Elevator host installation structure

By designing an elevator main engine installation structure, the main engine is installed on the main engine rack, the main engine rack is supported on the counterweight guide rail, and the guide rail supports components to assist in supporting, the problem of the traditional elevator main engine installation method requires steel beam openings and counterweight guide rails to be loaded, and the elevator main engine installation with low cost and low manufacturing cost is achieved.

CN222833840UActive Publication Date: 2025-05-06HANGZHOU OPTIMAX TECH
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Patent Information

Application Number
CN202421685280.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-16
Publication Date
2025-05-06
Estimated Expiration
2034-07-16

AI Technical Summary

Technical Problem

The installation method of traditional machine-free elevator main machine requires steel beam installation holes to be reserved on the shaft wall, and the top-level space requirements are high. The workload of shaft rectification after replacing the elevator manufacturer is large, and the existing fixed method requires solid weight guide rails to increase manufacturing costs.

Method used

Design an elevator main engine installation structure. The main engine is installed on the main engine frame. The main engine frame is supported on the counterweight guide rail and is supported by the guide rail support component. The counterweight guide rail is connected to the shaft wall through the guide rail support component to avoid openings of the steel beam and reduce the load on the counterweight guide rail, so that it can be selected with a hollow structure.

Benefits of technology

The installation method is realized without the need to reserve steel beam installation holes on the shaft wall, which reduces the requirements for the top space of the elevator, avoids opening of steel beams, and reduces the load on the counterweight guide rails, and reduces the manufacturing cost.

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Abstract

The elevator main engine mounting structure comprises a main engine, a main engine rack, a counterweight guide rail and a guide rail supporting assembly, and the main engine rack is used for bearing the main engine; the counterweight guide rail is mounted on the hoistway wall and connected with the main machine frame, and the counterweight guide rail is located below the main machine frame and used for bearing the main machine frame; the guide rail supporting assembly is installed on the counterweight guide rail, connected with the main machine frame and the well wall and used for supporting the main machine frame. In this way, on one hand, the main engine can be arranged downwards, steel beam installation holes do not need to be reserved in the well wall, the main engine can be installed without a machine room, and therefore the requirement of an elevator with the elevator main engine installation structure for the top layer space can be lowered, and steel beam trepanning is avoided; and on the other hand, compared with an installation mode of a solid counterweight guide rail, the weight of the counterweight guide rail can be reduced, the counterweight guide rail can be of a hollow structure, and the effect of reducing the cost is achieved.
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Description

Technical Field

[0001] The utility model belongs to the technical field related to the installation of an elevator host, and in particular relates to an elevator host installation structure. Background Art

[0002] The main unit of a traditional machine roomless elevator is mainly installed on the load-bearing steel beam at the top of the shaft. This installation method requires reserving steel beam installation holes on the shaft wall, and at the same time has high requirements for the top floor of the elevator. Each elevator manufacturer has different requirements for the location and size of the holes in the shaft steel beam, which requires early docking with the manufacturer before the construction of the building. If the elevator manufacturer is changed later, the workload of shaft rectification is large. In addition, another way to fix the main unit of an existing machine roomless elevator is to fix the main unit on the counterweight guide rail and the car guide rail. Although this method can overcome the defects of installing the main unit on the load-bearing steel beam at the top of the shaft, in order to meet the requirements for the support of the main unit, the solution of fixing the main unit on the counterweight guide rail and the car guide rail usually requires setting the counterweight guide rail as a solid rail, which will increase the overall manufacturing cost of the elevator. Utility Model Content

[0003] In view of this, it is necessary to provide an elevator host installation structure that can adapt to the hoistway without the need for steel beam openings, has low top floor space requirements, and can use non-solid guide rails for counterweight guide rails.

[0004] An elevator host installation structure, the elevator host installation structure comprising:

[0005] Host;

[0006] A host rack, used for carrying the host;

[0007] A counterweight guide rail is installed on the shaft wall and connected to the main frame, wherein the counterweight guide rail is located below the main frame and is used to support the main frame;

[0008] A guide rail support assembly is installed on the counterweight guide rail and is respectively connected to the main machine frame and the shaft wall, and is used to support the main machine frame.

[0009] It can be understood that the main engine is installed on the main engine frame, and the main engine frame is supported on the counterweight guide rail, and is assisted by the guide rail support assembly, and the counterweight guide rail is connected to the shaft wall through the guide rail support assembly. In this way, on the one hand, the main engine can be placed downward, without reserving steel beam mounting holes on the shaft wall, and the main engine can be installed without a machine room, thereby reducing the requirements of the elevator with the elevator main engine mounting structure for the top space and avoiding steel beam openings; on the other hand, compared with the installation method of solid counterweight guide rails, the present application can also reduce the load of the counterweight guide rails, so that the counterweight guide rails can use a hollow structure, which has the effect of reducing costs.

[0010] In one embodiment, the guide rail support assembly includes a secondary rail support frame and a tie bracket, and the secondary rail support frame and the tie bracket are respectively crimped with the counterweight guide rail;

[0011] Among them, one end of the auxiliary rail support frame abuts against the main frame and is connected to the main frame, and the reinforcement bracket is used to connect to the shaft wall.

[0012] It can be understood that the counterweight guide rail and the main machine frame are fastened to the shaft wall by a fastening bracket, so that the guide rail support assembly can bear the load of the main machine frame.

[0013] In one of the embodiments, a first bending plate and a second bending plate are formed on the auxiliary rail support frame, and the first bending plate is attached to the main frame and connected to the main frame;

[0014] Along the extension direction of the counterweight guide rail, the second bending plate and the first bending plate are arranged at two ends of the auxiliary rail support frame.

[0015] It can be understood that the auxiliary rail support frame is connected to the main frame with a first bent plate, which can facilitate the assembly connection between the auxiliary rail support frame and the main frame, and increase the contact area between the auxiliary rail support frame and the main frame when they are connected, which has the effect of improving the connection stability between the auxiliary rail support frame and the main frame; and a second bent plate is formed on the auxiliary rail support frame, which can improve the structural strength of the auxiliary rail support frame.

[0016] In one embodiment, the tie bracket includes a tie main plate and a connecting plate, and the tie main plate is arranged on a side surface of the auxiliary rail support frame away from the counterweight guide rail and is simultaneously crimped with the auxiliary rail support frame and the counterweight guide rail;

[0017] Wherein, the connecting plate is arranged on one end of the reinforcing main plate and is respectively connected to the reinforcing main plate and the well wall.

[0018] It can be understood that the structural arrangement of the above-mentioned tie-fastening main plate and the connecting plate can facilitate the assembly connection between the tie-fastening bracket, the counterweight guide rail and the shaft wall.

[0019] In one embodiment, the counterweight guide rail extends into the mainframe frame and abuts against the top plate of the mainframe frame;

[0020] Wherein, the host is installed on the top plate.

[0021] It can be understood that the counterweight guide rail abuts against the top plate of the main frame, so that the counterweight guide rail itself can be used to support the main frame.

[0022] The elevator host installation structure also includes a car guide rail and a guide rail bracket, wherein the car guide rail is connected to the host frame and is used to support the host frame;

[0023] Wherein, the guide rail bracket is respectively connected to the counterweight guide rail, the car guide rail and the hoistway wall.

[0024] It can be understood that the guide rail bracket is used to connect with the counterweight guide rail, the car guide rail and the shaft wall respectively, so that the guide rail bracket supports the car guide rail and the counterweight guide rail, and has the function of reinforcing the counterweight guide rail and the car guide rail.

[0025] In one of the embodiments, along the extension direction of the counterweight guide rail, the distance between the guide rail bracket and the main machine frame is set to L, wherein 200 mm ≥ L ≥ 150 mm.

[0026] It can be understood that by setting the distance between the guide rail bracket and the main frame, it can be ensured that the deformation and stress of the counterweight guide rail meet the design requirements.

[0027] In one embodiment, the guide rail bracket includes a U-shaped frame body and two L-shaped frames, and the two L-shaped frames are arranged at both ends of the U-shaped frame body for connecting to the shaft wall;

[0028] Wherein, the U-shaped frame body is connected to the counterweight guide rail and the car guide rail at the same time.

[0029] It can be understood that, through the structural arrangement of the U-shaped frame body and the two L-shaped frames, the guide rail bracket can simplify the structure of the guide rail bracket while satisfying the connection between the two counterweight guide rails and the car guide rails.

[0030] In one embodiment, the guide rail support assembly includes two auxiliary rail support frames, and the two auxiliary rail support frames are arranged on both sides of the main frame.

[0031] Among them, the elevator main engine installation structure also includes a car guide rail and a main rail support frame, the main rail support frame is installed on the car guide rail and connected to the main engine frame upward, and a three-point support structure is formed between the main rail support frame and the two auxiliary rail support frames for supporting the main engine frame.

[0032] It can be understood that the main rail support frame and two auxiliary rail support frames are used to jointly support the main frame, which can improve the stability of the main frame support.

[0033] In one of the embodiments, the elevator host installation structure further includes a car guide rail, the car guide rail extends upward relative to the host frame and is connected to the host frame for supporting the host frame;

[0034] Wherein, the car guide rail is connected with a fixed bracket on the part extending out of the main frame, and the fixed bracket is used to connect to the hoistway wall.

[0035] It is understandable that the fixed bracket is used to connect the car guide rail and the hoistway wall, which can support the car guide rail and strengthen the car guide rail.

[0036] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0037] The elevator main engine installation structure requested for protection in the present application has the main engine installed on a main engine frame, which in turn is supported on a counterweight guide rail and supported by a guide rail support assembly, and the counterweight guide rail is connected to the shaft wall through the guide rail support assembly. In this way, on the one hand, the main engine can be placed downward without reserving steel beam installation holes on the shaft wall, and the main engine can be installed without a machine room, thereby reducing the requirements for the top-floor space of the elevator using the elevator main engine installation structure and avoiding opening holes in the steel beam. On the other hand, compared with the installation method of a solid counterweight guide rail, the present application can also reduce the load on the counterweight guide rail, so that the counterweight guide rail can be selected as a hollow structure, which has the effect of reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0039] Figure 1 A three-dimensional diagram of an elevator host installation structure provided in one embodiment of the present application.

[0040] Figure 2 for Figure 1 Enlarged view of the middle P part.

[0041] Figure 3 for Figure 1 Enlarged view of the middle Q section.

[0042] Figure 4 This is a front view of the elevator host installation structure provided in one embodiment of the present application.

[0043] Figure 5 A top view of an elevator host installation structure provided in one embodiment of the present application.

[0044] Figure 6 This is a structural schematic diagram of an elevator mainframe installation structure provided in an embodiment of the present application applied in a hoistway.

[0045] 1. The elevator mainframe is provided with a plurality of support members, each of which is provided with a plurality of support members, and each of which is provided with a plurality of support members. The support members are provided with a plurality of support members, each of which is provided with a plurality of support members. The support members are provided with a plurality of support members, each of which is provided with a plurality of support members. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0047] It should be noted that when an element is referred to as being "provided on" another element, it may be directly provided on the other element or there may be a central element. When an element is considered to be "provided on" another element, it may be directly provided on the other element or there may be a central element at the same time. When an element is considered to be "fixed to" another element, it may be directly fixed to the other element or there may be a central element at the same time.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0049] The elevator host installation structure 100 for which protection is sought in the present application specifically refers to the installation of the elevator host 10 in the elevator.

[0050] like Figure 1 , Figures 4 to 6As shown, an elevator host installation structure 100 provided in an embodiment of the present application includes a host 10, a host frame 20, a counterweight guide rail 30 and a guide rail support assembly 40. The host 10 is installed on the host frame 20 to support the host 10; the counterweight guide rail 30 is installed on the shaft wall 200 and connected to the host frame 20, and the counterweight guide rail 30 is located below the host frame 20 to support the host frame 20; the guide rail support assembly 40 is installed on the counterweight guide rail 30 and is respectively connected to the host frame 20 and the shaft wall 200 to support the host frame 20.

[0051] As can be seen from the above, the elevator main engine installation structure 100 installs the main engine 10 on the main engine frame 20, and the main engine frame 20 is supported on the counterweight guide rail 30, and is assisted by the guide rail support assembly 40, and the counterweight guide rail 30 is connected to the shaft wall 200 through the guide rail support assembly 40. In this way, on the one hand, the main engine 10 can be placed downward, without reserving steel beam installation holes on the shaft wall 200, and the main engine 10 can be installed without a machine room, thereby reducing the requirements of the elevator using the elevator main engine installation structure 100 for the top space and avoiding steel beam openings; on the other hand, compared with the installation method of a solid counterweight guide rail, the present application can also reduce the load of the counterweight guide rail 30, so that the counterweight guide rail 30 can use a hollow structure, which has the effect of reducing costs.

[0052] In the present application, a shock-absorbing structure is provided between the main engine 10 and the main engine frame 20 to reduce the vibration generated by the operation of the main engine 10 , thereby improving the riding comfort of the elevator to which the elevator main engine installation structure 100 is applied.

[0053] like Figure 1 , Figure 4 As shown, the number of the counterweight guide rails 30 in the elevator mainframe installation structure 100 of the present application is two, and the two counterweight guide rails 30 are respectively connected to the mainframe frame 20, respectively located below the two ends of the mainframe frame 20, and are used together to support the mainframe frame 20. Accordingly, the number of the guide rail support components 40 is also two groups, and one group of guide rail support components 40 is respectively connected to the two counterweight guide rails 30, which is used to assist in supporting the mainframe frame 20. Here, the mainframe frame 20 is arranged on the top of the counterweight guide rail 30 and connected to the mainframe frame 20, wherein a plug (not shown) is arranged between the counterweight guide rail 30 and the mainframe frame 20, and the plug is used to adjust the horizontality of the mainframe frame 20. Here, the counterweight guide rail 30 extends into the mainframe frame 20 and abuts against the top plate 21 of the mainframe frame 20, wherein the mainframe 10 is installed on the top plate 21. Of course, in other embodiments, the number of guide rail support assemblies 40 can be configured as a group, and the guide rail support assembly 40 is arranged on a side of the host frame 20 where the host 10 is installed, which will not be elaborated here.

[0054] like Figure 1 , Figure 4 and Figure 6 As shown, the guide rail support assembly 40 includes a secondary rail support frame 41 and a tie bracket 42, and the secondary rail support frame 41 and the tie bracket 42 are respectively crimped with the counterweight guide rail 30; wherein, one end of the secondary rail support frame 41 abuts against the main frame 20 and is connected to the main frame 20, and the tie bracket 42 is used to connect the shaft wall 200. In other words, the counterweight guide rail 30 and the main frame 20 are tied to the shaft wall 200 by the tie bracket 42, so that the guide rail support assembly 40 can bear the load on the main frame 20. Here, the secondary rail support frame 41 and the tie bracket 42 are both configured as sheet metal structures. It should be noted that the implementation method of how the secondary rail support frame 41 and the tie bracket 42 are crimped with the counterweight guide rail 30 can adopt the existing conventional method, and the tie bracket 42 and the shaft wall 200 can be specifically assembled and connected by expansion bolts, which will not be elaborated here.

[0055] like Figure 2 As shown, a first bent plate 411 is formed on the auxiliary rail support frame 41, and the first bent plate 411 is attached to the main frame 20 and connected to the main frame 20. Specifically, bolts and other connecting members (not shown) can be used to achieve the assembly connection between the first bent plate 411 and the main frame 20. This can facilitate the assembly connection between the auxiliary rail support frame 41 and the main frame 20, increase the contact area between the auxiliary rail support frame 41 and the main frame 20 when connected, and have the effect of improving the connection stability between the auxiliary rail support frame 41 and the main frame 20.

[0056] like Figure 2 As shown, a second bent plate 412 is also formed on the auxiliary rail support frame 41. Along the extension direction of the counterweight guide rail 30, the second bent plate 412 and the first bent plate 411 are arranged at both ends of the auxiliary rail support frame 41. In this way, the second bent plate 412 bent and formed on the auxiliary rail support frame 41 can improve the structural strength of the auxiliary rail support frame 41 to prevent the auxiliary rail support frame 41 from deforming when the main frame 20 and the counterweight guide rail 30 are tightened. Here, the length of the second bent plate 412 is less than that of the first bent plate 411. For this reason, a notch 413 can be opened on the auxiliary rail support frame 41, which can save the material consumption of the auxiliary rail support frame 41 and reduce the cost.

[0057] like Figure 2 As shown, the reinforcement bracket 42 includes a reinforcement main plate 421 and a connection plate 422. The reinforcement main plate 421 is arranged on a side surface of the auxiliary rail support frame 41 away from the counterweight guide rail 30 and is simultaneously pressed with the auxiliary rail support frame 41 and the counterweight guide rail 30; wherein the connection plate 422 is arranged on one end of the reinforcement main plate 421 and is respectively connected to the reinforcement main plate 421 and the shaft wall 200. This facilitates the assembly connection between the reinforcement bracket 42, the counterweight guide rail 30 and the shaft wall 200.

[0058] like Figure 1 , Figure 4 and Figure 6 As shown, the elevator mainframe mounting structure 100 further includes a car guide rail 50, which is connected to the mainframe frame 20 so that the car guide rail 50 can be used together with the counterweight guide rail 30 to carry the mainframe frame 20. Here, the car guide rail 50 extends upward relative to the mainframe frame 20.

[0059] like Figure 1 , Figures 4 to 6 As shown, the car guide rail 50 is connected to a fixed bracket 51 on the portion extending out of the main frame 20 , and the fixed bracket 51 is used to connect to the hoistway wall 200 , so as to support the car guide rail 50 and strengthen the car guide rail 50 .

[0060] As preferably, Figure 1 As shown, the fixed bracket 51 includes a first fixed plate 511, a second fixed plate 512 and a third fixed plate 513. The first fixed plate 511 is fixedly connected to the car guide rail 50, and the second fixed plate 512 and the third fixed plate 513 are symmetrically arranged on both sides of the first fixed plate 511, and are respectively connected to the first fixed plate 511 and the shaft wall 200.

[0061] like Figure 3 As shown, the first fixing plate 511 is L-shaped, and the first fixing plate 511 includes a vertical connection portion 5111 and a horizontal connection portion 5112 connected to each other, the vertical connection portion 5111 is connected to the car guide rail 50, and the horizontal connection portion 5112 is simultaneously connected to the second fixing plate 512 and the third fixing plate 513. Here, a longitudinal reinforcing rib 5113 is provided on the horizontal connection portion 5112, so that the torsional resistance of the first fixing plate 511 can be strengthened.

[0062] like Figure 1 , Figure 4 and Figure 6 As shown, the car guide rail 50 is connected with a main rail support frame 52, and the main rail support frame 52 is connected upwardly to the main frame 20, so that the car guide rail 50 can use the main rail support frame 52 to support the main frame 20 and achieve the purpose of supporting the main frame 10. Here, the main rail support frame 52 is supported at the lower end of the main frame 20, and a three-point support structure is formed between the main rail support frame 52 and the two auxiliary rail support frames 41 to support the main frame 20, which can improve the supporting stability of the main frame 20. It should be noted that the car guide rail 50 should be pre-opened with holes to connect with the main frame 20 and the main rail support frame 52.

[0063] like Figure 1 , Figures 4 to 6As shown, the elevator mainframe installation structure 100 further includes a guide rail bracket 60, which is respectively connected to the counterweight guide rail 30, the car guide rail 50 and the shaft wall 200. The guide rail bracket 60 supports the car guide rail 50 and the counterweight guide rail 30, and has the function of reinforcing the counterweight guide rail 30 and the car guide rail 50. Here, the guide rail bracket 60 is arranged to enclose the two counterweight guide rails 30 and the car guide rail 50, and the two ends of the guide rail bracket 60 are respectively connected to the shaft wall 200.

[0064] As preferably, Figure 1 As shown, the guide rail bracket 60 includes a U-shaped frame body 61 and two L-shaped frames 62. The two L-shaped frames 62 are arranged at both ends of the U-shaped frame body 61 for connecting the shaft wall 200. The U-shaped frame body 61 is connected to the counterweight guide rail 30 and the car guide rail 50 at the same time. In this way, the guide rail bracket 60 can simplify the structure of the guide rail bracket 60 while meeting the connection between the two counterweight guide rails 30 and the car guide rail 50.

[0065] Preferably, along the extension direction of the counterweight guide rail 30, the distance between the guide rail bracket 60 and the main frame 20 is set to L, wherein 200mm≥L≥150mm. In other words, the distance between the guide rail bracket 60 and the main frame 20 is close enough to ensure that the deformation and stress of the counterweight guide rail 30 meet the design requirements.

[0066] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0067] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments are within the scope of protection required by the present invention.

Claims

1. An elevator host installation structure, characterized in that: The elevator host installation structure (100) comprises: Host (10); A host frame (20) used for carrying the host (10); A counterweight guide rail (30) is installed on the shaft wall (200) and connected to the main machine frame (20); the counterweight guide rail (30) is located below the main machine frame (20) and is used to support the main machine frame (20); A guide rail support assembly (40) is installed on the counterweight guide rail (30) and is respectively connected to the main machine frame (20) and the hoistway wall (200), and is used to support the main machine frame (20).

2. The elevator mainframe installation structure according to claim 1, characterized in that: The guide rail support assembly (40) comprises a secondary rail support frame (41) and a reinforcement bracket (42), and the secondary rail support frame (41) and the reinforcement bracket (42) are respectively crimped to the counterweight guide rail (30); One end of the auxiliary rail support frame (41) abuts against the main machine frame (20) and is connected to the main machine frame (20), and the reinforcing bracket (42) is used to connect to the shaft wall (200).

3. The elevator mainframe installation structure according to claim 2, characterized in that: A first bending plate (411) and a second bending plate (412) are formed on the auxiliary rail support frame (41), and the first bending plate (411) is attached to the main frame (20) and connected to the main frame (20); Along the extension direction of the counterweight guide rail (30), the second bent plate (412) and the first bent plate (411) are arranged at two ends of the auxiliary rail support frame (41).

4. The elevator host installation structure according to claim 2, characterized in that: The reinforcement bracket (42) comprises a reinforcement main plate (421) and a connecting plate (422); the reinforcement main plate (421) is arranged on a side surface of the auxiliary rail support frame (41) away from the counterweight guide rail (30) and is simultaneously press-connected with the auxiliary rail support frame (41) and the counterweight guide rail (30); Wherein, the connecting plate (422) is arranged on one end of the reinforcing main plate (421) and is respectively connected to the reinforcing main plate (421) and the shaft wall (200).

5. The elevator mainframe installation structure according to claim 1, characterized in that: The counterweight guide rail (30) extends into the main machine frame (20) and abuts against the top plate (21) of the main machine frame (20); Wherein, the host (10) is installed on the top plate (21).

6. The elevator mainframe installation structure according to claim 1, characterized in that: The elevator mainframe installation structure (100) further comprises a car guide rail (50) and a guide rail bracket (60); the car guide rail (50) is connected to the mainframe frame (20) and is used to support the mainframe frame (20); Wherein, the guide rail bracket (60) is respectively connected to the counterweight guide rail (30), the car guide rail (50) and the hoistway wall (200).

7. The elevator mainframe installation structure according to claim 6, characterized in that: Along the extension direction of the counterweight guide rail (30), the distance between the guide rail bracket (60) and the main machine frame (20) is set to L, wherein 200 mm ≥ L ≥ 150 mm.

8. The elevator mainframe installation structure according to claim 6, characterized in that: The guide rail bracket (60) comprises a U-shaped frame body (61) and two L-shaped frames (62), wherein the two L-shaped frames (62) are arranged at two ends of the U-shaped frame body (61) and are used to connect to the well wall (200); The U-shaped frame body (61) is connected to both the counterweight guide rail (30) and the car guide rail (50).

9. The elevator mainframe installation structure according to claim 1, characterized in that: The guide rail support assembly (40) comprises two auxiliary rail support frames (41), and the two auxiliary rail support frames (41) are arranged on both sides of the main frame (20). The elevator mainframe installation structure (100) further comprises a car guide rail (50) and a main rail support frame (52), wherein the main rail support frame (52) is installed on the car guide rail (50) and connected upward to the mainframe frame (20), and a three-point support structure is formed between the main rail support frame (52) and the two auxiliary rail support frames (41) for supporting the mainframe frame (20).

10. The elevator mainframe installation structure according to claim 1, characterized in that: The elevator mainframe installation structure (100) further comprises a car guide rail (50), wherein the car guide rail (50) extends upward relative to the mainframe frame (20) and is connected to the mainframe frame (20) for supporting the mainframe frame (20); The car guide rail (50) is connected to a fixed bracket (51) at the portion extending out of the main frame (20), and the fixed bracket (51) is used to connect to the hoistway wall (200).