Elevator shaft prefabricated part, prefabricated formwork and construction method

Abstract

The invention relates to an elevator shaft prefabricated part, a prefabricated formwork and a construction method, and belongs to the technical field of constructional engineering.The elevator shaft prefabricated part comprises a plurality of unit prefabricated parts which are sequentially arranged in the vertical direction, and the unit prefabricated parts are integrally prefabricated and formed; the elevator shaft prefabricated formwork comprises a telescopic inner formwork set, a telescopic outer formwork set, a sealing plate and a bottom plate, a first reserved door opening is formed in one side of the telescopic inner formwork set, the telescopic outer formwork set is arranged on the peripheral side of the telescopic inner formwork set in a sleeving mode, and a second reserved door opening is formed in the side, close to the first reserved door opening, of the telescopic outer formwork set; a grouting cavity is defined by the telescopic inner formwork set, the telescopic outer formwork set and the sealing plate. The elevator shaft prefabricated part is integrally formed and prefabricated, so that the integrality of the elevator shaft is good, and the construction quality of the elevator shaft is improved; by the adoption of the elevator shaft prefabricated formwork, construction efficiency is improved, and cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of building engineering, and in particular to an elevator shaft prefabricated component, a prefabricated template and a construction method. Background Art

[0002] The elevator shaft is the hoistway where the elevator is installed. As the infrastructure that supports the installation and operation of the elevator, it plays a key role in the safety and convenience of use of the building.

[0003] When constructing an elevator shaft using traditional methods, a pour-on-site construction method is usually adopted. First, the elevator shaft pit is excavated, and the foundation is ensured to be stable and strong. The steel mesh and support frame are fixed and installed on the foundation, and concrete is poured. After the concrete curing work is completed, the verticality and horizontality of the concrete wall are tested, and then the support frame disassembly work begins. Due to the small space of the elevator shaft, the construction unit usually has defects such as long concrete curing time, great safety hazards, and difficult to control construction quality during the construction of the elevator shaft.

[0004] In view of the above phenomenon, the inventor believes that there is an urgent need for a new construction solution that can improve construction efficiency, safety and quality. Summary of the invention

[0005] The purpose of the present invention is to provide an elevator shaft prefabricated component, a prefabricated template and a construction method to improve the construction efficiency, safety and quality of the elevator shaft.

[0006] The elevator shaft prefabricated part provided by the present invention adopts the following technical solution: The elevator shaft prefabricated part is characterized in that it comprises a plurality of groups of unit prefabricated parts arranged in sequence along the vertical direction, and the unit prefabricated parts are prefabricated in an integrated manner; The unit prefabricated part is provided with an elevator shaft area and an elevator entrance and exit, the elevator shaft area is used to install the elevator, and the elevator shaft area is in a connected state with the elevator entrance and exit; The unit prefabricated parts are provided with steel bars inside, and the steel bars are provided in multiple groups. The multiple groups of the steel bars are arranged around the unit prefabricated parts, and some of the steel bars are in a state of extending out of the top of the unit prefabricated parts. Two adjacent groups of the unit prefabricated parts are connected by casing grouting.

[0007] Preferably, the bottom of the unit prefabricated part is provided with an insertion groove for embedding the steel bars on the adjacent unit prefabricated parts, and the side wall of the unit prefabricated part body is provided with a first grouting hole, and a plurality of groups of the first grouting holes are arranged, and each group of the insertion grooves corresponds to and connects two groups of first grouting holes distributed in an upper and lower state.

[0008] The present invention also provides an elevator shaft prefabricated template, which is used to make the above-mentioned elevator shaft prefabricated part, a telescopic inner template group, the telescopic inner template group is cylindrical, and a first reserved door opening is opened on one side of the telescopic inner template group; A telescopic outer template group, the telescopic outer template group is cylindrical, the telescopic outer template group is sleeved on the circumference of the telescopic inner template group, and a second reserved door opening is opened on the side of the telescopic outer template group close to the first reserved door opening; A sealing plate, wherein the sealing plate is detachably arranged on the side walls of the first reserved door opening and the second reserved door opening, the telescopic inner formwork group, the telescopic outer formwork group and the sealing plate together form a grouting area for making a unit prefabricated part, the side wall of the telescopic outer formwork group is provided with a second grouting hole connected to the grouting area, the second grouting hole is provided with a plurality of groups, and the second grouting hole is detachably installed with a rubber plug; The bottom plate is detachably mounted on the bottom ends of the telescopic inner formwork group and the telescopic outer formwork group, and a plurality of groups of columns extending vertically upward to the grouting area are arranged on the surface of the bottom plate.

[0009] Preferably, the telescopic inner template group includes a first template and a second template, the first template is cylindrical, the cross section of the second template is U-shaped, the first template is provided with a first sliding cavity running through both ends in the vertical direction, the second template is slidably connected in the first sliding cavity, and the second template and the first sliding cavity wall are provided with a clamping strip group; The telescopic outer template group includes a third template and a fourth template. The third template is cylindrical, and the cross-section of the fourth template is U-shaped. The third template is provided with a second sliding cavity running through both ends in the vertical direction. The fourth template is slidably connected in the second sliding cavity. The fourth template and the second sliding cavity wall are provided with a snap-on strip group.

[0010] Preferably, the clamping strip assembly includes a first fixing plate, a second fixing plate, a movable ruler tooth and a lifting assembly; The first fixed plate is fixedly arranged on the end walls of the second template and the fourth template respectively, the second fixed plate is fixedly arranged on the cavity walls of the first sliding cavity and the second sliding cavity respectively, the second fixed plate is provided with a working cavity on the side facing the first fixed plate, the movable ruler teeth are provided with multiple groups, and the multiple groups of movable ruler teeth are evenly arranged in the working cavity along the vertical direction, the movable ruler teeth are slidably connected to the cavity wall of the working cavity along the inclined direction, and the first fixed plate is provided with a tooth groove matching with the movable ruler teeth.

[0011] Preferably, the lifting assembly includes a lifting rod, a spring and a connecting rod, the lifting rod is slidably connected in the working cavity along the vertical direction, a rod hole for the lifting rod to pass through is opened at the top of the first fixed plate, and multiple groups of connecting rods are provided, one end of the connecting rod is rotatably connected to the side wall of the lifting rod, and the other end of the connecting rod is rotatably connected to the side wall of the movable scale tooth, the spring is fixedly arranged on the bottom wall of the working cavity along the vertical direction, and the top of the spring is fixedly arranged on the bottom end of the lifting rod, and in the natural state of the spring, the movable scale tooth part extends out of the working cavity and is embedded in the tooth groove.

[0012] Preferably, the first template includes a first unit template and a second unit template, the cross section of the first unit template is U-shaped, the first reserved door opening is opened in the side wall of the second unit template, the first sliding cavity is opened in the first unit template, and the ends of the first unit template and the second unit template are connected to each other with a corner joint by bolts; The third template includes a third unit template and a fourth unit template. The cross-section of the third unit template is U-shaped. The second reserved door opening is opened on the side wall of the third unit template. The second sliding cavity is opened in the third unit template. The ends of the third unit template and the fourth unit template are connected together with a corner joint by bolts.

[0013] Preferably, the first unit template and the third unit template are made of aluminum; The second unit formwork and the fourth unit formwork are made of wood; The telescopic outer formwork group and the telescopic inner formwork group are respectively provided with lifting holes. In the natural state of the telescopic outer formwork group and the telescopic inner formwork group, the lifting holes are in a state of being overlapped with the second grouting holes.

[0014] In addition, the present invention also provides an elevator shaft construction method, which uses the above-mentioned elevator shaft prefabricated template to prefabricate, comprising the following steps: S1, connecting the first unit template and the second unit template together through a corner joint to obtain a first template, and installing the second template into the first sliding cavity of the first template to obtain a telescopic inner template group; The third unit template and the fourth unit template are connected together through a corner joint to obtain a third template, and the fourth template is installed in the second sliding cavity of the third template to obtain a telescopic outer template group; Installing the sealing plate on the side walls of the first reserved door opening and the second reserved door opening opened in the telescopic inner template group and the telescopic outer template group; Place the base plate on the ground, and install the telescopic inner formwork set and the telescopic outer formwork set on the surface of the base plate respectively; S2, placing steel bars in the grouting area surrounded by the telescopic inner formwork group, the telescopic outer formwork group and the sealing plate, and applying a release agent on the side wall of the grouting area, removing the rubber plug installed in the second grouting hole, pouring concrete slurry into the grouting area through the second grouting hole, and stopping grouting when the concrete slurry in the grouting area rises to the top of the grouting area, and installing the rubber plug in the second grouting hole to perform maintenance operations on the concrete slurry in the grouting area; S3. If the required unit prefabricated parts have a non-standard floor height, and the height of the unit prefabricated parts is higher than the height of the grouting area of ​​the prefabricated formwork in the natural state, after the concrete in the grouting area is solidified, the sealing plate is first disassembled, and the clamping strip groups are respectively extracted in the vertical upward direction, and at the same time, the scaffold is pressed to the top of the second formwork and the fourth formwork, and the first formwork and the third formwork are extracted in the vertical upward direction. After the first formwork and the third formwork slide to the preset height, concrete slurry is poured into the grouting area through the second grouting hole, and the concrete slurry in the grouting area is cured; S4, after the curing operation of the concrete slurry in the grouting area is completed, the prefabricated formwork is disassembled to obtain the unit prefabricated parts; S5. With the help of human labor, the staff transports the prefabricated units obtained in step S4 to the transfer device, and moves the transfer device to the floor to be constructed of the building by means of a crane, so that the prefabricated units located above are connected with the prefabricated units located below, until the construction of the entire elevator shaft is completed.

[0015] Preferably, the transfer device in step S5 includes a mobile device and a carrying device; The mobile device comprises a mobile trolley and a clamping assembly; the clamping assembly comprises a telescopic cylinder group, a rotary joint group, a clamping plate, a hydraulic press and a motor, the hydraulic press and the motor are arranged on the mobile trolley, and the hydraulic press and the motor are used to control the movement of the telescopic cylinder group and the rotary joint; The rotary joint group includes a first rotary joint and a second rotary joint, the first rotary joint is vertically arranged on the bottom plate surface, and the second rotary joint is arranged on the telescopic cylinder group; The telescopic cylinder group includes a first telescopic cylinder, a second telescopic cylinder and a third telescopic cylinder, the first telescopic cylinder is arranged on the surface of the moving trolley along the vertical direction, the second rotating joint is arranged at the telescopic end of the first telescopic cylinder, the second telescopic cylinder is arranged on the second rotating joint, the rotation axis of the second rotating joint coincides with the central axis of the second telescopic cylinder, and the third telescopic cylinder is provided with two groups, the two groups of the third telescopic cylinders are arranged at the telescopic end of the second telescopic cylinder, and the central axes of the two groups of the third telescopic cylinders coincide; The clamping plates are provided in two groups, and the two groups of clamping plates are respectively provided at the telescopic ends of the two groups of the third telescopic cylinders; the clamping surfaces of the clamping plates are provided with shock absorbing plates; The carrying device is used to carry mobile equipment, and the carrying device includes a carrying plate, a surrounding plate and a lifting ring. The lifting ring is provided in multiple groups, and the multiple groups of lifting rings are evenly distributed on the surface of the carrying plate. The surrounding plate is arranged on the peripheral side of the carrying plate in a vertically upward direction. The surrounding plate is provided with an opening for the mobile equipment to enter and exit. The carrying plate is rotatably connected to a rotating plate at one end of the opening, and the rotating axis of the rotating plate is in a horizontal state.

[0016] In summary, the present invention includes the following beneficial technical effects: 1. The elevator shaft prefabricated parts in the present invention include multiple groups of unit prefabricated parts, which are made by prefabricated templates and integrally cast, and the prepared unit prefabricated parts have an elevator shaft area and an elevator entrance and exit, and two adjacent groups of unit prefabricated parts are butt-jointed and fixed by casing grouting. By assembling multiple groups of unit prefabricated parts using assembly technology, the construction process not only conforms to the concept of green buildings, but also reduces the installation work of the framework and steel mesh in the foundation pit, thereby improving the efficiency, safety and quality of the construction.

[0017] 2. The elevator shaft prefabricated formwork in the present invention comprises a telescopic inner formwork group, a telescopic outer formwork group, a sealing plate and a bottom plate, wherein the telescopic inner formwork group, the telescopic outer formwork group and the sealing plate enclose a grouting area, and concrete slurry is poured into the grouting area through the second grouting hole provided on the telescopic outer formwork group, and the slow-setting soil slurry in the grouting area is cured, and then the formwork is removed, thereby completing the production of the unit prefabricated parts; The heights of the telescopic inner formwork group and the telescopic outer formwork group in the present invention are both adjustable, and the sealing plate can be detachably installed on the telescopic inner formwork group and the telescopic outer formwork group. Therefore, if the preset height of the unit prefabricated part is higher than the height of the grouting area, after the concrete slurry in the grouting area is solidified, the sealing plate is removed, and the heights of the telescopic inner formwork group and the telescopic outer formwork group are adjusted to the preset values, and grouting can be performed to the area above the solidified concrete slurry in the grouting area.

[0018] 3. The telescopic inner template group in the present invention includes a first template and a second template, the second template is slidably connected to the first sliding cavity of the first template, and the second template and the first sliding cavity are provided with a lifting component, and the outer template includes a third template and a fourth template, the fourth template is slidably connected to the second sliding cavity of the third template, and the fourth template and the second sliding cavity are provided with a lifting component; The lifting rod in the lifting assembly is extracted in the vertical upward direction, and downward pressure is applied to the second template and the fourth template at the same time. At this time, the movable ruler tooth slides in the direction away from the tooth groove, and the movable ruler tooth is separated from the tooth groove. The first template and the third template slide in the vertical upward direction, thereby increasing the height of the grouting area. The lifting rod is released, and in the natural state of the spring, the lifting rod slides into the working cavity. At this time, the movable ruler tooth slides in the direction of the tooth groove. When the movable ruler tooth is embedded in the tooth groove, the first template and the third template can remain fixed.

[0019] 4. In the construction method of the elevator shaft of the present invention, firstly, the unit prefabricated parts are prefabricated in the prefabricated template, and then the unit prefabricated parts are transported one by one into the building through the transport device, so that the unit prefabricated parts located above are connected with the unit prefabricated parts located below, which greatly improves the work efficiency and the safety of the construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of an elevator shaft prefabricated component provided by an embodiment of the present invention; Figure 2 It is a structural schematic diagram of a unit prefabricated component; Figure 3 It is a structural schematic diagram of an elevator shaft prefabricated template provided by an embodiment of the present invention; Figure 4 It is a schematic diagram of the exploded structure of the elevator shaft prefabricated template; Figure 5 yes Figure 3 A schematic diagram of the local enlarged structure of the middle A area; Figure 6 It is a structural schematic diagram of a card connection strip assembly; Figure 7 is a schematic diagram of the cross-sectional structure of the card connection strip assembly; Figure 8 This is a schematic diagram of the structure of the elevator shaft prefabricated template after it is raised; Fig. 9 It is a structural schematic diagram of the telescopic inner template group; Fig.10 It is a structural schematic diagram of the telescopic outer template group; Fig.11 It is a structural diagram of the load-bearing equipment.

[0021] Explanation of reference numerals: 1. unit prefabricated part; 11. elevator shaft area; 12. elevator entrance and exit; 13. reinforcement member; 14. insertion groove; 15. first grouting hole; 2. telescopic inner formwork group; 21. first formwork; 211. first unit formwork; 212. second unit formwork; 213. first sliding cavity; 214. corner joint; 22. second formwork; 23. first reserved door opening; 3. telescopic outer formwork group; 31. third formwork; 311. third unit formwork; 312. fourth unit formwork; 313. second sliding cavity; 32. fourth formwork; 33. second reserved door opening; 34. second grouting hole; 341. rubber plug; 35. lifting hole; 4. sealing plate; 5. bottom plate; 51. column; 6. Grouting area; 7. Snap-on strip group; 71. First fixed plate; 711. Tooth groove; 712. Rod hole; 72. Second fixed plate; 721. Working chamber; 722. Guide groove; 723. Guide piece; 73. Movable ruler tooth; 74. Lifting assembly; 741. Lifting rod; 742. Spring; 743. Connecting rod; 744. Limit block; 8. Moving device; 81. Moving trolley; 82. First telescopic cylinder; 83. Second telescopic cylinder; 84. Third telescopic cylinder; 85. First rotating joint; 86. Second rotating joint; 87. Clamping plate; 871. Shock-absorbing plate; 88. Hydraulic press; 89. Motor; 9. Carrying device; 91. Carrying plate; 911. Rotating plate; 92. Enclosure; 93. Lifting ring. DETAILED DESCRIPTION

[0022] The following is combined with Figure 1-11 The present invention is described in further detail.

[0023] The present invention provides a prefabricated elevator shaft. Figure 1 , including multiple groups of unit prefabricated parts 1 arranged in sequence along the vertical direction, the unit prefabricated parts 1 are provided with an elevator shaft area 11 and an elevator entrance and exit 12 for installing the elevator, and the elevator entrance and exit 12 are connected with the elevator shaft area 11; the unit prefabricated parts 1 are integrated prefabricated, and steel bars 13 are arranged inside the unit prefabricated parts 1, and multiple groups of steel bars 13 are arranged around the unit prefabricated parts 1, and some of the steel bars 13 are in a state of extending out of the top of the unit prefabricated parts 1, and two adjacent groups of unit prefabricated parts 1 are butt-jointed and fixed by casing grouting.

[0024] Reference Figure 1 and Figure 2The bottom of the unit prefabricated part 1 is provided with an insertion groove 14 for the reinforcement member 13 on the adjacent unit prefabricated part 1 to be embedded, and the side wall of the unit prefabricated part 1 is provided with a first grouting hole 15. There are multiple groups of first grouting holes 15, and each group of the insertion groove 14 corresponds to and connects two groups of first grouting holes 15 distributed in an upper and lower state. When the reinforcement member 13 on the unit prefabricated part 1 located at the bottom is embedded in the insertion groove 14 of the unit prefabricated part 1 located at the top, concrete slurry is injected into the insertion groove 14 through the first grouting hole 15 located at the bottom. When concrete slurry flows out of the first grouting hole 15 located at the top, the grouting work is stopped. At this time, the insertion groove 14 is filled with concrete slurry, thereby enhancing the connection strength of the two adjacent groups of unit prefabricated parts 1.

[0025] The present invention also provides an elevator shaft prefabricated template, which is used to make the above-mentioned elevator shaft prefabricated parts. Figure 3 and Figure 4 , including a telescopic inner formwork group 2, a telescopic outer formwork group 3, a sealing plate 4 and a bottom plate 5, the bottom plate 5 is horizontally placed on the ground, and the bottom ends of the telescopic inner formwork group 2 and the telescopic outer formwork group 3 are detachably mounted on the surface of the bottom plate 5; the telescopic inner formwork group 2 and the telescopic outer formwork group 3 are both cylindrical, the telescopic outer formwork group 3 is sleeved on the peripheral side of the telescopic inner formwork group 2, a first reserved door opening 23 is opened on one side of the telescopic inner formwork group 2, and a second reserved door opening 33 is opened on the side of the telescopic outer formwork group 3 close to the first reserved door opening 23, and the first reserved door opening 23 and the second reserved door opening 33 are of the same size; the sealing plate 4 is detachably mounted on the side walls of the first reserved door opening 23 and the second reserved door opening 33, that is, the telescopic inner formwork group 2, the telescopic outer formwork group 3 and the sealing plate 4 together enclose a grouting area 6 for making a unit prefabricated part 1, refer to Figure 2 The shape of the grouting area 6 is the same as that of the unit prefabricated part 1; the side wall of the telescopic outer formwork group 3 is provided with a second grouting hole 34 connected to the grouting area 6, and a plurality of second grouting holes 34 are provided. The second grouting holes 34 are detachably installed with rubber plugs 341. The staff can pour concrete slurry into the grouting area 6 through the second grouting holes 34. After the pouring of the concrete slurry is completed, the rubber plugs 341 are blocked in the second grouting holes 34.

[0026] Reference Figure 4 , a plurality of columns 51 are fixedly connected to the surface of the bottom plate 5, and the columns 51 extend vertically upward to the grouting area 6, referring to Figure 2The insertion groove 14 at the bottom of the unit prefabricated part 1 is made of a column 51 as a template. The column 51 in this embodiment is preferably a steel bar. The height of the telescopic inner template group 2 and the telescopic outer template group 3 are both adjustable, and the sealing plate 4 in this embodiment includes one group in a horizontal state and two groups in a vertical state. The two groups of sealing plates 4 in the vertical state are respectively fixedly installed on the side walls of the first reserved door opening 23 and the second reserved door opening 33 by bolts, and the sealing plates 4 in the horizontal state are fixedly installed on the top edges of the first reserved door opening 23 and the second reserved door opening 33 by bolts. When pre-adjusting the height of the telescopic inner template group 2 and the telescopic outer template group 3, it is necessary to first disassemble the sealing plate 4 to ensure the normal adjustment of the telescopic inner template group 2 and the telescopic outer template group 3.

[0027] Reference Figure 4 and Figure 5 The telescopic inner template group 2 includes a first template 21 and a second template 22, wherein the first template 21 is cylindrical, a first reserved door opening 23 is opened on the first template 21, and the cross-section of the second template 22 is U-shaped; the first template 21 is provided with a first sliding cavity 213 that runs through both ends in the vertical direction, and the second template 22 is slidably connected in the first sliding cavity 213 in the vertical direction, and the second template 22 and the cavity wall of the first sliding cavity 213 are provided with a snap-fit ​​strip group 7, and the sliding state of the first template 21 and the second template 22 can be changed by operating the snap-fit ​​strip group 7.

[0028] Reference Figure 5 and Figure 6 The clamping strip assembly 7 includes a first fixing plate 71, a second fixing plate 72, a movable ruler tooth 73 and a lifting assembly 74. The first fixing plate 71 is fixed to one side of the second template 22 by bolts, and the second fixing plate 72 is fixed to the cavity wall of the first sliding cavity 213 by bolts.

[0029] Reference Figure 6 and Figure 7 A working cavity 721 is provided on the side of the second fixed plate 72 facing the first fixed plate 71, and multiple groups of movable scale teeth 73 are provided. The multiple groups of movable scale teeth 73 are evenly arranged in the vertical direction and installed in the working cavity 721, and the movable scale teeth 73 are slidably connected to the cavity wall of the working cavity 721 along the inclined direction. A tooth groove 711 is provided on the side of the first fixed plate 71 facing the movable scale tooth 73. In this embodiment, an inclined guide groove 722 is provided on the cavity wall of the working cavity 721 for the movable scale tooth 73 to slide along the inclined direction. The movable scale tooth 73 is provided with a guide member 723 that slides in the guide groove 722. In the natural state of the lifting assembly 74, the sliding scale tooth is partially extended out of the working cavity 721 and embedded in the tooth groove 711.

[0030] Reference Figure 5 and Figure 7The lifting assembly 74 includes a lifting rod 741, a spring 742 and a connecting rod 743. The lifting rod 741 is slidably connected in the working cavity 721 along the vertical direction, and a rod hole 712 is provided at the top of the first fixed plate 71 for the lifting rod 741 to pass through. There are multiple groups of connecting rods 743, one end of each group of connecting rods 743 is rotatably connected to the side wall of the lifting rod 741, and the other end of the connecting rod 743 is rotatably connected to the side wall of the sliding ruler tooth, and the rotation axis of the connecting rod 743 is in a horizontal state; the spring 742 is fixedly connected to the bottom wall of the working cavity 721 along the vertical direction, and the top of the spring 742 is fixedly connected to the bottom end of the lifting rod 741. In the natural state of the spring 742, the movable ruler tooth 73 partially extends out of the working cavity 721 and is embedded in the tooth groove 711. When the height of the telescopic inner template group 2 is pre-adjusted, the lifting rod 741 is extracted in the vertical upward direction. At this time, the spring 742 is in a stretched state, and the movable ruler tooth 73 is separated in the direction away from the tooth groove 711. At the same time, downward pressure is applied to the second template 22, and the first template 21 can slide in the vertical upward direction, and the height of the telescopic inner template group 2 increases; the lifting rod 741 is released, and the lifting rod 741 is reset under the action of the spring 742, and the movable ruler tooth 73 is reset under the push of the lifting rod 741, and the movable ruler tooth 73 is embedded in the tooth groove 711, and the fixing work of the first template 21 can be completed. The lifting rod 741 in this embodiment is located in the rod wall of the working chamber 721 and a limit block 744 is set. The size of the limit block 744 is larger than the size of the rod hole 712, and when the lifting rod 741 is extracted and the movable scale tooth 73 and the tooth groove 711 are completely separated, the limit block 744 abuts against the inner wall of the working chamber 721. The setting of the limit block 744 reduces the deformation of the spring 742, thereby extending the service life of the spring 742.

[0031] Reference Figure 4 and Figure 5 The telescopic outer template group 3 includes a third template 31 and a fourth template 32, wherein the third template 31 is cylindrical, the second reserved door opening 33 is opened on the third template 31, the cross section of the fourth template 32 is U-shaped, the third template 31 is provided with a second sliding cavity 313 running through both ends in the vertical direction, the fourth template 32 is slidably connected in the second sliding cavity 313 in the vertical direction, and the fourth template 32 and the second sliding cavity 313 are provided with a clamping strip group 7 on the cavity wall. The first fixing plate 71 in the clamping strip group 7 is fixedly connected to one side of the fourth template 32 by bolts, and the second fixing plate 72 is fixedly connected to one side of the third template 31 by bolts.

[0032] Reference Figure 5 and Figure 7When the height of the telescopic outer template group 3 is pre-adjusted, the lifting rod 741 is extracted in the vertical upward direction. At this time, the spring 742 is in a stretched state, and the movable ruler tooth 73 is separated in the direction away from the tooth groove 711. At the same time, downward pressure is applied to the fourth template 32, and the third template 31 can slide in the vertical upward direction, and the height of the telescopic outer template group 3 increases.

[0033] Reference Figure 2 and Figure 8 By adjusting the clamping strip group 7, the first template 21 and the second template 22 are moved in the vertical upward direction. After moving to the preset height, the height of the grouting area 6 increases, thereby obtaining a non-standard height unit prefabricated part 1. In this embodiment, the clamping strip group 7 is preferably arranged in four groups, of which two groups of clamping strip groups 7 are arranged on the telescopic inner template group 2, and the two groups of clamping strip groups 7 are respectively located at the two end side walls in the width direction of the second template 22; the other two groups of clamping strip groups 7 are arranged on the telescopic outer template group 3, and the two groups of clamping strip groups 7 are respectively located at the two end side walls in the width direction of the fourth template 32. So that the first template 21 and the second template 22 can move more smoothly in the vertical upward direction.

[0034] Reference Fig. 9 and Fig.10 The first template 21 includes a first unit template 211 and a second unit template 212, the cross section of the first unit template 211 is U-shaped, the first reserved door opening 23 is opened on the side wall of the second unit template 212, the first sliding cavity 213 is opened in the first unit template 211, wherein the ends of the first unit template 211 and the second unit template 212 are connected by bolts to form a corner joint 214; the third template 31 includes a third unit template 311 and a fourth unit template 312, the cross section of the third unit template 311 is U-shaped, the second reserved door opening 33 is opened on the side wall of the third unit template 311, the second sliding cavity 313 is opened in the third unit template 311, wherein the ends of the third unit template 311 and the fourth unit template 312 are connected by bolts to form a corner joint 214. The first template 21 and the third template 31 in the present invention are installed in a splicing manner, so as to facilitate the disassembly and assembly of the prefabricated template. The first unit formwork 211 and the third unit formwork 311 are made of aluminum, and the second unit formwork 212 and the fourth unit formwork 312 are made of wood, so as to reduce the weight of the prefabricated formwork and facilitate the disassembly and assembly work of the staff and the change of the height of the telescopic inner formwork group 2 and the telescopic outer formwork group 3. The first unit formwork 211 and the third unit formwork 311 made of aluminum have good durability.

[0035] Reference Figure 4 and Figure 8The telescopic outer formwork group 3 and the telescopic inner formwork group 2 are respectively provided with lifting holes 35, and the connecting parts of the lifting equipment can be connected to the lifting holes 35 with the help of lifting equipment to complete the demoulding work. In the natural state of the telescopic outer formwork group 3 and the telescopic inner formwork group 2, the lifting holes 35 and the second grouting holes 34 are in a state of overlap, thereby reducing the hole positions on the telescopic inner formwork group 2 and the telescopic outer formwork group 3, and ensuring the strength of the telescopic inner formwork group 2 and the telescopic outer formwork group 3.

[0036] The present invention also provides an elevator shaft construction method, which is prefabricated using the above elevator shaft prefabricated template, and with reference to the figure, comprises the following steps: S1, connecting the first unit template 211 and the second unit template 212 together through the corner joint 214 to obtain the first template 21, and installing the second template 22 into the first sliding cavity 213 of the first template 21 to obtain the telescopic inner template group 2; The third unit template 311 and the fourth unit template 312 are connected together through the corner joint 214 to obtain the third template 31, and the fourth template 32 is installed in the second sliding cavity 313 of the third template 31 to obtain the telescopic outer template group 3; The sealing plate 4 is installed on the side walls of the first reserved door opening 23 and the second reserved door opening 33 opened in the telescopic inner template group 2 and the telescopic outer template group 3; Place the base plate 5 on the ground, and install the telescopic inner formwork group 2 and the telescopic outer formwork group 3 on the surface of the base plate 5 respectively; S2, placing the steel bar 13 in the grouting area 6 surrounded by the telescopic inner formwork group 2, the telescopic outer formwork group 3 and the sealing plate 4, and applying a release agent on the side wall of the grouting area 6, removing the rubber plug 341 installed in the second grouting hole 34, pouring concrete slurry into the grouting area 6 through the second grouting hole 34, and stopping the grouting when the concrete slurry in the grouting area 6 rises to the top of the grouting area 6, and installing the rubber plug 341 in the second grouting hole 34 to perform maintenance operations on the concrete slurry in the grouting area 6; S3. If the required unit prefabricated part 1 is of non-standard floor height, and the height of the unit prefabricated part 1 is higher than the height of the grouting area 6 of the prefabricated formwork in the natural state, after the concrete in the grouting area 6 is solidified, the sealing plate 4 is disassembled, and the clamping strip group 7 is respectively extracted in the vertical upward direction, and at the same time, the scaffold is pressed to the top of the second formwork 22 and the fourth formwork 32, and the first formwork 21 and the third formwork 31 are extracted in the vertical upward direction. After the first formwork 21 and the third formwork 31 slide to the preset height, concrete slurry is poured into the grouting area 6 through the second grouting hole 34, and the concrete slurry in the grouting area 6 is cured; S4, after the curing operation of the concrete slurry in the grouting area 6 is completed, the prefabricated formwork is disassembled to obtain the unit prefabricated part 1; S5. With the help of human labor, the staff transports the prefabricated unit parts 1 obtained in step S4 to the transfer device, and moves the transfer device to the floor to be constructed of the building by means of a crane, so that the prefabricated unit parts 1 located above are connected to the prefabricated unit parts 1 located below, until the construction of the entire elevator shaft is completed.

[0037] Reference Figure 2 and Fig.11 The transfer device includes a mobile device 8 and a carrying device 9, and the carrying device 9 is used to carry the mobile device 8. The mobile device 8 includes a mobile trolley 81, a clamping assembly, a hydraulic press 88 and a motor 89. The hydraulic press 88 and the motor 89 are fixedly installed on the mobile trolley 81. The mobile trolley 81 in this embodiment includes a vehicle plate and a wheel hub, and the wheel hub is rotatably arranged at the bottom of the vehicle plate; the clamping assembly includes a rotary joint group, a telescopic cylinder group and a clamping plate 87. The clamping assembly is used to clamp the unit prefabricated part 1, and the hydraulic press 88 and the motor 89 are used to control the movement of the telescopic cylinder group and the rotary joint. The mobile device 8 moves to the carrying device 9, and the carrying device 9 is moved to the construction floor of the building under the action of the crane.

[0038] Reference Fig.11 The rotary joint group includes a first rotary joint 85 and a second rotary joint 86. The first rotary joint 85 is fixedly mounted on the surface of the bottom plate 5 along the vertical direction, and the second rotary joint 86 is arranged on the telescopic cylinder group. In this embodiment, the first rotary joint 85 and the second rotary joint 86 are preferably hydraulic rotary joints.

[0039] Reference Figure 2 and Fig.11 , the telescopic cylinder group includes a first telescopic cylinder 82, a second telescopic cylinder 83 and a third telescopic cylinder 84. In this embodiment, the first telescopic cylinder 82, the second telescopic cylinder 83 and the third telescopic cylinder 84 are preferably hydraulic cylinders. The first telescopic cylinder 82 is fixedly installed on the surface of the mobile trolley 81 in the vertical direction, that is, the first telescopic cylinder 82 is telescopic in the vertical direction, and the second rotary joint 86 is fixedly connected to the telescopic end of the first telescopic cylinder 82; the second telescopic cylinder 83 is fixedly connected to the second rotary joint 86, and the rotation axis of the second rotary joint 86 coincides with the central axis of the second telescopic cylinder 83, that is, the second telescopic cylinder 83 is telescopic in the horizontal direction; the third telescopic cylinder 84 is provided with two groups, and the two groups of third telescopic cylinders 84 are fixedly connected to the telescopic end of the second telescopic cylinder 83, and the central axes of the two groups of third telescopic cylinders 84 coincide; the clamping plate 87 is provided with two groups, and the two groups of clamping plates 87 are respectively fixedly connected to the telescopic ends of the two groups of third telescopic cylinders 84, and the two groups of clamping plates 87 are used to clamp the unit preform 1. The clamping surface of the clamping plate 87 is provided with a shock absorbing plate 871 . The shock absorbing plate 871 in this embodiment is preferably made of rubber material to enhance the clamping stability of the unit preform 1 .

[0040] Reference Figure 2 and Fig.11 The clamping plate 87 moves toward or away from the unit preform 1 under the action of the second telescopic cylinder 83, and the clamping plate 87 rises or falls under the action of the first telescopic cylinder 82 to more conveniently lift the unit preform 1; the two groups of clamping plates 87 clamp the unit preform 1 under the action of the third telescopic cylinder 84; the first rotating joint 85 is used to change the pointing direction of the clamping plate 87, and the second rotating joint 86 is used to adjust the angle of the unit preform 1.

[0041] Reference Fig.11 The load-bearing device 9 includes a load-bearing plate 91, a panel 92 and a lifting ring 93. The lifting ring 93 is provided with multiple groups. In this embodiment, the lifting ring 93 is preferably provided with four groups. The four groups of lifting rings 93 are evenly distributed at the four end corners of the surface of the load-bearing plate 91. The lifting ring 93 is used to connect to the crane; the panel 92 is fixedly installed on the peripheral side of the load-bearing plate 91 in the vertical upward direction, and the panel 92 is provided with an opening for the mobile equipment 8 to enter and exit. The load-bearing plate 91 is rotatably connected with a rotating plate 911 at one end of the opening, and the rotation axis of the rotating plate 911 is in a horizontal state. After the load-bearing device 9 reaches the construction floor, the rotating plate 911 is flipped to a horizontal state. The rotating plate 911 is used to overlap the gap between the load-bearing plate 91 and the building, so that the mobile car 81 can smoothly enter the building. The rotating plate 911 and the panel 92 are detachably connected with bolts to change the state of the rotating plate 911.

[0042] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Elevator shaft prefabricated component, characterized in that: It comprises a plurality of groups of unit prefabricated parts (1) arranged in sequence along a vertical direction, wherein the unit prefabricated parts (1) are prefabricated in an integrated manner; The unit prefabricated component (1) is provided with an elevator shaft area (11) and an elevator entrance and exit (12); the elevator shaft area (11) is used to install the elevator, and the elevator shaft area (11) is in a connected state with the elevator entrance and exit (12); A steel bar (13) is arranged inside the unit prefabricated part (1), and the steel bar (13) is provided in a plurality of groups. The plurality of groups of steel bars (13) are arranged around the unit prefabricated part (1), and some of the steel bars (13) are in a state of extending out of the top of the unit prefabricated part (1). Two adjacent groups of the unit prefabricated parts (1) are connected by means of casing grouting.

2. The elevator shaft prefabricated component according to claim 1, characterized in that: The bottom of the unit prefabricated part (1) is provided with an insertion groove (14) for the reinforcement member (13) on the adjacent unit prefabricated part (1) to be embedded, and the side wall of the unit prefabricated part (1) is provided with a first grouting hole (15), and a plurality of groups of the first grouting holes (15) are provided, and each group of the insertion grooves (14) corresponds to and communicates with two groups of first grouting holes (15) distributed in an upper and lower state.

3. Elevator shaft prefabricated template, characterized in that: It is used to make the elevator shaft prefabricated parts as described in claims 1-2, include, A telescopic inner template group (2), the telescopic inner template group (2) being cylindrical, and a first reserved door opening (23) being provided on one side of the telescopic inner template group (2); A telescopic outer template group (3), the telescopic outer template group (3) is cylindrical, the telescopic outer template group (3) is sleeved on the circumference of the telescopic inner template group (2), and a second reserved door opening (33) is provided on a side of the telescopic outer template group (3) close to the first reserved door opening (23); A sealing plate (4), the sealing plate (4) being detachably arranged on the side walls of the first reserved door opening (23) and the second reserved door opening (33); the telescopic inner formwork group (2), the telescopic outer formwork group (3) and the sealing plate (4) together enclose a grouting area (6) for making a unit prefabricated component (1); the side wall of the telescopic outer formwork group (3) is provided with a second grouting hole (34) connected to the grouting area (6); a plurality of groups of the second grouting holes (34) are provided; and the second grouting holes (34) are detachably installed with a rubber plug (341); A bottom plate (5) is detachably mounted on the bottom ends of the telescopic inner formwork group (2) and the telescopic outer formwork group (3), and a plurality of groups of columns (51) extending vertically upward to the grouting area (6) are arranged on the surface of the bottom plate (5).

4. The elevator shaft prefabricated template according to claim 3, characterized in that: The telescopic inner template group (2) comprises a first template (21) and a second template (22); the first template (21) is cylindrical; the cross section of the second template (22) is U-shaped; the first template (21) is provided with a first sliding cavity (213) extending vertically to both ends; the second template (22) is slidably connected in the first sliding cavity (213); the cavity walls of the second template (22) and the first sliding cavity (213) are provided with a clamping strip group (7); The telescopic outer template group (3) comprises a third template (31) and a fourth template (32); the third template (31) is cylindrical; the cross section of the fourth template (32) is U-shaped; the third template (31) is provided with a second sliding cavity (313) penetrating through both ends in a vertical direction; the fourth template (32) is slidably connected in the second sliding cavity (313); and the cavity walls of the fourth template (32) and the second sliding cavity (313) are provided with a clamping strip group (7).

5. The elevator shaft prefabricated template according to claim 4, characterized in that: The clamping strip assembly (7) comprises a first fixing plate (71), a second fixing plate (72), a movable ruler tooth (73) and a lifting assembly (74); The first fixed plate (71) is fixedly arranged on the end walls of the second template (22) and the fourth template (32), respectively; the second fixed plate (72) is fixedly arranged on the cavity walls of the first sliding cavity (213) and the second sliding cavity (313), respectively; the second fixed plate (72) is provided with a working cavity (721) on one side facing the first fixed plate (71); a plurality of groups of movable ruler teeth (73) are provided, and the plurality of groups of movable ruler teeth (73) are evenly arranged in the working cavity (721) along the vertical direction; the movable ruler teeth (73) are slidably connected to the cavity wall of the working cavity (721) along the inclined direction; and the first fixed plate (71) is provided with a tooth groove (711) matched with the movable ruler teeth (73).

6. The elevator shaft prefabricated template according to claim 5, characterized in that: The lifting assembly (74) includes a lifting rod (741), a spring (742) and a connecting rod (743); the lifting rod (741) is slidably connected to the working cavity (721) in the vertical direction; a rod hole (712) for the lifting rod (741) to pass through is provided at the top of the first fixed plate (71); a plurality of connecting rods (743) are provided; one end of the connecting rod (743) is rotatably connected to the side wall of the lifting rod (741); the other end of the connecting rod (743) is rotatably connected to the side wall of the movable scale tooth (73); the spring (742) is fixedly arranged on the bottom wall of the working cavity (721) in the vertical direction; the top end of the spring (742) is fixedly arranged on the bottom end of the lifting rod (741); in the natural state of the spring (742), the movable scale tooth (73) partially extends out of the working cavity (721) and is embedded in the tooth groove (711).

7. The elevator shaft prefabricated template according to claim 4, characterized in that: The first template (21) comprises a first unit template (211) and a second unit template (212); the cross section of the first unit template (211) is U-shaped; the first reserved door opening (23) is opened on the side wall of the second unit template (212); the first sliding cavity (213) is opened in the first unit template (211); and ends of the first unit template (211) and the second unit template (212) are connected to a corner joint (214) by bolts; The third template (31) comprises a third unit template (311) and a fourth unit template (312); the cross section of the third unit template (311) is U-shaped; the second reserved door opening (33) is opened on the side wall of the third unit template (311); the second sliding cavity (313) is opened in the third unit template (311); and the ends of the third unit template (311) and the fourth unit template (312) are connected to a corner joint (214) by bolts.

8. The elevator shaft prefabricated template according to claim 4, characterized in that: The first unit template (211) and the third unit template (311) are made of aluminum; The second unit formwork (212) and the fourth unit formwork (312) are wooden products; The telescopic outer formwork group (3) and the telescopic inner formwork group (2) are respectively provided with a lifting hole (35); in the natural state of the telescopic outer formwork group (3) and the telescopic inner formwork group (2), the lifting hole (35) and the second grouting hole (34) are in an overlapping state.

9. An elevator shaft construction method, characterized in that: The prefabrication of the elevator shaft prefabricated template according to any one of claims 2 to 8 comprises the following steps: S1, connecting the first unit template (211) and the second unit template (212) together via a corner joint (214) to obtain a first template (21), and installing the second template (22) into the first sliding cavity (213) of the first template (21) to obtain a telescopic inner template group (2); The third unit template (311) and the fourth unit template (312) are connected together via a corner joint (214) to obtain a third template (31); the fourth template (32) is installed in the second sliding cavity (313) of the third template (31) to obtain a telescopic outer template assembly (3); Installing the sealing plate (4) on the side walls of the first reserved door opening (23) and the second reserved door opening (33) opened in the telescopic inner template group (2) and the telescopic outer template group (3); Placing a base plate (5) on the ground, and installing a telescopic inner formwork group (2) and a telescopic outer formwork group (3) on the surface of the base plate (5) respectively; S2, placing steel bars (13) in a grouting area (6) enclosed by the telescopic inner formwork group (2), the telescopic outer formwork group (3) and the sealing plate (4), applying a release agent to the side wall of the grouting area (6), removing the rubber plug (341) installed in the second grouting hole (34), pouring concrete slurry into the grouting area (6) through the second grouting hole (34), stopping grouting when the concrete slurry in the grouting area (6) rises to the top of the grouting area (6), and installing the rubber plug (341) in the second grouting hole (34) to perform a curing operation on the concrete slurry in the grouting area (6); S3. If the required unit prefabricated component (1) has a non-standard floor height, and the height of the unit prefabricated component (1) is higher than the height of the grouting area (6) of the prefabricated formwork in the natural state, after the concrete in the grouting area (6) is solidified, the sealing plate (4) is first disassembled, and the clamping strip groups (7) are respectively extracted in the vertical upward direction, and at the same time, the scaffold is pressed to the top of the second formwork (22) and the fourth formwork (32), and the first formwork (21) and the third formwork (31) are extracted in the vertical upward direction. After the first formwork (21) and the third formwork (31) slide to a preset height, concrete slurry is poured into the grouting area (6) through the second grouting hole (34), and the concrete slurry in the grouting area (6) is cured; S4, after the curing operation of the concrete slurry in the grouting area (6) is completed, the prefabricated formwork is disassembled to obtain the unit prefabricated part (1); S5. With the help of human assistance, the staff transports the unit prefabricated parts (1) obtained in step S4 to the transfer device, and moves the transfer device to the floor to be constructed of the building by means of a crane, so that the unit prefabricated parts (1) located above are connected to the unit prefabricated parts (1) located below, until the construction of the entire elevator shaft is completed.

10. The elevator shaft construction method according to claim 9, characterized in that: The transfer device in step S5 comprises a mobile device (8) and a carrying device (9); The mobile device (8) comprises a mobile trolley (81) and a clamping assembly; the clamping assembly comprises a telescopic cylinder group, a rotary joint group, a clamping plate (87), a hydraulic press (88) and a motor (89); the hydraulic press (88) and the motor (89) are arranged on the mobile trolley (81); the hydraulic press (88) and the motor (89) are used to control the movement of the telescopic cylinder group and the rotary joint; The rotary joint group comprises a first rotary joint (85) and a second rotary joint (86), wherein the first rotary joint (85) is vertically arranged on the surface of the base plate (5), and the second rotary joint (86) is arranged on the telescopic cylinder group; The telescopic cylinder group comprises a first telescopic cylinder (82), a second telescopic cylinder (83) and a third telescopic cylinder (84); the first telescopic cylinder (82) is arranged on the surface of the moving vehicle (81) along the vertical direction; the second rotating joint (86) is arranged at the telescopic end of the first telescopic cylinder (82); the second telescopic cylinder (83) is arranged on the second rotating joint (86); the rotation axis of the second rotating joint (86) coincides with the central axis of the second telescopic cylinder (83); two groups of the third telescopic cylinder (84) are arranged; the two groups of the third telescopic cylinder (84) are arranged at the telescopic end of the second telescopic cylinder (83); the central axes of the two groups of the third telescopic cylinder (84) coincide with each other; Two groups of the clamping plates (87) are provided, and the two groups of the clamping plates (87) are respectively provided at the telescopic ends of the two groups of the third telescopic cylinders (84); the clamping surfaces of the clamping plates (87) are provided with shock absorbing plates (871); The bearing device (9) is used to bear the mobile device (8), and the bearing device (9) comprises a bearing plate (91), a surrounding plate (92) and a lifting ring (93), wherein the lifting ring (93) is provided in a plurality of groups, and the plurality of groups of the lifting ring (93) are evenly distributed on the surface of the bearing plate (91), the surrounding plate (92) is provided on the peripheral side of the bearing plate (91) in a vertically upward direction, the surrounding plate (92) is provided with an opening for the mobile device (8) to enter and exit, and the bearing plate (91) is rotatably connected to a rotating plate (911) at one end of the opening, and the rotating axis of the rotating plate (911) is in a horizontal state.

Images