Welding-free elevator shaft connecting structure

Abstract

The utility model discloses a welding-free elevator shaft connecting structure, and belongs to the technical field of building steel structures and elevator engineering. The welding-free elevator shaft connecting structure comprises a first connecting piece, a second connecting piece, a third connecting piece and a fourth connecting piece, the first connecting piece comprises a first connecting plate and a second connecting plate, and a plurality of first connecting holes are formed in the plate face of the first connecting plate and the plate face of the second connecting plate. The second connecting piece and the third connecting piece are used for connecting an elevator shaft stand column and a crosspiece; the second connecting piece comprises an inner connecting piece, the inner connecting piece is an L-shaped plate, a plurality of second connecting holes are formed in the plate face of the inner connecting piece, and nuts are welded to the inner ends of the second connecting holes. According to the connecting structure, welding-free modular elevator shaft assembly is achieved, the shaft site construction period is smaller than or equal to 3 days, the component transportation size is reduced by 80% compared with a traditional scheme (the size of a single piece is smaller than or equal to 6 m * 1.5 m * 0.6 m), bulk component delivery and site assembly are conducted, and the comprehensive construction cost is reduced by 55% (the labor cost proportion is reduced to 30% or below).

Description

Technical Field

[0001] This invention belongs to the field of building steel structure and elevator engineering technology, specifically relating to a weld-free elevator shaft connection structure. Background Technology

[0002] Existing technological shortcomings:

[0003] (1) Currently, the traditional on-site welding method is used for construction. Construction problems: 1. Scaffolding and manual hoisting equipment are required, resulting in low efficiency of open-air operations; 2. The quality of square / rectangular tube welds is unstable; 3. Thermal deformation leads to deviations in the verticality of the shaft. Economic drawbacks: 1. Labor costs account for 65% of the total cost (high daily wages for welders); 2. The construction period is as long as 20-30 days, affecting the normal use of the building.

[0004] (2) Factory prefabrication of the overall shaft scheme; Production restrictions: 1. Requires a factory area of ​​≥300㎡ (including welding station and finished product stacking area), the overall shaft size is limited (maximum transport size 12m×2.5m×3.2m), transportation and installation difficulties: 2. Oversized transportation requires special permits (cost increases by 40%), on-site hoisting requires large tonnage cranes, and the daily shift cost is higher than that of small tonnage cranes. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a weld-free elevator shaft connection structure, thus solving the problems mentioned in the background art.

[0006] The purpose of this invention is achieved as follows: a weld-free elevator shaft connection structure, comprising: a first connector for connecting adjacent vertical columns of the elevator shaft; the first connector includes a first connecting plate and a second connecting plate, both having multiple first connecting holes on their surfaces; a second connector and a third connector for connecting the elevator shaft columns and crossbars; the second connector includes an inner connector, which is an L-shaped plate, having multiple second connecting holes on its surface, with nuts welded to the inner ends of the second connecting holes. The second connecting holes are internally threaded.

[0007] Furthermore, the first connecting plate is an L-shaped plate, with bent portions at both ends, and multiple first connecting holes are disposed in the bent portions. The second connecting plate is also an L-shaped plate, with nuts welded to the inner ends of the first connecting holes. The interior of each first connecting hole is threaded.

[0008] Furthermore, the second connector also includes an external auxiliary component, which is a W-shaped plate with multiple third connection holes on its surface.

[0009] Furthermore, the third connector is a U-shaped plate, and the bottom plate and side plates of the third connector are provided with multiple mating holes.

[0010] The beneficial effects of this invention are as follows: Compared with the current traditional welding construction methods, the connection structure created by this invention enables weld-free modular elevator shaft assembly, reducing the on-site construction period of the shaft to ≤3 days. The volume of components transported is reduced by 80% compared with traditional methods (single component size ≤6m×1.5m×0.6m). Components are shipped in loose parts and assembled on-site, reducing the overall construction cost by 55% (labor costs account for less than 30%). It improves the efficiency of outdoor operations, avoids quality instability caused by welding, prevents shaft verticality deviations due to thermal deformation, reduces labor costs, requires less factory space, and facilitates transportation.

[0011] Construction efficiency: On-site assembly speed is 30 meters / day (traditional process ≤ 5 meters / day); number of workers reduced to 3 (traditionally 8-10 people are required).

[0012] Quality indicators: Node connection strength ≥ 90% of welded joint, no welding stress, and overall shaft stiffness increased by 15% (finite element analysis results).

[0013] Economic data: No welding personnel or welding site equipment required, manufacturing costs reduced by 50%. Transportation costs reduced by 62%, and transportation volume reduced by 20% compared to the old solution. Overall construction cost reduced from ¥200,000 / unit to ¥80,000 / unit. Attached Figure Description

[0014] Figure 1 This is a first structural schematic diagram of the present invention;

[0015] Figure 2 Created for the present invention Figure 1 Enlarged view of A in the middle;

[0016] Figure 3 This is a schematic diagram of the second structure created by the present invention;

[0017] Figure 4 Created for the present invention Figure 3 Enlarged view of B in the middle;

[0018] Figure 5 A top-view three-dimensional structural diagram of the invention;

[0019] Figure 6 Created for the present invention Figure 5 Enlarged view of C;

[0020] Figure 7 This is a schematic diagram illustrating the completed connection process in the usage state of the invention.

[0021] In the diagram: 1. Column; 2. First connecting plate; 3. Second connecting plate; 4. First connecting hole; 5. Crossbar; 6. Second connecting piece; 7. Third connecting piece; 8. Second connecting hole; 9. Bending part; 10. External auxiliary part; 11. Third connecting hole; 12. Nut; 13. Butt hole. Detailed Implementation

[0022] The invention will be further described below with reference to the accompanying drawings. It should be noted that all directional terms such as up, down, front, back, left, and right appearing in the invention are not intended to limit the invention, but are only used to more clearly explain and interpret the invention. Example

[0023] like Figure 1-6 As shown, this embodiment discloses a weld-free elevator shaft connection structure, which includes: a first connector for connecting adjacent vertical columns 1 of the elevator shaft; the first connector includes a first connecting plate 2 and a second connecting plate 3, and the surfaces of the first connecting plate 2 and the second connecting plate 3 are provided with a plurality of first connecting holes 4; a second connector 6 and a third connector 7 for connecting the elevator shaft columns 1 and the crossbars 5; the second connector 6 includes an inner connector, the inner connector being an L-shaped plate, the surface of the inner connector being provided with a plurality of second connecting holes 8, and a nut 12 being welded to the inner end of the second connecting hole 8.

[0024] Furthermore, the first connecting plate 2 is an L-shaped plate, with bent portions 9 at both ends, and multiple first connecting holes 4 are provided in the bent portions 9. The second connecting plate 3 is an L-shaped plate, and nuts 12 are welded to the inner ends of the first connecting holes 4. The third connecting member 7 is a U-shaped plate, with multiple mating holes 13 on its bottom plate and side plates. The connection structure created by this invention enables welding-free modular elevator shaft assembly, reducing the on-site construction period of the shaft to ≤3 days. The component transportation volume is reduced by 80% compared to traditional solutions (single component size ≤6m×1.5m×0.6m). It delivers components in loose parts and assembles them on-site, reducing the overall construction cost by 55% (labor costs are reduced to below 30%). It improves the efficiency of outdoor operations, avoids quality instability caused by welding, avoids shaft verticality deviation caused by thermal deformation, reduces labor costs, occupies less factory space, and facilitates transportation. Example

[0025] like Figure 1-6As shown, this embodiment discloses a weld-free elevator shaft connection structure, which includes: a first connector for connecting adjacent vertical columns 1 of the elevator shaft; the first connector includes a first connecting plate 2 and a second connecting plate 3, and the surfaces of the first connecting plate 2 and the second connecting plate 3 are provided with a plurality of first connecting holes 4; a second connector 6 and a third connector 7 for connecting the elevator shaft columns 1 and the crossbars 5; the second connector 6 includes an inner connector, the inner connector being an L-shaped plate, the surface of the inner connector being provided with a plurality of second connecting holes 8, and a nut 12 being welded to the inner end of the second connecting hole 8.

[0026] For better performance, the first connecting plate 2 is an L-shaped plate with bent portions 9 at both ends, and multiple first connecting holes 4 are provided in the bent portions 9. The second connecting plate 3 is an L-shaped plate, and nuts 12 are welded to the inner ends of the first connecting holes 4. The third connecting member 7 is a U-shaped plate, and multiple mating holes 13 are provided on the bottom plate and side plates of the third connecting member 7.

[0027] For better performance, the second connector 6 also includes an external auxiliary component 10, which is a W-shaped plate with multiple third connecting holes 11 on its surface. The side walls of the column 1 and the crossbar 5 have several mating holes.

[0028] The connection structure created in this invention enables weld-free modular elevator shaft assembly, reducing on-site construction time to ≤3 days. The volume of transported components is reduced by 80% compared to traditional methods (single component size ≤6m×1.5m×0.6m). Components are shipped in loose parts and assembled on-site, resulting in a 55% reduction in overall construction costs (labor costs reduced to below 30%). This improves the efficiency of outdoor operations, avoids quality instability caused by welding, prevents shaft verticality deviations due to thermal deformation, reduces labor costs, requires less factory space, and facilitates transportation.

[0029] Construction efficiency: On-site assembly speed is 30 meters / day (traditional process ≤ 5 meters / day); number of workers reduced to 3 (traditionally 8-10 people are required).

[0030] Quality indicators: Node connection strength ≥ 90% of welded joint, no welding stress, and overall shaft stiffness increased by 15% (finite element analysis results).

[0031] Economic data: No welding personnel or welding site equipment required, manufacturing costs reduced by 50%. Transportation costs reduced by 62%, and transportation volume reduced by 20% compared to the old solution. Overall construction cost reduced from ¥200,000 / unit to ¥80,000 / unit.

[0032] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A weldless elevator shaft connection structure, characterized by, include: A first connector for connecting adjacent vertical columns of an elevator shaft; the first connector includes a first connecting plate and a second connecting plate, and both the first connecting plate and the second connecting plate have multiple first connecting holes on their surfaces; A second and a third connector are used to connect the elevator shaft columns and crossbars; the second connector includes an inner connector, which is an L-shaped plate with multiple second connection holes on its surface.

2. The weldless elevator shaft connection structure according to claim 1, characterized in that, The first connecting plate is an L-shaped plate, and both ends of the first connecting plate are provided with bent portions, and a plurality of the first connecting holes are provided in the bent portions.

3. The weldless elevator shaft connection structure according to claim 2, characterized in that The second connecting plate is an L-shaped plate.

4. The weldless elevator shaft connection structure according to claim 1, characterized in that, The first connecting hole has internal threads.

5. The weldless elevator shaft connection structure according to claim 1, characterized in that, A nut is welded to the inner end of the first connecting hole.

6. The weldless elevator shaft connection structure according to claim 1, characterized in that, The second connector also includes an external auxiliary component, which is a W-shaped plate with multiple third connection holes on its surface.

7. The weldless elevator shaft connection structure according to claim 1, characterized by The second connecting hole has internal threads.

8. The weldless elevator shaft connection structure according to claim 1, characterized in that, A nut is welded to the inner end of the second connecting hole.

9. The weldless elevator shaft connection structure according to claim 1, characterized in that, The third connector is a U-shaped plate, and the bottom plate and side plates of the third connector are provided with multiple mating holes.

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