Automatic opening and closing circular pier steel formwork structure

Abstract

The invention discloses an automatic opening and closing circular pier column steel formwork structure, comprising: a multi-section cylindrical formwork unit, which is detachably connected along the axial direction, and each cylindrical formwork unit comprises: a cylindrical formwork, which is formed by detachably hinged two single formworks, and two adjacent cylindrical formworks are provided with connecting holes at both ends; a plurality of buckling locking parts, the buckling locking parts include a sub-end and a female end, and the sub-end or the female end is arranged on the two single formworks; a connecting top rod, which is slidably arranged on the connecting hole up and down, and the connecting top rod is provided with a corresponding female end or a sub-end; wherein, when the connecting top rod moves downward a certain distance, the sub-end and the female end are locked; a lifting mechanism, which is arranged on one of the cylindrical formwork units, and drives the connecting top rod to move up and down along its axial direction; a formwork opening and closing mechanism, which comprises a clamp and a driving part that drives the clamp to clamp or loosen the single formwork. The invention has the beneficial effect of automatically locking the single formwork and reducing the labor and working time of workers working at high altitudes.

Description

Technical Field

[0001] The present invention relates to the technical field of highway engineering bridge substructure construction, and more specifically, to an automatically opening and closing circular pier column steel formwork structure. Background Art

[0002] Cylindrical steel formwork is used in many engineering construction projects, such as residential building with smaller diameter, bridge piers, high-speed railway piers, etc. Cylindrical formwork has the advantages of good toughness, impact resistance, high strength, good wear resistance, etc. During use, the whole plate is screwed closed and positioned before pouring.

[0003] For bridges designed for general highway projects, such as those about 30 meters high, compared with slipforms, the round pier column qualitative steel formwork adopts graded connection, which has clearer force and is more economical and practical. The standard section height of the round pier column qualitative steel formwork ranges from 1 to 3 meters, and there are reinforcement bolts every 10 cm. Therefore, the traditional round pier column qualitative steel formwork is assembled by bolt connection. The height connection of the round pier column qualitative steel formwork can be completed on the ground, but the reinforcement bolts on both sides of the formwork must be completed by workers at high altitudes, which has a high safety risk factor. Secondly, if the formwork is assembled at a height of 8 meters, the workers will have to complete the assembly and disassembly of 160 bolts, which is too inefficient. In addition, the fatigue strength of several bolts is limited. Long-term loosening and tightening will cause fatigue damage of the bolts, thread slippage, etc., and the risk factor of high-altitude operations is relatively high. Therefore, the assembly of traditional round pier column qualitative steel formwork is both time-consuming and labor-intensive, and unsafe. Summary of the invention

[0004] An object of the present invention is to solve at least the above problems and to provide at least the advantages which will be described hereinafter.

[0005] In order to achieve these purposes and other advantages according to the present invention, there is provided an automatic opening and closing circular pier steel formwork structure, comprising:

[0006] The multi-section cylindrical formwork unit is detachably connected along the axial direction, and each cylindrical formwork unit includes:

[0007] The cylindrical template is formed by two single templates that are detachably hinged, and the two ends of the two adjacent cylindrical templates are provided with corresponding connecting holes along their axial directions;

[0008] A plurality of buckle locking members, each of which includes a male end and a female end, and each of the male end and the female end is disposed on two single templates;

[0009] A connecting push rod, which is slidably arranged up and down through the axially opposite connecting holes, and the connecting push rod is provided with a female end or a sub-end corresponding to the sub-end or the female end on the cylindrical template;

[0010] Wherein, when the connecting push rod moves downward a certain distance, the sub-end and the female end are locked;

[0011] A lifting mechanism is arranged on one of the cylindrical template units, and the lifting mechanism drives the connecting push rod to move up and down along its axial direction;

[0012] The template opening and closing mechanism is arranged on the same cylindrical template unit as the jacking mechanism. The template opening and closing mechanism includes a clamping hoop arranged around two single templates and a driving member driving the clamping hoop to clamp or loosen the single template.

[0013] Preferably, the sub-end includes a pair of locking pin holes, which are arranged on the side walls of the free ends of the two single templates opposite to each other;

[0014] The female end includes a cross bar with one end fixed on the connecting rod and a pair of locking pins arranged on the cross bar. When the connecting rod moves downward by a certain distance, the pair of locking pins are respectively inserted into a pair of locking pin holes.

[0015] Preferably, both ends of the connecting push rod are provided with threads, and a fixing sleeve is sleeved at the connection of the connecting push rods on two adjacent cylindrical templates, and the inner wall of the fixing sleeve is provided with threads.

[0016] Preferably, the driving member comprises:

[0017] A motor is arranged on one of the single mold plates, and a first reducer is connected to the output shaft of the motor;

[0018] a gear oil pump connected to the output shaft of the first reducer;

[0019] A hydraulic cylinder connected to the gear oil pump;

[0020] Wherein, the clamp is connected to the piston rod of the hydraulic cylinder, and when the piston rod is retracted, the clamp clamps the two single templates.

[0021] Preferably, the lifting mechanism comprises:

[0022] A bracket, which is arranged on one of the side walls of the single template;

[0023] The motor is arranged on the bracket, and has two output shafts, one of the output shafts of the motor is connected to the first reducer, and the other output shaft of the motor is connected to a second reducer;

[0024] A pair of pulleys, the pair of pulleys are arranged up and down, one of the pulleys is coaxially fixed with the second reducer, a V-belt is wound around the pair of pulleys, and the other pulley is rotatably arranged on the bracket;

[0025] The connecting rod comprises a rotating rod with one side coaxially rotating with a pulley located below, an oblique rod rotatably connected to the other side of the rotating rod, and a vertical rod rotatably connected to the upper side of the oblique rod;

[0026] A pair of transmission gears, the pair of transmission gears are arranged up and down, and the pair of transmission gears are rotatably connected to the upper and lower sides of the vertical rod respectively;

[0027] A pair of racks, the pair of racks are arranged on both sides of the transmission gear opposite to each other, the racks are meshed with the transmission gear, and one of the racks is fixed on the bracket;

[0028] A moving rod, which is movably arranged on the bracket up and down, and another rack is fixed on the moving rod;

[0029] The two output shafts on the motor, the output shaft of the second reducer, the axial direction of the pulley, the rotating shaft of the rotating rod, the rotating shaft of the inclined rod, the rotating shaft of the vertical rod, and the axial direction of the transmission gear are all perpendicular to the same plane, and the axial direction of the moving rod is parallel to the plane;

[0030] Wherein, the connecting push rod is fixed on the moving rod, and the axial direction of the moving rod is parallel to the axial direction of the connecting push rod.

[0031] Preferably, the two single templates are both semi-cylindrical in shape.

[0032] Preferably, annular convex plates are provided at both ends of the cylindrical template, and the connecting holes are provided on the convex plates.

[0033] Preferably, the hinge structure of the two single templates includes a pair of connecting ear plates respectively arranged on the two single templates and a connecting pin passing through the ear holes on the pair of connecting ear plates.

[0034] The present invention has at least the following beneficial effects:

[0035] First, the present invention can realize automatic locking, closing and opening (loosening) of multi-section cylindrical formwork units, reduce the workload of workers working at heights, improve work efficiency and increase safety factor.

[0036] Second, the locking is reliable, which can prevent the mold from exploding during concrete pouring.

[0037] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a side structural schematic diagram of the circular pier column formwork structure according to one of the technical solutions of the present invention;

[0039] Figure 2 Another side structural schematic diagram of the circular pier column formwork structure according to one of the technical solutions of the present invention;

[0040] Figure 3 A schematic structural diagram of the cylindrical formwork unit according to one of the technical solutions of the present invention;

[0041] Figure 4 It is a side structural schematic diagram of the jacking mechanism of one of the technical solutions of the present invention. DETAILED DESCRIPTION

[0042] The present invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0043] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the reagents and materials are commercially available unless otherwise specified; in the description of the present invention, the orientation or positional relationship indicated by the terms is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0044] like Figures 1 to 4 As shown, the meanings of the markings are as follows: cylindrical formwork unit 100, single formwork 1, connecting hole 11, snap-fit ​​locking piece 2, sub-end 21, female end 22, connecting jack 3, jacking mechanism 6, clamp 4, driving part 5, fixing sleeve 31, motor 51, gear oil pump 52, hydraulic cylinder 53, bracket 61, pulley 62, V-belt 63, rotating rod 64, inclined rod 65, vertical rod 66, transmission gear 67, rack 68, moving rod 69, convex plate 12, connecting ear plate 13, connecting pin 14, electromagnetic clutch 54, solar panel 7.

[0045] like Figures 1 to 4 As shown, the present invention provides an automatically opening and closing circular pier steel formwork structure, comprising:

[0046] The multi-section cylindrical formwork unit 100 is detachably connected along the axial direction, and each cylindrical formwork unit 100 comprises:

[0047] The cylindrical template is formed by two single templates 1 that are detachably hinged, and two adjacent cylindrical templates have corresponding connecting holes 11 along their axial directions at both ends; the connecting holes 11 are used to provide connecting positions for the two adjacent cylindrical templates.

[0048] A plurality of buckling and locking members 2, each of which comprises a sub-end 21 and a female end 22, and each of the sub-end 21 and the female end 22 is disposed on two single templates 1;

[0049] A connecting rod 3 is slidably inserted into the axially opposite connecting holes 11, and the connecting rod 3 is provided with a female end 22 or a sub-end 21 corresponding to the sub-end 21 or the female end 22 on the cylindrical template; wherein, when the connecting rod 3 moves downward a certain distance, the sub-end 21 and the female end 22 are locked;

[0050] The snap-fit ​​locking member 2 can be implemented in the following manner: the sub-end 21 includes a pair of locking pin holes, and the pair of locking pin holes are relatively arranged on the side walls on one side of the free ends of the two single templates 1; the female end 22 includes a cross bar with one end fixed on the connecting top rod 3 and a pair of locking pin shafts arranged on the cross bar. When the connecting top rod 3 moves downward a certain distance, the pair of locking pin shafts are respectively inserted into the pair of locking pin holes.

[0051] The jacking mechanism 6 is arranged on one of the cylindrical formwork units 100, and the jacking mechanism 6 drives the connecting push rod 3 to move up and down along its axial direction; the jacking mechanism 6 can use an electric cylinder or an oil cylinder to drive the connecting push rod 3 to move up and down.

[0052] The template opening and closing mechanism is arranged on the same cylindrical template unit 100 as the jacking mechanism 6, and the template opening and closing mechanism includes a clamp 4 arranged around two single templates 1 and a driving member 5 driving the clamp 4 to clamp or loosen the single template 1. The driving member 5 can use an electric cylinder or an oil cylinder to drive the clamp 4 to move back and forth along the radial direction of the cylindrical template to achieve clamping and loosening.

[0053] In the above technical solution, firstly, the multi-section cylindrical formwork units 100 are connected as one on the ground through the connecting top rod 3 to form a circular pier column steel formwork structure, and then the circular pier column steel formwork structure is fixed to the construction area in the vertical direction, and the template opening and closing mechanism is started, that is, the driving member 5 is started, so that the clamp 4 moves radially toward the circular pier column steel formwork structure to achieve clamping, and then the jacking mechanism 6 is started to drive the connecting top rod 3 to move downward along its axis so that the sub-end 21 and the female end 22 are locked, thereby realizing the automatic locking of the circular pier column steel formwork structure, and completing the locking of the cylindrical formwork units 100 on all sections at one time, significantly improving the assembly efficiency, and eliminating the need for construction personnel to perform high-altitude operations, reducing safety hazards. When disassembling, it is only necessary to start the jacking mechanism 6 and drive the connecting top rod 3 to move upward along its axis so that the sub-end 21 and the female end 22 are disengaged and loosened, thereby realizing the automatic unlocking of the circular pier column steel formwork structure without the need to manually disassemble the bolts, which significantly improves work efficiency.

[0054] The sub-end 21 includes a pair of locking pin holes, which are arranged on the side walls of the free ends of the two single templates 1 opposite to each other;

[0055] The female end 22 includes a cross bar with one end fixed on the connecting rod 3 and a pair of locking pins arranged on the cross bar. When the connecting rod 3 moves downward by a certain distance, the pair of locking pins are respectively inserted into a pair of locking pin holes. The cooperation between the locking pin holes and the locking pins can firmly fix the two single templates 1 together.

[0056] In another technical solution, both ends of the connecting mandrel 3 are provided with threads, and a fixing sleeve 31 is sleeved at the connection of the connecting mandrels 3 on two adjacent cylindrical templates, and a thread is provided on the inner wall of the fixing sleeve 31. The fixing sleeve 31 can move along the axial direction of the connecting mandrel 3 in a spiral manner, and the connection position can be adjusted to meet the needs of the up and down movement distance of the connecting mandrel 3, and the connection efficiency is high. The outer wall of the fixing sleeve 31 can also be set to a hexagonal shape to facilitate the use of a wrench to twist.

[0057] In another technical solution, the driving member 5 includes:

[0058] A motor 51 is disposed on one of the single mold plates 1, and a first reducer is connected to the output shaft of the motor 51;

[0059] a gear oil pump 52 connected to the output shaft of the first reducer;

[0060] A hydraulic cylinder 53 connected to the gear oil pump 52;

[0061] The clamp 4 is connected to the piston rod of the hydraulic cylinder 53 , and when the piston rod is retracted, the clamp 4 clamps the two single templates 1 .

[0062] In the above technical solution, the motor 51 is started, and the motor 51 drives the first reducer to rotate. The rotation of the first reducer drives the gear of the gear oil pump 52 to rotate. The gear oil pump 52 delivers oil to the hydraulic cylinder 53 to provide power for the hydraulic cylinder 53. The piston rod of the hydraulic cylinder is retracted, and the clamp 4 is pulled toward the single template 1, so that the two single templates 1 are clamped tightly. Due to the action of the connecting push rod 3, the single templates 1 of each section are clamped tightly, thereby realizing automatic clamping.

[0063] In another technical solution, the lifting mechanism 6 includes:

[0064] A bracket 61, which is arranged on a side wall of one of the single templates 1;

[0065] The motor 51 is arranged on the bracket 61, and the motor 51 has two output shafts. One of the output shafts of the motor 51 is connected to the first reducer, and the other output shaft of the motor 51 is connected to a second reducer; the motor 51 uses an electromagnetic clutch 54 to realize switching to achieve control of the two output shafts on the motor 51.

[0066] A pair of pulleys 62, the pair of pulleys 62 are arranged up and down, one of the pulleys 62 is coaxially fixed with the second reducer, a V-belt 63 is wound around the pair of pulleys 62, and the other pulley 62 is rotatably arranged on the bracket 61;

[0067] The connecting rod includes a rotating rod 64 which rotates coaxially with the pulley 62 located below on one side, an inclined rod 65 which is rotatably connected to the other side of the rotating rod 64, and a vertical rod 66 which is rotatably connected to the upper side of the inclined rod 65;

[0068] A pair of transmission gears 67, the pair of transmission gears 67 are arranged up and down, and the pair of transmission gears 67 are rotatably connected to the upper and lower sides of the vertical rod 66 respectively;

[0069] a pair of racks 68, the pair of racks 68 are disposed oppositely on both sides of the transmission gear 67, the racks 68 are meshed with the transmission gear 67, and one of the racks 68 is fixed on the bracket 61;

[0070] A moving rod 69 is movably disposed on the bracket 61, and another rack 68 is fixed on the moving rod 69;

[0071] The two output shafts on the motor 51, the output shaft of the second reducer, the axial direction of the pulley 62, the rotating shaft of the rotating rod 64, the rotating shaft of the inclined rod 65, the rotating shaft of the vertical rod 66, and the axial direction of the transmission gear 67 are all perpendicular to the same plane, and the axial direction of the moving rod 69 is parallel to the plane;

[0072] The connecting push rod 3 is fixed on the moving rod 69 , and the axial direction of the moving rod 69 is parallel to the axial direction of the connecting push rod 3 .

[0073] In the above technical solution, the motor 51 is started to drive the second reducer to rotate, and the rotation of the second reducer drives the pulley 62 located above to rotate, and the pulley 62 above drives the V-belt 63 to rotate, and the rotation of the V-belt 63 drives the pulley 62 located below to rotate, and the rotation of the pulley 62 below drives the rotating rod 64 to rotate, and then drives the upper end of the inclined rod 65 to move up and down, and then drives the vertical rod 66 to move up and down, and then drives the transmission gear 67 to roll along the rack 68. Since one rack 68 is fixed and the other rack 68 can move, due to the reaction of the force, the movable rack 68 moves up or down, thereby driving the moving rod 69 to move up or down, and finally drives the connecting top rod 3 to move up or down, so as to achieve the locking and loosening of the sub-end 21 and the female end 22. Through the setting of the above-mentioned lifting mechanism 6, it can be applied to various bridge designs, so that the connecting top rod 3 moves in an axial straight line, and provides sufficient power to connect the sub-end 21 and the female end 22.

[0074] In another technical solution, the two single templates 1 are both semi-cylindrical. The semi-cylindrical shape is evenly distributed, so that the hinge end and the catch and lock member are arranged opposite to each other, thereby improving the stability of the cylindrical template.

[0075] In another technical solution, an annular convex plate 12 is convexly provided at both ends of the cylindrical template, and the convex plate 12 is provided with the connecting hole 11 to facilitate the connection of the ejector rod 3 .

[0076] In another technical solution, the hinged structure of the two single templates 1 includes a pair of connecting ear plates 13 respectively arranged on the two single templates 1 and a connecting pin 14 passing through the ear holes of the pair of connecting ear plates 13. The connection method of the connecting ear plates 13 and the connecting pin 14 can completely disassemble the two single templates 1, and it is also convenient to connect the two single templates 1.

[0077] In order to save energy, the power supply device can use a solar panel 7. When installing, the solar panel 7 can be installed in the direction of the sunlight to facilitate the battery to store electricity. The battery can also be removed for charging, which is environmentally friendly.

[0078] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. Automatic opening and closing circular pier steel formwork structure, characterized by: include: The multi-section cylindrical formwork unit is detachably connected along the axial direction, and each cylindrical formwork unit includes: The cylindrical template is formed by two single templates that are detachably hinged, and the two ends of the two adjacent cylindrical templates are provided with corresponding connecting holes along their axial directions; A plurality of buckle locking members, each of which includes a male end and a female end, and each of the male end and the female end is disposed on two single templates; A connecting push rod is slidably arranged up and down through the axially opposite connecting holes, and the connecting push rod is provided with a female end or a sub-end corresponding to the sub-end or the female end on the cylindrical template; Wherein, when the connecting push rod moves downward a certain distance, the sub-end and the female end are locked; A lifting mechanism is arranged on one of the cylindrical template units, and the lifting mechanism drives the connecting push rod to move up and down along its axial direction; A template opening and closing mechanism, which is arranged on the same cylindrical template unit as the jacking mechanism, and the template opening and closing mechanism includes a clamping hoop arranged around two single templates and a driving member driving the clamping hoop to clamp or loosen the single template; Wherein, the sub-end includes a pair of locking pin holes, and the pair of locking pin holes are arranged on the side walls of one side of the free ends of the two single templates opposite to each other; The female end includes a cross bar with one end fixed on the connecting rod and a pair of locking pins arranged on the cross bar. When the connecting rod moves downward by a certain distance, the pair of locking pins are respectively inserted into a pair of locking pin holes. The driving member comprises: A motor is arranged on one of the templates, and a first reducer is connected to the output shaft of the motor; a gear oil pump connected to the output shaft of the first reducer; A hydraulic cylinder connected to the gear oil pump; Wherein, the clamp is connected to the piston rod of the hydraulic cylinder, and when the piston rod is retracted, the clamp clamps the two single templates; The lifting mechanism comprises: A bracket, which is arranged on one of the side walls of the single template; The motor is arranged on the bracket, and has two output shafts, one of the output shafts of the motor is connected to the first reducer, and the other output shaft of the motor is connected to a second reducer; A pair of pulleys, the pair of pulleys are arranged up and down, one of the pulleys is coaxially fixed with the second reducer, a V-belt is wound around the pair of pulleys, and the other pulley is rotatably arranged on the bracket; The connecting rod comprises a rotating rod with one side coaxially rotating with a pulley located below, an oblique rod rotatably connected to the other side of the rotating rod, and a vertical rod rotatably connected to the upper side of the oblique rod; A pair of transmission gears, the pair of transmission gears are arranged up and down, and the pair of transmission gears are rotatably connected to the upper and lower sides of the vertical rod respectively; A pair of racks, the pair of racks are arranged on both sides of the transmission gear opposite to each other, the racks are meshed with the transmission gear, and one of the racks is fixed on the bracket; A moving rod, which is movably arranged on the bracket up and down, and another rack is fixed on the moving rod; The two output shafts on the motor, the output shaft of the second reducer, the axial direction of the pulley, the rotating shaft of the rotating rod, the rotating shaft of the inclined rod, the rotating shaft of the vertical rod, and the axial direction of the transmission gear are all perpendicular to the same plane, and the axial direction of the moving rod is parallel to the plane; Wherein, the connecting push rod is fixed on the moving rod, and the axial direction of the moving rod is parallel to the axial direction of the connecting push rod.

2. The automatic opening and closing circular pier steel formwork structure according to claim 1, characterized in that: Both ends of the connecting push rod are provided with threads, and a fixing sleeve is sleeved at the connection of the connecting push rods on two adjacent cylindrical templates, and a thread is provided on the inner wall of the fixing sleeve.

3. The automatic opening and closing circular pier steel formwork structure according to claim 1, characterized in that: Both single templates are semi-cylindrical in shape.

4. The automatic opening and closing circular pier steel formwork structure according to claim 1, characterized in that: Annular convex plates are protruded at both ends of the cylindrical template, and the connecting holes are arranged on the convex plates.

5. The automatic opening and closing circular pier steel formwork structure according to claim 1, characterized in that: The hinged structure of the two single templates comprises a pair of connecting ear plates respectively arranged on the two single templates and a connecting pin shaft penetrating through ear holes on the pair of connecting ear plates.

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