An elevator counterweight

Abstract

This utility model belongs to the field of elevator counterweight technology, and in particular to an elevator counterweight block, including a counterweight frame, in which a plurality of counterweight blocks are provided. Two clamping components are provided on the top of each counterweight block. Each clamping component includes two clamping plates and two first connecting bolts. A pressure plate is fixedly connected to the bottom of one of the clamping plates. The top of each counterweight block has a contact surface, and the pressure plate contacts the contact surface. By fixing the position of the clamping plate, the pressure plate adheres to the contact surface, thus generating a limiting force on the use of the counterweight block. A cover plate is inserted into the pressure plate under the action of a pin, and a second connecting bolt is connected in a threaded hole, further generating a limiting force on the use of the counterweight block. This restricts the position of the counterweight blocks from different directions, avoiding the phenomenon of small gaps between multiple counterweight blocks and improving the stability of the counterweight block in use.

Description

Technical Field

[0001] This utility model belongs to the field of elevator counterweight technology, specifically relating to an elevator counterweight block. Background Technology

[0002] An elevator counterweight is a balancing system that uses a counterweight device to balance the weight of the elevator car and part of the load. Its core consists of a counterweight frame and counterweight blocks, installed in the hoistway to achieve dynamic balance with the car. Optimal balance is achieved when the car load reaches 40%-50% of the rated load. This system reduces motor power loss through linkage with the traction ropes. When the mass difference between the car and the counterweight is less than 50% of the rated load, friction and wear between the wire ropes and pulleys are reduced. Generally, the counterweight is located inside the car body and connected to the car body by the traction machine sheave. Because the load on the car body varies, the balance is relatively variable.

[0003] The counterweight is located inside the elevator car. When the elevator car moves up and down, the counterweight moves as a whole, and its direction of movement is opposite to that of the car. Some elevators use a limiting plate to restrict the position of the counterweight. The limiting plate is held tightly to the rod of the car body. When subjected to vertical movement, some counterweights will produce a small gap. The counterweights, which should move as a whole, will produce a metallic knocking noise due to the small gap, which will affect the use of the counterweights. Utility Model Content

[0004] This utility model provides an elevator counterweight block that restricts the position of the counterweight block from different directions, avoids the phenomenon of small gaps between multiple counterweight blocks, and improves the stability of the counterweight block in use.

[0005] This utility model provides the following technical solution: an elevator counterweight block, including a counterweight frame, a plurality of counterweight blocks are provided in the counterweight frame, two clamping components are provided on the top of the counterweight blocks, the clamping components include two clamping plates and two first connecting bolts, one of the clamping plates is fixedly connected to a pressure plate at its bottom, the top of the counterweight blocks has a contact top surface, the pressure plate contacts the contact top surface, and the top of the counterweight blocks is provided with a downward pressing connection component, the downward pressing connection component includes a cover plate and two inserts, the inserts are inserted into the pressure plate.

[0006] The two clamping plates are located on both sides of the counterweight frame rod, and clamping force is applied by the first connecting bolt.

[0007] The first connecting bolt has two ends located on the outer sides of the two clamping plates, and a nut is threaded onto the outer wall of the first connecting bolt.

[0008] The insert is fixedly connected to the cover plate, and the top end face of the pressure plate is opposite to the bottom end face of the cover plate.

[0009] The counterweight block has protrusions fixedly connected to both sides, and the protrusions are located inside the counterweight frame.

[0010] The bottom end of the insert has an insertion end, which is inserted into the pressure plate.

[0011] The counterweight frame has several threaded holes on its side, and two folding plates are fixedly connected to the top of the cover plate. A second connecting bolt is provided inside the folding plate, and one end of the second connecting bolt is threadedly connected to the threaded hole.

[0012] The beneficial effects of this utility model are:

[0013] The clamping assembly includes two clamping plates and two first connecting bolts. A pressure plate is fixedly connected to the bottom of one of the clamping plates, and the top of the counterweight has a contact surface. The pressure plate contacts the contact surface. By fixing the position of the clamping plate, the pressure plate adheres to the contact surface, which can generate a limiting force on the use of the counterweight. The cover plate is inserted into the pressure plate under the action of the insert post, and the second connecting bolt is connected in the threaded hole, which can further generate a limiting force on the use of the counterweight. The position of the counterweight is restricted from different directions, avoiding the phenomenon of small gaps between multiple counterweights and improving the stability of the counterweight in use.

[0014] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is the front view of the present invention;

[0017] Figure 3 This is a schematic diagram of the counterweight block in this utility model;

[0018] Figure 4 This is a schematic diagram of the cover plate in this utility model;

[0019] In the diagram: 1. Counterweight frame; 11. Threaded hole; 2. Counterweight block; 21. Top contact surface; 22. Protrusion; 3. Clamping assembly; 31. Clamping plate; 32. First connecting bolt; 33. Pressure plate; 4. Downward pressing connecting assembly; 41. Cover plate; 42. Insert post; 421. Insertion end; 43. Folding plate; 44. Second connecting bolt. Detailed Implementation

[0020] Please see Figures 1-4The present invention provides the following technical solution: a counterweight frame 1 is provided, and a plurality of counterweight blocks 2 are provided inside the counterweight frame 1. Two clamping components 3 are provided on the top of the counterweight blocks 2. The clamping components 3 include two clamping plates 31 and two first connecting bolts 32. A pressure plate 33 is fixedly connected to the bottom of one of the clamping plates 31. The top of the counterweight blocks 2 has a contact top surface 21. The pressure plate 33 contacts the contact top surface 21. A downward pressing connection component 4 is provided on the top of the counterweight blocks 2. The downward pressing connection component 4 includes a cover plate 41 and two inserts 42. The inserts 42 are inserted into the pressure plate 33.

[0021] In this embodiment: the clamping assembly 3 includes two clamping plates 31 and two first connecting bolts 32. A pressure plate 33 is fixedly connected to the bottom of one of the clamping plates 31. The counterweight block 2 has a contact surface 21 at its top, and the pressure plate 33 contacts the contact surface 21. A downward pressing connection assembly 4 is provided at the top of the counterweight block 2. The downward pressing connection assembly 4 includes a cover plate 41 and two inserts 42, which are inserted into the pressure plate 33. The two clamping plates 31 are respectively distributed on both sides of the counterweight frame 1 rod. The two clamping plates 31 are locked together using the first connecting bolts 32. The fixed position of plate 31 and the pressure plate 33 attached to the contact top surface 21 can generate a limiting force on the use of the counterweight. The cover plate 41 is inserted into the pressure plate 33 under the action of the insert post 42. The insertion end 421 can be located in the pressure plate 33. The second connecting bolt 44 can pass through the folding plate 43 and be connected in the threaded hole 11, thereby continuing to generate a limiting force on the use of the counterweight. The position of the counterweight body 2 is restricted from different directions, avoiding the phenomenon of small gaps between multiple counterweight bodies 2 and improving the stability of the counterweight.

[0022] Two clamping plates 31 are located on both sides of the counterweight frame 1 rod. A clamping force is applied by the first connecting bolt 32. The two ends of the first connecting bolt 32 are located on the outside of the two clamping plates 31, and nuts are threaded onto the outer wall of the first connecting bolt 32. The two clamping plates 31 are distributed on both sides of the counterweight frame 1 rod. The two clamping plates 31 are locked by the first connecting bolt 32. With the position of the clamping plates 31 fixed, the pressure plate 33 is attached to the contact top surface 21, which can generate a limiting force on the use of the counterweight.

[0023] The insert post 42 is fixedly connected to the cover plate 41. The top end face of the pressure plate 33 is opposite to the bottom end face of the cover plate 41. Several threaded holes 11 are opened on the side of the counterweight frame 1. Two folding plates 43 are fixedly connected to the top of the cover plate 41. A second connecting bolt 44 is provided in the folding plate 43. One end of the second connecting bolt 44 is threadedly connected to the threaded hole 11. The bottom end of the insert post 42 has an insertion end 421, which is inserted into the pressure plate 33. The cover plate 41 is inserted into the pressure plate 33 under the action of the insert post 42. The insertion end 421 can be located in the pressure plate 33. The second connecting bolt 44 can pass through the folding plate 43. By connecting the second connecting bolt 44 in the threaded hole 11, a limiting force can be generated on the use of the counterweight. Since the thickness of the multiple counterweights 2 is the same, the distribution of the counterweights 2 is consistent, and the multiple threaded holes 11 can be evenly distributed, which is convenient for use with the second connecting bolt 44.

[0024] Both sides of the counterweight block 2 are fixedly connected with protrusions 22, which are located inside the counterweight frame 1. The counterweight block 2 is located inside the counterweight frame 1, and the protrusions 22 can restrict its position under their influence.

[0025] The working principle and usage process of this utility model are as follows: The top of the counterweight block 2 has a contact surface 21, and the pressure plate 33 contacts the contact surface 21. The top of the counterweight block 2 is provided with a downward pressing connection assembly 4, which includes a cover plate 41 and two inserts 42. The inserts 42 are inserted into the pressure plate 33. Two clamping plates 31 are respectively distributed on both sides of the counterweight frame 1. The two clamping plates 31 are locked using the first connecting bolt 32. Through the fixing of the position of the clamping plates 31, the pressure plate 33 is attached to the contact surface 21. On the 1st, a limiting force can be generated on the use of the counterweight. The cover plate 41 is inserted into the pressure plate 33 under the action of the insert post 42. The insertion end 421 can be located in the pressure plate 33. The second connecting bolt 44 can pass through the folding plate 43 and be connected in the threaded hole 11. This can further generate a limiting force on the use of the counterweight, restricting the position of the counterweight body 2 from different directions, avoiding the phenomenon of small gaps between multiple counterweight bodies 2, and improving the stability of the counterweight in use.

Claims

1. An elevator counterweight, comprising a counterweight frame (1) in which a plurality of counterweight bodies (2) are arranged, characterized in that: The counterweight block (2) is provided with two clamping components (3) at the top. The clamping components (3) include two clamping plates (31) and two first connecting bolts (32). One of the clamping plates (31) is fixedly connected to a pressure plate (33) at the bottom. The counterweight block (2) has a contact top surface (21) at the top. The pressure plate (33) contacts the contact top surface (21). The counterweight block (2) is provided with a downward pressing connection component (4) at the top. The downward pressing connection component (4) includes a cover plate (41) and two inserts (42). The inserts (42) are inserted into the pressure plate (33).

2. An elevator counterweight as defined in claim 1, characterized by: The two clamping plates (31) are located on both sides of the counterweight frame (1) rod, and clamping force is applied by the first connecting bolt (32).

3. The elevator counterweight according to claim 1, characterized in that: The first connecting bolt (32) has two ends located on the outside of the two clamping plates (31), and the outer wall of the first connecting bolt (32) is threaded with a nut.

4. The elevator counterweight block according to claim 1, characterized in that: The insert (42) is fixedly connected to the cover plate (41), and the top end face of the pressure plate (33) is opposite to the bottom end face of the cover plate (41).

5. The elevator counterweight block according to claim 1, characterized in that: Both sides of the counterweight block (2) are fixedly connected with protrusions (22), and the protrusions (22) are located inside the counterweight frame (1).

6. The elevator counterweight block according to claim 1, characterized in that: The bottom end of the insert (42) has an insertion end (421), which is inserted into the pressure plate (33).

7. An elevator counterweight according to claim 1, characterized in that: The counterweight frame (1) has several threaded holes (11) on its side. The top of the cover plate (41) is fixedly connected to two folding plates (43). The folding plates (43) are provided with a second connecting bolt (44). One end of the second connecting bolt (44) is threadedly connected to the threaded hole (11).

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