Passenger elevator counterweight

Abstract

The application provides a passenger elevator counterweight frame, which comprises a frame body for support, a mounting groove is formed on one side of the frame body, a plurality of counterweight blocks are placed in the mounting groove, a mounting plate is fixedly connected to the lower end of the frame body, a limiting assembly for blocking the counterweight blocks is mounted on one side of the mounting plate, and a pressing assembly for fixing the counterweight blocks is mounted on the upper end of the mounting plate. The limiting assembly mounted on the mounting plate blocks the counterweight blocks placed in the mounting groove to prevent the counterweight blocks from falling out. Meanwhile, the limiting assembly can be adjusted to quickly release or realize the blocking of the counterweight blocks, facilitating the installation and disassembly of the counterweight blocks. Meanwhile, the counterweight blocks are fixed by being pressed downward through the pressing assembly on the mounting plate, which is simple to operate. Through the synergistic effect of the limiting assembly and the pressing assembly, reliable constraint of the counterweight blocks is realized from different directions, effectively preventing the counterweight blocks from shaking or shifting during the operation of the elevator, and greatly improving the safety and maintenance convenience.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, and more specifically, to a counterweight frame for a passenger elevator. Background Technology

[0002] The counterweight is a key component of an elevator system. Its main function is to balance the weight of the elevator car and its load. The counterweight is usually installed in the elevator shaft and connected to the car by steel cables. It moves up and down by guide rails. The counterweight contains several counterweight blocks. By adjusting the number of counterweight blocks, the traction machine can overcome only a small weight difference between the car and the counterweight during elevator operation, thereby significantly reducing the load power of the motor, achieving energy saving, stable operation, and extending the equipment life. Therefore, the stability and reliability of the counterweight are directly related to the operating efficiency and safety of the entire elevator system.

[0003] In actual use and maintenance, existing elevator counterweight frames require frequent adjustments to the counterweight blocks within the frame based on the elevator's load capacity. Traditional counterweight frames typically use bolt-fixed baffles to prevent the counterweight blocks from dislodging during operation. Replacing the counterweight blocks requires manual disassembly of these fasteners, a cumbersome, time-consuming, and labor-intensive process, especially in the confined space of the shaft, increasing the workload and time required for maintenance personnel. Furthermore, to ensure the counterweight blocks do not wobble within the frame, current methods mostly use bolts and pressure plates for reinforcement, requiring specialized tools for adjustment, which is not convenient. Therefore, we propose an improvement: a passenger elevator counterweight frame. Summary of the Invention

[0004] The purpose of this utility model is to address the problem that traditional counterweight frames typically use bolted baffles to prevent the counterweight from coming off during operation. When replacing the counterweight, operators need to manually disassemble these fasteners, which is cumbersome, time-consuming, and labor-intensive, especially in confined spaces like shafts, making operation extremely inconvenient and increasing the labor intensity and working time for maintenance personnel. Furthermore, to ensure that the counterweight does not wobble within the frame, most current systems use bolts and pressure plates to reinforce the counterweight, requiring the use of special tools for adjustment, which is not convenient enough.

[0005] In order to achieve the above-mentioned objectives, this invention provides a passenger elevator counterweight to improve the aforementioned problems.

[0006] The application is as follows:

[0007] A counterweight frame for a passenger elevator includes a support frame. A mounting groove is provided on one side of the frame, and multiple counterweights are placed in the mounting groove. A mounting plate is fixedly connected to the lower end of the frame. A limiting component for blocking the counterweights is installed on one side of the mounting plate. A pressing component for fixing the counterweights is installed on the upper end of the mounting plate. Lifting ports are provided on both inner walls of the mounting groove, and two of the lifting ports extend to the outside and communicate with the outside.

[0008] As a preferred technical solution of this application, the limiting component includes a fixed rod, which is fixedly connected to one side of the mounting plate. Two symmetrically arranged sliding grooves are opened on one side of the fixed rod, and a moving rod is slidably connected in each of the two sliding grooves. A bidirectional screw is rotatably connected to the inner wall of the two sliding grooves. The bidirectional screw is rotatably sleeved in the fixed rod. A motor is fixedly installed on one side of the fixed rod, and the output end of the motor passes through the fixed rod and is fixedly connected to one end of the bidirectional screw.

[0009] As a preferred technical solution of this application, both of the moving rods are equipped with a snap-fit ​​assembly at their lower positions. The snap-fit ​​assembly includes a connecting block and a fixing block. The connecting block is fixedly connected to the lower position of the moving rod on the side away from the frame, and the fixing block is fixedly connected to the lower position of the frame on one side. The fixing block has a slot on the side near the moving rod.

[0010] As a preferred technical solution of this application, a sliding cavity is provided in the connecting block, and multiple springs are fixedly connected to the inner wall of the sliding cavity. A sliding plate is slidably connected in the sliding cavity, and the multiple springs are fixedly connected to one end of the sliding plate. A wedge block is fixedly connected to one end of the sliding plate near the frame. The wedge block passes through the connecting block and the moving rod, and the wedge block and the slot are engaged. A pull rod passes through one side of the connecting block, and one end of the pull rod is fixedly connected to the middle of one side of the sliding plate.

[0011] As a preferred technical solution of this application, the pressing component includes two upright plates. The two upright plates are fixedly connected to the upper sides of the mounting plate. Each of the two upright plates has a lifting groove on the side near the frame. A pressure plate is slidably connected between the two lifting grooves. The pressure plate is slidably connected in the two lifting ports.

[0012] As a preferred technical solution of this application, one of the lifting grooves is rotatably connected to the inner wall of the lifting groove, and the other lifting groove is fixedly connected to the inner wall of the lifting groove. The one-way screw passes through the pressure plate, and the pressure plate and the one-way screw are externally threaded together. The pressure plate is slidably sleeved on the outside of the guide rod.

[0013] As a preferred technical solution of this application, a rotating cavity is provided at the lower part of the interior of the upright plate equipped with a one-way screw. A first bevel gear and a second bevel gear are rotatably connected to the inner wall of the rotating cavity. The first bevel gear and the second bevel gear mesh with each other. The output end of the first bevel gear passes through the upright plate and is fixedly connected to the lower end of the one-way screw. A handle is rotatably connected to one side of the upright plate. The output end of the handle passes through the upright plate and is fixedly connected to one end of the second bevel gear.

[0014] As a preferred technical solution of this application, a fixing plate is fixedly sleeved on the outside of the handle, and an internal threaded hole is opened on the lower side of the upright plate on which the handle is provided. The fixing plate has a plurality of positioning holes arranged in a ring array, and a limit bolt is slidably connected in one of the positioning holes, and the limit bolt is threaded in the internal threaded hole.

[0015] As a preferred technical solution of this application, two guide plates are fixedly connected to the upper part of one side of the frame, and the two moving rods slide in the two guide plates respectively.

[0016] As a preferred technical solution of this application, two counterweight guide shoes are fixedly connected to both the upper and lower ends of the frame.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] In the scheme of this application:

[0019] To address the shortcomings of existing counterweight frames that typically use bolted baffles to prevent counterweights from detaching during operation, which require manual disassembly of these fasteners for counterweight replacement—a cumbersome, time-consuming, and labor-intensive process, especially in confined shafts—this application addresses these issues by using a limiting component and a locking mechanism. Furthermore, to ensure the counterweights remain stable within the frame, current methods often employ bolts and pressure plates for reinforcement, requiring specialized tools for adjustment, which is inconvenient. The synergistic effect of the connecting components utilizes a motor-driven bidirectional screw to control the movement of the moving rod, thereby quickly releasing or achieving obstruction of the counterweight, facilitating the installation and removal of the counterweight. Simultaneously, the locking component, through an automatic locking mechanism of springs and wedge blocks, ensures the mechanical stability of the moving rod in its fixed position, preventing accidental displacement. Furthermore, the pressing component, driven by manually rotating the handle, lowers the pressure plate to press and fix the counterweight. This simple operation, coupled with the ability to lock the position using limit bolts, further enhances the reliability of the counterweight's fixation and overall safety, improving maintenance efficiency. Attached Figure Description

[0020] Figure 1 A schematic diagram of the main structure of a passenger elevator counterweight frame provided in this application;

[0021] Figure 2 Another perspective schematic diagram of the main structure of a passenger elevator counterweight frame provided in this application;

[0022] Figure 3 A schematic diagram of a limiting component structure for a passenger elevator counterweight frame provided in this application;

[0023] Figure 4 This application provides a schematic diagram of the snap-fit ​​assembly structure for a passenger elevator counterweight.

[0024] Figure 5 A schematic diagram of the pressing component structure of a passenger elevator counterweight frame provided in this application;

[0025] Figure 6 This application provides a schematic diagram of a limit bolt structure for a passenger elevator counterweight frame.

[0026] The image shows:

[0027] 1. Frame; 2. Mounting slot; 3. Counterweight; 4. Mounting plate;

[0028] 5. Limiting assembly; 501. Fixed rod; 502. Sliding groove; 503. Moving rod; 504. Bidirectional screw; 505. Motor; 506. Connecting block; 507. Fixed block; 508. Slot; 509. Sliding cavity; 510. Spring; 511. Sliding plate; 512. Wedge block; 513. Pull rod;

[0029] 6. Pressing assembly; 601. Vertical plate; 602. Lifting groove; 603. Pressure plate; 604. One-way screw; 605. Guide rod; 606. Rotating cavity; 607. First bevel gear; 608. Second bevel gear; 609. Handle; 610. Fixing plate; 611. Internal threaded hole; 612. Positioning hole; 613. Limit bolt;

[0030] 7. Lifting port; 8. Guide plate; 9. Counterweight guide shoe. Detailed Implementation

[0031] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0032] As described in the background section, traditional counterweight frames typically use bolted baffles to prevent the counterweight from coming off during operation. When replacing the counterweight, operators need to manually disassemble these fasteners, which is a cumbersome, time-consuming, and labor-intensive process. This is especially inconvenient in the confined space of the shaft, increasing the labor intensity and working time of maintenance personnel. Furthermore, to ensure that the counterweight does not wobble within the frame, bolts are currently mostly used in conjunction with pressure plates to reinforce the counterweight, requiring the use of special tools for adjustment, which is not convenient enough.

[0033] To solve this technical problem, this utility model provides a passenger elevator counterweight frame, which is applied to elevator systems.

[0034] For details, please refer to Figures 1-6 A passenger elevator counterweight specifically includes:

[0035] The frame 1 is used for support. A mounting groove 2 is opened on one side of the frame 1. Multiple counterweights 3 are placed in the mounting groove 2. A mounting plate 4 is fixedly connected to the lower end of the frame 1. A limiting component 5 for blocking the counterweights 3 is installed on one side of the mounting plate 4. A pressing component 6 for fixing the counterweights 3 is installed on the upper end of the mounting plate 4. Lifting ports 7 are opened on both sides of the inner wall of the mounting groove 2. The two lifting ports 7 extend to the outside and communicate with the outside.

[0036] This utility model provides a counterweight frame for a passenger elevator. A limiting component 5 installed on the mounting plate 4 blocks the counterweight block 3 placed in the mounting groove 2 to prevent it from falling out. At the same time, the limiting component 5 is adjustable, so as to quickly release or achieve the blocking of the counterweight block 3, which facilitates the installation and disassembly of the counterweight block 3. Meanwhile, the counterweight block 3 is pressed down and fixed by the pressing component 6 on the mounting plate 4. The operation is simple. Through the synergistic effect of the limiting component 5 and the pressing component 6, the counterweight block 3 is reliably constrained from different directions, effectively preventing it from shaking or shifting during elevator operation, which greatly improves safety and maintenance convenience.

[0037] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0038] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0039] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0040] Example 1, please refer to Figures 1-6A counterweight frame for a passenger elevator includes a support frame 1. A mounting groove 2 is provided on one side of the frame 1, and multiple counterweight blocks 3 are placed in the mounting groove 2. A mounting plate 4 is fixedly connected to the lower end of the frame 1. A limiting component 5 for blocking the counterweight blocks 3 is installed on one side of the mounting plate 4. A pressing component 6 for fixing the counterweight blocks 3 is installed on the upper end of the mounting plate 4. Lifting ports 7 are provided on both inner walls of the mounting groove 2, extending to the outside and communicating with the outside. The limiting component 5 installed on the mounting plate 4 blocks the counterweight blocks 3 placed in the mounting groove 2 to prevent them from falling out. The limiting component 5 is adjustable, allowing for quick release or fixation of the blocking of the counterweight blocks 3, facilitating installation and removal. The counterweight blocks 3 are also fixed by pressing down on the upper part of the mounting plate 4 using the pressing component 6. The operation is simple. Through the synergistic effect of the limiting component 5 and the pressing component 6, reliable restraint is achieved on the counterweight blocks 3 from different directions, effectively preventing them from swaying or shifting during elevator operation, greatly improving safety and maintenance convenience.

[0041] Furthermore, such as Figures 1-3 As shown, the limiting component 5 includes a fixed rod 501, which is fixedly connected to one side of the mounting plate 4. Two symmetrically arranged sliding grooves 502 are formed on one side of the fixed rod 501. A movable rod 503 is slidably connected within each of the two sliding grooves 502. A bidirectional screw 504 is rotatably connected to the inner walls of the two sliding grooves 502. The bidirectional screw 504 is rotatably sleeved within the fixed rod 501. A motor 505 is fixedly installed on one side of the fixed rod 501. The output end of the motor 505 passes through the fixed rod 501 and is fixedly connected to the bidirectional screw 503. One end of the screw 504 is driven by the starter motor 505 to rotate within the fixed rod 501. The positive and negative threads of the screw force the two moving rods 503 to slide synchronously towards or away from each other within the sliding groove 502, realizing the electric and rapid opening and closing of the obstruction in front of the counterweight 3. When the moving rod 503 is blocking the counterweight 3, one side of the moving rod 503 is in close contact with the other side of the counterweight 3. When the moving rod 503 moves away, it is convenient to replace the counterweight 3. When it moves closer, it forms an effective obstruction, greatly improving the efficiency and convenience of maintenance operations.

[0042] Furthermore, such as Figures 3-4As shown, both movable rods 503 are equipped with snap-fit ​​components at their lower positions. Each snap-fit ​​component includes a connecting block 506 and a fixing block 507. The connecting block 506 is fixedly connected to the lower part of the movable rod 503 on the side away from the frame 1, and the fixing block 507 is fixedly connected to the lower part of the frame 1 on one side. A slot 508 is provided on the side of the fixing block 507 closest to the movable rod 503. A sliding cavity 509 is provided inside the connecting block 506. Multiple springs 510 are fixedly connected to the inner wall of the sliding cavity 509, allowing for sliding connections within the sliding cavity 509. A sliding plate 511 is provided, and multiple springs 510 are fixedly connected to one end of the sliding plate 511. A wedge block 512 is fixedly connected to the end of the sliding plate 511 near the frame 1. The wedge block 512 passes through the connecting block 506 and the moving rod 503, and the wedge block 512 and the slot 508 engage. A pull rod 513 passes through one side of the connecting block 506, and one end of the pull rod 513 is fixedly connected to the middle of one side of the sliding plate 511. When the moving rod 503 moves to the engaging position, the wedge block 510 on the connecting block 506... The inclined surface of 12 will contact the fixed block 507. The wedge block 512 will decompose the force, causing the spring 510 to contract under pressure. The wedge block 512 will temporarily contract. When the wedge block 512 is aligned with the slot 508, under the restoring force of the spring 510, the wedge block 512 will automatically slide into the slot 508, completing the mechanical locking. To unlock, the pull rod 513 will be pulled to overcome the spring force of the spring 510, causing the wedge block 512 to exit the slot 508. Then, a pad will be used to support the crossbar of the pull rod 513 and the connecting block. Between 506, to prevent the wedge block 512 from resetting, the motor 505 is then started to move the two moving rods 503 away from each other. Similarly, when it is necessary to move the moving rod 503 closer, the pad block can be removed in advance. The locking assembly realizes the automatic and reliable locking of the position of the moving rod 503, effectively preventing the moving rod 503 from shifting due to the rotation of the bidirectional screw 504 caused by vibration during elevator operation. At the same time, the design of the manual pull rod 513 provides a convenient unlocking method, taking into account both safety and ease of operation.

[0043] Example 2 further optimizes the passenger elevator counterweight provided in Example 1, specifically, as follows: Figure 5 and Figure 6As shown, the pressing component 6 includes two upright plates 601, which are fixedly connected to the upper sides of the mounting plate 4. Each of the two upright plates 601 has a lifting groove 602 on the side near the frame 1. A pressure plate 603 is slidably connected between the two lifting grooves 602. The pressure plate 603 is slidably connected in the two lifting ports 7. By driving the pressure plate 603, the pressure plate 603 slides vertically along the lifting grooves 602 on the two upright plates 601 and passes through the lifting ports 7 of the frame 1 to descend, thereby directly pressing the top of the counterweight 3 located in the mounting groove 2. The movable pressure plate 603 applies vertical pressure to the counterweight 3 from above, effectively limiting the up-and-down swaying of the counterweight 3 during elevator operation, and greatly improving the stability and safety of the counterweight 3.

[0044] Furthermore, such as Figure 5 and Figure 6 As shown, one of the lifting slots 602 has a one-way screw 604 rotatably connected to its inner wall, and the other lifting slot 602 has a guide rod 605 fixedly connected to its inner wall. The one-way screw 604 passes through the pressure plate 603, and the pressure plate 603 and the one-way screw 604 are externally threaded together. The pressure plate 603 is slidably sleeved on the outside of the guide rod 605. By rotating the one-way screw 604, the rotational motion is converted into the linear lifting motion of the pressure plate 603 by utilizing the threaded engagement between the one-way screw 604 and the pressure plate 603. At the same time, the guide rod 605 passes through the pressure plate 603 and restricts its rotation, ensuring that the pressure plate 603 slides stably along the preset path. This provides a stable, reliable driving force with a self-locking function, ensuring that the pressure plate 603 can vertically and smoothly press and release the counterweight 3, effectively preventing the pressure plate 603 from shifting or rotating under force, and improving the reliability of the fixation.

[0045] Furthermore, such as Figure 5 and Figure 6 As shown, a rotating cavity 606 is formed at the lower part of the interior of the upright plate 601, which is equipped with a one-way screw 604. A first bevel gear 607 and a second bevel gear 608 are rotatably connected to the inner wall of the rotating cavity 606. The first bevel gear 607 and the second bevel gear 608 mesh with each other. The output end of the first bevel gear 607 passes through the upright plate 601 and is fixedly connected to the lower end of the one-way screw 604. A handle 609 is rotatably connected to one side of the upright plate 601. The output end of the handle 609 passes through the upright plate 601 and is fixedly connected to one end of the second bevel gear 608. By manually rotating the handle 609, the second bevel gear 608 is driven to rotate, which in turn drives the meshing first bevel gear 607 to rotate. Finally, the power is transmitted to the one-way screw 604 to make it rotate, making the operation position more flexible and labor-saving. It realizes that the lifting and lowering of the pressure plate 603 can be controlled by simple manual rotation operation, which greatly improves the convenience and controllability of operation.

[0046] Furthermore, such as Figure 5 and Figure 6 As shown, a fixed plate 610 is fixedly sleeved on the outside of the grip 609. An internal threaded hole 611 is opened on the lower side of the upright plate 601 on which the grip 609 is located. Multiple positioning holes 612 are arranged in a ring array on the fixed plate 610. A limit bolt 613 is slidably connected in one of the positioning holes 612, and the limit bolt 613 is threaded into the internal threaded hole 611. When the pressure plate 603 is adjusted to the desired position by the grip 609, the limit bolt 613 is passed through one of the positioning holes 612 on the fixed plate 610 and screwed into the internal threaded hole 611 of the upright plate 601, thereby locking the grip 609 and the fixed plate 610 together. The mechanical interlocking method effectively prevents the grip 609 from rotating unexpectedly due to vibration or other reasons, ensuring that the pressing force applied by the pressure plate 603 is stable and long-lasting, and greatly improving the reliability and safety of the entire pressing assembly 6.

[0047] Example 3 further optimizes the passenger elevator counterweight provided in Example 1, specifically, as follows: Figure 1 As shown, two guide plates 8 are fixedly connected to the upper side of one side of the frame 1. Two moving rods 503 slide in the two guide plates 8 respectively. By sliding the ends of the two moving rods 503 in the two guide plates 8 fixed on the frame 1 respectively, external support and guidance are provided for the horizontal movement of the moving rods 503, which greatly enhances the structural rigidity and stability of the moving rods 503 and ensures the reliability and safety of the limit assembly 5.

[0048] Furthermore, such as Figure 1 and Figure 2 As shown, two counterweight guide shoes 9 are fixedly connected to the upper and lower ends of the frame 1. The counterweight guide shoes 9 provide precise guidance for the vertical movement of the entire frame 1 by closely cooperating with and sliding along the guide rail in the elevator shaft. This effectively limits the lateral swaying and torsion of the frame 1 during operation, ensuring smooth operation, lower noise, and reducing abnormal wear, thereby improving the safety and service life of the elevator system.

[0049] The usage process of the passenger elevator counterweight frame provided by this utility model is as follows:

[0050] When it is necessary to disassemble or assemble the counterweight 3, the operator first pulls the lever 513 outward. The lever 513 drives the sliding plate 511 to compress the spring 510 in the sliding cavity 509 and move backward, causing the wedge block 512 fixed on the sliding plate 511 to exit from the slot 508 of the fixed block 507. The mechanical lock between the moving rod 503 and the frame 1 is released. Then, the motor 505 is started. The output end of the motor 505 drives the bidirectional screw 504 to rotate. Since the two moving rods 503 are respectively threaded onto the positive and negative thread sections of the bidirectional screw 504 and slide in the sliding groove 502, they will move away from each other synchronously. Under the guidance of the guide plate 8, the moving rods 503 move smoothly from the position that was originally blocking the front of the counterweight 3 to both sides of the frame 1, making room for the vertical removal of the counterweight 3. At this time, there is no obstruction in front of the counterweight 3, and the maintenance personnel can complete the disassembly or assembly of the counterweight. After the counterweight 3 is installed in place, the motor 505 is restarted to reverse its direction, driving the bidirectional screw 504 to rotate in the opposite direction. This causes the two moving rods 503 to move closer to each other and move back to the front of the counterweight 3 to form a block, thus quickly releasing or achieving the blockage of the counterweight 3. This facilitates the installation and removal of the counterweight 3 and improves maintenance efficiency. When the moving rod 503 reaches the correct position, the inclined surface of the wedge block 512 on the connecting block 506 will contact the fixed block 507. The wedge block 512 decomposes the force, causing the spring 510 to be compressed. The wedge block 512 temporarily contracts. When the wedge block 512 is aligned with the slot 508, under the restoring force of the spring 510, the wedge block 512 automatically slides into the slot 508, completing the mechanical locking without manual intervention. This achieves automatic locking and ensures that the moving rod 503 will not move in a vibration environment, greatly improving safety.

[0051] The operator rotates the handle 609, which drives the second bevel gear 608 to rotate. The first bevel gear 607, which meshes with the second bevel gear 608, rotates accordingly. The first bevel gear 607 drives the one-way screw 604 to rotate. Since the pressure plate 603 is threadedly connected to the one-way screw 604, and its other side is slidably sleeved on the guide rod 605, the rotational motion is converted into linear motion, driving the pressure plate 603 to move downwards along the lifting groove 602 and the lifting port 7. The lower surface of the pressure plate 603 finally presses down. The counterweight 3 is tightened onto its top surface, thus eliminating any vertical wobble gap. Once the clamping force is appropriate, the limiting bolt 613 is passed through one of the positioning holes 612 on the fixed plate 610 and screwed into the internal threaded hole 611 of the upright plate 601. This locks the handle 609 and the entire transmission system, preventing the pressure plate 603 from loosening and retracting due to vibration. This ensures the durability of the clamping effect, further enhances the fixing reliability and overall safety of the counterweight, and improves maintenance efficiency.

[0052] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0053] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this 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 specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A counterweight frame for a passenger elevator, characterized in that, The device includes a support frame (1), a mounting groove (2) on one side of the frame (1), a plurality of counterweights (3) placed in the mounting groove (2), a mounting plate (4) fixedly connected to the lower end of the frame (1), a limiting component (5) for blocking the counterweights (3) installed on one side of the mounting plate (4), a pressing component (6) for fixing the counterweights (3) installed on the upper end of the mounting plate (4), and lifting ports (7) on both sides of the inner wall of the mounting groove (2), with the two lifting ports (7) extending to the outside and communicating with the outside.

2. The passenger elevator counterweight frame according to claim 1, characterized in that, The limiting component (5) includes a fixed rod (501), which is fixedly connected to one side of the mounting plate (4). Two symmetrically arranged sliding grooves (502) are opened on one side of the fixed rod (501). A moving rod (503) is slidably connected in each of the two sliding grooves (502). A bidirectional screw (504) is rotatably connected to the inner wall of the two sliding grooves (502). The bidirectional screw (504) is rotatably sleeved in the fixed rod (501). A motor (505) is fixedly installed on one side of the fixed rod (501). The output end of the motor (505) passes through the fixed rod (501) and is fixedly connected to one end of the bidirectional screw (504).

3. A passenger elevator counterweight frame according to claim 2, characterized in that, Both of the movable rods (503) are equipped with a snap-fit ​​assembly at their lower positions. The snap-fit ​​assembly includes a connecting block (506) and a fixing block (507). The connecting block (506) is fixedly connected to the lower position of the movable rod (503) on the side away from the frame (1). The fixing block (507) is fixedly connected to the lower position of the frame (1) on the side. The fixing block (507) has a slot (508) on the side near the movable rod (503).

4. A passenger elevator counterweight frame according to claim 3, characterized in that, The connecting block (506) has a sliding cavity (509) inside. Multiple springs (510) are fixedly connected to the inner wall of the sliding cavity (509). A sliding plate (511) is slidably connected inside the sliding cavity (509). Multiple springs (510) are fixedly connected to one end of the sliding plate (511). A wedge block (512) is fixedly connected to one end of the sliding plate (511) near the frame (1). The wedge block (512) passes through the connecting block (506) and the moving rod (503), and the wedge block (512) and the slot (508) are engaged. A pull rod (513) passes through one side of the connecting block (506). One end of the pull rod (513) is fixedly connected to the middle of one side of the sliding plate (511).

5. A passenger elevator counterweight frame according to claim 1, characterized in that, The pressing component (6) includes two upright plates (601). The two upright plates (601) are fixedly connected to the upper sides of the mounting plate (4). The two upright plates (601) are provided with lifting grooves (602) on the side of the frame (1) near the frame. A pressure plate (603) is slidably connected between the two lifting grooves (602). The pressure plate (603) is slidably connected in the two lifting ports (7).

6. A passenger elevator counterweight frame according to claim 5, characterized in that, One of the lifting grooves (602) has a one-way screw (604) rotatably connected to its inner wall, and the other lifting groove (602) has a guide rod (605) fixedly connected to its inner wall. The one-way screw (604) passes through the pressure plate (603), and the pressure plate (603) and the one-way screw (604) are externally threaded together. The pressure plate (603) is slidably sleeved on the outside of the guide rod (605).

7. A passenger elevator counterweight frame according to claim 6, characterized in that, A rotating cavity (606) is provided at the lower part of the interior of the upright plate (601) equipped with a one-way screw (604). A first bevel gear (607) and a second bevel gear (608) are rotatably connected to the inner wall of the rotating cavity (606). The first bevel gear (607) and the second bevel gear (608) mesh with each other. The output end of the first bevel gear (607) passes through the upright plate (601) and is fixedly connected to the lower end of the one-way screw (604). A handle (609) is rotatably connected to one side of the upright plate (601). The output end of the handle (609) passes through the upright plate (601) and is fixedly connected to one end of the second bevel gear (608).

8. A passenger elevator counterweight frame according to claim 7, characterized in that, The handle (609) is externally fitted with a fixing plate (610). An internal threaded hole (611) is provided on the lower side of the upright plate (601) on which the handle (609) is provided. The fixing plate (610) is provided with a plurality of positioning holes (612) arranged in a ring array. A limit bolt (613) is slidably connected in one of the positioning holes (612), and the limit bolt (613) is threaded in the internal threaded hole (611).

9. A passenger elevator counterweight frame according to claim 2, characterized in that, Two guide plates (8) are fixedly connected to one side of the frame (1) near the top, and the two moving rods (503) slide in the two guide plates (8) respectively.

10. A passenger elevator counterweight frame according to claim 1, characterized in that, The frame (1) has two counterweight guide shoes (9) fixedly connected to its upper and lower ends.

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