Composite elevator counterweight

Abstract

The utility model discloses a kind of composite elevator counterweight, including cast iron bottom shell, forming block and cover plate, the top surface of cast iron bottom shell is provided with forming cavity, and the side wall of forming cavity is provided with multiple convex reinforcing ribs, forming block is connected in the forming cavity With the reinforcing rib is formed, the periphery of the cover plate is provided with the barb edge that is inclined inwards and downwards;The cast iron bottom shell of the composite elevator counterweight is provided with reinforcing rib in forming cavity, reinforcing rib can maximize the thickness of cast iron bottom shell, to maximize the cost reduction and adjust the proportion of cast iron and forming block (concrete), increase the proportion of forming block and make counterweight overall satisfy required weight density, forming block is connected in forming cavity and is formed, and the barb edge of cover plate is embedded into forming block to avoid cover plate easily fall off, to form closed overall package protection forming block, improve the strength of counterweight overall, without adding iron ore to avoid producing radiation, pollution and peculiar smell affecting user's health.

Description

Technical fields:

[0001] This utility model relates to the field of elevator facility technology, and in particular to a composite elevator counterweight. Background technology:

[0002] Elevator counterweights are an important component of elevator systems, primarily used to balance the weight of the car and load, ensuring smooth elevator operation and reducing motor load. Traditional elevator counterweights simply consist of stacked iron plates or cement. However, iron plates are expensive, and cement edges are prone to wear, reducing overall weight and affecting the counterweight's normal operation. Therefore, existing elevator counterweights use a welded iron shell containing high-density mineral crystals (such as pyrite) and then encased in concrete to achieve the required weight density while reducing costs. However, because these mineral crystals have excessive radiation and corrosiveness, and may even produce harmful corrosive odors, they corrode the iron shell and fall off during use, reducing overall weight and affecting the counterweight's normal operation. Therefore, a new elevator counterweight structure needs to be designed to address these issues. Utility model content:

[0003] To address the aforementioned technical problems, this utility model provides a composite elevator counterweight block with reinforcing ribs installed inside the molding cavity. These reinforcing ribs can minimize the thickness of the cast iron base shell, thereby reducing costs and adjusting the ratio of cast iron to the molding block (concrete). This increases the proportion of the molding block and ensures that the overall counterweight block meets the required weight density. The molding blocks are connected and formed within the molding cavity, and the barbed edge of the cover plate is embedded in the molding block to prevent the cover plate from easily falling off. This forms a closed, integrated enclosure that protects the molding block, improving the overall strength of the counterweight block. Furthermore, it eliminates the need for adding iron ore, thus avoiding radiation, pollution, and odors that could affect user health.

[0004] A composite elevator counterweight includes a cast iron base shell, a forming block, and a cover plate. The top surface of the cast iron base shell is provided with a forming cavity, and the side wall of the forming cavity is provided with a plurality of raised reinforcing ribs. The forming block is formed by connecting and forming with the reinforcing ribs in the forming cavity. The cover plate is provided with inwardly downward inclined barbed edges around its perimeter, and the cover plate is embedded in the forming block through the barbed edges.

[0005] Preferably, the two ends of the cast iron base shell are provided with limiting protrusions, the width of the limiting protrusions is smaller than the width of the cast iron base shell, and the joint between the limiting protrusions and the cast iron base shell is an arc-shaped structure.

[0006] Preferably, the bottom surface of the limiting protrusion is provided with a handle groove, the width of the handle groove is more than 20mm, and the height of the handle groove is more than 10mm.

[0007] Preferably, the bottom surface of the molding cavity is provided with a plurality of raised reinforcing ribs, and a plurality of molding grooves are formed between the reinforcing ribs.

[0008] Preferably, it also includes multiple reinforcing bars, and the sidewalls and bottom surfaces of the forming cavity are provided with multiple protruding reinforcing bars. The reinforcing bars located on the sidewalls of the forming cavity are provided with slots, and the reinforcing bars are engaged with the reinforcing bars and integrally formed with the forming block in the forming cavity.

[0009] Preferably, the top of the sidewall of the molding cavity is provided with an outwardly inclined slope, and the molding cavity has an inverted trapezoidal structure that is wider at the top and narrower at the bottom. The cover plate and the bottom surface of the molding cavity are provided with multiple through holes, and the inclined inner angle formed between the barb edge and the cover plate is less than 90°.

[0010] The beneficial effects of this utility model are as follows: The composite elevator counterweight block is formed by the cooperation of a cast iron base shell, a molding block, and a cover plate. The cast iron base shell is provided with a molding cavity, and reinforcing ribs are provided in the molding cavity. The reinforcing ribs can minimize the thickness of the cast iron base shell, thereby minimizing costs and adjusting the ratio of cast iron to molding block (concrete). This increases the proportion of molding block and makes the overall counterweight block meet the required weight density. The molding block is connected and formed in the molding cavity, and the barbed edge of the cover plate is embedded in the molding block to prevent the cover plate from easily falling off. This forms a closed overall enclosure to protect the molding block, improves the overall strength of the counterweight block, and avoids the generation of radiation, pollution, and odors that may affect the health of users without the need to add iron ore. Attached Figure Description

[0011] Appendix Figure 1 This is a perspective view of the present utility model;

[0012] Appendix Figure 2 This is an exploded view of the present invention;

[0013] Appendix Figure 3 This is a schematic diagram of the cover plate structure in this utility model;

[0014] Appendix Figure 4 This is a schematic diagram of the cast iron bottom shell structure in this utility model.

[0015] In the diagram: 1 Cast iron base shell, 2 Forming block, 3 Cover plate, 4 Forming cavity, 5 Reinforcing rib, 6 Barbed edge, 7 Limiting protrusion, 8 Handle groove, 9 Reinforcing bar, 10 Card groove, 11 Slope, 12 Through hole. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so as to provide a clearer understanding of the technical concept claimed by the present invention.

[0017] like Figures 1 to 4As shown, a composite elevator counterweight includes a cast iron base shell 1, a forming block 2, and a cover plate 3. The top surface of the cast iron base shell 1 is provided with a forming cavity 4, and the side wall of the forming cavity 4 is provided with a plurality of protruding reinforcing ribs 5. The forming block 2 is connected and formed with the reinforcing ribs 5 in the forming cavity 4. The cover plate 3 is provided with inwardly downward inclined barbed edges 6 around its perimeter, and the cover plate 3 is embedded in the forming block 2 through the barbed edges 6.

[0018] The working principle of the composite elevator counterweight block described in this utility model is achieved through the cooperation of the cast iron base shell 1, the molded block 2, and the cover plate 3. Figures 1 to 4 As shown, the cast iron base shell 1 is provided with a forming cavity 4. Workers first place the reinforcing ribs 5 into the forming cavity 4, then pour and smooth the sand and gravel concrete material into the cavity 4. Next, the cover plate 3 is pressed on, with its barbed edges 6 embedded in the sand and gravel concrete material, forming the cavity. The sand and gravel concrete material is a commonly used, pollution-free, environmentally friendly material that does not produce radiation or odor. Subsequently, the sand and gravel concrete material forms a forming block 2 within the forming cavity 4. The reinforcing ribs 5 and the forming block 2 form multiple interlocking structures, making it difficult for the cover plate 3 and the forming block 2 to detach and forming a seal. The closed overall enclosure protects the molded block 2, improving the overall strength of the counterweight block. The molded cavity 4 is equipped with reinforcing ribs 5, which can minimize the thickness of the cast iron base shell 1, thereby minimizing costs and adjusting the ratio of cast iron to molded block 2 (concrete). This increases the proportion of molded block 2 and ensures that the overall weight density of the counterweight block meets the requirements. Compared with traditional elevator counterweight blocks, this composite elevator counterweight block can meet the counterweight requirements and has the effect of cost reduction and environmental protection. It does not require the addition of iron ore, thus avoiding radiation, pollution and odor that may affect the health of users.

[0019] Specifically, the cast iron base shell 1 has limiting protrusions 7 at both ends. The width of the limiting protrusions 7 is smaller than the width of the cast iron base shell 1, and the joint between the limiting protrusions 7 and the cast iron base shell 1 is an arc-shaped structure. The bottom surface of the limiting protrusions 7 has a handle groove 8, the width of which is 20mm or more, and the height of which is 10mm or more. Figure 4 As shown, the explanation is based on the width direction of the handle groove 8 from left to right. Figures 1 to 4 As shown, the counterweight needs to be loaded into the support frame (not shown in the figure) during use. Support columns are set at the four top corners of the support frame. The width of the limiting protrusion 7 is smaller than the width of the cast iron base 1 and forms a clearance groove. The joint between the limiting protrusion 7 and the cast iron base 1 is an arc-shaped structure to facilitate the placement and removal of the counterweight into the support frame. In addition, the handle groove 8 of the limiting protrusion 7 is convenient for the operator to insert their fingers and to hold the limiting protrusion 7 to lift and move the counterweight.

[0020] The composite elevator counterweight block of this utility model also includes multiple reinforcing bars 9. Multiple protruding reinforcing ribs 5 are provided on the sidewalls and bottom surface of the forming cavity 4, and slots 10 are provided on the reinforcing ribs 5 located on the sidewalls of the forming cavity 4. The reinforcing bars 9 are engaged with the reinforcing ribs 5 and integrally formed with the forming block 2 within the forming cavity 4. Figures 1 to 4 As shown, the forming ribs 9 in the forming cavity 4 can form more interlocking structures with the forming block 2, improving the stability of the forming block 2. In addition, some reinforcing ribs in the forming cavity 4 can be provided with slots 10, and the reinforcing ribs 9 are interlocked with the slots 10. Then, the workers pour concrete into the forming cavity 4 so that the reinforcing ribs 9 and the forming block 2 are formed as one piece and so as to prevent the position of the reinforcing ribs 9 from shifting, which can make the formed block 2 more stable after forming.

[0021] Furthermore, the top of the sidewall of the molding cavity 4 is provided with an outwardly inclined slope 11, making the molding cavity 4 an inverted trapezoidal structure that is wider at the top and narrower at the bottom. The cover plate 3 and the bottom surface of the molding cavity 4 are provided with multiple through holes 12. The inclined inner angle formed between the barbed edge 6 and the cover plate 3 is less than 90°. Figures 1 to 4 As shown, the cast iron base shell 1 can be made by pouring molten iron into a corresponding mold. The slope 11 formed in the forming cavity 4 can be arc-shaped, and the forming cavity 4 has an inverted trapezoidal structure that is wider at the top and narrower at the bottom. This facilitates the demolding of the forming cavity 4 of the cast iron base shell 1 during mass production and prevents the formation of gaps when pouring concrete. After pouring concrete material into the forming cavity 4 of the cast iron base shell 1, the cover plate 3 is placed on top, and the cast iron base shell 1 is left to stand and the concrete material is allowed to cool and solidify at room temperature. The through holes 12 of the cover plate 3 and the forming cavity 4 are breathable and accelerate the cooling and solidification of the concrete material. It should be noted that the cast iron base shell 1 is not suspended when it is standing. That is, a plate can be placed on the bottom surface of the cast iron base shell 1 for support, or the cast iron base shell 1 can be placed on the ground. The concrete material inside the cast iron base shell 1 will not continuously leak out from the through holes 12. In addition, after forming, the barbed edge 6 of the cover plate 3 is embedded in the forming block 2. In this way, the barbed edge 6 hooks the forming block 2 and makes the cover plate 3 difficult to fall off.

[0022] The above are merely specific embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A composite elevator counterweight, characterized in that: The device includes a cast iron base shell, a forming block, and a cover plate. The top surface of the cast iron base shell is provided with a forming cavity, and the side wall of the forming cavity is provided with a plurality of raised reinforcing ribs. The forming block is connected and formed with the reinforcing ribs in the forming cavity. The cover plate is provided with inwardly downward inclined barbed edges around its perimeter, and the cover plate is embedded in the forming block through the barbed edges.

2. The composite elevator counterweight according to claim 1, characterized in that: The cast iron base shell has limit protrusions at both ends. The width of the limit protrusions is smaller than the width of the cast iron base shell, and the joint between the limit protrusions and the cast iron base shell is an arc-shaped structure.

3. The composite elevator counterweight according to claim 2, characterized in that: The bottom surface of the limiting protrusion is provided with a handle groove, the width of the handle groove is more than 20mm, and the height of the handle groove is more than 10mm.

4. The composite elevator counterweight according to claim 1, characterized in that: It also includes multiple reinforcing bars. The sidewalls and bottom surfaces of the forming cavity are provided with multiple protruding reinforcing ribs, and the reinforcing ribs located on the sidewalls of the forming cavity are provided with slots. The reinforcing bars are engaged with the reinforcing ribs and integrally formed with the forming block in the forming cavity.

5. A composite elevator counterweight according to claim 1, characterized in that: The top of the side wall of the molding cavity is provided with an outward sloping surface, making the molding cavity an inverted trapezoidal platform structure that is wider at the top and narrower at the bottom. The cover plate and the bottom surface of the molding cavity are provided with multiple through holes, and the inclination angle formed between the barbed edge and the cover plate is less than 90°.

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