Variable-amplitude formwork device for construction in narrow plane space

Abstract

The utility model discloses a variable-amplitude formwork device for construction in a narrow plane space. The variable-amplitude formwork device comprises a formwork plane, at least four variable-amplitude devices, a guiding device and an operating rod. The template plane comprises a mother board and a daughter board; the opposite surfaces of the mother board and the daughter board are contacted with concrete; the amplitude changing devices are arranged in the space defined by the opposite faces of the mother board and the daughter board at intervals and hinged to the mother board, the daughter board and the operating rod. The device is low in manufacturing cost, convenient and fast to construct, shaped, high in turnover efficiency and small and exquisite in structure.

Description

Technical Field

[0001] The present application relates to the technical field of construction engineering, and in particular to a variable-length formwork device for construction in a narrow plane space. Background Art

[0002] In construction projects, it is often necessary to leave smaller expansion joints, but the formwork used in traditional construction methods is a straight plate. This type of formwork is difficult to remove after construction, and it is also difficult to form expansion joints of the required size after support. At the same time, after supporting and removing the formwork, the concrete appearance interface size and the width of the expansion joint cannot be guaranteed, which affects the construction effect of the expansion joint.

[0003] In response to such problems, CN201010518558.0 discloses a special support system for deformation joint formwork of building structures. Although the system solves the technical difficulties of deformation joint formwork being weakly reinforced and difficult to remove, especially for deformation joints between walls, it changes the current situation that conventional processes are difficult to remove. However, the deformation joint is mainly adjusted by an elliptical support member sandwiched between relatively arranged bamboo plywood panels. However, since the elliptical support member and the bamboo plywood panel are in contact with an arc surface and a plane surface, the contact surface is small, and the rotation angle is difficult to control. In addition, the entire system has many structural components, which is not conducive to on-site construction and assembly. At the same time, multiple elliptical support members are required to support the formwork. When dismantling, the width that can be reduced is small due to the width of the elliptical support member itself, making it difficult to achieve rapid dismantling.

[0004] The information disclosed in the background technology section is only intended to increase the understanding of the overall background of the utility model, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to ordinary technicians in the field. Utility Model Content

[0005] In view of the above-mentioned technical problems, the present application provides a variable-width formwork device for construction in a narrow plane space. The device has a simple structure, can adjust the width of the deformation joint during the construction process, and is easy to dismantle as a whole after construction.

[0006] The present application provides a variable amplitude formwork device for narrow plane space construction, comprising: a template plane, a variable amplitude device, a guide device, and an operating rod;

[0007] The template plane includes: a motherboard and a sub-board; the opposite backs of the motherboard and the sub-board are in contact with the concrete; the amplitude changing device, the guide device, and the operating rod are accommodated and arranged in the space surrounded by the opposite surfaces of the motherboard and the sub-board;

[0008] The luffing device is hinged to the motherboard, the sub-board and the operating rod respectively;

[0009] The guide devices are symmetrically arranged at the upper and lower parts of the opposite surfaces of the motherboard and the daughterboard, and are disassembled and connected;

[0010] During support, the external support of the luffing device pushes the motherboard and the sub-board outward to the support position;

[0011] When dismantling, the operating rod is lifted, and the amplitude-changing device pulls back the main plate and the sub-plate until the distance between the main plate and the sub-plate is smaller than the width of the deformation joint.

[0012] Preferably, the amplitude changing device comprises: a hinge assembly, a spring, and a limit plate arranged in pairs; the limit plates are arranged in pairs on the side walls of the motherboard and are arranged above and below the hinge assembly; the spring is sleeved on the operating rod and is accommodated between the limit plate arranged above the hinge assembly and the hinge assembly;

[0013] The hinge components are arranged on both sides of the operating rod; the operating rod is hinged to the opposite sides of the sub-board and the motherboard through the hinge components; the operating rod is inserted into the long through hole opened on the limit plate;

[0014] During support, the upper part of the spring abuts against the bottom surface of the upper limiting plate, the lower part of the spring abuts against the top surface of the hinge assembly, and the hinge assembly abuts against the lower limiting plate.

[0015] Preferably, the hinge assembly comprises: a fixed ear plate and a rotating connecting piece; through holes are provided at both ends of the rotating connecting piece; the fixed ear plates are respectively installed on the opposite surfaces of the motherboard and the daughterboard;

[0016] One end of the fixed ear plate and the rotating connecting piece is hinged;

[0017] The other end of the rotating connecting piece is hinged to the operating rod.

[0018] Preferably, the hinge assembly comprises: a hinge rod; a hinge rod symmetrically arranged on the side wall opposite to the operating rod; and the hinge rod is hinged to the other end of the rotating connecting piece.

[0019] Preferably, the guide device array is arranged at the upper part and the lower part of the area surrounded by the motherboard and the daughterboard.

[0020] Preferably, the guide device comprises: a directional sleeve group; the directional sleeve group is arranged at the lower part of the area surrounded by the motherboard and the sub-board; the directional sleeve group comprises: a first directional sleeve and a second directional sleeve; the first directional sleeve is arranged on the sub-board; the second directional sleeve is arranged on the motherboard; long holes are provided on the extended ends of the first directional sleeve and the second directional sleeve; the extended ends of the first directional sleeve and the second directional sleeve are arranged in alignment;

[0021] When in use, the extension end of the first directional sleeve and the extension end of the second directional sleeve are plugged in; the long strip hole on the first directional sleeve and the long strip hole on the second directional sleeve are aligned after being plugged in;

[0022] The pin is passed through the long hole.

[0023] Preferably, the guide device comprises: a guide sleeve group; the guide sleeve group is arranged at the upper part of the area surrounded by the motherboard and the daughterboard; the guide device comprises: a first guide sleeve and a second guide sleeve; the first guide sleeve is arranged on the daughterboard; the second guide sleeve is arranged on the motherboard; the long strip holes are arranged on the extended ends of the first guide sleeve and the second guide sleeve in an aligned manner; the extended ends of the first guide sleeve and the second guide sleeve are arranged in an aligned manner;

[0024] When in use, the extension end of the first guide sleeve and the extension end of the second guide sleeve are plugged in; the long hole on the first guide sleeve and the long hole on the second guide sleeve are aligned after being plugged in; and the pin is inserted into the long hole.

[0025] Preferably, the first directional sleeves are symmetrically arranged on opposite corners of the daughter board; and the second directional sleeves are symmetrically arranged on opposite corners of the mother board.

[0026] Preferably, the first guide sleeves are symmetrically arranged on the opposite vertices of the sub-plate; and the second guide sleeves are symmetrically arranged on the opposite vertices of the eye plate.

[0027] Preferably, the amplitude variation device array is arranged in the central area of ​​the motherboard and the daughterboard; it comprises: a plurality of operating rods, each operating rod is hinged to the amplitude variation device arranged at a longitudinal interval.

[0028] The beneficial effects of this application include:

[0029] 1) The variable-length formwork device for construction in a narrow plane space provided in the present application is composed of a template plane, a guide device, and a variable-length formwork device. The sub-plate and the mother plate are used as templates. The spacing of the template plane is changed by the variable-length formwork device to realize the support of the deformation joint, which is convenient for dismantling the device, so that the template for construction in a narrow plane space is easy to support and dismantle. The guide device constrains the changing direction of the template plane during the process of changing the state of the variable-length formwork device, thereby avoiding adverse effects on the shape of the deformation joint.

[0030] 2) The variable-length formwork device for narrow plane space construction provided in this application has low manufacturing cost, convenient and fast construction, standardized design, high turnover efficiency and compact structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 Schematic diagram of the support state of the variable-length formwork device for narrow plane space construction provided in this application;

[0032] Figure 2 Schematic diagram of the dismantling state of the variable-length formwork device for narrow plane space construction provided for this application;

[0033] Figure 3 Schematic diagram of the explosion state of the variable-length formwork device for narrow plane space construction provided for this application;

[0034] Figure 4 This is a schematic diagram of the main structure of the motherboard provided in this application;

[0035] Figure 5 A schematic diagram of the main structure of the sub-board provided for this application;

[0036] Figure 6 A partially enlarged schematic diagram of the main structure of the variable-length formwork device for narrow plane space construction provided by the present application in a state without external force pushing or pulling;

[0037] Figure 7 A partially enlarged side structural schematic diagram of the variable-length formwork device for narrow plane space construction provided in this application in a state without external force pushing or pulling;

[0038] Figure 8 A partially enlarged schematic diagram of the main structure of the variable-length formwork device for narrow plane space construction provided in this application under an external force pulling state;

[0039] Fig. 9 A partially enlarged side structural schematic diagram of the narrow plane space construction variable-length formwork device provided in this application under an external force pulling state;

[0040] Legend:

[0041] Template plane 1, guide device 2, amplitude changing device 3, motherboard 4, sub-board 5, first directional sleeve 7, fixed ear plate 8, second directional sleeve 6, limit plate 9, first guide sleeve 71, second guide sleeve 61, operating rod 10, spring 11, rotating connecting piece 12, hinged rod 121. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0043] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0044] The technical means that are not described in detail in this application and are not used to solve the technical problems of this application are all set according to the common knowledge in the field, and can be implemented in a variety of common knowledge settings.

[0045] See also Figures 1 to 6 The invention provides a variable amplitude formwork device for narrow plane space construction, comprising: a template plane 1, a guide device 2, a variable amplitude device 3, a motherboard 4, a sub-board 5, a first directional sleeve 7, a fixed ear plate 8, a second directional sleeve 6, a limit plate 9, a first guide sleeve 71, a second guide sleeve 61, an operating rod 10, a spring 11, and a rotating connecting piece 12;

[0046] Since both the motherboard 4 and the daughterboard 5 are plate-shaped, in order to ensure reliable supporting force, the guide device 2 and the amplitude changing device 3 can be set according to the size of the area. When the motherboard 4 and the daughterboard 5 are large in area, the guide device 2 can be set on the top corners of the motherboard 4 and the daughterboard 5 respectively; the amplitude changing device 3 arranged in a rectangular array is set in the central area of ​​the motherboard 4 and the daughterboard 5. If the motherboard 4 and the daughterboard 5 are small in area or long strips, the number of the guide devices 2 and the amplitude changing device 3 can be reduced.

[0047] See also Figures 6 to 9 The template plane 1 includes: a motherboard 4 and a sub-board 5, and the opposite back surfaces of the motherboard 4 and the sub-board 5 are in contact with the concrete; the first directional sleeve 7, the fixed ear plate 8, the second directional sleeve 6, the first guide sleeve 71, and the second guide sleeve 61 are respectively arranged in an array on the opposite surfaces of the motherboard 4 and the sub-board 5; at least four amplitude change devices 3 are arranged on the operating rod 10, the operating rods 10 are arranged in pairs, and are respectively hinged to the longitudinally arranged amplitude change devices 3, and the operating rods 10 are respectively hinged to the motherboard 4 and the sub-board 5 through the amplitude change devices 3.

[0048] When the operating rod 10 is lifted, the spring 1 is squeezed, and the amplitude changing device 3 pulls the motherboard 4 and the sub-board 5 back, reducing the distance between the motherboard 4 and the sub-board 5 to less than the distance between the deformation joints, so as to facilitate the removal of the entire device. When the operating rod 10 is not subjected to external force, the spring 11 pushes the motherboard 4 and the sub-board 5 to expand outward through the amplitude changing device 3, expands the distance between the motherboard 4 and the sub-board 5, and realizes the support. After the spring 11 is pushed to the supporting position, the motherboard 4 and the sub-board 5 are pushed outward to fit the concrete surface under the push of the amplitude changing device 3, and cooperates with the spring 11 to provide reliable external support force for the motherboard 4 and the sub-board 5, effectively preventing the motherboard 4 and the sub-board 5 from retracting. In order to ensure the supporting force, a plurality of amplitude changing devices 3 can be arranged in an array, and the arrangement form of the amplitude changing device can be arranged in the form of an array or a vertical line according to the shape of the motherboard 4 and the sub-board 5.

[0049] According to the area of ​​the supported motherboard 4 and sub-board 5, multiple guide devices 2 can be arranged in an array, mainly arranged at the top corners of the board body. In a specific embodiment, the guide device 2 is arranged on the upper and lower parts of the opposite surfaces of the motherboard 4 and the sub-board 5, and the motherboard 4 and the sub-board 5 are pre-connected through the guide device 2. Prevent the template plane 1 from deforming too much and affecting the deformation joint morphology.

[0050] A second guide sleeve 61 is arranged on the upper side wall of the motherboard 4; a first guide sleeve 71 is arranged on the upper side wall of the sub-board 5; a second directional sleeve 6 is arranged on the lower side wall of the motherboard 4; a first directional sleeve 7 is arranged on the lower side wall of the sub-board 5; the second guide sleeve 61 and the first guide sleeve 71 are arranged in alignment and pre-connected by pins, and the pin holes are long holes; the first directional sleeve 7 and the second directional sleeve 6 are arranged in alignment and pre-connected by pins, and the pin holes are long holes; by arranging the second guide sleeve 61, the first guide sleeve 71, the first directional sleeve 7, and the second directional sleeve 6, the separation of the motherboard 4 and the sub-board 5 can be effectively prevented when lowering, and the relative position relationship of the template plane 1 cannot be maintained, which affects the preset size of the deformation joint.

[0051] In a specific embodiment, it includes: 4 amplitude devices 3; 4 amplitude devices 3 are arranged at intervals on the operating rod 10; the amplitude devices 3 include: fixed ear plates 8 arranged in pairs, limit plates 9 arranged in pairs, the operating rod 10, springs 11, and rotating connecting pieces 12 arranged in pairs, the fixed ear plates 8 are symmetrically and alignedly arranged on the opposite sides of the mother plate 4 and the sub-plate 5; the rotating connecting pieces 12 are symmetrical and arranged on both sides of the operating rod 10, and are respectively hinged with the fixed ear plates 8 arranged on the mother plate 4 and the sub-plate 5 through pins. After hinged, the pins serve as rotating shafts to realize the rotation of the rotating connecting pieces 12 relative to the fixed ear plates 8. The operating rod 10 and the rotating connecting pieces 12 are hinged through a hinge rod 121 arranged on the side wall of the operating rod 10.

[0052] When dismantling the device, the operating rod 10 is lifted up, and the extrusion spring 11 is compressed toward the upper limit plate 9, while overcoming the adhesion force between the sub-plate 5 and the mother plate 4 and the concrete surface to achieve dismantling. In order to obtain the above-mentioned force, the dismantling operation can be completed with the help of mechanical equipment.

[0053] The hinge components are arranged in pairs on both sides of the operating rod 10 and are respectively hinged to the opposite surfaces of the sub-board 5 and the motherboard 4. The hinge components include: a fixed ear plate 8 fixedly arranged on the motherboard 4 and the sub-board 5, and a rotating connecting piece 12, one end of the rotating connecting piece 12 is respectively hinged to the fixed ear plate 8 on the motherboard 4 and the sub-board 5, and the other end of the rotating connecting piece 12 is respectively hinged to the two sides of the operating rod 10. The fixed ear plate 8 on the motherboard 4 is arranged above the limit plate 9.

[0054] In a specific embodiment, the operating rod 10 includes: a main rod and a hinged rod 121; the hinged rod 121 is symmetrically arranged on both sides of the main rod; the extended ends of the hinged rods 121 on both sides are respectively hinged to the through holes opened on one end of the long rotating connecting piece 12; the spring 11 is sleeved on the main rod, and the lower end of the spring 11 abuts against the hinged rod 121.

[0055] The limit plate 9 is arranged on the motherboard 4, and the operating rod 10 is passed through the through hole opened on the limit plate 9. The limit plate 9 is arranged on the upper and lower sides of the fixed ear plate 8; the limit plate 9 arranged above the fixed ear plate 8 abuts against the upper part of the spring 11.

[0056] During installation: the pin is inserted into the circular hole of the fixed ear plate 8 and the circular hole of the rotating connecting piece 12, serving as the rotating axis of the rotating connecting piece 12, a hinged rod 121 is set on one side of the operating rod 10 to be hinged to the rotating connecting piece 12 on the mother plate 4 and the sub-plate 5 respectively, the spring 11 is passed through the operating rod 10 and accommodated in the rotating connecting piece 12 hinged to the limiting plate 9 and the hinged rod 121, and the operating rod 10 is passed through the strip-shaped circular hole of the limiting plate 9; the fixed ear plate 8 and the limiting plate 9 are fixed to the mother plate 4 and the sub-plate 5.

[0057] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A variable-length formwork device for narrow plane space construction, characterized in that: include: Template plane, luffing device, guide device, operating rod; The template plane includes: a motherboard and a sub-board; the opposite backs of the motherboard and the sub-board are in contact with the concrete; the amplitude changing device, the guide device, and the operating rod are accommodated and arranged in the space surrounded by the opposite surfaces of the motherboard and the sub-board; The luffing device is hinged to the motherboard, the sub-board and the operating rod respectively; The guide devices are symmetrically arranged at the upper and lower parts of the opposite surfaces of the motherboard and the daughterboard, and are disassembled and connected; During support, the external support of the luffing device pushes the motherboard and the sub-board outward to the support position; When dismantling, the operating rod is lifted, and the amplitude-changing device pulls back the main plate and the sub-plate until the distance between the main plate and the sub-plate is smaller than the width of the deformation joint.

2. The variable-length formwork device for narrow plane space construction according to claim 1 is characterized in that: The amplitude changing device comprises: a hinge assembly, a spring and a limit plate arranged in pairs; the limit plates are arranged in pairs on the side wall of the motherboard and are arranged above and below the hinge assembly; the spring is sleeved on the operating rod and is accommodated between the limit plate arranged above the hinge assembly and the hinge assembly; The hinge components are arranged on both sides of the operating rod; the operating rod is hinged to the opposite sides of the sub-board and the motherboard through the hinge components; the operating rod is inserted into the long through hole opened on the limit plate; During support, the upper part of the spring abuts against the bottom surface of the upper limiting plate, the lower part of the spring abuts against the top surface of the hinge assembly, and the hinge assembly abuts against the lower limiting plate.

3. The variable-length formwork device for narrow plane space construction according to claim 2 is characterized in that: The hinge assembly includes: a fixed ear plate and a rotating connecting piece; through holes are provided at both ends of the rotating connecting piece; the fixed ear plates are respectively installed on the opposite surfaces of the motherboard and the daughterboard; One end of the fixed ear plate and the rotating connecting piece is hinged; The other end of the rotating connecting piece is hinged to the operating rod.

4. The variable-length formwork device for narrow plane space construction according to claim 3 is characterized in that: The hinge assembly comprises: a hinge rod; a hinge rod symmetrically arranged on the side wall opposite to the operating rod; and the hinge rod is hinged to the other end of the rotating connecting piece.

5. The variable-length formwork device for narrow plane space construction according to claim 1 is characterized in that: The guide device array is arranged at the upper part and the lower part of the area surrounded by the motherboard and the daughterboard.

6. The variable-length formwork device for narrow plane space construction according to claim 5 is characterized in that: The guide device comprises: a directional sleeve group; the directional sleeve group is arranged at the lower part of the area surrounded by the motherboard and the sub-board; the directional sleeve group comprises: a first directional sleeve and a second directional sleeve; the first directional sleeve is arranged on the sub-board; the second directional sleeve is arranged on the motherboard; long strip holes are provided on the extended ends of the first directional sleeve and the second directional sleeve; the extended ends of the first directional sleeve and the second directional sleeve are arranged in alignment; When in use, the extension end of the first directional sleeve and the extension end of the second directional sleeve are plugged in; the long strip hole on the first directional sleeve and the long strip hole on the second directional sleeve are aligned after being plugged in; The pin is passed through the long hole.

7. The variable-length formwork device for narrow plane space construction according to claim 5 is characterized in that: The guide device comprises: a guide sleeve group; the guide sleeve group is arranged at the upper part of the area surrounded by the motherboard and the daughterboard; the guide device comprises: a first guide sleeve and a second guide sleeve; the first guide sleeve is arranged on the daughterboard; the second guide sleeve is arranged on the motherboard; the elongated holes are arranged on the extended ends of the first guide sleeve and the second guide sleeve in an aligned manner; the extended ends of the first guide sleeve and the second guide sleeve are arranged in an aligned manner; When in use, the extension end of the first guide sleeve and the extension end of the second guide sleeve are plugged in; the long hole on the first guide sleeve and the long hole on the second guide sleeve are aligned after being plugged in; and the pin is inserted into the long hole.

8. The variable-length formwork device for narrow plane space construction according to claim 6 is characterized in that: The first directional sleeve is symmetrically arranged on the relative vertex angles of the daughter board; the second directional sleeve is symmetrically arranged on the relative vertex angles of the mother board.

9. The variable-length formwork device for narrow plane space construction according to claim 7 is characterized in that: The first guide sleeve is symmetrically arranged on the relative vertex angles of the sub-plate; the second guide sleeve is symmetrically arranged on the relative vertex angles of the eye plate.

10. The variable-length formwork device for narrow plane space construction according to claim 1 is characterized in that: The amplitude variation device array is arranged in the central area of ​​the motherboard and the daughterboard; it comprises: a plurality of operating rods, each operating rod is respectively hinged to the amplitude variation device arranged at a longitudinal interval.

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