Inner dodecagonal cylinder cover bolt

Abstract

The utility model discloses an inner dodecagonal cylinder cover bolt which comprises a polished rod. One end of the polished rod is fixedly connected with a threaded rod, and one side of the threaded rod is in threaded connection with a threaded sleeve; wherein the other side of the threaded rod is provided with a first inserting groove, one side of the first inserting groove is provided with a first lap joint plate, one side of the first lap joint plate is fixedly connected with a connecting plate, one side of the connecting plate is fixedly connected with a protective piece, and the inner side of the protective piece is fixedly connected with a sponge pad; wherein a second inserting groove is formed in one side of the threaded sleeve, a second lap plate is arranged on one side of the second inserting groove, an adjusting plate is arranged on one side of the second lap plate, a supporting rod is arranged on one side of the adjusting plate, and the outer side of the threaded rod is protected through a protection piece, so that the effect of preventing the threaded rod from being collided and causing thread deformation is conveniently achieved; and the adjusting plate drives the supporting rod to rotate, separation of the protection plate and the threaded rod is achieved, and the bolt is more convenient and faster to disassemble.

Description

Technical Field

[0001] The utility model relates to the field of fastening structures, in particular to an inner twelve-angle cylinder head bolt. Background Art

[0002] A bolt is a type of fastener consisting of a head and a screw. It needs to be used in conjunction with a nut to fasten two parts with through holes. It is an anchoring component that anchors the connected parts to the hardened concrete substrate.

[0003] Patent document CN220890721U discloses a cylinder head bolt comprising a screw, a stopper, and a top block. The screw has a stopper on its top outer wall, and a top block mounted on its upper surface. The invention also includes a nut positioned directly above the screw, with a docking groove defined within the nut; a first cushioning airbag mounted on the lower surface of the nut; and a connector secured to the upper surface of the screw. The cylinder head bolt comprises a stopper on the outer surface of the screw, and a top block mounted on its upper surface. The size of the top block matches the size of the docking groove, and a stopper is positioned within the docking groove. When the screw drives the stopper upward, it also drives the top block upward, allowing the top block to enter the docking groove and squeeze the stopper. The deformation of the elastic spring mitigates the upward force, protecting the nut and reducing the impact. However, the patent has the following problems in actual use:

[0004] When the bolt is in use, the tail of the screw usually protrudes beyond the nut, causing the protruding screw to be exposed to the air. When used for a long time, the screw exposed to the air is easily deformed due to impact or prolonged contact with water in the air, or large-scale oxidation and rusting occurs, thereby affecting the disassembly of the bolt, resulting in poor practicality of the cylinder head bolt.

[0005] A twelve-corner internal cylinder head bolt is proposed to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide an internal twelve-point cylinder head bolt to solve the problem raised in the above-mentioned background technology that when the current bolt is in use, the tail of the screw rod usually protrudes beyond the nut, causing the protruding screw rod to be exposed to the air. Moreover, when used for a long time, the screw rod exposed to the air is easily deformed due to impact or long-term contact with water in the air, or a large area of ​​oxidation and rust occurs, thereby affecting the disassembly of the bolt, thereby resulting in the poor practicality of the cylinder head bolt.

[0007] To achieve the above-mentioned purpose, the present utility model provides the following technical solutions: an internal twelve-point cylinder head bolt, comprising a polished rod;

[0008] Also includes:

[0009] One end of the polished rod is fixedly connected to the inner twelve-angle end portion, and the other end of the polished rod is fixedly connected to the threaded rod, and one side of the threaded rod is threadedly connected to the threaded sleeve;

[0010] Among them, the other side of the threaded rod is provided with a plug-in groove 1, and one side of the plug-in groove 1 is provided with a lap plate 1, and one side of the lap plate 1 is provided with a parallel groove 1, and the other side of the lap plate 1 is fixedly connected to a connecting plate, and one side of the connecting plate is fixedly connected to a protective sheet, and the inner side of the protective sheet is fixedly connected to a sponge pad;

[0011] Among them, one side of the threaded sleeve is provided with a plug-in groove 2, and one side of the plug-in groove 2 is provided with a lap plate 2, and one side of the lap plate 2 is provided with a parallel groove 2, and the other side of the lap plate 2 is provided with an adjustment plate, and one side of the adjustment plate is provided with a support rod, and one end of the support rod is fixedly connected to a wing plate.

[0012] Preferably, the lap plate is plugged into the threaded rod through the plug-in groove, which facilitates the fixation of the protective sheet.

[0013] Preferably, the lap plate 1 and the lap plate 2 overlap with both sides of the threaded sleeve to facilitate positioning of the lap plate 1 and the lap plate 2.

[0014] Preferably, the parallel groove 1 is symmetrically opened on both sides of the lap plate 1, and the connecting plates are symmetrically fixedly connected to both sides of the parallel groove 1, so as to facilitate the control of the fixation of the position of the lap plate 1.

[0015] Preferably, the second lap plate is plugged into the outer side of the threaded rod through the second plug-in groove, which facilitates the positioning of the second lap plate.

[0016] Preferably, the parallel grooves 2 are symmetrically provided on both sides of the lap plate 2, and the adjustment plate is fixedly connected to the side of the lap plate 2 close to the parallel grooves 2, so as to facilitate the adjustment of the lap plate 2.

[0017] Preferably, the wing plate is fixedly connected to the side of the support rod away from the second lap plate to facilitate the positioning of the support rod.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: the inner twelve-point cylinder head bolt is convenient for protecting the outer side of the threaded rod through the protective plate, which is convenient for preventing the threaded rod from being deformed due to impact, and is also convenient for reducing the effect of oxidation of the threaded rod. Moreover, the rotation of the support rod is driven by the adjusting plate to realize the separation of the protective plate and the threaded rod, making the disassembly of the bolt more convenient and quick, thereby making the cylinder head bolt more practical. The specific contents are as follows:

[0019] 1. The cylinder head bolt is provided with a connecting plate, parallel grooves, a connecting plate, a protective sheet, and a sponge pad. After the threaded sleeve is installed, the protective sheet protects the outer side of the threaded rod, thereby preventing the threaded rod from being deformed due to impact and reducing the effect of oxidation on the threaded rod. This facilitates the removal of the bolt and extends the service life of the bolt, thereby making the cylinder head bolt more practical.

[0020] 2. The cylinder head bolt is provided with a lap plate 2, an adjustment plate, a support rod and a wing plate, so that the support rod can be driven to rotate by the adjustment plate, thereby realizing the separation of the protective plate and the threaded rod, thereby facilitating the disassembly of the bolt, thereby making the cylinder head bolt more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the overall exploded structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the installation process structure of the utility model;

[0024] Figure 4 This is a schematic diagram of the retractable structure of the protective plate of the utility model;

[0025] Figure 5 This is a schematic diagram of the expanded structure of the protective plate of the utility model.

[0026] In the figure: 1. Plain rod; 2. Inner twelve-angle end; 3. Threaded rod; 4. Threaded sleeve; 5. Plug-in slot 1; 6. Lap plate 1; 7. Parallel slot 1; 8. Connecting plate; 9. Protective sheet; 10. Plug-in slot 2; 11. Lap plate 2; 12. Parallel slot 2; 13. Adjustment plate; 14. Support rod; 15. Wing plate; 16. Sponge pad. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1-Figure 5The utility model provides a technical solution: an inner twelve-angle cylinder head bolt, comprising a polished rod 1; further comprising: one end of the polished rod 1 is fixedly connected to an inner twelve-angle end portion 2, and the other end of the polished rod 1 is fixedly connected to a threaded rod 3, and one side of the threaded rod 3 is threadedly connected to a threaded sleeve 4, such as Figure 1-Figure 5 As shown, it is convenient to connect with the threaded rod 3 through the threaded sleeve 4, thereby facilitating the connection of the cylinder cover.

[0029] Among them, the other side of the threaded rod 3 is provided with a plug-in groove 5, and a lap plate 6 is provided on one side of the plug-in groove 5, and a parallel groove 7 is provided on one side of the lap plate 6, and the other side of the lap plate 6 is fixedly connected to a connecting plate 8, and one side of the connecting plate 8 is fixedly connected to a protective sheet 9, and the inner side of the protective sheet 9 is fixedly connected to a sponge pad 16; the lap plate 6 is plugged into the threaded rod 3 through the plug-in groove 5; the lap plate 6 and the lap plate 2 11 overlap with both sides of the threaded sleeve 4; the parallel groove 7 is symmetrically opened on both sides of the lap plate 6, and the connecting plate 8 is symmetrically fixedly connected to both sides of the parallel groove 7, as shown Figure 1-Figure 5 As shown, by arranging a connecting plate 8 on one side of the lap plate 6, it is convenient to make room for the position of the threaded sleeve 4, thereby facilitating the rotation of the threaded sleeve 4 on the outside of the threaded rod 3, and by arranging a parallel groove 7, it is convenient to limit the position of the lap plate 6 by a tool, providing support for the rotation of the adjustment plate 13, and by arranging a sponge pad 16 on the inner side of the protective sheet 9, it is convenient to protect the outside of the threaded rod 3, thereby facilitating the protection of the outside of the threaded rod 3, reducing the deformation and oxidation of the threaded rod 3, and thus making the cylinder head bolt more practical.

[0030] Among them, a plug-in groove 2 10 is provided on one side of the threaded sleeve 4, and a lap plate 2 11 is provided on one side of the plug-in groove 2 10, and a parallel groove 2 12 is provided on one side of the lap plate 2 11, and an adjustment plate 13 is provided on the other side of the lap plate 2 11, and a support rod 14 is provided on one side of the adjustment plate 13, and one end of the support rod 14 is fixedly connected to a wing plate 15; the lap plate 2 11 is plugged into the outer side of the threaded rod 3 through the plug-in groove 2 10; the parallel groove 2 12 is symmetrically provided on both sides of the lap plate 2 11, and the adjustment plate 13 is fixedly connected to the side of the lap plate 2 11 close to the parallel groove 2 12; the wing plate 15 is fixedly connected to the side of the support rod 14 away from the lap plate 2 11, as shown Figure 1-Figure 5 As shown, by arranging the adjustment plate 13, the support rod 14 and the wing plate 15 on one side of the lap plate 11, it is convenient to position the support rod 14, and it is convenient to separate the protective sheet 9 from the threaded rod 3 by rotating the support rod 14, thereby facilitating the separation of the bolts, thereby making the cylinder head bolts more practical.

[0031] Working principle: When using the cylinder head bolt, first, pass the threaded rod 3 on the side of the polished rod 1 away from the inner dodecagonal end 2 through the mounting hole of the cylinder head, then connect the lap plate 6 with the outer side of the threaded rod 3 through the insertion groove 5, and make the protective sheet 9 fall on the side away from the inner dodecagonal end 2.

[0032] Secondly, connect the threaded sleeve 4 with the threaded rod 3, and overlap the lap plate 1 6 with one side of the threaded sleeve 4 so that the threaded sleeve 4 falls in the middle of the connecting plate 8, and then use a tool to thread the threaded sleeve 4 and the threaded rod 3 to achieve the threaded connection of the threaded sleeve 4 to drive the lap plate 1 6 to fit with the cylinder head, and connect the lap plate 2 11 to the outside of the threaded rod 3 through the plug-in groove 2 10, so that the adjustment plate 13 on one side of the lap plate 2 11 passes through one side of the protective sheet 9, the wing plate 15 overlaps the other side of the protective sheet 9, and the lap plate 2 11 overlaps the other side of the threaded sleeve 4, the support rod 14 overlaps the side of the protective sheet 9 close to the connecting plate 8, and then the protective sheet 9 is pressed so that the sponge pad 16 on the inside of the protective sheet 9 fits with the outside of the threaded rod 3.

[0033] Finally, the parallel groove 1 7 is clamped by a tool to fix the lap plate 1 6, and then the adjustment plate 13 on one side of the parallel groove 2 12 is rotated to rotate the support rod 14 to separate the protective sheet 9 from the threaded rod 3, and the bolt can be removed.

[0034] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A twelve-point internal cylinder head bolt, comprising a polished rod (1); It is characterized by: Also includes: One end of the polished rod (1) is fixedly connected to an inner twelve-angle end portion (2), and the other end of the polished rod (1) is fixedly connected to a threaded rod (3), and one side of the threaded rod (3) is threadedly connected to a threaded sleeve (4); Wherein, a plug-in slot (5) is provided on the other side of the threaded rod (3), and a lap plate (6) is provided on one side of the plug-in slot (5), and a parallel slot (7) is provided on one side of the lap plate (6), and a connecting plate (8) is fixedly connected to the other side of the lap plate (6), and a protective sheet (9) is fixedly connected to one side of the connecting plate (8), and a sponge pad (16) is fixedly connected to the inner side of the protective sheet (9); Wherein, one side of the threaded sleeve (4) is provided with a second plug-in groove (10), and one side of the second plug-in groove (10) is provided with a second lap plate (11), and one side of the second lap plate (11) is provided with a second parallel groove (12), and the other side of the second lap plate (11) is provided with an adjustment plate (13), and one side of the adjustment plate (13) is provided with a support rod (14), and one end of the support rod (14) is fixedly connected with a wing plate (15).

2. The internal twelve-angle cylinder head bolt according to claim 1, characterized in that: The lap plate 1 (6) is plugged into the threaded rod (3) through the plug-in groove 1 (5).

3. The internal twelve-angle cylinder head bolt according to claim 1, characterized in that: The lap plate 1 (6) and the lap plate 2 (11) are overlapped with both sides of the threaded sleeve (4).

4. The internal twelve-angle cylinder head bolt according to claim 1, characterized in that: The parallel groove one (7) is symmetrically opened on both sides of the overlap plate one (6), and the connecting plate (8) is symmetrically fixedly connected to both sides of the parallel groove one (7).

5. The internal twelve-angle cylinder head bolt according to claim 1, characterized in that: The second lap plate (11) is plugged into the outer side of the threaded rod (3) through the second plug-in groove (10).

6. The twelve-corner internal angle cylinder head bolt according to claim 1, characterized in that: The second parallel groove (12) is symmetrically arranged on both sides of the second lap plate (11), and the adjustment plate (13) is fixedly connected to the side of the second lap plate (11) close to the second parallel groove (12).

7. The internal twelve-angle cylinder head bolt according to claim 1, characterized in that: The wing plate (15) is fixedly connected to the side of the support rod (14) away from the second lap plate (11).

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