Heat-resistant guide positioning bolt for engine

Abstract

The utility model discloses a heatproof guiding positioning bolt for an engine, which comprises a screw rod, the bottom end of the screw rod is provided with a thread groove, the top of the screw rod is provided with a thread through groove, the thread through groove is arranged in the screw rod in a penetrating way, the thread through groove is communicated with a heat dissipation groove, the heat dissipation groove is arranged at the side end of the screw rod, and the heat dissipation groove is communicated with the thread through groove. And the heat dissipation grooves are annularly formed. According to the heat-resistant guiding and positioning bolt for the engine, the threaded through groove formed in the top of the threaded rod facilitates heat transmission, the threaded conveying efficiency is improved through the threaded through groove, the speed of heat transmission from the interior of the engine to the exterior is effectively increased, and the problem that heat conduction is slow due to the fact that cooling liquid flows in the outer cover cylinder is solved; heat is conveyed to the heat dissipation grooves through the threaded through grooves to be dissipated, the heat is evenly distributed through the annularly-formed heat dissipation grooves, the overall heat dissipation efficiency is improved, the overall structure is simple, and the problem that the maintenance cost is increased due to the fact that the structure is complex is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of bolts, specifically a heat-resistant guide positioning bolt for engines. Background Technology

[0002] An engine is a machine that can convert other forms of energy into mechanical energy. The guide positioning bolts of an engine are mainly used to fix the outer casing of the engine. However, the existing engine bolts still have certain defects in use. During use, the engine generates heat during operation, and the heat conduction causes the external guide positioning bolts to loosen, which reduces the service life of the bolts.

[0003] To overcome the above-mentioned defects, prior art 1 (Chinese patent application number 202321252752.8, application date 2023-05-23) provides a heat-resistant high-strength guide positioning bolt for engines, including a nut and a cross-shaped slot, and a rod body. The end of the nut away from the cross-shaped slot is fixedly connected to the rod body. The rod body includes a heat dissipation rod part and a screw part. The outer wall of the heat dissipation rod part is circumferentially arrayed with heat dissipation fins. The heat dissipation rod part and the screw part are integrally formed. By designing multiple sets of heat dissipation fins on the outside of the heat dissipation rod part, coolant can be injected into the cooling cavity in advance through the injection pipe opening. The filled coolant can quickly cool down the heat dissipation fins and the outer cover cylinder. The through holes set on the heat dissipation fins can accelerate the flow of coolant. During the heat conduction process, the overall temperature of the bolt also decreases, thereby avoiding the bolt overheating and expansion. Furthermore, by providing a hollow groove on the bolt and strengthening it with a cross-shaped reinforcing rod, the bolt strength is ensured while saving bolt material.

[0004] While existing technologies have improved the heat dissipation performance of bolts, during operation, the design of heat dissipation fins on the outside of the heat dissipation rod and the injection of coolant into the cooling cavity for rapid cooling require complex processing techniques for the heat dissipation fins and the through holes, increasing production costs. Furthermore, the heat dissipation fins require cleaning and maintenance after long-term use, increasing maintenance costs and complexity. The coolant flows inside the outer cover cylinder, resulting in slow heat conduction and low overall heat dissipation efficiency, thus affecting the service life of the engine.

[0005] To address the aforementioned issues, there is an urgent need for innovative design based on the existing heat-resistant guide positioning bolts for engines. Therefore, we proposed that heat-resistant guide positioning bolts for engines can effectively solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a heat-resistant guide positioning bolt for engines, in order to solve the problems mentioned in the background art. Currently, the market uses heat sinks designed on the outside of the heat sink and coolant injected into the cooling cavity for rapid cooling. However, the heat sinks and through holes require complex processing techniques, which increases production costs. Furthermore, the heat sinks require cleaning and maintenance after long-term use, which increases maintenance costs and complexity. The coolant flows inside the outer cover cylinder, and the heat conduction is slow, resulting in low overall heat dissipation efficiency, which affects the service life of the engine.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a heat-resistant guide positioning bolt for an engine, comprising a screw rod, a threaded groove at the bottom end of the screw rod, a threaded through groove at the top end of the screw rod, the threaded through groove being formed through the inside of the screw rod, the threaded through groove being connected to a heat dissipation groove, the heat dissipation groove being formed at the side end of the screw rod, and the heat dissipation groove being formed in a ring shape.

[0008] Preferably, the top end of the screw is adapted to the snap-fit ​​groove, the snap-fit ​​groove is opened at the bottom of the bolt head, a guide plate is installed at the bottom of the bolt head, and a cross groove is opened at the top end of the bolt head.

[0009] Preferably, a sealing ring is provided at the bottom of the screw, the threaded groove is adapted to the internal thread of the nut, and the nut is sleeved on the outside of the screw.

[0010] Preferably, the screw has a layered assembly inside, the layered assembly including a material layer installed inside the screw.

[0011] Preferably, a reinforcing layer is provided on the outside of the material layer, and a coating layer is provided on the outside of the reinforcing layer.

[0012] Preferably, the bolt head has a storage groove on its side, and a snap-fit ​​assembly is provided inside the storage groove. The snap-fit ​​assembly includes a limiting plate installed inside the storage groove.

[0013] Preferably, a movable rod is connected through the limiting plate, a movable plate is installed at one end of the movable rod, and a locking block is provided at the other end of the movable rod, the locking block being adapted to the locking slot.

[0014] Preferably, the slot is formed on the outside of the screw and located on the upper part of the screw, and a spring is sleeved on the outside of the moving rod.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: The heat-resistant guide positioning bolt of this engine has a threaded groove at the top of the screw to facilitate heat transfer, and the threaded groove increases the thread conveying efficiency, effectively improving the speed of heat transfer from the inside of the engine to the outside, reducing the problem of slow heat conduction caused by the flow of coolant inside the outer cover cylinder. Heat is transported to the heat dissipation slot through the threaded groove, and the annular heat dissipation slot ensures uniform heat distribution, improving the overall heat dissipation efficiency. The overall structure is simple, reducing the problem of increased maintenance costs caused by complex structures. The specific details are as follows:

[0016] (1) The threaded groove at the top of the screw facilitates heat transfer, effectively increasing the speed of heat transfer from the inside of the engine to the outside, reducing the problem of slow heat conduction caused by the flow of coolant inside the outer cover cylinder, and the annular heat dissipation groove makes the heat distribution uniform and improves the overall heat dissipation efficiency.

[0017] (2) The bolt is installed and removed by the cross groove at the top of the bolt head, which reduces the time and labor cost required for maintenance and repair. The bolt head and bolt are easy to use after being removed, which reduces the corrosion and rust phenomenon that occurs after the bolt head is exposed to the outside for a long time, and facilitates later maintenance.

[0018] (3) The material layer of the screw is made of high temperature resistant alloy material, which can effectively disperse heat. The reinforcing layer on the outside of the material layer improves the strength of the screw and increases the service life of the screw. The coating layer on the outside of the reinforcing layer forms a protective film on the surface of the screw to prevent the screw from oxidizing and corroding.

[0019] (4) The storage groove opened on the side of the bolt head facilitates the stable installation of the limiting plate. Moving the moving plate outward causes the moving plate to drive the moving rod on the side to move inside the limiting plate, so that the locking block at the end of the moving rod moves out of the locking groove at the top of the screw, making it convenient to disassemble the screw and the bolt head.

[0020] (5) The moving rod moves by spring rebound, so that the locking block at the end of the moving rod is locked into the slot at the top of the screw. The detachable connection structure design not only ensures the firmness of the connection between the screw and the bolt head, but also provides great convenience when maintenance is needed, thus improving maintenance efficiency. Attached Figure Description

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

[0022] Figure 2 This is a schematic diagram of the cross-sectional structure of the screw of this utility model;

[0023] Figure 3 This is a schematic diagram of the screw hierarchy structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the screw layer cross-sectional structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the overall disassembled structure of this utility model;

[0026] Figure 6 This is a top view of the overall disassembled structure of this utility model;

[0027] Figure 7 This is a cross-sectional view of the bolt head structure of this utility model.

[0028] In the diagram: 1. Screw; 2. Threaded groove; 3. Threaded through groove; 4. Heat dissipation groove; 5. Guide plate; 6. Bolt head; 7. Snap-fit ​​groove; 8. Cross groove; 9. Sealing ring; 10. Nut; 11. Material layer; 12. Reinforcing layer; 13. Coating layer; 14. Storage groove; 15. Limiting plate; 16. Moving rod; 17. Moving plate; 18. Locking block; 19. Locking groove; 20. Spring. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1: In this example, the threaded groove 3 increases the thread conveying efficiency, effectively improving the speed at which heat is transferred from the engine interior to the exterior, and reducing the problem of slow heat conduction caused by coolant flow inside the outer cover cylinder. Figures 1-3The technical solution shown includes a screw 1 with a threaded groove 2 at its bottom and a threaded through groove 3 at its top. The threaded through groove 3 extends through the interior of the screw 1 and connects to a heat dissipation groove 4 located on the side of the screw 1 in a ring shape. The threaded groove 2 at the bottom of the screw 1 facilitates threaded connection with the engine housing, simplifying the installation process and effectively enhancing the stability of the connection between the screw 1 and the engine housing. This ensures that the entire device will not loosen due to vibration or other factors during engine operation, thereby guaranteeing the normal operation of the engine and improving the screw's stability. The stability of rod 1 installation is ensured by the threaded groove 3 at the top of the screw 1, which facilitates heat transfer and increases the efficiency of thread delivery. This effectively improves the speed at which heat is transferred from inside the engine to the outside, reducing the problem of slow heat conduction caused by coolant flowing inside the outer cover cylinder. Heat is transferred to the heat dissipation slot 4 through the threaded groove 3 and dissipated. The annular heat dissipation slot 4 ensures uniform heat distribution, which not only improves the overall heat dissipation efficiency but also prevents engine failure due to overheating, extending the engine's service life. The overall structure is simple, reducing the problem of increased maintenance costs caused by complex structures.

[0031] Example 2: In this example, the bolt head 6 is easily disassembled from the screw 1 for convenient use, reducing the corrosion and rust that can occur after the bolt head 6 has been exposed to the outside environment for a long time, and facilitating later maintenance. Specifically, as follows... Figures 3-6As shown, the top of the screw 1 is adapted to the snap-fit ​​groove 7, which is located at the bottom of the bolt head 6. A guide plate 5 is installed at the bottom of the bolt head 6, and a cross groove 8 is provided at the top of the bolt head 6. A sealing ring 9 is provided at the bottom of the screw 1. The thread groove 2 is adapted to the internal thread of the nut 10, and the nut 10 is sleeved on the outside of the screw 1. A layered assembly is provided inside the screw 1. The layered assembly includes a material layer 11 installed inside the screw 1, a reinforcing layer 12 on the outside of the material layer 11, and a coating layer 13 on the outside of the reinforcing layer 12. The bolt head 6 can be quickly connected to the top of the screw 1 through the guide plate 5, so that the snap-fit ​​groove 7 at the top of the bolt head 6 is engaged with the top of the screw 1. This facilitates the installation and removal of the screw 1 through the cross groove 8 at the top of the bolt head 6, improving the convenience of installation and removal of the device and reducing the time and labor costs required for maintenance and repair. After the bolt head 6 is removed from the screw 1, it is easy to access... The improved design reduces corrosion and rust on the bolt head 6 after prolonged exposure to the external environment, facilitating future maintenance. The sealing ring 9 at the bottom of the bolt 1 cooperates with the nut 10, making the bolt 1 installation more stable and enhancing the overall structural integrity. This ensures stable engine operation under various working conditions. The material layer 11 of the bolt 1 is made of high-temperature resistant alloy material, which can effectively dissipate heat. The reinforcing layer 12 on the outside of the material layer 11 increases the strength of the bolt 1, extending its service life. The coating layer 13 on the outside of the reinforcing layer 12 forms a protective film on the surface of the bolt 1, preventing oxidation and corrosion and reducing damage caused by external environmental factors. Overall, the performance of the bolt 1 is comprehensively improved in terms of materials and structure, enabling it to maintain good working condition in complex external environments, reducing the frequency of bolt 1 replacement, and saving maintenance costs.

[0032] Example 3: In this example, the detachable connection structure design not only ensures the firmness of the connection between the screw 1 and the bolt head 6, but also provides great convenience when maintenance is needed, improving maintenance efficiency. Specifically, as follows... Figure 6 and Figure 7As shown, a storage groove 14 is provided on the side of the bolt head 6. A snap-fit ​​assembly is provided inside the storage groove 14. The snap-fit ​​assembly includes a limiting plate 15 installed inside the storage groove 14. A moving rod 16 is connected through the limiting plate 15. A moving plate 17 is installed at one end of the moving rod 16, and a locking block 18 is provided at the other end of the moving rod 16. The locking block 18 is adapted to the locking groove 19, which is located on the outside of the screw 1 and at the upper part of the screw 1. A spring 20 is sleeved on the outside of the moving rod 16. The storage groove 14 on the side of the bolt head 6 facilitates the stable installation of the limiting plate 15. Moving the moving plate 17 outward causes the moving rod 16 on the side to move inside the limiting plate 15, so that the end of the moving rod 16... The locking block 18 is moved out of the slot 19 at the top of the screw 1, making it easy to disassemble the screw 1 and the bolt head 6. When docking is required, the locking groove 7 of the bolt head 6 is locked in the top of the screw 1, and the moving plate 17 is released, so that the moving rod 16 moves by the spring 20, thereby making the locking block 18 at the end of the moving rod 16 lock into the slot 19 at the top of the screw 1, making it easy to dock and install the screw 1 and the bolt head 6. The detachable connection structure design not only ensures the firmness of the connection between the screw 1 and the bolt head 6, but also provides great convenience when maintenance is needed, improves maintenance efficiency, and reduces maintenance difficulty. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A heat-resistant guide positioning bolt for an engine, comprising a threaded rod (1); Its features are, The screw (1) has a threaded groove (2) at the bottom end and a threaded through groove (3) at the top. The threaded through groove (3) is opened through the inside of the screw (1). The threaded through groove (3) is connected to the heat dissipation groove (4). The heat dissipation groove (4) is opened on the side end of the screw (1) and is annular.

2. The heat-resistant guide positioning bolt for an engine according to claim 1, characterized in that: The top of the screw (1) is adapted to the snap-fit ​​groove (7), the snap-fit ​​groove (7) is opened at the bottom of the bolt head (6), the bottom of the bolt head (6) is equipped with a guide plate (5), and the top of the bolt head (6) is provided with a cross groove (8).

3. The heat-resistant guide positioning bolt for an engine according to claim 1, characterized in that: The bottom of the screw (1) is provided with a sealing ring (9), the threaded groove (2) is adapted to the internal thread of the nut (10), and the nut (10) is sleeved on the outside of the screw (1).

4. The heat-resistant guide positioning bolt for an engine according to claim 1, characterized in that: The screw (1) is provided with a hierarchical assembly, which includes a material layer (11) installed inside the screw (1).

5. The heat-resistant guide positioning bolt for an engine according to claim 4, characterized in that: A reinforcing layer (12) is provided on the outside of the material layer (11), and a coating layer (13) is provided on the outside of the reinforcing layer (12).

6. The heat-resistant guide positioning bolt for an engine according to claim 2, characterized in that: The bolt head (6) has a storage groove (14) on its side. The storage groove (14) is equipped with a snap-fit ​​assembly, which includes a limiting plate (15) installed inside the storage groove (14).

7. The heat-resistant guide positioning bolt for an engine according to claim 6, characterized in that: The limiting plate (15) has a moving rod (16) that is connected through it. A moving plate (17) is installed at one end of the moving rod (16), and a locking block (18) is provided at the other end of the moving rod (16). The locking block (18) is adapted to the locking slot (19).

8. The heat-resistant guide positioning bolt for an engine according to claim 7, characterized in that: The slot (19) is opened on the outside of the screw (1) and located on the upper part of the screw (1). A spring (20) is sleeved on the outside of the moving rod (16).

Images