Protective assembly for bottom of concrete hopper
By installing a protective sleeve and connecting components at the bottom of the concrete hopper and the folded edge, the problem of roofing membrane breaking when the hopper touches the bottom is solved, achieving flexible protection and efficient construction, and adapting to the needs of hoppers of different sizes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-30
- Publication Date
- 2026-04-07
AI Technical Summary
Existing technologies lack effective measures to prevent the roofing membrane from cracking when the concrete hopper hits the bottom, and existing protective measures are often inadequate or affect construction efficiency.
Design a bottom protection component for a concrete hopper, including a protective sleeve and a foldable edge, which is fixed to the bottom of the steel frame of the hopper by a connecting component. The protective sleeve, made of rubber or polyurethane material, wraps around the steel frame to distribute the load and protect the roofing membrane.
It effectively protects roofing membranes, adapts to hoppers of different sizes, is easy to install and disassemble, improves the protective effect of the roof waterproofing layer during construction, and avoids damage to the membranes from the sharp edges of the hoppers.
Smart Images

Figure CN224093017U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, specifically to a protective component for the bottom of a concrete hopper. Background Technology
[0002] With the continuous development of the construction industry, the requirements for the protection of finished products are becoming increasingly stringent. During the construction of the mortar protective layer for roof waterproofing membranes, a crane is typically used to lift the hopper for concrete placement. However, in traditional operations, the crane operator's view is often obstructed, potentially causing the hopper to be placed directly on the roof.
[0003] The bottom of the hopper is typically made of angle steel, forming a rectangular frame with sharp corners and edges. Furthermore, the hopper is quite heavy when filled with concrete. In this situation, if the hopper directly contacts the roof without any protective measures (i.e., "bottoming out"), it can easily cause the roofing membrane to crack, ultimately rendering it ineffective at waterproofing. This not only affects the quality and safety of the building but can also lead to additional maintenance costs and construction delays. Especially in high-rise buildings or large-scale projects, the integrity of the roof waterproofing has a crucial impact on the overall lifespan and performance of the building. Currently, there is a lack of effective solutions on the market to prevent roofing membrane cracking caused by hopper contact with the ground. Existing protective measures are often incomplete or impractical, failing to meet actual construction needs. For example, some methods may increase the weight of the hopper, affecting construction efficiency; others may lack flexibility and be unable to adapt to different hopper sizes or different types of roofing materials.
[0004] Therefore, there is an urgent need to design a new type of bottom protective sleeve that can effectively protect the roofing membrane without significantly affecting the use of the hopper and construction efficiency. This protective sleeve should have good cushioning performance, be adaptable to hoppers of different sizes, and be easy to install and remove for flexible use on various construction sites. Utility Model Content
[0005] In view of this, the purpose of this utility model is to provide a protective component for the bottom of a concrete hopper. By setting a protective sleeve at the bottom of the hopper, the concrete hopper will not damage the roofing membrane when placed on the roof, thereby improving the protection of the finished roofing membrane and eliminating the quality risks of membrane breakage.
[0006] This utility model provides a protective component for the bottom of a concrete hopper, including a protective sleeve disposed below a steel frame at the bottom of the hopper. The protective sleeve includes a protective sleeve body and a folded edge disposed on the periphery of the protective sleeve body. The folded edge can be folded towards the protective sleeve body and wrap around the steel frame before being connected and fixed to the protective sleeve body.
[0007] Furthermore, a first connecting hole is provided on the protective sleeve body, and a second connecting hole is provided on the folded edge. After the folded edge is folded over, the first connecting hole and the second connecting hole are connected by a connecting component to achieve the connection and fixation between the folded edge and the protective sleeve body.
[0008] Furthermore, the connecting component includes a fastener and a limiting member. The fastener passes through the first connecting hole and the second connecting hole in sequence, and then the limiting member connects and fixes the protective sleeve body and the folded edge.
[0009] Furthermore, the limiting member is a limiting pin with a limiting part and an anti-detachment part, the anti-detachment part being used to prevent the limiting pin from falling off the fastener.
[0010] Furthermore, the fastener is a fastening bolt and has a through hole at its tail for engaging with the limiting part of the limiting pin.
[0011] Furthermore, a process notch is provided between the adjacent folded edges to ensure the flipping function of the folded edges.
[0012] Furthermore, the protective sleeve body and the folded edge are integrally formed.
[0013] Furthermore, the width of the folded edge is greater than the height of the side wall of the steel frame.
[0014] The beneficial effects of this utility model are: the protective component at the bottom of the concrete hopper of this utility model, by setting a protective sleeve under the steel frame at the bottom of the hopper and wrapping the steel frame with the foldable edge, effectively solves the problem of roof rolls breaking when the hopper touches the bottom. It has the advantages of effectively protecting the roof rolls, adapting to hoppers of different sizes, and being easy to install and disassemble. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0016] Figure 1 This is a schematic diagram of the structure of the protective component at the bottom of the concrete hopper in this utility model;
[0017] Figure 2 yes Figure 1 Structural cross-sectional view at point AA;
[0018] Figure 3 yes Figure 2 Enlarged view of point B in the middle;
[0019] Figure 4 This is a schematic diagram of the connecting component in this utility model;
[0020] Figure 5This is a schematic diagram of the structure of the protective sleeve in this utility model;
[0021] The attached figures are labeled as follows: 1-steel frame; 2-protective sleeve body; 3-folded edge; 4-connecting component; 5-fastener; 6-limiting component; 7-process notch; 8-inner notch; 9-protective corner; 201-first connecting hole; 301-second connecting hole; 501-through hole; 601-limiting component; 602-anti-detachment component. Detailed Implementation
[0022] As shown in the figure, this utility model provides a protective component for the bottom of a concrete hopper, including a protective sleeve disposed below a steel frame 1 at the bottom of the hopper. The protective sleeve includes a protective sleeve body 2 and a folded edge 3 disposed on the periphery of the protective sleeve body 2. The folded edge 3 can be folded towards the protective sleeve body 2 to wrap around the steel frame 1 and then connected and fixed to the protective sleeve body 2. The protective sleeve body 2 can be made of rubber, polyurethane, or composite materials, with a preferred thickness of 5-15mm, possessing sufficient wear resistance and impact resistance. The folded edge 3 has a width of 50-150mm and a folding angle of 90-180 degrees, capable of completely wrapping the steel frame 1. The connection and fixing methods include, but are not limited to, bolt connection, snap connection, or adhesive bonding. The protective sleeve body 2 and the folded edge 3 can be integrally formed by molding or can be separately manufactured and then connected by adhesive bonding. This protective component, by setting a foldable protective sleeve at the bottom of the hopper, effectively solves the problem of damage caused by direct contact between the sharp steel frame 1 at the bottom of the traditional hopper and the roofing membrane. When the hopper is placed, the protective sleeve covering the steel frame 1 is folded over as a buffer layer, dispersing the concentrated load generated by the hopper's own weight and preventing damage to the waterproof layer from sharp edges. Compared with existing technologies, this solution has a simple and reliable structure, is easy to install and maintain, and significantly improves the protection effect of the roof waterproof layer during construction without affecting the normal function of the hopper.
[0023] In this embodiment, a first connecting hole 201 is provided on the protective sleeve body 2, and a second connecting hole 301 is provided on the folded edge 3. After the folded edge 3 is folded over, the first connecting hole 201 and the second connecting hole 301 are connected by the connecting component 4 to achieve the connection and fixation between the folded edge 3 and the protective sleeve body 2. The first connecting hole 201 and the second connecting hole 301 can adopt a circular through hole 501, an oblong hole, or an irregular hole structure. The number of holes can be set to a single row or multiple rows according to actual needs. The connecting component 4 can adopt a detachable connection method such as a combination of bolts and nuts, rivets, or quick-connect pins. The edges of the first connecting hole 201 and the second connecting hole 301 can also be provided with reinforcing rings to improve the tear resistance of the holes. The reinforcing rings can be made of the same rubber or polyurethane composite material as the protective sleeve body 2. This technical solution achieves reliable fixation between the folded edge 3 and the protective sleeve body 2 by setting matching connecting holes and connecting components 4. Operators only need to align the holes and insert the connectors to complete the installation, which significantly improves the assembly efficiency and reliability of the protective component.
[0024] In this embodiment, the connecting component 4 includes a fastener 5 and a limiting member 6. The fastener 5 passes through the first connecting hole 201 and the second connecting hole 301 in sequence and then connects and fixes the protective sleeve body 2 and the folded edge 3 through the limiting member 6. The fastener 5 can be a standard fastener such as a bolt, screw or rivet, and the limiting member 6 can be a component with anti-detachment function such as a limiting pin, cotter pin or elastic buckle. This technical solution achieves a reliable connection between the protective sleeve body 2 and the folded edge 3 through the cooperation of the fastener 5 and the limiting member 6.
[0025] In this embodiment, the limiting member 6 is a limiting pin with a limiting part 601 and an anti-detachment part 602. The anti-detachment part 602 is used to prevent the limiting pin from falling off the fastener 5. The limiting part 601 of the limiting pin adopts a transverse pin structure to form an axial limit with the through hole 501 at the tail of the fastener 5. The anti-detachment part 602 can adopt an elastic snap-fit structure or a threaded locking structure, as shown in the specific structure. Figure 4 As shown, the engagement of the limiting part 601 with the through hole 501 of the fastener 5 prevents axial movement of the fastener 5, while the anti-dislodgement part 602 prevents accidental detachment due to vibration. Compared with the traditional nut locking method, this structure can be assembled without tools and is more operable in confined spaces, effectively solving the problem of protective sleeve displacement caused by loosening of connecting parts during the hoisting of concrete hoppers.
[0026] In this example, the fastener 5 is a fastening bolt with a through hole 501 at the tail. The through hole 501 is used to cooperate with the limiting part 601 of the limiting pin. The through hole 501 at the tail of the fastening bolt and the limiting part 601 of the limiting pin form an insertion fit relationship. When the limiting pin is inserted into the through hole 501, its limiting part 601 can prevent the fastening bolt from coming out of the connection hole.
[0027] In this embodiment, a process notch 7 is provided between adjacent folded edges 3. The notch is used to ensure the flipping function of the folded edges 3. The process notch 7 can be designed as a V-shaped cut or a U-shaped groove structure. The specific shape in this solution is as follows: Figure 5 As shown, the main purpose is to ensure that the folded edge 3 can be folded over and completely wrap around the steel frame 1, avoiding the impact of material stacking on the wrapping effect of the folded edge 3. Protective corner parts 9 for wrapping the corners of the steel frame 1 can also be pre-arranged at the root of the process notch 7, depending on the application scenario. An inner notch 8 is provided inside the protective sleeve body 2, and the edge of the inner notch 8 can also be flipped towards the folded edge 3 and connected to it. During manufacturing, the process notch 7 and the inner notch 8 can be formed simultaneously with the protective sleeve body 2 through injection molding, or they can be formed later through laser cutting. The process notch 7 effectively solves the material accumulation problem caused by continuous folding when wrapping the steel frame 1. When the folded edge 3 is folded upwards, the process notch 7 can release material stress, avoiding insufficient folding angle or misalignment of connecting holes due to material deformation. This design ensures that the folded edge 3 completely encloses the steel frame 1, and also ensures that the first connecting hole 201 and the second connecting hole 301 can be accurately aligned, so that the fastener 5 can pass through the connecting hole smoothly to complete the fixation. Compared with the traditional seamless folded edge structure, this solution significantly improves the convenience and reliability of on-site installation of the protective components.
[0028] In this embodiment, the protective sleeve body 2 and the folded edge 3 are integrally molded; polyurethane material can be used for injection molding, where polyurethane material has wear resistance and impact resistance; another embodiment is made of rubber material through compression molding, where rubber material has good elasticity and cushioning properties. Alternatively, polyethylene or polypropylene plastic materials can be used for hot pressing molding.
[0029] In this embodiment, the width of the folded edge 3 is greater than the height of the side wall of the steel frame 1. To ensure that the folded edge 3 can completely enclose the angle steel of the steel frame 1 and can be connected and fixed to the protective sleeve body, the width of the folded edge 3 is greater than the height of the side wall of the steel frame 1. The width of the folded edge 3 refers to the distance extended in a single direction from the edge of the protective sleeve body. Compared with the prior art, this design fundamentally eliminates the risk of protective failure caused by the insufficient size of the folded edge 3 to enclose the structure of the steel frame 1, significantly improving protective reliability while maintaining structural simplicity.
[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A protective assembly for the bottom of a concrete hopper, characterized in that: It includes a protective sleeve located below the steel frame at the bottom of the hopper. The protective sleeve includes a protective sleeve body and a folded edge provided on the periphery of the protective sleeve body. The folded edge can be folded towards the protective sleeve body and wrap around the steel frame before being connected and fixed to the protective sleeve body.
2. The protective assembly for the bottom of the concrete hopper according to claim 1, characterized in that: The protective sleeve body is provided with a first connecting hole, and the folded edge is provided with a second connecting hole. After the folded edge is folded over, the first connecting hole and the second connecting hole are connected by a connecting component to achieve the connection and fixation between the folded edge and the protective sleeve body.
3. The protective assembly for the bottom of the concrete hopper according to claim 2, characterized in that: The connecting component includes a fastener and a limiting member. The fastener passes through the first connecting hole and the second connecting hole in sequence, and then the limiting member connects and fixes the protective sleeve body and the folded edge.
4. The protective assembly for the bottom of the concrete hopper according to claim 3, characterized in that: The limiting component is a limiting pin with a limiting part and an anti-detachment part. The anti-detachment part is used to prevent the limiting pin from falling off the fastener.
5. The protective assembly for the bottom of the concrete hopper according to claim 4, characterized in that: The fastener is a fastening bolt and has a through hole at its tail for engaging with the limiting part of the limiting pin.
6. The protective assembly for the bottom of a concrete hopper according to claim 5, characterized in that: A process notch is provided between adjacent folded edges to ensure the flipping function of the folded edges.
7. The protective assembly for the bottom of a concrete hopper according to claim 1, characterized in that: The protective sleeve body and the folded edge are integrally formed.
8. The protective assembly for the bottom of a concrete hopper according to claim 1, characterized in that: The width of the folded edge is greater than the height of the side wall of the steel frame.