Weldless toothed bucket for elevator

Abstract

This utility model relates to the field of bucket technology for elevators, specifically to a weld-free toothed bucket for elevators, comprising a front panel, a rear panel, a bottom panel, and side panels. The bottom of the front panel, the bottom of the rear panel, and the bottom of the side panels are all integrally formed and connected to the bottom panel. The two ends of the side panels are integrally formed and connected to the sides of the front panel and the sides of the rear panel, respectively. The angle between the front panel and the bottom panel is 140°, and the angle between the rear panel and the bottom panel is 87°. Several shovel teeth are integrally formed on the end of the front panel away from the bottom panel, and each shovel tooth has an integrally formed reinforcing rib, which is arranged along the length of the shovel tooth. This utility model, through optimized structure and design, significantly extends its service life while reducing mechanical failures and premature scrapping of components caused by defects in traditional buckets. It can form dedicated trenches during digging, further improving operational stability and efficiency, achieving the core goals of improved digging efficiency, resource conservation, economic practicality, and energy saving.

Description

Technical Field

[0001] This utility model relates to the field of bucket technology for elevators, specifically to a weld-free toothed bucket for elevators. Background Technology

[0002] Currently, all traditional hoists use the old-fashioned straight-blade shovel for digging. The shovel width varies from 260mm to 460mm, depending on the specifications. The material is typically 2.5mm-3mm thick ordinary steel sheet. The production process involves marking, cutting, and drilling the sheet metal. The U-shaped bucket body is formed using tooling bending and stamping, and then several pieces of the formed material are welded together. This complex manufacturing process results in long production times, high costs, and a large, heavy size, thus leading to a high selling price.

[0003] Nowadays, the materials lifted by the hoists used by various industrial enterprises and glass manufacturing enterprises are mainly gravel, glass slag, quartz sand and mixed materials. These materials are sharp, hard and wet, which causes serious wear on the bucket. In order to enhance the wear resistance and compression resistance of the entire straight shovel of the bucket, the manufacturer spares no expense to weld a 40-56mm wide flat steel ring around the bottom plate frame.

[0004] Traditional old-style buckets have inherent technical flaws in their digging angle and straight shovel design. Superficially, welding flat steel to the entire shovel opening appears to enhance its wear resistance and compressive strength, but this also increases the overall thickness of the shovel opening and the weight of the bucket itself. This further increases the resistance during digging or prevents the bucket from quickly inserting itself into the material to remove it, greatly affecting the bucket's digging efficiency and causing many unexpected mechanical failures to the hoist during operation.

[0005] In simple terms, the working principle of assembling buckets and the elevator involves stringing hundreds of individual buckets at equal intervals onto a belt approximately 40 meters long and 300mm or 500mm wide (this article only introduces two specifications of belt-driven elevators, excluding chain-driven elevator buckets). The two ends of the belt are overlapped and secured with bolts, forming a vertical ellipse shape on the upper and lower rollers inside the elevator. The upper and lower rollers are typically 4-5 stories high, with an empty space in between without any support. The upper roller is connected to the motor and is the driven roller, while the lower roller is the driven roller. The lower roller also has lead screws at both ends, mainly for adjusting the belt tension or lateral deviation.

[0006] The process of the bucket digging or pouring material into the silo is accomplished by continuously reciprocating around the upper and lower rollers in a 180-degree semi-circular rotation driven by the belt. The bucket moves down the belt with its head turned upside down to the lower roller, and when it digs material by performing a 180-degree semi-circular rotation, its shape is like a hoe digging and turning over the soil, digging into the material with the shovel and scooping it up.

[0007] Unfortunately, traditional old-fashioned buckets suffer from design flaws and lack the proper angle and sharp crescent-shaped blades of a hoe. In addition, the wide, thick, and blunt straight blades of the buckets, coupled with their horizontal orientation when digging, prevent them from quickly and effectively inserting themselves into the material and digging away enough material. As a result, it takes longer for the elevator to complete the production task of filling the hopper.

[0008] Because traditional buckets cannot promptly remove the continuously flowing material into the elevator, the material inside accumulates, widening the inner diameter of the lower roller's elliptical belt or squeezing the belt off to one side. This causes mechanical failures such as the belt and buckets scraping against the elevator's inner wall. Minor issues include blockages and shutdowns, belt tears and breaks, and bucket deformation or detachment. More serious problems involve belt breakage and jamming, resulting in tens of meters of belt, hundreds of buckets, and a mixture of material becoming stuck and trapped inside the narrow elevator. Repair work is extremely difficult, requiring several professional maintenance personnel and significant time to restore production.

[0009] In summary, the main drawbacks of traditional dustpans are: 1. When digging materials, traditional buckets cannot quickly insert into the material due to their wide and blunt blades. Under the influence of stress, thrust, resistance, squeezing, and the strong pulling force of the elevator, the individual buckets deform and are damaged at an accelerated rate. If they are not repaired or replaced in time, the deformed buckets are prone to mechanical failures such as collisions with the inner wall of the elevator or the inlet and outlet.

[0010] Second, because the blade of a traditional bucket is horizontal when digging material, the bottom of the blade is in close contact with the material, which generates greater resistance and friction, accelerates the wear of the blade, reduces the overall thickness of the bottom of the blade, and results in a honeycomb-like mesh, or even wear through it, causing the bucket to be scrapped prematurely.

[0011] Third, because traditional dustpans are made by heat processing and are assembled and welded from several materials, the weld marks on the dustpan are worn down in less than a year. In particular, after the weld marks on the two sides of the dustpan are worn down, tearing gaps will appear at both ends of the dustpan. At this time, the material is too thin to be repaired by welding. Due to the above reasons, even if a traditional dustpan is not used under normal circumstances, its lifespan is only about one year, and will not exceed one and a half years.

[0012] Fourth, because traditional buckets cannot quickly insert into the material during digging, the stress caused by the contact between the bucket and the material creates a strong counter-force or squeezing force (the lower the roller is adjusted, the tighter the "hard bottom" of the bucket and the material underneath, and the greater the reaction force). Under stress or counter-force, not only are the individual buckets prone to deformation, tearing, detachment, or damage, but the sharp-edged upper end of the belt on the back of the bucket will also wear creases of the same width as the bucket, shortening the belt's service life.

[0013] 5. Traditional buckets have wide and heavy shovels with high resistance. Furthermore, the flat bottom of the bucket, which is horizontally and tightly engaged with the material, results in a large friction area and high resistance. This easily leads to uneven wear and stress, causing the belt and bucket to frequently deviate from the drum, potentially resulting in squeezing and collisions with the inner walls of the elevator. This can cause minor issues such as belt cracks or tears, bucket deformation, damage, or detachment, and material leakage through the inner walls of the elevator. In severe cases, the belt may break, causing the elevator to stop working and production to cease.

[0014] Based on the above-mentioned shortcomings, this application proposes a weld-free toothed bucket. Summary of the Invention

[0015] To address the aforementioned problems, this utility model provides a weld-free toothed bucket for a hoist, which reduces wear on the bucket and belt during digging, as well as wear on the hoist during lifting, and improves the digging and conveying efficiency of the hoist.

[0016] To achieve the above objectives, the technical solution of this utility model is as follows: a weld-free toothed bucket for a hoist, comprising a front panel, a rear panel, a bottom panel located between the bottom of the front panel and the rear panel, and side panels located between the two sides of the front panel and the rear panel. The bottom of the front panel, the bottom of the rear panel, and the bottom of the side panels are all integrally formed and connected to the bottom panel. The two ends of the side panels are integrally formed and connected to the side of the front panel and the side of the rear panel, respectively. The included angle between the front panel and the bottom panel is 140°, and the included angle between the rear panel and the bottom panel is 87°. The front panel has several integrated shovel teeth at the end away from the bottom panel, and each shovel tooth has an integrated reinforcing rib, which is arranged along the length of the shovel tooth.

[0017] Furthermore, the inner surface of the shovel teeth is flush with the inner surface of the front panel, the outer surface of the shovel teeth is flush with the outer surface of the front panel, and the reinforcing rib extends and protrudes from the front panel to the side near the rear panel.

[0018] Furthermore, the reinforcing rib is streamlined, and its thickness is the same as that of the front panel. The height of the reinforcing rib from the front panel surface gradually decreases along the length of the reinforcing rib, and the maximum height of the reinforcing rib is greater than or equal to 5mm from the front panel surface.

[0019] Furthermore, the spade teeth have a triangular structure, and the sharp ends of the spade teeth extend away from the bottom panel.

[0020] Furthermore, the front panel is 154mm wide, the bottom panel is 56mm wide, the rear panel is 160mm wide, the front panel, bottom panel, and rear panel are all 248mm long, and the front panel, bottom panel, rear panel, and side panel are all 3mm thick.

[0021] Furthermore, the number of shovel teeth is at least four, the bottom width of the shovel teeth is 57mm, and the length of the shovel teeth is 40mm.

[0022] Furthermore, the center line of the reinforcing rib coincides with the center line of the shovel tooth, the length of the reinforcing rib is 30mm, and the width of the reinforcing rib gradually decreases along the length direction, with a maximum width of 10mm.

[0023] Furthermore, the rear panel has a connection hole with a diameter of 10.3mm and the center of the connection hole is 70mm from the top surface of the rear panel.

[0024] Furthermore, the number of connecting holes is at least three, the connecting holes are located on the same straight line, and the distance between adjacent connecting holes is 80mm.

[0025] Compared to existing technologies, the above solution has the following advantages: 1. This utility model features an innovative weld-free, integral toothed bucket structure. It boasts a neat appearance and lightweight design, with each bucket weighing approximately 5 kg less than traditional buckets, reducing the amount of material on the elevator belt by 30%. Its production process is simple, rapid, and cost-effective, saving bucket resources and significantly reducing belt load. It effectively overcomes the shortcomings of traditional buckets, such as complex manufacturing processes, long cycles, high costs, and bulky size, thus significantly improving material conveying efficiency.

[0026] 2. Based on long-term practical optimization, the tilt angle design creates a reasonable angle of approximately 30° between the bottom of the bucket and the material, changing the traditional horizontal contact posture of the bucket with the material. This significantly reduces digging resistance and uneven friction, avoids belt swaying and premature perforation of the bucket bottom, and also avoids malfunctions caused by excessively large or small angles, reducing problems such as collision and scratching of the inner wall of the elevator and belt tearing.

[0027] 3. The innovative triangular shovel tooth design, combined with "half-bullet" shaped reinforcing ribs, transforms the traditional full-section contact scooping into fixed-point contact scooping. The shovel tooth dimensions are optimized for quick material insertion and guide the material to slide in in a streamlined manner, reducing material damage to the bucket and components from multiple dimensions. This completely solves the problems of shovel tooth bending and breakage. After nearly two years of practical verification, there have been no cases of tearing, wear-through, or scrapping as with traditional buckets.

[0028] 4. This utility model features a comprehensively optimized structure and design, significantly extending its service life while reducing mechanical failures and premature scrapping of components caused by the defects of traditional buckets. It can form dedicated trenches during digging, further improving operational stability and efficiency, achieving the core goals of improved digging efficiency, resource conservation, economic practicality, and energy saving. Attached Figure Description

[0029] Figure 1 This is an isometric view of the weldless toothed bucket according to an embodiment of the present invention; Figure 2 This is a front view of the weldless toothed bucket according to an embodiment of the present invention; Figure 3 This is a C-direction view of an embodiment of the present utility model; Figure 4 This is a view along direction D of an embodiment of the present utility model; Figure 5 This is a view along direction E of an embodiment of the present utility model; Figure 6 This is a frontal comparison diagram of the working state of the weldless toothed bucket of this utility model embodiment and the traditional bucket; Figure 7 This is a side view comparison diagram of the working state of the weldless toothed bucket of this utility model embodiment and the traditional bucket; Figure 8 This is a side sectional view of the reinforcing rib in an embodiment of the present utility model; The reference numerals in the accompanying drawings include: 10, front panel; 20, rear panel; 30, side panel; 40, bottom panel; 50, shovel teeth; 501, reinforcing rib; 60, connecting hole. Detailed Implementation

[0030] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] The following detailed description illustrates the specific implementation method: Implementation, for example Figures 1-5 As shown: A weld-free toothed bucket for a hoist includes a front panel 10, a rear panel 20, a bottom panel 40, and side panels 30. The front panel 10, rear panel 20, bottom panel 40, and side panels 30 are integrally formed by die casting. The bottom panel 40 is located between the bottoms of the front panel 10 and the rear panel 20, connecting their bottoms. The side panels 30 are located between the two sides of the front panel 10 and the rear panel 20, connecting their two sides, thus forming a bucket structure.

[0034] In this embodiment, the angle between the front panel 10 and the bottom panel 40 of the toothed bucket is 140°, and the angle between the rear panel 20 and the bottom panel 40 is 87°. Furthermore, the front panel 10 is 154mm wide, the bottom panel 40 is 56mm wide, and the rear panel 20 is 160mm wide. The lengths of the front panel 10, bottom panel 40, and rear panel 20 are all 248mm, and the thicknesses of the front panel 10, bottom panel 40, rear panel 20, and side panel 30 are all 3mm. The rear panel 20 has three connecting holes 60, each with a diameter of 10.3mm. The center of each connecting hole 60 is 70mm from the top surface of the rear panel 20. The connecting holes 60 are located on the same straight line, and the distance between adjacent connecting holes 60 is 80mm.

[0035] In this embodiment, a plurality of shovel teeth 50 are integrally die-cast at the shovel mouth of the toothed bucket. Specifically, the shovel teeth 50 are located at the end of the front panel 10 away from the bottom panel 40. In this embodiment, the shovel teeth 50 are triangular shovel teeth with a triangular structure. The sharp part of the shovel teeth 50 extends away from the bottom panel 40. The inner surface of the shovel teeth 50 is flush with the inner surface of the front panel 10, and the outer surface of the shovel teeth 50 is flush with the outer surface of the front panel 10, so that the sharp part of the shovel teeth 50 preferentially contacts the material when the toothed bucket digs material. In some embodiments, shovel teeth 50 of different shapes can be selected according to different types of materials. Preferably, the shovel teeth 50 have sharp parts.

[0036] In this embodiment, a reinforcing rib 501 is integrally formed on each shovel tooth 50. The reinforcing rib 501 is arranged along the length direction of the shovel tooth 50 and extends and protrudes from the front panel 10 near the rear panel 20. The reinforcing rib 501 is streamlined (the cross-section is "half-bullet" shaped, see reference). Figure 3 , Figure 4 and Figure 8 As shown, the thickness of each part of the reinforcing rib 501 is the same as the thickness of the front panel 10, which is 3mm. The maximum height of the reinforcing rib 501 is greater than or equal to 5mm from the surface of the front panel 10. In this embodiment, the maximum height of the reinforcing rib 501 is 5mm from the surface of the front panel 10. The height of the reinforcing rib 501 from the surface of the front panel 10 gradually decreases along the length of the reinforcing rib 501, that is, the height gradually decreases towards the sharp part of the shovel tooth 50. At the same time, the reinforcing rib 501 forms a groove on the surface of the front panel 10 away from the rear panel 20. The maximum depth of the groove is 5mm, and the depth gradually decreases towards the sharp part of the shovel tooth 50.

[0037] Furthermore, in some embodiments, the number and size of the shovel teeth 50 are determined according to the overall specifications of the bucket. In this embodiment, there are four shovel teeth 50, and the specifications of each shovel tooth 50 are as follows: The bottom width of the shovel tooth 50 is 57mm, and the length of the shovel tooth 50 is 40mm; the center line of the reinforcing rib 501 coincides with the center line of the shovel tooth 50, the length of the reinforcing rib 501 is 30mm, the width of the reinforcing rib 501 gradually decreases along the length direction of the reinforcing rib 501, and the maximum width of the reinforcing rib 501 is 10mm.

[0038] This utility model, through its novel design and unique structure, pioneers a weld-free, integral toothed bucket structure. Its appearance is smooth and regular, its size is compact, and the weight of a single bucket is approximately 5 kg lighter than traditional buckets. For applications where elevator belts typically assemble hundreds of buckets, this new type of bucket can reduce the number of buckets assembled by 30%, saving bucket resources and significantly reducing belt load, thus significantly improving material conveying efficiency by over 40% (for example, material conveying that originally required 8 hours can be completed in 5.5 hours using this weld-free toothed bucket). Simultaneously, the production process of this new bucket is simple and time-saving; it can be quickly molded after template preparation, resulting in lower production costs and effectively overcoming the shortcomings of traditional bucket production processes, such as complex processes, long production cycles, high costs, and bulky size.

[0039] The tilt design of this utility model is based on long-term production practice observation and research, and specifically addresses the technical pain points of traditional buckets. Because traditional buckets are horizontal when in contact with materials, the entire bottom area is in close contact with the material, resulting in high digging resistance, wide wear surface, and uneven friction. This leads to problems such as the bucket swinging left and right on the drum, colliding and scraping against the inner wall of the elevator, bucket damage, and belt tearing or breakage. This new bucket, through its tilt design, changes the horizontal contact posture of traditional buckets during digging, causing the bottom surface (shovel edge) of the bucket to tilt downwards, forming an angle of approximately 30° between the bottom surface of the bucket and the material. Practical experience has shown that an excessively large angle increases digging resistance, easily leading to problems such as bending or breaking of the triangular shovel teeth, bucket deformation, or loosening of fixing bolts; an excessively small angle fails to meet the technical requirements of improving digging efficiency, reducing bottom friction resistance, and preventing wear and perforation. This tilting design effectively solves the drawbacks of traditional buckets, such as increased resistance, uneven friction, belt swaying, and premature bottom perforation and scrapping caused by the contact between the bottom plane and the material.

[0040] This utility model's triangular shovel tooth 50 design pioneers a new form of bucket structure design for elevators. It optimizes the traditional straight-edged bucket's full-cross-section contact digging method into a point-contact digging method using triangular shovel teeth 50. Through the contact of the inclined sides of multiple triangular shovel teeth 50 with the material's front, and with the cooperation of the inclined structure, the bucket can quickly insert into the material, causing a sufficient amount of material to slide into the bucket in a streamlined manner along the inclined sides of the triangular shovel teeth 50, efficiently completing the digging operation. The dimensions of the triangular shovel teeth 50 are optimized: a height of 40mm and a lower tooth width of 57mm. Too high or too narrow a tooth would result in insufficient tooth strength, while too low or too wide a bottom would increase resistance, add weight, and affect the design. In practical applications, the number of shovel teeth 50 can be adjusted according to the bucket specifications. This triangular shovel tooth 50 digging method, from multiple dimensions including mechanics, stress transmission, reaction force cancellation, wear control, and resistance optimization, minimizes the impact and damage of material on the bucket and other components of the elevator.

[0041] Combination Figure 6 and Figure 7As shown, the actual production working state of the weldless toothed bucket in this embodiment and the traditional bucket are analyzed and compared. Figure (6a) shows a front view of the working state of the weldless toothed bucket in this embodiment. The front shovel teeth 50 of the weldless toothed bucket in this embodiment shovel into the material and shovel the material into its interior. Figure (6b) shows a front view of the working state of the traditional bucket. The front panel and bottom of the traditional bucket scrape against the material and push the material to load it into its interior. The long-term scraping between the front panel and bottom of the traditional bucket and the material will lead to increased wear and tear on the front panel and bottom of the traditional bucket, resulting in damage, or even separation of the front panel and bottom from the body, as shown on the right side of Figure (6b). It can be seen that the weldless toothed bucket in this embodiment, through the unique angle design and the design of the front shovel teeth 50, loads the material by shoveling it into the bucket at the bottom of the elevator, which can quickly shovel the material into the bucket. During the process, there is less contact and friction between the bucket and the material. Traditional buckets have a straight-line structure at the front. The material comes into contact with the bucket at the bottom of the elevator through a straight-line shovel. Before the bucket reaches its lowest point, the material is squeezed and pushed, and the front plate of the bucket comes into contact with the material and rubs against it, causing severe wear on the front of the bucket. The material is loaded slowly. After the bucket reaches its lowest point, the squeezed and pushed material accumulates in front of the bucket and eventually enters the bucket as it rises. At this time, because the amount of material at the front of the bucket is large, the front panel needs to bear greater resistance, which causes the front panel of the bucket to be stretched, gradually deformed, and even separated from the body.

[0042] Figure (7a) shows a side view of the working state of the weldless toothed bucket of the embodiment. Due to the design of the shovel teeth 50 and the special angle, grooves are formed on the surface of the material when shoveling the material. The grooves have a limiting effect on the bucket and prevent it from shifting to the left or right. Figure (7b) shows a side view of the working state of the conventional bucket. Since the conventional bucket uses the method of pushing the material to transport the surface material, the material surface is relatively flat without grooves. The belt continuously transports the bucket downwards. However, the height of the bucket cannot match the height of the belt conveyor descent, which causes the belt to slack. The material usually makes the bucket slip on its surface, which eventually causes the bucket and belt to scrape against the inner wall of the left side of the elevator.

[0043] Regarding the design of the shovel teeth in this embodiment, the initial design of the triangular shovel teeth 50 exhibited bending and breakage issues. After several improvements, the following approaches were taken: First, triangular tooth plates of the same material were overlapped and welded to the back (bottom plane) of the shovel teeth 50. While this increased the tooth thickness and strength, the process was complex, labor-intensive, and aesthetically unappealing. Next, stamped triangular toothed strips were overlapped and welded to the bucket. Although this reduced the workload, it still increased the weight of the bucket, raising production costs and extending the production cycle, thus contradicting the design principle of a weld-free bucket. Finally, by adding a "semi-bullet" shaped reinforcing rib 501 (see attached diagram for specific structure) in the middle of each triangular shovel tooth 50, the bending and breakage problems of the triangular shovel teeth 50 were fundamentally solved. Simultaneously, the strength and load-bearing capacity of the shovel teeth 50 were improved, and no related malfunctions occurred in subsequent applications.

[0044] Using a five-group, spaced assembly method, a comparative test was conducted with a traditional bucket on the same hoist belt. The traditional buckets, within one year or less of use, were all scrapped due to various factors, including tearing, deformation, bottom wear, and detachment. However, this utility model, after nearly two years of actual operation with millions of tons of materials, has maintained its original structural form and has not experienced the aforementioned scrapping issues.

[0045] When the bucket descends inverted along the belt to contact the material and dig, the inclined structure and sharp triangular shovel teeth 50 work together to quickly insert into the material and efficiently dig out a sufficient amount of material. When the bucket moves with the drum to the lower stop point, it reaches the deepest digging position. Because the elevator belt is prone to fatigue and loosening due to long-term heavy load operation, maintenance personnel need to adjust the drum downwards in time to tighten the belt and ensure that the belt is in a taut state to avoid large swaying or belt slippage on the drum when the bucket moves up and down. With repeated adjustment of the drum, a digging groove will be formed at the lower end. This groove is a structure that cannot be formed in traditional bucket operations. The new bucket can dig out material at a fixed point in the groove, which not only improves digging efficiency, but also effectively avoids the lateral deviation of the belt and bucket on the drum; at the same time, the inclined design reduces the large-area friction between the bottom of the bucket and the material, completely solving the honeycomb wear and thinning problems that occur at the bottom of traditional buckets.

[0046] In summary, this utility model effectively overcomes many defects of traditional buckets, reduces various mechanical failures and premature scrapping of supporting components caused by the design defects of traditional buckets, and achieves the core objectives of improving digging efficiency, saving resources, extending service life, being economical and practical, and saving energy and reducing consumption.

[0047] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A weld-free toothed bucket for a hoist, comprising a front panel (10), a rear panel (20), a bottom panel (40) located between the bottoms of the front panel (10) and the rear panel (20), and side panels (30) located between the two sides of the front panel (10) and the rear panel (20), characterized in that, The bottom of the front panel (10), the bottom of the rear panel (20) and the bottom of the side panel (30) are all integrally formed and connected to the bottom panel (40). The two ends of the side panel (30) are integrally formed and connected to the side of the front panel (10) and the side of the rear panel (20) respectively. The included angle between the front panel (10) and the bottom panel (40) is 140°, and the included angle between the rear panel (20) and the bottom panel (40) is 87°. The front panel (10) has several shovel teeth (50) integrally formed at the end away from the bottom panel (40). Each shovel tooth (50) has a reinforcing rib (501) integrally formed on it, and the reinforcing rib (501) is arranged along the length of the shovel tooth (50).

2. The weldless toothed scoop for an elevator according to claim 1, characterized in that, The inner surface of the shovel tooth (50) is flush with the inner surface of the front panel (10), and the outer surface of the shovel tooth (50) is flush with the outer surface of the front panel (10). The reinforcing rib (501) extends and protrudes from the front panel (10) to the side near the rear panel (20).

3. The weldless toothed scoop for an elevator according to claim 2, characterized in that, The reinforcing rib (501) is streamlined and has the same thickness as the front panel (10). The height of the reinforcing rib (501) from the surface of the front panel (10) gradually decreases along the length of the reinforcing rib (501), and the maximum height of the reinforcing rib (501) is greater than or equal to 5 mm from the surface of the front panel (10).

4. The weldless toothed scoop for an elevator as set forth in claim 1, wherein The shovel teeth (50) have a triangular structure, and the sharp part of the shovel teeth (50) extends away from the bottom panel (40).

5. The weldless toothed scoop for an elevator as set forth in claim 1, wherein The front panel (10) is 154mm wide, the bottom panel (40) is 56mm wide, the rear panel (20) is 160mm wide, the front panel (10), the bottom panel (40) and the rear panel (20) are all 248mm long, and the front panel (10), the bottom panel (40), the rear panel (20) and the side panel (30) are all 3mm thick.

6. The weldless toothed bucket for a hoist according to claim 1, characterized in that, The number of shovel teeth (50) is at least four, the bottom width of the shovel teeth (50) is 57 mm, and the length of the shovel teeth (50) is 40 mm.

7. The weldless toothed scoop for an elevator as set forth in claim 6, wherein The center line of the reinforcing rib (501) coincides with the center line of the shovel tooth (50). The length of the reinforcing rib (501) is 30mm. The width of the reinforcing rib (501) gradually decreases along the length direction of the reinforcing rib (501). The maximum width of the reinforcing rib (501) is 10mm.

8. The weldless toothed scoop for an elevator as set forth in claim 1, wherein The rear panel (20) has a connection hole (60) with a diameter of 10.3 mm and the center of the connection hole (60) is 70 mm away from the top surface of the rear panel (20).

9. The weldless toothed scoop for an elevator according to claim 8, characterized in that, The number of connecting holes (60) is at least three, the connecting holes (60) are located on the same straight line, and the distance between adjacent connecting holes (60) is 80mm.

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