Assembled expansion joint formwork fixing device

Abstract

The utility model provides an assembled expansion joint formwork fixing device, which belongs to the technical field of expansion joint formworks and comprises a side formwork, a connecting slot is arranged at the center of one side of the side formwork, four hinged supports are circumferentially arranged around the connecting slot, and a telescopic guide rod is arranged between any two opposite hinged supports. The supporting assembly comprises an adjusting screw rod, a first sleeve shaft and a second sleeve shaft are arranged on the adjusting screw rod in a threaded mode, two first supporting rods are symmetrically hinged to the outer surface of the first sleeve shaft along the axis, and two second supporting rods are symmetrically hinged to the outer surface of the second sleeve shaft along the axis. The other ends of the first supporting rods and the second supporting rods on the adjacent sides are hinged to connecting plates, the connecting plates are detachably connected with the connecting inserting grooves, and the problems that in the prior art, a shaped formwork is high in manufacturing cost, cannot be suitable for expansion joints of all specifications due to the fixed size and is not flexible enough, and the formwork is prone to being damaged in the transferring process are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of expansion joint formwork, in particular to an assembled expansion joint formwork fixing device. Background Art

[0002] When pouring concrete walls over a large area, the phenomenon of thermal expansion and contraction caused by temperature changes often causes cracks in building components, affecting the stability and service life of the structure. To meet this challenge, engineers generally reserve gaps at certain intervals along the length of the building, namely expansion joints. The design of this expansion joint allows the building to expand and contract freely under the influence of external factors such as foundation settlement and temperature changes, thereby effectively preventing the occurrence of structural cracks.

[0003] In actual construction, the treatment of expansion joints usually involves the fixing and removal of formwork. The traditional construction method is to hoist the standardized formwork to the expansion joint for fixing, and then hoist and remove the formwork after the concrete pouring is completed. However, this method has many inconveniences. Its production cost is high, and due to its fixed size, it is not suitable for all specifications of expansion joints, is not flexible enough, and the formwork is easily damaged during transportation. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides an assembled expansion joint formwork fixing device for solving the above problems.

[0005] The utility model is achieved in this way:

[0006] An assembled expansion joint formwork fixing device, comprising:

[0007] A side template, wherein a connection slot is provided at the center of one side of the side template, and four hinge supports are provided along the circumference of the connection slot as the center of one side of the side template, and the side template has two hinge supports, and the side having the connection slot is arranged opposite to each other, and a telescopic guide rod is provided between any two opposite hinge supports;

[0008] A support assembly includes an adjusting screw, wherein the upper thread of the adjusting screw is provided with a first sleeve shaft and a second sleeve shaft, the outer surface of the first sleeve shaft is symmetrically hinged with two first support rods along the axis, the outer surface of the second sleeve shaft is symmetrically hinged with two second support rods along the axis, the other ends of the first support rod and the second support rod on the adjacent side are hinged with a connecting plate, the connecting plate is detachably connected to the connecting slot, one end of the adjusting screw is provided with a docking joint a, and the other end is provided with a docking joint b, and a manual adjustment head is detachably provided at the docking joint a.

[0009] In an embodiment of the utility model, the telescopic guide rod includes a sleeve and an inner tube, one end of the sleeve is hinged to a hinge support on one of the side templates, one end of the inner tube is hinged to a hinge support on the other side template, and the sleeve is relatively sleeved on the outside of the inner tube.

[0010] In an embodiment of the present invention, the adjusting screw has a threaded portion a and a threaded portion b, and the thread direction of the threaded portion a is opposite to the thread direction of the threaded portion b.

[0011] In an embodiment of the utility model, the first sleeve shaft is threadedly arranged on the threaded portion a, and the second sleeve shaft is threadedly arranged on the threaded portion b. When the adjusting screw is rotated, the first sleeve shaft and the second sleeve shaft are synchronously contracted inwardly or expanded outwardly.

[0012] In an embodiment of the utility model, a threaded hole is provided on the connecting plate, and after the connecting plate is inserted from one side of the connecting slot, it is fixed in the connecting slot by bolts.

[0013] In an embodiment of the utility model, the butt joint a and the butt joint b are embedded, and bolts are provided at the connection between the butt joint a and the butt joint b.

[0014] In an embodiment of the utility model, the number of the fixing devices is several and they are arranged side by side in the length direction of the expansion joint.

[0015] The beneficial effects of the utility model are as follows: the device adopts a modular design, and the various components can be quickly assembled and disassembled as needed to adapt to expansion joints of different lengths; the production cost of the device is lower, and due to the modular design, the components can be reused, further reducing the construction cost; the installation and disassembly process of the device is simple and fast, which reduces the construction time and improves the construction efficiency; through the design of the joints, multiple fixing devices can be quickly assembled to form an extended version of the fixing device, further improving the construction efficiency; the various components of the device can be stored in a dispersed manner for easy transportation and storage, and when not in use, the storage space can be reduced by disassembling and stacking. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1The overall structural diagram provided for the implementation mode of the utility model;

[0018] Figure 2 A schematic diagram of the structure of a support assembly provided in an embodiment of the utility model;

[0019] Figure 3 A schematic diagram of the partial structure of the butt joint a provided in the embodiment of the utility model;

[0020] Figure 4 A schematic diagram of the partial structure of the docking joint b provided in an embodiment of the utility model.

[0021] In the figure: 10, side template; 11, hinge support; 12, connecting slot; 13, telescopic guide rod; 1301, sleeve; 1302, inner tube; 20, support assembly; 21, adjusting screw; 2101, manual adjustment head; 2102, threaded portion a; 2103, threaded portion b; 2104, docking joint a; 2105, docking joint b; 22, first sleeve shaft; 23, second sleeve shaft; 24, first support rod; 25, second support rod; 26, connecting plate; 2601, threaded hole. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] 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.

[0024] like Figure 1As shown, the utility model provides an assembled expansion joint formwork fixing device, including a side template 10, a connecting slot 12 is arranged at the center of one side of the side template 10, and four hinge supports 11 are arranged circumferentially along the connecting slot 12 on one side of the side template 10. There are two side templates 10, and one side with the connecting slot 12 is arranged opposite to each other. A telescopic guide rod 13 is arranged between any two opposite hinge supports 11. The four telescopic guide rods 13 play a guiding role between the two side templates 10 when they are unfolded and closed by the support assembly 20, so that the support is more stable.

[0025] In this embodiment, the telescopic guide rod 13 includes a sleeve 1301 and an inner tube 1302. One end of the sleeve 1301 is hinged to the hinge support 11 on one of the side templates 10, and one end of the inner tube 1302 is hinged to the hinge support 11 on the other side template 10. The relative sleeve 1301 is sleeved on the outside of the inner tube 1302. When the individual components of the fixing device are dispersed, the sleeve 1301 or the inner tube 1302 on the side template 10 is folded and fits one side thereof, which is convenient for the stacking and transportation of the side templates 10. When installed and used, the telescopic guide rod 13 can also provide a stable guiding effect for the relative movement between the two side templates 10.

[0026] like Figure 2 As shown, the support assembly 20 includes an adjusting screw 21, the upper thread of which is provided with a first sleeve shaft 22 and a second sleeve shaft 23, the outer side of the first sleeve shaft 22 is symmetrically provided with two side ears along the axis, and the two side ears are respectively hinged with a first support rod 24, the outer side of the second sleeve shaft 23 is provided with a side ear identical to that on the first sleeve shaft 22, and the side ear is hinged with a second support rod 25, and the other ends of the first support rod 24 and the second support rod 25 on the adjacent side are hinged with a connecting plate 26.

[0027] Furthermore, the adjusting screw 21 has a threaded portion a2102 and a threaded portion b2103, the threaded direction of the threaded portion a2102 is opposite to the threaded direction of the threaded portion b2103, the first sleeve shaft 22 is threadedly arranged on the threaded portion a2102, and the second sleeve shaft 23 is threadedly arranged on the threaded portion b2103, and the adjusting screw 21 is rotated, and the first sleeve shaft 22 and the second sleeve shaft 23 are synchronously contracted inward or expanded outward, and this movement method prevents the connecting plate 26 from being displaced in the length direction of the fixing device, so that it only provides support for the side template 10.

[0028] In this embodiment, a threaded hole 2601 is provided on the connecting plate 26, and a corresponding threaded hole 2601 is provided on the side wall of the connecting slot 12 near the opening. The connecting plate 26 is inserted from the opening of the connecting slot 12, and the two threaded holes 2601 are coaxial and fixed by bolts.

[0029] like Figure 3 and Figure 4As shown, the cross section of the butt joint a2104 is cross-shaped, and a cross groove corresponding to the butt joint a2104 is opened at the center of the butt joint b2105. The butt joints a2104 and b2105 of any two adjusting screws 21 can be embedded together, and bolts are provided at the connection between the butt joints a2104 and b2105.

[0030] In this embodiment, a manual adjustment head 2101 is detachably provided at the joint a2104, so as to facilitate manual rotation of the adjustment screw 21 to expand and contract the two side templates 10. After the manual adjustment head 2101 is removed, multiple fixing devices can be assembled conveniently.

[0031] In one embodiment, there are several fixing devices, which are arranged side by side in the length direction of the expansion joint. The docking joints a2104 and b2105 on two adjacent fixing devices are embedded together, and a manual adjustment head 2101 is installed at the outermost docking portion a. The fixing device is randomly assembled into an extended version. The manual adjustment head 2101 can be rotated to adjust the extended version of the fixing device so that it can support the expansion joint.

[0032] Specifically, the working principle of this assembled expansion joint formwork fixing device is as follows: before use, the required number of the fixing devices is determined in combination with the length of the expansion joint. During assembly, the sleeves 1301 and the inner tube 1302 on the two side templates 10 are first unfolded so that they are sleeved together to form a sliding structure. The connecting plate 26 on the adjusting screw 21 is inserted from the opening direction of the connecting slot 12 and fixed by bolts. Several assembled fixing devices are arranged in the expansion joint, and two adjacent fixing devices are connected by docking joints a2104 and docking joints b2105. A manual adjusting head 2101 is detachably provided at the outermost docking joint a2104. At this time, the manual adjusting head 2101 can be rotated to control several fixing devices for support. After use, the fixing device can be hoisted out for quick disassembly to facilitate subsequent transportation and use. The above structure solves the problems of high production cost of standardized templates in the prior art, inability to apply to expansion joints of all specifications due to fixed size, lack of flexibility, and easy damage of the template during transportation.

[0033] The utility model is further described above with the help of specific embodiments, but it should be understood that the specific description here should not be construed as limiting the essence and scope of the utility model. Various modifications made to the above embodiments by ordinary technicians in this field after reading this specification are all within the scope of protection of the utility model.

Claims

1. An assembled expansion joint formwork fixing device, characterized in that: include: A side template (10), wherein a connection slot (12) is provided at the center of one side of the side template (10), and four hinge supports (11) are provided on one side of the side template (10) along the circumference of the center of the connection slot (12), and the side template (10) has two, and one side having the connection slot (12) is arranged opposite to each other, and a telescopic guide rod (13) is provided between any two opposite hinge supports (11); A support assembly (20) comprises an adjusting screw (21), wherein the upper thread of the adjusting screw (21) is provided with a first sleeve shaft (22) and a second sleeve shaft (23), wherein the outer surface of the first sleeve shaft (22) is symmetrically hinged with two first support rods (24) along the axis, and the outer surface of the second sleeve shaft (23) is symmetrically hinged with two second support rods (25) along the axis, and the other ends of the first support rod (24) and the second support rod (25) on adjacent sides are hinged with a connecting plate (26), and the connecting plate (26) is detachably connected to the connecting slot (12), and a docking joint a (2104) is provided at one end of the adjusting screw (21), and a docking joint b (2105) is provided at the other end, and a manual adjustment head (2101) is detachably provided at the docking joint a (2104).

2. The assembled expansion joint formwork fixing device according to claim 1 is characterized in that: The telescopic guide rod (13) comprises a sleeve (1301) and an inner tube (1302), one end of the sleeve (1301) is hinged to a hinge support (11) on one of the side templates (10), one end of the inner tube (1302) is hinged to a hinge support (11) on another side template (10), and the sleeve (1301) is sleeved on the outside of the inner tube (1302).

3. The assembled expansion joint formwork fixing device according to claim 1 is characterized in that: The adjusting screw (21) has a threaded portion a (2102) and a threaded portion b (2103), and the thread direction of the threaded portion a (2102) is opposite to the thread direction of the threaded portion b (2103).

4. The assembled expansion joint formwork fixing device according to claim 3 is characterized in that: The first sleeve shaft (22) is threadedly arranged on the threaded portion a (2102), and the second sleeve shaft (23) is threadedly arranged on the threaded portion b (2103). When the adjusting screw (21) is rotated, the first sleeve shaft (22) and the second sleeve shaft (23) are synchronously contracted inwardly or expanded outwardly.

5. The assembled expansion joint formwork fixing device according to claim 1 is characterized in that: The connection plate (26) is provided with a threaded hole (2601). After the connection plate (26) is inserted from one side of the connection slot (12), it is fixed in the connection slot (12) by means of bolts.

6. The assembled expansion joint formwork fixing device according to claim 1, characterized in that: The butt joint a (2104) and the butt joint b (2105) are embedded, and bolts are provided at the connection between the butt joint a (2104) and the butt joint b (2105).

7. An assembled expansion joint formwork fixing device according to any one of claims 1 to 6, characterized in that: There are several fixing devices, which are arranged side by side in the length direction of the expansion joint.

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