Elevator shaft inner barrel angle formwork telescopic device

Abstract

The utility model discloses an elevator shaft inner barrel corner formwork telescopic device which comprises four flat formworks parallel to the side back of an elevator shaft, a corner column is arranged between every two flat formworks which are vertically and adjacently arranged, a clamping sliding formwork is vertically arranged on each corner column, a plurality of quadrilateral pulling plate mechanisms are arranged on the clamping sliding formworks at equal intervals, and the quadrilateral pulling plate mechanisms are connected with the four flat formworks. The quadrilateral pulling plate mechanisms located on the same clamping sliding formwork are jointly provided with pulling rod shafts, the pulling rod shafts drive the quadrilateral pulling plate mechanisms to contract and stretch, and the upper end of each pulling rod shaft is sleeved with a speed wrench. The device is easy and convenient to install, saves materials, is high in repeated utilization rate, does not need complex training, is easy to accept by operators, and is beneficial to popularization.

Description

TECHNICAL FIELD

[0001] The utility model relates to building construction technical field especially relates to a elevator shaft inner tube angle mould telescoping device. BACKGROUND

[0002] The building engineering elevator shaft is generally cast-in-place reinforced concrete cylinder structure, and in the structural construction, the inner frame is generally erected from the cylinder bottom and the operation platform is laid layer by layer, and the formwork is assembled and disassembled in the cylinder. Because the shaft space is narrow, whether wood mould or aluminium mould is used, assembling is time-consuming and laborious, and quality is difficult to control. Defects such as concrete misalignment and deformation caused by formwork installation occur from time to time. It is particularly difficult to disassemble the formwork because the formwork is continuously closed around the shaft. The integral assembling and disassembling of the elevator shaft formwork is urgent to be solved. SUMMARY

[0003] The utility model discloses a elevator shaft inner tube angle mould telescoping device.

[0004] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A kind of elevator shaft inner tube angle mould telescoping device, including four parallel to the four flat moulds of elevator shaft side back, two The flat moulds vertically adjacent are commonly provided with angle column between, vertically arranged on each angle column is clamped sliding formwork, several quadrilateral pull plate mechanisms are equidistantly arranged on the clamped sliding formwork, quadrilateral pull plate mechanism on the same clamped sliding formwork is commonly provided with pull rod shaft, and pull rod shaft drives quadrilateral pull plate mechanism to contract and expand, and the upper end of each pull rod shaft is equipped with quick wrench.

[0006] Preferably, several symmetric screw threads are equidistantly arranged on each pull rod shaft, and each quadrilateral pull plate mechanism is arranged on symmetric screw thread, and each symmetric screw thread includes two symmetrically arranged screw threads, and the thread directions of the two screw threads are opposite.

[0007] Preferably, each quadrilateral pull plate mechanism includes symmetrically arranged positioning frame, and the positioning frame is sleeved on the non-threaded portion of pull rod shaft, each screw thread is threadedly connected with moving frame, each moving frame is symmetrically rotatably connected with two rotating frames, and the two rotating frames on the same side are rotatably connected with connecting frame at the end away from moving frame.

[0008] Preferably, the positioning frame is provided with mounting piece, and the mounting piece is slidably connected on the clamped sliding formwork.

[0009] Compared with the prior art, the utility model has the beneficial effects that:

[0010] 1. Through the cooperation of the pull rod shaft and the quadrilateral pull plate mechanism, the stretching and contraction of the formwork can be quickly and accurately realized, which greatly shortens the time of installation and removal of the elevator shaft formwork, improves the construction efficiency, compared with the traditional fixed formwork or complex stretching device, the operator only needs to rotate the quick wrench, and the stretching and contraction action of the formwork can be easily completed, and the complexity and labor intensity of manual operation are reduced.

[0011] 2. The structural design of the device makes the formwork better maintain its integrity and stability during the contraction process, reduces the damage of the formwork caused by frequent disassembly and installation, the formwork can be repeatedly used, the construction cost is reduced, the stable support of the retractable column and the support base secondary beam and the reasonable connection between the parts can effectively avoid the deformation and damage of the formwork during use, and prolong the service life.

[0012] 3. The device can make the formwork closely fit, prevent concrete leakage, ensure the flatness and perpendicularity of the elevator shaft wall, thereby improving the overall quality of the concrete structure, the quadrilateral pull plate mechanism can make the formwork parts bear force uniformly when stretching the formwork, avoid gaps, ensure that the concrete can be formed according to the design requirements during pouring, and reduce the workload of later repair and modification.

[0013] 4. The device uses a direct and intuitive way of operating the pull rod shaft through the quick wrench, so that even ordinary construction workers can quickly master the operation method, reduce the training cost and human error in the construction process, and be beneficial to improve the overall construction level and stability of the construction quality of the construction team.

[0014] 5. Since the size and shape of the actual elevator shaft can be flexibly adjusted, the device can adapt to different specifications of elevator shaft construction projects. Whether it is a small residential elevator shaft or a large commercial building elevator shaft, through adjusting the stretching degree of the retractable column and the action of the quadrilateral pull plate mechanism, the precise adaptation of the formwork can be realized, the universality and applicability of the device are improved, and more convenience is provided for building construction.

[0015] In summary, the utility model has the advantages of simple and convenient installation, material saving, high reusability, no need for complex training, easy acceptance by operating personnel, and is beneficial to popularization. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A structural schematic view of an elevator shaft inner cylinder corner formwork stretching and contracting device is provided for the utility model;

[0017] Figure 2 A corner column part structural schematic view of an elevator shaft inner cylinder corner formwork stretching and contracting device is provided for the utility model;

[0018] Figure 3The utility model provides a kind of quick wrench part structure enlarged view in elevator shaft inner tube angle mould telescopic device.

[0019] Figure 4 The utility model provides a kind of moving frame part structure enlarged view in elevator shaft inner tube angle mould telescopic device.

[0020] In the drawing: 1 flat mould, 2 angle column, 3 clamping sliding mould, 4 pull rod shaft, 5 quick wrench, 6 positioning frame, 7 moving frame, 8 rotating frame, 9 connecting frame, 10 mounting piece. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all.

[0022] REFERENCE Figures 1-4 A kind of elevator shaft inner tube angle mould telescopic device, including four flat moulds 1 parallel to the back of elevator shaft side, two flat moulds 1 are vertically arranged, and angle column 2 is arranged between the two flat moulds 1, clamping sliding mould 3 is vertically arranged on each angle column 2, a plurality of quadrilateral pull plate mechanisms are equidistantly arranged on clamping sliding mould 3, pull rod shaft 4 is arranged on the quadrilateral pull plate mechanism on the same clamping sliding mould 3, and pull rod shaft 4 drives the contraction and expansion of quadrilateral pull plate mechanism, and the upper end of each pull rod shaft 4 is sleeved with quick wrench 5;

[0023] In the formwork system formed by four flat moulds 1, a plurality of collapsible columns are evenly distributed along the vertical direction of the elevator shaft, the collapsible columns penetrate the unit formwork and are connected with the support main beam, the support main beam is used for supporting and fixing the unit formwork, to ensure the stability and integrity of the formwork system in the horizontal direction;The bottom of the collapsible column is fixedly connected to the support base secondary beam, which is located at the bottom of the entire formwork system, and plays a role in bearing and dispersing the weight of the formwork system;The unit formwork forms a stable elevator shaft inner form structure by being connected with the angle column 2, the collapsible column and the support main beam, wherein the unit formwork is tightly connected with the angle column 2 in the vertical direction, and is connected with the collapsible column in the horizontal and vertical directions, to realize the deformation of the formwork system with the contraction and expansion action of the collapsible column;The shaped formwork is composed of a plurality of unit formworks, and can realize overall contraction and expansion under the contraction and expansion action of the collapsible column, to adapt to the different stage requirements in the construction process of the elevator shaft, such as the opening and fixing during concrete pouring and the contraction and demolding after pouring.

[0024] A plurality of symmetrical thread groups are equidistantly formed on each pull rod shaft 4, and each quadrilateral pull plate mechanism is arranged on the symmetrical thread group, each symmetrical thread group includes two symmetrical threads, and the thread directions of the two threads are opposite.

[0025] Each quadrilateral pull plate mechanism comprises symmetrically arranged positioning frames 6, and the positioning frames 6 are sleeved on the non-threaded portion of the pull rod shaft 4, each threaded portion is threadedly connected with a moving frame 7, each moving frame 7 is symmetrically and rotatably connected with two rotating frames 8, the ends of the two rotating frames 8 located on the same side and away from the moving frame 7 are commonly rotatably connected with a connecting frame 9, the positioning frame 6 is provided with a mounting piece 10, and the mounting piece 10 is slidably connected on the clamping sliding form 3.

[0026] Template expansion and fixing stage: when the concrete pouring of the elevator shaft is needed, the template device is first expanded and fixed in the appropriate position, at this time, the quick wrench 5 is operated to drive the pull rod shaft 4 to rotate. Since the pull rod shaft 4 is provided with a symmetric screw group, and each threaded portion is threadedly connected with the moving frame 7, when the pull rod shaft 4 rotates, according to the characteristics of the thread, the two moving frames 7 symmetrically arranged and with opposite thread directions will move in opposite or opposite directions, the movement of the moving frame 7 drives the rotating frame 8 connected therewith to rotate, thereby causing the connecting frame 9 to displace, the connecting frame 9 drives the positioning frame 6 to move through the mounting piece 10, so that the entire quadrilateral pull plate mechanism expands outward, the expansion of the quadrilateral pull plate mechanism pushes the clamping sliding form 3 to move outward, the clamping sliding form 3 drives the angle column 2 to move, thereby causing the adjacent flat form 1 to be expanded, and the retractable column also remains in the expanded state, supporting the main beam to fix the position of the unit template, the entire shaped template reaches the preset pouring size, and is ready for concrete pouring. In this process, the supporting base secondary beam provides stable support for the entire template system, bears the weight of the template system and the lateral pressure generated during concrete pouring, etc., and ensures that the template does not displace and deform during pouring.

[0027] Template contraction stage: after the concrete pouring of the elevator shaft is completed and reaches a certain strength, the template needs to be removed for subsequent construction, at this time, the quick wrench 5 is operated again to make the pull rod shaft 4 rotate in the opposite direction, which is opposite to the above expansion process, the reverse rotation of the pull rod shaft 4 causes the moving frame 7 to move in the opposite direction, driving the rotating frame 8 and the connecting frame 9 to move, so that the quadrilateral pull plate mechanism contracts, the contraction of the quadrilateral pull plate mechanism pulls the clamping sliding form 3 to move inward, the angle column 2 is thereby retracted inward, the flat form 1 is also gradually closed, and the retractable column begins to contract under the action of the internal structure (such as a lead screw shaft or similar structure), driving the supporting main beam and the unit template to contract together, and finally the template system is contracted to the designed minimum position, so that the template system is separated from the concrete wall of the elevator shaft, facilitating the template to be lifted to the next construction floor for repeated use. In the entire contraction process, the supporting base secondary beam also plays a key role, and its structural design ensures that it can stably support the template system during template contraction, and through the alternate rotation of the four corners, it can ensure that each panel surface contracts uniformly, avoiding the template from being stuck or damaged due to uneven contraction.

[0028] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A telescopic device for corner formwork of an elevator shaft, comprising four flat forms (1) parallel to the back of the elevator shaft side, characterized in that: Two said flat dies (1) vertically adjacent are provided with an angle column (2) in common, each said angle column (2) is vertically provided with a clamping sliding die (3), a plurality of quadrilateral pull plate mechanisms are equidistantly arranged on the clamping sliding die (3), the quadrilateral pull plate mechanisms on the same clamping sliding die (3) are provided with a pull rod shaft (4) in common, and the pull rod shaft (4) drives the quadrilateral pull plate mechanism to contract and expand, the upper end of each said pull rod shaft (4) is sleeved with a quick wrench (5).

2. A telescopic corner form for an elevator shaft interior according to claim 1, wherein: A plurality of symmetrical thread groups are equidistantly arranged on each said pull rod shaft (4), each quadrilateral pull plate mechanism is arranged on a symmetrical thread group, each said symmetrical thread group comprises two symmetrical threads, and the directions of the two threads are opposite.

3. An elevator shaft in-tube corner formwork telescoping device according to claim 2, characterized in that: Each said quadrilateral pull plate mechanism comprises a symmetrical positioning frame (6), and the positioning frame (6) is sleeved on the non-threaded part of the pull rod shaft (4), each said thread is threadedly connected with a moving frame (7), each said moving frame (7) is symmetrically connected with two rotating frames (8), and the two rotating frames (8) on the same side are connected with a connecting frame (9) at the end away from the moving frame (7).

4. An elevator shaft in-tube corner formwork telescoping device according to claim 3, characterized in that: The positioning frame (6) is provided with a mounting piece (10), and the mounting piece (10) is slidingly connected to the clamping sliding die (3).

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