Balance compensation chain stress relieving device for elevator

Abstract

The utility model relates to the technical field of elevator balance compensation chains, and particularly discloses a balance compensation chain stress relieving device for an elevator, which comprises a device shell, the lower end of the device shell is connected with a fixing plate, and a fixing mechanism for fixing a compensation chain is arranged below the fixing plate. A buffering mechanism used for buffering the compensation chain is arranged above the device shell. The fixing mechanism comprises a connecting plate, and the connecting plate is fixed to the lower portion of the fixing plate. One end of the compensation chain body is connected with the connecting piece through the arranged fixing mechanism, the connecting piece can be conveniently fixed to the fixing base, the connecting plate can rotate through the fixing bearing arranged in the device shell under the cooperation of the connecting rod, and then stress generated by the compensation chain body is eliminated; and fixing bolts on the device shell are screwed off, so that parts in the device shell can be conveniently disassembled and maintained, and the parts can be conveniently and independently replaced.

Description

Technical Field

[0001] This utility model relates to the field of elevator balance compensation chain technology, and in particular to a stress relief device for elevator balance compensation chain. Background Technology

[0002] Elevator stress relief devices for balancing compensation chains are crucial for reducing stress on the compensation chain during elevator operation, extending its lifespan, and improving the smoothness and safety of elevator operation. In elevator systems, when the lifting height exceeds a certain limit (typically exceeding 30 meters), a balancing compensation chain is needed to connect the car and counterweight to balance the weight changes of the traction ropes and traveling cables, ensuring smooth elevator operation. However, with continuous elevator operation, the compensation chain is subjected to various stresses, such as tension, bending, and torsion. These stresses can lead to wear, deformation, or even breakage of the compensation chain, affecting the safe operation of the elevator.

[0003] Existing methods for stress relief using elevator balance compensation chains involve manually relieving stress by fixing one end of the compensation chain and suspending the other end off the ground, using the chain's own weight to release stress. This method results in cumbersome installation of the compensation chain and increases installation costs.

[0004] An existing patent (publication number: CN209507366U) discloses a stress relief device for a balance compensation chain in elevators. It includes a sleeve and a rod. The bottom of the rod is suspended upside down within the sleeve and rotates via a support structure. Simultaneously, the bottom of the sleeve is connected to the compensation chain via a swing connecting rod, which swings to compensate for stress. The top of the rod is connected to the car or counterweight frame via a top fixed shaft. This device can eliminate the stress generated by the compensation chain during operation, significantly reduce wear and deformation of the compensation chain during operation, ultimately extending the service life of the compensation chain and reducing the operation and maintenance costs of the elevator.

[0005] To address the aforementioned issues, while existing patents offer solutions that can eliminate stress generated during operation of the compensation chain and significantly reduce wear and deformation, they are cumbersome to assemble. Furthermore, since the device is a single unit, damaged parts cannot be replaced when it malfunctions; the entire device must be replaced, resulting in poor practicality. Summary of the Invention

[0006] The purpose of this utility model is to provide a stress relief device for a balance compensation chain in elevators. One end of the compensation chain body is connected to a connector, which can be easily fixed to a fixed base. Through the fixed bearing set inside the device housing, the connecting plate can rotate with the cooperation of the connecting rod, thereby eliminating the stress generated by the compensation chain body. The fixing bolts on the device housing can be unscrewed to facilitate the disassembly and maintenance of the parts inside the device housing, and to facilitate the individual replacement of parts, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a stress relief device for a balance compensation chain in an elevator, comprising a device housing, a fixing plate connected to the lower end of the device housing, a fixing mechanism for fixing the compensation chain below the fixing plate, and a buffering mechanism for buffering the compensation chain above the device housing.

[0008] The fixing mechanism includes a connecting plate, which is fixed below the fixing plate. A fixing seat is fixed on the lower surface of the connecting plate. A connecting member is fixed to the lower end of the fixing seat by bolts. A compensating chain body is connected inside the connecting member. A connecting rod that penetrates the interior of the fixing plate is fixed on the upper surface of the connecting plate.

[0009] Preferably, a limiting plate is fixed on the upper surface of the connecting rod, and a fixed bearing embedded in the inner wall of the device housing is sleeved on the outer surface of the connecting rod.

[0010] Preferably, a limiting ring that is inserted and connected to the outer shell of the device is fixed on the upper surface of the fixing plate, and a fixing bolt that abuts and connects to the limiting ring is installed on the outer wall of the outer shell of the device.

[0011] Preferably, the buffer mechanism includes a buffer element, which is positioned above the device housing, and the buffer element has an internal mounting plate that is fixedly connected to the device housing.

[0012] Preferably, guide rods are fixed on both sides of the mounting plate, and buffer springs that abut against the mounting plate are sleeved on the outer surface of the guide rods.

[0013] Preferably, the outer surface of the guide rod is slidably connected to an adjusting plate that abuts against the buffer spring, and one side of the adjusting plate is rotatably connected to an adjusting screw that is threadedly connected to the buffer component via a bearing.

[0014] Preferably, a fixed top plate is fixed to the upper surface of the buffer member, and expansion bolts are installed inside the fixed top plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. By setting a fixing mechanism, one end of the compensation chain body and the connector are connected, and the connector can be easily fixed to the fixing seat. Through the fixed bearing set in the device housing, the connecting plate can be rotated with the cooperation of the connecting rod, thereby eliminating the stress generated by the compensation chain body. The fixing bolts on the device housing can be unscrewed to facilitate the disassembly and maintenance of the parts inside the device housing, and facilitate the individual replacement of the parts.

[0017] 2. The buffer mechanism provides a certain degree of cushioning, effectively reducing the risk of damage to the device. By turning the adjusting screw on the outer casing of the device, the adjusting plate on the guide rod can be moved, thereby adjusting the tension of the buffer spring and ensuring that the buffer spring absorbs the force during shaking. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is an overall structural view of the present invention;

[0020] Figure 2 This is a half-sectional structural diagram of the outer shell of the device of this utility model;

[0021] Figure 3 This is a half-sectional structural diagram of the buffer component of this utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the fixing base of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Device housing; 2. Fixing plate; 3. Connecting plate; 31. Fixing seat; 32. Connecting piece; 33. Compensating chain body; 34. Connecting rod; 35. Limiting plate; 36. Fixing bearing; 4. Limiting ring; 5. Fixing bolt; 6. Buffer component; 61. Mounting plate; 62. Guide rod; 63. Buffer spring; 64. Adjusting plate; 65. Adjusting screw; 7. Fixing top plate; 8. Expansion bolt. Detailed Implementation

[0025] 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.

[0026] This utility model provides a technical solution:

[0027] Please see Figures 1 to 4 An elevator balance compensation chain stress relief device includes a device housing 1, a fixing plate 2 connected to the lower end of the device housing 1, a fixing mechanism for fixing the compensation chain below the fixing plate 2, and a buffering mechanism for buffering the compensation chain above the device housing 1.

[0028] The fixing mechanism includes a connecting plate 3, which is fixed below the fixing plate 2. A fixing seat 31 is fixed on the lower surface of the connecting plate 3. A connecting piece 32 is fixed to the lower end of the fixing seat 31 by bolts. A compensating chain body 33 is connected inside the connecting piece 32. A connecting rod 34 that penetrates the interior of the fixing plate 2 is fixed on the upper surface of the connecting plate 3. A limit plate 35 is fixed on the upper surface of the connecting rod 34. A fixing bearing 36 embedded in the inner wall of the device housing 1 is sleeved on the outer surface of the connecting rod 34. A limit ring 4 that is inserted and connected to the device housing 1 is fixed on the upper surface of the fixing plate 2. A fixing bolt 5 that abuts and connects to the limit ring 4 is installed on the outer wall of the device housing 1.

[0029] By adopting the above technical solution, before using the elevator balance compensation chain stress relief device, the device is first assembled in a suitable position, one end of the compensation chain body 33 is connected to the connector 32, and the connector 32 is fixed to the fixed seat 31. During use, when the compensation chain body 33 generates rotational stress, the connecting plate 3 can rotate through the fixed bearing 36 provided in the device housing 1 and with the cooperation of the connecting rod 34, thereby eliminating the stress generated by the compensation chain body 33. The limiting plate 35 provided on the connecting rod 34 can play a limiting role to prevent the connecting rod 34 from falling off. By unscrewing the fixing bolt 5 on the device housing 1, the fixing bolt 5 is separated from the outer surface of the limiting ring 4, so that the fixing plate 2 can be disassembled, which facilitates the disassembly and maintenance of the parts inside the device housing 1 and makes it easy to replace the parts individually.

[0030] Specifically, such as Figure 1 , Figure 2 and Figure 3As shown, the buffer mechanism includes a buffer component 6, which is positioned above the outer casing 1 of the device. The buffer component 6 has an internally connected mounting plate 61 that is fixedly connected to the outer casing 1 of the device. Guide rods 62 are fixed on both sides of the mounting plate 61. A buffer spring 63 is sleeved on the outer surface of the guide rod 62 and abuts against the mounting plate 61. An adjusting plate 64 is slidably connected to the outer surface of the guide rod 62 and abuts against the buffer spring 63. An adjusting screw 65 that is threadedly connected to the buffer component 6 is rotatably connected to one side of the adjusting plate 64 via a bearing. A fixed top plate 7 is fixed on the upper surface of the buffer component 6, and an expansion bolt 8 is installed inside the fixed top plate 7.

[0031] By adopting the above technical solution, the fixed top plate 7 is placed on the wall, and then the fixed top plate 7 is fixed with expansion bolts 8 to complete the assembly of the device. When the compensation chain body 33 shakes, the device housing 1 will have a horizontal displacement. Through the mounting plate 61 connected inside the buffer 6, the shaking of the device housing 1 will push the mounting plate 61 to move on the guide rod 62, thereby pushing the buffer spring 63 to compress, which plays a certain buffering role and can effectively reduce the damage to the device. By turning the adjusting screw 65 on the device housing 1, the adjusting plate 64 on the guide rod 62 can be moved, which can adjust the tension of the buffer spring 63, thereby ensuring that the buffer spring 63 absorbs the force when shaking.

[0032] Working principle: The compensating chain body 33 is connected to the connecting piece 32, and the connecting piece 32 is fixed to the fixed base 31. When the compensating chain body 33 generates rotational stress, the connecting plate 3 can rotate through the fixed bearing 36 provided inside the device housing 1, in cooperation with the connecting rod 34, thus eliminating the stress generated by the compensating chain body 33. The limiting plate 35 provided on the connecting rod 34 can limit the movement and prevent the connecting rod 34 from falling off. When the compensating chain body 33 shakes, the device housing 1 will generate horizontal displacement. Through the mounting plate 61 connected inside the buffer piece 6, the device... The shaking of the outer casing 1 will push the mounting plate 61 to move on the guide rod 62, which in turn will push the buffer spring 63 to compress, thus playing a certain buffering role and effectively reducing the possibility of damage to the device. By turning the adjusting screw 65 on the outer casing 1, the adjusting plate 64 on the guide rod 62 can be moved, which can adjust the tension of the buffer spring 63, thereby ensuring that the buffer spring 63 absorbs the force during shaking. By unscrewing the fixing bolt 5 on the outer casing 1, the fixing bolt 5 can be separated from the outer surface of the limit ring 4, and the fixing plate 2 can be disassembled, which facilitates the disassembly and maintenance of the internal parts of the outer casing 1.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A stress relief device for a balanced compensation chain in an elevator, comprising a device housing (1), characterized in that: The lower end of the device housing (1) is connected to a fixing plate (2), and a fixing mechanism for fixing the compensation chain is provided below the fixing plate (2), and a buffering mechanism for buffering the compensation chain is provided above the device housing (1). The fixing mechanism includes a connecting plate (3), which is fixed below the fixing plate (2). A fixing seat (31) is fixed on the lower surface of the connecting plate (3). A connector (32) is fixed to the lower end of the fixing seat (31) by bolts. A compensation chain body (33) is connected inside the connector (32). A connecting rod (34) that penetrates the interior of the fixing plate (2) is fixed on the upper surface of the connecting plate (3).

2. The elevator balance compensation chain stress relief device according to claim 1, characterized in that: A limiting plate (35) is fixed on the upper surface of the connecting rod (34), and a fixed bearing (36) embedded in the inner wall of the device housing (1) is sleeved on the outer surface of the connecting rod (34).

3. The elevator balance compensation chain stress relief device according to claim 1, characterized in that: The upper surface of the fixing plate (2) is fixed with a limiting ring (4) that is inserted into the device housing (1), and the outer wall of the device housing (1) is fitted with a fixing bolt (5) that abuts against the limiting ring (4).

4. The elevator balance compensation chain stress relief device according to claim 1, characterized in that: The buffer mechanism includes a buffer element (6), which is positioned above the device housing (1). The buffer element (6) has an internal mounting plate (61) that is fixedly connected to the device housing (1).

5. The elevator balance compensation chain stress relief device according to claim 4, characterized in that: Guide rods (62) are fixed on both sides of the mounting plate (61), and buffer springs (63) that abut against the mounting plate (61) are sleeved on the outer surface of the guide rods (62).

6. The elevator balance compensation chain stress relief device according to claim 5, characterized in that: The outer surface of the guide rod (62) is slidably connected to an adjusting plate (64) that abuts against the buffer spring (63). One side of the adjusting plate (64) is rotatably connected to an adjusting screw (65) that is threadedly connected to the buffer (6) via a bearing.

7. The elevator balance compensation chain stress relief device according to claim 6, characterized in that: The upper surface of the buffer (6) is fixed with a fixed top plate (7), and an expansion bolt (8) is installed inside the fixed top plate (7).

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