Assembly type construction key node system with externally-installed elevator

Abstract

The utility model belongs to the technical field of externally-installed elevators, and particularly relates to an externally-installed elevator assembly type construction key node system which comprises a cushion layer, a prefabricated raft base is arranged above the cushion layer through fixing pieces, and lower supporting columns are fixedly installed at the four corners of the upper end of the prefabricated raft base respectively. A baffle is fixedly connected between every two adjacent lower supporting columns, the upper portions of the four lower supporting columns are connected with prefabricated steel frames in a sleeved mode through connecting pieces, the prefabricated steel frames are arranged in multiple layers from bottom to top, and every two prefabricated steel frames are fixedly connected through four upper supporting columns. The construction method has the beneficial effects that through the arrangement of the prefabricated raft base and the fixing pieces, constructors can rapidly install the elevator base, site construction pouring of the constructors is avoided, the workload of site installation is reduced, and the working efficiency and stability are improved. A novel technical system is researched and developed on the basis of elevator hoistway construction for many years.

Description

Technical Field

[0001] This utility model belongs to the field of elevator installation technology for old residential buildings, and in particular relates to a key node system for prefabricated construction of elevator installation. Background Technology

[0002] Most existing external elevator installations involve on-site concrete pouring and steel welding. On-site concrete pouring for the foundation construction can disrupt residents' daily lives and cause inconvenience. The welding flashes during steel welding can cause eye damage to residents, especially children. Furthermore, the overall construction period is long, the construction efficiency is low, and the cost is high. Utility Model Content

[0003] The purpose of this utility model is to provide a key node system for the prefabricated construction of external elevators in order to solve the above-mentioned problems.

[0004] This utility model achieves the above objectives through the following technical solutions:

[0005] A key node system for prefabricated construction of external elevators includes a foundation layer. A prefabricated raft base is installed on the foundation layer via fasteners. Lower support columns are fixedly installed at the four corners of the upper end of the prefabricated raft base. A baffle is fixedly connected between two adjacent lower support columns. The four lower support columns are respectively connected to a prefabricated steel frame via connectors. The prefabricated steel frame has multiple layers from bottom to top. Two prefabricated steel frames are fixedly connected by four upper support columns.

[0006] The fastener includes multiple fixing rods fixed on the pad layer. The fixing rods are used in conjunction with through holes opened on the precast raft base. The upper part of the fixing rod is provided with external threads for use with positioning nuts.

[0007] Preferably, the prefabricated steel frame includes four connection nodes, the connection nodes are square steel tubes, and adjacent two connection nodes are fixedly connected by horizontal columns, and the prefabricated steel frame is a U-shaped steel frame.

[0008] Preferably, a partition is fixed at the middle position inside the connecting node.

[0009] Preferably, the connector includes a first opening and a second opening respectively opened at the lower part of the connecting node, and a third opening and a fourth opening respectively opened at the upper part of the connecting node, wherein the first opening, the second opening, the third opening and the fourth opening all penetrate the body of the connecting node.

[0010] Preferably, the first opening is fitted through the lower support column on one side of the lower part of the connecting node, and the second opening is fitted through the lower support column on the other side of the lower part of the connecting node. The first opening and the second opening are offset at the lower part of the connecting node, and the first opening and the second opening are respectively fixedly connected to the lower support column by bolts.

[0011] Preferably, the third opening is located on the same side of the connecting node as the first opening and the third opening penetrates the upper support column; the fourth opening is located on the same side of the connecting node as the second opening and the third opening penetrates the upper support column; the third opening and the fourth opening are staggered and arranged on the upper part of the connecting node.

[0012] The beneficial effects are as follows: By setting up a precast raft foundation and fixing components, workers can modify key nodes, avoid on-site construction, reduce the amount of concrete pouring, and quickly install the elevator base, improving work efficiency and stability. By setting up a precast steel frame, workers can speed up the installation and fixing of the elevator structure, avoid on-site welding of the steel structure, and reduce on-site noise during decoration construction. This utility model, through technical improvements, shortens the construction period. The original on-site construction cycle was 35-40 days, but after the improvement, the on-site construction cycle is shortened to 15-20 days, reducing construction costs by about 30% and improving construction efficiency. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a perspective view of a key node system for the prefabricated construction of an externally installed elevator as described in this utility model;

[0015] Figure 2 This is a partial sectional view of a key node system for prefabricated construction of an externally installed elevator as described in this utility model;

[0016] Figure 3 This is a schematic diagram of the prefabricated raft base structure of a key node system for the prefabricated construction of an externally mounted elevator, as described in this utility model.

[0017] Figure 4 This is a three-dimensional view of the prefabricated steel frame of the key node system for the prefabricated construction of an external elevator as described in this utility model;

[0018] Figure 5This is a schematic diagram of the subbase structure of a key node system for the prefabricated construction of an externally installed elevator, as described in this utility model.

[0019] The following are the descriptions of the reference numerals:

[0020] 1. Subbase; 11. Fixing rod; 12. Positioning nut; 2. Precast raft base; 21. Through hole; 3. Lower support column; 4. Connection node; 41. First opening; 42. Second opening; 43. Third opening; 44. Fourth opening; 5. Horizontal column; 6. Upper support column; 7. Baffle; 8. Partition. Detailed Implementation

[0021] The technical solution of this utility model will be further explained below with reference to the accompanying drawings:

[0022] like Figure 1-Figure 5 As shown, a key node system for the prefabricated construction of an externally installed elevator includes a base layer 1, which is laid at the bottom of a trench. Four fixing rods 11 are fixedly installed on the base layer 1 in a rectangular shape. A prefabricated raft base 2 is installed on the top of the base layer 1 by fasteners. The prefabricated raft base 2 has four through holes 21, through which the fixing rods 11 pass. The upper part of the fixing rod 11 has an external thread, and a positioning nut 12 is sleeved on the external thread. The positioning nut 12 fixes the prefabricated raft base 2 on the top of the base layer 1.

[0023] Lower support columns 3 are fixedly installed at the four corners of the upper end of the precast raft foundation 2. A baffle 7 is fixedly connected between two adjacent lower support columns 3. The baffle 7 is a steel plate shear wall, which is made by pouring concrete between two steel plates. The baffle 7, the cushion layer 1, the precast raft foundation 2 and the lower support columns 3 are all located in the trench opened in the ground. The baffle 7 has the function of retaining soil. The four lower support columns 3 are respectively connected to the precast steel frame through connectors. The precast steel frame is set in multiple layers from bottom to top. Two precast steel frames are fixedly connected by four upper support columns 6. Both the lower support columns 3 and the upper support columns 6 are made of square steel pipes.

[0024] The foundation layer 1, the precast raft base 2 and the lower support column 3 are assembled on site. The main purpose is that the distance between buildings in old residential areas is generally small, the roads are narrow, and it is inconvenient for large vehicles, machinery and equipment to enter and exit. Such a community environment also brings certain difficulties to the construction of elevator installation. Therefore, on-site assembly installation is adopted, which can shorten the construction cycle and make higher material utilization.

[0025] The precast steel frame includes four connection nodes 4, which are made of square steel tubes. Two adjacent connection nodes 4 are fixedly connected by horizontal columns 5. The precast steel frame is a U-shaped steel frame. A partition 8 is fixed in the middle position inside the connection node 4, which facilitates the accurate positioning of the lower support column 3 inside the connection node 4 and makes it easy to fix.

[0026] The connector includes a first opening 41 and a second opening 42 respectively opened at the lower part of the connecting node 4. There are two of each of the first opening 41 and the second opening 42. A third opening 43 and a fourth opening 44 are respectively opened at the upper part of the connecting node 4. There are two of each of the third opening 43 and the fourth opening 44. The first opening 41, the second opening 42, the third opening 43 and the fourth opening 44 all penetrate through the body of the connecting node 4.

[0027] The first opening 41 is inserted through the lower support column 3 on one side of the lower part of the connecting node 4, and the second opening 42 is inserted through the lower support column 3 on the other side of the lower part of the connecting node 4. The first opening 41 and the second opening 42 are offset at the lower part of the connecting node 4, and the first opening 41 and the second opening 42 are respectively fixedly connected to the lower support column 3 by bolts.

[0028] The third opening 43 and the first opening 41 are located on the same side of the connecting node 4, and the third opening 43 penetrates the upper support column 6. The fourth opening 44 and the second opening 42 are located on the same side of the connecting node 4, and the third opening 43 penetrates the upper support column 6. The third opening 43 and the fourth opening 44 are staggered and opened on the upper part of the connecting node 4.

[0029] Working principle: During use, the construction personnel place the precast raft base 2 on the upper end of the cushion layer 1. The fixing rod 11 fixed on the cushion layer 1 passes through the through hole 21 on the precast raft base 2. Then, the construction personnel use the positioning nut 12 to fix the precast raft base 2 to the cushion layer 1. The four corners of the upper end of the precast raft base 2 are respectively fixed with lower support columns 3. Adjacent lower support columns 3 are fixedly connected by baffles 7. The four connecting nodes 4 of the precast steel frame are respectively fitted on the four lower support columns 3. The lower part of the connecting node 4 is fixed to the upper end of the lower support column 3 by bolts. The upper part of the connecting node 4 is fitted with an upper support column 6. The upper support column 6 is fixed to the upper part of the connecting node 4 by bolts. Multiple layers of precast steel frames are set from top to bottom. The precast steel frame as a whole is set as a U-shaped structure.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A key node system for prefabricated construction of externally installed elevators, comprising a foundation layer (1), characterized in that: A precast raft base (2) is provided above the cushion layer (1) by fasteners. Lower support columns (3) are fixedly installed at the four corners of the upper end of the precast raft base (2). A baffle (7) is fixedly connected between two adjacent lower support columns (3). The four lower support columns (3) are respectively connected to the precast steel frame by connectors. The precast steel frame is provided with multiple layers from bottom to top. Two precast steel frames are fixedly connected by four upper support columns (6). The fastener includes a plurality of fixing rods (11) fixed on the pad (1). The fixing rods (11) are used in conjunction with through holes (21) opened on the precast raft base (2). The upper part of the fixing rods (11) is provided with external threads that cooperate with positioning nuts (12).

2. The key node system for prefabricated construction of externally installed elevators according to claim 1, characterized in that: The prefabricated steel frame includes four connection nodes (4), each connection node (4) is a square steel tube, and two adjacent connection nodes (4) are fixedly connected by a horizontal column (5). The prefabricated steel frame is a U-shaped steel frame.

3. The key node system for prefabricated construction of externally installed elevators according to claim 2, characterized in that: A partition (8) is fixed in the middle position inside the connecting node (4).

4. The key node system for prefabricated construction of externally installed elevators according to claim 3, characterized in that: The connector includes a first opening (41) and a second opening (42) respectively opened at the lower part of the connecting node (4), and a third opening (43) and a fourth opening (44) respectively opened at the upper part of the connecting node (4). The first opening (41), the second opening (42), the third opening (43) and the fourth opening (44) all penetrate the body of the connecting node (4).

5. The key node system for prefabricated construction of externally installed elevators according to claim 4, characterized in that: The first opening (41) is fitted through the lower support column (3) on one side of the lower part of the connecting node (4), and the second opening (42) is fitted through the lower support column (3) on the other side of the lower part of the connecting node (4). The first opening (41) and the second opening (42) are offset and set at the lower part of the connecting node (4). The first opening (41) and the second opening (42) are respectively fixedly connected to the lower support column (3) by bolts.

6. The key node system for prefabricated construction of externally installed elevators according to claim 5, characterized in that: The third opening (43) and the first opening (41) are located on the same side of the connecting node (4) and the third opening (43) penetrates the upper support column (6). The fourth opening (44) and the second opening (42) are located on the same side of the connecting node (4) and the third opening (43) penetrates the upper support column (6). The third opening (43) and the fourth opening (44) are staggered and set on the upper part of the connecting node (4).

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