Lift counterweight block with adjustable weight

Abstract

The utility model provides a weight-adjustable elevator counterweight block which comprises a main shell, a plurality of counterweight small plates matched with the main shell are arranged in the main shell, and the counterweight small plates are placed in a stacked mode. The top of the main shell is open, the main shell is connected with a top cover through first screws, a plurality of second screws which are evenly distributed are assembled on the top cover, and the bottom ends of the second screws extend into the main shell. According to the counterweight device, different numbers of counterweight small plates can be placed according to requirements to adjust the weight, so that counterweight blocks of various weight specifications do not need to be additionally customized, counterweight devices of different weights can be flexibly matched, and the cost is reduced.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of elevators, and in particular to an elevator counterweight with adjustable weight. Background Art

[0002] The counterweight device is located in the shaft and is connected to the car through the traction rope and the traction wheel. During the operation of the elevator, the counterweight device slides on the counterweight guide rail through the counterweight guide shoe to play a balancing role. The weight of the counterweight device comes from the counterweight block. The number of counterweight blocks installed = (car weight + rated load × 0.5-counterweight frame weight) / weight of each counterweight block. The weight of the counterweight block is fixed and cannot be adjusted. In order to make the overall weight of the counterweight device accurate, it is sometimes necessary to match it with counterweight blocks of other specifications. It is necessary to customize counterweight blocks of multiple weight specifications, and the overall cost is relatively high. Utility Model Content

[0003] 1. Technical problems to be solved by the utility model:

[0004] The utility model provides an elevator counterweight with adjustable weight, which is used to solve the technical problems existing in the above-mentioned background technology.

[0005] 2. Technical solution:

[0006] To achieve the above object, the technical solution provided by the utility model is: a weight-adjustable elevator counterweight block, comprising a main shell, wherein a counterweight small plate matching the main shell is arranged in the main shell, wherein the counterweight small plates are in a plurality and are placed in a stacked shape;

[0007] The top of the main shell is open and is connected to a top cover via a first screw. The top cover is equipped with a plurality of evenly distributed second screws, and the bottom ends of the second screws extend into the interior of the main shell.

[0008] Furthermore, a first embedded groove and a second embedded groove are formed on the top of the top cover, the first screw is assembled in the first embedded groove, and the second screw is assembled in the second embedded groove.

[0009] Furthermore, a pressing plate is fixedly mounted on the bottom end of the second screw.

[0010] Furthermore, a connecting column is fixedly installed at the bottom of the main shell. The connecting column has the same radius as the second embedded groove, and a limiting rod is arranged at the bottom. The cross-section of the limiting rod is rectangular and matches the limiting groove opened at the top of the second screw.

[0011] Furthermore, a slide groove is provided at the bottom end of the connecting column, the limiting rod is slidably installed in the slide groove, and the top end is connected to the top of the slide groove through a spring.

[0012] 3. Beneficial effects:

[0013] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects: different numbers of small counterweight plates can be placed according to needs to adjust the weight, so there is no need to customize counterweight blocks of various weight specifications, and counterweight devices of different weights can be flexibly matched, thereby reducing costs;

[0014] When two counterweights are stacked, the limit rod of the upper counterweight will be inserted into the limit groove of the lower counterweight, thereby limiting the rotation of the second screw to prevent it from loosening after vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the cutaway structure of the utility model;

[0017] Figure 3 For the utility model Figure 2 The enlarged structural diagram at A in the middle;

[0018] Figure 4 For the utility model Figure 2 Enlarged structural diagram at B in the middle.

[0019] Reference numerals:

[0020] 1. Main shell; 101. First embedded groove; 102. Second embedded groove; 2. Counterweight plate; 3. Top cover; 4. First screw; 5. Second screw; 501. Limiting groove; 6. Pressing sheet; 7. Connecting column; 701. Slide groove; 8. Limiting rod; 9. Spring. DETAILED DESCRIPTION

[0021] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0025] See attached Figure 1-4 , a weight-adjustable elevator counterweight block, comprising a main housing 1, in which a matching counterweight small plate 2 is arranged, and the number of the counterweight small plates 2 is several and they are stacked;

[0026] The main housing 1 is open at the top and is connected to a top cover 3 via a first screw 4 . The top cover 3 is equipped with a plurality of evenly distributed second screws 5 , and the bottom ends of the second screws 5 extend into the interior of the main housing 1 .

[0027] In this embodiment, by placing different numbers of counterweight plates 2 in the main housing 1, the overall weight of the device can be adjusted, so there is no need to customize counterweight blocks of various weight specifications, and counterweight devices of different weights can be flexibly matched, thereby reducing costs;

[0028] After the top cover 3 is mounted on the top of the main housing 1 by means of the first screw 4, the second screw 5 is rotated to make its bottom abut against the top of the uppermost counterweight plate 2 to limit it, and the installation of the device is completed.

[0029] A first embedded groove 101 and a second embedded groove 102 are formed on the top of the top cover 3 . The first screw 4 is assembled in the first embedded groove 101 , and the second screw 5 is assembled in the second embedded groove 102 .

[0030] In this embodiment, the first screw 4 and the second screw 5 are respectively arranged in the first embedded groove 101 and the second embedded groove 102 to level the top of the top cover 3 and avoid large gaps between the counterweights when they are stacked.

[0031] A pressing sheet 6 is fixedly mounted on the bottom end of the second screw 5 to increase the limiting area of ​​the counterweight small plate 2 and improve the limiting effect.

[0032] A connecting column 7 is fixedly installed at the bottom of the main shell 1. The connecting column 7 has the same radius as the second embedded groove 102, and a limiting rod 8 is set at the bottom. The cross-section of the limiting rod 8 is rectangular and matches the limiting groove 501 opened at the top of the second screw 5.

[0033] In this embodiment, when two counterweight blocks are stacked, the connecting column 7 at the bottom of the upper counterweight block will be inserted into the second embedded groove 102 at the lower side, thereby improving the stability of the entire counterweight device. At the same time, the limiting rod 8 will be inserted into the limiting groove 501 to limit the rotation of the second screw 5 to prevent it from loosening after vibration.

[0034] It should be noted that a groove matching the connecting column 7 needs to be provided at the bottom of the counterweight frame used in the present device, and a limiting member matching the limiting groove 501 needs to be provided at the bottom of the pressure plate.

[0035] A slide groove 701 is provided at the bottom end of the connecting column 7 , and the limiting rod 8 is slidably installed in the slide groove 701 , and the top end is connected to the top of the slide groove 701 through a spring 9 .

[0036] In this embodiment, when the second screw 5 limits different numbers of counterweight plates 2, the position of the limiting groove 501 in the second embedded groove 102 is different. The limiting rod 8 slides in the slide groove 701 and cooperates with the elastic force of the spring 9 to ensure that the limiting rod 8 can always be inserted in the limiting groove 501 to limit the second screw 5.

[0037] The above-described embodiments only express a certain implementation method of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the patent of the utility model shall be based on the attached claims.

[0038] It should be noted that the above contents belong to the technical cognition scope of the inventor. Since the technical contents in this field are vast and too complicated, the above contents of this application do not necessarily constitute prior art.

Claims

1. An elevator counterweight with adjustable weight, characterized in that: It comprises a main shell (1), wherein a small counterweight plate (2) matching the main shell (1) is arranged inside the main shell (1), and the small counterweight plates (2) are multiple in number and arranged in a stacked shape; The main housing (1) is open at the top and is connected to a top cover (3) via a first screw (4). The top cover (3) is equipped with a plurality of evenly distributed second screws (5), and the bottom ends of the second screws (5) extend into the interior of the main housing (1).

2. The weight-adjustable elevator counterweight according to claim 1, characterized in that: The top of the top cover (3) is provided with a first embedded groove (101) and a second embedded groove (102); the first screw (4) is assembled in the first embedded groove (101), and the second screw (5) is assembled in the second embedded groove (102).

3. The weight-adjustable elevator counterweight according to claim 1, characterized in that: A pressing sheet (6) is fixedly mounted on the bottom end of the second screw (5).

4. The weight-adjustable elevator counterweight according to claim 2, characterized in that: A connecting column (7) is fixedly mounted on the bottom of the main housing (1); the connecting column (7) has the same radius as the second embedded groove (102), and a limiting rod (8) is arranged at the bottom; the limiting rod (8) has a rectangular cross section and matches the limiting groove (501) provided on the top of the second screw (5).

5. The weight-adjustable elevator counterweight according to claim 4, characterized in that: The bottom end of the connecting column (7) is provided with a slide groove (701), the limiting rod (8) is slidably installed in the slide groove (701), and the top end is connected to the top of the slide groove (701) via a spring (9).

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