Telescopic formwork for bridge pier column straining beam

Abstract

The utility model discloses a telescopic formwork for a bridge pier column straining beam, and belongs to the technical field of bridge construction. A bridging piece containing groove is formed in one side, close to a movable formwork, of a fixed formwork, a guide rail is arranged on the fixed formwork and located on the inner side of the bridging piece containing groove, a supporting rod is arranged on the guide rail in a sliding mode, and a filling plate is arranged at the upper end of the supporting rod; a pushing piece used for pushing the supporting rod to ascend is arranged at the position, below the supporting rod, of the bottom of the fixed mold plate in a sliding mode, the pushing piece is connected with the movable mold plate through a sliding rod device, and the movable mold plate is pushed through a screw gear motor to adjust the position of the movable mold plate and the fixed mold plate. The problems that in bridge construction, a tie beam formwork cannot be aligned and gaps exist due to pier column perpendicularity adjustment are solved, and the construction efficiency and the tie beam quality are improved. A sliding supporting rod is arranged on a guide rail in a fixed formwork bridging piece containing groove, a filling plate is arranged at the upper end, a lower pushing piece is connected with a movable formwork through a sliding rod device, the pushing piece enables the supporting rod to ascend during moving, the filling plate fills gaps, it is guaranteed that the formwork is flat and free of gaps, and practicability and adaptability are enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a telescopic template used for bridge pier tie beams. Background Art

[0002] With the increasing popularity of expressways, construction in mountainous areas is accelerating. Currently, the design height of cylindrical piers is generally under 35 meters. Three intermediate tie beams are designed for piers over 30 meters. During construction, due to the height of the piers, it was discovered during segmented construction that the tie beam formwork was fixed. Adjusting the verticality during pier construction resulted in misalignment of the tie beam formwork, resulting in gaps of 3 to 10 cm. This resulted in low construction efficiency and poor appearance quality of the tie beams.

[0003] When the existing adjustable tie beam formwork is adjusted, a gap will appear between the two formworks, which needs to be filled by welding iron plates later, reducing construction efficiency. Utility Model Content

[0004] The purpose to be achieved by the utility model is to provide a retractable formwork for bridge pier tie beams, so as to solve the problem that a gap will appear between the two templates of the existing adjustable tie beam formwork during adjustment, and the gap needs to be filled by welding iron plates at a later stage, which reduces the construction efficiency.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a retractable formwork for bridge pier tie beams, comprising a fixed formwork, a movable formwork and a screw reduction motor fixed at the bottom of the fixed formwork and the output end of which is connected to the bottom of the movable formwork, the movable formwork is provided with an outer cantilever plate at one end close to the fixed formwork, the fixed formwork is provided with a cantilever plate accommodating groove on the side close to the movable formwork, a guide rail is provided on the inner side of the cantilever plate accommodating groove on the fixed formwork, a support rod is slidably provided on the guide rail, the upper end of the support rod is provided with a filling plate, the bottom of the fixed formwork is provided with a pushing member for pushing the support rod to rise slidingly under the support rod, and the pushing member is connected to the movable formwork through a sliding rod device.

[0006] Furthermore, a sleeve is provided at the bottom of the fixed template, and a slide is provided at the bottom of the movable template in sliding connection with the sleeve.

[0007] Furthermore, the sliding rod device includes a pair of bases symmetrically arranged on the outside of the fixed template, a guide rod is provided between the pair of bases, and a connecting member is slidably provided on the guide rod, one end of the connecting member is connected to the movable template, and the other end is connected to the pushing member.

[0008] Furthermore, the pushing member includes a moving trolley slidably connected to the bottom of the fixed template and a trapezoidal protrusion constructed on the moving trolley.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] 1. The utility model has two slidingly connected fixed templates and a movable template. The screw reduction motor drives the movable template to move so as to adjust the position between the fixed template and the movable template. This solves the problem of misalignment and gaps in the tie beam templates caused by adjusting the verticality of the pier during bridge construction, thereby improving construction efficiency and the overall construction quality of the tie beam.

[0011] 2. A guide rail is provided on the inner side of the template accommodating groove on the fixed template, and a support rod is slidably provided on the guide rail. A filling plate is provided at the upper end of the support rod, and a pushing member for pushing the support rod to rise is slidably provided under the support rod. At the same time, the pushing member is fixedly connected to the movable template through a sliding rod device. When the movable template is pushed to separate from the fixed template, the pushing member can move synchronously with the movable template through the sliding rod device. During the movement, the pushing member will push the support rod to rise, and the rising support rod will drive the filling plate to fill the distance between the movable template and the fixed template, so that the surfaces of the fixed template and the movable template can always be kept flat without gaps, further enhancing the practicality and adaptability of the template system in construction applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below with reference to the accompanying drawings:

[0013] Figure 1 This is a schematic diagram of the overall structure of a retractable formwork for bridge pier tie beams according to the present invention;

[0014] Figure 2 This is a schematic diagram of the bottom structure of a retractable formwork for a bridge pier tie beam according to the present invention;

[0015] Figure 3 for Figure 2 A magnified schematic diagram of point A in the middle;

[0016] Figure 4 This is the installation diagram of the screw reduction motor of the utility model

[0017] Figure 5 This is a schematic diagram of the connection between the sleeve and the slide cylinder of the utility model;

[0018] Figure 6 This is a structural diagram of the fixed template of the utility model;

[0019] Figure 7 This is a schematic diagram of the result of the mobile template of the present utility model.

[0020] In the figure: 1 fixed template, 11 cantilever plate accommodating groove, 12 guide rail, 13 support rod, 14 filling plate, 15 pusher, 151 movable trolley, 152 trapezoidal protrusion, 16 slide rod device, 161 base, 162 guide rod, 163 connecting member, 17 sleeve, 2 movable template, 21 outer cantilever plate, 22 slide cylinder, 3 screw reduction motor. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions 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 only part of the embodiments of the present invention, not all of the embodiments.

[0022] The following specific embodiments are used to describe the technical solution of the present invention in detail. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0023] like Figures 1 to 7 As shown, the utility model provides a retractable formwork for bridge pier tie beams, a retractable formwork for bridge pier tie beams, comprising a fixed formwork 1, a movable formwork 2 and a screw reduction motor 3 fixed at the bottom of the fixed formwork 1 and with the output end connected to the bottom of the movable formwork 2, the movable formwork 2 is provided with an outer cantilever plate 21 at one end close to the fixed formwork 1, a cantilever plate accommodating groove 11 is provided on the side of the fixed formwork 1 close to the movable formwork 2, a guide rail 12 is provided on the inner side of the cantilever plate accommodating groove 11 on the fixed formwork 1, a support rod 13 is slidably provided on the guide rail 12, a filling plate 14 is provided on the upper end of the support rod 13, the bottom of the fixed formwork 1 is slidably provided with a pusher 15 for pushing the support rod 13 to rise, and the pusher 15 is connected to the movable formwork 2 through a sliding rod device 16.

[0024] When the movable template 2 is folded with the fixed template 1, the overhanging plate 21 can completely cover the cantilever plate accommodating groove 11, at this time, the movable template 2 and the fixed template 1 form a completed plane, the guide rail 12 arranged on the fixed template 1 inside the cantilever plate accommodating groove 11 is a channel-shaped guide rail 12, and the sliding direction of the guide rail 12 is vertically upward and downward on the ground, the support rod 13 is a support rod 13 matched with the guide rail 12, the upper portion of the support rod 13 is provided with a filling plate 14, the width of the filling plate 14 is close to the width of the fixed template 1, a plurality of guide rails 12, support plates and filling plates 14 are arranged in the cantilever plate accommodating groove 11, a pushing piece 15 for pushing the support rod 13 to rise is arranged below the support rod 13, and the pushing piece 15 is connected with the movable template 2 through a sliding rod device 16; when the movable template 2 is pushed to separate from the fixed template 1, the pushing piece 15 can move synchronously with the movable template 2 through the sliding rod device 16, the pushing piece 15 pushes the support rod 13 to rise in the moving process, the rising support rod 13 drives the filling plate 14 to fill the distance between the movable template 2 and the fixed template 1, and the pushing piece 15 pushes the support plates and the filling plates 14 arranged in the cantilever plate accommodating groove 11 to rise in sequence in the continuous moving of the movable template 2, so that the surface of the fixed template 1 and the movable template 2 can always be kept flat and no gap is formed, and the practicability and adaptability of the template system in construction application are further enhanced.

[0025] The bottom of the fixed template 1 is further provided with a sleeve 17, and the bottom of the movable template is provided with a sliding cylinder 22 in sliding connection with the sleeve 17, so that the movable template 2 can stably slide on the fixed template 1.

[0026] The sliding rod device 16 comprises a pair of bases 161 symmetrically arranged outside the fixed template 1, a guide rod 162 is arranged between the pair of bases 161, a connecting piece 163 is slidably arranged on the guide rod 162, one end of the connecting piece 163 is connected with the movable template 2, and the other end of the connecting piece 163 is connected with the pushing piece 15, so that the pushing piece 15 and the movable template 2 share the pushing force of the screw rod reduction motor 3 to realize the same movement, and the manufacturing cost and use cost of the equipment are reduced.

[0027] The pushing piece 15 comprises a moving trolley 151 in sliding connection with the bottom of the fixed template 1 and a trapezoidal lug 152 arranged on the moving trolley 151; the two sides of the trapezoidal lug 152 are inclined surfaces, the inclined surfaces can be better inserted into the bottom of the support rod 13, and the support rod 13 slowly rises along the inclined surfaces, so that the stability of the filling plate 14 in filling the gap is ensured.

[0028] The utility model discloses not only solve the problem that the beam formwork is not matched and there is a gap due to adjusting the verticality of the pier column when the bridge is constructed, but also can ensure that the movable template 2 and the fixed template 1 can always be kept flat.

Claims

1. A retractable formwork for bridge pier tie beams, comprising a fixed formwork, a movable formwork, and a screw reduction motor fixed to the bottom of the fixed formwork and having its output end connected to the bottom of the movable formwork, characterized in that: The movable template is provided with an outer cantilever plate at one end close to the fixed template, and a cantilever plate accommodating groove is provided on the side of the fixed template close to the movable template. A guide rail is provided on the inner side of the cantilever plate accommodating groove, and a support rod is slidably provided on the guide rail. A filling plate is provided at the upper end of the support rod, and a pushing member for pushing the support rod to rise is slidably provided at the bottom of the fixed template under the support rod, and the pushing member is fixedly connected to the movable template through a sliding rod device.

2. The retractable formwork for bridge pier tie beams according to claim 1, characterized in that: The bottom of the fixed template is further provided with a sleeve, and the bottom of the movable template is provided with a sliding cylinder which is slidably connected with the sleeve.

3. The retractable formwork for bridge pier tie beams according to claim 1, characterized in that: The sliding rod device includes a pair of bases symmetrically arranged on the outside of the fixed template, a guide rod is provided between the pair of bases, and a connecting member is slidably provided on the guide rod. One end of the connecting member is connected to the movable template, and the other end is connected to the pushing member.

4. The retractable formwork for bridge pier tie beams according to claim 1, characterized in that: The pushing member includes a moving trolley slidably connected to the bottom of the fixed template and a trapezoidal protrusion constructed on the moving trolley.

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