A method for manufacturing an arc staircase and its installation process

Abstract

The present invention relates to a method for fabricating and installing a circular arc staircase, comprising a floor pretreatment device for quickly pre-smoothing the floor; at least ten tread assemblies for quickly constructing a stepped staircase; a central column for quickly mounting the tread assemblies; and a circular arc staircase quick-erecting auxiliary device for assisting in the construction of the central column. For cantilevered circular arc staircases, this invention can improve on-site construction efficiency and reduce costs.

Description

Technical Field

[0001] The present invention relates to the field of arc staircase construction equipment and technology, and in particular to a method for manufacturing an arc staircase and an installation technology thereof. Background Art

[0002] Arc-shaped spiral staircases have long been popular in office buildings, mezzanines, and residential buildings with limited floors due to their streamlined structure, aesthetics, elegance, and space-saving advantages. However, common center-column spiral staircases only bear load on one side, making them less capable than conventional staircases. Furthermore, their fan-shaped platforms and treads make on-site construction more challenging. Therefore, improving the load-bearing capacity and construction efficiency of this single-sided, arc-shaped spiral staircase has become a hot topic of research.

[0003] Patent CN202120362597.X discloses a spiral staircase that increases its load-bearing capacity by adding columns, but the installation efficiency is reduced and the cost is increased. In contrast, patent CN201811374740.6 discloses an indoor super-large single-beam cantilevered spiral steel staircase and its manufacturing method. The embedded parts connecting the rotating steel staircase to the main structure increase the load-bearing capacity of the steps, but this on-site embedding and pouring method obviously also has the problem of high cost and current construction difficulty. Similarly, patents CN201811549772.5 and CN201822132915.4 also adopt pre-embedded and pouring solutions. In contrast, patent CN202011047027 discloses a method for manufacturing a circular arc staircase and its installation process, which uses prefabricated aluminum alloy new materials to realize a new method for manufacturing circular arc stairs, but because it requires processes such as mold opening and oxidation, there is a problem of large initial investment. In addition, patent CN202210026503.0 discloses a construction method for large-span cast-in-place special-shaped stairs. The construction is carried out through the traditional process of setting up upper and lower formwork, hanging steel cage, setting side formwork, and pouring in sequence, and there is no innovation in new structures and processes.

[0004] During the development of this invention, the inventors discovered the following problems with the prior art: The aforementioned technical approach primarily innovates on a limited basis within conventional staircase construction methods, but fails to specifically design a corresponding construction device based on the structural characteristics of single-cantilever circular staircases. This leads to issues such as long on-site construction periods and high costs. Summary of the Invention

[0005] Therefore, it is necessary to provide a method for manufacturing an arc staircase and an installation process thereof, so as to solve the technical problems of rapid on-site construction and cost reduction.

[0006] To achieve the above objectives, the inventor provides a method for manufacturing a circular arc staircase and an installation process thereof.

[0007] As an embodiment of the present invention, it is characterized in that it includes

[0008] Ground pre-treatment device to achieve rapid pre-grinding of the ground;

[0009] At least 10 tread components for quickly building a staircase;

[0010] center column, a quick-install base for the pedal assembly;

[0011] The arc staircase quick erection auxiliary device realizes the auxiliary erection of the center column.

[0012] As an embodiment of the present invention, it is characterized in that the ground pretreatment device includes a grinding motor, a clutch, a speed sensor, a sun gear shaft, a ring gear, a planetary carrier, at least three planetary gears, a first Forma caster set, a first level, a grinding head and a frame, the clutch is arranged between the rotor of the grinding motor and the sun gear shaft, the ring gear is fixedly connected to the frame, the planetary carrier is fixedly connected to the grinding head, the clutch is a normally closed clutch, the first level is fixed above the frame, and the first Forma caster set is arranged below the frame;

[0013] The power of the grinding motor is transmitted to the planet carrier through the sun gear shaft and the fixed ring gear. The speed sensor is used to collect the speed of the driven plate of the clutch. The driven plate of the clutch is key-connected to the sun gear shaft and has the same speed.

[0014] When the grinding motor is powered on, if the speed collected by the speed sensor is 0 for 1 second, it is determined that the grinding motor is stalled. At this time, the clutch enters the "open" state, cutting off the power connection between the grinding motor and the grinding head.

[0015] As an embodiment of the present invention, it is characterized in that the arc stair quick-erecting auxiliary device includes a turntable motor, a small gear, a large gear plate, a tray assembly, three clamping assemblies, an adjustment bracket group, a second level, a second Forma caster group and a controller, the tray assembly includes a tray and at least three sets of balls, the large gear plate is provided with a raceway matching the balls of the tray assembly, the three clamping assemblies are symmetrically distributed on the large gear plate and then fixed to the large gear plate, and each of the clamping assemblies includes a clamping motor, a screw rod and a sliding chuck;

[0016] The controller is used to control the forward or reverse rotation of the turntable motor and the clamping or loosening of the three clamping components;

[0017] The three clamping assemblies are used to clamp the central column, and the turntable motor drives the large gear plate to rotate through the small gear, so that the clamped central column rotates around the rotation center of the large gear plate.

[0018] As an embodiment of the present invention, it is characterized in that the pedal assembly includes a fixing nut assembly, a U-shaped movable frame, a T-shaped bracket, a fastening assembly, and a fan-shaped panel;

[0019] The two ends of the U-shaped movable frame are provided with threads. After the U-shaped movable frame surrounds the central column, it is fixed on the T-shaped bracket in cooperation with the fixing nut assembly. The contact end of the T-shaped bracket and the central column is processed into an arc surface with the same diameter as the central column. The fan-shaped panel is fixed on the T-shaped bracket through the fastening assembly.

[0020] As an embodiment of the present invention, it is characterized in that it includes the following steps:

[0021] S10, the fan-shaped panels are cut and marked by laser according to the design drawings, and are fixedly mounted on the T-shaped brackets in the pedal assembly and are ready for use;

[0022] S20, the ground pretreatment device performs a grinding operation on the ground where the central column is installed to provide basic conditions for the installation of the central column;

[0023] S30, assembling the arc stair quick erection auxiliary device on the treated ground, placing the central column in the empty space, and clamping and fixing the central column using the three clamping assemblies;

[0024] S40, installing the bottommost first layer of the pedal assembly on the central column;

[0025] S50, using the turntable motor in the arc stair quick erection auxiliary device to continuously rotate and adjust the central column and the first floor tread assembly thereon to the designed starting position;

[0026] S60, fixing and installing the pedal assemblies from the second layer to the last layer in sequence at different heights of the central column according to the sequence of the marked fan-shaped panels;

[0027] S70: dismantling the arc stair quick erection auxiliary device.

[0028] The above-mentioned records related to the content of the invention are only an overview of the technical solution of this application. In order to enable ordinary technicians in this field to understand the technical solution of this application more clearly, and then implement it according to the text of the specification and the contents recorded in the drawings, and to make the above-mentioned purposes and other purposes, features and advantages of this application easier to understand, the following is an explanation in combination with the specific implementation methods and drawings of this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, characteristics and effects of the specific embodiments of this application and other related contents, and are not to be considered as limiting this application.

[0030] In the drawings of the specification:

[0031] Figure 1 This is a schematic diagram of the composition of a quick-erecting auxiliary device for arc stairs according to one embodiment of the present application;

[0032] Figure 2 This is a schematic diagram of the composition of a ground pretreatment device according to one embodiment of the present application;

[0033] Figure 3 This is a schematic diagram of a pedal assembly according to one embodiment of the present application;

[0034] Figure 4 This is a schematic diagram of an arc staircase structure according to an embodiment of the present application;

[0035] Figure 5 This is a schematic diagram of the three clamping components according to an embodiment of the present application;

[0036] Figure 6 This is a schematic diagram of a tray assembly according to an embodiment of the present application.

[0037] The reference numerals in the above drawings are described as follows:

[0038] 101. Grinding motor; 102. Grinding motor bracket; 103. Clutch; 104. Speed ​​sensor; 105. Sun gear shaft; 106. Ring gear; 107. Planetary carrier; 108. Frame; 109. First Forma caster assembly; 110. Planetary gear; 111. Level; 112. Grinding head; 201. Turntable motor; 202. Pinion; 203. Large gear plate; 204. Tray assembly; 205. Clamping assembly; 205A , clamping motor; 205B, screw rod; 205C, sliding chuck; 206, adjustment bracket assembly; 207, second Foma caster assembly; 208, second level; 209, controller; 300, center column; 301, fixing nut assembly; 302, U-shaped movable frame; 303, T-shaped bracket; 304, fan-shaped panel; 305, fastening assembly; 3A, first layer pedal assembly; 3B, second layer pedal assembly; 3N, Nth layer pedal assembly. DETAILED DESCRIPTION

[0039] In order to explain in detail the possible application scenarios, technical principles, specific solutions that can be implemented, and the purpose and effects of this application, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of this application and are therefore only examples and are not intended to limit the scope of protection of this application.

[0040] References to "embodiments" herein mean that the specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the word "embodiment" in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the various technical features mentioned in the embodiments can be combined in any manner to form a corresponding implementable technical solution.

[0041] Unless otherwise defined, the technical terms used herein have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms herein is only for describing specific embodiments and is not intended to limit this application.

[0042] In the description of this application, the term "and / or" is used to describe a logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and both A and B exist. In addition, the character " / " in this document generally indicates that the objects before and after are in a logical "or" relationship.

[0043] In this application, terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantity, priority or sequence relationship between these entities or operations.

[0044] Without further limitations, in this application, the words "include", "comprise", "have" or other similar expressions used in the sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those defined elements, but also other elements not explicitly listed, or elements inherent to such process, method or product.

[0045] Consistent with the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceed" are understood to exclude the number itself; expressions such as "above," "below," and "within" are understood to include the number itself. Furthermore, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this manner, such as "multiple groups," "multiple times," etc., unless otherwise specifically defined.

[0046] In the description of the embodiments of the present application, the space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, it should not be understood as a limitation on the embodiments of the present application.

[0047] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms "installed", "connected", "connected", "fixed", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art of the present application, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0048] The present invention aims to improve the on-site installation efficiency and reduce the investment cost of a cantilever beam-type arc staircase under the existing mainstream construction technology scheme of formwork erection, pre-embedded steel bars and concrete pouring, and provides a method for manufacturing an arc staircase and an installation process thereof, effectively solving the problems existing in the prior art.

[0049] To achieve the above purpose, the inventor provides a method for manufacturing a circular arc staircase and its installation process. Figures 1 to 6 As an embodiment of the present invention, the manufacturing method and installation process of a circular arc staircase are characterized by including a ground pretreatment device to realize rapid pre-grinding of the ground; at least 10 pedal assemblies for quickly building a hierarchical staircase; a central column 300, a base for quickly installing the pedal assembly; and a circular arc staircase quick-erecting auxiliary device to realize auxiliary construction of the central column.

[0050] As an embodiment of the present invention, it is characterized in that, referring to Figure 2 The ground preparation device includes a grinding motor 101, a clutch 103, a speed sensor 104, a sun gear shaft 105, a ring gear 106, a planetary carrier 107, at least three planetary gears 110, a first Forma caster set 109, a first level 111, a grinding head 112, and a frame 108. The clutch 103 is disposed between the rotor of the grinding motor 101 and the sun gear shaft 105. The ring gear 106 is fixedly connected to the frame 108. The planetary carrier 107 is fixedly connected to the grinding head 112. The clutch 103 is a normally closed clutch. The first level 111 is fixed above the frame 108. The first Forma caster set 109 is disposed below the frame 108. In this way, the power of the grinding motor 101 is transmitted to the planetary carrier 107 through the sun gear shaft 105 and the fixed ring gear 106, and then to the grinding head 112 fixedly connected to the planetary carrier 107. In addition, the speed sensor 104 is used to collect the speed of the driven plate of the clutch 103 . The driven plate of the clutch 103 is key-connected to the sun gear shaft 105 and has the same speed. That is, the speed sensor 104 can collect the real-time speed of the sun gear shaft 105 .

[0051] As an embodiment of the present invention, it is characterized in that, referring to Figure 1 The arc stair quick erection auxiliary device includes a turntable motor 201, a small gear 202, a large gear plate 203, a tray assembly 204, three clamping assemblies 205, an adjustment bracket assembly 206, a second level 208, a second Foma caster assembly 207 and a controller 209. Figure 6 The tray assembly 204 includes a tray 204A and at least three sets of balls 204B. The large gear plate 203 is provided with a raceway that matches the balls 204B of the tray assembly 204. The three clamping assemblies 204 are symmetrically distributed on the large gear plate 203 and then fixed on the large gear plate 203. Figure 5 Each of the clamping assemblies 205 includes a clamping motor 205A, a screw rod 205B and a sliding chuck 205C.

[0052] As an embodiment of the present invention, it is characterized in that, referring to Figure 3The pedal assembly includes a fixing nut assembly 301, a U-shaped movable frame 302, a T-shaped bracket 303, a fastening assembly 305, and a fan-shaped panel 304. The two ends of the U-shaped movable frame 302 are provided with threads. After the U-shaped movable frame 302 surrounds the central column 300, it cooperates with the fixing nut assembly 301 to be fixed on the T-shaped bracket. The contact end of the T-shaped bracket 303 and the central column 300 is processed into an arc surface with the same diameter as the central column 300, thereby increasing the contact area between the two and improving the static friction. In addition, the fan-shaped panel 304 is fixed to the T-shaped bracket 303 by the fastening assembly 305. In this way, the U-shaped movable frame 302 and the T-shaped bracket 303 can be fastened to the central column 300 through the fixing nut assembly 301. Furthermore, although the specifications of the fan-shaped panels 304 of the arc spiral staircase are not consistent, the T-shaped brackets 303 fixed to the fan-shaped panels 304 can be of uniform specifications, which is conducive to mass production manufacturing processes such as die forging, thereby reducing unit costs.

[0053] The following describes the working principle of a method for manufacturing a circular arc staircase and its installation process according to the present invention. As an embodiment of the present invention, it is characterized in that it includes the following steps:

[0054] S10, the fan-shaped panel 304 is cut and marked by laser according to the design drawing, and is fixedly installed on the T-shaped bracket 303 in the pedal assembly and is ready for use. Figure 4 , the fan-shaped panels 304 of all arc stairs can be drawn out in the design software, and then laser cutting can be performed. Marking can lay the foundation for subsequent construction.

[0055] S20, the ground pretreatment device performs a grinding operation on the ground where the central column 300 is installed, providing basic conditions for the installation of the central column 300. First, refer to Figure 1 , move the ground pretreatment device to the location where the arc staircase is built, and continuously adjust the first Forma wheel assembly 109 to keep the top surface of the frame 108 of the ground pretreatment device parallel to the ground through the feedback information of the first level 111. Then, the grinding head 112 is driven to operate by the grinding motor 101 after deceleration and torque increase through the planetary gear system. When the grinding motor 101 is powered on, if the speed collected by the speed sensor is 0 for 1 second, it is determined that the grinding motor 101 is stalled. At this time, the clutch enters the "open" state, cutting off the power connection between the grinding motor 101 and the grinding head. In this way, it can be ensured that the grinding motor 101 will not be stalled for a long time and burned. In this way, the treated concrete floor can provide an installation basis for the subsequent installation of the center column 300.

[0056] S30, assembling the arc stair quick erection auxiliary device on the treated ground, placing the central column 300 in the empty space, and clamping and fixing the central column 300 using the three clamping assemblies 205;

[0057] S40, install the bottom first layer of the pedal assembly 3A on the center column, refer to Figure 4 ;

[0058] S50, through the turntable motor 201 in the arc stair quick-erecting auxiliary device, continuously rotate and adjust the center column 300 and the first-layer pedal assembly 3A thereon to the designed starting position. In terms of design, the controller 209 is used to control the forward or reverse rotation of the turntable motor 201, as well as the clamping or loosening action of the three clamping assemblies 205. The three clamping assemblies are used to clamp the center column 300, and the turntable motor 302 drives the large gear disk 203 to rotate through the small gear 202, so that the clamped center column 300 rotates around the rotation center of the large gear disk 203. In this way, the installers can now adjust the pedal assemblies of the first layer on site, or even other different layers, to the appropriate working position according to needs, which facilitates on-site construction.

[0059] S60, at different heights of the central column 300, in accordance with the marked order of the fan-shaped panels 304, the second to the last layer of the pedal assembly are fixedly installed in sequence, see Figure 1 and Figure 4 ;

[0060] S70: Remove the arc stair quick erection auxiliary device, and finally confirm that all mounting bolts are tightened again. In this way, by constructing the arc staircase with cantilever beams on site and coordinating the construction of other parts, the staircase quick erection project can be completed at a low cost.

[0061] In this embodiment, the power mechanism or power unit includes, but is not limited to, an engine, a motor, a pneumatic tool, a hydraulic pump, and the like. The power unit also includes direct power sources and indirect power sources. Direct power sources, such as engines and motors, can provide their own power, while indirect power sources include air cylinders and hydraulic cylinders. The power mechanism or power unit can drive the linear reciprocating motion of the actuator through the coordination of gears and racks, the coordination of sliders and guideways, and the coordination of screws and nuts.

[0062] Transmission mechanisms or transmission units include speed reducers, gearboxes, worm gear mechanisms, connecting rod mechanisms, compound mechanisms, etc. Actuators or actuators include but are not limited to compression mechanisms, rotation mechanisms, swing mechanisms, vibration mechanisms, lifting mechanisms, cutting mechanisms, etc.

[0063] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection of the present invention. Therefore, based on the innovative concept of the present invention, changes and modifications to the embodiments described herein, or equivalent structural or equivalent process transformations made using the contents of the present invention's specification and drawings, and direct or indirect application of the above technical solutions to other related technical fields, are all included in the scope of patent protection of the present invention.

Claims

1. A process for installing a circular arc staircase, characterized in that: include: Ground pre-treatment device to achieve rapid pre-grinding of the ground; At least 10 tread components for quickly building a staircase; center column, a quick-install base for the pedal assembly; The arc staircase quick erection auxiliary device can assist in the erection of the central column; The ground pretreatment device includes a grinding motor, a clutch, a speed sensor, a sun gear shaft, a ring gear, a planetary carrier, at least three planetary gears, a first Forma caster set, a first level, a grinding head and a frame, wherein the speed sensor collects the real-time speed of the sun gear shaft; The ground preparation device is moved to the location where the arc staircase is constructed. The first Forma wheel assembly is adjusted to keep the top surface of the frame of the ground preparation device parallel to the ground using feedback information from the first level. The grinding motor drives the grinding head to operate after deceleration and torque increase through the planetary gear system. When the grinding motor is powered on, if the speed collected by the speed sensor is continuously 0 for 1 second, it is determined that the grinding motor is stalled. At this time, the clutch enters a disconnected state, cutting off the power connection between the grinding motor and the grinding head. The arc stair quick erection auxiliary device includes a turntable motor, a small gear, a large gear plate, a tray assembly, three clamping assemblies, an adjustment bracket group, a second level, a second Forma caster group and a controller. The tray assembly includes a tray and at least three sets of balls. The large gear plate is provided with a raceway matching the balls of the tray assembly. The three clamping assemblies are symmetrically distributed on the large gear plate and then fixed to the large gear plate. Each of the clamping assemblies includes a clamping motor, a screw rod and a sliding chuck. The controller is used to control the forward or reverse rotation of the turntable motor and the clamping or loosening action of the three clamping assemblies. The three clamping assemblies are used to clamp the center column. The turntable motor drives the large gear plate to rotate through the small gear, thereby causing the clamped center column to rotate around the rotation center of the large gear plate. The installation process includes the following steps: S10, the fan-shaped panels are cut and marked by laser according to the design drawings, and are fixedly installed on the T-shaped brackets in the pedal assembly and are ready for use; S20, the ground pretreatment device performs a grinding operation on the ground where the central column is installed to provide basic conditions for the installation of the central column; S30, assembling the arc stair quick erection auxiliary device on the treated ground, placing the central column in the empty space, and clamping and fixing the central column using the three clamping assemblies; S40, installing the bottommost first layer of the pedal assembly on the central column; S50, using the turntable motor in the arc stair quick erection auxiliary device to continuously rotate and adjust the central column and the first floor tread assembly thereon to the designed starting position; S60, fixing and installing the pedal assemblies from the second layer to the last layer in sequence at different heights of the central column according to the sequence of the marked fan-shaped panels; S70: dismantling the arc stair quick erection auxiliary device.

2. The installation process of a circular arc staircase according to claim 1, characterized in that: The clutch is arranged between the rotor of the grinding motor and the sun gear shaft, the ring gear is fixedly connected to the frame, the planetary carrier is fixedly connected to the grinding head, the clutch is a normally closed clutch, the first spirit level is fixed above the frame, and the first Forma caster set is arranged below the frame. The power of the grinding motor is transmitted to the planetary carrier through the sun gear shaft and the fixed ring gear, and then to the grinding head fixedly connected to the planetary carrier. The speed sensor is used to collect the speed of the driven plate of the clutch. The driven plate of the clutch is key-connected to the sun gear shaft and has the same speed.

3. The installation process of a circular arc staircase according to claim 1, characterized in that: The pedal assembly includes a fixing nut assembly, a U-shaped movable frame, a T-shaped bracket, a fastening assembly, and a fan-shaped panel; The two ends of the U-shaped movable frame are provided with threads. After the U-shaped movable frame surrounds the central column, it is fixed on the T-shaped bracket in cooperation with the fixing nut assembly. The contact end of the T-shaped bracket and the central column is processed into an arc surface with the same diameter as the central column. The fan-shaped panel is fixed on the T-shaped bracket through the fastening assembly.

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