Counterweight structure of high-traction-ratio large-load elevator

Abstract

The utility model discloses a kind of high traction ratio big load elevator counterweight structures, including counterweight frame and counterweight block, the counterweight frame includes upper beam, lower beam, two side straight beams and at least one intermediate straight beam;The installation portion for installing the intermediate straight beam is equipped on the upper beam and lower beam;Two ends of the intermediate straight beam are directly fixedly connected on the installation portion of the upper beam and lower beam, to form counterweight frame for installing multiple rows of counterweight blocks with the upper beam, lower beam and two side straight beams together;The counterweight block is arranged into at least two rows along the width direction of counterweight frame;The application has the advantages of simplified structure, high space utilization, easy to install and maintain.

Description

Technical Field

[0001] This utility model belongs to the field of elevator technology, and in particular relates to a counterweight structure for a high traction ratio, large load elevator. Background Technology

[0002] With the development of high-rise buildings and large public facilities, the requirements for elevator load capacity are increasing. Heavy-duty elevators require heavier counterweights to balance the car load. Traditional counterweight structures face the following main problems when dealing with heavy load demands: Excessive weight of single counterweight blocks: In order to achieve the required weight, the single counterweight block is huge in size and weight, far exceeding the limit of manual handling (usually limited to around 50kg), which brings great difficulties to on-site installation, replacement and maintenance, poses safety hazards and is inefficient.

[0003] Multi-row counterweight frames have complex structures and low space utilization: The traditional way to implement multi-row counterweight blocks is to add an extra upper beam below the upper beam of the counterweight frame to install the middle counterweight straight beam. This structure: Occupying vertical space: The addition of the secondary upper beam significantly increases the overall height of the counterweight frame, which, within the limited shaft space, squeezes the effective stroke or increases the shaft height requirement.

[0004] Complex structure and high cost: The addition of extra beam structures (sub-upper beams) and their connecting parts leads to structural complexity, high material consumption, complicated manufacturing and assembly processes, and increased costs.

[0005] Material issue for the intermediate straight beam: Traditional multi-row counterweight frames often use I-beams for the intermediate straight beam. I-beams are relatively expensive and heavy.

[0006] Summary of existing technological pain points: Heavy loads are difficult to move (due to manpower limitations).

[0007] Traditional multi-row counterweight frame structures are complex, have increased height, and low space utilization.

[0008] The intermediate straight beam (I-beam) is costly, heavy, and inconvenient to process and install. Utility Model Content

[0009] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0010] In order to overcome the shortcomings of the prior art, this utility model provides a counterweight structure for a high traction ratio and large load capacity elevator.

[0011] To achieve the above objectives, this utility model adopts the following technical solution: a counterweight structure for a high traction ratio, large load capacity elevator, comprising a counterweight frame and counterweight blocks. The counterweight frame includes an upper beam, a lower beam, two side straight beams, and at least one intermediate straight beam. The upper and lower beams are provided with mounting portions for installing the intermediate straight beam. The two ends of the intermediate straight beam are directly fixedly connected to the mounting portions of the upper and lower beams, thereby forming a counterweight frame for installing multiple rows of counterweight blocks together with the upper beam, lower beam, and two side straight beams. The counterweight blocks are arranged in at least two rows along the width direction of the counterweight frame. The intermediate straight beam includes two C-shaped steel plates connected at their backs, so that mounting grooves corresponding to the counterweight blocks are formed on both sides of the intermediate straight beam.

[0012] Furthermore, the high traction ratio, high load capacity elevator counterweight structure also includes a first structural reinforcement member, which is disposed on the upper beam. The first structural reinforcement member includes a counterweight wheel and an anti-derailment device. The upper beam includes two first steel plates, which form the main frame of the upper beam.

[0013] Furthermore, the counterweight structure of the high traction ratio, high load capacity elevator also includes a second structural reinforcement member, which is located on the lower beam. The second structural reinforcement member is a buffer impact block mounting device. The lower beam includes two second steel plates, which form the main frame of the lower beam.

[0014] Furthermore, the weight of the counterweight is ≤50kg.

[0015] Furthermore, the counterweight structure of a high traction ratio, high load capacity elevator also includes counterweight guide rails, which are adapted to the counterweight structure, and the spacing of the counterweight guide rails is greater than the spacing of the guide rails in a standard single-row counterweight structure.

[0016] Furthermore, the groove of the C-shaped steel plate corresponds to the head size of the counterweight.

[0017] The advantages of this utility model are: it provides a high traction ratio, large load elevator counterweight structure with simplified structure, high space utilization, and easy installation and maintenance. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0019] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0020] In the attached diagram: Figure 1 This is a structural schematic diagram of a high traction ratio, high load capacity elevator counterweight structure according to the present invention.

[0021] Figure 2 This is a schematic diagram of the counterweight frame of a high traction ratio, high load capacity elevator counterweight structure according to the present invention.

[0022] The meanings of the reference numerals in the figure are as follows: 1. Top beam; 2. Bottom beam; 3. Side straight beam; 4. Middle straight beam; 5. Counterweight; 6. Counterweight roller; 7. Anti-derailment device; 8. Buffer impact block installation device. Detailed Implementation

[0023] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0024] It should also be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0025] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0026] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0027] The names of messages or information exchanged between multiple devices in the embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.

[0028] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] like Figure 1-2As shown, a counterweight structure for a high traction ratio, high load capacity elevator includes a counterweight frame and counterweight blocks 5. The counterweight frame includes an upper beam 1, a lower beam 2, two side straight beams 3, and at least one intermediate straight beam 4. The upper beam 1 and the lower beam 2 are provided with mounting parts for the intermediate straight beam 4 at the center position in the width direction. The two ends of the intermediate straight beam 4 are directly fixed to the mounting parts of the upper beam 1 and the lower beam 2, respectively, thus forming a counterweight frame for mounting multiple rows of counterweight blocks 5 together with the upper beam 1, the lower beam 2, and the two side straight beams 3. The counterweight blocks 5 are arranged in at least two rows along the width direction of the counterweight frame.

[0030] The traditional secondary upper beam design is abandoned. The counterweight frame consists of only a single upper beam 1, a lower beam 2, and two (or more, depending on the number of rows) side straight beams 3. The key innovation lies in the fact that at least one central straight beam 4 (used to separate multiple rows of counterweight blocks 5) is directly and centrally installed and fixed between the main structure of the upper beam 1 and the lower beam 2. This direct connection method of "main beam - central straight beam - main beam" completely eliminates the need for the secondary upper beam 1, thereby significantly reducing the overall height of the counterweight frame and improving space utilization.

[0031] Furthermore, the intermediate straight beam 4 is formed by bending two steel plates into a C-shaped section and then combining them back to back. The combined intermediate straight beam 4 forms mounting grooves on both sides to accommodate the head of the counterweight 5. The bending angle and size design of the C-shaped steel plates make the depth and width of the grooves formed after the back-to-back combination match the head size of the counterweight 5.

[0032] The central straight beam 4, which forms the key to the multi-row layout, is made of steel plate that has been simply bent into a C-shaped section. During installation, two identical C-shaped steel plates are combined "back to back" (i.e., with opposite opening directions), naturally forming mounting grooves on both sides of the assembly to accommodate and limit the heads of the counterweights 5. This design completely replaces the traditional I-beams and has significant advantages such as light weight, low cost, simple processing, and convenient installation.

[0033] Furthermore, the high traction ratio and large load capacity elevator counterweight structure also includes a first structural reinforcement component, which is located on the upper beam 1. The first structural reinforcement component includes a counterweight wheel 6 and an anti-derailment device 7. The upper beam 1 includes two first steel plates, which form the main frame of the upper beam 1.

[0034] The main body of the upper beam 1 is composed of two steel plates forming a basic frame. The counterweight rollers 6 and their matching anti-derailment devices 7 not only realize their guiding and anti-derailment functions, but also directly serve as structural reinforcements of the upper beam 1. Together with other possible reinforcements of the upper beam 1, they form a robust upper beam 1 structure, achieving the integration of function and structure.

[0035] Furthermore, the counterweight structure of the high traction ratio, high load capacity elevator also includes a second structural reinforcement component, which is located on the lower beam 2. The second structural reinforcement component is a buffer impact block mounting device 8. The lower beam 2 includes two second steel plates, which form the main frame of the lower beam 2.

[0036] The main body of the lower beam 2 is also composed of two steel plates forming a basic frame. The device used to install the buffer impact pier not only provides an installation interface, but also directly serves as a structural reinforcement of the lower beam 2. Together with other possible reinforcements of the lower beam 2, it forms a robust lower beam 2 structure, achieving integration of function and structure.

[0037] Furthermore, the weight of counterweight 5 is ≤50kg.

[0038] The counterweight structure of a high traction ratio, high load capacity elevator also includes counterweight guide rails. The counterweight guide rails are adapted to the counterweight structure, and the spacing of the counterweight guide rails is greater than that of the guide rails in a standard single-row counterweight structure.

[0039] By increasing the spacing between the counterweight guide rails, a spatial basis is provided for arranging multiple rows (at least two rows, preferably two or three rows) of counterweight blocks 5 in the width direction of the counterweight frame. The weight of each row of counterweight blocks 5 is significantly reduced, ensuring that the weight of a single block is within the range that can be handled manually.

[0040] The counterweight structure provided by this utility model has the following significant advantages and technical effects: Manually Handleable: The multi-row layout effectively reduces the weight of a single counterweight 5, allowing it to be safely and conveniently moved, installed, and replaced on-site by manpower, greatly improving installation and maintenance efficiency and reducing safety risks.

[0041] Significantly reduced structural height: By eliminating the secondary upper beam 1 and directly connecting the middle straight beam 4 to the main upper / lower beam 2, the overall height of the elevator frame is effectively reduced (by about 15%-30% compared to the traditional multi-row structure), saving valuable vertical space in the shaft, improving space utilization, and facilitating the optimization of the overall elevator layout.

[0042] Simplified structure and good rigidity: The frame structure is simple (main upper beam 1, main lower beam 2, side straight beams 3, and central straight beam). Upper beam 1 and lower beam 2 utilize functional components (counterweight rollers 6 and buffer impact devices) as reinforcements, achieving multi-functional integration, which simplifies the structure while ensuring overall rigidity and strength.

[0043] Easy to manufacture and install, and lower cost: The middle straight beam 4 uses a simple C-shaped bent steel plate back-to-back combination to replace the I-beam, reducing material costs (steel plate vs. I-beam) and manufacturing costs.

[0044] The overall number of components is reduced (no sub-beams), connection points are simplified, and the assembly process is simpler and more efficient.

[0045] The reduced weight also lowers transportation and hoisting costs.

[0046] Space optimization: The reduced height space can be used to increase elevator travel or reduce shaft height requirements, which has practical engineering value.

[0047] High reliability: The structure is reasonably designed, and the key parts (upper beam 1 and lower beam 2) are designed in an integrated manner to ensure strength and rigidity. The groove formed by the middle straight beam 4 can effectively fix the counterweight.

[0048] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in the embodiments of this disclosure is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A counterweight structure for a high traction ratio, high load capacity elevator, characterized in that: The system includes a counterweight frame and counterweight blocks. The counterweight frame includes an upper beam, a lower beam, two side straight beams, and at least one intermediate straight beam. The upper and lower beams are provided with mounting parts for installing the intermediate straight beam. The two ends of the intermediate straight beam are directly fixed to the mounting parts of the upper and lower beams, thus forming a counterweight frame for installing multiple rows of counterweight blocks together with the upper beam, lower beam, and two side straight beams. The counterweight blocks are arranged in at least two rows along the width of the counterweight frame. The intermediate straight beam includes two C-shaped steel plates connected at their backs, so that mounting grooves corresponding to the counterweight blocks are formed on both sides of the intermediate straight beam.

2. The high traction ratio, high load capacity elevator counterweight structure according to claim 1, characterized in that: It also includes a first structural reinforcement member, which is disposed on the upper beam. The first structural reinforcement member includes a counterweight wheel and an anti-derailment device. The upper beam includes two first steel plates, which form the main frame of the upper beam.

3. The high traction ratio, high load capacity elevator counterweight structure according to claim 1, characterized in that: It also includes a second structural reinforcement member, which is disposed on the lower beam. The second structural reinforcement member is a buffer impact block mounting device. The lower beam includes two second steel plates, which form the main frame of the lower beam.

4. The high traction ratio, large load capacity elevator counterweight structure according to claim 1, characterized in that: The weight of the counterweight is ≤50kg.

5. The high traction ratio, high load capacity elevator counterweight structure according to claim 1, characterized in that: It also includes counterweight guide rails, which are adapted to the counterweight structure, and the spacing between the counterweight guide rails is greater than the spacing between the guide rails of a standard single-row counterweight structure.

6. The high traction ratio, large load capacity elevator counterweight structure according to claim 1, characterized in that: The groove of the C-shaped steel plate corresponds to the head size of the counterweight.

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