An elevator counterweight device

Abstract

The utility model relates to an elevator counterweight device, include: counterweight outer frame, counterweight block is placed in counterweight outer frame to be placed through the way of superposition, clamping structure is installed in one side of counterweight outer frame, the side surface of counterweight block is equipped with the notched opening of contact with clamping structure, and is installed with the circular groove in the other side, and the inboard surface of counterweight outer frame is installed with the fastening protrusion of and with circular groove card, the adjacent two sides counterweight block staggered arrangement, and the corresponding clamping structure staggered arrangement. The utility model solves the problem that the existing counterweight device, the clamping of counterweight block is not good, and cannot better reduce the influence of the size of the counterweight device after increasing additional components, makes it unable to adapt to the problem of installation in compact elevator shaft.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, specifically to an elevator counterweight device. Background Technology

[0002] The main function of the elevator counterweight is to balance the weight of the car, thereby significantly reducing the load on the drive motor. It generally consists of an outer frame, counterweight blocks, traction wheels, and guide shoes.

[0003] In existing elevator counterweight devices, a major problem is the stability of the counterweight blocks. To improve this stability, Chinese patent CN212863748U describes an elevator counterweight device that uses lateral fastening bolts penetrating the counterweight frame. This allows for adjustment of the position of the inner side panels of the counterweight frame, facilitating better fixation of the counterweight blocks between the two side panels. Simultaneously, support bolts are used to support the upper panel. Adjusting the upper fastening bolts limits the vertical movement of the counterweight blocks, preventing them from shifting within the counterweight frame under the fixation of the side and upper panels. This effectively solves the problem of counterweight blocks shifting within the counterweight frame. The patented solution does improve the stability of the counterweight by addressing the issue of abnormal noise caused by movement. However, it also has certain drawbacks. As can be seen from the attached drawings of the patent, the counterweight device has a limiting part set on the counterweight in actual manufacturing. Although this is not difficult to implement, it has potential risks. If it is welded to the counterweight, there is a risk of breakage due to long-term compression. If it is machined, the limiting part does have high strength, but the processing is too laborious. Furthermore, the separate side pressure plate set on the outside of the counterweight frame will inevitably increase the space required. If applied in a compact elevator shaft, it is impossible to ensure that sufficient installation space is provided.

[0004] Therefore, based on the above, in order to facilitate the clamping of the counterweight, improve stability, ensure the stability of the counterweight stabilizing components, and reduce the significant impact of additional components on the specifications of the counterweight device, an elevator counterweight device is proposed, thereby solving the aforementioned existing technical problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an elevator counterweight device that solves the problems of poor clamping of the counterweight blocks and the inability to effectively reduce the impact of adding extra components on the size of the counterweight device, making it unsuitable for installation in the compact elevator shaft.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an elevator counterweight device, comprising: Counterweight scaffolding; The counterweights are placed inside the counterweight frame and stacked on top of each other. The clamping structure is installed on one side of the counterweight's outer frame; A slot is provided on one side of the counterweight to contact the clamping structure, and a circular groove is installed on the other side. The inner side of the counterweight frame is fitted with a fastening protrusion that engages with the circular groove; The counterweights on adjacent sides are arranged in an alternating manner, and the corresponding clamping structures are also arranged in an alternating manner.

[0007] Furthermore, the clamping structure includes a clamping column, which is threadedly connected to the counterweight frame, and has an opening on its outer end face to facilitate the insertion of a wrench and tightening of the clamping column.

[0008] Furthermore, the groove on the left side of the counterweight is chamfered, and the groove on the other side has the same specifications as the fastening protrusion.

[0009] As a preferred technical solution, the counterweight frame includes an upper mounting plate, side frames, and a lower mounting plate. The side frames are installed on both sides of the upper mounting plate, and the lower mounting plate is installed on the side frames. A cavity is formed between the two sets of side frames, and the counterweight blocks are stacked sequentially from the surface of the lower mounting plate.

[0010] Furthermore, a clamping plate is bolted to the inner side of the side frame, and the lower end face of the clamping plate is in contact with the surface of the uppermost counterweight.

[0011] As a preferred technical solution, protective plates are installed on both the front and rear ends of the side frame.

[0012] Furthermore, a traction wheel is movably mounted on the inner side of the upper mounting plate, and a protective cover is installed on the surface of the upper mounting plate to enclose the traction wheel.

[0013] As a preferred technical solution, guide shoes are installed on both sides of the upper mounting plate and both sides of the lower mounting plate.

[0014] Furthermore, a buffer body is also installed on the lower end face of the lower mounting plate.

[0015] Compared with the prior art, the present invention provides an elevator counterweight device, which has the following beneficial effects: 1. This counterweight device has a circular fastening protrusion installed on the inner side of the side frame, which is welded and fixedly connected to the side frame. When installing the counterweight, the length of the counterweight is less than the width between the two sets of side frames. Therefore, during installation, the operator only needs to align the circular groove on the corresponding side of the counterweight with the fastening protrusion, and then tighten the clamping column on the other side using a wrench, so that the clamping column moves into the groove on the corresponding side of the counterweight, thereby achieving a stable clamping of the counterweight.

[0016] 2. Based on the above, and in conjunction with the prior art document CN212863748U, a counterweight device for an elevator, although the fastening protrusion in this design is also welded, the fastening protrusion is located on the side frame, and the counterweight block applies a lateral force to the fastening protrusion, not a vertical force, while the prior art document applies a vertical downward force. Therefore, the limiting part of the counterweight block located at the bottom side bears a large force, and it cannot be guaranteed that under such gravity, the limiting part will not break or deform due to compression. This technical solution does not need to consider this problem.

[0017] 3. The clamping column of this counterweight device only extends slightly out of the side plate after tightening, and will not have a significant impact on the overall width specifications. Therefore, it will not have a negative impact when installing in elevator shafts with relatively compact structures and insufficient space. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the present invention; Figure 2 This utility model Figure 1 A three-dimensional schematic diagram; Figure 3 This is a schematic diagram of the counterweight of this utility model; Figure 4 This utility model Figure 1 A cross-sectional view; Figure 5 This utility model Figure 4 A magnified view of part A; Figure 6 This utility model Figure 4 A magnified view of part B.

[0019] In the diagram: 1. Upper mounting plate; 2. Side frame; 3. Lower mounting plate; 4. Protective plate; 5. Traction wheel; 6. Protective cover; 7. Guide shoe; 8. Buffer body; 9. Counterweight; 10. Fastening protrusion; 11. Clamping column; 12. Clamping plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0021] Please see Figure 1-6 This utility model provides the following technical solution: an elevator counterweight device, comprising: Counterweight scaffolding; Counterweight 9 is placed inside the counterweight frame and stacked on top of each other. The clamping structure is installed on one side of the counterweight's outer frame; The counterweight 9 has a slot on one side that contacts the clamping structure, and a circular groove on the other side. The inner side of the counterweight frame is equipped with a fastening protrusion 10 that engages with a circular groove; The counterweights 9 on adjacent sides are arranged in an alternating manner, and the corresponding clamping structures are also arranged in an alternating manner.

[0022] In this implementation plan, the specific working principle is as follows: When installing the counterweight block 9, first install the side plate 2 and the lower mounting plate 3 in the counterweight outer frame, and then install the counterweight block 9 as follows. Figure 4 Install as shown, so that the right side of the counterweight 9 can fit against the circular fastening protrusion 10, and the fastening protrusion 10 is inserted into the circular groove. At this time, tighten the clamping structure with a wrench so that the clamping structure clamps the other side of the counterweight 9, thereby improving the stability of the counterweight 10. This method can easily complete the clamping of the counterweight 9, and there is no need to add other structures to the counterweight 9, resulting in low processing costs.

[0023] The clamping structure includes a clamping column 11, which is threadedly connected to the counterweight frame, and has an opening on its outer end face to facilitate the insertion of a wrench and tightening of the clamping column 11.

[0024] See Figure 4 As can be seen, the slot on the left side of the counterweight 9 is chamfered, which makes it easier for the clamping column 11 to be engaged in the slot. The groove on the other side is the same size as the fastening protrusion 10.

[0025] Due to the addition of an extra structure, clamping column 11, in order not to affect the overall size and specifications of the counterweight device, please refer to the relevant documentation. Figure 4 As can be seen, after the clamping column 11 completes the clamping of the counterweight 9, its clamping column 11 is slightly outside the side plate 2.

[0026] For details regarding the heavy-duty external scaffolding, please refer to [link / reference]. Figure 3 as well as Figure 4 As can be seen, the counterweight frame includes an upper mounting plate 1, side frames 2, and a lower mounting plate 3. The side frames 2 are installed on both sides of the upper mounting plate 1, and the lower mounting plate 3 is installed on the side frames 2. A cavity is formed between the two sets of side frames 2, and the counterweight blocks 9 are stacked sequentially from the surface of the lower mounting plate 3.

[0027] For further clamping of counterweight 9, please refer to the following details. Figure 4As can be seen, a clamping plate 12 is bolted to the inner side of the side frame 2, and the lower end face of the clamping plate 12 is in contact with the surface of the uppermost counterweight 9.

[0028] For details on how to protect counterweight 9, please refer to [link / reference needed]. Figure 2 As can be seen, protective plates 4 are installed on the front and rear ends of the side frame 2.

[0029] See Figure 2 As can be seen, a traction wheel 5 is movably mounted on the inner side of the upper mounting plate 1, and a protective cover 6 is installed on the surface of the upper mounting plate 1 to enclose the traction wheel 5. This structure is consistent with the prior art, and its function is also the same, so it will not be described in detail.

[0030] See Figure 1 and Figure 2 As can be seen, guide shoes 7 are installed on both sides of the upper mounting plate 1 and both sides of the lower mounting plate 3. This structure is consistent with the prior art, and its function is also the same, so it will not be described in detail.

[0031] See Figure 1 and Figure 2 As can be seen, a buffer body 8 is also installed on the lower end face of the lower mounting plate 3. This structure is consistent with the prior art, and its function is also the same, so it will not be described in detail.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An elevator counterweight device, characterized in that, include: Counterweight scaffolding; The counterweight (9) is placed inside the counterweight frame and stacked on top of each other. The clamping structure is installed on one side of the counterweight's outer frame; The counterweight (9) has a slot on one side that contacts the clamping structure, and a circular groove on the other side. The inner side of the counterweight frame is fitted with a fastening protrusion (10) that engages with the circular groove. The adjacent counterweights (9) are arranged in an alternating manner, and the corresponding clamping structures are arranged in an alternating manner.

2. The elevator counterweight device according to claim 1, characterized in that: The clamping structure includes a clamping column (11), which is threadedly connected to the counterweight frame, and has an opening on its outer end face to facilitate the insertion of a wrench and tightening of the clamping column (11).

3. The elevator counterweight device according to claim 2, characterized in that: The slot on the left side of the counterweight (9) is chamfered, and the groove on the other side is the same size as the fastening protrusion (10).

4. The elevator counterweight device according to claim 1, characterized in that: The counterweight frame includes an upper mounting plate (1), a side frame (2), and a lower mounting plate (3). The side frame (2) is installed on both sides of the upper mounting plate (1), and the lower mounting plate (3) is installed on the side frame (2). A cavity is formed between the two sets of side frames (2), and the counterweight blocks (9) are stacked sequentially from the surface of the lower mounting plate (3).

5. The elevator counterweight device according to claim 4, characterized in that: A clamping plate (12) is bolted to the inner side of the side frame (2), and the lower end face of the clamping plate (12) is in contact with the surface of the uppermost counterweight (9).

6. The elevator counterweight device according to claim 4, characterized in that: Protective plates (4) are installed on the front and rear ends of the side frame (2).

7. The elevator counterweight device according to claim 4, characterized in that: A traction wheel (5) is movably mounted on the inner side of the upper mounting plate (1), and a protective cover (6) is installed on the surface of the upper mounting plate (1) to enclose the traction wheel (5).

8. The elevator counterweight device according to claim 4, characterized in that: Guide shoes (7) are installed on both sides of the upper mounting plate (1) and both sides of the lower mounting plate (3).

9. The elevator counterweight device according to claim 4, characterized in that: A buffer body (8) is also installed on the lower end face of the lower mounting plate (3).

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