A hardware connection fastener with a buffer structure

Abstract

The present invention relates to the technical field of fasteners, and in particular to a hardware connection fastener with a buffer structure, comprising a bolt nut and a screw, wherein the bottom of the bolt nut is fixedly connected to the screw, the bottom end of the bolt nut is fixedly connected to a gasket, the bottom of the screw is fixedly connected to a rotating plate, the bottom of the rotating plate is fixedly connected to a shape memory alloy, the bottom of the shape memory alloy is fixedly connected to a bottom plate, an anti-loosening mechanism is arranged inside the screw, and a buffer mechanism is arranged inside the screw. The present invention increases the friction between the screw and the screw hole by rotating the bolt nut, using air bags, sleeves and other components, and the anti-slip wire ensures a stable connection. Through buffering and impact resistance, when the electronic product is vibrated, the buffer plate drives related components to offset the impact force by means of a buffer spring, thereby improving the impact resistance. In addition, the movement of the buffer plate drives the top rod to compress the pressing rod, squeezes out lubricating oil to lubricate the screw, reduces wear, and facilitates disassembly.

Description

Technical Field

[0001] The invention relates to the technical field of fasteners, and in particular to a hardware connection fastener with a buffer structure. Background Art

[0002] Fasteners, also known as standard parts in the market, are a general term for a type of mechanical parts used to fasten two or more parts into a whole. They are characterized by a wide variety of specifications, different performances and uses, and a high degree of standardization, serialization, and generalization. In the production, manufacturing and assembly process of large-scale electronic products, hardware connection fasteners play a vital role, and their performance is directly related to the overall quality and stability of electronic products.

[0003] However, large electronic products may vibrate during daily use due to factors such as transportation and placement environment. Ordinary fasteners are prone to thread slippage between the screw and the screw hole under the influence of long-term vibration, resulting in loose connections, which in turn affects the relative positions of the internal components of the electronic products, reducing the reliability and service life of the electronic products. In addition, due to the friction and wear between the threads during long-term use and the lack of effective lubrication measures, when large electronic products need to be repaired, upgraded or parts replaced, the removal of fasteners is often very laborious, which not only increases the cost and time of repair, but may also cause secondary damage to the electronic products due to excessive force during disassembly.

[0004] In view of this, research and improvement are conducted on the existing problems, and a hardware connection fastener with a buffer structure is provided, aiming to solve the problem and improve the practical value through this technology. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings existing in the prior art, and a hardware connection fastener with a buffer structure is proposed. The present invention increases the friction between the screw and the screw hole by rotating the bolt nut and utilizing components such as air bags and sleeves. The anti-slip wire ensures a stable connection. By buffering and resisting impact, when the electronic product is vibrated, the buffer plate drives related components and uses the buffer spring to offset the impact force, thereby improving the impact resistance. In addition, the movement of the buffer plate drives the push rod to compress the pressing rod, squeeze out lubricating oil to lubricate the screw, reduce wear, and facilitate disassembly.

[0006] In order to achieve the above-mentioned object, the present invention adopts the following technical scheme: a hardware connection fastener with a buffer structure, comprising a bolt cap and a screw, the bottom of the bolt cap is fixedly connected to the screw, the bottom end of the bolt cap is fixedly connected to a gasket, the bottom of the screw is fixedly connected to a rotating plate, the bottom of the rotating plate is fixedly connected to a shape memory alloy, the bottom of the shape memory alloy is fixedly connected to a bottom plate, an anti-loosening mechanism is arranged inside the screw, a buffer mechanism is arranged inside the screw, and a lubrication mechanism is arranged inside the bolt cap;

[0007] The anti-loosening mechanism includes an air bag installed at the bottom end of the bottom plate, the top of the air bag is fixedly connected to a sleeve through a connecting tube, a movable plug is slidably arranged inside the sleeve, the top of the movable plug is fixedly connected to a guide rod, a limiting groove is provided on the outer wall of the screw, an extrusion plate is slidably arranged inside the limiting groove, one side of the extrusion plate is fixedly connected to a sliding rod, one side of the sliding rod is fixedly connected to a push plate, the side wall of the guide rod is fixedly connected to a rack, the interior of the screw is rotatably connected to a missing gear through a rotating shaft, one side of the missing gear is fixedly connected to a push rod, a return spring is fixedly installed on the side of the push plate close to the inner wall of the screw, and one end of the return spring is fixedly connected to the inner wall of the screw;

[0008] The buffer mechanism includes a buffer plate sliding inside the bolt cap, a shock absorbing block is installed inside the bolt cap, a movable plate slides inside the shock absorbing block, one side of the buffer plate is rotatably connected to the bottom of the movable plate through a rotating rod, a bolt head is fixedly connected to the top of the buffer plate, a buffer spring A is arranged inside the shock absorbing block, and the top end of the guide rod passes through the outside of the bolt head through a through hole;

[0009] The lubrication mechanism includes an oil storage tank installed in the inner cavity of the bolt nut, the interior of the oil storage tank is provided with oil absorbing cotton, a piston plate is slidably arranged inside the oil storage tank, the top of the piston plate is fixedly connected to a pressing rod, one side of the oil storage tank is fixedly connected to an oil delivery pipe, one end of the oil delivery pipe is fixedly connected to a diversion pipe, the bottom of the buffer plate is fixedly connected to a push rod, the bottom of the push rod is movably connected to the top of the pressing rod, a plurality of groups of oil outlet channels are provided on the outer wall of the screw rod, a plurality of groups of oil drip nozzles are connected to one side of the diversion pipe, and the oil drip nozzles are arranged inside the oil outlet channels.

[0010] Preferably: a gasket is provided on the outer wall fixing sleeve of the screw rod.

[0011] Preferably, one side of the extrusion plate is fixedly connected with a plurality of groups of protrusions.

[0012] Preferably, one end of the buffer spring A is fixedly connected to one side of the movable plate, and the other end of the buffer spring A is fixedly connected to the inner wall of the shock absorbing block.

[0013] Preferably, the bottom end of the buffer plate is fixedly connected to a buffer rod, the bottom end of the buffer rod is fixedly connected to a slide plate, and the bottom end of the slide plate is fixedly connected to multiple groups of buffer springs B.

[0014] Preferably, the shape memory alloy is provided in a plurality of groups, and the plurality of groups of shape memory alloy are distributed in a circular array along the axial direction of the bottom plate, the shape memory alloy is supported by nickel-titanium alloy, and a bearing is installed inside the rotating plate.

[0015] Preferably, an oil inlet hole is opened on the top of the buffer plate, the oil inlet hole is fixedly connected to the oil storage tank through an oil inlet pipe, and a one-way oil filling valve is installed at the connection between the oil inlet hole and the oil inlet pipe.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention screws the screw into the screw hole and then rotates the bolt cap. The bottom plate of the screw rises with the rotation of the cap, squeezing the top airbag. The gas is compressed and pushed into the sleeve to increase its pressure, pushing the movable plug and the guide rod upward, driving the rack to move, driving the missing gear to rotate, and the missing gear drives the push rod to move. The push rod squeezes the push plate to slide in the limit groove, and the push plate drives the extrusion plate to approach the inner wall of the screw hole. The convex points of the extrusion plate are tightly squeezed with it, increasing the friction between the screw and the screw hole, which can avoid slipping or falling off, and ensure the stability of the fixed connection of the mechanical parts.

[0018] 2. When the electronic product is vibrated by external force, the buffer plate of the present invention is first impacted and moves toward the inner cavity of the bolt cap, driving the moving plate to move, so that the buffer spring A is compressed and deformed to generate a reaction force, which is transmitted to the buffer plate through the moving plate and the rotating rod to offset the impact force. At the same time, when the buffer plate moves, the buffer rod at its bottom moves into the screw rod, pushing the slide plate to squeeze the buffer spring B. The buffer spring B generates a reaction thrust, which is transmitted to the buffer plate through the slide plate and the buffer rod to offset the impact force again. In this way, the impact resistance of the fastener can be improved, its service life can be extended, and a stable and reliable connection can be ensured.

[0019] 3. When the buffer mechanism of the present invention works, the buffer plate is moved toward the inner cavity of the bolt nut by the external force, driving the bottom push rod to move downward, compressing the pressing rod, and the pressing rod pushes the piston plate to slide in the oil storage tank, squeezing the oil-absorbing cotton, so that the oil-absorbing cotton squeezes out the lubricating oil in a quantitative manner. The lubricating oil drips from the oil pipe and the diversion pipe to the oil outlet channel on the outer wall of the screw rod through the oil drip nozzle to lubricate the threaded part of the screw rod, which can reduce thread friction and wear, extend the life of the bolt, make the bolt disassembly smoother, and improve the connection performance and convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a hardware connection fastener with a buffer structure proposed by the present invention;

[0021] Figure 2 This is a schematic diagram of a transverse cross-sectional structure of a hardware connection fastener with a buffer structure proposed by the present invention;

[0022] Figure 3 This is a schematic diagram of the enlarged structure of part A of a hardware connection fastener with a buffer structure proposed by the present invention;

[0023] Figure 4 This is a schematic diagram of the enlarged structure of part B of a hardware connection fastener with a buffer structure proposed by the present invention;

[0024] Figure 5 A schematic diagram of the internal structure of a bolt cap of a hardware connection fastener with a buffer structure proposed by the present invention;

[0025] Figure 6 This is a schematic diagram of a top view of a hardware connection fastener with a buffer structure proposed by the present invention;

[0026] Figure 7 This is a schematic diagram of the enlarged structure of the C part of a hardware connection fastener with a buffer structure proposed by the present invention;

[0027] Figure 8 A vertical cross-sectional structural schematic diagram of a hardware connection fastener with a buffer structure proposed by the present invention;

[0028] Fig. 9 This is a schematic diagram of the enlarged structure of the D part of a hardware connection fastener with a buffer structure proposed by the present invention;

[0029] Fig.10 The present invention is a schematic diagram of a cross-sectional structure of a screw portion of a hardware connection fastener with a buffer structure.

[0030] Legend:

[0031] 1. Bolt cap; 2. Screw; 3. Gasket; 4. Rotating plate; 5. Shape memory alloy; 6. Bottom plate; 7. Bearing; 8. Anti-loosening mechanism; 801. Airbag; 802. Sleeve; 803. Movable plug; 804. Guide rod; 805. Limiting groove; 806. Extrusion plate; 807. Sliding rod; 808. Push plate; 809. Rack; 810. Missing gear; 811. Push rod; 812. Reset spring; 9. Buffer mechanism; 901. Buffer plate; 902. Shock absorber; 903. Moving plate ; 904, buffer spring A; 905, rotating rod; 906, buffer rod; 907, slide plate; 908, buffer spring B; 909, bolt head; 10, lubrication mechanism; 1001, oil storage tank; 1002, oil absorbent cotton; 1003, piston plate; 1004, pressing rod; 1005, push rod; 1006, oil pipeline; 1007, diverter pipe; 1008, oil outlet channel; 1009, oil drip nozzle; 1010, oil inlet hole; 1011, oil inlet pipe; 1012, one-way oil filling valve. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. 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 represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] The present invention provides a hardware connection fastener with a buffer structure, comprising a bolt cap 1 and a screw rod 2, the screw rod 2 is fixedly connected to the bottom of the bolt cap 1, a gasket 3 is fixedly connected to the bottom end of the bolt cap 1, a rotating plate 4 is fixedly connected to the bottom of the screw rod 2, a shape memory alloy 5 is fixedly connected to the bottom of the rotating plate 4, a bottom of the shape memory alloy 5 is fixedly connected to a bottom plate 6, an anti-loosening mechanism 8 is arranged inside the screw rod 2, a buffer mechanism 9 is arranged inside the screw rod 2, and a lubrication mechanism 10 is arranged inside the bolt cap 1;

[0034] See also Figures 1 to 4As shown, the anti-loosening mechanism 8 includes an airbag 801 installed at the bottom end of the base plate 6, the top of the airbag 801 is fixedly connected to a sleeve 802 through a connecting tube, a movable plug 803 is slidably provided inside the sleeve 802, a guide rod 804 is fixedly connected to the top of the movable plug 803, a limiting groove 805 is provided on the outer wall of the screw 2, an extrusion plate 806 is slidably provided inside the limiting groove 805, a sliding rod 807 is fixedly connected to one side of the extrusion plate 806, a push plate 808 is fixedly connected to one side of the sliding rod 807, a rack 809 is fixedly connected to the side wall of the guide rod 804, a missing gear 810 is rotatably connected to the inside of the screw 2 through a rotating shaft, a push rod 811 is fixedly connected to one side of the missing gear 810, a return spring 812 is fixedly installed on one side of the push plate 808 close to the inner wall of the screw 2, and one end of the return spring 812 is fixedly connected to the inner wall of the screw 2;

[0035] It should be noted that when the mechanical parts need to be fixed, the screw rod 2 is first screwed into the corresponding screw hole, and then the bolt nut 1 is rotated. At this time, the bottom plate 6 at the bottom of the screw rod 2 will contact the bottom of the screw hole. As the bolt nut 1 continues to rotate, the bottom plate 6 continues to rise, exerting pressure on the airbag 801 at the top. After the airbag 801 is subjected to force, the gas inside it is compressed and pushed into the connected sleeve 802, so that the pressure inside the sleeve 802 increases. Under the action of the increased pressure, the gas in the sleeve 802 pushes the movable plug 803 to move upward. The upward movement of the movable plug 803 drives the guide rod 804 fixedly connected to it to rise synchronously. During the rising process of the guide rod 804, it drives the racks on both sides thereof. 809 moves together, and the movement of rack 809 will drive the missing gear 810 meshing with it to rotate. The rotation of missing gear 810 further drives the push rod 811 on one side to move. During the movement, the push rod 811 will squeeze the push plate 808, causing the push plate 808 to slide in the limiting groove 805 on the outer wall of the screw rod 2. The movement of the push plate 808 will drive the extrusion plate 806 fixedly connected to it to approach the inner wall of the screw hole. The convex points on the extrusion plate 806 are in close contact with the inner wall of the screw hole and produce extrusion, thereby significantly increasing the friction between the screw rod 2 and the screw hole, thereby effectively avoiding the situation where the screw rod 2 slips or falls off in the screw hole under the action of external forces such as vibration, thereby ensuring the stability of the fixed connection of the mechanical parts.

[0036] See also Figures 1 to 5 As shown, the buffer mechanism 9 includes a buffer plate 901 sliding inside the bolt cap 1, a damping block 902 is installed inside the bolt cap 1, a movable plate 903 slides inside the damping block 902, one side of the buffer plate 901 is rotatably connected to the bottom of the movable plate 903 through a rotating rod 905, a bolt head 909 is fixedly connected to the top of the buffer plate 901, a buffer spring A904 is arranged inside the damping block 902, and the top end of the guide rod 804 passes through the outside of the bolt head 909 through a through hole;

[0037] It should be noted that when the electronic product is vibrated by external factors, the buffer plate 901 will be impacted first. Under the action of the impact force, the buffer plate 901 moves toward the inner cavity of the bolt cap 1, and then drives the moving plate 903, which is rotatably connected to it through the rotating rod 905, to move together. During the movement, the moving plate 903 will apply pressure to the buffer spring A904 inside the shock absorbing block 902, causing the buffer spring A904 to undergo elastic deformation. During the deformation process, the buffer spring A904 will generate a reaction force in the opposite direction of the impact force. This reaction force is transmitted to the rotating rod 905 through the moving plate 903, and then transmitted back to the buffer plate 901 by the rotating rod 905, thereby effectively offsetting the impact of the buffer plate 901. At the same time, when the buffer plate 901 moves toward the inner cavity, the buffer rod 906 fixed at the bottom thereof will also move toward the inside of the screw 2. The movement of the buffer rod 906 will push the slide plate 907 to squeeze the buffer spring B908 toward the inside of the screw 2. After being squeezed, the multiple buffer springs B908 will also generate a reaction thrust. Under the action of the reaction thrust, the slide plate 907 transmits the thrust to the buffer rod 906, and the buffer rod 906 transmits the thrust to the buffer plate 901, further offsetting the impact force received by the buffer plate 901, significantly improving the impact resistance of the entire fastener, thereby extending the service life of the fastener in various complex working environments and ensuring the stability and reliability of the connection;

[0038] In addition, when vibration occurs, the working effect of the buffer mechanism 9 can be evaluated by observing the vibration amplitude of the buffer plate 901 on the surface of the guide rod 804. The smaller the vibration amplitude of the buffer plate 901 on the surface of the guide rod 804, the better the vibration reduction effect of the buffer mechanism 9.

[0039] See also Figures 8 to 10 As shown, the lubrication mechanism 10 includes an oil storage tank 1001 installed in the inner cavity of the bolt nut 1, and an oil-absorbing cotton 1002 is arranged inside the oil storage tank 1001. A piston plate 1003 is slid inside the oil storage tank 1001, and a pressing rod 1004 is fixedly connected to the top of the piston plate 1003. One side of the oil storage tank 1001 is fixedly connected to an oil delivery pipe 1006, and one end of the oil delivery pipe 1006 is fixedly connected to a diversion pipe 1007, and the bottom of the buffer plate 901 is fixedly connected to a push rod 1005, and the bottom of the push rod 1005 is movably connected to the top of the pressing rod 1004, and a plurality of groups of oil outlet channels 1008 are opened on the outer wall of the screw 2, and a plurality of groups of oil drip nozzles 1009 are connected to one side of the diversion pipe 1007, and the oil drip nozzles 1009 are arranged inside the oil outlet channels 1008.

[0040] It should be noted that when the buffer mechanism 9 is working, the buffer plate 901 will be driven to move toward the inner cavity of the bolt cap 1 under the action of external force, and the push rod 1005 at the bottom thereof will be driven to move downward synchronously. The downward movement of the push rod 1005 will press the pressing rod 1004, causing the pressing rod 1004 to move downward in the oil storage tank 1001. The movement of the pressing rod 1004 will drive the piston plate 1003 to slide inside the oil storage tank 1001. The sliding of the piston plate 1003 will exert pressure on the oil-absorbing cotton 1002 in the oil storage tank 1001. Under the action of pressure, the oil-absorbing cotton 1002 is squeezed to squeeze out the absorbed lubricating oil quantitatively, and the squeezed lubricating oil is transported to the shunt pipe 1007 through the oil pipe 1006, and then accurately drips into the oil outlet channel 1008 on the outer wall of the screw 2 through the oil drip nozzle 1009 on one side of the shunt pipe 1007, thereby effectively lubricating the threaded part of the screw 2, thereby significantly reducing the friction between the threads, reducing the wear caused by friction, effectively extending the service life of the bolt, and making the bolt smoother during the subsequent disassembly process, thereby improving the connection performance and ease of use of the bolt.

[0041] See also Figure 1 As shown, the outer wall fixing sleeve of the screw rod 2 is provided with a gasket 3, which increases the contact area and friction between the screw rod 2 and the connecting component. During the tightening process, the gasket 3 can effectively prevent the screw rod 2 from loosening when subjected to external force or vibration, thereby improving the stability and reliability of the connection.

[0042] See also Figure 4 As shown, one side of the extrusion plate 806 is fixedly connected with a plurality of groups of protrusions, and the friction between the screw rod 2 and the inner wall of the screw hole is increased by the plurality of groups of protrusions.

[0043] See also Figure 5 As shown, one end of the buffer spring A904 is fixedly connected to one side of the movable plate 903, and the other end of the buffer spring A904 is fixedly connected to the inner wall of the shock absorbing block 902. When the buffer plate 901 is impacted by an external force, the buffer plate 901 will move inward and compress the buffer spring A904. The buffer spring A904 absorbs the impact energy through elastic deformation, reduces the impact force on the connecting part, and thus protects the connecting part from damage.

[0044] See also Figures 2 to 4As shown, the bottom end of the buffer plate 901 is fixedly connected to a buffer rod 906, the bottom end of the buffer rod 906 is fixedly connected to a slide plate 907, the bottom end of the slide plate 907 is fixedly connected to multiple groups of buffer springs B908, and the buffer plate 901 is connected to multiple groups of buffer springs B908 through the buffer rod 906 and the slide plate 907, forming a multi-stage buffer structure. When the buffer plate 901 is impacted by an external force, the buffer rod 906 and the slide plate 907 will transfer the impact force to the buffer spring B908, and the buffer spring B908 absorbs the impact energy through elastic deformation, reducing the impact force on the connecting member, thereby protecting the connecting member from damage.

[0045] See also Figures 1 to 3 As shown, multiple groups of shape memory alloys 5 are provided, and the multiple groups of shape memory alloys 5 are distributed in a circular array along the axial direction of the bottom plate 6. The shape memory alloy 5 is supported by nickel-titanium alloy, and a bearing 7 is installed inside the rotating plate 4. In addition, in the initial installation state, the shape memory alloy 5 is in the austenite phase and has a stable shape and size. At this time, the shape memory alloy 5 is fixedly connected to the screw 2 through the rotating plate 4, and the bottom plate 6 is in contact with the bottom of the screw hole. When the screw 2 is screwed into the screw hole and subjected to external force, the bottom plate 6 will move upward and squeeze the shape memory alloy 5. At this time, the shape memory alloy 5 changes from the austenite phase to the martensite phase and deforms. This deformation is reversible because the shape memory alloy 5 has the characteristics of martensite phase transformation. When the shape memory alloy 5 is subjected to a large deformation, it can still restore to its original state through the superelastic effect. This superelastic effect enables the shape memory alloy 5 to absorb and dissipate part of the energy after being deformed by external force, thereby reducing the impact force on the connecting piece and extending the service life of the fastener.

[0046] See also Fig. 9 As shown, an oil inlet hole 1010 is opened on the top of the buffer plate 901, and the oil inlet hole 1010 and the oil storage tank 1001 are fixedly connected through an oil inlet pipe 1011. A one-way oil filling valve 1012 is installed at the connection between the oil inlet hole 1010 and the oil inlet pipe 1011. The one-way oil filling valve 1012 can automatically control the flow direction of the oil to prevent the oil from flowing back. When the oil in the oil-absorbing cotton 1002 is reduced, lubricating oil can be supplemented into the oil storage tank 1001 through the oil inlet hole 1010 to ensure the continuity of the lubrication effect.

[0047] Working principle: When it is necessary to fix the mechanical parts, first screw the screw 2 into the corresponding screw hole, and then rotate the bolt nut 1. At this time, the bottom plate 6 at the bottom of the screw 2 will contact the bottom of the screw hole. As the bolt nut 1 continues to rotate, the bottom plate 6 continues to rise, exerting pressure on the air bag 801 at the top. After the air bag 801 is stressed, the gas inside it is compressed and pushed into the connected sleeve 802, so that the pressure inside the sleeve 802 increases. Under the action of the increased pressure, the gas in the sleeve 802 pushes the movable plug 803 to move upward. The upward movement of the movable plug 803 drives the guide rod 804 fixedly connected to it to rise synchronously. During the rising process of the guide rod 804, it drives the racks 8 on both sides thereof. 09 moves together, the movement of the rack 809 will drive the missing gear 810 meshing with it to rotate, and the rotation of the missing gear 810 will further drive the push rod 811 on one side thereof to move, and the push rod 811 will squeeze the push plate 808 during the movement, so that the push plate 808 slides in the limiting groove 805 on the outer wall of the screw rod 2, and the movement of the push plate 808 will drive the extrusion plate 806 fixedly connected thereto to approach the inner wall of the screw hole, and the convex point on the extrusion plate 806 will be in close contact with the inner wall of the screw hole and produce extrusion, thereby significantly increasing the friction between the screw rod 2 and the screw hole, thereby effectively avoiding the situation that the screw rod 2 slips or falls off in the screw hole under the action of external forces such as vibration, thereby ensuring the stability of the fixed connection of the mechanical parts;

[0048] When the electronic product is vibrated by external force, the buffer plate 901 will be impacted first. Under the action of the impact force, the buffer plate 901 moves toward the inner cavity of the bolt cap 1, and then drives the moving plate 903 connected to it by the rotating rod 905 to move together. During the movement, the moving plate 903 applies pressure to the buffer spring A904 inside the shock absorbing block 902, causing the buffer spring A904 to undergo elastic deformation. During the deformation process, the buffer spring A904 will generate a reaction force in the opposite direction of the impact force. This reaction force is transmitted to the rotating rod 905 through the moving plate 903, and then transmitted back to the buffer plate 901 by the rotating rod 905, thereby effectively offsetting the impact on the buffer plate 901. At the same time, when the buffer plate 901 moves toward the inner cavity, the buffer rod 906 fixed at the bottom thereof will also move toward the inside of the screw rod 2. The movement of the buffer rod 906 will push the slide plate 907 to squeeze the buffer spring B908 toward the inside of the screw rod 2. After being squeezed, the multiple buffer springs B908 will also generate a reaction thrust. Under the action of the reaction thrust, the slide plate 907 transmits the thrust to the buffer rod 906, and the buffer rod 906 transmits the thrust to the buffer plate 901, further offsetting the impact force received by the buffer plate 901, significantly improving the impact resistance of the entire fastener, thereby extending the service life of the fastener in various complex working environments and ensuring the stability and reliability of the connection;

[0049] When the buffer mechanism 9 is working, the buffer plate 901 moves toward the inner cavity of the bolt nut 1 under the action of external force, and the push rod 1005 at the bottom thereof will be driven to move downward synchronously. The downward movement of the push rod 1005 will press the pressing rod 1004, so that the pressing rod 1004 moves downward in the oil storage tank 1001. The movement of the pressing rod 1004 drives the piston plate 1003 to slide inside the oil storage tank 1001. The sliding of the piston plate 1003 will exert pressure on the oil absorbent cotton 1002 in the oil storage tank 1001. Under the action of pressure, the oil absorbent cotton 1002 The lubricating oil absorbed by the bolt is squeezed out quantitatively, and the squeezed lubricating oil is transported to the shunt pipe 1007 through the oil pipe 1006, and then accurately drips into the oil outlet channel 1008 on the outer wall of the screw 2 through the oil drip nozzle 1009 on one side of the shunt pipe 1007, thereby effectively lubricating the threaded part of the screw 2, which can significantly reduce the friction between the threads, reduce the wear caused by friction, effectively extend the service life of the bolt, and make the bolt smoother in the subsequent disassembly process, thereby improving the connection performance and ease of use of the bolt.

[0050] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to 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 protection scope of the present invention.

Claims

1. A hardware fastener with a buffer structure, comprising a bolt cap (1) and a screw rod (2), characterized in that: The bottom of the bolt cap (1) is fixedly connected to a screw rod (2), the bottom end of the bolt cap (1) is fixedly connected to a gasket (3), the bottom of the screw rod (2) is fixedly connected to a rotating plate (4), the bottom of the rotating plate (4) is fixedly connected to a shape memory alloy (5), the bottom of the shape memory alloy (5) is fixedly connected to a bottom plate (6), an anti-loosening mechanism (8) is provided inside the screw rod (2), a buffer mechanism (9) is provided inside the screw rod (2), and a lubrication mechanism (10) is provided inside the bolt cap (1); The anti-loosening mechanism (8) comprises an airbag (801) mounted at the bottom end of the base plate (6); the top of the airbag (801) is fixedly connected to a sleeve (802) via a connecting tube; a movable plug (803) is slidably disposed inside the sleeve (802); the top of the movable plug (803) is fixedly connected to a guide rod (804); a limiting groove (805) is provided on the outer wall of the screw rod (2); an extrusion plate (806) is slidably disposed inside the limiting groove (805); one side of the extrusion plate (806) is fixedly connected to a sliding Rod (807), one side of the slide rod (807) is fixedly connected to a push plate (808), the side wall of the guide rod (804) is fixedly connected to a rack (809), the interior of the screw rod (2) is rotatably connected to a missing gear (810) via a rotating shaft, one side of the missing gear (810) is fixedly connected to a push rod (811), and a return spring (812) is fixedly installed on one side of the push plate (808) close to the inner wall of the screw rod (2), and one end of the return spring (812) is fixedly connected to the inner wall of the screw rod (2); The buffer mechanism (9) comprises a buffer plate (901) sliding inside the bolt cap (1), a damping block (902) being installed inside the bolt cap (1), a movable plate (903) sliding inside the damping block (902), one side of the buffer plate (901) being rotatably connected to the bottom of the movable plate (903) via a rotating rod (905), a bolt head (909) being fixedly connected to the top of the buffer plate (901), a buffer spring A (904) being arranged inside the damping block (902), and a top end of the guide rod (804) passing through a through hole and out of the outside of the bolt head (909); The lubrication mechanism (10) comprises an oil storage tank (1001) installed in the inner cavity of the bolt nut (1), an oil absorbing cotton (1002) is arranged inside the oil storage tank (1001), a piston plate (1003) is slidably arranged inside the oil storage tank (1001), a pressing rod (1004) is fixedly connected to the top of the piston plate (1003), an oil delivery pipe (1006) is fixedly connected to one side of the oil storage tank (1001), and the oil delivery pipe (1006) is One end is fixedly connected to a shunt pipe (1007), the bottom of the buffer plate (901) is fixedly connected to a push rod (1005), the bottom of the push rod (1005) is movably connected to the top of the pressing rod (1004), the outer wall of the screw rod (2) is provided with multiple groups of oil outlet channels (1008), one side of the shunt pipe (1007) is connected to multiple groups of oil drip nozzles (1009), and the oil drip nozzles (1009) are arranged inside the oil outlet channels (1008).

2. The hardware fastener with a buffer structure according to claim 1, characterized in that: A gasket (3) is provided on the outer wall fixing sleeve of the screw rod (2).

3. The hardware fastener with a buffer structure according to claim 1, characterized in that: One side of the extrusion plate (806) is fixedly connected with a plurality of groups of protrusions.

4. The hardware fastener with a buffer structure according to claim 1, characterized in that: One end of the buffer spring A (904) is fixedly connected to one side of the movable plate (903), and the other end of the buffer spring A (904) is fixedly connected to the inner wall of the shock absorbing block (902).

5. The hardware fastener with a buffer structure according to claim 1, characterized in that: The bottom end of the buffer plate (901) is fixedly connected to a buffer rod (906), the bottom end of the buffer rod (906) is fixedly connected to a slide plate (907), and the bottom end of the slide plate (907) is fixedly connected to a plurality of groups of buffer springs B (908).

6. The hardware fastener with a buffer structure according to claim 1, characterized in that: The shape memory alloy (5) is provided in a plurality of groups, and the plurality of groups of shape memory alloy (5) are distributed in a circular array along the axial direction of the bottom plate (6); the shape memory alloy (5) is supported by a nickel-titanium alloy, and a bearing (7) is installed inside the rotating plate (4).

7. The hardware fastener with a buffer structure according to claim 1, characterized in that: An oil inlet hole (1010) is provided on the top of the buffer plate (901), and the oil inlet hole (1010) is fixedly connected to the oil storage tank (1001) via an oil inlet pipe (1011), and a one-way oil injection valve (1012) is installed at the connection between the oil inlet hole (1010) and the oil inlet pipe (1011).

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