Damage-preventing spark plug assembly tool
By employing an inclined plate and spring structure design in the spark plug assembly fixture, the problem of spark plug slippage and damage was solved, achieving stable installation and protection of the spark plug.
Patent Information
- Application Number
- CN202423315957.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing spark plug assembly fixtures are prone to causing spark plugs to slip out and become damaged during installation, and they cannot effectively secure spark plugs.
A spark plug assembly fixture designed to prevent damage is used. Multiple inclined plates and spring structures are set inside the cylinder head. The elasticity of the springs is used to clamp the ceramic insulation part of the spark plug. The length of the fixture is adjusted by a positioning component to adapt to the actual situation of the engine cylinder head.
It effectively prevents the spark plug from slipping out during installation, avoiding damage, and protects the ceramic insulation part of the spark plug, ensuring that the spark plug can be successfully installed into the engine.
Smart Images

Figure CN223858647U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to spark plug assembly technical field especially relates to a kind of spark plug assembly tooling of preventing injury. BACKGROUND
[0002] Spark plug assembly tooling is a special tool used to correctly and efficiently assemble spark plugs into engine spark plug holes. The design of this tool aims to simplify the assembly process, improve assembly accuracy and reduce the possibility of spark plug damage.
[0003] After searching, the utility model patent with Chinese patent publication No. CN217848626U discloses a spark plug sleeve, which comprises an internal hexagonal sleeve, one end of the internal hexagonal sleeve is fixedly connected with a square sleeve, a square column is slidingly inserted into the square sleeve, a recess is formed at one end of the square column inside the square sleeve, a through hole is formed at the other end of the square column, the diameter of the recess is larger than that of the through hole, a cylindrical body with two ends penetrating the square column is slidingly inserted into the through hole, the one end of the cylindrical body penetrating the recess is fixedly connected with a push block with inclined sides on both sides, a spring is fixedly connected between the push block and the bottom of the recess, and a moving block is slidingly connected on both sides of the inclined surfaces of the push block. The side of the moving block close to the inclined surface of the push block is provided with inclined surfaces in parallel and contact. The utility model has the following advantages and effects: it can simply adjust the length of the sleeve.
[0004] After searching, the above-mentioned patent handles the length adjustment of the tooling, but the device fails to handle the fixation of the spark plug inside the tooling, which easily causes the spark plug to slide out and fall from the tooling during installation by the operator, resulting in damage to the spark plug. UTILITY MODEL CONTENTS
[0005] The utility model aims to provide a kind of spark plug assembly tooling of preventing injury, and the effect of improving the protection of spark plug assembly is realized by the tool, to solve the problem of poor protection effect of spark plug assembly in prior art.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:
[0007] A kind of spark plug assembly tooling of preventing injury, including column, the cavity is arranged in the column, the notch is arranged in the lower end of the column, the lower end of the notch is communicated with the lower end of the cavity, and the plurality of plate blocks are arranged in the side wall of the cavity in the form of annular array;Vertical rod, the vertical rod is arranged on the upper end of the column, the movable rod is slidingly connected in the vertical rod, the positioning assembly is arranged between the side wall of the movable rod and the side wall of the vertical rod, the rod body is fixedly connected to the upper end of the movable rod, and the recess is arranged in the upper end of the rod body.
[0008] Preferably, the cavity sidewall is provided with a plurality of sliding grooves arranged in a ring array, the plate is slidably connected to the sliding grooves, the lower end of the sidewall of the plate is inclined, and a protective pad is fixedly connected to the sidewall of the plate.
[0009] Preferably, a plurality of springs are fixedly connected to the inner wall of the slide, and the ends of the springs are fixedly connected to the side wall of the plate.
[0010] Preferably, a rubber pad is fixedly connected to the top of the cavity, and a limit groove is provided at the lower end of the rubber pad.
[0011] Preferably, the positioning component includes a locking block, the side wall of the movable rod is provided with a slot, the locking block is slidably connected to the slot, a second spring is fixedly connected to the inner wall of the slot, and the end of the second spring is fixedly connected to the end of the locking block.
[0012] Preferably, the side wall of the vertical rod is provided with a plurality of positioning holes, which are equidistantly arranged, and the locking block is slidably connected to the positioning holes.
[0013] Compared with the prior art, the advantages of this utility model are:
[0014] 1. The operator inserts the ceramic insulator of the spark plug into the cavity. As the spark plug slides into the cavity, the ceramic insulator contacts the inclined part of the lower end of the plate side wall, causing the plate to slide into the groove. The elasticity of spring one pops the plate out of the groove, clamping multiple plates with the ceramic insulator of the spark plug. This prevents the spark plug from sliding out of the cavity and falling off during installation, which could damage the spark plug. At the same time, the installed protective pad protects the ceramic insulator of the spark plug, preventing it from breaking during installation.
[0015] 2. After the spark plug is installed inside the cylinder head, the operator pulls the rod to make the movable rod slide inside the vertical rod. Then, the movable rod is positioned by the positioning component, thereby adjusting the vertical rod, movable rod and rod body to the appropriate length. This avoids the situation where the spark plug cannot be installed because the length inside the engine cylinder head is too long and the operator does not have an extension rod. This makes it easier to install the spark plug inside the engine. Attached Figure Description
[0016] Figure 1 This is a front view of the external structure of a spark plug assembly fixture for preventing damage, as proposed in this utility model.
[0017] Figure 2 This is a front sectional view of a spark plug assembly fixture for preventing damage, as proposed in this utility model.
[0018] Figure 3The utility model provides a kind of spark plug assembly tool of preventing injury's external structure schematic diagram of elevation.
[0019] Figure 4 The utility model provides a kind of spark plug assembly tool of preventing injury's side wall section structure schematic diagram.
[0020] In the drawing: 1 column, 2 cavity, 3 slot, 4 sliding groove, 5 slab, 6 spring one, 7 rubber pad, 8 limit slot, 9 vertical rod, 10 positioning hole, 11 movable rod, 12 hole slot, 13 clamping block, 14 spring two, 15 rod body, 16 recess. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.
[0022] REFERENCE Figures 1-4 A kind of spark plug assembly tool of preventing injury, including column 1, column 1 inside is provided with cavity 2, column 1 lower end is provided with slot 3, slot 3 lower end is communicated with the lower end of cavity 2, cavity 2 side wall is arranged with multiple slab 5 in annular array distribution;Vertical rod 9, vertical rod 9 is located in the upper end of column 1, movable rod 11 is slidably connected in the inside of vertical rod 9, and positioning assembly is arranged between the side wall of movable rod 11 and the side wall of vertical rod 9, the upper end of movable rod 11 is fixedly connected with rod body 15, and recess 16 is arranged in the upper end of rod body 15, slot 3 is provided as hexagonal, recess 16 is provided as square, and the porcelain insulating part of spark plug is extended to the inside of cavity 2 by operator, so that the side wall of multiple slab 5 is attached to the side wall of porcelain insulating part, to clamp the spark plug, avoid the spark plug from sliding out and falling from the inside of cavity 2 when the operator installs the spark plug, cause the spark plug to be damaged, and the hexagonal body on the side wall of spark plug is slid to the inside of slot 3, after the spark plug is installed in the inside of column 1, the operator pulls rod body 15, so that movable rod 11 slides in the inside of vertical rod 9, and then the movable rod 11 is positioned by the positioning assembly arranged, so that vertical rod 9, movable rod 11 and rod body 15 are adjusted to appropriate length, the operator extends the spark plug to the engine spark plug hole through tool, then the operator extends the square part of ratchet wrench to the inside of recess 16, rotates the tool by ratchet wrench, and the tool drives the spark plug to rotate, so that the spark plug is installed in the inside of engine.
[0023] The cavity 2 side wall annular array distribution is provided with a plurality of sliding grooves 4, the plate 5 is slidably connected with the sliding groove 4, the plate 5 side wall lower end is inclined, the plate 5 side wall is fixedly connected with a protective pad, the spark plug ceramic insulation part contacts with the plate 5 side wall lower end inclined part in the process of sliding into the cavity 2, so that the plate 5 part slides into the sliding groove 4, and the protective pad is installed to protect the spark plug ceramic insulation part, so that the spark plug ceramic insulation part is prevented from being broken during installation.
[0024] The sliding groove 4 inner wall is fixedly connected with a plurality of springs 6, the spring 6 end is fixedly connected with the plate 5 side wall, the plate 5 is ejected by the elasticity of the spring 6 and shrinks into the sliding groove 4, so that the plurality of plates 5 clamp the spark plug ceramic insulation part.
[0025] The cavity 2 inner top is fixedly connected with a rubber pad 7, the rubber pad 7 lower end is provided with a limiting groove 8, the spark plug is installed in the column body 1, the spark plug wire nut extends into the limiting groove 8, and the rubber pad 7 is wrapped to protect it.
[0026] The positioning assembly includes a clamping block 13, the movable rod 11 side wall is provided with a hole slot 12, the clamping block 13 is slidably connected with the hole slot 12, the hole slot 12 inner wall is fixedly connected with a spring 14, the spring 14 end is fixedly connected with the clamping block 13 end, and the clamping block 13 is ejected by the elasticity of the spring 14 and shrinks into the hole slot 12.
[0027] The vertical rod 9 side wall is provided with a plurality of positioning holes 10, the plurality of positioning holes 10 are equidistantly arranged, the clamping block 13 is slidably connected with the positioning hole 10, and the clamping block 13 is ejected from the hole slot 12 and slid into the corresponding positioning hole 10 after the movable rod 11 slides in the vertical rod 9 by a proper distance, so that the movable rod 11 is positioned.
[0028] In the utility model, the operator extends the spark plug ceramic insulation part into the cavity 2, the spark plug ceramic insulation part contacts with the plate 5 side wall lower end inclined part in the process of sliding into the cavity 2, so that the plate 5 part slides into the sliding groove 4, the plate 5 is ejected by the elasticity of the spring 6 and shrinks into the sliding groove 4, so that the plurality of plates 5 clamp the spark plug ceramic insulation part.
[0029] After the spark plug is installed in the column body 1, the operator pulls the rod body 15, so that the movable rod 11 slides in the vertical rod 9, and then the movable rod 11 is positioned by the positioning assembly, so that the vertical rod 9, the movable rod 11 and the rod body 15 are adjusted to a proper length, and the length of the engine cylinder cover is prevented from being too long.
[0030] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.
Claims
1. A spark plug assembly tool for preventing damage, characterized by, The utility model relates to a kind of column and its positioning device, including Column (1), the cavity (2) is provided with in the column (1) inside, the notched (3) is provided with in the column (1) lower end, the notched (3) lower end is communicated with the cavity (2) lower end, the cavity (2) side wall annular array distribution is provided with multiple slab (5); Vertical pole (9), the vertical pole (9) is located in the column (1) upper end, the movable rod (11) is slidably connected in the vertical pole (9) inside, the movable rod (11) side wall and the vertical pole (9) side wall between being provided with positioning assembly, the movable rod (11) upper end is fixedly connected with rod body (15), the rod body (15) upper end is provided with recess (16).
2. The spark plug assembly tool of claim 1, wherein: The cavity (2) side wall annular array distribution is provided with multiple sliding slot (4), the slab (5) is slidably connected with sliding slot (4), the slab (5) side wall lower end is inclined, and the slab (5) side wall is fixedly connected with protective pad.
3. The spark plug assembly tool of claim 2 wherein: The sliding slot (4) inner wall is fixedly connected with multiple spring one (6), and the spring one (6) end is fixedly connected with the slab (5) side wall.
4. The spark plug assembly tool of claim 1 wherein: The rubber pad (7) lower end is provided with limiting groove (8) in the cavity (2) inner top.
5. The spark plug assembly tool of claim 1 wherein: The positioning assembly includes clamping block (13), the movable rod (11) side wall is provided with hole slot (12), the clamping block (13) is slidably connected with hole slot (12), the hole slot (12) inner wall is fixedly connected with spring two (14), and the spring two (14) end is fixedly connected with the clamping block (13) end.
6. The spark plug assembly tool of claim 5 wherein: The vertical pole (9) side wall is provided with multiple positioning holes (10), and multiple positioning holes (10) are equidistantly arranged, and the clamping block (13) is slidably connected with positioning hole (10).
Citation Information
Patent Citations
Spark plug sleeve
CN217848626U