A movable building construction device

Abstract

The present invention relates to a movable construction device, which comprises a chute main body, a sliding bracket, a slide rail, a formwork support unit, a connecting rod and a connecting beam. The sliding bracket can be rotatably installed in a support ring at the lower end of the chute main body through a connecting rod at the upper end. A formwork support unit group composed of two formwork support units can also be rotatably installed in the support ring through a connecting rod at the upper end. Pushing the present invention and the tanker synchronously along the slide rail can complete the pouring of the whole section. The formwork support unit can be flexibly pushed to the working surface where construction is required through walking wheels, and can be stably supported on the foundation through support legs after assembly. The I-shaped framework allows workers to walk and work safely and freely under the framework. The adjacent formwork support units are first positioned by using a connecting rod connected by threads, and then fixed into an integral body through a horizontal connecting beam, an inclined connecting beam and a fixing structure, and can be applied and popularized in the formwork support of tunnels and pipe gallery roofs with narrow working surfaces, tight construction periods and special positions.

Description

Technical Field

[0001] The invention relates to a movable building construction device. Background Art

[0002] At present, the construction process of tunnels generally includes tunnel excavation, initial tunnel support and concrete pouring. Traditional formwork is generally used for initial tunnel support, but it has the disadvantages of high safety risks, low efficiency, large material consumption, high long-term rental price, and difficult to ensure the quality of concrete pouring. At the same time, the frame tubes in the traditional formwork lack stability before they are formed as a whole. Workers are at great risk in the process of supporting and dismantling the frame, and it is difficult to control risks such as falling objects and hitting objects; the support and dismantling of the frame tubes involve a high workload and last for a long time, which seriously affects other sub-items; the assembly quality of wooden formwork is greatly affected by the main factors, and the quality requirements of the concrete surface flatness, front line straightness, adjacent section misalignment, etc. are difficult to guarantee; the turnover rate of materials such as square wood and formwork is low, and they are easy to lose and damage, and need to be constantly updated, and their use costs are high. In addition, the long-term rental costs of frame tubes, buckles and other components are also high. Truck pumps are generally used for concrete pouring, but the layout of truck pumps is limited by the construction site. Even if the site conditions are suitable for supporting truck pumps, the width of the excavated foundation pit limits the amount of concrete that can be poured at one time. Frequent relocation is required to complete the pouring, which will also lead to extended pouring time and increased machinery costs.

[0003] It can be seen that in the prior art, different devices are required in the initial support stage and concrete pouring stage of the tunnel, but these devices are not suitable for tunnel construction, which will increase construction costs and extend the construction period. It is urgent to develop a construction device that can solve the above-mentioned technical problems existing in the top slab formwork of tunnels and pipe galleries with narrow working surfaces, tight construction periods, and special locations such as cable tunnels. Summary of the invention

[0004] The object of the present invention is to provide a movable construction device which can solve the above-mentioned problems.

[0005] To achieve the above-mentioned purpose, a movable construction device of the present invention adopts the following technical solution:

[0006] A movable construction device, comprising a chute main body, a sliding bracket, a slide rail, a formwork support unit, a connecting rod and a connecting beam. The chute main body includes a sliding cavity for concrete to flow along and a pouring port at the rear end. A baffle assembly is installed at the rear end of the chute main body. The baffle assembly includes an upper baffle fixed above the chute main body and a lower baffle hinged at the upper end of the chute main body. The size of the lower baffle is adapted to the size of the pouring port. Support rings are installed at both ends of the chute main body. The sliding bracket includes a connecting rod at the upper end. An opening is provided on the support ring for the connecting rod or the connecting rod to be inserted and rotatably engaged therewith. The sliding bracket further includes a directional wheel at the lower end, and the directional wheel is used for guiding and moving along the slide rail. The height of the formwork support unit is greater than the height of the sliding bracket. The formwork support unit includes an I-shaped frame, a jack and a moving module. The frame includes an upper cross beam, a lower cross beam and a column fixed between the middle parts of the two. The jack includes a jack support column, a lifting screw and a jack plate. The jack support column is fixed above the upper cross beam. The lifting screw is threadedly installed in the jack support column. The jack plate is circumferentially rotatably installed at the upper end of the lifting screw. A through hole is provided on the jack plate. The connecting rod includes a large-diameter section and a small-diameter section. The size of the small-diameter section is adapted to the size of the through hole to be inserted therein and rotate therein. The outer diameter of the large-diameter section is greater than the size of the through hole so that the shoulder can be blocked by the edge of the through hole. A threaded section is processed at the end of the small-diameter section away from the large-diameter section. A threaded surface is provided on the inner wall surface of the large-diameter section to be in mating engagement with the threaded section. The moving module includes a walking wheel and a support leg at the lower end. The size of the walking wheel is adapted to the size of the slide rail to walk along it. The support leg includes a locked state in which the formwork support unit can walk through the walking wheel and a supported state in which it is lowered to stably support on the foundation to prevent the formwork support unit from walking through the walking wheel. The connecting beam includes a horizontal connecting beam and an inclined connecting beam. The horizontal connecting beam is used to fix the upper cross beams of adjacent formwork support units. The inclined connecting beam is used to fix the columns of adjacent formwork support units. A fixing structure is provided on the lower cross beam.

[0007] The support leg includes a fixing frame, a movable frame, a hook, a reserved hole and a pin shaft. The fixing frame is fixedly installed at the lower end of the lower cross beam. The movable frame is rotatably installed at the lower end of the fixing frame. The upper end of the hook is fixed on the lower cross beam, and the lower end of the hook is suspended. The reserved hole is provided on the movable frame to cooperate with the hook. Corresponding pin holes for inserting the pin shaft are provided on the fixing frame and the movable frame.

[0008] Three of the jacks are arranged at intervals on the upper cross beam, and the middle jack is located at the central position of the upper cross beam.

[0009] The fixing structure includes bolt perforations formed in the lower cross beam.

[0010] Along the length direction of the lower cross beam, the fixing frame is located outside the walking wheels, and the hook and the fixing frame are located at both ends in the width direction of the lower cross beam.

[0011] The frame includes strengthening braces, and the strengthening braces are installed between the two ends of the upper cross beam and the upper ends of the columns, and between the two ends of the lower cross beam and the lower ends of the columns.

[0012] The chute main body includes a plurality of chute units connected in sequence end to end. Adjacent two chute units are connected by insertion and bolts are installed at the insertion connection.

[0013] The beneficial effects of the present invention are as follows: An opening is provided on the support ring of the present invention, and the connecting rod and the link can be quickly and conveniently assembled and disassembled. In the initial stage of concrete pouring, a height difference is formed at both ends of the chute main body by means of the height difference between the bottom of the foundation trench and the edge of the trench for pouring the initial tunnel section. As the pouring progresses, the entire chute main body will enter the foundation trench, and a formwork support unit group composed of two formwork support units is used to replace the sliding support at the front end of the chute main body to ensure that the rear end of the chute main body is inclined downward. Both the formwork support unit group and the sliding support can roll along the guide of the slide rail, so during the entire pouring process, it is only necessary to push the present invention along the slide rail to move synchronously with the tanker, and there is no need to use a truck-mounted pump.

[0014] At the same time, the frame of the formwork support unit is in an I shape, which allows workers to walk and work safely and freely under the frame body, effectively solving the problems of narrow working face in the cable tunnel project and the danger of construction adjacent to the slope. It is especially suitable for the formwork support of tunnels and pipe gallery roof slabs with narrow working face, tight construction period and special location.

[0015] When the legs in the formwork support unit are in the locked state, the formwork support unit can be flexibly moved by pushing with the walking wheels. After the formwork support unit is moved to the position, the legs are switched to the supporting state, and the formwork support unit can be stably supported on the foundation to meet the formwork erection requirements. Between adjacent formwork support units, first use the link connected by threads for positioning, and then fix them into a whole through the horizontal connecting beam, the inclined connecting beam and the fixing structure. It not only has good overall stability, is beneficial to reducing construction risks, but also is beneficial to simplifying construction procedures, shortening the construction period, accelerating the overall progress of the project, saving round steel pipes and fasteners, reducing the rental cost of related materials, saving labor and reducing labor costs. Therefore, the present invention is worthy of application and popularization in the formwork support of tunnels and pipe gallery roof slabs with narrow working face, tight construction period and special location. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of an embodiment of a movable building construction device of the present invention;

[0017] Figure 2 is Figure 1 a side view of;

[0018] Figure 3 is Figure 1 a partially enlarged view at position A in;

[0019] Figure 4 is Figure 1 a structural schematic diagram of a working state of a movable building construction device;

[0020] Figure 5 is Figure 1 a structural schematic diagram of the formwork support unit in;

[0021] Figure 6 is

[0022] Figure 7 is Figure 1 a structural schematic diagram of another working state of the movable building construction device in;

[0023] Figure 8 is Figure 5 a partial schematic diagram at the support system in. Detailed implementation manner

[0024] An embodiment of a movable building construction device of the present invention:

[0025] The specific structure of a movable building construction device of the present invention is as Figures 1 to 8 shown, and it includes a chute main body 1, a sliding support 2, a slide rail 3, a formwork support unit, a connecting rod 7, and a connecting beam 8. The chute main body 1 includes a baffle assembly 11 and a plurality of chute units 12 connected in series end to end. Adjacent two of the chute units 12 are connected by insertion, and bolts are installed at the insertion connection to further fix the effect. A support ring 13 is fixed at the lower end of the chute unit 12, and the rear end of the support ring 13 has an opening.

[0026] The sliding support 2 includes a connecting rod 21 at the upper end. The cross-sectional shape of the connecting rod 21 is circular, and the shape of the support ring 13 fits with the shape of the connecting rod 21 so that the two can rotate relative to each other. The sliding support 2 further includes a directional wheel 22 at the lower end, and the directional wheel 22 is used for guiding and moving along the slide rail 3.

[0027] The chute unit 12 is in the shape of a square cylinder. The baffle assembly 11 is installed at the rearmost end of the chute main body 1. The baffle assembly 11 includes an upper baffle 14 fixed above the chute main body 1 and a lower baffle 15 hinged to the upper end of the chute main body 1. The function of the baffle assembly 11 is to prevent the concrete sliding down along the chute main body 1 during the pouring process from impacting forward and failing to fall at the required pouring position. After the chute main body 1 is tilted, the lower baffle 15 remains vertical under the action of gravity, while the lower end of the pouring port at the rear end of the chute main body 1 will tilt forward, thus forming a downward opening between the chute main body 1 and the lower baffle 15 to ensure that the concrete can only flow out from the lower end to the required pouring position.

[0028] Each formwork support unit includes an I-shaped frame 4, a moving module 5 at the lower end, and a jack 6 at the upper end. The I-shaped frame 4 includes an upper cross beam 41, columns 42, and a lower cross beam 43. The upper ends of the columns 42 are fixed in the middle of the upper cross beam 41, and the lower ends are fixed in the middle of the lower cross beam 43. Reinforcing braces 44 are provided between both ends of the upper cross beam 41 and the upper ends of the columns 42, and between both ends of the lower cross beam 43 and the lower ends of the columns 42. The moving module 5 can be used to drive the formwork support unit to move and can also provide lower support after the formwork support unit is positioned. Bolt through holes are provided on the upper cross beam 41, the lower cross beam 43, and the columns 42. In other embodiments, the reinforcing braces can be omitted, but in this case, the strength of the formwork support unit will be slightly reduced; the bolt through holes on the lower cross beam 43 can also be replaced by other fixing structures such as pin holes and tying grooves.

[0029] Three jacks 6 for adjusting the support height are installed at intervals above the upper cross beam 41. The jack 6 includes a jack pillar 61, a lifting screw 62, and a jack plate 63. The jack pillar 61 is welded and fixed or fixed in other ways above the upper cross beam 41. A threaded surface is provided on the inner wall surface of the jack pillar 61. The lifting screw 62 is threadedly installed on the jack pillar 61. The jack plate 63 is circumferentially rotatably installed at the upper end of the lifting screw 62. When a certain position on the upper cross beam 41 is low and the support for the formwork is unstable, rotating and raising the lifting screw 62 can drive the corresponding jack plate 63 to rise so that the upper plane of each jack plate 63 is coplanar, thus stably supporting the formwork. The jack plate 63 is rotationally matched with the lifting screw 62, so the lifting screw 62 can also rotate to achieve lifting in the case where the jack plate 63 cannot rotate.

[0030] A through hole 64 is formed in the top support plate 63 in the middle. The connecting rod 7 includes a large-diameter section 71 and a small-diameter section 72. The size of the small-diameter section 72 is adapted to the size of the through hole 64 to be inserted therein and rotatable therein. The large-diameter section 71 is a tubular structure, and the outer diameter of the large-diameter section 71 is larger than the size of the through hole 64. A threaded section 73 is formed by machining the end of the small-diameter section 72 away from the large-diameter section 71. A threaded surface adapted to the threaded section 73 is provided on the inner wall surface of the large-diameter section 71. When it is necessary to use the formwork support unit to support the chute body 1, the two formwork support units are pushed to the appropriate positions, and the connecting rod 7 is correspondingly inserted into the through holes 64 of the two top support plates 63 to initially position the two formwork support units. Then, a horizontal connecting beam 81 is fixed at the ends of the two upper cross beams 41, and an inclined connecting beam 82 is cross-fixed between the two columns 42 to fix the two formwork support units together. Finally, a fixing bolt 74 is installed on the threaded section 73 to fix the connecting rod 7 to the two formwork support units.

[0031] The moving module 5 includes traveling wheels 51 and legs. The legs include a locked state and a supporting state. The legs include a fixed frame 52, a movable frame 53, a hook 54, a reserved hole 55 and a pin shaft 57. The fixed frame 52 is fixedly installed at the lower end of the lower cross beam 43. The movable frame 53 is rotatably installed below the fixed frame 52 through a hinge. The upper end of the hook 54 is fixed on the lower cross beam 43, and the lower end of the hook 54 is suspended. The reserved hole 55 is formed in the movable frame 53 to cooperate with the hook 54. Corresponding pin holes 56 for inserting the pin shaft 57 are formed in the fixed frame 52 and the movable frame 53.

[0032] When in use, the running wheel 51 is locked so that it can no longer move in all directions, and then the legs are switched to the supporting state, specifically as follows: the hook 54 is moved to withdraw it from the reserved hole 55, and the movable frame 53 rotates downward under the action of gravity. At this time, the fixed frame 52 corresponds to the pin hole 56 on the movable frame 53. The pin shaft 57 is inserted into the pin hole 56 to fix the movable frame 53 in the downward state to prevent it from rotating. When the movable frame 53 is in the downward state, its lower end surface is lower than the lower end surface of the running wheel 51 and is used to bear the force, so that the formwork support is stable. When the movable frame 53 is buckled by the hook 54 and is in a locked state, its lower end is higher than the running wheel 51 so as not to affect the flexible movement of the formwork support unit. In the length direction of the lower cross beam 43, the fixed frame 52 and the movable frame 53 are located outside the walking wheel 51, and the hook 54 and the fixed frame 52 are located at both ends in the width direction of the lower cross beam 43. Therefore, when the movable frame 53 needs to be locked by the hook 54, the movable frame 53 needs to be rotated along the width direction of the lower cross beam 43. Reasonable setting of the horizontal distance between the fixed frame 52 and the walking wheel 51 can ensure that the fixed frame 52 and the movable frame 53 will not interfere with the walking wheel 51 sliding along the slide rail 3. In other embodiments, the hook 54 can also be located at the outer end of the fixed frame 52 along the length direction of the lower cross beam 43.

[0033] When the present invention is used in the initial support stage of a tunnel, the formwork frame unit is first pushed into the area to be constructed, and then the connecting rod 7 is inserted into the through hole 64 to preliminarily position the two adjacent formwork frame units in front and behind, and then the two preliminarily positioned formwork frame units are fixed together using the horizontal connecting beam 81 and the inclined connecting beam 82; after all the formwork frames are fixed in pairs in the above manner, a large diameter section 71 and a part of a small diameter section 72 extend from the upper end of each group of formwork frame unit groups, and the large diameter section 71 and the small diameter section 72 are threadedly connected between the two adjacent groups of formwork frame unit groups to achieve pre-positioning, and then the corresponding upper beams 41 and lower beams 43 of the two adjacent groups of formwork frame unit groups are correspondingly installed with high-strength bolts to complete the assembly of the formwork frames; locking the walking wheels 51 and lowering the movable frame 53 can make the formwork frame stand stably on the foundation and a template can be set up above this formwork frame for initial support of the tunnel.

[0034] When the present invention is used in the concrete pouring stage, first assemble the chute main body 1 and place one end of the chute main body 1 in the foundation trench and the other end on the edge of the foundation trench. Rely on the height difference between the bottom and the edge of the foundation trench to form a height difference at both ends of the chute main body 1 for the pouring of the initial tunnel section. As the pouring progresses, the entire chute main body 1 will enter the foundation trench. At this time, remove the sliding support 2 at the front end from the support ring, and install the formwork support unit group composed of two formwork support units into the support ring 13 through the connecting rod 7. The height difference between the front formwork support unit group and the rear sliding support 2 causes the rear end of the chute main body 1 to tilt downward for the concrete to flow. The lifting screw 62 and the top support plate 63 on the formwork support unit group without the connecting rod 7 can be removed from the top support column 61 to prevent them from interfering with the downward tilt of the chute main body 1. Both the formwork support unit group and the sliding support 2 can roll along the guide rail 3. Therefore, during the entire pouring process, only need to push the present invention along the guide rail 3 to move synchronously with the tanker, and there is no need to use a truck-mounted pump.

[0035] In this embodiment, the upper cross beam 41, the column 42, the lower cross beam 43, the horizontal connecting beam 81 and the inclined connecting beam 82 are all made of square steel with a size of 80mm x 80mm x 5mm. In other embodiments, each component can also be made of steel of other grades / sizes.

[0036] In other embodiments, the number of the top supports provided on a single formwork support unit can also be other numbers, and only need to open through holes 64 for installing the connecting rod 7 on the adapted top supports.

[0037] Finally, it should be noted that: in the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 to the present invention.

[0038] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "install", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Any other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention shall be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims

1. A movable construction device, characterized in that: It includes a chute main body, a sliding bracket, a slide rail, a formwork support unit, a connecting rod and a connecting beam. The chute main body includes a sliding cavity for concrete to flow along and a pouring port at the rear end. A baffle assembly is installed at the rear end of the chute main body. The baffle assembly includes an upper baffle fixed above the chute main body and a lower baffle hinged at the upper end of the chute main body. The size of the lower baffle is adapted to the size of the pouring port. Support rings are installed at both ends of the chute main body. The sliding bracket includes a connecting rod at the upper end. An opening is provided on the support ring for the connecting rod or the connecting rod to be inserted and rotatably engaged therewith. The sliding bracket further includes a directional wheel at the lower end, and the directional wheel is used for guiding and moving along the slide rail; the height of the formwork support unit is greater than the height of the sliding bracket. The formwork support unit includes an I-shaped frame, a jack and a moving module. The frame includes an upper cross beam, a lower cross beam and a column fixed between the middle parts of the two. The jack includes a jack support column, a lifting screw rod and a jack plate. The jack support column is fixed above the upper cross beam. The lifting screw rod is threadedly installed in the jack support column. The jack plate is circumferentially rotatably installed at the upper end of the lifting screw rod. A through hole is provided on the jack plate. The connecting rod includes a large-diameter section and a small-diameter section. The size of the small-diameter section is adapted to the size of the through hole to be inserted therein and rotate therein. The outer diameter of the large-diameter section is greater than the size of the through hole so that the shoulder can be blocked by the edge of the through hole. The end of the small-diameter section away from the large-diameter section is processed with a thread to form a threaded section. A thread surface that fits and mates with the threaded section is provided on the inner wall surface of the large-diameter section. The moving module includes a walking wheel and a support leg at the lower end. The size of the walking wheel is adapted to the size of the slide rail to walk along it. The support leg includes a locked state in which the formwork support unit can walk through the walking wheel and a supported state in which it is put down to stably support on the foundation to prevent the formwork support unit from walking through the walking wheel; the connecting beam includes a horizontal connecting beam and an inclined connecting beam. The horizontal connecting beam is used to fix the upper cross beams of adjacent formwork support units. The inclined connecting beam is used to fix the columns of adjacent formwork support units. A fixing structure is provided on the lower cross beam.

2. The movable construction device according to claim 1, characterized in that: The support leg includes a fixed frame, a movable frame, a hook, a reserved hole and a pin shaft. The fixed frame is fixedly installed at the lower end of the lower cross beam. The movable frame is rotatably installed at the lower end of the fixed frame. The upper end of the hook is fixed on the lower cross beam. The lower end of the hook is suspended. The reserved hole is provided on the movable frame to cooperate with the hook. Corresponding pin holes for the pin shaft to be inserted are provided on the fixed frame and the movable frame.

3. The movable construction device according to claim 1, characterized in that: Three of the jacks are arranged at intervals on the upper cross beam, and the middle jack is located at the center position of the upper cross beam.

4. A movable building construction device according to claim 1, characterized in that: The fixing structure includes bolt through holes formed in the lower cross beam.

5. A movable building construction device according to claim 2, characterized in that: Along the length direction of the lower cross beam, the fixing frame is located outside the walking wheels, and the hook and the fixing frame are located at both ends of the lower cross beam in the width direction.

6. A movable building construction device according to claim 1, characterized in that: The frame includes reinforcing braces, and the reinforcing braces are installed between the two ends of the upper cross beam and the upper ends of the columns and between the two ends of the lower cross beam and the lower ends of the columns.

7. A movable building construction device according to any one of claims 1 to 6, characterized in that: The chute main body includes a plurality of chute units connected in sequence end to end, and adjacent two chute units are connected by insertion and bolts are installed at the insertion connection.

Images