Elevator with high structural strength

Abstract

The utility model discloses an elevator with high structural strength, which comprises an elevator car, a car body and a plurality of elevator car frames connected to the car body, the elevator car frames are constructed to be vertical frames, the elevator car frames surround the car body, and the number of the elevator car frames is plural; each guide rail set comprises two guide rails which vertically extend and are arranged on the two opposite sides of the lift car respectively, the guide rail sets correspond to the lift car frames one to one, and the two opposite sides of each lift car frame are slidably connected with the two guide rails of the guide rail set corresponding to the lift car frame respectively; and the dragging assembly is used for driving the lift car to slide along the guide rails. The lift car frames are bearing structures of the lift car, the dead weight and the load of the lift car are transmitted by the lift car frames, the number of the lift car frames is plural, the lift car frames and the guide rail sets are arranged in a one-to-one correspondence mode, and each lift car frame slides along the corresponding guide rail set, so that the lift car structure is high in strength, and the lift car is stressed in a balanced mode.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, and more specifically, to an elevator with high structural strength. Background Art

[0002] At present, the car of the machine-roomless freight elevator with a traction ratio of 4:1 is usually equipped with only one car frame, and the bottom of the front and rear ends of the car are both equipped with car bottom beams, which are connected to the anti-ropes. This structure of the car is only suitable for small-tonnage machine-roomless freight elevator structures. When the load is increased, the strength of the car with only a single car frame is insufficient.

[0003] At the same time, since the car frame is set in the middle of the car, when it is necessary to add a car frame, car frames are added at the front and rear ends of the car at the same time, resulting in three car frames being set on the car, which makes the structure bloated. On the other hand, since the middle car frame has been matched with a set of guide rails, when adding another set of guide rails, either the guide rails are matched with the car frame at the front end of the car, or the guide rails are matched with the car frame at the rear end of the car, or the two guide rails of the set of guide rails are matched with the two car frames at the front and rear ends of the car respectively, and the force between the car and the guide rails is weakened. Utility Model Content

[0004] The present invention provides an elevator with high structural strength, which comprises:

[0005] A car, comprising a box body and a plurality of car frames connected to the box body, wherein the car frames are constructed as upright frames, surround the box body, and the number of the car frames is plural;

[0006] A plurality of guide rail groups, including two guide rails extending vertically and respectively arranged on opposite sides of the car, the guide rail groups corresponding to the car frames one by one, and opposite sides of each car frame are respectively slidably connected to the two guide rails of the guide rail group corresponding to the car frame; and

[0007] The traction assembly is used to drive the car to slide along the guide rail.

[0008] In an illustrative embodiment, the traction assembly includes a traction rope and a plurality of car movable pulley blocks disposed below the box body;

[0009] The car movable pulley blocks are arranged in one-to-one correspondence with the car frames, the car frames are connected to the corresponding car movable pulley blocks, and the pulling ropes pass around a plurality of car movable pulley blocks to carry the car.

[0010] In an illustrative embodiment, the car further comprises a plurality of cross beams disposed below the box body, the cross beams being disposed in one-to-one correspondence with the car frame;

[0011] The crossbeam is arranged on one side of the car frame corresponding to it, and each of the car movable pulley blocks is arranged between the car frame corresponding to it and the crossbeam corresponding to the car frame, and is connected to the crossbeam.

[0012] In an illustrative embodiment, the number of the car frame, the cross beam and the car movable pulley block are all two, and the two cross beams are respectively arranged on the opposite sides of the two car frames.

[0013] In an illustrative embodiment, the car further includes a plurality of connecting beams, and each two adjacent car frames are connected by the plurality of connecting beams.

[0014] In an illustrative embodiment, the car frame includes an upper beam located above the box body;

[0015] The plurality of connecting beams include a first connecting beam and a second connecting beam both perpendicular to the upper beam;

[0016] The first connecting beam is arranged on a side of the upper beam facing away from the box body, and its two ends are respectively connected to the upper beams of two adjacent car frames;

[0017] The second connecting beam is arranged on a side of the upper beam facing the box body, and two ends of the second connecting beam are respectively connected to the upper beams of two adjacent car frames.

[0018] In an illustrative embodiment, the car frame includes a side beam located on one side of the box body;

[0019] The plurality of connecting beams include a third connecting beam perpendicular to the side beam;

[0020] Both ends of the third connecting beam are respectively connected to the side beams of two adjacent car frames.

[0021] In an illustrative embodiment, the connecting beam is a channel steel.

[0022] In an exemplary embodiment, the traction ratio of the elevator is set to 4:1.

[0023] In an illustrative embodiment, the elevator further comprises:

[0024] a main beam, arranged above the guide rail on one side of the car; and

[0025] A follower beam, arranged above the guide rail on the other side of the car;

[0026] The pulling assembly also includes:

[0027] a counterweight pulley block, arranged on the main beam;

[0028] A counterweight, arranged below the counterweight fixed pulley block;

[0029] The counterweight movable pulley block is connected to the counterweight

[0030] A traction machine is arranged on the main beam and is provided with a traction wheel;

[0031] A fixing device, arranged on the main beam;

[0032] A fixed pulley block for the car is arranged on the secondary beam; and

[0033] Among them, one end of the traction rope is connected to the fixing device, and the other end is connected to the fixing device by passing through the heavy movable pulley group, the heavy fixed pulley group, the traction wheel, a group of the car movable pulley group, the car fixed pulley group, and another group of the car movable pulley group.

[0034] In the technical solution of the present application, the car frame is the load-bearing structure of the car, and the car's own weight and load are both transmitted by the car frame. Since the number of car frames is plural, the car frames and guide rail groups are arranged one by one, and each car frame slides along the guide rail group corresponding to it. This type of car structure has high strength and the car is subjected to balanced force.

[0035] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained through the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The accompanying drawings are used to provide a further understanding of the technical solution of the utility model and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the utility model and do not constitute a limitation on the technical solution of the utility model.

[0037] Figure 1 This is a schematic diagram of a front view of an elevator in an embodiment of the utility model;

[0038] Figure 2 It is a three-dimensional schematic diagram of an elevator in an embodiment of the utility model;

[0039] Figure 3 This is a schematic diagram of a main view of a car in an embodiment of the utility model;

[0040] Figure 4 This is a three-dimensional schematic diagram of a car in an embodiment of the utility model;

[0041] Figure 5 It is a three-dimensional schematic diagram of a car in another perspective in an embodiment of the utility model;

[0042] Figure 6It is a schematic diagram of rope winding for a freight elevator in an embodiment of the utility model.

[0043] Reference numerals:

[0044] 10. Elevator; 100. Car; 1. Box; 11. Top plate; 12. Bottom plate; 13. Side plate; 14. Column; 2. Car frame; 21. Upper beam; 22. Lower beam; 23. Side beam; 3. Connecting beam; 31. First connecting beam; 32. Second connecting beam; 33. Third connecting beam; 34. Fourth connecting beam; 4. Crossbeam; 200. Guide rail group; 201. Guide rail; 300. Traction assembly; 302. Car fixed pulley group; 3 021. Fixed pulley of car; 303. Fixing device; 304. Fixed pulley group of counterweight; 3041. Fixed pulley of counterweight; 305. Hoisting machine; 3051. Hoisting wheel; 306. Moving pulley group of counterweight; 3061. Moving pulley of counterweight; 307. Moving pulley group of car; 3071. Moving pulley of car; 308. Counterweight; 3081. Counterweight block; 3082. Counterweight frame; 309. Hoisting rope; 400. Main beam; 500. Following beam. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the utility model more clear, the embodiments of the utility model will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other arbitrarily without conflict.

[0046] like Figure 1 , 2 As shown, Figure 1 , 2 An elevator 10 in an embodiment of the present application is provided, and the elevator 10 may be a machine room-less freight elevator. The elevator 10 includes a car 100 , a traction assembly 300 , and a plurality of guide rail groups 200 .

[0047] like Figure 3 As shown, the car 100 includes a box body 1 and a plurality of car frames 2. The box body 1 can be constructed as a square box body 1. The box body 1 is used to load cargo. The box body 1 includes a top plate 11, a bottom plate 12 and two side plates 13. The top plate 11 is arranged above the bottom plate 12, and the top plate 11 and the bottom plate 12 are parallel to each other. The top plate 11 and the bottom plate 12 can be arranged horizontally. Both side plates 13 are perpendicular to the bottom plate 12. The two side plates 13 can be arranged vertically. The two side plates 13 are arranged between the top plate 11 and the bottom plate 12, and the two ends of one side plate 13 are respectively connected to one end of the top plate 11 and one end of the bottom plate 12, and the two ends of the other side plate 13 are respectively connected to the other end of the top plate 11 and the other end of the bottom plate 12.

[0048] like Figure 4 , 5As shown, the car frame 2 includes an upper beam 21, a lower beam 22 and two side beams 23. The upper beam 21, the lower beam 22 and the two side beams 23 are all configured as straight strips. The upper beam 21 and the lower beam 22 extend in the horizontal direction, and the upper beam 21 and the lower beam 22 are parallel to each other. The two side beams 23 extend in the vertical direction. The two ends of one side beam 23 are respectively connected to one end of the upper beam 21 and one end of the lower beam 22, and the two ends of the other side beam 23 are respectively connected to the other end of the upper beam 21 and the other end of the lower beam 22. The upper beam 21, the lower beam 22 and the two side beams 23 of the car frame 2 enclose an upright frame. The car frame 2 surrounds the box body 1. The lower beam 22 of the car frame 2 abuts against the plate surface of the bottom plate 12 facing away from the top plate 11, and is connected to the top plate 11. The two side beams 23 of the car frame 2 are respectively in contact with the plate surfaces of the two side panels 13 that are away from each other, and are respectively connected to the two side panels 13. The upper beam 21 is located on the side of the top panel 11 that is away from the bottom panel 12. The bottom panel 12 and the lower beam 22, and the side beam 23 and the side panel 13 can be welded, bolted, screwed or riveted.

[0049] There are multiple car frames 2, and the number of car frames 2 is plural. The multiple car frames 2 are arranged in sequence from the front end to the rear end of the box body 1. Two adjacent car frames 2 are arranged at intervals.

[0050] There are multiple guide rail groups 200, and the number of guide rail groups 200 is the same as the number of car frames 2. Each guide rail group 200 includes two guide rails 201. The guide rails 201 extend vertically, and the two guide rails 201 are respectively arranged on opposite sides of the car 100. The guide rail groups 200 are arranged on the car frames 2 in a one-to-one correspondence. The side beams 23 on the opposite sides of each car frame 2 are respectively slidably connected to the two guide rails 201 of the guide rail group 200 corresponding to the car frame 2. A groove is provided on the side of the side beam 23 facing away from the box body 1, and the guide rail 201 is inserted into the groove so that the side beam 23 can only slide along the guide rail 201.

[0051] like Figure 6 As shown, the traction assembly 300 is connected to the car 100 , and the traction assembly 300 is used to drive the car 100 to slide along the guide rail 201 , thereby achieving the lifting and lowering of the car 100 .

[0052] The car frame 2 is the bearing structure of the car 100. The deadweight and load of the car 100 are transmitted by the car frame 2. Since there are plural car frames 2, the car frames 2 and the guide rail groups 200 are arranged in a one-to-one correspondence. Each car frame 2 slides along the guide rail group 200 corresponding thereto. This type of car 100 has high structural strength and the car 100 is subjected to balanced force.

[0053] In addition, when it is necessary to increase the load capacity to modify the car 100, only a car frame 2 can be added in the middle of the box body 1 of the car 100, and a set of guide rail groups 200 that cooperate with it can be added. Since the added car frame 2 is located in the middle of the box body 1, it will not cause uneven force and weaken the force.

[0054] In an illustrative embodiment, Figure 6 As shown, the traction assembly 300 includes a plurality of car movable pulley groups 307 and a traction rope 309. The plurality of car movable pulley groups 307 are all arranged below the box body 1. Each car movable pulley group 307 includes a plurality of car movable pulleys 3071. The car movable pulleys 3071 can rotate around their axles. The axles of the car movable pulleys 3071 are arranged horizontally and are all perpendicular to the lower beam 22 of the car frame 2. The car movable pulley groups 307 correspond to the car frame 2 one by one, and the car frame 2 is connected to the axle of each car movable pulley 3071 of the corresponding car movable pulley group 307.

[0055] The pulling rope 309 may be a steel cable. The pulling rope 309 passes around the multiple car movable pulleys 3071 of the car movable pulley group 307. After the pulling rope 309 is tightened, it can support the car 100. The pulling rope 309 pulls the car 100 up and down.

[0056] The pulling rope 309 lifts the car 100, and the deadweight and load of the car 100 are transmitted to the pulling rope 309 by the car frame 2 and the car movable pulley group 307. Since the number of car frames 2 is plural, and the car frames 2 and the car movable pulley groups 307 are arranged one by one, the load of the box body 1 can be more evenly distributed to each car frame 2 and each car movable pulley group 307, and the force on the car 100 is more uniform and reasonable.

[0057] In an illustrative embodiment, the car 100 further includes a plurality of cross beams 4. The extending direction of the cross beams 4 is the same as the extending direction of the lower beam 22 of the car frame 2. The plurality of cross beams 4 are all arranged below the box body 1 and are all connected to the box body 1. The cross beams 4 and the box body 1 may be welded, bolted or riveted.

[0058] The number of cross beams 4 is the same as the number of car frames 2, and the cross beams 4 correspond to the car frames 2 one by one. Each cross beam 4 is arranged on one side of the lower beam 22 of the car frame 2 corresponding thereto, and is arranged at intervals from the lower beam 22. The car movable pulley 3071 of each car movable pulley block 307 is arranged between the lower beam 22 of the car frame 2 corresponding to the car movable pulley block 307 and the cross beam 4 corresponding to the car frame 2. One end of the wheel axle of the car movable pulley 3071 is connected to the lower beam 22 of the car frame 2, and the other end is connected to the cross beam 4.

[0059] The crossbeam 4 is arranged at the bottom of the box body 1 and connected to the box body 1, which can increase the structural strength of the car 100. At the same time, the car movable pulley block 307 is fixed on the crossbeam 4 and the car frame 2, and the crossbeam 4 and the car frame 2 share the force applied by the car movable pulley block 307 to the car 100, so that the force on the car 100 is more reasonable.

[0060] In an illustrative embodiment, Figure 5 As described above, the number of the cross beam 4, the car movable pulley block 307 and the car frame 2 are all two. One cross beam 4 is arranged on the side of the first lower beam 22 of the car frame 2 facing away from the second lower beam 22 of the car frame 2, and the other cross beam 4 is arranged on the side of the second lower beam 22 of the car frame 2 facing away from the first lower beam 22 of the car frame 2. The distance from the car frame 2 near the front end of the box body 1 to the front end of the box body 1 is the same as the distance from the car frame 2 near the rear end of the box body 1 to the rear end of the box body 1.

[0061] The two cross beams 4 are respectively arranged on the opposite sides of the lower beams 22 of the two car frames 2, and the two cross beams 4 are symmetrically arranged on the outer sides of the two car frames 2, so that the force on the car 100 is more balanced and reasonable.

[0062] In an exemplary embodiment, each car movable pulley group 307 includes two car movable pulleys 3071. The two car movable pulleys 3071 are respectively arranged on opposite sides close to the box body 1. The two car movable pulleys 3071 are respectively close to opposite sides of the box body 1 to prevent the pulling rope 309 from interfering with the car 100, so that the pulling rope 309 rubs against the two sides of the car 100.

[0063] In an exemplary embodiment, the car 100 further includes a plurality of connecting beams 3. The connecting beams 3 are configured as straight bars. The connecting beams 3 are perpendicular to the upper beams 21 and the side beams 23. The plurality of connecting beams 3 connects every two adjacent car frames 2 together.

[0064] A plurality of connecting beams 3 connect two adjacent car frames 2 together, which can improve the structural strength of the car frame 2, improve the synchronization of multiple car frames 2 during operation, increase the stability of the car 100 during operation, and improve the structural strength of the car 100.

[0065] In an illustrative embodiment, the connecting beam 3 is a channel steel. Channel steel has high structural strength, strong bending moment resistance, and low cost. Using channel steel to connect the car frame 2 together can further improve the structural strength of the car 100.

[0066] In an illustrative embodiment, Figure 4As shown, the multiple connecting beams 3 include a first connecting beam 31 and a second connecting beam 32. A plurality of first connecting beams 31 are provided, and the plurality of first connecting beams 31 are all provided on the side of the upper beam 21 facing away from the box body 1, and the plurality of first connecting beams 31 are sequentially arranged along the extension direction of the upper beam 21. The two ends of the first connecting beam 31 are respectively connected to the upper beams 21 of two adjacent car frames 2. The ends of the first connecting beam 31 and the upper beam 21 may be screwed, riveted or welded.

[0067] There are multiple second connection beams 32, all of which are arranged on the side of the upper beam 21 facing the box body 1, and the multiple second connection beams 32 are arranged in sequence along the extension direction of the upper beam 21. The two ends of the second connection beam 32 are respectively connected to the upper beams 21 of two adjacent car frames 2. The ends of the second connection beam 32 and the upper beam 21 can be screwed, riveted or welded.

[0068] In this way, two adjacent upper beams 21 are connected together by multiple first connecting beams 31 and multiple second connecting beams 32. The connection between the two upper beams 21 is very strong, which improves the structural strength of the top of the multiple car frames 2, and the car 100 is more stable during operation.

[0069] In an illustrative embodiment, Figure 5 As shown, the plurality of connection beams 3 further include a third connection beam 33. The third connection beam 33 is perpendicular to the side beam 23 of the car frame 2. The third connection beam 33 is arranged between two adjacent side beams 23 located on the same side of the box body 1, and both ends of the third connection beam 33 are respectively connected to the two adjacent side beams 23. The end of the third connection beam 33 and the side beam 23 can be screwed, riveted or welded.

[0070] In this way, the third connecting beam 33 can connect two adjacent side beams 23 together, and the connection between the two side beams 23 is very strong, which enhances the structural strength of the side portions of the multiple car frames 2, and the car 100 is more stable during operation.

[0071] In an illustrative embodiment, a plurality of columns 14 are further provided on the outer side of the box body 1. The columns 14 are vertically provided. The plurality of columns 14 are respectively provided on the outer sides of the side panels 13 of the box body 1. The columns 14 are connected to the side panels 13 of the box body 1. The columns 14 can strengthen the structural strength of the box body 1. The columns 14 can be respectively provided at opposite ends of the side panels 13 of the box body 1.

[0072] The plurality of connecting beams 3 further include a fourth connecting beam 34. The fourth connecting beam 34 is perpendicular to the side beam 23 and the column 14. The fourth connecting beam 34 is connected to the top ends of all the columns 14 located on the same side of the box body 1, and the fourth connecting beam 34 is also connected to all the upper beams 21. The fourth connecting beam 34 and the column 14, and the fourth connecting beam 34 and the upper beam 21 can be screwed, riveted or welded.

[0073] The fourth connecting beam 34 connects the columns 14 and all the upper beams 21 located on the same side of the box body 1, which can further strengthen the structural strength of the box body 1 and the car frame 2 and improve the stability of the car 100 during operation.

[0074] In an illustrative embodiment, Figure 2 As shown, the elevator 10 further includes a main beam 400 and a secondary beam 500. The main beam 400 and the secondary beam 500 may be fixed to a building. The main beam 400 may be arranged above the guide rail 201 located on one side of the car 100, and the secondary beam 500 may be arranged above the guide rail 201 located on the other side of the car 100. The main beam 400 and the secondary beam 500 may be parallel to each other.

[0075] The traction assembly 300 further includes a counterweight fixed pulley block 304, a counterweight 308, a traction machine 305, a fixing device 303, a counterweight movable pulley block 306, and a car fixed pulley block 302. The counterweight fixed pulley block 304 is arranged on the main beam 400, and the counterweight fixed pulley block 304 includes a counterweight fixed pulley 3041. The wheel axle of the counterweight fixed pulley 3041 is arranged horizontally. The counterweight fixed pulley 3041 can rotate around its wheel axle.

[0076] The counterweight 308 is arranged below the counterweight fixed pulley block 304. The counterweight 308 includes a counterweight frame 3082 and a counterweight block 3081. There are multiple counterweight blocks 3081, and the multiple counterweight blocks 3081 are all arranged in the counterweight frame 3082. The counterweight block 3081 can be arranged in a plate shape, and the multiple counterweight blocks 3081 are stacked in sequence.

[0077] The counterweight movable pulley block 306 is provided with two counterweight movable pulleys 3061, and the two counterweight movable pulleys 3061 are both arranged at the top of the counterweight frame 3082. The wheel axles of the counterweight movable pulleys 3061 are arranged horizontally and parallel to the wheel axles of the counterweight fixed pulley 3041. The counterweight movable pulleys 3061 can rotate around their own wheel axles.

[0078] The traction machine 305 is arranged on the main beam 400. The traction machine 305 is located on one side of the counterweight fixed pulley group 304. The traction machine 305 is provided with a traction wheel 3051. The axis of the traction wheel 3051 is arranged horizontally, and the wheel axle of the traction wheel 3051 is perpendicular to the wheel axle of the counterweight fixed pulley 3041.

[0079] The fixing device 303 may be a rope head plate. The fixing device 303 is fixed to the main beam 400. The fixing device 303 and the main beam 400 may be welded, bolted or riveted. The fixing device 303 is used to fix the opposite ends of the towing rope 309.

[0080] The car fixed pulley group 302 is arranged on the secondary beam 500. The car fixed pulley group 302 includes a plurality of car fixed pulleys 3021. Two car fixed pulleys 3021 can be arranged. The two car fixed pulleys 3021 are arranged at intervals. The car fixed pulleys 3021 can rotate around their wheel shafts.

[0081] One end of the traction rope 309 is connected to the fixing device 303, and the other end is connected to the fixing device 303 by passing through the counterweight movable pulley group 306, the counterweight fixed pulley group 304, the traction wheel 3051, a group of car movable pulley groups 307, the car fixed pulley group 302, and another group of car movable pulley groups 307.

[0082] In this embodiment, if Figure 6 As shown, one end of the traction rope 309 is connected to the fixing device 303, and the other end thereof first passes around a counterweight movable pulley 3061, then passes around a counterweight fixed pulley 3041, then passes around another counterweight movable pulley 3061, then passes around the traction wheel 3051, then passes around two car movable pulleys 3071 of the first group of car movable pulley sets 307, then passes around two car fixed pulleys 3021, then passes around two car movable pulleys 3071 of the second group of car movable pulley sets 307, and finally is connected to the fixing device 303.

[0083] Therefore, the traction ratio of the elevator 10 is 4:1, and the traction assembly 300 has a simple and compact structure and a high load-bearing capacity.

[0084] In the description of the present invention, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "relative", "four corners", "periphery", "'mouth'-shaped structure" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the structure referred to has a specific orientation, is constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0085] In the description of the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "connection", "direct connection", "indirect connection", "fixed connection", "installation", and "assembly" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; the terms "installation", "connection", and "fixed connection" can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0086] Although the implementation methods disclosed in the utility model are as above, the above contents are only implementation methods adopted to facilitate the understanding of the utility model, and are not used to limit the utility model. Any technician in the field to which the utility model belongs can make any modifications and changes in the form and details of implementation without departing from the spirit and scope disclosed in the utility model, but the scope of patent protection of the utility model shall still be defined by the attached claims.

Claims

1. An elevator with high structural strength, characterized in that: include: A car, comprising a box body and a plurality of car frames connected to the box body, wherein the car frames are constructed as upright frames, surround the box body, and the number of the car frames is plural; A plurality of guide rail groups, including two guide rails extending vertically and respectively arranged on opposite sides of the car, the guide rail groups corresponding to the car frames one by one, and opposite sides of each car frame are respectively slidably connected to the two guide rails of the guide rail group corresponding to the car frame; and The traction assembly is used to drive the car to slide along the guide rail.

2. The elevator according to claim 1, characterized in that The traction assembly includes a traction rope and a plurality of car movable pulley blocks arranged below the box body; The car movable pulley blocks are arranged in one-to-one correspondence with the car frames, the car frames are connected to the corresponding car movable pulley blocks, and the pulling ropes pass around a plurality of car movable pulley blocks to carry the car.

3. The elevator according to claim 2, characterized in that: The car further comprises a plurality of cross beams arranged below the box body, and the cross beams are arranged in one-to-one correspondence with the car frame; The crossbeam is arranged on one side of the car frame corresponding to it, and each of the car movable pulley blocks is arranged between the car frame corresponding to it and the crossbeam corresponding to the car frame, and is connected to the crossbeam.

4. The elevator according to claim 3, characterized in that: The number of the car frame, the cross beam and the car movable pulley block are all two, and the two cross beams are respectively arranged on the opposite sides of the two car frames.

5. The elevator according to any one of claims 1 to 4, characterized in that: The car also includes a plurality of connecting beams, and each two adjacent car frames are connected by the plurality of connecting beams.

6. The elevator according to claim 5, characterized in that: The car frame includes an upper beam located above the box body; The plurality of connecting beams include a first connecting beam and a second connecting beam both perpendicular to the upper beam; The first connecting beam is arranged on a side of the upper beam facing away from the box body, and its two ends are respectively connected to the upper beams of two adjacent car frames; The second connecting beam is arranged on a side of the upper beam facing the box body, and two ends of the second connecting beam are respectively connected to the upper beams of two adjacent car frames.

7. The elevator according to claim 5, characterized in that The car frame includes a side beam located on one side of the box body; The plurality of connecting beams include a third connecting beam perpendicular to the side beams; Both ends of the third connecting beam are respectively connected to the side beams of two adjacent car frames.

8. The elevator according to claim 5, characterized in that The connecting beam is a channel steel.

9. The elevator according to any one of claims 2 to 4, characterized in that: The traction ratio of the elevator is set to 4:

1.

10. The elevator according to claim 9, characterized in that The elevator further comprises: a main beam, arranged above the guide rail on one side of the car; and A follower beam, arranged above the guide rail on the other side of the car; The pulling assembly also includes: a counterweight pulley block, arranged on the main beam; A counterweight, arranged below the counterweight fixed pulley block; A counterweight movable pulley block connected to the counterweight; A traction machine is arranged on the main beam and is provided with a traction wheel; A fixing device, arranged on the main beam; A fixed pulley block for the car is arranged on the secondary beam; and Among them, one end of the traction rope is connected to the fixing device, and the other end is connected to the fixing device by passing through the heavy movable pulley group, the heavy fixed pulley group, the traction wheel, a group of the car movable pulley group, the car fixed pulley group, and another group of the car movable pulley group.

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