Precast beam formwork device

Abstract

The invention discloses a precast beam formwork device, which belongs to the technical field of building construction and comprises a bottom formwork structure and two side formwork structures symmetrically arranged on the left side and the right side of the bottom formwork structure. The side mold structure comprises a plurality of mold plate assemblies which are spliced together, each mold plate assembly comprises a rack and a mold plate installed on one side of the rack, a grout stopping strip is arranged between the mold plates of every two adjacent mold plate assemblies, grout stopping grooves are formed in the mold plates, and the grout stopping strips are detachably installed in the grout stopping grooves. An air bag is arranged on the side, away from the concrete pouring face, of the grout stop strip, the lower end of the air bag is connected with an inflation pipe, and a valve is arranged at the end of the inflation pipe and connected with an inflation connector. The problem that a grout stop strip of an existing precast beam formwork is inconvenient to disassemble and assemble is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and in particular relates to a prefabricated beam template device. Background Art

[0002] In the process of bridge construction, in order to speed up the progress of on-site construction, the method of prefabricating T-beams in advance is usually adopted to improve construction efficiency. After the T-beam steel frame is tied, the T-beam steel frame is transported to the prefabricated beam template by a transfer trolley. The prefabricated beam template is closed with the transfer trolley to form a rigid mold, and then concrete is poured into the prefabricated beam template to form a T-beam.

[0003] Traditional prefabricated beam template joints are stopped by double-sided stop grouting strips or foam glue. However, each time the template is spliced, the previous stop grouting strips and foam glue need to be removed, and then the double-sided stop grouting strips and foam glue are reapplied. This method not only increases the labor intensity of workers, but also the stop grouting strips cannot be reused.

[0004] In the prior art, there is also a method of stopping grouting by cooperating with a slot and a rubber stop grout strip, but the size of the stop grout strip is larger than the slot in a natural state. When the stop grout strip needs to be pressed into the slot or removed or replaced, the stop grout strip is pressed against the inner wall of the slot, which makes the disassembly and assembly operation inconvenient. In particular, after the mold is removed, it is difficult to remove the stop grout strip when concrete is adhered between the stop grout strip and the slot. Therefore, it is necessary to improve the prior art. Summary of the invention

[0005] The invention provides a prefabricated beam template device, which is used to solve the problem that the grout stop strips of the existing prefabricated beam templates are inconvenient to disassemble and assemble.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] A precast beam formwork device comprises a bottom formwork structure and two side formwork structures symmetrically arranged on the left and right sides of the bottom formwork structure, the side formwork structure comprises a plurality of formwork assemblies spliced ​​together, the formwork assembly comprises a frame and a formwork installed on one side of the frame, a slurry-stopping strip is arranged between the formworks of two adjacent formwork assemblies, the formwork is provided with a slurry-stopping groove, and the slurry-stopping strip is detachably installed in the slurry-stopping groove; an air bag is arranged on the side of the slurry-stopping strip away from the concrete pouring surface, the lower end of the air bag is connected to an inflation tube, the end of the inflation tube is provided with a valve, and the valve is connected to an inflation joint.

[0008] Furthermore, the frame includes vertical channel steel, steel sections and multiple transverse channel steels; one side of the steel sections is connected to the vertical channel steel through multiple transverse channel steels, and the opposite side is connected to the template; the transverse channel steel located at the bottom is provided with a supporting channel steel, and the lower parts of the supporting channel steel and the vertical channel steel are both screwed with threaded steel for lifting the frame.

[0009] Furthermore, the material of the slurry-stopping strip and the airbag is silicone or rubber.

[0010] Furthermore, both left and right sides of the top surface of the bottom mold structure are provided with card slots, and sealing strips are detachably installed in the card slots, and the sealing strips are tightly connected to the templates of the two side mold structures respectively.

[0011] Furthermore, a slurry-stopping groove is provided on the jointing sides of two adjacent templates, and a slurry-stopping strip is detachably provided between the two slurry-stopping grooves.

[0012] Furthermore, the prefabricated beam formwork device also includes an auxiliary device, which includes a box and a handle; an inflator, an oil injector, a battery and a controller are arranged in the box, and a setting panel is arranged on the outside of the box; an air outlet, an oil nozzle, an air jet switch and an oil injection switch are arranged on the handle; the air outlet is connected to the inflator through an air pipe, the oil nozzle is connected to the oil injector through an oil pipe, and the oil injector is connected to the oil storage tank; the air jet switch, inflator, oil injection switch, oil injector, setting panel and battery are all connected to the controller.

[0013] Furthermore, the air outlet and the oil nozzle are vertically arranged on the left and right sides of the handle respectively, a grinding head is arranged on the front side of the handle, and the grinding head is rotatably connected to the handle through a rotating shaft, a driving motor is arranged inside the handle, and the driving motor is connected to the rotating shaft, a grinding switch is arranged on the outside of the handle, and the grinding switch and the driving motor are both connected to the controller.

[0014] Furthermore, an air pressure sensor is provided at the outlet of the inflator, and the air pressure sensor is connected to the controller. In the inflation mode, when the airbag pressure reaches a set value, the controller controls the inflator to stop automatically; the setting panel includes a display screen and a button module, and the display screen and the button module are both connected to the controller.

[0015] Furthermore, a storage box for storing the handle is provided on one side of the box body.

[0016] Furthermore, the box is installed on a mobile vehicle.

[0017] Due to the adoption of the above technical solution, the present invention has the following beneficial effects:

[0018] 1. The present invention provides an air bag on the side of the stop grout strip away from the concrete pouring surface. When disassembling and assembling, the air bag is in a deflated state, the thickness of the stop grout strip is smaller than the width of the stop grout groove, and there is a gap between the stop grout strip and the stop grout groove, which facilitates the disassembly and assembly of the stop grout strip, thereby improving the efficiency of template removal and splicing. After the splicing of two adjacent templates is completed, the air bag is filled with a proper amount of gas, so that the stop grout strip and the stop grout groove are closely connected, ensuring the sealing effect of the joint, thereby ensuring the stop grout effect.

[0019] 2. The present invention also provides an auxiliary device to facilitate the inflation of the airbag. In addition, the auxiliary device also has an oil spraying function. Before installing the stop grout strip in the stop grout groove, the oil outlet nozzle of the auxiliary device can spray lubricating oil to the stop grout groove and / or the stop grout strip facing the concrete casting surface. The lubricating oil forms an isolation surface on the inner side of the stop grout groove and / or the surface of the stop grout strip, which is conducive to removing the stop grout strip when removing the mold, and reduces the damage rate of the stop grout strip when removing it.

[0020] 3. The auxiliary device proposed in the present invention also has a grinding function. When concrete bonding occurs in the stop groove, the grinding head of the auxiliary device can be used to grind the concrete bonding area flat before installing the stop strip. In addition, in addition to inflating the airbag, the inflator can also blow high-pressure air into the stop groove to remove dust in the groove, which can further improve the sealing effect of the stop strip. The auxiliary device realizes multiple uses in one machine, is suitable for prefabricated beam formwork construction, and brings convenience to construction personnel.

[0021] 4. The auxiliary device proposed in the present invention integrates the air outlet, the oil nozzle, and the grinding head on the handle, which is convenient for the operator to operate with one hand and select to start the corresponding function switch as needed, which has good convenience.

[0022] 5. The present invention can effectively reduce the overall weight of the stop bar by combining the stop bar with the air bag. When a large number of stop bars are needed, the efficiency of carrying the stop bars can be effectively improved and the workload of operators can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of a prefabricated beam template device provided in Example 1 of the present invention;

[0024] Figure 2 is a schematic diagram of the structure of the template assembly provided in Example 1 of the present invention;

[0025] Figure 3 It is a schematic diagram of the coordination between the stopper strip and the template provided in Example 1 of the present invention;

[0026] Figure 4 is a schematic structural diagram of an auxiliary device provided in Example 2 of the present invention;

[0027] The marks in the attached drawings are: 1-bottom mold structure, 2-sealing strip, 3-side mold structure, 4-frame, 5-vertical channel steel, 6-section steel, 7-horizontal channel steel, 8-threaded steel, 9-template, 10-stop slurry strip, 11-air bag, 12-concrete pouring surface, 13-stop slurry groove, 14-box, 15-setting panel, 16-storage box, 17-handle, 18-air outlet, 19-oil nozzle, 20-grinding head, 21-jet switch, 22-oil spray switch, 23-grinding switch, 24-mobile trolley. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Example 1

[0030] like Figure 1-3 As shown, a precast beam formwork device includes a bottom formwork structure 1 and two side formwork structures 3 symmetrically arranged on the left and right sides of the bottom formwork structure 1. The side formwork structure 3 includes a plurality of formwork assemblies spliced ​​together, and the formwork assembly includes a frame 4 and a formwork 9 installed on one side of the frame 4.

[0031] The frame 4 includes a vertical channel steel 5, a steel section 6 and a plurality of transverse channel steels 7. One side of the steel section 6 is connected to the vertical channel steel 5 through a plurality of transverse channel steels 7, and the opposite side thereof is connected to the template 9. The transverse channel steel 7 located at the bottom is provided with a supporting channel steel, and the lower parts of the supporting channel steel and the vertical channel steel 5 are both screwed with threaded steel 8 for lifting the frame 4. The lifting and leveling of the entire template assembly is achieved by rotating the threaded steel 8.

[0032] A stop grout strip 10 is provided between the templates 9 of two adjacent template assemblies, and the template 9 is provided with a stop grout groove 13, and the stop grout strip 10 is detachably installed in the stop grout groove 13. Specifically, the splicing sides of the two adjacent templates 9 are provided with a stop grout groove 13, and a stop grout strip 10 is detachably provided between the two stop grout grooves 13. Such a configuration is conducive to improving the sealing between the stop grout strip 10 and the template 9, thereby providing a stop grout effect.

[0033] An air bag 11 is provided on one side of the stop bar 10 away from the concrete pouring surface 12, and an inflation tube is connected to the lower end of the air bag 11, and a valve is provided at the end of the inflation tube, and the valve is connected to an inflation joint. The material of the stop bar 10 and the air bag 11 is silicone or rubber. In this embodiment, the material of the stop bar 10 and the air bag 11 is rubber. When the valve is opened, the air bag 11 can be inflated, and when the valve is closed, the air bag 11 can be deflated.

[0034] The present invention provides an air bag 11 on the side of the stop grout strip 10 away from the concrete pouring surface 12. When disassembling, the air bag 11 is in a deflated state, the thickness of the stop grout strip 10 is less than the width of the stop grout groove 13, and there is a gap between the stop grout strip 10 and the stop grout groove 13, which facilitates the disassembly and assembly of the stop grout strip 10, thereby improving the efficiency of removing and splicing the template 9. After the splicing of two adjacent templates 9 is completed, the air bag 11 is filled with a proper amount of gas, so that the stop grout strip 10 and the stop grout groove 13 are closely connected, ensuring the sealing effect of the joint, thereby ensuring the stop grout effect.

[0035] The present invention can effectively reduce the overall weight of the stop bar 10 by combining the stop bar 10 with the air bag 11. When a large number of stop bars 10 are needed, the efficiency of carrying the stop bars 10 can be effectively improved and the workload of operators can be reduced.

[0036] In addition, card grooves are opened on the left and right sides of the top surface of the bottom mold structure 1, and sealing strips 2 are detachably installed in the card grooves. The sealing strips 2 are tightly connected to the templates 9 of the two side mold structures 3 respectively, thereby improving the sealing between the bottom mold structure 1 and the two side mold structures 3 and having a better slurry-stopping effect.

[0037] Example 2

[0038] like Figure 4 As shown, on the basis of Example 1, the prefabricated beam formwork device in this embodiment further includes an auxiliary device, which includes a box 14 and a handle 17. An inflator, an oil sprayer, a battery and a controller are arranged in the box 14, and a setting panel 15 is arranged on the outside of the box 14. An air outlet 18, an oil nozzle 19, an air jet switch 21 and an oil spray switch 22 are arranged on the handle 17. The air outlet 18 is connected to the inflator through an air pipe, the oil nozzle 19 is connected to the oil sprayer through an oil pipe, and the oil sprayer is connected to an oil storage barrel. The air jet switch 21, the inflator, the oil spray switch 22, the oil sprayer, the setting panel 15 and the battery are all connected to the controller. When the air jet switch 21 is started, the controller controls the inflator to work, and the generated high-pressure airflow is transmitted to the air outlet 18. When the oil spray switch 22 is started, the controller controls the oil sprayer to work, extracts the lubricating oil in the oil storage barrel and transmits it to the oil nozzle 19, and sprays it out in an atomized form. The operating parameters of the inflator and injector are set on the setup panel.

[0039] Specifically, the air outlet 18 and the oil nozzle 19 are respectively arranged vertically on the left and right sides of the handle 17, and a grinding head 20 is arranged on the front side of the handle 17. The grinding head 20 is rotatably connected to the handle 17 through a rotating shaft. A driving motor is arranged inside the handle 17, and the driving motor is connected to the rotating shaft. A grinding switch 23 is arranged outside the handle 17, and the grinding switch 23 and the driving motor are both connected to the controller. When the grinding switch 23 is started, the controller controls the driving motor to rotate, and the driving motor drives the grinding head 20 to rotate to perform the grinding operation. The rotation speed of the driving motor can be set by the setting panel.

[0040] The outlet of the inflator is provided with an air pressure sensor, which is connected to the controller. In the inflation mode, when the air pressure of the airbag 11 reaches the set value, the controller controls the inflator to stop automatically. The setting panel 15 includes a display screen and a key module, which are both connected to the controller. The display screen and the key module are used to set and display the working parameters of the inflator, the fuel injector and the drive motor.

[0041] In addition, a storage box 16 for storing the handle 17 is provided on one side of the box body 14, so as to facilitate the storage of the handle 17. The box body 14 is installed on a mobile trolley 24, so as to facilitate the movement of the auxiliary device.

[0042] The auxiliary device provided by the present invention is provided with an inflator to facilitate the inflation of the airbag 11. In addition, the auxiliary device also has an oil spraying function. Before installing the stop grout strip 10 in the stop grout groove 13, lubricating oil can be sprayed to the stop grout groove 13 and / or the stop grout strip 10 toward the concrete casting surface 12 through the oil nozzle 19 of the auxiliary device. The lubricating oil forms an isolation surface on the inner side of the stop grout groove 13 and / or the surface of the stop grout strip 10, which is conducive to removing the stop grout strip 10 when demolding, and reduces the damage rate of the stop grout strip 10 when removing it.

[0043] The auxiliary device proposed in the present invention also has a grinding function. When concrete bonding occurs in the stop grout groove 13, the grinding head 20 of the auxiliary device can be used to grind the concrete bonding area flat before installing the stop grout strip 10. In addition, the inflator can not only inflate the airbag 11, but also blow high-pressure air to the stop grout groove 13 to remove dust in the groove, which can further improve the sealing effect of the stop grout strip 10. The auxiliary device realizes multiple uses in one machine, is suitable for the construction of prefabricated beam formwork 9, and brings convenience to construction personnel.

[0044] The auxiliary device proposed in the present invention integrates the air outlet 18, the oil nozzle 19, and the grinding head 20 on the handle 17, which is convenient for the operator to operate with one hand and select to start the corresponding function switch as needed, which has good convenience.

[0045] The above description is a detailed description of the preferred feasible embodiments of the present invention, but the embodiments are not intended to limit the scope of the patent application of the present invention. All equivalent changes or modified changes completed under the technical spirit suggested by the present invention should fall within the patent scope covered by the present invention.

Claims

1. A precast beam template device, comprising a bottom template structure and two side template structures symmetrically arranged on the left and right sides of the bottom template structure, the side template structure comprising a plurality of template assemblies spliced ​​together, the template assembly comprising a frame and a template installed on one side of the frame, a slurry stop strip is arranged between the templates of two adjacent template assemblies, characterized in that: The template is provided with a slurry-stopping groove, and the slurry-stopping strip is detachably installed in the slurry-stopping groove; an air bag is arranged on the side of the slurry-stopping strip away from the concrete pouring surface, the lower end of the air bag is connected to an inflation tube, the end of the inflation tube is provided with a valve, and the valve is connected to an inflation joint.

2. A prefabricated beam formwork device according to claim 1, characterized in that: The frame includes vertical channel steel, steel sections and multiple transverse channel steels; one side of the steel sections is connected to the vertical channel steel through multiple transverse channel steels, and the opposite side is connected to the template; the transverse channel steel located at the bottom is provided with a supporting channel steel, and the lower parts of the supporting channel steel and the vertical channel steel are both screwed with threaded steel for lifting the frame.

3. A prefabricated beam formwork device according to claim 1, characterized in that: The materials of the slurry-stopping strip and the airbag are silicone or rubber.

4. A prefabricated beam formwork device according to claim 1, characterized in that: The left and right sides of the top surface of the bottom mold structure are both provided with card slots, and sealing strips are detachably installed in the card slots, and the sealing strips are tightly connected to the templates of the two side mold structures respectively.

5. The precast beam formwork device according to claim 1, characterized in that: The splicing sides of two adjacent templates are each provided with a slurry-stop groove, and a slurry-stop strip is detachably disposed between the two slurry-stop grooves.

6. A prefabricated beam formwork device according to claim 5, characterized in that: It also includes an auxiliary device, which includes a box and a handle; an inflator, a fuel injector, a battery and a controller are arranged in the box, and a setting panel is arranged on the outside of the box; an air outlet, a fuel outlet nozzle, an air jet switch and a fuel injection switch are arranged on the handle; the air outlet is connected to the inflator through an air pipe, the fuel outlet nozzle is connected to the fuel injector through an oil pipe, and the fuel injector is connected to the oil storage tank; the air jet switch, inflator, fuel injection switch, fuel injector, setting panel and battery are all connected to the controller.

7. A precast beam formwork device according to claim 6, characterized in that: The air outlet and the oil nozzle are respectively arranged vertically on the left and right sides of the handle. A grinding head is arranged on the front side of the handle. The grinding head is rotatably connected to the handle through a rotating shaft. A driving motor is arranged inside the handle, and the driving motor is connected to the rotating shaft. A grinding switch is arranged on the outside of the handle, and the grinding switch and the driving motor are both connected to the controller.

8. A precast beam formwork device according to claim 6, characterized in that: The outlet of the inflator is provided with an air pressure sensor, which is connected to the controller. In the inflation mode, when the air bag pressure reaches a set value, the controller controls the inflator to stop automatically; the setting panel includes a display screen and a button module, which are both connected to the controller.

9. A prefabricated beam formwork device according to claim 6, characterized in that: A storage box for storing the handle is arranged on one side of the box body.

10. The prefabricated beam formwork device according to claim 6, characterized in that: The box is installed on a mobile trolley.

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