
[0018] (2) The spark plug sleeve of this utility model can increase the auxiliary connection limiting mechanism by setting the top cover, hexagonal protrusion, positioning post, external thread and thread seat. During the use of the sleeve, the hexagonal wrench can be auxiliaryly positioned by using thread connection and limiting method, which can avoid slippage and affect the stability and continuity of operation. Attached Figure Description
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a schematic cross-sectional view of the circular sleeve structure of this utility model;
[0022] Figure 3 This is a schematic diagram of the clip structure of this utility model;
[0023] Figure 4 This is a schematic diagram of the connection component structure of this utility model;
[0024] Figure 5 This is a partially enlarged structural diagram of point A of this utility model;
[0025] In the diagram: 1. Circular sleeve; 101. Internal hexagonal groove; 102. Groove; 103. Clamping piece; 104. Tightening screw; 105. Rotating shaft; 106. Coil spring; 107. Anti-slip pad; 2. Square sleeve; 201. Positioning screw; 3. Square sleeve rod; 301. Connecting seat; 4. Connecting assembly; 401. Top cover; 402. Hexagonal protrusion; 403. Positioning pin; 404. Threaded seat; 405. External thread; 406. Fixed seat; 407. Rotating seat. Detailed Implementation
[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0027] To facilitate adaptation to different spark plug sizes, improve usability, and thus enhance performance, such as... Figure 1-3 As shown, the spark plug sleeve of this utility model includes a circular sleeve 1, a square sleeve 2 and a square sleeve rod 3. The top of the circular sleeve 1 is connected to the square sleeve 2 by welding. The top of the square sleeve 2 is sleeved and connected to the square sleeve rod 3. The top of the square sleeve rod 3 is provided with a connecting component 4.
[0028] The circular sleeve 1 has an internal hexagonal groove 101, and a groove 102 is formed on the outside of the internal hexagonal groove 101. A clamping piece 103 is rotatably connected in the groove 102. The outer surface of the circular sleeve 1 is threaded with a tightening screw 104 corresponding to the clamping piece 103 through a reserved threaded hole.
[0029] In use, the circular sleeve 1, square sleeve 2, square sleeve rod 3, internal hexagonal groove 101, groove 102, clamping plate 103 and tightening screw 104 can be used to increase the diameter adjustment mechanism. By flipping and squeezing, the size of the spark plug can be adjusted according to the actual size. This not only improves the flexibility of the sleeve, but also allows for adjustment of the overall length by sliding the sleeve, thereby improving the convenience of operation in confined spaces and making it more convenient and reliable to use.
[0030] To improve continuity of use, for example, such as Figure 1 , Figure 4 As shown, the present invention also includes the connecting component 4, which includes a top cover 401. A hexagonal protrusion 402 is welded to the top of the top cover 401. A positioning post 403 is welded to the top of the hexagonal protrusion 402. A threaded seat 404 is sleeved around the positioning post 403. An external thread 405 is provided on the surface of the positioning post 403, and the threaded seat 404 is threadedly connected to the positioning post 403 through the external thread 405.
[0031] When in use, the top cover 401, hexagonal protrusion 402, positioning post 403, threaded seat 404 and external thread 405 can be used to add an auxiliary limiting mechanism. By using threaded connection and clamping, the hexagonal wrench can be quickly and assisted in limiting its position, which can prevent slippage and affect the continuity of use.
[0032] For example, such as Figure 3 As shown, the present invention also includes a rotating shaft 105 welded to both sides of the clamp 103, and the clamp 103 is rotatably connected to the groove 102 through the rotating shaft 105. A coil spring 106 is sleeved around the rotating shaft 105, and one end of the coil spring 106 is welded. An anti-slip pad 107 is glued to one side of the surface of the clamp 103.
[0033] During use, by rotating the shaft 105 and the coil spring 106, the spring force can be used to automatically flip the clip 103 back into the groove 102 to complete the recycling action after the sleeve is used. The anti-slip pad 107 helps to improve the stability of the spark plug clamping.
[0034] For example, such as Figure 5As shown, the present invention also includes a fixed seat 406 welded to the bottom of the top cover 401, a rotating seat 407 rotatably connected between the fixed seats 406 via a rotating shaft, and a connecting seat 301 welded to the top of the square sleeve rod 3, and the connecting seat 301 rotatably connected to the rotating seat 407 via a rotating shaft.
[0035] When in use, a simple universal joint structure can be formed by the fixed seat 406, the rotating seat 407, and the connecting seat 301, which can adapt to spark plugs with different installation angles and improve the flexibility and range of use of the sleeve.
[0036] For example, such as Figure 1 As shown, the present invention also includes a positioning screw 201 threadedly connected to the outer surface of the square sleeve 2 through a pre-reserved threaded hole.
[0037] During use, the positioning screw 201 facilitates the limiting and fixing of the adjusted square sleeve 3.
[0038] In use, the operator first rotates the tightening screw 104 according to the actual spark plug size. The tightening screw 104 supports the clamping piece 103, causing it to rotate from the groove 102 into the internal hexagonal groove 101. Then, the circular sleeve 1 is placed around the spark plug, and the clamping piece 103 holds it to accommodate different spark plug sizes, facilitating quick insertion and positioning of the spark plug. Next, the operator places the hexagonal wrench around the hexagonal protrusion 402 and rotates the threaded seat 404. The external thread 405 connects to the positioning post 403, allowing the threaded seat 404 and the top cover 401 to quickly and assistedly position the hexagonal wrench. The operator can then move the hexagonal wrench to rotate and install the spark plug. The overall structure is simple, low-cost, easy to operate, more flexible and efficient, and has high practical value.
[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A spark plug sleeve characterized by, It includes a circular sleeve (1), a square sleeve (2) and a square sleeve rod (3). The top of the circular sleeve (1) is connected to the square sleeve (2) by welding. The top of the square sleeve (2) is connected to the square sleeve rod (3). The top of the square sleeve rod (3) is provided with a connecting component (4). The circular sleeve (1) has an internal hexagonal groove (101) inside, and a groove (102) is provided on the outside of the internal hexagonal groove (101) inside the circular sleeve (1). A clamping piece (103) is rotatably connected in the groove (102). The outer surface of the circular sleeve (1) is threaded with a tightening screw (104) corresponding to the clamping piece (103) through a reserved threaded hole.
2. A spark plug sleeve as defined in claim 1, wherein The connecting assembly (4) includes a top cover (401), the top of which is welded with a hexagonal protrusion (402), the top of which is welded with a positioning post (403), the positioning post (403) is surrounded by a threaded seat (404), the surface of which is provided with an external thread (405), and the threaded seat (404) is threadedly connected to the positioning post (403) through the external thread (405).
3. A spark plug sleeve as defined in claim 1 wherein, Both sides of the clamp (103) are connected to a rotating shaft (105) by welding, and the clamp (103) is rotatably connected to the groove (102) through the rotating shaft (105). A coil spring (106) is sleeved around the rotating shaft (105), and one end of the coil spring (106) is connected by welding. An anti-slip pad (107) is glued to one side of the surface of the clamp (103).
4. A spark plug sleeve as defined in claim 2 wherein, The bottom of the top cover (401) is connected to a fixed seat (406) by welding. The fixed seats (406) are rotatably connected to a rotating seat (407) by a rotating shaft. The top of the square sleeve rod (3) is connected to a connecting seat (301) by welding. The connecting seat (301) is rotatably connected to the rotating seat (407) by a rotating shaft.
5. A spark plug sleeve as defined in claim 1 wherein, The outer surface of the square sleeve (2) is threadedly connected to the positioning screw (201) through a pre-reserved threaded hole.