Polyurethane buffer block

Abstract

The utility model belongs to the technical field of polyurethane buffer blocks, and discloses a polyurethane buffer block which comprises a buffer block body, a buffer bottom plate is fixedly installed on the lower portion of the inner side of the buffer block body, a reinforcing plate is fixedly installed on the top of the buffer bottom plate, an elastic plate is fixedly installed on the top of the reinforcing plate, and the elastic plate is fixedly installed on the lower portion of the buffer bottom plate. A plurality of vertical reinforcing ribs are fixedly mounted on the inner side of the reinforcing plate, and a plurality of transverse reinforcing ribs are fixedly mounted on the inner side of the reinforcing plate; the outermost layer of the wear-resistant polyurethane coating adopts a high-wear-resistant polyurethane coating, and the coating has extremely high wear resistance and weather resistance, can effectively resist corrosion of factors such as friction, scraping and ultraviolet rays in an external environment, and protects an internal structure from being damaged in an automobile chassis suspension system; when a vehicle runs, the buffer block can be in contact with sundries such as stones and silt, the abrasion-resistant polyurethane coating can prevent the sundries from abrading the buffer block, and the service life of the buffer block is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of polyurethane buffer block technology, and in particular to a polyurethane buffer block. Background Technology

[0002] Shock absorbers, as an important damping component, are widely used in various types of vehicles. They effectively reduce and absorb vibrations transmitted from the road surface. Polyurethane buffer blocks, as a crucial component of shock absorbers, directly determine the lifespan of the entire shock absorber. However, existing polyurethane buffer blocks have a relatively short lifespan, failing to meet usage requirements.

[0003] Traditional cushioning materials, such as rubber buffer blocks, are prone to aging and deformation after long-term use, leading to a decline in cushioning performance. While some spring-based cushioning devices have certain advantages in elasticity, they are ineffective in absorbing high-frequency impacts and are relatively complex to install and maintain. Furthermore, some cushioning materials cannot provide sufficient cushioning force when facing large impacts, resulting in damage to equipment or structures. Therefore, developing a high-performance, durable, and adaptable polyurethane buffer block is of significant practical importance; hence, we propose a polyurethane buffer block. Utility Model Content

[0004] The purpose of this invention is to provide a polyurethane buffer block that at least partially solves the existing problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A polyurethane buffer block includes a buffer block body, a buffer base plate fixedly installed on the lower inner side of the buffer block body, a reinforcing plate fixedly installed on the top of the buffer base plate, an elastic plate fixedly installed on the top of the reinforcing plate, a plurality of vertical reinforcing ribs fixedly installed on the inner side of the reinforcing plate, and a plurality of transverse reinforcing ribs fixedly installed on the inner side of the reinforcing plate.

[0007] By adopting the above technical solution, the synergistic effect of the multi-layered materials—the buffer outer layer, the reinforced middle layer, and the elastic inner layer—can efficiently absorb and disperse impact forces of different frequencies and intensities. Whether it is low-frequency vibration or high-frequency impact, it can provide excellent buffering effect, greatly improving the performance of the buffer block. The vertical and horizontal reinforcing ribs give the buffer block strong resistance to wear, pressure, and deformation, significantly extending its service life and reducing maintenance costs.

[0008] As a further improvement to the above solution, an outer buffer layer is provided above the buffer base plate, a middle reinforcing layer is provided above the reinforcing plate, and an inner elastic layer is provided above the elastic plate.

[0009] As a further improvement to the above solution, the outer buffer layer includes a wear-resistant polyurethane coating, a flexible rubber buffer layer, and a microporous polyurethane buffer layer. The flexible rubber buffer layer is disposed on one side of the wear-resistant polyurethane coating, and the microporous polyurethane buffer layer is fixedly installed on one side of the flexible rubber buffer layer.

[0010] As a further improvement to the above solution, the reinforced middle layer includes a high-strength fiber reinforcement layer, a metal mesh support layer, and a rigid polyurethane reinforcement layer. The metal mesh support layer is disposed on one side of the high-strength fiber reinforcement layer, and the rigid polyurethane reinforcement layer is disposed on one side of the metal mesh support layer.

[0011] As a further improvement to the above solution, the elastic inner layer includes a highly elastic polyurethane core layer, a viscoelastic damping layer, and a flexible inner liner layer. The viscoelastic damping layer is disposed on one side of the highly elastic polyurethane core layer, and the flexible inner liner layer is disposed on one side of the viscoelastic damping layer.

[0012] As a further improvement to the above solution, the wear-resistant polyurethane coating is made of polyurethane, the flexible rubber buffer layer is made of rubber, and the microporous polyurethane buffer layer is made of polyurethane.

[0013] By adopting the above technical solution, the outermost layer of the wear-resistant polyurethane coating is a high-wear-resistant polyurethane coating. This coating has extremely high wear resistance and weather resistance, effectively resisting the erosion of external environmental factors such as friction, scratches, and ultraviolet rays, protecting the internal structure from damage. In the automotive chassis suspension system, the buffer block may come into contact with stones, mud, and other debris when the vehicle is in motion. The wear-resistant polyurethane coating can prevent these debris from causing wear on the buffer block and extend its service life. The flexible rubber buffer layer is located inside the wear-resistant polyurethane coating. The flexible rubber material has good flexibility and energy absorption characteristics, and can absorb part of the impact force through its own elastic deformation when the buffer block is impacted. It plays a preliminary buffering role; at the same time, the flexibility of rubber can fill the tiny gaps between the buffer block and the contacting object, improving the uniformity of the buffering effect; in building seismic isolation bearings, the flexible rubber buffer layer can effectively buffer the vibration caused by external forces such as earthquakes; the microporous polyurethane buffer layer has a large number of microporous structures evenly distributed inside; when the microporous polyurethane material is impacted, the air in the micropores will be compressed and expanded, thereby absorbing a large amount of energy and further enhancing the buffering effect; this layer works together with the flexible rubber buffer layer to efficiently cope with impact forces of different frequencies and intensities; in the vibration damping pads of mechanical equipment, the microporous polyurethane buffer layer can effectively reduce the transmission of vibration generated during equipment operation.

[0014] As a further improvement to the above solution, the high-strength fiber reinforcement layer is made of glass fiber, the metal mesh support layer is made of metal mesh, and the rigid polyurethane reinforcement layer is made of polyurethane.

[0015] By adopting the above technical solutions, the high-strength fiber reinforcement layer uses carbon fiber or glass fiber reinforced composite materials. Fiber reinforcement materials are characterized by high strength and low density, providing strong structural support for the buffer block and preventing deformation or breakage under significant impact. For example, in automotive suspension systems, when a vehicle passes over large potholes, the high-strength fiber reinforcement layer ensures the buffer block can withstand enormous pressure without damage. The metal mesh support layer uses a mesh structure made of aluminum alloy or stainless steel. The metal mesh can evenly distribute impact force, transferring it to the entire buffer block structure, further improving the buffer block's compressive strength and stability. Simultaneously, the metal mesh can tightly bond with the upper and lower layers, enhancing the overall structural integrity. In buffer devices for large machinery, the metal mesh support layer effectively improves the buffer block's load-bearing capacity. The rigid polyurethane reinforcement layer uses a high-hardness polyurethane material. This layer further strengthens the structural strength of the buffer block, working together with the high-strength fiber reinforcement layer and the metal mesh support layer to improve the overall rigidity and durability of the buffer block. In the field of protective buffering for industrial equipment, the rigid polyurethane reinforcement layer ensures the buffer block's long-term stable operation under harsh conditions.

[0016] As a further improvement to the above solution, the high-elasticity polyurethane core layer is made of polyurethane, the viscoelastic damping layer is made of rubber, and the flexible inner liner is made of polyurethane foam.

[0017] By adopting the above technical solutions, the high-elasticity polyurethane core layer, as the core component of the buffer block, uses high-elasticity polyurethane material, which has excellent elasticity and resilience, and can quickly return to its original shape after being impacted, continuously providing stable cushioning force. In the cushioning pads of car seats, the high-elasticity polyurethane core layer can effectively improve seat comfort and reduce the impact force on the body of drivers and passengers. The viscoelastic damping layer is made of viscoelastic material. The viscoelastic damping layer can convert impact energy into heat energy and dissipate it, further enhancing the shock absorption effect of the buffer block, especially performing well in absorbing high-frequency vibrations. In the shock-absorbing packaging of precision instruments and equipment, the viscoelastic damping layer can effectively protect the instruments from vibration interference and ensure their normal operation. The flexible inner liner layer is the innermost layer made of soft polyurethane foam material. The flexible inner liner layer can fit tightly against the surface of the protected object, avoiding damage to the object's surface caused by friction between the buffer block and the object. At the same time, it can further buffer and disperse impact force, improving the uniformity of the cushioning effect. In the cushioning packaging of electronic products, the flexible inner liner layer can effectively protect the product shell from scratches and collision damage.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] (1) A polyurethane buffer block of this utility model, the outermost layer of the wear-resistant polyurethane coating is a high wear-resistant polyurethane coating. This coating has extremely high wear resistance and weather resistance, and can effectively resist the erosion of factors such as friction, scratch and ultraviolet rays in the external environment, and protect the internal structure from damage. In the automobile chassis suspension system, the buffer block may come into contact with stones, mud and sand and other debris when the vehicle is driving. The wear-resistant polyurethane coating can prevent these debris from causing wear on the buffer block and extend its service life.

[0020] (2) The present invention provides a polyurethane buffer block, wherein the high elastic polyurethane core layer is the core part of the buffer block. It is made of high elastic polyurethane material, which has excellent elasticity and resilience, and can quickly recover its original shape after being impacted, and continuously provide stable buffering force. In the buffer pad of the car seat, the high elastic polyurethane core layer can effectively improve the comfort of the seat and reduce the impact force on the body of the driver and passenger. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a three-dimensional structural diagram of the explosive portion of this utility model;

[0024] Figure 3 This is a partial three-dimensional structural schematic diagram of the present invention;

[0025] Figure 4 This is a partial three-dimensional structural diagram of the present utility model.

[0026] In the diagram: 1. Buffer block body; 2. Buffer base plate; 3. Reinforcing plate; 4. Elastic plate; 5. Vertical reinforcing rib; 6. Horizontal reinforcing rib; 7. Buffer outer layer; 8. Reinforcing middle layer; 9. Elastic inner layer; 10. Wear-resistant polyurethane coating; 11. Flexible rubber buffer layer; 12. Microporous polyurethane buffer layer; 13. High-strength fiber reinforcement layer; 14. Metal mesh support layer; 15. Rigid polyurethane reinforcement layer; 16. High-elasticity polyurethane core layer; 17. Viscoelastic damping layer; 18. Flexible inner lining layer. Detailed Implementation

[0027] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] refer to Figure 1-4 A polyurethane buffer block includes a buffer block body 1, a buffer base plate 2 fixedly installed on the lower inner side of the buffer block body 1, a reinforcing plate 3 fixedly installed on the top of the buffer base plate 2, an elastic plate 4 fixedly installed on the top of the reinforcing plate 3, a plurality of vertical reinforcing ribs 5 fixedly installed on the inner side of the reinforcing plate 3, and a plurality of transverse reinforcing ribs 6 fixedly installed on the inner side of the reinforcing plate 3.

[0029] In this embodiment, a buffer outer layer 7 is provided above the buffer base plate 2, a reinforcing middle layer 8 is provided above the reinforcing plate 3, and an elastic inner layer 9 is provided above the elastic plate 4.

[0030] In this embodiment, the outer buffer layer 7 includes a wear-resistant polyurethane coating 10, a flexible rubber buffer layer 11, and a microporous polyurethane buffer layer 12. The flexible rubber buffer layer 11 is disposed on one side of the wear-resistant polyurethane coating 10, and the microporous polyurethane buffer layer 12 is fixedly installed on one side of the flexible rubber buffer layer 11.

[0031] In this embodiment, the reinforced middle layer 8 includes a high-strength fiber reinforcement layer 13, a metal mesh support layer 14, and a rigid polyurethane reinforcement layer 15. The metal mesh support layer 14 is disposed on one side of the high-strength fiber reinforcement layer 13, and the rigid polyurethane reinforcement layer 15 is disposed on one side of the metal mesh support layer 14.

[0032] In this embodiment, the elastic inner layer 9 includes a highly elastic polyurethane core layer 16, a viscoelastic damping layer 17, and a flexible inner liner layer 18. The viscoelastic damping layer 17 is disposed on one side of the highly elastic polyurethane core layer 16, and the flexible inner liner layer 18 is disposed on one side of the viscoelastic damping layer 17.

[0033] In this embodiment, the wear-resistant polyurethane coating 10 is made of polyurethane, the flexible rubber buffer layer 11 is made of rubber, and the microporous polyurethane buffer layer 12 is made of polyurethane.

[0034] In this embodiment, the high-strength fiber reinforcement layer 13 is made of glass fiber, the metal mesh support layer 14 is made of metal mesh, and the rigid polyurethane reinforcement layer 15 is made of polyurethane.

[0035] In this embodiment, the high-elasticity polyurethane core layer 16 is made of polyurethane, the viscoelastic damping layer 17 is made of rubber, and the flexible inner liner layer 18 is made of polyurethane foam.

[0036] The implementation principle of a polyurethane buffer block in this application embodiment is as follows: The outermost layer of the wear-resistant polyurethane coating 10 is a high-wear-resistant polyurethane coating. This coating has extremely high wear resistance and weather resistance, and can effectively resist the erosion of factors such as friction, scratches and ultraviolet rays in the external environment, protecting the internal structure from damage. In the automobile chassis suspension system, the buffer block may come into contact with stones, mud and other debris when the vehicle is driving. The wear-resistant polyurethane coating can prevent these debris from causing wear to the buffer block and extend its service life. The flexible rubber buffer layer 11 is located inside the wear-resistant polyurethane coating. The flexible rubber material has good flexibility and energy absorption characteristics, and can first deform through its own elasticity when the buffer block is impacted. It absorbs some of the impact force, playing a preliminary buffering role; at the same time, the flexibility of rubber can fill the tiny gaps between the buffer block and the contacting object, improving the uniformity of the buffering effect; in building seismic isolation bearings, the flexible rubber buffer layer can effectively buffer vibrations caused by external forces such as earthquakes; the microporous polyurethane buffer layer 12 has a large number of microporous structures evenly distributed inside; when the microporous polyurethane material is impacted, the air inside the micropores will be compressed and expanded, thereby absorbing a large amount of energy and further enhancing the buffering effect; this layer works in conjunction with the flexible rubber buffer layer to efficiently cope with impact forces of different frequencies and intensities; in the vibration damping pads of mechanical equipment, the microporous polyurethane buffer layer can effectively reduce the transmission of vibrations generated during equipment operation.

[0037] The high-strength fiber reinforcement layer 13 is made of carbon fiber or glass fiber reinforced composite material. Fiber reinforcement materials are characterized by high strength and low density, providing strong structural support for the buffer block and preventing deformation or breakage under significant impact. For example, in automotive suspension systems, when a vehicle passes over large potholes, the high-strength fiber reinforcement layer ensures the buffer block can withstand enormous pressure without damage. The metal mesh support layer 14 uses a mesh structure made of aluminum alloy or stainless steel. The metal mesh can evenly distribute impact force, transferring it to the entire buffer block structure, further improving the buffer block's compressive strength and stability. Simultaneously, the metal mesh can tightly bond with the upper and lower layers, enhancing the overall structural integrity. In buffer devices for large machinery, the metal mesh support layer effectively improves the buffer block's load-bearing capacity. The rigid polyurethane reinforcement layer 15 uses a high-hardness polyurethane material. This layer further strengthens the structural strength of the buffer block, working together with the high-strength fiber reinforcement layer and the metal mesh support layer to improve the overall rigidity and durability of the buffer block. In the field of protective buffering for industrial equipment, the rigid polyurethane reinforcement layer ensures the buffer block's long-term stable operation under harsh conditions.

[0038] The high-elasticity polyurethane core layer 16, as the core component of the buffer block, is made of high-elasticity polyurethane material, possessing excellent elasticity and resilience. It can quickly return to its original shape after being impacted, continuously providing stable cushioning force. In the cushioning pads of car seats, the high-elasticity polyurethane core layer can effectively improve seat comfort and reduce the impact force on the body of drivers and passengers. The viscoelastic damping layer 17 is made of viscoelastic material. The viscoelastic damping layer can convert impact energy into heat energy and dissipate it, further enhancing the shock absorption effect of the buffer block, especially performing well in absorbing high-frequency vibrations. In the shock-absorbing packaging of precision instruments and equipment, the viscoelastic damping layer can effectively protect the instruments from vibration interference and ensure their normal operation. The flexible inner liner layer 18 is the innermost layer made of soft polyurethane foam material. The flexible inner liner layer can fit tightly against the surface of the protected object, avoiding damage to the object's surface caused by friction between the buffer block and the object. At the same time, it can further buffer and disperse impact force, improving the uniformity of the cushioning effect. In the cushioning packaging of electronic products, the flexible inner liner layer can effectively protect the product shell from scratches and collision damage.

[0039] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] The above provides a detailed description of a polyurethane buffer block provided by this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A polyurethane cushioning block characterized by, Include: The buffer block body (1) is fixedly installed below the inner side of the buffer bottom plate (2), the top of the buffer bottom plate (2) is fixedly installed with the reinforcing plate (3), the top of the reinforcing plate (3) is fixedly installed with the elastic plate (4), the inner side of the reinforcing plate (3) is fixedly installed with a plurality of vertical reinforcing ribs (5), and the inner side of the reinforcing plate (3) is fixedly installed with a plurality of horizontal reinforcing ribs (6).

2. A polyurethane cushioning block according to claim 1, wherein, The upper side of the buffer bottom plate (2) is provided with a buffer outer layer (7), the upper side of the reinforcing plate (3) is provided with a reinforcing middle layer (8), and the upper side of the elastic plate (4) is provided with an elastic inner layer (9).

3. A polyurethane cushioning block according to claim 2, wherein, The buffer outer layer (7) comprises a wear-resistant polyurethane coating (10), a flexible rubber buffer layer (11) and a microporous polyurethane buffer layer (12), the flexible rubber buffer layer (11) is arranged on one side of the wear-resistant polyurethane coating (10), and the microporous polyurethane buffer layer (12) is fixedly installed on one side of the flexible rubber buffer layer (11).

4. A polyurethane cushioning bun as defined in claim 2, wherein, The reinforcing middle layer (8) comprises a high-strength fiber reinforced layer (13), a metal grid support layer (14) and a hard polyurethane reinforced layer (15), the metal grid support layer (14) is arranged on one side of the high-strength fiber reinforced layer (13), and the hard polyurethane reinforced layer (15) is arranged on one side of the metal grid support layer (14).

5. A polyurethane cushioning bun as defined in claim 2, wherein, The elastic inner layer (9) comprises a high-elasticity polyurethane core layer (16), a viscoelastic damping layer (17) and a flexible inner lining layer (18), the viscoelastic damping layer (17) is arranged on one side of the high-elasticity polyurethane core layer (16), and the flexible inner lining layer (18) is arranged on one side of the viscoelastic damping layer (17).

6. A polyurethane cushioning bun as defined in claim 3, wherein, The material of the wear-resistant polyurethane coating (10) is polyurethane, the material of the flexible rubber buffer layer (11) is rubber material, and the material of the microporous polyurethane buffer layer (12) is polyurethane.

7. A polyurethane cushioning bun as defined in claim 4, wherein, The material of the high-strength fiber reinforced layer (13) is glass fiber, the material of the metal grid support layer (14) is metal mesh, and the material of the hard polyurethane reinforced layer (15) is polyurethane.

8. A polyurethane cushioning bunl according to claim 5, wherein, The material of the high-elasticity polyurethane core layer (16) is polyurethane, the material of the viscoelastic damping layer (17) is rubber material, and the material of the flexible inner lining layer (18) is polyurethane foam material.

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