Elevator device based on multi-rail elevator guide rail

Abstract

The invention provides an elevator device based on a multi-rail elevator guide rail. The elevator device comprises the multi-rail elevator guide rail, a plurality of multi-lifting safety tongs, a lifting mechanism and a lift car. The multi-rail elevator guide rail comprises a plurality of first guide rails and a plurality of second guide rails. Each of the first guide rail and the second guide rail comprises a first connecting part and a plurality of first guide convex rails; a plurality of multi-lifting safety tongs are correspondingly assembled with the first guide rail and the second guide rail; the two sides of the elevator car are in sliding fit with the first guide rail and the second guide rail correspondingly. The elevator device based on the multi-rail type elevator guide rail can meet the requirement of a heavy-load elevator, and the action synchronism of the safety tongs is improved; due to the integrated design of the multi-rail elevator guide rail, the safety tongs, the lifting mechanism and the guide shoe, the problems that the installation steps are tedious and the coplanarity of a plurality of guide rails is difficult to adjust due to the fact that the number of existing large-load elevator guide rails and safety tongs is large are solved, the use amount of matched materials is reduced, and installation and debugging convenience is improved.

Description

Technical Field

[0001] This invention relates to the field of elevator technology, and more specifically to an elevator device based on a multi-rail elevator guide rail. Background Technology

[0002] An elevator mainly consists of a car system, a traction system, a guiding system, and a control system. The car system carries passengers or goods. The traction system provides power to the car. The guiding system guides the car's movement. The control system controls the entire elevator system. The guiding system is a core unit ensuring smooth elevator operation. During elevator operation, the guiding system limits the freedom of movement of the car and counterweight, ensuring they can only move up and down along their respective tracks, preventing lateral swaying and vibration, thus guaranteeing smooth operation. Both car and counterweight guiding systems consist of guide rails, guide shoes, and guide rail supports. The guide rail supports, as support components for the guide rails, are fixed to the hoistway wall. Guide shoes are installed on both sides of the car frame and counterweight frame; the guide shoe lining mates with the guide rail working surface, ensuring that the car and counterweight move up and down along their respective guide rails under the drive of the traction machine.

[0003] Currently, elevator guide rails generally use a single, independently installed T-shaped guide rail. For elevators with heavy loads, multiple T-shaped guide rails need to be installed. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings and deficiencies of the prior art and provide an elevator device based on a multi-rail elevator guide rail.

[0005] An embodiment of the present invention provides an elevator device based on a multi-rail elevator guide rail, comprising: a multi-rail elevator guide rail, multiple multi-lifting safety clamps, a lifting mechanism, and an elevator car;

[0006] The multi-rail elevator guide rail includes a plurality of first guide rails and a plurality of second guide rails, the first guide rails and the second guide rails being respectively arranged on opposite sides of the elevator car; each of the first guide rails and the second guide rails includes a first connecting part and a plurality of first guide convex rails, the plurality of first guide convex rails being provided on the side of the first connecting part facing the elevator, the plurality of first guide convex rails being parallel to each other and spaced apart. Multiple multi-pulling safety clamps are assembled with the first guide rail and the second guide rail respectively. Each multi-pulling safety clamp includes a mounting base and multiple clamping components. One side of the mounting base is provided with multiple parallel clearance grooves. The first guide rail passes through the clearance grooves respectively, and the multiple clamping components are arranged at the clearance grooves respectively. The lifting mechanism is driven to the clamping assembly and is used to drive the clamping assembly to clamp the first guide rail, so as to brake the elevator car. The elevator car is slidably engaged with the first guide rail and the second guide rail on both sides, respectively.

[0007] In some alternative embodiments, the clamping assembly includes two guide rails, two wedges, and two lifting members. The two guide rails are respectively located on both sides of the clearance groove and gradually move closer to each other in an upward direction. The wedges are slidably engaged with the guide rails, and the lifting members are rotatably connected to the wedges. The lifting members are used for assembly with a lifting mechanism.

[0008] In some alternative embodiments, the lifting mechanism includes a gantry frame, a linkage mechanism, and two rotating members. The gantry frame is positioned above the elevator car, and the rotating members are rotatably mounted on the gantry frame and correspondingly positioned above the first guide rail and the second guide rail. The rotating members are provided with multiple lifting arms, which are drivenly connected to multiple clamping assemblies of multiple lifting safety clamps on the first guide rail or the second guide rail via connecting ropes. One of the rotating members is provided with a transmission arm for connection to a speed governor.

[0009] In some optional embodiments, the elevator device based on multi-rail elevator guide rails further includes a plurality of guide shoes, which slide in cooperation with the first guide rail and the second guide rail, and each guide shoe includes a body; The main body includes an installation part and multiple guide parts. The installation part is used for assembly with an elevator car or counterweight structure. The multiple guide parts are arranged side by side on one side of the installation part and are parallel to each other. When there are two guide portions, the two guide portions are first guide portions, and the side of the two first guide portions away from each other has a movable portion for moving and engaging with the guide rail. When the number of guide parts is greater than two, the two guide parts located at the head and tail ends are the first guide parts. The two first guide parts have a movable part formed on the side away from each other for movable cooperation with the guide rail. All the guide parts located in the middle are the second guide parts. The number of the second guide parts is even. A movable groove is formed between adjacent second guide parts for movable cooperation with the guide rail.

[0010] In some alternative embodiments, a first boot liner is provided at the movable part, and a second boot liner is provided on the side of the second guide part facing the movable groove.

[0011] In some alternative embodiments, when the number of guide portions is two, the two first guide portions are connected by a first reinforcing portion; When the number of guide portions is greater than two, the first guide portion and the adjacent second guide portion are connected by a second reinforcing portion; When the number of guide parts is greater than four, the first guide part is connected to the adjacent second guide part through a second reinforcing part, and the side of the second guide part away from the movable groove is connected to the side of the adjacent second guide part away from the movable groove through a third reinforcing part.

[0012] In some alternative embodiments, the multi-rail elevator guide rail includes multiple guide rail brackets and multiple connecting brackets, the multiple guide rail brackets being connected to the first guide rail, the multiple connecting brackets being connected to the second guide rail, and the guide rail brackets and the connecting brackets being used for assembly with the elevator shaft.

[0013] In some optional embodiments, the plurality of guide rail brackets are connected to the first guide rail and the plurality of connecting brackets are connected to the second guide rail by a connecting structure. The connecting structure includes a plurality of guide rail clamps, which are connected to the guide rail brackets or the connecting brackets by screws. The guide rail clamps are used to press the first connecting part onto the guide rail brackets or the connecting brackets.

[0014] In some alternative implementations, the plurality of guide rail supports and the elevator shaft enclose a counterweight passage; The counterweight channel is equipped with counterweight guide rails that are connected to the multiple guide rail supports.

[0015] In some alternative embodiments, the counterweight guide rail includes a second connecting portion and a plurality of second guide rails, the plurality of second guide rails being disposed on the side of the second connecting portion facing the elevator, the plurality of second guide rails being parallel to each other and spaced apart.

[0016] Compared to existing technologies, the elevator device based on multi-rail elevator guide rails of this invention can adapt to the needs of heavy-duty elevators. Moreover, the multiple clamping components of multiple safety clamps can be lifted together, improving the synchronization of the safety clamps' actions and enhancing the stability of the overall braking. Furthermore, the integrated design of the multi-rail elevator guide rails, safety clamps, lifting mechanism, and guide shoes breaks the traditional model of independent single-rail installation in elevators. This solves the problems of cumbersome installation steps and difficulty in adjusting the coplanarity of multiple guide rails caused by the large number of guide rails and safety clamps in existing heavy-duty elevators. It achieves the technical effects of reducing the amount of guide rails, gantry frames, and supporting materials, improving the convenience of installation and debugging, and ensuring the operational stability of the multi-rail structure.

[0017] To provide a clearer understanding of the present invention, the specific embodiments of the present invention will be described below in conjunction with the accompanying drawings. Attached Figure Description

[0018] Figure 1This is a schematic diagram of a portion of the structure of an elevator device based on a multi-rail elevator guide rail according to an embodiment of the present invention. Figure 2 This is a schematic diagram of the structure of a multi-rail elevator guide rail according to an embodiment of the present invention; Figure 3 This is a partial structural schematic diagram of the first guide rail according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of a multi-lifting safety clamp according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the multi-lifting safety clamp and the first guide rail according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the multi-lifting safety clamp according to an embodiment of the present invention when it is lifted; Figure 7 This is a schematic diagram of the lifting mechanism according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the guide shoe structure according to the first embodiment of the present invention; Figure 9 This is a schematic diagram of the guide shoe structure according to the second embodiment of the present invention; Figure 10 This is a schematic diagram of the top structure of the guide shoe according to the second embodiment of the present invention; Figure 11 This is a schematic diagram of the guide shoe structure according to the third embodiment of the present invention; Figure 12 This is a schematic diagram of one side of the guide shoe according to the second embodiment of the present invention; Figure 13 for Figure 1 The enlarged view at point A is shown below; Figure 14 This is a schematic diagram of the structure of the first guide rail and guide rail bracket according to an embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures: 10. Multi-rail elevator guide rail; 11. First guide rail; 111. First connecting part; 112. First guide rail; 12. Second guide rail; 13. Guide rail bracket; 131. Guide rail clamp; 14. Connecting frame; 15. Counterweight channel; 16. Counterweight guide rail; 161. Second connecting part; 162. Second guide rail; 20. Multi-lifting safety clamp; 210. Mounting base; 211. Clearance groove; 212. Clamping assembly; 2121. Guide rail; 21211. Guide groove; 21212. Guide roller; 2122. Wedge; 21222. Embossed texture; 2123. Lifting component; 2124. Compression spring module; 2125. Distance adjustment module Group; 21251, Adjusting screw; 30, Lifting mechanism; 31, Gantry frame; 32, Linkage mechanism; 33, Rotating component; 331, Lifting arm; 332, Transmission arm; 40, Guide shoe; 410, Main body; 411, Mounting part; 4111, Base plate; 4112, Mounting plate; 4113, Reinforcing plate; 412, Guide part; 413, First guide part; 4131, Movable part; 4132, First shoe liner; 4133, First reinforcing part; 414, Second guide part; 4141, Movable groove; 4142, Second shoe liner; 4143, Second reinforcing part; 4144, Third reinforcing part; 50, Elevator car; 60, Counterweight structure. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 are within the scope of protection of the present invention. In the description of the present invention, unless otherwise stated, "a plurality of" means two or more, and "a number" means one or more. Furthermore, unless otherwise stated, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features.

[0021] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing" 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 or an electrical connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] In the description of this invention, references to terms such as "one embodiment," "some alternative implementations," or "some optional embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0024] Please see Figures 1 to 7 One embodiment of the present invention provides an elevator device based on a multi-rail elevator guide rail, comprising: a multi-rail elevator guide rail 10, multiple multi-lifting safety clamps 20, a lifting mechanism 30, and a car 50.

[0025] The multi-rail elevator guide rail 10 includes a plurality of first guide rails 11 and a plurality of second guide rails 12, the first guide rails 11 and the second guide rails 12 being respectively arranged on opposite sides of the elevator car; each of the first guide rails 11 and the second guide rails 12 includes a first connecting part 111 and a plurality of first guide rails 112, the plurality of first guide rails 112 being located on the side of the first connecting part 111 facing the elevator, and the plurality of first guide rails 112 being parallel to each other and spaced apart.

[0026] The number of first guide rails 11 and second guide rails 12 can be set based on the elevator's load capacity. For example, when the elevator load capacity is 10 tons, one first guide rail 11 and one second guide rail 12 are each set, and two first guide rails 112 can be set. When the elevator load capacity is 20 tons, one first guide rail 11 and one second guide rail 12 are each set, and three first guide rails 112 can be set. When the elevator load capacity is 40 tons, two first guide rails 11 and two second guide rails 12 are each set, and three or four first guide rails 112 can be set.

[0027] The multi-rail elevator guide rail 10 can be used to guide the movement of the elevator car or counterweight structure 60. The first guide rail 11 and the second guide rail 12 are integrated with multiple guide rails through the first connecting part 111. This integrated design breaks the traditional mode of independent setting of single rail in elevators and solves the problems of complicated installation steps and difficulty in adjusting the coplanarity of multiple guide rails caused by the large number of guide rails in existing heavy-duty elevators. It achieves the technical effects of reducing the amount of guide rails and supporting materials, improving the convenience of installation and debugging, and ensuring the operational stability of the multi-rail structure.

[0028] Multiple multi-lifting safety clamps 20 are assembled with the first guide rail 11 and the second guide rail 12 respectively. Each multi-lifting safety clamp 20 includes a mounting base 210 and multiple clamping components 212. The mounting base 210 has multiple parallel clearance grooves 211 on one side. The first guide rail 112 passes through the clearance grooves 211 respectively. The multiple clamping components 212 are arranged at the clearance grooves 211 respectively. The lifting mechanism 30 is driven to connect with the clamping components 212 and is used to drive the clamping components 212 to clamp the first guide rail 112 to achieve braking of the elevator car.

[0029] The specific structure of the clamping assembly 212 can be designed according to actual needs. For example, in this embodiment, the clamping assembly 212 includes two guide rails 2121, two wedges 2122, and two lifting members 2123. The two guide rails 2121 are respectively provided on both sides of the clearance groove 211 and gradually approach each other in the upward direction. The wedges 2122 are slidably engaged with the guide rails 2121, and the lifting members 2123 are rotatably connected to the wedges 2122. The lifting members 2123 are used for assembly with the lifting mechanism 30. Of course, the clamping assembly 212 can also adopt other suitable structures, and is not limited to this example.

[0030] The elevator car 50 has sliding contact with the first guide rail 11 and the second guide rail 12 on both sides.

[0031] The working principle of an elevator device based on a multi-rail elevator guide rail according to an embodiment of the present invention is described below: When the elevator car needs to be braked, the lifting mechanism 30 pulls the lifting member 2123 to move along the first guide rail 112, so that the two lifting members 2123 of the same clamping assembly 212 come close to each other and clamp the first guide rail 112. During the sliding friction process between the first guide rail 112 and the wedge block 2122, the kinetic energy of the elevator car is consumed, thereby achieving braking.

[0032] The multi-pulling safety clamp 20 of this application is specifically designed for multi-rail elevator guide rail 10. The position between the clearance groove 211 and the clamping component 212 of the entire safety clamp is adjusted, and it can directly adapt to the guide rail 2121 of the multi-rail elevator guide rail 10. This solves the problem of cumbersome adjustment steps between multiple single rails and multiple single safety clamps, and effectively improves the efficiency of elevator on-site installation.

[0033] The integrated design of the multi-rail elevator guide rail 10 allows for the integration of the multi-lifting safety clamp 20, thus simplifying its structure. The lifting mechanism 30 can also be integrated, eliminating the need for multiple separate lifting mechanisms 30 to lift the safety clamps at different positions. This reduces the need for the installation of the first guide rail 11, the second guide rail 12, the lifting mechanism 30, and the multi-lifting safety clamp 20, thereby reducing costs and simplifying the installation process.

[0034] In some optional embodiments, the clamping assembly 212 further includes at least one compression spring module 2124, which is connected to both the mounting base 210 and the guide rail 2121. The compression spring module 2124 is positioned on the side of the guide rail 2121 away from the clearance groove 211. When the wedge 2122 presses against the side of the first guide rail 112, the wedge 2122 receives a reaction force from the first guide rail 112, causing the guide rail 2121 to press against the compression spring module 2124. This causes the compression spring module 2124 to undergo elastic deformation, thereby asymptotically applying clamping force to maintain stable deceleration of the elevator car. The specific structure of the compression spring module 2124 can be designed according to actual needs and will not be described in detail here.

[0035] In some optional embodiments, the clamping assembly 212 further includes a distance adjustment module 2125, which is mounted on the mounting base 210 and is drively connected to the compression spring module 2124. The distance adjustment module 2125 drives the compression spring module 2124 to move, thereby causing the guide rail 2121 connected to the compression spring module 2124 to move towards the opposite guide rail 2121. This adjusts the degree to which the compression spring module 2124 presses against the guide rail 2121, and consequently adjusts the reaction force of the wedge block 2122 on the first guide rail 112, causing the guide rail 2122 to move. When the spring module 2124 is pressed against the guide rail 2121, the elastic force applied by the spring module 2124 to the guide rail 2121 can be adapted to different situations. For example, the greater the weight of the elevator car, the more the distance adjustment module 2125 can move the spring module 2124 toward the guide rail 2121, thereby increasing the reaction force of the wedge block 2122 on the first guide rail 112 and causing the guide rail 2121 to press against the spring module 2124, the elastic force applied by the spring module 2124 to the guide rail 2121, and thus increasing the friction between the wedge block 2122 and the first guide rail 112.

[0036] The specific structure of the distance adjustment module 2125 can be designed according to actual needs. For example, in some optional embodiments, the distance adjustment module 2125 includes an adjustment screw 21251, which is threadedly engaged with the mounting base 210 and connected to the compression spring module 2124.

[0037] In some alternative embodiments, the wedge 2122 has a textured surface 21222 on the side facing the clearance groove 211, thereby increasing the friction between the first guide rail 112 and the wedge 2122.

[0038] In some alternative embodiments, a guide groove 21211 is formed on one side of the guide rail 2121 facing the avoidance groove 211. The guide groove 21211 is in movable cooperation with the wedge 2122. The guide groove 21211 improves the movement stability of the wedge 2122 and avoids left and right deviation.

[0039] In some alternative embodiments, a plurality of guide rollers 21212 are rotatably disposed on one side of the guide rail 2121 facing the clearance groove 211. The plurality of guide rollers 21212 are arranged sequentially along the extension direction of the guide rail 2121. The wedge block 2122 abuts against the outer peripheral surface of the guide roller 21212, and the guide roller 21212 improves the smoothness of the movement of the wedge block 2122 relative to the guide rail 2121. In this embodiment, the guide roller 21212 is rotatably disposed within the guide groove 21211.

[0040] In some optional embodiments, the lifting mechanism 30 includes a gantry frame 31, a linkage mechanism 32, and two rotating members 33. The gantry frame 31 is positioned above the elevator car. The rotating members 33 are rotatably mounted on the gantry frame 31 and correspondingly positioned above the first guide rail 11 and the second guide rail 12. Multiple lifting arms 331 are mounted on the rotating members 33. These lifting arms 331 are driven by connecting ropes to multiple clamping assemblies 212 of the multi-lifting safety clamps 20 on the first guide rail 11 or the second guide rail 12. One of the rotating members 33 is equipped with a transmission arm 332 for connection to a speed governor. The speed governor drives the transmission arm 332 to swing, thereby causing one of the rotating members 33 to rotate. The linkage mechanism 32 is designed so that the two rotating members 33 can rotate synchronously. When the two rotating members 33 rotate, they drive the clamping assemblies 212 via the lifting arms 331. In this embodiment, a single lifting arm 331 is connected to two lifting members 2123 of the same clamping assembly 212. The rotating member 33 can drive the lifting member 2123 to rise by driving the lifting arm 331 to rotate. When the lifting member 2123 rises, it will drive the two wedges 2122 of the same clamping assembly 212 to rise, thereby clamping the first guide rail 112.

[0041] The specific structure of the speed governor can be designed according to actual needs. For example, the speed governor includes a speed detector and a telescopic cylinder. The telescopic cylinder is connected to the speed detector via a signal connection, and the output shaft of the telescopic cylinder is rotated in conjunction with the transmission arm 332. The speed detector is used to detect the speed of the elevator car. When the elevator car overspeeds, the telescopic cylinder drives the two transmission components to rotate through the transmission arm 332. Of course, the principle and structure of the speed governor are well-known to those skilled in the art and will not be elaborated here.

[0042] Please see Figures 8 to 10 In some optional embodiments, the elevator device based on multi-rail elevator guide rails further includes a plurality of guide shoes 40, which are slidably engaged with the first guide rail 11 and the second guide rail 12, and the guide shoe 40 includes a main body 410. The main body 410 includes a mounting part 411 and a plurality of guide parts 412. The mounting part 411 is used for assembly with the elevator car or counterweight structure 60. The plurality of guide parts 412 are arranged side by side on one side of the mounting part 411 and are parallel to each other. When there are two guide portions 412, the two guide portions 412 are first guide portions 413, and the two first guide portions 413 have a movable portion 4131 for moving and cooperating with the guide rail on the side away from each other. When the number of guide parts 412 is greater than two, the two guide parts 412 located at the head and tail ends are the first guide parts 413. The two first guide parts 413 have a movable part 4131 for moving and cooperating with the guide rail on the side away from each other. All the guide parts 412 located in the middle are the second guide parts 414. The number of second guide parts 414 is even. A movable groove 4141 for moving and cooperating with the guide rail is formed between adjacent second guide parts 414.

[0043] When there are two first guide rails 112 in the multi-rail elevator guide rail 10, there are two guide parts 412. The two first guide parts 413 extend between the two first guide rails 112. The first guide part 413 cooperates with the side of the first guide rail 112 through the movable part 4131, so that the first guide part 413 can move along the first guide rail 112.

[0044] When the number of first guide rails 112 of the multi-rail elevator guide rail 10 is greater than two, the number of guide parts 412 increases accordingly. In this embodiment, the number of first guide rails 112 of the multi-rail elevator guide rail 10 is three as an example. At this time, the number of guide parts 412 is four. The first guide part 413 and the second guide part 414 extend into the two adjacent first guide rails 112. The two first guide parts 413 are movablely engaged with the sides of the first guide rails 112 located at the head and tail ends through the movable part 4131, while the first guide rail 112 located in the middle is movablely engaged with the movable groove 4141, so that the first guide part 413 can move along the first guide rail 112, and the movable groove 4141 moves along the corresponding first guide rail 112.

[0045] The guide shoe 40 of this application is specifically designed for multi-rail elevator guide rails 10. Multiple movable parts 4131 and movable grooves 4141 are integrated on a single guide shoe 40. The parallelism between the movable parts 4131 and the movable grooves 4141 is adjusted after leaving the factory, which solves the problem of cumbersome adjustment steps between guide shoes 40 with multiple single movable grooves 4141 and effectively improves the efficiency of elevator on-site installation.

[0046] In some alternative embodiments, a first boot liner 4132 is provided at the movable part 4131. The first boot liner 4132 serves to bear loads, guide, dampen shocks, and reduce friction, and may be made of materials such as polyvinyl chloride.

[0047] In some alternative embodiments, a second boot liner 4142 is provided on the side of the second guide portion 414 facing the movable groove 4141. The second boot liner 4142 serves to bear loads, guide, dampen vibrations, and reduce wear, and may be made of materials such as polyvinyl chloride.

[0048] Please see Figure 11 In some optional embodiments, when there are two guide portions 412, the two first guide portions 413 are connected by a first reinforcing portion 4133. The first reinforcing portion 4133 improves the structural strength between the first guide portions 413 and ensures the positional stability between the two first guide portions 413.

[0049] When the number of guide portions 412 is greater than two, the first guide portion 413 and the adjacent second guide portion 414 are connected by a second reinforcing portion 4143. The second reinforcing portion 4143 improves the structural strength between the first guide portion 413 and the adjacent second guide portion 414, ensuring the positional stability between the first guide portion 413 and the second guide portion 414.

[0050] When the number of guide parts 412 is greater than four, the first guide part 413 is connected to the adjacent second guide part 414 through the second reinforcing part 4143, and the side of the second guide part 414 away from the movable groove 4141 is connected to the side of the adjacent second guide part 414 away from the movable groove 4141 through the third reinforcing part 4144. The second reinforcing part 4143 improves the structural strength between the first guide part 413 and the adjacent second guide part 414, and the third reinforcing part 4144 improves the structural strength between the adjacent second guide parts 414, thereby ensuring the positional stability between the two guide parts 412.

[0051] Please see Figure 12 The specific structure of the mounting part 411 can be designed according to actual needs. For example, in some optional embodiments, the mounting part 411 includes a base plate 4111 and a mounting plate 4112. The mounting plate 4112 is disposed on one side of the base plate 4111, and the guide part 412 is disposed on the side of the base plate 4111 away from the mounting plate 4112. In some optional embodiments, the base plate 4111 and the mounting plate 4112 are perpendicular to each other, thereby facilitating the assembly of the mounting plate 4112 with other structures. In this embodiment, the mounting plate 4112 is provided with a plurality of holes for screws to pass through, facilitating the assembly of the mounting plate 4112 with other structures by means of screws.

[0052] In some optional embodiments, the mounting portion 411 further includes a reinforcing plate 4113, which is connected to the mounting plate 4112 and the substrate 4111 respectively. The reinforcing plate 4113 improves the structural strength of the mounting plate 4112 and the substrate 4111, preventing wobbling or misalignment between them. In some optional embodiments, the mounting portion 411 includes multiple reinforcing plates 4113, which are arranged sequentially along the arrangement direction of the guide portions 412, further improving the overall structural strength of the mounting portion 411 and avoiding insufficient strength when there are many guide portions 412 and the mounting plate 4112 and substrate 4111 are long.

[0053] In some alternative embodiments, the mounting part 411 and the guide part 412 are integrally formed, which helps to simplify the production steps and makes the overall guide shoe 40 structurally stronger.

[0054] In some alternative embodiments, the multi-rail elevator guide rail 10 includes a plurality of guide rail brackets 13 and a plurality of connecting brackets 14. The plurality of guide rail brackets 13 are connected to a first guide rail 11, and the plurality of connecting brackets 14 are connected to a second guide rail 12. The guide rail brackets 13 and connecting brackets 14 are used for assembly with an elevator shaft.

[0055] The weight of the guide rail bracket 13 is related to the elevator's load capacity. The greater the elevator's load capacity, the greater the weight requirement for the guide rail bracket 13, and the corresponding increase in its size is also necessary. The guide rail bracket 13 can be designed as a U-shape, with one open end connected to the inner wall of the elevator shaft in various ways, such as threaded connection, snap-fit, or at least one of these. This allows the guide rail bracket 13 and the elevator shaft to enclose and form a counterweight channel 15.

[0056] The guide rail bracket 13 can be formed in various ways, such as integral molding or forming a frame structure by connecting rod-shaped materials.

[0057] The guide rail bracket 13 can also be used to support the first guide rail 11 and provide an installation base for the installation of the first guide rail 11.

[0058] The connecting bracket 14 supports the second guide rail 12 and provides an installation base for the second guide rail 12. The connecting bracket 14 can be connected to the inner wall of the elevator shaft in various ways, such as at least one of threaded connection, snap-fit, etc.

[0059] In some alternative embodiments, multiple guide rail brackets 13 are connected to the first guide rail 11 and multiple connecting brackets 14 are connected to the second guide rail 12 through a connecting structure. The structural connection includes multiple guide rail clamps 131. The guide rail clamps 131 are connected to the guide rail brackets 13 or connecting brackets 14 by screws. The guide rail clamps 131 are used to press the first connecting part 111 onto the guide rail brackets 13 or connecting brackets 14.

[0060] The surface of the guide rail clamp 131 that contacts the first connecting part 111 can be designed as an inclined surface. By using the guide rail clamp 131 to press the first connecting part 111 onto the guide rail bracket 13 or the connecting frame 14, the first connecting part 111 can be pressed onto the guide rail bracket 13 or the connecting frame 14, which can limit the degree of freedom of the first guide rail 11 or the second guide rail 12 to a certain extent, thereby improving the stability and positional accuracy of the first guide rail 11 or the second guide rail 12.

[0061] An elastic structure in a compressed state can be provided between the guide rail clamp 131 and the first connecting part 111 to form an elastic connection. The elastic structure can include various types, such as at least one of elastic pads, spring sheets, etc. The elastic structure can provide preload, enhance the clamping effect of the guide rail clamp 131, and prevent the first connecting part 111 from loosening. It can also provide a buffering and vibration reduction effect.

[0062] Please see Figure 13 and Figure 14 In some optional embodiments, multiple guide rail supports 13 and elevator shaft enclose a counterweight channel 15; counterweight guide rails 16 connected to multiple guide rail supports 13 are provided in the counterweight channel 15, and the counterweight structure 60 slides with the counterweight guide rails 16.

[0063] The counterweight guide rail 16 is used for sliding connection with the guide rail bracket 13, and serves to guide and limit the movement of the guide rail bracket 13. The counterweight guide rail 16 can be distributed on opposite sides of the guide rail bracket 13. The structure of the counterweight guide rail 16 can be similar to that of the first guide rail 11, meaning that the counterweight guide rail 16 and the first guide rail 11 can have the same shape, but different dimensions.

[0064] In this embodiment, the counterweight guide rail 16 includes a second connecting portion 161 and a plurality of second guide rails 162. The plurality of second guide rails 162 are located on the side of the second connecting portion 161 facing the elevator, and are parallel to each other and spaced apart. As the load of the elevator increases, the load-bearing capacity of the counterweight guide rail 16 also needs to be increased accordingly. However, due to the limited space inside the elevator shaft and the limited space occupied by the guide rail bracket 13, designing the counterweight guide rail 16 as a multi-rail structure similar to the first guide rail can increase the load-bearing capacity of the counterweight guide rail 16, ensure the guiding accuracy of the guide rail bracket 13, and also reduce the space occupied by the counterweight guide rail 16, facilitating the installation layout of the guide rail bracket 13, counterweight guide rail 16, and other structures.

[0065] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An elevator device based on multi-rail elevator guide rails, characterized in that, include: Multi-rail elevator guide rails, multiple multi-lifting safety clamps, lifting mechanism and elevator car; The multi-rail elevator guide rail includes a plurality of first guide rails and a plurality of second guide rails, the first guide rails and the second guide rails being respectively arranged on opposite sides of the elevator car; each of the first guide rails and the second guide rails includes a first connecting part and a plurality of first guide convex rails, the plurality of first guide convex rails being provided on the side of the first connecting part facing the elevator, the plurality of first guide convex rails being parallel to each other and spaced apart. Multiple multi-pulling safety clamps are assembled with the first guide rail and the second guide rail respectively. Each multi-pulling safety clamp includes a mounting base and multiple clamping components. One side of the mounting base is provided with multiple parallel clearance grooves. The first guide rail passes through the clearance grooves respectively, and the multiple clamping components are arranged at the clearance grooves respectively. The lifting mechanism is driven to the clamping assembly and is used to drive the clamping assembly to clamp the first guide rail, so as to brake the elevator car. The elevator car is slidably engaged with the first guide rail and the second guide rail on both sides, respectively.

2. The elevator device based on a multi-rail elevator guide rail according to claim 1, characterized in that: The clamping assembly includes two guide rails, two wedges, and two lifting members. The two guide rails are respectively located on both sides of the clearance groove and gradually move closer to each other in the upward direction. The wedges are slidably engaged with the guide rails, and the lifting members are rotatably connected to the wedges. The lifting members are used for assembly with the lifting mechanism.

3. The elevator device based on a multi-rail elevator guide rail according to claim 1, characterized in that: The lifting mechanism includes a gantry frame, a linkage mechanism, and two rotating members. The gantry frame is positioned above the elevator car. The rotating members are rotatably mounted on the gantry frame and are positioned above the first guide rail and the second guide rail, respectively. The rotating members are equipped with multiple lifting arms, which are driven connected to multiple clamping assemblies of multiple lifting safety clamps on the first guide rail or the second guide rail via connecting ropes. One of the rotating members is equipped with a transmission arm for connecting to a speed governor.

4. An elevator device based on a multi-rail elevator guide rail according to claim 1, characterized in that, It also includes multiple guide shoes, which slide in cooperation with the first guide rail and the second guide rail, and each guide shoe includes a main body; The main body includes an installation part and multiple guide parts. The installation part is used for assembly with an elevator car or counterweight structure. The multiple guide parts are arranged side by side on one side of the installation part and are parallel to each other. When there are two guide portions, the two guide portions are first guide portions, and the side of the two first guide portions away from each other has a movable portion for moving and engaging with the guide rail. When the number of guide parts is greater than two, the two guide parts located at the head and tail ends are the first guide parts. The two first guide parts have a movable part formed on the side away from each other for movable cooperation with the guide rail. All the guide parts located in the middle are the second guide parts. The number of the second guide parts is even. A movable groove is formed between adjacent second guide parts for movable cooperation with the guide rail.

5. An elevator device based on a multi-rail elevator guide rail according to claim 4, characterized in that: A first boot liner is provided at the movable part, and a second boot liner is provided on the side of the second guide part facing the movable groove.

6. An elevator device based on a multi-rail elevator guide rail according to claim 4, characterized in that: When there are two guide portions, the two first guide portions are connected by a first reinforcing portion; When the number of guide portions is greater than two, the first guide portion and the adjacent second guide portion are connected by a second reinforcing portion; When the number of guide parts is greater than four, the first guide part is connected to the adjacent second guide part through a second reinforcing part, and the side of the second guide part away from the movable groove is connected to the side of the adjacent second guide part away from the movable groove through a third reinforcing part.

7. An elevator device based on a multi-rail elevator guide rail according to any one of claims 1 to 6, characterized in that: The multi-rail elevator guide rail includes multiple guide rail brackets and multiple connecting brackets. The multiple guide rail brackets are connected to the first guide rail, and the multiple connecting brackets are connected to the second guide rail. The guide rail brackets and the connecting brackets are used for assembly with the elevator shaft.

8. An elevator device based on a multi-rail elevator guide rail according to claim 7, characterized in that: The plurality of guide rail brackets are connected to the first guide rail and the plurality of connecting brackets are connected to the second guide rail through a connecting structure. The connecting structure includes a plurality of guide rail clamps. The guide rail clamps are connected to the guide rail brackets or the connecting brackets by screws. The guide rail clamps are used to press the first connecting part onto the guide rail brackets or the connecting brackets.

9. An elevator device based on a multi-rail elevator guide rail according to claim 7, characterized in that: The multiple guide rail supports and the elevator shaft enclose a counterweight passage; The counterweight channel is equipped with counterweight guide rails that are connected to the multiple guide rail supports.

10. An elevator device based on a multi-rail elevator guide rail according to claim 9, characterized in that: The counterweight guide rail includes a second connecting part and a plurality of second guide rails. The plurality of second guide rails are located on the side of the second connecting part facing the elevator, and the plurality of second guide rails are parallel to each other and spaced apart.

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