High-strength elevator balancing weight convenient to install

By combining the cover plate with rubber pads, embedded grooves, and protruding nail blocks, the problem of unstable center of gravity and swaying during the installation of traditional elevator counterweights is solved, resulting in a high-strength and stable elevator counterweight that improves the smoothness and safety of elevator operation.

CN223973659UActive Publication Date: 2026-03-06LINAN FUDISI ELECTRICAL APPLIANCE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-30
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Traditional elevator counterweights have problems such as gaps, unstable center of gravity, and swaying during manufacturing and installation, which affect the smoothness and safety of elevator operation.

Method used

The design incorporates a cover plate, rubber pad, embedded groove, and protruding nail block to enhance connection strength and stability; the fitting of protruding grooves and recesses, along with venting holes, ensures uniformity of the internal structure; and a ceramic coating improves corrosion resistance.

Benefits of technology

It improves the installation stability and overall strength of the elevator counterweight, reduces shaking, enhances the sealing effect, and extends service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a high-strength elevator balancing weight convenient to install, and relates to the technical field of elevator balancing weights. The device comprises a shell, a cover groove is formed in the inner top of the shell, a cover plate is inserted into the cover groove, a rubber pad is fixedly connected to the top of the cover plate, an embedded groove is formed in the bottom of the shell, one end of the cover plate is embedded into the embedded groove, and the other end of the cover plate is fixedly connected with the rubber pad. And a plurality of convex nail blocks matched with the rubber pads are uniformly and fixedly connected to the interiors of the embedded grooves. Through cooperative use of the cover plates, the rubber pads, the embedded grooves and the convex nail blocks, the adjacent cover plates push the rubber pads to be embedded into the adjacent embedded grooves and abut against the convex nail blocks when a plurality of shells are hoisted to be oppositely stacked with the cover plates, so that the cover plates are stably embedded into the embedded grooves, and the stability of the shells is improved. The stability of the balancing weight during installation is effectively improved, and shaking is reduced.
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Description

Technical Field

[0001] This application relates to the field of elevator counterweight technology, and in particular to a high-strength elevator counterweight that is easy to install. Background Technology

[0002] Elevator counterweights are an indispensable component of elevator systems. Their main function is to balance the weight of the elevator car, reducing the load on the motor and thus improving the elevator's operating efficiency and safety. Traditional elevator counterweights are typically made of a metal shell filled with heavy materials such as cement and iron filings. While this design fulfills its basic function, it also has some structural limitations, particularly regarding potential problems during installation and use, such as insufficient stability and inconvenient installation. With the increasing prevalence of high-rise buildings and the growing frequency of elevator use, higher demands are being placed on the strength, stability, and ease of installation of elevator counterweights.

[0003] Currently, elevator counterweights are primarily manufactured by filling a metal shell with cement or other heavy materials. The specific process involves injecting cement slurry into the shell, which then solidifies to form the counterweight. However, this process presents several problems in practical applications. First, when the internal space of the shell is large, the cement can easily create voids between itself and the shell's inner wall during solidification, resulting in an uneven internal structure of the counterweight. Second, due to the limited fluidity of cement, it is difficult to completely fill every corner of the shell during the filling process, further exacerbating the formation of internal voids. Furthermore, existing counterweights are typically installed by stacking, but due to inconsistent internal center of gravity positions, the connection between adjacent counterweights is not stable enough, easily causing swaying during elevator operation and affecting the elevator's stability and safety.

[0004] Existing elevator counterweights present significant problems in their manufacturing and installation. Firstly, gaps often exist between the cement and the inner wall of the elevator casing. These gaps become weak points within the counterweight, similar to a hollow wall. Consequently, when counterweights are stacked, the internal center of gravity of adjacent counterweights is often inconsistent, leading to overall instability and swaying. This affects the elevator's operational stability, causes additional wear on the elevator's mechanical structure, and reduces its safety. Utility Model Content

[0005] The purpose of this application is to address the problem that gaps often exist between the cement and the inner wall of the elevator shell, which can easily lead to inconsistent positions of the internal center of gravity of two adjacent counterweights, causing swaying, affecting the smooth operation of the elevator, causing additional wear on the elevator's mechanical structure, and reducing elevator safety. This application provides a high-strength elevator counterweight that is easy to install.

[0006] To achieve the above objectives, this application specifically adopts the following technical solution:

[0007] A high-strength elevator counterweight that is easy to install includes a housing. The top of the housing has a cover groove, and a cover plate is inserted into the cover groove. A rubber pad is fixedly connected to the top of the cover plate. The bottom of the housing has an embedded groove, and one end of the cover plate is embedded into the embedded groove. A plurality of protruding nail blocks adapted to the rubber pad are evenly fixedly connected inside the embedded groove.

[0008] By adopting the above technical solution, and by setting up the cover plate in conjunction with the rubber pad, the inner groove, and the protruding nail block, it is convenient to stack multiple shells with the cover plate in opposite directions during hoisting. This allows the adjacent cover plates to push the rubber pad into the adjacent inner groove and to form abutment with the protruding nail block, so that the cover plate is stably embedded in the inner groove. This effectively improves the stability of the counterweight during installation and reduces shaking.

[0009] Furthermore, the bottom of the cover plate is provided with a protrusion, the bottom of the cover groove is provided with a recess, and a rubber ring is fixedly connected inside the recess, and the protrusion and the recess are interlocked.

[0010] By adopting the above technical solution, the connection strength between the cover plate and the shell is further enhanced by setting the interlocking design of the convex groove and the groove. The elastic properties of the rubber ring are used to fill the inside of the convex groove and the groove, thereby improving the sealing effect between the shell and the cover plate and reducing the entry of water vapor into the cover plate, which affects the internal structural strength of the cover plate.

[0011] Furthermore, one end of the cover groove is symmetrically and evenly provided with multiple air holes.

[0012] By adopting the above technical solution and using the shell and vents in combination, it is easy to use the vents to expel the air inside the shell, reduce the voids generated during the concrete solidification process, ensure that the internal structure of the counterweight is uniform and dense, and improve the strength and stability of the counterweight.

[0013] Furthermore, the interior of the housing is symmetrically and evenly provided with multiple T-shaped slots, and the interior of the housing is uniformly provided with multiple layered plates. One end of each layered plate is symmetrically and fixedly connected with a plug, which is embedded in the interior of the T-shaped slot.

[0014] By adopting the above technical solution, and by using the combination of layered plates, plugs, and T-shaped slots, it is easy to divide the internal space of the shell into layers, so that the concrete can be evenly distributed during filling, thereby improving the overall stability of the counterweight.

[0015] Furthermore, the inner bottom of the housing and the bottom of the cover plate are uniformly and fixedly connected with multiple protruding strips.

[0016] By adopting the above technical solution, and by setting the convex strips in conjunction with the shell and cover plate, the contact area between the concrete and the shell and cover plate is effectively increased, thereby improving the connection strength between the concrete and the shell and cover plate.

[0017] Furthermore, both the housing and the cover are coated with a ceramic coating.

[0018] By adopting the above technical solution and setting a ceramic coating, the corrosion resistance of the counterweight is effectively improved, and the service life and structural strength of the counterweight are extended.

[0019] In summary, this application includes at least one of the following beneficial effects:

[0020] 1. By setting up the cover plate in conjunction with the rubber pad, the inner groove, and the protruding nail block, when multiple shells are hoisted and stacked relative to the cover plate, the adjacent cover plates push the rubber pad into the adjacent inner groove and form abutment with the protruding nail block, so that the cover plate is firmly embedded in the inner groove, which effectively improves the stability of the counterweight during installation and reduces shaking.

[0021] 2. The interlocking design of the convex and concave grooves further enhances the connection strength between the cover plate and the housing. The elastic properties of the rubber ring are used to fill the inside of the convex and concave grooves, thereby improving the sealing effect between the housing and the cover plate and reducing the entry of water vapor into the cover plate, which would affect the internal structural strength of the cover plate. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the main body of the device in this application.

[0023] Figure 2 This is an exploded view of the main body of the device in this application.

[0024] Figure 3 This is a schematic diagram of the bottom structure of the cover plate in this application.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Housing; 2. Cover groove; 3. Cover plate; 4. Rubber pad; 5. Embedded groove; 6. Protruding nail block; 7. Protruding groove; 8. Groove; 9. Rubber ring; 10. Air hole; 11. T-shaped slot; 12. Layered board; 13. Plug; 14. Protruding strip block. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1 —3 provides further detailed description of this application.

[0028] This application discloses a high-strength elevator counterweight that is easy to install.

[0029] Reference Figure 1 - Figure 3 A high-strength elevator counterweight that is easy to install includes a housing 1. A cover groove 2 is provided on the top inner part of the housing 1. A cover plate 3 is inserted into the cover groove 2. A rubber pad 4 is fixedly connected to the top of the cover plate 3. An embedded groove 5 is provided on the bottom of the housing 1. One end of the cover plate 3 is embedded into the inside of the embedded groove 5. A plurality of protruding nail blocks 6 that are adapted to the rubber pad 4 are evenly fixedly connected inside the embedded groove 5.

[0030] In use, firstly, concrete or other heavy materials are injected into the interior of the housing 1. After the concrete has solidified, the cover plate 3 is inserted into the cover groove 2. Next, multiple housings 1 and cover plates 3 are hoisted and stacked on the elevator mounting frame. Simultaneously, the upper housing 1 moves the inner groove 5 to wrap around the lower cover plate 3, thus embedding the lower cover plate 3 into the inner groove 5. The inner groove 5 then forms abutment and fixation between the cover plate 3 and the housing 1. At the same time, the rubber pad 4 is pushed to abut against the protruding nail block 6, ensuring that the cover plate 3 is firmly embedded in the inner groove 5. This effectively improves the stability of the counterweight during installation and reduces shaking.

[0031] Reference Figure 1 - Figure 3 The bottom of the cover plate 3 is provided with a protrusion 7, and the bottom of the cover groove 2 is provided with a groove 8. A rubber ring 9 is fixedly connected inside the groove 8, and the protrusion 7 and the groove 8 are interlocked.

[0032] When in use, when the cover plate 3 is inserted into the cover groove 2, the protrusion 7 will fit tightly with the rubber ring 9 in the groove 8, forming an additional buffer and fixing effect, preventing the counterweight from loosening or shifting during elevator operation. The elastic properties of the rubber ring 9 are used to fill the interior of the protrusion 7 and the groove 8, thereby improving the sealing effect between the housing 1 and the cover plate 3, reducing the entry of water vapor into the interior of the cover plate 3, and affecting the internal structural strength of the cover plate 3.

[0033] Reference Figure 1 - Figure 3 Multiple air holes 10 are symmetrically and evenly opened at one end of the cover groove 2.

[0034] When in use, the design of the vent 10 helps to expel internal air when concrete is injected into the shell 1, reducing the voids generated during the concrete solidification process, ensuring that the internal structure of the counterweight is uniform and dense, and further improving the strength and stability of the counterweight.

[0035] Reference Figure 1 and Figure 2 The interior of the housing 1 is symmetrically and evenly provided with multiple T-shaped slots 11, and multiple layered plates 12 are evenly installed inside the housing 1. One end of each layered plate 12 is symmetrically and fixedly connected with a plug 13, which is embedded inside the T-shaped slot 11.

[0036] During use, before filling with concrete, the layered plate 12 is inserted into the T-shaped slot 11 via the plug 13 to divide the internal space of the housing 1 into layers. This design ensures that the concrete is evenly distributed during filling, avoiding the problem of center of gravity shift caused by uneven filling, thereby improving the overall stability of the counterweight.

[0037] Reference Figure 1 - Figure 3 Multiple protruding strips 14 are evenly fixedly connected to the bottom of the inner bottom of the shell 1 and the bottom of the cover plate 3.

[0038] In use, the protruding strip 14 increases the friction between the bottom of the inner shell 1 and the bottom of the cover plate 3, and at the same time increases the contact area between the concrete and the shell 1 and the cover plate 3, so as to improve the connection strength between the concrete and the shell 1 and the cover plate 3, and further enhance the stability of the overall structure.

[0039] Reference Figure 1 and Figure 2 Both the shell 1 and the cover plate 3 are coated with a ceramic coating.

[0040] When in use, applying a ceramic coating to the surfaces of the housing 1 and the cover plate 3 can effectively improve the wear resistance and corrosion resistance of the counterweight and extend its service life.

[0041] The implementation principle of a high-strength elevator counterweight block that is easy to install in this embodiment is as follows: First, before filling with concrete, the layered plate 12 is inserted into the T-shaped slot 11 through the plug 13 to divide the internal space of the shell 1 into layers. Then, concrete or other heavy materials are injected into the interior of the shell 1. After the concrete solidifies, the cover plate 3 is inserted into the cover groove 2. At the same time, the protrusion 7 will be tightly fitted with the rubber ring 9 in the groove 8, and the rubber ring 9 will be squeezed to fill the interior of the protrusion 7 and the groove 8, thereby improving the sealing effect between the shell 1 and the cover plate 3.

[0042] Then, multiple housings 1 and cover plates 3 are hoisted and stacked on the elevator mounting frame. Simultaneously, the upper housing 1 moves the inner groove 5 to enclose the lower cover plate 3, causing the lower cover plate 3 to embed into the inner groove 5. The inner groove 5 then secures the cover plate 3 to the housing 1 through contact. At the same time, the rubber pad 4 is pushed to contact the protruding nail block 6, ensuring the cover plate 3 is firmly embedded in the inner groove 5.

Claims

1. A high strength elevator counterweight for easy installation comprising a housing (1) characterized in that: The inner top of the shell (1) is provided with a cover groove (2), the inside of the cover groove (2) is provided with a cover plate (3), the top of the cover plate (3) is fixedly connected with a rubber pad (4), the bottom of the shell (1) is provided with an embedded groove (5), one end of the cover plate (3) is embedded into the inside of the embedded groove (5), and the inside of the embedded groove (5) is uniformly fixedly connected with a plurality of lug blocks (6) matched with the rubber pad (4).

2. A high-strength elevator counterweight that is easy to install according to claim 1, characterized in that: The bottom of the cover plate (3) is provided with a convex groove (7), the inner bottom of the cover groove (2) is provided with a concave groove (8), the inside of the concave groove (8) is fixedly connected with a rubber ring (9), and the convex groove (7) and the concave groove (8) are mutually embedded.

3. A high-strength elevator counterweight that is easy to install according to claim 1, characterized in that: A plurality of air holes (10) are symmetrically and uniformly arranged at one end of the cover groove (2).

4. A high-strength elevator counterweight that is easy to install according to claim 1, characterized in that: A plurality of T-shaped clamping grooves (11) are symmetrically and uniformly arranged in the inside of the shell (1), and a plurality of layered plates (12) are uniformly arranged in the inside of the shell (1), one end of the layered plate (12) is fixedly connected with a plug (13), and the plug (13) is embedded into the inside of the T-shaped clamping groove (11).

5. A high-strength elevator counterweight that is easy to install according to claim 1, characterized in that: A plurality of convex strip blocks (14) are uniformly fixedly connected to the inner bottom of the shell (1) and the bottom of the cover plate (3).

6. A high-strength elevator counterweight that is easy to install according to claim 1, characterized in that: The surfaces of the shell (1) and the cover plate (3) are coated with a ceramic coating.