Compensation device suitable for shallow pit

Abstract

The utility model relates to a compensation device suitable for a shallow pit, which comprises a compensation cable, and the bottom of the compensation cable is connected with a shallow pit guide assembly arranged on the ground under the compensation cable in a rolling and penetrating manner; the shallow pit guide assembly comprises a mounting plate fixedly connected to the ground, a first supporting rod is vertically and fixedly connected to the middle of the top face of the mounting plate, a first suspension frame of an inverted-U-shaped structure is fixedly connected to the top face of the first supporting rod, and a supporting wheel is rotationally connected into the first suspension frame. Second supporting rods are vertically and symmetrically arranged on the two sides of the first supporting rod respectively, second suspension frames of U-shaped structures are fixedly connected to the top faces of the second supporting rods, guide wheels are rotationally connected into the second suspension frames, the guide wheels and the supporting wheels are the same in specification and located in the same vertical plane, and the axes of the guide wheels are higher than the axes of the supporting wheels. The bottom of the compensation cable is wound and connected between the supporting wheel and the two guide wheels in a penetrating mode according to the W-shaped trend. The compensation device provided by the utility model reduces the bottom operation space of the compensation cable by interfering with the bottom operation track of the compensation cable, thereby adapting to the shallow pit design.

Description

Technical Field

[0001] This utility model belongs to the field of elevator parts technology, and specifically relates to a compensation device suitable for shallow pits. Background Technology

[0002] With the continuous development of urbanization, elevators have become an indispensable part of people's daily lives. The scarcity of urban land resources has led to the current situation of ever-increasing building heights. For elevators in high-rise buildings, the importance of the elevator compensation system has become increasingly significant. The swaying of the compensation cable is also more pronounced when the elevator is running at high speed. If the swaying is not limited, it is very easy for the compensation cable to snag on the shaft fixing components, creating a hazard. At the same time, it will also increase the noise of the elevator operation.

[0003] Typically, to allow the compensating cable to move freely, existing conventional guide assemblies for wheeled systems are set at a height of approximately 800-1500mm, meaning they must be positioned as follows: Figure 1 Above the arc of the compensation cable shown, the radius of the arc is generally above 400mm, while the actual height of the compensation cable from the ground must be above 200mm. Therefore, there is a requirement for the depth of the building pit, that is, the pit depth must be greater than 600mm. However, in reality, some buildings do not have such a deep pit, which makes conventional elevator compensation devices unable to meet the requirements. Therefore, there is an urgent need for a compensation device suitable for shallow pits. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a compensation device suitable for shallow pits. The specific technical solution is as follows:

[0005] This utility model provides a compensation device suitable for shallow pits, including a compensation cable. One end of the compensation cable is connected to a counterweight, and the other end is connected to a car. The bottom of the compensation cable is rolled through a shallow pit guide assembly set on the ground directly below it.

[0006] The shallow pit guide assembly includes a mounting plate fixed to the ground. A support rod is vertically fixed to the center of the top surface of the mounting plate. An inverted U-shaped suspension is fixed to the top surface of the support rod, and a support wheel is rotatably connected inside the suspension. Support rods are vertically symmetrically arranged on both sides of the support rod. A U-shaped suspension is fixed to the top surface of the support rod, and a guide wheel is rotatably connected inside the suspension. The guide wheel and the support wheel are of the same specifications and are located in the same vertical plane, with the axis of the guide wheel higher than the axis of the support wheel. The bottom of the compensation cable is wound and threaded between the support wheel and the two guide wheels in a "W" shaped pattern.

[0007] As a preferred technical scheme of the utility model, the second supporting rod is connected with the top surface of the mounting plate through horizontal sliding connection, and the first supporting rod and the second supporting rod are connected with the buffer element through horizontal and vertical suspension.

[0008] As a preferred technical scheme of the utility model, the buffer element is a gas pressure supporting rod, one end of the gas pressure supporting rod is connected with the side surface of the first supporting rod, and the other end of the gas pressure supporting rod is connected with the side surface of the second supporting rod.

[0009] As a preferred technical scheme of the utility model, the buffer element is a spring element, the spring element comprises a reset spring arranged horizontally, the reset spring is axially and symmetrically fixedly connected with a backing plate at both ends, and the outer end surfaces of the two backing plates are axially and vertically connected with horizontal rods respectively; the outer end of one of the horizontal rods is connected with the side surface of the first supporting rod, and the outer end of the other horizontal rod is connected with the side surface of the second supporting rod; the reset spring is axially sleeved with an extension shield, and the end surface of the extension shield is vertically and fixedly connected with the inner end surface of the corresponding backing plate.

[0010] As a preferred technical scheme of the utility model, the two ends of the gas pressure supporting rod are detachably connected with the side surface of the first supporting rod or the side surface of the second supporting rod through the fixed supporting assembly matched therewith.

[0011] As a preferred technical scheme of the utility model, the two ends of the gas pressure supporting rod are detachably connected with the side surface of the first supporting rod or the side surface of the second supporting rod through the fixed supporting assembly matched therewith.

[0012] As a preferred technical scheme of the utility model, the fixed supporting assembly comprises a U-shaped frame, the bottom surface of the U-shaped frame is vertically and fixedly connected with the side surface of the first supporting rod or the side surface of the second supporting rod, a fixed block is clamped in the inner gap of the U-shaped frame, and the fixed block and the U-shaped frame are fixedly connected through the fastening bolt matched therewith; the two ends of the gas pressure supporting rod are horizontally and vertically fixedly connected with the fixed block of the corresponding fixed supporting assembly.

[0013] As a preferred technical scheme of the utility model, the fixed supporting assembly comprises a U-shaped frame, the bottom surface of the U-shaped frame is vertically and fixedly connected with the side surface of the first supporting rod or the side surface of the second supporting rod, a fixed block is clamped in the inner gap of the U-shaped frame, and the fixed block and the U-shaped frame are fixedly connected through the fastening bolt matched therewith; the two ends of the gas pressure supporting rod are horizontally and vertically fixedly connected with the fixed block of the corresponding fixed supporting assembly.

[0014] As a preferred technical scheme of the utility model, the bottom surface of the second supporting rod is connected with the sliding assembly arranged horizontally on the top surface of the mounting plate.

[0015] The sliding assembly includes a slide rail horizontally disposed on the top surface of the mounting plate. The slide rail has an "I" shaped cross section. A slide table is horizontally slidably connected to the slide rail. The top surface of the slide table is perpendicularly fixed to the bottom surface of the corresponding support rod. Baffles are perpendicularly attached to both ends of the slide rail.

[0016] The beneficial effects of this utility model are:

[0017] The compensation device of this utility model reduces the running space at the bottom of the compensation cable by intervening in the running trajectory of the compensation cable, thereby adapting to the shallow pit design; in the shallow pit, the shallow pit guide component of the compensation device can operate normally.

[0018] By placing the shallow pit guide assembly on the ground directly below the compensating cable and using a specific "W"-shaped rolling winding and threading design, the requirement for pit depth is successfully reduced, ensuring the stable operation of the compensating cable and avoiding snagging with the hoistway fixing components. This design allows for the effective installation and use of elevator compensating devices even in shallow pits.

[0019] The components of the shallow pit guide assembly are arranged and connected in a reasonable manner to form a stable and efficient guide system. The compensating cable is tensioned, wound, and attached to the guide wheel and the support wheel. The support wheel can prevent the compensating cable from drooping and touching the bottom, which would cause the compensating cable to jump and create danger. Attached Figure Description

[0020] Figure 1 This diagram illustrates the operation of a conventional guide assembly in the prior art.

[0021] Figure 2 A schematic diagram of the shallow pit guide assembly in Embodiment 2 of this utility model is shown;

[0022] Figure 3 This diagram illustrates the operation of the shallow pit guide assembly in Embodiment 2 of this utility model.

[0023] Figure 4 A schematic diagram of the shallow pit guide assembly in Embodiment 3 of this utility model is shown;

[0024] Figure 5 A cross-sectional view of the spring component in this utility model is shown;

[0025] Figure 6 A working demonstration diagram of the shallow pit guide component in Embodiment 3 of this utility model is shown.

[0026] As shown in the figure: 1, compensation cable; 11, counterweight; 12, car; 2, conventional guide assembly; 3, shallow pit guide assembly; 31, mounting plate; 32, support rod one; 33, support wheel; 331, suspension one; 34, support rod two; 35, guide wheel; 351, suspension two; 36a, air pressure strut; 36b, spring piece; 361, crossbar; 362, pad plate; 363, return spring; 3631, telescopic cover; 37, sliding assembly; 371, slide rail; 372, slide table; 373, baffle; 38, fixed support assembly; 381, U-shaped frame; 382, fixed block; 383, fastening bolt. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model is further described in detail below with examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0028] Example one

[0029] To solve the technical problems in the background art, a compensation device suitable for shallow pit is given as follows:

[0030] In combination with Figures 2 to 4 and Figure 6 shown, a compensation device suitable for shallow pit includes compensation cable 1, one end of which is connected with counterweight 11, and the other end of which is connected with car 12, the bottom of compensation cable 1 is rolled and connected with shallow pit guide assembly 3 arranged on the ground directly below.

[0031] The shallow pit guide assembly 3 includes mounting plate 31 fixed to the ground, support rod one 32 vertically fixed to the middle of the top surface of mounting plate 31, suspension one 331 of inverted U-shaped structure fixed to the top surface of support rod one 32, and support wheel 33 rotatably connected in suspension one 331; support rod two 34 is vertically and symmetrically arranged on both sides of support rod one 32, suspension two 351 of U-shaped structure is fixed to the top surface of support rod two 34, guide wheel 35 is rotatably connected in suspension two 351, guide wheel 35 and support wheel 33 are of the same specification and are in the same vertical plane, and the axis of guide wheel 35 is higher than that of support wheel 33; compensation cable 1 at the bottom is wound and connected between support wheel 33 and two guide wheels 35 in "W" shape.

[0032] By adopting the above technical scheme, the compensation device can adapt to the design of shallow pit by interfering with the running track of the bottom of compensation cable 1 and reducing the running space of the bottom of compensation cable 1; when the pit is shallow, the shallow pit guide assembly 3 of the compensation device can run normally.

[0033] By placing the shallow pit guide assembly 3 on the ground directly below the compensation cable 1 and using a specific "W"-shaped rolling winding and threading design, the requirement for pit depth is successfully reduced, ensuring the stable operation of the compensation cable 1 and avoiding hooking with the hoistway fixing components. This design allows the elevator compensation device to be effectively installed and used even when the pit depth is shallow.

[0034] The components of the shallow pit guide assembly 3 are arranged and connected in a reasonable manner to form a stable and efficient guide system. The compensating cable 1 is tensioned and wrapped around the guide wheel 35 and the support wheel 33. The support wheel 33 can prevent the compensating cable 1 from drooping and touching the bottom, which would cause the compensating cable 1 to jump and cause danger.

[0035] Example 2

[0036] Combination Figures 2 to 4 As shown, based on the above embodiments, this embodiment further provides the following:

[0037] In this embodiment, as Figure 2 and Figure 4 As shown, the bottom surface of the second support rod 34 is slidably connected to the top surface of the mounting plate 31, and a buffer element is slidably suspended between the first support rod 32 and the corresponding second support rod 34.

[0038] By adopting the above technical solution, the bottom surface of the second support rod 34 is laterally slidably connected to the top surface of the mounting plate 31, and the addition of the buffer element makes the guide wheel 35 form a lateral buffer design. This can reduce the shaking caused by the pull of the elevator and improve the elevator comfort. When the elevator accelerates to start, the tension of the compensation cable 1 and the guide wheel 35 can be reduced, thereby extending the service life of the compensation cable 1 and the guide wheel 35. When the elevator is running normally, the compensation cable 1 and the guide wheel 35 can be reset in time to maintain the stable operation of the elevator.

[0039] like Figure 2 and Figure 4 As shown, the bottom surface of the second support rod 34 is connected to the sliding assembly 37, which is horizontally disposed on the top surface of the mounting plate 31;

[0040] The sliding assembly 37 includes a slide rail 371 horizontally disposed on the top surface of the mounting plate 31. The slide rail 371 has an "I" shaped longitudinal section. A slide table 372 is horizontally slidably connected to the slide rail 371. The top surface of the slide table 372 is perpendicularly fixed to the bottom surface of the corresponding support rod 34. Baffles 373 are perpendicularly attached to both ends of the slide rail 371.

[0041] By adopting the above technical solution, the sliding component 37, through the cooperation of the slide rail 371 and the slide table 372, realizes the lateral sliding connection of the second support rod 34 on the top surface of the mounting plate 31.

[0042] The longitudinal section of the slide rail 371 is an "I" shaped structure, which enhances the strength and stability of the slide rail 371. At the same time, the close fit between the slide table 372 and the slide rail 371 reduces swaying during lateral movement and improves the overall stability and durability of the compensation device.

[0043] The slide rail 371 has baffles 373 attached vertically to both ends. These baffles 373 limit the sliding range of the slide table 372 and prevent the second support rod 34 from exceeding the predetermined safe area during sliding. This design ensures the safety of the compensation device during operation and avoids dangerous situations caused by excessive sliding of the second support rod 34.

[0044] like Figure 2 and Figure 3 As shown, the buffer element is a pneumatic strut 36a. One end of the pneumatic strut 36a is connected to the side of the corresponding support rod 32, and the other end is connected to the side of the corresponding support rod 34.

[0045] By adopting the above technical solution, one end of the pneumatic strut 36a is connected to the side of the first support rod 32, and the other end is connected to the side of the second support rod 34, providing stable lateral buffer support for the second support rod 34; this can reduce the swaying of the elevator caused by pulling and improve the elevator comfort.

[0046] like Figure 2 As shown, the two ends of the pneumatic strut 36a are detachably connected to the side of the corresponding support rod 32 or the side of the support rod 34 via a matching fixed support assembly 38.

[0047] By adopting the above technical solution, when the pneumatic strut 36a needs to be replaced or maintained, the pneumatic strut 36a can be easily removed simply by loosening the connecting part of the fixed support assembly 38. This design reduces maintenance costs and time and improves work efficiency.

[0048] like Figure 2 As shown, the fixed support assembly 38 includes a U-shaped frame 381. The bottom surface of the U-shaped frame 381 is perpendicularly fixed to the side of the corresponding support rod 32 or the side of the support rod 34. A fixing block 382 is inserted into the U-shaped frame 381 through a gap. The fixing block 382 and the U-shaped frame 381 are fixedly connected by a matching fastening bolt 383. The two ends of the pneumatic support rod 36a are respectively horizontally and vertically fixed to the fixing block 382 corresponding to the fixed support assembly 38.

[0049] By adopting the technical scheme, the U-shaped frame 381 can be firmly supported on the first supporting rod 32 or the second supporting rod 34 and is not prone to shaking or deformation; the fixed block 382 is gap-connected in the U-shaped frame 381 and is fixedly connected with the U-shaped frame 381 through the fastening bolt 383, and the connection mode ensures the stability of the fixed block 382 and further ensures the stable connection between the air pressure supporting rod 36a and the first supporting rod 32 or the second supporting rod 34.

[0050] The design of the fixed support assembly 38 makes the installation process of the air pressure supporting rod 36a more convenient; when the air pressure supporting rod 36a needs to be replaced or maintained, the air pressure supporting rod 36a can be easily removed from the fixed block 382 by loosening the fastening bolt 383, and the design reduces the maintenance cost and time and improves the work efficiency.

[0051] Embodiment three

[0052] In combination Figures 4 to 6 with the above embodiments, the embodiment further provides the following content:

[0053] In the embodiment, as Figures 4 to 6 shown, the buffer element is a spring piece 36b, the spring piece 36b includes a transversely arranged return spring 363, the return spring 363 has a pad 362 axially and symmetrically fixed at each end, and the outer end of each pad 362 is axially and perpendicularly connected with a cross bar 361; the outer end of one cross bar 361 is connected with the side surface of the corresponding first supporting rod 32, and the outer end of the other cross bar 361 is connected with the side surface of the corresponding second supporting rod 34; the return spring 363 is axially sleeved with an extension shield 3631, and the end surface of the extension shield 3631 is perpendicularly fixed with the inner end surface of the corresponding pad 362.

[0054] By adopting the technical scheme, the return spring 363 in the spring piece 36b has excellent elastic recovery capacity, the pad 362 serves as a connecting piece between the return spring 363 and the cross bar 361, which ensures the stable transmission of the spring force, and the cross bar 361 transmits the spring force to the first supporting rod 32 and the second supporting rod 34, thereby providing stable transverse buffer support for the second supporting rod 34; in this way, the elevator can reduce shaking caused by pulling and improve the comfort of the elevator;

[0055] The extension shield 3631 is sleeved outside the return spring 363, which can effectively prevent dust, sundries and the like from entering the inside of the return spring 363 and avoid damaging the return spring 363; at the same time, the extension shield 3631 can also prevent the return spring 363 from deforming or breaking when subjected to external force to a certain extent and prolong the service life of the return spring 363.

[0056] As Figure 4As shown, the outer ends of the two cross bars 361 of the spring member 36b are detachably connected with the side of the corresponding support bar one 32 or support bar two 34 through the fixed support assembly 38 matched therewith.

[0057] By adopting the above technical scheme, when the spring member 36b needs to be replaced or maintained, the spring member 36b can be easily removed by loosening the connecting part of the fixed support assembly 38, which reduces the maintenance cost and time and improves the work efficiency.

[0058] As shown, Figure 4 As shown, the fixed support assembly 38 comprises a U-shaped frame 381, the bottom surface of the U-shaped frame 381 is vertically fixedly connected with the side of the corresponding support bar one 32 or support bar two 34, a fixed block 382 is clamped in the inner gap of the U-shaped frame 381, and the fixed block 382 and the U-shaped frame 381 are fixedly connected through the fastening bolt 383 matched therewith; the outer ends of the two cross bars 361 of the spring member 36b are vertically and fixedly connected with the fixed block 382 of the corresponding fixed support assembly 38.

[0059] By adopting the above technical scheme, the U-shaped frame 381 can be firmly supported on the support bar one 32 or support bar two 34 and is not easy to shake or deform; the fixed block 382 is clamped in the U-shaped frame 381 and is fixedly connected with the U-shaped frame 381 through the fastening bolt 383, and this connection mode ensures the stability of the fixed block 382 and further ensures the stable connection between the cross bar 361 and the support bar one 32 or support bar two 34.

[0060] The design of the fixed support assembly 38 makes the installation process of the spring member 36b more convenient; when the spring member 36b needs to be replaced or maintained, the spring member 36b can be easily removed from the fixed block 382 by loosening the fastening bolt 383, which reduces the maintenance cost and time and improves the work efficiency.

[0061] The working principle and use process of the utility model are as follows:

[0062] In use, when the elevator runs, the counterweight 11 connected with one end of the compensation cable 1 and the car 12 connected with the other end of the compensation cable 1 move up and down with the elevator; the compensation cable 1 is wound and connected between the support wheel 33 and the two guide wheels 35 in the "W" type, which can not only interfere with the running track of the bottom part of the compensation cable 1 and reduce the running space of the bottom part of the compensation cable 1, so as to adapt to the shallow pit design, but also ensure that the compensation cable 1 remains stable during movement.

[0063] When the elevator is ascending or descending, the compensation cable 1 rolls on the support wheel 33 and the guide wheel 35, the support rod two 34 slides on the mounting plate 31 through the sliding assembly 37, and the buffer element arranged transversely between the support rod two 34 and the support rod one 32, so that the guide wheel 35 forms a transverse buffer design, which can reduce the shaking of the elevator caused by pulling and improve the comfort of the elevator; when the elevator starts to accelerate, the tension of the compensation cable 1 and the guide wheel 35 can be reduced, thereby prolonging the service life of the compensation cable 1 and the guide wheel 35; when the elevator is running normally, the compensation cable 1 and the guide wheel 35 can be reset in time, so that the running stability of the elevator is maintained.

[0064] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A compensation device suitable for a shallow pit, comprising a compensation cable (1), one end of which is connected to a counterweight (11) and the other end of which is connected to a car (12), characterized in that: The compensation cable (1) bottom and the shallow bottom pit guide assembly (3) arranged on the ground directly below it roll through the interface; The shallow bottom pit guide assembly (3) includes a mounting plate (31) fixed to the ground, a vertical support rod (32) is fixed to the top surface of the mounting plate (31), a suspension (331) with inverted U-shaped structure is fixed to the top surface of the support rod (32), and a support wheel (33) is rotatably connected in the suspension (331); two vertical support rods (34) are symmetrically arranged on both sides of the support rod (32), a suspension (351) with U-shaped structure is fixed to the top surface of the support rod (34), a guide wheel (35) is rotatably connected in the suspension (351), the guide wheel (35) and the support wheel (33) are the same size and are in the same vertical plane, and the shaft center of the guide wheel (35) is higher than that of the support wheel (33); the bottom of the compensation cable (1) is wound through the interface between the support wheel (33) and the two guide wheels (35) in a "W" shape.

2. A compensation device for shallow pits according to claim 1, characterized in that: The bottom surface of the support rod (34) is transversely and slidably connected to the top surface of the mounting plate (31), and a buffer element is transversely and vertically suspended between the support rod (32) and the corresponding support rod (34).

3. A compensation device for shallow pits according to claim 2, characterized in that: The buffer element is a gas pressure support rod (36a), one end of the gas pressure support rod (36a) is connected to the side surface of the corresponding support rod (32), and the other end is connected to the side surface of the corresponding support rod (34).

4. A compensation device for shallow pits according to claim 2, characterized in that: The buffer element is a spring element (36b), which includes a reset spring (363) arranged transversely, two ends of the reset spring (363) are axially and symmetrically fixed with a backing plate (362), and the outer end surfaces of the two backing plates (362) are axially and vertically connected with a cross bar (361); one end of the cross bar (361) is connected to the side surface of the corresponding support rod (32), and the other end is connected to the side surface of the corresponding support rod (34); the reset spring (363) is axially sleeved with a telescopic cover (3631), and the end surface of the telescopic cover (3631) is vertically fixed to the inner end surface of the corresponding backing plate (362).

5. A compensation device for shallow pits according to claim 3, characterized in that: The two ends of the gas pressure support rod (36a) are detachably connected to the side surface of the corresponding support rod (32) or the side surface of the corresponding support rod (34) through a corresponding fixed support assembly (38).

6. A compensation device for shallow pits according to claim 4, characterized in that: The two cross bars (361) of the spring element (36b) are detachably connected to the side surface of the corresponding support rod (32) or the side surface of the corresponding support rod (34) through a corresponding fixed support assembly (38).

7. A compensation device for shallow pits according to claim 5, characterized in that: The fixed support assembly (38) includes a U-shaped bracket (381), the bottom surface of the U-shaped bracket (381) is vertically fixed to the side surface of the corresponding support rod (32) or the side surface of the corresponding support rod (34), a fixed block (382) is clamped in the U-shaped bracket (381), and the fixed block (382) and the U-shaped bracket (381) are fixedly connected through a corresponding fastening bolt (383); the two ends of the gas pressure support rod (36a) are transversely and vertically fixed to the fixed block (382) of the corresponding fixed support assembly (38).

8. A compensation device for shallow pits according to claim 6, characterized in that: The fixed support assembly (38) includes a U-shaped frame (381), the bottom surface of which is perpendicularly fixed to the side of the corresponding support rod one (32) or the side of the support rod two (34). A fixing block (382) is inserted into the U-shaped frame (381) with a gap. The fixing block (382) and the U-shaped frame (381) are fixedly connected by a matching fastening bolt (383). The outer ends of the two horizontal bars (361) of the spring member (36b) are respectively perpendicularly fixed to the fixing block (382) of the corresponding fixed support assembly (38).

9. A compensation device for shallow pits according to claim 2, characterized in that: The bottom surface of the second support rod (34) is connected to the sliding assembly (37) which is laterally arranged on the top surface of the mounting plate (31); The sliding assembly (37) includes a slide rail (371) horizontally disposed on the top surface of the mounting plate (31). The slide rail (371) has an "I" shaped cross section. A slide table (372) is horizontally slidably connected to the slide rail (371). The top surface of the slide table (372) is perpendicularly fixed to the bottom surface of the corresponding support rod (34). Baffles (373) are perpendicularly attached to both ends of the slide rail (371).

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