Impact-proof outer wall structure of high-wear-resistant steel barrel

Abstract

The utility model relates to the field of steel drum, and disclose a kind of anti-impact outer wall structure of high wear-resistant steel drum, including steel drum, the surface of steel drum is integrally formed with two groups of annular protrusions one, the surface of steel drum is integrally formed with multiple annular protrusions two between two annular grooves two area, the outside of steel drum is provided with annular rubber sleeve, annular rubber sleeve is internally provided with annular cavity, the inside of annular cavity is provided with internal support framework, the scheme can disperse stress, resist bearing deformation: annular protrusion can the radial pressure of steel drum internal material (especially the pressure of high-density liquid, particulate material) to the two sides of protrusion disperses, avoid pressure concentration in barrel body local part, effectively prevent barrel body swelling, depression -experiment shows, under the same bearing condition, the barrel body deformation amplitude of the structure steel drum can be reduced by more than 60%, greatly improve the structural stability under heavy load scene.

Description

Technical Field

[0001] This utility model relates to the field of steel drums, specifically to an impact-resistant outer wall structure for a high wear-resistant steel drum. Background Technology

[0002] Steel drums are commonly used material storage and transportation containers in the chemical, building materials, food, and pharmaceutical industries. Their core functional requirements focus on three main dimensions: structural strength, impact resistance, and wear resistance. They must withstand the weight pressure of the internal materials (especially liquids and heavy granular materials), cope with external impacts during transportation and handling (such as collisions, drops, and compression), and resist frictional wear from the ground, storage shelves, and other containers over long-term use to ensure service life and prevent material leakage. However, the current external wall structure design of traditional steel drums on the market still has significant technical shortcomings in meeting these core requirements. Specific problems are as follows:

[0003] I. Traditional steel drums have insufficient body strength and are prone to deformation and damage.

[0004] Traditional steel drums typically employ a simple structure of a smooth cylindrical surface and top and bottom caps, with the outer wall material primarily consisting of ordinary cold-rolled steel sheets, lacking an integrated reinforcing structure. This design presents significant drawbacks in the following scenarios:

[0005] Deformation under pressure: When steel drums are loaded with high-density materials (such as metal particles or viscous liquids), the outer wall of the drum needs to withstand continuous radial pressure. The smooth outer wall lacks a stress dispersion structure and is prone to local dents, bulges and other deformations, which can lead to cracking of the drum in severe cases.

[0006] Damage during stacked storage: In the warehousing process, steel drums often need to be stacked in multiple layers to save space. The weight of the upper steel drum directly acts on the outer wall of the lower steel drum. Traditional drums without reinforcement structures cannot evenly distribute the stacking pressure, which can easily lead to drum collapse or deformation of the upper and lower end caps, resulting in a decrease in stacking stability.

[0007] Structural damage from minor impacts: Even minor collisions during loading and unloading (such as accidental contact by forklift forks or scratches from ground protrusions) can easily create dents on the smooth surface of the drum, damaging its structural integrity. Over time, this can significantly reduce the load-bearing capacity of the steel drum.

[0008] II. The impact protection structure is simple, and the cushioning effect is limited.

[0009] To improve their impact resistance, some traditional steel drums use simple protective measures such as "external rubber pads" or "wrapping in woven bags." However, these solutions have inherent flaws and cannot effectively withstand impacts of moderate to high intensity.

[0010] The protective structure is unsupported and prone to failure: The individual rubber pad or woven bag lacks internal rigid support. When it is impacted, it can only rely on the elasticity of its own material for limited cushioning. If the impact force exceeds the deformation limit of the rubber / woven bag, it will break or fall off directly, and the impact force will be completely transferred to the steel drum body, resulting in dents in the drum body and cracks in the weld.

[0011] Impact energy cannot be dispersed: Traditional protective measures can only absorb the impact at a single point and cannot disperse the impact force to the surrounding area. For example, when the side of a steel drum is hit, the impact energy is concentrated at the point of impact, which can easily cause severe deformation of the local drum body or even penetrate the drum wall and cause material leakage.

[0012] Incomplete protection: Simple rubber pads are mostly only attached to the middle or bottom of the steel drum, ignoring the protection of the joint between the upper and lower end caps and the drum body (stress concentration area). This area is most vulnerable to damage during drops and tilting collisions, further reducing the overall impact resistance. To address this, we propose an impact-resistant outer wall structure for a high wear-resistant steel drum. Utility Model Content

[0013] To address the shortcomings of existing technologies, this invention provides an impact-resistant outer wall structure for a high wear-resistant steel barrel, thus solving the aforementioned problems.

[0014] To achieve the above-mentioned objectives, this utility model provides the following technical solution: an impact-resistant outer wall structure for a high wear-resistant steel drum, comprising a steel drum, wherein two sets of annular protrusions are integrally formed on the surface of the steel drum, and multiple sets of annular protrusions are integrally formed in the area between two annular grooves on the surface of the steel drum, an annular rubber sleeve is provided on the outer side of the steel drum, an annular cavity is provided inside the annular rubber sleeve, and an internal support skeleton is provided inside the annular cavity.

[0015] Preferably, the inner wall of the annular rubber sleeve is provided with an annular groove two at the position corresponding to the annular protrusion one. When the annular rubber sleeve is fitted onto the outside of the steel barrel, the annular protrusion one is stuck inside the annular groove two.

[0016] Preferably, the inner wall of the annular rubber sleeve is provided with an annular groove at the position corresponding to the second annular protrusion. When the annular rubber sleeve is fitted onto the outside of the steel barrel, the second annular protrusion is engaged inside the first annular groove.

[0017] Preferably, the internal support frame includes multiple sets of strip plates and inclined plates. The multiple sets of strip plates are staggered vertically at equal intervals inside the annular cavity, corresponding to the inner wall of the annular cavity near the center point and the inner wall of the annular cavity away from the center point. Adjacent strip plates are connected by inclined plates.

[0018] Preferably, a middle support rod is vertically installed on the inner wall of the strip plate on the side away from the center point of the annular cavity and on the inner wall of the strip plate on the side close to the center point of the annular cavity. A fitting block is fixedly installed on one end of the middle support rod corresponding to the inner wall of the annular cavity, and the fitting block is kept in contact with the inner wall of the annular cavity.

[0019] Preferably, both the upper and lower ends of the annular rubber sleeve are integrally formed with side extensions, and the side extensions are kept in close contact with the outer wall of the steel barrel.

[0020] Compared with the prior art, this utility model provides an impact-resistant outer wall structure for a high wear-resistant steel barrel, which has the following beneficial effects:

[0021] I. Significantly enhances the strength of the steel drum body and greatly improves its resistance to deformation.

[0022] By integrally molding two sets of annular protrusions and multiple sets of annular protrusions onto the surface of the steel drum, a composite reinforcement structure of "drum body + annular protrusions" is formed, bringing two core advantages compared to the traditional smooth drum body:

[0023] Dispersing stress and resisting load-bearing deformation: The annular protrusion can disperse the radial pressure of the material inside the steel drum (especially the pressure of high-density liquids and granular materials) to both sides of the protrusion, avoiding pressure concentration in a local area of ​​the drum body and effectively preventing the drum body from bulging and sinking. Experiments show that under the same load conditions, the drum body deformation of this structure can be reduced by more than 60%, which greatly improves the structural stability under heavy load scenarios.

[0024] Enhanced stacking performance and resistance to compression damage: The lateral support formed by the first and second annular protrusions can evenly transfer the weight of the upper steel drums when stacking multiple layers, preventing the lower steel drums from collapsing due to excessive local stress. The number of stacking layers can be increased from the traditional 3-4 layers to 5-6 layers, while reducing drum wear and deformation during the stacking process and improving the utilization rate of storage space.

[0025] II. Constructing a "dual buffer + multi-point dispersion" shock protection system, with significant shock resistance effect.

[0026] This structure, through the synergistic design of "annular rubber sleeve + internal support frame," overcomes the limitations of the traditional steel barrel's "single rubber pad cushioning," forming a highly efficient impact-resistant mechanism.

[0027] Primary buffer: Initial energy absorption by the annular rubber sleeve: When the steel drum is impacted, the outer annular rubber sleeve first absorbs 30%-40% of the impact energy through its own elastic deformation, reducing the impact force directly transmitted to the steel drum body and preventing the impact from directly acting on the drum body after the rubber sleeve breaks.

[0028] Secondary buffer: Internal support frame disperses energy: After the impact force not absorbed by the rubber sleeve is transferred to the internal support frame, the "staggered connection + flexible deformation" structure formed by strip plates + inclined plates + intermediate support rods can disperse the impact force in the circumferential and axial directions of the annular cavity. For example, in the event of a side collision, the impact energy will be transferred from the point of impact to the surrounding 6-8 sets of strip plates through the deformation of the inclined plates, and then further buffered by the slight deformation of the intermediate support rods, achieving "single-point impact, multi-point dispersion". The impact energy dispersion range is more than 5 times larger than that of traditional structures, effectively avoiding severe local deformation of the barrel body.

[0029] Comprehensive protection with no blind spots: The one-piece side extensions of the annular rubber sleeve can fit tightly with the joint between the upper and lower end caps and the body of the steel drum (the weak area of ​​stress concentration in traditional steel drums), filling the "top and bottom protection gap" of traditional protective structures. In the event of a drop or tilting collision, it can reduce the risk of cracking at the joint between the end cap and the body, making the overall impact protection coverage of the steel drum reach 100%.

[0030] III. Improve the wear resistance of the outer wall, extend the service life of the steel drum, and ensure the safety of materials.

[0031] By applying a wear-resistant coating to the outside of the annular rubber sleeve, combined with the wear-resistant properties of the rubber sleeve itself, a dual wear-resistant protection of "rubber sleeve + wear-resistant coating" is formed, solving the problems of traditional steel drums being "easy to rust and easy to peel off the coating".

[0032] High wear resistance and wear resistance: The wear-resistant coating uses high-hardness wear-resistant materials, such as polyurethane modified coating and ceramic particle coating, with a hardness of 4H-5H pencil hardness. Compared with traditional ordinary spray paint coating, the wear resistance is improved by 3-4 times. In frequent rolling transportation, such as forklift towing in the factory area and rolling on the ground, the coating wear rate is reduced by 70%, which can prevent the rubber sleeve surface from being exposed after rapid wear.

[0033] Corrosion protection and barrel protection: The wear-resistant coating and the ring rubber sleeve work together to isolate the steel barrel from the contact between the steel barrel and the external humid air and corrosive media, preventing the steel barrel body from rusting; at the same time, compared with the traditional exposed steel barrel, this structure can extend the rusting cycle of the steel barrel from six months to one year to two to three years, greatly reducing the problem of barrel thickness reduction and strength loss caused by rust.

[0034] Ensuring material safety: The wear-resistant coating has strong adhesion and is not easy to peel off, avoiding the risk of traditional spray paint coatings peeling off and contaminating food and pharmaceutical materials. It can meet the storage and transportation requirements of food-grade and pharmaceutical-grade materials, and broaden the applicable scenarios of steel drums.

[0035] IV. Optimized assembly stability ensures that impact-resistant components are less prone to detachment and provide long-lasting protection.

[0036] The design of "the interlocking of the annular protrusion and the annular groove" solves the defects of traditional steel barrel impact protection components that are "easy to slide and easy to shift".

[0037] Precise positioning and prevention of axial slippage: The annular groove 2 on the inner wall of the annular rubber sleeve is adapted to the annular protrusion 1 on the steel drum, and the annular groove 1 is adapted to the annular protrusion 2. After assembly, a "concave-convex interlocking" structure is formed, which can firmly restrict the sliding of the annular rubber sleeve along the axial direction of the steel drum and in the up and down direction. Even in the scenario of bumpy transportation and tilted placement, the displacement of the rubber sleeve can be controlled within 5mm, which is far lower than the 20-30mm displacement of the traditional sleeve structure.

[0038] Tight fit, preventing circumferential displacement: The concave-convex fit increases the contact area between the annular rubber sleeve and the steel drum. Combined with the tight fit between the side extension and the outer wall of the steel drum, it can prevent the rubber sleeve from rotating circumferentially during rolling transportation, ensuring that the impact-resistant components are always in the preset protective position, avoiding loss of protection in critical areas due to displacement, and ensuring the stability of protection during long-term use. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the structure of this utility model;

[0040] Figure 2 This is a top view of the present invention;

[0041] Figure 3 for Figure 2 AA section view diagram;

[0042] Figure 4 for Figure 3 A magnified view of section B in the diagram;

[0043] Figure 5 for Figure 4 A magnified view of part C in the diagram.

[0044] In the diagram: 1. Steel drum; 2. Annular rubber sleeve; 3. Side extension; 4. Annular protrusion one; 5. Annular protrusion two; 6. Annular groove one; 7. Annular groove two; 8. Annular cavity; 9. Internal support frame; 10. Strip plate; 11. Inclined plate; 12. Intermediate support rod; 13. Adhesive block; 14. Wear-resistant coating. Detailed Implementation

[0045] 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.

[0046] Please see Figure 1-5 An impact-resistant outer wall structure for a high wear-resistant steel drum, the structure of which is as follows:

[0047] Steel Drum 1

[0048] Steel drum 1 is the core load-bearing base of the entire impact-resistant outer wall structure, providing the main space for containing and supporting the materials inside. Its surface is processed into multiple structural components through an integrated molding process, which not only ensures its own basic strength but also provides a structural foundation for the subsequent assembly of impact-resistant and wear-resistant components. It is the main frame of the entire device and determines the overall volume and basic shape of the steel drum.

[0049] Annular rubber sleeve 2

[0050] The annular rubber sleeve 2 is the core impact-resistant component on the outside of the steel drum 1. Made of elastic rubber, it is annular in shape and conforms to the outer wall of the steel drum 1. Internally, it has an annular cavity 8 to accommodate the internal support frame 9. Its main function is to initially absorb the impact energy through the elastic deformation of its own rubber material when the steel drum 1 is subjected to external impact, while simultaneously transferring the remaining impact force to the internal support frame 9 for secondary cushioning. Furthermore, it also provides some protection to the outer wall of the steel drum 1, preventing it from directly rubbing or colliding with hard objects. Its upper and lower ends are integrally formed with side extensions 3, further enhancing the fit and protection range of the steel drum 1.

[0051] Side extension 3

[0052] The side extension 3 is an integrally formed structure at both ends of the annular rubber sleeve 2, also made of rubber, and is an inseparable part of the annular rubber sleeve 2. Its shape matches the outer wall contour of the upper and lower ends of the steel drum 1. After assembly, it maintains a tight fit with the outer wall surface of the steel drum 1. Its main function is to fill the gap between the annular rubber sleeve 2 and the upper and lower ends of the steel drum 1, preventing impurities from entering the interior of the annular rubber sleeve 2. At the same time, it further enhances the impact resistance and protection effect on the upper and lower areas of the steel drum 1, making the protection of the steel drum 1 by the annular rubber sleeve 2 more comprehensive.

[0053] Annular protrusion 4

[0054] The annular protrusion 4 is a ring-shaped structure directly machined onto the surface of the steel drum 1 using an integral molding process. There are two sets in total, and they are integral with the steel drum 1, made of the same material. Its main functions are twofold: first, to structurally enhance the strength of the steel drum 1 by improving the deformation resistance of the outer wall of the steel drum 1 through the protrusion structure, preventing the steel drum 1 from denting when bearing materials or subjected to slight external forces; second, to serve as a positioning and assembly structure, fitting into the annular groove 7 on the inner wall of the annular rubber sleeve 2. When the annular rubber sleeve 2 is fitted onto the outside of the steel drum 1, the annular protrusion 4 can precisely engage inside the annular groove 7, achieving positioning of the annular rubber sleeve 2 on the steel drum 1 and preventing the annular rubber sleeve 2 from sliding axially along the steel drum 1.

[0055] Annular protrusion 25

[0056] The second annular protrusion 5 is also a ring-shaped structure processed onto the surface of the steel drum 1 using an integral molding process. Multiple sets of these protrusions are distributed on the surface of the steel drum 1 between the two corresponding annular grooves 7, forming a single integral unit with the steel drum 1. Its core function is similar to that of the first annular protrusion 4: on the one hand, it further enhances the structural strength of the steel drum 1 body. The distribution of multiple annular protrusions makes the strength of the outer wall of the steel drum 1 more uniform, resulting in better impact resistance and deformation resistance. On the other hand, as an auxiliary positioning structure for the annular rubber sleeve 2, it cooperates with the annular groove 6 on the inner wall of the annular rubber sleeve 2. When the annular rubber sleeve 2 is assembled, the second annular protrusion 5 is engaged within the annular groove 6, further improving the connection stability between the annular rubber sleeve 2 and the steel drum 1, and preventing circumferential or axial displacement of the annular rubber sleeve 2.

[0057] Annular groove 6

[0058] The annular groove 6 is an annular groove formed on the inner wall of the annular rubber sleeve 2. Its number, position, and size are perfectly matched with the annular protrusion 5 on the surface of the steel drum 1. The main function of this groove is to provide a space for the annular protrusion 5. When the annular rubber sleeve 2 is fitted onto the outside of the steel drum 1, the annular protrusion 5 can be embedded in the annular groove 6, forming a concave-convex fit structure. This fit not only enables precise positioning of the annular rubber sleeve 2, but also increases the contact area between the annular rubber sleeve 2 and the steel drum 1, improves the tightness of the connection between the two, ensures that the impact force can be transmitted more stably, and prevents the annular rubber sleeve 2 from shifting on the surface of the steel drum 1.

[0059] Annular groove 27

[0060] Annular groove 2 7 is another set of annular grooves formed on the inner wall of the annular rubber sleeve 2. There are two sets, and their positions and dimensions correspond one-to-one with the annular protrusion 4 on the surface of the steel drum 1. Its function is similar to that of annular groove 6, mainly used to accommodate annular protrusion 4. When the annular rubber sleeve 2 is assembled onto the steel drum 1, annular protrusion 4 is engaged in annular groove 2 7. Together with annular groove 6 and annular protrusion 2 5, it achieves dual positioning of the annular rubber sleeve 2 on the steel drum 1, further improving the assembly stability of the annular rubber sleeve 2, preventing it from sliding or falling off when subjected to impact, and ensuring the effectiveness of the impact-resistant structure.

[0061] Annular cavity 8

[0062] The annular cavity 8 is a hollow annular structure created inside the annular rubber sleeve 2. Its shape matches the overall contour of the annular rubber sleeve 2, and it serves as the mounting carrier for the internal support frame 9. The main function of this cavity is to provide space for the internal support frame 9, allowing it to be embedded within the annular rubber sleeve 2 and form a synergistic impact-resistant structure. Simultaneously, the hollow structure of the annular cavity 8 also provides some space for the deformation of the internal support frame 9 upon impact, ensuring that the internal support frame 9 can properly perform its function of buffering and dispersing impact forces, and preventing a weakening of the buffering effect due to space constraints.

[0063] Internal support frame 9

[0064] The internal support frame 9 is a metal or high-strength plastic skeleton structure installed inside the annular cavity 8, and is the core buffer support component inside the annular rubber sleeve 2. It is annular in shape and consists of multiple sets of strip plates 10, inclined plates 11, intermediate support rods 12, and bonding blocks 13. Its main function is to further disperse and absorb the impact force when the annular rubber sleeve 2 is impacted, through the deformation of its own structure, such as the bending of the inclined plates 11 and the slight deformation of the intermediate support rods 12. This, combined with the elastic deformation of the annular rubber sleeve 2, forms a double buffer, significantly improving the impact resistance of the steel drum 1 and preventing the impact force from being directly transmitted to the steel drum 1 body, thus avoiding damage to the steel drum or the internal materials.

[0065] Strip 10

[0066] The strip plates 10 are the basic components of the internal support frame 9. They are made of metal or high-strength plastic and come in multiple sets. Inside the annular cavity 8, they are staggered vertically at equal intervals, corresponding to the inner wall of the annular cavity 8 "near the center point" and "away from the center point". Their main function is to serve as the load-bearing and connecting structure of the internal support frame 9. On the one hand, they provide the mounting base for the inclined plate 11 and the intermediate support rod 12, forming the overall frame of the skeleton through connection with the inclined plate 11. On the other hand, when subjected to impact, the strip plate 10 on the side away from the center point of the annular cavity 8 will bear the impact force first and transfer the impact force to the inclined plate 11 and the intermediate support rod 12. Through the staggered distribution of multiple sets of strip plates, the impact force can be more evenly distributed to the entire internal support frame 9, avoiding local stress concentration that could lead to frame damage.

[0067] Inclined plate 11

[0068] The inclined plate 11 is a plate-like structure connecting two adjacent sets of strip plates 10. It is integrally formed or fixedly connected to the strip plates 10 and is also made of high-strength material. It is installed at an angle, connecting adjacent strip plates 10 on both sides of the annular cavity 8, near and away from the center point, forming a stable triangular or trapezoidal support structure. Its main function is to absorb and disperse the impact force when the strip plate 10 is subjected to impact through its own bending deformation, transferring the impact force from the stressed strip plate 10 to other adjacent strip plates 10. This achieves multi-point dispersion of the impact force within the internal support frame 9, thereby reducing the stress on individual components and improving the overall buffering effect. It is a key component of the internal support frame 9 for achieving impact dispersion.

[0069] Intermediate support rod 12

[0070] The intermediate support rod 12 is a rod-shaped structure vertically installed on the strip plate 10. One end is vertically fixed to the "mutually close side" of the strip plate 10, that is, the side opposite to the strip plate away from the center point of the annular cavity 8 and the side of the strip plate closer to the center point. The other end is fixedly connected to the bonding block 13. Its material is high-strength metal or engineering plastic, which has a certain toughness and deformation resistance. Its main function is to deform together with the inclined plate 11 when the strip plate 10 is subjected to extrusion pressure, further dispersing the impact force. At the same time, through the connection with the bonding block 13, it ensures that the strip plate 10 maintains stable contact with the inner wall of the annular cavity 8, so that the impact force can be transmitted more smoothly between the internal support frame 9 and the annular rubber sleeve 2, avoiding buffer failure due to the strip plate 10 detaching from the cavity wall, and improving the overall stability and buffer reliability of the internal support frame 9.

[0071] Adhesive Block 13

[0072] The fitting block 13 is a block-shaped structure fixedly installed at one end of the inner wall of the annular cavity 8 corresponding to the intermediate support rod 12. It is typically made of rubber or soft plastic and is adapted to the shape of the inner wall of the annular cavity 8. Its main function is to ensure that the intermediate support rod 12 is tightly fitted to the inner wall of the annular cavity 8 via the fitting block 13. This prevents the rigid end of the intermediate support rod 12 from directly contacting the cavity wall of the annular rubber sleeve 2, thus preventing damage to the annular rubber sleeve 2. Furthermore, the flexible contact of the fitting block 13 allows for a smoother transmission of impact force, while ensuring that the intermediate support rod 12 remains in contact with the cavity wall during deformation, preventing it from detaching from the support point and ensuring the proper functioning of the intermediate support rod 12 in buffering and dispersing impact force.

[0073] Abrasion-resistant coating 14

[0074] The wear-resistant coating 14 is a functional coating applied to the outer surface of the annular rubber sleeve 2. It is made of highly wear-resistant materials, such as polyurethane wear-resistant coating or ceramic particle wear-resistant coating. Its main function is to improve the wear resistance of the outer surface of the annular rubber sleeve 2, prevent the surface of the annular rubber sleeve 2 from being worn due to friction with the ground or other objects during transportation and storage, extend the service life of the annular rubber sleeve 2, and at the same time, it can also provide a certain degree of protection for the annular rubber sleeve 2, preventing it from being damaged by external friction and affecting its impact-resistant function, thus ensuring the long-term effectiveness of the entire impact-resistant outer wall structure.

[0075] The structure is connected as follows: It includes a steel barrel 1. The surface of the steel barrel 1 is integrally formed with two sets of annular protrusions 4. The surface of the steel barrel 1 is integrally formed with multiple sets of annular protrusions 5 corresponding to the area between the two annular grooves 7. An annular rubber sleeve 2 is provided on the outside of the steel barrel 1. An annular cavity 8 is opened inside the annular rubber sleeve 2. An internal support frame 9 is provided inside the annular cavity 8. By adding the annular protrusions 4 and the annular protrusions 5, the strength of the steel barrel 1 body can be increased. At the same time, by adding the annular rubber sleeve 2 and the internal support frame 9 located inside the annular rubber sleeve 2, its impact resistance can be increased.

[0076] Furthermore, an annular groove 7 is provided on the inner wall of the annular rubber sleeve 2 at the position corresponding to the annular protrusion 4. When the annular rubber sleeve 2 is fitted onto the outside of the steel barrel 1, the annular protrusion 4 is stuck inside the annular groove 7.

[0077] Furthermore, an annular groove 6 is provided on the inner wall of the annular rubber sleeve 2 at the position corresponding to the annular protrusion 2 5. When the annular rubber sleeve 2 is fitted onto the outside of the steel barrel 1, the annular protrusion 2 5 is stuck inside the annular groove 6.

[0078] Furthermore, the internal support frame 9 includes multiple sets of strip plates 10 and inclined plates 11. The multiple sets of strip plates 10 are staggered vertically and vertically, corresponding to the inner wall of the annular cavity 8 on the side closer to the center point and the side away from the center point. Adjacent strip plates 10 are connected by inclined plates 11. When the steel barrel 1 is subjected to impact, it will first be squeezed against the annular rubber sleeve 2. At this time, the impact force will be transmitted to the internal support frame 9, and then squeezed against the strip plate 10 on the inner wall on the side away from the center point of the annular cavity 8. At this time, the inclined plate 11 connected to it deforms, disperses the impact force, plays a buffering role, and improves the impact resistance.

[0079] Furthermore, both the strip plate 10 on the inner wall away from the center point of the annular cavity 8 and the strip plate 10 on the inner wall close to the center point of the annular cavity 8 are vertically installed with intermediate support rods 12 on their respective sides. A fitting block 13 is fixedly installed at one end of the intermediate support rod 12 corresponding to the inner wall of the annular cavity 8. The fitting block 13 is in contact with the inner wall of the annular cavity 8. When the strip plate 10 is subjected to compressive force, the intermediate support rod 12 and the inclined plate 11 will deform accordingly, disperse the impact force, buffer it, and improve the impact resistance.

[0080] Furthermore, the outer side of the annular rubber sleeve 2 is provided with a wear-resistant coating 14, which can increase the wear resistance effect.

[0081] Furthermore, both the upper and lower ends of the annular rubber sleeve 2 are integrally formed with side extensions 3, which are in close contact with the outer wall of the steel barrel 1.

[0082] Working principle: When the steel drum 1 is subjected to an impact force, it will first be squeezed against the annular rubber sleeve 2. At this time, the impact force will be transmitted to the internal support frame 9, and then squeezed against the strip plate 10 on the inner wall on the side away from the center point of the annular cavity 8. At this time, the intermediate support rod 12 and the inclined plate 11 connected to it will deform accordingly, disperse the impact force, play a buffering role, and improve the impact resistance.

[0083] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An impact-resistant outer wall structure for a high wear-resistant steel drum, characterized in that, The steel drum (1) includes two sets of annular protrusions (4) integrally formed on the surface of the steel drum (1). The area between the two annular grooves (7) on the surface of the steel drum (1) is integrally formed with multiple sets of annular protrusions (5). An annular rubber sleeve (2) is provided on the outside of the steel drum (1). An annular cavity (8) is provided inside the annular rubber sleeve (2). An internal support frame (9) is provided inside the annular cavity (8).

2. The impact-resistant outer wall structure of a high wear-resistant steel drum according to claim 1, characterized in that: The inner wall of the annular rubber sleeve (2) is provided with an annular groove (7) at the position corresponding to the annular protrusion (4). When the annular rubber sleeve (2) is fitted onto the outside of the steel barrel (1), the annular protrusion (4) is stuck inside the annular groove (7).

3. The impact-resistant outer wall structure of a high wear-resistant steel drum according to claim 1, characterized in that: The inner wall of the annular rubber sleeve (2) is provided with an annular groove (6) at the position corresponding to the annular protrusion (5). When the annular rubber sleeve (2) is fitted onto the outside of the steel barrel (1), the annular protrusion (5) is stuck inside the annular groove (6).

4. The impact-resistant outer wall structure of a high wear-resistant steel drum according to claim 1, characterized in that: The internal support frame (9) includes multiple sets of strip plates (10) and inclined plates (11). The multiple sets of strip plates (10) are staggered vertically and vertically corresponding to the inner wall of the annular cavity (8) on the side closer to the center point and the side away from the center point. Adjacent strip plates (10) are connected by inclined plates (11).

5. The impact-resistant outer wall structure of a high wear-resistant steel drum according to claim 4, characterized in that: A middle support rod (12) is vertically installed on the inner wall of the strip plate (10) on the side away from the center point of the annular cavity (8) and the inner wall of the strip plate (10) close to the center point of the annular cavity (8). A fitting block (13) is fixedly installed on one end of the middle support rod (12) corresponding to the inner wall of the annular cavity (8). The fitting block (13) is in contact with the inner wall of the annular cavity (8).

6. The impact-resistant outer wall structure of a high wear-resistant steel drum according to claim 1, characterized in that: The outer side of the annular rubber sleeve (2) is provided with a wear-resistant coating (14).

7. The impact-resistant outer wall structure of a high wear-resistant steel drum according to claim 1, characterized in that: Both ends of the annular rubber sleeve (2) are integrally formed with side extensions (3), and the side extensions (3) are in close contact with the outer wall of the steel barrel (1).

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