A light-weight and large-space prefabricated concrete elevator shaft

Abstract

The utility model discloses a concrete prefabricated assembled elevator shaft with light weight and large space, which comprises a plurality of concrete prefabricated shafts which are stacked and connected together, the bottom and the top of the concrete prefabricated shafts are both open, the concrete prefabricated shaft at the bottom is stacked and connected to a foundation bottom shaft with an opening at the top, the concrete prefabricated shaft at the top is stacked and connected to a machine room, the concrete prefabricated shaft comprises a frame beam and surrounding walls, a plurality of concrete prefabricated shafts are respectively provided with doors on the same side, and the columns of the frame beam are L-shaped in a transverse section; the elevator shaft is much lighter than a traditional concrete prefabricated shaft frame beam column which is rectangular in a transverse section by setting the frame beam column of each concrete prefabricated shaft to a structure which is L-shaped in a transverse section, so that the hoisting is more convenient, and the concrete prefabricated shaft frame beam column which is L-shaped in a transverse section can increase the internal use space.

Description

Technical Field

[0001] The utility model relates to a concrete prefabricated assembled elevator shaft, in particular to a concrete prefabricated assembled elevator shaft which is light in weight and has a large space. Background Art

[0002] With the increase of the aging population in cities and towns and the improvement of people's living standards, more and more old multi-story residential buildings are being equipped with elevators. There are two main structural types of traditional pipe shafts for installing elevators: (1) steel structure shafts and (2) cast-in-place reinforced concrete frame structures. Among them, the steel structure can be prefabricated in the factory and assembled on site, which is fast to install, but the thermal insulation performance is poor, and the later maintenance cost is high and the durability is poor; the cast-in-place concrete frame structure, although durable and thermal insulation is good, requires on-site civil engineering operations such as template construction, steel bar binding, concrete pouring, and concrete curing, and the construction speed is slow, which has a great impact on the lives of residents. In recent years, prefabricated concrete pipe shafts have emerged, which combine the advantages of steel structure shafts and cast-in-place reinforced concrete frame structures, that is, better durability and thermal insulation performance, lower later maintenance cost, faster installation speed, and less impact on the lives of residents, but the weight of each concrete prefabricated part is still large, and on-site installation requires large mechanical equipment and a large site, which is not suitable for some communities. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a light-weight and large-space prefabricated concrete elevator shaft to solve the technical problem that each prefabricated part of the existing prefabricated concrete pipe shaft is heavy and difficult to install.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A light-weight and large-space prefabricated concrete elevator shaft comprises a plurality of stacked and connected prefabricated concrete shafts, wherein the bottom and top of the prefabricated concrete shafts are open, the bottom prefabricated concrete shaft is stacked and connected to a foundation shaft with an opening at the top, and the top prefabricated concrete shaft is stacked and connected to a machine room, the prefabricated concrete shaft comprises a frame beam and surrounding walls, a plurality of prefabricated concrete shafts are respectively provided with doors on the same side, and the columns of the frame beam are L-shaped in a transverse section.

[0006] Furthermore, the machine room includes a precast concrete roof shaft with openings at the bottom and the top and a cover plate covering the opening at the top of the precast concrete roof shaft, the precast concrete roof shaft includes a frame beam and walls on all sides, the precast concrete roof shaft is provided with a door on the same side as the door of the precast concrete shaft, and the columns of the frame beam of the precast concrete roof shaft are L-shaped in the transverse section.

[0007] Furthermore, the prefabricated concrete roof shaft is formed by stacking and connecting at least two prefabricated units.

[0008] Furthermore, each prefabricated concrete shaft is formed by stacking and connecting at least two prefabricated units.

[0009] Furthermore, each prefabricated unit includes a frame beam and surrounding walls.

[0010] Furthermore, the upper ends of the vertical bars of the steel cage of each prefabricated unit are exposed to form connecting bars, and the lower ends are respectively connected to grouting sleeves with bottom openings that can accommodate the connecting bars. Each grouting sleeve is connected to a grouting pipe, and the other end of the grouting pipe is located on the inner wall of each prefabricated unit. A grouting groove is provided at each connecting bar on the top of each prefabricated unit, and two adjacent prefabricated units are connected by grouting that is poured into the grouting sleeve and the grouting groove by the grouting pipe. There are connecting bars on the top of the foundation bottom well, and grouting grooves are provided at each connecting bar on the top of the foundation bottom well. The foundation bottom well and adjacent prefabricated units are connected by grouting that is poured into the grouting sleeve and the grouting groove by the grouting pipe.

[0011] Furthermore, each prefabricated unit frame beam is provided with vertical reserved connection holes near both ends on each side of the bottom ring beam, and vertical reserved connection holes are provided on each side of the top ring beam near both ends. The reserved connection holes on the bottom ring beam correspond one to one with the reserved connection holes on the top ring beam, and the adjacent prefabricated units are connected by well connecting bolts passing through their relative reserved connection holes; the foundation bottom well is pre-embedded with connecting nuts in the reserved connection holes corresponding to the adjacent prefabricated units, and the foundation bottom well and the adjacent prefabricated units are connected by connecting screws passing through their relative reserved connection holes and connecting nuts; the cover plate is pre-embedded with connecting nuts in the reserved connection holes corresponding to the adjacent prefabricated units, and the cover plate and the adjacent prefabricated units are connected by connecting screws passing through their relative reserved connection holes and connecting nuts.

[0012] The beneficial effects of the utility model are:

[0013] The utility model discloses a light-weight and large-space prefabricated concrete elevator shaft. By arranging the frame beam columns of each prefabricated concrete shaft to be an L-shaped structure in the transverse section, the weight of the prefabricated concrete shaft frame beam columns is much smaller than that of the traditional prefabricated concrete shaft frame beam columns which are rectangular in the transverse section, so that hoisting is more convenient. In addition, the prefabricated concrete shaft frame beam columns which are L-shaped in the transverse section can increase the internal usable space.

[0014] The weight of the machine room is much smaller by setting the frame beam columns of the prefabricated concrete roof of the machine room to be an L-shaped structure in the transverse section.

[0015] The hoisting weight can be further greatly reduced by making the prefabricated concrete shaft and the prefabricated concrete top shaft consist of at least two prefabricated units stacked and connected.

[0016] The two adjacent prefabricated units and the foundation bottom well and the adjacent prefabricated units are connected by grouting sleeves, connecting bars and grouting bodies, and the connection is convenient and firm.

[0017] Two adjacent prefabricated units are also connected by connecting bolts, and the foundation bottom well and the adjacent prefabricated units as well as the cover plate and the adjacent prefabricated units are connected by screws and connecting nuts, so that the connection is more firm.

[0018] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings, in which:

[0020] Figure 1 It is the front view of the utility model.

[0021] Figure 2 for Figure 1 Three-dimensional diagram of the prefabricated unit.

[0022] Figure 3 for Figure 1 Another perspective of the prefabricated unit.

[0023] Figure 4 for Figure 1 Three-dimensional view of the prefabricated unit reinforcement cage.

[0024] Figure 5 for Figure 1 Schematic diagram of two adjacent prefabricated units being connected through grouting sleeves, connecting bars and grouting bodies.

[0025] Figure 6 for Figure 1 Schematic diagram of two adjacent prefabricated units being connected by connecting bolts.

[0026] Figure 7 for Figure 1 Schematic diagram of the connection between the middle foundation bottom well and the adjacent precast units through connecting screws and connecting nuts.

[0027] Figure 8 for Figure 1 Schematic diagram of the connection between the middle cover and the adjacent prefabricated units through connecting screws and connecting nuts.

[0028] In the figure: precast concrete shaft 1, frame beam 11, column 111, bottom ring beam 112, top ring beam 113, surrounding walls 12, precast unit 13, vertical reinforcement 131, connecting reinforcement 132, grouting sleeve 133, grouting pipe 134, grouting groove 135, foundation bottom shaft 2, raft 21, shaft body 22, machine room 3, precast concrete top shaft 31, cover plate 32, door 4, connecting hole 5, connecting bolt 6, connecting nut 7, connecting screw 8. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the preferred embodiments are only for illustrating the present invention, rather than for limiting the protection scope of the present invention.

[0030] Embodiment 1

[0031] like Figure 1-4 As shown, a light-weight and large-space prefabricated concrete elevator shaft comprises a plurality of prefabricated concrete shafts 1, each of which is open at the bottom and the top, and the plurality of prefabricated concrete shafts 1 are sequentially stacked and connected together from bottom to top, the bottom prefabricated concrete shaft 1 is stacked and connected to a top-open foundation shaft 2, the foundation shaft 2 comprises a prefabricated concrete integrally formed raft 21 and a shaft body 22 on the raft 21, the foundation shaft 2 is installed on a reinforced foundation, the top prefabricated concrete shaft 1 is stacked and connected to a machine room 3, the machine room 3 comprises a prefabricated concrete top shaft 31 which is open at the bottom and the top, the top opening of the prefabricated concrete top shaft 31 is covered by a prefabricated concrete cover plate 32, the prefabricated concrete shaft 1 and the prefabricated concrete top shaft 31 both comprise a frame beam 11 and surrounding walls 12, the columns 111 of the frame beam 11 are L-shaped in a transverse section, and the plurality of prefabricated concrete shafts 1 and the prefabricated concrete top shaft 31 are respectively provided with doors 4 on the same side.

[0032] The L-shaped concrete prefabricated shaft frame beam 11 column 111 in the transverse section is much lighter than the traditional rectangular concrete prefabricated shaft frame beam column in the transverse section. Smaller lifting equipment can be selected during installation, the required space is smaller, and the installation is convenient.

[0033] Embodiment 2

[0034] like Figure 1-4 As shown, the difference from the first embodiment is that each prefabricated concrete shaft 1 and prefabricated concrete top shaft 31 are formed by two prefabricated units 13 stacked and connected, and each prefabricated unit 13 includes a frame beam 11 and walls 12 on all sides, which can further reduce the lifting weight.

[0035] like Figure 5As shown, the upper ends of the vertical bars 131 of the steel cage of each prefabricated unit 13 are exposed to form connecting bars 132, and the lower ends are respectively connected to the grouting sleeves 133 with the bottom opening that can accommodate the connecting bars 132. Each grouting sleeve 133 is connected to the grouting pipe 134, and the other end of the grouting pipe 134 is located on the inner wall of each prefabricated unit 13. A grouting groove 135 with a height of 15 mm is provided at each connecting bar 131 at the top of each prefabricated unit 13. The adjacent two prefabricated units 13 are connected by the grouting body poured into the grouting sleeve 133 by the grouting pipe 134. The top of the foundation bottom well 2 is provided with connecting bars 132, and the top of the foundation bottom well 2 is provided with a grouting groove 135 with a height of 15 mm. The foundation bottom well 2 and the adjacent prefabricated units 13 are connected by the grouting body poured into the grouting sleeve 133 and the grouting groove 135 by the grouting pipe 134.

[0036] Two adjacent prefabricated units 13 are connected firmly by means of a grouting sleeve 133, a connecting rib 132 and a grouting body.

[0037] like Figure 6 As shown, each prefabricated unit frame beam 11 has a bottom ring beam 112 with vertical reserved connection holes 5 near both ends on each side, and a top ring beam 113 with vertical reserved connection holes 5 near both ends on each side. The reserved connection holes 5 on the bottom ring beam 112 correspond to the reserved connection holes 5 on the top ring beam 113 one by one, and two adjacent prefabricated units 13 are connected by well connection bolts 6 passing through the corresponding reserved connection holes 5; Figure 7 As shown, the foundation bottom well 2 is pre-embedded with connecting nuts 7 in the reserved connecting holes 5 corresponding to the adjacent prefabricated units 13, and the foundation bottom well 2 and the adjacent prefabricated units 13 are connected by connecting screws 8 passing through the corresponding reserved connecting holes 5 and connecting nuts 7; the cover plate 32 is pre-embedded with connecting nuts 7 in the reserved connecting holes 5 corresponding to the adjacent prefabricated units 13, and the cover plate 32 and the adjacent prefabricated units 13 are connected by connecting screws 8 passing through the corresponding reserved connecting holes 5 and connecting nuts 7.

[0038] The two adjacent prefabricated units 13 are further connected by shaft connection bolts to further enhance the firmness of the connection. The foundation bottom well 2 and the adjacent prefabricated units 13 and the cover plate 32 and the adjacent prefabricated units 13 are connected firmly by connecting screws and nuts.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the utility model.

Claims

1. A lightweight and spacious prefabricated concrete elevator shaft, comprising a plurality of prefabricated concrete shafts (1) stacked and connected together, wherein the prefabricated concrete shafts (1) are open at the bottom and the top, the prefabricated concrete shaft (1) at the bottom is stacked and connected to a foundation shaft (2) with an opening at the top, and a machine room (3) is stacked and connected to the prefabricated concrete shaft (1) at the top, the prefabricated concrete shaft (1) comprises a frame beam (11) and surrounding walls (12), and the plurality of prefabricated concrete shafts (1) are respectively provided with doors (4) on the same side, characterized in that: The upright column (111) of the frame beam (11) is L-shaped in the transverse cross section.

2. A lightweight and spacious prefabricated concrete elevator shaft according to claim 1, characterized in that: The machine room (3) comprises a precast concrete top shaft (31) with openings at the bottom and the top, and a cover plate (32) covering the top opening of the precast concrete top shaft (31). The precast concrete top shaft (31) comprises a frame beam (11) and surrounding walls (12). The precast concrete top shaft (31) is provided with a door (4) on the same side as the door (4) of the precast concrete shaft (1). The columns (111) of the frame beam (11) of the precast concrete top shaft (31) are L-shaped in a transverse cross section.

3. A lightweight and spacious prefabricated concrete elevator shaft according to claim 2, characterized in that: The prefabricated concrete roof well (31) is formed by at least two prefabricated units (13) being stacked and connected.

4. A lightweight and spacious prefabricated concrete elevator shaft according to claim 1, characterized in that: Each prefabricated concrete shaft (1) is formed by stacking and connecting at least two prefabricated units (13).

5. The lightweight and spacious prefabricated concrete elevator shaft according to claim 3, characterized in that: Each prefabricated unit (13) comprises a frame beam (11) and surrounding walls (12).

6. A lightweight and spacious prefabricated concrete elevator shaft according to claim 5, characterized in that: The upper ends of the vertical bars (131) of the steel cage of each prefabricated unit (13) are exposed to form connecting bars (132), and the lower ends are respectively connected to grouting sleeves (133) with bottom openings capable of accommodating the connecting bars (132). Each grouting sleeve (133) is connected to a grouting pipe (134), and the other end of the grouting pipe (134) is located on the inner wall of each prefabricated unit (13). A grouting groove (135) is provided at each connecting bar (132) at the top of each prefabricated unit (13). The prefabricated units (13) are connected by grouting that is poured into a grouting sleeve (133) and a grouting groove (135) through a grouting pipe (134); a connecting rib (132) is provided at the top of the foundation bottom well (2); and a grouting groove (135) is provided at each connecting rib (132) at the top of the foundation bottom well (2); the foundation bottom well (2) and adjacent prefabricated units (13) are connected by grouting that is poured into a grouting sleeve (133) and a grouting groove (135) through a grouting pipe (134).

7. A lightweight and spacious prefabricated concrete elevator shaft according to claim 6, characterized in that: A vertical reserved connection hole (5) is respectively provided near both ends of each side of the bottom ring beam (112) of the frame beam (11) of each prefabricated unit (13), and a vertical reserved connection hole (5) is respectively provided near both ends of each side of the top ring beam (113). The reserved connection holes (5) on the bottom ring beam (112) correspond to the reserved connection holes (5) on the top ring beam (113) one by one. Two adjacent prefabricated units (13) are connected by shaft connection bolts passing through the corresponding reserved connection holes (5); the base The foundation well (2) is pre-buried with a connection nut in a reserved connection hole (5) corresponding to the adjacent prefabricated unit (13); the foundation well (2) and the adjacent prefabricated unit (13) are connected by connecting screws passing through the corresponding reserved connection holes (5) and the connection nuts; the cover plate (32) is pre-buried with a connection nut in a reserved connection hole (5) corresponding to the adjacent prefabricated unit (13); the cover plate (32) and the adjacent prefabricated unit (13) are connected by connecting screws passing through the corresponding reserved connection holes (5) and the connection nuts.

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