Passenger elevator car frame

Abstract

The application provides a passenger elevator car frame, which comprises two supporting columns, two placement grooves are formed at the two ends of each of the two supporting columns, four placement grooves are grouped in pairs, a supporting rod is placed in each of the groups of placement grooves, two supporting rods are arranged in an up-down distribution mode, two clamping grooves are formed at one side of each of the two supporting rods, and two clamping assemblies are mounted at one side of each of the two supporting columns. The clamping assembly and the clamping groove of the supporting rod are automatically engaged, the rapid preliminary positioning and splicing of the supporting column and the supporting rod are realized, the installation efficiency and the butt joint accuracy are greatly improved, on the basis, the reinforcing assembly is connected in multiple points by using a tripod structure, a first bolt and a second bolt, and cooperates with the hinged tension bar of the supporting assembly, so that the overall performance, the stability and the bearing capacity of the frame are collectively enhanced, thereby the reliability and the safety of the elevator operation are obviously improved while the installation convenience is ensured.

Description

Technical Field

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

[0002] The passenger elevator car frame is the core steel structural frame in the elevator system used to support and fix the car. It is usually composed of components such as upper beams, lower beams, columns, and tie rods. Its main function is to bear the car's own weight, rated load capacity, and various dynamic loads generated during elevator operation, and to safely transfer these forces to the elevator's guiding and traction systems. Therefore, the structural strength, stability, and installation accuracy of the car frame are directly related to the elevator's operational safety, passenger comfort, and service life.

[0003] Traditional elevator car frames typically use a bolted connection method for fixing. During installation, components such as columns and beams need to be aligned in the air, requiring multiple operators to work together to pre-position them before bolting. This process is not only labor-intensive and time-consuming, but also highly susceptible to human error leading to misalignment of components, affecting the overall geometric accuracy of the frame and posing potential risks to subsequent installation and the long-term stable operation of the elevator. Therefore, we have made an improvement and proposed a new passenger elevator car frame. Summary of the Invention

[0004] The purpose of this utility model is to address the problem that traditional elevator car frames mostly use a bolted connection method for fixing. During installation, components such as columns and beams need to be aligned in the air, and multiple operators need to work together to pre-position them before bolts are used for fastening. This process is not only labor-intensive and time-consuming, but also prone to human error, which can lead to inaccurate component alignment, affecting the overall geometric accuracy of the frame and creating potential hazards for subsequent installation and long-term stable operation of the elevator.

[0005] In order to achieve the above-mentioned objectives, this utility model provides a passenger elevator car frame to improve the above-mentioned problems.

[0006] The application is as follows:

[0007] A passenger elevator car frame includes two supporting columns. Each of the two columns has a placement slot at both ends. The four placement slots are grouped in pairs. Each group of placement slots contains a support rod. The two support rods are arranged vertically. Each of the two support rods has two slots on one side. Each of the two columns has two snap-fit ​​components installed on one side. The four snap-fit ​​components correspond one-to-one with the four slots. The upper end of the lower support rod is fixedly connected to a mounting bracket, which is fixedly connected between the two columns. Reinforcing components are installed on both columns.

[0008] As a preferred technical solution of this application, the snap-fit ​​assembly includes a mounting block, which is fixedly connected to one side of the column. A movable cavity is provided inside the mounting block. Multiple springs are fixedly connected to the inner wall of the movable cavity on the side away from the column. A movable plate is slidably connected to the inner wall of the movable cavity. The movable plate is fixedly connected to the end of the multiple springs near the column.

[0009] As a preferred technical solution of this application, a wedge-shaped locking block is fixedly connected to one side of the movable plate. One end of the wedge-shaped locking block passes through the mounting block and the column, and the wedge-shaped locking block and the locking groove are engaged. A pull rod passes through one side of the mounting block, and one end of the pull rod is fixedly connected to the middle of the movable plate.

[0010] As a preferred technical solution of this application, the reinforcement component includes a tripod, which is set at the upper part of one side of the column. Two sets of first bolts pass through the tripod, one set of first bolts being threaded to one side of the column, and the other set of first bolts being threaded to the lower end of the support rod at the upper part.

[0011] As a preferred technical solution of this application, both ends of the two support rods are fixedly connected to connecting plates, and multiple second bolts are passed through each of the four connecting plates, with the multiple second bolts threadedly connected to both ends of the two columns respectively.

[0012] As a preferred technical solution of this application, the mounting frame is equipped with support components on both sides, and the two support components are respectively installed on the upper part of the two columns. The support components include two first hinge seats, which are symmetrically arranged on both sides of the columns.

[0013] As a preferred technical solution of this application, each of the two first hinge seats is hinged with a tie rod, and each of the upper sides of the column is fixedly connected with a second hinge seat, and the two tie rods are respectively hinged in the two second hinge seats.

[0014] As a preferred technical solution of this application, two symmetrically arranged traction wheels are installed in the upper support rod.

[0015] As a preferred technical solution of this application, the inner walls of the four placement slots are provided with a buffer pad layer, and the buffer pad layer is made of hard rubber.

[0016] As a preferred technical solution of this application, a toggle block is fixedly connected to the end of the pull rod away from the column, and the toggle block is provided with anti-slip texture on the outside.

[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 problem that existing technologies often use bolted connections for elevator car frames, requiring multiple operators to align components like columns and beams in mid-air before tightening, this approach is labor-intensive, time-consuming, and prone to human error leading to misalignment and affecting the overall geometric accuracy of the frame. This poses a risk to subsequent installation and long-term stable elevator operation. This application addresses this issue by using a snap-fit ​​assembly that automatically engages with the support rod slots, enabling rapid initial positioning and assembly of the columns and support rods. This significantly improves installation efficiency and alignment accuracy. Furthermore, the reinforcement assembly utilizes a triangular frame structure and first and second bolts for multi-point rigid connections, working in conjunction with the hinged tie rods of the support assembly to enhance the overall integrity, stability, and load-bearing capacity of the structure. This ensures ease of installation while significantly improving the reliability and safety of elevator operation. Attached Figure Description

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

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

[0022] Figure 3 This application provides a schematic diagram of the snap-fit ​​assembly structure for a passenger elevator car frame;

[0023] Figure 4 A schematic diagram of a reinforcement component structure for a passenger elevator car frame provided in this application;

[0024] Figure 5 This is a schematic diagram of a support component structure for a passenger elevator car frame provided in this application.

[0025] The image shows:

[0026] 1. Column; 2. Placement slot; 3. Support rod; 4. Slot;

[0027] 5. Snap-fit ​​assembly; 501. Mounting block; 502. Moving cavity; 503. Spring; 504. Moving plate; 505. Wedge-shaped locking block; 506. Pull rod;

[0028] 6. Mounting bracket;

[0029] 7. Reinforcing components; 701. Tripod; 702. First bolt; 703. Connecting plate; 704. Second bolt;

[0030] 8. Support assembly; 801. First hinge seat; 802. Tie bar; 803. Second hinge seat;

[0031] 9. Traction wheel; 10. Actuating block. Detailed Implementation

[0032] 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.

[0033] As described in the background section, traditional elevator car frames mostly use a bolted connection method for fixing. During installation, components such as columns and beams need to be aligned in the air, and multiple operators need to work together to pre-position them before bolts are used for fastening. This process is not only labor-intensive and time-consuming, but also prone to human factors causing inaccurate component alignment, affecting the overall geometric accuracy of the frame, and creating potential problems for subsequent installation and long-term stable operation of the elevator.

[0034] To solve this technical problem, this utility model provides a passenger elevator car frame, which is applied to the car frame in the elevator system.

[0035] For details, please refer to Figures 1-5 A passenger elevator car frame specifically includes:

[0036] It includes two support columns 1, each with a placement slot 2 at both ends. The four placement slots 2 are grouped in pairs, and each group of placement slots 2 contains a support rod 3. The two support rods 3 are arranged vertically. Each of the two support rods 3 has two slots 4 on one side. Each of the two columns 1 has two snap-fit ​​components 5 installed on one side. The four snap-fit ​​components 5 correspond one-to-one with the four slots 4. The upper end of the lower support rod 3 is fixedly connected to a mounting bracket 6, which is fixedly connected between the two columns 1. Each of the two columns 1 is equipped with a reinforcing component 7.

[0037] This utility model provides a passenger elevator car frame, which supports and initially positions the support rod 3 through the placement groove 2 on the column 1, and then automatically engages with the slot 4 on the support rod 3 using the snap-fit ​​component 5, realizing the rapid alignment and temporary fixation of the main frame, greatly improving the installation efficiency. On this basis, the mounting frame 6, together with the lower support rod 3 and the column 1, constitute a stable foundation platform, while the reinforcement component 7 further enhances the connection rigidity between the column 1 and the support rod 3, thereby jointly ensuring the stability and load-bearing capacity of the entire car frame structure.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] Example 1, please refer to Figures 1-5 A passenger elevator car frame includes two supporting columns 1. Each column 1 has a placement slot 2 at both ends. The four placement slots 2 are grouped in pairs. Each group of placement slots 2 contains a support rod 3. The two support rods 3 are arranged vertically. Each support rod 3 has two locking slots 4 on one side. Each column 1 has two locking components 5 installed on one side. The four locking components 5 correspond one-to-one with the four locking slots 4. A mounting bracket 6 is fixedly connected to the upper end of the lower support rod 3, and the mounting bracket 6 is fixedly connected between the two columns 1. Each column 1 is equipped with a reinforcing component 7. The support rod 3 is supported and initially positioned by the placement groove 2 on the column 1. Then, the snap-fit ​​component 5 automatically engages with the snap-fit ​​groove 4 on the support rod 3, realizing the rapid alignment and temporary fixation of the main frame, which greatly improves the installation efficiency. On this basis, the mounting frame 6, the lower support rod 3 and the column 1 together form a stable foundation platform, while the reinforcing component 7 further enhances the connection rigidity between the column 1 and the support rod 3, thus jointly ensuring the stability and load-bearing capacity of the entire car frame structure.

[0042] Furthermore, such as Figures 1-3As shown, the snap-fit ​​assembly 5 includes a mounting block 501, which is fixedly connected to one side of the column 1. A movable cavity 502 is formed inside the mounting block 501. Multiple springs 503 are fixedly connected to the inner wall of the movable cavity 502 on the side away from the column 1. A movable plate 504 is slidably connected to the inner wall of the movable cavity 502. The movable plate 504 is fixedly connected to one end of the multiple springs 503 near the column 1. A wedge-shaped locking block 505 is fixedly connected to one side of the movable plate 504. One end of the wedge-shaped locking block 505 passes through the mounting block 501 and the column 1, and the wedge-shaped locking block 505 and the locking groove 4 engage. A pull rod 506 passes through one side of the mounting block 501. One end of the pull rod 506 is fixedly connected to the middle of the movable plate 504. When the support rod 3 is placed... When the support rod 3 is inserted into the placement slot 2 of the column 1, the side wall of the support rod 3 presses against the inclined surface of the wedge-shaped locking block 505, forcing the wedge-shaped locking block 505 to drive the moving plate 504 to slide in the moving cavity 502 of the mounting block 501 and compress multiple springs 503. When the slot 4 of the support rod 3 moves to align with the wedge-shaped locking block 505, the compressed springs 503 release their elasticity, pushing the moving plate 504 and the wedge-shaped locking block 505 to reset, so that their tips are locked into the slot 4 to achieve automatic locking. By pulling the pull rod 506 outward, the elasticity of the springs 503 can be overcome, and the wedge-shaped locking block 505 can be disengaged from the slot 4 to achieve quick unlocking. This enables quick and accurate installation and disassembly between the support rod 3 and the column 1, greatly improving assembly efficiency and convenience.

[0043] Example 2 further optimizes the passenger elevator car frame provided in Example 1, specifically, as follows: Figure 4 As shown, the reinforcing component 7 includes a triangular frame 701, which is located on one side of the column 1 at the upper position. Two sets of first bolts 702 pass through the triangular frame 701. One set of first bolts 702 is threaded to one side of the column 1, and the other set of first bolts 702 is threaded to the lower end of the support rod 3 at the upper position. By placing the triangular frame 701 at the connection between the column 1 and the upper support rod 3, and using the two sets of first bolts 702 to rigidly connect the two sides of the triangular frame 701 to the column 1 and the support rod 3 respectively, the connection point is transformed from an unstable L-shape to a stable triangle by utilizing the stable structure of the triangle. This greatly enhances the rigidity of the node, significantly improves the stability and load-bearing capacity of the overall structure of the car frame, and effectively prevents deformation or loosening at the connection between the column 1 and the support rod 3 under stress.

[0044] Furthermore, such as Figure 4As shown, both ends of the two support rods 3 are fixedly connected to connecting plates 703. Multiple second bolts 704 are threaded through each of the four connecting plates 703. The multiple second bolts 704 are threaded to both ends of the two columns 1. By fixing the connecting plates 703 at both ends of the support rods 3 and using multiple second bolts 704 to pass through and fasten to both ends of the columns 1, a strong mechanical tension connection is formed at the joint between the support rods 3 and the columns 1. This forms a double protection with the internal snap-fit ​​component 5, greatly enhancing the rigidity and tensile strength of the connection between the support rods 3 and the columns 1, effectively preventing the connection point from loosening, and ensuring the final stability and long-term reliability of the entire car frame main structure.

[0045] Furthermore, such as Figure 5 As shown, support components 8 are installed on both sides of the mounting frame 6. The two support components 8 are respectively installed on the upper part of the two columns 1. The support components 8 include two first hinge seats 801, which are symmetrically arranged on both sides of the column 1. A tie rod 802 is hinged in each of the two first hinge seats 801. A second hinge seat 803 is fixedly connected to the upper part of both sides of the column 1. The two tie rods 802 are respectively hinged in the two second hinge seats 803. By connecting the first hinge seats 801 on the side of the mounting frame 6 and the second hinge seats 803 fixed on the upper part of the column 1, and forming a stable triangular support structure between the two by the tie rods 802, the upper part of the column 1 and the car mounting frame 6 are rigidly connected by utilizing the natural stability of the triangle. This greatly enhances the lateral stiffness and integrity of the frame, effectively resists shaking and deformation during operation, and improves the stability and safety of the structure.

[0046] Example 3 further optimizes the passenger elevator car frame provided in Example 1, specifically, as follows: Figure 1 and Figure 2 As shown, two symmetrically arranged traction sheaves 9 are installed inside each of the upper support rods 3. The two traction sheaves 9 are symmetrically installed inside the upper support rods 3 so that they directly bear and guide the traction steel wire rope. The support rods 3 provide a solid and stable installation foundation for the traction sheaves 9, while the symmetrical arrangement ensures that the steel wire rope is subjected to balanced force, effectively improving the transmission torque of the elevator system, reducing vibration and off-center wear during operation, thereby improving the smoothness, efficiency and life of the elevator components.

[0047] Furthermore, such as Figure 4As shown, the inner walls of the four placement slots 2 are all equipped with buffer pads made of hard rubber. By setting buffer pads made of hard rubber on the inner walls of the four placement slots 2, the high elastic modulus and damping characteristics of rubber are utilized to generate buffering and shock absorption when the support rod 3 is placed in the slot. This can absorb the impact energy generated during component installation and operation, reduce vibration and noise, and assist in the initial positioning of the support rod 3 by increasing friction. At the same time, it can prevent direct collision between the metal column 1 and the support rod 3, effectively preventing wear and deformation of the contact surface and improving the durability and installation stability of the structure.

[0048] Furthermore, such as Figure 2 and Figure 3 As shown, a toggle block 10 is fixedly connected to the end of the pull rod 506 away from the column 1. The toggle block 10 has anti-slip texture on its outside. The toggle block 10 fixed to the end of the pull rod 506 provides the operator with a clear point of force application. The anti-slip texture on its outside increases the friction to prevent slippage during manual operation, so that the operator can pull the pull rod 506 safely, effortlessly and accurately to control the unlocking of the locking component 5, which greatly improves the convenience, efficiency and safety of disassembly operation.

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

[0050] The installer places the two ends of the upper and lower support rods 3 into the corresponding placement slots 2 on the two columns 1 respectively. The hard rubber buffer pads in the placement slots 2 play a preliminary buffering and anti-slip role during this process. When the support rod 3 is placed into the placement slot 2 and pushed into place, the slot 4 on the side of the support rod 3 will contact the inclined surface of the wedge-shaped block 505 of the locking component 5. If the support rod 3 is pushed further, the inclined surface of the wedge-shaped block 505 will be pushed backward by the force, compressing the spring 503. When the slot 4 is aligned with the wedge-shaped block 505, the restoring force of the spring 503 will drive the moving plate 504 and the wedge-shaped block 505 to move forward, so that they are accurately locked into the slot 4. This completes the rapid preliminary positioning and temporary fixation of the entire car frame main structure without the need for additional tools or manpower.

[0051] After the snap-fit ​​assembly 5 is initially fixed, the installer places the tripod 701 at the right angle where the column 1 connects to the upper support rod 3. The first bolt 702 is then passed through two sets of holes on the tripod 701; one set is screwed into the threaded hole on the side of the column 1, and the other set is screwed into the threaded hole at the bottom of the upper support rod 3, thus rigidly fixing this crucial connection point. Simultaneously, multiple second bolts 704 are passed through holes on the connecting plates 703 at both ends of the support rod 3 and screwed into the threaded holes at the ends of the column 1. This step transforms the connection between the support rod 3 and the column 1 from an internal snap-fit ​​to an external bolted tightening, greatly enhancing the strength and reliability of the connection.

[0052] When disassembly is required, loosen and remove all first bolts 702 and second bolts 704. By pulling the pull rod 506 outward, the pull rod 506 drives the moving plate 504 to compress the spring 503, causing the wedge-shaped locking block 505 to exit from the locking groove 4. At this time, the support rod 3 can be safely removed from the placement groove 2 of the column 1, which greatly improves the installation efficiency, accuracy and the overall integrity and safety of the final structure.

[0053] 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.

[0054] 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 passenger elevator car frame, characterized in that, It includes two support columns (1), each of which has a placement slot (2) at both ends. The four placement slots (2) are grouped in pairs. Each group of placement slots (2) contains a support rod (3). The two support rods (3) are arranged vertically. Each of the two support rods (3) has two slots (4) on one side. Each of the two columns (1) has two snap-fit ​​components (5) installed on one side. The four snap-fit ​​components (5) correspond one-to-one with the four slots (4). The upper end of the lower support rod (3) is fixedly connected to a mounting bracket (6), and the mounting bracket (6) is fixedly connected between the two columns (1). Each of the two columns (1) is equipped with a reinforcing component (7).

2. The passenger elevator car frame according to claim 1, characterized in that, The snap-fit ​​assembly (5) includes a mounting block (501), which is fixedly connected to one side of the column (1). A movable cavity (502) is provided inside the mounting block (501). Multiple springs (503) are fixedly connected to the inner wall of the movable cavity (502) away from the column (1). A movable plate (504) is slidably connected to the inner wall of the movable cavity (502). The movable plate (504) is fixedly connected to one end of the multiple springs (503) near the column (1).

3. A passenger elevator car frame according to claim 2, characterized in that, A wedge-shaped locking block (505) is fixedly connected to one side of the movable plate (504). One end of the wedge-shaped locking block (505) passes through the mounting block (501) and the column (1), and the wedge-shaped locking block (505) and the slot (4) are engaged. A pull rod (506) passes through one side of the mounting block (501), and one end of the pull rod (506) is fixedly connected to the middle of the movable plate (504).

4. A passenger elevator car frame according to claim 1, characterized in that, The reinforcement component (7) includes a tripod (701), which is located on the upper side of the column (1). Two sets of first bolts (702) are threaded through the tripod (701). One set of first bolts (702) is threaded to the side of the column (1), and the other set of first bolts (702) is threaded to the lower end of the support rod (3) located at the upper position.

5. A passenger elevator car frame according to claim 1, characterized in that, Both ends of the two support rods (3) are fixedly connected to connecting plates (703), and multiple second bolts (704) are threaded through the four connecting plates (703). The multiple second bolts (704) are threaded to both ends of the two columns (1).

6. A passenger elevator car frame according to claim 1, characterized in that, The mounting bracket (6) is equipped with support components (8) on both sides. The two support components (8) are respectively installed on the upper part of the two columns (1). The support components (8) include two first hinge seats (801), which are symmetrically arranged on both sides of the column (1).

7. A passenger elevator car frame according to claim 6, characterized in that, Each of the two first hinge seats (801) is hinged with a tie rod (802), and each of the two upper sides of the column (1) is fixedly connected with a second hinge seat (803), and the two tie rods (802) are respectively hinged in the two second hinge seats (803).

8. A passenger elevator car frame according to claim 1, characterized in that, Two symmetrically arranged traction wheels (9) are installed in each of the upper support rods (3).

9. A passenger elevator car frame according to claim 1, characterized in that, The inner walls of the four placement slots (2) are provided with a buffer pad layer, and the buffer pad layer is made of hard rubber.

10. A passenger elevator car frame according to claim 3, characterized in that, The pull rod (506) is fixedly connected to a toggle block (10) at the end away from the column (1), and the toggle block (10) has anti-slip texture on the outside.

Images