Home elevator shaft

Abstract

The invention discloses a home elevator shaft. The home elevator shaft includes a prefabricated foundation pit and an assembly derrick. The prefabricated foundation pit includes a split base plate and a base. The base plate is a concrete structure precast on site at the elevator position. The base is a reinforced concrete structure precast off site. The base is placed on the base plate after the ground is leveled. The base and the base plate are connected by secondary pouring concrete. The assembly derrick is a three-dimensional frame formed by connecting the car top, a plurality of beams and four combined columns through screw parts. Each combined column includes a plurality of sub-columns. Two adjacent sub-columns are connected by node components, and all node components are arranged on planes at different heights. The invention has the advantages of convenient derrick hoisting and transportation, high bearing capacity, short foundation pit on-site operation time, environmental protection and hygiene, and not easy to seep water.

Description

Technical Field

[0001] The present invention relates to the field of home elevators, and in particular to a home elevator shaft. Background Art

[0002] Traditional home elevators include a foundation pit, a derrick, and a car that moves up and down. The foundation pit is constructed on site by digging a pit, tying steel bars on site, and pouring concrete on site, while the derrick is pre-welded in the factory or welded on site. Its defects are: first, the maintenance time after pouring the foundation pit is about 28 days, the construction period is long, it is easy to seep water, and it is not environmentally friendly; and the foundation pit needs to be protected, which makes it inconvenient for people in the area to travel and poses a safety hazard; second, the pre-welding method in the factory makes the derrick large in size, difficult to hoist and transport, and unsafe; third, the on-site welding method has the following defects: large operating area, long construction period, unsafe, and not environmentally friendly. Summary of the invention

[0003] In order to solve one or more of the above problems, the present invention provides a home elevator shaft.

[0004] According to one aspect of the present invention, the home elevator shaft comprises a prefabricated foundation pit and an assembly shaft frame.

[0005] The prefabricated foundation pit includes a split base plate and a pedestal. The base plate is a concrete structure pre-cast on site at the elevator location, and the pedestal is a reinforced concrete structure pre-cast off-site. There are several embedded connectors on the pedestal. The pedestal is placed on the base plate after the ground is leveled. The base and the base plate are connected by pouring concrete for the second time.

[0006] The assembly derrick is a three-dimensional frame formed by four combined columns, a car roof and several beams connected by screw parts. Each combined column includes several sub-columns. The two adjacent sub-columns are connected by node components. All node components are set on planes at different heights. The lower ends of the four sub-columns at the bottom are threadedly connected to the embedded connectors.

[0007] The space surrounded by the base and the assembly derrick forms an elevator passage, and the elevator is installed and operated in the elevator passage.

[0008] In some embodiments, the base includes a bottom plate and a box body of a reinforced concrete structure, and the bottom plate and the box body are integrally cast or threadedly connected.

[0009] The lower surface of the bottom plate matches the upper surface of the base plate. The box body is a rectangular shell structure with an open upper end. The lower end of the box body is connected to the bottom plate. A criss-cross steel mesh is embedded in the box body and the bottom plate.

[0010] A plurality of embedded connecting parts are arranged on the box body, the bottom plate is placed on the base plate after the ground is leveled, and the bottom plate and the base plate are connected by pouring concrete for the second time.

[0011] In some embodiments, a plurality of lifting rings are further provided at the upper end of the box body, the inner ends of the lifting rings are pre-cast in the box body, and the base can be moved through the lifting rings.

[0012] In some embodiments, the lifting ring is formed by bending a steel bar, and the lifting ring includes a U-shaped opening ring body, and the ends of the horizontal ribs of the ring body are bent vertically downward to form longitudinal ribs. The ring body is located at the outer end of the box, the rear ends of the horizontal ribs are vertically buried in the box, and the longitudinal ribs are longitudinally buried in the box.

[0013] In some embodiments, the steel mesh includes a first reinforcement rib and a second reinforcement rib, wherein the first reinforcement rib is horizontally arranged and the second reinforcement rib is longitudinally arranged in the box body and the bottom plate, and the first reinforcement rib and the second reinforcement rib are connected to each other through stirrups;

[0014] The base plate is a plain concrete cushion.

[0015] In some embodiments, the embedded connecting member includes an embedded plate, a plurality of connecting ribs are provided at the lower end of the embedded plate, the embedded plate and the connecting ribs are pre-cast on the box body by concrete, and the upper surface of the embedded plate is exposed from the box body.

[0016] In some embodiments, a node assembly is welded to one end of a sub-column, and the other end of the node assembly is connected to an adjacent sub-column via a threaded member;

[0017] Or the two ends of the node assembly are connected to two adjacent sub-columns through screws.

[0018] In some embodiments, the column is a first rectangular tube, the node assembly is a second rectangular tube, the outer wall size of the second rectangular tube is the same as the inner hole size of the first rectangular tube, and both ends of the second rectangular tube are respectively located in the two first rectangular tubes.

[0019] In some embodiments, the plurality of sub-columns include a plurality of middle sub-columns of the same length, an upper sub-column and a lower sub-column. In the four combined columns, the lengths of the middle sub-columns are equal, the sum of the lengths of the four upper sub-columns and the lower sub-column is equal, the lengths of each upper sub-column are not equal, and the lengths of each lower sub-column are not equal.

[0020] In some embodiments, the upper ends of the four uppermost sub-columns are vertically connected to the car roof through screws, and the car roof is connected to the upper end of the building through a top connecting rod.

[0021] The beams are arranged horizontally, and the two ends of several beams are connected between four combined columns through screws.

[0022] At the entrance of each floor of the building, the two combined columns at the near end are connected to a corridor respectively, and the corridor is connected to the entrance. There is a protective railing at the top of the corridor.

[0023] In the plane where every two combined columns are located, two cross-shaped diagonal braces are arranged between adjacent beams, and the two ends of the diagonal braces are connected to the combined columns through screws.

[0024] A sealing cover made of glass or aluminum-plastic plate is arranged on the outside of the assembly derrick, and a door hole for people to enter and exit is arranged opposite to the entrance of each floor of the sealing cover.

[0025] The home elevator shaft adopts an assembled derrick. First, the derrick is optimized and divided into modules. The modules are assembled on site using threaded connectors such as bolts and nuts. Moreover, through strength optimization calculation, the spliced ​​combined columns are designed so that the node components at each connection are not in the same height plane. The beneficial effects are: first, the assembled structure and modular setting of the derrick, especially the conversion of longer columns into short columns, reduce the cost of parts, reduce the difficulty of processing, greatly reduce the required size of the transport vehicle, and make lifting and transportation convenient, low cost, short operation time, and safe on-site installation; second, the new combined columns, the easy-to-break surfaces are not in the same height plane, the maximum load-bearing capacity and fatigue load bearing capacity are greatly improved, the ability to resist wind and earthquake is increased, the service life is long, and the safety performance is high.

[0026] The home elevator shaft adopts a split prefabricated foundation pit. The base plate is directly cast on site near the building, while the base is cast in advance in the factory. The beneficial effects are: first, the base is made in advance in the factory, which saves the on-site operation cycle. The pouring and curing time of the base plate is only three days, and the base of the concrete structure is batch-produced and ready for use in the factory. The base installed on site is directly placed on the base plate and installed within one day. The total construction period is controlled within one week. Compared with the 28-day construction period of the overall on-site production, the total construction period is shortened by more than 20 days, which greatly saves the on-site operation time; second, the base is made in the factory, and steel bars can be tied and box-type foundation pits can be cast in advance on the standard operation template, which can greatly improve the flatness and verticality of the foundation pit, improve the installation accuracy of the elevator, and facilitate fast and high-precision installation on site; third, the base plate provides a good installation reference; fourth, the on-site installation time is short, environmentally friendly and hygienic, the precast concrete has a high density, and is not easy to seep water. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of a home elevator shaft according to an embodiment of the present invention;

[0028] Figure 2 for Figure 1 A schematic top view of the prefabricated foundation pit shown;

[0029] Figure 3 for Figure 2 AA cross-sectional schematic diagram of the prefabricated foundation pit shown;

[0030] Figure 4 for Figure 2A schematic diagram of the lifting ring shown;

[0031] Figure 5 for Figure 2 A schematic top view of the embedded connector shown;

[0032] Figure 6 for Figure 5 The schematic diagram of the main view of the embedded connecting parts shown;

[0033] Figure 7 for Figure 1 A schematic front view of the assembled derrick is shown;

[0034] Figure 8 for Figure 7 The schematic diagram of the front view of the combined column and the node assembly shown;

[0035] Fig. 9 for Figure 8 A top view schematic diagram of the combined column and node assembly shown;

[0036] Fig.10 for Figure 1 A schematic top view of the assembled derrick is shown;

[0037] Prefabricated foundation pit 01, base plate 011, base 012, bottom plate 0120, box body 0121, steel mesh 0122, first reinforcing rib 0123, second reinforcing rib 0124, embedded connector 013, embedded plate 0131, connecting rib 0132, lifting ring 014, ring body 0140, horizontal rib 0141, longitudinal rib 0142;

[0038] Assemble the derrick 02, the combined column 1, the sub-column 11, the middle sub-column 111, the upper sub-column 112, the lower sub-column 113, the car roof 2, the cross beam 3, the node assembly 4, the corridor 5, the top connecting rod 6, the diagonal brace 7, the protective railing 8, the sealing cover 9, and the door hole 10. DETAILED DESCRIPTION

[0039] The present invention will be further described in detail below with reference to the accompanying drawings. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0040] Figures 1 to 10 A home elevator shaft according to an embodiment of the present invention is schematically shown. As shown in the figure, the device includes a prefabricated foundation pit 01 and an assembly shaft frame 02.

[0041] The prefabricated foundation pit 01 includes a split base plate 011 and a base 012. The base plate 011 is a concrete structure precast on site at the elevator location, and the base 012 is a reinforced concrete structure precast off site. A number of embedded connectors 013 are provided on the base 012. The base 012 is placed on the base plate 011 after the ground is leveled. The base 012 and the base plate 011 are connected by pouring concrete for the second time.

[0042] The assembly derrick 02 is a three-dimensional frame formed by connecting four combined columns 1, a car roof 2 and a plurality of crossbeams 3 through screw parts. Each combined column 1 includes a plurality of sub-columns 11. Two adjacent sub-columns 11 are connected by a node assembly 4. All the node assemblies 4 are arranged on planes at different heights. The lower ends of the four sub-columns 11 at the bottom are threadedly connected to the embedded connectors 013.

[0043] The space surrounded by the base 012 and the assembly derrick 02 forms an elevator passage, and the elevator is installed and operated in the elevator passage.

[0044] The home elevator shaft adopts an assembled derrick 02. First, the derrick is optimized and divided into various modules. The modules are assembled on site using threaded connectors such as bolts and nuts. Moreover, through strength optimization calculation, the spliced ​​combined columns 1 are designed as a solution in which the node components 4 at each connection are not in the same height plane. Its beneficial effects are: first, the assembled structure and modular setting of the derrick, especially the conversion of longer columns into short columns, reduce the cost of parts, reduce the difficulty of processing, greatly reduce the required size of the transport vehicle, and make lifting and transportation convenient, low cost, short operation time, and safe on-site installation; second, the new combined column 1, the various easy-to-break surfaces are not in the same height plane, the maximum bearing capacity and the ability to withstand fatigue loads are greatly improved, the ability to resist wind and earthquake is increased, the service life is long, and the safety performance is high.

[0045] The home elevator shaft adopts a split prefabricated foundation pit 01, and the base plate 011 is directly cast on site near the building, while the base 012 is cast in advance in the factory. Its beneficial effects are: first, the base 012 is made in advance in the factory, which saves the on-site operation cycle. The casting and curing time of the base plate 011 is only three days, and the base 012 of the concrete structure is batch-produced and ready for use in the factory. The base 012 installed on site is directly placed on the base plate 011 and installed within one day. The total construction period is controlled within one week. Compared with the 28-day construction period of the overall on-site production, the total construction period is shortened by more than 20 days, which greatly saves the on-site operation time; second, the base 011 is made in the factory, and it can be used on the standard template for operation to tie steel bars and pre-cast the box-type foundation pit, which can greatly improve the flatness and verticality of the foundation pit, improve the installation accuracy of the elevator, and facilitate fast and high-precision installation on site; third, the base plate 011 provides a good installation benchmark; fourth, the on-site installation time is short, environmentally friendly and hygienic, the precast concrete has a high density, and is not easy to seep water.

[0046] Preferably, the base 012 includes a bottom plate 0120 and a box body 0121 of a reinforced concrete structure, and the bottom plate 0120 and the box body 0121 are integrally cast or threadedly connected.

[0047] The lower surface of the bottom plate 0120 matches the upper surface of the base plate 011. The box body 0121 is a rectangular shell structure with an upper end open. The lower end of the box body 0121 is connected to the bottom plate 0120. The box body 0121 and the bottom plate 0120 are pre-embedded with crisscross steel mesh 0122.

[0048] Several embedded connectors 013 are arranged on the box 0121, the bottom plate 0120 is placed on the base plate 011 after the ground is leveled, and the second pouring of concrete connects the bottom plate 0120 and the base plate 011. The beneficial effects are: the integral pouring can improve the overall strength of the foundation pit, and the threaded split structure is convenient for the processing and transportation of the foundation pit; the structure is suitable for the installation of standard general elevators.

[0049] Preferably, the upper end of the box 0121 is also provided with a plurality of lifting rings 014, the inner ends of the lifting rings 014 are pre-cast in the box 0121, and the base 012 can be moved through the lifting rings 014. The beneficial effect is that the use of the lifting rings 014 can greatly improve the lifting speed and quick transportation.

[0050] Preferably, the lifting ring 014 is formed by bending a steel bar, and the lifting ring 014 includes a U-shaped opening ring body 0140, the ends of the horizontal ribs 0141 of the ring body 0140 are bent vertically downward to form longitudinal ribs 0142, the ring body 0140 is located at the outer end of the box body 0121, the rear ends of the horizontal ribs 0141 are vertically buried in the box body 0121, and the longitudinal ribs 0142 are longitudinally buried in the box body 0121. The beneficial effect is that the lifting structure has a strong bearing strength and can improve the strength of the box body 0121 itself.

[0051] Preferably, the steel mesh 0122 includes a first reinforcing rib 0123 and a second reinforcing rib 0124. In the box 0121 and the bottom plate 0120, the first reinforcing rib 0123 is horizontally arranged and the second reinforcing rib 0124 is longitudinally arranged. The first reinforcing rib 0123 and the second reinforcing rib 0124 are connected to each other through stirrups.

[0052] In the bottom plate 0120, the steel mesh 0122 is a double-layer bidirectional structure.

[0053] When the bottom plate 0120 and the box body 0121 are cast as one piece, the second reinforcing ribs 0124 in the box body 0121 extend downward to the lower end of the bottom plate 0120. The beneficial effect is that the steel mesh 0123 can greatly improve the bearing strength of the box body 0121.

[0054] Preferably, the first reinforcing rib 0123 and the second reinforcing rib 0124 are respectively bent from a steel bar into a rectangular structure.

[0055] Preferably, the base plate 011 is a plain concrete cushion layer; the upper surface of the base plate 011 is a horizontal surface. The beneficial effect is that the base plate 011 of this arrangement is easy to process and has high strength.

[0056] Preferably, the embedded connecting part 013 includes an embedded plate 0131, a plurality of connecting ribs 0132 are provided at the lower end of the embedded plate 0131, the embedded plate 0131 and the connecting ribs 0132 are pre-cast on the box body 0121 by concrete, the upper surface of the embedded plate 0131 is exposed from the box body 0121 and is connected to the elevator shaft frame, and the connecting ribs 0132 and the embedded plate 0131 are welded by perforation plug welding.

[0057] Preferably, a node assembly 4 is welded at one end of the sub-column 11, and the other end of the node assembly 4 is connected to the adjacent sub-column 11 through a threaded member; the beneficial effect is that the structure with one end welded and the other end connected is faster and has high strength.

[0058] Preferably, the two ends of the node assembly 4 are connected to two adjacent sub-columns 11 by screws, respectively. The beneficial effect is that the double-end thread connection makes the parts more versatile.

[0059] Preferably, the sub-column 11 is a first rectangular tube, the node assembly 4 is a second rectangular tube, the outer wall size of the second rectangular tube is the same as the inner hole size of the first rectangular tube, and the two ends of the second rectangular tube are respectively located in the two first rectangular tubes. The beneficial effect is that the combined column 1 formed by the sleeve structure of the rectangular tube has high strength such as bending and torsion resistance and high straightness.

[0060] Preferably, the sub-columns 11 are I-beams, and the node components 4 are longitudinal connecting plates or channel steels.

[0061] Preferably, the plurality of sub-columns 11 include a plurality of middle sub-columns 111 of the same length, an upper sub-column 112 and a lower sub-column 113. In the four combined columns 1, the lengths of the middle sub-columns 111 are equal, the sum of the lengths of the four upper sub-columns 112 and the lower sub-column 113 is equal, the lengths of the upper sub-columns 112 are not equal, and the lengths of the lower sub-columns 113 are not equal. The beneficial effect is that the arrangement can further optimize the strength of the combined column 1, and is simple to manufacture, easy to cut, and easy to install.

[0062] Preferably, the upper ends of the four uppermost sub-columns 11 are respectively vertically connected to the car roof 2 through screws, and the car roof 2 is connected to the upper end of the building outside through the top connecting rod 6.

[0063] The cross beams 3 are arranged horizontally, and the two ends of the cross beams 3 are connected between the four combined columns 1 through screws.

[0064] At the entrance of each floor of the building, the two combined columns 1 at the proximal end are respectively connected to a corridor 5, and the corridor 5 is connected to the entrance. Preferably, a protective railing 8 is provided at the upper end of the corridor 5, and its beneficial effect is that the protective railing 8 can improve the safety of users.

[0065] Preferably, in the plane where every two combined columns 1 are located, two cross-shaped diagonal braces 7 are provided between adjacent beams 3, and both ends of the diagonal braces 7 are connected to the combined columns 1 by screws, which has the beneficial effect that the diagonal braces 7 improve the strength of the derrick.

[0066] Preferably, a sealing cover 9 of glass or aluminum-plastic plate is provided on the outside of the assembly derrick 02, and a door hole 10 for people to enter and exit is provided at the entrance of each floor of the sealing cover 9. The beneficial effect is that the sealing cover 9 can further improve the comfort performance of the elevator.

[0067] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A home elevator shaft, characterized in that: It includes a prefabricated foundation pit (01) and an assembled derrick (02). The prefabricated foundation pit (01) comprises a split base plate (011) and a pedestal (012); the base plate (011) is a concrete structure precast on-site at the elevator location; the pedestal (012) is a reinforced concrete structure precast off-site; a plurality of embedded connectors (013) are provided on the pedestal (012); the pedestal (012) is placed on the base plate (011) after the ground is leveled; and the base plate (012) and the base plate (011) are connected by secondary pouring of concrete. The assembly derrick (02) is a three-dimensional frame formed by connecting four combined columns (1), a car roof (2) and a plurality of crossbeams (3) via threaded parts. Each of the combined columns (1) includes a plurality of sub-columns (11). Two upper and lower adjacent sub-columns (11) are connected via a node assembly (4). All the node assemblies (4) are arranged on planes at different heights. The lower ends of the four sub-columns (11) at the bottom are threadedly connected to the embedded connector (013). The space enclosed by the base (012) and the assembly derrick (02) forms an elevator passage, and the elevator is installed and operated in the elevator passage; the base (012) comprises a bottom plate (0120) and a box body (0121) of a reinforced concrete structure, and the bottom plate (0120) and the box body (0121) are integrally cast and connected or threadedly connected. The lower surface of the bottom plate (0120) matches the upper surface of the base plate (011); the box (0121) is a rectangular shell structure with an open upper end; the lower end of the box (0121) is connected to the bottom plate (0120); and a criss-cross steel mesh (0122) is pre-embedded in the box (0121) and the bottom plate (0120). A plurality of embedded connectors (013) are arranged on the box body (0121), the bottom plate (0120) is placed on the base plate (011) after the ground is leveled, and the bottom plate (0120) and the base plate (011) are connected by pouring concrete for the second time; a plurality of lifting rings (014) are also arranged on the upper end of the box body (0121), the inner ends of the lifting rings (014) are pre-cast in the box body (0121), and the base (012) can be moved through the lifting rings (014); the lifting ring (014) is formed by bending a steel bar, and the lifting ring (014) includes a U-shaped opening ring body (0140), and the end of the horizontal rib (0141) of the ring body (0140) The ring body (0140) is located at the outer end of the box body (0121), the rear end of the horizontal rib (0141) is vertically buried in the box body (0121), and the longitudinal rib (0142) is longitudinally buried in the box body (0121); the steel mesh (0122) includes a first reinforcing rib (0123) and a second reinforcing rib (0124); in the box body (0121) and the bottom plate (0120), the first reinforcing rib (0123) is horizontally arranged and the second reinforcing rib (0124) is longitudinally arranged, and the first reinforcing rib (0123) and the second reinforcing rib (0124) are connected to each other through stirrups; The base plate (011) is a plain concrete cushion layer; the embedded connecting piece (013) comprises an embedded plate (0131); a plurality of connecting ribs (0132) are provided at the lower end of the embedded plate (0131); the embedded plate (0131) and the connecting ribs (0132) are pre-cast on the box body (0121) by concrete; and the upper surface of the embedded plate (0131) is exposed from the box body (0121); The plurality of sub-columns (11) include a plurality of middle sub-columns (111) of the same length, an upper sub-column (112), and a lower sub-column (113); in the four combined columns (1), the lengths of the middle sub-columns (111) are equal, the sum of the lengths of the four upper sub-columns (112) and the lower sub-column (113) is equal, the lengths of the upper sub-columns (112) are not equal, and the lengths of the lower sub-columns (113) are not equal; The upper ends of the four uppermost branch columns (11) are respectively vertically connected to the car roof (2) via threaded members, and the car roof (2) is connected to the upper end of the building outside via a top connecting rod (6). The cross beam (3) is horizontally arranged, and the two ends of a plurality of the cross beams (3) are connected between the four combined columns (1) through screw members. At the entrance of each floor of the building, the two combined columns (1) at the near end are respectively connected to a corridor (5), the corridor (5) is connected to the entrance, and a protective railing (8) is provided at the upper end of the corridor (5). In the plane where every two of the combined columns (1) are located, two cross-shaped diagonal braces (7) are provided between the adjacent cross beams (3), and the two ends of the diagonal braces (7) are connected to the combined columns (1) via screws. The outer side of the assembly derrick (02) is provided with a sealing cover (9) made of glass or aluminum-plastic plate, and the sealing cover (9) is provided with a door hole (10) for people to enter and exit at the entrance of each floor.

2. A home elevator shaft according to claim 1, characterized in that: A node assembly (4) is welded to one end of the sub-column (11), and the other end of the node assembly (4) is connected to an adjacent sub-column (11) via a threaded member; Or two ends of the node assembly (4) are connected to two adjacent sub-columns (11) via threaded members.

3. The home elevator shaft according to claim 2, characterized in that: The branch column (11) is a first rectangular tube, the node assembly (4) is a second rectangular tube, the outer wall size of the second rectangular tube is the same as the inner hole size of the first rectangular tube, and the two ends of the second rectangular tube are respectively located in the two first rectangular tubes.

Images