High-temperature-resistant check bolt assembly for engine cover

Abstract

The utility model relates to the technical field of bolt assemblies, in particular to a high-temperature-resistant check bolt assembly for an engine cover. According to the technical scheme, the bolt comprises a bolt body, the interior of the bolt body is hollow, and a first guide groove and a second guide groove are formed in the outer wall of the bolt body; the rotating groove is formed in the inner wall of the bolt, a rotating ring is slidably arranged in the rotating groove, the inner wall of the rotating ring is fixedly sleeved with a connecting rod, one end of the connecting rod is fixedly connected with a rotating block, the other end of the connecting rod is fixedly connected with a guide rod, and one end of the guide rod is rotationally connected with the inner wall of the bolt; and the gasket assembly fixedly sleeves the outer wall of the bolt and is used for limiting. The friction force between the bolt and the engine cover can be increased, so that the anti-loosening performance is improved, the risk that the bolt loosens under the vibration and high-temperature environment is reduced, the correct position and the sealing performance of the engine cover can be kept easily through stable bolt connection, and the overall performance and efficiency of an engine are improved.

Description

Technical Field

[0001] This utility model relates to the field of bolt assembly technology, and in particular to a high-temperature resistant anti-loosening bolt assembly for engine covers. Background Technology

[0002] The engine cover is a crucial component of a car engine, located on top of the engine and protecting its internal parts. Engine covers are typically made of metal or plastic, possessing sufficient strength and rigidity to withstand the high temperatures, pressures, and vibrations generated during engine operation. However, existing engine cover bolt assemblies are prone to loosening during operation due to engine vibration and high temperatures, affecting the stability and sealing of the engine cover's connection. Therefore, this invention proposes a high-temperature resistant, anti-loosening bolt assembly for engine covers. Utility Model Content

[0003] The purpose of this invention is to address the problem in the prior art where bolt assemblies for engine covers are prone to loosening during use due to vibration and high temperatures generated by the engine during operation, thus affecting the connection stability and sealing of the engine cover. The invention proposes a high-temperature resistant anti-loosening bolt assembly for engine covers.

[0004] The technical solution of this utility model: a high-temperature resistant anti-loosening bolt assembly for an engine cover, comprising: a bolt, the bolt having a hollow interior, and a first guide groove and a second guide groove formed on the outer wall of the bolt; a rotating groove formed on the inner wall of the bolt, a rotating ring slidably disposed inside the rotating groove, a connecting rod fixedly sleeved on the inner wall of the rotating ring, a rotating block fixedly connected to one end of the connecting rod, a guide rod fixedly connected to the other end of the connecting rod, and one end of the guide rod rotatably connected to the inner wall of the bolt; a washer assembly fixedly sleeved on the outer wall of the bolt for limiting position, a nut provided on one side of the washer assembly, the nut being threadedly sleeved with the bolt; and a limiting assembly movably sleeved on the outer wall of the guide rod for positioning the nut, a first spring provided on one side of the limiting assembly, one end of the first spring being fixedly connected to the inner wall of the bolt, and the other end of the first spring being fixedly connected to the limiting assembly.

[0005] Optionally, the gasket assembly includes a gasket with multiple through grooves on one side. A collar is slidably disposed inside the gasket, and multiple contact blocks are fixedly disposed on the bottom surface of the collar. The contact blocks are slidably connected to the through grooves. A first guide block is fixedly disposed on the inner ring surface of the collar. The first guide block is slidably connected to a first guide groove. A threaded collar is fixedly connected to one end of the first guide block, and the threaded collar is threadedly sleeved with the connecting rod.

[0006] Optionally, the limiting component includes a sliding collar that is movably sleeved on the outer wall of the guide rod. The side wall of the sliding collar is provided with an installation groove. A second spring is provided inside the installation groove. One end of the second spring is fixedly connected to the sliding collar, and the other end of the second spring is fixedly connected to a sliding block. The sliding block is slidably connected to the second guide groove, and one end of the sliding block is fixedly connected to a limiting block.

[0007] Optionally, the nut may have slots on both sides.

[0008] Optionally, the inner wall of the mounting groove is provided with a sliding groove, and a slider is slidably disposed inside the sliding groove, the slider being fixedly connected to the sliding block.

[0009] Optionally, a plurality of locking blocks are fixedly provided on one side of the limiting block.

[0010] In summary, this application includes at least one of the following beneficial technical effects:

[0011] This invention uses a rotating block to drive a connecting rod to rotate, which in turn drives a first guide block to move inside a gasket. The first guide block then drives a threaded collar to slide inside a through groove. This increases the friction between the bolt and the engine cover, thereby improving the anti-loosening performance and reducing the risk of bolt loosening under vibration and high temperature conditions. A stable bolt connection helps maintain the correct position and sealing performance of the engine cover, thereby improving the overall performance and efficiency of the engine.

[0012] Furthermore, this utility model uses a first spring to push the limiting block to slide stably on the outer wall of the guide rod, and uses the mounting groove to push the limiting block to limit the nut. At the same time, the slot and the block are engaged with each other, which makes it less prone to loosening, increases the stability of the nut, and improves the installation stability of the engine cover. Attached Figure Description

[0013] Figure 1 A structural schematic diagram of a high-temperature resistant anti-loosening bolt assembly for an engine cover is provided.

[0014] Figure 2 It is an indication Figure 1 Schematic diagram of the internal cross-sectional structure;

[0015] Figure 3 It is an indication Figure 1 A schematic diagram of the split structure;

[0016] Figure 4 It is an indication Figure 3 A schematic diagram of the internal cross-sectional structure of the middle limiting component.

[0017] Figure label:

[0018] 1. Bolt; 2. First guide groove; 3. Second guide groove; 4. Rotating groove; 5. Rotating ring; 6. Connecting rod; 7. Rotating block; 8. Guide rod;

[0019] 9. Gasket assembly; 91. Gasket; 92. Through groove; 93. Collar; 94. Contact block; 95. First guide block; 96. Threaded collar;

[0020] 10. Nuts;

[0021] 11. Limiting component; 111. Sliding collar; 112. Mounting groove; 113. Second spring; 114. Sliding block; 115. Limiting block;

[0022] 12. First spring; 13. Slot; 14. Slide; 15. Slider; 16. Block. Detailed Implementation

[0023] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0024] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0025] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example

[0029] like Figures 1 to 3 As shown, the high-temperature resistant anti-loosening bolt assembly for engine hoods proposed in this utility model includes: a bolt 1, the bolt 1 having a hollow interior, and a first guide groove 2 and a second guide groove 3 formed on the outer wall of the bolt 1; a rotating groove 4 formed on the inner wall of the bolt 1, with a rotating ring 5 slidably disposed inside the rotating groove 4 to enable stable rotation of the rotating ring 5; a connecting rod 6 fixedly sleeved on the inner wall of the rotating ring 5, with one end of the connecting rod 6 being threaded; a rotating block 7 fixedly connected to one end of the connecting rod 6 to facilitate rotation of the connecting rod 6; and a guide rod 8 fixedly connected to the other end of the connecting rod 6, with one end of the guide rod 8 rotatably connected to the inner wall of the bolt 1. This facilitates the stable rotation of the connecting rod 6; a gasket assembly 9 is fixedly sleeved on the outer wall of the bolt 1 for limiting the position, and a nut 10 is provided on one side of the gasket assembly 9. The nut 10 is threadedly sleeved with the bolt 1, which can stably fix the engine cover; a limiting assembly 11 is movably sleeved on the outer wall of the guide rod 8 for positioning the nut 10, which can prevent the nut 10 from vibrating and loosening. A first spring 12 is provided on one side of the limiting assembly 11. One end of the first spring 12 is fixedly connected to the inner wall of the bolt 1, and the other end of the first spring 12 is fixedly connected to the limiting assembly 11, which facilitates pushing the limiting assembly 11 to press tightly against one side of the nut 10 and stably limit its position.

[0030] like Figure 2 and Figure 3 As shown, the gasket assembly 9 includes a gasket 91, which is fixedly sleeved with the bolt 1. A plurality of through grooves 92 are provided on one side of the gasket 91. A collar 93 is slidably disposed inside the gasket 91. A plurality of contact blocks 94 are fixedly disposed on the bottom surface of the collar 93. The contact blocks 94 are slidably connected to the through grooves 92, which allows the contact blocks 94 to move in a fixed manner. A first guide block 95 is fixedly disposed on the inner ring surface of the collar 93. The first guide block 95 is slidably connected to the first guide groove 2. A threaded collar 96 is fixedly connected to one end of the first guide block 95. The threaded collar 96 is threadedly sleeved with the connecting rod 6, which facilitates the simultaneous movement of the plurality of contact blocks 94.

[0031] like Figure 2 and Figure 4As shown, the limiting component 11 includes a sliding collar 111 that is movably sleeved on the outer wall of the guide rod 8, enabling the sliding collar 111 to move stably. The side wall of the sliding collar 111 is provided with a mounting groove 112, and multiple mounting grooves 112 are provided. A second spring 113 is provided inside the mounting groove 112. One end of the second spring 113 is fixedly connected to the sliding collar 111, and the other end of the second spring 113 is fixedly connected to a sliding block 114, which can push the sliding block 114 to move stably. The sliding block 114 is slidably connected to the second guide groove 3, which can guide the sliding block 114. One end of the sliding block 114 is fixedly connected to a limiting block 115, and one end of the limiting block 115 is set with an inclined surface.

[0032] Furthermore, the nut 10 has slots 13 on both sides, and the slots 13 are located on the inner annular side of the nut 10.

[0033] Secondly, a sliding groove 14 is provided on the inner wall of the mounting groove 112, and a slider 15 is slidably arranged inside the sliding groove 14. The slider 15 is fixedly connected to the sliding block 114 and can guide the sliding block 114 so that the sliding block 114 can move stably.

[0034] Furthermore, a plurality of locking blocks 16 are fixedly provided on one side of the limiting block 115, which can be stably engaged with the locking slot 13 to position the nut 10 and prevent it from becoming loose.

[0035] The working principle of this embodiment is as follows: Rotating the rotating block 7 according to the installation and use tools, the rotating block 7 drives the connecting rod 6 to rotate, and the connecting rod 6 drives the rotating ring 5 to rotate in the rotating groove 4. At the same time, the connecting rod 6 is threadedly engaged with the threaded collar 96, causing the threaded collar 96 to move. The threaded collar 96 drives the collar 93 to move inside the gasket 91 through the first guide block 95. The collar 93 drives the contact block 94 to slide in the through groove 92, so that the contact block 94 extends out from inside the gasket 91. This can increase the friction between the bolt and the engine cover, thereby improving the anti-loosening performance and reducing the risk of bolt loosening under vibration and high temperature environments. The stable bolt connection helps to maintain the correct position and sealing performance of the engine cover, thereby improving the overall performance and efficiency of the engine.

[0036] Then, the bolt 1 is passed through the engine cover and the frame through hole. During the process of passing through the through hole, the limiting block 115 is limited by the through hole, causing the limiting block 115 to drive the sliding block 114 to move into the mounting groove 112. The sliding block 114 pushes the second spring 113 to contract.

[0037] After passing through the through hole, the limiting block 115 is pushed to move the sliding block 114 to the other end of the second guide groove 3. The sliding block 114 drives the sliding collar 111 to push the first spring 12 to retract. Then, the nut 10 is fitted onto one end of the bolt 1 and rotated so that it rotates to the other side of the limiting block 115 and is tightly attached to the engine cover. After that, the limiting block 115 is released. The limiting block 115 pushes the sliding collar 111 to slide on the outer wall of the guide rod 8 by the elastic force of the first spring 12. The sliding collar 111 drives the limiting block 115 to be tightly attached to one side of the nut 10 by the sliding block 114, so that the locking block 16 on one side of the limiting block 115 and the locking groove 13 on the side of the nut 10 are engaged with each other, thereby limiting the nut 10 and preventing it from loosening. This increases the stability of the nut 10 and improves the installation stability of the engine cover.

[0038] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A high-temperature resistant anti-loosening bolt assembly for an engine cover, characterized in that, include: Bolt (1), the interior of the bolt (1) is hollow, and the outer wall of the bolt (1) is provided with a first guide groove (2) and a second guide groove (3); A rotating groove (4) is formed on the inner wall of the bolt (1). A rotating ring (5) is slidably arranged inside the rotating groove (4). A connecting rod (6) is fixedly sleeved on the inner wall of the rotating ring (5). A rotating block (7) is fixedly connected to one end of the connecting rod (6). A guide rod (8) is fixedly connected to the other end of the connecting rod (6). One end of the guide rod (8) is rotatably connected to the inner wall of the bolt (1). A gasket assembly (9) is fixedly sleeved on the outer wall of the bolt (1) for limiting the position. A nut (10) is provided on one side of the gasket assembly (9), and the nut (10) is threadedly sleeved with the bolt (1). A limiting component (11) is movably sleeved on the outer wall of the guide rod (8) for positioning the nut (10). A first spring (12) is provided on one side of the limiting component (11). One end of the first spring (12) is fixedly connected to the inner wall of the bolt (1), and the other end of the first spring (12) is fixedly connected to the limiting component (11).

2. The high-temperature resistant anti-loosening bolt assembly for engine cover according to claim 1, characterized in that, The gasket assembly (9) includes a gasket (91), a plurality of through grooves (92) are provided on one side of the gasket (91), a collar (93) is slidably disposed inside the gasket (91), a plurality of contact blocks (94) are fixedly disposed on the bottom surface of the collar (93), the contact blocks (94) are slidably connected to the through grooves (92), a first guide block (95) is fixedly disposed on the inner ring surface of the collar (93), the first guide block (95) is slidably connected to the first guide groove (2), a threaded collar (96) is fixedly connected to one end of the first guide block (95), and the threaded collar (96) is threadedly sleeved with the connecting rod (6).

3. The high-temperature resistant anti-loosening bolt assembly for engine cover according to claim 1, characterized in that, The limiting component (11) includes a sliding collar (111) that is movably sleeved on the outer wall of the guide rod (8). The side wall of the sliding collar (111) is provided with an installation groove (112). A second spring (113) is provided inside the installation groove (112). One end of the second spring (113) is fixedly connected to the sliding collar (111), and the other end of the second spring (113) is fixedly connected to a sliding block (114). The sliding block (114) is slidably connected to the second guide groove (3), and one end of the sliding block (114) is fixedly connected to a limiting block (115).

4. The high-temperature resistant anti-loosening bolt assembly for engine cover according to claim 1, characterized in that, The nut (10) has slots (13) on both sides.

5. The high-temperature resistant anti-loosening bolt assembly for engine cover according to claim 3, characterized in that, The inner wall of the mounting groove (112) is provided with a sliding groove (14), and a slider (15) is slidably arranged inside the sliding groove (14). The slider (15) is fixedly connected to the sliding block (114).

6. The high-temperature resistant anti-loosening bolt assembly for an engine cover according to claim 3, characterized in that, Multiple locking blocks (16) are fixedly provided on one side of the limiting block (115).

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