Elevator shaft with frame-type steel structure

Abstract

The present invention discloses an elevator shaft with a frame-type steel structure, comprising four columns, a crossbeam connecting two adjacent columns, and a diagonal brace connecting two adjacent columns. In the present invention, the entire elevator shaft is constructed of angle steel, which is a common structural material currently on the market. Its cost is lower than that of square tube materials, and its weight is lighter, which can effectively reduce the cost of installing the entire elevator. Since the angle steel material does not have the problem of internal hollowness, only the outer surface of the angle steel material needs to be processed, which is simple and convenient to process, with low processing cost, and no rust from the inside out. In addition, due to the use of a specific layout method, the diagonal brace and the crossbeam can be close to each other on the column without interfering with each other, and the elevator shaft can effectively avoid the generation of bending moment.

Description

Technical Field

[0001] The present invention relates to the technical field of elevators, and in particular to an elevator shaft having a frame-type steel structure installed in the field of elevators. Background Art

[0002] Some older residential communities often lack elevators, causing significant inconvenience for residents, especially the elderly. To improve living conditions, some communities are retrofitting elevators into the side of older buildings. Existing elevators typically consist of two main components: the elevator shaft and the elevator car. Due to the structural advantages of square tubes, such as stability, rigidity, and load-bearing strength, existing elevator shafts are typically constructed using rectangular square tubes. Since the shaft structure for these elevators is typically located outside the building, exposure to natural factors like sun and rain will inevitably affect the lifespan of the elevators. However, due to the hollow interior of square tubes, their internal surfaces are difficult to treat with corrosion and fireproofing methods like painting. Therefore, the internal surface anti-corrosion and fireproofing processes are complex, and improper treatment can easily lead to rust from the inside out. Furthermore, cost is a crucial consideration when retrofitting elevators into older communities. Many communities experience delays in installing elevators due to cost-sharing issues, and the existing use of square tubes also presents the disadvantage of high costs. In addition, during the outdoor installation of the additional ladder, the construction period needs to be shortened as much as possible to minimize the impact on residents in the building.

[0003] In addition, square tubes with square cross-sections will occupy a large volume when stacked, so more vehicles and vehicles with larger cargo capacities are needed to complete the transportation of square tubes. The existing square tube structure elevator shaft has a large amount of on-site work. If a large square tube structure is used, it is necessary to reserve a large steel structure hoisting construction area. However, the existing old residential areas are often narrow and it is difficult to bring in large steel structure hoisting equipment, which has a great impact on on-site residents. On-site operations not only increase installation costs but also make it difficult to control the installation quality. The installation level requirements for the installation workers are also very high, resulting in low construction efficiency, which in turn leads to a longer construction period and seriously affects the lives of on-site residents. In addition, the use of traditional square tube steel structures requires on-site welding operations, but there are major safety hazards in implementing on-site welding operations in residential areas, and the noise such as sound and light has a great impact on surrounding residents.

[0004] Document CN20784480U discloses a villa elevator frame consisting of angle steel columns and steel plate support rails. This elevator frame suffers from poor hoistway structural stability, significantly insufficient bending resistance, and is prone to deformation. In extreme conditions such as typhoons and earthquakes, this type of elevator frame presents the risk of deformation or even collapse.

[0005] The field of installing elevators requires a shaft structure with good safety, low cost, convenient construction and better space utilization. Summary of the Invention

[0006] One of the purposes of the present invention is to provide a frame-type steel structure elevator shaft that can improve the structural strength of the elevator frame, which can effectively solve the above-mentioned problems.

[0007] The objective of the present invention is achieved through the following technical solution: an elevator shaft has a first side surface and a plurality of second side surfaces for arranging elevator doors. The elevator shaft includes a plurality of columns, a plurality of crossbeams, and diagonal braces. The columns are made of angle steel and their corners are arranged toward the circumferential outside of the elevator shaft, constituting the corners of the elevator shaft. The crossbeams are made of angle steel and arranged horizontally, with both ends detachably fixed to adjacent columns, and the crossbeams on adjacent second side surfaces are arranged at the same vertical height. The diagonal braces are arranged between two vertically adjacent crossbeams. The diagonal braces are made of angle steel and arranged obliquely along the vertical direction, with both ends detachably fixed to adjacent columns.

[0008] Among them, on the second side surface, the close ends of the two vertically adjacent diagonal braces are respectively adjacent to one end of the beam located between the two diagonal braces and fixed to the column; on the adjacent second side surface, one end of the two transversely adjacent diagonal braces are adjacent to and fixed to the column.

[0009] In this invention, the entire elevator shaft is constructed from angle steel. Although angle steel is a common structural material on the market, its cost is lower than that of square tubes and its weight is lighter, effectively reducing the cost of installing an elevator. However, angle steel's torsional strength and stability are inferior to those of square tubes, so it is not currently used in elevator installations. Constructing the entire shaft structure from angle steel undoubtedly requires special structural and mechanical design.

[0010] According to the present invention, the four columns form the main structure of the entire elevator shaft. The columns are connected by crossbeams and reinforced by diagonal braces to ensure the stability of the entire structure. According to the above elevator shaft frame, the crossbeams and diagonal braces are fixed in close proximity to each other on the columns, thereby preventing the occurrence of undesirable bending and shear moments.

[0011] Furthermore, since angle steel doesn't have a hollow interior, only the outer surface needs to be treated, making it simple, convenient, and cost-effective. It also prevents corrosion from the inside out. Compared to square tubes, angle steel also boasts a smaller cross-sectional area. Using angle steel in elevator shafts provides a larger interior space for a given external volume.

[0012] Furthermore, according to the present invention, the connections between the columns, beams, and diagonal braces that comprise the elevator shaft are all removable. Once the components are transported to the site, workers can complete the shaft assembly by simply assembling scaffolding within the shaft, without the need for an external crane. Therefore, this elevator shaft is particularly suitable for older residential communities with narrow aisles where cranes are inaccessible.

[0013] Preferably, adjacent diagonal braces on the first side of the elevator shaft form a reciprocating, wavy structure in the vertical direction. The diagonal braces on the first and second sides thus form a wavy structure in both the vertical and horizontal directions. This prevents overturning forces from being generated on the columns between different sides of the elevator shaft.

[0014] Preferably, a plurality of diagonal braces are provided between adjacent beams located on the first side surface.

[0015] Preferably, a door column is further provided at at least one end of the first side surface corresponding to the width direction of the elevator door.

[0016] Preferably, the top and bottom ends of the columns are each provided with a flat plate formed with multiple through-holes. The four columns, along with the crossbeams and diagonal braces between them, form a hoistway unit. With the flat plates, the hoistway unit can be easily stacked and erected to the desired height of the elevator hoistway, adapting to different building heights.

[0017] Preferably, at the same vertical position, one side of the angle steel constituting the column is connected to a beam via a node plate, and the other side is directly connected to another beam.

[0018] Preferably, one end of the node plate is connected to the column by welding, and the other end is connected to the beam by bolts.

[0019] The added gusset plates allow adjacent diagonal braces to be vertically attached to the upper and lower ends of the corresponding crossbeams. In terms of mechanical design, the centroids of the two diagonal braces are designed to intersect the centroid of the horizontal crossbeam as much as possible.

[0020] Preferably, one end of the node plate is connected to the beam by welding, and the other end is connected to the column by bolts; or one end of the node plate abuts the edge of the column, and reinforcing plates capable of clamping the node plate are provided on both side surfaces of the column.

[0021] Preferably, the columns include outer columns proximal to the elevator door and inner columns distal to the elevator door, wherein the gusset plate is located on the outer columns and extends toward the inner columns, allowing the crossbeam mounted thereon to be offset from the elevator door. Because the gusset plate of this type allows the crossbeam fixed thereto to avoid the movement path of the elevator door, the transverse dimension of the elevator shaft of this type can be smaller while meeting the same elevator door size requirements.

[0022] Preferably, a buffer groove is provided on the end face of the node plate close to the outer column along the vertical length direction of the node plate, and a plurality of buffer columns made of elastic material are arranged in sequence from top to bottom in the buffer groove, and a plurality of buffer blocks are separated and provided at one end of the buffer column close to the outer column, and the buffer blocks are against the end face of the outer column.

[0023] Preferably, the angle θ between the diagonal bracing rod and the adjacent crossbeam is: 20°≤θ≤60°.

[0024] Preferably, the angle θ between the diagonal bracing rod and the adjacent crossbeam is: 30°≤θ≤55°.

[0025] Preferably, at least one end of the diagonal support rod is provided with an elongated hole-shaped adjustment slot in the same extending direction as the diagonal support rod.

[0026] Preferably, an adjustment block assembly that can be slidably adjusted along the axial direction of the adjustment groove is provided in the adjustment groove, and the adjustment block assembly includes a first adjustment block and a second adjustment block, and slidable movable blocks are provided on both sides of the first adjustment block, one end of the movable block is facing the side wall of the adjustment groove, and the other end is provided with a first guide inclined surface; a second guide inclined surface parallel to the first guide inclined surface is provided on the second adjustment block, and the first guide inclined surface is in contact with the second guide inclined surface; a first bolt hole is provided on the first adjustment block, and a second bolt hole corresponding to the first bolt hole is provided on the second adjustment block.

[0027] Preferably, the diagonal bracing rods and the cross beams are connected to the columns respectively by bolts.

[0028] The beneficial effects of the present invention are as follows: in the present invention, the entire elevator shaft is constructed of angle steel, which is a common structural material on the market. Its cost is lower than that of square tube material and its weight is lighter, which can effectively reduce the cost of installing the entire elevator; since the angle steel material does not have the problem of internal hollowness, it is only necessary to process the outer surface of the angle steel material, which is simple and convenient to process, with low processing cost, and there is no problem of rusting from the inside to the outside; the shaft columns adopt angle steel structure, so that the internal space of the shaft can be maximized; and through the structure and mechanical design of the present invention, the elevator shaft is not only structurally stable and safe, but also does not require the construction of external scaffolding during construction. The on-site construction workload is very small, the construction requirements are not high, and the operation is convenient, which greatly reduces the cost of installing the elevator. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] To better understand the above and other objects, features, advantages, and functions of the present invention, reference may be made to the preferred embodiments shown in the accompanying drawings. Like reference numerals in the accompanying drawings refer to like components. Those skilled in the art should understand that the accompanying drawings are intended to illustrate preferred embodiments of the present invention by way of illustration and are not intended to limit the scope of the present invention. The components in the drawings are not drawn to scale.

[0030] Figure 1 It is a structural schematic diagram of the elevator shaft of the present invention from a first side perspective.

[0031] Figure 2 This is a structural schematic diagram of the elevator shaft of the present invention from a second side perspective.

[0032] Figure 3 for Figure 2 An enlarged view of part A.

[0033] Figure 4 for Figure 2 An enlarged view of a part A, where Figure 4 by Figure 3 The opposite perspective shows detail A.

[0034] Figure 5 Schematic diagram of a cross section of an elevator shaft according to a preferred embodiment.

[0035] Figure 6 Schematic cross-sectional view of an elevator shaft according to another preferred embodiment.

[0036] Figure 7 Schematic diagram of the structure of the diagonal brace.

[0037] Figure 8 for Figure 7 An enlarged view of part C.

[0038] Figure 9 for Figure 7 Schematic diagram of the cross section in the DD direction.

[0039] Figure 10 for Figure 9 An enlarged view of the local E.

[0040] Figure 11 for Figure 6 An enlarged view of part B.

[0041] Figure 12 2 is a schematic diagram of the structure of the buffer block when the force is dispersed in the present invention.

[0042] Figure 13 yes Figure 1 、 2 A top view of the column is shown.

[0043] Description of reference numerals:

[0044] 1-column, 2-crossbeam, 3-diagonal brace, 4-corridor, 5-building body, 6-elevator foundation pit, 7-connecting bolt, 8-adjustment slot, 9-adjustment block assembly, 11-embedded tooth, 12-first adjustment block, 13-second adjustment block, 14-first bolt hole, 15-second bolt hole, 16-moving block, 17-first guide slope, 18-second guide slope, 19-embedded layer, 20-node plate, 21-elevator door, 22-inner reinforcement plate, 23-outer reinforcement plate, 24-buffer slot, 25-buffer column, 26-buffer block, 27-flat plate, 1A-inner column, 1B-outer column, S1-first side, S2-second side. DETAILED DESCRIPTION

[0045] Next, the inventive concept of the present invention will be described in detail with reference to the accompanying drawings. What is described here is merely a preferred embodiment of the present invention, and those skilled in the art may conceive of other ways of implementing the present invention on the basis of the preferred embodiment, and the other ways also fall within the scope of the present invention. In the following specific description, directional terms such as "upper", "lower", "inner", "outer", "longitudinal", "horizontal", etc. are used with reference to the directions described in the accompanying drawings. The components of the embodiments of the present invention can be placed in a variety of different directions, and the directional terms are for illustrative purposes only and are not restrictive.

[0046] Figure 1 A front view (first side S1) of a frame-type steel structure elevator shaft according to the present invention is shown, which shows the side of the space for installing the elevator car door; Figure 2 FIG. 2 shows a side view of the elevator shaft (second side S2). Figure 1 、 2As shown, the elevator hoistway has a first side surface S1 for arranging elevator doors 21 and three second side surfaces S2. The elevator hoistway includes four columns 1, with crossbeams 2 connecting between adjacent columns 1, and diagonal braces 3 connecting between adjacent columns 1. The corners of the columns 1 are arranged toward the circumferential outside of the elevator hoistway. The four columns 1 form the four corners of the elevator hoistway, which has a rectangular cross-section.

[0047] It should be understood that configuring the elevator shaft to have a rectangular cross-section and setting the number of columns 1 to four is merely a conventional configuration. Depending on the location of the elevator, the number of columns forming the elevator shaft corners can alternatively be set to three, five, or any other number. The cross-section of the elevator shaft can correspondingly be a polygonal shape such as a triangle or pentagon, or a shape approximately circular. The following description and accompanying drawings illustrate an elevator shaft having a rectangular cross-section as an example.

[0048] The elevator shaft is fixed on the elevator foundation pit 6 below it. The elevator shaft is connected to the building body 5 through a corridor 4.

[0049] To improve the elevator shaft's wind and earthquake resistance, the columns 1, beams 2, and diagonal braces 3 that comprise the shaft's frame structure are all constructed from L-shaped, slatted steel angles. These can be constructed with either equal or unequal angles, depending on the load requirements of the elevator car.

[0050] The columns 1, crossbeams 2, and diagonal braces 3 are detachably connected via bolts and other means. These components are cut, drilled, and painted at the factory before being stacked and transported to the installation site for subsequent assembly. Because each component is constructed of slatted angle steel, the columns 1, crossbeams 2, and diagonal braces 3 can be stacked and loaded onto trucks in an interlocking manner, allowing the elevator shaft installation materials to be transported with fewer vehicles. Furthermore, workers do not need to perform secondary welding or cutting on the columns 1, crossbeams 2, and diagonal braces 3 at the installation site, eliminating the need for painting and speeding up the elevator installation process.

[0051] In order to prevent the crossbeams 2 and diagonal braces 3 installed on the columns 1 from generating bending moments on the columns 1 and thus affecting the overall structural strength of the elevator shaft, the crossbeams 2 and diagonal braces 3 of the present invention are installed on the columns 1 in the following manner. Specifically, the crossbeams 2 on the adjacent second side surfaces S2 are arranged at the same vertical height (horizontal height). The diagonal braces 3 are arranged between two vertically adjacent crossbeams 2 and are arranged vertically tilted. On the second side surface S2 of the elevator shaft, the mutually adjacent ends of the two vertically adjacent diagonal braces 3 are respectively adjacent to one end of the crossbeam 2 located between the two diagonal braces 3 and fixed to the column 1; on the adjacent second side surface S2, one end of the two horizontally adjacent diagonal braces 3 is adjacent to and fixed to the column 1. Based on the above, the diagonal braces 3 show a wavy structure in the horizontal and vertical heights of the elevator shaft. One end of the two vertically adjacent diagonal braces 3 is fixed so as to be "adjacent to the crossbeam 2 located between them." Preferably, when workers install the elevator shaft frame according to the pre-set bolt holes of the columns 1, crossbeams 2, and diagonal braces 3, the centroids of the two diagonal braces 3 intersect at a first intersection. This first intersection is adjacent to the end of the crossbeam 2 near the diagonal braces 3, and the first intersection coincides with or is slightly distant from the centroid of the crossbeam 2. Therefore, the diagonal braces 3 do not generate a bending moment on the columns 1 that would significantly affect their strength.

[0052] Similar to the arrangement of the diagonal brace 3 on the second side S2, see Figure 1 In the vertical direction of the first side surface S1 where the elevator door 21 is provided, the diagonal bracing rods 3 are also arranged in the form of a wave-shaped structure. Figure 1-Figure 2 Preferably, the ends of the diagonal braces 3 on the first side S1 facing the second side S2 are adjacent to the ends of the corresponding diagonal braces 3 on the second side S2. In this case, the diagonal braces 3 do not generate significant bending moments on the columns 1 in either the horizontal or vertical directions of the elevator shaft, and the elevator shaft frame composed of angle steel can meet wind and earthquake resistance requirements.

[0053] See also Figure 1 , the first side surface S1 of the elevator shaft can be provided with door columns 1' made of angle steel at both ends in the width direction corresponding to the elevator door 21. Of course, if it is a side-opening door elevator, only one door column can be provided. Figure 1 In this example, at least four parallel columns 1 and door columns 1' are formed on the first side S1. The diagonal braces 3, crossbeams 2, and columns 1 on both sides of the elevator door 21 on the first side S1 can be symmetrically arranged. The additional door columns 1' and the existing columns 1 at both ends of the first side S1 can provide support for the diagonal braces 3 on the first side S1.

[0054] exist Figure 1 、 2In some of the illustrated embodiments, the number of diagonal braces 3 on the first side surface S1 is greater than the number of diagonal braces 3 on the second side surface S2. For example, a second side surface segment A2 consisting of two diagonal braces 3 is formed on the second side surface S2. The first side surface S1 has first side segments A1 and A1' located at the same vertical height as the second side segment A2. On some corresponding first and second side segments A1 and A2, the number of diagonal braces 3 in the first side segment A1 is four times the number of diagonal braces 3 in the second side segment A2 (eight diagonal braces in the first side segment A1 and two diagonal braces in the corresponding second side segment A2). On other corresponding first and second side segments A1' and A2, the number of diagonal braces 3 in the first side segment A1' is the same as the number of diagonal braces 3 in the corresponding second side segment A2.

[0055] The angle θ between the diagonal bracing rods 3 and the adjacent crossbeams 2 on the first side surface S1 and the second side surface S2 is 20-60 degrees, preferably 30-55 degrees.

[0056] See also Figure 3 、 4 , which shows the elevator shaft from the outside and inside perspectives respectively Figure 2 An enlarged view of area A. At the same vertical position of the angle steel constituting the column 1, one side is directly connected to the two diagonal braces 3 and connected to the beam 2 through the gusset plate 20; the other side is directly connected to another beam 2 ( Figure 4 The flat-plate gusset plate 20 eliminates interference between beams 2 at the same vertical position, as well as interference between two diagonal braces 3 adjacent to a beam 2. This allows the beams 2 and one end of the diagonal braces 3 to be arranged more closely together at the same vertical position on the column 1, further reducing the bending moment acting on the column 1. In this case, installing only a single diagonal brace 3 between two adjacent beams 2 on the same side of the elevator shaft can meet earthquake and wind resistance requirements.

[0057] See also Figure 4 and combined Figure 3 In some embodiments, one end of the gusset plate 20 is welded to one side of the column 1, and the other end of the gusset plate 20 is connected to the beam 2 via the connecting bolts 7. In other embodiments, one end of the gusset plate 20 may alternatively be welded to one end of the beam 2, and the other end may be connected to the column 1 via the connecting bolts 7.

[0058] See also Figure 5 、 11 In a preferred embodiment, one end of the gusset plate 20 abuts against the edge of the column 1. After the gusset plate 20 and the edge of the column 1 are butted together, the space F formed between the curved edge of the column 1 and the gusset plate 20 is just enough to accommodate the weld metal.

[0059] See also Figure 6 In a more preferred embodiment, reinforcing plates 22 and 23 capable of clamping the node plate 20 are provided on both side surfaces of the column 1. The reinforcing plates 22 and 23 can be fixed to the column 1 by welding. The provided reinforcing plates 22 and 23 can provide favorable support for the node plate 20 and prevent it from falling off the column 1. The length of the reinforcing plate 22 (inner reinforcing plate) located inside the elevator shaft is advantageously set to be shorter than the length of the reinforcing plate 23 (outer reinforcing plate) located outside the elevator shaft. The shorter inner reinforcing plate is beneficial for reducing the space it occupies inside the elevator. The longer outer reinforcing plate can greatly improve the firmness of the connection between the node plate 20 and the column 1.

[0060] See also Figure 4 In some preferred embodiments, after the vertically adjacent diagonal braces 3 are installed on the uprights 1, they are adjacent to or even fit the crossbeam 2 located between them. The diagonal braces 3 are not cut on the side that fits the crossbeam 2, or only a small portion is cut. For example, Figure 4 In this embodiment, only the diagonal brace 3 located above the crossbeam 2 has a corner cut. This cutting can be performed in advance at the factory. The length d of the edge formed by the cut corner is no greater than 25% of the original width of the column, and preferably no greater than 20% of the frame. The advantage of this arrangement is that the structural strength of the diagonal brace 3 at the column 1 is not compromised, and the diagonal brace 3 is not at risk of bending at this location.

[0061] exist Figure 7-10 In some preferred embodiments shown, adjustment slots 8 are provided at both ends of the diagonal brace 3, through which connecting bolts 7 pass. These slots 8 extend in the same direction as the diagonal brace 3 and are slotted. If there are slight deviations in the installation positions of the various components, the elevator hoistway can be assembled by adjusting the positions of the connecting bolts 7 in the slots 8.

[0062] Preferably, see Figure 9-10 , an adjustment block assembly 9 that can slide and adjust along the axial direction of the adjustment slot 8 (i.e., the length direction of the adjustment slot 8) can be provided in the adjustment slot 8. The adjustment block assembly 9 includes a first adjustment block 12, a second adjustment block 13, and a moving block 16, etc. Among them, the first adjustment block 12 is provided with sliding grooves on both sides corresponding to the width direction of the adjustment slot 8. The moving block 16 is slidably fixed in the sliding groove of the first adjustment block 12. One side of the moving block 16 is facing the side wall of the adjustment slot 8, and the other opposite side is provided with a first guide bevel 17. A second guide bevel 18 parallel to the first guide bevel 17 is provided on the second adjustment block 13. The first guide bevel 17 is in contact with the second guide bevel 18.

[0063] First adjustment block 12 is provided with a first bolt hole 14, and second adjustment block 13 is provided with a second bolt hole 15 corresponding to first bolt hole 14. Sawtooth-shaped embedded teeth 11 are provided on the sidewalls of adjustment slot 8. An embedded layer 19, such as brass, is provided on one end of movable block 16, near the sidewalls of adjustment slot 8.

[0064] According to the above-described adjustment block assembly 9, both ends of the diagonal brace 3 are connected to the column 1 through the adjustment block assembly 9 and by connecting bolts 7. The column 1 is provided with a third bolt hole corresponding to the first bolt hole 14. The connecting bolt 7 simultaneously passes through the first bolt hole 14, the second bolt hole 15, and the third bolt hole to connect the diagonal brace 3 to the column 1. If the first and second bolt holes 14, 15 cannot be aligned with the third bolt hole, the adjustment block assembly 9 can be moved to the appropriate position by sliding it, so that the first and second bolt holes 14, 15 are aligned with the third bolt hole, making it easier to install the connecting bolt 7. When the connecting bolt 7 is tightened, it compresses the first and second adjustment blocks 12, 13. During this compression process, the first and second adjustment blocks 12, 13 move toward each other. During this movement, the first and second guide bevels 17, 18 act to cause the movable block 16 to move toward the sidewalls of the adjustment slot 8, thereby making it close to the sidewalls of the adjustment slot 8. The adjustment block assembly 9 can thus be fixed in a certain position within the adjustment slot 8, preventing the adjustment block assembly 9 from moving within the adjustment slot 8 and affecting the stability of the entire elevator shaft. When the movable block 16 is in close contact with the side wall of the adjustment slot 8, the embedded teeth 11 can be embedded in the embedded layer 19, thereby enhancing the fixing effect of the adjustment block assembly 9.

[0065] For the convenience of description, the column 1 close to the elevator door 21 is referred to as the "third bolt hole", and the column 1 away from the elevator door 21 is referred to as the "inner column 1A". Figure 5 In some preferred embodiments shown, gusset plates 20 are fixed to outer columns 1B and extend toward inner columns 1A. The length of gusset plates 20 ensures that the crossbeams 2 mounted thereon can be offset from the elevator doors 21. As a result, the ends of the crossbeams 2 on the left and right sides of the elevator shaft effectively avoid the space required by the elevator doors 21 when they are opened, thereby increasing the net dimensions of the left and right sides of the elevator shaft. This facilitates the expansion and enlargement of the door opening size of the elevator doors 21, thereby improving the space utilization of the elevator shaft.

[0066] See also Figure 11-12In some embodiments, a buffer groove 24 is provided on the end surface of the node plate 20 close to the outer column 1B along the vertical length direction of the node plate 20. A plurality of buffer columns 25 made of elastic material are arranged in sequence from top to bottom in the buffer groove 24. A plurality of buffer blocks 26 are separated and provided at one end of the buffer column 25 close to the outer column 1B. The buffer blocks 26 are against the end surface of the outer column 1B. The number of buffer blocks 26 is preferably set to 4-6, which can better play the role of dispersing vibration energy. During installation, the staff first moves the node plate 20 closer to the outer column 1B, so that the plurality of buffer blocks 26 on the buffer column 25 are first against the outer column 1B. The plurality of buffer blocks 26 are subjected to force and dispersed in different directions and tightly adhere to the end surface of the outer column 1B. Then, the inner reinforcement plate 22 and the outer reinforcement plate 23 are welded.

[0067] Based on the above, the design of the buffer column 25 and the buffer block 26 can effectively disperse and buffer the vibration energy transmitted from the outer column 1B, thereby improving the stability of the connection between the node plate 20 and the outer column 1B, and also reducing the sound emitted when the outer column 1B vibrates.

[0068] The buffer column 25 can be optionally made of a material with good elasticity and wear resistance, such as rubber material. This type of buffer column 25 can have good buffering force, and the buffer column 25 and the buffer block 26 can have a longer service life.

[0069] See also Figure 13 , which shows a top view of the column 1. As shown in the figure, the top and bottom ends of the column 1 are respectively provided with flat plates formed with multiple through holes. The flat plates can be fixed to the corresponding positions of the column 1 by welding. Four columns 1 and four diagonal braces 3 and four crossbeams 2 located between the four columns form a shaft unit. When laying the columns 1, the staff can stand on the scaffolding erected inside the elevator shaft, align the flat plates of the upper columns 1 with the flat plates of the lower columns 1, and then connect the two through connecting bolts 7, so that multiple shaft units can be stacked up and down to adapt to buildings of different heights.

[0070] Optionally, reinforcing ribs fixed to the column 1 may be provided on the lower surface of the flat plate at the top and the upper surface at the bottom, respectively.

[0071] In the present invention, the entire elevator shaft is constructed of angle steel, which is a common structural material currently available on the market. Its cost of use is lower than that of square tube materials, and it is lighter in weight, which can effectively reduce the cost of installing the entire elevator. The four columns 1 are the main structure of the entire elevator shaft. The columns 1 are connected by crossbeams 2 and reinforced by diagonal braces 3 to ensure the stability of the entire structure. Since the square tube material is hollow inside, when performing fireproofing and anti-corrosion treatment, the inner surface of the square tube material must also be treated with fireproofing and anti-corrosion treatment. This treatment is difficult and costly. If not treated properly, it is easy to cause rust from the inside out. However, since angle steel materials do not have the problem of internal hollowness, only the outer surface of the angle steel material needs to be treated. It is simple and convenient to treat, with low processing cost, and there is no problem of rust from the inside out. In addition, compared with square tube materials, angle steel has a smaller cross-sectional area. Under the same external volume, using angle steel materials to manufacture elevator shafts can provide a larger internal space.

[0072] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An elevator hoistway of a frame-type steel structure, having a first side surface and a plurality of second sides for arranging elevator doors, the elevator hoistway comprising: a plurality of columns, each of which is made of angle steel and has corners disposed toward the circumferential outside of the elevator shaft, constituting each corner of the elevator shaft; a plurality of cross beams, each of which is formed of angle steel and arranged horizontally, with both ends detachably fixed to adjacent columns, and the cross beams on adjacent second side surfaces being arranged at the same vertical height; and The diagonal brace is arranged between two vertically adjacent horizontal beams. The diagonal brace is made of angle steel and arranged vertically tilted. Both ends of the diagonal brace are detachably fixed to the adjacent columns. Wherein, on the second side surface, the mutually close ends of two vertically adjacent diagonal braces are respectively adjacent to one end of the crossbeam between the two diagonal braces and fixed to the column; on the adjacent second side surface, one end of two transversely adjacent diagonal braces are adjacent to and fixed to the column, wherein at least one end of the diagonal brace is provided with an elongated hole-shaped adjustment slot in the same extension direction as the diagonal brace, an adjustment block assembly is provided in the adjustment slot that can slide and adjust along the axial direction of the adjustment slot, the adjustment block assembly includes a first adjustment block and a second adjustment block, slidable moving blocks are provided on both sides of the first adjustment block, one end of the moving block faces the side wall of the adjustment slot, and the other end is provided with a first guide inclined surface; a second guide inclined surface is provided on the second adjustment block and is parallel to the first guide inclined surface, and the first guide inclined surface contacts the second guide inclined surface; a first bolt hole is provided on the first adjustment block, and a second bolt hole corresponding to the first bolt hole is provided on the second adjustment block, Wherein, in the vertical direction of the first side surface of the elevator shaft, the adjacent diagonal braces form a reciprocating wave-shaped structure, Among them, at the same vertical position, one side of the angle steel constituting the column is connected to a beam through a node plate, and the other side is directly connected to another beam.

2. The elevator shaft according to claim 1, characterized in that: A plurality of diagonal bracing rods are arranged between adjacent cross beams on the first side surface.

3. The elevator shaft according to claim 2, characterized in that: A door column is further provided at at least one end of the first side surface corresponding to the width direction of the elevator door, and the door column is made of angle steel.

4. The elevator shaft according to claim 1, characterized in that: The top and bottom ends of the columns are respectively provided with flat plates formed with a plurality of through holes.

5. The elevator shaft according to claim 1, characterized in that: One end of the gusset plate is connected to the column by welding, and the other end is connected to the beam by bolts; or one end of the gusset plate is connected to the beam by welding, and the other end is connected to the column by bolts.

6. The elevator shaft according to claim 1, characterized in that: One end of the gusset plate abuts against the edge of the column, and both side surfaces of the column are provided with reinforcing plates capable of clamping the gusset plate.

7. The elevator shaft according to claim 1, characterized in that: The columns include outer columns close to the elevator door and inner columns away from the elevator door, wherein the gusset plate is located on the outer columns and extends toward the inner columns, so that the beam installed thereon can be offset from the elevator door.

8. The elevator shaft according to claim 1, characterized in that: A buffer groove is provided on the end surface of the node plate close to the outer column along the vertical length direction of the node plate, and a plurality of buffer columns made of elastic material are arranged in sequence from top to bottom in the buffer groove. A plurality of buffer blocks are separated and provided at one end of the buffer column close to the outer column, and the buffer blocks are against the end surface of the outer column.

9. The elevator shaft according to claim 1, characterized in that: The included angle θ between the diagonal bracing rod and the adjacent cross beam is: 20°≤θ≤60°.

10. The elevator shaft according to claim 9, characterized in that: The included angle θ between the diagonal bracing rod and the adjacent cross beam is: 30°≤θ≤55°.

11. The elevator shaft according to any one of claims 1 to 10, characterized in that: The diagonal bracing rods and the cross beams are connected to the columns via bolts respectively.

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