Telescopic counterweight device

Abstract

The utility model belongs to the technical field of elevator design, and particularly relates to a telescopic counterweight device which comprises a counterweight housing, a counterweight seat and a guide wheel, the counterweight seat is movably mounted at the bottom of an inner cavity of the counterweight housing, the guide wheel is rotatably arranged at the top of the counterweight housing, transverse frames are arranged at the top and the bottom of the counterweight housing, and vertical frames are arranged on two sides of the counterweight housing. Transverse connecting frames are arranged at the two ends of the transverse frame, transverse inserting grooves are formed in the positions, corresponding to the transverse connecting frames, of the two ends of the transverse frame, the transverse connecting frames are connected with the transverse inserting grooves in an inserted mode, vertical connecting frames are arranged in the middle of the vertical frame, and vertical inserting grooves are formed in the positions, corresponding to the vertical connecting frames, of the middle of the vertical frame. The vertical connecting frame is connected with the vertical inserting groove in an inserting manner; according to the counterweight housing, the width and the height of the counterweight housing can be finely adjusted, so that the height of the counterweight housing and the counterweight track gauge can be adjusted within a certain range during production and use, the universality of the counterweight housing can be improved, and the production cost of the counterweight housing can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator design, in particular to a telescopic counterweight device. Background Art

[0002] With the improvement of people's living standards and the development of high-rise buildings, elevators are being used more and more widely. As a typical special equipment, its operating conditions involve traffic safety in public places. The effective coordination of the major systems of the elevator ensures the safe and efficient operation of the elevator. Among them, the main function of the elevator's traction system is to output and transmit power, while also taking into account the role of protecting the safe operation of the elevator. The traction system consists of a traction machine, traction wire rope, guide wheel, and return rope pulley. The traction machine is mainly composed of an electric motor and a brake, and it is the power source of the elevator. The two ends of the traction wire rope are connected to the car and the counterweight respectively, and the friction between the wire rope and the rope groove of the traction wheel is used to drive the car up and down.

[0003] The invention patent, currently published with the publication number CN111908296B, discloses an elevator counterweight frame. Using specialized brake components, it achieves both braking and heat dissipation, improving elevator safety. This addresses the issue of insufficient braking force, which can sometimes cause the elevator to shift, preventing proper leveling, and even causing falls and roof collisions, endangering passenger safety. Furthermore, the sliding of the counterweight frame generates heat, necessitating solutions for both braking and heat dissipation in emergency situations.

[0004] The existing elevator counterweight frame is made of welded steel structure. Different counterweight gauges require the production of matching counterweight frames, resulting in a large number of counterweight frame models during production, which is not conducive to material unloading and also causes increased material loss, greatly increasing the production cost of the counterweight frame. In order to solve the above problems, a retractable counterweight device is proposed in this application. Utility Model Content

[0005] (1) Purpose of the utility model

[0006] In order to solve the technical problems existing in the background technology, the utility model proposes a retractable counterweight device, which can fine-tune the width and height of the counterweight frame so as to adjust the height and counterweight gauge of the counterweight frame within a certain range during production and use. It can improve the versatility of the counterweight frame and reduce the production cost of the counterweight frame to solve the problems raised in the background technology.

[0007] (2) Technical solution

[0008] In order to solve the above technical problems, the utility model provides a retractable counterweight device, including a counterweight frame, a counterweight seat and a guide wheel, wherein the counterweight seat is movably mounted on the bottom of the inner cavity of the counterweight frame, and the guide wheel is rotatably arranged on the top of the counterweight frame. The top and bottom of the counterweight frame are horizontal frames, and the two sides of the counterweight frame are vertical frames. The two ends of the horizontal frame are provided with horizontal connecting frames, and the two ends of the horizontal frame are provided with horizontal plug-in grooves at the positions corresponding to the positions of the horizontal connecting frames, and the horizontal connecting frames are plugged into the horizontal plug-in grooves;

[0009] A vertical connecting frame is provided in the middle of the vertical frame, and a vertical plugging slot is provided in the middle of the vertical frame corresponding to the position of the vertical connecting frame, and the vertical connecting frame is plugged into the vertical plugging slot.

[0010] Preferably, adjustment fixing holes are provided through the surfaces of the transverse plug-in slot and the vertical plug-in slot, and the adjustment fixing holes are symmetrically arranged, and corresponding holes are provided through the end surfaces of the transverse connecting frame and the vertical connecting frame.

[0011] Preferably, a buffer base is installed on the bottom surface of the counterweight frame, and the buffer base is symmetrically arranged.

[0012] Preferably, positioning holes are provided through the middle of the counterweight seat and the middle of the bottom horizontal frame of the counterweight frame.

[0013] Preferably, a positioning bolt is movably inserted into the inner cavity of the positioning hole, and the nut of the positioning bolt is located on the surface of the counterweight seat.

[0014] Preferably, a limiting groove is provided on the surface of the vertical frame, and both ends of the counterweight seat are plugged into the limiting groove.

[0015] Preferably, fixing brackets are installed on the top and bottom of the outer wall of the vertical frame, and guide brackets are installed on the surface of the fixing brackets.

[0016] The above technical solution of the utility model has the following beneficial technical effects:

[0017] 1. In the present invention, both ends of the transverse frame are connected to the transverse plug-in groove through a transverse connecting frame. By selecting different adjustment fixing holes to fix the transverse connecting frame, the length of the transverse frame can be fine-tuned. The middle of the vertical frame is connected to the vertical plug-in groove through a vertical connecting frame. By selecting different adjustment fixing holes to fix the vertical connecting frame, the height of the vertical frame can be fine-tuned, so that the height and counterweight gauge of the counterweight frame can be adjusted within a certain range during production and use, which can improve the versatility of the counterweight frame and reduce the production cost of the counterweight frame.

[0018] 2. In the present invention, the counterweight seat is installed at the bottom of the inner cavity of the counterweight frame, and the two ends of the counterweight seat are plugged into the limit grooves. At the same time, the positioning bolts are plugged upward from the bottom of the positioning holes, which can facilitate the fixation of the counterweight seat and improve the stability of the installation of the counterweight seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the telescopic counterweight device of the utility model;

[0020] Figure 2 This is a schematic cross-sectional view of the telescopic counterweight device of the present invention;

[0021] Figure 3 This is a schematic diagram of the exploded structure of the counterweight frame of the telescopic counterweight device of the present invention;

[0022] Figure 4 This is a schematic diagram of the fixed structure of the counterweight seat of the telescopic counterweight device of the utility model.

[0023] Reference numerals:

[0024] 1. Counterweight frame; 2. Counterweight seat; 3. Guide wheel; 4. Horizontal frame; 5. Vertical frame; 6. Horizontal connecting frame; 7. Horizontal plug-in slot; 8. Vertical connecting frame; 9. Vertical plug-in slot; 10. Adjustment fixing hole; 11. Buffer base; 12. Positioning hole; 13. Positioning bolt; 14. Limiting slot; 15. Fixed bracket; 16. Guide frame. DETAILED DESCRIPTION

[0025] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.

[0026] like Figure 1-4 As shown, the retractable counterweight device proposed in the present invention includes a counterweight frame 1, a counterweight seat 2 and a guide wheel 3. The counterweight seat 2 is movably mounted on the bottom of the inner cavity of the counterweight frame 1, and the guide wheel 3 is rotatably arranged on the top of the counterweight frame 1. The top and bottom of the counterweight frame 1 are horizontal frames 4, and the two sides of the counterweight frame 1 are vertical frames 5. The two ends of the horizontal frame 4 are provided with horizontal connecting frames 6. The two ends of the horizontal frame 4 are provided with horizontal plug-in grooves 7 at the positions corresponding to the positions of the horizontal connecting frames 6. The horizontal connecting frames 6 are plugged into the horizontal plug-in grooves 7.

[0027] A vertical connecting frame 8 is provided in the middle of the vertical frame 5, and a vertical plug-in slot 9 is opened in the middle of the vertical frame 5 corresponding to the position of the vertical connecting frame 8. The vertical connecting frame 8 is plugged into the vertical plug-in slot 9. Adjustment fixing holes 10 are opened through the surfaces of the horizontal plug-in slot 7 and the vertical plug-in slot 9. The adjustment fixing holes 10 are symmetrically arranged, and corresponding holes are opened through the end surfaces of the horizontal connecting frame 6 and the vertical connecting frame 8.

[0028] It should be noted that the two ends of the transverse frame 4 are connected to the transverse plug-in slot 7 through the transverse connecting frame 6. By selecting different adjustment fixing holes 10 to fix the transverse connecting frame 6, the length of the transverse frame 4 can be fine-tuned. The middle part of the vertical frame 5 is connected to the vertical plug-in slot 9 through the vertical connecting frame 8. By selecting different adjustment fixing holes 10 to fix the vertical connecting frame 8, the height of the vertical frame 5 can be fine-tuned, so that the height and counterweight gauge of the counterweight frame 1 can be adjusted within a certain range during production and use, which can improve the versatility of the counterweight frame 1 and reduce the production cost of the counterweight frame 1.

[0029] In this embodiment, if Figure 4 As shown, a buffer base 11 is installed on the bottom surface of the counterweight frame 1, and the buffer base 11 is symmetrically arranged.

[0030] It should be noted that when the counterweight frame 1 suddenly falls, the buffer base 11 first contacts the ground, which can play a buffering role to reduce the impact force on the counterweight frame 1.

[0031] In this embodiment, if Figure 1 and Figure 4 As shown, a positioning hole 12 is provided through the middle of the counterweight seat 2 and the middle of the bottom horizontal frame 4 of the counterweight frame 1. A positioning bolt 13 is movably inserted into the inner cavity of the positioning hole 12. The nut of the positioning bolt 13 is located on the surface of the counterweight seat 2. A limiting groove 14 is provided on the surface of the vertical frame 5. The two ends of the counterweight seat 2 are inserted into the limiting groove 14.

[0032] It should be noted that the counterweight seat 2 is installed at the bottom of the inner cavity of the counterweight frame 1, and the two ends of the counterweight seat 2 are plugged into the limit grooves 14. At the same time, the positioning bolts 13 are plugged upward from the bottom of the positioning hole 12, which can facilitate the fixation of the counterweight seat 2 and improve the stability of the installation of the counterweight seat 2.

[0033] In this embodiment, if Figure 1 As shown, fixing brackets 15 are installed on the top and bottom of the outer wall of the vertical frame 5, and guide frames 16 are installed on the surface of the fixing brackets 15.

[0034] It should be noted that both sides of the counterweight frame 1 are connected to the guide rails through the guide frames 16. When the counterweight frame 1 is raised or lowered, the guide frames 16 can play a guiding role to improve the stability of the counterweight frame 1 during the raising or lowering.

[0035] The working principle and use process of the utility model are as follows: the counterweight seat 2 is installed at the bottom of the inner cavity of the counterweight frame 1, and the two ends of the counterweight seat 2 are plugged into the limit grooves 14. At the same time, the positioning bolts 13 are plugged upward from the bottom of the positioning holes 12, which can facilitate the fixation of the counterweight seat 2 and improve the stability of the installation of the counterweight seat 2. The two sides of the counterweight frame 1 are connected to the guide rails through the guide frames 16. When the counterweight frame 1 is lifted or lowered, the guide frames 16 can play a guiding role to improve the stability of the lifting of the counterweight frame 1. The two ends of the cross frame 4 are connected by the cross connecting frames 6 is plugged into the horizontal plug-in groove 7, and the horizontal connecting frame 6 is fixed by selecting different adjustment fixing holes 10 to fine-tune the length of the horizontal frame 4. The middle part of the vertical frame 5 is plugged into the vertical plug-in groove 9 through the vertical connecting frame 8. The vertical connecting frame 8 is fixed by selecting different adjustment fixing holes 10 to fine-tune the height of the vertical frame 5, so that the height and counterweight gauge of the counterweight frame 1 can be adjusted within a certain range during production and use, which can improve the versatility of the counterweight frame 1 and reduce the production cost of the counterweight frame 1.

[0036] It should be understood that the above-described specific embodiments of the present invention are merely illustrative of or explanation of the principles of the present invention and do not constitute limitations of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the scope of protection of the present invention. In addition, the appended claims of the present invention are intended to cover all variations and modifications that fall within the scope and metes and bounds of the appended claims or their equivalents.

Claims

1. A telescopic counterweight device, comprising a counterweight frame (1), a counterweight seat (2) and a guide wheel (3), wherein the counterweight seat (2) is movably mounted on the bottom of the inner cavity of the counterweight frame (1), and the guide wheel (3) is rotatably mounted on the top of the counterweight frame (1), characterized in that: The top and bottom of the counterweight frame (1) are horizontal frames (4), and both sides of the counterweight frame (1) are vertical frames (5). The two ends of the horizontal frame (4) are provided with horizontal connecting frames (6). The two ends of the horizontal frame (4) are provided with horizontal plug-in grooves (7) at positions corresponding to the positions of the horizontal connecting frames (6). The horizontal connecting frames (6) are plugged into the horizontal plug-in grooves (7). A vertical connecting frame (8) is provided in the middle of the vertical frame (5), a vertical plug-in slot (9) is provided in the middle of the vertical frame (5) at a position corresponding to the vertical connecting frame (8), and the vertical connecting frame (8) is plugged into the vertical plug-in slot (9).

2. The retractable counterweight device according to claim 1, characterized in that: Adjustment fixing holes (10) are provided through the surfaces of the transverse plug-in slot (7) and the vertical plug-in slot (9), and the adjustment fixing holes (10) are symmetrically arranged. Corresponding holes are provided through the end surfaces of the transverse connecting frame (6) and the vertical connecting frame (8).

3. The retractable counterweight device according to claim 2, characterized in that: A buffer base (11) is installed on the bottom surface of the counterweight frame (1), and the buffer base (11) is symmetrically arranged.

4. The retractable counterweight device according to claim 3, characterized in that: Positioning holes (12) are provided through the middle of the counterweight seat (2) and the middle of the bottom transverse frame (4) of the counterweight frame (1).

5. The retractable counterweight device according to claim 4, characterized in that: A positioning bolt (13) is movably inserted into the inner cavity of the positioning hole (12), and the nut of the positioning bolt (13) is located on the surface of the counterweight seat (2).

6. The retractable counterweight device according to claim 5, characterized in that: A limiting groove (14) is provided on the surface of the vertical frame (5), and both ends of the counterweight seat (2) are plugged into the limiting groove (14).

7. The retractable counterweight device according to claim 6, characterized in that: The top and bottom of the outer wall of the vertical frame (5) are both installed with fixed brackets (15), and the surface of the fixed bracket (15) is installed with a guide bracket (16).

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