Connecting device for safe fastening of elevator car and connecting method of connecting device

Abstract

The invention relates to the technical field of connecting structures, in particular to a connecting device for safe fastening of an elevator car and a connecting method thereof.The connecting device comprises a car body, a mounting base, a connecting block, a fixing assembly, a rotating assembly, a locking assembly and a matching assembly; the mounting base is mounted on the car body, the connecting block is mounted on the mounting base, the fixing assembly is mounted on the connecting block, the rotating assembly is mounted on the fixing assembly, the locking assembly is mounted on the rotating assembly, and the matching assembly is mounted on the side face of the fixing assembly and the side face of the rotating assembly. The rotating sleeve rotates in the rotating ring groove, so that the fastening strips on the fixing assembly and the rotating assembly are overlapped and fixed by the fastening blocks, and the rotating clamping blocks are clamped into the rotating cavities to achieve fixing.

Description

Technical Field

[0001] The present invention relates to the technical field of connection structures, and particularly relates to a connection device for safely fastening an elevator car and a connection method thereof. Background Art

[0002] As a key part for carrying passengers and goods during the operation of an elevator, the safety performance of an elevator car is directly related to the stability of the overall elevator system and the life and property safety of users. In the prior art, the car is usually mechanically connected to a guide rail bracket or a car frame through a series of bolts, nuts and steel structure members. Although the traditional fastening connection device is relatively mature in structure, there are still many potential safety hazards during actual use. Especially under working conditions such as long-term operation, frequent starting and braking, the connecting parts are prone to looseness, fatigue or even falling off, resulting in a gap between the car and the bracket, thus affecting the running smoothness and vertical guiding accuracy. In addition, changes in ambient temperature and vibration shock will also increase the risk of loosening of the fasteners, which is particularly obvious in high-speed elevators in high-rise buildings. Therefore, the existing fastening connection methods still have deficiencies in maintaining long-term stability and anti-vibration performance, and there is an urgent need to design a safe fastening device with high strength, high durability, anti-fatigue and self-locking properties to improve the overall fastening effect and safety guarantee ability between the elevator car and the bracket.

[0003] With the acceleration of the urbanization process, the number of high-rise buildings is increasing day by day, and elevators have become an important vertical means of transportation for people's daily travel. In this context, the structural strength and fastening stability of elevator cars are particularly important. Traditional car connection devices mostly rely on manually installed bolts and steel structure welding processes. These connection methods may meet the usage requirements in the initial stage, but over time, due to factors such as uneven stress on the connecting parts, material aging, poor lubrication and accumulation of assembly tolerances, the fastening force will gradually decrease, leading to problems such as connection loosening and structural deformation. Especially under extreme working conditions such as earthquakes, impact loads or sudden braking, traditional fastening structures often cannot provide sufficient shear resistance and tensile pull-out force, presenting potential safety hazards. In addition, it is difficult to achieve effective fastening inspection and maintenance in some positions with complex structures or limited space, which further increases the risk of failure of the car connection device. Therefore, there is an urgent need for a connection device with a reasonable structure, easy to install and excellent fastening performance, which can always maintain a stable connection under high-frequency operation and complex environments, ensuring high reliability and safety of the car throughout its service life.

[0004] In view of the above situation, in order to overcome the above technical problems, the present invention designs a connection device for safely fastening an elevator car and a connection method thereof, solving the above technical problems. Summary of the Invention

[0005] The technical objective to be achieved by the present invention is to design a connection device and its connection method for securely fastening an elevator car. Through reasonable structural design, easy installation, and excellent fastening performance, it can maintain a stable connection under high-frequency operation and complex environments, ensuring high reliability and safety of the car throughout its service life.

[0006] To achieve the above technical objective, the present invention provides the following technical solution: A connection device for securely fastening an elevator car includes a car body, a mounting base, a connection block, a fixing component, a rotating component, a locking component, and a fastening component. Above the car body is provided a mounting base, which serves as an intermediate load-bearing structure for achieving a stable connection between the car body and the connection structure. The upper surface of the mounting base is fixedly installed with a connection block, which is tightly fitted with the lower base by welding or threading to ensure the stability of the overall structure. Above the connection block is provided a fixing component, which serves as a load-bearing unit and is equipped with a plurality of fastening strips for providing sufficient bearing and shear strength when the structures are combined. Above the fixing component is provided a rotating component, which is provided with a rotating sleeve inside and can freely rotate in a set rotating ring groove to drive the fixing component to achieve precise alignment. Above the rotating component is provided a locking component, which is used to automatically lock through an internal locking mechanism after the connection is completed to prevent loosening caused by vibration or long-term use. In addition, a fastening component is also installed on the side of the fixing component and the rotating component. Through the engagement structure between the rotating clamping block provided inside it and the internal rotating cavity, precise positioning can be achieved during rotation and additional fastening force can be provided, enhancing the overall stability and anti-fatigue performance of the connection device. Through a multi-level structural combination, the safety fastening effect of the elevator car is effectively improved.

[0007] The upper surface of the mounting base is evenly provided with a circle of mounting holes for fastening, which are used to connect with external structures or fixing members through bolts to achieve a stable connection between the mounting base and the car body. The connection block is composed of two connection rings with different diameters that are sleeved with each other, forming an inner and outer layer matching structure, which helps to improve the strength and anti-deformation ability of the connection block. A cross-shaped fixing through-hole is provided at the center position of each connection ring, which is convenient for passing through positioning pins or threaded fasteners to achieve multi-point locking and precise alignment, enhancing the stability and safety performance of the overall connection device.

[0008] The fixed assembly includes a three-part structure of a fixed block, a rotating cavity and a rotating groove, wherein the fixed block is the main load-bearing component, made of high-strength alloy material, installed on the upper surface of the connecting block, and firmly connected to the connecting block by threading or welding, thereby providing structural support for the entire fastening device. The rotating cavity is opened inside the fixed block, and its cross-sectional shape is designed to be a fan-shaped structure, which helps to achieve stable interlocking with the subsequently installed rotating assembly and achieve smooth rotation within a specific angle range, so as to facilitate the flexible operation of the device during position adjustment or fastening. The rotating groove is located on the upper surface of the fixed block, which is a guide structure that cooperates with the rotating assembly, and is used to guide the rotating component to move along a preset trajectory to ensure that it does not deviate or get stuck during rotation. Through the above-mentioned structural setting, the fixed assembly improves the reliability and safety of the device operation while achieving multi-angle fastening.

[0009] The middle part of the fixed block is provided with an annular rotating ring groove, which is used to accommodate rotating components such as rotating sleeves to realize the rotating operation of the device during the tightening process. A positioning column is provided at the center of the rotating ring groove to accurately limit and center the rotating component to prevent deviation during rotation. The side walls of the ring groove are also evenly provided with limiting ring grooves for matching the limiting structure or the block to be embedded, thereby further improving the stability and safety of the connecting device during operation.

[0010] The rotating assembly includes multiple functional structures such as a rotating block, a rotating sleeve, a limiting rolling ball, a rotating ring and a rotating clamping block. The rotating block is installed above the fixed assembly and fits closely with it to receive and transmit the rotating force. A rotating sleeve is arranged in the middle of the rotating block. The sleeve is a hollow structure and can rotate freely in the rotating cavity to achieve angle adjustment or locking action. A plurality of limiting rolling balls are evenly installed on the outer side of the rotating sleeve. These rolling balls can roll in the limiting ring groove when rotating to reduce friction and provide precise limiting function to prevent over-position or offset during rotation. A rotating ring is mounted on the outer side of the sleeve. The rotating ring cooperates with the sleeve during rotation to enhance the overall rotation stability. The rotating clamping block located on the rotating ring is used to achieve precise engagement with the rotating cavity structure in the fixed assembly. After the rotation reaches a predetermined position, it can be quickly inserted into the cavity to complete the locking action, thereby ensuring the safety and reliability of the connecting device under high-intensity working conditions.

[0011] The locking assembly includes three structural parts: a locking sleeve, a fixing through-hole, and a locking block. The locking sleeve, serving as the housing structure of the entire locking mechanism, is installed above the fixing assembly and is tightly connected to it by means of threads or a card slot to ensure that it does not loosen during operation. A fixing through-hole is provided in the upper part of the locking sleeve. This through-hole is used to insert a positioning pin, a fastening bolt, or other fasteners, enabling the locking structure to achieve quick connection and disassembly with external accessories and improving the assembly efficiency. The locking block is installed inside the locking sleeve. Its material is usually high-strength metal or alloy material, with excellent wear resistance and fatigue resistance. During use, under the action of an external force, the locking block can extend into the mating position of the rotating assembly to achieve quick clamping and locking, thus effectively preventing the entire device from accidentally rotating or loosening and ensuring the safe operation of the elevator.

[0012] The locking block includes three parts: a transition cavity, an entry cavity, and a dispersion groove. Its structural design is compact and its functions are clear. Among them, the transition cavity is located in the middle of the locking block, acting as a bridge connecting the upper and lower structures, facilitating the transmission of force and the guidance of internal components. The entry cavity located below the transition cavity is opened at the bottom of the locking block and is used to guide external inserted components or fasteners to smoothly enter the inside of the locking structure, ensuring smooth operation and accurate positioning during assembly or operation. A smooth transition area is formed between the entry cavity and the transition cavity, which helps to reduce structural jamming. The dispersion grooves are opened in the upper part of the transition cavity and are evenly distributed in a circumferential array. Their function is to disperse stress and reduce the phenomenon of local stress concentration, thereby improving the working stability and durability of the locking system.

[0013] The fastening assembly includes a fastening block, a mating sliding groove, a fastening strip, and a fastening sliding groove. Its overall structural design aims to achieve efficient and reliable fastening of the elevator car connection device during operation. The fastening block is the main load-bearing component and is installed on the outer surfaces of the fixing assembly and the rotating assembly. It achieves effective connection and support through structural cooperation with these two parts. A mating sliding groove is provided on the inner side of the fastening block. This mating sliding groove is a convex structure and can be precisely matched with the corresponding groove or guiding groove to improve the stability and positioning accuracy of the component connection. The fastening strip is installed on the side of the fastening block and provides auxiliary reinforcement when the structure is stressed, making the connection part have stronger tensile and shear resistance. A fastening sliding groove is also opened on the side of the fastening strip. This sliding groove is used to guide the locking structure or the limiting component into the specified position to achieve quick assembly and efficient disassembly, and at the same time ensure the smoothness of the entire fastening process, significantly improving the safety and durability of the device during long-term operation.

[0014] The overall structure of the fastening block is designed to be C-shaped, and its opening direction is convenient for plugging and matching with the fastening strip. The C-shaped structure has good clamping stability and a certain degree of elasticity, which helps to achieve rapid positioning and firm fixation during assembly. The gap spacing inside the fastening block is precisely designed, and its size corresponds to the height value of the fastening strip, ensuring that the fastening strip can be accurately embedded therein without shaking or loosening, thereby improving the fastening effect and safety performance of the connection device.

[0015] A method for connecting a connecting device for safely fastening an elevator car, the method is used to cooperate with the above-mentioned connecting device for safely fastening an elevator car; the steps of the method are as follows: S1: The staff places the mounting base on the mounting column set on the car body, inserts the screws into the mounting holes to fix it, and then inserts the cross strip into the cross fixing hole to achieve dual fixation of the car body and the fixing component; S2: The staff puts the steel cable into the transition trough through the dispersion trough, separates it through the dispersion trough and the fixed through hole, and knots it outside to fix it; S3: The staff aligns the rotating sleeve with the positioning column, and then rotates the entire rotating assembly, so that the rotating block rotates in the rotating cavity, and the upper surface of the rotating block is also stuck in the rotating groove; S4: After the rotation is completed, the fastening blocks are clamped and fixed by the fastening strips, thereby completing the fixed connection between the rotating component and the fixed component.

[0016] The beneficial effects of the present invention are as follows: (1) The present invention realizes efficient and stable fixation of the elevator car safety fastening connection device through the collaborative design of multiple components. The mounting base is tightly matched with the car body, and double fixation is achieved through screws and cross strips, which greatly improves the overall firmness of the connection structure and effectively avoids the loosening problem caused by vibration or long-term use in traditional fastening methods. The rotating component is equipped with a rotating sleeve, a positioning column and a rotating block, which can flexibly adjust the fastening angle, and achieve precise positioning through a limiting structure to ensure that the connection does not shift or loosen under the action of multiple forces. This structural design not only improves the uniform distribution of the fastening force and reduces local stress concentration, but also enhances the fatigue resistance and service life of the connection device, providing a solid guarantee for the safe and stable operation of the elevator car under high-frequency operation and complex working conditions.

[0017] (2) By setting up the dispersion tank and arranging the steel cables reasonably, the present invention realizes the uniform dispersion of the load, reducing the potential safety hazards caused by excessive single-point stress. The design of the locking assembly ensures that it can be quickly locked after installation and adjustment, preventing the fastening from loosening due to external impact or vibration, and greatly improving the reliability and maintenance convenience of the device. The C-shaped structure of the fastening block precisely cooperates with the fastening strip, making the assembly process simpler and more efficient, reducing the installation error and the risk of failure. The overall structure is compact and reasonable, facilitating on-site installation and later maintenance, significantly enhancing the practical value and the potential for popularization and application of the elevator car safety fastening connection device, and providing important technical support for the development of safety technologies in the elevator industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Now, the above and other aspects of the present invention will be described by way of example only with reference to the drawings, where: Figure 1 is a schematic installation view of the car body and other components of the present invention; Figure 2 is the overall structure diagram of the present invention; Figure 3 is a schematic structural view of the fixing component of the present invention; Figure 4 is a schematic internal structure view of the fixing component of the present invention; Figure 5 is a schematic structural view of the rotating component of the present invention; Figure 6 is the present invention Figure 5 partial enlarged view in; Figure 7 is a schematic internal structure view of the rotating component of the present invention; Figure 8 is a sectional view of the locking component of the present invention.

[0020] In the figure: 1, car body; 2, mounting base; 21, mounting hole; 3, connecting block; 31, connecting ring; 32, cross fixing hole; 4, fixing component; 41, fixing block; 411, rotating ring groove; 412, positioning post; 413, limiting ring groove; 42, rotating cavity; 43, rotating groove; 5, rotating component; 51, rotating block; 52, rotating sleeve; 53, limiting rolling ball; 54, rotating ring; 55, rotating clamping block; 6, locking component; 61, locking sleeve; 62, fixing through hole; 63, locking block; 631, transition cavity; 632, entering cavity; 633, dispersing groove; 7, fastening component; 71, fastening block; 72, mating chute; 73, fastening strip; 74, fastening chute. Detailed implementation manners

[0021] To better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings of the specification and specific implementation manners.

[0022] As Figures 1-8 shown, a connecting device for safely fastening an elevator car includes a car body 1, a mounting base 2, a connecting block 3, a fixing component 4, a rotating component 5, a locking component 6, and a fastening component 7. Above the car body 1, there is a mounting base 2, which serves as an intermediate bearing structure for achieving a stable connection between the car body 1 and the connecting structure. On the upper surface of the mounting base 2, a connecting block 3 is fixedly installed. The connecting block 3 is tightly fitted with the lower base by welding or threading to ensure the stability of the overall structure. Above the connecting block 3, there is a fixing component 4. The fixing component 4 serves as a load-bearing unit, and a plurality of fastening strips 73 are installed thereon to provide sufficient bearing and shear strength when the structures are combined. Above the fixing component 4, there is a rotating component 5. Inside the rotating component 5, there is a rotating sleeve 52, which can freely rotate in the set rotating ring groove 411 to drive the fixing component 4 to achieve precise alignment. Above the rotating component 5, there is a locking component 6, which is used to automatically lock through an internal locking mechanism after the connection is completed to prevent loosening caused by vibration or long-term use. In addition, a fastening component 7 is also installed on the side surfaces of the fixing component 4 and the rotating component 5. Through the fitting structure between the internal rotating clamping block 55 and the rotating cavity 42, precise positioning can be achieved during rotation and additional fastening force can be provided, enhancing the overall stability and anti-fatigue performance of the connecting device. Through the combination of multi-level structures, the safety fastening effect of the elevator car is effectively improved.

[0023] As Figure 3As shown in the figure, a circle of mounting holes 21 for fastening are evenly opened on the upper surface of the mounting base 2. These mounting holes 21 are used to connect with an external structure or a fixing member through bolts, so as to realize the stable connection between the mounting base 2 and the car body 1. The connecting block 3 is composed of two connecting rings 31 with different diameters and sleeved with each other, forming an inner and outer layer matching structure, which helps to improve the strength and anti-deformation ability of the connecting block 3. A cross-shaped fixing through hole 62 is provided at the center position of each connecting ring 31. This through hole facilitates the threading of a positioning pin or a threaded fastener to achieve multi-point locking and precise alignment, enhancing the stability and safety performance of the overall connecting device.

[0024] As Figures 3-4 As shown in the figure, the fixing component 4 includes three structural parts: a fixing block 41, a rotating cavity 42, and a rotating groove 43. Among them, the fixing block 41 is the main load-bearing member, made of high-strength alloy material, installed on the upper surface of the connecting block 3, and firmly connected to the connecting block 3 by threading or welding, so as to provide structural support for the entire fastening device. The rotating cavity 42 is opened inside the fixing block 41, and its cross-sectional shape is designed as a fan-shaped ring structure. This structure helps to achieve stable fitting with the subsequent installed rotating component 5 and enables smooth rotation within a specific angle range, thus facilitating flexible operation during the adjustment of the device position or the fastening process. The rotating groove 43 is located on the upper surface of the fixing block 41 and is a guiding structure that cooperates with the rotating component 5 to guide the rotating part to move along a preset trajectory, ensuring that it does not deviate or jam during rotation. Through the above structural settings, the fixing component 4 realizes multi-angle fastening while improving the reliability and safety of the device operation.

[0025] As Figure 4 As shown in the figure, an annular rotating ring groove 411 is opened in the middle part of the fixing block 41. This rotating ring groove 411 is used to accommodate rotating components such as the rotating sleeve 52 to realize the rotation operation during the fastening process of the device. A positioning column 412 is provided at the center position of the rotating ring groove 411 for accurately limiting and centering the rotating component 5 to prevent deviation during rotation. The side wall of the ring groove is also evenly provided with limiting ring grooves 413 for cooperating with limiting structures or clamping blocks to be embedded, thereby further enhancing the stability and safety performance of the connecting device during operation.

[0026] As Figure 5As shown, the rotating assembly 5 includes multiple functional structures such as a rotating block 51, a rotating sleeve 52, a limiting ball 53, a rotating ring 54, and a rotating clamping block 55. The rotating block 51 is installed above the fixed assembly 4 and is in close contact with it, playing the role of receiving and transmitting the rotational force. A rotating sleeve 52 is provided in the middle of the rotating block 51. This sleeve is a hollow structure and can rotate freely in the rotating cavity 42 to achieve angle adjustment or locking actions. A plurality of limiting balls 53 are evenly installed on the outer side surface of the rotating sleeve 52. These balls can roll in the limiting ring groove 413 during rotation to reduce friction and provide precise limiting functions, preventing over-positioning or deviation during the rotation process. A rotating ring 54 is sleeved outside the sleeve. The rotating ring 54 cooperates with the sleeve during rotation to enhance the overall rotational stability. The rotating clamping block 55 located on the rotating ring 54 is used to achieve precise clamping with the rotating cavity 42 structure in the fixed assembly 4. After the rotation reaches the predetermined position, it can quickly snap into the cavity to complete the locking action, thereby ensuring the safety and reliability of the connecting device under high-intensity working conditions.

[0027] As Figure 7 shown, the locking assembly 6 includes three structural parts: a locking sleeve 61, a fixed through hole 62, and a locking block 63. The locking sleeve 61 serves as the outer shell structure of the entire locking mechanism. It is installed above the fixed assembly 4 and is tightly connected to it by means of threads or card slots to ensure that it does not loosen during operation. A fixed through hole 62 is opened in the upper part of the locking sleeve 61. This through hole is used to insert positioning pins, fastening bolts, or other fasteners, enabling the locking structure to be quickly connected and disassembled with external accessories and improving the assembly efficiency. The locking block 63 is installed inside the locking sleeve 61. Its material is usually high-strength metal or alloy material, having excellent wear resistance and fatigue resistance. During use, the locking block 63 can extend into the mating position of the rotating assembly 5 under the action of external force to achieve quick clamping and locking, thereby effectively preventing the entire device from accidentally rotating or loosening and ensuring the safe operation of the elevator.

[0028] As Figure 8As shown, the locking block 63 includes three parts: a transition cavity 631, an entry cavity 632, and a dispersion groove 633. Its structural design is compact and its functions are well-defined. Among them, the transition cavity 631 is arranged in the middle of the locking block 63, serving as a bridge to connect the upper and lower structures, facilitating the transfer of force and the guidance of internal components. The entry cavity 632 located below the transition cavity 631 is opened at the bottom of the locking block 63, used to guide external insertion components or fasteners to smoothly enter the interior of the locking structure, ensuring smooth operation and accurate positioning during assembly or operation. A smooth transition area is formed between the entry cavity 632 and the transition cavity 631, which helps to reduce structural jamming. The dispersion groove 633 is opened in the upper part of the transition cavity 631 and is evenly distributed in a circumferential array. Its function is to disperse stress and reduce the phenomenon of local stress concentration, thereby enhancing the working stability and durability of the locking system.

[0029] As Figures 5-6 shown, the fastening assembly 7 includes a fastening block 71, a mating chute 72, a fastening strip 73, and a fastening chute 74. Its overall structural design aims to achieve efficient and reliable fastening of the elevator car connection device during operation. The fastening block 71 is the main load-bearing component, installed on the outer surfaces of the fixed assembly 4 and the rotating assembly 5, and realizes effective connection and support through structural cooperation with these two parts. A mating chute 72 is provided on the inner side of the fastening block 71. This mating chute 72 is a convex structure that can be precisely mated with corresponding grooves or guide grooves to improve the stability and positioning accuracy of component connection. The fastening strip 73 is installed on the side of the fastening block 71 and provides auxiliary reinforcement when the structure is stressed, making the connection part have stronger tensile and shear resistance. A fastening chute 74 is also opened on the side of the fastening strip 73. This chute is used to guide the locking structure or the limiting component into the designated position, realizing rapid assembly and efficient disassembly, and ensuring a smooth and stable fastening process, significantly enhancing the safety and durability of the device during long-term operation.

[0030] The overall structural design of the fastening block 71 is C-shaped, and its opening direction facilitates plug-in cooperation with the fastening strip 73. This C-shaped structure has good clamping stability and certain elasticity, which helps to achieve rapid positioning and firm fixation during the assembly process. The gap spacing inside the fastening block 71 is precisely designed, and its size corresponds to the height value of the fastening strip 73, ensuring that the fastening strip 73 can be accurately inserted into it without shaking or loosening, thereby enhancing the fastening effect and safety performance of the connection device.

[0031] A connection method for a connection device for safely fastening an elevator car, which is used in cooperation with the above-mentioned connection device for safely fastening an elevator car; the steps of the method are as follows: S1: The staff places the mounting base 2 on the mounting posts provided on the car body 1 and fixes it by inserting screws into the mounting holes 21, and then inserts the cross-shaped strip into the cross-shaped fixing holes 32 to achieve double fixation of the car body 1 and the fixing component 4; S2: The staff places the steel cable into the transition groove through the dispersion groove 633, separates it through the dispersion groove 633 and the fixing through-hole 62, and ties a knot outside for fixation; S3: The staff aligns the rotating sleeve 52 with the positioning post 412, and then rotates the entire rotating component 5, so that the rotating catch 55 rotates within the rotating cavity 42, and the upper surface of the rotating catch 55 is also caught by the rotating groove 43; S4: After rotation, the fastening strips 73 between the fastening blocks 71 are caught and fixed, thereby completing the fixed connection between the rotating component 5 and the fixing component 4.

[0032] During the working process of the present invention, the staff first accurately places the mounting base 2 on the mounting posts preset on the elevator car body 1 to ensure stable fitting between the mounting base 2 and the car body 1. Subsequently, the staff inserts screws into the mounting holes 21 on the mounting base 2 in sequence and tightens them to complete the fixation of the mounting base 2. Next, the cross-shaped strip is inserted into the cross-shaped fixing holes 32 on the mounting base 2 and the connecting block 3. This step realizes double fixation of the car body 1 and the fixing component 4, ensuring the stability and safety of the structural connection.

[0033] Subsequently, the staff guides the steel cable along the dispersion groove 633 into the interior of the transition groove, uses the circumferential array structure of the dispersion groove 633 to evenly distribute the steel cable, and separates the steel cable through the dispersion groove 633 and the fixing through-hole 62, thereby realizing the reasonable layout and fastening of the steel cable. After the steel cable passes through the dispersion groove 633, it is tied and fixed outside to ensure that the steel cable will not loosen, improving the safety and reliability of the entire connection system.

[0034] Next, the staff accurately aligns the rotating sleeve 52 with the positioning post 412 on the fixing block 41 to ensure that the rotating sleeve 52 can be smoothly installed in place. Subsequently, by rotating the entire rotating component 5, the rotating catch 55 rotates within the rotating cavity 42, and at the same time, the top of the rotating catch 55 is firmly caught by the rotating groove 43 to prevent loosening.

[0035] After rotation, the fastening strips 73 between the fastening blocks 71 are accurately caught, realizing the tight fixed connection between the rotating component 5 and the fixing component 4, ensuring that the safety fastening device of the elevator car can remain stable and reliable during operation.

[0036] For those of ordinary skill in the art, various modifications to the present disclosure will be apparent, and the general principles defined herein can be applied to other variations without departing from the scope of the present disclosure. Thus, the present disclosure is not limited to the examples and designs described herein, but should be accorded the widest scope consistent with the principles and novel features disclosed herein. Although one or more exemplary embodiments of the present disclosure have been described with reference to the accompanying drawings, those of ordinary skill in the art will understand that various changes in form and detail may be made therein without departing from the spirit and scope of the present disclosure as defined by the appended claims.

Claims

1. A connecting device for securely fastening an elevator car, characterized in that, It includes a car body (1), a mounting base (2), a connecting block (3), a fixing component (4), a rotating component (5), a locking component (6) and a fastening component (7); The mounting base (2) is installed on the upper surface of the car body (1), the connecting block (3) is installed on the upper surface of the mounting base (2), the fixing component (4) is installed on the upper surface of the connecting block (3), the rotating component (5) is installed on the upper surface of the fixing component (4), the locking component (6) is installed on the upper surface of the rotating component (5), and the fastening component (7) is installed on the sides of the fixing component (4) and the rotating component (5); The rotating sleeve (52) rotates in the rotating ring groove (411), so that the fastening strips (73) on the fixing component (4) and the rotating component (5) overlap and are fixed by the fastening block (71), and the rotating block (55) is inserted into the rotating cavity (42) to achieve fixation.

2. The connecting device for elevator car safety fastening according to claim 1, characterized in that: A circle of mounting holes (21) is provided on the upper surface of the mounting base (2), the connecting block (3) is composed of two connecting rings (31) with different diameters, and a cross fixing hole (32) is provided in the middle of the connecting ring (31).

3. A connecting device for securely fastening an elevator car, according to claim 1, wherein: The fixing component (4) includes a fixing block (41), a rotating cavity (42) and a rotating groove (43); The fixing block (41) is installed on the upper surface of the connecting block (3), the rotating cavity (42) is provided inside the fixing block (41), the cross-sectional shape of the rotating cavity (42) is set as a fan-shaped ring, and the rotating groove (43) is provided on the upper surface of the fixing block (41).

4. The connecting device for safely fastening an elevator car according to claim 3, wherein: A rotating ring groove (411) is provided in the middle of the fixing block (41), a part in the middle of the rotating ring groove (411) is set as a positioning column (412), and a limiting ring groove (413) is provided on the side of the rotating ring groove (411).

5. The connecting device for safely fastening an elevator car according to claim 1, characterized in that: The rotating component (5) includes a rotating block (51), a rotating sleeve (52), a limiting rolling ball (53), a rotating ring (54) and a rotating block (55); The rotating block (51) is installed on the upper surface of the fixing component (4), the rotating sleeve (52) is arranged in the middle of the rotating block (51), the limiting rolling ball (53) is installed on the outer side of the rotating sleeve (52), the rotating ring (54) is arranged on the outer side of the rotating sleeve (52), and the rotating block (55) is installed on the upper surface of the rotating ring (54).

6. A connecting device for safely fastening an elevator car according to claim 1, characterized in that: The locking component (6) includes a locking sleeve (61), a fixing through hole (62) and a locking block (63); The locking sleeve (61) is installed on the upper surface of the fixing component (4), the fixing through hole (62) is provided in the upper part of the locking sleeve (61), and the locking block (63) is installed inside the locking sleeve (61).

7. A connecting device for elevator car safety fastening according to claim 6, characterized in that: The locking block (63) includes a transition cavity (631), an access cavity (632) and a dispersion groove (633); The transition cavity (631) is provided in the middle of the locking block (63), the access cavity (632) is provided below the transition cavity (631), the dispersion groove (633) is provided above the transition cavity (631), and the dispersion grooves (633) are arranged in a circumferential array.

8. A connecting device for elevator car safety fastening according to claim 1, characterized in that: The fastening assembly (7) includes a fastening block (71), a mating chute (72), a fastening strip (73), and a fastening chute (74); The fastening block (71) is installed on the outer surfaces of the fixing assembly (4) and the rotating assembly (5). The mating chute (72) is provided on the inner side surface of the fastening block (71). The fastening strip (73) is installed on the side surface of the fastening block (71). The fastening chute (74) is formed on the side surface of the fastening strip (73).

9. The connecting device for safely fastening an elevator car according to claim 8, wherein: The fastening block (71) is set in a C shape, and the internal gap spacing value of the fastening block (71) is set as the height value of the fastening strip (73).

10. A connection method for a connection device for securely fastening an elevator car, which method is used in cooperation with a connection device for securely fastening an elevator car according to any one of claims 1-9; characterized in that: The steps of the method are as follows: S1: The staff places the mounting base (2) on the mounting posts provided on the car body (1), fixes it by inserting screws into the mounting holes (21), and then inserts the cross long strip into the cross fixing holes (32) to achieve double fixation of the car body (1) and the fixing assembly (4); S2: The staff places the steel cable into the transition chute through the dispersion chute (633), separates it through the dispersion chute (633) and the fixing through holes (62), and ties a knot on the outside for fixation; S3: The staff aligns the rotating sleeve (52) with the positioning post (412), and then rotates the entire rotating assembly (5) so that the rotating catch (55) rotates within the rotating cavity (42), and the upper surface of the rotating catch (55) is also caught by the rotating groove (43); S4: After rotation, the fastening blocks (71) are caught and fixed by the fastening strip (73), thereby completing the fixed connection between the rotating assembly (5) and the fixing assembly (4).

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