Detachable buffer protection cover for stress concentration area of metal component

Abstract

The utility model relates to the technical field of mechanical engineering, in particular to a detachable buffer protection cover for a stress concentration area of a metal component. An auxiliary dismounting assembly is arranged at the bottom of a protection cover base body, the auxiliary dismounting assembly comprises an auxiliary block installed at the bottom of the protection cover base body in an inserted mode, the auxiliary block is used for assisting installation of the protection cover base body, two push rods are inserted at the bottom of the auxiliary block, and a stress concentration area of a metal component is protected through the protection cover base body and a buffer layer; the protective cover base body is disassembled through use of an auxiliary block in the auxiliary disassembling assembly, a second limiting magnetic ring is jacked upwards through an external triggering push rod, the adsorption force between a buffer layer and the protective cover base body is relieved through non-contact mechanical transmission generated by energy storage and release of a connecting spring, and rapid separation of the buffer layer and the protective cover base body is achieved; the buffer layer can be stripped without applying direct external force in the process, so that the risk that the surface of the metal component is scratched is reduced.

Description

Technical Field

[0001] This utility model relates to the field of mechanical engineering technology, and more specifically, to a detachable buffer protective cover for stress concentration areas of metal components. Background Technology

[0002] The detachable buffer protection cover for stress concentration areas of metal components is a modular protective device designed for vulnerable parts. It absorbs external impact or vibration energy through elastic or energy-absorbing materials, reducing local stress peaks. At the same time, it adopts quick disassembly and assembly structures such as buckles, bolts or magnetic connections, so that it can be easily installed, replaced or maintained without damaging the component itself. It also has the functions of extending the fatigue life of components and improving safety. It is suitable for scenarios such as bridges, mechanical equipment or aerospace that require periodic inspection.

[0003] Because traditional rubber-based and other cushioning materials are prone to sticking to metal surfaces under pressure or high temperature conditions, some protective covers have adopted designs such as anti-adhesion coatings. Although these designs can reduce the adhesion between the cushioning layer and the metal components, protective covers located in stress concentration areas of metal components may still inevitably stick to the cushioning material due to factors such as temperature and pressure. This means that external force must be applied when disassembling the protective cover, i.e., the adhered cushioning layer must be forcibly peeled off by means of scraping or other methods. These methods increase the risk of scratching the metal components. Utility Model Content

[0004] This utility model provides a detachable buffer protective cover for stress concentration areas of metal components. The buffer layer is disassembled through the coordinated use of an auxiliary block, push rod, and connecting spring, thereby solving the problems mentioned in the background art.

[0005] The protective cover located in the stress concentration area of ​​the metal component may still inevitably stick to the buffer material due to factors such as temperature and pressure. This means that external force must be applied when disassembling the protective cover, that is, the sticky buffer layer must be forcibly peeled off by means of scraping, which increases the risk of scratching the metal component.

[0006] To achieve the above objectives, a detachable buffer protective cover for stress concentration areas of metal components includes a protective cover base. An installation assembly is provided on the inner side of the protective cover base. The installation assembly includes a first limiting magnetic ring and a second limiting magnetic ring arranged vertically. A buffer layer is engaged between the first and second limiting magnetic rings. An auxiliary disassembly assembly is provided at the bottom of the protective cover base. The auxiliary disassembly assembly includes an auxiliary block inserted and installed at the bottom of the protective cover base. The auxiliary block assists in the installation of the protective cover base. Two push rods are inserted at the bottom of the auxiliary block, extending through the auxiliary block to directly below the second limiting magnetic ring. A connecting spring is installed between the upper bottom surface of the push rod and the lower bottom surface of the auxiliary block.

[0007] In the above technical solution, the push rod passes through the auxiliary block and extends to the area directly below the second limiting magnetic ring. The connecting spring stores energy in a pre-stretched state and uses its elastic potential energy to drive the push rod to move. Through non-contact mechanical transmission, the adsorption between the buffer layer and the protective cover substrate is released, realizing the rapid separation of the buffer layer and the protective cover substrate, thereby completing the disassembly of the protective cover substrate.

[0008] Based on this, two magnetic rings are embedded in the inner wall of the protective cover base, and the two magnetic rings correspond to the first limiting magnetic ring and the second limiting magnetic ring respectively. The first limiting magnetic ring and the second limiting magnetic ring are magnetically opposite to the magnetic ring. By setting the magnetic properties of the first limiting magnetic ring and the second limiting magnetic ring to be different from those of the magnetic ring, the first limiting magnetic ring and the second limiting magnetic ring form a magnetic attraction with the magnetic ring, so that the buffer layer is stably clamped between the first limiting magnetic ring and the second limiting magnetic ring. This design utilizes the non-contact characteristics of the magnetic field to ensure a tight fit between the buffer layer and the protective cover base, and the magnetic attraction can be quickly released by external triggering, reducing the wear caused by mechanical clips when disassembling metal components.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] The stress concentration area of ​​the metal component is protected by the protective cover base and the buffer layer. The protective cover base is disassembled by the auxiliary block in the auxiliary disassembly assembly. The second limit magnetic ring is lifted upward by the external trigger push rod. The non-contact mechanical transmission generated by the energy release of the connecting spring releases the adsorption force between the buffer layer and the protective cover base, realizing the rapid separation of the two. The buffer layer can be peeled off without applying direct external force, thereby reducing the risk of scratches on the surface of the metal component. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is an exploded view of a partial structure of the present invention;

[0013] Figure 3 This is an exploded view of the structure of the auxiliary disassembly component of this utility model;

[0014] Figure 4 This is a bottom view of the structure of the protective cover base of this utility model.

[0015] The meanings of the labels in the diagram are as follows:

[0016] 1. Protective cover base; 11. Buffer layer; 2. Mounting assembly; 21. First limiting magnetic ring; 22. Second limiting magnetic ring; 23. Magnetic suction ring; 3. Auxiliary disassembly assembly; 31. Auxiliary block; 32. Push rod; 33. Connecting spring; 34. Positioning pin; 35. Tapered hole. Detailed Implementation

[0017] 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.

[0018] Currently, protective covers located in stress concentration zones of metal components may inevitably experience adhesion of the buffer material due to factors such as temperature and pressure. This necessitates the application of external force during disassembly, such as forcibly peeling off the adhered buffer layer 11 by scraping or other methods. These methods increase the risk of scratching the metal components. This utility model provides a detachable buffer protective cover for stress concentration zones of metal components. See [link to relevant documentation]. Figure 1 As shown, the protective cover base 1 is included. Specifically, the outer surface of the protective cover base 1 is arranged in a honeycomb pattern to enhance heat dissipation in areas of metal stress concentration. The outer surface of the protective cover base 1 significantly increases the surface area through the densely arranged honeycomb structure, thereby enhancing the heat exchange efficiency with the outside air. In areas of stress concentration in metal components, the local temperature is easily increased due to stress concentration or external load. The honeycomb structure not only utilizes geometric advantages to promote rapid heat diffusion, but also forms natural convection channels through the gaps between units, accelerating heat dissipation, thereby effectively reducing the component temperature and preventing material performance degradation or increased stress concentration due to overheating.

[0019] See Figure 2 As shown, the outer wall of the buffer layer 11 is provided with a PTFE coating to reduce the adhesion between the buffer layer 11 and the protective cover substrate 1. The extremely low surface energy and high lubricity of the PTFE coating reduce the physical adhesion to the inner wall of the protective cover substrate 1. At the same time, the PTFE coating forms an isolation layer through its own properties, blocking direct contact, making it easier to separate the buffer layer 11 from the protective cover substrate 1 during disassembly and reducing disassembly resistance.

[0020] See Figure 3 and Figure 4As shown, the top of the auxiliary block 31 has four positioning pins 34 arranged in a ring array. The bottom of the protective cover base 1 has a conical hole 35 corresponding to the position of the positioning pin 34. In practice, the user can first install the auxiliary block 31 on the non-stress concentration area of ​​the metal component through an interference fit. Then, the protective cover base 1 is inserted into the positioning pin 34 through the conical hole 35. The protective cover base 1 then provides buffer protection for the stress concentration area of ​​the metal component. The four sets of symmetrically distributed positioning pins 34 provide uniform radial support force to prevent the protective cover base 1 from shifting during installation or under force, ensuring a stable connection between the auxiliary disassembly component 3 and the protective cover base 1, and laying the foundation for the accurate execution of subsequent disassembly actions.

[0021] See Figure 3 and Figure 4 As shown, the top of the positioning pin 34 is tapered, and a bushing adapted to the top of the positioning pin 34 is provided in the tapered hole 35. During installation, the tapered top of the positioning pin 34 is precisely inserted into the tapered hole 35 through self-guiding action. Utilizing the tapered surface contact's tapered characteristics, the axial and circumferential positional deviations of the auxiliary block 31 and the protective cover base 1 are automatically corrected, ensuring rapid alignment. During the insertion of the positioning pin 34, the bushing guides the positioning pin 34 to smoothly enter through surface contact, avoiding surface scratches caused by hard friction. At the same time, the elastic deformation characteristics of the bushing can absorb minor impacts during installation, reducing direct contact wear between the positioning pin 34 and the protective cover base 1. In addition, the tapered mating structure reduces the risk of adhesion during disassembly through the tapered surface separation characteristics. The rapid separation of the auxiliary block 31 and the protective cover base 1 not only extends the service life of the components but also improves the disassembly and assembly efficiency.

[0022] Working principle: When replacing the buffer layer 11 after long-term use of the protective cover base 1, the user pulls down the push rod 32. The push rod 32 causes the connecting spring 33 to stretch, thus accumulating elastic potential energy. Then, the push rod 32 is released, and the connecting spring 33 compresses and releases the stored energy. The elastic potential energy drives the push rod 32 to move rapidly along the axial direction of the auxiliary block 31. During the lifting process of the push rod 32, its top end acts directly below the second limiting magnetic ring 22. Through the auxiliary block 31, the vertical thrust is converted into an instantaneous mechanical impact at the contact interface between the buffer layer 11 and the protective cover base 1. This impact force acts directly on the bottom of the second limiting magnetic ring 22. The second limiting magnetic ring 22 drives the buffer layer 11 and the first limiting magnetic ring 21 to move upward together. The buffer layer 11 is pushed out and quickly separates from the protective cover base 1. This process breaks the magnetic attraction between the first limiting magnetic ring 21, the second limiting magnetic ring 22 and the magnetic ring 23 through non-contact mechanical transmission. The user can quickly disassemble and replace the buffer layer 11 without external force, reducing the risk of scratching the metal components. Then, the user can push the protective cover base 1 upward. When the positioning pin 34 and the conical hole 35 are completely disengaged, the protective cover base 1 is removed from the metal components. At this time, the protective cover base 1 and the buffer layer 11 are separated and removed.

[0023] 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 embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the 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 the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A detachable buffer protective cover for stress concentration areas of a metal component, comprising a protective cover base (1), wherein an installation assembly (2) is provided on the inner side of the protective cover base (1), the installation assembly (2) comprising a first limiting magnetic ring (21) and a second limiting magnetic ring (22) arranged vertically, wherein a buffer layer (11) is engaged between the first limiting magnetic ring (21) and the second limiting magnetic ring (22), characterized in that: The bottom of the protective cover base (1) is provided with an auxiliary disassembly assembly (3). The auxiliary disassembly assembly (3) includes an auxiliary block (31) inserted into the bottom of the protective cover base (1). The auxiliary block (31) is used to assist in the installation of the protective cover base (1). Two push rods (32) are inserted into the bottom of the auxiliary block (31), and the two push rods (32) pass through the auxiliary block (31) to the bottom of the second limiting magnetic ring (22). A connecting spring (33) is installed between the upper bottom surface of the push rod (32) and the lower bottom surface of the auxiliary block (31).

2. The detachable buffer protective cover for stress concentration areas of metal components according to claim 1, characterized in that: The outer surface of the protective cover base (1) is honeycomb-shaped to enhance heat dissipation in areas of metal stress concentration.

3. The detachable buffer protective cover for stress concentration areas of metal components according to claim 1, characterized in that: The inner wall of the protective cover base (1) is provided with two magnetic rings (23), and the two magnetic rings (23) correspond to the first limiting magnetic ring (21) and the second limiting magnetic ring (22) respectively. The first limiting magnetic ring (21) and the second limiting magnetic ring (22) are magnetically different from the magnetic rings (23).

4. The detachable buffer protective cover for stress concentration areas of metal components according to claim 1, characterized in that: The outer wall of the buffer layer (11) is provided with a PTFE coating to reduce the adhesion between the buffer layer (11) and the protective cover substrate (1).

5. The detachable buffer protective cover for stress concentration areas of metal components according to claim 1, characterized in that: The top of the auxiliary block (31) has four positioning pins (34) arranged in a ring array, and the bottom of the protective cover base (1) has a conical hole (35) corresponding to the position of the positioning pins (34).

6. The detachable buffer protective cover for stress concentration areas of metal components according to claim 5, characterized in that: The top end of the positioning pin (34) is tapered, and a bushing adapted to the top end of the positioning pin (34) is provided in the tapered hole (35).

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