Elevator counterweight based on metal scrap
By using metal scrap to manufacture elevator counterweights, the problems of high cost and pollution associated with cast iron counterweights have been solved, achieving both cost reduction and environmental protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN ELEVATOR ELEVATOR PARTS
- Filing Date
- 2025-07-31
- Publication Date
- 2026-06-09
AI Technical Summary
Existing elevator counterweights are mostly made of cast iron, which is costly and causes significant environmental pollution, and cannot meet the needs of modern manufacturing.
Elevator counterweights are made from scrap metal. The interior of the metal shell is filled with a mixed layer of scrap metal or a composite filler layer of scrap metal and binder. The outer surface is covered with an anti-corrosion layer. The shell wall thickness is 2-5mm to ensure strength and compressive strength.
It enables the reuse of metal waste, reduces costs and environmental pollution, while meeting the elevator industry's requirements for compressive strength and extending service life.
Smart Images
Figure CN224336989U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of elevator counterweight technology, and in particular to an elevator counterweight based on metal scrap. Background Technology
[0002] An elevator counterweight is a balancing system that uses a counterweight device to balance the weight of the elevator car and part of the load. Its core consists of a counterweight frame and counterweight blocks, which are installed in the hoistway to form a dynamic balance with the car. The optimal balance is achieved when the car load reaches 40%-50% of the rated load.
[0003] However, existing elevator counterweights are mostly made of cast iron. Solid cast iron counterweights consume a lot of materials and are costly. The production of such counterweights also causes significant environmental pollution and cannot meet the needs of modern manufacturing.
[0004] Therefore, in order to address the above problems, this utility model urgently needs to provide an elevator counterweight based on metal scrap. Utility Model Content
[0005] The purpose of this utility model is to provide an elevator counterweight based on metal scrap. The structural design of the elevator counterweight based on metal scrap solves the technical problems of high cost and significant environmental pollution caused by using cast iron counterweights in the prior art.
[0006] This utility model provides an elevator counterweight based on metal scrap, including a metal shell, with an opening on the upper surface of the metal shell, and a cover plate sealed and fixed at the opening. The interior of the metal shell is densely filled with a waste metal filling layer mixed with waste metal or a composite filling layer mixed with metal scrap and binder.
[0007] Furthermore, the outer surfaces of the metal casing and the cover plate are provided with anti-corrosion layers.
[0008] Furthermore, the metal casing has a wall thickness of 2-5 mm.
[0009] Furthermore, the scrap metal filling layer is filled with a physical mixture of scrap metal; the scrap metal includes at least one of the following: scrap iron powder, scrap iron filings, scrap iron sand, scrap metal particles, scrap metal scraps, scrap metal blocks, scrap steel bars, or scrap steel plates.
[0010] Furthermore, the composite filler layer of metal scrap and binder is filled by physical mixing of metal scrap and binder; the metal scrap includes at least one of waste iron powder, waste iron filings, waste iron sand, waste metal particles, waste metal scraps, waste metal blocks, waste steel bars or waste steel plates; the binder includes epoxy resin or cement.
[0011] Furthermore, the metal casing is made of steel.
[0012] Furthermore, the metal casing has a cross-section that is rectangular, T-shaped, or polygonal; the metal casing is a single piece or multiple metal casing units spliced together.
[0013] Furthermore, the metal casing has handles on the front and rear side walls or bottom for handling.
[0014] Furthermore, the cover plate is fixed to the filling port by welding, or the cover plate is inserted into the metal shell and then welded to fix it.
[0015] Furthermore, the left and right ends of the metal casing are convex, concave, flat, or polygonal; the number of handles is 0-4; the cross-section of the handle is rectangular or semi-circular; when the handle is made of metal, the handle is integrally formed or welded to the metal casing; when the handle is made of plastic, the handle is snapped to the metal casing.
[0016] The elevator counterweight based on metal scrap provided by this utility model has the following advantages compared with the prior art:
[0017] 1. This utility model provides an elevator counterweight based on metal scrap. It uses a metal outer shell, inside which is densely filled with a mixture of scrap metal or a composite filler layer of scrap metal and binder. The scrap metal filler layer can meet the requirements of some elevator manufacturers for pure metal counterweights. The composite filler layer ensures a stronger bond between the scrap metal and the material, while reducing the amount of scrap metal used and lowering costs. The compressive strength of both the scrap metal filler layer and the composite filler layer is ≥40MPa, meeting the elevator industry's requirements for metal counterweight compressive strength. This invention achieves the reuse of metal scrap, resulting in a novel counterweight that eliminates the need for cast iron counterweights, reducing costs and environmental pollution.
[0018] 2. The elevator counterweight based on metal scrap provided by this utility model has an anti-corrosion layer on the outer surface of the metal shell and the outer surface of the cover plate to prevent corrosion of the metal shell and the cover plate surface and extend the service life.
[0019] 3. The elevator counterweight based on metal scrap provided by this utility model has an outer wall thickness of 2-5mm. By selecting the thickness, the strength of the metal shell can be guaranteed, and it is not easy to deform during the manufacturing and use process. Attached Figure Description
[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the structure of the elevator counterweight based on metal scrap as described in Embodiment 1 (I) (Perspective view, top view, cover plate removed);
[0022] Figure 2 This is a schematic diagram (a) of the structure of the elevator counterweight based on metal scrap as described in Embodiment 1 (a perspective view, top view);
[0023] Figure 3 This is a schematic diagram (II) (three-dimensional view) of the elevator counterweight based on metal scrap described in Embodiment 1.
[0024] Figure 4 This is a schematic diagram (three) (three-dimensional view) of the elevator counterweight based on metal scrap described in Embodiment 1.
[0025] Figure 5 This is a schematic diagram (four) (three-dimensional view) of the elevator counterweight block based on metal scrap described in Embodiment 1.
[0026] Figure 6 This is a schematic diagram (V) (3D view) of the elevator counterweight based on metal scrap described in Embodiment 1.
[0027] Figure 7 This is a schematic diagram (six) (three-dimensional view) of the elevator counterweight based on metal scrap described in Embodiment 1.
[0028] Figure 8 This is a schematic diagram (seven) (three-dimensional view) of the elevator counterweight based on metal scrap described in Embodiment 1;
[0029] Figure 9 This is a schematic diagram (eighth) (three-dimensional view) of the elevator counterweight block based on metal scrap described in Embodiment 1 of this invention;
[0030] Figure 10 This is a schematic diagram (nine) (three-dimensional view) of the elevator counterweight based on metal scrap described in Embodiment 1.
[0031] Explanation of reference numerals in the attached figures:
[0032] 1. Metal outer shell; 2. Cover plate; 3. Waste metal powder pressure-bearing layer; 4. Waste metal particle layer; 5. Waste metal powder base layer; Detailed Implementation
[0033] 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.
[0034] 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.
[0035] 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.
[0036] like Figure 1 , Figure 2 As shown, this embodiment provides an elevator counterweight based on metal scrap, including a metal shell 1. The upper surface of the metal shell 1 is open, and a cover plate 2 is sealed and fixed to the opening. The interior of the metal shell 1 is densely filled with a waste metal filling layer mixed with waste metal or a composite filling layer mixed with metal scrap and binder.
[0037] In this embodiment, the size of the opening of the metal shell 1 matches the cross-sectional size of the inner cavity of the metal shell 1, which facilitates the compaction of the waste metal filling layer or composite filling layer by the pressure plate.
[0038] In this embodiment, the cover plate 2 is made of metal.
[0039] In some embodiments, the interior of the metal casing 1 is densely filled with a waste metal filling layer mixed with waste metal to meet the enterprise's requirements for pure metal counterweights.
[0040] In some embodiments, the interior of the metal casing 1 is densely filled with a composite filler layer consisting of a mixture of metal scrap and adhesive.
[0041] This utility model provides an elevator counterweight based on metal scrap. It uses a metal outer shell 1, inside which is densely filled with a mixture of scrap metal or a composite filler layer of scrap metal and binder. The scrap metal filler layer can meet the requirements of some elevator manufacturers for pure metal counterweights. The composite filler layer ensures a stronger bond between the scrap metal and the material, while reducing the amount of scrap metal used and lowering costs. The compressive strength of both the scrap metal filler layer and the composite filler layer is ≥40MPa, meeting the elevator industry's requirements for metal counterweight compressive strength. This invention achieves the reuse of metal scrap, resulting in a novel counterweight that eliminates the need for cast iron counterweights, reducing costs and environmental pollution.
[0042] In this embodiment, the outer surfaces of the metal casing 1 and the cover plate 2 are provided with anti-corrosion layers to prevent corrosion of the metal casing 1 and the cover plate 2 and extend their service life.
[0043] In this embodiment, the outer wall thickness of the metal shell 1 is 2-5mm. By selecting the thickness, the strength of the metal shell 1 can be guaranteed, and it is not easy to deform during the preparation and use process.
[0044] The waste metal filling layer of this utility model adopts physical mixing and filling of metal waste; the metal waste includes at least one of waste iron powder, waste iron filings, waste iron sand, waste metal particles, waste metal scraps, waste metal blocks, waste steel bars or waste steel plates.
[0045] The composite filling layer of this utility model, which is a mixture of metal scrap and adhesive, is filled by physical mixing of metal scrap and adhesive; the metal scrap includes at least one of waste iron powder, waste iron filings, waste iron sand, waste metal particles, waste metal scraps, waste metal blocks, waste steel bars or waste steel plates; the adhesive includes epoxy resin or cement.
[0046] The metal outer shell 1 of this utility model is made of steel to ensure mechanical strength.
[0047] The metal shell 1 of this utility model has a cross-section that is rectangular, T-shaped or polygonal; the metal shell 1 is a single piece or multiple metal shell units spliced together, and can be customized according to the specific requirements of the enterprise.
[0048] like Figure 1 , Figure 2 As shown, the metal casing 1 of this embodiment is provided with handles 6 for handling on the front and rear side walls or bottom.
[0049] The cover plate 2 of this utility model is fixed to the filling port by welding, or the cover plate 2 is inserted into the metal shell 1 and then welded to fix it.
[0050] The metal outer shell 1 of this utility model has a convex, concave, flat, or polygonal shape at both ends; the number of handles is 0-4; the cross-section of the handle is rectangular or semi-circular; when the handle is made of metal, the handle is integrally formed or welded to the metal outer shell 1; when the handle is made of plastic, the handle is snapped to the metal outer shell 1.
[0051] Specifically, such as Figure 1 , Figure 2 As shown, the metal casing 1 has a rectangular cross-section. The left and right ends of the metal casing 1 are convex. There are 4 handles, which are located on the front and back sides of the metal casing 1. The cross-section of the handles is rectangular.
[0052] Specifically, such as Figure 3 As shown, the metal casing 1 has a polygonal head on the left end and convex characters on both the right ends, and has no handle.
[0053] Specifically, such as Figure 4 As shown, the metal casing 1 has a rectangular cross-section. The left and right ends of the metal casing 1 have convex tops. There are four handles located on the front and back sides of the metal casing 1. The handles have rectangular cross-sections. Compared to… Figure 2 The cross-section of the bald head is trapezoidal.
[0054] Specifically, such as Figure 5 As shown, the left end of the metal casing 1 has a raised character head, the right end has a polygonal head, and the hand grip is located at the bottom of the metal casing 1.
[0055] Specifically, such as Figure 6 As shown, the metal casing 1 has a rectangular cross-section, and the left and right ends of the metal casing 1 have convex and concave characters respectively, and there is no handle.
[0056] Specifically, such as Figure 7 As shown, the metal casing 1 has a rectangular cross-section. The left and right ends of the metal casing 1 have concave characters and two convex characters, respectively. There is no handle. The cross-section of the convex characters is trapezoidal.
[0057] Specifically, such as Figure 8 As shown, the metal casing 1 has a T-shaped cross-section and no handles.
[0058] Specifically, such as Figure 9 As shown, the metal casing 1 has a rectangular cross-section, with convex heads at both ends. There are four handles, which are located at the bottom of the metal casing 1 and are arranged symmetrically in pairs. The cross-section of the handles is semi-circular.
[0059] Specifically, such as Figure 10As shown, the metal casing 1 has a rectangular cross-section, and the left and right ends of the metal casing 1 are respectively T-shaped convex heads and convex heads, without a handle.
[0060] The choice of the above structure can be made according to the needs of the design and is not limited to the above structure.
[0061] 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 the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. An elevator counterweight based on metal scrap, characterized in that: It includes a metal shell (1), the upper end face of the metal shell (1) is open, and a cover plate (2) is sealed and fixed at the opening. The interior of the metal shell (1) is densely filled with a waste metal filling layer mixed with waste metal or a composite filling layer mixed with metal waste and adhesive.
2. The elevator counterweight based on metal scrap according to claim 1, characterized in that: The outer surface of the metal casing (1) and the outer surface of the cover plate (2) are provided with an anti-corrosion layer.
3. The elevator counterweight based on metal scrap according to claim 1, characterized in that: The metal casing (1) has a wall thickness of 2-5 mm.
4. The elevator counterweight based on metal scrap according to claim 1, characterized in that: The scrap metal filling layer is filled with a physical mixture of scrap metal; the scrap metal includes at least one of the following: scrap iron powder, scrap iron filings, scrap iron sand, scrap metal particles, scrap metal scraps, scrap metal blocks, scrap steel bars or scrap steel plates.
5. The elevator counterweight based on metal scrap according to claim 1, characterized in that: The composite filler layer, which is a mixture of metal scrap and binder, is filled by physical mixing of metal scrap and binder; the metal scrap includes at least one of waste iron powder, waste iron filings, waste iron sand, waste metal particles, waste metal scraps, waste metal blocks, waste steel bars or waste steel plates; the binder includes epoxy resin or cement.
6. The elevator counterweight based on metal scrap according to claim 1, characterized in that: The metal casing (1) is made of steel.
7. The elevator counterweight based on metal scrap according to claim 1, characterized in that: The metal shell (1) has a cross-section that is rectangular, T-shaped or polygonal; the metal shell (1) is a single piece or multiple metal shell units spliced together.
8. The elevator counterweight based on metal scrap according to claim 1, characterized in that: The metal casing (1) has handles (6) on the front and rear side walls or bottom for handling.
9. The elevator counterweight based on metal scrap according to claim 1, characterized in that: The cover plate (2) is fixed to the filling port by welding, or the cover plate (2) is inserted into the metal shell (1) and then welded to fix it.
10. The elevator counterweight based on metal scrap according to claim 1, characterized in that: The metal shell (1) has a raised, recessed, flat or polygonal shape at both ends; the number of buckles is 0-4; the cross-section of the buckle is either rectangular or semi-circular; when the buckle is made of metal, the buckle is integrally formed or welded to the metal shell (1); when the buckle is made of plastic, the buckle is snapped to the metal shell (1).